Textiles: fluid treating apparatus – Machines – Supersonic vibrator
Patent
1995-11-08
1997-06-17
Stinson, Frankie L.
Textiles: fluid treating apparatus
Machines
Supersonic vibrator
68133, 134196, 134184, 366267, D06F 1304
Patent
active
056387040
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
The present invention relates to a washing machine and move particularly to a washing machine having a punch-washing function to reduce damage to the washing article caused by mutual rubbing between the washing article and the pulsator of the washer during the washing cycle, and to prevent the washing articles from being entangled with each other, by using up-and-down water flow or non-symmetrical heart-shaped water flow which is generated by the rotation of the pulsator so as to improve the washing effect.
Up to now, many attempts have been made to change the shapes and structures of the pulsator of the washing machines in various forms, for example, bar type, disc type and agitator type, for the purpose of improving the washing effect or preventing the washing articles from being entangled with each other.
FIG. 1 illustrates in detail a conventional disc type pulsator 10, which comprises a fixing part 11 formed at the center of the lower end portion thereof, a protrusion 12 upwardly projected from the center of the upper end with a predetermined height, and smoothly curved blades 13 extending from the central portion to the outer periphery.
This type of pulsator 10, as shown in FIG. 2, is mounted in the inside of a wash tub 20 so as to be rotated by a driving motor 30. When the power is on, it rotates back and forth, and further, blades 13 thereof create the water flow indicated by the arrow in FIG. 2. In addition, the washing articles are being laundered by following the aforementioned water flow in the wash tub 20.
However, in a washing machine provided with this pulsator 10, the washing articles are gathered to the central portion of the pulsator 10 and located only at the bottom of the wash tub 20 due to water flow towards the central portion of the pulsator while the pulsator continues to rotate. Therefore, there is a problem that the washing articles are rubbed with the blades 13 of the pulsator 10 and damaged or even torn by it. In addition, the washing articles become entangled with each other according to the directional change of the rotation of the pulsator, and thus such pulsator has a problem in that it is impossible to expect a high washing effect due to the entanglement of the washing articles, and it is necessary to disentangle the washing articles after dehydrating.
SUMMARY OP THE INVENTION
It is an object of the present invention to provide a new type pulsator having an elevating member adapted to push up the washing articles by up-and-down motion during the washing cycle, wherein the elevating member is formed at the central portion of the pulsator and repeatedly moves upwards and downwards along a spiral groove engraved on the outer surface of a rotating member.
It is another object of the present invention to provide a pulsator in which spring means is provided in the elevating member of the pulsator so as to generate up-and-down water flow smoothly in the wash tub.
It is a further object of the present invention to provide a pulsator which is provided with an elevating member oscillating vertically by the rotation of a rotating shaft and a head swingably fixed to the upper end of said elevating member so that a washing operation is carried out without entanglement of the washing articles.
It is a further object of the prevent invention to facilitate the creation of non-symmetrical water flow in the wash tub so as to improve the washing power of the washer.
It is a further object of the present invention to increase the frictional force of the elevating member against the water flow so as to facilitate up-and-down motion of the elevating member.
According to the present invention, it is possible to prevent the washing articles from being damaged since the washing articles are being moved upwards and downwards by the pulsator having an elevating member. Also, in the washing machine provided with the pulsator according to the present invention, the washing operation is carried out with a drastically improved effect.
Further scope of applicability of the
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Chung Hae Yoong
Kim Hyung Sup
Kim Jung Ho
Lee Byeong Hoon
Roh Young Hoon
Goldstar Co. Ltd.
Stinson Frankie L.
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