ULTRASONIC SENSOR

An ultrasonic sensor is provided with a mount 2 that is fixed to an inside-face of the bumper 1, and a sensor body 3 that is coupled to the mount 2 so as to be exposed outside the bumper 1 through an exposure hole 11 that is provided in the bumper 1. Compared with a case where an ultrasonic sensor is fixed to a bumper 1 by sandwiching the bumper 1 from inside and outside of the bumper 1, appearance can be improved, since protrusion outward from the bumper 1 is eliminated.