#$%^&*AU2014100981A420140925.pdf#####Title: Synchronously-driven Shifting Device Abstract The present invention discloses a synchronously-driven shifting device, comprising a driving sheet, a rotating shaft and three load sheets. A first load sheet is coaxial to the driving sheet and forms an angle of 600 with the driving sheet. A second load sheet and a third load sheet are disposed at the other end of the rotating shaft. The first load sheet is 3cm in length, the second load sheet is 6cm in length, and the third load sheet is 8cm in length. 4 3
