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:
Apr. 26, 1988
Filed:
Sep. 19, 1986
Masanobu Ishikawa, Nagoya, JP;
Kazunori Sakamoto, Toyoake, JP;
Yuji Yokoya, Toyota, JP;
Sumio Takizawa, Toyota, JP;
Aisin Seiki Kabushiki Kaisha, Tokyo, JP;
Toyota Jidosha Kabushiki Kaisha, Tokyo, JP;
Abstract
An electrically operated tiltable vehicle steering mechanism includes an electric motor of a reversible type which is adapted to drive through a speed reduction mechanism a screw shaft of a screw-nut mechanism. The screw-nut mechanism includes a nut which is engaged with the screw shaft and connected with a tiltable bracket supporting a steering shaft. Stoppers are provided to limit the stroke of the movement of the nut. The stopper includes a stopper plate made of a metallic material of a low frictional coefficient and a rubber cushion. The stopper is located with the stopper plate faced to the nut for engagement therewith and the rubber cushion maintained in contact with the housing of the screw-nut mechanism. The mechanism is provided with a clutch means for allowing a slip between the motor and the screw nut mechanism when the excessive load is applied to a torque transmission mechanism.