| 摘要 |
PROBLEM TO BE SOLVED: To improve control accuracy of start advance by the eliminating portion of intervention of frictional loss during transmission of force from a start advancing spring to both centrifugal weights. SOLUTION: A temperature sensing operating means 7 is composed of a shape memory spring 8 formed by manufacturing a compression coil spring from a shape memory alloy material. The shape memory spring 8 and the start advancing spring 6 are located between a pair of centrifugal weights 3, 3 and arranged concentrically with a weight return spring 5. The weight return spring 5 is provided inside one centrifugal weight 3, and the start advancing spring 6 and the shape memory spring 8 are provided inside the other centrifugal weight 3. The shape memory spring 8 and the start advancing spring 6 are arranged insert-fitted inside and outside to each other. COPYRIGHT: (C)2006,JPO&NCIPI
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