| 摘要 |
The present invention relates to a four-wheel drive type transmission device capable of front-wheel driving, comprising an decelerating unit (3), which decelerates a rotational driving force input through an input axis (13) from a driving source and outputs the rotational driving force through an output axis (15); a driving transfer unit (5), which distributes the rotational driving force output through the output axis (15) to a front wheel axle and/or a rear wheel axle; a transfer operation unit (7), which operates the driving transfer unit (5) in order to transfer the rotational driving force to the front wheel axle and/or the rear wheel axle; a front wheel output unit (9), which delivers the rotational driving force output from the output axis (15) to the front wheel axle through a front wheel output axis (15) when the front wheel output unit is combined with the output unit (15) through the driving transfer unit (5); and a rear wheel output unit (11), which delivers the rotational driving force output from the output axis (15) to the rear wheel axle through a rear wheel output axis (15) when the rear wheel output unit is combined with the output axis (15) through the driving transfer unit (5). Therefore, a driving mode can be changed into a rear wheel driving mode, a front-wheel driving mode, or a four wheel driving mode through the driving transfer unit according to the vehicle driving conditions. Accordingly, the transmission device allows a vehicle to be driven through front-wheel driving, thereby improving driving performance. |
