Title:
APPARATUS FOR OPERATING WATER GATE
Document Type and Number:
WIPO Patent Application WO/1999/029966
Kind Code:
A1
Abstract:
An apparatus for operating a water gate, having a door of the water gate provided in a water channel, and a means for vertically operating the door, characterized by comprising a pressure receiving plate fixed to the door via an operating rod, upper and lower air bags provided on the upper and lower sides of the pressure receiving plate, an air compressor for sending the air into each of the upper and lower air bags, and a change-over valve and a flow rate regulating valve which are provided between the upper and lower air bags and the air compressor, and which are adapted to switch or regulate the air sent into the upper and lower air bags, compressed air being sent into the air bags to move the pressure receiving plate, vertically move the door and open and close the door. This apparatus uses air as a medium, and is, moreover, adapted to drive the operating rod by the pressure of the air sent into the air bags, so that it has become possible to simplify the structure greatly.
Inventors:
IIDA AKIO (JP)
IIDA YOSHIO (JP)
IIDA YOSHIO (JP)
Application Number:
PCT/JP1998/005573
Publication Date:
June 17, 1999
Filing Date:
December 09, 1998
Export Citation:
Assignee:
IIDA AKIO (JP)
IIDA YOSHIO (JP)
IIDA YOSHIO (JP)
International Classes:
E02B7/36; E02B7/20; (IPC1-7): E02B7/36; E02B7/20
Foreign References:
| JPS5775021U | 1982-05-10 | |||
| JPH0280143U | 1990-06-20 |
Attorney, Agent or Firm:
Dobashi, Hiroshi (Ikeda 3-chome Kofu-shi Yamanashi, JP)
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