JPH0221032Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a drum-type clothes dryer, and particularly to an improvement in the attachment/detachment structure of a lint filter for removing lint generated during drying.

The lint filter in conventional drum-type clothes dryers was installed inside the drum, making it difficult to see and difficult to install and remove. Also,
It is impossible to put on or take off the product with clothes inside, and if you want to remove lint during the drying process, you have to open the door each time, take out the cloth, and then remove the filter. The structure was unwieldy for what was needed.

However, there is a method proposed in Japanese Utility Model Publication No. 47-8921 to improve these conventional drawbacks. This places the path between the air exhaust vent and the blower fan that exhausts the air in the rotating drum close to the front of the cabinet, and
A filter attachment/detachment opening that communicates the passage with the outside is provided on the front of the cabinet, separate from the clothes insertion opening, and a lint filter with a lid is removably attached to the filter attachment/detachment opening. be. In such a clothes dryer, the drawbacks of the conventional clothes dryer can be improved in that the lint filter can be attached and detached without opening the door for opening and closing the rotating drum.

However, in the case of the one proposed in Japanese Utility Model Publication No. 47-8921, the lint filter can be taken out without opening the door.
This means that the lint filter can be removed even while the clothes dryer is operating. If you remove the lint filter while the clothes dryer is running in this way, the opening for attaching and removing the filter will be open after the lint filter is removed, so do not put your hand in the opening for attaching or removing the filter. Doing so may cause burns from contact with the high-temperature exhaust air, or injury from contact with the ventilation fan installed inside the path.

In view of the above points, the present invention has been developed to allow the lint filter to be safely attached and detached. Furthermore, consideration has been given to minimizing the cost increase required to obtain this safety.

To this end, the present invention includes a rotating drum having an air intake vent, an air exhaust vent, and a clothes inlet, and a clothes inlet opening facing the clothes inlet in the front of the rotating drum, which is rotatably installed inside the rotating drum. a door for opening and closing the clothing input opening; a blower fan for distributing air from the air intake vent to the air exhaust vent in the rotating drum; the rotating drum; An electric motor that rotates the blower fan, and a lint filter provided in a path between the blower fan and the air exhaust vent, and a cabinet that connects the path between the air exhaust hole and the blower fan. A filter attachment/detachment opening is provided on the front surface of the cabinet, which is disposed close to the front surface and communicates the path with the outside, and the filter attachment/detachment opening is provided with a lid for opening/closing the filter attachment/detachment opening. In a clothes dryer in which the lint filter is removably attached to the path adjacent to the filter attachment/detaching opening, the clothes loading opening and the filter attachment/detachment opening are provided in close proximity to each other on the front surface of the cabinet. , a safety switch is provided with an operating rod disposed between the clothing insertion opening and the filter attachment/removal opening; The safety switch is operated by closing the door and lid, and the safety switch does not turn on electricity to the electric motor when the safety switch is operated by the operating rod. The safety switch is electrically connected so as to cut off the power supply to the motor when the safety switch is not operated by the operating lever.

The operation of the safety switch in this case is, for example, when a button provided on the safety switch is pressed, the contact is turned ON, and when the button is protruded, the contact is turned OFF. It can also be set so that when the button protrudes, the contact turns on, and when the button is pressed, it turns off.

With the above configuration, the safety switch is operated by the operation lever and the electric motor is not energized only when both the opening for putting in clothes and the opening for attaching and removing the filter are closed by the door and lid. The clothes dryer will be operated.
When either the door or the lid is opened, the safety switch is not operated by the operating lever, so power to the motor is cut off and the clothes dryer is stopped. Therefore, even if either the clothing input opening or the lint filter attachment/detachment opening is opened, the rotating drum and the blower fan are stopped and there is no high-temperature air flow.

The safety switch mentioned above is operated by an operating rod located between the opening for putting in clothes and the opening for putting on and taking off the filter, so it is necessary to provide a safety switch for each opening for putting in clothes and the opening for putting on and taking off the filter. There is no.

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

Fig. 1 is a front view of a clothes dryer which is an embodiment of the present invention, Fig. 2 is a side sectional view of the same clothes dryer, and Fig. 3 is a side sectional view of the clothes dryer.
The figure is a perspective view of the clothes dryer, FIGS. 4a, b, and c are mechanical diagrams of the safety switch in the clothes dryer, and FIG. 5 is a basic circuit diagram of the clothes dryer.

First, in FIGS. 1 and 2, reference numeral 1 denotes a cabinet which has an opening 2 for throwing in clothes at the center of the front side, and a front cover 3 having a U-shaped cross section at the periphery of the opening on the inside. is fixed, and a sealing felt 4 is attached to the outer flange of the front cover 3.
A bearing material 5 is attached to the inner peripheral flange portion. Reference numeral 6 denotes a rotating drum, which has a clothes input port 7 at the center of its front surface, and a front wall having ventilation holes 8 on its outer peripheral wall, which faces the front cover 3 and is connected to an exhaust side path 9.
It is rotatably supported by the bearing material 5 to form a. On the other hand, the rear part of the rotary drum 6 has a ventilation hole 10 around it, and a rear wall 12 having a support shaft 11 fixed to the center thereof. A rear cover 13 is provided to face the rear wall 12 of the rotary drum 6 and form an intake passage 14, and has a seal felt 15 on the outer flange and a bearing 16 in the center.
It is rotatably fitted to the support shaft 11. Further, a part of the rear cover 13 has an opening 17, and a heater case 19, which houses a heating element 18 inside, is engaged with the opening 17 to form an intake passage 14. . On the other hand, a part of the front cover 3 has an opening, which engages with the opening to form a path 20 communicating with the exhaust side path 9, and the rear wall of this path 20 has an opening 21. And this opening 2
1 has a lint filter 22 removably attached to it from the front. On the other hand, an opening 23, which is slightly larger than the opening 21, is provided in the front wall of the passage 20 so as to face the opening 21 on the same axis as the opening 23, which also penetrates the front surface of the cabinet 1. 2
4 is an electric motor, and a drum pulley 2 is attached to one of the rotating shafts.
5, and a rotary drum 6 is rotated via a drum belt 26. On the other hand, a blower fan 27 is directly connected to the other shaft of the electric motor 24, and its surroundings are surrounded by a fan case 28 to form a path.
An opening facing the suction side of the fan 27 is formed in the opening, which communicates with an opening 21 provided in the rear wall of the exhaust passage 20 . Further, an air discharge port (not shown) is provided in the circumferential direction of the fan case 28 and communicates with the exhaust duct 29.

30 is a door that covers the clothes input port 2; 31;
The opening 23 for attaching and detaching the lint filter is covered with a cover, both of which are provided close to each other on the front surface of the cabinet 1, and can be opened and closed by pivoting on one side as shown in FIG. Reference numeral 32 designates a safety switch, which is provided with operating rods 33 and 33' on the same switch so as to engage in opening and closing of both the door 30 and the lid 31, so that it can be used in common. Although there is no problem in providing the safety switch 32 separately for the door 30 and the lid 31, it is more advantageous to share the safety switch 32 in terms of cost. Furthermore, although various structures are conceivable for the structure of the safety switch 32, the basic structure is as shown in FIG.
In FIG. 4, a shows the door 30 closed, the lid 31 open and the switch 32 in the OFF state, b the opposite state to a, and C the door 30 and lid 31 both properly set and closed. At this time, the safety switch 32 is turned ON for the first time, and the entire circuit shown in FIG. 5 becomes energized and starts operating.

34 is a timer knob for operating a time switch (not shown), and 35 is an intake film section.

Next, the operation and operation of the clothes dryer having the above structure will be explained.

When the clothes are put in, the door 30 and the lid 31 are set, and the timer is wound, the electric motor 24 rotates, the rotary drum 6 and the blower fan 27 rotate, and the drying operation begins. First, the rotation of the blower fan 27 creates a flow in the air in the path, and the outside air enters the cabinet 1 through the intake filter section 35, recovers heat within the cabinet 1, and at the same time enters the intake side path 14.
The humid air is heated by the heating element 18, enters the rotating drum 6, absorbs moisture from clothing, enters the exhaust side path 20 with lint, passes through the fan case 28, and exits the exhaust duct 29. Get out of the plane. At this time, the lint is accumulated on the lint filter 22 provided in the exhaust path 20. The lint filter 22 can be attached and detached by opening the lid 31 provided on the front side of the cabinet 1 and through the opening 23 on the front side of the cabinet 1. When the lid 31 is opened, the safety switch 32 is turned OFF, so it can be installed safely. Can do work.

When the electricity is turned on and off by opening and closing the lid 31 covering the opening 23 for taking in and taking out the lint filter 22 as in the above embodiment, the lint filter 22 can be attached and removed safely. In addition, electricity is supplied by opening and closing the lid 31 that covers the opening 23 for putting in and taking out the lint filter 22 provided in the exhaust side path 20.
The electricity is turned on and off by opening and closing the safety switch that turns it on and off and the door 30 that covers the clothes input opening 2.
This can be achieved without increasing costs by sharing the safety switch that turns it off.

As described above, according to the present invention, the electric motor is energized to operate the clothes dryer only when both the clothes loading opening and the filter attachment/removal opening are closed by the door and the lid. Or, if either of the lids is opened, the electricity to the motor is cut off and the clothes dryer is stopped. The blower fan is completely stopped, so you won't get hurt even if you stick your hand into the rotating drum or path, and since the blower fan is stopped, there is no air flow, so there is no risk of getting burned.

Further, since the safety switch can be used for both the door and the lid, and only one switch is required, the cost increase due to the installation of the safety switch can be minimized.

[Brief explanation of the drawing]

Fig. 1 is a front view of a clothes dryer which is an embodiment of the present invention, Fig. 2 is a side sectional view of the same clothes dryer, and Fig. 3 is a side sectional view of the clothes dryer.
The figure is a perspective view of the clothes dryer, FIGS. 4a, b, and c are mechanical diagrams of the safety switch in the clothes dryer, and FIG. 5 is a basic circuit diagram of the clothes dryer. 1: Cabinet, 2: Clothes insertion opening,
6: Rotating drum, 7: Clothes inlet, 8, 10: Ventilation hole, 9, 20: Exhaust side path, 14: Intake side path, 18: Heating element, 22: Lint filter, 2
3: opening, 24: electric motor, 26: belt, 2
7: Ventilation fan, 30: Door, 31: Lid.

Claims (1)

[Scope of Claim for Utility Model Registration] A rotating drum having an air intake vent, an air exhaust vent, and a clothes inlet, and a clothes inlet with the rotary drum rotatably mounted on the front facing the clothes inlet. A cabinet having an opening, a door for opening and closing the clothing loading opening, a blower fan for circulating air from the air intake vent to the air exhaust vent in the rotating drum, and the rotating drum. and an electric motor for rotating the blower fan, and a lint filter provided in a path between the blower fan and the air exhaust vent, A filter attachment/detachment opening is provided on the front surface of the cabinet, which is disposed close to the front surface of the cabinet and communicates the path with the outside, and a lid is provided on the filter attachment/detachment opening to open and close the filter attachment/detachment opening. In addition, in a clothes dryer in which the lint filter is removably attached to the path adjacent to the filter attachment/detaching opening, the clothes loading opening and the filter attachment/detachment opening are provided in close proximity to each other on the front surface of the cabinet. In addition, a safety switch is provided with an operating rod disposed between the clothing insertion opening and the filter attachment/removal opening, and the operation rod of the safety switch is located between the clothing insertion opening and the filter attachment/removal opening. The safety switch is operated by closing the door and the lid, and the safety switch energizes the electric motor when the safety switch is operated by the operating rod. The clothes dryer is electrically connected to cut off power to the electric motor when the safety switch is not operated by the operating lever.