| 摘要 |
PROBLEM TO BE SOLVED: To provide a dredge device capable of efficiently dredging an object aiming at dredge while calmly making self-propulsion of the sea bed in a mobile state. SOLUTION: An arm 2 located on the forward F side of traveling repeats a reciprocating motion as one cycle consisting of one time of a going motion to a bending state from an expansion state projecting a spad 20b driven in the sea bed ground G to the forward F side of the traveling and one time of a return motion to the extension state by again projecting the spad 20b pulling out from the sea bed ground G to the forward F side of the traveling from the bending state. The other arm 2 located on the backward B side of the traveling repeats the reciprocating motion as one cycle consisting of one time of a going motion to the expansion state projecting the other spad 2b driven in the sea bed ground G to the backward side of the traveling from the bending state and one time of a return motion to again the bending state from the extension state by pulling the spad 20b out from the sea bed ground G. The time difference is made to occur in the reciprocation motions of two arms. COPYRIGHT: (C)2006,JPO&NCIPI
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