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Method for preventing clamping stagnation and accumulation of vehicle safety belt at D ring

A seat belt and D-ring technology, applied in geometric CAD, electrical digital data processing, special data processing applications, etc., can solve problems such as seat belt function failure, seat belt jamming, cutting, etc., to reduce layout risks and improve stacking and stuck, the effect of shortening the development cycle

Active Publication Date: 2021-09-17
JIANGLING MOTORS
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the actual design process, it is found that when the above relationship matching exceeds a certain range, the seat belt will be stuck at the D ring and cannot slide along the D ring normally, resulting in the failure of some functions of the seat belt or even cutting off the phenomenon.

Method used

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  • Method for preventing clamping stagnation and accumulation of vehicle safety belt at D ring
  • Method for preventing clamping stagnation and accumulation of vehicle safety belt at D ring
  • Method for preventing clamping stagnation and accumulation of vehicle safety belt at D ring

Examples

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Embodiment 1

[0030] Example 1: Reference Figure 1-2 .

[0031] A method for preventing vehicle seat belts from being stuck and accumulated at the D ring,

[0032] Need to satisfy the formula

[0033] where μ 1 is the circumferential friction coefficient between the webbing and the D ring, that is, the friction coefficient between the seat belt and the surface of the D ring when the seat belt is pulled out normally, μ 2 is the axial friction coefficient between the webbing belt and the D ring, that is, the friction coefficient of the seat belt sliding back and forth relative to the D ring; α is the angle between the two webbing belts in the XZ plane, and β is the wrap angle between the webbing belt and the D ring.

[0034] The detailed design method is as follows:

[0035] The main purpose of the present invention is to provide a design method for the arrangement of key points of the seat belt, to ensure that the seat belt can pass through the D ring normally, and to avoid failure or...

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Abstract

The invention relates to a design theory and an evaluation method used for performance evaluation in a product design stage, and belongs to the field of automobile design. In particular to a method for preventing clamping stagnation and accumulation of vehicle safety belt at D ring, which needs to satisfy the formula, in which mu1 is the circumferential friction coefficient of a braid and the D ring, mu2 is the axial friction coefficient of the braid and the D ring, alpha is the included angle alpha of two braids in an XZ plane, and beta is the wrap angle of the braid and the D ring. By reasonably matching the key angles alpha and beta on the safety belt path and the friction coefficient at the D ring, the problems of accumulation and clamping stagnation at the D ring position of the safety belt in the vehicle collision process can be greatly solved, and a guarantee is provided for the safety of passengers.

Description

technical field [0001] The invention relates to a design theory and evaluation method, which are used for performance evaluation in the product design stage, and belong to the field of automobile design. Specifically, it relates to a method for preventing vehicle seat belts from being stuck and accumulated at the D ring. Background technique [0002] The seat belt is an important component of the car safety restraint system, usually consisting of a retractor, a D ring, a seat belt and its fixing points. Its function is to keep the occupant in the correct sitting posture and restrain the occupant's movement through the seat belt during the car collision, thereby reducing the occupant's injury. This requires the seat belt to cooperate with the seat R point, the seat belt fixed point and the D ring position and other components that directly affect the wearing posture of the seat belt during the design process, so that it can achieve the best stress state, thereby protecting th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F30/15G06F30/17G06F119/14
CPCG06F30/15G06F30/17G06F2119/14Y02T90/00
Inventor 侯聚英王喜军谢金萍段龙杨邬杰
Owner JIANGLING MOTORS
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