Patent ID: 6114820
Filing Date: 2000-09-05
Classification: E05F,E05Y

Abstract:
A power window apparatus having a safety unit, comprising:a position sensor for detecting an opened/closed position of a window which is opened/closed by a motor to perform a pinch preventive safety control operation in accordance with the detected opened/closed position, wherein said position sensor incorporates a spiral guide fixedly disposed in a housing integrally supported by said motor;a rotational plate arranged to be rotated along a guide surface of said spiral guide by an output shaft of said motor disposed at the center of said spiral guide and provided with a straight guide groove formed in a radial direction;a terminal disposed at a predetermined position in said housing facing a predetermined region of said spiral guide; anda follower supported in said straight guide groove of said rotational plate arranged to be moved along said straight guide groove while said follower is being guided by said spiral guide and brought into contact with said terminal at a predetermined movement position to enable an electric signal to be output from said terminal.