JP4771995B2 - Washing and drying machine - Google Patents

Description

  The present invention relates to a washing dryer having a drying function and capable of detecting a cloth amount.

Conventionally, the amount of laundry is detected before drying is performed, and if the detected amount of laundry exceeds a predetermined allowable drying amount, drying is performed for the purpose of avoiding drying time, uneven drying and wrinkle increase. A washing / drying machine that is not executed is provided (see Patent Document 1). On the other hand, even if there is an increase in drying time, uneven drying and wrinkles, or a decrease in drying performance, it may be desired to perform drying, so drying is not performed uniformly depending on the amount of laundry detected. The method is not desirable.
Japanese Patent No. 2658268

  However, when the amount of laundry exceeds the allowable drying amount, when drying with rotation of the laundry tub is executed, it is relatively higher in the laundry tub than when the amount is less than the allowable drying amount. Since the drying is executed in a state where the laundry is filled up to the time, when the dryness of the laundry progresses, the laundry that has expanded due to a decrease in moisture content tends to jump out of the rotating laundry tub. There was a problem of becoming. In this case, when the parts outside the washing tub come into contact with the laundry, the parts outside the washing tub and / or the laundry may be damaged by the rotational force of the washing tub.

  This invention is made | formed in view of such a situation, and the place made into the objective changes the drive method of a washing tub and / or a stirring blade, when the quantity of the laundry exceeds dry tolerance. Accordingly, an object of the present invention is to provide a washing / drying machine capable of allowing drying to proceed while ensuring the safety of driving.

  The washing / drying machine according to the present invention is provided with a washing tub having an agitating blade so as to be rotatable, and has a detecting means for detecting the amount of laundry in the washing tub when washing, based on the detection result of the detecting means. In the washing / drying machine that performs drying at the rotation speed set in the above, a determination unit that determines whether or not the amount of the laundry detected by the detection unit exceeds a predetermined amount, and the determination unit exceeds the predetermined amount If it is determined that, the drying tub includes means for rotating the washing tub at a lower rotational speed than the set rotational speed.

  In the present invention, when it is determined that the amount of laundry exceeds a predetermined drying allowance, the laundry tub is rotated at a rotational speed lower than the rotational speed set according to the amount of laundry when drying. And let the laundry stir. As a result, even when the dryness increases and the laundry expands, the centrifugal force generated by the rotation of the laundry tub prevents the laundry from jumping out of the laundry tub, and the laundry is further dried. Let

  The washing / drying machine according to the present invention is provided with a washing tub having an agitating blade so as to be rotatable, and has a detecting means for detecting the amount of laundry in the washing tub when washing, based on the detection result of the detecting means. In the washing / drying machine that performs drying at the rotation speed set in the above, a determination unit that determines whether or not the amount of the laundry detected by the detection unit exceeds a predetermined amount, and the determination unit exceeds the predetermined amount In the case of determining, the drying tub is provided with means for rotating the stirring blade without rotating the washing tub.

  In the present invention, when it is determined that the amount of laundry exceeds a predetermined drying allowance, the agitation blade is rotated without rotating the laundry tub, and the laundry is agitated. This reduces the drying performance as compared with the case where the laundry tub is rotated, but prevents the laundry from jumping out of the laundry tub even when the dryness increases and the laundry expands. Allow the laundry to dry.

  The washing / drying machine according to the present invention is characterized by comprising a notifying means for notifying a result of the determination when the determining means determines that the predetermined amount is exceeded.

  In the present invention, when it is determined that the amount of laundry exceeds the predetermined drying allowance, the notification means notifies that fact. As a result, the user is notified that the content of the drying operation will be changed. Accordingly, the user is prompted to adjust the amount of laundry to be reduced.

  The washing / drying machine according to the present invention includes a receiving unit that receives an operation of invalidating the result of the determination.

  In the present invention, when an operation for invalidating the determination result that the amount of laundry exceeds the allowable drying amount is set to not change the content of the drying operation. As a result, when the user appropriately reduces the amount of laundry and performs the above operation, the content of the drying operation is performed without changing the content of the drying operation.

  The washing / drying machine according to the present invention is characterized in that the accepting means accepts the operation from the time when the judging means judges until the time when drying is started.

  In the present invention, from the time when it is determined whether the amount of laundry exceeds the allowable drying amount to the time when drying is started, an operation that invalidates the result of the determination can be accepted at any time. As a result, a period during which the operation can be received is ensured to the maximum.

  The washing / drying machine according to the present invention includes a timing unit that starts timing when it is determined that the determination unit exceeds the predetermined amount, and the detection unit includes the timing unit when the reception unit receives an operation. When a predetermined time is counted, detection is performed again.

  In the present invention, when it is determined that the amount of laundry exceeds a predetermined drying allowance, and when an operation for canceling the result of the determination is received before the predetermined time has elapsed, Again, the amount of laundry is detected and it is determined whether or not the allowable drying amount is exceeded. Thereby, when the user performs the above operation while reducing the amount of laundry within a predetermined time, it is determined whether or not the amount of laundry exceeds the allowable drying amount.

  According to the present invention, when the amount of laundry exceeds a predetermined drying allowance, the laundry tub is rotated at a rotation speed lower than the rotation number determined according to the amount of the laundry, or the laundry tub is dried. The laundry is agitated by rotating the stirring blade without rotating the. This prevents or prevents the laundry from jumping out of the laundry tub during rotation of the laundry tub. Therefore, drying can be advanced while ensuring the safety of operation. Further, it is possible to avoid the possibility that parts outside the washing tub and / or the laundry are damaged.

Hereinafter, the present invention will be described in detail with reference to the drawings illustrating embodiments thereof.
(Embodiment 1)
FIG. 1 is a longitudinal sectional view showing the configuration of the washing / drying machine according to Embodiment 1 of the present invention. In the figure, reference numeral 1 denotes an exterior, and a water tank (outer tank) 2 is suspended inside the exterior 1 by a vibration isolation mechanism 3. The water tank 2 is provided with a bottomed cylindrical dewatering tank 4 that also serves as a washing tank, and a stirring blade 5 that stirs the washing water and the laundry is rotatably disposed on the inner bottom of the dewatering tank 4. Yes. A drain port 2 a is provided at the lower end of the water tank 2, and a drain hose 14 with a drain valve 13 interposed is attached.

  A motor 7 for rotating the dewatering tank 4 and the stirring blade 5 is disposed on the outer bottom of the water tank 2. The motor 7 includes a rotation speed detection device 25 that detects the rotation speed of the motor 7. The rotational driving force of the motor 7 is transmitted to the center pulley 11 via the motor pulley 9 and the V belt 10. A washing shaft 15, a clutch 12, and a speed reduction mechanism 8 are connected to the center pulley 11, and the tip of the speed reduction mechanism 8 protrudes into the water tank 2 and is attached with a stirring blade 5 and a dehydration tank 4.

  The speed reduction mechanism 8 includes a brake mechanism 24 that brakes the rotation of the dewatering tank 4. The case of the speed reduction mechanism 8 functions as a brake drum, and the brake band of the brake mechanism 24 is wound around the outer periphery of the case. The brake band is connected to a brake lever, and the brake lever is further connected to a drain motor 27 provided on the outer bottom of the water tank 2. The drain motor 27 is also connected to the drain valve 13.

  The drain motor 27 functions as a driving unit for the clutch 12, the brake mechanism 24, and the drain valve 13. In the case of dehydration, when the drain motor 27 is turned on and the drain valve 13 is opened, the clutch 12 is engaged, the brake mechanism 24 is opened, and the dehydration tank 4 rotates. When washing or rinsing, if the drain motor 27 is turned off and the drain valve 13 is closed, the clutch 12 is disengaged and the brake mechanism 24 is activated to brake the rotation of the dewatering tank 4. In this case, the rotational driving force of the motor 7 is not transmitted to the dehydration tank 4, and the stirring blade 5 is rotated by the speed reduction mechanism 8.

A water level sensor 17 communicated with the water tank 2 and a water supply valve 18 for supplying city water to the water tank 2 are disposed on the back side of the inner upper portion of the exterior 1. The upper part of the exterior 1 is covered with an upper surface plate 19. A lid 16 is provided at the center of the top plate 19 so as to be openable and closable, and covers the upper part of the dehydration tank 4. Opening / closing of the lid 16 is detected by a lid switch 26 on the front side of the upper surface plate 19 and is locked by a lid locking mechanism. The lid lock mechanism has a latch structure in which locking / unlocking is switched every time the lid locking solenoid 22 disposed immediately below the front surface of the lid 16 is turned on.
An operation unit 20 is provided on the front surface side of the upper surface plate 19, and the operation unit 20 is connected to a control circuit 21 disposed immediately below the operation unit 20 below the upper surface plate 19.

  FIG. 2 is an explanatory diagram showing the appearance of the operation unit 20. The operation unit 20 includes operation buttons 111 to 120 such as a start key, a power on / off key, and display lamps 121 to 133 using LEDs. Operations on the operation buttons 111 to 120 are input to the control circuit 21, and the display contents of the display lamps 121 to 133 are updated in accordance with the operations received by the control circuit 21 and the progress of washing, rinsing, dehydration and drying. .

  FIG. 3 is a block diagram illustrating a schematic configuration of the control circuit 21. The core of the control circuit 21 is the CPU 42 of the microcomputer 41. The microcomputer 41 is composed of a CPU 42, a RAM 43, a ROM 44, a timer 45, a system bus 46, and a plurality of I / O ports 47. Yes. The timer 45 is directly connected to the CPU 42 and is used as a time measuring means.

  The CPU 42 includes a control unit 48 and a calculation unit 49. The control unit 48 reads a control program stored in advance in the ROM 44, decodes and executes the instruction, and stores temporarily generated data in the RAM 43. The operation unit 49 performs operations such as binary addition / subtraction, logical operation, and comparison on the data read from the RAM 43 and the data input from the I / O port 47. Further, the ROM 44 stores, as fixed data, means for operating various devices to be controlled, conditions set for various determinations, rules for controlling various information, and the like.

  A plurality of I / O ports 47 of the microcomputer 41 are connected to an operation unit via an input key circuit 52, a display device drive circuit 53, a lid open / close state detection circuit 54, a rotation speed detection circuit 55, and a buzzer drive circuit 56, respectively. 20 operation buttons 111 to 120, display lamps 121 to 133 of the operation unit 20, a lid switch 26, a rotation speed detection device 25, and a buzzer 28 for sounding an operation / warning sound are connected. Further, the motor 7, the drain motor 27, the water supply valve 18, and the lid locking solenoid 22 are connected to the I / O port 47 through a load driving circuit 57.

  The microcomputer 41 operates when a predetermined voltage is supplied from the power supply circuit 50 to the power supply terminals Vdd and Vss, and is reset when a RESET (reset) signal is input from the reset circuit 51. The general operation performed by the CPU 42 of the microcomputer 41 includes, for example, the on / off state of the lid switch 26 read via the lid open / close state detection circuit 54 and the rotation speed detection device 25 read via the rotation speed detection circuit 55. Based on the number of rotations (number of pulses per unit time), driving control of the load driving circuit 57, the display device driving circuit 53, and the buzzer driving circuit 56 can be mentioned. When the user turns on the power by pressing the power on / off key (operation button 118), the standard course is set by the initial setting of the CPU 42 (the standard LED of the display lamp 128 is lit), and the user switches between washing and drying. Each time the key (operation button 120) is pressed, a washing operation from washing to dehydration or a washing / drying operation from washing to drying is switched.

  Next, taking a standard washing / drying operation as an example, a series of operations by the washing / drying machine will be described. When the user puts the laundry into the dewatering tub 4 and presses the washing / drying switch key (operation button 120) to select the washing / drying operation and then presses the start key (operation button 117), the cloth amount is detected first. The water level in washing and rinsing is determined according to the detected amount of laundry, and data such as operation time at each stage of operation including dehydration and drying are determined. Thereafter, an amount of detergent corresponding to the water level determined by the cloth amount detection is input by the user, and the operation is started.

  Here, the cloth amount is detected by driving the motor 7 and rotating the stirring blade 5 intermittently for a predetermined time against the resistance of the laundry, thereby detecting the degree of decrease in the rotational speed of the motor 7. Detect the amount of. Specifically, the rotational speed of the motor 7 is detected by the rotational speed detection device 25 while the driving of the motor 7 is stopped during the above-described stirring, and the amount of laundry is determined based on the detected rotational speed. .

  In washing, the water supply valve 18 is turned on, water supply for injecting city water to the water level determined by the cloth amount detection, and stirring for washing the laundry by rotating the stirring blade 5 are executed.

In rinsing, by turning on the drain motor 27, drainage that opens the drain valve 13 and drains the water in the dewatering tank 4 and intermediate dewatering that performs dewatering after the drainage is completed are performed.
In the intermediate dehydration, the dewatering tank 4 is rotated to be in a dewatering drive state by turning on or off the motor 7 with the drain motor 27 turned on or continuing to be on. Thereafter, when the operation time determined by the cloth amount detection elapses, the dehydration tank 4 enters the inertial rotation state by turning off the motor 7, and when the predetermined time has passed, the brake motor is turned off. 24 operates to stop the rotation of the dewatering tank 4 and the intermediate dewatering is completed.
Next, the same water supply as in the case of washing and stirring for rinsing detergent components contained in the laundry by washing are performed. Further, the water supply and the agitation are performed once, and the number of times of rinsing is determined by a set course.

  In the dehydration, drainage and intermediate dehydration are performed as in the case of rinsing.

  In the drying, the rotation of the tank for evaporating the water contained in the laundry by the wind generated by rotating the dewatering tank 4 and the cloth unraveling that is stirred by the stirring blade 5 while the dewatering tank 4 is stopped Repeatedly until the operation time determined by detection elapses. The purpose of the cloth unraveling is to prevent drying unevenness and wrinkles of the laundry by peeling off the laundry that is pressed against the inner wall of the dewatering tub 4 from the inner wall by the centrifugal force generated by the rotation of the tub. Is what you do. When the drying is completed, the buzzer 28 is sounded in the operation end process to notify the end of the washing operation.

  FIG. 4 is a chart for explaining the types of drying and the operation contents. Drying 1 is applied in a standard case where the result of cloth amount detection does not exceed the allowable drying amount. In the drying 1, the tank rotation time and the cloth unraveling time are 5 minutes and 2 minutes, respectively, and the tank rotation and the cloth unraveling are alternately and repeatedly performed within the total drying time of 3 hours. The rotation speed of the dehydration tank 4 in the tank rotation (tank rotation speed) is 900 rpm at maximum, and the rotation of the stirring blade 5 in the cloth unwinding is 90 rpm, and the motor 7 is turned on for 0.8 seconds / 2 seconds off. It drives with the period of.

  Drying 2 is applied when the result of the cloth amount detection exceeds the allowable drying amount. In the drying 2, in order to avoid a part of the laundry having a high degree of drying from jumping out of the dehydrating tank 4 during the rotation of the tank, the tank is not rotated. Therefore, only the cloth unraveling is repeatedly performed within 3 hours which is the total drying time. In the drying 2, the desired drying performance cannot be obtained, but evaporation of moisture contained in the laundry can be promoted by repeated cloth loosening.

  Drying 3 is applied when the result of the cloth amount detection exceeds the allowable drying amount. In the drying 3, the rotation speed of the dehydration tank 4 (tank rotation speed) is lowered to 300 rpm at maximum with respect to the drying 1, but the drying effect by the tank rotation not in the drying 2 is obtained. Therefore, the drying performance can be improved as compared with the drying 2 while suppressing the jumping-out of the laundry while the tub is rotating.

  FIG. 5 is a flowchart showing the processing procedure of the CPU 42 in the washing / drying operation. The following processing is executed by the CPU 42 in accordance with a control program stored in advance in the ROM 44 of the microcomputer 41. An excess capacity flag (hereinafter referred to as excess capacity FLG) for storing that the amount of laundry exceeds the allowable drying amount is stored in the RAM 43, and “0” is written at the time of initialization by the CPU. . The drying LED (display lamp 133) is lit by display control of the CPU 42 when the user selects the washing / drying operation. When the user presses the start key (operation button 117), the following processing starts.

The CPU 42 first detects the cloth amount (step S11). Then, the CPU 42 determines whether or not the result of the cloth amount detection is 3 kg or less, which is the allowable drying amount (step S12). When it is determined that the result of the cloth amount detection exceeds 3 kg (step S12: NO), the CPU 42 writes “1” in the excess capacity FLG (step S13). Thereafter, the CPU 42 causes the drying LED (display lamp 133) to blink at a cycle of 1 second on / 1 second off (step S14).
The LED corresponding to each stage (washing, rinsing, dehydration or drying) in operation (for example, in the case of washing, the indicator LED 125 washing LED) has a cycle of 0.5 sec on / 0.5 sec off. The LED corresponding to each stage that has finished execution (or each stage that is refraining from execution) is turned off (or turned on) to display a progress indicator during operation. Therefore, the blinking cycle is set twice as long as the progress display.
Note that the notification of the excess dry capacity to the user is not limited to LED display, but may be made by sound or sound from a buzzer.

  When it is determined that the result of the cloth amount detection is 3 kg or less (step S12: YES) or when the process of step S14 is completed, the CPU 42 performs washing (step S15), rinsing (step S16), and dewatering (step S17). Are executed sequentially. In this case, when the result of the cloth amount detection is 3 kg or less, the drying LED (display lamp 133) is in a lighting state. However, when the result of the cloth amount detection exceeds 3 kg, the drying result is determined by the processing result of step S14. The LED (display lamp 133) is blinking. This blinking notifies the user that the content of the drying operation will be changed later (that is, the type of drying shown in FIG. 4 is changed).

Next, the CPU 42 determines whether or not the excess capacity FLG is “1” (step S18). When it is determined that the excess capacity FLG is not “1” (step S18: NO), the CPU 42 executes standard drying 1 applied when the allowable drying amount is not exceeded (step S19). When it is determined that the excess capacity FLG is “1” (step S18: YES), the CPU 42 executes the drying 2 applied when the allowable drying amount is exceeded (step S20). When the process of step S19 or step S20 is completed, the CPU 42 executes an operation end process (step S21) and ends the process.
Instead of drying 2, drying 3 may be executed in which the maximum tank rotation speed is reduced from that of drying 2. Moreover, you may change the time and / or rotation speed of the cloth unraveling in drying 2 or 3 (refer FIG. 4).

FIG. 6 is a flowchart showing a processing procedure of the CPU 42 related to reception of the drying key (operation button 119). When executing each stage of washing, rinsing and dewatering, the following processing is started by the CPU 42 each time and executed in parallel with the above stages.
The CPU 42 determines whether or not the stage (either washing, rinsing or dehydration) at that time has ended, that is, whether or not the operation time of each stage determined by the cloth amount detection has been exceeded (step S31). If it is determined that the stage at that time has ended (step S31: YES), the CPU 42 ends the process.

  If it is determined that the stage at that time has not ended (step S31: NO), the CPU 42 determines whether or not the excess capacity FLG is “1” (step S32). If it is determined that the capacity excess flag is not “1” (step S32: NO), the CPU 42 returns the process to step S31. When it is determined that the capacity excess flag is “1” (step S32: YES), the CPU 42 determines whether or not the pressing of the drying key (operation button 119) is accepted (step S33).

When it is determined that the pressing of the drying key (operation button 119) is not accepted (step S33: NO), the CPU 42 returns the process to step S31. When it is determined that the pressing of the drying key (operation button 119) has been accepted (step S33: YES), the CPU 42 writes “0” in the excess capacity FLG (step S34) and blinks the drying LED (display lamp 133). It changes to lighting (step S35), and a process is returned to step S31.
Note that if the user is informed of the excess dry capacity by sound or sound from the buzzer, the buzzer or sound output is stopped before the process returns to step S31.

When the drying LED (indicator lamp 133) is flashing during execution of each stage of washing, rinsing or dehydration (step S15, step S16 or step S17 in FIG. 5 respectively) (that is, the excess capacity FLG is “1”). In some cases, when the user presses the drying key (operation button 119), the content of the excess capacity FLG is changed from “1” to “0” by the above processing. Thereby, the process of FIG. 5 moves from step S18 to step S19, and standard drying 1 is executed.
Therefore, for example, when the user notices that the drying LED (indicator lamp 133) is lit during each step of washing, rinsing, or dehydrating, the user presses the start key (operation button 117) and presses the step. When the amount of the laundry is reduced to the allowable drying amount and the start key (operation button 117) is pressed again to resume the stage, the laundry is sufficiently dried by drying 1. Can do.

  In the washing / drying machine according to Embodiment 1 configured as described above, when the amount of laundry exceeds a predetermined drying allowance, the maximum rotational speed is reduced to 1/3 of the standard case. Then, the laundry tub is rotated, or the laundry is agitated by rotating the stirring blades intermittently without rotating the laundry tub. This prevents or prevents the laundry from jumping out of the laundry tub during rotation of the laundry tub. Therefore, drying can be advanced while ensuring the safety of operation. Further, it is possible to avoid the possibility that parts outside the washing tub and / or the laundry are damaged.

  Further, if the amount of laundry exceeds a predetermined drying allowance, a message to that effect is displayed. As a result, the user is notified that the contents of the drying operation will be changed, and the user is prompted to adjust the amount of laundry.

  That is, it is possible to achieve the object of providing a washing / drying machine capable of notifying the user that the operation content of drying is changed.

  Furthermore, when an operation of pressing the drying key for invalidating the determination result that the amount of laundry exceeds the allowable drying amount is set, the content of the drying operation is not changed. As a result, when the user appropriately reduces the amount of laundry and presses the drying key, the content of the drying operation is not changed and the content set according to the amount of laundry is executed. In this case, the trouble that the user once turns off / on the power and sets the type of drying again is avoided.

  That is, it is possible to achieve the object of providing a laundry dryer that can simply invalidate the determination result that the amount of laundry exceeds the allowable drying amount.

  Furthermore, from the time when it is determined whether or not the amount of laundry exceeds the allowable drying amount, the operation that invalidates the result of the above determination can be accepted at any time from the time when washing, rinsing and dehydration are finished and drying is started. It is as. As a result, a period during which the operation can be received is ensured to the maximum.

  In other words, it is possible to achieve the object of providing a laundry dryer that can accept the determination that the amount of the laundry exceeds the allowable drying amount at any time until the drying is started.

(Embodiment 2)
FIG. 7 is a flowchart showing a processing procedure of the CPU 42 in the washing / drying operation according to the second embodiment. The drying LED (display lamp 133) is lit by display control of the CPU 42 when the user selects the washing / drying operation. When the user presses the start key (operation button 117), the following processing starts.

The CPU 42 first detects the cloth amount (step S41). Then, the CPU 42 determines whether or not the result of the cloth amount detection is 3 kg or less, which is the allowable drying amount (step S42). When it is determined that the result of the cloth amount detection exceeds 3 kg (step S42: NO), the CPU 42 writes “1” in the excess capacity FLG (step S43). Then, the CPU 42 causes the drying LED (display lamp 133) to blink at a cycle of 1 second on / 1 second off (step S44), and then stops for 2 minutes (step S45).
Note that the notification of the excess dry capacity to the user is not limited to LED display, but may be made by sound or sound from a buzzer.

In the stop, all driving by the load driving circuit 57 is stopped. The execution time of the stop is assumed to be 2 minutes as the time required for the user to perform the work of reducing the laundry to the allowable drying amount.
In executing the stop, the CPU 42 starts processing related to reception of the drying key (operation button 119) in FIG. 6 and executes it in parallel with the stop. As a result, when the pressing of the drying key (operation button 119) is accepted during execution of the stop (step S33: YES), the CPU 42 writes “0” in the excess capacity FLG (step S34) and also displays the drying LED (display). The blinking of the lamp 133) is changed to lighting (step S35).

  When the stop is finished, the CPU 42 determines whether or not the excess capacity FLG is “1” (step S46). When it is determined that the excess capacity FLG is not “1” (step S46: NO), the CPU 42 returns the process to step S41. As a result, the user presses the drying key (operation button 119) in the processing related to the reception of the drying key (operation button 119) in FIG. 6 executed in parallel with the stop (step S45), and the CPU 42 has the capacity. When the content of the excess FLG is changed from “1” to “0”, the CPU 42 performs the processing from step S41 to step S46 until it determines that the result of the cloth amount detection is 3 kg or less (step S42: YES). Run each time. Therefore, the user can gradually adjust the amount of laundry to 3 kg or less, which is an allowable drying amount.

  In addition, during the stop, when the pressing of the drying key (operation button 119) is received in the processing related to the reception of the drying key (operation button 119) in FIG. 6, the start key (operation button 117) is then pressed. When the press is accepted, the stop may be terminated. In this case, the CPU 42 skips the remaining stop time and shifts the processing to the cloth amount detection, thereby shortening the cycle (steps S41 to S46) in which the user can adjust the amount of laundry. It becomes possible.

  When it is determined that the result of the cloth amount detection is 3 kg or less (step S42: YES) or when it is determined that the excess capacity FLG is “1” (step S46: YES), the CPU 42 performs washing (step S47). Rinsing (step S48) and dehydration (step S49) are sequentially executed. In this case, when the result of the cloth amount detection is 3 kg or less, the drying LED (display lamp 133) is in a lighting state. However, when the result of the cloth amount detection exceeds 3 kg, the drying result is determined by the processing result of step S44. The LED (display lamp 133) is blinking.

Next, the CPU 42 determines whether or not the excess capacity FLG is “1” (step S50). When it is determined that the excess capacity FLG is not “1” (step S50: NO), the CPU 42 executes standard drying 1 corresponding to the case where the allowable drying amount is not exceeded (step S51). When it is determined that the excess capacity FLG is “1” (step S50: YES), the CPU 42 executes the drying 2 to take measures in response to the case where the allowable drying amount is exceeded (step S52). When the process of step S51 or step S52 is completed, the CPU 42 executes an operation end process (step S53) and ends the process.
Instead of drying 2, drying 3 in which the number of revolutions of the tank is reduced from that in the case of drying 2 may be executed. Moreover, you may change the time of the tank rotation in the drying 3, and may also change the time and / or rotation speed of the cloth unraveling in the drying 2 or 3.

  Other parts corresponding to those of the first embodiment are denoted by the same reference numerals, and detailed description thereof is omitted.

  In the washing / drying machine according to Embodiment 2 configured as described above, when it is determined that the amount of laundry exceeds a predetermined allowable drying amount, the determination is made until two minutes have passed thereafter. When the drying key pressing operation for canceling the result is accepted, the amount of laundry is detected again and it is determined whether or not the allowable drying amount is exceeded. As a result, when the user depresses the amount of laundry and presses the drying key within a predetermined time, it is determined whether or not the amount of laundry exceeds the allowable drying amount. In this case, the trouble that the user once turns off / on the power and sets the type of drying again is avoided.

  That is, it is possible to achieve the object of providing a laundry dryer that can easily adjust the amount of laundry any number of times until the amount of laundry falls below the allowable drying amount.

It is a longitudinal cross-sectional view which shows the structure of the washing / drying machine which concerns on Embodiment 1 of this invention. It is explanatory drawing which shows the external appearance of an operation part. It is a block diagram which shows schematic structure of a control circuit. It is a chart explaining the classification and operation content of drying. It is a flowchart which shows the process sequence of CPU in a washing-and-dry operation. It is a flowchart which shows the process sequence of CPU which concerns on reception of a dry key. 5 is a flowchart showing a processing procedure of a CPU in a washing and drying operation according to Embodiment 2.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Exterior 2 Water tank 2a Drain port 3 Anti-vibration mechanism 4 Dehydration tank 5 Stirring blade 7 Motor 8 Deceleration mechanism 9 Motor pulley 10 V belt 11 Center pulley 12 Clutch 13 Drain valve 14 Drain hose 15 Washing shaft 16 Lid 17 Water level sensor 18 Water supply valve 19 Top plate 20 Operation unit 21 Control circuit 22 Lid lock solenoid 24 Brake mechanism 25 Rotational speed detection device 26 Lid switch 27 Drain motor 28 Buzzer 41 Microcomputer 42 CPU
43 RAM
44 ROM
45 timer 46 system bus 47 I / O port 48 control unit 49 arithmetic unit 50 power supply circuit 51 reset circuit 52 input key circuit 53 display device drive circuit 54 lid open / close state detection circuit 55 rotation speed detection circuit 56 buzzer drive circuit 57 load drive circuit 111-120 Operation buttons 121-133 Indicator lamp

Claims (6)

A washing tub having an agitating blade is rotatably provided, has a detecting means for detecting the amount of laundry in the washing tub when washing, and is dried at a rotation speed set based on the detection result of the detecting means. In the washing and drying machine
Determination means for determining whether or not the amount of laundry detected by the detection means exceeds a predetermined amount;
And a means for rotating the washing tub at a lower rotational speed than the set rotational speed when drying when it is determined that the determination means exceeds a predetermined amount. A washing tub having an agitating blade is rotatably provided, has a detecting means for detecting the amount of laundry in the washing tub when washing, and is dried at a rotation speed set based on the detection result of the detecting means. In the washing and drying machine
Determination means for determining whether or not the amount of laundry detected by the detection means exceeds a predetermined amount;
And a means for rotating the stirring wing without rotating the washing tub when drying when the determination means determines that the predetermined amount is exceeded.   The washing / drying machine according to claim 1 or 2, further comprising a notification unit that notifies a result of the determination when the determination unit determines that the predetermined amount is exceeded.   The washing and drying machine according to any one of claims 1 to 3, further comprising a reception unit that receives an operation that invalidates the result of the determination.   The washing / drying machine according to claim 4, wherein the accepting unit is configured to accept the operation from when the determining unit determines until the start of drying. If it is determined that the determination means exceeds the predetermined amount, the time measurement means for starting time measurement,
The washing and drying according to claim 4 or 5, wherein, when the receiving unit receives an operation, the detecting unit performs detection again when the time measuring unit measures a predetermined time. Machine.

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