SPEED CHANGE GEAR UNIT FOR CAR

摘要

PROBLEM TO BE SOLVED: To reduce fuel cost, production cost and weight by receiving a two- stage sub-gear unit and joining one gear stage to a lower-gear-ratio gear stage of a main gear unit and the other gear stage to a higher-gear-ratio gear stage. SOLUTION: A gear element 24 used as an gear input for a differential gear unit 15 has a power flow passed through the differential gear unit 15 via a gear stage 23 or a gear stage 25 by a relative speed change clutch 26. A sub-gear stage 25 inserted in a torque transmission in the lowest forward gear ratio or a second sub-gear stage 23 allows connection to an output shaft 14. A gear stage 17 has a gear 41 mounted on an input shaft 13 for rotating the gear and the gear is engaged with a loose wheel 37 mounted on the shaft 14 and connected to the shaft 14 via the gear clutch 42. A gear stage 22 has a loose wheel 40 and engaged with a wheel 44.