Gear-type transmission apparatus

A gear-type transmission apparatus comprising:

• an output shaft;
• a first counter shaft and a second counter shaft, both of which are arranged parallel to the output shaft;
• a dual clutch mechanism having a first clutch and a second clutch for transmitting a rotation of a driving shaft driven by a power source to the first and the second counter shafts;
• a first gear change mechanism provided between the first counter shaft and the output shaft;
• a second gear change mechanism provided between the second counter shaft and the output shaft;
• a reverse gear set having a reverse shift stage driving gear provided at one of the first and the second counter shafts, a reverse shift stage intermediate gear provided at the other one of the first and the second counter shafts and operably engaged with the reverse shift stage driving gear, and a reverse shift stage driven gear provided at the output shaft and operably engaged with the reverse shift stage intermediate gear;
• and
• a switching clutch having a reverse shift stage engaging member for establishing/interrupting a torque transmission from the driving shaft to the output shaft via the reverse shift set,
• wherein the reverse shift stage intermediate gear includes a first reverse shift stage intermediate gear and a second reverse shift stage intermediate gear, both of which are rotatably provided at one of the first and the second counter shafts, the reverse shift stage driving gear is engaged with the first reverse shift stage intermediate gear, and the reverse shift stage driven gear is engaged with the second reverse shift stage intermediate gear.