Abstract: A resin pin which is passed through a first resin-pin passing hole of a first plate, and a second resin-pin passing hole of a second plate to couple the second plate to a predetermined position of the first plate is sheared in a secondary collision, and causes the second plate to release from the predetermined position in a column movement direction. A slide plate which extends along the upper surface of the first plate has a resin-pin visual check hole. A highly hard collar is received by the second plate, placed in the first resin-pin passing hole, and fitted to a shaft portion of the resin pin. In the resin pin, axial elastic projections which apply a pressing and urging force to the slide plate are disposed at positions avoiding a range where, in a secondary collision, the resin-pin visual check hole is passed in the column movement direction.

Abstract: A resin pin which is passed through a first resin-pin passing hole of a first plate, and a second resin-pin passing hole of a second plate to couple the second plate to a predetermined position of the first plate is sheared in a secondary collision, and causes the second plate to release from the predetermined position in a column movement direction. A slide plate which extends along the upper surface of the first plate has a resin-pin visual check hole. A highly hard collar is received by the second plate, placed in the first resin-pin passing hole, and fitted to a shaft portion of the resin pin. In the resin pin, axial elastic projections which apply a pressing and urging force to the slide plate are disposed at positions avoiding a range where, in a secondary collision, the resin-pin visual check hole is passed in the column movement direction.