JPH07136376A - Spinning/washing machine - Google Patents

Abstract

PURPOSE:To improve the spinning performance, draining performance, waste thread trapping performance, and washing performance and improve the assembling property by providing a tub having a spinning opening section only at the upper part, storing water only in this tub for washing, rotating the tub, and lifting water for spinning through the spinning opening section. CONSTITUTION:A nearly cylindrical metal inner basket 21 having many drain holes 24 on the peripheral wall is arranged in a tub 8 near the inner periphery of the tub 8, and a lift passage and a drain passage for spinning and a circulating passage for trapping waste threads are secured between the tub 8 and the inner basket 21. The metal basket 21 can withstand the high rotation at the time of spinning. The lower end section of the inner basket 21 is inserted into a groove section formed and fixed on the tub 8.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a water washing machine having a water-saving tub.

[0002]

2. Description of the Related Art Conventionally, in a washing machine for combined use of dehydration,
A water-saving type tank is provided. In this case, the tank has an opening for dehydration only in the upper part, and water is stored only inside the tank and is not stored outside, and washing is performed, and then the tank is rotated to pump water. The dehydration opening is used for dehydration.

In this case, however, in order to increase the dehydration rate, the tank is formed in a tapered shape in which the diameter gradually increases from the lower part to the upper part to improve the pumping performance. Further, a drainage port is formed at the bottom of the tank, and when draining, the drainage port is used. In addition, a water passage is formed on the circumferential side of the tank, and the agitator provided on the inner bottom of the tank in this water passage circulates the water in the tank by discharging water by the back blade during washing. The thread waste is caught through a thread waste filter provided at the tip of the.

[0004]

The conventional ones have the following drawbacks. A. At the time of dehydration, the laundry was pressed against the inner peripheral surface of the tub by the centrifugal force generated by rotating the tub, so that the passage of water rising up the inner peripheral surface of the tub was blocked and the dehydration was not performed efficiently. . B. The tank is generally made of plastic, and due to its low mechanical strength, it was not possible to sufficiently increase the number of rotations of dehydration, and therefore sufficient dehydration performance could not be obtained.

C. At the time of draining, the laundry prevented the water from flowing out of the tub, so that the water could not be drained efficiently. D. Even during washing, the circulation of water circulated by the back blades of the agitator was obstructed by the laundry, so that the lint could not be captured efficiently. E. At the time of washing, the amount of water flowing out from the dehydration opening of the tub was not so small that the amount of water in the tub was insufficient, and the laundry was easily damaged. F. At the time of dehydration, the laundry rises on the inner peripheral surface that is inclined to the upper part of the tub, which easily causes an unbalanced rotation load,
It was easy to cause abnormal vibration of the tank.

The present invention has been made in view of the above circumstances. Therefore, a first object of the present invention is to provide a washing machine for combined use of dehydration, which enables efficient and sufficient dehydration. A second object of the present invention is to provide a washing machine for combined use of dehydration, which enables efficient drainage. A third object of the present invention is to provide a washing machine for combined use of dehydration, which can efficiently capture lint. A fourth object of the present invention is to provide a combined washing machine for dehydration, which allows washing without reducing the amount of water. A fifth object of the present invention is to provide a washing machine for combined use of dehydration that enables effective washing. A sixth object of the present invention is to provide a washing machine for combined use of dehydration, which enables well-balanced dehydration.

A seventh object of the present invention is to efficiently dehydrate,
In addition, it is an object of the present invention to provide a washing machine for combined use of dehydration, which is capable of sufficiently improving the productivity and assembling property, but at the same time, can secure the volume and solve the problem of thread waste adhesion. An eighth object of the present invention is to
It is an object of the present invention to provide a washing machine for combined use of dehydration, which enables efficient and sufficient dehydration while ensuring strength. A ninth object of the present invention is to provide a washing machine for combined use of dehydration, which enables efficient and sufficient dehydration, but can reduce damage to the laundry.

[0008]

In order to achieve the above-mentioned object, in the washing machine for combined use of dehydration of the present invention, a large number of substantially cylindrical cylindrical walls are provided inside a tank having an opening for dehydration only in the upper part. It is characterized in that an inner metal basket having water passage holes is arranged close to the inner peripheral surface of the tank.

The upper end and the lower end of the inner basket may be fixed to the tank. Further, it is preferable that the tank mounting plate on which the tank is mounted and the inner basket have a connection relationship. Further, the upper end of the inner basket may be fixed to the tank together with the balance ring.

On the other hand, between the inner basket and the drainage port of the tank, it is preferable to have a bottom cover for communicating the space between the inner basket and the tank with the drainage port of the tank. In addition, a space between the inner basket and the tank is provided between the inner basket and the water absorption section on the back side of the stirring body that discharges water into the water passage for catching lint provided on the peripheral side of the tank. It is preferable to have a bottom cover that communicates with the water absorbing portion. The bottom cover may be provided separately from the inner basket.

Further, it is preferable that a large number of water passage holes in the inner basket are formed in the lower portion. Further, the water passage hole of the inner basket may be formed by squeezing from the inside to the outside. The inner basket preferably has a bulging portion that bulges outward from the inner side and forms a gap between the inner basket and the inner peripheral surface of the tank. It is preferable that the bulging portions of the inner basket are vertically short and long and alternately formed in the circumferential direction. In addition, the diameter of the inner basket is preferably the same from the lower end to the upper end, or smaller on the upper end side than on the lower end side.

On the other hand, it is preferable that the lower end portion of the inner basket is fitted and fixed in the groove portion formed in the tank. or,
It is preferable that a folded-back portion is formed at the lower end portion of the inner basket, and the folded-back portion is fitted and fixed in the groove portion of the tank. Further, it is preferable to form a concave portion, which is located outside the lower end portion of the inner basket, in the portion of the tank in which the groove portion is formed and which communicates the space between the inner basket and the tank downward. A communication hole may be formed above the lower end of the inner basket so as to communicate the recess of the tank and the space between the inner basket and the tank to the inner side of the inner basket. Then, a step portion that protrudes inward and contacts the upper edge of the bottom cover may be formed in a portion above the lower end portion of the inner basket.

[0013]

According to the above-mentioned means, the inner basket secures an ascending passage for dehydration between the inner basket and the outer peripheral surface of the tank,
It can be dehydrated smoothly without being hindered by laundry.
In addition, since the inner basket is made of metal and has excellent mechanical strength, it receives the centrifugal force of folding in the dehydration rotation, and can withstand high rotation.

Particularly, in the case where the upper end portion and the lower end portion of the inner basket are fixed to the tank, the proof stress of the inner basket against high rotation can be increased. Further, in the case where the tank mounting plate on which the tank is mounted and the inner basket are in a connected relationship, the proof strength of the inner basket against high rotation can be further increased. Further, in the case where the upper end of the inner basket is fixed to the tank together with the balance ring, it is possible not only to increase the proof stress of the upper portion of the inner basket against high rotation, but also to fix the upper end of the inner basket to the tank for mounting the balance ring. You can even share parts.

On the other hand, in the case of having the bottom cover between the inner basket and the drainage port of the tank for communicating the space between the inner basket and the tank with the drainage port of the tank, the outer cover of the inner basket is thereby provided. In addition, a drainage passage can be secured below the bottom cover, which allows smooth drainage without being obstructed by laundry. In addition, a space between the inner basket and the tank is provided between the inner basket and the water absorption section on the back side of the stirring body that discharges water into the water passage for catching lint provided on the peripheral side of the tank. With the one having a bottom cover that communicates with the water absorbing portion, a circulation water channel can be secured outside the inner basket and below the bottom cover, so that the water can be smoothly circulated without being disturbed by the laundry and the lint can be efficiently collected. Will be able to capture. In this case, if the bottom cover is provided separately from the inner basket, the inner basket can be manufactured by simply rolling the metal plates and joining them together.

Further, if the inner basket has a large number of water passage holes formed in the lower portion, it is possible to reduce water during washing from reaching the dewatering opening of the tub from inside the inner basket. Further, in the case where the water passage hole of the inner basket is squeezed out from the inside to the outside, the laundry can be prevented from being caught in the water passage hole and damaged.

Further, in the case where the inner basket has the bulging portion which bulges outward from the inside to form a gap between the inner basket and the inner peripheral surface of the tank, the ascending passage for dehydration can be more reliably provided. Can be formed and secured. In this case, when the bulging portion of the inner basket is formed by alternately forming a short bulge and a long bulge in the vertical direction in the circumferential direction, the water flow and the cloth circumference at the time of washing can be complicated. In addition, if the diameter of the inner basket is the same from the lower end to the upper end, or if the upper end side is smaller than the lower end side, the rise of the laundry at the time of dehydration can be effectively suppressed.

On the other hand, in the case where the lower end of the inner basket is fitted and fixed in the groove formed in the tank, as compared with the case where the inner basket is fixed by screwing or the like, the inner basket is provided with a screwing flange or the like. It is not necessary to form it, and it is possible to avoid a substantial reduction in volume due to the screwed portion or the like. Moreover, in this case, it is not necessary to perform a screwing operation at the bottom of the tank, and the lower end portion of the inner basket is not exposed, so that the lint can be prevented from adhering to the portion. Further, in the case where a folded-back portion is formed at the lower end portion of the inner basket and the folded-back portion is fitted into the groove portion of the tank and fixed,
It is possible to prevent the lower end of the inner basket from being caught by an edge or the like at the time of fitting, and moreover, the strength of the lower end of the inner basket can be increased by the folded portion.

Further, in the case where a groove is formed in the tank, a concave portion located outside the lower end portion of the inner basket and communicating the space between the inner basket and the tank downward is formed. It is possible to prevent the lower end portion of the basket from being fitted into the groove portion of the tank and left closed, and to secure a drainage passage from the void portion between the inner basket and the tank. In addition, in the part above the lower end of the inner basket,
In the case where a communication hole that connects the recess of the tank and the space between the inner basket and the tank to the inner side of the inner basket is formed,
The drainage passage from the gap between the inner basket and the tank can be ensured by the recess and the communication hole so that the drainage passage can flow more easily.

In the case where a step portion that protrudes inward and contacts the upper edge of the bottom cover is formed in a portion above the lower end portion of the inner basket, the laundry is bited into the portion where the inner basket and the bottom cover contact. This can be prevented by the step.

[0021]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the present invention will be described below with reference to FIGS. First, FIG. 2 shows the entire structure of the washing machine for combined use of dehydration, in which a trough 2 is arranged in an outer box 1 and elastically supported by a plurality of (only one is shown) suspension mechanisms 3. A drive mechanism 5 having a motor 4 as a main component is disposed at the outer lower portion of the trough 2, and a dehydration shaft 6 that is rotated in the drive mechanism 5 during dehydration is thrust into the bottom of the trough 2 to The tank mounting board 7 is fixed to the upper end portion.

A tank 8 is provided in the tub 2, and the tank 8 is made of plastic and has a taper shape in which the diameter gradually increases from the lower part to the upper part, and the upper end part thereof is formed. In detail, a large number of holes 9 which are the dehydration openings shown in FIG. 1 are formed in a horizontal row. Further, a drainage port 10 is formed at the center of the bottom of the tank 8, and the drainage port 10 is aligned with the water passage holes 11 formed in the center of the tank mounting board 7 to fit the tank mounting board. The bath 8 is placed on the base 7, and they are fixed thereto by a plurality of screws 12.

As shown in FIG. 3, the water hole 11 of the tank mounting board 7 is provided with an air trap 16 for detecting the water level of the trough 2 via a seal fitting 13, a seal 14 and a conduction cover 15.
Is communicated with the first drain port 17 adjacent to
The first drain port 17 and the air trap 16 are in communication with a drain hose 19 via a drain valve 18 shown in FIG. In addition, a second drain port 20 that directly communicates with the drain hose 19 (omitted) is formed in the trough 2 outside the conduction cover 15 (on the left side in FIG. 2).

An inner basket 21 is arranged in the tank 8 for them. The inner basket 21 is made of metal, and as shown in detail in FIG. 4, by rolling a metal plate such as a stainless steel plate and crimping both ends thereof, the same diameter from the lower end to the upper end, Alternatively, the upper end side is formed into a generally cylindrical shape having a smaller diameter than the lower end side, and bulging portions 22 and 23 that bulge outward from the inner side are formed on the peripheral wall, and at the other portions, A large number of water passage holes 24 are formed. In this case, the bulging portions 22 and 23 include a plurality of short ones 22 at the top and bottom and one long one 23.
Each of them is formed so as to alternately line up in the circumferential direction,
Further, a large number of water passage holes 24 are formed in the lower portion of the tank 8 and are formed by squeezing from the inside to the outside.

With this structure, the inner basket 21 is further close to the inner peripheral surface of the tank 8 as shown in FIG. 1, and the tip surfaces of the bulging portions 22 and 23 are brought into contact with the inner peripheral surface of the tank 8. A void portion 25 is formed between the inner peripheral surface of the tank 8 and the inner peripheral surface of the tank 8. Further, the upper end of the inner basket 21 is fixed to the tank 8 by fixing it together with the balance ring 26 with a screw 27 at a portion immediately above the hole 9 of the tank 8, and the lower end is fixed to the tank mounting plate 7 at the bottom of the tank 8. The inner boss 29, which is formed coaxially with the outer boss 28 that is fixed, is fixed to the inner boss 29 with screws 30.
It is also fixed to the tank mounting board 7 at the same time.

In addition, the inner basket 2 extends from the lower end of the inner basket 21 to the drainage port 10 of the tank 8.
A bottom cover 31 made of, for example, plastic, which is separate from 1, is provided. This bottom cover 31 has a plurality of screws 3 attached to the tank 8.
It is fixed by 2 and has a space 33 between the bottom of the tank 8 and the space 33 between the inner basket 21 and the drain of the tank 8. Tank 8
It is connected to the drainage port 10 of.

Here, the washing shaft 34, which is rotated at the time of washing, projects from the spin-drying shaft 6 into the bottom of the tub 8.
An agitator 35 is fixed to the upper end portion thereof. This stirrer 3
5 has a front blade 36 for generating a washing water flow on the upper surface and a back blade 37 for generating a circulating water flow for catching lint on the lower back surface. The space portion 33 formed by the bottom cover 31 is communicated with the center side water absorbing portion 38, so that the space 25 between the inner basket 21 and the drainage port of the tank 8 is communicated with the back side water absorbing portion 38 of the stirring body 35. There is.

As shown in FIG. 2, a water channel cover 39 is attached to the inner side of the inner basket 21 on the peripheral side of the tank 8 from the inner bottom of the tank 8 to the balance ring 26.
A water passage 40 extending to a part is formed, and the outer peripheral portion of the water passage 40 is exposed so that the back blade 37 of the stirring body 35 discharges water. A thread waste filter 41 is attached to the upper end of the water passage 40.

By the way, in the case of the configuration as described above,
Since the hole 9 as a dehydration opening exists only in the upper part of the tub 8, water is stored only in the tub 8 for washing and washing is performed, and on the other hand, during dewatering, the tub 8 is rotated to pump and draw water. Although it is the same as the conventional one, the inner basket 21 having a substantially cylindrical shape is disposed inside the tank 8 in close proximity to the inner peripheral surface of the tank 8. Between the basket 21 and the inner peripheral surface of the tub 8, an ascending passage (void 25) for dehydration that emerges from the water passage hole 24 of the inner basket 21 is ensured. Even under the condition of being pressed against 21, the laundry can be smoothly dehydrated without being hindered by the laundry and the dehydration efficiency can be improved.

Further, since the inner basket 21 is made of metal and has excellent mechanical strength, it receives the centrifugal force of the spin of the dehydration rotation and can withstand high rotation, so that the rotation speed of the dehydration can be sufficiently increased. Thus, sufficient dehydration performance can be obtained. Particularly, in this case, by fixing the upper end portion and the lower end portion of the inner basket 21 to the tank 8, it is possible to increase the yield strength of the inner basket 21 against high rotation, and thus to further increase the rotation speed of dehydration. As a result, more sufficient dehydration performance can be obtained.

Further, since the tank mounting board 7 and the inner basket 21 are connected to each other, the yield strength of the inner basket 21 against high rotation can be further increased, and therefore, the number of rotations of dehydration can be further increased. Therefore, more sufficient dehydration performance can be obtained. Further, by fixing the upper end portion of the inner basket 21 to the tank 8 together with the balance ring 26,
Not only the proof stress of the upper portion of the inner basket 21 against high rotation can be increased, but also the inner basket 2 for the tank 8 can be increased.
(1) The upper end can be fixed even by using the screw 27, which is a component for attaching the balance ring 26, and the rational use of the component can be achieved.

On the other hand, between the inner basket 21 and the drainage port 10 of the tank 8, a bottom cover 31 for communicating the gap 25 between the inner basket 21 and the bath 8 with the drainage port 10 of the tank 8.
By providing the drainage passage, a drainage passage can be secured outside the inner basket 21 and below the bottom cover 31. Therefore, drainage can be smoothly performed without being disturbed by the laundry, and drainage efficiency can be improved. You can

Further, by the bottom cover 31, a water passage 40 for catching yarn waste, which is provided on the inner side of the inner basket 21 and the tank 8, is provided.
The gap 25 between the inner basket 21 and the tank 8 is made to communicate with the back side water-absorbing portion 38 of the stirring body 35 that discharges water to the outside, so that the thread waste is provided outside the inner basket 21 and below the bottom cover 31. It is possible to secure a circulation channel for capture,
Therefore, the circulation of the water can be smoothly performed without being disturbed by the laundry, and the efficiency of capturing the lint can be improved. In this case, since the bottom cover 31 is provided separately from the inner basket 21, the inner basket 21 can be manufactured by simply rolling the metal plates and joining them together, which improves the manufacturability. be able to.

Further, by forming a large number of water passage holes 24 of the inner basket 21 in the lower portion, it is possible to reduce water during washing from reaching the hole 9 portion of the tub 8 from the inside basket 21,
Since the amount of water flowing out from the hole 9 can be reduced, washing can be performed without reducing the amount of water, and damage to the laundry can be reduced.
Further, since the water passage hole 24 of the inner basket 21 is formed by squeezing out from the inside to the outside, the laundry can pass through the water passage hole 24.
It is possible to prevent the clothes from being scratched and scratched, and the damage to the laundry can be further reduced.

The inner basket 21 has the bulging portions 22 and 23 which bulge outward from the inner side and form a space 25 between the inner basket 21 and the inner peripheral surface of the tank 8.
It is possible to surely form and secure the ascending passage for dehydration,
The improvement of dehydration efficiency can be achieved more reliably. In this case, the bulging part of the inner basket 21 is short vertically
By alternately forming 2 and the long one 23 in the circumferential direction, the water flow and the cloth circumference at the time of washing can be complicated, and the washing effect can be improved.

In addition, the diameter of the inner basket 21 is the same from the lower end to the upper end, or the upper end side is smaller than the lower end side, so that the rise of the laundry at the time of dehydration can be effectively suppressed. Therefore, it is possible to perform dewatering in good balance without generating an unbalanced load of rotation and thus with less vibration.

The upper end and the lower end of the inner basket 21 are not directly attached to the tank 8, but are fixed to the components such as the balance ring 26 and the tank mounting plate 7 provided in the tank 8 that are fixed to the tank 8. By doing so, it may be indirectly fixed to the tank 8. Further, as is apparent from this, the lower end portion of the inner basket 21 may be directly fixed to the tank mounting plate 7 without the tank 8 so as to be connected. Further, if the manufacturability of the inner basket 21 is not a priority, the bottom cover 31 may be formed integrally with the inner basket 21.

In contrast to the above, FIGS. 5 to 7 show a second embodiment of the present invention. Particularly, the lower end and the upper end of the inner basket 21 are both formed straight, and the lower end is Tank 8
It is shown that the groove 42 formed in the lower part of the above is fitted and fixed, and the upper end is adhered and fixed to the balance ring 26. In this case, outward folding portions 43 and 44 are formed at the lower end portion and the upper end portion of the inner basket 21, respectively, and the lower end portion is fixed by fitting the folding portion 43 into the groove portion 42 of the tank 8. ing.

Further, in the portion of the tank 8 where the groove portion 42 is formed, a plurality of recesses 45 located outside the lower end portion of the inner basket 21 are provided at predetermined intervals in the circumferential direction along the groove portion 42. Are formed, and due to the respective recesses 45,
A space 25 between the inner basket 21 and the tank 8 is communicated downward. Further, a large number of communication holes 46 are formed in a row in the upper part of the lower portion of the inner basket 21, and the communication holes 46 allow the recess 45 and the void 25 to communicate with the inner side of the inner basket 21. ing.

In addition, a step portion 47 projecting inward is formed at a portion above the lower end portion of the inner basket 21, and the step portion 47 is brought into contact with the upper edge of the bottom cover 48, particularly in close contact with it. I am letting you. Although the bottom cover 48 in this case functions in the same manner as the above-mentioned bottom cover 31, the attachment is performed by attaching the claw portion 50 to the engagement hole 49 formed in the tank 8 to attach the bottom cover 48 to the tank 8. The screw 52 is fixed to the hole 51.

In the case where the lower end portion of the inner basket 21 is fitted and fixed in the groove portion 42 formed in the tank 8 like this, the inner basket 21 is fixed to the inner basket 21 as compared with the case where the lower portion is fixed by the screw 30 described above. It is not necessary to form a flange portion for screwing, the shape can be simplified, and the manufacturability can be improved. Further, in this case, the bottom cover 48 does not need to have an inward "escape" shape such as avoiding the screw 30 stopper portion, and can be made sufficiently close to the inner surface of the tank 8, and accordingly, the volume thereof is increased. Can be largely secured.

Further, in terms of work, there is no need for screwing work at the bottom of the tank 8 and the lower end of the inner basket 21 can be simply fitted into the groove 42 of the tank 8 to improve the assemblability. be able to. In addition, since the lower end portion of the inner basket 21 is housed in the groove portion 42 and is not exposed, it is possible to avoid the attachment of the thread waste to the portion.

In particular, a folded-back portion 43 is formed at the lower end of the inner basket 21, and the folded-back portion 43 is fitted into the groove portion 42 of the tank 8 to be fixed. It is possible to prevent the lower end portion from being caught by an edge or the like, and it is possible to further improve the assembling property. Further, since the folded-back portion 43 can increase the strength of the lower end portion of the inner basket 21, it is effective in increasing the number of rotations of dehydration, and more sufficient dehydration performance can be obtained, and at the time of fitting. Deformation can be prevented, fitting can be further facilitated, and assemblability can be further improved.

Then, in the portion where the groove portion 42 of the tank 8 is formed, a concave portion 45 located outside the lower end portion of the inner basket 21 and allowing the space 25 between the inner basket 21 and the tank 8 to communicate downward. By forming the inner basket 2
It is possible to prevent the lower end portion of 1 from being fitted into the groove portion 42 and being left closed by the recessed portion 45, and a drainage passage from the gap portion 25 between the inner basket 21 and the tank 8 can be secured thereby. The effect of smooth drainage without being hindered by the laundry is not impaired, and the drainage efficiency can be improved as described above.

In this case, the inner basket 21 is further formed with a communication hole 46 in the upper portion of the lower end of the inner basket 21 for communicating the recess 45 and the void 25 of the tank 8 with the inner side of the inner basket 21. 2 between the chamber and the tank 8
It is possible to secure the drainage passage from 5 through the recess 45 and the communication hole 46 so that the drainage passage can be more easily flowed, the drainage efficiency can be further improved, and clogging of thread waste in the drainage passage can be prevented more reliably. it can.

A step portion 47 is formed at a portion above the lower end portion of the inner basket 21 so as to project inward and come into contact with the upper edge of the bottom cover 48, so that the portion where the inner basket 21 and the bottom cover 48 come into contact with each other. The stepped portion 47 can prevent the laundry from being bitten into, and damage to the laundry can be reduced. In addition, the present invention is not limited to the embodiments described above and shown in the drawings, and may be appropriately modified and implemented without departing from the scope of the invention.

[0047]

The washing machine for combined use of dehydration of the present invention is as described above, and has the following effects. Firstly, in a tank provided with a dehydration opening only in the upper part, water is stored in the tank for washing and the dehydration opening is rotated by rotating the tank, Inside the tank, an almost basket-shaped metal inner basket with a large number of water passage holes on the peripheral wall is placed close to the inner peripheral surface of the tank to ensure a rising passage for dehydration in the tank. As a result, the dehydration efficiency can be improved, and at the same time, it can endure high rotation during dehydration, so that sufficient dehydration performance can be obtained.

Secondly, by fixing the upper end portion and the lower end portion of the inner basket to the tank, it is possible to increase the yield strength of the inner basket against high rotation and obtain a more sufficient dehydrating performance. it can. Thirdly, since the tank mounting plate having the tank mounted thereon and the inner basket are connected to each other, the yield strength of the inner basket against high rotation can be further increased, and more sufficient dehydration performance can be obtained.

Fourth, by fixing the upper end of the inner basket to the tank together with the balance ring, it is possible to increase the proof stress of the upper portion of the inner basket against high rotation and also to fix the upper end of the inner basket to the tank. Even the parts for mounting the balance ring can be shared, and rational use of the parts can be achieved. Fifthly, by providing a bottom cover between the inner basket and the drainage port of the tank, which communicates the space between the inner basket and the tank with the drainage port of the tank, the outer cover and the bottom cover of the inner basket are provided. A drainage passage can be secured below the drainage, and drainage can be smoothly performed without being hindered by laundry, and drainage efficiency can be improved.

Sixth, a space between the inner basket and the tank is provided between the inner basket and the water absorbing section on the back side of the stirring body which discharges water into the thread waste catching water passage provided on the peripheral side of the tank. By providing a bottom cover that communicates with the water absorption section on the back side of the agitator, a circulation water channel for catching lint can be secured outside the inner basket and below the bottom cover, and the water circulation can also be used for laundry. It can be made smooth without being hindered, and the efficiency of capturing lint can be improved. Seventh, since the bottom cover is provided separately from the inner basket, the inner basket can be manufactured by simply rolling the metal plates and joining them together, thereby improving the manufacturability. You can

Eighth, by forming a large number of water holes in the inner basket in the lower portion, it is possible to reduce the amount of water at the time of washing from flowing from inside the inner basket to the dehydrating opening of the tub and to reduce the amount of water. You can wash without reducing the amount of damage to the laundry. Ninth, since the water passage hole of the inner basket is formed by squeezing out from the inside to the outside, the laundry can be prevented from being caught in the water passage hole and being damaged, and further damage to the laundry can be prevented. Can be reduced.

Tenthly, since the inner basket is provided with a bulging portion that bulges outward from the inner side to form a gap between the inner basket and the inner peripheral surface of the tank, the ascending passage for dehydration can be more reliable. Formation can be ensured, and the improvement of dehydration efficiency can be achieved more reliably. Eleventhly, the short bulge and the long bulge of the inner basket are alternately formed in the up and down direction in the circumferential direction, so that the water flow and cloth circumference at the time of washing can be complicated and the washing effect is improved. You can

Twelfth, by setting the diameter of the inner basket to be the same from the lower end to the upper end or to make the upper end side smaller than the lower end side, it is possible to effectively suppress the rise of the laundry at the time of dehydration. As a result, dehydration can be performed without generating an unbalanced rotation load and generating less vibration. First
By fitting the lower end of the inner basket into the groove formed in the tank and fixing the inner basket, the shape of the inner basket can be simplified, the manufacturability can be improved, and a large volume can be secured. Moreover, the assembling property of the inner basket can be improved, and the thread waste can be prevented from adhering to the lower end portion of the inner basket.

Fourteenth, a folded-back portion is formed at the lower end portion of the inner basket, and the folded-back portion is fitted and fixed in the groove portion of the tank so that the lower end portion of the inner basket has an edge or the like when fitted. It is possible to avoid being caught in the inner basket and to further improve the assembling property, and it is possible to increase the strength of the lower end portion of the inner basket, which further contributes to the improvement of the dehydration performance and the assembling property.

Fifteenthly, in the portion of the tank in which the groove is formed, there is formed a concave portion located outside the lower end portion of the inner basket and communicating the space between the inner basket and the tank downward. This prevents the lower end of the inner basket from being left closed by being fitted into the groove, and it is possible to secure a drainage passage from the gap between the inner basket and the tank, improving drainage efficiency. Can be made.

Sixteenth, by forming a communication hole in the portion above the lower end portion of the inner basket, which communicates the recess of the tank and the gap between the inner basket and the tank to the inner side of the inner basket, The drainage passage from the gap between the basket and the tank can be more easily ensured by the concave portion and the communication hole thereof, and the drainage efficiency can be further improved, and clogging of lint in the drainage passage can be further improved. It can be surely prevented.

Seventeenth, since a step portion is formed above the lower end portion of the inner basket so as to project inward and come into contact with the upper edge of the bottom cover, the portion where the inner basket and the bottom cover come into contact with each other can be washed. It is possible to prevent the digging in by the stepped portion and reduce damage to the laundry.

[Brief description of drawings]

FIG. 1 is a vertical sectional view of a half portion of a main part showing an embodiment of the present invention.

[Fig. 2] Side view of the entire fracture

FIG. 3 is a vertical cross-sectional view of the other half of the main part

FIG. 4 is a cutaway perspective view of a single inner basket.

FIG. 5 is a view corresponding to FIG. 1 and showing a second embodiment of the present invention.

FIG. 6 is a partially enlarged view of FIG.

FIG. 7 is a partially enlarged view of FIG.

[Explanation of symbols]

7 is a tank mounting board, 8 is a tank, 9 is a hole (opening for dehydration), 10
Is a drainage port, 21 is an inner basket, 22 is a bulging part (shorter in the vertical direction), 23 is a bulging part (longer in the vertical direction), 24 is a water passage hole, 25 is a void part, 26 is a balance ring, 31 Is a bottom cover, 33 is a space part, 35 is an agitator, 38 is a back side water absorption part, 40 is a water passage, 42 is a groove part, 43 is a folded part, 4
5 is a recess, 46 is a communication hole, 47 is a step, and 48 is a bottom cover.

Claims (17)

[Claims] 1. A device comprising a tub having a dehydration opening only in the upper portion, storing water in the tub for washing, and rotating the tub to dehydrate from the dehydration opening. A washing machine for combined use of dehydration, characterized in that a substantially cylindrical inner basket made of metal having a large number of water passage holes in its peripheral wall is disposed close to the inner peripheral surface of the tub inside the tub. 2. The washing machine for combined use of dehydration according to claim 1, wherein the upper end and the lower end of the inner basket are fixed to the tub. 3. The washing machine for combined use of dehydration according to claim 2, wherein the tub mounting plate having the tub attached thereto and the inner basket are connected to each other. 4. The washing machine for combined use of dehydration according to claim 2, wherein the upper end of the inner basket is fixed to the tub together with the balance ring. 5. The dewatering device according to claim 1, further comprising a bottom cover between the inner basket and the drainage port of the tank, the bottom cover communicating the space between the inner basket and the tank with the drainage port of the tank. Combined washing machine. 6. A gap between the inner basket and the tank is agitated between the inner basket and the back side water absorbing portion of the stirring body that discharges water into a thread waste catching water passage provided on the peripheral side portion of the tank. The washing machine for combined use of dehydration according to claim 1, further comprising a bottom cover which communicates with the water absorption section on the back side of the body. 7. The washing machine for combined dehydration according to claim 5, wherein the bottom cover is provided separately from the inner basket. 8. The washing machine for combined use of dehydration according to claim 1, wherein a large number of water passage holes of the inner basket are formed in the lower portion. 9. The washing machine for combined use of dehydration according to claim 1, wherein the water passage hole of the inner basket is formed by squeezing from the inside to the outside. 10. The laundry for dehydration and washing according to claim 1, wherein the inner basket has a bulging portion that bulges outward from the inside to form a gap between the inner basket and the inner peripheral surface of the tub. Machine. 11. The washing machine for combined use of dewatering according to claim 10, wherein the bulging portion of the inner basket is vertically formed alternately with short ones and long ones in the circumferential direction. 12. The washing machine for combined use of dehydration according to claim 1, wherein the diameter of the inner basket is the same from the lower end to the upper end, or the upper end is smaller than the lower end. 13. A lower end portion of the inner basket is fitted and fixed in a groove portion formed in the tank.
Washing machine for combined use of dehydration. 14. The washing machine for combined use of dehydration according to claim 13, wherein a folded-back portion is formed at a lower end portion of the inner basket, and the folded-back portion is fitted and fixed in a groove portion of the tub. 15. A recessed portion, which is located outside a lower end portion of the inner basket and communicates a void portion between the inner basket and the tank downwardly, is formed in a grooved portion of the tank. The combined washing machine for dehydration according to claim 13. 16. A portion above a lower end portion of the inner basket,
The washing machine for combined use of dehydration according to claim 15, characterized in that a communication hole for communicating the recess of the tub and the gap between the inner basket and the tub to the inner side of the inner basket is formed. 17. A portion above the lower end of the inner basket,
The washing machine for combined use of dehydration according to claim 7, wherein a step portion is formed so as to project inward and come into contact with an upper edge of the bottom cover.