| 摘要 |
PURPOSE:To increase torque at a little loss by supporting the first planet gear meshed with an input gear and a concentric second planet gear with the first planet gear at one end of a first arm and the third planet gear becoming an output gear at another end of the first arm and a second arm. CONSTITUTION:The input gear 12 provided with a crank 11 is meshed with a first planet gear 13, and the second planet gear 14 provided concentrically with the first planet gear 13 with a fixed gear 15. The second planet gear 14 is meshed with a third planet gear 16 provided concentrically with a sprocket 17 for taking out the output. And, at one end of a first support arm 18, the first and second planet gears 13 and 14, and at another end the third planet gear 16 are supported. A second support arm 19 is fitted freely to the rotary shaft 20 of the input gear 12 at one end and also supports the third planet gear 16 at another end. |
