JPS6217037Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION This invention relates to a clothes dryer, and particularly to a drum-type clothes dryer in which clothes to be dried are placed in a rotatable drum.

Conventional drum-type clothes dryers, for example,
As shown in Japanese Patent Laid-open No. 30476 and Japanese Patent Application Laid-Open No. 53-34165, the fan casing located at the rear of the drum is constructed by combining two plates, and the drum is attached to the front plate of the fan casing. In addition to installing a bearing that rotatably supports the rear end,
Because the structure is such that the rear plate of the fan casing is fixed to the support plate or back plate that spans the rear opening of the outer box, the weight of the drum and assembly errors may cause the gap between the front and rear plates that make up the fan casing to deteriorate. If misalignment occurs, or misalignment occurs between the fan casing and the support plate or back plate that attaches the fan casing to the outer box, the axis of rotation of the drum relative to the outer box body will shift, making it impossible to rotate smoothly. There was a fear that it would disappear. For this reason, particular precision was required in the manufacture of the fan casing, and great care was also required in its assembly and adjustment.

This invention solves the above-mentioned conventional drawbacks, and provides a clothes dryer that has a simple structure, can be easily assembled, and has a smooth drum rotation.

A specific example of this invention will be explained in detail below with reference to the drawings. In the figure, reference numeral 1 denotes an outer box of a clothes dryer, which is box-shaped with an open rear surface, and a rear lid 2 is removably attached to cover the rear opening. In addition, a clothing slot 4 covered by a door 3 on the front can be opened and closed.
has.

Reference numeral 5 denotes a drum, which is rotatably supported by having its front opening aligned with the outer periphery of the clothes input port 4, and its shaft 6 protruding from its rear surface being fitted into bearings 7 of a support plate 17, which will be described later. The drum 5 has a large number of hot air inflow holes 8 around the front opening, and a through hole 9 in the center of the rear surface.
have each. A hot air guide plate 10 is fixed to the inner surface of the front wall of the outer box 1 facing the hot air inflow hole 8, and a seal member 11 such as felt is used to seal between the outer periphery and the drum 5. A hot air duct 12 has a built-in heater 13, one end of which communicates with the hot air guide plate 10, and the other end of which is open to the outside through an air intake port 14 on the front surface of the outer box 1. 15 is a filter that covers the intake port, and 16 is a grid-shaped filter guard that holds the filter.

Reference numeral 17 denotes a support plate that spans the rear opening of the outer box 1, and has both ends fixed to a flange 1a bent at the inner periphery of the rear opening of the outer box with screws or the like. The support plate 17 is formed by drawing a portion 17a facing the through hole 9 of the drum 5 into a bowl shape that protrudes toward the drum 5 to form the front side of the fan casing, and further has an opening 17b serving as a suction port on the front side. ing. 18
is a cover attached to the rear surface of the front part of the fan casing, and a peripheral wall 18a bent toward the support plate 17 at the outer periphery forms a spiral shape, and an exhaust port 18b protrudes rearward in a cylindrical shape at the outer end of the spiral. ,
It forms one fan casing together with the fan casing front part 17a. A centrifugal fan 19 is housed in the fan casing and is fixed to the front end of a shaft 20 rotatably supported by the cover 18. A pulley 21 is attached to the rear end of the shaft 20.
is fixed.

Reference numeral 22 denotes a sealing member such as felt, which is arranged on the rear surface of the drum 5 so as to surround the through hole 9, and its tip is slidably in contact with the outer periphery of the fan casing front part 17a. 23 is a filter that covers the through hole 9 from inside the drum 5, and 24 is a filter guard.

25 is a motor that drives the drum 5 via a pulley 26 provided at one end of its output shaft and a belt 27 placed around the outer circumference of the drum 5;
The fan 19 is driven via a belt 29 that is hung between the fan pulley 21 and the fan pulley 21. External air is taken in from the intake port 14 by the rotation of the fan 19, heated by the heater 13, and then passed through the hot air inflow hole 8 to the drum 5.
supply within. Then, the moisture released from the clothes to be dried is sucked into the fan casing through the filter 23, the through hole 9, and the opening 17b, and is discharged to the outside from the exhaust port 18b.

In the above embodiment, the spiral outer end of the cover 18 may be connected to the hot air duct 12 via a heat exchanger, and the heat exchanger may dehumidify the air coming out of the drum and return it back into the drum. There is no problem.

As described above, this idea allows the rear end of the drum to be rotatably supported on the horizontally long support plate that is attached across the rear opening of the outer box, and the fan to be rotatable relative to the rear surface of the support plate. Since the supported cover is attached and the cover and support plate form a fan casing that houses the fan, the structure is simple and it can be easily assembled by simply attaching the support plate and cover one after the other. be able to. Moreover, since the rear end of the drum is directly supported by a support plate fixed to the outer box without going through the fan casing, it is possible to minimize deviations in the axis of the drum due to assembly errors or the weight of the drum. In particular, even if the mounting position of the cover relative to the support plate is misaligned, the rotational axis of the drum will not be affected in any way, and the drum will always rotate smoothly.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal sectional view of a clothes dryer embodying this invention, FIG. 2 is a rear view with the rear cover removed, and FIG. 3 is an exploded perspective view of the support plate and cover. Explanation of symbols, 1...outer box, 5...drum, 17
...Support plate, 18...Cover, 19...Fan.

Claims (1)

[Claim for Utility Model Registration] A fan casing is provided opposite the through hole 9 on the rear surface of the drum 5 rotatably provided in the outer box 1, and the air inside the drum is pumped by rotation of a fan 19 built into the fan casing. In the suction clothes dryer, a horizontally long support plate 17 is provided at the rear opening of the outer box 1.
At the same time, the support plate 17 is installed across the bridge.
The rear end of the drum 5 is rotatably supported against the support plate 17, and the fan 19 is also supported against the rear surface of the support plate 17.
A clothes dryer characterized in that a cover 18 rotatably supported is attached, and the cover 18 and support plate 17 form a fan casing in which a fan 19 is built.