Title:
COMPRESSED AIR SUPPLY METHOD TO UNDERWATER WORKING MACHINE AND DEVICE
Document Type and Number:
Japanese Patent JP3568268
Kind Code:
B2
Abstract:
PURPOSE: To improve workability and safety by supplying compressed air pressure of which is the same as or slightly higher than underwater pressure to a part requiring supply of the compressed air of a working machine from above the water surface through an umbilical cable.
CONSTITUTION: An umbilical cable 11 gathering lines of electric, communication and electrical control signals, etc., which are power sources of a working machine and a supply line of compressed air into one is connected to a distributor 12 of the working machine 1. Thereafter, compressed air sent from a compressor on the water surface is supplied to cavities in an arm 14 and a boom 15 by pressure the same as or slightly higher than hydraulic power pressure in the circumference through the umbilical cable 11, the distributor 12, an air supply line 3 and a pressure regulator 13. Additionally, in the case when the working machine 1 likely overturns underwater or overturns, compressed air is supplied to a balance regulating member 17. Additionally, while the working machine 1 is operated underwater, compressed air is supplied to a diver through the umbilical cable 11.
Inventors:
Nobushige Komatsu
Application Number:
JP6317595A
Publication Date:
September 22, 2004
Filing Date:
March 22, 1995
Export Citation:
Assignee:
Toa Construction Industry Co., Ltd.
Far East Construction Co., Ltd.
Far East Construction Co., Ltd.
International Classes:
E02F5/00; B63C11/00; E02F9/00; (IPC1-7): E02F5/00; B63C11/00
Domestic Patent References:
| JP193238U | ||||
| JP85119Y2 |
Attorney, Agent or Firm:
Shinichi Ogawa
Takashi Noguchi
Kazuhiko Saishita
Takashi Noguchi
Kazuhiko Saishita