WO2013118262A1

WO2013118262A1 - Button attaching device and button holding die

Info

Publication number: WO2013118262A1
Application number: PCT/JP2012/052885
Authority: WO
Inventors: 建二長谷川
Original assignee: Ykk株式会社
Priority date: 2012-02-08
Filing date: 2012-02-08
Publication date: 2013-08-15
Also published as: JPWO2013118262A1; TWI500396B; JP5859030B2; CN104114052B; CN104114052A; TW201345451A

Abstract

The present invention provides a button attaching device which enables the bottom of a button body to be thinned in a manner advantageous in terms of cost while preventing the bottom of the button body from being deformed by an impact occurring when the post of a button attaching tool penetrates through cloth. A button attaching device (100) is adapted so that, when attaching a button body (10) to cloth (1) using a button attaching tool (20), the post (22) of the button attaching tool (20) is passed through both the cloth (1) and the attaching opening (14) of the button body (10) and after that the post (22) is staked. The button attaching device (100) is provided with a first die (30) which holds the button body (10). The first die (30) includes: a hollow cylindrical holddown section (41) which, when the post (22) of the button attaching tool (20) penetrates through the cloth (1), holds down, at a first position on the inside in the radial direction, the portion of the button body (10) which surrounds the attaching opening (14); and a solid cylindrical punch (35) which stakes the post (22) having been penetrated through the cloth (1). The holddown section (41) is displaced from the first position to a second position on the outside in the radial direction when the punch (35) stakes the post (22).

Description

Button mounting device and button holding die

The present invention relates to a button attachment device and a button holding die, and more specifically, when attaching a button body such as a snap button to a cloth using a button attachment, the button attachment post penetrates the cloth, and then the button body The present invention relates to a button attachment device of a type that is crimped with a punch after passing through an attachment opening, and a button holding die that holds a button body in such a type of button attachment device.

When attaching a button body such as a snap button having an opening for attachment to a cloth using a button attachment having a post, the button body is held by the first die (button holding die) of the button attachment apparatus, and the button attachment apparatus In general, a button die is held by a second die arranged below the first die, and the cloth is horizontally arranged between the button body and the button fixture, and then the first die is directed to the second die. Descent. As a result, the post of the button body passes through the cloth upward, and then passes through the opening for attaching the button body. Then, the post is crimped by the punch of the first die, and the button body is fixed to the cloth. The first die has a pressing portion that presses the periphery of the button body mounting opening from above when the post of the button mounting tool penetrates the cloth upward from below. An example of such a configuration is disclosed in Japanese Patent Application Laid-Open No. 59-51804 (Document 1). 6 and 7 of Document 1, reference numeral 4 is a button body (operational component), 5 is a button attachment (fixing element), 6 is a post (pin) of the button attachment, 8 is a cloth (sheet material), Reference numeral 39 denotes a second die (attachment tool), 43 denotes a first die (attachment tool), 46 denotes a punch (anvil portion), and 45 denotes a pressing portion (tubular part). In the first die 43 of Literature 1, the inner diameter of the pressing portion 45 is set to be slightly larger than the outer diameter of the punch 46 in order to allow the punch 46 to descend and accommodate the post 6 after crimping.

JP 59-51804 A

In the first die 43 of Document 1, since the inner diameter of the pressing portion 45 is set to be slightly larger than the outer diameter of the punch 46, when the post 6 of the button fixture 5 penetrates the fabric 8, the pressing portion 45 is Then, an annular portion that is spaced radially outward from the peripheral edge of the mounting opening 17 (see FIG. 2 of Reference 1) in the button body 4 is pressed. Therefore, due to the impact of the post 6 penetrating the fabric 8 upward, the vicinity of the peripheral edge of the mounting opening 14 at the bottom 9 of the button body 4 (see FIG. 2 of Document 1) may be deformed, for example. Conventionally, in order to prevent such deformation, the thickness of the bottom of the button main body is increased or the strength of the product is ensured by using a high-strength material, but there is a problem that the cost increases accordingly. In addition, when the bottom of the button body is thickened, there is a problem that the button body becomes thicker than necessary on clothes, which may cause a sense of incongruity.

Therefore, the object of the present invention is to prevent the bottom of the button body from being deformed by an impact when the post of the button fixture penetrates the fabric, and to enable the bottom of the button body to be advantageously thinned in terms of cost. An object of the present invention is to provide a button mounting device and a button holding die.

In order to solve the above problems, according to the present invention, when the button body is attached to the cloth using the button attachment, the post of the button attachment is passed through the opening for attaching the cloth and the button body, and then the post is added. A button attachment device for fastening, comprising: a first die for holding a button body; and a second die for holding a button attachment, wherein the post of the button attachment penetrates the fabric. Sometimes, at a first position (initial position) on the radially inner side, a pressing portion that presses a peripheral portion of the mounting opening in the button body and a punch for caulking a post that penetrates the cloth, the pressing portion is A button mounting device is provided that is displaced from the first position to a second position radially outward when the punch caulks the post.

In the button mounting device according to the present invention, when the post of the button mounting tool held by the second die penetrates the cloth, the pressing portion of the first die is at the first position on the radially inner side, and the first die The peripheral part of the opening for attachment in the bottom part of the button main body held by is pressed down. When the post of the button fixture after penetrating the next dough is crimped with a punch, the pressing portion of the first die is displaced to the second position on the radially outer side. In one embodiment of the present invention, the pressing portion is displaced from the first position to the second position by being pushed away by a punch. However, the displacement of the pressing portion from the first position to the second position means that the portion where the punch expands and deforms radially outward of the post when caulking the post of the button fixture pushes the pressing portion radially outward. You can also use it.

As the button body in the present invention, any kind of resin or metal that is fixed to the fabric by receiving the post (shaft portion) of the button fixture penetrating the fabric from the mounting opening and being crimped. Buttons are included, and specific examples include female snaps and male snaps of snap buttons, buttons that are inserted into and removed from button holes, decorative buttons, and the like. The fabric includes woven fabric, fabric, nonwoven fabric, felt, leather, resin sheet and the like. In addition, when the button body is attached to the cloth, generally, the upper first die descends toward the lower second die, but this is not limiting, and the upper second die moves toward the lower first die. Or the first die or the second die may move laterally toward the second die or the first die.

In the present invention, the pressing portion may be completely or partially divided into a plurality in the circumferential direction. When the pressing portion is partially divided in the circumferential direction, for example, the slit extends in the circumferential direction from the end of the pressing portion on the side pressing the button body (lower end in FIG. 5) to the opposite side (upward in FIG. 5). Multiple can be put. When such a slit is inserted to the opposite end, the pressing portion is completely divided. The number of divisions in the circumferential direction of the pressing portion is at least two, preferably three or four, but may be more. When the pressing portion is partially divided, the displacement of the pressing portion from the initial position to the radially outer side can be an elastic deflection.

In the present invention, one of the outer periphery of the punch or the inner periphery of the pressing portion has an inclined surface for displacing the pressing portion from the first position to the second position radially outward as the punch moves during caulking. Can be provided. The inclined surface of the outer periphery of the punch or the inner periphery of the pressing part is inclined so that the diameter gradually decreases in the direction in which the punch moves during caulking, and the axial movement of the punch during caulking is moved in the radial direction of the pressing part. Play a role in converting.

In the present invention, the inner diameter of the pressing portion at the initial position can be set equal to or slightly larger than the diameter of the mounting opening. Thereby, the press part can press the peripheral part which adjoins or adjoins to the opening for attachment in the bottom part of a button main body in an initial position.

According to another aspect of the present invention, after the button attachment post is passed through the opening for attaching the cloth body and the button body, the post body is crimped to hold the button body used when attaching the button body to the cloth. A button holding die having a pressing portion for pressing a peripheral portion of an opening for attachment in a button body and a post penetrating the fabric at a first position radially inward when the button fixture post penetrates the fabric. A button holding die that is displaced from the first position to a second position radially outward when the punch is caulking the post. The button holding die according to the present invention corresponds to the first die in the button mounting device according to the present invention. In the present invention, the pressing portion can be displaced from the first position to the second position by being pushed away by a punch. Moreover, the said holding | suppressing part may be divided | segmented into plurality completely or partially in the circumferential direction. Further, one of the outer periphery of the punch or the inner periphery of the pressing portion is provided with an inclined surface for displacing the pressing portion from the first position to the second position radially outward as the punch moves during caulking. Can be. Furthermore, the inner diameter of the pressing portion at the initial position can be set equal to or slightly larger than the diameter of the mounting opening.

In the present invention, when the post of the button fixture passes through the fabric, the pressing portion of the first die is at the first position on the radially inner side, pressing the peripheral portion of the mounting opening at the bottom of the button body, When the post of the button fixture after penetrating the dough is crimped with a punch, the pressing portion is displaced to the second position on the radially outer side. Therefore, when the post of the button fixture passes through the cloth, the pressing portion in the first position surely supports the peripheral portion of the attachment opening at the bottom of the button main body, and prevents the bottom of the button main body from being deformed. In addition, the bottom of the button body can be thinned without using an expensive high-strength material.

FIG. 1A is a plan view of a button main body 10 attached to a cloth by the button attaching device according to the present invention, and FIG. 1B is a cross-sectional view taken along the line AA in FIG. 2A is a plan view of a button fixture used for attaching the button body to the cloth, and FIG. 2B is a cross-sectional view taken along the line BB of FIG. 2A. FIG. 3 is a cross-sectional view showing a state in which the button body is attached to the fabric using the button attachment. FIG. 4 is a schematic side view of the button mounting device. FIG. 5 is a cross-sectional explanatory view of the first die and the second die in a state in which the female snap and the button fixture are respectively held. FIG. 6 is a cross-sectional explanatory view showing the time when the lowering first die comes to a vertical position where the female snap being held comes into contact with the upper end of the button fixture post through the fabric, and the post is the fabric This is the state just before starting to penetrate. FIG. 7 is a cross-sectional explanatory view showing a state where the first die is further lowered from the position of FIG. 6 and the post of the button fixture has penetrated the fabric upward. FIG. 8 is a partially enlarged view of FIG. 9 is a cross-sectional view taken along the line CC of FIG. FIG. 10 is a cross-sectional explanatory view showing a point in time when the caulking by the punch is finished, and shows a state in which the material pressing portion is displaced radially outward. FIG. 11 is an enlarged view of FIG. 10, in which the presser body is elastically displaced radially outward by the punch body. 12 is a cross-sectional view taken along the line DD in FIG. FIG. 13 is an enlarged view similar to FIG. 11 showing an example in which the pressing portion main body and the pressing portion base are displaced outwardly in the radial direction without being bent by the punch main body. FIG. 14 is a cross-sectional explanatory view showing a resin female snap and a resin button attachment, which are another example of the button body, on the top and bottom of the fabric. FIG. 15 is a cross-sectional explanatory view showing a state immediately before the post of the button attachment tool penetrates the fabric upward. FIG. 16 is a cross-sectional explanatory view showing a state where the post of the button fixture has passed through the fabric upward and further passed upward through the female snap attachment opening. FIG. 17 is an explanatory cross-sectional view showing a state in which the punch has been lowered and the post has been crimped, and the pressing body is displaced outward in the radial direction. FIG. 18 is a cross-sectional explanatory view showing a male snap made of resin, which is another example of the button body, together with the cloth and the button attachment. FIG. 19 is a cross-sectional explanatory view showing a state in which a metal button, which is another example of a button body, of a type that is inserted into and removed from a button hole is attached to a cloth with a button attachment tool. FIG. 20 is a cross-sectional explanatory view schematically showing an example in which an inclined surface for displacing the pressing portion radially outward is provided on the outer periphery of the punch. FIG. 21 is a partially enlarged view similar to FIG. 8 showing a modification of the first die. FIG. 22 shows a state in which the punch is lowered from the state of FIG. 21 and the post of the button fixture is deformed, and this deformation displaces the pressing portion radially outward.

DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, preferred embodiments of the invention will be described with reference to the drawings. However, the invention is not limited to the embodiments, and can be modified within the scope of the claims and an equivalent scope thereof. It will be understood by those skilled in the art. Fig.1 (a) is a top view of the female snap 10 which is an example of the button main body attached to the cloth | dough 1 (refer FIG. 3) by the button mounting apparatus (refer FIG. 5 etc.) based on this invention, FIG. ) Is a cross-sectional view taken along the line AA in FIG. 2A is a plan view of the button fixture 20 used to attach the female snap 10 to the fabric 1, and FIG. 2B is a cross-sectional view taken along the line BB in FIG. 2A. FIG. 3 is a cross-sectional view showing a state in which the female snap 10 is attached to the fabric 1 using the button attachment 20. The female snap 10 is formed by drawing a metal plate such as an aluminum alloy or a trunk alloy, and has a circular bottom portion 11, a peripheral side portion 12 rising from the radially outer end of the bottom portion 11, And a curved portion 13 that curves inward in the radial direction from the upper end of the side portion 12. In the center of the bottom portion 11, an attachment opening 14 for receiving a post 22 (described later) of the button attachment 20 is provided. A space on the bottom portion 11 of the female snap 10 and on the radially inner side of the peripheral side portion 12 serves as a protrusion receiving portion 15 that removably receives an engaging protrusion of a male snap (not shown). When the bending portion 13 receives the engagement projection of the male snap, it is elastically bent slightly outward and then restored, thereby preventing easy release of the engagement projection from the projection receiving portion 15. Play a role. The button fixture 20 is also formed by drawing a metal plate such as an aluminum alloy or a trunk alloy, and includes a circular base 21 and a cylindrical post 22 protruding upward from the base 21. The base 21 has home base-shaped incisions 23 at three locations in the circumferential direction, and a portion where the incision 23 is cut open is bent to form a lower end lid 23 a that closes the lower end opening of the post 22. An upper end opening 24 is provided at the upper end of the post 22 for receiving a pin member 36 of a button mounting device to be described later. The female snap 10 is attached to the fabric 1 by passing the post 22 of the button fitting 20 through the fabric 1 and then passing through the mounting opening 14 of the female snap 10 and then crimping the post 22 as shown in FIG. Is done. When the post 22 penetrates the fabric 1, the substantially circular fabric piece 1 a is separated from the fabric 1, and this fabric piece 1 a is pushed into the post 22 from the upper end opening 24 of the post 22 by a pin member 36 of a button mounting device described later. It is. Since the fabric piece 1a that has entered the post 22 is not discharged to the outside from the lower end opening by the lower end lid portion 23a, it is not necessary to collect and discard the scattered fabric pieces 1a after the button mounting operation.

FIG. 4 is a schematic side view of the button mounting device 100. The button attachment device 100 includes an upper first die (button holding die) 30 that holds the female snap 10 during attachment, a second die 50 that holds the button attachment 20 below the first die 30, and a first die. A lifting mechanism (not shown) for lifting and lowering the die 30 is provided. FIG. 5 is an explanatory cross-sectional view of the first die 30 and the second die 50 in a state where the female snap 10 and the button fixture 20 are held, respectively. The first die 30 has a substantially cylindrical shape that holds the bottom portion 11 of the female snap 10 when the metal or resin-made annular button holding member 31 that holds the female snap 10 and the post 22 of the button fixture 20 penetrates the fabric 1. A metal lower member 40 having a bottom-like pressing portion 41 at the lower end, a metal upper member 33 connected to an elevating mechanism (not shown) of the button mounting device 100, and the upper member 33 and the lower member 40. An elastomer sleeve-like spring 34 disposed between the upper member 33 and the lower member 40 (within the central cavity (33c, 44)) and a post 22 of the button fixture 20 are added. A substantially cylindrical punch 35 made of steel for fastening and a metal or resin pin member 36 disposed on the hollow shaft portion (35e, 35f) of the punch 35 are provided. The punch 35 has a lower punch body 35a, an upper punch base 35b having an outer diameter larger than that of the punch body 35a, and a punch whose outer diameter is larger than that of the punch base 35b between the punch body 35a and the punch base 35b. And an intermediate portion 35c. The bottom surface 35d of the punch main body 35a is a surface for caulking the punch 22 of the button fixture 20, and is slightly recessed upward. The boundary between the outer peripheral surface and the bottom surface 35d of the punch body 35a is a corner portion 35g. The hollow shaft portions (35e, 35f) of the punch 35 are punched from a lower hollow shaft portion 35e having a relatively small diameter extending from the punch body 35a to approximately the middle in the vertical direction of the punch intermediate portion 35c, and from the middle in the vertical direction of the punch intermediate portion 35c. The upper hollow shaft portion 35f having a larger diameter than the lower hollow shaft portion 35e extending to the base portion 35b is divided. The lower member 40 includes a substantially cylindrical lower member main body 42 and a lower spring receiving portion 43 that protrudes radially outward from a lower portion of the lower member main body 42. The lower member main body 42 has an inner diameter slightly larger than the outer diameter of the punch intermediate portion 35c except for the upper end portion 42a and the lower end portion 42b. The inner diameter of the upper end portion 42a of the lower member main body 42 is reduced to the extent that it slightly exceeds the outer diameter of the punch base portion 35b. The lower end portion 42b of the lower member main body 42 has an inner diameter that is slightly larger than the outer diameter of the punch main body 35a. Between the upper end portion 42a and the lower end portion 42b inside the lower member main body 42, a lower cavity 44 that allows and restricts vertical displacement of the punch intermediate portion 35c is formed.

The pressing portion 41 extends downward from the radially inner end of the lower end portion 42b of the lower member main body 42. The pressing portion 41 has a pressing portion base portion 41a having an inner diameter slightly larger than the outer diameter of the punch body 35a, and extends downward from the pressing portion base portion 41a to the lower end with the same diameter. It has a pressing part main body 41b and an annular protrusion 41c that protrudes radially outward from a lower part of the pressing part base 41a. As shown in the horizontal section of FIG. 9, the pressing portion main body 41 b is provided with three slits 41 d at intervals of 120 degrees in the circumferential direction from the lower end upward to be parallel to the axis. Two or more slits 41d can be provided in the circumferential direction. Moreover, the slit 41d can be provided in the whole area | region of the holding | suppressing part 41, or the whole lower member 40 can be divided | segmented into the circumferential direction. The inner periphery of the pressing portion main body 41b includes an inclined surface 41e that is slightly inclined inward in the radial direction downward. When the punch body 35a is lowered during caulking, the corner portion 35g slides on the inclined surface 41e of the pressing portion main body 41b and pushes the pressing portion main body 41b outward in the radial direction. Thereby, the punch main body 35a is displaced so as to bend elastically outward in the radial direction. The inner diameter of the lower end of the pressing portion main body 41b is set to be the same as or slightly larger than the diameter of the opening 14 for attaching the female snap 10 in the initial state where the punch main body 35a is not lowered.

The button holding member 31 has a button holding portion 31 a that substantially matches the peripheral side portion 12 and the curved portion 13 of the female snap 10 at the lower end of the inner periphery, and the button holding portion 31 a is formed on the peripheral side portion 12 of the female snap 10. Hold the perimeter. Above the inner peripheral surface of the button holding member 31, an annular recess 31 b that fits with the annular protrusion 41 c of the pressing portion 41 is provided. Including the fitting of the annular protrusion 41c and the annular recess 31b, the upper end portion of the button holding member 31 matches the bottom surface of the lower end portion 42b of the lower member main body 42 of the lower member 42 and the outer peripheral surface of the pressing portion base portion 41a. Connected to the lower member 42. Further, an annular coil spring 32 is disposed on the outer periphery of the button holding member 31. The coil spring 32 elastically pushes the button holding member 31 slightly inward in the radial direction to maintain the connection state of the button holding member 31 to the lower member 40 and to promote the holding of the female snap 10 by the button holding portion 31a. Fulfill. The pin member 36 has an elongated pin body 36a disposed at the lower hollow shaft portion 35e of the punch 35 and a thick circle with a larger diameter than the hollow shaft portion 35e disposed at the lower end portion of the upper hollow shaft portion 35f of the punch 35. A plate-like punch base 35b. The punch base portion 35b is biased downward by a coil spring 36c accommodated in the upper hollow shaft portion 35f. In the initial state shown in FIG. 5, the pin base portion 36b is pressed against the lower end (boundary with the lower hollow shaft portion 35e) of the upper hollow shaft portion 35f by the bias of the coil spring 36c. At this time, the pin main body 36a protrudes below the bottom surface 35d of the punch main body 35a, and the lower end thereof is at the same vertical position as the lower end of the pressing portion main body 41b. The upper member 33 includes a cylindrical portion 33a that holds the upper half of the punch base portion 35b in the upper cavity 33c, and an upper spring receiving portion 33b that protrudes radially outward from the upper end of the cylindrical portion 33a. The spring 34 is disposed between the upper and lower

spring receiving portions

43, 33 b and around the cylindrical portion 33 a of the upper member 33 and the lower member main body 42 of the lower member 40. A predetermined interval is set between the upper end surface of the lower member main body 42 of the member 40.

The second die 50 includes a substantially cylindrical die body 51 on which the button fixture 20 is placed on the upper surface, a cylindrical fabric support member 52 disposed above the periphery of the die body 51, and the periphery of the die body 51. And a spring 53 disposed below and elastically supporting the fabric support member 52. The die (main body) 51 has a spring receiving portion 51 a that receives the lower end of the spring 53 and protrudes outward in the radial direction. In the initial state of FIG. 5, the upper end of the dough support member 52 is in the same vertical position as the upper end of the post 22 of the button fixture 20 placed on the die body 51.

Next, a process of attaching the female snap 10 to the fabric 1 using the button attachment 20 by the button attachment device 100 will be described. First, the female snap 10 and the button fixture 20 are held on the button holding portion 31a of the upper die 30 and the die body 51 of the lower die 50 in the initial position (see FIG. 5). This is done automatically for the upper and lower dies 30 and 50 from the respective automatic feeders (not shown) of the female snap 10 and the button fixture 20, but may be done manually by the operator. Further, the fabric 1 is disposed on the fabric support member 52 of the lower die 50. Next, when the operator turns on the operation switch of the button mounting device 100 from the state of FIG. 5, the lifting mechanism of the button mounting device 100 lowers the first die 30 from the upper member 33. FIG. 6 is a cross-sectional explanatory view showing the time when the lowering first die 30 comes to the vertical position where the female snap 10 held is in contact with the upper end of the post 22 of the button fixture 20 via the fabric 1. There is a state immediately before the post 22 starts to penetrate the fabric 1. FIG. 7 is a cross-sectional explanatory view showing a state where the first die 30 is further lowered from the position of FIG. 6 and the post 22 of the button fixture 20 penetrates the fabric 1 upward. 8 is a partially enlarged view of FIG. 7, and FIG. 9 is a sectional view taken along the line CC of FIG. When the upper die 30 descends from the state of FIG. 6 and pushes the cloth 1 downward, as shown in FIG. 7, the post 22 of the button fixture 20 penetrates the cloth 1 upward, and then the female snap 10 is attached. It enters the inside of the female snap 10 through the opening 14 (FIG. 7). Thus, when the post 22 penetrates the dough 1, the pressing portion main body 41 b of the pressing portion 41 in the upper die 30 is in the initial position (first position) on the radially inner side, and the inner diameter of the lower end of the pressing portion main body 41 b is the same. Since the diameter of the attachment opening 14 of the female snap 10 is the same or substantially the same, the peripheral portion of the attachment opening 14 (the annular portion adjacent to the attachment opening 14) at the bottom 11 of the female snap 10 is pressed. Therefore, deformation such as the peripheral edge portion of the mounting opening 14 in the bottom portion 11 of the female snap 10 being rolled up by the impact of the post 22 penetrating the fabric 1 upward is prevented. Thereby, it becomes possible to make the thickness of the bottom part 11 of the female snap 10 thin compared with a conventional product. The annular portion is located near the mounting opening 14 on the bottom 11 between the outer peripheral edge of the mounting opening 14 and the inner periphery of the peripheral side section 12. Further, when the post 22 of the button fixture 20 penetrates the fabric 1 upward, the substantially circular fabric piece 1 a is separated from the fabric 1, and this fabric piece 1 a is posted by the pin body 36 a of the pin member 36 of the upper die 30. It is pushed into the post 22 from the upper end opening 24 of 22 and stays in the post 22. As the upper die 30 is lowered, the fabric support member 52 of the lower die 50 is displaced downward against the bias of the spring 53.

At the time of FIG. 7, the lower member 40 of the upper die 30 is such that the lower end of the pressing portion 41 is connected to the die body of the lower die 50 via the bottom 11 of the female snap 10, the fabric 1 and the base 21 of the button fixture 20. It hits the top surface of 51 and further descent is prevented. On the other hand, the upper member 33 continues to descend while compressing the spring 34 between the upper spring receiving portion 33 b and the lower spring receiving portion 43 of the lower member 40. As the upper member 33 is lowered, the punch 35 is lowered from the vertical position in FIGS. 7 and 8, and as shown in FIG. 10, the punch body 35a crimps the punch 22 of the button fixture 20 on the bottom surface 35d. FIG. 10 shows a point in time when caulking is completed. 11 is a partially enlarged view of FIG. 10, and FIG. 12 is a cross-sectional view taken along the line DD in FIG. When the punch 35 descends to crimp the post 22 of the button holder 20, the punch body 35a slides downward on the inclined surface 41e of the pressing body 41b while the punch body 35a slides downward on the inclined surface 41e. Enters radially inward. Thereby, the holding | maintenance part main body 41b pushes to radial direction outer side, as shown in FIG. Thereby, the holding | maintenance part main body 41b which has the slit 41d is displaced to a 2nd position so that it may bend to radial direction outer side, and the width | variety of the slit 41d expands as shown in FIG. By expanding the diameter of the pressing portion main body 41b in this manner, the post 22 can be crimped by the entire bottom surface 35d of the punch main body 35a, and the post 22 that has been crimped and crushed in the axial direction and expanded in the radial direction is accommodated. A space to be secured is secured on the inner side in the radial direction of the pressing portion main body 41b. In addition, the holding | suppressing part base 41a without the slit 41d is displaced slightly with the bending of the holding | maintenance part main body 41b. When the entire lower member 40 is divided into three parts in the circumferential direction, as shown in FIG. 13, the presser body 41b does not bend due to the lowering of the punch body 35a, but moves radially outward together with the presser base 41a. Do (displace). 10 and 11, the lowering of the upper member 33, ie the upper die 30, is stopped, and then the upper die 30 is returned to the upper first position.

FIG. 14 shows another example of the button body, which is a resin female snap 60 and a resin button attachment 70 made of the cloth 1 (substantially the same as the cloth 1 described above. It is a cross-sectional explanatory view shown above and below. The female snap 60 is formed by injection molding of a thermoplastic resin, and includes a circular bottom portion 61, a peripheral side portion 62 rising from a radially outer end of the bottom portion 61, and a radially outer side from the upper end of the peripheral side portion 62. And an extending flange portion 63. The button fitting 70 is also formed by injection molding of a thermoplastic resin, and includes a substantially disc-shaped base 71 and a post 72 that projects upward from the base 71 and tapers. In the center of the bottom 61 of the male snap 60, an attachment opening 74 for passing the post 72 of the button attachment 70 is provided. A space on the bottom 61 of the female snap 60 and on the radially inner side of the peripheral side portion 62 is a projection receiving portion 65 that removably receives a male snap engagement projection (see the engagement projection 82 of the male snap 80 in FIG. 18). It becomes. The female snap 60 and the button attachment 70 can be attached to the fabric 1 in the same manner as the female snap 10 and the button attachment 20 using the button attachment device 100 described above. FIGS. 15 to 17 schematically show the process of attaching the female snap 60 to the fabric 1 using the button attachment 70 by the button attachment apparatus 100, and here, only the pressing portion 41 and the punch 35 in the button attachment apparatus 100 are schematically shown. It is represented. Even in this example, the button holding portion (not shown) holds the outside of the female snap 60. FIG. 15 shows a state immediately before the post 72 of the button fixture 70 penetrates the fabric 1 upward. At this time, the pressing portion main body 41 b of the pressing portion 41 is in the first position on the radially inner side, and supports a peripheral portion adjacent to the mounting opening 64 in the bottom portion 61 of the female snap 60. Next, as shown in FIG. 16, the post 72 of the button fixture 70 penetrates the fabric 1 upward, and further passes through the attachment opening 64 of the female snap 60 upward. Next, as shown in FIG. 17, the punch 35 (punch main body 35 a) is lowered to crimp the post 72. At the time of this caulking, the punch 35 displaces the pressing portion main body 41b to the second position outside in the radial direction, so that the post 72 can be caulked by the punch 35 and the caulked post 72 is accommodated. The space is secured on the inner side in the radial direction of the pressing portion main body 41b whose diameter has been increased.

In the above embodiment, the female snap is taken as an example of the button body, but the present invention is not limited to this. 18 shows another example of a button main body that can be attached to the cloth 1 by the button attachment device 100 described above. The male snap 80 made of resin is attached to the cloth 1 and the button attachment 70 (the cloth 1 and the cloth shown in FIG. Since it is substantially the same as the button fixture 70, it attaches the same reference number.) It is sectional explanatory drawing shown together. The male snap 80 includes a bottom portion 81 and a cylindrical engagement protrusion 82 that protrudes upward from the bottom portion 81 and engages with a female snap protrusion receiving portion (see the protrusion receiving portion 65 of the female snap 60 in FIG. 14). . At the center of the bottom 81 of the male snap 80, an attachment opening 84 for passing the post 72 of the button attachment 70 is provided. The pressing portion main body 41 b of the pressing portion 41 can be displaced from the first position inside in the radial direction shown in FIG. 18 to the second position outside in the radial direction by the punch 35. The male snap 80 is held by a button holding portion (not shown) that engages with the engaging protrusion 82 from the outside. FIG. 19 shows a button 90 attached to a button 90, which is frequently used in a metal jeans that is put in and out of a button hole, which is still another example of a button body that can be attached to the fabric 1 by the button attaching device 100 described above. It is a section explanatory view showing the state where it was attached to cloth 1 with tool 70a. The button 90 is formed by drawing a metal plate or the like, and includes a bottom portion 91, a circumferential side portion 92, and a head portion 93 extending radially outward from the upper end of the circumferential side portion 92, and is attached to the center of the bottom portion 91. An opening 94 is provided. The button fixture 70a is also formed by drawing a metal plate or the like, and includes a base 71a and a post 72a. The post 72 of the button fixture 70a passes through the fabric 1 and then passes through the opening 94 for attaching the button 90, and is then crimped. Even when the button 90 is attached to the fabric 1, at least the pressing portion main body 41b of the pressing portion 41 of the button mounting device 100 is displaced from the first position radially inward to the second position radially outward. Even in this example, the button holding unit (not shown) holds the outside of the button 90.

In the above-described example, the inclined surface 41e for converting the downward movement of the punch 35 in the axial direction into the radially outward displacement of the pressing portion 41 is provided on the pressing portion 41 side. ) Can be provided on the punch 135 side as shown in FIG. Referring to FIG. 20, the punch has a lower small-diameter portion 135a, an upper large-diameter portion 135b, and an inclined surface 135c extending between the outer peripheral upper end of the small-diameter portion 135a and the outer peripheral lower end of the large-diameter portion 135b. . The pressing portion 141 includes a pressing portion lower portion 141a having an inner diameter slightly larger than the outer diameter of the small diameter portion 135a, a pressing portion upper portion 141b having an inner diameter slightly larger than the outer diameter of the large diameter portion 135b, a pressing portion lower portion 141a and the pressing portion upper portion. 141b includes a connecting portion 141c at a portion connecting with 141b in a stepped manner, and has a corner portion 141d on the inner periphery of the connecting portion 141c. In this example, when the punch 135 is lowered during caulking, the inclined surface 135c of the punch 135 slides with respect to the corner portion 141c of the pressing portion 141, and the pressing portion lower portion 141a can be displaced radially outward.

In the above embodiment, the mode in which the

pressing portions

41 and 141 are pushed from the first position to the second position outside in the radial direction while the

punches

35 and 135 are lowered is illustrated, but the present invention is limited to such a mode. It is not something. FIG. 21 is a partially enlarged view similar to FIG. 8 showing a first die 130 which is a modification of the first die. The first die 130 differs from the first die 30 described above in the following two points. That is, the outer diameter of the punch main body 235a of the punch 235 is slightly smaller than the outer diameter of the punch main body 35a described above, and the inner diameter of the pressing portion 141a is constant up to the lower end and is substantially the same as the outer diameter of the punch main body 235a. It is a point. The configuration of the first die 130 other than these is substantially the same as that of the first die 30, and the female snap 10, the fabric 1, the button fixture 20, and the lower die 50 in FIGS. Common. In addition, there is no inclined surface on the outer periphery of the punch main body 235a or the inner periphery of the pressing portion 141a. When the punch body 235a is lowered from the state shown in FIG. 21, the post 22 of the button fixture 20 expands radially outward while being crushed in the axial direction, as shown in FIG. The portion of the post 22 that extends outward in the radial direction pushes the inner peripheral surface of the pressing portion 141a outward in the radial direction, thereby pressing the pressing portion 141a from the first position to the second position radially outward.

1

fabric

10, 60 female snap (button body)
80 Male snap (button body)
90 buttons (button body)
11, 61, 81, 91 Bottom part (of female snap) 14, 64, 84, 94 Opening for

attachment

20, 70,

70a Button attachment

22, 72,

72a Post

30, 130 First die 31 Button holding member 33 Upper member 34

Spring

35, 135, 235

Punch

35a, 135a Punch body 36 Pin member 40

Lower member

41, 141, 141a Holding part 41b Holding part body 41d Slit 41e, 135c Inclined surface 50 Second die

Claims

When the button body (10, 60, 80, 90) is attached to the fabric (1) using the button attachment (20, 70, 70a), the post (22, 72, 72a) is passed through the attachment opening (14, 64, 84, 94) of the fabric (1) and the button body (10, 60, 80, 90), and then the post (22, 72, 72a) is caulked. A button mounting device (100) for
A first die (30, 130) for holding a button body (10, 60, 80, 90);
A second die (50) for holding the button fixture (20, 70, 70a),
The first die (30, 130) is in a first position radially inward when the post (22, 72, 72a) of the button fixture (20, 70, 70a) passes through the fabric (1), A pressing part (41, 141, 141a) for pressing the peripheral part of the mounting opening (14, 64, 84, 94) in the button body (10, 60, 80, 90) and a post (22) penetrating the cloth (1) 72, 72a), and punches (35, 135, 235) for crimping,
The pressing portion (41, 141, 141a) is displaced from the first position to a second position radially outward when the punch (35, 135, 235) caulks the post (22, 72, 72a). Button mounting device.
The button attachment device according to claim 1, wherein the pressing portion (41, 141) is displaced from the first position to the second position by being pushed away by a punch (35, 135).
The button attachment device according to claim 1 or 2, wherein the pressing portion (41, 141, 141a) is divided into a plurality of completely or partially in the circumferential direction.
On one of the outer periphery of the punch (35, 135) or the inner periphery of the presser part (41, 141), the presser part (41, 141) is the first as the punch (35, 135) moves during caulking. The button mounting device according to any one of claims 1 to 3, further comprising an inclined surface (41e, 135c) for displacing from a position to a second position radially outward.
The inner diameter of the pressing portion (41, 141, 141a) at the first position is set to be equal to or slightly larger than the diameter of the mounting opening (14, 64, 84, 94). The button mounting apparatus of Claim 1.
The post (22, 72, 72a) of the button fixture (20, 70, 70a) is attached to the opening (14, 64, 84, 94) for the fabric (1) and the button body (10, 60, 80, 90). After passing, the button body (10, 60, 80, 90) used when attaching the button body (10, 60, 80, 90) to the fabric (1) by crimping the post (22, 72, 72a) 90) a button holding die (30, 130) for holding,
When the post (22, 72, 72a) of the button fixture (20, 70, 70a) passes through the fabric (1), the button body (10, 60, 80, 90) is located at the first position radially inward. A pressing portion (41, 141, 141a) for pressing the peripheral portion of the mounting opening (14, 64, 84, 94) in
A punch (35, 135, 235) for caulking the post (22, 72, 72a) penetrating the dough,
The pressing portion (41, 141, 141a) is displaced from the first position to a second position radially outward when the punch (35, 135, 235) caulks the post (22, 72, 72a). Button holding die.
The button holding die according to claim 6, wherein the pressing portion (41, 141) is displaced from the first position to the second position by being pushed by the punch (35, 135).
The button holding die according to claim 6 or 7, wherein the pressing portion (41, 141, 141a) is completely or partially divided into a plurality in the circumferential direction.
On one of the outer periphery of the punch (35, 135) or the inner periphery of the presser part (41, 141), the presser part (41, 141) is the first as the punch (35, 135) moves during caulking. The button holding die according to any one of claims 6 to 8, further comprising an inclined surface (41e, 135c) for displacing from a position to a second position radially outward.
The inner diameter of the pressing portion (41, 141, 141a) at the first position is set to be equal to or slightly larger than the diameter of the mounting opening (14, 64, 84, 94). A button holding die according to claim 1.