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Crash energy absorbing and anti-falling structure of steering column

A steering column and anti-fall technology, which is applied to the steering column, steering mechanism, steering control, etc., to prevent falls and reduce injuries

Active Publication Date: 2021-02-02
CHERY AUTOMOBILE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to reduce the damage to the human body, the suction capacity of the steering column is required to be stable, and it is difficult for the traditional collapse structure to meet this requirement

Method used

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  • Crash energy absorbing and anti-falling structure of steering column
  • Crash energy absorbing and anti-falling structure of steering column
  • Crash energy absorbing and anti-falling structure of steering column

Examples

Experimental program
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Effect test

Embodiment 1

[0033] Such as figure 1 , 2 , 3, 4, 5, and 6, the steering column 1 includes the upper column tube 2, the mounting bracket 3, the lower column tube 4 and the clamping block 5, the upper and lower column tubes adopt transition fit, and the sliding force is controlled within 100N , the effect on collapse can be ignored. The mounting bracket 3 is fixedly connected to the instrument beam assembly of the vehicle body by bolts, and can be regarded as being fixed with the vehicle body; at the same time, the mounting bracket 3 is covered on the upper column tube 2; the clamping block 5 is welded to the lower end of the upper column tube 2 and Opposite to the position of the mounting bracket 3, symmetrical sliding grooves 51 are provided on both sides of the clamping block 5 along the axial direction of the upper column tube 2. The front end of the sliding groove 51 is provided with an extension groove 52, and a breakable type is arranged in the extension groove 52. The steel belt 53...

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Abstract

The invention provides a crash energy absorbing and anti-falling structure of a steering column. The structure comprises a mounting bracket which is fixed on a vehicle body and covers an upper columnpipe, and a clamping block which is fixed on the upper column pipe and is opposite to the position of the mounting bracket, symmetrical sliding grooves are formed in the two sides of the clamping block in the axial direction of the upper column pipe, a handle shaft transversely penetrating through the sliding grooves is arranged on the mounting bracket, extending grooves are formed in the front ends of the sliding grooves, and breakable steel belts are arranged in the extending grooves respectively. The end, facing the sliding groove, of each steel belt is a wedge-shaped end; and a wedge-shaped block matched with the wedge-shaped end is convexly arranged on the handle shaft. The crash peak force and the continuous force of the steering column can be well controlled through the breakable steel belts, stable energy absorption is achieved, and harm to a driver during collision is reduced; and the handle shaft of the mounting bracket fixed on the vehicle body transversely penetrates through the sliding groove of the clamping block, and the steel belts can be collapsed and deformed along the extending grooves after collision, so that the steering column can be effectively prevented fromfalling, and the steering column is ensured to still have steering capacity after collapsing.

Description

technical field [0001] The invention relates to the technical field of automobile collision safety, in particular to a collapse energy-absorbing and fall-preventing structure arranged on a steering column to reduce the secondary damage value of a steering wheel to a human body after a vehicle collision occurs. Background technique [0002] With the rapid development of automobile technology, safety regulations have higher and higher requirements for automobile safety, and four-way adjustable and collapsible steering columns have become popular in passenger cars. The traditional collapse energy-absorbing steering column adopts the interference fit of the riveting points of the upper and lower column tubes, the injection molding structure of the pull-off block of the mounting bracket, or the structure of the pull-off block and the energy-absorbing steel belt. This kind of structure has very high requirements on the matching precision of the upper and lower column tubes, and th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B62D1/19
CPCB62D1/195
Inventor 史红亮肖俊华陶薛磊
Owner CHERY AUTOMOBILE CO LTD
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