| 摘要 |
PURPOSE:To achieve desired speed-up rotation through small and thin unit by providing plural pinions which will gear even with a sun gear arranged coaxially with fixed internal gear and journaling said pinions to a disc on the input shaft. CONSTITUTION:A sun gear 4 integral with the shaft 4 is arranged coaxially with a fixed internal gear 1 then said gears 1, 3 are geared with plural (three, for example) pinions 2 arranged between them 1, 3. Each pinion 2 is journaled to a disc 5 integral with the shaft 6 penetrating through the shaft 4. The pinion 2 is revolved around the sun gear 3 while spinning through rotation of the shaft 6 thus to rotate the sun gear 3 through spinning force of the pinion 2. Consequently, the shaft 4 will rotate with increased speed thus to rotate the output rotary board 7 entrained with belt with high speed. |
