Patent ID: 7475445

Claim:
A transmission mechanism suitable to be used in a washing machine for creating dual-direction driving comprising: a drive power input end and two drive power output ends, wherein one of said drive power output ends is connected to an agitator shaft to cause said agitator shaft to rotate in a direction, while the other of said drive power output to ends is connected to a hollow inner basket shaft to cause said hollow inner basket to rotate in another direction; a gearbox adapted to transform a drive power input into two drive power outputs, said gearbox including: an upper shaft hole disposed in an upper end wall of said gearbox; said hollow inner-basket shaft extending through said upper shaft hole and being rotatable within said gearbox, a lower end of said hollow inner basket shaft locating in said gearbox; said agitator shaft being concentrically disposed inside said hollow inner basket shaft and being rotatable therein, a lower end of said agitator shaft extending beyond said lower end of said hollow inner basket shaft; a lower shaft hole disposed in a lower end wall of said gearbox; a main drive shaft disposed inside said gearbox and rotatable therein; an upper end of said main drive shaft locating in said gearbox and its lower end extending downwards and outwards through said lower shaft hole; two pairs of gear shafts disposed in gear shaft holes arranged in said upper end wall and said lower end wall of said gearbox, respectively, and two pairs of gear parts provided on said two pairs of gear shafts, respectively, and meshing with each other; wherein a first one of said two pairs of gear parts meshes with an outer gear disposed at said upper end of said main drive shaft and an outer gear disposed at lower end of said agitator shaft, respectively, and a second one of said two pairs of gear parts meshes with an outer gear disposed at said lower end of said hollow inner basket shaft.