Spring arrangement

US4679760A · kind A · utility

Assignee

• Grammer Sitzsysteme GmbH · DE

Inventors

• Josef Dotzler · Amberg, DE
• Johann Meier · Schwarzenfeld, DE

Key dates

• Filing date: Apr 18, 1986
• Grant date: Jul 14, 1987
• Expiry date: Apr 18, 2006

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F16F1/041
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

A springing arrangement comprises a coil spring and a spring-engaging member acting thereon between the two ends of the spring and in a direction which differs from the longitudinal direction of the spring, thereby to provide non-linear dependency of the spring force on the distance covered by the spring-engaging member. The spring-engaging member is made up of two elements on respective sides of the spring, each element bearing against the spring by way of a curved surface and extending over a plurality of turns of the coil spring.