HEAT-INSULATING-MATERIAL MAT, IN PARTICULAR FOR BUILDING CONSTRUCTION, AND METHOD FOR PRODUCING THE SAME

The present invention relates to a heat-insulating-material mat () in particular for building construction, which is formed from layers ( etc.) which are arranged loosely one above the other and are made of insulating materials which fuse together exclusively under the heat of a standard flame of a fire test conducted in accordance with standard DIN EN ISO 11925-2 and are held together by means of at least one seam () which is configured in undulating form in the longitudinal direction (X) and/or transverse direction (Y) of the mat () and in the case of which at least one thread () is guided through the layers ( etc.), wherein the undulating form of the seam () is dimensioned such that, constantly changing in position in relation to the local surface area of the standard flame, it moves out of the local flame-treatment surface area. A method for producing heat-insulating-material mats () making use of a multi-needle sewing machine is also claimed. The heat-insulating-material mat () according to the invention, which can be supplied in a variant which is closed to diffusion and in a variant which is open to diffusion, is suitable for insulating static objects such as roofs, walls/facades or floors and also for lining, for example, drivers' cabs, caravans and other means of transport. 1101234313233102021221234313233. a heat-insulating-material mat () in particular for building construction , which is formed from layers ( , , , . . . etc.) which are arranged loosely one above the other and are made of insulating materials which fuse together exclusively under the heat of a norm flame of a fire test conducted in accordance with standard DIN EN ISO 11925-2 and are held together by means of at least one seam ( , ,) which is configured in undulating form in the longitudinal direction (X) and/or transverse direction (Y) of the mat () and in the case of which at least one thread ( , ,) is guided through the layers ( , , , , . . . etc) , wherein the undulating form of seam ( ...

Sewing machine

Disclosure relates to sewing machine capable of preventing thread cutting or deterioration caused by interference between leading end of needle and upper thread, that includes: head frame; needle bar supported on head frame to be movable up and down; needle having needle hole that penetrates in transverse direction with respect to axial line and has upper thread inserted thereinto and be coupled to lower end of needle bar to move up and down between lowered stitching position and lifted needle position; and presser foot unit having pressing part that is provided with needle guide hole through which needle passes and moves up and down between downward pressing height position where pressing part presses sewing material and lifting release height position where pressing part is lifted and spaced apart from sewing material and pressing foot arm that supports pressing part.

NEEDLE PLATE REPLACEMENT DEVICE WITH LOCK

A needle plate replacement device including positioning mechanisms provided in an opposing manner in the needle plate and the bed portion, the positioning mechanisms positioning the needle plate to an attaching position in the bed portion; a lock mechanism including a locking member provided in the bed portion and a locked member provided in the needle plate, in which by mounting the needle plate on the attaching position in the bed portion, the locking member and the locked member is locked to each other thus maintaining a locked state; a push-up mechanism provided in the bed portion, the push-up mechanism pushing up the needle plate mounted on the bed portion towards a dismount position above the bed portion; and a release mechanism cancelling the locked state between the locking member and the locked member of the lock mechanism by being interlocked with an operation of the push-up mechanism. 1. A needle plate replacement device with a lock that attaches and detaches a needle plate on a bed portion of a sewing machine , the needle plate replacement device with a lock comprising:positioning mechanisms that are provided in the needle plate and the bed portion so as to oppose each other, the positioning mechanisms positioning the needle plate to an attaching position in the bed portion;a lock mechanism including a locking member provided in the bed portion and a locked member provided in the needle plate, wherein by mounting the needle plate on the attaching position in the bed portion, the locking member and the locked member are locked to each other and a locked state is maintained;a push-up mechanism that is provided in the bed portion, the push-up mechanism pushing up the needle plate that is mounted on the bed portion towards a dismount position above the bed portion; anda release mechanism that cancels the locked state between the locking member and the locked member of the lock mechanism by being interlocked with an operation of the push-up mechanism.2. The ...

SEWING NEEDLE HOLDING DEVICE

This sewing needle holding device () is provided with: a holder () which holds the base end side of a sewing needle () provided with, from the leading end side toward the base end side in the extension direction, a small diameter portion (), an outer diameter varying portion (), and a large diameter portion (); and a presser member () which is mounted to the holder (). The holder () causes at least the small diameter portion () and the outer diameter varying portion () of the sewing needle () to protrude from a holder leading-end surface (). The presser member () has a counter portion () that faces the holder leading-end surface (). The counter portion () has formed therein an insertion hole () through which the small diameter portion () can be inserted. At least a part of the insertion hole () is provided with a pressure-receiving surface () that comes into abutment with the outer diameter varying portion (). 1. A sewing needle holding device that holds a sewing needle having a small-diameter portion disposed on a distal side in a direction in which the sewing needle extends , a large-diameter portion disposed on a proximal side and having a larger diameter than the small-diameter portion , and a varying-outer-diameter portion disposed between the small-diameter portion and the large-diameter portion ,the sewing needle holding device comprising a holder configured to hold the proximal side of the sewing needle, and a presser member attached to the holder, whereinthe holder allows at least the varying-outer-diameter portion and the small-diameter portion of the sewing needle to protrude from a holder distal end surface of the holder, andthe presser member has an opposing portion that opposes the holder distal end surface, the opposing portion being provided with an insertion hole allowing the small-diameter portion to be inserted therethrough, and at least part of the insertion hole forms a pressure receiving surface that comes in contact with the varying-outer- ...

SEWING MACHINE PRESSER FOOT

A sewing machine presser foot includes: a presser foot body including an attachment portion attached to a presser bar of a sewing machine, a supporting portion extending downward from the attachment portion , and a pressing portion in which, at a lower end of the supporting portion, a needle guiding hole having a string guiding groove for guiding a string is formed; and a cover member including a groove covering portion that crosses and covers the string guiding groove of the pressing portion, a supporting plate portion formed along the supporting portion continuously from the groove covering portion, and an attachment portion formed at an end of the supporting plate portion so as to be attached to the presser foot body. A right-side portion of the supporting plate portion of the cover member is fixed to the presser foot body A by the attachment portion. 1. A sewing machine presser foot comprising:a presser foot body including an attachment portion attached to a presser bar of a sewing machine, a supporting portion extending downward from the attachment portion, and a pressing portion in which, at a lower end of the supporting portion, a needle guiding hole having a string guiding groove for guiding a string is formed; anda cover member including a groove covering portion that crosses and covers the string guiding groove of the pressing portion, a supporting plate portion formed along the supporting portion continuously from the groove covering portion, and an attachment portion formed at an end of the supporting plate portion so as to be attached to the presser foot body, whereina right-side portion of the supporting plate portion of the cover member fixed to the presser foot body by the attachment portion is configured to be displaced from the supporting portion.2. The sewing machine presser foot according to claim 1 , whereina bent portion provided in the supporting plate portion is formed to be bent in such a direction that the supporting plate portion is ...

THROAT PLATE SWITCHING MECHANISM

A throat plate switching mechanism includes a first throat plate and a second throat plate. The first throat plate is formed with a first needle hole having an elongated hole shape at a stitch point. The second throat plate is formed with a second needle hole. A width of the second needle hole is narrower than a width of the first needle hole. The second throat plate is equipped in the first throat plate such that the second throat plate is switched into a use position at which the second needle hole overlaps the first needle hole, and a retreated position at which the second throat plate does not cover the first needle hole. 1. A throat plate switching mechanism comprising:a first throat plate that is formed with a first needle hole having an elongated hole shape at a stitch point; anda second throat plate that is formed with a second needle hole,wherein a width of the second needle hole is narrower than a width of the first needle hole, andthe second throat plate is equipped in the first throat plate such that the second throat plate is switched into a use position at which the second needle hole overlaps the first needle hole, and a retreated position at which the second throat plate does not cover the first needle hole.2. The throat plate switching mechanism according to claim 1 ,wherein the first throat plate is equipped with an operating lever which manually moves the second throat plate.3. The throat plate switching mechanism according to claim 2 , further comprising:a shuttle cover that is attachable to and detachable from a throat plate opening which is formed in the first throat plate,wherein the operating lever is mounted on a bottom surface side of the first throat plate, and an operating end portion of the operating lever is disposed so as to be the inner side of the throat plate opening in a plan view,the operating end portion of the operating lever has a convex shape which protrudes upward, 'wherein the operating end portion is fitted to one recess ...

NEEDLE BAR AND SEWING MACHINE

In relation to a sewing machine having a function of rotating a sewing needle in order to prevent occurrence of hitch stitches, there is provided a needle bar that obviates a necessity for an additional rotation mechanism for rotating the sewing needle. A needle bar includes: a needle bar body having a vertically-movable sleeve and a guide bush; a sleeve provided in the needle bar body and having openings, and the like, where balls are to be placed; a cam shaft that has a disc-shaped portion which is provided in the needle bar body, an upper shaft which is provided with a pair of grooves or the like having helical grooves and which is inserted in the sleeve, and a lower shaft which is formed so as to protrude downward from a guide bush; and a joint secured to the lower shaft for securing a sewing needle. 1. A sewing needle bar comprising: a small-diameter portion which is provided at a lower end of the needle bar body and which has a hole opened along an axis line of the needle bar body and', 'a large-diameter portion which is continually provided on an upper side of the small-diameter portion and which has a hole opened larger in diameter than the hole of the small-diameter portion and along the axis line of the needle bar body;, 'a tubular needle bar body including'}a cylindrical sleeve which is inserted in the hole of the large-diameter portion of the needle bar body and which has an opening for placing a ball; a disc-shaped portion which is placed on an upper surface of the small-diameter portion in the needle bar body in a rotatable manner and which has an outer diameter larger than a diameter of the hole of the small-diameter portion,', 'a spindle-shaped upper shaft which is formed upwardly from the upper surface of the disc-shaped portion and remains inserted in the sleeve and whose outer circumferential surface has a clockwise helical groove, and', 'a spindle-shaped lower shaft which is formed downwardly from a lower surface of the disc-shaped portion and ...

Needle mounting device and sewing machine

A needle mounting device mounts a punch needle for needle punching on a needle bar of a sewing machine. The needle mounting device includes an insertion portion, an engaging mechanism, and an affixing portion. The insertion portion has a bar shape and is configured to be inserted into a mounting portion provided in the needle bar for mounting a sewing needle. The engaging mechanism is able to engage with the needle bar at a different position from the insertion portion in an extension direction of the insertion portion. The affixing portion is configured to affix the punch needle.

SEWING MACHINE NEEDLE CLAMPING DEVICE

A sewing machine needle is attached, fixed or exchanged to a needle clamp firmly and easily. The needle clamp for clamping the sewing machine needle has an accommodating recessed part which accommodates a needle shank of the sewing machine needle, a clamp lever which has a clamp arm which engages to the needle shank, is freely opened and closed end is fixed to a clamp lever shaft which is fitted loosely to an elongate hole is bored at the needle clamp for the accommodating recessed part a needle clamp spring which repels elastically the clamp lever to an outer direction of a straight line which links a central point N of the needle shank and a central point of the clamp lever shaft, and the cam is provided in the needle clamp , and the cam follower which engages to the cam is provided in the clamp arm , and the elongate hole has three surfaces that the cam follower climbs over the cam and moves as the movement path of the clamp lever shaft which becomes a rotation center P of the clamp lever. 1. A sewing machine needle clamping device for attaching a sewing machine needle to an accommodating recessed part of a needle clamp , comprising: the accommodating recessed part accommodating a needle shank of the sewing machine needle by joining an attaching flat surface to a bottom portion,', 'a swingable clamp lever having a clamp arm engaging to the needle shank of said sewing machine needle, being freely opened and closed for said accommodating recessed part and being fixed to a clamp lever shaft being fitted loosely into an elongate hole being bored at said needle clamp, and', 'a needle clamp spring repelling elastically said clamp lever to an outer direction of a straight line linking a central point of the needle shank of said sewing machine needle and a central point of said clamp lever shaft, wherein, 'said needle clamp having,'} moving around on a peripheral surface of the needle shank of said sewing machine needle against the elasticity of said needle clamp spring ...

SEWING MACHINE

A sewing machine includes a material sandwiching unit to sandwich two materials having annular edges from above and below while they are stacked so that the material on an inner wheel side is located on the lower side and the material on an outer wheel side is located on the upper side, wherein a part of the material sandwiching unit located above the two materials is vertically movable, the material sandwiching unit includes a curl-removing mechanism to straighten curls occurring on the edges of the two materials, the material sandwiching unit includes inclined parts that serve as the curl-removing mechanism and have edges extending backward from a farther side of the edges toward the edge side at a position where the two materials pass therethrough, and the inclined parts have air ejectors to eject air so as to form airflows that straighten portions of the materials where curls have occurred. 1. A sewing machine comprising:a cylinder unit configured to support two materials having annular edges by being inserted therethrough while they are stacked so that one is located on an inner wheel side and the other is located on an outer wheel side;a stitch plate configured to abut the material on the inner wheel side that is supported by the cylinder unit so as to support it from below;a material presser configured to press the material on the outer wheel side that is supported by the cylinder unit above the stitch plate; anda material sandwiching unit provided on a near side of the stitch plate and the material presser and configured to sandwich the two materials from above and below while they are stacked so that the material on the inner wheel side is located on the lower side and the material on the outer wheel side is located on the upper side, whereina part of the material sandwiching unit that is located above the two materials is vertically movable,the material sandwiching unit comprises a curl-removing mechanism configured to straighten curls occurring on the ...

NEEDLE CLAMP FOR SEWING MACHINE COMPRISING A NEEDLE COOLING DEVICE

A needle clamp () for sewing machine () is provided. The needle clamp () comprises a body () at least partially made of a thermally conductive material and having retaining means () for constraining at least one needle (). The needle clamp comprises a thermoelectric cooling device () directly or indirectly constrained to a portion of said body (). 111002310152. A needle clamp () for sewing machine () , comprising a body () at least partially made of a thermally conductive material and having retaining means () for constraining at least one needle () , wherein the needle clamp () includes a thermoelectric cooling device () directly or indirectly constrained to a portion of said body ().2156772107. The needle clamp () according to claim 1 , wherein said thermoelectric cooling device () has a hot side () and a cold side () claim 1 , said cold side () being directly or indirectly constrained to said portion of said body () allowing heat transfer from said at least one needle () to said cold side ().31252. The needle clamp () according to claim 1 , wherein said portion of said body () on which said thermoelectric cooling device () is constrained is an external surface of the body ().4155. The needle clamp () according to claim 1 , wherein said thermoelectric cooling device () is connected to a control unit for the regulation of said thermoelectric cooling device ().515. The needle clamp () according to claim 4 , wherein said control unit regulates said thermoelectric cooling device () according to a feedback loop control.613112101152. The needle clamp () according to claim 1 , wherein said retaining means () comprise a recessed seat () in said body () for receiving at least part of said needle () therein claim 1 , said seat () having a longitudinal extension according to an axis (A-A′) claim 1 , said thermoelectric cooling device () extending on a portion of said body () of an angle (α) comprised between 0° and 360° in a plane perpendicular to said axis (A-A′).71. The ...

SEWING MACHINE NEEDLE CLAMP

A sewing machine needle clamp includes a seat and a threading element. The seat includes an assembly rod disposed at an upper portion, and an installation groove disposed at one side away from the assembly rod. The threading element includes an assembly section adhered in the installation groove, a threading section extended from the assembly section, and a plurality of thread holes disposed at the threading section. The hardness of the threading element is greater than the hardness of the seat to prevent the threading element from wear caused by sewing operations. In the sewing machine needle clamp of the present invention, the seat and the threading element are manufactured and formed separately, so as solve the issue of crookedness of machine needle holes caused by a thermal process in a conventional needle clamp. 1. A sewing machine needle clamp , comprising:a seat, made of a first material, comprising an assembly rod disposed at an upper portion, and an installation groove disposed at one side away from the assembly rod; anda threading element, made of a second material, the second material being different from the first material, the hardness of the second material being greater than the hardness of the first material, the threading element comprising an assembly section adhered in the installation groove, a threading section extended from the assembly section towards a direction away from the seat, and a plurality of thread holes disposed at the threading section.2. The sewing machine needle clamp of claim 1 , wherein the first material is a metal material claim 1 , and the second material is a ceramic material.3. The sewing machine needle clamp of claim 2 , wherein the assembly section is adhered in the installation groove by an adhesive.4. The sewing machine needle clamp of claim 2 , wherein the seat further comprises a plurality of machine needle holes penetrating from an inner portion towards a lower portion.5. The sewing machine needle clamp of claim 4 , ...

PRESSER-FOOT LIFTING AND LOWERING DEVICE FOR SEWING MACHINE

When lifting and lowering the presser-foot by either of the manual operation lever and the knee operation lifter, the composition of the lifting and lowering mechanism can be simplified, the number of parts can be reduced and the production can be performed easily. The present invention is provided with a presser bar lifting and lowering mechanism () which has: a lifter operating plate which is disposed upon a pedestal () which supports an arm () upon a bed () and which is vertically movable depending on a vertical movement operation of a manual operation lever (); a pivot rod in which one end is joined to the lifter operating plate via a first joining link; and a presser-foot bar lifting and lowering plate which is joined to a second joining link which is joined to the other end of the pivot rod, and which is joined to the presser-foot bar via a presser bar holder which is fixed to the presser-foot bar. The present invention is provided with a knee lifter mechanism () which is disposed upon a right lower end () of the bed, which is equipped with a knee operation lifter (), and which has a knee lifter drive arm which rotates by a swing of the knee operation lifter, wherein the knee lifter drive arm is joined to the lifter operating plate. 1. A presser-foot lifting and lowering device for sewing machine which lifts and lowers a presser-foot which is fixed at a slidable presser-foot bar in an arm head by either of a manual operation lever and a knee operation lifter for sandwiching a cloth which is sewed on a throat plate which is composed as one of a stitch forming device which is provided at an arm and a bed of a sewing machine and releasing the pressure , comprising: a lifter operating plate which is disposed at a pedestal which supports said arm on said bed and which is vertically movable depending on a vertical movement operation of said manual operation lever,', 'a pivot rod whose one end is joined to said lifter operating plate through a first joining link, and ...

THREADING GUIDE

A threading guide that includes: a closed loop at a first end; a straight blunt tip at a second end; and an elongated tapering construction between the blunt tip and the closed loop. The guide tapers from a first thickness near the closed loop to a second thickness at the blunt tip, wherein the closed loop is adapted to receive a drawstring. Preferably, the length of the guide is approximately 6 inches. 1. A threading guide comprising:a. closed loop at a first end;b. straight blunt tip at a second end; andc. an elongated tapering construction between the blunt tip and the closed loop.2. The threading guide according to claim 1 , where the guide tapers from a first thickness near the closed loop to a second thickness at the blunt tip.3. The threading guide according to claim 1 , wherein the closed loop is adapted to receive a drawstring.4. The threading guide according to claim 1 , wherein the length of the guide is approximately 6 inches. The present invention relates to a threading guide used to thread drawstrings into openings of garments.Drawstrings are used on various garments as a means to secure the garment around the body of a user. Drawstrings are used in hoods, at the waist areas and in other positions along the garment. The drawstring usually leads through a channel within the garment and is self contained within the garment while in use. Occasionally the drawstrings are accidentally removed or otherwise drawn out of the channel and therefore it is necessary to replace or engage the drawstring back into the channel area.Examples of devices used to restring drawstrings are disclosed in U.S. Pat. No. 4,863,079 to Holmgren. Holmgren discloses a device which relates to restringing and recovery of a drawstring through a garment channel. A second example of such a device is disclosed in U.S. Pat. No. 5,785,215 to Hinkel. Hinkel discloses a drawstring restringing apparatus that attaches the drawstring at first end and leads the string through an opening through ...

MULTI-NEEDLE BAR MODULE FOR SEWING MACHINES

The present invention discloses a multi-needle bar module for sewing machines. Such a multi-needle bar module may be additionally mounted on the existing sewing machines, so that the existing sewing machines may be easily retrofitted into multi-needle bar sewing machines. The multi-needle bar module is not limited to a two-needle bar structure, and may be assembled with three, four or more needle bars according to actual requirements, solving the problem that both the single-needle bar sewing machines and the two-needle-bar sewing machines require manual change of threads in the process of sewing a pattern due to insufficient color varieties of the upper threads. The multi-needle-bar module guides each needle bar via the first horizontal guideway and the second horizontal guideway, and feeds a specific needle bar into the neck of the needle bar driving block via the driving mechanism. Such a multi-needle bar module has the advantages of simple structure and automatic control. 1112344311112551112441111234145aaaa. A multi-needle bar module for sewing machines , comprising a mounting plate () adapted to a front end of a sewing machine head , characterized in that the mounting plate () is equipped in a sliding manner , via a bracket () , with a needle bar mounting frame () on which at least two needle bars () are distributed at intervals , the needle bars () being in axial sliding fit with the needle bar mounting frame (); the mounting plate () is provided with a first horizontal guideway () and a second horizontal guideway () disposed at intervals , and a needle bar driving block () with a neck () is disposed between the first horizontal guideway () and the second horizontal guideway (); the needle bars () are provided with guide members () that can be clamped into the first horizontal guideway () and the second horizontal guideway (); the needle bar mounting frame () clamps , by sliding horizontally , the guide () of any one of the needle bars () individually into the ...

HEAT DISSIPATION APPARATUS FOR SEWING MACHINES

A heat dissipation apparatus for a sewing machine including a forepart and a motor shaft horizontally projecting out of the forepart includes a sleeve releasably secured to the motor shaft and including a first fan mounted thereon; a stator seat including an axial channel with the sleeve rotatably disposed through, and a plurality of first air inlets; and a guide member fastened between the stator seat and the forepart and including a disc-shaped opening with the first fan rotatably disposed therein. In response to activating the first fan, air is drawn through the first air inlets and a gap between the stator seat and the guide member prior to exiting the forepart. 1. A cooling module for used in a sewing machine , the sewing machine comprising a forepart and an extension shaft extended through the forepart for rotation relative to the forepart , said cooling module comprising:a sleeve secured to the extension shaft;a stator seat secured on the forepart, the stator seat having a first guide end facing the forepart, an opposing second guide end comprising an axial passage, and an inner space between the first guide end and the second guide end for accommodating a stator set, the axial passage dimensioned to receive part of the sleeve; anda first fan mounted on the sleeve adjacent to the forepart for rotation together with the extension shaft, wherein the stator seat further comprises a plurality of first air inlets arranged to draw air into the stator seat toward the forepart when the first fan is rotation.2. The cooling module of claim 1 , wherein the stator seat comprises a chamber having a closed side and an open side claim 1 , the closed side arranged to provide the axial passage claim 1 , the stator seat further comprising a flange segment fastened to the forepart claim 1 , the flange segment having a joining portion connected to the open side of the chamber claim 1 , and the first air inlets are provided on the joining portion.3. The cooling module of claim 2 ...

METHOD FOR STITCHING VEHICLE INTERIOR COMPONENTS AND COMPONENTS FORMED FROM THE METHOD

A method of applying stitching to an interior component is provided herein. The method including the steps of: a) penetrating the outer skin layer, the substrate layer and the intermediary layer with an awl to form a piercing therethrough; b) retracting the awl from the outer skin layer, the substrate layer and the intermediary layer; c) inserting a needle of a robotic sewing head through the piercing through the substrate layer, the intermediary layer and the outer skin layer to grasp a thread positioned on the outer skin layer; d) pulling the thread through the outer skin layer, the intermediary layer and the substrate layer; e) looping the thread with a previous stitch passed through the outer skin layer, the intermediary layer and the substrate layer; f) advancing the robotic sewing head to another position with respect to the interior component, wherein a backside of the substrate layer is free of obstructions; and g) repeating steps a-f until a predetermined amount of stitches are applied to the interior component. 1. A method of applying stitching to an interior component , comprising an outer skin layer , a substrate layer and an intermediary layer located between the outer skin layer and the substrate layer , the method comprising:a) penetrating the outer skin layer, the substrate layer and the intermediary layer with an awl to form a piercing therethrough;b) retracting the awl from the outer skin layer, the substrate layer and the intermediary layer;c) inserting a needle of a robotic sewing head through the piercing through the substrate layer, the intermediary layer and the outer skin layer to grasp a thread positioned on the outer skin layer;d) pulling the thread through the outer skin layer, the intermediary layer and the substrate layer;e) looping the thread with a previous stitch passed through the outer skin layer, the intermediary layer and the substrate layer;f) advancing the robotic sewing head to another position with respect to the interior ...

SEWING APPARATUS

A sewing apparatus includes a housing, an arm shaft that extends through the housing in a longitudinal direction, a cam member coupled to the arm shaft, the cam member including a front face and a rear face positioned opposite the front face, where the cam member includes a lobe positioned on one of the front face and the rear face, a needle assembly coupled to the housing, the needle assembly including a needle shaft and a needle coupled to the needle shaft, and an arm pivotally coupled to the housing and engaged with the cam member, where the needle assembly is slidably engaged with the arm in a vertical direction and the needle assembly is constrained with respect to the arm in the longitudinal direction and a lateral direction that is transverse to the longitudinal direction. 1. A sewing apparatus comprising:a housing;an arm shaft that extends through the housing in a longitudinal direction;a cam member coupled to the arm shaft, the cam member comprising a front face and a rear face positioned opposite the front face, wherein the cam member comprises a lobe positioned on one of the front face and the rear face;a needle assembly coupled to the housing, the needle assembly comprising a needle shaft and a needle coupled to the needle shaft; andan arm pivotally coupled to the housing and engaged with the cam member, wherein the needle assembly is slidably engaged with the arm in a vertical direction and the needle assembly is constrained with respect to the arm in the longitudinal direction and a lateral direction that is transverse to the longitudinal direction.2. The sewing apparatus of claim 1 , further comprising a linking member coupled to the arm and engaged with the cam member claim 1 , wherein the arm is engaged with the cam member through the linking member.3. The sewing apparatus of claim 1 , wherein the arm is pivotally coupled to the housing at an arm pivot axis that extends in the longitudinal direction claim 1 , wherein the arm and the needle assembly ...

KNEE-CONTROLLED MOTOR CONTROL DEVICE FOR A MOTOR-DRIVEN PRESSER MECHANISM OF A SEWING MACHINE

A motor control device is used to control an electric motor that drives a presser mechanism of a sewing machine and includes a knee lever mechanism and a control module. The knee lever mechanism includes a switch component, an actuator rotatable to actuate the switch component at a predetermined angular position, and a rotatable knee lever operable by knee contact to rotate and to drive rotation of the actuator. When the control module determines that the switch component is actuated, the control module controls the electric motor to move the presser mechanism to dispose a presser foot of the presser mechanism at a predetermined height relative to a bed of the sewing machine. 1. A motor control device for controlling operation of an electric motor that drives movement of a presser mechanism of a sewing machine , said motor control device comprising: a switch component,', 'an actuator rotatable to actuate said switch component when rotated to a predetermined angular position, and', 'a rotatable knee lever operable by knee contact to rotate and to drive rotation of said actuator; and, 'a knee lever mechanism includinga control module coupled to said switch component and to be coupled to the electric motor;wherein, when said control module determines said switch component to be in an actuated state, said control module is configured to control operation of the electric motor to move the presser mechanism to dispose a presser foot of the presser mechanism at a predetermined height relative to a bed of the sewing machine.2. The motor control device as claimed in claim 1 , wherein said knee lever mechanism further includes a variable resistor component coupled to said control module claim 1 , spaced apart from said switch component claim 1 , having a rotary axle portion claim 1 , and a forced portion that extends from said rotary axle portion and that abuts against said actuator claim 1 , and having a resistance varying with rotation of said rotary axle portion claim 1 , ...

NEEDLE PLATE OF SEWING MACHINE

A needle plate of a sewing machine mounted on an upper surface of a bed of the sewing machine includes a support surface for supporting a fabric pressed by a presser foot, a needle opening through which a needle passes, and a feed dog slot through which a feed dog moves up and down and back and forth. The support surface has small projections and recesses. 1. A needle plate of a sewing machine mounted on an upper surface of a bed of the sewing machine , the needle plate comprising:a support surface for supporting a fabric pressed by a presser foot;a needle opening through which a needle passes; anda feed dog slot through which a feed dog moves up and down and back and forth,wherein the support surface has small projections and recesses.2. The needle plate of a sewing machine according to claim 1 , wherein the small projections and recesses are regularly arranged projections and recesses.3. The needle plate of a sewing machine according to claim 2 , wherein the regularly arranged projections and recesses include evenly arranged discontinuous protrusions.4. The needle plate of a sewing machine according to claim 2 , wherein the regularly arranged projections and recesses include evenly arranged linear protrusions each extending continuously in a fabric feeding direction.5. The needle plate of a sewing machine according to claim 1 , wherein the support surface has a rough surface portion instead of the small projections and recesses only in a region surrounding the needle opening.6. The needle plate of a sewing machine according to claim 5 , wherein the small projections and recesses are regularly arranged projections and recesses.7. The needle plate of a sewing machine according to claim 6 , wherein the regularly arranged projections and recesses include evenly arranged discontinuous protrusions.8. The needle plate of a sewing machine according to claim 6 , wherein the regularly arranged projections and recesses include evenly arranged linear protrusions each ...

ADJUSTABLE CLAMPING SYSTEM FOR A SEWING MACHINE

The present disclosure generally relates to a clamping system. Particularly, the present disclosure relates to a clamping system for holding material to be sewn/embroidered by a sewing machine. 1. A clamping system for holding material to be sewn or embroidered comprising:(i) a plurality of clamping assemblies;(ii) a base mounting plate for each of the assemblies;(iii) a base track for positioning the clamping assemblies base mounting plates onto;(iv) an air cylinder for each of the clamping assemblies;(v) a sewing arm;(vi) a central over arm air cylinder assembly configured with a forked guiding element; and(vii) a triangulated lower clamping arm set, offset dual arms are positioned horizontally either side of the centre line of the clamping assemblies and a third arm is positioned vertically above and also slightly offset above the outer of the horizontally paired dual lower arm set.2. The system according to further comprising an upper operative arm and lower fixed arms.3. The system according to comprising at least 3 to 9 clamping assemblies.4. The system according to wherein the central over arm air cylinder assembly is configured with a floating foot member.5. The system according to further comprising a single or dual rod(s) claim 4 , and a lower base plate as part of an Air cylinder assembly wherein the height of the lower base plate and rod/s is positioned at an alternative height to enable the lower triangulated (dual) rods extending out of a connector claim 4 , to hold the material at the same height as a needle plate.6. A clamping system for holding material to be sewn or embroidered comprising:(i) a plurality of clamping assemblies;(ii) a base mounting plate;(iii) a base track;(iv) an air cylinder for each of the clamping assemblies;(v) a sewing arm; and(vi) an upper air cylinder assembly triangulated with lower air cylinder assemblies.7. The system according to further comprising a floating foot member attached to the upper air cylinder assembly.8. The ...

SEWING MACHINE NEEDLE CLAMPING DEVICE

A sewing machine needle is attached firmly and easily, and is fixed and exchanged. A needle clamp for clamping a sewing machine needle has an accommodating recessed part which accommodates a needle shank of the sewing machine needle, a clamp lever which has a clamp arm which engages to the needle shank, is freely opened and closed and is fixed to a clamp lever shaft which is fitted loosely to an elongate hole which is bored at the needle clamp for the accommodating recessed part and a needle fixing spring which repels elastically the clamp lever to an outer direction of a straight line which links a central point N of the needle shank and a central point of the clamp lever shaft, and the clamp arm has a force acting locking part which slides on the needle shank of the sewing machine needle against elasticity of the needle fixing spring when rocking the clamp lever to a clamping direction “a” and passes a branch point position tp that the elasticity of the needle fixing spring of the straight line which links the central point of the needle shank of the sewing machine needle and the central point of the clamp lever shaft becomes maximum and holds a stable clamping state by the elasticity of the needle fixing spring. 1. A sewing machine needle clamping device for attaching a sewing machine needle to an accommodating recessed part of a needle clamp with the needle clamp comprising the accommodating recessed part accommodating a needle shank of the sewing machine needle , comprising:a clamp lever which can rock freely and has a clamp arm which engages to the needle shank of said sewing machine needle, is freely opened and closed for said accommodating recessed part and is fixed to a clamp lever shaft which is fitted loosely to an elongate hole which is bored at said needle clamp, anda needle fixing spring which repels elastically said clamp lever to an outer direction of a straight line which links a central point of the needle shank of said sewing machine needle and a ...

NEEDLE PLATE DETACHABLE MECHANISM AND SEWING MACHINE HAVING NEEDLE PLATE DETACHABLE MECHANISM

In order to prevent a replacement of the needle plate in the situation not suitable for replacing the needle plate, a needle plate detachable mechanism has a needle plate fixing unit capable of being switched between a fixed state where a needle plate is fixed to a sewing machine body and an unfixed state where the fixed state is released; and a switching mechanism which is connected with the needle plate fixing unit for switching the needle plate fixing unit between the fixed state and the unfixed state, wherein the needle plate fixing unit is prevented from being switched when the needle is positioned below an upper surface of the needle plate or when the sewing machine motor is driven. 1. A needle plate detachable mechanism of a sewing machine which forms a seam by vertically driving a needle by a driving force of a sewing machine motor , the needle plate detachable mechanism comprising:a needle plate fixing unit capable of being switched between a fixed state where a needle plate is fixed to a sewing machine body and an unfixed state where the fixed state is released; anda switching mechanism which is connected with the needle plate fixing unit for switching the needle plate fixing unit between the fixed state and the unfixed state, wherein the needle plate fixing unit is prevented from being switched when the needle is positioned below an upper surface of the needle plate or when the sewing machine motor is driven.2. The needle plate detachable mechanism according to claim 1 , wherein a rotary unit provided on the lower surface of the needle plate; and', 'a needle plate engaging unit provided to be integrally rotatable with the rotary unit, wherein, 'the needle plate fixing unit includeswhen the rotary unit is rotated, the needle plate engaging unit is rotated between an engaged position where the needle plate engaging unit is engaged with the needle plate and a disengaged position where the needle plate engaging unit is disengaged from the needle plate, andthe ...

SEWING MACHINE WITH READILY ADJUSTABLE STEPPING HEIGHT

A sewing machine comprises a crank shaft, a first drive shaft, a second drive shaft, a needle assembly, a presser foot, and an upper walking foot. A first crank arm assembly is connected to the crank shaft to the first drive shaft. A first linkage assembly is connected to the first drive shaft to the needle assembly. A second crank arm assembly is connected to the first drive shaft to the second drive shaft. A second linkage assembly is connected to the second drive shaft to the presser foot and the upper walking foot. The second linkage assembly is configured to cause out-of-phase reciprocatory movement of the presser foot and the upper walking foot. The second crank arm assembly has a variable length that is selectably adjustable by an operator to yield at least first and second different stepping heights of the upper walking foot. 1. A sewing machine comprising:a crank shaft, a first drive shaft, a second drive shaft, a needle assembly, a presser foot, and an upper walking foot,a first crank arm assembly connecting said crank shaft to said first drive shaft,a first linkage assembly connecting said first drive shaft to said needle assembly,a second crank arm assembly connecting said first drive shaft to said second drive shaft, anda second linkage assembly connecting said second drive shaft to said presser foot and said upper walking foot,said second linkage assembly configured to cause out-of-phase reciprocatory movement of said presser foot and said upper walking foot,said second crank arm assembly having a variable length selectably adjustable by an operator to yield at least first and second different stepping heights of said upper walking foot.2. The sewing machine of wherein said variable length second crank arm also yields at least first and second different uppermost travel limits of said presser foot.3. The sewing machine of wherein said first crank arm assembly includes a first crank arm and a first crank lever claim 1 , said first crank arm pivoted at a ...

Device for adjusting the checking unit of a presser foot used in a sewing and/or embroidery machine

Verfahren zur Fertigung von komplexen 3D-Preformen

Die Erfindung betrifft ein Verfahren zur Fertigung von komplexen 3D-Preformen unter Verwendung eines bestickbaren textilen Flächengebildes als Erstlage, wobei das textile Flächengebilde in Form eines maschenbildenden oder nichtmaschenbildenden textilen Halbzeuges vorliegt. Mittels eines Blindstichtyps werden Stränge aus Verstärkungsfasern (Rovings) mit gebogener Nadel auf das textile Flächengebilde aufgestickt, wobei das textile Flächengebilde nicht vollständig durchstoßen wird.

Actuating device

본 발명은 재봉장치 내지 재봉틀용으로 제공된 동작장치에 관한 것이다. 상기 동작장치는 편조직 형성 및 재봉 재료 이송동안 재봉 재료를 하부방향으로 누르기 위한 하나의 재료 가압장치를 포함하고 있으며, 또한 상기 재료 가압장치용의 조절 부재로서 적어도 하나의 직선형 전동기를 포함하고 있다. 상기 직선형 전동기의 구동 로드는 재봉 재료 상에 상기 재료 가압장치가 미치는 재료 가압력을 제어하기 위해 재료 가압장치와 연결되어 있으며, 동시에 구동 로드는 적어도 하나의 탄성 저질량 커플링 부재를 통해 재료 가압장치와 연결되어 있으며, 그리고 동시에 재료 가압장치는 직선형 전동기에 의해 상부 위치와 하부 위치 사이에서 이동 가능하다.

PRESSER FOOT CONTROL FOR SEWING MACHINES

Improved assembler-sewing machine and new shoemaking process in the implementation of which this machine plays an important role

Stocking embroidery device

Shoe soles sewing machine

Sewing machine

Half-stitch sewing machine

Sewing Machine Improvements

PORTABLE SEWING MACHINE WITH AUTOMATIC LUBRICATION, EQUIPPED WITH PERFECTIONAL LUBRICATION CIRCUIT OF TRAINING SHAFT AND ADVANCE CLAMP ASSEMBLY

LE CIRCUIT DE LUBRIFICATION AUTOMATIQUE DE L'ARBRE D'ENTRAINEMENT102 ET DE L'ENSEMBLE166 A GRIFFE D'AVANCE DE LA MACHINE COMPREND UN CANAL D'HUILE AXIAL154 INTERNE A L'ARBRE102, UN PERCAGE D'HUILE RADIAL152 ET SUPERIEUR QUI S'ETEND DU CANAL154 JUSQU'A LA PERIPHERIE EXTERNE DE L'ARBRE 102, ET FAIT FACE AU COUSSSINET INFERIEUR 106 DE L'ARBRE D'ENTRAINEMENT PRINCIPAL 102, ET UN PASSAGE D'HUILE 172 RADIAL ET INFERIEUR QUI S'ETEND DU CANAL 154 A LA PERIPHERIE EXTERNE D'UNE CAME EXCENTRIQUE162 DE LA GRIFFE D'AVANCE, LA CAME ETANT SOLIDAIRE DE L'EXTREMITE INFERIEURE DE L'ARBRE D'ENTRAINEMENT102. L'HUILE PARVIENT AU COUSSINET INFERIEUR106 DE L'ARBRE102 AFIN D'ETRE DISTRIBUEE VERS LE BAS LE LONG DU PERCAGE152, DU CANAL154 ET DU PASSAGE172 JUSQU'A LA PERIPHERIE EXTERNE DE LA CAME162 QUI EST MONTEE ROTATIVE DANS LE BLOC166 A GRIFFE D'AVANCE. APPLICATION A LA LUBRIFICATION PAR GRAVITE DE L'ARBRE D'ENTRAINEMENT ET DE L'ENSEMBLE A GRIFFE D'AVANCE D'UNE MACHINE A COUDRE PORTATIVE. AUTOMATIC LUBRICATION CIRCUIT FOR DRIVE SHAFT 102 AND MACHINE ADVANCE CLAW ASSEMBLY 166 INCLUDES AXIAL154 OIL CHANNEL INTERNAL TO SHAFT 102, RADIAL152 AND UPPER OIL DRILLING THAT EXTENDS FROM CHANNEL 154 TO THE EXTERNAL PERIPHERY OF SHAFT 102, FACING LOWER COUSSSINET 106 OF MAIN DRIVE SHAFT 102, AND A RADIAL AND LOWER 172 OIL PASSAGE THAT EXTENDS FROM CHANNEL 154 TO THE EXTERNAL PERIPHERY OF AN ECCENTRIC CAM162 OF THE ADVANCE CLAW, THE CAM BEING SOLIDARITY WITH THE LOWER END OF THE DRIVE SHAFT 102. THE OIL GETS TO THE LOWER BEARING 106 OF THE SHAFT 102 IN ORDER TO BE DISTRIBUTED DOWN ALONG THE DRILL 152, CHANNEL 154 AND PASSAGE 172 TO THE EXTERNAL PERIPHERY OF THE CAME 162 WHICH IS ROTATED IN THE BLOCK OF AVANCE 166 AT GRI . APPLICATION TO THE GRAVITY LUBRICATION OF THE DRIVE SHAFT AND THE ADVANCE CLAW ASSEMBLY OF A PORTABLE SEWING MACHINE.

Shoe Sewing Machine Improvements

Thread guide for sewing machines

Sewing machine and lubricator

Improvements to sewing machines for boots, shoes and other shoes

Shoe Sewing Machine Improvements

Shoe Sewing Machine Improvements

PROTECTIVE DEVICE FOR NEEDLES OF SEWING MACHINES

DISPOSITIF DE PROTECTION DES AIGUILLES POUR MACHINES A COUDRE. CE DISPOSITIF EST RELIE A L'ARBRE HORIZONTAL 16 DE LA MACHINE A COUDRE DE MANIERE A ENTRAINER SON CUEILLEUR 14 SUIVANT UNE TRAJECTOIRE ORBITALE AUTOUR DES AIGUILLES 9 DE LA MACHINE; L'ARBRE HORIZONTAL 16 EST ENTRAINE DE MANIERE A EXECUTER SIMULTANEMENT DES MOUVEMENTS OSCILLATOIRES ET ALTERNATIFS. LE PROTECTEUR D'AIGUILLES 21 EST PORTE PAR UN SUPPORT PIVOTANT 15 ET LE MOUVEMENT ALTERNATIF DE L'ARBRE HORIZONTAL EST A MEME DE DEPLACER LE PROTECTEUR D'AIGUILLES 21 AFIN DE LA RAPPROCHER ET DE L'ELOIGNER DES AIGUILLES 9 EN SYNCHRONISME AVEC LE CYCLE DE FORMATION DES POINTS. APPLICATION AUX MACHINES A COUDRE, NOTAMMENT DU TYPE A DOUBLE CHAINETTE DE POINTS. NEEDLE PROTECTION DEVICE FOR SEWING MACHINES. THIS DEVICE IS CONNECTED TO THE HORIZONTAL SHAFT 16 OF THE SEWING MACHINE SO AS TO DRIVE ITS PICKER 14 FOLLOWING AN ORBITAL TRAJECTORY AROUND THE NEEDLES 9 OF THE MACHINE; THE HORIZONTAL SHAFT 16 IS DRIVEN SO AS TO EXECUTE OSCILLATORY AND ALTERNATIVE MOVEMENTS SIMULTANEOUSLY. THE NEEDLE PROTECTOR 21 IS CARRIED BY A SWIVEL BRACKET 15 AND THE ALTERNATIVE MOVEMENT OF THE HORIZONTAL SHAFT IS TO MOVE THE NEEDLE PROTECTOR 21 IN ORDER TO APPROACH AND REMOVE THE NEEDLES 9 IN SYNCHRONISM WITH THE CYCLE TRAINING POINTS. APPLICATION TO SEWING MACHINES, ESPECIALLY OF THE DOUBLE CHAIN OF STITCH TYPE.

Shoe Sewing Machine Improvements

Sewing machine

Shoe Sewing Machine Improvements

Stitching head and machine for producing a plate-shaped reinforcement for a piece of composite material.

Welt sewing machine

METHOD AND DEVICE FOR AUTOMATICALLY SEWING ON A GARMENT A PIECE OF FABRIC HAVING CURVED EDGES

Lost stitches sewing machine

Sewing machine

Shoe sewing machine

Improvements in sewing machines

Shoe Sewing Machine Improvements

Patent FR741256A

Lubricating arrangement for sewing machines

746,008. Sewing-machines. SINGER MANUFACTURING CO. May 20, 1954 [June 1, 1953], No. 14800/54. Class 112. [Also in Groups XXVI and XXXIV] Lubricating.-The bed-shaft 12 is mounted in bearings 13 . . . 16 and provided at one end with an axial bore 42, and lubricant is delivered to this end and fed along the bore as the shaft 12 rotates, by means of a helical spring 49, and thence through radial holes 43, 44, 45 to bearings 46, 47, 48. The shaft 12 is formed with a crank 19 for actuating a connecting rod 20 which is provided with a lubricant splasher 21 dipping into lubricant in a sump 22. As the shaft 12 rotates, the splasher distributes lubricant within the standard 11. Some lubricant collects in a trough 23 and flows into a fitting 24 which supplies a main tube 25 for distribution to tubes 29, 30, 31 leading to bearings. The tube 30 at one end is provided with a wick which extends into a fitting secured to the bearing 16 and supplies lubricant through an opening in a bushing 33 surrounding the end of the shaft 12. One end of the bushing is closed by a cap 40, and a chamber 41 is formed between the end of the cap and the end of the shaft 12, the chamber being partly filled by a wick 50 which is coiled around the spring 49. The spring is fixed at one end to the cap 40. As the shaft rotates the spring 49 acts as a screw pump to force the lubricant along the bore 42. A helical groove 56 is formed on the outer surface of the shaft 12 to prevent escape of lubricant along the inner surface of the bushing 33.

Device for releasing the thread tension for sewing machines

Improvements to sewing and embroidery machines

Improvements made to the sole sewing machines through and through

PRESSER FOOT CONTROL FOR SEWING MACHINES

L'INVENTION CONCERNE UNE COMMANDE DE PIED-DE-BICHE POUR MACHINES A COUDRE. LE DISPOSITIF DE L'INVENTION COMPREND UN RESSORT HELICOIDAL10 SOLIDARISE ACTIVEMENT A UN BRAS PIVOTANT 4 QUI SUPPORTE LE PIED-DE-BICHES DE LA MACHINE. CE RESSORT10 EST LOGE DANS UN MANCHON8 COMPORTANT UNE EXTREMITE BIFURQUEE9 QUI VIENT SE PLACER A CHEVAL SUR LE BRAS4. UNE BIELLE DE POUSSEE13 RESSORTANT DU MANCHON8 VIENT S'ENGAGER SUR LE RESSORT HELICOIDAL10 PAR UNE DE SES EXTREMITES, TANDIS QUE, PAR SON EXTREMITE OPPOSEE, ELLE VIENT S'ENGAGER SUR LA PARTIE DU BRAS PIVOTANT4 QUI S'ETEND A TRAVERS L'EXTREMITE BIFURQUEE 9 DU MANCHON8. L'INVENTION EST UTILISEE, DANS LES MACHINES A COUDRE, POUR ASSURER UN MOUVEMENT RECTILIGNE CONTROLE D'UNE PIECE DE TRAVAIL LE LONG DE L'AXE DE COUTURE.

Shoe sewing machine

PORTABLE SEWING MACHINE FOR PUMP BAGS AND AUTOMATIC LUBRICATION

L'INVENTION CONCERNE UNE MACHINE PORTATIVE A COUDRE LES SACS. ELLE SE RAPPORTE A UNE MACHINE PORTATIVE AYANT UN SYSTEME DE LUBRIFICATION QUI COMPORTE UN RESERVOIR 40 ET UNE POMPE 121. L'HUILE EST CHASSEE DANS LES COUSSINETS 106 DANS LESQUELS TOURNE L'ARBRE PRINCIPAL 102 D'ENTRAINEMENT. L'HUILE EST A LA FOIS TRANSMISE PAR DES TUBES, CHASSEE PAR PROJECTION LORS DU DEPLACEMENT DES DIFFERENTS ELEMENTS, PROJETEE PAR UNE BUSE 630 SUR L'ENSEMBLE 146 DE DEPLACEMENT D'AIGUILLE, ET TRANSMISE PAR DES MECHES 180 AUX DIFFERENTS ELEMENTS. DE CETTE MANIERE, TOUS LES ELEMENTS MOBILES SONT BIEN LUBRIFIES. APPLICATION A LA COUTURE DES SACS DE CONDITIONNEMENT DES MATERIAUX EN VRAC. THE INVENTION CONCERNS A PORTABLE MACHINE FOR SEWING BAGS. IT RELATES TO A PORTABLE MACHINE HAVING A LUBRICATION SYSTEM WHICH INCLUDES A TANK 40 AND A PUMP 121. THE OIL IS DRIED INTO THE BUSHINGS 106 IN WHICH TURN THE MAIN DRIVE SHAFT 102. THE OIL IS BOTH TRANSMITTED BY TUBES, DISCHARGED BY SPRAYING WHILE THE VARIOUS ELEMENTS ARE MOVING, PROJECTED BY A NOZZLE 630 ON THE NEEDLE MOVEMENT SET 146, AND TRANSMITTED BY WICK 180 TO THE DIFFERENT ELEMENTS. IN THIS WAY ALL MOVABLE ELEMENTS ARE WELL LUBRICATED. APPLICATION TO THE SEWING OF PACKAGING BAGS OF BULK MATERIALS.

Improvements in shoe sewing machines

Thread guide device usable on sewing machines

Hidden Stitch Sewing Machine

Sewing machine for soles and thick leather

Shoe welt sewing machine

Sewing machine needle holder

Machine for sewing shoes

Hidden Stitch Sewing Machine

Full rotation pot

Lubrication of sewing machines

Improvements to the welting machines used in shoemaking

Machine-made cross and loop stitch

Improvements to the welt sewing machines of boots and shoes

Sewing machine material feed mechanism cover plate

Facsimile equipment

(57)【要約】 【課題】 押え金を別のものと交換する場合には、蓋板 を締め付けている止めねじを全て取り外し、押え金を交 換した後、改めて止めねじを締め付けるという手間のか かる煩わしい作業を伴う。このため、縫製工場における 作業工程の変更に伴う押え金の交換作業が、稼働率の低 下を惹起する。 【解決手段】 押えアーム１２，３０２を、押えアーム 支持軸１３，３０１によつて案内させながら先端と基端 とを結ぶほぼ水平方向への移動を可能とする移動装置３ ３，１３３を備えさせ、移動装置３３，１３３により、 押えアーム１２，３０２を基端に向けて移動させること により、押えアーム１２，３０２の先端部１２ｂ，３０ ２ｂの押え金５の受け穴５ａへの係合が離脱する。

Sewing machine comprising a presser device.

Closure cover for the looper housing of a sewing machine.

A displaceable cover for the housing of a sewing machine loop catch mechanism comprises a plate fixed to a pin which in turn is rotatably and slidably mounted in relatively fixed bearings. A spring element exerts upon the pin both a torsion torque and downward axial thrust. Opening of the cover is accomplished by depressing one end of a pivoted lever to cause the other end thereof to raise the cover from engagement within the housing and allowing the spring elements to swing the cover into an open position.

Joining of a multiple-layer fabric by invisible stitching

entitled: JOINING OF A MULTIPLE-LAYER FABRIC BY INVISIBLE STITCHING in the names of: Robert Ernest VINNER Max PARISOT Jacques PARISOT ABSTRACT OF THE DISCLOSURE The invention relates to the joining of a multiple-layer fabric by invisible stitching, whereby two folds are made in two strips of fabric, which folds are brought close to each other so that the ridges thereof are adjacent and parallel, a series of stitches is made between the two ridges of the two folds, in the thickness of the fabric, and these operations are repeated after having displaced the two strips of fabric and thus the ridges of the two folds. The invention is more particularly applied to woollen fabrics.

Improvements in sewing machines

Improvements in shoe sewing machines

Needle holder for two-needle sewing machines

Sewing machine with an adjusting structure capable of controlling a swing center of a swing arm

A sewing machine with an adjusting structure capable of controlling a swing center of a swing arm includes an adjusting apparatus and corresponding structures cooperating with the adjusting apparatus. The adjusting apparatus is provided on the pivotal portion with a sliding groove and a sliding block that can horizontally slide with respect to each other. Between the sliding groove and the sliding block are further provided an adjusting bolt and an elastic element. By rotating the adjusting bolt, the relative position between the swinging center around which the whole swing arm pivots and the whole structure of the swing arm can be changed in the horizontal direction accurately and conveniently, thus assuredly adjusting the start point of the travel of the presser foot, achieving the objective of accursedly adjusting position of the travel sensing apparatus.

Pattern sewing machine processing method for leather product with hook and fur surface

本发明公开了一种带毛勾面皮具的花样机加工方法，包括以下步骤：S1、毛勾面料的加工：将多个毛面料依次阵列式排布于勾面料上，将所述毛面料与所述勾面料车缝制成毛勾面料，其中，所述毛面料与所述勾面料部分重叠；S2、带毛勾面皮具加工：将所述步骤S1制成的毛勾面料转移到皮料上方，通过花样机将所述皮料与所述毛勾面料车缝制成带毛勾面皮具。与现有技术相比，该加工方法具有加工效率高、加工质量好且生产成本低廉等优点。

Needle holder for sewing machines

Thread guide for sewing machines

835,715. Sewing - machines. SINGER MANUFACTURING CO. March 25, 1957 [April 9, 1956], No. 9631/57. Class 112 A combined needle clamp and thread guide has a substantially planar face over which the thread runs, an opening adjacent to the lower edge forming a thread path substantially normal to the face the thread passing in a tortuous path from the planar face, through the opening and to the eye of the needle. The needle clamp 5 includes a clamping screw 15 and a band 12 encircling a reduced portion at the lower end 13 of the needle bar to clamp the shank of the needle 4 in a slot 16 in the needle bar. The thread guide 6 of sheet material, is preferably spot welded to the clamp and has a lower edge 21 from which a finger 19 extends downwards and laterally, a slot, which comprises the opening for the thread, being defined between the edge 21 and the upper edge 23 of the finger. Either the edge 23, as shown, or the edge 21, is provided with a thread retaining rise 25. To facilitate the threading of the slot the free end of the finger 19 is set out of vertical registery with a second finger 27 which extends laterally from the thread guide and extends towards the rear of the clamp.

Table mechanism for hidden stitch sewing machine

SEWING MACHINE WITH A COOLING AIR BLOWER

Improvements in or relating to sewing machines

780,482. Sewing machines. VITTORIO NECCHI SOC. PER AZIONI. Sept. 23, 1953 [Oct. 8, 1952], No. 26201/53. Class 112 In a sewing machine a throat plate provided with a plurality of needle throats, some of which are associated with feed dog slots, is turnable in a recess in a base member provided with fixing members for retaining said plate in a selected position. In Fig. 3 a plate 3 is rotatable about a pin 11 mounted in the base 4, the plate and pin being movable upwardly against a spring 12, and any one of a series of holes near the periphery of the plate being engageable with a pin 14 projecting from the plate. In a modification, Fig. 4, a plate 1 is formed with three holes 9 engageable selectively by a pin projecting upwardly from a permanent magnet mounted in the base, a notch 8 in the periphery of the plate being engageable simultaneously by a projection 6 on a sliding inspection plate 7. In a further modification, Fig. 5, two diametrically opposed peripheral notches 8 in a plate 2 are engageable selectively and respectively by the projection 6 and the head 10 of a screw which projects from the base.

Footwear sewing machine improvements

Shoe sewing machine

Sewing machine with a drive assembly for the driving elements for threading the upper thread through the eye of the needle

IMPROVEMENTS IN SELF-LUBRICATION SYSTEMS IN SEWING MACHINES TO CLOSE BAGS AND-OR SACKS

Seam forming method using sewing machine

A method of forming a strong seam by using a sewing machine, without backstitching. In the sewing machine, a first shuttle hook which rotates in the counterclockwise direction, a first needle, a second needle, and a second shuttle hook which rotates in the counterclockwise direction are arranged in turn in the feed direction. A material to be sewn is fed every time when the needles simultaneously and independently form stitches, so as to form two independent seams which overlap each other in a manner such that the knots of the seams overlap each other on each knotted point, where one of the seams consists of perfect stitches, and the other seam consists of hitch stitches.

Sewing machine, has drive device with lubricant storage tank having lubricant condition detector with capacitive sensor that includes capacity that is variable within range of possible filling level of lubricant based on filling level

The machine has a drive device generating movement of a set of sewing elements to produce a seam at a work piece. The drive device is provided with a lubricant supply (7), with a lubricant storage tank having a lubricant condition detector. The lubricant condition detector is provided with a capacitive sensor, with capacity variable within a range of a possible filling level of a lubricant (9) based on the filling level. The capacitive sensor is formed as a plate-type condenser. An independent claim is also included for a method for determining information of a filling level of lubricant in a lubricant storage tank of a sewing machine.

Improvements in or relating to sewing machines

239,279. British United Shoe Machinery Co., Ltd., (United Shoe Machinery Corporation). June 4, 1924. Boot-sole sewing-machines; welting and turnshoes; feed by awl. - In shoe-sewing machines such for example as are described in Specifications 17328/08, 20711/09 and 20712/09 the work is given a number of feed movements in each stitchforming cycle in order to distribute the stitches more uniformly at parts where the contour of the work changes rapidly. In the arrangement shown a two-step feed is given by the co-operation of an awl 8 and a channel-guide 10. The awl and guide and other stitching devices are similar to those described in the Specifications above referred to. Work -penetrating movements are given to the awl by a cam-operated lever 28 and feed movements by a roll 32 engaging a cam-groove in the disc 30. Work-engaging and feed movements are communicated to the channel-guide by respective levers 42, 46 engaging grooves in the cam-disc. The formation of the cam-grooves and their timing with respect to the other sewing devices is such as to produce a two-step feed, indicated by the successive positions of the awl and guide shown in Figs. 3 to 8, while the needle is passing through the stages of one cycle.

Sewing machine needle lubricator

Sewing machines

Improvements to furs' sewing machines which help to prevent wear of the machine's accessories and to increase its speed of operation. These improvements include a device for the continuous and automatic lubrication of the machine, an improvement of the crankshaft's standing and its positioning on roller-bearings which result in the machine's being able to withstand high rotary speeds, and a device for the adjustment of the machine's rotary speed which also protects the machine's cover against leakage of oil and also brings the machine closer to the operator. <IMAGE>

Meters co

Shuttle embroidery or stitching machine and needle for such machines

飞梭刺绣－或合缝机用针11工作，于这些针来说孔眼23的轴线22布置成与梭子17在梭道25上的向前运动方向19成一个锐角α。轴线22因而差不多如同面子线13在相同的方向上，如果梭子17滑动穿过线圈15并使之扩展的话。面子线得到有保护的处置，因此在机器快速运转时减少了断线。针11在柄部27有一个平面29，通过这平面在固定针的时候强制地使孔眼23带到与梭道25正确的角度位置上。