| 摘要 |
PURPOSE:To improve the efficiency of transmitting force to a load from a driving means by providing a flexing passage, which is opposed to the periphery of a rotatable guide roller further with a wire passing through between the periphery of the guide roller and the flexing passage, so as to form a flexing guide part. CONSTITUTION:When a rotor 15 is normally rotated by actuating a drive motor 11, thrust is given to a wire 21 through meshing of an internal thread part 20 of a rotor shaft 19 with a peripheral protrusive tooth 21a of the screw type wire 21, and it is fed out to the upper of the motor 11. Next the wire 21, after it passes while flexing in a flexing passage 28, is slided toward the lower in a guide pipe 25 to open a window by pulling down a window glass 30 through a connecting tool. Next, when the rotor 15 is reversely rotated, the wire 21 is given tension through meshing of the internal thread part 20 with the protrusive tooth 21a and fed out toward a space below the motor 11. Further the wire 21 is slided upward in the pipe 25 to close the window by pulling up the window glass 30. |
