Elektrische Fensterhebervorrichtung

摘要

A power window apparatus for detecting accidental pinching in a power window in accordance with the opened/closed position of the window and a state of rotation of a motor which is structured to improve the accuracy of the operation of a position sensor for detecting a safety-control suspension region for the window. A pair of contacts are disposed on the side surface of a main gear which is rotated by an output shaft of a motor for opening/closing a window. A conductive film opposite to the contacts is provided for a sub-gear engaged to the main gear through an interlocking gear and arranged to be rotated at different speed from that of the main gear. When the relative rotational operation between the main gear and the sub-gear causes the output shaft of the motor to reach a predetermined amount of rotation, so that the window has moved to a predetermined opened/closed position, the contacts and the conductive film are brought into contact with one another so that an electric signal is output. Therefore, the safety-control suspension region can be detected at an accuracy of one-to-one correspondence to the amount of movement of the window.