| US 7,475,445 B2 | ||
| Counter-rotation wash method and transmission machine | ||
| Yongsen Chai, Qingdao (China); Zhancun Jiang, Qingdao (China); Kaiming Wang, Qingdao (China); Zhichun Zhang, Qingdao (China); Peishi Lu, Qingdao (China); Zezhen Hua, Qingdao (China); Sheng Xu, Qingdao (China); and Zongrui Chi, Qingdao (China) | ||
| Assigned to Haier Group Corporation, Qingdao, Shangdong Province (China); and Haier Electric Appliances International Co., Ltd., Qingdao, Shangdong Province (China) | ||
| Appl. No. 10/492,786 PCT Filed Jun. 12, 2002, PCT No. PCT/CN02/00415 § 371(c)(1), (2), (4) Date Sep. 29, 2004, PCT Pub. No. WO03/033803, PCT Pub. Date Apr. 24, 2003. |
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| Claims priority of application No. 01 1 27557 (CN), filed on Oct. 18, 2001; and application No. 01 2 69651 (CN), filed on Oct. 18, 2001. | ||
| Prior Publication US 2005/0039496 A1, Feb. 24, 2005 | ||
| Int. Cl. D06F 37/40 (2006.01) | ||
| U.S. Cl. 8—159 [68/131; 68/133] | 20 Claims |
| 19. A washing method for creating a dual-direction washing comprising:
a) causing an electrical motor to drive a main drive shaft to rotate in a direction during washing;
b) causing an agitator to rotate in a first direction, and simultaneously causing an inner basket to rotate in a second reverse
direction via a transmission mechanism; said transmission mechanism adapted to transform a drive power input into two drive-power
outputs; including, in a gearbox:
rotating a first one of two pairs of gear parts disposed respectively on a first one of two pairs of gear shafts via an outer
gear disposed at an upper end of said main drive shaft, to cause a gear disposed at a lower end of an agitator shaft to rotate
in a direction; and
simultaneously rotating a second one of said two pairs of gear parts disposed respectively on a second one of said two pairs
of gear shafts and meshed with said first pair of gear parts, to cause a gear disposed at a lower end of a hollow inner basket
shaft to rotate in a reverse direction, thereby causing said agitator and said inner basket to rotate in opposite directions;
wherein the gearbox includes:
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;
said 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
said two pairs of gear parts provided on said two pairs of gear shafts, respectively, and meshing with each other;
wherein the first one of said two pairs of gear parts meshes with the outer gear disposed at said upper end of said main drive
shaft and the gear disposed at lower end of said agitator shaft, respectively, and the second one of said two pairs of gear
parts meshes with the gear disposed at said lower end of said hollow inner basket shaft;
c) causing said electrical motor to rotate in a reverse direction, to drive said main drive shaft to rotate in another direction;
d) causing said agitator to rotate in said second reverse direction, and simultaneously causing said inner basket in said
first direction via said transmission mechanism; and
e) repeating, at least some of steps a)-d) to complete a washing or rinsing process.
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