| 摘要 |
<p>PURPOSE: To hold watertightness between both case half bodies by providing a pressing protruding part protrusively from the bottom part of a flexure absorbing groove to the inside of a fit-in groove at the time of jointing a pair of case half bodies. CONSTITUTION: In a case half body 63, a pressing protruding part 63a opposed to the cross direction center part of a fit-in groove 62a in the jointed state of the case half body 63 to the other case half body 62 is formed over the whole periphery of a seal part 63h. A seal member 70 is fitted into the fit-in groove 62a of the case half body 62, and required electric equipment is attached. After fitting a motor 82 or the like to the other case half body 63, fixing screws are screwed into threaded holes 71, 72 from corresponding threaded holes 75, 76. The seal member 70 is crushed hard at the cross direction center part by the pressing protruding part 63a biting in from the upper part so as to be pushed open laterally and at the same time swollen upward being regulated by the inner wall of the fit-in groove 62a, thereby generating flexure 70K. At this time, a flexure absorbing groove 63j is positioned above the seal member 70, so that this flexure 70K is accommodated in the flexure absorbing groove 63j.</p> |
