TWI784787B - Anti-pinch zipper - Google Patents

Abstract

The invention discloses an anti-pinch zipper, which comprises two chain belts and a zipper slider. The inner side of the chain cloth of each chain belt is folded forward to form a chain tooth belt and a sliding space, and the chain teeth are arranged on the chain tooth belt; The slider of the zipper has a top plate, a pull piece and a connecting device are arranged on the outside of the top plate; a base core is arranged in the center of the inner surface of the top plate, side plates are arranged on both sides of the inner surface of the top plate, and the bottom end of the side plate has a second guide plate, and the second guide plate The inner edge of the convex plate protrudes toward the center to form a convex plate, and the inner edge of the convex plate and the base core are spaced to form a Y-shaped guide cloth seam; thereby, the sprockets and the sprocket belts of the two chain belts pass through the zipper head, so that the zipper head The top plate, connecting device and pull piece are located on the front side of the zipper, and the two chain fabrics protrude and unfold through the Y-shaped guide cloth seam to cover the back of the zipper puller. When the zipper puller moves, the second guide plate is under the sprocket belt Sliding in the sliding space to achieve the purpose of anti-pinch.

Description

Anti-pinch zipper

The invention relates to the technical field of zippers, in particular to an anti-pinch zipper which can prevent the zipper head from being caught in the inner fabric of clothing.

The zippers that are commonly used in clothing today, whether they are used in the pockets of clothing, the opening of trousers/skirts or the two skirts of coats, etc., as long as the clothing has a lining, when the zipper head moves, it may be caught inside. If it is seriously involved in the inner fabric, the entire zipper slider will be stuck, making it impossible to advance or retreat at all. Destructive repairs are often required to restore the original function of the garment and zipper.

In order to prevent the zipper puller from being caught in the inner fabric of the garment, WO2014033926A1 and US6701584B2 patents propose a technology of adding a lead-in piece to the front end of the zipper puller. Through the lead-in piece, the angle at which the chains separated on both sides are introduced into the zipper puller becomes smaller, preventing the inner fabric as much as possible. Rolled into the zipper pull with the chain. But it adds a lead-in piece, makes the volume of zipper puller become bigger, destroys the overall appearance of clothing, and along with the shape of original zipper puller, size is different, all will implement matching lead-in piece, therefore not generally applied on the clothing.

Other known anti-pinch zipper slider technologies, such as EP3289908A1, Japanese patent announcements JP2004024740A, JP5715576B2, and Chinese patent publications CN107567291A, CN106333432A, CN104106888A, CN211298642U, etc., all just use the zipper slider to push the inner fabric, and try to avoid the zipper slider from getting involved. The inner fabric of the clothes does not completely isolate the inner fabric from the zipper pull with the zipper cloth, so the actual anti-pinch effect is not ideal.

Also refer to U.S. Patent No. US8225466B2, a kind of invisible zipper. The side parts 37 of its two chain cloths implement a reflexion part, and then the chain teeth are combined on the reflexion part, and then an invisible zipper puller is combined between the two sprocket teeth. But a bottom plate 5 of the zipper head is on the inner surface of the two chain cloths, and the pull tab connecting portion 7 passes through the middle of the two chain cloths to protrude from the fronts of the two chain cloths, and then a pull tab (Tap ) 3 is combined with the pull tab connecting portion 7; therefore, when the user pulls the pull tab 3, the bottom plate 5 positioned on the inner side of the two chain cloths can still be involved in the inner fabric of the clothes, causing the slider to get stuck.

The main purpose of the present invention is to provide an anti-pinch zipper, which through the structural design of the chain cloth and the zipper puller, makes the chain cloth cover the bottom surface of the zipper puller, thereby preventing the zipper puller from being caught inside the garment, and can be used as a closed-end zipper , single-end zipper or double-end zipper and other purposes.

The second object of the present invention is to provide an anti-pinch zipper. In order to respond to the special chain cloth structure of the anti-pinch zipper, a special bottom stop block and a pin are further designed to be combined with the chain cloth, so that the anti-pinch zipper can be used as a single-open end zipper or Two-way zip closure.

In order to achieve the above purpose, the anti-pinch zipper of the present invention has a preferred technical solution comprising two chain straps and a zipper puller, wherein:

The two chain belts have a chain cloth and a chain tooth respectively; A sliding space is formed between the cloths, and the opening side of the sliding space faces the outer side of the chain cloth; the chain teeth are combined with the chain tooth belt on the front side of the chain cloth, so that the chain teeth are located on the front side of the chain cloth , and the reverse side of the chain cloth covers the chain tooth;

The zipper slider has a top plate, a connecting device, a pull piece, a base core and two side plates; the connecting device is arranged outside the top plate, and the front end of the pull piece is combined with the connecting device; the center of the inner surface of the top plate is protruded There is the base core, the bottom end of the base core has a first guide plate, the width of the first guide plate is larger than the width of the base core, and the first guide plate and the first guide plate are formed on both sides of the base core. a first sprocket runner between the top plates;

The two side plates are respectively vertically connected to the two sides of the inner surface of the top plate, and the bottom ends of the two side plates respectively have a second guide plate, and the inner sides of the two second guide plates respectively protrude a convex plate toward the center direction, A second sprocket chute is respectively formed between the convex plate of the two second guide plates and the top plate; Spaced into a Y-shaped guide cloth seam;

The zipper head is combined between the two chain belts, the chain teeth and the chain tooth belt pass through the first chain tooth chute and the second chain tooth chute, and the two chain cloths extend through the Y-shaped guide cloth seam Pull out the zipper pull and expand to both sides of the zipper pull, so that the reverse sides of the two chain straps cover the zipper pull;

The top plate, connecting device and the pull piece are located on the front side of the zipper, the top plate leans against the chain teeth on the front side of the zipper fabric, and the reverse side of the two fastener tapes does not have any parts of the zipper slider; and when the zipper slider moves , the first guide plate guides the sprocket belt through the Y-shaped guide cloth seam with the inner edge of the protruding plate between the inner sides of the sprocket belts of the two chain cloths, and the second guide The tab of the plate slides in the sliding space below the sprocket belt.

In the above-mentioned anti-pinch zipper, the rear end of the first guide plate forms a tapered portion protruding from the rear end of the base core, and the two sides of the tapered portion abut against the inner side of the chain cloth.

In the above-mentioned anti-pinch zipper, a perforation is formed between the connecting device and the top plate, and the front end of the pull tab has a ring portion, and the ring portion is sheathed on the connecting device through the through hole.

In the above-mentioned anti-pinch zipper, the linking device is a locking device, and the locking device includes a stop tip provided in the link device, and an elastic structure is provided at the rear end of the stop tip, and the elastic structure pushes the stop The rear end of the tip; the front end of the stop tip is a hook-shaped tip, which passes through a through hole of the top plate and protrudes to the inner surface of the top plate; and the pull-tab ring is used to pull up the stop tip .

In the above anti-pinch zipper, the sprocket is one of nylon sprocket, plastic steel sprocket or metal sprocket.

In the above-mentioned anti-pinch zipper, the two links are implemented as one of a closed-end zipper, a single-open-end zipper or a double-open-end zipper.

In the above-mentioned anti-pinch zipper, a lower stopper is provided near the end of the sprocket belt of one chain of the single-open end zipper, and a pin is provided near the end of the sprocket belt of the other chain cloth.

The lower stop block has a block, the first side of the center line of the block is provided with a first fixing groove, and the second side of the center line is provided with a slot; the first fixing groove and the slot are formed by the upper end of the block A groove recessed toward the lower end, and the first fixing groove communicates with the slot; the back of the block is provided with an opening, and the opening communicates with the first fixing groove and the slot, and the single-open end zipper or the double-open zipper The sprocket belt of a chain cloth of the tail zipper is refolded and passed through the opening and then fixed in the first fixing groove;

The spigot is a bar-shaped body corresponding to the slot, and the spigot has a second fixing groove recessed from its upper end to its lower end, and the second fixing groove is connected to the inner side of the spigot; the single-open tail The sprocket belt of the zipper or another chain cloth of the double-open end zipper is folded back and fixed in the second fixing groove.

In the above-mentioned anti-pinch zipper, a protruding pin protrudes from the upper end of the first side of the central line of the block, and the first fixing groove is recessed into the block from the upper end of the protruding pin to the lower end.

In the anti-pinch zipper mentioned above, the sprocket belt of one chain cloth of the double-open end zipper is provided with a fixing pin at the near end, and the sprocket belt of the other chain cloth is provided with a pin at the near end.

The anti-pinch zipper of the present invention forms a sliding space between the chain tooth belt and the chain cloth through the chain tooth belt structure formed by the inner side of the chain cloth facing its front and turning back to the outer side; and through a special The structure of the slide fastener head is designed so that the bottom ends of the two side plates have second guide plates respectively, and the inner edges of each second guide plate protrude toward the center direction to form the convex plate, and the inner edges of the two convex plates are aligned with the second guide plate. The two sides of a guide plate are spaced to form a Y-shaped guide cloth seam; thereby, the zipper head can be combined on the front side between the two chain cloths, so that the convex plate can slide between the chain tooth belt and the chain cloth space slide. Therefore, the anti-pinch zipper of the present invention uses the chain cloth to cover the zipper head, and the second guide plate of the zipper head does not have a structure protruding from the back of the chain cloth. When the anti-pinch zipper is applied on clothing, it can prevent The zipper pull clips to the inside of the garment as it moves.

Furthermore, the present invention can not only be applied to the type of one-way closed-end zipper and X-type and O-type two-way closed-end zipper, but also through the special structure of the bottom stop block and spigot or double spigot, the bottom stop block and The pins can be respectively fixed on the near tail end of the reversed sprocket belt, so that the anti-pinch zipper of the present invention can be further applied as a single-open end zipper or a double-open-end zipper (the tail ends can be separated), so that the anti-pinch zipper can further be used Applied on the placket of the jacket coat.

The structural features and other effects and purposes of the present invention are described in detail as follows according to the accompanying drawings:

Referring to the accompanying drawings, an anti-pinch zipper of the present invention, its preferred embodiment includes two chain straps 10 and a zipper puller 20, wherein:

As shown in Figure 1, Figure 2 and Figure 5, the two chain belts 10 respectively have a chain cloth 11 and a chain tooth 12; A chain tooth belt 13 is formed on the side, a sliding space 14 is formed between the chain tooth belt 13 and the chain cloth 11, and the opening 141 side of the sliding space 14 faces the outer side of the chain cloth 11; Teeth 12 can be one of nylon chain teeth (as shown in Figure 1 and Figure 9), plastic steel chain teeth (as shown in Figure 10) or metal chain teeth (as shown in Figure 12), which are made by sewing, injection molding or Stamping and other methods are respectively combined on the chain tooth belt 13 on the front side of the chain cloth 11, so that the chain tooth 12 is located on the front side 111 of the chain cloth 11, and the reverse side 112 of the chain cloth 11 is used to cover the chain tooth 12 with the zipper puller 20;

As shown in Fig. 2, Fig. 3 and Fig. 4, the zipper puller 20 is used to slide between the two chain belts 10, driving the chain teeth 12 of the two chain belts 10 to be connected or separated from each other; the zipper puller 20 has a Top plate 21, a connecting device 22, a pull tab 23, a base core 24 and two side plates 25; the top plate 21 is a shield-shaped piece with a wider front end and a narrower rear end, and the outer surface of the top plate 21 is integrally formed or combined with the connection device 22, the front end of the pull tab 23 is combined with the connecting device 22; the base core 24 is a block protruding from the center of the top plate 21 as a whole, and the end of the base core 24 has a first guide plate 241, the width of the first guide plate 241 is greater than that of the base core 24, and a first sprocket sliding groove 26 between the first guide plate 241 and the top plate 21 is formed on both sides of the base core 24;

The two side plates 25 are respectively vertically connected to the two sides of the inner surface of the top plate 21, and the bottom ends of the two side plates 25 respectively have a second guide plate 27, and the inner edges of the two second guide plates 27 are respectively directed towards the center. A convex plate 271 protrudes in the direction, so that a second sprocket chute 28 is formed between the convex plate 271 of the two second guide plates 27 and the top plate 21; and, the convex plate 271 of the second guide plate 27 The inner edge of the first guide plate 241 and the two sides of the first guide plate 241 are spaced to form a Y-shaped guide cloth seam 29;

Thereby, as shown in Fig. 5, Fig. 6 and Fig. 7, when the zipper puller 20 is combined between the two fastener tapes 10, the sprocket 12 and the sprocket belt 13 of the two fastener tapes 10 pass through the second fastener tape. A sprocket chute 26 and the second sprocket chute 28, the two chain cloths 11 extend out of the bottom of the zipper puller 20 through the Y-shaped guide cloth slit 29, and spread to both sides of the zipper puller 20 , so that the reverse sides of the two chain cloths 11 cover the slider 20 (as shown in FIG. 8 ). Through the above structure and composition structure, the top plate 21, the connecting device 22 and the pull tab 23 are formed on the front side of the slide fastener, so that the top plate 21 leans against the chain teeth 12 on the front side of the chain belt 10, and the opposite sides of the two chain belts 10 There is no construction of any part of the zipper pull 20 .

Referring to Fig. 6 and Fig. 8, when the zipper puller 20 moves, the first guide plate 241 guides together with the inner side of the protruding plate 271 between the inner sides of the chain tooth belts 13 of the two chain cloths 11. Guide the sprocket belt 13 through the Y-shaped guide cloth slit 29 , and make the convex plate 271 of the second guide plate 27 slide in the sliding space 14 below the sprocket belt 13 . As shown in Fig. 2, Fig. 4 and Fig. 8, the rear end of the above-mentioned first guide plate 241 forms a tapered part 242 protruding from the rear end of the base core 24, and the two sides of the tapered part 242 are used for It is guided against the inside edge of the chain cloth 11 .

Referring again to Fig. 1 and shown in Fig. 2, the connecting device 22 of the top plate 21 of the above-mentioned zipper slider 20 can implement various functional structures, for example, the connecting device 22 can be integrally formed with the top plate 21, or the connecting device 22 can be assembled on On the top board 21, a perforation 221 is formed between the connection device 22 and the top board 21, and a ring portion 231 is implemented on the front end of the pull tab 23, so that the ring portion 231 is sleeved on the connection device through the perforation 221 22 for pulling the slider 20 of the zipper.

The above-mentioned connecting device 22 can also implement other functional structures, for example, a locking device 50 can be implemented, and the locking device 50 can be any structure that can be used to prevent the slider 20 from sliding, such as a known automatic locking device. device (as shown in Figure 3 to Figure 6), shrapnel type locking device (as shown in Figure 19 and Figure 20) or European locking device (as shown in Figure 21 and Figure 22), etc., the locking device 50 For preventing the slider 20 from sliding, the slider 20 can slide only when the locking device 50 is opened by the pull piece 23 .

Referring to Fig. 3 to Fig. 6 and shown in Fig. 19 to Fig. 22 again, above-mentioned various lock devices 50 are all provided with a movable stop pin 51 at this connection device 22 specifically, the shape of this stop pin 51 Not limited, the front end of the stop pin 51 is a hook-shaped tip 511; The elastic structure 52 is used to push the stop pin 51, so that the tip 511 of the front end of the stop pin 51 passes through a through hole 211 of the top plate 21, and the tip 511 protrudes to the inner surface of the top plate 21 , used to be stuck on the two chain teeth 12 of the chain, to prevent the zipper slider 20 from sliding down and pulling apart; only when the user uses the pull piece 23 to pull up the stop tip 51, can the tip 511 be separated from the two chain teeth 12. Make the zipper slider 20 slide to open the zipper.

The anti-pinch zipper of the present invention uses the chain cloth 11 to cover the second guide plate 27 of the zipper puller 20, so that the zipper puller 20 will not have a structure protruding from the back of the chain cloth 11. When the anti-pinch zipper is applied in When the clothes are on, the zipper puller 20 is on the outside of the clothes, and there is no part of the zipper puller 20 on the reverse side of the two chain belts 10, which can prevent the zipper puller 20 from being clamped to the inner cloth of the clothing when it moves, and indeed achieve the function of anti-clamping.

Specifically, the present invention can be implemented into a variety of styles of slide fasteners. As shown in Figure 9, it can be implemented as a one-way closed-end slide fastener with a slider 20; Closed-end zipper; or as shown in Figure 11, can be implemented as two O-shaped two-way closed-end zippers of zipper pullers 20, closed-end zippers mean that the two ends of the two links 10 can never be pulled apart from the zipper pullers 20 zipper. Or as shown in Figure 12, the present invention can also be implemented into a single open-end zipper, that is, the lower end of one of the two chain straps 10 can be pulled apart from the zipper through the zipper puller 20, which is usually used for the two skirts of the coat; or as shown in FIG. As shown in 13, it can be implemented as a double open-end slide fastener, that is, a detachable slide fastener at the upper and lower ends of the two chain straps 10.

Since the chain cloth 11 of the present invention is implemented with a reflexed sprocket belt 13, and the sprocket 12 is combined on the sprocket belt 13, when it is implemented as a single-end zipper or a double-end zipper, its required bottom stop Blocks and pins must be improved together. For this reason, referring to Fig. 12 and Fig. 14 to Fig. 18, the near end of the sprocket belt 13 of one of the chain cloth 11 of the present invention is provided with a lower stop block 30, and the near end of the sprocket belt 13 of the other chain cloth 11 is provided with a The pin 40, the lower stop block 30 and the pin 40 can be alloy die-casting or plastic injection molding, wherein:

The lower stop block 30 has a block 31, the first side of the center line 311 of the block 31 is provided with a first fixing groove 32, and the second side of the center line 311 is provided with a slot 33; the first fixing groove 32 and the The slots 33 are recessed grooves from the upper end of the block 31 to the lower end, and the first fixing groove 32 communicates with the slot 33; the back side of the block 31 is provided with an opening 34, and the opening 34 communicates with the first The fixing groove 32 and the slot 33; thereby, the sprocket belt 13 of a chain cloth 11 is refolded and passed through the opening 34, and then is fixed in the first fixing groove 32, so that the bottom stop block 30 is fixed At the proximal end of the sprocket belt 13 of the chain cloth 11; wherein, a protruding pin 35 protrudes from the upper end of the first side of the center line 311 of the square 31, and the first fixing groove 32 is recessed from the upper end of the protruding pin 35 to the lower end. In the box 31.

The spigot 40 is a strip corresponding to the slot 33, and the spigot 40 has a second fixing groove 41 recessed from its upper end to its lower end, and the second fixing groove 41 communicates with the inner side of the spigot 40. edge 42; thereby, the sprocket belt 13 of the above-mentioned other chain cloth 11 is refolded and fixed in the second fixing groove 41, so that the pin 40 can be inserted into the lower stop block 30 and can also be disengaged in the opposite direction. The anti-pinch zipper can be applied as a single or double end zipper.

Referring again to Fig. 13, when the present invention is applied to a double-open-end slide fastener, a fastening pin 60 is provided at the near end of a sprocket belt of the double-open-end slide fastener, and a pin 60 is provided at the near end of the sprocket belt of the other chain cloth. 40, and then form a double spigot open-end zipper, the spigot 40 and the fixed tip 60 are fixed to the structure of the sprocket belt 13, as mentioned above and shown in the structure on the right side of Figure 18.

To sum up, the anti-pinch zipper of the present invention is indeed practical and creative, and the application of its technical means is undoubtedly novel, and the effect and design purpose are indeed consistent, and it has been said to be a reasonable progress. For this reason, I filed an invention patent application in accordance with the law, but I sincerely hope that the Jun Bureau will give you a detailed review and pray for the grant of the patent. I am very grateful.

10: chain belt 11: chain cloth 111: front 112: reverse side 12: sprocket 13: sprocket belt 14:Sliding space 141: opening 20: Zipper head 21: top plate 211: through hole 22: Connecting device 221: perforation 23:Pull piece 231: ring department 24: base core 241: The first guide plate 242: Tapered part 25: side panel 26: The first sprocket chute 27: Second guide plate 271: convex plate 28: Second sprocket chute 29: Y-shaped guide cloth seam 30: Bottom stop block 31: cube 311: Centerline 32: The first fixing groove 33: slot 34: opening 35: Convex tip 40: pin 41: The second fixing groove 42: inner edge 50: Locking device 51: stop tip 511: tip 52:Elastic structure 60: fixed tip

[FIG. 1] It is a three-dimensional schematic diagram of an assembled state of a preferred embodiment of the anti-pinch zipper of the present invention. [FIG. 2] It is a three-dimensional schematic diagram of the disassembled state of a preferred embodiment of the anti-pinch zipper of the present invention. [Fig. 3] is a schematic cross-sectional view of a preferred embodiment of the slider of the present invention. [Fig. 4] is a bottom view diagram of a preferred embodiment of the slider of the present invention. [FIG. 5] I-I sectional schematic diagram of the zipper puller of the present invention combined with two chain cloths. [Fig. 6] It is a schematic diagram of the II-II cross-section of the zipper slider of the present invention combined with two chain cloths. [FIG. 7] It is a schematic diagram of III-III section of the zipper puller of the present invention combined with two chain cloths. [Fig. 8] It is a schematic diagram of the reverse side of the zipper puller of the present invention combined with two chain cloths. [ Fig. 9 ] is a schematic diagram of a one-way closed-end zipper using the anti-pinch zipper of the present invention as a zipper puller. [ Fig. 10 ] is a schematic diagram of an X-shaped two-way closed-end zipper using two zipper pullers for the anti-pinch zipper of the present invention. [ Fig. 11 ] is a schematic diagram of an O-shaped two-way closed-end zipper applied to the anti-pinch zipper of the present invention as two zipper pullers. [ Fig. 12 ] is a schematic diagram of a single-end zipper with the anti-pinch zipper of the present invention applied as a zipper puller. [ Fig. 13 ] is a schematic diagram of the anti-pinch zipper of the present invention applied as a double-open end zipper with two zipper pullers and two pins. [Fig. 14] is a three-dimensional schematic diagram of the combination state of the bottom stop block and the pin of the present invention. [ Fig. 15 ] is a three-dimensional schematic view of the separation state of the bottom stop block and the pin of the present invention. [ Fig. 16 ] is a front perspective schematic diagram of a preferred embodiment of the bottom stop block and the insertion pin of the present invention. [FIG. 17] It is a perspective view of the reverse side of the preferred embodiment of the lower stop block and the insertion pin of the present invention. [ Fig. 18 ] is a schematic cross-sectional view of the combined state of the bottom stop block and the pin of the present invention. [Fig. 19] is a three-dimensional schematic view of the spring-type locking device of the present invention. [Fig. 20] is a schematic cross-sectional view of the shrapnel type locking device of the present invention. [Fig. 21] is a three-dimensional schematic view of the European-style locking device of the present invention. [ Fig. 22 ] is a schematic cross-sectional view of the European-style locking device of the present invention.

10: chain belt

11: chain cloth

111: front

112: reverse side

12: sprocket

13: sprocket belt

14:Sliding space

141: opening

20: Zipper head

21: top plate

22: Connecting device

23:Pull piece

24: base core

241: The first guide plate

242: Tapered part

25: side panel

26: The first sprocket chute

27: Second guide plate

271: convex plate

28: Second sprocket chute

29: Y-shaped guide cloth seam

Claims (10)

An anti-pinch zipper comprising two straps and a zipper pull wherein: The two chain belts have a chain cloth and a chain tooth respectively; A sliding space is formed between the cloths, and the opening side of the sliding space faces the outer side of the chain cloth; the chain teeth are combined with the chain tooth belt on the front side of the chain cloth, so that the chain teeth are located on the front side of the chain cloth , and the reverse side of the chain cloth covers the chain tooth; The zipper slider has a top plate, a connecting device, a pull piece, a base core and two side plates; the connecting device is arranged outside the top plate, and the front end of the pull piece is combined with the connecting device; the center of the inner surface of the top plate is protruded There is the base core, the bottom end of the base core has a first guide plate, the width of the first guide plate is larger than the width of the base core, and the first guide plate and the first guide plate are formed on both sides of the base core. a first sprocket runner between the top plates; The two side plates are respectively vertically connected to the two sides of the inner surface of the top plate, and the bottom ends of the two side plates respectively have a second guide plate, and the inner sides of the two second guide plates respectively protrude a convex plate toward the center direction, A second sprocket chute is respectively formed between the convex plate of the two second guide plates and the top plate; Spaced into a Y-shaped guide cloth seam; The zipper head is combined between the two chain belts, the chain teeth and the chain tooth belt pass through the first chain tooth chute and the second chain tooth chute, and the two chain cloths extend through the Y-shaped guide cloth seam Pull out the zipper pull and expand to both sides of the zipper pull, so that the reverse sides of the two chain straps cover the zipper pull; and When the slide fastener head moves, the first guide plate guides the chain tooth belt through the Y-shaped guide cloth seam with the inner edge of the protruding plate between the inner sides of the chain tooth belts of the two chain cloths, and The convex plate of the second guide plate slides in the sliding space below the sprocket belt. The anti-pinch zipper according to claim 1, wherein the rear end of the first guide plate forms a tapered portion protruding from the rear end of the base core, and the two sides of the tapered portion abut against the inside of the chain cloth side. The anti-pinch zipper according to claim 1, wherein a perforation is formed between the connecting device and the top plate, and the front end of the pull tab has a ring, and the ring is sleeved on the connecting device through the through hole. The anti-pinch zipper as described in claim 3, wherein the connecting device is provided with a locking device, the locking device is used to prevent the slider from sliding, and the pull tab is used to pull the locking device to allow the slider to slide . The anti-pinch zipper as described in claim 4, wherein the locking device includes a stop tip in the connecting device, the front end of the stop tip is a hook-shaped tip, and the rear end of the stop tip is provided with an elastic structure, the elastic structure pushes the stop tip so that the tip passes through a through hole of the top plate and protrudes to the inner surface of the top plate; and the pull-tab ring is used to pull up the stop tip. The anti-pinch zipper according to claim 1, wherein the sprocket is one of nylon sprocket, plastic steel sprocket or metal sprocket. The anti-pinch zipper according to claim 1, wherein the two chain straps are implemented as one of a one-way or two-way closed-end zipper, a single-open end zipper or a double-open end zipper. The anti-pinch zipper as described in claim item 7, wherein the chain tooth belt of the single-end zipper and the double-open-end zipper is provided with a stop block near the end of a chain tooth belt, and the chain tooth belt of the other chain cloth is provided with a near end Plugs, of which: The lower stop block has a block, the first side of the center line of the block is provided with a first fixing groove, and the second side of the center line is provided with a slot; the first fixing groove and the slot are formed by the upper end of the block A groove recessed toward the lower end, and the first fixing groove communicates with the slot; the back of the block is provided with an opening, the opening communicates with the first fixing groove and the slot, the single-open end zipper or the double-open The sprocket belt of a chain cloth of the tail zipper is refolded and passed through the opening and then fixed in the first fixing groove; The spigot is a strip corresponding to the slot, and the spigot has a second fixing groove recessed from its upper end to its lower end, and the second fixing groove is connected to the inner side of the spigot; the single-open tail The sprocket belt of the zipper or another chain cloth of the double-open end zipper is folded back and fixed in the second fixing groove. The anti-pinch zipper according to claim 8, wherein a protruding pin protrudes from the upper end of the first side of the central line of the block, and the first fixing groove is recessed into the block from the upper end to the lower end of the protruding pin. The anti-pinch zipper as described in claim 7, wherein the near end of the sprocket belt of one chain of the double-open end zipper is provided with a fixing pin, and the near end of the other chain is provided with a pin.

Images