Abstract: Each mounting member (16) is formed by a resilient sheet of an intermediate portion-widened shape which is increasing in sheet width gradually from its distal side, defined with respect to a direction of insertion of the mounting member into a mounting hole (26) in a vehicle body (25), to its intermediate portion, and then is decreasing in sheet width gradually from the intermediate portion to its proximal side defined with respect to the inserting direction, and this mounting member is inserted into the mounting hole and opposite side edges (16a) of the mounting member are brought into sliding contact with an inner edge (26a) of the mounting hole, so that the mounting member is curved between this inner edge and a switch body, and the opposite side edges are press-contacted with the inner edge of the mounting hole by a restoring resilient force of the mounting member.

Abstract: Each mounting member (16) is formed by a resilient sheet of an intermediate portion-widened shape which is increasing in sheet width gradually from its distal side, defined with respect to a direction of insertion of the mounting member into a mounting hole (26) in a vehicle body (25), to its intermediate portion, and then is decreasing in sheet width gradually from the intermediate portion to its proximal side defined with respect to the inserting direction, and this mounting member is inserted into the mounting hole and opposite side edges (16a) of the mounting member are brought into sliding contact with an inner edge (26a) of the mounting hole, so that the mounting member is curved between this inner edge and a switch body, and the opposite side edges are press-contacted with the inner edge of the mounting hole by a restoring resilient force of the mounting member.

Abstract: A mounting bolt 30 has a disclike flange portion 30b formed on an end of a tightening portion 30a. A switch bracket 28 is fixed to a screw hole 12 by tightening the bolt 30 with the bolt 30 inserted into a mounting hole 29 formed so as to have the same diameter as the screw hole 12. A rubber cover 21 covers the switch bracket 28, and has an annular seal portion 21a formed thereon. The seal portion 21a is larger in diameter than the mounting hole 29 and smaller in diameter than the flange portion 30b. A stepped portion 30c is formed on the bolt 30 in such a manner that a surface of contact thereof with the bracket 28 extends in parallel to the bracket 28, that the diameter thereof is larger than the mounting hole 29 and smaller than the seal portion 21a, and that the length thereof in an axial direction is such that the flange portion 30b biases the seal portion 21a at the time of tightening the bolt 30.