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Motor vehicle steering device

A technology for vehicles and steering systems, applied to steering columns, steering controls mounted on vehicles, mechanical equipment, etc., can solve the problems of click and impact noise and the level of sliding resistance cannot meet the standard value, and achieve low cost Effect

Inactive Publication Date: 2006-07-19
NSK LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0018] In addition, also with the related art described in JP-A-2000-9148, there are cases where, due to product errors and depending on the type of vehicle on which the telescopic shaft is installed, the level of rattling and impact noise and sliding resistance cannot satisfy Standard value, when this happens, when using the telescopic shaft disclosed in JP-A-2000-9148, in order to further reduce the fit clearance, the external spline and internal spline adopt optional fit

Method used

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  • Motor vehicle steering device
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Examples

Experimental program
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Effect test

no. 1 example

[0047] figure 1 It is an explanatory diagram showing the whole of the vehicle steering mechanism to which the present invention is applied. This figure shows a portion including the body-side steering mechanism 6 and its upward direction. The steering column tube 52 is fixed to the vehicle body 91 in such a manner that the inclination angle of the steering column tube 52 can be adjusted by adjusting the lever 522 . The steering column tube 52 rotatably supports a wheel shaft 521 passing therethrough, and the steering wheel 51 is fixed to an upper end of the wheel shaft 521 . The coupling system 1 is connected to the other end of the wheel shaft 521 or to the lower end side of the steering column tube 52 .

[0048] The coupling system 1 includes a constant velocity ball joint 2 arranged at its upper end, a cross shaft type universal joint 4 arranged at its lower end, and an intermediate shaft 3 arranged in the middle part therebetween for connecting the thus arranged universa...

no. 2 example

[0060] image 3 is a partial sectional view illustrating the coupling system 1 of the second embodiment. Hereinafter, only the points different from the first embodiment will be described, and other places and image 3 The description of the sectional view made by the line B-B, C-C can refer to the description of the first embodiment. These differ in that the intermediate shaft 3 consists of a partial shaft divided into two halves, the upper intermediate shaft 31 associated with the inner joint part 22 and the lower half associated with the cross joint 4 The intermediate shaft 32, and external splines 311 are formed on the upper intermediate shaft 31, and internal splines suitable for fitting on the external splines 311 are formed on the lower intermediate shaft 32.

[0061] The intermediate shaft 3 allows telescoping so that only rotation is transmitted through this splined connection. The telescoping property of the intermediate shaft 3 realizes a structure in which the p...

no. 3 example

[0066] Figure 4 It is an explanatory diagram showing the whole of the vehicle steering mechanism to which the present invention is applied. This figure shows a portion including the body-side steering mechanism 6 and its upward direction. The steering column tube 52 is fixed to the vehicle body 91 in such a manner that the inclination angle of the steering column tube 52 can be adjusted by adjusting the lever 522 . A wheel shaft 521 passing through the inside of the steering column tube is rotatably supported in the steering column tube 52 , and the steering wheel 51 is fixed at an upper end of the wheel shaft 521 . The intermediate shaft system 1 is connected to the other end of the wheel shaft 521 or to the lower end side of the steering column tube 52 .

[0067] The intermediate shaft system 1 includes constant velocity spherical joints 2, 4 at its upper and lower ends, and an intermediate shaft 3 connecting these joints to each other at an intermediate portion therebetw...

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PUM

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Abstract

A shaft coupling device for a motor vehicle steering device, comprising an input shaft for transmitting rotation from a steering wheel, an intermediate shaft, an output shaft for driving a steering mechanism on the motor vehicle side, a constant velocity universal joint, and a cross shaft universal joint, wherein the input shaft and the intermediate shaft are connected by either of the constant velocity universal joint and the cross shaft universal joint, and the intermediate shaft and the output shaft are connected by the other joint.

Description

technical field [0001] The present invention relates to a coupling system or intermediate shaft system that can be used to transmit rotation between two shafts oriented in different directions, and more particularly, the present invention relates to a coupling system or intermediate shaft system for a vehicle steering system intermediate shaft system. Background technique [0002] A gimbal system is used to transfer rotation or energy between two axes that are not in line. Cross shaft universal joints, which are also referred to as Cardan joints, hook joints and cross joints, can connect two shafts to each other via a cross member having four crossed shaft parts, and these shaft parts are such that That is, two pairs of opposing shaft portions are supported by yokes connected to their respective shafts. [0003] The constant velocity ball joint is such that torque transmission balls are placed in guide grooves respectively formed on the inner surface of the outer joint mem...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B62D1/20F16D3/22F16D3/38
Inventor 关根博
Owner NSK LTD
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