| 摘要 |
<p>PURPOSE:To decrease the loss torque due to limiter torque by decreasing the limiter torque due to swinging. CONSTITUTION:The 3rd gear 11 is provided rotatably between a lower stopper fitted to a boss and the 2nd gear 5 at the peripheray of the boss of the 2nd gear 5 and the 3rd gear 11 is frictionally coupled to the 2nd geasr 5 via a friction joint 7. Further, the 3rd gear 11 meshes with a fixed rack 12. The limiter torque (friction torque) T2 between the 3rd gear 11 and the 2nd gear 5 is 2/33 of a conventional torque and the loss torque is decreased remarkably. Moreover, a turning arm 2 is turned in the arrow (b) when the 1st gear 3 is turned in the arrow (a).</p> |
