| 摘要 |
PURPOSE:To improve the efficiency of adjusting work and heighten the degree of freedom of design of operating direction, by integrating a throttle valve opening degree adjusting screw with a switch body for turning on and off the contacts of an electric circuit and by enabling operation in a single direction. CONSTITUTION:A throttle valve lever 15 for urging a throttle valve 13 by a spring 16 in such a direction as to move the valve back is secured on a throttle valve shaft 14 integrated with the throttle valve located in an intake passage 12. A detector 17 for the idling degree of opening of the throttle valve 13 is placed so that the detector corresponds to the bent end 15A of the lever 15. The detector 17 has a casing 18 which is made of an electric insulator and hung with an adjusting screw 26 from a support 24. A switch body 20 made of an electroconductive material is placed so that the switch body corresponds to terminals 19A, 19B located on the step 18A of the casing 18. The switch body 20 is integrally provided with a member 22, which is protruded from the casing 18. A spring 23 of lower elastic force than the spring 16 urges the switch body 20 in such a direction to separate it from the terminals 19A, 19B. |
