KR20040034235A - Washer - Google Patents

Abstract

PURPOSE: A washing machine is provided to activate flow of washing water, and to prevent entanglement or damage of the laundry by forming water stream variously with eccentrically installing a hub and a washing blade to a washing shaft. CONSTITUTION: A washing machine includes an outer tub(110) installed in a washing machine body; a washing tub(120) rotated and installed in the outer tub; a washing shaft(140) penetrating the outer tub and the lower part of the washing tub concentrically and rotating by a driving motor; and a pulsator(130) rotated with the washing shaft to form water stream and combined with the upper part of the washing shaft in the lower part of the washing tub. The pulsator includes a disk type washing board combined with the upper part of the washing shaft, a hub(132) protruded on the washing board and eccentrically formed to the washing shaft, and plural washing blades(133) protruded radially from the center of the hub to form washing stream.

Description

Washing Machine {Washer}

The present invention relates to a washing machine, and in particular, the pulsator is installed eccentrically in the washing tank and configured to generate the washing water flow to the side outside and up and down of the washing tank during washing to activate the washing water flow and improve the washing performance and the laundry It relates to a washing machine that can suppress the kink of the.

As is well known, a washing machine is a device that exfoliates contaminants by applying energy such as impact to laundry, and may be divided into a pulsator washing machine, a drum washing machine, and an agitator washing machine according to a method of applying energy to laundry. In the drum washing machine, the laundry is dropped by the rotation of the drum and the laundry is shocked to wash the laundry. In addition, in the pulsator washing machine and the agitator washing machine, the laundry is impacted by the rotation of a pulsator or agitator coupled to a washing shaft installed vertically in the washing tank, and the action of the detergent is added thereto. That is, the above washing machine is a method of washing laundry by giving a shock to the laundry in a mechanical manner.

Referring to Figure 1, a conventional pulsator washing machine will be described.

An outer tub 3 for storing wash water is installed in the washing machine body 1, a washing tub 5 is installed in the outer tub 3, and a pulsator 7 is installed in the washing tub 5. Is installed concentrically. And the motor 9 which rotates the washing tub 5 and the pulsator 7 is provided in the bottom face of the outer tub 3.

In detail, the washing tank 5 is coupled to the dehydration shaft 15, the washing shaft 13 that can be selectively combined with the dehydration shaft 15 is installed in the dehydration shaft 15, the washing shaft At one end of 13, the pulsator 7 is rotatably provided.

The rotational force of the motor 9 is selectively transmitted to the washing tank 5 and the pulsator 7 by the clutch assembly 11. In addition, the washing shaft 13 and the dehydration shaft 15 is usually serration coupled, selectively coupled by the solenoid 11a.

Referring to Figure 1, the operation of the conventional pulsator washing machine described above is as follows.

First, the laundry administration will be described. When the laundry is put in the washing tank 5 and the washing machine is operated, the washing water is supplied to the washing tank 5. When the water supply is complete, the pulsator 7 washes the laundry while the pulsator 7 rotates forward and reverse while the laundry is immersed in the wash water. That is, the rotational force of the motor 9 is transmitted to the pulsator 7 through the washing shaft 13 and washed by the water flow generated by the stirring of the pulsator 7 and friction of the laundry with the pulsator 7. This is done.

Next, the dehydration administration will be described. In the dehydration stroke, the washing shaft 13 and the dehydration shaft 15 are integrally rotated by the operation of the solenoid 11a. That is, the washing tank 5 and the pulsator 7 rotate together at high speed to dewater.

However, in the conventional washing machines, the pulsator is installed concentrically with the central axis of the washing tank while the laundry is immersed in the wash water, thereby rubbing the laundry while rotating or performing washing by water flow, thereby causing the laundry to be twisted or damaged. It was difficult to avoid.

In addition, the conventional washing machine has a limitation in the flow of the laundry because the washing machine is washed only depending on the washing water generated in the left and right directions due to the stirring rotation of the pulsator when washing in the washing mode, and thus there is a limit in improving the washing performance. there was.

Accordingly, the present invention has been made in order to solve the above problems, it is to enable the washing water flow in the various directions in the left and right and up and down directions when washing to activate the wash water flow, to suppress the twisting and damage of the laundry The purpose is to provide a washing machine.

Figure 1 is a sectional view of the main part showing a conventional pulsator washing machine configuration

2 is a sectional view schematically showing main parts of an embodiment of a washing machine according to the present invention;

3 is a plan view of the washing tank and the washing blade portion of the washing machine of FIG.

4 and 5 are each a cross-sectional view showing main embodiments of the washing blade of the washing machine according to the present invention, respectively.

Explanation of symbols for main parts of the drawings

110: outer tank 120: washing tank

130, 230, 330: pulsator 131, 231, 331: washing plate

132, 232, 332: hub 133: washing wing

134: pumping wing 135: protrusion

140: washing shaft 180: pumping flow guide

In order to achieve the above object, the present invention, the outer tub is fixedly installed in the washing machine body, the washing tub rotatably installed in the outer tub, the concentric with the central axis of the washing tub is installed through the outer tub and the washing tank bottom surface A washing shaft rotated by a drive motor, a washing plate coupled to the upper end of the washing shaft in a lower portion of the washing tank, and a hub formed on the upper surface of the washing plate so as to be eccentric with the center of the washing shaft to generate a washing water flow; It provides a washing machine including a washing wing.

Hereinafter, preferred embodiments of the washing machine according to the present invention will be described in detail with reference to the accompanying drawings.

2 and 3 schematically show the configuration of the washing machine according to the present invention, the outer tub 110 is fixed to the inside of the main body (not shown) constituting the case of the washing machine, the inside of the outer tub 110 The washing tub 120 is rotatably installed about a vertical central axis.

The dehydration shaft 150 is fixed to the lower surface of the washing tank 120 concentrically with the central axis of the washing tank 120, the washing shaft 140 is concentric with the inner side of the dehydration shaft 150 is the washing tank ( It is installed to penetrate the lower surface of 120.

The washing shaft 140 is connected to the driving motor 170 coupled to the lower portion of the outer tub 110 to rotate, the dehydration shaft 150 is the washing shaft 140 by the operation of the clutch assembly 160. It is integrally coupled with the drive motor 170 to selectively receive the power.

On the other hand, the upper end of the washing shaft 140, the pulsator 130 is coupled to rotate with the washing shaft 140.

Here, the pulsator 130 is a disk-shaped washing plate 131 coupled to the upper portion of the washing shaft 140, and the laundry shaft 140 on the upper surface of the washing plate 131 to be eccentrically protruded The plurality of washing blades 133 and the washing plate 131 which are formed to protrude radially from the center of the hub 132 on the upper surface of the washing plate 131 and the washing plate 131 to form a water flow; A plurality of pumping wings 134 formed to protrude radially from the center of the washing shaft on the lower surface of the) is configured to be integrally coupled.

At this time, the washing plate 131 is preferably formed so that the center thereof coincides with the center of the washing shaft 140, which means that the laundry is sandwiched between the washing plate 131 and the lower surface of the washing tank 120. This is to prevent.

In addition, a plurality of protrusions 135 are formed on the outer circumferential surface of the hub 132 so that washing water flow can be generated by the protrusion 135 of the hub 132 when the pulsator 130 rotates.

In addition, the washing tank 120 inside the washing tank 120 to guide the washing water generated at the lower portion of the washing plate 131 by the pumping blade 134 when the pulsator 130 is swiveled to the upper side of the washing tank 120. A pumping flow path guide 180 extending upward along the inner wall at the lower end is configured.

The washing machine configured as described above operates as follows.

When the user puts the laundry in the washing tank 120 and starts the washing mode operation, the clutch assembly 160 allows the coupling between the washing shaft 140 and the dehydration shaft 150 to be released so that the driving motor 170 The power is not directly transmitted to the dehydration shaft 150, and in this state, the drive motor 170 performs washing by rotating the washing shaft 140 in a forward and reverse direction at a predetermined time interval.

At this time, the hub 132 and the washing blade 133 formed on the upper surface of the pulsator 130, since its central axis is a predetermined amount eccentric from the central axis of the washing tub 120, the washing shaft 140 of the By rotation, the hub 132 and the washing blade 133 pivots around the washing shaft 140 to generate a washing stream having a force to push outward.

As such, when the hub 132 and the washing blade 133 rotate to generate washing water flow, the washing water under the washing tank 120 is pumped by the pumping blade 134 of the pulsator 130. Through the washing tank 120 to rise upward along the inner wall surface to generate a washing flow that falls to the bottom of the washing tank 120 from the top of the pumping guide 180, the washing effect by tapping the laundry by the wash flow You can get it.

On the other hand, Figures 4 and 5 show other embodiments of the pulsator of the washing machine according to the invention, Figure 4 is a hub 232 central axis of the pulsator 230 into the washing tank 120 (see Figure 2) The upper surface of the washing plate 231 is configured to be inclined at a predetermined angle θ toward the center of the washing shaft 140 so that the pulsator 230 has a center axis of the hub 232 and the washing shaft 140. The axes will intersect from above.

5, the upper surface of the washing plate 331 is inclined at a predetermined angle θ to the opposite side of the center of the washing shaft 140 such that the central axis of the pulsator 330 faces out of the washing tank 120 (see FIG. 2). In this configuration, the pulsator 330 has a central axis of the hub 332 and the central axis of the laundry shaft 140 intersecting the lower side.

The hubs 232 and 332 and the washing blades 233 and 333 of the pulsator 230 and 330 as shown in FIGS. 4 and 5 are eccentrically coupled from the washing shaft 140. In addition, since it is formed to be inclined inward or outward by a predetermined angle (θ), the inclined washing plate as well as the force pushed outward by the pivoting motion of the hubs 232 and 332 and the washing blades 233 and 333 ( 231) (331) generates a force acting in the vertical direction, thus providing a more advantageous advantage in washing performance and twist suppression.

As described above, according to the present invention, since the pulsator is eccentrically coupled to the washing shaft to form a washing flow that exerts force in the outward and / or vertical direction while pivoting about the washing shaft, the washing water flow can be further activated. It is possible to obtain the effect of improving the performance and suppressing the twisting and damage of the laundry.

In addition, since the water stored in the lower part of the outer tank can be pumped from the bottom of the washing tank to the top thereof and then the washing can be performed by dropping the water, there is also an effect of obtaining improved washing performance with less washing water.

Claims (6)

An outer tub fixedly installed in the washing machine main body, a washing tub rotatably installed in the outer tub, a washing shaft installed through the outer tub and the lower surface of the washing tub concentrically with the central axis of the washing tub and rotating by a driving motor, and the washing tub In the washing machine comprising a pulsator coupled to the upper end of the washing shaft in the lower portion of the inner and rotating with the washing shaft to generate a flow of washing water, The pulsator is a disk-shaped laundry plate coupled to the upper end of the laundry shaft, the hub formed on the upper surface of the laundry plate to be eccentrically protruded, and formed to protrude radially from the center of the hub to wash water flow Washing machine comprising a plurality of washing wings to produce. The washing machine according to claim 1, wherein a plurality of pumping wings protrude radially from a center of the washing shaft on a lower surface of the washing plate. According to claim 2, characterized in that configured to further comprise a pumping oil extending upward along the inner wall surface at the lower end of the washing tank to pump the washing water flow formed at the time of rotation of the pulsator upward along the inner wall surface of the washing tank. washer. The washing machine according to any one of claims 1 to 3, wherein the center of the laundry plate is coincident with the center of the laundry shaft. The washing machine according to any one of claims 1 to 3, wherein the hub is provided with a plurality of protrusions. The washing machine according to any one of claims 1 to 3, wherein the upper surface of the washing plate is formed to be inclined in one direction.