農業機械学会誌
Online ISSN : 1884-6025
Print ISSN : 0285-2543
ISSN-L : 0285-2543
小型耕耘機の牽引力に及ぼす重錘の負荷機構 (第3報)
森田 昇田谷 暢久
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1960 年 21 巻 4 号 p. 129-132

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Max. pull increased with increment of the weight and the distance of position of balance weight loading, but the handle reaction reduced.
On the no-wheel-weight loading, Ka (balance weight/weight of garden tractor)×100 per cent was in order of weight of balance weight load-ing 10kg>″20kg>″30kg, and on the wheel-weight loading, it was 30kg>20kg>10kg.
That is, when the ratio of balance weight loading and weight of garden tractor was larger, the augmentation of max. pull was dropped to lower efficiency.
When hitching point was transfered to the front of driving-shaft, max. draft force increased and handle reaction reduced. Also max. draft force increased with the increment of position of center of gravity, and on the no-wheel-weight loading, max. draft force increased like straight line to 20cm of position of center of gravity, and on the wheel-weight loading, to 30cm or more of it.
Therefore, as the weight of garden tractor became larger, max. draft force did not reduce the augmentation to remote distance of center of gravity.

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