JP2016120014A - Washing machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a washing machine capable of performing a reserved operation seriously considering finish and detergency of an object to be washed such as clothes while completing washing before a completing scheduled time.SOLUTION: A washing machine includes: a washing machine body; a washing tub; and a motor, and is capable of performing a reserved operation for completing a plurality of processes for washing clothes before a completing scheduled time. The washing machine includes: a time acquisition section for acquiring residual time up to a completing target time set on the basis of the completing scheduled time before starting a washing process; and a control section for determining whether each process is performed either in a normal reserved mode for performing each process for a prescribed execution time while setting an average number of revolution of the motor to a prescribed value or in a special reserved mode in which an average number of revolution of the motor is smaller than that in the normal reserved mode and the execution time is set to be longer on the basis of the residual time acquired by the time acquisition section.SELECTED DRAWING: Figure 5

Description

  The present invention relates to a washing machine capable of performing a reserved operation that emphasizes the finish and washing power of laundry such as clothes while ending washing by the scheduled end time.

  Conventionally, a washing machine main body, a washing tub disposed inside the washing machine main body, and a motor for applying a driving force for rotating laundry to be washed such as clothes put in the washing tub, 2. Description of the Related Art A washing machine capable of a reserved operation for automatically completing a plurality of processes for washing laundry (for example, a washing process, a rinsing process, and a dehydrating process) by a scheduled end time input by a user is known. Patent Document 1 discloses a washing machine capable of such a reserved operation. Even if the reservation operation start key is operated, the washing machine disclosed in Patent Document 1 does not start the washing operation immediately, and after the reservation standby time has elapsed after the reservation operation start key is operated, The washing operation is started.

JP 2004-65408 A

  By the way, in a general washing machine, in normal washing operation that is not reserved operation, there is a tendency that reduction in operation time is important. For example, the rotation speed of a laundry in a washing tub is increased by increasing the number of rotations of a motor. The speed is increased and the cleaning power per unit time is increased. However, when the rotational speed is increased in this manner, the laundry is easily damaged and wrinkled, and the finished laundry is somewhat sacrificed in order to shorten the operation time and ensure the cleaning power.

  On the other hand, a washing machine having a reservation operation function as described above usually performs a normal washing operation and a reservation operation under substantially the same conditions except that the washing operation is started after the reservation standby time has elapsed. is there. Therefore, the washing machine disclosed in Patent Document 1 is considered to have substantially the same operation time (execution time) of each process and the number of rotations of the motor in each process in the normal washing operation and the reserved operation. Even in the case of reserved driving where it is not necessary to consider shortening of driving time, it is considered that the finish of the laundry is sacrificed, so there is room for improvement.

  SUMMARY OF THE INVENTION An object of the present invention is to provide a washing machine capable of performing a reserved operation with an emphasis on the finish of clothes to be washed and washing power while completing washing by the scheduled end time.

  In order to achieve this object, the present invention takes the following measures.

  That is, the washing machine of the present invention is accommodated in a washing machine body having an input unit capable of arbitrarily inputting a scheduled end time of washing, a washing tub disposed inside the washing machine body, and the washing tub. A motor for applying a driving force for rotating the laundry, and a reserved operation for ending a plurality of steps of washing the laundry by the scheduled end time is possible, and among the plurality of steps Before the start of the first step, a time acquisition unit that acquires a remaining time until an end target time set based on the scheduled end time, and a plurality of the plurality of times based on the remaining time acquired by the time acquisition unit A normal reservation mode in which each process is performed at a predetermined execution time while setting the average rotation speed of the motor to a predetermined value, or the average rotation speed of the motor is set to be smaller and longer than the normal reservation mode. Characterized in that it comprises a mode determination unit for determining whether to perform either a special reservation mode.

  Specifically, in the present invention, the plurality of steps are a washing step, a rinsing step, and a dehydrating step, and the mode determining means determines that the remaining time acquired by the time acquiring means is a washing step, a rinsing step, and a dehydrating step. If it is determined that the time required for executing all of the processes in the special reservation mode is longer than the time required, it is determined that all the processes are executed in the special reservation mode, and the remaining time acquired by the time acquisition unit is the washing process and the rinsing. If it is determined that it is not longer than the time required to execute all the processes and the dehydration process in the special reservation mode, it is preferable to determine that all the processes are performed in the normal reservation mode.

  Alternatively, according to the present invention, the plurality of steps are a washing step, a rinsing step, and a dehydrating step, and the mode determining unit determines whether the remaining time acquired by the time acquiring unit is a washing step, a rinsing step, and a dehydrating step. When it is determined that the time required for executing all in the special reservation mode exceeds the time required to execute all the processes in the special reservation mode, and the remaining time is executed in the special reservation mode. When it is determined that the required time is not more than the required time, the remaining time is determined to be more than the time required when some of the plurality of processes are executed in the special reservation mode and the other processes are executed in the normal reservation mode. Then, it is also preferable to adopt a configuration in which only a part of the process is determined to be executed in the special reservation mode.

  Alternatively, in the present invention, the plurality of steps are a washing step, a rinsing step, and a dehydration step, and the time acquisition means is configured to perform the rinsing step before the start and the dehydration in addition to the start of the first washing step. Before the start of the process, each of the remaining time until the end target time is acquired, the mode determination means, the time acquisition means each time the remaining time is acquired, the normal time based on the remaining time A process for determining whether to execute the next process in the reservation mode or the special reservation mode is also a process.

  In the present invention, it is preferable that a time that is a predetermined time before the scheduled end time input to the input unit is set as the target end time.

  According to the present invention described above, when the scheduled end time is input through the input unit of the washing machine main body and the reserved operation is performed, the time acquisition unit calculates the remaining time until the end target time before the start of the first process. The mode determining means can determine whether to perform the normal reservation mode or the special reservation mode for each process based on the remaining time. In the special reservation mode, since the average rotation speed of the motor is smaller than that in the normal reservation mode, the rotation speed of the laundry is reduced in the washing tub, and the pain and wrinkles of the laundry can be reduced. Since the execution time is longer than that in the normal reservation mode, it is possible to compensate for the cleaning power, rinsing power, and dewatering power per unit time, which have been reduced by decreasing the rotational speed of the laundry in the washing tub. For this reason, the present invention can execute the special reservation mode when there is a time allowance until the end target time set based on the scheduled end time, and the laundry is completed by the scheduled end time. In addition, it is possible to perform a reserved driving that emphasizes the finish of the laundry such as clothes and the cleaning power.

  Specifically, if it is determined that the remaining time is more than the time required for executing all processes in the special reservation mode, execute all processes in the special reservation mode, otherwise execute in the normal reservation mode. According to the present invention to be determined, it is possible to realize a reservation operation capable of reducing pain and wrinkles of the laundry while completing washing by the end target time with simple control.

  Alternatively, if it is determined that the remaining time is equal to or more than the time required for executing only a part of the processes in the special reservation mode, according to the present invention, it is determined that only a part of the processes are executed in the special reservation mode. When there is not enough time to execute the process in the special reservation mode, by performing only a part of the process in the special reservation mode, the opportunity to perform reservation operation that can reduce the damage and wrinkles of the laundry Can be increased.

  Alternatively, according to the present invention, which determines whether to execute the normal reservation mode or the special reservation mode every time the remaining time is acquired, it is reviewed whether to execute the normal reservation mode or the special reservation mode before the start of each process. Even if a time loss occurs due to the necessity of performing an irregular operation or the like, washing can be completed by the scheduled end time.

  In addition, according to the present invention in which a time that is a predetermined time before the scheduled end time input to the input unit is set as the target end time, it is necessary to perform an irregular operation or the like, resulting in time loss. Even in this case, the loss can be covered by the predetermined time, and the washing can be finished by the scheduled end time. In addition, by setting the predetermined time to, for example, about 15 minutes, it is possible to prevent the generation of odor due to the laundry after being washed being left in the washing tub while covering the time loss. it can.

The perspective view which shows the external appearance of the washing machine which concerns on 1st Embodiment of this invention. The longitudinal cross-sectional view which shows schematic structure of the washing machine. The block diagram which shows the electric constitution of the washing machine. The flowchart which shows the procedure of the reservation driving course of the washing machine. The flowchart which shows the procedure of determination of the reservation mode among reservation driving courses. The flowchart which shows the procedure of the washing process of a reservation driving course. The flowchart which shows the procedure of the intermediate | middle dehydration process in a reservation driving | running course. The flowchart which shows the procedure of the rinse process of a reservation driving course. The flowchart which shows the procedure of the last spin-drying | dehydration process in a reservation driving | running course. The flowchart which shows the procedure of determination of the reservation mode by the washing machine which concerns on 2nd Embodiment of this invention. The flowchart which shows the procedure of the reservation driving course by the washing machine which concerns on 3rd Embodiment of this invention. The flowchart which shows the procedure of the washing process of a reservation driving course. The flowchart which shows the procedure of the intermediate | middle dehydration process in a reservation driving | running course. The flowchart which shows the procedure of the rinse process of a reservation driving course. The flowchart which shows the procedure of the last spin-drying | dehydration process in a reservation driving | running course.

  Embodiments of the present invention will be described below with reference to the drawings.

<First Embodiment>
FIG. 1 is a perspective view showing an external appearance of a vertical washing machine (hereinafter referred to as “washing machine”) 1 according to a first embodiment of the present invention. FIG. 2 is a longitudinal sectional view showing a schematic configuration of the washing machine 1 of the first embodiment.

  The washing machine 1 of the present embodiment includes a washing machine body 2, an outer tub 3, a washing tub 4, a pulsator 5, a driving unit 6, and a control unit 7 (see FIG. 3). Such a washing machine 1 performs a reserved operation (reservation) that finishes a washing process, an intermediate dehydration process, a rinse process, and a final dehydration process, which are a plurality of processes for washing clothes, by the scheduled end time input to the input unit 23. Laundry) is possible.

  The washing machine main body 2 has a substantially rectangular parallelepiped shape, and has an opening 21 for putting clothes into and out of the washing tub 4 in and out of the washing tub 4 and an opening / closing lid 22 that can open and close the opening 21. The clothes can be taken in and out of the washing tub 4 through the opening 21 by opening the opening / closing lid 22. Further, the upper surface 20 of the washing machine main body 2 has a reservation operation course button, a time setting button, an operation start button, and the like, and an input unit 23 (FIG. 1) that can arbitrarily input a washing course, a scheduled end time of washing, and the like. See).

  The outer tub 3 shown in FIG. 2 is a bottomed cylindrical member that is disposed inside the washing machine body 2 and can store water.

  The washing tub 4 is a bottomed cylindrical member that is disposed coaxially with the outer tub 3 inside the outer tub 3 and is rotatably supported by the outer tub 3. The washing tub 4 has a smaller diameter than the outer tub 3, has a large number of water passage holes (not shown) on its wall surface, and functions as a dehydration tub. In the washing process and the rinsing process, a water flow is generated through this water passage hole (not shown), and in the intermediate dehydration process and the final dewatering process, water is discharged from a drain port (not shown) provided in the outer tub 3 through the water passage hole. Spill.

  The pulsator (stirring blade) 5 is rotatably disposed at the center of the bottom 41 of the washing tub 4 and agitates the water stored in the outer tub 3 to generate a water flow. The water flow value increases as the rotational speed of the pulsator 5 increases. Further, the water flow value increases as the ratio of the time for which the pulsator 5 rotates with respect to the execution time of each process described later increases.

  The driving means 6 includes a motor 61 and a clutch 62, and the motor 61 rotates the washing tub 4 and the pulsator 5 to apply a driving force for rotating the clothes accommodated in the washing tub 4.

  Specifically, the washing tub 4 rotates when the motor 61 rotates the drive shaft 63 that extends toward the bottom 41 of the washing tub 4. Further, the rotational force by the motor 61 gives a driving force to the pulsator 5 by switching the clutch 62 to rotate the pulsator 5. Therefore, the washing machine 1 mainly rotates only the pulsator 5 in the washing process and the rinsing process among the plurality of processes for washing the clothes, and integrally sets the washing tub 4 and the pulsator 5 in the intermediate dehydration process and the final dehydration process. It can be rotated at high speed.

  FIG. 3 is a block diagram showing an electrical configuration of the washing machine 1 of the present embodiment. The operation of the washing machine 1 is controlled by a control unit 7 including a microcomputer. The control unit 7 includes a ROM 71 and a RAM 72, and a predetermined operation is performed when the microcomputer executes a program stored in the ROM 71. The RAM 72 temporarily stores data used when the program is executed (for example, the scheduled end time input via the input unit 23) and the like.

  In addition to the motor 61 and clutch 62 described above, a water supply valve 24 for supplying water to the outer tub 3 and a drain valve 25 for discharging water in the outer tub 3 are connected to the control unit 7 as control targets. Is done. In addition, illustration of the water supply valve 24 and the drain valve 25 is abbreviate | omitted in FIG. 2 mentioned above.

  In addition to the input unit 23 described above, the control unit 7 receives signals from a load sensor 26, a time acquisition unit 27 as a time acquisition unit, a timer 28, a water level sensor 29, and the like.

  The load sensor 26 detects the weight of clothing stored in the washing tub 4, and the control unit 7 determines the load according to the amount of clothing based on the detection result of the load sensor 26. You can (request). The control unit 7 uses the load amount to adjust data such as the rotation speed and execution time of a motor 61, which will be described later, extracted from the ROM 71, or sets a value corresponding to the load amount from a table stored in advance in the ROM 71. In the same mode, the washing time is set longer as the amount of clothing is larger and the amount of water supplied to the outer tub 3 is larger. Note that the load amount may be determined based on the amount of water input from the input unit 23. Further, the load amount is, for example, a load coefficient, and it is conceivable to adjust the data extracted from the ROM 71 by multiplying the load coefficient.

  The time acquisition unit 27 acquires the remaining time until the end target time set by the control unit 7 based on the scheduled end time input to the input unit 23 when the reserved driving course is washed. The target end time is set to a predetermined time before the scheduled end time. The predetermined time is preferably 30 minutes, more preferably about 15 minutes. By setting such a target end time, a loss of time occurs due to an irregular operation, for example, a water injection operation for loosening clothes that are biased in the washing tub 4 during the dehydration process. Even if it does, the loss can be covered and washing can be completed by the scheduled end time. In addition, by setting the predetermined time to, for example, 30 minutes or less, it is possible to prevent generation of odor due to leaving the clothes after the reserved operation in the washing tub 4 while covering a time loss. . In the present embodiment, the time acquisition unit 27 acquires the remaining time before the start of the washing process, which is the first process among the plurality of processes for washing clothes.

  The timer 28 acquires the elapsed time from the start time in each step. The water level sensor 29 detects the amount of water in the outer tub 3.

  In the washing machine 1 of this embodiment, when the reservation operation course is selected, the normal rotation mode in which the average rotation speed of the motor 61 is set to a predetermined value and the execution time is predetermined, or the average of the motor 61 is higher than that in the normal reservation mode. The special reservation mode in which the number of rotations is small and the execution time is set to be long can be executed, and the control unit 7 sets each process in the normal reservation mode or based on the remaining time acquired by the time acquisition unit 27. Decide which mode to run in special reservation mode. That is, the control unit 7 also functions as a mode determination unit.

  Here, the average rotational speed of the motor 61 refers to the average rotational speed of the motor 61 when each process is executed, and is defined for each process. In the present embodiment, the average rotational speed of the motor 61 is adjusted by changing the rotational speed of the motor 61 based on the rotational speed of the motor 61 taken out from the ROM 71 by, for example, inverter control.

  In normal washing courses that are not reserved driving courses, there is a tendency to emphasize driving time reduction. However, in reserved driving courses, even if the driving time becomes longer, washing may be completed by the scheduled end time. In the special reservation mode, since the average rotation speed of the motor 61 is smaller than that in the normal reservation mode, the rotation speed of the laundry is reduced in the washing tub 4, and the pain and wrinkle of the clothes can be reduced. Since the execution time is longer than that in the normal reservation mode, it is possible to compensate for the cleaning power, rinsing power and dewatering power per unit time which are reduced by the decrease in the rotation speed of the clothes in the washing tub 4. Therefore, the washing machine 1 of the present embodiment can execute the special reservation mode when there is a time allowance until the end target time set based on the scheduled end time, and until the scheduled end time. In addition, it is possible to perform a reserved driving that emphasizes the finish of clothes and the cleaning power while washing is completed.

  The ROM 71 stores the rotation speed and execution time of the motor 61 in the normal reservation mode (washing time, intermediate dewatering time, rinsing time, and final dewatering time), and the rotation speed and execution time of the motor 61 in the special reservation mode (washing time). Intermediate dehydration time, rinsing time, final dehydration time) and the like.

  Specifically, the ROM 71 stores, as washing times, a normal washing time applied in the normal reservation mode and a special reservation washing time applied in the special reservation mode. In addition, a normal water flow value applied in the normal reservation mode and a special reservation mode water flow value applied in the special reservation mode are stored as the water flow values. The water flow value is adjusted by the motor speed, and the special reservation mode water flow value is set smaller than the normal water flow value. Moreover, you may make it adjust a water flow value with the ratio of the rotation time of the pulsator 5 with respect to the execution time of each process.

  The ROM 71 stores a normal intermediate dehydration time applied in the normal reservation mode and a special reservation intermediate dehydration time applied in the special reservation mode, respectively, as the intermediate dehydration time. Further, as the motor rotation speed, the normal rotation speed applied in the normal reservation mode and the special reservation mode rotation speed applied in the special reservation mode are stored. The special reservation mode rotational speed is set to a value smaller than the normal rotational speed.

  Further, the ROM 71 stores a normal rinse time applied in the normal reservation mode and a special reservation rinse time applied in the special reservation mode, respectively, as the rinse time. In the case where the water flow value is different between the washing process and the rinsing process in the same mode, the water flow value for the rinsing process is further applied as a normal water flow value applied in the normal reservation mode and a special flow applied in the special reservation mode. Each reservation mode water flow value is stored.

  Furthermore, the ROM 71 stores, as the final dehydration time, a normal final dehydration time applied in the normal reservation mode and a special reservation final dehydration time applied in the special reservation mode. In the case where the motor speed is different between the intermediate dewatering process and the final dewatering process in the same mode, the motor speed for the final dewatering process is further set as the normal speed and the special speed applied in the normal reservation mode. Each special reservation mode rotation speed applied in the reservation mode is stored.

  Here, based on FIGS. 4-9, the procedure in the case of performing a reservation driving | operation is demonstrated. FIG. 4 is a flowchart showing a procedure when washing is performed in a reserved driving course. FIG. 5 is a flowchart showing the procedure of the reservation mode determination SP1 in the reserved driving course. FIG. 6 is a flowchart showing the procedure of the washing step SP2 in the reserved driving course. FIG. 7 is a flowchart showing the procedure of the intermediate dehydration step SP3 in the reserved operation course. FIG. 8 is a flowchart showing the procedure of the rinsing step SP4 in the reserved operation course. FIG. 9 is a flowchart showing the procedure of the final dehydration step SP5 in the reserved operation course.

  First, based on FIG. 4, the outline of the procedure in the case of washing in a reserved driving course will be described.

<Step SP1>
In step SP1, the control unit 7 determines (determines) whether each process is executed in the normal reservation mode or the special reservation mode.

<Step SP2>
In step SP2, the control part 7 performs a washing process.

<Step SP3>
In step SP3, the control unit 7 performs an intermediate dehydration process.

<Step SP4>
In step SP4, the control unit 7 performs a rinsing process.

<Step SP5>
In step SP5, the control unit 7 performs a final dehydration process.

  Next, the determination procedure in the reservation mode at step SP1 shown in FIG. 4 will be described in detail based on FIG.

<Step SP11>
In step SP11, the control unit 7 determines whether or not a reserved driving course is set by pressing a reserved driving course button included in the input unit 23.

<Step SP12>
In step SP12, it is determined that a reserved driving course has been set (step SP11: YES), and the control unit 7 determines whether or not the scheduled end time has been input to the input unit 23. When the scheduled end time is input, the control unit 7 obtains the target end time based on the scheduled end time.

<Step SP13>
In step SP13, after it is determined that the scheduled end time has been input (step SP12: YES), the control unit 7 determines whether the operation start button of the input unit 23 has been pressed.

<Step SP14>
In step SP14, it is determined that the operation start button has been pressed (step SP13: YES), and the control unit 7 determines the load amount based on the detection value of the load amount sensor 26 and the like, and also makes a special reservation. Get mode duration. The time required for the special reservation mode is a time required when all of the washing process SP2, the intermediate dehydration process SP3, the rinsing process SP4, and the final dehydration process SP5 are executed in the special reservation mode, and the load is calculated based on the data stored in the ROM 71 in advance. It is obtained according to the amount. For example, the time required for the special reservation mode is adjusted by a load amount as a reference time stored in advance in the ROM 71 (e.g., the execution time of each process or a sum of these execution times) or stored in the ROM 71 in advance. It is obtained by reading a value corresponding to the load amount from the table. This also applies to other required times described later.

<Step SP15>
In step SP15, the control unit 7 determines whether the remaining time until the end target time acquired by the time acquisition unit 27 is equal to or longer than the time required for the special reservation mode. If it is determined that the remaining time is equal to or longer than the special reservation mode required time, the process proceeds to step SP16 (step SP15: YES), and if it is determined that the remaining time is not equal to or longer than the special reservation mode required time, the process proceeds to step SP17 (step SP15: NO).

<Step SP16>
In step SP16, the control unit 7 determines that all processes are executed in the special reservation mode.

<Step SP17>
In step SP17, the control unit 7 determines that all processes are executed in the normal reservation mode.

  Next, based on FIG. 6, the procedure of the washing process of step SP2 shown in FIG. 4 will be described in detail.

<Step SP21>
In step SP21, the control unit 7 determines whether or not it is determined in step SP16 shown in FIG. 5 that all processes are executed in the special reservation mode. That is, it is determined whether or not the special reservation mode is set. If it is determined that it is the special reservation mode, the process proceeds to step SP22 (step SP21: YES), and if it is determined that it is not the special reservation mode, the process proceeds to step SP24 (step SP21: NO).

<Step SP22>
In step SP22, the control unit 7 obtains the special washing time from the ROM 71, and sets the washing time based on the special washing time. Specifically, the special washing time taken out from the ROM 71 is adjusted by the load amount and set as the washing time, or the special washing time corresponding to the load amount is taken out from a table stored in the ROM 71 in advance. Set as washing time. Even in the later-described steps for setting the execution time, water flow value, and motor rotation speed of each process, values corresponding to the load amount are set in this way.

<Step SP23>
In step SP23, the control unit 7 obtains the special reservation mode water flow value from the ROM 71, and sets the water flow value based on the special reservation mode water flow value.

<Step SP24>
In step SP24, the control unit 7 obtains the normal washing time from the ROM 71, and sets the washing time based thereon.

<Step SP25>
In step SP25, the control unit 7 obtains the normal water flow value from the ROM 71, and sets the water flow value based on the normal water flow value.

<Step SP26>
In step SP26, the control unit 7 sends a signal to the driving means 6, the water supply valve 24, and the like to start the washing operation, and causes the timer 28 to start counting elapsed time. The water flow value in the washing operation is set to the water flow value set in step SP23 or step SP25, and the water flow value is adjusted by the rotation speed of the motor 61. Therefore, when the special reservation mode is set, the average rotational speed of the motor 61 is smaller than when the normal reservation mode is set.

<Step SP27>
In step SP27, the control unit 7 determines whether or not the washing time set in step SP22 or step SP24 has been reached based on the elapsed time acquired from the timer 28.

<Step SP28>
In step SP28, waiting for the washing time to be reached, the control unit 7 ends the washing operation.

  Next, based on FIG. 7, the procedure of the intermediate dehydration process of step SP3 shown in FIG. 4 will be described in detail.

<Step SP31>
In step SP31, the control unit 7 determines whether or not it is determined in step SP16 shown in FIG. 5 that all processes are executed in the special reservation mode. That is, it is determined whether or not the special reservation mode is set. If it is determined that it is the special reservation mode, the process proceeds to step SP32 (step SP31: YES), and if it is determined that it is not the special reservation mode, the process proceeds to step SP34 (step SP31: NO).

<Step SP32>
In step SP32, the control unit 7 obtains the special reserved intermediate dehydration time from the ROM 71, and sets the intermediate dehydration time based thereon.

<Step SP33>
In step SP33, the control unit 7 obtains the special reservation mode rotation speed from the ROM 71, and sets the motor rotation speed based on the special reservation mode rotation speed.

<Step SP34>
In step SP34, the control unit 7 obtains the normal intermediate dehydration time from the ROM 71, and sets the intermediate dehydration time based thereon.

<Step SP35>
In step SP35, the control unit 7 obtains the normal rotation speed from the ROM 71, and sets the motor rotation speed based on the normal rotation speed.

<Step SP36>
In step SP36, the control unit 7 sends a signal to the driving means 6, the drain valve 25, and the like to start the intermediate dehydration operation and cause the timer 28 to start counting elapsed time. The motor rotation speed in the intermediate dehydration operation is set to the motor rotation speed set in step SP33 or step SP35. Therefore, when the special reservation mode is set, the average rotational speed of the motor 61 is smaller than when the normal reservation mode is set.

<Step SP37>
In step SP37, the control unit 7 determines whether or not the intermediate dehydration time set in step SP32 or step SP34 has been reached based on the elapsed time acquired from the timer 28.

<Step SP38>
In step SP38, waiting for the intermediate dehydration time to be reached, the controller 7 ends the intermediate dehydration operation.

  Next, based on FIG. 8, the procedure of the rinse process of step SP4 shown in FIG. 4 will be described in detail.

<Step SP41>
In step SP41, the control unit 7 determines whether or not it is determined in step SP16 shown in FIG. 5 that all processes are executed in the special reservation mode. That is, it is determined whether or not the special reservation mode is set. If it is determined that it is the special reservation mode, the process proceeds to step SP42 (step SP41: YES), and if it is determined that it is not the special reservation mode, the process proceeds to step SP44 (step SP41: NO).

<Step SP42>
In step SP42, the control unit 7 obtains the special reservation rinsing time from the ROM 71, and sets the rinsing time based thereon.

<Step SP43>
In step SP43, the control unit 7 obtains the special reservation mode water flow value from the ROM 71, and sets the water flow value based thereon.

<Step SP44>
In step SP44, the control unit 7 obtains the normal rinsing time from the ROM 71, and sets the rinsing time based on the normal rinsing time.

<Step SP45>
In step SP45, the control unit 7 obtains the normal water flow value from the ROM 71, and sets the water flow value based on the normal water flow value.

<Step SP46>
In step SP46, the control unit 7 sends a signal to the driving means 6, the water supply valve 24, and the like to start the rinsing operation and cause the timer 28 to start counting elapsed time. The water flow value in the rinsing operation is set to the water flow value set in step SP43 or step SP45, and the water flow value is adjusted by the rotation speed of the motor 61. Therefore, when the special reservation mode is set, the average rotational speed of the motor 61 is smaller than when the normal reservation mode is set.

<Step SP47>
In step SP47, the control unit 7 determines whether or not the rinsing time set in step SP42 or step SP44 has been reached based on the elapsed time acquired from the timer 28.

<Step SP48>
In step SP48, waiting for the rinsing time to be reached, the control unit 7 ends the rinsing operation.

  Next, based on FIG. 9, the procedure of the final dehydration process of step SP5 shown in FIG. 4 will be described in detail.

<Step SP51>
In step SP51, the control unit 7 determines whether or not it is determined in step SP16 shown in FIG. 5 that all processes are executed in the special reservation mode. That is, it is determined whether or not the special reservation mode is set. If it is determined that it is the special reservation mode, the process proceeds to step SP52 (step SP51: YES), and if it is determined that it is not the special reservation mode, the process proceeds to step SP54 (step SP51: NO).

<Step SP52>
In step SP52, the control unit 7 obtains the special reserved final dehydration time from the ROM 71, and sets the final dehydration time based thereon.

<Step SP53>
In step SP53, the control unit 7 obtains the special reservation mode rotational speed from the ROM 71, and sets the motor rotational speed based thereon.

<Step SP54>
In step SP54, the control unit 7 obtains the normal final dehydration time from the ROM 71, and sets the final dehydration time based thereon.

<Step SP55>
In step SP55, the control unit 7 obtains the normal rotation speed from the ROM 71, and sets the motor rotation speed based on the normal rotation speed.

<Step SP56>
In step SP56, the control unit 7 sends a signal to the driving means 6, the drain valve 25, and the like to start the final dehydration operation and causes the timer 28 to start counting elapsed time. The motor rotation speed in the final dehydration operation is set to the motor rotation speed set in step SP53 or step SP55. Therefore, when the special reservation mode is set, the average rotational speed of the motor 61 is smaller than when the normal reservation mode is set.

<Step SP57>
In step SP57, the control unit 7 determines whether or not the final dehydration time set in step SP52 or step SP54 has been reached based on the elapsed time acquired from the timer 28.

<Step SP58>
In step SP58, waiting for the final dehydration time to be reached, the control unit 7 ends the final dehydration operation.

  As described above, when it is determined that the remaining time acquired by the time acquisition unit 27 is equal to or longer than the time required for the special reservation mode, all processes are executed in the special reservation mode, otherwise, the normal reservation mode is executed. Thus, it is possible to realize a reserved operation that can reduce the pain and wrinkles of clothing while completing washing by the target end time with simple control.

<Second Embodiment>
FIG. 10 is a flowchart showing the procedure for determining the reservation mode by the washing machine according to the second embodiment of the present invention. The washing machine 1 of the present embodiment is different from the first embodiment in part of the procedure for determining the reservation mode. Except for the configuration described below, this embodiment is the same as the first embodiment, and a description thereof will be omitted.

<Step SP15>
Among the determinations of the reservation mode in step SP1A, in step SP15, the control unit 7 determines whether the remaining time until the end target time acquired by the time acquisition unit 27 is equal to or longer than the special reservation mode required time, and the remaining time is special. If it is determined that the time required for the reservation mode is exceeded, the process proceeds to step SP16 (step SP15: YES), and if it is determined that the remaining time is not equal to or longer than the time required for the special reservation mode, the process proceeds to step SP18 (step SP15: NO).

<Step SP18>
In step SP18, the control unit 7 determines whether or not some processes can be executed in the special reservation mode. Specifically, the remaining time acquired by the time acquisition unit 27 is specially reserved for some of the washing process, intermediate dehydration process, rinsing process, and final dehydration process (for example, the intermediate dehydration process and the final dehydration process). It is executed in the mode, and it is determined whether or not the time required for executing other processes (for example, the washing process and the rinsing process) in the normal reservation mode is exceeded. The required time is obtained from data stored in advance in the ROM 71 according to the load amount. If it is determined that the remaining time is equal to or longer than the time required when some processes are executed in the special reservation mode and other processes are executed in the normal reservation mode, the process proceeds to step SP19 (step SP18: YES). If it is determined that it is not the time required for executing some processes in the special reservation mode and other processes in the normal reservation mode, the process proceeds to step SP20 (NO in step SP18).

<Step SP19>
In step SP19, the control unit 7 determines to execute some processes in the special reservation mode and execute other processes in the normal reservation mode.

<Step SP20>
In step SP20, the control unit 7 determines that all processes are executed in the normal reservation mode.

  After the reservation mode determination SP1A as described above, the control unit 7 performs the procedures of the washing process SP2, the intermediate dewatering process SP3, the rinsing process SP4, and the final dewatering process SP5 shown in FIGS. The operation according to is performed sequentially.

  In this way, when there is not enough time to execute all the processes in the special reservation mode, only a part of the processes are executed in the special reservation mode, thereby making it possible to reduce clothing damage and wrinkles. Opportunities for driving can be increased.

<Third Embodiment>
Based on FIGS. 11-15, the procedure in the case of performing a reservation driving | operation with the washing machine which concerns on 3rd Embodiment of this invention is demonstrated. FIG. 11 is a flowchart showing a procedure when washing is performed in a reserved driving course. FIG. 12 is a flowchart showing the procedure of the washing step SP2a in the reserved operation course. FIG. 13 is a flowchart showing the procedure of the intermediate dehydration step SP3a in the reserved operation course. FIG. 14 is a flowchart showing the procedure of the rinsing step SP4a in the reserved driving course. FIG. 15 is a flowchart showing the procedure of the final dehydration step SP5a in the reserved operation course.

  In the present embodiment, the time acquisition unit 27 (see FIG. 3) also includes the start of the intermediate dehydration process SP3a, the start of the rinse process SP4a, and the start of the final dehydration process SP5a in addition to the start of the washing process SP2a. The remaining time until the end target time is acquired.

  Further, each time the time acquisition unit 27 acquires the remaining time, the control unit 7 determines whether to execute the next step in the normal reservation mode or the special reservation mode based on the remaining time.

  Specifically, first, in the general procedure for washing in the reserved driving course shown in FIG. 11, the driving course is set in step SP1a. The procedure for setting the driving course in step SP1a is the same as steps SP11 to SP14 shown in FIG. Thereafter, a washing step SP2a, an intermediate dehydration step SP3a, a rinsing step SP4a, and a final dehydration step SP5a are sequentially performed.

  In the washing process of step SP2a shown in FIG. 12, a step SP21a for determining whether or not the remaining time acquired by the time acquisition unit 27 is equal to or longer than the time required for the first special reservation mode is to confirm whether or not the special reservation mode is set. 6 is the same as the procedure of the washing step SP2 shown in FIG. 6 except that it is performed instead of the step 21 shown in FIG. The time required for the first special reservation mode is a time required for executing the washing process SP2a, the intermediate dehydration process SP3a, the rinsing process SP4a, and the final dehydration process SP5a in the special reservation mode. If it is determined that the remaining time is equal to or longer than the time required for the first special reservation mode, the process proceeds to step SP22. If it is determined that the remaining time is not equal to or longer than the time required for the first special reservation mode, the process proceeds to step SP24.

  The intermediate dehydration process of step SP3a shown in FIG. 13 confirms whether or not the special reservation mode is performed in step SP31a for determining whether or not the remaining time acquired by the time acquisition unit 27 is equal to or longer than the time required for the second special reservation mode. The procedure is the same as that of the intermediate dehydration step SP3 shown in FIG. 7 except that the procedure is performed instead of step 31 shown in FIG. The time required for the second special reservation mode is the time required to execute the intermediate dewatering process SP3a, the rinsing process SP4a, and the final dewatering process SP5a in the special reservation mode. If it is determined that the remaining time is equal to or longer than the time required for the second special reservation mode, the process proceeds to step SP32. If it is determined that the remaining time is not equal to or longer than the required time for the second special reservation mode, the process proceeds to step SP34.

  In the rinsing process of step SP4a shown in FIG. 14, the step SP41a for determining whether or not the remaining time acquired by the time acquisition unit 27 is equal to or longer than the time required for the third special reservation mode is to confirm whether or not the special reservation mode is set. 8 is the same as the procedure of the rinsing step SP4 shown in FIG. 8 except that it is performed instead of the step 41 shown in FIG. The time required for the third special reservation mode is the time required to execute the rinsing process SP4a and the final dewatering process SP5a in the special reservation mode. If it is determined that the remaining time is equal to or longer than the time required for the third special reservation mode, the process proceeds to step SP42. If it is determined that the remaining time is not equal to or longer than the required time for the third special reservation mode, the process proceeds to step SP44.

  In the final dehydration step of step SP5a shown in FIG. 15, step SP51a for determining whether the remaining time acquired by the time acquisition unit 27 is equal to or longer than the time required for the fourth special reservation mode is confirmed as to whether the special reservation mode is set. The procedure of the final dehydration step SP5 shown in FIG. 9 is the same as that shown in FIG. 9, except that it is performed instead of step 51 shown in FIG. The fourth special reservation mode required time is a time required to execute the final dewatering step SP5a in the special reservation mode. If it is determined that the remaining time is equal to or longer than the time required for the fourth special reservation mode, the process proceeds to step SP52. If it is determined that the remaining time is not equal to or longer than the required time for the fourth special reservation mode, the process proceeds to step SP54. In addition, the control part 7 performs judgment in step SP21a-SP51a. The time required for the first to fourth special reservation modes is obtained from the data stored in advance in the ROM 71 in accordance with the load amount.

  In this way, it is possible to review whether the process is executed in the normal reservation mode or the special reservation mode before the start of each step SP2a, SP3a, SP4a, SP5a, and it becomes necessary to perform irregular operations and the like. Even if a loss occurs, washing can be completed by the scheduled end time.

  The specific configuration of each unit is not limited to the above-described embodiment.

  For example, in the above embodiment, the average rotation speed of the motor 61 is adjusted by changing the rotation speed of the motor 61 based on the special reservation mode rotation speed or the normal rotation speed taken out from the ROM 71. The configuration is such that the average rotational speed of the motor 61 is adjusted to a predetermined value by changing the ratio of the ON time and the OFF time of the motor 61 in each process by ON / OFF control of the motor 61. There may be. In this case, the water flow values in the washing process and the rinsing process are adjusted by the ratio of the rotation time of the pulsator 5 to the execution time of each process.

  In the above embodiment, the target end time is set to a time earlier than the scheduled end time, but the target end time may be set to the same time as the planned end time.

  Moreover, although the said embodiment is the vertical washing machine 1, you may make it perform the reservation driving | operation mentioned above in the drum-type washing machine. In this case, the motor 61 rotates the washing tub.

  Furthermore, the plurality of steps for washing clothes are not limited to the washing step SP2 (SP2a), the intermediate dehydration step SP3 (SP3a), the rinsing step SP4 (SP4a), and the final dehydration step SP5 (SP5a), but other steps. Or any of these steps may not be employed.

  Other configurations can be variously modified without departing from the spirit of the present invention.

DESCRIPTION OF SYMBOLS 1 ... Washing machine 2 ... Washing machine main body 4 ... Washing tub 7 ... Mode determination means (control part)
27 ... Time acquisition means (time acquisition unit)
61 ... motors SP2, SP2a ... washing process SP3, SP3a ... dehydration process (intermediate dehydration process)
SP4, SP4a ... Rinsing step SP5, SP5a ... Dehydration step (final dehydration step)

Claims (5)

A washing machine main body having an input unit capable of arbitrarily inputting a scheduled end time of washing, a washing tub arranged inside the washing machine main body, and a drive for rotating the laundry to be stored in the washing tub A washing machine capable of performing a reserved operation for ending a plurality of steps of washing the laundry by the scheduled end time,
Time acquisition means for acquiring a remaining time until an end target time set based on the scheduled end time before the start of the first step among the plurality of steps;
Based on the remaining time acquired by the time acquisition means, each of the plurality of steps is performed in a predetermined execution time while setting the average rotation speed of the motor to a predetermined value, or more than the normal reservation mode. A washing machine comprising: mode determination means for determining which of the special reservation modes in which the average rotation speed of the motor is small and the execution time is long is set. The plurality of steps are a washing step, a rinsing step, and a dehydrating step,
If the mode determination means determines that the remaining time acquired by the time acquisition means is greater than or equal to the time required for executing all of the washing process, the rinsing process, and the dehydrating process in the special reservation mode, the special reservation is made for all processes. Decide to run in mode,
When it is determined that the remaining time acquired by the time acquisition means is not longer than the time required for executing all of the washing process, the rinsing process, and the dehydrating process in the special reservation mode, all the processes are executed in the normal reservation mode. The washing machine according to claim 1, wherein: The plurality of steps are a washing step, a rinsing step, and a dehydrating step,
The mode determining means includes
When it is determined that the remaining time acquired by the time acquisition means is longer than the time required for executing all of the washing process, the rinsing process, and the dehydrating process in the special reservation mode, all the processes are executed in the special reservation mode. As well as
When it is determined that the remaining time is not longer than the time required for executing all the processes in the special reservation mode, the remaining time is executed in a special reservation mode in some of the plurality of processes. The washing machine according to claim 1, wherein when it is determined that the time required for executing another process in the normal reservation mode is equal to or more than a time required, only a part of the process is determined to be executed in the special reservation mode. The plurality of steps are a washing step, a rinsing step, and a dehydrating step,
The time acquisition means acquires the remaining time until the end target time before the start of the rinsing process and before the start of the dehydration process, in addition to before the start of the washing process as the first process,
2. The mode determination unit according to claim 1, wherein each time the time acquisition unit acquires a remaining time, the mode determination unit determines whether to execute the next step in the normal reservation mode or the special reservation mode based on the remaining time. Washing machine.   The washing machine according to any one of claims 1 to 4, wherein a time that is a predetermined time before the scheduled end time input to the input unit is set as a target end time.

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