| 摘要 |
The force multiplier tool comprises a planocentric hypocycloidal gearing mechanism adapted for hand tool use. Specifically, the tool comprises a ring gear, a first and a second pinion gear disposed inside said ting gear and revolving about an input eccentric shaft, a plurality of drive pins, and an input shaft and an output shaft. The input eccentric shaft provides a camming action which force the pinions to revolve within the ring gear in a planocentric hypocycloidal path, said first and second pinion gears being separated in frequency by one hundred and eighty degrees. The pinion gears have a plurality of drive holes having diameters larger than the diameter of the drive pins such that when the pinion gears are rotating, the drive pins turn the output shaft. Importantly, the second pinion gear may be omitted and the number of drive pins and drive holes reduced to one while still allowing the tool to operate, although the use of two pinions provides better dynamic balance and continuous driving.
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