KR20050028295A - Drum washer - Google Patents

Abstract

A drum-type washing machine is provided to effectively supply water to the laundry in a drum, to quickly obtain a washing effect, and to shorten the washing time. A drum-type washing machine comprises a water tub(9); a drum(21) installed inside the water tub; a driving device rotating the drum; a positioning unit positioning the drum in a rotating direction; and a water supply device(18) supplying water. A water supply outlet(20) of the water supply device is formed to the water tub. A water supply receiver port(24) is formed to the drum. The drum is positioned at a rotation position where the water supply outlet and the water supply receiver port meet and water supply is executed.

Description

Drum Washing Machine {DRUM WASHER}

The present invention relates to a drum type washing machine with an improved water supply structure.

Background Art [0002] Conventionally, in the drum type washing machine, a front open type that generally has a door in front and laundry is introduced from the front is generally provided. In the drum type washing machine of the above type, the water supply is divided into the inside of the drum and the inside of the water tank containing the drum from the upper part of the washing machine along the rear surface of the door. For this reason, not all of the feed water is put into the drum, but a large amount is put into the inside of the tank (between the drum and the tank), and is put into the drum from the drum's dehydration or ventilation connection hole.

On the other hand, as disclosed in, for example, Japanese Unexamined Patent Application Publication No. 8-266777, a top open type drum type washing machine having a door (cover) on the upper surface and laundry is allowed to enter and exit from the upper surface is also known. Is being provided. In the drum type washing machine of the above type, water is supplied into the inside of the water tank (between the drum and the water tank) from the rear part in the washing machine along the rear part of the main body of the drum. For this reason, even in this case, only part of the water supply enters the inside of the drum from the connection hole of the drum, and most of the rest is accumulated in the bottom portion between the drum and the water tank, and from the bottom through the connection hole of the drum It is made to go inside.

However, as described above, most of the feed water enters between the drum and the water tank, and the feed water enters the drum through the connecting hole of the drum, causing the laundry contained in the drum to float on the surface of the water and soaking less water. Because of this, it is difficult to obtain the washing effect quickly, and as a result, the washing time is long.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and an object thereof is to provide a drum type washing machine which can effectively supply water to laundry in a drum, obtain a washing effect quickly, and shorten the washing time.

In order to achieve the above object, the drum type washing machine of the present invention includes a water tank, a drum installed inside the water tank, a driving device for rotating the drum, positioning means for positioning the drum in a rotational direction, and water supply. A drum type washing machine having a water supply device, wherein a water supply outlet of the water supply device is formed in the water tank, and a water supply receiver is formed in the drum, and the rotation position where the water supply outlet meets the water supply outlet of the water supply device. It characterized in that the drum to position the water supply.

According to the above means, when water is supplied by the water supply device, water can be directly supplied into the drum through the water supply port of the drum from the water supply outlet of the water supply device. Therefore, the water can be effectively supplied, such as suppressing the injuries of the laundry in the drum and soaking the water efficiently, so that the washing effect can be quickly obtained and the washing time can be shortened.

EMBODIMENT OF THE INVENTION Hereinafter, 1st Example (1st Embodiment) of this invention is described with reference to FIGS.

First, Figure 2 shows the appearance of the entire drum-type washing machine, the washing machine is a support plate (1), the outer box (2) attached to it and the top cover (3) attached to the outer box (2) The outer periphery 4 is comprised. To the top cover 3, the laundry entrance 5 is formed almost throughout, and the lid 6 which closes this is rotatably attached so that it can be opened and closed by two steps, for example. In addition, an induction case 7 for injecting a treatment agent such as a detergent, a finishing softener, and a bleaching agent is located at the left side position of the laundry entrance 5 (cover 6) of the top cover 3, and a cover thereof. (8) is installed.

Inside the outer box 2, the water tank 9 shown in FIG. 3 is elastically supported from the support plate 1 by a plurality of sets of suspensions 10, and the water tank 9 is provided at the upper portion. The laundry entrance 11 is formed, and the cover 12 which closes the laundry entrance 11 is rotatably attached so that opening and closing is possible. In addition, a motor 13 and a drum lock device 14 shown in FIG. 4 are attached to the left end surface of the water tank 9, and all of the water tanks 9 are provided. Below (in FIG. 4, right side), the drainage apparatus 16 mainly having the drain valve 15 is provided.

On the other hand, above the rear part of the water tank 9, the water supply apparatus 18 mainly having a water supply valve 17 is provided. The water supply valve 17 of the water supply device 18 connects an outlet part to the inlet case 7, and a bellows-shaped feed water hose 19 is provided at the outlet of the inlet case 7. You are connected. Therefore, in this case, the water supply device 18 is composed of a water supply valve 17-an injection case 7-a water supply hose 19 in order, and in the meantime, the feed case 7 is passed through the input case 7. The treatment set in the above) is also made to flow out. In addition, FIG. 2 shows an inlet portion (a water supply inlet of the water supply device 18) 17a as an inlet portion of the water supply valve 17 exposed from the rear portion of the top cover 3.

1 illustrates a water supply outlet 20 of the water supply device 18. This water supply outlet 20 is formed in the rear side close to the laundry entrance 11 of the said water tank 9, and connects the front-end | tip part of the said feed water pump 19 to the said water supply outlet 20. As shown in FIG. .

1 shows the drum 21 installed in the water tank 9. The drum 21 has a horizontal cylindrical shape, and both left and right axial ends thereof are rotatably supported by bearings not shown in the left and right sides of the water tank 9.

The drum 21 forms a laundry entrance 22 in a part of the body portion (the upper part in FIG. 1), and covers the lid 23 for closing the laundry entrance 22 with a rear cover main plate 23a and the front side. It is rotatably attached so that opening and closing is possible with the cover auxiliary plate 23b of this. In addition, although not shown in the body portion of the drum 21, a plurality of connection holes for dehydration and ventilation are formed throughout. And the water supply receiving port 24 is formed in the rear part in FIG. 1 near the laundry entrance 22 (cover 23) of the drum 21. As shown in FIG. The position of the water inlet 24 is specifically, when the laundry inlet 22 of the drum 21 meets the laundry inlet 11 of the water tank 9, the water outlet of the water inlet 18. 20) and the position where the water outlet 20 is located in detail below.

In this case, the water inlet 24 is formed by attaching the porous plate 26 to the hole 25 formed in the drum 21, that is, the water inlet 24 is shown in FIG. Together, they form a porous shape and have many small holes 27. In addition, the porous plate 26 is recessed in a dish shape, and thus the water receiving port 24 is also recessed slightly toward the inside of the drum 21. In addition, with respect to the water receiving port 24, the porous plate 26 has a lower side in the state when the laundry entrance 22 of the drum 21 meets the laundry entrance 11 of the water tank 9. For example, ribs 28 are erected on the lower half of the entire periphery of the porous plate 26.

In addition, a flange portion 29 is formed in the entire circumference portion of the porous plate 26, and the flange portion 29 is placed on the entire circumference portion of the hole 25 of the drum 21. Both sides thereof are attached to the drum 21 by screws 30, respectively.

In FIG. 1, a baffle 31 is shown which is provided at substantially equal intervals in a plurality of portions (in this case, three portions) of the inner circumferential portion of the drum 21.

In addition, although not shown in detail, a drying apparatus for drying the laundry by dehumidifying and warming the air in the drum 21 to reflux in the drum 21 is provided inside the outer portion 4.

6 shows a control device 32 for controlling the overall operation of the drum type washing machine, which is made of, for example, a microcomputer. This control device 32 is composed of various types of operation switches of the control panel 33 (see FIG. 2) provided on the front side of the top cover 3. Various operation signals are input from the operation input unit 34, and a position detection signal is input from a position detector 35, which is a drum position detection means provided to detect the rotational position of the drum 21. The water level detection signal is input from a water level detector 36 provided to detect the water level in the water tank 9 (in the drum 21).

Then, on the basis of these inputs and previously stored control programs, the control device 32 includes a display unit 37 composed of various display elements of the operation panel 33 and the drum lock device 14. Drive source (for example, geared motor) 38, water supply valve 17, motor 13, drain valve 15, dehumidifying water supply valve 39 of the drying apparatus, and blower 40 And a driving control signal to the driving circuit 42 for driving the heater 41.

Next, the operation of the above configuration will be described.

First, the state before starting the operation leaves the state by the control performed at the time when the last operation is finished. This is because the controller 32 detects the rotational position of the drum 21 by the position sensor 35, and the rotation of the drum 21 is connected to the laundry inlet and outlet 11 of the water tank 9 at the laundry inlet and outlet of the drum 21. It stops at the position where 22 22 meets, and also the drum lock apparatus 14 was operated to the lock execution position in that position, and the drum lock apparatus 14 wash | cleans the water of the above-mentioned water tank 9 by the operation. The drum 21 is locked at the position where the laundry entrance and exit 22 of the drum 21 meets the entrance and exit 11. The locked position is also the position where the water receiving port 24 of the drum 21 meets the water supply outlet 20 of the water supply device 18, and thus the position sensor 35 and the drum lock device 14. Serves as a positioning means for positioning the drum 21 at a rotational position where the water receiving port 24 of the drum 21 meets the water supply outlet 20 of the water supply device 18.

In this state, the lids 6, 12, 23 are opened and the drums are opened from the laundry inlet 5 of the top cover 3 through the laundry inlet 11 of the water tank 9 and the laundry inlet 22 of the drum 21. The laundry is put into 21, and operation starts. When the operation is started, water is supplied for the first time. This water supply is performed by opening the water supply valve 17 of the water supply device 18, and the water supplied through the water supply valve 17 is a treatment agent (in this case, a detergent and a bleach) set in the input case 7. Flows through the water supply hose 19 from the inlet case 7 and exits from the water supply outlet 20 of the water tank 9 as shown by the arrow in FIG. 1, and receives the water supply port of the drum 21. It is supplied into the drum 21 through the 24. After that, the washing operation is executed.

Thus, in this structure, the drum 21 is supplied from the water supply outlet 20 by positioning and supplying the drum 21 to the rotation position where the water receiving port 24 of the drum 21 meets the water supply outlet 20. It is possible to feed water directly into the drum 21 through the water receiving port 24. Therefore, the laundry in the drum 21 can be restrained and the water can be soaked efficiently, and the water can be effectively supplied, so that the washing effect can be obtained quickly, and the washing time can be shortened.

Moreover, in the case of this structure, the above-mentioned positioning of the drum 21 is performed in the position where the laundry entrance 11 of the water tank 9 and the laundry entrance 22 of the drum 21 meet, and those laundry Execution of water supply by starting operation following the introduction of laundry from the entrances 11 and 22, ie from the water supply outlet 20 into the drum 21 through the water inlet 24 of the drum 21. Direct water supply of the drum 21 can be performed without positioning control of the drum 21 separately from the combination of the laundry entrances 11 and 22.

 In addition, in the case of this configuration, the water receiving port 24 of the drum 21 is porous, whereby the water supplied into the drum 21 is sprinkled with water in the form of a shower, so the drum 21 The laundry can be uniformly distributed and watered more efficiently and efficiently, and the washing effect can be obtained even faster, and the washing time can be further shortened.

In addition, in the case of this configuration, when the drum 21 is positioned as described above, the water receiving port 24 meets the water supply outlet below the water supply outlet 20 of the water supply device 18. In this way, the water flowing out of the water supply outlet 20 can be smoothly supplied into the drum 21 through the water receiving port 24, and the water can be supplied more efficiently. Can be obtained even faster and the washing time can be further reduced.

In addition, in the case of this structure, the water inlet 24 is provided with the rib 28 standing up and provided in the lower side side at the time of positioning the drum 21 as mentioned above. Since the water flowing down the upper surface of 24) can be prevented by the ribs 28 and flowed down from the water inlet 24 without passing straight, the water supply can also be efficiently carried out by this, and the washing effect is also achieved. Can be obtained even faster and the washing time can be further shortened.

7-11 show the 2nd and 3rd Example (2nd and 3rd Embodiment) of this invention, and attaches | subjects the same code | symbol to the same part as 1st Example, and abbreviate | omits description. , Only the other parts are explained.

Second Embodiment

In the second embodiment shown in FIGS. 7 to 9, the water inlet 51 is formed as an edge of the lid 23 of the drum 21 in place of the water inlet 24 described above. Preferably, it is formed in the space | interval between the front-end | tip part of the cover main plate 23a of the cover 23, and the tip-edge part of the cover auxiliary plate 23b. In addition, in FIG. 8, "52" shows the decorative cover installed in the surface of the front-end | tip part of the cover main plate 23a, and "53" shows the reinforcement board provided in the back surface of the front-end | edge part of the cover main plate 23a. Indicates a reinforcing plate provided on the rear surface of the tip edge portion of the lid auxiliary plate 23b.

Then, as shown in Fig. 9, after the operation is started (started), the control device 32 rotates the drum 21 from the same position as shown in Fig. 1 by the motor 13 (step). (step) (S1), the rotational position of the drum 21 is detected by the position sensor 35 at the position where the water receiving port 51 meets the laundry entrance 11 of the water tank 9. It stops and determines a position (step S2). At this time, the lock of the drum 21 by the drum lock device 14 is not performed, but may be performed.

Thereafter, the water supply valve 17 is opened (step S3), thereby supplying water into the drum 21 from the water supply outlet 20 of the water supply device 18 through the water supply receiving port 51. In this state, the water level detection signal from the water level sensor 36 determines whether or not the water level in the water tank 9 (in the drum 21) has reached the set water level (step S4). After the determination is made (YES), the water supply valve 17 is closed to terminate the water supply (step S5), and then the washing operation is executed (step S6).

In this way, the water inlet 51 is formed at the edge of the lid 23 of the drum 21 to supply water, so that the water inlet 21 is not formed in the drum 21 (the water inlet of the lid 23). It can be used as a sphere 51 to directly feed water in the drum (21).

In addition, if the lid 23 is not a two-piece structure of the lid main plate 23a and the cover auxiliary plate 23b, but the one-piece configuration, the water inlet 51 is provided between the lid and the body of the drum 21. It may be formed.

In addition, the positioning control of the drum 21 which does not involve the lock of the drum 21 by the drum lock apparatus 14 mentioned above may be performed at the time of water supply from the start to the end, such as before a rinse operation. good.

Third Embodiment

In the third embodiment shown in FIGS. 10 and 11, the plurality of water passage holes formed in the main body of the drum 21 in place of the baffle 61 of the drum 21 is replaced with the above-described baffle 31. The water supply port 64 which replaces the water receiving port 24 and the water receiving port 51 mentioned above by having the hollow shape connected to 62, and having the water injection port 63 at the front-end | tip is mentioned.

Even in this way, it is possible to feed water directly into the drum 21 without using a water receiving port in the drum 21 (using the baffle 61 as the water receiving port 64).

In this case, the baffle 61 is also configured to include all the baffles of the drum 21 as described above, so that the drum 21 is provided with a plurality of water supply receiving ports 64.

In addition, in this case, after the operation is started (started) as shown in FIG. 11, the control device 32 rotates the drum 21 from the same position as shown in FIG. 1 by the motor 13 ( Step (S101), by detecting the rotational position by the position sensor 35, the position where the water receiving port 64 closest to the laundry entrance 11 of the water tank 9 meets the rotation of the drum 21 And stops (step S102). At this time, the lock of the drum 21 by the drum lock device 14 is not performed, but may be performed.

Thereafter, the water supply valve 17 is opened (step S103), whereby water is supplied from the water supply outlet 20 of the water supply device 18 to the drum 21 through the water supply receiving port 64. Thereafter, the water supply valve 17 is closed to stop the water supply (step S104), and then the water level in the water tank 9 (in the drum 21) is changed by the water level detection signal from the water level sensor 36. It is determined whether or not the set water level has been reached (step S105), and while it is determined that it has not reached (no), the process returns to step S101 and steps S101 to S105 are repeated. That is, in this case, the drum 21 is positioned at a position where the plurality of water receiving ports 64 meet the laundry entrance 11 of the water tank 9 in turn, and water is supplied every time.

As a result, the laundry in the drum 21 can be uniformly watered and water can be fed more efficiently and efficiently. Therefore, even in this case, the washing effect can be obtained even faster and the washing time can be further shortened.

In addition, if it is determined that the step S105 is reached (YES), the washing operation is executed (step S106).

Here, the water receiving port 64 may be configured in some of them instead of all of the baffles included in the drum 21, or may be configured in only one of them and the positioning control shown in FIG. 9 may be performed. .

In addition, the porous structure of the water receiving port 24 shown in 1st Example may be comprised in the lattice-shaped structure.

Moreover, the structure of the whole drum type is not limited to a top open type, but may be a front open type.

In addition, this invention is not limited only to the Example mentioned above and shown in the figure, It can change and implement suitably within the range which does not deviate from the summary.

According to the present invention, it is possible to effectively water the laundry in the drum, it is possible to obtain a washing effect quickly, it is possible to shorten the washing time.

1 is a longitudinal sectional side view of an essential part showing a first embodiment of the present invention;

2 is a perspective view of an entire washing machine;

3 is a perspective view of a washing machine main part,

4 is a longitudinal side view of the entire washing machine;

5 is an enlarged perspective view of the water receiving part;

6 is a block diagram of an electrical configuration;

FIG. 7 is an equivalent view of FIG. 1 showing a second embodiment of the present invention; FIG.

8 is an enlarged vertical cross-sectional side view of the water receiving port portion;

9 is a flowchart for explaining the operation,

10 is a correspondence of FIG. 1 showing a third embodiment of the present invention, and

11 is an equivalent view of FIG. 9.

* Explanation of symbols for the main parts of the drawings

9: Countertop 11: Laundry Gateway

14: drum lock device (positioning means) 18: water supply device

20: water outlet 21: drum

22: laundry doorway 23: cover

24, 51, 64: water inlet 26: perforated plate

28: rib 35: position sensor (positioning means)

61: baffles

Claims (7)

water tank, A drum installed inside the tank, A driving device for rotating the drum, Positioning means for positioning the drum in a rotational direction, and A drum type washing machine having a water supply device for supplying water, The water supply outlet of the water supply device is formed in the water tank The water receiving port is formed in the drum, Drum-type washing machine characterized in that the water supply by positioning the drum at a rotational position where the water receiving port meets the water supply outlet of the water supply device. The method of claim 1, And the water tank and the drum each have a laundry entrance, and the drum is positioned at a position where the two laundry entrances meet. The method of claim 1, Drum type washing machine characterized in that the water receiving port forms a porous shape. The method of claim 1, The drum type washing machine characterized in that when the drum is positioned, the water receiving port meets the water supply outlet at the bottom of the water supply outlet of the water supply device. The method of claim 4, wherein The drum type washing machine, characterized in that the rib is placed on the lower side when the drum is positioned. The method of claim 1, The drum is provided with a laundry entrance, drum washing machine, characterized in that the water inlet is formed at the edge of the cover for closing the laundry entrance. The method of claim 1, The drum is provided with a baffle, the baffle is a drum type washing machine, characterized in that the water receiving port.