WO2016150383A1

WO2016150383A1 - Washing machine

Info

Publication number: WO2016150383A1
Application number: PCT/CN2016/077120
Authority: WO
Inventors: 西浦直人
Original assignee: 青岛海尔洗衣机有限公司; 海尔亚洲株式会社
Priority date: 2015-03-23
Filing date: 2016-03-23
Publication date: 2016-09-29
Also published as: EP3276070B1; JP6502139B2; KR20170137783A; CN107532368B; EP3276070A1; CN107532368A; EP3276070A4; KR101997882B1; JP2016178996A; US20180066393A1

Abstract

A fully-automatic washing machine, having: a circulating water path (25), disposed on a side surface of a washing and dehydration drum (21) and allowing water supplied by rotation of a pulsator (23) to pass therethrough; a water path forming component (26) made of resin, forming the circulating water path (25) with an inner circumferential wall (21a) of the washing and dehydration drum (21); a filter mounting portion (201), formed in the water path forming component (26); and a filter unit (27), rotatably mounted in the filter mounting portion (201), suctioning water returning from the circulating water path (25) to the washing and dehydration drum (21) and water flowing along the inner circumferential wall (21a) in a flow generated by rotation of the pulsator (23) and enabling the water to pass therethrough, and collecting lint contained in the water passing therethrough. The filter mounting portion (201) comprises a lower support shaft (202) constituting a rotation shaft of the filter unit (27) and an opening portion (206) formed at the back of the lower support shaft (202) and communicated with the circulating water path (25). A wall portion (210) for suppressing outflow of water from the opening portion (203) is formed toward the inner circumferential wall and on a surface of the water path forming component (26) facing the circulating water path (25). The wall portion (210) can improve the lint collection efficiency of the filter unit (27).

Description

washing machine

Technical field

The present invention relates to a washing machine.

Background technique

Conventionally, in a fully automatic washing machine, as a structure for collecting scraps and dust which are discharged from the laundry at the time of washing, the thread collecting structure shown in Fig. 10 can be employed. A washing machine using the filter collection structure is described, for example, in Patent Document 1.

Fig. 10 (a) is a cross-sectional view showing the main part of the washing and dewatering tub 500 of the yarn end filter collecting structure. At the side surface portion of the washing and dewatering tub 500, a circulation water passage 520 is formed by the water passage forming member 510. The water channel forming member 510 is formed with a filter attaching portion 511 that is recessed rearward, and the filter unit 530 is detachably provided in the filter attaching portion 511. In the filter attachment portion 511, a first support shaft 512 that protrudes upward is formed on the lower surface 511a, a first shaft hole 513 is formed in the upper surface 511b, and an outflow port 514 is formed in the rear surface 511c. A second shaft hole 531 disposed at a lower portion of the filter unit 530 is fitted into the first support shaft 512, and a second support shaft 532 disposed at an upper portion of the filter unit 530 is fitted into the first shaft hole 513. Thereby, the filter unit 530 has the first support shaft 512 and the second support shaft 532 as the rotation axes, and can only be rotated by a predetermined angle in the left-right direction. The circulation water path 520 is connected to the side of the pulsator 540.

When the pulsator 540 rotates, as indicated by an arrow F1, water pushed out from the pumping vane 541 of the pulsator 540 in the outer circumferential direction is introduced into the circulating water passage 520, flows out from the outflow port 514, and flows through the filter unit 530 to return to the washing and dehydrating bucket 500. Inside. At this time, the strands and the like contained in the water are collected by the filter unit 530.

Further, the filter unit 530 is pushed and rotated by the flow of water generated by the rotation of the pulsator 540, and the water flowing along the inner peripheral wall of the washing and dewatering tub 500 flows into the filter unit from the suction port 533 of the rear surface as indicated by an arrow F2. Within 530, and through filter unit 530. At this time, the strands and the like that flow in together with the water are collected by the head filter unit 530.

Prior art literature

Patent literature

Patent Document 1: Japanese Laid-Open Patent Publication No. 2000-334198

Problems to be solved by the invention

The water path forming member 510 may be formed of a resin material. In this case, the water path forming member 510 It is produced by molding with a mold.

FIG. 10(b) is a view showing a main part of the mold M in which the water passage constituting member 510 is molded. For example, for the molding of the water passage forming member 510, a mold M composed of the first mold M1 on the front side and the second mold M2 on the back side and divided in the front-rear direction of the water passage forming member 510 can be used. In this case, since one side of the first support shaft 512 is formed by the second mold M2, a second mold is formed at a position behind the first support shaft 512 at the rear surface 511c of the filter mounting portion 511. The opening portion 515 through which the M2 passes. It should be noted that a third mold that slides in the protruding direction of the first support shaft 512 may be added to the mold M, and the first support shaft 512 may be formed by the third mold. However, in this case, the opening portion 515 is not formed, and there is a possibility that a sliding mark is formed on the rear surface 511c, which may impair the appearance phase or the wire thread.

The opening 515 formed in the water passage forming member 510 communicates with the inside of the circulating water passage 520. Therefore, as indicated by an arrow F3 in FIG. 10(a), a part of the water flowing through the circulating water passage 520 toward the outflow port 514 flows out from the opening portion 515. The effluent water is returned to the washing and dewatering tank 500 without passing through the filter unit 530. In this case, the collection efficiency of the lint or the like of the filter unit 530 may be lowered.

Summary of the invention

Accordingly, an object of the present invention is to provide a washing machine capable of improving collection efficiency of chips and the like.

Solution to solve the problem

A washing machine according to an embodiment of the present invention includes a washing and dewatering tub for storing laundry; a pulsator is rotatably disposed at a bottom of the washing and dewatering tub; and a circulation water passage is provided at a side portion of the washing and dewatering tub for passing through The water sent by the rotation of the pulsator flows; the water path forming member made of resin forms the circulation water path with the inner peripheral wall of the washing and dewatering tub; and the filter mounting portion is formed in the water path forming member; a filter unit rotatably mounted to the filter mounting portion, sucking water returning from the circulating water passage into the washing and dewatering tub and along the inside by a flow of water generated by rotation of the pulsator The water flowing through the peripheral wall passes through it, collecting the set of wire scraps contained in the passing water. Here, the filter mounting portion includes a fulcrum that constitutes a rotating shaft of the filter unit, and an opening formed at a rear of the fulcrum and communicating with the inside of the circulating water passage. Further, a wall portion that suppresses the outflow of water from the opening portion is formed on the surface of the water passage forming member facing the circulating water passage toward the inner peripheral wall side.

According to the above configuration, since the water flowing through the circulation water passage can be well introduced into the filter unit, Therefore, it is expected to improve the collection efficiency of the wire and the like of the filter unit.

In the washing machine of the present embodiment, the wall portion may have a configuration that surrounds at least three of the lower portion and the left and right sides of the opening portion.

According to the configuration described above, it is possible to suppress the water which is temporarily branched by the collision with the lower wall of the wall portion from flowing into the opening from the side surface, and it is possible to further suppress the outflow of water from the opening.

In the case of employing the above configuration, a gap may be formed between the wall portion and the inner peripheral wall.

When such a configuration is employed, even if water discharged from the laundry enters the inside of at least three wall portions surrounding the opening portion during the dehydration process, the entering water can flow out from the gap into the circulation water passage. Therefore, it is possible to prevent water from remaining in the inside of the wall portion.

In the washing machine of the present embodiment, the wall portion may include a protruding portion having a shape in which the center portion protrudes toward the upstream side of the circulating water passage from both end portions of the opening portion in the left-right direction.

According to the above configuration, the water flowing through the circulating water passage smoothly branches to the right and left by colliding with the protruding portion. Thereby, since the flow velocity of the water in the circulation water passage can be suppressed from being lowered, the wire scraps and the like can be satisfactorily transported to the filter unit by the water flow.

Effect of the invention

According to the present invention, it is possible to provide a washing machine capable of improving collection efficiency of chips and the like.

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 a longitudinal cross-sectional view showing a main part of a washing and dewatering tub in a peripheral portion of the circulation water passage according to the embodiment.

3 is a cross-sectional view showing a main part of a washing and dewatering tub in a peripheral portion of the circulation water passage according to the embodiment.

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

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

FIG. 6 is a rear perspective view showing a configuration of a water passage forming member according to an embodiment.

FIG. 7 is a view showing a flow of water flowing into the circulation water passage toward the outflow port according to the embodiment.

8 is a rear perspective view of a main part of a water passage forming member showing a configuration of a water blocking wall portion according to Modification 1 and Modification 2.

FIG. 9 is a view schematically showing a configuration of a water blocking wall portion according to another modification.

Fig. 10 is a view for explaining an example of a thread collecting structure.

detailed description

Hereinafter, a fully automatic washing machine according to 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 opened at the upper and lower surfaces, an upper panel 12 covering the upper surface of the body portion 11, and a leg 13 supporting the body portion 11. The upper panel 12 is formed with an input port 14 for washing. 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 hanging bars (not shown). Inside the outer tub 20, a washing and dewatering tub 21 is disposed. The outer tub 20 and the washing and dewatering tub 21 are slightly inclined forward. The washing and dewatering tub 21 is rotated about a rotation axis R that is slightly inclined forward with respect to the vertical direction. The casing 10 has a protruding portion 10a that protrudes forward in accordance with the extent to which the upper portion of the outer tub 20 protrudes forward.

A plurality of dehydration holes 21b are formed in the inner peripheral wall 21a of the washing dewatering tub 21. Further, a plurality of water passing holes 21c are formed in the bottom surface of the washing and dewatering tub 21. Further, a balance ring 22 is provided on the upper portion of the washing and dewatering tub 21.

At the bottom of the washing and dewatering tub 21, a pulsator 23 is disposed. On the surface of the pulsator 23, a plurality of blades 23a radially extending from the center of the surface are formed. Further, on the back surface of the pulsator 23, a plurality of pumping blades 23b radially extending from the center of the back surface are formed. These pumping blades 23b are disposed in the pump chamber 24 formed between the back surface of the pulsator 23 and the bottom surface of the washing and dewatering tub 21.

The circulation water passage 25 extending in the up-down direction along the inner peripheral wall 21a of the washing and dewatering tub 21 is formed by the water passage forming member 26 and the inner peripheral wall 21a. The lower end portion of the circulating water passage 25 is connected to the pump chamber 24. The filter unit 27 is detachably attached to the circulating water passage 25, that is, the water passage forming member 26 constituting the circulating water passage 25. The filter unit 27 collects the lint and dust which are discharged from the laundry at the time of washing.

At the outer bottom of the outer tub 20, a torque generating drive unit 30 that drives the washing and dewatering tub 21 and the pulsator 23 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 by which the torque of the drive motor 31 is transmitted only to the pulsator 23 to rotate only the pulsator 23 during the washing process and the rinsing process; during the dehydration process, The torque of the drive motor 31 is transmitted to the pulsator 23 and the washing and dewatering tub 21, so that the pulsator 23 and the washing and dewatering tub 21 are integrally rotated. Further, the transmission mechanism portion 32 has a speed reduction mechanism. During the washing process and the rinsing process, the pulsator 23 is rotated at the number of revolutions of the drive motor 31 in accordance with the speed at which the speed reduction ratio of the speed reduction mechanism is lowered.

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 21 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 21 is disposed. The water supply unit 50 is connected to a water supply valve 51, and the water supply valve 51 is connected to the faucet. The water supply unit 50 is charged with detergent when performing a washing operation. When the water supply valve 51 is opened, tap water is introduced into the water supply unit 50. The tap water that has been introduced flows out of the water supply unit 50 after being mixed with the detergent in the water supply unit 50, and is supplied into the washing and dewatering tank 21.

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 23 is rotated in the right direction and the left direction in a state where water is stored in the washing and dewatering tub 21. A water flow is generated in the washing and dewatering tub 21 by the rotation of the pulsator 23. 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 21 and the pulsator 23 are integrally rotated at a high speed. The laundry is dehydrated by the action of centrifugal force generated by washing the dewatering tub 21.

The fully automatic washing machine 1 of the present embodiment is characterized by a yarn end collecting structure composed of a circulation water passage 25 and a filter unit 27. Hereinafter, the yarn end collecting structure will be described in detail.

FIG. 2 is a longitudinal cross-sectional view showing a main part of the washing and dewatering tub 21 in the peripheral portion of the circulating water passage 25. 3 is a cross-sectional view showing a main part of the washing dewatering bucket 21 of the peripheral portion of the circulating water passage 25, and FIG. 3(a) shows a state in which a right-handed water flow is generated, and FIG. 3(b) shows that a state is produced. The state of the left-handed water flow. 4 is a view showing a configuration of the filter unit 27, FIG. 4(a) is a perspective view of the filter unit 27, and FIG. 4(b) is a side longitudinal sectional view of the filter unit 27. Figures 5 and 6 show the formation of waterways, respectively. A front view and a rear perspective view of the structure of the member 26.

The filter unit 27 is provided with a yarn end filter 110 and a filter case 120. The wire end filter 110 is composed of a bag body of a mesh fabric. The filter case 120 is formed in a hollow elongated cube shape, and its rear surface is opened as a suction port 121. A mounting opening portion 122 is formed on the front surface of the filter case 120, and the wire head filter 110 is attached to the mounting opening portion 122.

An elastic piece 123 that can be bent downward is formed at an upper end portion of the filter case 120, and an upper support shaft 124 that protrudes upward is formed on an upper surface of the elastic piece 123. Further, an operation piece 125 is formed at the front end portion of the elastic piece 123. The user can bend the elastic piece 123 downward by pressing the operation piece 125 with a finger. Further, a lower shaft hole 126 is formed at a lower end portion of the filter case 120.

The water passage forming member 26 is formed of a resin material and extends in the vertical direction and slightly bulges forward. The water path forming member 26 has a surface facing the inside of the washing and dewatering tub 21 and a rear surface thereof facing the inside of the circulating water passage 25. On the surface of the water passage forming member 26, a filter mounting portion 201 that is recessed in a shape corresponding to the filter case 120 of the filter unit 27 is formed.

In the filter mounting portion 201, a lower support shaft 202 that protrudes upward is formed in the bottom portion 201a, and an upper shaft hole 203 is formed in the upper portion 201b. The lower support shaft 202 corresponds to the fulcrum of the present invention.

In the rear surface 201c of the filter mounting portion 201, a plurality of outflow ports 204 are formed slightly below the center portion and the center portion. Further, a concave portion 205 is formed in the upper portion of the rear surface 201c of the filter mounting portion 201. When the filter unit 27 is attached to the filter mounting portion 201, the rear portion of the elastic piece 123 of the filter unit 27 is housed in the recess 205.

Further, on the rear surface 201c of the filter mounting portion 201, a rectangular opening portion 206 slightly larger than the lower support shaft 202 is formed at a position behind the lower support shaft 202. The water path forming member 26 is produced by molding with a mold. As described with reference to Fig. 10 (b), the opening portion 206 is formed in order to pass the mold for forming the lower support shaft 202 at the time of molding production. The opening 206 communicates with the inside of the circulating water passage 25.

On the left and right sides of the filter mounting portion 201, a plurality of right flow paths 207 and left flow paths 208 which are recessed in the same manner as the filter mounting portion 201 and extend in the left-right direction are formed on the left and right sides of the water filter forming member 201, respectively.

On the back surface of the water passage forming member 26, a water path dividing rib 209 having a double structure is formed rearward. The inner region of the water passage dividing rib 209 constitutes a circulating water passage 25. Further, on the back surface of the water passage forming member 26, a water blocking wall portion 210 is formed toward the rear side of the opening portion 206 toward the inner peripheral wall 21a side of the washing and dewatering tub 21. The water blocking wall portion 210 corresponds to the wall portion of the present invention. The water blocking wall portion 210 surrounds the opening portion The 206 square manner is formed in a square cylindrical shape, and has a lower wall 211, an upper wall 212, a left wall 213, and a right wall 214. As shown in FIG. 2, in a state where the water passage forming member 26 is attached to the inner peripheral wall 21a of the washing and dewatering tub 21, a predetermined gap S is formed between the water blocking wall portion 210 and the inner peripheral wall 21a.

The filter unit 27 is attached to the filter mounting portion 201 of the water passage forming member 26. When the water path forming member 26 is installed, the user first inserts the lower support shaft 202 of the filter mounting portion 201 into the lower shaft hole 126 of the filter unit 27. Then, when the user presses the operation piece 125 of the filter unit 27, the elastic piece 123 is bent downward so that the upper support shaft 124 is lower than the upper shaft hole 203 of the filter attachment portion 201, and the filter unit 27 is made The upper part moves rearward. Then, when the upper fulcrum 124 reaches the position of the upper shaft hole 203, the user releases the bending of the elastic piece 123, and the upper fulcrum 124 is fitted into the upper shaft hole 203. The filter unit 27 is fixed to the water passage forming member 26 in such a manner that the upper support shaft 124 and the lower support shaft 202 are rotation axes, and can be rotated only by a predetermined angle in the right or left direction when viewed from the front of the water passage forming member 26.

Next, the collection operation of the wire scraps and the like of the filter unit 27 will be described with reference to FIGS. 2 and 3 .

During the washing process or the rinsing process, when the pulsator 23 rotates, the water between the washing dewatering tub 21 and the outer tub 20 is sucked into the pump chamber 24 through the water-passing hole 21c by the suction action of the pumping blade 23b, to the outer circumference. The direction was launched. As indicated by an arrow F1, the pushed water rises in the circulating water passage 25 and flows out from the outflow port 204, and passes through the yarn end filter 110 of the filter unit 27 to return to the washing dewatering tank 21. At this time, the wire scraps and the like contained in the water are collected by the yarn end filter 110.

Further, as shown in FIGS. 3(a) and (b), when a right-handed or left-handed water flow is generated due to the rotation of the pulsator 23, the filter unit 27 is inclined in the right direction or the left direction. Thereby, as indicated by an arrow F2, water flowing along the inner peripheral wall 21a of the washing and dewatering tub 21 flows into the filter unit 27 from the suction port 121 on the rear surface, and flows through the yarn end filter 110. At this time, the wire scraps and the like contained in the water are collected by the yarn end filter 110.

FIG. 7 is a water flow diagram showing the flow into the circulating water passage 25 toward the outflow port 204. The opening portion 206 located upstream of the outflow port 204 is surrounded by the water blocking wall portion 210, and the water rising in the circulating water channel 25 collides with the lower wall 211 of the water blocking wall portion 210 to be branched to the right and left, and flows through the water blocking wall portion 210. The left and right sides reach the outflow port 204. Thereby, it is possible to suppress a part of the water flowing through the circulating water passage 25 from flowing out of the opening 206.

In addition, when the dehydration process is performed, there is a possibility that water discharged from the laundry enters the inside of the water blocking wall portion 210 through the opening portion 206. In this case, the entered water flows from the gap S between the water blocking wall portion 210 and the inner peripheral wall 21a into the circulating water passage 25. Therefore, it is not easy to be in the water blocking wall portion 210 The interior has been left with water.

As described above, in the present embodiment, the water blocking wall portion 210 provided on the back surface of the water passage forming member 26 can suppress the flow of a part of the water flowing through the circulating water passage 25 from the opening portion 206. Therefore, since the water flowing through the circulation water passage 25 can be introduced into the filter unit 27 favorably, it is expected that the collection efficiency of the wire and the like of the filter unit 27 can be improved.

Further, according to the present embodiment, since the water blocking wall portion 210 has a structure that surrounds the opening portion 206, it is possible to suppress the water that is temporarily branched in the lower wall 211 from flowing into the opening portion 206 from the side surface, and it is possible to further suppress the water flow from the opening portion 206. .

Further, according to the present embodiment, since the gap S is formed between the water blocking wall portion 210 and the inner peripheral wall 21a of the washing and dewatering tub 21, water entering the inside of the water blocking wall portion 210 during the dehydration process can flow out from the gap S. In the circulation water passage 25, it is possible to prevent water from remaining in the inside of the water blocking wall portion 210.

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

(a) of FIG. 8 is a rear perspective view of a main part of the water passage forming member 26 showing the configuration of the water blocking wall portion 210A according to the first modification.

The water blocking wall portion 210A of the present modification example is constituted only by the lower wall 211 that extends in the left-right direction at the lower edge of the opening portion 206. The width of the water blocking wall portion 210A is set to be larger than the lateral width of the opening portion 206. The water that has risen in the circulation water passage 25 collides with the water blocking wall portion 210A and is branched to the right and left, and flows to the left and right outside of the opening portion 206 to reach the outflow port 204.

Therefore, in the present modification, it is possible to suppress a part of the water flowing through the circulating water passage 25 from flowing out of the opening portion 206, and it is possible to improve the collection efficiency of the wire and the like of the filter unit 27.

(b) of FIG. 8 is a rear perspective view of a main part of the water passage forming member 26 showing the configuration of the water blocking wall portion 210B according to the first modification.

The water blocking wall portion 210B of the present modification includes a protruding portion 215 below the lower wall 211, and the protruding portion has a substantially V shape in which the center portion protrudes toward the upstream side of the circulating water passage 25 from the both left and right end portions. The water rising in the circulating water passage 25 collides with the protruding portion 215 and is branched to the left and right, and flows to the right and left sides of the water blocking wall portion 210B to reach the outflow port 204.

Further, according to the present modification, the water flowing through the circulating water passage 25 smoothly collides with the right and left sides by colliding with the protruding portion 215. Thereby, since the decrease in the flow velocity of the water in the circulating water passage 25 can be suppressed, it is possible to convey the wire flow or the like to the filter unit 27 with good water flow.

In addition to the water blocking wall portion 210 of the above-described embodiment, the water blocking wall portion 210A of the above-described first modification, and the water blocking wall portion 210B of the second modification, the wall portion that suppresses the outflow of water from the opening portion 206 is also Various water blocking wall portions 210C to 210I, for example, as shown in FIG. 9, may be provided in association with the opening portion 206.

For example, as shown in FIG. 9(a), a water blocking wall portion 210C having no upper wall 212 and surrounding the opening portion 206 by the lower wall 211, the left wall 213, and the right wall 214 may be provided. Further, as shown in FIG. 9(b), the water blocking wall portion 210D may be provided without the lower wall 211, the left wall 213, and the right wall 214, but the left and

right walls

213, 214 do not extend to the upper end of the opening portion 206. By arranging at least the lower side and the left and right sides of the opening portion 206 as shown in the water blocking

wall portions

210C and 210D of FIGS. 9(a) and 9(b), it is possible to suppress the water temporarily shunted from the lower wall 211 from the side. In the case of flowing into the opening portion 206, the outflow of water from the opening portion 206 can be further suppressed as compared with the water blocking wall portion 210A composed only of the lower wall 211 as in the first modification.

Further, as shown in FIG. 9( c ), a water blocking wall portion 210E having no V-shaped protruding portion 215 protruding from the left and

right walls

213 and 214 may be provided without the lower wall 211 . Further, as shown in FIGS. 9(d) and 9(e), the water blocking

wall portions

210F and 210G having the non-V-shaped circular arc or the U-shaped protruding portion 216 may be provided. Further, as shown in FIG. 9(f), a water blocking wall portion 210H composed only of a V-shaped protruding portion 215 may be provided. Further, as shown in FIG. 9(g), a water blocking wall portion 210I composed of only a circular arc or a U-shaped protruding portion 216 may be provided.

Further, in the above-described embodiment, the water passage forming member 26 extends upward to the position of the balance ring 22, and a portion above the filter unit 27 functions as a baffle that rubs the laundry that is stirred by the water flow. However, since the upper portion does not function as the circulation water passage 25, it can be removed.

Further, in the above embodiment, the outer tub 20 and the washing and dewatering tub 21 are inclined forward, but they may not be inclined.

Although the fully automatic washing machine 1 of the above embodiment does not have a drying function, the present invention can also be used. For fully automatic washing machines with 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.

Description of the reference numerals

21: washing dewatering bucket; 21a: inner peripheral wall; 23: pulsating wheel; 25: circulating waterway; 26: waterway forming member; 27: filter unit; 201: filter mounting portion; 202: lower fulcrum (support shaft); 206: opening portion; 210: water blocking wall portion (wall portion); 210A to 210I: water blocking wall portion (wall portion); 215: protruding portion; 216: protruding portion.

Claims

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 circulating water passage disposed at a side portion of the washing and dewatering bucket for flowing water sent by rotation of the pulsator;

a water path forming member made of resin, which forms the circulation water path between the inner peripheral wall of the washing and dewatering tub;

a filter mounting portion formed in the water passage forming member;

a filter unit rotatably mounted to the filter mounting portion, sucking water returning from the circulating water passage into the washing and dewatering tub and along the inside by a flow of water generated by rotation of the pulsator The water flowing through the wall of the circumference passes through, collects the wire scraps contained in the water passing through, etc.

The filter mounting portion includes a fulcrum that constitutes a rotating shaft of the filter unit, and an opening formed at a rear of the fulcrum and communicating with the inside of the circulating water passage,

A wall portion that suppresses the outflow of water from the opening portion is formed on a surface of the water passage forming member facing the circulating water passage toward the inner peripheral wall side.
A washing machine according to claim 1, wherein

The wall portion surrounds at least three of the lower side and the left and right sides of the opening.
A washing machine according to claim 2, wherein

A gap is formed between the wall portion and the inner peripheral wall.
A washing machine according to any one of claims 1 to 3, characterized in that

The wall portion includes a protruding portion having a shape in which a central portion protrudes toward an upstream side of the circulating water passage from both end portions of the opening portion in the left-right direction.