JPS5820237Y2 - drum type clothes dryer - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement of a drum-type clothes dryer equipped with a hot air generator.

The first dryer of this kind, which is the target of the improvement of the present invention,
The diagram will be explained.

1 is the top plate, 2 is the bottom plate, 3 is the front plate, 4 is the back plate, and these 1
4 forms the outer frame of the main body.

The bottom plate 2 is provided with legs 5, and the back plate 4 is provided with an exhaust port 6.

The periphery of the front opening (clothes slot) of the front plate 3 forms a horizontal flange 7, which is press-fitted into a U-shaped groove of a window backing 8 made of an elastic material and having a ring-shaped cross section and a U-shaped ring.

10 is an opening/closing lid with an ear piece 9 protruding from the front of the window backing 8
It is in elastic pressure contact with the other.

11 is a front plate having a clothes input port 12 in the center, and a bottom plate 2.
is fixed.

Reference numeral 13 denotes a rotating drum. A front flange 14 provided around the front opening of the drum is rotatably supported by the front plate 11. Inside the drum, there is a baffle 15 for stirring the clothes, and at the rear there is a baffle 15 for reinforcement. A frame 16 is provided.

A fan case 17 is fixed to the back plate 4, and supports the rotating drum 13 with a support shaft 18.

19 is a fan 20 housed in the fan case 17
and a motor that drives the rotating drum 13, 21 and 22 a driving belt, and 23 an electric heater.

24 is a hot air suction port provided around the clothes input port on the front side of the rotating drum 13.

Clothes are placed inside the rotating drum 13, and the electric heater 23
When electricity is applied to drive the motor 19, the rotating drum 13 rotates while stirring the loaded clothes with the baffle 15, and the fan 20 sucks the air inside the rotating drum 13 to the exhaust port 6.
discharge from.

Therefore, air sucked into the rotating drum 13 through the vents 25 and 26 provided in the front plate 3 and the front plate 11 is heated by the electric heater 23 to become hot air, which is then supplied from the suction port 24.

By the way, in the conventional dryer described above, the front flange 14 of the rotary drum 13 is rotatably supported by the front plate 11 fixed to the bottom plate 2, so as shown in the opening of FIG. 14, it is necessary to provide a gap t to avoid friction.

Therefore, outside air is directly sucked through this gap t, reducing thermal efficiency, and buttons of drying clothes may get caught in this gap t, causing trouble in the rotation of the drum.

Note that in order to prevent direct intake of outside air, a sealing member may be provided between the main body front plate 3 and the front plate 11, but the gap t
is necessary to avoid friction, and the limit is about 2 mm if manufacturing variations are taken into account.

Further, the window backing 8 repeatedly expands and contracts due to hot air during operation, loses its elasticity over time, and becomes susceptible to falling off.

The present invention aims to solve the above problems.

An embodiment of the invention will be described with reference to FIG.

1 is the top plate, 2 is the bottom plate, 3 is the front plate, 4 is the back plate, and these 1
4 forms the outer frame of the main body.

5 is a leg, 6 is an exhaust port, and 7 is a horizontal flange formed around the front opening of the front plate 3.

Reference numeral 8 is a window backing formed of an elastic material into a ring shape with a U-shaped cross section, and has a U-shaped lug 9 at the tip, and the horizontal flange 7 is press-fitted into the U-shaped groove.

Reference numeral 10 denotes an opening/closing lid attached to the front plate 3, which elastically presses against the ear pieces 9.

Reference numeral 11 denotes a donut-shaped front plate having a clothes input port 12 in the center, the inner flange 11 a of which fits closely on the outside of the window backing 8 , and the outer flange 11 b connected to the front flange 14 of the rotating drum 13 via a bearing 27 . is supported.

This front plate 11 is supported on the main body front plate 3 by a support member 28 made of an electrically insulating material.

15 is a baffle for stirring clothes provided inside the rotating drum 13; 16 is a rear reinforcing frame; 17 is a fan case fixed to the back plate 4; 18 is a support shaft for the rotating drum 13;
9 is a motor, 20 is a fan, and 21 and 22 are driving belts.

Reference numeral 29 denotes an electric heating element made of a semiconductor element having a positive resistance-temperature characteristic, which is attached to the front plate 11 via an insulating stand 30.

31 is a filter having a filter cover 32, which is removably fitted into the front plate 3 in front of the electric heating element 29;
These 29, 30, 31, and 32 constitute a hot air generator.

33 is a large number of hot air suction ports provided on the front plate 11.

As described above, the clothes dryer of the present invention includes a rotating drum 13 that is rotatably supported inside the outer frame of the main body, and an openable/closable lid 1 that allows drying clothes to be taken in and out of the rotating drum.
0, and a hot air generator (electric heating element 29, insulating stand 30, filter 31.
A drum-type clothes dryer equipped with a filter cover 32) is provided with a donut-shaped front plate 11 having a clothes input port 12 in the center and a large number of hot air suction ports 33 around the outer flange 11b. The rotating drum 13
The horizontal flange 7 formed around the front opening of the main body front plate 3 forming the outer frame is supported by an elastic material having a U-shaped cross section and a tab 9 at the tip. The inner flange 11a of the front plate 11 is pressed into the U-shaped groove of the window backing 8 made of
This front plate 11 is supported by the main body front plate 3 by a support member 28 which is closely fitted to the outside of the window backing 8 and is made of an electrically insulating material.
Since it has a structure in which it is elastically pressed against the surface, it has the following effects.

(1) The rotating drum 13 is connected to the outer flange 11 of the front plate 11.
b, and the front plate 11 has its internal flange 11a in close contact with the window backing 8 provided on the horizontal flange 7 of the main body front plate 3, so that the concentric precision of the rotating drum 13 is improved and the It reduces surface runout and has sufficient strength to withstand radial loads, allowing stable rotation.

(2) Since the inner flange 11a of the front plate 11 is tightly fitted into the window backing 8, there is no gap t in the conventional example shown in FIG.

Therefore, the above-mentioned problems caused by the gap t (decreased thermal efficiency due to direct intake of outside air, catching of drying clothes,
(falling off of the window backing 8, etc.), and the purpose of the invention is achieved.

(3) The front plate 11 is supported by the main body front plate 3 by a support 28 made of an electrically insulating material, and the electric heating element 2
Since the electric heating element 9 is supported by the front plate 11 via the insulating stand 30, the electric heating element 29 is doubly insulated from the outer frame of the main body, improving electrical safety.

(4) Airtightness around the front opening of the front plate 11 can be sufficiently maintained without using any sealing material other than the window backing 8.

[Brief explanation of the drawing]

Figure 1: A diagram showing a conventional clothes dryer, where A is a vertical cross-sectional view;
The opening is an enlarged view of circle A. Figure 2: A longitudinal sectional view of an embodiment of the clothes dryer of the present invention. Symbols 1...Top plate, 2...Bottom plate, 3.
...Front board, 4...Back board, 5...
Legs, 6...Exhaust port, 7...Horizontal flange, 8...Window backing, 9...Ear piece, 10...Opening/closing Lid, 11...Front plate,
11a...Inner flange, 11b...
・Outer flange, 12... Clothing slot, 13.
... Rotating drum, 14 ... Front flange, 15 ... Baffle, 16 ... Frame, 17 ... Fan case, 18 ... ...
Support shaft, 19...Motor, 20...Fan, 21, 22...Belt, 27...
・Bearing, 28...Support, 29...Electric heating element, 30...Insulation stand, 31...
Filter, 32...Filter cover, 33...
...Hot air inlet.

Claims (1)

[Scope of utility model registration request] A rotating drum rotatably supported inside the main body outer frame,
A drum-type clothes dryer includes a lid that can be opened and closed for putting dry clothes in and out of the rotating drum, and a hot air generator that supplies hot air into the rotating drum, and has a clothes input port in the center. , a donut-shaped front plate having a large number of hot air suction ports around the periphery is provided, and the front flange of the rotating drum is rotatably supported by the outer flange of the donut-shaped front plate, and the front opening of the front plate forming the outer frame of the main body is A horizontal flange formed around the periphery is press-fitted into a U-shaped groove of a window backing made of an elastic material having a U-shaped cross section and a tab at the tip, and the inner flange of the front plate is tightly fitted to the outside of this window backing. A drum-type clothes dryer characterized in that the front plate is supported by the main body front plate by a support made of an electrically insulating material, and the opening/closing lid is elastically pressed against the tab of the window backing. .