Twin-clutch-type-transmission

A twin-clutch-type transmission comprising a general input shaft, a first clutch, a second clutch, a first clutch output shaft connected to said first clutch, a second clutch output shaft connected to said second clutch, a sub shaft disposed parallel to said first clutch output shaft and said second clutch output shaft, and a general output shaft disposed parallel to said first clutch output shaft and said second clutch output shaft;

• a first gear connected to said first clutch output shaft;
• a second gear connected to said sub shaft and meshed with said first gear, said second gear interlocking said sub shaft and said first clutch output shaft in association with said first gear,
• a first synchronizing device disposed on said general output shaft;
• a third gear and a fourth gear connected to said second clutch output shaft;
• a fifth gear and a sixth gear disposed on said general output shaft, and respectively meshed with said third gear and said fourth gear, and selectively connected to said general output shaft with said first synchronizing device, said fifth gear and said sixth gear interlocking said second clutch output shaft and said general output shaft in association with said third gear and said fourth gear;
• a second synchronizing device disposed on said sub shaft;
• a seventh gear disposed on said sub shaft and meshed with said fifth gear for reverse gearing;
• and
• a eighth gear disposed on said sub shaft and meshed with said fourth gear for the first forward speed gearing,
• said seventh gear and said eighth gear interlocking said sub shaft and said general output shaft by selectively connecting said seventh gear and said eighth gear themselves to said sub shaft through said second synchronizing device so as to complete the first forward speed gearing in addition to completing the reverse gearing.