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Steering wheel position adjustment device

A technology of adjusting device and steering wheel, which is applied to steering mechanism, steering control, transportation and packaging, etc., can solve the problems of difficulty in ensuring the contact area of ​​the displacement bracket 16 to a large extent, and it is difficult to fully improve the supporting rigidity of the displacement bracket 16, so as to improve the support Rigidity, the effect of securing the contact area

Active Publication Date: 2020-03-27
NSK LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, it is difficult to ensure a large contact area between the outer surface of the displacement bracket 16 and the inner surface of the support plate portion 19, and it is difficult to sufficiently increase the support rigidity of the displacement bracket 16 with respect to the support bracket 17.

Method used

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  • Steering wheel position adjustment device
  • Steering wheel position adjustment device
  • Steering wheel position adjustment device

Examples

Experimental program
Comparison scheme
Effect test

no. 1 Embodiment approach

[0101] refer to Figure 1-7 The first embodiment of the present invention will be described. In the steering device of this embodiment, the steering wheel 4 is fixed to the rear end (refer to Figure 12 ) is rotatably supported inside a cylindrical steering column 2a. The steering column 2a is supported at its middle portion with respect to a support bracket 17a. The support bracket 17a is supported relative to the vehicle body 1 (refer to Figure 12 ), it is possible to escape forward by utilizing the secondary collision accompanying the collision accident. A gear housing 25 for an electric power steering device (refer to Figure 12 ). The gear case 25 is supported by the pivot shaft 11 (refer to Figure 12 ) as the center shakes and shifts, and constitutes an inclination mechanism capable of adjusting the up and down positions of the steering wheel 4. Furthermore, in the case of the present embodiment, a telescopic mechanism for adjusting the front-rear position of the st...

no. 2 Embodiment approach

[0117] refer to Figure 8 A second embodiment of the present invention will be described. In the case of the present embodiment, in the front-rear direction both sides of the support plate portion 19b sandwiching the fixed-side through-hole 20a, a free state is formed, which is more oriented in the width direction than the portion where the fixed-side through-hole 20a is formed. Strip-shaped protrusions 31c and 31d protruding (shifted) inside. Particularly in the case of the present embodiment, the tip surfaces of the two protrusions 31c and 31d have a convex cross-sectional shape protruding inward in the width direction.

[0118] In the case of the present embodiment having such a configuration, as Figure 8 As shown in (A), when changing from the non-clamped state to the clamped state, the inner surface of the support plate portion 19b has the protrusions 31c, 31d located on both sides in the front-rear direction sandwiching the back surface 24a of the pressed portion. Th...

no. 3 Embodiment approach

[0122] refer to Figure 9 A third embodiment of the present invention will be described. In the case of this embodiment, instead of forming a pair of protrusions on the support plate portion 19c as in the first and second embodiments described above, the middle portion in the front-rear direction ( The portion where the fixed-side through hole 20a is formed) is curved to protrude widthwise outward compared to the front-rear direction both sides, and curved portions 37, 37 are provided on the front-rear direction both ends to bend widthwise outward.

[0123] In the case of the present embodiment having such a configuration, as Figure 9 As shown in (A), when changing from the non-clamped state to the clamped state, the bases of the curved portions 37, 37 located on both sides in the front-rear direction across the inner surface of the support plate portion 19c sandwich the back surface 24a of the pressed portion. The inner surface of the end portion first presses the outer su...

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Abstract

In a steering wheel position adjusting device, an inner side surface of a support plate part (19a) includes a pair of protrusion parts (31a, 31b), which are positioned on both sides of the pressed-part back surfaces (24a) in a front-rear direction and interpose the pressed-part back surfaces (24a), the pressed-part back surface (24a) is positioned on a back side of a portion where the outer side surface of the support plate part (19) is pressed by a driven-side cam (35) , and only tip end surfaces of the protrusion parts (31a, 31b) are changed from an unclamped state to a clamped state. In clamped state, the tip end surfaces of the protrusion parts (31a, 31b) and the pressed-part back surfaces (24a) are pressed against an outer side surface of a displacement bracket (16a).

Description

technical field [0001] The present invention relates to an improvement of a steering wheel position adjusting device for adjusting the position of the steering wheel according to the physique and driving posture of the driver. Background technique [0002] As a steering device for automobiles, widely known such as Figure 12 construction shown. In this steering device, a steering shaft 3 is rotatably supported on the inner diameter side of a cylindrical steering column 2 supported on a vehicle body 1 . Furthermore, a steering wheel 4 is fixed to a rear end portion of a steering shaft 3 protruding rearward from a rear end opening of the steering column 2 . When the steering wheel 4 is rotated, the rotation is transmitted to the input shaft 8 of the steering gear unit 7 via the steering shaft 3, the free joint 5a, the intermediate shaft 6, and the free joint 5b. When the input shaft 8 rotates, a pair of tie rods 9, 9 arranged on both sides of the steering gear unit 7 are pus...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B62D1/184B62D1/187B62D1/189
CPCB62D1/184B62D1/189B62D1/195B62D5/0403
Inventor 黑川祥史
Owner NSK LTD