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:
Jul. 11, 1978
Filed:
May. 02, 1977
Russell F Chekirda, Morristown, TN (US);
Lear Siegler, Inc., Morristown, TN (US);
Abstract
Seat positioning mechanism of the type including an elongated thin-walled housing telescopically receiving a rod with friction lock washers operable to restrain the rod against movement with respect to the housing in any selected position. The invention includes a construction for increasing the locking efficiency of the lock washers and reducing the cross-section of the housing. A slot is formed in the wall of the housing, and one end of the slot is located on the housing wall at the outer boundary of the housing to define a fulcrum. The other end of the slot forms a stop on an inwardly depressed portion of the housing wall. The lock washers have lever arms that project into the slot. The fulcrum is curved to minimize the likelihood of sideways cocking of the lock washers. Also disclosed is a novel release mechanism including a shaft rotatably supported in a mounting bracket secured to the housing. A pusher member in the form of an eccentric cylindrical projection on the end of the shaft projects part way into the housing. When the shaft is rotated to an active position, the projection forces the lock washers against a return spring to the unlock position. when the shaft returns to an inactive position, the lock washers return to the lock position.