CN202588544U

CN202588544U - Zipper tooth of zipper

Info

Publication number: CN202588544U
Application number: CN 201220193606
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 zipper tooth of a zipper. The zipper tooth comprises a head and a pair of legs extending from the rear end of the head backwards to form a Y-shaped section; the outer surfaces of the legs comprise a first plane connected with the side wall of the head and a second plane connected with the first plane and turned inwards; the inner surfaces of the legs comprise a third plane connected with the rear end of the head and a fourth plane connected with the third plane and turned inwards; and the width of each leg is gradually reduced from front to back and then is gradually increased. The widths of the legs are gradually reduced from front to back and then are gradually increased respectively, and the widths of the legs at the rear ends are maximal, so that the keying strength of the zipper tooth can be improved, the zipper tooth is prevented from falling off, and the quality of the zipper is improved; and the widths of the legs are not uniform, so that materials of the zipper tooth can be saved and the cost is reduced.

Description

Slide fastener coupling element

Technical field

The utility model relates to slide fastener, specifically a kind of slide fastener coupling element 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 slide fastener coupling element to the problems referred to above, uses the slide fastener of this slide fastener coupling element not fragile, reliable in quality.

Technical scheme according to the utility model: a kind of slide fastener coupling element; 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 cross section of said head is a polygon, and the front end of said head is the plane parallel with said rear end.

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.

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 slide fastener coupling element, 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 cross section of head 10 is a polygon, and the front end 11 of head 10 is the plane parallel with rear end 12.

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; And 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. slide fastener coupling element; 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 slide fastener coupling element 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 slide fastener coupling element 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 slide fastener coupling elements, it is characterized in that: said bend (14) is a cancave cambered surface.

5. according to the described slide fastener coupling element of claim 1, it is characterized in that: the cross section of said head (10) is a polygon, and the front end (11) of said head (10) is and parallel plane, said rear end (12).