CN202588547U

CN202588547U - Metal zipper tooth

Info

Publication number: CN202588547U
Application number: CN 201220193704
Authority: CN
Inventors: 唐冠玉
Original assignee: WUXI JINXING INDUSTRIAL Co Ltd
Current assignee: WUXI JINXING INDUSTRIAL Co Ltd
Priority date: 2012-04-29
Filing date: 2012-04-29
Publication date: 2012-12-12
Anticipated expiration: 2022-04-29

Abstract

The utility model relates to a metal zipper tooth. The metal zipper tooth comprises a head part and a pair of leg parts extending backward from the rear end of the head part, and the head part and the leg parts form a Y-shaped cross section; the rear end of the head part is a plane; the outer surfaces of the leg parts comprise first planes connected with the side wall of the head part and second planes which are connected with the first planes and turn inward, and the inner surfaces of the leg parts comprise third planes connected with the rear end of the head part and fourth planes which are connected with the third planes and turn inward; and the width of each leg part is decreased and then increased from front to back. The widths of the pair of the leg parts of the metal zipper tooth provided by the utility model are decreased and then increased from front to back, and the widths of the rear ends of the leg parts are the largest, so the keying strength of the zipper tooth is improved, the falling of the zipper tooth is avoided, and the quality of the zipper is improved; and a non-uniform width design is applied to the leg parts, so that the materials for making the zipper tooth are saved, and the cost is reduced.

Description

The metallic bond tooth

Technical field

The utility model relates to slide fastener, specifically a kind of metallic bond tooth that obtains through the cutting metal bar.

Background technology

Traditional slide fastener generally adopts the metallic bond tooth, and the metallic bond tooth is engaged in and forms the half chain on the zipper strip, and a pair of half chain is combined the formation slide fastener.The metallic bond tooth comprises that head reaches the extended backward a pair of shank in rear end from the head, constitutes y-shaped cross-section.Usually, the width of this a pair of shank is uniformly, and promptly everywhere width is identical.The chain tooth of this structure, its intensity that is engaged on the zipper strip is not too high, comes off from zipper strip easily, causes the damage of slide fastener, and and then influences the use of slide fastener.

Summary of the invention

The utility model provides a kind of keying strength high metallic bond tooth to the problems referred to above, uses the slide fastener of this chain tooth not fragile, reliable in quality.

Technical scheme according to the utility model: a kind of metallic bond tooth; Comprise head and extended backward a pair of shank from the rear end of said head; Constitute y-shaped cross-section; The rear end of said head is the plane; The outer surface of said a pair of shank comprises second plane of first plane that links to each other with said head side wall and the inside turnover that links to each other with said first plane, and the inner surface of said a pair of shank comprises Siping City's face of the 3rd plane that links to each other with said head rear end and the inside turnover that links to each other with said the 3rd plane, and the width of each said shank is by going to the back to reduce gradually to increase gradually more earlier.

The connecting place of said first plane and said head side wall is provided with bend.

The connecting place of said the 3rd plane and said head rear end and the connecting place on said Siping City face and said the 3rd plane are provided with bend.

Said bend is a cancave cambered surface.

The front end of said head is aduncate cancave cambered surface.

The technique effect of the utility model is: by going to the back to reduce gradually to increase gradually more earlier, the rear end width of shank is maximum respectively for the width of a pair of shank in the utility model, can increase the keying strength of chain tooth, prevents the chain odontoptosis, improves the quality of slide fastener; The width of shank adopts inhomogeneous design, can save the material of chain tooth, reduces cost; The cancave cambered surface of head front end can increase the light slippery of pull head pulling when the slide fastener folding.

Description of drawings

Fig. 1 is the structural representation of the utility model.

The specific embodiment

Be further described below in conjunction with the specific embodiment of accompanying drawing the utility model.

Among Fig. 1, comprise head 10, front end 11, rear end 12, shank 13, bend 14, first plane 15, second plane 16, the 3rd plane 17, Siping City's face 18 etc.

As shown in Figure 1, the utility model is a kind of metallic bond tooth, comprises that head 10 reaches 10 the extended backward a pair of shank 13 in rear end 12 from the head, constitutes y-shaped cross-section.

The rear end 12 of head 10 is the plane, and the front end 11 of head 10 is aduncate cancave cambered surface.The cancave cambered surface of head 10 front ends 11 can increase the light slippery of pull head pulling when the slide fastener folding.

The outer surface of a pair of shank 13 comprises second plane 16 of first plane 15 that links to each other with head 10 sidewalls and the inside turnover that links to each other with first plane 15; The inner surface of a pair of shank 13 comprises Siping City's face 18 of the 3rd plane 17 that links to each other with head 10 rear ends 12 and the inside turnover that links to each other with the 3rd plane 17; The width of each shank 13 is by going to the back to reduce gradually to increase gradually more earlier, and the rear end width of shank 13 is maximum.

First plane 15 of shank 13 outer surfaces is provided with bend 14 with the connecting place of head 10 sidewalls; The 3rd plane 17 and the connecting place of head 10 rear ends 12 and the connecting place on Siping City's face 18 and the 3rd plane 17 of shank 13 inner surfaces also are provided with bend 14.Bend 14 is a cancave cambered surface, rounding off.

By going to the back to reduce gradually to increase gradually more earlier, the rear end of shank 13 is the part of interlock zipper strip to the width of a pair of shank 13 in the utility model respectively, and its width is maximum, can increase the keying strength of chain tooth, prevents the chain odontoptosis, improves the quality of slide fastener; The width of shank 13 adopts inhomogeneous design, can save the material of chain tooth, reduces cost.

Claims

1. metallic bond tooth; Comprise that head (10) reaches the extended backward a pair of shank in rear end (12) (13) from said head (10); Constitute y-shaped cross-section; It is characterized in that: the rear end (12) of said head (10) is the plane; The outer surface of said a pair of shank (13) comprises second plane (16) of first plane (15) that links to each other with said head (10) sidewall and the inside turnover that links to each other with said first plane (15); The inner surface of said a pair of shank (13) comprises Siping City's face (18) of the 3rd plane (17) that links to each other with said head (10) rear end (12) and the inside turnover that links to each other with said the 3rd plane (17), and the width of each said shank (13) is by going to the back to reduce gradually to increase gradually more earlier.

2. according to the described metallic bond tooth of claim 1, it is characterized in that: said first plane (15) is provided with bend (14) with the connecting place of said head (10) sidewall.

3. according to the described metallic bond tooth of claim 1, it is characterized in that: said the 3rd plane (17) is provided with bend (14) with the connecting place of said head (10) rear end (12) and the connecting place on said Siping City face (18) and said the 3rd plane (17).

4. according to claim 2 or 3 described metallic bond teeth, it is characterized in that: said bend (14) is a cancave cambered surface.

5. according to the described metallic bond tooth of claim 1, it is characterized in that: the front end (11) of said head (10) is aduncate cancave cambered surface.