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Torsion bar for seat belt retractor and seat belt retractor, seat belt assembly

The technology of a seat belt retractor and a torsion bar is applied in the field of seat belts and achieves the effects of high manufacturing requirements, reduced manufacturing difficulty, and safe and stable use process.

Inactive Publication Date: 2015-10-07
和励科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] The present invention provides a torsion bar for a seat belt to solve the above-mentioned problems of the torsion bar of the existing seat belt retractor

Method used

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  • Torsion bar for seat belt retractor and seat belt retractor, seat belt assembly
  • Torsion bar for seat belt retractor and seat belt retractor, seat belt assembly
  • Torsion bar for seat belt retractor and seat belt retractor, seat belt assembly

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Embodiment Construction

[0038] In the following description, many specific details are explained in order to fully understand the present invention. However, the present invention can be implemented in many other ways different from those described here, and those skilled in the art can make similar popularizations without violating the connotation of the present invention. Therefore, the present invention is not limited by the specific implementation disclosed below.

[0039] Please refer to Figure 5 , Which is a schematic diagram of the structure of the torsion bar of the present invention. In this embodiment, the torsion rod 3 is in the shape of a rod, with external teeth 3-2a and external teeth 3-2b provided at both ends and the middle part in the circumferential direction. And the external teeth located at the two ends of the torsion bar 3 are matched with the internal teeth of the central recessed holes on the end faces of the two ends of the retractor, and the peripheral teeth located in the mid...

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Abstract

The invention provides a torsion bar for a safety belt retractor. The torsion bar is rod-like, peripheral outer teeth are arranged at two ends and in the middle of the torsion bar, the outer teeth at the two ends of the torsion bar are matched with inner teeth of central concave holes in the end faces of two end covers on the retractor, and the peripheral outer teeth in the middle of the torsion bar are matched with inner teeth on the middle section of a through hole in the middle axis of a core shaft; and the axial length of the torsion bar is not greater than that of a scroll. The torsion bar is shortened, so that bending deformation of the torsion bar is avoided, the torsion bar is not subjected to other restraint outside the end covers on the two sides, the overall stress condition of the torsion bar is simplified, and the torsion bar is safe and stable in use. The invention simultaneously provides the safety belt retractor using the torsion bar and a safety belt assembly.

Description

Technical field [0001] The invention relates to safety belt technology, in particular to a torsion bar used in a safety belt retractor. The invention also relates to a seat belt retractor and a seat belt assembly using the torsion bar. Background technique [0002] Seat belts are important passive safety components used in automobiles. In the event of a vehicle collision, the seat belt can protect the user from or reduce the secondary injury during the collision. [0003] The standard three-point safety belt that was originally designed to be applied to car seats only includes a locking mechanism and a webbing for fixing the user (human body). In the event of a vehicle collision, the locking mechanism is locked and the webbing is no longer stretched outwards, thus binding the user to the car seat. However, due to the rapid speed change at the moment of the collision, the momentum change time caused by the speed change at the time of the collision is very short, so that the force...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60R22/34
Inventor 刘学军
Owner 和励科技有限公司
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