JP2012070808A - Washing/drying machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a washing/drying machine capable of shortening a drying time by improving movement of laundry in a rotary drum or an inner tub when drying, which allows a drying operation at lower electric power consumption.SOLUTION: A washing/drying machine comprising an outer tub the inside of which becomes a drying chamber when drying, an inner tub rotatably disposed in the outer tub for housing laundry, a motor for driving the inner tub, and a chassis for supporting the outer tub has main lifters provided on the inside surface of the inner tub from the front side to the back side for scooping up the laundry along with the rotation of the inner tub, and auxiliary lifters provided between the main lifters on the inside surface of the inner tub. The height of the main lifter on the front side is lower than that on the back side, and the height of the main lifter on the back side is higher than that of the back side of the auxiliary lifter.

Description

  The present invention relates to a washing / drying machine that performs washing and drying while rotating an inner tub containing clothes.

  Drying clothes using a dryer or a washing and drying machine that can perform washing to drying continuously creates high-temperature and low-humidity air with a blower fan and heat source, and blows it into the washing tub to raise the temperature of the clothes. This is done by evaporating moisture from the clothing and discharging the evaporated moisture out of the machine. For this reason, in order to dry the laundry efficiently, it is desirable to improve the contact between the laundry and the warm air. There exist patent documents 1-3 as a prior art regarding this. On the other hand, there is Patent Document 4 as a conventional technique for reducing washing unevenness.

JP 2010-46323 A JP 2009-22688 A Japanese Patent No. 4387812 JP 2005-334565 A

  As the laundry is pushed into the rotating drum or inner tub, the moisture content of the clothes decreases as the drying progresses, and it apparently expands and spreads in the rotating drum or inner tub. The movement of the laundry with respect to the rotating drum or the inner tub becomes worse. For this reason, it takes a long time to completely dry the laundry, and the power consumption increases. On the other hand, in the conventional technology in which the stirring rotating body is provided at the bottom of the rotating drum, the occupied volume in the rotating drum is large and the configuration is complicated. In addition, in the conventional technology including a baffle protruding in the drum rotation axis direction and an auxiliary baffle provided on the bottom surface of the drum, the auxiliary baffle is connected to the baffle. Effects such as stirring of objects cannot be obtained. Further, the conventional technique in which the auxiliary baffle is provided on the bottom side of the rotating drum has a shape that reduces vibration and noise during dehydration, and has not reached an optimal shape for stirring the laundry during the drying operation. Even in the prior art in which an auxiliary lifter is provided in order to reduce washing unevenness of the laundry, the optimum shape for stirring the laundry during the drying operation has not been achieved.

  Therefore, the present invention provides a washing / drying machine capable of improving the movement of the laundry in the rotating drum or the inner tub during drying, shortening the drying time, and performing a drying operation capable of reducing power consumption. Objective.

  An outer tub whose inside becomes a drying chamber at the time of drying, an inner tub that is rotatably arranged in the outer tub to store laundry, a motor that drives the inner tub, and a housing that supports the outer tub In the washing and drying machine, a main lifter provided on the inner side surface of the inner tub from the front side to the rear side, and sweeping the laundry along with the rotation of the inner tub, and the inner side surface of the inner tub, An auxiliary lifter provided between the lifters, wherein the main lifter has a lower height on the front side than a height on the back side, and a height on the back side of the main lifter is the auxiliary lifter. The height of the lifter was made higher than that of the rear side.

  According to the present invention, since the contact between the laundry and the warm air is improved throughout the drying process, it is possible to provide a laundry dryer that can shorten the drying time and reduce the power consumption.

1 is a perspective view of a washing / drying machine according to a first embodiment of the present invention. The partial sectional view which specified the inner surface of the rotating drum according to the first embodiment of the present invention is shown. Sectional drawing of the washing-drying machine at the time of the heater heating in the first half of the drying process according to the first embodiment of the present invention is shown. It is an image figure which concerns on 1st Example of this invention and shows an effect | action of the auxiliary lifter at the time of washing. It is an image figure which concerns on the 1st Example of this invention, and shows the effect | action of the auxiliary lifter at the time of high speed dehydration. The state which concerns on 1st Example of this invention and shows the mode of the extraction of the water | moisture content from the laundry by the auxiliary lifter in the first half of a drying process, and a wrinkle extension. Sectional drawing of the washing-drying machine at the time of the ventilation exhaust_gas | exhaustion of the latter half of a drying process which concerns on 1st Example of this invention is shown. The state which concerns on the 1st Example of this invention and shows the state of the rolling stirring around the auxiliary lifter of the laundry accompanying the drum reversal at the time of drying is shown. The perspective view of an auxiliary lifter according to the first embodiment of the present invention is shown. Sectional drawing of an auxiliary lifter is shown in the first embodiment of the present invention. The block diagram of the control apparatus of a washing / drying machine according to the first embodiment of the present invention is shown. The flowchart of the control processing program of a washing-drying machine which concerns on 1st Example of this invention is shown. It is a figure which concerns on the 1st Example of this invention and showed the relationship between the height of an auxiliary lifter and the reduction effect of power consumption. The perspective view of an auxiliary lifter according to the second embodiment of the present invention is shown. The perspective view of an auxiliary lifter according to the third embodiment of the present invention is shown.

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

  FIG. 1 is a perspective view of a washing / drying machine according to a first embodiment of the present invention. On the upper part of the base 1, a casing 2 configured by combining a steel plate and a resin molded product is placed. A door 3 and a front cover 22 for taking in and out the laundry 30 are provided on the front surface of the housing 2 and a back cover 23 is provided on the back surface.

  FIG. 2 shows a main lifter (washing lifter) 33 and an auxiliary lifter (auxiliary protrusion) that are provided on the inner surface of the rotating drum 29 that is an inner tub and have a length extending in the depth direction from the front side to the back side. 5 is a partial cross-sectional view focusing on the arrangement of 52. FIG. Three main lifters 33 are attached while being shifted by 120 degrees about the drive shaft of the rotating drum. Further, three auxiliary lifters 52 are attached at positions shifted by 60 degrees from the main lifter 33. In other words, a total of six main lifters 33 and auxiliary lifters 52 are attached to the rotary drum 29 at positions shifted by 60 degrees alternately.

  Further, the height H2 of the auxiliary lifter 52 is made lower than the height H1 of the main lifter 33. In this embodiment, the height H2 of the auxiliary lifter 52 is 15 mm with respect to the maximum height Ha1 = 45 mm of the main lifter 33. It is said.

  In the drum type washing / drying machine in which the rotary drum 29 is inclined and arranged in the depth direction, the main lifter 33 is high on the back side where the washing water and the laundry 30 accumulate more during the washing operation, as shown in FIG. It is preferable to make it low on the near side. The main lifter 33 plays a role of stirring the washing water itself in addition to the laundry 30 on the back side, and on the front side, since the stirring of the laundry can be small, it is lower than the back side, It does not interfere with the taking in and out of the object 30. In addition, by providing the main lifter 33 with a gentle inclination from the back side to the front side, an action of transferring the back side laundry 30 to the front side according to the rotation of the rotary drum 29 can be obtained.

  On the other hand, the auxiliary lifter 52 mainly aims to stir the laundry 30 that has become lighter in the drying process. Therefore, in order to obtain a stirring effect over the entire depth direction of the rotary drum 29, It is preferable that the height is lower than the rear side height Ha1 and substantially the same level as the near side height Hb1 in the vicinity of the door side. The auxiliary lifter 52 has substantially the same height on the near side and on the far side.

  FIG. 3 relates to the first embodiment of the present invention and shows a cross-sectional view of a washing / drying machine. In addition, the air flow in the figure shows the flow during heating of the heater in the first half of the drying process. First, the schematic structure of the washing / drying machine will be described.

  Inside the housing 2, there is provided an outer tub 20 whose inside becomes a drying chamber during drying, and the outer tub 20 is supported by a plurality of suspensions 21 at the bottom. The rotating drum 29 rotatably disposed in the outer tub 20 accommodates the laundry 30 that has been opened by opening the door 3, and the laundry 30 during dehydration is disposed on the outer periphery of the opening of the rotating drum 29. A fluid balancer 31 is provided for reducing vibration due to unbalance. In addition, a plurality of main lifters 33 are provided inside the rotary drum 29 to scrape the laundry 30 along with the rotation. The rotating drum 29 is directly connected to a drum driving motor 36 via a main shaft 35 connected to a rotating drum metal flange 34. A rubber packing 38 made of an elastic body is attached to the opening of the outer tub 20. The packing 38 serves to maintain the watertightness between the outer tub 20 and the door 3. This prevents water leakage during washing, rinsing and dehydration.

  The rotating drum 29 has a large number of small holes (not shown) for centrifugal dehydration and ventilation on the side wall. A drain port 37 opened in the bottom wall of the outer tub 20 is connected to the drain hose 9 via the drain valve 8. The overflow hose 17 is attached to the blower duct 40 on the rear surface of the drum, and is joined with the hose from the drainage port 37 before the drainage valve 8. That is, when the drain valve 8 is opened, the drain hose 9 is communicated.

  The drying device 6 including the air duct 40 that guides air to the laundry 30 in the rotating drum 29, the fan 49 that serves as the air blowing means, and the heater 50 is fixed to the housing 2 (not shown) apart from the outer tub 20. . The air duct 40 and the ventilation port 32 are connected substantially horizontally with a bellows 4 having a flexible structure, and the outlet of the heater 50 and the blowing nozzle 11 are located between the uppermost surface and the center of the outer tub 20 and from the center of the outer tub 20 to the front. A flexible bellows is connected to the outer tank 20 at a position so as to absorb vibration of the outer tank 20. Temperature sensors (not shown) are provided at the outlet 37 and the intake and outlet of the fan 49.

  A washing process of the drum type washing and drying machine configured as described above will be described. In the washing process, the laundry is put into the rotary drum 29, water is supplied with the drain valve 8 closed, the washing water is stored in the outer tub 20, and the rotary drum 29 is rotated to wash the laundry 30. In the case of a drum-type washing / drying machine, along with the rotation of the rotary drum 29, the laundry 30 is lifted to the top of the drum by the main lifter 33, and then washed by dropping to the bottom of the rotary drum 29 by gravity. In the present invention, since the auxiliary lifter 52 provided between the main lifters 33 is lower in height than the main lifter 33, the lifting effect of the laundry 30 by the auxiliary lifters 52 itself is small. However, the laundry 30 intertwined with the laundry 30 held and lifted by the main lifter 33 can be lifted while being supported without falling off the rotation of the rotary drum 29. As a result, more laundry 30 can be washed with a large drop, and the cleaning power can be increased. FIG. 4 shows how the laundry 30 is lifted by the auxiliary lifter 52 as the rotating drum 29 rotates.

  Next, the dehydration process will be described. In the dehydration step, the drain valve 8 is opened to drain the washing water in the outer tub 20, and the rotary drum 29 is rotated to perform centrifugal dehydration. In order to dehydrate at high speed, it is preferable that the laundry 30 is distributed and arranged in the rotating drum 29 as uniformly as possible in a well-balanced manner. For this reason, at the initial stage of dewatering, the speed is gradually increased from a low speed, and the laundry 30 is gradually pressed against the inner wall of the rotary drum 29 while appropriately rolling in the rotary drum 29. At this time, the auxiliary lifter 52 acts as a step when the laundry 30 rolls, can activate the movement of the laundry 30, and can promote dispersion. Further, the auxiliary lifter 52 plays a role of catching the laundry 30 until the rotating drum 29 reaches a high speed and the laundry 30 is held on the inner wall of the rotating drum 29 by centrifugal force. It is possible to prevent the laundry 30 from slipping against the rotation, thereby preventing the laundry 30 from being biased. During high speed dewatering, the laundry 30 is pressed against the inner wall of the rotating drum 29 by centrifugal force. In the present invention, since the auxiliary lifter 52 is provided completely separately from the main lifter 33, the laundry 30 straddling the top of the auxiliary lifter 52 and pressed against the inner walls of the rotary drum 29 on both sides thereof is supported by the auxiliary lifter 52. Due to the squeezing effect at the top of the lifter 52, moisture can be extracted and the dehydration rate can be improved. Further, a drainage hole for draining the squeezed water is provided at the top of the auxiliary lifter 52, and the squeezed water can be quickly drained out of the rotating drum 29. FIG. 5 shows the appearance of squeezing with the auxiliary lifter 52 during dehydration.

  Hereinafter, the drying process will be described. First, in the first half of the drying step, as shown in FIG. 3, air heated by the heater 50 is heated into the rotary drum 29 through the blow nozzle 11 to exchange heat with the laundry 30 and washing. Water is evaporated from the object 30. The air containing the evaporated water and becoming highly humid is led to the fan suction port through the blower duct 40, heated again by the heater 50 provided at the fan outlet, and blown into the rotary drum 29. At this time, the humid air at the outlet of the rotary drum 29 exchanges heat with the outer tub 20 and the air duct 40 when passing through the outer tub 20 and the air duct 40, and the moisture corresponding to the decrease in the saturated vapor pressure Condensation is performed on the outer tank 20 and the wall surface of the air duct 40. FIG. 6 shows how water is squeezed from the laundry 30 and stretched by the auxiliary lifter 52 in the first half of the drying process. The auxiliary lifter 52 can squeeze out water from the laundry 30 in contact with the top of the auxiliary lifter 52 when the laundry 30 is pressed against the rotary drum 29 or the inner tub by warm air. By being stretched across the top of the lifter 52, wrinkles can be stretched and the effective contact area between the laundry 30 and the warm air can be increased. For this reason, the warm air blowing speed is preferably about 300 km / h when wrinkle stretching is emphasized.

  In the latter half of the drying process, the intake valve 13 and the drain valve 8 are opened. In FIG. 7, the flow of the air in the washing dryer at the time of the ventilation exhaust_gas | exhaustion of the latter half of a drying process is shown. In the present embodiment, there is provided an air intake means that guides ambient air into the air passage through the housing 2. Specifically, by opening the intake valve 13 on the fan suction side, ambient air outside the blower duct 40 in the housing 2 is sucked and blown into the rotary drum 29. The air pushed out from the rotary drum 29 passes through the drain hose 9 from the drain port 37, breaks the water seal of the drain trap 10, and is discharged to the drain port 39. In the case of a general drain trap, since the water seal height is about 50 to 80 mm, the pressure on the drain hose 9 side is required to be about 1000 Pa or more to break the water seal. Moreover, in order to suppress the odor from the drain outlet 39, it is necessary to ensure a high pressure (a pressure higher than a predetermined pressure) even after the water seal is broken. The fan 49 is controlled. The exhaust from the rotary drum 29 is exhausted through the connection hose from the drain port 37 to the drain valve 8 and the overflow hose 17. On the other hand, since the intake air led mainly into the housing 2 from the bottom of the housing 2 passes through the periphery of the drum driving motor 36 and the fan motor 51 between the intake port 18 at the top of the housing 2, It becomes high temperature and is taken into the air passage from the intake valve 13. For this reason, normally, it is not necessary to energize the heater 50 provided at the fan outlet. As with the main lifter 33, the auxiliary lifter 52 can lift the laundry 30 that has become lighter and lighter as the rotary lift 29 or the inner tub rotates and then drop the laundry 30 together with the agitation of the laundry 30. The contact between the warm air and the laundry 30 can be improved. Further, when the rotating drum 29 or the inner tub is reversed, the auxiliary lifter 52 can be rotated around the auxiliary lifter 52 when the laundry 30 gets over the auxiliary lifter 52 as a step. Contact with the wind can be encouraged. Due to these actions, drying unevenness can be reduced by the auxiliary lifter 52. FIG. 8 shows a state of rolling and stirring around the auxiliary lifter 52 of the laundry 30 accompanying the reversal of the rotating drum 29 during drying.

  After drying is completed, the pressure on the drain hose 9 side is kept higher than the pressure on the drain port 39 side, the rotational speed of the fan 49 is lowered to a pressure level that does not break the water seal, the water supply solenoid valve 28 is opened, and the drain trap The water sealing of 10 is recovered and the drying process is completed.

  In this way, after the drying is completed, water is supplied to the drainage port 37 via the drainage hose 9 while keeping the pressure on the drainage hose 9 side at a predetermined level or more, thereby suppressing the odor from the drainage port 39 and the drainage trap 10. The water seal can be restored.

  The drain trap 10 may be recovered at the end of the drying operation (for exhaust of the drain hose) or after the drying operation is finished as long as the pressure on the drain hose 9 side is kept high.

  FIG. 9 is an enlarged perspective view of the auxiliary lifter 52 according to the present invention, and FIG. 10 shows a cross-sectional shape of the auxiliary lifter 52 according to the present invention. The width of the bottom surface portion of the auxiliary lifter 52 is a size that fits between the circumferential pitches P <b> 1 of the plurality of dewatering holes 53 formed in the inner surface of the rotary drum 29. That is, by attaching the auxiliary lifter 52, the number of dewatering holes 53 is not extremely reduced. The length is the length over the depth of the rotating drum 29, and the laundry 30 is stirred over the entire depth of the rotating drum 29. The shape in the height direction is a shape (substantially trapezoidal) that is squeezed toward the top of the head so that moisture can be efficiently squeezed, and a dewatering hole 53 is provided in the top of the head. The dewatering hole 53 penetrates the auxiliary lifter 52 in the height direction from the top to the bottom and communicates in the vicinity of the bottom. By setting it as such a shape, the water | moisture content squeezed by the top part can be discharged | emitted out of the rotating drum 29 efficiently. Furthermore, since the top of the head does not have an acute angle, the laundry 30 is not damaged.

  FIG. 11 is a block diagram of the control device 41 of the washing / drying machine. A microcomputer 26 is connected to the operation button input circuit 25, the water level sensor 44, and the temperature sensor 45 connected to each switch 24, 24a, 24b, and various information signals in the user's button operation, washing process, and drying process. Receive. The output from the microcomputer 26 is connected to the drive circuit 5 and connected to the water supply electromagnetic valve 28, the drain valve 8, the drum drive motor 36, the fan 61, the heater 62, the intake valve 13, and the like, and these are opened and closed, rotated, Control energization. Further, it is connected to a 7-segment light-emitting diode display 7, a light-emitting diode 15, and a buzzer 19 for informing the user of the operating state of the washing and drying machine.

  The microcomputer 26 is activated when the power switch 47 is pressed and the power is turned on, and executes a basic control processing program for washing and drying as shown in FIG.

Step S101
Check the status of the washer / dryer and make initial settings.

Step S102
The display 7 of the operation panel 48 is turned on, and a washing / drying course is set according to an instruction input from the operation button switch 24b. When no instruction is input, the standard washing / drying course or the previous washing / drying course is automatically set. For example, when an instruction is input to the operation button switch 24a, a high finishing course for drying is set.

Step S103
The process branches after monitoring the instruction input from the start switch 24 of the operation panel 48.

Step S104
Perform the laundry. Laundry is performed in the order of washing, intermediate dehydration, rinsing, and final dehydration. Since this is the same as a normal drum-type washing and drying machine, a detailed description thereof is omitted.

Step S105
The process branches after confirming whether the washing / drying course is set. When only the washing course is set, the driving is ended.

Step S106
When a washing / drying course is set, hot air dehydration is performed. In the hot air dehydration, the fan 49 is operated at a low speed, the heater 50 is energized, and hot air is blown into the rotary drum 29 to raise the temperature of the clothes. At the same time, the rotating drum 29 is rotated at high speed to effectively dehydrate moisture from the warmed clothes (the viscosity of the water decreases as the temperature rises, so that it can be efficiently dehydrated). In the present embodiment, the rotation speed of the fan 49 is set to about 11000 rotations per minute. This is to prevent the allowable current value (15 A) from being exceeded.

Step S107
Dry operation 1 is executed. The fan 49 rotates at low speed, the heater 50 is energized, repeats forward and reverse rotation of the rotating drum 29, and blows hot warm air to the laundry 30 while changing the position of the laundry 30 in the rotating drum 29. The temperature of the whole laundry 30 rises and moisture evaporates from the clothes. When hot air is pressed against the rotating drum 29 or the inner tub by the wind pressure, water can be squeezed out from the laundry 30 contacting the top of the auxiliary lifter 52 and the top of the auxiliary lifter 52 Wrinkles can be stretched by being stretched between

Step S108
The process branches after confirming whether the elapsed time from the start of drying has reached the specified time.

Step S109
When the specified time has elapsed from the start of drying, or when the difference between the intermediate temperature and the initial temperature is greater than the specified temperature, the dryness of the laundry 30 (= the mass of the dry cloth / the mass of the compress) is 0.90. It is determined that the heater 50 is turned off, the intake valve 13 is opened, the fan 49 is rotated at a high speed, and the moisture of the laundry 30 is discharged from the drain hose 9 to the drain outlet 37. As with the main lifter 33, the laundry 30 that has been lightly dried can be lifted and dropped as the rotary drum 29 or the inner tub rotates, and the laundry 30 is stirred together with warm air and laundry. The contact of the object 30 can be improved. Further, when the rotating drum 29 or the inner tub is reversed, the auxiliary lifter 52 can be rotated around the auxiliary lifter 52 when the laundry 30 gets over the auxiliary lifter 52 as a step, whereby the laundry 30 is stirred and the laundry 30 and the drum internal temperature are rotated. Contact with the wind can be encouraged.

Step S110
The outer tank lower drain temperature T1a and the outside air temperature T2a are measured (setting of initial temperature).

Step S111
The process branches after confirming whether the elapsed time from the start of drying has reached the specified time.

Step S112
The outer tank lower drain outlet temperature T1b and the outside air temperature T2b for the end determination are measured.

Step S113
The process branches after confirming whether the elapsed time from the start of exhausting has reached the specified time.

Step S114
The difference between the intermediate temperature and the end determination temperature of each of the outer tank lower drain outlet temperature and the outside air temperature is obtained (ΔT1 = T1a−T1b, ΔT2 = T2a−T2b), and the temperature difference (ΔT1−ΔT2) is equal to or higher than the specified temperature. Check if it is, and branch the process.

Step S115
When the specified time has elapsed since the start of exhausting, or when the difference between the intermediate temperature and the end temperature is greater than the specified temperature, the dryness of the laundry (= dry cloth mass / compress weight) is 1.0 or more. It is judged that the drying is finished, and the rotation of the fan 61 is lowered to a pressure level that does not break the water seal while keeping the pressure on the drainage hose 9 side higher than the pressure on the drainage port 39 side, and the water supply solenoid valve 28 is opened and cooled. Water is poured to recover the water seal of the drain trap 10.

Step S116
The process branches after confirming whether or not the elapsed time from opening the water supply electromagnetic valve 28 has reached a specified time.

Step S117
The process branches after confirming whether the pressure of the water level sensor 44 has reached the specified pressure.

Step S118
When a specified time has elapsed since opening the water supply electromagnetic valve 28, or when the pressure of the water level sensor 44 becomes higher than the specified pressure, it is determined that the water sealing of the drain trap 10 has been recovered, and the fan 49 is stopped. The drum driving motor 36 is stopped, the intake valve 13 is closed, the water supply electromagnetic valve 28 is closed, and the drying process is completed.

  The washing / drying machine configured as described above takes external air into the housing in order to supplement the air inside the housing 2 sucked into the fan 49, and the outer tub 20, the drum driving motor 36, Heated by exhaust heat from fan 49. About 7% of the total power consumption of the drying process can be reduced as compared with the case of directly sucking external air.

  Moreover, even if external air is sucked in, the moisture in the laundry 30 is discharged from the drain hose 9 to the drain outlet 39, so that the indoor environment is not deteriorated.

  By providing an auxiliary lifter 52 between the main lifters 33, which is the same as the drum depth length and about 30mm lower in height than the main lifter 33, to improve the stirring of the cloth, warm air for heating to the desired cloth temperature The temperature can be kept low. Since the heat dissipation loss can be reduced and the drying time to the specified dry state can be shortened, the power consumption can be reduced by about 5% compared to the case without the auxiliary lifter 52.

  FIG. 13 shows the relationship between the reduction rate of power consumption by the auxiliary lifter 52 (based on the absence of the auxiliary lifter 52) and the height of the auxiliary lifter 52 in a washing / drying machine having a rotary drum diameter of 630 mm and a main lifter height of 45 mm. Is. From the viewpoint of power consumption, the height of the auxiliary lifter 52 is optimally about 15 mm. If it is smaller than that, the rolling effect at the time of squeezing out moisture or reversing the drum is small, and if it is larger, it becomes an obstacle to the dispersion of the laundry 30 and disturbs the dispersion arrangement, and rotation. By greatly reducing the drum internal volume, a negative effect is obtained. Furthermore, since the dispersive arrangement is not smooth, it becomes difficult to achieve a balance at the start of dehydration. Therefore, the height of the auxiliary lifter 52 is set at a lower limit value of 10 mm and an optimum height of about 15 mm. The height of the auxiliary lifter 52 corresponds to about 0.3 to 0.4 times the maximum height of the main lifter 33, and corresponds to about 2% to 3% of the inner diameter of the rotary drum 29.

  FIG. 14 shows a second embodiment of the auxiliary lifter 52 according to the present invention. In the present embodiment, the height of the auxiliary lifter 52 is changed in the depth direction of the rotary drum 29. By setting it as such a structure, the wrinkle extension of the laundry 30 pressed against the auxiliary lifter 52 becomes three-dimensional, and it is possible to further reduce unevenness in drying. The tensile force applied to the laundry 30 is also three-dimensional, and the water extraction can be enhanced.

  FIG. 15 shows a third embodiment of the auxiliary lifter 52 in the present invention. In this embodiment, the auxiliary lifter 52 has a meandering shape with respect to the depth direction of the rotating drum. By adopting such a configuration, similarly to the embodiment of FIG. 14, the wrinkle stretch of the laundry 30 pressed against the auxiliary lifter 52 becomes three-dimensional, and drying unevenness can be further reduced. Furthermore, since the movement of the laundry 30 accompanying the reversal of the rotating drum 29 can be made more complicated, the stirring of the laundry 30 can be promoted.

  Needless to say, the effect of the auxiliary lifter 52 described above does not change even if the heat source is replaced with a heat pump or the like.

DESCRIPTION OF SYMBOLS 1 Base 2 Case 3 Door 4 Bellows 5 Drive circuit 6 Drying device 7 Indicator 8 Drain valve 9 Drain hose 10 Drain trap 11 Blowing nozzle 12 Circulating air 13 Intake valve 14 Internal air 15 Light emitting diode 16 External air 17 Overflow hose 18 Intake port 19 Buzzer 20 Outer tank 21 Suspension 22 Front cover 23 Rear cover 24, 24 a, 24 b Switch 25 Operation button input circuit 26 Microcomputer 27 Filter duct 28 Water supply solenoid valve 29 Rotating drum 30 Laundry 31 Fluid balancer 32 Ventilation port 33 Main lifter 34 Metal flange 35 Main shaft 36 Drum drive motor 37 Drain port 38 Packing 39 Drain port 40 Blower duct 41 Control device 42 Inlet port 43 Base 44 Water level sensor 45 Temperature sensor 46 Vibration sensor 47 Power switch 8 Operation panel 49 fan 50 heater 51 fan motor 52 assist the lifter 53 spin-drying hole

Claims (8)

  An outer tub whose inside becomes a drying chamber at the time of drying, an inner tub that is rotatably arranged in the outer tub to store laundry, a motor that drives the inner tub, and a housing that supports the outer tub In the washing and drying machine, a main lifter provided on the inner side surface of the inner tub from the front side to the rear side, and sweeping the laundry along with the rotation of the inner tub, and the inner side surface of the inner tub, An auxiliary lifter provided between the lifters, wherein the main lifter has a lower height on the front side than a height on the back side, and a height on the back side of the main lifter is the auxiliary lifter. A washing and drying machine characterized by being higher than the height of the rear side of the lifter.   An outer tub whose inside becomes a drying chamber at the time of drying, an inner tub that is rotatably arranged in the outer tub to store laundry, a motor that drives the inner tub, and a housing that supports the outer tub, A drying device having a heating means and a blowing means for blowing warm air to the inner tank, a drain hose for discharging water discharged from the outer tank, and an air passage for passing ambient air through the housing In the washer / dryer provided with the air intake means for leading into the main tank, the main lifter is provided on the inner surface of the inner tub from the near side to the rear side, and lifts the laundry as the inner tub rotates. An auxiliary lifter provided between the main lifter on an inner surface, wherein the main lifter has a height on the near side lower than a height on the back side, and the back side of the main lifter Is higher than the height of the back side of the auxiliary lifter. Washing and drying machine, characterized in that.   The washing / drying machine according to claim 1 or 2, wherein the auxiliary lifter has a height on the near side and a height on the far side.   4. The washing / drying machine according to claim 3, wherein the width of the bottom surface of the auxiliary lifter is smaller than the circumferential pitch of the plurality of dewatering holes provided on the inner surface of the inner tub.   The washing / drying machine according to claim 4, wherein the auxiliary lifter is provided with a plurality of dewatering holes penetrating in a height direction.   The washing / drying machine according to claim 3, wherein the height of the auxiliary lifter is 10 mm or more and 15 mm or less.   4. The washing / drying machine according to claim 3, wherein the height of the auxiliary lifter is not less than 0.3 times and not more than 0.4 times the maximum height of the main lifter.   The washing / drying machine according to claim 3, wherein the height of the auxiliary lifter is 2% or more and 3% or less of the inner diameter of the inner tank.

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