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:
Sep. 30, 1997
Filed:
Feb. 09, 1996
Masaichi Hattori, Aichi, JP;
Osamu Shoji, Aichi, JP;
Kabushiki Kaisha Tokai Rika Denki Seisakusho, Aichi, JP;
Abstract
A lock plate moves in a direction indicated by an arrow by the operation of a detent knob. A stopper plate to which a main body of an electromagnetic solenoid is fixed is designed to reciprocate between a lock position and an unlock position, the lock position being a position at which a stopper section confronts the lock plate and the unlock position being a position at which the stopper section evacuates from the lock plate. The stopper plate is normally urged toward the lock position by return springs. A cam member coupled to a plunger of the electromagnetic solenoid receives a force to move to the unlock position through the operation of the cam with respect to the lock plate. A resiliency of the return springs is set to a value smaller than a resultant force of a plunger attracting force of the electromagnetic solenoid and a resiliency of a trip spring that urges the plunger in a plunger attracting direction.