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:
Jan. 09, 1996
Filed:
Dec. 07, 1994
Manabu Takaoka, Kitakatsuragi, JP;
Masayuki Watanabe, Uji, JP;
Koyo Seiko Co., Ltd., Osaka, JP;
Abstract
A lock nut having a tapered portion at one end thereof is screwed halfway through an output shaft that transfers motion to a steering mechanism. A tapered fitting hole formed through an axis of a worm wheel is fitted onto an outer circumference of the tapered portion with a slip plate interposed therebetween. By tightening the lock nut, the worm wheel is pressed and fixed to a support portion formed on a portion of the output shaft, and a worm directly connected to an output side of a steering assisting electric motor is made to engage with a gear formed on the outer circumference of the worm wheel. In normal operation, the torque of the electric motor is transmitted to the worm wheel via the worm, and further on to the output shaft via friction on the slip plate. Upon application of an excessive rotational torque in the event of a motor lock, slippage occurs on the slip plate to allow free rotation of the output shaft.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile