Zipper and top stopper for zipper

Abstract

The invention provides a slide fastener and an upper stopper for the slide fastener, wherein a slider can be quickly taken down under the condition that a pair of fastener tapes are kept in a closed state. In a slide fastener (1), a first top stopper (41) is provided so as to be able to approach and separate from the tip (311) of the forefront (F) of first linear elements (31) and so as not to pass through a slider (7), and a second top stopper (42) is provided so as to include the tip (321) of the forefront (F) of second linear elements (32) and so as to be able to pass through the slider (7).

Description

Technical Field

[0001] The present invention relates to a zipper for preventing a slider for opening and closing a pair of zipper tapes from falling off during daily use, and an upper stop for the zipper. Background Art

[0002] In recent years, in the clothing industry, the fashion loss caused by a large amount of waste generated after mass production and mass consumption has become a social problem. As one of the countermeasures, in the clothing industry, measures for clothing recycling are taken to return old clothes into fibrous form for recycling. A large number of clothes are also equipped with zippers. A zipper includes a pair of zipper tapes and a slider. The zipper tapes made of a resin such as polyester fiber or nylon can be recycled. However, since the slider is mostly made of a material such as metal, it sometimes cannot be recycled together with the resin.

[0003] Prior Art Documents

[0004] Patent Documents

[0005] Patent Document 1: International Publication No. 2021 / 260357

[0006] Patent Document 2: Japanese Utility Model Publication No. 61-105010

[0007] Patent Document 3: Japanese Patent No. 3621014 Summary of the Invention

[0008] Conventionally, a zipper capable of removing a slider from a zipper tape has been disclosed (see Patent Document 1). However, the zipper described in Patent Document 1 is an open product, and is a product for removing a slider when a pair of zipper tapes are in an open state.

[0009] A zipper capable of removing a slider when a pair of zipper tapes are in a closed state has also been disclosed (see Patent Document 2). However, for the zipper described in Patent Document 2, when removing the slider from a pair of zipper tapes, a part of the upper stop must be removed, which is very troublesome.

[0010] The present invention has been made in view of the above problems, and an object thereof is to provide a zipper capable of quickly removing a slider while a pair of zipper tapes are kept in a closed state, and an upper stop for the zipper.

[0011] Means for Solving the Problems

[0012] The zipper of the present invention is characterized by comprising:

[0013] A zipper chain, the zipper chain including a left and right pair of first and second zipper tapes, and first and second resin-made line chain teeth being respectively assembled on first and second side edges of the left and right pair of first and second zipper cloth tapes;

[0014] A slider through which the first and second row of chain teeth pass to open and close the first and second zipper tapes.

[0015] A bottom stop that connects the first and second zipper tapes behind the first and second zipper tapes.

[0016] A first top stop that is mounted on the first zipper tape in front of the first row of chain teeth; and

[0017] A second top stop that is mounted on the second zipper tape in front of the second row of chain teeth,

[0018] The first top stop is configured to be able to approach and move away from the frontmost end portion of the first row of chain teeth, and has a shape that cannot pass through the slider.

[0019] The second top stop is configured to include the frontmost end portion of the second row of chain teeth and has a shape that can pass through the slider.

[0020] Advantages of the Invention

[0021] According to the top stop and the zipper of the present invention, the slider can be quickly removed while the pair of zipper tapes remain closed. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 Shows the zipper 1 of the present embodiment as viewed from above.

[0023] Figure 2 Shows the zipper 1 of the present embodiment as viewed from below.

[0024] Figure 3 Shows an enlarged view of Figure 1 the vicinity of the first top stop 41.

[0025] Figure 4 Shows a sectional view taken along line IV-IV as viewed from the arrow direction Figure 3 of.

[0026] Figure 5 Shows the first top stop 41 of the zipper 1 of the present embodiment as viewed from above.

[0027] Figure 6 Shows the first top stop 41 of the zipper 1 of the present embodiment as viewed from below.

[0028] Figure 7 Shows the first top stop 41 of the zipper 1 of the present embodiment as viewed from the right.

[0029] Figure 8 The second upper stop 42 of the zipper 1 of the present embodiment as viewed from above is shown.

[0030] Figure 9 The slider 7 of the present embodiment is shown.

[0031] Figure 10 The zipper 1 in the closed state of the present embodiment as viewed from above is shown.

[0032] Figure 11 The zipper 1 in the closed state of the present embodiment as viewed from below is shown.

[0033] Figure 12 The vicinity of the slider 7 of the zipper 1 as viewed through the upper wing plate 71a of the present embodiment is shown.

[0034] Figure 13 The first process of removing the slider 7 from the zipper chain 10 in the zipper 1 of the present embodiment is shown.

[0035] Figure 14 The second process of removing the slider 7 from the zipper chain 10 in the zipper 1 of the present embodiment is shown.

[0036] Figure 15 The third process of removing the slider 7 from the zipper chain 10 in the zipper 1 of the present embodiment is shown.

[0037] Figure 16 The zipper chain 10 after removing the slider 7 in the zipper 1 of the present embodiment is shown. Detailed Embodiment

[0038] Hereinafter, preferred embodiments of the present invention will be specifically described with reference to the accompanying drawings.

[0039] Figure 1 The zipper 1 of the present embodiment as viewed from above is shown. Figure 2 The zipper 1 of the present embodiment as viewed from below is shown.

[0040] The zipper 1 of the present embodiment includes a zipper chain 10, an upper stop 4, a lower stop 5, and a slider 7. The zipper chain 10 has a first zipper tape 11 and a second zipper tape 12.

[0041] The first zipper tape 11 has a first linear zipper teeth 31 made of resin and a first zipper cloth tape 21 on which the first linear zipper teeth 31 are mounted. The first zipper cloth tape 21 has a first surface 21a and a first back surface 21b, and the first linear zipper teeth 31 are mounted on the surface 21a. The second zipper tape 12 has a second linear zipper teeth 32 made of resin and a second zipper cloth tape 22 on which the second linear zipper teeth 32 are mounted. The second zipper cloth tape 22 has a second surface 22a and a second back surface 22b, and the second linear zipper teeth 32 are mounted on the surface 22a.

[0042] The first upper stop 41 is mounted in front F of the first linear zipper teeth 31. The second upper stop 42 is mounted in front F of the second linear zipper teeth 32. The lower stop 5 connects the first zipper cloth tape 21 and the second zipper cloth tape 22 behind B of the first linear zipper teeth 31 and the second linear zipper teeth 32.

[0043] It should be noted that, in the following description, the direction in which the first linear zipper teeth 31 and the second linear zipper teeth 32 are arranged in the length direction of the zipper chain 10 is defined as the front-back direction F-B, the side of the upper stop 4 is defined as the front F, and the side of the lower stop 5 is defined as the back B. In addition, the direction in which the left and right first linear zipper teeth 31 and second linear zipper teeth 32 are engaged by pulling the slider 7 can be defined as the front F, and the direction in which the left and right first linear zipper teeth 31 and second linear zipper teeth 32 are separated by pulling the slider 7 can be defined as the back B. And, the left-right direction L-R is a direction on the surface of the zipper chain 10 that is horizontally perpendicular to the front-back direction. The direction perpendicular to the plane defined by the front-back direction F-B and the left-right direction L-R is defined as the up-down direction U-D. The side of the zipper chain 10 where the tab 72 exists with respect to the main body 71 of the slider 7 is defined as the upper side U, and the opposite side is defined as the lower side D. For the left-right direction L-R, the left side when viewed from above is defined as the left side L, and the right side when viewed from above is defined as the right side R. It should be noted that if the up-down direction U-D is used as the front-back direction, the upper side U can also be referred to as the front side, and the lower side D can be referred to as the back side.

[0044] The zipper chain 10 is configured such that the first linear zipper teeth 31 and the second linear zipper teeth 32 face each other in the left-right direction L-R. The linear zipper teeth 3 in the present embodiment are preferably formed of coil-shaped monofilaments made of a thermoplastic resin such as polyamide or polyester fiber. The first linear zipper teeth 31 are formed into a coil shape by repeatedly forming a first engaging head 31a, a first leg 31b, a first reversing portion 31c, and a first leg 31b. The second linear zipper teeth 32 are formed into a coil shape by repeatedly forming a second engaging head 32a, a second leg 32b, a second reversing portion 32c, and a second leg 32b.

[0045] The first and second core cords 21c and 22c formed by twisting multifilaments of thermoplastic resins such as polyamide and polyester fiber are respectively inserted into the coiled first wire chain teeth 31 and second wire chain teeth 32. It should be noted that the coiled wire chain teeth 3 can also be made of synthetic fiber sewing silk thread and sewn and fixed to the surfaces of the side edges 21d and 22d of the zipper tape 2 by double loop sewing. In addition, the first and second core cords 21c and 22c may not be used.

[0046] Figure 3 The figure showing an enlarged view of Figure 1 the vicinity of the first upper stop 41. Figure 4 The figure showing the IV-IV cross-section viewed from the arrow direction of Figure 3 the same.

[0047] A part of the first leg 311b of the foremost end portion 311 of the first wire chain teeth 31 in the present embodiment is cut. And the remaining first leg 311b is fixed at a position inside the first side edge 21d of the first zipper tape 21. The first zipper tape 21 and the first wire chain teeth 31 are fixed in such a way that the first leg 311b does not protrude from the first side edge 21d of the first zipper tape 2.

[0048] For the fixation of the first zipper tape 21 and the first wire chain teeth 31, as Figure 4 shown, while holding the first leg 311b of the foremost end portion 311 of the first wire chain teeth 31 at a position inside the first side edge 21d of the first zipper tape 21, the foremost first leg 311b of the first wire chain teeth 31, the first reverse portion 311c, and the first core cord 21c are heated and pressed onto the first zipper tape 21. The heating and pressing can be carried out by ultrasonic processing, high-frequency processing, etc. to crush and fuse, or by a laser beam or a heating body with an electric heater built-in for fusing. Through heating and pressing, the first leg 311b and the first core cord 21c respectively form a fused portion 311d and a fused portion 21c1, thereby fixing the first wire chain teeth 31 and completing the first zipper chain tape 11.

[0049] According to this embodiment, the first leg 311b exists below D of the first wire chain teeth 31, and the first leg 311b below D is in face-to-face contact with the first zipper tape 21. Thus, the fused portion 311d formed by the first leg 311b and the first reverse portion 311c is in close contact with the first zipper tape 21, and a sense of unity between the first zipper tape 21 and the fused portion 311d can be obtained. It should be noted that the fused portion 311d can also be formed by the method described in Patent Document 3.

[0050] In addition, an upper stop member 4 is fixed to the front F of the first row of chain teeth 31 and the second row of chain teeth 32, and a lower stop member 5 is fixed to the rear B of the first row of chain teeth 31 and the second row of chain teeth 32. Thereby, the slider 7 is prevented from coming off from the front end and the rear end of the first and second rows of chain teeth 31, 32 during daily use. In the first zipper tape 11, a first upper stop member 41 is provided at a space from the front end portion 311 of the first row of chain teeth 31. In the second zipper tape 12, a second upper stop member 42 is provided in contact with the front end of the second row of chain teeth 32.

[0051] The first upper stop member 41 and the second upper stop member 42 are respectively formed, for example, by injection molding or extrusion molding of a thermoplastic resin such as nylon, polyacetal, polyamide, polypropylene, polybutylene terephthalate, etc. with respect to the first zipper cloth tape 21 and the second zipper cloth tape 22, but are not limited thereto.

[0052] When the user moves the slider 7 forward F, the first and second rows of chain teeth 31, 32 of the pair of zipper tapes 11, 12 are closed, and when the user moves the slider 7 backward B, the first and second rows of chain teeth 31, 32 are opened. The first upper stop member 41 and the second upper stop member 42 restrict the forward movement F of the slider 7.

[0053] Figure 5 The first upper stop member 41 of the zipper 1 of the present embodiment as viewed from above is shown. Figure 6 The first upper stop member 41 of the zipper 1 of the present embodiment as viewed from below is shown. Figure 7 The first upper stop member 41 of the zipper 1 of the present embodiment as viewed from the right is shown.

[0054] The first upper stop member 41 of the present embodiment has: a first front surface portion 41a bulging toward the front side from the first zipper cloth tape 21 of the first zipper tape 11; a first back portion 41b bulging toward the back side of the first zipper cloth tape 21; a reference surface 41c where the first back portion 41b is not formed on the back side of the first front surface portion 41a; and a cloth tape contact surface 41d in contact with the first zipper cloth tape 21. The first upper stop member 41 does not include the front end portion 311 of the first row of chain teeth 31 at the upper end. Therefore, by forming the first back portion 41b connected to the first front surface portion 41a on the first back surface 21b of the first zipper cloth tape 21, the adhesion strength of the first upper stop member 41 with respect to the first zipper cloth tape 21 is improved.

[0055] As Figure 5 shown, the first front surface portion 41a of the present embodiment has: a first front top surface 41a1 which is a substantially rectangular parallelepiped shape with chamfered diagonals; and a first front tapered portion 41a2 which extends from the first front top surface 41a1 backward B and Figure 3The guide post 71c side of the slider 7 shown protrudes, and the farther it moves away from the first front top surface 41a1 toward the outside, the thinner the thickness from the reference plane 41c is than the first front top surface 41a1. The first front top surface 41a1 can be either a flat surface or a curved surface that bulges upward. The cross-sectional area of the first front portion 41a parallel to the first zipper tape 21 gradually decreases from the reference plane 41c toward the first front top surface 41a1.

[0056] As Figure 6 shown, the first back portion 41b of the present embodiment has: a first back top surface 41b1 which is a substantially semi-circular shape with chamfers at the diagonals; and a first back tapered portion 41b2 which protrudes right rearward from the first back top surface 41b1, and the farther it moves away from the first back top surface 41b1 toward the outside, the thinner the thickness from the first zipper tape 21 and the reference plane 41c is than the first back top surface 41b1. The first back top surface 41b1 can be either a flat surface or a curved surface that bulges upward. The cross-sectional area of the first back portion 41b parallel to the first zipper tape 21 and the reference plane 41c gradually decreases as it faces the first back top surface 41b1. The first back portion 41b is directly connected to approximately the left front half of the first front portion 41a, or is connected via the first zipper tape 21. Therefore, approximately the right rear half of the first front portion 41a is not connected to the first back portion 41b.

[0057] As Figure 7 shown, the first front side surface 41e of the first front portion 41a of the present embodiment includes a rear side surface 41e1 at the rear B and a first column side surface 41e2 on the side of the second zipper tape 22 at the right R. The rear side surface 41e1 and the first column side surface 41e2 are formed in a concave shape. The first back side surface 41f of the first back portion 41b of the present embodiment includes an inclined surface 41f1 that slopes from the upper right to the lower left. The inclined surface 41f1 is formed in a concave shape along at least a part of the outer end of the lower wing plate 71b on the front mouth 81 side. It should be noted that the rear side surface 41e1, the first column side surface 41e2, and the inclined surface 41f1 of the first upper stop 41 do not need to be concave, and can be any surface such as a flat surface, a curved surface, or a bent surface.

[0058] Figure 8 The second upper stop 42 of the zipper 1 of the present embodiment as viewed from above is shown.

[0059] The second upper stop 42 of the present embodiment has a second front portion 42a that bulges upward U-shaped from the second surface 22a of the second zipper tape 22 of the second zipper chain 12. The second upper stop 42 improves the adhesion strength to the second zipper tape 22 by including the front end portion 321 of the second string teeth 32. The second upper stop 42 is not formed on the second back surface 22b side of the second zipper tape 22.

[0060] AsFigure 8 As shown, the second table portion 42a of the present embodiment has: a second table top surface 42a1 which is a substantially rectangular parallelepiped shape with chamfered diagonals; and a second table tapered portion 42a2 which becomes thinner with respect to the thickness of the second zipper tape 22 as it moves further outward from the left rear of the second table top surface 42a1. The second table top surface 42a1 may be a flat surface or a curved surface that bulges upward. The cross-sectional area of the second table portion 42a parallel to the second zipper tape 22 may gradually decrease from the second zipper tape 22 toward the second table top surface 42a1.

[0061] The second table portion side surface 42e of the second stopper 42 of the present embodiment includes a flange side surface 42e1 on the right side R and a second column side surface 42e2 on the left side L. The flange side surface 42e1 and the second column side surface 42e2 of the second table portion side surface 42e may be formed in a concave shape. That is, at least one surface in the left-right direction L-R of the second table portion side surface 42e is preferably formed in a concave shape. By providing the gate when molding the second stopper 42 on the portion formed in a concave shape, even if burrs are generated, it is not easy to touch the burrs. It should be noted that the flange side surface 42e1 and the second column side surface 42e2 of the second stopper 42 do not need to be concave and may be any type of surface such as a flat surface, a curved surface, or a bent surface.

[0062] Figure 9 The slider 7 of the present embodiment is shown.

[0063] The slider 7 has a main body 71 and a pull tab 72 for pulling the main body 71. The main body 71 has an upper wing plate 71a, a lower wing plate 71b, and a guide post 71c connecting the front portions of the upper wing plate 71a and the lower wing plate 71b. The upper wing plate 71a has a first upper flange 71a1 extending downward D from one end in the left-right direction L-R and a second upper flange 71a2 extending downward D from the other end. The lower wing plate 71b has a first lower flange 71b1 extending upward U from one end in the left-right direction L-R and a second lower flange 71b2 extending upward U from the other end.

[0064] The slider 7 forms a front opening 81 at the front end F, a rear opening 82 at the rear end B, and a guide passage 83 from the front opening 81 to the rear opening 82. The front opening 81 is defined by the upper wing plate 71a, the lower wing plate 71b, and the guide post 71c. The rear opening 82 is defined by the upper wing plate 71a and the lower wing plate 71b. The guide passage 83 is defined by the upper wing plate 71a, the lower wing plate 71b, the guide post 71c, the first upper flange 71a1, the second upper flange 71a2, the first lower flange 71b1, and the second lower flange 71b2.

[0065] Figure 10The zipper 1 in the closed state of the present embodiment as viewed from above is shown. Figure 11 The zipper 1 in the closed state of the present embodiment as viewed from below is shown. Figure 12 The slider 7 of the zipper 1 as viewed through the upper wing plate 71a of the present embodiment is shown. It should be noted that for ease of understanding, Figure 12 the first upper flange 71a1 and the second upper flange 71a2 of the upper wing plate 71a of the slider 7 are left in the figure.

[0066] When the first zipper tape 11 and the second zipper tape 12 are not separated, the rear side surface 41e1 of the first upper stop 41 of the present embodiment abuts against the first upper flange 71a1 of the upper wing plate 71a of the slider 7 to restrict the forward movement of the slider 7 in the forward direction F.

[0067] The first back side surface 41f of the first back portion 41b of the present embodiment includes an inclined surface 41f1 that slopes from the upper right to the lower left. The inclined surface 41f1 is formed in a concave shape, and when the first zipper tape 11 and the second zipper tape 12 are not separated, the inclined surface 41f1 abuts against the left front end of the lower wing plate 71b of the slider 7 to restrict the forward movement of the slider 7 in the forward direction F.

[0068] Since the rear side surface 41e1 of the first upper stop 41 and the inclined surface 41f1 abut against the slider 7 to restrict its movement, the first upper stop 41 cannot pass through the guide passage 83 of the slider 7. Thus, when the first zipper tape 11 and the second zipper tape 12 are not separated, the first upper stop 41 restricts the movement of the slider 7, so the position of the slider 7 does not wobble and its position can be appropriately maintained.

[0069] The second front surface side 42e of the second upper stop 42 of the present embodiment includes a flange side surface 42e1 and a second column side surface 42e2. When the first zipper tape 11 and the second zipper tape 12 are not separated, the flange side surface 42e1 is arranged along the second upper flange 71a2 of the slider 7, and the second column side surface 42e2 is arranged along the guide post 71c of the slider 7. The second upper stop 42 can pass through the guide passage 83 of the slider 7.

[0070] Next, a method for removing the slider 7 from the zipper chain 10 in the zipper 1 of the present embodiment will be described.

[0071] Figure 13 The first step of removing the slider 7 from the zipper chain 10 in the zipper 1 of the present embodiment is shown. It should be noted that for ease of understanding, Figure 13 the first and second zipper tapes 21, 22 are omitted.

[0072] When the user wants to remove the slider 7 from the zipper chain 10, first, as shown in Figure 13As shown, the first upper stop member 41 is pulled diagonally forward to the left and passes through the guide passage 83 of the slider 7. At this time, if the user bends the front ear of the zipper chain 10 remaining in front F of the upper stop member 4 backward, twists the pull tab 72 of the slider 7, and moves the first upper stop member 41 outward, it is easier to pass through. Since the first upper stop member 41 is not included in the front end portion 311 of the first row of chain teeth 31, when the first upper stop member 41 is pulled, the first zipper tape 21 between the first upper stop member 41 and the front end portion 311 of the first row of chain teeth 31 extends somewhat, and the first upper stop member 41 passes through the guide passage 83. Here, since the first front surface portion 41a2 is formed on the first front surface 41a of the first upper stop member 41 and the thickness is thinned, the first upper stop member 41 easily passes through the guide passage 83.

[0073] Figure 14 FIG. shows the second step of removing the slider 7 from the zipper chain 10 in the zipper 1 of the present embodiment. It should be noted that, for ease of understanding, Figure 14 the upper wing plate 71a of the main body 71 is omitted.

[0074] Next, as Figure 14 shown, the user moves the first upper stop member 41 to the left L of the first upper flange 71a1 of the slider 7. In this way, the first upper flange 71a1 of the slider 7 is located between the first upper stop member 41 and the front end portion 311 of the first row of chain teeth 31. In other words, the first side edge 21d of the first zipper tape 21 is located between the first upper flange 71a1 and the first lower flange 71b1 of the slider 7.

[0075] At this time, since the rear side surface 41e1 is formed as a concave surface, the first upper stop member 41 easily moves along the first upper flange 71a1 of the slider 7. In addition, since the first column side surface 41e2 is formed as a concave surface, the first upper stop member 41 easily moves along the guide post 71c of the slider 7.

[0076] The second upper stop member 42 enters the guide passage 83 of the slider 7. At this time, since the second front surface portion 42a2 is formed on the second front surface 42a of the second upper stop member 42 and the thickness is thinned, the second upper stop member 42 easily enters the guide passage 83. In addition, since the flange side surface 42e1 is formed as a concave surface, the second upper stop member 42 easily moves along the second upper flange 71a2 of the slider 7. Furthermore, since the second column side surface 42e2 is formed as a concave surface, the second upper stop member 42 easily moves along the guide post 71c of the slider 7.

[0077] Figure 15 FIG. shows the third step of removing the slider 7 from the zipper chain 10 in the zipper 1 of the present embodiment. It should be noted that, for ease of understanding, Figure 15 the upper wing plate 71a of the main body 71 is omitted.

[0078] Next, as Figure 13 shown, the user pulls the slider 7 forward. The first side edge 21d of the first zipper tape 21 passes between the first upper flange 71a1 and the first lower flange 71b1 of the slider 7, and then exits from the rear opening 82. In addition, the second upper stop 42 passes through the guiding passage 83 of the slider 7 and then exits from the rear opening 82.

[0079] Figure 16 The zipper chain 10 after removing the slider 7 in the zipper 1 of the present embodiment is shown.

[0080] Finally, the slider 7 is removed from the zipper chain 10. After that, when the pulling of the first upper stop 41 is stopped, the extension of the first zipper tape 21 is eliminated, and the zipper chain 10 remains in a closed state.

[0081] In this way, the zipper 1 of the present embodiment can quickly remove the slider 7 while the zipper chain 10 remains in a closed state. Thus, the zipper chain 10 from which the slider 7 has been removed can be recycled together with the resin, and can be effectively used for clothing recycling in which clothes are returned to a fibrous state for regeneration.

[0082] In summary, the zipper 1 of the present embodiment includes: a zipper chain 10 including a pair of left and right first and second zipper tapes 11, 12, and the first and second zipper tapes 11, 12 are respectively provided with resin-made first and second line chain teeth 31, 32 on the first and second side edges 21d, 22d; a slider 7 through which the first and second line chain teeth 31, 32 pass and opens and closes between the first and second zipper tapes 11, 12; a lower stop 5 that connects the first and second zipper tapes 11, 12 behind the first and second zipper tapes 11, 12; a first upper stop 41 that is installed on the first zipper tape 21 in front of the first line chain tooth 31; and a second upper stop 42 that is installed on the second zipper tape 22 in front of the second line chain tooth 32. The first upper stop 41 is configured to be able to approach and move away from the frontmost F front end portion 311 of the first line chain tooth 31 and has a shape that cannot pass through the slider 7, and the second upper stop 42 includes the frontmost F front end portion 321 of the second line chain tooth 32 and has a shape that can pass through the slider 7.

[0083] Thus, according to the zipper 1 of the present embodiment, the slider 7 can be quickly removed while the zipper chain 10 remains in a closed state. Thus, the zipper chain 10 from which the slider 7 has been removed can be recycled together with the resin, and can be effectively used for clothing recycling in which clothes are returned to a fibrous state for regeneration.

[0084] In addition, in the zipper 1 of the present embodiment, the first upper stop 41 has a first front portion 41a formed on the upper U side of the first zipper tape 21. The first front portion 41a has a first front top surface 41a1 and a first front tapered portion 41a2. The first front tapered portion 41a2 protrudes rearward B and toward the second zipper tape 22 side from the first front top surface 41a1. The farther it is from the first front top surface 41a1, the thinner the distance from the first zipper tape 21 is compared to the first front top surface 41a1.

[0085] Accordingly, in the zipper 1 of the present embodiment, when the first upper stop 41 is passed through the slider 7, the situation where the first upper stop 41 gets caught on the slider 7 is reduced.

[0086] In addition, in the zipper 1 of the present embodiment, the first upper stop 41 has a first front side surface 41e that forms the side surface of the first front portion 41a. At least one surface on the rearward B side and the second zipper tape 22 side of the first front side surface 41e is formed in a concave shape.

[0087] Accordingly, in the zipper 1 of the present embodiment, when the first upper stop 41 is passed through the slider 7, the situation where the first upper stop 41 gets caught on the slider 7 is reduced.

[0088] In addition, in the zipper 1 of the present embodiment, the first upper stop 41 has a first back portion 41b formed on the lower D side of the first zipper tape 21. The first back portion 41b has a first back top surface 41b1 and a first back side surface 41f that forms the side surface of the first back portion 41b. The rearward B side of the first back side surface 41f is formed as an inclined surface 41f1 that follows at least a part of the front end of the slider 7.

[0089] Accordingly, in the zipper 1 of the present embodiment, during daily use, when the front end of the slider 7 abuts against the inclined surface 41f1 of the first upper stop 41, the slider 7 does not fall off the zipper chain 10.

[0090] In addition, in the zipper 1 of the present embodiment, the slider 7 has a body 71 and a pull tab 72 for pulling the body 71. The body 71 has an upper wing plate 71a, a lower wing plate 71b, and a guide post 71c connecting the front portions of the upper wing plate 71a and the lower wing plate 71b. The upper wing plate 71a has a first upper flange 71a1 extending downward D from one end in the left-right direction L-R and a second upper flange 71a2 extending downward D from the other end. The lower wing plate 71b has a first lower flange 71b1 extending upward U from one end in the left-right direction L-R and a second lower flange 71b2 extending upward U from the other end. The slider 7 forms a front opening 81 at the front F end, a rear opening 82 at the rear B end, and a guide passage 83 from the front opening 81 to the rear opening 82. The front opening 81 is defined by the upper wing plate 71a, the lower wing plate 71b, and the guide post 71c. The rear opening 82 is defined by the upper wing plate 71a and the lower wing plate 71b. The guide passage 83 is defined by the upper wing plate 71a, the lower wing plate 71b, the guide post 71c, the first upper flange 71a1, the second upper flange 71a2, the first lower flange 71b1, and the second lower flange 71b2. The width dimension of the first upper stop 41 in the left-right direction L-R is larger than the width dimension of at least one portion of the guide passage 83 in the left-right direction L-R.

[0091] Thus, in the zipper 1 according to the present embodiment, during daily use, the slider 7 will not fall off the zipper chain 10.

[0092] It should be noted that although various embodiments of the present invention have been described, the present invention is not limited to these embodiments, and embodiments formed by appropriately combining the structures of the respective embodiments also fall within the scope of the present invention.

[0093] 1... zipper,

[0094] 10... zipper chain,

[0095] 11... first zipper tape, 12... second zipper tape,

[0096] 2... zipper cloth tape,

[0097] 21... first zipper cloth tape, 21a... surface, 21b... back surface, 21c... core cord, 21c1... fused portion,

[0098] 22... second zipper cloth tape, 22a... surface, 22b... back surface, 22c... core cord,

[0099] 3... chain teeth,

[0100] 31... first wire chain teeth, 31a... first engaging head, 31b... first leg, 31c... first reversing portion, 311... front end portion, 311b... first leg of the front end portion, 311c... first reversing portion of the front end portion, 311d... fused portion

[0101] 32…Second line chain teeth, 32a…Second engaging head, 32b…Second leg, 32c…First reversing part, 321…Front end part,

[0102] 4…Upper stop piece,

[0103] 41…First upper stop piece,

[0104] 41a…First surface part, 41a1…First surface top surface, 41a2…First surface conical surface,

[0105] 41b…First back part, 41b1…First back top surface, 41b2…First back conical surface,

[0106] 41c…Reference surface, 41d…Cloth tape abutting surface,

[0107] 41e…First surface part side surface, 41e1…Rear side surface, 41e2…First column side surface,

[0108] 41f…First back part side surface, 41f1…Inclined surface,

[0109] 42…Second upper stop piece,

[0110] 42a…Second surface part, 42a1…Second surface top surface, 42a2…Second surface conical surface,

[0111] 42e…Second surface part side surface, 42e1…Flange side surface, 42e2…Second column side surface,

[0112] 5…Lower stop piece,

[0113] 7…Slider,

[0114] 71…Main body,

[0115] 71a…Upper wing plate, 71a1…First upper flange, 71a2…Second upper flange,

[0116] 71b…Lower wing plate, 71b1…First lower flange, 71b2…Second lower flange,

[0117] 71c…Guide post,

[0118] 72…Pull tab

[0119] 81…Front opening, 82…Rear opening, 83…Guide passage

Claims

1. A zipper (1), characterized in that, the zipper (1) comprises: A zipper chain (10), the zipper chain (10) includes a pair of left and right first and second zipper tapes (11, 12), and the first and second zipper tapes (11, 12) are respectively equipped with resin-made first and second line teeth (31, 32) on the first and second side edges (21d, 22d) of a pair of left and right first and second zipper cloth tapes (21, 22); A slider (7), the slider (7) allows the first and second line teeth (31, 32) to pass through and opens and closes between the first and second zipper tapes (11, 12); A lower stop (5), the lower stop (5) connects the first and second zipper tapes (11, 12) behind the first and second zipper tapes (11, 12); A first upper stop (41), the first upper stop (41) is installed on the first zipper cloth tape (21) in front of (F) the first line teeth (31); and A second upper stop (42), the second upper stop (42) is installed on the second zipper cloth tape (22) in front of (F) the second line teeth (32), the first upper stop (41) is arranged to be able to approach and move away from the frontmost (F) front end portion (311) of the first line teeth (31), and is in a shape that cannot pass through the slider (7), the second upper stop (42) is arranged to include the frontmost (F) front end portion (321) of the second line teeth (32) and is in a shape that can pass through the slider (7), wherein, in the length direction of the first and second zipper cloth tapes (21, 22), the side of the upper stop (4) is set as the front (F), the side of the lower stop (5) is set as the rear (B), on the surfaces of the first and second zipper cloth tapes (21, 22), the direction perpendicular to the front-rear direction horizontally is set as the left-right direction (L-R), and the direction perpendicular to the surfaces of the first and second zipper cloth tapes (21, 22) is set as the up-down direction (U-D).

2. The zipper (1) according to claim 1, characterized in that, the first upper stop (41) has a first surface portion (41a) formed on the upper (U) side of the first zipper cloth tape (21), the first surface portion (41a) has a first surface top surface (41a1) and a first surface tapered portion 41a2, and the first surface tapered portion (41a2) protrudes from the first surface top surface (41a1) towards the rear (B) and towards the second zipper cloth tape (22) side, and the farther away from the first surface top surface (41a1), the thinner the distance from the first zipper cloth tape (21) is compared to the first surface top surface (41a1).

3. The zipper (1) according to claim 2, characterized in that, the first upper stop (41) has a first surface portion side surface (41e) forming the side surface of the first surface portion (41a), At least one surface on the rear side (B) of the first tab side (41e) and on the side of the second zipper tape (22) is formed in a concave shape.

4. The zipper (1) according to claim 1, characterized in that the first stop (41) has a first back (41b) formed on the lower (D) side of the first zipper tape (21), the first back (41b) has a first back top surface (41b1) and a first back side surface (41f) forming the side surface of the first back (41b), the rear side (B) of the first back side surface (41f) is formed as an inclined surface (41f1) along at least a part of the front end of the slider (7).

5. The zipper (1) according to claim 1, characterized in that the slider (7) has a body (71) and a pull tab (72) for pulling the body (71), the body (71) has an upper wing plate (71a), a lower wing plate (71b), and a guide post (71c) connecting the front parts of the upper wing plate (71a) and the lower wing plate (71b), the upper wing plate (71a) has a first upper flange (71a1) extending downward (D) from one end in the left-right direction (L-R) and a second upper flange (71a2) extending downward (D) from the other end, the lower wing plate (71b) has a first lower flange (71b1) extending upward (U) from one end in the left-right direction (L-R) and a second lower flange (71b2) extending upward (U) from the other end, the slider (7) forms a front opening (81) at the front (F) end, a rear opening (82) at the rear (B) end, and a guide passage (83) from the front opening (81) to the rear opening (82). The front opening (81) is demarcated by the upper wing plate (71a), the lower wing plate (71b), and the guide post (71c). The rear opening (82) is demarcated by the upper wing plate (71a) and the lower wing plate (71b). The guide passage (83) is demarcated by the upper wing plate (71a), the lower wing plate (71b), the guide post (71c), the first upper flange (71a1), the second upper flange (71a2), the first lower flange (71b1), and the second lower flange (71b2), the width dimension of the first stop (41) in the left-right direction (L-R) is larger than the width dimension of at least one part of the guide passage (83) in the left-right direction (L-R).

6. A stop (4), characterized in that the stop (4) is used for the zipper (1) according to any one of claims 1 to 5.

Images