| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a waterproof plate which allows the sure operation of a switch by a small force. <P>SOLUTION: The waterproof plate comprises: a synthetic resin made plate 1 formed into a rectangular plate shape; a cover 2 which is formed into an oblong square shape by using a transparent synthetic resin having elasticity and translucency, and attached from the rear face side of the plate 1; and a packing 3 which is formed into a rectangular frame shape by using a synthetic resin having elasticity, and attached from rear face sides of the plate 1 and the cover 2. An opening window 5 is formed at the center of the plate 1, and an operation protrusion 10 is formed at the cover 2 by making a region corresponding to the opening window 5 protrude toward the front face side. A seal piece 11 protruding toward the rear face side almost all over the whole periphery is formed at the external peripheral rim of the cover 2, and the cover is attached to the plate 1 by the seal piece 11. Furthermore, a bellows-shaped flexible part 12 is formed between the operation protrusion 10 of the cover 2 and the seal piece 11, and the flexible part 12 has flexibility with respect to a pressing force which reciprocally presses the operation protrusion 10. <P>COPYRIGHT: (C)2008,JPO&INPIT</p> |
