| 摘要 |
PROBLEM TO BE SOLVED: To simplify the constitution of a gear shifter of six forward gear stages and two reverse gear stages by providing a friction clutch capable of connecting and disconnecting torque transmission without directly connecting an input shaft and a single pinion planetary gear of a first row and switching six friction engagement elements by planetary gears of three rows. SOLUTION: In a gear shifter 10 disposed between an input shaft 11 to be an output shaft of a torque converter 2 and an output shaft 12 to be connected with an axle, first to third planetary gears G1 to G3 are provided and a ring gear R1 of the first planetary gear G1 is connected with the input shaft 11 via a clutch C1. A ring gear R2 of the second planetary gear G2 is connected with a carrier PC3 of the third planetary gear G3, and a sun gear S2 of the second planetary gear G2 is connected with a sun gear S3 of the third planetary gear G3. The input shaft 11 and the ring gear R2 of the second planetary gear G2 are connected by a clutch C3. The sun gear S3 of the third planetary gear G3 and a shaft element J4 are connected by a clutch C4.
|
