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Bump Stop And Macpherson Strut

A technology of stopper and suspension, applied in the direction of suspension, elastic suspension, shock absorber, etc., can solve problems such as dissatisfaction, vulnerable bearings, and retaining buffer blocks.

Active Publication Date: 2012-04-04
NTN SNR BEARING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, the bearings were found to be vulnerable to damage as there was an unprotected passage for contaminants to enter through the internal radial openings between the bearing washers
In the alternative described in the document DE 1975268, the buffer block is not retained axially, which is unsatisfactory

Method used

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  • Bump Stop And Macpherson Strut
  • Bump Stop And Macpherson Strut
  • Bump Stop And Macpherson Strut

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0031] exist figure 1 In , a suspension stop 10 is represented constituting the upper part of the suspension strut at the interface between the suspension strut and the vehicle superstructure (actually a member of the body or vehicle chassis). This suspension stopper 10 comprises a roller bearing 12 consisting of an upper washer 14 and a lower washer 16, which respectively form a higher raceway 141 and a lower raceway 161, and the rolling bodies made of balls 18 rolls on said upper raceway 141 and lower raceway 161 . The support 20 is interposed between the lower washer 16 and the upper coiled portion of the coil spring 22 of the suspension strut. Optionally, a ring 24 made of elastic material can be placed between the support and the coil spring.

[0032] The interface for fixing the suspension stop to the vehicle superstructure (in this example the body) consists of a metal plate 26 provided with fixing holes 261 for screws 27 to be fixed to the body. A rigid cover 50 is ...

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PUM

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Abstract

The stop has a bearing (12) comprising an upper washer (14) and a lower washer (16) defining a rolling path on which rolling bodies (18) are rolled, where the lower washer integrates a support interface against an upper end of a helical spring (22). A rigid fixing element (26) fixes a MacPherson strut to a superstructure of a vehicle. An impact stop (30) comprises an annular strip (36) placed in an annular volume (38) delimited axially by a lower bearing (40) integrated to the upper washer and an upper bearing integrated to a rigid element. An independent claim is also included for a MacPherson strut comprising a telescopic shock absorber.

Description

technical field [0001] The present invention relates to a suspension stop (suspension stop) for a Macpherson strut including a telescoping damper and a coil spring, and more particularly to a suspension stop comprising a Suspension stoppers for roller bearings between the coil springs and the vehicle superstructure, and deformable bumpers that act as damping bumpers for the retracted end of the telescoping damper travel. The invention also relates to a suspension strut comprising such a suspension stop. Background technique [0002] The bumper can be fixed to the lower washer of the roller bearing or to a member fixed relative to this washer, as described, for example, in documents FR 2 859 513 or FR 2 779 096 . In this case, the relatively high forces exerted by the damper cylinder on the damper block are transmitted to the body via the bearing, which is not advantageous here. [0003] It is also possible to fix the bumper to the upper gasket or to a rigid or non-rigid co...

Claims

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Application Information

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IPC IPC(8): B60G15/02
CPCB60G15/068F16F9/58B60G2204/4502
Inventor 克里斯托弗·里莫斯
Owner NTN SNR BEARING
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