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US 6,179,083 B2Granted
Steering apparatus for vehicle
AssigneeToyota Jidosha Kabushiki Kaisha
InventorYoji Yamauchi
Life of this patent
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Abstract
A planetary gear mechanism is constructed of sun gear, planetary gears, and ring gear. The planetary gears are fixed to a carrier integral with an input shaft. The output shaft is coupled to the ring gear. The transmission ratio can be changed by rotating the sun gear through the worm wheel and worm gear, and agreement is achieved between rotating directions of the input shaft and output shaft.
Claims2
A steering apparatus for vehicle comprising:
- (A) an input shaft axially coupled to a steering shaft disposed to rotate under the control of a steering wheel;
- (B) a sun gear disposed concentrically with said input shaft;
- (C) a ring gear in which said sun gear is arranged;
- (D) planetary gears disposed between and kept in mesh with said sun and ring gears;
- and
- (E) an output shaft disposed to rotate in unison with said ring gear, wherein the input shaft and the planetary gears are connected so that the input and output shafts rotate in the same direction.
3 more elements
Dependencies are inferred from the claim text.