| 摘要 |
PROBLEM TO BE SOLVED: To provide an underground storage type gate device capable of performing smooth power transmission without causing looseness by composing a lifting device for lifting horizontal members, of a screw (a spiral screw) and a slider vertically moved by the rotation of the screw. SOLUTION: In this underground storage type gate device, the shutoff horizontal members 3, 4, 5 are liftably disposed between opposedly arranged posts 2, 2, and the horizontal members 3, 4, 5 are housed in an underground housing part 16 when lowered. The gate device is characterized in that the lifting device 15 for lifting the horizontal members 3, 4, 5 is provided with the screw 13 and the slider 14 vertically moved by the rotation of the screw 13. COPYRIGHT: (C)2004,JPO
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