Rear axle suspension for automotive vehicles

US4334698A · kind A · utility

Assignee

• Dr. Ing. h.c. F. Porsche AG · DE

Inventor

• Gebhard Ruf · Rutesheim, DE

Key dates

• Filing date: Apr 7, 1980
• Grant date: Jun 15, 1982
• Expiry date: Apr 7, 2000

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B60G2204/4502
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

A rear axle suspension for an automotive vehicle has a driven rear axle which is guidably suspended by at least one control arm at each end of the axle and an elastic joint for interconnecting one end of each control arm with the vehicle body in a manner permitting the opposite end of the control arm to be displaced upwardly and downwardly with like movements of a respective end of the axle suspended thereby. Each respective interconnected joint and control arm is constructed and arranged with respect to each other for producing a more resilient suspension of the axle in the longitudinal direction of the vehicle when the opposite end of the control arm is deflected downwardly than when the opposite end is deflected upwardly with respect to a neutral position thereof. In accordance with preferred embodiments, the above-noted differing resiliencies can be achieved by the use of elastic joints that are more resilient along one axis than another, the control arms being shifted between positions more in alignment with one or the other of said axes or by shifting the control arm producing a deformation of the elastic joints that changes its degree of resiliency.