WO2018040292A1

WO2018040292A1 - Round zipper tooth

Info

Publication number: WO2018040292A1
Application number: PCT/CN2016/105787
Authority: WO
Inventors: 熊梓仁; 邱国亮; 丘巍; 张文奇; 吕宗坚; 曾健安; 吴富康
Original assignee: 理想（广东）拉链实业有限公司
Priority date: 2016-08-31
Filing date: 2016-11-14
Publication date: 2018-03-08
Also published as: CN106165946A

Abstract

A round zipper tooth comprising a zipper tooth body (1). The zipper tooth body (1) is a semicircular columnar body. One extremity of two meshing surfaces (11 and 12) of the zipper tooth body (1) is recessed towards the zipper tooth body (1) to form a meshing part (13) and meshing recessed parts (11b and 12b). Positioning parts (11a and 12a) are provided correspondingly on the meshing recessed parts (11b and 12b). A positioning groove (13a) is provided on the meshing part (13). The structural design of the round zipper tooth is unique, when zipper teeth are meshed with each other, the zipper teeth meshed with each other are round in shape; compared with the prior art, the round zipper teeth are locked by double meshing when meshed with each other, the meshing part (13) of the zipper tooth is meshed with the meshing recessed parts (11b and 12b) of another zipper tooth, the positioning parts (11a and 12a) of the zipper tooth is engagingly locked with the positioning groove (13a) of the other zipper tooth, the zipper teeth are locked by meshing in two dimensional directions, the interacting zipper teeth can be meshed at an increased firmness, even when torn by a great external force in the left and right directions, the zipper teeth meshed with each other are not prone to disengagement.

Description

Round zipper

Technical field

The present invention relates to the field of zipper technology, and in particular to a circular fastener element.

Background technique

The zipper is a connecting piece that relies on continuously arranged zipper teeth to make the articles merge or separate, and is now widely used for clothing, bags, tents, and the like. The zipper is composed of a zipper, a slider, a top and bottom stop (front and back code) or a locking member, wherein the zipper is a key part, which directly determines the side pull strength of the zipper. The general zipper has two chain belts, each of which has a row of fastener elements on each side, and the two rows of zipper teeth are arranged in a staggered manner. The sliders of the zipper teeth on both sides are pulled by the zipper, and the zipper teeth on both sides can be made. Engage or disengage.

Most of the existing zipper structures are "P-type" zippers, and the "P-type" zipper is provided with a beveled tooth at the front edge of the zipper, and a corresponding socket is provided on the other side corresponding thereto, "P-type" The zipper teeth on both sides of the zipper are pulled by the slider to guide the lead-in of the beveled teeth to complete the mutual engagement or disengagement of the zipper teeth.

In order to improve the meshing force between the tooth head and the corresponding socket, the size of the tooth head is increased as much as possible, so that the size of the base of the tooth head is substantially the same as the thickness of the zipper. However, this design makes the fastener element The engagement with the zipper teeth forms only one meshing point. When the zipper is engaged, only one meshing line is formed. When the zipper is torn by a large external force from the left and right direction, especially when it is hit by a sharp hard object, it has multiple faces. The meshing point of the oblique head can be easily disengaged in the direction of the oblique opening, and finally the zipper is opened, which reduces the reliability of the use of the zipper.

Summary of the invention

SUMMARY OF THE INVENTION An object of the present invention is to overcome the above-mentioned deficiencies of the prior art and to provide a circular fastener element which, when engaged with each other, has a strong meshing force and is not easily disengaged by the action of an external force.

In order to achieve the above object, the technical solution adopted by the present invention is as follows: a circular fastener element comprising a fastener element body, wherein the fastener element body comprises a first engaging surface and a second engaging surface, the first engaging surface and The second engaging surface has a semicircular shape, and the arc angle of the arc segment on the first engaging surface and the arc segment on the second engaging surface is greater than 180°;

One end of the first engaging surface and one end of the second engaging surface are recessed into the zipper body to form a first engaging recess, a second engaging recess and an engaging portion;

The first engaging recess is provided with at least one convex first positioning portion at an end away from the engaging portion, and the second engaging concave portion is provided with at least one raised second positioning portion at an end away from the engaging portion, and the end surface of the engaging portion is provided Having at least one positioning groove corresponding to the first positioning portion or the second positioning portion;

The first positioning portion is opposite to the second positioning portion, and the number of the first positioning portion, the second positioning portion, and the positioning groove is the same; the first positioning portion and the second positioning portion are triangular columnar bodies, and the positioning groove is half Circular groove;

The first engaging recess and the second engaging recess are asymmetrically arranged, and the engaging portion is inclined to the first engaging surface or the second engaging surface;

When the round fastener elements are engaged, the intermeshing circular fastener elements are rounded.

Further, each of the first positioning portion, the second positioning portion, and the positioning groove is provided.

Further, the first positioning portion is disposed at a middle portion of the first engaging recess portion away from the one end of the engaging portion, and the second positioning portion is disposed at a middle portion of the second engaging recess portion away from the end of the engaging portion, and the positioning groove is disposed at a middle portion of the end surface of the engaging portion.

Further, the first engaging recess and the second engaging recess are arcuate recesses, and the end faces of the engaging portions are arcuate end faces.

Further, the round fastener element is integrally formed.

The beneficial effects of the invention:

The invention relates to a circular fastener element, comprising a zipper tooth body, wherein the zipper tooth body has a semicircular columnar body, and one end of the two engaging surfaces of the zipper tooth body is recessed into the zipper tooth body to form an engaging portion and an engaging concave portion, and the engaging concave portion a positioning portion is arranged on the upper portion, and a positioning groove is arranged on the engaging portion;

The circular zipper has a unique structural design. When the zipper teeth are engaged with each other, the intermeshing zipper teeth are round. Compared with the prior art, the circular zipper teeth of the present invention have a double meshing lock when meshing with each other, and the zipper is zippered. The engaging portion of the tooth engages with the engaging recess of the other fastener element, and the positioning portion of the fastener element is engaged with the positioning groove of the other fastener element, and the meshing element is engaged and locked in two dimensional directions to make the interaction The zipper teeth are more rigidly engaged, and even if the tear is pulled from a large external force in the left-right direction, the meshing fastener elements are not easily detached.

DRAWINGS

Figure 1 is a perspective view showing the structure of a circular fastener element of the present invention;

2 is a schematic top plan view of a circular fastener element of the present invention;

Figure 3 is a side view showing the structure of the circular fastener element of the present invention;

Figure 4 is a perspective view showing the three-dimensional structure of the circular fastener elements of the present invention when they are engaged with each other;

Figure 5 is a top plan view showing the circular fastener elements of the present invention when they are engaged with each other;

Figure 6 is a schematic view of the circular fastener element of the present invention which is engaged with each other under the action of a slider.

detailed description

The specific embodiments of the present invention are further described below in conjunction with the accompanying drawings.

Referring to FIGS. 1 to 3, a circular fastener element of the present invention includes a fastener element body 1. The fastener element body 1 includes a first engagement surface 11 and a second engagement surface 12, and a first engagement surface 11 and a second engagement surface 12 a semicircular shape, the arc angle of the arc segment on the first mating surface 11 and the arc segment on the second mating surface 12 is greater than 180°;

One end of the first engaging surface 11 and one end of the second engaging surface 12 are recessed into the zipper body to form a first engaging recess 11b, a second engaging recess 12b and an engaging portion 13; the first engaging recess 11b is away from the engaging portion 13. At one end, at least one convex first positioning portion 11a is provided, and the second engagement concave portion 12b is provided with at least one convex second positioning portion 12a at an end away from the engaging portion 13, and at least one corresponding end surface of the engaging portion 13 is provided. The positioning portion 13a of the first positioning portion 11a or the second positioning portion 12a; the first positioning portion 11a is disposed opposite to the second positioning portion 12a, and the number of the first positioning portion 11a, the second positioning portion 12a, and the positioning groove 13a is the same .

In the present embodiment, the first positioning portion 11a, the second positioning portion 12a, and the positioning groove 13a are each provided. The first positioning portion 11a is disposed at a middle portion of the first engagement recess portion 11b away from the end of the engaging portion 13, and the second positioning portion The 12a is disposed at a middle portion of the end of the second engaging recess 12b away from the engaging portion 13, and the positioning groove 13a is provided at a middle portion of the end surface of the engaging portion 13.

The invention relates to a circular fastener element, comprising a zipper tooth body 1, wherein the zipper tooth body 1 is a semicircular columnar body, and one end of the two engaging surfaces of the zipper tooth body 1 is recessed into the zipper tooth body 1 to form an engaging portion 13 and The engaging concave portion is provided with a positioning portion on the engaging concave portion, and the engaging portion 13 is provided with a positioning groove; the circular fastener element has a unique structural design, and when the fastener elements are engaged with each other, the meshing fastener elements are circular, as shown in FIG. 4 to FIG. 6 and FIG. 5 are schematic views of the circular fastener elements of the present invention when they are engaged with each other, and FIG. 6 is a schematic view of the circular fastener elements of the present invention which are engaged with each other under the action of the slider;

Compared with the prior art, the circular fastener element of the present invention has a double meshing lock when meshing with each other, and the meshing portion 13 of the fastener element engages with the engaging concave portion of the other fastener element, and the positioning portion of the fastener element and the other zipper are engaged. The positioning grooves 13a of the teeth are locked and locked with each other, and the meshing teeth are engaged and locked in two dimension directions, so that the interacting fastener elements are more firmly meshed, even if they are torn by a large external force from the left and right directions, and mesh with each other. The zipper teeth are not easy to disengage.

The first positioning portion 11a, the second positioning portion 12a and the positioning groove 13a are each one, which facilitates the manufacture and production of the circular fastener elements, and facilitates the pulling of the fastener elements when the fastener elements are engaged with each other.

Referring to FIG. 1 to FIG. 3 , specifically, in the embodiment, the first positioning portion 11 a and the second positioning portion 12 a are triangular columnar bodies, and the inclined surface of the first positioning portion 11 a is disposed at the first engagement concave portion 11 b away from the meshing. The middle of one end of the portion 13, The inclined surface of the second positioning portion 12a is disposed at a middle portion of the end of the second engaging recess portion 12b away from the engaging portion 13; the positioning groove 13a is a semi-circular groove;

The first engaging recess 11b and the second engaging recess 12b are arcuate recesses, the end faces of the engaging portions 13 are arcuate end faces, and the end faces of the first engaging recess 11b, the second engaging recess 12b, and the engaging portion 13 are curved. It conforms to the design concept of the round shape of the circular zipper teeth, and also facilitates the production and production of the zipper teeth. When the zipper teeth are engaged with each other, the zipper pulls smoothly and the card chain is not prone to occur.

Referring to FIG. 1 to FIG. 3, in the present embodiment, the first engaging recess 11b and the second engaging recess 12b are asymmetrically disposed, and the engaging portion 13 is inclined to the first engaging surface 11 or the second engaging surface 12. In the zipper formed by the meshing fastener elements, the engaging portion 13 is inclined in the direction in which the zipper is pulled, and the smoothness at the time of zipper pull-up can be further improved.

In this embodiment, the circular fastener element is integrally formed.

Variations and modifications of the above-described embodiments may also be made by those skilled in the art in light of the above disclosure. Therefore, the present invention is not limited to the specific embodiments disclosed and described, and the modifications and variations of the invention are intended to fall within the scope of the appended claims. In addition, although specific terms are used in the specification, these terms are merely for convenience of description and do not limit the invention.

Claims

A circular fastener element comprising a fastener element body, wherein the fastener element body comprises a first engagement surface and a second engagement surface, the first engagement surface and the second engagement surface being semi-circular, the first engagement surface The arc angle of the upper arc segment and the arc segment on the second meshing surface is greater than 180°;

One end of the first engaging surface and one end of the second engaging surface are recessed into the zipper body to form a first engaging recess, a second engaging recess and an engaging portion;

The first engaging recess is provided with at least one convex first positioning portion at an end away from the engaging portion, and the second engaging concave portion is provided with at least one raised second positioning portion at an end away from the engaging portion, and the end surface of the engaging portion is provided Having at least one positioning groove corresponding to the first positioning portion or the second positioning portion;

The first positioning portion is opposite to the second positioning portion, and the number of the first positioning portion, the second positioning portion, and the positioning groove is the same; the first positioning portion and the second positioning portion are triangular columnar bodies, and the positioning groove is half Circular groove;

The first engaging recess and the second engaging recess are asymmetrically arranged, and the engaging portion is inclined to the first engaging surface or the second engaging surface;

When the round fastener elements are engaged, the intermeshing circular fastener elements are rounded.
The circular fastener element according to claim 1, wherein each of the first positioning portion, the second positioning portion, and the positioning groove is provided.
The circular fastener element according to claim 2, wherein the first positioning portion is disposed at a middle portion of the first engagement recess portion away from the one end of the engagement portion, and the second positioning portion is disposed at an end of the second engagement recess portion away from the engagement portion. In the middle, the positioning groove is disposed at the middle of the end surface of the engaging portion.
The circular fastener element according to claim 1, wherein the first engaging recess and the second engaging recess are arcuate recesses, and an end surface of the engaging portion is an arcuate end surface.
The circular fastener element according to claim 1, wherein the circular fastener element is integrally formed.