Настройки

Укажите год
-

Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

Подробнее
-

Мониторинг СМИ

Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

Подробнее

Форма поиска

Поддерживает ввод нескольких поисковых фраз (по одной на строку). При поиске обеспечивает поддержку морфологии русского и английского языка
Ведите корректный номера.
Ведите корректный номера.
Ведите корректный номера.
Ведите корректный номера.
Укажите год
Укажите год
Применить Всего найдено 4637. Отображено 100.
02-02-2012 дата публикации

Method For Repairing A Roller, And Roller

Номер: US20120028773A1
Автор: Graham Macfarlane, Jürgen Deussen, Thorsten Pfeil
Принадлежит: Felix Boettcher GmbH and Co KG

The invention relates to a method for repairing a printing roller having a roller base body made ( 10 ) of plastic or a plastic compound material. Into the two end regions ( 14 ) of the roller base body, bearing support members ( 16 ) are inserted, said bearing support members being connected to the roller base body ( 10 ) by bonding. Due to the occurrence of high stresses during the operation of the printing roller, inner surfaces ( 24 ) of the bearing support members ( 16 ) may be damaged. The damaged bearing support members ( 16 ) will be milled on their inner surfaces ( 24 ). Then, a respective sleeve ( 32,44 ) is inserted into the bearing support members ( 16 ). The inner surfaces ( 36 ) of the sleeves ( 32,44 ) serve for taking up outer bearing rings ( 26 ) of the roller bearings supporting the printing roller. The invention further relates to a printing roller with inserted sleeve ( 32,44 ).

Подробнее
Номер записи: 1
23-02-2012 дата публикации

End cap for a bearing assembly

Номер: US20120045157A1
Автор: Werner Guilford
Принадлежит: Roller Bearing Company of America Inc

An end cap for a bearing assembly including a first body section being substantially symmetric about a central axis of the end cap and having a first seating surface defining an opening extending through the first body section coaxially with the central axis. The end cap includes a second body section extending away from the first seating surface and terminating at a second seating surface. The opening is operable to receive a portion of an inner member of the bearing assembly. The first seating surface is operable to engage a portion of the inner member and the second seating surface is operable to slidingly engage a portion of an outer ring which is disposed around a portion of the inner member.

Подробнее
Номер записи: 2
19-07-2012 дата публикации

Sliding bearing

Номер: US20120183246A1
Автор: Kazuo Hirose, Satoru Fukuzawa, Yoshio Oki
Принадлежит: NTN Corp

The present invention provides a sliding bearing which is inexpensive, has a simple construction, and is capable of keeping a frictional torque low. A sliding bearing ( 1 ) supports a heat roller such as a fixing roller, a pressure roller, and the like of an image-forming apparatus is constructed of an outer ring ( 3 ) and an inner ring ( 2 ). The outer ring ( 3 ) is made of synthetic resin and the inner ring ( 2 ) is made of a sintered metal, or the outer ring ( 3 ) is made of a sintered metal and the inner ring is made of synthetic resin. The outer circumferential surface of the inner ring ( 2 ) is formed as a convexly curved surface, and the inner circumferential surface of the outer ring ( 3 ) is formed as a concavely curved surface corresponding to the convexly curved surface. The outer ring ( 3 ) is composed of two radially halved parts. The inner ring ( 2 ) is fitted on the outer ring ( 3 ) by sandwiching the inner ring ( 2 ) between the radially halved parts of the outer ring ( 3 ) in such a way that the inner circumferential surface of the outer ring ( 3 ) and the outer circumferential surface of the inner ring ( 2 ) slide relative to each other.

Подробнее
Номер записи: 3
18-10-2012 дата публикации

Electrophotographic electrically conductive member

Номер: US20120263499A1
Автор: Kazuhiro Yamauchi, Norifumi Muranaka, Satoru Nishioka, Yuichi Kikuchi
Принадлежит: Canon Inc

The present invention provides an electrophotographic electrically conductive member in which conductivity needed for a charging member is secured, and defects in an image attributed to uneven discharging can be minimized independently of a long-term use and an environment of use. An electrophotographic electrically conductive member comprising an electrically conductive support and an electrically conductive layer, wherein the electrically conductive layer includes an ion conductive resin having a quaternary ammonium ion in a molecule structure as a binder resin, and a carrier molecule represented by the following formula (1) or (2): (wherein n 1 and n 2 each independently represent an integer of 1 to 4).

Подробнее
Номер записи: 4
18-04-2013 дата публикации

TRANSFER SUCTION ROLL FOR TRANSFER OF A MATERIAL WEB

Номер: US20130095989A1
Автор: EICHLER Helmut, JANOSCH Michael, WEIGANT Harald
Принадлежит: ANDRITZ AG

The subject of this invention is a transfer suction roll () for transferring a material web with a perforated suction roll shell () that is pivot-mounted in roller bearings () and a suction box () mounted inside the transfer suction roll (). The suction box () defines a suction zone () on the perforated suction roll shell () by means of seals (). According to the invention, a suction hood () is arranged on the outer circumference of the transfer suction roll () through which air can be sucked out of the suction box () through the perforated suction roll shell (). 12117222524223224372226212422. A transfer suction roll () for transferring a material web () from one machine section to a subsequent machine section , comprising: a perforated suction roll shell () that is mounted in roller bearings (); a suction box () mounted inside the suction roll shell (); spaced apart seals () on the suction box () which delineate and define a position of a suction zone () on the perforated suction roll shell (); and a suction hood () arranged on the outer circumference of the transfer suction roll () by which air can be sucked out of the suction box () through the perforated suction roll shell ().22124. The transfer suction roll () according to claim 1 , wherein the suction box () is a non-rotating component.32124372224. The transfer suction roll () according to claim 2 , wherein the suction box () is swivel-mounted in a machine frame claim 2 , whereby the position of the suction zone () on the suction roll shell () can be altered by swiveling the suction box ().421243036. The transfer suction roll () according to claim 3 , wherein the swiveling of the suction box () is responsive to an adjusting lever () and adjusting screws ().52122272522. The transfer suction roll () according to claim 1 , wherein the perforated suction roll shell () has end covers () into which the roller bearings () of the suction roll shell () are integrated.62132243435. The transfer suction roll () according ...

Подробнее
Номер записи: 5
27-06-2013 дата публикации

Nip Rollers with Removable Disks

Номер: US20130165304A1
Автор: Ebert Dieter Theodor, St. Ours Joseph Adrian
Принадлежит: GOSS INTERNATIONAL AMERICAS, INC.

A nip roller is provided that includes a shaft, a first nip disk portion, a second nip disk portion and an attachment section for removably securing the first nip disk portion and the second nip disk portion to the shaft. 1. A nip roller comprising:a shaft;a first nip disk portion;a second nip disk portion; andan attachment section for removably securing the first nip disk portion and the second nip disk portion to the shaft,the attachment section including at least one female attachment section,the first nip disk portion including a first male attachment section that is shaped such that the first male attachment section snaps into the at least one female attachment section to removably attach the first nip disk portion to the shaft, andthe second nip disk portion including a second male attachment section that is shaped such that the second male attachment section snaps into the at least one female attachment section to removably attach the second nip disk portion to the shaft.2. The nip roller recited in wherein the first nip disk portion and the second nip disk portion are semi-annular disks.3. A nip roller comprising:a shaft;a first nip disk portion;a second nip disk portion; andan attachment section for removably securing the first nip disk portion and the second nip disk portion to the shaft,the first and second nip disk portions each including a plurality of radial alignment sections extending axially away from the corresponding nip disk portion and the attachment section including an attachment ring that includes ring alignment sections extending radially away from the attachment ring.4. The nip roller recited in wherein the attachment ring is adapted such that the ring alignment sections define circumferential spaces that are contoured to receive the radial alignment sections.5. The nip roller recited in wherein the attachment section further includes a retaining ring for securing the first and second nip disk portions to the attachment ring.6. The nip ...

Подробнее
Номер записи: 6
25-07-2013 дата публикации

CONVEYOR ROLLER SYSTEM

Номер: US20130186728A1
Автор: Dallum John, Spiess Bryan
Принадлежит: Advanced Aircraft Roller Systems, Inc.

An aircraft conveyor system comprising an aircraft including an aircraft cargo storage bay; and a roller mounted within the aircraft cargo storage bay, the roller including a one-piece integral body having a cylindrical shape, the entirety of the body being made solely out of a single piece of polymeric material, said body having a length extending from a first outermost end to a second outermost end and a diameter and a first and second exterior shoulders at the ends, said body including an aperture extending longitudinally along and through the center of said body from the first outermost end to the second outermost end, the aperture sized to rotatably receive an axle therethrough, the axle being for mounting the roller within the aircraft cargo storage bay, wherein the roller has a burn rate of less than 4.0 inches per minute. 1. A roller system having at least one operable roller unit , each roller unit comprising:a. a roller, cylindrical in shape having a length and a diameter, the roller having a center aperture extending through the length of the roller and the roller being fabricated from a polymer;b. a shaft in the form of an elongate cylinder having a diameter sized to rotatably fit within the central aperture of the roller, the shaft further having a means for retention located upon the shaft ends; andc. an elongate “U” shaped roller rack, the roller rack sized to extend the length of the roller and having a pair of upwardly extending ends located adjacent the ends of the roller, each end having an aperture sized to receive the respective shaft end and locate the shaft in a fixed location.2. The roller system as described in wherein the polymer forming the roller is a polymer select from the group consisting of polysulfone claim 1 , polyetherimide claim 1 , polyetherketone claim 1 , polyphenylene sulfide and polyvynilidene fluoride.3. The roller system as described in wherein the polymer forming the roller is an acetyl copolymer.4. The roller system as ...

Подробнее
Номер записи: 7
01-08-2013 дата публикации

ROLLER BED WITH ELECTRICAL CLUTCH

Номер: US20130195602A1
Автор: VanDorpe Werner
Принадлежит: ESAB AB

The present invention relates to a roller bed () for rotating a generally circular work piece () in circumferential direction. The roller bed () comprises two supporting members () and each supporting member () comprises a top roller () and a bottom roller (). The rollers () are adapted for simultaneous mechanical drive in the same circumferential direction. Each top roller () is also connected to an electrical clutch which is adapted for disengaging the top roller () from the simultaneous mechanical drive. The present invention further relates to a system of roller beds (). 1. A roller bed for rotating a generally circular work piece in circumferential direction , the roller bed comprising:two supporting members, each supporting member comprising a top roller and a bottom roller,wherein said top and bottom rollers are all adapted for simultaneous mechanical driving in the same circumferential direction, andwherein each top roller is connected to an electrical clutch, said electrical clutch adapted for disengaging said top roller from said simultaneous mechanical driving.2. A roller bed according to claim 1 , wherein said electrical clutch is adapted for rotating each top roller in a circumferential direction which is directed towards an opposing top roller.3. A roller bed according to claim 1 , wherein said electrical clutch is remotely controllable.4. A roller bed system comprising at least two roller beds according to and at least one gear box claim 1 , wherein said gear box is connected to said at least two roller beds. The present invention relates to the field of managing and adjusting the position of large work pieces. In particular, the invention relates to a roller bed for rotating a generally circular work piece in circumferential direction. The roller bed comprises two supporting members, each supporting member comprises a top roller and a bottom roller, and the rollers are adapted for simultaneous mechanical drive in the same circumferential direction. ...

Подробнее
Номер записи: 8
08-08-2013 дата публикации

ELECTRICALLY CONDUCTIVE RUBBER COMPOSITION, AND TRANSFER ROLLER PRODUCED BY USING THE COMPOSITION

Номер: US20130203573A1
Автор: SATOYOSHI Naoyuki, TANIO Yusuke
Принадлежит: SUMITOMO RUBBER INDUSTRIES, LTD.

An inventive electrically conductive rubber composition comprises a rubber component at least including an SBR, an EPDM and an epichlorohydrin rubber, a crosslinking agent component for crosslinking the rubber component, and a foaming agent component. The foaming agent component comprises a foaming agent alone in a proportion of not less than 0.1 part by mass and not greater than 8 parts by mass based on 100 parts by mass of the rubber component. Alternatively, the foaming agent component comprises the aforementioned proportion of the foaming agent and not greater than 5 parts by mass of a urea foaming assisting agent based on 100 parts by mass of the rubber component. An inventive transfer roller () includes a tubular roller body () formed from the electrically conductive rubber composition. 1. An electrically conductive rubber composition comprising:a rubber component at least including a styrene butadiene rubber, an ethylene propylene diene rubber and an epichlorohydrin rubber;a crosslinking agent component for crosslinking the rubber component; anda foaming agent component;wherein the foaming agent component comprises a foaming agent alone in a proportion of not less than 0.1 part by mass and not greater than 8 parts by mass based on 100 parts by mass of the rubber component.2. An electrically conductive rubber composition comprising:a rubber component at least including a styrene butadiene rubber, an ethylene propylene diene rubber and an epichlorohydrin rubber;a crosslinking agent component for crosslinking the rubber component; anda foaming agent component;wherein the foaming agent component comprises not less than 0.1 part by mass and not greater than 8 parts by mass of a foaming agent and not greater than 5 parts by mass of a urea foaming assisting agent based on 100 parts by mass of the rubber component.3. The electrically conductive rubber composition according to claim 1 , wherein the rubber component includes at least one polar rubber selected from the ...

Подробнее
Номер записи: 9
29-08-2013 дата публикации

ROLLER FOR IMAGE-FORMING APPARATUS AND PROCESS FOR PRODUCING THE SAME

Номер: US20130225380A1
Автор: Mizoguchi Akira, Nakajima Shingo, Sugawara Jun, Suzuki Yoshimasa, Uchiba Yusuke
Принадлежит:

Provided is a roller for an image-forming apparatus which includes a base member and a fluororesin layer provided on an outer circumferential surface of the base member directly or through an adhesive layer, the roller for an image-forming apparatus being characterized in that the fluororesin layer contains phosphorus-doped tin oxide. The roller for an image-forming apparatus has a surface resistance capable of stably and effectively preventing the occurrence of electrostatic offsets, and also has an excellent releasing property. Also provided is a process for producing the roller for an image-forming apparatus, characterized by including the steps of applying a fluororesin dispersion containing an aqueous dispersion of phosphorus-doped tin oxide onto a base member or an adhesive layer disposed on an outer circumferential surface of the base member, and then sintering the fluororesin. 1. A roller for an image-forming apparatus comprising a base member and a fluororesin layer provided on an outer circumferential surface of the base member directly or through an adhesive layer , wherein the fluororesin layer contains phosphorus-doped tin oxide.2. The roller for an image-forming apparatus according to claim 1 , wherein the roller is one of a pressure roller claim 1 , a developing roller claim 1 , a charged roller claim 1 , a transfer roller claim 1 , a roller for holding an endless belt claim 1 , a paper ejection roller claim 1 , a dust removing roller claim 1 , and a paper feed roller.3. The roller for an image-forming apparatus according to claim 1 , wherein the roller is a pressure roller.4. The roller for an image-forming apparatus according to claim 1 , wherein the surface electrical resistivity of the fluororesin layer is in a range of 1×10to 1×10Ω/□.5. The roller for an image-forming apparatus according to claim 1 , wherein the content of the phosphorus-doped tin oxide in the fluororesin layer is 3% to 50% by weight.6. The roller for an image-forming apparatus ...

Подробнее
Номер записи: 10
29-08-2013 дата публикации

METHODS, SYSTEMS AND PRODUCTS INVOLVING SHEET PRODUCTS

Номер: US20130225381A1
Автор: Haque Ehteshamul, Hsu Chiehlung Jay, Knudsen David L.B., Kokko Bruce Jerome, Mattheeussen Steven B.
Принадлежит: GEORGIA-PACIFIC CONSUMER PRODUCTS LP

A method for forming a tubular sheet product roll includes providing a sheet product roll having a first configuration and a void, centering a rotational axis of the sheet product roll on a longitudinal axis of a first tool, and inserting the first tool into the void of the sheet product roll to define an inner diameter of the void and to form the sheet product roll having a second configuration different from the first configuration. 1. A tubular roll of sheet product prepared by a process comprising the method of:centering a rotational axis of the sheet product roll on a longitudinal axis of a first tool; andinserting the first tool into a void of the sheet product roll to define an inner diameter of the void and to form the sheet product roll having a second configuration different from the first configuration.2. The tubular roll of sheet product of claim 1 , wherein the method further comprises rotating the first tool in the void to further define the inner diameter of the void.3. The tubular roll of sheet product of claim 1 , wherein the method further comprises moistening portions of the sheet product roll defining the void prior to inserting the first tool.4. The tubular roll of sheet product of claim 1 , wherein the method further includes heating the first tool prior to inserting the first tool.5. The tubular roll of sheet product of claim 3 , wherein the insertion of the first tool in the void is operative to dry the moistened portions of the sheet product roll.6. The tubular roll of sheet product of claim 1 , wherein the method further comprises aligning the rotational axis of the sheet product roll over a reference point with a centering device having a plurality of dogs operative to secure the sheet product roll.7. The tubular roll of sheet product of claim 1 , wherein a second tool is inserted along the rotational axis of the sheet product roll in a direction opposing the first tool.8. The tubular roll of sheet product of claim 1 , wherein the method ...

Подробнее
Номер записи: 11
29-08-2013 дата публикации

METHODS, SYSTEMS AND PRODUCTS INVOLVING SHEET PRODUCTS

Номер: US20130225382A1
Автор: Haque Ehteshamul, Hsu Chiehlung Jay, Knudsen David L.B., Kokko Bruce Jerome, Mattheeussen Steven B.
Принадлежит: GEORGIA-PACIFIC CONSUMER PRODUCTS LP

A method for forming a tubular sheet product roll includes providing a sheet product roll having a first configuration and a void, centering a rotational axis of the sheet product roll on a longitudinal axis of a first tool, and inserting the first tool into the void of the sheet product roll to define an inner diameter of the void and to form the sheet product roll having a second configuration different from the first configuration. 1. A sheet product comprising:a length of a wound first sheet product material defining a tubular roll having an outer diameter; anda semi-rigid core portion comprising the first sheet product material defining an outer diameter of a void portion concentric to the outer diameter of the roll.2. The sheet product roll of claim 1 , wherein the core portion comprises a hardened plurality of layers of the wound first sheet product.3. The sheet product roll of claim 1 , wherein the core portion includes an impregnated adhesive.4. The sheet product roll of claim 3 , wherein the impregnated adhesive includes polyethylene glycol.5. The sheet product roll of claim 1 , wherein the core portion includes a first indented portion concentric to the outer diameter of the roll claim 1 , defining an outer diameter greater than the outer diameter of the void portion.6. The sheet product roll of claim 1 , wherein the core portion includes a second indented portion concentric to the outer diameter of the roll opposing the first indented portion claim 1 , defining an outer diameter greater than the outer diameter of the void portion. This application is a divisional of the legally related U.S. application Ser. No. 12/607,195 filed Oct. 28, 2009; which is fully incorporated herein by reference.The present disclosure relates generally to methods and systems for manufacturing sheet products.Sheet products such as, for example, absorbent sheets are often packaged in tightly wound rolls. Tightly winding sheet product allows additional sheet product to fit on a ...

Подробнее
Номер записи: 12
29-08-2013 дата публикации

Methods, systems and products involving sheet products

Номер: US20130225385A1
Автор: Bruce Jerome Kokko, Chiehlung Jay Hsu, David L.B. Knudsen, Ehteshamul Haque, Steven B. Mattheeussen
Принадлежит: Georgia Pacific Consumer Products LP

A method for forming a tubular sheet product roll includes providing a sheet product roll having a first configuration and a void, centering a rotational axis of the sheet product roll on a longitudinal axis of a first tool, and inserting the first tool into the void of the sheet product roll to define an inner diameter of the void and to form the sheet product roll having a second configuration different from the first configuration.

Подробнее
Номер записи: 13
12-09-2013 дата публикации

ROTATING DEVICE, MANUFACTURING METHOD THEREOF AND BEARING COMPONENT

Номер: US20130235489A1
Автор: AOSHIMA Hisayuki
Принадлежит: ALPHANA TECHNOLOGY CO., LTD.

An example rotating device is a disk drive device that includes a base, a hub on which a recording disk is to be mounted and which rotates relative to the base, and a fluid dynamic bearing unit that allows the hub to rotate relative to the base. The fluid dynamic bearing unit includes a shaft that performs relative rotation and a cylindrical member that encircles the shaft, the cylindrical member includes a thrust dynamic pressure generating groove which is provided in one end face of the cylindrical member and which generates thrust dynamic pressure, and the thrust dynamic pressure generating groove includes a cut-and-machined face. 1. A bearing component comprising:a cylindrical member comprising a thrust dynamic pressure generating groove which is provided in one end face of the cylindrical member and which generates thrust dynamic pressure, andthe thrust dynamic pressure generating groove comprising a cut-and-machined face.2. The bearing component according to claim 1 , whereinthe cylindrical member further comprises a radial dynamic pressure generating groove which is provided in an inner circumferential surface of the cylindrical member and which generates radial dynamic pressure, andthe radial dynamic pressure generating groove is formed as a set of intermittent recesses.3. The bearing component according to claim 1 , whereinthe thrust dynamic pressure generating groove is a set of intermittent recesses formed intermittently continuous from one another along a spiral line that gradually increases a radius for each turn from an inner circumference to an outer circumference, andthe adjoining intermittent recesses are disposed so as to partially overlap in a radial direction.4. The bearing component according to claim 3 , wherein the intermittent recesses are disposed from the inner circumference toward the outer circumference by equal to or greater than 10 turns and equal to or less than 2000 turns.5. The bearing component according to claim 1 , further ...

Подробнее
Номер записи: 14
26-09-2013 дата публикации

ROTATING PART FOR IMAGE FORMING APPARATUS, CARTRIDGE FOR FORMING IMAGE, AND IMAGE FORMING APPARATUS

Номер: US20130252793A1
Автор: Furuune Makoto, IIJIMA Shinichi, IKEDA Shuichi
Принадлежит: MITSUBISHI CHEMICAL CORPORATION

A rotating part for an image forming apparatus, including: a drive member; and a driven member, wherein either of the drive member and the driven member has a male part formed in the direction of a rotational shaft, wherein the other of the drive member and the driven member has a female part formed in the direction of the rotational shaft, and wherein the male part is a ratchet-shape male part to be inserted into the female part and in which when the drive member rotates in a first direction, the male part is brought into engagement with the female part to thereby transmit power from the drive member to the driven member, while when the drive member rotates in a second direction opposite to the first direction, the male part and the female part move away from each other to thereby transmit no power. 1. A rotating part for an image forming apparatus , comprising:a drive member configured to transmit power; anda driven member which is rotated by the drive member, whereineither of the drive member and the driven member has a male part which is formed in the direction of a rotational shaft, whereinthe other of the drive member and the driven member has a female part which is formed in the direction of the rotational shaft and into which the male part is inserted, and whereinthe male part is a ratchet-shape male part configured to be inserted into the female part and in which when the drive member rotates in a first direction, the male part is brought into engagement with the female part to thereby transmit power from the drive member to the driven member, while when the drive member rotates in a second direction opposite to the first direction, the male part and the female part move away from each other in the direction of the rotational shaft to thereby transmit no power from the drive member to the driven member.2. The rotating part according to claim 1 , whereinthe female part is a twisted triangular female part in which a section normal to the rotational shaft has ...

Подробнее
Номер записи: 15
31-10-2013 дата публикации

Magnet supported rotary drum dryer

Номер: US20130283632A1
Автор: Jerry D. Miller
Принадлежит: Individual

A rotary drum dryer is supported by magnetic non-contact bearings rather than by rollers or wheels which are normally used to support a rotary drum cylinder. A plurality of rare earth permanent magnets are positioned on the outside surface of the cylindrical dryer to form at least two external annular rings. One U-shaped semi-circular channel supported with a cradle have similar rare earth permanent magnets positioned at selected locations on the inside curvature thereof with the open end facing upward and disposed below in alignment with and spaced apart from each one of the at least two annular rings of magnets supporting the on the cylindrical dryer. The like pole magnets affixed to the surface of the cylinder repel the like pole magnets facing them disposed in the U-channels of the cradle causing the cylinder to levitate above and spaced apart a selected distance from the cradle.

Подробнее
Номер записи: 16
26-12-2013 дата публикации

Electrically Conductive Roller, Development Apparatus, and Image-Forming Device

Номер: US20130343789A1
Автор: Isao Harashima, Kiyoshi Ootani, Norihiko Akegamiyama, Ryo Nakajima, Sokuei Motoda
Принадлежит: Dainichiseika Color and Chemicals Mfg Co Ltd, Shin Etsu Polymer Co Ltd

Provided is an electrically conductive roller capable of preventing the occurrence of filming for a long time and of providing toners with a desired quantity of electric charge, and a development apparatus and an image-forming device capable of forming high quality images for a long time. The electrically conductive roller has a urethane coat layer that contains a urethane resin and a particulate amino resin, wherein the urethane coat layer is formed on an outer circumferential face of an elastic layer, and a development apparatus and image-forming device equipped with the electrically conductive roller.

Подробнее
Номер записи: 17
26-12-2013 дата публикации

PAPER MACHINE ROLLER WITH FIBER BRAGG SENSORS

Номер: US20130345035A1
Автор: Berendes Antje, Breineder Martin, Schmitt Matthias, Shieh Yang
Принадлежит: VOITH PATENT GMBH

A roller for use in paper machines includes a roller core, a roller covering surrounding the roller core, and at least one optical waveguide having a plurality of fiber Bragg gratings. The at least one optical waveguide is either arranged between the roller core and the roller covering or is embedded in the roller covering. Sections of the at least one optical waveguide which each contain a fiber Bragg grating alternate with sections of the at least one optical waveguide which are free of fiber Bragg gratings in the longitudinal direction of the optical waveguide. Sections of the at least one optical waveguide which each contain a fiber Bragg grating also enclose an angle with a circumferential direction to the roller of less than 80°, for example less than 60°, or less than 45°. 1. A roll for use in a paper machine , the roll comprising:a roll core;a roll cover surrounding said roll core; andat least one optical waveguide having a plurality of fiber Bragg-gratings, said at least one optical waveguide being arranged between said roll core and said roll cover or embedded in said roll cover, and a plurality of segments of said at least one optical waveguide including one of said plurality of fiber Bragg-gratings alternating in a longitudinal direction of said optical waveguide with a plurality of segments of said at least one optical waveguide including none of said fiber-Bragg-gratings, said segments of said at least one optical waveguide including said one fiber Bragg-grating enclosing an angle with a circumferential direction to the roll of less than approximately 80°.2. The roll according to claim 1 , wherein said segments of said at least one optical waveguide including said one fiber Bragg-grating enclosing said angle with said circumferential direction to the roll of less than 60°.3. The roll according to claim 2 , wherein said segments of said at least one optical waveguide including said one fiber Bragg-grating enclosing said angle with said circumferential ...

Подробнее
Номер записи: 18
06-02-2014 дата публикации

HEARTH ROLL HAVING HIGH Mn BUILD-UP RESISTANCE

Номер: US20140038800A1
Автор: Junichi Yasuoka, Tatsuhiro Shigemitsu
Принадлежит: Nippon Steel Hardfacing Corp

The hearth roll includes a thermally sprayed coating formed on the surface thereof. The thermally sprayed coating includes a nitride, an oxide, or a multiple oxide, and a matrix material composed of one or two or more metals. In the hearth roll having high Mn build-up resistance, the following expressions are satisfied: 3% by volume≦X 1 ≦50% by volume; 3% by volume≦X 2 ≦50% by volume; and 40% by volume≦X 1 +X 2 ≦80% by volume, in which X 1 is the percentage by volume of the nitride contained in the thermally sprayed coating with respect to the total volume (10% by volume) of the thermally sprayed coating, and X 2 is the percentage by volume of the oxide or the multiple oxide contained in the thermally sprayed coating with respect to the total volume of the thermally sprayed coating.

Подробнее
Номер записи: 19
06-03-2014 дата публикации

Bearing Arrangement of a Rotating Brush Roller

Номер: US20140066278A1
Автор: Liffers Achim, Stein Thomas
Принадлежит: STEIN & Co. GmbH

In a bearing arrangement (A) of a rotating brush roller (), wherein the brush roller () is arranged by outwardly located end pieces via a bearing () in a support arrangement () of a brush housing (), and the brush roller () (comprises) a spiral-shaped receiving shaft with an outwardly located through passage area for receiving and retaining a continuous brush strip () as well as an end face opening for provision and removal, it is provided that the outer area is covered by a closure part. In this regard, the closure part has a releasable sub-element () as a continuation part of the support arrangement (), which uncovers an end face opening to the receiving shaft to the brush strip (). The sub-element () is releasably fixable by a catch element () for a corresponding unlockable counter support () in the brush housing (), and for forming a thread deflector has a deflector element () of metal in continuation of a stationary deflector element () of the closure part. In this regard the deflector elements () are allocated to a counter element () in the form of a bead on the brush roller body () made of plastic. 154131557183187119. Bearing arrangement of a rotating brush roller of a floor care device , especially carpet cleaning device in the form of a brush vacuum cleaner or a brush attachment or accessory , wherein the brush roller is arranged by s outwardly located end pieces via bearings in a support arrangement of a brush housing , and the brush roller comprises a spirally extending receiving shaft with an outwardly located through passage area for receiving and retaining a continuous brush strip as well as an end face opening for provision and removal , and the outer area is covered by a closure part as the support arrangement , wherein the closure part comprises a releasable sub-element which uncovers an end face opening for the removal of the brush strip , characterized in that the sub-element () is releasably lockable with a holding element () , such as a catch ...

Подробнее
Номер записи: 20
10-04-2014 дата публикации

Thermal expansive aluminum guide roller and production method thereof

Номер: US20140100096A1
Автор: Fajie Chen, Shengfan Chen, Shengzhen Chen, Xiandong Chen, Yuna Jiang
Принадлежит: SHANGHAI HONGHAO ENTERPRISE DEVELOPMENT Co Ltd

A thermal expansive aluminum guide roller includes: an aluminum guide roller base, wherein the aluminum guide roller base is coated by an irony layer, the irony layer is coated by a hard metallic layer. Preferably, the hard metallic layer is a nickel layer or a titanium layer. Aluminum is utilized because of a small density. With the light weight, inertia is small and a rotation speed can be adjusted rapidly for quickly adapting to different conditions while coating. A production method of the thermal expansive aluminum guide roller includes: a step of preparing the aluminum guide roller base, wherein the production method further includes steps of: A) preparing an irony sleeve; B) inserting the aluminum guide roller base into the irony sleeve; C) forming the irony layer; and D) forming a coating layer, wherein the irony layer is coated by a hard metallic layer.

Подробнее
Номер записи: 21
10-04-2014 дата публикации

URETHANE RESIN COMPOSITION AND A CONDUCTIVE ROLLER USING SAME

Номер: US20140100097A1
Автор: Adachi Mitsuaki, Kotanaka Youichi, Sirakura Daijirou, Takano Junichi
Принадлежит: BRIDGESTONE CORPORATION

Provided is a urethane resin composition by which an electrically conductive roller which has a higher elasticity than ever and in which an air bubble in an elastic layer is fine can be obtained when the urethane resin composition is used for the elastic layer of the electrically conductive roller, and an electrically conductive roller using the same. The urethane resin composition comprises: a urethane resin having a carboxyl group on a side chain; a cross-linking agent having an epoxy group; and an ester composed of a sugar and an unbranched saturated fatty acid having 16 to 24 carbon atoms as a foaming agent. The saturated fatty acid is preferably a stearic acid. The urethane resin composition preferably further contains a foaming auxiliary. The sugar is preferably a sucrose. 1. A urethane resin composition comprising: a urethane resin having a carboxyl group on a side chain; a cross-linking agent having an epoxy group; and an ester composed of a sugar and an unbranched saturated fatty acid having 16 to 24 carbon atoms as a foaming agent.2. The urethane resin composition according to claim 1 , wherein the saturated fatty acid is a stearic acid.3. The urethane resin composition according to claim 1 , which contains a foaming auxiliary.4. The urethane resin composition according to claim 1 , wherein the sugar is a sucrose.5. The urethane resin composition according to claim 3 , wherein the foaming auxiliary is an ammonium stearate.6. An electrically conductive roller comprising: a shaft; and an elastic layer and a surface layer formed on the outer periphery of the shaft sequentially claim 3 , characterized in that{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, 'the elastic layer is formed by using the urethane resin composition according to .'} The present invention relates to a urethane resin composition and an electrically conductive roller using the same (hereinafter, also simply referred to as “roller”), and more specifically, a urethane resin composition by ...

Подробнее
Номер записи: 22
15-01-2015 дата публикации

Cam follower and method for producing cam follower

Номер: US20150013420A1
Автор: Naoto Shibutani, Seiji Kanbara, Shinji Oishi, Tomoaki Kawamura, Toshiaki Ensou
Принадлежит: NTN Corp

A cam follower is constituted by an outer ring which has an outer track surface in its inner circumference; a stud which has an inner track surface opposed to the outer track surface, a flange portion abutting on one side of the inner track surface, a side plate fitting portion and a mounting shaft portion abutting on another side of the inner track surface in this order, and a fiber flow formed continuously from the flange portion to the inner track surface along their outer circumferences; rolling elements which are arranged between the outer track surface and inner track surface; and an inner side plate which is pressed into the side plate fitting portion to work with the flange portion for limiting axial movement of the outer ring and the rolling elements.

Подробнее
Номер записи: 23
15-01-2015 дата публикации

CHARGE ROLLER

Номер: US20150018181A1
Автор: Feng Yi, Kozmiski Stanley J., Li Shao-Wei
Принадлежит: Hewlett-Packard Development Company,L.P.

The present disclosure discloses a new charge roller particularly but not exclusively for charging a photoconductive element in a liquid electro-photograph (LEP) image-forming apparatus. The charge roller includes a cured composition of an aromatic diisocyanate, a polycarbonate polyester polyol, a matte agent, a surface energy modifier, and a conductive agent. 1. A charge roller comprising a rubber , said rubber being obtainable by curing a first composition comprising:an aromatic diisocyanate,a polycarbonate polyester polyol,a matte agent,a surface energy modifier, anda conductive agent.2. The roller according to claim 1 , wherein the diisocyanate and polycarbonate polyester polyol are present in the composition in amounts which give a NCO/OH equivalent ratio (NCO index) of 1.3.3. The roller according to claim 1 , wherein the diisocyanate comprises polymeric 4 claim 1 ,4′-methylene diphenyl diisocyanate.4. The roller according to claim 1 , wherein the polycarbonate polyester polyol comprises a linear aliphatic polycarbonate polyol which is obtainable from a mixture comprising 1 claim 1 ,6-hexanediol and ε-caprolactone claim 1 , having an equivalent weight of 2000 and an hydroxyl value of 1.7% w/w as measured with DIN 53 240/2.5. The roller according to claim 1 , wherein the matte agent comprises a wax surface-treated or siloxane treated fumed silica having an average volume particle size (d) comprised between 4.4 and 5 microns.6. The roller according to claim 1 , wherein the surface energy modifier comprises a fluorinated polyol.7. The roller according to claim 1 , wherein conductive agent comprises a lithium salt and/or a quaternary alkyl ammonium salt.8. A charge roller comprising a coating claim 1 , said coating comprising a rubber which is obtainable by curing a first composition comprising:a polymeric 4,4′-methylene diphenyl diisocyanate,a linear aliphatic polycarbonate polyester polyol which is obtainable from a mixture comprising 1,6-hexanediol and ε- ...

Подробнее
Номер записи: 24
15-01-2015 дата публикации

CHARGE ROLLER

Номер: US20150018182A1
Автор: Feng Yi, Kozmiski Stanley J., Li Shao-Wei
Принадлежит: Hewlett-Packard Development Company, L.P.

The present disclosure discloses a charge roller () particularly but not exclusively for charging a photoconductor in a liquid electro-photograph (LEP) image-forming apparatus. The charge roller includes a cured composition of an epichlorohydrin/ethylene oxide/allyl glycidyl ether terpolymer, a lithium salt and carbon black. 1. A charge roller comprising a rubber , said rubber being obtainable by curing a composition comprising:a terpolymer of epichlorohydrin/ethylene oxide/allyl glycidyl ether,a lithium salt, andcarbon black,wherein said rubber has an impedance at 8 KHz comprised between 10 and 20 KΩ and a DC resistance comprised between 30 and 50 KΩ when both impedance and resistance are measured by using an electrode of 323 mm long and 2 mm wide and an electrical source of 100V, in a rubber stabilized at 50% relative humidity and 23° C.2. The charge roller according to claim 1 , wherein said terpolymer has:an epichlorohydrin content which results in a terpolymer chlorine content comprised between about 18 and 20% by weight over the weight of the terpolymer, an allyl glycidyl ether content comprised between about 6.2 and 8.2% by weight over the weight of the terpolymer, the balance being ethylene oxide, and{'sub': 'L', 'a Mooney viscosity comprised between about 40 and 54 when expressed as M(1′+4′) and measured using ASTM D-1646 method.'}3. The charge roller according to claim 1 , wherein said lithium salt comprises lithium(bis)trifluoromethanesulfonimide.4. The charge roller according to claim 1 , wherein the amount of carbon black in the composition is comprised between 1 and 4 expressed as weight parts per 100 weight parts of said terpolymer.5. The charge roller according to claim 1 , wherein the amount of lithium salt in the composition is comprised between 1 and 4 expressed as weight parts per 100 weight parts of said terpolymer.6. A charge roller comprising a rubber claim 1 , said rubber being obtainable by curing a composition comprising: an epichlorohydrin ...

Подробнее
Номер записи: 25
18-01-2018 дата публикации

Sealing strip for a sealing device in a machine for processing a paper, cardboard, or tissue web

Номер: US20180017162A1
Автор: Jochen Honold, Marc Erkelenz
Принадлежит: VOITH PATENT GMBH

A sealing device seals a pressure or vacuum zone of a roller having a roller sleeve which is movable in relation to the sealing device. The sealing device has a sealing strip with an upper side forming a sealing face and a lubricant channel adjoining the sealing face and is formed by at least one groove-type depression in the sealing strip, which extends in the longitudinal direction of the sealing strip. When the sealing device is installed, the sealing face and the opening of the groove-type depression face toward the inner side of the roller sleeve. The lubricant channel is hooked up to a supply line which at least in portions runs within the sealing strip and delivers lubricant between the inner side of the roller sleeve and the sealing face. The sealing strip, at each of its two ends, has a wall delimiting the lubricant channel in its length.

Подробнее
Номер записи: 26
21-01-2021 дата публикации

MOTOR ASSEMBLY AND METHOD OF ASSEMBLING MOTOR

Номер: US20210018040A1
Автор: Ayesh Zakariya, Ince Marion Jack, Schwab Charles, Tate John, Wey Edward J., Zhong Guihui
Принадлежит:

In a motor assembly, a rotor and a trigger wheel are each secured to a first race of a four-point contact ball bearing. The circumferential position of the rotor and trigger wheel are each fixed with respect to the first bearing, and therefore with respect to one another. A resolver sensor is bolted to a housing. A second race is mounted at a fixed axial position relative to the housing, thereby locating the trigger wheel with respect to the resolver sensor. In some embodiments, the first race may be an inner race and the second race an outer race. In other embodiments, the first race may be an outer race and the second race an inner race. 1. A method of assembling a motor comprising:mounting a resolver sensor onto a housing;providing a bearing including a first race, a second race, and a plurality of rolling elements, the rolling elements being supported between the first race and the second race;securing a trigger wheel to the first race at a circumferentially fixed, predetermined relative position;after securing the trigger wheel to the first race, securing a rotor of the motor to the first race at a circumferentially fixed, predetermined relative position; andsecuring the second race to the housing at a fixed, predetermined axial and radial position relative to the resolver sensor.2. The method of wherein the resolver sensor is mounted to the housing using bolts.3. The method of wherein the first race is an outer race and the second race is an inner race.4. The method of wherein securing the second race to the housing comprises securing the second race to a shaft that is fixed to the housing.5. The method of wherein the first race is an inner race and the second race is an outer race.6. The method of wherein securing the trigger wheel to the first race comprises:sliding the trigger wheel onto the first race such that an anti-rotation tab of the trigger wheel aligns with an anti-rotation notch of the first race; andinstalling an axial locking device.7. The method ...

Подробнее
Номер записи: 27
25-01-2018 дата публикации

STATIC PRESSURE GAS BEARING

Номер: US20180023624A1
Автор: Sakaki Kazutoshi, Yoshida Tatsuya
Принадлежит:

A static pressure gas bearing used in a vacuum environment includes a guide shaft and a tubular slider which is movable in an axial direction in a state where the guide shaft is accommodated therein. The slider is configured by fastening a plurality of plate-shaped members. A film formed of a soft material having a smaller elastic modulus than that of each of the plate-shaped members is interposed between joint surfaces of the plate-shaped members. 1. A static pressure gas bearing which is used in a vacuum environment , comprising:a guide shaft; anda tubular slider which is movable in an axial direction in a state where the guide shaft is accommodated therein,wherein the slider is configured by fastening a plurality of plate-shaped members, andwherein a film formed of a soft material having a smaller elastic modulus than that of each of the plate-shaped members is interposed between joint surfaces of the plate-shaped members.2. The static pressure gas bearing according to claim 1 ,wherein the plate-shaped member is formed of ceramics and the film is formed by vapor deposition of aluminum. Priority is claimed to Japanese Patent Application No. 2015-072097, filed Mar. 31, 2015, and International Patent Application No. PCT/JP2016/058132, the entire content of each of which is incorporated herein by reference.Certain embodiment of the present invention relates to a static pressure gas bearing which is used in a vacuum environment.In a bearing which is used in a vacuum environment, it is required not to contaminate the inside of a vacuum chamber. As the bearing, a static pressure gas bearing is known. The static pressure gas bearing is configured such that a slider can smoothly move with respect to a guide shaft by ejecting compressed gas from an air pad provided inside the slider. The static pressure gas bearing has an advantage that fine dust is not generated from lubricating oil or a sliding surface unlike a rolling bearing or a linear guide.In a case where the slider ...

Подробнее
Номер записи: 28
24-01-2019 дата публикации

HIGH TEMPERATURE HIGH LOAD COMPATIBLE BEARING

Номер: US20190024704A1
Автор: Dannoux Thierry Luc Alain, Poissy Stephane
Принадлежит:

A high load, high temperature compatible bearing assembly () includes a shaft () formed of refractory steel or high temperature alloy. A roller () formed of refractory steel or high temperature alloy receives the shaft () within a bore () in the roller (). At least one bearing ring () formed of ceramic is disposed between the shaft () and the roller (). The bearing ring () cooperates with the roller () to permit the roller () to freely rotate around the shaft (). 1. A bearing assembly comprising:a shaft formed of refractory steel or high temperature alloy;a roller formed of refractory steel or high temperature alloy and receiving the shaft within a bore in the roller; andat least one bearing ring formed of ceramic and disposed between the shaft and the roller,wherein the bearing ring cooperates with the roller to permit the roller to freely rotate around the shaft.2. The bearing assembly of claim 1 , wherein the shaft and roller are formed of different refractory steels or high temperature alloys.3. The bearing assembly of claim 1 , wherein the refractory steels or high temperature alloys are at least one of a 253MA claim 1 , a Haynes 230 claim 1 , a Waspaloy claim 1 , and an Inconel 617.4. The bearing assembly of claim 1 , wherein the ceramic bearing ring is a zirconia bearing ring.5. The bearing assembly of claim 1 , wherein the roller includes a cylindrical outer wall.6. The bearing assembly of claim 1 , wherein the roller includes a conical or V-shaped outer wall.7. The bearing assembly of claim 1 , wherein the roller includes at least one roller chamber for receiving the at least one bearing ring between the roller and the shaft claim 1 , wherein the at least one roller chamber is a stepped portion in the bore of the roller having a diameter that is larger than a diameter of the bore of the roller.8. The bearing assembly of claim 1 , wherein the shaft includes a first diameter portion claim 1 , a second diameter portion claim 1 , and a third diameter portion ...

Подробнее
Номер записи: 29
10-02-2022 дата публикации

Charging roll

Номер: US20220043367A1
Автор: Asami UEMATSU, Atsushi Ikeda, Kenji Sasaki, Kosuke OURA, Satoshi Fukuoka, Shogo Suzuki
Принадлежит: Nok Corp

A charging roll includes a core member, a rubber base material disposed around the core member, and a surface layer disposed around the rubber base material. The ten point height of irregularities R Z of a surface of the surface layer is equal to or greater than 3.9 micrometers, and is equal to or less than 6.1 micrometers. The mean spacing between peaks S m of the surface of the surface layer is equal to or greater than 12.5 micrometers and is equal to or less than 13.5 micrometers.

Подробнее
Номер записи: 30
24-01-2019 дата публикации

CONDUCTIVE ROLL

Номер: US20190025727A1
Автор: OGURA Hiroshi, OURA Kousuke, TAHARA Masaki
Принадлежит:

This conductive roll includes: at least one elastic layer including primarily a conductive rubber body and provided along the outer periphery of a core ; and a coating layer provided along the outer periphery of the elastic layer . The conductive roll satisfies the following expressions: circumference Sm1≤135 μm and circumference Sm1 Подробнее

Номер записи: 31
12-02-2015 дата публикации

SINTERED METAL BEARING

Номер: US20150043844A1
Автор: AKAI Hiroshi, Hori Masaharu, Ito Fuyuki, Kurimura Tetsuya
Принадлежит: NTN CORPORATION

Provided is a sintered metal bearing, which is formed of raw material powder containing copper-based powder and iron-based powder as main components, the sintered metal bearing including a radial bearing surface along an inner periphery thereof. The copper-based powder includes fine copper powder exhibiting a particle size distribution in which a ratio of particles with a diameter of less than 45 μm is 80 wt % or more, the fine copper powder occupying one-third or more of a whole of the copper-based powder in terms of a weight ratio. A compressed body formed by compressing the raw material powder is sintered at 900° C. or more to 1,000° C. or less. 1. A sintered metal bearing , which is formed of raw material powder containing copper-based powder and iron-based powder as main components , the sintered metal bearing comprising a radial bearing surface along an inner periphery thereof ,wherein the copper-based powder comprises fine copper powder exhibiting a particle size distribution in which a ratio of particles with a diameter of less than 45 μm is 80 wt % or more, the fine copper powder occupying one-third or more of a whole of the copper-based powder in terms of a weight ratio, andwherein a compressed body formed by compressing the raw material powder is sintered at 900° C. or more to 1,000° C. or less.2. The sintered metal bearing according to claim 1 , wherein a sintered density is set at 6.70 g/cmor more to 7.20 g/cmor less.3. The sintered metal bearing according to claim 1 , wherein oil permeability is set at 0.10 g/10 min or more to 2.00 g/10 min or less.4. The sintered metal bearing according to claim 1 , wherein an oil content is set at 10 vol % or more to 14 vol % or less.5. The sintered metal bearing according to claim 1 , wherein an occupancy ratio of the fine copper powder in the whole of the copper-based powder is set at a half or more.6. The sintered metal bearing according to claim 1 , wherein the iron-based powder comprises pure iron powder claim 1 ...

Подробнее
Номер записи: 32
07-02-2019 дата публикации

Conductive roller, and production method therefor

Номер: US20190041766A1
Автор: Kiyohiko Atami, Takehiro SANO
Принадлежит: Bridgestone Corp

Provided are: a conductive roller in which detachment and scraping of particles from a surface layer are unlikely to occur; and a method of producing the same. A conductive roller 10 includes: a shaft 1; and an elastic layer 2 and a surface layer 3, which are sequentially formed on the outer circumference of the shaft 1. In this conductive roller 10, the surface layer 3 is composed of a mixture of a surface layer resin composition and particles, the surface layer resin composition contains a heat-curable or energy ray-curable urethane resin, and the particles are composed of a particle resin composition containing a urethane (meth)acrylate.

Подробнее
Номер записи: 33
08-05-2014 дата публикации

ROLLER AND METHODS FOR PRODUCTION AND OPERATION

Номер: US20140128232A1
Автор: Huennekens Andre, Kubik Klaus
Принадлежит: ANDRITZ KUESTERS GMBH

A method for processing a roll includes providing a roll comprising an axis of rotation, providing at least one pulling device, and bending the roll in a direction opposite to a curvature of the roll via the at least one pulling device. The at least one pulling device is disposed at a radial distance from the axis of rotation of the roll. 115-. (canceled)16. A method for processing a roll , the method comprising:providing a roll comprising an axis of rotation;providing at least one pulling device; andbending the roll in a direction opposite to a curvature of the roll via the at least one pulling device, the at least one pulling device being disposed at a radial distance from the axis of rotation of the roll.17. The method as recited in claim 16 , wherein the roll is an engraved roll comprising flat-top areas protruding radially from a relief base of the engraved roll claim 16 , the method further comprising:providing a grinding tool;rotating the engraved roll about the axis of rotation; andgrinding the flat-top areas of the engraved roll via the grinding tool, the grinding tool being guided at least approximately along a lateral face of the engraved roll formed by an envelope of the flat-top areas.18. The method as recited in claim 17 , further comprising:pretensioning the engraved roll prior to the grinding so that the envelope is at least approximately formed in a cylindrical shape; anddisplacing the grinding tool parallel to the axis of rotation of the engraved roll.19. The method as recited in claim 16 , further comprising:rotating the roll about the axis of rotation;grinding the roll at least substantially cylindrically in a first grinding step;engraving the roll in a plurality of steps by producing engravings having flat-top areas protruding radially from a relief base on the roll, thereby producing an engraved roll; andgrinding the flat-top areas in at least a second grinding step via at least one grinding tool, the grinding tool being guided at least ...

Подробнее
Номер записи: 34
14-02-2019 дата публикации

ARRANGEMENT FOR SUPPORTING A ROTARY DRUM

Номер: US20190049182A1
Автор: STUTZ Thomas
Принадлежит:

An arrangement for supporting a rotary drum, the rotary drum having at least three riding rings distributedly arranged along the axial direction of the rotary drum, the arrangement including a pair of relatively spaced rollers for supporting a riding ring, at least one bearing for each roller, a support for each bearing mounted for movement of the roller toward and away from the shell of the rotary drum and a spring system exerting a spring force acting on the support to counteract the weight of the rotary drum resting on the rollers, wherein the spring system includes a pressure vessel charged with a compressed gas that exerts the spring force and the rotary drum includes at least three riding rings and only at least one middle ring arranged between two outer rings is supported by a pair of relatively spaced rollers that are equipped with the spring system. 1. An arrangement for supporting a rotary drum , said rotary drum having at least three riding rings distributedly arranged along the axial direction of the rotary drum , the arrangement comprising a pair of relatively spaced rollers for supporting a riding ring , at least one bearing for each roller , a support for each bearing mounted for movement of the roller toward and away from the shell of the rotary drum and spring means exerting a spring force acting on the support so as to counteract the weight of the rotary drum resting on the rollers , wherein the spring means comprise a pressure vessel charged with a compressed gas that exerts the spring force and wherein the rotary drum comprises at least three riding rings and only at least one middle ring arranged between two outer rings is supported by a pair of relatively spaced rollers that are equipped with said spring means comprising the pressure vessel charged with the compressed gas.2. The arrangement according to claim 1 , wherein the support is mounted for pivotal movement about a pivot axis and the spring means are arranged to act on the support at a ...

Подробнее
Номер записи: 35
22-05-2014 дата публикации

FLUID BEARING WITH NON-UNIFORM GROOVES

Номер: US20140140644A1
Автор: Flores Paco Gregor, Le Lynn Bich-Quy
Принадлежит: SEAGATE TECHNOLOGY LLC

Provided herein is an apparatus, including a fluid dynamic bearing, wherein the fluid dynamic bearing includes a set of pressure-generating grooves, and wherein the set of pressure-generating grooves includes a plurality of chevron-shaped grooves, each chevron-shaped groove including at least two selected from a non-uniform depth, non-uniform angle, a non-uniform width, or a non-uniform length, selected to provide a predetermined spindle-motor stiffness to the journal bearing during steady-state operation and during a shock event. 1. The apparatus of claim 17 , wherein the fluid dynamic bearing comprisesa journal bearing comprising a sleeve and a shaft configured for a fluid therebetween,wherein the set of pressure-generating grooves comprises a set of upper journal bearing grooves and a set of lower journal bearing grooves.2. The apparatus of claim 1 , wherein each chevron-shaped groove comprises an outside wall claim 1 , the vertex of which points to an adjacent chevron-shaped groove claim 1 , and an inside wall claim 1 , the vertex of which points to the outside wall of the same chevron-shaped groove.3. The apparatus of claim 2 , wherein the non-uniform depth comprises the outside wall of each chevron-shaped groove being deeper than the inside wall.4. The apparatus of claim 2 , wherein the non-uniform depth comprises the inside wall of each chevron-shaped groove being deeper than the outside wall.5. The apparatus of claim 2 , wherein the non-uniform depth comprises a center groove of each chevron-shaped groove being deeper than both the outside wall and the inside wall.6. The apparatus of claim 2 , wherein the non-uniform angle comprises the vertex of the outside wall of each chevron-shaped groove being a narrower angle than the vertex of the inside wall.7. The apparatus of claim 1 , wherein the set of upper journal bearing grooves and the set of lower journal bearing grooves are the same.8. The apparatus of claim 1 , wherein the sleeve comprises both sets of ...

Подробнее
Номер записи: 36
28-02-2019 дата публикации

ROLLER AND LOCKING METHOD THEREOF

Номер: US20190062065A1
Автор: Chen Yue, Li Yuan, Song Zhigang, Zhang Fei
Принадлежит:

The present disclosure provides a roller and a locking method thereof. The roller includes a main body, a first groove provided on an inner surface of the main body, and a first elastic component fitted with the first groove; wherein a through hole for receiving and fixing a shaft is provided on the first elastic component. The present disclosure can be used to lock shafts. 1. A roller , includinga main body,a first groove provided on an inner surface of the main body, anda first elastic component fitted with the first groove;wherein a through hole for receiving and fixing a shaft is provided on the first elastic component.2. The roller according to claim 1 , wherein the inner surface of the main body is provided with two of the first grooves.3. The roller according to claim 1 , wherein a shape of the first groove is selected from a group consisting of a circle claim 1 , an ellipse claim 1 , a triangle claim 1 , and a rectangle.4. The roller according to claim 1 , wherein a material of the first elastic component includes rubber.5. The roller according to claim 1 , further including a second elastic component claim 1 , which is provided to surround an outer surface of the main body.6. The roller according to claim 5 , wherein the second elastic component is completely wrapped on the outer surface of the main body.7. The roller according to claim 5 , wherein a second groove is provided on the outer surface of the main body; the second elastic component is embedded in the second groove.8. The roller according to claim 7 , wherein the second elastic component protrudes from the second groove.9. The roller according to claim 5 , wherein a material of the second elastic component includes rubber.10. The roller according to claim 1 , wherein a material of the main body includes plastic or metal.11. A locking method for a roller as claimed in claim 1 , including:embedding and fixing the first elastic component in the first groove provided on the inner surface of the main ...

Подробнее
Номер записи: 37
07-03-2019 дата публикации

SUBSTRATE PROCESSING DEVICE

Номер: US20190071264A1
Автор: SHINZAKI YOHHEI
Принадлежит:

A substrate processing device includes shafts, rollers, a gas blowing unit, bearings, and s suction unit. The shafts include internal spaces and first through holes communicated with the internal spaces. The rollers are attached to the shafts to be rotatable about axes of the shafts for conveying a substrate. The gas blowing unit is configured to blow gas to the substrate carried by the rollers. The bearings support the shafts to be rotatable and include second through holes communicated with the first through holes of the shafts. The bearings include inner rings fitted on the shafts, outer rings opposed to outer peripheries of the inner rings, respectively, and rolling components disposed between the inner rings and the outer rings. The suction unit is configured to suck air in the internal spaces of the shafts. 1. A substrate processing device comprising:Shafts including internal spaces and first through holes communicated with the internal spaces;Rollers attached to the shafts to be rotatable about axes of the shafts for conveying a substrate;a gas blowing unit configured to blow gas to the substrate carried by the rollers;bearings supporting the shafts to be rotatable and including second through holes communicated with the first through holes of the shafts, the bearings including inner rings fitted on the shafts, outer rings opposed to outer peripheries of the inner rings, respectively, and rolling components disposed between the inner rings and the outer rings; anda suction unit configured to suck air in the internal spaces of the shafts.2. The substrate processing device according to claim 1 , whereineach of the shafts includes an opening into one of the internal spaces included in the each of the shafts, andthe opening is located at an end of the each of the shafts.3. The substrate processing device according to claim 1 , wherein each of the bearings includes two of the second through holes at positions corresponding to sides of corresponding one of the ...

Подробнее
Номер записи: 38
05-06-2014 дата публикации

Tilting Pad Bearing

Номер: US20140153851A1
Автор: New Nigel Henry, Pethybridge Guy
Принадлежит: WAUKESHA BEARINGS CORPORATION

A tilting pad bearing comprises a piston carrier ring that may include a plurality of voids spaced around the piston carrier ring, wherein a channel may be formed in a surface of the piston carrier ring opposite the plurality of voids. A carrier end plate may be positioned in the channel and secured to the piston carrier ring, wherein a recess may be formed in a top surface of the carrier end plate. A piston may be positioned in each void, wherein a bottom face of each piston is positioned adjacent the recess. The pistons may be substantially secured in the voids using a plurality of membranes, wherein one membrane corresponds to one piston and one void. Alternatively, the pistons may be formed in two pieces secured via a membrane. Each piston may be engaged with a bearing pad and/or interface member in a bearing pad carrier ring. 1. A tilting pad bearing comprising:a. a bearing pad carrier ring;b. a bearing pad positioned on said bearing pad carrier ring;c. a piston carrier ring, wherein said piston carrier ring and said bearing pad carrier ring are configured such that the relative positions thereof are substantially fixed;d. a void formed in said piston carrier ring; i. a top piece in mechanical communication with said bearing pad;', 'ii. a bottom piece cooperating with said piston carrier ring, wherein said two-piece piston and said bearing pad are configured such that the relative positions thereof are substantially fixed;, 'e. a two-piece piston positioned in said void, said two-piece piston comprisingf. a membrane cooperating with said top piece and said bottom piece such that said top piece and said bottom piece of said two-piece piston and said membrane form an interstitial area.2. The tilting pad bearing according to further comprising:a. a second void formed in said piston carrier ring; i. a top piece in mechanical communication with said bearing pad;', 'ii. a bottom piece cooperating with said piston carrier ring;, 'b. a second two-piece piston ...

Подробнее
Номер записи: 39
05-03-2020 дата публикации

Charging member for electrophotographic equipment

Номер: US20200073273A1
Автор: Shinkichi KASHIHARA, Takeru Horiuchi, Yoshihiro Saito
Принадлежит: Sumitomo Riko Co Ltd

The present disclosure provides a charging member for electrophotographic equipment capable of providing constant and excellent uniform chargeability over a long period of time from low-temperature and low-humidity through high-temperature and high-humidity environments, while suppressing bleeding. A charging member for electrophotographic equipment includes an elastic layer and a surface layer formed around the elastic layer. The elastic layer includes the following (a) through (c): (a) an ion conducting agent that is solid at room temperature; (b) an ion conducting agent that is liquid at room temperature; and (c) an electron conducting agent with an average grain diameter of 25 to 90 nm and a DBP absorption of 152 ml/100 g or below.

Подробнее
Номер записи: 40
16-04-2015 дата публикации

JOURNAL BEARING ASSEMBLIES AND METHODS OF ASSEMBLING SAME

Номер: US20150104123A1
Автор: Delgado Marquez Adolfo, Ertas Bugra Han, Hallman Darren Lee, Smith Walter John
Принадлежит: GENERAL ELECTRIC COMPANY

A journal bearing assembly includes a bearing housing, a plurality of bearing pads, and a plurality of bearing pad support assemblies. The bearing housing includes a radial outer wall. The plurality of bearing pads are mounted within the bearing housing, and include at least one of a gas permeable porous media and an array of gas delivery holes. The plurality of bearing pad support assemblies are radially interposed between the bearing pads and the radial outer wall. Each of the bearing pad support assemblies includes a spring assembly and a damper assembly. 1. A journal bearing assembly comprising:a bearing housing comprising a radial outer wall;a plurality of bearing pads mounted within said bearing housing, said bearing pads comprising at least one of a gas permeable porous media and an array of gas delivery holes; and a spring assembly; and', 'a damper assembly., 'a plurality of bearing pad support assemblies radially interposed between said bearing pads and said radial outer wall, each said bearing pad support assembly comprising2. The bearing assembly in accordance with claim 1 , wherein at least one of said damper assemblies comprises a hermetically sealed fluid-filled damper.3. The bearing assembly in accordance with claim 2 , wherein said hermetically sealed fluid-filled damper comprises:a sealed damper housing comprising a body having a cavity and a resistive flow path defined therein, the cavity and resistive flow path being filled with a viscous fluid;a plunger disposed within the cavity, said plunger separating the cavity into a first control volume and a second control volume, wherein the resistive flow path provides fluid communication between the first and second control volumes; anda load transferring member coupled to said plunger, said load transferring member configured to transmit mechanical loads imparted on said bearing pads to said plunger.4. The bearing assembly in accordance with claim 1 , wherein at least one of said spring assemblies ...

Подробнее
Номер записи: 41
26-03-2020 дата публикации

TONER TRANSPORTING DEVICE, DEVELOPING DEVICE, AND IMAGE FORMING APPARATUS

Номер: US20200096046A1
Автор: OKUNO Taichiro
Принадлежит: FUJI XEROX CO., LTD.

A toner transporting device includes a bearing, an opposing section, a flange, and an engaging section. The bearing has an inner ring supporting a shaft, rolling elements disposed on an outer periphery of the inner ring, and an outer ring disposed around the rolling elements to surround the inner ring. The opposing section is disposed facing a first side of the inner and outer rings. The flange is provided at a second edge at a second side of the outer ring, extends in a direction of the shaft, and covers at least a part of a second end surface at the second side of the inner ring. The engaging section serves as a first edge at the first side of the outer ring, extends out relative to a first end surface at the first side of the inner ring, and engages with the opposing section in a relatively movable manner. 1. A toner transporting device comprising:a bearing having an inner ring that supports a shaft, a plurality of rolling elements disposed on an outer periphery of the inner ring, and an outer ring disposed around the rolling elements so as to surround the inner ring;an opposing section disposed facing a first side of the inner ring and the outer ring and configured such that the first side of the inner ring is adjacent the opposing section;a flange that is provided at a second edge at a second side of the outer ring, extends in a direction of the shaft, and covers at least a part of a second end surface at the second side of the inner ring; andan engaging section that serves as a first edge at the first side of the outer ring, extends out in an axial direction beyond a first end surface at the first side of the inner ring, and engages with the opposing section in a relatively movable manner.2. The toner transporting device according to claim 1 ,wherein the engaging section engages with the opposing section so as to surround an outer periphery of a protrusion provided in the opposing section.3. The toner transporting device according to claim 2 ,wherein the ...

Подробнее
Номер записи: 42
23-04-2015 дата публикации

BEARING ARRANGEMENT AND PARABOLIC TROUGH COLLECTOR

Номер: US20150107580A1
Автор: Bauer Jörg, Donath Jurgen, Weber Martin
Принадлежит: SCHAEFFLER TECHNOLOGIES GMBH & CO. KG

The invention relates to a bearing arrangement (), in particular for bearing the carrying shaft () of a parabolic trough collector (), having a disc- or ring-shaped component (), at least one support roller (), which radially fixes the component () and on which the component () rolls on the circumferential side during rotation about a rotation axis (), and a support structure (), on which the support roller () is mounted by a radial sliding bearing (). According to the invention, the lateral surface () of the support roller () which receives the component () has a convex curve in the axial direction. The invention further relates to parabolic trough collector () mounted on a plurality of such bearing arrangements (). 1. A bearing arrangement for supporting a supporting shaft of a parabolic trough collector , comprising a disk-shaped or ring-shaped component , with at least one support roller that fixes the disk-shaped or ring-shaped component in a radial direction and on which the disk-shaped or ring-shaped component rolls on a circumferential side when rotating about a rotational axis , and a supporting construction on which the support roller is mounted by a radial sliding bearing , a lateral surface of the support roller holding the disk-shaped or ring-shaped component has a convex crowning in an axial direction.2. The bearing arrangement according to claim 1 , wherein the disk-shaped or ring-shaped component is supported by two of the support rollers spaced apart from each other perpendicular to the rotational axis.3. The bearing arrangement according to claim 1 , wherein the lateral surface of the support roller is limited on two end sides in the axial direction by a circumferential collar.4. The bearing arrangement according to claim 3 , wherein an inner surface of each of the collars in the axial direction is inclined away from the lateral surface outward in the radial direction.5. The bearing arrangement according to claim 1 , wherein the support roller is ...

Подробнее
Номер записи: 43
04-04-2019 дата публикации

DEVICE AND METHOD FOR MOUNTING A BEARING ON A ROLL NECK AND FOR REMOVING THE BEARING FROM THE ROLL NECK

Номер: US20190101161A1
Автор: Knie Daniel, Tucak Andrej
Принадлежит: SMS group GmbH

The invention relates to a device and a method for mounting a bearing on a roll neck and for removing the bearing from the roll neck of a roll. Known devices of this type have a first and a second piston/cylinder unit. They also have a stop ring , fixed in the axial direction A at the end of the roll neck remote from the body, which actsas a stop for the inner piston of the first piston/cylinder unit. In addition, the known devices have a nut which can be screwed onto an external thread of the inner piston to secure the bearing in the axial direction, in particular during a rolling operation. As an alternative to the known prior art, the present invention provides that an annular cylinder serves both as a cylinder for the first piston/cylinder unit and as a cylinder for the second piston/cylinder unit. For its function as a cylinder for the second piston/cylinder unit, said annular cylinder is covered to a certain ex ent on its side remote from the body by an annular cylinder cover . The cylinder cover serves, together with an outer flange of an outer piston , to axially delimit a removal pressure chamber of the second piston/cylinder unit. 1100200320300200320. A device () for mounting a bearing () on a section (I) of the roll neck () close to the body of a roll () and for removing the bearing () from the section of the roll neck () close to the body , said device comprising:{'b': 110', '320', '120', '200', '110, 'a first piston/cylinder unit having an annular inner piston () which is mounted, axially displaceable, on a section (II) of the roll neck () remote from the body, and having an annular cylinder () which is mounted, likewise axially displaceable, between the bearing () and the inner piston () on the section (II) remote from the body,'}{'b': 1', '120', '110, 'wherein the annular cylinder and the inner piston overlap one another partially and are positioned such that they are displaceable relative to one another in the axial direction (A); and wherein a ...

Подробнее
Номер записи: 44
10-07-2014 дата публикации

ROLLER FOR HEATING A PAPER WEB OR FABRIC

Номер: US20140190953A1
Автор: Chan Ki
Принадлежит: QUANTUM TECHNOLOGIE (DEUTSCHLAND) GMBH

A heated roller for heating a paper web or fabric web with a cylindrical roller shell, a front side and a rear side permits a homogenous temperature on its surface if the cylindrical roller shell surrounds an inner roller shell thereby forming a ring like or at least one ring segment like hollow space between the cylindrical roller shell and the inner roller shell and if at least one heat source is inserted in the hollow space. 1. A heated roller for heating a web of paper or fabric with a cylindrical roller shell , a front side and a rear side , whereinthe cylindrical roller shell surrounds an inner roller shell thereby forming a hollow space having the form of a ring or at least of a ring segment between the cylindrical roller shell and the inner roller shell,the inner roller shell has at least one casing, which extends from the front and/or rear side into the hollow space, supporting at least one heat source and being connected to at least one of the inner roller shell and/or the cylindrical roller shell by at least one inorganic salt,the cylindrical roller shell is supported by two shafts, being inserted into a through hole, one from each facing side of the roller shell.2. The roller of whereinthe at least one heat source is at least one slab like electrical heater element, which is thermally connected to the at least one inner roller shell.3. The roller of whereinthe heat source comprises multiple slab like encapsulated electrical heater elements, being arranged in parallel to each other on the outer surface of the inner roller shell or in at least one bore of the cylindrical roller shell and in parallel to a rotational axis of the roller.4. The roller of whereinthe hollow space is connected via a tube like connector with the front and/or rear side of the roll.5. The roller of whereinthe heat source is inserted from the front and/or rear side of the drum into the hollow space or bore, respectively.6. The roller of whereinthe inner roller shell is reinforced by ...

Подробнее
Номер записи: 45
13-05-2021 дата публикации

WHEEL AND LIFT UNIT FOR RADIATION IMAGING MODALITIES

Номер: US20210137471A1
Автор: Splinter Patrick Richard, Swain Ronald Elwin, Weed Steven Dana
Принадлежит:

Among other things, a radiation system is provided. The radiation system includes a stationary unit and a rotating unit that rotates about an axis relative to the stationary unit. A radiation source and a detector array are mounted to the rotating unit. A wheel mechanism at least partially supports the rotating unit and facilitates rotation of the rotating unit relative to the stationary unit. A lift unit is supported by the stationary unit and engages the rotating unit. When the lift unit is in a lowered position, the rotating unit is supported by the wheel mechanism and the lift unit is spaced a distance apart from the rotating unit. When the lift unit is in a raised position, the rotating unit is supported by the lift unit and the rotating unit is spaced a second distance apart from the wheel mechanism. 1. A wheel unit for a radiation system , the wheel unit comprising:a wheel mechanism configured to at least partially support a rotating unit and facilitate rotation of the rotating unit relative to a stationary unit, the wheel mechanism comprising at least one roller that is configured to impart rotation to the rotating unit, wherein a radiation source and a detector array are mounted to the rotating unit;a support structure configured to support the wheel mechanism, the support structure defining an opening that is sized to receive the wheel mechanism; and wherein:', 'when the attachment structure is in a locked position, the attachment structure engages the wheel mechanism and the support structure such that the wheel mechanism is attached to the support structure; and', 'when the attachment structure is in an unlocked position, the attachment structure does not engage at least one of the wheel mechanism or the support structure such that the wheel mechanism is detached from the support structure and removable from the support structure through the opening., 'an attachment structure configured to attach the wheel mechanism to the support structure,'}2. The ...

Подробнее
Номер записи: 46
17-07-2014 дата публикации

Conveyor Roller System

Номер: US20140197007A1
Автор: Dallum John, Spiess Bryan
Принадлежит: Advanced Aircraft Roller Systems, Inc.

An aircraft conveyor system comprising an aircraft including an aircraft cargo storage bay; and a roller mounted within the aircraft cargo storage bay, the roller including a one-piece integral body having a cylindrical shape, the entirety of the body being made solely out of a single piece of polymeric material, said body having a length extending from a first outermost end to a second outermost end and a diameter and a first and second exterior shoulders at the ends, said body including an aperture extending longitudinally along and through the center of said body from the first outermost end to the second outermost end, the aperture sized to rotatably receive an axle therethrough, the axle being for mounting the roller within the aircraft cargo storage bay, wherein the roller has a burn rate of less than 4.0 inches per minute. 1. A roller system having at least one operable roller unit , each roller unit comprising:a. a roller, cylindrical in shape having a length and a diameter, the roller having a center aperture extending through the length of the roller and the roller being fabricated from a polymer;b. a shaft in the form of an elongate cylinder having a diameter sized to rotatably fit within the central aperture of the roller, the shaft further having a means for retention located upon the shaft ends; andc. an elongate “U” shaped roller rack, the roller rack sized to extend the length of the roller and having a pair of upwardly extending ends located adjacent the ends of the roller, each end having an aperture sized to receive the respective shaft end and locate the shaft in a fixed location.2. The roller system as described in wherein the polymer forming the roller is a polymer select from the group consisting of polysulfone claim 1 , polyetherimide claim 1 , polyetherketone claim 1 , polyphenylene sulfide and polyvynilidene fluoride.3. The roller system as described in wherein the polymer forming the roller is an acetyl copolymer.4. The roller system as ...

Подробнее
Номер записи: 47
31-07-2014 дата публикации

ROLLER FOR PAPER STACK SEPARATION

Номер: US20140210922A1
Автор: Kashyap Chalam, Stephens Fred O.
Принадлежит: Hewlett-Packard Development Company, L.P.

A roller includes an outer cylindrical portion and an inner cylindrical portion arranged concentrically with the outer cylindrical portion. A plurality of connection spokes are provided for connecting the outer cylindrical portion and the inner cylindrical portion to each other, wherein each of the connection spokes are connected along a non-linear connection path with respect to an axis extending between the outer cylindrical portion and the inner cylindrical portion of the roller to provide a tunable spring constant in the roller. 1. A roller comprising:an outer cylindrical portion;an inner cylindrical portion arranged concentrically with the outer cylindrical portion; anda plurality of connection spokes for connecting the outer cylindrical portion and the inner cylindrical portion to each other, wherein each of the connection spokes are connected along a non-linear connection path with respect to an axis extending between the outer cylindrical portion and the inner cylindrical portion of the roller to provide a tunable spring constant in the roller.2. The roller of claim 1 , wherein the non-linear connection path of the connection spokes is provided by a connection path with a single curve along the axis extending between the outer cylindrical portion and the inner cylindrical portion of the roller to provide an adjustable spring constant in the roller.3. The roller of claim 1 , wherein the non-linear connection path of the connection spokes is provided by a connection path with multiple curves along the axis extending between the outer cylindrical portion and the inner cylindrical portion of the roller to provide an adjustable spring constant in the roller claim 1 , and wherein the multiple curves of the connection path forms an S-pattern between the outer cylindrical portion and the inner cylindrical portion of the roller.4. The roller of claim 1 , wherein the outer cylindrical portion claim 1 , the inner cylindrical portion claim 1 , and the connection spokes ...

Подробнее
Номер записи: 48
19-05-2016 дата публикации

ROLLER STRUCTURE AND MANUFACTURING METHOD THEREOF

Номер: US20160138647A1
Автор: CHAO MARTIN, LIN AIAS, WANG TING-JUI
Принадлежит:

A roller structure and a manufacturing method thereof are introduced. The roller structure includes a roller rotatable about an axial portion; a bush with an end disposed to an end of the axial portion and has a first stop portion positioned proximate to one side of the roller and another end having an engaging portion coupled to a load; and a second stop portion disposed to the other end of the axial portion and positioned proximate to the other side of the roller such that the roller rotates between the first stop portion and the second stop portion. Hence, the roller structure and the manufacturing method thereof provide a modularized roller structure for carrying a load, effectuate modularized assembly and production, enhance assembly efficiency, attain structural streamlining, and cut costs. 1. A roller structure , comprising:a roller rotatable about an axial portion, an end of a bush is disposed to an end of the axial portion, and another end of the bush having an engaging portion coupled to a load; anda second stop portion disposed at another end of the axial portion and positioned proximate to a side of the roller such that the roller rotates between the second stop portion and the engaging portion.2. The roller structure of claim 1 , wherein the bush has a first stop portion positioned proximate to another side of the roller.3. The roller structure of claim 1 , wherein the bush is formed integrally with or coupled to the axial portion.4. The roller structure of claim 3 , wherein the second stop portion is formed integrally with or coupled to the axial portion.5. The roller structure of claim 1 , wherein the second stop portion is formed by injection molding.6. The roller structure of claim 1 , wherein the second stop portion is in form of a stop component fitted around the axial portion claim 1 , and the axial portion has a third stop portion for limiting movement of the stop component.7. The roller structure of claim 1 , further comprising a connection ...

Подробнее
Номер записи: 49
18-05-2017 дата публикации

ROLLER

Номер: US20170138105A1
Автор: JANG Hyuk Soo
Принадлежит:

Provided is a roller, and more particularly, to a rotary shaft of the upper part of a rolling wheel, having an inclined surface formed along the circumference of an outer diametral surface thereof, is inserted into at least one coupling groove formed on a transfer bracket, a thrust member is provided at the upper part of the rotary shaft so as to allow a thrust load to be concentrated on the upper end of the rotary shaft or the thrust member, and a radial member is provided at the inner surface of the coupling groove and the rotary shaft positioned at the lower part of the thrust member, thereby supporting a radial load. 1. A roller wherein a rotational shaft at an upper part of a rolling wheel having a slanted surface formed on a circumference of an outer diametral surface is inserted into one or more coupling grooves formed in a transfer bracket and a thrust member is installed at the upper part of the rotational shaft to allow a thrust load to concentrate on the top of the rotational shaft or the thrust member and a radial member is installed on inner surfaces of the rotational shaft and a coupling groove positioned at the lower part of the thrust member to support a radial load.2. The roller of claim 1 , wherein an upper wheel of the thrust member is closely attached or coupled and fixed onto the bottom of the coupling groove and a rotation hole of a lower wheel of the thrust member is inserted into a vertical step portion formed on the top of the rotational shaft to slip while maintaining a contact or inserted and thereafter claim 1 , coupled and fixed and the lower wheel of the thrust member is seated on a horizontal step portion.3. The roller of claim 1 , wherein the upper wheel of the thrust member is closely attached or coupled and fixed onto the bottom of the coupling groove and the top of the rotational shaft is rounded to form a round portion and an inner diametral surface of a rotation hole of the lower wheel of the thrust member is rounded to slip ...

Подробнее
Номер записи: 50
10-06-2021 дата публикации

SEAL TO PREVENT LUBRICANT ESCAPING, AND ROLLING STAND HAVING SAID SEAL

Номер: US20210170461A1
Автор: Alken Johannes, Kipping Matthias, Knie Daniel, Seidel Ralf, Tucak Andrej
Принадлежит: SMS group GmbH

A seal () for sealing a lubricant space prevents lubricant () escaping. A rolling stand has a seal of this kind. The seal () is made at least partially from elastic material. To enable a pressing force FR, with which the bottom face () of the seal is pressed against an opposite contact surface (), for example of a roll journal (), to be variably set, the seal () has at least two cavities, which are separated from each other in the circumferential direction and which are open towards the lubricant space of the bearing. 123.-. (canceled)24200. A rolling stand () , comprising:{'b': 210', '212', '214, 'at least one roller () with two roll journals () and a roller body () for rolling a rolled material;'}{'b': 220', '222', '210', '200, 'claim-text': [{'b': 220', '222', '212', '216, 'wherein the chock () or the bearing bush () forms a receiving opening for receiving one of the roll journals (), optionally with a drawn-on journal bush (),'}, {'b': 300', '320, 'wherein an inner diameter of the receiving opening is larger than an outer diameter of the roll journal, optionally with the drawn-on journal bush, in such a manner that, between the chock or the bearing bush and the roll journal or journal bush, an annular gap () for receiving a lubricant () is formed; and'}], 'at least one chock (), optionally with a bearing bush (), for rotatably supporting the roller () in the rolling stand (),'}{'b': 220', '222, 'a seal for sealing the annular gap, which represents a lubricant space, at least in a predetermined circumferential angular range, arranged in a non-rotatable manner relative to the rotatable roller at an end proximal to the roller body and/or at an end remote from the roller body of the chock () or the bearing bush ();'}{'b': '100', 'wherein the seal () is at least partially formed from an elastic material,'}{'b': 110', '320', '300, 'wherein the seal has at least two cavities () which are separated from each other in a circumferential direction and which are open ...

Подробнее
Номер записи: 51
26-05-2016 дата публикации

COMPLIANT HYBRID GAS LUBRICATED THRUST BEARING

Номер: US20160146248A1
Автор: Ertas Bugra Han, Marquez Adolfo Delgado
Принадлежит:

Provided herein is a thrust bearing. The bearing includes one or more bearing pads, each with a thrust face, attached to a compliant bearing housing, a system for delivering a pressurized gas lubricant to the thrust face of the bearing pads, and a damping system that operates in parallel with the compliant bearing housing. 1. A thrust bearing comprising:a compliant bearing housing;one or more bearing pads coupled to the compliant bearing housing, the one or more bearing pads each having a thrust face;a gas delivery system configured to supply a pressurized gas lubricant to the thrust face of the one or more bearing pads; anda damping system configured to operate in parallel with the compliant bearing housing.2. The thrust bearing of claim 1 , wherein the thrust bearing is configured to attach to a rotor disposed inside of a turbomachine.4. The thrust bearing of claim 1 , wherein the bearing housing comprises one or more compliant springs machined into the bearing housing by electrical discharge machining.5. The thrust bearing of wherein the one or more compliant springs are S-shaped.6. The thrust bearing of wherein the one or more compliant springs are cantilevered.7. The thrust bearing of claim 1 , the damping system comprising a damper plunger separating a first volume and a second volume claim 1 , the damper plunger defining a restrictive path between the first fluid volume and the second fluid volume claim 1 , wherein the damper plunger is configured to move between the first volume and the second volume when the compliant bearing housing flexes claim 1 , allowing or restricting fluid flow between first volume and second volume.8. The thrust bearing of claim 1 , the damping system comprising a wire mesh damper.9. The gas-lubricated thrust bearing of claim 8 , wherein the gas delivery system comprises:a gas supply port disposed on the side of the bearing housing;a cover plate disposed between the wire mesh damper and a cavity; andone or more gas delivery orifices ...

Подробнее
Номер записи: 52
15-09-2022 дата публикации

CHARGING ROLLER AND IMAGE FORMING APPARATUS

Номер: US20220291606A1
Автор: OKUMOTO Kaori, Otsuru Makoto
Принадлежит: BRIDGESTONE CORPORATION

Provided is a charging roller that can achieve excellent image quality and prevent detachment of particles in its surface layer. A charging roller comprises a shaft and, on an outer circumferential side of the shaft at least a base layer and a surface layer wherein the surface layer contains a binder resin and particles and the particles contain 50 mass% or more of a same component A as at least one selected from components constituting the binder resin and a content of the particles in the surface layer is 30 parts to 120 parts by mass with respect to 100 parts by mass of the binder resin. 1. A charging roller comprising a shaft and , on an outer circumferential side of the shaft , at least a base layer and a surface layer that forms a roller surface ,wherein the surface layer contains a binder resin and particles, and the particles contain 50 mass% or more of a same component as at least one selected from components constituting the binder resin, anda content of the particles in the surface layer is 30 parts to 120 parts by mass with respect to 100 parts by mass of the binder resin.2. The charging roller according to claim 1 , wherein the particles contain an acrylic monomer as the same component as the at least one selected from the components constituting the binder resin.3. The charging roller according to claim 1 , wherein an average particle size of the particles is 3 μm to 30 μm.4. The charging roller according to claim 1 , wherein the base layer contains an ultraviolet curable resin.5. The charging roller according to claim 2 , wherein the acrylic monomer contains a multifunctional acrylate.6. The charging roller according to claim 5 , wherein the multifunctional acrylate is ethoxylated isocyanuric acid triacrylate.7. The charging roller according to claim 1 , wherein the binder resin in the surface layer is formed by curing an ultraviolet curable resin composition containing an urethane acrylate oligomer claim 1 , a photopolymerization initiator claim 1 , ...

Подробнее
Номер записи: 53
31-05-2018 дата публикации

FIXING DEVICE AND IMAGE FORMING APPARATUS

Номер: US20180150000A1
Автор: Takagi Masaru, YAMAKAWA Tomohiko
Принадлежит: KYOCERA Document Solutions Inc.

A fixing device includes a cylindrical fixing member, a pressing member, a bearing and a heat insulating member. The fixing member is heated by a heat source. The pressing member forms a fixing nip between the pressing member and the fixing member. The bearing supports an end portion of the fixing member in a rotatable manner. The heat insulating member is interposed between the bearing and the end portion of the fixing member. The heat insulating member has a cylindrical part and a flange part. The cylindrical part has a slitting groove extending along an axis direction of the cylindrical part. The flange part extends outward in a radial direction of the cylindrical part from one end of the cylindrical part in the axis direction. At least one notch is formed along an outer circumferential edge of the flange part. 1. A fixing device comprising:a cylindrical fixing member heated by a heat source;a pressing member which forms a fixing nip between the pressing member and the fixing member;a bearing which supports an end portion of the fixing member in a rotatable manner; anda heat insulating member interposed between the bearing and the end portion of the fixing member, a cylindrical part having a slitting groove extending along an axis direction of the cylindrical part, and', 'a flange part extending outward in a radial direction of the cylindrical part from one end of the cylindrical part in the axis direction,, 'wherein the heat insulating member has'}wherein at least one notch is formed along an outer circumferential edge of the flange part.2. The fixing device according to claim 1 ,wherein the plurality of notches are formed at equal intervals in a circumferential direction of the flange part.3. The fixing device according to claim 1 ,wherein the bearing comes into contact with the flange part of the heat insulating member in the axis direction.4. The fixing device according to claim 1 , comprising a C-shaped pull-out prevention member which comes into contact ...

Подробнее
Номер записи: 54
21-08-2014 дата публикации

TRANSPORTING MEMBER, DEVELOPING DEVICE, AND IMAGE FORMING APPARATUS

Номер: US20140235415A1
Автор: HIROTA Makoto, INABA Shigeru, KANEMATSU Toshihiro, NAKAJIMA Yoshitaka, OBA Shota
Принадлежит: FUJI XEROX CO., LTD.

A transporting member includes multiple helical blades that helically extend around a rotation shaft and that have an upstream-side blade and a downstream-side blade, an end portion of the upstream-side blade and an end portion of the downstream-side blade overlapping in a direction perpendicular to an axial direction of the rotation shaft, the multiple helical blades transporting an object in the axial direction via rotation of the rotation shaft; a gap portion that divides the upstream-side blade and the downstream-side blade, the upstream-side blade and the downstream-side blade being arranged at a certain angular interval in a circumferential direction of the rotation shaft; and a regulating portion that regulates an amount of the object that passes through a space between the upstream-side blade and the downstream-side blade in a direction in which the object is transported. 1. A transporting member comprising:a plurality of helical blades that helically extend around a rotation shaft and that have an upstream-side blade and a downstream-side blade, an end portion of the upstream-side blade and an end portion of the downstream-side blade overlapping in a direction perpendicular to an axial direction of the rotation shaft, the plurality of helical blades transporting an object in the axial direction via rotation of the rotation shaft;a gap portion that divides the upstream-side blade and the downstream-side blade, the upstream-side blade and the downstream-side blade being arranged at a certain angular interval in a circumferential direction of the rotation shaft; anda regulating portion that regulates an amount of the object that passes through a space between the upstream-side blade and the downstream-side blade in a direction in which the object is transported.2. The transporting member according to claim 1 , wherein the regulating portion is located downstream from the downstream-side blade.3. The transporting member according to claim 2 , wherein the ...

Подробнее
Номер записи: 55
28-08-2014 дата публикации

Roll with an Elastic Roll Cover in a Paper or Board Machine

Номер: US20140243177A1
Автор: Paasonen Jan, Ruotsi Juha, Sirkko Jari
Принадлежит: VALMET TECHNOLOGIES, INC.

In a paper or board machine, an elastic roll cover for manufacturing or finishing of a fiber web material having at least one layer of rubber mixture, wherein the at least one layer of rubber mixture contains synthetic fiber polymer in powder form and less than 10 parts of weight of UHMWPE to 100 parts of weight of the elastomer matrix. 1. An elastic roll cover bonded to a roll used for manufacturing or finishing of a fiber web , comprising:at least one layer of an isotropic rubber mixture, which isotropic rubber mixture incorporates synthetic fiber polyamide-based polymers in powder form, the isotropic rubber mixture forming the elastic roll cover;wherein the isotropic rubber mixture is a vulcanized isotropic rubber mixture forming the elastic roll cover, which isotropic rubber mixture incorporates:an elastomeric matrix of olefin-based rubber with:synthetic fiber polyamide-based polymers in powder form, comprising 10 to 30 parts of weight to 100 parts of weight of the elastomer matrix;wherein the glass transition temperature of the synthetic fiber polymer in powder form is greater than 160° C.;wherein the largest dimension of a particle of the synthetic fiber polymer in powder form forming the elastic roll cover is essentially 50 μm to 150 μm;{'sup': '3', 'wherein the density of the synthetic fiber polymer in powder form is 1.4 to 1.5 g/cm; and'}wherein fillers are of 50-100 parts of weight to 100 parts of weight of the elastomer matrix, and less than 10 parts of weight of UHMWPE to 100 parts of weight of the elastomer matrix;wherein additives are also present in the isotropic rubber mixture.2. The elastic roll cover of wherein the elastic roll cover has abrasion resistance of no more than 150 mm.3. The elastic roll cover of wherein the elastic roll cover has abrasion resistance of no more than 130 mm.4. The elastic roll cover of wherein the elastic roll cover has an elongation at break of at least 57%.5. The elastic roll cover of wherein the elastic roll cover has ...

Подробнее
Номер записи: 56
08-06-2017 дата публикации

METHOD OF MANUFACTURING AND/OR PROCESSING A PAPER, CARDBOARD, OR TISSUE WEB

Номер: US20170159818A1
Автор: ERKELENZ MARC, HONOLD JOCHEN
Принадлежит:

A sealing device seals a pressure or vacuum zone of a roller having a roller sleeve which is movable in relation to the sealing device. The sealing device has a sealing strip with an upper side forming a sealing face and a lubricant channel adjoining the sealing face and is formed by at least one groove-type depression in the sealing strip, which extends in the longitudinal direction of the sealing strip. When the sealing device is installed, the sealing face and the opening of the groove-type depression face toward the inner side of the roller sleeve. The lubricant channel is hooked up to a supply line which at least in portions runs within the sealing strip and delivers lubricant between the inner side of the roller sleeve and the sealing face. The sealing strip, at each of its two ends, has a wall delimiting the lubricant channel in its length. 1. A method of manufacturing and/or processing a paper , cardboard , or tissue web using a paper-making , cardboard-making , or tissue-making machine , the method which comprises:processing or manufacturing the paper, cardboard, or tissue web at a production speed of at least 500 meters per minute or more, and guiding the web, together with a paper-making machine covering, at least in portions a roller having a perforated roller sleeve and a pressure or vacuum zone;sealing the pressure or vacuum zone with a sealing device having at least one sealing strip with an upper side facing toward an inner side of the roller sleeve, and, during the sealing operation, placing the upper side to form a sealing face against the inner side of the roller sleeve; andfeeding a lubricant from at least one lubricant outlet opening between the sealing face and the inner side of the roller sleeve at an amount of lubricant per meter of machine width and per minute of four liters or less.2. The method according to claim 1 , which comprises feeding the lubricant in an amount per meter of machine width and per minute of three liters or less.3. The ...

Подробнее
Номер записи: 57
25-06-2015 дата публикации

Cam follower roller device

Номер: US20150176691A1
Автор: Aurelien Ghilbert-Simon, Benoît Hauvespre, Francois Champalou, Julien Maffucci, Richard Corbett
Принадлежит: SKF AB

The cam follower roller device including a body, a shaft mounted on the body, a roller mounted on the shaft in a rotationally movable manner, and at least one friction element mounted on the shaft axially between the roller and the body. The friction element is separate from the body and from the roller.

Подробнее
Номер записи: 58
01-07-2021 дата публикации

ARRANGEMENT FOR SUPPORTING A ROTARY DRUM

Номер: US20210199380A1
Автор: STUTZ Thomas
Принадлежит:

An arrangement for supporting a rotary drum, the rotary drum having at least three riding rings distributedly arranged along the axial direction of the rotary drum, the arrangement including a pair of relatively spaced rollers for supporting a riding ring, at least one bearing for each roller, a support for each bearing mounted for movement of the roller toward and away from the shell of the rotary drum and a spring system exerting a spring force acting on the support to counteract the weight of the rotary drum resting on the rollers, wherein the spring system includes a pressure vessel charged with a compressed gas that exerts the spring force and the rotary drum includes at least three riding rings and only at least one middle ring arranged between two outer rings is supported by a pair of relatively spaced rollers that are equipped with the spring system. 1. An arrangement for supporting a rotary drum , said rotary drum having at least three riding rings distributedly arranged along the axial direction of the rotary drum , the arrangement comprising a pair of relatively spaced rollers for supporting a riding ring , at least one bearing for each roller , a support for each bearing mounted for movement of the roller toward and away from the shell of the rotary drum and spring means exerting a spring force acting on the support so as to counteract the weight of the rotary drum resting on the rollers ,wherein the spring means comprise a pressure vessel charged with a compressed gas that exerts the spring force andwherein the rotary drum comprises at least three riding rings and only at least one middle ring arranged between two outer rings is supported by a pair of relatively spaced rollers that are equipped with said spring means comprising the pressure vessel charged with the compressed gas,wherein the spring means comprise a fluid chamber configured to change its volume upon movement of the roller under the weight of the rotary drum resting on the rollers,wherein ...

Подробнее
Номер записи: 59
28-05-2020 дата публикации

Laminate, developing member, and method for manufacturing the laminate

Номер: US20200166865A1
Автор: Akihide Osaku, Kaori OKUMOTO
Принадлежит: Bridgestone Corp

A laminate includes, in order, a base layer, an intermediate layer and a surface layer, wherein: the base layer is a polymerized product of a base layer composition containing at least compound A having a (meth)acryloyl group; the intermediate layer is a polymerized product of an intermediate layer composition containing (i) compound B having two or more functional groups, at least one of which being (meth)acryloyl group, and (ii) compound C having two or more functional groups, at least one of which being hydroxyl group; the surface layer is a polymerized product of a surface layer composition containing at least compound D having an isocyanate group; the (meth)acryloyl group in the base layer is bonded to the (meth)acryloyl group in the intermediate layer composition; and the hydroxyl group in the intermediate layer is bonded to the isocyanate group in the surface layer composition.

Подробнее
Номер записи: 60
13-06-2019 дата публикации

MAT ROLLER

Номер: US20190176409A1
Автор: Cai Wang You, Hai Wang, VanSickel Larry
Принадлежит:

A handle supporting a mat roller head at an angle to the handle to make applying force to the adhesive acoustic damping mat easier in tight spaces. The angle is optionally adjustable. The roller head includes arms supporting a roller with a two-dimensionally corrugated surface to enable applying adhesive acoustic damping mats to irregular surfaces. Additionally, the roller head supports two LEDs to improve visibility of the workspace when adhesive acoustic damping mats are being applied. Power for the LEDs comes from batteries in a battery compartment in the handle. The screw-on battery compartment cap includes an ON/OFF switch. The handle has a top thumb rest and a bottom finger rest and has a partial tactile engagement surface. 1. A mat roller comprising:a. a handle;b. a roller head fixed to a first end of said handle; andc. a roller having mounted in said roller head and having a surface of two-dimensionally corrugated protrusions.2. The mat roller of claim 1 , comprising:a. a hollow battery compartment supporting two electrical contacts in said handle; andb. a screw cap closure for a second end of said handle.3. The mat roller of claim 2 , wherein said screw cap comprises an ON/OFF switch.4. The mat roller of claim 1 , wherein said roller head comprises:a. a barrel fixed transversely to said handle;b. first and second roller support arms releasably fastened transversely to respectively opposed ends of said barrel at respective first ends of said first and second roller support arms;c. first and second roller axle receivers in respective distal second ends of said respective first and second roller support arms.5. The mat roller of claim 4 , comprising an angle between parallel first and second centerlines of said first and second roller support arms and a centerline of said handle.6. The mat roller of claim 5 , wherein said angle is 142°+/−2°.7. The mat roller of claim 5 , wherein said angle is adjustable.8. The mat roller of claim 4 , comprising:a. at least two ...

Подробнее
Номер записи: 61
29-06-2017 дата публикации

Roll for High Temperature Environments

Номер: US20170182535A1
Автор: Karns Frank, Votaw Bryan David
Принадлежит: Extreme Caster Services, Inc.

A roll for continuous casting comprises a cylindrical roll rotatably mounted on a fixed axle and having a cooling chamber that surrounds the axle for receiving a flow of coolant. The axle is mounted on a roll support system. The roll support system comprises a first roll support connected to a coolant supply system and a second roll support connected to a coolant drain system. The axle comprises a first inlet connected to the first roll support, a first outlet connected to the coolant chamber, a second inlet connected to the coolant chamber, and a second outlet connected to the second roll support. A coolant flow circuit has a flow path from the coolant supply system to the coolant drain system through the first roll support, the first inlet, the first outlet, the coolant chamber, the second inlet, the second outlet, and the second roll support. 1. A roll for continuous casting comprising:a cylindrical roll rotatably mounted on a fixed axle and having a cooling chamber for receiving a flow of coolant, said coolant chamber surrounding said axle;said axle mounted on a roll support system and comprising a coolant inlet system, a barrel, and a coolant outlet system; a first roll support connected to a coolant supply system; and', 'a second roll support connected to a coolant drain system;, 'said roll support system further comprisessaid coolant inlet system comprises a first inlet connected to said first roll support and a first outlet connected to said coolant chamber;said coolant outlet system comprises a second inlet connected to said coolant chamber; and a second outlet connected to said second roll support; anda coolant flow circuit that has a flow path from said coolant supply system to said coolant drain system through said first roll support, said first inlet and said first outlet of said coolant inlet system, said coolant chamber, said second inlet and said second outlet of said coolant outlet system, and said second roll support.2. The roll of in which said ...

Подробнее
Номер записи: 62
23-07-2015 дата публикации

SEALING DEVICE, SUCTION ROLL AND METHOD FOR PRODUCING AND/OR PROCESSING A PAPER, CARDBOARD OR TISSUE WEB

Номер: US20150204014A1
Автор: ERKELENZ MARC, HONOLD JOCHEN
Принадлежит:

A sealing device seals a pressure or vacuum zone of a roller having a roller sleeve which is movable in relation to the sealing device. The sealing device has a sealing strip with an upper side forming a sealing face and a lubricant channel adjoining the sealing face and is formed by at least one groove-type depression in the sealing strip, which extends in the longitudinal direction of the sealing strip. When the sealing device is installed, the sealing face and the opening of the groove-type depression face toward the inner side of the roller sleeve. The lubricant channel is hooked up to a supply line which at least in portions runs within the sealing strip and delivers lubricant between the inner side of the roller sleeve and the sealing face. The sealing strip, at each of its two ends, has a wall delimiting the lubricant channel in its length. 118-. (canceled)19. A sealing device for sealing a pressure or vacuum zone of a roller having a roller sleeve that is movable relative to the sealing device , the sealing device comprising:a sealing strip having an upper side with a sealing face and a lubricant channel adjoining said sealing face, said lubricant channel being at least one groove-type depression formed in said sealing strip and extending in a longitudinal direction of said sealing strip;wherein, on installation of said sealing device in the roller, said sealing face and an opening of said groove-type depression facing toward an inner side of the roller sleeve;at least one supply line hooked up to said lubricant channel, said at least one supply line, at least in portions thereof, running within said sealing strip and delivering lubricant to between the inner side of the roller sleeve and said sealing face; andsaid sealing strip having a length delimited by two ends and a respective wall at each of said two ends delimiting a length of said lubricant channel.20. The sealing device according to claim 19 , wherein a central portion has a length of several ...

Подробнее
Номер записи: 63
12-07-2018 дата публикации

ELASTIC ROLL FOR ELECTROPHOTOGRAPHIC APPARATUS AND METHOD FOR MANUFACTURING THE SAME

Номер: US20180194916A1
Автор: Minematsu Kousuke, Morita Takahiro, Nimura Yasunori, Suenaga Junichiro, TATSUMI Satoshi, Yamaoka Ryosuke
Принадлежит: Sumitomo Riko Company Limited

To provide an elastic roll for an electro-photographic apparatus that includes an elastic body layer having a low hardness and being excellent in fatigue resistance, and thus is resistant to fatigue, and to provide a method for manufacturing the same. 1. An elastic roll for an electrophotographic apparatus , the roll comprising a shaft body , and a foamed elastic body layer provided on an outer periphery of the shaft body ,wherein the foamed elastic body layer consists of a silicone rubber foamed body comprising a plurality of air bubbles in its base material comprising cross-linked silicone rubber and a reinforcement material,wherein the foamed elastic body layer has a communication degree of 40% or more, andwherein the base material comprises a cross-linked product of a silicone rubber composition that comprises an organopolysiloxane, a cross-linking agent, a reinforcement material, and a microcapsule type catalyst consisting of resin microparticles encapsulating a cross-linking catalyst.2. The elastic roll for an electrophotographic apparatus according to claim 1 , wherein the resin of the resin microparticles has a solubility parameter of 7.9 or more.3. The elastic roll for an electrophotographic apparatus according to claim 1 , wherein the content of the reinforcement material is within the range of 0.5 to 15 parts by mass with respect to 100 parts by mass of the cross-linked silicone rubber.4. The elastic roll for as electrophotographic apparatus according to claim 1 , wherein the plurality of air bubbles have an average diameter of 50 μm or less.5. The elastic roll for an electrophotographic apparatus according to claim 1 , wherein the resin of the resin microparticles is a thermosetting resin.6. The elastic roll for an electrophotographic apparatus according to claim 1 , wherein the resin of the resin microparticles is at least one selected from an epoxy resin claim 1 , an acrylic resin claim 1 , a polyvinyl butyral resin claim 1 , a styrene-based polymer ...

Подробнее
Номер записи: 64
18-06-2020 дата публикации

CONVEYOR IDLER SEAL APPARATUS, SYSTEMS, AND METHODS

Номер: US20200189851A1
Автор: Grimm Lafe, Rude Owen Greg, SCHMIDGALL Paul
Принадлежит:

Seal assemblies for conveyor idler rolls are provided. In some embodiments, a plurality of subsets of seal components are selectively installable in the seal assembly. In some embodiments, one or more fins are included on a seal. 1. (canceled)2. A seal assembly for use with an idler roll having an end disc , a bearing , and an idler shaft extending in a generally axial direction , the seal assembly comprising: a first annular internal seal wall; and', 'a second annular internal seal wall, said second annular internal seal wall having an internal seal wall annular inner surface and an annular outboard surface;, 'an internal seal, said internal seal comprising a first annular external seal wall, said first annular external seal wall having an external seal wall annular inner surface; and', 'a second annular external seal wall, said second annular external seal having an inboard surface,, 'an external seal, said external seal comprisingwherein an inboard portion of said internal seal wall annular inner surface at least partially defines a first annular sealing element volume, said first annular sealing element volume being configured to selectively receive a first annular sealing element therein,wherein an outboard portion of said internal seal wall annular inner surface at least partially defines a second annular sealing element volume, said second annular sealing element volume being configured to selectively receive a second annular sealing element therein,wherein said annular outboard surface of said second annular internal seal wall, said inboard surface of said second annular external seal wall, and said external seal wall annular inner surface cooperate to at least partially define a third annular sealing element volume, said third annular sealing element volume being configured to selectively receive a third annular sealing element therein.3. The seal assembly of claim 2 , further comprising:an annular protrusion disposed axially between said inboard portion of ...

Подробнее
Номер записи: 65
18-06-2020 дата публикации

SEALING STRUCTURE

Номер: US20200191277A1
Автор: SUZUKI Toyoaki
Принадлежит: FANUC Corporation

A sealing structure includes: a first member having a first surface extending along a gravity direction in which gravity acts; a second member having a second surface facing the first surface and extending along the gravity direction; a hydrostatic bearing that is arranged on the first surface of the first member and is configured to supply a compressed liquid between the first surface and the second surface; and a seal portion having a clearance that is formed between the first surface and the second surface and is provided below the hydrostatic bearing in the gravity direction. A liquid is retained in the clearance by surface tension. 1. A sealing structure , comprising:a first member having a first surface extending along a gravity direction in which gravity acts;a second member having a second surface that faces the first surface and extends along the gravity direction;a hydrostatic bearing that is arranged on the first surface of the first member and is configured to supply a compressed liquid between the first surface and the second surface; anda seal portion having a clearance that is formed between the first surface and the second surface and is provided below the hydrostatic bearing in the gravity direction, wherein a liquid is retained in the clearance by surface tension.2. The sealing structure according to claim 1 , wherein the clearance of the seal portion is set so as to retain the liquid in the clearance even when the compressed liquid stagnates on the liquid held in the clearance.3. The sealing structure according to claim 1 , wherein the first member has a discharge port arranged above the seal portion in the gravity direction claim 1 , and the compressed liquid supplied between the first surface and the second surface flows into the discharge port.4. The sealing structure according to claim 1 , wherein the clearance is formed by the first member and the second member.5. The sealing structure according to claim 1 , wherein the clearance has a size ...

Подробнее
Номер записи: 66
20-07-2017 дата публикации

ASSEMBLY STRUCTURE OF ROLLER

Номер: US20170204899A1
Автор: PARK Eun Soo
Принадлежит:

An assembly structure of a roller which includes a shaft, a ring unit, and a fixing unit. When the shaft and the ring unit are combined, the center of the bearing unit of the shaft and the center of the outer circumferential surface of the ring unit coincide, the center of the ring mounting unit of the shaft and the center of the inner circumferential surface of the ring unit coincide, the center of the bearing unit of the shaft and the center of the ring mounting unit are spaced apart, the diameter of the bearing unit is shorter than the diameter of the ring mounting unit, and a distance between the centers of the bearing unit of the shaft and the ring mounting unit is equal to or shorter than the distance between the diameter of the ring mounting unit and the diameter of the bearing unit. 1. An assembly structure of a roller which includes:a shaft having a ring mounting unit and bearing units connected to both end portions of the ring mounting unit; a ring unit fit onto the shaft in the form that its inner circumferential surface comes into contact with the outer circumferential surface of the ring mounting unit; and a fixing unit for restraining separation of the ring unit from the ring mounting unit,wherein when the shaft and the ring unit are combined with each other, the center of the bearing unit of the shaft and the center of the outer circumferential surface of the ring unit coincide with each other,the center of the ring mounting unit of the shaft and the center of the inner circumferential surface of the ring unit coincide with each other,the center of the bearing unit of the shaft and the center of the ring mounting unit are spaced apart from each other,the diameter of the bearing unit is shorter than the diameter of the ring mounting unit, anda distance between the center of the bearing unit of the shaft and the center of the ring mounting unit is equal to or shorter than the distance between the diameter of the ring mounting unit and the diameter of ...

Подробнее
Номер записи: 67
02-10-2014 дата публикации

RUBBER COMPOSITION, SHEET CONVEYING ROLLER, AND IMAGE FORMING APPARATUS

Номер: US20140296049A1
Автор: HYODO Takehiko, Mine Akihiro, TAMURA Toshihiro
Принадлежит: SUMITOMO RUBBER INDUSTRIES, LTD.

A rubber composition contains a higher ethylene content EPDM and a lower ethylene content EPDM as a rubber component. The proportion of the higher ethylene content EPDM is 30 to 80 mass % based on the overall amount of the rubber component. The rubber composition is less susceptible to reduction in friction coefficient μ and has a proper hardness, a smaller permanent elongation and an excellent abrasion resistance after crosslinking. Therefore, the rubber composition is suitable for a sheet conveying roller and an image forming apparatus incorporating the sheet conveying roller. 2. The rubber composition according to claim 1 , further comprising a crosslinking assisting agent.3. The rubber composition according to claim 1 , which provides a crosslinked product having a permanent elongation of not greater than 12%.4. The rubber composition according to claim 2 , which provides a crosslinked product having a permanent elongation of not greater than 12%.5. A sheet conveying roller formed from the rubber composition according to .6. An image forming apparatus incorporating the sheet conveying roller according to . The present invention relates to a rubber composition suitable for a sheet conveying roller, a sheet conveying roller formed from the rubber composition, and an image forming apparatus incorporating the sheet conveying roller.Sheet conveying rollers are incorporated in a sheet conveying mechanism provided, for example, in an image forming apparatus such as an electrostatic copying machine, a laser printer, a plain paper facsimile machine or a printer-copier-facsimile multifunction machine.Examples of the sheet conveying rollers include a sheet feed roller, a transport roller, a platen roller and a sheet output roller, which are each rotatable in contact with a sheet to frictionally transport the sheet (the term “sheet” is herein defined to include a paper sheet, a plastic film and the like, and this definition is effective in the following description). ...

Подробнее
Номер записи: 68
29-07-2021 дата публикации

CHARGING ROLL OR DEVELOPING ROLL FOR ELECTROPHOTOGRAPHIC DEVICE

Номер: US20210232058A1
Автор: AKIRA Naoki, Horiuchi Takeru, MIYAGAWA Shimpei, NAKAZATO Kenta, Saito Takenori, SAITO Yoshihiro
Принадлежит: Sumitomo Riko Company Limited

An elastic body layer is composed of a conductive rubber composition containing an isoprene rubber, a rubber other than the isoprene rubber, and carbon black. The elastic body layer is phase-separated into a first rubber phase containing the isoprene rubber and a second rubber phase containing the rubber other than the isoprene rubber; in the range of a 5 μm×5 μm square of an arbitrary cross section of the elastic body layer, the area ratio of the first rubber phase is within a range of 10 to 90%. The resistance value of the elastic body layer is within a range of 1.0×10to 1.0×10Ω. A surface layer contains an electronic conductive agent and a crosslinked body of at least one polyurethane resin of an ether polyurethane resin and a carbonate polyurethane resin, and the glass transition point of the surface layer is within a range of −10 to −70° C. 1. A charging roll for an electrophotographic device , comprising:a shaft body, an elastic body layer formed on the outer periphery of the shaft body, and a surface layer formed on the outer periphery of the elastic body layer;wherein the elastic body layer is composed of a conductive rubber composition containing an isoprene rubber, a rubber other than the isoprene rubber, and carbon black;the elastic body layer is phase-separated into a first rubber phase containing the isoprene rubber and a second rubber phase containing the rubber other than the isoprene rubber, wherein the rubber other than the isoprene rubber is an acrylonitrile butadiene rubber; in the range of a 5 μm×5 μm square of an arbitrary cross section of the elastic body layer, the area ratio of the first rubber phase with respect to a total of the first rubber phase and the second rubber phase is within a range of 10 to 90%, the carbon black is eccentrically located in the second rubber phase than in the first rubber phase;{'sup': 3', '6, 'the resistance value of the elastic body layer is within a range of 1.0×10to 1.0×10Ω, a surface roughness Sa of the ...

Подробнее
Номер записи: 69
04-08-2016 дата публикации

HEAT-RESISTANT ROLL, MANUFACTURING METHOD THEREOF, AND PLATE GLASS MANUFACTURING METHOD USING SUCH HEAT-RESISTANT ROLL

Номер: US20160221861A1
Автор: Mihara Tetsuya, Watanabe Kazuhisa
Принадлежит:

A method for producing a heat-resistant roll including: a roll part fabricating step for fabricating a roll part comprising 5 wt % or more of a clay mineral; a grinding step for grinding the roll surface of the roll part; a surface treatment step for conducting a surface treatment in which the ground roll surface is smoothed in a moisturized state; and a clay coating film forming step for forming a coating film of a clay mineral on the surface-treated roll surface. 1. A method for producing a heat-resistant roll comprising:a roll part fabricating step for fabricating a roll part comprising 5 wt % or more of a clay mineral;a grinding step for grinding a roll surface of the roll part;a surface treatment step for conducting a surface treatment in which the ground roll surface is smoothed in a moisturized state; anda clay coating film forming step for forming a coating film of a clay mineral on the surface-treated roll surface.2. The method for producing a heat-resistant roll according to claim 1 , wherein a swelling power of the clay mineral covering the surface is 15 ml/2 g or more.3. The method for producing a heat-resistant roll according to claim 1 , wherein the clay mineral covering the surface is one or more selected from bentonite claim 1 , Kibushi clay and kaolin.4. The method for producing a heat-resistant roll according to claim 1 , wherein claim 1 , in the clay coating film forming step claim 1 , a clay mineral-containing liquid is applied to the surface-treated roll surface claim 1 , followed by drying claim 1 , thereby to form the coating film of the clay mineral.5. The method for producing a heat-resistant roll comprising:a roll part fabricating step for fabricating a roll part comprising 5 wt % or more of a clay mineral;a grinding step for grinding a roll surface of the roll part; anda surface treatment step for conducting a surface treatment in which the ground roll surface is smoothed in a state moisturized with a clay mineral-containing liquid, ...

Подробнее
Номер записи: 70
04-08-2016 дата публикации

MACHINE FOOT WITH LOCKING SPINDLE AND USE

Номер: US20160223125A1
Автор: OLSEN Tomas Hecht
Принадлежит:

The invention is directed to a machine foot, which includes a top part provided with a lock nut, which is mounted in a thread on a spindle, where the lock nut has an abutment complementary shaped to the housing of the lower part, which abutment forms a section of a sphere, and where there is a first gasket between the spindle and lock nut and where there is a second gasket between housing and lock nut. With the invention is achieved that the lower parts and top parts can be produced and stocked as separate and independent units, which for example are not assembled to a finished product until after order. 110.-. (canceled)11. A machine foot , comprising:a top part for attachment in a device, and having a threaded spindle, a thread shield and a lock nut mounted in a thread of the threaded spindle; anda lower part for contacting against a foundation, and having a housing;wherein the center axis of the top part is movable a number of degrees in relation to the center axis of the lower part;wherein the lock nut has an abutment complementary shaped to the housing of the lower part, which abutment forms a section of a sphere; andwherein a first gasket is positioned between the threaded spindle and the lock nut, and a second gasket is positioned between the housing and the lock nut.12. The machine foot according to claim 11 , wherein the lock nut comprises means that are adapted to lock the angle between the center axis of the top part in relation to the center axis of the lower part claim 11 , which means comprises the complementary shaped abutment against the housing and a friction provided between the lock nut and the housing.13. The machine foot according to claim 11 , wherein the lock nut comprises means that are adapted to lock the rotation of the top part in relation to the lower part claim 11 , which means comprises the complementary shaped abutment against the housing and a friction provided between the lock nut and the housing and a friction provided between the ...

Подробнее
Номер записи: 71
11-07-2019 дата публикации

TRACTION MACHINE ASSEMBLY AND ELEVATOR

Номер: US20190210841A1
Автор: Gao GuoChen, Liu RuGuang, Zhu Fengkun
Принадлежит:

The present application provides a tractor assembly and an elevator. The tractor assembly includes: a traction sheave, having a traction means fitting surface and a first transmission surface on a peripheral surface thereof; a plurality of support wheels, configured to support the traction sheave, and each having a second transmission surface on a peripheral surface thereof; and support wheel bases, configured to support the support wheels through support shafts, wherein the first transmission surface of the traction sheave is in transmitting cooperation with the second transmission surfaces of the plurality of support wheels respectively. According to the tractor assembly and elevator of the present application, the support wheels are disposed to achieve the transmitting cooperation of the traction sheave during operation of the elevator and support the traction sheave, thus omitting the load and drive bearings required by a conventional traction sheave. Therefore, not only the weight of the unit is reduced, but also the reserved hollow part of the traction sheave increases the area of ventilation, thus improving the heat dissipation effect of the rotor winding of the traction unit. In addition, this structure is also easy to disassemble/assemble and maintain. 1. A tractor assembly , comprising:a traction sheave, having a traction means fitting surface and a first transmission surface on a peripheral surface thereof;a plurality of support wheels, configured to support the traction sheave, and each having a second transmission surface on a peripheral surface thereof; andsupport wheel bases, configured to support the support wheels through support shafts,wherein the first transmission surface of the traction sheave is in transmitting cooperation with the second transmission surfaces of the plurality of support wheels respectively.2. The tractor assembly according to claim 1 , wherein the plurality of support wheels are respectively arranged below the traction sheave ...

Подробнее
Номер записи: 72
19-08-2021 дата публикации

AIR BEARING FOR USE AS SEAL

Номер: US20210254663A1
Автор: Devitt Andrew, Pollick Richard Duane
Принадлежит: NEW WAY MACHINE COMPONENTS, INC.

In order to effect a seal a porous material which comprises one side of two opposing surfaces is used to restrict and evenly distribute externally pressurized gas, liquid, steam, etc. between the two surfaces, exerting a force which is opposite the forces from pressure differences or springs trying to close the two faces together and so may create a non-contact seal that is more stable and reliable than hydrodynamic seals currently in use. A non-contact bearing is also disclosed having opposing surfaces with relative motion and one surface issuing higher than ambient pressure through a porous restriction, wherein the porous restriction is part of a monolithic porous body, or a porous layer, attached to lands containing a labyrinth, the porous restriction and lands configured to not distort more than 10% of a gap created from differential pressure between each side of the porous restriction. 1. A non-contact bearing assembly comprising:a rotatable shaft with a bearing surface; a porous media having a first side opposing the bearing surface, and a second side that faces a plurality of plenums,', 'a port connected to each of the plurality of plenums, and a conductive passage for communicating pressurized refrigerant to each of the plurality of the plenums through the port of the primary ring, wherein the plurality of plenums and the porous media distribute the pressurized refrigerant between the bearing surface and the primary ring to create a load bearing film of refrigerant between the runner and the porous media., 'a primary ring located concentric to the shaft, the primary ring including2. The non-contact bearing assembly of claim 1 , where the porous media is formed using 3-D printing process.3. The non-contact bearing assembly of wherein the plurality of plenums are defined in the second side of the porous media.4. The non-contact bearing assembly of claim 1 , wherein the porous media is a material selected from a group consisting of ceramic materials claim 1 , ...

Подробнее
Номер записи: 73
09-07-2020 дата публикации

BEARING BODY

Номер: US20200217357A1
Автор: Inoue Masayuki
Принадлежит:

A bearing body according to the present invention includes first and second support surfaces inclined so as to slope upward from a side on the imaginary central vertical plane passing through an axis of a rotating shaft to be supported toward one and the other outer sides in the width direction of the rotating shaft. First and second transitional regions that respectively make transitions from the first and second support surfaces to a first and end surface of the bearing body on one side in the axial direction of the rotating shaft have a curved shape projecting obliquely upward such that an orientation of a normal line changes from a perpendicular direction to a parallel direction with respect to the axis of the rotating shaft toward one side from the other side in the axial direction of the rotating shaft. 2. The bearing body according to claim 1 , wherein the first transitional region includes the entirety of the first support surface in the axial direction of the rotating shaft claim 1 , and the second transitional region includes the entirety of the second support surface in the axial direction of the rotating shaft.3. The bearing body according to claim 1 , whereinthe first and second support surfaces respectively have first and second planar regions extending from the second end surface toward one side from the other side in the axial direction of the rotating shaft and terminating within a thickness of the bearing body,the first transitional region starts from one side in the axial direction of the first planar region, andthe second transitional region starts from one side in the axial direction of the second planar region.5. The bearing body according to claim 4 , wherein the first-end-surface-side first transitional region and the first-end-surface-side second transitional region are symmetrical to the second-end-surface-side first transitional region and the second-end-surface-side second transitional region with respect to an imaginary transverse plane ...

Подробнее
Номер записи: 74
16-07-2020 дата публикации

Roll stand

Номер: US20200222957A1
Автор: Daniel Knie, Dennis Braach, Johannes Alken
Принадлежит: SMS group GmbH

A roll stand for the rolling of rolling stock, especially metal products. The roll stand includes at least two chocks for mounting at least one roll, the roll being rotatably mounted in the chocks by its two cylindrical roll necks. A cylindrical neck bushing is arranged on the roll neck with radial play. A rotationally fixed annual axial bearing is axially offset from the neck bushing. The bearing arrangement for the roll necks in the chocks is formed as a plain bearing, preferably a hydrodynamic oil film bearing. When subjected to a load in a rolling process, the neck bushing moves and deforms not only in the radial direction, but also in the axial direction.

Подробнее
Номер записи: 75
01-08-2019 дата публикации

CONVEYOR IDLER SEAL APPARATUS, SYSTEMS, AND METHODS

Номер: US20190233217A1
Автор: Grimm Lafe, Rude Owen Greg, SCHMIDGALL Paul
Принадлежит:

Seal assemblies for conveyor idler rolls are provided. In some embodiments, a plurality of subsets of seal components are selectively installable in the seal assembly. In some embodiments, one or more fins are included on a seal. 1. A seal assembly for use with an idler roll having an end disc , a recess in the end disc , a bearing at least partially received in the recess , and an idler shaft extending in an axial direction and supporting the bearing outwardly from the shaft along a radial direction normal to the axial direction , the seal assembly comprising: a first annular internal seal wall, said first annular internal seal wall extending generally in the axial direction; and', 'a second annular internal seal wall disposed radially inward of said first annular internal seal wall, said second annular internal seal wall extending generally in the axial direction, said second annular internal seal wall having an internal seal wall annular inner surface and an annular outboard surface;, 'an internal seal at least partially received in the recess of the end disc, said internal seal comprising a first annular external seal wall, said first annular external seal wall extending generally in the axial direction, said first annular external seal wall disposed at least partially radially between said first and second annular internal seal walls, said first annular external seal wall having an external seal wall annular inner surface; and', 'a second annular external seal wall, said second annular external seal wall extending generally radially, said second annular external seal having an inboard surface,, 'an external seal at least partially supported on the idler shaft, said external seal comprisingwherein an inboard portion of said internal seal wall annular inner surface at least partially defines a first annular sealing element volume, said first annular sealing element volume being configured to selectively receive a first annular sealing element therein,wherein an ...

Подробнее
Номер записи: 76
01-08-2019 дата публикации

CHARGING ROLL FOR ELECTROPHOTOGRAPHIC EQUIPMENT

Номер: US20190235409A1
Автор: KANDA Shigeki, SAITO Yoshihiro, WATANABE Yasuhide
Принадлежит: Sumitomo Riko Company Limited

The disclosure provides a charging roll for excellent image quality electrophotographic equipment. This charging roll for electrophotographic equipment is provided with a shaft body, an elastic body layer formed on the outer periphery of the shaft body, and a surface layer formed on the outer periphery of the elastic body layer, wherein the surface layer contains a modifier having polyamide and a hydroxyl group, and has a Bénard cell with a height of 0.1 to 1.0 μm on the surface thereof. A fluorine-based modifier having a hydroxyl group, a silicone-based modifier having a hydroxyl group, and an acrylic modifier having a hydroxyl group can be cited as examples of the modifier having the hydroxyl group. 1an elastic body layer; anda surface layer formed on an outer periphery of the elastic body layer,wherein the surface layer contains polyamide and a modifier having a hydroxyl group,the modifier having a hydroxyl group is a fluorine-based modifier, andthe surface layer has Bénard cells with a height of 0.1 to 1.0 μm on a surface thereof,the surface layer contains roughness-forming particles having an average particle diameter within a range of 3.0 to 30 μm, anda size of the Bénard cells is within a range of 250 to 1100 μm.. A charging roll for electrophotographic equipment, comprising: This application is a continuation application of International Application number PCT/JP2018/005668, filed on Feb. 19, 2018, which claims the priority benefit of Japan Patent Application No. 2017-030595, filed on Feb. 22, 2017. The entirety of each of the above-mentioned patent applications is hereby incorporated by reference herein and made a part of this specification.The disclosure relates to a charging roll for electrophotographic equipment and a method for manufacturing a charging roll for electrophotographic equipment, and the charging roll for electrophotographic equipment is suitably used in electrophotographic equipment such as a copier, a printer, and a facsimile, which employ ...

Подробнее
Номер записи: 77
17-09-2015 дата публикации

Interchangeable massage roller system

Номер: US20150257969A1
Автор: Eric Shannon
Принадлежит: HEALTH SAVVY LLC

One embodiment of an interchangeable massage roller system ( 1 ) provides low-profile, interchangeable support bases ( 6 ) for supporting the roller ( 4 ) at different heights above the floor ( 22 ) and provides interchangeable sleeves ( 3 ) fitting over the roller ( 4 ), cushioning it according to the user's needs. An afflicted area of the body may be rolled on top of the roller system ( 1 ) without any interference from the low-profile base ( 6 ) to alleviate the pain and discomfort associated with muscle or connective tissue ailments. Variations in the type of base ( 6 ), massage body ( 4 ) and sleeve ( 3 ) used, allow the user to reconfigure the roller system ( 1 ) to maximize performance according to the body part and injury being massaged.

Подробнее
Номер записи: 78
20-11-2014 дата публикации

DEVICE FOR REDUCING PRESSURE IN HOLLOW BODIES IN MEDIA AT HIGHER TEMPERATURES

Номер: US20140341493A1
Автор: Adler Joerg, Blumenau Marc, Eisner Frank, Gusek Christopher, Heymer Heike, HUELSTRUNG Joachim, Jendrischik Gerd, Jindra Fred, Kovac Markus, Peitz Alfred, Schoenenberg Rudolf, Willeke Bert-Heiner
Принадлежит:

The invention relates to the field of materials science and to a device for reducing pressure in cavities in media at higher temperatures, such as those devices which can be used for devices for hot-dip coating metal materials in the metal processing industry for example. The aim of the invention is to provide a device by means of which pressure can be reduced in the cavity of the hollow bodies in a reliable and controlled manner and simultaneously the penetration of the media can be delayed or completely prevented at the higher temperatures. This is achieved by a device for reducing pressure in hollow bodies in media at higher temperatures, wherein at least one opening to the cavity of the hollow body is provided in hollow body regions which are not used for the intended application, said opening being closed from the medium surrounding the hollow body by at least one component made of a gas-permeable metal or ceramic material. 1. Device for reducing pressure in hollow bodies in media at higher temperatures in which at least one opening to the hollow space of the hollow body is present in regions of the hollow bodies that do not serve the intended use , which opening is sealed against the surrounding medium of the hollow body by at least one component of a gas-permeable metal or ceramic material.2. Device according to in which metal hollow bodies are present.3. Device according to in which rollers of hot-dip coating systems are present as metal hollow bodies.4. Device according to in which the hollow bodies are present in molten materials claim 1 , liquids claim 1 , and/or gases at temperatures at least above the melting point and/or softening point of the materials.5. Device according to in which the hollow bodies are present in molten materials of metals or metal alloys claim 1 , glasses claim 1 , or polymers.6. Device according to in which the component is arranged in side regions and/or bearing regions.7. Device according to in which the component in the case ...

Подробнее
Номер записи: 79
30-07-2020 дата публикации

EXPANSION CONSTRAINT ASSEMBLY AND RELATED METHODS

Номер: US20200240710A1
Автор: RAUCH EDWIN L.
Принадлежит: Novelis Inc.

An expansion constraint assembly can be attached to the exterior of a kiln cylinder. The expansion constraint assembly may include an outer constraining structure, an inner circular structure, and support structures extending between the inner circular structure and the outer constraining structure. The support structures may extend at an offset angle away from a radial direction of the outer constraining structure. The expansion constraint assembly may also include additional rings disposed between the inner circular structure and the outer constraining structure. The expansion constraint assembly can constrain asymmetric expansion of the kiln cylinder, for example, by relieving uniform expansion as a rotational shift, while restraining asymmetric expansion via tensile and compressive stresses in inter-connecting members. 1. A rotary kiln system , comprising:a rotator;a heating system; a central axis;', 'an exterior kiln cylinder surface;', 'a cross-sectional thickness urged toward variable expansion in a radial direction of the kiln cylinder and responsive to a variable thermal profile resulting from heat provided within the kiln cylinder by thermal actions or reactions of material being processed or from the heating system;', 'a collar axially aligned with the central axis and receiving at least one portion of the kiln cylinder; and, 'a kiln cylinder rotatable by the rotator, the kiln cylinder in communication with the heating system to provide heat into the kiln cylinder, the kiln cylinder comprising an outer constraining structure; and', 'a plurality of support structures, each extending between an interior of the outer constraining structure and the exterior kiln cylinder surface, each arranged at an offset angle away from the radial direction of the outer constraining structure, and each anchored to the exterior kiln cylinder surface and the outer constraining structure., 'an expansion constraint assembly axially aligned with the central axis and disposed ...

Подробнее
Номер записи: 80
13-09-2018 дата публикации

Connective unit to connect a roller with a seat's leg

Номер: US20180257431A1
Автор: Wen-Chin Cheng
Принадлежит: Wen-Chin Cheng

A connective unit to connect a roller with a seat's leg is disclosed. The connective unit comprises a supportive arm, a plastic cylindrical member, a pivotally connective member and a roller. The plastic cylindrical member may engage with a cylindrical hole provided in the supportive arm. The upper end of the pivotally connective member may engage with a first connective hole and the lower end of the pivotally connective member may engage with a second connective hole of the roller. Thanks to presence of the plastic cylindrical member, when the pivotally connective member rotates and causes the roller to rotate with it, the supportive arm doesn't have any contact with the pivotally connective member and thus noisy friction and impacts between them as in the prior art may be avoided. Therefore, the plastic cylindrical member is difficult to wear out as the pivotally connective member rotates.

Подробнее
Номер записи: 81
06-08-2020 дата публикации

BEARINGS

Номер: US20200248741A1
Автор: Church Kynan, Weiss Asa
Принадлежит: Hewiett-Packard Development Compaany , L.P.

A bearing includes a body that defines a first arcuate support surface and a second arcuate support surface. The first and second arcuate support surfaces are to cradle a rotatable circular shaft against a net radial load that is to act on the shaft. The first arcuate support surface has a radius of curvature larger than a radius of the shaft. The second arcuate support surface has a radius of curvature larger than the radius of the shaft. The first and second arcuate support surfaces are positioned on opposite sides of a direction of action of the net radial load. 1. A bearing comprising:a body that defines a first arcuate support surface and a second arcuate support surface, the first and second arcuate support surfaces to cradle a rotatable circular shaft against a net radial load to act on the shaft;the first arcuate support surface having a radius of curvature larger than a radius of the shaft;the second arcuate support surface having a radius of curvature larger than the radius of the shaft;the first and second arcuate support surfaces positioned on opposite sides of a direction of action of the net radial load.2. The bearing of claim 1 , wherein the radius of curvature of the first arcuate support surface and the radius of curvature of the second arcuate support surface are about equal.3. The bearing of claim 1 , wherein the radius of curvature of the first arcuate support surface and the radius of curvature of the second arcuate support surface are unequal.4. The bearing of wherein one or both of the radiuses of curvature of the first arcuate support surface and the second arcuate support surface is greater than about 1.1 times the radius of the shaft and is smaller than about 1.3 times the radius of the shaft.5. The bearing of claim 1 , wherein the firstarcuate support surface and the second arcuate support surface are symmetrical about a line extending through a center of an opening in the body that accommodates the shaft.6. The bearing of claim 1 , ...

Подробнее
Номер записи: 82
04-12-2014 дата публикации

ROLLER, DEVELOPING ROLLER, DEVELOPING DEVICE, PROCESS CARTRIDGE, AND IMAGE FORMING APPARATUS

Номер: US20140356031A1
Автор: Abe Hiroya, Arai Yuusuke, Fukutomi Soichiro, Innami Takashi, Kamiya Noriyuki, Moro Yuki, Nakayama Masashi, Suzuki Rei
Принадлежит: RICOH COMPANY, LTD.

A roller includes a cylindrical body having openings on both ends thereof and a press-fit member fitted in at least one of the openings of the cylindrical body with an outer circumferential face thereof in contact with an inner face of the cylindrical body. The outer circumferential face of the press-fit member is grooved obliquely to an axis of the cylindrical body, and the inner face of the cylindrical body is smooth at least in a portion that contacts the outer circumferential face of the press-fit member. 1. A roller comprising:a cylindrical body having openings on both ends thereof; anda press-fit member fitted in at least one of the openings of the cylindrical body with an outer circumferential face thereof in contact with an inner face of the cylindrical body,wherein the outer circumferential face of the press-fit member is grooved obliquely to an axis of the cylindrical body, andthe inner face of the cylindrical body is smooth at least in a portion that contacts the outer circumferential face of the press-fit member.2. The roller according to claim 1 , wherein at least a single spiral groove is in the outer circumferential face of the press-fit member.3. The roller according to claim 1 , wherein multiple grooves oblique to the axis of the cylindrical body are in the outer circumferential face of the press-fit member.4. The roller according to claim 1 , wherein the press-fit member receives rotational driving force to rotate the roller around the axis claim 1 , and the outer circumferential face of the press-fit member is grooved in a direction such that he press-fit member enters the cylindrical body with rotation of the roller by the rotational driving force.5. A developing roller comprising:a cylindrical body to bear developer on a circumferential face thereof, the cylindrical body having openings on both ends thereof; anda press-fit member fitted in at least one of the openings of the cylindrical body with an outer circumferential face thereof in contact ...

Подробнее
Номер записи: 83
22-08-2019 дата публикации

FLEXIBLE DISPLAY

Номер: US20190261520A1
Автор: Cao Lei, JIN Hailan, REN Yan, WANG Zifeng
Принадлежит: BOE Technology Group Co., Ltd.

A flexible display is disclosed. The flexible display includes: a roller, an external wall of the roller is provided with an opening; a first rotating shaft rotatably connected with the roller; and a flexible display screen configured to protrude from the roller or withdraw into the roller through the opening, the flexible display screen has a movable first end and a second end fixed at the first rotating shaft, the first end and the second end are opposite to each other. 1. A flexible display , comprising:a roller, an external wall of the roller being provided with an opening;a first rotating shaft rotatably connected with the roller; anda flexible display screen configured to protrude from the roller or withdraw into the roller through the opening, the flexible display screen having a movable first end and a second end fixed at the first rotating shaft, the first end and the second end being opposite to each other.2. The flexible display according to claim 1 , further comprising:at least one second rotating shaft rotatably connected with the roller;a frame on at least one side edge of the flexible display screen, whereinthe frame has a first end fixedly connected with the first end of the flexible display screen and a second end fixed at the second rotating shaft, andthe frame is configured to flatten the side edge where the frame is located upon the flexible display screen protruding from the roller, and is configured to be separated from the flexible display screen and rolled onto the second rotating shaft upon the flexible display screen withdrawing into the roller, whereinthe side edge is an edge of the flexible display screen except the first end and the second end.3. The flexible display according to claim 2 , wherein every side edge of the flexible display screen is provided with the frame.4. The flexible display according to claim 3 , wherein the frame comprises:a plurality of first flattening units rotatable with each other; anda locking mechanism ...

Подробнее
Номер записи: 84
27-08-2020 дата публикации

BEARING BLOCK FOR HOLDING A BEARING FOR A ROLLER

Номер: US20200269311A1
Автор: BANSE Robert, Reifferscheid Markus
Принадлежит:

A bearing block for holding a bearing for a roller, in particular a strand-guiding roller in a strandguiding device. The bearing block is designed as a solid casting having an integrated internal coolant channel. The coolant channel has an inlet and an outlet for coolant. In order to enable an improvement in the product quality of the cast slabs, the bearing block has a rotational speed sensor for sensing the rotational speed of the roller. 19-. (canceled)10. A bearing block for holding a bearing for a roller , in particular a strand-guiding roller in a strand-guiding device , comprising:at least one integrated coolant channel with an inlet and an outlet for coolant, wherein the bearing block with the integrated interior coolant channel is configured as a solid casting;a rotational speed sensor for detecting rotational speed of the roller; andtemperature sensors for detecting temperature of the coolant in the coolant channel, whereinthe temperature sensors are configured as thermocouples, including a first thermocouple provided in the inlet to detect the coolant inlet temperature, and a second thermocouple provided in the outlet of the coolant channel to detect the coolant outlet temperature.11. The bearing block according to claim 10 , wherein the rotational speed sensor is a Hall sensor.12. The bearing block according to claim 11 , further comprising a plurality of magnets fastened to a neck of the roller to cooperate with the Hall sensor.13. The bearing block according to claim 10 , further comprising a blind hole introduced externally into the bearing block claim 10 , the rotational speed sensor being mounted in the blind hole.14. The bearing block according to claim 10 , wherein the thermocouples are screw-in thermocouples that are screwed into bores claim 10 , one in the inlet and one in the outlet claim 10 , of the coolant channel.15. The bearing block according to claim 10 , further comprising at least one stabilizing rib in the coolant channel.16. The ...

Подробнее
Номер записи: 85
11-10-2018 дата публикации

Roller, Roller Device, Link Chain, and use of a Link Chain as a Conveying Chain

Номер: US20180290836A1
Автор: Christian HANEMANN, Frank PADBERG
Принадлежит: Ketten Wulf Betriebs GmbH

A roller device comprises: an attachment bolt; a roller mounted on the attachment bolt, wherein the roller is configured as a roller unit including at least one attachment bush, a bearing, and a roller; and a fastening system to releasably fasten the bush of the roller unit to the attachment bolt. The fastening system comprises a clip fastening system to mount the roller unit on the attachment bolt without using tools. The clip fastening system comprises a radially encircling groove in the inner surface of the attachment bush, a radially encircling groove in the surface of the attachment bolt, and a flexible securing ring.

Подробнее
Номер записи: 86
29-10-2015 дата публикации

DRIVER ROLLER OF A WINDING DEVICE OF A ROLLING MILL, AND METHOD FOR PRODUCING SAME

Номер: US20150308493A1
Автор: Frauenhuber Klaus, Moser Friedrich, SCHIEFER Juergen, STADLMAIR Johann
Принадлежит: PRIMETAL TECHNOLGIES AUSTRIA GMBH

A driver roller () having a rolling body () and at least one axle shaft journal (). The at least one axle shaft journal () is fixed to the rolling body () indirectly via at least one support element (), which is fixed to the rolling body (), by means of removable connecting means. The at least one axle shaft journal () is arranged such that the longitudinal axis of the journal is coaxial to the longitudinal axis of the rolling body (), and the axle shaft journal is a separate component. The support element () has the shape of a ring or a disk with a groove () in an end wall of the ring- or disk-shaped support element (). The support element () has a flange () on which the axle shaft journal () is flange-mounted. Such a driver roller can be easily assembled from modules, thereby simplifying maintenance and storage. 1. A drive roller , comprising:a roller body module;at least one stub axle shaft module, which is a separate component from the roller body module, the axles are arranged so that a longitudinal axis of the at least one stub axle shaft module is coaxial with a longitudinal axis of the roller body module and the at least one stub axle shaft module is affixed indirectly to the roller body module through at least one carrier element module; andthe at least one carrier element module being affixed to the roller body module detachable fixing arrangements onto the roller body module, wherein the carrier element module has a ring- or disk-shape, with a groove in an end face of the ring- or disk-shaped carrier element module, and the carrier element module comprises a flange, onto which the stub axle shaft module is flanged.2. The drive roller as claimed in claim 1 , wherein the groove is a circular groove.330. The drive roller as claimed in claim 1 , wherein the groove () runs concentrically with an axis of rotation of the carrier element module.4. The drive roller as claimed in claim 1 , wherein a central area of the carrier element module which is bounded by the ...

Подробнее
Номер записи: 87
05-11-2015 дата публикации

METHOD FOR PRODUCING ROLLER FOR OFFICE AUTOMATION EQUIPMENT

Номер: US20150314504A1
Автор: IKEDA Yoshitaka, KIZAWA Kazuhiro, Onmori Naoki
Принадлежит:

Provided is a method for producing a roller for OA equipment, with which a roller that degrades the quality of an image is not easily produced even in the case of using a fluororesin tube stored in a folded state. The method includes a close-contact step of inserting a fluororesin tube into a cylindrical mold, ensuring airtightness between the tube and an inner surface of the cylindrical mold, and subsequently performing deaeration to bring the tube into close contact with the inner surface of the cylindrical mold; a primer layer-forming step of applying an adhesive onto an inner surface of the tube that is brought into close contact with the inner surface of the cylindrical mold to form a primer layer; and a rubber layer-forming step of, after the formation of the primer layer, inserting a core bar into the cylindrical mold along a central axis of the cylindrical mold, injecting a rubber material into a gap formed between the inserted core bar and the tube, and subsequently vulcanizing the rubber material to form a rubber layer. The cylindrical mold and the tube used in the method satisfy a condition that a difference between an inner diameter of the cylindrical mold and an outer diameter of the tube is 3% to 10% of the inner diameter of the cylindrical mold. 1. A method for producing a roller for OA equipment , the roller including a core bar , a rubber layer formed on the core bar , and a fluororesin surface layer formed on the rubber layer , the method comprising:a close-contact step of inserting a fluororesin tube into a cylindrical mold, ensuring airtightness between the tube and an inner surface of the cylindrical mold, and subsequently performing deaeration to bring the tube into close contact with the inner surface of the cylindrical mold;a primer layer-forming step of applying a primer onto an inner surface of the tube that is brought into close contact with the inner surface of the cylindrical mold to form a primer layer; anda rubber layer-forming step of ...

Подробнее
Номер записи: 88
26-09-2019 дата публикации

ROLLER ASSEMBLY FOR STORAGE DEVICE

Номер: US20190293113A1
Автор: PARK Yongwoon
Принадлежит:

Provided is a roller assembly for a storage device. The roller assembly includes a shaft member, a rolling member, a cover member, and ball members. In particular, the ball members are configured to perform a rolling operation while being maintained in the state of being seated at specific locations by a seating groove formed in the shaft member and guide grooves formed in the rolling member and the cover member, and the rolling member and the cover member are configured to be coupled to each other by a fitting method and are then completely coupled to each other through laser bonding. The roller assembly is additionally characterized in that the damage of the ball members is prevented from occurring during the above laser bonding. 1. A roller assembly for a storage device , the roller assembly comprising:a shaft member including a head portion configured such that the head portion forms a head part and a seating groove is depressed into a circumferential surface thereof and a coupling portion configured to extend backward from the head portion and to be engaged with a counterpart object;a rolling member configured to be formed in a cylindrical shape forming a rolling part, and configured such that a front side portion of an inner circumferential surface thereof is formed to surround a part of a front side of the head portion constituting a part of the shaft member and a coupling groove is depressed into a rear side portion of the inner circumferential surface in a stepped form;a cover member configured to be seated onto the coupling groove of the rolling member, and configured such that an inner circumferential surface thereof is formed to surround a part of a rear side of the head portion constituting a part of the shaft member; andball members configured such that circumferential surfaces thereof are partially seated on opposite surfaces of the shaft member and the rolling and cover members and the ball members perform a rolling operation;wherein guide grooves ...

Подробнее
Номер записи: 89
05-11-2015 дата публикации

BEARING ASSEMBLY AND PARABOLIC-TROUGH SOLAR POWER PLANT HAVING SUCH A BEARING ASSEMBLY

Номер: US20150316293A1
Автор: Behn Markus, BREUNIG Heinz, Herbst Hubert, Kern Henning, LIESEGANG Hnas-Jürgen, NOETH Mathias, Pfeuffer Christina
Принадлежит:

A parabolic-trough solar power plant includes at least one solar panel that has a shaft part supported by at least one bearing assembly configured to pivot the solar panel through a pivot angle about the longitudinal axis. The bearing assembly includes a support element with two support sections and a space therebetween, a chain element supported by the support sections, and a plurality of roller elements supported in the chain element along its longitudinal extension for rotation about an axis of rotation parallel to the longitudinal axis. Ends of the chain element are attached to the support sections by bearings that permit pivoting of the chain element relative to the support sections about a compensation axis horizontal, and in projection, perpendicular to the longitudinal axis of the shaft part. The roller elements are disposed at hinge points between pairs of the links in the chain. 1. A parabolic-trough solar power plant comprising at least one solar panel having a shaft part having a longitudinal axis , the shaft part being supported by at least one bearing assembly , wherein the bearing assembly is configured to pivot the solar panel through a pivot angle range about the longitudinal axis wherein the bearing assembly comprises:a support element, which includes two vertically extending support sections, wherein a receiving space for receiving the shaft part is formed between the two support sections,a chain element that is supported with its two ends in the upper end region of the support section,a plurality of roller elements, which are supported in the chain element along its longitudinal extension, wherein the roller elements are supported in the chain element about an axis of rotation parallel to the longitudinal axis, and wherein the roller elements are configured to support a circumferential section of a shaft section of the shaft part,wherein the upper ends of the chain element are each attached to the support section by a bearing, and the bearing ...

Подробнее
Номер записи: 90
25-10-2018 дата публикации

ROTATING MEMBER, SHEET TRANSPORT DEVICE, FIXING DEVICE, AND IMAGE FORMING APPARATUS

Номер: US20180305150A1
Автор: AKATSUKA Masahiro, Kato Yasuhiro, KONISHI Yoshiro, SAKURAI Yusuke, SATO Hideki, Sawamura Jun, UKAWA Takayuki
Принадлежит: FUJI XEROX CO., LTD.

A rotating member includes a rotating-member body, identification information, and a holding member. The rotating-member body having a cylindrical or columnar shape has one end portion and an outer circumferential surface and is to be rotated. The identification information is provided at the one end portion on the outer circumferential surface of the rotating-member body. The holding member is provided at the one end portion of the rotating-member body, holds the rotating-member body, and has an inner circumferential surface in part of which a space not to be in contact with the outer circumferential surface of the rotating-member body is provided. The identification information is disposed in the space of the holding member. 1. A rotating member comprising:a cylindrical or columnar rotating-member body that has one end portion and an outer circumferential surface and that is to be rotated;identification information provided at the one end portion on the outer circumferential surface of the rotating-member body; anda holding member that is provided at the one end portion of the rotating-member body, that holds the rotating-member body, and that has an inner circumferential surface in part of which a space not to be in contact with the outer circumferential surface of the rotating-member body is provided,wherein the identification information is disposed in the space of the holding member.2. The rotating member according to claim 1 ,wherein the holding member includes at least one first projection that is disposed on the inner circumferential surface of the holding member and that is to be in contact with the outer circumferential surface of the rotating-member body.3. The rotating member according to claim 2 ,wherein the at least one first projection includes a plurality of first projections arranged in a circumferential direction of the holding member.4. The rotating member according to claim 2 ,wherein the holding member includes a second projection on the inner ...

Подробнее
Номер записи: 91
03-12-2015 дата публикации

FLUID BEARINGS

Номер: US20150345556A1
Автор: BELKE Jeffrey Victor, BRAITHWAITE DANIEL, GREEN Nicholas John, HARRISON Oscar, TATE Chris, VAAGE Knut
Принадлежит: OUTOTEC (FINLAND) OY

The present invention provides improvements to a fluid bearing () for a journal (), one being a polymer bearing pad () comprising an outer surface (), at least one recess () for receiving lubricating fluid from a base () of said fluid bearing and distributing said lubricating fluid to said outer surface and a mounting means (A) for securely mounting said polymer bearing pad to said base. Other improvements include a fluid bearing () comprising the polymer bearing pad (), methods of making the polymer bearing pad and fluid bearing, a fluid bearing comprising a polymer bearing pad () having a chamfer () and a multidirectional fluid bearing (). 152.-. (canceled)53. A bearing assembly for supporting a journal of a grinding mill body , comprising a frame and a plurality of fluid bearings , said fluid bearings each comprising a polymer bearing pad mounted to a base , said polymer bearing pad comprising an outer surface , at least one recess for receiving lubricating fluid from at least one passage of said base and distributing said lubricating fluid to said outer surface and mounting means for securely mounting said polymer bearing pad to said base , said base also comprising at least one lubricating fluid supply port in fluid communication with said at least one passage , wherein said base is mounted to said frame so that said fluid bearings self adjust to changes in the angular position of the journal during operation of said grinding mill body.54. A bearing assembly for supporting a journal of a grinding mill body , comprising a frame and a plurality of fluid bearings , said fluid bearings each comprising a polymer bearing pad mounted to a base , said polymer bearing pad comprising an outer surface , at least one recess for receiving lubricating fluid from at least one passage of said base and distributing said lubricating fluid to said outer surface and mounting means for securely mounting said polymer bearing pad to said base , said base also comprising at least one ...

Подробнее
Номер записи: 92
30-11-2017 дата публикации

ROLLER FOR DEFLECTING OR GUIDING A METAL STRIP, WHICH IS TO BE COATED, IN A METAL MELT BATH

Номер: US20170343040A1
Автор: Jendrischik Gerd, Matzken Frank, Peitz Alfred, Peters Michael
Принадлежит:

A roller for deflecting or guiding a metal strip to be coated in a metal melt bath may include bearing journals disposed coaxially with one another for rotationally supporting the roller. To obtain a high coating quality while hot-dip coating the metal strip, in particular steel strip, and to increase the service life of such a roller, each bearing journal may comprise a plurality of axially spaced annular elevations that have or are formed from a plain-bearing coating. The roller may comprise a steel roller shell, and each bearing journal may include a substantially cylindrical or circular-disk-shaped connecting steel portion that extends radially in the direction of the roller shell. At least one of the connecting portions may comprise a passage opening at an end face of the roller shell. The passage may be closed by means of a gas-permeable plug element comprised of ceramic material.” 111.-. (canceled)12. A roller for deflecting or guiding a metal strip to be coated in a metal melt bath , the roller comprising bearing journals that provide rotational support for the roller and are positioned coaxially with one another , wherein each of the bearing journals comprises axially-spaced annular elevations that either have or are formed from a plain-bearing coating , wherein the plain-bearing coating in an area of the axially-spaced annular elevations is radially raised relative to a circumferential surface of each of the bearing journals.13. The roller of wherein the plain-bearing coating is at least one of molybdenum-based claim 12 , tungsten-based claim 12 , or chromium-based.14. The roller of wherein the plain-bearing coating in the area of the axially-spaced annular elevations is radially raised to the circumferential surface by 0.1 mm to 1.0 mm.15. The roller of wherein the plain-bearing coating in the area of the axially-spaced annular elevations is radially raised to the circumferential surface by 0.1 mm to 0.5 mm.16. The roller of wherein the plain-bearing ...

Подробнее
Номер записи: 93
17-12-2015 дата публикации

SEMICONDUCTIVE ROLLER

Номер: US20150362854A1
Автор: TAJIMA Kei
Принадлежит: SUMITOMO RUBBER INDUSTRIES, LTD.

An inventive semiconductive roller includes a tubular semiconductive rubber layer () rotatable in a rotation direction, the semiconductive rubber layer having a multiplicity of minute projections () provided in circumferentially and axially discrete relation on an outer peripheral surface () thereof, the minute projections each having an apex () located forward (F) in the rotation direction and two edges () extending from the apex rearward (R) in the rotation direction obliquely with respect to the rotation direction so that the projections are each flared with a width (w) thereof progressively increasing in a rearward direction (R) from the apex () as measured axially of the semiconductive roller. 1. A semiconductive roller comprising:at least one tubular semiconductive rubber layer made from a semiconductive rubber composition and circumferentially rotatable in one rotation direction;the semiconductive rubber layer having a multiplicity of minute projections provided in circumferentially and axially discrete relation on an outer peripheral surface thereof; andthe minute projections each having a surface shape which has an apex located forward in the rotation direction and two edges extending from the apex rearward in the rotation direction obliquely with respect to the rotation direction so that the projections are each flared with a width thereof progressively increasing in a rearward direction from the apex as measured axially of the semiconductive roller.2. The semiconductive roller according to claim 1 , which has an oxide film provided in the outer peripheral surface.3. The semiconductive roller according to claim 1 , which is incorporated as a charging roller in an electrophotographic image forming apparatus for electrically charging a surface of a photoreceptor body.4. A method for producing a semiconductive roller as recited in claim 1 , the semiconductive roller production method comprising:rotating a semiconductive rubber layer having an outer peripheral ...

Подробнее
Номер записи: 94
15-12-2016 дата публикации

AIR BEARING STRUCTURE

Номер: US20160363165A1
Автор: Ho Chang-Cheng, LIN Yun Wei, YEN Yu An
Принадлежит:

An air bearing structure, which is a porous air bearing. In the air bearing structure, a porous material is combined with an aluminum layer with vents to provide double restrictions so as to enhance the degree of freedom in adjusting the diameter parameter of porous material. The vents are distributed in a matrix pattern and have a diameter of nanometer order. Therefore, the uniformity of the vents and the unification of the infiltration can be ensured. Also, the vents can be directed in the same direction to enhance the bearing ability, air film stability and static rigidity. 1. An air bearing structure comprising:a porous main body having a base section and an air cavity formed in the base section, the air cavity being composed of multiple voids formed in the base section in communication with each other; anda throttling layer section disposed on one face of the porous main body, the throttling layer section being formed of an aluminum layer having multiple vents with predetermined length, the vents passing through the aluminum layer and being directed in the same direction in communication with the air cavity.2. The air bearing structure as claimed in claim 1 , wherein the aluminum layer is formed on the face of the porous main body by means of physical vapor deposition (PVD).3. The air bearing structure as claimed in claim 1 , wherein the vents are formed by a means selected from a group consisting of ultrasonic machining (USM) claim 1 , electrochemical machining (ECM) claim 1 , electrical discharge machining (EDM) claim 1 , laser beam machining (LBM) or electronic beam machining (EBM) and anodic oxidation process (AAO) or the like micro-hole machining method.4. The air bearing structure as claimed in claim 1 , wherein the aluminum layer has a thickness ranging from 3 to 5 micrometers (μm).5. The air bearing structure as claimed in claim 1 , wherein the vents are arranged in the aluminum layer at equal intervals with a size ranging 250 to 450 nanometers (nm).6. ...

Подробнее
Номер записи: 95
22-12-2016 дата публикации

SUPPORT BEARING, IN PARTICULAR RUNNING ROLLER

Номер: US20160369846A1
Автор: DRABEK Hans-Joachim, SMOLENSKI Witold Marek, STÖCKER Manfred
Принадлежит: SCHAEFFLER TECHNOLOGIES AG & CO. KG

A support bearing, for example for straighteners, having an outer ring, an inner ring and rolling bodies that roll between the outer and inner ring on raceways. A bending moment prevails between the rings as a result of a load with a fixed direction of action. To compensate for the bending moment, an outer raceway of the inner ring and/or an inner raceway of the outer ring includes a profiling with a variable diameter in the axial direction. The profiling is adapted or approximated to a non-cylindrical bending line caused by the bending moment in the rolling contact, and the bending line is defined by a line, on which bending forces which are transmitted from the inner ring to the rolling bodies and are caused by the bending moment lie substantially perpendicularly. As a result, the disadvantageous edge loading in a given load direction is suppressed, with the result that more rolling bodies can transmit load between the rings at the same time 1. A support bearing comprising an outer ring , an inner ring , and rolling bodies that roll between the outer ring and the inner ring on raceways thereof , wherein a bending moment between the rings is applied by a load with a fixed effective direction , wherein at least one of the raceway on an outer surface of the inner ring or the raceway on an inner surface of the outer ring has a profiling with a diameter (D) that changes in an axial direction , the profiling is at least approximately equal to a bending line in rolling contact caused by the bending moment and the bending line is a line that is essentially perpendicular to the bending forces transmitted by each of the ring to the rolling body and caused by the bending moment , and the raceway on the outer surface of the inner ring has , in an area of a load zone (L) in the circumferential direction , a smaller curvature than the raceway of the inner ring outside of the load zone (L).2. A support bearing according to claim 1 , wherein the inner ring is integrated into a ...

Подробнее
Номер записи: 96
05-11-2020 дата публикации

AIR BEARING FOR USE AS SEAL

Номер: US20200347881A1
Автор: Devitt Andrew, Pollick Richard Duane
Принадлежит: NEW WAY MACHINE COMPONENTS, INC.

In order to effect a seal a porous material which comprises one side of two opposing surfaces is used to restrict and evenly distribute externally pressurized gas, liquid, steam, etc. between the two surfaces, exerting a force which is opposite the forces from pressure differences or springs trying to close the two faces together and so may create a non-contact seal that is more stable and reliable than hydrodynamic seals currently in use. A non-contact bearing is also disclosed having opposing surfaces with relative motion and one surface issuing higher than ambient pressure through a porous restriction, wherein the porous restriction is part of a monolithic porous body, or a porous layer, attached to lands containing a labyrinth, the porous restriction and lands configured to not distort more than 10% of a gap created from differential pressure between each side of the porous restriction. 122-. (canceled)23. An assembly for providing electrical contact between rotating and stationary components , the assembly comprising:a brush comprised of a porous media member including a face which contacts an opposing member; anda spring which applies a force against the brush,wherein the porous media member is an externally-pressurized porous gas bearing with porous restriction, and is configured to receive externally-pressurized gas, whose pressure is adjustable, which acts against the spring force such that an external pressure, by the externally-pressurized gas, multiplied by the contact area is less than the spring force, resulting in an adjustable contact pressure between the brush and the opposing member.24. The assembly of claim 23 , wherein the assembly includes a holder which holds the porous media member.25. The assembly of claim 24 , wherein the spring applies the force to the holder.26. The assembly of claim 24 , wherein the externally-pressurized gas is configured to be introduced into the porous media member through an orifice in the holder.27. The assembly of ...

Подробнее
Номер записи: 97
21-11-2019 дата публикации

Roller structure and method of manufacturing same

Номер: US20190353202A1
Автор: Ting-Jui Wang
Принадлежит: Fivetech Technology Inc

A roller structure includes a roller having an axial hole and an axle portion disposed in the axial hole to allow the roller to rotate about the axle portion; a sleeve with an end disposed at an end of the axle portion and another end having a fitting portion, the fitting portion being fitted to a carried object, the sleeve has a first blocking portion positioned proximate to a side of the roller to allow the roller to rotate between the first blocking portion and the fitting portion, wherein one of the axle portion, the axial hole and the first blocking portion has a substance conducive to reduction of friction between the roller and the sleeve. A method of manufacturing the roller structure is further introduced.

Подробнее
Номер записи: 98
28-12-2017 дата публикации

SLIDING BEARING, DRIVING DEVICE, AND IMAGE FORMING APPARATUS

Номер: US20170370408A1
Автор: AMEMIYA Masaki, LI ZHAOTONG, TOMITA Norio
Принадлежит:

A sliding bearing is made of a resin and includes a tubular portion that includes an outer peripheral surface including a D-cut surface. A flange portion, which protrudes from the D-cut surface, is formed at one end portion of the tubular portion. An engagement portion is formed at the other end portion of the tubular portion. A protruding portion is formed on the outer peripheral surface of the tubular portion at a circumferential position that is outside a region in which the D-cut surface is formed and that is outside a region in which the engagement portion is formed. 1. A sliding bearing inserted in a through-hole and made of a resin , the through-hole formed in a support plate , the sliding bearing comprising:a tubular portion including an outer peripheral surface, the outer peripheral surface including a D-cut surface;a flange portion formed at one end portion of the tubular portion and protrudes from the D-cut surface;an engagement portion protruding from a part of the outer peripheral surface of the tubular portion at another end portion of the tubular portion; anda protruding portion formed on the outer peripheral surface of the tubular portion at a circumferential position, the circumferential position being outside a region in which the D-cut surface is formed and being outside a region in which the engagement portion is formed.2. The sliding bearing according to claim 1 ,wherein the circumferential position of the protruding portion is opposite to a circumferential position of the engagement portion.3. The sliding bearing according to claim 1 ,wherein the protruding portion has a rib shape extending in an axial direction of the tubular portion.4. The sliding bearing according to claim 1 ,wherein the tubular portion includes slits formed on both sides of the protruding portion, andwherein a claw-like portion is formed between the slits, and the claw-like portion is elastically deformable in a radial direction of the tubular portion.5. The sliding bearing ...

Подробнее
Номер записи: 99
20-12-2018 дата публикации

DISPLAY DEVICE

Номер: US20180366522A1
Автор: Han Wen, LIU Jichuan, Ma Rong
Принадлежит:

The invention provides a display device. The display device including: a driving mechanism; a rolling mechanism; and a flexible display, the flexible display is supported by the rolling mechanism, and the driving mechanism drives the rolling mechanism to roll in cycles. The display device of the present invention can realize rotational display, thereby satisfying the diversified demand of users. 1. A display device , comprising:a driving mechanism;a rolling mechanism; anda flexible display,wherein the flexible display is supported by the rolling mechanism, and the driving mechanism is adapted to drive the rolling mechanism to roll in cycles.2. The display device of claim 1 , wherein claim 1 , the driving mechanism includes: a driving gear claim 1 , a driven gear claim 1 , and a rotational driving part;the rolling mechanism includes a transmission chain;the driving gear and the driven gear are disposed opposing each other;the transmission chain is engaged with the driving gear and the driven gear, and the flexible display is supported by the transmission chain;the rotational driving part is disposed inside the driving gear, and the rotational driving part is adapted to drive the driving gear to rotate.3. The display device of claim 2 , wherein claim 2 ,a distance between the centers of the driving gear and the driven gear is adjustable, thereby adjusting the curvature of the flexible display.4. The display device of claim 1 , wherein claim 1 ,the driving mechanism includes a driving wheel, a driven wheel and a rotational driving part, the rolling mechanism includes a transmission belt; the driving wheel and the driving wheel are disposed opposing each other, the transmission belt is mounted on the driving wheel and the driven wheel, the flexible display is supported by and fixed to the transmission belt, the rotational driving part is disposed inside the driving wheel, the rotational driving part is used to drive the driving wheel to rotate.5. The display device of ...

Подробнее
Номер записи: 100