TW201937031A - Bobbinless sewing system - Google Patents

Abstract

A thread feeding system for any machine that requires a locking stitch. The lower thread of the lock stitch is delivered from the inside of a rotary hook system or oscillating system of a lock stitch sewing machine. The rotary hook or oscillating hook is held in place by a bearing. The rotary hook or oscillating hook is allowed to be driven by teeth on the inner bearing, and they may be located inside or outside, fore or aft to the positioning of the outer bearing. This allows for the void now left inside the rotary hook or oscillating hook where a pipe or tube is placed to feed the lower locking stitch thread. A thread tension case is configured for being joined to a bobbinless lower thread feeding system of a sewing machine and creating drag and resistance for a lower thread during formation of the lower locking stitch.

Description

Wireless shaft sewing system

The invention relates to a sewing machine structure, in particular to a wireless shaft sewing machine.

A two-line chain sewing machine for sewing or embroidery, the maximum amount of thread that can be stored on the spool is extremely limited by its geometry. The amount of wire that the shuttle can hold only covers the amount of wire available for a small portion of the upper needle. Therefore, the shuttle must continue to fill the line. The present invention can solve this problem.

A wireless shaft system suitable for a sewing machine, comprising: an inner bearing; a hook configured to rotate or oscillate to form a part of the inner bearing; an outer bearing mounted on the base of the sewing machine and attached to the inner bearing; a rolling element The inner bearing is connected to the outer bearing; an inner gap is guided to the hook through the inner bearing; and a driving mechanism is connected to the inner bearing.

In one embodiment, the stationary feeder tube mounted in the inner void is configured as a conduit for guiding the wire to the hook and is configured to remain stationary when the hook is rotated or swung.

In another embodiment, the drive mechanism is driven by gear teeth located in the inner, outer or front region of the inner bearing.

In another embodiment, the outlet end of the feeder tube is in an open configuration to allow the wire to extend into the clamping jaw.

In another embodiment, the inner bearing has a shaped portion that provides an recess for receiving the control wire retainer.

In another embodiment, the invention includes a clamp jaw holder having an annular extension rib having an interruption zone to allow the clamp jaw holder to be inserted into the inner bearing.

In one embodiment, the invention includes an inner groove that conforms to the shape of the annularly extending rib, wherein the inner groove extends throughout the peripheral wall of the inner bearing. The inner groove is formed in the inner bearing wall and is closed to the outer side by a wedge retainer. The wedge retainer has an inwardly extending flange for forming an outer wall of the inner groove.

In another embodiment, the circumferential surface of the annularly extending rib can be coupled to an inwardly facing surface formed in the inner groove of the inner bearing.

In another embodiment, the invention includes a bracket having a first horizontal pin at a center thereof for receiving a gripper, the first horizontal pin having a snap point.

In another embodiment, the bracket has a cutout that can receive the feeder tube.

In another embodiment, the feeder tube does not extend beyond the buckle point of the first horizontal pin.

In one embodiment, the feeder tube has a flattened cutout on the outside of its rear side such that the feeder tube can be clamped in place.

In another embodiment, the feeder tube has a cutout at one end to create a conduit for the lead and allows the wire to smoothly slide into the clamp at a desired angle.

In another embodiment, the inner bearing has an inwardly extending flange on the inner wall of the inner groove, the inwardly extending flange extending from the point where the hook tip abuts the point to the abutment point of the front end of the insert. The closed outer side of the inner groove extends from the end point of the insert and the point of the wedge retainer.

In another embodiment of the wireless shaft system, the present invention has a retainer having a rear end positioned adjacent the hook tip and having an outwardly projecting portion including a set of points. A gap is formed between the nozzle and the hook tip, and the gap provides a passage to the lower needle. The front end of the retainer extends to a position adjacent to the hook tip.

By changing the operation of the main hook body from the shaft rotation or the shaft oscillation to the operation through the bearing. The outer bearing is fixed to the base of the seaming machine. The inner bearing is integrated into a part of the main hook body. With this arrangement, it is now allowed to form a void inside the main hook body. In this gap, the lower wire can be passed through the gap by a tubular means to directly feed the wire to the nip, forming a lower lock pin.

In the present invention, a wireless axis system is provided as a feed line system for a sewing machine. The wireless shaft system includes an outer bearing main hook body disposed within the seat attached to the base of the sewing machine. The seat allows the outer bearing main hook to swing or rotate within the seat along a fixed path. The outer bearing hooks can be driven by gear teeth located in the front or rear region of the main hub member. An inner bearing finger shaft is provided in the gap of the outer bearing main hook body, which has a hollow core with an exit point at one end, which allows the lower thread to freely pass through the core of the finger shaft, thereby eliminating the need for the bobbin.

Accordingly, certain embodiments of the present invention are directed to a feeder system suitable for use in a sewing machine, including a retainer ring, an outer bearing hook body, a hollow bearing inner bearing finger shaft, and a rolling element. The retainer is used to interface with the base of the sewing machine. The outer bearing hook body includes a hook that is coupled to the retainer ring such that the outer bearing hook body can rotate or oscillate along the fixed path within the retainer ring, thereby causing the hook to rotate or oscillate. The hollow bearing inner bearing finger shaft has an outlet hole on one side thereof so that the inner bearing finger shaft is disposed to pass the wire and guide the wire to the hook through the outlet hole. The rolling elements connect the inner bearing finger shaft to the outer bearing hook body and are configured to allow the outer bearing hook body to rotate coaxially relative to the inner bearing finger shaft.

In an embodiment, the inner bearing finger shaft is configured to remain stationary when the hook is rotated or swung.

In another embodiment, the outer bearing hook body includes gear teeth that are configured to mate with a drive mechanism gear of the sewing machine such that the drive mechanism can cause the outer bearing hook to rotate or oscillate.

The gear teeth may be located on the inner and outer sides of the outer bearing hook body, as well as the front or rear region of the outer bearing hook body.

In another embodiment, the outer bearing hook body has a forming portion that provides an recess for receiving the control wire retainer.

In another embodiment, as detailed above, the feeder system includes a control loop retainer having a radially extending rib having an interruption zone to allow the control loop retainer to be inserted into the outer bearing In the hook body.

The feeder system can optionally include an internal groove that conforms to the shape of the radially extending rib, wherein the internal groove extends over the peripheral wall of the outer bearing hook. The inner groove is formed in the outer bearing hook wall and is closed to the outer side by a wedge retainer. The wedge retainer has an inwardly extending flange for forming an outer wall of the inner groove.

The bead surface of the radially extending rib can be coupled to the inwardly facing surface of the inner groove formed in the outer bearing hook.

In another embodiment, the inner bearing finger shaft has a concave cutting portion on the outer side of the rear thereof, and the concave portion is engaged with the fixing unit that is in contact with the sewing machine base to fix the inner bearing finger shaft to the sewing machine. position.

In one embodiment, the feeder system further includes a curved retainer that conforms to and is coupled to the outer surface of the outer bearing hook body, the retainer having a first end that abuts the hook tip And a second end, the second end having an extension that forms a line point along the curvature of the retainer. A gap is formed between the first end of the retainer and the hook tip, which provides access to the lower needle of the sewing machine.

In another embodiment, the front end of the inner bearing finger shaft is sealed, and includes a locking groove that cooperates with the clamping jaw so that the clamping jaw is fixed to a predetermined position of the sewing machine.

Still alternatively, the locking groove is a recess in a peripheral edge around the front end of the finger shaft.

In an embodiment, the control wire retainer includes a protrusion extending radially outwardly, the protrusion cooperates with a finger of the sewing machine, and when the outer bearing hook body rotates or swings, the wire clamp holder is avoided. Then turn or vibrate.

Features of certain embodiments of the present invention relate to a sewing machine comprising a feeder system as detailed above.

A clamping clamp for a wireless axis system is provided for feeding a thread into any sewing machine or embroidery machine that requires a lock pin. The wire conveyed by the feeder system is inserted into the inside of the wire clamp of the present invention, guided by a spring clip (under tension control), and penetrated into the bevel groove on the side of the wire clamp, and then maintained by a wire spring. In the right place. After the wire leaves the wire clamp, the lower lock pin of the lock needle sewing machine can be formed. The role of the pinch is to create the correct pull force and resistance against the lower line during the formation of the lower lock pin.

Therefore, a technical feature of some embodiments of the present invention is a wireless shaft downline feeder system incorporating a thread clamp, and establishes tension and resistance against the lower thread during formation of the lower lock pin. The clamping jaw includes a cylindrical wall, a cover, a wire spring, a spring, a pin and a finger latch. The cylindrical wall surrounds a hollow space and has a first end and a second end, the second end being covered by the cover. The cylindrical wall has a gap into which the needle of the sewing machine enters the hollow space. The cylindrical wall has a beveled groove that passes through the lower line, the inclined groove extending at an angle and extending along the cylindrical wall, and suddenly turning before ending at the end point. The cover covers the second end and has a central aperture at the center of the cover. The cover body includes an inner shaft, a first protrusion, a second protrusion, a first duct and a second duct. The inner shaft extends around at least a portion of the circumference of the central bore into the hollow space within the cylindrical wall. The first projection is located at the bottom of the outer surface of the cover facing away from the hollow space. The second projection is located at the top of the outer surface of the cover. The first duct is dug in the first protrusion and extends laterally along the outer surface of the cover and faces the second protrusion. The second duct is dug in the second protrusion and extends laterally along the outer surface of the cover and faces the first protrusion. The wire spring includes a curved extension having a first edge that interfaces with the cylindrical wall and a second edge that is not in contact with the cylindrical wall relative to the first edge. The curved extension has a curvature 俾 that matches the first curvature of the cylindrical wall. The wire spring covers a portion of the beveled groove and the end point. The spring is disposed in one of the first conduit or the second conduit. The pin piece includes a smooth seat and a locking hole. The smoothing seat extends along the first plane for insertion into the first and second conduits and slides along the outer surface of the cover within the first and second conduits. The smoothing seat includes a top portion and a spring latching extension extending upwardly or downwardly along the first plane, the spring latching extension being in contact with one end of the spring in the first or second conduit. The locking hole is located at or adjacent to a central position of the smooth seat. The finger latch has a detachable end that is connected to the pin piece, and is attached to the outer surface of the smooth seat and cooperates with the pin piece. When the finger latch is lifted from the pin piece, the finger latch is triggered. Rotation with respect to the pin plate causes the pin piece to slide laterally, so that the central hole of the cover body is aligned with the locking hole of the smooth seat, so that a pin of the lower wire feeder system can be inserted into the wire clamp.

In an embodiment, the cover includes a first latch insertion hole located laterally of the central hole, the first latch insertion hole having an outer edge facing the side of the cover body and an inner surface facing the center of the cover body The edge, the inner edge of the first latch insertion hole is wider than the rest of the first latch insertion hole. The smoothing seat includes a second latch insertion hole whose outer shape matches the outer shape of the first insertion hole. The finger latch includes a planar flap and a curved extension. The planar fin extends along a second plane. The curved extension extends from one side of the planar flap to the other and is curved toward the other direction of the second plane, the curved extension having a head located at the edge of the curved extension, the head having a The width from top to bottom, which is greater than the maximum width of the curved extension from top to bottom. By inserting the head of the finger latch into the wider end of the first and second latch insertion holes and rotating the finger latch to engage the finger latch, the smooth seat and the cover body, the head will be radially Push outward toward the narrower end of the first and second latching holes.

In another embodiment, the wire spring is movably coupled to the cylindrical wall.

In another embodiment, the cylindrical wall includes a first screw opening. The wire spring includes a second screw opening aligned with the first screw opening. The clamping clamp includes an adjusting screw for passing through the first and second screw openings, and can be locked to shorten the distance from the cylindrical wall to a free edge, and can be loosened to increase the secondary cylinder The distance from the wall to the free edge.

In another embodiment, the wire spring includes an inwardly lower pressing rib located at the free edge, and the inwardly pressing rib is used for the touch cylinder when no wire exists between the cylindrical wall and the wire spring. Shaped wall.

A transfer slot can be selectively cut into the cylindrical wall to accommodate the downwardly pressing ribs.

In another embodiment, the inner shaft has a perforation on its side.

In one embodiment, a window is cut over the first or second projection for access to the lower line.

In another embodiment, the clamping jaw includes a curved spring clip in the hollow space having a first spring clip end that is in contact with the outer surface of the inner shaft and a surface that is in contact with the inner surface of the cylindrical wall The second spring clip end. The spring clip is bent to guide the lower wire from the exit point of the feeder system to the bevel groove.

The spring clip is selectively detachable or mountable to the inner shaft and the cylindrical wall.

In another embodiment, the pin tab includes a neck that extends from the outer side of the smooth seat and that curves in the other direction of the first plane of the smooth seat. The cover body includes a neck insertion hole on an outer side surface of the cover body, the neck insertion hole extending along a portion of the cylindrical wall to an edge of the cover body. When the finger latch, the pin tab, and the cover are joined together and the finger latch is placed on top of the slider of the pin tab, the neck will extend beyond the circumference of the cylindrical wall. In addition, when the finger latch, the pin buckle and the cover are joined together, the finger latch will be unscrewed from the smooth seat of the pin buckle, and the neck will be pulled into the inside of the neck insertion hole.

In another embodiment, the first protrusion forms a convex surface together with the finger latch and the second protrusion. When the lock needle slides through the surface and grasps the lower line to form the lock needle, the convex surface is arranged to assist the casting and the lock needle on the line. Smooth access.

In another embodiment, the gripper includes a cylindrical wall that surrounds a hollow space and has a sealed end. The cylindrical wall has a gap for the needle of the sewing machine to enter the hollow space. The cylindrical wall has a beveled groove for the lower thread to pass through. The gripper includes a wire spring to create resistance to the lower thread of the sewing system. The clamping jaw includes a spring that is attached to the first conduit or the second conduit. The gripper includes a pin tab to hold the clip in place. The gripper includes a finger latch for inserting or removing the gripper from the sewing system.

In another embodiment, the gripper has a slider that is attached with an extended neck for locking the gripper to a suitable position and the extended neck for preventing rotation.

In another embodiment, the clamp has a latch and the cylindrical wall functions as a sleeve over the latch in the clamp holder.

In another embodiment, the cylindrical wall has a C-shaped cross section.

In another embodiment, the clamping jaw has a spring clip to guide the wire to the bevel slot.

From time to time, the invention described herein is described below with respect to an exemplary environment.

Descriptions of these environments are provided to allow for various features and embodiments of the invention to be described in the context of exemplary applications. For those skilled in the art, after reading this specification, it will be apparent how the invention can be practiced in different and alternative environments.

Figures 1-9 are first feeder systems suitable for use in a sewing machine in accordance with some embodiments of the present invention. Figures 10-26 are second feeder systems suitable for use in a sewing machine in accordance with some embodiments of the present invention. Figures 27-31 are clips configured to be coupled to and used with a first feeder system or a second feeder system in accordance with some embodiments of the present invention.

First feeder system

The first feeder system for sewing machines is described. The first feeder system can be a high speed system in use. Referring to Figures 1-7, the outer bearing 1 has a support point 2 that can be used to secure the outer bearing 1 to the base of the sewing machine. The outer bearing 1 has an inner recess 3 for the placement of the ball bearing 4 or the roller, which is maintained in position by riveting the spherical trunk 5 or any other suitable means. The inner bearing has an inner bearing body 6 having an inner bearing body main hub member 7, whereby the body can be fixed to the outer bearing 1. The outer bearing 1 can include a ball bearing 4 or roller that is held in place by riveting the ball-shaped cab 5 or any other suitable means. The inner bearing body 6 has a shaped top or forming portion for use as an inner bearing body cutting portion 8 for accommodating the first control wire retainer 9.

The first control wire retainer 9 has an annularly extending control wire retainer rib 10 that extends along the circumference and is interrupted in an interruption zone 11 so that it can be placed in the inner bearing body 6. The interruption zone 11 in the wire holder rib 10 abuts the top of the first wire clamp fixture 9 and also abuts the groove 12 on the outer surface thereof, the outer surface is fixed to the lower surface of the machine chassis and The general finger (not shown) of the sewing machine's conventional needle plate (not shown) fits. In some embodiments of the invention, the first tension clamp fixture 9 includes a first recess 31 on a side of its inner wall. The notch is mated with the gripper and will be further described below with reference to Figures 27-31. The first recess 31 is selectively located at the edge of the first clamp 匣 holder 9 furthest from the inner bearing body 6.

The finger is used to prevent the first control wire retainer 9 from rotating due to the frictional drag of the inner bearing body 6. The first control line 匣 holder 9 has a vertical bracket 13 at the rear, and a first horizontal pin 14 is disposed at the center to accommodate a clamping 匣 (not shown). Below the first horizontal pin 14 of the vertical bracket 13 is a cutting portion 15 for the passage of the feeder tube 16 (see Fig. 2). The control nipper rib 10 on the first nipper holder 9 cooperates with the inner groove 17, and the inner groove 17 extends over the peripheral wall of the inner bearing body 6 and forms an alcove (see Figure 7). ). The inner groove 17 is partially cut or otherwise formed directly on the wall of the inner bearing body 6 and partially closed on its outer side by a wedge retainer 18. The wedge retainer 18 is fixed to the wall of the inner bearing body 6 by screws 19. The wedge retainer 18 has an inwardly extending flange 20 for forming an outer wall of the inner groove 17. The peripheral surface of the wire holder rib 10 is coupled to the inwardly facing surface of the groove 17 formed in the inner bearing body 6.

The first control loop retainer 9 can abut any appreciable pivoting associated with the inner bearing body 6 by the wedge retainer flange 20 and the corresponding relatively inwardly extending wall. The wedge retainer 18 is secured to the wall of the inner bearing body 6 by screws 19, rivets or any other suitable means. The inner bearing body 6 has an integral body-inwardly extending flange 21 on the inner wall of the hook groove. The body inwardly extending flange 21 extends from the point where the main hook nose 22 abuts to the point where the abutment point of the front end of the insert 23 is located. As previously described, another portion of the inner groove 17 is closed at its outer side by the wedge retainer flange 20 of the wedge member 18. The closure of the inner groove 17 extends from the rear end of the insert 23 of the inner bearing body 6 to the main hook nose 22. When attached to the inner bearing body 6, the abutting points also extend into an area adjacent the front end of the main hook body tip 22 and the first retainer 24. The first retainer 24 is fixed to the peripheral surface of the inner bearing body 6. It can also be secured in place by means of screws 19, rivets or any other suitable means.

The rear end of the first retainer 24 abuts the region of the main hook nose 22, the opposite end of which has an outwardly projecting portion that serves as the first hub point 26. A gap is formed between the groove 25 and the main hook tip 22 and is located at the rear end of the first retainer 24. This gap allows the lower needle (not shown) to pass through at an appropriate point in the cycle of operation of the bearing body 6 that partially defines the nozzle 25 to cooperate with the hook. At the front end thereof, the first retainer 24 extends to a position 26 (first line point) opposite to the main hook tip 22, and the stitch formed by grasping the upper line is accompanied by the bur to cooperate with the bur. The gap between the main hook tip 22 and the slot 25 is withdrawn. The first retainer 24 can be secured to the inner bearing body 6 using screws 19, rivets or any other suitable means.

The inner bearing body 6 is driven by a gear mechanism of the main drive shaft of the machine. The first gear teeth 27 of the gear of the inner bearing body 6 may be located at the inner, outer or front region of the main bearing body main hub 7. In the inner space of the inner bearing body 6, the lock pin can be fed through the inner portion of the inner bearing body 6, and the wire can be directly fed into the pinch 匣 (not shown) via the feeder tube 16 without re-writing. Load the spool.

Feeder tube 16 has a cropped portion 28 at one end to create a conduit for the lead and allows the wire to smoothly slide into the gripper (not shown) at the desired angle. One half of the circumference can be cut at about three-eighths of a turn of the feeder tube 16 or any other suitable/appropriate size and removed from the tube to form a cut portion. The feeder tube 16 does not extend further beyond the locking point of the first horizontal pin 14 of the first control line retainer 9, and can be fixed at an appropriate position of the cutting portion 15 of the vertical bracket 13, and the vertical bracket 13 is first. A part of the wire clamp holder 9. The cutting portion on the rear outer side of the feeder tube 16 is a flat recess 29, and the profit feeder tube 16 is clamped in place to ensure that the wire exits the feeder tube 16 at the correct angle while avoiding any movement of the feeder tube 16. The feeder tube 16 is mounted in the gap and is used to guide the wire to the hooked conduit, which can remain stationary when the hook is rotated or swung.

Referring to Figures 8 and 9, in the embodiment, the inner bearing body 6 is driven by a drive mechanism 30 comprising a gear mechanism of the main drive shaft of the machine. The first gear teeth 27 of the inner bearing body 6 are located inside the inner bearing body main hub 7. Referring to Fig. 9, the pinion of the drive mechanism 30 is disengaged from the main shaft of the sewing machine to drive the first gear teeth 27. In the inner space of the inner bearing body 6, the lower needle can be fed through the inner portion of the inner bearing body 6, and the wire can be directly fed into the wire clamp (not shown) via the feeder tube 16 without re-writing. Load the spool.

Second feeder system

Referring to Figures 10-26, a second feeder system 100 of the present invention includes an outer bearing retainer 101, an outer bearing hook 105, an inner bearing finger shaft 126, and an outer bearing hook 105, in accordance with certain embodiments of the present invention. A rolling element such as a spherical bearing 109 that is attached to the inner bearing finger shaft 126.

The outer bearing retainer 101 has a support point 102 that secures the system to the base of the sewing machine. The outer bearing positioning seat 101 has a hollow shape and has a cylindrical inner wall to which an inner groove 103 extending over the inner periphery of the outer bearing positioning seat 101 is attached.

The outer bearing hook 105 is for insertion into the outer bearing retainer 101 having an outer wall including a cylindrical section having ribs extending radially along the circumference of the outer bearing hook 105 Part 104. When the outer bearing hook 105 is inserted into the outer bearing retainer 101, the outer bearing hook 105 is substantially concentric with the outer bearing retainer 101 and the rib 104 will cooperate with the inner recess 103. In this manner, the outer bearing hook 105 is blocked by the outer bearing retainer 101 and can rotate or oscillate about the axis of the inner wall of the outer bearing retainer 101.

The inner groove 103 is partially cut or otherwise formed directly in the inner wall of the outer bearing retainer 101. The outer bearing retainer 101 is partially cut so that the outer bearing hook 105 is inserted, so that the inner groove 103 of the outer bearing retainer 101 does not completely circle around the inner wall of the retainer. The missing portion of the positioning seat is closed at its outer side by means of a positioning wedge 106 or the like. The positioning wedge 106 can be erected to the positioning seat after the outer bearing hook 105 is inserted into the outer bearing positioning block 101. The positioning wedge 106 has a flange extending radially from a central axial direction of the cylindrical inner wall of the outer bearing positioning seat 101, and if the positioning wedge 106 is coupled to the outer bearing positioning seat 101, the inner side is engraved with a complete The notch of the inner groove 103 of the ring. In this manner, the positioning wedge 106 ensures that the outer bearing hook 105 does not wobble or fall when it is rotated or swung along the fixed path within the outer bearing retainer 101. The positioning wedge 106 can be secured to the outer bearing retainer 101 using screws 107, rivet welding, or any other suitable means.

The outer bearing hook body 105 is an outer bearing. On the inner wall of the outer bearing hook body 105 is a main hub member 108 into which, for example, a rolling element such as a spherical bearing 109 or a roller can be placed, and the riveted housing 110 can be selectively maintained in position. The rolling elements may allow the outer bearing hooks 105 to rotate relative to the inner bearing finger shaft 126 (for use as an inner bearing) as will be explained below.

The outer bearing hook body 105 has a second cylindrical portion, and the second cylindrical portion is provided with a cutting portion 111. The cutting portion 111 interrupts the cylindrical outer shape of the second cylindrical portion, and forms a tip shape (first tip) 114 at one end of the cut portion 111, and a front end 115 at the opposite end of the cut portion 111. The trimming portion 111 is configured to allow the outer bearing hook body 105 to receive the second wire grip holder 112. A section of the inner portion of the outer bearing hook body 105 is cylindrical and includes a second inner recessed groove 113 at one end of the inner wall of the outer bearing hook body 105. This second inner groove 113 extends from the inner surface of the first tip 114 to the inner surface of the front end 115 of the cut portion 111. The second inner groove 113 is located at the edge of the outer bearing hook 105 and is covered at the edge by a flange 116 that is attached to the outer surface of the outer bearing hook 105 by a radially inwardly extending flange 116. In this manner, when the positioning wedge member 117 is in contact with the outer bearing hook 105, the second inner groove 113 has a proximal side wall formed inside the inner surface of the outer bearing hook body 105, and a distal side wall formed near the flange 116. As will be described later, the second inner groove 113 can accommodate the annular extending rib 122 of the stationary second control wire retainer 112 and surround the outer bearing hook 105 with a fixed path. The two control line 匣 holder 112 rotates or swings. The positioning wedge member 117 can be secured to the outer bearing hook 105 using screws 107 or any other suitable means.

The member located on the opposite outer surface of the positioning wedge member 117 and fixed to the outer peripheral surface of the outer bearing hook body 105 is a second retainer 119 which is bent into a shape matching the cylindrical shape of the outer wall of the outer bearing hook body 105. The second retainer 119 can be secured in place using screws 107, rivets, or any other suitable means. The second retainer 119 has two ends, wherein the first end of the curved section is disposed at a position adjacent to the area of the first tip 114; and the second end of the curved section is opposite the first end It has an extension that protrudes on the curve and can function as the second collection point 120. The width of the first end tapers along the axial direction of the cylindrical outer bearing hook 105, thereby forming a second tip shape 121 at the first end of the second retainer 119. The projections located at the second end of the second retainer 119 can function as the second hub point 120.

As shown in Fig. 11, the first tip 114 and the second tip outer shape 121 are tapered toward each other in the opposite direction so that a gap is formed between the first tip 114 and the edge of the second tip outer shape 121. The gap allows the downwardly moving bur 152 to pass through and forms a gap between the first tip 114 and the second tip outer shape 121 for a short time at an appropriate point in the operating cycle of the outer bearing hook 105.

At the second end of the second retainer 119, the second hub point 120 is disposed so that during the rotation or swing of the outer bearing hook 105, the coil formed by the upper thread (not shown) is accompanied by the sewing machine. The needle 152 is withdrawn from the gap between the first tip 114 and the second tip outer shape 121.

The second control wire retainer 112 has a cylindrical section having a circular portion extending radially outward from the outer surface of the second wire guide holder 112 along a circumferential portion of the cylindrical section. The ribs 122 are extended. The annular extension rib 122 is interrupted in the interruption zone 123 so that the second control wire retainer 112 can be inserted into the outer bearing hook 105. This interruption zone 123 is located adjacent the area of the top of the second control wire holder 112 and abuts the extension/groove 124 extending radially from the outer surface of the second control wire holder 112. The extension/groove 124 is mated with a finger (not shown) that is attached to the base of the sewing machine. This finger is fingered to prevent the second control wire retainer 112 from rotating while the outer bearing hook 105 is rotating or swinging. The annular extending rib 122 on the second control wire retainer 112 cooperates with the second inner groove 113, and the second inner groove 113 extends over the inner wall periphery of the outer bearing hook 105, thereby hooking the outer bearing The body 105 is coupled to the second control wire retainer 112 while allowing the outer bearing hook 105 to rotate relative to the second control wire retainer 112. In some embodiments of the invention, the second tension clamp fixture 112 includes a second recess 134 on a side of its inner wall. The recess 134 is mated with the gripper and will be further clarified below in connection with Figures 27-31. The second recess 134 is selectively positionable about the edge of the second nipper holder 112 that is furthest from the outer bearing hook 105.

The outer bearing hook body 105 is driven by a gear mechanism of the main drive shaft of the sewing machine. The second gear 125 of the outer bearing hook 105 is used to match the gear drive mechanism of the sewing machine. In this manner, when the gear mechanism rotates or swings, the second gear 125 also rotates or oscillates, causing the outer bearing hook 105 to rotate or oscillate. The gear teeth to which the second gear 125 of the outer bearing hook 105 is applied may be located on the outer surface (Fig. 10, 11, 15, 20) or the inner surface (Fig. 19) of the outer bearing hook 105, or may be located The front end (Fig. 20) or the rear end of the outer bearing hook 105 (Fig. 10, 11, 15, 19).

An inner bearing finger shaft 126, which is an inner bearing, is disposed in the hollow section of the outer bearing hook body 105. The finger shaft has a main hub portion 127 to position and arrest the rolling elements described above. The rolling elements are urged against the outer surface of the inner bearing finger shaft 126 and the inner surface of the outer bearing hook body 105 to allow the outer bearing hook body 105 to be coaxially rotatable relative to the inner bearing finger shaft 126.

The inner bearing finger shaft 126 is of a hollow type and its front end is sealed by a second horizontal pin 128 provided with a locking groove 129. The inner bearing finger shaft 126 is provided with a hollow section to allow the wire 132 to pass therethrough. The second horizontal pin 128 is placed in the center to accommodate the gripper (described in more detail below with reference to Figures 27 to 31). The locking groove 129 is circumferentially concave around the end of the second horizontal pin 128. The locking groove 129 acts as a snap point to engage the gripper and hold the grip at the desired position.

At the rear of the locking groove 129 of the second horizontal pin 128, an exit aperture 130 is formed to allow the wire 132 to smoothly slide over the hollow portion of the inner bearing finger shaft 126 in advance to be ready for engagement with the clamping jaws.

The inner bearing finger shaft 126 is fixed to a position opposite to the sewing machine base 150 through the arrangement of the flat recess 131, and the flat recess 131 is a cutting portion on the outer side of the rear side of the shaft. In this manner, the finger shaft can be maintained in position through the retaining assembly 200 mounted on the sewing machine base 150 and cooperate with the recess 131 to ensure that the inner bearing finger shaft 126 can maintain a consistent direction so that the line can The outlet hole 130 in the inner bearing finger shaft 126 is passed out at a correct angle. As an example of the retaining assembly 200 shown in Figures 25 and 26, in this example, the retaining assembly includes a winder 202, a fastening screw 204, and a base 206. The base 206 and the sewing machine bottom 150 are connected by, for example, a screw 208. The base is coupled to the winder 202, and the winder 202 is shaped to grip the inner bearing finger shaft 126. A set screw 204 is provided for locking the gripper 202 about the finger axis, thereby clamping the finger shaft 126 and preventing the finger shaft 126 from rotating.

The machine base 150 is coupled to the sewing machine base 150 as illustrated in Figures 21-24 for feeding the lower thread into the feeder system 100 of the sewing machine. The feeder system 100 is positioned below the base of the sewing machine 150. The scope of the invention extends to a sewing machine having a feeder system 100.

Clamping clamp

Referring now to Figures 27-31, the clamp 匣 300 (also referred to as the clamp 匣) will be described in detail. In the first feeder system of Figs. 1-9, the tension 匣 300 is placed in the first control 匣 holder 9 and locked by the first horizontal pin 14. In the second feeder system 100 of Figures 10-26, the control line 300 is placed in the second control line holder 112 and locked by the second horizontal pin 128.

The gripper 300 includes a body, a spring 400, a horizontal pin tab 500, and a finger latch 600. The body has a hollow cylindrical outer shape and includes a cylindrical wall 302 having a cover 304 at one end. The cover 304 includes two projections 306 and 308 located at the bottom and top of the cover 304, respectively. The projections 306 and 308 extend longitudinally from the cylindrical wall 302. The first protruding portion 306 has a first duct extending laterally along the outer surface of the cover 304 for receiving and retaining the spring 400 and for receiving the first side of the slider 502 of the horizontal pin tab 500, Further elaborated below. The second projection 308 has a second conduit extending laterally along the outer surface of the cover 304 for receiving the second side of the carriage 502 of the horizontal pin tab 500, as will be further explained below. It should be noted that the configuration of the first protrusion 306 or the second protrusion 308 can maintain the spring 400 within its conduit.

The cover 304 is provided with a hole 310 at the center. The hole 310 is available for the first horizontal pin 14 of FIG. 1 or the second horizontal pin 128 of FIG. 10 to pass through the cover 304. On the side of the cover 304 facing the hollow space inside the cylindrical wall 302, the inner shaft 312 extends inwardly around at least a portion of the circumference of the bore 310. The inner shaft 312 is arranged to cover the first horizontal pin 14 of FIG. 1 or the second horizontal pin 128 of FIG. 10 to ensure that the clamping jaw 300 can be fixed with the first control line of FIG. The inner bearing finger shaft 126 of the 9 or 10 is stably connected. In some embodiments of the invention, a perforation is dug out of the inner cylindrical shaft, leaving an exit aperture 130 that serves as an opening to match the lower line of the bearing finger shaft 126 in FIG. The perforations can be in the form of holes or cut into rounded corners along the length of the shaft.

The cylindrical surface of the body has a gap 314 which allows the needle of the sewing machine and the lock needle accompanying the needle to enter the hollow space in the gripper and interact with the lower thread.

A beveled groove 318 is cut on one side of the cylindrical wall 302 for the lower thread to pass through. The beveled groove 318 provides a path for the lower wire to be prepared for engagement behind the wire spring 320 to assist in forming the lower wire into the resistance requirements required to lock the needle. The direction of the cutting chamfer slot 318 changes in accordance with the angular inclination across the body of the cylindrical wall 302 and abruptly turns to end at the end point 322. The termination point 322 is covered by a wire spring 320 on the outside of the cylindrical wall 302.

The wire spring 320 is a curved elongated sheet having a first end that is removably attached to the outer surface of the cylindrical wall 302, and the second end of the wire spring 320 is in a free state. The degree of curvature of the wire spring 320 conforms to the curvature of the cylindrical wall 302. The wire spring 320 may be removed and cleaned/replaced from time to time based on the poor quality of the wire causing the accumulation of the wire between the wire spring 320 and the cylindrical wall 302. In some embodiments of the invention, the first end of the wire spring 320 can be detachably coupled to the cylindrical wall 302 by screws 324, rivets or any other suitable means. If the wire spring 320 is coupled to the cylindrical wall 302 by a screw 324, the cylindrical wall 302 includes a first screw opening 326 through which the sharpening screw 324 passes.

In some embodiments of the present invention, a tightness adjusting screw 328 is interposed between one end of the wire spring 320 connected to the cylindrical wall 302 and the free end of the wire spring 320, and the locking screw 328 is tightened. To shorten the distance between the free end of the wire spring 320 and the cylindrical wall 302, the tightening adjustment screw 328 can also be loosened to increase the distance between the free end of the wire spring 320 and the cylindrical wall 302. The cylindrical wall 302 includes a second screw opening 330 through which the tightness adjustment screw 328 is passed.

According to some embodiments of the invention, the free end of the wire spring 320 has an inwardly downwardly biasing transverse rib 332. A wire feed slot 334 is cut into the cylindrical wall 302 to accommodate and cooperate with the downwardly directed lateral rib 332 to facilitate proper positioning of the lower wire delivered at the correct angle. The wire spring 320 must establish a resistance to prevent the lower wire from being excessively transferred to the cloth, thereby causing a so-called "knotted winding" condition. The control wire spring 320 places the lower wire under the control of the force and allows the proper amount of wire to be discharged by the operation and actuation of the sewing machine.

The wire spring 320 needs to be calibrated and adjusted for each wire and wire weight, so that the upper and lower wires can be used to form a lock stitch that meets the desired machining result in response to the sewing/embroidered fabric/material. When the nylon thread and the discounted elastic band and more variants of the product are used in the lower section of the sewing machine or the embroidery machine, the wire spring 320 is also required to be adjusted.

As the pinch or bobbin 匣 is gradually emptied, the free edge of the wire spring 320 will abut against the cylindrical wall 302, but when the wire is correctly placed in the pinch, the wire will slide between the wall and the spring, and A gap is formed between the free end of the wire spring 320 and the cylindrical wall 302. As the hooks of the upper thread move or rotate/swing, the upper and lower wires are intertwined to form a lock pin, and the free end of the wire spring 320 will leave the cylindrical wall 302 and then return to the cylindrical wall 302, as if The general switch is activated. If a thick line is used, the gap is wider, and the inwardly pressing rib 332 of FIG. 10 assists the wire spring 320 to return to the desired position and reduces/prevents any lateral movement, which may be It does cause the tightness adjustment screw 328 to loosen during the extension of the job.

Between the first protrusion 306 and the second protrusion 308, the cover 304 is flat and has two outer sides. In the first outer side, the cover body 304 has a first latch insertion hole 335 having an outer end facing the edge of the cover body 304 and an inner end facing the center of the cover body 304. The inner end of the first latch insertion hole 335 is wider than the remaining portion of the first latch insertion hole 335. On the second outer side, the cover 304 has a neck insertion hole 336 that extends along a portion of the cylindrical wall 302 to the edge of the cover 304.

The horizontal pin tab 500 includes a slider 502 and a neck 504. The carriage 502 is flat and extends along a plane that curves toward the other direction of the plane of the carriage 502 as the neck 504 extends from the outer side of the carriage 502. The carriage 502 includes a spring latching extension 506 that extends from the bottom side of the carriage 502 along the plane of the carriage 502. The carriage 502 has a locking hole 508 that surrounds the center of the carriage 502, and a second latch insertion hole 510 that is located on the side of the carriage 502 and that extends away from the neck 504. The outer shape of the second latch insertion hole 510 matches the outer shape of the first latch insertion hole 335.

The horizontal pin tabs 500 of the carriage 502 are configured to be insertable into the first and second conduits such that the horizontal pin tabs 500 can slide along the surface of the cover 304 in the conduit from one side of the conduit to The other side. The conduit limits the movement of the horizontal pin tab 500 along a single axis. The spring latching extension 506 of the carriage 502 is in contact with the spring 400 within the first conduit of the first projection 306. The spring 400 is inserted into the spring slot 307 to form the bottom of the first conduit of the first projection 306. As such, when the horizontal pin tab 500 is moved to one side of the first and second conduits, the spring snap extension 506 compresses the spring 400 against the rear end of the first conduit. Thus, when the spring snap extension 506 compresses the spring 400 within the first projection 306, the spring 400 limits the action of the horizontal pin tab 500 by applying a force to the spring snap extension 506.

The finger latch 600 includes a planar flap 602 and a curved extension 604 that extends from one side of the planar flap 602 to the other and is curved toward the other direction of the plane of the planar flap 602. The head 606 is located at the edge of the curved extension 604, and the top to bottom width of the head 606 is wider than the maximum width from top to bottom of the curved extension 604.

The spring 400 is inserted into the first conduit of the first projection 306 such that the first end of the spring 400 contacts the sidewall of the first conduit. Next, the horizontal pin tab 500 slides into the first and second conduits so that the spring snaps the extension 506 and contacts the second end of the spring 400. The first horizontal pin tab 500 is continuously pushed until the first latch insertion hole 335 on the cover body 304 is aligned with the second latch insertion hole 510 on the horizontal pin tab 500. The head 606 of the finger latch 600 is inserted into the inner (wider) end of the first latch insertion hole 335 and the second latch insertion hole 510. Next, the finger latch 600 is rotated such that the planar flap 602 lies flat on the carriage 502. As such, the head 606 of the finger latch 600 is radially outwardly pushed into the outer (narrower) end of the first latch insertion hole 335 and the second latch insertion hole 510. In this manner, the head 606 cannot pass through the narrower ends of the first latch insertion hole 335 and the second latch insertion hole 510, and the finger latch 600 is connected to the cover 304 and the horizontal pin tab 500.

In the operational mode, the planar flaps 602 of the finger latch 600 will rest flat against the carriage 502 of the horizontal pin tab 500. The first protrusion 306, together with the finger latch 600 and the second protrusion 308, form a convex surface configured to assist the smooth running of the casting and the lock needle when the lock needle slides through the surface to grasp the lock needle to form the lower thread. .

The neck 504 of the horizontal pin tab 500 is extended to fit the first notch 31 of the first control wire retainer 9 (see FIG. 1), or to the second control wire retainer 112 (see FIG. 10 The second recess 134 of Fig. 16 cooperates to avoid any rotation of the gripper. The horizontal pin tab 500 is maintained at a working position against the spring latching extension 506 due to the pressure of the spring 400. As the user opens the finger latch 600 (the planar flap 602 will rotate away from the carriage 502), the hinge formed by the curved extension 604 and the head 606 forces the horizontal pin tab 500 to slide laterally. In this manner, the locking hole 508 is aligned with the hole 310 in the cover body 304, and can be inserted or removed through the locking hole 508 of the horizontal pin tab 500 or the hole 310 in the cover body 304, inserting or removing the first horizontal pin of FIG. 14 or the second horizontal pin 128 of FIG. At the same time, the sliding on the horizontal pin cleat 500 causes the neck 504 to pull itself into the neck insertion hole 336, thereby pulling the gripper 300 from the first control 匣 holder 9 or the second control 匣 holder 112. Release, or allow the clamp 匣 300 to be inserted into the first control 匣 holder 9 or the second control 匣 holder 112.

After the gripper 300 is inserted into the first control loop retainer 9 or the second control loop retainer 112 (along with the raised finger latch), the finger latch 600 is rotated such that the planar flap 602 rests flat against the slider 502. . As a result, the horizontal pin tab 500 slides laterally, causing the locking hole 508 of the horizontal pin tab 500 to enclose the surrounding recess 14a surrounding the first feeder system of FIGS. 1-9, thereby the first horizontal pin 14 The tip of the clip is locked on the outside of the gripper 300 to prevent the gripper 300 from moving along the first horizontal pin 14. Similarly, the horizontal pin tab 500 slides laterally to close the locking hole 508 of the locking groove 129 of the second feeder system 100 surrounding the 10th to 26th, and the second horizontal pin 128 is locked to the clamping pocket 300. On the outside, the gripper 300 is prevented from moving along the second horizontal pin 128.

In some embodiments of the invention, a window 338 is cut into the first protrusion 306. In this way, the opportunity to access the lock pin can be provided, or the remaining wire can be pulled out of the wire clamp before any remaining wire is pulled through the wire feed slot 334.

In some embodiments of the invention, the outer wall of the inner shaft 312 is a first buckle point groove 340. The inner wall of the cylindrical wall body is a second buckle point groove 342. The two latching points grooves 340, 342 hold the bending spring clips 344 in place. Depending on the degree of curvature of the spring clip 344, the lead wire is passed through the exit point and slides across the curvature of the spring clip 344 before entering the beveled slot 318 of the clip body. The spring clips 344 are selectively removable whereby calibration of the wire springs 320 can be performed for different wires. This calibration procedure is similar to the manual calibration procedure used for shuttle and spool 匣. In the calibration procedure, insert a full-volume spool into the spool 匣. The user/technician installs a set of weights corresponding to the required resistance of the bobbin, and then pulls the line off-line; the bobbin 线, bobbin and weight are suspended in the air by the technician's hand, and the technician performs a series of urgency The handle moves, and the gravity pulls the bobbin to the bottom. The bobbin 停止 will stop against the bottom plate due to the tension applied to the wire by the wire spring 320. The distance from the bobbin 匣 to the spring stop action is how to calibrate the bobbin 匣. Those familiar with the relevant fields know how far this action/distance should be. Therefore, the curved spring clip 344 must be removed so that the spool can be inserted into the gripper 300 and the calibration procedure is performed.

Window 338 can optionally allow access to confirm whether spring clip 344 can guide the needle downline to the end point 322 of the bevel slot 318 as desired.

The present invention should not be construed as being limited to the details of the details of the preferred embodiments disclosed herein. This artist is easy to think about.

The following reference symbols are used throughout this document.

1‧‧‧Outer bearing

2‧‧‧Support points

3‧‧‧Outer bearing inner groove

4‧‧‧Spherical bearings

5‧‧‧Spherical compartment

6‧‧‧Inner bearing body

7‧‧‧Inner main body hub

8‧‧‧Inner bearing hook cutting section

9‧‧‧First control line clamp (also known as "first clamp")

10‧‧‧Control wire keeper rib

11‧‧‧Interrupted area

12‧‧‧Ditch mouth

13‧‧‧Vertical bracket

14‧‧‧First level of sales

14a‧‧‧ Around the recess

15‧‧‧Cut Department

16‧‧‧ Feeder tube

17‧‧‧Inside the bearing groove

18‧‧‧Wedge retainer

19‧‧‧ screws

20‧‧‧Wedge retainer flange

21‧‧‧The body extends inwardly to the flange

22‧‧‧Main hook body

23‧‧‧ Inserts

24‧‧‧First retainer

25‧‧‧Ditch mouth

26‧‧‧The first episode

27‧‧‧First gear teeth

28‧‧‧ Feeder tube cutting section

29‧‧‧ flat recess

30‧‧‧Drive mechanism

31‧‧‧ first notch

101‧‧‧Outer bearing positioning seat

102‧‧‧Support points

103‧‧‧ Inside groove

104‧‧‧ ribs

105‧‧‧Outer bearing hook body

106‧‧‧ positioning wedge

107‧‧‧ screws

108‧‧‧ main hub components

109‧‧‧Spherical bearings

110‧‧‧Riveted compartment

111‧‧‧Cut section

112‧‧‧Second control line clamp (also known as "second clamp clamp")

113‧‧‧Second inner groove

114‧‧‧first tip

115‧‧‧ Inserts

116‧‧‧Flange

117‧‧‧ positioning wedge members

118‧‧‧Ditch positioning point

119‧‧‧Second retainer

120‧‧‧Second line points

121‧‧‧Second tip shape

122‧‧‧Ring extended ribs

123‧‧‧Interrupted area

124‧‧‧Extension/ditch

125‧‧‧second gear

126‧‧‧Inside bearing shaft

127‧‧‧ main hub components

128‧‧‧Second level pin

129‧‧‧Lock groove

130‧‧‧Exit hole

131‧‧‧flat

132‧‧‧ line

134‧‧‧second notch

100‧‧‧ Feeder system

150‧‧‧Sewing machine

152‧‧‧ sewing machine needle

200‧‧‧ Keep components

202‧‧‧挟 器

204‧‧‧ fastening screws

206‧‧‧Retaining the base of the assembly

208‧‧‧ screws

300‧‧‧Control line (also known as "clip line")

302‧‧‧ cylindrical wall

304‧‧‧ cover

306‧‧‧ first highlight

307‧‧‧Spring slot

308‧‧‧second highlight

310‧‧‧ hole

312‧‧‧ inner axis

314‧‧‧ gap

318‧‧‧ oblique trough

320‧‧‧Control line spring

322‧‧‧End point

324‧‧‧ screws

326‧‧‧First screw opening

328‧‧‧tightness adjustment screw

330‧‧‧Second screw opening

332‧‧‧Inwardly pressing transverse ribs

334‧‧‧Send line slot

335‧‧‧First latch insertion hole

336‧‧‧Neck insertion hole

338‧‧‧ window

340‧‧‧First buckle lock ditch

342‧‧‧Second lock point ditch

344‧‧ ‧ spring clip

400‧‧‧ Spring

500‧‧‧ horizontal pin

502‧‧‧ slide

506‧‧‧Spring card extension

504‧‧‧ neck

508‧‧‧Lock hole

510‧‧‧Second latch insertion hole

600‧‧‧ finger bolt

602‧‧‧Flat fins

604‧‧‧Bend extension

606‧‧‧ head

The invention will be described in detail in accordance with one or more embodiments. The drawings are provided for illustrative purposes only and are merely illustrative of typical or exemplary embodiments of the invention. The figures are provided to facilitate the reader's understanding of the invention and are not to be construed as limiting the scope, scope, or applicability of the invention. It should be noted that these figures are not necessarily drawn to scale for clarity and ease of drawing.

Some of the drawings contained herein are illustrative of various embodiments of the invention in various aspects. Although the accompanying descriptive text may refer to such a view as a "deep", "bottom" or "side" view, such statements are for descriptive purposes only and are not intended to imply or require that the invention must be Implement or apply in a specific spatial direction.

1 is an exploded view of a first wireless axis feed line system in accordance with some embodiments of the present invention;

Figure 2 is a front elevational view of the wireless axis feeder system of Figure 1;

Figure 3 is a side view of the feeder tube of the wireless axis feeder system of Figure 1;

Figure 4 is a plan view of the feeder tube of the wireless axis feeder system of Figure 1;

Figure 5 is a cross-sectional view of the feeder tube of the wireless axis feeder system of Figure 1;

Figure 6 is a side view of the wireless axis feeder system of Figure 1;

Figure 7 is a side cross-sectional view of the wireless shaft feeder system of Figure 1;

Figure 8 is a perspective view of the inner hub of the inner bearing body of the wireless shaft feeder system of Figure 1, wherein the teeth on the inner surface of the main hub of the inner bearing body are visible;

Figure 9 is a cross-sectional view of the inner bearing body of the wireless shaft feeder system of Figure 1, together with the teeth and the drive mechanism on the inner surface of the inner bearing body;

Figure 10 is an exploded view of a second wireless axis feed line system in accordance with some embodiments of the present invention;

Figure 11 is a side elevational view of the wireless axis feed line system of Figure 10 in accordance with some embodiments of the present invention;

Figure 12 is a cross-sectional side view of a wireless axis feed line system in accordance with a tenth embodiment of the present invention;

Figure 13 is a side elevational view of the finger shaft of the wireless axis feed line system of Figure 10 in accordance with some embodiments of the present invention;

Figure 14 is a cross-sectional side view of the finger shaft of the wireless axis feed line system of Figure 10 in accordance with some embodiments of the present invention;

Figure 15 is a side elevational view of the outer bearing hook body of the wireless shaft feeder system of Figure 10 in accordance with some embodiments of the present invention;

Figure 16 is a perspective view of a gripper holder in a wireless shaft feeder system of Fig. 10 in accordance with some embodiments of the present invention;

Figure 17 is a cross-sectional side view of the outer bearing hook body of the wireless shaft feeder system of Figure 10 and its connection to the clamp yoke according to the tenth embodiment of the present invention;

Figure 18 is a front elevational view of the gripper holder of the wireless shaft feeder system of Figure 10 in accordance with some embodiments of the present invention;

Figure 19 is a perspective view of an outer bearing hook body in a wireless shaft feeder system according to a tenth embodiment of the present invention, having gear teeth extending radially inwardly on the inner surface of the outer bearing hook;

Figure 20 is a perspective view of an outer bearing hook body in a wireless shaft feeder system according to a tenth embodiment of the present invention, having gear teeth located at a front end of the rib connecting the outer bearing hook body to the positioning seat;

Figure 21 is a side elevational view of the wireless shaft feeder system of Figure 10 prior to engagement with the base of the sewing machine in accordance with some embodiments of the present invention;

Figure 22 is a side elevational view of the wireless shaft feed line system of Figure 10 in accordance with some embodiments of the present invention;

Figure 23 is a plan view showing the wireless shaft feeder system of Figure 10 in contact with the sewing machine base according to some embodiments of the present invention;

Figure 24 is a front elevational view of the wireless shaft feed line system of Figure 10 in connection with the sewing machine base, in accordance with some embodiments of the present invention;

Figure 25 is a perspective view of a jig for holding the finger shaft in the wireless axis feeder system of Figure 10;

Figure 26 is a front view of the jig of Figure 25;

Figure 27 is a three-quarter exploded perspective view of a clamping jaw configured to be coupled to a wireless shaft feeder system in accordance with Figure 1 or Figure 10 of some embodiments of the present invention;

Figure 28 is a three-quarter perspective view of the pinch 第 of Figure 27, illustrating the front and side of the pinch ;;

Figure 29 is a front view of the pinch 第 of Figure 27;

Figure 30 is a three-quarter perspective view of the pinch 第 of Figure 27, illustrating the back and sides of the pinch ;;

Figure 31 is a rear elevational view of the pinch 第 of Figure 27.

The drawings are not intended to be exhaustive or to limit the invention. It is to be understood that the invention may be modified and substituted, and the invention is limited only by the scope of the claims and their equivalents.

Claims (14)

A feeder system suitable for a sewing machine, the feeder system comprising: An inner bearing; a hook for rotating or oscillating to form a part of the inner bearing; an outer bearing mounted on the base of the sewing machine and attached to the inner bearing; a rolling element for connecting the inner bearing To the outer bearing; an inner gap passing through the inner bearing to the hook; and a drive mechanism coupled to the inner bearing. The feeder system of claim 1, further comprising a fixed feeder tube disposed in the inner gap and configured to guide the wire to the hook of the hook, when the hook rotates or swings, the fixing The feeder tube remains stationary. The feeder system of claim 1, wherein the drive mechanism is driven by gear teeth located in an inner, outer or rear region of the inner bearing. The feeder system of claim 2, wherein the outlet end of the feeder tube is in an open configuration to extend the line into a clamping loop. The feeder system of claim 1, wherein the inner bearing has a forming portion that provides an alcove for receiving a control wire retainer. The feeder system of claim 1, further comprising a bracket having a first horizontal pin at a center thereof for receiving a clamping jaw, the first horizontal pin having a latch a point, wherein the bracket has a cutting portion to accommodate a feeder tube; wherein the feeder tube extends no more than the buckle point of the first horizontal pin. The feeder system of claim 1, further comprising: a control wire retainer having an annular extending rib and an interruption zone to allow the wire clamp holder to be inserted into the inner bearing a recessed groove conforming to the shape of the annular extending rib, wherein the inner groove extends over the peripheral wall of the inner bearing; and a retainer having a rear end for positioning with a hook tip Adjacent to the nozzle, and an outwardly projecting portion including a set of line points, wherein the inner groove is formed in the inner bearing wall and closed to an outer side by a wedge retainer; wherein the wedge guard The ring has an inwardly extending flange for forming the outer wall of the inner groove; wherein a circumferential surface of the annular extending rib is coupled to an inwardly facing surface of the inner groove formed in the inner bearing; The inner bearing has an inwardly extending flange on the inner wall of the inner groove, the inwardly extending flange extending from a point where the hook nozzle abuts to an adjacent point of the front end of the insert; a closed outer side of the inner groove, from the rear end of the insert and the wedge retainer The collecting point extends; wherein a gap is formed between the groove and the hook tip, the gap providing a passage to the lower needle; wherein the front end of the retainer extends to a position adjacent to the hook tip. A feeder system suitable for a sewing machine, comprising: a retaining ring for contacting the base of the sewing machine; an outer bearing hook body comprising a hook connected to the retaining ring, the outer bearing hook body being in the retaining ring Rotating or oscillating along a fixed path, thereby causing the hook to rotate or oscillate; a hollow-shaped inner bearing finger shaft having an outlet hole on one side thereof, the inner bearing finger shaft allowing the wire to pass through and through The outlet hole leads the wire to the hook; and a rolling element connecting the inner bearing finger shaft to the outer bearing hook body and configured to rotate the outer bearing hook body relative to the inner bearing finger axis Wherein the inner bearing finger shaft is configured to remain stationary when the hook is rotated or swung. A clamping loop is coupled to a wireless shaft underfeed feeder system of a sewing machine and establishes a pulling force and resistance against a lower thread during formation of a lower locking pin, the clamping loop comprising: a cylindrical wall surrounding a hollow space and having a first end and a second end, the second end being capped, the cylindrical wall having a gap for the needle of the sewing machine to enter the hollow space, the cylindrical wall having a beveled groove to provide Passing the lower thread, the inclined groove extending along the cylindrical wall at an oblique angle, and suddenly turning before ending at a termination point; a cover covering the second end, the cover having a central portion a hole located at a center of the cover body, the cover body comprising: an inner shaft extending around the peripheral edge of the central hole to extend into the hollow space in the cylindrical wall; a first protrusion located at the cover a bottom of an outer surface of the body facing away from the hollow space; a second protrusion located at a top of the outer surface of the cover; a first duct dug at the first protrusion along the cover The outer surface extends laterally and faces the second protrusion And a second duct disposed in the second protrusion, extending laterally along the outer surface of the cover body and facing the first protrusion; a wire control spring comprising a curved elongated sheet, A first edge that is in contact with the cylindrical wall, and a second edge that is not in contact with the cylindrical wall with respect to the first edge, the curved elongated sheet has a curvature, and the cylindrical wall a first curvature conforms, the control wire spring covers a portion of the bevel groove and the end point; a spring is disposed in the first pipe or the second pipe; a pin piece includes: a flat a slider extending along a first plane, inserted into the first conduit and the second conduit, and sliding along the outer surface of the cover in the first conduit and the second conduit, The flat slider includes a top portion and a spring locking extension extending upward or downward along the first plane, the spring locking extension portion being disposed in the first conduit or the second conduit One end of the spring is in contact; and a locking hole is located at or near the center of the carriage; a finger latch having an end detachably attached to the pin piece, disposed on an outer surface of the sliding seat and engaged with the pin piece so that the finger latch is lifted from the pin piece Initiating the finger latch to rotate relative to the pin buckle and causing the pin buckle to slide laterally to align the central hole of the cover with the locking hole of the slider to allow a latch of the lower wire feeder system Can be inserted into the gripper. The entanglement cassette of claim 9, wherein the cover body comprises: a first latch insertion hole located laterally of the central hole, the first latch insertion hole having an edge facing the cover An outer end and an inner end facing the center of the cover, the inner end of the first latch insertion hole being wider than the rest of the first latch insertion hole; the slider comprising: a second latch An insertion hole having an outer shape matching the outer shape of the first latch insertion hole; the finger latch comprising: a planar fin extending along a second plane; and a curved extension from the side of the planar fin Extending to the other side and bending toward the other direction of the second plane, the curved extension having a head located at an edge of the curved extension, the head having a width from top to bottom, The maximum width of the curved extension from top to bottom is also wide; by inserting the head of the finger latch into the wider end of the first latch insertion hole and the second latch insertion hole and rotating the finger latch to The finger latch, the slider and the cover body are joined together, such that the head is radially outwardly pushed toward the The first latch insertion hole and the narrower end of the second latch insertion hole. The entanglement of the ninth aspect of the invention, wherein the cylindrical wall comprises: a first screw opening; the control wire spring comprises: a second screw opening, aligned with the first screw opening The clamping clamp includes: an adjusting screw for opening the second screw opening and the second screw opening, and being locked to shorten a distance from the cylindrical wall to a free edge, and It can be relaxed to increase the distance from the cylindrical wall to the free edge. The tensioning wire according to claim 9, wherein the wire spring comprises: an inner downward pressing rib located at a free edge, when no wire exists between the cylindrical wall and the wire spring, The inwardly pressing rib is for contacting the cylindrical wall; a pin for holding the clamping wire in place; and a finger latch for inserting or removing the clamping wire from the sewing system . The shackle of the ninth aspect of the invention, further comprising: a sliding seat, which is provided with an extending neck for locking the clamping raft to a proper position, and the extending neck is for preventing Turn. The utility model relates to a clamping cymbal, which cooperates with a wireless shaft sewing system of a lock needle sewing machine, the clamping cymbal comprising: a cylindrical wall surrounding a hollow space and having a sealed end, the cylindrical wall having a gap, the gap Having the needle of the sewing machine enter the hollow space, the cylindrical wall has a chamfered groove to provide a lower thread; a control line spring generates resistance against the lower thread of the sewing system; and a pin piece for holding the The clamp is in place; and a finger latch is used to insert or remove the clamp from the sewing system.