KR101492500B1 - Drum-type washing machine - Google Patents

Abstract

An outer tub 20 which is supported in the housing 1 and stores washing water therein; an inner tub 10 which is contained in the outer tub 20 and accommodates the laundry; And a water supply means (12) for supplying water to the outer tank (20), wherein in the drum type washing machine (S1) having a washing process, a rinsing process and a dewatering process, the water supply means , The inner tank 10 was rotated by the driving device M at a rotational speed higher than the washing process in a state in which a predetermined amount of water was collected in the outer tub 20.

Description

[0001] DRUM-TYPE WASHING MACHINE [0002]

The present invention relates to a drum type washing machine having a function of cleaning a bath.

In the drum type washing machine, contamination adheres to the inner tank or the outer tank, so that a course for the purpose of crude washing may be set separately from the washing operation. However, in a course for the purpose of cleaning the floor, a cleaning agent is required, and a cleaning operation such as a user's selection of a bath cleaning course is required, which is troublesome.

On the other hand, as a vertical type washing machine, there has been proposed a technique of spraying a cleaning liquid such as water from the supply pipe toward the inner wall surface of the outer tank and spouting toward the outer surface of the inner tank to remove contamination such as soap residue attached to the wall surface (See Patent Document 1).

Japanese Patent Application Laid-Open No. 5-253392

However, since the technique described in Patent Document 1 is a washing machine of a vertical type, the upper part of the outer tank is opened, and the cleaning liquid is injected downward from a supply pipe provided on the upper part of the outer tank. Therefore, contamination can be reduced only on the side of the outer tank located below the supply pipe.

SUMMARY OF THE INVENTION It is an object of the present invention to solve the above-mentioned conventional problems, and to provide a drum type washing machine capable of preventing the contamination on the inner wall surface on the upper side of the outer tank.

The present invention relates to a washing machine comprising: an outer tub which is supported in a housing and stores laundry water therein; a drum which is contained in the outer tub and accommodates laundry; a driving device that rotates the drum; A washing machine comprising: a drum washing machine having a washing step, a rinsing step and a dewatering step, wherein in a state in which a predetermined amount of water is collected by the water supplying means from the end of the washing step to the start of the dewatering step, The drum is rotated by the driving device at a rotation speed higher than the rotation speed of the drum, and the water collected in the outer tub is pulled up.

According to the present invention, it is possible to provide a drum type washing machine capable of preventing the contamination on the inner wall surface on the upper side of the outer tank.

1 is a perspective view showing an appearance of a drum type washing machine according to a first embodiment;
2 is a side view showing the internal structure of the drum type washing machine according to the first embodiment;
3 is a perspective view showing the internal structure of the drum type washing machine according to the first embodiment.
Fig. 4 is a rear view showing the internal structure of the drum type washing machine according to the first embodiment; Fig.
5 is a perspective view showing a connection state of a water supply electromagnetic valve, a cleansing water supply hose, and a water drop hose.
6 is a longitudinal sectional view of the outer tank water supply joint.
7 is a side view showing the positional relationship between the washing water supply hose and the water dropping hose.
8 is a plan view showing the arrangement of nozzles on the outer cover side of the drum type washing machine according to the first embodiment.
9 is a sectional view taken along line AA in Fig.
Fig. 10 is a front view, Fig. 10 (b) is a side view, Fig. 10 (c) is a plan view, and Fig. 10 (d) is a bottom view.
11 is an enlarged cross-sectional view showing the flow of water by the nozzle on the outer tub cover side.
12 is a plan view schematically showing a cleaning range by a nozzle on the outer tub cover side.
13 is a block diagram showing a drum type washing machine.
14 is a flowchart showing main control at the time of operation of the drum type washing machine.
15 is a flowchart showing the control in the crude cleaning step 1. Fig.
16 is a flowchart showing the control in the dehydration process 1. Fig.
17 is a flowchart showing the control in the crude cleaning step 2. Fig.
18 is a flowchart showing the control in the dewatering step 2. Fig.
19 is an overall process chart showing opening and closing operations of various water supply electromagnetic valves.
20 is a view showing a webbing attached to the back of the drum;
21 is a view showing details of a web portion;

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments for carrying out the present invention (hereinafter referred to as " embodiments ") will be described in detail with reference to the drawings as appropriate. Hereinafter, a drum type washing machine (hereinafter referred to as a washing machine) capable of performing the steps from washing to drying will be described as an example. In the following, the description will be made with reference to the direction when the washing machine S1 is viewed from the front.

(First Embodiment)

As shown in Fig. 1, a washing machine S1 according to the first embodiment has a housing 1 whose outer periphery is formed by combining a steel plate and a resin molded article, and the housing 1 is attached on the base 1h have. The housing 1 includes left and right side plates 1a and 1b (refer to FIG. 4), a front cover 1c, a rear cover 1d (see FIG. 2), a top cover 1e, ). The left and right side plates 1a and 1b are connected to each other by a reinforcing member (not shown), a pre-reinforcing member (not shown) and a candidate steel member (not shown) (1), and has sufficient strength as a housing.

A door 2, which closes a loading port for inserting / removing clothes, etc. (laundry, drying object), is supported at a substantially central portion of the front cover 1c so as to be openable and closable by a hinge provided on the preliminary stiffener. A door opening button 3 for releasing a locking mechanism (not shown) of the door 2 is provided on the front cover 1c in the vicinity of the door 2. The lock mechanism (not shown) is disengaged by pressing the door opening button 3 so that the door 2 is opened and the door 2 is locked by being pressed against the front cover 1c. A preliminary reinforcing material not shown has a circular opening for concentrating the opening 20b (see Fig. 3) of the later-described outer tub 20 (see Fig.

An operation panel 4 having a power switch 4a, operation switches 4b and 4c, a display 4d, and the like is provided at the upper center of the housing 1. [ The operation panel 4 is electrically connected to a control device 60 (see Figs. 2 and 3) provided below the housing 1. Fig. Further, on the left side of the operation panel 4, there is provided a draw-out tray 5 into which a detergent, a softener and the like are inputted.

On the right side of the operation panel 4, a draw-out type dry filter 6 is provided. The drying filter 6 is provided with a mesh filter 6a (see Fig. 3), and the lint and the like are removed. The drying filter 6 is cleaned by pulling out the drying filter 6 and taking out a mesh filter 6a (see Fig. 3). The top cover 1e is provided with a water supply hose connection port 7a from a faucet and an absorption hose connection port 7b with a bathtub residue.

As shown in Fig. 2, the washing machine S1 is provided with an inner drum (drum, rotary drum) 10 as a cylindrical washing and dewatering drum rotatably supported in the housing 1. As shown in Fig. The inner tank 10 has an opening portion 10a for inserting and removing clothes into and out of the front side and a plurality of through holes 10h (see FIG. 11) .

At the periphery of the opening 10a, a balance ring (also referred to as a fluid balancer) 10b integral with the inner tank 10 is provided. The balance ring 10b is formed by enclosing a fluid having a large specific gravity inside the balance ring 10b. When the eccentricity occurs due to the bias of the laundry or the like during rotation of the inner tub 10, And has a function of canceling the eccentricity and maintaining the balance of rotation.

On the inner peripheral wall of the inner tank 10, a plurality of lifters 10c extending in the depth direction (axial direction) are provided. When the inner tank 10 is rotated during washing and drying, clothes or the like are lifted along the peripheral wall by the centrifugal force with the lifter 10c, and the movement as falling down by gravity is repeated. The rotation center O1 of the inner tank 10 is inclined such that the opening 10a side is higher.

The washing machine S1 is provided with a tubular outer tub 20 having a coaxial inner tub 10 and an open front. The outer tank 20 is composed of an outer tank body 21 and an outer tank cover 22. A synthetic resin outer cover 22 is provided in the opening 21s (see Fig. 11) of the front surface of the outer tub main body 21 to enable water storage in the outer tub 20. An opening 22a (see Fig. 8) for inserting and removing clothes and the like is formed in the front (front) center of the outer cover 22. The opening 22a and the opening provided in the pre-stiffener are connected by a packing 23 made of rubber (see Fig. 9). The packing 23 serves to maintain the watertightness of the outer tank 20 and the door 2. [ As a result, leakage of water during washing, rinsing and dewatering is prevented. A drain port 20c is provided at the bottom of the bottom surface of the outer tank 20, and a drain hose 8 is connected.

The distal end portion of the drain hose 8 is connected to a drain hole 101 provided in the bottom surface G. A water drain valve V is installed in the middle of the drain hose 8 and water is collected in the outer tank 20 by closing the water drain valve V to supply water to the outer tank 20. [ Water is discharged to the outside of the air.

The washing machine S1 is provided with a motor M for rotating the inner tank 10 at the center of the rear surface of the outer tank 20 (bottom center). On the other hand, the rotation axis m1 of the motor M passes through the outer tub 20 and is coupled with the metal flange 10e provided on the inner surface of the inner tub 10. The lower portion of the outer tub 20 is supported by a plurality of suspensions 9 (constituted by coil springs and dampers), the lower side of which is supported by the base 1h. The upper portion of the outer tub 20 is supported by an auxiliary spring (not shown) attached to the upper reinforcing member, and is configured to prevent the outer tub 20 from falling in the front-rear direction.

The washing machine S1 is provided with a blowing duct (blowing duct) 30 passing through the inside of the rear face and the inside of the upper face of the housing 1. The blowing duct 30 has a duct 32 extending in the vertical direction on the back side of the outer tub 20 and a duct 33 extending from the upper side of the outer tub 20 forward from the rear side.

An overflow hose 15 is connected to the lower portion of the duct 32 so as to join the drain hose 8 downstream of the drain valve V. [ The upstream end of this hose 15 is connected so as to be located above the later-described bellows 31.

On the downstream side of the duct 33, a blowing fan unit 40 having a fan 41 (blowing means) and a heater 42 (heating means) is provided.

On the other hand, although not shown, a stainless steel plate (heat exchange plate) having a plurality of protrusions is disposed (disposed) in the duct 32, for example, as a water- (Not shown) for flowing cooling water along the wall surface. Cooling-water supply electromagnetic valve 12d is opened so that water-cooling dehumidification functions.

The lower portion of the blowing duct 30 (duct 32) is connected substantially horizontally by a flexible bellows 31 to an outlet 20d provided at the lower portion of the rear surface of the outer tub 20. [

As shown in Fig. 3, the fan 41 is called a so-called turbo fan, and a bladder (not shown) composed of a plurality of blades is accommodated in the fan case 41a, And a flow passage (not shown) of a scroll shape (spiral shape) is formed. An air intake hole (not shown) for sucking air is formed on the outer surface of the fan case 41a at one side of the rotation center of the bladesubstance. An electric motor M1 Respectively.

The heater 42 (see Fig. 2) is constituted by a PTC (Positive Temperature Coefficient) heater or the like and is provided on the downstream side of the scroll-shaped flow path in the fan case 41a. The fan case 41a on the downstream side of the heater 42 is formed with a discharge port (not shown) through which hot air (drying air) generated by the heater 42 is discharged.

The duct 33 (see Fig. 2) has a filter duct 33a. The front surface of the filter duct 33a has an opening, and a draw-out type dry filter 6 is inserted into the opening. The downstream side of the drying filter 6 is connected to an air intake hole (not shown) of the air blowing fan unit 40 and is connected to a discharge port (not shown) of the air blowing fan unit 40 through a hot air duct 35, a bellows 36, And a hot air spray nozzle 37 are connected in this order.

The washing machine S1 has a circulating pump P and circulating hoses H1 and H2 and has a function of circulating the stored water in the outer tub 20. The circulation pump P is disposed below the outer tub 20 and its introduction port is connected to the bottom surface of the outer tub 20 via the circulation hose H1 and the derivation port is connected to the outer tub 20 through the circulation hose H2. And is connected to the side of the cover 22. The water stored in the outer tank 20 is pumped up by the circulation pump P and is sprayed on the upper portion of the laundry in the outer tank 20. [

4, a water supply unit (not shown) having five water supply solenoid valves T, a bath water supply water pump U, a water supply path unit (not shown), and the like are provided at the rear of the tray 5 (Water supply means) is provided. The five series water supply solenoid valve T includes a detergent water supply electromagnetic valve 12a, a finishing water supply electromagnetic valve 12b, an outer tank water supply electromagnetic valve 12c, a cooling water water supply electromagnetic valve 12d, And a solenoid valve 12e (water supply means).

The detergent water supply electromagnetic valve 12a supplies tap water from the water supply hose connection port 7a to a detergent input chamber (not shown) of the tray 5 (see FIG. 3) through a water supply path (not shown). The tap water injected into the detergent dispensing chamber is injected into the outer tub 20 via the inlet hose (not shown) together with the introduced detergent.

The finishing water supply electromagnetic valve 12b supplies tap water from the water supply hose connection port 7a to a finishing agent input chamber (not shown) of the tray 5 (see FIG. 3) through a water supply path . The tap water injected into the finishing agent introducing chamber is injected into the outer tub 20 through the input hose (not shown) together with the finishing agent introduced.

The outer tank water supply electromagnetic valve 12c supplies tap water from the water supply hose connection port 7a into the outer tank 20 from a water supply hose (not shown) through a water supply path (not shown).

The cooling water feed solenoid valve 12d feeds tap water from the water supply hose connection port 7a to a water cooling and dehumidifying mechanism (not shown) of the blowing duct 30 (see FIG. 2) through a water feed path (not shown).

The tank cleaning water supply solenoid valve 12e is a valve for supplying tap water from the water supply hose connection port 7a to the outer tank cover side nozzle 5a through the water supply path (not shown) through the cleaning water supply hose 55 (cleaning water supply pipe) (Water passage member, water supply path).

On the other hand, the number of bathtubs from the absorbing hose connecting port 7b, which is swung to the bath water feed pump U, is supplied into the outer tub 20 from the main hose (not shown) through a water feed path not shown.

As shown in Fig. 5, the five-row water supply solenoid valve T is disposed on the upper left of the outer tub 20. On the other hand, FIG. 5 shows a state in which only five water feed solenoid valves T are pulled out from the water feed unit 12 (see FIG. 4).

A branch joint 54 is connected to a discharge port (not shown) of the tank cleaning water supply solenoid valve 12e through a seal member (an O ring or the like) (not shown) One end of the hose 55 is connected and a water dropping hose 56 (water dropping pipe) is connected to a side surface (circumferential surface) of the branch joint 54.

The rinse water supply hose 55 extends forward along the outer tub main body 21 and extends so as to bend at the center in the lateral direction at the position of the outer tub cover 22 and is provided at the apex portion And is connected to a later-described water supply port 50f1 (see Fig. 8) through a seal member (not shown).

The water dropping hose 56 extends downward from the branch joint 54 and extends while being bent rearward and is connected to the outer tank water supply joint 24 provided at the outer side rear portion of the outer tank 20 (outer tank body 21) . On the other hand, the outer tank water supply joint 24 is connected through a case communicating with a detergent dispensing chamber (not shown) or a finishing agent dispensing chamber (not shown) of the tray 5 and a hood (not shown) .

6, the outer tank joint 24 has a joint 24a connected to the outer tank main body 21 and a joint 24b connected to the outer hose hose L-shaped in side cross section have. A check valve 24c made of rubber is provided at the boundary between the flow path constituted by the joint 24a and the flow path constituted by the joint 24b. This check valve 24c allows fluid only to flow from the oil passage on the side of the joint 24b to the oil passage on the side of the joint 24a and the steam generated in the outer case 20 during the later- (24a) to the joint (24b).

Further, the water dropping hose 56 is connected to the upper portion of the joint 24a. A hose connecting portion 24a1 of a cylindrical shape to which the water dropping hose 56 is connected is formed in this joint 24a. The bottom surface of the hose connecting portion 24a1 is provided with a water discharge hole 24a2 communicating with a flow path inside the joint 24a. On the other hand, this water dropout hole 24a2 corresponds to the outlet to which the water dropping hose 56 (water dropout pipe) is connected. The size of the water dropout hole 24a2 will be described later.

7, the cleansing water supply hose 55 and the water dropping hose 56 are positioned above the cleansing water supply hose 55 in the vertical direction (up-and-down direction) than the water-dropping hose 56 . This makes it possible to prevent the residual water in the cleansing water supply hose 55 from being discharged into the outer tub 20 through the water drop hose 56 so that the cleansing water supply hose 55 is blocked by the residual water freezing .

That is, when the water dropping hose 56 is not provided and the tank cleaning water supply electromagnetic valve 12e and the later outer tank cover side nozzle 50A are directly connected through the cleaning water supply hose 55, The flow of the washing water in the outer tub cover side nozzle 50A and the washing water supply hose 55 is stopped when the washing water is supplied from the side nozzle 50A to close the bath washing water supply electromagnetic valve 12e, The washing water is not discharged from the spray port 50b2 of the nozzle 50A. Therefore, in the present embodiment, the water dropping hose 56 is branched and arranged relative to the washing water supplying hose 55, and the washing water supplying hose 55 is arranged above the water dropping hose 56 in the vertical direction It is possible to prevent the washing water from remaining in the washing water supply hose 55. [

As shown in Fig. 8, on the front side of the outer covering cover 22, there is provided an outer covering cover side nozzle 50A for spraying tap water (cleansing water) for bath cleaning. The outer cover cover-side nozzle 50A is formed of a synthetic resin or the like and has an approximately arcuate shape (arcuate shape) and is provided at an upper portion of the outer cover cover 22. [ The outer cover cover-side nozzle 50A is formed to have a length of about 1/4 of the circumference, and extends from the center to the left and right in the same length. A water supply port 50f1 is formed at a central portion in the circumferential direction of the outer tub cover side nozzle 50A to which a cleaning water supply hose 55 (see Fig. 7) is connected. Through the outer tub cover 22, And protrudes outside the cover 22. On the other hand, a seal member (not shown) such as an O-ring is provided at the boundary between the outer cover 22 and the water supply port 50f1 so as not to leak.

9, the outer cover cover 22 to which the outer cover cover-side nozzle 50A is attached is formed in a shape of a large diameter portion connected to the opening 21s (FIG. 11) of the outer cover body 21 An inclined portion 22c having a reduced diameter toward the front side (front side) with respect to the large-diameter portion 22b, a front portion 22d extending substantially in the vertical direction with respect to the inclined portion 22c, . In the front portion 22d, a convex portion 22e to which the packing 23 is attached protrudes forward. The outer cover cover-side nozzle 50A is disposed so as to be positioned at the front end of the large-diameter portion 22b of the outer cover cover 22. [

10 (a), a plurality of (15 in this embodiment) water spray holes 50b2 (a first water spraying hole 50b2 in the present embodiment) are formed in the front surface 50d of the outer tub cover side nozzle 50A, Is formed. The diameter of the spray port 50b2 (diameter) is, for example, 1.2 mm. On the other hand, the number, position, and pore size of the water spray port 50b2 are not limited to the present embodiment, but can be changed as appropriate.

10B and 10C, a plurality of attaching portions 51A are provided on the upper surface 50e of the outer tub cover side nozzle 50A from the upper surface 50e to the rear side with intervals in the circumferential direction, As shown in Fig. The attachment portion 51A has a rectangular piece portion 51a and a threaded inserting hole 51b is formed in the piece portion 51a. Each attachment portion 51A is formed so as to be flush with the upper surface 50e so that a screw (not shown) is inserted into the insertion hole 51b and screwed to the inner wall surface 22b1 of the outer cover 22 .

10 (d), a spray port 50a2 (second spray port) is formed in the bottom surface 50f of the outer cover cover-side nozzle 50A at a position corresponding to the water feed port 50f1 . On the other hand, in the present embodiment, only one water spray port 50a2 is provided, but it may be provided at a plurality of locations.

On the other hand, the cross sectional area (flow cross sectional area) of the water dropout hole 24a2 is set to 1 (total flow cross sectional area) of the total cross sectional area (total flow cross sectional area) of the fifteen water spray holes 50b2 and one water spray hole 50a2 of the outer bath cover side nozzle 50A (10%). By setting this ratio, it is possible to sufficiently exhibit the water-dropping function. On the other hand, for the purpose of, for example, suppressing the flow rate on the side of the outer cover cover-side nozzle 50A, the number and the diameter of the water spray ports 50a2 and 50b2 may be set to be larger than 1%.

The outer covering cover side nozzle 50A is disposed between the outer covering cover 22 (outer covering 20) and the side surface (circumferential surface) of the inner covering 10 as shown in Fig. The inner tank 10 has a shaft portion 10d (side surface) that is reduced in diameter at the front end portion and the outer tank cover side nozzle 50A is connected to the large diameter portion 22b of the outer tank cover 22, (10d). On the other hand, a balance ring 10b is attached to the inner periphery of the throttle portion 10d.

In the washing machine S1 provided with the outer cover cover side nozzle 50A as described above, the washing water is discharged forward from the spray hole 50b2 as shown by the solid line arrow R1 in Fig. 11, Contacts the inner wall surface 22c1 of the inclined portion 22c, and flows downward along the inner wall surface 22c1.

More specifically, the washing water discharged from the water spray port 50b2 is discharged in a straight line shape so as to touch the inner wall surface 22c1, and radially spread around the position after being contacted. The cleansing water sprinkled on the inner wall surface 22c1 causes the inner wall surface 22c1 of the inclined portion 22c of the outer tub cover 22 and the inner wall surface 22d1 of the front surface portion 22d to move It goes down and flows down.

The cleansing water discharged from the spray port 50a2 touches the throttling portion 10d of the inner tank 10 as indicated by a solid line arrow R2. The washing water sprinkled on the shaft portion 10d is scattered on the inner wall surface 22b1 of the large-diameter portion 22b of the outer tub cover 22 (outer tub 20) by the centrifugal force when the inner tub 10 rotates And also scattered on the inner surface of the outer tub cover 22 behind the throttle portion 10d or on the outer surface 10s of the inner tub 10. On the other hand, one sprinkler 50a2 sprinkled on the inner tank 10 side can sprinkle water on the entire peripheral surface of the throttling portion 10d of the inner tank 10 by spraying while rotating the inner tank 10 It becomes. As described above, by blowing the tap water by the centrifugal force and cleaning the inside cover 22, it is possible to reduce the amount of water to be used as compared with the case where the tap water is flushed out severely.

12, the washing water discharged from the water spray holes 50b2 (see Fig. 10) of the outer tub cover side nozzle 50A to the front (inner wall surface 22b1) of the outer tub cover 22 is radially scattered The washing water from adjacent water spray holes 50b2 is overlapped with each other in the horizontal direction orthogonal to the vertical direction (gravity direction). As a result, when the washing water flows downward, it is possible to eliminate the area where the washing water does not flow on the inner wall surfaces 22c1 and 22d1 of the outer tub cover 22 and to prevent the contamination from remaining in the shape of a fringe have.

On the other hand, as long as the number of the water spray holes 50b2 of the outer bath cover side nozzle 50A is set so that the washing water flows to the entire inner surface of the outer tank cover 22 as described in Fig. 12, , Pore size, and position can be changed appropriately.

Next, the operation of the washing machine S1 of the present embodiment will be described. First, the overall configuration of the washing machine S1 of the present embodiment will be briefly described. 13, the control device (microcomputer) 60 is constituted by a CPU (Central Processing Unit), a ROM (Read Only Memory) storing a program, a RAM (Random Access Memory) An operation button input circuit 62 connected to the various switches 4b and 4c, a water level sensor 63, a temperature sensor 64 and a vibration sensor 65, As shown in FIG. On the other hand, the temperature sensor 64 includes an outside air temperature sensor for detecting the outside air temperature, a temperature sensor for detecting the temperature of the drain hole 20c, and the like.

The control device 60 also controls the rotational speeds of the respective water supply solenoid valves 12a to 12e, the bath water feed water pump U, the drain valve V and the motor M via the respective drive circuits 66 The rotational speed of the fan 41, and the energization (ON / OFF) of the heater 42 are controlled. The control device 60 also controls the display device 4d, the light emitting diode 67 and the buzzer 68 to inform the user of the operating state of the washing machine S1.

The control device 60 starts when the power switch 4a is pressed and the power is turned on, for example, and executes the basic control processing program for washing and drying shown in Figs. 14 to 18, for example. On the other hand, a case where a series of operations from washing to drying is performed will be described with reference to Figs. 14 to 19. Fig.

As shown in Fig. 14, the controller 60 controls the washing process (step S100), rinsing process (step S200), bath cleaning process 1 (step S300-1), dewatering process S400- 1), crude washing step 2 (step S300-2), dewatering step (step S400-2), and drying step (step S500) are executed in this order.

As shown in Fig. 19, in the laundry amount sensing step (S100-1) of the laundry step (S100), the control device (60) rotates the inner tank (10) . On the other hand, the weight of the clothes in the inner tank 10 can be calculated based on the rotational speed and the current value of the motor M. The load for rotating the inner tank 10 is increased due to the increase in the weight of the clothes and a large amount of motor current is required to flow through the motor M so that the weight of the clothes is calculated by the motor current and the rotation speed of the motor M . On the other hand, 25 to 45 rpm (r / min) of the coarse rotation speed shown in the table of Fig. 19 is the rotation speed at the time of internal rotation (excluding dehydration).

In the detergent-dissolved water supply process (S100-2), the controller 60 opens the detergent feedwater electromagnetic valve 12a and supplies tap water to the detergent input chamber (not shown) of the tray 5. [ The tap water injected into the tray 5 is injected into the outer tub 20 through the unidirectional hose (not shown) and the outer tank water supply joint 24 while dissolving the detergent. On the other hand, the control device 60 is closed after the elapse of a predetermined time after the cleansing water supply electromagnetic valve 12a is opened.

The control device 60 drives the circulation pump P while rotating the inner tank 10 while keeping the opening of the detergent feed water solenoid valve 12a in the rotating water feed step S100-3 , And washing water (high-concentration detergent solution) is circulated and water is supplied while spraying washing water on the clothes. On the other hand, here, the inner tank 10 is rotated at a predetermined rotational speed. Further, the control device 60 closes the detergent feedwater solenoid valve 12a after the end of the rotation water supply.

In the previous washing process (S100-4), the control device (60) cleans clothes with a high concentration of detergent solution.

In the cloth quality sensing step (S100-5), the control device 60 calculates the weight of the clothes containing water. The controller 60 then determines the porosity (absorbency) of the clothes from the weight of the clothes calculated in the bulkiness sensing step (1) and the weight of the clothes containing the water calculated in the porcelain sensing step (5) . The following process is executed according to the determined quality of the garment.

In the replenishing water process (S100-6), in accordance with the weight of the clothes calculated in the bulkiness sensing step (1) and the porosity of the clothes judged in the porcelain sensing step (5), the control device (60) (12c) and the crude cleaning water supply electromagnetic valve (12e) are opened to supply water to the inside of the outer tank (20). For example, when water absorbency such as a towel material is high, washing water is supplied in the replenishing water process. On the other hand, after the completion of the water supply, the control device 60 closes the outer tank water supply electromagnetic valve 12c and the tank cleaning water supply electromagnetic valve 12e. In this replenishing water process, the washing water is sprinkled from the nozzle 50A of the outer tub cover by opening the tub cleaning water supply electromagnetic valve 12e. In the washing process up to that time, the upper part of the outer tub cover 22, The detergent component adhered to the front end side portion of the washing machine can be flowed.

In the main washing process (S100-7), the control device (60) cleans the clothes while rotating the inner tank (10) in both forward and reverse directions. When the main washing is finished, the unbalance state of the clothes is monitored, and it is judged whether or not to proceed to dehydration.

In the rinsing step of step S200, the rinsing 1 step and the rinsing 2 step are executed. That is, in the drainage process (S200-1) of the rinse 1, the control device 60 opens the drain valve V and drains the wash water in the outer tub 20. On the other hand, determination of termination of the drainage is made by the detection value of the water level sensor.

In the dewatering process (S200-2), the control device (60) rotates the inner tank (10) at a high speed to drain the washing water contained in the clothes after draining. On the other hand, the rotational speed of the inner tank 10 at the time of dewatering is set to, for example, 1000 rpm or more.

The control device 60 closes the drain valve V and opens the outer tank water supply electromagnetic valve 12c to supply the rinse water to the outer tank 20. In the spin shower process S200-3, The circulation pump P is driven while the inner tank 10 is rotated to spray the rinse water to the clothes in the inner tank 10. [

In the dewatering step (S200-4), the control device (60) stops the circulation pump (P) while rotating the inner tank (10) at a high speed to dehydrate the rinse water from the clothes.

The control device 60 drives the circulation pump P again while rotating the inner tank 10 to spray the rinse water to the clothes in the inner tank 10 in the rotating shower process S200-5.

The control device 60 stops the inner tank 10 and the circulation pump P so as to open the drain valve V so that the rinsing water in the outer tank 20 Respectively.

In the dewatering process (S200-7), the controller (60) rotates the inner tank (10) at a high speed to drain water (rinse water) contained in the clothes after draining.

In the water supply step S200-8, the control device 60 closes the drain valve V, opens the tank cleaning water supply electromagnetic valve 12e, and supplies rinse water to the outer tank 20. [ The control device 60 closes the tank cleaning water supply electromagnetic valve 12e after completion of water supply. In the water supply step, the crude cleaning water supply electromagnetic valve 12e is opened to supply water, whereby the contamination adhered to the upper portion of the outer tub cover 22 can be flowed during the rinsing process.

In the finishing water supply step S200-9, the controller 60 opens the finishing water supply electromagnetic valve 12b and supplies the rinsing water containing the finishing agent to the outer tub 20. The control device 60 closes the finishing agent supply water solenoid valve 12b after finishing of the finishing water supply.

The controller 60 opens the outside water supply water solenoid valve 12c and the bath cleaning water supply electromagnetic valve 12e and supplies rinse water to the outside water tank 20 in the water supply / do. On the other hand, when garments having a high absorbency are put in, and when the water supply amount is insufficient, the rinse water is supplied. In addition, the control device 60 rotates the inner tank 10 while rinsing water is collected in the outer tank 20, and rinses the clothes while stirring the clothes. On the other hand, the rotational speed of the inner tank 10 at this time is set to 35 to 45 rpm.

In the crude cleaning step 1 of the step (S300-1), the step shown in Fig. 15 is executed.

15, in step S301, the controller 60 determines whether or not the inner tank 10 is higher than the rotational speed (for example, 25 rpm) in the washing step and the rotational speed For example, 1000 rpm). On the other hand, the rotational speed is set to, for example, 80 to 300 rpm. However, the present invention is not limited to the above-mentioned rotational speed, and is not limited to the above-mentioned range as long as it can sufficiently clean the inside of the washing tub (inner bath 10, outer bath 20). For example, the upper limit can be appropriately changed according to the maximum possible output (maximum load) of the motor M. In addition, the lower limit can be appropriately changed in accordance with the shape of the inner tank 10 (whether or not the shape is easy to draw water). That is, in the case of a shape in which water can easily be pulled up, water can be drawn up sufficiently even at a lower rotational speed.

In step S301, the control device 60 makes a right rotation at 100 rpm as the first cleaning rotation speed. In the crude cleaning step 1, since the cleaning process is a provisional cleaning process mainly for dropping a large amount of contamination in the lower part of the tank, rinsing water is used instead of fresh water, and the rotational speed of the inner tank 10 is lowered . On the other hand, the water level at this time is the water level (the first cleaning water level) after the rotation water supply / replenishing water is performed in the above-mentioned spinning / replenishing water process (S200-10) The water level becomes 11.5 liters (the first washing water) when the water is supplied. When the inner tank 10 rotates and the washing water (tap water) collected on the bottom surface of the outer tank 20 is pulled upward, the area on the inner left half of the outer tank 20 on the side where the water is pulled up The area on the left half of the inner tank 10 is mainly cleaned. On the other hand, the washing water is blown out from the through holes 10h formed on the side surface of the inner tank 10 to the side surface (circumferential surface) inside the outer tank 20 to be cleaned.

The process proceeds to step S302 where the control device 60 determines whether or not a predetermined time has elapsed after turning the inner tank 10 to the right. On the other hand, the predetermined time is not particularly limited, and is set to, for example, 60 seconds. In step S302, when it is determined that the predetermined time has not elapsed, the control device 60 returns to step S301. If it is determined that the predetermined time has elapsed, the control device 60 proceeds to step S303 do.

In step S303, the control device 60 causes the inner tank 10 to turn left at 100 rpm. As a result, the washing water collected in the outer tub 20 is lifted up as in the case of the right turn, so that the area on the right half of the inner tub 20 and the area on the right half of the inner bath 10 are mainly cleaned. As described above, by making the inner tank 10 rotate clockwise and counterclockwise, it is possible to prevent the occurrence of unevenness in the area to be cleaned.

In step S304, the control device 60 determines whether or not a predetermined time has elapsed since the inner tank 10 was turned to the left by a timer not shown. On the other hand, the predetermined time is not particularly limited, and is set to, for example, 60 seconds in the same manner as described above. In step S304, when it is determined that the predetermined time has not elapsed, the control device 60 returns to step S303. If it is determined that the predetermined time has elapsed, the control device 60 proceeds to step S305 do.

In step S305, the controller 60 keeps rotating the inner tank 10 (left turn, 100 rpm). Then, the drain valve is opened (S300-1-2) and the process proceeds to the dehydration process 1 shown in Fig. On the other hand, the steps S301 to S304 correspond to S300-1-1 in Fig.

As shown in Fig. 16, in step S401, the control device 60 opens the drain valve V in a state in which the rotation of the inner tank 10 is maintained. Accordingly, the used washing water in the outer tank 20 used in the crude washing step 1 is discharged to the outside of the room through the drainage hose 8. [

By performing the crude cleaning step 1 in this manner, contamination and waste in the entire washing tub (inner bath 10, outer bath 20) are removed, and adhesion of dirt and waste can be suppressed at the next operation.

The controller 60 enters the dehydration process 1 (S400-1-1) and the rotational speed of the inner tank 10 is maintained. In step S401, the controller 60 determines whether drainage has been completed. Whether or not the drainage has been completed can be judged based on the detection value of the water level sensor 63. [ In step S401, the control device 60 repeats the step S401 if it is determined that the drainage is not completed (No), and if it is determined that drainage is completed (Yes) S402) and raises the rotational speed of the inner tank 10. Then, the process proceeds to the crude cleaning step 2 shown in Fig.

In the operation of the crude washing step 2, first, in step S306, the spinning speed of the inner tank 10 is set to about 380 rpm, while the spinning speed is increased. At this time, if the degree of dehydration in the conductivity sensor is confirmed, and if it is detected that the water contained in the clothes has decreased to a certain degree, the rotational speed of the inner tank 10 is lowered (step S307). On the other hand, although not shown, the conductivity sensor in this embodiment is composed of a pair of electrodes facing each other, and it is possible to measure the hardness of water between the electrodes. Further, since the conductivity sensor is disposed in the vicinity of the lower side surface of the outer tub 20, the degree of dehydration can be detected with high sensitivity even if the drainage is advanced and the water in the washing tub is slight.

After the dehydration state is detected in the conductivity sensor, the rotation speed of the inner tank 10 is reduced to about 240 rpm, which is the second cleaning rotation speed, and the operation of the cleaning operation is started (step S308). Since the second cleaning rotation speed 240 rpm is higher than the rotation speed of the inner tank 10 in the tank cleaning step 1, water can be drawn up to a place where it can not be reached in the tank cleaning step 1. In step S308, the control device 60 closes the drain valve and opens the tank cleaning water supply solenoid valve 12e to collect the washing water in the outer tub 20. Even when the washing water is collected, the rotation speed of the inner tank 10 is maintained at 240 rpm. The time for collecting the washing water varies depending on the water pressure of the water. The water pressure is judged in relation to the initial water amount and time, water supply time corresponding to the water pressure is selected, and water is supplied by time control. Here, about 7 liters of cleansing water is supplied as the second set of cleansing water to collect the water to the second cleansing level of about 25% of the height of the bottom surface of the inner tank 10. [ This is because, under the condition that the inner tank 10 rotates at 240 rpm, the washing water can flow in the entire inner surface of the outer tank 20 and the outer tank cover 22 when the amount of the washing water is about 7 liters.

By this operation, the water collected at the lower part of the outer tank 20 is pulled up by the unevenness of the dewatering hole or the like existing outside the inner tank 10 and is brought into contact with the bottom surface or the side surface of the outer tank 20, , And cleans the dirt that can not be completely removed in the cleaning step 1. The upper portion of the outer tub 20 or the upper portion of the outer tub cover 22 to be adhered in the drying step can also be rinsed by this bath cleaning step 2. [ Furthermore, unlike the rinsing water used in the crude washing step 1, since clean water is used, adhesion of powder contamination and the like can be prevented.

In step S308, an operation is also performed to supply water from the bath cleaning water supply solenoid valve 12e to the outer bath cover side nozzle 50A through the washing water supply hose 55. [ Water is sprayed from the water spraying port 50b2 provided on the front surface 50d side of the outer tub cover side nozzle 50A and water is sprayed on the inner wall surface of the outer tub cover 22, Water is sprayed from the water spray port 50a2 provided on the side of the surface 50f to water the side wall surface of the inner tank 10. [ The water sprinkled on the sidewall of the inner tank 10 is scattered toward the outer circumferential direction by the centrifugal force due to the rotation of the inner tank 10 and the inner wall surface of the rear of the outer tank cover 22 and the outer wall surface of the inner tank 10 .

As described above, in the present embodiment, it is possible to prevent contamination on the inner side of the outer tub cover 22 or the like by making use of a shower sprinkled by the outer tub cover-side nozzle 50A, The water gathered at the lower portion of the outer tub 20 is lifted upward to prevent the contamination from adhering to the region near the inner wall surface at the rear position of the outer tub 20 as described above.

On the other hand, in the present embodiment, the second cleaning rotation speed is 240 rpm higher than the first cleaning rotation speed, and the second cleaning water is 7 liters, but the present invention is not limited to this. That is, if the second cleaning speed is higher, the second cleaning water level may be lower. If the second cleaning speed is lowered, the second cleaning water level needs to be higher.

Thus, by changing the conditions of the second and third washing ratios to different conditions, the cleaning effect was verified, and the following results were obtained. First, when the water amount is 4 liters and the rotation speed is 450 rpm, almost water does not reach the upper part of the outer cover 22, but when the water amount is 5 liters and the rotation speed is 400 rpm, The water of. In the case where the quantity of water is 6 liters and the rotating speed is 330 rpm, the area sprayed on the inner surface of the outer tub cover 22 increases, the quantity is 7 liters and the rotating speed is 240 rpm. The inner surface of the outer tub cover 22 could be cleanly washed to the corner when the amount of water was 200 rpm and the quantity was 9 liters and the rotation speed was 160 rpm. In addition, when the water content is 10 liters, the rotation speed is 160 rpm, and the water amount is 11.5 liters and the rotation speed is 130 rpm, the inner surface of the outer cover 22 can be washed cleanly, but some of the water overflows .

Therefore, in order to obtain the crude cleaning effect, at least 5 liters of water is required, and in order to obtain a high crude cleaning effect, 7 liters or more is required. However, considering water saving property, it is preferably 9 liters or less. On the other hand, with regard to the rotational speed, if the water amount is increased to 11.5 liters or more without taking water-saving property into account, the effect of crude washing can be obtained if the water amount is 130 rpm or more. However, since there is a possibility that the rotational speed coinciding with the primary resonance point of about 150 rpm, the tertiary resonance point of from about 300 rpm to about 400 rpm, and the vibration may increase, the rotational speed may be set to be close to 300 rpm from 160 rpm. It is also possible to prevent generation of secondary resonance points by avoiding around 200 rpm. Therefore, it can be seen that water can be saved and the effect of crude cleaning can be kept high when the water content is 7 liters and the rotation speed is 240 rpm.

On the other hand, in the present embodiment, a method of automatically cleaning off sebum contamination and detergent residue by combining a shower by the outer bath cover side nozzle 50A and a raising of water collected in the outer bath 20, Even if a shower using the shower head 50A is not used, the effect of washing away contamination can be expected to some extent. In this case, for supplying water into the outer tub 20 in step S308, a water supply valve other than the crude cleaning water supply electromagnetic valve 12e may be used. However, when the valve is operated with a valve having a small water supply flow rate, such as the finishing water supply electromagnetic valve 12b and the cooling water supply electromagnetic valve 12d, the water supply time is increased and the operation time becomes longer, 12a or the outer tank water supply electromagnetic valve 12c are preferable.

In addition, the most likely contamination remains in the tank is the inner bottom surface of the outer tank 20, and there is a possibility that the water line (water line) may occur near a certain level. This water line is stuck in the washing process and the rinsing process, and is contamination which is difficult to flow even in the subsequent cleaning operation. Therefore, in the present embodiment, the mechanical force of the webbing portion 70 formed by providing projections on the back surface of the inner tank 10 is used in order to drop the waterline. The webbing portion 70 has a shape extending in the radial direction in the vicinity of the outer peripheral side of the flange on the bottom surface of the inner tank 10. The waterbroom portion 70 generates water flow by touching the water surface, It becomes possible to drop. Instead of installing the webbing unit 70, a nozzle for sprinkling water may be separately provided between the back surface of the inner tank 10 and the bottom surface of the outer tank 10. [

Next, when sufficient washing water is supplied to the bath, the bath washing water supply electromagnetic valve 12e is closed in step S309, but the second bath washing rotational speed of the bathtub 10 is maintained (30 seconds) The water gathered in the outer tub 20 is continued to be lifted to prevent the occurrence of a bias in the area to be cleaned. In the present embodiment, the inner tank 10 is rotated in one direction by the second cleaning rotation speed so as not to lengthen the operation time. However, the rotation direction may be reversed after the lapse of a predetermined time, The control may be made to reduce the washing irregularity.

In the subsequent step S311, while the rotational speed of the inner tank 10 is maintained, the drain valve is opened to drain the washing water. In order to drain water while maintaining the rotational speed, it is possible to drain water without contamination of washing water containing contaminants.

When the drainage of the washing water is completed, the drain valve is closed again and the bath washing water supply electromagnetic valve 12e is opened again to supply water of about 2.5 liters of tap water (step S313). Under the condition that the rotation speed of the inner tank 10 is 240 rpm (equal to the amount of the second cleaning water), the 2.5-liter cleaning water (third cleaning water) is difficult to spread to the entire inner side of the outer tank cover 22, The amount of washing water can be made to flow through the entire inner bottom surface of the washing tank 20. As described above, since the inner bottom surface of the outer tub 20, which is susceptible to contamination, is cleaned with repeated fresh water, the contamination can be surely dropped. In addition, since the amount of water used at this time is smaller than that of the second cleaning water, the water is saved. On the other hand, even in this step S313, water is supplied to the outer tank cover-side nozzle 50A from the tank cleaning water supply electromagnetic valve 12e and sprayed to the outer tank cover 22 or the like.

Next, when sufficient rinse water is supplied to the bath, the bath cleaning water supply electromagnetic valve 12e is closed in step S314, but the bath washing rotational speed of the inner bath 10 is maintained (30 seconds). When the predetermined time has elapsed (step S315), the washing water is drained by opening the drain valve while maintaining the rotational speed of the inner tank 10 (step S316). As described above, by using clean water by replacing the second cleaning water and the third cleaning water, the effect of cleaning the substrate is improved.

On the other hand, the steps S308 to S310 correspond to S300-2-1 (the group cleaning water supply 1) in Fig. 19, and the steps S311 and S312 correspond to S300-2-2 , Steps S313 to S315 correspond to S300-2-3 (cleaning cleaning water number 2) in Fig. 19, and step S316 corresponds to S300-2-4 (multiples) in Fig.

Further, the process proceeds to the dehydration process 2 (S400-2) shown in Fig. When drainage is completed in step S403, after the final dewatering process is performed for a predetermined time, the drain valve V is opened and the process proceeds to the drying process (S500). Then, when the operation of the drying step (S500) is completed, the drain valve (V) is closed.

In this way, when shifting from the crude cleaning processes 1 and 2 (S300-1 and S300-2) to the dehydration processes 1 and 2 (S400-1 and S400-2), while maintaining the rotation of the inner tank 10, The operation time can be shortened. That is, when the rotation of the inner tank 10 is stopped before the dewatering process, it is necessary to raise the rotation speed while balancing the inner tank 10 at the start of the dewatering process, It will take time until. By not stopping the rotation of the inner tank 10 in the crude cleaning step as in the present embodiment, it is possible to omit the time for balancing and to shorten the operation time.

In the drying step S500, the control device 60 opens the cooling water feed electromagnetic valve 12d to energize the heater 42 to drive the fan 41. [ Thus, the steam generated from the clothes is removed by the water-cooling dehumidifying member (not shown) (dehumidified) and heated by the heater 42, and then dried air is returned to the inner tank 10.

On the other hand, also in the drying step, it is also possible to remove the dust adhered in the drying operation by conducting the crude cleaning. On the other hand, a process of confirming that no clothes remain in the inner tank 10 is performed. For example, the user can open the door 2 to take out the clothes, close the door 2, and press a predetermined button (for example, a start button) to start the washing process. Incidentally, since the clothes are not put in, the inner tank 10 can be rotated at a high speed, the water can be rotated in a small amount, and the water saving performance can be enhanced.

As described above, in the washing machine S1, the outer covering cover 22 (outer covering 20) and the swinging portion 10d (outer covering 20) of the inner covering 10 are provided at the upper portion of the outer covering cover 22 (outer covering 20) The cleaning water supplied from the tank cleaning water supply electromagnetic valve 12e (water supply means) is supplied to the outer tank cover side nozzle 50A (water channel member) through the cleaning water supply hose 55 It is possible to remove dirt and waste attached to the inner surface of the outer covering cover 22 or the front surface of the inner tank 10 and to wash the inner surface of the outer tank 20 ) Can be kept clean. In this way, it is possible to inhibit the contamination and the adhesion of the garbage, thereby making it possible to suppress the growth of the mold and the generation of the odor. It is also possible to prevent or suppress the attachment of the garbage to the laundry during washing.

In the present embodiment, the water dropping hose 56 is branched and connected to the washing water supply hose 55 so that the washing water supply hose 55 is positioned above the water dropping hose 56 in the vertical direction It is possible to prevent the washing water from remaining in the washing water supply hose 55. As a result, it is possible to prevent the washing water supply hose 55 from being blocked by freezing, and to prevent the washing machine S1 from being defective due to clogging.

Since the branched portions of the cleansing water supply hose 55 and the water dropping hose 56 are positioned in the vicinity of the crude clean water supply electromagnetic valve 12e, the cleansing water remaining in the cleansing water supply hose 55 can be reduced .

In addition, since the dedicated tank cleaning water supply solenoid valve 12e is provided, the function of the tank cleaning is not damaged. On the other hand, the cleaning water supply hose 55 is not limited to the structure in which it is connected to the dedicated clean water feed solenoid valve 12e, and a switching valve may be provided downstream of the other water supply electromagnetic valve and branched.

The control device 60 includes a control device 60 that controls the motor M and the cleaning water feed electromagnetic valve 12e so that the control device 60 can control the washing water supply Since the motor M is controlled to control the valve 12e so as to wash the inner tank 10 and rotate at a rotational speed higher than the rotational speed at the time of the process, It is possible to clean the entire inside of the washing tub (inner bath 10, outer bath 20) by raising the washing water collected in the outer bath 20.

On the other hand, when the washing course or the washing / drying course is started in a state in which the predetermined group washing button is set to ON in the group washing step 1 (S300-1) and the group washing step 2 (S300-2) And when the washing course or the washing / drying course is started in the state in which it is set to the OFF state, the ordinary washing operation or the washing / drying operation is performed by omitting these washing steps. Therefore, if the crude cleaning is set to ON, water can be automatically flowed into the bath wall during the course of the washing course or the washing / drying course to prevent the contamination from being left without performing a special bath cleaning course different from the washing course or the washing / drying course .

1 Housing
10 My tune (drum)
10d Throttling part (front end side)
12 Water supply unit (water supply means)
12e cleaning water supply solenoid valve (water supply means)
20 outer bath
21 Outer body
22 outer cover
22c1 inner wall surface
24a2 Water outlet hole (outlet)
50A Outer nozzle cover side nozzle (water channel member, water supply path)
50B outer tub main body side nozzle
50a2 Sprinkler (2nd sprinkler)
50b2 Sprinkler (1st sprinkler)
54th quarter joint (branch division)
55 Wash water supply hose (washing water supply pipe)
56 Water Drain Hose
60 control device
70 webbing
M motor (driving device)
S1 Drum type washing machine

Claims (9)

An outer tub supported in the housing and storing wash water therein and opened toward the front of the housing,
A drum which is contained in the outer tub and accommodates the laundry and is opened toward the front of the housing,
A driving device for rotationally driving the drum;
And water supply means for supplying water to the outer tank,
A drum type washing machine having a washing step, a rinsing step and a dewatering step,
The drum is rotated by the driving device at a rotation speed higher than the washing process in a state where a predetermined amount of water is collected in the outer tub by the water supply device from the end of the washing process to the start of the dehydration process, So that the collected water is lifted up to the inner wall surface on the upper side of the outer tub. An outer tub supported in the housing and storing the washing water in the inner space and opening toward the front of the housing;
A drum which is contained in the outer tub and accommodates the laundry and is opened toward the front of the housing,
A driving device for rotationally driving the drum;
And water supply means for supplying water to the outer tank,
A drum type washing machine having a washing step, a rinsing step and a dewatering step,
The drum is rotated by the driving device at a rotation speed higher than that of the washing process in a state in which a predetermined amount of water is collected in the outer tub by the water supply device after discharging the water used for rinsing in the rinsing process, And the water gathered in the outer tub is lifted up to the inner wall surface on the upper side of the outer tub. An outer tub supported in the housing and storing the washing water in the inner space and opening toward the front of the housing;
A drum which is contained in the outer tub and accommodates the laundry and is opened toward the front of the housing,
A driving device for rotationally driving the drum;
And water supply means for supplying water to the outer tank,
A drum type washing machine having a washing step, a rinsing step and a dewatering step,
The drum is rotated at a rotating speed of 80 to 300 rpm by the drive unit in a state where a predetermined amount of water is collected in the outer tank by the water supply unit after discharging the water used for rinsing in the rinsing step, And the water gathered in the outer tub is lifted up to the inner wall surface on the upper side of the outer tub. An outer tub supported in the housing and storing the washing water in the inner space and opening toward the front of the housing;
A drum which is contained in the outer tub and accommodates the laundry and is opened toward the front of the housing,
A driving device for rotationally driving the drum;
And water supply means for supplying water to the outer tank,
A drum type washing machine having a washing step, a rinsing step and a dewatering step,
Wherein the rinsing water used for rinsing in the rinsing step is rotated by the driving device at a higher rotational speed than the washing step to raise the drum to the inner wall surface on the upper side of the outer tub. An outer tub supported in the housing and storing the washing water in the inner space and opening toward the front of the housing;
A drum which is contained in the outer tub and accommodates the laundry and is opened toward the front of the housing,
A driving device for rotationally driving the drum;
And water supply means for supplying water to the outer tank,
A drum type washing machine having a washing step, a rinsing step and a dewatering step,
Wherein the rinsing water used for the rinsing in the rinsing step is rotated by the driving device at a rotating speed of 80 to 300 rpm to raise the drum to the inner wall surface on the upper side of the outer tub. The method according to claim 4 or 5,
The rinsing step includes a first rinsing step of rotating the drum in a state in which water is collected in the outer tank by the water supply means and a second rinsing step in which water is collected again after discharging the water used for the first rinsing step ,
Wherein the rinsing water is water used for the second rinsing. 6. The method according to any one of claims 1 to 5,
Wherein the drum is rotated to collect water collected in the outer tub in a state in which 5 liters or more of water is collected in the outer tub. 6. The method according to any one of claims 1 to 5,
Wherein the drum is rotated clockwise and counterclockwise to pull up the water collected in the outer tub. 6. The method according to any one of claims 1 to 5,
Wherein a webbing is provided on a rear surface of the drum.

Images