The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 18, 2009
Filed:
Nov. 19, 2004
Johann Meier, Fensterbach, DE;
Thomas Burger, Lubburg, DE;
Marco Hofmann, Hahnbach, DE;
Grammer AG, Amberg, DE;
Abstract
The invention relates to a vehicle seat comprising at least one gas spring () which damps vibration and adjusts the seat height, said gas spring being arranged between a seat frame () and a base frame (), and comprising a valve arrangement () for adjusting the pressure in the gas spring () and a compressor () assigned to the vehicle seat (), said compressor having a drive motor for feeding compressed gas to the gas spring (), wherein a belt roller device comprising a belt () rolled around an axle () is arranged between the seat frame () and the base frame (), the first end () of said belt being attached to a belt roller mechanism () arranged on the seat frame () and the second end () of said belt being attached to the base frame (), and a detector () which detects a belt rolling movement is attached to the seat frame (). Use is made of an electronic control unit () for evaluating belt rolling movement signals detected within a predefined time period () for determining a seat height profile within the time period () and for controlling the valve arrangement () and/or the compressor () such that automatic, time-delayed seat height re-adjustment takes place if the seat height profile () determined for the time period () lies out of a position of symmetry in relation to a predefinable mean seat height (). Also disclosed is a method for carrying out such automatic seat height adjustment.