JPH0779901B2 - Drum washer dryer - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Field of Industrial Application) The present invention is directed to the rotation of a rotary drum disposed in a trough.
The present invention relates to a drum type washer / dryer in which clothes are washed and dehydrated, and then the clothes are dried with warm air while being stirred.

(Prior Art) In a conventional drum type washer / dryer, a tub for installing a rotary drum therein is made of a metal plate, and a fan device is arranged on one side of the tub made of the metal plate. The casing of the fan device is screwed to a trough, and during the drying operation, the fan in the casing is rotated to blow air into the rotary drum to dry the clothes.

(Problems to be Solved by the Invention) In the case of the above-described conventional configuration, the casing of the fan device is screwed into a tub made of a metal plate, so that the screw penetrates the side wall of the tub. Therefore, the screw for fixing the lower part of the casing is inevitably constructed so as to be penetrated into a portion where water is immersed in the washing operation. For this reason, strict water leak prevention measures such as sealing the through holes of the screws are indispensable, and not only is assembly time consuming, but the accumulated water in the tub leaks out of the tub due to deterioration of the seal over time. This was a problem in practical use.

The present invention has been made in order to solve such a problem, and therefore an object thereof is to provide a drum type washer / dryer capable of surely preventing water leakage to the outside of a trough and improving the assembling property during manufacturing. It is in.

[Structure of the Invention] (Means for Solving the Problems) A drum type washer / dryer of the present invention includes a tub capable of storing water,
A rotating drum that is rotatably provided in this trough to wash and dewater the inner clothes by the rotation and to stir during the drying operation, and a fan that is disposed on one side of the trough and blows into the rotating drum during the drying operation. And a fan device for drying the clothes, the side wall of the trough on the fan device side is formed of plastic, and the plastic side wall forms a peripheral wall of the casing of the fan device. It is characterized in that the surrounding wall portion is integrally formed.

(Function) Since the surrounding wall portion forming the peripheral wall of the casing of the fan device is integrally formed with the plastic side wall portion of the tub, unlike the conventional case, a screw penetrates the tub side wall portion to stop the casing. It eliminates the need and eliminates the problem of water leakage due to penetration of the screw. Moreover, by integrating the side wall of the tub and the peripheral wall (enclosure) of the casing, the number of parts is reduced and the assemblability is improved.

(Embodiment) An embodiment of the present invention will be described below with reference to the drawings. First, in FIG. 2 showing the overall schematic configuration, reference numeral 1 is an outer box of a drum type washing and drying machine, and a trough 2 is supported inside thereof by an elastic supporting mechanism 3. A horizontal shaft type rotary drum 4 is arranged in the tub 2, and rotary shafts 5 and 6 fixed to the centers of the left and right plates 4a and 4b are fixed to the side wall portions 2a and 2b of the tub 2. It is supported by bearings 7 and 8. Reference numeral 9 denotes a double shaft type motor fixed to the outer bottom portion of the trough 2 and configured so that the speed can be switched by switching the number of poles, for example. Rotating shaft 9a on the left side of this motor 9
Between the pulley 11 fitted to the output shaft 10a protruding to the left side of the speed reduction mechanism 10 and the pulley 12 fitted to the rotary shaft 5 on the left side of the rotary drum 4. , Belt 13 is stretched around. A fan drive shaft 14 is rotatably supported by a bearing 15 on an extension of the rotary shaft 9b on the right side of the motor 9, and both shafts 9b, 14 are connected by a clutch mechanism 16 during a dry operation. ing.
On the other hand, 17 is a fan device arranged on the right side wall portion 2b of the tub 2,
As shown in FIG. 1, the casing 18 and this casing
It is composed of a fan 21 also serving as a heat exchanger, which is arranged so as to partition the inside of the chamber 18 into two left and right chambers 19 and 20.

The structure of the casing 18 and the tub 2 of the fan device 17 has the following features. That is, the trough 2 is configured by watertightly closing the left and right ends of a cylindrical body portion 2c made of, for example, a metal plate with side wall portions 2a and 2b, and each side wall portion 2a and 2b is made of plastic. Then, the surrounding wall portion 22 that constitutes the peripheral wall of the casing 18 is integrally formed on the right side wall portion 2b made of plastic (see FIG. 3), and the casing 23 is formed by covering the surrounding wall portion 22 with the cover 23. There is. Further, a shaft 24 that rotatably supports the fan 21 is fixed to a support member 25 of a bearing 8 of the rotary shaft 6 at a position that is biased above the rotary shaft 6 of the rotary drum 4. Axis 24 of such a fan 21
The position of the intake port 26 of the left chamber 19 is relatively biased upward by setting the position of
The inflow of washing water into 18 is prevented as much as possible.

On the other hand, the rotary drum 4 corresponds to the intake port 26 of the left chamber 19.
A hot air outlet 27 is formed on the right side plate 4b of the
The inside of the rotary drum 4 communicates with the inside of the chamber 19 on the left side through 27 and the intake port 26. An intake port 28 is formed in the center and an exhaust port (not shown) is formed on the outer peripheral side of the cover 23 that constitutes the side wall of the right chamber 20, and each of the intake ports is formed on the right side surface of the outer box 1. It communicates with the port 29 (see FIG. 2) and the exhaust port (not shown). On the other hand, 31 is a circulation duct with a heater 32 disposed above the rotary drum 4, one end of which is the chamber on the left side.
The other end is connected to a warm air supply port 33 formed in the upper part of the left side wall portion 2a of the trough 2. Correspondingly, the left side plate 4a and the body portion 4c of the rotary drum 4 are provided with a large number of small holes 34 serving as hot air inflow holes and dehydration holes, and the warm air is passed through the small holes 34 inside the rotary drum 4 through the small holes 34. I am trying to supply it to.
Between the pulley 35 provided at the center of the fan 21 and the pulley 36 fitted to the right end of the fan drive shaft 14, a belt
37 has been passed over. 38 is a hot air outlet of the rotating drum 4.
A lint filter covering 27, and 39 is a baffle (only one is shown) intermittently provided on the inner peripheral surface of the body portion 4c of the rotary drum 4.

Next, the operation of the above configuration will be described. When clothes and detergent are put into the rotary drum 4 from the clothes entrance 40 (see FIG. 3) at the upper part of the outer box 1, water is supplied into the tub 2, and the washing operation is started, the motor 9 is started, The rotational force is the reduction mechanism
It is decelerated at 10 and transmitted to the rotating drum 4. As a result, the rotary drum 4 is rotated and the clothes inside are stirred up and down, and the stirring action causes the clothes to be washed with detergent. In this detergent washing process and the rinsing process and dehydration process described below,
The clutch mechanism 16 is maintained in the released state, the fan drive pulley 14 does not rotate, and therefore the fan 21 does not rotate. After completion of the detergent washing process, drain and re-water, and rotate the rotating drum 4 only to rinse clothes as described above. After the completion of this rinsing step, the water is drained, the motor 9 is rotated at high speed, and the rotary drum 4 is rotated at high speed to dehydrate the clothes. After this dehydration is completed, the process proceeds to the drying process. In this drying process, the motor 9 is operated in a state where the clutch mechanism 16 is connected and the rotating shaft 9b of the motor 9 and the fan drive shaft 14 are connected. As a result, the rotational force of the motor 9 is applied to the fan drive shaft 14
Is also transmitted to the fan 21 via the rotary fan 4, and the fan 21 is also rotated together with the rotary drum 4. In this drying process, the heater 32 is also energized, and the rotation of the fan 21 causes the air in the rotary drum 4 to pass through the warm air outlet 27 and the intake port 26 as shown by an arrow A in FIG. The air is sucked into 19, is heated by the heat of the heater 32 through the circulation duct 31, and is discharged from the warm air supply port 33 into the tub 2. This warm air flows in through the small holes 34 in the left side plate 4a and the body portion 4c of the rotary drum 4 as shown by the arrow B in FIG. 2, and dries the clothes. The damp air that draws moisture away from your clothes is
Is sucked into the chamber 19 on the left side of the chamber, where it is dehumidified by exchanging heat with the outside air sucked into the chamber 20 on the right side through the intake ports 28 and 29 via the fan 21. The dehumidified air flows through the circulation duct 31.
Is again warmed through and dried. In this way, while the warm air is being circulated, the clothes are turned upside down by the rotation of the rotary drum 4 to efficiently dry the clothes.

Thus, according to the above configuration, the side wall portion 2b of the trough 2 on the fan device 17 side is formed of plastic, and the plastic side wall portion 2b forms the surrounding wall portion 22 that constitutes the peripheral wall of the casing 18 of the fan device 17. Since it is configured as a single unit,
Unlike the conventional case, it is not necessary to pass a screw through the side wall portion 2b of the trough 2 to stop the casing 18, and the problem of water leakage due to the penetration of the screw is eliminated. Of course, the side wall portion 2b and the surrounding wall portion are eliminated.
There is no risk of water leaks or hot air leaks from between 22 and. Moreover, the side wall portion 2b of the tub 2 and the peripheral wall of the casing 1 (the surrounding wall portion 2
By integrating with 2), the number of parts can be reduced, and the assembling property can be improved accordingly, contributing to cost reduction.

In the above embodiment, the shaft 24 of the fan 21 is connected to the rotary drum 4
Since the position of the intake port 26 of the casing 18 is relatively displaced upward relative to the rotation axis 6 of the casing 18, the height from the water surface of the washing water in the tub 2 to the intake port 26 is increased. It can be sufficiently secured, and the inflow of washing water from the intake port 26 into the casing 18 can be prevented as much as possible.

The present invention is not limited to the above embodiment, and various modifications are possible, for example, the rotary drum 4 and the fan 21 may be driven by separate motors.

[Effects of the Invention] As is apparent from the above description, the present invention forms the side wall portion of the trough on the fan device side with plastic, and the plastic side wall portion forms the surrounding wall portion that constitutes the peripheral wall of the casing of the fan device. Unlike the conventional structure, the screw does not need to penetrate the side wall of the trough to stop the casing, and the problem of water leakage due to the penetration of the screw can be solved. Moreover, the number of parts can be reduced by integrating the side wall portion of the trough and the peripheral wall (surrounding wall portion) of the casing, and the assembling property can be improved correspondingly, contributing to cost reduction.

[Brief description of drawings]

The drawings show an embodiment of the present invention. FIG. 1 is an enlarged vertical front view of a main part, FIG. 2 is an overall vertical front view, and FIG. 3 is a right side view of the same. In the drawings, 2 is a trough, 4 is a rotary drum, 9 is a motor, 10 is a speed reduction mechanism, 16 is a clutch mechanism, 17 is a fan device, 18 is a casing, 21 is a fan, 22 is a wall portion, 23 is a cover, and 32 is a It is a heater.

Claims (1)

[Claims] 1. A tub capable of storing water, a rotary drum rotatably provided in the tub for washing and dewatering clothes inside by the rotation, and agitating during a drying operation, and a tub on one side of the tub. A fan device which is provided and blows air into the rotary drum during the drying operation to dry the clothes. The side wall of the trough on the fan device side is made of plastic, and the side wall made of plastic is used. A drum type washer / dryer characterized in that a surrounding wall portion which constitutes a peripheral wall of the casing of the fan device is integrally formed in the portion.