JPH0681488U - Cloth kinking prevention device for pulsator for washing machine - Google Patents

Abstract

(57) [Abstract] [Purpose] It is an object of the present invention to provide a cloth kinking prevention device for a pulsator for a washing machine, which can prevent a laundry, which has a volume larger than its weight, from being twisted when being washed. [Structure] A hemispherical cap 9 formed in a central portion of a pulsator 8 and a plurality of downwardly inclined flat surface portions 11 formed on a curved surface of the hemispherical cap 9. As a result, the laundry having a volume larger than the weight or the laundry having a long length is smoothly dispersed from the central portion of the pulsator 8 to the outer peripheral portion side at the time of stirring, so that the laundry is entangled. It is possible to improve the washing effect, and it is also easy to loosen the laundry after washing.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a pulsator (stirring blade) of a washing machine, and more particularly to a cloth kinking prevention device for a pulsator of a washing machine, which is designed to prevent kinking and entanglement of laundry.

[Prior art]

 In a conventional washing machine, a pulsator is installed at the bottom of the dehydration tub and washing is performed by generating an agitated water flow by the rotation of the pulsator.

In a washing machine of this type, as shown in FIG. 3, when a certain amount of water is supplied to the dehydration tub 1, the motor 3 operates and the motor pulley 4, the belt 5, the clutch pulley 6 and the clutch 7 are operated. The pulsator 8 is sequentially rotated, and the laundry is washed while the laundry and the water are stirred.

In this case, the optimum number of revolutions of the pulsator 8 varies depending on the laundry, but is not more than 200 revolutions / minute, and the laundry is biased toward the center of the pulsator 8 during washing due to the agitated water flow. The phenomenon of twisting and entanglement occurs.

Therefore, as shown in FIG. 4, a spherical hemispherical cap 9 is installed in the central portion of the upper surface of the pulsator 8, and laundry that is biased toward the central portion of the pulsator 8 slips out from the hemispherical cap 9 and pulsator. A pulsator for a washing machine has been proposed in which the laundry is entangled and twisted by being dispersed in the outer peripheral portion 10 of the washing machine 8.

However, in the pulsator 8 as described above, a laundry having a large volume such as a curtain, and a laundry having a long length such as trousers have a larger volume than the weight and are easily dispersed. However, since it is dispersed in the outer peripheral portion 10 while being entangled with the base surface 12 of the pulsator 8, it is difficult to prevent the entanglement phenomenon and the washing effect is lowered.

[0006]

[Problems to be solved by the device]

 In order to solve the above problems, it is an object of the present invention to provide a cloth kinking prevention device for a pulsator for a washing machine, which can prevent the laundry, which has a larger volume than the weight, from tangling when being washed. And

[0007]

[Means for Solving the Problems]

 In order to achieve the above object, the present invention provides a pulsator in which a raised hemispherical cap is installed at the center of the upper surface of the pulsator, and a plurality of inclined flat surfaces are formed on the curved surface of the hemispherical cap.

[0008]

【Example】

 FIG. 3 shows a pulsator for a washing machine according to the present invention. The pulsator 8 is provided with a hemispherical cap 9 having a spherical shape at the center of the upper surface. The hemispherical cap 9 is detachably attached to the pulsator 8 with a screw 14 or the like.

As shown in FIG. 4, the hemispherical cap 9 includes a plurality of flat portions 11 formed on the curved surface portion 9c between the central portion 9a and the side surface portion 9b. The plane portion 11 is formed so as to be inclined downward from the central portion 9a toward the side surface portion 9b, that is, toward the outer peripheral portion 10 of the pulsator 8.

The operation relating to the above configuration will be described. When the pulsator 8 is turned around at a speed of about 200 rpm or less, such as right rotation-stop-left rotation, the laundry is biased toward the center of the pulsator 8. At this time, the flat portion 11 formed on the hemispherical cap 9 causes a small water flow a as indicated by a dotted arrow in FIG. 3 to cause laundry that is biased toward the central portion of the pulsator 8 to be immediately on the base surface 12 of the pulsator 8. Without slipping, it slowly slides along the hemispherical cap 9 and reaches the base surface 12 of the pulsator 8.

Then, the laundry is dispersed on the outer peripheral portion 10 by the large water flow b generated by the rotation of the pulsator 8, as indicated by the solid arrow in FIG. Therefore, it is possible to prevent the laundry, which has a larger volume than the weight, from being easily dispersed and entangled with each other.

As described above, according to the present invention, a laundry having a volume larger than a weight or a laundry having a long length can be smoothly dispersed from the central portion of the pulsator to the outer peripheral portion at the time of stirring. , The laundry is not tangled, the washing effect can be improved, and it is easy to loosen the laundry after it is finished.

[Brief description of drawings]

FIG. 1 is a vertical sectional view of a pulsator for a washing machine according to the present invention.

FIG. 2 is a plan view of a hemispherical cap of a pulsator for a washing machine according to the present invention.

FIG. 3 is a configuration diagram of a conventional washing machine.

FIG. 4 is a vertical cross-sectional view of a pulsator of a conventional washing machine.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Dehydration tank 8 ... Pulsator 9 ... Hemispherical cap 9a ... Center part 9b ... Side part 9c ... Curved part 10 ... Peripheral part 11 ... Plane part 12 ... Base surface

Claims (2)

[Scope of utility model registration request] 1. A cloth kinking preventive device for a pulsator for a washing machine, comprising a hemispherical cap in a central portion of a pulsator, and a plurality of flat portions formed on a curved surface portion of the hemispherical cap. 2. The cloth kinking prevention device for a pulsator for a washing machine according to claim 1, wherein the hemispherical cap is detachably installed on the pulsator.