| 摘要 |
PURPOSE:To reduce the reaction force of a speed control lever and improve its operating property, by providing a roller which changes the spring fulcrum of a force transmission lever in response to the movement of the speed control lever. CONSTITUTION:When an accelerator pedal is depressed to a fuel increasing direction, a cam 39 is rotated and an operating rod 36 is pushed down. At that time, a roller 18 is moved down on the back of a leaf spring 31 to change the spring fulcrum of a force transmission lever 17 to apply a spring force corresponding to engine rotational frequency corresponding to the depressed quantity of the peal. As a result, the lever 17 thrusts a shifter 14 toward a flywheel mechanism 12 so that a driving lever 15 turns clockwise centering a support shaft 24; a driven lever 16 is tumbled counterclockwise and a control rack 52 is moved to a fuel increasing direction through a link 29. According to this constitution, the reaction force of a speed control lever 19 is reduced. |
