JP2000005485A - Washing machine - Google Patents

Abstract

(57) [Summary] [PROBLEMS] To prevent lifting of laundry by a partition in a washing machine that efficiently removes dirt by effective action of washing water without damaging or tangling the laundry. So, during washing, washing water does not splatter,
In addition, the laundry and the washing machine can be washed without being damaged, and the partition body can be easily attached and detached, thereby improving usability. SOLUTION: A partition member 16 is disposed so as to cover laundry put into a washing and dewatering tub 3 rotatably provided in an outer tub 1 from above, and the partition member 16 is made of a flexible material. The periphery is made uneven in the radial direction, and the protrusion can be locked on the upper part in the washing and dewatering tub 3.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a washing machine for efficiently removing dirt by an effective action of washing water without damaging or tangling laundry.

[0002]

2. Description of the Related Art A configuration of a conventional washing machine for reducing damage and entanglement of laundry due to mechanical force during washing will be described with reference to FIG.

As shown in FIG. 11, the outer tub 1 includes a washing and dewatering tub 3 in which a stirring blade 2 is rotatably disposed at the bottom.
It is hung from the hanging bar 4 to the outer frame 5 of the washing machine. The motor 6 drives the stirring blade 2 via the V-belt 7 and the speed reduction mechanism 8.
Alternatively, the washing and dewatering tub 3 is driven. The drain valve 9 drains the washing water in the washing and dewatering tub 3, and the water supply valve 10 supplies water to the washing and dewatering tub 3. The water level detecting means 11 detects the water level in the outer tub 1.

The washing and dewatering tub 3 is provided with an annular fluid balancer 12 for reducing vibration during dehydration, and a lid 13 is provided above the washing and dewatering tub 3. Cover body 14
Is provided in the upper part of the outer tank 1 and forms a discharge part for watering. The control device 15 comprises a motor 5, a drain valve 9, a water supply valve 1
The operations such as 0 are controlled, and a series of processes such as washing, rinsing, and dehydration are sequentially controlled.

The operation of the above construction will be described. After the laundry and detergent are put into the washing and dewatering tub 3, the water supply valve 10 is operated to supply water to the set water level in the washing and dewatering tub 3.
Thereafter, the number of revolutions of the washing and dewatering tub 3 is increased. As the number of revolutions increases, the power of stirring the washing water in the washing and dewatering tub 3 increases, and the water surface in the washing and dewatering tub 3 lowers at the center, and the washing and dewatering tub 3 and the outer tub 1 And finally the water is sprayed into the washing and dewatering tub 3 from between the upper end of the washing and dewatering tub 3 and the cover body 14 beyond the height of the upper end of the washing and dewatering tub 3. . The rotation speed of the washing and dewatering tub 3 is set in advance to the rotation speed at which the washing water is sprinkled into the washing and dewatering tub 3.

[0006] As described above, the washing water is sprinkled from the upper portion of the washing and dewatering tub 3 and the washing water is evenly supplied to the laundry to perform the washing process.

[0007]

However, in the case of a washing machine of this configuration, when washing laundry that easily traps air such as a futon, the laundry emerges and the sprinkled washing water splatters or is located above the washing machine. There was a case where it rubbed with a lid or the like and damaged the laundry or the washing machine.

As a solution to this, a partitioning body is provided so as to cover the laundry put into the washing and dewatering tub 3 from above, so that the laundry is prevented from floating and the sprinkled washing water is scattered. Can be prevented.

However, this kind of conventional partitioning body has a substantially perfect circular shape and a substantially uniform thickness over the entire surface like a dehydrating cap of a dehydrating machine, so that it can be attached to and detached from the washing and dehydrating tub 3. It was difficult and inconvenient to use.

[0010] The present invention solves the above-mentioned problem, and the lifting of the laundry is suppressed by the partition body so that the washing water is not spattered during the washing and the laundry and the washing machine are washed without being damaged. The purpose is to make the body easy to put on and take off, and to improve usability.

[0011]

According to the present invention, in order to achieve the above object, a partition member is provided so as to cover the laundry put in a washing and dewatering tub provided rotatably in an outer tub from above. The partition body is made of a flexible material, and its peripheral edge is made uneven in the radial direction, and the convex part can be locked on the upper part in the washing and dewatering tub.

[0012] Thus, when washing laundry such as a futon which easily entraps air, it is possible to suppress the rising of the laundry by the partition body, prevent splashing of washing water, and without damaging the laundry or the washing machine. In addition to being able to be washed, the partition body can be easily attached and detached, and the usability can be improved.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The invention according to claim 1 of the present invention is directed to a washing and dewatering tub rotatably provided in an outer tub, and a washing and dewatering tub put in the washing and dewatering tub is covered from above. The partition body is formed of a flexible material, the periphery of which is uneven in the radial direction,
The convex portion can be locked at the upper part in the washing and dewatering tub, and when washing laundry such as a futon which easily holds air, it is possible to suppress the rising of the laundry by the partition body, and It can be washed without damaging the laundry and washing machine, and can be easily folded when the partition is attached to the washing and dewatering tub, making it easy to put on and take off, and improving usability. be able to.

According to a second aspect of the present invention, in the first aspect of the present invention, the partition body has a large number of holes, and supplies the washing water from above into the washing and dewatering tub. When washing laundry that easily traps air such as futons, the laundry and washing machine may be damaged by supplying washing water from above the partition while holding up the laundry by the partition. It can be washed clean without any.

According to a third aspect of the present invention, in the first or second aspect of the present invention, the minimum diameter portion of the concave portion of the partition is substantially equal to the inner diameter portion of the annular balancer provided above the washing and dewatering tub. Since the partition is locked to the upper part of the washing and dewatering tub by the convex part, it can be easily attached to and detached from the washing and dewatering tub, and is easy to use. Can be improved.

According to a fourth aspect of the present invention, in the first or the second aspect of the present invention, the shape of the concave portion of the partition is a shape of a convex portion extending in the vertical direction inside the washing and dewatering tub. This is substantially compatible, and even when a convex portion is provided on the inner wall surface of the washing and dewatering tub, the partition body can be easily and reliably attached to the washing and dewatering tub.

According to a fifth aspect of the present invention, in the first or the second aspect of the present invention, the convex portion of the partition body is in contact with or close to the inner surface of the washing and dewatering tub. When mounted in the washing and dewatering tub, the tip of the convex portion of the partitioning body abuts or approaches the inner surface of the washing and dewatering tub, so that the partitioning body can be held at a substantially predetermined position.

[0018] The invention described in claim 6 is the above-mentioned claim 1-
In the invention described in 5, the partition body is configured such that the thickness of the peripheral portion is thicker than the thickness of the central portion, the concave portion and the convex portion are provided on the peripheral portion, and the partition body is placed in the washing and dewatering tub. When mounted, the partition can be held in place by the peripheral edge.

According to a seventh aspect of the present invention, in the sixth aspect of the present invention, the length in the radial direction of the peripheral portion of the partition is such that the length of the convex portion is longer than the length of the concave portion. ,
When the partition is mounted in the washing and dewatering tub, the partition can be bent with a weak force by bending at the concave portion, and the partition can be easily mounted.

[0020] The invention described in claim 8 is the above-mentioned claim 1-
In the invention described in 7, the number of recesses of the partition body is an integer multiple of 4, and when the partition body is mounted in the washing and spin-drying tub, a weak force is generated by bending the partition body at the recess. And the partitioning body can be mounted on the washing and dewatering tub with a small bending angle, and can be easily mounted on the washing and dewatering tub, and the usability can be improved.

According to a ninth aspect of the present invention, in the first or the second aspect of the present invention, the partition body is provided with holes so that the opening density gradually increases from the center to the outer periphery. When the partition body is attached to the washing and spin-drying tub and the washing water is supplied from above the partition while rotating the washing and spin-drying tub, the peripheral speed on the outer peripheral side of the partition is higher than the peripheral speed on the center side. Since the size is large, the washing water can be supplied to the laundry almost uniformly by increasing the opening density of the holes.

According to a tenth aspect of the present invention, in the above first, second, and ninth aspects, the partition body has a side opposite to a rotating direction of the washing and dewatering tub from the center side to the outer periphery. A plurality of holes distributed in a substantially spiral shape on the partition, the partition is attached to the washing and spin-drying tub, and when washing water is supplied from above the partition while rotating the washing and spin-drying tub, the laundry is The washing water can be supplied efficiently.

According to an eleventh aspect of the present invention, in the above second, ninth and tenth aspects, the hole of the partition body is
It is formed to be long in the radial direction, and when the partition body is attached to the washing and dewatering tub and the washing and dewatering tub is rotated and the washing water is supplied from above the partition body, the washing water is efficiently supplied to the laundry. can do.

[0024]

Embodiments of the present invention will be described below with reference to the drawings. The same components as those in the conventional example are denoted by the same reference numerals, and description thereof is omitted.

(Embodiment 1) As shown in FIG. 1, the partition 16 is provided so as to cover the laundry put into the washing and dewatering tub 3 from above, and has a certain rigidity such as synthetic resin. As shown in FIG. 2, concave and convex portions 17 and convex portions 18 are provided alternately in the radial direction to form irregularities, and the convex portions 18 are washed and removed as shown in FIG. It can be locked to the fluid balancer 12 in the upper part of the water tank 3.

The partition body 16 has a number of holes 19 and is engaged with the fluid balancer 12 of the washing and dewatering tub 3 so as to cover the laundry put into the washing and dewatering tub 3 from above. The washing and dewatering tub 3 is configured to supply washing water from above.

The operation of the above configuration will be described. After the laundry and the detergent are put into the washing and dewatering tub 3, the partition 16 is set below the fluid balancer 12 so as to cover the laundry from above. At this time, as shown in FIG. 3, the partition body 16 is manually bent into a curved shape in the direction of the arrow around the recess 17 and inserted into the washing and dewatering tub 3 from diagonally above as shown in FIG. When the body 16 is released, as shown by a two-dot chain line, the convex portion 18 can be locked and attached to the fluid balancer 12 in the washing and dewatering tub 3.

Thereafter, as shown in FIG.
0 is operated to supply water into the washing and dewatering tub 3. At this time,
If the laundry is futons or the like that easily hold air, as the water is supplied and the water level rises, the laundry rises due to buoyancy and pushes up the partition 16. Since the projections 18 of the partition 16 can be locked to the fluid balancer 12, when the partition 16 reaches the lower surface of the fluid balancer 16, the partition 16 stops and the laundry does not float any more.

Thereafter, when the water supply to the set water level S1 is completed, the operation of the water supply valve 10 is stopped, and as shown in FIG. 5 (b), the washing and dewatering tub 3 is turned on during the washing water sprinkling process T1 to T2. It is driven to rotate at the rotation speed R1. As the rotation speed of the washing and dewatering tub 3 increases, the power of stirring the washing water in the washing and dewatering tub 3 increases, and the surface of the water in the washing and dewatering tub 3 lowers at the center and rises at the outer periphery, Finally, the upper end of the washing and dewatering tub 3 and the cover 14 are moved beyond the upper end of the washing and dewatering tub 3.
And water is sprayed into the washing and dewatering tub 3.

The sprinkled washing water is supplied to the hole 1 of the partition 16.
9 and is supplied to the laundry. The rotation speed R1 is set in advance to the rotation speed at which the washing water is sprinkled inside the washing and dewatering tub 3.

The operation of the washing water sprinkling process is such that the washing water is sprinkled from the upper portion of the washing and dewatering tub 3 during the period from T1 to T2 and circulates through the laundry. By this process, the washing water can be evenly supplied to the laundry, and the sprinkled washing water repeatedly circulates through the laundry due to the centrifugal force generated by the rotation of the washing and dewatering tub 3. As a result, dirt attached to the laundry is removed.

In the washing water sprinkling process, the washing is not directly agitated when the washing water is sprinkled and passed, so that the washing is not damaged. Also, by setting the partition body 16 above the laundry, when washing the laundry such as a futon which easily holds air, the floating of the laundry can be suppressed by the partition body 16, and the splash of the washing water and the washing can be prevented. Rubbing of the object with the lid or the like does not cause damage to the laundry or the washing machine.

The partition member 16 is made of a flexible material, and its peripheral edge is made uneven in the radial direction. The convex portion 18 can be engaged with the fluid balancer 12 in the upper part of the washing and dewatering tub 3. Therefore, when the partition body 16 is mounted on the washing and dewatering tub 3, it can be easily bent, can be easily attached and detached, and the usability can be improved.

(Embodiment 2) As shown in FIG. 6, the partition 20 is provided with concave portions 21 and convex portions 22 alternately in the radial direction to form irregularities, and the minimum diameter portion of the concave portions 21 is It substantially corresponds to the inner diameter portion of the annular fluid balancer 12 indicated by the two-dot chain line. The protruding portion 22 is configured to abut or approach the inner surface of the washing and dewatering tub 3 also indicated by a two-dot chain line. The partition 20 has a large number of holes 23. Other configurations are the same as those in the first embodiment.

The operation of the above configuration will be described. The minimum diameter of the concave portion 21 of the partition body 20 is the same as that of the fluid balancer 1.
Since the partition body 20 substantially corresponds to the inner diameter part of 2,
Washing and dewatering tub 3 at a portion outside the minimum diameter portion of recess 21
Since it is locked to the upper part of the inside, it is possible to easily attach to and detach from the washing and dewatering tub 3 and improve the usability.

The projection 22 of the partition 20 is in contact with or close to the inner surface of the washing and dewatering tub 3.
0 is mounted in the washing and dewatering tub 3, the partition 20 can be held at a substantially predetermined position.
Is rotated to sprinkle the washing water from the upper part of the washing and dewatering tub 3, whereby the washing water can be evenly supplied to the laundry through the partition body 20, and the dirt attached to the laundry can be removed.

(Embodiment 3) As shown in FIG. 7, the washing and dewatering tub 24 has a stirring blade 2 rotatably disposed at the bottom and a water passage cover 25 fixed to form a circulation water passage 26. The rotation of the stirring blade 2 causes a pump chamber 28 formed on the outer periphery of a lower blade 27 provided on the back surface of the stirring blade 2 to pass through a circulating water passage 26 from a lint filter 29 and a washing and dewatering tub 2.
4 is configured to spray the washing water.

The partition body 30 is provided so as to cover the laundry put into the washing and dewatering tub 24 from above, and is made of a material having a certain rigidity and flexibility such as synthetic resin. Then, as shown in FIG. 8, the periphery is alternately provided with concave portions 31 and convex portions 32 in the radial direction to form irregularities.
The shape of 1 substantially corresponds to the shape of the water channel cover 25. The partition 30 has a large number of holes 33. Other configurations are the same as those in the first embodiment.

The operation of the above structure will be described. In the case where the water channel cover 24 is provided on the inner wall surface of the washing and dewatering tub 24 by making the shape of the concave portion 31 of the partition body 30 substantially correspond to the shape of the water channel cover 25. Even so, the partition body 30 can be easily and reliably attached to the washing and dewatering tub 24,
The washing and dewatering tub 24 is rotated to supply the washing water to the washing and dewatering tub 2
By spraying water from the upper part of 4, the washing water can be supplied evenly to the laundry through the partition body 30,
Dirt attached to the laundry can be removed.

In this embodiment, the circulating water passage 26 is formed by fixing the water channel cover 25 to the washing and dewatering tub 24. However, the convex portion extending in the vertical direction inside the washing and dewatering tub 24 has However, the present invention is not limited to the water channel cover 25, and may be, for example, a baffle plate for improving the cleaning rate.

(Embodiment 4) As shown in FIG. 9, the partition 34 is provided so as to cover the laundry put into the washing and dewatering tub from above, and has a certain rigidity such as synthetic resin. The peripheral portion 35 is made thicker than the central portion 36, and the concave portion 37 and the convex portion 38 are provided on the peripheral portion 35.

The radial length of the peripheral portion 35 is such that the length L1 of the convex portion 38 is longer than the length L2 of the concave portion 37.
Further, the number of the recesses 37 is an integer multiple of 4 (8 in this embodiment). Other configurations are the same as those in the first embodiment.

The operation of the above structure will be described. The peripheral portion 35 of the partition 34 is made thicker than the central portion 36, and the concave portion 37 and the convex portion 38 are provided on the peripheral portion 35. The rigidity of the whole 34 can be increased, and when the partition body 34 is mounted in the washing / dewatering tub, the partitioning body 34 can be securely held at a predetermined position by the peripheral edge portion 35. By spraying the washing water from the upper part of the washing and dewatering tub, the washing water can be evenly supplied to the laundry through the partition body 34, and the dirt attached to the laundry can be removed.

The length of the peripheral portion 35 of the partition body 34 in the radial direction is such that the length L1 of the convex portion 38 is longer than the length L2 of the concave portion 37. When it is mounted on the
It can be bent with a small force, and the partition 34 can be easily mounted.

The number of the concave portions 37 of the partition body 34 is 4
When the partitioning body 34 is folded along the line AA when the partitioning body 34 is mounted in the washing and dewatering tub, there is always a concave portion 37 at the opposed position, and AA
Since there is always a concave portion 37 in the direction perpendicular to the line, it is possible to bend with a weak force, and the partition body 34 can be attached to the washing and dewatering tub with a small bending angle, so that it is easy to attach to the washing and dewatering tub. And the usability can be improved.

(Embodiment 5) In the partition 34 shown in FIG. 9, holes 39 are provided so that the opening density gradually increases from the center side toward the outer periphery. It is formed long in the direction. Other configurations are the same as those of the fourth embodiment.

The operation of the above structure will be described. Since the partition body 34 is provided with the holes 39 so as to gradually increase the opening density from the center side to the outer periphery, the partition body 34 is mounted on the washing and dewatering tub. When the washing and dewatering tub is rotated and the washing water is supplied from above the partition body, the peripheral speed on the outer peripheral side of the partition body 34 is higher than the peripheral speed on the center side. Thereby, the washing water can be supplied to the laundry substantially uniformly.

Since the hole 39 of the partition 34 is formed to be long in the radial direction, the partition 34 is mounted on the washing / dehydrating tub, and the washing water is rotated from above the partition while rotating the washing / dehydrating tub. When supplied, the washing water can be efficiently supplied to the laundry.

(Embodiment 6) As shown in FIG. 10, the partition body 40 is provided so as to cover the laundry put into the washing and dewatering tub from above, and has a certain rigidity such as synthetic resin. And a plurality of holes 41 distributed in a substantially spiral shape as indicated by arrows from the center side to the outer periphery in the direction opposite to the rotation direction of the washing and dewatering tub, as shown by the arrow. Is provided. Other configurations are the same as those in the first to fifth embodiments.

The operation of the above construction will be described. The partition body 40 is provided with a plurality of holes 41 which are distributed almost spirally in the direction opposite to the rotation direction of the washing and dewatering tub from the center to the outer periphery. The partition 40 is mounted on the washing and dewatering tub, and the partition 40 is rotated while rotating the washing and dewatering tub.
When the washing water is supplied from above, the washing water can be efficiently supplied to the laundry.

[0051]

As described above, according to the first aspect of the present invention, the washing and dewatering tub rotatably provided in the outer tub and the laundry put into the washing and dewatering tub are provided. And a partition body arranged to cover from above, wherein the partition body is
Made of a flexible material, the periphery of which is made uneven in the radial direction, and the protrusions can be locked at the upper part in the washing and dewatering tub, so that the laundry such as a futon or the like which easily holds air can be washed. In the case, it is possible to suppress the lifting of the laundry by the partition body, prevent splashing of washing water, wash it without damaging the laundry and the washing machine, and when attaching the partition body to the washing and dewatering tub , Can be easily bent, can be easily attached and detached, and the usability can be improved.

According to the second aspect of the present invention, since the partition body has a large number of holes and is configured to supply the washing water from above into the washing and dewatering tub, the air from the futon or the like is supplied. When washing laundry that is easy to carry, washing water is supplied from above the partition body in a state where the lifting of the laundry is suppressed by the partition body, so that the laundry and the washing machine can be washed cleanly without damage.

According to the third aspect of the present invention, the minimum diameter portion of the concave portion of the partition body substantially corresponds to the internal diameter portion of the annular balancer provided above the washing and dewatering tub. The portion is locked to the upper part in the washing / dewatering tub, so that it can be easily attached to and detached from the washing / dewatering tub, and the usability can be improved.

According to the fourth aspect of the present invention, the shape of the concave portion of the partition body substantially corresponds to the shape of the convex portion extending in the vertical direction inside the washing and dewatering tub. Even when the convex portion is provided on the inner wall surface of the water tub, the partition body can be easily and reliably attached to the washing and dewatering tub.

According to the fifth aspect of the present invention, since the convex portion of the partition body abuts on or approaches the inner surface of the washing and dewatering tub, when the partition is mounted in the washing and dewatering tub,
When the tip of the projection of the partitioning body abuts or approaches the inner surface of the washing and dewatering tub, the partitioning body can be held at a substantially predetermined position.

According to the invention described in claim 6, the partition body is configured such that the peripheral portion is thicker than the central portion, and the concave and convex portions are provided on the peripheral portion. When mounted in the washing and dewatering tub, the partition body can be held at a predetermined position by the peripheral portion.

According to the seventh aspect of the present invention, since the length of the peripheral portion of the partition in the radial direction is longer than the length of the recess, the partition is used for washing and dewatering. When it is mounted inside, it can be bent with a weak force by bending at the concave portion, and the partition can be easily mounted.

According to the eighth aspect of the present invention, the number of recesses of the partition is an integral multiple of four. By folding in, it is possible to bend with a weak force, and the partition body can be attached to the washing and dewatering tub with a small bending angle, it is easy to attach to the washing and dewatering tub, and the usability is improved. it can.

According to the ninth aspect of the present invention, the partition body is provided with holes so that the opening density gradually increases from the center side toward the outer periphery. When the washing water is supplied from above the partition while rotating the washing and dewatering tub, the peripheral speed on the outer peripheral side of the partition is higher than the peripheral speed on the center, so the opening density of the holes should be increased. Thereby, the washing water can be supplied to the laundry substantially uniformly.

According to the tenth aspect of the present invention,
The partition body is provided with a plurality of holes distributed in a substantially spiral shape on the side opposite to the rotation direction of the washing and dewatering tub from the center side to the outer periphery, so that the partition body is attached to the washing and dewatering tub, When the washing water is supplied from above the partition body while rotating the spin tub, the washing water can be efficiently supplied to the laundry.

According to the eleventh aspect of the present invention,
Since the hole of the partition body is formed long in the radial direction, when the partition body is attached to the washing and dewatering tub and the washing water is supplied from above the partition body while rotating the washing and dewatering tub, the laundry is efficiently supplied to the laundry. Washing water can be supplied.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view of a washing machine according to a first embodiment of the present invention.

FIG. 2 is an enlarged plan view of a partition body of the washing machine.

FIG. 3A is a perspective view of a partition body of the washing machine in a natural state. FIG. 3B is a perspective view of the partition body of the washing machine in a bent state.

FIG. 4 is a partially cutaway perspective view showing a process of attaching a partition body of the washing machine to a washing and dewatering tub.

FIG. 5 is an operation time chart of main parts of the washing machine.

FIG. 6 is a plan view of a partition body of a washing machine according to a second embodiment of the present invention.

FIG. 7 is a longitudinal sectional view of a washing machine according to a third embodiment of the present invention.

FIG. 8 is a partially cutaway plan view showing a state in which a partition body of the washing machine is attached to a washing and spin-drying tub.

FIG. 9 is a plan view of a partition body of a washing machine according to a fourth embodiment of the present invention.

FIG. 10 is a plan view of a partition body of a washing machine according to a sixth embodiment of the present invention.

FIG. 11 is a longitudinal sectional view of a conventional washing machine.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Outer tub 3 Washing and dewatering tub 16 Partition body 17 Concave part 18 Convex part

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Yuko Omura 1006 Kazuma Kadoma, Kadoma-shi, Osaka Matsushita Electric Industrial Co., Ltd. F-term (reference) 3B155 AB02 BA08 BA15 BA29 BB02 BB08 CA05 CB06 DA06 DA10

Claims (11)

[Claims] 1. A washing and dewatering tub rotatably provided in an outer tub, and a partition disposed so as to cover laundry put into the washing and dehydration tub from above, wherein the partition is ,
A washing machine which is made of a flexible material, has a peripheral edge which is uneven in the radial direction, and has a projection which can be locked at an upper portion in the washing and dewatering tub. 2. The washing machine according to claim 1, wherein the partition has a large number of holes and supplies washing water from above to the washing and dewatering tub.
The washing machine as described. 3. The washing machine according to claim 1, wherein a minimum diameter portion of the concave portion of the partition body substantially corresponds to an inner diameter portion of an annular balancer provided on an upper portion of the washing and dewatering tub. 4. The washing machine according to claim 1, wherein the shape of the concave portion of the partition body substantially corresponds to the shape of the convex portion extending in the longitudinal direction inside the washing and dewatering tub. 5. The washing machine according to claim 1, wherein the projection of the partition body is in contact with or close to an inner surface of the washing and dewatering tub. 6. The washing machine according to any one of claims 1 to 5, wherein the partition body has a peripheral portion thicker than a central portion, and a concave portion and a convex portion are provided on the peripheral portion. . 7. The washing machine according to claim 6, wherein a radial length of the peripheral portion of the partition body is such that a length of the convex portion is longer than a length of the concave portion. 8. The washing machine according to claim 1, wherein the number of the concave portions of the partition body is an integral multiple of four. 9. The washing machine according to claim 1, wherein holes are provided in the partition so that the opening density gradually increases from the center side toward the outer periphery. 10. The partitioning body according to claim 1, wherein a plurality of holes distributed substantially spirally in a direction opposite to a rotation direction of the washing and dewatering tub from the center side to the outer periphery are provided in the partitioning body. The washing machine according to any one of the preceding claims. 11. The washing machine according to claim 2, wherein the hole of the partition body is formed long in the radial direction.