Washing basket of washing machine capable of functioning as hydroextractor

Claim 2

A washing machine having a hydroextracting function comprising: an outer frame; an outer tub resiliently supported in said outer frame by suspension rod means; a plastic washing basket having a hydroextracting function rotatably supported in said outer tub and provided with a bottom and an upwardly extending side wall; a pulsator provided in said washing basket, substantially at a center of the bottom of said washing basket; driving means provided outside of said outer tub for rotating said pulsator during a washing operation and rotating said washing basket during a hydroextracting operation; means for draining the water from a bottom of said outer tub; means for overflowing the water from an upper portion of a side wall of said outer tub; said side wall of the washing basket having formed on an inner peripheral surface thereof a plurality of longitudinally extending protrusions, each of said protrusions having an arcuate cross-section projecting inwardly of said washing basket, and a plurality of longitudinally extending grooves, each of said grooves being formed between said longitudinally extending projections so that said protrusions and the grooves are alternatively disposed over the entire circumference of the inner peripheral surface of the side wall of said washing basket, wherein hydroextracting apertures are formed at least in bottoms of said grooves, the width of said protrusions being within a range of 20 mm to 50 mm, and the depth of said grooves being within a range of 5 mm to 10 mm, and said washing basket further being provided with baffle plates at the bottom of said washing basket.

Claim 3

A washing machine having a hydroextracting function comprising: an outer frame; an outer tub resiliently supported in said outer frame by suspension rod means; a washing basket having a hydroextracting function rotatably supported in said outer tub and provided with a bottom and an upwardly extending side wall; a pulsator provided in said washing basket, substantially at a center of the bottom of said washing basket; driving means provided outside of said outer tub for rotating said pulsator during a washing operation and rotating said washing basket during a hydroextracting operation; means for draining the water from a bottom of said outer tub; means for overflowing the water from an upper portion of a side wall of said outer tub; said side wall of the washing basket being provided on an inner peripheral surface thereof with a plurality of longitudinally extending protrusions, each of said protrusions having an arcuate cross-section projecting inwardly of said washing basket, and a plurality of longitudinally extending grooves, each of said grooves being formed between said longitudinally extending projections so that said protrusions and the grooves are alternatively disposed over the entire circumference of the inner peripheral surface of the side wall of said washing basket, wherein hydroextracting apertures are formed at least in bottoms of said grooves, the width of said protrusions being within a range of 20 mm to 50 mm, and the depth of said grooves being within a range of 5 mm to 10 mm, and said washing basket further being provided with baffle plates at the bottom of said washing basket, wherein the inner peripheral surface of said side wall of the washing basket is partially smoothed to form a flattened area occupying the same circumferential plane as the bottom of said grooves, a lint filter is hinged to said flattened area, and the size of said flattened area is large enough to prevent said lint filter from contacting with said projections when the lint filter swings laterally.

Claim 4

A washing machine having a hydroextracting function comprising: an outer frame; an outer tub resiliently supported in said outer frame by suspension rod means; a washing basket having a hydroextracting function rotatably supported in said outer tub and provided with a bottom and an upwardly extending side wall; a pulsator provided in said washing basket, substantially at a center of the bottom of said washing basket; driving means provided outside of said outer tub for rotating said pulsator during a washing operation and rotating said washing basket during a hydroextracting operation; means for draining the water from a bottom of said outer tub; means for overflowing the water from an upper portion of a side wall of said outer tub; said side wall of the washing basket being provided on an inner peripheral surface thereof with a plurality of longitudinally extending protrusions, each of said protrusions having an arcuate cross-section projecting inwardly of said washing basket, and a plurality of longitudinally extending grooves, each of said grooves being formed between said longitudinally extending projections so that said protrusions and the grooves are alternatively disposed over the entire circumference of the inner peripheral surface of the side wall of said washing basket, wherein hydroextracting apertures are formed at least in bottoms of said grooves, the width of said protrusions being within a range of 20 mm to 50 mm, and the depth of said grooves being within a range of 5 mm to 10 mm, and said washing basket further being provided with baffle plates at the bottom of said washing basket, wherein the inner peripheral surface of said side wall of the washing basket is partially smoothed to form a flattened area occupying the same circumferential plane as the bottom of said grooves, a lint filter is hinged to said flattened area, and the size of said flattened area is large enough to prevent said lint filter from contacting with said projections when the lint filter swings laterally.