CN115486615A

CN115486615A - Zipper head and zipper

Info

Publication number: CN115486615A
Application number: CN202211319105.4A
Authority: CN
Inventors: 骆燕明
Original assignee: Jinjiang Fuxing Zipper Co ltd
Current assignee: Jinjiang Fuxing Zipper Co ltd
Priority date: 2022-10-26
Filing date: 2022-10-26
Publication date: 2022-12-20

Abstract

The invention discloses a zipper puller and a zipper, and particularly relates to the technical field of zippers, wherein the zipper puller comprises a puller body, a pulling piece mounting lug extends upwards from the top of the puller body, two side surfaces of the pulling piece mounting lug are respectively concave to form curved surfaces, the thickness of the pulling piece mounting lug is gradually reduced from two side walls to the middle of the pulling piece mounting lug, and a pulling piece mounting groove is formed downwards from the middle of the top surface of the pulling piece mounting lug to form a pair of claw parts.

Description

Zipper head and zipper

Technical Field

The invention relates to the technical field of zippers, in particular to a zipper head and a zipper.

Background

With the development of human social economy and science and technology, the zipper is developed from an initial metal material to a non-metal material, from a single variety and single function to a multi-variety and multi-specification comprehensive function, and goes through a long evolution process from a simple structure to the modern exquisite and beautiful appearance and colorful appearance. The performance, structure and material of the small zipper are changed day by day, the small zipper has wide application, and the small zipper extends into various fields of aerospace, aviation, military, medical treatment, civil use and the like, plays an increasingly large role in the life of people, and shows the importance and vitality of the small zipper more and more. A slide fastener, one of the ten most practical inventions for humans in this century, has been loaded with historical books.

The existing slide fastener generally includes fastener tapes, fastener elements fixed to the fastener tapes, and a slider provided between the fastener tapes for engaging and releasing the fastener elements on the fastener tapes. The zipper head generally comprises a zipper head body and a zipper pull, wherein the zipper head body is generally made of metal materials, a pair of zipper pull mounting posts are arranged at the top of the zipper head body, mounting holes are formed after the pair of zipper pull mounting posts are bent, and the zipper pull is rotatably arranged in the mounting holes. However, the pull tab mounting posts are generally the same in thickness, and stress cannot be dispersed in time when the posts are bent, so that expansion deformation or fracture and the like are easy to occur, and the quality and yield of the zipper head are affected.

Disclosure of Invention

The present invention is directed to overcome the above problems and to provide a slider and a slide fastener.

In order to achieve the purpose, the technical scheme adopted by the invention is as follows: a zipper puller comprises a puller body, wherein a pull piece mounting convex block extends upwards from the top of the puller body, two side faces of the pull piece mounting convex block are respectively concave to form curved surfaces, the thickness of the pull piece mounting convex block is gradually reduced from two side walls to the middle of the pull piece mounting convex block, a pull piece mounting groove is formed in the pull piece mounting convex block downwards from the middle of the top face of the pull piece mounting convex block to form a pair of claw parts, and the tops of the claw parts are oppositely bent and riveted to form a shaft hole.

Furthermore, the section of the pulling-on piece mounting groove is of a U-shaped structure.

Furthermore, after the tops of the pair of claws are oppositely bent and riveted, two side surfaces of the pull piece mounting lug are changed into hemispherical surfaces from curved surfaces.

The pull piece comprises a holding portion, a pair of supporting portions and a pivot portion, the supporting portions are symmetrically arranged at the end portions of the holding portion, the pivot portion is arranged between the supporting portions, two ends of the pivot portion are respectively connected with the inner side faces of the supporting portions, and the pivot portion is rotatably arranged in the shaft hole.

Furthermore, the inner side surfaces of the supporting parts are spherical curved surfaces, the spherical curved surfaces clamp the hemispherical surfaces on two sides of the pull piece mounting lug, and the distance between the spherical curved surfaces of the pair of supporting parts is smaller than the distance between the hemispherical surfaces on two sides of the pull piece mounting lug.

Furthermore, the holding part is provided with a yielding groove, and the width of the yielding groove is larger than the thickness of the side wall of the pull piece mounting lug.

Further, the pull tab is made of an elastic material, and the pivot portion is disposed in the shaft hole in an elastically deformed manner.

Furthermore, the elastic material is plastic and nylon.

Further, the claw portion has a radial thickness gradually decreasing upward from a bottom position of the tab attaching projection.

The present invention also provides a slide fastener including a pair of right and left fastener element tapes each having a fastener element at a side edge portion of a fastener stringer, and a slider as described above for engaging and disengaging the pair of right and left fastener elements.

As can be seen from the above description of the present invention, compared with the prior art, the zipper slider provided by the present invention has at least the following advantages:

1. in the process of bending and riveting the tops of the pair of claw parts in opposite directions to form the shaft holes, because the two side surfaces of the pull piece mounting lug are respectively concave inwards to form curved surfaces and the thickness of the pull piece mounting lug is gradually reduced from the two side walls to the middle, the width of the pull piece mounting groove is smaller than that of the side wall of the pull piece mounting lug, and the curved surfaces are in transition from the side wall of the pull piece mounting lug to the inner wall of the pull piece mounting groove, so that the stress generated by the claw parts during riveting towards the middle is gradually reduced, and meanwhile, the generated stress can be uniformly transmitted from the inner wall of the pull piece mounting groove to the side wall direction of the pull piece mounting lug, thereby the claw parts are not easy to generate expansion deformation and fracture during bending and riveting, the shaft holes formed after bending and riveting are firmer, and the quality and the yield of the zipper head are improved;

2. after the tops of the claw parts are oppositely bent and riveted, two side surfaces of the pull piece mounting lug are changed into hemispherical surfaces from curved surfaces, the pull piece is made of elastic materials, the pull piece comprises a holding part, a pair of supporting parts and a pivot part, the pivot part is arranged in the shaft hole in an elastic deformation mode, so that the pivot part is tightly matched with the shaft hole, the friction force between the pull piece and the pull piece mounting lug is increased, the inner side surface of the supporting part is a spherical curved surface, the spherical curved surface clamps the hemispherical surfaces on two sides of the pull piece mounting lug, and the distance between the spherical curved surfaces of the supporting parts is smaller than that between the hemispherical surfaces on two sides of the pull piece mounting lug, so that the spherical curved surfaces of the supporting parts clamp the spherical surfaces on two sides of the pull piece mounting lug through the elastic performance, the spherical curved surfaces are tightly matched with the hemispherical surfaces, the friction force between the hemispherical surfaces and the pull piece mounting lug is also increased, and the pull piece can be kept still at any position when the pull piece rotates by the pivot part, namely the pull piece can not shake up and down and left and right, the pull piece can not move, the effect that the pull piece can be integrally achieved, so that a user can move freely and the zipper head can be more beautiful and does not move;

3. the radial thickness of the claw part is gradually reduced from the bottom position of the pull tab installation lug upwards, so the claw part is easier to bend and rivet.

Drawings

FIG. 1 is a perspective view of a slider body in which the pawl portions are not bent and riveted;

FIG. 2 is a front view of the slider body with the pawl portion clinched unfolded;

FIG. 3 is a side view of the slider body with the pawl portion clinched unbent;

FIG. 4 is a bottom view of the slider body with the pawl portion not crimped;

FIG. 5 is a perspective view of the slider body in which the pawl portion is crimped;

FIG. 6 is a schematic view showing the overall structure of the slider of the present invention;

fig. 7 is a schematic view of the structure of the pull tab.

Detailed Description

The technical solutions in the present invention will be described below clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It is noted that the terms "comprises" and "comprising," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

Referring to fig. 1-5, a zipper head comprises a slider body 1, the slider body 1 is used for being matched with zipper teeth, the zipper teeth of a zipper are arranged in the slider body 1 in a penetrating manner, wherein a zipper piece mounting lug 2 extends upwards from the top of the slider body 1, two side surfaces of the zipper piece mounting lug 2 are respectively concave to form curved arc surfaces 21, the two formed curved arc surfaces 21 are identical in shape and structure, the thickness of the zipper piece mounting lug 2 is gradually reduced from two side walls to the middle of the zipper piece mounting lug 2, therefore, the thickness of the two side walls is large, the thickness of the middle position of the two side walls is small, a zipper piece mounting groove 22 is formed downwards from the middle of the top surface of the zipper piece mounting lug 2 to form a pair of claw parts 3, the pair of claw parts 3 are symmetrically arranged and identical in shape and structure, and the tops of the pair of claw parts 3 are oppositely bent and riveted to form a shaft hole 4 for mounting and rotating the zipper piece 6. In order to increase the riveting quality of the slider, the pull tab mounting protrusion 2 and the slider body 1 are optionally made of a metal material convenient for riveting, such as zinc alloy, copper, aluminum alloy, and the like.

Specifically, in the process of oppositely bending and riveting the tops of the pair of claws 3 to form the shaft holes 4 for installing and rotating the pull tabs 6, because the two side surfaces of the pull tab installation convex blocks 2 are respectively concave to form the cambered surfaces 21 and the thickness of the pull tab installation convex blocks 2 is gradually reduced from the two side walls to the middle, the width of the pull tab installation grooves 22 is smaller than the width of the side walls of the pull tab installation convex blocks 2, and the cambered surface transition is formed between the side walls of the pull tab installation convex blocks 2 and the inner walls of the pull tab installation grooves 22, therefore, the stress generated by the claws 3 in the middle riveting process can be gradually reduced, and meanwhile, the generated stress can be uniformly transmitted from the inner walls of the pull tab installation grooves 22 to the side walls of the pull tab installation convex blocks 2, so that the claws 3 are not easy to generate expansion deformation and fracture in the bending and riveting process, further, the shaft holes 4 formed after bending and riveting are firmer, and the quality and the yield of the zipper head are improved.

Referring to fig. 3, the section of the pull-tab mounting groove 22 is a U-shaped structure, wherein a certain distance is left between the arc bottom of the pull-tab mounting groove 22 of the U-shaped structure and the upper surface of the slider body 1, so that the interference between the front end of the pull-tab 6 and the upper surface of the slider body 1 in the rotation process is prevented, and two side walls of the pull-tab mounting groove 22 are inclined outwards by a certain angle, so that the distance between the two side walls is gradually increased.

Referring to fig. 5, after the top portions of the pair of claw portions 3 are bent toward each other and caulked, both side surfaces of the tab attaching projection 2 are changed from the curved surfaces 21 to the hemispherical surfaces 5.

As shown in fig. 6 to 7, the zipper slider further includes a pull tab 6, the pull tab 6 includes a holding portion 61, a pair of supporting portions 62, and a pivot portion 63, the pair of supporting portions 62 are symmetrically disposed at an end of the holding portion 61, the pivot portion 63 is disposed between the pair of supporting portions 62, two ends of the pivot portion 63 are respectively connected to inner side surfaces of the pair of supporting portions 62, and the pivot portion 63 is rotatably disposed in the shaft hole 4.

Specifically, the grip portion 61, the pair of support portions 62, and the pivot portion 63 are integrally formed, and the pull tab 6 is made of an elastic material including, but not limited to, plastic and nylon.

When the tops of the claw parts 3 are oppositely bent and riveted, the side wall and the bottom of the original pulling-on piece mounting groove 22 form an axle hole 4, the axle hole 4 can tightly wrap the pivot part 63 of the pulling-on piece 6, and the pulling-on piece 6 is made of elastic material, so the pivot part 63 is arranged in the axle hole 4 in an elastic deformation mode, and the pulling-on piece 6 can rotate around the axle hole 4 by utilizing the elastic performance and can not be clamped in the axle hole 4, and meanwhile, under the action of no external force, the rotating position of the pulling-on piece can be kept unchanged, namely, the pulling-on piece 6 can not shake up and down and can not move left and right.

Referring to fig. 7, the end of the support portion 62 away from the holding portion 61 is provided with a curved arc surface 621, the inner side surface of the support portion 62 is a spherical surface 622, the spherical surface 622 clamps the hemispherical surfaces 5 on both sides of the pull-tab mounting protrusion 2, and the distance between the spherical surfaces 622 of the pair of support portions 62 is smaller than the distance between the hemispherical surfaces 5 on both sides of the pull-tab mounting protrusion 2, so that it can be seen that the spherical surfaces 622 of the pair of support portions 62 clamp the hemispherical surfaces 5 on both sides of the pull-tab mounting protrusion 2 by elastic performance, so that the spherical surfaces 622 and the hemispherical surfaces 5 are tightly fitted, and the friction between the pull-tab 6 and the pull-tab mounting protrusion 2 is further increased, so that when the pull-tab 6 rotates by the pivot portion 63, the pull-tab 6 can be kept still at any position, i.e. the pull-tab 6 does not sway up and down or left and right, and left, and right, and the effect that the pull-tab 6 does not sway and left is achieved, and the whole can be moved freely moved, and the zipper head is more beautiful.

However, the spherical curved surface 622 of the support portion 62 may not be entirely spherical, and only the spherical curved surfaces 622 on both sides of the pivot portion 63 may be left in the longitudinal direction of the tab 6, thereby reducing the thickness of the entire tab 6.

Referring to fig. 4 and 7, the holding portion 61 is provided with a relief groove 611, the width of the relief groove 611 is larger than the thickness of the sidewall of the pull-tab mounting protrusion 2, wherein the cross-sectional shape of the relief groove 611 includes, but is not limited to, a rectangular structure, such as a trapezoidal structure in the present embodiment, the width of the relief groove 611 gradually decreases from one end of the holding portion 61 to the other end away from the supporting portion 62, and in the present embodiment, the thickness of the pull-tab mounting protrusion 2 from the bottom to the top thereof also has a decreasing trend, which is adapted to the decreasing trend of the width of the relief groove 611, so as to avoid the interference when the pull-tab 6 rotates with the pivot portion 63.

Referring to fig. 3, the radial thickness of the claw portions 3 gradually decreases from the bottom of the tab mounting protrusion 2, that is, the distance between the side wall of the tab mounting protrusion 2 and the side wall of the tab mounting groove 22 gradually decreases in the extending direction of the tab mounting protrusion 2, so that the pair of claw portions 3 are easier to bend and rivet, and the two side walls of the tab mounting protrusion 2 are arc-shaped curved surfaces 23, so that after the pair of claw portions 3 are riveted, the tops of the two side walls can form an arc surface, so that the slider body 1 is more attractive.

The present invention also provides a slide fastener including a pair of left and right fastener tapes each having a fastener element at a side edge portion of a fastener tape, and a slider as described above for engaging and disengaging the pair of left and right fastener elements. When the slider moves up and down along the fastener elements, the zipper can be opened or closed.

The above description is only a few specific embodiments of the present invention, but the design concept of the present invention is not limited thereto, and any insubstantial modifications made by the design concept should fall within the scope of the present invention.

Claims

1. A zipper puller comprises a puller body, and is characterized in that: the top of the slider body extends upwards to form a pull piece mounting convex block, two side faces of the pull piece mounting convex block are respectively concave inwards to form curved surfaces, the thickness of the pull piece mounting convex block is gradually reduced from two side walls to the middle of the pull piece mounting convex block, a pull piece mounting groove is formed in the pull piece mounting convex block downwards from the middle of the top face of the pull piece mounting convex block to form a pair of claw portions, and the tops of the claw portions are oppositely bent and riveted to form a shaft hole.

2. The slider according to claim 1, wherein: the section of the pull piece mounting groove is of a U-shaped structure.

3. The slider according to claim 2, wherein: after the tops of the claw parts are oppositely bent and riveted, two side surfaces of the pull piece mounting lug are changed into hemispherical surfaces from curved surfaces.

4. The slider according to claim 3, wherein: the pull piece comprises a holding portion, a pair of supporting portions and a pivot portion, the supporting portions are symmetrically arranged at the end portions of the holding portion, the pivot portion is arranged between the supporting portions, two ends of the pivot portion are respectively connected with the inner side faces of the supporting portions, and the pivot portion is rotatably arranged in the shaft hole.

5. The slider according to claim 4, wherein: the inner side surfaces of the supporting parts are spherical curved surfaces, the spherical curved surfaces clamp the hemispherical surfaces on two sides of the pull piece mounting lug, and the distance between the spherical curved surfaces of the pair of supporting parts is smaller than the distance between the hemispherical surfaces on two sides of the pull piece mounting lug.

6. The slider according to claim 5, wherein: the handle part is provided with a yielding groove, and the width of the yielding groove is larger than the thickness of the side wall of the pull piece mounting lug.

7. The slider according to claim 6, wherein: the pull piece is made of elastic material, and the pivot part is arranged in the shaft hole in an elastic deformation mode.

8. The slider according to claim 7, wherein: the elastic material is plastic and nylon.

9. The slider according to claim 1, wherein: the radial thickness of the claw portion gradually decreases from the bottom position of the pull tab mounting projection upward.

10. A slide fastener, characterized in that: the slide fastener slider according to any one of claims 1 to 9, comprising a pair of right and left fastener element tapes provided with fastener elements at side edge portions of fastener tapes, and the fastener element tapes for engaging and disengaging the pair of right and left fastener elements.