JP2019180655A - Vertical washing machine - Google Patents

Abstract

To provide a vertical washing machine which can improve washing power while reducing time and cost for laundry having a three-dimensional shape.SOLUTION: A vertical washing machine 1 comprises: a washing tub 4; a water pumping-up passage 28 for drawing up washing water at a side of a bottom wall 4B in the washing tub 4 and pouring the washing water from above onto a pillow Q in the washing tub 4; a motor 6; a rotary vane 5 which receives driving force of the motor 6 to be rotated, thereby agitating the pillow Q in the washing tub 4 and feeding the washing water at the side of the bottom wall 4B in the washing tub 4 to the water pumping-up passage 28; a water supply valve 21; and a control part 35. The control part 35 executes: a first washing process in which water is supplied by the water supply valve 21 up to a first water level allowing the pillow Q in the washing tub 4 to move away from the rotary vane 5, and then, the rotary vane 5 is rotated by the motor 6; and a second washing process in which, after the first washing process, the water is supplied by the water supply valve 21 up to a second water level higher than the first water level, and then, rotation and a stop of the rotary vane 5 are alternately repeated.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a vertical washing machine.

  There is a need to wash laundry in three-dimensional shapes such as pillows, cushions, and stuffed animals because dirt may adhere or mites may be generated. In the vertical washing machine described in Patent Literature 1 described below, the stuffed toy is accommodated in a cylindrical net body in a laundry net that is detachably attached to the laundry dewatering tub. Since the net body is held at a predetermined position in the washing and dewatering tub, the stuffed animal in the net body is unlikely to have a portion protruding above the water surface, so that the stuffed animal can be washed evenly. In the purification apparatus described in Patent Document 2 below, a stuffed animal and a pillow are accommodated in a box part and purified by ozone.

JP-A-11-276768 JP 2017-64260 A

  In the vertical washing machine described in Patent Document 1, in order to wash a three-dimensional laundry, it is necessary to put the laundry in and out of the laundry net, and to attach and detach the laundry net to and from the laundry dewatering tub. It also costs money for the laundry net. In the purification apparatus described in Patent Document 2, since water is not used, dirt such as dead mites cannot be washed away from the laundry.

  The present invention has been made under such a background, and an object thereof is to provide a vertical washing machine capable of improving the cleaning power while reducing labor and cost for a three-dimensional laundry.

  The present invention can accommodate three-dimensional laundry such as pillows and cushions in addition to ordinary laundry such as clothes, and a laundry entrance is formed at the upper end and a bottom wall is provided at the lower end to store washing water. A washing tub, a pumping path provided in the washing tub, for pumping up washing water on the bottom wall side in the washing tub and bathing the laundry in the washing tub from above, and a driving means for generating a driving force And the laundry in the washing tub is agitated by rotating by receiving the driving force of the driving means, and the washing water on the bottom wall side in the washing tub is supplied to the pumping path. And the water supply means for supplying water into the washing tub, the water supplied by the water supply means to the first water level at which the laundry in the washing tub is separated from the rotary wing, and then the rotary wing is driven by the driving means. First wash to rotate And a control means for executing a second washing step of alternately rotating and stopping the rotor blades after the first washing step and after the first washing step, water is supplied by the water supply means to a second water level higher than the first water level. Is a vertical washing machine.

  Further, according to the present invention, the washing tub rotates by receiving the driving force of the driving means, and the control means rotates the rotating wings in a state where the laundry in the washing tub touches the rotating wings. Then, the washing tub is dehydrated and rotated by the driving means.

  In the present invention, the vertical washing machine further includes hot air supply means for supplying hot air into the washing tub, and the control means performs the washing by the hot air supply means before the first washing step. Hot air is supplied to the laundry in the tub.

According to the present invention, the three-dimensional laundry is immersed in the washing water in the washing tub supplied to the first water level in the first washing step. In the laundry, the surface of the portion below the water surface is cleaned by being stirred by the rotating rotating member. The surface of the portion of the laundry that protrudes above the surface of the water is washed with the washing water that is pumped up by the pumping path according to the rotation of the rotor blades and bathed from above. Therefore, in the first washing step, the entire surface of the three-dimensional laundry can be washed.
In the second washing step after the first washing step, water is supplied to a second water level higher than the first water level, so that the entire three-dimensional laundry can be immersed in water. In this state, the rotation and rotation of the rotor blades are repeated alternately, so that when the rotor blades are stopped, the washing water penetrates to the inside of the laundry, and when the rotor blades rotate, the dirt inside the laundry is turned into the washing water flow. Can be removed by placing.
As a result, the surface and the inside of the three-dimensional laundry can be washed evenly without using special equipment. That is, it is possible to improve the cleaning power while reducing labor and cost for the three-dimensional laundry.

  Further, according to the present invention, the laundry washed as described above is laid down by a rotating blade that rotates in small increments while touching the laundry. Thereby, since the laundry is not easily biased in the washing tub, the laundry tub is dehydrated and rotated in this state, whereby the three-dimensional laundry can be effectively dehydrated.

  In addition, according to the present invention, hot air is supplied to the laundry having a three-dimensional shape dried in the stage before the first washing step, so that mites hidden in the laundry can be killed by the hot air. By the subsequent first washing step and second washing step, mite carcasses can be washed away from the laundry.

FIG. 1 is a schematic vertical sectional right side view of a vertical washing machine according to an embodiment of the present invention. FIG. 2 is a block diagram showing an electrical configuration of the vertical washing machine. FIG. 3 is a flowchart showing a washing operation executed in the vertical washing machine. FIG. 4 is a flowchart showing the surface washing process in the washing operation. FIG. 5 is a flowchart showing a batting washing process in the washing operation. FIG. 6 is a flowchart showing a dehydration process in the washing operation.

  Embodiments of the present invention will be specifically described below with reference to the drawings. FIG. 1 is a schematic vertical sectional right side view of a vertical washing machine 1 according to an embodiment of the present invention. The up-down direction in FIG. 1 is referred to as the up-down direction Z of the vertical washing machine 1, and the left-right direction in FIG. In the vertical direction Z, the upper side is referred to as the upper side Z1, and the lower side is referred to as the lower side Z2. In the front-rear direction Y, the left side in FIG. 1 is referred to as a front side Y1, and the right side in FIG. 1 is referred to as a rear side Y2.

  The vertical washing machine 1 includes a housing 2, an outer tub 3, a washing tub 4, a rotating blade 5, a motor 6 as an example of a driving unit, a transmission mechanism 7, a guide cover 8, a duct 9, Moreover, the ventilation part 10 and the heating part 11 as an example of a hot air supply means are included.

  The housing | casing 2 is metal, for example, and is formed in a box shape. The portion constituting the upper surface 2 </ b> A and the upper end portion of the rear surface 2 </ b> B in the housing 2 may be detachable from the housing 2 as an upper surface plate separate from the housing 2. The upper surface 2A is formed with an opening 15 that allows the inside and outside of the housing 2 to communicate with each other. A door 16 that opens and closes the opening 15 is provided on the upper surface 2A. In the upper surface 2 </ b> A, an operation unit 17 configured by a liquid crystal operation panel or the like is provided in a region around the opening 15. A user of the vertical washing machine 1 operates the operation unit 17 to freely select an operation condition for a washing operation executed in the vertical washing machine 1 or to perform washing on the vertical washing machine 1. It is possible to instruct the start and stop of driving.

  The outer tub 3 is made of resin, for example, and is formed in a bottomed cylindrical shape. The outer tub 3 borders the substantially cylindrical circumferential wall 3A arranged along the up-down direction Z, the bottom wall 3B blocking the hollow portion of the circumferential wall 3A from the lower side Z2, and the upper edge of the circumferential wall 3A. A ring-shaped annular wall 3C projecting toward the center of the circle of the circumferential wall 3A. Inside the annular wall 3C, an inlet / outlet port 18 communicating with the hollow portion of the circumferential wall 3A from the upper side Z1 is formed. The doorway 18 is opposed to and communicated with the opening 15 of the housing 2 from the lower side Z2. The annular wall 3C is provided with a door 19 for opening and closing the doorway 18. The bottom wall 3B is formed in a disk shape extending substantially horizontally, and a through hole 3D penetrating the bottom wall 3B is formed at a circular center position of the bottom wall 3B.

  Water is stored in the outer tub 3. A water supply channel 20 connected to a tap water tap is connected to the annular wall 3 </ b> C of the outer tub 3 from the upper side Z <b> 1, and tap water is supplied from the water supply channel 20 into the outer tub 3. In the middle of the water supply channel 20, a water supply valve 21 is provided as an example of water supply means. The water supply valve 21 is opened and closed to start or stop water supply. A drainage channel 22 is connected to the bottom wall 3B of the outer tub 3 from the lower side Z2, and the water in the outer tub 3 is discharged from the drainage channel 22 to the outside of the machine. A drain valve 23 as an example of a drain means is provided in the middle of the drain channel 22. The drain valve 23 is opened and closed to start or stop draining.

  The washing tub 4 is made of, for example, metal, is formed in a bottomed cylindrical shape that is slightly smaller than the outer tub 3, and can store laundry therein. The washing tub 4 includes a substantially cylindrical circumferential wall 4A arranged along the vertical direction Z, and a bottom wall 4B provided at the lower end of the washing tub 4 to block the hollow portion of the circumferential wall 4A from the lower side Z2. Have.

  An inner peripheral surface of the circumferential wall 4 </ b> A is an inner peripheral surface of the washing tub 4. At the upper end of the washing tub 4, an entrance / exit 24 bordered by the upper end of the inner peripheral surface of the circumferential wall 4 </ b> A is formed. The entrance / exit 24 is in a state where the hollow portion of the circumferential wall 4 </ b> A is exposed to the upper side Z <b> 1 and communicated with the entrance / exit 18 of the outer tub 3 from the lower side Z <b> 2. The user puts and removes the laundry from the upper side Z <b> 1 with respect to the washing tub 4 through the opened opening 15 and the entrances 18 and 24.

  Examples of the laundry stored in the washing tub 4 include three-dimensional laundry such as pillows, cushions, and stuffed animals in addition to normal laundry such as clothes. The three-dimensional shape here means a lump shape having a certain volume, unlike a relatively flat shape like clothing. Below, it demonstrates paying attention to cylindrical pillow Q as an example of solid laundry. In FIG. 1, a pillow Q1 lying in a horizontally long posture and a pillow Q2 in a vertically long posture are illustrated. In addition, the pillow Q wash | cleaned in one washing operation may be single or multiple.

  The washing tub 4 is accommodated coaxially in the outer tub 3. The washing tub 4 in the state accommodated in the outer tub 3 is rotatable about an axis J extending in the vertical direction Z with its central axis. The axis J is also the center of the outer tub 3, and the rotation direction of the washing tub 4 coincides with the circumferential direction P around the axis J. In the following, the radial direction centered on the axis J is referred to as the radial direction R, the side facing the axis J in the radial direction R is referred to as the radial inner side R1, and the side away from the axis J is referred to as the radial outer side R2. A plurality of through holes 4C are formed in the circumferential wall 4A and the bottom wall 4B of the washing tub 4, and the water in the outer tub 3 can go back and forth between the outer tub 3 and the washing tub 4 through the through holes 4C. . Therefore, the water level in the outer tub 3 matches the water level in the washing tub 4.

  The bottom wall 4B of the washing tub 4 is formed in a disk shape extending substantially parallel to the bottom wall 3B of the outer tub 3 at a distance from the upper side Z1, and is located at a circular center position coincident with the axis J on the bottom wall 4B. Is formed with a through hole 4D that penetrates the bottom wall 4B. The bottom wall 4B is provided with a tubular support shaft 25 that extends to the lower side Z2 along the axis J while surrounding the through hole 4D. The support shaft 25 is inserted through the through hole 3D of the bottom wall 3B of the outer tub 3, and the lower end portion of the support shaft 25 is located on the lower side Z2 with respect to the bottom wall 3B.

  The rotary blade 5 is a so-called pulsator, is formed in a disk shape with the axis J as the center, and is disposed on the bottom wall 4 </ b> B in the washing tub 4. A plurality of raised portions 5 </ b> A are provided on the upper surface of the rotary wing 5 that faces the entrance / exit 24 of the washing tub 4 and are arranged radially with the axis J as the center while protruding upward. On the lower surface of the rotary blade 5, a plurality of back blades 5B arranged radially about the axis J is provided. The rotary blade 5 is provided with a rotary shaft 26 extending from the center of the circle to the lower side Z2 along the axis J. The rotating shaft 26 is inserted through the hollow portion of the support shaft 25, and the lower end portion of the rotating shaft 26 is located on the lower side Z <b> 2 than the bottom wall 3 </ b> B of the outer tub 3.

  The motor 6 is an electric motor such as an inverter motor. The motor 6 is disposed on the lower side Z <b> 2 of the outer tub 3 in the housing 2. The motor 6 has an output shaft 27 that rotates about the axis J, generates a driving force, and outputs it from the output shaft 27. The transmission mechanism 7 is interposed between the lower end portions of the support shaft 25 and the rotating shaft 26 and the upper end portion of the output shaft 27 protruding from the motor 6 to the upper side Z1. The transmission mechanism 7 selectively transmits the driving force output from the output shaft 27 by the motor 6 to one or both of the support shaft 25 and the rotation shaft 26. A known transmission mechanism 7 is used. When the driving force from the motor 6 is transmitted to the support shaft 25 and the rotating shaft 26, the washing tub 4 and the rotating blade 5 receive the driving force of the motor 6 and rotate around the axis J.

  The guide cover 8 has a bowl shape extending from the lower end of the circumferential wall 4A of the washing tub 4 to the upper side Z1 and is made of, for example, resin, and its flat cross section is formed in an arc shape that is convexly curved, for example, radially inward R1. The The upper end portion of the guide cover 8 is disposed at a height position up to the front of the entrance / exit 24. The guide cover 8 is fixed to the circumferential wall 4A so as to cover a portion of the circumferential wall 4A where the through hole 4C is not formed from the radially inner side R1. Thereby, between the guide cover 8 and the circumferential wall 4 </ b> A, a pumping path 28 extending from the lower end portion of the circumferential wall 4 </ b> A to the upper end portion of the guide cover 8 is formed in the washing tub 4. A plurality of guide covers 8 may exist, and in this case, a plurality of pumping paths 28 are also provided.

  The lower end portion of the pumping path 28 is connected to the space S in the lower end portion where the back blade 5B of the rotary blade 5 is disposed in the internal space of the washing tub 4 from the radially outer side R2. The lower end of the pumping path 28 is an inlet 28 </ b> A communicating with the space S. A through hole 8 </ b> A that penetrates the guide cover 8 in the radial direction R is formed in the upper end portion of the guide cover 8. A portion of the upper end portion of the pumping path 28 exposed from the through hole 8A to the radially inner side R1 is an outlet 28B.

  The duct 9 is a channel formed outside the outer tub 3 in the housing 2 and formed in a tubular shape extending in the front-rear direction Y on the upper side Z1 of the annular wall 3C of the outer tub 3, for example. The front end portion of the duct 9 is bent and connected to the upper end portion of the annular wall 3C from the upper side Z1, and the rear end portion of the duct 9 is located at the upper end portion of the rear surface 2B of the housing 2. An exit 9A is formed at a portion connected to the annular wall 3C at the front end portion of the duct 9, and an inlet 9B is formed at a portion located on the rear surface 2B of the housing 2 at the rear end portion of the duct 9. The inside of the duct 9 is in a state communicating with the inside of the outer tub 3 through the outlet 9A, and is in a state communicating with the outside of the vertical washing machine 1 through the inlet 9B.

  The air blowing unit 10 is a so-called fan, and includes a rotary blade 29 disposed inside the duct 9 and a motor (not shown) that rotates the rotary blade 29. When the rotating blades 29 rotate, the air outside the vertical washing machine 1 is sucked into the duct 9 through the inlet 9B as shown by the thick broken arrow, and then the outlet of the washing tub 4 is discharged from the outlet 9A of the duct 9. After being fed into the washing tub 4 from the upper side Z1 through the through-hole 4C and the entrance / exit 24, the flow direction is changed and the air flows to the entrance / exit 24 and the entrance / exit 18 of the upper side Z1. At the tip of the air flowing to the upper side Z1, there is a door 19 in a state where the entrance 18 is closed. For example, the opening 19 </ b> A that is blocked by the filter 30 is formed in the door 19. The air flowing to the upper side Z1 flows out of the outer tub 3 through the opening 19A, and is discharged out of the vertical washing machine 1 through a gap (not shown) provided in the housing 2. Foreign matter such as dust contained in the air is captured by the filter 30. Although different from the present embodiment, the inlet 9 </ b> B may be connected to the outer tub 3 so that air is circulated between the duct 9 and the outer tub 3 to be sent into the washing tub 4.

  The heating unit 11 is a known heater and is disposed inside the duct 9. The heating unit 11 is turned on and energized to generate heat, and heats air sent from the duct 9 into the washing tub 4 to generate hot air. On the other hand, since the heating unit 11 is turned off and the power supply is cut off, the heating unit 11 stops generating heat.

  FIG. 2 is a block diagram showing an electrical configuration of the vertical washing machine 1. Referring to FIG. 2, the vertical washing machine 1 includes a control unit 35 as an example of a control unit. The control unit 35 is configured as a microcomputer including, for example, a CPU 36, a memory 37 such as a ROM or a RAM, and a timer 38 for timing, and is built in the housing 2 (see FIG. 1).

  The vertical washing machine 1 further includes a rotation speed reading device 39 and a water level sensor 40. The rotation speed reading device 39 and the water level sensor 40, and the motor 6, the transmission mechanism 7, the water supply valve 21, the drain valve 23, the blower unit 10, the heating unit 11, and the operation unit 17 described above are connected to the control unit 35. Electrically connected.

  The rotation speed reading device 39 is a device that reads the rotation speed of the motor 6, strictly speaking, the rotation speed of the output shaft 27 of the motor 6, and is constituted by a Hall IC, for example. The rotational speed read by the rotational speed reading device 39 is input to the control unit 35 in real time. The control unit 35 controls the motor 6 so as to rotate at a desired rotational speed by controlling the duty ratio of the voltage applied to the motor 6 based on the input rotational speed. In this embodiment, the number of rotations of the washing tub 4 is the same as the number of rotations of the motor 6, and the number of rotations of the rotary blades 5 is a predetermined constant such as a reduction ratio in the transmission mechanism 7. It is a value obtained by multiplying a number. In any case, the rotation speed reading device 39 also reads the rotation speeds of the washing tub 4 and the rotary blades 5 by reading the rotation speed of the motor 6. The water level sensor 40 is a sensor that detects the water level of the outer tub 3 and the washing tub 4, and the detection result of the water level sensor 40 is input to the control unit 35 in real time.

  The control unit 35 switches the transmission destination of the driving force of the motor 6 to one or both of the support shaft 25 and the rotation shaft 26 by controlling the transmission mechanism 7. The control unit 35 controls opening and closing of the water supply valve 21 and the drain valve 23. The control unit 35 controls the operations of the blower unit 10 and the heating unit 11. When the user operates the operation unit 17 to select an operation condition or the like, the control unit 35 receives the selection.

  The control unit 35 executes the washing operation by controlling the operations of the motor 6, the transmission mechanism 7, the water supply valve 21, the drain valve 23, the blower unit 10, and the heating unit 11. When the user accommodates the pillow Q in the washing tub 4 and operates the operation unit 17 to select the pillow-only course, the control unit 35 executes the washing operation for the pillow. In the washing operation in that case, referring to the flowchart of FIG. 3, a tick extinguishing process for killing ticks hidden in the pillow Q (step S1), a washing process for washing the pillow Q after the tick extinguishing process (step S2), And an intermediate dehydration step (step S3) for dehydrating the pillow Q after the washing step. The washing operation includes a first rinsing process (step S4) for rinsing the pillow Q after the intermediate dehydration process, an intermediate dehydration process (step S5) after the first rinsing process, and a second rinsing process for rinsing the pillow Q after the intermediate dehydration process ( Step S6) and a final dehydration step (step S7) for finally dehydrating the pillow Q after the second rinsing step.

  In the tick extinguishing step of Step S1, the control unit 35 turns on the heating unit 11 and rotates the rotary blade 29 of the blower unit 10 for a predetermined time (for example, 90 minutes). As a result, hot air is generated in the duct 9, and this hot air is supplied from the duct 9 to the pillow Q in the washing tub 4 (see the thick dashed arrow in FIG. 1). Since hot air is supplied to the three-dimensional pillow Q that has been dried in the stage prior to the washing process, ticks lurking in the pillow Q can be killed by the hot air.

  The washing process (step S2) after the mite extermination process includes a surface washing process as a first washing process and a batting washing process as a second washing process. Prior to the start of the surface washing process or the start of the entire washing operation, the detergent is put into the washing tub 4 by the user or the like. With reference to the flowchart of FIG. 4, in the surface washing step, the control unit 35 first opens the water supply valve 21 and starts water supply to the outer tub 3 and the washing tub 4 (step S <b> 11). Thereby, in the washing tub 4, a water level rises and the wash water with which tap water and the detergent were mixed is stored. When the water level in the washing tub 4 rises to the surface washing water level as the first water level (YES in step S12), the control unit 35 stops the water supply by closing the water supply valve 21, and has a high rotational speed of, for example, 850 rpm. The rotating blade 5 is rotated by (Step S13). The surface wash water level is a relatively low water level when the pillow Q in the washing tub 4 slightly floats to the extent that it is separated from the raised portion 5A of the rotary blade 5. In this case, it is possible to prevent the lower end of the pillow Q from touching the rotating rotor blade 5 and being damaged.

  The pillow Q in the washing tub 4 is in a sleeping position like the pillow Q1 (see FIG. 1), and is agitated by the water flow generated in the washing tub 4 by the raised portion 5A of the rotating rotor blade 5. Thereby, the stain | pollution | contamination which exists in the part immersed in water in the surface of the pillow Q is removed mechanically, or it decomposes | disassembles chemically with the detergent component in wash water.

  In addition, the wash water in the space S on the bottom wall 4B side in the washing tub 4 is pushed out to the radially outer side R2 by the back blade 5B of the rotating rotary blade 5 and sent to the inlet 28A of the pumping channel 28. It is pumped up in the inside and is poured from the outlet 28B onto the pillow Q in the washing tub 4 from above (refer to the thick dashed-dotted arrow in FIG. 1). Thereby, the dirt which exists in the part which protruded from the water on the surface of the pillow Q is removed or decomposed | disassembled. The washing water bathed in the pillow Q flows down into the space S and circulates so as to be bathed in the pillow Q through the pumping path 28 again.

  When a predetermined stirring time (for example, 5 minutes) has elapsed since the stirring of the pillow Q accompanying the rotation of the rotary blade 5 and the circulation of the washing water have started (YES in step S14), the control unit 35 stops the rotary blade 5 By doing so, the stirring of the pillow Q and the circulation of the washing water are stopped (step S15). Thereby, a surface washing process is complete | finished. In the surface washing step, the surface of the portion below the water surface in the pillow Q is washed by being stirred by the rotating rotor blade 5. The surface of the portion of the pillow Q that protrudes above the water surface is washed with washing water that is pumped up by the pumping passage 28 and bathed from above according to the rotation of the rotary blade 5. Therefore, in the surface washing step, the entire surface of the three-dimensional pillow Q can be washed.

  In the batting washing process after the surface washing process, referring to the flowchart of FIG. 5, the control unit 35 first starts additional water supply to the washing tub 4 (step S21). When the water level in the washing tub 4 rises to the reserved water level as the second water level (YES in step S22), the control unit 35 stops water supply (step S23) and starts rotating the rotary blade 5 ( Step S24). The soaking water level is higher than the surface washing water level described above. When the water level in the washing tub 4 reaches the water level, the pillow Q is in a vertically long posture like the pillow Q2 (see FIG. 1), and the whole pillow Q is arranged below the water surface. The entire pillow Q can be soaked in plenty of water. As the rotation of the rotary blade 5 starts, the stirring of the pillow Q in the washing tub 4 is started. During the rotation of the rotary blade 5, the washing water may be circulated and put on the pillow Q in the washing tub 4 from the pumping path 28, as in the surface washing step.

  When a predetermined stirring time (for example, 40 seconds) has elapsed since the stirring of the pillow Q has started (YES in step S25), the control unit 35 stops the rotation of the rotary blade 5, that is, the stirring of the pillow Q (step S26). . The pillow Q in the washing tub 4 is put on the washing water accumulated in the washing tub 4 in accordance with the stop of the rotary blade 5. When a predetermined putting time (for example, 2 minutes) elapses from the stop of the rotor 5, that is, the starting of putting (for example, YES in step S27), the control unit 35 increments the number of putting recorded in the memory 37 ( +1) (step S28). The number of application at the start of the batting process is zero. When the number of application does not reach a predetermined number N (for example, 7 times) (NO in step S29), the control unit 35 rotates and stops the rotating blade 5 by executing the processing of steps S24 to S28 again. That is, the stirring and setting of the pillow Q are repeated alternately. When the application number reaches the predetermined number N (YES in step S29), the control unit 35 ends the batting process.

  In the batting washing process, the rotation and stop of the rotary blade 5 are alternately repeated in a state where the entire pillow Q is immersed in the washing water. As a result, when the rotary blade 5 is stopped, the washing water is permeated into every corner of the inside of the pillow Q to decompose the dirt, and when the rotary blade 5 is rotated, the pillow Q with the wash water permeating inside is removed. By swimming, dirt inside the pillow Q can be removed by putting it on the water stream.

  When trying to wash the pillow Q with a general vertical washing machine, compared to a drum-type washing machine that performs tapping washing, the pillow Q floats up and easily protrudes from the water surface. Improvement is difficult. However, in the vertical washing machine 1 of the present embodiment, the surface and the inside of the pillow Q are cleaned evenly without using special equipment by the washing process constituted by the surface washing process and the batting washing process. The tick carcasses that were killed in the mite extermination process can be washed away and removed from the pillow Q. That is, it is possible to improve the cleaning power while reducing labor and cost for a three-dimensional laundry such as the pillow Q.

  In the intermediate dehydration process (step S3) after the batting process, referring to the flowchart of FIG. 6, the control unit 35 first opens the drain valve 23 and starts draining the outer tub 3 and the washing tub 4 (step). S31). When the water level in the washing tub 4 drops to the laying water level (YES in step S32), the control unit 35 closes the drain valve 23 to stop draining (step S33) and starts the rotation of the rotary blade 5 (step S33). S34). The sleeping water level is a relatively low water level such that the lower end of the pillow Q in the washing tub 4 slightly touches the raised portion 5 </ b> A of the rotary blade 5. In step S34, in a state where the pillow Q in the washing tub 4 is in contact with the rotary blade 5, the rotary blade 5 rotates in small increments, for example, so as to repeat rotation and stop at short intervals. Thereby, since it stirs in the state where the pillow Q was laid down, it becomes difficult to bias in the washing tub 4, and the pillow Q becomes difficult to lose its shape by being loosened. During the rotation of the rotary blade 5, the washing water may be circulated and put on the pillow Q in the washing tub 4 from the pumping path 28, as in the surface washing step.

  When a predetermined loosening time (for example, 1 minute) has elapsed since the stirring of the pillow Q has started (YES in step S35), the control unit 35 stops the rotation of the rotating blade 5, that is, the stirring of the pillow Q, and discharges the drainage. Start (step S36). When the control unit 35 confirms the completion of drainage by the water level sensor 40 (YES in step S37), the controller 35 starts dewatering rotation of the washing tub 4 with the drain valve 23 opened (step S38). The rotation speed of the washing tub 4 during the spin-drying rotation increases stepwise, and finally reaches the maximum rotation speed of, for example, 800 rpm, and then the application of voltage to the motor 6 is stopped, whereby the washing tub 4 Rotating inertia. The pillow Q in the washing tub 4 is dehydrated by the centrifugal force generated by the dehydration rotation of the washing tub 4. The water that exudes from the pillow Q due to dehydration is discharged from the drainage channel 22 to the outside of the machine. The pillow Q is placed in the center of the bottom wall 4 </ b> B of the washing tub 4 by stirring from step S <b> 34, so that the pillow Q is not easily biased in the washing tub 4. When the washing tub 4 is dehydrated and rotated in this state, even one pillow Q accommodated in the washing tub 4 can be effectively dehydrated.

  If the pillow Q is in a vertically long posture and is disposed in the circumferential direction P in the washing tub 4 during spin-drying rotation, the duty ratio of the voltage applied to the motor 6 is difficult to decrease, or the motor 6 The phenomenon that the number of rotations becomes difficult to increase occurs. When these phenomena occur during the spin-drying rotation, the control unit 35 determines that the pillow Q is in a state of being biased in the circumferential direction P without taking a horizontally long posture, that is, there is an imbalance (Step S35). In S39, the dehydration rotation is interrupted, and water is supplied until water at the laying water level accumulates in the washing tub 4 (step S40). Thereafter, by repeating the processing after step S34, the pillow Q is corrected so as to be in a horizontally long posture.

  If there is no imbalance during dehydration rotation (NO in step S39), the control unit 35 continues the dehydration rotation to the end, and ends the intermediate dehydration step. In the first rinsing step (step S4) after the intermediate dehydration step, the control unit 35 rotates the rotary blade 5 for a predetermined time after supplying water into the washing tub 4 to a predetermined water level, so that the pillow Q It is rinsed by the stream of tap water collected in the water. In the first rinsing step, the same processing as the above-described surface washing step and batting washing step may be performed. In this case, the surface and the inside of the pillow Q can be rinsed with washing water using tap water. However, the stirring time and the soaking time in the first rinsing step may be different from these times in the washing step.

  In the intermediate dehydration process (step S5) after the first rinsing process, the control unit 35 performs the same process as the intermediate dehydration process (step S3) after the washing process. In the subsequent second rinsing step (step S6), the control unit 35 performs the same process as the first rinsing step (step S4). In the final dehydration process (step S7) after the second rinsing process, the control unit 35 performs the same process as the intermediate dehydration process (steps S3 and S5). However, the rotation speed and rotation time of the washing tub 4 in the final dehydration process may be different from the rotation speed and rotation time of the washing tub 4 in the intermediate dehydration process. As an example, the maximum rotation speed of the washing tub 4 in the final dehydration process may be set higher than the maximum rotation speed of the washing tub 4 in the intermediate dehydration process. In addition, the washing operation may be ended according to the end of the final dehydration step, but the drying step may be performed after the final dehydration step. In the drying process, the control unit 35 generates hot air by the blower unit 10 and the heating unit 11 and supplies the hot air from the duct 9 to the pillow Q in the washing tub 4. Thereby, the pillow Q dries.

  The present invention is not limited to the embodiments described above, and various modifications can be made within the scope of the claims.

  For example, in the vertical washing machine 1, the axis J of the washing tub 4 is arranged so as to extend vertically along the vertical direction Z (see FIG. 1), but the axis J is slightly inclined with respect to the vertical direction Z. Arranged configurations are also included. Moreover, when omitting the mite extermination process and drying process mentioned above, the vertical washing machine 1 may not be a washing-drying machine which has a drying function.

DESCRIPTION OF SYMBOLS 1 Vertical washing machine 4 Washing tub 4B Bottom wall 5 Rotor blade 6 Motor 10 Blower part 11 Heating part 21 Water supply valve 24 Entrance / exit 28 Pumping path 35 Control part Q Pillow

Claims (3)

In addition to ordinary laundry such as clothes, three-dimensional laundry such as pillows and cushions can be accommodated, a laundry tub in which a laundry entrance is formed at the upper end and a bottom wall is provided at the lower end to store washing water;
A pumping path provided in the washing tub, for pumping up washing water on the bottom wall side in the washing tub and bathing the laundry in the washing tub from above;
Driving means for generating a driving force;
The laundry disposed on the bottom wall is rotated by receiving the driving force of the driving means to agitate the laundry in the washing tub and feed the washing water on the bottom wall side in the washing tub into the pumping path. Rotor blades,
Water supply means for supplying water into the washing tub;
A first washing step in which the laundry in the washing tub supplies water to the first water level away from the rotor blades by the water supply means and then rotates the rotor blades by the driving means; and the first washing step after the first washing step. A vertical washing machine comprising: a control unit that performs a second washing step of alternately rotating and stopping the rotating blades after water is supplied by the water supply unit to a second water level higher than the water level. The washing tub is rotated by the driving force of the driving means,
2. The longitudinal direction according to claim 1, wherein the control unit rotates the rotary wing in small increments while the laundry in the laundry tub touches the rotary wing, and then spins the laundry tub with the driving unit. Mold washing machine. Further comprising hot air supply means for supplying hot air into the washing tub,
The vertical washing machine according to claim 1 or 2, wherein the control means supplies hot air to the laundry in the washing tub by the hot air supply means before the first washing step.

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