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:
May. 19, 1992
Filed:
Oct. 18, 1990
Rainer Dumschat, Donzdorf, DE;
Gottfried Schremmer, Tamm, DE;
Mercedes-Benz AG, , DE;
Abstract
A releasable locking device for a vehicle steering column adjustable in the longitudinal direction is disclosed which has a postionally fixed steering column part and a steering column section displaceable relative to the latter. A steering wheel is provided at the end of the steering column. The fixing of the steering column can be influenced by a hydraulic system which can be controlled by a mechanical actuating member. A locking device is provided which has a sealed hydraulic piston-cylinder unit which is arranged axially parallel to the steering column and is coupled between the positionally fixed steering column part and the displaceable steering column section with the cylinder chamber subjected to pressure in the case of an impact on the steering wheel being completely filled. The relative position of the fixed steering column part and the displaceable steering column section can be locked in various supporting positions by a blocking device arranged in an overflow path between the two sealed cylinder chambers.