ROLLOVER FRAME STRUCTURE FOR CONSTRUCTION MACHINE

摘要

A bulldozer 10 comprises a boat shaped main frame 40 and a substantially U-shaped gate frame 41 as a frame structure that mounts a cap 11 having a rollover protection structure (ROPS) and forms the skeleton of the bulldozer 10. The gate frame 41 is installed on the upper portion of the main frame 40, and has a pair of left and right columns 41a, 41b that are disposed along a substantially vertical direction, and a beam 41c that connects the upper ends thereof. Mount units 41ca for mounting the cab 11 and stopper units 41cb for firmly grasping the cab 11 are arranged on the upper surface of the beam 41c.