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:
Apr. 11, 2000
Filed:
Feb. 10, 1999
Satoshi Ohta, Kosai, JP;
Takayoshi Aoyama, Toyohashi, JP;
Asmo Co., Ltd., , JP;
Abstract
A door closing system for locking and unlocking a door using a single actuator has a motor, a latch to be engaged with a door striker and a driving cam for driving the latch. An output shaft of the motor is disposed in parallel with a shaft which rotatably holds the latch and the driving cam, thereby reducing an installment space of the latch and the driving cam. Further, the actuator has plural reduction gears rotated by the motor, and a pattern is disposed on a surface of one of the reduction gears. First to third contacts are disposed to slide on the pattern, thereby producing detection signals of a rotation position of the reduction gear. An operation state of the door closing system is detected according to the detected rotation position of the reduction gear. Thus, the door closing system can be controlled accurately with a single detection sensor.