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Adjustable steering column with improved stiffness

A technology of steering column and steering shaft, which is applied in the direction of steering mechanism, steering control, vehicle components, etc., which can solve the problem of no positive influence of steering column displacement force or holding force, and achieve good displacement effect

Active Publication Date: 2019-10-22
THYSSENKRUPP PRESTA AG +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] Steering columns known in the prior art have no positive influence on either displacement or holding forces

Method used

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  • Adjustable steering column with improved stiffness
  • Adjustable steering column with improved stiffness
  • Adjustable steering column with improved stiffness

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0037] figure 1 It is schematically shown that during the adjustment of the steering column 4 and in the event of a collision or in the locked state of the steering column 4, frictional forces act on the guide box 1 and the guide box 1 displaceably mounted along the longitudinal axis 2. between the guides 3 in the box 1. A displacement force F1 is applied by the driver to the steering wheel to adjust the steering column 4 along the longitudinal axis 2 with the steering column 4 in the unlocked state. The displacement force F1 acts at an acute angle to the longitudinal axis 2 . An angle of approximately 45 degrees is shown here by way of example. The displacement force F1 generates two opposing forces F4 and F2 which act normal to the longitudinal axis 2 and press the guide 3 against the guide box 1 at the contact surface 14 . In the event of a collision or in the locked state of the steering column 4 , opposing frictional forces F3 and F5 act at the contact surface 24 perpe...

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PUM

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Abstract

A steering column arrangement for a motor vehicle may include a guide part for rotatably mounting a steering shaft about a longitudinal axis, a guide box that is mountable on the motor vehicle and in which the guide part is arranged displaceably along the longitudinal axis, and a clamping system that is for locking the guide part in the guide box and that is switchable between a locked state where the guide part is secured relative to the guide box and a released state where the guide part is displaceable relative to the guide box in a direction of the longitudinal axis, and first and second contact surfaces disposed between the guide box and the guide part. In the released state the first contact surface is in first frictional contact with a surface of the guide part that opposes a displacement of the guide part along the longitudinal axis relative to the guide box. In the locked state the second contact surface is in second frictional contact with a surface of the guide part wherein a frictional force designed as a holding force acts between the guide box and the guide part.

Description

technical field [0001] The present invention relates to steering column devices. Background technique [0002] In the prior art it is known for motor vehicles that the steering column is adjustable in order to be able to adapt the position of the steering wheel to the requirements of various drivers. For the axial adjustability of the steering column, it is known, for example, from EP 1 125 820 A2 that two concentric tubes designed as guide box and guide can be moved relative to each other essentially in a telescopic manner. Bearings ensuring axial mobility are arranged between the two tubes. DE 10 2011 056 674 B3 discloses a steering column arrangement in which the guide part and the guide box each have a bead (bead) with which the guide part and the guide box can be guided into each other along the longitudinal axis way to install. The flanges each have an elongated hole as a through-opening through which the clamping bolt of the clamping system can be fed. [0003] Id...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B62D1/184B62D1/185
CPCB62D1/184B62D1/185
Inventor 罗伯特·加莱尔耶罗尼米斯·施尼策尔米夏埃尔·朔尔滕
Owner THYSSENKRUPP PRESTA AG
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