To mount easily and properly a vehicle, electric motor pole, which is used as a car width indicating corner pole, receiving antenna, etc., in a location of the vehicle such as automobile or the like.

An implement is constituted by a case 7 receiving a drive part 2 of an electric pole for a vehicle and a holding fixture 8 holding this case 7. In the case 7, a guide part 71 protruding a pole 1 of the vehicle electric motor pole to the outside and a fixed part 72 fixed to a location of the holding fixture 8 are provided. On the other hand, in the holding fixture 8, a mounting part fixed to a location of the vehicle and a connection part connected to the fixed part 72 of the case are provided.