CN104185430B - Button side stamp die, button erecting device and button installation method - Google Patents

Abstract

The invention provides a kind of button side stamp die, button erecting device and button installation method.Button side stamp die (30) comprising: punch body (50), and it moves between position of readiness and the button installation site of being riveted by above-mentioned jut (22); Press-in body (41), it accommodates above-mentioned punch body (50), by being transmitted the movement of above-mentioned punch body (50) by transferring element, can with punch body (50) equidirectional mobile; Elastomer (60), it is configured between first receiving portion (53) of punch body (50) and second receiving portion (43) of press-in body (41) in above-mentioned press-in body (41); Fastener (70), above-mentioned press-in body (41) engages to maintain the compressive state of above-mentioned elastomer (60) by it; With locking cancel system, it is for removing the locking of above-mentioned fastener (70) to press-in body (41).By removing locking with above-mentioned locking cancel system, the elastomer (60) of compressive state is extended, above-mentioned press-in body (41) is moved to button installation site more at high speed than punch body (50), makes above-mentioned jut (22) through cloth (1) thus.

Description

Button side die, button installation device and button installation method

technical field

The present invention relates to a button side die, a button mounting device, and a button mounting method, and more particularly to a button side die and button mounting for attaching a button to cloth by riveting after the protrusion of the button mount penetrates through the cloth and the hole of the button Device and button installation method.

Background technique

As a method of attaching a button such as a snap button to a cloth such as clothes, the protruding portion of the button attachment is usually inserted into the cloth (through the cloth) and then passed through the hole of the button, followed by riveting. In this case, when attaching the button to the fabric, hold the button on the upper button side die, place the button attachment behind the lower attachment side die, and lower the button side die from the standby position to the button installation location. Thereby, the button is fixed to the cloth by first passing through the cloth and then performing the riveting operation. Such a button attachment device is disclosed in, for example, JP-A-2004-73368. As described in this document, in general, a button side die includes: a pressing body that passes through the cloth by pressing the cloth downward through the held button; The center hole descends the punch body for riveting the protrusion. The punch body stops after caulking the protruding part of the button attachment, and this stop position becomes the above-mentioned button attachment position.

In the above-mentioned button side die, the press-fit body and the punch body are integrally lowered at the same speed until they pass through the cloth. For example, in the case of a button mounting device that moves the button side die between the top dead center (standby position) and the bottom dead center (button mounting position) by converting the rotation of the crank into a linear motion, the rotation angle of the crank is shown in the figure 27 draws a sinusoidal curve, and the press-fit body and the punch body descend from the top dead center toward the bottom dead center at a speed corresponding to the tangent of the sinusoidal curve. That is, the speed gradually rises from the top dead center, then after being kept substantially constant, the speed gradually decreases near the bottom dead center, and becomes 0 at the bottom dead center. In addition, although it is omitted in FIG. 27 , after passing through the cloth, the press-fit body comes into contact with the attachment side die via the button, the cloth, and the button attachment, and stops.

Patent Document 1: Japanese Patent Laid-Open No. 2004-73368

The button side die needs to increase the descending speed of the press body when passing through the material to the extent that it can pass through the material reliably, but the descending speed of the punch body at the start of the riveting immediately after passing through the material also increases. . For this reason, the load applied to the button during caulking increases, and buttons have conventionally been designed thicker in order to withstand the load during caulking. In such a case, the material cost of the buttons increases, and the buttons protrude on clothes and the like, and there is a problem that the uncomfortable feeling is excessively increased.

Contents of the invention

Therefore, an object of the present invention is to provide a button side die, a button attaching device, and a button attaching method in which a press-fit body can be moved through the cloth at a higher speed than a punch body when passing through the cloth. Furthermore, another object of the present invention is to provide a button side die, a button attaching device, and a button attaching method capable of reducing the load applied to the button during riveting, thereby realizing thinning of the button.

In order to solve the above-mentioned problems, according to the present invention (the first aspect of the present invention), there is provided a button side die for riveting after the protrusion of the button attachment is penetrated through the hole of the cloth and the button. To hold the button when attaching the button to the cloth, the button side die includes: a punch body that moves between a standby position and a button installation position for riveting the above-mentioned protrusion; and a press-in body , which accommodates the above-mentioned punch body, and can move in the same direction as the punch body by transmitting the movement of the above-mentioned punch body through the transmission member; the elastic body is arranged between the first receiving part of the punch body and the Between the second receiving parts of the press-in body; the locking part, which locks the above-mentioned press-in body in order to maintain the compressed state of the above-mentioned elastic body; The lock of the body is released by the above-mentioned lock release mechanism, so that the elastic body in the compressed state is stretched, so that the above-mentioned push-in body moves to the button installation position at a higher speed than the punch body.

In the button-side die according to the present invention, when the punch body starts to move from the standby position to the button mounting position, the movement of the punch body is transmitted to the pressing body through the transmission member, and the pressing body also moves toward the button mounting position. At this time, in order to maintain the compressed state of the elastic body arranged between the first receiving part of the punch body and the second receiving part of the press-fit body, the locking part locks the press-fit body, and then the locking release mechanism releases the lock. The locking of the press-fit body by the stopper triggers the elongation of the elastic body in the compressed state. The elongation of the elastic body moves the press-fit body to the button installation position at a higher speed than the punch body through the second receiving portion of the press-fit body, thereby allowing the protrusion of the button attachment to penetrate the fabric. After passing through the fabric, the protruding part of the button attachment is then riveted with the punch body. The latching of the pressing body by the locking part and the compression of the elastic body are roughly divided into the following two methods: a) The locking part locks the pressing body during the movement of the pressing body from the standby position to the button installation position, Make the press-in body stationary relative to the continuously moving punch body, thereby gradually compressing the elastic body between the first receiving part and the second receiving part; b) When the punch body and the press-in body start to be installed from the standby position to the button At the initial moment of positional movement, the locking part has locked the pressing body, and the elastic body is also kept in a constant compressed state at the moment when the punch body and the pressing body start to move through the locking. The transmission member in the present invention is an elastic body in the form a), and a locking part in the form b).

In the present invention, as the buttons attached to the cloth, for example, resin or metal male snap buttons, female snap buttons, decorative buttons, etc. can be specifically mentioned, but not limited thereto, including the protrusion of the button attachment by the punch body. All kinds of buttons that can be attached to fabrics due to plastic deformation. Examples of the cloth include sheet-like materials such as woven fabrics, cloth, nonwoven fabrics, felt, leather, and resin sheets. A resin or metal member can be used as the button attachment, and the protrusion that penetrates the cloth is also called a shaft portion, a post portion, a pin, or the like. The elastic body in the present invention refers to a spring, an elastomer, or the like that can be stretched by releasing a compressed state.

In this invention, the said 2nd receiving part of the said press-fit body is located in the button attachment position side rather than the said 1st receiving part of the said punch body. In this case, the elastic body stretched from the compressed state after being released from the locking by the above-mentioned locking releasing mechanism is supported by the first receiving part of the punch body and presses the second receiving part of the push-in body toward the button. position side. Thereby, the press-fit body moves to the button attachment position at high speed.

In an embodiment of the first aspect of the present invention, the locking portion includes: an external locking member disposed outside the press-fit body; engagement; and an external elastic member, which applies force to the side of the external locking member engaged with the recess, and the movement of the press-fit body is stopped by engaging the external locking member with the recess, and the above-mentioned transmission member is the above-mentioned elastic body. This is an example of the structure of the above-mentioned form a). In the middle of the push-in body moving from the standby position to the button installation position, the external locking member is urged by the external elastic member to engage with the concave part of the push-in body, thereby pressing the push-in body. body stuck. As a result, the pressing body is stationary relative to the continuously moving punch body, and the elastic body is gradually compressed between the first receiving portion of the punch body and the second receiving portion of the pressing body. The locking release mechanism in this embodiment includes an engaging inclined surface provided in the recessed portion, and the engaging inclined surface can function so as to move the external locking member inside the recessed portion to the outside of the recessed portion. By pressing the pressing body toward the button installation position, the engaging inclined surface exerts a force in a direction to move the external locking member in the concave portion to the outside of the concave portion. Before the external locking part is about to come out of the recess, the press-in body is pressed to the button installation position by the punch body through the compressed elastic body, or the press-in body is pressed by the punch body (or a part of the driving structure that drives the punch body) Press directly to the side where the button will be installed.

In another embodiment of the first aspect of the present invention, the above-mentioned locking part includes: an internal locking part assembled to the above-mentioned punch body; a concave part, which is provided on the press-fit body, and can be locked with the internal locking part and the internal elastic part, which applies force to the side of the internal locking part that engages with the concave part, and through the internal locking part and the concave part, the press-fit body and the punch body are integrally connected, and the above-mentioned elastic The body is held in a compressed state, and the above-mentioned transmission member is the internal locking member. This is an example of the structure of the above-mentioned mode b). At the initial moment when the punch body and the press-fit body start to move from the standby position to the button installation position, the internal locking part has been urged by the internal elastic member to contact the concave part of the press-fit body. Engage, so that the pressing body is locked, and through this locking, the elastic body is also kept at a certain compression between the first receiving part of the punch body and the second receiving part of the pressing body at the moment of movement start state. The lock release mechanism in this embodiment includes: a lock release member disposed outside the press-fit body; a communicating portion that communicates with the concave portion from the outside of the press-fit body; The unlocking member biases toward the side entering the communicating portion, and the unlocking mechanism can function so that the unlocking member enters the communicating portion to move the inner locking member inside the recess to the outside of the recess. In this case, the locking release member can pass through the communication portion and engage with the internal locking member in the concave portion by the biasing force of the elastic member, and the locking releasing member resists the biasing force of the internal elastic member to move the internal locking member Out of the concave portion, the locking of the press-fit body by the internal locking member is released, and the elastic body in the compressed state is extended. In the present invention, the communication portion may be a slit extending through the side wall of the press-fit body and parallel to the axis of the press-fit body.

According to the second aspect of the present invention, there is provided a button installation device, which is used when the button is attached to the cloth by riveting after the protruding part of the button installation part is penetrated through the hole of the cloth and the button, and the button installation device includes: a button side die that holds a button; a mount side die that holds a button mount; and a drive mechanism that moves said button side die between top dead center and bottom dead center, said button side die comprising: a punch body , which is used to rivet the above-mentioned protruding part, and is driven by the above-mentioned driving mechanism to move between the standby position corresponding to the above-mentioned top dead center and the button installation position corresponding to the above-mentioned bottom dead center and riveting the above-mentioned protruding part; The entry body, which accommodates the above-mentioned punch body, can move in the same direction as the punch body by transmitting the movement of the above-mentioned punch body by the transmission member; the elastic body, which is in the above-mentioned press-in body, is arranged on the first Between the receiving part and the second receiving part of the press-fit body; the lock part, which locks the press-fit body in order to maintain the compressed state of the elastic body; and the lock release mechanism, which releases the lock part For the locking of the press-fit body, the lock is released by the above-mentioned lock release mechanism, and the elastic body in the compressed state is stretched, so that the above-mentioned press-fit body moves to the button installation position at a higher speed than the punch body, thereby making the above-mentioned The protrusion runs through the cloth.

The button-side die for holding a button in the second aspect of the present invention corresponds to the button-side die according to the above-mentioned first aspect of the present invention. In the second aspect of the present invention, after holding the button on the button side die and the button attachment on the attachment side die respectively, the button side die is moved from the top dead center (standby position) to the bottom dead center by the drive mechanism. (button installation position) moves. Thus, similarly to the first aspect of the present invention, the movement of the punch body is transmitted to the press-fit body through the transmission member, the locking part locks the press-fit body to maintain the compressed state of the elastic body, and then the locking release mechanism is released. The engagement of the pressing body by the locking portion causes the elastic body to expand, and the pressing body moves to the button installation position at a higher speed than the punch body to pass through the cloth.

In this invention, the said 2nd receiving part of the said press-fit body may be located in the button attachment position side rather than the said 1st receiving part of the said punch body. In this case, the elastic body stretched from the compressed state after being released from the locking by the above-mentioned locking releasing mechanism is supported by the first receiving part of the punch body and presses the second receiving part of the push-in body toward the button. position side. Thereby, the press-fit body moves to the button attachment position at high speed.

According to a third aspect of the present invention, there is provided a button mounting method for mounting a button on cloth, comprising: holding the button on a button side die having a punch body and a pressing body, and making the button mounting member having a protrusion The process of holding the die on the attaching part side; the process of moving the press-fit body at a higher speed than the punch body, and penetrating the protrusion of the button attaching part through the fabric; and riveting the protrusion with the punch body process. In the present invention, the pressing body is moved at a higher speed than the punch body to pass through the cloth, and then the button attachment is riveted with the punch body.

Invention effect

In the present invention, when the button is attached to the cloth by riveting after the protruding portion of the button attachment is inserted through the cloth and the hole of the button, the locking of the locking portion to the press-fit body is released by the locking release mechanism, and the compression force is released. The elastic body in the state is stretched, so that the pressing body moves to the button installation position at a higher speed than the punch body to pass through the cloth. Therefore, the cloth can be reliably passed by the pressing body moving at high speed, and the speed of the pressing body when passing through the cloth can be set independently from the speed of the punch body. As a result, there is no need to link the speed of the punch body at the time of caulking with the speed required for the pressing body to pass through the cloth. Thus, it is possible to separate from the press-fit body with a high speed when passing through the cloth, and set the speed of the punch body at the time of riveting to be low, thereby reducing the load applied to the button during riveting and realizing thinner buttons. change.

Description of drawings

FIG. 1 is an overall schematic diagram of a button attachment device according to one embodiment of the present invention.

Fig. 2 is an explanatory cross-sectional view of an upper die and a lower die in a standby position.

Fig. 3 is a cross-sectional explanatory view showing the timing when the external locking member locks the press-fit body.

4 is a cross-sectional explanatory view showing a state in which the punch body descends and the spring is compressed after the push-in body is locked.

Fig. 5 is a cross-sectional explanatory view showing the timing of releasing the locking of the press-fit body by the external locking member.

6 is a cross-sectional explanatory view showing a state in which the push-in body descends at a high speed after the lock is released, and presses down the cloth so that the post portion of the button attachment penetrates the cloth.

7 is an explanatory cross-sectional view showing a state in which a column portion is caulked with a tip end portion of a punch.

FIG. 8 is a partially enlarged cross-sectional explanatory view of FIG. 5 .

FIG. 9 is a partially enlarged cross-sectional explanatory view of FIG. 6 .

FIG. 10 is a partially enlarged cross-sectional explanatory view of FIG. 7 .

Fig. 11 is a cross-sectional explanatory view of the upper die (button side die) of the second embodiment in the standby position.

FIG. 12 is a cross-sectional explanatory view showing the timing when the locking release member starts to enter the slit of the press-fit body.

Fig. 13 is an explanatory cross-sectional view taken along line F-F of Fig. 12 .

14 is a cross-sectional explanatory view showing the timing when the locking release member pushes the inner locking member out from the second concave portion to release the locking of the insertion body.

Fig. 15 is an explanatory cross-sectional view taken along line G-G in Fig. 14 .

Fig. 16 is a cross-sectional explanatory view showing a state in which the push-in body descends at high speed after the locking is released, presses down the cloth, and penetrates the cloth with the post portion of the button attachment.

17 is a cross-sectional explanatory view showing a state in which the column portion is caulked with the tip end portion of the punch.

Fig. 18 is a cross-sectional explanatory view showing the middle of the plunger rising to the standby position.

19 is a cross-sectional explanatory view showing the upper die of the third embodiment during descent from the standby position.

20 is a cross-sectional explanatory view showing the timing when the internal lock member reaches the vertical position of the lock release member.

Fig. 21 is an explanatory cross-sectional view taken along line H-H in Fig. 20 .

Fig. 22 is a cross-sectional explanatory view taken along line I-I in Fig. 21 .

FIG. 23 is a cross-sectional explanatory view showing the timing when the plunger is slightly lowered from the timing in FIG. 20 .

Fig. 24 is an explanatory cross-sectional view taken along line J-J in Fig. 23 .

25 is a cross-sectional explanatory view showing a state in which the lock of the press-fit body is released and the spring is stretched.

Fig. 26 is a sinusoidal curve showing the rotation angle of the crank, showing the descending state of the plunger in the first embodiment.

Fig. 27 is a sinusoidal curve showing the rotation angle of the crank of the drive mechanism of the conventional button side die.

Symbol Description

1 fabric

10 male snap buttons (buttons)

20 button mounts

30, 130, 230 upper die (button side die)

40, 140, 240 plunger

41, 141, 241 pressed into the body

42, 142, 242 main housing part

43, 143, 243 lower spring receiving part (second receiving part)

44 first recess

44a Upper inclined surface (engagement inclined surface)

50, 150, 250 punch bodies

53, 153, 253 upper spring receiving part (first receiving part)

60, 160, 260 spring (elastomer)

70, 144, 244 locking part

73 external locking part

75 leaf spring (outer elastic part)

80 lower die (mounting part side die)

91 crankshaft

144a, 244a internal locking parts

144b, 244b spring (internal elastic part)

148, 246 gap (communication part)

147, 247 second recess

170, 270 locking release part

173, 273 locking release parts

175 torsion spring

Detailed ways

Hereinafter, preferred embodiments of the button attachment device according to the present invention will be described with reference to the drawings, but those skilled in the art should understand that the present invention is not limited to the above-described embodiments, and appropriate changes and the like can be made within the scope of the claims. FIG. 1 is an overall schematic diagram showing one embodiment (first embodiment) of the button attachment device according to the present invention. The button attaching device 100 includes: an upper die 30, which is a button side die, and is held when attaching a thermoplastic resin male snap button 10 (see FIG. 2 etc.) as an example of a button to the cloth 1 (see FIG. 3 etc.). The male snap button 10; the lower die 80, which is a mounting part side die, is fixedly disposed below the upper die 30, and carries a thermoplastic resin button mounting part (hereinafter referred to as "mounting part") 20; and a driving mechanism , which is used to make the main part of the upper die 30, that is, the plunger (plunger, see FIG. 2, etc.) 40 described later, be in the upper standby position (see FIG. 2) and the lower button installation position (see FIGS. 7 and 10) up and down between. The drive mechanism includes: a motor 90 ; a crank (not shown) rotated by the motor 90 ; and a crankshaft 91 reciprocating in the up and down direction as the crank rotates (see FIG. 2 and the like). The plunger 40 of the upper die 30 is connected to the lower end of the crankshaft 91, reaches the standby position at the top dead center of the crank, and reaches the button installation position at the bottom dead center. In the present embodiment, the button attaching device 100 is an electric device, but it is not limited thereto, and may be a foot-operated device in which a worker steps on a pedal to lower a plunger from a standby position, or the like. In addition, there are cases where the button-side die is disposed below and the attachment-side die is disposed above. The male snap button 10 includes: a disc-shaped base portion 11; and a cylindrical engaging protrusion 12 for engaging with an unillustrated female snap button. The mounting tool 20 includes: a substantially disk-shaped base portion 21; and a post portion 22 as an example of a protrusion protruding from the center of the base portion 21. As shown in FIG. A hole 13 is provided at the center of the base portion 11 of the male snap button 10 for passing the post portion 22 of the mounting member 20 therethrough immediately after penetrating the cloth 1 when attaching the male snap button 10 to the cloth 1 .

FIG. 2 is an explanatory cross-sectional view of the upper die 30 and the lower die 80 in the standby position. The upper die 30 includes: a plunger 40 raised and lowered by a drive mechanism; a stationary cylinder 31 surrounding the plunger 40 ; The plunger 40 includes: a pressing body 41, which is substantially in the shape of a hollow cylindrical shell; a punch body 50, which is accommodated in the pressing body 41, and whose upper end is connected to a crankshaft 91 of a driving mechanism; and a spring 60, which is formed by A cylindrical elastic body made of rubber, thermoplastic elastomer, or the like is accommodated in the press-fit body 41 , and transmits downward movement of the punch body 50 to the press-fit body 41 . This spring 60 is a compression spring. The press-fit body 41 includes: a main case part 42 having a constant outer diameter approximately equal to the inner diameter of the stationary cylindrical body 31; It protrudes downward and has an outer diameter smaller than that of the main case portion 42 . In addition, the axial (up-down direction) length of the main case portion 42 is much longer (about 4 to 6 times) than the axial length of the press-fit body 45 . The main case part 42 has an annular lower spring receiving part (second receiving part) 43 for receiving the lower end surface of the spring 60, which is located slightly below the middle of the main case part 42 in the up-down direction from the inner peripheral surface. Radially inward protruding. The upper end portion 42 a of (the main case portion 42 of) the press-fit body 41 has an inner diameter equal to the inner diameter of the lower spring receiving portion 43 . The thickness (length in the vertical direction) of the upper end portion 42 a is approximately twice the thickness of the lower spring receiving portion 43 . A concave portion 44 is formed at a circumferential position corresponding to the locking portion 70 between the upper end portion 42a of the main housing portion 42 and the lower spring receiving portion 43 in the vertical direction. The depression or hole in the locking end 74 of the In addition, in this embodiment, the said recessed part 44 is demonstrated as a 1st recessed part. The inner diameter of the main case part 42 is constant except for the upper end part 42a, the lower spring receiving part 43, and the boundary between the lower end part 42b of the main case part 42 and the press-fit body 45.

As shown enlarged in FIG. 8 , the press-fit body 45 of the press-fit body 41 has a center hole 46 , which penetrates up and down through the center of the bottom wall 45 a of the press-fit body 45 , and is used to make the punch body 50 described later. The punch front end 55 passes through. In addition, the press-fit body 45 has a button holding portion 47 for temporarily fixing the male snap button 10 below the bottom wall 45a. The button holding portion 47 is configured by connecting an independent annular member 48 to an annular expansion portion 45b that expands downward from the bottom wall 45a of the press-fit body 45 to form an inner diameter larger than the outer diameter of the engagement protrusion 12 of the male snap button 10 . slightly smaller space. And the male snap button 10 is temporarily fixed to the button holding part 47 by inserting the engaging protrusion 12 of the male snap button 10 into the said space. The annular member 48 is divided into a plurality of component pieces in the circumferential direction, and these component pieces are fixed to the expansion portion 45 b by the annular spring 49 . In addition, the lower end of the annular member 48 becomes the lower end of the press-fit body 41 and the plunger 40 . The first concave portion 44 of the main housing part 42 includes: an upper inclined surface 44a located above and inclined radially outward and upward in the peripheral wall 42c of the main housing part 42; Radially outward and downward slopes; and two circumferential side surfaces not shown. The upper inclined surface 44a is gradually inclined radially outward and upward relative to the horizontal plane (the surface perpendicular to the vertical direction), while the downward inclined surface 44b is steeply inclined radially outward and downward relative to the horizontal plane. That is, the angle of inclination of the upper inclined surface 44a with respect to the horizontal plane is smaller than that of the lower inclined surface 44b, and is about 5° to 30° with respect to the horizontal plane.

The punch body 50 includes a punch support 51 whose upper end is connected to the crankshaft 91 , and a punch body 54 made of steel integrally connected to the lower end 51 a of the punch support 51 and protruding downward. The punch supporting portion 51 includes: a lower end portion 51a whose outer diameter is approximately equal to the inner diameter of the main housing portion 42; a shaft portion 52 extending upward from the lower end portion 51a and connected to the lower end portion of the crankshaft 91; and an upper spring The receiving portion 53 (first receiving portion) has an outer diameter that increases near the middle of the shaft portion 52 in the vertical direction, and receives the upper end surface of the spring 60 . The shaft portion 52 has an outer diameter substantially equal to the inner diameters of the lower spring receiving portion 43 and the upper end portion 42 a of the main case portion 42 . The outer diameter of the upper spring receiving portion 53 is the same as the outer diameter of the lower end portion 51 a and substantially equal to the inner diameter of the main case portion 42 . In addition, the thickness (length in the vertical direction) of the upper spring receiving portion 53 is about twice the thickness of the lower spring receiving portion 43 . The lower end portion 51a of the punch support portion 51 has a hollow 51b recessed upward from the bottom surface, and the base end portion 54a of the punch main body 54 is accommodated and connected to the hollow 51b. The punch main body 54 includes: a punch main part 54b, which is cylindrical, roughly consistent with the inner space of the press-in body 45 of the press-fit body 41; The lower end of the stem 54b is tapered in a step shape and protrudes downward; and the base end portion 54a, which extends upward from the punch main body portion 54b, is connected to the lower end portion 51a of the punch support portion 51 by the hollow 51b as described above. . The outer diameter of the punch tip portion 55 is substantially equal to the inner diameter of the center hole 46 of the press-fit body 45 of the press-fit body 41 . The bottom surface of the punch front end portion 55 is slightly dented upward in order to smoothly caulk the column portion 22 of the attachment 20 .

The locking part 70 includes: a supporting part 71, which is fixed above the middle of the vertical direction of the outer peripheral surface of the stationary cylindrical body 31 so as to protrude outward in the radial direction; The shaft portion 72 is connected in a rotatable manner; and the leaf spring (external elastic member) 75, which is provided on the stationary cylindrical body 31 with the locking end 74 as the free end side end of the external locking member 73 The opening portion 32 elastically presses the external locking member 73 so as to press the outer peripheral surface of the plunger 40 (the main case portion 42 of the press-fit body 41 ). The external locking member 73 is arranged outside (outside of the outer peripheral surface) of the press-fit body 41 . The external locking member 73 includes: a base portion 73a extending downward from the shaft portion 72 and having a spring receiving surface 73b for receiving the leaf spring 75; and enters the opening 32 of the stationary cylindrical body 31, and a locking end 74 is formed at the end of the expanding portion 73c on the plunger 40 side. The locking end portion 74 has a locking end surface 74 a for blocking the upper inclined surface 44 a of the first concave portion 44 , and has substantially the same inclination angle as the upper inclined surface 44 a. The position pressed by the locking end 74 on the outer peripheral surface of the plunger 40 is located at the same position in the circumferential direction as the first concave portion 44 of the main housing portion 42, and is located at the position of the first concave portion 44 in the standby position of FIG. 2 . below. Although the details will be described later, when the plunger 40 descends so that the first concave portion 44 and the locking end portion 74 are positioned at the same vertical position, the locking end portion 74 enters due to the urging force of the leaf spring 75 . The first recess 44 prevents the first recess 44 and the press-fit body 41 from descending (see FIG. 3 ). The opening 32 of the stationary cylindrical body 31 is formed below the middle of the stationary cylindrical body 31 in the vertical direction so as to allow displacement of the expansion portion 73 c of the external locking member 73 .

The lower die 80 includes: a die main body 81 on which the mount 20 is placed on the upper surface; and a die support portion 82 which has a substantially cylindrical shape and supports the die main body 81 . The die main body 81 includes: an upper large-diameter portion 81 a; and a small-diameter portion 81 b extending downward from the large-diameter portion 81 a and accommodated and fixed in a cavity 82 a of the die support portion 82 . Around the large-diameter portion 81a, a tubular cloth support portion 83 and an annular spring 84 for biasing the cloth support portion 83 upward are arranged. The cloth support portion 83 normally protrudes above the upper surface of the large-diameter portion 81 a to the same extent as the upper end of the column portion 22 of the mount 20 by the urging force of the spring 84 . The lower end portion of the large-diameter portion 81 a is slightly expanded radially outward, and serves as a spring holder 81 c that receives the lower end of the spring 84 . When the cloth support portion 83 is pressed downward from the cloth 1 , the cloth support portion 83 is displaced downward against the urging force of the spring 84 .

Referring to FIG. 2 showing the standby position, symbol A indicates the lower end position of the press-fit body 41, B indicates the lower end position of the punch body 54b of the punch body 50, C indicates the lower end position of the spring 60, and E indicates the upper end position of the spring 60. , the above-mentioned positions A, B, C, and E move as the plunger 40 descends. In addition, the interval between the positions C-E is equal to the vertical length of the spring 60 . In addition, symbol D represents the lower end position of the stationary cylindrical body 31, and this position D does not move even if the plunger 40 descends. In addition, in the standby position, there is a predetermined first gap C1 between the lower end surface 91a of the crankshaft 91 and the upper surface of the upper end portion 42a of (the main case portion 42 of) the press-fit body 41 . Similarly, there is a second gap C2 between the lower surface of the upper end portion 42a of the press-fit body 41 and the upper surface of the upper spring receiving portion 53 of the punch body 50; There is a third gap C3 between the lower end surface and the upper surface of the lower end portion 42b of the main housing portion 42 of the press-fit body 41; A fourth gap C4 exists between the upper surfaces of the bottom wall 45 a of the press-fit body 45 of the press-fit body 41 . The fourth gap C4 is set slightly larger than the third gap C3.

Next, the process of attaching the male snap button 10 to the cloth 1 with the button attaching device 100 will be described. When attaching the male snap button 10 to the material 1, temporarily fix the male snap button 10 to the button holding portion 47 of the plunger 40 of the upper die 30, and place the attaching member 20 on the upper surface of the lower die 80. . Furthermore, the cloth 1 is placed on the cloth support portion 83 of the lower die 80 . In addition, although the work of attaching the male snap 10 and the attachment 20 to the upper die 30 and the lower die 80 is automatically performed from their supply device (not shown), it may be performed manually by an operator. After the male snap button 10 and the mounting member 20 are installed, the plunger 40 starts to descend from the standby position in FIG. 2 when the operator presses an operation button (not shown) of the button installation device 100 . In this initial stage, the punch body 50 descends with the lowering of the crankshaft 91, and the downward movement of the punch body 50 is transmitted from the upper spring receiving portion 53 to the lower spring receiving portion 43 via the spring 60, and the press-fit body 41 and the lower spring receiving portion 43 are connected. The punch body 50 descends integrally. In the first embodiment, the spring 60 is a transmission member that transmits the movement of the punch body 50 to the press-fit body 41 . Then, when the first concave portion 44 of the main case portion 42 of the press-fit body 41 reaches the position in the vertical direction corresponding to the locking end portion 74 of the external locking member 73 of the locking portion 70, as shown in FIG. In this way, the locking end 74 enters the first recess 44 by the urging force of the plate spring 75 to lock the pushing body 41 (locking timing), thereby preventing the pushing body 41 of the plunger 40 from descending. Up to this locking moment, the A-B interval and the C-E interval (the vertical length of the spring 60 ), and the first to fourth gaps C1, C2, C3, and C4 do not change. After the locking moment, the lowering of the press-fit body 41 is prevented by the locking end 74 , while the lowering of the plunger body 50 continues. Therefore, the upper spring receiving portion 53 of the punch body 50 presses the spring 60 downward with respect to the lower spring receiving portion 43 of the press-fit body 41 in the engaged state, thereby, as shown in FIG. Up and down directions) gradually compress the spring 60, and the distance between C-E is reduced. At the same time, the first, third and fourth gaps C1, C3, C4 also become smaller, while the second gap C2 is enlarged. Furthermore, a fifth gap C5 is formed between the lower spring receiving portion 43 of the press-fit body 41 and the upper end of the lower end portion 51 a of the punch supporting portion 51 of the punch body 50 .

While the press-fit body 41 is in the locked state, if the punch body 50 continues to descend and there is no longer the first gap C1, the lower end surface 91a of the crankshaft 91 contacts the upper surface of the upper end portion 42a of the press-fit body 41, and the crankshaft 91 will press down directly into body 41 . As a result, the upper inclined surface 44a of the first concave portion 44 of the press-fit body 41 presses the locking end surface 74a of the locking end portion 74 of the external locking member 73 downward. Therefore, as shown in FIG. 5 , the locking end portion 74 resists the urging force of the leaf spring 75 and is pushed outward in the radial direction, and disengages from the first concave portion 44 , thereby releasing the locking end portion 74 from pressing the press-fit body 41 . card stop. In addition, the lock release of the push-in body 41, that is, the detachment of the lock end portion 74 from the first concave portion 44, can also use the punch body 51 to press the push-in body 41 through the spring 60 that has been compressed to the maximum. downward force to perform. Therefore, the locking release mechanism in the first embodiment includes: the upper inclined surface 44a of the first concave portion 44; The inclined surface 44a, that is, the press-fit body 41 is pressed downward. The locking upper inclined surface 74 a of the outer locking end portion 74 also facilitates the detachment of the outer locking end portion 74 from the first concave portion 44 . At the moment of unlocking, as enlarged in FIG. 8 , the vertical position of the male snap button 10 held by the button holding portion 47 of the push-in body 41 is at a position just in contact with the cloth 1 . Then, triggered by the release of the locking of the locking end portion 74 , the spring 60 in the compressed state recovers instantaneously and expands downward. The lower spring receiving part 43 bears the elongation of the spring 60 , thereby causing the pressing body 41 to descend suddenly (high-speed descent), and the pressing body 45 of the pressing body 41 presses down the cloth 1 through the male snap button 10 . Thereby, as shown in FIGS. 6 and 9 , the column portion 22 of the attachment 20 on the lower die 80 penetrates the cloth 1 upward (passes through the cloth). The post 22 passes through the hole 13 of the male snap button 10 and enters the central hole 46 of the press-fit body 45 . At the end of passing through the cloth, the cloth 1 is sandwiched between the base 11 of the male snap 10 and the base 21 of the mount 20 . In addition, the cloth support portion 83 is pressed down by the cloth 1 against the urging force of the spring 84 . The press-fit body 41 that descends at a high speed after the locking is released is set to stop at a position in the vertical direction that just touches the lower die 80 via the male snap 10 , the material 1 and the mounting member 20 . During the high-speed descent of the press-fit body 41, the punch body 50 also descends together with the crankshaft 91, but the movement speed of the press-fit body 41 is very fast. Therefore, from the moment when the lock is released in FIG. 5 to the moment when the cloth is passed through in FIG. 6, the A-B interval, the C-E interval, the first, third, and fourth gaps C1, C3, and C4 expand, and the second and fifth gaps C2 , C5 shrinks. In addition, comparing the time just before the cloth passing (just after the lock is released) in FIG. 8 and the time when the cloth passing is completed in FIG. 9 , the position B becomes somewhat lower at the time when the cloth passing is completed.

At the end of passing through the cloth in FIG. 6 , the descent of the press-fit body 41 stops, but then the punch body 50 continues to descend, so that the punch front end 55 of the punch body 50 passes through the press-fit body 41. The central hole 46 of the main body 45 is lowered, and as shown in FIGS. 7 and 10 , the column portion 22 of the attachment 20 is crushed and caulked. Thus, the male snap button 10 is fixed to the cloth 1 . The A-B interval becomes smaller from the time when the cloth passing through in FIG. 9 is completed to the riveting completion time in FIG. 10 . At the end of the riveting in FIGS. 9 and 10 , the crank (not shown) of the driving mechanism reaches the bottom dead center, so the punch body 50 stops at the button installation position of FIGS. 9 and 10 and does not move downward. In this way, the installation work of the male snap button 10 is completed, and the plunger 40 then returns to the upper standby position (top dead center). Fig. 26 is the rotation angle of the crank (crankshaft 91) of the drive mechanism when the plunger 40 moves from the top dead center (standby position) to the bottom dead center (button installation position), and the sine curve is the tangent line of the plunger. 40 (injection body 41 and punch body 50) descending speed. The speed of the plunger 40 gradually rises from the top dead center, decreases at a substantially constant speed, and then gradually decreases near the bottom dead center. Point O is the moment through the cloth. At this moment O, the pressing body 41 descends momentarily and stops, and continues to press the cloth 1 (refer to the solid line), and the punch body 50 also continues to descend according to the sinusoidal curve after the time O passing through the cloth (refer to the dotted line).

11 to 18 show another embodiment (second embodiment) of the upper die of the button attachment device according to the present invention. FIG. 11 is an explanatory cross-sectional view of the upper die 130 and the lower die 80 in the standby position. In addition, since the male snap button 10, the mounting member 20, and the lower die 80 are the same as those of the first embodiment, the same reference numerals are attached and description thereof will be omitted. The upper die 130 includes: a plunger 140 raised and lowered by a drive mechanism; a stationary cylindrical body 131 surrounding the plunger 140 ; The lock release part 170 will be described in detail later, but it includes a pair of lock release members 173 arranged on both sides in the diameter direction of the plunger 140, and the torsion spring (elastic member) 175 applies force to the plunger 140 side. The external locking member 173 is disposed outside the press-fit body 141 (outside the outer peripheral surface). The plunger 140 includes: a press-fit body 141 in the shape of a substantially hollow cylindrical shell; a punch body 150 housed in the press-fit body 141, the upper end of which is connected to the lower end of the crankshaft of the drive mechanism; a spring (elastic body) 160 , which has a cylindrical shape and is housed in the press-fit body 141 ; The locking portion 144 will be described in detail later, but it includes a pair of semi-annular inner locking members 144a, and is biased by a spring (inner elastic member) 144b (see FIG. 13 etc.) in a direction to separate them from each other. . The press-fit body 141 includes: a main case portion 142 having a constant outer diameter substantially equal to the inner diameter of the stationary cylindrical body 131 ; and a press-fit body 145 protruding downward from a lower end of the main case portion 142 . The press-fit body 145 has substantially the same structure as the press-fit body 45 of the press-fit body 41 of the first embodiment, and has a center hole 146 and a button holding portion 149 . The main case part 142 has an annular lower spring receiving part (second receiving part) 143, which is located slightly below the middle of the main case part 142 in the vertical direction, from the inner peripheral surface 142a (refer to FIG. 15 ) to the The radially inner side protrudes and receives the lower end surface of the spring 160 . A slit (communication portion) 148 in the vertical direction is provided in the upper about 1/3 portion of the main case portion 142 through which the pair of locking release members 173 pass. The slit 148 penetrates the peripheral wall of the main case portion 142 in the radial direction, and reaches the upper end of the peripheral wall of the main case portion 142 . The lower end of the slit 148 forms an inclined surface 146a inclined radially outward and downward. Furthermore, on the inner peripheral surface 142a of the main case part 142, a portion adjacent to the lower end of each slit 148 above is formed over the entire area in the circumferential direction so as to be able to fit the pair of internal locking members 144a. The recess 147. In addition, in this embodiment, the said recessed part 147 is demonstrated as a 2nd recessed part.

The punch body 150 includes: a punch support part 151 whose upper end is connected to the crankshaft; and a punch main body 154 which is connected to a lower end part 151 a of the punch support part 151 . The punch main body 154 is substantially the same as the punch main body 54 of the first embodiment, and has a punch front end portion 155 . The punch supporting portion 151 includes: a lower end portion 151a whose outer diameter is approximately equal to the inner diameter of the main housing portion 142; an upper end portion 151b whose outer diameter is equal to the outer diameter of the lower end portion 151a and connected to the lower end portion of the crankshaft; and part 152, which connects the lower end part 151a and the upper end part 151b. The shaft portion 152 has an outer diameter substantially equal to the inner diameter of the lower spring receiving portion 143 of the main case portion 142 . The bottom surface of the upper end portion 151 b of the punch support portion 151 functions as an upper spring receiving portion (first receiving portion) 153 that receives the upper end surface of the spring 160 . Immediately above the upper spring receiving portion 153 of the punch supporting portion 151, an annular space 156 for accommodating the inner locking member 144a and the spring 144b is formed. The thickness (length in the vertical direction) of the upper spring receiving portion 153 is the same as that of the lower spring receiving portion 143 . The thickness of the annular space 156 is more than twice the thickness of the upper spring receiving portion 153 , and the inner diameter of the annular space 156 is the same as the inner diameter of the spring 160 .

The locking release part 170 has a frame body 171 whose cross section is L-shaped and annular, and is connected to the lower side of the stationary cylindrical body 131 . The frame body 171 forms an annular space below the stationary cylindrical body 131 for accommodating the locking release member 173 and the torsion spring 175 . The frame body 171 has a peripheral wall 171a and a bottom wall 171b, and a spring support portion 172 for supporting a center portion 175c of a torsion spring 175 is provided near the intersection of the peripheral wall 171a and the bottom wall 171b in the annular space. One end portion 175 a of the torsion spring 175 is connected to the lock release member 173 , and the other end portion 175 b is supported by the inner surface of the peripheral wall 171 a of the frame body 171 . As a result, the lock release member 173 is biased so that it approaches the plunger 140 around the center portion 175c of the torsion spring 175 (the lock release member 173 on the left is moved along the direction of the plunger 140 based on the paper surface of FIG. clockwise, and the locking release member 173 on the right rotates counterclockwise). The radius of rotation of the lock release member 173, that is, the length from the center (rotation center) of the center portion 175c of the torsion spring 175 to the free end of the lock release member 173 is greater than the center of the center portion 175c of the torsion spring 175 on the left and right sides. The distance between the center of rotation and the outer peripheral surface of the press-fit body 141 of the plunger 140 in the diameter direction (hereinafter referred to as "locking diameter direction") of the connection between them is long, and the distance between the center of rotation and the press-fit body 140 of the plunger 140 is long. The distances between the inner peripheral surfaces of the inlet bodies 141 (the inner ends in the radial direction of the slits 148 ) are equal (see FIG. 14 ). Therefore, at the standby position in FIG. 11 , the lock release member 173 is in contact with the outer peripheral surface of the plunger 140 obliquely. Although details will be described later, when the plunger 140 descends to a position where the slit 148 corresponds to the lock release member 173 , the lock release member 173 enters the slit 148 . The rotation of the lock release member 173 in the biasing direction causes the lock release member 173 to fall, and the long side of the lock release member 173 is placed at a horizontal position perpendicular to the axis of the plunger 140 by the bottom wall 171b of the frame body 171. restricted.

Referring to Fig. 13 as the F-F section of Fig. 12, the locking part 144 includes: a pair of semi-annular inner locking parts 144a; , the internal locking members 144a are biased in a direction in which the internal locking members 144a are separated from each other in the locking radial direction (outside in the radial direction of the plunger 140 ). The curvature of the inner locking member 144a is the same as that of the upper end portion 151b of the punch body 150, which will be described in detail later, but when the locking release member 173 resists the urging force of the spring 144b, the two inner locking members 144a are moved toward each other. In the state of being pressed in the approaching direction, the outer peripheries of the two internal locking members 144a become a circle substantially equal to the outer peripheries of the upper end portion 151b of the punch body 150 (see FIG. 15 ).

Next, the process of attaching the male snap button 10 to the cloth 1 using the upper die 130 will be described. In the standby position of FIG. 11 , each inner locking member 144a of the locking part 144 is biased by the spring 144b so that a part of the inner locking member 144a is radially more radial than the outer peripheral surface of the upper end portion 151b of the punch body 150 . It protrudes outward in the direction and fits into the second concave portion 147 of the press-fit body 141 . As a result, the lowering of the punch body 150 is in a state where the press-fit body 141 is lowered integrally by the internal locking member 144 a. In the second embodiment, the inner locking member 144 a is a transmission member that transmits the movement of the punch body 150 to the press-fit body 141 . In addition, in the standby position, the spring 160 is in a compressed state between the upper spring receiving portion 153 of the punch body 150 and the lower spring receiving portion 143 of the press-fit body 141, and the compressed state of the spring 160 is controlled by the internal clamp. The connection between the press-fit body 141 and the punch body 150 by the stop member 144a is maintained. When the drive mechanism is activated from this standby position, the punch body 150 descends, and the press-fit body 141 also descends through the internal locking member 144a accordingly. Then, when the lower end of the slit 148 of the press-fit body 141 reaches the vertical position corresponding to the lock release member 173 , the lock release member 173 starts to enter the slit 148 as shown in FIG. 12 . Fig. 13 is a sectional view taken along line F-F of Fig. 12 . The locking release member 173 that has entered the slit 148 is tilted horizontally as the pushing body 141 further descends, and gradually presses the inner locking member 144a radially inward against the urging force of the spring 144b. Then, as shown in FIG. 14, if the locking release member 173 becomes a horizontal state, as shown in FIG. 15 which is a G-G line sectional view of FIG. The connection of the press-fit body 141 to the punch body 150 is released. Triggered by this action, the spring 160 in the compressed state is extended axially downward, and the press-fit body 141 is lowered at once through the lower spring receiving portion 143 (lower at a high speed). Thus, as shown in FIG. 16 , the button 10 held by the press-fit body 145 of the press-fit body 141 presses the cloth 1 downward, so that the column portion 22 of the mounting part 20 on the lower die 80 penetrates the cloth upward. 1 (through the cloth), the pressing body 141 stops. In addition, the interval C-E in FIG. 16 is larger than the interval C-E in FIGS. 11 , 12 , and 14 by the extension of the spring 160 . During the high-speed descent of the pressing body 141, the punch body 150 also continues to descend at a lower speed. After passing through the cloth, as shown in FIG. The center hole 146 of the lower part is lowered, and the column part 22 of the mounting part 20 is riveted. The punch body 150 gradually compresses the elongated spring 160 while descending to the button installation position. Then, at the button installation position of FIG. 17 , the internal locking part 144a on the side of the punch body 150 corresponds to the second recess 147 of the press-fit body 141 and enters it again, so that the punch body 150 and the press-fit body 141 re-enter. Link, and hold the spring 160 in a compressed state. The punch body 150 reaches the bottom dead center at the button installation position of FIG. 17 . The plunger 140 then returns to the standby position. While the plunger 140 is rising, as shown in FIG. 18 , the inner locking member 144 a fitted in the second recess 147 of the press-fit body 141 moves over the locking member 173 in a horizontal state so as to lift it up. Stop the release part 173.

19 to 25 show still another embodiment (third embodiment) of the upper die of the button attachment device according to the present invention. The upper die 230 of the third embodiment is different from the upper die 130 of the second embodiment in the structure of the locking part and the locking release part, but the other structures are substantially the same. Therefore, in the second embodiment, the original Symbols starting with 100 are replaced with symbols starting with 200, and detailed descriptions are omitted. The lock release portion 270 of the upper die 230 includes a pair of lock release members 273 arranged on both sides in the radial direction of the plunger 240 . The external locking member 273 is disposed outside the press-fit body 241 (outside the outer peripheral surface). Each locking release member 273 is biased radially inward of the plunger 240 by a spring (not shown) serving as an elastic member on the bottom wall 271b of the frame 271 connected to the lower portion of the stationary cylindrical body 231 . A recess 274 recessed radially outward is formed on a rectangular end surface 273a (see FIG. 22 ) on the plunger 240 side (inward in the radial direction) of the locking release member 273 . The depression 274 includes: an upper portion 274a having a larger width (based on the left-right interval of the paper surface of FIG. 22 ); a lower portion 274b having a narrower width than the upper portion 274a; Gradually shrink. The plunger 240 includes: a pressing body 241; a punch body 250; a spring (elastic body) 260, which is arranged on the spring receiving part (second receiving part) 243 below the pressing body 241 and the spring receiving part above the punch body 250. Between the parts 253; and the locking part 244, which is assembled on the punch body 250, and is used to lock the pressing body 241. As shown in FIG. 21 which is a H-H cross-sectional view of FIG. 20 , the locking part 244 includes: a pair of semi-annular inner locking members 244a housed in an annular space 255 formed in the punch supporting part 251; and Two springs (elastic members) 244b are respectively arranged between the two ends of these inner locking members 244a, along the direction that makes the inner locking members 244a perpendicular to the locking diameter direction (based on the paper of FIG. 24 Surface is the up and down direction) to apply force in the direction away from each other. The inner locking member 244 a has the same curvature as the upper end portion 251 b of the punch body 250 . Each inner locking member 244a has a protruding piece 244c protruding toward each unlocking member 273 side in the locking diameter direction at both ends, and is used to enter the recess 274 of each locking releasing member 273 . In the standby position, each inner locking member 244a of the locking part 244 is biased by the spring 244b, so that a part of the inner locking member 244a protrudes outward in the radial direction compared with the outer peripheral surface of the punch body 250, and is aligned with the setting. It fits in the recessed part 247 of the inner peripheral surface 242a of the main case part 242 of the press-fit body 241. In addition, in this embodiment, the recessed part 247 is demonstrated as a 2nd recessed part. By the fitting of the inner locking member 244a and the second concave portion 247, the press body 241 is connected to the punch body 250, and the spring 260 is held in a compressed state between the upper spring receiving portion 253 and the lower spring receiving portion 243. . 19 shows a state in which the plunger 240 descends from the standby position, and the lower end portion of the slit (communication portion) 246 of the press-fit body 241 reaches the position in the vertical direction corresponding to the locking release member 273 . At this point, the locking release member 273 enters the slit 246 of the press-fit body 241 . When the plunger 240 descends further, the inner lock member 244a reaches the vertical position of the lock release member 273 as shown in FIG. 20 . At this time, as shown in FIG. 21 and FIG. 22 which is the I-I cross-sectional view of FIG. 21 , the protruding piece 244c of the inner locking member 244a is accommodated in the upper part 274a of the recess 274 of the locking releasing member 273 . If the plunger 240 further descends from here, the protruding piece 244c of the inner locking member 244a moves from the upper portion 274a of the recess 274 of the locking release member 273 to the middle portion 274c, and is accommodated in 1 as it descends in the middle portion 274c. The interval between the two protruding pieces 244c in each middle portion 274c is gradually narrowed. Accordingly, the distance between the two inner locking members 244a gradually decreases against the urging force of the spring 244b. Then, if the protruding piece 244c moves from the middle inclined portion 274c of the recess 274 to the lower portion 274b, as shown in FIG. 23 and FIG. 24 which is a J-J sectional view of this FIG. The distance between the two internal locking members 244a is also minimized. As a result, the inner locking member 244a is disengaged from the second concave portion 247 of the press-fit body 241 . Thereby, the connection of the press-fit body 241 to the punch body 250 is released, and as shown in FIG. 25 , the spring 260 in the compressed state is extended axially downward, and the press-fit body 241 is lowered at once (high-speed descent). Thereby, similarly to the second embodiment, the cloth can be passed through, and then the caulking work can be performed. In addition, by the elongation of 260, the C-E interval in Fig. 25 is larger than the C-E interval in Figs. 19, 20, and 23 .

As described above, in the present invention, since the cloth can be passed through at a high speed and the riveting can be performed at a low speed, the cloth can be reliably passed through and the load applied to the button can be reduced during the riveting. Therefore, it is possible to achieve thinning of, for example, a resin button compared with conventional products. In addition, in the above-mentioned embodiment, although the example which a male snap button was given as a button was mentioned, it is not limited to this, This invention is applicable also to other types of buttons, such as a female snap button and a decorative button. In addition, metal buttons may be used.

Claims (10)

1. a button side stamp die, described button side stamp die (30,130,230) for make the jut of button installed part (20) (22) through cloth (1) and button (10) hole (15) after and by riveted joint, button (10) is installed on cloth (1) time keep button (10), the feature of described button side stamp die (30,130,230) is to comprise:

Punch body (50,150,250), it moves between position of readiness and the button installation site of being riveted by described jut (22), and for riveting described jut (22);

Press-in body (41,141,241), it accommodates described punch body (50,150,250), by being transmitted the movement of described punch body (50,150,250) by transferring element, can with punch body (50,150,250) equidirectional mobile;

Elastomer (60,160,260), it is configured between first receiving portion (53,153,253) of punch body (50,150,250) and second receiving portion (43,143,243) of press-in body (41,141,241) in described press-in body (41,141,241);

Fastener (70,144,244), described press-in body (41,141,241) engages to maintain the compressive state of described elastomer (60,160,260) by it; And

Locking cancel system, it is for removing the locking of described fastener (70,144,244) to press-in body (41,141,241),

By removing locking with described locking cancel system, the elastomer (60,160,260) of compressive state extends, and described press-in body (41,141,241) is moved to button installation site more at high speed than punch body (50,150,250).

2. button side stamp die as claimed in claim 1, is characterized in that:

Described second receiving portion (43,143,243) of described press-in body (41,141,241) is positioned at the position closer to side, button installation site compared with described first receiving portion (53,153,253) of described punch body (50,150,250).

3. button side stamp die as claimed in claim 1 or 2, is characterized in that:

Described fastener (70) comprising: outside latch for printed circuit (73), and it is configured at the outside of described press-in body (41); Recess (44), it is arranged at press-in body (41), can engage with described outside latch for printed circuit (73); With external resilient members (75), it exerts a force to the side engaged with recess (44) to described outside latch for printed circuit (73),

Engaged with recess (44) by described outside latch for printed circuit (73), the mobile of press-in body (41) stops, and described transferring element is described elastomer (60).

4. button side stamp die as claimed in claim 1 or 2, is characterized in that:

Described fastener (144,244) comprising: inner latch for printed circuit (144a, 244a), and it is assembled in described punch body (150,250); Recess (147,247), it is arranged at press-in body (141,241), can engage with described inner latch for printed circuit (144a, 244a); With inner resilient members (144b, 244b), it exerts a force to the side engaged with recess (147,247) to described inner latch for printed circuit (144a, 244a),

Engaged with recess (147,247) by described inner latch for printed circuit (144a, 244a), press-in body (141,241) links with punch body (150,250) one, and described elastomer (160,260) is maintained at compressive state, described transferring element is described inner latch for printed circuit (144a, 244a).

5. button side stamp die as claimed in claim 3, is characterized in that:

Described locking cancel system comprises the engaging inclined plane (44a) being arranged at described recess (44), with this engaging inclined plane (44a), the outside latch for printed circuit (73) in recess (44) is moved to recess (44) mode outward and plays function.

6. button side stamp die as claimed in claim 4, is characterized in that:

Described locking cancel system comprises: parts (173,273) are removed in locking, and it is configured at the outside of described press-in body (141,241); Interconnecting part (148,246), its ft connection from described press-in body (141,241) is in described recess (147,247); With elastomeric element (175), it removes parts (173,273) to the side force entering interconnecting part (148,246) to described locking, and described locking cancel system enters described interconnecting part (148,246) with described locking releasing parts (173,273) and the inside latch for printed circuit (144a, 244a) in recess (147,247) is moved to recess (147,247) mode outward plays function.

7. button side stamp die as claimed in claim 6, is characterized in that:

Described interconnecting part (148,246) be run through described press-in body (141,241) sidewall and with the gap (148,246) that extends, axis being parallel ground of press-in body (141,241).

8. a button erecting device, described button erecting device (100) make the jut of button installed part (20) (22) through cloth (1) and button (10) hole (15) after and by riveted joint, button (10) is installed on cloth (1) time used, it is characterized in that comprising:

Button side stamp die (30,130,230), it keeps button (10);

Installed part side stamp die (80), it keeps button installed part; And

Driving mechanism, it makes described button side stamp die (30,130,230) move between top dead centre and lower dead center,

Described button side stamp die (30,130,230) comprising:

Punch body (50,150,250), it is driven by described driving mechanism, at the position of readiness corresponding with described top dead centre and corresponding and move between described jut (22) is riveted button installation site with described lower dead center, and for riveting described jut (22);

Press-in body (41,141,241), it accommodates described punch body (50,150,250), by being transmitted the movement of described punch body (50,150,250) by transferring element, can with punch body (50,150,250) equidirectional mobile;

Elastomer (60,160,260), it is configured between first receiving portion (53,153,253) of punch body (50,150,250) and second receiving portion (43,143,243) of press-in body (41,141,241) in described press-in body (41,141,241);

Fastener (70,144,244), described press-in body (41,141,241) engages to maintain the compressive state of described elastomer (60,160,260) by it; With

Locking cancel system, it is for removing the locking of described fastener (70,144,244) to press-in body (41,141,241),

By removing locking with described locking cancel system, the elastomer (60,160,260) of compressive state extends, and described press-in body (41,141,241) is moved to button installation site more at high speed than punch body (50,150,250).

9. button erecting device as claimed in claim 8, is characterized in that:

Described second receiving portion (43,143,243) of described press-in body (41,141,241) is positioned at the position closer to side, button installation site compared with described first receiving portion (53,153,253) of described punch body (50,150,250).

10. a button installation method, it is for being installed on cloth (1) by button (10), and the feature of described button installation method is, comprising:

Button (10) is remained on have the button side stamp die (30,130,230) of punch body (50,150,250) and press-in body (41,141,241), and make the button installed part (20) with jut (22) remain on the operation of installed part side stamp die (80);

Described press-in body (41,141,241) is moved more at high speed than punch body (50,150,250), thus makes the operation of jut (22) through cloth (1) of button installed part (20); And

Utilize the operation that described punch body (50,150,250) is riveted described jut (22).