Precise adjustment of a MacPherson strut: adjustment means on the strut and measuring bench
AssigneeCompagnie Generale des Etablissements Michelin - Michelin & Cie
InventorsAntoine Ducloux, Jack Faure, Jacques Foulquier, Thierry Orsat
Life of this patent
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Abstract
The strut comprises a ball bearing (42) located below the lower retainer ) of the spring (4). The ball bearing (42) is centered on an eccentric collar (27) in order to shift the center of the ball bearing (42) by a distance e from the axis of the shock absorber. Rotation between the body (2) of the shock absorber and the hub holder (5) displaces the center of the ball bearing (42), which shifts the lower retainer (41) accordingly. Using a suitable measuring bench, the strut is adjusted precisely upon the assembling thereof.
Claims10
A strut of a MacPherson wheel suspension in which a shock absorber is provided with a body and a rod, said strut comprising a coil spring surrounding said rod, a lower retainer supported by the body of the shock absorber, said lower retainer having a lower seat receiving one of the ends of said spring, an upper retainer intended to rest on the body of the vehicle, said upper retainer having an upper seat receiving the other end of said spring, said upper retainer being traversed by said rod, the shock absorber body having a surface adapted to be connected to a hub holder by coupling means, said hub holder defining an axis of rotation of a wheel of the vehicle, said coupling means imposing a predetermined azimuthal position between the body and the hub holder, said strut further comprising means for adjusting the relative position of the axis of the spring with respect to said shock absorber body surface and maintaining the adjusted position during the service of the strut.
A strut of a MacPherson wheel suspension, comprising a shock absorber provided with a body and a rod, said strut having a coil spring surrounding said rod and a lower retainer supported by the body of the shock absorber, said lower retainer having a lower seat receiving one of the ends of said spring, and an upper retainer intended to rest on the body on the vehicle, said upper retainer having an upper seat receiving the other end of said spring, said upper retainer being traversed by said rod, the shock absorber body having a surface for coupling to a hub holder, said hub holder defining an axis of rotation of a wheel mounted on the vehicle, one of the upper and lower retainers containing a ball bearing permitting the swinging of the hub holder, the axes of said ball bearing and the pivot axis being spaced apart, and means for adjusting the distance between the axis of said ball bearing and the pivot axis and maintaining the adjusted distance during the service of the strut.
Dependencies are inferred from the claim text.