| 摘要 |
PROBLEM TO BE SOLVED: To prevent infiltration of water droplets into a case by a simple and inexpensive configuration.SOLUTION: An engine start switch (1) includes a circuit board (6) mounting an electronic component, a case (3) formed cylindrically by a peripheral wall (31) surrounding the circuit board, where the end at least on one side is open, and a support member (5) supporting the circuit board on the inside of the case, and extending from the one end side supporting the circuit board toward the open end of the case. The support member has an outer surface facing the inner surface (34) of the peripheral wall with a space, and the gap at one end of the support member is wider than the gap at at least a part other than one end of the support member. |
