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. 07, 2004
Filed:
Jun. 24, 2002
Hiroaki Fujii, Tokyo, JP;
Koji Tanaka, Tokyo, JP;
Hitoshi Fujita, Tokyo, JP;
Koichi Furukawa, Tokyo, JP;
Takata Corporation, Tokyo, JP;
Abstract
In controlling a seat belt retractor, at least one of signals selected from a state signal showing a movement of an occupant wearing a seat belt and an external signal obtained from detecting means installed in a vehicle during running thereof is received. Then, a rotation of a spool for a webbing is controlled by switching a rotational torque of a motor to a predetermined reduction ratio corresponding to at least one of the state signal and the external signal, or a driving state of the motor is controlled to a predetermined torque, to thereby wind the webbing on the spool. After fastening the seat belt, the seat belt is automatically wound, and after a predetermined time from completion of winding of the webbing, it is determined whether the winding of the webbing is further needed, and if necessary, the webbing is wound again.