JPS6364238B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention includes a rotating drum that is rotatably disposed inside the main body, the front wall side of the rotating drum is divided into a rotating part and a fixed part, and hot air is introduced into the rotating drum from the fixed part side. A heater having a positive resistance temperature characteristic is housed in the hot air cylinder, and the hot air cylinder is made of resin. Fig. 3 shows the main parts of a conventional clothes dryer. , in which a is the main body, b is the front plate of the main body a, and c is a rotating drum rotatably disposed within the main body a.
The front wall portion of the rotating drum c includes a front wall rotating portion d that is connected to the peripheral wall of the rotating drum c, and a front wall fixing portion e that rotatably supports the inner peripheral edge of the front wall rotating portion by the outer peripheral edge. It is divided into. The front wall fixing part e is fixed to the front plate b via a mounting member, and the peripheral flange part g of the opening f of the front plate b and the front wall fixing part e
A packing j is attached to the peripheral flange part g so that the rubber packing j is interposed between the peripheral flange part i of the clothing input opening h.

Further, a hot air intake hole k is formed in the front wall fixed part e, and a hot air air cylinder m housing a heater 1 having a positive resistance temperature characteristic is communicated with this, and the air blowing operation of the fan , hot air enters the rotating drum c via the heater 1.

Here, if a heater 1 having a positive resistance-temperature characteristic is used as a heating element, the maximum temperature of this heater 1 is 200°C or less. mounting parts (not shown)
The cover member n of the input port h may be made of resin.

However, these resin members were all attached to the front wall fixing part e with screws and nuts, which resulted in poor workability and increased cost due to the large number of parts. In addition to the above-mentioned resin members, it is necessary to attach members such as a bearing member o and felt to the front wall fixing portion, and there has been a strong demand for a reduction in the number of assembly steps.

The present invention solves the above-mentioned conventional problems, and embodiments thereof will be described below. In FIGS. 1 and 2, 1 is a main body, on which a rotating metal drum 2 is rotatably arranged. The front wall portion of the rotating drum 2 includes a substantially donut-shaped front wall rotating portion 3 connected to the peripheral wall of the drum, and an inner circumferential edge of the front wall rotating portion 3 that is rotatably supported by an outer circumferential edge via a bearing 4. It is divided into a substantially donut-shaped front wall fixing part 5 that supports the main body. Reference numeral 6 denotes a clothing slot formed at the center of the front wall fixing part 5, and 7 denotes a main body front plate to which the front wall fixing part 5 is attached via a resin attachment member 8, which has an opening 9; 9
corresponds to input port 6. Reference numerals 10 and 11 indicate peripheral flange portions at the input port 6 and the opening 9.

A ring-shaped cover member 12 is made of resin and has grooves 12a and 12b into which the peripheral flange portions 10 and 11 are fitted over the entire circumference.

Reference numeral 13 indicates an intake port formed on the main body front plate 7; 14 indicates a hot air intake hole provided in the front wall fixing portion 5 so as to communicate with the intake port 13 through the inside of the hot air cylinder 15 made of resin; and 16 indicates a hot air intake port. The heating element supported by the body 15 is a semiconductor heater having positive resistance temperature characteristics.

Here, the mounting member 8, cover member 12, and hot air cylinder 15 are all made of resin, but these members are attached to the front wall fixing portion 5 by outsert molding without using screws, nuts, etc. It is integrated.

A lid 17 opens and closes the opening 9, and has an outside air intake port 18 facing the intake port 13. 19 is a filter.

The rotary drum 2 has a large number of ventilation holes 21 in an inner recess 20 formed by protruding the center of the rear wall outward, and a filter 2 is provided in the recess 20.
2 and a filter cover 23 are detachably attached. Further, a fan case 25 with a built-in fan 24 is provided behind the rotating drum 2, and the fan 24 is connected to the rotating shaft 27 of the motor 26 via a belt.
are connected. Reference numeral 28 denotes an exhaust air barrel that communicates with the fan case 25. Further, the rotating shaft 27 of the motor 26 is provided with a drum pulley 30 for connecting the rotating drum 2 via a drum belt 29. 31 is a door punching.

According to the above configuration, by the rotation of the motor 26,
The rotating drum 2 and the fan 24 rotate, whereby hot air enters the rotating drum 2 via the outside air inlet 18, the filter 19, the heating element 16, and the hot air intake hole 14. Used for drying clothes. As a result, the humid air passes through the filter 22 and the fan 2
4. Exit the aircraft via the exhaust wind barrel 28.

Here, the cover member 12 that covers the peripheral flange 11 of the opening 9 of the main body front plate 7 and the peripheral flange 10 of the inlet 6, the mounting member 8, and the hot air cylinder 15 are all made of resin. teeth,
The front wall fixing part 5 is molded and integrated with the front wall fixing part 5 by outsert, that is, the front wall fixing part 5, which is the basic structure, is inserted into a mold for resin molding and molded and integrated. The airtightness of the joint surface between the part 5 and the hot air cylinder 15 can be improved, and the mounting accuracy between the main body front plate 7 and the front wall fixing part 5 can be improved, and the number of screws and nuts used can be greatly reduced, improving workability. is good,
Costs can be reduced by reducing assembly man-hours and the number of parts. In particular, in the cover member 12,
There is no loosening of screws due to vibration, and concentricity between the input port 6 and the opening 9 can be ensured.

As described above, according to the present invention, in a configuration in which a heater with a positive resistance-temperature characteristic is used as a heating element, a hot air cylinder for accommodating the heater, a cover member covering an inlet and an opening, and a front wall fixing part are attached to the front of the main body. The three mounting parts attached to the face plate are made of resin, and these parts are integrated into the front wall fixing part by outsert molding, which greatly reduces assembly man-hours and the number of parts, and also reduces the risk of burns. It is possible to prevent the occurrence of
Furthermore, it is possible to improve the attachment accuracy between the front wall fixing part and the main body front plate, and to stabilize the concentricity between the opening and the input port.

[Brief explanation of drawings]

FIG. 1 is a longitudinal cross-sectional view of a clothes dryer according to an embodiment of the present invention, FIG. 2 is an enlarged cross-sectional view of the main parts thereof, and FIG. 3 is an enlarged cross-sectional view of the conventional main parts. DESCRIPTION OF SYMBOLS 1...Main body, 2...Rotating drum, 3...Front wall rotation part, 5...Front wall fixing part, 6...Inlet port, 7...
Main body front plate, 8...Mounting member, 9...Opening, 1
0, 11...Peripheral flange portion, 12...Cover member, 14...Hot air intake hole, 15...Hot air air cylinder, 1
6...Heater.

Claims (1)

[Claims] 1 A rotating drum rotatably disposed within a main body, and a means for supplying hot air into the rotating drum, which is equipped with a fan and a heater having positive resistance temperature characteristics, and a front wall of the rotating drum is connected to a peripheral wall. The front wall fixing part is divided into a continuous approximately donut-shaped front wall rotating part and a substantially donut-shaped front wall fixing part in which the inner circumferential edge of the front wall rotating part is rotatably supported by the outer circumferential edge. An input port corresponding to the opening in the front panel of the main body is formed in the center of the front wall, and the outer periphery of this front wall fixing part is fixed to the front panel of the main unit located in front of it via a resin mounting member to fix the front wall. A resin cover member is provided to cover the peripheral flange of the central inlet and the front plate opening of the main body, and the resin hot air cylinder housing the heater is attached to the front wall without the mounting member. A clothes dryer, in which the cover member and the hot air cylinder are integrated into the front wall fixing part by outsert molding so as to communicate with a hot air intake hole provided on the outer periphery of the fixing part.