| 摘要 |
A swiveling work machine includes a swivel deck (2), an engine (3) and an operator's seat (12) which are mounted on the swivel deck and a protector (13) for the operator's seat (12) mounted erect on the swivel deck. The swivel deck mounts, at a rear portion thereof, a support frame (4) having four post portions disposed around the engine (3). Two rear post portions (4C, 4D) of the support frame have upper ends thereof connected via a rear beam member (62). The rear beam member includes an attaching portion (62a) for the operator's seat protector (13) to which portion the protector (13) is attached.
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