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:
Sep. 28, 1999
Filed:
Apr. 30, 1996
Hirokazu Kitazawa, Saitama-ken, JP;
Kazuhiro Kishimoto, Saitama-ken, JP;
Yoshio Kakizaki, Saitama-ken, JP;
Yoshitaka Katashima, Saitama-ken, JP;
Takashi Kuribayashi, Saitama-ken, JP;
Hitoshi Suda, Saitama-ken, JP;
Honda Giken Kogyo Kabushiki Kaisha, Tokyo, JP;
Abstract
In an electric steering actuator comprising an electric motor having a hollow output shaft, a steering shaft passed through the hollow center of the output shaft of the electric motor, and a ball-screw mechanism provided between the output shaft and the steering shaft for converting the rotary movement of the output shaft into a longitudinal movement of the steering shaft, a rotation preventing mechanism is provided for preventing the rotation of the steering shaft around its axial line. The rotation preventing mechanism comprises a guide pin extending in the casing in parallel with the axial line of the steering shaft, and a fork member engaging the guide pin between two prongs thereof. Because the rotation preventing mechanism can be formed by using a guide pin made of a stock steel or other metallic member, such as a cold finished steel bar, the manufacturing cost can be reduced. Furthermore by using a fork member defining an open slot for engagement with the guide pin, the assembling process is simplified, thereby reducing the manufacturing cost. In particular, by interposing a plastic slider between the pin and the fork member, metallic noises are avoided, and a smooth operation is ensured at a low cost.