| 摘要 |
<p>A key cylinder to be attached to an outer panel for a vehicle is provided. The key cylinder includes a cylinder body and a casing for accommodating the cylinder body therein. The casing has a drain hole formed at a lower portion thereof for discharging the water out of the casing and first and second swelling formed to project from a side wall thereof. Above the drain hole, the first swelling is formed so as to incline to an axial direction of the key cylinder. The lower end of the first swelling extends up to a lower part of the casing, apart from one end of the drain hole In the axial direction of the key cylinder. In operation, the water climbing down the side wall of the casing is guided by the first swelling and brought into the lower end of the first swelling. Consequently, without flowing up to the drain hole, the water can be prevented from sticking on the periphery of the drain hole.</p> |
