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Torsion bar for safety belt retractor, safety belt retractor and safety 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, safe and stable use process and cost saving.

Inactive Publication Date: 2013-02-13
和励科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
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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 safety belt retractor, safety belt retractor and safety belt assembly
  • Torsion bar for safety belt retractor, safety belt retractor and safety belt assembly
  • Torsion bar for safety belt retractor, safety belt retractor and safety belt assembly

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Embodiment Construction

[0038] In the following description, numerous specific details are set forth in order to provide a thorough understanding of 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 extensions without violating the connotation of the present invention, so the present invention is not limited by the specific implementations disclosed below.

[0039] Please refer to Figure 5, which is a structural schematic diagram of the torsion bar of the present invention. In this embodiment, the torsion bar 3 is rod-shaped, and its two ends and the middle part are provided with external teeth 3-2a and external teeth 3-2b along the circumferential direction. And the outer teeth located at the two ends of the torsion bar 3 are matched with the inner teeth of the central concave hole on the end faces of the two end caps on the retractor, and the circumferential outer teeth loc...

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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 for 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. When the vehicle collides, the seat belt can protect the user from or reduce secondary injuries during the collision. [0003] The standard three-point safety belt originally designed for use in car seats only includes a locking mechanism and webbing for securing the user (human body). When the vehicle collides, the locking mechanism is locked, and the webbing is no longer stretched outward, thereby binding the user to the car seat. However, due to the rapid change of speed at the moment of collision, the momentum change time caused by the speed change during collision is very short, so that the force of the webbing acting on the user is very l...

Claims

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Application Information

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IPC IPC(8): B60R22/34
Inventor 刘学军
Owner 和励科技有限公司
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