KR100503222B1 - Washing machine - Google Patents

Abstract

Detergent foam is made from the wash water in which the detergent is dissolved. And it is set as the structure which sprays detergent foam on the laundry in a washing-and-dehydration tank from upper direction. Thereby, the washing machine which ensures washing force and reduces washing | cleaning stain is provided.

Description

Washing machine {WASHING MACHINE}

The present invention relates to a washing machine for efficiently removing contamination by the action of detergent foam.

Conventional washing machines wash by rotating stirring blades called pulsators. 9 shows a configuration of a conventional washing machine.

As shown in FIG. 9, the outer tank 1 contains the washing-and-dehydrating tank (henceforth a washing tank) 3 which provided the stirring blade 2 in the bottom part. The outer tub 1 is suspended from the washing machine outer frame 5 by the hanging rod 4. The motor 6 drives the stirring blade 2 or the washing tank 3 via the V belt 7 and the reduction mechanism and clutch 8. The drain valve 9 is a valve for draining the wash water in the washing tank 3. The water supply valve 10 is a valve for supplying water into the washing tank 3. The washing tank 3 has a fluid balancer 11 in order to reduce vibration at the time of dehydration. Lid 12 is installed on top of the washing tank (3). The control device 13 controls the motor 6, the drain valve 9, the water supply valve 10, and the like to sequentially control a series of processes such as washing, rinsing, and dehydration. The operation of the above configuration will be described. After the laundry and the predetermined amount of detergent are put into the washing tank 3, the operation is started. The control device 13 opens the water supply valve 10 and supplies a predetermined amount of water into the washing tank 3. Thereafter, the control device 13 rotates the motor 6 to drive the stirring blade 2. The stirring blade 2 agitates the laundry and water in the washing tank 3. By this agitation, the detergent gradually dissolves in water to form wash water. And the wash water acts on the contamination of the laundry. However, the conventional washing machine stirs the laundry in the washing tank 3 by the rotation of the stirring blade 2. That is, the cleaning power is secured only by the mechanical force. Therefore, a mechanical force is easy to be transmitted to the laundry in the bottom part of the washing tub 3, and high washing power is obtained.

On the other hand, the mechanical force is difficult to transmit to the laundry in the upper portion of the washing tank (3). As a result, high cleaning power cannot be obtained at the top. That is, in the conventional washing machine, there is a problem that the washing stain is large. Moreover, in order to reduce washing | cleaning stains, the subject that the cloth of a laundry is easy to be damaged also arises when stirring is continued for a long time. An object of the present invention is to provide a washing machine which reduces washing stains while ensuring high cleaning power.

Washing and dehydration tank provided with stirring blades in the central inner bottom, outer tank containing the washing and dewatering tank, cover body attached to the upper opening of the outer tank, foam provided in the outer tank and having openings at upper and lower ends An air pump communicating with the water passage, the foam discharge portion provided in the cover body and having an opening in the inner direction of the washing and dehydrating tank, the porous body provided inside the foam passage, and the porous body via a hose. It provides a washing machine having a.

EMBODIMENT OF THE INVENTION Hereinafter, embodiment of this invention is described, referring drawings.

In addition, the figure is schematic and does not correctly represent each positional relationship dimensionally.

(Example 1)

As shown in FIG. 1, the outer tub 14 contains the washing tub 15. In addition, the outer tub 14 is suspended from the washing machine outer frame 17 by the hanging rod 16. The washing tub 15 is rotatable. The motor 18 rotationally drives the washing tub 15 and the stirring vane 21 provided in the inner bottom part of the washing tub 15 via the V belt 19 and the deceleration mechanism 20. The cover body 22 is attached to the upper opening of the outer tub 14. In addition, the cover body 22 constitutes a bubble discharge part 23. The bubble discharge part 23 has an opening toward the inner direction of the washing tank 15. The foam passage 24 partitions a part of the outer tub 14 and has a longitudinal shape. The upper end and the lower end have openings. The opening 25 at the lower end of the foam passage 24 communicates with the inner bottom of the outer tub 14. The opening part of the upper end of the bubble passage 24 communicates with the bubble discharge part 23. The porous body 26 is installed in the bubble passage 24. This porous body 26 communicates with the air pump 28 through the hose 27. The shape of the porous body 26 is substantially cylindrical as shown to FIG. 2A, FIG. 2B. The first holding part 29 and the second holding part 30 are respectively inserted into the flat parts on both sides. The first holding part 29 is hollow. One end of the first holding part 29 is inserted into the porous body 26. In addition, the other end of the first holding part 29 is inserted into the hose 27. As shown in FIG. 3, the locking part 31 which hangs the 1st holding part 29 and the 2nd holding part 30 is formed in the bubble passage 24. As shown in FIG. The porous body 26 into which the first holding part 29 and the second holding part 30 are inserted is detachable to the locking part 31. Moreover, the locking part 31 is a structure which pinches the porous body 26 from both sides via the 1st holding part 29 and the 2nd holding part 30. As shown in FIG. Therefore, the 1st holding part 29 and the 2nd holding part 30 do not fall easily from the porous body 26 easily. In addition, the porous body 26 is provided in the position which is not in contact with the bottom surface, the inner wall, and the locking part 31 in the bubble passage 24. As shown in FIG. 4, the axial direction of the substantially cylindrical porous body 26 is made substantially horizontal. And the porous body is fastened by the catching part 31 in the position which is higher than the upper end surface of the opening part 25 of the lower end of the foam passage 24. The water supply valve 32 is a valve for supplying water into the washing tank 15. The drain valve 33 is a valve for draining the wash water in the outer tank 14. The control apparatus 34 is comprised as shown in FIG. The control means 35 is comprised by a microcomputer, and controls the operation | movement of the motor 18, the air pump 28, the water supply valve 32, the drain valve 33, etc. via the power switching means 36. As shown in FIG. In this way, a series of processes such as washing, rinsing, and dehydration are sequentially controlled. The input setting means 37 sets a driving course and the like. The control means 35 inputs the information from the input setting means 37, and displays it on the display means 38 on the basis of the information to inform the user. The storage means 39 stores data necessary for controlling using the control means 35. Moreover, the commercial power supply 40, the power switch 41, etc. are also provided. The operation of the above configuration will be described. After the laundry and the detergent are put into the washing tank 15, the operation is started. The control means 35 operates the water supply valve 32 to start water supply. At the same time, the washing tank 15 starts to rotate. The washing tank 15 rotates until the water level in the washing tank 15 reaches the set water level. When water is supplied while the washing tank 15 is rotated in this manner, the added detergent is dissolved in water by the stirring force generated by the rotation of the washing tank 15. The water supply valve 32 is closed when the set water level is reached, but the rotation of the washing tank 15 continues. The control means 35 operate the air pump 28. And air is sent to the porous body 26 in wash water provided in the bubble passage 24 through the hose 27 and the 1st holding part 29. As shown in FIG.

As a result, as shown in FIG. 1, the air sent to the porous body 26 becomes a bubble when it comes out from the porous body 26, and rises. And when the bubble reaches the wash surface, detergent bubbles are generated. Detergent foam rises through the foam passage 24 and is poured into the laundry in the washing tank 15 from the foam discharge part 23 of the cover body 22. The detergent foam is then passed over the surface of the soiled clothing or over the clothing. As a result, the detergent foam combines with oil or contaminating particles attached to the oil and takes them from the garment. In addition, when the detergent bubble bursts during the passage of clothing, a high concentration of detergent liquid permeates the clothing. This also leads to a state in which contamination easily occurs. In this way, washing | cleaning of clothing is possible. Thus, washing power can be improved by making wash water into foam. Moreover, the volume of wash water increases by making wash water foam. As a result, detergent components can be exerted on the contamination of laundry with less washing water. In addition, by sandwiching the detergent foam from above, the mechanical force at the top in the washing tank 15 can be caused to contaminate the laundry that is difficult to transmit. That is, the washing | cleaning stain can be reduced.

Moreover, the porous body 26 is provided in the vicinity of the lower end of the inside of the passage 24 for foaming, and makes the cylindrical axial direction substantially horizontal. In this way, the porous body 26 can be precipitated in the detergent liquid in a smaller quantity. In other words, detergent foam can be generated in a lower quantity. Thereby, less washing water can be made into detergent foam, and it can wash | clean by pouring detergent foam from the top. Detergent foam having a high washing concentration, i.e., many detergent components, may be caused to contaminate the laundry in the washing tank 15. In this way, cleaning power can be improved. In addition, the center of the porous body 26 is provided at a position above the upper end surface of the opening portion 25 of the lower end portion. As a result, the generated bubbles hardly escape in the direction of the inner bottom of the outer tub 14, and efficiently rise in the foam passage 24. As shown in FIG. Thereby, more detergent foam can be splashed and washed from the top. In other words, many detergent components can act on the contamination of the laundry in the washing tank 15. That is, cleaning power can be improved. Moreover, the porous body 26 is provided in the position which is not in contact with the bottom face, the inner wall, and the locking part 31 in the bubble passage 24. As shown in FIG. 6, when the porous body 26 is in contact with the bottom face and the inner wall in the bubble passage 24, the bottom face and the inner wall become resistance to bubble generation. As a result, the bubble 50 hardly arises from the porous body 26. In addition, even if bubbles are generated, bubbles generated from the surface of the porous body 26 are likely to burst, and the bursting bubbles are easily joined to generate large bubbles. That is, since detergent foam is large, detergent density becomes low and an appropriate washing | cleaning effect is not acquired. From this, the porous body 26 is separated from the bottom surface, the inner wall, and the locking portion 31 in the foam passage 24. As a result, generation | occurrence | production of detergent foam is not disturbed, washing water can be made into detergent foam more efficiently, and it can wash | clean by pouring detergent foam from the laundry. And many detergent components can act on the contamination of the laundry in the washing tank 15, and a washing power can be improved. In addition, the shape of the porous body 26 is substantially cylindrical, and the thickness is uniform. Air sent through the hose 27 is uniformly dispersed and bubbles from the surface of the porous body 26. As shown in FIG. 7, when the thickness of the porous body is nonuniform, the air sent through the hose 27 concentrates from the thin portion and becomes the bubble 50. As a result, the surface area of the porous body which can generate bubbles becomes narrow compared with the case where the thickness is uniform. This makes the shape of the porous body 26 substantially cylindrical, and makes the thickness of the porous body 26 uniform. Thereby, the surface area of the porous body which can generate | occur | produce foam efficiently can be enlarged. In addition, washing water can be washed with more detergent foam by pouring detergent foam from above. That is, since many detergent components can act on the contamination of the laundry in the washing tank 15, washing power can be improved. Moreover, the porous body 26 has the 1st holding part 29 and the 2nd holding part 30 in the inside of the planar part of both sides, respectively. The catching part 31 which hangs the 1st holding part 29 and the 2nd holding part 30 is formed in the bubble passage 24. As shown in FIG. The porous body 26 can be attached to or detached from the locking portion 31. The locking part 31 is a structure which sandwiches the porous body 26 from both sides through the 1st holding part 29 and the 2nd holding part 30. As shown in FIG. Therefore, the 1st holding part 29 and the 2nd holding part 30 do not fall easily from the porous body 26 easily. In this way, it is possible to prevent the hose 27, the first holder 29, the second holder 30, and the like from being removed from the porous body 26. Since the porous body 26 is hung detachably in the foam passage 24, detergent foam can be reliably generated. Moreover, the 1st holding part 29 is hollow. And the edge part of the side which is not inserted in the inside of the porous body 26 is inserted in the hose 27. As shown in FIG. Thereby, the 1st holding part 29 can also serve as an air supply part. As a result, assembly becomes easy. In addition, the number of parts can be reduced, contributing to cost reduction. In addition, as described above, the size of the detergent foam and the cleaning effect are closely related. In addition, making the size of the detergent foam uniform and in an appropriate range is an important factor for increasing the cleaning effect.

(Example 2)

As shown in FIG. 8, the shape of the porous body 42 is substantially spherical. The holding part 43 is inserted inside the porous body 42. The holding part 43 is hollow. In the bubble passage 24, a catching portion 45 for hanging the holding portion 43 is formed. At the position where the center of the porous body 42 is above the upper surface of the opening 25 (see FIG. 1 or FIG. 4) of the lower end of the foam passage 24, the porous body 42 is attached to the locking portion 45. Hangs by Moreover, the porous body 42 is provided in the position which is not in contact with the bottom surface, the inner wall, and the locking part 45 in the foam passage 24. The other configuration is the same as that of the first embodiment.

The operation of the above configuration will be described. Since the shape of the porous body 42 is substantially spherical, the thickness of the porous body 42 is almost uniform. And the air sent through the hose 27 disperse | distributes uniformly, and becomes a bubble from the surface of the porous body 42. As a result, the surface area of the porous body in which air bubbles can generate | occur | produce becomes large compared with the case where thickness is nonuniform. As a result, washing water can be made into more detergent foam, and it can wash | clean by pouring detergent foam with laundry from the top. That is, since many detergent components can act on the contamination of the laundry in the washing tank 15, washing power can be improved. And since the washing power is high, washing time can be shortened compared with the conventional washing machine. That is, it has the effect of reducing the damage of the cloth of laundry. Moreover, as a porous body of this invention, a ceramic sintered compact etc. are preferable. An alumina sintered compact is mentioned as an example.

Washing water is used as detergent foam, and it is set as the structure which sprays detergent foam from the laundry. Less wash water can cause detergent components to contaminate the laundry in the bath. Moreover, since it can act on the contamination of the laundry in the upper part of a washing tank, the washing machine which reduces washing | cleaning stain is provided.

1 is a longitudinal sectional view of a washing machine of a first embodiment of the present invention;

2A is a side cross-sectional view of the porous body of the washing machine of the first embodiment of the present invention;

2B is a cross-sectional view of the porous body of the washing machine of the first embodiment of the present invention;

3 is an enlarged side cross-sectional view showing a state in which the porous body of the washing machine according to the first embodiment of the present invention is attached to a foam passage;

4 is a cross-sectional view showing a state in which the porous body of the washing machine of the first embodiment of the present invention is attached to a foam passage;

5 is a block circuit diagram of a washing machine of the first embodiment of the present invention;

6 is an enlarged side cross-sectional view showing a state in which the porous body of the washing machine of the first embodiment of the present invention is in contact with a foam passage;

7 is a cross-sectional view of a porous body of another example different from the porous body of the washing machine of the first embodiment of the present invention;

8 is a side cross-sectional view showing a state in which the porous body of the washing machine of the second embodiment of the present invention is attached to a foam passage;

9 is a longitudinal sectional view of a conventional washing machine.

<Explanation of symbols for main parts of drawing>

1, 14... External tanks 2, 21. Stirring wing

3, 15... Washing and dewatering tanks 4, 16. Hanging rods

5, 17... Washing machine outer frame 6, 18... motor

7, 19... V belt 8, 20... Reduction Mechanism & Clutch

9, 33... Drain valves 10, 32. Water supply valve

11. Fluid balancer 12. Lid

13, 34... Control unit 22. Cover

23. Foam discharge section 24. Foam passage

25…. Openings 26, 42. Porous body

27. Hose 28... Air pump

29. First holding part 30. 2nd holding part

31, 45... Locking portion 34. controller

43. Holding unit 50.. bubble

Claims (19)

Washing and dehydration tank provided with stirring blades in the central inner bottom, outer tank containing the washing and dewatering tank, cover body attached to the upper opening of the outer tank, foam provided in the outer tank and having openings at upper and lower ends A passage for the passage, a foam discharge portion provided in the cover body and opened in the washing and dewatering tank, a porous body provided inside the foam passage, and an air pump communicating with the porous body through a hose. Washing machine, characterized in that provided. The method of claim 1, Washing machine, characterized in that the porous body is installed at the lower end in the foam passage. The method according to claim 1 or 2, And the porous body is installed at a position where the center of the porous body is above the upper end surface of the opening of the lower end in the foam passage. The method of claim 3, And the porous body is separated from the bottom surface and the inner wall of the foam passage. The method of claim 3, The porous body is a washing machine, characterized in that the sphere (sphere). The method of claim 3, The porous body is a washing machine, characterized in that the cylindrical shape. The method according to claim 1 or 2, And the porous body is separated from the bottom surface and the inner wall of the foam passage. The method of claim 7, wherein The porous body is a washing machine, characterized in that the spherical shape. The method of claim 7, wherein The porous body is a washing machine, characterized in that the cylindrical shape. The method according to claim 1 or 2, The porous body is a washing machine, characterized in that the spherical shape. The method according to claim 1 or 2, The porous body is a washing machine, characterized in that the cylindrical shape. The method of claim 11, The cylindrical porous body supports both flat portions and is attached to the foam passage. The method of claim 12, A washing machine is provided on both side portions of the cylindrical porous body, and a holding part for hanging the holding part is provided on an inner wall of the foam passage. The method of claim 12, Among the holding portions provided on both planar sides of the cylindrical porous body, one of the holding portions is hollow, one end is connected to a hose, and the other end is connected to the inside of the porous body. Washing machine. The method of claim 13, Among the holding portions provided on both planar sides of the cylindrical porous body, one of the holding portions is hollowed, one end is connected to a hose, and the other end is connected to the inside of the porous body. washer. The method of claim 12, A washing machine characterized in that the axial direction of the cylinder of the cylindrical porous body is horizontal. The method of claim 13, A washing machine characterized in that the axial direction of the cylinder of the cylindrical porous body is horizontal. The method of claim 14, A washing machine characterized in that the axial direction of the cylinder of the cylindrical porous body is horizontal. The method of claim 15, A washing machine characterized in that the axial direction of the cylinder of the cylindrical porous body is horizontal.