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Energy Absorbing Parts and Impact Absorbing Steering Devices

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

Active Publication Date: 2016-04-06
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 Absorbing Parts and Impact Absorbing Steering Devices
  • Energy Absorbing Parts and Impact Absorbing Steering Devices
  • Energy Absorbing Parts and Impact Absorbing Steering Devices

Examples

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Effect test

no. 2 example ）

[0085] Image 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 constitu...

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Abstract

The energy absorbing member and the impact absorbing steering device of the present invention seek to gradually increase the impact load absorbed by the energy absorbing member 22b with the forward displacement of the steering wheel during the secondary collision, and further fully protect the driver. The energy absorbing member (22b) has a base (27a) provided in the central part, and a folded and bent part (29b) extending forward from both ends of the base (27a) and having a U-shaped return in the middle. For the impact absorber (28b). Among these impact absorbing parts (28b), crush processing is performed on at least the front end side of the turning and bending part (29b), so that the height of the energy absorbing member (22b) relative to the pulling part (32) increases from the turning and bending part. ( 29b ) gradually becomes higher toward the front end side of the impact absorbing portion ( 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 Patents(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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