| 摘要 |
<P>PROBLEM TO BE SOLVED: To suitably avoid the direct contact of a vent hole position with water by eliminating the exposure of a vent hole to the outside. <P>SOLUTION: A housing fixing hole 20b fixed to a base 12 via a housing attachment screw 62 is formed in a flange 20a of a housing body 68. The housing fixing hole 20b is formed in a state of communicating with a housing chamber 48. The housing fixing hole is formed so that a housing chamber 48 and an external space can provide ventilation through a portion for screwing the housing attachment screw 62 and a bush 78 to each other, a meeting surface 100, and a fixing surface 106 when the base 12 and the housing body 68 are fixed to each other by means of the housing attachment screw 62. <P>COPYRIGHT: (C)2012,JPO&INPIT |
