| 摘要 |
PURPOSE:To improve the operationability and fuel consumption by transferring to direct-coupled drive condition upon increase of rotary speed of the output shaft in speed change drive system. CONSTITUTION:A conical rotary chip 8 is provided with a transmission face 8b having recessed cross-section engagable frictionally with a transmission wheel 10 on the input shaft 1 and a flat transmission face 8c engagable frictionally with a raceway ring 12 as well as a conical face 8a. While speed change mechanism section 3 has a conical rotary chip 8, a speed change ring 9, a transmission wheel 10 and a raceway ring 12 and two transmission faces 8b, 8c are provided to the conical rotary chip 8 as well as the conical chip 8a. The speed change ratio of regulation gear system 4 is selected such that V-drive and C-drive transmission systems will be synchronous upon collision of speed change ring 9 against the stopper, and upon collision of speed change ring 9 against the stopper to bring the rotary speed of said ring 9 to the maximum, it is switched to C-drive transmission system through a switching unit 5. |
