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Safety belt retractor

A seat belt retractor and reel technology, which is applied in the direction of seat belts, belt retractors, vehicle components, etc. in the car, can solve problems such as the complex structure of the retractor, and achieve the effect of a compact and simple structure

Pending Publication Date: 2022-05-10
ZHEJIANG SONGYUAN AUTOMOTIVE SAFETY SYST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The embodiment of the present application provides a seat belt retractor to solve the problem of the complicated structure of the pre-tensioned seat belt retractor in the prior art. Preload on retractor

Method used

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Embodiment Construction

[0055] In order to enable those skilled in the art to better understand the purpose, technical solutions and advantages of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Apparently, the described embodiments are some of the embodiments of this application, not all of them.

[0056] It should be further clarified that the terms in the specification, claims and above-mentioned drawings of the present application, for example, when an element is said to be "on" another element, "connected" to another element, or "coupled" to another element, The element can be directly on the other element, connected to the other element, coupled to the other element or intervening elements may be present. In contrast, when an element is referred to as being "directly on," "directly connected to" or "direc...

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Abstract

A safety belt retractor is provided with a pre-tightening motor controlled by an electric control unit and a speed reducing mechanism connected between the pre-tightening motor and a reel unit. The speed reducing mechanism comprises a steering limiting mechanism which enables the pre-tightening motor to transmit forward rotation of the pre-tightening motor to the reel unit. The reel unit comprises a force limiting rod, the output end of the speed reducing mechanism is connected with the first end of the force limiting rod, and the reel unit obtains forward rotation torque transmitted by the speed reducing mechanism through the force limiting rod, so that pre-tightening of the retractor is achieved.

Description

technical field [0001] The present application relates to the technical field of automobile seat belts, in particular to seat belt retractors. Background technique [0002] In today's society, cars have become an indispensable means of transportation for people to travel. In order to ensure the safety of the occupants, the seat belt is an indispensable part of the occupant safety restraint system. Through the restraint of the seat belt, the protected occupant can be prevented from It hits a hard object under the action, causing irreparable damage. [0003] The seat belt retractor is the core component of the seat belt. Through the function of the seat belt retractor, the seat belt webbing can be stretched when there is no collision, and the protected occupant can adjust the sitting posture relatively freely; The belt retractor is in a locked state immediately, and the webbing strongly binds the occupant so that it is tightly bound on the seat, thereby playing a protective r...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60R22/46
CPCB60R22/46B60R2022/4666
Inventor 王晓春李艺文
Owner ZHEJIANG SONGYUAN AUTOMOTIVE SAFETY SYST CO LTD
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