A seat belt d ring

Abstract

The embodiment of the invention discloses a seat belt D ring, which relates to the field of automobile safety and is invented for greatly reducing the frictional force between the seat belt and the seat belt D ring. It includes: a D ring body, the D ring body is provided with a mounting hole and a strip opening, an intermediate shaft is arranged on the D ring body near the outer side of the strip opening, and the intermediate shaft is Balls are provided, and the balls protrude into the strip-shaped openings. The invention is mainly used in automobile safety belts.

Description

technical field [0001] The invention relates to the technical field of automobile safety, in particular to a safety belt D ring. Background technique [0002] In recent years, governments and automakers of various countries have paid more and more attention to car safety, especially after the launch of the China-New Car Assessment Program (C-NCAP), a good car safety star has become the first choice for domestic car manufacturers. Publicity point. Therefore, the majority of automobile companies and scientific research institutions have increased their investment in the research of automobile crash safety technology. In the process of automobile safety performance development, when the body structure data is frozen, the automobile safety performance is mainly determined by the performance of the restraint system. [0003] In order to achieve good results, seat belts with limited force function are generally used in cars now. When a car collides, under the action of the inert...

AI Technical Summary

Problems solved by technology

[0004] The inventor has found through research that the existing safety belt D ring has the following main problems in use: the friction between the safety belt D ring and the safety belt is often very large. The sharp friction between the ring and the seat belt makes the seat belt often burnt, which greatly reduces the safety factor. Another patent, such as No. 96108599.1, is named seat belt guide. The main structural feature of this patent is that the guide consists of a U-shaped Side and center pivots with low-friction bearings and rotatable rollers

However, although this structure reduces the frictional force on the guide device of the seat belt to a certain extent under normal working conditions, when a traffic accident actually occurs, the seat belt will be under the action of the occupant's inertial force, and the seat belt will not be able to move due to the frictional force. Since the shaft on the U-shaped side cannot roll, the seat belt tends to accumulate on the side, forming a large friction force. In the event of a traffic accident, the friction force between the guide device and the seat belt is still very high. Large, cannot better solve the problem of large friction between the seat belt and the seat belt D ring under various circumstances

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