| 摘要 |
<p>PURPOSE:To eliminate the need for an exclusively designed switch which detects the end of reverse rotary motion by installing a stopper during reverse rotation to a rotary member of an automatic door closing device and detecting a rotary speed of a motor or changes in a current value and halting the operation of a motor. CONSTITUTION:After a door is closed from a half-latched state to a full-latched state in automatic mode, a stopper 100 is installed to a rotary member 96 of a lock device which halts a motor by rotating reversely while a detector is installed in a controller 120 of an automatic opening motor 40. After full- latching, the rotary member 96 is rotated reversely so that it may come into contact with the stopper 100. The rotary speed of the motor or changes in the current value in that time is detected and the return of the rotary member 90 to the original position is confirmed, thereby halting the operation of the motor 40. This construction makes it possible to eliminate the need for a switch which is exclusively designed to detect the end of reverse rotation.</p> |
