Crumple type steering column and automobile

A technology of steering column and column, which is applied in the direction of steering column, steering control, steering mechanism, etc., which can solve the problems of not fully exerting the energy absorption potential of column collapse and collision, and achieve the effect of extending time and ensuring safety

Inactive Publication Date: 2018-08-17
BEIJING CHANGAN AUTOMOBILE ENG TECH RES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This type of design is a single-stage energy-absorbing structure, which does not fully utilize the potential for absorbing collision energy when the pipe string collapses

Method used

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  • Crumple type steering column and automobile
  • Crumple type steering column and automobile
  • Crumple type steering column and automobile

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Embodiment Construction

[0021] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0022] Please refer to image 3 and Figure 4 , image 3 It is a structural schematic diagram of the pipe string outer sleeve in a specific embodiment of the present invention; Figure 4 It is a schematic diagram of the assembly of the column outer sleeve on the steering column assembly in a specific embodiment of the present invention.

[0023] In a specific embodiment, the present invention provides a collapsible steering column, which includes a column o...

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PUM

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Abstract

The invention discloses a crumple type steering column. The crumple type steering column comprises a column external sleeve; the wall of the column external sleeve comprises a straight sleeve part anda cage part; and the cage part is a hollowed-out structure which is distributed in the circumferential direction of the column external sleeve. The hollowed-out cage part can guarantee the torsionalrigidity of the column external sleeve and can appropriately reduce the axial strength of the column external sleeve; and moreover, the collision energy can be further absorbed to realize a purpose ofsecondary crumpling energy absorption of the column. When an automobile comes into a collision, the energy absorption in the first stage can be realized by using the existing injection-molded shearing block structure; when the column external sleeve moves down to an extreme position, the cage part can be further crumpled in the axial direction and absorb energy under an effect of collision forceso that two-stage energy absorption is realized; and therefore, the acting time of the collision force on a human body is prolonged and the safety of a driver is guaranteed. The invention further discloses an automobile including the crumple type steering column

Description

technical field [0001] The invention relates to the technical field of automobile steering systems, in particular to a collapsible steering column and an automobile. Background technique [0002] When a car collides, in order to absorb part of the collision energy, an injection-molded shear block is generally fixed on the steering column mounting bracket, see figure 1 and figure 2 In the prior art, the injection molding shear block 03 is fixedly connected to the pipe string mounting bracket 01 through the injection molding process, the pipe string mounting bracket 01 is welded together with the pipe string outer sleeve 02, and the center of the injection molding shear block 03 has a long hole , and the mounting bolts pass through the elongated holes to connect the column assembly with the instrument panel beam bracket. When the car collides, the injection molding shear block 03 remains fixed, and the column mounting bracket 01 and the column outer sleeve 02 move down rela...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B62D1/19
CPCB62D1/192
Inventor 马亚男
Owner BEIJING CHANGAN AUTOMOBILE ENG TECH RES
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