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:
Jun. 26, 2007
Filed:
Apr. 29, 2004
Masahiko Imoto, Kariya, JP;
Masahiko Imoto, Kariya, JP;
DENSO Corporation, Aichi-ken, JP;
Abstract
A collision impact detector detects deceleration of a vehicle caused by its collision with another vehicle or an obstacle. A rotor is rotatably supported on a shaft and biased by a coil spring in a direction opposite to a rotational direction in which the rotor is rotated by the deceleration. One axial end of the coil spring is supported by a first support integrally formed with the rotor, and the other axial end of the coil spring is supported by a second support formed separately from the rotor. In this manner, a friction torque generated between the coil spring and the second support is eliminated, thereby considerably reducing a total friction torque associated with rotation of the rotor. The second support may be formed either integrally with or separately from a housing supporting the shaft.