KR100339387B1 - Washing machine having a separable tub - Google Patents

Abstract

The present invention relates to a washing machine, a plurality of drainage holes are formed, and the laundry tank inside which can hold laundry and is retractable to the inside of the inner tank, and rotates in conjunction with the washing tank installed therein as the inner tank rotates. A washing tank including a fixing means for fixing the washing tank to the inside of the inner tank so as to be able to be removed, and a separation preventing means for preventing the washing tank from being separated out of the inner tank, the washing tank being detachably installed in the inner tank. When the laundry is complete, the laundry can be pulled out of the washing machine while the laundry is in the washing tank, and the laundry can be taken out. When not washing, the washing tank can be used for storing the laundry. This would be possible.

Description

Washing machine having a separable tub}

The present invention relates to a washing machine, and more particularly, to separate and take out a washing tank in which laundry is washed, rinsed, and dehydrated from the inside to the outside of the washing machine.

Recently, not only washing performance but also convenience in using a washing machine for home use has become a very important product purchase factor. Accordingly, product development for increasing convenience in use has been accelerated.

The drum-type washing machine is a method of washing by using the rotating power of the inner tank and the laundry by receiving the driving force of the motor while the detergent, the washing water, and the laundry are put in the inner tank. And tapping and rubbing can have a laundry effect, but there is an inconvenience in the input and withdrawal of the laundry has been developed to improve the technology.

Hereinafter, the conventional drum type washing machines will be described with reference to FIGS. 1 to 3.

1 illustrates a general drum type washing machine, wherein an outer tub 101 is installed inside the case 100, and an inner tub 102 is rotatably installed inside the outer tub 101.

A motor 103 is installed below the outer tub 101, and a driving pulley 104 is connected to an output shaft of the motor 103.

On the other hand, an input shaft is connected to the rear of the inner tub 102 (upper right side in the drawing), and a driven pulley 105 is installed on the input shaft.

In addition, the driven pulley 105 connected to the inner tub 102 and the drive pulley 104 connected to the motor 103 are connected by a belt 106 which is a power transmission element.

A door 107 is installed at the front of the case 100, and a gasket 108 is installed between the door 107 and the outer tub 101.

On the other hand, a hanging spring 109 (hanging spring) through which the outer tub 101 is suspended is installed between the inner side of the upper surface of the case 100 and the upper outer surface of the outer tub 101, and the lower side of the outer circumferential surface of the outer tub 101 is provided. Between the lower surface of the case 100 and the damper 110 for damping the vibration of the outer tub 101 generated during dehydration is provided.

In the conventional drum-type washing machine configured as described above, since the door 107 is positioned at the front center of the case 100 and the inner tub 102 is horizontally installed, the laundry is introduced into the inner tub 102 or withdrawn from the inner tub 102. When the user wants to squat or bend his back, the user needs to reach into the inner tub 102, thereby causing inconvenience.

That is, the general drum type washing machine shown in FIG. 1 has a disadvantage in that the user's operation becomes very inconvenient in the input and withdrawal of the laundry when the washing machine is used, thereby lowering the reliability of the product.

On the other hand, the drum type washing machine shown in Figure 2 is to be able to eliminate the inconvenience as described above, the inner side of the case 200 in order to facilitate the loading and withdrawal of laundry into the inner tank 201 The outer tub 202 and the inner tub 201 are installed in an inclined state by a predetermined angle with respect to the horizontal plane by the plurality of hanging springs 203 fixed to the horizontal spring.

However, the inclined drum type washing machine is somewhat more convenient than the drum washing machine shown in FIG. 1 at the time of loading and withdrawing the laundry, but when the user takes out the laundry located on the bottom of the inner tank 201, the user is inside the inner tank 201. The inconvenience of having to extend his arms deeply was not resolved.

The inclined drum type washing machine is described in detail in U.S.A Patent No. 5,661,914 and U.S.A Patent No. 5,881,576.

Meanwhile, the washing machine illustrated in FIG. 3 relates to a washing machine in which a pulsator type and a drum type are combined, such that a rotating shaft 302 forming a center of rotation of the outer tub in the vertical and horizontal directions is provided at a central portion of the outer tub 300 in the vertical direction. On the other hand, it is characterized in that the drive means 303 is connected to the rotary shaft on the outer surface of the outer tub so that the outer tub can be vertical or horizontal by driving the rotary shaft, which is a USA patent 5,327,603.

In the case of the combined washing machine having the above configuration, when the pulsator method is selected, washing and dehydration is performed by rotation of the pulsator 304 or the inner tank 301 in a state where the outer tub is standing vertically, and the drum method is selected. In the inner tank 301 and the outer tank is laid horizontally by the rotation of the inner tank 301 is dried or washed and dehydration is made.

However, in the case of the above-mentioned combined washing machine, not only washing and dehydration should be performed for both the pulsator type and the drum type, but also the laundry should be freely put in and removed for both types, so that the door is not only the case 305 but also the outer tank ( It should also be attached.

Therefore, when using the washing machine in the drum method or the pulsator method, there was a need to open the door twice when the laundry was added and removed.

In other words, both drum and pulsator methods require opening both the doors mounted on the case 305 and the inner tank 301 to allow the loading and withdrawal of laundry, which is inconvenient when using a washing machine, and the total number of doors is four. The number will increase.

The present invention has been made in order to solve the above-mentioned conventional problems, the present invention can take out the laundry from the washing machine in the state in which the laundry is contained in the washing tank after the completion of the laundry, withdraw the laundry, if not washing It is an object of the present invention to provide a washing machine having a detachable washing tank which can be directly washed by inserting the washing tank inside the washing machine while storing the laundry.

1 is a side cross-sectional view showing an example of a conventional drum washing machine;

Figure 2 is a side cross-sectional view showing another example of a conventional drum washing machine;

Figure 3 is a side sectional view showing an example of a washing machine in which the conventional pulsator and the drum method is combined,

4 is an exploded perspective view showing a first embodiment of a washing machine according to the present invention;

5 is a cross-sectional view taken along the line A-A of FIG.

6 is an exploded perspective view showing main parts of a washing machine according to a second embodiment of the present invention;

7 is a sectional view showing the principal parts of a third embodiment of a washing machine according to the present invention;

8 is an enlarged perspective view of the lid of FIG. 7;

9 is a partially cutaway exploded perspective view showing a fourth embodiment of the washing machine according to the present invention.

* Description of the symbols for the main parts of the drawings *

1: case, 2: outer shell,

10: inner tank, 12,22: protrusions,

14, 24: recessed portion, 18: the first engaging portion,

20: washing tank, 30: fluid balancer,

32: protruding jaw, 45: locking member.

In order to achieve the object of the present invention, a plurality of drainage holes are formed and the laundry tank can contain laundry therein and is releasably installed in the inner tank, and the washing tank installed inside the tank as the inner tank rotates. A fixing means for fixing the washing tub to the inner side of the inner tub so as to be rotated in association therewith, and a separation preventing means for preventing the washing tub from being separated out of the inner tub so that the washing tub is detachably installed in the inner tub. A washing machine having a detachable laundry tub is provided.

Hereinafter, preferred embodiments of the washing machine according to the present invention will be described in detail with reference to the drawings.

The same components as in the prior art designate the same reference numerals and description thereof will be omitted.

Unlike the conventional washing machine according to the embodiments of the present invention, the washing tank is installed inside the inner tank and is directly washable.

More detailed description is as follows.

Figure 4 is an exploded perspective view showing a first embodiment of the washing machine according to the present invention, Figure 5 is a cross-sectional view taken along the line AA of Figure 4, the upper side of the case 1 forming the appearance of the washing machine as shown in the figure The door 3 is installed to be opened and closed, and a cylindrical outer tub 2 having an upper opening is installed inside the case 1.

And the lower side of the outer tub (2) is provided with a motor (7) and the drive shaft (8) of the motor (7) is installed so that a portion protrudes toward the inner bottom surface of the outer tub.

In addition, the upper end of the outer tub (2) is installed to be sealed to one side of the case (1) by the gasket (5).

In addition, an inner tub 10 having a smaller size than the outer tub 2 and having the same cylindrical shape is installed inside the outer tub 2, and a bottom surface of the inner tub 10 may include a driving shaft of the motor 7. 8) is rotatably installed.

On the other hand, the first engagement portion 18 is composed of a plurality of protrusions 12 and the concave portion 14 is formed on the side of the inner tank 10 and protruded or recessed by a predetermined interval alternately in and out along the periphery of the inner tank 10. Is formed in the vertical direction of the inner tank (10).

In addition, a plurality of drain holes 9 are formed in the side and bottom of the inner tank 10 so that washing water may be introduced or discharged.

The washing tank 20 is installed to be pulled out of the inner tank 10 so that the washing tank 20 is slightly smaller than the diameter of the inner tank 10 so that the washing tank 20 can be inserted into the inner tank 10. Has

And the washing tank 20 is formed in the same structure as the shape of the inner tank (10).

That is, the second engagement portion 28 includes a plurality of protrusions 22 and recesses 24 protruding or recessed by alternating inner and outer sides along the periphery of the washing tub 20 to the side of the washing tub 20. Is formed in the vertical direction of the washing tank 20.

In addition, the withdrawal handle 25 is formed on the upper inner surface of the protrusion 22 of the washing tub 20 to facilitate the withdrawal of the washing tub 20, and wash water may be introduced into or discharged from the side and bottom of the washing tub 20. A plurality of drain holes 9 are formed to be able to.

In addition, a plurality of locking members 45 are formed at a predetermined interval on the inner bottom edge of the washing tub 20 to protrude toward the center of the washing tub 20.

The reason for forming the catching member 45 is to prevent the laundry from being entangled by the centrifugal force at the bottom of the washing tub 20 by the centrifugal force at the same time, and at the same time appropriate impact on the laundry flowing with the washing water in the washing tub 20 To increase the washing effect.

On the other hand, the upper end of the inner tank 10 is provided with a fluid balancer 30 for correcting the balance of the inner tank 10 during rotation.

At this time, the upper surface of the fluid balancer 30 is provided with a projection jaw 32 at a predetermined interval, the projection jaw 32 is respectively installed at a position corresponding to the protrusion 22 of the washing tub 20 is the fluid The inner circumferential surface of the balancer 30 is installed in a structure that can protrude while sliding by a predetermined interval.

That is, the protruding jaw 32 is a separation preventing means for preventing the washing tub 20 from being separated from the inner tub 10 to the outside. The washing jaw 20 is inserted into the inner tub 10 and the protruding jaw ( Push the 32 inwardly of the inner circumferential surface so that the protruding jaw 32 is positioned directly above the protruding portion 12 of the inner tub 10 to prevent the washing tub 20 from being separated out of the inner tub 10. .

Referring to the operation of the washing machine according to an embodiment of the present invention made of such a configuration as follows.

When not washing, the washing tub 20 is removed from the washing machine and used for storing laundry to be washed. When the user washes, the washing tub 20 containing laundry is inserted into the inner tank 10 of the washing machine. do.

In this case, the washing tub 20 of the washing tub 20 is positioned in a state in which the protrusions 22 and the recesses 24 of the washing tub 20 correspond to the protrusions 12 and the recess 14 of the inner tub 10, respectively. Insert it into the inside of 10).

In addition, the user pushes the protruding jaws 32 of the fluid balancer 30 toward the central side of the fluid balancer 30 so that each of the protruding jaws 32 is located directly above the protruding portion 22 of the washing tub 20.

The washing is completed through a predetermined water supply administration, washing administration, rinsing administration, and dehydration administration.

In this case, the washing part 22 and the concave part 24 of the washing tub 20 are washed by emulsifying the detergent while applying an appropriate impact and friction to the laundry from the side.

Each of the water supply stroke, the washing stroke, the rinsing stroke, the dehydration stroke is made by a known washing stroke control method, and a detailed description thereof will be omitted.

When all the washing administration is completed, the laundry is taken out from the washing machine. In this case, the laundry tank 20 is pulled out from the inner tank 10 by lifting the whole washing tank 20 without having to take out the laundry contained in the washing tank 20. After that, the laundry will be moved to dry.

Meanwhile, FIG. 6 is an exploded perspective view illustrating main parts of a washing machine according to the present invention, and the first engagement portion 18 of the inner tub 10 illustrated in FIGS. 4 and 5 is provided at a side of the cylindrical inner tub 410. The protrusion 412 and the concave portion 414 are alternately formed up and down at regular intervals alternately inward and outward along the periphery of the same structure, and a plurality of drain holes 9 are formed.

Convex portions 415 are formed at upper and lower portions of the inner surface of the inner tank 410 to be convex inwards along the periphery of the inner tank 410, respectively.

Meanwhile, the washing tub 420 also has the same structure as the second engaging portion 28 of the washing tub 20 shown in FIGS. 4 and 5, and the protrusion 422 and the recess 424 are formed, and the plurality of drain holes 9 ) Is formed.

In addition, the outer surface of the washing tub 420 having a height corresponding to the convex portion 415 is formed with a recess 425 recessed along the periphery of the washing tub 420.

That is, the convex portion 415 and the concave portion 425 are the separation preventing means for preventing the washing tank 420 from being separated out of the inner tank 410.

The washing tank 420 is a flexible synthetic resin material, when the washing tank 420 is first inserted into the inner tank 410, the outer surface of the washing tank 420 is formed by the convex portion 415 of the inner tank 410. The recess 425 is fixed by being caught by the convex portion 415 in the state in which the washing tank 420 is fully inserted into the inner tank 410 while being pressed while being pressed inwardly.

Thus, even when the washing tank 420 rotates in conjunction with the rotation of the inner tank 410 at the time of washing, the up and down flow is prevented by the recess 425 and the convex portion 415 so that the washing tank 420 is the inner tank 420. It is not to escape from.

On the other hand, although not shown, it is possible to form a withdrawal handle on the upper end of the washing tank 420 to facilitate the withdrawal of the washing tank 420.

FIG. 7 is a cross-sectional view illustrating main parts of a washing machine according to a third embodiment of the present invention, and FIG. 8 is an enlarged perspective view of a cover of FIG. 7, wherein the cylindrical inner tank 510 and the washing tank 520 are disposed on the side surfaces of the washing machine 520. The protrusions 512 and 522 and the recesses 514 and 524 are formed in the same structure as the first engagement portion 18 and the second engagement portion 28 shown in FIG. 5, and a plurality of drain holes 9 are formed.

The third embodiment forms an expansion groove 530 on the inner tub 510 as a separation preventing means for preventing the detachment of the washing tub 520 detachably installed inside the inner tub 510. A plate-shaped cover 540 is provided.

More detailed description is as follows.

An expansion groove 530 is formed on the inner side of the inner tank 510 in the vertical direction so as to extend outwardly by a predetermined width along the periphery of the inner tank 510.

That is, the inner diameter D1 of the inner tub 510 in the portion of the expansion groove 530 forms a larger diameter D1 than the outer diameter D2 of the washing tub 520.

Thus, by installing the disc-shaped cover 540 in the expansion groove 530 to prevent the washing tank 520 is separated from the upper side of the inner tank 510.

At this time, the diameter of the cover 540 should be formed larger than D2, it is preferable to have a diameter corresponding to the inner diameter (D1) of the expansion groove (530).

In addition, the cover 540 is made of a synthetic resin material to have a certain degree of elasticity to facilitate insertion or separation in the expansion groove 530 of the inner tank 510.

On the other hand, in the center of the cover 540 to form an upwardly protruding handle 542 to facilitate the user gripping, the outer side of the handle 542 is formed by cutting a plurality of grooves 545 at a predetermined interval To facilitate the introduction of wash water.

Figure 9 is a partially cutaway exploded perspective view showing a fourth embodiment of the washing machine according to the present invention, in the fixing structure for interlocking the washing tank 620 and the inner tank 610 and the first, second, and third embodiments described above; It is made of a different structure.

That is, in the first, second, and third embodiments, the inner tank and the side surfaces of the washing tank are engaged with each other to form a fixed structure. However, in the fourth embodiment, the bottom surfaces of the washing tank 620 and the inner tank 610 are fixed.

This will be described in more detail as follows.

The inside of the bottom surface of the cylindrical inner tank 610 is formed so that a plurality of fixing projections 618 is upwardly projected, the same shape as the inner tank 610 of the washing tank 620 is retractably inserted into the inner tank 610 The same number of grooves 625 are recessed upwardly so that the fixing protrusion 618 can be inserted into the outer side of the bottom.

Thus, when the power of the driving motor (not shown) is transmitted to the inner tank 610 and the inner tank 610 rotates, the washing tank 620 fixed by the fixing protrusion 618 and the recess 625 rotates. do.

In addition, the recess 625 is applied to the appropriate impact and friction to the laundry during the laundry administration.

On the other hand, a convex portion 615 protrudes inwardly on the inner surface of the inner tank 610 and a recess 625 is formed on the outer side of the washing tank 620 so that the washing tank 620 is separated from the inner tank 610. A breakaway prevention structure is formed.

That is, when the washing tub 620 is completely inserted into the inner tub 610, the convex portion 615 and the concave groove 625 are engaged with each other and are fixed while being engaged with the convex portion 615 and the yaw. The fixing structure of the groove 625 prevents the up and down flow of the washing tank 620 to prevent the washing tank 620 from being separated out of the inner tank 610.

Meanwhile, in the embodiments of the present invention, only the case in which the inner tank and the washing tank are applied to the inclined washing machine inclined by a predetermined angle with respect to the horizontal plane is described. However, the present invention is not limited thereto and may be employed in the vertical washing machine and the horizontal washing machine. In addition, the structure of the washing machine having such a detachable washing tank is not limited to the drum type washing machine but may also be employed in a pulsate washing machine.

As described in detail above, the washing machine according to the present invention has the following effects.

First, when the laundry is completed, the laundry can be pulled out from the washing machine as a whole in the state in which the laundry is in the washing tank, and the laundry can be withdrawn.

Second, while the laundry is not used while the laundry is used for storing the laundry, when the laundry is used, the laundry tank containing the laundry can be inserted into the washing machine as it is and used as a washing tank, thereby increasing convenience in use.

Claims (7)

And a box having a rectangular box shape, an outer tub installed inside the casing, an inner tub rotatably installed in the inner tub, a power generating means and a power transmission means for rotating the inner tub so as to be reversed and reversed. In the washing machine, A washing tank having a plurality of drainage holes formed therein and containing laundry therein and being retractable from the inner tank; Fixing means for fixing the washing tank to the inner side of the inner tank so that the inner tub rotates in conjunction with the washing tub installed in the inner, And a detachment preventing means for preventing the washing tank from escaping to the outside of the inner tank, wherein the washing tank is detachably installed in the inner tank. The method of claim 1, Washing machine with a detachable laundry tank, characterized in that the inner bottom surface of the washing tank is rotated to a plurality of locking members that can interfere with the laundry while rotating the washing tank. The method of claim 1, The fixing means includes a first engaging portion in which a plurality of protrusions and recesses protruded or recessed by a predetermined width alternately inward and outward along the periphery of the inner tank are formed in a vertical direction; And a second engagement portion formed to engage with the first engagement portion along the periphery of the laundry tub. The method of claim 1, The fixing means is a recessed groove portion indented by a certain height upward on the outer side of the bottom of the washing tub, Washing machine having a detachable washing tank, characterized in that made of a fixing projection protruding upwards on the inner side of the bottom of the inner tank so as to correspond to the groove portion. The method of claim 1, The detachment preventing means is provided with a plurality of protruding jaws are arranged at a predetermined interval along the periphery of the open upper end of the inner tank, the projection jaw is located directly above the convex portion of the washing tank after the washing tank is inserted into the inner tank The washing machine provided with a detachable washing tank, thereby preventing the washing tank from being separated outward. The method of claim 1, The separation preventing means and the expansion groove bent to extend the diameter along its periphery in the upper portion of the vertical direction of the inner tank, Washing machine having a detachable laundry tank, characterized in that formed in the shape of a disc having a diameter larger than the outer diameter of the inner tank and smaller than the inner diameter of the expansion groove made of a cover that is detachably fitted to the expansion groove. The method of claim 1, The detachment preventing means includes a convex portion protruding inwardly along its periphery at the upper and lower vertical sides of the inner side of the inner tank; Washing machine having a detachable wash tub, characterized in that the concave portion formed in the recess groove formed on the outer surface of the wash tub so as to engage with the convex portion.