JP3744013B2 - Washing machine - Google Patents

Description

[0001]
[Industrial application fields]
The present invention relates to a clothes washing machine used in general households.
[0002]
[Prior art]
A configuration of a conventional washing machine will be described with reference to FIG. In the figure, 1 is a main body of a washing machine, 2 is a washing tub for storing washing water, 3 is a dehydration tub enclosed in the washing tub 2 and containing a laundry and having a fluid balancer 4 at the top, and 5 at the bottom of the dehydration tub 3 It is the arranged washing means, that is, a pulsator, and a blade 6 for generating a circulating water flow is formed on the back surface of the pulsator. Reference numeral 7 denotes a discharge port provided in the upper part of the dewatering tank 3 for discharging the washing water toward the upper part of the laundry in the form of a shower. 8 is a transmission mechanism, a reduction gear that decelerates the rotation of the pulsator 5 to a predetermined rotation during washing, a clutch that switches between rotating the pulsator 5 or the dehydration tank 3 according to washing and dehydration, and a dehydration tank The brake which decelerates 3 rotation is built in. Reference numeral 9 denotes a motor provided at the bottom of the washing tub 2, and 10 and 11 denote a motor-side pulley and a transmission mechanism-side pulley, respectively, which transmit the power of the motor 9 via the belt 12. Reference numeral 13 denotes a water supply means, that is, a water supply valve, which is connected to the water supply and controls the supply of washing water to the washing tub 2, and 14 is a detergent container provided in the middle of a path for supplying water to the washing tub 2.
[0003]
The operation of the conventional washing machine configured as described above will be briefly described below. The user of the washing machine first puts laundry (not shown) into the dewatering tub 3, then puts a detergent according to the amount of laundry into the detergent case 14, and then presses the start switch of the washing machine to perform washing. Start. Thereafter, the water supply valve 13 is opened to start water supply. The supplied wash water flows the detergent in the detergent container 14 in the water supply path into the washing tub 2. After a predetermined amount of water has been supplied, the pulsator 5 is driven to rotate to roll the laundry, and the washing water is circulated by the pump action of the blade 6 and is applied to the laundry as a shower from the discharge port 7. As a result, the introduced detergent quickly dissolves and the shower acts on the laundry to obtain high cleaning performance. After washing, rinsing and dehydration are performed to finish washing.
[0004]
[Problems to be solved by the invention]
In the conventional washing machine, washing is performed by rolling laundry by high-speed rotation of the pulsator 5 and applying a large mechanical force to the laundry. As a result, the laundry can be surely cleaned, and the washing efficiency is high. However, depending on the type of cloth, the damage and entanglement become extremely large, and it is not suitable for washing clothes such as delicate clothes such as wool or fashionable clothes such as blouses.
[0005]
In recent years, a washing machine employing a washing method in which a large amount of washing water is used for a small amount of laundry and the pulsator 5 is driven at a low speed has been realized. In such a system, a large amount of washing water of about 52 liters is required for a small amount of laundry of about 1.2 kg, and an extremely large amount of detergent is required for the amount of laundry, and the pulsator 5 is Even though the speed is low, the mechanical force is unavoidably applied to the laundry, and there is a problem in terms of cloth damage and entanglement.
[0006]
The present invention is directed to purpose to provide a washing machine to achieve a fashionable clothes washing no such cloth bruise-entangled.
[0007]
[Means for Solving the Problems]
In order to achieve the above object, the invention according to claim 1 of the present invention includes a dewatering tub for storing laundry, a pulsator provided at the bottom of the dewatering tub, a blade provided at a lower portion of the pulsator, A washing tub containing the dehydrating tub, a circulation path having a discharge port for circulating washing water above the dehydrating tub and discharging it into the dehydrating tub, a net provided along the inner wall of the dehydrating tub, A fixing tool for fixing the net to the inner wall of the dehydration tank, and the fixing tool is provided on the upper and lower portions of the inner wall of the dehydration tank, and the net is held on the inner wall of the dehydration tank by the fixing tool. In addition, it is possible to remove the upper fixing member so as to cover the upper part of the pulsator so that the washing water is circulated through the circulation path by the blade and discharged to the laundry on the net in the dewatering tub. in the Monodea .
[0008]
The invention according to claim 2 is the invention according to claim 1, wherein the net described above is formed into a corrugated plate shape having convex portions in the vertical direction of the inner wall of the dewatering tank .
[0009]
According to a third aspect of the present invention, in the first or second aspect of the present invention, the net is provided in a circulation path that is rotatably held on the inner wall of the dewatering tank by a rotating shaft of a fixture provided at a lower portion. The net is rotated so as to cover the pulsator together with the circulation path, and the washing water circulated through the circulation path by the blade is discharged from the lower separation part of the circulation path to the laundry on the net. It is what I did .
[0010]
[Action]
According to the first aspect of the present invention , the laundry is placed on the net and does not directly contact the pulsator , and the mechanical force, that is, the physical force acting on the laundry can be made extremely small. Moreover, since clothes do not move during washing | cleaning, washing without entanglement is attained.
[0011]
According to the second aspect of the present invention, it is possible to improve the cleaning ability by forming the net into a corrugated plate having a hole in the valley and exerting the effect of the washing plate.
[0012]
According to the third aspect of the present invention, when the washing liquid is applied to the clothing from above, the clothing and the washing solution can be reliably brought into contact with each other, and the washing performance can be improved.
[0013]
【Example】
Hereinafter, a first embodiment of the present invention will be described with reference to FIGS. Here, the same components as those in the conventional example are denoted by the same reference numerals, and detailed description thereof is omitted. 1 is a main body, 2 is a washing tub, 3 is a dehydration tub, 4 is a fluid balancer, 5 is a pulsator, 8 is a transmission mechanism, 9 is a motor provided at the bottom of the washing tub 2, 10 is a motor-side pulley, 11 Is a transmission mechanism side pulley, 12 is a belt, and 13 is a water supply valve. Denoted at 14 is a detergent container provided in the middle of the path for supplying water to the washing tub 2. A drain port 15 is provided at the bottom of the washing tub 2. A blade 6 is provided below the pulsator 5 and generates a circulating water flow. Reference numeral 16 denotes a circulation path for returning the washing water to the dewatering tank 3. The circulation path 16 has a discharge port 7 for discharging wash water to the dehydration tank 3 in the form of a shower, and the discharge port 7 is provided in the upper part of the dehydration tank 3. 17 is a net provided along the inner wall of the dehydration tank 3 and can cover the pulsator 5 in a removed state. Reference numerals 18 and 19 denote fixing brackets for fixing the net 17 to the inner wall of the dewatering tank 3.
[0014]
The operation of this embodiment will be described below. First, the user removes the net 17 from the inner wall of the dewatering tank 3 and places it on the lower part of the dewatering tank 3 so as to cover the pulsator 5. In this embodiment, about 1.2 kg of clothes such as clothes made of delicate materials such as wool and fashionable blouse that easily lose shape are placed on the net 17. A predetermined amount of detergent is put into the detergent container 14 according to the amount of the laundry. Thereafter, the water supply valve 13 is energized to supply water into the washing tub 2 together with the detergent in the detergent container 14. In this embodiment, about 26 liters of water is supplied. In the washing process, the pulsator 5 is rotated at about 140 rpm by the transmission mechanism 8 and the motor 9, and the circulating water flow generated by the blade 6 is sprinkled with shower-like washing water from the discharge port 7 onto the laundry using the circulation path 16. While washing. Further, the water flow generated by the pulsator 5 passes through the net 17 and penetrates into the clothes, and an extremely gentle force acts on the laundry together with the shower, so that washing with very little damage and entanglement can be realized. In addition, the washing water amount in the conventional washing machine required about 52 liters, but in this embodiment, the washing can be performed in about 26 liters, and the amount of water used is greatly reduced, and further, the necessary amount of detergent is reduced to 2 minutes. 1 can be used.
[0015]
Next, a second embodiment will be described with reference to FIG. First, the user attaches the net 17 to the inner wall of the dewatering tank 3. The laundry is put into the dehydration tank 3 and a predetermined amount of detergent is put into the detergent case 14 according to the amount of the laundry. Thereafter, the water supply valve 13 is energized, and a predetermined amount of water is supplied into the washing tub 2 together with the detergent in the detergent container 14. After that, the usual washing process is performed. Since the net 17 attached to the inner wall of the dewatering tank 3 has the same shape as the inner wall of the dewatering tank 3, normal cleaning can be performed without any problem.
[0016]
Next, a third embodiment will be described with reference to FIG. First, the user attaches the net 17 along the circulation path 16 so as to have a rotating portion, and places the net 17 along the inner wall of the dewatering tank 3. The laundry is put into the dehydration tank 3 and a predetermined amount of detergent is put into the detergent case 14 according to the amount of the laundry. Thereafter, the water supply valve 13 is energized, and a predetermined amount of water is supplied into the washing tub 2 together with the detergent in the detergent container 14. After that, the usual washing process is performed. Since the net 17 along the inner wall of the dewatering tub 3 is formed in a corrugated shape having convex portions in the vertical direction on the inner wall of the dewatering tub so as to exert the effect of a washing plate, the washing power during normal washing is improved. At the same time, the pulsator 5 is covered for fashionable clothes. Further, since the net 17 is detachably attached to the circulation path 16, the area of the net 17 can be made smaller than that provided outside the circulation path 16, and the movement of the laundry can be improved without applying force to the laundry more than necessary. . Furthermore, it is easy to configure the attachment parts of the net 17.
[0017]
Next, a fourth embodiment will be described with reference to FIGS. First, the user removes the fixing knob 20, removes the net 17 and a part of the circulation path 16 from the inner wall of the dewatering tank 3, and places them on the lower part of the dewatering tank 3 so as to cover the pulsator 5. A circulation path 21 is rotatably held by a rotating shaft provided at the lower part of the circulation path 16. In this embodiment, about 1.2 kg of clothes such as clothes made of delicate materials such as wool and fashionable blouse that easily lose shape are placed on the net 17. A predetermined amount of detergent is put into the detergent container 14 according to the amount of the laundry. Thereafter, the water supply valve 13 is energized to supply water into the washing tub 2 together with the detergent in the detergent container 14. In this embodiment, about 26 liters of water is supplied. In the washing process, the pulsator 5 is rotated by the transmission mechanism 8 and the motor 9 at about 140 rpm, and the circulating water flow generated by the blade 6 is sprayed on the laundry from the lower separation part 22 of the circulation path 16 with shower-like washing water. Wash. Further, the water flow generated by the pulsator 5 passes through the net 17 and penetrates into the clothes, and a very gentle force acts on the laundry together with the shower, so that washing with very little damage and entanglement can be realized. In addition, the washing water amount in the conventional washing machine required about 52 liters, but in this embodiment, the washing can be performed in about 26 liters, and the amount of water used is greatly reduced, and further, the necessary amount of detergent is reduced to 2 minutes. 1 can be used.
[0018]
Next, a fifth embodiment will be described with reference to FIGS. First, the user places the net 17 in contact with the inner wall at the bottom of the dewatering tub 3 and places about 1.2 kg of delicate laundry on the net 17 in this embodiment. A predetermined amount of detergent is put into the detergent container 14 according to the amount of the laundry. Thereafter, the water supply valve 13 is energized to supply water into the washing tub 2 with about 26 liters together with the detergent in the detergent container 14. In the washing process, the pulsator 5 is rotated at about 140 rpm by the transmission mechanism 8 and the motor 9, and the circulating water flow generated by the blade 6 is used to turn the shower-like washing water from the discharge port 7 into the laundry using the circulation path 16. Wash while spraying. Further, the laundry is pulled downward by the negative pressure generated in the central part of the pulsator generated by the pulsator 5, and the net 17 is constituted by the elastic body 17a, so that it is deformed downward. When the pulsator 5 temporarily stops to change the rotation direction, the negative pressure disappears, and the laundry on the net 17 moves upward by the elasticity of the elastic body 17a. By repeating this, the laundry is moved up and down in the washing water and pushed and washed, and it is possible to realize washing with a strong detergency with little damage and entanglement.
[0019]
Next, a sixth embodiment will be described with reference to FIGS. First, the user places the net 17 on the support cylinder 23 provided in the center of the pulsator 5 so as to be movable up and down, and places about 1.2 kg of delicate laundry on the net 17 in this embodiment. A compression spring 24 biases the support cylinder 23 upward. A predetermined amount of detergent is put into the detergent container 14 according to the amount of the laundry. Thereafter, the water supply valve 13 is energized to supply water into the washing tub 2 with about 26 liters together with the detergent in the detergent container 14. In the washing process, the pulsator 5 is rotated at about 140 rpm by the transmission mechanism 8 and the motor 9, and the circulating water flow generated by the blade 6 is used to turn the shower-like washing water from the discharge port 7 into the laundry using the circulation path 16. Wash while spraying. Also, the laundry is pulled downward by the negative pressure generated at the center of the pulsator generated by the pulsator 5, the support cylinder 23 is also moved downward, and the laundry on the net 17 is submerged in the washing water. When the pulsator 5 pauses to change the direction of rotation, the negative pressure disappears, the net 17 is lifted by the compression spring 24, and the laundry moves upward. By repeating this, the laundry is moved up and down stably in the washing water and pushed and washed, and it is possible to realize washing with very little damage and entanglement and strong washing power. With the compression spring, it is possible to reliably push back the net, particularly from the bottom to the top, so that the vertical movement of the clothing can be realized with certainty.
[0020]
Next, a seventh embodiment will be described with reference to FIG. A spiral spring 25 presses the net 17 against the inner wall of the dewatering tank 3, and a connector 26 rotatably connects the lower end of the net 17 to the inner wall of the dewatering tank 3. When the user attempts to set the net 17 on the pulsator 5 and separates the net 17 from the inner wall of the dewatering tank 3, the net will naturally move if the force to descend by the weight of the net 17 is greater than the urging force of the spiral spring. 17 is lowered and set. When returning the net 17 to the original position, the net 17 may be lifted up to a position where the urging force of the spiral spring 25 becomes larger than the downward force of the net 17. Further, a centrifugal force generated by rotating the dewatering tank 3 may be used.
[0021]
Next, an eighth embodiment will be described with reference to FIG. The net 17 is formed by folding the net when it is worn and storing it along the inner wall, and extending the folded net when it is removed, or having a convex shape below the dewatering tank 3 when the net is removed.
[0022]
Next, a ninth embodiment will be described with reference to FIG. 27 is a wire for moving the net 17 up and down, 28 is a lifting piece to which the wire 27 is connected, 29 is a ring-like lifting ring that contacts the lifting piece 28 and moves up and down the inner wall of the outer tub 2 by a lifting motor 30 and a lifting wire 31. Move up and down. A pulley 32 holds the wire 27 in each part. 33 is a lead wire for energizing the elevating motor 30, and 34 is a control circuit. Reference numeral 35 denotes automatic attachment / detachment means configured as described above. When washing clothes such as clothes made of delicate materials such as wool or fashionable blouse, the control circuit 34 energizes the elevating motor 30 and the elevating ring 29 is lowered, and the elevating piece 28 is also moved downward. The net 17 is lowered and set. After washing is completed, the lifting motor 30 winds up the lifting wire 31, raises the lifting ring 29, moves the lifting piece 28 upward, pulls the wire 27, and moves the net 17 along the inner wall of the dewatering tank 3. Since the elevating piece 28 and the elevating ring 29 are slidable, the wire 27 and the elevating wire 31 are not twisted even if the dewatering tank 3 rotates.
[0023]
【The invention's effect】
As described above , according to the first aspect of the present invention, the dewatering tank for storing the laundry, the pulsator provided at the bottom of the dewatering tank, the blade provided at the lower part of the pulsator, A washing tub containing a water tub; a circulation path having a discharge port for circulating washing water above the dehydration tub and discharging it into the dehydration tub; a net provided along the inner wall of the dehydration tub; A fixing tool for fixing the fixing tool to the inner wall of the dehydration tank, the fixing tool is provided on the upper and lower portions of the inner wall of the dehydration tank, and the net is held on the inner wall of the dehydration tank by the fixing tool, The upper fixing tool is removed so that it can be rotated so as to cover the top of the pulsator, and the washing water is circulated through the circulation path by the blade and discharged to the laundry on the net in the dewatering tub. from, laundry roots Mechanical force or physical force acting on the laundry rather than touching the direct washing means placed on the bets becomes possible to extremely small. Moreover, since clothes do not move during washing | cleaning, washing without entanglement is attained.
[0024]
According to the invention described in claim 2, since the net has a corrugated shape having convex portions in the vertical direction of the inner wall of the dewatering tank, the cleaning ability during normal cleaning can be improved.
[0025]
According to a third aspect of the present invention, the net is provided in a circulation path that is rotatably held on the inner wall of the dewatering tank by a rotating shaft of a fixture provided at a lower portion, and the net is connected to the circulation path. The pulsator is rotated so as to cover the top of the pulsator, and the washing water circulated through the circulation path by the blade is discharged from the lower separation part of the circulation path to the laundry on the net. When the washing liquid is applied to the clothes, the clothes and the washing liquid can be surely brought into contact with each other, and the washing performance can be improved.
[Brief description of the drawings]
FIG. 1 is a side sectional view of a fully automatic washing machine showing a first embodiment of the present invention. FIG. 2 is a side sectional view of a dewatering tank of the same embodiment. FIG. 3 shows a second embodiment of the present invention. FIG. 4 is a side sectional view of a dewatering tank showing a third embodiment of the present invention. FIG. 5 is a side sectional view of a fully automatic washing machine showing a fourth embodiment of the present invention. 6] Side sectional view of the dewatering tank of the same embodiment [Fig. 7] Side sectional view of the main part of the fully automatic washing machine showing the fifth embodiment of the present invention [Fig. 8] Essential part of the fully automatic washing machine of the same embodiment FIG. 9 is a side sectional view of a main part of a fully automatic washing machine showing a sixth embodiment of the present invention. FIG. 10 is a side sectional view of a main part of a fully automatic washing machine of the same embodiment. FIG. 12 is a side sectional view of a dewatering tank showing a seventh embodiment of the present invention. FIG. 12 is a partially cutaway plan view of a fully automatic washing machine showing an eighth embodiment of the present invention. Side sectional view of a fully automatic washing machine showing a ninth embodiment [FIG. 14] Side sectional view of a conventional fully automatic washing machine [Explanation of symbols]
DESCRIPTION OF SYMBOLS 2 Washing tank 3 Dehydration tank 5 Washing means 6 Blade 16 Circulation path 17 Net 17a Elastic body 23 Support cylinder 25 Spiral spring 26 Connector 35 Automatic attachment / detachment means

Claims (3)

A dehydration tank for storing laundry; a pulsator provided at the bottom of the dehydration tank; a blade provided at a lower portion of the pulsator; a laundry tank containing the dehydration tank; and a wash water circulated above the dehydration tank. And a fixing path for fixing the net to the inner wall of the dehydration tank, the circulation path having a discharge port for discharging into the dehydration tank, a net provided along the inner wall of the dehydration tank, and the fixing tool. Are provided on the upper and lower portions of the inner wall of the dewatering tank, and the net is held on the inner wall of the dewatering tank by the fixture and can be rotated so as to cover the pulsator by removing the upper fixture. The washing machine circulates washing water through the circulation path by the blade and discharges the washing water to the laundry on the net in the dewatering tub . The washing machine according to claim 1, wherein the net is formed into a corrugated plate shape having convex portions in the vertical direction of the inner wall of the dewatering tank . The net is provided in a circulation path rotatably held on the inner wall of the dehydration tank by a rotation shaft of a fixing tool provided in the lower part, and the net is rotated so as to cover the pulsator together with the circulation path. The washing machine according to claim 1 or 2 , wherein washing water circulated through the circulation path by the blade is discharged from the lower separation part of the circulation path to the laundry on the net .

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