| 摘要 |
PROBLEM TO BE SOLVED: To obtain a watertight structure with highly reliable watertight function, low cost and recyclability. SOLUTION: A case 1 and a case 2 are mutually fitted and a groove 1a is formed around the fitting surface of the case 1. An insertion part 3a of a rubber-made circular packing 3 into the case 1 is integrated into the groove 1a of the case 1. Thereby, a projection part 1b of the case and a connection part 3b of the packing 3 are mutually fitted and integrated so as to cover the case 1 with the packing 3 so as to simply integrate the packing 3, and since further the packing 3 is provided with a rib 3c so that the face 2a of the case crushes the rib 3c of the packing 3 when the case 1 and the case 2 are made to fit. Thereby, the fitting part of the cases 1 and 2 is completely sealed, thus obtaining a watertight effect. Further, an intercase visual fitting part is all around covered so as to further heighten a watertight effect. |
