| 摘要 |
PROBLEM TO BE SOLVED: To provide a semi-crawler tractor which supports a front side of a machine body by wheels, which supports a rear side of the machine body by crawlers, and which reduces a manufacturing cost of drive wheels.SOLUTION: A drive wheel 10 of a semi-crawler tractor 1 includes: a disk 25 which is attached to a flange part 5a of a rear axle 5; right and left wheels 26 which are fixed to an outer peripheral part of the disk 25; and a plurality of pins 27 which are attached between the right and left wheels 26 and engaged with driving projections 17a of the crawler 17. The wheel 26 is formed in an annular shape by punching-out or cutting from a steel plate; an inner peripheral part has a plurality of protruding parts 26 which are arranged at predetermined intervals in a circumferential direction; the disk 25 is formed from a residual member on the inner peripheral side of the wheel, which is produced by the punching-out or the cutting; an outer peripheral part has a plurality of protruding parts 25a which are arranged at predetermined intervals in a circumferential direction; and the wheel 26 and the disk 25 are integrally configured by making the protruding parts 26a and 25a overlap each other in a side view and fixing them. |
