JPH03126491A - Rotary drum type clothing dryer - Google Patents

Abstract

PURPOSE:To obtain a clothing dryer with easy assembling and stable quality by providing a bearing material consisting of a sliding material and felt, and forming the bearing material by joining the sliding material to a recessed part formed in such a way that part of the thermoplastic resin impregnation part of the felt is compressed. CONSTITUTION:The bearing material 25 consisting of the sliding material 19 and the felt 20 is provided, and the recessed part 21 is formed by compressing part of the thermoplastic resin impregnation part in which thermoplastic resin is impregnated by 50-200g per m<2> of felt. The bearing material 25 is formed by fitting the sliding material 19 in the recessed part 21, and an integrated bearing material 25 is mounted on a drum supporting plate 24. As a result, easy assembling can be obtained, and the quality can be stabilized.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a rotary drum type clothes dryer for drying clothes and the like.

Conventional technology FIG. 9 shows the configuration of a conventional rotary drum type clothes dryer.

As shown in the figure, a motor 2 is attached to the top of the outer tank 1,
A belt 6.6 is stretched between the motor 2, a heat exchange fan 3 provided on the back side of the outer tank 1, and a rotating drum 4 provided in front of the heat exchange fan 3.
The heat exchange fan 3 and the rotary drum 4 are rotated by the driving force. The rotating drum 4 has a shaft 8 loosely fitted into a shaft bearing 7 provided at the rear thereof, and the front thereof is rotatably supported by a bearing material 1o made of felt and sliding material bonded to the outer periphery of a drum support plate 9. has been done.

A heater 11 is installed on the front side of the outer tank 1, and a filter cover 12 and a mesh filter 1 are installed at the rear inside the rotating drum.
There are 3. Then, as the heat exchange fan 3 rotates, hot air heated through the heater 11 is introduced into the rotating drum 4, and the items to be dried (clothes) housed in the rotating drum 4 and being stirred are dried.

At this time, the humid air A that has removed moisture from the clothes is filtered through the mesh filter 13 to remove dust and dirt contained in the clothes to be dried. The flowing cold air B (!: heat exchanges and is cooled, the moisture in the humid air λ becomes water droplets and flows out of the machine from the drain port 14, and the dry air is heated by the heater 11 and introduced into the rotating drum 4 again. be done.

In this way, the material to be dried is dried.

As described above, the purpose of the rotating drum 4 is to agitate the dryer (clothes), and the present invention provides a bearing material 1o for the rotating drum 4.
It is related to.

The structure of the bearing material 10 is shown in FIGS. 6 to 8.

The bearing material 1o is composed of a sliding material 18 in which a felt 15 and a sliding plate 16 are joined to a rubber bearing plate 17. The felt 15 is a band-shaped member with a punched out portion into which the sliding material 18 will be inserted, and is attached to the outer periphery of the drum support plate 9 over almost the entire circumference. A sliding material 18 is partially bonded or inserted into the upper part of the drum support plate 9, which receives the load of the rotating drum 4.

The felt 15 is generally manufactured by punching out the area where the sliding material 18 will be inserted and also punching out the outer periphery of a wide felt material with double-sided tape attached. The felt 15 and the sliding material 18 are normally constructed separately and joined to separate drum support plates 9. Therefore, it is necessary to use a complicated assembly method in which the sliding material 18 is bonded or inserted into the drum support plate 9 and then the felt 16 is joined to the drum support plate 9.

In addition, as shown in FIG. 8, the felt 16 is a sliding material 18
Since the part where the drum is inserted is punched out, the adhesive width around it with the drum support plate 9 is narrow, and when the rotating drum 4 is inserted, it turns over and gets caught between the rotating drum 4 and the drum support plate 9, causing the rotation This may prevent the drum from rotating 40 times.

Problems to be Solved by the Invention Conventionally, the felt 16 and the sliding material 18 have been constructed separately 4, and it has been necessary to use a complicated assembly method in which they are separately joined to the drum support plate 9.

Another problem is that the felt 16 turns over when the clothes dryer is assembled and gets caught between the rotating drum 4 and the drum support plate 9, so that the rotating drum 4 does not rotate smoothly.

In view of the above problems, the present invention aims to provide a clothes dryer that is easy to assemble and has stable quality.

Means for Solving the Problems In order to achieve the above object, the present invention unintentionally integrates felt and sliding material, simultaneously joins them to a drum support plate, and uses felt impregnated with thermoplastic resin. It is something. Further, the thermoplastic resin-impregnated portion of the felt is formed only in the periphery of the concave portion.

Function: In the bearing material of the present invention, the felt and the sliding material are integrated in advance, making it easy to attach the bearing material to the drum support plate. In addition, since the felt and the sliding material are joined over a wide width, the felt and the sliding material will not be turned over even when the rotating drum is inserted, and the rotation of the rotating drum will not be inhibited. Furthermore, the flexibility of the felt prevents the vibrations generated when the rotary drum rotates from being transmitted to the drum support plate, resulting in a significant vibration reduction effect.

Additionally, recesses are formed in the felt impregnated with thermoplastic resin to stabilize the shape of the four parts.

Further, since only the portion around the recess is impregnated with the thermoplastic resin, the amount of the thermoplastic resin can also be minimized.

Embodiments Hereinafter, embodiments of the present invention will be described based on the accompanying drawings.

An embodiment of the invention is shown in FIGS. 1-3.

In the figure, reference numeral 19 denotes a sliding material, which is made of a compound mainly composed of Teflon, a polyamide resin sliding material, a polyacetal resin sliding material, or the like. On the other hand, four portions 21 are formed at several locations on the felt 20 impregnated with a thermosetting resin. this is,
For example, it is formed by pressing a heated hot plate against the Fe/L/) 20 and deforming it. This recess 21 is formed in four parts 2 formed entirely in the width direction of the felt 20 as shown in FIG.
1' or, as shown in FIG. 3, may be recessed portions 21'' formed partially in the width direction of the felt.The sliding material 19 is bonded to these four portions 21 with adhesive, adhesive tape, etc. By joining the sliding material 19 to this concave portion 21, the sliding material 19 is prevented from shifting due to the frictional force of the rotating and sliding movement of the rotating drum 4.The back side of the felt 20 is bonded with adhesive. A bonding material 23 such as adhesive or adhesive tape is bonded to form a bearing material 25 with the sliding material 19, felt 20, bonding material 22, and bonding material 23.The bearing material 26 is the conventional example shown in FIG. Similarly, the sliding material 19 is attached to the outer circumference of the drum support plate 24 over almost the entire circumference, with the sliding material 19 on the road side.
is inserted and rotatably supported.

The sliding material 19 serves to prevent wear caused by sliding of the rotating drum 4. The felt 2o has a function of ensuring airtightness while allowing the rotary drum 4 and the drum support plate 24 to rotate freely. That is, it has the role of preventing leakage of humid air within the rotating drum 4 and ensuring that the humid air is delivered to the heat exchange fan 3. By joining the sliding material 19 to the recess 21 of the felt 20, compared to simply joining the sliding material onto the felt, the non-contact area between the felt 2Q and the rotating drum 4 is reduced to the joining part of the sliding material 19. Keep it to the minimum necessary and use felt 20
Airtightness with rotating drum 4? It can be increased. The sliding material 19 is bonded to the top of the felt (fel) 20, and the vibrations generated when the rotary drum 4 rotates are transmitted to the drum support plate 24 due to the flexibility of the felt (fel) 20, resulting in a vibration reduction effect. be.

Furthermore, when forming a bearing material by compressing a portion of felt to form four parts and bonding a sliding material to the four parts, with ordinary felt, there is a large variation depending on the forming conditions, and the felt does not return to its original shape when left unused. There was a drawback that the thickness of the recessed portion changed as it tried to return to its shape.

Therefore, the felt 20 of the present invention is made by impregnating each felt 1 with 50 to 20 og of thermoplastic resin (for example, acrylic resin) by spray coating. When several sliding materials 19 are used, the thermoplastic resin impregnated portion 26 is formed across several sliding materials 19 as shown in FIG. Alternatively, the thermoplastic resin impregnated portion 27 is formed around each sliding member 19 as shown in FIG.

The concave portion was obtained by heat-pressing felt with an impregnated amount of thermoplastic resin of 0 to 200 g per 1 d to form the four parts 21, and leaving it in an atmosphere at a temperature of 40°C and a relative humidity of 90 to 95% for 168 hours. Table 1 shows an example of the amount of change in thickness of No. 21. From this result, the amount of thermoplastic resin impregnated is preferably sog or more.

Table 1 Examples are shown in Table 2.

Table 2 Relationship between thermoplastic resin impregnation amount and 10% compressive load One felt 2o requires a function to ensure airtightness while making the rotary drum 4 and drum support plate 24 rotatable. Flexibility in direction is required. From the results in Table 2, the maximum amount of thermoplastic resin impregnated is 200 g.

-4. If the entire felt is impregnated with thermoplastic resin, the overall elasticity will be reduced, and the function of sealing the gap between the rotating drum 4 and the drum support plate 24 will be insufficient.

In the present invention, the thermoplastic resin impregnated portion 26,
27, it is possible to suppress changes in the thickness of the recess 21 without impairing the original function of the felt.

Effects of the Invention As described above, in the present invention, the felt and the sliding material are first joined and then joined to the drum support plate at the same time, so assembly is easy. In addition, since the felt is also present at the bottom of the sliding material, when assembling the clothes dryer, the felt turns over and gets caught between the rotating drum and the drum support plate, causing the problem that the rotating drum does not rotate smoothly. This can be prevented, and due to the flexibility of the felt, the vibrations generated when the rotating drum rotates are less likely to be transmitted to the drum support plate, resulting in a vibration reduction effect. Furthermore, since the concave portion to which the sliding material is bonded is impregnated with thermoplastic resin and then heated, it is possible to suppress changes in thickness over time, and because the thermoplastic resin-impregnated portion is limited to the vicinity of the sliding material, The airtightness between the felt rotating drum 4 and the drum support plate 24 is not impaired.

As described above, the present invention provides a clothes dryer that is easy to assemble and has stable quality.

[Brief explanation of the drawing]

FIG. 1 is a sectional view of a main part of an embodiment of the present invention, FIGS. 2 and 3 are plan views of the main part, and FIGS. 4 and 5 are plan views showing the coating state of the thermoplastic resin. Figure 6 is a longitudinal cross-sectional view of a conventional drum support plate and bearing material, Figure 7 is a cross-sectional view of the same essential parts, Figure 8 is a plan view of the same essential parts, and Figure 9 is a longitudinal cross-section of a conventional clothes dryer. It is a diagram. 19... mU material, 20... felt,
21... Concavity, 25... Bearing material, 26
...Thermoplastic resin impregnated part, 27... Thermoplastic resin impregnated part.

Claims (2)

[Claims] (1) It has a bearing material made of a sliding material and felt, and a part of the thermoplastic resin-impregnated part impregnated with thermoplastic resin at 60 to 200 g per 1 m^3 of felt is compressed to form a recess, and the A rotating drum type clothes dryer with a bearing material bonded to a sliding material. (2) The rotary drum type clothes dryer according to claim 1, wherein the thermoplastic resin-impregnated portion of the felt is formed only in the periphery of the concave portion.