Driving system for washing machine

A driving system for a washing machine, including a washing shaft connected with an agitator in the center of a washing tub to stir laundry in a washing mode, and an extracting shaft positioned outside of the washing shaft and connected with an extracting tub which rotates at high speeds in an extracting mode, said driving system comprising:

• a power-generating means for generating power to rotate said washing shaft and said extracting shaft;
• a decelerating means installed under said power-generating means to reduce the number of rotations transmitted from said power-generating means;
• and
• a power-switching means for de-energizing said extracting shaft in the washing mode and for energizing said extracting shaft in the extracting mode, wherein said power-switching means includes
• a cam lever rotatable coupled on either side of upper and lower housings of said power generating means and closely connected with a cam at its upper part,
• a first clutch lever pivoting with relation to a hinge by rotation of the cam,
• a second clutch lever connected with said first clutch lever and an outer circumference of the extracting shaft by a serration so as to control the power by being engaged with said first clutch which is closely connected with an upper surface of a motor shaft while moving vertically,
• a gear lever perpendicularly connected to said cam lever thereunder and rotating together with said cam lever,
• a first cam and a second cam loosely engaged with each other so that said first cam rotates together with said gear lever and said second cam moves vertically by a stair-like portion formed in the loose engagement between said first cam and said second cam, and
• coil springs respectively installed on an inner circumference of said second cam and said second clutch lever to be compressed and expanded by rotation of said cam lever when the washing mode is switched to the extracting mode.