KR100199456B1 - A washing machine - Google Patents

Abstract

The present invention relates to a dehydration combined washing machine having an inner tank, ie, a rotating tank, which receives water together with laundry in a washing process and spins at high speed in a dehydration process, thereby dewatering the laundry by centrifugal force. Is disposed in the upper opening of the outer tank disposed in the inner tank which is rotated at high speed to centrifugal dehydration of the laundry during the dewatering process, the outer tank cover formed with a first recess in a predetermined portion, and the second opening is installed in the central opening of the cover A central cover having a plurality of holes formed therein and a plurality of holes for pouring water into the inner tub in the second recess, and these first and second recesses are adjacent in communication with a step between the bottoms thereof; 2 consists of a water supply valve for pouring water in the upward direction of the recess, and in a variant of the water supply system, the water supply valve is located above the first recess. It is characterized in that it is made to pour in the direction.

Description

Dehydrating combined use washing machine

1 is an exploded perspective view of the main part showing the first embodiment of the present invention.

2 is a side cross-sectional view of the entire washing machine.

3 is a view corresponding to FIG. 1 showing a second embodiment of the present invention.

4 is a longitudinal side view of the water injection section along line 4-4 of FIG.

5 is a longitudinal front view of the water injection section along line 5-5 of FIG.

6 is an enlarged longitudinal cross-sectional view of the inclined surface portion of the water injection portion of FIG.

7 is an enlarged longitudinal sectional view of the water injection hole portion of FIG.

8 is a view corresponding to FIG. 3 showing a third embodiment of the present invention.

9 is an enlarged plan view of the elastic body arrangement portion.

FIG. 10 is an enlarged longitudinal sectional view along line 10-10 of FIG.

11 is a view corresponding to FIG. 9 showing a fourth embodiment of the present invention.

12 is an enlarged longitudinal sectional view along line 12-12 of FIG.

Fig. 13 is a perspective view of an essential part showing a fifth embodiment of the present invention.

14 is a side cross-sectional view of the entire dehydrating washing machine of the fifth embodiment.

Fig. 15 is a plan view of the water injection portion of the outer tank cover and the water trap portion of the inner cover in the fifth embodiment.

FIG. 16 is a longitudinal side view along line 16-16 of FIG.

FIG. 17 is a plan view of the water injection hole of one of the water injection holes shown in FIG.

FIG. 18 is a cross-sectional view taken along line 18-18 of FIG. 17. FIG.

19 is a bottom view of one water injection hole.

* Explanation of symbols for main parts of the drawings

12: outer tank 14: inner tank

20,21: outer cover 21,61: inner cover

23: water injection portion 24,69: water injection hole

27,64: drip tray 29: water inlet cover

30: drip cover 34: hook hook

35 dome 45,49 elastic body

41,46,50: Rib 48,51,70: Slope

65: extension 65a: outer edge

66,67: water draining hole 78: water injection valve

68: water blocking wall

[Purpose of invention]

[Technical field to which the invention belongs and the prior art in that field]

The present invention relates to a dehydration combined washing machine equipped with an inner tank, that is, a rotary tank, which receives water together with laundry in a washing process and spins at high speed in a dewatering process to dehydrate the laundry by centrifugal force.

In recent years, in order to save the quantity of water used in the dehydration combined-use washing machine provided with such an inner tank, the rinsing process after completion | finish of a washing | cleaning process is provided by what is called a dehydration rinse. This dehydration rinsing supplies the laundry as if water is sprayed into the inner tank in a state in which the inner tank is stopped or rotated at a low speed, and the supply of water is stopped when the laundry is sufficiently filled with water. It is a method of rinsing repeatedly by rotating at high speed several times.

In such dehydration rinsing, in order to shorten the rinsing time, in order to ensure that the laundry contains sufficient water in a short time, the flow rate of the water supplied to the washing machine is better. This splashing phenomenon becomes remarkable and there is a problem of wetting the surroundings. In addition, in the dehydration rinsing process, it is very important to inject water so that it is directed only to the area where the laundry is located and at the same time, it is sprayed over the entire area of the laundry to obtain a water saving effect.

[Configuration and Function of Invention]

It is a first object of the present invention to provide a dehydration combined washing machine capable of increasing the water supply amount so as to shorten the watering time until the laundry is in a state containing water while suppressing the water splashing phenomenon.

The second object of the present invention is to inject water so that water can be sprayed into the laundry in the inner tank from the limited area in the dehydration rinsing process, and the water can be reduced as much as possible to reduce the amount of water wasted during pouring. In providing a washing machine.

The dehydration combined washing machine provided by the first aspect of the present invention for achieving this object includes a tubular outer tank supported by an elastic attachment mechanism in an outer box; A cylindrical inner tank disposed in the outer tank to accommodate water together with the laundry in the washing stroke to rotate the stirring body, and in the dehydration process to rotate at a high speed with the stirring body to dehydrate the laundry by centrifugal force; A ring-shaped outer tub cover disposed at the top opening of the outer tub and having an opening for putting laundry into and out of the center; And an inner cover supported by a ring-shaped outer tank cover to open and close a central opening of the outer tank cover, wherein the first concave portion 27 is formed on a ring-shaped upper surface at a rear portion of the outer tank cover. 63) and a water inlet consisting of second recesses (23, 64) adjacent to the first recesses at the rear of the inner tub, and the second recesses are formed deeper than the first recesses. Thereby, the first concave portion and the second concave portion are continuous in the bottom surface forming a staircase, the bottom surface of the second concave portion is formed a plurality of water injection holes in the circumferential direction around the outer periphery of the inner tank And the water inlet member is provided on the upper part of the outer box so as to supply water from above one of the first concave portion and the second concave portion.

According to the dehydration combined washing machine having such a configuration, for example, when water is supplied from the water inlet member connected to the tap water to the one of the first and the second recesses, the water is supplied from the water inlet to the laundry in the inner tank. Water is supplied. In this case, the water dropped as described above rapidly diffuses toward the other concave portion. As a result, the dropped water can be effectively suppressed from splashing badly due to the resistance to diffusion, and if the size and number of the water injection holes are properly selected, the amount of water can be increased while suppressing the water splashing phenomenon. Watering time until it becomes the state containing this water can be shortened. In addition, since a plurality of water injection holes are provided around the outer periphery of the inner tank and in a long section in the circumferential direction, the water can be poured into every corner of the laundry existing along the inner periphery and efficiently.

Preferred specific configurations according to the first aspect of the present invention are as follows. A first cover is provided around the opening of the first recess, and a second cover is provided around the opening of the second recess, and water is prevented from splashing by these covers.

The water injection hole is installed at the outer circumferential side of the inner tank and at the same time is long in the circumferential direction to concentrate the injected water on the laundry.

The bottom portion of the water injection portion is formed to be inclined to suppress reflection of water. The water injection hole is formed to protrude to the nozzle phenomenon downward to limit the water supply range. A portion adjacent to the second concave portion of the inner cover is formed with a dome portion protruding upward in a spherical shape, and a hole through which water is drained at the bottom of the outer circumference of the dome portion.

In addition, the inner circumference of the opening of the outer cover is provided with an elastic body in which the inner cover is pressed against the rib in the closed state, and an inclined surface is formed at the portion slidingly bonded to the elastic body of the rib to prevent vibration of the inner cover.

In the dewatering and washing machine according to the second aspect of the present invention, the water inlet member is disposed at a position for injecting water toward the first concave portion, and the water injection holes are arranged in a plurality of regions around the outer periphery of the inner tank and also in the circumferential direction. Rather, it is formed in a state in which a plurality of lines are arranged along a direction substantially parallel to the radial direction.

As described above, in the form where a plurality of water injection holes are arranged along a line substantially parallel to the radial line of the inner tank, the inner tank has a predetermined thickness from the inner circumference of the inner tank when the inner tank is rotated at low speed during the main water during the dewatering and rinsing process. It is possible for the entire area of the laundry to be distributed to pass under the water injection hole row. As a result, water can be sprayed to every corner of the laundry from a relatively limited area where the water injection hole row is formed, and water can be unnecessarily injected into the central part where the laundry is not distributed.

Preferred specific configurations according to the second aspect of the present invention are as follows.

In the first concave portion, a plurality of water draining holes arranged along the inner circumferential surface of the inner tank are formed to concentrate the drinking water on the laundry. Adjacent portions of the first recess and the second recess of the second recess have an arcuate extension at the outer edge, and the extension protrudes in the direction of the first recess to promote the diffusion of water. You may form this missing hole.

The water injection hole is an almost semi-circular hole in which the inner side of the inner cover has a straight line, and the portion adjacent to the straight line is formed as an inclined surface gradually descending toward the straight line. Have By this structure, the water injection direction from the water injection hole is directed to the inner peripheral surface direction of the inner tank.

A predetermined portion of the first recess is provided with a wall to prevent excessive diffusion of water and detergent.

EXAMPLE

Hereinafter, a first embodiment according to the present invention will be described with reference to FIGS. 1 and 2.

First, FIG. 2 shows the structure of the whole washing machine for dehydration. The outer tub 12 is supported by the elastic attachment mechanism 13 (only a part of it) in the outer box 11, and the inner tub 12 is installed inside. The tank 14 is provided. In addition, in the inner tank 14, the stirring body 15 is provided in the bottom part, and the drive mechanism 17 mainly having the motor 16 is provided in the lower outer tank 12, and this drive is provided. In the washing and rinsing by the mechanism 17, the inner tank 14 is restrained to rotate the stirring body 15, and the inner tank 14 is decoupled from the stirring body 15 in the dehydration rinsing process and the rinsing process or the dehydration process. It is intended to rotate together. The vowel rinse here refers to a rinse which rotates the stirring body 15 in a full water condition in the inner tank 14.

In detail, the inner tub 14 has a dehydration hole 19 only in the upper portion on which the balancing ring 18 is mounted, and from the dehydration hole 19 through the gap between the balance ring 18 and the upper inner circumferential surface thereof. It is intended to be dehydrated. In addition, a flat ring-shaped outer tub cover 20 is formed at the upper portion of the outer tub 12 to form an opening 20a for putting in and taking out the laundry. The opening 20a is covered by the inner cover 21, but is supported so as to be rotatable up and down about the support shaft 22 installed at the rear portion of the inner cover 21, and is located at the circumference of the outer cover 20. 20a is opened and closed by an inner cover 21. Therefore, in the state which closed the inner cover 21, this inner cover 21 covers the upper part of the inner tank 14, and the outer tank cover 20 is located around it.

Thus, the water injection part 23 (2nd recessed part) shown in FIG. 1 is formed in the center of the edge back of the inner cover 21. As shown in FIG. The water injection portion 23 is formed in a rectangular concave shape with an inclined surface gradually lowered as the bottom portion moves from the front to the back, and at the innermost portion of the inner tank 14 of the water injection portion 23 at the lowest portion thereof. A large number of the mouth holes 24 are formed. Moreover, the step part 25 is formed in the three sides of the water injection part 23 on the left and right sides of the inclined surface, and the front side which is a center side of an inner cover, and it engages in two front and back places on the both ends 25 of this side, respectively. The protrusions 26 are formed. On the back side of the outer tank cover 20, a drip tray 27 (first concave) having a bottom portion higher than the bottom portion of the water injection portion 23 has the same width as the water injection portion 23, and these The water injection part 23 and the water receiving part 27 are communicated between the bottom part through the step part 23a.

In the bottom part of this drip-cover part 27, the engagement hole 28 is formed in one place in front of each of right and left sides, and one place in the back center.

In addition, a water injection part cover 29 (second cover) and a drip cover part 30 (first cover) are installed in each of the water injection part 23 and the water receiving part 27 upward. The sub-cover 29 has a substantially U-shape covering three directions of the front portion and both sides of the upper portion of the water injection portion 23, and the portion 29a covering the front portion of the water injection portion 23 covers the both sides 29b. And 29c), it is formed in an inclined surface shape which is formed to be wider and is gradually raised toward the center. In addition, engagement holes 31 corresponding to the engagement projections 26 are formed in both side surfaces of the water injection portion cover 29.

Meanwhile, the drip tray cover 30 has an approximately U shape covering three directions of the rear portion and both sides of the drip tray 27, and each of the portions 30a, 30b, and 30c has both sides of the drip cover 29. 29a, 29c), and is formed to have substantially the same width as the rear edge width. At the inner circumferential edge of the drip tray cover 30, horizontal ribs 32 for water return are formed, and at the outer circumferential edges, ribs for installation 33 formed wider and vertically than that are formed, respectively. In addition, an engaging ring 34 corresponding to the engaging hole 28 is formed at the bottom edge of the rib 33 for installation of the drip tray cover 30.

The water injection portion cover 29 configured as described above is engaged with the engagement projections 31 by the engagement holes 31, and the outer peripheral edge portion is placed on the end portion 25 so as to be placed on the upper portion of the water injection portion 23. Mounting is fixed. On the other hand, the drip tray cover 30 is fixed to the upper portion of the drip tray 27 by engaging the engaging ring 34 to the engaging hole 28.

In addition, the left and right both sides of the inner cover 21, which are in contact with the water injection portion 23, are formed with a dome portion 35 so as to protrude a bottom surface of the semi-circular concave portion upward in a spherical shape. An operating handle 36 for opening the cover is provided. In addition, an upper cover 37 located above the inner cover 21 and the outer tank cover 20 is installed at the upper opening of the outer box 1, and an outer cover ( 38) is installed. Further, a water supply device 39 is provided which includes a water supply valve (not shown) which is located above the drip tray 27 and feeds water toward the water inlet 23 at the front lower side.

In the case of the above-described configuration, during the dehydration rinsing process, the inner tank 14 is rotated at a low speed while injecting water into the inner tank 14 so that the laundry sufficiently contains water. The water is rotated at a high speed and dewatering the laundry by the centrifugal force is repeated a predetermined number of times. In this dewatering rinsing process, water supplied from a water inlet such as a faucet (not shown) through the water supply device 39 falls onto the water inlet 23 of the inner cover 21, and water is injected. At the same time, the water inlet 23 widens on the bottom surface and diffuses toward the drip tray 27 of the outer tub cover 20. In this way, the diffusion of the water is sufficiently diffused from one concave portion to the other concave portion, so that a strong collision to the peripheral surface of the water injection portion 23 is alleviated, and water splashing by the collision can be avoided.

In addition, since the drip tray 27 receives the water protruding from the water injection portion 23 when the inner cover 21 is opened in the main water, the water can be alleviated. It can also be avoided to flow down to the floor beyond the periphery.

In the case of the above-described configuration, since the drip tray cover 30 is mounted on the drip tray 27, the drip cover covers that the water contained in the drip tray 27 splashes and flows over the outer tub cover 20. By 30, it can prevent more effectively.

In addition, since the water injection portion cover 29 is mounted on the upper portion of the water injection portion 23, the water injection portion cover 29 can also prevent the water received from the water injection portion 23 from splashing more effectively. Can be.

Furthermore, since the water injection portion cover 29 is shaped to cover three directions of the front portion and the both sides of the center of the inner cover 21 on the upper portion of the water injection portion 23, the water received from the water injection portion 23 This splashing can be prevented more effectively in those three directions.

In particular, the portion 29a covering the front portion of the upper portion of the water injection portion 23 of the water injection portion cover 29 is formed wider than the portions 29b and 29c covering both sides, so that the water contained in the water injection portion 23 Splashing corresponds to the most at the front, and the water can be most effectively prevented from splashing.

On the other hand, the arrangement of the water injection holes 24 formed in the water injection portion 23 is provided over a long range along the circumferential direction of the edge of the inner tank 14, whereby laundry is rotated when the inner tank 14 is rotated. Due to the centrifugal force, water can be effectively injected into the laundry which is scattered around the inside of the inner tub 14. That is, the washing water can be sprayed every corner of the laundry existing along the inner circumferential surface of the inner tub 14 by the arrangement of the water injection holes, and if the size and number of the water injection holes are properly selected, a large amount of water can be splashed without splashing. Since the water can be poured, the time for filling can be shortened. In addition, the water contained in the drip tray 27 and tends to remain can be dropped into the inner tub 14 from the fitting hole 28 for fastening and engaging the catching hook 34 under the drip cover 30. It can prevent water problems.

In the water injection portion 23, since the engaging projection 26 fixed by engaging the water injection portion cover 29 protrudes toward the water injection portion 23, it is difficult to catch laundry and prevent damage to the laundry. can do.

3 to 7 show a second embodiment of the present invention, in which the bottom portion is lowered toward the rear portion than the front portion in place of the water injection portion 23 in the first embodiment on the inner cover 21. And a water injection portion 40 forming a V-shaped inclined surface shape in which the central portion between the left and right is lowered, and the water injection hole 41 protrudes downward in the cylindrical shape in the water injection portion 40. The cylindrical part 42 is formed in the shape of a nozzle, and the dome part 35 on both sides of the water injection part 40 is formed with the hole 43 in which several water falls out in the bottom part of the outer periphery.

In this case, the inclined surface of the water injection portion 40 allows water to flow along the inclined surface as indicated by the arrow in FIG. 6, and the reflection in the vertical upward direction can be reduced, so that water splashing is further reduced. can do. This effect can also be similarly obtained by the water injection portion 23 of the first embodiment in which the bottom portion is formed in the shape of an inclined surface having a lower rear side. The water injection hole 41 is formed in the shape of a nozzle so as to protrude downward, so that water can be pumped in a straight line without diffusing water, as indicated by arrows in FIG. 7. Therefore, the water supply range is limited to the laundry in the inner tank 14. can do. The water protruding from the water injection portion 40 is discharged from the water injection portion 40 by the dome portions 35 on both sides of the water injection portion 40 and the holes 43 through which the water is formed. The water can be guided to the portion 43 is drained from the inner tank 43 through the hole 43, the water draining can be dropped into the inner tank 14 so that the problem of residual water can be prevented from occurring here. have.

8 to 10 show a third embodiment of the present invention, for example, semicircular recesses 44 having four bottoms in the inner edge portion of the opening 20a of the outer jaw cover 20. A semicircular recess in which each half of the elastic body 45 made of, for example, a rubber is formed in a short cylindrical shape, and the inner lid 21 is located at the rib 46 at the outer edge thereof. 47 is formed, and this shows that the inner cover 21 is pressed against the other half exposed in the recess 44 of the elastic body 45 in the closed state. In this case, the inclined surface 48 is formed so that the inner edge surface of the concave portion 47 has a wide front, and the elastic body 45 is elastically deformed in the concave portion 47 by slidingly bonding it to the elastic body 45. I'm going to let you.

Therefore, the vibration of the inner cover 21 can be suppressed by the elastic body 45, and the inner cover 21 can prevent the sound generated by the vibration and at the same time by the vibration of the inner cover 21 It is possible to reduce the splashing of the water, and since the elastic body 45 is elastically deformed on the inclined surface 48 of the rib 46 of the inner cover 21, the elastic body 45 can be smoothly deformed, and The press bonding to the lid 21 can be performed smoothly.

11 and 12 show a fourth embodiment of the present invention, in which, for example, three of the elastic bodies 45 of the third embodiment are disposed at the inner edge portion of the opening 20a of the outer tub cover 20. An elastic body 49 formed of integrally formed protrusions is provided, and the rib 50 of the outer edge portion of the inner cover 21 is slidably joined by the inclined surface 51 of the outer surface thereof so as to be loosely joined. In this case, the same effects as those of the third embodiment can be obtained.

Next, a fifth embodiment of the present invention will be described with reference to FIGS. 13 to 19. FIG.

A rectangular water injection portion 63 (first recessed portion) shown in FIGS. 13, 15, and 16 is formed at the rear center of the outer tank cover 20, and an inner cover 61 adjacent thereto is formed. ), A drip tray 64 (second recessed portion) having a semicircular recessed portion deeper than the water injection portion 63 is formed. The inner cover 61 is supported by the outer cover 20 so as to be rotatable by the support shaft 62.

Near the center of the front edge of the bottom of the water injection portion 63 adjacent to the water reservoir 64, an extension 65 having an arc shape of its outer edge 65a is directed toward the water reservoir 64. Formed. The extension portion 65 is provided with three water-draining holes 66, and is formed in an arrangement such that one of the three water-dripping holes is located behind the left and right ones. By rearranging the center of two of the eight water-dropping holes 67 having a diameter larger than the hole 66, the water dropping hole 66 is located behind the other six, behind An arc-shaped wall 68 disposed along the inner circumferential surface of 14 to block water in a portion adjacent to the drip tray 64 through a water injection region, which is a region in which these water drain holes 66 and 67 are formed. I install it upright.

On the other hand, a plurality of water injection holes 69 are formed in almost the entire area of the bottom of the drip tray 64. In this case, the water injection holes 69 are arranged in six rows before and after the rows close to the water injection portion 63, in turn, to the rows far away from each other. Therefore, it can be said that each row is a form along the straight line parallel to the radial line of the inner tub 14. Each one of the water injection holes 69 is an almost semi-circular hole in which the central portion of the inner cover 61 forms a straight line as shown in FIGS. 17 to 19, and as shown in FIG. It has the inclined surface 70 gradually descending toward, and it is formed so that it may have the rib 71 in the lower edge of the arc vicinity.

In addition, the inner lid 61 has a wall portion 72 at its outer edge, and has a concave portion 74 in which the handle 73 is located in the front portion, and has a dome shape as a whole. In addition, as shown in the second diagram, the upper cover 37 is attached to the upper end of the outer box 11 above the inner cover 61 and the outer tank cover 20, and the outer cover 38 is attached to the upper cover 37. ) And at the same time located above and behind the water injection section 63, toward the detergent storage section 77 and the detergent storage section 77 and the water injection section 63, especially the extension 65 thereof. A water supply valve 78 which is a water supply member for injecting water is provided.

In the above configuration, at the beginning of the washing process, water for washing is discharged at the same time as the detergent from the water supply valve 78 through the detergent storage unit 77, and the water injection unit 63 receives the water injection unit 63 from the extension unit 65. A part is diffused in the arc-shaped outer edge 65a of the extension part 65, falling into the water drain hole 66 and 67. As shown in FIG. The diffused water and detergent are injected into the water tank through the drip tray 64 as if showered in the inner tank 14. In addition, in the rinsing process, only water is injected into the inner tank 14 through the above process.

As described above, when the plurality of water injection holes 69 are arranged along a line substantially parallel to the radial line of the inner tub 14, when the inner tub 14 is rotated at low speed during the dehydration rinsing process, the inner tub The entire area of the laundry having a predetermined thickness distributed in the center direction at the inner edge of (14) can pass through the bottom of the water injection hole 69 row. As a result, in the area of the relatively limited area of the area where the water injection hole row is formed, water can be sprayed to every corner of the laundry, and it is possible to avoid unnecessary watering in the central part where the laundry is not distributed. In addition, the water dropped on the extension 65 of the water injection unit 63 in the detergent storage unit 77 is rapidly diffused toward the water receiving unit 63 as well as the drip tray 64 (second concave). This effectively prevents water from splashing in the distant direction.

In addition, since the water injection hole 69 is formed in almost the entire area of the drip tray 64, water can be injected in a wider range. Also, if the size of the water injection holes is appropriately selected, the number of the water injection holes is large enough so that the water does not splash. Since a large amount of water can be poured in, it can shorten the pouring time and increase the efficiency of rinsing.

On the other hand, since the hole 67, through which the water of the water injection portion 63 is drained, is disposed along the inner edge surface of the inner tub 14, water can be poured even to the laundry located close to the inner edge of the inner tub 14, This also increases the efficiency of the rinsing.

In addition, since the outer edge of the water injection portion 63 and the water receiving portion 64 has an arcuate extension portion 65a, water can be diffused in the extension portion 65a. Water can be uniformly injected from each water injection hole 69, and at the same time, the detergent sprayed on the drip tray 64 can flow out together with the water, so that detergent residues can be prevented from occurring.

In addition, since the extension portion 65a of the water injection portion 63 also has a hole 66 through which water flows out, the water pressure is transferred to the hole 66 through which the water pressure received from the water injection portion 63 is discharged. You can mitigate, reduce splashing, and never wet the bottom.

And since the water injection hole 69 has the inclined surface 70 and the rib 71 of the shape which goes down gradually, water is also injected toward the inner edge surface of the inner tub 14, as shown by arrow B in FIG. In this way, water can be effectively injected into the laundry located close to the inner edge surface of the inner tub 14 by the rotary centrifugal force of the inner tub 14 during the dehydration rinsing.

Moreover, since the water injection portion 63 has a wall 68 to block water, the spraying of the detergent at the water injection portion 63 can be stopped up to the wall 68 to block the water, and the diffusion similarly prevents the water. The stopping water to the blocking wall 68 allows the detergent to flow without remaining.

[Effects of the Invention]

As described above, according to the present invention, the amount of water supplied can be increased so as to shorten the watering time until the laundry is in the state of containing water while suppressing the water splashing, and the area of limited area in the dehydration rinsing process. Water can be injected into the laundry in the inner tank from the water so that water can be sprayed in every corner, and the amount of water wasted during pouring can be reduced as much as possible.

Claims (19)

A cylindrical outer tub supported by an elastic attachment mechanism in the outer box; A cylindrical inner tank disposed in the outer tank to accommodate water together with the laundry in the washing stroke to rotate the stirring body, and in the dehydration process to rotate at a high speed with the stirring body to dehydrate the laundry by centrifugal force; A ring-shaped outer tub cover disposed at the upper opening of the outer tub and having an opening for putting laundry into and out of the center; And an inner cover supported by a ring-shaped outer tank cover to open and close a central opening of the outer tank cover, wherein the first concave portion 27 is formed on a ring-shaped upper surface at a rear portion of the outer tank cover. 63) and a water inlet consisting of second recesses (23, 64) adjacent to the first recesses at the rear of the inner tub, and the second recesses are formed deeper than the first recesses. Thereby, the first concave portion and the second concave portion are continuous in the bottom surface forming a staircase, the bottom surface of the second concave portion is formed a plurality of water injection holes in the circumferential direction around the outer periphery of the inner tank And a water supply port member is provided on the upper portion of the outer box so as to supply water from above one of the first recesses and the second recesses. The washing machine as set forth in claim 1, wherein said first recessed portion has a first cover covering a predetermined portion around the opening. The washing machine according to claim 1, wherein the second recess has a second cover covering a predetermined portion around the opening. The dehydration combined washing machine according to claim 3, wherein the second cover has a shape covering three sides of the inner cover center side portion and both side portions of the second concave portion. 5. The washing machine according to claim 4, wherein the second cover has a width wider than a portion covering the inner cover center portion of the second concave portion. 3. The washing machine according to claim 2, wherein the first cover has a ring formed at its lower portion and has a hole engaged with the ring at the bottom of the first concave portion. 4. The washing machine according to claim 3, wherein the second cover is configured to fix the cover by engaging with the inner side of the second recess. The dehydration combined washing machine according to claim 1, wherein the bottom portion of the second concave portion is formed in an inclined surface shape. The washing machine according to claim 1, wherein the water injection hole is formed to protrude downward in the shape of a nozzle. The dewatering method according to claim 1, wherein the inner cover has a dome portion in which a region adjacent to the second concave portion protrudes in a spherical shape upward, and a water draining hole is formed at the bottom of the outer edge of the dome portion. Combined washing machine. The washing machine according to claim 1, wherein the outer tub cover is provided with an elastic body that is pressed against the inner lid in a closed state. The washing machine according to claim 11, wherein the inner cover has a rib having an inclined surface slidingly bonded to the elastic body. According to claim 1, wherein the water inlet member is disposed in a position to inject water toward the first concave portion, the water injection hole is formed in a plurality of lines in the direction along the line parallel to the radial direction of the inner tank. Dehydration combined use washing machine made with. The dehydrating combined washing machine according to claim 13, wherein the water injection hole is formed in almost the entire area of the bottom of the second concave portion. The washing machine according to claim 13, wherein a plurality of water draining holes are arranged along the inner edge surface of the inner tank in the first concave portion. 14. The washing machine as set forth in claim 13, wherein said first recessed portion has an extended portion whose outer edge which extends toward the second recessed portion in the second recessed portion and the adjacent portion is an arc shape. The washing machine according to claim 16, wherein the extension part has a hole through which water is drained. The water injection hole is a substantially semi-circular hole in which the portion of the inner cover center side forms a straight line, and the portion adjacent to the straight line portion is formed in an inclined surface that gradually descends toward the straight line region. A dehydration combined use washing machine, characterized in that ribs are formed on the lower edge of the portion near the arc. The washing machine according to claim 13, wherein the first concave portion has a wall blocking water in a portion adjacent to the second concave portion through a region where water is injected from the water supply member.