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:
Nov. 22, 1988
Filed:
Sep. 21, 1987
Masumi Nishikawa, Toyoake, JP;
Hiroshi Watanabe, Nagoya, JP;
Aisin Seiki Kabushiki Kaisha, , JP;
Abstract
A tiltable and telescopically extensible steering shaft assembly includes a lower main shaft journalled by a stationary bracket and an upper main shaft assembly including a first shaft portion telescopically connected with the lower main shaft through splines and a second shaft portion connected with the first shaft portion for pivotable movements with respect thereto through a universal joint. The stationary bracket carries a first screw shaft and one or more second screw shafts for rotation and engaged with first and second nuts, respectively. An upper bracket is provided on the second shaft portion of the upper shaft assembly and connected with the second nuts for pivotable movements about a transverse tilting axis passing through the pivot point of the universal joint. The first nut is carried by the upper bracket so that a rotation of the first screw shaft produces a tilting movement of the second shaft portion of the upper shaft assembly and rotations of the first and second screw shafts produce a telescopic movement of the upper shaft assembly.