JPS58177694A - Electric dryer - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an electric dryer that dries clothes by rotationally driving a drum. This relates to improvement of a specific configuration for connection to the outside of the machine.6 Hereinafter, an embodiment of the present invention will be described based on the accompanying drawings. In the figure, a box 1 constitutes the outer case of the dryer, and is composed of a side wall 1' and a front plate 2 provided on the front side thereof. 3 is a drum placed inside the box body 1 and is partially covered with a baffle plate 4.
The rear part of the body plate 6 is shaped like a disk and has many small holes 6 for air circulation in the center, and a bearing 7 is fixed in the center of the body plate 6. The front part is sandwiched between a disk 10 having a circular opening with seven flange 9 in the center, and the body plate 6 is fixed by caulking or the like between the circular base plate 8 and the outer periphery of the disk 1o. . The drum 3 is mounted on a shaft 12 fixed near the center of a support plate 11 provided on the rear surface of the box 1 so as to connect the diagonals of the box, and with a bearing 7 fixed at the center of a circular base plate 8. It is supported.

Further, a bearing material 14 having good wear resistance and a small coefficient of friction is attached and fixed to the inner surface of the seven flange portions 9 of the disk 1o at the front of the drum 3 so as to be able to slide. A front support plate 16 having a slidable outer diameter is pivotally supported on the inner diameter of this bearing material 14 . The front support plate 16 is fixed to the front plate 2 via a block 16 and a heater plate 18 having a heater 17 fixedly supported therein, and the drum 3 is rotatably supported within the box body 1. and p) the shaft 2 of the motor 20 fixed to the motor support plate 19 fixedly supported on the bottom surface of 1q1'.
The drum 3 is rotationally driven by a belt 24 that is wound around a drum pulley 22 fixed to one side of the drum 1 and the outer periphery of the body plate 5 via a tension pulley 23.

Reference numeral 26 denotes a fan, which is fixed to the central boss portion of the impeller 30 through a bearing 29 fixed to the bearing plate 28 of the fan case 26 in a casing composed of a fan case 26 and a fan case 27. The impeller 3o is rotatably supported via a shaft 31. A pulley 32 is fixed to the other end of the fan shaft 31, and the impeller 3o is rotated by a fan belt 34, which is wound around the motor pulley 33 fixed to the other end of the shaft of the motor 2o. Yes, the box body 1 has a longitudinal direction in the lateral direction, and the drum 3 is installed offset to the right when viewed from the front of the front plate 2.

At the other upper and lower corners of the box body 1, a motor 26 is provided below and a 77 motor 25 is provided above. Also, fan case 26, 27 (7) discharge port 36 of fan 25
The opening end of the box body 1 is arranged so that it protrudes outside the machine through a hole in the top surface of the box body 1.

A chevron-shaped outer ring 36a is integrally formed on the outer circumferential surface of the discharge port 36, and an opening end of the discharge port 36 has a
Vertical and horizontal thin ribs 36 are integrally formed so as to be located in the opening. The outer ring 35a serves as a retaining portion i of the cover, which will be described later.

There is an integrally molded pin 37 on the inner surface of the fan case 26 near the discharge port 36, and a felt 38 is inserted and fixed to the pin 37. This felt 38 is designed to prevent the back surface of the disk portion 39 of the impeller 3o from being seen from the top surface of the discharge port portion 36.

This is because the lubricating oil in the oil-impregnated felt 4o provided inside the bearing 29 leaks out, and the disk portion 39 is affected by the rotation of the impeller 3o.
When it is scattered by centrifugal force along the back side of the discharge port 36
It plays the role of absorbing it so that it does not escape to the outside. Further, the felt 38 melts and crushes the head of the pin 37 to prevent it from falling off.

The above-mentioned cover 41, which is a stepped cylindrical body for attaching an exhaust duct, etc., is fitted to the outlet portion 36 of the fan 26 by engaging the claw portion 41a with the outer lip 35a of the outlet portion 35. It is.

Here, the operation of the discharge port 36 and its vicinity will be described. First, since the claw portion 41a of the cover 41 is removably engaged with the outer lip 35a of the discharge port 35, it is not possible to remove the cover 41 and connect an exhaust duct directly to the discharge port 41. It is also possible to connect a duct to the cover 41. In short, there is no need to use conventional joints to connect the exhaust duct.

Furthermore, the thin ribs 36 provided at the open end of the discharge port 36 serve to prevent foreign matter from falling into the interior of the discharge port 36 and preventing fingers or the like from accidentally entering and touching the impeller 30. It is something that you have.

And when used without installing a duct,
Even if a cover 41 having a thin lip similar to the thin rib 36 provided on the fan case 26 is not installed, the presence of the thin rib 36 will prevent the fan case 2
There is no fear that foreign matter will fall into the impeller 3o or that a finger or the like will accidentally touch the impeller 3o.

Moreover, the cover 41 is removable, and if it is removed and packed, the amount of packaging required is reduced by the height of the cover 41, and furthermore, the cost of packaging materials and transportation can be reduced.

The bearing 29 of the fan 26 is mounted on metal 4 at both ends of the case 42.
3 and metal 44 are provided, and an oil-impregnated felt 4o is provided between them.
Install the impeller 3o and pulley 32 with metal 43.44.
The fan shaft 31 is fixed to both ends of the fan shaft 31, and is fixed to the fan case 26 via a bearing plate 28 at a flange 45 at the center of the case 42. Case 42 at the same time
A cylindrical body 46 surrounding the outer periphery of the body on the pulley 32 side is fixed. An oil-impregnated felt 47 is provided in the space between the cylindrical body 46 and the body of the case 42, and is connected to the oil-impregnated felt 40 in the body by a communicating felt 49 inserted into a small hole 48 provided in the center of the case 42. It seems to be connected. Also, one end of the cylinder 46 has 7 langes 6o on the inside, and the opening of the 7 langes 50 is connected to the metal 4 on the pulley 32 side of the case 42.
Pulley 3 from the joint surface of the thrust surface of pulley 3 and pulley 32.
It protrudes toward the second side, and serves to absorb oil scattered from the joint surface into the oil-impregnated felt 47 inside the cylindrical body 46.

The front plate 2 has a square input port 62 that fits into a square window 61 provided at the center of the front support plate 16.
2 is joined with a backing 63 so as to be almost airtight.

The front plate 2 is provided with a lid 56 that is rotatably supported to open and close by a hinge 64.
The lid 66 is closed so as to cover the input port 62, and the lip 66 provided at the time difference 66 when closed is the backing 63.
The purpose is to make the inside of the drum 3 airtight by pressing against the hollow portion 67 of the drum 3. The hollow part 67 of the backing 63 has the input port 6
As shown in FIG.
Furthermore, the wall thickness t1 on the bulge 68 side is changed to the wall thickness t on the outside of the hollow part.
By forming the backing 63 thicker than 2 mm, it has the effect of preventing deformation of the shape of the hollow portion that occurs when the backing 63 is placed along the corners of the rectangular input port 62. This is to prevent deformation by improving the balance between the contraction on the inside and the expansion on the outside when bending along a corner.

An air intake port 69 is provided next to the input port 62 provided on the front plate 2, and a filter 6 is installed in a cover 60 that covers this intake port 69.
The filter cover 62 is attached to the cover 60 via a hinge so that the filter cover 62 covering the filter 61 can be freely opened and closed. On the rear surface of the intake port 69, there is a heater plate 18 sandwiched between it and the front support side 16, and a heater 17 fixed to the heater plate 18. A small hole 63 is provided so that the outside air and the inside of the drum 3 communicate through the heater 17.

Further, a filter 4 and a filter cover 66 are fitted into a cylindrical fitting part 66 integrally formed with the bearing 7 so as to cover the small hole 6 near the center of the circular base plate 8 of the drum 3. Therefore, the filter cover 66 serves to prevent dust generated from the clothes in the drum 3 from being filtered by the filter 64 and released to the outside.
This prevents it from being damaged by being rubbed by clothing.

At a position opposite to the small hole 6 of the circular substrate 8 of the support plate 11,
The air circulation hole 67 is open, and a circular seat 68 is formed around the air circulation hole 67 in the support plate 11, and a sliding backing 69 is integrally fixed thereto. This sliding backing 69 is made of a material with excellent flexibility and wear resistance, and one end of the sliding backing 69 comes into contact with a circular seat containing a small hole 6 in the center of the circular substrate 8.

Still, a box-shaped guide path 7o is formed in one direction from the circular seat 68 including the air circulation hole 67 on the support plate 8, and a sealed air guide path 7o is formed in the support plate 8 to close the guide path 70. It forms a road. The end of the guide path 70 is the inter-cylindrical lower 2, which is airtightly communicated with the suction lower 3 provided in the fan case 27 through a backing 74.

In this way, the heated air enters the air intake port 69 and the heater 17 through the filter cover 62) and the filter 61, and is sucked into the drum 3 through the small hole 63 of the front support plate 15, and is drawn into the drum 3 through the small hole 63 of the front support plate 15. The water vapor generated from the clothes passes through the filter cover 66 and the filter 64 on the rear surface of the drum 3, and further passes through the small holes 6. Guide path 7 of support plate 11
0 into the fan 25, and then discharged from the discharge port 36 to the outside of the machine, thereby performing drying.

The lid s6 is provided with a lip 78 having a circular portion 76 substantially concentric with the center of rotation of the hinge 64 and a notch 77 provided near the hinge 64 that opens and closes the lid, and a spring 79 that abuts against the surface of the lip 78. is fixed to the front plate 2, so that when the lid 55 is closed, it abuts against the lip 78 and the circular part 76, and when it is opened, it abuts against the notch 77, so that when the lid 55 is opened,
The pushing force of the spring 79 that comes into contact with the notch 77 serves as a strapper. This allows the lid 65 to be held in an open state, making it easy to take clothes in and out of the drum 3 even if the lid 56 is not pressed by hand.

Further, since the heater 17 is provided on the left side of the drum 3 when viewed from the front, the rotation direction of the drum 3 is clockwise. This is the clothing under drum 3.

As it rotates, it rotates in the direction of the heater 17 on the left side, hits the hot air blown out from the small hole 63 facing the heater 17, and is further lifted up and falls down. When this fall occurs, the filter cover 6 at the rear of the drum 3
It is further heated by the air sucked out from 6. Therefore, the heating efficiency is much better than when the drum 3 rotates counterclockwise.

As is clear from the above embodiments, the present invention includes a drum rotatably supported within a box body, a fan fixed within the box body and having an inlet port communicating with the drum, and a fan case provided in the fan case of the fan. A discharge port is made to protrude to the outside from the top surface of the box body, and an outer peripheral plate of a reservoir is provided on the outer circumferential surface of the discharge port to removably engage a cover that covers the opening of the discharge port. of.

In addition, the opening end has narrow lips located at the openings that are integrally formed with the discharge port, making it possible to connect the duct directly to the discharge port of the fan case, unlike conventional older brothers. This eliminates the need for a joint for connecting the duct, and furthermore, even if the cover is not attached, foreign matter will not fall into the fan case due to the thin lip.

In addition to preventing intrusion, there is no risk of fingers or the like accidentally touching the rotating parts of the fan, and it has an extremely simple and rational configuration in which a thin rib and an outer circumference are integrally formed at the discharge port. Excellent in terms of production.

[Brief explanation of the drawing]

Fig. 1 is a cross-sectional view of an electric dryer showing an embodiment of the present invention, Fig. 2 is a longitudinal sectional view thereof, Fig. 3 is a rear view showing the internal structure, and Fig. 4 is a cross-sectional view showing the entire fan. Figure 6 is a cross-sectional perspective view showing a part of the discharge port of the fan, Figure 6 is a cross-sectional view of the bearing part of the fan, Figure 7 is a cross-sectional view of the hinge of the lid, and Figure 8 is a cross-sectional view of the fan's bearing part.
The figure is a cross-sectional perspective view of the backing of the input port, and FIG. 9 is a front view of the internal structure seen from the front. 1...Box body, 3...Drum, 26...
...Fan, 26 ...Fan case, 36
...Discharge port part, 35a...Outer circumference block,
36... Thin lip, 41... Cover, 4
1a...Claw portion. Name of agent: Patent attorney Toshio Nakao and 1 other person No. 1
! 1 4 73 Figure 4 Figure 5 Figure 6 Figure 6 5

Claims (1)

[Claims] A drum is rotatably supported within a box body, and a fan is fixed within the box body and has an inlet port communicated with the drum. The outer circumferential surface of the discharge port part has a
This electric dryer is provided with an outer circumferential rib for attaching a cover covering the opening of the discharge port, and a narrow rib located at the opening at the opening end, integrally formed with the discharge port.