| 摘要 |
PROBLEM TO BE SOLVED: To constitute a load sensitive type reduction gear which is reducible in size, and can smoothly perform a changeover operation between a constant velocity transmission mode and a reduction transmission mode.SOLUTION: A plurality of first levers 41 are supported to a ring gear 20 so as to be oscillatory, and second levers 42 are supported to oscillation ends of the first levers so as to be oscillatory. An interlocking rotation mechanism 50 for deciding oscillation postures of a plurality of the first levers 41 is rotatably supported with a rotating axis as a center, and a first energization mechanism 46 which is composed of a spring is arranged for making an energization force which connects the first levers 41 to first engagement parts 33 act on the interlocking rotating mechanism 50. In a constant velocity transmission mode, the first levers 41 are engaged with the first engagement parts 33 of a carrier 30, and in a reduction transmission mode, the engagement of the first levers 41 is released, and the second levers 42 are engaged with second engagement parts 16.SELECTED DRAWING: Figure 8 |
