| 摘要 |
A rotational motion mechanism and an engine capable of converting a linear propulsion force into a torque with higher rigidity and smoothly in order to improve a performance such as energy conversion efficiency. A pair of axial guides (16a, 16b) are arranged in parallel in a first axial direction (X). A moving guide (22) extends between the pair of axial guides (16a, 16b) in a second axial direction (Y) perpendicular to the first axial direction (X) to be movable in the first axial direction (X). A moving body (24) is provided to be movable along the moving guide (22) in the second axial direction (Y). A rotating shaft (36) is rotatable about an axis perpendicular to the first axial direction (X) and to the second axial direction (Y). A lever section (38) is pivotally mounted at a portion (38c) thereof to the moving body (24), and is fixed at the other portion (38d) thereof to the rotating shaft (36) so that turning of the moving body (24) rotates the rotating shaft (36). A drive mechanism (41, 42, 45, 46) moves the moving guide (22) in the first axial direction (X). Regulation means (50, 51) reduces a variation in a rotating speed of the rotating shaft (36). |
