Wheel suspension using an arc spring

US4693492A · kind A · utility

Assignee

• Ficht GmbH · DE

Inventors

• Manfred Schindler · Borgo San Lazzaro, DE
• Walter Vilsmeier · Großhelfendorf, DE

Key dates

• Filing date: Apr 1, 1986
• Grant date: Sep 15, 1987
• Expiry date: Apr 1, 2006

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B62D55/1125
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

The invention relates to a hydropneumatic suspension system for a tracked-vehicle chassis component, having a circular-arc suspension member fitted within a housing. This circular-arc suspension member is located between a support fixed on the housing and a rotating abutment. The housing is hinged on pivot points by means of a suspension arm fixed on the housing and the abutment by means of a hinging lever. Very little space is provided for the suspension of chassis components in such vehicles. Moreover, the suspension system must also be maintenance-free and easy to assemble. According to the invention, this is accomplished either by causing the suspension arm and the hinging lever to form, together with the pivot points fixed on the vehicle and a parallel control arm connecting the hinging lever with a pivot point, a parallelogram, or by hinging the suspension arm on a lower pivot point fixed on the vehicle, and by providing a pneumatic control arm connecting a higher pivot point fixed on the vehicle with the hinging lever, and by locating in the expanded position the hinge joint between the pneumatic control arm and the hinging lever on the side, turned toward the suspension arm…