CN203157920U - Gear shaft for safety belt of automobile - Google Patents
Gear shaft for safety belt of automobile Download PDFInfo
- Publication number
- CN203157920U CN203157920U CN 201320183459 CN201320183459U CN203157920U CN 203157920 U CN203157920 U CN 203157920U CN 201320183459 CN201320183459 CN 201320183459 CN 201320183459 U CN201320183459 U CN 201320183459U CN 203157920 U CN203157920 U CN 203157920U
- Authority
- CN
- China
- Prior art keywords
- gear shaft
- gear wheel
- wheel shaft
- shaft body
- car belt
- Prior art date
- 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.)
- Expired - Fee Related
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- Gears, Cams (AREA)
Abstract
Disclosed is a gear shaft for a safety belt of an automobile. By the gear shaft, problems of troublesome processing and low processing yield of existing gear shafts for safety belts of automobiles are solved. The gear shaft comprises a gear shaft body. A through hole is formed in the gear shaft body, the gear shaft body comprises a nut and a screw, the nut is in the shape of a circular truncated cone, the thickness of the nut is 1/13-1/15 of that of the screw, the hardness of the gear shaft body is 45-75HRB, and integral cold heading is performed on low-carbon steel to form the gear shaft body. The gear shaft has the advantages that the integral cold heading is performed on the low-carbon steel to form the gear shaft body, so that the gear shaft can be processed conveniently, materials are saved, the cost is reduced, and the qualified rate of the gear shaft is greatly increased; and the gear shaft is simple in structure and suitable for large-scale production, and can be processed conveniently, and the production efficiency is improved.
Description
Technical field
The utility model relates to the car belt technical field, is specifically related to a kind of for the gear wheel shaft on the car belt.
Background technology
Car belt is exactly to be used for guaranteeing that at automobile passenger and chaufeur are subjected to preventing when fiercely colliding the device that the passenger is hurt at vehicle body, usually automotive safety band structure more complicated.Gear wheel shaft on the car belt generally includes T cap portion and threaded shank, and gear wheel shaft is provided with through hole, the normally process boring of existing car belt gear wheel shaft, cutting moulding, waste of material is bigger, make productive costs than higher, and because the structure more complicated on the car belt, the requirement of T cap portion can not be too thick, cause the product cracking when making boring easily, reduced the yield rate of product.
Summary of the invention
Existing car belt gear wheel shaft processing bothers in the background technology in order to solve, the problem that the processed finished products rate is low, and it is a kind of for the gear wheel shaft on the car belt that the utility model provides.
The technical solution of the utility model is: a kind of for the gear wheel shaft on the car belt, comprise the gear wheel shaft body, described gear wheel shaft body is provided with through hole, the gear wheel shaft body comprises nut portion and threaded shank, described nut portion becomes circular platform type, the thickness of described nut portion is the 1/13-1/15 of threaded shank, and the hardness of described gear wheel shaft body is 45-75HRB, and described gear wheel shaft body adopts dead-soft steel one cold-heading molding.
As a kind of improvement of the present utility model, the described gear wheel shaft body outside is electroplate with color zinc.
As further improvement of the utility model, the hardness of described gear wheel shaft body is 55-70HRB.
As further improvement of the utility model, the thickness of described nut portion is 1/14 of threaded shank.
As further improvement of the utility model, described gear wheel shaft body adopts the 08A cold-heading molding.
Be provided with the guiding chamfering as the described threaded shank of further improvement of the utility model.
The beneficial effects of the utility model are that employing dead-soft steel one cold-heading molding makes product easy to process, has saved material, has reduced cost, has improved the qualification rate of product simultaneously greatly.And the utility model is simple in structure, and is easy to process, is fit to produce in enormous quantities on a large scale, improved production efficiency.
Description of drawings
Accompanying drawing 1 is the structural representation of the utility model embodiment.
Among the figure, 1, the gear wheel shaft body; 2, through hole; 3, nut portion; 4, threaded shank; 41, guiding chamfering.
The specific embodiment
Below in conjunction with accompanying drawing the utility model embodiment is described further:
By shown in Figure 1, a kind of for the gear wheel shaft on the car belt, comprise gear wheel shaft body 1, described gear wheel shaft body 1 is provided with through hole 2, gear wheel shaft body 1 comprises nut portion 3 and threaded shank 4,3 one-tenth circular platform types of described nut portion, the thickness of described nut portion 3 is the 1/13-1/15 of threaded shank 4, and specifically, the thickness of described nut portion 3 is 1/14 of threaded shank 4, the hardness of described gear wheel shaft body 1 is 45-75HRB, specifically, the hardness of described gear wheel shaft body 1 is 55-70HRB, and described gear wheel shaft body 1 adopts dead-soft steel one cold-heading molding, specifically, described gear wheel shaft body 1 adopts 08A(08 low-carbon (LC) high-quality steel) cold-heading molding.
Described gear wheel shaft body 1 outside is electroplate with color zinc.Such structure makes that not only product is more attractive in appearance, and can prevent the product oxidation.
Described threaded shank 4 is provided with guiding chamfering 41.Such structure can make when the utility model cooperates with other products more convenient.
Every technical personnel notice: though the utility model describes according to the above-mentioned specific embodiment; but invention thought of the present utility model is not limited in this utility model; the repacking of any utilization inventive concept all will be included in this patent scope of patent protection.
Claims (6)
1. gear wheel shaft that is used on the car belt, it is characterized in that: comprise gear wheel shaft body (1), described gear wheel shaft body (1) is provided with through hole (2), gear wheel shaft body (1) comprises nut portion (3) and threaded shank (4), described nut portion (3) becomes circular platform type, the thickness of described nut portion (3) is the 1/13-1/15 of threaded shank (4), and the hardness of described gear wheel shaft body (1) is 45-75HRB, and described gear wheel shaft body (1) adopts dead-soft steel one cold-heading molding.
2. according to claim 1 a kind of for the gear wheel shaft on the car belt, it is characterized in that described gear wheel shaft body (1) outside is electroplate with color zinc.
3. according to claim 1 a kind of for the gear wheel shaft on the car belt, the hardness that it is characterized in that described gear wheel shaft body (1) is 55-70HRB.
4. according to claim 1 a kind of for the gear wheel shaft on the car belt, the thickness that it is characterized in that described nut portion (3) is 1/14 of threaded shank (4).
5. according to claim 1 a kind of for the gear wheel shaft on the car belt, it is characterized in that described gear wheel shaft body (1) adopts the 08A cold-heading molding.
6. according to claim 1 a kind of for the gear wheel shaft on the car belt, it is characterized in that described threaded shank (4) is provided with guiding chamfering (41).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320183459 CN203157920U (en) | 2013-04-12 | 2013-04-12 | Gear shaft for safety belt of automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320183459 CN203157920U (en) | 2013-04-12 | 2013-04-12 | Gear shaft for safety belt of automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203157920U true CN203157920U (en) | 2013-08-28 |
Family
ID=49019129
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320183459 Expired - Fee Related CN203157920U (en) | 2013-04-12 | 2013-04-12 | Gear shaft for safety belt of automobile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203157920U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112091549A (en) * | 2020-09-16 | 2020-12-18 | 太仓鸿瑞金属制品有限公司 | Method for forming square hole on nonstandard gear |
-
2013
- 2013-04-12 CN CN 201320183459 patent/CN203157920U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112091549A (en) * | 2020-09-16 | 2020-12-18 | 太仓鸿瑞金属制品有限公司 | Method for forming square hole on nonstandard gear |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130828 Termination date: 20150412 |
|
| EXPY | Termination of patent right or utility model |