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:
Mar. 27, 2012
Filed:
Mar. 26, 2008
Applicants:
Eiji Maemura, Kanagawa, JP;
Susumu Nakajima, Kanagawa, JP;
Inventors:
Eiji Maemura, Kanagawa, JP;
Susumu Nakajima, Kanagawa, JP;
Assignee:
Autoliv Development AB, Vargarda, SE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B65H 23/06 (2006.01);
U.S. Cl.
CPC ...
Abstract
A retractor including a spindle for winding a seat belt; a frame for rotatably supporting the spindle; a winding spring for biasing the rotation of the spindle in the direction of winding the seat belt; and a magnetic disc and a magnet sensor unit for detecting the rotation of the spindle. The magnetic disc and the magnet sensor unit are disposed between the frame and the winding spring, and are each made of a magnetic material. Hence, the seat belt device can be less affected by a disturbance magnetic field and can detect the rotation of the spindle at high reliability.