| 摘要 |
PROBLEM TO BE SOLVED: To improve comfortableness by restraining vibration of an operation room by positioning one of plural beams under a front end part of the operation room. SOLUTION: A front beam 1 is arranged so as to be positioned under a front end part of an operation room 75 as well as to become a pair of an external appearance shape of the operation room 75. The under surface of the front beam 1 is inclined toward the front end part of the operation room 75. In this case, a front beam 1 side mount 87 can be arranged in the operation room front end part, so that a distance between front/rear mounts 87 can be secured as large as possible. Thus, vibration of the operation room 75 at moving time is restrained to improve comfortableness. Since the under surface of the front beam 1 is inclined toward the front end part of the operation room 75, there is no fear of interfering with a hood in a lower traveling body at turning time.
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