| 摘要 |
PROBLEM TO BE SOLVED: To reduce even manufacturing cost, by installing a stopper part only when a cab is an overturn time protection structure, by also simply and easily welding the stopper part with a simple structure, for installing a cab-support beam and a cab overturn regulation device via a vibration-proofing mount of a cab support structure.SOLUTION: A cab support structure (18) comprises a stopper part (30) of a box structure arranged between an inside frame (20) and an outside frame (22) of a machine body frame (8) and respectively joined to a rear side beam and the outside frame, in a corner part for abutting between a front side beam (24) and a rear side beam (26) for supporting the front-rear of a cab (10) via the vibration-proofing mount, a central beam (28) positioned between these, the rear side beam and the outside frame. |
