| 摘要 |
<p>A device (1) serving as a control mechanism and a transmission suitable for use in conjunction with a rotary machine of the 'cat and mouse' type. The device (1) comprises a housing (2) from which extends a first (3) and second (4) shaft, the shafts (3, 4) being coaxial. The device (1) is characterized in that the second shaft (4) terminates in a frame (5) which rotates in company with rotation of the second shaft (4). The device (1) further comprises a first (6) and a second (7) annular bevel gear, which first (6) and second (7) annular bevel gears are fixedly mounted to the housing (2), are coaxially aligned with the first (3) and the second shafts (4), and are spaced apart allowing the frame (5) to be freely rotatable therebetween. A first (8) and second (9) pinion gear are basically mounted in the frame (5) with an axis of rotation offset from the perpendicular to the common axis of the first (3) and second (4) shafts, such that the first pinion gear (8) is in engagement with the first annular bevel gear (6) only and the second pinion gear (9) is in engagement with the second annular bevel gear (7) only. When the second shaft (4) and the frame (5) rotate, the first (8) and second (9) pinions are in engagement with their respective annular bevel gear (6, 7) and rotate in the same direction, there being a transfer element (10) mounted in the frame (5) between the pinion gears (8, 9) in engagement with the first shaft (3) to transfer a simple harmonic backward and forward rocking oscillation thereto or therefrom.</p> |
