JP2001009183A - Bobbin stand with yarn holder and yarn holder - Google Patents

Abstract

PROBLEM TO BE SOLVED: To perform a work by simultaneous use of a number of yarns and immediately draw and use a desired yarn in the sitting state by raising a number of bobbin stands on a plate board, and setting a number of yarn holders on a support plate vertically set on struts on the board. SOLUTION: A number of this bobbin stands 2 are raised on a board 1 fixed to the rear side of the table 36 of a sewing machine by a clamp, and a yarn 37 drawn from a bobbin 38 raised on each bobbin stand 2 is guided to a yarn holder 5 fixed to a vertical support plate 4 on the upper part of struts 3 through a guide pipe 27 and a cover body 26. In the yarn holder 5, a built-in pressing part 17 is pressed to lay the yarn 37 in the unlocked state, and the yarn 37 is drawn through a yarn insert hole 18, and set on the sewing machine to perform a sewing. When the replacement of the yarn 37 is required during the work, the yarn 37 is cut, and another yarn is selected and drawn from the corresponding yarn holder 5. When the yarn 37 is stopped in use, the pressing part 17 is depressed and the yarn 37 is locked and retained.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a thread spool with a thread holder attached to a sewing machine for business use, and a thread holder used therefor.

[0002]

2. Description of the Related Art Conventionally, a sewing machine for business use is usually provided with two spools. However, because there are only two,
This is inconvenient when it is necessary to perform embroidery or the like using multicolored threads.

[0003]

As described above, the conventional winding machine used in a conventional business sewing machine usually has two spools, so that the work of exchanging the threads is troublesome and a large time loss occurs. I was In a recent sewing operation, the range of colors of the thread to be used is widened, and it is necessary to always provide a thread of 10 colors. For this reason, the thread changing operation has become frequent, and the operator has to stand up every time, and the physical strength has been consumed at the same time as the loss of time. In addition, the end of the thread set in the spool was cut off with scissors. For this reason, the yarn may be separated due to wind, vibration of the sewing machine, or the like, and adjacent yarns may be entangled. When such a situation occurs, another useless work is required.

[0004]

The gist of the thread spool with a thread retainer according to the present invention is that a large number of thread spools are erected on a substrate having a predetermined area, and the thread spool is erected on the substrate. There is provided a thread spool with a thread retainer in which a support plate is installed substantially vertically by a provided support, and a thread retainer is further installed on the support plate. As a result, it is possible to work with a large number of threads at the same time, and to immediately pull out and use a desired thread while sitting, greatly reducing the time required for thread replacement and wasting the worker's physical strength. And the work efficiency is improved, and at the same time, by holding the ends of the yarns, the entanglement of the yarns can be prevented.

Further, the thread retainer of the present invention comprises a cylindrical portion having a distal end portion in which elastic means such as a coil spring are housed, and a notch provided in a rear portion, and a hole formed in the center of the cylindrical portion. A thread retainer body that is penetrated and a stopper pin is rotatably fitted in a small hole provided at the bottom of the hole, and a thread holder is slidably fitted into the hole of the thread retainer body, An operating rod having a pressing portion is formed, a thread insertion hole is provided through the center of the pressing portion and the operating rod, a notch is provided at a rear portion of the operating rod, and a spring plate for pressing a thread is disposed in the notch. Further, it is characterized in that it comprises a thread fixing operation rod having a groove portion into which the tip of the stopper pin is slidably fitted on the bottom surface of the operation rod.

Another yarn holding device of the present invention is a yarn holding device in which a circular hole is provided at the center and elastic pressing means for pressing a yarn pressing piece provided on a yarn fixing operation rod is provided in the vicinity of the tip. A retainer main body, which is fitted in a circular hole of the yarn retainer main body so as to be rotatable in the circumferential direction, constitutes a rotary knob at the distal end, and a thread insertion hole is provided at the center portion, and further, a portion near the distal end A cut-off portion reaching the thread insertion hole is provided, and the cut-out portion is provided with a thread fixing operation rod which pivotally supports a thread pressing piece so as to rotate in a direction orthogonal to the thread insertion hole. .

[0007]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a front perspective view of the present embodiment, FIG. 2 is a rear perspective view, FIG. 3 is a side view of a state where the thread holder is set on a sewing machine table, FIG. FIG. 6 is a side view of the thread retainer in the unlocked state in the central longitudinal section, FIG. 6 is a partially sectional side view of the thread retainer, FIG. 7 is a front view thereof, FIG.
Is a side view of the thread fixing operation rod, FIG. 10 is a front view thereof, FIG.
12 is a plan view, FIG. 12 is a bottom view, FIG. 13 is a perspective view of a thread pressing spring plate, FIG. 14 is a perspective view of a stopper pin, and FIG.
5 is a longitudinal side view of the cover body, and FIGS. 16 to 20 are explanatory views of the operation of locking and releasing the thread retainer.

In FIG. 1 and FIG. 2, reference numeral 1 denotes a substrate having a predetermined area, and a number of, in this embodiment, eleven thread spools 2 are erected on the upper surface. In addition, the substrate 1 has notches 1a and 1b for fitting a set screw near the rear of one side edge and substantially at the center of the rear.

Reference numeral 3 denotes a support standing upright at the left and right ends of the substrate 1, and reference numeral 4 denotes a support plate fixed to the upper end of the support 3, 3 in a substantially vertical state. Further, the support plate 4 is provided with fitting holes 4a, 4a,.

Reference numeral 5 denotes a yarn holder installed in parallel with the support plate 4. Since the number of the yarn holders 5 corresponds to the number of the spools 2, the number of the yarn holders 5 is usually the same. Further, as shown in FIG. 4, the thread retainer 5 includes a thread retainer body 6 fixed to the support plate 4 and a thread fixing operation rod slidably mounted within the thread retainer body 6 at a predetermined stroke. 15, a coil spring 24, and a cover body 26 to which a yarn guide tube 27 is connected.

As shown in FIGS. 6 to 8, reference numeral 6 denotes a main body of a thread retainer, which has a required length L around its outer periphery except for a front end portion 7.
And a notch 9 is provided on the upper surface side of the rear end (right side in the figure) so as to become gradually lower toward the rear end. Has reached a square hole 12 described later. At the front end of the cylindrical portion 10, the cylindrical portion 1
A tip portion 11 having a diameter slightly larger than 0 is integrally formed, and a square hole 12 is formed in the center of the cylindrical portion 10 along the axial direction. A small hole 13 is provided at the center of the lower part of the square hole 12 in the width direction, and the small hole 13 has a downwardly extending stopper pin 14 having a distal end portion 14a bent upward as shown in FIGS. The base 14b is rotatably fitted. And
A magnet M is provided at the bottom of the thread retainer body 6. The magnet M is provided for ensuring the operation state of the stopper pin 14 as described later.

FIGS. 9 to 12 show the operation lever 15 for fixing the thread. This is slidably inserted into a square hole 12 provided in the cylindrical portion 10 of the thread retainer main body 6 as shown in FIG. And a flange-shaped pressing portion 17 integrally formed at the front end of the front end. A thread insertion hole 18 is provided in the center of the pressing portion 17 and the operating rod 16 along the axial direction, and a substantially wedge-shaped notch 19 having a depth reaching the thread insertion hole 18 at the rear of the operating rod 16.
Is provided.

As shown in FIG. 13, a spring plate 20 having an inverted V-shaped cross section having a tip portion 20a for pressing a thread is formed.
The width W of the distal end portion 20 a of the spring plate 20 is configured to be wider than the width of the operation rod 16. Then, as shown in FIG. 4, the spring plate 20 is attached to the upper surface of the rear end of the operating rod 16 so as to be able to bend and extend in the vertical direction, and the notch 19 is formed so that the tip 20a faces forward (left side in the figure). Face inside. A recess 21 is provided at the center of the lower surface of the operating rod 16 so that the stopper pin 14 can rotate about the base 14 b as a fulcrum. A groove 22 is formed in the recess 21. As shown in FIG. 12, the groove 22 is formed at the tip 14 a of the stopper pin 14.
Are slidably fitted to each other.
A linear portion 22a extending in the axial direction at a position slightly deviated from the center line of the width of the straight line, and a bifurcated portion 22b continuing to the front (left side in the figure) end of the linear portion 22a. Further, the forked portion 22b is connected by a V-shaped groove 22c in the vicinity of the distal end.

Further, at the rear end of the lower surface side of the operating rod 16, a rectangular member 23 for retaining the rectangular shape is fixed. Reference numeral 24 denotes a coil spring as elastic means contracted between the cylindrical portion 10 and the pressing portion 17 of the thread fixing operation rod 15.

A cover 26 shown in FIG. 15 is screwed into the screw 8 of the thread holder body 6 to cover the rear end of the thread holder 5. Reference numeral 27 denotes a yarn guide tube connected to the cover body 26. In this embodiment, the thread guide tube 27 is curved downward, but may be straight.

FIG. 2 shows the clamp 28 used to fix the substrate 1 to the table 36 of the sewing machine. This clamp 2
Reference numeral 8 denotes a support plate 31 on which a tightening screw 30 is screwed extending at a right angle from the lower end of the column 29, and a holding plate 32 projecting above the support plate 31 at a required interval. Further, a board receiving plate 3 of a required size is provided on the upper end of the support 29.
5 is fixed at a right angle, and the substrate 1 is fixed by set screws 33 and 34.

Next, the operation of the present embodiment will be described. First, the substrate 1 is fixed to the rear side of the table 36 of the sewing machine MC using the clamp 28. Then each thread stand 2
The thread 37 of the thread spool 38 is guided to the thread holder 5 through the guide tube 27 and the cover body 26, and the pressing part 17 is pushed.
The lock of the thread 37 is released as shown in FIG. Then, the thread 37 is pulled out from the thread insertion hole 18 of the thread fixing operation rod 15. In this state, the thread 37 is sewn over the sewing machine. If it becomes necessary to replace the yarn during the operation, the yarn is cut, another yarn is selected, and the yarn is pulled out from the yarn holder 5 and used.

When the thread is not used after cutting,
When the pressing portion 17 is pressed, the end of the thread 37 is pressed against the distal end portion 20a of the spring plate 20 and locked as shown in FIG. Therefore, the end of the thread 37 is securely held.

The state shown in FIG. 4 will be described in more detail. First, when the operating portion 16 is retracted against the coil spring 24 by pressing the pressing portion 17, the spring plate 20
Of the thread retainer body 6 comes off from the notch 9. As a result, the distal end portion 20a of the spring plate 20 comes into contact with the thread 37, and the thread can be pressed downward.
And it is locked in this state.

When the thread is to be used again, the operating rod 16 is advanced as shown in FIG. This is the pressing part 17
When the lock is released, the operating rod 16 is pushed out by the pressing action of the coil spring 24, and accordingly, the spring plate 20 is released.
The leading end 20a rides on the oblique cutout 9 of the thread retainer main body 6, and the pressing on the thread 37 is released.

Next, the locking and unlocking of the thread holder 5 will be described with reference to FIGS. FIG.
FIG. 5 shows a state shown in FIG. 5, in which the operating rod 16 is stopped in a state in which the operating rod 16 is advanced to the maximum by a stopper member 23 for removal. In this state, the distal end 14a of the stopper pin 14 is located at the straight portion 22a of the groove 22 on the lower surface of the operating rod 16. Then, the distal end portion 14a rotates about the downwardly directed base portion 14b as described below. At this time, as described above, the stopper pin 14
Is constantly attracted to the bottom side of the thread holder main body 6 by the magnet M, so that a stable turning operation can be obtained.

Next, when the operating portion 16 is pushed in by pushing the pushing portion 17, the tip portion 14a of the stopper pin 14 enters one of the forked portions 22b in front of the groove 22, as shown in FIG. . And here the pressing part 17
Is released, the operating rod 16 is pushed out again by the action of the coil spring 24. At this time, the distal end portion 14a of the stopper pin 14 enters and locks into the V-shaped groove 22c connecting the bifurcated portion 22b as shown in FIG. This state is the state shown in FIG.

When the yarn is used again, FIG.
As shown in FIG. 9, the pressing portion 17 is lightly pressed once. As a result, the tip portion 14a of the stopper pin 14 is
It exits from 2c and enters the opposite side of the forked portion 22b. This releases the lock. When the pressing of the pressing portion 17 is released, the operating rod 16 is pushed out by the action of the coil spring 24, and accordingly, the distal end portion 14a of the stopper pin 14 is again moved to the groove portion 22 as shown in FIG.
Return to the straight line portion 22a at.

If a plurality of the same spools as in the present embodiment described above are prepared and different yarns are set for each of them, it is possible to change a large number of threads at once just by changing the substrate 1. Can be.

Next, another thread retainer of the present invention shown in FIGS. 21 to 32 will be described.

Reference numeral 38 denotes a yarn holder. The thread retainer 38 is composed of a thread retainer body described later and a thread fixing operation rod.

Reference numeral 39 denotes a yarn holder main body. The thread retainer body 39 has a circular hole 40 penetrating the center and a screw 41 engraved on the outer periphery. Further, a spherical pressing body 43 is provided in a concave portion 42 provided on the tip end surface, and is pressed and urged by a coil spring 44. Further, the circular hole 40 is provided near the tip.
A lock pin 46 having a hemispherical tip is disposed in a hole 45 provided in a direction orthogonal to
It is urged toward the center of zero. Reference numeral 48 indicates the hole 4.
5 is a lid.

Reference numeral 49 denotes a thread fixing operation rod. The thread fixing operation rod 49 is fitted into the circular hole 40 of the thread retainer body 39 so as to be rotatable in the circumferential direction. A flange-shaped rotary knob 50 is formed at the tip, and a thread insertion hole 51 is provided at the center. Further, a concave portion 53 in which a washer 52 as a stopper for fitting is fitted in the rear end portion is provided in the circumferential direction.

As shown in FIGS. 29 and 30, an arc-shaped groove 54 into which the spherical pressing body 43 is fitted and slides is provided on the rear surface of the rotary knob 50. 5
4 are slightly deeper at both end portions 54a and 54b. The thread fixing operation rod 4 is provided with the groove 54 and the spherical pressing body 43.
9 is held.

As shown in FIGS. 28 and 29, a notch 55a is formed in the vicinity of the distal end, facing the lock pin 46, to reach the thread insertion hole 51 and to have a required angle on one side in the width direction. A notch 55 is provided. And the notch 5
5 is provided with a thread pressing piece 57 having a semicircular cross section that rotates in a direction perpendicular to the thread insertion hole 51 with a shaft 56 inserted at a position slightly above the thread insertion hole 51 toward the notch 55a as a fulcrum. Has been established. Reference numeral 58 denotes a shaft insertion hole provided in the thread fixing operation rod 49, and reference numeral 59 denotes a shaft insertion hole provided in the yarn pressing piece 57.

Reference numeral 60 denotes a screw 4 of the thread retainer main body 39.
1 is a cover body that is screwed into the cover member 1 and covers the rear end of the yarn holder 38.

Next, the operation of the present yarn holder will be described. FIGS. 22 and 23 show a state where the ends of the yarn are held. In this state, the thread pressing piece 57 in the notch 55
Rotates in a direction in which the thread 37 is pressed by the lock pin 46 pushed through the coil spring 47, and sandwiches the thread between the notch 55 and the bottom. This state is maintained by the spherical pressing body 43 being fitted into the deep portion 54b at one end of the groove 54.

When pulling out the yarn, the rotary knob 50 is pinched and turned in the circumferential direction until the spherical pressing body 43 is fitted into the deep portion 54a at the other end of the groove 54. Thereby, as shown in FIG. 24 and FIG.
The lock pin 9 rotates and hits the upper surface of the thread pressing piece 57
When the shaft 6 reaches the position of the shaft 56, the end of the thread pressing piece 57 is pushed out by the lock pin 46. Thereby, the thread pressing piece 57 rotates around the shaft 56 in a direction opposite to the pressed state of the thread. This unlocks the thread,
It can be pulled out freely. In order to hold the end of the thread again, the rotation knob 50 may be pinched and turned in the opposite direction.

[0034]

As described above, according to the present invention, a large number of thread spools are erected on a substrate, and a thread retainer is installed via a support plate installed substantially vertically above the thread spools. Therefore, many threads can be used at the same time, and a desired thread can be immediately pulled out and used while sitting. Further, the time required for the thread change can be significantly reduced, and the consumption of the operator's physical strength can be reduced. Further, by holding the ends of the yarns, it is possible to prevent the yarns from being separated due to wind or vibration of the sewing machine, and to prevent the yarns from being entangled with each other.

The thread retainer is composed of a thread retainer main body fixed to the support plate, a thread fixing operation rod attached to the thread retainer main body, and the like, and the thread fixing operation rod is pushed in or turned. When the thread is locked and released in this way, it is possible to smoothly hold and release the terminal of the thread with one touch, and the thread changing operation becomes smoother.

[Brief description of the drawings]

FIG. 1 is a front perspective view of the present invention.

FIG. 2 is a rear perspective view of the present invention.

FIG. 3 is a side view showing a state where the sewing machine is set on a sewing machine table.

FIG. 4 is a central longitudinal sectional side view of the thread retainer in a thread locked state.

FIG. 5 is a central longitudinal side view of the yarn holder in an unlocked state of the yarn.

FIG. 6 is a side view showing a partial cross section of the yarn holder.

FIG. 7 is a front view of the yarn holder.

FIG. 8 is a plan view of the yarn holder.

FIG. 9 is a side view of a thread fixing operation rod.

FIG. 10 is a front view of a thread fixing operation rod.

FIG. 11 is a plan view of a thread fixing operation rod.

FIG. 12 is a bottom view of a thread fixing operation rod.

FIG. 13 is a perspective view of a spring plate for pressing a thread.

FIG. 14 is a perspective view of a stopper pin.

FIG. 15 is a longitudinal sectional side view of a cover body.

FIG. 16 is an explanatory view of the operation of the thread retainer, showing a state in which the thread fixing operation rod has advanced.

FIG. 17 is an explanatory diagram of the operation of the thread retainer, showing a state in which a thread fixing operation rod is pushed in.

FIG. 18 is an explanatory view of the operation of the thread retainer, showing a state in which the thread fixing operation rod is locked when pushed in.

FIG. 19 is an explanatory diagram of the operation of the thread retainer, showing a state in which the lock is released.

FIG. 20 is an explanatory view of the operation of the thread retainer, showing a state in which the thread fixing operation rod advances again after the lock is released.

FIG. 21 is an exploded perspective view of a yarn holder according to another example of the present invention.

FIG. 22 is a central longitudinal sectional side view of the thread retainer in a thread locked state.

FIG. 23 is a sectional view taken along line AA in FIG. 22;

FIG. 24 is a central longitudinal sectional side view of the thread holder in a thread unlocked state.

FIG. 25 is a sectional view taken along line BB in FIG. 24;

FIG. 26 is a central longitudinal sectional side view of the thread retainer main body.

FIG. 27 is a rear view of the thread retainer main body.

FIG. 28 is a side view of a thread fixing operation rod.

FIG. 29 is a front view of a thread fixing operation rod.

30 is a sectional view taken along line CC in FIG. 28.

FIG. 31 is an enlarged front view of a thread pressing piece.

FIG. 32 is an enlarged plan view of a thread pressing piece.

[Explanation of symbols]

 DESCRIPTION OF REFERENCE NUMERALS 1 board 2 thread winding 3 support 4 support plate 5 thread retainer 6 thread retainer main body 9 notch 10 cylindrical part 12 square hole 14 stopper pin 15 thread fixing operation rod 16 operation rod main body 17 pressing part 18 thread insertion hole 19 notch Part 20 Spring plate 22 Groove part 22a Straight part of groove 22b Fork part of groove 22c V-shaped groove 24 Coil spring 37 Thread 38 Thread holder 39 Thread holder body 40 Circular hole 43 Spherical pressing body 46 Lock pin 49 Thread Fixed operating rod 50 Rotating knob 51 Thread insertion hole 54 Groove 55 Notch 56 Shaft 57 Thread pressing piece MC Sewing machine M Magnet

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[Procedure amendment]

[Submission date] February 21, 2000 (200.2.2
1)

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] Claims

[Correction method] Change

[Correction contents]

[Claims]

[Procedure amendment 2]

[Document name to be amended] Statement

[Correction target item name] 0004

[Correction method] Change

[Correction contents]

[0004]

SUMMARY OF THE INVENTION A thread retainer according to the present invention comprises a thread retainer body penetrating a square hole and a thread fixing operation for fixing the thread while slidably fitting the thread into the square hole. The thread fixing operation rod includes a thread insertion hole for inserting a thread in the sliding direction thereof, and a spring plate for pressing and fixing the thread inserted in the thread insertion hole. The thread retainer body is
A notch portion that forms an oblique notch on which the spring plate rides so as to release the fixing of the thread when the thread fixing operation rod inserted into the square hole advances in one direction, and the thread fixing operation rod is An elastic means such as a coil spring for urging in the advance direction is provided, and a stopper pin is engaged with a groove for retaining the operation fixing rod of the thread in a retracted position by a retracting operation. In this yarn holder, the elastic member and the stopper pin fitted into the groove can hold the yarn fixing operation rod at the advance / retreat position in accordance with the advance / retreat adjustment, respectively. The thread can be fixed and released in accordance with the forward and backward positions of the fixing operation rod.

[Procedure amendment 3]

[Document name to be amended] Statement

[Correction target item name] 0005

[Correction method] Change

[Correction contents]

[0005] A yarn retainer according to the present invention comprises a yarn retainer main body having a circular hole formed therein, and a yarn fixing operation rod for fixing the yarn while rotatably fitting the circular hole in the circular hole. The fixing operation rod for the thread is provided with a turning knob for turning the thread, a thread insertion hole for inserting a thread in the direction of the center line of rotation, and a thread passing through the thread inserting hole. A thread pressing piece which is eccentric from a rotation center line and is pivotally supported so as to be capable of oscillating to press and fix the thread.The thread retainer main body has a thread fixing operation rod fitted into the circular hole. An elastic pressing means is provided for pressing the thread pressing piece so as to swing when rotated. This thread holder operates in the same manner as described above by a rotating operation. That is, the turning knob rotates the fixing operation rod of the thread, and the thread pressing piece and the elastic pressing means can fix and release the thread according to the turning position of the fixing operation rod of the thread. .

[Procedure amendment 4]

[Document name to be amended] Statement

[Correction target item name] 0006

[Correction method] Change

[Correction contents]

[0006] In the thread spool with a thread retainer of the present invention, a thread spool is erected on a substrate having a predetermined area, a support plate is provided by a support formed on the substrate, and the thread is wound on the support plate. Is installed.

Claims (3)

[Claims] 1. A thread holding device which stands on a substrate having a predetermined area, and a support plate is provided by a support formed on the substrate, and a yarn holding device holds the yarn of the spool on the support plate. A thread spool with a thread holder with a vessel installed. 2. A cylindrical portion having an elastic means at the front, a notch at the rear, and a hole at the center, and a stopper pin is rotatable in a small hole at the bottom of the hole. And a thread retainer body slidably fitted into a hole of the thread retainer body, forming a pressing portion at the tip, providing a notch at the rear, and penetrating the thread insertion hole at the center. A fixing operation of a thread comprising an operating rod provided, a spring plate for pressing the thread in the notch, and a groove in which a tip end of the stopper pin is slidably fitted on a bottom surface of the operating rod. A thread holder consisting of a rod. 3. A thread retainer main body having a circular hole passing through a center portion thereof, and a resilient pressing means for pressing a thread pressing piece provided on a thread fixing operation rod near a tip end; , Which is rotatably fitted in the circular hole in the circumferential direction, forms a rotary knob at the tip, penetrates the thread insertion hole at the center, and further has a notch near the tip to reach the thread insertion hole. And a thread fixing operation rod which supports a thread pressing piece so as to rotate in a direction perpendicular to the thread insertion hole in the cutout portion.