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:
May. 18, 2004
Filed:
Sep. 25, 2001
Yosuke Hasegawa, Saitama, JP;
Honda Giken Kogyo Kabushiki Kaisha, Tokyo, JP;
Abstract
A power steering device includes a cylindrical holder coaxially arranged on a steering shaft, a cylindrical rotary cylinder coaxially and rotatably installed in the holder and forming two oil chambers spaced apart in a circumferential direction between it and an inner surface of the holder, and a spool changing-over member coaxially and rotatably inserted in the rotary cylinder and connected to the steering wheel. A differential mechanism is provided between the rotary cylinder and the spool changing-over member for integrally rotating the rotary cylinder and the spool changing-over member when a steering force applied to the steering shaft is low, and allowing a relative rotation between the rotary cylinder and the spool changing-over member when the steering force is larger than a predetermined value.