| 摘要 |
PROBLEM TO BE SOLVED: To carry out reaping operation by driving a reaping machine and a feed chain at a prescribed rotation rate by operation of operation means provided in a main transmission shift lever even when traveling is kept in a suspension. SOLUTION: In a combine harvester, a first hydraulic continuously variable transmission (9) driving a reaping machine (3) and a feed chain (5) of a threshing machine (4) is provided and driving force of an engine (20) is constituted so as to transmit to the first hydraulic continuously variable transmission (9) after driving of the threshing machine (4) and a second hydraulic continuously variable transmission (22) driving a traveling apparatus (7) is provided and the first hydraulic continuously variable transmission (9) is subjected to variable speed drive, interlockingly with shift transmission of the second hydraulic continuously variable transmission (22) based on operation of a main transmission shift lever (10a) and a controlling apparatus (10b) is provided for driving the reaping machine (3) and the feed chain (5) at a prescribed rate by carrying out gearshift control of the first continuously variable transmission (9) in a state that traveling is suspended, from operation of an operation means (11) provided in the main transmission shift lever (10a). COPYRIGHT: (C)2009,JPO&INPIT
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