CN205432418U - Anti -sticking tooth pull head - Google Patents
Anti -sticking tooth pull head Download PDFInfo
- Publication number
- CN205432418U CN205432418U CN201521101067.0U CN201521101067U CN205432418U CN 205432418 U CN205432418 U CN 205432418U CN 201521101067 U CN201521101067 U CN 201521101067U CN 205432418 U CN205432418 U CN 205432418U
- Authority
- CN
- China
- Prior art keywords
- plane
- upper saddle
- pull head
- inner bottom
- rear portion
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 230000007704 transition Effects 0.000 claims description 3
- 238000013316 zoning Methods 0.000 description 14
- 230000005764 inhibitory process Effects 0.000 description 4
- 238000005452 bending Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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- Slide Fasteners (AREA)
Abstract
The utility model discloses an anti -sticking tooth pull head, including upper saddle, lower slide seat and spliced pole, the front end of upper saddle passes through the front end that lower slide seat is connected to the spliced pole, and interval between upper saddle anterior and lower slide seat's the front portion is greater than the interval between rear portion and the lower slide seat's of upper saddle the rear portion. The interval that is located anterior interval between upper saddle and the lower slide seat and is located the rear portion is separately set for, it establishes greatlyyer than conventional scope to be located anterior interval, it prescribes a limit to when the part between upper saddle and the lower slide seat compares the conventionality and sets up also greatlyyer to lie in chain tooth between front end and the lower slide seat's of upper saddle the front end when chain belt is buckled like this, the rear portion of pull head just can smoothly be slided to the chain tooth during pull head pulling, and the cassette tape phenomenon can not appear, and the interval that is located the rear portion sets for can according to conventional scope, can satisfy the meshing requirement at this within range, the cassette tape phenomenon can not appear again.
Description
Technical field
This utility model relates to a kind of anti-latch pull head.
Background technology
Existing slide fastener includes chain belt, be located in chain belt chain tooth and the pull head being slidably connected on chain tooth, pull head slides and makes two row chain teeth engage each other or disengage.Pull head includes upper saddle, lower slider and connection post, the front end of upper saddle connects the front end of lower slider by connecting post, upper saddle is the biggest with the spacing of lower slider, tooth is easily taken off after then chain tooth is difficult to engagement or engagement, upper saddle is the least with the spacing of lower slider, then pull head there will be " cassette tape " phenomenon, i.e. pull head be stuck in chain belt certain position be difficult to slide or slide have some setbacks, so generally upper saddle being limited in certain scope relative to chain tooth with the spacing of lower slider, in this normal ranges, slide fastener can meet engagement requirement, does not also have card zoning.But for having the slide fastener of bigger width chain tooth, once chain belt bends, and chain tooth is crooked will be stuck between the front end of upper saddle and the front end of lower slider, there is card zoning.
Summary of the invention
Problem to be solved in the utility model is to provide a kind of anti-latch pull head, it is to avoid the generation of card zoning.
In order to solve above-mentioned technical problem, this utility model adopts the following technical scheme that a kind of anti-latch pull head, including upper saddle, lower slider and connection post, the front end of described upper saddle connects the front end of lower slider by connecting post, and the spacing between front portion and the front portion of lower slider of described upper saddle is more than the spacing between rear portion and the rear portion of lower slider of upper saddle.The spacing being positioned at front portion between upper saddle and lower slider and the spacing being positioned at rear portion separately set, the spacing being positioned at front portion sets bigger than normal ranges, the part that so during chain belt bending, chain tooth between the front end and the front end of lower slider of upper saddle is limited between upper saddle and lower slider is the biggest when arranging than routine, when pull head pulls, chain tooth just smooth and easy can slide into the rear portion of pull head, without card zoning occurs, and it is positioned at the spacing range set routinely at rear portion, engagement requirement can be met in the range of this, do not have again card zoning, this structure visible designs for the chain tooth of bigger width, even if chain belt bends also does not haves card zoning, the most also engagement requirement is met.
Improving, described upper saddle has inner bottom surface I, and described inner bottom surface I includes plane I and plane II, the rear end of described plane I is connected with the front end of plane II, described plane I is inclined-plane, and described plane I slopes inwardly while extending from front to back, and described plane II is horizontal plane.
Improving, described upper saddle has inner bottom surface I, and described inner bottom surface I is inclined-plane, and described inner bottom surface I slopes inwardly while extending from front to back.
Improving, described upper saddle has inner bottom surface I, and described inner bottom surface I includes that plane III and plane IV, described plane III and plane IV are horizontal plane, and the rear end of described plane III connects the front end of plane IV by joint face, and described plane III is positioned at the outside of plane IV.
Improving, described joint face is inclined-plane, and described joint face slopes inwardly while extending from front to back.Alleviate the mutual inhibition of joint face and chain tooth, it is to avoid the generation of card zoning.
Improving, described lower slider has inner bottom surface II, and described inner bottom surface II is horizontal plane.
Improve, between described inner bottom surface I and the front side wall of upper saddle, pass through round-corner transition.Alleviate the upper saddle front end inhibition to chain tooth, avoid the generation of card zoning further.
Improving, described upper saddle connects handle.
Beneficial effect:
After using technique scheme, a kind of anti-latch pull head of this utility model, the spacing being positioned at front portion between upper saddle and lower slider and the spacing being positioned at rear portion separately set, the spacing being positioned at front portion sets bigger than normal ranges, the part that so during chain belt bending, chain tooth between the front end and the front end of lower slider of upper saddle is limited between upper saddle and lower slider is the biggest when arranging than routine, when pull head pulls, chain tooth just smooth and easy can slide into the rear portion of pull head, without card zoning occurs, and it is positioned at the spacing range set routinely at rear portion, engagement requirement can be met in the range of this, do not have again card zoning, visible this structure designs for the chain tooth of bigger width, even if chain belt bends also does not haves card zoning, the most also engagement requirement is met.
Accompanying drawing explanation
Below in conjunction with the accompanying drawings detailed description of the invention of the present utility model is described further:
Fig. 1 is the structure chart of embodiment one；
Fig. 2 is the sectional view of pull head in embodiment one；
Fig. 3 is the sectional view of pull head in embodiment two；
Fig. 4 is the sectional view of pull head in embodiment three.
Detailed description of the invention
Embodiment one:
nullAs depicted in figs. 1 and 2，A kind of anti-latch pull head，Including upper saddle 1、Lower slider 2、Connect post 3 and handle 4，The front end of upper saddle 1 connects the front end of lower slider 2 by connecting post 3，Handle 4 is located on upper saddle 1，Spacing between front portion and the front portion of lower slider 2 of upper saddle 1 is more than the spacing between rear portion and the rear portion of lower slider 2 of upper saddle 1，Concrete structure is: upper saddle 1 has inner bottom surface I 10，Inner bottom surface I 10 includes plane I 11 and plane II 12，The rear end of plane I 11 is connected with the front end of plane II 12，Plane I 11 is inclined-plane，Plane I 11 slopes inwardly while extending from front to back，Plane II 12 is horizontal plane，Lower slider 2 has inner bottom surface II 21，Inner bottom surface II 21 is horizontal plane，So，During chain belt bending，The part that chain tooth between the front end of the front end of upper saddle 1 and lower slider 2 is limited between upper saddle 1 and lower slider 2 is the biggest when arranging than routine，When pull head pulls, chain tooth just smooth and easy can slide into the rear portion of pull head，Without card zoning occurs，And it is positioned at the spacing range set routinely at rear portion，Engagement requirement can be met in the range of this，Do not have again card zoning，Visible this structure designs for the chain tooth of bigger width，Even if chain belt bends also does not haves card zoning，The most also engagement requirement is met.In order to alleviate upper saddle 1 front end inhibition to chain tooth further, by fillet 16 transition between the front side wall of inner bottom surface I 10 and upper saddle 1.In addition, plane I 11 also can be replaced round and smooth curved surface.
Embodiment two:
The present embodiment is similar with embodiment one, and difference is, upper saddle 1 has inner bottom surface I 10, and inner bottom surface I 10 is inclined-plane, and inner bottom surface I 10 slopes inwardly while extending from front to back, sees Fig. 3.In addition, inner bottom surface I 10 can also replace with round and smooth curved surface.
Embodiment three:
The present embodiment is similar with embodiment one, difference is, upper saddle 1 has inner bottom surface I 10, inner bottom surface I 10 includes plane III 13 and plane IV 14, plane III 13 and plane IV 14 are horizontal plane, the rear end of plane III 13 connects the front end of plane IV 14 by joint face 15, plane III 13 is positioned at the outside of plane IV 14, see Fig. 4, in the present embodiment, joint face 15 is inclined-plane, and joint face 15 slopes inwardly while extending from front to back, certainly joint face 15 can also be round and smooth curved surface, so can alleviate the joint face 15 inhibition to chain tooth.
In addition to above preferred embodiment, this utility model also has other embodiment, those skilled in the art can be variously modified according to this utility model and deform, and without departing from spirit of the present utility model, all should belong to scope defined in this utility model claims.
Claims (8)
1. an anti-latch pull head, including upper saddle, lower slider and connection post, the front end of described upper saddle connects the front end of lower slider by connecting post, it is characterised in that: the spacing between front portion and the front portion of lower slider of described upper saddle is more than the spacing between rear portion and the rear portion of lower slider of upper saddle.
One the most according to claim 1 anti-latch pull head, it is characterized in that: described upper saddle has inner bottom surface I, described inner bottom surface I includes plane I and plane II, the rear end of described plane I is connected with the front end of plane II, described plane I is inclined-plane, described plane I slopes inwardly while extending from front to back, and described plane II is horizontal plane.
One the most according to claim 1 anti-latch pull head, it is characterised in that: described upper saddle has inner bottom surface I, and described inner bottom surface I is inclined-plane, and described inner bottom surface I slopes inwardly while extending from front to back.
One the most according to claim 1 anti-latch pull head, it is characterized in that: described upper saddle has inner bottom surface I, described inner bottom surface I includes plane III and plane IV, described plane III and plane IV are horizontal plane, the rear end of described plane III connects the front end of plane IV by joint face, and described plane III is positioned at the outside of plane IV.
One the most according to claim 4 anti-latch pull head, it is characterised in that: described joint face is inclined-plane, and described joint face slopes inwardly while extending from front to back.
6. according to the arbitrary described one anti-latch pull head of claim 1 to 5, it is characterised in that: described lower slider has inner bottom surface II, and described inner bottom surface II is horizontal plane.
7. according to the arbitrary described one anti-latch pull head of claim 2 to 5, it is characterised in that: pass through round-corner transition between described inner bottom surface I and the front side wall of upper saddle.
8. according to the arbitrary described one anti-latch pull head of claim 1 to 5, it is characterised in that: described upper saddle connects handle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521101067.0U CN205432418U (en) | 2015-12-25 | 2015-12-25 | Anti -sticking tooth pull head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521101067.0U CN205432418U (en) | 2015-12-25 | 2015-12-25 | Anti -sticking tooth pull head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205432418U true CN205432418U (en) | 2016-08-10 |
Family
ID=56578433
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521101067.0U Active CN205432418U (en) | 2015-12-25 | 2015-12-25 | Anti -sticking tooth pull head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205432418U (en) |
-
2015
- 2015-12-25 CN CN201521101067.0U patent/CN205432418U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |