| 摘要 |
PURPOSE:To make a reciprocative turn causing device compact and render its operation accurate and sure, by coupling one end of a rack to the tip of a crank arm, engaging an output pinion with the rack, and securing the output pinion on an output shaft. CONSTITUTION:One end of a rack 4 is coupled by a crank pin 3 to the tip of a crank arm 2 secured on a torque input shaft 1. An output pinion 6 secured on an output shaft 5 is engaged with the rack 4. As a result, the distance between the input shaft 1 and the output shaft 5 is reduced so that a reciprocative turn causing device is made compact. Since constant torque acts to the output shaft 5, an accurate and sure operation is enabled. |
