| 摘要 |
PROBLEM TO BE SOLVED: To provide a sprinkler freely removably attached to an arm of a hydraulic excavator. SOLUTION: The sprinkler 21 is attached to the arm 2 of the hydraulic excavator 1 in a freely removable way and consists of the first boom 23 attached through a bracket 22 to the arm 2 in such a way as to allow free hoisting of the boom, the second boom 24 attached through the first link mechanism to the tip of the first boom 23 in such a way as to allow free hoisting of the boom, a cylinder 32 for the second boom hoisting the second boom 24 by operating the first link mechanism, the third boom 35 attached through the second link mechanism to the tip of the second boom 24 in such as way as to allow free hoisting of the boom, a cylinder 43 for the third boom hoisting the third boom 35 by operating the second link mechanism, a nozzle 46 attached to the tip of the third boom 35 and a water supply passage extending from the first boom 23 to the nozzle 46. COPYRIGHT: (C)2009,JPO&INPIT
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