| 摘要 |
PROBLEM TO BE SOLVED: To provide a travel transmission structure capable of smoothly performing a turning state of a combine harvester. SOLUTION: This travel transmission device comprises a differential mechanism 6 for transmitting differential force to right and left crawler type travel devices 1, and a pair of friction brakes 7 and 7 for applying brake force relative to the differential output of the differential mechanism 6. It is provided with an auxiliary clutch mechanism 35 that brakes the friction brakes 7 in a turning operation or releases braking of the friction brakes 7 in a straight travel, and interlocks axles 1A and 1A of the right and left crawler type travel devices 1 and 1. The auxiliary clutch mechanism 35 is always set in a half-clutch state during travel. COPYRIGHT: (C)2005,JPO&NCIPI
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