Height adjustment device of a vehicle seat and a vehicle seat fitted with it

US7770974B2 · kind B2 · utility

Assignee

• Festo AG & Co. KG · DE

Inventors

• Helmut Ott · Stuttgart, DE
• Simon Geiger · Richterswil, CH
• Steffen Sailer · Metzingen, DE

Key dates

• Filing date: Feb 5, 2008
• Grant date: Aug 10, 2010
• Expiry date: Dec 28, 2028

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B60N2/508
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

A height adjustment device of a vehicle seat comprises a control valve means for governing the degree of filling of a compressed air actuator. Following an alteration in the weight to be carried by the compressed air actuator there is a relative switching over movement between a component bearing a control cam slide and a component bearing an actuating member entailing the switch over of the control valve means. The relative switching over movement is a linear movement, the two components bearing the slide and the actuating member being guided for relative sliding linear motion in the direction of the switch over movement. Furthermore a vehicle seat having such a height adjustment device is provided.