JPS58177690A - 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 rotating a drum.

Generally, in an electric dryer, high-temperature drying air is moved by the rotation of a fan impeller, and drying is performed by bringing the drying object into contact with the drying air. Here, the impeller rotates at a high speed in order to increase the air volume and pressure.1. In order to withstand this high rotational speed, oil-impregnated bearings are used as bearings. An oil-impregnated felt is provided inside the bearing, and there is a risk that lubricating oil may leak out and adhere to the impeller during the high-speed rotation. As the impeller rotates, the lubricating oil adhering to the impeller is blown off by centrifugal force, adheres to the inner surface of the fan case, and flies out of the machine from the discharge port.
There is a great possibility that the lubricating oil spilled out of the aircraft will stain the ceiling or walls near the aircraft.

The purpose of the present invention is to prevent lubricating oil from scattering outside the machine from the discharge port of the fan case, and its basic structure is to integrate a protruding member into the inner surface of the fan case near the discharge port. By protruding from the fan and holding the oil-absorbing member with this protruding member, the oil-absorbing member is impregnated with a thin film of oil that is scattered by the rotation of the fan.

An embodiment of the present invention will be described below with reference to the accompanying drawings. In the figure, 1 is a box constituting 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. Reference numeral 3 denotes a drum placed inside the box body 1. The rear part of the body plate 6, which is partially provided with baffle plates 4, is shaped like a disk and has many small holes 6 for air circulation in the center. The front part of the body plate 6 is sandwiched between a circular plate 1o having a circular opening with 7 flange 9 in the center, and the outer periphery of the circular plate 8 and the circular plate 10 is The body plate 6 is fixed by caulking or the like at the section. The drum 3 has a bearing 7 fixed at the center of a circular base plate 8 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. It is pivoted.

Further, a bearing material 14 having good wear resistance and a small coefficient of friction is pasted and fixed on the inner surface of the seven-run part 9 of the disc 1o at the front of the drum 3 so as to be able to slide. This bearing material 14
A front support plate 16 having a slidable outer diameter is pivotally supported on the inner diameter of the front support plate 16 . The front support plate 15 is fixed to the front plate 2 via a block 16 and a beater plate 18 which fixedly supports a heater 17 inside the block 16, and the drum 3 is rotatably supported within the box body 1. . Then, a drum pulley 22 fixed to one side of a motor support shaft 21 fixed to a motor support plate 19 fixedly supported on the bottom surface of the body 1'' and the outer periphery of the body plate 5 are wound through a tension pulley 23. hung belt 2
4, the drum 23 is rotationally driven.

26 is 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. An impeller 30 is rotatably supported via a fan shaft 31. A pulley 32 is fixed to the other end of the fan shaft 31, and the impeller 3o is rotationally driven by a 77/belt 34 wrapped around the motor pulley 33 fixed to the other end of the shaft of the motor 2o. be.

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, and the motor 20 is positioned downwardly and upwardly at the other upper and lower corners of the box body 1. fan 2
6 each. Further, the outlet portions 36 of the fan cases 26 and 27 of the 7-ang fan 26 are provided so as to protrude from the holes in the top surface of the box body 1. The discharge port portion 36 is provided with a chevron-shaped outer lip, and a lip 36 is integrally molded on the upper surface of the discharge port portion 36 so that the inside and outside of the discharge port portion 36 can be removed.
＼It has the role of preventing foreign objects from falling or fingers accidentally entering and touching the impeller 3°.

There is a pin 37, which is an integrally molded projecting member, on the inner surface of the uncase 26 near the discharge port 36, and a felt 38, which is an oil-absorbing member, is inserted and fixed to the pin 37. This felt 38 is made so that it is not visible from the back surface of the disk portion 39 of the impeller 30 or from the top surface of the discharge port portion 35. This is because when the lubricating oil in the oil-impregnated felt 4o provided inside the bearing 29 leaks out and is scattered by the centrifugal force along the back surface of the disc part 39 due to the rotation of the impeller 3o, It serves to absorb the liquid so that it does not fly out. The felt 38 melts and crushes the head of the pin 37 to prevent it from falling off. The discharge port 36 of the 7-ring 26 has a claw portion 41a.
A protrusion 35a [Q] protrudes from the outer circumferential surface of the discharge port 36, into which a stepped cylinder 41 for attaching an exhaust port duct or the like is fitted.

The bearing 29 of the fan 25 is mounted on metal 4 at both ends of the case 420.
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 cylinder 46 and the body of the case 42, and is interconnected with the oil-impregnated felt 40 in the body through a communicating felt 49 inserted into a small hole 48 provided in the center of the case 42. It looks like it will. Further, one end of the cylinder 46 has a 7-lunge 6o on the inside, and the opening of the 7-lunge 50 projects toward the pulley 32 from the joint surface of the metal 43 of the case 42 on the pulley 32 side and the thrust surface of the pulley 32. The oil-impregnated felt 47 inside the cylindrical body 46 serves to absorb oil scattered from the joint surface.

The front plate 2 has a square window 51 provided at the center of the front support plate 15 and a square slot 62 for depositing metal.
2 is joined to the backing 53 so as to be airtight.

The front plate 2 is provided with a lid 55 that is rotatably supported to open and close by a hinge 54.
The lid 65 is closed to cover the input port 52, and a rib 66 provided at the closed time 65 is attached to the backing 63.
The inside of the drum 3 is made airtight by being pressed against the hollow part 67 of the drum 3. The hollow part 67 of the backing 53 is connected to the input port 62.
As shown in FIG. 8, it has a shape with a slight bulge 68 toward the inside of the inlet 62, and the wall thickness t1 on the side of the bulge 58 is defined as the wall thickness t on the outside of the hollow part.
By forming the backing 63 thicker than 2, it has the effect of preventing deformation of the shape of the hollow portion that occurs when the backing 63 is placed along the corner 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.

There is an air intake port s 9 next to the above-mentioned input port 62 provided on the front plate 2.
'7 Setup (rj, cover 60 covering this intake port 59
A filter 61 is removably fitted into the holder. Furthermore, the filter cover 62 is provided on the cover 60 via a hinge so that the filter cover 62 covering the filter 61 can be opened and closed freely. On the rear surface of the intake port 59, there are a heater plate 18 sandwiched between the front support plate 15 and the heater plate 1.
There is a heater 17 fixed to the front support plate 16, and a small porous hole 63 is provided at a position opposite to the heater 17 on the front support plate 16.
The outside air and the inside of the drum 3 are communicated through the heater 17. Further, a filter 64 and a filter cover 65 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. In addition, the filter cover 65 serves to prevent the 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 exposed to damage.

At a position opposite to the small hole 6 of the circular substrate 8 of the support plate 11,
An air circulation hole 67 is open, and a circular seat 68 is formed around the air circulation hole 67 of 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 the central small hole 6 of the circular substrate 8.

Further, a box-shaped guide path 7o is formed in one direction from a circular seat 68 including an air circulation hole 67 on the support plate 8, and a sealed air guide path is formed by a patch plate 71 that closes the guide path 70. It is something to do. The end of the guide path 70 is connected to the inter-cylindrical lower 2
and the suction lower 3 provided in the aforementioned 7 uncase 27,
The backing 74 provides airtight communication.

In this way, the heated air enters the heater 17 from the air intake port 59 from the filter cover 62 through the filter 61 and is sucked into the drum 3 through the small hole 63 of the front support plate 16, and is drawn between the clothes inside the drum 3. The water vapor generated from the clothes passes through the filter cover 65 and filter 64 on the rear surface of the drum 3, and then through the small hole 6 and the conduit 7 of the support plate 11.
The air is sucked into the fan 25 through the air outlet 36, and then discharged outside the machine through the discharge port 36.
Drying is performed.

The lid 55 is provided with a circular portion 76 that is concentric with the center of rotation of the hinge 54 provided near the hinge 54 that opens and closes the lid 55, and a rib 78 having a notch 77, and a spring that abuts against the surface of the lip 78. 79 is fixed to the front plate 2 so that when the lid 65 is closed, it comes into contact with the lip 78 and the circular part 76, and when it is opened, it comes into contact with the notch 77, and when the lid 66 is opened, the spring 79 comes into contact with the notch 77. It is designed to act as a stopper by the pushing force. This allows the lid 66 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 drum 30 rotates clockwise. This has the effect that the clothing under the drum 3 rotates and moves 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 upward and falls. When this fall occurs,
The drum 3 is heated by the air sucked out from the filter cover 66 at the rear of the drum 3. Therefore, the heating efficiency is much better than when the drum 3 rotates counterclockwise.

As is clear from the above embodiments, according to the present invention, a projecting member is integrally provided on the inner surface of the fan case of the fan near the discharge port, and the oil-absorbing member is held by the projecting member. The oil that adheres to the impeller when the fan operates and is further scattered by centrifugal force can be prevented from exiting the machine through the discharge port by impregnating and retaining the oil. This can prevent oil from adhering to the ceiling, walls, etc. of a house.

[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, 8...
... Circular board, 11 ... Support plate, 25 ...
...Fan, 26...Fan case, 35.
... Discharge port part, 37 ... Pin (protruding member), 38 ... Felt (oil-absorbing member), 70.
...Conduit, 73...Intake port. Name of agent: Patent attorney Toshio Nakao and 1 other person No. 1
Figure 473 25th i! Figure 4 Figure 5 Figure 6 Figure 6 5

Claims (1)

[Claims] A shaft supporting a bearing provided on a circular substrate at the rear of the dome rotatably supported within the box is fixed to a support plate provided at the rear of the box, and a guide path is provided in the support plate to communicate with the inside of the drum. A projecting member is integrally provided on the inner surface of the fan case of the fan near the discharge port, and the projecting member is used to hold the oil-absorbing member. Electric dryer.