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Locking mechanism and safety belt retractor

A locking mechanism and locking block technology, which are applied in the directions of seat belts, belt tensioners, transportation and packaging in the car, can solve the problems of high vibration and noise, reduce vibration and noise, and realize one-way rotation locking. Function and stability improvement effect

Pending Publication Date: 2020-05-29
SHENYANG JINBEI JINHENG AUTOMOBILE SAFETY SYST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Therefore, the present invention provides a locking mechanism to solve the problem of high vibration and noise during the use of the clutch assembly of the seat belt retractor in the prior art

Method used

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  • Locking mechanism and safety belt retractor
  • Locking mechanism and safety belt retractor
  • Locking mechanism and safety belt retractor

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Embodiment Construction

[0053] According to an embodiment of the present invention, a motor-driven safety belt retractor is provided, such as Figure 1 to Figure 34 As shown, it includes an electric motor 600, a reduction mechanism assembly 200, a main gear 900, a clutch assembly 300 and a spindle assembly 500, wherein the output end of the electric motor 600 is connected to the reduction mechanism assembly 200, and the output end of the reduction mechanism assembly 200 is connected to the main The gear 900 is meshed and connected, the main gear 900 is connected with the mandrel assembly 500 through the clutch assembly 300, and the mandrel assembly 500 is driven to rotate by the motor 600; wherein, the output end of the motor 600 is provided with a driving gear 601, and the reduction mechanism assembly 200 adopts a planetary The frame gear structure or the eccentric swing gear structure, the motor 600 is decelerated by the reduction mechanism assembly 200, and the motion is transmitted to the main gea...

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Abstract

The invention discloses a locking mechanism and a safety belt retractor, at least one locking block is arranged between a main gear and a clutch fixing piece, at least one track groove is formed in the main gear and located in the bottom face of a guide cavity, and the track grooves and the locking blocks are the same in number and are arranged in a one-to-one correspondence mode; one end of the locking block is rotationally connected with a clutch fixing piece, the other end of the locking block is connected into the track groove in a sliding mode, and the periphery side of a transmission wheel is sleeved with a combined body of the main gear and the clutch fixing piece, when the main gear rotates forwards relative to the clutch fixing piece, the locking block slides in the track groove to be in contact engagement with the transmission wheel; and when the main gear rotates reversely relative to the clutch fixing piece, the locking block slides in the track groove to be out of contactwith the transmission wheel. The clutch assembly aims at solving the problem that in the prior art, a clutch assembly of a safety belt retractor is large in vibration noise in the using process. The locking mechanism has the effects that the vibration noise generated by the locking mechanism is remarkably reduced, and the stability of the locking mechanism in the operation process is remarkably improved.

Description

technical field [0001] The invention relates to the technical field of vehicle safety belts, in particular to a locking mechanism, and also to a safety belt retractor. Background technique [0002] The existing seat belt retractor can provide protection for the driver before a collision, and the active seat belt retractor driven by a motor can drive the seat belt retractor to retract a certain amount of safety protection before the vehicle may collide. belt to protect the driver. [0003] The electric motor of the seat belt retractor has a small output torque. The existing clutch used for the seat belt retractor is mainly a gear clutch. This clutch has a large clutch delay during use, and the internal and external teeth do not have synchronization. And the problem of high impact vibration noise; lack of a clutch locking mechanism with low vibration noise, simple structure and good stability. Contents of the invention [0004] Therefore, the present invention provides a l...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60R22/46
CPCB60R22/46B60R22/4671B60R2022/468B60R2022/4666
Inventor 胡晏殊陈俊海宫良杰卢绍钧张鑫黄来国李明阳刘彦广
Owner SHENYANG JINBEI JINHENG AUTOMOBILE SAFETY SYST CO LTD
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