| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a watertight door device capable of being pushed up and to stand up even if sand and dust are deposited in a storage recessed part body. <P>SOLUTION: A support arm 22 and a driving wheel 29 are attached to a driving shaft 20, and a turn arm 24 and a turn wheel 28 are attached to an intermediate shaft 23 connected with a tip part of the support arm 22. By driving the driving shaft 20, a tip part 24a of the turn arm 24 is rotated upward through the driving wheel 29 and the turn wheel 28 and a basic part 24b is raised upward to push a tip part 3a of the waterdoor 3 connected with the tip part 24a of the turn arm 24 upward. <P>COPYRIGHT: (C)2005,JPO&NCIPI |
