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:
Dec. 16, 2003
Filed:
Jul. 02, 2002
NTN Corporation, Osaka, JP;
Abstract
To provide a wheel steering apparatus capable of exhibiting a stabilized vehicle steerability without transmitting an external disturbance torque to a motor rotor even when the wheel receives an axially acting external force, this wheel steering apparatus includes a reciprocatingly movable rod drivingly connected with a support member for steerably supporting a wheel and a ball screw mechanism for reciprocatingly moving the rod in response to rotation of a drive motor In a rotational transmission system for transmitting rotation of the drive motor to a nut member of the ball screw mechanism a clutch assembly defining a reverse input limiting means is provided for preventing a rotar of the drive motor from being rotated by the external force acting on the wheel This clutch assembly used is of a design wherein although rotation can be transmitted from an input shaft to an output shaft, no rotation is transmitted from the output shaft to the input shaft.