JPH10286421A - Filter structure for air cleaner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enhance the shape holding property of a filter and to improve the attaching and detaching workability of the filter by folding a rectangular filter body consisting of a laminate of a dust collecting sheets and deodorizing sheets like bellows in such a manner that parallel folds are formed on the opposite two sides on one side thereof and mounting rectangular frames to the four sides of such filter body. SOLUTION: The filter 21 to be mounted in an on-vehicle air cleaner consists of the filter body 22, which consists of the dust collecting sheets 22A and the deodorizing sheets 22B and is pleated to many peak shapes (bellows shapes), a pair of side plates 23 which are adhered to both side end faces on the side intersecting with the pleats direction of the filter body 22 for the purpose of holding the shape of the pleats and a pair of reinforcing plates 24 which are erected between both ends of a pair of these side plates 23 and are adhered and fixed integrally to the side plates 23 and the side edges of the filter body 22. The pleated filter body 22 is enclosed by a pair of the side plates 23 and the reinforcing plates 24, by which the shape holding of the filter body 22 is assured and the attaching and detaching work efficiency to and from the inside of the air cleaner is enhanced.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a filter installed in, for example, a vehicle air purifier, and more particularly to a filter structure for an air purifier having a structure capable of reducing the cost of the filter. .

[0002]

2. Description of the Related Art As an example of a vehicle air purifier, there is one having a structure as shown in FIG. That is, reference numeral 1 denotes an air purifier mounted on the rear side of a rear parcel shelf 2 of an automobile. The air purifier 1 includes an upper housing 5 having an air inlet 3 and an air outlet 4 arranged side by side, and A lower housing (6) attached to the lower opening of the upper housing (5); a fan (7) disposed close to the air suction port (3) in an internal space defined by the upper housing (5) and the lower housing (6); And a filter 8 disposed close to the air discharge port 4. The fan 7 is rotatable with respect to the lower housing 6 by a motor 10 fixed with mounting screws 9.
Of the upper housing 15 and the lower housing 6
It is arranged so as to cross the air passage in the housing on the peripheral filter receiving shelf 11 formed therein.

Further, as shown in FIG. 7, a structure of the filter 8 includes a dust collecting filter 14 in which a patch 13 is adhered to both sides of a pleated filter paper 12 in order to maintain the pleated form. An activated carbon filter 15 laid on the lower surface of the dust collection filter 14;
4 and a filter case 16 made of resin for polymerizing and holding the activated carbon filter 15.

That is, since the material of the dust collecting filter 14 is paper, and the activated carbon filter 15 is a sheet-shaped material which is easily deformed, both of the dust collecting filter 14 and the activated carbon filter 15 are used. The dust collecting filter 14 and the activated carbon filter 15 are used for shape retention and for enhancing the ease of attaching / detaching work to / from the housing.
Must be fitted and held in the filter case 16 having rigidity.

[0005]

As described above, in the structure of the conventional filter 8, the pleated dust collecting filter 14 is not provided.
In addition, since a filter case for fitting and holding the activated carbon filter 15 is required, the manufacturing cost of the filter case is increased, and the assembly cost of the filter 7 using the filter case is increased. Therefore, there was a problem that the cost of the filter 8 was significantly increased.

[0006] Further, the conventional filter 8 includes the dust collecting filter 1.
Since the filter 4 and the activated carbon filter 15 are combined, it is necessary to individually manufacture the filters 14 and 15 and to manage the members, and the cost of the filter is also increased. The present invention has been made in order to solve the problem of cost increase in the conventional filter, and it is possible to omit the use of the filter case which has been conventionally used, and to maintain the shape as a filter even if the filter case is omitted. It is a first object of the present invention to provide a filter capable of sufficiently increasing the filter height and improving the workability of attachment and detachment to and from the air purifier housing.

[0007]

In order to achieve the first object, according to the present invention, a rectangular filter body composed of a laminate of a dust collecting sheet and a deodorizing sheet is provided on two opposing sides thereof. Fold the bellows so that parallel folds are formed,
In addition, a pair of side plates is attached to the other two opposite sides of the bellows-folded filter body, and a pair of reinforcing plates is formed between both ends of the pair of side plates in cooperation therewith to form a rectangular frame. It is characterized by having a filter structure for an air purifier.

Further, in claim 2, in addition to claim 1,
The pair of side plates and the pair of reinforcing plates are made of a material such as a cardboard, a wooden board, or a soft resin plate, and the pair of reinforcing plates are formed into a highly rigid cross-sectional shape such as a C-shaped or L-shaped cross-section. It is characterized by a dexterous filter structure.

According to a third aspect of the present invention, in addition to any one of the first and second aspects, the pair of side plates and the pair of reinforcing plates are alternately connected to each other except for one end, and are formed into a belt shape. It is characterized in that it is a filter structure for an air purifier which is bent in a rectangular shape and attached to each side of the filter body.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail for each embodiment shown in the drawings.

In FIG. 1, reference numeral 21 denotes a filter installed in, for example, a vehicle air purifier.
Is a pair of a filter body 22 pleated in a number of mountain shapes (bellows shape), and a pair of filter bodies 22 bonded to both end surfaces on the side intersecting the pleating direction for retaining the pleats. A side plate 23, and the pair of side plates 23;
And a pair of reinforcing plates 24 integrally bonded and fixed to the side plates 23 and the edges of the filter body 22.

The pair of side plates 23 and the pair of reinforcing plates 24
May be made of, for example, wood, resin, or cardboard. Further, since the side plate 23 is attached to the bellows-like both end surfaces of the filter body 22 using an adhesive or the like as appropriate, sufficient rigidity can be obtained with a simple flat band-shaped side plate. In this case, since the filter plate 22 is positioned in a direction parallel to the pleating direction, it is required that the reinforcing plate 24 itself has rigidity.

Therefore, in the embodiment shown in FIG.
4 is formed in a U-shaped cross section by a reinforcing portion 24 </ b> A formed by a pair of parallel flange pieces, and when connecting both ends of the reinforcing plate 24 to ends of the side plate 23, the U-shaped of the reinforcing plate 24 The end of the side plate 23 is inserted into the portion, that is, between the pair of flange pieces 24A, and the ends of the side plate 23 and the reinforcing plate 24 are further inserted.
Is fixed using an appropriate bonding means.

The filter body 22 includes a dust collecting sheet 22A made of, for example, a polypropylene resin fiber, and a deodorizing sheet 22B made of activated carbon-attached fibers laminated on a surface downstream of the dust collecting sheet 22A.
It consists of

As described above, in the present embodiment, the pleated filter main body 22 is connected to the pair of side plates 23.
And the reinforcing plate 24, the shape of the filter body 22 is maintained by the side plates 23 and the reinforcing plate 24, and the workability of attaching and detaching the filter to and from the air purifier is ensured. Is good.

Further, according to the present embodiment, since the side plate 23 and the reinforcing plate 24 cooperate to maintain the shape of the filter body 22, the filter case used conventionally can be omitted. , Which greatly enhances the economy of the filter structure.

FIGS. 2 to 5 show other embodiments of the present invention. The difference between these other embodiments and the embodiment shown in FIG. This is a difference in the structure of the provided reinforcing portion 24A. That is, the reinforcing portion 24A in FIG. 2 is positioned so as to face the outside of the reinforcing plate 24, and the reinforcing plate 24 is erected and fixed between both ends of the side plate 23.

In the embodiment shown in FIG. 3, the reinforcing plate 25 is made of cardboard, and one side of the cardboard is formed as a reinforcing portion 25A bent into a flange shape, and the opposite side is formed in a rectangular tube shape. The reinforcing plate 25 is used as a bent reinforcing portion 25B. Then, the reinforcing plate 25 is connected to the side plate 23.
When erection and fixing between both ends, the reinforcing portion 25A is positioned so as to face outward, and the reinforcing portion 25B is positioned so as to face inward.

In the embodiment shown in FIGS. 4 and 5, the reinforcing plate 26 is made of cardboard, and the opposite sides of the cardboard are bent into a rectangular tube shape to form a pair of reinforcing portions 26A. It is. Furthermore, the reinforcing portion 26A of the rectangular tube shape
In the embodiment shown in FIG. 4, a nail 26B is formed at the bent end of the reinforcing portion 26, and the nail 26B is inserted into an engaging hole 26C formed in the reinforcing plate 26 in the embodiment of FIG. By bending the insertion tip of the claw piece 26B, the rectangular tube-shaped reinforcing portion 26A can be maintained without using an adhesive or the like. (See FIG. 4C).

In the embodiment shown in FIG. 5, the claw pieces 26 shown in FIG.
A hook 26D is formed on one side of B, the claw 26B is inserted into the engagement hole 26C, and the hook 26D provided on the claw 26B is locked to the hole edge of the engagement hole 26C. If
As shown in FIG. 4, an operation step of bending the claw pieces 26B is omitted, and the workability of assembling the reinforcing plate is improved.

FIGS. 8 to 10 show still another embodiment of the present invention. That is, in each of the above embodiments,
A pair of side plates 23 attached to both end surfaces on the side intersecting the pleat direction of the filter body 22 formed in a bellows shape
8 and a pair of reinforcing plates 24 erected between both ends of the pair of side plates 23 and integrally bonded to the side plates 23 and the edges of the filter main body 22.
In the embodiment shown in FIG. 10 to FIG. 10, a pair of side plates 23 and a pair of reinforcing plates 24 are formed as a series of strips 27, and the strips 27 are formed by bending lines which are previously applied to the strips 27. By bending the filter frame along the above, a rectangular reinforcing frame capable of surrounding the periphery of the filter main body 22 can be formed.

That is, in the embodiment shown in FIG. 8, a pair of side plates 23 and a pair of reinforcing plates 26 are alternately and continuously formed via bending lines 23A to form a strip 27, for example, a wooden board, a cardboard, or the like. Is cut as a material or molded into a resin plate, and the developed shape of the reinforcing plate 26 is the same as the embodiment shown in FIG. 5 when the reinforcing plate 26 is bent. Is formed into a cut piece whose cross-sectional shape can be made into a rectangular tube shape.

In other words, the developed shape of the two reinforcing plates 26 is a base 26E extending on the same axis as the strip-shaped side plate 23.
And a pair of bending lines 26F on a pair of edges of the base 26E.
And each of the bent pieces 26G continuously provided at the boundary, and further, on the outer edge of the bent piece 26G located on the outermost side,
A claw piece 26B having a hook piece 26D at its tip protrudes. Further, the base portion 26E is provided with the respective nail pieces 2.
Each engagement hole 26C for locking the 6B is formed.

In order to form a reinforcing frame using the band-shaped pieces 27 configured as described above, each bent piece 26G is sequentially bent inward along each bending line 26F to form a side edge of the base 26E. The rectangular tube-shaped reinforcing portion 26A is formed in the portion, and the claw pieces 26B and the hooks 26D are locked in the respective engagement holes 26C, thereby maintaining the rectangular tube shape.

After the reinforcing portions 26A in the form of rectangular tubes are formed on both side edges of both base portions 26E in this manner, the base portions 2E are formed.
The bending line 23A at the boundary between 6E and the side plate 23 is sequentially bent inward, and the tip 23B of the side plate 23 is further bent.
A rectangular reinforcing frame having a reinforcing portion 26A at a pair of edges is formed by bonding to the glue allowance 26H of the base portion 26E. If the filter main body 22 is fitted into the reinforcing frame and bonded, the desired rigidity is obtained. Having a filter.

In the embodiment shown in FIG. 9, the material is a material such as cardboard which is easy to bend, but when the material is, for example, a wooden board or a resin board, The bending lines 23A and 26F
As shown in FIG. 10, if a thin groove is formed to enable bending, a reinforcing frame made of a wooden board or a resin board can be easily assembled. By applying the embodiment shown in FIGS. 8 and 9, for example, reinforcing plates 24, 25, 26 and side plates 23 having the shapes shown in FIGS. It can also be created by bending.

As described above, according to the embodiment shown in FIGS. 8 to 10, one reinforcing plate can be formed by bending a single material plate, so that the plurality of side plates 23 and the reinforcing plate 2 can be formed.
As compared with the above-described embodiment in which the reinforcing frame is formed by using 4, 25, and 26, the ease of manufacture and the economic efficiency are greatly improved.

As described above, according to the reinforcing plate structure shown in FIGS. 3 to 5, a rectangular cylindrical reinforcing portion 26 is provided at the periphery of the reinforcing plate.
Since A is formed, the rigidity of the reinforcing plate is increased, and the filter main body 22 is not bent, whereby the workability of attaching and detaching the filter 21 to and from the air purifier is improved. The filter cut inside can be maintained in the normal posture.

[0029]

As described above, according to the present invention, in a filter structure having a structure detachable from an air purifier,
Since the structure is such that the reinforcing frame is formed integrally with the filter body, the rigidity of the filter can be increased.
The filter case which has been conventionally used can be omitted, and furthermore, since the dust collecting filter and the activated carbon filter are integrally formed, the economical efficiency of the filter structure is greatly improved.

[Brief description of the drawings]

FIGS. 1A, 1B, and 1C are a perspective view, an essential part sectional view, and an enlarged sectional view of a filter main body showing an embodiment of a filter structure according to the present invention.

FIGS. 2A and 2B are a perspective view and a main part cross-sectional view showing another embodiment of a filter structure according to the present invention.

FIGS. 3 (a) and 3 (b) are a perspective view and a cross-sectional view of a main part showing still another embodiment of the present invention.

FIGS. 4A, 4B, and 4C are perspective views, plan views of essential parts, and FIGS.
FIG.

FIGS. 5 (a), (b) and (c) are perspective views, plan views of essential parts and (B) of (b) of another embodiment of the present invention.
B sectional drawing.

FIG. 6 is a cross-sectional view showing a state in which a filter is installed in an on-vehicle air purifier.

FIG. 7 is an exploded perspective view showing a conventional filter structure.

FIGS. 8A, 8B, and 8C are a perspective view, a plan view of a main part, and a cross-sectional view taken along the line BB of FIG. 8B showing still another embodiment of the present invention.

FIG. 9 is a development view of a reinforcing frame constituting material according to still another embodiment.

FIGS. 10A and 10B are a development view and a cross-sectional view taken along line CC, respectively, showing another example of the reinforcing frame constituting material shown in FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 21 ... Filter 22 ... Filter main body 23 ... Side plate 23A ... Bending line 23B ... Side plate tip 24, 25, 26 ... Reinforcement plate 24A, 25A, 25B, 26A ... Reinforcement part 26B ... Claw piece 26C ... Engagement hole 26D ... Hook piece 26E … Base 26F… Bending line 26G… Bending piece 26H… Glue allowance 27… Strip-like piece

Claims (3)

[Claims] 1. A dust collecting sheet (22A) and a deodorizing sheet (2)
2B) and a rectangular filter body (22) made of a laminate
Is folded in a bellows so as to form a fold parallel to one of the two opposite sides thereof, and a pair of side plates (2) is attached to the other two opposite sides of the bellows-folded filter body (22).
3) and a pair of reinforcing plates (2) between both ends of the pair of side plates (23) to form a rectangular frame in cooperation therewith.
4, 25, 26). A filter structure for an air purifier, comprising: 2. The pair of side plates (23) and the pair of reinforcing plates (24, 25, 26) are made of a material such as a cardboard, a wooden board, or a soft resin plate, and the pair of reinforcing plates (24, 2).
5. The filter structure for an air purifier according to claim 1, wherein the sections (5, 26) are formed in a highly rigid cross-sectional shape such as a cross section C or an L-shape. 3. The pair of side plates (23) and the pair of reinforcing plates (26) are alternately connected to each other except for one end to form a band shape, and are bent into a rectangular shape to form the filter body (22). 3. The filter structure for an air purifier according to claim 1, wherein the filter structure is attached to each side of the air purifier.