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Damping bearings with axial preload

A preload, axial technology, applied in steering rods, home appliances, steering mechanisms, etc., can solve problems such as imperfect damping, poor control of damping devices, and interference with driving feeling.

Inactive Publication Date: 2021-12-17
JTEKT EURO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, known damping devices have properties that are sometimes poorly controlled, and more particularly asymmetrical depending on whether the damping device is biased in compression or tension, so that the damping provided may be imperfect, And may interfere with the driving feeling perceived by the driver through the steering wheel, or may even affect the dynamic performance and stability of the vehicle

Method used

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  • Damping bearings with axial preload
  • Damping bearings with axial preload
  • Damping bearings with axial preload

Examples

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Embodiment Construction

[0028] The invention relates to a method for producing a damping device 1 .

[0029] Said damping device 1 is more specifically intended to be implanted in a tie rod 2 which is preferably equipped with a steering system 3 .

[0030] in a manner known per se and as figure 1 As shown in , the steering system 3 may include a rack 4 that is movable and guided in translation in a steering housing 5 and that is connected to the tie rod 2 such that: when the rack 5 is displaced At this time, the rack 4 drives the tie rod 2, and the tie rod 2 acts on the short shaft 6, thereby changing the yaw orientation (steering angle) of the steering wheel 7.

[0031] The steering system 3 may also comprise a steering wheel 10 allowing the driver to actuate the steering system 3 , eg via a steering column 11 carrying a pinion 12 meshing with the rack 4 .

[0032] Preferably, the steering system 3 forms a power steering system equipped with an auxiliary motor 13 , preferably an electric auxiliary...

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PUM

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Abstract

The invention relates to a method of manufacturing a damping device (1), in particular for a steering rod, said device comprising: a rod (20) extending along a main axis (XX') and intended to connect to the first mechanical part (4); the fixed part (22), which surrounds said rod (20) and is intended to be connected to the second mechanical part (2B); and the sleeve (23), the sleeve ( 23) Made of elastic material and arranged between the rod and the fixed bush to allow at least axial movement of the fixed bush relative to the rod by elastic deformation of the sleeve, in this way the fixed bush (22) Axially offset relative to the rod (20) to force elastic deformation of the sleeve (23) and introduce a corresponding preload, the sleeve (23) is then locked to hold the sleeve (23) when the device is at rest ) is in a state of permanent axial elastic deformation and preload.

Description

technical field [0001] The invention relates to the field of tie rods for transmitting mechanical movement between a first movable part and a second movable part. [0002] The invention relates more particularly to tie rods used in steering mechanisms of motor vehicles. Background technique [0003] It is known to provide bearings within the steering mechanism, more particularly within the tie rods, provided with damping means formed by elastic pads intended to damp shocks and vibrations generated by the roughness of the road. [0004] Furthermore, the inventors have discovered that the presence of an appropriately sized damping member may advantageously allow a phase shift (delay) between the orientation angle of the steered wheel and the angle of the steering wheel as the driver manipulates the steering wheel, with the wheel accurately and instantaneously Following the angle of the steering wheel, the phase shift has the effect of increasing the turning radius of the vehi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16F1/38B62D7/22
CPCF16F1/3814F16F1/3842F16F2228/08B62D7/228B29C45/14491B29K2905/00B29K2995/0046B29L2031/3002B62D5/04F16F2224/025F16F2226/04
Inventor 菲利普·杜兰德
Owner JTEKT EURO