WO2016119595A1 - Washing machine - Google Patents

Abstract

Provided is a washing machine capable of favorably collecting lint, etc. The washing machine is fully automatic and comprises: a washing and draining cylinder (22) receiving an item to be washed; an impeller (24) freely and rotatably configured at a bottom portion of the washing and draining cylinder (22); a circulating water channel (26) formed at a side portion of the washing and draining cylinder (22) and allowing water pushed by a rotation of the impeller (24) to flow from a bottom upwards; and a filter unit (28) installed at the circulating water channel (26), sucking, via a water inlet (122), the water returned from the circulating water channel (26) to the washing and draining cylinder (22), and enabling the water to flow through the filter unit (28), thereby collecting lint, etc. in the water flowing through the filter unit. The washing and draining cylinder (22) comprises a cylinder portion (22a) and a bottom portion (22b) installed at a lower portion of the cylinder portion (22a). And the filter unit (28) is located at a lower portion of the washing and draining cylinder (22), vertically spreading between the cylinder portion (22a) and the bottom portion (22b).

Description

washing machine Technical field

The present invention relates to a washing machine.

Background technique

Conventionally, in the fully automatic washing machine, as one of the structures for collecting the lint and dust which are discharged from the laundry at the time of washing, the following thread collecting structure can be employed.

That is, a circulation water passage is formed in the side surface portion of the washing and dewatering tub, and a filter unit is detachably provided in the circulation water passage. The circulating water path is connected to the side of the pulsator. A blade is provided on the back surface of the pulsator, and water that is pushed out in the outer circumferential direction by the blade on the back side when the pulsator rotates is introduced into the circulation water path. The water introduced into the circulating water path rises in the circulating water path and flows through the filter unit to return to the washing and dewatering tank. When water passes through the filter unit, the strands and the like contained in the water are collected by the filter unit (see Patent Document 1).

Prior art literature

Patent literature

Patent Document 1: Japanese Laid-Open Patent Publication No. 2013-141553

Problems to be solved by the invention

In the above-described thread collecting structure, due to the operation mode, the load amount, and the like, there is a hidden danger that when the rotation speed of the pulsator becomes low or the water level of the washing and dewatering tank becomes low, the water can be pumped by the rotation of the pulsator. The height, that is, the water level difference becomes low, and the amount of water passing through the filter unit is reduced, and collection of wire scraps or the like cannot be performed satisfactorily.

Summary of the invention

Therefore, in the case of employing the above-described yarn end filter collecting structure, it is desirable to collect the wire scraps and the like satisfactorily even when the water level difference is low.

Solution to solve the problem

A washing machine according to a main embodiment of the present invention includes: a washing and dewatering tub for storing laundry; a pulsator that is rotatably disposed at a bottom of the washing and dewatering tub; and a circulation water passage formed at a side portion of the washing and dewatering tub for passage The water sent by the rotation of the pulsator flows from the bottom to the top; and the filter unit is installed in the circulating water path, and is sucked from the flow inlet and returned from the circulating water path to the washing and dewatering tank. The water passes through it, and collects the strands and the like contained in the passing water. Here, the washing and dewatering tub includes a tub portion and a bottom portion mounted to a lower portion of the tub portion, and the filter unit is located at the washing and dehydrating manner in a manner spanning between the tub portion and the bottom portion The lower part of the bucket.

According to the above configuration, the amount of circulating water that can be sent to the filter unit can be increased, and more strands and the like can be collected. In addition, it can be said that the water level difference required to feed water into the filter unit can be suppressed low. Thereby, even when the rotation speed of the pulsator is low and the water level in the washing and dewatering tank is low, the water can be sufficiently sent to the filter unit, and the collection of the swarf or the like can be satisfactorily performed.

In the washing machine of the present embodiment, the filter unit may have a box shape having a dimension in the front-rear direction that is smaller than the size in the up, down, left, and right directions, and the inflow port is formed on the rear surface and allows the flow of the sucked water to flow out. The outlet is formed on the front surface, and a filter for allowing water to pass through and retaining the strands or the like is disposed inside the outlet.

According to the above configuration, the filter unit can be formed into a box shape that is flat in the front-rear direction, and the amount of protrusion of the filter unit to the inside of the washing and dewatering tub can be suppressed. Thus, even if the filter unit is disposed in the lower portion of the washing and dewatering tub, there is no fear of disturbing the pulsator.

In the washing machine of the present embodiment, the filter unit may be configured to be inclined so as to be tilted toward the side surface side of the washing and dewatering tub in a state of being attached to the circulating water passage.

According to the above configuration, when the height position of the inflow port is set to be the same as the case where the filter unit is mounted in the vertical state in the circulating water passage, the size of the filter unit in the vertical direction can be increased, and the corresponding The enlarged portion increases the storage volume of the wire and the like.

In the washing machine of the present embodiment, a configuration may be adopted in which a swirling body that converts a water flow that is going to the upper side of the inflow port into a water flow toward the inflow port is provided in the circulating water passage.

According to the above configuration, the water flowing through the circulating water passage can be smoothly guided to the inflow port.

In the washing machine of the present embodiment, a configuration may be adopted on the upstream side of the inflow port of the circulating water passage, at least in the vicinity of the inflow port, from the side of the washing and dewatering tub toward the filtering The width of the water path in the direction of the unit gradually becomes smaller as it approaches the inlet.

With the above configuration, the flow velocity of the water toward the inflow port can be increased, and the water and the wire scrap can be strongly flowed into the inflow port.

In the case where the filter unit is formed into a box-like structure, the filter unit may further adopt a structure including a first member formed by the outflow port and a second member formed by the inflow port. . In this case, the first member and the second member are separable in the front-rear direction The second member is provided with a dome-shaped projection that protrudes rearward at a position above the inlet port.

According to the above configuration, in a state where the filter unit is attached to the circulating water passage, the water flow in the circulating water passage can be changed by the protruding body, and the water can be smoothly guided to the inflow port. Further, when the filter unit is detached from the circulation water path and the wire scrap or the like is recovered, the first member and the second member can be easily separated by using the protrusion as a handle.

Effect of the invention

According to the present invention, it is possible to provide a washing machine capable of collecting fines and the like well.

The effects and significance of the present invention will be further clarified by the description of the embodiments shown below. However, the following embodiments are merely illustrative of the embodiments of the present invention, and the present invention is not limited by the following embodiments.

DRAWINGS

FIG. 1 is a side cross-sectional view showing a configuration of a fully automatic washing machine according to an embodiment.

FIG. 2 is an enlarged cross-sectional view showing a main part of a peripheral portion of a circulation water passage to which a filter unit is attached according to an embodiment.

3 is a view showing a configuration of a filter unit according to an embodiment.

4 is a view showing a configuration of a filter unit according to an embodiment.

FIG. 5 is a perspective view showing a configuration of a water passage forming member according to an embodiment.

FIG. 6 is an enlarged cross-sectional view showing a main part of a peripheral portion of a circulation water passage to which a filter unit is attached according to Modification 1. FIG.

FIG. 7 is an enlarged cross-sectional view showing a main part of a peripheral portion of a circulation water passage to which a filter unit is attached according to Modification 2. FIG.

Description of the reference numerals

22: washing dewatering bucket; 22a: barrel body; 22b: bottom; 24: pulsator; 26: circulating waterway; 26A: circulating waterway; 27: waterway forming member; 27A: waterway forming member; 28: filter unit; : filter unit; 28B: filter unit; 110: front case (first member); 112: outflow port; 113: filter; 120: rear case (second member); 122: inflow port; 123: protruding piece (steering body, protrusion); 206: steering plate (steering body).

detailed description

Hereinafter, a fully automatic washing machine as an embodiment of the washing machine of the present invention will be described with reference to the drawings.

FIG. 1 is a side cross-sectional view showing the structure of a fully automatic washing machine 1.

The fully automatic washing machine 1 is provided with a casing 10 that constitutes an appearance. The casing 10 includes a square tubular body portion 11 having an upper and lower surface open, an upper panel 12 covering the upper surface of the body portion 11, and a leg 13 supporting the body portion 11. On the upper panel 12, an inlet 14 for washing is formed. The inlet 14 is covered by a freely open upper cover 15.

In the casing 10, the outer tub 20 is elastically suspended and supported by four booms 21 having anti-vibration means. Inside the outer tub 20, a washing and dewatering tub 22 is disposed.

The washing and dewatering tub 22 is composed of a cylindrical tub portion 22a and a shallow bowl-shaped bottom portion 22b. The bottom portion 22b is attached to the lower portion of the tub portion 22a by a fixing method such as screwing. On the inner circumferential surface of the washing and dewatering tub 22, a plurality of dehydrating holes 22c are formed. Further, a plurality of water passing holes 22d are formed in the bottom surface of the washing and dewatering tub 22. Further, a balance ring 23 is provided on the upper portion of the washing and dewatering tub 22.

At the bottom of the outer tub 20, a pulsator 24 is disposed. On the surface of the pulsator 24, a plurality of blades 24a radially extending from the center of the surface are formed. Further, on the back surface of the pulsator 24, a plurality of pumping blades 24b radially extending from the center of the back surface are formed. These pumping blades 24b are disposed in a pump chamber 25 formed between the back surface of the pulsator 24 and the bottom surface of the washing and dewatering tub 22.

The circulation water passage 26 extending in the up-and-down direction along the inner circumferential surface of the washing and dewatering tub 22 is formed by the water passage forming member 27 and the tub portion 22a and the bottom portion 22b of the washing and dewatering tub 22. The lower end portion of the circulating water passage 26 is connected to the pump chamber 25. The filter unit 28 is detachably attached to the circulating water path 26, that is, the water path forming member 27 constituting the circulating water path 26. The filter unit 28 is located at a lower portion of the washing and dewatering tub 22 in a manner spanning between the tub portion 22a and the bottom portion 22b. Further, the filter unit 28 is inclined so as to be tilted toward the inner peripheral surface side of the washing and dewatering tub 22.

At the outer bottom of the outer tub 20, a drive unit 30 that generates torque for driving the washing and dewatering tub 22 and the pulsator 24 is disposed. The drive unit 30 includes a drive motor 31 and a transmission mechanism portion 32. The transmission mechanism portion 32 has a clutch mechanism, and by the switching operation by the clutch mechanism, the torque of the drive motor 31 is transmitted only to the pulsator 24 during the washing process and the rinsing process to rotate only the pulsator 24 during the dehydration process. The torque of the drive motor 31 is transmitted to the pulsator 24 and the washing and dewatering tub 22, so that the pulsator 24 and the washing and dewatering tub 22 are integrally rotated. Further, the transmission mechanism portion 32 has a speed reduction mechanism. During the washing process and drifting During the washing process, the pulsator 24 rotates at a rotation speed at which the rotation speed of the drive motor 31 is reduced in accordance with the reduction ratio of the speed reduction mechanism.

At the outer bottom of the outer tub 20, a drain port portion 20a is formed. A drain valve 40 is provided in the drain port portion 20a. The drain valve 40 is connected to the drain hose 41. When the drain valve 40 is opened, the water stored in the washing and dewatering tub 22 and the tub 20 is discharged to the outside of the machine through the drain hose 41.

At the rear of the upper panel 12, a water supply unit 50 for supplying tap water into the washing and dewatering tub 22 is disposed. The water supply unit 50 has a water supply valve 51. The water supply valve 51 is connected to the faucet. When the water supply valve 51 is opened, tap water is introduced from the faucet into the water supply unit 50. The introduced tap water flows from the water injection port 52 of the water supply unit 50 into the washing and dewatering tub 22.

The fully automatic washing machine 1 performs a washing operation in various operation modes. The washing operation includes a washing process, an intermediate dehydration process, a rinsing process, and a final dehydration process.

In the washing process and the rinsing process, the pulsator 24 is rotated in the right direction and the left direction in a state where water is stored in the washing and dewatering tub 22. A flow of water is generated in the washing and dewatering tub 22 by the rotation of the pulsator 24. During the washing process, the laundry is washed by the generated water stream and the detergent contained in the water. During the rinsing process, the laundry is rinsed by the resulting water stream.

In the intermediate dehydration process and the final dehydration process, the washing and dewatering tub 22 and the pulsator 24 are integrally rotated at a high speed. The laundry is dehydrated by the action of centrifugal force generated by washing the dewatering tub 22.

The fully automatic washing machine 1 of the present embodiment is characterized by a thread collecting structure composed of a circulating water passage 26 and a filter unit 28. Hereinafter, the yarn collecting structure will be described in detail.

FIG. 2 is an enlarged cross-sectional view showing a main portion of a peripheral portion of the circulation water passage 26 to which the filter unit 28 is attached. 3 and 4 are views showing the structure of the filter unit 28. 3(a) is a front perspective view of the filter unit 28, and FIG. 3(b) is a rear perspective view of the filter unit 28. 4(a) is a side cross-sectional view of the filter unit 28 in a closed state, and FIG. 4(b) is a side cross-sectional view of the filter unit 28 in an open state. FIG. 5 is a perspective view showing the structure of the water passage forming member 27.

The filter unit 28 has a box shape in which the dimension in the front-rear direction is smaller than the size in the up, down, left, and right directions, and is flat in the front-rear direction. The filter unit 28 includes a front case 110 that is open to the rear and a rear case 120 that is open to the front. The front case 110 corresponds to the first member of the present invention, and the rear case 120 corresponds to the second member of the present invention.

The front case 110 and the rear case 120 are overlapped in the front-rear direction so that the case 120 is fitted inside the front case 110, whereby the accommodating portion 130 for storing the swarf or the like is formed inside the filter unit 28. The shaft portion 121 formed on both sides of the lower portion of the rear case 120 is rotatably supported at a lower portion formed in the front case 110 Axle holes 111 on both sides. As shown in FIG. 4(b), when the rear case 120 is rotated rearward about the shaft portion 121, the front case 110 and the rear case 120 are opened.

On the front surface of the front case 110, an outflow port 112 is formed. The outflow port 112 is composed of a plurality of outflow holes 112a arranged in the longitudinal and lateral directions. A filter 113 composed of a mesh sheet is attached to the inside of the outflow port 112, and each of the outflow holes 112a is covered by a filter 113.

An engaging claw portion 114 is formed at an upper end portion of the front case 110. The engaging claw portion 114 includes a main body portion 114a that can be bent downward and a claw portion 114b that protrudes upward from the main body portion 114a. At a lower end portion of the front case 110, a mounting rib 115 that protrudes downward in the left-right direction is formed.

On the rear surface of the rear case 120, an inflow port 122 formed in a horizontally long rectangular shape is formed in the upper portion. At the upper edge portion of the inflow port 122, a dome-shaped protruding piece 123 is formed. The protruding piece 123 has a width substantially the same as the lateral width of the inflow port 122, and protrudes rearward than the side surface of the front case 110. The protruding piece 123 corresponds to the steering body and the protruding body of the present invention.

The water passage forming member 27 is formed with a mounting opening portion 201 that is largely opened in a shape corresponding to the filter unit 28. The mounting opening portion 201 is formed to be slightly inclined, slightly upward. The peripheral portion 202 of the mounting mouth portion 201 is slightly recessed more than its circumference. An engaging piece 203 that slightly protrudes into the mounting opening 201 is formed in an upper portion of the peripheral portion 202. In the lower portion of the peripheral portion 202, a rib interface 204 corresponding to the mounting rib 115 of the front case 110 is formed.

An arc-shaped groove portion 205 is formed at a lower end portion of the water passage forming member 27. When the water passage forming member 27 is attached to the washing and dewatering tub 22, the groove portion 205 constitutes a part of an annular groove portion (not shown) formed in the bottom portion 22b of the washing and dewatering tub 22. As shown in FIG. 2, the annular rib 24c formed on the outer periphery of the pulsator 24 is inserted into the annular groove portion including the groove portion 205.

As shown in FIG. 2, the filter unit 28 is attached to the mounting opening portion 201 of the water passage forming member 27. As shown in FIG. 3(b), the top end portion of the front case 110 protrudes outward from the upper portion and the both side portions, and the protruding portion is fitted into the peripheral edge portion 202 of the mounting opening portion 201, so that the filter unit 28 is provided. It is fixed in such a way that it does not move up, down, left, and right. Further, by engaging the claw portion 114b of the engaging claw portion 114 with the back side of the engaging piece 203 and fitting the mounting rib 115 into the rib engagement port 204, the filter unit 28 is fixed so as not to move forward.

Here, when the filter unit 28 is mounted to the mounting opening 201, the user first inserts the mounting rib 115 of the lower end of the filter unit 28 into the rib bearing interface 204. Next, the user bends the engaging claw portion 114 downward so that the claw portion 114b is lower than the engaging piece 203, and the upper portion of the filter unit 28 is rearward. mobile. Then, when the filter unit 28 is completely attached to the mounting opening 201 and the claw portion 114b reaches the back side of the engaging piece 203, the user releases the bending of the engaging claw portion 114 to engage the claw portion 114b with the engaging piece 203.

In a state where the filter unit 28 is attached to the water passage forming member 27, that is, the circulating water passage 26, the tip end of the protruding piece 123 of the filter unit 28 is close to the inner circumferential surface of the washing and dewatering tub 22 constituting the rear surface of the circulating water passage 26. Further, on the upstream side in the circulation water path 26 from the inflow port 122 of the filter unit 28, the width W of the circulation water path 26 defined by the rear surface of the rear case 120 and the inner circumferential surface of the washing and dewatering tub 22 is in the front-rear direction The area in the vicinity of the inflow port 122 is larger than the area on the upper side of the gathered portion 22e of the tub portion 22a of the washing and dewatering tub 22, so as to be gradually smaller as it approaches the inflow port 122.

Next, the collection operation of the lint or the like of the filter unit 28 will be described with reference to FIGS. 1 and 2 .

During the washing process or the rinsing process, when the pulsator 24 rotates, water between the washing dewatering tub 22 and the outer tub 20 is sucked into the pump chamber 25 through the water passing hole 22d by the pumping action by the pumping blade 24b. , launched in the direction of the outer circumference. The pushed water is introduced into the circulating water passage 26, rises in the circulating water passage 26, and flows into the accommodating portion 130 of the filter unit 28 through the inflow port 122. At this time, the lint or the like contained in the water also flows into the accommodating portion 130.

The protruding piece 123 protrudes above the inflow port 122, and the water flowing in the circulating water path 26 just above the inflow port 122 passes through the protruding piece 123, and is converted into a water flow toward the inflow port 122. Thereby, the water rising in the circulating water path 26 is smoothly guided to the inflow port 122. Further, since the width W of the circulation water passage 26 in the front-rear direction is gradually reduced in the vicinity of the inflow port 122, the flow velocity of the water toward the inflow port 122 is increased. Thereby, water can be strongly flowed into the inflow port 122 together with the wire chips.

The water flowing into the accommodating portion 130 of the filter unit 28 flows into the washing and dewatering tub 22 through the respective outflow holes 112a of the filter 113 and the outflow port 112. At this time, the wire scraps and the like cannot pass through the filter 113 and remain in the accommodating portion 130.

During the washing operation, the thread or the like remains in the accommodating portion 130 of the filter unit 28. The user removes the filter unit 28 from the circulation water path 26, holds the front case 110 with one hand, and holds the protruding piece 123 of the rear case 120 with the other hand to the rear. As shown in FIG. 4(b), the front case 110 and the rear case 120 are in an open state, and the user can take out the wire scraps and the like from the inside of the filter unit 28.

<Effects of the Present Embodiment>

As described above, according to the present embodiment, since the filter unit 28 is disposed so as to straddle between the barrel portion 22a and the bottom portion 22b in the lower portion of the washing and dewatering tub 22, even in the pump chamber 25 In the case where the generated water level difference is the same, the amount of water that can be fed to the filter unit 28 can also be increased, and as a result, more wire scraps and the like can be collected. Further, in other words, it can be said that the water level difference required for feeding water into the filter unit 28 can be suppressed low. Thereby, even when the number of revolutions of the pulsator 24 is low and the water level in the washing and dewatering tub 22 is low, water can be sufficiently supplied to the filter unit 28, and collection of swarf or the like can be satisfactorily performed.

Further, according to the present embodiment, since the filter unit 28 is formed in a box shape which is flat in the front-rear direction, the amount by which the filter unit 28 protrudes toward the inside of the washing and dewatering tub 22 can be suppressed. Therefore, even if the filter unit 28 is disposed at the lower portion of the washing and dewatering tub 22, there is no interference with the pulsator 24.

Further, in the present embodiment, the filter unit 28 is attached to the circulating water passage 26 so as to be inclined obliquely toward the inner circumferential surface of the washing and dewatering tub 22. Therefore, when the height position of the inflow port 122 is set to be the same as in the case of being mounted in the vertical state, the size of the filter unit 28 in the up and down direction can be increased, and the wire can be increased corresponding to the enlarged portion. The storage volume of the etc. Further, as shown in FIG. 2, in the configuration of the washing and dewatering tub 22, even if the inner diameter of the bottom portion 22b becomes smaller than the inner diameter of the tub portion 22a, since the lower portion of the filter unit 28 is located closer to the washing and dewatering tub 22 than the upper portion The position of the inner side can also suppress the narrowing of the portion of the circulating water passage 26 constituted by the water passage forming member 27 and the bottom portion 22b.

Further, since the protruding piece 123 is provided at the position above the inflow port 122 in the filter unit 28, the water flow in the circulating water path 26 can be changed by the protruding piece 123 in a state where the filter unit 28 is attached to the circulating water path 26. The water is smoothly guided to the inflow port 122. Further, when the filter unit 28 is detached from the circulating water passage 26 and the wire scrap or the like is recovered, the front case 110 and the rear case 120 can be easily opened by using the protruding piece 123 as a handle.

Further, according to the present embodiment, the width W of the circulation water passage 26 in the front-rear direction is gathered at least in the vicinity of the inflow port 122 so as to gradually become smaller as it approaches the inflow port 122. Thereby, the flow rate of the water toward the inflow port 122 is increased, and the water and the wire can be strongly flowed into the inflow port 122, and the collection effect of the wire scrap or the like can be expected to be improved.

Although the embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments and the like, and various modifications other than the above may be made in the embodiments of the present invention.

<Modification 1>

FIG. 6 is an enlarged cross-sectional view showing a main part of a peripheral portion of the circulation water passage 26A to which the filter unit 28A is attached according to the first modification.

Regarding the water path forming member 27A constituting the filter unit 28A and the circulating water path 26A, The same components of the filter unit 28 and the water channel forming member 27 of the embodiment are denoted by the same reference numerals, and description thereof will be omitted.

In the filter unit 28A, no protruding piece is provided above the inflow port 122. Instead, in the water passage forming member 27A, a steering plate 206 extending to the left and right is formed behind the upper portion of the inflow port 122. The left and right widths of the deflector plate 206 are preferably set to be equal to or greater than or equal to the left and right widths of the inflow port 122. The rear end of the steering plate 206 is adjacent to the inner circumferential surface of the washing and dewatering tub 22. The steering plate 206 corresponds to the steering body of the present invention.

Also in the case of adopting such a configuration, the water flow in the circulating water path 26A can be changed by the deflector 206 to smoothly guide the water to the inflow port 122 as in the above embodiment.

<Modification 2>

In the above embodiment, a box-shaped filter unit 28 capable of storing chips or the like inside is used. However, as described below, the filter unit 28B including the bag body filter 304 may be used.

FIG. 7 is an enlarged cross-sectional view showing a main part of a peripheral portion of the circulation water passage 26A to which the filter unit 28B is attached according to the second modification.

In the present modification, the water path forming member 27A is used in the same manner as in the first modification. The filter unit 28B is attached to the water passage forming member 27A, that is, the circulating water passage 26A.

The filter unit 28B is provided with a filter case 301 having an inflow port 302 that is long in the vertical direction on the rear surface. An opening 303 is formed in the front surface of the filter case 301, and a wire filter 304 made of a mesh bag is attached to the opening 303. The engagement claw portion 305 which is the same as the engagement claw portion 114 of the above-described embodiment is formed at the upper end portion of the filter case 301. The engaging claw portion 305 includes a main body portion 305a and a claw portion 305b, and the claw portion 305b is engaged with the engaging piece 203 of the water passage forming member 27A. Further, at the lower end portion of the filter case 301, the same mounting rib 306 as that of the mounting rib 115 of the above-described embodiment is formed, and the mounting rib 306 is fitted into the rib receiving interface 204 of the water path forming member 27A.

In the configuration of the present modification, the water flowing from the circulating water passage 26A through the inflow port 302 into the filter cartridge 301 further flows through the yarn end filter 304 into the washing and dewatering tub 22. The strands and the like contained in the water remain in the line head filter 304.

In the configuration of the present modification, since the filter unit 28A is inclined such that the tip end side of the yarn end filter 304 becomes high, contact between the yarn end filter 304 and the pulsator 24 can be avoided.

<Other Modifications>

In the above embodiment, the front case 110 and the rear case 120 are rotatably coupled to the lower end portion through The rear case 120 is rotated rearward to open the front case 110 and the rear case 120. However, the front case 110 and the rear case 120 may be separated in any manner. For example, the front case 110 and the rear case 120 may be completely separated in the front-rear direction.

Further, in the above embodiment, the box-shaped filter unit 28 is formed by combining the front case 110 opened rearward and the rear case 120 opened to the front. However, the structure of the box-shaped filter unit is not limited to the above structure. For example, a structure in which the filter unit is constituted by a case in which the rear surface is opened and a cover body covering the rear surface can also be employed.

In the above embodiment, the water passage forming member 27 extends upward to the position of the balance ring 23, and is coupled to the balance ring 23 although not shown. However, since the portion above the mounting opening portion 201 of the water passage forming member 27 does not function as the circulating water passage 26, these upper portions may not be provided.

Although the fully automatic washing machine 1 of the above embodiment does not have a drying function, the present invention is also applicable to a fully automatic washing machine having a drying function.

Further, the embodiments of the present invention can be variously modified as appropriate within the scope of the technical idea of the claims.

Claims (6)

A washing machine characterized by comprising: Washing the dewatering bucket to contain the laundry; a pulsator that is freely rotatably disposed at the bottom of the washing and dewatering bucket; a circulation water passage formed at a side portion of the washing and dewatering tub for supplying water from the bottom to the upper side by rotation of the pulsator; a filter unit is attached to the circulating water passage, and sucks water from the circulating water passage back into the washing and dewatering tub from the inflow port, passes it, and collects wire scraps and the like contained in the passing water. The washing and dewatering tub includes a tub body and a bottom portion mounted to a lower portion of the tub body portion, The filter unit is located at a lower portion of the wash dewatering tub in a manner spanning between the barrel portion and the bottom portion. A washing machine according to claim 1, wherein The filter unit has a box shape whose size in the front-rear direction is smaller than the size in the up, down, left, and right directions. The inflow port is formed on the rear surface, and an outflow port through which the sucked water flows out is formed on the front surface, Inside the outflow port, a filter that allows water to pass through and retains the lint or the like is disposed. A washing machine according to claim 1 or 2, characterized in that The filter unit is inclined so as to be tilted toward the side surface side of the washing and dewatering tub in a state of being attached to the circulating water passage. A washing machine according to any one of claims 1 to 3, characterized in that In the circulating water passage, a steering body that converts a water flow that is going to the upper side of the inflow port into a water flow toward the inflow port is provided. A washing machine according to any one of claims 1 to 4, characterized in that On the upstream side of the inflow port of the circulating water passage, at least in the vicinity of the inflow port, the width of the water path from the side of the washing dewatering bucket toward the filter unit is as close as described The entrance is gradually getting smaller. A washing machine according to claim 2, wherein The filter unit includes a first member formed for the outflow port and a second member formed for the inflow port, The first member and the second member are coupled in such a manner as to be separable in the front-rear direction. In the second member, a dome-shaped projection that protrudes rearward is provided at a position above the inflow port.

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