JP3747874B2 - Washing machine - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a washing machine that efficiently removes dirt by the action of detergent foam.
[0002]
[Prior art]
Conventionally, a typical washing machine performs washing by rotating a stirring blade called a pulsator, and the configuration of this type of washing machine will be described with reference to FIG.
[0003]
As shown in FIG. 9, the outer tub 1 includes a washing / dehydrating tub 3 in which a pulsator 2 is rotatably disposed at the bottom, and is suspended from a washing machine outer frame 5 by a suspension bar 4. The motor 6 drives the pulsator 2 or the washing and dewatering tub 3 via the V belt 7 and the speed reduction mechanism / clutch 8. The drain valve 9 drains the washing liquid in the washing / dehydrating tank 3, and the water supply valve 10 supplies water to the washing / dehydrating tank 3.
[0004]
The washing / dehydrating tub 3 is provided with a fluid balancer 11 for reducing vibration during dehydration, and a lid 12 is disposed on the upper portion of the washing / dehydrating tub 3. The control device 13 controls the motor 6, the drain valve 9, the water supply valve 10, etc., and sequentially controls a series of steps of washing, rinsing and dehydration.
[0005]
The operation in the above configuration will be described. After the laundry and the predetermined amount of detergent are put into the washing and dewatering tub 3, when the operation is started, the control device 13 controls the water supply valve 10 to put the predetermined amount in the washing and dewatering tub 3. Then, the controller 6 controls the motor 6 to drive the pulsator 2. The laundry and water in the washing and dewatering tub 3 are agitated by the rotation of the pulsator 2, and by this agitation, the detergent is gradually dissolved to become a washing liquid, which acts on the dirt of the laundry.
[0006]
[Problems to be solved by the invention]
However, in the case of the washing machine having this configuration, the washing power is ensured only by the mechanical force of stirring the laundry in the washing / dehydrating tub 3 by the rotation of the pulsator 2. Because the mechanical power is easy to be transmitted to the laundry in (1), high cleaning power can be obtained, but conversely, since the mechanical power is difficult to be transmitted to the laundry at the top of the washing and dehydrating tub 3, the cleaning power cannot be obtained. There was a problem that washing unevenness became large.
[0007]
The present invention solves the above-mentioned problem, and aims to secure washing power and reduce washing unevenness by applying dissolved washing liquid as detergent foam to the laundry in the washing and dewatering tub from above. Yes.
[0008]
[Means for Solving the Problems]
To accomplish the above object, the pulsator in the central bottom portion of the washing and dewatering tank rotatably arranged, attach the cover member to the upper opening of the outer tank enclosing the washing and dewatering tank, washing and Motor for rotationally driving the dewatering tank and the stirring blade, a water supply valve for supplying water into the washing and dewatering tank, a foam for generating detergent foam, an air pump communicating with the foam via a hose, a motor, and water supply It controls the operation of such valves and the air pump, washing, rinsing, and control means for sequentially controlling a set of strokes, such as dehydration, one in the outer tub, the placement and septal wall between the washing and dewatering tank Forming a foam passage that is long in the vertical direction and has openings at the upper and lower ends, and the opening at the upper end of the foam passage is a foam that is provided in the cover body and opens in the inward direction of the washing and dewatering tub The opening at the lower end of the foam passage communicates with the discharge part. Communicates with the inside bottom, foam, set only being inside the bubble passage, the partition wall is obtained by detachably attached to the outer tub.
[0009]
As a result, the dissolved washing liquid can be made into detergent foam and applied to the laundry in the washing and dehydrating tub from above, so that it can act on the dirt on the laundry on the washing and dehydrating tub. It is possible to secure and reduce washing unevenness, and since the partition wall is detachably attached to the outer tub , the assembling property is excellent, the washing power is increased at low cost, and washing unevenness can be reduced .
[0010]
DETAILED DESCRIPTION OF THE INVENTION
According to the first aspect of the present invention, there is provided a washing / dehydrating tub in which a pulsator is rotatably disposed at a central inner bottom, an outer tub containing the washing / dehydrating tub, and an upper opening of the outer tub. The attached cover body, a motor for rotationally driving the washing / dehydrating tub and the stirring blade, a water supply valve for supplying water into the washing / dehydrating tub, a foam for generating detergent foam, and the hose through the hose a pump in communication with the foam, the motor, and controls the operation such as the water supply valve and the air pump, washing, rinsing, and control means for sequentially controlling a set of strokes, such as dehydration, to the outer tank, washing and open mouth to form a foam passage having a long upper and lower ends in the longitudinal direction are partitioned part by the arrangement and the partition wall between the drying tub, the opening of the upper end of the foam passage, the cover body Opened inward of the washing and dewatering tank Communicates with the discharge portion, the opening portion of the lower end of the foam passage is in communication with the inner bottom portion of the outer tub, the foam is provided inside of the foam passage, the partition wall, the outer tub The dissolved washing liquid is made into detergent foam by the foam generating mechanism, and this detergent foam is formed by the outer tub, the partition, and the openings provided at the upper and lower ends of the partition. By applying the washing from the top to the laundry in the washing and dewatering tub from above, the cleaning power can be secured and washing unevenness can be reduced , and the partition wall is detachably attached to the outer tub. It is excellent in assemblability, can improve the cleaning power at low cost, and can reduce unevenness in washing.
[0011]
Invention according to claim 2, in the invention of the above claim 1 Symbol placement, the partition wall, after locking the both sides by inserting slide from top to bottom in the outer tub, cover the upper portion - It is fixed by pressing with the body , and it is superior in assemblability, can improve the cleaning power at low cost, and can reduce unevenness in washing.
[0012]
The invention according to claim 3 is the invention according to claim 1 or 2, wherein the foam is held by a holding rib provided on a side surface of the foam passage of the partition wall. It can be installed in a very simple configuration, can be assembled with low cost and can be washed with detergent foam from the top, and many detergent components can act on the dirt on the laundry in the washing and dehydrating tub. , Can increase the cleaning power.
[0013]
【Example】
Embodiments of the present invention will be described below with reference to the drawings.
[0014]
Example 1
As shown in FIG. 1, the outer tub 14 encloses a washing and dewatering tub 15 that is rotatably arranged, and is suspended from a washing machine outer frame 17 by a suspension bar 16. The motor 18 rotationally drives the washing / dehydrating tub 15 and the pulsator 21 rotatably disposed on the inner bottom of the washing / dehydrating tub 15 via the V-belt 19 and the speed reduction mechanism 20.
[0015]
The cover body 22 is provided in the upper opening 23 of the outer tub 14 to form a foam discharge part 24, and the foam discharge part 24 opens toward the washing and dehydration tank 15. The partition wall 25 divides a part of the outer tub 14 and forms a foam passage 26 that is long in the vertical direction and has openings 27 at upper and lower ends. The opening 27 at the lower end of the foam passage 26 is communicated with the inner bottom of the outer tub 14, and the opening 27 at the upper end of the foam passage 26 is communicated with the foam discharge section 24. A foam generation mechanism 29 made of a foam 28 is provided in the foam passage 26, and the foam generation mechanism 29 communicates with the air pump 31 via a hose 30.
[0016]
As shown in FIG. 2, the foam 28 has a substantially cylindrical shape, and a first holding portion 32 and a second holding portion 33 are inserted into the insides of both planes. The first holding portion 32 is hollow, and the end portion that is not inserted into the foam 28 is inserted into the hose 30.
[0017]
The water supply valve 34 supplies water into the washing / dehydrating tub 15, and the drain valve 35 drains the washing liquid in the outer tub 14.
[0018]
The control device 36 is configured as shown in FIG. 3, and the control means 37 is constituted by a microcomputer, and the operation of the motor 18, the air pump 31, the water supply valve 34, the drain valve 35, etc. via the power switching means 38. And a series of processes such as washing, rinsing and dehydration are sequentially controlled. The input setting means 39 sets the driving course and the like, and the control means 37 inputs information from the input setting means 39 and displays it on the display means 40 based on the information to notify the user. The storage means 41 stores data necessary for control by the control means 37. Reference numeral 42 denotes a commercial power source and 43 denotes a power switch.
[0019]
The operation in the above configuration will be described. When the operation is started after the laundry and the detergent are put into the washing and dewatering tub 15, the control means 37 operates the water supply valve 34 to start the water supply. The dewatering tank 15 starts to rotate. The washing and dewatering tank 15 rotates until the water level in the washing and dewatering tank 15 reaches the set water level. When water is supplied while rotating the washing / dehydrating tub 15 as described above, the introduced detergent is dissolved by the stirring force generated by the rotation of the washing / dehydrating tub 15.
[0020]
When the set water level is reached, the operation of the water supply valve 34 is stopped, and the rotation of the washing and dewatering tub 15 is continued. The air pump 31 is actuated by the control means 37, and the air is passed through the hose 30 and the first holding part 32 to the foam 28 in the washing liquid which has entered through the opening 27 provided in the foam passage 26 and provided at the lower end of the partition wall 25. Will be sent.
[0021]
As a result, as shown in FIG. 1, the air sent to the foam 28 rises as bubbles when it leaves the foam 28, reaches the washing liquid surface, and detergent bubbles are generated. The detergent foam rises through the foam passage 26 formed by the outer tub 14 and the partition wall 25, and is washed and removed from the foam discharge portion 24 of the cover body 22 communicating with the opening 27 at the upper end of the foam passage 26. It is put on the laundry in the water tank 15.
[0022]
In this way, by passing the detergent foam through the soiled garment surface or the garment, the foam and the particulate soil adhering to the oil are bound and carried away. Further, when the foam breaks while passing through the clothes, a high-concentration detergent solution is soaked into the clothes, and this also makes it easy to remove dirt. In this way, the clothes can be washed.
[0023]
As a result, the washing liquid is made into foam, and the foam is allowed to pass through the surface of the laundry or the laundry, so that the oil and the particle dirt adhered to the oil can be combined and carried away, or the foam can be washed away. If bubbles are broken during the passage, it becomes possible for a detergent solution of high concentration to penetrate into the laundry, and the cleaning power can be increased. Moreover, since the volume is increased by making the washing liquid into foam, the detergent component can be made to act on the dirt of the laundry with a small amount of washing liquid. Uneven washing can be reduced because it can act on the soil of the laundry where the mechanical force on it is difficult to be transmitted.
[0024]
(Example 2)
As shown in FIGS. 4 and 5, the partition wall 44 is a separate body from the outer tub 45 and is detachably formed by being fixed by screws 52. The partition wall 44 is integrally provided with the partition wall 44. The foam 47 is held on the rib 46 via the first holding portion 48 and the second holding portion 49, and the hose 51 is held on a plurality of claw portions 50 provided integrally with the partition wall 44. Other configurations are the same as those of the first embodiment.
[0025]
The operation in the above configuration will be described. Since the partition wall 44 is formed separately from the outer tub 45 and is detachable, the outer tub 45 can be easily manufactured.
[0026]
In addition, since the foam body 47 and the hose 51 are held in the partition wall 44, the foam body 47 and the hose 51 can be attached with a very simple structure. The washing power can be increased because many detergent components can act on the dirt of the laundry in the washing and dewatering tub 15.
[0027]
Example 3
As shown in FIGS. 6 to 8, the partition wall 70 is detachable separately from the outer tub 71, has concave portions 72 formed in a substantially U shape on both side surfaces, and is located above the convex portions 73 provided in the outer tub 71. The cover body 74 is attached to the outer tub 71 and then the upper end of the partition wall 70 is pressed and fixed by the cover body 74. In this state, the upper end of the partition wall 70 is in contact with the lower surface of the cover body 74, and the lower end of the partition wall 70 is in contact with the outer tub 71. Other configurations are the same as those of the first embodiment.
[0028]
The operation in the above configuration will be described. The partition wall 70 is detachable separately from the outer tub 71, has concave portions 72 formed in a substantially U shape on both side surfaces, and is locked to the convex portions 73 provided in the outer tub 71. Therefore, the radial direction of both side surfaces of the outer tub 71 and the partition wall 70 is fixed, and foam leakage can be prevented.
[0029]
Moreover, since the upper end of the partition wall 70 is in contact with the lower surface of the cover body 74 and the lower end of the partition wall 70 is in contact with the outer tank 71, the outer tank 71 and the partition wall 70 can be fixed in the vertical direction. Combined with both sides, it can prevent rattling of the partition wall 70 with a very simple structure, can prevent abnormal noise, and can be washed with detergent foam from above at a low cost. Can be made to act on the dirt of the laundry in the washing and dewatering tank 15, so that the cleaning power can be increased.
[0030]
【The invention's effect】
As described above, according to the first aspect of the present invention, the washing / dehydrating tub in which the pulsator is rotatably disposed at the center inner bottom, the outer tub containing the washing / dehydrating tub, and the outer tub A cover attached to the upper opening of the tub, a motor for rotationally driving the washing / dehydrating tub and the stirring blade, a water supply valve for supplying water into the washing / dehydrating tub, and a foam for generating detergent foam An air pump communicating with the foam through a hose, and a control means for controlling operations of the motor, a water supply valve, an air pump, and the like, and sequentially controlling a series of steps such as washing, rinsing, and dehydration. the tank is arranged between the washing and dewatering tank longer open mouth to form a foam passage having upper and lower ends in the longitudinal direction and partitions a part by a partition wall, an opening at the upper end of the foam passage The section is provided on the cover body and the washing and dewatering tub Communicates with the bubble discharge portion inwardly open, the opening of the lower end of the foam passage is in communication with the inner bottom portion of the outer tub, the foam is provided inside the bubble passage, wherein Since the partition wall is detachably attached to the outer tub , the washing liquid can be used as detergent foam, and the detergent foam can be applied from above to act on the dirt on the laundry on the washing and dehydrating tub. The unevenness of washing can be reduced , and the partition wall is detachably attached to the outer tub, so that the assemblability is excellent, the cleaning power can be increased at low cost, and the unevenness of washing can be reduced.
[0031]
According to the second aspect of the present invention, the partition wall is slid downward from above and inserted into the outer tub, and then the upper end portion is pressed and fixed by the cover body . Therefore, it is excellent in assemblability, can improve the cleaning power at low cost, and can reduce unevenness in washing.
[0032]
Further, according to the invention described in claim 3, since the foam is held by the holding rib provided on the side surface of the foam passage of the partition wall, the foam can be attached with a very simple structure and assembled. Since it can be washed with detergent foam from above at a low cost, and many detergent components can act on the dirt of the laundry in the washing and dewatering tub, the detergency can be enhanced.
[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 a sectional view of essential parts of the washing machine. FIG. 3 is a block circuit diagram of the washing machine. FIG. 5 is a sectional view of the main part of the washing machine. FIG. 6 is a longitudinal sectional view of the washing machine of the third embodiment of the present invention. Cross-sectional view of the main part [FIG. 8] An exploded perspective view of the main part of the washing machine [FIG. 9] A vertical cross-sectional view of the conventional washing machine [Explanation of symbols]
14 outer tub 15 washing / dehydration tub 21 pulsator 22 cover body 23 upper opening 25 partition 26 foam passage 27 opening 29 foam generation mechanism

Claims (3)

A washing and dewatering tub in which a pulsator is rotatably arranged at the center inner bottom, an outer tub containing the washing and dehydrating tub, a cover body attached to an upper opening of the outer tub, the washing and dehydrating tub, and A motor for rotationally driving the stirring blade, a water supply valve for supplying water into the washing and dewatering tub, a foam for generating detergent foam, an air pump communicating with the foam via a hose, the motor, and a water supply Control means for controlling the operation of valves and air pumps, and sequentially controlling a series of processes such as washing, rinsing, and dehydration. The outer tub is disposed between the washing and dehydration tub and partly separated by a partition wall. the partitioned longer open mouth to form a foam passage having upper and lower ends in the longitudinal direction, opening in the upper end of the foam passage is inwardly of the washing and dewatering tank provided in the cover body Communicating with the open foam discharge section, the foam passage Opening of the end portion is in communication with the inner bottom portion of the outer tub, the foam, the provided inside of the bubble passage, the partition wall, washing machine detachably mounted to the outer tub. Partition wall, after both sides engaged in the outer tub by inserting slide from top to bottom, the upper end cover - Washing machine according to claim 1 Symbol placement was fixed by pressing the body. The washing machine according to claim 1 or 2 , wherein the foam is held by a holding rib provided on a side surface of the foam passage of the partition wall .

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