WO2011145382A1

WO2011145382A1 - Washing machine

Info

Publication number: WO2011145382A1
Application number: PCT/JP2011/055516
Authority: WO
Inventors: 良典臼井; 裕士遠藤; 翔悟山村; 勝彦浅沼
Original assignee: 株式会社東芝; 東芝コンシューマエレクトロニクス・ホールディングス株式会社; 東芝ホームアプライアンス株式会社
Priority date: 2010-05-21
Filing date: 2011-03-09
Publication date: 2011-11-24
Also published as: CN104264425A; EG26785A; JP2011240078A; CN102251378A; JP5575542B2

Abstract

The disclosed washing machine includes: a washing machine body that has a laundry load/unload opening formed in the upper surface thereof; a water-receiving tub that is elastically supported inside the washing machine body; a rotary tub that is rotatably provided inside the water-receiving tub and that serves as a washing-and-spin-drying tub; and a water supply device that has a water supply valve connected to a water supply source, and a water supply case for receiving and storing the water from the water supply valve, said water supply device being provided in the upper section of the washing machine body and supplying water into the rotary tub. The water supply case includes a water-receiving section that receives the water from the water supply valve, and a storage section that is provided at a position lower than the water-receiving section and that stores the water from the water-receiving section. Of the wall surfaces that form the storage section, the side wall surface that faces toward the inside of the rotary tub from above is provided with a water injection hole for supplying the water stored in the storage section into the rotary tub.

Description

Washing machine

The embodiment of the present invention relates to a washing machine.

Conventionally, in a washing machine, a water supply device including a water supply valve, a water supply case, and a water supply pipe is provided above a water receiving tub that accommodates a rotation tub, and water is supplied from the water supply pipe of the water supply device toward the inside of the rotation tub. It was dropped and poured water.

For this reason, water is directly applied only to the laundry located directly below the water supply pipe of the water supply device, the range of water injection is limited, and it is not possible to inject water extensively into the laundry, and some of the laundry Water only penetrates directly into the laundry, and the surrounding laundry has to gradually permeate, and the laundry is slow to soak, making it impossible to use the water efficiently. It was difficult to contribute to improvement.

JP 2001-46788 A

Therefore, we will provide a washing machine that can inject water into laundry extensively, use water efficiently, and improve washing performance.

The washing machine according to the present embodiment includes a washing machine body, a water receiving tank, a rotating tank, and a water supply device. The washing machine main body has a laundry outlet / outlet formed on the upper surface. The water receiving tank is elastically supported in the washing machine body. The rotating tub corresponds to a washing / dehydrating tub disposed rotatably in the water receiving tub. The water supply device is disposed in the upper part of the washing machine main body and supplies water into the rotating tub. The water supply device includes a water supply valve and a water supply case. The water supply valve is connected to a water supply source. The water supply case receives and stores water from the water supply valve. The water supply case includes a water receiving part and a storage part. The water receiving portion receives water from the water supply valve. A storage part is provided in the position lower than the said water receiving part, and stores the water from this water receiving part. Of the wall surfaces forming the reservoir, a water injection hole for supplying water in the reservoir into the rotary tank is formed in a side wall surface facing the inside of the rotary tank from above.

Fig. 3 is a longitudinal side view of Fig. 3 taken along line AA according to one embodiment. Longitudinal side view of washing machine Top view of the water supply device with the water channel cover removed The exploded perspective view which looked at the water supply case from the diagonal upper part ahead The exploded perspective view which looked at the water supply case from the back diagonally upward Top view of water supply case Front view of water supply case The figure for demonstrating the effect | action of this embodiment

Hereinafter, an embodiment will be described with reference to the drawings.
FIG. 2 shows the overall structure of a vertical washing machine. In FIG. 2, the left side is the front of the washing machine. The washing machine main body 1 is configured such that a top cover 3 is attached to an upper surface opening of an outer box 2 that forms an outer shell of the washing machine, and an opening 3 a that is a laundry outlet / outlet is provided on the upper surface of the top cover 3. ing. A water receiving tank 4 is provided in the outer box 2. The water receiving tank 4 has a bottomed cylindrical shape with an open upper end, the central axis is directed in the vertical direction, and is suspended and elastically supported by an elastic support mechanism (not shown). The water receiving tub 4 is provided with a rotating tub 5 serving as a washing / dehydrating tub so as to be rotatable about the central axis of the water receiving tub 4. The rotating tub 5 stores laundry therein, has a bottomed cylindrical shape with an open top, and has a central axis oriented in the vertical direction. A large number of dewatering holes 5 a are provided on the inner wall surface of the rotating tub 5.

A circulating water channel 6 extending in the vertical direction is provided on the inner wall surface of the rotating tank 5. The cover member 7 constituting the main part of the circulating water channel 6 is formed in a shape that is long in the vertical direction with a synthetic resin, and is attached to the inner wall surface of the rotating tub 5. A detergent charging port 8 is provided on the upper part of the cover member 7, and a charging cover 9 for opening and closing the detergent charging port 8 is provided. The lower end portion of the cover member 7 is opened and an outlet 10 is provided. A lint filter (not shown) is accommodated in the cover member 7, and a detergent guide path (not shown) is provided on both the left and right sides of the lint filter. The detergent introduced into the detergent introduction port 8 is introduced into the bottom of the rotary tank 5 through the outlet 10 through the detergent guide path.

A liquid-filled balance ring 11 is provided at the upper end of the rotating tank 5. The balance ring 11 maintains a balance when the rotating tub 5 is rotated. A pulsator 12 is rotatably provided at the bottom of the inner side of the rotating tank 5, and a motor 13 and a clutch mechanism part 14 are provided on the outer bottom surface of the water receiving tank 4. The motor 13 is a drive source that rotationally drives the rotating tub 5 and the pulsator 12, and is connected to the rotating tub 5 and the pulsator 12 via the clutch mechanism 14. The clutch mechanism unit 14 is a well-known one described in, for example, Japanese Patent Application Laid-Open No. 2000-279692, and has a mechanism for switching so that the driving force of the motor 13 is transmitted to one or both of the rotary tub 5 and the pulsator 12. Have.

A lead-out pipe 15 is connected to the bottom of the water receiving tank 4. The outlet pipe 15 is for discharging the washing water stored in the water receiving tank 4. A drain pipe 17 is connected to the outlet pipe 15 via a drain valve 16. The end of the drain pipe 17 is led out to the outside of the washing machine main body 1, and the washing water in the water receiving tank 4 is discharged by opening the drain valve 16.

A lid 19 is provided at the center of the top surface of the top cover 3. By opening the lid 19, the opening 3 a of the washing machine body 1 is opened. A water receiving tank cover 20 that covers the upper inner periphery of the water receiving tank 4 is provided at the upper end of the water receiving tank 4. The water receiving tank cover 20 is provided with an opening 20 a corresponding to the opening 5 b of the rotating tank 5.

As shown in FIG. 2, an operation panel 43 is provided outside the front surface portion of the top cover 3, and a control device 44 is provided inside the front surface portion of the top cover 3. The control device 44 is composed of, for example, a microcomputer, a water level detection signal from a water level sensor (not shown) provided to detect the water level in the water receiving tank 4, an operation signal from an operation unit (not shown) provided on the operation panel 43, A rotation speed detection signal or the like from a rotation sensor (not shown) provided to detect the rotation speed of the motor 13 is input.
A water supply device 21 is provided at the rear portion in the top cover 3. The water supply device 21 supplies water supplied from a water supply source such as a water supply into the rotary tub 5 and includes a water supply valve 22, a water channel case 23, a water supply case 24, and the like.

As shown in FIGS. 1 and 3, the water supply device 21 includes a water channel case 23 and a water supply valve 22 at an upper portion thereof, and a water supply case storage portion 21 a in which a water supply case 24 is stored at a lower portion thereof. The water supply case storage portion 21a can be inserted and removed in the front and rear directions and is detachably stored.

As shown in FIGS. 1 and 3, the water channel case 23 is provided with a first water channel 25 and a second water channel 26 therein. The water channel case 23 covers the bottom wall 27, the outer peripheral wall 28 erected on the outer periphery of the bottom wall 27, the partition wall 29 erected inside, and the upper end portion of the water channel case 23, and the outer peripheral wall 28. And a water channel cover 30 that is liquid-tightly joined to the upper end of the partition wall 29. The partition wall 29 partitions the space in the water channel case 23 and forms a first water channel 25 and a second water channel 26.

The first water channel 25 is in the water channel case 23 and is partitioned by the right side wall 28 a and the front side wall 28 b of the outer peripheral wall 28 and the partition wall 29, and is located in front of the water supply valve 22. It is comprised from the part 25a and the 2nd water channel part 25b connected to the left side of this 1st water channel part 25a. A number of water drain holes 31 are provided in the bottom wall of the second water channel portion 25b.

The second water channel 26 is in the water channel case 23, and a third water channel portion 26a formed between the rear side wall portion 28c of the outer peripheral wall 28 and the partition wall 29, and on the left side of the third water channel portion 26a. It is composed of a fourth water channel part 26b formed between the front side wall part 28b and the rear side wall part 28c of the outer peripheral wall 28. A plurality of, for example, three waterfall holes 32 are provided on the bottom wall of the fourth water channel portion 26b.

The water supply device 21 includes, for example, a double-type water supply valve 22, and the water supply valve 22 includes a first water supply valve 22 a, a second water supply valve 22 b, a first water supply valve 22 a, and a second water supply valve. It has a water supply connection port 22c for supplying water to 22b.
The rear side wall portion 28c of the water channel case 23 is provided with a first water inlet 23a at a position corresponding to the outlet 33 of the first water supply valve 22a, and the outlet 33 through the first water inlet 23a. And the first water channel 25 communicate with each other. Similarly, a second water inlet 23b is provided at a position corresponding to the outlet 35 of the second water supply valve 22b, and the outlet 35 and the second water channel 26 are connected via the second water inlet 23b. Communicate.

As will be described in detail later, the first water supply valve 22a is opened when water is supplied to the rotating tub 5 during the washing process and the rinsing process. The water discharged from the first water supply valve 22a as shown by the arrow C1 in FIG. 3 passes through the first water channel portion 25a of the first water channel 25 as shown by the arrow C2 in FIG. 3, and the arrow C3 in FIG. As shown in FIG. 5, the water drops fall from the water fall hole 31 through the second water channel portion 25b. And the water which fell from the water fall hole 31 is received by the water receiving part 36 of the water supply case 24, and is stored by the water storage part 37 which is a storage part.

On the other hand, the second water supply valve 22b is opened when a laundry aid such as a softener is supplied into the rotary tub 5 during rinsing. The water discharged from the second water supply valve 22b as shown by the arrow D1 in FIG. 3 passes through the third water channel portion 26a of the second water channel 26 as shown by the arrows D2, D3, and D4 in FIG. As shown by the arrow D5 in FIG. 3, the water falls from the waterfall hole 32 through the fourth water channel portion 26b. And the water which fell from the water fall hole 32 is stored by the washing adjuvant storage part 38 which is a storage part of the water supply case 24. FIG. One end of a hose (not shown) connected to a water supply source such as a water supply, for example, a water tap, is connected to the water supply connection port 22c.

Next, the water supply case 24 will be described in detail with reference to FIGS.
The water supply case 24 includes a water storage portion 37 that stores water that has fallen from the water channel case 23 at a front portion thereof, and a water receiving portion 36 on the right side so that the water supply case 24 is divided in the width direction on the rear side thereof. On the left side, there is provided a washing aid storage unit 38. The water reservoir 37 has an opening 37a for communicating with the water receiver 36 at the rear end.

The water storage part 37 has a handle part front wall 39 formed so as to project forward in an arc shape in the upper part when viewed from the front, and a handle part 40 is provided on the back part of the handle part front wall 39. . The handle 40 is partitioned by a reservoir front wall 41, a handle front wall 39, and an upper wall 42 formed so as to project in an arc shape inside the water reservoir 37. The lower end of the handle portion 40 is open, and the user can hook his / her finger on the water supply case 24 from this opening.

The left front wall 41a and the right front wall 41b are provided on the left and right sides of the handle portion 40 of the storage portion front wall 41. The left front wall portion 41a and the right front wall portion 41b are formed as side walls that bulge forward. The left front wall portion 41a and the right front wall portion 41b are provided so as to face the inside of the rotary tank 5 from above.

The left front wall portion 41a includes a left first water injection hole 43a, a left second water injection hole 43b, and a left third water injection hole 43c, which are water injection holes, in order from the outer side to the inner side in the lateral direction. 41a is formed so as to be perpendicular to the surface, and the center axis directions are different from each other. That is, the directions of water sprayed from the left first water injection hole 43a, the left second water injection hole 43b, and the left third water injection hole 43c are different from each other when viewed from above.

Further, the left first water injection hole 43a is provided at a position that is larger in diameter and lower than the left second water injection hole 43b, and the left second water injection hole 43b is larger in diameter than the left third water injection hole 43c. And provided at a low position. That is, these

water injection holes

43a, 43b, and 43c are provided at positions having a height difference, respectively, so that the water injection holes located on the lower side are larger than the water injection holes located on the other upper side.

On the other hand, the right front wall 41b has a right first water injection hole 44a, a right second water injection hole 44b, which are water injection holes in order from the outer side in the lateral direction to the inner side in the same manner as the left front wall part 41a described above. The right third water injection hole 44c is formed so as to be perpendicular to the surface of the right front wall 41b, and is provided so that the respective central axis directions are different. That is, the directions of water sprayed from the right first water injection hole 44a, the right second water injection hole 44b, and the right third water injection hole 44c are different from each other when viewed from above.

Furthermore, the right first water injection hole 44a is provided at a position that is larger in diameter and lower than the right second water injection hole 44b, and the right second water injection hole 44b is larger in diameter than the right third water injection hole 44c. And provided at a low position. That is, these

water injection holes

44a, 44b, 44c are provided at positions having a height difference, respectively, so that the water injection holes located on the lower side are larger than the water injection holes located on the other upper side.

The left first water injection hole 43a, the left second water injection hole 43b, the left third water injection hole 43c, the right first water injection hole 44a, and the right second water injection hole of the right front wall part 41b. 44 b and the right third water injection hole 44 c are provided at a position lower than the bottom wall 46 of the water receiving portion 36.

The water reservoir 37 has an open top surface, and the water reservoir 37 is attached to the water reservoir 37 from above to close the opening. The water storage part cover 48 is when the water storage part 37 is mounted, and the cover front surface wall part 48 a formed so as to overlap the handle part front wall 39 of the water storage part 37 and the cover upper surface that closes the opening of the water storage part 37. The wall portion 48b is formed. As shown in FIGS. 1 and 5, the cover upper surface wall portion 48 b is a rectangular plate-like rectifying plate that is located inside the water storage portion 37 and in front of the opening 37 a of the water storage portion 37 when the water storage portion 37 is mounted. 49 is integrated. The rectifying plate 49 faces the opening 37a of the water storage part 37 and extends from the lower surface of the cover upper surface wall part 48b to a position lower than the opening 37a. The rectifying plate 49 is a buffer plate that suppresses the force of receiving water flowing into the water storage unit 37 from the opening 37 a of the water storage unit 37, and a guide plate that guides water downward in the water storage unit 37. Also works.

The bottom wall 45 of the water storage part 37 has an upwardly inclined shape, is provided at a position lower than the bottom wall 46 of the water receiving part 36, and the water storage part 37 is formed deeper than the water receiving part 36, The water storage part 37 is provided at a position lower than the water receiving part 36. As shown in FIG. 7, a drain hole 47 is formed in the bottom wall 45 of the water storage portion 37 at the lowest portion located in the rotating tub 5 when viewed from above. This drain hole 47 prevents water from remaining in the storage part 37 after using the washing machine.

The water receiving portion 36 of the water supply case 24 has a substantially rectangular container shape, and communicates with the water storage portion 37 through the opening 37 a of the water storage portion 37. The bottom wall 46 of the water receiving portion 36 is provided so as to be inclined downwardly, and water injection holes 50 are provided on both left and right sides of the rear end portion of the bottom wall 46. A cutout portion 51 a serving as an overflow portion is provided at the upper end portion of the left side wall 51 of the water receiving portion 36. The height of the rear side wall 52 of the water receiving portion 36 is set to be lower than the cutout portion 51 a of the left side wall 51.

The washing aid storage portion 38 has a substantially rectangular container shape, and is provided to be positioned below the fourth water channel portion 26b of the water channel case 23 as shown in FIG. 3, and the upper end portion of the rear side wall 55 is an overflow portion. It is formed one step lower than the other wall surfaces. The bottom wall 53 of the washing aid reservoir 38 has a siphon opening (not shown) formed in a substantially central portion, and a siphon portion 54 is formed above the siphon opening. The siphon opening and siphon portion 54 are located in the rotating tub 5 when viewed from above when the water supply case 24 is stored in the water supply case storage portion 21a of the water supply device 21. As shown in FIGS. 4 and 5, the siphon part 54 includes a cylindrical part 54a projecting upward from the peripheral edge of the siphon opening of the bottom wall 53 of the washing aid storage part 38, and a cylindrical part 54a. It is comprised from the hole part which is not shown in figure formed in the upper surrounding wall part, and the cap part 54b which covers the cylindrical part 54a from upper direction as shown in FIG.3 and FIG.6. The lower end portion of the cap portion 54b extends to the vicinity of the bottom wall 53 of the washing aid storage portion 38.

In the state where the water supply case 24 is stored in the water supply case storage portion 21a, the water supply device 21 is provided with a gap between the back portion and the outer bottom portion of the water supply case 24. The bottom wall 21b of the water supply device 21 is formed in a slanting shape with a front-down, and a water injection hole 21c is provided at the tip. The water injection hole 21c is provided so as to be located in the rotary tank 5 when viewed from above.

The gap between the water supply device 21 and the water supply case 24 becomes a water channel in the water supply device 21. As will be described in detail later, the water that has flowed into the water supply device 21 from the water receiving portion 36 and the washing aid storage portion 38 falls into the bottom wall 21 b of the water supply device 21. Then, it flows down along the bottom wall 21b as shown by an arrow B2 in FIG. 1, and is poured into the rotating tub 5 from a water injection hole 21c as shown by an arrow B3 in FIG.

Next, the operation of the above configuration will be described with reference to FIG. FIG. 8 schematically shows a state in which the rotary tub 5 is viewed from above. The water injection holes 43a to 43c and the water injection holes provided in the left front wall 41a and the right front wall 41b of the water supply case 24, respectively. Water discharge paths La to Lc and water discharge paths Ra to Rc supplied from 44a to 44c into the rotary tank 5 are shown. FIG. 8 shows a state immediately after the laundry M is dehydrated. Before the washing operation is performed, the laundry M is stored in the rotary tub 5, and a detergent for washing is supplied to the detergent inlet 8 in the rotary tub 5, so that the washing aid storage unit 38 of the water supply case 24 is loaded. A softener as a washing aid is put in.

In the washing operation of the present embodiment, a washing process, a rinsing process, and a dehydration process that are generally performed are sequentially performed.
In the washing process, laundry weight detection, water supply, and washing are performed.

The control device 44 determines the amount of water supplied to the water receiving tub 4 based on the detected laundry weight, and starts water supply with the rotating tub 5 stopped. In this water supply, the control device 44 opens the first water supply valve 22a with the drain valve 16 closed. Thereby, the water from a water supply source flows into the 1st water channel 25 of the water channel case 23 from the 1st water supply valve 22a. Specifically, as shown by the arrow C1 in FIG. 3, the water discharged from the discharge port 33 of the first water supply valve 22a enters the water channel case 23 from the first water inlet 23a. And it flows through the 1st waterway part 25a as shown by the arrow C2 of FIG. 3, and flows into the 2nd waterway part 25b as shown by the arrow C3 of FIG.

The water that has flowed into the second water channel portion 25 b falls from the water fall hole 31 and is received by the water receiving portion 36 of the water supply case 24. The water received by the water receiving portion 36 flows backward along the bottom wall 46 of the water receiving portion 36 as indicated by an arrow B1 in FIG. 1 and falls from the water injection hole 50 to the bottom wall 21b of the water supply device 21. The water flowing down to the bottom wall 21b flows forward along the bottom wall 21b as shown by an arrow B2 in FIG. 1, and falls into the rotary tank 5 from the water injection hole 21c as shown by an arrow B3 in FIG. The water that has flowed down from the water injection hole 21 c is poured directly under the water supply device 21 in the rotary tank 5.

When the water level of the water receiving part 36 gradually rises, the water received by the water receiving part 36 flows into the water storing part 37 from the opening 37a of the water storing part 37 as shown by an arrow B4 in FIG. . The water that has flowed into the water storage unit 37 from the opening 37a of the water storage unit 37 collides with the rectifying plate 49 provided in the water storage unit 37 and falls downward. In the water reservoir 37, the water level gradually rises from the bottom. As the water level of the water reservoir 37 rises, the left and right side first

water injection holes

43a and 44a, the left and right side second water injection holes 43b and 44b, and the left and right side third water injection holes 43c provided in the left and right

front wall parts

41a and 41b. , 44c in the order of water, as shown by an arrow B5 in FIG.

The water injected from the left and right first

water injection holes

43a and 44a, the left and right second water injection holes 43b and 44b, and the left and right both side third

water injection holes

43c and 44c is injected in different directions as viewed from above. Moreover, the water pressure per unit area applied to the water injection hole can be appropriately adjusted by forming the water injection hole provided at a low position, that is, the water injection hole having a higher water head, and the water sprayed from the water injection hole can be adjusted to a desired distance. Can be skipped.

Specifically, as shown in FIG. 8, the water sprayed from the left first water injection hole 43 a falls through the water discharge path La to the left inner peripheral edge of the rotary tank 5. Similarly, the water sprayed from the left second water injection hole 43b and the left third water injection hole 43c passes through the water discharge paths Lb and Lc, respectively, and falls to the left inner peripheral edge of the rotary tank 5. Water sprayed from the right first water injection hole 44a, the right second water injection hole 44b, and the right third water injection hole 44c passes through the water discharge paths Ra, Rb, and Rc, respectively, and falls to the right inner periphery of the rotary tank 5.

The water level in the water receiving part 36 and the water storage part 37 further rises. When the water level X shown by a two-dot chain line in FIG. 1 is exceeded, the water level overflows from the upper end of the rear side wall 52 of the water receiving part 36. As shown by the arrow B6, water overflows into the water supply apparatus 21. The overflowing water flows down the bottom wall 21b of the water supply device 21 as shown by an arrow B2 in FIG. 1, and falls into the rotary tank 5 through the water injection hole 21c as shown by an arrow B3 in FIG. When the water pressure of the water source is high, the water in the water receiving part 36 and the water storage part 37 overflows from the notch 51a provided at the upper end of the left side wall 51 of the water receiving part 36 beyond the water level X. , Overflows into the water supply device 21. The overflowing water flows down the bottom wall 21b of the water supply device 21 as shown by an arrow B2 in FIG. 1, and falls into the rotary tank 5 through the water injection hole 21c as shown by an arrow B3 in FIG.

In this way, the water supply case 24 supplies water over a wide area directly below the water supply device 21 in the rotating tub 5 and to the inner peripheral edge of the rotating tub 5, and efficiently wets the laundry M. When a predetermined amount of water accumulates in the rotary tank 5, the control device 44 closes the first water supply valve 22 a and instead drives the pulsator 12 to rotate forward and backward by the motor 13. Thereby, the laundry M accommodated in the rotating tub 5 is washed.

When the washing process is completed, the control device 44 executes the rinsing process. In the rinsing process, drainage, first intermediate dewatering, shower rinsing, second intermediate dewatering, water supply, and rinsing are performed. First, the control device 44 stops the rotational drive of the pulsator 12, opens the drain valve 16, and drains the water in the water receiving tank 4 from the outlet pipe 15 and the drain pipe 17 to the outside of the machine.

Next, the control device 44 drives the rotary tub 5 to rotate at a high speed in one direction with the drain valve 16 opened, and performs centrifugal dehydration of the laundry M in the rotary tub 5, that is, first intermediate dehydration. Do.
Next, the control device 44 performs shower rinsing by opening the first water supply valve 22a while rotating the rotating tub 5 at a low speed while the drain valve 16 is opened. At this time, water from the water source is supplied from the water supply device 21 into the rotating tub 5 in the same manner as the water supply during the washing process described above. Accordingly, clean water used for rinsing can be supplied to a wide range in the rotary tub 5, and can be directly applied to the laundry M biased to the inner peripheral edge in the rotary tub 5 during the first intermediate dehydration. Shower rinse can be performed efficiently.

Next, the control device 44 closes the first water supply valve 22 a and opens the drain valve 16 to drive the rotating tub 5 to rotate in one direction at a high speed, thereby centrifugally dehydrating the laundry M in the rotating tub 5. That is, the second intermediate dehydration is performed.
Next, the control device 44 stops the rotation of the rotating tub 5 and closes the drain valve 16 to open the first water supply valve 22 a to supply water into the rotating tub 5. Also at this time, water from the water source is supplied from the water supply device 21 into the rotating tub 5 in the same manner as the water supply during the washing process described above. As a result, clean water from the water source can be supplied over a wide area in the rotating tub 5 and can be directly applied to the laundry M biased to the inner peripheral edge of the rotating tub 5 during the second intermediate dehydration. Water immersion can be performed efficiently. Then, the control device 44 rotates the pulsator 12, closes the first water supply valve 22a after a lapse of a predetermined time, opens the second water supply valve 22b for a predetermined time, and performs rinsing.

Therefore, when the second water supply valve 22b is opened during rinsing, the water from the water supply source flows from the second water supply valve 22b to the second water channel 26 of the water channel case 23. Specifically, as shown by the arrow D1 in FIG. 3, the water discharged from the discharge port 35 of the second water supply valve 22b enters the water channel case 23 from the second water inlet 23b, and the arrow D2, FIG. As shown to D3 and D4, it flows through the 3rd waterway part 26a to the 4th waterway part 26b as shown by the arrow D5 of FIG.

The water that has flowed into the fourth water channel portion 26 b falls from the waterfall hole 32 and is supplied to the washing aid storage portion 38 of the water supply case 24. Thereby, the softener previously stored in the laundry assistant reservoir 38 is dissolved in the water supplied in the laundry assistant reservoir 38. When the level of the water supplied into the washing auxiliary agent reservoir 38 reaches the height of the hole of the siphon part 54, the water supplied to the laundry auxiliary agent reservoir 38 and containing the softener becomes the siphon principle. Therefore, it passes between the outer peripheral wall of the cylindrical portion 54a and the inner peripheral wall of the cap portion 54b, the hole, the inner peripheral wall of the cylindrical portion 54a, and the siphon opening. Then, the water flowing down from the siphon opening is poured directly under the water supply device 21 in the rotary tank 5. Thereby, the softening agent is supplied into the rotating tub 5.

When the amount of water supplied to the laundry assistant reservoir 38 is large and the water level of the laundry assistant reservoir 38 continues to rise and reaches the upper end of the rear side wall 55, the water supplied to the laundry assistant reservoir 38 is Water overflows from the upper end of the rear side wall 55. The water overflowing from the washing aid reservoir 38 falls to the bottom wall 21b of the water supply device 21, flows down along the bottom wall 21b as indicated by the arrow B2 in FIG. 1, and as indicated by the arrow B3 in FIG. Is poured into the rotary tank 5 from the water injection hole 21c.

When the rinsing process ends, the control device 44 executes the dehydration process. In the dehydration process, drainage and dehydration are performed. The control device 44 stops the rotation of the pulsator 12 and opens the drain valve 16 to execute drainage. Next, the control device 44 performs centrifugal dehydration by rotating the rotary tank 5 at a high speed in one direction with the drain valve 16 opened.
When the dehydration process is completed, the laundry driving course is completed.

According to this embodiment mentioned above, there exist the following effects.
The left front wall 41a and the right front wall 41b of the water storage part 37 are provided so as to face the inside of the rotary tank 5 from above, and the left front wall 41a and the right front wall 41b bulge forward. It is formed in a substantially arc shape. Water injection holes 43a to 43c and water injection holes 44a to 44c are formed in the left front wall 41a and the right front wall 41b, respectively.

For this reason, the water head, that is, the pressure of water accumulated in the water reservoir 37 is applied to the water injection holes 43a to 43c and the water injection holes 44a to 44c, respectively, and water is ejected further from the water injection holes 43a to 43c and the water injection holes 44a to 44c. be able to. Further, by moving the positions where the water injection holes 43a to 43c and 44a to 44c are provided in the left-right direction, the central axis directions of the water injection holes 43a to 43c and 44a to 44c can be changed, and the water injection holes 43a to 43c can be changed. , 44a to 44c can be set to a desired direction.

Further, the left front wall portion 41a is provided with a left first water injection hole 43a, a left second water injection hole 43b, and a left third water injection hole 43c. The right front wall portion 41b has a right first water injection hole 44a and a right side first water injection hole 43a. Two water injection holes 44b and a right third water injection hole 44c are provided. For this reason, water can be poured over a wide range from the left and right sides of the water supply case 24 into the rotating tub 5.

Further, water is injected from the left first water injection hole 43a, the left second water injection hole 43b, the left third water injection hole 43c, the right first water injection hole 44a, the right second water injection hole 44b, and the right third water injection hole 44c. Since the directions of the water to be supplied are set to be different from each other, water can be poured into the rotating tank 5 over a wider range.

Furthermore, since the

water injection holes

43a and 44a are provided in the lower part of the left front wall part 41a and the right front wall part 41b of the water storage part 37, water injection is possible even when the water pressure of the water source is low and the water level of the water storage part 37 is low. Water can be poured into the rotary tank 5 from the

holes

43a and 44a.
Furthermore, the water pressure per unit area applied to the water injection hole can be appropriately adjusted by forming the water injection hole having a lower diameter, that is, the water injection hole having a higher water head, so that the water injected from the water injection hole can be adjusted to a desired distance. Can be skipped.

Further, when the water received by the water receiving part 36 of the water supply case 24 flows into the water storage part 37, the water is received by the rectifying plate 49 and temporarily suppresses the momentum of the water. For this reason, the water injected into the rotary tank 5 from the

water injection holes

43a, 43b, 43c, 44a, 44b, 44c is not affected by the momentum of the water when flowing into the water storage section 37, and each water injection hole Injected by water heads 43a to 43c and 44a to 44c. For this reason, the water can be dropped to a desired location in the rotary tank 5 by appropriately adjusting the height and size of the water injection holes 43a to 43c and 44a to 44c.

Further, even when the water pressure of the water source is high and the amount of water supplied to the water supply case 24 is large, even if the water receiving part 36 and the washing auxiliary agent storage part 38 of the water supply case 24 overflow, Water is poured into the rotary tank 5 through the water channel 21. For this reason, there is no possibility that the water overflowing from the water supply case 24 leaks out of the apparatus.

Further, as shown in FIG. 8, the dehydrated laundry M is biased toward the inner peripheral edge of the rotating tub 5. By setting the falling position of the water ejected from the

water injection holes

43a, 43b, 43c, 44a, 44b, 44c to be the inner peripheral edge in the rotating tub 5, water is directly applied to the laundry M after dehydration. Thus, the laundry M can be immersed in water efficiently, and water can be used efficiently.

Furthermore, the water supply case 24 is provided with a washing auxiliary agent storage section 38, and is detachably stored in the water supply case storage section 21a of the water supply apparatus 21 so that it can be taken in and out in the front-rear direction. The user can put a washing aid such as a softening agent into the washing aid reservoir 38 after taking out the water supply case 24 from the washing machine body 1. For this reason, the user can easily put an appropriate amount of laundry assistant into the laundry assistant reservoir 38, and there is no risk of accidentally putting the laundry assistant into the rotary tub 5.

(Other embodiments)
In addition to the embodiment described above, the following configuration may be adopted.
For example, although the embodiment in which three water injection holes are provided on each of the left and right sides of the water supply case has been shown, the present invention is not limited thereto, and the number of water injection holes may be changed as appropriate.

As described above, according to the washing machine of the present embodiment, the water supplied from the water supply device to the water receiving part of the water supply case is accumulated in the storage part through the water receiving part, and this water is stored in the rotary tank from the water injection hole by the water head. Water is poured further into the water. For this reason, water can be poured over a wide range of laundry, water can be used efficiently, and washing performance can be improved.

The washing machine described above is not limited to the above-described and illustrated embodiments, and can be applied by appropriately changing to various embodiments without departing from the gist thereof.

In the drawings, 1 is a washing machine body, 3a is an opening (a laundry outlet / outlet), 4 is a water receiving tank, 5 is a rotating tank, 21 is a water supply device, 22 is a water supply valve, 24 is a water supply case, 36 is a water receiving part, 37 is a water reservoir (reservoir), 37a is an opening, 38 is a washing aid reservoir (reservoir), 41a is a left front wall (side wall), 41b is a right front wall (side), 43a Is the left first water injection hole (water injection hole), 43b is the left second water injection hole (water injection hole), 43c is the left third water injection hole (water injection hole), 44a is the right first water injection hole (water injection hole), and 44b is the right side The second water injection hole (water injection hole) 44c is a right third water injection hole (water injection hole), and 49 is a current plate.

Claims

A washing machine main body having a laundry outlet / outlet formed on the upper surface,
A water receiving tank elastically supported in the washing machine body;
A rotating tub serving as a washing and dewatering tub disposed rotatably in the water receiving tank;
A water supply device connected to a water supply source and a water supply device that has a water supply case that receives and stores water from the water supply valve, and is provided in an upper part of the washing machine main body to supply water into the rotating tub.
The water supply case has a water receiving portion that receives water from the water supply valve and a storage portion that is provided at a position lower than the water receiving portion and stores water from the water receiving portion,
Of the wall surfaces forming the storage part, a water injection hole for supplying water in the storage part into the rotary tub is formed in a side wall surface facing the inside of the rotary tub from above.
The washing machine according to claim 1, wherein the water supply case is formed with a plurality of water injection holes on both the left and right sides.
The washing machine according to claim 1, wherein the water supply case is formed with a plurality of water injection holes having a height difference.
The washing machine according to claim 3, wherein the water supply case has a water injection hole located on a lower side of the plurality of water injection holes larger than the other water injection holes.
The washing machine according to any one of claims 2 to 4, wherein the water supply case injects water in the storage part from the plurality of water injection holes in different directions.
The storage part of the water supply case has an opening for allowing water from the water receiving part to flow down, and a rectifying plate is disposed on the front side of the opening corresponding to the water receiving part. The washing machine according to any one of claims 1 to 5, wherein
The washing machine according to any one of claims 1 to 6, wherein the water supply case has a storage part for a washing aid and is detachable from the water supply device.