Gas spring of variable spring force

US4632371A · kind A · utility

Assignee

• Stabilus GmbH · DE

Inventors

• Winfried Wirges · Koblenz, DE
• Leo Lauderbach · Steinbach, DE
• Willi Schafer · Feldafing, DE

Key dates

• Filing date: Mar 18, 1985
• Grant date: Dec 30, 1986
• Expiry date: Mar 18, 2005

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F16F9/0245
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

A gas spring particularly for jumping stilts comprises a working cylinder and a plunger. In the working cylinder there is a working chamber containing a mass of gas. A gas exchange chamber is fixed with respect to the working cylinder. An exchange passage connects the working chamber and the gas exchange chamber. A gas exchange valve is provided in the exchange passage. An exchange operating handle is provided separate from the plunger.