Patent ID: 6032415
Filing Date: 2000-03-07
Classification: E05F,E05Y

Abstract:
A power window apparatus having a safety unit, comprising:a position sensor which defects an opened/closed position of a window, said window being opened/closed by a motor, with said position sensor initiating a pinch preventive safety control operation in accordance with the detected opened/closed position of said window,wherein said position sensor includes a main gear rotated by an output shaft rotated by said motor; a sub-gear disposed adjacent to said main gear in the axial direction and rotated by a mechanism provided for rotating said sub-gear at a rotational speed different from a rotational speed of said main gear, wherein a contact is provided for said main gear and a conductive film is provided for said sub-gear, and in an initial position where said contact and said film are not engaged, and after movement along a set of loci, said contact and said film engage thereby completing an electrical circuit which produces a position detection signal.