WO2022118376A1

WO2022118376A1 - Divided upper-stop

Info

Publication number: WO2022118376A1
Application number: PCT/JP2020/044702
Authority: WO
Inventors: チャトリーシッドハルタ; 秀樹佐藤; 剛高荷
Original assignee: Ykk株式会社
Priority date: 2020-12-01
Filing date: 2020-12-01
Publication date: 2022-06-09
Also published as: JP7412596B2; JPWO2022118376A1; CN116456858A

Abstract

Provided is a divided upper-stop capable of facilitating passing of a slider through a gap between an upper side upper-stop and a lower side upper-stop. The present invention relates to a divided upper-stop (1) that is provided on one of left/right fastener stringers (40a, 40b) of a slide fastener (100) including the left/right fastener stringers (40a, 40b) and a slider (50) for opening and closing the left/right fastener stringers (40a, 40b). The divided upper-stop (1) includes an upper side upper-stop (10), and a lower side upper-stop (20) that is disposed below and with a gap (30) with respect to the upper side upper-stop (10) and that can pass an element guide path (54) of the slider (50). The divided upper-stop (1) can attach and detach the slider (50) to and from the one of the fastener stringers (40b), through the gap (30). The gap (30) is defined by a lower side surface (13a) of the upper side upper-stop (10) and an upper side surface (23a) of the lower side upper-stop (20). The lower side surface (13a) of the upper side upper-stop (10) and the upper side surface (23a) of the the lower side upper-stop (20) gradually separate from each other toward a front side in a front-back direction, and widen the gap (30) toward the front side in the front-back direction.

Description

Split top stop

The present invention relates to a split upper stop, and more particularly to a split upper stop in which the upper stop that restricts the upward movement of the slider in the slide fastener is divided into an upper upper stop and a lower upper stop.

In the slide fastener, a top stop is generally provided on each of the left and right fastener stringers to limit the upward movement of the slider. Further, in US Pat. No. 6,327,755 (Patent Document 1) and China Utility Model No. 2568022 (Patent Document 2), one of the left and right fastener stringers is referred to as an upper stop and a lower stop. Disclosed is a split top stop that allows the slider to be attached and detached through the gap between the upper top stop and the lower top stop. By using such a split top stop, there is an advantage that if the slider breaks down, it can be replaced with a new slider.

Both the upper upper stop and the lower upper stop of the split upper stop disclosed in Patent Documents 1 and 2 are plate-shaped, and have a flat surface on the front side in the front and back directions (directions perpendicular to the longitudinal direction and the width direction of the fastener stringer). It has a flat back surface opposite to the front surface and a side surface between the front surface and the back surface. The sides are perpendicular to the fastener tape of the fastener stringer, and also the lower side of the upper top stop and the upper side of the lower top stop that substantially define the gap between the upper top stop and the lower top stop. It is perpendicular to the fastener tape. Further, the gap between the upper stop and the lower stop is set to the minimum distance that the slider can be taken in and out so that the slider does not inadvertently come off the fastener stringer when using a normal slide fastener. Therefore, when passing the slider through the gap between the upper stop and the lower stop, if the upper and lower blade plates of the slider are parallel to the fastener tape, it is relatively easy to pass the slider, while the upper and lower blade plates of the slider are fastener tape. There was a problem that it became difficult to pass the slider when it was tilted. Therefore, it was necessary for the upper and lower blade plates to be parallel to the fastener tape when the slider was taken in and out.

U.S. Pat. No. 6,327,755 China Utility Model No. 2568022

The present invention has been made in view of the above problems, and an object of the present invention is to provide a split top stop that can easily pass a slider through a gap between an upper top stop and a lower top stop. To do.

In order to solve the above problems, according to the present invention, a split top stop provided on one of the left and right fastener stringers in a slide fastener including a left and right fastener stringers and a slider for opening and closing between the left and right fastener stringers. It is provided with an upper stop and a lower stop that can pass through the element guide path of the slider, which is arranged below with a gap from the upper stop, and one of the upper stops is provided through the gap. The slider can be attached to and detached from the fastener stringer, and the gap is defined by the lower side surface of the upper upper stop and the upper side surface of the lower upper stop, and the lower side surface of the upper upper stop and the said. Provided is a split top stop characterized in that the upper side surface of the lower top stop is gradually separated from each other toward the front side in the front and back directions, and the gap is widened toward the front side in the front and back directions.

In the present invention, the gap through which the slider is passed when the slider is attached and detached is defined by the lower side surface of the upper upper stop and the upper side surface of the lower upper stop, and the lower side surface of the upper upper stop and the upper side surface of the lower upper stop are defined. The gap gradually separates from each other toward the front and back sides, so that the gap widens toward the front and back sides. In other words, the substantially vertical distance in the gap between the lower side surface of the upper upper stop and the upper side surface of the lower upper stop gradually increases from the fastener tape side to the front side in the front and back directions away from the fastener tape. .. This allows when attaching and detaching the slider to one of the fastener stringers through the minimum required gap, even if the upper and lower blades of the slider are tilted with respect to the fastener tape, the lower and lower sides of the upper stop. It becomes easier to pass the slider between the upper side of the top stop.

In one embodiment of the present invention, the lower side surface of the upper upper stop and the upper side surface of the lower upper stop are curved surfaces that are convex to the outside of each of the upper upper stop and the lower upper stop. .. Here, the fact that the lower side surface of the upper upper stop is a curved surface that is convex to the outside of the upper upper stop means that the lower side surface is a curved surface that is convex in the direction extending in the radial direction from the center of gravity of the upper upper stop. means. Further, the curved surface in which the upper side surface of the lower upper stop is convex to the outside of the lower upper stop is a curved surface in which the upper side surface is convex in the radial direction from the center of gravity of the lower upper stop. Means that. The arrows in FIG. 3 indicate the radial direction in a plane parallel to the fastener tape. The lower side surface of the upper upper stop and the upper side surface of the lower upper stop are curved surfaces that are convex in the radial direction, in which the mutual spacing gradually increases toward the front and back sides. As a result, when attaching and detaching the slider to one of the fastener stringers through the gap, the flange of the slider slides on the lower side surface of the upper upper stop and the upper side surface of the lower upper stop, which are convex curved surfaces, respectively. It becomes easier to guide the slider in the passing direction of the gap.

In one embodiment of the present invention, the cross section parallel to the fastener tape is gradually reduced from the fastener tape side to the front side in the front and back directions of each of the upper upper stop and the lower upper stop. Since the cross section parallel to the fastener tape of the upper upper stop and the lower upper stop gradually shrinks to the front side in the front-back direction, each of the upper upper stop and the lower upper stop includes a side surface that is not perpendicular to the fastener tape.

In one embodiment of the present invention, the peripheral side surface including the lower side surface of the upper upper stop is a curved surface that is convex to the outside of the upper upper stop. In this case, the peripheral side surface of the upper upper stop is not perpendicular to the fastener tape, and the upper upper stop has a rounded shape on the entire side surface. Further, in one embodiment of the present invention, the peripheral side surface including the upper side surface of the lower upper stop is a curved surface that is convex to the outside of the lower upper stop. In this case, the peripheral side surface of the lower upper stop is not perpendicular to the fastener tape, and the lower upper stop has a rounded shape on the entire side surface. Further, the cross section parallel to the fastener tapes of the upper upper stop and the lower upper stop is gradually reduced to the front side in the front and back directions, and the peripheral side surface of the upper upper stop and the peripheral side surface of the lower upper stop are convex outward. If this is the case, the upper upper stop and the lower upper stop have a rounded shape as a whole on the front and back sides of the fastener tape.

In one embodiment of the invention, the lower side surface of the upper stop is inclined downward from one end in the left-right direction to the other end in the left-right direction, and the lower side surface is the first one in the left-right direction. An inclined surface, a second inclined surface which is the other second inclined surface in the left-right direction and has an inclination angle different from that of the first inclined surface, and an upper portion between the first inclined surface and the second inclined surface. Including dents and dents. By providing a recess between the first inclined surface and the second inclined surface on the lower surface of the upper upper stop, one of the sliders is passed through the minimum set gap between the upper upper stop and the lower upper stop. When attaching to the fastener stringer, the upper end of the flange of the slider (see reference numeral 55a in FIG. 8) is received by the recess, and the slider is rotated around the upper end of the flange received by the recess (see the arrow in FIG. 8). The mounting direction of the fastener stringer can be changed to be along the longitudinal direction of the fastener stringer. In addition, since the lower side surface of the upper upper stop tilts upward to one side in the left-right direction, the vertical distance between the upper upper stop and the lower upper stop expands to one side in the left-right direction, and the slider is moved to one side in the left-right direction. It becomes easier to pass through the gap from one to the other.

In one embodiment of the present invention, the radius of curvature R1 of the upper side surface of the lower upper stop is 0.6 mm or more and 2.2 mm or less. The lower side surface of the upper upper stop and the upper side surface of the lower upper stop are curved surfaces that are gradually separated from each other toward the front side in the front and back directions and are convex to the outside of each of the upper upper stop and the lower upper stop. With reference to FIG. 10, when the radius of curvature R1 of the upper side surface 23a of the lower upper stop 20 is set to less than 0.6 mm, the flange of the slider (see reference numeral 55a in FIG. 8) is set to the lower side surface and the lower side of the upper upper stop. It becomes difficult to pass the slider through the gap between the upper side of the top stop. Further, the lower upper stop is formed so as to include the first element at the upper end of the element row, but when R1 exceeds 2.2 mm, it becomes difficult to include the first element in the lower upper stop. ..

In the present invention, the mutual spacing between the lower side surface of the upper upper stop and the upper side surface of the lower upper stop gradually expands to the front side in the front and back directions, whereby the gap widens to the front side in the front and back directions. This allows when attaching and detaching the slider to one of the fastener stringers through the minimum required gap, even if the upper and lower blades of the slider are tilted with respect to the fastener tape, the lower and lower sides of the upper stop. It becomes easier to pass the slider between the upper side of the top stop.

FIG. 1 is a plan view showing an upper portion of a slide fastener provided with a split top stop according to the present invention, which is broken in the longitudinal direction (vertical direction). FIG. 2 is a perspective view showing a cut portion of a region including a split top stop in the fastener stringer on the right side. FIG. 3 is a plan view showing the region including the split top stop in the right fastener stringer by breaking. FIG. 4 is a bottom view showing the region including the split top stop in the right fastener stringer by breaking. FIG. 5 is a side view showing the region including the split top stop in the right fastener stringer by breaking. FIG. 6 is a plan explanatory view showing a process of attaching a slider to the fastener stringer on the right side. FIG. 7 is a plan explanatory view showing a process of attaching a slider to the fastener stringer on the right side. FIG. 8 is a plan explanatory view showing a process of attaching a slider to the fastener stringer on the right side. FIG. 9 is a plan explanatory view showing a process of attaching a slider to the fastener stringer on the right side. FIG. 10 is a cross-sectional view of the split top stop along the line AA of FIG. 3, and the back portion of the upper top stop and the fastener tape are omitted.

Hereinafter, embodiments of the present invention will be described with reference to the drawings, but the present invention is not limited to such embodiments and can be appropriately modified within the scope of claims and the equivalent. FIG. 1 is a plan view showing an upper portion of a slide fastener 100 provided with a split top stop 1 according to the present invention, which is broken in the longitudinal direction (vertical direction). In the present specification, unless otherwise specified, the "upper" of the slide fastener 100 and the split upper stop 1 means the upper part in the longitudinal direction of the slide fastener 100, and the "lower" means the lower part in the longitudinal direction. And.

The slide fastener 100 includes a pair of left and

right fastener stringers

40a and 40b that are long in the longitudinal direction, and a slider 50 that can open and close between the left and

right fastener stringers

40a and 40b. The left and

right fastener stringers

40a and 40b include left and right fastener tapes 41, and an element row 42 composed of a series or a large number of elements 42a attached to opposite edges of the left and right fastener tapes 41. The element row 42 shown in FIG. 1 is made of a coiled monofilament made of a thermoplastic resin such as polyamide or polyester, but is not limited thereto, and the element row 42 is made of a large number of elements 42a made of metal or the like. You may. A core string 43 is provided on the facing edge portion of the surface of each fastener tape 41 in order to increase the attachment strength of the element 42a and the upper stoppers 1 and 2 described later. The thickness of the core cord 43 is larger than the thickness of the fastener tape 41, so that the core cord 43 protrudes from the surface of the fastener tape 41. The right fastener stringer (hereinafter, also simply referred to as “right stringer”) 40b is provided with a split top stop 1 adjacent to the upper end of the element row 42. The left fastener stringer 40a is provided with an undivided top stop 2 adjacent to the upper end of the element row 42. The split top stop 1 and the top stop 2 are formed by injection molding or extrusion molding of a thermoplastic resin such as nylon, polyacetal, polyamide, polypropylene, polybutylene terephthalate, etc. on the fastener tape 41, but are limited thereto. It is not something that will be done. The split upper stop 1 and the upper stop 2 are provided so as to straddle the core string 43 at the facing edge portion of the fastener tape 41 in the left-right direction. In FIG. 1, the butterfly rod and the butterfly box provided below the slide fastener 100 are omitted. When the user moves the slider 50 upward, the space between the element rows 42 of the left and

right fastener stringers

40a and 40b is closed, and when the slider 50 is moved downward, the space between the left and right element rows 42 is opened. The split top stop 1 and the top stop 2 limit the movement of the slider 40 further upward.

The slider 50 includes an upper wing plate 51, a lower wing plate 52 (see FIG. 6 and the like), and a guide pillar 53 (see FIG. 6 and the like) connecting the upper and lower wing plates 51 and 52. A Y-shaped element guide path 54 (see FIG. 6 and the like) is defined between the upper and lower blade plates 51 and 52. The element guide path 54 opens to the rear opening 54a of the slider 50 and also to two shoulder openings 54b adjacent to the left and right of the guide pillar 53. The upper wing plate 51 and the lower wing plate 52 include a flange 55 (55a) (see FIG. 6 and the like) that defines the width of the element guide path 54 in the left-right direction. The flange 55 restrains the element 42a in the element guide path 54, and allows the fastener tape 41 to escape to the outside of the element guide path 54 from the gap between the flanges 55 of the upper and lower blade plates 51 and 52.

In the slide fastener 100, the slider 50 is pulled down to the lower end position, a butterfly rod (not shown) is pulled out from the butterfly box, and the butterfly rod is pulled upward through the element guide path 54 of the slider 50, whereby the left fastener stringer 40a and the right stringer 40b are pulled out. And can be separated. In this state, the slider 50 remains on the right stringer 40b. From this state, the slider 50 can be removed from the right stringer 40b via the split top stop 1 as described later. Further, a new or repaired slider 50 can be attached to the right stringer 40b via the split top stop 1.

2 to 5 are a perspective view, a plan view, a bottom view, and a side view showing the region including the split top stop 1 in the right stringer 40b. Hereinafter, unless otherwise specified, the front and back directions of the split top stop 1 are directions perpendicular to each of the vertical direction (longitudinal direction of the right stringer 40b) and the left-right direction (width direction of the right stringer 40b) (thickness of the right stringer 40b). The front side in the front and back directions means the side away from the fastener tape 41 of the right stringer 40b toward the upper wing plate 51 side of the slider 50, and the back side in the front and back directions means the side from the fastener tape 41 to the slider 50 in the front and back directions. The side away from the lower wing plate 52 side.

The split upper stop 1 includes an upper upper stop 10 and a lower upper stop 20 arranged below with a gap 30 with respect to the upper upper stop 10. The upper stop 10 cannot pass through the element guide path 54 of the slider 50. The lower upper stop 20 can pass through the element guide path 54 at the very limit. That is, the thickness of the lower upper stop 20 in the front and back directions is slightly smaller than the distance between the upper wing plate 51 and the lower wing plate 52 of the slider 50, and is one with the rear port 54a of the element guide path 54. The size is set so that it can pass between the (right) shoulder opening 54b. The slider 50 can be attached to and removed from the right stringer 40b separated from the left fastener stringer 40a through the gap 30 between the upper upper stop 10 and the lower upper stop 20. Hereinafter, the gap 30 is referred to as a "slider passage 30". The slider passage 30 is set at the minimum interval at which the slider 50 can be taken in and out so that the slider 50 does not inadvertently come off from the right stringer 40b via the split top stop 1 when the normal slide fastener 100 is used.

The upper stop 10 includes a front portion 10A that bulges to the front side from the fastener tape 41 of the right stringer 40b, and a back portion 10B that bulges to the back side of the fastener tape 41. The lower top stop 20 is formed so as to include the element 42a at the upper end of the right stringer 40b at the time of molding. Therefore, the lower upper stop 20 has a high adhesive strength to the fastener tape 41. On the other hand, the upper stop 10 does not include the element 42a. Therefore, by forming the back portion 10B connected to the front portion 10A on the back surface 41a (see FIG. 5) of the fastener tape 41, the adhesive strength of the upper stop 10 to the fastener tape 41 is increased. With reference to FIG. 3 and the like, in both the front portion 10A and the back portion 10B, the left portion of about 1/3 in the left-right direction is detached from the fastener tape 41 to the left, and the right portion of about 2/3 is on the fastener tape 41. Placed in. Further, the front portion 10A and the back portion 10B are arranged so that the core string 43 of the fastener tape 41 comes to a substantially intermediate portion in the left-right direction. The back portion 10B is connected to the upper two-thirds portion of the front portion 10A directly or via the fastener tape 41. Therefore, about 1/3 of the lower portion of the front portion 10A protrudes downward from the back portion 10B. Hereinafter, the boundary between the front portion 10A and the back portion 10B is referred to as a boundary surface 11a for convenience. The front portion 10A has a base surface 11 including a boundary surface 11a with the back portion 10B, a top surface 12 separated from the base surface 11 on the front side in the front-back direction, and a peripheral side surface 13 extending between the base surface 11 and the top surface 12. And have. As can be seen from FIG. 5, the base surface 11 of the front surface portion 10A substantially follows the back surface 41a of the fastener tape 41. The top surface 12 is represented flat in FIGS. 5 and 10, but strictly speaking, it is a curved surface that is slightly convex in the front side in the front-back direction (or the radial direction of the upper stop 10). The cross section of the surface portion 10A parallel to the fastener tape 41 gradually shrinks from the base surface 11 to the top surface 12. The peripheral side surface 13 extends in a curved shape from the base surface 11 side to the top surface 12 side in the front and back directions. Further, the peripheral side surface 13 is a curved surface that is convex in the radial direction (see the arrow in FIG. 3) of the outer side of the front surface portion 10A, that is, the upper stop 10. The radial direction of the upper upper stop 10 means a direction extending from the center of gravity of the upper upper stop 10, and the radial direction of the lower upper stop 20 means a direction extending from the center of gravity of the lower upper stop 20. In FIG. 3, the arrow extending from the center of each of the upper stop 10 and the lower upper stop 20 indicates a part of the radial direction of each of the upper stop 10 and the lower upper stop 20 on the surface parallel to the fastener tape 41. show.

The peripheral side surface 13 of the front surface portion 10A includes a lower side surface 13a that defines the upper side of the slider through path 30, a stopper surface 13b adjacent to the right side of the lower side surface 13a, and a left side surface 13c adjacent to the left side of the lower side surface 13a. Has an upper side surface 13d adjacent above each of the left side surface 13c and the stopper surface 13b. The lower side surface 13a inclines upward from the right end adjacent to the stopper surface 13b to the left end adjacent to the left side surface 13c. The stopper surface 13b extends from the right end adjacent to the lower side surface 13a upward and then to the right in a substantially dogleg shape. The left side surface 13c extends upward from the lower end adjacent to the lower side surface 13a. The upper side surface 13d extends from the left end adjacent to the left side surface 13c to the right, and then extends to the right end adjacent to the stopper surface 13b in a curved shape to the right and downward. The lower side surface 13a, the stopper surface 13b, the left side surface 13c, and the upper side surface 13d extend in a curved shape not only in the front and back directions but also in the vertical and horizontal directions. Therefore, it can be said that the front portion 10A has a rounded shape as a whole. Therefore, it is difficult to hurt the user's fingers or clothing. The stopper surface 13b is a portion where the slider 50 moving upward abuts against the left and

right fastener stringers

40a and 40b in a normal state where the left and

right fastener stringers

40a and 40b are not separated, and substantially restricts the movement of the slider 50 further upward. ..

The lower side surface 13a of the front portion 10A inclines downward from its left end to the right end. The lower side surface 13a has a first inclined surface 13aa on the left side, a second inclined surface 13ab on the right side, and a recess 13ac that is slightly upwardly recessed between the first inclined surface 13aa and the second inclined surface 13ab. include. The angle of inclination of the first inclined surface 13aa to the right and downward with respect to the left-right direction is set to be larger than the angle of inclination to the right and downward of the second inclined surface 13ab with respect to the left-right direction. The recess 13ac is provided at a substantially intermediate point in the left-right direction in the left portion detached to the left from the fastener tape 41 of the front portion 10A. The length of the first inclined surface 13aa on the left side of the recess 13ac in the left-right direction is about 1/4 of the length of the second inclined surface 13ab on the right side in the left-right direction.

The back portion 10B has a bottom surface 14 separated from the boundary surface 11a with the front surface portion 10A on the back side in the front-back direction, and a peripheral side surface 15 extending between the boundary surface 11a and the bottom surface 14. The bottom surface 14 is represented flat in FIG. 5, but strictly speaking, it is a curved surface that is slightly convex in the back side in the front-back direction (or the radial direction of the upper stop 10). The cross section of the back portion 10B parallel to the fastener tape 41 gradually shrinks from the boundary surface 11a to the bottom surface 14. The peripheral side surface 15 extends in a curved shape from the boundary surface 11a side to the bottom surface 14 side in the front and back directions, and also extends in a curved shape in the vertical direction and the horizontal direction. Further, the peripheral side surface 15 is a curved surface that is convex in the radial direction (see the arrow in FIG. 3) on the outside of the back portion 10B, that is, the upper stop 10. Further, as can be seen from FIG. 4, the portion of the back portion 10B along the boundary surface 11a is slightly lower left (based on the paper surface of FIG. 4) at the left end portion of an oval long in the left-right direction (the left end portion based on the paper surface of FIG. 4). It looks like it is bent to the lower left). Therefore, it can be said that the back portion 10B has a rounded shape as a whole.

The lower top stop 20 bulges only from the fastener tape 41 of the right stringer 40b to the front side in the front and back directions. In the lower stop 20, about 1/3 of the left portion is detached from the fastener tape 41 to the left in the left-right direction, and about 2/3 of the right portion is arranged on the fastener tape 41. The lower upper stop 20 extends between the base surface 21 substantially along the back surface 41a of the fastener tape 41, the top surface 22 separated from the base surface 21 on the front side in the front and back directions, and the base surface 21 and the top surface 22. It has a peripheral side surface 23. The top surface 22 is a curved surface that is slightly convex in the front side (or the radial direction of the lower top stop 20) in the front and back directions. The cross section of the lower top stop 20 parallel to the fastener tape 41 gradually shrinks from the base surface 21 to the top surface 22 toward the front side in the front and back directions. The peripheral side surface 23 extends in a curved shape from the base surface 21 side to the top surface 22 side in the front and back directions. Further, the peripheral side surface 23 is a curved surface that is convex on the outside of the lower upper stop 20, that is, in the radial direction (see the arrow in FIG. 3).

The peripheral side surface 23 includes an upper side surface 23a that defines the lower side of the slider passage 30, a right side surface 23b adjacent to the right side of the upper side surface 23a, a left side surface 23c adjacent to the left side of the upper side surface 23a, and a left side surface. It has a lower side surface 23d adjacent to the lower side of each of the 23c and the right side surface 23b. The upper side surface 23a is slightly inclined downward from the left end adjacent to the left side surface 23c to the right, and then extends further to the right and downward in a curved shape to connect to the right side surface 23b. The right side surface 23b extends substantially in the vertical direction from above to below. The left side surface 23c extends diagonally downward and to the left from the upper end adjacent to the upper side surface 23a to the lower end adjacent to the lower side surface 23d. The lower side surface 23d extends diagonally to the left and upward from the left end adjacent to the left side surface 23c to the right end adjacent to the right side surface 23b. The upper side surface 23a, the right side surface 23b, the left side surface 23c, and the lower side surface 23d extend in a curved shape not only in the front-back direction but also in the vertical direction and the left-right direction. Therefore, it can be said that the lower upper stop 20 has a rounded shape as a whole. Therefore, it is difficult to hurt the user's fingers or clothing.

The slider passage 30 is substantially defined by the lower side surface 13a of the upper upper stop 10 and the upper side surface 23a of the lower upper stop 20. FIG. 10 is a cross-sectional view of the split upper stop 1 along the line AA of FIG. 3, and the back portion 10B of the upper upper stop 10 and the fastener tape 41 are omitted. The line AA in FIG. 3 passes through the centers of gravity of the upper stop 10 and the lower stop 20 respectively. Therefore, the cross sections of the lower side surface 13a of the upper upper stop 10 and the upper side surface 23a of the lower upper stop 20 shown in FIG. 10 are the upper upper stop 10 and the lower upper stop 20 on the surface parallel to the fastener tape 41, respectively. It is a cross section substantially along one of the radial directions. The lower side surface 13a and the upper side surface 23a are gradually separated from each other from the

base surface

11 and 21 sides to the front side in the front and back directions. As a result, the vertical spacing of the slider passage 30 gradually increases from the fastener tape 41 side to the front and back sides. Further, the lower side surface 13a and the upper side surface 23a are curved surfaces that are convex in the radial direction as described above. With reference to FIG. 10, the radius of curvature R1 of the upper side surface 23a of the lower upper stop 20 is set to 0.6 mm or more and 2.2 mm or less. Assuming that the radius of curvature R1 of the upper side surface 23a is less than 0.6 mm, when the slider 50 is passed through the slider passage 30, the resin of the upper side surface 23a interferes with the slider 50, and the slider 50 is smoothly passed through the slider passage 30. Can't be done. On the other hand, when the radius of curvature R1 exceeds 2.2 mm, it becomes difficult to include the element (first element) 42a at the upper end of the right stringer 40b in the lower upper stop 20. The radius of curvature R2 of the lower side surface 13a of the upper upper stop 10 is not particularly limited, and is set to be substantially the same as the radius of curvature R1 of the upper side surface 23a. As described above, since the lower side surface 13a of the upper upper stop 10 and the upper side surface 23a of the lower upper stop 20 are convex curved surfaces, the slider 50 is attached to the right stringer 40b through the slider through path 30 set to the minimum necessary. When attaching and detaching, even if the upper and lower blade plates 51 and 52 of the slider 50 are tilted with respect to the fastener tape 41, the right flange 55a (see FIG. 6 and the like) of the slider 50 is slid onto the lower side surface 13a or the upper side surface 23a. However, it becomes easier to pass the slider 50 through the slider passage 30. Furthermore, the vertical spacing of the slider passage 30 is further expanded to the left by the second inclined surface 13ab of the upper side surface 23a, and the vertical spacing of the slider passage 30 is further expanded to the left by the first inclined surface 13aa. do. Therefore, it becomes easy to pass the slider 50 through the slider passage 30 from the left side to the right side.

6 to 9 are plan explanatory views showing a process of attaching the slider 50 to the right stringer 40b through the slider through path 30, the upper wing plate 51 is omitted, and the right stringer 40b is shown to be broken. When attaching the slider 50 to the right stringer 40b, first, the surfaces parallel to the upper and lower blade plates 51 and 52 of the slider 50 (hereinafter referred to as "slider surface") are made substantially parallel to the fastener tape 41, and the center line of the slider 50 is formed. While tilting the CL at about 60 degrees with respect to the vertical line (not shown) along the vertical direction of the right stringer 40b, the rear opening 54a of the slider 50 is brought closer to the lower upper stop 20. At the time point of FIG. 6, the lower end of the right flange 55a of the slider 50 enters the slider through path 30, and the lower upper stop 20 partially enters the element guide path 54 of the slider 50 from the rear opening 54a. At this time, the lower side surface 13a of the upper upper stop 10 and the upper side surface 23a of the lower upper stop 20 are convex curved surfaces that are curved in the front-back direction, the left-right direction, and the vertical direction, and the lower side surface 13a is inclined to the left and upward. Therefore, it is easy to pass the right flange 55a through the slider passage 30. Further, since the mutual distance between the lower side surface 13a and the upper side surface 23a gradually expands to the front side in the front and back directions, the right flange 55a of the slider 50 can be easily and smoothly slid even if the slider surface is tilted with respect to the fastener tape 41. The right flange 55a can be passed through the through path 30 and is guided to the right of the slider through path 30 while sliding on the lower side surface 13a or the upper side surface 23a. When the slider 50 is pushed in from the time point of FIG. 6, as shown in FIG. 7, the right flange 55a of the slider 50 enters the slider through path 30 deeper, and the entire lower upper stop 20 enters the element guide path 54. At this point, the upper half of the right flange 55a is along the first inclined surface 13a of the lower side surface 13a of the upper stop 10.

When the slider 50 is further pushed in from the time point of FIG. 7, the upper end of the right flange 55a of the slider 50 is received by the recess 13ac in the lower side surface 13a of the upper stop 10. The slider 50 is rotated around the upper end of the right flange 55a received by the recess 13ac so that the center line CL approaches the vertical line of the right stringer 40b (see the arrow in FIG. 8). As a result, as shown in FIG. 9, the right flange 55a of the slider 50 passes through the slider through path 30, and the lower upper stop 20 approaches the right shoulder opening 54b of the element guide path 54. After that, the slider 50 is moved downward. As a result, the lower upper stop 20 goes out of the slider 50 from the right shoulder opening 54b of the slider 50, and the element 42 rows following the lower upper stop 20 move from the rear opening 54a of the slider 50 to the element guide path 54. It is inserted. This completes the attachment of the slider 50 to the right stringer 40b. By following the above steps in reverse, the slider 50 can be removed from the right stringer 40b.

1 Divided top stop 2 Top stop 10 Top top stop 10A Front part 10B Back part 11 Base surface 11a Boundary surface 12 Top surface 13 Circumferential side surface 13a Lower side surface 13aa 1st inclined surface 13ab 2nd inclined surface 13ac Depression 20 Lower upper stop 21 Base surface 22 Top surface 23 Circumferential side surface 23a Upper side surface 30 Gap (slider through path)
40a Left fastener stringer 40b Right fastener stringer 41 Fastener tape 42 Element row 42a Element 43 Core cord 50 Slider 51 Upper wing plate 52 Lower wing plate 53 Guide pillar 54 Element guideway 54a Rear opening 54b Shoulder opening 55 Flange 55a Right flange 100 slide fastener

Claims

The left and right fastener stringers (40a, 40b) in a slide fastener (100) including a left and right fastener stringers (40a, 40b) and a slider (50) for opening and closing between the left and right fastener stringers (40a, 40b). It is a split top stop (1) provided on one side,
Upper stop (10) and
The slider (50) is provided with a lower upper stop (20) that can pass through the element guide path (54) of the slider (50), which is arranged below the upper stop (10) with a gap (30).
The slider (50) can be attached to and detached from the one fastener stringer (40b) through the gap (30).
The gap (30) is defined by the lower side surface (13a) of the upper upper stop (10) and the upper side surface (23a) of the lower upper stop (20).
The lower side surface (13a) of the upper stop (10) and the upper side surface (23a) of the lower upper stop (20) are gradually separated from each other toward the front side in the front and back directions, and the gap (30) is set in the front and back directions. A split top stop characterized by spreading to the front side.
The lower side surface (13a) of the upper upper stop (10) and the upper side surface (23a) of the lower upper stop (20) are the upper upper stop (10) and the lower upper stop (20), respectively. The division top stop according to claim 1, wherein the curved surface is convex outward.
Each of the upper upper stop (10) and the lower upper stop (20) is characterized in that the cross section parallel to the fastener tape (41) is gradually reduced from the fastener tape (41) side to the front side in the front and back directions. The division top stop according to claim 1 or 2.
Claims 1 to 3 are characterized in that the peripheral side surface (13) including the lower side surface (13a) of the upper upper stop (10) is a curved surface that is convex to the outside of the upper upper stop (10). The division top stop described in any one of the above.
1. The peripheral side surface (23) including the upper side surface (23a) of the lower upper stop (20) is a curved surface that is convex to the outside of the lower upper stop (20). The division top stop according to any one of 4 to 4.
The lower side surface (13a) of the upper upper stop (10) is inclined downward from one end in the left-right direction to the other end in the left-right direction, and the lower side surface (13a) is the one second end in the left-right direction. The first inclined surface (13aa), the second inclined surface (13ab) which is the other second inclined surface (13ab) in the left-right direction and whose inclination angle is different from that of the first inclined surface (13aa), and the first inclined surface (13ab). The split top stop according to any one of claims 1 to 5, which includes a recess (13ac) that is recessed upward between the inclined surface (13aa) and the second inclined surface (13ab).
The split top stop according to claim 2, wherein the radius of curvature R1 of the upper side surface (23a) of the lower top stop (20) is 0.6 mm or more and 2.2 mm or less.