Patent ID: 6913253
Filing Date: 2005-07-05
Classification: B60G,F16F

Abstract:
1. A travel-limiting device for a motor-vehicle shock absorber ( 3 ), the said device comprising a stop ( 2 ) provided with an elastic compression element, which is interposed, coaxially with the leg ( 5 ) of the shock absorber ( 3 ), between the vehicle chassis, to which there is connected the shock-absorber leg ( 5 ), and the shock-absorber body ( 4 ), which is connected to the chassis, and the wheel-spindle support, to which there is connected the shock-absorber leg ( 5 ), a suspension spring ( 14 ) being provided between the chassis and the shock-absorber body ( 4 ) concentric with the latter, wherein the compression element ( 2 ) extends at least partly around the shock-absorber body ( 4 ) while being maintained in preloaded condition relative to the shock-absorber body ( 4 ), an elastomeric vibration-damping element ( 8 ) of cylindrical general shape is made integral with the end of the shock-absorber leg ( 5 ), and the compression element ( 2 ), the damping element ( 8 ) and the end of the shock-absorber leg ( 5 ) are completely housed within the suspension spring ( 14 ), the damping element ( 8 ) and the compression element are situated in two annular zones, respectively, one extending from the other and both being concentric with shock-absorber body ( 4 ) to reduce the transverse dimensions of the damping and compression elements ( 8 ; 2 ), wherein the compression element ( 2 ) is disposed around the body ( 4 ) of the shock-absorber ( 3 ) in a bowl ( 10 ) integral with this body, and is maintained in preloaded condition in the bowl ( 10 ) by a mount ( 11 ) connected to the chassis (C) or to the wheel support, and wherein the housing bowl ( 10 ) of the compression stop ( 2 ) has two concentric walls, the outer wall ( 10 a ) and the inner wall ( 10 b ) respectively, joined to one another by a transverse annular wall ( 10 c ) for bracing the compression stop ( 2 ), in such a way as to define approximately, in longitudinal section, a U-shaped structure, the inner wall ( 10 b ) of the bowl ( 10 ) being integral with the corresponding lateral surface of the body ( 4 ) of the shock absorber ( 3 ).