In a touch sensor unit, a bracket body is provided with a first protruding portion which is disposed on a vehicle interior side of a base portion, a gap portion is provided between the first protruding portion and the base portion, the height from the bracket body to the distal end of the first protruding portion is smaller than the height from the bracket body to the sensor portion. Therefore, when the sensor portion and the base portion are elastically deformed by contact with a blockage, the elastically deformed sensor portion and base portion enter the gap portion, thereby preventing the sensor portion and the base portion from being pressed against the corner portion of the bracket without increasing the rigidity of the sensor portion and the base portion.