| 摘要 |
PROBLEM TO BE SOLVED: To provide a reaping part driving apparatus capable of suppressing the vertical oscillation caused by the driving of a reaping apparatus in higher order. SOLUTION: The driving apparatus is provided with a laterally extending reaping transmission shaft 16 having right and left raising driving output parts (a) and an input part in the middle of the right and left ends. A crank shaft 20 having a crank mechanism 28 to reciprocate the reaping blade 25 of a clipper-type reaping apparatus 8 is interlocked with the reaping transmission shaft 16 through a bevel gear mechanism 38 and the crank shaft 20 is provided with a 1st balance weight 34 to resist against the lateral motion of the reaping blade 25. A counter shaft 39 interlocked with the reaping transmission shaft 16 through the bevel gear mechanism 38 and rotating in a direction opposite to the crank shaft 20 is placed coaxially to the crank shaft 20. The counter shaft 39 is provided with a 2nd balance weight 40 to resist against the lateral motion of the reaping blade 25.
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