KR101724181B1 - Washing machine - Google Patents

Abstract

The washing machine includes a vertical axis type washing tub provided with an agitator at an inner bottom portion thereof, a pump chamber formed at the bottom of the washing tub by providing a pump blade on the back surface of the agitator, The washing machine according to any one of claims 1 to 3, further comprising: a water passage for pumping washing water from the pump chamber and discharging water from the discharge opening into the washing tub; control means for controlling rotation of the stirring body; And a partition plate which is detachably mounted above the discharge port and is capable of executing a delicate course for washing laundry by placing clothes on the partition plate mounted in the washing tub, In the repeating cycle of forward rotation and reverse rotation of the stirring body in the delegate course The time, in the first driving time limit longer than a standard which does not use the partitioning plate course in the case of a washing delicate garments, for driving the stirring member, while preventing damage to the garment increases the cleaning effect.

Description

Washing machine {WASHING MACHINE}

The present invention relates to a washing machine.

In a vertical axis type washing machine provided with an agitator at the inner bottom portion of a washing and dewatering tank, a washing net is placed horizontally above the agitator to wash the delicate clothes, It is thought to wash clothes above. According to this, since the clothes do not need to be directly brought into contact with the agitating body, it is possible to wash the clothes delicately without damaging them.

In the method of washing operation in which laundry detached by water only is washed using a laundry net, clothes damage can be prevented, but the washing effect is not sufficiently obtained.

The present embodiment provides a washing machine capable of enhancing the cleaning effect while preventing damage to the clothes when the laundry is dyed.

The washing machine of this embodiment comprises a vertical axis type washing tub provided with an agitator on the inner bottom portion thereof, a pump chamber formed on the bottom portion of the washing tub by providing a pump blade on the back surface of the agitator, A control unit for controlling the rotation of the agitator and a water hole through which wash water is passed through the outer periphery of the water tank; And a partition plate which is detachably mounted above the agitator and below the discharge port in the washing tub, and can execute a delicatess course for washing laundry by placing clothes on the partition plate mounted in the washing tub And the control means controls the forward and reverse rotations of the stirring body in the delegate course As during the whole time in the repeat cycle, a first drive longer than a standard which does not use the partitioning plate course (period of time) characterized in that to drive the stirring member.

According to the present invention, when washing clothes dyed using a washing machine, it is possible to improve the cleaning effect while preventing damage to the clothes.

Fig. 1 shows a first embodiment and is a longitudinal right side view of a washing machine.
2 is a perspective view of the partition plate.
3 is a block diagram schematically showing an electrical configuration of a washing machine.
4 is a diagram showing a current application pattern to the motor in the first driving time limit.
5 is a diagram showing a current application pattern to the motor in the second drive time limit.
6 is a longitudinal side view schematically showing the manner of discharge of shower water.
7 is a longitudinal side view schematically showing the state of water flow in the washing tub.
8 is a plan view schematically showing the state of the water flow in the upper surface of the partition plate.
Fig. 9 is a flowchart showing the processing procedure of the washing operation for executing the control device.
Fig. 10 is a view corresponding to Fig. 9 showing the second embodiment.
Fig. 11 is a view corresponding to Fig. 4 showing the third embodiment.
Fig. 12 shows a schematic plan view (Fig. 12 (a)) of a partition plate and an enlarged longitudinal sectional view (Fig. 12 (b)) of a main part showing a fourth embodiment.
Fig. 13 is a schematic plan view showing a modified example of three kinds of water hole of the partition plate, showing the fifth embodiment. Fig.
Fig. 14 is a perspective view showing a sixth embodiment in a state in which a partition for a washing machine, which is folded in two, is free-standing.
Fig. 15 is a perspective view as seen from the front surface side in a state in which the partition for a washing machine is opened. Fig.
16 is a perspective view as seen from the back side in a state in which the partition for washing machine is opened.
Fig. 17 is a rear view of the washing machine body from the back side in a state in which the body is opened. Fig.
18 is a perspective view 1 of a partition for a washing machine folded in two.
19 is a plan view of a partition for a washing machine folded in two.
20 is an enlarged sectional view taken along the line X8-X8 in Fig.
21 is a perspective view 2 of a partition for a washing machine folded in two.
Fig. 22 is a view equivalent to Fig. 16 showing a partition for a washing machine according to the seventh embodiment

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a perspective view of a washing machine according to a first embodiment of the present invention; In each embodiment, substantially the same constituent parts are denoted by the same reference numerals, and a description thereof is omitted.

(1) First Embodiment

Hereinafter, a first embodiment will be described with reference to Figs. 1 to 9. Fig. Fig. 1 schematically shows the overall configuration of a vertical axis type washing machine (automatic washing machine) 1 according to the present embodiment. Here, a water tank 3 for storing the washing water is provided in the outer box 2 having a substantially rectangular shape and is elastically supported by the elastic hanging mechanism 4. As shown in Fig. A vertical axis type washing tub 5 is provided in the water tub 3 and a stirring member 6 is provided in an inner bottom portion of the washing tub 5. The washing tank 5 and the stirring body 6 will be described later.

A rotation driving motor 7 is provided on the outer surface of the bottom of the water tub 3 and rotatably drives the washing tub 5 and the stirring body 6 by transmitting the rotation of the motor 7, (8) are provided. At this time, the agitator 6 is connected to the output shaft 7a of the motor 7 and is rotationally driven. The rotation of the motor 7 is transmitted only to the agitator 6 at the time of rinsing and washing the water. When the water is dewatered, the washing tub 5 and the agitator (6). In this case, the stirrer body 6 is rotated in normal and reverse directions during washing, and the washing tub 5 and the stirrer body 6 are integrally rotated at a high speed during dewatering.

A drain hole 9 is formed in the bottom of the water tank 3 and a drain valve 10 and a drain hose 11 are connected to the drain hole 9. An air trap 12 is provided at a part of the drain hole 9 and a water level sensor 13 (only shown in FIG. 3) is connected to the air trap 12. Thus, the water level sensor 13 detects the water level in the washing tub 5.

On the other hand, a top cover 14 is provided on the upper part of the outer box 2. An apparel opening 15 is provided at the substantially central portion of the top cover 14 and an outer lid 16 for opening and closing the apparel opening 15 is provided. A water tub cover 17 is provided on the upper part of the water tub 3. The water tub cover 17 is provided with an inner lid 19 which is located below the garment entrance 15 and has an opening 18 and which opens and closes the opening 18.

The top cover 14 is provided with a water supply valve 20 as a water supply control means and a water main case 21 having a detergent input portion located behind the garment entrance 15. The water supply valve 20 is provided with a hose connection port 22 to which a connection hose connected to a water supply faucet (not shown) is connected to the hose connection port 22. A bellows-shaped water supply hose 23 is connected to the outlet of the injector case 21. The lower end of the water supply hose 23 is located above the washing tub 5 and connected to a water supply port 25 formed in the water tub cover 17. When the water supply valve 20 is opened, tap water is supplied from the water supply port 25 into the washing tub 5 through the connection hose, the water supply valve 20, the main water case 21 and the water supply hose 23. Further, the tap water is mixed with the detergent in the main water case 21 to be washed.

An operation panel 26 which can be operated by a user is provided on the front side of the top cover 14 and a control device 27 as a control means constituted by a microcomputer or the like and located on the back side is provided. As shown in Fig. 3, the operation panel 26 includes various switch input units 28 including a start switch and a course selection key, and a display unit 29 for performing necessary display. The user can instruct the selection of the washing operation course and the start of operation by the operation of the operation panel 26 (switch input unit 28). At this time, in detail, as described later, in this embodiment, in addition to the " standard course " in which a standard washing operation is performed as a course of washing operation, Delegate course "is installed.

Here, the washing tub 5 will be described in detail. As shown in FIG. 1, the washing tub 5 includes a body 30 made of, for example, SUS, having a cylindrical shape with both open upper and lower surfaces opened, and a plastice made of plastic connected to the lower end of the body 30 And a balance ring 32 connected to the upper end of the body 30. As is well known, the balance ring 32 is formed by housing a liquid containing calcium chloride, sodium chloride, or the like as a main component in a body of a hollow circular ring made of plastic.

The bottom bottom 31 is formed in the shape of a circular container and its upper end is coupled to the bottom of the bottom 30 by caulking and screwing. At this time, the rough bottom portion 31 is provided with a top portion 33 located on a plurality of circumferential portions (only one portion is shown) of the upper edge portion and on which a leg portion of a partition plate to be described later is placed. A plurality of dewatering holes (34) are formed in the peripheral wall of the body (30). As described later, in the present embodiment, the dewatering hole 34 is formed in a portion of the circumferential wall portion of the washing tub 5 (the body 30) except for the water passage 37, which will be described later, have.

A circular recessed region in which the agitator 6 is disposed is provided in the inner bottom portion of the washing tank 5 (the bottom bottom 31) so that a pump chamber 35 is formed between the agitator 6 and the bottom consist of. At this time, the agitator 6 has a circular plate shape having a convex portion 6a for generating a rotating water flow on the surface (upper surface), and a plurality of water through holes 6b are formed so as to penetrate the plate surface up and down . A plurality of pump blades 36 are integrally provided on the back surface of the agitator 6. The pump blade 36 has a thin plate shape extending in the radial direction (radial direction) from the center portion. An outflow port 35a (only one port is shown) is provided at three portions of the outer circumferential portion of the pump chamber 35 spaced apart by an angle of 120 degrees.

Three water passage paths 37 are provided in the side wall of the washing tub 5 so that the outflow ports 35a are extended upward and the washing water is pumped from the pump chamber 35 . The water passage 37 has a discharge port 37a at an upper portion of the washing tub 5 (slightly below the balance ring 32). The washing water (the water or the detergent dissolved therein) in the washing tub 5 is discharged from the three outflow ports 35a of the pump chamber 35 toward the outer circumferential direction by the rotation of the stirrer 6 in the pump chamber 35 And is discharged. The washing water is raised (positive water) in the water passage 37 and discharged (sprayed) from the discharge port 37a into the washing tub 5. The flow of water discharged from the discharge port 37a into the washing tub 5 is hereinafter referred to as "shower water flow".

In the present embodiment, the partition plate 38, which is used to perform the washing operation of the delicate course, is detachably mounted (set) in the washing tub 5. 2, the partitioning plate 38 is formed of plastic, and is formed in a substantially disc shape which is entirely fitted to the inner circumferential surface of the washing tub 5, And a water hole 39 through which the water passes is formed. In the present embodiment, the water hole 39 is formed in the inner peripheral portion of the partition plate 38. However, if the plate surface of the partition plate 38 is divided into two portions, that is, the inner peripheral portion (The opening area per unit area) in which the outer peripheral portion is formed, that is, the water supply hole 39 is formed, is larger in the outer peripheral portion.

1, a plurality of leg portions 38a are integrally provided on the outer peripheral portion of the partition plate 38, and as shown in Fig. 1, these leg portions 38a are placed on top of each other (33). Thereby, the partition plate 38 is mounted (set) in the washing tub 5 so as to be positioned above the agitator 6 and below the discharge port 37a so that the upper surface is horizontal. As shown in FIG. 1, a weight 40 is provided at the center of the partition plate 38 on the back (bottom) side, so that the installed partition plate 38 does not float or move.

The delegate course is set up in the washing tub 5 with the partition plate 38 set on the partition plate 38 and the clothes W placed on the partition plate 38. [ In the state where the partition plate 38 is set in the washing tub 5, the washing water can pass through the water hole 39 between the upper surface and the lower surface of the partition plate 38, The clearance formed between the peripheral wall of the partition plate 38 and the peripheral edge of the partition plate 38 and the partition line portion folded into two of the partition plate 38 and the finger hole 38b, It becomes possible.

In this case, although a plurality of dewatering holes 34 are formed in the peripheral wall portion 30 of the washing tub 5, as shown in FIG. 1, And the dewatering hole 34 is not formed in the lower part. A region of the peripheral wall portion (trunk portion 30) of the washing tub 5 where the dehydration hole 34 is not formed is provided just above the mounting position of the partition plate 38. In the above embodiment, the dewatering holes 34 are not formed in the range of the height H (for example, 5 cm) from the upper surface of the partition plate 38, but are formed above the dewatering holes 34. The partition plate 38 is configured to be foldable in two by a hinge portion 41 extending in the radial direction. When not in use, the partition plate 38 is taken out from the washing tub 5 and folded in two .

Fig. 3 schematically shows an electrical configuration of the washing machine 1 having the above-described configuration. The control device 27 for controlling the entire washing machine 1 is provided with a switch input unit 28, a water level sensor 13, a rotation sensor 42 installed in the motor 7 for detecting the rotation speed of the motor 7 And the like are input. The control unit 27 controls the display unit 29 and the buzzer 43 based on these input signals and a control program previously provided and controls the water supply valve 20 and the drain valve 10 ), The motor 7, and the like, and carries out a washing operation consisting of the steps of washing, rinsing, and dewatering.

At this time, as described in the following description of the operation, the control device 27, when the delegate course is selected and instructed by the operation of the operation panel 26 by the user, The clothes W is placed on the laundry 38 to perform washing. The delegate course includes a washing operation and a rinsing operation, and the dewatering operation is performed by a user by manual operation if necessary.

The water level in the washing tank 5 becomes a relatively low level that is a little above the partition plate 38 in the washing cycle of the dancer course and basically the level of the motor 7, And the rotation is repeated. At this time, the controller 27 controls the forward rotation ON, OFF, reverse rotation ON, and OFF rotation of the agitating body 6 at predetermined intervals as a pattern (electric power application to the motor 7) for driving the agitator 6 Repeat. In this embodiment, the ON time within the repetition cycle of the forward rotation and the reverse rotation of the agitator 6 is set to be longer than the first drive time (see FIG. 4) and the second drive time , And the second drive time (see Fig. 5) in which the on time within the repetition period of the forward rotation and the reverse rotation of the agitating body 6 is shorter than the first drive time limit. The period of the second drive time limit is shorter than the period of the first drive time limit.

More specifically, as shown in Fig. 4, in the first drive time limit of the long period, the agitator 6 is repeatedly rotated for 10 seconds, 3 seconds, 10 seconds, and 3 seconds. The maximum number of revolutions (predetermined number of revolutions) is, for example, 145 rpm. At this time, the maximum number of revolutions (predetermined number of revolutions) is 4 seconds for the acceleration from the OFF state to the predetermined number of revolutions and 4 seconds for the deceleration from the predetermined number of revolutions to OFF. That is, the acceleration and deceleration to the predetermined number of revolutions of the stirring body 6 are controlled to be gentler than the acceleration and deceleration of the stirring body 6 in the standard course. That is, although not shown, in the energizing pattern of the standard course, the stirring body 6 is repeatedly rotated for 2 seconds, 1 second, 2 seconds, 1 second, (And deceleration) of 0.4 seconds is required.

As shown in FIG. 5, in the second drive time limit of the short period, the agitator 6 is repeatedly driven (intermittently driven) for 1.6 seconds, 2.1 seconds off, 1.6 seconds reverse, and 2.1 seconds off. At this time, the maximum (predetermined) number of revolutions is, for example, 165 rpm, which is higher than the predetermined number of revolutions (145 rpm) of the first driving time limit. Acceleration and deceleration to the predetermined number of revolutions of the agitator 6 become steeper than acceleration and deceleration of the agitator 6 in the first driving time limit. Concretely, the acceleration from the OFF state to the predetermined number of revolutions is performed in 0.3 seconds, and the deceleration from the predetermined number of revolutions to OFF is controlled to be performed for 0.3 seconds.

Further, in the present embodiment, in the washing process of the delicate course, the controller 27 controls the water supply valve 20 (see FIG. 1) so as to stop the water supply at a predetermined water level lower than the set water level and lower than the partition plate And drives the agitator 6 in the second driving time limit for a predetermined time (for example, several tens of seconds) in a state where the water is supplied to the predetermined water level. Then, after supplying water to a set water level higher than the partition plate, the water is driven at the first drive time limit of the agitator 6, and a washing cycle is executed.

Next, the operation when the dancer course is executed in the washing machine 1 having the above-described structure will be described with reference to Figs. 6 to 9. Fig. As described above, when the user desires to wash clothes W delicately wool sweaters or silk products, for example, the user can mount the partition plate 38 in the washing tub 5 ), And puts the clothes W to be washed on the partition plate 38. Then, a necessary amount of detergent is input to the detergent input unit, and the operation panel 26 (switch input unit 28) is operated to select the delicate course to start the washing operation. The flowchart of Fig. 9 schematically shows the procedure of the process executed by the control device 27 or the like in the delegate course.

That is, first, the power of the washing machine 1 is turned on (step S1), then the partition plate 38 is set (step S2), and the clothes W are placed on the partition plate 38 (Step S3). The power supply of the washing machine 1 may be turned on after the partition plate 38 and the clothes W are set. Thereafter, when the start switch is turned on in the state where the detergent is put in (step S4) (step S5), the washing operation is started. When the washing operation is started, the water supply valve 20 is first turned on in step S6, and washing water containing detergent is supplied into the washing tub 5 (water tub 3). This water supply is performed until the water level in the washing tub 5 becomes a predetermined water level which is slightly lower than the partition plate 38 (step S7), and when the water level reaches the predetermined water level (YES in step S7) The water supply valve 20 is once stopped (step S8).

In the next step S9, the stirrer 6 is intermittently rotated in the forward and reverse directions at a high speed and during a short period of the second drive (see Fig. 5). At this time, the water level in the washing tub 5 is relatively low and does not reach the partition plate 38. However, the water and the detergent are strongly stirred by the rotation of the stirring body 6 at a high speed and a short cycle, The bubbles can be generated quickly. By the action of the pump blade 36 of the stirring body 6, the washing water is raised (positive) in the water passage 37 and the shower water can be discharged from the discharge opening 37a into the washing tub 5. In this case, since the acceleration and deceleration to the predetermined number of revolutions of the stirring body 6 are controlled to be relatively steep in the second driving time limit, the shower water can be strongly discharged even with a small amount of water, Water can be sprayed.

At this time, in the case where the clothes W have a relatively high water repellency, such as a wool material, the clothes W may float on the partition plate 38, making it difficult for washing water to penetrate. However, The shower water is poured down on the clothes W on the partition plate 38 before the clothes W laid on the partition plate 38 are lifted up and moved to overlap with each other . Thereby, the washing water can be infiltrated into the clothes W before the full-scale washing is started, and the occurrence of the frame collapse and the uneven washing due to the rise of the clothes W can be suppressed.

Since the constant-rotation drive of the agitator 6 in the second drive time limit is performed in a short cycle with a short on-time, the agitator 6, which is generated when the agitator 6 is driven for a longer time, (Centrifugal force) of the wash water from the outer circumferential side and the water level at the center side becomes too low, so that a further problem of air-born noise can be prevented in advance. It is also possible to prevent the water level sensor 13 from determining that there is no water in the detection of the water level.

When the forward and reverse rotation of the agitator 6 in the second drive time limit is performed for a predetermined time (for example, several tens of seconds), the water supply valve 20 is turned on in the next step S10 and water supply is continued. The water supply valve 20 is turned off (step S12) when the water level in the washing tub 5 has reached the set water level (water level higher than the partition plate 38) (YES in step S11). Then, in the step S13, the agitator 6 is driven at high speed and in the forward and reverse rotations in the first driving period of the long period (see Fig. 4), and the washing operation is executed. This washing operation is continuously executed for a predetermined time (step S14).

7, the water stream generated by the convex portion 6a of the agitator 6 is guided by the partition plate 38 (see FIG. 7) Through the water hole 39 on the outer peripheral side of the partition plate 38 and generates a rotating water flow on the outer peripheral portion on the upper surface side of the partition plate 38. At this time, since the dewatering hole 34 does not exist in the washing tub 5 at the lower part of the partition plate 38, the washing water in the upper part of the stirring body 6 (the lower part of the partition plate 38) It is difficult for the washing water to escape to the outer circumferential side of the washing tub 5 through the dewatering hole 34 and sufficient washing water is supplied to the upper surface side of the partition plate 38 through the water supply hole 39 by the rotation of the stirring body 6 .

Since the water W is formed on the upper surface of the partition plate 38 (because it is difficult to escape downward), the laundry W is prevented from being separated from the partition plate 38 8, the clothes W are rotated by the rotating water flow in the direction of the arrow B (in the direction opposite to that in the reverse rotation) in the forward rotation of the agitator 6, for example, Is rotated so as to rotate in place. Even in this case, the dewatering hole 34 is not formed in the area immediately above the mounting position of the partition plate 38 among the peripheral wall portions of the washing tub 5, so that the washing water dewatering hole 34 on the partition plate 38 It is difficult to escape to the outer circumferential side of the washing tub 5 through the partition plate 38, and becomes as high as possible on the partition plate 38.

6, the wash water pumped from the pump chamber 35 through the water passage 37 is poured down from the discharge port 37a toward the clothes W, and is cleaned like press wash. At this time, since the ON time within the repetition period of the forward rotation and the reverse rotation of the agitator 6 is made long in the first driving time limit, even when the washing water in the washing tub 5 is relatively small, It is possible to sufficiently generate the rotating water flow and sufficiently apply the shower water flow from above. As a result, a sufficient cleaning effect can be obtained while obtaining a water saving effect.

Further, in the first driving time limit, since the acceleration and deceleration to the predetermined number of revolutions of the stirring body 6 are made to be gentle, the shower water on the partition plate 38 can evenly reach the shower water. In other words, the scattering manner (intensity or scattering distance) of the shower water flow is changed by the rotation speed of the pump blade 36. For example, as shown in Fig. 6, when the initial acceleration phase is, for example, 100 to 120 rpm, the shower water flow is in a scattering manner as shown in (1) in Fig. 6, The shower water flow is a scattering method shown in (2) in FIG. 6, and when it is 145 rpm, the shower water flow is a scattering method as shown in (3) in FIG. As a result, washing irregularities can be prevented and the cleaning effect of the clothes W can be enhanced.

By executing the washing process of the delicate course as described above, the clothes W do not directly come into contact with the stirrer 6, and the rubbing on the partition plate 38 is suppressed, It can be washed by rotating water flow. For example, a light sweater can be washed while rotating without breaking the shape. As a result, the clothes W can be smoothly washed while suppressing damage to the clothes W. In addition, a high washing effect can be obtained as a whole by the rotational water flow and the push-washing effect by the washing water (shower water flow) pouring down from above.

According to the present embodiment as described above, the partition plate 38 having the water hole 39 through which the washing water can pass and being dewaterably mounted in the washing tub 5 is provided in the outer peripheral portion, and the partition plate 38, it is possible to execute the delicatess course in which the laundry W is laid on the laundry W, so that the laundry W is prevented from being damaged while the delicatable clothes W are washed, It is possible to obtain an excellent effect.

(2) Second to fourth embodiments and other embodiments

Next, the second to fourth embodiments and other embodiments will be described with reference to Figs. 10 to 13. Fig. In the following embodiments, the same reference numerals are given to the same parts as those in the first embodiment, and new and detailed explanations are omitted. Hereinafter, differences from the first embodiment will be described.

10 is a flowchart schematically showing the procedure of a process executed by the control device 27 or the like in the laundry cycle of the delicate course, showing the second embodiment. In the above embodiment, the controller 27 controls the driving of the agitator 6 in the first driving time limit of the high-speed longitudinal period and the driving of the agitator 6 in the second driving time limit of the high- Alternately. At this time, the continuous drive time (for example, 96 seconds) of the agitator 6 in the second drive time limit is longer than the continuous drive time (for example, 24 seconds) of the agitator 6 in the first drive time limit As shown in Fig.

That is, similarly to the first embodiment, the power of the washing machine 1 is first turned on (step S1), then the partition plate 38 is set (step S2) And the clothes W are placed on the clothes W (step S3). Thereafter, when the start switch is turned on in the state where the detergent is put in (step S4) (step S5), the washing operation is started.

When the washing operation is started, the water supply valve 20 is first turned on in step S21, and the washing water containing detergent is supplied into the washing tub 5 (the water tub 3). This water supply is performed until the water level in the washing tub 5 becomes a set water level which is slightly higher than the partition plate 38 (step S22), and when watering to the set water level is completed (YES in step S22) , The water supply valve 20 is turned off (step S23).

Then, in step S24, the agitator 6 is intermittently rotated in the forward and reverse directions during the second driving time of the high-speed short period (see Fig. 5). Since the acceleration and deceleration to the predetermined number of revolutions of the stirring body 6 are controlled to be relatively steep in the second driving time limit, the shower water flow can be strongly discharged, and the shower water flow can be widely spread to the opposite side of the discharge port 37a So that the clothes W can be washed. The driving of the stirring body 6 in the second driving time limit is continuously executed for a predetermined time (for example, 96 seconds) (step S25).

When a predetermined time has elapsed (YES in step S25), it is determined whether or not the washing time has ended in the next step S26. If the washing time is left (NO in step S26), the agitator 6 is rotated in the forward and reverse directions during the first driving time (see Fig. 4) of the high-speed longitudinal period in step S27. In this first driving time limit, the clothes W are cleaned by the rotating water flow generated on the outer circumferential side on the partition plate 38, and the clothes W are cleaned by the shower water in the state in which the clothes W floats on the partition plate 38 The cleaning is performed by the pressing effect. The driving of the agitator 6 in the first driving time limit is continued for a predetermined time (for example, 24 seconds) (step S28).

When a predetermined time has elapsed (YES in step S28), it is determined whether or not the washing time has ended in the next step S29. (NO in step S29), the process proceeds to step S24, and the forward and reverse rotation drive of the agitating body 6 in the second driving time limit is performed again. In this manner, the driving of the stirring body 6 in the second driving time limit and the driving of the stirring body 6 in the first driving time limit are alternately repeated. Thereafter, when the washing time is ended (YES in step S26 or YES in step S29), the washing cycle is ended (step S30).

According to the second embodiment, since the driving of the agitator 6 in the first driving time limit and the driving of the agitator 6 in the second driving time limit are alternately performed, the rotation in the first driving time limit It is possible to obtain an advantage of a combination of a cleaning effect of washing by water flow and push washing by shower water flow and a cleaning effect by strongly pouring shower water flow in the second driving time limit. As a result, the clothes W widely disposed on the partition plate 38 can be effectively washed.

Since the drive time (96 seconds) of the agitator 6 in the second drive time limit is made longer than the drive time (24 seconds) of the agitator 6 in the first drive time limit, It is possible to prevent the problem of excessive foaming, which occurs when the driving time limit is made too long, while achieving a cleaning effect by combination of both.

Fig. 11 shows a driving pattern (a current-carrying pattern of the motor 7) of the agitator 6 in the first driving time limit according to the third embodiment. The third embodiment differs from the first drive (Fig. 4) of the first embodiment in the following points. In other words, in the first drive time limit of the third embodiment, the same is true in the case where the agitator 6 is repeatedly rotated for 10 seconds, 3 seconds, 10 seconds, and 3 seconds, For example, 165 rpm, and it takes about 1 second for the acceleration from the OFF state to the predetermined rotation speed, and about 1 second for the deceleration from the predetermined rotation speed to OFF.

That is, the acceleration and deceleration to the predetermined number of revolutions of the agitator 6 are abruptly performed in comparison with the first embodiment. According to the third embodiment, by driving the stirrer 6 in the first drive time limit, the rotation number of the stirrer 6 is raised (and descended) instantly, so that strong shower water flow can be obtained. As a result, the cleaning effect in the portion of the clothes W on the partition plate 38 where the shower water flow is applied can be enhanced.

Fig. 12 shows the configuration of the partition plate 51 according to the fourth embodiment, and differs from the partition plate 38 of the first embodiment in the following points. That is, the partitioning plate 51 is formed in a substantially circular plate shape as a whole, and a plurality of relatively large circular water through holes 52 are formed in the outer peripheral portion thereof. The passage of the washing water from the lower side to the upper side (arrow C) is permitted in each of the water supply holes 52 on the upper surface of the partition plate 51 and the reverse flow for regulating passage of the washing water from above to below A check valve 53 is provided.

The backflow prevention valve 53 is disposed so as to cover the upper surface of each water through hole 52 and to cover the upper surface of the mesh 54 as shown in Figure 12 (b) And a rubber plate 55 of a thin plate shape is disposed. These meshes 54 and the rubber plate 55 are in the form of a disk having a larger diameter than the water through holes 52 and the outer peripheral portion thereof is fixed (adhered) to the upper surface peripheral portion of the water through hole 52. 12 (a), the rubber plate 55 is provided with a cutout 55a which is opened upward by the water pressure of the wash water.

The water flow generated by the driving of the stirrer 6 passes through the water flow hole 52 in the direction of the arrow C while opening the check valve 53 by the water pressure at the outer peripheral portion of the lower surface side of the partition plate 51 , And is raised to the upper surface side of the partition plate (51) to generate rotating water flow. At this time, the wash water on the upper surface side of the partition plate 51 becomes less likely to flow downward due to the action of the check valve 53, and becomes high on the partition plate 51 for a long time. According to the third embodiment, the time during which the clothes W are in contact with the washing water on the partitioning plate 51 becomes longer, and the cleaning effect can be further enhanced.

Fig. 13 shows three kinds of partition plates according to the fifth embodiment, and shows three kinds of modification examples different in the shape of the water supply holes and the like. That is, the partition plate 61 shown in Fig. 13 (a) is formed in a substantially circular plate shape as a whole, and a plurality of (a large number of) circular vent holes 62 are formed in the outer periphery of the partition plate 61 have. The partition plate 63 shown in Fig. 13 (b) is formed in a substantially circular plate shape, and has a plurality of (six) elongated hole shapes extending in the circumferential direction The water supply hole 64 is formed.

The partition plate 65 shown in FIG. 13 (c) is formed in a substantially circular plate shape, and a plurality of (12) circular first water through holes 62 located in the outer peripheral portion thereof and relatively large And a plurality of slit-shaped second water-passing holes 66 are formed in the central portion (inner peripheral portion). The partition plates 61, 63, and 65 in Fig. 13 can also form the rotating water flow on the outer peripheral side of the upper surface and collect the washing water on the inner peripheral side, thereby achieving the same effects as those of the first embodiment.

Further, the present invention is not limited to the above-described embodiments, and the following modifications and extensions are possible. That is, in the first embodiment, the supply of water is once stopped at a predetermined water level below the partition plate 38, and the agitator 6 is driven in the second drive time limit. However, The agitating body 6 may be driven at the second driving time limit during the water supply to the set water level in the washing tub 5 at the start. Accordingly, the detergent can be rapidly melted as in the first embodiment, and the washing water can be rapidly formed. In addition, it is possible to prevent a problem such as occurrence of air-born noise or a problem in which the water level sensor 13 determines that there is no water.

In the first embodiment, in the peripheral wall portion of the washing tub 5, the area below the mounting position of the partition plate 38 and just above the mounting position of the partition plate 38 The dewatering hole 34 is not formed in the dewatering hole 34. However, the dewatering hole 34 may be formed to be smaller than the other regions. This also makes it difficult for washing water below the partition plate 38 to escape to the outer circumferential side of the washing tub 5 through the dewatering hole 34 and to allow the wash water accumulated on the partition plate 38 to pass through the dewatering hole 34 5 to the outer circumferential side.

Although not shown, the shape, structure, and material of the partition plate can be changed. For example, instead of folding in two, a single circular plate may be used, or a partition plate may be detachably coupled to a washing tub instead of a weight. The present invention is not limited to the examples of the energization pattern, the time (period), the number of revolutions, the acceleration, and the deceleration of the energization pattern in the first drive time limit or the second drive time limit. In addition, the structure of the washing machine may be configured to install the water channel at two places or at one place, and it can be appropriately changed within the scope not departing from the gist of the invention.

In the drawings, reference numeral 1 denotes a washing machine, 5 denotes a washing machine, 6 denotes a stirrer, 7 denotes a motor, 13 denotes a level sensor, 20 denotes a water supply valve (water supply control means) A control unit (control means) 27, a top portion 33, a dehydration hole 34, a pump chamber 35, a pump blade 36, a water pump 37, 38, 51, 61, 63 and 65 "denote partition plates," 39, 52, 62, 64, 66 "denote water supply holes," 53 "denotes a check valve, and" W "

(3)

Details of the partitioning plate used in the first to third embodiments will be described.

The partition for a washing machine according to the present embodiment is disposed in a substantially horizontal shape in the interior of a washing tub provided with an agitator at an inner bottom portion, above the agitator. The partition for a washing machine includes a partition main body having two plate-like members connected to each other through a connecting portion so as to be foldable to each other, and a partition member provided on an outer peripheral portion in a state where the partition main body is folded in two, And a self-standing ground portion for self-standing on the flat surface of the main body.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a perspective view of a washing machine according to a first embodiment of the present invention; In each embodiment, substantially the same constituent parts are denoted by the same reference numerals, and a description thereof is omitted.

(Sixth Embodiment)

As shown in Figs. 15 to 17, the washing machine partition body 38 (the partition plate 38 in Fig. 2) has a substantially disk shape as a whole. The partition body (partition plate body) 31 of the partition for a washing machine 38 is configured such that two plate-like members 72 can be folded in two through a connecting portion 73 as shown in Figs. 14 to 21 Consists of. Each of the plate-like members 72 has a semicircular plate shape, and a portion corresponding to each string is rotatably connected by a connecting portion 73. As shown in Fig. 17, a plurality of connecting pieces 74 are provided on the back side of each plate-like member 72 on the side corresponding to the strings. The proximal end of each connecting piece 74 is connected to a rib 75 provided on the back side of the plate-like member 72. The ribs 75 are provided so as to face each other with a predetermined gap therebetween.

The connecting pieces 74 are arranged so as to be offset from each other in the two plate-like members 72. Each of the connecting pieces 74 is provided with a connecting shaft 76 which extends in the extending direction of the strings so that the connecting pieces 76 and the connecting pieces 74, 72 are rotatably connected. The connecting shaft 76 is made of metal, for example, stainless steel. Like members 72 are connected by a plurality of connecting pieces 74 and a connecting shaft 76 to form a connecting portion 73 which can be foldably connected to the two plate-like members 72 in two. As shown in Fig. 18, when the partition main body 71 is folded back to the back side, the self-standing earthing portion 74A is directed to the outside on one side of each connecting piece 74, ) Are almost the same height. As shown in Fig. 20, a stepped portion 72a is provided at the end portion on the side of the side of the one plate-like member 72, and the other end of the plate- A contact portion 72b is provided at the end portion on the side of the side plate-shaped member 72. [ When the partition body main body 71 is opened, the abutment portion 72b of the other plate-like member 72 is brought into contact with the stepped portion 72a of the one plate-like member 72, (Not shown) (see Fig. 1). In a state where the partition body 71 is folded in two, the grounding part 74A for self-standing is located on the outer peripheral part of the partition body 71 (see FIG. 18).

A rectangular container-like weight receiving portion 77 is provided at a portion located at the center of the partition main body 71 on the back side of each plate-shaped member 72. A weight 78 (See Fig. 20) are accommodated. The lower opening of the weight receiving portion 77 is closed by a lid 79. [ The cover (79) is screwed by screws (80). In this case, the weight 78 is constituted by a plurality of metal plates, for example, a stainless steel plate. The connection piece 74 in the vicinity of the weight receiving portion 77 of the connecting piece 74 is connected to the side surface of the weight receiving portion 77 at its base end.

A plurality of ribs 81 are provided radially around the weight receiving portion 77 on the back side of each plate-like member 72. In addition, a semicircular rib 82 is provided at the substantially central portion in the radial direction on the back side of each plate-like member 72. The semicircular rib 82 is connected to the distal end of the rib 81. Two engaging jigs 83 are provided at the intermediate portion in the circumferential direction of the semi-circular rib 82. The heights of the ribs 81 and the ribs 82 are set to be almost the same. Each of the engaging jaws 83 is elastically deformable in the radial direction. The corresponding ribs 81 and the ribs 82 are brought into contact with each other and the corresponding engaging jaws 83 are engaged with each other in a state in which the partition body main body 71 is folded on the back side (See Fig. 20). The engaging jig (83) constitutes an engaging means for holding the partition body (71) in a folded state. Further, the ribs 81 and 82 constitute contact means which come into contact with each other when the partition body main body 71 is folded in two.

A plurality of ribs 84 having a height lower than that of the ribs 82 are provided radially outwardly of the semicircular ribs 82 on the back surface side of the plate-like members 72. A leg portion 38a is provided at a plurality of portions on the outer peripheral portion of the back surface side of each plate- Each of the leg portions 38a projects to the back side. As shown in Fig. 1, when the partition body 71 is arranged in the rotary tub (washing tub) 5, the leg portion 38a is formed in a stepped shape receiving portion 86 provided in the rotary tub 5, As shown in Fig. In the state in which the partition body 71 is folded back to the back side, as shown in Figs. 14 and 21, the opposed leg portions 38a are shifted slightly in the circumferential direction.

At the outer peripheral portion of the partition body (71), positioning cutouts (87, 88) are provided. The cut-off portions 87 and 88 are provided at three locations corresponding to the water passage 37. One of the cutouts 88 is located across the two plate-shaped members 72. The three cut portions 87 and 88 are located on the outer peripheral portion of the partition main body 71 in a state where the partition main body 71 is folded in two on the back side. Of these, the cutout 88 positioned over the two plate-shaped members 72 also functions as a self-supporting ground as described later. Near the outer periphery of the two plate-like members 72, a gripping portion 38b (a hole 38b in Fig. 2) formed of three circular holes is provided. The hole of the grip portion 38b is set to a size such that a finger of a person enters.

The two plate-shaped members 72 are formed with a large number of through holes 39 (the through holes 39 in Fig. 2). The hole 39 is formed in a substantially central portion of the partition body 71 so as to be gradually smaller from the middle portion in the radial direction to the outer peripheral portion. The opening area of the hole 39 is also small in the substantially central portion of the partition body 71 and is formed so as to gradually increase from the intermediate portion to the outer peripheral portion in the radial direction. The two plate-shaped members 72 are placed on the surface of the main body 71 at a substantially central portion thereof, and the display portion 92 indicating that this surface is the " surface side " On the lower surface of the lid 79 of the weight receiving portion 77 on the back surface of the two plate-like members 72, as shown in Figs. 16 and 17, (93) are displayed in letters.

In this case, the two plate-like members 72 constituting the partition body 71 are made of polypropylene having a high heat resistance among resins, for example, a polypropylene containing talc. Alternatively, it may be made of polypropylene containing glass fibers.

On the other hand, a case of storing the washing machine without using the partition member for washing machine 38 will be described. In the case of storage, the partition main body 71 is folded in two toward the back side (see Figs. 18 to 21). As a result, the self-standing earthing portion 74A of each connecting piece 74 is positioned to face outward. The ribs 81 and the ribs 82 on the back side of the plate member 72 facing each other are in contact with each other and the lids 79 of the weight storage portion 77 are in contact with each other, (See Fig. 20). As a result, the two plate-like members 72 are held in a folded state in the state of being opposed to each other. At this time, since a relatively large clearance 98 is formed in the outer peripheral portion between the two plate-like members 72 as shown in Figs. 14 and 21, it is possible to prevent fingers from being caught between these plate- can do. At this time, the leg portions 38a (the leg portions 38a in Fig. 2) at the opposite positions in the two plate-like members 72 are shifted in the circumferential direction as shown in Fig. 21, It is possible to prevent the fingers from being caught between the finger grips 38a.

As shown in Fig. 14, the partition main body 71 folded in two can be self-sustained in a stable state in the longitudinal direction by placing the self-standing ground portion 74A on the flat surface 99. [ In this case, since the weight 78 is provided at the center of the partition body 71, the weight 78 is present in the lower central portion of the partition body 71 which is folded in two. Therefore, the center of the partition body 71 including the weight 78 acts on the free-standing earthing portion 74A, and it becomes possible to stand the partition body 71 in a more stable state.

Further, the partition body body 71 folded in two can be self-sustained in a state of being stable in the longitudinal direction even if the cut-away portion 88 is placed on the flat surface 99. In this case, the cut-out portion 88 functions as a self-supporting ground portion. Also in this case, since the center of the weight 78 acts on the portion of the cutout 88 that is downward, it becomes possible to stand the partition body 71 in a more stable state.

According to the embodiment described above, the following operational effects can be obtained.

The partition main body 71 of the washing machine partition body 38 can be folded in two through the connecting portion 73 and the outer peripheral portion of the partition main body 71 in the state of folding the partition main body 71 in two, (71) is provided on the flat surface (99). Thereby, the partition body body 71 folded in two can be made to stand on its own in a stable state, and storage in a relatively small space can be facilitated.

The partition main body 71 is provided with the weight 78 to prevent the partition main body 71 from floating or inadvertently moving in a state where the partition main body 71 is installed in the rotary tub 5 And can be installed in a stable state in the rotary tub 5. In addition, there is an advantage that there is no need to separately provide a holding structure for holding the partition body 71 between the partition body 71 and the rotary tub 5.

The partition main body 71 can be folded to the lower side in the state of being placed in the rotary tub 5, and is not foldable to the upper side. Therefore, even if a load is applied downward from the laundry or the like to the partition body 71 in a state where the partition body 71 is installed in the rotary tub 5, the load is reduced by folding the partition body 71 Since the overlap is a load in a direction opposite to the direction, the partition main body 71 can reliably receive the load. Therefore, it is possible to prevent the partition main body 71 from being folded upward to fall down into the rotary tub 5 during use.

The weight 78 is disposed substantially at the center of the main body 71 of the partition. The center of the partition main body 71 is positioned at the free standing ear portion 74A in the state where the partition main body 71 is folded in two and the free end portion of the partition main body 71 is held in the free standing portion 74A or the cut portion 88, Or the cutout 88, so that the partition body 71 can be self-sustained in a more stable state. By arranging the weight 78 at the substantially central portion of the partition body 71, it is possible to easily make the number of the cylinder receiving holes 39 formed in the partition body 71 smaller in the central portion and larger in the outer peripheral portion .

The partition main body 71 is provided on the lower surface of the two plate-like members 72 in such a manner that the partition main body 71 can be folded to the lower side in a state of being arranged in the rotary tub 5, ). With this configuration, it is possible to prevent the partition body main body 71 folded in two from being inadvertently opened, so that the transportability and the storage property can be further improved.

The partition main body 71 capable of being folded in two is provided with ribs 81 and 82 as contact means which are brought into contact with each other when the two main body parts 71 are folded in two by the back surface 82 are present in the vicinity of the center of the partition body 71 in the present embodiment other than the outer periphery of the plate-like member 72. [ Thereby, a gap 98 is formed between the two folded plate-like members 72 on the outer peripheral side. Therefore, even when the partition body main body 71 is inadvertently folded over during transportation of the partition body 71, it is possible to prevent the finger or the like from being caught in the outer peripheral portion of the plate-like member 72. [

Although the leg portion 38a is provided on the outer peripheral portion of the back surface of the two plate-like members 72, when the two plate-like members 72 are folded and folded, the leg portion 38a thereof is shifted in the circumferential direction It is possible to prevent the fingers and the like from being caught in the leg portion 38a even when the partition body main body 71 is inadvertently folded over during transportation of the partition body main body 71. [

The two plate-like members 72 constituting the partition main body 71) are made of polypropylene or glass fiber containing a material, for example, talc having a high heat resistance among resins, into polypropylene. With such a configuration, in the case where the washing machine has a drying function, it is possible to use the partition body 71 even in the drying operation.

(Seventh Embodiment)

Fig. 22 shows a seventh embodiment. The seventh embodiment is characterized by the following points. The weight accommodating portion 101 is provided in the vicinity of the connecting portion 73 and in the vicinity of the outer peripheral portion on the back side of the two plate members 72 constituting the partition body 71, 101, a weight is also provided, though not shown. The lid 102 is screwed to the weight receiving portion 101 as well. The weights 78 may not be provided in the weight receiving portion 77 in the central portion. In this embodiment, the same operational effects as those of the sixth embodiment can be obtained.

In the drawings, reference numeral 38 denotes a partition for a washing machine, 71 denotes a partition body, 72 denotes a plate member, 73 denotes a connecting portion, 74 denotes a connecting piece, 74A denotes a self- 76 denotes a connecting shaft, 77 denotes a weight receiving portion, 78 denotes a weight, 81, 82 denotes a rib (contact means), 83 denotes an engaging means (engaging means), 38a denotes a leg , "87" is the incision, "88" is the incision (self-supporting ground), "38b" is the grip, "39" is the hole, "98" is the gap, "99" "Represents the weight receiving portion.

While the present invention has been described with reference to several embodiments, it is to be understood that these embodiments are presented by way of illustration and are not intended to limit the scope of the invention. These new embodiments can be implemented in various other forms, and various omissions, substitutions, and alterations can be made without departing from the gist of the invention. These embodiments and their modifications fall within the scope and spirit of the invention and fall within the scope of the invention as defined in the claims and their equivalents.

1: Washing machine 5: Washing machine
6: stirrer 7: motor
13: water level sensor 20: water supply valve (water supply control means)
26: operation panel 27: control device (control means)
33: Rooster 34: Dewatering hole
35: pump chamber 36: pump wing
37: water passage 38, 51, 61, 63, 65: partition plate
38a: Leg portion 38b:
39, 52, 62, 64, 66: water hole 53: backflow prevention valve
W: Apparel 71: Body of the partition body
72: Plate-like member 73:
74: connecting piece 74A:
76: connecting shaft 77:
78: weight 81, 82: rib (contact means)
83: engaging means (engaging means) 87: incision portion
88: incision (self-supporting ground) 98: clearance
99: flat surface 101: weight receiving portion

Claims (18)

A vertical axis type washing tub provided with an agitator at the inner bottom portion,
A pump chamber formed at the bottom of the washing tub by providing a pump blade on the back surface of the stirring body,
A water supply pipe extending vertically from the side wall of the washing tub to pour washing water from the pump chamber and sprinkle water from the discharge opening into the washing tub;
Control means for controlling the rotation of the stirring body, and
And a partition plate that is provided with a water hole through which washing water passes through the outer peripheral portion and is detachably mounted in the washing tub above the stirring member and below the outlet,
And a delicatess course for washing laundry by placing clothes on the partition plate mounted in the washing tub,
Wherein the control means controls the first drive in which, in the delegate course, the on time within a repetition cycle of forward rotation and reverse rotation of the agitator at a water level higher than the partitioning plate is made longer than a standard course not using the partitioning plate Wherein the stirring member is driven at a time limit and at a second driving time limit in which the ON time within the repetition period of the normal rotation and the reverse rotation of the stirring member is made shorter than the first driving time limit at a water level lower than the partitioning plate, Lt; / RTI >
And washing water pumped by the pump blade is sprayed from the discharge port at the time of driving the agitator in the first drive time and the second drive time limit. delete The method according to claim 1,
And water supply control means for controlling water supply in the washing tub,
In the delegate course, the water supply control means stops the water supply at a predetermined water level lower than the set water level and lower than the partition plate,
And the control means drives the agitator for a predetermined period of time in a state of being fed to the predetermined level. The method according to claim 1,
Wherein the controller controls the drive of the agitator in the first drive time limit and the on time in the repetition period of the forward rotation and the reverse rotation of the agitator to be shorter than the first drive time limit in the delegate course And the driving of the agitator in the two-drive time limit. 5. The method of claim 4,
Wherein the control means alternately executes the driving of the stirring member in the first driving time limit and the driving of the stirring member in the second driving time limit in the delegate course. 5. The method of claim 4,
And the continuous drive time of the agitator in the second drive time limit is made longer than the continuous drive time of the agitator in the first drive time limit. A vertical axis type washing tub provided with an agitator at the inner bottom portion,
A pump chamber formed at the bottom of the washing tub by providing a pump blade on the back surface of the stirring body,
A water supply pipe extending vertically from the side wall of the washing tub to pour washing water from the pump chamber and sprinkle water from the discharge opening into the washing tub;
Control means for controlling the rotation of the stirring body, and
And a partition plate that is provided with a water hole through which washing water passes through the outer peripheral portion and is detachably mounted in the washing tub above the stirring member and below the outlet,
And a delicatess course for washing laundry by placing clothes on the partition plate mounted in the washing tub,
The control means drives the agitator in a first drive time limit in which the on time in the repetition period of the normal rotation and the reverse rotation of the agitator in the delegate course is longer than the standard course in which the partition plate is not used And,
Wherein acceleration and deceleration up to a predetermined number of revolutions of the agitator are controlled to be gentler than acceleration and deceleration of the agitator in a standard course not using the partition plate in the first driving time limit. A vertical axis type washing tub provided with an agitator at the inner bottom portion,
A pump chamber formed at the bottom of the washing tub by providing a pump blade on the back surface of the stirring body,
A water supply pipe extending vertically from the side wall of the washing tub to pour washing water from the pump chamber and sprinkle water from the discharge opening into the washing tub;
Control means for controlling the rotation of the stirring body, and
And a partition plate that is provided with a water hole through which washing water passes through the outer peripheral portion and is detachably mounted in the washing tub above the stirring member and below the outlet,
And a delicatess course for washing laundry by placing clothes on the partition plate mounted in the washing tub,
The control means drives the agitator in a first drive time limit in which the on time in the repetition period of the normal rotation and the reverse rotation of the agitator in the delegate course is longer than the standard course in which the partition plate is not used And,
Wherein the controller controls the on time in the repetition cycle of forward rotation and reverse rotation of the agitator during the water supply to the set water level in the washing tub at the start of the washing operation of the delegate course, Driving the agitator at a second driving time limit that is shortened,
And the acceleration and deceleration to the predetermined number of revolutions of the agitator are controlled so as to be steeper than the acceleration and deceleration of the agitator in the first driving time limit in the second driving time limit. A vertical axis type washing tub provided with an agitator at the inner bottom portion,
A pump chamber formed at the bottom of the washing tub by providing a pump blade on the back surface of the stirring body,
A water supply pipe extending vertically from the side wall of the washing tub to pour washing water from the pump chamber and sprinkle water from the discharge opening into the washing tub;
Control means for controlling the rotation of the stirring body, and
And a partition plate that is provided with a water hole through which washing water passes through the outer peripheral portion and is detachably mounted in the washing tub above the stirring member and below the outlet,
And a delicatess course for washing laundry by placing clothes on the partition plate mounted in the washing tub,
The control means drives the agitator in a first drive time limit in which the on time in the repetition period of the normal rotation and the reverse rotation of the agitator in the delegate course is longer than the standard course in which the partition plate is not used And,
Wherein the controller controls the on time in the repetition cycle of forward rotation and reverse rotation of the agitator during the water supply to the set water level in the washing tub at the start of the washing operation of the delegate course, Driving the agitator at a second driving time limit that is shortened,
And the predetermined number of revolutions of the agitator is set to be higher than the number of revolutions in the first driving time limit in the second driving time limit. The method according to claim 1,
Wherein the period of the second driving time limit is shorter than the period of the first driving time limit. The method according to claim 1,
Wherein a plurality of dewatering holes are formed in a circumferential wall portion of the washing tub,
Wherein the dewatering hole is not formed in the peripheral wall portion of the washing tub below the mounting position of the partition plate, or is formed to be smaller than the other region. The method according to claim 1,
Wherein a plurality of dewatering holes are formed in the peripheral wall of the washing tub,
Wherein a region where the dewatering hole is not formed or an area formed to be less than another region is provided immediately above the mounting position of the partition plate among the peripheral wall portions of the washing tub. The method according to claim 1,
Wherein the partition plate
A partition body body having a structure in which two plate-like members are foldably connected to each other through a connecting portion,
And a self-supporting ground portion provided on an outer peripheral portion of the partition body in a state of folding the partition main body in two, and self-supporting the partition body in two folded states on a flat surface. 14. The method of claim 13,
A washer having a weight on a partition plate. The method according to claim 13 or 14,
Wherein the main body of the partition is capable of being folded to the lower side in a state of being disposed in the washing tub and being unable to fold to the upper side. The method according to claim 13 or 14,
And the weight is disposed at a central portion of the main body of the partition. The method according to claim 13 or 14,
Wherein the main body of the partition body is capable of being folded to the lower side in a state where it is disposed in the washing tub, and engaging means for holding the two bottom surfaces of the two plate-like members in engagement with each other and maintaining the folded state. The method according to claim 13 or 14,
Wherein the main body of the partition body is capable of being folded to the lower side in a state in which it is disposed in the washing tub and the lower surface of the two plate-like members is provided with contact means which come into contact with each other when the two bodies are folded, And is present outside the outer periphery of the member.

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