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. 31, 1985
Filed:
Sep. 30, 1983
Taneichi Kawai, Anjo, JP;
Mituyoshi Masuda, Nagoya, JP;
Aisin Seiki Kabushiki Kaisha, Kariya, JP;
Abstract
A safety device for an electromechanical opening and closing mechanism, such as an automotive sun roof, which interrupts a circuit for driving the mechanism when a load on the circuit happens to exceed a certain set value in an abnormal case such as when a foreign object is caught in the mechanism. The set value is either a first set value which varies in accordance with the above-noted load or a second set value which is determined by the position of the movable part of the above-noted mechanism. The safety device functions when a load exceeds either of the two set values. The first set value is effective against a load variation, particularly a load decrease, to prevent a decrease in sensitivity decrease of the safety device, while the second set value is effective against an increase in load, particularly a slow increase, to prevent an overload on the mechanism. Thus, the safety device prevents damage to the mechanism and the foreign object caught in the mechanism, while the device maintains a high sensitivity.