Title:
DREDGING DEVICE
Document Type and Number:
Japanese Patent JP3212582
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a dredging device capable of reducing the influence even if a long or large obstacle is present in the earth and sand of water bottom and preventing the obstacle from blocking an earth and sand suction port.
SOLUTION: This device comprises a dredging operation part 30 provided on the tip part of a ladder 10 extended from the hull 20 of a dredger and vertically or laterally rotatable about the base end part connected to the hull 20, and arranged in the water bottom by the rotation of the ladder 10 to perform dredging and sucking operation; a pump provided on the hull 20 and driven so as to suck and carry the earth and sand or the like dredged by the dredging operation part 30 to the earth and sand suction port 32a; and a cylindrical carrying passage member for connecting at least the pump to the dredging operation part 30 to carry the earth and sand or the like. The dredging operation part 30 has a bucket 38 rotatably provided through a bendable arm 36.
Inventors:
Yoshihiro Shimada
Application Number:
JP35168399A
Publication Date:
September 25, 2001
Filing Date:
December 10, 1999
Export Citation:
Assignee:
Nitto Daito Industry Co., Ltd.
Dam water source environment maintenance center
Dam water source environment maintenance center
International Classes:
E02F3/88; B63B35/00; E02F3/90; (IPC1-7): B63B35/00; E02F3/88; E02F3/90
Domestic Patent References:
| JP53142034A | ||||
| JP6306886A | ||||
| JP4942083A |
Attorney, Agent or Firm:
Yoshiaki Yamaki