Transfer device associated with power transmission

Claim 1

In a transfer device associated with a power transmission unit for an automotive vehicle, comprising: an input shaft for connection to an output shaft of said transmission unit; a first output shaft rotatably coupled at the inner end thereof with said input shaft; a countershaft arranged in parallel with said input and first output shafts and being integrally provided with low and high speed counter-gears; a second output shaft arranged in parallel with said countershaft and being integrally provided with an output gear meshing with said high speed counter-gear; a low speed drive gear rotatable on said input shaft and being in mesh with said low speed counter-gear; and a high speed drive gear rotatable on said first output shaft and being in mesh with said high speed counter-gear, said high speed drive gear having the same number of teeth as those of said output gear; the improvement comprising: first and second selector gear units arranged adjacent to each other on a common axis between said low and high speed drive gears, said first selector unit being mounted on said input shaft for selectively connecting said input shaft to said low speed drive gear or to said first output shaft; and said second selector gear unit being mounted on the inner end of said first output shaft for connecting said high speed drive gear to said first output shaft to provide four wheel drive and for disconnecting said high speed drive gear from said first output shaft to provide two wheel drive.