| 摘要 |
PROBLEM TO BE SOLVED: To settle a roof guard within a transportation limit height with simple equipment and operation. SOLUTION: The roof guard 8 for protecting the roof of a cabin 4, and a front guard 14 for protecting the front face, are connected by a hinge 16. The roof guard 8 is slid along a guide groove 9 of a guide rail 7 to turn the front guard 14 simultaneously around the lower end side as the center to move into a normal working position and a retreat position for transportation where the roof guard 8 is located in a lower position than that. COPYRIGHT: (C)2006,JPO&NCIPI
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