| 摘要 |
PROBLEM TO BE SOLVED: To obtain a travelling transmission of a harvester with further excellent work efficiency by avoiding enlargement of a gear pair for miniaturizing a mission case and by allowing shift transmission during travel of a machine body. SOLUTION: The travelling transmission serially includes a first transmission A for travelling which can freely shift to a plurality of stages and a second transmission B for travelling which can freely shift to a plurality of stages. The first transmission A comprises a gear transmission mechanism shifting by selectively switching an engagement state of a transmission gear by operating a manual operation tool. The second transmission B comprises a transmission including a speed difference mitigating means C for transmitting power by automatically and gradually decreasing speed difference occurring between a transmission upper side and a transmission lower side along with shifting operation, to obtain moving speed, reaping work speed, and low-speed reaping work speed. COPYRIGHT: (C)2011,JPO&INPIT |
