JP2002315997A - Drying machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To efficiently dry laundry in a short time by preventing heat radiation from a tank and suppressing the temperature lowering inside the tank in a drying machine having the tank and a hot air blowing means. SOLUTION: This drying machine comprises a casing 1, an outer tank 3 elastically suspended to the inside of the casing 1, an inner tank 4 rotatably supported to the inside of the outer tank 3, a drive means driving the inner tank 4, the hot air blowing means blowing a hot air inside the outer tank 3, and a heat insulating material 31 suppressing the heat radiation from the outer tank 3.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dryer having an outer tub and a hot air blowing means.

[0002]

2. Description of the Related Art A conventional dryer has a construction as shown in FIG. Hereinafter, the configuration will be described.

As shown in FIG. 7, a housing 51 is provided with an outer tub 53 elastically suspended by a plurality of suspensions 52 therein, and the suspension 52 absorbs vibration during dehydration. Inside the outer tub 53, an inner tub 54 for accommodating laundry and objects to be dried (hereinafter referred to as clothes) is rotatably disposed around a washing / dehydrating shaft 55 having a hollow and double structure. A rotating blade 56 for stirring the clothes is rotatably arranged at the inner bottom of the tank 54. A number of small holes (not shown) are provided on the inner peripheral wall of the inner tank 54, and a fluid balancer 57 is provided above.

A motor (driving means) 58 is attached to the bottom of the outer tub 53, and the inner tub 54 is connected to the inner tub 54 via a clutch 59 and a washing / dehydrating shaft 55 for switching the transmission of rotational force to the washing / dehydrating shaft 55 during washing or spin-drying. Alternatively, it is connected to the rotor 56. The rotary blade 56 has a substantially pot-like shape having an inclined surface that becomes higher in the outer peripheral direction on the outer peripheral portion, and forms a protruding rib for stirring,
In the drying process, the clothes are easily soared upward along the inclined surface by the centrifugal force generated by the rotation of the rotary wings 56.

[0005] The drying blower 60 blows warm air heated by the heater 61 through a telescopic upper bellows-shaped hose 62 into the inner tank 54 from the warm air outlet 63, and is provided substantially above the housing 51. The drying air blower 60 and the heater 61 constitute warm air blowing means. Circulation path 64
Is for dehumidifying wet warm air. One end is connected to a lower bellows-shaped hose 66 connected to a drain passage opening 65 of the outer tub 2, and the other end is connected to a drying blower 60.

The drain valve 67 is fixed to the bottom of the outer tank 52,
The drainage from the lower bellows-like hose 66 and the circulation path 64 is guided to the drainage valve 67 through the drainage path 68, and is drained from the drainage hose 69 to the outside of the machine. The outer tank cover 70 hermetically covers the upper surface of the outer tank 52.
The inner cover 71 is provided to be freely openable and closable so that clothes can be taken in and out.

The operation of the above configuration will be described. For drying, the drainage valve 67 is opened, the motor 58 is driven to rotate the rotary wings 56, and a centrifugal force is applied to the garment so that the garment is splashed out. Then the rotor 5
On the inclined surface 6, a force for lifting the garment upward works (component force of centrifugal force), and the garment is agitated. By repeating the stirring, the air is blown by the drying blower 60 and the heat generated by the heater 61, and the inner tank 5 is passed through the upper bellows-shaped hose 62.
4 Send warm air into the room. The hot air, after depriving the clothes of moisture, exits from the inner tank 54 to the inside of the outer tank 53, passes through the lower bellows-like hose 66, and reaches the circulation path 64.

[0008] Warm air containing moisture by depriving clothes of moisture,
When the water passes through the inner wall of the outer tub 53 and the inside of the circulation path 64, dew condensation of water occurs therein, and the moist warm air is dehumidified and returns to the drying blower 60. By circulating the warm air in the circulation path 64, the clothes in the inner tank 54 can be dried.

[0009]

In such a conventional construction, when the clothes are dried in the outer tub, the warm air heated by the heater is radiated from the outer tub before hitting the clothes, and the moisture of the clothes is removed. When robbing, the temperature of the hot air drops slightly, and efficiency drops. Further, since the temperature in the tank is low, the latent heat of evaporation of the moisture contained in the clothes is large, and large heat energy is required to evaporate the moisture.

An object of the present invention is to solve the above-mentioned problems, and it is an object of the present invention to suppress the heat radiated from the outer tank, and to enable efficient and quick drying.

[0011]

In order to achieve the above object, the present invention is configured such that hot air is blown into an inner tank by a hot air blowing means, and heat in the outer tank and heat in the tank are supplied to an outer tank. A heat insulating means is provided so that heat is not radiated to the outside.

[0012] Thus, the heat radiated from the outer tank is suppressed, and drying can be performed efficiently and in a short time.

[0013]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The invention according to claim 1 of the present invention is directed to a housing, an outer tank elastically suspended from the housing, and an inner tank rotatably supported in the outer tank. A driving means for driving the inner tank, and a hot air blowing means for blowing hot air into the outer tank, wherein the outer tank is provided with a heat insulating means,
By providing heat insulation material in the outer tub, when hot air heated by the heater is blown into the inner tub, heat radiation from the outer tub can be suppressed, and therefore, a decrease in the temperature of the hot air hitting the clothing can be suppressed. In addition, the temperature in the outer tub can be kept high, so that the energy supplied to the heater can be effectively used to dehydrate the clothes, and the clothes can be dried efficiently and quickly in a short time. be able to.

According to a second aspect of the present invention, in addition to the first aspect, a rotating blade rotatably supported inside the inner tank and a driving means for driving the inner tank or the rotating blade are provided. In the drying process, heat is prevented from being released to the outside of the hot air in the drying process, and the clothing is agitated by the rotating wings, so that the thermal efficiency is improved, and the clothing can be dried efficiently and in a short time.

According to a third aspect of the present invention, in accordance with the first or second aspect of the present invention, a heat insulating means is provided on a side of the outer tub where the warm air is introduced, and the warm air heated by the heater is applied to the clothing. Before hitting, the heat can be effectively supplied to the clothes by preventing the heat from being radiated from the outer tub, and the humid warm air that has exchanged heat with the clothes is cooled and dehumidified in the outer tub without heat insulation. By doing so, it is possible to improve the cooling capacity,
Clothes can be dried efficiently and in a short time.

The invention described in claim 4 is the above-mentioned claim 1-
3. The invention according to claim 3, wherein the outer tank has a double structure as the heat insulating means, and the outer tank has a double structure and an air layer is provided without newly providing a heat insulating material. The same effects as those of the inventions described in (1) to (3) are obtained. In addition, the work of providing a heat insulating material in the assembling can be omitted, and the assembling property is superior to the first to third aspects of the present invention.

The invention described in claim 5 is the above-mentioned invention.
In the invention described in Item 4, a cooling blower is provided on the side surface of the housing, and the outside air is blown to the circulation path to cool, so that the hot air that has deprived the clothes of moisture and has become humid is cooled and dehumidified. I do. It is possible to further promote the dew condensation of water in the circulation path, and to reduce the amount of water contained in the warm air when the air is blown again to the heater unit by the drying blower. Therefore, since the amount of moisture of the warm air heated by the heater and blown into the inner tank is small, more moisture can be removed when the clothing comes in contact with the clothing to remove moisture, and the clothing is efficiently and It can be dried in a short time.

According to a sixth aspect of the present invention, in the fifth aspect of the present invention, since air is blown to the non-insulating wall, the temperature in the tank can be kept high. Clothes can be dried in a small area, and the humid warm air that has deprived the clothes of moisture can be cooled and dehumidified in the heat insulation section and the circulation path, so that the cooling capacity can be improved, and the clothes can be efficiently made. It can be dried in a short time.

[0019]

Embodiments of the present invention will be described below with reference to the drawings. Components having the same configuration as the conventional example are denoted by the same reference numerals, and description thereof is omitted.

(Embodiment 1) As shown in FIG.
Is provided with an outer tub 3 elastically suspended by a plurality of suspensions 2 therein, and the suspension 2 absorbs vibration during drying. The outer tub 3 is provided with a heat insulating material 31 for suppressing the heat radiation inside the tub at the time of drying. Further, inside the outer tub 3, an inner tub 4 for accommodating clothing is disposed rotatably about a shaft 22. Also,
A number of small holes (not shown) are provided on the inner peripheral wall of the inner tank 4, and a fluid balancer 7 is provided above.

A motor (driving means) 8 is attached to the bottom of the outer tub 3 and connects the transmission of rotational force to the inner tub 4 via a shaft 22 during drying. The hot air is blown uniformly.

The drying blower 10 blows the hot air heated by the heater 11 through the telescopic upper bellows-shaped hose 12 into the inner tank 4 from the hot air outlet 13. A drying blower 10 and a heater 1
1 constitutes a hot air blowing means. The circulation path 14 performs dehumidification of wet warm air. One end of the circulation path 14 is connected to a lower bellows-shaped hose 16 connected to a drain passage opening 15 of the outer tub 2, and the other end is connected to the drying blower 10. .

The drain valve 17 is fixed to the bottom of the outer tub 2 and drains water from the lower bellows-like hose 16 and the circulation path 14 to the drain path 1.
It is configured to be guided to a drain valve 17 through 8 and drained from a drain hose 19 to the outside of the machine. The outer tank cover 20 hermetically covers the upper surface of the outer tank 2, and an inner lid 21 is provided on the outer tank cover 20 so as to be openable and closable.

The operation of the above configuration will be described. Inner lid 2
Open 1 and put the clothes in the inner tank 4 and start driving,
The motor 8 is driven to rotate the inner tub 4 via the shaft 22 to stir the clothes. While repeating this stirring, warm air is sent into the inner tank 4 through the upper bellows-like hose 12 by the air blown by the drying blower 10 and the heat generated by the heater 11. Then, the hot air comes into contact with the clothing, deprives the clothing of moisture, and then exits from the inner tub 4 to the inside of the outer tub 3.
To the circulation path 14.

At this time, the hot air is deprived of heat by the inner tub 4 and the outer tub 3, but its heat radiation is suppressed by the heat insulating material 31 provided on the outer tub 3. In addition, the heat insulating material 31 provided in the outer tank 3 can suppress a temperature drop in the inner tank 4.

When the warm air containing moisture by depriving the clothes of moisture passes through the circulation path 14, dew condensation occurs inside the circulation path, and the wet warm air is dehumidified and dried. Return to the blower 10. By circulating the warm air in the circulation path 14, the clothes in the inner tank 4 can be dried.

Therefore, the heat of the heater 11 can be efficiently applied to the clothes, and the temperature in the inner tank 4 can be kept high, so that the clothes can be dried in a region where the latent heat of evaporation of water is small. Therefore, the clothes can be dried efficiently and in a short time.

Although the present embodiment has been described with respect to a dryer in which the shaft 22 for transmitting the drive of the motor has a substantially vertical direction, the same effect can be obtained in a drum type in which the transmission shaft is horizontal. In addition, the same effect can be obtained not only in the circulation type dryer but also in the exhaust type in which the moisture of clothes is taken out and the humid air humidified is discharged from the circulation path 14 to the outside of the machine. The same effect can be obtained for a washer / dryer that performs drying.

(Embodiment 2) As shown in FIG.
Is provided with an outer tub 3 elastically suspended by a plurality of suspensions 2 therein, and the suspension 2 absorbs vibration during drying. The outer tub 3 is provided with a heat insulating material 31 for suppressing the heat radiation inside the tub at the time of drying. Further, inside the outer tub 3, an inner tub 4 for storing clothes is rotatably disposed around a washing / dehydrating shaft 5 having a hollow and double structure, and the clothes are stirred at the inner bottom of the inner tub 4. Rotating wing 6 is rotatably arranged. In addition, a number of small holes (not shown) are provided on the inner peripheral wall of the inner tank 4, and a fluid balancer 7 is provided above.

The motor (driving means) 8 is attached to the bottom of the outer tub 3, and is connected to the inner tub 4 via the clutch 9 and the washing / dehydrating shaft 5 for switching the transmission of rotational force to the washing / drying shaft 5 during drying.
Alternatively, it is connected to the rotor 6. The rotor 6 has a substantially W-shape having an inclined surface that rises in the outer peripheral direction on the outer periphery, and a protruding rib for stirring is formed. It is easy to soar upward along the surface.

The drying blower 10 blows the hot air heated by the heater 11 through the telescopic upper bellows-shaped hose 12 into the inner tank 4 from the hot air outlet 13. A drying blower 10 and a heater 1
1 constitutes a hot air blowing means. The circulation path 14 performs dehumidification of wet warm air. One end of the circulation path 14 is connected to a lower bellows-shaped hose 16 connected to a drain passage opening 15 of the outer tub 2, and the other end is connected to the drying blower 10. .

The drain valve 17 is fixed to the bottom of the outer tank 2, and drains water from the lower bellows-like hose 16 and the circulation path 14 to the drain path 1.
It is configured to be guided to a drain valve 17 through 8 and drained from a drain hose 19 to the outside of the machine. The outer tank cover 20 hermetically covers the upper surface of the outer tank 2, and an inner lid 21 is provided on the outer tank cover 20 so as to be openable and closable.

The operation of the above configuration will be described. Inner lid 2
Open 1 and put the clothes in the inner tank 4 and start driving,
The motor 8 is driven. At this time, by setting the clutch 9 of the transmission mechanism to the washing side, transmitting the power of the motor 8 to the rotating blade 6 via the washing shaft, rotating the rotating blade 6, and applying centrifugal force to the clothing, Make sure your clothes are splashed out. Then, a force for lifting the garment upward on the inclined surface 10 of the rotary wing 6 acts (a component force of centrifugal force), and the garment is stirred. While repeating this stirring, warm air is sent into the inner tank 4 through the upper bellows-like hose 12 by the air blown by the drying blower 10 and the heat generated by the heater 11. Then, the warm air comes into contact with the clothing, deprives the clothing of moisture, exits from the inner tub 4 to the inside of the outer tub 3, passes through the lower bellows-like hose 16, and reaches the circulation path 14.

At this time, the hot air is deprived of heat by the inner tub 4 and the outer tub 3, but its heat radiation is suppressed by the heat insulating material 31 provided on the outer tub 3. In addition, the heat insulating material 31 provided in the outer tank 3 can suppress a temperature drop in the inner tank 4.

When the warm air containing moisture by depriving the clothes of moisture passes through the circulation path 14, dew condensation occurs therein, and the wet warm air is dehumidified and dried. Return to the blower 10. By circulating the warm air in the circulation path 14, the clothes in the inner tank 4 can be dried.

Therefore, the heat of the heater 11 can be efficiently applied to the clothes, and the temperature in the inner tank 4 can be kept high, so that the clothes can be dried in a region where the latent heat of evaporation of water is small. Therefore, the clothes can be dried efficiently and in a short time.

Although the present embodiment has been described with respect to a dryer in which the washing / dehydrating shaft 5 for transmitting the drive of the motor has a substantially vertical direction, the same effect can be obtained also in a drum type in which the transmission shaft is horizontal. In addition, the same effect can be obtained not only in the circulation type dryer but also in the exhaust type in which the moisture of clothes is taken out and the humid air humidified is discharged from the circulation path 14 to the outside of the machine. The same effect can be obtained for a washer / dryer that performs drying.

(Embodiment 3) As shown in FIG.
1 is provided on the hot air introduction side (upper part) without being provided in the lower tank part from near the height where the rotor of the outer tank is provided. Other configurations are the same as those of the second embodiment.

The operation of the above configuration will be described. In addition,
The basic operation in the drying process is the same as the operation of the second embodiment, and the description is omitted.

The hot air blown into the inner tub 4 by the hot air blowing means is kept in the inner tub 4 until it reaches the clothes at the bottom of the inner tub 4.
Heat is taken away by the outer tub 3, but the heat insulating material 3 provided in the outer tub 3
1, the heat radiation is suppressed. Then, the hot air comes into contact with the clothing, deprives the clothing of moisture, and then exits from the inner tub 4 to the inside of the outer tub 3, where it is once cooled in the outer tub 3 where the heat insulating material 31 is not provided, and the lower bellows After passing through the hose 16, it reaches the circulation path 14.

Then, as in the second embodiment, dew condensation of water occurs in the circulation path 14, and the moist warm air is dehumidified and returns to the drying blower 10. By circulating the warm air in the circulation path 14, the clothes in the inner tank 4 can be dried.

Thus, heat is prevented from being radiated from the outer tub 3 until the warm air heated by the heater 11 comes into contact with the clothing, so that heat can be effectively supplied to the clothing.
The cooling capacity can be improved by cooling and dehumidifying the humid warm air that has exchanged heat with the clothes in the outer tub 3 and the circulation path 14 without the heat insulating material 31, so that the clothes can be efficiently and quickly. Can be dried.

Although the present embodiment has been described with respect to a dryer in which the washing / dehydrating shaft 5 for transmitting the drive of the motor is substantially vertical, the same effect can be obtained also in the case of a drum type in which the transmission shaft is horizontal. In addition, the same effect can be obtained not only in the circulation type dryer but also in the exhaust type in which the moisture of clothes is taken out and the humid air humidified is discharged from the circulation path 14 to the outside of the machine. The same effect can be obtained for a washer / dryer that performs drying.

Embodiment 4 As shown in FIG. 4, the outer tank is formed in a double structure 32, and an air layer is provided. Other configurations are the same as those of the second or third embodiment.

The operation of the above configuration will be described. In addition,
The basic operation in the drying step is the same as the operation of the second embodiment, and the description is omitted.

The hot air blown into the inner tub 4 by the hot air blowing means is kept in the inner tub 4 until it reaches the clothes at the bottom of the inner tub 4.
Although the heat is deprived by the outer tub 3, since the outer tub 3 is formed in the double structure 32, heat radiation is suppressed.

Therefore, as described in the second or third embodiment, the heat of the heater 11 can be efficiently applied to the clothes, and the temperature in the inner tank 4 can be kept high. Since the clothes can be dried in a region where is small, the clothes can be dried efficiently and in a short time.

Further, since the outer tub 3 has the double structure 32, the work of providing the heat insulating material 31 in assembling the product can be omitted, and the assemblability is superior to the first to third aspects of the present invention. Things.

Although the present embodiment has been described with respect to a dryer in which the washing / dehydrating shaft 5 for transmitting the drive of the motor has a substantially vertical direction, the same effect can be obtained in a drum type in which the transmission shaft is horizontal. In addition, the same effect can be obtained not only in the circulation type dryer but also in the exhaust type in which the moisture of clothes is taken out and the humid air humidified is discharged from the circulation path 14 to the outside of the machine. The same effect can be obtained for a washer / dryer that performs drying.

(Embodiment 5) As shown in FIG. 5, a cooling blower 33 is for introducing cooling air from the outside into the housing 1 and is provided on the side wall of the housing 1. Other configurations are the same as those of the above-described embodiments 2 to 4.

The operation of the above configuration will be described. In addition,
The basic operation in the drying step is the same as the operation of the second embodiment, and the description is omitted.

During the drying, when hot air containing moisture by depriving the clothes of moisture passes through the circulation path 14, dew condensation occurs inside the circuit, and the moist hot air is dehumidified and dried. Return to the blower 10. At this time, by blowing the external cold air to the circulation path 14 by the cooling blower 33,
The dew condensation of moisture is further promoted, and the amount of moisture contained in the warm air when the air is blown again to the heater 11 by the drying blower 10 can be reduced. Therefore, since the amount of moisture of the warm air heated by the heater 11 and blown into the inner tank 4 is small,
When water is taken from clothes in contact with clothes, more water can be taken.

As a result, the cooling capacity for cooling and dehumidifying the hot and humid air that has exchanged heat with the clothes in the circulation path 14 can be improved, and the clothes can be dried efficiently and in a short time.

Although the present embodiment has been described with respect to a dryer in which the washing / dehydrating shaft 5 for transmitting the drive of the motor has a substantially vertical direction, the same effect can be obtained in a drum type in which the transmission shaft is horizontal. In addition, the same effect can be obtained not only in the circulation type dryer but also in the exhaust type in which the moisture of clothes is taken out and the humid air humidified is discharged from the circulation path 14 to the outside of the machine. The same effect can be obtained for a washer / dryer that performs drying.

(Embodiment 6) As shown in FIG. 6, the cooling blower 33 introduces cooling air from outside to the inside of the housing 1 and uses no heat-insulating walls (an outer wall without the circulation path 14 or the heat insulating material 31). (3 tanks) is provided on the side wall of the housing 1 so as to blow air. Other configurations are the same as those of the above-described embodiments 2 to 5.

The drying is carried out by removing the moisture of the clothes by the warm air blown into the inner tank 4 by the warm air blowing means. At this time, since the heat insulating material 31 is provided in the tub, when the hot air heated by the heater 11 is blown into the inner tub 4, the heat radiation from the outer tub 3 can be suppressed. The decrease in temperature can be suppressed. Further, since the air is blown to the non-insulated portion, the temperature in the inner tub 4 can be kept high, and the energy supplied to the heater 11 can be used for effectively removing moisture from the clothes. Then, the warm air containing moisture by depriving the clothes of moisture flows into the inner tank 4.
From the inside of the outer tub 3, passes through the lower bellows-like hose 16, and reaches the circulation path 14.

[0057] The warm air containing moisture by depriving the clothes of moisture
When passing through the inner wall of the outer tub 3 and the circulation path 14 of the heat insulation part, the outer wall of the outer tub 3 and the circulation path 14 is cooled by the inflow of external air by the cooling blower 24 installed on the side surface of the housing 1. In the inside, moisture condensation occurs, and the moist warm air is dehumidified and returns to the drying blower 10. By circulating the warm air in the circulation path 14, the clothes in the inner tank 4 can be dried.

As a result, the heat of the heater 11 can be efficiently applied to the clothes, and the temperature in the inner tank 4 can be kept high, so that the clothes are dried in a region where the latent heat of evaporation of water is small. The cooling capacity can be improved by cooling and dehumidifying the humid warm air from which the moisture of the clothing has been removed in the no-insulation unit and the circulation path 14, so that the clothing can be efficiently made.
It can be dried in a short time.

Although the present embodiment has been described with respect to a dryer in which the washing / dehydrating shaft 5 for transmitting the drive of the motor has a substantially vertical direction, the same effect can be obtained in a drum type in which the transmission shaft is horizontal. In addition, the same effect can be obtained not only in the circulation type dryer but also in the exhaust type in which the moisture of clothes is taken out and the humid air humidified is discharged from the circulation path 14 to the outside of the machine. The same effect can be obtained for a washer / dryer that performs drying.

[0060]

As described above, according to the first aspect of the present invention, the outer tub is provided with hot air blowing means for blowing hot air into the outer tub, and the outer tub is insulated. Since the means is provided, the heat can be prevented from being radiated to the outside of the machine, the thermal efficiency can be improved, and the clothes can be dried efficiently and in a short time.

According to the second aspect of the present invention, an outer tank elastically suspended inside the housing, an inner tank rotatably supported in the outer tank, and a rotatable inner bottom of the inner tank. A rotating blade that is freely supported, a driving unit that drives the inner tank or the rotating blade, and a hot air blowing unit that blows hot air into the inner tank; and the heat insulating unit is provided in the outer tank. In the process, the heat can be prevented from being dissipated to the outside of the machine, the thermal efficiency can be improved, and the clothes can be dried efficiently and in a short time.

According to the third aspect of the present invention, since the heat insulating means is provided on the side of the outer tub where the warm air is introduced, it is possible to suppress the heat radiation of the warm air until it hits the clothes and to effectively supply the heat to the clothes. Also, by cooling and dehumidifying the humid warm air that has exchanged heat with the clothes in the outer tank without heat insulation, the cooling capacity can be improved, and the clothes can be dried efficiently and in a short time. Can be.

According to the fourth aspect of the invention, since the outer tank is formed as a double structure as the heat insulating means, it is not necessary to provide a new heat insulating material in addition to the effects of the first to third aspects of the present invention. Thus, it is possible to provide a dryer which is inexpensive and excellent in assemblability.

According to the fifth aspect of the present invention, since a cooling blower is provided on the side surface of the housing, in addition to the effects of the second to fourth aspects, the humid hot air that has exchanged heat with clothing can be used. The cooling capacity of cooling and dehumidifying in the circulation path can be improved,
Clothes can be dried efficiently and in a short time.

According to the sixth aspect of the present invention, since air is blown to the non-insulated wall, in addition to the effect of the fifth aspect, heat radiation of the hot air to the outside of the machine is prevented, and thermal efficiency is improved. The clothes can be dried efficiently and in a short time.

[Brief description of the drawings]

FIG. 1 is a sectional view of a dryer according to a first embodiment of the present invention.

FIG. 2 is a sectional view of a dryer according to a second embodiment of the present invention.

FIG. 3 is a sectional view of a dryer according to a third embodiment of the present invention.

FIG. 4 is a sectional view of a dryer according to a fourth embodiment of the present invention.

FIG. 5 is a sectional view of a dryer according to a fifth embodiment of the present invention.

FIG. 6 is a sectional view of a dryer according to a sixth embodiment of the present invention.

FIG. 7 is a sectional view of a conventional washing and drying machine.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Housing 2 Suspension 3 Outer tank 4 Inner tank 6 Rotating blade 8 Motor (drive means) 10 Drying blower (hot air blowing means) 11 Heater (hot air blowing means) 14 Circulation path 31 Insulation material 32 Double outer tank Structure part 33 Cooling blower

 ────────────────────────────────────────────────── ─── Continuing from the front page (72) Inventor Shigeyo Nakamoto 1006 Kazuma Kadoma, Kazuma, Osaka Matsushita Electric Industrial Co., Ltd. F term (reference) 3B155 AA16 BB16 CA06 CB07 CB49 DB03 DB11 MA01 MA02

Claims (6)

[Claims] A housing, an outer tank elastically suspended from the housing, an inner tank rotatably supported in the outer tank, a driving unit for driving the inner tank, and the inner tank. A drier comprising: a hot air blowing means for blowing hot air into the inside; and a heat insulating means provided in the outer tub. 2. The dryer according to claim 1, further comprising a rotating blade rotatably supported inside the inner tank, and driving means for driving the inner tank or the rotating blade. 3. The dryer according to claim 1, wherein a heat insulating means is provided on the hot air introduction side of the outer tank. 4. The dryer according to claim 1, wherein the outer tub has a double structure as the heat insulating means. 5. The dryer according to claim 2, further comprising a cooling blower provided on a side surface of the housing. 6. The dryer according to claim 5, wherein the blower is configured not to blow air directly to the heat insulating wall.