| 摘要 |
PROBLEM TO BE SOLVED: To provide a throttle valve control device capable of reducing the number of component parts of a default mechanism and simplifying its configuration.SOLUTION: A throttle valve control device comprises a throttle body 12, a valve shaft, a throttle valve, a throttle gear 28, a controlling motor and a default mechanism 56. The default mechanism 56 comprises a return spring 66 having both spring hooks 68, 69, both gear hooks 62, 64 arranged at the throttle gear 28 and engaged with each of both spring hooks 68, 69, and both stoppers 58, 60 arranged at the throttle body 12 and engaged with both spring hooks 68, 69. Between the throttle gear 28 and the return spring 66 are arranged resilient contact means 76, 78 resiliently slidably contacted with each other when the throttle gear 28 is placed at the intermediate position.SELECTED DRAWING: Figure 4 |
