KR19990009429A - Washing wing of washing machine - Google Patents

Abstract

The present invention is to improve the laundry wing structure to improve the structure of the washing blade to prevent the tangling and twisting of the laundry during washing to improve the washing performance and to facilitate the withdrawal of the laundry.

To this end, the present invention by installing at least one upward flow inducing means for inducing the washing water hit during the inverted left and right of the washing blade (1) in the center of the washing wing (1) to the upward flow, the upward flow When the upward stream formed by the induction means meets with the rotary stream formed by the water flow forming ribs 11 on the upper surface of the washing blade, it flows in a direction opposite to the flow direction of the rotary stream, collides with the laundry, and then falls into a steady stream. And washing blades of the washing machine to prevent twisting.

Description

Washing wing of washing machine

The present invention relates to a washing blade of a washing machine, and more particularly, to improve the structure of the washing blade to enable the formation of a laundry stream that can prevent tangling and twisting of laundry during washing.

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 8 is rotatably installed in the outer tub 9 in the main body 12, and the left and right sides of the washing tub 8 are stirred at the lower center of the washing tub 8. The washing blade 1 is installed, and the washing tank 8 and the washing blade 1 are fastened to each other by passing through the dehydration shaft and the washing shaft of the clutch 13 installed at the center of the bottom surface of the outer tub 9.

In addition, the motor pulley 14 and the clutch pulley 15 are respectively provided on the motor 10 and the clutch 13 which are installed at one side of the bottom surface of the outer tub 9 and are driven by a control signal of a microcomputer (not shown). The V-belt 16 is wound between the motor pulley 14 and the clutch pulley 15 so as to transmit power.

In addition, a water supply valve (not shown) for supplying washing water into the outer tub 9 is installed at one upper side of the main body 12 by a control signal of a microcomputer, and the outer tub 9 in the main body 12 is installed. On the lower side, a drain valve 18 for discharging the washing water in the outer tub 9 to the outside of the main body 12 through the drain hose 17 is installed in accordance with the control signal of the microcomputer.

Meanwhile, as shown in FIG. 2, the washing blade 1 installed in a conventional washing machine has a water flow forming rib 11 and a water permeable hole disposed radially on an upper surface of a circular body made of a plastic or the like. The punch 19 is provided with a lifting and lowering movement by the cam during the left and right inversion of the washing blade (1).

At this time, the upper surface of the punch 19 is provided with a projection (19a) for rubbing with the laundry.

Therefore, when the user puts laundry into the washing tank 8 and performs water supply, and then proceeds with the washing, after each unit stroke such as washing, rinsing, draining, and dehydration is sequentially performed 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 into the microcomputer and determining the optimum water level according to the water supply, the washing tank 8 proceeds to wash the laundry by left and right stirring of the washing blade 1 in a stopped state. In the dehydration, the washing tank 8 and the washing wing 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 having a shape as shown in FIGS. 3A and 3B is formed in the washing tank 8, which is caused by the rotation of the washing wing 1. This is due to the action of the forming ribs 11.

At this time, FIG. 3A is a plan view of the water flow, in which an arrow near the inner wall of the washing tank 8 indicates a rising rotational flow, and an arrow following the inner side shows a descending rotational flow.

As described above, when the washing blade 1 is inverted left and right, the washing tank 8 rotates by the action of the water flow forming rib 11 and ascends through the outer wall of the washing tank 8 to the center lower portion of the washing tank 8. 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 19 mounted in the center of the washing blade 1 lifts and rotates the laundry flowing into the center while lifting and rotating by the cam action, thereby preventing the laundry from being tangled and twisted.

However, such a conventional washing machine is tangled and twisted by the punch 19 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. To prevent the, the force of the punch 19 was insufficient to prevent the 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 improve the washing performance by enabling the formation of the laundry flow that can prevent the tangling and twisting of the laundry during washing and withdrawal of the laundry It is an object of the present invention to provide a washing blade of a washing machine to be easily made.

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

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

5 is a side view of FIG. 4

6 is a perspective view of part A of FIG.

7a and 7b is conceptually showing the flow of the washing water flow formed during the operation of the washing wing according to the present invention,

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.

8 is a side view conceptually showing the water flow form of FIGS. 7A and 7B

Explanation of symbols for the main parts of the drawings

1: washing wing 2: support

3: water guide plate 4: stand

5: Indentation groove 6: Water flow hole

7: Cover 8: Laundry

9: look 10: motor

11: Water flow forming rib

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 center of the washing blade, at least one rising water induction means for inducing the washing water collided when the left and right reverse of the washing blades to the rising water is installed, the rising water flow formed by the rising water induction means is lowered It is a washing blade of the washing machine to prevent the tangling and twisting of the laundry by hitting the flow in the opposite direction to the flow direction of the rotating water flow.

Hereinafter, an embodiment of the present invention will be described in detail with reference to FIGS. 4 to 8.

4 is a partial cutaway plan view showing a washing blade according to the present invention, Figure 5 is a side view of Figure 4, Figure 6 is a perspective view of the portion A of Figure 5, the present invention is the washing blade (in the center of the washing blade 1) 1) at least one upward flow guide means for inducing the washing water collided during the inversion of the left and right sides to be the upward flow, so that the upward flow formed by the upward flow guide means is opposite to the flow direction of the rotating flow flow down It is configured to prevent tangling and kinks of the laundry by flowing and abutting in the direction.

At this time, the upward flow guide means is a support (2) which is installed to face each other in the center of the washing blade (1), and the water flow guide plate (3) rotatably installed between the two support (2), The lower side of the water guide plate 3 between the support (2) to limit the range of rotation of the water guide plate 3, and also to the surface of the water guide plate (3) of the wash water rising by the reaction force V-shaped grooves for maintaining a constant collision angle are made of a pedestal 4 formed at the upper end.

On the other hand, the water flow guide plate 3 is installed in the center of the washing blade (1) is rotatably mounted so as to correspond to the change in the water flow direction when changing the rotation direction of the washing blade (1).

In addition, recesses 5 are formed on both sides of the water induction plate 3 to increase frictional force with the wash water that strikes the plate surface.

In addition, a plurality of water flow flow holes 6 through which the water flows formed by the water flow guide plate 3 pass on the rising water flow guide means of the washing blade 1, the cover of the rising water flow guide means formed on the outer surface thereof ( 7) is installed.

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

When the user puts the laundry into the washing tank 8, supplies water, and pushes the washing operation button to proceed with 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 inverted left and right by receiving the power of the motor 10 mounted on the lower portion of the outer tub 9, 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 11 formed on the upper surface of the washing wing 1 form water streams that rise along the inner wall of the washing tank 8 and then descend to the washing tank 8 again.

On the other hand, the water flow formed by the water flow forming ribs 11 is to tangled or twisted laundry, by the rising water flow caused by the water flow guide action of the rising water guide means mounted to the center of the washing blade (1). Tangles and kinks in the laundry are prevented.

That is, the rising water flows in the opposite direction of the rotating water flow descending to the washing tank 8 to attenuate the rotational force of the falling water to prevent tangling and twisting of the laundry, which will be described below in detail.

When the washing blade 1 rotates in the clockwise direction, the water flow forming ribs 11 rise along the inner wall of the washing tank 8 and form a stream of water descending toward the center of the washing tank 8.

At this time, the water flow guide plate (3) rotatably installed between the support (2) installed in the center of the washing wing (1) to rise to the upper center of the washing tank (8) to form a water flow descending from the edge of the washing tank (8) do.

Accordingly, the down stream of the water stream formed by the water flow forming ribs 11 and the upward stream induced by the water flow guide plate 3 meet and descend at the midpoint thereof as shown in FIGS. 7A and 8. Will form, and the laundry will descend along this stream.

At this time, the flow direction of the rotational water flow outside the washing tank 8 generated by the water flow forming ribs 11 and the rotational water flow inside the washing tank 8 guided to the water flow guide plate 3 meet each other. As shown in the plan view in the opposite direction to each other, according to the rotational force components cancel each other to lose power and change to normal flow.

Therefore, the laundry in the washing tank 8 is lowered toward the washing blade 1 in a state of being tangled or not twisted along the flow of the steady flow formed at the point where the water flows meet each other.

Here, the imaginary line shown in FIG. 7A represents an area where laundry is lowered by the normal flow formed by the ascending water flow at the center and the outer ascending water flow.

As described above, the upward stream of the present invention is for forming the stream of water by relative movement with the wash water according to the rotation of the washing blade 1, unlike the conventional upward stream of water formed by the punch 19 rising by the cam action. By going in the opposite direction to the water flow generated by the ribs 11 to reduce the rotational force of the water flow to reduce the tangled or twisted laundry.

Unlike the above, when the washing blade (1) rotates in the counterclockwise direction shows a water flow shape as shown in Figure 7b, in this case the water flow shape as seen from the side the washing blade shown in Figure 8 rotates clockwise It appears in the same form as when

That is, FIG. 7B is a plan view of the water flow shape when the washing blade 1 rotates counterclockwise, and at this time, the water induction plate 3 installed on the support 2 according to the change of direction of the washing blade 1 is washed. By the reaction force of the number, it rotates around the axis of rotation and moves in the opposite direction.

On the other hand, when the washing blade (1) is inverted left and right as described above, the V-shaped pedestal (4) in which the water guide plate 3 is supported by the inclined surface inside the V-shaped groove is installed inside the support (2) Therefore, the angle at which the washing water hit by the water flow guide plate 3 during the rotation of the washing blade 1 rises by the reaction force is kept constant.

In addition, the V-shaped pedestal 4 serves to support the water flow guide plate 3 and at the same time limit the rotation range of the water flow guide plate 3.

As described above, when an upward flow occurs by the water guide plate 3, a plurality of upward flows formed by the water guide plate 3 pass through the upper side of the upward flow guide means of the washing blade 1. The cover for protecting the rising water flow guide means, in which the water flow hole 6 is formed on the outer surface, is provided so that the phenomenon that the laundry is caught on the water flow guide plate 3 or the like is prevented.

As described above, the present invention improves the washing performance by preventing the tangling or twisting of the laundry by improving the structure of the laundry wing (1) to enable the formation of a wash flow that can prevent tangling and twisting of the laundry. You can do it.

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

Claims (5)

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, At least one upward flow guide means for guiding the washing water collided when the left and right reverses of the laundry blades to the upward flow is installed at the center of the washing blade, and the upward flow formed by the upward flow guide means is lowered. Washing wings of the washing machine, characterized in that to prevent the tangling and twisting of the laundry by abutting by flowing in the opposite direction to the flow direction. The method of claim 1, Ascent flow guide means Supports are installed to face each other in the center of the washing blade, A water flow guide plate rotatably installed between the both side supports; A pedestal having a V-shaped groove installed at a lower portion of the water guide plate between the supports to limit the rotation range of the water guide plate and maintaining a constant angle at which the surface of the water guide plate collides with the wash water; Washing wing of the washing machine, characterized in that consisting of. The method of claim 2, The washing blade of the washing machine, characterized in that the water flow guide plate is installed in the center of the washing blade is rotatably mounted so as to correspond to the water flow direction when the rotation direction of the washing blade. The method of claim 2, Washing wings of the washing machine, characterized in that the concave groove is formed to increase the frictional force with the wash water that strikes the plate surface on both sides of the water induction plate. 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 rising water flow formed by the flow guide action.