CN108567204B

CN108567204B - Slider holding device

Info

Publication number: CN108567204B
Application number: CN201710131381.0A
Authority: CN
Inventors: 辻村仁邦
Original assignee: YKK Corp
Current assignee: YKK Corp
Priority date: 2017-03-07
Filing date: 2017-03-07
Publication date: 2021-01-26
Anticipated expiration: 2037-03-07
Also published as: CN108567204A

Abstract

The invention provides a slider holding device capable of holding a pull-tab rotary slider. The slider holding device is provided with slider holding parts (60, 70) for holding a Slider (SL), and the slider holding parts (60, 70) are provided with: a slider pressing part (73) which is slidably provided along the front-rear direction of the Slider (SL) and holds the Slider (SL); and a biasing member (75) that biases the slider pressing portion (73) toward the Slider (SL), wherein the slider pressing portion (73) has: a pressing surface (73a) which is in contact with the front end of the Slider (SL) and holds the Slider (SL); and a cam surface (73b) formed at the upper end of the pressing surface (73a), wherein the cam surface (73b) is formed such that the width in the front-rear direction of the slider pressing portion (73) gradually increases toward the lower side of the slider pressing portion (73).

Description

Slider holding device

Technical Field

The present invention relates to a slider holding device that holds a slider in a slide fastener assembling device, for example.

Background

As a conventional slider for a slide fastener, a pull-tab rotary slider is known which includes a U-shaped guide bar protruding continuously from an upper surface, a front surface, and a lower surface of a slider body, and to which a pull tab is rotatably attached (see, for example, patent document 1).

In addition, conventionally, a slider holding device is known which holds a slider in a slide fastener assembling device, and a slider held in the slider holding device can be penetrated by a fastener chain transferred by a jig (see, for example, patent document 2).

Documents of the prior art

Patent document

Patent document 1: japanese laid-open patent publication No. 2003-093116

Patent document 2: japanese unexamined patent publication Hei 06-181806

Disclosure of Invention

Problems to be solved by the invention

However, the slider holding device described in patent document 2 cannot hold the pull-tab rotary slider described in patent document 1.

The present invention has been made in view of the above-described problems, and an object thereof is to provide a slider holding device capable of holding a pull-tab rotary slider.

Means for solving the problems

The above object of the present invention can be achieved by the following constitution.

(1) A slider holding device that holds a slider in a slide fastener assembly device that attaches the slider to a fastener chain, the slider holding device comprising a slider holding portion that holds the slider, the slider holding portion comprising: a slider pressing portion which is provided slidably in the front-rear direction of the slider and holds the slider; and a force application member that applies a force to the slider pressing portion toward the slider side, the slider pressing portion including: a pressing surface which is in contact with the front end of the slider and holds the slider; and a cam surface formed at an upper end of the pressing surface, the cam surface being formed such that a width in a front-rear direction of the slider pressing portion gradually increases toward a lower side of the slider pressing portion.

(2) The slider holding device according to (1), wherein the slider holding portion is a 1 st slider holding portion for holding a rear portion of the slider and a 2 nd slider holding portion for holding a front portion of the slider, and the 2 nd slider holding portion includes a slider pressing portion and an urging member.

(3) The slider holding device according to (2), wherein the 1 st slider holding portion and the 2 nd slider holding portion are respectively provided with an accommodating recess for supporting a lower surface of the slider.

(4) The slider holding device according to (3), wherein the 1 st slider holding portion is provided with a pull-down mechanism for pulling down a pull-tab of the slider.

(5) The slider holding device according to item (4), wherein the slider pressing portion is made of synthetic resin.

(6) The slider holding device according to (5), wherein the biasing member is a coil spring.

ADVANTAGEOUS EFFECTS OF INVENTION

According to the present invention, there is provided a slider holding portion that holds a slider, the slider holding portion including: a slider pressing portion which is provided slidably in the front-rear direction of the slider and holds the slider; and a force application member that applies a force to the slider pressing portion toward the slider side, the slider pressing portion including: a pressing surface which is in contact with the front end of the slider and holds the slider; and a cam surface formed at an upper end of the pressing surface, the cam surface being formed such that a width in a front-rear direction of the slider pressing portion gradually increases toward a lower side of the slider pressing portion, whereby the pull-tab rotary slider can be held.

Drawings

Fig. 1 is a schematic side view illustrating a slide fastener assembling device to which an embodiment of a slider holding device of the present invention is applied.

Fig. 2 is a schematic plan view of the slide fastener assembling apparatus shown in fig. 1.

Fig. 3 is a perspective view of the slider holding device.

Figure 4 is a side view of the slider retaining device.

Fig. 5 is a plan view of the slider holding device.

Fig. 6 is a sectional view taken along line a-a of fig. 5.

Fig. 7 is a sectional view taken along line B-B of fig. 4.

Fig. 8 is an enlarged sectional view showing a state before the slider is held.

Fig. 9 is an enlarged cross-sectional view showing a state in which the slider contacts the cam surface of the slider pressing portion and the slider pressing portion moves.

Fig. 10 is an enlarged cross-sectional view showing a state where the slider is held.

Fig. 11 is a sectional view showing a state where the tab of the slider is pulled down by the gripper.

Fig. 12 is a surface view illustrating an example of a slide fastener assembled by the slide fastener assembling apparatus.

Description of the reference numerals

10. A zipper assembly device; 50. a slider holding device; 60. a 1 st slider holding part; 62. a slider support member; 62a, a housing recess; 65. a pull-down mechanism; 66. a sliding part; 66a, a fulcrum; 67. a holder; 67a, a locking claw; 67b, a cam surface; 68. a torsion coil spring; 69. a drive device; 70. a 2 nd slider holding part; 71. a pillar portion; 71a, a housing recess; 72. a slider holding mechanism; 73. a slider pressing part; 73a, a pressing surface; 73b, a cam surface; 74. a holder; 75. a coil spring (urging member); c2, chain; SF, a zipper; SL, slider; D. a slider body; d1, a guide bar; d11, arc surface (tip of slider).

Detailed Description

Hereinafter, an embodiment of a slider holding device according to the present invention will be described in detail with reference to the drawings. In the following description, the upper side refers to the upper side with respect to the paper surface of fig. 1, the lower side refers to the lower side with respect to the paper surface of fig. 1, the front side refers to the left side with respect to the paper surface of fig. 1, the rear side refers to the right side with respect to the paper surface of fig. 1, the left side refers to the near side with respect to the paper surface of fig. 1, and the right side refers to the depth side with respect to the paper surface of fig. 1. The front side of the fastener assembling device is also referred to as the upstream side, and the rear side is also referred to as the downstream side. The left-right direction of the fastener assembling device is also referred to as a width direction. The upstream side and the downstream side are based on the transfer direction of the continuous chain, the chain, and the slide fastener.

As shown in fig. 1 and 2, the slide fastener assembly apparatus 10 of the present embodiment includes: a transfer jig 20 that transfers the continuous chain C1; a cutting device 30 for cutting the continuous chain C1 transferred by the transfer jig 20 into a chain C2 of a predetermined length; a slider mounting device 40 that mounts a slider SL to the chain C2 transferred by the transfer jig 20; a stopper mounting device 80 for mounting a stopper P2 on the chain C2 transferred by the transfer jig 20; and a discharge jig 90 that receives the finished slide fastener SF with the upper stopper portion P2 attached thereto from the transfer jig 20 and discharges the slide fastener SF to a discharge portion, not shown. Further, reference symbol L in the drawing denotes a transfer line for transferring the continuous chain C1, the chain C2 of a predetermined length, and the slide fastener SF.

Here, a slide fastener SF assembled by the slide fastener assembling apparatus 10 of the present embodiment will be described. As shown in fig. 12, the slide fastener SF includes: a pair of right and left fastener tapes T; a pair of left and right element rows EL provided at opposite belt side edge portions of the left and right fastener tapes T; a slider SL for engaging and disengaging the left and right element rows EL; an opener P1 attached to one end of each of the left and right element rows EL; and upper stoppers P2 attached to the other end portions of the left and right element rows EL, respectively. In the present embodiment, the upstream side of the slide fastener SF and the chain C2 is the lower side with respect to the paper surface of fig. 12, and the downstream side is the upper side with respect to the paper surface of fig. 12.

The element row EL is formed by injection molding of a synthetic resin in the present embodiment, but is not limited to this, and may be a coil-shaped element row, a zigzag-shaped element row, or a metal element row.

Further, the continuous chain C1 is formed by connecting a plurality of chains C2 to which the opening pieces P1 are previously attached. In the present embodiment, the continuous chain C1 is supplied to the fastener assembling device 10 such that the opener P1 is located on the upstream side. When supplied to the fastener assembly apparatus 10, the continuous chain C1 is in a state where the left and right element rows EL are engaged with each other.

The slider SL is a pull-tab rotary slider, and as shown in fig. 3 and 8, includes: a slider body D having a U-shaped guide bar D1 that continuously protrudes from the upper surface, the front surface, and the lower surface; and a pull tab P rotatably attached to the U-shaped guide bar D1. In the slider SL according to the present embodiment, the upper side refers to the upper side with respect to the paper surface of fig. 8, the lower side refers to the lower side with respect to the paper surface of fig. 8, the front side refers to the right side with respect to the paper surface of fig. 8, and the rear side refers to the left side with respect to the paper surface of fig. 8. The tip end portion of the slider SL in the present embodiment is an arc surface D11 formed at the tip end of the guide lever D1.

As shown in fig. 1 and 2, the transfer jig 20 grips the downstream end of the continuous chain C1 and transfers the continuous chain C1 to the downstream side, and the transfer jig 20 includes: a pair of grippers 21 for gripping the right and left fastener tapes T of the continuous chain C1; and a moving device, not shown, which moves the pair of clamps 21 in the upstream and downstream directions. The pair of grippers 21 is configured to grip the right and left fastener tapes T from the widthwise outer side.

The cutting device 30 includes: a knife section 31 disposed above the transfer line L; and a table portion 32 disposed below the transfer line L. The knife section 31 and the table section 32 are driven up and down by a driving device, not shown. Also, by the upward movement of the table portion 32 and the downward movement of the knife portion 31, the continuous chain C1 is cut into a chain C2 of a predetermined length.

The stopper mounting device 80 includes an upper die 81 disposed above the transfer line L and a lower die 82 disposed below the transfer line L. Then, the upper stopper P2 is attached to the chain C2 by injection molding of synthetic resin.

The discharge jig 90 grips the downstream end of the processed slide fastener SF and transfers the slide fastener SF to a discharge portion, and the discharge jig 90 includes: a gripper 91 that grips the right and left fastener tapes T of the slide fastener SF; a moving device, not shown, which moves the jig 91 in the upstream and downstream directions. The clamp 91 is configured to grip the right and left fastener tapes T from the downstream side.

As shown in fig. 1, the slider mounting device 40 includes: a slider holding device 50 of the present invention, which is disposed below the transfer line L and holds a slider SL; a slider feeding device, not shown, places the slider SL on the upper end of the slider holding device 50 from above. Further, the slider SL is placed on the slider holding device 50 so that the guide bar D1 is on the downstream side. The tab P is disposed in a vertically hanging state by gravity.

As shown in fig. 3 to 6, the slider holding device 50 includes a 1 st slider holding portion 60 and a 2 nd slider holding portion 70 that hold the slider SL, and the 2 nd slider holding portion 70 is attached to the 1 st slider holding portion 60 and disposed on the downstream side of the 1 st slider holding portion 60.

The 1 st slider holding portion 60 includes: a base portion 61 attached to a moving device not shown; and a slider support member 62 attached to an upper end of the base portion 61 and supporting the slider SL. An accommodating recess 62a (see fig. 8) for supporting a rear lower surface of the slider body D is formed in an upper surface of the slider supporting member 62. The receiving recess 62a is formed in a shape surrounding the rear surface and the right and left side surfaces of the rear portion of the slider body D. Further, the slider support member 62 is preferably made of synthetic resin to prevent the slider body D from being damaged.

Further, a guide groove 61a extending in the vertical direction is formed in the upstream surface of the base portion 61, and a pull-down mechanism 65 for pulling down the tab P of the slider SL is provided in the guide groove 61 a. A lid 63 for closing the guide groove 61a is attached to the upstream surface of the base 61. Further, a bottom plate 64 is attached to the lower surface of the base portion 61.

As shown in fig. 6, the pull-down mechanism 65 includes: a slide portion 66 housed in the guide groove 61a of the base portion 61; a clamper 67 swingably attached to an upper end portion of the slide portion 66 via a support shaft 66a, and having a locking claw 67a at the upper end portion thereof to be inserted into an annular hole (hole リンク, japanese) Pa of the pull tab P; a torsion coil spring 68 that urges the holder 67; and a driving device 69 that drives the sliding portion 66 in the up-down direction. The clamper 67 is always biased by the torsion coil spring 68 in a direction to separate the locking pawl 67a from the first slider holding portion 60.

The cam surface 67b that contacts the circular cam follower 63a fixed to the lid 63 is formed on the retainer 67. The cam surface 67b functions as follows: the clamper 67 is moved downward together with the slide portion 66, the cam surface 67b is guided by the cam follower 63a, the clamper 67 is swung toward the 2 nd slider holding portion 70, and the clamper 67 is moved downward in this state. Then, when the clamper 67 swings toward the 2 nd slider holding portion 70, the locking claw 67a of the clamper 67 is inserted into the annular hole Pa of the tab P, and at the same time, the clamper 67 moves downward, whereby the tab P is pulled down and the slider SL is fixed to the 1 st slider holding portion 60 and the 2 nd slider holding portion 70 (see fig. 11).

The driving device 69 includes a cylinder device 69a attached to the lid 63 and a connecting plate 69c attached to the tip end portion of a rod 69b of the cylinder device 69a, and the lower end portion of the slide portion 66 is fixed to the upper surface of the connecting plate 69 c. Then, the rod 69b of the cylinder device 69a advances, the slide portion 66 moves downward, the rod 69b of the cylinder device 69a retracts, and the slide portion 66 moves upward.

As shown in fig. 3 to 6, the 2 nd slider holding portion 70 includes: a column portion 71 attached to a surface of the 1 st slider holding portion 60 on the downstream side of the base portion 61 and supporting the slider SL; and a slider holding mechanism 72 provided at an upper end of the post portion 71 and holding the slider SL. An accommodating recess 71a (see fig. 8) for supporting a front lower surface of the slider body D is formed in an upper surface of the column portion 71. The receiving recess 71a is formed in a shape surrounding the front surface and the right and left side surfaces of the front portion of the slider body D. The post portion 71 is preferably made of synthetic resin to prevent the tab body D from being damaged.

As shown in fig. 5 to 7, the slider holding mechanism 72 includes: a slider pressing portion 73 that holds the slider SL; a holder 74 attached to a downstream side surface of the column portion 71 and holding the slider pressing portion 73; and a coil spring (urging member) 75 disposed between the slider pressing portion 73 and the holder 74, for urging the slider pressing portion 73 toward the slider SL (toward the 2 nd slider holding portion 70).

The slider pressing portion 73 is a substantially cubic member, and is housed in a guide groove 71b formed in the upper surface of the column portion 71 so as to be slidable in the front-rear direction of the slider SL. Further, the movement of the slider pressing portion 73 to the side close to the slider SL is restricted by the step portion 71c formed in the guide groove 71b of the column portion 71, and the position where the slider pressing portion 73 abuts against the step portion 71c is the closest position to the slider SL. Further, the movement of the slider pressing portion 73 to the side separated from the slider SL is restricted by the holder 74, and the position where the slider pressing portion 73 abuts against the holder 74 is the farthest position from the slider SL. Thus, the slider pressing portion 73 is slidably movable between the step portion 71c and the holder 74. Further, the upward movement of the slider pressing portion 73 is restricted by a pair of engaging pieces 74a formed in the holder 74. The pair of engaging pieces 74a function to guide the sliding movement of the tab pressing portion 73. Further, the holder 74 is formed with a spring receiving hole 74b that receives the coil spring 75.

As shown in fig. 8 to 10, the slider pressing portion 73 includes: a pressing surface 73a that contacts the slider SL near the apex of an arc surface D11 that is the tip end portion of the slider SL to hold the slider SL; and a cam surface 73b formed at an upper end of the pressing surface 73a, and contacting a lower curved surface of the arcuate surface D11 of the slider SL to move the slider pressing portion 73 to a side away from the slider SL. Further, the slider pressing portion 73 is preferably made of synthetic resin to prevent the arc surface D11 of the guide lever D1 from being damaged.

The cam surface 73b of the present embodiment is a surface formed such that the width in the front-rear direction of the slider pressing portion 73 gradually increases toward the lower side of the slider pressing portion 73, and is preferably a wedge shape. The cam surface 73b functions as follows: the slider pressing portion 73 is slid in a direction away from the slider SL by being pressed by contact with the lower curved surface of the arcuate surface D11 of the slider SL supplied from above. The pressing surface 73a is a vertical surface. The cam surface 73b is not limited to a wedge shape, and may be an arc surface.

Next, the operation of the slider holding device 50 will be described with reference to fig. 8 to 11.

First, as shown in fig. 8 and 9, the slider SL is fed from above to the receiving recess 62a of the 1 st slider holding portion 60 and the receiving recess 71a of the 2 nd slider holding portion 70 by a slider feeding device not shown, the lower curved surface of the arcuate surface D11 of the slider SL contacts the cam surface 73b of the slider pressing portion 73, and the slider pressing portion 73 is slid in a direction away from the slider SL against the biasing force of the coil spring 75.

Thus, as shown in fig. 10, the slider SL is placed in the

housing recesses

62a, 71a, and is sandwiched between the housing recess 62a of the 1 st slider holding portion 60 and the pressing surface 73a of the slider pressing portion 73 by the urging force of the coil spring 75. Therefore, the movement of the slider SL placed in the

housing recesses

62a, 71a in the front-rear and left-right directions is restricted by the

housing recesses

62a, 71a, and the upward movement (separation) is suppressed by the slider pressing portion 73. When the guide bar D1 of the slider SL is pressed by the slider pressing portion 73, the locking pawl in the slider SL retracts from the inside of the through path through which the fastener elements of the slider pass, and the locking is released.

Next, as shown in fig. 11, when the sliding portion 66 of the pull-down mechanism 65 is pulled down, the clamper 67 swings and the locking claw 67a is inserted into the annular hole Pa of the tab P, and the tab P is pulled down by the locking claw 67a to fix the slider SL to the 1 st slider holding portion 60 and the 2 nd slider holding portion 70.

As described above, the slider holding device 50 according to the present embodiment includes the 1 st slider holding portion 60 and the 2 nd slider holding portion 70 that hold the slider SL, and the 2 nd slider holding portion 70 includes: a slider pressing portion 73 which is provided slidably in the front-rear direction of the slider SL and holds the slider SL; and a coil spring 75 that biases the slider pressing portion 73 toward the slider SL, the slider pressing portion 73 including: a pressing surface 73a that contacts the arc surface D11 of the slider SL to hold the slider SL; and a cam surface 73b formed at an upper end portion of the pressing surface 73a and contacting the arc surface D11 of the slider SL to move the slider pressing portion 73 to a side apart from the slider SL, so that when the slider SL is supplied from above to the 1 st slider holding portion 60 and the 2 nd slider holding portion 70, the arc surface D11 of the slider SL contacts the cam surface 73b to move the slider pressing portion 73, and the arc surface D11 of the slider SL contacts the pressing surface 73a to hold the slider SL by the slider pressing portion 73. Therefore, the pull-tab rotary slider can be held.

Further, according to the slider holding device 50 of the present embodiment, since the slider supporting member 62 of the 1 st slider holding portion 60 includes the receiving recess 62a for supporting the lower surface of the slider SL and the post portion 71 of the 2 nd slider holding portion 70 includes the receiving recess 71a for supporting the lower surface of the slider SL, the movement of the slider SL in the front-rear and left-right directions can be restricted.

Further, according to the slider holding device 50 of the present embodiment, since the 1 st slider holding portion 60 includes the pull-down mechanism 65 for pulling down the pull-tab P of the slider SL, the slider SL can be reliably fixed to the 1 st slider holding portion 60 and the 2 nd slider holding portion 70.

In addition, according to the slider holding device 50 of the present embodiment, since the slider pressing portion 73 is made of synthetic resin, the arcuate surface D11 of the guide lever D1 of the slider SL can be prevented from being damaged.

In addition, according to the slider holding device 50 of the present embodiment, since the biasing member is the coil spring 75, the slider SL can be held without using a driving device. Therefore, the manufacturing cost of the slide fastener assembly apparatus 10 using the slider holding device 50 can be suppressed to a low level.

The present invention is not limited to the devices exemplified in the above embodiments, and can be modified as appropriate within a scope not departing from the gist of the present invention.

For example, in the above embodiment, the urging member is a coil spring, but the present invention is not limited to this, and a driving device such as an air cylinder may be used.

Further, the slider holding device of the above embodiment includes the pull-down mechanism for pulling down the pull-tab, but is not limited thereto, and the pull-down mechanism may not be provided.

In the above-described embodiments, the case where the slider holding device of the present invention is applied to a slide fastener assembling device that linearly transfers a slide fastener chain by a transfer jig has been exemplified, but the present invention is not limited to this, and the slider holding device of the present invention can be applied to any type of slide fastener assembling device that transfers a slide fastener chain by a transfer jig.

In the slide fastener assembling apparatus according to the present embodiment, the number of the transfer jigs is 1, and two or more transfer jigs may be provided.

Alternatively, the discharge jig may be removed and the slide fastener may be discharged by the transfer jig.

Claims

1. A slider holding device (50) which holds a Slider (SL) in a slide fastener assembly device (10) for attaching the Slider (SL) to a fastener chain (C2), the slider holding device (50) being characterized in that,

which comprises a slider holding part (60, 70) for holding the Slider (SL),

the slider holding section (60, 70) is provided with: a slider pressing part (73) which is provided slidably in the front-rear direction of the Slider (SL) and holds the Slider (SL); and a biasing member (75) that biases the slider pressing portion (73) toward the Slider (SL),

the slider pressing part (73) has: a pressing surface (73a) that is in contact with the tip end of the Slider (SL) and holds the Slider (SL); a cam surface (73b) formed at the upper end of the pressing surface (73a), the cam surface (73b) being formed such that the slider pressing portion (73) gradually increases in width in the front-rear direction toward the lower side of the slider pressing portion (73),

the slider holding portions are a 1 st slider holding portion (60) holding a rear portion of the Slider (SL) and a 2 nd slider holding portion (70) holding a front portion of the Slider (SL),

the 2 nd slider holding part (70) is provided with the slider pressing part (73), the biasing member (75), and a column part (71) attached to a surface on the downstream side of the base part (61) of the 1 st slider holding part (60),

the slider pressing portion (73) is housed in a guide groove (71b) formed in the upper surface of the column portion (71).

2. The slider retaining device (50) according to claim 1,

the 1 st slider holding portion (60) and the 2 nd slider holding portion (70) are respectively provided with housing recesses (62a, 71a) for supporting the lower surface of the Slider (SL).

3. The slider retaining device (50) according to claim 2,

the 1 st slider holding section (60) is provided with a pull-down mechanism (65) for pulling down a pull-tab (P) of the Slider (SL).

4. The slider retaining device (50) according to claim 3,

the slider pressing part (73) is made of synthetic resin.

5. The slider retaining device (50) according to claim 4,

the urging member (75) is a coil spring.