Motor-powered opening/closing apparatus for a window or door

Details Motor-powered opening/closing apparatus for a window or door Motor-powered opening/closing apparatus for a window or door

H - Electricity

02

P

342/40

H02P 1/22 (2006.01) B60J 10/00 (2006.01) E05F 15/00 (2006.01) H02H 7/085 (2006.01)

Patent

CA 1326280

ABSTRACT OF THE DISCLOSURE A motor-powered opening/closing apparatus includes a circuit for detecting a constrained state of a motor as a power source of a window or a door and deenergizing the motor, and a circuit for detecting clamping of a foreign object between an edge of the window or the door and a fixed frame and stopping or reversing rotation of the motor. These circuits are independently arranged to detect clamping of the foreign object with high sensitivity while a closing force at the closed position can be kept large.

571668

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