Power transmission apparatus with dual clutch

摘要

An object of the present invention is to provide a power transmission apparatus having a structure improving heat radiation, clutch discs of same configuration in two clutch sections enabling common use in them, and a simple structure having a simple power transmission path. According to the present invention there is provided a power transmission apparatus comprising an input member rotated by engine output; first and second clutch sections respectively having a plurality of driving clutch discs and a plurality of driven clutch discs each driving and driven clutch discs being alternately arranged; first and second output shafts rotated by driving force transmitted from the first and second clutch sections; transmission members for transmitting the driving force transmitted from the first and second clutch sections respectively to the first and second output shafts; and selecting means for selectively pressing or separating the driving clutch discs and driven clutch discs respectively of the first and second clutch sections each other; the first and second output shafts extending substantially in parallel with each other radially inside the input member and selectively transmitting the driving force from the input member to the first and second output shafts in accordance of the pressing or separating operation by the selecting means against the driving clutch discs and the driven clutch discs of the first and second clutch sections characterized in that the first and second clutch sections are arranged axially in parallel with the first and second shafts, that the transmission members extend from either side of a group of the first and second clutch sections to the first and second output shafts, and that the selecting means is arranged between the transmission members.