Patent ID: 8657251

Claim:
A cab supporting apparatus of a work machine in which a cab frame is supported on brackets provided at a plurality of positions of a vehicle body frame with vibration proofing mount means, the cab supporting apparatus comprising: limiting means for limiting a movement at least in a vertical direction of the cab frame is provided between the brackets and the cab frame, wherein the limiting means is provided at least at two positions, the limiting means includes lower limiting portions close to the brackets, and upper limiting portions close to the cab frame, and each lower limiting portion is integrally structured with one of the bracket, and wherein each of the lower limiting portions forms a recess which opens inwardly, and a hook portion is formed in a distal end of each of the lower limiting portions on the basis of the formation of the recess, wherein each of the upper limiting portions forms a recess which opens outwardly, and a hook portion is formed in a distal end of each of the upper limiting portions on the basis of the formation of the recess, wherein, in a state in which the recess of each of the lower limiting portions opposes the recess of each of the upper limiting portions, the lower limiting portion and the upper limiting portion are respectively positioned within the corresponding recesses, and the hook portions respectively oppose an outer surface of the upper limiting portion and a lower surface of the lower limiting portion, wherein a first gap is formed between an upper surface of the lower limiting portion and an upper edge portion of the recess of the upper limiting portion, wherein a second gap is formed between a lower surface of the lower limiting portion and a lower edge portion of the recess of the upper limiting portion, wherein a movement in the vertical direction of the cab frame is allowed with respect to the vehicle body frame, within the range of the first and second gaps.