JPH10272298A - Drum type washing and drying machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve the assembling operability of a blowing heater and to reduce a cost with respect to a drum type washing and drying device for washing, rinsing, dehydrating and drying wash within a drum rotating nearly in a horizontal direction. SOLUTION: An outer tank 3 surrounding the rotary drum 1 rotating nearly in a horizontal direction is covered with a body 8, the drum 1 is rotated by a first motor 6 and heated air is blown to the tank 3 by the blowing heater 33 incorporating a fan and a heater 61. Relating to the heater 33, fixing flange parts 34 are extended at both ends and these parts 34 are arranged on a body upper part 5 to be fixed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a drum type washing and drying machine for washing, rinsing, dehydrating and drying laundry in a drum which rotates substantially horizontally.

[0002]

2. Description of the Related Art Conventionally, this type of drum type washing and drying machine has been configured as shown in FIGS. Hereinafter, the configuration will be described.

[0003] As shown in the figure, a rotary drum 1 is provided with a large number of water passage holes 2 on the entire outer peripheral portion and is rotatably disposed in an outer tank 3. One end of a drum rotating shaft 4 is fixed to the rotation center of the rotating drum 1 in a substantially horizontal direction, and a drum pulley 5 is fixed to the other end of the drum rotating shaft 4. The first motor (motor) 6 is connected to the drum pulley 5 by a rib belt 7 and drives the drum 1 to rotate.

The outer tub 3 is swingably suspended from the body 8 by a spring body 9, the vibration at the time of dehydration start is reduced by the vibration damper 10, and the vibration during the steady dehydration is prevented from being transmitted to the body 8. A balancer 11 that supports vibration and reduces vibration during dehydration is provided. The substantially cylindrical packing member 12 connects the opening of the outer tub 3 corresponding to the front opening of the rotary drum 1 and the front opening of the body 8. A window 13 is provided in the front opening of the body 8 so as to be freely opened and closed.

The blast heating device 14 is located at the upper part of the outer tub 3, and has one end connected to the packing member 12 to be in communication with the outer tub 3, and the other end connected to a duct 15 connected to the lower part of the outer tub 3. doing. Further, the blast heating device 14 has a boss portion 16 provided in the front and inserted and fixed in a mounting hole 17 of the body 8, and a mounting portion 18 is fixed to a fitting 19 fixed to the body 8 with a screw in the rear. The fan 20 is press-fitted or fixed to the rotating shaft 23 of the bearing portion 22 from the radial direction by a female screw 24 together with the inner and outer rings press-fitted into a fan case 21 forming a part of the blower heating device 14. Pulley 25
Is molded from a thermoplastic resin and fixed to the rotating shaft 23 with screws 26 from the radial direction.

The heater 27 is a single sheathed heater which heats the laundry in the rotary drum 1 and is molded in two stages, and has a stepped band-like holding member which clamps the upper side on the outside and the lower side on the inside. A pair of 28 and 29 is fixed to the blower / heater 14 with two upper screws and one lower screw. The sensor 30 detects the temperature inside the rotary drum 1 and is inserted into a rubber holder 32 fitted in the through hole 31 of the duct 15.

The operation of the above configuration will be described.
When the laundry is thrown into the rotating drum 1 and the operation is started, the rotating drum 1 is driven to rotate at a low speed (about 53 rpm) by the first motor 6 during the washing process. The laundry is lifted and dropped on the water surface. Thus, the washing process proceeds. The same operation as the washing process is performed in the rinsing process.

In the dehydration process, the rotary drum 1 is driven to rotate at high speed (about 1000 rpm) by the first motor 6,
The laundry is centrifugally dehydrated. At this time, when the laundry in the rotating drum 1 is shifted, that is, imbalance occurs, the swinging members such as the rotating drum 1 and the outer tub 3 vibrate (swing). The vibration of the oscillating body is attenuated, and is not transmitted to the body 8 by the vibration proof mechanism of the vibration proof damper 10 during steady dehydration.

The opening of the outer tub 3 and the front opening of the body 8 are connected by a substantially cylindrical packing member 12, but the substantially cylindrical packing member 12 is swung by the swinging body. By bending, the substantially cylindrical packing member 12 is formed.
Vibration is not transmitted to the body 8 through the.

In the drying process, the rotary drum 1 is driven to rotate at a low speed by the first motor 6,
Fan 2 driven by a second motor (not shown)
The air generated by the airflow is heated by the heater 27 and sent into the rotating drum 1 to heat and dry the laundry.

[0011]

In such a conventional structure, the blower heating device 14 inserts the front boss portion 16 into the mounting hole 17 of the body 8 and fixes it. In addition to having the problem of spending a lot of work time, it is fixed before and after the body 8, but it does not become a strength member of the body 8, and the cost is increased, for example, by increasing the thickness of the body 8. .

The fan 20 of the blast heating device 14 is
Since both the inner and outer races of the bearing portion 22 are fixed by press-fitting, not only the assembling work and the disassembling work are difficult, but also it is very difficult to set a gap in the bearing portion 22.
There was a risk of abnormal sounds from the aircraft.

The pulley 25 of the blast heating device 14
Is molded from a thermoplastic resin and is press-fitted into the rotating shaft 23, so that it is extremely difficult to align the shaft center during the assembling work, and the eccentricity and runout of the pulley 25 occur, and the
In addition to the risk of abnormal sound from the second, the rotational direction is fixed by the press-fitting of the thermoplastic resin. And the idler of only the pulley 25 occurs, which may cause an abnormal stop.

In the case where the pulley 25 is fixed in the radial direction with the screw 26, the dynamic balance is shifted by the screw 26, and not only the abnormal sound may be generated from the bearing portion 22, but also in a high temperature state. Since the thermal expansion of the pulley 25 differs from that of the screw 26, the tightening torque is weakened and the screw 26 is loosened, causing only the pulley 25 to run idle and abnormally stopping.

The fan 20 of the blast heating device 14 is
Since it is press-fitted into the rotating shaft 23, it is extremely difficult to align the shaft center during the assembly work, which causes eccentricity and runout of the fan 20 and not only may cause abnormal noise from the bearing portion 22, but also When the fan 20 is made of a thermoplastic resin, the rotational direction is fixed by press-fitting. Therefore, in a high temperature state, the thermal expansion between the fan 20 and the rotary shaft 23 is different, the press-in force is weakened, and only the rotary shaft 23 idles. Occurred and there was a risk of abnormal stop. In the case where the fan 20 is fixed in the radial direction with the female screw 24, the dynamic balance is shifted by the female screw 24, and there is a possibility that abnormal noise may be generated from the bearing portion 22.

The heater 27 of the blast heating device 14 is
Since one sheathed heater is formed in two stages, the processing method is difficult and the cost is high. In addition, a step-shaped band-shaped holding metal fitting 2 sandwiches the upper side on the outside and the lower side on the inside.
8 and 29 pairs, which are fixed to the blast heating device 14 with two upper screws and one lower screw, so that the long band-shaped
Not only was it troublesome to handle 8, 29, but also there were many places where screws were tightened, resulting in poor workability.

Further, the sensor 30 attached to the duct 15 has a rubber holder 32 fitted in the through hole 31.
In addition, there is a risk that the lead wire may be easily pulled out, and there is no protection of the lead wire.

The present invention has been made to solve the above-mentioned conventional problems. The first object of the present invention is to improve the assembling workability by extending a mounting portion of a blower heating device, and to reduce the cost of assembling as a body strength member. The purpose is.

It is a second object of the present invention to improve the assemblability of the bearing by improving the assemblability of the bearing by applying a preload to the bearing of the fan of the blower heating apparatus by press-fitting the inner ring and fusing the outer ring. I have.

Further, the pulley of the blower heating device is formed with a strong member to form a detent and is fixed in the axial direction, thereby preventing not only eccentricity and surface deviation but also abnormal stop due to idling of the pulley. This is the third purpose.

In addition, by preventing the fan of the blower heating device from forming a detent with a strong member and fixing the fan from the axial direction, not only eccentricity and surface deviation are prevented, but also abnormal stop due to idling of the rotating shaft is prevented. This is the fourth object.

A fifth object is to reduce the cost and improve the workability by dividing the heater of the blower heating device into two and reducing the size of the holding bracket.

A sixth object of the present invention is to protect and firmly fix the lead wires of the sensor attached to the duct, thereby improving the reliability of the mounting portion and preventing the lead wires from being broken.

[0024]

SUMMARY OF THE INVENTION In order to attain the first object, the present invention provides mounting flanges at both ends of a blower heating device which rotates in a substantially horizontal direction and blows warm air to a rotating drum for storing laundry. The mounting flange portion is arranged above the body and fixed.

[0025] Thus, the mounting flange portion of the blower heating device can be fixed after the mounting flange portion is placed on the upper surface of the body, so that the assembly workability can be improved, and the body can be fixed by the mounting flange portions at both ends. , Can be added as a body strength member, and cost can be reduced.

Further, in order to achieve the second object, a bearing of a blower heating device which rotates in a substantially horizontal direction and blows warm air to a rotating drum for storing laundry is pressed into a rotating shaft, and this bearing is detached. A spring for urging in the thrust direction of the bearing is inserted into a fan case which can be housed as much as possible, and a retaining ring is provided for fixing the bearing with the urging force applied thereto.

Thus, the bearing can be easily attached to and detached from the fan case, the assembling operability can be improved, and the bearing can be fixed with a biasing force applied thereto. Not only the occurrence of abnormal noise can be prevented, but also the setting of the clearance of the bearing may be an ordinary one, and the cost can be reduced.

In order to achieve the third object, a fitting portion of a pulley of a blower heating device which rotates in a substantially horizontal direction and blows warm air to a rotating drum for storing laundry is integrally formed of a heat-resistant material. In addition, the rotation is prevented in the rotation direction, and the rotation is fixed detachably from the axial direction.

Thus, the pulley can be easily attached to and detached from the rotating shaft, eccentricity and runout due to work variations can be prevented, and abnormal noise of the bearing can be prevented. Since the portion is formed of a heat-resistant material, loosening of the fitting portion can be prevented, and abnormal stop due to idling of only the pulley can be prevented.

Further, in order to achieve the fourth object, a fixing portion of a fan of a blower heating device which rotates in a substantially horizontal direction and blows warm air to a rotating drum for storing laundry is formed of a heat-resistant material, Further, it is provided with a detent in the rotation direction and fixed detachably in the axial direction.

Thus, the fan can be easily attached to and detached from the rotating shaft, eccentricity and runout due to work variations can be prevented, abnormal noise of the bearing can be prevented, and fixing can be performed. Since the portion is formed of a heat-resistant material, loosening of the fixed portion can be prevented, and abnormal stop due to idling of only the rotating shaft can be prevented.

Further, in order to achieve the fifth object, a heater of a blower heating device which rotates in a substantially horizontal direction and blows warm air to a rotating drum for storing laundry comprises first and second heaters. The heaters are fixed by a pair of holding brackets having a substantially Z-shaped cross section and a substantially H-shaped cross section which sandwich at least two portions of each heater.

As a result, the heater can be formed into a planar shape, the workability can be improved, the cost can be reduced, and since the holding bracket can be downsized and can be fixed with two or less screws, workability is improved. can do.

In order to achieve the sixth object, a blower heating device which rotates in a substantially horizontal direction and blows warm air to a rotating drum for storing laundry, and a duct connected to an outer tub containing the rotating drum are provided. A first holder made of an elastic body which is provided with a through-hole in the duct, fits into the through-hole, and inserts the sensor into the central through-hole, sandwiches an end face flange of the sensor with the first holder, and A second holder for covering the lead wire, and a fixture for fixing the second holder and the first holder to the duct are provided.

Thus, the protection of the lead wire of the sensor attached to the duct can be strengthened, the reliability of the mounting portion can be improved, and the disconnection of the lead wire can be prevented.

[0036]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The invention according to claim 1 of the present invention is directed to a rotary drum rotating substantially horizontally, an outer tank containing the rotary drum, a body covering the outer tank, and the rotary drum. A motor that rotates the fan, a blower heating device having a built-in fan and a heater that blows heated air to the outer tub, the blower heating device has mounting flanges extending at both ends,
This mounting flange portion is arranged and fixed on the upper part of the body, and after mounting the mounting flange portion of the blower heating device on the upper surface of the body, the mounting flange portion can be fixed, and the assembling workability can be improved, The body can be fixed by the mounting flanges at both ends, and can be added as a strength member of the body, and the cost can be reduced.

According to a second aspect of the present invention, there is provided a rotary drum rotating in a substantially horizontal direction, an outer tub containing the rotary drum, a body covering the outer tub, and a first motor for rotating the rotary drum. And a blower heating device having a built-in heater and a fan that blows heated air to the outer tub, and the blower heating device is press-fitted into the rotating shaft, a fan fixed to one of the rotating shafts, and the rotating shaft. A bearing, a fan case that detachably houses the bearing to form a vortex chamber, a spring that biases the bearing in a thrust direction, a retaining ring that fixes the bearing while applying a biasing force thereto, A pulley fixed to the other shaft and a second motor for driving the pulley are fixed to the fan case, so that the bearing can be easily attached to and detached from the fan case, thereby improving assembling workability. The bearing can be fixed with a biasing force applied to it, which not only prevents the occurrence of abnormal noise due to micro-vibration inside the bearing, but also allows the normal setting of the bearing gap, thus reducing costs. Can be.

According to a third aspect of the present invention, there is provided a rotary drum rotating in a substantially horizontal direction, an outer tub containing the rotary drum, a body covering the outer tub, a motor for rotating the rotary drum, A fan having a built-in heater for sending heated air to the outer tank and having a rotating shaft and a blower heating device having a pulley for rotating the fan is provided. And the fitting portion is detachably fixed in the axial direction of the rotating shaft, so that the pulley can be easily attached to and detached from the rotating shaft, thereby preventing eccentricity and runout due to variation in work. It is possible to prevent abnormal noise generation of the bearing part, and since the fitting part is formed of heat resistant material, it is possible to prevent the fitting part from loosening, and to prevent abnormal stop due to idling of only the pulley. Can be prevented

According to a fourth aspect of the present invention, there is provided a rotary drum rotating in a substantially horizontal direction, an outer tub containing the rotary drum, a body covering the outer tub, a motor for rotating the rotary drum, A blower heating device having a built-in heater for blowing heated air to the outer tub and having a fan, wherein the fan is formed of a heat-resistant material integrally with or separately from the fan on a rotating shaft rotatably fixed to a fan case. The fixed part, which is detented in the rotation direction, is fixed detachably in the axial direction, and the fan can be easily attached to and detached from the rotating shaft,
Eccentricity and runout due to work variations can be prevented, and abnormal noise generation in the bearing can be prevented.
Since the fixing portion is formed of a heat-resistant material, it is possible to prevent the fixing portion from loosening and prevent an abnormal stop due to idling of only the rotating shaft.

According to a fifth aspect of the present invention, there is provided a rotary drum rotating in a substantially horizontal direction, an outer tub containing the rotary drum, a body covering the outer tub, a motor for rotating the rotary drum, A fan for blowing heated air to the outer tub and a blower heating device having a built-in heater are provided, and the heater includes:
A first heater and a second heater, which are fixed by a pair of holding fittings having a substantially H-shaped cross section and a substantially H-shaped cross section that sandwich at least two portions of each heater;
Since the heater can be formed in a planar shape, the workability can be improved, the cost can be reduced, and the holding metal can be reduced in size and can be fixed with two or less screws, so that the workability can be improved.

According to a sixth aspect of the present invention, there is provided a rotary drum rotating in a substantially horizontal direction, an outer tub containing the rotary drum, a body covering the outer tub, a motor for rotating the rotary drum, A blower heating device incorporating a fan and a heater for blowing heated air to the outer tub, a duct connecting the outer tub and the blower heating device are provided, and the duct is provided with a through hole and fitted into the through hole. A first holder made of an elastic body into which a sensor is inserted into a central through-hole, a second holder that sandwiches an end face flange of the sensor with the first holder and covers a lead wire; A fixing bracket for fixing the first holder to the duct is provided. The protection of the lead wire of the sensor attached to the duct can be strengthened, and the reliability of the mounting portion can be improved. Prevents disconnection Rukoto can.

[0042]

An embodiment of the present invention will be described below with reference to the drawings. The same components as those in the conventional example are denoted by the same reference numerals, and description thereof is omitted.

As shown in FIGS. 1 and 2, the blower / heater 33 has mounting flanges 34 extending at both ends in the front-rear direction, and the mounting flanges 34 are arranged on the upper portion 36 of the body 8, and screws 36 are provided. It is fixed with.

The rotating shaft 37 provided in the blast heating device 33 is
As shown in FIGS. 3 and 4, the bearings 38 and 39 are press-fitted with the spacer 40 interposed therebetween. This bearing 38, 3
The outer periphery of 9 is a housing part 42 integrally formed with a fan case 41 forming a vortex chamber of the blower heating device 33, and inserts and holds the bearings 38, 39 in a detachable fused state. A spring 43 such as a wave washer is inserted into the housing portion 42, and the retaining ring 44 is fixed in a state of being urged from the bearing 38 to the bearing 39 via the spacer 40.
Is locked in the groove 45.

The pulley 46 is integrally formed with a fitting portion 47 made of a heat-resistant material such as a sintered alloy having high dimensional accuracy, has a detent 48 such as a D-cut, and has a D-cut portion 49 at the upper end of the rotating shaft 37. And is fixed so as to be detachable in the axial direction by a nut 50.

The fan 51 has a blade 52 formed of an aluminum plate, a central boss 53 formed of an aluminum die-cast, fitted to a lower D-cut portion 54 of the rotating shaft 37, and a D-cut or the like at the center. It is detachably fixed in the axial direction by a nut 57 via a fixing portion 56 formed of a heat-resistant member such as a stainless steel plate provided with a detent 55.

As shown in FIG. 5, the second motor 58
The rotation of the motor pulley 59 fixed to the extension surface of the fan case 41 and
0 to the pulley 46.

As shown in FIG. 6, the heater 61 includes a first heater 62 and a second heater 63, each of which has a substantially W-shaped planar shape.
, And are arranged on the outer tank 3 side from the fan 51 of the blower heating device 33, and the first heater 62 and the second heater
Cross section Z that sandwiches two locations at substantially the center of the heater 63 of FIG.
Insulating spacers 66 and 67 are attached to the upper fixed portion and the lower fixed and blower heating device 33 by a pair of stainless steel holding brackets 64 and 65 having a pair of springs having a substantially planar H shape.
And is fixed with a screw 68 at one place.

The sensor 69 is, as shown in FIG.
The lower end of the first holder 72 is connected to the lower end of the first holder 72 made of an elastic material such as rubber and inserted into the through hole 71, and is inserted and held in a duct 70 connected to the lower end of the first holder 72 and the blower heating device 33. , A second holder 76 made of an elastic material such as rubber for covering the lead wire 75 of the sensor 69 with a notch 77 at the center thereof. To the duct 70 with screws 79.

The operation of the above configuration will be described.
When the laundry is thrown into the rotating drum 1 and the operation is started, the rotating drum 1 is driven to rotate at a low speed (about 53 rpm) by the first motor 6 during the washing process. Objects are lifted and dropped onto the surface of the water. Thus, the washing process proceeds. The same operation as the washing process is performed in the rinsing process.

In the dehydration process, the rotary drum 1 is driven to rotate at a high speed (about 1000 rpm) by the first motor 6,
The laundry is centrifugally dehydrated. At this time, when the laundry in the rotating drum 1 is shifted, that is, imbalance occurs, the swinging members such as the rotating drum 1 and the outer tub 3 vibrate (swing). The vibration of the oscillating body is attenuated, and is not transmitted to the body 8 by the vibration proof mechanism of the vibration proof damper 10 during steady dehydration. Further, the opening between the outer tub 3 and the front opening of the body 8 is connected by the substantially cylindrical packing member 12, but the substantially cylindrical packing member 12 bends due to the swing of the rocking body. Vibration is not transmitted to the body 8 through the substantially cylindrical packing member 12.

In the drying process, the rotary drum 1 is driven to rotate at a low speed by the first motor 6,
The wind generated by the fan 51 driven by the second motor 58 is heated by the heaters 62 and 63, and is blown into the rotating drum 1 to heat and dry the laundry.

Here, since the mounting flange portions 34 are extended at both ends of the blower heating device 33 and are disposed on the upper portion 35 of the body 8, the mounting flange portions 34 of the blower heating device 33 are mounted on the upper portion 35 of the body 8. After being put on, it can be fixed, the workability of assembling can be improved.
The body 8 can be fixed by the mounting flange portions 34 at both ends of the body 8, and can be added as a strength member of the body 8, so that the cost can be reduced.

The bearings 38, 3
9 is pressed into the rotating shaft 37, and a spring 43 for urging the bearings 38, 39 in the thrust direction is inserted into a fan case 41 which accommodates the bearings 38, 39 in a detachable manner.
Since the retaining ring 44 is provided to fix the bearings 8 and 39 in a state where the urging force is applied, the bearings 38 and 39 are connected to the fan case 41.
The bearings 38, 39 can be fixed in a state where an urging force is applied to them, so that abnormal noise is generated due to minute vibration inside the bearings 38, 39. Not only can be prevented, but also the bearing 3
The setting of the gaps 8 and 39 may be a normal setting, and the cost can be reduced.

Further, since the fitting portion 47 of the pulley 46 of the blower heating device 33 is integrally formed of a heat-resistant material, a detent 48 is provided in the rotation direction, and the pulley 46 is detachably fixed in the axial direction. Can be easily attached to and detached from the rotating shaft 37, eccentricity and runout due to variations in work can be prevented, abnormal noise of the bearings 38 and 39 can be prevented, and the fitting portion 47 Since it is formed of a heat-resistant material, the fitting portion 47 can be prevented from loosening, and the pulley 4
Abnormal stop due to idle rotation of only 6 can be prevented.

Further, the fixing portion 56 of the fan 51 of the blower heating device 33 is formed of a heat-resistant material, is provided with a detent 55 in the rotation direction, and is fixed detachably in the axial direction. It can be easily attached to and detached from the shaft 37, can prevent eccentricity and runout due to variations in work, can prevent abnormal noise of the bearings 38 and 39, and use the heat-resistant material for the fixing part 56. As a result, the fixing portion 56 can be prevented from loosening, and an abnormal stop due to idling of only the rotating shaft 37 can be prevented.

The heater 61 of the blower heater 33 is
The first and second heaters 62 and 63 have a cross section of substantially Z which sandwiches at least two portions of the respective heaters 62 and 63.
And the heaters 62 and 63 can be formed in a planar shape, the workability can be improved, and the cost can be reduced. Since the holding fittings 64 and 65 can be reduced in size and can be fixed with two screws 68, workability can be improved.

Further, the blast heating device 33 and the rotating drum 1
A first holder 72 made of an elastic body is provided in the duct 70 connected to the outer tub 3 containing the first through hole 71, and the sensor 69 is fitted in the through hole 71 and the sensor 69 is inserted into the central through hole 73. A second holder 76 for sandwiching the end face flange 74 with the first holder 72 and covering the lead wire 75, and a fixture 78 for fixing the second holder 76 and the first holder 72 to the duct 70 are provided. Therefore, the protection of the lead wire 75 of the sensor 69 attached to the duct 70 can be strengthened, the reliability of the attachment portion can be improved, and the break of the lead wire 75 can be prevented.

Since the second motor 58 is fixed to the extension surface of the fan case 41, the second motor 5
Motor pulley 59 and fan case 41 fixed to 8
, The parallelism of the pulley 46 can be maintained, and the sliding noise due to the displacement of the belt 60 transmitting the rotation can be prevented.

[0060]

As described above, according to the first aspect of the present invention, a rotating drum that rotates in a substantially horizontal direction, an outer tank that includes the rotating drum, and a body that covers the outer tank. A motor for rotating the rotary drum; a fan for blowing heated air to the outer tub; and a blower heating device having a built-in heater. The blower heating device has mounting flanges extending at both ends thereof. Since the parts are arranged and fixed on the upper part of the body, the fixing part can be fixed after the mounting flange part of the blower heating device is put on the upper surface of the body, the workability of assembly can be improved, and both ends of the blower heating device can be improved. The body can be fixed by the mounting flange portion, and it can be added as a strength member of the body, and the cost can be reduced.

According to the second aspect of the present invention, the rotating drum that rotates substantially in the horizontal direction, the outer tub that includes the rotating drum, the body that covers the outer tub, and the rotating drum are rotated. A first motor, a fan for blowing heated air to the outer tub and a blower heating device having a built-in heater, the blower heating device includes: a rotating shaft; a fan fixed to one of the rotating shafts; A bearing press-fitted into a shaft, a fan case removably housing the bearing to form a vortex chamber, a spring for biasing the bearing in a thrust direction, and a retaining ring for fixing the bearing in a state where a biasing force is applied to the bearing Since the pulley fixed to the other of the rotating shafts and the second motor for driving the pulley are fixed to the fan case, the bearing can be easily attached to and detached from the fan case, thereby improving the assembling workability. The bearing can be fixed with a biasing force applied to it, which not only prevents the occurrence of abnormal noise due to micro-vibration inside the bearing, but also allows the normal setting of the bearing gap, reducing costs. can do.

According to the third aspect of the present invention, the rotating drum that rotates in a substantially horizontal direction, an outer tank that includes the rotating drum, a body that covers the outer tank, and the rotating drum are rotated. A motor, a fan having a built-in heater for sending heated air to the outer tub and having a rotating shaft, and a blower heating device having a pulley for rotating the fan, wherein the pulley is fitted with a detent in a rotating direction. The part is molded integrally with heat-resistant material, and the fitting part is detachably fixed in the axial direction of the rotating shaft, so that the pulley can be easily attached to and detached from the rotating shaft, and eccentricity and runout due to work variations can be reduced. It is possible to prevent the occurrence of abnormal noise in the bearing part, and since the fitting part is made of heat-resistant material, it is possible to prevent the fitting part from loosening, and the abnormality only due to idling of the pulley alone Prevent outages Kill.

According to the fourth aspect of the present invention, the rotating drum rotating in a substantially horizontal direction, the outer tub containing the rotating drum, the body covering the outer tub, and the rotating drum are rotated. A motor and a blower heating device having a built-in heater for blowing heated air to the outer tub and having a fan,
Since the fan is fixed to a rotating shaft rotatably fixed to a fan case integrally or separately from the fan with a heat-resistant material, and is fixed in a rotational direction so as to be detachable in the axial direction, The fan can be easily attached to and detached from the rotating shaft, preventing eccentricity and runout due to work variations, preventing abnormal sound from being generated in the bearing, and using a heat-resistant material for the fixed part. Because it is forming
Looseness of the fixed portion can be prevented, and abnormal stop due to idling of only the rotating shaft can be prevented.

According to the fifth aspect of the present invention, the rotating drum that rotates substantially in the horizontal direction, the outer tub that includes the rotating drum, the body that covers the outer tub, and the rotating drum are rotated. A motor, a fan for blowing heated air to the outer tub, and a blower heating device having a built-in heater, wherein the heater includes a first heater and a second heater, and sandwiches at least two portions of each heater. Since the heater is fixed by a pair of holding brackets having a substantially Z-shaped cross section and a substantially H-shaped planar shape, the heater can have a planar shape, and the workability can be improved.
The cost can be reduced, and the holding fixture can be reduced in size and can be fixed with two or less screws, so that workability can be improved.

According to the sixth aspect of the present invention, the rotating drum that rotates in a substantially horizontal direction, an outer tank that includes the rotating drum, a body that covers the outer tank, and the rotating drum are rotated. A motor, a blower heating device having a built-in fan and a heater for blowing heated air to the outer tank, and a duct connecting the outer tank and the blower heating device. A first holder made of an elastic body which fits into the central hole and inserts the sensor into the central through hole; a second holder which sandwiches the end face flange of the sensor with the first holder and covers the lead wire; Holder and the first
Since the fixture for fixing the holder to the duct is provided, the protection of the lead wire of the sensor attached to the duct can be strengthened, the reliability of the attachment portion can be improved, and the disconnection of the lead wire can be prevented. Can be.

[Brief description of the drawings]

FIG. 1 is a sectional view of a drum type washer / dryer according to an embodiment of the present invention.

FIG. 2 is a partially cutaway perspective view of the drum type washing and drying machine.

FIG. 3 is a cross-sectional view of a blower heating device of the drum type washing and drying machine.

FIG. 4 is an enlarged cross-sectional view of a bearing portion of a blower heating device of the drum type washing and drying machine.

FIG. 5 is a partially cutaway top view of the blast heating device of the drum type washing and drying machine.

FIG. 6 is an enlarged cross-sectional view of a heater and a holding bracket of the blast heating device of the drum type washing and drying machine.

FIG. 7 is an enlarged sectional view of a sensor mounting portion of the drum type washing and drying machine.

FIG. 8 is a sectional view of a conventional drum type washer / dryer.

FIG. 9 is an enlarged cross-sectional view of a bearing portion of the blower heating device of the drum type washing and drying machine.

FIG. 10A is a top view of a heater and holding fittings of the drum type washing and drying machine. FIG. 10B is a cross-sectional view of a heater and holding fittings of the drum type washing and drying machine.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 rotating drum 3 outer tub 6 first motor (motor) 8 body 33 blast heating device 34 mounting flange 35 upper body 51 fan 61 heater

Claims (6)

[Claims] 1. A rotating drum that rotates in a substantially horizontal direction, an outer tank that includes the rotating drum, a body that covers the outer tank, a motor that rotates the rotating drum, and blows heated air to the outer tank. A drum-type washing and drying machine comprising: a fan and a blower heating device having a built-in heater, wherein the blower heating device has mounting flange portions extending at both ends, and the mounting flange portions are arranged above the body and fixed. 2. A rotating drum rotating in a substantially horizontal direction, an outer tub containing the rotating drum, a body covering the outer tub, a first motor for rotating the rotating drum, and heating of the outer tub. A fan for blowing air and a blower heating device having a built-in heater are provided.The blower heating device includes a rotating shaft, a fan fixed to one of the rotating shafts, a bearing press-fitted to the rotating shaft, and the bearing. A fan case that is detachably housed to form a vortex chamber, a spring that urges the bearing in the thrust direction, a retaining ring that fixes the bearing while applying a biasing force, and is fixed to the other of the rotating shafts A drum type washing / drying machine in which a pulley and a second motor for driving the pulley are fixed to the fan case. 3. A rotating drum that rotates in a substantially horizontal direction, an outer tub containing the rotating drum, a body that covers the outer tub, a motor that rotates the rotating drum, and blowing of heated air to the outer tub. A fan having a built-in heater and having a rotating shaft and a blower heating device having a pulley for rotating the fan, wherein the pulley is integrally molded with a heat-resistant material at a fitting portion that is detented in the rotation direction. Drum type washer / dryer in which the fitting portion is detachably fixed in the axial direction of the rotating shaft. 4. A rotating drum that rotates in a substantially horizontal direction, an outer tub that includes the rotating drum, a body that covers the outer tub, a motor that rotates the rotating drum, and blowing of heated air to the outer tub. A blower heating device having a built-in heater and a fan. The fan is formed integrally with or separate from the fan with a heat-resistant material on a rotating shaft rotatably fixed to a fan case, and is provided with a detent in a rotating direction. Drum type washer / dryer in which the fixed part is fixed detachably in the axial direction. 5. A rotating drum that rotates in a substantially horizontal direction, an outer tub that includes the rotating drum, a body that covers the outer tub, a motor that rotates the rotating drum, and blowing of heated air to the outer tub. And a blower heating device having a built-in heater. The heater includes a first heater and a second heater, and has a substantially H-shaped cross section and a substantially H-shaped cross section that sandwiches at least two portions of each heater. Drum type washing and drying machine fixed by a pair of holding brackets. 6. A rotating drum that rotates in a substantially horizontal direction, an outer tub that includes the rotating drum, a body that covers the outer tub, a motor that rotates the rotating drum, and blowing of heated air to the outer tub. A blower heating device having a built-in fan and a heater, and a duct connecting the outer tank and the blower heating device. The duct is provided with a through-hole, fitted into the through-hole, and provided with a sensor in a central through-hole. A first holder made of an elastic body to be inserted, a second holder for holding the end face flange of the sensor with the first holder and covering the lead wire, and connecting the second holder and the first holder to the duct Drum type washer / dryer equipped with fixing brackets for fixing to