Patent ID: 8246107

Claim:
A cab stopper device provided between a restricting portion provided on a machine frame of a work machine and a cab of the work machine, said cab stopper device comprising: a through hole formed in a floor plate of the cab; and a stopper, which is inserted in the through hole from above, the stopper including an engaging portion at its lower end that projects downward from the through hole, the engaging portion being engageable with the restricting portion, wherein the relative position of the through hole and the stopper is changeable between an inserting position, at which the stopper is insertable in the through hole with the engaging portion not contacting the restricting portion, and an engaging position, at which the engaging portion is engageable with the restricting portion with the stopper inserted in the through hole, wherein the floor plate has an inhibiting portion for inhibiting the stopper located at the engaging position from moving downward, wherein the upper end portion of the stopper includes a securing portion, which projects to the side of the stopper, wherein the through hole includes an upper through hole formed in the upper surface of the floor plate and a lower through hole formed in the lower surface of the floor plate, the lower through hole having a smaller dimension than the upper through hole, and wherein the inhibiting portion is formed on the periphery of the lower through hole, and the inhibiting portion serving as a support surface, which contacts the securing portion of the stopper and supports the stopper.