DRIVING DEVICE

To provide a driving device having high degree of freedom in layout of input/output portions, and capable of transmitting power to the output portion with high efficiency with simple constitution, and being miniaturized.SOLUTION: In a driving device 1, a number of steel balls 5, an endless circulation passage portion 2 for housing a number of steel balls circularly movably in a full state, an input portion 3 including a sprocket-shaped input rotation engagement body 31, and an output portion 4 including a sprocket-shaped output rotation engagement body 41 are integrally constituted by a base portion 6. The steel balls 5 are respectively engaged with a plurality of input engagement portion 34 of the input rotation engagement body 31 and a plurality of output engagement portions 44 of the output rotation engagement body 41, the steel balls 5 are pushed out from the input engagement portion 34 at a discharge position when the input rotation engagement body 31 is rotated, a number of steel balls 5 are pressed and moved by following steel balls 5, and the steel balls 5 are engaged with the output engagement portion 44 of the output rotation engagement body 41 at a supply position, thus the output rotation engagement body 41 is rotated.SELECTED DRAWING: Figure 1 【課題】入出力部の配置自由度が高く、簡単な構成で動力を高効率で出力部に伝達が可能で、小型化可能な駆動装置を提供する。【解決手段】駆動装置１は、多数の鋼球５と、多数の鋼球を循環移動可能に満杯状態で収容する無端の循環経路部２と、スプロケット形状の入力回転係合体３１を備えた入力部３と、スプロケット形状の出力回転係合体４１を備えた出力部４とを基部６により一体的に構成する。入力回転係合体３１の複数の入力係合部３４と出力回転係合体４１の複数の出力係合部４４にそれぞれ鋼球５が係合され、入力回転係合体３１を回転すると、排出位置の入力係合部３４から鋼球５が押し出され、多数の鋼球５が後続の鋼球５で押圧されて移動し、供給位置で出力回転係合体４１の出力係合部４４に鋼球５が係合して出力回転係合体４１を回転させる。【選択図】図１