CN116456858A - Split upper stop - Google Patents

Abstract

The utility model provides a split upper stop which can enable a pull head to easily pass through a gap between an upper stop and a lower stop. The present utility model relates to a split top stopper (1) provided on one of left and right fastener stringers (40 a, 40 b) in a slide fastener (100) including the left and right fastener stringers (40 a, 40 b) and a slider (50) for opening and closing the left and right fastener stringers (40 a, 40 b). The split top stop (1) is provided with a top stop (10) on the upper side, and a bottom stop (20) which is arranged below the top stop (10) with a gap (30) therebetween and can pass through a fastener element guide path (54) of a slider (50). The split top stop (1) can mount and dismount a slider (50) to and from one of the fastener stringers (40 b) through the gap (30). The gap (30) is defined by the lower side surface (13 a) of the upper side upper stopper (10) and the upper side surface (23 a) of the lower side upper stopper (20). The lower side surface (13 a) of the upper side upper stopper (10) and the upper side surface (23 a) of the lower side upper stopper (20) are gradually separated from each other toward the front side in the front-back direction, so that the gap (30) is widened toward the front side in the front-back direction.

Description

Split upper stop

Technical Field

The present utility model relates to a split top stop, and more particularly, to a split top stop that divides a top stop for restricting upward movement of a slider into an upper top stop and a lower top stop in a slide fastener.

Background

The upper stops for limiting the upward movement of the slider in the slide fastener are generally provided on the left and right fastener stringers, respectively. Further, in U.S. Pat. No. 6327755 (patent document 1) and chinese patent application No. 2568022 (patent document 2), a split type upper stopper is disclosed in which one of the upper stopper and the lower stopper of the right and left fastener stringers is divided into the upper stopper and the lower stopper, so that the slider can be attached to or removed from the upper stopper through a gap between the upper stopper and the lower stopper. When the split type upper stopper is used, the split type upper stopper has the advantage that when the pull head fails, a new pull head can be replaced.

The split upper end stop and the lower end stop disclosed in patent documents 1 and 2 are each plate-shaped, and include a flat surface on the front side in the front-back direction (directions perpendicular to the longitudinal direction and the width direction of the fastener stringers, respectively), a flat back surface on the opposite side of the surface in the front-back direction, and a side surface between the front surface and the back surface. The side surfaces are perpendicular to the fastener strips of the fastener stringers, and the lower side surfaces of the upper side stops and the upper side surfaces of the lower side stops for substantially defining a gap between the upper side stops and the lower side stops are also perpendicular to the fastener strips. Further, the gap between the upper and lower stops is set to a minimum distance at which the slider can be moved in and out so that the slider does not inadvertently become detached from the fastener stringers during normal use of the zipper. Therefore, there are the following problems: when the slider passes through the gap between the upper stop on the upper side and the lower stop on the lower side, the slider is relatively easy to pass if the upper and lower flanges of the slider are parallel to the fastener tape, and it is difficult for the slider to pass if the upper and lower flanges of the slider are inclined with respect to the fastener tape. Therefore, it is necessary to set the posture of the slider to be parallel to the fastener tape with the upper and lower flanges when the slider is moved in and out.

Prior art literature

Patent literature

Patent document 1: U.S. patent No. 6327755;

patent document 2: chinese utility model No. 2568022 specification.

Disclosure of Invention

The present utility model has been made in view of the above-described problems, and an object thereof is to provide a split type upper stopper that can easily pass through a gap between an upper stopper and a lower upper stopper.

Problems to be solved by the utility model

In order to solve the above-described problems, according to the present utility model, there is provided a separable upper stopper provided on one of right and left fastener stringers of a slide fastener including the right and left fastener stringers and a slider for opening and closing the right and left fastener stringers, wherein the separable upper stopper is provided with an upper stopper provided below the upper stopper with a gap therebetween and capable of passing through a lower stopper of a fastener guide path of the slider, the slider is attached to or detached from one of the fastener stringers through the gap, the gap is defined by a lower side surface of the upper stopper and an upper side surface of the lower stopper, and the lower side surface of the upper stopper and the upper side surface of the lower stopper are gradually separated from each other in a front-back direction, thereby widening the gap to a front-back direction.

In the present utility model, the clearance through which the slider passes when the slider is attached and detached is defined by the lower side surface of the upper end and the upper side surface of the lower end, and the lower side surface of the upper end and the upper side surface of the lower end are gradually separated from each other toward the front side in the front-back direction, whereby the clearance is widened toward the front side in the front-back direction. In other words, the interval in the substantially vertical direction in the gap between the lower side surface of the upper end and the upper side surface of the lower end becomes gradually larger from the fastener tape side toward the front side in the front-back direction away from the fastener tape. Thus, by setting the minimum clearance required, when the slider is attached to and detached from one of the fastener stringers, even if the upper and lower flanges of the slider are inclined with respect to the fastener tape, the slider easily passes between the lower side surface of the upper end stop and the upper side surface of the lower end stop.

In one embodiment of the present utility model, the lower side surface of the upper end and the upper side surface of the lower end are curved surfaces protruding outward of the upper end and the lower end, respectively. The lower surface of the upper stopper is a curved surface protruding outward of the upper stopper, and the lower surface is a curved surface protruding in a direction extending from the center of gravity of the upper stopper in the extending direction. The upper side surface of the lower upper stop is a curved surface protruding outward of the lower upper stop, and the upper side surface is a curved surface protruding in a direction extending from the center of gravity of the lower upper stop in the extending direction. The arrow in fig. 3 indicates the direction of extension on the face parallel to the fastener tape. The lower side surface of the upper side upper stopper and the upper side surface of the lower side upper stopper are curved surfaces whose intervals gradually expand toward the front side in the front-back direction and protrude in the extending direction. Thus, when the slider is attached to and detached from one of the fastener stringers through the gap, the flanges of the slider slide on the lower side surface of the upper end stop and the upper side surface of the lower end stop, which are convex curved surfaces, respectively, so that the slider is more easily guided in the passing direction of the gap.

In one embodiment of the present utility model, the cross section of each of the upper side upper stopper and the lower side upper stopper parallel to the fastener tape is gradually reduced from the fastener tape side to the front side in the front-back direction. Since the cross sections of the upper stopper and the lower stopper parallel to the fastener tape are gradually reduced toward the front side in the front-back direction, the upper stopper and the lower stopper each include a side surface which is not perpendicular to the fastener tape.

In one embodiment of the present utility model, the peripheral side surface including the lower side surface in the upper side upper stop is a curved surface protruding outward of the upper side upper stop. In this case, the peripheral side surface of the upper end is not perpendicular to the fastener tape, and the entire side surface of the upper end is rounded. In one embodiment of the present utility model, the peripheral side surface including the upper side surface in the lower upper stop is a curved surface protruding outward of the lower upper stop. In this case, the peripheral side surface of the lower end stop is not perpendicular to the fastener tape, and the entire side surface of the lower end stop is rounded. Further, when the cross sections of the upper stopper and the lower stopper parallel to the fastener tape are gradually reduced toward the front side in the front-back direction, and the peripheral side surfaces of the upper stopper and the lower stopper are curved surfaces protruding outward, the entire front sides of the upper stopper and the lower stopper in the front-back direction of the fastener tape are rounded.

In one embodiment of the present utility model, the lower side surface of the upper stopper is inclined downward from one end of one of the left and right directions to one end of the other side of the left and right directions, and the lower side surface includes a first inclined surface of the one side of the left and right directions, a second inclined surface of the other side of the left and right directions having an inclination angle different from that of the first inclined surface, and a concave portion recessed upward between the first inclined surface and the second inclined surface. By providing the recess between the first inclined surface and the second inclined surface of the lower surface of the upper stopper, when the slider is attached to one of the fastener stringers with the minimum gap provided between the upper surface and the lower surface, the upper end of the flange of the slider (see reference numeral 55a in fig. 8) falls into the recess, and the slider is rotated about the upper end of the flange falling into the recess (see arrow in fig. 8), whereby the attachment direction of the slider can be changed to the direction along the longitudinal direction of the fastener stringer. Further, since the lower surface of the upper stopper is inclined upward and leftward and rightward, the interval in the upward and downward direction between the upper stopper and the lower stopper is increased toward one side in the leftward and rightward direction, and the slider is easily moved from one side to the other side through the gap.

In one embodiment of the present utility model, a radius of curvature R1 of the upper side surface of the lower end is 0.6mm or more and 2.2mm or less. The lower side surface of the upper side upper stopper and the upper side surface of the lower side upper stopper are curved surfaces gradually separated from each other toward the front side in the front-back direction and protruding outward of each of the upper side upper stopper and the lower side upper stopper. Referring to fig. 10, if the radius of curvature R1 of the upper surface 23a of the lower upper stopper 20 is set to be less than 0.6mm, it is difficult for the flange (refer to symbol 55a of fig. 8) of the slider to pass through the gap between the lower surface of the upper stopper and the upper surface of the lower upper stopper. Further, the lower upper stopper is formed to encase the first element at the upper end of the element, but if R1 is greater than 2.2mm, the lower upper stopper is difficult to encase the first element.

Effects of the utility model

In the present utility model, the lower side surface of the upper end and the upper side surface of the lower end are gradually widened toward the front side in the front-back direction, so that the gap is widened toward the front side in the front-back direction. Thus, by providing the minimum required clearance, even if the upper and lower flanges of the slider are inclined with respect to the fastener tape when one of the fastener stringers is attached and detached, the slider is easy to pass between the lower side surface of the upper end and the upper side surface of the lower end.

Drawings

FIG. 1 is a plan view of a split top-stop slide fastener of the present utility model cut in the longitudinal direction (up-down direction) and showing the upper portion thereof;

FIG. 2 is a perspective view of a right side zipper stringer with a region including a split top stop cut away and shown;

FIG. 3 is a plan view of a right side zipper stringer with a region including a split top stop cut away and shown;

FIG. 4 is a bottom view of the right side zipper stringer with the area including the split top stop cut away and shown;

FIG. 5 is a side view of the right side zipper stringer with the area including the split top stop cut away and shown;

fig. 6 is a plan explanatory view showing a process of attaching a slider to a right side fastener stringer;

fig. 7 is a plan explanatory view showing a process of attaching a slider to a right side fastener stringer;

fig. 8 is a plan explanatory view showing a process of attaching a slider to a right side fastener stringer;

fig. 9 is a plan explanatory view showing a process of attaching a slider to a right side fastener stringer;

FIG. 10 is a sectional view of the split top stop along line A-A of FIG. 3, with the back surface portion of the top stop and the zipper strip omitted.

Detailed Description

The embodiments of the present utility model will be described below with reference to the drawings, but the present utility model is not limited to the described embodiments, and can be appropriately modified within the scope and equivalents of the claims. Fig. 1 is a plan view of a slide fastener 100 including a split top stop 1 according to the present utility model, which is cut in the longitudinal direction (up-down direction) and shows an upper portion thereof. In the present specification, unless otherwise specified, "upper" of the slide fastener 100 and the split upper stopper 1 means an upper portion in the longitudinal direction of the slide fastener 100, and "lower" means a lower portion in the longitudinal direction.

The slide fastener 100 includes a pair of right and left slide fastener stringers 40a, 40b which are long in the longitudinal direction, and a slider 50 which can open and close the right and left slide fastener stringers 40a, 40b. The left and right fastener stringers 40a, 40b include left and right fastener tapes 41 and element rows 42 each including one or a plurality of elements 42a, and the elements 42a are attached to opposite edge portions of the left and right fastener tapes 41. The element row 42 shown in fig. 1 is formed of a coiled monofilament made of a thermoplastic resin such as polyamide or polyester, but the present utility model is not limited thereto, and the element row 42 may be formed of a plurality of elements 42a made of metal or the like. A core rope 43 is provided on the opposite edge portions of the front surface of each fastener tape 41, and the core rope 43 is used to improve the attachment strength of the fastener element 42a and the upper stops 1 and 2 described later. The thickness of the core string 43 is larger than the thickness of the fastener tape 41, and thus the core string 43 protrudes from the surface of the fastener tape 41. A separable top stop 1 is provided on a right side fastener stringer (hereinafter, simply referred to as "right stringer") 40b adjacent to an upper end of a fastener element row 42. An undivided upper stopper 2 is provided on the left side fastener stringer 40a adjacent to the upper end of the element row 42. The separable top stop 1 and the top stop 2 are formed by injection molding or extrusion molding a thermoplastic resin such as nylon, polyacetal, polyamide, polypropylene, polybutylene terephthalate, or the like onto the fastener tape 41, for example, but are not limited thereto. The split top stop 1 and the top stop 2 are provided across the core string 43 of the opposite edge portions of the fastener tape 41 in the left-right direction. In fig. 1, the insert pin and the insert box provided below the slide fastener 100 are omitted. When the user moves the slider 50 upward, the element rows 42 of the left and right fastener stringers 40a, 40b are closed, and when the slider 50 is moved downward, the element rows 42 are opened. The split upper stop 1 and the upper stop 2 limit the slider 40 from further upward movement.

The slider 50 includes an upper blade 51, a lower blade 52 (see fig. 6, etc.), and a guide post 53 (see fig. 6, etc.) connecting the upper and lower blades 51, 52. A Y-shaped element guide path 54 is defined between the upper and lower flanges 51, 52 (see fig. 6, etc.). The element guide path 54 opens to a rear opening 54a of the slider 50 and to two shoulder openings 54b adjacent to each other on the left and right of the guide post 53. The upper blade 51 and the lower blade 52 include flanges 55 (55 a) for defining the width of the element guide path 54 in the lateral direction (see fig. 6, etc.). The flange 55 restrains the fastener element 42a in the fastener element guide path 54, and prevents the fastener tape 41 from being separated from the gap between the flanges 55 of the upper and lower flanges 51, 52 to the outside of the fastener element guide path 54.

In the slide fastener 100, the left side fastener stringer 40a and the right side stringer 40b can be separated by pulling down the slider 50 to the lower end position, pulling out a not-shown insert pin from the box, and pulling up the insert pin through the element guide path 54 of the slider 50. In this state, the slider 50 remains on the right side member 40b. In this state, the slider 50 can be removed from the right side member 40b by the split top stopper 1 as described below. Further, the new or repaired slider 50 can be mounted to the right side member 40b by the split top stop 1.

Fig. 2 to 5 are perspective, plan, bottom and side views showing a cut-away section of the right side member 40b including the split top end 1. Hereinafter, unless otherwise indicated, the front-back direction of the split top stop 1 refers to the direction perpendicular to the up-down direction (longitudinal direction of the right side member 40 b) and the left-right direction (width direction of the right side member 40 b), respectively (thickness direction of the right side member 40 b), the front side in the front-back direction refers to the side away from the fastener tape 41 of the right side member 40b toward the upper wing plate 51 side of the slider 50, and the back side in the front-back direction refers to the side away from the fastener tape 41 toward the lower wing plate 52 side of the slider 50.

The split top stopper 1 includes a top stopper 10 and a bottom top stopper 20 disposed below the top stopper 10 with a gap 30 therebetween. The upper end stop 10 cannot pass through the element guide passage 54 of the slider 50. The lower upper stop 20 can just pass the element guide way 54. That is, the front-back direction thickness of the lower upper stopper 20 is slightly smaller than the interval between the upper wing plate 51 and the lower wing plate 52 of the slider 50, and furthermore, is sized to pass through between the rear opening 54a of the element guide path 54 and one of the (right) shoulder openings 54b. On the right side member 40b in a state separated from the left side fastener stringer 40a, the slider 50 can be attached or detached through the gap 30 between the upper side upper stopper 10 and the lower side upper stopper 20. Hereinafter, the gap 30 is referred to as "slider channel 30". Slider channel 30 is provided with a minimum spacing to allow slider 50 to be moved in and out so that slider 50 does not inadvertently become disengaged from right stringer 40b by split top stop 1 during normal use of zipper 100.

The upper top 10 includes a front surface portion 10A protruding from the fastener tape 41 of the right side member 40B toward the front side, and a back surface portion 10B protruding toward the back side of the fastener tape 41. The lower upper stopper 20 is formed to encase the element 42a of the upper end of the right side member 40b at the time of molding. Therefore, the lower upper stopper 20 has high adhesive strength to the fastener tape 41. In contrast, the upper end stop 10 does not encase the element 42a. Therefore, by forming the back surface portion 10B connected to the front surface portion 10A on the back surface 41a (see fig. 5) of the fastener tape 41, the adhesion strength of the upper end stop 10 to the fastener tape 41 is improved. Referring to fig. 3, etc., the left side portion of the front surface portion 10A and the back surface portion 10B is offset to the left side by about one third in the left-right direction from the fastener tape 41, and about two thirds of the right side portion is disposed on the fastener tape 41. The front surface portion 10A and the back surface portion 10B are disposed so that the core string 43 of the fastener tape 41 is located substantially at the middle portion in the lateral direction. The back surface portion 10B is connected directly to the upper about two-thirds of the surface portion 10A or by a fastener tape 41. Therefore, a lower about one third portion of the surface portion 10A protrudes downward from the back surface portion 10B. Hereinafter, for convenience, the boundary between the front surface portion 10A and the rear surface portion 10B is referred to as a boundary surface 11a. The surface portion 10A has a base surface 11 including a boundary surface 11a with the back surface portion 10B, a top surface 12 away from the base surface 11 toward 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. As can be seen from fig. 5, the base surface 11 of the front surface portion 10A is provided substantially along the back surface 41a of the fastener tape 41. The top surface 12 is flat in fig. 5 and 10, but strictly speaking, it is a curved surface slightly protruding toward the front side in the front-back direction (or the extending direction of the upper end 10). The cross section of the surface portion 10A parallel to the fastener tape 41 gradually decreases from the base surface 11 toward the top surface 12. The peripheral side surface 13 extends in a curved manner in the front-back direction from the base surface 11 side toward the top surface 12 side. The peripheral side surface 13 is a curved surface protruding outward of the surface portion 10A, that is, in the extending direction of the upper end 10 (see arrow in fig. 3). The extending direction of the upper end 10 means a direction extending outward from the center of gravity of the upper end 10, and the extending direction of the lower end 20 means a direction extending outward from the center of gravity of the lower end 20. In fig. 3, arrows extending outward from the central portions of the upper and lower upper stops 10 and 20 indicate a part of the extending directions of the upper and lower upper stops 10 and 20 on the surfaces parallel to the fastener tape 41.

The peripheral side surface 13 of the front surface portion 10A includes a lower side surface 13a for defining an upper side of the slider passage 30, a stopper surface 13b adjacent to a right side of the lower side surface 13a, a left side surface 13c adjacent to a left side of the lower side surface 13a, and an upper side surface 13d adjacent to an upper side of each of the left side surface 13c and the stopper surface 13 b. The lower side surface 13a is inclined upward from the right end adjacent to the stopper surface 13b to the left end adjacent to the left side surface 13 c. The stop surface 13b extends upward from the right end adjacent to the lower surface 13a and then to the right to be approximatelyThe character shape. The left side surface 13c extends upward from a lower end adjacent to the lower side surface 13 a. The upper side surface 13d extends rightward from the left end adjacent to the left side surface 13c, and then extends downward rightward from the right end adjacent to the stopper surface 13b in a curved shape. 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-back direction but also in the up-down direction and the left-right direction. Therefore, the surface portion 10A is said to have a rounded shape as a whole. Therefore, the user's finger, clothing, etc. are not easily scratched. In a normal state in which the left and right fastener stringers 40a, 40b are not separated, the stopper surface 13b is a portion for blocking the slider 50 from moving upward, and substantially restricting the slider 50 from moving further upward.

The lower side 13a of the surface portion 10A is inclined downward from its left end to its right end. The lower surface 13a includes a first inclined surface 13aa on the left side, a second inclined surface 13ab on the right side, and a recess 13ac slightly recessed upward between the first inclined surface 13aa and the second inclined surface 13 ab. The inclination angle of the first inclined surface 13aa inclined downward and rightward with respect to the right-left direction is set to be larger than the inclination angle of the second inclined surface 13ab inclined downward and rightward with respect to the right-left direction. The concave portion 13ac is provided at an approximately right-left intermediate point of the left portion of the surface portion 10A that is offset to the left from the fastener tape 41. The length of the recess 13ac in the left-right direction of the first inclined surface 13aa on the left side is about one-fourth of the length of the second inclined surface 13ab on the right side in the left-right direction.

The back surface portion 10B has a bottom surface 14 distant from the boundary surface 11a with the front surface portion 10A toward 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 flat in fig. 5, but strictly speaking, it is a curved surface slightly protruding toward the back side in the front-back direction (or the extending direction of the upper end 10). The cross section of the back surface portion 10B parallel to the fastener tape 41 gradually decreases from the boundary surface 11a toward the bottom surface 14. The peripheral side surface 15 extends in a curved shape in the front-back direction from the boundary surface 11a side to the bottom surface 14 side, and also extends in a curved shape in the up-down direction and the left-right direction. The peripheral side surface 15 is a curved surface protruding in the extending direction (see arrow in fig. 3) of the upper end 10, which is the outside of the back surface 10B. Further, as is clear from fig. 4, the portion of the back surface portion 10B along the boundary surface 11a is formed by bending the left end portion (left end portion on the drawing sheet of fig. 4) of the long circle long in the left-right direction slightly downward (downward left on the drawing sheet of fig. 4). Therefore, the entire back surface portion 10B can be said to be round.

The lower upper stopper 20 protrudes from the fastener tape 41 of the right side member 40b only to the front side in the front-back direction. The lower upper stopper 20 has a left portion of about one third in the left-right direction deviated from the fastener tape 41 to the left, and a right portion of about two thirds arranged on the fastener tape 41. The lower upper stopper 20 has a base surface 21 provided substantially along the back surface 41a of the fastener tape 41, a top surface 22 distant from the base surface 21 toward the front side in the front-back direction, and a peripheral side surface 23 extending between the base surface 21 and the top surface 22. The top surface 22 is a curved surface slightly protruding toward the front side in the front-back direction (or the extending direction of the lower upper stopper 20). The cross section of the lower upper stopper 20 parallel to the fastener tape 41 from the base surface 21 to the top surface 22 gradually decreases toward the front side in the front-back direction. The peripheral side surface 23 extends in a curved shape in the front-back direction from the base surface 21 side toward the top surface 22 side. The peripheral side surface 23 is a curved surface protruding outward from the lower upper stopper 20, i.e., in the extending direction (see arrow in fig. 3).

The peripheral side surface 23 includes an upper side surface 23a for defining 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 lower side surface 23d adjacent to the lower side of each of the left side surface 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 side, and then further extends downward to the right in a curved shape and is connected to the right side surface 23b. The right side surface 23b extends from top to bottom in a substantially vertical direction. The left side surface 23c extends obliquely downward and leftward from an upper end adjacent to the upper side surface 23a to a lower end adjacent to the lower side surface 23d. The lower side surface 23d extends obliquely upward and leftward from a left end adjacent to the left side surface 23c to a 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 up-down direction and the left-right direction. Therefore, the entire lower upper stopper 20 can be said to be round. Therefore, the user's finger, clothing, etc. are not easily scratched.

The slider channel 30 is substantially defined by the lower side 13a of the upper end stop 10 and the upper side 23a of the lower end stop 20. Fig. 10 is a sectional view of the split top stop 1 taken along line A-A of fig. 3, with the back portion 10B of the top stop 10, the fastener tape 41 omitted. The line A-A of fig. 3 passes through the center of gravity of each of the upper end stop 10 and the lower end stop 20. Accordingly, the cross section of each of the lower side surface 13a of the upper end stop 10 and the upper side surface 23a of the lower end stop 20 shown in fig. 10 is a cross section that is provided along substantially one of the extending directions of the upper end stop 10 and the lower end stop 20, among the surfaces parallel to the fastener tape 41. The lower side surface 13a and the upper side surface 23a are gradually separated from each other from the respective base surfaces 11, 21 toward the front side in the front-back direction. Thus, the vertical interval of the slider passage 30 gradually increases from the fastener tape 41 side to the front side in the front-back direction. As described above, the lower side surface 13a and the upper side surface 23a are curved surfaces protruding in the extending direction. Referring to fig. 10, the radius of curvature R1 of the upper surface 23a of the lower upper stopper 20 is set to be 0.6mm or more and 2.2mm or less. If the radius of curvature R1 of the upper side 23a is smaller than 0.6mm, the resin of the upper side 23a may interfere with the slider 50 when the slider 50 passes through the slider channel 30, and the slider 50 cannot pass through the slider channel 30 smoothly. On the other hand, if the radius of curvature R1 is larger than 2.2mm, it is difficult to make the lower upper stopper 20 wrap around the element (first element) 42a at the upper end of the right side member 40b. The radius of curvature R2 of the lower surface 13a of the upper stopper 10 is not particularly limited, and may be set to be substantially the same as the radius of curvature R1 of the upper surface 23 a. As described above, when the slider 50 is attached to or detached from the right side member 40b by setting the minimum slider passage 30 as required, even if the upper and lower flanges 51 and 52 of the slider 50 are inclined with respect to the fastener tape 41, the right flange 55a (see fig. 6 and the like) of the slider 50 can slide on the lower side surface 13a or the upper side surface 23a and the slider 50 can easily pass through the slider passage 30, because the lower side surface 13a of the upper stopper 10 and the upper side surface 23a of the lower upper stopper 20 are convexly curved surfaces. Further, the vertical interval of the slider passage 30 is widened to the left by the second inclined surface 13ab of the upper side surface 23a, and the vertical interval of the slider passage 30 is further widened to the left by the first inclined surface 13aa. Thus, slider 50 is easy to pass through slider channel 30 from left to right.

Fig. 6 to 9 are plan explanatory views showing a process of attaching the slider 50 to the right side member 40b through the slider passage 30, in which the upper blade 51 is omitted and the right side member 40b is cut away to show it. When the slider 50 is attached to the right side member 40b, first, the surface of the slider 50 parallel to the upper and lower flanges 51 and 52 (hereinafter referred to as "slider surface") is provided substantially parallel to the fastener tape 41, the center line CL of the slider 50 is inclined at about 60 degrees with respect to the upper and lower lines (not shown) provided along the up-down direction of the right side member 40b, and the rear opening 54a of the slider 50 is brought close to the lower upper stopper 20. At the point in time of fig. 6, the lower end of the right flange 55a of the slider 50 enters the slider channel 30, and the lower upper stopper 20 partially enters the element guide path 54 of the slider 50 from the rear opening 54 a. At this time, the lower side surface 13a of the upper stopper 10 and the upper side surface 23a of the lower upper stopper 20 are convexly curved surfaces curved in the front-back direction, the left-right direction, and the up-down direction, and the lower side surface 13a is inclined upward and leftward, so that the right flange 55a easily passes through the slider passage 30. Further, since the distance between the lower side surface 13a and the upper side surface 23a gradually increases toward the front side in the front-back direction, even if the slider surface is inclined with respect to the fastener tape 41, the right flange 55a of the slider 50 can easily and smoothly pass through the slider passage 30, and the right flange 55a slides on the lower side surface 13a or the upper side surface 23a and is guided to the right side of the slider passage 30. When the slider 50 is pushed in at the time point of fig. 6, the right flange 55a of the slider 50 enters the slider passage 30 deeper, and the entire lower upper stopper 20 enters the element guide path 54 as shown in fig. 7. At this point in time, the upper half of the right flange 55a follows the first inclined surface 13aa of the lower side surface 13a of the upper stopper 10.

When slider 50 is pushed further at the point of time of fig. 7, the upper end of right flange 55a of slider 50 falls into recess 13ac of lower surface 13a of upper stopper 10 as shown in fig. 8. The slider 50 is rotated about the upper end of the right flange 55a that falls into the recess 13ac so that the center line CL approaches the upper and lower lines of the right side member 40b (see arrows in fig. 8). Thus, as shown in fig. 9, the right flange 55a of the slider 50 passes through the slider channel 30, and the lower upper stopper 20 approaches the right shoulder 54b of the element guide 54. Then, slider 50 is moved downward. Thus, the lower upper stopper 20 is withdrawn from the right shoulder 54b of the slider 50 to the outside of the slider 50, and the element row 42 connected to the lower side of the lower upper stopper 20 is inserted into the element guide path 54 from the rear opening 54a of the slider 50. Thereby, the attachment of slider 50 to right side member 40b is completed. By reversing the above steps, slider 50 can be removed from right side member 40b.

Symbol description:

1. split type upper stop;

2. an upper stop;

10. the upper side is stopped;

10A surface portion;

10B back face portion;

11. a base surface;

11a boundary surface;

12. a top surface;

13. a peripheral side surface;

13a lower side;

13aa first inclined surface;

13ab second inclined surface;

13ac recess;

20. the lower side is stopped upwards;

21. a base surface;

22. a top surface;

23. a peripheral side surface;

23a upper side;

30. gap (slider channel);

a zipper stringer on the left side of 40 a;

40b right zipper stringer;

41. a fastener tape;

42. a fastener element row;

42a teeth;

43. a core rope;

50. a pull head;

51. an upper wing plate;

52. a lower wing plate;

53. a guide post;

54. a fastener element guide path;

54a posterior port;

54b shoulder opening;

55. a flange;

55a right flange;

100. and (5) a zipper.

Claims (7)

1. A split top stopper (1) provided on one of right and left fastener stringers (40 a, 40 b) in a slide fastener (100) comprising the right and left fastener stringers (40 a, 40 b) and a slider (50), the slider (50) being for opening and closing the right and left fastener stringers (40 a, 40 b), characterized in that,

the split top stop (1) comprises a top stop (10) and a bottom stop (20) which is arranged below the top stop (10) with a gap (30) therebetween and can pass through a fastener guide path (54) of the slider (50),

through the gap (30), the slider (50) can be mounted on one of the fastener stringers (40 b) or removed from one of the fastener stringers (40 b),

the gap (30) is defined by a lower side (13 a) of the upper end stop (10) and an upper side (23 a) of the lower end stop (20),

the lower side surface (13 a) of the upper side upper stopper (10) and the upper side surface (23 a) of the lower side upper stopper (20) are gradually separated from each other toward the front side in the front-back direction, so that the gap (30) is widened toward the front side in the front-back direction.

2. The split top stop of claim 1, wherein,

the lower side surface (13 a) of the upper side upper stopper (10) and the upper side surface (23 a) of the lower side upper stopper (20) are curved surfaces protruding outward of the upper side upper stopper (10) and the lower side upper stopper (20), respectively.

3. The split top stop according to claim 1 or 2, wherein,

the cross sections of the upper side upper stopper (10) and the lower side upper stopper (20) parallel to the fastener tape (41) are gradually reduced from the fastener tape (41) to the front side in the front-back direction.

4. A split top stop as claimed in any one of claims 1 to 3, wherein,

the peripheral side surface (13) of the upper side upper stopper (10) including the lower side surface (13 a) is a curved surface protruding outward of the upper side upper stopper (10).

5. The split top stop of any one of claims 1 to 4, wherein,

the peripheral side surface (23) of the lower upper stopper (20) including the upper side surface (23 a) is a curved surface protruding outward of the lower upper stopper (20).

6. The split top stop of any one of claims 1 to 5, wherein,

the lower side surface (13 a) of the upper side upper stopper (10) is inclined downward from one end of one side in the left-right direction to one end of the other side in the left-right direction, the lower side surface (13 a) includes a first inclined surface (13 aa) on the one side in the left-right direction, a second inclined surface (13 ab) on the other side in the left-right direction, which is inclined at an angle different from that of the first inclined surface (13 aa), and a concave portion (13 ac) recessed upward between the first inclined surface (13 aa) and the second inclined surface (13 ab).

7. The split top stop of claim 2, wherein,

the radius of curvature R1 of the upper side surface (23 a) of the lower upper stopper (20) is 0.6mm or more and 2.2mm or less.