CN2629501Y

CN2629501Y - Improved structure of double-open-end zipper

Info

Publication number: CN2629501Y
Application number: CN 03264907
Authority: CN
Inventors: 王联洲
Original assignee: 王瑞玲
Priority date: 2003-05-23
Filing date: 2003-05-23
Publication date: 2004-08-04
Anticipated expiration: 2013-05-23

Abstract

The utility model provides an improved structure of the double opening zipper, a set pin is provided with an elasticity stop hook block which is easy for the top and down pulls to penetrate the chain belt seriatim; the top and bottom pulls can respectively penetrate the chain belt seriatim from the gap of the set pin; and outside of the elasticity stop hook block also can have the slanting convex and the function of stop. The structure can prevent being separated when the bottom pulls be pulled downward back, and the fore-mentioned hook department coordinates with hollow arc department, the department is preinstalled at the sidewall of the set pin, the coordination makes penetrating top and bottom pulls to be more smooth and convenient, and can also specially select the No.3 and No.4 zippers which have small volume and high requests for the precision.

Description

The improvement structure of two open end zippers

Technical field

The utility model relates to slide fastener, refers in particular to the in addition improved design of steady pin of two open end zippers.

Background technology

Two open end zippers (8) of commonly using as shown in Figure 1, its upper left end (81), upper right ending (figure does not show), latch (83), steady pin (84) all gold mining belongs to material and charges and attacks fixing, usually include materials such as plumbous and nickel owing to this metal material and do not meet environmental requirement, because of metal steady pin (84) when charging and attacking fixedly with chain belt (80) if beat too flat then cause easily because of the drop-down strength of pull head (91) is excessive down under pull head (91) disengaging, if charge and attack defective tightness then steady pin (84) get loose easily, and the lower end of this time pull head (91) system exceeded the lower end (801) (with reference to figure 2) of chain belt (80) downwards when following pull head (91) was pulled down to bottom, therefore more not attractive in appearance, and whole slide fastener (8) is inconvenient when the operation of sewing above clothing.

Some dealer ties up to the top of open end zipper and below to adopt the plastic cement material one respectively and penetrate left and right going up and end and latch, steady pin (figure does not show), though so meet the environmental protection demand because of adopting plastic material, but its shortcoming is a left side, upper right ending and latch, steady pin can not be once simultaneously and the chain belt injection molding, so the no matter not only grand low but also also raising relatively of cost of efficient with regard to mould manufacturing and finished product manufacturing are produced.

Same applicant's utility model 02284743.X patent application is existing to be improved, only when being imposed in volume little No. three or No. four slide fasteners, on, the action that wears of following pull head then seems with respect to bulky slide fastener and has some setbacks.

Summary of the invention

The purpose of this utility model is to provide the improvement structure of a kind of pair of open end zipper, overcomes the above-mentioned shortcoming of existing product.

For achieving the above object, solution of the present utility model is: the improvement structure of a kind of pair of open end zipper, this slide fastener have penetrate and be coated on the chain belt top upper left only, upper right latch and the steady pin that ends and be coated on the chain belt below, and wherein latch and steady pin have a slideway respectively, direction slideway direction is extended with an elasticity stop hook piece under the adjacent sidewall of the slideway of this steady pin, the outside of the hook portion of this elasticity stop hook piece has an oblique convex surface, and another adjacent sidewall of the inboard of the hook portion of this elasticity stop hook piece and slideway forms less clearance, on, following pull head can be respectively thus the gap penetrate, and its sidewall of mat struts the hook portion of elasticity stop hook piece and wear into chain belt by this slideway, and on aforesaid, following pull head is by after the hook portion of elasticity stop hook piece, this hook portion can its elastic restoring force amount of mat and the reversion original position with on preventing, following pull head breaks away from, and the below side of the hook portion of wherein aforesaid elasticity stop hook piece also connects a stopper section, and then pulled down to bottom the time when the aforementioned following pull head that has penetrated chain belt, the ora terminalis of the sidewall of this time pull head can be by this stopper section institute backstop.

By aforementioned feature, because it is last, following pull head can be respectively penetrates chain belt by the gap of steady pin in regular turn, therefore with regard to manufacturing process, upper left ending, upper right ending, latch, steady pin can one time injection molding in the chain belt top and then wear, following pull head, can reach the simplification flow process relatively, the purpose of enhancing productivity and reducing cost, and it is because last, following pull head can penetrate or take out, therefore when last, can take out during damage situations such as following pull head generation fault or depainting and change, in addition because a left side, upper right ending, latch, steady pin all adopts the plastic cement material of not leaded or nickel, the demand that also meets environmental protection relatively, and because the hook portion of the aforementioned elasticity stop hook piece outside has an oblique convex surface, thus this oblique convex surface tool backstop action of nationality and can descend pull head pack into slide fastener after when pulling down tool prevent the effect that breaks away from.Another sidewall of the slideway adjacency of this steady pin is formed with the concave-arc part that caves in addition, this inboard that concave-arc part system approaches the hook portion of elasticity stop hook piece of caving in, when last, following pull head just make when passing the hook portion inboard of this elasticity stop hook piece can be resisted against this concave-arc part that caves in be beneficial to aforementioned on, following pull head penetrate action, and simultaneously because the width at the wideest position of the hook portion of this elasticity stop hook piece adds the cave in summation width system at position of concave-arc part of having of another sidewall of steady pin is slightly less than, the width of channel of following pull head, even thereby still can possess when making the less slide fastener of the volume of No. three or No. four, following pull head can be arranged in the convenience of slide fastener smoothly;

The slideway of this steady pin is to have the thin slice body of a boundary in the two side of its adjacency;

One sidewall of this steady pin is upper and lower and side coating chain belt by it, and its another sidewall is upper and lower and side coating chain belt by it, to have preferable coating steadiness.

Owing to adopted such scheme, another sidewall of the slideway adjacency of its steady pin of the utility model is formed with a convex clip in addition, this convex clip is the hook portion that approaches elasticity stop hook piece, further has the effect that connects disengaging when preventing down that pull head pulls down from the hook portion next door of this elasticity stop hook piece by retaining effect on this convex clip tool.

The hook portion outside of the elasticity stop hook piece of its steady pin has an oblique convex surface, this oblique convex surface tool backstop action of mat and can after down pull head is packed slide fastener into, pull down the time tool prevent the effect that breaks away from, and another sidewall of the slideway adjacency of this steady pin is formed with the concave-arc part that caves in addition, when last, following pull head just make when passing the hook portion inboard of this elasticity stop hook piece can be resisted against this concave-arc part that caves in be beneficial to aforementioned on, following pull head penetrate action, and simultaneously because the width at the wideest position of the hook portion of this elasticity stop hook piece adds the cave in summation width system at position of concave-arc part of having of another sidewall of steady pin is slightly less than, the width of channel of following pull head, even thereby still can possess during the less slide fastener of the volume of producing No. three or No. four, following pull head can be arranged in the convenience on the slide fastener smoothly.

Description of drawings

The stereogram of two open end zippers is commonly used by Fig. 1 system.

The schematic perspective view of the following pull head of two open end zippers to the lower end commonly used by Fig. 2 system.

Fig. 3 is the stereogram that the chain belt of the utility model embodiment does not mesh as yet.

Fig. 4 is the part back of the body parallax stereogram that the chain belt of the utility model embodiment does not mesh as yet.

Fig. 5 is that the utility model embodiment wherein goes up, and following pull head does not penetrate the three-dimensional exploded view of the chain belt of a side.

Fig. 6 is that the utility model embodiment wherein goes up, and following pull head does not penetrate the floor map of the chain belt of a side.

Fig. 7 is that this industry new embodiment wherein goes up, and following pull head has penetrated the floor map of the chain belt of a side.

Fig. 8 is that the utility model embodiment wherein amplifies the combination schematic diagram in the plane of steady pin.

Fig. 9 is that the utility model embodiment wherein goes up, and following pull head wears the part plane enlarged diagram behind the location.

The specific embodiment

Shown in Fig. 3～9 figure, the steady pin of a kind of pair of open end zipper of the utility model improves structure, wherein this slide fastener has and penetrates and be coated on the upper left of chain belt 1 top and end 2, upper rightly end 3 and be coated on the upper left of chain belt 1 top and end, the upper right latch 4 and steady pin 5 that ends and be coated on chain belt 1 below, and wherein latch 4 and steady pin 5, and wherein latch and steady pin are to have a slideway 41,51 respectively.

Slideway 51 an adjacent sidewall 52 belows of this steady pin 5 are to be extended with an elasticity stop hook piece 521 to slideway 51 directions, the outside of the hook portion 5211 of this elasticity stop hook piece 521 has an oblique convex surface 5213, the inboard of the hook portion 5211 of this elasticity stop hook piece 521 then forms less clearance A (in addition with reference to figure 8 with adjacent another sidewall 53 of slideway 51,9), and then in the order, following

pull head

6,7 can be respectively thus gap A penetrate, and its sidewall 61 of mat, 71 hook portions 5211 with elasticity stop hook piece 521 strut and wear into chain belt 1 by this slideway 51, and on aforesaid, following

pull head

6,7 by after the hook portion 5211 of elasticity stop hook piece 521, this hook portion 5211 can its elastic restoring force amount of mat and the reversion original position with on preventing, following

pull head

6,7 break away from, and the below side of the hook portion 5211 of wherein aforesaid elasticity stop hook piece 521 also connects a stopper section 5212, and then pulled down to bottom the time when the aforementioned following pull head that has penetrated chain belt 17, the ora terminalis of the sidewall 71 of this time pull head 7 can be by 5212 backstops in this stopper section (with reference to figure 8,9).

Little by aforementioned spy, because it is last, following

pull head

6,7 can be respectively penetrates chain belt 1 by the gap A of steady pin 5 in regular turn, with reference to figure 5, Fig. 6, Fig. 7, Fig. 8, therefore with regard to manufacturing process, upper leftly end 2, upper rightly end 3, latch 4, steady pin 5 can one time injection molding in chain belt 1 top and then wear, following

pull head

6,7, can reach the simplification processing procedure relatively, the purpose of enhancing productivity and reducing cost, and it is because last, following

pull head

6,7 can penetrate or take out, therefore when last, following

pull head

6,7 can take out and change when producing damages situation such as faults or depainting, in addition because a left side, and upper right only 2,3, latch 4, steady pin 5 all adopt the plastic cement material of not leaded or nickel, also meet the demand of environmental protection relatively, and because hook portion 5211 outsides of aforementioned elasticity stop hook piece 521 have an oblique convex surface 5213, thus on these oblique convex surface 5213 tools of mat the retaining effect and can descend pull head 7 pack into slide fastener after when pulling down tool prevent the effect that breaks away from.

Moreover, another sidewall 53 of slideway 51 adjacency of aforementioned fixation pin 5 is formed with the concave-arc part 530 that caves in addition, this concave-arc part 530 that caves in is the inboard of approaching the hook portion 5211 of elasticity stop hook piece 521, when last, following

pull head

6,7 just make when passing hook portion 5211 inboards of this elasticity stop hook piece 521 can be resisted against this concave-arc part 530 that caves in be beneficial to aforementioned on, following

pull head

6,7 penetrate action, and simultaneously because the width at the wideest position of the hook portion 5211 of this elasticity stop hook piece 521 adds the cave in summation width W (with reference to figure 9) at position of concave-arc part 530 of having of steady pin 5 another sidewalls 53, system is slightly less than, following

pull head

6,7 passage 60,70 width, even thereby still can possess when make producing the less slide fastener of the body volume of No. three or No. four, following

pull head

6,7 can be arranged in the convenience of slide fastener smoothly.

The slideway 51 of aforementioned fixation pin 5 is to have the thin slice body 510 (with reference to figure 9) of a boundary in the two

side

52,53 of its adjacency.

Sidewall 52 tops of slideway 51 adjacency of aforementioned fixation pin 5 have the plural through hole 522 that is communicated to chain belt 1, steady pin 5 injection moldings that can allay this plastic cement material when chain belt 1 strain and be.

One sidewall 52 of aforementioned fixation pin 5 is upper and lower and side coating chain belt 1 (with reference to figure 4) by it, and its another sidewall 53 also is upper and lower and side coating chain belt 1 by it, to have preferable coating steadiness.

In sum, the utility model is concluded and is had following effect:

1. another sidewall 53 of slideway 51 adjacency of steady pin 5 is formed with the concave-arc part 530 that caves in addition, when last, following

pull head

6,7 penetrate action, and simultaneously because the width at the wideest position of the hook portion 5211 of this elasticity stop hook piece 521 adds that the cave in summation width W (with reference to figure 9) at position of concave-arc part 530 of having of steady pin 5 another sidewalls 53 is on being slightly less than, following

pull head

6,7 passage 60,70 width, even thereby still can possess when make producing the less slide fastener of the volume of No. three or No. four, following

pull head

6,7 can be arranged in the convenience of slide fastener smoothly;

2. hook portion 5211 outsides of the elasticity stop hook piece 521 of steady pin 5 have an oblique convex surface 5213, thus these oblique convex surface 5213 tool backstop actions of mat and can after down pull head 7 is packed slide fastener into, pull down the time tool prevent the effect that breaks away from;

3. upper and

lower pull head

6,7 can be respectively penetrates chain belt 1 by the gap A of steady pin 5 in regular turn, therefore with regard to manufacturing process, upper leftly end 2, upper rightly end 3, latch 4, steady pin 5 can one time injection molding in chain belt 1 top and then wear upper and

lower pull head

6,7, can reach the simplification processing procedure relatively, the purpose of enhancing productivity and reducing cost.

Claims

1. the improvement structure of two open end zippers, this slide fastener have and penetrate and upper leftly ending of being coated on the chain belt top, upper rightly end and be coated on latch and steady pin below the chain belt, and

Wherein latch and steady pin have a slideway respectively, it is characterized in that:

Direction slideway direction is extended with an elasticity stop hook piece under the adjacent sidewall of the slideway of this steady pin, the outside of the hook portion of this elasticity stop hook piece has an oblique convex surface, another adjacent sidewall of the inboard of the hook portion of this elasticity stop hook piece and slideway forms less clearance, upper and lower pull head respectively thus the gap penetrate, the below side of the hook portion of this elasticity stop hook piece also connects a stopper section.

2. the improvement structure of pair open end zipper according to claim 1, it is characterized in that: another sidewall of the slideway adjacency of this steady pin is formed with the concave-arc part that caves in addition, this concave-arc part system of caving in approaches inboard of the hook portion of elasticity stop hook piece, and the width at the wideest position of the hook portion of this elasticity stop hook piece adds that having of another sidewall of steady pin cave in the summation width at position of concave-arc part less than the width of channel of upper and lower pull head.

3. the improvement structure of pair open end zipper according to claim 1 is characterized in that: the slideway of this steady pin has the thin slice body of a boundary in the two side of its adjacency.

4. the improvement structure of pair open end zipper according to claim 1 is characterized in that: a sidewall of this steady pin system upper and lowerly coats chain belt with side by it, and its another sidewall also upper and lowerly coats chain belt with side by it.