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:
Jul. 22, 1997
Filed:
Nov. 06, 1996
Yasuo Shimizu, Saitama, JP;
Mitsutaka Sugino, Saitama, JP;
Honda Giken Kogyo Kabushiki Kaisha, Tokyo, JP;
Abstract
An electrically operated power steering apparatus has a housing, a pinion rotatably supported in the housing, the pinion being adapted to be connected to a steering shaft, a rack shaft axially movably disposed in the housing and held in mesh with the pinion, an electric motor disposed coaxially around the rack in the housing, and a ball-and-nut mechanism disposed on the rack shaft in the housing for transmitting a torque produced by the electric motor as an axial displacement to the rack shaft. The electric motor has a stator fixedly mounted in the housing and a rotor rotatably supported in the housing by a pair of bearings mounted on respective opposite ends of the rotor, the ball-and-nut mechanism being coupled to the rotor. A rack guide is disposed in the housing behind the pinion remotely from the ball-and-nut mechanism and held in sliding contact with the rack shaft. The rack shaft is axially slidably supported in the housing by the ball-and-nut mechanism and the rack guide.