KR19990009432A - Washing wing of washing machine - Google Patents

Abstract

The present invention is to improve the washing performance by improving the structure of the laundry wing to form a laundry flow that can prevent the tangling and twisting of the laundry during washing, and to facilitate the withdrawal of the laundry after washing.

To this end, the present invention is formed so that the water flow forming ribs (2) on the upper surface of the washing blade (1) has a constant radius of curvature, washing water only at the time of the forward rotation of the washing blade (1) in the center of the washing blade (1) A rising water flow guide means for inducing the rising water flow is provided, and when the washing blade 1 rotates in the forward direction, a strong rotation formed by the rising water flow formed by the rising water flow guide means and the water flow forming ribs 2. The flows of water flow in opposite directions and collide to form a steady flow to prevent tangling and twisting of the laundry.When rotating in the reverse direction, the frictional force between the water flow forming ribs 2 and the laundry is reduced, which weakens the rotational force of the flow. This is the washing blade of the washing machine to prevent the tangling and twisting of the laundry.

Description

Washing wing of washing machine

The present invention relates to a washing wing of a washing machine, and more particularly, to improve the structure of the washing wing to enable the formation of a wash flow that can prevent tangling and twisting of the laundry during washing so that washing performance can be improved. .

In general, a washing machine is a device for removing various contaminants attached to clothes, bedding, etc. by using the emulsification of the detergent and the friction action of the water flow due to the rotation of the washing blade (Pulsator) and the impact of the washing wing on the laundry. In addition, the sensor detects the amount and type of laundry and automatically sets the washing method, and also washes the water to an appropriate level according to the amount and type of the laundry, and performs washing under the control of the microcomputer.

In the conventional washing machine, as shown in FIG. 1, the washing tub 13 is rotatably installed in the outer tub 15 of the main body 14, and the left and right sides of the washing tub 13 are stirred at the lower center of the washing tub 13. The washing blade 1 is installed, and the washing tank 13 and the washing blade 1 pass through the dehydration shaft and the washing shaft of the clutch 16 installed at the center of the bottom surface of the outer tub 15, respectively.

In addition, the motor pulley 17 and the clutch pulley 18 are respectively provided in the motor 3 and the clutch 16 which are installed at one side of the bottom surface of the outer tub 15 and are driven by a control signal of a microcomputer (not shown). The V-belt 19 is wound between the motor pulley 17 and the clutch pulley 18 so as to transmit power.

In addition, a water supply valve (not shown) for supplying washing water into the outer tub 15 is installed at an upper side of the main body 14 by a control signal of a microcomputer, and the outer tub 15 in the main body 14 is installed. On the lower side, a drain valve 21 for discharging the washing water in the outer tub 15 to the outside of the main body 14 through the drain hose 20 is installed in accordance with the control signal of the microcomputer.

Meanwhile, as shown in FIG. 2, the washing blade 1 installed in the conventional washing machine has a water flow forming rib 2a and a water hole formed radially on an upper surface of a circular body made of an inelastic material made of plastic or the like. The punch 22 is provided with a lifting and lowering movement by the cam when the washing blade 1 is inverted left and right.

At this time, the upper surface of the punch 22 is provided with a projection 22a for rubbing the laundry.

Therefore, when the user puts the laundry into the washing tank 13 and performs water supply, and then proceeds with the washing, after each unit stroke such as washing, rinsing, draining, dehydrating, etc. sequentially by the washing program of the selected course, This will complete the pre-laundering administration.

That is, during washing, after sensing the amount of laundry put in the microcomputer and determining the optimum water level according to the water supply, the washing tank 13 proceeds to wash the laundry by stirring left and right of the washing blade 1 in a stopped state. In the dehydration, the washing tub 13 and the washing blade 1 rotate together at high speed to dehydrate.

On the other hand, when the washing wing 1 is reversed left and right during washing, a washing water stream of a type as shown in FIGS. 3A and 3B is formed in the washing tank 13, which is caused by the rotation of the washing wing 1. This is due to the action of the forming ribs 2a.

3A is a plan view of the water flow, in which an arrow near the inner wall of the washing tank 13 indicates a rising rotational flow, and an arrow following the inner side shows the descending rotational flow.

As described above, when the washing blade 1 is inverted left and right, the washing tank 13 rotates by the action of the water flow forming ribs 2a and ascends through the outer wall of the washing tank 13 to the center lower portion of the washing tank 13. Ascending rotational flow and descending rotational flow are introduced again, and the laundry is tangled or twisted by the upward rotational flow and the downward rotational flow.

At this time, the punch 22 mounted at the center of the washing blade 1 lifts and rotates the laundry flowing into the center while lifting and rotating by the cam action to prevent the laundry from being tangled and twisted.

However, such a conventional washing machine is tangled and twisted by the punch 22 that is raised and lowered by the cam action when the cloth is entangled due to the falling rotational flow generated when the washing blade 1 is inverted left and right. However, the force of the punch 22 was insufficient to prevent tangling and twisting of the laundry in the laundry.

Therefore, the laundry is made in a tangled state of the laundry, not only does not wash effectively, but also bring the damage of the laundry, there was a problem that eventually lowers the washing performance and reliability of the washing machine.

The present invention is to solve the above-mentioned problems, by improving the structure of the washing blade to enable the washing water flow can be formed to prevent the tangling and twisting of the laundry during washing to improve the washing performance and after washing It is an object of the present invention to provide a laundry wing of a washing machine to facilitate the withdrawal of laundry.

1 is a longitudinal sectional view schematically showing a conventional washing machine

Figure 2 is a perspective view of the washing blade of Figure 1

3a and 3b is a plan view and a side view conceptually showing the flow of the washing water flow formed during the operation of the washing blade of Figure 1

4 is a plan view showing a washing wing according to the present invention

FIG. 5 is a cross-sectional view illustrating a line I-I of FIG. 4. FIG.

Figure 6 is a conceptual side view conceptually illustrating the flow of the washing water flow formed during operation of the washing blade according to the present invention

7A and 7B are plan views of FIG. 6,

Figure 7a is a plan view of the water flow when the washing blade rotates in the clockwise direction

7B is a plan view of the water flow when the washing blade rotates counterclockwise.

Explanation of symbols for the main parts of the drawings

1: washing wing 2: rib for water flow formation

3: motor 4: clutch shaft

5: Latch 5a: Tooth

6: Driving shaft 7: guide

8: Water guide fan 8a: sloped surface

9: water flow 10: protective cover

In order to achieve the above object, the present invention is provided with a plurality of ribs for forming a water flow on the upper surface of the disk-shaped washing wings to rise along the inner wall of the washing tank during the inverted left and lower back to the center of the washing wing to form a rotary flow In the water flow forming ribs are formed to have a constant radius of curvature, the center of the washing blade is provided with a rising water flow inducing means for guiding the washing water to the upward flow only at the forward rotation of the washing blade, the washing blade When rotating in the forward direction, the rising water flow formed by the rising water flow inducing means and the strong rotating water flow formed by the water flow forming ribs flow in opposite directions and collide with each other to form a steady flow, thereby preventing tangling and twisting of laundry. When rotating in the reverse direction, the frictional force between the water flow forming ribs and the laundry becomes small, and the rotational force of the water flow is reduced. Chemistry is a laundry washing machine so that the wings of a doemeurosseo prevent the entanglement and tangling of the laundry.

Hereinafter, an embodiment of the present invention will be described in detail with reference to FIGS. 4 to 7B.

Figure 4 is a plan view showing a washing wing according to the present invention, Figure 5 is a cross-sectional view showing the line I-I of Figure 4, Figure 6 is a conceptual view of the flow of the washing water flow formed during operation on the washing wing according to the present invention 7A and 7B are plan views of FIG. 6, the present invention is formed so that the water flow forming ribs 2 have a constant radius of curvature on the upper surface of the disk-shaped washing blade 1, and the washing blade 1 In the center of the), the rising water flow guide means for inducing the washing water to the upward flow by the relative movement with the washing water only when the washing blade (1) in the forward rotation, the washing blade (1) is rotated in the forward direction The rising water flow formed by the rising water flow guide means and the strong rotational water flow formed by the water flow forming ribs 2 flow and collide in opposite directions to form a normal flow to prevent tangling and twisting of laundry. When rotated in the direction becomes small, the frictional force between the ribs (2) forming the water flow and the laundry is configured such that the rotational force of the water current weakens doemeurosseo prevent the twisting and entanglement of the laundry.

At this time, the rising water flow guide means is embedded in the center of the washing blade (1) so as to be coupled to the clutch shaft (4) for transmitting the driving force of the motor (3) to the washing blade (1) inclined in one direction (5a) Is formed, and teeth 6a engaging with teeth 5a of the latch 5 are formed to rotate together with teeth 5a of latch 5 during forward rotation of the motor 3. On the contrary, when the motor 3 rotates in reverse, the teeth 5a of the latch 5 slide over and the clutch shaft 4 rises so that the clutch shaft 4 rotates idly. Guide (7) for guiding this when the drive shaft (6) in accordance with the reverse rotation of the 3), the inclined surface coupled to the upper end of the drive shaft (6) to induce the upward flow during the forward rotation of the washing blade (1) on the outer peripheral surface It consists of the water flow guide fan 8 in which 8a was formed.

In addition, a plurality of water flow holes 9 through which the water flows formed by the water induction fan 8 pass through the rising water induction means of the washing blade 1, the cover for protecting the rising water induction means formed on the outer surface thereof. 10 is installed.

On the other hand, the guide (7) and the rising water flow guide means protective cover 10 which is installed on the drive shaft (6) outside the screw thread (12) formed by forming a step on the outer peripheral surface of the hub (11) of the washing blade (1) Each combined.

The operation of the present invention configured as described above is as follows.

When the user puts the laundry into the washing tank 13, supplies water, and presses the washing operation button to proceed with the washing, the unit strokes such as washing, rinsing, draining, and dehydrating are sequentially completed by the washing program of the selected course. After that, the pre-laundering administration is completed.

When washing is performed as described above, the washing blade 1 is reversed left and right by receiving the power of the motor 3 mounted under the outer tub 15, and thus the relative movement between the washing blade 1 and the washing water. This will occur.

At this time, the washing blade (1) generates a certain type of water flow according to the geometric shape and its characteristics.

That is, as described above, the water flow forming ribs 2 formed on the upper surface of the washing wing 1 form water streams that rise along the inner wall of the washing tank 13 and then descend to the washing tank 13 again.

At this time, the water flow forming ribs 2 of the present invention are bent in a clockwise direction to have a constant radius of curvature, so that a greater frictional force with the wash water when the washing blade (1) rotates clockwise more powerful water flow than conventional Will form.

On the other hand, the strong rotary water flow formed by the water flow forming ribs 2 is to tangled or twisted laundry, the rising water flow caused by the water flow guide action of the rising water flow guide means mounted to the center of the washing blade (1) This prevents tangling and kinks in the laundry.

That is, the rising water flows in the opposite direction of the rotating water flow descending to the washing tank 13 to attenuate the rotational force of the falling water so that the falling water flows to achieve a normal flow, thereby preventing the tangling and twisting of the laundry. The process and action will be described in more detail below.

First, when the washing blade (1) rotates in the clockwise direction, the water flow forming ribs (2) to rise along the inner wall of the washing tank 13 to form a flow of water descending toward the center of the washing tank (13).

At this time, the washing blade (1) in the center of the washing blade (1) is installed in the water flow induction fan (8) which rotates together in the clockwise direction to induce an upward flow.

This is because the inclined surface 8a formed on the outer surface of the water flow fan 8 is formed so as to rebound in the direction in which the washing water collides with the surface when the washing blade 1 rotates clockwise.

Accordingly, the upward flow formed by the water induction fan 8 rises to the upper center of the washing tub 13 and then descends from the edge of the washing tub 13.

Therefore, the down stream of the water stream formed by the water flow forming rib 2 and the rising stream induced by the water induction fan 8 meet at their intermediate points as shown in FIGS. 6 and 7A to form a steady stream together. The laundry will descend along this stream.

That is, the rotational water flow outside the washing tank 13 generated by the water flow forming rib 2 and the rotational water flow inside the washing tank 13 guided by the inclined surface 8a of the water flow inducing fan 8 meet each other. In the flow direction in Fig. 7a in the opposite direction when viewed in plan view as shown in Fig. 7a, thereby losing the torque components of each other and change to normal flow.

Therefore, the laundry in the washing tank 13 is lowered in an untangled or twisted state along the flow of the steady flow formed at the point where the water flows meet each other.

As described above, the upward flow of the present invention is different from the conventional upward flow formed by the punch 22 rising by the cam action, and when the washing blade 1 rotates in the clockwise direction, the water flow forming ribs 2 are produced. By going in the opposite direction to the water flow to damp the rotational components of the water flow to reduce the tangled or twisted laundry.

Unlike the above, Figure 7b is a plan view of the water flow when the washing blade (1) rotates in a counterclockwise direction, in this case washing water and the water flow forming ribs (2) in accordance with the change of the direction of the washing blade (1) The frictional force with and is greatly reduced, thereby forming a weak water flow, which is due to the geometrical characteristics of the water flow forming ribs 2 formed on the upper surface of the washing blade (1).

On the other hand, when the washing blade 1 rotates counterclockwise, the teeth 5a of the latch 5 coupled to the upper end of the clutch 16 and rotating rotate the driving shaft of the water flow guide fan 8 as the rotation direction is changed ( By sliding the teeth (6a) formed in 6) to push the water flow guide fan (8).

Accordingly, when the washing vane 1 rotates counterclockwise, only the washing vane 1 rotates while the water flow induction fan 8 is stopped to form water flow.

That is, during the counterclockwise rotation of the washing blade (1), the water flow guide fan (8) rises under the guidance of the guide (7) to stay out of engagement with the latch (5), the water flow is formed The molten rib 2 also has a significantly reduced frictional force with the wash water due to its geometrical characteristics, thereby forming a weak rotational flow, thereby preventing the laundry from being tangled and twisted as in the case of rotating clockwise.

On the other hand, when the upward flow occurs by the water induction fan 8 as described above, the rising water flow formed by the water flow induction fan 8 is passed to the upper portion of the rising water induction means of the washing blade (1). A plurality of water flow guide means (9) formed on the outer surface of the water flow guide means protective cover 10 is installed to prevent the phenomenon that the laundry is caught in the water flow guide plate.

Therefore, in the present invention, when the washing blade (1) rotates in the forward direction, the radial water flow is formed in the outer portion of the washing tank (13) by the strong water flow generated by the washing blade (1), and then rapidly rises and descends to the center of the washing tank (13). At this time, the rising water generated by the rising water induction means in the lower part of the washing tank 13 collides with the rotating water flow to attenuate the rotational component of the water to achieve a steady flow, thereby preventing tangling and twisting of the laundry.

In addition, at the time of the reverse rotation of the washing blade (1), very weak water flow is formed due to the geometric characteristics of the water flow forming ribs 2, the rotational force of the water flow is also significantly weakened, so that laundry does not get tangled or twisted.

As described above, the present invention by improving the structure of the laundry wing (1) to enable the formation of a wash flow that can prevent the tangling and twisting of the laundry during washing by preventing the laundry is tangled or twisted laundry performance is improved It can be improved.

In addition, as the laundry is prevented from being tangled and twisted, the laundry can be easily withdrawn after washing is completed, thereby providing convenience to the user.

Claims (3)

In the disk-shaped washing blade having a plurality of water flow forming ribs on the upper surface to form a rotary flow flows up along the inner wall of the washing tank during the left and right inversion and then descends back to the center of the washing wing, The water flow forming ribs are formed to have a constant radius of curvature, and the center of the washing blade is provided with a rising water flow guide means for guiding the washing water to the upward flow only when the washing blade is rotated in the forward direction, the washing blade is rotated in the forward direction At the time, the rising water flow formed by the rising water flow inducing means and the strong rotational water flow formed by the water flow forming ribs flow in opposite directions and collide with each other so as to fall into a normal flow, thereby preventing tangling and twisting of laundry. The washing blade of the washing machine, characterized in that the friction between the water flow forming ribs and the laundry during the rotation to reduce the rotational force of the water flow to prevent tangling and twisting of the laundry. The method of claim 1, The upward flow guide means, A latch embedded in the center of the washing blade and having a tooth inclined in one direction so as to be coupled to a clutch shaft for transmitting the power of the washing blade driving motor to the washing blade; A drive shaft which is formed with a tooth meshed with the teeth of the latch and rotates together with the teeth of the latch when the motor rotates forward while the teeth of the latch slide over when the motor rotates reversely, and the clutch shaft rises to idle; A guide installed outside the drive shaft and guiding it when the drive shaft rises due to reverse rotation of the motor; A water induction fan coupled to an upper end of the drive shaft and having an inclined surface formed on the outer circumferential surface to induce an upward flow of the washing blade; Washing wing of the washing machine, characterized in that consisting of. The method according to claim 1 or 2, Washing wings of the washing machine, characterized in that the upper portion of the upward flow guide means, a cover for protecting the rising flow guide means formed on the outer surface of the plurality of water flow holes through which the flow of the flow formed by the flow guide action is provided.