CN107847017B

CN107847017B - Fastener stringer, slide fastener, and riveting machine

Info

Publication number: CN107847017B
Application number: CN201580082165.0A
Authority: CN
Inventors: 出村良广
Original assignee: YKK Corp
Current assignee: YKK Corp
Priority date: 2015-08-05
Filing date: 2015-08-05
Publication date: 2020-08-11
Anticipated expiration: 2035-08-05
Also published as: TW201707601A; WO2017022106A1; EP3332664A4; EP3332664A1; EP3332664B1; JPWO2017022106A1; TWI587809B; JP6484717B2; CN107847017A

Abstract

A fastener stringer (50) is provided with: a fastener tape (10) provided with a core thread (16) at a tape side edge portion (15); a fastener element (20) fixed to the tape side edge portion (15); and metal stoppers (30, 30s) fixed to the core thread (16) at positions adjacent to the fastener elements (20). The stoppers (30, 30s) are provided with a 1 st outer surface (31) and a 2 nd outer surface (32) facing opposite sides with a core rope (16) therebetween. A1 st end (38e) of the stop (30, 30s) in the direction along the core rope (16) is provided with: a 1 st inclined surface (41) extending along the core rope (16) to an outer peripheral edge of the 1 st outer surface (31); and a 2 nd inclined surface (42) extending along the wick (16) to an outer periphery of the 2 nd outer surface (32). The thickness (TH38) of the 1 st end (38e) of the stop (30, 30s) provided with the 1 st inclined surface (41) and the 2 nd inclined surface (42) is smaller than the thickness (TH39) of the portion (39) of the stop (30, 30s) other than the 1 st end (38 e).

Description

Fastener stringer, slide fastener, and riveting machine

Technical Field

The present disclosure relates to a fastener stringer, a slide fastener, and a riveting machine. In particular, the present disclosure relates to a fastener stringer having a stopper, or to a slide fastener including the same.

Background

Patent document 1 discloses a stop attached to a tape ridge portion of a slide fastener by caulking. A groove 5 extending in the longitudinal direction of the stop is provided in the continuous portion 4 of the upper and lower leg portions 2, 2 of the stop, and the cross section of the groove 5 is V-shaped as clearly shown in fig. 2 and 3 of the document.

Patent document 2 discloses the following: the upper stopper 10 is provided with a bulge 15 to prevent the slider from coming off the fastener stringer.

Documents of the prior art

Patent document

Patent document 1: japanese Kokoku publication Sho 63-1855

Patent document 2: japanese laid-open patent publication No. 2002-253307

Disclosure of Invention

It is expected that the greater the deformation imparted to the stop, the greater the attachment strength of the stop to the core thread of the tape side edge portion of the fastener tape. However, there are situations where imparting a large deformation to the end stop is not permissible or desirable.

A fastener stringer according to an aspect of the present invention includes:

a fastener tape (10) provided with a core thread (16) at a tape side edge portion (15);

a fastener element (20) fixed to a tape side edge portion (15) of the fastener tape (10); and

a metal stopper (30, 30s) fixed to a core thread (16) of a tape side edge portion (15) of the fastener tape (10) at a position adjacent to the fastener element (20), wherein in the fastener stringer (50),

the stoppers (30, 30s) are provided with a 1 st outer surface (31) and a 2 nd outer surface (32) facing opposite sides with a core rope (16) with side edges (15) therebetween,

a1 st end (38e) of the stop (30, 30s) in the direction along the core rope (16) is provided with: a 1 st inclined surface (41) extending along the core string (16) to the outer periphery of the 1 st outer surface (31) in a manner gradually approaching the core string (16); and a 2 nd inclined surface (42) extending along the core rope (16) to the outer periphery of the 2 nd outer surface (32) in a manner gradually approaching the core rope (16),

the thickness (TH38) of the 1 st end (38e) of the stop (30, 30s) provided with the 1 st inclined surface (41) and the 2 nd inclined surface (42) is smaller than the thickness (TH39) of the portion (39) of the stop (30, 30s) other than the 1 st end (38 e).

In some embodiments, the 1 st end (38e) of the stop (30, 30s) provided with the 1 st inclined surface (41) and the 2 nd inclined surface (42) is an end of the stop (30, 30s) disposed at a position further away from the fastener element (20) along the core string (16).

In several embodiments, the 1 st end (38e) has: a 1 st inclined inner surface (41k) that is inclined in synchronization with the 1 st inclined surface (41); and a 2 nd inclined inner surface (42k) which is inclined in synchronization with the 2 nd inclined surface (42), wherein the 1 st end portion (38e) has edge portions (35m, 35n) which bite into the core rope (16).

In several embodiments, at the 2 nd end (38g) of the stop (30, 30s) along the core rope (16) there is provided: a 3 rd inclined surface (43) extending along the core rope (16) to the outer periphery of the 1 st outer surface (31) in a manner gradually approaching the core rope (16); and a 4 th inclined surface (44) extending along the core string (16) to the outer periphery of the 2 nd outer surface (32) in a form gradually approaching the core string (16),

the thickness (TH38) of the 2 nd end portion (38g) of the stop (30, 30s) provided with the 3 rd inclined surface (43) and the 4 TH inclined surface (44) is smaller than the thickness (TH39) of the intermediate portion (39) of the stop (30, 30s) between the 1 st end portion (38e) and the 2 nd end portion (38g) of the stop (30, 30 s).

In several embodiments, the 2 nd end (38g) has: a 3 rd inclined inner surface (43k) that is inclined in synchronization with the 3 rd inclined surface (43); and a 4 th inclined inner surface (44k) which is inclined in synchronization with the 4 th inclined surface (44), wherein the 2 nd end portion (38g) has edge portions (35p, 35q) which bite into the core rope (16).

In some embodiments, a flat surface (45) is provided between the 1 st inclined surface (41) and the 3 rd inclined surface (43), and a flat surface (46) is provided between the 2 nd inclined surface (42) and the 4 th inclined surface (44).

A slide fastener according to another aspect of the present invention includes:

a pair of fastener stringers (50) equivalent to any of the above-described fastener stringers (50); and

and a zipper slider (60) for opening and closing the pair of zipper fastener stringers (50).

In some embodiments, a pair of fastener stringers (50) are closed by advancing the slider, and stoppers (30, 30s) are provided in front of and adjacent to the fastener elements (20).

A riveting machine according to another aspect of the present invention is the above-described riveting machine (80) for manufacturing a fastener stringer (50),

the riveting machine (80) is provided with: a 1 st pressing part (81) and a 2 nd pressing part (82) for caulking the stoppers (30, 30s) to the core rope (16),

the 1 st pressing part (81) is provided with an inclined surface for forming the 1 st inclined surface (41) of the stop (30, 30s),

the 2 nd pressing part (82) is provided with an inclined surface for forming the 2 nd inclined surface (42) of the stop (30, 30 s).

ADVANTAGEOUS EFFECTS OF INVENTION

According to one aspect of the present invention, it is possible to avoid or reduce a relatively large deformation of the stopper required to ensure sufficient attachment strength of the stopper to the core rope with the side edge portion.

Drawings

Fig. 1 is a schematic partial front view of a slide fastener according to embodiment 1 of the present invention.

Fig. 2 is a schematic partial front view of a slide fastener according to embodiment 1 of the present invention, showing elements arranged in a slider.

Fig. 3 is a schematic partial front view of a slide fastener according to embodiment 1 of the present invention, showing a state of a stop arranged in a slider.

Fig. 4 is a schematic perspective view of a stopper included in a fastener stringer according to embodiment 1 of the present invention, and a core thread of a tape side edge portion of the fastener tape is not shown for convenience of illustration.

Fig. 5 is a schematic cross-sectional view of a stopper included in a fastener stringer according to embodiment 1 of the present invention, and schematically shows a cross-sectional structure along v (a) -v (a) in fig. 4 in fig. 5 (a), and a cross-sectional structure along v (b) -v (b) in fig. 4 in fig. 5 (b).

Fig. 6 is a schematic cross-sectional view of a stopper included in a fastener stringer according to embodiment 1 of the present invention, schematically showing a cross-sectional configuration along VI-VI of fig. 4. Fig. 6 also shows a cross-sectional structure of the fastener element adjacent to the stop.

Fig. 7 is a schematic perspective view showing a structure of a fastener stringer according to embodiment 1 of the present invention before caulking of a stopper.

Fig. 8 is a schematic view showing a riveting machine used for manufacturing a fastener stringer according to embodiment 1 of the present invention, and shows a state in which a stopper is held between the 1 st pressing portion and the 2 nd pressing portion.

Fig. 9 is a schematic cross-sectional view of a riveting machine used for manufacturing a fastener stringer according to embodiment 1 of the present invention, schematically showing a cross-sectional configuration along IX-IX in fig. 8. A comparison between fig. 9 (a) and 9 (b) shows a case where the proper alignment of the stop in the riveting machine is ensured.

Fig. 10 is a schematic perspective view of a stop according to a comparative example of the present invention.

Fig. 11 is a schematic cross-sectional view of a riveting machine used for manufacturing a fastener stringer according to a comparative example of the present invention. Fig. 11 is a schematic cross-sectional view corresponding to fig. 9.

Fig. 12 is a schematic cross-sectional view of a stop included in a fastener stringer according to embodiment 2 of the present invention, and also shows a cross-sectional structure of a fastener element adjacent to the stop.

Fig. 13 is a schematic perspective view of a stop according to still another comparative example of the present invention.

Fig. 14 is a schematic partial perspective view of the rear end of fig. 1.

Detailed Description

Non-limiting exemplary embodiments of the present invention will be described below with reference to the accompanying drawings. The features included in the 1 or more embodiments and embodiments disclosed are not independent of each other. Those skilled in the art can combine the embodiments and/or the features without undue explanation, and can understand that complementary effects are brought about by the combination. The overlapping description between the embodiments is omitted in principle. The description of the invention is mainly for the purpose of referring to the drawings, and may be simplified for convenience of drawing.

In the following description, the front-back direction coincides with the moving direction of the slider for a slide fastener. By the forward movement of the slider, the pair of left and right fastener stringers are closed, and the pair of left and right fastener elements are engaged with each other. By the retraction of the slider, the pair of left and right fastener stringers are opened, and the engagement of the pair of left and right fastener elements is released. The up-down direction is a direction orthogonal to the front-rear direction. The vertical direction is equivalent to a direction perpendicular to the upper blade or the lower blade of the slider, a direction in which the coupling post of the slider extends, or a direction perpendicular to the main surface of the fastener tape. The left-right direction is a direction orthogonal to the front-back direction and the up-down direction.

< embodiment 1 >

Embodiment 1, which is one of several exemplary embodiments of the present invention, will be described with reference to fig. 1 to 11. FIG. 1 is a schematic partial front view of a slide fastener. Fig. 2 is a schematic partial front view of the slide fastener, showing a state in which elements are disposed in the slider. Fig. 3 is a schematic partial front view of the slide fastener, showing a state of a stop arranged in the slider. Fig. 4 is a schematic perspective view of a stopper included in a fastener stringer, and a core thread of a tape side edge portion of the fastener tape is not shown for convenience of illustration. Fig. 5 is a schematic cross-sectional view of a stop, and fig. 5 (a) schematically shows a cross-sectional structure along v (a) -v (a) in fig. 4, and fig. 5 (b) schematically shows a cross-sectional structure along v (b) -v (b) in fig. 4. Fig. 6 is a schematic cross-sectional view of a stopper included in a fastener stringer, schematically showing a cross-sectional structure taken along VI-VI in fig. 4. Fig. 6 also shows a cross-sectional structure of the fastener element adjacent to the stop. Fig. 7 is a schematic perspective view showing a structure of a fastener stringer before caulking of a stopper included in the fastener stringer. Fig. 8 is a schematic view showing a riveting machine used for manufacturing a fastener stringer, and shows a state in which a stopper is held between the 1 st pressing portion and the 2 nd pressing portion. Fig. 9 is a schematic cross-sectional view of a riveting machine used for manufacturing a fastener stringer, schematically showing a cross-sectional configuration along IX-IX of fig. 8. A comparison between fig. 9 (a) and 9 (b) shows a case where the proper alignment of the stop in the riveting machine is ensured. Fig. 10 is a schematic perspective view of a stop according to a comparative example. Fig. 11 is a schematic cross-sectional view of a riveting machine used for manufacturing a fastener stringer of a comparative example. Fig. 11 is a schematic cross-sectional view corresponding to fig. 9.

As shown in fig. 1 to 3, slide fastener 70 includes: a pair of left and right fastener stringers 50; and a zipper slider 60 for opening and closing the pair of right and left fastener stringers 50. Each fastener stringer 50 includes a fastener tape 10 elongated in the front-rear direction, fastener elements 20 arranged in the front-rear direction, and

stoppers

30 and 30s provided adjacent to the fastener elements 20. The left and right fastener elements 20 are engaged by the forward movement of the fastener slider 60, and the engagement of the left and right fastener elements 20 is released by the backward movement of the fastener slider 60. As shown in fig. 3, the stop 30 is housed in the fastener slider 60, and the advance of the fastener slider 60 is prevented. The stop 30 is the leading stop and the stop 30s is the trailing stop.

The zipper slider 60 includes an upper blade 61, a lower blade 62, and a coupling post 63. The upper blade 61 and the lower blade 62 are disposed opposite to each other with a fixed interval therebetween. The front end of the upper blade 61 and the front end of the lower blade 62 are connected by a connecting column 63. A pair of left and right front openings are provided on the left and right of the coupling post 63, and the fastener element 20 enters the fastener slider 60 through the pair of left and right front openings, and the fastener element 20 exits the fastener slider 60 through the pair of left and right front openings to the outside of the fastener slider 60. At least one of the upper blade 61 and the lower blade 62 is provided with a pair of left and right flange portions 64. Element passages are defined between the left and right flange portions 64 and the connecting posts 63. A Y-shaped element passage is defined in the fastener slider 60. The zipper slider 60 may be made of metal or resin. A tab attaching post 65 is provided on the upper blade 61 of the slide fastener slider 60, and a tab 66 is attached to the tab attaching post 65.

The pair of right and left fastener tapes 10 have respective tape side edge portions 15 facing the other fastener tape 10, and the tape side edge portions 15 extend in the longitudinal direction of the fastener tapes 10, directly in the front-rear direction. The belt side edge portion 15 is provided with a core rope 16. The core thread 16 extends in the longitudinal direction of the fastener tape 10, directly in the front-rear direction, similarly to the tape side edge portion 15. In the illustrated exemplary embodiment, the core string 16 is provided over the entire belt side edge portion 15 in the front-rear direction. In other embodiments, the core rope 16 is provided only in a partial region of the belt side edge portion 15 in the front-rear direction, and is not provided over the entire region.

In some embodiments, the fastener tape 10 is a flexible cloth woven with warp and weft, and has an upper surface and a lower surface, and thus its thickness is defined. The fastener tape 10 has a tape main body portion 14 and tape side edge portions 15, and a core thread 16 is provided on the tape side edge portions 15. The core string 16 includes 1 or more or two or more threads extending in the front-rear direction, and is fixed to the belt side edge portion 15 by sewing or the like. The core thread 16 includes an upper core thread 16m protruding upward from the upper surface of the fastener tape 10 and a lower core thread 16n protruding downward from the lower surface of the fastener tape 10.

In the illustrated exemplary embodiment, the fastener element 20 is a metal element. The fastener elements 20 are arranged at regular intervals in the front-rear direction along the tape side edge portion 15 of the fastener tape 10, directly along the core thread 16. In another embodiment, the fastener element 20 is a coil element in which a monofilament is wound in a spiral shape, and is sewn to the tape side edge portion 15 of the fastener tape 10. In some embodiments, the core strand 16 is disposed in the coil element, and in other embodiments, the core strand 16 is not disposed in the coil element. In another embodiment, the fastener element 20 is a resin element.

The stop 30 is a metal stop, and is fixed to the core thread 16 of the tape side edge portion 15 of the fastener tape 10 by caulking. As shown in fig. 4 to 6, the stop 30 is configured to sandwich the core 16 of the tape side edge portion 15 of the fastener tape 10, and directly, the stop 30 has a 1 st leg portion 35 on the upper surface side of the fastener tape 10, a 2 nd leg portion 36 on the lower surface side of the fastener tape 10, and a coupling portion 37 coupling the 1 st leg portion 35 and the 2 nd leg portion 36. The 1 st leg 35 contacts the upper core 16m of the belt side edge 15, and the 2 nd leg 36 contacts the lower core 16n of the belt side edge 15.

By sandwiching the core 16 of the tape side edge portion 15 of the fastener tape 10 between the 1 st leg portion 35 and the 2 nd leg portion 36, the fixing of the stop 30 to the core 16 of the tape side edge portion 15 of the fastener tape 10 is ensured. The 1 st leg 35 of the stop 30 may be referred to as the upper leg and the 2 nd leg 36 of the stop 30 may be referred to as the lower leg.

The coupling portion 37 is provided outwardly of the fastener tape as compared with the 1 st leg portion 35 and the 2 nd leg portion 36. The fastener tape outer direction is a direction from the surface of the fastener tape toward the outer region of the fastener tape, and is a direction from the surface of the fastener tape to the outer region of the fastener tape across the core string, for example. The 1 st leg portion 35 and the 2 nd leg portion 36 are provided inside the fastener tape as compared with the coupling portion 37. The fastener tape inside is a direction from an outer region of the fastener tape toward a face of the fastener tape, and is a direction from the outer region of the fastener tape across the core thread toward the face of the fastener tape, for example.

The connecting portion 37 is disposed more inward in the left-right direction than the 1 st leg portion 35 and the 2 nd leg portion 36. The 1 st leg portion 35 and the 2 nd leg portion 36 are disposed more outward in the left-right direction than the connection portion 37. The left-right direction inner side and outer side are directions that are understood with reference to a pair of left and right fastener stringers 50. The left and right fastener stringers 50 in the closed state can be explained as follows. The left-right direction inner side is a direction toward the left and right element rows in the engaged state in the left-right direction. The left-right direction outer side is a direction away from the left and right element rows in the engaged state in the left-right direction.

As schematically shown in fig. 7, the interval between the 1 st leg portion 35 and the 2 nd leg portion 36 of the stopper 30 before plastic deformation is sufficiently secured, and the core rope 16 with the side edge portion 15 can be easily inserted into the space between the 1 st leg portion 35 and the 2 nd leg portion 36. In a state where the core string 16 is disposed in the space between the 1 st leg portion 35 and the 2 nd leg portion 36, the end stop 30 is plastically deformed so that the interval between the 1 st leg portion 35 and the 2 nd leg portion 36 is reduced.

The stopper 30 has a 1 st outer surface 31 and a 2 nd outer surface 32 intersecting the up-down direction. The 1 st outside surface 31 is located on the same side as the upper surface of the fastener tape 10 in the up-down direction, and the 2 nd outside surface 32 is located on the same side as the lower surface of the fastener tape 10 in the up-down direction. The 1 st outer surface 31 and the 2 nd outer surface 32 face opposite sides in the vertical direction with the belt side edge 15 and the core rope 16 interposed therebetween. The 1 st outer surface 31 and the 2 nd outer surface 32 have a width in the left-right direction and a length in the front-rear direction. The 1 st outer surface 31 and the 2 nd outer surface 32 extend in the front-rear direction so as to have a substantially constant width, respectively.

The core string 16 with the side edge portion 15 is disposed between the 1 st outer surface 31 and the 2 nd outer surface 32. The thickness TH30 of the stop 30 is defined by the 1 st outer surface 31 and the 2 nd outer surface 32. The 1 st outer surface 31 and the 2 nd outer surface 32 occupy rectangular regions in front view as shown in fig. 1 to 3. In other words, the outer peripheries of the 1 st outer surface 31 and the 2 nd outer surface 32 extend in a manner to draw a rectangle. In other embodiments, the 1 st outer surface 31 and the 2 nd outer surface 32 each have a different front view shape from the illustrated front view shape. The 1 st outer surface 31 may be referred to as an upper surface, and the 2 nd outer surface 32 may be referred to as a lower surface.

The stopper 30 has a connecting surface 33 extending in the vertical direction and connecting the 1 st outer surface 31 and the 2 nd outer surface 32. The coupling surface 33 is provided outside the fastener tape more than the core thread 16 of the fastener tape 10. The connecting surface 33 connects outer peripheral edges of the 1 st outer surface 31 and the 2 nd outer surface 32 on the inner sides in the left-right direction. The connection surface 33 has a width in the vertical direction and a length in the front-rear direction. The connection surface 33 extends in the front-rear direction so as to have a fixed width in the up-down direction. The connection surface 33 is oriented so as to intersect or be orthogonal to the left-right direction. The coupling surface 33 is a surface that can be brought into contact with the coupling post 63 of the fastener slider 60.

The stopper 30 has an opposite surface 34 on the opposite side of the connection surface 33 in the left-right direction. The opposing surface 34 is provided inward of the fastener tape as compared to the core 16 of the fastener tape 10. The opposing face 34 is separated by the zipper strip 10. The opposite surface 34 is oriented so as to intersect or be orthogonal to the left-right direction. The opposite face 34 is on the fastener tape 10, unlike the coupling face 33.

In detail, the opposite face 34 of the stop 30 comprises: a top surface 34m of the 1 st leg portion 35 extending inward of the fastener tape from the coupling portion 37; and a top surface 34n of the 2 nd leg portion 36 extending inward of the fastener tape from the coupling portion 37, the top surface 34m of the 1 st leg portion 35 being oriented substantially perpendicularly with respect to the upper surface of the fastener tape, and the top surface 34n of the 2 nd leg portion 36 being oriented substantially perpendicularly with respect to the lower surface of the fastener tape.

The stopper 30 has a 1 st end surface 301 and a 2 nd end surface 302 extending in the up-down direction and connecting the 1 st outer surface 31 and the 2 nd outer surface 32, and the 1 st end surface 301 and the 2 nd end surface 302 are oriented so as to face in opposite directions to each other in the front-rear direction. The 1 st end surface 301 and the 2 nd end surface 302 are provided so as to intersect with the core thread 16 of the fastener tape 10. The 1 st end surface 301 may be referred to as a front end surface, and the 2 nd end surface 302 may be referred to as a rear end surface. The 1 st end surface 301 connects the outer peripheral edge on the front side of the 1 st outer surface 31 and the outer peripheral edge on the front side of the 2 nd outer surface 32. The 2 nd end surface 302 connects an outer peripheral edge on the rear side of the 1 st outer surface 31 and an outer peripheral edge on the rear side of the 2 nd outer surface 32.

The 1 st outer surface 31 is a surface that spans the 1 st leg 35 and the coupling portion 37. Similarly, the 2 nd outer surface 32 is a surface that spans the 2 nd leg portion 36 and the coupling portion 37. The connection surface 33 is a side surface of the coupling portion 37. The connecting surface 33 of the stop 30 is a surface that faces another stop 30 in the set, and may also be referred to as an opposing surface.

The stop 30 has two end portions 38, a 1 st end portion 38e and a 2 nd end portion 38g, in a direction along the core rope 16, directly in the front-rear direction, and has an intermediate portion 39 between the two end portions 38. The 1 st end 38e may be referred to as a front end, and the 2 nd end 38g may be referred to as a rear end. The 1 st end 38e of the stop 30 is disposed farther from the fastener element 20 than the 2 nd end 38 g. The 2 nd end 38g of the stop 30 is disposed closer to the fastener element 20 than the 1 st end 38e, and is adjacent to the fastener element 20.

In a non-limiting example, the length L38e along the core rope 16 of the 1 st end 38e, the length L38g along the core rope 16 of the 2 nd end 38g, and the length L39 along the core rope 16 of the intermediate portion 39 are as follows. L38 e-1.43 mm, L38 g-1.43 mm, L39-0.94 mm. At this point, the length L30 of the stop 30 along the core rope 16 is 3.8 mm. In several embodiments, L38e > L39 is satisfied, and L38g > L39 is satisfied. This can ensure a good balance between the appearance of the stop 30 and the strength of attachment of the stop 30. In some embodiments, the length L39 of the intermediate portion 39 is approximately 25% to 40% of the length L30 of the stop 30. Stated another way, in some embodiments, L39/L30 × 100 is 25 to 40. This can ensure a good balance between the appearance of the stop 30 and the strength of attachment of the stop 30.

In the present embodiment, the 1 st end 38e of the stop 30 is provided with: a 1 st inclined surface 41 extending along the core rope 16 to an outer peripheral edge of the 1 st outer surface 31 on the front side in a manner gradually approaching the core rope 16; and a 2 nd inclined surface 42 extending along the core rope 16 to an outer peripheral edge of the 2 nd outer surface 32 on the front side in a manner gradually approaching the core rope 16. In the illustrated example, the slopes of the 1 st inclined surface 41 and the 2 nd inclined surface 42 are equal to each other. In the stop 30 provided with the 1 st inclined surface 41 and the 2 nd inclined surface 42, the thickness TH38 of the 1 st end portion 38e at the front end portion of the 1 st end portion 38e is smaller than the thickness of the portion of the stop 30 other than the 1 st end portion 38e, and in the example of the drawing, is smaller than the thickness TH39 of the intermediate portion 39. Thus, sufficient attachment strength of the end stop 30 to the core rope 16 can be ensured without causing substantial plastic deformation of the end stop 30.

Further, the core string 16 with the side edge portion 15 is disposed between the 1 st inclined surface 41 and the 2 nd inclined surface 42. Further, the vertical interval between the 1 st inclined surface 41 and the 2 nd inclined surface 42 is gradually narrowed in accordance with the extension of the 1 st inclined surface 41 toward the outer peripheral edge of the 1 st outer surface 31 and the extension of the 2 nd inclined surface 42 toward the outer peripheral edge of the 2 nd outer surface 32. The 1 st inclined surface 41 of the 1 st outer surface 31 extends in the front-rear direction from the side away from the fastener element 20 to the outer peripheral edge of the 1 st outer surface 31. Further, the 2 nd inclined surface 42 of the 2 nd outer surface 32 extends in the front-rear direction from the side away from the fastener element 20 to the outer peripheral edge of the 2 nd outer surface 32. The thickness TH30 of the stop 30 gradually decreases from the intermediate portion 39 toward the front end of the 1 st end 38e, and therefore, the appearance thereof is not impaired.

The 1 st end 38e of the stop 30 provided with the 1 st inclined surface 41 and the 2 nd inclined surface 42 is an end of the stop 30 disposed further apart from the fastener element 20 along the core string 16. Thus, the stop 30 can sufficiently withstand the force received from the fastener slider 60 while stopping the advance of the fastener slider 60.

As shown in fig. 6, the 1 st end 38e has: a 1 st inclined inner surface 41k inclined in synchronization with the 1 st inclined surface 41; and a 2 nd inclined inner surface 42k inclined in synchronization with the 2 nd inclined surface 42. Thus, the 1 st end portion 38e has a 1 st edge portion 35m and a 2 nd edge portion 35n that bite into the wick 16. The 1 st leg portion 35 has a 1 st edge portion 35m biting into the upper wick 16m in correspondence with the 1 st inclined surface 41 and the 1 st inclined inner surface 41k, and similarly, the 2 nd leg portion 36 has a 2 nd edge portion 35n biting into the lower wick 16n in correspondence with the 2 nd inclined surface 42 and the 2 nd inclined inner surface 42 k. Due to the 1 st edge portion 35m and the 2 nd edge portion 35n, the interval between the front end portion 35e of the 1 st leg portion 35 and the front end portion 36e of the 2 nd leg portion 36 is reduced. The 1 st inclined inner surface 41k of the leading end portion 35e of the 1 st leg portion 35 is a contact surface with the core rope 16. The 2 nd inclined inner surface 42k of the tip portion 36e of the 2 nd leg portion 36 is a contact surface with the core rope 16.

Further, although not necessarily limited thereto, in the present embodiment, the 2 nd end 38g of the stopper 30 is provided with: a 3 rd inclined surface 43 extending along the core rope 16 to the outer periphery of the 1 st outer surface 31 on the rear side thereof so as to gradually approach the core rope 16; and a 4 th inclined surface 44 extending along the core rope 16 to the outer periphery of the 2 nd outer surface 32 on the rear side in a manner gradually approaching the core rope 16. In the illustrated example, the slopes of the 3 rd inclined surface 43 and the 4 th inclined surface 44 are equal to each other. In the stopper 30 provided with the 3 rd inclined surface 43 and the 4 TH inclined surface 44, the thickness TH38 of the 2 nd end portion 38g at the rear end portion of the 2 nd end portion 38g is smaller than the thickness TH39 of the intermediate portion 39 between the 1 st end portion 38e and the 2 nd end portion 38 g. This makes it possible to secure the stopper 30 more sufficiently to the core rope 16 and to ensure a front-rear symmetrical appearance of the stopper 30.

Further, the core string 16 with the side edge portion 15 is disposed between the 3 rd inclined surface 43 and the 4 th inclined surface 44. The vertical interval between the 3 rd inclined surface 43 and the 4 th inclined surface 44 is gradually narrowed in correspondence to the extension of the 3 rd inclined surface 43 toward the outer peripheral edge of the 1 st outer surface 31 and the extension of the 4 th inclined surface 44 toward the outer peripheral edge of the 2 nd outer surface 32. The 3 rd inclined surface 43 extends to the outer peripheral edge of the 1 st outer surface 31 toward the one side of the fastener element 20. The 4 th inclined surface 44 extends to the outer peripheral edge of the 2 nd outer surface 32 toward the side of the fastener element 20. The thickness TH30 of the stop 30 gradually decreases from the intermediate portion 39 toward the rear end of the 2 nd end 38g, and therefore, the appearance thereof is not impaired.

In the case where the stop 30 is provided with the 3 rd inclined surface 43 and the 4 TH inclined surface 44 in addition to the 1 st inclined surface 41 and the 2 nd inclined surface 42 as described above, the respective thicknesses TH38 of both end portions 38 of the stop 30 in the front-rear direction along the core rope 16 are smaller than the thickness TH39 of the intermediate portion 39 between the both end portions 38. Sufficient attachment strength of the end stop 30 to the core rope 16 can be ensured without causing substantial plastic deformation of the end stop 30.

As shown in fig. 6, the 2 nd end 38g has: a 3 rd inclined inner surface 43k inclined in synchronization with the 3 rd inclined surface 43; and a 4 th inclined inner surface 44k inclined in synchronization with the 4 th inclined surface 44. Thus, the 1 st end portion 38e has a 3 rd edge portion 35p and a 4 th edge portion 35q which bite into the wick 16. The 1 st leg portion 35 has a 3 rd edge portion 35p biting into the upper wick 16m in correspondence with the 3 rd inclined surface 43 and the 3 rd inclined inner surface 43k, and similarly, the 2 nd leg portion 36 has a 4 th edge portion 35q biting into the lower wick 16n in correspondence with the 4 th inclined surface 44 and the 4 th inclined inner surface 44 k. Due to the 3 rd and 4

th edge portions

35p and 35q, the interval between the rear end portion 35g of the 1 st leg portion 35 and the rear end portion 36g of the 2 nd leg portion 36 is reduced. The 3 rd inclined inner surface 43k of the rear end portion 35g of the 1 st leg portion 35 is a contact surface with the core rope 16. The 4 th inclined inner surface 44k of the rear end portion 36g of the 2 nd leg portion 36 is a contact surface with the core rope 16.

The 1 st leg 35 has an intermediate inner surface 45k provided between the 1 st inclined inner surface 41k and the 3 rd inclined inner surface 43k described above at the front end portion 35e and the rear end portion 35g of the 1 st leg 35. The intermediate inner surface 45k is also in contact with the upper core rope 16 m. The 2 nd leg 36 has an intermediate inner surface 46k provided between the above-described 2 nd and 4 th inclined

inner surfaces

42k, 44k of the 2 nd leg front and

rear end portions

36e, 36 g. The intermediate inner surface 46k is also in contact with the lower wick 16 n. The inner surface of the 1 st leg 35 and the inner surface of the 2 nd leg 36 are opposed to each other with the core string 16 interposed therebetween. The inner surface of the 1 st leg 35 may also be referred to as the 1 st inner surface and the inner surface of the 2 nd leg 36 may be referred to as the 2 nd inner surface.

In the illustrated exemplary embodiment, the stopper 30 includes all of the 1 st inclined surface 41, the 2 nd inclined surface 42, the 3 rd inclined surface 43, and the 4 th inclined surface 44. However, in another embodiment, it is conceivable to use only one of the 1 st group including the 1 st inclined surface 41 and the 2 nd inclined surface 42 and the 2 nd group including the 3 rd inclined surface 43 and the 4 th inclined surface 44. That is, two groups need not be employed. In another embodiment, the 1 st inclined surface 41 and the 2 nd inclined surface 42 are omitted, and the 3 rd inclined surface 43 and the 4 th inclined surface 44 are used. In this case, since only the total of two inclined surfaces, i.e., the 3 rd inclined surface 43 and the 4 th inclined surface 44, are provided on the stopper 30, the "3 rd" inclined surface is referred to as the "1 st" inclined surface, and the "4 th" inclined surface is referred to as the "2 nd" inclined surface.

As can be understood from the schematic view of fig. 6, the 1 st outer surface 31 of the stop 30 is provided with the 1 st inclined surface 41, and accordingly, the front end portion 35e of the 1 st leg portion 35 is inclined forward and downward. The 2 nd outer surface 32 of the stop 30 is provided with a 2 nd inclined surface 42, and accordingly, the tip end portion 36e of the 2 nd leg portion 36 is inclined forward and upward. The distance between the tip end 35e of the 1 st leg 35 and the tip end 36e of the 2 nd leg 36 is sufficiently narrow, and the core rope 16 is strongly sandwiched therebetween.

As can be understood from the schematic view of fig. 6, the 1 st outer surface 31 of the stopper 30 is provided with the 3 rd inclined surface 43, and accordingly, the rear end portion 35g of the 1 st leg portion 35 is inclined rearward and downward. The 2 nd outer surface 32 of the stop 30 is provided with a 4 th inclined surface 44, and accordingly, the rear end portion 36g of the 2 nd leg portion 36 is inclined rearward and upward. The distance between the rear end 35g of the 1 st leg 35 and the rear end 36g of the 2 nd leg 36 is sufficiently narrowed, and the core rope 16 is strongly sandwiched therebetween.

An intermediate portion 35f is provided between the front end portion 35e and the rear end portion 35g of the 1 st leg portion 35, and an intermediate portion 36f is provided between the front end portion 36e and the rear end portion 36g of the 2 nd leg portion 36. The interval between the intermediate portion 35f of the 1 st leg portion 35 and the intermediate portion 36f of the 2 nd leg portion 36 is ensured to be relatively large.

The stop 30 has a minimum thickness TH30min at the 1 st end 38e and the 2 nd end 38 g. The stop 30 has a maximum thickness TH30max at a middle portion 39 between the 1 st end 38e and the 2 nd end 38 g.

As shown in fig. 6, the stop 30 is disposed adjacent to the fastener element 20. In the illustrated exemplary embodiment, the stop 30 is provided in the vicinity of the tip of the fastener element row. Other embodiments are also conceivable in which the stop 30 is provided in the vicinity of the rear end of the fastener element row. The fastener element 20 is a metal element as described above. As will be immediately understood by those skilled in the art, the fastener element 20 includes the 1 st leg portion 21, the 2 nd leg portion 22, and a coupling portion for coupling the 1 st leg portion 21 and the 2 nd leg portion 22, similarly to the stop 30. The core rope 16 is disposed between the 1 st outer surface 21m of the 1 st leg portion 21 and the 2 nd outer surface 22m of the 2 nd leg portion 22. The thickness TH20 of the fastener element 20 is defined by the 1 st outer surface 21m of the 1 st leg portion 21 and the 2 nd outer surface 22m of the 2 nd leg portion 22.

In several embodiments, the minimum thickness TH30min at the 1 st end 38e and the 2 nd end 38g of the stop 30 described above is less than the thickness TH20 of the fastener element 20. In several embodiments, the minimum thickness TH30min at the 1 st end 38e and the 2 nd end 38g of the stop 30 is equal to the thickness TH20 of the fastener element 20.

The fastener element 20 has a base portion inside the fastener tape and an engaging head portion outside the fastener tape, and a cross-sectional configuration of the base portion of the fastener element 20 is illustrated in fig. 6.

As can be understood with reference to fig. 4, the 1 st outer surface 31 of the stopper 30 is not formed with relatively large irregularities and is mainly composed of an inclined surface and a flat surface. The 1 st outer surface 31 is provided with the 1 st inclined surface 41 and the 3 rd inclined surface 43, and a flat surface 45 is provided between the 1 st inclined surface 41 and the 3 rd inclined surface 43. The inclined surface 471 and the inclined surface 473 are provided at positions outside the fastener tape from the 1 st inclined surface 41, the flat surface 45, and the 3 rd inclined surface 43. The inclined surface 471 is an inclined surface steeper than the inclined surface 473. The inclined surface 473 is inclined slowly and is substantially flat in several forms. In some embodiments, the boundary between the inclined surface 471 and the inclined surface 473 cannot be clearly seen. The 2 nd outer surface 32 is provided with the 2 nd inclined surface 42 and the 4 th inclined surface 44, and a flat surface 46 is provided between the 2 nd inclined surface 42 and the 4 th inclined surface 44. The inclined surface 472 and the inclined surface 474 are provided at positions further toward the outside of the fastener tape than the 2 nd inclined surface 42, the flat surface 46, and the 4 th inclined surface 44. The inclined surface 472 is an inclined surface steeper than the inclined surface 474. The angled surface 474 is gently sloped and in several configurations is substantially flat. In the illustrated example, the

flat surfaces

45 and 46 are surfaces parallel to the fastener tape 10.

In the present embodiment, the attachment strength of the end stop 30 to the core rope 16 is ensured without relying on providing the end stop 30 with irregularities. The present embodiment secures the attachment strength of the end stop 30 to the core rope 16 by means of the following clamping: the core rope 16 is clamped by the 1 st leg 35 and the 2 nd leg 36 at the 1 st end 38e of the stop 30 based on the formation of the 1 st inclined surface 41 and the 2 nd inclined surface 42, and/or the core rope 16 is clamped by the 1 st leg 35 and the 2 nd leg 36 at the 2 nd end 38g of the stop 30 based on the formation of the 3 rd inclined surface 43 and the 4 th inclined surface 44. The end stop 30 is not provided with relatively large unevenness, so that the beauty of the end stop 30 is ensured. By providing the set of the 1 st inclined surface 41 and the 2 nd inclined surface 42, or the set of the 3 rd inclined surface 43 and the 4 th inclined surface 44 to the stop 30, self-alignment of the stop 30 before caulking in the caulking machine is also facilitated when the stop 30 is attached to the core rope 16 by caulking as will be discussed later.

As shown in fig. 4, the left-right width of the 1 st inclined surface 41 increases as it goes away from the flat surface 45. The left-right width of the 3 rd inclined surface 43 increases as it goes away from the flat surface 45. Similarly, the lateral width of the 2 nd inclined surface 42 increases as it goes away from the flat surface 46. The left-right width of the 4 th inclined surface 44 increases as it goes away from the flat surface 46. In some embodiments, the left-right width of the 1 st inclined surface 41 is increased to 1/2 or more of the left-right width W16 of the core rope 16. The same applies to the 3 rd inclined surface. The lateral width of the 2 nd inclined surface 42 is increased to 1/2 or more of the lateral width W16 of the core rope 16. The same applies to the 4 th inclined surface 44. With this configuration, the attachment strength of the end stop 30 to the core rope 16 is improved.

In some embodiments, the 1 st inclined surface 41 is disposed at the thickest part R16 of the core rope 16. The same applies to the 3 rd inclined surface. The 2 nd inclined surface 42 is disposed at the thickest part R16 of the core rope 16. The same applies to the 4 th inclined surface 44. With this configuration, the attachment strength of the end stop 30 to the core rope 16 is improved.

In several embodiments, the 1 st inclined inner surface 41k contacts the thickest portion of the wick 16. The same is true for the 3 rd inclined inner surface. In addition, the 2 nd inclined inner surface 42k is in contact with the thickest portion of the core rope 16. The same applies to the 4 th inclined inner surface 44 k. With this configuration, the attachment strength of the end stop 30 to the core rope 16 is improved.

The stop 30 before caulking is attached to the core thread 16 of the tape side edge portion 15 of the fastener tape 10 by caulking using a caulking machine 80 shown in fig. 8. The riveting machine 80 includes: a 1 st arm 83 having a 1 st pressing portion 81 provided at a distal end thereof for pressing the 1 st leg portion 35 of the stop 30; and a 2 nd arm 84 provided at a distal end thereof with a 2 nd pressing portion 82 for pressing the 2 nd leg portion 36 of the stop 30, the 1 st arm 83 and the 2 nd arm 84 being pivotally coupled to each other via a coupling shaft 85 so as to be pivotable. Before caulking, the stop 30 is put between the 1 st pressing part 81 and the 2 nd pressing part 82 and temporarily held therebetween. In the caulking process, the 1 st pressing part 81 moves toward the 2 nd pressing part 82 side, the 2 nd pressing part 82 moves toward the 1 st pressing part 81 side, and the interval between the 1 st pressing part 81 and the 2 nd pressing part 82 is narrowed by the rotation of the 1 st arm 83 and the 2 nd arm 84 in opposite directions, whereby the core rope 16 is sufficiently held between the 1 st leg part 35 and the 2 nd leg part 36 of the stopper 30.

The 1 st pressing portion 81 has a pressing surface 81m for pressing the 1 st leg portion 35 of the stop 30, two inclined surfaces for forming the 1 st inclined surface 41 and the 3 rd inclined surface 43 of the stop 30 are provided on the pressing surface 81m, and a flat surface for forming the flat surface 45 is provided between the two inclined surfaces. The pressing surface 81m is also configured to shape the inclined surface 471 and the inclined surface 473 of the 1 st outer surface 31.

The 2 nd pressing portion 82 has a pressing surface 82m for pressing the 2 nd leg portion 36 of the stop 30, two inclined surfaces for forming the 2 nd inclined surface 42 and the 4 th inclined surface 44 of the stop 30 are provided on the pressing surface 82m, and a flat surface for forming the flat surface 46 is provided between the two inclined surfaces. The pressing surface 82m is also configured to shape the inclined surface 472 and the inclined surface 474 of the 2 nd outer surface 32.

As shown in fig. 9 (a), when the stopper 30 is temporarily held between the 1 st pressing part 81 and the 2 nd pressing part 82, there is a possibility that the stopper 30 may not be oriented as shown in the drawing between the two parts. In the present embodiment, the inclined surface is provided on the pressing surface 81m of the 1 st pressing portion 81 and the inclined surface is provided on the pressing surface 82m of the 2 nd pressing portion 82, and thus it is expected that the accurate orientation of the stop 30 is promoted in the caulking process as shown in fig. 9 (b). Self-alignment of the stop 30 is ensured. It is not necessary to provide two inclined surfaces on the

pressing surfaces

81m and 82 m. In some cases, only the inclined surface for forming the 1 st inclined surface 41 is provided in the 1 st pressing portion 81, and only the inclined surface for forming the 2 nd inclined surface 42 is provided in the 2 nd pressing portion 82. In such a case, self-alignment of the stop can also be achieved.

The stopper 30z of the comparative example shown in fig. 10 does not have any of the 1 st to 4 th inclined surfaces on the 1 st outer surface 31 and the 2 nd outer surface 32. The riveter 80z shown in FIG. 11 is used to manufacture the stop 30z shown in FIG. 10. In the 1 st pressing part 81 of the riveting machine 80z shown in fig. 11, inclined surfaces for forming the 1 st inclined surface 41 and the 3 rd inclined surface 43 are not formed, and similarly, inclined surfaces for forming the 2 nd inclined surface 42 and the 4 th inclined surface 44 are not provided in the 2 nd pressing part 82. Therefore, the self-alignment of the end stop 30 as described with reference to fig. 9 is not promoted at all, resulting in a reduction in the strength of attachment of the end stop 30 to the core rope 16.

< embodiment 2 >

Embodiment 2 will be described with reference to fig. 12. Fig. 12 is a schematic cross-sectional view of a stop included in a fastener stringer, and also shows a cross-sectional structure of a fastener element adjacent to the stop. In the present embodiment, the 1 st inclined surface 41 is provided over the entire front-rear length of the stop 30, and the 2 nd inclined surface 42 is provided over the entire front-rear length of the stop 30. In such a case, the same effects as those of embodiment 1 can be obtained. The stop 30 has a minimum thickness at the 1 st end 38e and a maximum thickness at the 2 nd end 38 g.

< further comparative example >

In the stopper 30zz of the comparative example shown in fig. 13, two concave portions 305 are formed in the 1 st outer surface 31, and two concave portions 305 are similarly formed in the 2 nd outer surface 32. In this case, it is required to impart a relatively large deformation to the end stop 30. Such large deformations are generally not tolerated. Self-alignment of the stop 30 in the riveter 80 is not achieved.

< further embodiment >

Fig. 14 is a schematic partial perspective view of the back stop 30s of fig. 1. The back stop 30s has the same structure as the front stop 30 of fig. 1. Directly, the back stop 30s is provided with a 1 st outer surface and a 2 nd outer surface facing opposite sides with a core rope with side edge portions interposed therebetween, and the 1 st end of the stop in the direction along the core rope is provided with: a 1 st inclined surface extending along the core rope to an outer periphery of the 1 st outer surface in a shape gradually approaching the core rope; and a 2 nd inclined surface extending along the core rope to the outer periphery of the 2 nd outer surface in a manner gradually approaching the core rope, wherein the thickness of the 1 st end part of the stop provided with the 1 st inclined surface and the 2 nd inclined surface is smaller than the thickness of the part of the stop except the 1 st end part. Other features described above with respect to the front stopper 30 can be similarly applied to the rear stopper 30s illustrated in fig. 1 and 14. That is, the stop of the present disclosure should not be limited to a front stop, but can also be used as a back stop.

Various modifications to the embodiments will be readily apparent to those skilled in the art in light of the above teachings. Reference numerals are incorporated into the claims for reference and should not be referred to for the purposes of limiting the interpretation of the claims.

Description of the reference numerals

10 zipper tape

15 with side edge

16-core rope

20 zipper teeth

30 stop code

31 No. 1 outer surface

32 nd 2 nd outer surface

38e 1 st end

38g 2 nd end

39 intermediate section

41 st inclined surface

42 nd 2 nd inclined plane

50 zipper teeth chain belt

60 slider for slide fastener

70 zipper

Claims

1. A fastener stringer comprising:

metal stoppers (30, 30s) fixed to a core thread (16) of a tape side edge portion (15) of the fastener tape (10) at a position adjacent to the fastener elements (20),

the fastener stringer (50) is characterized in that,

a1 st end (38e) of each stop (30, 30s), which is arranged along the core thread (16) at a position further away from the fastener element (20), is provided with: a 1 st inclined surface (41) extending along the core string (16) to the outer periphery of the 1 st outer surface (31) in a manner gradually approaching the core string (16); and a 2 nd inclined surface (42) extending along the core rope (16) to the outer periphery of the 2 nd outer surface (32) in a manner gradually approaching the core rope (16),

the thickness (TH38) of the 1 st end (38e) of the stop (30, 30s) provided with the 1 st inclined surface (41) and the 2 nd inclined surface (42) is smaller than the thickness (TH39) of the part (39) of the stop (30, 30s) other than the 1 st end (38e),

the 1 st end portion (38e) has a 1 st inclined inner surface (41k) inclined in synchronization with the 1 st inclined surface (41) and a 2 nd inclined inner surface (42k) inclined in synchronization with the 2 nd inclined surface (42) so that the 1 st end portion (38e) has edge portions (35m, 35n) that bite into the core rope (16) in order to withstand a force applied from a slide fastener slider (60).

2. The fastener stringer according to claim 1,

the 2 nd end (38g) of the stop (30, 30s) along the core rope (16) is provided with: a 3 rd inclined surface (43) extending along the core rope (16) to the outer periphery of the 1 st outer surface (31) in a manner gradually approaching the core rope (16); and a 4 th inclined surface (44) extending along the core string (16) to the outer periphery of the 2 nd outer surface (32) in a form gradually approaching the core string (16),

3. The fastener stringer according to claim 2,

the 2 nd end (38g) has: a 3 rd inclined inner surface (43k) that is inclined in synchronization with the 3 rd inclined surface (43); and a 4 th inclined inner surface (44k) which is inclined in synchronization with the 4 th inclined surface (44), wherein the 2 nd end portion (38g) has edge portions (35p, 35q) which bite into the core rope (16).

4. The fastener stringer according to claim 2 or 3,

a flat surface (45) is provided between the 1 st inclined surface (41) and the 3 rd inclined surface (43), and a flat surface (46) is provided between the 2 nd inclined surface (42) and the 4 th inclined surface (44).

5. A slide fastener, comprising:

a pair of fastener stringer (50) equivalent to the fastener stringer (50) of claim 1 or 2; and

6. The zipper according to claim 5,

a pair of fastener stringers (50) are closed by advancing the slider, and stoppers (30, 30s) are provided in the vicinity of the front of the fastener elements (20).

7. A riveting machine (80) for manufacturing a fastener stringer (50) according to claim 1,

the riveting machine is provided with a 1 st pressing part (81) and a 2 nd pressing part (82) for riveting the stop (30, 30s) to the core rope (16),