| 摘要 |
PROBLEM TO BE SOLVED: To provide a mud dropping device having excellent durability and workability and high mud dropping efficiency. SOLUTION: In this mud dropping device 10 to remove mud, etc. adhered to the surface of a hose 18, a four-joint link mechanism is constituted of a guide plate 42 for delivering the hose 18, an upper part stay 48, a lower part stay 52 and a link plate 58. At distal end parts of the upper part stay 48 and the lower part stay 52, upper part and lower part rollers 60 and 62 are mounted. The hose 18 is passed between the rollers 60 and 62. When delivering the hose 18, the hose 18 pushes the upper roller 60 to widen a space between the rollers 60 and 62. When taking up the hose 18, the hose 18 conversely pushes the lower part roller 62, the space between the rollers 60 and 62 is narrowed, and the hose 18 is caught between the rollers 60 and 62 to remove mud, etc. COPYRIGHT: (C)2006,JPO&NCIPI
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