CN216875279U

CN216875279U - Anti-pinch zipper

Info

Publication number: CN216875279U
Application number: CN202123092055.4U
Authority: CN
Inventors: 钟俊彦
Original assignee: KCC Zipper Co Ltd
Current assignee: KCC Zipper Co Ltd
Priority date: 2021-11-09
Filing date: 2021-12-10
Publication date: 2022-07-05
Anticipated expiration: 2031-12-10
Also published as: TW202318988A; CN114343295A; TWI784787B

Abstract

The utility model discloses an anti-pinch zipper, which comprises two chain belts and a zipper head, wherein the inner side edge of the zipper cloth of each chain belt is reversely folded towards the front side to form a chain tooth belt and a sliding space, and the chain teeth are arranged on the chain tooth belt; the zipper head is provided with a top plate, and a pulling piece and a connecting device are arranged outside the top plate; a base core is arranged at the center of the inner surface of the top plate, side plates are arranged on two side edges of the inner surface of the top plate, a second guide plate is arranged at the bottom end of each side plate, the inner edge of each second guide plate protrudes towards the center direction to form a convex plate, and Y-shaped guide cloth gaps are formed between the inner edges of the convex plates and the base core; therefore, the zipper teeth and the zipper tooth belts of the two zipper belts penetrate through the zipper head, the top plate, the connecting device and the zipper pull piece of the zipper head are positioned on the front side of the zipper, the two zipper cloths extend out and unfold through the Y-shaped guide cloth seam to cover the back side of the zipper head, and when the zipper head moves, the second guide plate slides in the sliding space below the zipper tooth belts, so that the anti-pinch purpose is achieved.

Description

Anti-pinch zipper

Technical Field

The utility model relates to the technical field of zippers, in particular to an anti-pinch zipper capable of preventing a zipper head from pinching inner cloth of clothes.

Background

The zipper commonly used on the existing clothes can be used in the pockets of clothes, openings of trousers/skirts or two front pieces of coats and the like, and when the zipper puller moves, the zipper can be clamped on the cloth in the inner side to cause the movement of the zipper puller to be unsmooth as long as the zipper is provided with the inner side; if the cloth is seriously rolled into the inner cloth, the whole zipper head is blocked and can not move forward or backward completely, and the clothes and the zipper can recover the original functions by destructive repair.

In order to prevent the zipper head from being caught in the inner cloth of the garment, WO2014033926a1 and US6701584B2 propose a technique of adding a guide member to the front end of the zipper head, so that the angle at which the chains separated at both sides are guided into the zipper head is reduced by the guide member, thereby preventing the inner cloth from being caught in the zipper head along with the chains as much as possible. However, the addition of a lead-in member increases the volume of the zipper head, which deteriorates the overall aesthetic appearance of the garment, and the lead-in member is required to be matched with the shape and size of the original zipper head, so that the zipper head is not generally applied to the garment.

Other known anti-pinch slider technologies, such as EP3289908a1, japanese patent publications JP2004024740A, JP5715576B2, and chinese patent publications CN107567291A, CN106333432A, CN104106888A, and CN211298642U, are not ideal in practice because they are designed to prevent the slider from being caught in the inner cloth of the garment by merely pushing the inner cloth away by the slider, and the inner cloth is not completely separated from the slider by the slider.

In addition, referring to U.S. patent publication No. US8225466B2, there is disclosed a concealed slide fastener in which a side edge portion 37 of two fastener tapes is formed with a reverse folded portion, and then a coupling element is coupled to the reverse folded portion, and then a concealed slider is coupled between the two fastener tapes, but a bottom plate 5 of the slider is on the inner side of the two fastener tapes, a tab attaching portion 7 passes through the middle of the two fastener tapes to protrude from the front sides of the two fastener tapes, and a tab (Tap)3 is coupled to the tab attaching portion 7; therefore, when the user pulls the pull tab 3, the bottom plate 5 on the inner side of the two pieces of zipper cloth can be rolled into the lining cloth of the clothes, so that the zipper head is clamped.

SUMMERY OF THE UTILITY MODEL

The utility model mainly aims to provide an anti-pinch zipper, which enables zipper cloth to cover the bottom surface of a zipper head through the structural design of the zipper cloth and the zipper head, so as to achieve the purposes of preventing the zipper head from being clamped into a garment, and being applied to a closed-tail zipper, a single-open-tail zipper or a double-open-tail zipper and the like.

Another objective of the present invention is to provide an anti-pinch zipper, which is designed to further incorporate a special lower stop block and a special pin into the zipper fabric in response to the special zipper fabric structure of the anti-pinch zipper, so that the anti-pinch zipper can be used as a single-open-tailed zipper or a double-open-tailed zipper.

In order to achieve the above object, the preferred technical solution of the anti-pinch zipper of the present invention comprises two zipper tapes and a zipper head, wherein:

the two chain belts are respectively provided with a chain cloth and a chain tooth; the inner side edge of each chain cloth is reversely folded towards the front side of the chain cloth to the outer side edge to form a chain tooth belt, a sliding space is formed between the chain tooth belt and the chain cloth, and the opening side of the sliding space faces towards the outer side edge of the chain cloth; the zipper teeth are combined on the zipper teeth belt on the front side of the zipper cloth, so that the zipper teeth are positioned on the front side of the zipper cloth, and the zipper teeth are shielded by the back side of the zipper cloth;

the zipper head is provided with a top plate, a connecting device, a pulling piece, a base core and two side plates; the connecting device is arranged outside the top plate, and the front end of the pulling piece is combined with the connecting device; the base core is convexly arranged at the center of the inner surface of the top plate, the bottom end part of the base core is provided with a first guide plate, the width of the first guide plate is greater than that of the base core, and a first sprocket sliding groove positioned between the first guide plate and the top plate is formed at two sides of the base core;

the two side plates are respectively and vertically connected with two side edges of the inner surface of the top plate, the bottom ends of the two side plates are respectively provided with a second guide plate, the inner edges of the two second guide plates respectively protrude a convex plate towards the central direction, and a second sprocket sliding groove is respectively formed between the convex plates of the two second guide plates and the top plate; the inner edge of the convex plate of the second guide plate and the two side edges of the first guide plate are separated to form a Y-shaped guide cloth gap;

the zipper head is combined between the two chain belts, the zipper teeth and the zipper tooth belts pass through the first zipper tooth sliding groove and the second zipper tooth sliding groove, the two pieces of zipper cloth extend out of the zipper head through the Y-shaped guide cloth seam and are unfolded to two sides of the zipper head, so that the reverse sides of the two chain belts cover the zipper head;

the top plate, the connecting device and the pull piece are positioned on the front side of the zipper, the top plate leans against the zipper teeth on the front side of the zipper cloth of the zipper, and the reverse sides of the two zipper belts are not provided with any part of the zipper head; when the zipper head moves, the first guide plate is arranged between the inner sides of the zipper tooth belts of the two zipper cloths and guides the zipper tooth belts to pass through the Y-shaped guide cloth seam with the inner sides of the convex plates, and the convex plates of the second guide plate slide in the sliding space below the zipper tooth belts.

In the anti-pinch zipper, the rear end of the first guide plate forms a pointed cone part protruding out of the rear end of the base core, and two side edges of the pointed cone part abut against the inner side edge of the zipper cloth.

In the anti-pinch zipper, a through hole is formed between the connecting device and the top plate, the front end of the pulling piece is provided with a ring part, and the ring part penetrates through the through hole and is sleeved on the connecting device.

In the anti-pinch zipper, the connecting device is provided with a locking device, the locking device comprises a stop pin arranged in the connecting device, the rear end of the stop pin is provided with an elastic structure, and the elastic structure pushes the rear end of the stop pin; the front end of the stop pin 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 part is used for pulling up the stop pin.

In the anti-pinch zipper, the zipper teeth are one of nylon zipper teeth, plastic steel zipper teeth or metal zipper teeth.

In the anti-pinch zipper, the two chain belts are implemented as one of a closed-tail zipper, a single-open-tail zipper or a double-open-tail zipper.

In the anti-pinch zipper, a lower stop block is arranged at the end close to the zipper tooth belt of one piece of zipper cloth of the single-open-tail zipper, and an inserting pin is arranged at the end close to the zipper tooth belt of the other piece of zipper cloth.

The lower stop block is provided with a square block, a first fixing groove is arranged on the first side of the center line of the square block, and a slot is arranged on the second side of the center line; the first fixing groove and the slot are both grooves which are recessed from the upper end to the lower end of the square block, and the first fixing groove is communicated with the slot; the back of the square block is provided with an opening which is communicated with the first fixing groove and the slot, and the zipper tooth belt of the single-open-tail zipper or the double-open-tail zipper is reversely folded and then passes through the opening to be fixed in the first fixing groove;

the inserted pin is a strip-shaped body corresponding to the slot, the inserted pin is provided with a second fixing groove which is recessed from the upper end to the lower end of the inserted pin, and the second fixing groove is communicated with the inner side edge of the inserted pin; the zipper tooth belt of the other piece of zipper cloth of the single-open-tail zipper or the double-open-tail zipper is fixed in the second fixing groove after being reversely folded.

In the anti-pinch zipper, the upper end of the first side of the center line of the square block protrudes with a convex pin, and the first fixing groove is recessed into the square block from the upper end to the lower end of the convex pin.

In the anti-pinch zipper, a fixing pin is arranged at the near tail end of the zipper tooth belt of one piece of zipper cloth of the double-open-tail zipper, and an inserting pin is arranged at the near tail end of the zipper tooth belt of the other piece of zipper cloth.

The anti-pinch zipper of the utility model forms a sliding space between the zipper teeth belt and the zipper cloth through the zipper teeth belt structure formed by reversely folding the inner side edge of the zipper cloth towards the front side and the outer side edge of the zipper cloth; through the special structural design of the zipper head, the bottom ends of two side plates of the zipper head are respectively provided with a second guide plate, the inner edges of the second guide plates respectively protrude towards the central direction to form the convex plates, and the inner edges of the two convex plates and the two side edges of the first guide plate are separated to form Y-shaped guide cloth gaps; therefore, the zipper head can be combined on the front surface between the two pieces of zipper cloth, so that the convex plate slides in the sliding space between the zipper tooth belt and the zipper cloth. Therefore, the anti-pinch zipper utilizes the zipper cloth to shield the zipper head, the second guide plate of the zipper head does not have a structure protruding out of the back surface of the zipper cloth, and when the anti-pinch zipper is applied to clothes, the zipper head can be prevented from being clamped into the inner side of the clothes when moving.

Furthermore, the utility model can not only be applied to the type of a one-way closed tail zipper and an X-type and O-type two-way closed tail zipper, but also can respectively fix the lower stop block and the inserted pin at the near tail end of the reversely folded zipper tooth belt through the special structure of the lower stop block and the inserted pin or the double inserted pins, thereby further applying the anti-pinch zipper of the utility model to a single-open tail zipper or a double-open tail zipper (the tail end can be separated), and further applying the anti-pinch zipper to the front fly of jacket.

Drawings

FIG. 1 is a perspective view of the anti-pinch zipper in an assembled state according to a preferred embodiment of the present invention;

FIG. 2 is an exploded perspective view of the preferred embodiment of the anti-pinch zipper of the present invention;

FIG. 3 is a cross-sectional view of a preferred embodiment of the slider of the present invention;

FIG. 4 is a bottom view of the preferred embodiment of the slider of the present invention;

FIG. 5 is a schematic cross-sectional view taken along line I-I of the zipper head of the present invention attached to two zipper tapes;

FIG. 6 is a schematic sectional view of the zipper head of the present invention being combined with two zipper tapes II-II;

FIG. 7 is a schematic sectional view III-III of the slider of the present invention attached to two fastener tapes;

FIG. 8 is a schematic view of the zipper head of the present invention attached to the reverse side of two zipper tapes;

FIG. 9 is a schematic view of a one-way closed end zipper with an anti-pinch zipper applied as a slider according to the present invention;

FIG. 10 is a schematic view of an X-shaped two-way closed-end zipper with two zipper heads for preventing pinching;

FIG. 11 is a schematic view of an O-shaped two-way closed end zipper with two zipper heads for preventing the pinch-off of the present invention;

FIG. 12 is a schematic view of a single end zipper with the anti-pinch zipper applied as a slider in accordance with the present invention;

FIG. 13 is a schematic view of the anti-pinch zipper of the present invention applied as a double-split-tail zipper with two zipper heads and two pins;

FIG. 14 is a perspective view of the assembled state of the lower stop block and the pin of the present invention;

FIG. 15 is a perspective view of the lower stop block and the pin of the present invention in a separated state;

FIG. 16 is a front perspective view of the preferred embodiment of the lower stop and pin of the present invention;

FIG. 17 is a schematic reverse perspective view of a preferred embodiment of the lower stop and pin of the present invention;

FIG. 18 is a cross-sectional view of the assembled state of the lower stop and the pin according to the present invention;

FIG. 19 is a perspective view of the latch-type locking device of the present invention;

FIG. 20 is a schematic cross-sectional view of the snap-lock device of the present invention;

FIG. 21 is a perspective view of the European locking apparatus of the present invention;

FIG. 22 is a schematic cross-sectional view of the European locking apparatus of the present invention.

The names of the components marked in the figures are as follows: 10: a chain belt, 11: a chain cloth, 111: a front side, 112: a back side, 12: a chain tooth, 13: a chain belt, 14: a sliding space, 141: an opening, 20: a zipper head, 21: a top plate, 211: a through hole, 22: a connecting device, 221: a through hole, 23: a pull sheet, 231: a ring part, 24: a base core, 241: a first guide plate, 242: a pointed cone part, 25: a side plate, 26: a first chain tooth chute, 27: a second guide plate, 271: a convex plate, 28: a second chain tooth chute, 29: a Y-shaped guide cloth seam, 30: a lower stop block, 31: a block, 311: a center line, 32: a first fixing groove, 33: a slot, 34: an opening, 35: a convex tip, 40: a pin, 41: a second fixing groove, 42: an inner side edge, 50: a locking device, 51: a stop tip, 511: a tip, 52: an elastic structure, and 60: a fixing tip.

Detailed Description

In order to more clearly explain the overall concept of the present invention, the following detailed description is given by way of example in conjunction with the accompanying drawings.

It should be noted that in the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and thus the scope of the present invention is not limited by the specific embodiments disclosed below.

In addition, in the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc., indicate orientations and positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; either directly or indirectly through intervening media, either internally or in any other relationship. However, the direct connection means that the two bodies are not connected to each other by the intermediate structure but connected to each other by the connecting structure to form a whole. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model.

In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Referring to the drawings, a preferred embodiment of the anti-pinch zipper of the present invention comprises two zipper tapes 10 and a zipper head 20, wherein:

as shown in fig. 1, 2 and 5, the two chain belts 10 respectively have a chain cloth 11 and a chain tooth 12; the inner side edge of the chain cloth 11 is folded back to the outer side edge towards the front surface 111 of the chain cloth 11 to form a sprocket belt 13, a sliding space 14 is formed between the sprocket belt 13 and the chain cloth 11, and the opening 141 side of the sliding space 14 faces the outer side edge of the chain cloth 11; the zipper teeth 12 may be one of nylon zipper teeth (as shown in fig. 1 and 9), plastic-steel zipper teeth (as shown in fig. 10) or metal zipper teeth (as shown in fig. 12), which are respectively combined on the zipper tape 13 on the front surface of the zipper cloth 11 by sewing, injection molding or impact molding, so that the zipper teeth 12 are located on the front surface 111 of the zipper cloth 11, and the back surface 112 of the zipper cloth 11 is used for shielding the zipper teeth 12 and the zipper head 20;

as shown in fig. 2, 3 and 4, the slider 20 is used to slide between the two fastener tapes 10 to drive the teeth 12 of the two fastener tapes 10 to be coupled with or separated from each other; the zipper head 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 sheet body with a wider front end and a narrower rear end, the connecting device 22 is integrally formed or combined outside the top plate 21, and the front end of the pull piece 23 is combined with the connecting device 22; the base core 24 is a block integrally protruded from the center of the inner surface of the top plate 21, the end of the base core 24 has a first guiding plate 241, the width of the first guiding plate 241 is larger than that of the base core 24, and a first sprocket sliding groove 26 located between the first guiding plate 241 and the top plate 21 is formed at both sides of the base core 24;

the two side plates 25 are respectively and vertically connected to two side edges of the inner surface of the top plate 21, the bottom ends of the two side plates 25 are respectively provided with a second guide plate 27, the inner edges of the two second guide plates 27 respectively protrude a convex plate 271 towards the central direction, so that a second sprocket sliding slot 28 is respectively formed between the convex plate 271 of the two second guide plates 27 and the top plate 21; moreover, the inner edge of the convex plate 271 of the second guide plate 27 and the two side edges of the first guide plate 241 are separated to form a Y-shaped guide cloth gap 29;

thus, as shown in fig. 5, 6 and 7, when the zipper head 20 is coupled between the two zipper tapes 10, the teeth 12 and the teeth 13 of the two zipper tapes 10 pass through the first and

second tooth chutes

26 and 28, and the two sheets of zipper cloth 11 extend out of the bottom of the zipper head 20 through the Y-shaped cloth guide slit 29 and are spread to both sides of the zipper head 20, so that the reverse surfaces of the two sheets of zipper cloth 11 cover the zipper head 20 (as shown in fig. 8). With the above structure and composition structure, the top plate 21, the connecting device 22 and the pull tab 23 are located on the front surface of the zipper, so that the top plate 21 is abutted against the teeth 12 on the front surface of the zipper tape 10, and the back surfaces of the two zipper tapes 10 are free of any components of the zipper head 20.

Referring to fig. 6 and 8, when the slider 20 moves, the first guide plate 241 guides the sprocket belt 13 through the Y-shaped guide slit 29 between the inner edges of the sprocket belts 13 of the two sheets 10 together with the inner edges of the protruding plates 271, and the protruding plates 271 of the second guide plate 27 slide in the sliding spaces 14 below the sprocket belts 13. As shown in fig. 2, 4 and 8, the rear end of the first guiding plate 241 forms a pointed cone 242 protruding from the rear end of the base core 24, and two side edges of the pointed cone 242 are used to abut against the inner side edge of the chain cloth 11 for guiding.

Referring to fig. 1 and 2, the connecting device 22 of the top plate 21 of the zipper head 20 may be implemented with various functional structures, for example, the connecting device 22 may be integrally formed with the top plate 21, or the connecting device 22 is assembled on the top plate 21, such that a through hole 221 is formed between the connecting device 22 and the top plate 21, and a ring portion 231 is implemented at the front end of the pull tab 23, such that the ring portion 231 is sleeved on the connecting device 22 through the through hole 221 to pull the zipper head 20.

The connecting device 22 may also be implemented with other functional structures, such as a locking device 50, the locking device 50 may be any structure capable of preventing the slider 20 from sliding, such as a conventional automatic locking device (as shown in fig. 3 to 6), a flip-chip locking device (as shown in fig. 19 and 20), or an euro-type locking device (as shown in fig. 21 and 22), and the locking device 50 is used to prevent the slider 20 from sliding, and the slider 20 can only be slid when the locking device 50 is pulled by the pull tab 23.

Referring to fig. 3 to 6 and 19 to 22, each of the locking devices 50 is specifically provided with a movable stop pin 51 on the connecting device 22, the shape of the stop pin 51 is not limited, and the front end of the stop pin 51 is a hook-shaped tip 511; the rear end of the stop pin 51 is provided with an elastic structure 52, the elastic structure 52 can be a spring or a spring sheet formed by the rear end of the stop pin 51, the elastic structure 52 is used for pushing 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 to be clamped on two chain teeth 12 which are in chain connection, and the zipper head 20 is prevented from sliding downwards and pulling; only when the user pulls up the stopper pin 51 with the pull tab 23, the tip 511 is disengaged from the two elements 12, so that the slider 20 can slide to open the slide fastener.

The anti-pinch zipper of the present invention uses the zipper cloth 11 to shield the second guiding plate 27 of the zipper head 20, so that the zipper head 20 does not have a structure protruding out of the back surface of the zipper cloth 11, when the anti-pinch zipper is applied to a garment, the zipper head 20 is outside the garment, and no part of the zipper head 20 is arranged on the back surface of the two zipper tapes 10, so as to prevent the zipper head 20 from being pinched to the inner cloth of the garment when moving, and to achieve the anti-pinch function.

The present invention can be embodied as various types of slide fasteners, and as shown in fig. 9, can be embodied as a one-way closed end slide fastener of a slider 20; as shown in fig. 10, an X-type two-way closed end zipper with two sliders 20 may be implemented; or, as shown in fig. 11, an O-type two-way closed end zipper having two sliders 20 may be implemented, and the closed end zipper is a zipper in which both ends of the two fastener tapes 10 are never separated from the sliders 20. Or as shown in fig. 12, the present invention can also be implemented as a single-split zipper, i.e. the lower end of one of the two fastener tapes 10 can be separated by the zipper head 20, which is usually used for two flaps of a jacket; or, as shown in fig. 13, it may be implemented as a double-split zipper, that is, a zipper in which both ends of the upper and lower ends of the two fastener tapes 10 are separable.

Since the fastener tape 11 of the present invention is provided with the reversely folded fastener tape 13 and the fastener elements 12 are coupled to the fastener tape 13, a lower stop and a pin required for the fastener tape 11 must be combined together for improvement when the fastener tape is implemented as a single open-end fastener or a double open-end fastener. To this end, referring to fig. 12 and 14 to 18, in the present invention, a lower stop 30 is disposed at a proximal end of the sprocket belt 13 of one of the chain cloths 11, and a pin 40 is disposed at a proximal end of the sprocket belt 13 of the other chain cloth 11, wherein the lower stop 30 and the pin 40 can be formed by die casting or plastic injection molding, wherein:

the lower stop 30 has a block 31, a first fixing groove 32 is disposed on a first side of a center line 311 of the block 31, and a slot 33 is disposed on a second side of the center line 311; the first fixing groove 32 and the slot 33 are both concave grooves from the upper end to the lower end of the block 31, and the first fixing groove 32 is communicated with the slot 33; an opening 34 is formed on the back of the block 31, and the opening 34 is connected to the first fixing groove 32 and the slot 33; therefore, the sprocket belt 13 of one piece of chain cloth 11 is folded back, passes through the opening 34 and then is fixed in the first fixing groove 32, so that the lower stop 30 is fixed at the near 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 central line 311 of the block 31, and the first fixing groove 32 is recessed into the block 31 from the upper end to the lower end of the protruding pin 35.

The pin 40 is a strip corresponding to the slot 33, the pin 40 has a second fixing groove 41 recessed from the upper end to the lower end thereof, the second fixing groove 41 is communicated with the inner side 42 of the pin 40; therefore, the zipper tooth belt 13 of the other zipper cloth 11 is reversely folded and then fixed in the second fixing groove 41, so that the inserting pin 40 can be inserted into the lower stop block 30 and can also be reversely separated, and the anti-pinch zipper can be applied to a single-open-tail zipper or a double-open-tail zipper.

Referring to fig. 13, when the present invention is applied to a double open-ended slide fastener, a fastening pin 60 is provided at a proximal end of a fastener tape of one fastener tape of the double open-ended slide fastener, and a pin 40 is provided at a proximal end of a fastener tape of the other fastener tape, thereby forming a double pin open-ended slide fastener, the pin 40 and the fastening pin 60 are fixed to the fastener tape 13, as described above and shown in the right side structure of fig. 18.

In addition to the above preferred embodiments, the technical solutions protected by the present invention are not limited to the above embodiments, and it should be noted that the technical solutions of any one embodiment are combined with the technical solutions of one or more other embodiments within the protection scope of the present invention. Although the utility model has been described in detail above with reference to a general description and specific examples, it will be apparent to one skilled in the art that modifications or improvements may be made thereto based on the utility model. Accordingly, such modifications and improvements are intended to be within the scope of the utility model as claimed.

Claims

1. Prevent pressing from both sides zip fastener, it contains two chain belts to and draw zipper head, its characterized in that:

the top plate, the connecting device and the pull piece are positioned on the front side of the zipper, the top plate leans against the zipper teeth on the front side of the zipper cloth of the zipper, and the reverse sides of the two zipper belts are not provided with any part of the zipper head; and

when the zipper head moves, the first guide plate is arranged between the inner sides of the zipper tooth belts of the two zipper cloths and guides the zipper tooth belts to pass through the Y-shaped guide cloth seam with the inner sides of the convex plates, and the convex plates of the second guide plate slide in the sliding space below the zipper tooth belts.

2. The anti-pinch zipper of claim 1, wherein: wherein the rear end of the first guide plate forms a pointed cone part protruding out of the rear end of the base core, and two side edges of the pointed cone part are abutted against the inner side edge of the chain cloth.

3. The anti-pinch zipper of claim 1, wherein: wherein a through hole is formed between the connecting device and the top plate, the front end of the pull piece is provided with a ring part, and the ring part penetrates through the through hole and is sleeved on the connecting device.

4. The anti-pinch zipper of claim 3, wherein: the connecting device is provided with a locking device, the locking device is used for preventing the zipper head from sliding, and the pull piece is used for pulling the locking device open to enable the zipper head to slide.

5. The anti-pinch zipper of claim 4, wherein: the locking device comprises a connecting device, a locking pin and an elastic structure, wherein the connecting device is internally provided with the locking pin, the front end of the locking pin is a hook-shaped tip, the rear end of the locking pin is provided with the elastic structure, and the elastic structure pushes the locking pin 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 part is used for pulling up the stop pin.

6. The anti-pinch zipper of claim 1, wherein: wherein the zipper teeth are one of nylon zipper teeth, plastic steel zipper teeth or metal zipper teeth.

7. The anti-pinch zipper of claim 1, wherein: wherein the two chain belts are implemented as one of a one-way or two-way closed tail zipper, a single open tail zipper or a double open tail zipper.

8. The anti-pinch zipper of claim 7, wherein: wherein the nearly end in sprocket belt of this singly open tail zip fastener and this two chain cloth of opening the tail zip fastener is equipped with a lower stop block, and the nearly end in sprocket belt of another sprocket belt is equipped with a bolt, wherein:

the lower stop block is provided with a square block, a first fixing groove is arranged on the first side of the center line of the square block, and a slot is arranged on the second side of the center line; the first fixing groove and the slot are both grooves which are recessed from the upper end to the lower end of the square block, and the first fixing groove is communicated with the slot; the back of the square block is provided with an opening which is communicated with the first fixing groove and the slot, and the zipper tooth belt of the single-open-tail zipper or the zipper cloth of the double-open-tail zipper is reversely folded and then passes through the opening to be fixed in the first fixing groove;

9. The anti-pinch zipper of claim 8, wherein: wherein a protruding pin protrudes from the upper end of the first side of the center 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.

10. The anti-pinch zipper of claim 7, wherein: wherein, the near end of the chain tooth belt of one piece of zipper cloth of the double-opening-tail zipper is provided with a fixed pin, and the near end of the chain tooth belt of the other piece of zipper cloth is provided with an inserting pin.