| 摘要 |
PURPOSE:To obtain a device which can be machined easily and enable of accurate transmission of rotation by constructing said device with first rotary body having a spiral hole, second rotary body having a guide groove, a fixed body having a long groove and an engaging chip while arranging both rotary bodies not in parallel. CONSTITUTION:A rotary body 1 is formed with a spiral hole 2 while a rotary disc 3 is provided with a guide groove 4 to be engaged with said hole 2. The stator 5 is also used as a shaft for supporting the rotary body 1 rotatably and formed with a long groove 6 and a circulation path 7 communicating between the opposite ends. Engaging chips or balls 8 are mounted in the circulation path 7 where the rotary shafts A and B for the rotary bodies 1 and 3 are arranged not to be in parallel. Consequently, a gear of complex shape is not required resulting in improvement of productionability. |
