CN108741459B

CN108741459B - Zipper

Info

Publication number: CN108741459B
Application number: CN201810818569.7A
Authority: CN
Inventors: 吴良柳
Original assignee: Jiangsu Dazzac Accessories Co ltd
Current assignee: Jiangsu Dahuang Technology Co.,Ltd.
Priority date: 2018-07-24
Filing date: 2018-07-24
Publication date: 2021-02-05
Anticipated expiration: 2038-07-24
Also published as: CN108741459A

Abstract

The invention discloses a zipper, which comprises a zipper belt provided with zipper teeth and a zipper head, wherein the zipper head comprises an upper locking plate, a lower locking plate opposite to the upper locking plate and a zipper dividing block arranged between the upper locking plate and the lower locking plate, the zipper dividing block is provided with a first end used for being contacted with the zipper teeth and a second end opposite to the first end, an accommodating part is arranged in the zipper dividing block, the accommodating part is provided with a first opening arranged at the first end and a second opening arranged at the second end, a blade is telescopically arranged in the accommodating part, the front end of the blade provided with a cutting edge is positioned at the first end, the rear end of the blade opposite to the cutting edge is positioned at the second end, and the front end of the blade extends out of the first opening when the rear end of the blade is pushed from the second opening. The zipper can cut the zipper head when the zipper head is clamped in the zipper head and/or the zipper teeth, so that the zipper is prevented from being clamped.

Description

Zipper

Technical Field

The invention relates to the technical field of zippers, in particular to an anti-blocking zipper.

Background

A zipper generally includes a slider and two fastener tapes, each fastener tape has a row of fastener elements, and the two rows of fastener elements on the two fastener tapes are arranged in a staggered manner. When people use the zipper, the thread end on the clothes is often carelessly clamped in the zipper head and/or the zipper teeth, so that the zipper is clamped. Because the zipper head body is usually integrally formed, the zipper is difficult to restore to normal by bare hands of people, and even the zipper is damaged by excessive force, so that inconvenience is brought to the life of people.

Disclosure of Invention

The invention aims to provide a zipper, which can cut a thread end when the thread end is clamped in a zipper head and/or a zipper tooth, so that the zipper is prevented from being clamped.

In order to solve the technical problems, the invention adopts the following technical scheme: this zip fastener is including being provided with the chain belt of chain tooth and draw zipper head, draw zipper head including last jam plate, with go up jam plate relative lower jam plate and setting and be in go up the jam plate with branch chain piece between the jam plate down, divide chain piece have be used for with the first end of chain tooth contact and with the second end that first end is relative, be provided with the portion of acceping in the branch chain piece, the portion of acceping has to be seted up the first opening of first end and set up the second opening of second end, scalable being provided with the blade in the portion of acceping, the blade has the front end of cutting edge to be located first end, on the blade with the rear end that the cutting edge is relative is located the second end is followed the second opening promotes during the rear end of blade the front end of blade is followed first opening stretches out.

Compared with the prior art, the invention has the following beneficial effects: according to the invention, the accommodating part is arranged on the zipper dividing block of the zipper, and the blade is telescopically arranged in the accommodating part, so that when the zipper head is clamped in the zipper head and/or the zipper teeth, the rear end of the blade is pushed from the second opening through external force, the front end of the blade extends out of the first opening, the front end of the blade is provided with the cutting edge, and the cutting edge can cut off the zipper head clamped in the zipper head and/or the zipper teeth, so that the zipper dividing block in the zipper is prevented from being wound by the zipper head and clamped.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

FIG. 1 is a schematic view showing the structure of a slide fastener of the present invention;

fig. 2 is a left side view of the fastener slider of embodiment 1 of the present invention;

fig. 3 is a plan view of a fastener slider according to embodiment 1 of the present invention;

FIG. 4 is a cross-sectional view of the slider of FIG. 2 taken along line A1-A1;

FIG. 5 is a cross-sectional view of the slider of FIG. 3 taken along line B1-B1;

fig. 6 is a partially enlarged schematic view of a portion D1 in fig. 5;

FIG. 7 is a cross-sectional view of the slider of FIG. 3 taken along line C1-C1;

FIG. 8 is a top view of a branching block in embodiment 1 of the present invention;

FIG. 9 is a front view of the chaining block of FIG. 8;

FIG. 10 is a left side view of the chaining block of FIG. 8;

FIG. 11 is a right side view of the chaining block of FIG. 8;

FIG. 12 is a cross-sectional view of the zipper block of FIG. 8 taken along line E1-E1;

FIG. 13 is a cross-sectional view of the chain segment of FIG. 8 taken along line F1-F1;

fig. 14 is a top view of a blade in example 1 of the present invention;

FIG. 15 is a front view of the blade of FIG. 14;

fig. 16 is a left side view of the slider of the slide fastener of embodiment 2 of the invention;

fig. 17 is a plan view of a fastener slider of embodiment 2 of the invention;

FIG. 18 is a cross-sectional view of the slider of FIG. 16 taken along line A2-A2;

FIG. 19 is a cross-sectional view of the slider of FIG. 17 taken along line B2-B2;

fig. 20 is a partially enlarged schematic view of a portion D2 in fig. 19;

FIG. 21 is a cross-sectional view of the slider of FIG. 17 taken along line C2-C2;

FIG. 22 is a top view of a branching block in embodiment 2 of the present invention;

FIG. 23 is a front view of the chaining block of FIG. 22;

FIG. 24 is a left side view of the chaining block of FIG. 22;

FIG. 25 is a right side view of the chaining block of FIG. 22;

FIG. 26 is a cross-sectional view of the chain segment of FIG. 22 taken along line E2-E2;

FIG. 27 is a cross-sectional view of the chain segment of FIG. 22 taken along line F2-F2;

FIG. 28 is a top view of a blade in example 2 of the present invention;

FIG. 29 is a front view of the blade of FIG. 28;

FIG. 30 is a right side view of the blade of FIG. 28;

fig. 31 is a left side view of a fastener slider of embodiment 3 of the invention;

fig. 32 is a plan view of a fastener stringer according to embodiment 3 of the present invention;

FIG. 33 is a cross-sectional view of the slider of FIG. 31 taken along line A3-A3;

FIG. 34 is a cross-sectional view of the zipper slide of FIG. 32 taken along line B3-B3;

FIG. 35 is a cross-sectional view of the zipper slide of FIG. 32 taken along line C3-C3;

fig. 36 is a front view of a blade in example 3 of the present invention.

Description of reference numerals:

100: a zipper tape;

110: a zipper tooth;

200. 300, 400: a slider of a zipper fastener;

210: an upper lock plate;

211: side plate of upper lock plate

220: a lower lock plate;

221: lower lock plate side plate

230. 330 and 430: dividing the chain block;

230a, 330a, 430 a: a first end;

230b, 330b, 430 b: a second end;

231. 331, 431: a housing part;

231a, 331a, 431 a: a first opening;

231b, 331b, 431 b: a second opening;

232. 332: a card slot;

240. 340, 440: a blade;

240a, 340a, 440 a: a front end;

240b, 340b, 440 b: a back end;

240c, 440 c: a via hole;

340 c: a clamping block;

241: a push rod;

242. 342, 442: an elastic member;

250: an arched hook;

260: a pull tab.

Detailed Description

The invention mainly provides a solution for the problem that the traditional zipper cannot be normally used when the zipper head is clamped in the zipper head and/or the zipper teeth in use.

In order to make the objects, technical solutions and advantageous technical effects of the present invention more clearly and completely apparent, the technical solutions in the embodiments of the present invention will be described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the 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.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or the orientations or positional relationships that the products of the present invention are conventionally placed in use, and are only used for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

Example 1

Referring to fig. 1, the slide fastener of the present invention includes a fastener stringer 100 and a slider 200. The number of the chain belts 100 is two, each chain belt 100 is provided with a row of chain teeth 110, and the two rows of chain teeth 110 on the two chain belts 100 are staggered. Referring to fig. 2 and 3, the zipper slider 200 at least includes an upper lock plate 210, a lower lock plate 220 and a zipper dividing block 230. The upper lock plate 210 is disposed opposite to the lower lock plate 220, and the zipper dividing block 230 is disposed between the upper lock plate 210 and the lower lock plate 220. Referring to fig. 4 to 7, the zipper block 230 has a first end 230a and a second end 230b opposite to the first end 230a, and the first end 230a is configured to contact the zipper element 110. The chain-dividing block 230 further has a receiving portion 231 therein, the receiving portion 231 has a first opening 231a and a second opening 231b, the first opening 231a is disposed at the first end 230a, and the second opening 231b is disposed at the second end 230 b. The zipper slider 200 further includes a blade 240, the blade 240 has a front end 240a and a rear end 240b, the front end 240a is an end of the blade 240 having a cutting edge, and the rear end 240b is an end of the blade 240 opposite to the cutting edge. The blade 240 is telescopically disposed in the receiving portion 231, a front end 240a of the blade 240 is located at the first end 230a, a rear end 240b of the blade 240 is located at the second end 230b, and the front end 240a of the blade 240 extends out of the first opening 231a of the receiving portion 231 when the rear end 240b of the blade 240 is pushed from the second opening 231 b.

According to the invention, the accommodating part 231 is arranged on the zipper dividing block 230 of the zipper puller 200, the blade 240 is arranged in the accommodating part 231 in a telescopic manner, when the zipper puller is clamped in the zipper puller and/or the zipper teeth, the rear end 240b of the blade 240 is pushed from the second opening 231b through external force, so that the front end 240a of the blade 240 extends out of the first opening 231a, the front end 240a of the blade 240 is provided with the blade edge, and the blade edge can cut off the zipper puller clamped in the zipper puller and/or the zipper teeth, so that the zipper dividing block 230 in the zipper puller 200 is prevented from being wound by the zipper puller and being clamped; at the same time, after the thread end is cut, the pressing of the rear end 240b of the blade 240 is removed, and the blade 240 is retracted into the receiving portion 231, thereby preventing the blade edge of the blade 240 from contacting the element 110 to cut the element 110 and from being shaved when the slider 200 is pulled; in addition, the blade 240 is disposed in the receiving portion 231 and the front end 240a having the blade edge is located at the first end 230a of the zipper dividing block 230, and the first end 230a of the zipper dividing block 230 is located inside the zipper, so that the blade edge of the blade 240 can be prevented from being cut by a user when the zipper is used.

Referring to fig. 4, 8 to 13, the chain-dividing block 230 is substantially triangular prism-shaped, and the chain-dividing block 230 has three side surfaces: in this embodiment, the junction between the first side surface and the second side surface is in smooth transition and forms an end surface of the first end 230a, the third side surface is located at the second end 230b, the second end 230b is disposed at the outer side of the zipper, and the third side surface forms an end surface of the second end 230 b. The advantage of this arrangement is that the zipper block 230 has a larger volume while the width of the first end 230a is smaller, the larger volume of the zipper block 230 facilitates reducing the difficulty of arranging the blade 240 in the zipper block 230 during the production process, and the smaller width of the first end 230a facilitates the direct contact between the first end 230a and the zipper teeth 110, so that the blade 240 arranged in the zipper block 230 can cut the thread end jammed in the zipper head and/or the zipper teeth even if the length of the blade extending from the first opening 231a is shorter. However, the shape of the zipper block 230 is not limited, and in other embodiments, the zipper block 230 may be a semi-cylindrical shape, a quadrangular prism shape, or the like.

Referring to fig. 10 and 12, the chain-dividing block 230 is provided with the receiving portion 231, the receiving portion 231 is a slot hole penetrating through the chain-dividing block 230, and openings on two sides of the slot hole respectively form the first opening 231a and the second opening 231 b. In this embodiment, the cross section of the slot is preferably rectangular, and the cross section is a plane parallel to the third side, and it is understood that the projection area of the slot on the third side is also rectangular. By providing the receiving portion 231 with a rectangular cross-section, the receiving portion 231 has a larger height so as to provide a wider blade 240 therein, and the larger width of the blade 240 facilitates the blade 240 to align with the thread end and perform cutting. In other specific embodiments, the sub-link block 230 may be configured to be composed of two sub-link blocks, where the sub-link blocks are a first sub-link block and a second sub-link block, the first sub-link block and the second sub-link block are opposite and spaced in parallel, a gap is formed between the first sub-link block and the second sub-link block, and the gap may serve as the receiving portion 231.

The blade 240 is provided in the accommodating portion 231 in a retractable manner.

Referring to fig. 4, 7, 14 and 15, the blade 240 includes a body, the body has the front end 240a and the rear end 240b, and the body is further provided with a through hole 240 c. In this embodiment, the number of the via holes 240c is one, but in other specific embodiments, the number of the via holes 240c may be multiple. The via 240c has a square shape, and in other embodiments, the via 240c may also have a circular shape, which is not limited herein.

Referring to fig. 4, 12 and 13, two slots 232 are disposed on the inner side wall of the accommodating portion 231. In other embodiments, the number of the card slots 232 may be one or more than two. The engaging groove 232 is a concave groove formed by inward recessing of the inner sidewall of the receiving portion 231. In detail, the two slots 232 are respectively formed on the inner sidewalls of both sides of the receiving portion 231, and the two slots 232 are parallel to each other.

Referring to fig. 4 to 6, the zipper slider 200 further includes a push rod 241 and an elastic member 242. The push rod 241 penetrates through the through hole 240c, and the end of the push rod 241 is clamped in the clamping groove 232. In detail, the push rod 241 is configured to be matched with the through hole 240c, so as to enhance the stability between the push rod 241 and the blade 240 and prevent the blade 240 from swinging. In this embodiment, the through hole 240c has a square shape, and accordingly, the cross section of the push rod 241 is also preferably square. In other embodiments, when the through hole 240c is circular, the cross section of the push rod 241 is preferably circular. It should not be understood that the shape of the through hole 240c must be consistent with the cross-sectional shape of the push rod 241, and in other embodiments, the push rod 241 can pass through the through hole 240 c. In addition, in this embodiment, the number of the clamping grooves 232 is two, and two ends of the push rod 241 are respectively clamped in the two clamping grooves 232. In other embodiments, when the number of the slots 232 is singular, the push rod 241 may be configured such that one end is clamped in the slot 232 and the other end is close to the inner sidewall of the receiving portion 231. The elastic member 242 is disposed in the engaging groove 232. In this embodiment, the elastic member 242 is a spring. In other embodiments, the elastic member 242 may be a rubber strip having elasticity, or the like. It is understood that in the present embodiment, the number of the locking slots 232 is two, and the number of the elastic members 242 is also preferably two. In other embodiments, the number of the elastic members 242 may be one or more than two. In more detail, the elastic member 242 is located between an end of the push rod 241 and an end surface of the locking groove 232. In this embodiment, the elastic member 242 is located between the first end 230a and the push rod 241, and two ends of the elastic member 242 are respectively connected to an end of the push rod 241 and an end surface of the engaging groove 232. In other embodiments, the elastic element 242 may be located between the first end 230a and the push rod 241, and both ends of the elastic element 242 are not connected to the end of the push rod 241 and the end surface of the locking slot 232. In other embodiments, the elastic element 242 may be further located between the second end 230b and the push rod 241, and two ends of the elastic element 242 are respectively connected to the end of the push rod 241 and the end surface of the locking slot 232.

In this embodiment, the inner side wall of the accommodating portion 231 is provided with a slot 232, the blade 240 is provided with a via hole 240c, the zipper head 200 is further provided with a push rod 241 and an elastic member 242, the push rod 241 penetrates through the via hole 240c, the end portion of the push rod is clamped in the slot 230, and the elastic member 240 is arranged in the slot 232, so that the blade 240 is telescopically arranged in the accommodating portion 231. When the slide fastener is used, the rear end 240b of the blade 240 is pushed from the second opening 231b, so that the blade 240 moves along the receiving portion 231 toward the first end 230a of the zipper dividing block 230 and the front end 240a of the blade 240 protrudes from the first opening 231 a. In the process that the blade 240 moves towards the first end 230a of the chain-dividing block 230, the blade 240 drives the push rod 241 passing through the through hole 240c to move towards the first end 230a along with the clamping groove 232. The push rod 241 presses the elastic member 242 disposed in the engaging groove 232 and located between the first end 230a and the push rod 241 in the process of moving toward the first end 230 a. The front end 240a of the blade 240 protrudes from the first opening 231a to cut the end of the thread caught in the slider and/or the coupling element. After cutting off the thread end, the pressing on the rear end 240b of the blade 240 is removed, the pressed elastic member 242 is extended, during the extension process, the elastic member 242 pushes the push rod 241 to move along the clamping groove 232 to the second end 230b of the zipper dividing block 230, the push rod 241 further drives the blade 240 to move along the accommodating part 231 to the second end 230b of the zipper dividing block 230 when moving to the second end 230b, so that the blade 240 retracts into the accommodating part 231, and the blade 240 is reset. In other embodiments, if the elastic member 242 is disposed in the slot 232 and located between the second end 230b and the push rod 241, and two ends of the elastic member 242 are connected to an end of the push rod 241 and an end of the slot 232, respectively, the push rod 241 may elongate the elastic member 242 during the process of moving toward the first end 230 a. After the rear end 240b of the blade 240 stops being pressed, the elongated elastic member 242 contracts, and in the process of contracting, the elastic member 242 pulls the push rod 241 to move along the snap groove 232 towards the second end 230b of the zipper dividing block 230, and when the push rod 241 moves towards the second end 230b, the push rod 241 further drives the blade 240 to move along the accommodating part 231 towards the second end 230b of the zipper dividing block 230, so that the blade 240 retracts into the accommodating part 231, and the blade 240 resets.

The blade 240 is preferably sized to fit the shape of the receiving portion 231. When the blade 240 is disposed in the accommodating portion 231, the inner side wall of the accommodating portion 231 can limit the blade 240 to prevent the blade 240 from swinging; meanwhile, the blade 240 also limits the elastic member 242 disposed in the slot 232, and prevents the elastic member 242 from sliding out of or protruding from the slot 232.

Referring to fig. 2 and 5, upper lock plate side plates 211 are respectively disposed on two sides of the upper lock plate 210, lower lock plate side plates 221 are respectively disposed on two sides of the lower lock plate 220, the upper lock plate side plates 211 correspond to the lower lock plate side plates 221, and a space is formed between the upper lock plate side plates 211 and the lower lock plate side plates 221, the space is used for penetrating through the fastener chain 100, and meanwhile, the upper lock plate side plates 211 and the lower lock plate side plates 221 can also limit the fastener elements 110 in the fastener head 200 and squeeze the fastener elements 110 when the fastener chain 100 enters the fastener head 200, so that two rows of staggered fastener elements 110 on two fastener chains 100 are matched with each other.

Referring to fig. 2 and 3, in order to facilitate pulling the zipper slider 200, the zipper slider 200 further includes an arcuate hook 250 and a pull tab 260. The arc-shaped hook 250 is fixedly arranged on one side surface of the upper locking plate 210 opposite to the zipper dividing block 230, and the arc-shaped hook 250 is connected with the pull tab 260. When the zipper is used, the zipper puller 200 can be driven to move back and forth by pulling the zipper pull 260, so that the zipper is convenient and labor-saving.

Example 2

In this embodiment, the specific manner of the retractable blade is changed from that of embodiment 1.

Specifically, referring to fig. 16 to 21, the zipper includes a zipper slider 300, the zipper slider 300 includes a zipper dividing block 330, a receiving portion 331 is disposed on the zipper dividing block 330, and a blade 340 is telescopically disposed in the receiving portion 331.

Referring to fig. 18, 28 to 30, the blade 340 includes a body, the body has a front end 340a and a rear end 340b opposite to the front end 340a, and the body is further provided with a latch 340c, and the latch 340c is disposed on a side surface of the body. In this embodiment, the number of the latch 340c is two, and the two latch 340c are respectively disposed on two side surfaces of the body and are corresponding to each other. However, in other embodiments, the number of the latch 340c may be one or two or more, and when the number of the latch 340c is two or more, the two or more latches 340c may be respectively disposed on two side surfaces of the body, or may be disposed on the same side surface of the body. Also, the latch 340c is integrally formed with the body. In other embodiments, the latching block 340c and the body may be separately molded, and then the latching block 340c is fixedly disposed on the side surface of the body by bonding or welding.

Referring to fig. 22 to 27, two slots 332 are formed on the inner side wall of the receiving portion 331. In other embodiments, the number of the locking slots 332 may be one or more than two, and preferably, the number of the locking slots 332 is equal to the number of the locking blocks 340 c. The engaging groove 332 is a concave groove formed by inward recessing of the inner sidewall of the receiving portion 331. In detail, the two slots 332 are respectively formed on the inner sidewalls of the two sides of the receiving portion 331, and the two slots 332 are parallel to each other.

Referring to fig. 18 to 21, the zipper slider 300 further includes an elastic member 342. The elastic member 342 is disposed in the engaging groove 332. In this embodiment, the elastic member 342 is a spring. In other embodiments, the elastic member 342 may be a rubber strip having elasticity, or the like. It can be understood that, in the present embodiment, the number of the locking slots 332 is two, and the number of the elastic members 342 is also two. In other embodiments, the number of the elastic members 342 may be one or more than two. In more detail, the elastic member 342 is located between an end of the latch 340c and an end surface of the latch groove 332. In this embodiment, the elastic member 342 is located between the first end 330a of the zipper dividing block 330 and the latch 340c, and two ends of the elastic member 342 are respectively connected to the end of the latch 340c and the end surface of the engaging slot 332. In other embodiments, the elastic element 342 may be located between the first end 330a of the chaining block 330 and the latch 340c, and both ends of the elastic element 342 are not connected to the end of the latch 340c and the end surface of the locking slot 332. In other embodiments, the elastic element 342 may be located between the second end 330b of the chaining unit 330 and the latch 340c, and two ends of the elastic element 342 are connected to the end of the latch 340c and the end surface of the engaging slot 332, respectively.

In this embodiment, the inner side wall of the accommodating portion 331 is provided with a clamping groove 332, the blade 340 is fixedly provided with a clamping block 340c, the clamping block 340c is clamped in the clamping groove 332, the zipper head 300 is further provided with an elastic member 342, and the elastic member 340 is arranged in the clamping groove 332, so that the blade 340 can be telescopically arranged in the accommodating portion 331. When the slide fastener is used, the rear end 340b of the blade 340 is pushed from the second opening 331b of the receiving portion 331, so that the blade 340 moves along the receiving portion 331 toward the first end 330a of the zipper dividing block 330 and the front end 340a of the blade 340 protrudes from the first opening 331a of the receiving portion 331. In the process that the blade 340 moves towards the first end 330a of the zipper dividing block 330, the blade 340 will drive the latch 340c to move towards the first end 330a along with the latch slot 332. The latch 340c may press the elastic member 342 disposed in the latch slot 332 and located between the first end 330a and the latch 340c during the process of moving toward the first end 330 a. The front end 340a of the blade 340 protrudes from the first opening 331a to cut the end of the thread caught in the slider and/or the coupling element. After cutting off the thread end, the pressing on the rear end 340b of the blade 340 is removed, the extruded elastic member 342 extends, during the extension process, the elastic member 342 pushes the fixture block 340c to move along the clamping groove 332 towards the second end 330b of the zipper dividing block 330, and when the fixture block 340c moves towards the second end 230b, the blade 340 is further driven to move along the accommodating portion 331 towards the second end 330b of the zipper dividing block 330, so that the blade 340 retracts into the accommodating portion 331, and the blade 340 resets. In other embodiments, if the elastic member 342 is disposed in the latch groove 332 and between the second end 330b and the latch 340c, and both ends of the elastic member 342 are respectively connected to the end of the latch 340c and the end surface of the latch groove 332, the elastic member 342 may be elongated when the latch 340c moves toward the first end 330 a. After the rear end 340b of the blade 340 stops being pressed, the elongated elastic member 342 contracts, and in the process of contracting, the elastic member 342 pulls the fixture block 340c to move along the clamping slot 332 toward the second end 330b of the zipper dividing block 330, and when the fixture block 340c moves toward the second end 330b, the blade 340 is further driven to move along the accommodating portion 331 toward the second end 330b of the zipper dividing block 330, so that the blade 340 retracts into the accommodating portion 331, and the blade 340 is reset.

Example 3

Specifically, referring to fig. 31 to 33, the zipper includes a zipper slider 400, the zipper slider 400 includes a zipper-dividing block 430, a receiving portion 431 is disposed on the zipper-dividing block 430, and a blade 440 is telescopically disposed in the receiving portion 431.

Referring to fig. 33 to 36, the blade 440 includes a body, and the body has a front end 440a and a rear end 440b opposite to the front end 440a, and the body is further provided with a through hole 440 c. In this embodiment, the number of the vias 440c is one, but in other specific embodiments, the number of the vias 440c may be multiple. The via 240c has a circular shape, and in other embodiments, the via 440c may have a square shape, a rectangular shape, or the like, which is not limited herein.

Referring to fig. 33 to 35, the zipper slider 400 further includes an elastic member 442. The elastic member 442 passes through the through hole 440c, and two ends of the elastic member 442 are respectively and fixedly connected to the inner sidewalls of two sides of the receiving portion 431. In detail, an end of the elastic member 442 is fixedly coupled to an inner sidewall of the receiving portion 431 by welding or bonding. In order to more stably connect the elastic member 442 with the inner sidewall of the receiving portion 431, an end portion of the elastic member 442 is embedded in the zipper-dividing block 430. In this embodiment, the elastic member 442 is a rubber strip having elasticity. In this embodiment, the number of the through holes 440c is one, and the number of the elastic members 442 is also 1. In other embodiments, the number of the elastic members 442 may be multiple.

In this embodiment, the blade 440 is provided with a through hole 440c, an elastic member 442 is further disposed in the zipper head 400, the elastic member 442 passes through the through hole 440c, and both end portions of the elastic member 442 are respectively fixedly connected to the inner sidewalls of both sides of the accommodating portion 431, so that the blade 440 can be telescopically disposed in the accommodating portion 431. When the zipper is used, the rear end 440b of the blade 440 is pushed from the second opening 431b of the receiving portion 431, so that the blade 440 moves along the receiving portion 431 to the first end 430a of the zipper-dividing block 430 and the front end 440a of the blade 440 extends out of the first opening 431a of the receiving portion 431. During the movement of the blade 440 toward the first end 430a of the chaining block 430, the blade 440 elongates the elastic member 442 passing through the through hole 440 c. The front end 440a of the blade 440 protrudes from the first opening 431a to cut the end of the thread caught in the slider and/or the coupling element. After the thread end is cut off, the rear end 440b of the blade 440 is not pressed, the elongated elastic member 442 contracts, and in the process of contracting, the elastic member 442 pulls the blade 440 to move along the accommodating portion 431 to the second end 430b of the zipper-dividing block 430, so that the blade 440 retracts into the accommodating portion 431, and the blade 440 resets.

Claims

1. The utility model provides a zipper, its is including the chain belt that is provided with the chain tooth and draw zipper head, draw zipper head including last locking plate, with lower locking plate relative with the setting of last locking plate is in go up the locking plate with branch chain piece between the locking plate down, its characterized in that: divide the chain piece have be used for with the first end of chain tooth contact and with the second end that first end is relative, divide the interior portion of being provided with of chain piece, the portion of acceping has to be seted up the first opening of first end and set up the second opening of second end, scalable being provided with the blade in the portion of acceping, the blade has the front end of cutting edge to be located first end, on the blade with the rear end that the cutting edge is relative is located the second end, follow the second opening promotes when the rear end of blade the front end of blade is followed first opening stretches out.

2. The zipper of claim 1, wherein the blade has a through hole, the inner sidewall of the receiving portion has a slot, the slider further comprises a push rod and an elastic member, the push rod passes through the through hole and the end portion of the push rod is clamped in the slot, the elastic member is disposed in the slot, and the elastic member is located between the end portion of the push rod and the end surface of the slot.

3. The zipper of claim 2, wherein the resilient member is located between the first end and the push rod.

4. The slide fastener according to claim 2, wherein said elastic member is located between said second end and said push rod, and both ends of said elastic member are connected to an end portion of said push rod and an end surface of said engaging groove, respectively.

5. The zipper according to claim 1, wherein the blade comprises a body and a clamping block fixedly arranged on at least one side surface of the body, a clamping groove is formed in an inner side wall of the accommodating portion, the clamping block is clamped in the clamping groove, the zipper head further comprises an elastic member, the elastic member is arranged in the clamping groove, and the elastic member is positioned between an end portion of the clamping block and an end surface of the clamping groove.

6. The zipper of claim 5, wherein the resilient member is located between the first end and the latch.

7. The zipper according to claim 5, wherein the elastic member is located between the second end and the latch, and both ends of the elastic member are respectively connected with the end of the latch and the end surface of the latch.

8. The zipper of claim 1, wherein the blade is provided with a through hole, the zipper puller further comprises an elastic piece, the elastic piece penetrates through the through hole, and two ends of the elastic piece are fixedly connected with the inner side wall of the accommodating part.

9. The slide fastener according to claim 1, wherein the divided pieces include a first sub divided piece and a second sub divided piece that are separated in parallel, and the receiving portion is a gap between the first sub divided piece and the second sub divided piece.

10. The zipper of claim 1, wherein the receiving portion is a slot extending through the zipper block.