| 摘要 |
PURPOSE:To make a starter compact in size, besides lightweight and absorb an impact as well as to aim at the promotion of low vibration and noiseless in design, by supporting an internal gear floatingly in a way of inserting a projection of a casing's inner end face into an engaging groove installed in one end of the internal gear, while making up the starter into such a structure as rendering the internal gear unrestricted by the casing inner circumference. CONSTITUTION:With a key switch turned on, a sun gear 9f gets turning so suddenly, and turning force to be imposed on the sun gear 8f is transmitted to an internal gear 15, while excessive impact torque produced by a motor is absorbed by means of elastic deformation in an internal gear fixed pin 10c and a rim part of the internal gear 15. After an amount of the elastic deformation in the internal gear 15 and the internal gear fixed pin 10c becomes maximum, a carrier 14a and an output shaft 14 both start their rotation, and this turning force is transmitted to a pinion 20a, making an internal combustion engine start. And, the internal gear can be floated as much as a portion for the amount of elastic deformation as a cantilever beam of a projection installed in a reduction gear casing, while the elastic deformation in the internal gear rim part also is not restricted in its outer circumference so that the amount of elastic deformation may be secured large enough, meaning that it is effective for uniform distribution in power. |
