JPH06312090A - Clothes drying machine - Google Patents

Abstract

PURPOSE:To provide a clothes drying machine which does not generate string trash and high temperature air from a drum and secures the long service life and reliability. CONSTITUTION:As for a drum 13 supported in a turnable manner in a machine frame 1, a fitting part 42 which is formed by projectingly installing a plurality of ribs 41 on the outer peripheral part on the front surface opened port side is installed, and on the outer periphery of a drum front surface plate 14, a fitted part 45 is formed, and then fitting-fixed in the gap between the ribs 41. Since the fitting part is complicated, the high temperature air, thread trash, etc., are rejected and workability is improved because of the fitting assembly.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a clothes dryer for heating and drying clothes in a rotating drum.

[0002]

2. Description of the Related Art The basic structure of a clothes dryer is, for example, as disclosed in Japanese Patent Publication No. 61-41239, a dehumidifying clothes dryer, in which a drum into which clothes are put is rotatable. A circulating fan and a heater are arranged in a circulating air passage communicating with the drum, a hot air inlet of the front part, and a hot air outlet of the rear part, and dry air enters the drum rotated by a motor. It comes out and circulates to dry clothes.

Here, the drum is a resin-formed integral body having a front surface opened and a large number of through holes or slit-shaped hot air outlets formed on the rear surface, and the front surface opening of the drum is defined by the drum support plate and the drum. The drum front plate is attached to the opening edge of the front face and is closed by the drum front plate rotatably fitted to the drum support plate. In this case, the drum and the front plate of the drum are joined and fixed by screws at several places.

[0004]

However, with such a structure, a gap is easily formed in a place where the screw is not fixed,
There is a drawback that hot dry air and lint and the like discharged from clothes flow into the main body from the place and adversely affect other mechanical parts. In addition, it had a bad assembling property that it was fastened with screws.

The present invention has been made in view of the above problems, and provides a drum having a structure in which high temperature dry air and lint do not flow into the main body through the gap between the drum and the front plate of the drum.
An object of the present invention is to provide a clothes dryer which has a long life, maintains high reliability, and is easy to assemble.

[0006]

SUMMARY OF THE INVENTION According to the present invention, a machine frame having a clothes insertion port formed on the front surface thereof is rotatably mounted on the machine frame, and an opening facing the clothes insertion port is provided on a drum front plate. In a clothes dryer having a drum having a dry air outlet formed on the rear surface thereof, a plurality of fitting portions made of a plurality of protruding ribs are provided at a front end of an outer peripheral portion of the drum while the front portion of the drum is provided. The outer peripheral edge of the face plate is formed with a fitted portion for fitting between the ribs of the fitting portion to fix the drum front plate to the drum.

[0007]

The function of fitting the fitted parts projecting on the outer peripheral edge on the drum front plate side into the plurality of fitting parts formed of the plurality of projecting ribs provided on the front end of the drum outer peripheral part The front plate of the drum is fixed to the front of the drum by the assembly method. Therefore, with this structure, the high temperature air and the lint cannot go into the main body unless they pass through the gaps at several places between the plurality of ribs, and the failure is reduced. Further, if a plurality of places are fitted, the drum front plate is closely attached and fixed, and the assembling can be easily performed.

[0008]

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

1 is a machine frame of the clothes dryer 2, and the machine frame 1
A clothing insertion port 3 is formed on the front surface of the. 4 is machine frame 1
The rear plate is fixed to the rear surface of the rear plate, and an external air introduction hole 5 is provided in the center of the rear plate, and an external air outlet port 6 for the external air introduced is provided in the lower portion of the machine frame 1. 7 is a door that opens and closes the clothes inlet 3, and clothes are inserted into a rotatable drum which will be described later by opening and closing the door 7. The machine frame 1 is provided with an annular sheet metal drum support plate 8 that is attached so as to surround the clothes inlet 7 and rotatably supports the drum.

On the other hand, in the rear part of the machine frame 1, a support plate 9 is provided on the inner side of the machine frame 1 so as to extend laterally so as to be spaced from the rear plate 5, and the rear end of the support plate 9 is the rear plate. A fan casing 10 that is fixed in contact with 5 is mounted, and the inside of the machine frame 1 is divided into a drying chamber 11 and a fan chamber 12 by the fan casing 10 and the support plate 9. Reference numeral 13 denotes a horizontal axis type synthetic resin drum disposed in the machine frame 1, that is, in the drying chamber 12, and the front opening of the synthetic resin drum is made to face the clothes insertion port 3 so that the drum support plate 8 is felted. The rear surface side is rotatably supported by the shaft 15.

Here, the member rotatably supported by the drum support plate 8 is a drum front plate 14 made of sheet metal and formed at the front end of the outer peripheral portion of the drum 13. The present invention relates to a mounting structure of the drum front plate 14 and the drum 13,
Details will be described later.

A dry air outlet 16 is formed at the center of the rear surface of the drum 13, and a lint filter 17 is arranged in front of it to cover the outlet 16. On the other hand, a dry air inlet 18 is formed in the lower part of the support plate 9 so that the dry air is taken in from the front side of the drum 13.

The support plate 9 is provided with a communication port 19 for communicating the drying chamber 11 and the fan chamber 12 with each other, and the drying air outlet 1
The air blown from 6 passes through this communication port 19 and through the drying duct described later from the dry air inlet 18 to the drum 13
Get in Reference numeral 20 is a seal member for reliably sending the air from the dry air outlet 16 to the communication port 19.

Inside the fan chamber 12, there is provided a double-sided fan 21 made of synthetic resin, which is rotatably supported by a metal via a rear portion of the shaft 15. The double-sided fan 21 is a circulation fan 22 located on the drying chamber 11 side.
And the cooling fan 23 located on the rear surface side are radially formed integrally with each other on the front and back sides.
A pulley 24 is provided at the center of the third side.

Reference numeral 25 denotes a partition plate made of synthetic resin, which is provided in the fan casing 10 so as to surround the double-sided fan 21, and the double-sided fan 21 is housed in a circular opening in the center of the partition plate 25. The partition plate 25 and the double-sided fan 21 cooperate to divide the inside of the fan chamber 10 into a drying air passage 26 and a cooling air passage 27.

Now, on the peripheral edge of the double-sided fan 21, there are concentric groups of rotary grooves 28 that open toward the dry air passage 26.
Are integrally formed, while the inner peripheral edge of the partition plate 25 is
Concentric fixed groove group 2 opening toward the cooling air passage 27
9 are integrally formed, and the rotary groove group 28 is loosely fitted in the fixed groove group 29 in a non-contact state with each other.
That is, the rotary groove group 28 and the fixed groove group 29 form a labyrinth connection.

Reference numeral 30 denotes a drying duct that connects the lower portion of the drying air passage 26 and the drying air inlet 18, and a heater 31 is provided inside.

Reference numeral 32 denotes a lowermost portion of the duct 30, an outlet for discharging dehumidified water condensed in the duct to the outside of the machine, 33 a drive motor, the pulley 24 having a small pulley 34 and a belt 35. It is also connected to the drum 13 via a pulley 35 and a belt 37.

Next, the structure of the drum 13 and the drum front plate 14 provided on the front surface of the drum 13, which is a characteristic part of the present invention, will be described.

At the front end of the outer peripheral portion of the drum 13, there are integrally provided a plurality of fitting portions 42 each including a plurality of ribs 41 protruding outward as shown in FIG. An engaging projection 43 is formed on the outer surface of the central rib 41 of the three ribs 41 arranged vertically. On the other hand, the drum front plate 14 is provided on the outer peripheral edge of the drum in a protruding shape, fits between the ribs 41 of the fitting portion 42, and engages with the engaging projection 43. Locking hole 44
A plurality of fitted parts 45 having the above are integrally formed.

Therefore, at the time of assembly, the fitted portion 45 of the drum front plate 14 is aligned with the fitting portion 42 on the drum 13 side, and the drum front plate 14 is assembled so as to cover the front opening of the drum 13. The fitting portion 45 enters the groove portion 46 between the ribs 41 of the fitting portion 42 and above the rib 41, and the engaging projection 43 is caught in the engaging hole 44, so that the both are more firmly and closely attached. And it is easily combined and fixed.

The clothes dryer starts the drying operation by supplying power to the heater 31 and the drive motor 33.

Air inside the machine circulates between the drum 13, the fan casing 10 and the drying duct 30, and the dry air heated by the heater 31 is fed from the dry air inlet 18 to the drum 1.
3, the clothes are dried and absorbed, and the lint and the like discharged from the clothes are removed by the lint filter 17, moved in the order of dry air outlet 16-communication port 19-fan casing 10, and cooled by the double-sided fan 21. The discharged moisture is discharged as a drain from the discharge port 32, returned to the heater 31, and circulated thereafter. On the other hand, the double-sided fan 21 sucks the outside air from the inlet 5, exchanges heat, and discharges the outside air from the outlet 6.

Here, in order that the lint floating in the drum 13 without being removed by the high temperature air or the lint filter 17 goes out of the drum 13, there are a plurality of dross existing in the fixing portion between the drum front plate 14 and the drum 13. Since it passes through a complicated bottleneck provided by the ribs 41, it is difficult to flow out, so that other mechanical parts in the main body are exposed to high temperature air, lint is attached, It can prevent normal operation, loss of function and failure.

[0025]

As described above, according to the present invention, the drum and the front plate of the drum are coupled to each other by fitting the outer periphery of the front plate of the drum to the fitting portion formed by a plurality of ribs formed at the front end of the outer peripheral portion of the drum. Since the fitting part is fitted tightly, both can be fixed without a gap.

Since the joint portion has a complicated joint surface due to the presence of the ribs, high temperature air and lint discharged from the drum do not flow into the main body, the life is long, and the clothes can be dried with high reliability. Machine can provide.

Further, since the front plate of the drum and the drum are of a fitting type, the assembling work is facilitated and mass productivity can be achieved.

[Brief description of drawings]

FIG. 1 is a side sectional view of a clothes dryer according to the present invention.

FIG. 2 is a sectional side view of a main structure of a mounting portion of a drum and a drum front plate.

[Explanation of symbols]

 1 Machine Frame 2 Clothing Inlet 8 Drum Support Plate 13 Drum 14 Drum Front Plate 41 Rib 42 Fitting Part 45 Fitted Part

Claims (1)

[Claims] 1. A machine frame having a clothing insertion opening formed on the front surface thereof,
A clothes dryer, which is rotatably mounted on the machine frame, has a drum front plate having an opening facing the clothes inlet, and a drying air outlet formed on the rear surface of the drum dryer. A plurality of fitting portions formed by a plurality of protruding ribs are provided at the front end of the drum, while the outer peripheral edge of the drum front plate is fitted between the ribs of the fitting portions to attach the drum front plate to the drum. A clothes dryer, which is characterized in that a fitted portion to be fixed to is formed.