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. 28, 1999
Filed:
Jul. 15, 1998
Terukazu Nakajima, Yamatotakada, JP;
Koyo Seiko Co., Ltd, Osaka, JP;
Abstract
An electric power steering apparatus which includes: an input shaft connected to a steering wheel; a torque sensor mechanism having a torque sensor which detects a steering torque on the basis of a relative displacement of the input shaft and the output shaft connected to the input shaft via a torsion bar; and a reduction mechanism which reduces a rotation of a steering assisting electric motor driven on the basis of a result detected by the torque sensor and transmits it to the output shaft. The torque sensor mechanism is arranged to the steering mechanism side from the reduction mechanism, so that an energy absorption stroke can be further made long without varying a mount point of the electric motor and a column mount length.