TRUCK FRAME FOR CONSTRUCTION MACHINE

摘要

PROBLEM TO BE SOLVED: To improve stability in operation by reducing a gap between a yoke of an idler wheel and a yoke guide and to improve workability in assembling by reducing the number of parts. SOLUTION: A truck frame 11 for a hydraulic excavator is composed of a center frame 12 and a left and a right side frame 15, 15 positioned in both of left and right sides of the center frame 12 or the like. An idler wheel bracket 21 provided on one side of front or rear direction of each side frame 15 is composed of a left side plate member 22A and a right side plate member 22B separating in left and right and extending in front and rear direction and having a left yoke guide 24A and a right yoke guide 24B formed as one body and an upper plate member 27 connecting upper end sides of the side plate members 22A, 22B each other. The yoke of the idler wheel is guided slidably in a front and rear direction between the left and the right yoke guides 24A, 24B. COPYRIGHT: (C)2003,JPO