| 摘要 |
<p>PURPOSE: To form a simple and accurate waterproof structure of a motor. CONSTITUTION: A brush 88 is provided at an inner upper part of a motor case 70 of a motor 52, a terminal 100 to be connected thereto is made to vertically penetrate a cap 74 of the motor case 70, and the penetration part to the cap 74 is sealed with an O-ring 102. On the other hand, a water drain hole 110 is formed at a bottom of a lower part. 72 of the motor case 70. Even when a penetration part between a motor shaft 82 and the lower part 72 is not provided with a waterproof seal and made into an opened type, waterproofness for the brush 88 can be secured by only the O-ring 102, and water infiltrating from the underside is rapidly discharged from the drain hole 110.</p> |
