JP2000308782A - Bobbin exchange apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable a bobbin case to be exchanged by maintaining the bobbin case even if a lever and a regulating member incline each other owing to a play in the rotary direction of the bobbin case. SOLUTION: This bobbin exchange apparatus comprises a lever 202 which is mounted on a bobbin case 200 so as to be able to raise, a bobbin finger piece which is provided with regulating members 56, 58 forming the almost same space y as the width x of the lever and maintains the bobbin case by making the lever to be raised and then guiding it to a gap, a carrier part for carrying the bobbin finger piece. In this case, on at least either a part of the control members 56 and 58 facing to the bobbin case or the end of the lever, tapers 208 and 210 are formed, thereby the lever can be smoothly led into the gap of the regulating members 56, 58.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bobbin changing device.

[0002]

2. Description of the Related Art An automatic bobbin thread supplying apparatus for automatically supplying a bobbin thread to a bobbin has been conventionally known. A residual yarn removing device that removes residual yarn remaining on the bobbin in the removed bobbin case,
A bobbin winding device for newly winding a bobbin thread on a bobbin, a thread hooking mechanism for hooking one end of the wound bobbin on a bobbin case, and a thread cutter for cutting a bobbin thread from the threaded bobbin to a bobbin supply source It has a mechanism.

FIG. 10 is a front view schematically showing such an automatic lower thread feeding device, FIG. 11 is a perspective view of a bobbin case, FIG. 12 is a side view of FIG. 10, and FIG. It is a partial section side view. Note that FIG.
FIG. 2 is a diagram viewed from an X direction of FIG.

In these figures, a sewing machine head (not shown) having a sewing machine needle 2 is installed on a sewing machine bed 4, and a shuttle 6 is provided just below the sewing machine bed 4 and on the movement locus of the sewing machine needle 2 up and down. Is provided. The bobbin thread automatic supply device 8 includes a rotating arm 12 configured to be rotatable together with the support shaft 10 by a driving unit (conveying unit) (not shown) and to be able to linearly move along the axial direction of the support shaft 10. The arm 12 has a chuck (gripping means or bobbin holding unit) 16 for gripping the bobbin case 14.

A bobbin in which the lower thread is set and a dummy position 20 for accommodating the bobbin case 14B are provided on the rotation locus 18 of the chuck 16, and a residual thread removing device for removing the remaining lower thread of the bobbin by the residual thread removing device. Each work position is provided at a position 22 and a bobbin winding position 24 where the bobbin is wound around the bobbin. A holding shaft 26 for holding the bobbin case 14A is provided on the middle hook 7 of the hook 6, and holding shafts 28 and 30 having the same shape as the holding shaft 26 are provided at the dummy position 20 and the remaining yarn removing position 22. ing. In addition, bobbin winding position 2
4 is provided with a bobbin rotating means 32 for rotating the bobbin accommodated in the bobbin case 14D. In addition,
In FIG. 12, the bobbin case 1 at each of the dummy position 20, the remaining yarn removing position 22, and the lower yarn winding position 24 is shown.
The bobbin rotating means 32 at 4B, 14C, 14D and the bobbin winding position 24 are not shown.

A remaining yarn removing device (not shown) is arranged at the remaining yarn removing position 22, and a lower yarn winding device, a yarn hooking mechanism, and a thread cutting mechanism (not shown) are also arranged at the lower yarn winding position 24. .

As shown in FIGS. 11 and 13, the bobbin case 14 has an open end 34 having an open end (a lower end in FIG. 13), an end wall 36 formed at the other end, and these open end 34 and end wall 36. It has a substantially closed cylindrical shape having a peripheral wall 38 therebetween, and a shaft 42 for fitting a bobbin 40 therein is provided therein. A lower thread tension adjusting spring 44 and a lower thread lead-out section 46 are provided on the peripheral wall 38. Inside the shaft 42, a fitting hole 48 for fitting with the holding shaft 26 of the middle hook 7 of the hook 6 is formed. Further, the bobbin case 14 is provided with a latch 50 and a lever 52 for attaching and detaching the bobbin 7 and the bobbin 40. As shown in FIGS. 11 and 13, when the lever 52 is closed, the latch 50 is engaged with a fitting portion (not shown) of the inner hook 7 so as to be integrally engaged with the inner hook 7. On the other hand, when the lever 52 is opened upward in FIG. 13, the latch 50 moves rightward in FIG. 13, so that the latch 50 is disengaged from the fitting portion of the intermediate hook 7 and is fitted to the end wall of the bobbin 40. The bobbin case 14 is detached from the inner hook 7 and integrally engages with the bobbin 40.

In the bobbin thread automatic supply device for supplying the bobbin thread in the bobbin 40 in the bobbin case 14 having such a structure, the bobbin case 1 mounted in the shuttle 6 of the sewing machine is used.
When the bobbin thread wound on the bobbin in 4A is consumed and becomes less than a predetermined winding amount, the sewing machine is stopped, the bobbin case 14A is taken out of the shuttle 6 by the chuck 16, and the bobbin on which the thread is already wound is removed. Another bobbin case 1 with
4B is removed from the holding shaft 28 at the dummy position 20 and the shuttle 6
The sewing machine is mounted on the holding shaft 26 inside, and the sewing operation starts again. During this restarted sewing operation, the yarn remaining on the bobbin in the bobbin case taken out earlier is removed by the remaining yarn removing device at the remaining yarn removing position 22, and thereafter, by the yarn winding device at the lower yarn winding position 24. A predetermined amount of yarn is wound around a bobbin. When a predetermined amount of yarn is wound,
The thread end is inserted under the lower thread tension adjusting spring 44 of the bobbin case 14D by the thread hooking mechanism and guided to the lower thread lead-out section 46. Cut by the cutting mechanism. When cutting is completed,
The bobbin case 14 is mounted on the holding shaft 28 at the dummy position 20. When the bobbin thread of the sewing machine is consumed during the sewing operation, the bobbin case 14 is replaced again. The determination as to whether or not the bobbin thread wound on the bobbin in the bobbin case 14A mounted in the shuttle 6 has been consumed and has reached a predetermined winding amount or less is automatically made by means for counting the number of stitches of the sewing machine or the like. .

FIG. 14 is a perspective view of a chuck 16 used in the lower thread automatic feeding device, FIG. 15 is a plan view for explaining a state in which the chuck grips the bobbin case 14, and FIG. 16 is a side view of FIG. It is. In these figures, the chuck 16 is provided with two plates (regulating members) 56 and 58 arranged at an interval y substantially the same as the width x of the lever 52 of the bobbin case 14 (see FIG. 11), and the nail shaft 60. It has a nail 62 rotatable around it, and when the piston 64 is operated and its rod 66 is extended, the tip of the nail 62 rotates so as to enter the space between the plates 56 and 58. As a result, the tip of the nail 62 is
The lever 52 is rotated while being opened, and the tip of the lever 52 is connected to a block 68 provided between the plates 56 and 58.
Is sandwiched between the leaf spring 70 attached to the base and the tip of the nail 62.

The two plates 56 and 58 are components for determining the position and orientation of the bobbin case 14. In particular, the distance y between the two plates 56 and 58 determines the vertical position of the bobbin case 14. Lever 5 of case 14
2 (see FIG. 11) so that the lever 52 can be positioned and fitted between the plates 56 and 58.

As is clear from the above, when the bobbin case 14 is gripped by the chuck 16, the lever 52 of the bobbin case 14 and the two plates 56, 58 are configured to be parallel to each other. .

[0012]

However, in the shuttle 6 of the sewing machine, the backlash (play) of the inner hook 7 fixed to the sewing machine bed 4 with respect to the sewing machine bed 4 and the play of the bobbin case 14 with respect to the inner hook 7 are included. Usually, the bobbin case 14 incorporated in the shuttle 6 has a play of about 3 to 5 degrees in the rotation direction. The inner hook 7 is fixed to the sewing machine bed 4 at the time of factory shipment.
May be readjusted in the rotation direction with respect to the sewing machine bed 4.

Due to the play and the readjustment of the inner shuttle 7, the lever 52 of the bobbin case 14, which should be parallel to the plates 56, 58 of the chuck 16, is inclined. 14 may not be able to be gripped. FIGS. 17A and 17B are diagrams for explaining the cause of such poor grip due to play in the rotation direction of the bobbin case 14. FIGS.
(B) shows a case where the lever 52 and the lever 52 are parallel to each other;
Indicates a case where the plates 56 and 58 and the lever 52 are relatively inclined.

In these figures, the lever 52 has a substantially rectangular shape and can be opened and closed with its fulcrum 54 as a center. The bobbin is locked by standing up (opening) and the plate 5
Fitting between 6, 58 is as described above. At this time, the upper long side 52a of the lever 52 is positioned by contacting the plate 56, and the lower long side 52b is positioned by contacting the plate 58.

In FIG. 17A, the plates 56, 5
Since the length directions of the lever 8 and the lever 52 are parallel to each other, the lever 52 of the bobbin case 14 can be fitted between the plates 56 and 58. As a result of this fitting, the bobbin case 14 can be positioned. Can be.

However, as shown in FIG.
Due to the above play, if the inclination of the bobbin case 14 with respect to the plates 56 and 58 is large, the tip 53 of the lever 52
The corner 53 a on the long side 52 a side is the end face 5 of the plate 56.
6a (see also FIG. 14), so that the lever 52 cannot be opened by the nail 62 of the chuck 16, resulting in poor grip. The play of the bobbin case 14 is shown in FIG.
In the case of the direction opposite to the rotation direction of (B), the corner 53 b on the long side 52 b side of the tip 53 of the lever 52 is
8 comes into contact with the end face 58 a (see also FIG. 14), resulting in poor grip.

In order to prevent such poor gripping, when the width x of the lever 52 of the bobbin case 14 is reduced or when the interval y between the plates 56 and 58 is increased, the bobbin case 14 can be gripped. The vertical position cannot be determined.

Accordingly, an object of the present invention is to replace the bobbin by gripping the bobbin case 14 even if the lever 52 and the plates 56 and 58 are inclined with respect to each other due to the play in the rotating direction of the bobbin case 14 as described above. It is to provide a device.

[0019]

According to the present invention, in order to achieve the above object, a lever provided on a bobbin case so as to be able to stand up and a regulating member having a gap substantially equal in width to the lever are formed. A bobbin exchange device comprising: a bobbin holding portion that raises the lever to guide the bobbin case to the gap and holds the bobbin case; and a transport portion that transports the bobbin holding portion, a portion of the regulating member facing the bobbin case. Alternatively, there is provided a bobbin exchanging device characterized in that at least one of the tip ends of the lever is provided with a taper to smoothly introduce the lever into the gap between the regulating members.

The taper is provided, for example, on the lever so that the width at the tip end side of the lever is narrow, or is provided on the regulating member such that the gap on the side of the regulating member near the lever is wide. ing.

Further, according to the present invention, there is provided a lever provided on the bobbin case so as to be able to stand up, and a regulating member having a gap formed at substantially the same interval as the width of the lever. And a bobbin holding device that holds a guiding bobbin case, and a transport unit that transports the bobbin holding unit, in a bobbin exchanging device, at least one of a portion of the regulating member facing a lever or a lever tip portion is provided with roundness, A bobbin exchanging device is provided, wherein the introduction of the lever between the regulating members is smooth.

The roundness is provided, for example, at a corner of the tip of the lever, or is provided on the regulating member such that the gap near the lever of the regulating member is widened.

The regulating member has, for example, two regulating plates which are arranged in parallel with the same width as the lever and form the gap.

[0024]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a front view of an automatic lower thread feeding device having a bobbin changing device according to the present embodiment, and FIG. 2 is a side view of the same. In these drawings, components denoted by the same reference numerals as those shown in FIGS. 10 and 12 are parts or elements equivalent or similar to those in the conventional example, and detailed description thereof is omitted.

Rotating arm 12 of automatic lower thread supply device 102
Is configured to be rotatable together with the support shaft 10 by the rotation means 104 and to be able to linearly move along the axial direction of the support shaft 10 by the linear motion means (conveying unit) 106. Rotating means 10
4 includes a motor 108 and a belt 110 rotated by the motor 108, and rotates a pulley 112 fixed to the support shaft 10. The rotating arm 12 is fixed to an arm mounting member 113 and is mounted on the support shaft 10 by the arm mounting member 113. The arm mounting member is movable with respect to the support shaft 10 in the axial direction and in the rotational direction. Is fixed, so that when the pulley 112 rotates, the rotating arm 12 also rotates.

The rotating arm 12 is further configured to be able to move linearly along the axial direction of the support shaft 10 by means of a linear moving means 106. The linear motion means 106 includes a motor 114 and the motor 11
4 is provided with a belt 116 rotated. The arm mounting member 113 is fixed to the belt 116, so that the motor 114 moves the rotating arm 12 in the axial direction of the support shaft 10 via the belt 116 and the arm mounting member 113.

Since the rotating arm 12 is provided with a chuck (bobbin holding portion) 16, when the rotating arm 12 is rotated or linearly moved by the rotating means 104 and the linear moving means 106, the chuck is moved together with the rotating arm 12. 16 also rotates or linearly moves.

FIG. 3 is a plan view showing a bobbin case 200 which is a characteristic part of the first embodiment of the bobbin changing device of the present invention. 3A and 3B, the plates 56 and 58 of the chuck 16 and the lever 202 of the bobbin case 200 are shown.
(A) shows the case where the plates 56, 58 and the lever 202 are parallel to each other, and (B)
Indicates a case where the plates 56 and 58 and the lever 202 are relatively inclined. In this embodiment, the bobbin case 20 is used.
The shape of the 0 lever 202 is different from the conventional example. The bobbin case 200 has a substantially rectangular lever 202. The lever 202 has upper and lower long sides 202a and 202b. The lever 202 is configured to be rotatable in a direction perpendicular to the paper surface (left and right directions in FIGS. 15 and 5) with the left end of the drawing as a fulcrum 204, and by raising (opening) a tip end 206 thereof, Is unlocked and locked with the bobbin, and the tip 206 is returned (closed) to its original position, thereby being locked with the shuttle and unlocking with the bobbin.

Both long sides 202a, 202 of the lever 202
The taper 208 and 210 are formed in b so that the width | variety of the front-end | tip part 206 side of the lever 202 may become narrow, respectively. In the portion where the tapers 208 and 210 are not formed, the width x of the lever 202 is substantially the same as the width y of the plates (regulation members) 56 and 58 of the chuck 16.

As shown in FIG. 3B, the bobbin case 200 of the present embodiment has
0, the plate 56 of the chuck 16,
Even if it is inclined with respect to 58, it does not contact the end faces 56a, 58a of the plates 56, 58. Therefore, the chuck 16
With this, the lever 202 can be opened and can be gripped.

The functions of the tapers 208 and 210 are as described above. Therefore, the shape and size of the tapers 208 and 210 are determined according to the degree of adjustment of the inner hook in the sewing machine to which the bobbin exchanging apparatus of the present invention is applied, the hook and the bobbin. It is determined in consideration of the degree of play of the case 200 and the like.

FIG. 4 is a plan view showing a bobbin case 300 which is a characteristic part of the second embodiment of the bobbin changing device according to the present invention.
2 shows a case where the two are parallel to each other, and (B) shows a case where the plates 56 and 58 and the lever 302 are relatively inclined.

The lever 302 of the bobbin case 300 of the present embodiment has two corners 306 at the tip 306 side.
R (roundness) is formed in a and 306b. This second
In the case of the second embodiment, unlike the case of the first embodiment, as shown in FIG.
When it is inclined with respect to 58, contact with the end surface 56 a of the plate 56 may not be avoided near the upper end of the corner 306 a. However, even in this case, according to the present embodiment, as described below, the lever 302 can be opened by the chuck 16 and can be gripped.

That is, R is provided at both corners of the end portion 306 of the lever 302 of the present embodiment, and the end portion 306 of the bobbin case 300 is slightly curved upward as shown in FIG. Therefore, when the chuck 16 approaches the bobbin case 300, the tip 306 is slightly inserted between the plates 56 and 58. Alternatively, the tip portion 306 of the lever 302 can be slightly inserted between the plates 56 and 58 by the nail 62 of the chuck 16. Thus, the tip 3 of the lever 302 is located between the plates 56 and 58.
If a small amount of 06 can be inserted, there is play in the rotating direction of the shuttle and the bobbin case 300 described above. 5 can be moved to the position indicated by the alternate long and short dash line. As described above, according to the present embodiment, the lever 302 can be opened by the chuck 16 and the bobbin case 300 can be gripped.

As is apparent from the above description, this R
Can effectively prevent poor gripping of the bobbin case 202 in consideration of the degree of adjustment of the inner hook in the sewing machine to which the bobbin exchanging device of the present invention is applied and the degree of play of the hook and the bobbin case 200. Be large enough to be able to In the conventional bobbin case 14 as well, FIG.
Although small r was formed as shown in FIG. 7, it was not large enough to fulfill the function of preventing the above-described gripping failure by the chuck 16.

FIG. 6 is a perspective view showing a chuck 216 which is a characteristic part of the third embodiment of the bobbin changing device of the present invention. FIG. 7 is a plan view for explaining a state where the chuck grips the bobbin case 14. FIG. 8 and FIG. 8 are side views of FIG.

The chuck 216 of the bobbin changing apparatus has two plates 256 and 258 arranged in parallel with each other. The two plates 256 and 258 are provided with the inner surfaces 256b and 258b facing each other and the bobbin case 14, respectively. It has end faces 256a and 258a on the opposite side. In the present embodiment, the inner surfaces 25 of the plates 256, 258
6b and 258b are tapered to extend to the side facing the bobbin case 14 along the end surfaces 256a and 258a.
0a and 260b are formed. This taper 260
a and 260b are inclined so that the interval (y) between the plates 256 and 258 becomes wider on the side closer to the bobbin case 14.

The chuck 216 according to the present embodiment is configured as described above. Since the distance y between the plates 256 and 258 is increased on the side close to the bobbin case 14, the lever 52 is moved to the plate 256 and 258. Even if it is inclined with respect to 258, it does not contact the end plates 256a and 258a of the plates 256 and 258. Therefore, the lever 52 can be opened by the nail 62 and the bobbin case 14 can be gripped. Further, as the lever 52 of the bobbin case 14 is opened, the distance between the plates 256 and 258 becomes narrower and becomes y.
6b and 258b can be positioned vertically.

FIG. 9 is a side view showing a chuck 316 which is a characteristic part of the fourth embodiment of the bobbin changing device of the present invention. The chuck 316 of this embodiment is obtained by forming R (roundness) 360a, 360b instead of the taper 260a, 260b of the chuck 216 of the third embodiment. That is, the inner surface 356 of the plates 356, 358
b, 358b, R360a extending elongated along the end faces 356a, 358a to the side facing the bobbin case 14,
360b is formed. This R360a, 360b
Thereby, the interval (y) between the plates 356 and 358 is increased on the side close to the bobbin case 14.

As described above, the chuck 316 of the present embodiment is different from the taper 260a, 260 of the third embodiment.
Since the third embodiment is the same as the third embodiment except that b is replaced with 360a and 360b, the description is omitted. The effects of the present embodiment are the same as those of the third embodiment. That is, since the chuck 316 of the present embodiment is configured as described above, the distance y between the plates 356 and 358 becomes larger on the side closer to the bobbin case 14, so that the bobbin case 14 can be gripped. The bobbin case 14
When the lever 52 is opened to some extent, the plates 356, 35
8, the distance between the lever 52 and the inner surface 356 is reduced.
b, 358b can be positioned in the vertical direction. Further, in the present invention, the taper or the roundness is formed on either the lever or the regulating member, but, for example, the first or second embodiment is replaced with the third or fourth embodiment. If they are combined, the degree of each taper or roundness can be reduced. In addition, it goes without saying that various changes can be made without departing from the spirit of the present invention.

[0042]

According to the present invention, there is provided a lever provided on the bobbin case so as to be able to stand up, and a regulating member having a gap formed at substantially the same interval as the width of the lever. And a bobbin holding unit that holds the guiding bobbin case, and a transport unit that transports the bobbin holding unit, in a bobbin exchange device, wherein at least one of a portion of the regulating member facing the bobbin case or a tip of a lever has a taper. Since the provision of the lever into the gap between the regulating members is made smooth, even if the bobbin case lever and the regulating member are inclined with respect to each other due to the play in the rotation direction of the bobbin case, the bobbin case can be gripped and replaced. .

Further, according to the present invention, there is provided a lever provided on the bobbin case so as to be able to stand up, and a regulating member having a gap formed at substantially the same interval as the width of the lever. And a bobbin holding device that holds a guiding bobbin case, and a transport unit that transports the bobbin holding unit, in a bobbin exchanging device, at least one of a portion of the regulating member facing a lever or a lever tip portion is provided with roundness, Since the introduction of the lever between the regulating members is smooth, the bobbin case can be exchanged by gripping the bobbin case even if the lever and the regulating member of the bobbin case are inclined to each other due to the play in the rotating direction of the bobbin case.

[Brief description of the drawings]

FIG. 1 is a front view of an automatic lower thread supply device having a bobbin exchange device according to the present embodiment.

FIG. 2 is a side view of the apparatus of FIG.

FIG. 3 is a plan view showing a bobbin case which is a characteristic part of the first embodiment of the bobbin changing device of the present invention;
(A) shows a case where the plate and the lever are parallel to each other, and (B) shows a case where the plate and the lever are relatively inclined.

FIG. 4 is a plan view showing a bobbin case which is a characteristic part of the second embodiment of the bobbin changing device of the present invention;
(A) shows a case where the plate and the lever are parallel to each other, and (B) shows a case where the plate and the lever are relatively inclined.

FIG. 5 is a plan view of a chuck for explaining the operation of the second embodiment of the bobbin changing device of the present invention.

FIG. 6 is a perspective view showing a chuck which is a characteristic part of the third embodiment of the bobbin changing device of the present invention.

FIG. 7 is a plan view for explaining a state in which the chuck of the third embodiment of the bobbin changing device of the present invention grips the bobbin case.

FIG. 8 is a side view of a chuck according to a third embodiment of the bobbin changing device of the present invention.

FIG. 9 is a side view showing a chuck which is a characteristic part of the fourth embodiment of the bobbin changing device of the present invention.

FIG. 10 is a front view schematically showing a lower thread automatic supply device according to a conventional example.

FIG. 11 is a perspective view of a bobbin case.

FIG. 12 is a side view of the device of FIG.

13 is a partial cross-sectional side view of the bobbin case and the shuttle; FIG. 13A is a bobbin case viewed from the X direction in FIG. 11;
(B) shows a shuttle.

FIG. 14 is a perspective view of a chuck used in a conventional lower thread automatic supply device.

FIG. 15 is a plan view of the chuck of FIG. 14;

FIG. 16 is a side view of the chuck of FIG.

17A and 17B are diagrams for explaining a cause of gripping failure due to backlash in the rotation direction of the bobbin case, wherein FIG. 17A shows a case where the plate and the lever are parallel to each other, and FIG. Shows a case where is relatively inclined.

[Explanation of symbols]

2 sewing needle 4 sewing machine bed
6 Hook 7 Middle hook 8 Bobbin automatic feeder
10 support shaft 12 rotating arm 14, 14A, 14B, 14C,
14D bobbin case 16 chuck (bobbin holding part)
18 Rotation locus 20 Dummy position 22 Residual yarn removal position
24 Lower thread winding position 26 Holding shaft 28 Holding shaft
32 bobbin rotating means 34 open end 36 end wall
38 peripheral wall 40 bobbin 42 axis
44 Lower thread tension adjusting spring 46 Lower thread lead-out section 48 Fitting hole
50 Latch 52 Lever 52a, 52b Long side
53 Tip part 53a, 53b Corner part 54 Support point 56, 58 Plate (restriction member)
56a, 58a End face 60 Nail shaft 62 Nail
64 piston 66 rod 68 block
70 leaf spring 102 bobbin thread automatic feeder 1
04 Rotating means 106 Linear moving means (transport unit) 1
08 Motor 110 Belt 112 Pulley 1
13 Arm mounting member 114 Motor 116 Belt 2
00 bobbin case 202 lever 202a, 202b long side 204 fulcrum 206 tip 2
08,210 Taper 216 Chuck 256,258 Plate 2
56a, 258a End surface 256b, 258b Inner surface 260a, 260b Taper 300 Bobbin case 302 Lever 3
06 Tip 306a, 306b Corner 3
16 Chuck 356, 358 Plate 3
56a, 358a End surface 356b, 358b Inner surface

Continuation of the front page (72) Inventor Ken Matsuyama 8-term, Kokuryo-cho, Chofu-shi, Tokyo 1 Fuku term in Juke Corporation (reference) 3B150 CE02 CE27 DG14 FB02 JA03 JA33 JA34

Claims (7)

[Claims] A lever provided in the bobbin case so as to be able to stand up; and a regulating member having a gap formed with a gap substantially equal to the width of the lever, the lever being erected and guided into the gap to hold the bobbin case. A bobbin holding device that includes a bobbin holding unit that transfers the bobbin holding unit, and a taper is provided in at least one of a portion of the regulating member that faces the bobbin case and a tip of a lever, and a gap between the regulating member is provided. A bobbin changing device characterized by smooth introduction of a lever into a bobbin. 2. The bobbin exchanging device according to claim 1, wherein said taper is provided on said lever such that a width of said lever on a tip end side thereof is reduced. 3. The bobbin changing device according to claim 1, wherein said taper is provided on said regulating member such that said gap on the side of said regulating member near the lever is widened. 4. A bobbin case having a lever provided so as to be able to stand up, and a regulating member having a gap formed at substantially the same interval as the width of the lever, the lever being erected to be guided into the gap and holding the bobbin case. A bobbin exchange device comprising: a bobbin holding section; and a transport section that transports the bobbin holding section. A bobbin changing device characterized by smooth introduction of a bobbin. 5. The bobbin exchanging device according to claim 4, wherein said roundness is provided at a corner of a tip portion of said lever. 6. The bobbin exchanging device according to claim 4, wherein said taper is provided on said regulating member such that said gap on the side of said regulating member near the lever is widened. 7. The control member according to claim 1, wherein said restricting member has two restricting plates which are arranged in parallel at substantially the same width as said lever and form said gap. The bobbin exchange device according to any one of the above items.