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:
Oct. 17, 1995
Filed:
Jan. 18, 1994
Muneo Nishizawa, Shiga, JP;
Takata Corporation, Tokyo, JP;
Abstract
A mechanical acceleration sensor includes a weight, a latch lever, and a spring-loaded firing pin, which are movably supported in a casing. The latch lever is disengaged from the firing pin by inertial movement of the weight relative to the casing, thereby allowing the firing pin to perform a percussive firing action by the spring load. The weight is supported in the casing by a pair of first and second guide members for guiding the inertial movement of the weight. The first guide member is closely fitted in the weight, while the second guide member is loosely fitted in the weight. An error in parallelism between the first and second guide members is accommodated by the loose fitting of the second guide member. When sensing excessive acceleration, the weight effectively moves without interference with other members while only slightly rotating about the axis of the first guide member to absorb the error in parallelism.