JP2001276470A - Timing method for drying operation of washing and drying machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a method for the drying operation of a washing and drying machine capable of reducing the rate of entanglement of clothes during a drying process, preventing delay of drying of entangled portions and wrinkling, and avoiding noises due to imbalance during rotation of a wash-spin basket. SOLUTION: In this washing and drying machine, entanglement of clothes is detected during the drying process. If entanglement of the clothes is detected, an agitator is rotated at either a pattern for making its rotating angle smaller than that of the rotation pattern of the agitator effected in an agitating process during the drying process, or a pattern for increasing the number of times of inversion, or a combination of the two patterns.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a drying operation method for a washing and drying machine having a drying process.

[0002]

2. Description of the Related Art A washing / drying machine having a drying function for drying by bringing hot air into contact with laundry stored in a washing / dewatering tub is provided, for example, as shown in FIG. The outer tub 2 is swingably disposed through the tub, and the washing and dewatering tub 4 provided with the rotating blades 5 at the bottom is rotatably disposed in the outer tub 2.
A motor 6 and a mechanism 7 such as a clutch switching mechanism are attached to a lower portion of the outer tub 2, and an opening on an upper surface of the washing and dewatering tub 4 is covered with a top cover 9 having a lid 8. Hot air supply means for supplying hot air into the washing and dewatering tub 4 during the process is provided.

The hot air supply means includes a heating device 10 such as a heater and a blowing device 1 such as a blowing fan for sending air heated by the heating device 10 into the washing / dewatering tub 4.
1, a heating device 10 is fixedly arranged inside the top cover 9 at the upper part of the outer box, a blower 11 is provided on the back side of the outer case 1, and the blower 11 and the heating device 10 Are connected by a blower duct 12, and a warm air discharge duct 22 connected to the heating device 10 faces the upper opening of the washing and dewatering tub 4.

During the drying process, the air generated by the blower 11 is heated by the heating device 10 and supplied from above into the washing and dewatering tub 4 through the hot air discharge duct 22. Dry the clothing by contacting it with warm air.

In a washing and drying machine, the washing and dewatering tub 4 is used as a drying room. Since the drying room is vertical,
The drying operation is performed in a state where the clothes put in here are accumulated on the bottom of the washing and dewatering tub 4, and the warm air is blown from above as described above. As a result, there is a problem that the drying proceeds from the surface of the garment, which is located on the upper portion of the garment, and the drying speed is reduced when the surface is dried.

Therefore, during the drying process, the washing and dewatering tub 4
A step of stirring the clothes on the rotor 5 by rotating the rotor 5 provided at the bottom of the garment, whereby the upper and lower positions of the clothes are interchanged, so that the non-dry surface is exposed to the surface and dried. I try to increase the speed.

[0007]

In order to change the clothes by rotating the rotor 5 during the drying process, it is necessary to rotate the rotor 5 at a large rotation angle. For this reason, entanglement may occur depending on the clothing, for example, when the drying operation proceeds as it is for clothing entangled in a dumpling shape,
Drying of the entangled portion may be delayed, and the drying operation may be terminated while only a part of the entangled portion is wet and uneven, or wrinkles at the entangled portion may be increased.

Further, when the washing and dewatering tub 4 is rotated between the stirring processes in the drying process, warm air is uniformly applied to the clothes, and the wind generated by the rotation of the washing and dewatering tub 4 is further increased. As a result, the amount of air blows up, thereby increasing the drying speed. However, if the imbalance of the clothes due to the entanglement increases, the noise during the drying operation by rotating the washing and dewatering tub 4 also increases.

SUMMARY OF THE INVENTION It is an object of the present invention to eliminate the disadvantages of the prior art, reduce the entanglement of clothes in the drying process, and prevent the drying of the entangled portion from delaying and wrinkling.
Another object of the present invention is to provide a drying operation method of a washing / drying machine capable of suppressing generation of noise due to imbalance during rotation of the washing and dewatering tub.

[0010]

In order to achieve the above object, the present invention firstly comprises an outer box, an outer tank supported in the outer box, and a rotating blade at an inner bottom portion. A washing and dewatering tub rotatably disposed in the washing and dewatering tub, and a hot air supply means for supplying warm air into the washing and dewatering tub during a drying process. In a washing and drying machine provided with a stirring process of stirring with a rotating blade therein, the entanglement of the clothes during the drying process is detected, and when the entanglement of the clothes is detected, the rotation of the rotating blade performed in the stirring process during the drying process is performed. The rotating blades are rotated in a pattern in which the rotation angle is reduced or the number of inversions is increased as compared with the rotation pattern, or a pattern in which the two are combined.

As a result, the rotating blades rotate at a small rotation angle or rotate in small increments, so that the clothes on the rotating blades are loosened, and warm air hits all parts of the clothes uniformly, and the entangled portions are dried. Delay or wrinkles can be prevented.

Second, an outer box, an outer tub supported in the outer box, a washing and dewatering tub having rotatable blades on the inner bottom and rotatably disposed in the outer tub, and a drying process. A washing and drying machine provided with hot air supply means for supplying hot air to the washing and dewatering tub at times, and provided with a stirring process for stirring the clothes put into the washing and dewatering tub with the rotating blades during the drying process. When the bias of the clothes in the washing and dewatering tub is detected during the drying process, the rotation angle is reduced or the number of reversals is increased as compared with the rotation pattern of the rotating blades performed in the stirring process during the drying process. The rotor was rotated in either one of these patterns or in a combination of the two.

As a result, the rotating blades rotate at a small rotation angle or rotate in small increments, so that the clothes on the rotating blades are loosened, the bias of the clothes is corrected, and the rotating and rotating tub is rotated. Generation of noise due to balance is also suppressed.

[0014]

Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is a flowchart of a drying operation showing a drying operation method of a washing and drying machine according to an embodiment of the present invention. The washing and drying machine in which the drying operation time setting method of the present invention is performed will be described with reference to a vertical sectional side view of FIG. . Since the outline of the structure of the washer / dryer has already been described,
Although a detailed description is omitted here, an outer tub 2 is swingably disposed via an anti-vibration device 3 in an outer box 1 placed on a bottom frame 20. A washing and dewatering tub 4 provided with rotating blades 5 is rotatably disposed, and a motor 6 is provided below the outer tub 2.
And a mechanism section 7 such as a clutch switching mechanism, and a motor pulley 14 of the motor 6 and a main shaft pulley 15 of the mechanism section 7.
And are connected by a belt 16.

An opening on the upper surface of the washing and dewatering tub 4 is covered with a lid 8.
With a top cover 9 equipped with a drain valve 18
Was opened at the bottom of the outer tub 2. 1 in the figure
Reference numeral 9 denotes a ring-shaped balancer attached to the periphery of the upper edge of the washing and dewatering tub 4 to reduce the swing of the washing and dewatering tub 4 in the dewatering step.

In the washing / drying machine having such a configuration, a non-contact displacement sensor 23 using, for example, a laser or the like is disposed outside the outer tub 2 as cloth entanglement detecting means for detecting entanglement of clothes. The cloth entanglement detecting means is not limited to the one that detects the displacement of the outer tub 2, and a displacement sensor that detects the displacement of the hanging bar of the vibration isolator 3 is provided on the hanging bar. When the clothes are entangled, the number of inertia rotation pulses differs between the right rotation and the left rotation of the rotation of the rotary wing 5. Measure the temperature of the exhaust gas discharged from the
It is conceivable to detect cloth entanglement from the change in the drying temperature.

The hot air supply means includes a heating device 10 using a heater or the like and a blowing device 11 using a blowing fan.
The heating device 10 and a blowing duct 12 for connecting the blowing device 11 are provided. The blowing device 11 is provided as an example on the back of the outer box 1, and the heater case 21 in which the heating device 10 is stored is covered with the top cover 9. It is located on its upper surface at the rear position. The heater case 21 is provided with a hot air discharge duct 22 integrally with the heater case 21 on the discharge side, and an end of the hot air discharge duct 22 is opened above the washing and dewatering tub 4.

Next, the operation of the drying process will be described with reference to the flowchart of FIG. In the drying step, clothes to be dried are put into the washing and dewatering tub 4 [step (a)], and a power switch, a drying course switch, and a start switch are turned on [step (b)]. In this case, when shifting from the dehydration step of the washing operation to the drying step, the clothes are already put in the washing and dewatering tub 4, and when the fully automatic course is selected, the drying step is automatically started. Move to

When the drying process starts (step (c)), the air blower 11 and the heating device 10 operate to send air from the blower 11 to the heater case 21 through the air duct 12, and the air is sent to the heater case 21. Heating is performed by the heating device 10 disposed in the heater 21 and supplied to the inside of the washing and dewatering tub 4 through the warm-air discharge port at the distal end through the warm-air discharge duct 22 to start the operation of drying the clothes.

In the drying process, the rotor 5 is rotated 360 degrees, and the operation of turning off the rotor for 0.8 seconds is reciprocated two times, so that the rotor 5 is largely rotated. Replace it. In addition, the rotor 5 is rotated 180 degrees, and the operation of turning off for 0.8 seconds is performed three times reciprocatingly to loosen the clothes, thereby causing each part of the clothes to be heated by the hot air supplied from above the washing and dewatering tub 4. Are uniformly contacted to prevent uneven drying.

Thereafter, the washing and dewatering tub 4 is set in the range of 100 to 300.
It rotates intermittently for 11 minutes at a low speed of rpm to more evenly apply warm air to the clothes, and increases the amount of air blown by the wind generated by the rotation of the washing and dewatering tub 4 to increase the drying efficiency. After that, perform a natural stop for 30 seconds,
The rotation of the rotor is performed again. By repeating these operations, the clothes in the washing and dewatering tub 4 are agitated and brought into contact with hot air for drying.

When the set final drying end notice time is reached [step (f)], the drying operation is ended [step (g)].

If the clothes are entangled and entangled in the cloth during the drying process, the outer tub 2 and the washing and dewatering tub 4 are vibrated and displaced, and the outer tub 2 and the outer box 1 are displaced. Since the distance from the inner side fluctuates, if the displacement exceeds a certain value, it is detected by the non-contact displacement sensor 23 using, for example, a laser as cloth entanglement detecting means, and it is determined that cloth entanglement has occurred [step (d)]. , The rotor 5 in the next stirring process
Is not the normal large rotation operation pattern shown in [Step (c)], but the rotating blade 5 is rotated in the loosening stroke operation pattern shown in [Step (e)].

That is, by turning off the rotary blade 5 for 10 reciprocations at a small rotation angle of about 180 degrees with an off time of 0.8 seconds, the rotary blade 5 is inverted little by little to loosen entangled clothing. As a result, it is possible to prevent the drying of the entangled portion from being delayed, and to prevent the drying from being completed in a partially uneven wet state. Then, when the final drying end notice time that has been set is reached [step (h)], the drying operation is ended [step (g)].

When shifting to the unraveling step, not only when the cloth entanglement is detected by the cloth entanglement means as described above, but also when the washing and spin-drying tub 4 is being rotated during the drying step, for example, the clothes are entangled. And the safety switch is activated by detecting the displacement of the outer tub 2 by the unbalance detection switch. In this case as well, the rotating blade 5 is rotated in the operation pattern of the loosening stroke shown in [Step (e)]. Let loosen the entangled clothing. Therefore, generation of a loud noise during rotation of the washing and dewatering tub 4 can be prevented.

In the above embodiment, the case where the non-contact displacement sensor 23 using a laser or the like is used as the cloth entanglement detecting means has been described. However, the present invention is not limited to this. In the case where a displacement sensor for detecting the displacement of the hanging rod of No. 3 is provided on the hanging rod, or when the clothes are entangled, the rotation of the rotary wing 5 is inertial rotation between right rotation and left rotation. Since the number of pulses is different, it is also possible to detect the change in the number of pulses, measure the temperature of the exhaust gas discharged from the washing and spin-drying tub 4, and detect the cloth entanglement from the change in the drying temperature. .

[0027]

As described above, the drying operation method of the washing and drying machine according to the present invention comprises, first, an outer box, an outer tub supported in the outer box, and a rotating blade at the inner bottom. A washing and dewatering tub rotatably disposed in an outer tub, and a warm air supply means for supplying warm air to the washing and dewatering tub during a drying process; In a washing / drying machine provided with a stirring process of stirring with a rotating blade during the drying process, the entanglement of the clothes during the drying process is detected, and when the entanglement of the clothes is detected, the washing is performed in the stirring process during the drying process. The rotating blade is rotated in a pattern of either a smaller rotating angle or a larger number of inversions as compared with the rotating pattern of the rotating blade, or a combination of the two.

As a result, the rotating blades rotate at a small rotation angle or rotate in small increments, so that the clothes on the rotating blades are loosened, and warm air hits all parts of the clothes uniformly, and the entangled portions are dried. Delay or wrinkles can be prevented.

Second, an outer box, an outer tub supported in the outer box, a washing and dewatering tub having rotatable blades on the inner bottom and rotatably disposed in the outer tub, A washing and drying machine provided with hot air supply means for supplying hot air to the washing and dewatering tub at times, and provided with a stirring process for stirring the clothes put into the washing and dewatering tub with the rotating blades during the drying process. When the bias of the clothes in the washing and dewatering tub is detected during the drying process, the rotation angle is reduced or the number of reversals is increased as compared with the rotation pattern of the rotating blades performed in the stirring process during the drying process. The rotor was rotated in either one of these patterns or in a combination of the two.

As a result, the rotating blades rotate at a small rotation angle or rotate little by little, so that the clothes on the rotating blades are loosened and the bias of the clothes is corrected. The generation of noise is also suppressed.

[Brief description of the drawings]

FIG. 1 is a flowchart of a drying process showing an embodiment of a drying operation method of a washing and drying machine of the present invention.

FIG. 2 is a vertical sectional side view of a washing and drying machine in which a drying operation method of the present invention is performed.

[Explanation of symbols]

1 ... outer box, 2 ... outer tank, 3 ...
Vibration isolator, 4 ... Washing and dewatering tub, 5 ... Rotor blade,
6 ... motor, 7 ... mechanism, 8 ... lid,
9 ... top cover, 9a ... opening,
10 heating device, 11 blower device, 12
Blast duct, 13 ... operation unit, 14 ... motor pulley, 15 ... spindle pulley, 16 ... belt,
17 ... drain pipe, 18 ... drain valve, 19 ...
Balancer, 20: bottom frame, 21: heater case,
22 hot air discharge duct 23 non-contact displacement sensor

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Takashi Koyama 1-1-1, Yamate, Funabashi-shi, Chiba Prefecture Inside Nippon Steel Corporation (72) Inventor Hideyo Uchida 1-1-1, Yamate, Funabashi-shi, Chiba Prefecture Inside Nippon Steel Corporation (72) Inventor Katsunori Ishii 1-1-1, Yamate, Funabashi City, Chiba Prefecture Inside Nippon Steel Corporation (72) Inventor Mamoru Katano 1-1-1, Yamate, Funabashi City, Chiba Prefecture Japan Inside Steel Corporation (72) Inventor Kunio Inose 1-1-1, Yamate, Funabashi-shi, Chiba F-term (reference) 3B155 BA03 BA09 BA16 CA06 CB07 KA01 KB07 KB27 LA02 LA11 LB16 LB19 LC07 LC08 LC14 LC28 MA01 MA06

Claims (2)

[Claims] An outer box, an outer tank supported in the outer box,
A washing and dewatering tub provided with rotating blades at an inner bottom portion and rotatably disposed in the outer tub; and a hot air supply means for supplying warm air to the washing and dewatering tub during a drying process; In a washing / drying machine provided with a stirring step of stirring the clothes put in the dehydration tub with the rotating blades during the drying step, when the entanglement of the clothes during the drying step is detected, and the entanglement of the clothes is detected,
Rotating the rotor in a pattern that reduces the rotation angle or increases the number of reversals compared to the rotation pattern of the rotor performed in the stirring process during the drying process, or a pattern that combines the two. A drying operation method for a washer / dryer, comprising: 2. An outer box, an outer tank supported in the outer box,
A washing and dewatering tub provided with rotating blades at an inner bottom portion and rotatably disposed in the outer tub; and a hot air supply means for supplying warm air to the washing and dewatering tub during a drying process; In a washing / drying machine provided with a stirring process of stirring the clothes put in the dewatering tub with the rotating blades during the drying process, when the bias of the clothes in the washing and dewatering tub is detected during the drying process, the drying is performed. Rotating the rotor in a pattern that reduces the rotation angle or increases the number of reversals compared to the rotation pattern of the rotor performed in the stirring process during the stroke, or a pattern that combines the two is considered. The drying operation method of a washing and drying machine, which is a feature.