CN220675320U - Zipper lower stop assembly and serial zipper using same - Google Patents

Abstract

The utility model relates to a zipper lower stop assembly and a serial zipper applied by the same, wherein the zipper lower stop assembly comprises a pair of bolts; the bolt comprises at least two sections of block-shaped main bodies, a first tail handle is arranged on the outer side of each block-shaped main body, a connecting neck is arranged between every two adjacent block-shaped main bodies, and the upper surface of each connecting neck is shorter than the upper surface of each block-shaped main body; the serial connection zipper applying the zipper lower stop assembly comprises two rows of zipper teeth and a pull head, wherein the zipper teeth are uniformly connected to the core wire at intervals, a pair of bolts are respectively arranged at the lower end part of each row of zipper teeth at intervals, and the block-shaped main body or the connecting neck part is connected to the core wire; the connecting neck is connected with the fabric through the suture, so that the problem that the edge of the fabric is not fixed but is tilted in the prior art is well solved.

Description

Zipper lower stop assembly and serial zipper using same

Technical Field

The utility model relates to the technical field of zippers, in particular to a zipper lower stop assembly and a serial zipper using the same.

Background

The zipper is one of common accessories such as a clothing bag box and the like, and can be closed or opened through combination or separation of the zipper teeth, if the zipper is classified according to the use mode, the zipper can be divided into a split-tail type zipper, a closed-tail type zipper and the like, and a lower stop component is generally required to be arranged at the tail part of the zipper independently. Taking a common nylon zipper as an example, the traditional lower stop assembly is installed by firstly cutting off part of the zipper teeth on the cloth belt, then pasting back glue on the blank sections of the cut zipper teeth on the cloth belt, and then installing an upper bolt and a square block on the edge pasted with the back glue. However, the zipper firstly needs to rely on a cloth belt with good structural strength and high hardness to provide support for the zipper teeth and the lower stop component, so that the flexibility of the fabric at the edge of the zipper is poor, the installation procedures of the tail stop component are more, and the bolt is difficult to install.

With the advancement of the zipper technology, in order to improve the softness and weight of fabrics, a zipper product with a zipper, which eliminates a cloth tape in a conventional zipper, is disclosed in the patent document of international publication No. WO2018142671, the zipper part is formed by fixing a plurality of zipper teeth and anchor teeth on a string-shaped fixing part, directly sewing the zipper part to a fabric through a seam, and then mounting a latch part to the anchor teeth. However, when the zipper teeth and the anchoring teeth are sewn and processed, the teeth are easy to move or turn over, so that the sewing and processing are very difficult.

For this reason, the structure of a straight slide fastener has been improved, and for example, a fastener element member having a fixing member, fastener elements and a pin portion to which a plurality of fastener elements and pin portions are attached, a chain member and a fastener-attached article are disclosed in chinese patent publication No. CN 113163908B. The fastener element is sewn on the fabric through the stitching, but in order to enable the bolt portion to be bound on the fabric, a fin portion is arranged on one side of the bolt portion, an opening portion is arranged on the fin portion, the stitching penetrates through the opening portion to stitch the fin portion and the fabric, and then the bolt portion and the fabric are connected together. However, the following problems are involved in the fixing method of the plug pin part of the present utility model: 1. the stitch is only connected to the fin part and is not sewn with the pin main body of the bolt part, so that the bolt part and the edge of the fabric are separated, namely the edge of the fabric is tilted, the appearance is quite poor, and the combination of the bolt part and the square block is possibly affected; 2. because the connecting structures of the zipper teeth and the bolt parts are different, two different sewing programs are needed to control when the zipper teeth and the bolt parts are sewn, the processing difficulty is increased, and the processing precision and the processing efficiency are affected.

Disclosure of Invention

In order to overcome at least one of the above problems with the prior art tape-less straight slit type zipper bottom stop structure, the present utility model proposes a zipper bottom stop assembly comprising a pair of pins; the bolt comprises at least two sections of block-shaped main bodies, a first tail handle is arranged on the outer side of each block-shaped main body, a connecting neck is arranged between every two adjacent block-shaped main bodies, and the upper surface of each connecting neck is shorter than the upper surface of each block-shaped main body.

Wherein the pins are members for use with a block as hereinafter described, and a row of teeth is fitted with one of the pins, and in use, the pins are connected in alignment in the block by a pair of the pins so as to align the two rows of teeth.

Wherein the block-shaped body is a body part forming the plug pin, the block-shaped body is of a structure which is arranged at intervals, namely, at least one side outer surface in the radial direction of the block-shaped body is in a sheet-shaped discontinuous arrangement, but the discontinuous structure does not influence the matching of the plug pin and the square block mentioned below, at least part of the block-shaped body is a component matched with a slot on the square block, namely, the radial outer surface of the block-shaped body is a surface matched with the slot wall surface of the slot in the cross section.

The connecting neck is used for connecting two adjacent block-shaped main bodies and is also used for binding the suture; in order to ensure the structural strength of the bolt, the connecting neck and the block-shaped main body are of an integrated structure.

Wherein the upper surface of the connecting neck is shorter than the upper surface of the block-shaped body, so that a concave groove-shaped structure (hereinafter neck wire groove) is formed on the upper surface of the plug pin, and the suture can be stored in the groove-shaped structure when sewing. Further, in addition to the upper surface of the plug pin, the lower surface of the connecting neck may be shorter than the lower surface of the block-shaped body, or the inner side surface of the connecting neck may be shorter than the inner side surface of the block-shaped body, or the plurality of radially arranged surfaces of the connecting neck may be shorter than the corresponding surfaces of the block-shaped body; thus forming a ring-shaped groove structure on the plug pin.

The first tail handle is a fixing structure which extends outwards from the block-shaped main body, and can be lapped on the fabric to increase the connection area of the bolt and the fabric, and meanwhile, the first tail handle can be combined with the fabric through a suture.

According to the technical scheme, compared with the prior art, the utility model has the beneficial technical effects that: 1. the block-shaped main bodies and the connecting neck parts which are arranged in a separated mode are arranged, grooves which can store the stitching lines are formed between the adjacent block-shaped main bodies, so that the connecting neck parts are connected with the fabrics through the stitching lines on the basis that the connecting function of the bolt is not affected, the problem that the edges of the fabrics are not fixed but tilted in the prior art is well solved, and the connecting stability of the bolt and the fabrics is greatly improved; 2. the first tail handle and the connecting neck are arranged, so that the front and rear positions of the bolt can be formed to enable the suture to be bound, and the connection stability of the bolt and the fabric is further improved; 3. the concave groove-shaped structure is formed on the upper surface of the bolt, so that the suture can be stored in the groove-shaped structure, friction between the suture and the square is reduced, and the service life of the product is prolonged.

In order to further reduce the contact and friction between the suture and the square, the further technical scheme may further include that the adjacent block-shaped main bodies and the connecting neck portions between the adjacent block-shaped main bodies form neck wire grooves, a tail handle gap corresponding to the connecting neck portions is reserved between the adjacent two first tail handles, and the upper surface of the connecting neck portions is shorter than the upper surface of the first tail handles, so that the neck wire grooves are communicated with the tail handle gap. The main effect that sets up like this lies in, lets neck wire casing and caudal peduncle clearance can be directly be linked together, and the suture can also not surpass under the state of tensioning the upper surface of cubic main part and first caudal peduncle has protected the suture well, is favorable to improving the life of product.

The further technical scheme may be that the pair of pins comprises a fixed pin and a movable pin, and further comprises a square block, wherein the fixed pin is fixedly connected with the square block to form a tail end square block of the zipper, the square block is provided with a movable slot which is arranged in parallel with the fixed pin, the movable pin can be freely pulled and inserted into the movable slot, and at least part of a first tail handle of the movable pin extends outwards to the outside of the movable slot. The connection mode of the fixed bolt and the square block is flexible, and the connection mode is described below through two common structures.

First, one side of square is provided with square step, be provided with on the fixed bolt with square step assorted bolt step, fixed bolt passes through square step and bolt step overlap joint together, fixed bolt and square rethread ultrasonic welding or glue bonding's mode link together firmly.

Second, still be provided with fixed slot on the square, fixed bolt grafting is fixed in fixed slot, the first tail handle on fixed bolt extends outwards to the outside of fixed slot at least. Further, the block and the fixing bolt are respectively provided with a clamping boss and an inverted buckle, and when the fixing bolt is inserted into the fixing slot, the inverted buckle can be clamped with the clamping boss so that the fixing bolt and the block are stably connected together.

In order to ensure the overall structural strength of the bolt, the further technical scheme may be that the block-shaped main body, the connecting neck and the first tail handle are integrally formed.

Because the lower stop assembly has the advantages, the lower stop assembly can be applied to a serial connection zipper, the serial connection zipper comprises two rows of zipper teeth and a pull head, each row of zipper teeth is connected on a core wire in series, the zipper teeth are uniformly connected on the core wire at intervals, each zipper tooth comprises a tooth main body and a second tail handle connected to the tail part of the tooth main body, the pull head is arranged on the tooth main body in a sliding manner, and the second tail handles extend out from cloth seams at two sides of the pull head; the lower stop assembly is characterized by further comprising a pair of bolts which are respectively arranged at the lower end parts of each row of the teeth at intervals, and the block-shaped main body or the connecting neck part is connected to the core wire.

Further, the distance between the block-shaped main bodies on the plug pin is basically equal to the distance between the teeth, and the distance between the first tail handles is basically equal to the distance between the second tail handles. The spacing between the block main body and the first tail handle is controlled to be consistent with the spacing between the chain teeth and the second tail handle, and the serial zipper can be sewn on the fabric only by arranging a sewing program during sewing, so that the processing difficulty is reduced, and the production efficiency is improved.

Because of the above features and advantages, the utility model can be applied to a zipper bottom stop assembly and a serial zipper using the same.

Drawings

FIG. 1 is a schematic view of the axial side structure of a serial zipper embodying the technical scheme of the present utility model;

FIG. 2 is a schematic elevational view of the serial zipper;

FIG. 3 is a schematic view of the cross-sectional structure of FIG. 2 in the direction A-A;

FIG. 4 is a schematic view of the exploded construction of the lower stop assembly;

FIG. 5 is a schematic elevational view of the lower stop assembly;

FIG. 6 is a schematic view of a cross-sectional structure in the direction B-B in FIG. 5;

FIG. 7 is a schematic view of a cross-sectional structure in the direction C-C in FIG. 5;

FIG. 8 is a schematic view of the axial side structure of the fixing pin;

fig. 9 is a schematic view of the axial side direction structure of the movable plug.

Description of the embodiments

The structure of the zipper lower stop assembly and the serial zipper using the same applying the technical scheme of the utility model are further described below with reference to the accompanying drawings. The various implementation details disclosed below may be applied either selectively or in combination in one embodiment, even without direct functional association or co-ordination, except where explicitly stated to be equivalent or alternative embodiments.

As shown in fig. 1 to 3, the serial zipper 1 of the present utility model comprises two rows of zipper teeth 2 and a pull head 3, wherein each row of zipper teeth 2 is connected in series to one core wire 4, the zipper teeth 2 are uniformly connected to the core wire 4 at intervals, each zipper tooth 2 comprises a tooth main body 21 and a second tail handle 22 connected to the tail of the tooth main body 21, the distance between adjacent tooth main bodies 21 is defined as L1, and the distance between the second tail handles 22 is defined as L2. Since the second handles 22 have various structures, in this embodiment, as shown in fig. 2, each second handle 22 is in a frame shape with an opening toward the tooth body 21, and has two straight arms 23 connected to the tail of the tooth body 21 and a cross arm 24 connected to the tail of the two straight arms 23, and the distance L2 between the second handles 22 refers to the distance between two adjacent second handles 22. In another equivalent embodiment, the second handle 22 is L-shaped or T-shaped, with only one straight arm 23 connected to the tooth body 21. Further, the slider 3 includes an upper plate 31 and a lower plate 32 which are arranged at intervals up and down, a left side plate 33 and a right side plate 34 are disposed at edges of left and right sides of the upper plate 31 or the lower plate 32, the upper plate 31, the lower plate 32, the left side plate 33 and the right side plate 34 together define the fastener element channel 30, the left side plate 33 and the right side plate 34 are respectively disposed at sides of the tooth bodies 21 of the two rows of fastener elements 2, the slider 3 is slidably disposed on the tooth bodies 21, the tooth bodies 21 of the fastener elements 2 can be engaged or separated when passing through the fastener element channel 30, and the second tail handles 22 extend from cloth seams 35 of two sides of the slider 3.

Further, when the serial-type slide fastener 1 is sewn to the fabric, the stitches are respectively bound at two positions, the first position is the exposed core thread 4 between the fastener elements 2, and the second position is the second tail handle 22 extending rearward beyond the cloth slit 35, so that the serial-type slide fastener 1 can be fixed to the fabric at the front and rear positions.

In order to enable the alignment combination of the two rows of the teeth 2, the lower stop assembly further comprises a lower stop assembly, as shown in fig. 1-2 and fig. 4-8, the lower stop assembly comprises a pair of bolts 5, each bolt 5 comprises at least two sections of block-shaped main bodies 6, a first tail handle 7 is arranged on the outer side of each block-shaped main body 6, a connecting neck 8 is arranged between every two adjacent block-shaped main bodies 6, and the upper surface of each connecting neck 8 is shorter than the upper surface of each block-shaped main body 6. A pair of pins 5 are respectively arranged at intervals at the lower end portions of each row of the fastener elements 2, and the block-shaped body 6 or the connecting neck portion 8 is connected to the core wire 4.

Wherein the block-shaped bodies 6 are body portions constituting the plug pins 5, the block-shaped bodies 6 are arranged at intervals, and a pitch of the block-shaped bodies 6 is defined as L3. When at least part of the plug 5 is inserted into a slot on a block 9 mentioned below, the radially outer surface of the block body 6 is a surface which is matched with the slot wall surface of the slot on the block 9 in a cross section, and the block body 6 which is arranged at intervals is provided with at least one side surface which is in a sheet-like discontinuous arrangement, but the matching of the block body 6 with the slot is not affected.

The connecting neck 8 is a structure for connecting adjacent block-shaped bodies 6, the upper surface of the connecting neck 8 is shorter than the upper surface of the block-shaped bodies 6, so that a neck line groove 60 is formed between the adjacent block-shaped bodies 6 and the connecting neck 8 therebetween, which leaves a storage space for the suture when the suture is bound to the connecting neck 8. In order to better protect the suture, in this embodiment, the lower surface of the connecting neck 8 is shorter than the lower surface of the block-shaped main body 6 except the upper surface, and the inner surface of the connecting neck 8 is shorter than the inner surface of the block-shaped main body 6, so that the neck slot 60 with an open ring shape is formed on the plug 5. This has the advantage that the stitches can be housed in the neck slot 60, reducing the contact and friction of the stitches with the square 9, improving the service life of the zip; in addition, the stitching thread is directly bound with the connecting neck part 8 close to the outer side, the stitching thread can compress the edge part of the fabric, and the problem that the edge of the fabric is not fixed but is tilted in the prior art is well solved.

The stitching thread can be bound on the first handles 7 during stitching, the distance between two adjacent first handles 7 is L4, in this embodiment, the shape of the first handles 7 connected to the block-shaped main bodies 6 is identical to the shape of the second handles 22 connected to the fastener elements 2, the distance between two adjacent block-shaped main bodies 6 on the plug pin 5 is substantially equal to the distance between the fastener elements 2 (i.e. l1=l3), and the distance between two adjacent first handles 7 is substantially equal to the distance between two adjacent second handles 22 (i.e. l2=l4), so that the fastener elements 2 and the plug pin 5 on the serial-connection slide fastener 1 can be stitched to fabrics only by setting a stitching procedure during stitching. In addition, the suture can form a front position and a rear position on the zipper teeth 2 and the bolt 5, so that the suture can be bound, and the connection stability of the bolt 5 and the fabric is further improved.

The neck slot 60 is formed between the adjacent block-shaped main body 6 and the connecting neck 8 therebetween, and a tail-stem gap 70 corresponding to the connecting neck 8 is left between the adjacent two first tail stems 7, so as to further reduce the contact and friction between the suture and the block 9, as shown in fig. 9, the upper surface of the connecting neck 8 is shorter than the upper surface of the first tail stem 7, and thus the neck slot 60 is communicated with the tail-stem gap 70. The main function of this arrangement is to allow the neck slot 60 to communicate directly with the stem gap 70, and the suture line can not exceed the upper surfaces of the block-shaped main body 6 and the first stem 7 even under the state of tightening, so that the suture line is well protected, and the service life of the product is prolonged.

As shown in fig. 4 to 7, the pair of pins 5 includes a fixed pin 51 and a movable pin 52, and further includes a block 9, the fixed pin 51 is fixedly connected with the block 9 to form a tail end block 9 of the zipper, the block 9 is provided with a movable slot 91 arranged parallel to the fixed pin 51, the movable pin 52 can be freely inserted into the movable slot 91, and the first tail handle 7 on the movable pin 52 extends at least partially outwards to the outside of the movable slot 91. The connection between the fixing pin 51 and the square 9 is flexible, and is described below by two common structures.

First, a square step (not shown) is provided on one side of the square 9, a latch step (not shown) matching with the square step is provided on the fixing latch 51, and the fixing latch 51 and the square 9 are firmly connected by ultrasonic welding or glue bonding.

Second, a fixing slot 92 is further provided on the square 9, the fixing pin 51 is inserted into and fixed in the fixing slot 92, and the first tail handle 7 on the fixing pin 51 extends at least partially outwards to the outside of the fixing slot 92. Further, the block 9 and the fixing bolt 51 are respectively provided with a clamping boss 93 and an inverted buckle 53, when the fixing bolt 51 is inserted into the fixing slot 92, the inverted buckle 53 can be clamped into the clamping boss 93, so that the fixing bolt 51 and the fixing slot 92 are stably connected together.

In order to ensure the overall structural strength of the latch 5, a further technical solution may be that the block-shaped main body 6, the connecting neck 8 and the first tail handle 7 are integrally formed.

Claims (9)

1. A zipper bottom stop assembly comprising a pair of latches; the bolt is characterized by comprising at least two sections of block-shaped main bodies, wherein a first tail handle is arranged on the outer side of each block-shaped main body, a connecting neck is arranged between every two adjacent block-shaped main bodies, and the upper surface of the connecting neck is shorter than that of each block-shaped main body.

2. The zipper lower stop assembly of claim 1 wherein adjacent ones of the block-shaped bodies define neck slots with a connecting neck therebetween, a shank gap corresponding to the connecting neck being left between adjacent ones of the first shanks, the connecting neck having an upper surface that is shorter than an upper surface of the first shank, thereby allowing the neck slots to communicate with the shank gap.

3. The zipper bottom stop assembly of claim 1 wherein the lower and/or inner surface of the connecting neck is shorter than the lower and/or inner surface of the block body.

4. A zip fastener lower end stop assembly according to any one of claims 1 to 3, wherein the pair of pins comprises a fixed pin and a movable pin, and further comprises a square, wherein the fixed pin is fixedly connected with the square to form a tail end square of the zip fastener, a movable slot which is parallel to the fixed pin is formed in the square, the movable pin can be freely drawn and inserted into the movable slot, and a first tail handle of the movable pin at least partially extends outwards to the outside of the movable slot.

5. The zipper lower stop assembly of claim 4 wherein the block is further provided with a securing slot into which the securing latch is inserted and secured, the first tail shank of the securing latch extending at least partially outwardly of the securing slot.

6. The zipper lower stop assembly of claim 5 wherein the block and the fixing pin are provided with a snap-in boss and an inverted buckle, respectively, the inverted buckle being capable of snap-in the snap-in boss to thereby allow the fixing pin to be stably connected to the block when the fixing pin is inserted into the fixing slot.

7. The zipper bottom stop assembly of claim 4 wherein the block body, connecting neck and first shank are integrally formed.

8. The serial zipper comprises two rows of zipper teeth and a pull head, wherein each row of zipper teeth is connected in series on a core wire, and the zipper teeth are uniformly connected to the core wire at intervals; the zipper tooth comprises a tooth main body and a second tail handle connected to the tail of the tooth main body, wherein the pull head is arranged on the tooth main body in a sliding manner, and the second tail handle extends out from cloth seams at two sides of the pull head; further comprising a zipper lower stop assembly according to any one of claims 1 to 7, a pair of said pins being disposed at spaced apart intervals at the lower ends of each row of said teeth, said block-shaped body or connecting neck being connected to said core wire.

9. The stringers of claim 8, wherein the distance between the block-shaped bodies on the pins is substantially equal to the distance between the teeth, and the distance between the first handles is substantially equal to the distance between the second handles.