| 摘要 |
A sun gear which is rotationally driving according to power which is transmitted from a driving motor, a planetary gear which can be displaced in the circumferential direction of the sun gear in a state of being engaged with the sun gear, and a winding-up gear which transmits a rotational driving power to a winding-up roller are provided, and the planetary gear is released from an engagement with a rack gear unit, rotates the winding-up roller by being engaged with the winding-up gear, and winds up a wiping member after the planetary gear moves a wiper holder in the wiping direction by being engaged with the rack gear unit of the wiper holder. |
