WO2018040896A1 - 一种圆牙拉链 - Google Patents
一种圆牙拉链 Download PDFInfo
- Publication number
- WO2018040896A1 WO2018040896A1 PCT/CN2017/097293 CN2017097293W WO2018040896A1 WO 2018040896 A1 WO2018040896 A1 WO 2018040896A1 CN 2017097293 W CN2017097293 W CN 2017097293W WO 2018040896 A1 WO2018040896 A1 WO 2018040896A1
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- WIPO (PCT)
- Prior art keywords
- engaging
- zipper
- circular
- recess
- positioning
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- A—HUMAN NECESSITIES
- A44—HABERDASHERY; JEWELLERY
- A44B—BUTTONS, PINS, BUCKLES, SLIDE FASTENERS, OR THE LIKE
- A44B19/00—Slide fasteners
- A44B19/24—Details
Definitions
- the invention relates to the technical field of zippers, in particular to a circular tooth zipper of an explosion-proof tooth.
- 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.
- 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.
- 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.
- 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.
- the present invention has been made in view of the above problems, and a main object of the invention of claim 1 is to provide a round zipper which is firmly engaged when being engaged with each other, and is not easily disengaged by an external force, and further By changing the structure of the meshing portion, the element is more tightly engaged with each other under the action of various external forces, especially the "U"-shaped pressing force, and is not easily disengaged.
- a circular fastener zipper according to the present invention includes a fastener element arranged at a fixed interval on a fastener tape, the fastener element comprising a first engagement surface and a second engagement surface, a side of the first engagement surface and the second engagement surface
- the outer contour is semi-circular, and the central angle of the circular arc segment of the outer contour of the first engaging surface and the circular arc segment of the outer contour of the second engaging surface is greater than 180°;
- first engaging surface and one end of the second engaging surface are recessed into the main body of the fastener element 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 on a side away from the engaging portion, and the second engaging concave portion is away from the meshing
- One side of the portion is provided with at least one convex second positioning portion, and the end surface of the engaging portion is provided with 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;
- the circular zipper according to claim 2 is based on the first aspect of the invention, and provides an explosion-proof tooth zipper whose width of the outer contour of the end face of the engaging portion gradually decreases from the central portion to the upper and lower ends.
- the circular zipper according to claim 3 is characterized in that, according to the second aspect of the invention, an explosion-proof dental zipper is provided, wherein the first positioning portion is disposed at a middle portion of a side of the first engagement concave portion away from the meshing portion.
- the second positioning portion is disposed at a middle portion of a side of the second engaging concave portion away from the engaging portion, and the positioning groove is disposed at a middle portion of the end surface of the engaging portion;
- the width of the outer contour of the end surface of the engaging portion gradually decreases from the positioning groove to the upper and lower ends.
- the circular zipper according to claim 4 is characterized in that, according to the second aspect of the invention, an explosion-proof dental zipper is provided, characterized in that both ends of the engaging portion are semicircularly extending in a direction close to the chain belt.
- the side portions of the fastener element, the two sides of the element side of the element are connected to the first engaging surface and the second engaging surface;
- the side portion of the element includes an engaging card surface, and an engaging convex surface at a lower end of the engaging card surface, wherein the middle portion of the engaging card surface is engaged with the chain belt;
- the two sides of the engaging convex surface are respectively connected to the first engaging recess and the second engaging recess;
- One end of the engaging card surface and the engaging convex surface is provided with a shoulder extending in the front-rear direction of the chain belt.
- the circular zipper according to claim 5 is characterized in that, in addition to the technical solution 4, an explosion-proof dental zipper is provided, wherein the width of the engaging convex surface is connected to the first engaging concave portion and the second meshing The distance between the two side edges of the recess that gradually decreases or does not change in a direction away from the engaging card face.
- the circular zipper according to claim 6 is characterized in that, according to the technical solution 4, an explosion-proof tooth zipper is provided, wherein the width of the engaging convex surface is smaller than two shoulders adjacent to the same chain belt. the distance.
- the circular zipper according to claim 7 is characterized in that, according to claim 4, an explosion-proof dental zipper is provided, characterized in that both side edges of the engaging convex surface are bent at a chain to a "U" shape.
- the two sides of the engaging convex surface on the inner side of the "U"-shaped bottom abut against one side edge of the engaging convex surface of the adjacent fastener element on the opposite chain belt; the engaging convex surface of the inner side of the bottom portion and the engaging convex surface of the fastener element Engages the convex surface on different zipper teeth.
- the circular zipper according to claim 8 is characterized in that, according to claim 4, an explosion-proof tooth zipper is provided, wherein: the engaging card surface is bent when the chain belt is bent into a "U" shape, Two shoulders on the engaging card surface on the inner side of the U" type abut against the shoulders of the adjacent fastener elements on the same chain belt; the two shoulders on the engaging card face and the teeth of the adjacent element The shoulders are the shoulders on two different zipper teeth.
- the circular zipper according to claim 9 is characterized in that, according to the fourth aspect of the invention, an explosion-proof dental zipper is provided, characterized in that: the first engaging concave portion is an arc-shaped concave portion, and the concave surface of the concave portion The upper and lower ends of the first positioning portion are gradually deepened.
- the circular zipper according to claim 10 is characterized in that, according to the fourth aspect of the invention, an explosion-proof dental zipper is provided, wherein the second engaging concave portion is an arc-shaped concave portion, and the concave surface of the concave portion The second positioning portion gradually deepens from the upper and lower ends.
- the circular zipper according to claim 11 is characterized in that, according to claim 10, an explosion-proof tooth zipper is provided, characterized in that the end surface of the engaging portion is an arc-shaped end surface.
- the circular zipper according to claim 12 is characterized in that, in addition to the technical solution 4 or 11, an explosion-proof dental zipper is provided, characterized in that the concave depth of the first engaging recess and the second engaging recess is The width of the end face of the engaging portion is increased to increase.
- the zipper according to claim 13 is characterized in that, in addition to the fourth aspect of the invention, the zipper of the explosion-proof tooth is provided, wherein the first engaging recess is adjacent to the concave edge of the meshing portion and the first The concave edge line connecting the two engaging recesses on the side of the engaging portion has a shape in which the width of the middle portion is gradually reduced toward the upper and lower ends.
- the circular zipper according to claim 14 is characterized in that, in addition to the fourth aspect of the invention, an explosion-proof dental zipper is provided, wherein the first engaging concave portion is adjacent to a concave edge of the engaging portion side and the first The concave edge of the two engaging recesses near the engaging portion has a shape in which the width of the middle portion is constant and the upper and lower ends are gradually reduced.
- the circular zipper according to claim 15 is characterized in that, in addition to the first aspect, the zipper is provided with an explosion-proof tooth zipper, wherein the first positioning portion, the second positioning portion, and the positioning groove are each provided.
- the zipper of the circumstance according to claim 16 is characterized in that, in addition to the technical solution 15, an explosion-proof tooth zipper is provided, wherein the first positioning portion is disposed at a middle portion of the first engagement recess portion away from the end of the meshing portion, The second positioning portion is disposed at a middle portion of the end of the second engaging concave portion away from the engaging portion, and the positioning groove is disposed at a middle portion of the end surface of the engaging portion.
- the zipper according to claim 17 is characterized in that, according to the first aspect of the invention, an explosion-proof tooth zipper is provided, wherein the first engaging recess and the second engaging recess are arc-shaped recesses, and the engaging portion The end face is an arcuate end face.
- the circular zipper according to claim 18 is characterized in that, according to the first aspect of the invention, an explosion-proof dental zipper is provided, characterized in that the circular fastener element is integrally formed.
- the circular zipper according to claim 19 is characterized in that, according to the first aspect of the invention, an explosion-proof dental zipper is provided, characterized in that: the main body of the connecting tooth is provided with a reinforcing patch, and the reinforcing patch is connected at one end to Both ends of the engaging portion extend toward the side of the element extending in the direction of the chain belt, and one end of the engaging portion is attached to the surface of the tape to extend away from the fastener element.
- the circular zipper according to claim 20 is characterized in that, according to claim 19, an explosion-proof dental zipper is provided, wherein the reinforcing patch and the fastener element body are integrally formed.
- the shape of the reinforcing patch may be an arc shape, a ladder shape, or other shapes that can be attached to the cloth strip; the reinforcing patch increases the strength of the zipper flat pulling force and prolongs the life of the zipper.
- the round zipper of the present invention has a double meshing lock when meshing with each other, and the engaging recess of the meshing portion of the fastener element and the other fastener element Intermeshing, the positioning portion of the fastener element and the positioning groove of the other fastener element are locked and locked with each other, and the meshing teeth are meshed and locked in two dimensional directions, so that the interacting fastener elements are more firmly meshed, even from The tearing of a large external force in the left-right direction does not easily disengage the meshing fastener elements.
- the middle portion of the engaging portion of one of the fastener elements can closely mesh with the middle portion of the engaging portion of the adjacent fastener element, and a certain gap is formed between the opposite ends of the engaging portion of the adjacent element, when the zipper is made
- the edge ends of the adjacent engaging convex faces of the two fastener elements that are engaged with each other on the inner side of the "U" shaped bottom are abutted together, and the two adjacent fastener elements are attached to the same chain.
- the adjacent shoulders are also abutted together, and the structure of the meshing teeth between the fastener elements is very tight, eliminating the gap and forming a stable meshing structure;
- the positioning groove is arranged in the middle of the element to achieve a high-strength and uniform meshing force while simplifying the production process.
- the shape of the first engaging recess corresponds to the engaging portion to achieve the effect of reinforcing the engaging structure.
- the shape of the second engaging recess corresponds to the engaging portion to achieve the effect of reinforcing the engaging structure.
- the width of the engaging convex surface is smaller than the distance between the adjacent upper shoulders of the two element teeth.
- the curved end face of the engaging portion is designed to facilitate the meshing of the elements under the action of the slider while maintaining a high-strength meshing force and making the slider move more smoothly.
- Figure 1 is a perspective view showing an element of an explosion-proof tooth zipper
- Figure 2 is a perspective view showing an element of an explosion-proof tooth zipper
- Figure 3 is a front elevational view showing the element of an explosion-proof tooth zipper
- Figure 4 is a left side view showing an element of an explosion-proof tooth zipper
- Figure 5 is a right side elevational view showing the chain of an explosion-proof tooth zipper
- Figure 6 is a bottom view showing the element of an explosion-proof tooth zipper
- Figure 7 is a plan view showing a side portion of an element in the second embodiment
- Figure 8 is a graph showing the relationship between the end face width of the engaging portion and the concave depth of the first engaging concave portion and the second engaging concave portion in the embodiment 2, the X-axis indicating the width of the end face of the engaging portion, and the Y-axis indicating the first engaging concave portion and the second portion.
- Figure 9 is a cross-sectional view showing A-A in the second embodiment
- Figure 10 is a cross-sectional view showing A-A in the third embodiment
- Figure 11 is a bottom view showing the state of the bursting state in which the chain applying force F is bent into a "U" shape in the prior art
- Figure 12 is a front elevational view showing a state in which the belt applying force F is bent into a "U" shape in the prior art
- Figure 13 is a view showing the two shoulders of the engaging card surface and the adjacent shoulders of the adjacent fastener elements on the opposite side of the chain belt when the chain applying force F is bent into the "U" shape in the embodiment. State diagram;
- Figure 14 is a bottom plan view showing a dental fastener element according to a fourth embodiment
- 15 to 17 are perspective views showing the fastener element of the explosion-proof toothed zipper with the reinforced patch in the fifth embodiment.
- the present invention provides a circular zipper, comprising a zipper body 1, the zipper body 1 comprising a first engaging surface 2 and a second engaging surface 3, the first engaging surface 2 and the second engaging surface 3 being semicircular Shape, the arc angle of the arc segment on the first mating surface 2 and the arc segment on the second mating surface 3 is greater than 180°;
- first engaging surface 2 and one end of the first engaging surface 3 are recessed into the main body of the fastener element to form a first engaging recess 4, a second engaging recess 5 and an engaging portion 6; the first engaging recess 4 is away from the engaging portion 6.
- At least one protruding first positioning portion 7 is provided at one end, and the second engaging concave portion 5 is provided with at least one convex second positioning portion 8 at an end away from the engaging portion 6, and at least one corresponding end surface of the engaging portion 6 is provided.
- the positioning portion 9 of the first positioning portion 7 or the second positioning portion 8; the first positioning portion 7 is disposed opposite to the second positioning portion 8, and the number of the first positioning portion 7, the second positioning portion 8, and the positioning groove 9 is the same .
- the upper and lower ends of the engaging portion 6 are the two ends in the longitudinal direction of the engaging portion 6, and the connecting lines at both ends are perpendicular to the longitudinal direction of the chain belt, and the upper and lower ends of the first engaging concave portion 4 are in the direction of the meshing portion. 6
- the upper and lower ends are aligned, and the upper and lower ends of the second engaging recess 5 are aligned with the upper and lower ends of the engaging portion 6.
- the first positioning portion 7, the second positioning portion 8, and the positioning groove 9 are each provided.
- the first positioning portion 7 is disposed at a middle portion of the first engagement recess portion 4 away from the end of the engaging portion 6, and the second positioning portion 8 is disposed at a middle portion of the end of the second engaging recess 5 away from the engaging portion 6, and the positioning groove 9 is provided at a middle portion of the end surface of the engaging portion 6.
- the invention provides a round zipper, comprising a zipper body 1 , wherein the zipper body 1 is a semicircular columnar body, and one end of the two engaging faces of the zipper body 1 is recessed into the zipper body 1 to form an engaging portion 6 And the engaging concave portion, the engaging concave portion is provided with a positioning portion, and the engaging portion 6 is provided with a positioning groove; the structure of the round tooth zipper is unique, and when the fastener elements are engaged with each other, the meshing fastener elements are circular, which is related to the prior art.
- the dental fastener element of the present invention has a double meshing lock when intermeshing, and the engaging portion 6 of the fastener element and the engaging recess of the other fastener element engage with each other, and the positioning portion of the fastener element and the positioning groove 9 of the other fastener element Interlocking with each other, the meshing and locking of the fastener elements in two dimensional directions, so that the interacting fastener elements are more firmly meshed, even if they are from the left and right sides The tearing of the upper external force is not easy to disengage the intermeshing fastener elements.
- the first positioning portion 7, the second positioning portion 8, and the positioning groove 9 are each one, which facilitates the production and production of the zipper of the round teeth, and facilitates the pulling of the fastener elements when the fastener elements are engaged with each other.
- the first positioning portion 7 and the second positioning portion 8 are triangular columnar bodies, and the positioning groove 9 is a semi-circular groove; the first positioning portion 7 is disposed on the first engaging concave portion 4 away from the meshing portion 6 In the middle of one end, the second positioning portion 8 is disposed at a middle portion of the end of the second engaging recess 5 away from the engaging portion 6, and the positioning groove 9 is provided at a middle portion of the end surface of the engaging portion 6.
- the two ends of the engaging portion 6 extend in a direction close to the chain belt, and a semi-circular element side portion 10 is disposed.
- the two sides of the element side portion 10 are connected to the first engaging surface 2 and the second portion. Engagement surface 3.
- the element side portion 10 includes an engaging card surface 11 and an engaging convex surface 12 at both ends of the engaging card surface 11, and the middle portion of the engaging card surface 11 is engaged with the chain belt;
- the semicircular element side portion 10 is gradually contracted in the direction from the both ends of the engaging portion 6 toward the both ends of the engaging portion 6, forming a semicircular element side portion 10.
- Both side edges of the engaging convex surface 12 are connected to the first engaging recess 4 and the second engaging recess 5, respectively.
- one end of the engaging card surface 11 and the engaging convex surface 12 is provided with two shoulders 13 extending in a direction away from the engaging convex surface 12.
- the width of the engaging convex surface 12 is smaller than the distance between the adjacent shoulders 13 of the two fastener elements adjacent to the same chain belt.
- the fastener element 1 of the round zipper is integrally formed.
- the first engaging recess 4 and the second engaging recess 5 are arcuate recesses, the end faces of the engaging portions 6 are arcuate end faces, and the end faces of the first engaging recess 4, the second engaging recess 5, and the engaging portion 6 are curved. It conforms to the design concept of round zipper "circle”, and also facilitates the production and production of zipper teeth. When the zipper teeth mesh with each other, the zipper pulls smoothly and the card chain is not easy to occur.
- the difference between this embodiment and the first embodiment is that the width of the outer contour of the end surface of the engaging portion 6 gradually decreases from the middle of the end surface to the upper and lower ends of the engaging portion.
- the first positioning portion 7 is disposed at a middle portion of the first engagement recess portion 4 away from the end of the engagement portion 6, and the second positioning portion 8 is disposed at a middle portion of the second engagement recess portion 5 away from the end of the engagement portion 6, the positioning groove 9 It is provided in the middle of the end surface of the meshing portion 6.
- the width of the outer contour of the end face of the engaging portion 6 gradually decreases from the positioning groove 9 to the upper and lower ends.
- the first engaging recess 4 is an arc-shaped recess, and the concave surface of the recess gradually deepens from the first positioning portion 7 to the upper and lower ends.
- the second engaging recess 5 is an arc-shaped recess, and the concave surface of the recess gradually deepens from the second positioning portion 8 to the upper and lower ends.
- the width of the engaging convex surface 12 is a distance between two side edges connecting the first engaging recess 4 and the second engaging recess 5, and the distance gradually decreases in a direction away from the engaging card surface 11 or constant.
- the concave depths of the first engaging recess 4 and the second engaging recess 5 increase as the width of the end face of the engaging portion 6 decreases.
- the end surface of the engaging portion 6 away from the side of the chain belt is an arcuate end surface. And the middle of the end face gradually contracts toward the first engaging recess 4 and the second engaging recess 5. Form an arc.
- the concave edge of the first engaging recess 4 on the side close to the engaging portion 6 and the concave edge of the second engaging recess 5 on the side close to the engaging portion 6 are gradually narrowed toward the middle and the lower ends. shape.
- the difference between this embodiment and the first embodiment is that, as shown in FIG. 10, the concave edge of the first engaging recess 4 on the side close to the engaging portion 6 and the concave edge of the second engaging recess 5 on the side close to the engaging portion 6 are preferable.
- the connection is a shape in which the width of the middle portion is constant, and the upper and lower ends are gradually reduced, and the rest is the same as in the first embodiment.
- the intermeshing fastener elements 1 are cylindrical, and the positioning groove portions of the engaging portions between the fastener elements 1 and their adjacent fastener elements are closely meshed together, and the engaging portion 6 is engaged. There is a gap between the two end portions and the adjacent end portions of the adjacent fastener element.
- the fastener element 1 is bent into a U-shape, the meshing portion between the two fastener elements 1 that are in mesh with each other The gap between the two ends is closed by force, and the gap between the adjacent shoulders 13 on the engaging surface of the two adjacent fastener elements of the same chain is also closed by force.
- the meshing force between the fastener elements in the state of being bent is very stable, and the situation in which the fastener element 1 "bursting" under the force of pressing is eliminated.
- the difference between the present embodiment and the first embodiment is that the first engaging recess 4 and the second engaging recess 5 are asymmetrically disposed, and the engaging portion 6 is inclined to the first engaging surface 2 or the second engaging surface 3, for In the zipper formed by the meshing fastener elements, the engaging portion 6 is inclined in the direction in which the zipper is pulled, and the smoothness at the time of pulling the zipper can be improved.
- the rest is in accordance with Embodiment 1.
- the difference between the embodiment and the embodiment 1 is that the main body of the connecting tooth is provided with a reinforcing patch, and one end of the reinforcing patch is connected to the side of the element extending from the two ends of the engaging portion toward the chain belt.
- One end of the tape is attached to the surface of the tape and extends away from the fastener element.
- the reinforcing patch and the zipper body can be separately injection molded, and the reinforcing patch and the zipper tooth theme of the present application are integrally formed from the manufacturing process and the reinforcing patch for the zipper.
- the shape of the reinforcing patch in the present application may be an arc shape, a ladder shape, or other shapes that can be attached to the tape; the reinforcing patch adds a zipper
- the strength of the flat pull strength extends the life of the zipper.
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Abstract
一种圆牙拉链，包括拉链牙本体（1），拉链牙本体（1）呈半圆形的柱状体，拉链牙本体（1）的两个啮合面的一端向拉链牙本体（1）内凹陷形成啮合部和啮合凹部，啮合凹部上设有定位部，啮合部上设有定位槽（9）。圆牙拉链结构设计独特，当拉链牙相互啮合时，相互啮合的拉链牙呈圆形，并且相互啮合时为双重的啮合锁定，其在两个维度方向上对链牙进行啮合锁定，使相互作用的链牙啮合地更为紧固，即使在来自左右方向上较大外力的撕扯，相互啮合的拉链牙也不容易脱开；以及一种防爆牙圆牙拉链通过改变啮合部的结构，使拉链牙在受到各种外力的作用下，尤其是"U"字形挤压力的作用下，拉链牙之间互相啮合的更加紧固，不易脱开。
Description
本发明涉及拉链技术领域，特别涉及一种防爆牙的圆牙拉链。
拉链如今已经在世界各地的衣服上广泛应用，是人们生活中不可或缺的一部分，也是上世纪重要、最实用的发明之一，而对拉链的改进也是社会发展的趋势。拉链是依靠连续排列的拉链牙，使物品并合或分离的连接件，现大量用于服装、包袋、帐篷等。拉链由拉链牙、拉头、上下止(前码和后码)或锁紧件等组成，其中拉链牙是关键部分，它直接决定了拉链的侧拉强度。一般拉链有两片链带，每片链带上各自有一列拉链牙，两列拉链牙相互交错排列，拉头夹持两侧的拉链牙，借助拉襻滑行，即可使两侧的拉链牙相互啮合或脱开。
现有的拉链结构大多为“P型”拉链，“P型”拉链在拉链牙的前端边缘处设置了斜角的牙头，并在与其对应的另一面设置一个对应的牙槽，“P型”拉链两侧的拉链牙在拉头的拉动下，带动斜角牙头的导出导入以完成拉链牙的相互啮合或脱开。
而为了提高牙头与对应的牙槽之间的啮合力，会尽可能的增大牙头的尺寸，使牙头的基座尺寸与拉链的厚度基本保持一致，然而，此种设计会使得拉链牙与拉链牙之间的啮合仅形成一个啮合点，拉链啮合后只形成一条啮合线，当拉链受到来自左右方向上较大外力的撕扯时，尤其是被尖锐的硬物迎面撞击时，带有多面斜口的牙头的啮合点就会容易顺着斜口的方向连续脱开，最终使拉链爆开，降低了拉链的使用可靠性。
发明内容
本发明是鉴于上述问题而做出的，技术方案1所述发明的主要目的在于提供一种圆牙拉链，圆牙拉链在相互啮合时，啮合牢固，不容易因外力作用而脱开，进一步地，通过改变啮合部的结构，使链牙在受到各种外力的作用下，尤其是“U”字形挤压力的作用下，链牙之间互相啮合的更加紧固，不易脱开。
本发明所述的一种圆牙拉链，包括以固定间隔排列在链带上的拉链牙，所述拉链牙包括第一啮合面和第二啮合面，第一啮合面和第二啮合面的侧面外轮廓呈半圆形，第一啮合面外轮廓的圆弧段和第二啮合面外轮廓的圆弧段的圆心角大于180°；
第一啮合面的一端与第二啮合面的一端向拉链牙主体内凹陷形成第一啮合凹部、第二啮合凹部以及啮合部；
第一啮合凹部在远离啮合部的一侧设有至少一个凸起的第一定位部，第二啮合凹部在远离啮合
部的一侧设有至少一个凸起的第二定位部，啮合部的端面上设有至少一个对应于第一定位部或第二定位部的定位槽；
第一定位部与第二定位部相对设置，第一定位部、第二定位部以及定位槽的个数相同；第一定位部与第二定位部为呈三角形的柱状体，定位槽为呈半圆形的凹槽；
第一啮合凹部与第二啮合凹部为非对称设置，啮合部向第一啮合面或第二啮合面倾斜设置；
当圆牙拉链牙啮合时，相互啮合的圆牙拉链牙呈圆形。
技术方案2所述的圆牙拉链，是在技术方案1的基础上，提供一种防爆牙圆牙拉链，其啮合部的端面外轮廓的宽度自中部向上下两端逐渐变小。
技术方案3所述的圆牙拉链，是在技术方案2的基础上，提供一种防爆牙圆牙拉链，其特征在于：第一定位部设于第一啮合凹部远离啮合部的一侧的中部，第二定位部设于第二啮合凹部远离啮合部的一侧的中部，定位槽设于啮合部端面的中部；
所述啮合部端面外轮廓的宽度自定位槽向上下两端逐渐变小。
技术方案4所述的圆牙拉链，是在技术方案2的基础上，提供一种防爆牙圆牙拉链，其特征在于：所述啮合部两端向接近链带的方向延伸设有半圆形的链牙侧部，所述链牙侧部的两侧连接所述第一啮合面和第二啮合面；
所述链牙侧部包括啮合卡面，以及位于啮合卡面上下两端的啮合凸面，所述啮合卡面中部与链带卡合连接；
所述啮合凸面的两侧边缘分别连接所述第一啮合凹部和第二啮合凹部；
所述啮合卡面与啮合凸面连接的一端设有牙肩，所述牙肩沿链带的前后方向延伸。
技术方案5所述的圆牙拉链，是在技术方案4的基础上，提供一种防爆牙圆牙拉链，其特征在于：所述啮合凸面的宽度为连接所述第一啮合凹部与第二啮合凹部的两侧边缘之间的距离，该距离沿远离啮合卡面的方向逐渐变小或不变。
技术方案6所述的圆牙拉链，是在技术方案4的基础上，提供一种防爆牙圆牙拉链，其特征在于：所述啮合凸面的宽度小于同一条链带相邻的两个牙肩的距离。
技术方案7所述的圆牙拉链，是在技术方案4的基础上，提供一种防爆牙圆牙拉链，其特征在于：所述啮合凸面的两侧边缘在链带折弯至“U”型时，“U”型底部内侧的啮合凸面的两侧边缘与相对链带上相邻的拉链牙的啮合凸面的一侧边缘抵靠；所述底部内侧的啮合凸面与所述拉链牙的啮合凸面为不同的拉链牙上的啮合凸面。
技术方案8所述的圆牙拉链，是在技术方案4的基础上，提供一种防爆牙圆牙拉链，其特征在于：所述啮合卡面在链带折弯成“U”型时，“U”型底部内侧的啮合卡面上的两个牙肩与相同链带上相邻拉链牙的牙肩抵靠；所述啮合卡面上的两个牙肩与所述相邻链牙的牙肩为两个不同拉链牙上的牙肩。
技术方案9所述的圆牙拉链，是在技术方案4的基础上，提供一种防爆牙圆牙拉链，其特征在于：所述第一啮合凹部为弧形的凹部，并且所述凹部的凹面自第一定位部向上下两端逐渐加深。
技术方案10所述的圆牙拉链，是在技术方案4的基础上，提供一种防爆牙圆牙拉链，其特征在于：所述第二啮合凹部为弧形的凹部，并且所述凹部的凹面自第二定位部向上下两端逐渐加深。
技术方案11所述的圆牙拉链，是在技术方案10的基础上，提供一种防爆牙圆牙拉链，其特征在于：啮合部的端面为弧形的端面。
技术方案12所述的圆牙拉链，是在技术方案4或11的基础上，提供一种防爆牙圆牙拉链，其特征在于：所述第一啮合凹部、第二啮合凹部的凹面深度随着啮合部端面宽度的减小而增加。
技术方案13所述的圆牙拉链，是在技术方案4的基础上，提供一种防爆牙圆牙拉链，其特征在于：所述第一啮合凹部靠近啮合部一侧的凹面边缘与所述第二啮合凹部靠近啮合部一侧的凹面边缘连线为中部宽度向上下两端逐渐缩小的形状。
技术方案14所述的圆牙拉链，是在技术方案4的基础上，提供一种防爆牙圆牙拉链，其特征在于：所述第一啮合凹部靠近啮合部一侧的凹面边缘与所述第二啮合凹部靠近啮合部一侧的凹面边缘连线为中部宽度不变，上下两端逐渐缩小的形状。
技术方案15所述的圆牙拉链，是在技术方案1的基础上，提供一种防爆牙圆牙拉链，其特征在于：第一定位部、第二定位部以及定位槽各有一个。
技术方案16所述的圆牙拉链，是在技术方案15的基础上，提供一种防爆牙圆牙拉链，其特征在于：第一定位部设于第一啮合凹部远离啮合部的一端的中部，第二定位部设于第二啮合凹部远离啮合部的一端的中部，定位槽设于啮合部端面的中部。
技术方案17所述的圆牙拉链，是在技术方案1的基础上，提供一种防爆牙圆牙拉链，其特征在于：第一啮合凹部和第二啮合凹部为弧形的凹部，啮合部的端面为弧形的端面。
技术方案18所述的圆牙拉链，是在技术方案1的基础上，提供一种防爆牙圆牙拉链，其特征在于：圆牙拉链牙为一体成型。
技术方案19所述的圆牙拉链，是在技术方案1的基础上，提供一种防爆牙圆牙拉链，其特征在于：拉连牙主体设有加强贴片，所述加强贴片一端接于所述啮合部两端向接近链带的方向延伸的链牙侧部，一端贴合于布带的表面向远离拉链牙的方向延伸。
技术方案20所述的圆牙拉链，是在技术方案19的基础上，提供一种防爆牙圆牙拉链，其特征在于：所述加强贴片与拉链牙主体为一体成型。
其中加强贴片的形状可为圆弧状，梯状，或其它可贴合布带的形状；加强贴片增加了拉链平拉力度的强度，延长拉链的寿命。
本发明的圆牙拉链在相互啮合时为双重的啮合锁定，拉链牙的啮合部与另一拉链牙的啮合凹部
相互啮合，拉链牙的定位部与另一拉链牙的定位槽相互卡合锁定，其在两个维度方向上对拉链牙进行啮合锁定，使相互作用的拉链牙啮合地更为牢固，即使在来自左右方向上较大外力的撕扯，相互啮合的拉链牙也不容易脱开。
链牙相互啮合时，一个拉链牙的啮合部的中部能够和与其相邻拉链牙的啮合部的中部紧密的啮合，相邻链牙的啮合部两端部之间有一定的缝隙，当使拉链弯折成“U”字状时，在“U”字形底部内侧互相啮合的两个拉链牙的相邻啮合凸面的边缘端抵靠在一起，同一条链带上相邻的两个拉链牙上的相邻牙肩也抵靠在一起，拉链牙之间相互啮合的结构十分紧密，消除了缝隙，构成了稳定的啮合结构；
同时将定位槽设置在链牙中部是为了达到简化生产流程的同时保持高强度而又均匀的啮合力。链牙互相啮合后，前后定位件与定位槽卡合，保证了拉链前后方向上的啮合强度；
第一啮合凹部的形状与啮合部相对应，以达到加强啮合结构的效果。
第二啮合凹部的形状与啮合部相对应，以达到加强啮合结构的效果。
啮合凸面的宽度小于相邻的两个链牙上牙肩的距离，当对拉链施加“U”字形的挤压力时，相邻两个拉链牙上的相邻牙肩之间的缝隙在挤压力的作用下闭合，同时一个拉链牙的啮合凸面边缘和与其相邻的其他链牙上的啮合凸面边缘挤压在一起，这样构成了稳定的啮合结构。
啮合部弧形端面的设计便于链牙在拉头的作用下更容易的啮合在一起，同时保持高强度的啮合力，并使拉头移动更为顺畅。
图1是表示一种防爆牙圆牙拉链的链牙立体图；
图2是表示一种防爆牙圆牙拉链的链牙立体图；
图3是表示一种防爆牙圆牙拉链的链牙主视图；
图4是表示一种防爆牙圆牙拉链的链牙左视图；
图5是表示一种防爆牙圆牙拉链的链牙右视图；
图6是表示一种防爆牙圆牙拉链的链牙仰视图；
图7是表示实施例2中链牙侧部的平面视图；
图8是表示实施例2中啮合部端面宽度与第一啮合凹部和第二啮合凹部的凹面深度的变化关系曲线图，X轴表示啮合部端面的宽度，Y轴表示第一啮合凹部和第二啮合凹部的凹面的深度；
图9是表示实施例2中A-A的剖面图；
图10是表示实施例3中A-A的剖面图；
图11是表示现有技术中将链带施加力F折弯成“U”型，产生的爆牙状态仰视图；
图12是表示现有技术中将链带施加力F折弯成“U”型，产生的爆牙状态主视图；
图13是表示本实施例中将链带施加力F折弯成“U”型时，啮合卡面上的两个牙肩和与其相对链带上相邻拉链牙的相邻牙肩抵靠的状态图；
图14是表示本实施例4提供的一种圆牙拉链牙的仰视图；
图15-图17是表示本实施例5中带加强贴片的防爆牙圆牙拉链的链牙立体图。
附图标记说明
1.拉链牙主体；2.第一啮合面；3.第二啮合面；4.第一啮合凹部；5.第二啮合凹部；6.啮合部；7.第一定位部；8.第二定位部；9定位槽；10.链牙侧部；11.啮合卡面；12.啮合凸面；13.牙肩；14.加强贴片。
下面结合附图对本发明的具体实施方式作进一步说明
参见图1，本发明提供一种圆牙拉链，包括拉链牙主体1，拉链牙主体1包括第一啮合面2和第二啮合面3，第一啮合面2和第二啮合面3呈半圆形，第一啮合面2上的圆弧段和第二啮合面3上的圆弧段的圆心角大于180°；
第一啮合面2的一端与第一啮合面3的一端向拉链牙主体内凹陷形成第一啮合凹部4、第二啮合凹部5以及一啮合部6；第一啮合凹部4在远离啮合部6的一端设有至少一个凸起的第一定位部7，第二啮合凹部5在远离啮合部6的一端设有至少一个凸起的第二定位部8，啮合部6的端面上设有至少一个对应于第一定位部7或第二定位部8的定位槽9；第一定位部7与第二定位部8相对设置，第一定位部7、第二定位部8以及定位槽9的个数相同。
本实施例中，啮合部6上下两端为啮合部6长度方向上的两个端，并且两端的连线与链带长度方向上互相垂直，第一啮合凹部4的上下两端方向与啮合部6上下两端方向一致，第二啮合凹部5上下两端方向与啮合部6上下两端方向一致。
在本实施例中，第一定位部7、第二定位部8以及定位槽9各有一个,第一定位部7设于第一啮合凹部4远离啮合部6的一端的中部，第二定位部8设于第二啮合凹部5远离啮合部6的一端的中部，定位槽9设于啮合部6端面的中部。
本发明提供一种圆牙拉链，包括拉链牙主体1，拉链牙主体1为呈半圆形的柱状体，拉链牙主体1的两个啮合面的一端向拉链牙主体1内凹陷形成啮合部6和啮合凹部，啮合凹部上设有定位部，啮合部6上设有定位槽；圆牙拉链的结构设计独特，当拉链牙相互啮合时，相互啮合的拉链牙呈圆形，与现有技术相比，本发明的圆牙拉链牙在相互啮合时为双重的啮合锁定，拉链牙的啮合部6与另一拉链牙的啮合凹部相互啮合，拉链牙的定位部与另一拉链牙的定位槽9相互卡合锁定，其在两个维度方向上对拉链牙进行啮合锁定，使相互作用的拉链牙啮合地更为牢固，即使受到来自左右方
向上较大外力的撕扯，相互啮合的拉链牙也不容易脱开。
第一定位部7、第二定位部8以及定位槽9各为一个，便于圆牙拉链的制作和生产，在拉链牙相互啮合时，有便于拉链牙的拉合。
本实施例中，第一定位部7与第二定位部8为呈三角形的柱状体,定位槽9为半圆形的凹槽；第一定位部7设于第一啮合凹部4远离啮合部6的一端的中部，第二定位部8设于第二啮合凹部5远离啮合部6的一端的中部，定位槽9设于啮合部6端面的中部。
本实施例中，所述啮合部6两端向接近链带的方向延伸设有半圆形的链牙侧部10，所述链牙侧部10的两侧连接第一啮合面2和第二啮合面3。
本实施例中，所述链牙侧部10包括啮合卡面11以及位于啮合卡面11两端的啮合凸面12，所述啮合卡面11中部与链带卡合连接；
半圆形的链牙侧部10为啮合卡面11的中部向靠近啮合部6两端的方向逐渐收缩，形成半圆形的链牙侧部10。
所述啮合凸面12的两侧边缘分别连接所述第一啮合凹部4和第二啮合凹部5。
本实施例中，所述啮合卡面11与啮合凸面12连接的一端设有两个牙肩13，两个牙肩13向远离啮合凸面12的方向延伸。
本实施例中，所述啮合凸面12的宽度小于同一条链带相邻的两个拉链牙上相邻牙肩13的距离。
本实施例中，所述啮合凸面12的两侧边缘在链带折弯至“U”型时，“U”型底部内侧的一条链带上的一个拉链牙的啮合凸面12的两侧边缘与相对链带上与所述一个拉链牙相邻的两个拉链牙的啮合凸面12的相邻一侧边缘抵靠；
本实施例中，所述啮合卡面11在链带折弯成“U”型时，“U”型底部内侧的一条链带上的一个拉链牙的啮合卡面11上的两个牙肩13与同一链带上与所属一个拉链牙相邻的两个拉链牙的相邻一侧牙肩13抵靠。
优选的，圆牙拉链的拉链牙1为一体成型。
第一啮合凹部4和第二啮合凹部5为弧形的凹部，啮合部6的端面为弧形的端面,第一啮合凹部4、第二啮合凹部5以及啮合部6的端面为弧形的设置符合圆牙拉链“圆”的设计理念，同时也便于拉链牙的制作和生产，在拉链牙相互啮合时，拉链拉合较为顺畅，不容易出现卡链的情况。
实施例2
本实施例与实施例1中的区别在于，所述啮合部6的端面外轮廓的宽度自端面中部向啮合部上下两端逐渐变小。
本实施例中，第一定位部7设于第一啮合凹部4远离啮合部6的一端的中部，第二定位部8设于第二啮合凹部5远离啮合部6的一端的中部，定位槽9设于啮合部6端面的中部。
所述啮合部6端面外轮廓的宽度自定位槽9向上下两端逐渐变小。
本实施例中，所述第一啮合凹部4为弧形的凹部，并且所述凹部的凹面自第一定位部7向上下两端逐渐加深。
本实施例中，所述第二啮合凹部5为弧形的凹部，并且所述凹部的凹面自第二定位部8向上下两端逐渐加深。
本实施例中，所述啮合凸面12的宽度为连接所述第一啮合凹部4与第二啮合凹部5的两侧边缘之间的距离，该距离沿远离啮合卡面11的方向逐渐变小或不变。
本实施例中，如图8所示第一啮合凹部4、第二啮合凹部5的凹面深度随着啮合部6端面宽度的减小而增加。
本实施例中，啮合部6远离链带一侧的端面为弧形的端面。且端面中部向靠近第一啮合凹部4和第二啮合凹部5的方向逐渐收缩。形成弧形。
优选的，如图9所示第一啮合凹部4靠近啮合部6一侧的凹面边缘与所述第二啮合凹部5靠近啮合部6一侧的凹面边缘连线为中部宽度向上下两端逐渐缩小的形状。
实施例3
本实施例与实施例1的区别为，优选的，如图10所示第一啮合凹部4靠近啮合部6一侧的凹面边缘与所述第二啮合凹部5靠近啮合部6一侧的凹面边缘连线为中部宽度不变，上下两端逐渐缩小的形状，其余与实施例1一致。
如图13所示当圆牙拉链啮合时，相互啮合的拉链牙1呈圆柱形，拉链牙1与其相邻的拉链牙之间的啮合部的定位槽部分紧密的啮合在一起，而啮合部6的两个端部与相邻的拉链牙啮合部两个端部间留有缝隙，当拉链牙1受力弯曲成“U”字形时，相互啮合的两个拉链牙1之间的啮合部的两个端部之间的缝隙受力闭合，同时同一条链带相邻的两个拉链牙的啮合卡面上的相邻牙肩13之间的缝隙也在力的作用下闭合，此时，受力弯曲状态的拉链牙之间的啮合力，变得十分稳固，杜绝了链牙1在受力挤压下“爆牙”的情况。
实施例4
参见图14，本实施例与实施例1的区别在于，第一啮合凹部4与第二啮合凹部5为非对称设置，啮合部6向第一啮合面2或第二啮合面3倾斜设置，对于由相互啮合的拉链牙形成的拉链而言，啮合部6向拉链拉合的方向倾斜设置，能提高拉链拉合时的顺畅度。其余与实施例1一致。
实施例5
参见图15，本实施例与实施例1的区别在于，拉连牙主体设有加强贴片，加强贴片一端接于所述啮合部两端向接近链带的方向延伸的链牙侧部，一端贴合于布带的表面向远离拉链牙的方向延伸。其中所述加强贴片与拉链牙主体可分别注塑成型，从制作工艺及加强贴片对于拉链平拉力度，本申请的加强贴片与拉链牙主题为一体成型。
本申请中加强贴片的形状可为圆弧状，梯状，或其它可贴合布带的形状；加强贴片增加了拉链
平拉力度的强度，延长拉链的寿命。
根据上述说明书的揭示和教导，本发明所属领域的技术人员还可以对上述实施方式进行变更和修改。因此，本发明并不局限于上面揭示和描述的具体实施方式，对发明的一些修改和变更也应当落入本发明的权利要求的保护范围内。此外，尽管本说明书中使用了一些特定的术语，但这些术语只是为了方便说明，并不对本发明构成任何限制。
Claims (20)
- 一种圆牙拉链，其特征在于：包括以固定间隔排列在链带上的拉链牙，所述拉链牙包括第一啮合面和第二啮合面，第一啮合面和第二啮合面的侧面外轮廓呈半圆形，第一啮合面外轮廓的圆弧段和第二啮合面外轮廓的圆弧段的圆心角大于180°；第一啮合面的一端与第二啮合面的一端向拉链牙主体内凹陷形成第一啮合凹部、第二啮合凹部以及啮合部；第一啮合凹部在远离啮合部的一侧设有至少一个凸起的第一定位部，第二啮合凹部在远离啮合部的一侧设有至少一个凸起的第二定位部，啮合部的端面上设有至少一个对应于第一定位部或第二定位部的定位槽；第一定位部与第二定位部相对设置，第一定位部、第二定位部以及定位槽的个数相同；第一定位部与第二定位部为呈三角形的柱状体，定位槽为呈半圆形的凹槽；第一啮合凹部与第二啮合凹部为非对称设置，啮合部向第一啮合面或第二啮合面倾斜设置；当圆牙拉链牙啮合时，相互啮合的圆牙拉链牙呈圆形。
- 根据权利要求1所述的圆牙拉链，其特征在于：所述啮合部的端面外轮廓的宽度自中部向上下两端逐渐变小。
- 根据权利要求2所述的圆牙拉链，其特征在于：第一定位部设于第一啮合凹部远离啮合部的一侧的中部，第二定位部设于第二啮合凹部远离啮合部的一侧的中部，定位槽设于啮合部端面的中部；所述啮合部端面外轮廓的宽度自定位槽向上下两端逐渐变小。
- 根据权利要求2所述的圆牙拉链，其特征在于：所述啮合部两端向接近链带的方向延伸设有半圆形的链牙侧部，所述链牙侧部的两侧连接所述第一啮合面和第二啮合面；所述链牙侧部包括啮合卡面，以及位于啮合卡面上下两端的啮合凸面，所述啮合卡面中部与链带卡合连接；所述啮合凸面的两侧边缘分别连接所述第一啮合凹部和第二啮合凹部；所述啮合卡面与啮合凸面连接的一端设有牙肩，所述牙肩沿链带的前后方向延伸。
- 根据权利要求4所述的圆牙拉链，其特征在于：所述啮合凸面的宽度为连接所述第一啮合凹部与第二啮合凹部的两侧边缘之间的距离，该距离沿远离啮合卡面的方向逐渐变小或不变。
- 根据权利要求4所述的圆牙拉链，其特征在于：所述啮合凸面的宽度小于同一条链带上相邻的两个牙肩的距离。
- 根据权利要求4所述的圆牙拉链，其特征在于：所述啮合凸面的两侧边缘在链带折弯至“U”型时，“U”型底部内侧的啮合凸面两侧边缘与相对链带上相邻的拉链牙的啮合凸面的一侧边缘抵靠。
- 根据权利要求4所述的圆牙拉链，其特征在于：所述啮合卡面在链带折弯成“U”型时，“U”型底部内侧的啮合卡面上的两个牙肩与相同链带上相邻拉链牙的牙肩抵靠。
- 根据权利要求4所述的圆牙拉链，其特征在于：所述第一啮合凹部为弧形的凹部，并且所述凹部的凹面自第一定位部向上下两端逐渐加深。
- 根据权利要求4所述的圆牙拉链，其特征在于：所述第二啮合凹部为弧形的凹部，并且所述凹部的凹面自第二定位部向上下两端逐渐加深。
- 根据权利要求4所述的圆牙拉链，其特征在于：啮合部的端面为弧形的端面。
- 根据权利要求4或11所述的圆牙拉链，其特征在于：所述第一啮合凹部、第二啮合凹部的凹面深度随着啮合部端面宽度的减小而增加。
- 根据权利要求4所述的圆牙拉链，其特征在于：所述第一啮合凹部靠近啮合部一侧的凹面边缘与所述第二啮合凹部靠近啮合部一侧的凹面边缘连线为中部宽度向上下两端逐渐缩小的形状。
- 根据权利要求4所述的圆牙拉链，其特征在于：所述第一啮合凹部靠近啮合部一侧的凹面边缘与所述第二啮合凹部靠近啮合部一侧的凹面边缘连线为中部宽度不变，上下两端逐渐缩小的形状。
- 根据权利要求1所述的圆牙拉链，其特征在于，第一定位部、第二定位部以及定位槽各有一个。
- 根据权利要求15所述的圆牙拉链，其特征在于，第一定位部设于第一啮合凹部远离啮合部的一端的中部，第二定位部设于第二啮合凹部远离啮合部的一端的中部，定位槽设于啮合部端面的中部。
- 根据权利要求1所述的圆牙拉链，其特征在于，第一啮合凹部和第二啮合凹部为弧形的凹部，啮合部的端面为弧形的端面。
- 根据权利要求1所述的圆牙拉链，其特征在于，圆牙拉链牙为一体成型。
- 根据权利要求1所述的圆牙拉链，其特征在于，所述拉连牙主体设有加强贴片，所述加强贴片一端接于所述啮合部两端向接近链带的方向延伸的链牙侧部，一端贴合于布带的表面向远离拉链牙的方向延伸。
- 根据权利要求19所述的圆牙拉链，其特征在于，所述加强贴片与拉链牙主体为一体成型。
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| CN201610781921.5 | 2016-08-31 | ||
| CN201610781921.5A CN106165946A (zh) | 2016-08-31 | 2016-08-31 | 一种圆制拉链牙 |
| CN201720557435.5U CN206791832U (zh) | 2017-05-18 | 2017-05-18 | 一种防爆牙圆牙拉链 |
| CN201720557435.5 | 2017-05-18 |
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