Title:
掘削装置
Document Type and Number:
Japanese Patent JP4633454
Kind Code:
B2
Abstract:
To provide an excavator improving a drainage efficiency and enhancing an excavation efficiency as the result of an improvement in the drainage efficiency because the suction head of a drainage pump draining water (slurry) in an excavated pit is reduced.
The excavator 18 with an excavating bit 20 excavating the excavated pit 17 and a suction port 19a sucking water in the excavated pit and the drainage pump 22 being mounted on the excavator in a communicable manner to the suction port and draining water in the excavated pit to the outside are installed in the excavated pit 17, to which water is injected.
COPYRIGHT: (C)2006,JPO&NCIPI
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Inventors:
Junichi Kobata
Shoji Yoshida
Shoji Yoshida
Application Number:
JP2004366191A
Publication Date:
February 16, 2011
Filing Date:
December 17, 2004
Export Citation:
Assignee:
Hokuto Industry Co., Ltd.
Tokyu Construction Co., Ltd.
Tokyu Construction Co., Ltd.
International Classes:
E21B3/04; E02D7/00
Domestic Patent References:
| JP58111281U | ||||
| JP2001311176A | ||||
| JP57119087A | ||||
| JP49063211A |
Attorney, Agent or Firm:
Hisashi Hatano
Shunguchi Sekiguchi
Shunguchi Sekiguchi