РЕМЕНЬ С ТЕРМОПЛАСТИЧНОЙ ОБОЛОЧКОЙ

Изобретение относится к приводным ремням и способу их изготовления. Ремень содержит тело 10 из эластомерного материала, работающий на растяжение элемент 20, расположенный по длине указанного тела 10, множество зубцов 15, расположенных по указанному телу 10, имеющих первую поверхность для взаимодействия со звездочкой и выполненных поперек длины указанного тела 10 с заданным шагом, слой 30 из полиэтилена со сверхвысокой молекулярной массой, находящейся в диапазоне от 3000000 до 7000000 г/моль, который имеет заданную толщину и соединен с указанными зубцами 15, и слой эластомерного материала, введенный между указанным работающим на растяжение элементом 20 и указанным слоем 30 из полиэтилена со сверхвысокой молекулярной массой. Технический результат заключается в снижении образования пыли и отходов при эксплуатации ремня. 6 н. и 35 з.п. ф-лы, 5 ил.

УСТРОЙСТВО И СПОСОБ ДЛЯ ИЗГОТОВЛЕНИЯ ЗУБЧАТОГО РЕМНЯ С ПОПЕРЕЧНЫМ ПОЗИЦИОНИРУЮЩИМ СТЕРЖНЕМ

Устройство для изготовления зубчатого ремня с поперечным позиционирующим стержнем содержит поперечный позиционирующий стержень (1), крепежную плиту (2) для формования, поперечное позиционирующее устройство (3) для ремня с поперечным стержнем, продольное позиционирующее устройство (4) для ремня с поперечным стержнем и резиновый элемент (5). К крепежной плите (2) для формования прикреплено поперечное позиционирующее устройство (3) для ремня с поперечным стержнем и/или продольное позиционирующее устройство (4) для ремня с поперечным стержнем, причем продольное позиционирующее устройство (4) для ремня с поперечным стержнем расположено с одной стороны или с двух сторон крепежной плиты (2) для формования, при этом продольное позиционирующее устройство (4) для ремня с поперечным стержнем обращено к внутренней стороне крепежной плиты (2) для формования и совместно с поперечным позиционирующим устройством (3) для ремня с поперечным стержнем образует полость (6) для формирования ремня с поперечным ...

УСТРОЙСТВО ДЛЯ ИЗГОТОВЛЕНИЯ ПРИВОДНЫХ РЕМНЕЙ ИЗ АРМИРОВАННЫХ ВУЛКАНИЗИРОВАННЫХ ЗАГОТОВОК

Использование: изготовление приводных ремней из армированных вулканизированных заготовок. Сущность изобретения: устройство снабжено узлом улавливания стружки и узлом для фиксации боковой части ремня. Натяжной узел выполнен в виде установленных с возможностью взаимного перемещения двух валиков. Шлифовальный инструмент выполнен в виде полого цилиндрического неподвижного корпуса. На корпусе установлен приводной полый цилиндрический корпус со шлифующей частью. Полость неподвижного корпуса связана с источником подачи охлаждающей жидкости и сообщается с полостью приводного корпуса. Последняя полость связана с отводом охлаждающей жидкости. 3 ил.

ПРИВОДНОЙ РЕМЕНЬ

... 1. Ремень, содержащий: тело, содержащее эластомерный материал и имеющее прочностный слой, проходящий в продольном направлении; причем тело имеет область сцепления со шкивом, имеющую профиль, область сцепления со шкивом содержит нетканый материал, взаимно смешанный с эластомерным материалом; и эластомерный материал дополнительно содержит наполнение волокном. 2. Ремень по п.1, в котором область сцепления со шкивом имеет толщину от 0,025 до 3,0 мм. 3. Ремень по п.2, в котором нетканый материал содержит комбинацию целлюлозы из хвойной древесины и целлюлозы из лиственной древесины. 4. Ремень по п.3, в котором целлюлоза из хвойной древесины составляет от 0 до 50% нетканого материала. 5. Ремень по п.4, в котором целлюлоза из хвойной древесины содержит хлопок. 6. Ремень по п.2, в котором нетканый материал содержит комбинацию целлюлозы из хвойной древесины и синтетического материала. 7. Ремень по п.6, в котором синтетический материал содержит найлон. 8. Ремень по п.7, в котором синтетический материал ...

СПОСОБ СНИЖЕНИЯ УГЛОВОЙ ВИБРАЦИИ ПРИВОДА РАСПРЕДЕЛИТЕЛЬНОГО ВАЛА, ИСПОЛЬЗУЮЩИЙ ПРИВОДНОЙ РЕМЕНЬ, УПРОЧНЕННЫЙ УГОЛЬНЫМИ ВОЛОКНАМИ

... 1. Способ снижения угловой вибрации распределительного вала относительно коленчатого вала в двигателе внутреннего сгорания, в котором распределительный вал приводится в движение зубчатым ремнем, содержащим часть тела ремня из вулканизированного эластомера и заключенный в нее натяжной элемент, выполненный из встроенного корда в виде винтовой спирали, композицию кордной пропитки, содержащую эластомерный латекс, покрывающий, по меньшей мере, часть указанного корда, отличающийся тем, что согласно способу a. выбирают для указанного корда по меньшей мере одну нить, содержащую углеволокно; b. вводят в состав указанной композиции кордной пропитки продукт резорцинол-формальдегидной реакции; с. выбирают модуль упругости указанной композиции кордной пропитки так, чтобы при температуре 20°С он был в диапазоне приблизительно от 1, 0·107 до 5,0·108 дин/см2, а при температуре 100°С в диапазоне приблизительно от 5,0·106 до 4,0·108 дин/см2; d. наносят указанную композицию кордной пропитки на корд для образования ...

СИСТЕМА И СПОСОБ ИЗГОТОВЛЕНИЯ РАЗОМКНУТОГО ТЕРМОПЛАСТИЧНОГО РЕМНЯ

Предложены система и способ изготовления разомкнутого, упрочненного, многослойного ремня. Способ включает в себя зацепление участка профильного слоя на вращающейся цилиндрической оправке с помощью зацепляющего ролика, расцепление с помощью приемного ролика, накладывание и прикрепление кордов к профильному слою с желательным интервалом между кордами. Корд может быть прикреплен посредством плавления поверхности профильного слоя с помощью нагретого скребка и/или посредством нагретого корда. Затем корд покрывается материалом верхнего слоя в этапе ламинирования, включающем в себя нагревание с возможностью плавления, по меньшей мере, участка верхнего слоя и его прессование с возможностью наплавления к упрочненному профильному слою. Ламинирование может быть выполнено дальше по ходу или непосредственно на оправке. Изобретение направлено на повышение физико-механических свойств изделий. 4 н. и 25 з.п. ф-лы, 8 ил.

ПОЛИУРЕТАНОВЫЙ ПРИВОДНОЙ РЕМЕНЬ

... 1. Приводной ремень, включающий в себя основную часть ремня из эластомерного материала, растянутое усиление, расположенное в указанной основной части, и контактирующую со шкивом часть, неотделимую от указанной основной части, причем указанный эластомерный материал включает продукт взаимодействия: ! (А) композиции на основе полиизоцианатного форполимера, полученной взаимодействием ! (i) диизоцианата, выбираемого из группы, состоящей из ! (a) пара-фенилендиизоцианата, ! (b) 2,6-толуолдиизоцианата и ! (c) циклоалифатических диизоцианатов с транс или транс, трансгеометрической структурой; ! (ii) полиола, по существу, не содержащего фрагменты, окисляемые при менее чем приблизительно 150°С, и выбираемого из группы, состоящей из ! (a) поликарбонатных полиолов, ! (b) полиолов сложных полиэфиров и ! (c) смесей указанных поликарбонатных полиолов и указанных полиолов сложных полиэфиров; и ! (iii) триольного сшивающего агента, выбираемого из указанных полиолов; и добавление туда ! (iv) пластификатора ...

Устройство для сборки бесконечных резинотросовых лент

Изобретение относится к изготовлению резиновых технических изделий и может быть использовано для изготовления приводных кордшпуровых ремней, в частности зубчатых. Цель изобретения - расширение технологических возможностей устройства за счет обеспечения сборки зубчатых резинотросовых лент. Для этого устройство снабжено бесконечной втулочно-роликовой цепью 19 и обоймой 12. Цепь 19 огибает валки, которые выполнены в виде звездочек. Обойма 12 установлена на каретке 11 с возможностью вращения относительно параллельной валу 2 приводного валка 7 оси. Нитеводитель 18 смонтирован в обойме 12 с эксцентриситетом и расположен параллельно ее образующей. Во время сборки ленты нитеводитель 18, совершая планетарное движение, последовательно обматывает кордшпуром 27 втулки. 5 ил.

Устройство для сборки резинотросовых лент

Изобретение относится к изготовлению резиновых технических изделий и может быть использовано для изготовления армированных резиновых лент, используемых в качестве тяговых органов конвейеров.Цель изобретения - расширение эксплуатационных возможностей устройства и повышение качества лент. Для этого параллельно контуру цепи 4 установлена фигурная направляющая 9. Параллельно обойме 12 установлены аналогичные поворотные обоймы 16 с эксцентрично расположенными нитеводителями 13. Обоймы 12 и 16 кинематически связаны между собой и приводным валом приводной звездочки 2. Пальцы 6 смонтированы во втулках цепи 4 с возможностью аксиального перемещения и подпружинены относительно втулок цепи 4. На одних концах пальцев 6 имеются каретки 10 для взаимодействия с направляющей 9. Устройство обеспечивает одновременную навивку нескольких тросов и возможность изготовления лент конечной длины. 5 ил. СО с ...

Устройство для изготовления бесконечных слоистых изделий

MOLD FOR MAKING ENDLESS ELASTOMERIC ARTICLES

DEVICE FOR ASSEMBLY OF ENDLESS CABLE-REINFORCED BELT

DEVICE FOR ASSEMBLY OF ENDLESS CABLE-REINFORCED BELTS

Форма для изготовления бесконечных зубчатых ремней

Изобретение относится к производству резиновых технических изделий и предназначено для изготовления бесконечных зубчатых ремней. Цель изобретения - облегчение обслуживания формы. Для этого радиально подвижный элемент 11 средства для фиксации обкладочной ткани выполнен в виде установленных в кольцевом зазоре между основанием 4 и кольцевым элементом 12 кулачков. Кулачки связаны между собой в окружном направлении посредством пружин и выполнены в форме части полого цилиндра. Каждый кулачок имеет коническую внутреннюю поверхность 16 для взаимодействия с конической боковой поверхностью 5 основания 4. При аксиальном перемещении основания 4 вдоль сменной цапфы 2 кулачки сводятся к центру, образуя с элементом 12 кольцевой зазор 21 В зазор вставляется край обкладочной ткани 22. При разведении от центра кулачки зажимают ткань 22, фиксируя ее от смеще- 4 ил. r/-/ч ния вдоль корпуса 1. п «а.ц (Л С 2mrft r/-/ч ния вдо п «а.

Устройство для сборки резинотросовых лент

Устройство для сборки резинотросовых лент

Изобретение относится к изготовлению резиновых технических изделий и может быть использовано для изготовления приводных кордшнуровых ремней , в частности зубчатых. Цель изобретения - повышение качества лент за счет предотвращения оголения тросов на краевых участках отрезанных заготовок . Для этого шпулярник 4 с нитеводителем 5 смонтированы на каретке 3 посредством ползуна 6, Ползун 6 установлен с возможностью перемещения относительно каретки в параллельном оси сборочного барабана направлении. Ползун снабжен механизмом прерывистого движения. Последний имеет ходовой винт 8 и кинематически связанный с ним через коробку W передач мальтийский крест 11. Водило 12 последнего посредством дополнительной коробки 13 передач связано с шестерней 15. На станине 2 устройства закреплена,зубчатая рейка 16, находящаяся в зацеплении с шестерней 15. Во время фазы выстоя мальтийского креста 11 ползун перемещается вместе с кареткой 3 и шаг намотки будет определяться скоростью перемещения каретки относитель- ...

Способ изготовления зубчатых клиновых ремней

Изобретение относится к производству резинотехнических изделий и может быть использовано при производстве зубчатых клиновых ремней без обертки боковых граней. Цель изобретения - повышение качества ремней и увеличение производительности процесса их изготовления. Зубчатую часть ремней собирают и формуют в виде отдельных кольцевых заготовок с трапецеидальным поперечным сечением на многоручьевом барабане. Барабан имеет набор поочередно установленных колец для образования зубчатой части кольцевых заготовок и профильных дисков для образования боковых граней кольцевых заготовок и ремней. После сборки и формования кольцевых заготовок вместо профильных дисков для образования боковых граней кольцевых заготовок устанавI ливают имеющие больший наружный профильные диски для образования (Л боковых ремней, а кольцевые заготовкиостаются на своих кольцах. Затем на с кольцевых заготовках собирают наружную часть ремней и вулканизуют. 7 ил. tsd со 00 4 ...

Устройство для сборки резинотросовых лент

Изобретение относится к области изготовления резиновых технических изделий и может быть использовано для изготовления приводных кордшнуровых ремней, в частности , зубчатых. Цель изобретения - расширение технологических возможностей устройства при повышении качества собираемых лент. Для этого на обращенных к обойме торцах приводного и натяжного валков с возможностью совместного вращения с ними и аксиального перемещения относительно них смонтированы диски. Диски имеют на наружной цилиндрической поверхности чередующиеся выступы и впадины для прохода стержней и поддержания поперечной арматуры резинотросовой ленты во время сборки Количество впадин дисков равно количеству впадин соответствующих им звездочек . Устройство позволяет производить сборку достаточно широких резинотросо- вых лент. 4 ил.

Устройство для изготовления кольцевых изделий

Дорн для изготовления полых изделий

Изобретение относится к изготовлению полых изделий и может быть использовано для изготовления плоскозубчатых ремней. Цель изобретения - облегчение обслуживания дорна за счет упрощения процесса точного взаимного расположения элементов корпуса и разборки дорна. Сущность: дорн снабжен средством для взаимного центрирования элементов корпуса, выполненным в виде призонного болта, установленного по центру корпуса и контактирующего центральной цилиндрической частью с обоими элементами, причем в первом из элементов выполнено коническое гнездо, а во втором - резьбовое отверстие. Средство для разборки корпуса выполнено в виде болта, устанавливаемого по центру крпуса всесто призонного болта и контактирующего с дополнительным резьбовым отверстием, которое выполнено в первом элементе между основанием корпуса и коническим гнездом. 1 з.п. ф-лы, 2 ил.

Устройство для сборки бесконечных резинотросовых лент

Устройство для формования порошкообразного материала

Antistatic transmission belt - with electrically conducting elastomer layers contg. reinforcements and touching tapered sides of conducting pulleys

An endless transmission belt with anti-static properties has tension and compression zones and an intermediate load-bearing zone. At least one of these zones and/or an additional zone is made of electrically conducting elastomer and extends continuously over the whole length and width of the belt, the outer edges of this zone face the pulleys surfaces. The conducting layers are pref. made up of 100 pts. rubber, 20-45 pts. carbon, and 15-25 pts. SiO2 plus smaller quantities of additives including e.g. phenolic resin. Its anti-static properties enable it to be used in e.g. explosive dusts and other dangerous environments.

Riemen/Riemenscheibenkombination und Herstellungsverfahren

Process for profiling rubber bodies in sheet form

The invention is based on a process in which the rubber bodies in sheet form are machined and, during this machining, strips are cut out to obtain depressions which are open at the edge. To be able also to achieve at the edge of the sheet a dimensionally accurate serration, the invention provides that, before cutting the profile, an incision or slit is made in the proximity of the edge of the area to be machined to a depth corresponding to the depth of the profile, and furthermore, after profiling, the edge determined by the incision is detached from the rubber body.

Verfahren und Vorrichtung zur Herstellung eines Zahnriemens

ZWEISEITIG VERZAHNTER TREIBRIEMEN.

Method e.g. for manufacturing belt with reinforcement, involves providing belt and which is made from plastic or a similar elastic material and which is reinforced and affixed during manufacturing

The method involves providing a belt (11) and which is made from plastic or a similar elastic material and which is reinforced (12) and affixed during manufacturing (25). An inlet is arranged (26) with the reinforcement in the tool and or before several mass flows (21, 22) from plastic or plastic-like material is created. An independent claim is included for a device.

Slicing toothed belts from shaped, reinforced elastomeric tube includes artificial aging of cut surface by local application of heat

Toothed belts (1) of reinforced elastomeric material are made by cutting slices of the required width from a tube with the correct wall shape. The edges (7) of the cut surfaces (5) are artificially aged by local application of heat, e.g. by using heated cutters, using cutting disks without coolant or using contact or radiant heaters. Heating can be followed by cooling with air or water.

Zahnriemen aus Kunststoff und Verfahren und Vorrichtung zum Herstellen eines Zahnriemens

Reinforced driving belt made from thermoplastics - has fully embedded textile layer in addition to cord and does not age harden

A reinforced elastomer driving belt comprises >=1 textile layers which are virtually completely embedded in the polyester of the belt and extend across its entire width so that a fully bonded reinforced object results. The textile layers pref. form part of the tension portion of the belt. The belt may be made by wrapping then textile and reinforcing cord around a central mould, then inserting this into an outer mould and injecting the plastics either by injection moulding or by centrifuging.

Verfahren zur Herstellung eines Antriebsriemens

Verfahren zur Herstellung eines endlosen Antriebsriemens aus elastomerem Material mit innenliegenden und in Längsrichtung des Riemens verlaufenden Festigkeitsträgern bzw. Corden, wobei ein schlauchförmiger Antriebsriemenrohling schichtweise aus einzelnen auf einer rotierenden Trommel (Aufbautrommel) aufgebrachten Material- oder Mischungslagen aufgebaut wird und die Festigkeitsträger unter einem Winkel zur Trommelachse auf oder zwischen einzelne Material- oder Mischungslagen aufgespult werden, wobei nach Fertigstellung des Aufbaus und nach dessen Vulkanisation der schlauchförmige Rohling in einzelne Antriebsriemen geschnitten wird, wobei mehrere einzelne, parallel auf die Trommel auflaufende Festigkeitsträger so aufgespult werden, dass nach dem Spulen alle Festigkeitsträger schraubenförmig bzw. wendelförmig mit gleicher Steigung nebeneinanderliegend auf oder in den jeweiligen auf der Trommel befindlichen schlauchförmigen Materiallagen angeordnet sind.

Verfahren zur Herstellung eines doppelseitigen Riemenzusammenbaus

Aramid-Faserschnur für Treibriemen und Verfahren zur Herstellung derselben

PRESTRETCHING & TENSIONING FLEXIBLE DRIVE MEMBERS

Belt construction and method of making the same

A belt construction and method of making the same are provided. The belt construction (10) comprises: a tensile member (13) intermediate the opposed sides (11, 12) of the belt construction; a plurality of teeth (14) defining one (12) of the opposed sides of the belt construction and being mainly formed of a first polymeric material (16) that has reinforcing fibers (17) therein, each tooth (14) having opposed sides (18, 19) that are disposed in spaced relation to adjacent sides of adjacent teeth, the belt construction having a land area (20) between adjacent teeth; and a backing member (15) defining the other (11) of the opposed sides of the belt construction, the backing member being mainly formed from a second polymeric material (21) that is initially separate from the material (16) of the teeth and is substantially free of fibers therein, the material of the backing member (15) having a surface (22) that joins with a surface (23) of each tooth (14), whereby the joining surfaces define ...

ENDLESS POWER TRANSMISSION BELT CONSTRUCTION AND METHOD OF MAKING SAME

Endless power transmission belt constructions having power transmitting contact faces, and methods of making the same. The belt constructions (20, 120) comprise an axial tensioning unit (21, 121), a plurality of lateral stiffening units (22, 122) which are carried by the tensioning unit, and friction material (29, 129) carried by at least one of the tensioning unit and stiffening units. The tensioning unit (21, 121) and the stiffening units (22, 122) are formed of a polymeric material that provides an axial and lateral stiffness in excess of that normally provided by polymeric friction material. In one inventive proposal, the friction material (29) is located only at the contact faces of the belt construction, and thereby defines only the contact surfaces (23, 26, 33) of the belt construction, while the tensioning and stiffening units define all other exposed areas of the belt construction. in another embodiment, the friction material (129) has a first portion thereof disposed on the units ...

Toothed Belt

Endless power transmission V-belt construction and method of making the same

An endless power transmission V-belt construction and method of making the same are provided, the belt construction being formed mainly of polymeric material and having rounded top and bottom teeth respectively extending along the length of the top and bottom surfaces of the belt construction, the belt construction comprising a tension section having the top surface, a compression section having the bottom surface, and a load-carrying section disposed intermediate the tension section and the compression section. The quotient of the bottom to top tooth pitch ratio of the belt construction is approximately 1.40 and the quotient of the bottom to top tooth depth ratio thereof is approximately 1.77 while the quotient of the belt thickness to flex thickness ratio thereof is approximately 3.98.

DIMENTSIONALLY STABLE SYNTHETIC CONVEYOR BELT

Improvements in or relating to moulds for manufacturing driving belts

... 817,917. Moulding belting. CONTINENTAL GUMMI WERKE A.G. March 18, 1957 [April 5, 1956], No..8836/57. Class 87(2). [Also in Group XXIV] A mould for manufacturing a flexible toothed driving belt from elastic artificial material, e.g. polyurethane, comprises an outer ring 1 and a mandrel 3, toothed on its peripheral surface, which are arranged concentrically and spaced so as to form a mould cavity, the projecting portions 9 of the mandrel which form the tooth spaces of the belt having elevations 10 for supporting reinforcing insertions 4, e.g. of steel wire. These elevations b are substantially narrower than the projecting portions B. Each projecting portion 9 may carry two spaced elevations 10, or a single elevation as shown. The elevations may be rounded on their surfaces facing the reinforcing insertions, or may be of substantially trapezoidal crosssection or may have thickened heads and knoblike cross-sections. The elevations may have groove-like notches which run in the peripheral directionof ...

Method and apparatus for manufacturing a belt

... 866,684. Moulding rubber belts. GOODYEAR TIRE & RUBBER CO. Sept. 22, 1958 [March 24, 1958], No. 30165/58. Class 87(2). [Also in Group XXIV] In the manufacture of an endless toothed driving belt comprising tension cords 16, Fig. 14, of wire or fabric and a toothed section of rubber or like vulcanisable material 7 covered with fabric 6, a flat composite sheet of unvulcanised rubber or the like and impregnated stretchable fabric is placed over a flat or cylindrical toothed matrix 1, Fig. 5, and subjected to warmth and pressure which causes the rubber to flow, still vulcanised, into the grooves between the matrix teeth, thereby stretching the fabric to line the grooves. The rubber and fabric layers 7, 6 may or may not be bonded together before pressure is applied. Pressure is applied to a flat matrix through a press platen, with the interposition of a lubricant or a sheet of material, such as polymerised tetrafluoroethylene, to which the rubber will not adhere. The matrix is preferably sprayed ...

ZAHNRIEMEN

POWER TRANSMISSION VOLUME AND PROCEDURE FOR ITS PRODUCTION

VULKANISIERFORM ZUR HERSTELLUNG VON RINGFOERMIGEN POLYMEREN ERZEUGNISSEN, INSBESONDERE VON ZAHNRIEMEN

DOUBLETOOTHED DRIVE BELT

VERSCHLEISSFESTE BELTS AND PROCEDURES FOR THEIR PRODUCTION

TOOTHED BELT AND MANUFACTURING PROCESS FOR IT

FLEXIBLE CONVEYOR AND PROCEDURE FOR ITS PRODUCTION

Drive belt

Procedure for the production of 2-alkoxysubstituierten 4-Sulfanilamido-chinazolinen

DRIVE BELT

Method to cure endless track belts

A belt comprising an embedded two-component cord and method for molded power transmission belts

A belt having a tensile cord (12) embedded in the belt, extending in a longitudinal direction and made up of two components: a tensile component (31) and a sacrificed component (32'). The sacrificed component may be broken into a plurality of discontinuous segments (32'). The tensile component provides most of the reinforcement of the belt. The sacrificial component of the precursor cord protects the tensile component from excessive stretching during cord treating and winding, but breaks, melts, or yields during mandrel expansion during the belt molding process, thus preserving the stretchability of the tensile component.

Wear resistant belts, and a process for their manufacture

Method and apparatus for making an endless rubber tractor track

Toothed belt construction formed mainly of thermoplastic material and method of making the same

TOOTHED BELT CONSTRUCTION, PREFORMED FABRIC LINER THEREFOR AND METHODS OF MAKING THE SAME

Molding system for rubber tractor tracks

METHOD AND APPARATUS FOR THE PRODUCTION OF AN ENDLESS REINFORCED TOOTHED BELT

FLEXIBLE LINK BELT, AND METHOD AND APPARATUS FOR MAKING SUCH BELTS

WEAR RESISTANT BELTS, AND A PROCESS FOR THEIR MANUFACTURE

Endless power transmission belts and processes for their manufacture, having power transmitting surfaces comprising a wear resistant composite, which belts exhibit improved abrasion- or wear resistance, reduced noise, reduced frictional heat generation, and improved dimensional stability compared to known belt constructions, as well as processes for manufacturing same. More particularly, an endless toothed belt having an abrasion- and noise resistant cover element (20), which comprises at least one friction-modifying constituent and at least one binder constituent.

TRANSVERSE REINFORCED CVT BELT

The invention comprises a cog type belt having a plurality of transverse teeth (5) on an inner surface. The belt comprises an outer extensible elastomeric layer (8), an inner compression layer and a tensile member (9). Each tooth further comprises a non-metallic or plastic transverse member, pillar or rod (10) that extends across the width of each tooth (5). The opposing outer surfaces of each transverse member are inclined to each other and each end approximately equates to an outer surface of the belt body elastomeric. A compressive load between the sheaves is carried by the rod and the sidewall in proportion to the modulus of each component. The transverse members have pegs or legs (12, 14) that allow proper spatial orientation of each transverse member in each tooth during the fabrication process, thus assuring proper operating characteristics, including proper alignment within a pulley.

PROFILED TIP POWER TRANSMISSION BELT

... ²²²A power transmission belt comprising a belt body having a length and defining ²at least one elongate rib (18), the rib having an exposed surface that engages ²a cooperating pulley, the exposed rib surface having at least one longitudinal ²groove (20) formed therein which reduces transverse modulus of the surfaces ²engaging the cooperating pulley and thereby reduces noise accompanying running ²of the belt.² ...

METHOD AND APPARATUS FOR MAKING POWER TRANSMISSION BELTING

METHOD AND APPARATUS FOR MAKING POWER TRANSMISSION BELTING The method involves assembling an uncured belt body having a stable length tensile section adjacent an inwardly disposed mandrel made of a metal having a high coefficient of thermal expansion, heating the mandrel whereby its thermal properties are utilized to maintain the tensile member in tension, also pressurizing the belt body in a direction toward the mandrel thus sandwiching it, and while maintaining the tensile member in tension, curing the belt body from which one or more endless power transmission belts may be formed. The apparatus utilizes the mandrel in a substantially ring or cylindrical shape about which is disposed inwardly pressure supply means, an annular cavity disposed between the mandrel and pressure means, and means for supplying heat to the mandrel to initiate its thermal growth during curing of the belting.

ENDLESS POWER TRANSMISSION BELT AND METHOD OF MAKING SAME

TRANSMISSION BELTS

A toothed power transmission belt comprising a body, transversely extending teeth positioned along at least one face of the body, and an inextensible tensile member embedded in the body, the material of the body comprising a blend of an epihalohydrin having a nominal Mooney viscosity of not more than 50 and an epihalohydrin having a nominal Mooney viscosity of not less than 50.

ELASTOMER-FREE FABRIC SURFACE FOR POWER TRANSMISSION BELT TOOTH FACING AND METHOD OF MAKING

BLOWING CONDUIT FOR A TURBINE ENGINE

Conduite de soufflante pour une turbomachine, comprenant deux parois cylindriques coaxiales (60, 68), respectivement interne et externe, la paroi interne (68) étant constituée d'une ossature (70) sur laquelle sont fixés de manière amovible des panneaux (72), et la paroi externe (60) étant constituée d'une structure unitaire (62) de support comportant des ouvertures (64) fermées par des panneaux amovibles (66), les ouvertures (64) de la paroi externe ayant des dimensions permettant le passage des panneaux (72) de la paroi interne et le montage et le démontage de ces panneaux sur l'ossature (70) de la paroi interne.

POWER TRANSMISSION BELT AND METHOD

The invention comprises a belt having a plied construction overlying tensile cords. An elastomeric layer (10) overlies an overcord (11) which overlies yet another elastomeric layer (12) which in turn overlies a tensile cord (13). The overcord layer supports the tensile cords during molding thereby stabilizing a cordline centerline position with respect to a rib apex. This construction significantly reduces a distance from a tensile cord centerline to a rib apex and rib/pulley interface in a multi-ribbed belt, thereby significantly increasing belt life.

CRAWLER MOLDING METHOD

A seamless crawler forming method capable of reducing production steps, burying spiral reinforced cord, providing thereto a strength characteristic uniformly around the periphery, withstanding a high speed traveling, and pressurizing an outer mold uniformly and securely, wherein a crawler (10) is integrally molded and vulcanized between an outer mold (12) and an inner mold (22) of endless ring shape, characterized by comprising the steps of, after molding the components of the crawler (10) around the periphery of the axially dividable inner mold (22), installing the outer mold (12) divided in circumferential direction and slidable in radial direction on the outside of the components of the crawler (10), and pressurizing the outer mold (12) in radial inner direction so as to vulcanize the components of the crawler (10).

HELICAL BELT ASSEMBLY, METHOD OF USE, AND KIT THEREFORE

Disclosed herein is an assembly, method of assembling and kit for assembling an assembled helical belt that is mounted within a mounting space defined by a continuous mechanical constraint of a device wherein the assembled helical belt includes a flexible helical belt having two distinct ends, such that the assembled, compressed, flexible helical belt forms a single, continuous, unending drive belt that passes through the mounting space.

POWER TRANSMISSION BELT WITH TUBULAR KNIT OVERCORD

A power transmission belt (11) is disclosed in which the exterior of the overcord section (28) is generally flat in contour and beard an outer seamless tubular knit textile material (15) adhered to an adjacent rubber layer material (17) interposed between the exterior belt back surface and a strain- resisting tensile section (20). The belt is adapted to be run against backside idlers or tensioners with minimized noise generation. A simplified process including use of a tubular knit stretched over and applied to the building drum is disclosed, thereby eliminating convention calendaring and Bannering operations.

ADJUSTLESS V-BELT AND METHOD OF MANUFACTURE

A BELT COMPRISING AN EMBEDDED TWO-COMPONENT CORD AND METHOD FOR MOLDED POWER TRANSMISSION BELTS

A belt having a tensile cord (12) embedded in the belt, extending in a longitudinal direction and made up of two components: a tensile component (31) and a sacrificed component (32'). The sacrificed component may be broken into a plurality of discontinuous segments (32'). The tensile component provides most of the reinforcement of the belt. The sacrificial component of the precursor cord protects the tensile component from excessive stretching during cord treating and winding, but breaks, melts, or yields during mandrel expansion during the belt molding process, thus preserving the stretchability of the tensile component.

REINFORCED POLYMERIC COMPONENT AND METHOD OF MANUFACTURE

TOOTHED BELT OF ELASTOMERIC MATERIAL FOR REVERSIBLE TOOTHED BELT DRIVES AND METHOD OF MAKING SAME

A toothed belt where the crown surfaces of its teeth are to be disposed on the bases of gear wheel grooves is provided. In order to achieve a dampened, low-noise running-up of the toothed belt upon the gear wheel, as well as to achieve a freeof-play filling of the gear wheel grooves via the belt teeth in the direction of rotation as required for a reversible belt drive, embedded in the crown surface of each tooth belt is a crown piece made of a material that is elastically softer than the belt material. Viewed in the longitudinal cross-section of the belt, the crown piece extends essentially over the entire length of the crown surface of the belt tooth and protrudes from the crown surface in such a way that as the tooth runs up on the gear wheel, first the part of the curved outer side that protrudes the most strikes the base of the gear wheel groove, and subsequently this outer side is pressed flat against the groove by the belt tension. The inner side of the crown piece that is connected ...

APPARATUS AND METHOD FOR CURING ENDLESS RUBBER TRACK

A novel apparatus and a novel method for manufacturing an endless rubber track for large vehicles such as tractors or earth moving machines. A plurality of sprocket-engaging core bar inserts (60) are disposed in the inner portion or inner diameter of the endless rubber track to engage the power drive mechanism of the vehicle. Rubber tread (230, 234) is disposed on the outer portion or external diameter of the rubber track. Although the rubber track is made in segments (230, 232, 234, 236), it is completely vulcanized, and does not have discontinuous, unvulcanized regions between vulcanized segments. Rubber track is formed using at least two different mold assemblies (102, 142). In the first mold assembly, the interior and exterior portions of the rubber track are molded onto an adjacent section of the green belt (194) to form a second segment, and the second segment along with the adjacent unvulcanized first segment is vulcanized.

Verfahren zur Herstellung von Riemen aus schmelzbaren, thermoplastischen Stoffen

Giessform zur Herstellung von Riemen aus schmelzbaren, thermoplastischen Stoffen mit Verstärkungseinlagen

Procédé de fabrication d'une courroie et courroie fabriquée selon ce procédé

Procedimento di fabbricazione di cinghie dentate a doppia dentatura in gomma, stampo per l'esecuzione di tale procedimento e cinghia dentata così ottenuta

Antriebsriemen

Verfahren zur Herstellung von Sulfanilamido-Chinazolinen

Verfahren und Vorrichtung zur Herstellung von endlosen Antriebsriemen und Fördergurten

Verfahren zur Herstellung endloser Riemen aus thermoplastischem Kunststoff

Procédé de fabrication d'une courroie à entraînement positif et courroie produite suivant le procédé

FORM-STABLE CONVEYOR FROM PLASTIC.

Rubber timing- or toothed belt

An elastomeric toothed- or timing belt (20) includes a fabric (10) covering the teeth (6), tensile strands (12) and a rubber body. A plastic fleece (16) is vulcanised onto the back of the belt in the same colour as the rubber mixture and about 5/100 mm thick, which has a gas-removal function. Preferably the fleece is black and comprises polyamide. It has a structured back surface. Also claimed is the production of the belt.

Impression of toothed profile on a drive or conveyer belt with a thermoplastic cover involves impressing teeth into a heated thermoplastic cover of a belt

The toothed profile is formed directly in the thermoplastic cover(10) of a prefabricated belt(11). An Independent claim is made for a drive belt or conveyer belt produced by the process whose toothed profile forms a strip along the length and does not extend the full width of the belt.

Belt with projections at intervals

A flexible belt with regularly distributed features such as teeth is produced by injecting a polymer under pressure into the spaces between the threads of a woven band to form a succession of the features along the length of the band and on its one side, together with features connected to them but on the other side. The top tool of an injection moulding arrangement has melt feeders to bring the combined melt to a nozzle, which has a shallow annular recess round it. On the other side of the band the lower tool has a tapered circular recess of the shape of the projecting feature desired.

ПРЕСС-ФОРМА ДЛЯ ИЗГОТОВЛЕНИЯ ДВУХСТОРОННИХ ЗУБЧАТЫХ РЕМНЕЙ

Изобретение относится к технологическому оборудованию для производства резинотехнических изделий, в частности, для изготовления двухсторонних приводных зубчатых ремней. Цель изобретения - повышение надежности работы пресс-формы и качества изготавливаемых ремней. Пресс-форма для изготовления двухсторонних зубчатых ремней содержит зубчатый разъемный дорн 1 со съемными центрирующими фланцами 2, формующие сектора 3 первой группы и сектора 7 второй группы, взаимодействующие с механизмом радиального перемещения. Фиг. 1 Новым является то, что сектора 3 первой группы имеют наружные конические поверхности 4, взаимодействующие с внутренними коническими поверхностями 5 конусов 6 механизма радиального перемещения. Между секторами 3 первой группы установлены сектора 7 второй группы в форме острозаточенных клиньев с плоскими боковыми плоскостями 8. В секторах 7 выполнены наклонные отверстия 9, в которых размещены направляющие колонки 10, запрессованные в конуса 6. На наружной поверхности дорна 1 и внутренней ...

Synchronous belt and manufacturing method

The synchronous belt forming machine

Improvements with the manufactoring process of the driving belts out of rubber or plastic

Manufactoring process of belts, in particular of fusible thermoplastic synthetic matter belts

Belt and manufactoring process of belt

A method and apparatus for the production of belts and belts resulting

DRIVING BELT OF POWER.

L'invention concerne une courroie de transmission de puissance présentant une denture (3) en élastomère à base d'élastomère éthylène alpha oléfine pourvue d'un revêtement externe tissé ou non tissé. Elle est caractérisée en ce que la denture (3) est revêtue d'une couche barrière (4) notamment en un matériau thermoplastique et en ce que, au moins sur les flancs (8) de la denture (3), ledit revêtement externe (5) est partiellement inclus dans une partie de l'épaisseur de la couche barrière (4).

Process for manufacturing annular articles made from polymer, mould for its implementation and articles obtained by the said process

Tooth Designs for Block Transmission Belts

An inclined partial cylinder tooth shape for a block transmission belt that can be used with single tooth cones, cones with two opposite teeth, and transmission pulleys. Said inclined partial cylinder tooth shape allows for full surface to surface contact engagement between the engaging surfaces used for torque transmission in transmissions using block transmission belts, which is not achievable with currently known tooth shapes for a block transmission belt.

Toothed belt

Configuring the inside of a tooth portion 15 of a toothed belt 10 with a core rubber layer 14 and the outer periphery of the tooth portion 15 with a tooth rubber layer 12 . Also, including short fibers in the core rubber layer 14 . The tooth rubber layer 12 is formed by curing a rubber composition containing 10 parts by weight or less high-density polyethylene with 100 parts by weight of matrix rubber. The value of tan δ for the tooth rubber layer 12 at 100-120° C. is maintained at 0.100-0.120.

TOOTHED BELT AND METHOD OF MANUFACTURING THE SAME

A toothed belt has therein a core wire () including a core thread () made of aramid fiber and a filament thread () made of nylon fiber, and has belt tooth portions () and belt groove portions () alternately formed therealong. The core wire (), the belt tooth portions (), and the belt groove portions () are integrated with one another by a rubber material (). It should be noted herein that the core thread () and the filament thread () are integrally twined around each other so that the filament thread () is formed in the shape of a plurality of loops around the core thread (). The filament thread () in the shape of the loops enters tooth root portions () of the belt tooth portions () to be arranged therein. As a result, the tooth root portions () are strengthened. 19.-. (canceled)10. A toothed belt that has embedded therein a core wire including a core thread and a filament thread and has belt tooth portions and belt groove portions alternately formed therealong ,the core thread and the filament thread are twined around each other so that the filament thread is formed in a shape of a plurality of loops around the core thread, andthe filament thread in the shape of the loops enters tooth root portions of the belt tooth portions so that the core wire, the belt tooth portions, and the belt groove portions are integrated by a belt material to strengthen the tooth root portions, and tooth tip portions are located on an inner peripheral face side of the core wire, whereinthe looped filament thread is arranged on the inner peripheral face side of the core thread in belt groove portions.11. The toothed belt according to claim 10 , wherein the filament thread is continuous along the core wire.12. The toothed belt according to claim 10 , wherein the core thread and the filament thread are adhesively joined to each other by an adhesive thread.13. The toothed belt according to claim 10 , wherein the belt material is made of rubber or polyurethane resin.14. The toothed belt ...

DRIVE BELT FOR TRANSMITTING A DRIVE MOVEMENT, AND METHOD FOR PRODUCING A DRIVE BELT

A drive belt having a belt body which is made of a flexible material and a tensile reinforcement that extends in belt axial direction and which is surrounded by said belt body in sections at least to improve the tensile strength of the body in belt longitudinal direction wherein the tensile reinforcement is a carbon cord made of a plurality of twisted carbon fibers with a plurality of cavities between the fibers which are charged with a filler material in part at least. A first portion of the carbon fiber cavities is charged with a rupture risk reducing filler of a type different from the belt body flexible material and a second portion of said cavities of the carbon fibers is filled with belt body flexible material. The carbon cord has less than 0.2 mg of belt body flexible material per one millimetercord volume. 1. A drive belt havinga body which is made of a flexible material anda tensile reinforcement which extends in a belt axial direction and is surrounded by said belt body in sections at least to improve the tensile strength of the body in belt longitudinal directionwherein the tensile reinforcement is a carbon cord consisting of a plurality of twisted carbon fibers with a plurality of cavities between said fibers which are filled with a filler material in part at least,{'b': 10', '2', '9', '9', '5', '2', '9', '9', '3', '2, 'sup': '3', 'wherein a rupture risk reducing filler () different from the flexible material for the belt body () is filled into a first portion (′) of the cavities () of said carbon fibers () and the flexible material for the belt body () is introduced into a second portion (″) of said cavities (), wherein a carbon cord () contains less than 0.2 mg flexible material for the belt body () per one millimetercord volume.'}21099. The drive belt according to claim 1 , wherein the rupture risk reducing filler () filling said first portion (′) of the cavities () comprises epoxy resin and/or isocyanate.33551095. The drive belt according to claim 1 ...

FRICTION DRIVE BELT

A friction drive belt has a pulley contact portion of a belt body, and at least the pulley contact portion is made of a rubber composition. Numerous pores are formed in a surface of the pulley contact portion of the belt body, and numerous small protrusions having an average height of 4-40 μm are formed to protrude from the surface. 1. A friction drive belt in which at least a pulley contact portion of a belt body is made of a rubber composition , whereinnumerous pores are formed in a surface of the pulley contact portion of the belt body, and numerous small protrusions having an average height of 4-40 μm are formed to protrude from the surface.2. The friction drive belt of claim 1 , whereinthe numerous pores are made of partially removed hollow particles blended into the rubber composition forming the pulley contact portion.3. The friction drive belt of claim 1 , whereinthe numerous pores are made of partially removed hollows foamed by a foaming agent blended into the rubber composition forming the pulley contact portion.4. The friction drive belt of claim 1 , whereinan average pore size of the numerous pores is 70-120 μm.5. The friction drive belt of claim 1 , whereinthe numerous small protrusions are formed by partially exposing solid particles blended into the rubber composition forming the pulley contact portion.6. The friction drive belt of claim 5 , whereinthe solid particles are made of resin particles.7. The friction drive belt of claim 6 , whereinthe solid particles are made of ultra high molecular weight polyethylene resin particles.8. The friction drive belt of claim 1 , whereina peak-to-valley distance between each of the numerous pores and each of the numerous small protrusions is 45 μm or more.9. The friction drive belt of claim 1 , whereina rubber component of the rubber composition forming the pulley contact portion is an ethylene-α-olefin elastomer.10. The friction drive belt of claim 1 , whereina short fiber is not blended into the rubber ...

Low-noise belt drive

The invention relates to electromechanical power-assisted steering for motor vehicles, having a steering gear in which a belt drive is provided for power transmission between a servomotor and a gear transmission and which comprises a toothed belt and two belt pulleys coupled by means of the toothed belt, wherein the toothed belt, transversely to its running direction, has a concave internal contour, viewed from the belt pulley, and in that corresponding belt pulleys are provided transversely to the direction of rotation with a corresponding convex external contour.

Power Transmission Belt and Method of Making Same

A method of making a belt including the steps of: (a) helically wrapping a fabric strip of predetermined width on a mandrel at a first helix angle; (b) helically winding a tensile cord onto the mandrel over the fabric at a second helix angle less than the first helix angle; (c) wrapping a sheet or a strip of elastomer material around the mandrel over the tensile cord; and (d) curing the elastomer material under pressure to form a belt sleeve. The mandrel may be grooved for making toothed belts. The fabric strip may be preformed. A resulting toothed belt has a fabric seam spanning several teeth and having a helix angle. The seam may be joined. 1. A toothed endless belt comprising:an elastomeric belt body with a plurality of teeth defining a toothed surface of said belt; anda helically wrapped fabric strip covering the toothed surface with adjacent edges of the fabric strip overlapping one another one-half the width of said fabric strip and describing a helical seam;with said seam extending over more than two teeth.2. The belt of wherein the fabric strip has a width equal to or greater than the width of the belt.3. The belt of wherein said seam extends over more than four teeth.4. The belt of wherein said seam extends at least one fourth of the circumference of the belt and no more than once around the circumference of the belt.5. The belt of wherein said seam defines a first helix angle relative to a side edge of the belt; and further comprising:a helically wrapped tensile cord embedded in the belt body with the tensile cord describing a second helix angle relative to the side edge of the belt;with the first helix angle greater than the second helix angle.6. The belt of wherein the cord centers are collinear when viewed in a belt section.7. The belt of wherein the first helix angle is greater than the second helix angle by a factor of more than two.8. The belt of wherein the first helix angle is in the range of about 1.5 degrees to about 20 degrees.9. The belt of ...

TOOTHED BELT

Provided is a toothed belt that has satisfactory durability even under high-temperature and high-load conditions or within an oil or water environment. The toothed belt comprises a belt body including a tooth rubber portion and a backing rubber portion . A surface of the tooth rubber portion is covered with a facing fabric . The facing fabric is subjected to RFL treatment, and has an outer surface covered with a hardened material of a first epoxy resin. The softening point of the hardened material of the first epoxy resin is, for example, 110° C. or higher. The epoxy equivalent of the first epoxy resin is, for example, 100 to 1500 g/eq. Alternatively, the facing fabric is subjected to impregnation treatment with a treatment agent including a second epoxy resin, a hardener for hardening the second epoxy resin, and a rubber component. 1. A toothed belt comprising a belt body that includes a tooth portion and a tooth bottom portion alternately provided on one surface side thereof along the longitudinal direction , and a facing fabric which is provided on the one surface of the belt body and has an outer surface covered with a hardened material of a first epoxy resin.2. The toothed belt according to claim 1 , wherein the softening point of the hardened material of the first epoxy resin is 110° C. or higher.3. The toothed belt according to claim 1 , wherein the epoxy equivalent of the first epoxy resin is 100 to 1 claim 1 ,500 g/eq.4. The toothed belt according to claim 1 , wherein the hardened material of the first epoxy resin is applied to the facing fabric that is subjected to RFL treatment.5. The toothed belt according to claim 1 , wherein the first epoxy resin is hardened by a first hardener.6. The toothed belt according to claim 5 , wherein the first hardener includes at least one hardener selected from the group consisting of amine-based hardener claim 5 , acid anhydride-based hardener claim 5 , phenol novolak-based hardener claim 5 , imidazole-based hardener ...

Friction Transmission Belt and Method for Producing Same

A frictional power transmission belt includes a tension layer forming a belt back surface, a compression rubber layer to be in contact with a pulley and frictionally engaged with the pulley, and a tension member embedded between the tension layer and the compression rubber layer along a belt length direction. The compression rubber layer has a surface to be in contact with the pulley. At least a part of the surface is coated with a fiber layer via a fiber/resin mixture layer. The fiber/resin mixture layer contains a resin component and heat-resistant fibers having a softening point or a melting point higher than a vulcanization temperature of a rubber forming the compression rubber layer. The fiber layer contains hydrophilic heat-resistant fibers having a softening point or a melting point higher than the vulcanization temperature and does not contain a resin component. 1. A frictional power transmission belt comprising a tension layer forming a belt back surface , a compression rubber layer formed on one surface of the tension layer and to be in contact with a pulley and frictionally engage with the pulley , and a tension member embedded between the tension layer and the compression rubber layer along a belt length direction ,wherein the compression rubber layer has a surface to be in contact with the pulley,at least a part of the surface is coated with a fiber layer via a fiber/resin mixture layer,the fiber/resin mixture layer contains a resin component and heat-resistant fibers having a softening point or a melting point higher than a vulcanization temperature of a rubber forming the compression rubber layer, andthe fiber layer contains hydrophilic heat-resistant fibers having a softening point or a melting point higher than the vulcanization temperature and does not contain a resin component.2. The frictional power transmission belt according to claim 1 , wherein the heat-resistant fibers include fibers embedded so as to extend from the fiber/resin mixture layer ...

POWER TRANSMISSION BELT

A power transmission belt and a method for manufacturing said belt. The belt includes: a backing layer made of a material with elastomeric behaviour; a ventral layer made of a material with elastomeric behaviour; a mechanical reinforcement means inserted between the backing layer and the ventral layer comprising a film with thermoplastic transformation surrounding the mechanical reinforcement means, said film comprising at least: a first component physically and/or chemically bonded to at least one component of the backing layer; a second component physically and/or chemically bonded to at least one component of the mechanical reinforcement means; and a third component physically and/or chemically bonded to at least one component of the ventral layer. The method for manufacturing said belt may advantageously use an anti-sticking means. 1. A power transmission belt comprising:a backing layer made in a material with an elastomeric behavior;a ventral layer made in a material with an elastomeric behavior;a mechanical reinforcement means interposed between the backing layer and the ventral layer;a film with thermoplastic transformation surrounding the mechanical reinforcement means, said film comprising at least:one first component physically and/or chemically bound with at least one component of the backing layer;one second component physically and/or chemically bound with at least one component of the mechanical reinforcement means; andone third component physically and/or chemically bound with at least one component of the ventral layer.2. The belt according to claim 1 , wherein the backing layer is made in a material with elastomeric behavior based on alpha-olefin-ethylene or based on an olefin TPV and the first component of the film with thermoplastic transformation is selected from the group consisting of olefin homopolymers claim 1 , olefin copolymers claim 1 , polyethylene claim 1 , LDPE and HDPE.3. The belt according to claim 1 , wherein the backing layer is ...

Low Modulus Belt Utilizing Tensile Member and Belt Carcass

An endless belt is provided includes a compression section, a tension section, and a cover layer, together defining a longitudinal direction of the endless belt. The tension section has a plurality of tensile members extending at an angle of 0° to 45° relative to the longitudinal direction of the endless belt, and the tensile members are orientated a zig-zag pattern. In some cases, the plurality of tensile members extend along the longitudinal direction of the belt at an angle of 0°. Each of the plurality of tensile members may be continuous or discontinuous. The tensile members may be laid in a plane substantially parallel with the longitudinal direction of the belt. The tension section may include two sets of a plurality of tensile members, where the first set tensile members are orientated in a first zig-zag pattern and the second set of tensile members are orientated in a second zig-zag pattern. 1. An endless belt comprising a compression section , a tension section , and a cover layer , which define a longitudinal direction , wherein the tension section comprises a plurality of tensile members extending at an angle of 0° to 45° relative to the longitudinal direction of the endless belt , and wherein the tensile members are orientated a zig-zag pattern.2. The endless belt of wherein the plurality of tensile members are extended along the longitudinal direction of the endless belt at an angle of 0°.3. The endless belt of wherein each of the plurality of tensile members is continuous.4. The endless belt of wherein the tensile members are laid in a plane parallel with the longitudinal direction of the belt.5. The endless belt of wherein the tension section comprises two sets of a plurality of tensile members claim 1 , and wherein a first set tensile members are orientated in a first zig-zag pattern and a second set of tensile members are orientated in a second zig-zag pattern.6. The endless belt of wherein the first zig-zag pattern and the second zig-zag pattern ...

ARTICLE COMPRISING A FABRIC LAYER TREATED WITH PARTLY OXIDIZED POLYETHYLENE

The present invention relates to an article having an elastic main body based on at least one thermoplastic elastomer or based on a vulcanizate having an article surface provided with a textile cover ply, characterized in that the textile cover ply is treated with partially oxidized polyethylene, and to processes for producing such an article. 115.-. (canceled)16. An article comprising an elastic main body based on at least one thermoplastic elastomer or based on a vulcanizate having an article surface provided with a textile cover ply , wherein the textile cover ply is treated with partially oxidized polyethylene.17. The article as claimed in claim 16 , wherein the textile cover ply is selected from the group consisting of wovens claim 16 , formed-loop knits claim 16 , drawn-loop knits claim 16 , nonwovens and combinations thereof.18. The article as claimed in claim 16 , wherein the textile cover ply comprises a material selected from the group consisting of cellulose claim 16 , silk claim 16 , cashmere claim 16 , horsehair claim 16 , aramid (AR) claim 16 , polyurethane (PU) claim 16 , polybenzimidazole (PBI) claim 16 , melamine (MEL) claim 16 , polybenzoxazole (PBO) claim 16 , carbon claim 16 , polyamide (PA) claim 16 , polycarbonate (PC) claim 16 , polyethylene (PE) claim 16 , polypropylene (PP) claim 16 , polystyrene (PS) claim 16 , polyacrylic (PAN) claim 16 , acetate (CA) claim 16 , triacetate (CTA) claim 16 , polyvinyl alcohol (PVA) claim 16 , polyamideimide (PAI) claim 16 , polytrimethylene terephthalate (PTT) claim 16 , polyimide (PI) claim 16 , polybutylene terephthalate (PBT) claim 16 , polytetrafluoroethylene (PTFE) claim 16 , polyphenylene sulfide (PPS) claim 16 , polyetheretherketone (PEEK) claim 16 , polyester (PES) and combinations thereof.19. The article as claimed in claim 18 , wherein the textile cover ply comprises a material selected from cotton (CO) claim 18 , viscose (CV) claim 18 , PA6.6 claim 18 , PA6 claim 18 , PET claim 18 , polyurethane ...

POSITION CHANGING DEVICE

The disclosure provides a position changing device capable of reducing the size of the entire device in a plane. A position changing device () includes four pulley mechanisms (). In the pulley mechanism (), a toothed belt () is wound around a driving pulley () and a driven pulley (), and is held between the driving pulley () and an idler roller () by the idler roller () and held between the driven pulley () and an idler roller () by the idler roller (), and when the driving pulley () is driven by a driving mechanism (), the position of a movable base plate () is changed. 1. A position changing device changing a planar position of an operation machine , the position changing device comprising:a base having a planar upper surface;a moving member provided on the upper surface of the base to be movable within a predetermined range of the upper surface, and the operation machine being arranged at an upper portion of the moving member; andfour moving mechanisms arranged on the base in a positional relationship of a quadrangular shape in a plan view to surround the moving member, and moving the moving member within the predetermined range,wherein each of the four moving mechanisms comprises:an elongated member having flexibility, and two ends of the elongated member being connected to the moving member;a plurality of first rotating members arranged outside the predetermined range of the moving member on the base and wound with the elongated member, and the plurality of first rotating members being rotatable around an axis line extending in a vertical direction;a second rotating member provided to be rotatable around the axis line extending in the vertical direction, and holding the elongated member between the second rotating member and each of the plurality of first rotating members; anda driving mechanism moving the moving member within the predetermined range via the elongated member by rotationally driving at least one of the plurality of first rotating members around ...

Transmission Belt, Method for Manufacturing Transmission Belt, Reinforcing Fabric, and Method for Manufacturing Reinforcing Fabric

A power transmission belt includes a compression rubber layer that is provided on an inner circumferential side, a cog portion that is provided in at least the compression rubber layer and has cog ridges and cog valleys alternately arranged along a belt longitudinal direction, and a reinforcing fabric layer that covers a surface of the cog portion. The reinforcing fabric layer includes at least one reinforcing fabric that is bonded to surfaces of the cog ridges and the cog valleys along the belt longitudinal direction and that covers the surface of the cog portion. Both end portions of the reinforcing fabric are joined to each other at only at least one joint portion in the belt longitudinal direction. The joint portion is disposed at only a position corresponding to the cog ridge.

METHOD FOR FABRICATING A BELT WITH TREATED TENSION MEMBERS WITH ENVELOPE LAYER AND BELT THUS PRODUCED

A method for fabricating a belt with upstream treatment of a tension member. The belt comprises a belt body made of a polymeric material having elastic properties, having a top ply as belt backing and a substructure having a force transmission zone, and a tension member embedded into the belt body. The tension member has been treated with crosslinked polymer; in an upstream stage of the belt fabrication method, voids in the tension member are filled at least partly with crosslinked polymer and the tension member is sealed with an envelope layer of crosslinked polymer, this being done, in a single treatment stage or in at least two treatment stages, by wetting of the tension member with an overall treatment mixture comprising at least one prepolymer, at least one crosslinker and at least one solvent or dispersion medium, and then drying of the treated tension member. 1. A process for the manufacture of a belt with upstream treatment of a tension-member system , the process comprising: wetting a tension-member system with a first complete treatment mixture including at least one prepolymer, at least one crosslinking agent, and at least one solvent or dispersion medium;', 'filling cavities in the tension-member system at least to some extent with the first complete treatment mixture;', 'sealing the tension-member system with an encapsulating layer to make an encapsulated tension-member system; and,', 'drying the encapsulated tension-member system to prepare an at least partially crosslinked polymer and to complete the upstream treatment;, 'performing an upstream treatment byforming a substructure of a belt having a force-transmission zone by embedding the encapsulated tension-member system in a polymeric material with elastic properties; and,forming a main belt structure by providing an outer layer as belt backing on the substructure having the force-transmission zone;wherein the wetting of the tension-member system is carried out in a single treatment stage or is ...

Nubbed belt

A belt having a rear face and a front surface, which is opposite the rear face, is suitable to be coupled to at least one pulley and has a plurality of nubs, which project from a band portion, in which cords are embedded; the nubs have the same shape and sizes as one another, are arranged along a plurality of rows parallel to a longitudinal axis of the belt, and are longitudinally spaced apart from one another with a constant pitch; each nub ends, in a longitudinal direction, with two end portions opposite one another and is provided with an intermediate portion, which joins the end portions to one another and has two sides, which are parallel to the longitudinal axis.

CROSS-LINKED ELASTOMERIC LOW FRICTION FACED SYNCHRONOUS POWER TRANSMISSION BELT

A synchronous drive belt includes an outer tension section and opposing continuous tooth section defining an outer surface. The synchronous drive belt further includes a cross-linked elastomeric body, and a tensile reinforcement section disposed between the outer tension section and the cross-linked elastomeric body. A fabric reinforcement is disposed inwardly adjacent the outer surface of the continuous tooth section, and the fabric reinforcement is enveloped by the cross-linked elastomeric body. Further, the cross-linked elastomeric body forms the outer surface of the continuous tooth section. In some aspects, the cross-linked elastomeric body contains a urethane material, which may be formed from the reaction product of a polyisocyanate and a hydroxyl functional polyol during a belt molding process. The polyisocyanate and the hydroxyl functional polyol may envelop the fabric reinforcement prior to reacting during the belt molding process, or even while reacting in the molding process. 2. The synchronous drive belt of claim 1 , wherein the cross-linked elastomeric body comprises a urethane material.3. The synchronous drive belt of claim 2 , wherein the urethane material is formed from the reaction product of a diisocyanate and a hydroxyl functional polyether.4. The synchronous drive belt of claim 3 , wherein the diisocyanate and the hydroxyl functional polyether are reacted during a belt molding process.5. The synchronous drive belt of claim 4 , wherein the diisocyanate and the hydroxyl functional polyether envelop the fabric reinforcement prior to reacting during the belt molding process.6. The synchronous drive belt of claim 3 , wherein the diisocyanate and the hydroxyl functional polyether are subject to a temperature of from about 80° C. to about 100° C. during a belt molding process.7. The synchronous drive belt of claim 3 , wherein the diisocyanate and the hydroxyl functional polyether are injected into a belt mold and reacted during a belt molding process ...

Toothed Belt

The present invention relates to a toothed belt containing tooth parts that are disposed at predetermined intervals along a belt longitudinal direction, a cord, and a back side that has the cord embedded therein, in which the cord contains a Lang-twisted glass fiber, an adhesion treatment layer, and an overcoat treatment layer, the overcoat treatment layer is formed on a surface of the adhesion treatment layer, the back side is composed of a rubber composition, and the rubber composition contains from 5 parts by mass to 20 parts by mass of a plasticizer based on 100 parts by mass of a rubber component. 1. A toothed belt comprising tooth parts that are disposed at predetermined intervals along a belt longitudinal direction , a cord , and a back side that has the cord embedded therein ,wherein the cord comprises a Lang-twisted glass fiber, an adhesion treatment layer, and an overcoat treatment layer, and the overcoat treatment layer is formed on a surface of the adhesion treatment layer, andthe back side is composed of a rubber composition, and the rubber composition comprises from 5 parts by mass to 20 parts by mass of a plasticizer based on 100 parts by mass of a rubber component.2. The toothed belt according to claim 1 , wherein the plasticizer comprises at least one selected from the group consisting of ether-based claim 1 , ester-based claim 1 , ether ester-based claim 1 , phthalic acid-based claim 1 , and adipic acid-based ones.3. The toothed belt according to claim 1 , wherein the rubber composition constituting the back side has a rubber hardness measured at 25° C. of from 70° to 85°.4. The toothed belt according to claim 1 , wherein the rubber composition constituting the back side has a rubber hardness at −30° C. of from +0° to +4° as compared to the rubber hardness at 25° C.5. The toothed belt according to claim 1 , wherein starting torque at −30° C. is less than 30 cN·m.6. The toothed belt according to claim 1 , wherein the rubber composition constituting ...

TWO-FACED FABRIC WITH PARTIALLY ORIENTED YARN

A two-faced, modified interlock knit fabric for use in the manufacture of toothed belts, the fabric constructed by plating a partially oriented first yarn of polyester or nylon with a second yarn of polyester or spun cotton and knit in a blister stitch in the machine direction is provided. A method of forming toothed belts incorporating such a fabric is also provided. 1. A toothed belt comprising a rubber core material defining at least one exterior surface with a plurality of teeth , and a fabric knit with a modified interlock construction formed from a first yarn and a second yarn , whereby the first yarn is formed from a different material than the second yarn.2. The toothed belt of whereby the first yarn is a partially oriented yarn.3. The toothed belt of whereby the first yarn is formed from polyester.4. The toothed belt of whereby the second yarn is formed from cotton.5. The toothed belt of whereby the cotton yarn is defined as 100% spun cotton.6. The toothed belt of whereby the first yarn is formed from nylon.7. The toothed belt of whereby the second yarn is formed from polyester.8. The toothed belt of whereby the knit fabric defines two right faces.9. The toothed belt of whereby the knit fabric is defined by a blister stitch construction.10. The toothed belt of whereby one or more stretch characteristics of the knit fabric are determined by heating the first yarn claim 1 , and not predetermined at the time of fabric formation.11. A method of forming a toothed belt comprising the steps of:providing a first partially oriented yarn and a second yarn, the first partially oriented yarn defined by a material different than the second yarn;knitting the first partially oriented yarn with the second yarn to form a fabric defined as a modified interlock knit; andmolding the fabric to an exterior surface of a belt defining a plurality of teeth.12. The method of whereby the first partially oriented yarn is defined as polyester.13. The method of whereby the second yarn ...

HIGH-EFFICIENCY BELT AND METHOD OF MANUFACTURING THE SAME

A high efficiency belt having reduced bending stiffness while maintaining a high coefficient of friction. The belt includes a backing layer, a rib material layer, and cords embedded within, wherein the coefficient of friction of the high efficiency belt is greater than or equal to 0.03 mm/N times the bending stiffness for belts having a thickness in the range of from 2.6 mm to 4.2 mm. The belt can include a bending stiffness in the range of from about 30 N/mm to about 65 N/mm and an anisotropic modulus of elasticity ratio of between 1.1 and 5.0. Methods of manufacturing the high efficiency belt are also described and can include forming sheets of rib material with parallel aligned reinforcement fibers transverse to the direction of rotation of the high efficiency belt. 1. A ribbed high efficiency belt , comprising:a backing layer;a rib material layer disposed on the backing layer;a plurality of cords embedded within the rib material; anda plurality of ribs formed on a face of the belt opposite the backing layer;wherein the coefficient of friction of the high efficiency belt is greater than or equal to 0.03 mm/N times the bending stiffness of the high efficiency belt;wherein the thickness of the high efficiency belt is less than about 3.8 mm;wherein the material of the rib material layer comprises:about 30 wt. % to about 70 wt. % rubber stock,about 5 wt. % to about 30 wt. % reinforcement material, andabout 5 wt. % to about 45 wt. % filler;wherein the reinforcement material comprises elongated segments and the elongated segments are aligned in parallel with one another within the rib material;wherein the parallel aligned reinforcement material is aligned transverse to the direction of rotation of the high efficiency belt;wherein the high efficiency belt has an anisotropic modulus of elasticity; andwherein the ratio of the modulus of elasticity in the direction in which the reinforcement material is aligned to the modulus of elasticity in the direction transverse to ...

ELEVATOR ROPE, ELEVATOR ARRANGEMENT AND ELEVATOR

The invention relates to a belt-shaped rope of an elevator having opposite lateral sides facing in thickness direction of the rope, at least one of the lateral sides being shaped to have elongated ribs that are disposed adjacent each other in width direction of the rope and extend parallel with the longitudinal direction of the rope. Each said rib has a first flank face for contacting a flank face of a rib of a rope wheel, and a second flank face for contacting a flank face of a rib of a rope wheel. Each said first and second flank face is shaped to have an arcuate cross-sectional profile, and said first and second flank face are shaped to arc to such steepness that the angle defined between their tangents is acute, and the surface material of said flank faces has shore A hardness more than 85 and less than 100. The invention also relates to an elevator arrangement as well as to an elevator, implementing the aforementioned belt-shaped rope. 185. A belt-shaped rope of an elevator having opposite lateral sides facing in thickness direction of the rope , at least one of the lateral sides being shaped to have elongated ribs that are disposed adjacent each other in width direction of the rope and extend parallel with the longitudinal direction of the rope , each said rib having a first flank face for contacting a flank face of a rib of a rope wheel , and a second flank face for contacting a flank face of a rib of a rope wheel , each said first and second flank face being shaped to have an arcuate cross-sectional profile , and said flank faces are shaped to arc to such steepness that the angle defined between their tangents is acute , and the surface material of said flank faces has shore A hardness more than and less than 100.2. A belt-shaped rope according to claim 1 , wherein the point of tangency of each said tangent is within the central third of the height of the rib as measured in thickness direction of the rope.3. A belt-shaped rope according to claim 1 , wherein ...

Toothed belt, production method therefor, and belt transmission device

A toothed belt includes an endless back portion, a plurality of belt teeth arranged on a face of the back portion at predetermined intervals in a longitudinal direction of the back portion; and a core made of an elastic knitted or unwoven fabric and embedded in the back portion. Both of the belt teeth and the back portion are made of rubber. The core is not exposed from inter-tooth portions which are located between the belt teeth. In the core, a difference between the position of a point that is closest to the belt teeth in a belt thickness direction and the position of a point that is closest to a back face of the belt in the belt thickness direction is limited to 0.5 mm or less.

Wrapped V-Belt and Method For Manufacturing Wrapped V-Belt

The present invention relates to a wrapped V-belt containing: a belt main body containing a compression layer containing a compression rubber layer and a fabric-laminated body layer, a tension rubber layer and a tension member buried between the compression layer and the tension rubber layer; and an outside cloth that covers a periphery of the belt main body, in which the compression layer has a plurality of notch portions not covered with the outside cloth, and the notch portion has a top disposed in the fabric-laminated body layer. 1. A wrapped V-belt that is made to travel while a belt inner surface side thereof is wound around a pulley , comprising: a compression layer disposed on the belt inner surface side and comprising a compression rubber layer and a fabric-laminated body layer in which a plurality of pieces of a rubber composition-attached fabric are laminated and adhered to each other,', 'a tension rubber layer disposed on a belt outer surface side, and', 'a tension member buried between the compression layer and the tension rubber layer, and', 'having a V shape with a width on the belt inner surface side being smaller than a width on the belt outer surface side on a section in a belt width direction; and, 'a belt main body comprising'}an outside cloth that covers a periphery of the belt main body over an entire length in a belt circumferential direction,wherein the compression layer has a plurality of notch portions formed to extend in the belt width direction to be open on the belt inner surface side, are disposed to be aligned in the belt circumferential direction, and are not covered with the outside cloth, andwherein the notch portion has a top positioned on the most belt outer surface side in a belt thickness direction and disposed in the fabric-laminated body layer.2. The wrapped V-belt according to claim 1 , wherein the compression rubber layer comprises a first compression rubber layer and a second compression rubber layer claim 1 , andthe ...

TRANSMISSION BELT AND ASSOCIATED TRANSMISSION SYSTEM

A transmission belt his provided which has a first elastomeric material, a plurality of longitudinal inserts comprising a first material, a working surface covered by a covering including a second material, and an opposite surface to said working surface. At least one of the first material and the second material is a fibrous metallic material. Advantageously, the transmission belt is a toothed belt. 1. A transmission belt comprising a body including a first elastomeric material , a plurality of longitudinal inserts comprising a first material , a working surface covered by a covering comprising a second material , and an opposite surface to said working surface , wherein at least one of said first material and said second material is a fibrous metallic material comprising fibres with a diameter of between 2 and 40 μm.2. A transmission belt according to claim 1 , wherein said fibrous metallic material comprises fibres with a diameter of between 5 and 15 μm.3. A transmission belt according to claim 1 , wherein said fibrous metallic material is steel.4. A transmission belt according to claim 1 , wherein the second material is chosen from the group constituted by woven fabric claim 1 , knitted fabric and non-woven fabric.5. A transmission belt according to claim 4 , wherein said second material is a fabric.6. A transmission belt according to claim 4 , wherein said fibrous metallic material has a weight of between 500 and 1500 g/m.7. A transmission belt according to claim 4 , wherein said fabric comprises yarns that extend in the longitudinal direction and include said fibrous metallic material.8. A transmission belt according to claim 7 , wherein said yarns comprise at least one elastic yarn around which at least one yarn comprising said second material is wound.9. A transmission belt according to claim 7 , wherein said fabric comprises both longitudinal yarns and transverse yarns including said fibrous metallic material.10. A transmission belt according to claim 1 , ...

Method for Producing Drive Belts

The invention relates to a method for producing drive belts from different materials by means of casting processes. To this end, a mould core and an outer mould of a casting tool are provided. The circumferential surface of the mould core or the inner circumferential surface of the outer mould is provided with a geometry to be represented on the drive belt. A textile layer is laid on the geometry. The mould core is set into the outer mould so that the mould core and the outer mould define a cavity between them. Optionally, a tension member can be arranged in the cavity and the cavity can be sealed with respect to the environment at least in the region of the geometry to be represented on the drive belt. The textile layer is applied to the surfaces defining the geometry and an elastomer base material is introduced into the cavity. 119.-. (canceled)20. A method for producing a drive belt , comprising:a) providing a mould core and an outer mould of a casting tool, wherein the mould core is provided to be inserted into the outer mould such that a cavity representing a shape of the drive belt to be produced is formed between the outer mould and the mould core sitting therein, and wherein a circumferential surface of the mould core assigned to the cavity or the inner circumferential surface of the outer mould assigned to the cavity is provided with a geometry to be represented on the drive belt which is formed by recesses or protrusions which are delimited by surfaces abutting one another which are formed into the circumferential surface of the mould core or the inner circumferential surface of the outer mould or formed on the circumferential surface of the mould core or the inner circumferential surface of the outer mould;b) placing a textile layer on the geometry to be represented on the drive belt;c) inserting the mould core into the outer mould so that the mould core and the outer mould define the cavity between them;d) optionally arranging a tension member in the ...

RETRACTABLE SHADE STRUCTURES

A shade structure is provided that includes a frame assembly, a retractable shade assembly, and a drive system. The frame assembly includes a plurality of upright poles and a plurality of beams coupled therewith. The retractable shade assembly is coupled with the plurality of beams. The retractable shade assembly includes a shade section assembly that has a plurality of elongate bars and a shade section extending therebetween. The elongate bars are spread apart from each other to spread the shade section in an extended shade configuration. The elongate bars are moved toward each other in a retracted configuration wherein the shade section looped vertically between adjacent elongate bars.

Bearing, Traction or Drive Element Made of an Elastomer Material Having Embedded Electronic Components

A band or belt designed as an elongate bearing, traction or drive element running around rollers or pulleys and made of an elastomer material, and preferably provided with embedded reinforcing elements or tension members extending in the longitudinal direction of the band or belt, having the following features: 110-. (canceled)11. A band designed running around rollers or pulleys and made of an elastomer material , the band comprising:embedded reinforcing elements or tension members extending in a longitudinal direction;one or more elongate tubular receptacles embedded in the elastomer material, the one or more elongate tubular receptacles having a plurality of electronic components; andwherein the tubular receptacles have a longitudinal axis oriented substantially transversely to a bending direction of the band.12. The band as claimed in claim 11 , wherein the electronic components are surrounded and fixed within a cavity by a synthetic casting resin.13. The band as claimed in claim 12 , wherein the electronic components are surrounded within the cavity by shock absorbing material and the tubular receptacle is provided at the end/s with a closure or plug.14. The band as claimed in claim 11 , wherein the electronic components are surrounded within a cavity by thermally conductive material.15. The band as claimed in claim 11 , wherein the tubular receptacle is a plastic tube comprised of polyamide (PA) or polyphenylene sulfide (PPS).16. The band as claimed in claim 11 , wherein the tubular receptacle is connected to a longitudinal side of the band and a cavity is accessible from there.17. The band as claimed in claim 11 , where the band is a toothed belt or wide V-belt.18. A method for producing a drive belt claim 11 , the method comprising:build up an elastomer top ply in one or more layers on a belt building drum to build a drive belt blank;winding one or more strengthening members on the elastomer top ply;applying a fabric ply over the one or more strengthening ...

Toothed Belt

The present invention relates to a toothed belt containing a back side, tooth parts, and a tension member embedded in the back side, the back side and the tooth part contain a urethane resin composition, the tension member is a twisted cord constituted by glass fiber filaments or a twisted cord constituted by polyarylate fiber filaments, in the case where the tension member is the twisted cord constituted by glass fiber filaments, the tooth parts have a pitch of 0.45 to 0.60 mm, the glass fiber filament has a diameter of 6 to 9 micrometers, and the cord has a cord diameter of 0.14 to 0.20 mm, and in the case where the tension member is the twisted cord constituted by polyarylate fiber filaments, the tooth parts have a pitch of 0.45 to 0.71 mm, and the cord has a cord diameter of 0.14 to 0.28 mm. 1. A toothed belt comprising a back side , tooth parts , and a tension member embedded in the back side , whereinthe back side and the tooth part comprise a urethane resin composition,the tension member is a twisted cord constituted by glass fiber filaments or is a twisted cord constituted by polyarylate fiber filaments, and wherein the tooth parts have a pitch therebetween of from 0.45 to 0.60 mm,', 'the glass fiber filament has a diameter of from 6 to 9 micrometers, and', 'the cord has a cord diameter of from 0.14 to 0.20 mm, and, 'in the case where the tension member is the twisted cord constituted by glass fiber filaments,'} the tooth parts have a pitch therebetween of from 0.45 to 0.71 mm, and', 'the cord has a cord diameter of from 0.14 to 0.28 mm., 'in the case where the tension member is the twisted cord constituted by polyarylate fiber filaments,'}2. The toothed belt according to claim 1 , which is used under a condition that an axial load claim 1 , which is a load exerted on a shaft of a pulley when the toothed belt is wound around the pulley with a belt tension claim 1 , becomes from 5 to 15 N. The present invention relates to a toothed belt which is used for OA ...

BELT WITH CORRUGATED MATERIAL

An elevator system includes a hoistway, an elevator car movable along the hoistway, and one or more belts operably connected to the elevator car to propel the elevator car along the hoistway. A belt of the one or more belts includes one or more tension elements extending along a belt length, and a jacket at least partially encapsulating the one or more tension elements. The jacket includes a jacket base formed from a first material and one or more insert layers embedded in the jacket base material. The one or more insert layers have a corrugated shape along the belt length, and are formed from a second material different from the first material. 1. A belt for an elevator system , comprising:one or more tension elements extending along a belt length; and a jacket base; and', 'one or more insert layers embedded in the jacket base, the one or more insert layers having a corrugated shape along the belt length., 'a jacket at least partially encapsulating the one or more tension elements, the jacket including2. The belt of claim 1 , wherein the one or more insert layers at least partially define an outer surface of the belt.3. The belt of claim 1 , wherein a tension element of the one or more tension elements is formed from a plurality of fibers suspended in a matrix material.4. An elevator system claim 1 , comprising:a hoistway;an elevator car movable along the hoistway; one or more tension elements extending along a belt length; and', a jacket base formed from a first material; and', 'one or more insert layers embedded in the jacket base material, the one or more insert layers having a corrugated shape along the belt length, the one or more insert layers formed from a second material different from the first material., 'a jacket at least partially encapsulating the one or more tension elements, the jacket including], 'one or more belts operably connected to the elevator car to urge the elevator car along the hoistway, a belt of the one or more belts including5. The ...

Toothed Belt

Provided is a toothed belt comprising: a belt body that includes a plurality of core wires; a back surface part in which the plurality of core wires are embedded; and a plurality of teeth that oppose the back surface in a belt thickness direction. The back surface part and the plurality of teeth are integrally molded using a thermoplastic elastomer. The toothed belt is characterized in that: a belt strength per 1 mm of belt width is at least 1.85 kN; a pitch of the plurality of teeth is at least 20 mm; the height of each of the plurality of teeth is at least 5 mm; and the thickness of the back surface part is at least 4 mm. 1. A toothed belt comprising a belt body comprising plural core wires that extend in a belt longitudinal direction and are arranged in a belt width direction , a back portion in which the plural core wires are buried , and plural teeth that are opposite to the back portion in a belt thickness direction and arranged in the belt longitudinal direction so as to be spaced from each other , wherein the back portion and the plural teeth are molded integrally of a thermoplastic elastomer ,having:a belt strength per 1-mm belt width of higher than or equal to 1.85 kN;a pitch of the plural teeth of longer than or equal to 20 mm;a height of the each of the plural teeth of greater than or equal to 5 mm; anda thickness of the back portion of larger than or equal to 4 mm.2. The toothed belt according to claim 1 , wherein the each of the plural core wires is constituted of a steel cord or a cord produced by twisting at least any of aramid fibers and carbon fibers.3. The toothed belt according to claim 1 , wherein the each of the plural core wires:is constituted of a steel cord;has a strength of 7 to 8 kN; andhas a diameter of 2.3 to 2.6 mm.4. The toothed belt according to claim 1 ,wherein the plural core wires:have a pitch of 3.0 to 3.7 mm; andhave an interval between the plural core wires of 0.4 to 1.4 mm.5. The belt according to claim 1 , wherein the ...

Two-component cord and method for molded power transmission belts

A belt having a tensile cord embedded in the belt, extending in a longitudinal direction and made up of two components: a tensile component and a sacrificed component. The sacrificed component may be broken into a plurality of discontinuous segments. The tensile component provides most of the reinforcement of the belt. The sacrificial component of the precursor cord protects the tensile component from excessive stretching during cord treating and winding, but breaks, melts, or yields during mandrel expansion during the belt molding process, thus preserving the stretchability of the tensile component.

Manufacturing Process Tool and Manufacturing Process Method for Lateral Positioning Strip Toothed Belt

Disclosed is a manufacturing process tool for a lateral positioning strip toothed belt, including a lateral positioning strip, a fixing molded plate, a lateral strip belt width positioner, a lateral strip belt length positioner and a rubber body. The fixing molded plate fixes the lateral strip belt width positioner and/or the lateral strip belt length positioner, the lateral strip belt length positioner is provided on one side or two sides of the fixing molded plate, the lateral strip belt length positioner faces an inner side of the fixing molded plate and forms a lateral positioning strip belt forming groove together with the lateral strip belt width positioner, an intra-belt lateral positioning strip is provided in the lateral positioning strip belt forming groove, the rubber body is provided in the lateral positioning strip belt forming groove. 1. A manufacturing process method for a lateral positioning strip toothed belt , comprising:(1) providing an upper fixed lateral positioning strip device and a lower fixed lateral positioning strip device to form a lateral strip belt length positioner, the upper fixed lateral positioning strip device and the lower fixed lateral positioning strip device being connected in a separated manner or integrated;(2) providing a front lateral strip belt width positioner and/or a rear lateral strip belt width positioner to form a lateral strip belt width positioner;(3) providing a lateral strip fixing hole or a lateral strip fixing groove in the lateral strip belt length positioner;(4) providing a fixing molded plate, the fixing molded plate being configured to fix the lateral strip belt width positioner and/or the lateral strip belt length positioner;(5) providing an extra-belt lateral positioning strip and an intra-belt lateral positioning strip to form a lateral positioning strip;(6) providing the lateral strip belt length positioner on one side or two sides of the fixing molded plate, the lateral strip belt length positioner ...

Method for producing a composite fabric material and drive belt covered with composite fabric material

A method for producing a sheet-like composite fabric material, in particular a rubberized fabric or a fabric provided with a polymer preparation, for covering drive belts, the composite fabric material comprising a textile integrated in a matrix of elastomeric material, preferably at least one fabric layer integrated in a rubber matrix, the textile or the fabric layer and the elastomeric material being introduced into a gap between a band and a cylindrical molding wheel and molded to form a composite material between the band and the molding wheel at a temperature below the vulcanization temperature, the band looping around the molding wheel at a looping angle under pressure. Likewise disclosed is a drive belt with a covering of composite material produced according to the invention.

Toothed Belt and Manufacturing Method Therefor

A toothed belt includes: a belt main body having a tooth portion and a groove portion alternately disposed at a fixed pitch in a longitudinal direction, and an outer portion disposed on the outer surface thereof; and a cord buried on a predetermined pitch line on the outer portion, in which the belt main body includes: a support layer, disposed under the cord and containing a thermoplastic polyurethane material; and a cured polyurethane elastomer in addition to the support layer, and in which the support layer is formed of a mixture of the thermoplastic polyurethane material and the polyurethane elastomer, which are integrally cured. 1. A toothed belt comprising:a belt main body having a tooth portion and a groove portion alternately disposed at a fixed pitch in a longitudinal direction, and an outer portion disposed on an outer surface thereof; anda cord buried on a predetermined pitch line on the outer portion,wherein the belt main body comprises: a support layer, disposed under the cord and containing a thermoplastic polyurethane material; and a cured polyurethane elastomer in addition to the support layer, andwherein the support layer is formed of a mixture of the thermoplastic polyurethane material and the polyurethane elastomer, which are integrally cured.2. The toothed belt according to claim 1 ,wherein the thermoplastic polyurethane material of the support layer melts at a temperature at which the polyurethane elastomer cures.3. A method for manufacturing a toothed belt comprising a cord and a belt main body in which the cord is buried claim 1 , the method comprising:a first step of disposing a thermoplastic polyurethane nonwoven fabric in a tubular shape on a cylindrical inner mold having a groove portion and winding the cord thereon;a second step of inserting the inner mold into a bottomed cylindrical outer mold and injecting a liquid raw material of a polyurethane into an inside of the mold;a third step of depressurizing the inside of the mold to permeate ...

POWER TRANSMISSION BELT AND METHOD FOR MANUFACTURING SAME

A power transmission belt has an uneven surface of rubber which when the power transmission belt is wound around a flat pulley, comes in contact with the flat pulley. The uneven surface has projected parts each having a flat top surface. 1. A power transmission belt having an uneven surface of rubber which when the power transmission belt is wound around a flat pulley , comes in contact with the flat pulley , whereinthe uneven surface has a pattern same as a surface of a woven fabric or a knitted fabric,a projection and a recess of the uneven pattern are formed by a projection and a recess of the pattern same as the surface of the woven fabric or the knitted fabric, andthe uneven surface has projected parts each having a flat top surface.2. The power transmission belt of claim 1 , whereina total area of the flat top surfaces of the projected parts is 10 to 60% of an area of the uneven surface.3. The power transmission belt of claim 1 , whereinthe uneven surface has a pattern same as a surface of a rep weave fabric.4. The power transmission belt of claim 1 , whereinan outer diameter of each of the projected parts of the uneven surface in plan view is 0.3 to 1.4 mm.5. The power transmission belt of claim 1 , whereina surface roughness (Rz) of the uneven surface is 0.05 to 0.25 mm.6. The power transmission belt of claim 1 , whereinthe power transmission belt is a V-ribbed belt or a flat belt.7. The power transmission belt of claim 1 , whereinthe uneven surface is a back surface of the power transmission belt.8. A belt transmission system in which the power transmission belt of is wound around a plurality of pulleys claim 1 , whereinthe plurality of pulleys include a flat pulley with which the uneven surface of the power transmission belt comes in contact.9. A method of manufacturing a power transmission belt having an uneven surface of rubber which when the power transmission belt is wound around a flat pulley claim 1 , comes in contact with the flat pulley claim 1 , ...

QUICK-LINKED BELT

A quick-linked belt, which is assembled with a belt sprocket of a belt-driven vehicle, includes a belt element, at least two reinforcing elements, at least two fixing elements and at least two connecting elements. The belt element includes a plurality of belt teeth and two binding portions. The binding portions are disposed on two ends of the belt element, respectively, and each of the binding portions includes at least one opening hole. Each of the at least two reinforcing elements is disposed in the at least one opening hole of each of the binding portions and includes a through hole. Each of the at least two fixing elements is disposed in the through hole of each of the at least two reinforcing elements. Each of the at least two connecting elements includes at least two passing holes for passing through the at least two fixing elements. 1. A quick-linked belt , which is assembled with a belt sprocket of a belt-driven vehicle , comprising:a belt element comprising a plurality of belt teeth and two binding portions, wherein the belt teeth are integrally disposed on one side of the belt element, the two binding portions are disposed on two ends of the belt element, respectively, and each of the two binding portions comprises at least one opening hole;at least two reinforcing elements, wherein each of the at least two reinforcing elements is disposed in the at least one opening hole of each of the two binding portions, and each of the at least two reinforcing elements comprises a through hole;at least two fixing elements, wherein each of the at least two fixing elements is disposed in the through hole of each of the at least two reinforcing elements; andat least two connecting elements, wherein each of the at least two connecting elements comprises at least two passing holes for passing through the at least two fixing elements, and the two binding portions are connected to each other by the at least two connecting elements so as to enclose the belt element into a ...

Synchronous Belt Drive System

A synchronous belt drive system having: a synchronous belt with a tensile cord of high-modulus fiber such as glass, carbon, PBO, or aramid; a driver sprocket and at least one driven sprocket, at least one of which is an obround sprocket; and a tensioner having: a base having a cylindrical portion extending axially with a radially outer surface and a receiving portion, an eccentric arm pivotally engaged with the radially outer surface, a torsion spring disposed within the receiving portion, the torsion spring applying a biasing force to the eccentric arm, and a pulley journalled to the eccentric arm. Preferably, no one of the eccentric arm, pulley, or torsion spring is axially displaced along an axis A-A from the others. The obround sprocket has a toothed surface and at least one linear portion disposed between two arcuate portions having a constant radius, the linear portion having a predetermined length. 1. A synchronous belt drive system comprising:{'b': '200', 'a synchronous belt () having a tensile cord comprising a high-modulus fiber;'}{'b': '10', 'a driver sprocket and at least one driven sprocket, at least one of which is an obround sprocket (); and'}a tensioner comprising a base having a cylindrical portion extending axially, the cylindrical portion comprising a radially outer surface and a receiving portion that is radially inward of the radially outer surface; an eccentric arm pivotally engaged with the radially outer surface; a torsion spring disposed within the radially inward receiving portion, the torsion spring applying a biasing force to the eccentric arm; and a pulley journalled to the eccentric arm.2. The synchronous belt drive system of wherein the eccentric arm claim 1 , the pulley claim 1 , and the torsion spring are concentrically arranged such that no one of the eccentric arm claim 1 , pulley claim 1 , or torsion spring is axially displaced along an axis A-A from the others.31016141512. The synchronous belt drive system of wherein the obround ...

METHOD FOR PREPARING A TENSION MEMBER, IN PARTICULAR A CARBON TENSION MEMBER, IN THE PRODUCTION OF A BELT

A method for treating a tension member in the production of a belt. The belt includes at least a belt body made of a polymer material having elastic properties, a cover layer as a belt backing, and a substructure having a force-transmission zone. The tension member has a ribbed design and is embedded in the belt body. The tension member is treated with an overall treatment mixture which forms a cross-linked polymer that on the one hand enters into a mechanical connection with the tension member and on the other hand forms an adhesive connection with the belt body. 1. A method of treating a tensile member for fabricating a belt comprising:wetting a tensile member having voids and being in cord construction with an overall treatment mixture including at least a prepolymer, a crosslinker, and at least one of an inert solvent or dispersant in a single treatment stage, thereby filling at least some of the tensile member voids with the overall treatment mixture to form a treated tensile member;drying the treated tensile member to form a dried tensile member; and,embedding the dried tensile member in a belt body composed of a polymeric material having elastic properties;the belt body having a top ply as belt backing and a substructure having a power transmission zone; and,the overall treatment mixture forming a crosslinked polymer having both a mechanical attachment to the tensile member and an adherent bond with the belt body.2. A method of treating a tensile member for fabricating a belt comprising:wetting a tensile member having voids and being in cord construction with an overall treatment mixture including at least a prepolymer, a crosslinker, and at least one of an inert solvent or dispersant in two or more treatment stages, thereby filling at least some of the tensile member voids with the overall treatment mixture to form a treated tensile member;drying the treated tensile member to form a dried tensile member; and,embedding the dried tensile member in a belt body ...

ELECTRIC POWER STEERING APPARATUS

The present invention relates to an electric power steering apparatus including a power transmission belt. The power transmission belt includes: an engagement part provided inside the power transmission belt where the power transmission belt is engaged with a motor pulley and a nut pulley; and a vibration reduction part provided outside the power transmission belt opposite to the engagement part. The engagement part is made of an elastic material, and the vibration reduction part is made of an elastic material that is less rigid than the engagement part. With this configuration, even if vibration and noise are generated from a motor, between the motor and a pulley, and between a belt and the pulley in the process of transmitting a torque of the motor, the vibration and the noise are reduced and prevented from being transferred to a peripheral component. 1. An electric power steering apparatus including a power transmission belt , wherein the power transmission belt comprises:an engagement part that is provided inside the power transmission belt where the power transmission belt is engaged with a motor pulley and a nut pulley; anda vibration reduction part that is provided outside the power transmission belt opposite to the engagement part, andwherein the engagement part is made of an elastic material, and the vibration reduction part is made of an elastic material that is less rigid than the engagement part.2. The electric power steering apparatus of claim 1 , wherein a plurality of rigidity reinforcement members made of a glass fiber material are embedded inside the engagement part.3. The electric power steering apparatus of claim 1 , wherein the engagement part is coated with a tooth surface-protective material made of a fiber material on tooth surfaces of the motor pulley and the nut pulley.4. The electric power steering apparatus of claim 1 , wherein the vibration reduction part has a natural frequency that is less than that of the power transmission belt so as ...

WARP STRETCH FABRIC AND METHOD

A warp-directional stretch fabric that defines two right faces and is formed from warp yarns defined by a nylon and fill yarns defined by an aramid. The fabric can be incorporated into a toothed belt, for example a transmission belt, to produce a belt that has enhanced structural and resistance capabilities while capable of being produced at a lower cost than prior art belts. A method of producing an improved toothed belt including the fabric is also provided. 1. A toothed belt comprising a core material defining at least one exterior surface with a plurality of teeth , and a woven fabric formed from a plurality of warp yarns defined by a first material and a plurality of fill yarns defined by a second material and attached to the at least one exterior surface over the plurality of teeth , whereby the woven fabric exhibits more than forty-five percent (45%) elongation in the warp direction and less than twenty-five percent (25%) elongation in the fill direction , and whereby the fabric defines a four harness satin weave in a broken twill pattern.2. The toothed belt of whereby the core material is rubber.3. The toothed belt of whereby the first material is a nylon.4. The toothed belt of whereby the first material is nylon 6 claim 3 , 6.5. The toothed belt of whereby the second material is an aramid.6. The toothed belt of whereby the second material is meta-aramid.7. The toothed belt of whereby the second material is para-aramid.8. A method of producing the toothed belt of claim 1 , the method comprising the steps of:providing a core material and a loom including warp yarns defined by a first material and fill yarns defined by a second material,molding the core material into a circular belt with at least one exterior surface,weaving the warp yarns and the fill yarns into a fabric, whereby the woven fabric exhibits more than forty-five percent (45%) elongation in the warp direction and less than twenty-five percent (25%) elongation in the fill directionattaching the ...

WARP STRETCH FABRIC AND METHOD

A warp-directional stretch fabric that defines two right faces and is formed from warp yarns defined by a nylon and fill yarns defined by an aramid. The fabric can be incorporated into a toothed belt, for example a transmission belt, to produce a belt that has enhanced structural and resistance capabilities while capable of being produced at a lower cost than prior art belts. A method of producing an improved toothed belt including the fabric is also provided. 1. A toothed belt comprising a core material defining at least one exterior surface with a plurality of teeth , and a double-faced woven fabric formed from a plurality of warp yarns defined by a nylon and a plurality of fill yarns defined by an aramid and attached to the at least one exterior surface over the plurality of teeth , whereby the woven fabric exhibits more than forty-five percent (45%) elongation in the warp direction and less than twenty-five percent (25%) elongation in the fill direction.2. The toothed belt of whereby the core material is rubber.3. The toothed belt of whereby the first material is nylon 6 claim 1 , 6.4. The toothed belt of whereby the second material is meta-aramid.5. The toothed belt of whereby the second material is para-aramid.6. The toothed belt of whereby the woven fabric is a twill construction.7. The toothed belt of whereby the woven fabric defines a broken twill pattern.8. The toothed belt of whereby the woven fabric defines a four harness satin weave.9. A method of producing the toothed belt of claim 1 , the method comprising the steps of:providing a core material and a loom including warp yarns defined by a nylon material and fill yarns defined by an aramid material,molding the rubber core material into a circular belt with at least one exterior surface,weaving the warp yarns and the fill yarns into a fabric, whereby the fabric exhibits more than forty-five percent (45%) elongation in the warp direction and less than twenty-five percent (25%) elongation in the fill ...

TOOTHED BELT WITH INTEGRATED SENSOR SYSTEM

A toothed belt includes at least one tension member and a plastics material matrix which at least partially encases the tension member. The at least one tension member extends in the plastics material matrix in a running direction and teeth of the toothed belt are formed transversely to the running direction in the plastics material matrix. The tension member is formed from an electrically conductive material and the plastics material matrix is formed from an electrically insulating material. The toothed belt has at least one electronic component which is embedded in the plastics material matrix and has at least one sensor which detects data on a condition parameter of the toothed belt. The at least one electronic component is coupled to the tension member via at least two voltage taps to tap a voltage induced in the tension member to supply the at least one electronic component with power. 1. A toothed belt having at least one tension member and a plastics material matrix which at least partially encases the tension member ,wherein the at least one tension member extends in the plastics material matrix in a running direction of the toothed belt and wherein teeth of the toothed belt are formed transversely to the running direction in the plastics material matrix,wherein the tension member is formed from an electrically conductive material and wherein the plastics material matrix is formed from an electrically insulating material,wherein the toothed belt has at least one electronic component which is embedded in the plastics material matrix and has at least one sensor which detects data on a condition parameter of the toothed belt,whereinthe at least one electronic component is coupled to the tension member via at least two voltage taps, in order to tap a voltage induced in the tension member to supply the at least one electronic component with power.2. The toothed belt according to claim 1 , wherein the toothed belt is designed as an endless toothed belt.3. The ...

HYBRID CHAIN TIMING BELT

A hybrid chain belt which includes a toothed rubber belt and a pair of chains comprising a plurality of interleaved or laced sets of inner chain links and a plurality of interleaved outer or external links immediately adjacent the inner links mounted to the sides of the toothed belt. Each of the inner links and outer links has a pair of spaced apertures for receiving at least one pin which passes through the apertures of the links. The pins extend through the teeth of the rubber belt. Alternatively, the pair of chains may be replaced with outer links with either two apertures or a single aperture. 1. A hybrid chain belt for engagement with teeth of a sprocket comprising:a toothed belt having a top surface, a first side surface, a second side surface, a bottom surface, and a plurality of teeth which extend from at least one of the top surface or the bottom surface;a plurality of pairs of plates, each pair of plates comprising a plate on the first side surface and a plate on the second side surface of the toothed belt, each plate having at least one aperture; anda plurality of pins, each pin extending through the aperture of a plate on the first side surface of the toothed belt, through the toothed belt, through the second side surface of the toothed belt, and through the aperture of a plate on the second side surface of the toothed belt;wherein the plurality of plates have a height which is greater than the [[a]] height of the teeth of the toothed belt such that the plurality of plates engage a sliding surface of a guide or tensioner arm.2. The hybrid chain belt of claim 1 , wherein each pin is fixedly attached to each of the pair of plates.3. The hybrid chain belt of claim 1 , further comprising a rivet attached to ends of each pin.4. The hybrid chain belt of claim 1 , wherein each of the pins is non-circular in shape.5. The hybrid chain belt of claim 1 , wherein the toothed belt has teeth on both the top surface and bottom surface.6. The hybrid chain belt of claim ...

TOOTHED BELT HAVING A WOVEN FABRIC LAYER AND METHOD FOR MAKING THE SAME

A toothed belt includes a toothed profile made of a base material and defining a toothed profile drive side and a far side facing away from the drive side. A woven ply has a thickness and is applied to the far side of the toothed profile. The woven ply has a first side in contact with the far side causing the base material to penetrate the woven ply at least partly at the first side thereof. The woven ply has a second side facing away from the first side. A coating of plastic on the second side causes the plastic to penetrate the woven ply at least partly at the second side. The base material and the plastic each penetrate the woven ply to an extent to cause the woven ply to be free of the base material and the plastic in an inner lying thickness region thereof. 19-. (canceled)10. A toothed belt comprising:a toothed profile defining a toothed profile drive side and a far side facing away from said drive side;said toothed profile including a base material;a woven ply having a predetermined thickness and being applied to said far side of said toothed profile;said woven ply having a first side in contact with said far side causing said base material of said toothed profile to penetrate said woven ply at least partly at said first side thereof;said woven ply having a second side facing away from said first side;a coating of plastic on said second side of said woven ply causing said plastic to penetrate said woven ply at least partly at said second side; and,said base material and said plastic each penetrating said woven ply to an extent to cause said woven ply to be free of said base material and said plastic in an inner lying thickness region thereof with reference to said predetermined thickness.11. The toothed belt of claim 10 , wherein said woven ply is penetrated by said plastic of said coating at said second side up to a penetration depth of 5 to 50% of said predetermined thickness of said woven ply.12. The toothed belt of claim 11 , wherein said inner lying ...

Fabric for Toothed Power Transmission Belt and Belt

A fabric for reinforcing a power transmission belt including fibers of polyarylene sulfide and a belt utilizing the fabric. The fabric may have textured or elastic core wrapped stretch yarns in the longitudinal direction. Longitudinal yarns may include PPS and textured transverse yarns include nylon. Yarns may include blends of high performance fibers and nylon or other fibers. 1. A woven stretch fabric for reinforcing a power transmission belt comprising textured staple fibers of polyarylene sulfide and optionally some textured fibers of polyamide.2. The fabric of comprising warp and weft threads claim 1 , wherein at least one of said warp and weft threads comprises said staple fibers of polyarylene sulfide in the form of a textured staple yarn of poly p-phenylene sulfide fibers.3. The fabric of wherein said poly p-phenylene sulfide fibers are present in the weft and textured to have at least 50% elongation at 2 kg tension claim 2 , and said warp comprises textured polyamide fiber.4. The fabric of wherein said fabric further comprises as said polyamide fiber nylon-66 fibers textured to have from 1 to 20% elongation at 2 kg tension claim 3 , and wherein said fabric has no elastic core thread.5. A power transmission belt having an elastomeric body claim 3 , a tensile member embedded within said body claim 3 , a pulley contact surface claim 3 , and a back surface; comprising on at least one of said surfaces a woven stretch fabric comprising textured staple fibers of polyarylene sulfide and optionally some textured fibers of nylon.6. The belt of in the form of a toothed belt having teeth on said pulley contact surface and with said fabric covering said teeth.7. The belt of wherein said fabric is woven with transverse and longitudinal threads with respect to their orientation in the belt claim 5 , and wherein said transverse threads comprise nylon-66 fibers claim 5 , and said longitudinal threads comprise both textured nylon-66 fibers and said polyarylene sulfide fibers ...

BIAS TOOTH FABRIC AND TOOTHED POWER TRANSMISSION BELT

A cover fabric for a power transmission belt, the fabric woven from warp yarns and weft yarns; the warp yarns and weft yarns each plied from a first filament yarn and a second filament yarn; the first filament yarn comprising higher tensile strength fibers than the second filament yarn; and the fabric woven in a modified twill pattern. A toothed belt with the cover fabric on the teeth, oriented on a bias, with the fabric having a bias angle less than 90°. 1. A cover fabric for a power transmission belt , said fabric woven from warp yarns and weft yarns; said warp yarns and weft yarns each plied from a first filament yarn and a second filament yarn; said first filament yarn comprising higher tensile strength fibers than said second filament yarn; and said fabric woven in a modified twill pattern.2. The cover fabric of wherein the modified twill pattern comprises one or more rows of 1/1 or 2/1 plain weave alternating with one or more rows of a 1/3 or 1/4 or 2/4 satin weave.3. The cover fabric of wherein said warp yarns and weft yarns are each plied with a final twist in the range of 1.0 to 5.0 twists per cm.4. The cover fabric of wherein said warp yarns and said weft yarns have the same composition.5. The cover fabric of wherein said first filament yarn comprises aramid fibers and said second filament yarn comprises nylon fibers.6. The cover fabric of wherein said first filament yarn makes up more than half of the total denier of the warp and weft yarns.7. The cover fabric of oriented on a bias with bias angle less than 90 degrees.8. The cover fabric of comprising a relatively smooth side and a relatively rough side.9. The cover fabric of oriented on a bias with bias angle of about 80 degrees.10. A toothed power transmission belt comprising a bias fabric covering said teeth; wherein said bias fabric is woven from nonstretchable warp yarns and weft yarns oriented at a bias angle of less than 80°; said warp yarns and weft yarns each plied from a first filament yarn and ...

TOOTHED POWER TRANSMISSION BELT WITH BACK FABRIC

A toothed power transmission belt with a smooth back side surface has a back jacket on the back side surface; wherein the back jacket comprises a closed-mesh, knit fabric tube. The fabric tube may be knitted on a circular weft knitting machine and may be heat set after knitting. The fabric tube may be treated with an epoxy, RFL or other treatment to provide for oil resistance, adhesion, frictional properties, etc. 1. A toothed power transmission belt comprising: a rubber belt body with a toothed surface on one side thereof and a smooth back side surface opposite the one side; a tooth jacket covering the toothed surface; a tensile cord embedded in the belt body; and a back jacket on the back side surface; wherein the back jacket comprises a closed-mesh , knit fabric tube.2. The belt of wherein the fabric tube is knitted with an elastic yarn and an inelastic yarn.3. The belt of wherein the fabric tube is knitted with an elastic yarn and an inelastic yarn fed separately into a circular claim 1 , weft-knitting machine.4. The belt of wherein the elastic yarn comprises polyurethane and the inelastic yarn comprises nylon.5. The belt of wherein the back jacket further comprises a coating comprising an epoxy on the fabric tube.6. The belt of wherein the back jacket further comprises a coating comprising an epoxy and a latex rubber on the fabric tube.7. A method of making the toothed power transmission belt of comprising:providing the closed-mesh, knit fabric tube;treating the knit fabric tube with a coating to make the back jacket;applying the back jacket to a belt slab on a belt-building mandrel;curing the belt slab and cutting to a desired width, resulting in the toothed power transmission belt.8. The method of wherein the treating comprises drying the coated fabric tube in a stress-free process.9. The method of wherein the stress-free process comprises drying the coated fabric tube on a carrier fabric.10. The method of wherein the knit fabric tube comprises an elastic ...

DRIVE BELT FOR A PASSENGER CONVEYOR

There is provided a support member () for a drive belt () of a passenger conveyor (), including at least one engagement portion () having a length (L) substantially equal to the width (w) of the drive belt (), and a coupling element () provided at each end of the at least one engagement portion (). Each coupling element () is configured to engage with a corresponding coupling element () of a conveyance element () of the passenger conveyor (). 16016026030130230101010ab. A support member ( , , ) for a drive belt ( , , ) of a passenger conveyor ( , , ) , comprising:{'b': 62', '162', '262', '30', '130', '230, 'at least one engagement portion (, , ) having a length (L) substantially equal to the width (w) of the drive belt (, , ), and'}{'b': 65', '165', '265', '62', '162', '262', '65', '165', '265', '56', '14', '14', '14', '10', '10', '10, 'i': a', 'b', 'a', 'b, 'a coupling element (, , ) provided at each end of the at least one engagement portion (, , ), each coupling element (, , ) configured to engage with a corresponding coupling element () of a conveyance element (, , ) of the passenger conveyor (, , ).'}260160260621622623830130230. The support member ( claim 1 , claim 1 , ) according to claim 1 , wherein the or each engagement portion ( claim 1 , claim 1 , ) is configured to fit within a recess () of the drive belt ( claim 1 , claim 1 , ).3601602606216226238. The support member ( claim 2 , claim 2 , ) according to claim 2 , wherein the or each engagement portion ( claim 2 , claim 2 , ) has a profile configured for a form-fit engagement with the respective recess ().46016026065165265641641632642636416416326426313262162262. The support member ( claim 1 , claim 1 , ) according to claim 1 , wherein each coupling element ( claim 1 , claim 1 , ) is provided in a coupling portion ( claim 1 , claim 1 , claim 1 , claim 1 , ) claim 1 , each coupling portion ( claim 1 , claim 1 , claim 1 , claim 1 , ) having a cross-sectional area (A claim 1 , A) that is larger than a cross- ...

TOOTHED BELT

A toothed belt includes an uneven surface formed due to a weave pattern of a woven fabric or a knit loop pattern of a knitted fabric at a tooth bottom portion between toothed portions. 1. A toothed belt comprising:an endless toothed belt body made of polyurethane resin and provided, on its inner circumference, with a plurality of toothed portions spaced apart from one another;a cord buried in the toothed belt body so as to lie along a belt length direction and form a helical pattern having a pitch in a belt width direction;a nonwoven fabric buried in the toothed belt body at a position that is closer to the inner circumference in a belt thickness direction than a position where the cord is buried, the nonwoven fabric filled with the polyurethane resin which forms the toothed belt body and lying along the belt length direction; anda woven fabric or a knitted fabric integrally disposed in the toothed belt body at a position that is closer to the inner circumference in the belt thickness direction than the position where the nonwoven fabric is buried, the woven fabric or the knitted fabric filled with the polyurethane resin which forms the toothed belt body and lying along the belt length direction, whereina tooth bottom portion between the toothed portions has an uneven surface formed due to a weave pattern of the woven fabric or a knit loop pattern of the knitted fabric.2. The toothed belt of claim 1 , whereinthe uneven surface of the tooth bottom portion has an arithmetic mean roughness of 5 μm to 25 μm which is measured based on JIS B0601.3. The toothed belt of claim 1 , whereina fiber material which forms the nonwoven fabric is nylon fibers.4. The toothed belt of claim 1 , wherein{'sup': 2', '2, 'the nonwoven fabric has a basis weight of 200 g/mto 600 g/m.'}5. The toothed belt of claim 1 , whereinportions of the nonwoven fabric corresponding to the toothed portions are protruded toward the toothed portions to have a thickness that is 50% or more on average of a ...

Toothed Belt Transmission Device

This toothed belt transmission device () includes a toothed belt () in which belt teeth () and belt tooth bottom parts () are alternately formed, and a toothed pulley () in which pulley teeth () and pulley tooth bottom parts () are alternately formed so as to mesh with the toothed belt (). The tips of the belt teeth () come into contact with the pulley tooth bottom parts (), but the tips of the pulley teeth () do not come into contact with the belt tooth bottom parts (), and gaps (S) are provided between the tips of the pulley teeth () and the belt tooth bottom parts (). 1. A toothed belt power-transmission device comprising:a toothed belt having belt teeth and belt tooth bottom portions formed alternately; anda toothed pulley having pulley teeth and pulley tooth bottom portions formed alternately to be configured to mesh with the toothed belt,wherein tip ends of the belt teeth are in contact with the pulley tooth bottom portions, andwherein tip ends of the pulley teeth are not in contact with the belt tooth bottom portions to provide a gap between the tip ends of the pulley teeth and the belt tooth bottom portions.2. The toothed belt power-transmission device according to claim 1 ,wherein the gap is 5 to 11% of a height of the belt teeth.3. The toothed belt power-transmission device according to claim 1 ,wherein at a central position of the belt teeth in a height direction of the belt teeth, a backlash of 2.5 to 3.5% of a width of the belt teeth at the central position is provided between the belt teeth and the pulley teeth.4. The toothed belt power-transmission device according to claim 1 ,wherein the belt teeth has a pitch of 14 mm or more, andwherein the belt teeth has a height of 5 mm or more.5. The toothed belt power-transmission device according to claim 1 ,wherein the toothed belt comprises a back surface portion opposite to the belt teeth in a height direction of the belt teeth, and a plurality of tension members embedded in the back surface portion, ...

Toothed power transmission belt with back fabric

A toothed power transmission belt with a smooth back side surface has a back jacket on the back side surface; wherein the back jacket comprises a closed-mesh, knit fabric tube. The fabric tube may be knitted on a circular weft knitting machine and may be heat set after knitting. The fabric tube may be treated with an epoxy, RFL or other treatment to provide for oil resistance, adhesion, frictional properties, etc.

METHOD OF PRODUCTION FOR ATTACHING A PROFILE TO A TOOTHED BELT

The invention relates to a method of production for attachment by cohesive bonding of a profile having at least one profile element onto a toothed belt previously produced as a semi-finished product. The toothed belt has a tooth side with a toothing and a toothed belt back located on the back of the tooth side of the toothed belt. In the method of production the at least one profile element is built up layer by layer from at least one first profile element layer and a second profile element layer on the toothed belt back, by the application of an application compound to the toothed belt back at a profile element position by melt layer printing. 1. A method of production for attachment by cohesive bonding of a profile having at least one profile element onto a toothed belt previously produced as a semi-finished product and having a tooth side with a toothing and a toothed belt back located on the back of the tooth side of the toothed belt , comprising:building up the at least one profile element layer by layer from at least one first profile element layer and a second profile element layer on the toothed belt back, by the application of an application compound to the toothed belt back at a profile element position by means of melt layer printing.2. The method according to claim 1 , wherein building up of the at least one profile element comprises the following steps:providing a melt layer 3D printer having at least one print head,positioning the profile element position of the toothed belt back in a working range of the print head of the melt layer 3D printer,heating at least the profile element position of the toothed belt back to a predetermined application temperature,applying the first profile element layer using melt layer printing from the application compound, after the toothed belt back has reached the predetermined application temperature,starting on the first profile element layer, applying, layer by layer, at least the second profile element layer of the ...

Transmission Belt

The durability of a belt is enhanced by improving the strength of rubber itself while enhancing its peeling strength with respect to a cord, a fabric or a short fiber. A toothed belt () comprises a belt body () that is integrally formed by a tooth rubber () provided on one surface side thereof, a backing rubber () provided on the other surface side, and an embedded cord () spirally wound in a boundary portion between the tooth rubber () and the backing rubber () that extends in the longitudinal direction of the belt. A facing fabric () covering the tooth rubber () is adhered to a surface of the tooth rubber (), or one surface of the belt body (). The tooth rubber () is obtained by vulcanization-molding a rubber composition including rubber such as HNBR, resorcinol, a melamine compound, silica and the like. 1. A power transmission belt , comprising a rubber portion which is molded by vulcanizing a rubber composition including rubber , resorcinol and a melamine compound.2. The power transmission belt according to claim 1 , wherein the melamine compound is a hexamethoxy methylol melamine compound.3. The power transmission belt according to claim 1 , wherein the rubber portion is adhered to a cord or fabric claim 1 , or the rubber portion loads a short fiber embedded therein.4. The power transmission belt according to claim 3 , wherein at least one of the cord claim 3 , the fabric and the short fiber is subjected to RFL treatment.5. The power transmission belt according to claim 1 , wherein an aramid short fiber is embedded within the rubber portion.6. The power transmission belt according to claim 1 , wherein the rubber includes a hydrogenated nitrile rubber.7. The power transmission belt according to claim 1 , wherein the rubber composition further includes silica.8. The power transmission belt according to claim 1 , wherein the power transmission belt is a toothed belt with tooth rubber claim 1 , and the rubber portion constitutes at least a part of the tooth rubber. ...

Toothed Belt

The present invention relates to a toothed belt containing a plurality of tooth parts that are disposed at predetermined intervals along the longitudinal direction and contain a rubber composition (A) as a base material and a back side that has a cord embedded therein and contains a rubber composition (B) as a base material, in which the cord contains a Lang-twisted carbon fiber and is formed in a diameter of 1.1 mm or more and 2.5 mm or less and the rubber composition (B) constituting the back side has a hardness of from 80 degrees to 89 degrees in JIS-A hardness. 1. A toothed belt comprising a plurality of tooth parts that are disposed at predetermined intervals along a longitudinal direction and comprise a rubber composition (A) as a base material , and a back side that has a cord embedded therein and comprises a rubber composition (B) as a base material ,wherein the cord comprises a Lang-twisted carbon fiber and is formed in a diameter of 1.1 mm or more and 2.5 mm or less andthe rubber composition (B) constituting the back side has a hardness of from 80 degrees to 89 degrees in JIS-A hardness.2. The toothed belt according to claim 1 , wherein the rubber composition (A) constituting the tooth parts has a hardness of from 92 degrees to 96 degrees in JIS-A hardness.3. The toothed belt according to claim 2 , wherein a difference between the hardness of the rubber composition (A) constituting the tooth parts and the hardness of the rubber composition (B) constituting the back side is from 7 degrees to 16 degrees in JIS-A hardness.4. The toothed belt according to claim 1 , wherein both of the rubber composition (A) constituting the tooth parts and the rubber composition (B) constituting the back side comprise a hydrogenated acrylonitrile-butadiene rubber and an unsaturated carboxylic acid metal salt-containing hydrogenated acrylonitrile-butadiene rubber.5. The toothed belt according to claim 1 , wherein the rubber composition (B) constituting the back side comprises a ...

Belt

The present invention concerns a belt (), with a belt body () which extends substantially in a longitudinal direction and substantially comprises a flexible material, wherein at least one tensioning member (), preferably a plurality of tensioning members (), is at least substantially embedded in the belt body () in the longitudinal direction and at least substantially surrounded by the flexible material of the belt body (), and with a coating () which is arranged directly on the belt body () from a drive side () of the belt (), wherein the coating () comprises a fabric layer (). The belt () is characterized in that facing the belt body (), the coating () has a first film () which is arranged between the belt body () and the fabric layer () and is designed to isolate the belt body from the fabric layer (). 110.-. (canceled)11. A belt comprising a belt body which extends substantially in a longitudinal direction and substantially comprises a flexible material;wherein at least one tensioning member is at least substantially embedded in the belt body in the longitudinal direction and the at least one tensioning member is at least substantially surrounded by the flexible material of the belt body;wherein a coating is arranged directly on the belt body from a drive side of the belt, and wherein the coating comprises a fabric layer; and,wherein facing the belt body, the coating has a first film which is arranged between the belt body and the fabric layer and is designed to isolate the belt body from the fabric layer.12. The belt as claimed in claim 11 , wherein the at least one tensioning member is a plurality of tensioning members.13. The belt as claimed in claim 11 , wherein the flexible material of the belt body comprises polyurethane claim 11 , and wherein the material of the first film comprises polyurethane.14. The belt as claimed in claim 13 , wherein the flexible material of the belt body and the material of the first film comprise the same polyurethane.15. The ...

TOOTHED BELT FOR A MOVABLE ROOF ELEMENT OF A VEHICLE, SYSTEM FOR A VEHICLE ROOF, AND METHOD FOR PRODUCING A TOOTHED BELT FOR A MOVABLE ROOF ELEMENT

A toothed belt for a movable roof element of a vehicle which may have a toothed belt body made of plastic, a coupling element, and an interface of the toothed belt, which interface is formed by the coupling element, for coupling to the movable roof element, wherein—the coupling element and the toothed belt body are coupled to each other in a form fitting manner. 1. A toothed belt for a movable roof element of a vehicle , comprising:a toothed belt body made of plastic,a coupling element, andan interface of the toothed belt, which interface is formed by the coupling element, for coupling to the movable roof element, whereinthe coupling element and the toothed belt body are coupled to each other in a form fitting manner.2. The toothed belt according to claim 1 , comprising a fused connection which connects the coupling element and the toothed belt body to each other.3. The toothed belt according to claim 1 , in which a surface of the coupling element has a structured form claim 1 , and the plastic forms a form fit with the structured form.4. The toothed belt according to claim 1 , in which the coupling element has a recess claim 1 , and the plastic reaches through the recess from one side of the coupling element to an opposite side of the coupling element.5. The toothed belt according to claim 1 , in which the interface has a region set back transversely with respect to the longitudinal axis of the toothed belt.6. The toothed belt according to claim 1 , in which the coupling element has a region projecting transversely with respect to the longitudinal axis of the toothed belt body.7. The toothed belt according to claim 1 , in which the coupling element is completely covered by the plastic at least on two opposite sides.8. The toothed belt according to claim 1 , in which the coupling element is metal.9. The toothed belt according to claim 1 , in which the interface is configured for coupling to a roller blind coupling of a roller blind.10. A system for a vehicle roof ...

Toothed Belt and Manufacturing Method Therefor

The present invention relates to a toothed belt () containing: a belt main body () containing an array of a cord, a tooth portion () formed on the lower side of the array of the cord and arranged at a predetermined interval along a longitudinal direction of the cord, and a back surface portion () formed on the upper side of the array of the cord and having the cord buried therein, which are integrally molded with a first thermoplastic elastomer composition; and a back sheet () adhered to the back surface portion side of the belt main body () and composed of a second thermoplastic elastomer composition, in which the back sheet () has an uneven shape () in a surface on the adhesion side. 1. A toothed belt comprising:a belt main body comprising an array of a cord, a tooth portion formed on the lower side of the array of the cord and arranged at a predetermined interval along a longitudinal direction of the cord, and a back surface portion formed on the upper side of the array of the cord and having the cord buried therein, which are integrally molded with a first thermoplastic elastomer composition; anda back sheet adhered to the back surface portion side of the belt main body and composed of a second thermoplastic elastomer composition,wherein the back sheet has an uneven shape in a surface on the adhesion side.2. The toothed belt according to claim 1 ,wherein the uneven shape is formed by arranging convex and concave portions along the longitudinal direction of the cord at a predetermined interval, and the predetermined interval of the convex and concave portions is smaller than the predetermined interval of the tooth portion.3. The toothed belt according to claim 1 ,wherein the second thermoplastic elastomer composition forming the back sheet has a different property from that of the first thermoplastic elastomer composition forming the belt main body.4. A method for manufacturing the toothed belt as described in claim 1 ,comprising:a first step of forming the back ...

BELT-TYPE TRACTION MEANS AND METHOD FOR FABRICATING THE TRACTION MEANS AS WELL AS USE OF SAID TRACTION MEANS IN AN ELEVATOR AND AN ELEVATOR PROVIDED WITH SAID TRACTION MEANS

The object of the invention is a belt-type traction means, which comprises a herringbone toothed belt, which has at least a tooth part and a support structure supporting the tooth part, which support structure comprises a plurality of reinforcement means in the longitudinal direction of the toothed belt. In the transverse direction of the toothed belt the toothed belt comprises two edge parts side by side and a center part between the edge parts connecting the edge parts, the spring constant of which center part in the transverse direction of the toothed belt is smaller than the corresponding spring constant of the edge parts. In addition, the object of the invention is a method for fabricating the aforementioned traction means and the use of the traction means in an elevator as well as an elevator provided with the aforementioned traction means. 1. Belt-type traction means , which comprises a herringbone toothed belt , which has at least a tooth part and a support structure supporting the tooth part , which support structure comprises a plurality of reinforcement means in the longitudinal direction of the toothed belt , wherein in the transverse direction of the toothed belt the toothed belt comprises two edge parts side by side and a center part between the edge parts and connecting the edge parts , the spring constant of which center part in the transverse direction of the toothed belt is smaller than the corresponding spring constant of the edge parts.2. Traction means according to claim 1 , wherein the thickness of the center part is equal to claim 1 , or smaller than claim 1 , the thickness of the support structure of the edge parts.3. Traction means according to claim 1 , wherein the center part is of a different material than the edge parts and the material of the center part is both softer and more flexible than the material of the edge parts.4. Traction means according to claim 1 , wherein the center part is fastened at its sides to the side surface of the ...

Transmission Belt

The present invention relates to a transmission belt which is provided with: a rubber layer that is formed from a vulcanized product of a rubber composition which contains a rubber component containing an ethylene-α-olefin elastomer, a filler containing silica, a vulcanizing agent containing a sulfur-based vulcanizing agent, and a curable resin containing an amino resin; and a fiber member that is in contact with the rubber layer. 1. A power transmission belt comprising a rubber layer and a fiber member being in contact with the rubber layer , a rubber component comprising an ethylene-α-olefin elastomer,', 'a filler comprising a silica,', 'a vulcanizing agent comprising a sulfur vulcanizing agent, and', 'a curable resin comprising an amino resin., 'wherein the rubber layer is formed of a vulcanizate of a rubber composition comprising2. The power transmission belt according to claim 1 ,wherein the amino resin comprises a melamine resin.3. The power transmission belt according to claim 1 ,wherein the filler further comprises a carbon black.4. The power transmission belt according to claim 1 ,wherein the ratio of the amino resin is from 10 to 50 parts by mass with respect to 100 parts by mass of silica.5. The power transmission belt according to claim 3 ,wherein the ratio of the silica is from 10 to 150 parts by mass with respect to 100 parts by mass of carbon black.6. The power transmission belt according to claim 3 , wherein the silica is contained in an amount of from 5 to 30 parts by mass and the carbon black is contained in an amount of from 10 to 100 parts by mass claim 3 , with respect to 100 parts by mass of the rubber component.7. The power transmission belt according to claim 1 ,wherein the sulfur vulcanizing agent is sulfur.8. The power transmission belt according to claim 1 ,wherein the curable resin comprises substantially no resorcinol resin.9. The power transmission belt according to claim 1 ,wherein the vulcanizing agent comprises substantially no ...

Toothed Belt Driving Device for Bicycle

The present invention relates to a toothed belt driving device for bicycle, in which, in drive state, the pulley groove portion of a driven pulley is in surface contact with a portion of a surface of the belt tooth portion, this portion in surface contact is present in a range positioned closer to a tooth root portion than a reference circle, the maximum value of the shortest distance between the pulley groove portion of the driven pulley and the surface of the belt tooth portion opposite to the traveling direction of the belt is 10% or more and 18% or less of the tooth pitch, a groove depth of the driven pulley is greater than the tooth height of the belt tooth portion, and the difference therebetween is 5% or more of the tooth height. 1. A toothed belt driving device for bicycle comprising:a toothed belt that is formed of a rubbery elastic body into which a tension member is embedded along a belt longitudinal direction, and that has a plurality of convex-shaped belt tooth portions disposed with a predetermined tooth pitch along the belt longitudinal direction;a drive pulley having pulley groove portions that are formed on an outer circumferential surface thereof so as to mesh with the belt tooth portions; anda driven pulley having pulley groove portions that are formed on an outer circumferential surface thereof so as to mesh with the belt tooth portions;whereinin a cross-section perpendicular to a width direction of the belt, the belt tooth portion is formed to be substantially symmetrical to a straight line in a thickness direction of the belt,in a drive state, the pulley groove portion of the drive pulley is in surface contact with a portion of a surface of the belt tooth portion, which is positioned opposite to a traveling direction of the belt, and the pulley groove portion of the driven pulley is in surface contact with a portion of a surface of the belt tooth portion, which is positioned toward the traveling direction of the belt,the portion of the belt ...

ELECTRIC POWER STEERING DEVICE

An electric power steering device includes a motor, a drive pulley that is connected to the output shaft of the motor and includes helical teeth, a driven pulley that is arranged coaxially with a rack shaft and includes helical teeth, and a belt that is wound around these pulleys and includes helical teeth meshing with the respective helical teeth of both pulleys. Internal teeth on a belt each are formed to have a tooth thickness that is reduced toward both ends thereof along the width direction of the belt. 1. An electric power steering device comprising:a steered shaft that changes a steering angle of steered wheels responding to steering operation;a motor that applies assist force to the steered shaft;a drive pulley that includes helical teeth and is connected to an output shaft of the motor;a driven pulley that includes helical teeth and is arranged coaxially with the steered shaft; anda belt that includes helical teeth meshing with the helical teeth of a set of the drive pulley and the driven pulley, and is wound around the set of the pulleys, whereinthe helical teeth of at least one of the pulleys and the belt each have a tooth thickness that is reduced from a center toward both ends of a helical tooth in the width direction of the pulleys or the belt.2. The electric power steering device according to claim 1 , whereinthe helical teeth of at least one of the pulleys and the belt each have a portion where the tooth thickness is kept constant between both ends of the helical tooth in the width direction.3. The electric power steering device according to claim 1 , whereinthe helical teeth of at least one of the pulleys and the belt are the helical teeth of the belt.4. The electric power steering device according to claim 1 , whereinthe helical teeth of at least one of the pulleys and the belt are the helical teeth of at least one of the pulleys.5. The electric power steering device according to claim 1 , whereinthe helical teeth of at least one of the pulleys and ...

Method for Manufacturing Drive Belts

The invention is used to manufacture a drive belt. To this end, mould core () and outer mould () of a casting tool (G) are provided. In the case of mould core () inserted into the outer mould (), a cavity () is formed in the casting tool (G). The mould core () or the outer mould () are provided with a geometry () to be represented on the drive belt. Said geometry has projections () protruding from a base surface () and arranged spaced apart from one another, which have a head surface () and lateral surfaces () which each delimit a gap () of the geometry () with in each case a base surface () present between two adjacent projections (). A textile layer () is laid on the geometry (), which is supported on the head surfaces () and in each case extends with a section () over the gaps (). A tension member () is laid on the textile layer () such that the textile layer () is fixed between the tension member () and the respective head surface (). At the same time, an intermediate space () between the section () of the textile layer () extending over the gap () and the section () of the tension member () spanning the gap () is delimited in each gap (). The cavity () and the intermediate spaces () are filled with a castable elastomer base material (B) after inserting the thus provided mould core () into the outer mould (). As a result, the sections () of the textile layer () are pressed by the elastomer base material (B) against the lateral surfaces () of the projections () and the assigned base surface () of the respective gap (). The drive belt sleeve obtained can be demoulded after the base material has solidified. 1. A method for manufacturing a drive belt comprising the following work steps:a) Providing a mould core and an outer mould of a casting tool, wherein the mould core is provided to be inserted into the outer mould such that a cavity representing the mould of the drive belt to be manufactured is formed between the outer mould and the mould core sitting inside it ...

RUBBER-REINFORCING CORD AND RUBBER PRODUCT INCLUDING SAME

A rubber-reinforcing cord () of the present invention includes at least one strand. The strand includes at least one filament bundle and a coating provided to cover at least a portion of a surface of the filament bundle. The coating includes a rubber component including at least one selected from the group consisting of carboxyl-modified nitrile rubber and carboxyl-modified hydrogenated nitrile rubber, an isocyanate compound, a bismaleimide compound, carbon black, and a rubber-modified epoxy resin. In the coating, the content of the isocyanate compound is 10 to 50 parts by mass, the content of the bismaleimide compound is 5 to 25 parts by mass, the content of the carbon black is 2 to 18 parts by mass, and the content of the rubber-modified epoxy resin is 5 to 30 parts by mass, with respect to 100 parts by mass of the rubber component. 1. A rubber-reinforcing cord for reinforcing a rubber product , the rubber-reinforcing cord comprising: at least one strand , whereinthe strand comprises at least one filament bundle and a coating provided to cover at least a portion of a surface of the filament bundle,the coating comprises a rubber component comprising at least one selected from the group consisting of carboxyl-modified nitrile rubber and carboxyl-modified hydrogenated nitrile rubber, an isocyanate compound, a bismaleimide compound, carbon black, and a rubber-modified epoxy resin, andin the coating, the content of the isocyanate compound is 10 to 50 parts by mass, the content of the bismaleimide compound is 5 to 25 parts by mass, the content of the carbon black is 2 to 18 parts by mass, and the content of the rubber-modified epoxy resin is 5 to 30 parts by mass, with respect to 100 parts by mass of the rubber component.2. The rubber-reinforcing cord according to claim 1 , wherein the rubber-modified epoxy resin is a nitrile rubber-modified epoxy resin.3. The rubber-reinforcing cord according to claim 1 , comprising no other coating than the coating.4. The rubber- ...

Drive means for conveyor belts, in particular of agricultural machines, and method for the production thereof

In a first aspect, the present invention relates to a flat belt as an endless traction means suitable for conveyor belts, wherein the flat belt has no fabric insert in the force transmission region and optionally no fabric insert in the back of the belt. In a further aspect, a method for producing a flat belt as an endless traction means is provided. This method is a multistage method involving the steps of forming a flat belt with a main body and endless tension member elements, present therein, by means of a rotary vulcanization process, and subsequently forming at least a part of the force transmission region on the flat belt obtained by the rotary vulcanization process. Furthermore, drive means for conveyor belts, comprising a flat belt according to the invention are provided, and agricultural machines having a conveying device, designed to convey agricultural harvested material, having a flat belt or conveyor belt according to the invention.

SYSTEM AND METHOD FOR MANUFACTURING FLIGHTLESS, MONOLITHIC BELT

A method for making a reinforced monolithic belt () comprises: —extruding belt material () onto a rotating molding wheel (); —passing the belt material () into a mold cavity () formed by an endless band () engaging on a peripheral portion of the molding wheel (); and —laying a coated reinforcing cord () onto the molding wheel () before the mold cavity (). This method allows producing a reinforced monolithic belt with no flights. 1. A method for making a reinforced monolithic belt , comprising:extruding belt material onto a rotating flightless molding wheel;passing the belt material into a mold cavity formed by an endless band engaging on a peripheral portion of the molding wheel; andlaying a reinforcing cord coated with TPE onto the molding wheel before the mold cavity.2. The method according to claim 1 , comprising:passing the belt material under a spreader, by rotating the molding wheel, to spread the belt material onto the molding wheel before passing the belt material into the mold cavity.3. The method according to claim 1 , wherein the coated reinforcing cord has a coating compatible with the belt material such that the coating and the belt material form a bond.4. The method according to claim 1 , wherein the coated reinforcing cord has a coating which is the same material as the belt material.5. The method according to claim 1 , wherein the coated reinforcing cord is laid onto the molding wheel before the belt material is extruded onto the molding wheel.6. The method according to claim 1 , wherein the coated reinforcing cord is laid onto the molding wheel after the belt material is extruded onto the molding wheel.7. A system for making a reinforced monolithic belt claim 1 , comprising:a flightless molding wheel, configured to rotate;an endless band configured to cooperate with a peripheral portion of the molding wheel to form a mold cavity, wherein the mold cavity includes an entrance for introducing belt material into the mold cavity and an exit from which a ...

TOOTHED BELT TRANSMISSION

The present invention provides a toothed belt transmission that reduces noise and vibration resulting from the engagement between a toothed belt and a toothed pulley, and that improves the durability of the toothed belt. The toothed belt transmission in which a tooth height of a toothed belt and a tooth height of a toothed pulley are set so that when the toothed belt and the toothed pulley start engaging with each other, tooth tip parts of the toothed belt and tooth bottom parts of the toothed pulley contact each other before tooth bottom parts of the toothed belt and tooth tip parts of the toothed pulley contact each other. 1. A toothed belt transmission transmitting rotation , with a toothed belt having belt teeth and a toothed pulley having pulley teeth being engaged with each other ,a tooth height of the toothed belt and a tooth height of the toothed pulley being set so that when the toothed belt and the toothed pulley start engaging with each other, tooth tip parts of the toothed belt and tooth bottom parts of the toothed pulley contact each other before tooth bottom parts of the toothed belt and tooth tip parts of the toothed pulley contact each other.2. The toothed belt transmission according to claim 1 , whereinthe tooth height of the toothed belt is set to be greater than the tooth height of the toothed pulley.3. The toothed belt transmission according to claim 1 , whereintooth surfaces of the belt teeth have tooth root-side concave curved parts respectively,tooth surfaces of the pulley teeth have tooth tip-side convex curved parts respectively that face the tooth root-side concave curved parts when the toothed belt and the toothed pulley engage with each other, whereina curvature radius of the tooth root-side concave curved parts of the belt teeth is set to be greater than or equal to a curvature radius of the tooth tip-side convex curved parts of the pulley teeth.4. The toothed belt transmission according to claim 1 , whereina pressure angle of tooth ...

TRACTION MECHANISM WITH INTERNAL TOOTHING AND EXTERNAL TOOTHING AND TRANSMISSION WITH TRACTION MECHANISM

Toothed belt with an internal toothing and an external toothing and transmission with such a toothed belt. Tooth crests of the internal toothing comprise a rounded region with a cross section in the shape of a segment of a circle, and tooth crests of the external toothing comprise a rounded region with a cross section in the shape of a segment of a circle. A region between two adjacent tooth crests of the internal toothing is at least as wide as a tooth width of teeth of the internal toothing, and a region between two adjacent tooth crests of the external toothing is at least as wide as a tooth width of teeth of the external toothing. 1. A toothed belt comprising:an internal toothing; andan external toothing;wherein tooth crests of the internal toothing comprise a rounded region with a cross section in the shape of a segment of a circle; andwherein tooth crests of the external toothing comprise a rounded region with a cross section in the shape of a segment of a circle, andwherein a region between two adjacent tooth crests of the internal toothing is at least as wide as a tooth width of teeth of the internal toothing, andwherein a region between two adjacent tooth crests of the external toothing is at least as wide as a tooth width of teeth of the external toothing.2. The toothed belt according to claim 1 , wherein the tooth crests of the internal toothing are arranged radially opposite the tooth crests of the external toothing.3. The toothed belt according to claim 1 , wherein the tooth crests of the internal toothing are arranged radially opposite the tooth bases of the external toothing.4. The toothed belt according to claim 1 , wherein the tooth bases of the external toothing and the tooth bases of the internal toothing are shaped as flat tooth bases claim 1 , which correspond to a section of a vertical circular cylinder.5. The toothed belt according to claim 1 , wherein the toothed belt comprises a constant thickness claim 1 , and wherein the internal toothing ...

V-Ribbed Belt And Method For Manufacturing Same

A V-ribbed belt that includes a ribbed surface covered with fabric is provided. The fabric is stretchable in two predetermined directions. A method for manufacturing the V-ribbed belt is also provided. The method includes placing a belt matrix about a mandrel, placing a fabric about the external circumference of the belt matrix which wraps around the mandrel, placing the mandrel inside a shell having a plurality of grooves on the internal circumference, expanding the belt matrix and the fabric toward the internal circumference of the shell and thus pressing the fabric onto the internal circumference having the multi-ribbed structure, and curing the belt matrix with the fabric. The fabric is stretchable to accommodate itself to the multi-ribbed structure. 1. A V-ribbed belt: , comprising a ribbed surface covered with fabric , said fabric being stretchable in two predetermined directions;wherein said fabric comprises elastic yarn and at least one type of non-elastic yarn, said non-elastic yarn comprises cellulose-based fiber or yarn.2. (canceled)3. The V-ribbed belt according to claim 1 , wherein said elastic yarn includes polyurethane.4. (canceled)5. The V-ribbed belt according to or claim 1 , wherein said non-elastic yarn comprises non-cellulose-based fiber or yarn.6. The V-ribbed belt according to claim 5 , wherein said non-elastic yarn comprises a blend of cellulose-based fiber or yarn and non-cellulose-based fiber or yarn.7. The V-ribbed belt according to claim 6 , wherein a blend of the cellulose-based fiber or yarn and the non-cellulose-based fiber or yarn is made either by blending two types of fibers in yarn spun or twist or by feeding different types of yarns during the fabric manufacturing process.8. The V-ribbed belt according to any one of or claim 6 , wherein said cellulose-based fiber or yarn includes:natural fiber including cotton, linen, jute, hemp, abaca, and bamboo;man-made fiber including rayon and acetate;and combinations thereof.9. The V-ribbed ...

Warp stretch fabric and method

A warp-directional stretch fabric that defines two right faces and is formed from warp yarns defined by a nylon and fill yarns defined by an aramid. The fabric can be incorporated into a toothed belt, for example a transmission belt, to produce a belt that has enhanced structural and resistance capabilities while capable of being produced at a lower cost than prior art belts. A method of producing an improved toothed belt including the fabric is also provided.

Electrically Conductive Power Transmission Belt

A belt made up of an elastomeric belt body, an electrically conductive tensile cord such as carbon fiber cord in a cord layer reinforcing the belt body, an outer layer of electrically conductive thermoplastic material such as polypropylene film, and an electrically conductive fabric layer residing between the tensile cord layer and the outer layer and providing electrical continuity between the outer layer and the tensile cord. An electrically conductive thread may be woven in the fabric and may present at both surfaces of the fabric and contact both the outer layer and the tensile cord to provide the electrical continuity there between. 1. A belt comprising an elastomeric belt body , an electrically conductive tensile cord in a cord layer reinforcing the belt body , an outer layer of electrically conductive thermoplastic material , and an electrically conductive fabric layer residing between the tensile cord layer and the outer layer and providing electrical continuity between the outer layer and the tensile cord.2. The belt of wherein the electrically conductive fabric layer comprises a fabric comprising an electrically conductive thread which presents at both surfaces of said fabric and contacts both the outer layer and the tensile cord thereby providing the electrical continuity there between.3. The belt of wherein the electrically conductive fabric layer comprises a fabric and a conductive impregnating coating which presents at both surfaces of said fabric and contacts both the outer layer and the tensile cord thereby providing the electrical continuity there between.4. The belt of wherein the elastomeric belt body comprises polyurethane.5. The belt of wherein the tensile cord comprises carbon fiber.6. The belt of wherein the conductive thread comprises conductive metal-coated fiber.7. The belt of wherein the metal coating comprises silver.8. The belt of wherein the metal-coated fiber is silver-coated polyamide fiber.9. The belt of wherein the conductive thread ...

Frictional Power Transmission Belt and Process for Producing Same

The present invention relates to a frictional power transmission belt containing an extensible layer forming a belt back surface, a compressive rubber layer formed on one surface of the extensible layer and frictionally engaging at the lateral surface thereof with pulleys, and a tension member embedded between the extensible layer and the compressive rubber layer along the belt length direction, in which a surface of at least a part of the compressive rubber layer to be in contact with pulleys is coated with a fiber/resin mixture layer that contains a resin component and heat-resistant fibers having a softening point or a melting point higher than a vulcanization temperature in a mixed state, and the heat-resistant fibers contain a fiber embedded so as to extend from the fiber/resin mixture layer to the compressive rubber layer. 1. A frictional power transmission belt comprising an extensible layer forming a belt back surface , a compressive rubber layer formed on one surface of the extensible layer and frictionally engaging at the lateral surface thereof with pulleys , and a tension member embedded between the extensible layer and the compressive rubber layer along a belt length direction , whereina surface of at least a part of the compressive rubber layer to be in contact with pulleys is coated with a fiber/resin mixture layer that comprises a resin component and heat-resistant fibers having a softening point or a melting point higher than a vulcanization temperature in a mixed state, and the heat-resistant fibers contain a fiber embedded so as to extend from the fiber/resin mixture layer to the compressive rubber layer.2. The frictional power transmission belt according to claim 1 , wherein the heat-resistant fiber embedded in the compressive rubber layer is attached with a resin component on at least a part of a surface thereof.3. The frictional power transmission belt according to claim 1 , wherein the heat-resistant fiber embedded in the compressive rubber ...

Power-Transmitting Friction Belt and Method for Manufacturing Same

The present invention relates to a frictional power transmission belt () having a frictional power transmission surface in which the frictional power transmission surface is covered with a fibrous member () at least containing water absorptive fibers and an inorganic powder () exists in at least a surface of the fibrous member. 1. A frictional power transmission belt having a frictional power transmission surface whereinthe frictional power transmission surface is covered with a fibrous member at least containing water absorptive fibers, andan inorganic powder exists in at least a surface of the fibrous member.2. The frictional power transmission belt according to claim 1 , wherein the water absorptive fibers comprise cellulosic fibers.3. The frictional power transmission belt according to claim 1 , wherein the cellulosic fibers comprise cotton fibers.4. The frictional power transmission belt according to claim 1 , whereinthe fibrous member comprises the water absorptive fibers as first fibers, and second fibers.5. The frictional power transmission belt according to claim 4 , whereinthe second fibers comprise stretchable fibers that are stretchable in at least the axial direction of the fibers.6. The frictional power transmission belt according to claim 5 , whereinthe stretchable fibers comprise at least one type of fibers selected from polyurethane fibers and crimp fibers, andthe fibrous member comprising composite yarns containing the stretchable fibers.7. The frictional power transmission belt according to claim 6 , wherein the composite yarns are polyester composite bulky-textured yarns of conjugated polytrimethylene terephthalate and polyethylene terephthalate.8. The frictional power transmission belt according to claim 1 , whereinthe fibrous member comprises water absorptive fibers in a ratio of from 50 to 90% by mass relative to all the fibers therein.9. The frictional power transmission belt according to claim 1 , whereinthe fibrous member is formed of a ...

BELT HAVING A MULTILAYER IMPREGNATED TEXTILE OVERLAY

The invention relates to a power transmission belt, having a base made of polyurethane () and a textile overlay () and comprising a first coating of a first thermoplastic material () on the surface () of the textile overlay (), which first coating forms an impregnation, has a melting temperature from 80° C. to approximately 145° C., and penetrates at least partially into the textile, and comprising a second coating () of a second thermoplastic material on the first coating, which second coating has a higher melting point. The coatings can be applied successively to the textile overlay () before the casting of the polyurethane or can be overlaid as individual films or as multi-layer film and applied to the textile overlay by heat and pressure. The coating acts to reduce abrasion and prevents the through passage of the belt polyurethane. 1. A power transmission belt having a substructure of polyurethane and a power transmission zone constructed thereon and also a textile overlay in contact with the power transmission zone , wherein the belt possesses a first coating of a first thermoplastic material having a melting temperature of from 80° C. to about 145° C. on the exteriorally lying surface of the textile overlay , the first coating of a first thermoplastic material having a melting temperature of from 80° C. to about 145° C. having at least partly penetrated into the textile to form an impregnation therein , and possesses on the first coating a second coating of a second thermoplastic material , wherein the melting temperature of the second thermoplastic material is higher than that of the first thermoplastic material.2. The power transmission belt as claimed in claim 1 , wherein a friction-reducing additive modifies the first and/or second coatings.3. The power transmission belt as claimed in claim 1 , wherein the first thermoplastic material is a copolyamide.4. The power transmission belt as claimed in claim 1 , wherein between the first coating and the second ...

DRIVE BELT FOR A PEOPLE CONVEYOR

A drive belt segment () for forming a drive belt (), in particular an endless drive belt () configured to be employed in a people conveyor (), has two opposing ends and extends in a longitudinal direction between the two opposing ends. Each end is provided with a connector () which is configured for being connected to a corresponding connector () of the same or another drive belt segment () for forming an endless drive belt (). 12220201. Drive belt segment () for forming a drive belt () , in particular an endless drive belt () configured to be employed in a people conveyor () ,{'b': '22', 'the drive belt segment () having two opposing ends and extending in a longitudinal direction between the two opposing ends,'}{'b': 30', '30', '22, 'wherein each end is provided with a connector () configured for being connected to a corresponding connector () of the same or another drive belt segment ().'}222413030. Drive belt segment () according to comprising at least one cord () extending in the longitudinal direction and being mechanically connected with at least one of the connectors () claim 1 , in particular with both connectors ().3225241. Drive belt segment () according to claim 2 , wherein a sleeve () is mounted to at least one end of the at least one cord ().4224122. Drive belt segment () according to claim 2 , wherein the at least one cord () extends linearly between the two opposing ends of the drive belt segment ().522413030. Drive belt segment () according to claim 2 , wherein the at least one cord () extends through the at least one connector () claim 2 , in particular forming a loop extending at least partially through the at least one connector ().622413022. Drive belt segment () according to claim 5 , wherein the at least one cord () extends multiply through at least one of the connectors () claim 5 , in particular forming a plurality of loops within the drive belt segment ().7224125. Drive belt segment () according to claim 2 , wherein the at least one cord () ...

Water based urethane as predip for carbon fiber cord

Methods of manufacturing a belt include laying up a first elastomeric layer of a belt build on a mandrel, laying up a tensile reinforcement layer on the first elastomeric layer, where the tensile reinforcement layer contains cords coated with a water based urethane compound, and laying up a second elastomeric layer on the first elastomeric layer and the tensile reinforcement layer. The belt build may be cured in a profile-forming mold, and afterward, cut to a predetermined belt width and/or length.

SYNCHRONOUS BELT WITH STIFFENED TEETH

A synchronous belt with a tensile member layer having a tensile member embedded in an elastomeric body; a toothed surface with a plurality of regularly spaced, transverse teeth protruding from the body; and a jacket covering the toothed surface; wherein the teeth comprise a plurality of fabric insert layers that increase the stiffness of the tooth, the insert layers separated from each other by layers of an elastomer composition. The layers may be oriented parallel to the tensile member layer, perpendicular to the tensile member, or following the contour of the tooth. The layers may be a single piece of fabric folded into layers, or separate pieces of fabric. 1. A synchronous belt comprising:a tensile member layer having a tensile member embedded in an elastomeric body;a toothed surface comprising a plurality of regularly spaced, transverse teeth protruding from the body and lands there between; anda jacket covering the toothed surface;wherein the teeth comprise a plurality of fabric insert layers that increase the stiffness of the tooth, the insert layers separated from each other by layers of an elastomer composition.2. The synchronous belt of wherein the plurality of fabric insert layers are separate pieces of fabric.3. The synchronous belt of wherein the plurality of fabric insert layers comprise a U-shape that is generally parallel to the contour of the tooth.4. The synchronous belt of wherein said plurality of fabric insert layers are planar and oriented generally parallel to the tensile member layer.5. The synchronous belt of wherein said plurality of fabric insert layers are planar and oriented generally perpendicular to the tensile member or inclined up to as much as the tooth flank surface with respect to the tensile member.6. The synchronous belt of wherein the plurality of fabric insert layers comprise a single piece of fabric.7. The synchronous belt of wherein the plurality of fabric insert layers are folded into a U-shape that is generally parallel to ...

SYNCHRONOUS BELT WITH UNIDIRECTIONAL FABRIC REINFORCEMENT

A synchronous belt having a tensile member layer with a tensile member embedded in an elastomeric body, a toothed surface with a plurality of regularly spaced, transverse teeth protruding from the body, a jacket covering the toothed surface, and a unidirectional fabric layer suspended in the belt between the jacket and the tensile member layer and following the approximate contour of the jacket. 1. A synchronous belt comprising:a tensile member layer having a tensile member embedded in an elastomeric body;a toothed surface comprising a plurality of regularly spaced, transverse teeth protruding from the body;a jacket covering the toothed surface; anda unidirectional fabric layer suspended in the belt between the jacket and the tensile member layer and following the approximate contour of the jacket.2. The synchronous belt of further comprising a cushion layer of elastomeric material residing between said jacket and said unidirectional fabric layer.3. The synchronous belt of wherein said unidirectional fabric layer comprises unidirectional filaments of carbon fiber.4. The synchronous belt of wherein the unidirectional fabric is treated with an adhesive composition.5. The synchronous belt of wherein the adhesive composition comprises a primer material claim 4 , a polyelectrolyte claim 4 , and a curative.6. A synchronous belt comprising:a tensile member layer having a tensile member embedded in an elastomeric body;a toothed surface comprising a plurality of regularly spaced, transverse teeth protruding from the body;a jacket covering the toothed surface; anda fabric comprising unidirectional carbon fibers suspended in the belt between the jacket and the tensile member layer and with said carbon fibers following the approximate contour of the jacket oriented generally in the longitudinal direction of the belt.7. A method of making a synchronous belt comprising:preforming a jacket to fit a grooved mold having grooves matching a desired tooth profile for said belt; ...

FRICTION TRANSMISSION BELT AND MANUFACTURING METHOD THEREFOR

A friction transmission belt has a rubber layer forming a pulley contacting portion. The rubber layer is made of a rubber composition containing a crosslinked rubber component and crosslinked polyolefin particles. Examples of the crosslinked polyolefin particles can contain ultrahigh molecular weight polyolefin particles having an average molecular weight of 500,000 or more. 1. A friction transmission belt comprising a rubber layer forming a pulley contacting portion , whereinthe rubber layer is made of a rubber composition containing a crosslinked rubber component and crosslinked polyolefin particles.2. The friction transmission belt of claim 1 , whereinthe crosslinked polyolefin particles contain ultrahigh molecular weight polyolefin particles having an average molecular weight of 500,000 or more and crosslinked.3. The friction transmission belt of claim 1 , whereinthe crosslinked polyolefin particles contain crosslinked polyethylene particles.4. The friction transmission belt of claim 1 , whereinthe crosslinked polyolefin particles contain crosslinked polyolefin hollow particles having hollow portions.5. The friction transmission belt of claim 1 , whereina content of the crosslinked polyolefin particles in the rubber composition is 20 parts by mass or more and 100 parts by mass or less with respect to 100 parts by mass of the rubber component.6. The friction transmission belt of claim 1 , whereinthe rubber composition further contains uncrosslinked polyolefin particles.7. The friction transmission belt of claim 1 , further comprisinga core rubber portion covered with the rubber layer.8. The friction transmission belt of claim 7 , whereinthe core rubber portion is made of a rubber composition in which a content of the crosslinked polyolefin particles with respect to 100 parts by mass of a rubber component is smaller than a content of the crosslinked polyolefin particles with respect to 100 parts by mass of the rubber component of the rubber layer, or a rubber ...

BELT DRIVE COMPRISING DRIVING ELEMENTS

A toothed-belt drive, includes a toothed belt, at least one driving element attached to the toothed belt, and a toothed disk with tooth recesses for driving teeth of the toothed belt and driving element recesses for driving the at least one driving element. The driving element forms a connecting element that can be connected to an element to be driven. 1. A toothed-belt drive comprising:a toothed belt,at least one driving element attached to the toothed belt,a toothed disk with a plurality of tooth recesses for driving teeth of the toothed belt and a plurality of driving element recesses for driving the at least one driving element,wherein the driving element forms a connecting element that can be connected to an element to be driven.2. The toothed-belt drive according to claim 1 , wherein the driving element is connected to the toothed belt via a clamping connection.3. The toothed-belt drive according to claim 2 , wherein the driving element has a two-part configuration and has a lower part disposed on an inner face of the toothed belt in an attached state claim 2 , and a top part disposed on an outer face of the toothed belt claim 2 , which can be connected to each other in such a way that the lower part and the top part clamp the toothed belt between them.4. The toothed-belt drive according to claim 3 , wherein the top part and the lower part are screwed together in the attached state.5. The toothed-belt drive according to claim 2 , wherein the driving element has a length L extending parallel to a width B of the toothed belt in an attached state claim 2 , which exceeds the width B of the toothed belt claim 2 , wherein the lower part and the top part are connected to each other via connecting means extending laterally next to the toothed belt.6. The toothed-belt drive according to claim 1 , wherein the driving element has claim 1 , as a connecting element claim 1 , a cylindrical projecting portion configured as an axle stub.7. The toothed-belt drive according to ...

BELT DRIVING APPARATUS

A belt driving apparatus includes a driving pulley, a driven pulley and an endless toothed belt. Each of the driving pulley and the driven pulley includes an outer circumference surface provided with a plurality of teeth. The toothed belt, wound around the driving pulley and the first driven pulley, includes an inner surface provided with a plurality of teeth arranged to mesh with the teeth of the driving pulley and the first driven pulley. The belt driving apparatus also includes an idler pulley having a belt contact surface coming into contact with the outer surface of the toothed belt. As viewed along the width direction of the belt contact surface, the idler pulley includes a center portion and two end portions sandwiching the center portion. The center portion of the idler pulley is greater in diameter than each of the two end portions. 17-. (canceled)8. A transfer robot comprising:a belt driving apparatus; anda hand attached to the belt driving apparatus;the belt driving apparatus includes:a driving pulley including an outer circumference surface provided with a plurality of teeth;a first driven pulley including an outer circumference surface provided with a plurality of teeth;a second driven pulley including an outer circumference surface provided with a plurality of teeth;an endless toothed belt wound around the driving pulley, the first driven pulley and the second driven pulley, the toothed belt including an inner surface provided with a plurality of teeth meshing with the plurality of teeth of each of the driving pulley, the first driven pulley and the second driven pulley; andfirst and second idler pulleys each including a belt contact surface in contact with a flat outer surface of the toothed belt, each of the first idler pulley and the second idler pulley including, along a width direction of the belt contact surface, a large-diameter portion and two small-diameter portions sandwiching the large-diameter portion, the large-diameter portion being ...

Electrically Conductive Power Transmission Belt

A belt made up of an elastomeric belt body, an electrically conductive tensile cord such as carbon fiber cord in a cord layer reinforcing the belt body, an outer layer of electrically conductive thermoplastic material such as polypropylene film, and an electrically conductive fabric layer residing between the tensile cord layer and the outer layer and providing electrical continuity between the outer layer and the tensile cord. An electrically conductive thread may be woven in the fabric and may present at both surfaces of the fabric and contact both the outer layer and the tensile cord to provide the electrical continuity there between. 1. A power transmission belt comprising an elastomeric belt body , an electrically conductive tensile cord in a cord layer reinforcing the belt body , an outer layer of electrically conductive thermoplastic film , and an electrically conductive fabric layer residing between the tensile cord layer and the outer layer and providing electrical continuity between the outer layer and the tensile cord.2. The belt of wherein the electrically conductive fabric layer comprises a fabric and a conductive impregnating coating which presents at both surfaces of said fabric and contacts both the outer layer and the tensile cord thereby providing the electrical continuity there between.3. The belt of wherein the elastomeric belt body comprises rubber.4. The belt of wherein the tensile cord comprises carbon fiber.5. The belt of wherein the electrically conductive fabric layer comprises a fabric comprising an electrically conductive thread which presents at both surfaces of said fabric and contacts both the outer layer and the tensile cord thereby providing the electrical continuity there between.6. The belt of wherein the elastomeric belt body comprises rubber.7. The belt of wherein the tensile cord comprises carbon fiber.8. The belt of wherein the conductive thread comprises conductive metal-coated fiber.9. The belt of wherein the metal coating ...

Rubber crawler, rubber crawler mold, and method of producing rubber crawler

A rubber crawler ( 10 ) includes an endless rubber elastic body and protruding lugs ( 11 ) formed on the outer peripheral surface at a predetermined pitch in the crawler peripheral direction. Minute protrusions ( 14 ) extending in a direction intersecting the crawler width direction when viewed from the crawler peripheral direction are formed on a first side surface ( 12 a ) and a second side surface ( 12 b ) of the lugs ( 11 ), the side surfaces ( 12 a, 12 b ) facing the crawler peripheral direction.

Electrically conductive belt

A conductive anti-static drive belt includes a first or drive surface having a plurality of tooth formations therein with a land portion formed between each adjacent pair of teeth. The drive surface is provided by a fabric layer having electrically conductive properties. The fabric layer has an interior surface opposite the drive surface. A second surface is provided opposite the drive surface. The second surface is provided by a polymeric body that conforms to and is mated with the interior surface of the fabric layer. At least one tensile reinforcement member is at least partially encased in the polymeric body and extends along the interior surface of the fabric C layer at each land portion throughout a loop formed by the belt. A conductive strand is at least partially encased in the polymeric body and extends along the interior surface of the fabric layer at each land portion.

TOOTHED BELT DRIVE

Toothed belt drive having one toothed belt and at least two, preferably helically geared, toothed pulleys, wherein the toothed belt wraps the toothed pulleys over a part-region of the circumference of the latter and the teeth of the toothed belt mesh in the tooth gaps of the toothed pulleys, wherein the air gap Eor Ethat relates to the nominal pitch P and results from the difference between the width es of the tooth gaps of the respective toothed pulley and the width eof the teeth of the toothed belt is configured at the mean height of the teeth, depending on the tooth count zof the toothed pulleys and on the tooth count z of the toothed pulleys, or on the tooth counts zof the smaller toothed pulley and on zof the larger toothed pulley, respectively. 2. The toothed belt drive of claim 1 , wherein one of said at least two toothed pulleys has a pitch circle diameter of d≤45 mm.3. The toothed belt drive of claim 1 , wherein one of said at least two toothed pulleys has a tooth count between 20 and 60.4. The toothed belt drive of claim 1 , wherein said at least two toothed pulleys are helically geared.6. The toothed belt drive of claim 5 , wherein said smaller toothed pulley has a pitch circle diameter of d≤45 mm.7. The toothed belt drive of claim 5 , wherein said smaller toothed pulley has a tooth count between 20 and 60.8. The toothed belt drive of claim 5 , wherein said at least two toothed pulleys are helically geared.10. The toothed pulley of claim 9 , wherein the toothed belt drive is of an electric steering gear. This application is a continuation application of international patent application PCT/EP2016/081637, filed Dec. 19, 2016, designating the United States and claiming priority from German application 10 2016 001 972.7, filed Feb. 22, 2016, and the entire content of both applications is incorporated herein by reference.The invention relates to a toothed belt drive having one toothed belt and at least two, preferably helically geared, toothed pulleys, ...

TRANSMISSION ELEMENT AND TRANSMISSION PROVIDED WITH SUCH A TRANSMISSION ELEMENT

A transmission element for a transmission such as a continuously variable transmission, including an elongate flexible endless carrier element provided with a number of receiving spaces with an opening and with a passage extending through the number of receiving spaces in the longitudinal direction of the carrier element, a number of engaging elements which are each received in a receiving space for movement between an active position and a passive position and which in the active position protrude further inward than in the passive position and at least out of the opening of this receiving space so as to be able to engage in the active position with a pulley of the transmission, and a spring element for providing resistance for each of the number of engaging elements during movement from the active position in the direction of the passive position. 2. The transmission element according to claim 1 , wherein the carrier element is provided at regular pitch in the longitudinal direction thereof with a number of further receiving spaces claim 1 , wherein each of the number of further receiving spaces is provided with a further opening on the inner side of the carrier element facing toward the pulley during use claim 1 , wherein in a transverse direction of the carrier element transversely of the longitudinal direction of the carrier element a receiving space and a further receiving space are provided adjacently of each other in each case claim 1 , wherein each of the number of respective engaging elements is received in a receiving space of the number of receiving spaces and the further receiving space of the number of further receiving spaces provided adjacently thereof.3. The transmission element according to claim 2 , wherein the carrier element has a further passage extending in the carrier element through the number of further receiving spaces in the longitudinal direction of the carrier element claim 2 , and wherein each of the number of engaging elements is ...

METHOD FOR PRODUCING BELT, AND CYLINDRICAL MOLD AND CROSSLINKING APPARATUS USED THEREFOR

A method include: providing a cylindrical mold made of metal, a shaped structure having a cylindrical shape, a rotation mechanism configured to rotatably support the cylindrical mold, and an electromagnetic induction coil configured to heat the cylindrical mold through electromagnetic induction; setting the shaped structure inside the cylindrical mold; and molding a cylindrical belt slab by heating the cylindrical mold by the electromagnetic induction coil, while the cylindrical mold is rotated by the rotation mechanism and the shaped structure is pressurized from inside and pressed against the cylindrical mold. 1. A method for producing a belt , the method comprising:providing a cylindrical mold made of metal, a shaped structure having a cylindrical shape, a rotation mechanism configured to rotatably support the cylindrical mold, and an electromagnetic induction coil configured to heat the cylindrical mold through electromagnetic induction;setting the shaped structure inside the cylindrical mold;disposing the cylindrical mold having the shaped structure set therein on and concentrically with the rotation mechanism; andmolding a cylindrical belt slab by heating the cylindrical mold by the electromagnetic induction coil, while the cylindrical mold is rotated by the rotation mechanism and the shaped structure is pressurized from inside.2. The method of claim 1 , whereinthe electromagnetic induction coil includes a plurality of electromagnetic induction coils.3. The method of claim 2 , whereinthe electromagnetic induction coils heat, in an overlapping manner, at least one identical portion of an outer periphery of the cylindrical mold.4. The method of claim 2 , whereina temperature of an entire outer periphery of the cylindrical mold is adjusted through control of a current or a voltage of each of the electromagnetic induction coils based on information provided by a plurality of temperature sensors arranged around the cylindrical mold.5. The method of claim 1 , ...

METHOD FOR PRODUCING BELT, AND TWO-LAYER BONDING MACHINE

A surface sheet which is to constitute a surface layer and a core sheet which is to constitute a core layer are prepared. A plurality of ridges is formed on the core sheet, and the surface sheet is bonded such that the surface sheet covers the plurality of ridges, thereby forming compression layer-forming portions. 1. A method of producing a belt including a compression layer comprised of a surface layer and a core layer , the surface layer forming a surface portion of the belt , the core layer forming an inner portion , of the belt , having one or a plurality of ridges , the method comprising:preparing a surface sheet which is to constitute the surface layer, a core sheet which is to constitute the core layer, a core-shaping flat roll having a flat surface, and a surface-shaping grooved roll having a plurality of trapezoidal grooves each of which corresponds to the ridge and which are arranged in an axial direction of the surface-shaping grooved roll;forming the plurality of ridges on a surface of the core sheet; andwhile the core-shaping flat roll and the surface-shaping grooved roll are heated such that core-shaping flat roll has a higher temperature than the surface-shaping grooved roll, bonding the surface sheet to the core sheet having the plurality of ridges formed thereon, thereby forming a compression layer-forming portion, the bonding being carried out by passing the surface sheet and the core sheet between the core-shaping flat roll and the surface-shaping grooved roll, wherein the surface sheet is processed to have a shape corresponding to the plurality of ridges when being passed between the rolls.2. The method of claim 1 , whereinthe forming the plurality of ridges is carried out by passing the core sheet between the core-shaping flat roll and a core-shaping grooved roll having a plurality of trapezoidal grooves each of which corresponds to the ridge and which are arranged in an axial direction of the core-shaping grooved roll.3. The method of claim 2 ...

Fabric for Toothed Power Transmission Belt and Belt

A fabric for reinforcing a power transmission belt including fibers of polyarylene sulfide and a belt utilizing the fabric. The fabric may have textured or elastic core wrapped stretch yarns in the longitudinal direction. Longitudinal yarns may include PPS and textured transverse yarns include nylon. Yarns may include blends of high performance fibers and nylon or other fibers. 1. A woven stretch fabric for reinforcing a power transmission belt comprising textured staple fibers of polyarylene sulfide and optionally some textured fibers of polyamide.2. The fabric of comprising warp and weft threads claim 1 , wherein at least one of said warp and weft threads comprises said staple fibers of polyarylene sulfide in the form of a textured staple yarn of poly p-phenylene sulfide fibers.3. The fabric of wherein said poly p-phenylene sulfide fibers are present in the weft and textured to have at least 50% elongation at 2 kg tension claim 2 , and said warp comprises textured polyamide fiber.4. The fabric of wherein said fabric further comprises as said polyamide fiber nylon-66 fibers textured to have from 1 to 20% elongation at 2 kg tension claim 3 , and wherein said fabric has no elastic core thread.5. A power transmission belt having an elastomeric body claim 3 , a tensile member embedded within said body claim 3 , a pulley contact surface claim 3 , and a back surface; comprising on at least one of said surfaces a woven stretch fabric comprising textured staple fibers of polyarylene sulfide and optionally some textured fibers of nylon.6. The belt of in the form of a toothed belt having teeth on said pulley contact surface and with said fabric covering said teeth.7. The belt of wherein said fabric is woven with transverse and longitudinal threads with respect to their orientation in the belt claim 5 , and wherein said transverse threads comprise nylon-66 fibers claim 5 , and said longitudinal threads comprise both textured nylon-66 fibers and said polyarylene sulfide fibers ...

ELEVATOR SYSTEM BELT

A belt for an elevator system includes one or more tension members extending along a belt length, and a jacket at least partially encapsulating the one or more tension members. The jacket defines a traction surface configured to interface with a traction sheave of the elevator system, a back surface opposite the traction surface, and two edge surfaces extending between the traction surface and the back surface. The traction surface includes a convex shaped segment extending at least partially across the traction surface between the two edge surfaces. 1. A belt for an elevator system , comprising:one or more tension members extending along a belt length; and a traction surface configured to interface with a traction sheave of the elevator system;', 'a back surface opposite the traction surface; and', 'two edge surfaces extending between the traction surface and the back surface;', 'wherein the traction surface includes a convex shaped segment extending at least partially across the traction surface between the two edge surfaces., 'a jacket at least partially encapsulating the one or more tension members, the jacket defining2. The belt of claim 1 , wherein the convex shaped segment has one of a non-zero uniform curvature or variable curvature from a first edge surface of the two edge surfaces to a second edge surface of the two edge surfaces.3. The belt of claim 1 , wherein the traction surface includes:a planar first segment extending from a first edge segment of the two edge segments;a second segment abutting the first segment; anda planar third segment abutting the second segment and extending to a second edge surface of the two edge surfaces.4. The belt of claim 3 , wherein the second segment is one of planar or convexly curved.5. The belt of claim 1 , wherein the traction surface includes:a first segment having a convex curvature extending from a first edge segment of the two edge segments;a planar second segment abutting the first segment; anda third segment ...

BELT WITH CORRUGATED MATERIAL

An elevator system includes a hoistway, an elevator car movable along the hoistway, and one or more belts operably connected to the elevator car to propel the elevator car along the hoistway. A belt of the one or more belts includes one or more tension elements extending along a belt length, and a jacket at least partially encapsulating the one or more tension elements. The jacket includes a jacket base formed from a first material and one or more insert layers embedded in the jacket base material. The one or more insert layers have a corrugated shape along the belt length, and are formed from a second material different from the first material. 1. A belt for an elevator system , comprising:one or more tension elements extending along a belt length; and a jacket base; and', 'one or more insert layers embedded in the jacket base, the one or more insert layers having a corrugated shape along the belt length., 'a jacket at least partially encapsulating the one or more tension elements, the jacket including2. The belt of claim 1 , wherein the corrugated shape is one or more of sinusoidal claim 1 , triangular or rectangular.3. The belt of claim 1 , wherein the jacket base is formed from a first material and the insert layer is formed from a second material different from the first material.4. The belt of claim 3 , wherein the second material is non-elastomeric and has a melting temperature that is at least 10° C. higher than the processing temperature required to form the jacket base material.5. The belt of claim 1 , wherein the one or more insert layers contact the one or more tension elements.6. The belt of claim 1 , wherein the one or more insert layers at least partially define an outer surface of the belt.7. The belt of claim 1 , wherein the corrugated shape has a peak to valley height of at least three times a thickness of the insert layer.8. The belt of claim 7 , wherein the corrugated shape has a peak to valley height of at least four times a thickness of the ...

Power transmission belt

A power transmission belt (10) with a good balance of high temperature resistance, good belt durability and low temperature crack resistance. The main belt body portion of the power transmission belt is manufactured from an elastomeric material comprising 100 parts by weight of an at least partially hydrogenated nitrile group-containing copolymer rubber, and from about 0.5 to about 50 parts per hundred weight of said rubber of a fiber reinforcement having a length to diameter ratio of greater than 10:1. The nitrile group-containing copolymer rubber preferably comprises (1) from about 5 to about 40 percent of unsaturated nitrile monomer units, (2) from about 1 to about 80 percent of units of at least one second monomer selected from the group consisting of fluorine-free unsaturated carboxylic acid ester monomer units and fluorine-containing vinyl monomer units, or any monomer possessing the characteristic of lowering the glass transition temperature of the rubber; (3) up to about 20 percent of conjugated diene monomer units and (4) the balance being hydrogenated conjugated diene monomer units, preferably wherein the sum of the contents of the monomer units (1) and (2) is from about 30 to 90 percent by weight and the sum of the contents of the monomer units (3) and (4) is from about 10 to about 70 percent by weight. The use of the fiber reinforcement in the nitrile group-containing, highly saturated copolymer rubber provides substantially improved low temperature crack resistance while improving the high temperature resistance of the belt.

Toothed belt comprising a tooth support made of fabric

Disclosed is an HNBR-based toothed rubber belt (10) with a glass cord reinforcement (5). Said toothed belt (10) comprises a modified tooth support (6) made of polyamide 6.6 fabric in which the weft threads (64) are entirely or partly replaced in the peripheral/longitudinal direction of the belt by yarns made of polyether ether ketone (PEEK), polyimide (PI), and/or meta-aramid or modified with the aid of PEEK, PI, and/or meta-aramid.

Thermoplastic jacket belt

A belt having a body (10), a tensile member (20) and an outer surface. The body comprises an elastomer. An outer surface of the belt having a profile, foe example teeth (15). A layer (30) of Ultra high molecular weight polyethylene thermoplastic (UHMWPE) is bonded to the profile surface. The layer bonded to the profile surface having a low softening point allowing it to conform to a mold shape prior to cure of the rubber body material. The layer having a molecular weight in the range of 3-7 million grams per mole. The layer causes the belt to exhibit superior abrasion resistance and flexibility while reducing the cost per belt as compared to fabric jacket belts. The UHMWPE jacket belt has significantly reduced dust and debris production during operation.

Elastic item, in particular drive belt, with a coating

Article comprises an elastic base body based on a vulcanizate with a wear-prone article surface, which is provided with a coating (8). At least one surface coating of the article is made of at least one film. The film comprises at least 50 wt.% linear low density polyethylene (LLDPE). The film melts during vulcanization and forms a solid adhesive bond of the base body and coating. The article is a drive belt (1) comprising a belt back (2), a top layer mixture and a base (4) with a force transmission zone (9). At least one force transmission zone is provided with the coating. An independent claim is also included for producing the article, comprising applying the film containing at least 50 wt.% LLDPE to the mixture of the base, before packaging the article.

歯付きベルト

(57)【要約】 【課題】 一般産業機械に用いられる歯付きベルトにお いて、その用途に合わせて、適正な品質の歯付きベルト を提供すること。 【解決手段】 歯付きベルト１０は、抗張体１２と、ゴ ム組成物成形硬化体１４と、歯部１６に接着された歯布 １８よりなる。ゴム組成物成形硬化体１４は、水素添加 ニトリルゴムとポリメタクリル酸亜鉛を主成分するゴム 組成物より成形される。ゴム組成物は、ポリメタクリル 酸亜鉛と水素添加ニトリルゴムとを重量部２２：７８〜 ４５：５５の配合比率で含む。ゴム組成物成形硬化体１ ４は、上記ゴム組成物に、架橋剤としての過酸化物と補 強剤としてカーボンブラックが加えられ、そして、加硫 成形される。抗張体としては、高強度ガラス繊維が使用 される。ガラス繊維にはレゾルシン−フォルマリン−ラ テックス層が形成され、さらに、その上にオーバーコー ト層が形成されている。

伝動ベルトの製造方法

動力伝動用ベルト

(57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。

Ремень бесступенчато-регулируемой передачи

Изобретение относится к изготовлению вулканизированного резинового ремня CVT. Ремень CVT выполнен в форме клинового ремня, имеющего тело ремня с наклонными сторонами, слой растяжимого корда из спирально скрученного растяжимого корда, введенного в тело ремня, резиновый слой над кордом и резиновый слой под кордом. Растяжимый корд состоит из скрученной несмешанной пряжи из углеродного волокна, пропитанной адгезивной пропиткой. Углеродное волокно может иметь диаметр нити от приблизительно 6,0 до приблизительно 6,4 микрон, модуль растяжения от приблизительно 200 до приблизительно 300 ГПа и растяжение на разрыв от приблизительно 1,9% до приблизительно 2,3%. Достигается повышение прочности ремня. 17 з.п. ф-лы, 5 ил., 4 табл. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 514 525 C2 (51) МПК F16G 5/08 (2006.01) F16G 1/08 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ (21)(22) Заявка: ИЗОБРЕТЕНИЯ К ПАТЕНТУ 2012116240/11, 24.09.2010 (24) Дата начала отсчета срока действия патента: 24.09.2010 (72) Автор(ы): ДЬЮК Ральф Майкл (US), НОКС Джон Грэм (US) (73) Патентообладатель(и): ДЗЕ ГЕЙТС КОРПОРЕЙШН (US) Приоритет(ы): (30) Конвенционный приоритет: (43) Дата публикации заявки: 27.10.2013 Бюл. № 30 R U 24.09.2009 US 61/245,377 (45) Опубликовано: 27.04.2014 Бюл. № 12 2007232429 A1, 04.10.2007. RU 2300675 C2, 10.06.2007. SU 1154502 A1, 07.05.1985 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 24.04.2012 (86) Заявка PCT: 2 5 1 4 5 2 5 (56) Список документов, цитированных в отчете о поиске: WO 02055920 A2, 17.08.2002. US 2 5 1 4 5 2 5 R U (87) Публикация заявки PCT: WO 2011/038200 (31.03.2011) Адрес для переписки: 129090, Москва, ул. Б. Спасская, 25, строение 3, ООО "Юридическая фирма Городисский и Партнеры" (54) РЕМЕНЬ БЕССТУПЕНЧАТО-РЕГУЛИРУЕМОЙ ПЕРЕДАЧИ (57) Реферат: Изобретение относится к изготовлению углеродного волокна, пропитанной адгезивной вулканизированного резинового ремня CVT. пропиткой. Углеродное волокно может иметь Ремень CVT ...

一种低动能损耗聚氨酯同步带生产工艺

本发明公开了一种低动能损耗聚氨酯同步带生产工艺，涉及聚氨酯加工领域，为解决现有技术中的现有的聚氨酯同步带在长时间工作后，易产生损耗，导致工作寿命下降的问题。一种低动能损耗聚氨酯同步带生产工艺，包括如下步骤：S1：将原料进行硫化，再将含异氰酸酯基的多异氰酸酯和含活泼氢的聚醚与聚酯多元醇进行化学改性；S2：加入调节催化剂，进行均匀搅拌反应；S3：将制得的弹性体浸到溶剂中48小时；S4：取出弹性体，放置干燥；S5：将干燥后的聚氨酯弹性体的上方和下方同时添加液态改性环氧胶；S6：将加热容器内部加热后，添加橡胶粒子后，再次加热；S7：将收纳盘取出；S8：将上模具挤压生产模具，使内部材料加压冷却成型。

Toothed belt, transmission device for toothed belt, and office instrument

프린터나 복사기의 사무용기기 등에 사용되는 치형벨트 전동장치의 치형 벨트(8)의 속도 변동을 가급적으로 저감하고, 사무용기기의 인쇄 정밀도나 화상품질의 향상등을 도모한다. The speed fluctuation of the toothed belt 8 of the toothed belt transmission used for office equipment of a printer or a copying machine is reduced as much as possible, and the printing precision and image quality of an office equipment are improved. 벨트 톱니부(11)는 톱니 폭방향 중심선(C2)에 대해 대칭으로 배치된 원호면으로 이루어진 이뿌리부(12,12)와, 이뿌리부(12,12)에 연속하여 톱니 폭방향 중심선(C2)에 대해 대칭으로 설치된 볼록형상의 원호면으로 이루어진 동력 전달부 (13 ,13)와, 양 동력 전달부(13,13)에 연속하여 또한 톱니 폭방향 중심선(C2)에 대하여 대칭으로 설치된 원호면으로 이루어진 톱니끝부(14,14)와, 양 톱니끝부(14,14)끼리를 연속하는 한개의 대략 평면으로된 톱니끝면(15)으로 구성되고, 동력 전달부(13)와 이뿌리부(12)의 접속부에서의 최대 압력각(θB)을 θB = 15 ~ 25°로 하고, 맞물릴때에 벨트 톱니부(11)의 측면을 풀리 이홈부(3)의 측면으로 늦게 접촉시켜, 벨트 톱니부(11)가 풀리 이홈부(3)로 미끄러져 들어갈때에 발생하는 반력의 수직방향성분을 작게한다. The belt tooth portion 11 has tooth root portions 12 and 12 made up of circular arc surfaces symmetrically disposed with respect to the tooth width direction center line C2, and the tooth width direction center line C2 continuous to the tooth root portions 12 and 12. A power transmission portion (13, 13) consisting of convex arcuate surfaces symmetrically provided with respect to, and an arc surface continuous with both power transmission portions (13,13) and symmetrically with respect to the tooth widthwise center line (C2). It consists of the tooth tip part 14 and 14 and the tooth tip surface 15 of the substantially planar tooth which connected both tooth tip parts 14 and 14, and is the connection part of the power transmission part 13 and the toothed part 12. The maximum pressure angle θB at θB is θB = 15 to 25 °, and when it is engaged, the side surface of the belt tooth portion 11 is brought into late contact with the side surface of the pulley groove portion 3, and the belt tooth portion 11 The vertical component of the reaction force generated when the slide into the pulley groove portion 3 is made small.