CN220442079U - Zipper and upper stop assembly thereof - Google Patents

Abstract

The utility model discloses a zipper and an upper stop assembly thereof, wherein the upper stop assembly comprises a left upper stop and a right upper stop which are oppositely arranged, the upper side surface and the lower side surface of the left upper stop and the right upper stop are both provided with convex parts, the top ends of the convex parts are provided with convex edges, and the convex edges are respectively in line contact with an upper bottom plate and a lower bottom plate of a pull head, so that the contact area between the upper stop assembly and the pull head is reduced, the friction force is reduced, the pull head can be pulled without using larger force, and the user experience is better.

Description

Zipper and upper stop assembly thereof

Technical Field

The utility model relates to the technical field of zippers, in particular to a zipper and an upper stop assembly thereof.

Background

The upper stop assembly is an important component of the zipper and typically includes a left upper stop and a right upper stop secured to the respective fastener strips for preventing the slider from sliding out of the upper end of the fastener strips.

Limited by the prior art, the upper side, the lower side, the left side and the right side of the existing upper left stopper and the existing upper right stopper are all plane surfaces. When the pull head is pulled up to the limit position, the upper left end stop and the upper right end stop slide into the inner cavity of the pull head, the upper side surface and the lower side surface of the upper left end stop are respectively propped against the upper bottom plate and the lower bottom plate of the pull head, the upper side surface and the lower side surface of the upper right end stop are respectively propped against the upper bottom plate and the lower bottom plate of the pull head, so that surface contact is formed between the upper left end stop and the upper right end stop and the pull head, the friction force between the upper end stop assembly and the pull head is overlarge due to larger contact area, and when the pull head is pulled down, the upper end stop assembly and the pull head can be separated by using larger external force, so that the user experience is influenced.

Disclosure of Invention

The utility model aims to provide a zipper and an upper stop assembly thereof, which solve the technical problem that the pull head and the upper stop assembly are not easy to separate to influence the experience of a user.

In order to achieve the above purpose, the utility model provides an upper stop assembly of a zipper, which comprises a left upper stop and a right upper stop which are oppositely arranged, wherein the upper side surface and the lower side surface of the left upper stop and the right upper stop are respectively provided with a convex part, the top end of the convex part is provided with a convex rib, and the convex rib is respectively in line contact with an upper bottom plate and a lower bottom plate of a pull head.

Preferably, the upper side surface and the lower side surface of the upper left stop and the upper right stop both comprise two transition parts symmetrically arranged at two sides of the protruding part; the preset height is kept between the convex edge and the transition part.

Preferably, the transition portion is in smooth engagement with the boss.

Preferably, the predetermined height ranges between 0.5 and 1.5 mm.

Preferably, a preset included angle is formed between the convex edge and the transition part, and the range of the preset included angle is 5-25 degrees.

Preferably, the upper left and upper right stops are of equal length, the upper right stop being higher than the upper left stop.

Preferably, the opposite sides of the upper left and upper right stops are provided with feed openings.

Preferably, both the upper left and upper right stops are integrally injection molded on opposite sides of the two links.

Preferably, the left side surface and the right side surface of the left upper stop and the right upper stop are respectively provided with a convex part, and the convex edges of the convex parts are respectively in line contact with the side surface of the base core of the pull head and the side surface of the cloth seam.

The zipper provided by the utility model comprises any one of the upper stop assemblies.

Compared with the background art, the structure of the left upper stopper and the right upper stopper of the upper stopper assembly is optimized, so that the upper side surface and the lower side surface of the left upper stopper and the right upper stopper are changed into curved surfaces from original planes, a convex part is formed, the top end of the convex part is provided with a convex rib, and the convex rib is respectively in line contact with the upper bottom plate and the lower bottom plate of the pull head, so that the contact area between the upper stopper assembly and the pull head is reduced, the friction force is reduced, the pull head can be pulled without using larger force, and the user experience is better.

The zipper provided by the utility model comprises the upper stop assembly and has the same beneficial effects.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only embodiments of the present utility model, and that other drawings can be obtained according to the provided drawings without inventive effort for a person skilled in the art.

FIG. 1 is a state diagram of a top stop assembly of a slide fastener according to an embodiment of the present utility model entering a slider;

FIG. 2 is a schematic cross-sectional view of FIG. 1;

FIG. 3 is a top left-hand end view of FIG. 1;

FIG. 4 is a front view of FIG. 3;

FIG. 5 is a front view of the upper right stop of FIG. 1;

fig. 6 is a front view of fig. 5.

The reference numerals are as follows:

the upper left end stop 1, the upper right end stop 2, the protruding part 3, the convex rib 31, the pull head 4, the upper bottom plate 41, the lower bottom plate 42, the base core 43, the transition part 5, the feed inlet 6 and the cloth seam 7.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In order that those skilled in the art will better understand the present utility model, the following description will be given in detail with reference to the accompanying drawings and specific embodiments.

First, the directions of the directions such as up, down, left, right and the like in the text are all in accordance with the current view of fig. 1.

The embodiment of the utility model discloses an upper stop assembly of a zipper, referring to fig. 1 to 4, which comprises a left upper stop 1 and a right upper stop 2 which are oppositely arranged, wherein the upper side surface and the lower side surface of the left upper stop 1 and the right upper stop 2 are both curved surfaces and are provided with a convex part 3, the top end of the convex part 3 is provided with a convex rib 31, the convex rib 31 arranged on the upper side surface of the left upper stop 1 and the convex rib 31 arranged on the upper side surface of the right upper stop 2 are propped against an upper bottom plate 41 of a pull head 4 and form line contact, and the convex rib 31 arranged on the lower side surface of the left upper stop 1 and the convex rib 31 arranged on the lower side surface of the right upper stop 2 are propped against a lower bottom plate 42 and form line contact.

According to the utility model, by optimizing the structures of the upper left stopper 1 and the upper right stopper 2, the upper side surface and the lower side surface of the upper left stopper 1 and the upper right stopper 2 are changed from the original plane into the curved surface, so that the contact between the upper stopper assembly and the pull head 4 is changed from the original plane contact into the line contact, the contact area between the upper stopper assembly and the pull head 4 is reduced, the friction force is reduced, the pull head 4 can be pulled without using larger force, and the user experience is better.

The upper side and the lower side of the upper left stopper 1 and the upper right stopper 2 respectively comprise two transition parts 5, the two transition parts 5 are symmetrically arranged on two sides of the protruding part 3, the transition parts 5 are smoothly connected with the protruding part 3, and convenience in demolding during injection molding of the upper left stopper 1 and the upper right stopper 2 is ensured. The preset height H is kept between the rib 31 and the transition part 5, the range of the preset height H is between 0.5 and 1.5mm, the distance between the rib 31 arranged on the upper side surface of the upper left stopper 1 and the rib 31 arranged on the lower side surface of the upper left stopper 1 is ensured to be smaller than the height between the upper bottom plate 41 and the lower bottom plate 42 of the pull head 4, and the upper left stopper 1 and the upper right stopper 2 can smoothly enter the pull head 4. Of course, the size of the preset height H may be adaptively adjusted according to the specification of the slider 4, which is not particularly limited herein. The rib 31 and the transition portion 5 form a preset included angle a, the range of the preset included angle a is 5-25 degrees, and the demolding is facilitated by the arrangement.

The lengths of the upper left stopper 1 and the upper right stopper 2 are equal, the upper right stopper 2 is higher than the upper left stopper 1, when the upper left stopper assembly is pulled, the pull head 4 slides from the upper left stopper 1 to the upper right stopper 2, so that the upper left stopper 1 and the upper right stopper 2 respectively enter the inner cavity of the pull head 4, and the pulling difficulty of the pull head 4 is reduced; when the upper stop assembly is pulled, the base core 43 of the pull head 4 slides from the upper right stop 2 to the upper left stop 1, and is not required to be contacted with the upper left stop 1 and the upper right stop 2 at the same time, so that the friction force between the base core 43 and the upper stop assembly is effectively reduced, the external force for pulling the pull head 4 is further reduced, and the user experience is further improved.

The opposite sides of the upper left stopper 1 and the upper right stopper 2 are provided with a feed inlet 6, and the cross section of the feed inlet 6 is isosceles trapezoid, but is not limited to the isosceles trapezoid. The upper left end stop 1 and the upper right end stop 2 are integrally formed on opposite sides of the two chain belts through injection molding, so that the upper left end stop 1 and the upper right end stop 2 are reliably fixed on the chain belts.

The left side face and the right side face of the left upper stopper 1 and the right upper stopper 2 are respectively provided with the protruding part 3, the top of the protruding part 3 is also provided with the protruding edge 31, the protruding edge 31 arranged on the left side face of the left upper stopper 1 and the protruding edge 31 arranged on the right side face of the right upper stopper 2 are respectively propped against the side faces of the two cloth seams 7 to form line contact, the protruding edge 31 arranged on the right side face of the left upper stopper 1 and the protruding edge 31 arranged on the left side face of the right upper stopper 2 are respectively propped against the two side faces of the base core 43 of the pull head 4 to form line contact, line contact is formed among the upper stopper component, the base core 43 of the pull head 4 and the side faces of the cloth seams 7, the contact area and friction force are reduced, the pull head 4 can be used by a user with smaller force, and the user experience feeling is better.

The embodiment of the utility model also discloses a zipper, which comprises the upper stop assembly and has the same beneficial effects.

It should be noted that in this specification relational terms such as first and second are used solely to distinguish one entity from another entity without necessarily requiring or implying any actual such relationship or order between such entities.

The principles and embodiments of the present utility model have been described herein with reference to specific examples, the description of which is intended only to facilitate an understanding of the method of the present utility model and its core ideas. It should be noted that it will be apparent to those skilled in the art that various modifications and adaptations of the utility model can be made without departing from the principles of the utility model and these modifications and adaptations are intended to be within the scope of the utility model as defined in the following claims.

Claims (10)

1. The utility model provides a top end subassembly of zip fastener, its characterized in that, including relative upper left end (1) and upper right end (2) that set up, upper left end (1) with upper right end (2) both upper side and downside all are formed with bellying (3), the top of bellying (3) has bead (31), form the line contact between bead (31) and upper plate (41) and lower plate (42) of pull head (4) respectively.

2. The upper stop assembly of a slide fastener according to claim 1, wherein the upper side and the lower side of both the upper left stop (1) and the upper right stop (2) comprise two transition portions (5) symmetrically provided on both sides of the boss (3); a predetermined height is maintained between the ribs (31) and the transition (5).

3. The upper stop assembly of a slide fastener according to claim 2, characterized in that the transition (5) is in smooth engagement with the boss (3).

4. The top stop assembly of claim 2, wherein the predetermined height ranges from 0.5 to 1.5 mm.

5. The top stop assembly of a slide fastener according to claim 2, characterized in that a predetermined angle is formed between the rib (31) and the transition (5), the predetermined angle ranging from 5 ° to 25 °.

6. The top stop assembly of a slide fastener according to any one of claims 1 to 5, wherein the top left stop (1) and the top right stop (2) are of equal length, the top right stop (2) being disposed higher than the top left stop (1).

7. The top stop assembly of a slide fastener according to claim 6, wherein the opposite sides of both the top left stop (1) and the top right stop (2) are provided with a feed opening (6).

8. The top stop assembly of a slide fastener according to any one of claims 1 to 5, wherein both the top left stop (1) and the top right stop (2) are integrally injection molded on opposite sides of two stringers.

9. The top stop assembly of a slide fastener according to any one of claims 1 to 5, wherein the left side surface and the right side surface of both the left top stop (1) and the right top stop (2) are formed with the boss (3), and the rib (31) of the boss (3) is in line contact with the side surface of the base core (43) and the side surface of the slit (7) of the slider (4), respectively.

10. A slide fastener comprising the top stop assembly of any one of claims 1 to 9.