a door for a ticket gate is disclosed . the door is composed of a metal plate as a core material and a cushioning material covering the metal plate . the metal plate defines at least one through - hole therein . the cushioning material comprises expanded polyolefin plates , and the metal plate and the expanded polyolefin plates have been integrated together by arranging the polyolefin plates on opposite sides of the metal plate , respectively , and then press molding them together .