A holding unit that reciprocally holds a feeding roller and is separated from a base body, and locking position changing means (a first tooth row, a second tooth row, a shaft support portion, a cylindrical shaft, and the like) for changing a locking position of a holding unit with respect to the base body along a track in a direction in which a distance between the feeding roller and the guide roller is changed are provided. In the configuration, a position and an orientation of a guide roller are caused to be constant regardless of a size of a coin, and thus the coin is appropriately guided toward a feeding passage by the guide roller regardless of the size of the coin.