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Telescopic steering device and outer column

A steering device, telescopic technology, applied in steering control, steering mechanism, transportation and packaging, etc., can solve the problem of increasing the weight of the steering column, and achieve the effect of improving the support rigidity, ensuring the durability, and realizing the feeling of operation.

Active Publication Date: 2015-11-04
NSK LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, it is conceivable to increase the thickness of the outer column 11a or to manufacture the outer column 11a from an iron-based material, but in this case, problems such as an increase in the weight of the entire steering column arise.

Method used

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  • Telescopic steering device and outer column
  • Telescopic steering device and outer column
  • Telescopic steering device and outer column

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0049] [First example of embodiment]

[0050] Figure 1 to Figure 15 The first example of the embodiment of the present invention is shown. This example is characterized by a structure that ensures sufficient strength even when an anti-theft key lock system is incorporated, and is used to enable the front and rear positions of the steering wheel to be adjusted or The work of maintaining the adjusted position is performed smoothly. The structures, functions, and effects of other parts, including the structure of the electric power steering device, are the same as those of the conventional structure. Therefore, the following description will focus on the characteristic parts of this example.

[0051] The telescopic steering device of this example includes a steering column 2a, a steering shaft 3a, a support bracket 17a, an adjustment lever 24a as a rod-shaped member, and a cam device 29 as an adjustment mechanism. The steering column 2a is composed of an inner column 10a and...

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PUM

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Abstract

Construction of an outer column for a telescopic steering apparatus is achieved in which sufficient strength is maintained even when a steering lock apparatus is assembled, and smooth operation is maintained when making it possible to adjust the forward / backward position of a steering wheel, and when maintaining the adjusted position. Of the end sections 58a, 58b, 59a, 59b of the sub slit sections 52a, 52b of an approximately H-shaped slit 19a for expanding or contracting the inner diameter of a fitting support portion 31a of an outer column 11b, the rigidity of the nearest end section 58a portion that exists in the location closest to a lock through hole 37a and of the furthest end section 59a portion that exists in a location diagonally from the nearest end section 58a, is greater than the rigidity of the end sections 58b, 59b in the remaining two locations. Moreover, convex sections 61a, 61b are provided at two locations in the up / down direction on the outside surfaces of each of a pair of held plate sections 20a, 20b.

Description

technical field [0001] The present invention relates to a telescopic steering device capable of adjusting the front-rear position of a steering wheel, and an outer column used in the telescopic steering device. Background technique [0002] In order to impart steering angles to the steered wheels (usually the front wheels) of motor vehicles, widely used Figure 18 Steering gear shown. In this steering device, a steering shaft 3 is rotatably supported on the inner diameter side of a cylindrical steering column 2 supported by a vehicle body 1 . A steering wheel 4 is fixed to a rear end portion of the steering shaft 3 protruding rearward beyond the rear end opening of the steering column 2 . The rotation of the steering wheel 4 is transmitted to the input shaft 8 of the steering gear unit 7 via the steering shaft 3 , the universal joint 5 a , the intermediate shaft 6 , and the universal joint 5 b. The rotation of the input shaft 8 pushes and pulls a pair of tie rods 9 dispose...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B62D1/184B60R25/021B62D1/189
CPCB62D1/185B22D17/00B22D19/045B22D19/16B60R25/021B62D1/184
Inventor 长泽诚杉下杰真庭高广
Owner NSK LTD
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