| 摘要 |
PROBLEM TO BE SOLVED: To suppress deformation of a cabin by absorbing a load exceeding an elastic limit of a vibration-proof mount into a portion other than a cabin. SOLUTION: On condition that structure supporting the cabin 4 on an upper frame 3 through a vibration-proof mount of an elastic body with vibration-proof function, an auxiliary support member 17 is disposed between the upper frame 3 and the cabin 4. With respect to the load exceeding the elastic limit of the vibration-proof mount and separating the cabin 4 from the upper frame 3, the auxiliary support member 17 is extended and deformed by the magnitude of the load and absorbing the load therein. COPYRIGHT: (C)2009,JPO&INPIT
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