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Energy absorption member and shock absorption steering device

A technology of energy absorption and impact absorption, applied in steering column, steering control, steering mechanism, etc., can solve the problems of high wire cost, high cost, and difficult setting

Active Publication Date: 2013-04-17
NSK LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the case of the invention described in Japanese Patent Application Laid-Open No. 2001-114113, since a metal plate is used, the cost is increased compared with the case of using a metal wire.
Moreover, in the case of the inventions described in Japanese Patent Application Laid-Open No. 2008-230266 and Japanese Patent Laid-Open No. 2007-302012, it is difficult to set the conditions for heat treatment (fire exposure), which is not only costly, but also makes it difficult to obtain stable performance
Furthermore, in the case of a structure in which only the cross-sectional area is changed, the cost of the wire is high

Method used

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  • Energy absorption member and shock absorption steering device
  • Energy absorption member and shock absorption steering device
  • Energy absorption member and shock absorption steering device

Examples

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no. 2 example ）

[0085] Figure 6 A second example of the embodiment of the present invention is shown. In the case of this example, the energy absorbing member 22c is formed by bending a metal wire having a rectangular cross-sectional shape. Of the pair of impact absorbing portions 28c, crush processing is performed on the portion from the folded and bent portion 29c provided in the middle portion to the front end edge (rear end edge), and the pulling portion 32a (refer to figure 2 ) gradually becomes higher toward the front end edge (rear end edge) of the impact absorbing portion 28c. The structures and functions of other parts are the same as those in the first example of the embodiment.

[0086] (Third example of embodiment)

[0087] Figure 7 A third example of the embodiment of the present invention is shown. In this example, a pair of energy absorbing members 22d and 22e having different sizes are attached to the left and right end portions of the mounting plate portion 14 constit...

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Abstract

To further protect a driver in a secondary collision by gradually increasing the impact load absorbed by an energy absorption member (22b) to be equivalent to the frontward displacement of a steering wheel. The energy absorption member (22b) comprises: a base part (27a) disposed in a middle section; and a pair of impact absorption parts (28b) which extend forward from both ends of the base part (27a) and comprise a folded curved part (29b) that is folded in a U shape in the middle section. By crushing being carried out further toward the tip end side of the impact absorption parts (28b) than at least the folded curved part (29b), the height of the energy absorption member (22b) with respect to a handling part (32) gradually increases from the folded curved part (29b) toward the tip end side of the impact absorption parts (28b).

Description

technical field [0001] The present invention relates to an impact-absorbing steering device for alleviating the impact on the driver's body during a secondary collision in which the driver's body collides with a steering wheel following a collision accident, and to an impact-absorbing steering device incorporated in the impact-absorbing steering device , An energy absorbing component that is used to absorb the impact load and produce plastic deformation in the event of a secondary impact to form part of the impact mitigation function. Background technique [0002] Figure 19 An example of a conventional structure of a steering device for an automobile is shown. The steering device transmits the rotation of the steering wheel 1 to the input shaft 3 of the steering gear unit 2, and pushes and pulls a pair of left and right tie rods 4 as the input shaft 3 rotates, thereby imparting a steering angle to the input shaft. The steering wheel 1 is supported and fixed to a rear end p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B62D1/19B60R21/05
CPCF16F7/128B62D1/195
Inventor 森山诚一柴崎弘藤川谦司渡边将司郎高桥彻
Owner NSK LTD
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