KR20030010877A - Method and apparatus for whipping a thread around a shank of a button - Google Patents

Abstract

PURPOSE: A method and apparatus for hemming a button shank portion is provided to prevent the disentanglement of a hemming thread since the hemming thread is tied as an elliptical portion is caught in the shank portion. CONSTITUTION: A hemming thread is taken up to a shank portion of a button by at least one revolution, with the hemming thread being supported in an elliptical shape from the shank portion of the button. Then, the hemming thread portion of the elliptical shape is caught in the shank portion. Finally, when the hemming thread is pulled, a firm knot is formed on the hemming thread. The hemming apparatus to which the method is adapted, includes; a base; a unit arranged on the base for supporting a bobbin(210); a unit for holding a button; a unit(400) for hemming the thread to a shank portion of the button held by the button holding unit; a unit(500) for driving the hemming unit(400) and the bobbin(210).

Description

Method and apparatus for concealing button shank part {METHOD AND APPARATUS FOR WHIPPING A THREAD AROUND A SHANK OF A BUTTON}

The present invention relates to a device and a method for concealing a button shank portion, and more particularly, to an apparatus and a method for concealing a thread on a rear surface of a button to maintain a gap between a button and a garment.

In order to easily fit a button attached to a garment such as a suit or a Y-shirt in a buttonhole, a minute gap must be provided between the button and the garment. To this end, it is arranged to form a knot with a thread on the back of the button which is previously opposed to the garment, i.e. concealed.

When attaching a button having such a shank portion to a garment, many requirements arise, for example, to meet what cannot be met by the mechanical methods used so far or caused by another problem. Thus, the button shank portion must be relatively rigid, but must have some flexibility to allow the button to fit easily into the button hole without sagging. In addition, the buttons sewn mechanically should not fall off by sewing thread and bobbin thread. Finally, the abrasion action generated by the button shank in the button hole must also be minimized.

Shank portion hiding methods that must meet these requirements have conventionally relyed mostly on hand. That is, conventionally, the thread generally used in the shank portion of the button is manually wound and knots are formed one by one so as not to loosen. However, the conventional method which relies on such manual operation is naturally troublesome and takes a lot of time.

Thus, in order to solve the above problems, a lot of research and development has been made, and in recent years, special yarns which do not need to form a knot have been developed. The special yarn is a rubber yarn made of an elastomeric plastic material. When the rubber yarn is used, the wound rubber yarn is not released even without forming a knot due to the adhesiveness of the material itself. However, although the rubber company has the above advantages, the rubber material of the special material has a fundamental disadvantage that the price is higher than the general yarn. As a result, research is being actively conducted on devices that automatically hide while forming knots by using inexpensive general yarns instead of rubber yarns, and several patents and utility models for such devices have been applied. .

By the way, the method of concealing the thread in the shank portion with the conventional immersion device is the same regardless of which device, using the conventional immersion method is shown in detail in FIG. It is.

As shown in FIG. 1, the button 1 is attached to the garment 2 as a fixing chamber 3, in which a general threading chamber 4 is placed around the fixing chamber 3, ie once at the shank portion of the button. It is hidden in a twisted state. Therefore, the knot 5 is naturally formed each time the winding chamber 4 is twisted and rotates once.

However, in the conventional method, the knot 5 is formed while the bobbin chamber 4 is twisted every one rotation, but the knot 5 is simply crossed up and down rather than being firmly woven together. . For this reason, when the pull-out chamber 4 is pulled from one side, there is a problem that the phenomenon of the chamber 4 is often released because there is no woven portion.

The present invention has been made to solve the problems of the conventional method of immersion described above, so that the immersion chamber is firmly knotted in the shank portion, it is possible to fundamentally prevent the releasing of the chamber before the chamber is cut. An object of the present invention is to provide a method of concealing a button shank portion.

Another object of the present invention is to provide an apparatus for automatically concealing a chamber to the shank unit according to the method of the book of the present invention.

1 is an exemplary view for explaining a conventional method of hiding.

2 to 5 are perspective views sequentially showing the method of hiding according to the present invention.

Figure 6 is a perspective view showing a top of the reduction device to which the reduction method according to the present invention is applied.

7 is a front view of the reduction device according to the present invention.

Figure 8 is an exploded perspective view of the button mounting means which is the main part of the present invention.

9 is an enlarged perspective view of the winding drum which is an essential part of the present invention;

10 is a left side view of the decoupling device according to the present invention;

11 is a front view of a cam which is an essential part of the present invention.

12 to 16 are operation explanatory diagrams sequentially showing an operation of winding the reduction chamber to the button shank portion with the reduction apparatus according to the present invention.

-Explanation of symbols for the main parts of the drawing-

10; Button 11; Shank part

20; Hidden room 100; Base

200; Bobbin support means 210; Bobbin

300; Button mounting means 310; Hinge bracket

320; Button holder 323; Home

330; Actuating pin 340; First return spring

350; Limit switch 400; Concealment

410; Reduction 411; Withdrawal ball

420; Hidden drum 421; Bob room guide

430; Hooking means 433; Hooker

434; Second return spring 450; Knot forming means

460; Cam 461; Recess

470; Knot formation axis 471; Jam

472; Locking jaw 480; Redirection mechanism

482; Rack 483; roller

484; Pinion 485; 3rd return spring

500; Drive means 510; driving axle

520; Power transmission mechanism 530; motor

540; Handwheel 600; Control means

610; cylinder

In order to achieve the object of the present invention described above, the immersion method according to the present invention consists of the following steps. In a state where the chamber is supported in an elliptical shape from the shank portion of the button, the chamber is wound at least one rotation on the shank portion of the button. Then, the elliptical chamber part is hung on the shank part. Finally, pulling out the chamber, a solid knot is formed in the chamber.

The reduction device to which the reduction method is applied includes a base, a bobbin support means disposed on the base to support the bobbin, a button mounting means for mounting a button, and a shank portion of a button mounted to a button placement means. And means for actuating the means for concealing the chamber, and means for actuating the means for bobbin support. On the other hand, it is preferable to further include means for artificially controlling the recovery of the chamber simple winding process, which is performed between the steps of hanging the elliptical chamber of the chamber.

The detailed description of each component is as follows. First to fourth upper vertical walls are installed on the upper surface of the base. The lower surface of the base is provided with first to third lower vertical walls. Bobbin shafts of the bobbin support means are rotatably mounted to the first and second upper vertical walls. The bobbin shaft is inserted into the bobbin shaft and rotates together with the bobbin shaft.

The button mounting means includes a hinge bracket disposed on the outer side of the fourth upper vertical wall and fixed on the base. A button holder having a V-shaped mounting groove on the hinge bracket is rotatably connected at a predetermined acute angle. The bottom of the button holder is exposed to the bottom of the base, and the return spring supported on the third lower vertical wall is connected to the bottom of the exposed button holder. In addition, a limit switch is provided on the opposite side of the return spring so that the lower end of the button holder rotates while tensioning the return spring and contacts the limit switch, thereby actuating the drive means.

The reduction means comprise a reduction shaft rotatably mounted to the third to fourth upper vertical walls. In the reduction shaft, a drawing hole through which the reduction chamber wound around the bobbin is drawn out is formed. A reduction drum is mounted on the reduction shaft projecting to the outer surface of the fourth upper vertical wall, and rotates together with the reduction shaft. The chamber chamber guide is formed on the outer circumferential surface of the chamber drum. Guide grooves are formed in the chamber chamber guide along the circumferential direction, a guide end is formed at the tip of the chamber chamber guide, and guide holes are formed at the guide end. Therefore, the decay chamber drawn out through the drawing hole is inserted into the guide groove and is drawn out in the direction of the button holder through the guide hole.

Hooking means for hooking the bobbin chamber to the shank portion of the button is provided on the outer peripheral surface portion of the bobbin drum which forms a predetermined acute angle with the bobbin chamber guide. The hooking means comprises a hooking bracket mounted to the immersion drum, a hooker hinged to the hooking bracket to substantially hook the nested bobbin chamber to the shank portion and a return spring to impart restoring force to the hooker.

In addition, the hiding means includes knot forming means for supporting the reducing chamber in an elliptical shape so that a knot is formed. The knot forming means includes a cam which is disposed outside the third lower vertical wall and rotates by receiving power from the driving means. The cam has a ♡ shape with recesses.

On the other hand, between the button holder and the decoy drum, the knot forming shaft is installed on the base to be rotatable in the longitudinal direction. The upper end of the knot forming shaft is provided with a hook of approximately 1/4 arc shape. A catching jaw is formed in the catching piece so that the jamming chamber is caught in the catching jaw, and then the catching piece is rotated about 120 ° together with the knot forming shaft.

The eccentric rotational motion force of the cam is transmitted to the knot-forming axis by the turning mechanism. The turning mechanism includes a guide rail mounted on the third lower vertical wall, a rack moved along the guide rail, a roller mounted on the rack and receiving a eccentric rotational motion of the cam, and a pinion mounted on the knot forming shaft and engaged with the rack. It includes. In addition, the rack is supported by the return spring so that when the roller reaches the recess position of the cam, the rack is returned to the original position by the return spring.

The drive means includes a drive shaft rotatably installed on the first to third lower vertical walls and connected to the cam. The drive shaft is individually connected to each of the bobbin shaft and the reduction shaft through a power transmission mechanism. In addition, a drive shaft or a motor may be connected to the drive shaft. The power transmission mechanism preferably includes a drive and driven pulley and a belt connecting each pulley.

The control means comprise a cylinder which supports the rack in the opposite direction of the cam. That is, when the rod of the cylinder is advanced, the rack does not return to the original position even when the roller reaches the position of the recess of the cam. Therefore, since the locking piece does not rotate, the bobbin chamber is wound around the shank portion of the button by the set number of times without being caught by the locking jaw. Therefore, if the number of times is set in advance, for example, if the number of times is set to three, the operation is performed such that the oval reducing chamber is wound once on the shank portion after the reduction chamber is wound three times on the button shank portion.

It is comprised as mentioned above, and a wound chamber is wound up once by the shank part again in the state which wound up the wound chamber once in the shank part, and kept it elliptical. Then, when the elliptical chamber is attached to the shank portion and the chamber is pulled, the chamber is firmly knotted, thereby preventing the chamber from being loosened.

Hereinafter, the immersion method according to the present invention will be described in detail, and the configuration of the immersion apparatus to which the method is applied will be described in detail.

2 to 5 are perspective views sequentially showing the method of hiding according to the present invention.

In the figures, the axis formed in the button 10 is artificially formed in the button 10 to represent the shank portion 11 of the button 10. First, as shown in FIG. 2, the other end of the reducing chamber 20 is attached to the locking jaw 472 of the locking piece 471 in a state in which one end of the reducing chamber 20 is supported by the shank portion 11. Afterwards it extends in the direction of the shank portion 11 again. Therefore, the reduction chamber 20 becomes an ellipse shape. Here, the catching piece 471 and the catching jaw 472 become a component forming a main part of the capturing apparatus described later.

Subsequently, with reference to FIG. 3, the reduction chamber 20 is wound around the shank portion 11 at least once in a state in which the reduction chamber 20 is supported on the locking step. Then, as shown in FIG. 4, the elliptical reducing chamber 20 is attached to the shank portion 11 as it is. Finally, pulling out the chamber 20, a solid knot is formed in the chamber 20 as shown in FIG. Therefore, the pull-out chamber 20 is pulled toward either side, so that the chamber 20 is never released unless the chamber 20 is cut.

With reference to the accompanying drawings, a description will be made in detail with reference to the accompanying drawings, the method of automatically performing the above-described reduction method.

6 is a perspective view from above of the decay device according to the present invention, and FIG. 7 is a front view of the decay device.

6 and 7, the decoupling device includes a base 100, a bobbin support means 200 disposed on the base 100 to support the bobbin 210, and a button holder on which the button 10 is mounted. The reduction means 400 and the reduction means 400 for concealing the reduction chamber 20 in the same manner as described above in the shank portion 11 of the button 10 mounted on the means 300 and the button mounting means 300. And drive means 500 for actuating the bobbin support means 200. On the other hand, it is preferable to further include means 600 for artificially controlling the number of simple chamber winding processes made between the steps of hanging the oval shaped chamber 20 on the shank portion 11. That is, the control means 600 functions to prevent a part of the operation of the subtraction means 400, a detailed description thereof will be described later.

The base 100 has a flat plate shape, and the first to fourth upper vertical walls 101, 102, 103, and 104 are disposed on the upper side, and the first to third lower vertical walls 111, 112, and 113 are disposed on the lower side. The first lower vertical wall 111 is disposed between the first upper vertical wall 101 and the second upper vertical wall 102. The second lower vertical wall 112 is disposed between the second upper vertical wall 102 and the third upper vertical wall 103. The third lower vertical wall 113 is disposed outside the fourth upper vertical wall 104.

The bobbin support means 200 comprises a bobbin shaft 220 on which the bobbin 210 is mounted. The bobbin shaft 220 is rotatably installed horizontally on the first and second upper vertical walls 101 and 102. The bobbin 210 is mounted on the bobbin shaft 220 protruding from the second upper vertical wall 102 to rotate together with the bobbin shaft 220. That is, the bobbin 210 faces the third upper vertical wall 103.

The button mounting means 300 is shown in detail in exploded perspective view in FIG. 8. As shown in FIG. 8, the button mounting means 300 includes a hinge bracket 310 installed on the base 100 that is outside of the fourth upper vertical wall 104. The hinge bracket 310 is arranged so that the planar shape is [, and the opening side faces the 4th upper vertical wall 104]. The button holder 320 is hinged to both inner walls of the hinge bracket 310. Therefore, the button holder 320 is caught by the blocked inner wall of the hinge bracket 310 is limited in the outward rotation. In addition, since the bottom surface of the button holder 320 is flat, the rotation in the inward direction is also limited to a certain angle. On the other hand, in the present embodiment, the button holder 320 is a mounting frame 321 connected to the hinge bracket 310 and the mounting holder 322 is installed on the mounting frame 321 having a V-shaped mounting groove 323 It is composed. However, the button holder 320 may not necessarily be configured as two mounting frames 321 and two holder holders 322, but may be formed integrally.

An operating pin 330 protruding to the bottom of the base 100 is installed on the bottom surface of the mounting frame 321. The first return spring 340 supported by the third lower vertical wall 113 is connected to the actuating pin 330 so that the mounting frame 321 is always connected to the hinge bracket 310 by the first return spring 340. It is elastically supported in the direction of the blocked wall. In addition, when the mounting frame 321 rotates toward the opening side of the hinge bracket 310 while compressing the first return spring 340, the limit switch 350 in contact with the operation pin 330 is the base 100. It is attached to the bottom of the. The limit switch 350 controls the operation of the driving means 500 according to the contact with the operation pin 330.

The reduction means 400 includes a reduction shaft 410 rotatably installed laterally on the third and fourth upper vertical walls 103 and 104. The reduction shaft 410 is preferably disposed on the same axis as the bobbin shaft 220. In the reduction shaft 410, a drawing hole 411 through which the reduction chamber released from the bobbin 210 is drawn out is formed through the axial direction.

A reduction drum 420 shown in a perspective view enlarged in FIG. 9 is installed on the reduction shaft 410 protruding from the fourth upper vertical wall 104. On the outer circumferential surface of the reduction drum 420, the reduction chamber guide 421 is formed to protrude in the direction of the button holder 320 in parallel with the axial direction. Guide chamber 422 is formed in the guide chamber 421, the guide chamber 422 is fitted in the circumferential direction. A guide end 423 is formed to protrude in the radial direction at the tip of the chamber chamber guide 421, and a guide hole 424 into which the chamber chamber 20 is fitted is formed at the guide end 423. Accordingly, the reduction chamber 20 drawn out through the drawing hole 411 is inserted into the guide groove 422 and then drawn out to the button holder 320 through the guide hole 424.

The hooking means 430 is provided on the coiling drum 420 for hooking the coiled chamber 20 drawn out as described above and supported in an elliptical shape to the shank portion 11 of the button 10 in a unique manner according to the present invention described above. do. The hooking means 430 is installed on the outer circumferential surface portion of the reduction drum 420 that forms a predetermined acute angle with the reduction chamber guide 421.

The hooking means 430 includes a hooking bracket 431 installed on the outer circumferential surface of the reduction drum 420. The hooking bracket 431 has a rectangular shape, and a slot 432 is formed along the radial direction on the upper surface thereof. A hooker 433 for hanging the oval shaped chamber 20 on the shank portion 11 is received in the slot 432 and hinged to both side walls of the slot 432. Accordingly, the hooker 433 faces the radial direction as in the slot 432 forming direction, and particularly has an inner end projecting from the hooking bracket 431 toward the center of the coiling drum 420. On the other hand, the outer end of the hooker 433 is elastically supported by the second return spring 434 provided on the bottom surface of the slot 432 of the hooking bracket 431. The reason why the hooker 433 is elastically supported by the second return spring 434 is to allow the hooker 433 to bend the locking chamber 20 to the shank portion 11 flexibly, so that the hooker 433 is supported by the hooker 433. This is to prevent the phenomenon that the reduction chamber 20 is cut.

In addition, the hiding means 400 includes a knot forming means 450 for supporting the reducing chamber 20 in an elliptic shape so that a knot is formed. The detailed configuration of the knot forming means 450 will be described in detail with reference to FIGS. 6 and 7 and FIG. 10 which is a left side view.

The knot forming means 450 comprises a cam 460 disposed on the left side of the outer side of the third lower vertical wall 113. The cam 460 is a ♡ shape having a concave portion 461 and a lobe 462 formed on the opposite side of the concave portion 461, as shown in detail in front view in FIG. 11, from the drive means 500. Power is received.

In particular, the ♡ -shaped cam 460 is eccentrically connected to the drive means 500. That is, as shown in FIG. 11, the driving shaft 510 of the driving means 500 to be described later is not connected to the center of the cam 460 but is eccentrically connected to one side on the horizontal line and to the right side in FIG. 11. Accordingly, unlike the general cam, the cam 460 applied to the reduction device according to the present invention has a lobe 462 and a central axis is eccentric. As a result, the lobe 462 becomes the entire right portion of the diameter line connecting the center of the cam 460 at the center of the recess 461.

On the other hand, the knot forming shaft 470 is rotatably installed in the longitudinal direction on the portion of the base 100 between the button holder 320 and the coiling drum 420. The knot forming shaft 470 is rotatably supported by a bearing 473 provided on the horizontal stand 114 installed at the lower end of the third lower vertical wall 113.

The engaging piece 471 mentioned in the method description is installed at the top of the knot forming shaft 470. The catching piece 471 is approximately 1/4 circular arc shape. The above-mentioned locking step 472 is integrally formed on the inner surface of the locking piece 471, that is, the surface facing the reduction drum 420. Although the operation of the reduction device will be described in detail above, after the locking chamber 20 is hooked to the locking jaw 472, the locking piece 471 is rotated by about 120 ° along with the knot forming shaft 470 to hook the hooker 433. It hangs on the shank part 11 by it.

The eccentric rotational movement force of the cam 460 is transmitted to the knotting shaft 470 by the direction change mechanism 480. The turning mechanism 480 includes a guide rail 481 mounted horizontally to the outer surface of the third lower vertical wall 113. The rack 482 is movably connected to the guide rail 481. A roller 483 in rolling friction contact with the cam 460 is rotatably mounted to the rack 482. The pinion 484 meshed with the rack 482 is installed on the knot forming shaft 470. In particular, the rack 482 is connected to the third return spring 485 provided on the underside of the base 100, so that when the roller 483 reaches the position of the recess 461 of the cam 460, the third return The rack 482 is returned to its original position by the spring 485.

The driving means 500 for transmitting power to the cam 460 and the reduction shaft 410 and the bobbin shaft 210 having such a function are rotatably installed on the first to third lower vertical walls 111, 112, and 113. ). The cam 460 is connected to a portion of the driving shaft 510 protruding from the third lower vertical wall 113.

The drive shaft 510 is connected to the above-described reduction shaft 410 and the bobbin shaft 220 via the power transmission mechanism 520. The power transmission mechanism 520 includes drive pulleys 521 and 523 installed on the drive shaft 510, driven pulleys 522 and 524 installed on the bobbin shaft 220 and the reduction shaft 410, and drive pulleys 521 and 523 and driven pulleys 522 and 524 respectively. ) And belts 525 and 526 for connecting. In particular, the diameter of each driven pulley 522, 524 is half the diameter of the drive pulley 521, 523. Accordingly, the reduction shaft 410 and the bobbin shaft 220 are rotated two times every one rotation of the driving shaft 510. As a result, when the cam 460 is rotated once, the reduction drum 420 is rotated two times. The rotation ratio between the cam 460 and the reduction drum 420 becomes a very important factor in the process of concealing the shank portion 11 with the reduction device according to the present invention.

On the other hand, the motor 530 or the manual handle 540 may be applied as the drive source. The motor 530 is mounted to the second lower vertical wall 112. Pulleys 531 and 532 are installed on each of the shaft and the drive shaft 510 of the motor 530, and each pulley 531 and 532 is connected to the belt 533. The manual handle 540 is directly installed on the bobbin shaft 220 protruding to the outer surface of the first upper vertical wall 101. Even if only one of the motor 530 and the manual handle 540 is provided, the decoupling device according to the present invention does not interfere at all, but in case of emergency, as in the present embodiment, the motor 530 and the manual handle Preferably, the handle 540 is provided together.

When the coiling chamber 20 is wound around the shank portion 11 by the coiling device configured as described above, one step of winding the coiling chamber 20 around the shank portion 11 every time the cam 460 is rotated and The one-time process in which the oval reducing chamber 20 is hung on the shank portion 11 is repeatedly performed. However, since the above processes are not necessarily performed repeatedly, the simple winding process may be set at least twice between the processes in which the oval shaped chamber 20 is caught by the shank portion 11.

To this end, the above-described control means 600 is provided in the reduction apparatus. As shown in FIG. 10, the control means 600 comprises a cylinder 610 which supports the rack 482 in the opposite direction of the cam 460. The cylinder 610 is mounted laterally on the inner side surface of the third lower vertical wall 113. In addition, although not shown, a controller for controlling the operation of the cylinder 610 is provided in the reduction device.

That is, when the rod of the cylinder 610 advances, even if the roller 483 reaches the position of the recess 461 of the cam 460, the rack 482 will not return to a home position. Therefore, since the locking piece 471 does not rotate, the reduction chamber 20 is wound around the shank portion 11 of the button 10 by the set number of times without being caught by the locking step 472. Therefore, if the number of times is set in advance, for example, if the number of times is set three times, the chamber 20 is wound three times on the button shank 11, and then the elliptical chamber 20 is placed on the shank 11. The operation that takes a turn is made.

Hereinafter, an operation of winding the coiling chamber into the button shank unit with the coiling device according to the present embodiment configured as described above will be described in detail with reference to the accompanying drawings.

12 to 16 are perspective views sequentially showing an operation of winding the reduction chamber to the button shank portion by the reduction apparatus according to the present invention. 12 to 16 are shown with the base and respective vertical walls removed so that the concealment operation is clearly shown.

First, the reduction chamber 20 is drawn out from the bobbin 200 to the front surface of the reduction drum 420 through the drawing hole 411. Then, the insertion chamber 20 is inserted into the guide groove 422, and then passed through the guide hole (424). Subsequently, the support chamber 20 is supported on the shank portion 11 of the button 10, and then the button 10 is mounted on the mounting groove 323 of the button holder 320.

On the other hand, the initial state of the reduction device is as follows. As shown in FIG. 12, the button holder 320 is flipped to the opposite side of the coiling drum 420 by the first return spring 340. The cam 460 is a state in which the recess 461 is located in the vertical upper portion, and the lobe 462 is located in the vertical lower portion opposite thereto. According to this position of the cam 460, the knot forming shaft 470, which receives the eccentric rotational force of the cam 460, is rotated approximately 15 degrees toward the decoupling drum 420, so that the locking jaw 472 of the locking piece 471 is rotated. ) Is located close to the chamber chamber guide 421. On the other hand, the reduction chamber guide 421 is in the state arrange | positioned at the right side of the horizontal diameter line of the reduction drum 420. FIG.

In this state, when the button holder 320 on which the button 10 is mounted is pushed by hand to the coiling drum 420 while compressing the first return spring 340, the operation pin 330 contacts the limit switch 350. Done. Accordingly, the motor 530 is driven to transmit the rotational force to the cam 460, the reduction drum 420, and the bobbin shaft 220 through the power transmission mechanism 520. In particular, as described above, since the rotation ratio between the driving pulleys 521 and 523 to the driven pulleys 522 and 524 is 1: 2, when the cam 460 rotates once, the coiling drum 420 and the bobbin shaft 220 perform two rotations. Done.

On the premise of such a power transmission ratio, a state in which the immersion drum 420 is rotated 180 ° and the cam 460 is rotated 90 ° is shown in FIG. 13. As shown in FIG. 13, the decoupling chamber 20 is engaged with the locking jaw 472 in the initial position of FIG. 12, and is rotated to the opposite position of the locking jaw 472 by 180 ° rotation of the reduction drum 420. Extended. On the other hand, since the roller 483 is in contact with the lobe 462 of the cam 460 having the longest radius, the rack 482 is moved to the opposite side of the cam 460. Since the linear kinetic force of the rack 482 is transmitted to the knot forming shaft 470 by the pinion 484, the locking piece 471 is rotated toward the button holder 320 to form a parallel surface with the coiling drum 420. . As the locking piece 471 is slightly tilted backwards as described above, the locking chamber 20 supported by the locking jaw 472 is kept tight, so that the locking chamber 20 is separated from the locking jaw 472. This is avoided.

Subsequently, FIG. 14 shows a state where the winding drum 420 is rotated 360 degrees and the cam 460 is rotated 180 degrees from the initial position. The winding drum 420 is rotated 360 ° to return to the aforementioned initial position. However, since the roller 483 continues to be in contact with the lobe 462 of the cam 460 and is pushed, the locking piece 471 is maintained as it is in the folded position.

Thus, as shown in FIG. 15, when the reduction drum 420 is rotated 540 ° from the initial position and the cam 460 is rotated 270 °, the reduction chamber 20 withdrawn from the reduction chamber guide 421 is locked. It is wound on the shank portion 11 of the button 10 directly without being caught by the jaw 472.

At the same time, since the cam 460 is rotated by 270 °, the roller 483 that is elastically supported by the third return spring 485 enters the recess 461. Therefore, the rack 482 is also retracted in the same direction as the roller 483, so that the pinion 484 is rotated in the opposite direction to the above.

As a result, the knot forming shaft 470 also rotates in the same direction as the pinion 484, so that the locking piece 471 rotates about 120 ° inward. The position of the locking piece 471 is between the cage guard guide 421 and the hooker 433. The rotation angle of the locking piece 471 is limited to the moving length of the roller 483, that is, the depth of the recess 461. Therefore, the rotation angle of the locking piece 471 which enables the optimum reduction action is set in advance, so that the depth of the recess 461 is selected.

Finally, as shown in FIG. 16, as the cam 460 continues to rotate, the roller 483 is forced out of the recess 461 and pushed back by the cam 460. Thus, the rack 482 is advanced, so that the pinion 484 rotates in the opposite direction to the state of FIG.

Therefore, the locking piece 471 rotated 120 degrees returns to its original position. In this case, as described above, since the locking jaw 472 is located between the chamber guide 421 and the hooker 433 and then rotates in reverse, the upper part of the chamber 20 that is hooked to the locking jaw 472. The part is hooked to the hooker 433. Therefore, the oval shaped chamber 20 part which hanged on the hooker 433 hangs on the shank part 11. Meanwhile, the rack 482 is automatically returned to the initial position by the third return spring 485.

As described above, the reduction chamber 20 is formed in an elliptical shape and the operation of walking on the shank portion 11 is performed at a high speed by the motor 530. Of course, by rotating the manual handle 540, it is also possible to perform the above operation.

On the other hand, in the above-described capturing operation, one step of the winding chamber 20 is just wound on the shank portion 11, and then one step of hanging the oval shape on the shank portion 11 is repeatedly performed. The chamber 20 does not necessarily need to be repeatedly performed for each process described above.

That is, it is preferable to perform a simple winding operation at least 3 times between the operation | movement which hangs the elliptical reduction chamber 20. Such operation control is made possible by the above-described cylinder 610 and a controller.

When the simple winding operation is set three times through the controller, the rod of the cylinder 610 is advanced to push the rack 482. Therefore, even when the roller 483 reaches the position of the recess 461 of the cam 460, the roller 483 does not enter the recess 461. Accordingly, the reduction chamber 20 is simply wound three times on the shank portion 11. When the three simple winding operations are completed, the rod of the cylinder 610 is automatically retracted by the controller, so that the above-described elliptical reduction chamber 20 is caught by the shank portion 11 once.

As described above, according to the present invention, since the operation of simply winding the chamber to the shank portion and the operation of the elliptical chamber to hang on the shank portion are repeatedly performed at least one or more times, the chamber is firmly knotted on the shank portion. It will be rolled up. Thus, the phenomenon that the chamber is loosened at the shank portion is basically prevented.

On the other hand, in the present embodiment, the yarn wound to the shank portion is illustrated as limited to the general yarn, of course, the bobbin chamber of other materials such as rubber yarn can also be applied to the method and apparatus according to the present invention.

Although the present invention has been described in detail with reference to preferred embodiments, the present invention is not limited to the above embodiments, and various modifications may be made by those skilled in the art within the scope of the technical idea of the present invention. .

Claims (22)

a) forming an oval shape with one end of the chamber being supported by the shank portion of the button; b) simply winding the other end of the bobbin chamber to the shank portion of the button; c) hanging the elliptical chamber of the shank portion; And d) a method of concealing a button shank portion including pulling the other end of the wound chamber. The method of claim 1, Method for concealing the button shank portion, characterized in that the step b) at least three times. Base; Bobbin support means disposed on the base to support the bobbin; Button mounting means disposed on the base, the button mounting means being mounted; A reduction means for concealing the reduction chamber by the method according to claim 1 on the shank portion of the button mounted to the button mounting means; And And a driving means for operating the take-up means and the bobbin support means. The method of claim 3, wherein The bobbin support means includes a bobbin shaft arranged transversely on the base, the bobbin shaft is installed, and the bobbin shaft receives power from the driving means. The method of claim 3, wherein The button mounting means A hinge bracket installed on the base; And A hinge device connected to the hinge bracket, characterized in that the button shank including a button holder having a button mounting groove. The method of claim 5, An actuating pin protruding from the lower part of the base is installed at the lower end of the button holder, and the actuating device is a button shank reduction device characterized in that the support pin is elastically supported by a return spring connected to the base. 7. The apparatus of claim 6, wherein a limit switch selectively contacting the actuating pin to actuate the driving means is attached to a lower surface of the base. The method of claim 3, wherein The hiding means A reduction shaft disposed transversely on the base and having a drawing hole through which the reduction chamber from the bobbin supported by the bobbin support means is drawn along the axial direction; A reduction drum mounted on the reduction shaft and provided with a reduction chamber guide for guiding the reduction chamber drawn out through the drawing hole toward the button mounting means; Hooking means mounted to the coiling drum and hooking the elliptical chamber to the shank portion of the button; And And a knot forming means for supporting the bobbin chamber so that the knot is formed by elliptically supporting the bobbin chamber. The method of claim 8, The reduction chamber guide groove is formed in the guide chamber along the circumferential direction, the tip end of the guide chamber is formed, the guide end is formed protruding, the reduction device of the button shank portion, characterized in that the guide chamber is formed in the guide end. The method of claim 8, The hooking means A hooking bracket mounted to the coiling drum; And The hook shank unit is hinged to the hooking bracket, the hook shank unit, characterized in that it comprises a hooker for hanging the oval shaped chamber. The method of claim 10, And said hooking means further comprises a return spring for imparting restoring force to the hooker. The method of claim 8, The knot forming means A cam connected to the drive means; A knot forming shaft disposed adjacent said button mounting means and installed longitudinally in said base; A catching piece installed at an upper end of the knot forming shaft and having a catching jaw to which the reducing chamber is caught; And And a turning device for transferring the eccentric rotational force of the cam to the knot forming shaft. The method of claim 12, The cam of the button shank portion, it characterized in that the cam shape having a concave portion. The method of claim 13, And the cam is eccentrically connected to the driving means, the both sides of which are asymmetrical with respect to the recess. The method of claim 12, The redirection mechanism A guide rail mounted to the base; A rack moved along the guide rail; A roller installed in the rack to receive the eccentric rotational movement force of the cam; And And a pinion mounted on the knot-shaping shaft and engaged with the rack. The method of claim 15, And the rack is supported by a return spring so that the roller is received into the recess of the cam by the return spring. The method of claim 3, wherein The drive means Drive source; A drive shaft connected to the drive source; And And a power transmission mechanism for transmitting the power of the drive shaft to the concealment means and the bobbin support means. The method of claim 17, And the drive source is a manual handle connected to a motor or bobbin support means connected to the drive source. The method of claim 17, The power transmission mechanism A drive pulley mounted to the drive shaft; Driven pulleys provided in each of the coiling means and the bobbin supporting means; And And a belt connecting the drive and driven pulleys. The method of claim 19, The ratio of the diameter between the drive pulley and the driven pulley is 2: 1 button hide unit, characterized in that. The method of claim 3, wherein And a means for controlling the number of operations of simply winding the sensitization chamber to the shank portion at least two times between the operation of hanging the immersion chamber supported in the oval shape on the shank portion. . The method of claim 21, The control means A controller for setting the simple number of windings; And And a cylinder for controlling the operation of the reduction means according to a control signal of the controller.