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Safety belt coiler pretightening mechanism

A technology of seat belt retractor and pre-tensioning mechanism, which is applied in the direction of vehicle seat belts, belt retractors, transportation and packaging, etc., can solve the problems of complex structure, high manufacturing cost, slow response speed, etc., and achieve simple structure Compact, easy to use, and improved preload efficiency

Pending Publication Date: 2018-03-06
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

At present, the retractors on the market generally use the reverse rotation of the preload motor to pull the mandrel back, preload the seat belt, and the reaction speed is slow, and the volume is large, the structure is complicated, and the manufacturing cost is high.

Method used

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  • Safety belt coiler pretightening mechanism
  • Safety belt coiler pretightening mechanism
  • Safety belt coiler pretightening mechanism

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] see Figure 1-Figure 5 As shown, the present invention provides a seat belt retractor pretensioning mechanism, including a special-shaped guide tube 1, a glue stick 2, a cover body 5 and a turbine 3, and the special-shaped guide tube 1 extends to the inside of the cover body 5 and Fixed installation, the special-shaped guide tube 1 is convenient to improve the compactness of the pre-tensioning mechanism, saves space, can be set according to space requirements, and is convenient to use; the turbine 3 is matched with the mandrel 4 and the turbine 3 is arranged on the cover 5 Inside, the mandrel 4 rotates synchronously with the turbine 3; the glue stick 2 extends between the cover 5 and the turbine 3 along the special-shaped guide pipe 1, and the glue stick 2 drives the The turbine 3 and the mandrel 4 pre-tighten the seat belt, the glue stick 2 is squeezed and deformed by the cover 5 and the turbine 3, and the deformed part cooperates with the turbine 3 to drive the turbin...

Embodiment 2

[0041] see Figure 6 As shown, the difference from the first embodiment is that a ratchet is provided on one side of the hemispherical groove, and the glue stick 2 can be clamped by using the ratchet to improve stability.

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Abstract

The invention discloses a safety belt coiler pretightening mechanism. The safety belt coiler pretightening mechanism comprises a special-shaped guide tube, a rubber stick, a cover and a turbo. The special-shaped guide tube extends to the inner side of the cover to be mounted fixedly. The turbo is matched with a mandrel, and is arranged on the inner side of the cover. The rubber stick extends intothe space between the cover and the turbo along the special-shaped guide tube, and drives the turbo and the mandrel to pretighten a safety belt. The safety belt coiler pretightening mechanism has theadvantages that the structure of the rubber stick and the special-shaped guide tube is adopted, the rubber stick can drive the turbo along the special-shaped guide tube and the cover rapidly through compressional deformation in case of emergency, and the mandrel is rotated to pull back and pretighten the safety belt; the safety belt coiler pretightening mechanism is simple and compact in structureand convenient to use, and pretightening efficiency is improved effectively.

Description

technical field [0001] The invention relates to the design field of a retractor pretension mechanism, in particular to a safety belt retractor pretension mechanism. Background technique [0002] The retractor is the core component of the car seat belt. When the car encounters an emergency, the space for people to move and buffer is quite small. At this time, it is necessary to consider firmly fixing the person on the seat first, and then pass The force limiting device minimizes his injuries. The pre-tensioning device ignites the gas generator within a few milliseconds through the collision sensor, and pushes the pull-back device to pull back the webbing, binding the person to the seat. The retractors currently on the market generally use the reverse rotation of the preload motor to pull the mandrel back and preload the safety belt, which has a slow response speed, large volume, complex structure, and high manufacturing cost. Contents of the invention [0003] The purpose...

Claims

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Application Information

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IPC IPC(8): B60R22/46
CPCB60R22/46B60R22/4628B60R2022/4642
Inventor 胡晏殊李明阳陈俊海胡大为关俊峰
Owner SHENYANG JINBEI JINHENG AUTOMOBILE SAFETY SYST CO LTD
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