JPH11147011A - Filter - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a filter wherein disposal as an industrial waste is made minimal and main constitutional parts are repeatedly recycled without disposing to prevent the environment from being contaminated and destroyed and cost reduction is made by performing recycling of the filters to give a remarkable benefit to consumers. SOLUTION: A filter main body 1 is formed by mounting freely removably a sheet-like filter layer main body 10 constituted of a nonwoven fabric on the outer surface of a filter 61 consisting of a paper-made filter paper 7 mounted on the outer peripheral face of a metal-made body 2. The filter layer main body 10 is constituted of the first filter layer 11, the second filter layer 12 and the third filter layer provided between both filter layers 11 and 12. When the filter main body 1 is exchanged, only the filter layer main body 10 constituted of the nonwoven fabric is exchanged and the filer 61 itself is reused and a new filter layer main body 10 is mounted on the outer peripheral face of this filter 61.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a filter used in a dry cleaning machine, and a filter such as an oil filter and an air filter used around an engine of an automobile, a construction or a civil engineering vehicle.

[0002]

2. Description of the Related Art FIG. 21 is a front view of a fully automatic dry cleaning machine 51, and an operation panel 52 is provided at an upper portion of the front of the dry cleaning machine 51. A rotary drum 53 for washing the laundry through a door below the operation panel 52 is provided.
A double door 54 at the bottom of the dry cleaning machine 51,
55 is provided so that opening and closing are possible. Behind the doors 54 and 55, a filter case 56 containing a filter for removing dust such as fiber waste flowing out of the drum 53 and an activated carbon for removing the smell of the cleaning solvent are contained. An activated carbon case 57 and a solvent tank 58 for storing a solvent are provided.

FIG. 22 is a schematic block diagram showing the flow of a solvent in a dry cleaning machine 51, which includes a drum 53, a filter case 56, an activated carbon case 57, and a solvent tank 58.
A pump 59 is interposed in the middle of a pipe connecting in a ring shape, and by driving this pump 59, the solvent in the solvent tank 58 is refluxed in the direction shown by the arrow in the figure. Thus, by rotating the drum 53 for a predetermined time, clothes and the like in the drum 53 are washed, dust such as fiber waste is removed by a filter in the filter case 56, and only the solvent is filtered. Activated carbon inside removes solvent odor.

FIG. 23 is an exploded perspective view showing a state in which two filters 61 are installed in the cylindrical filter case 56. A shaft 62 is provided in the center of the filter case 56 along the axial direction. A cylindrical filter 61 is attached to the shaft 62 by the felt packing 6.
3. The filter 61 is mounted in the filter case 56 by being mounted via the holding plate 64 and bolting the lid 65 from the outside. A rubber packing 66 is interposed between the lid 65 and the front end surface of the filter case 56 to seal the inside.

FIG. 24 is a perspective view of the filter 61. As shown in FIGS. 25 and 26, the filter 61 is mounted on a cylindrical body 2 made of metal such as tinplate and mounted on the outer peripheral surface of the body 2. And filter paper 7 made of paper. Flanges 5 are integrally formed on both sides of the body 2, and a large number of through holes 4 are formed at predetermined intervals in the body 3 of the body 2. The filter paper 7 made of paper is bent in a zigzag shape.
Is mounted on the outer peripheral surface of the body 2. The filter 61 used in this type of dry cleaning machine 51 has an outer diameter of 34 cm and an axial length of about 45 cm.

Next, the operation of the dry cleaning machine 51 will be briefly described. When the pump 59 is driven, the inside of the body 3 of the filter 61 has a negative pressure, and the fluid such as the solvent flows from the drum 53 to the filter paper 7 made of the filter 61.
It flows through the through hole 4. Dust such as fiber waste discharged from the drum 53 adheres to the surface of the filter paper 7, and large dust adheres to the outer peripheral surface of the filter paper 7 or a bent space portion. Then, fine dust is blocked by the paper filter paper 7 itself, and the liquid solvent is filtered by the filter paper 7 and passes therethrough, flows from the through hole 4 of the filter 61 to the inside of the body 3, and the next step. To the activated carbon case 57.

[0007] As the number of washings increases, a large amount of dust adheres to the filter 61, so that the air pressure in the pipe becomes a predetermined value, and the filter 61 is replaced. Then, as shown in FIG. 23, the lid 65 is removed, the filter 61 in the filter case 56 is taken out, and replaced with a new filter 61.

FIG. 27 is a schematic block diagram of an engine portion of a vehicle. An oil filter 86 is also used in this portion. These components are well known and will not be described in detail. However, in a gasoline engine or a diesel engine, oil accumulated in an oil pan 80 reciprocates a piston 76 via an oil filter 86 by an oil pump 81. The lubricating oil (oil) is sent to the cylinder 75, the camshaft 77, the rocker arm 78, the crankshaft 79, and the like, and lubricates each part. The oil filter 86 cleans the lubricating oil circulating in the engine.

FIG. 28 is a perspective view of the oil filter 86. The configuration of the oil filter 86 is basically the same as that of the filter 61 shown in FIGS. Although the size and shape of the oil filter 86 differ depending on the type of gasoline engine, diesel engine, construction vehicle, ordinary passenger car, etc., a metal cylindrical body 2 such as tinplate and a zigzag bend are formed on the outer peripheral surface of the body 2. This is the same as the filter paper 8 made of paper (see FIGS. 25 and 26). Reference numeral 4 denotes a flow hole for allowing the lubricating oil filtered through the filter paper 8 to pass therethrough.

The oil filter 86 adsorbs metal powder generated in the engine, especially in the cylinder, soot generated by combustion, and filters the lubricating oil circulating in the engine. The lubricating oil is filtered by adhering a lump of sulfur contained in the light oil. Then, the oil filter 86 used for each of the number of months used for a certain period of the vehicle and the mileage.
Is replaced with a new oil filter 86.

FIG. 29 shows an air filter 10 in a vehicle.
FIG. 3 is a diagram showing the flow of air in a portion where 1 is used, and air is sucked into an air filter 101 via an air duct 94. The air filtered by the air filter 101 is injected into the cylinder of the engine 96 together with the gasoline vaporized by the carburetor 95. The exhaust gas after combustion in the engine 96 is supplied to the catalyst 9.
7. It is discharged to the outside via the muffler 98. The air is filtered by the air filter 101 to remove dust and insects, and clean air is sent to the carburetor 95.

FIG. 30 is a perspective view of the air filter 101, which is provided on the front side of the engine of the vehicle. The air filter 101 includes a metal body 2 such as a tin plate having a large number of through holes 4 formed over the entire surface of the body 3, similarly to the filter 61 and the oil filter 86, and a body of the flat cylindrical body 2. And a filter paper 9 made of paper mounted on the outer peripheral surface of the portion 3.

The function of the air filter 101 is to filter air, and to remove dust, dirt, insects, etc. from the filter paper 9.
And clean air is supplied to the carburetor on the engine side through the filter paper 9 and the through hole 4. Then, for example, the air filter 10 used every two to three years or when traveling a certain distance, etc.
1 is replaced with a new air filter 101.

[0014]

The basic structure of each of the filters 61, 86 and 101 shown in FIGS. 24, 28 and 30 is as follows.
The filter paper 7 attached to the outer peripheral surface of the body 2, 2, 2
8 and 9. Also, the filter papers 7, 8, and 9 are bent in a zigzag shape so that large dust adheres in the valleys of this portion.
The oily solvent, lubricating oil, air and the like are adhered by themselves and are filtered. Further, since the filter papers 7, 8, 9 are made of paper, an increase in the price of the filters 61, 86, 101 is suppressed.

However, such filters 61, 86,
101 has the following problems.
In particular, the filter 61 used in the dry cleaning machine 51 has a size and an outer diameter of 34 cm and an axial length of 45 cm.
cm and the filter paper 7 used for this filter 61.
Is about 20 m long. Then, when the filter is used up to a certain number of washings or a predetermined pressure, the filter is replaced with a new filter 61. Especially,
At present, the used filters 61 are not recycled (recycled), but are all disposed of as industrial waste (such as landfill). The cost of disposing of this industrial waste costs about 3,000 yen, and businesses are suffering from high burdens. This boils back to the consumer as a cleaning fee, and also disadvantages the consumer.

Here, what is more problematic than the disposal cost of the filter 61 is that it is disposed of as industrial waste. In particular, when the filter 61 that absorbs an oily solvent is buried in the ground, there is a problem of environmental pollution, and the landfill of industrial waste is almost eliminated, rather than being limited. The reality is that they are coming. As a result, the fact that illegal dumping of malicious industrial waste companies has not been overtaken has actually occurred. In addition, products are being recycled from the viewpoint of environmental pollution and environmental destruction. Discarding products such as landfills as disposal of products is against the movement of recycling.

The oil filter 86 and the air filter 101 for a vehicle shown in FIGS. 28 and 30 are the same as described above, and the used oil filter 86 and the air filter 101 after replacement with new ones are all disposed of by disposal such as landfill. It has not been recycled at all. Therefore, environmental pollution and environmental destruction are rapidly progressing throughout the earth.

The present invention has been made in view of the above points, and does not dispose the entire used filter as industrial waste, but minimizes the disposal as industrial waste. The primary objective is to recycle components many times without discarding them, thereby preventing environmental pollution and environmental destruction, and to reduce costs by recycling filters. The second object of the present invention is to provide a filter which gives a great benefit to the user.

[0019]

Therefore, in the filter according to the first aspect of the present invention, a cylindrical body 2 having a large number of holes 4 formed therein and a dust 26 attached to the outer peripheral surface of the body 2 are provided.
Filter paper 7, 8, which filters fluid containing impurities and impurities
9 and the filter papers 7, 8, 9 and the body 2
Filter body 10 for filtering fluid containing dust 26 and impurities in a filter for filtering fluid through holes 4
The filter layer main body 10 is made of a material that does not absorb oil, and the filter layer main body 10 is detachably attached to the outer peripheral surfaces of the filter papers 7, 8, and 9. I have.

With this configuration, dust and impurities are filtered by the filter layer main body 10. Then, when replacing the filter, the filter itself is not discarded, but the filter layer main body 1 attached to the filter is replaced.
It is only necessary to remove the zero and replace the new filtration layer body 10. When the fluid is an oil or an oily solvent, the filter layer main body 10 does not absorb the oil, so that the incineration is easy. Also, the filter layer body 10 and the filter paper 7
And a double filtration layer, which makes it possible to filter the fluid more finely.

Further, in the filter according to the second aspect, a cylindrical body 2 having a large number of holes 4 formed thereon and a paper-made filter mounted on the outer peripheral surface of the body 2 and filtering a fluid containing dust 26 and impurities. A filter for filtering a fluid through the filter papers 7, 8, 9 and the hole 4 of the body 2 is composed of filter papers 7, 8, 9 and filters relatively large dust 26 and impurities disposed on the outer surface side. And a second filter layer 11 disposed on the lower surface side of the first filter layer 11 for filtering fine dust 26 and impurities passing through the first filter layer 11.
The filter layer body 10 is composed of the filter layer 12 and the filter layer body 10. The material of the filter layer body 10 is made of a material that does not absorb oil. It is characterized by being freely attached.

With this configuration, relatively large dust and impurities are filtered by the first filtration layer 11, and finer dust and impurities are filtered by the second filtration layer 12. When replacing the filter, the filter itself is not discarded, but only the filter layer main body 10 attached to the filter is removed and a new filter layer main body 10 is replaced. When the fluid is an oil or an oily solvent, the filter layer main body 10 does not absorb the oil, so that the incineration is easy. In addition, a double filtration layer composed of the filtration layer main body 10 and the filter paper 7 can filter the fluid more clearly.

Further, in the filter according to the third aspect, a cylindrical body 2 having a large number of holes 4 formed thereon and a paper-made filter mounted on the outer peripheral surface of the body 2 and filtering a fluid containing dust 26 and impurities. A filter for filtering a fluid through the filter papers 7, 8, 9 and the hole 4 of the body 2 is composed of filter papers 7, 8, 9 and filters relatively large dust 26 and impurities disposed on the outer surface side. And a second filter layer 11 disposed on the lower surface side of the first filter layer 11 for filtering fine dust 26 and impurities passing through the first filter layer 11.
And a third filtration layer 13 provided with activated carbon 16 which is disposed between the first filtration layer 11 and the second filtration layer 12 and has an odor. The filter layer main body 10 is made of a material that does not absorb oil, and the filter layer main body 10 is detachably attached to the outer peripheral surfaces of the filter papers 7, 8, and 9.

With such a configuration, relatively large dust and impurities are filtered by the first filtration layer 11 and the third
The fluid is deodorized and filtered by the filtration layer 13, and finer dust and impurities are filtered by the second filtration layer 12. When replacing the filter, the filter itself is not discarded, but only the filter layer main body 10 attached to the filter is removed and a new filter layer main body 10 is replaced. When the fluid is an oil or an oily solvent, the filter layer main body 10 does not absorb the oil, so that the incineration is easy. In addition, a double filtration layer composed of the filtration layer main body 10 and the filter paper 7 can filter the fluid more clearly.

According to a fourth aspect of the present invention, there is provided a filter body 1 formed according to any one of the first to third aspects.
Is characterized by being used as the filter body 1 for removing fiber waste and the like in the dry cleaning machine 51, comprising the filter 61 and the filtration layer body 10.
As a result, unlike the conventional case in which the entire filter is discarded, only the filter layer body 10 is discarded, so that the cost of disposal can be reduced, and environmental destruction and natural destruction due to filter disposal are prevented. Can be prevented.

Further, in the filter according to the fifth aspect,
The filter body 30 formed according to any one of claims 1 to 3 includes the filter 86 and the filter layer body 10, and is used for an oil filter body 3 in an engine of a vehicle or the like.
It is characterized in that it is used as 0. Therefore, unlike the conventional case in which the entire oil filter is discarded, only the filter layer main body 10 is discarded, so that the cost of disposal can be reduced, and environmental destruction and natural destruction due to filter disposal are prevented. Can be prevented.

In the filter according to the sixth aspect, the filter body 40 formed in the first or second aspect is composed of the filter 101 and the filter layer body 10, and is an air filter body around an engine of a vehicle or the like. 40
It is characterized by being used as Therefore, unlike the conventional case in which the entire air filter is discarded, only the filter layer main body 10 is discarded, so that the cost for disposal can be reduced, and environmental destruction and natural destruction due to filter disposal are prevented. Can be prevented.

The filter according to the seventh aspect is characterized in that the filter layer main body 10 is made of a nonwoven fabric. Thus, the filter layer main body 10 that does not absorb oil can be formed easily and at low cost. Further, since the filtration layer main body 10 is made of a nonwoven fabric, the filtration layer main body 10
Can be made lighter, so that the overall weight of the filter does not increase.

The filter according to claim 8 is characterized in that the first filtration layer 11 of the filtration layer main body 10 has a double raschel structure, and has a substantially honeycomb shape. Accordingly, the attached dust and impurities can be attached and held without dropping from the filter layer main body 10, and in the dry cleaning machine 51, an erroneous operation of stopping operation due to clogging of the pipe with the dust or the like can be prevented.

The filter according to the ninth aspect is characterized in that the first filtration layer 11 of the filtration layer main body 10 has a larger number of protrusions 20 than the lower base 19. Therefore, the fiber waste can be attached and held by the fiber waste being entangled with the projection 20.

Further, the filter according to the tenth aspect is characterized in that the first filtration layer 11 of the filtration layer main body 10 has a substantially honeycomb structure made of a nonwoven fabric.

In the filter according to the eleventh aspect,
It is characterized in that silica gel that absorbs moisture is mixed in the filtration layer main body 10. Thereby, the moisture mixed in the oily fluid can be absorbed by the silica gel, and the moisture can be removed from the oily fluid together with the dirt and fiber waste.

[0033]

Embodiments of the present invention will be described below with reference to the drawings. First, the configuration of the filter body 1 in which the present invention is applied to the filter 61 used in the dry cleaning machine 51 shown in FIG. 21 will be described. As shown in FIGS. 1 and 2, the filter main body 1 includes a conventional filter 61 and a filter layer main body 10 which is detachably attached to the outer surface of the filter paper 7 of the filter 61. The filter 61 is composed of a cylindrical body 2 having both ends opened as in the conventional example, and a paper filter paper 7 mounted on the outer surface of the body 3 of the body 2.
The structure of the body 2 is the same as the conventional example as shown in FIG. That is, a large number of through holes 4 are formed in the body 3 of the body 2 over the entire surface, and flange portions 5 are integrally formed at both ends as in the conventional case.

Here, the material of the body 2 of the filter 61 used so far is tinplate, but the body 2 to be newly produced and used in the future must be able to withstand aging because it is used many times. It is also possible to use stainless steel, aluminum, or the like that can be used. The filtration layer main body 10 for filtering the solvent for cleaning has a sheet-like shape and is flexible.

Next, the filter layer main body 10 detachably mounted on the outer peripheral surface of the filter paper 7 of the filter 61 will be described.
As shown in FIG. 6, the outer surface is called a double Russell, and the first filtration layer 11 that adheres and holds large dust such as large fiber waste, and the surface of the body 3 of the body 2 directly contacts and adheres fine dust. It comprises a second filtration layer 12 to be retained, and a third filtration layer 13 interposed between the first filtration layer 11 and the second filtration layer 12 to remove the odor of the solvent and adhere the dust. Have been.

The first filter layer 11 is made of a non-woven fabric. As shown in FIGS. 3 to 5, the first filter layer 11 has an upper base material 18 and a lower base material 19 which are substantially hexagonal. Is formed in a continuous form (a so-called honeycomb shape), and a thick warp 20 is knitted between the thick upper base 18 and lower base 19 innumerably. And the first
The concave portion 21 is formed by one hexagonal portion of the filtration layer 11 of FIG. The lateral dimension of the recess 21 is 1c
m is used. The height of the recess 21 is 6
mm. These dimensions of the concave portion 21 are preferable examples when used in the dry cleaning machine 51. Large debris such as fiber waste is held in the concave portion 21 of the first filtration layer 11 of the filtration layer main body 10. Here, for example, nylon is used as the material of the first filtration layer 11 made of a nonwoven fabric.

The third filtration layer 13 of the filtration layer body 10 is shown in FIG.
As shown in FIG. 5, the upper and lower sheets 15 made of non-woven fabric are used to form the activated carbon layer 16 into a sandwich structure. Here, the upper and lower sheets 15 of the third filtration layer 13 use, for example, polyester as a material, and have a basis weight of 3
0 g / m ² is used. Activated carbon layer 16
Of activated carbon is about 20 to 100 g / m ^2, are bonded integrally fixing and the activated carbon sheet 15 at 40 to 50 g / m ² approximately by an adhesive resin. The third filter layer 13 including the activated carbon layer 16 removes the odor of the solvent and attaches dust. Note that the third filtration layer 13 may be configured by mixing activated carbon into a single-layer sheet-like nonwoven fabric.

Further, the second filtration layer 1 of the filtration layer body 10
No. 2 is similarly made of a nonwoven fabric, and uses, for example, polypropylene as a material. The basis weight of the second filtration layer 12 is about 40 g / m ² . The eyes of the second filtration layer 12 are fine,
The fine dust in the solvent adheres to the solvent, and the solvent is filtered neatly.

As shown in FIG. 7, the filtration layer main body 10 includes a first filtration layer 11, a third filtration layer 13,
As shown in FIGS. 1 and 2, the filter 61 is detachably mounted on the outer peripheral surface of the filter paper 7 of the filter 61 in a state where the second filter layer 12 is laminated. FIG. 11 shows each filtration layer 1
FIG. 2 shows a plan view of a filtration layer main body 10 in which 1, 13, and 12 are stacked, and a vertical dimension of the filtration layer main body 10 is substantially the same as an axial length of the body 2, and a horizontal direction of the filtration layer main body 10. Is slightly longer than the circumferential length of the filter paper 7 in the mounted state.

As shown in FIG. 11, a pair of planar fasteners 23 and 24 are attached to both ends of the filter layer main body 10 over substantially the entire length in the vertical direction, and the surface of the filter 61 (the periphery of the filter paper 7) is provided. After the filtration layer main body 10 is wound on the surface (surface), the filter layer main body 10 is detachably and easily attached with the planar fasteners 23 and 24 on both sides. The filter 61 is attached to the filter paper 7 according to the above-described planar fasteners 23, 2 and 3.
It is not limited to four. For example, the filter layer main body 10 may be detachably attached to the filter 61 by sewing the end portions of the filter layer main body 10 once or a plurality of times with a synthetic resin thread. Further, since the filtration layer main body 10 filters a solvent as a fluid, each filtration layer 1
1, 13, and 12 do not fix the whole body by bonding or the like,
For example, as shown in FIG. 11, the filtration layers 11, 13, and 12 are fixed by sewing a thread made of a synthetic resin in a straight line or diagonally like a perforation 25. Further, instead of the thread, a dot-like adhesive fixing with an adhesive may be used.

FIG. 7 is an enlarged sectional view of the main part of the filtration layer main body 10, and the arrows in the figure indicate the direction in which the fluid (the solvent of the dry cleaning machine 51) flows. FIG. 8 shows a filter body 1 in which the filter layer body 10 is mounted on a filter 61.
9 is a cross-sectional view of the filter body 1 in the vertical direction, and FIG. 9 is a cross-sectional view of the filter body 1 in the horizontal direction.

Here, the first filtration layer 11, the second filtration layer 12, and the third filtration layer 13 constituting the filtration layer main body 10 are provided.
Uses the following: The first filtration layer 11 is a non-woven fabric manufactured by Asahi Kasei Kogyo Co., Ltd. and having a fabric name of Fusion.
The material is 100% nylon, a monofilament yarn is used, and the knitting structure is double Russell. The second filtration layer 12 is a nonwoven fabric manufactured by Asahi Kasei Kogyo Co., Ltd. and having a brand name of ELTAS. The material is a 100% spunbond nonwoven fabric (having a basis weight of 40 g / m ² E01040) or a 100% polypropylene spunbond nonwoven fabric (having a basis weight of 4%).
0 g / m ² P03040). The third filtration layer 13 is made of Asahi Kasei Kogyo Co., Ltd. and has a trade name of SEMIA, which is a nonwoven fabric made of ester and activated carbon, and having a sandwich structure of activated carbon. The basis weight is 120 g / m ² S
−3. Since the filter layer main body 10 is made of a lightweight nonwoven fabric, the filter 61 has the filter layer main body 1 attached thereto.
Even if 0 is attached, the overall weight does not become too heavy, and is not much different from the weight of the conventional filter 61.

The members constituting the filter layer main body 10 are preferably those described above, but are not limited thereto, and may be appropriately and arbitrarily determined according to the type and size of fiber waste and dust. Needless to say, it can be changed to

Next, the operation of the filter body 1 will be described. The filter body 1 is housed in a filter case 56 as shown in FIG. 23, and the oily solvent is removed by driving a pump 59 as shown in FIG.
8, drum 53, filter body 1, activated carbon case 57
Circulates to The fibrous waste and the lump of fiber waste discharged from the drum 53 adhere to the filter body 1 and the solvent is filtered and flows to the activated carbon case 57. Here, in the first filtration layer 11 of the filtration layer body 10 of the filter body 1, FIG.
0, the relatively large dust 26 is adhered and held in the recess 21 or the dust 26 having a size larger than the recess 21 is formed.
Is attached and held on the upper surface side of the upper base 18.

As shown in FIG. 8, the inside of the filter main body 1 is under a negative pressure so that the solvent flows from the filter layer main body 10 and the filter paper 7 through the through holes 4 of the body 3. It has become. Further, since the inside of the filter main body 1 has a negative pressure, the filtration layer main body 10 cannot be easily removed from the filter 61. First filtration layer 1 of filtration layer body 10
The solvent from which relatively large dust 26 has been removed in 1 is deodorized in the next third filtration layer 13 and the dust 26 adheres. The solvent that has passed through the third filter layer 13 is filtered by the second filter layer 12, and the second filter layer 12 attaches finer dust 26 that has passed through the third filter layer 13. I am trying to do it. Therefore, the solvent that has passed through the second filtration layer 12 is finely filtered. Of course, the solvent is further filtered also on the filter paper 7 mounted inside the filter layer main body 10. As described above, since the filter layer body 10 and the filter paper 7 have a double structure, the fluid (here, the solvent) can be more finely filtered.

Here, the first filtration layer 1 of the filtration layer main body 10 is used.
In FIG. 1, since relatively large dust 26 is adhered and held in the concave portion 21, the dust 26 hardly falls off from the filter body 1, and clogging of the pipe due to the fall of the dust 26 can be prevented. Therefore, the operation is not stopped due to a malfunction due to the pressure increase in the filter case 56. Further, since the filter layer main body 10 is made of a nonwoven fabric, it has good air permeability or flowability. Therefore, the pressure inside the filter case 56 does not rise excessively,
Operation stoppage due to malfunction due to pressure rise does not occur.

When replacing the filter body 1 in the dry cleaning machine 51, the pressure in the filter case 56 is constantly monitored, and the operation is automatically stopped when the pressure becomes higher than a predetermined value. I have. Therefore, the filter layer main body 1 made of non-woven fabric on the peripheral surface of the filter paper 7
Even if 0 is attached, the filtration layer main body 10 has good air permeability, and the rate of pressure increase in the filter case 56 is the same as that of the conventional filter 61 alone. Is the same as

As described above, the dry cleaning machine 5
When the filter body 1 is operated and the filter body 1 is clogged and replaced, the lid 65 is removed as in the conventional case. Then, after taking out the filter main body 1 from the filter case 56, by removing the planar fasteners 23 and 24 of the filtration layer main body 10 of the filter main body 1,
The filter layer main body 10 can be easily removed from the filter 61. Here, since the filter layer main body 10 is made of a nonwoven fabric such as nylon, polyester, or polyethylene, oil is not absorbed, and the filter layer main body 10 to which only fiber waste, dust 26, and the like are attached is removed from the filter 61. Will be.

Then, the new filter layer main body 10 is mounted on the peripheral surface of the filter paper 7 of the filter 61 by the sheet fasteners 23 and 24, and the filter body 1 having the filter layer main body 10 and the new filter main body 1 is mounted in the filter case 56. To be delivered to
Then, the operation of the dry cleaning machine 51 can be restarted. That is, only the filter layer main body 10 is replaced, and the filter 61 itself is used (recycled) repeatedly without replacement.

The filtration layer main body 10 to which a large amount of dust adheres may be discarded as it is, or may be washed at an office or the like to remove the dust and reused.
Here, when the used filter layer body 10 is discarded, conventionally, the filter 61 including the metal body 2 and the filter paper 7 is discarded and landfilled as industrial waste.
In the case of the present invention, it is possible to incinerate the filter layer main body 10 after use. In particular, the filter 61 using the metal body 2 and the like of the filter body 1 is reused without being discarded (recycling), and only the filtration layer body 10 is discarded. The disposal cost is very low unlike the conventional landfill. Therefore, the disposal cost added to the cleaning cost can be reduced, and as a result, the cleaning cost can be reduced, and ultimately a great benefit can be given to the consumer. In particular, by recycling the metal body 2 and the filter paper 7, which are the main components constituting the filter body 1, that is, the filter 61, resource saving can be achieved and cost can be reduced. Can be done.

Further, unlike the conventional case, the disposal of the filter layer main body 10 made of a nonwoven fabric is incinerated, so that no landfill site is required, and no environmental pollution or environmental destruction occurs. Furthermore, since the filter layer main body 10 is made of a non-woven fabric that does not absorb oil, it does not absorb oil. Therefore, the filter layer main body 10 is light and the transportation cost is low. Because it does not burn, very little pollution of the air.

Here, in the above embodiment, the filter layer main body 10 constituting the filter main body 1 is divided into the first filter layer 11, the second filter layer 12, and the third filter layer 13. Although the case of the structure has been described, the present invention is not limited to this. That is, the filtration layer main body 10 may be configured with only one of the first filtration layer 11, the second filtration layer 12, and the third filtration layer 13. For example, the filtration layer main body 10 is constituted only by the third filtration layer 13 (or the second filtration layer 12) provided with the activated carbon layer 16,
The third filter layer 13 (or the second filter layer 12) may be directly detachably mounted on the outer surface of the filter paper 7 of the filter 61 to constitute the filter body 1.

In the above description, activated carbon is mixed into the third filtration layer 13, but granular silica gel that absorbs moisture may be mixed instead of the activated carbon. The silica gel can absorb the water mixed in the oily solvent, and can simultaneously remove the water together with the dirt and fiber waste mixed in the solvent.

When the filter layer main body 10 is composed of one filter layer, silica gel may be mixed into the filter layer. Further, even when the filtration layer main body 10 is composed of two filtration layers, silica gel is mixed into two or any one of the filtration layers so that the water contained in the oily solvent is absorbed. May be.

In this case, if the filtration layer of the filtration layer main body 10 is too fine, the use of a filtration layer with too small a degree will deteriorate the flow of the fluid. This is because the dust becomes finer by attaching dust and the like during the operation, and it can be provided with a function as a filtration layer having a distribution property. Therefore,
As a constituent of the filtration layer main body 10, the roughness of the eyes is not particularly limited, and even a single filtration layer has a sufficient filtration function.

(Second Embodiment) FIG. 12 is a perspective view of an oil filter main body 30 according to a second embodiment of the present invention, and FIG. 13 is a sectional view of the oil filter main body 30. . The oil filter main body 30 is for cleaning lubricating oil circulating inside an engine of a vehicle or the like, and the oil filter main body 30 is mounted in a container (not shown).

The structure of the oil filter body 30 is as follows.
Although the fluid to be filtered is different, the configuration is basically the same as the configuration of the filter main body 1 of the previous embodiment, and the elements having the same functions are denoted by the same reference numerals, and detailed description is omitted.
However, the size of the oil filter main body 30 naturally differs depending on the size of the engine of the vehicle or the like. The oil filter main body 30 is made of a metal such as tinplate, stainless steel, aluminum or the like, and has a filter paper 8 attached to the outer peripheral surface of the body 3 of the cylindrical body 2 having one end opened as in the previous embodiment. An oil filter 86 and a filter layer main body 10 made of a nonwoven fabric that is detachably attached to the outer surface of the filter paper 8 of the oil filter 86.
This filtration layer main body 10 has the same configuration as the previous embodiment shown in FIGS. However, the roughness of the first filtration layer 11, the second filtration layer 12, and the third filtration layer 13 also differs depending on the size of the engine and the like.

The oil filter body 30 is
It can also be used for gasoline and diesel engines. In the case of a diesel engine, since light oil is used as fuel, the generated impurities are likely to combine to form a large lump. Therefore, the size of the concave portion 21 of the first filtration layer 11 of the filtration layer main body 10 is correspondingly large. I am trying to do it.

Here, the role of the oil filter main body 30 in this embodiment is a lubricating oil (engine oil).
It is to remove carbon particles in the inside, and to remove degraded products of the lubricating oil. The size of the carbon generated by the engine oil is about 1 μm to 10 μm for CC class and CD class lubricating oils.
In the class, it is 0.1 μm or less (70-80%).
The CC class lubricating oil is a lubricating oil used for a diesel engine used under somewhat severe conditions, and has a deposit preventing property, a rust / corrosion preventing property, and a sludge preventing property. The CD-class lubricating oil is a lubricating oil used in a diesel engine used under severe conditions, and has enhanced performance required for a lubricating oil in a diesel engine. The CF class lubricating oil is an off-road diesel engine oil intended for use of high sulfur (0.2%) diesel oil. Note that the above classifications such as the CC class, the CD class, and the CF class are part of the classification of quality standards for automotive lubricating oils set by the American Petroleum Institute (API).

At present, the hole diameter (fineness of the filter paper) of the oil filter of each maker does not change, but the size of the oil filter depends on the amount of oil (the size of the engine). The main filter has a pore size of 20
μm, and a bypass filter having a pore size of 5 μm are generally used. Therefore, the fineness of each of the filtration layers 11 to 13 of the filtration layer main body 10 used for the oil filter main body (main filter, bypass filter) 30 is also used accordingly.

As shown by the arrows in FIG. 13, the lubricating oil in the engine is applied to the filter layer main body 10 of the oil filter main body 30,
It flows out from the filter paper 8 through the opening 31 through the flow hole 4. Large impurities and dust adhere to the first filter layer 11 of the filter layer main body 10, and impurities and dust that have passed through the first filter layer 11 adhere to the third filter layer 13. Next, fine impurities and dust that have passed through the third filtration layer 13 adhere to the second filtration layer 12, and the lubricating oil is finely filtered by the filtration layer main body 10. Of course, the lubricating oil is further filtered on the filter paper 8.

The oil filter main body 30 is replaced for a certain period of time or when a predetermined traveling distance is reached. In this case, too, the oil filter 86 itself is not replaced and only the filter layer main body 10 is replaced with a new filter layer main body 10. Just exchange with Since the used filter layer main body 10 is formed of a nonwoven fabric that does not absorb oil, the filter layer main body 10 that does not absorb oil and adheres only impurities or dust is discarded. Also,
When the filtration layer main body 10 is replaced, the attachment and detachment can be easily performed by the planar fasteners 23 and 24 as in the previous embodiment. Also in the second embodiment, the previous embodiment (the filter body 1 of the dry cleaning machine 51).
Similarly to the above, only the filter layer main body 10 is discarded and incinerated without discarding the oil filter 86 itself or the entire oil filter main body 30. As a result, the same effects as in the previous embodiment can be obtained.

In the oil filter main body 30 used in an engine of a vehicle or the like, as shown in FIG. 13, a third filtration layer 13 having an activated carbon layer 16 in the filtration layer main body 10 is used. In particular, the first filtration layer 11 and the second filtration layer 12 may constitute the filtration layer main body 10 without using the third filtration layer 13. Further, the filtration layer main body 10 is divided into a first filtration layer 11, a second filtration layer 12,
May be configured by any one of the filtration layers 13.

Further, similarly to the above embodiment, silica gel may be mixed in place of the activated carbon of the third filtration layer 13. Further, when the filter layer main body 10 is constituted by one filter layer, silica gel may be mixed into the filter layer. Furthermore, even when the filtration layer main body 10 is composed of two filtration layers, silica gel is mixed into two or any one of the filtration layers to absorb water contained in engine oil. Is also good.

(Third Embodiment) FIGS. 14 and 15 show a third embodiment of the present invention, in which the present invention is applied to an air filter body 40 of a vehicle. In the air filter body 40, the conventional air filter 10
1 and a filter layer main body 10 made of a nonwoven fabric which is detachably attached to the outer surface of the filter paper 9 of the air filter 101. Therefore, also in this embodiment, the elements having the same functions as those in the first embodiment are denoted by the same reference numerals, and detailed description is omitted. In this embodiment, since it is applied to the air filter main body 40, the shape is different from that shown in FIGS. 1 and 12 and the fluid is air.
The function or action of 0 is the same.

In the air filter main body 40, the configuration of the filtration layer main body 10 is the same as that of the first filtration layer 11 and the second filtration layer 1.
2 and the third filtration layer 13 using the activated carbon layer 16 is not necessary, so the third filtration layer 13 is not used. The body 2 of the air filter main body 40 is also a flat cylindrical shape, and is made of a solid metal such as stainless steel or aluminum to withstand aging. Of course, a conventional tin body 2 may be used. Furthermore, it is natural that the first filter layer 11 and the second filter layer 12 of the filter layer main body 10 also have a different roughness than in the previous embodiment.

Here, the pore size (fineness) of the air filter currently used is as follows. The air filter (surface) is generally 45 μm, and the air filter (inside) is generally 80 μm. Therefore, the filtration layer main body 10 used for this air filter main body 40
The fineness of each of the filtration layers 11 and 12 is also used accordingly.

The air filter body 40 is replaced when the air filter main body 40 reaches a predetermined period or when a predetermined traveling distance is reached. In this case, the air filter 101 itself is reused, and only the filtration layer main body 10 is used for new filtration. Layer body 10
Just exchange with The used filter layer main body 10 is attached with insects, dust and dust, and the filter layer main body 10 is discarded. Also, when the filtration layer main body 10 is replaced, the attachment and detachment can be easily performed by the planar fasteners 23 and 24 as in the previous embodiment. Also in the third embodiment, similar to the previous embodiment (the filter body 1 and the oil filter body 30 of the dry cleaning machine 51),
The filter 101 such as the metal body 2 is recycled without discarding the entire air filter body 40, and only the filter layer body 10 is discarded and incinerated. Thereby, the same effects as those of the first and second embodiments are exerted.

In the air filter main body 40, the filtration layer main body 10 may be constituted by only one of the first filtration layer 11 and the second filtration layer 12.

(Fourth Embodiment) In the first and second embodiments, the filtration layer main body 10 is divided into the first filtration layer 11, the third filtration layer 13, and the second filtration layer 12. However, as shown in FIG. 16, the first filtration layer 11 and the second filtration layer 12 may constitute the filtration layer main body 10.

(Fifth Embodiment) As shown in FIG. 17, in the first and second embodiments, a third filtration layer provided with a first filtration layer 11 and an activated carbon layer 16 is provided. 13 may constitute the filtration layer main body 10. In FIGS. 16 and 17, since the filtration layer main body 10 is composed of two layers, the cost of the filtration layer main body 10 can be reduced as compared with the case of three layers. Of course, if the filtration layer main body 10 is composed of only one of the filtration layers, the cost can be further reduced.

(Sixth Embodiment) FIGS. 18 and 19 show a sixth embodiment. In this embodiment, the upper base material 18 on the upper side of the first filter layer 11 constituting the filter layer main body 10 is cut, or the first base layer 18 is cut at an intermediate portion in the vertical direction of the warp yarn 20 to form a first filter. The filter layer 11a is formed. The first filtration layer 11a may be used in place of the first filtration layer 11 in the first to fifth embodiments. In the first filtration layer 11a, the warp yarns 20 are erected upward, and in the dry cleaning machine 51, the fiber wastes are entangled with the warp yarns 20, so that the fiber wastes can be adsorbed and held. In the case of the oil filter main body 30 and the air filter main body 40, relatively large impurities, dust, insects, and the like can be attached and held by the first filtration layer 11a.

Although the upper part of the warp 20 of the first filtration layer 11 shown in FIGS. 18 and 19 is erected upward, the upper part of the warp 20 may have a hook shape. In each of the drawings of the above-described embodiments, the warp yarns 20 of the first filtration layer 11 are drawn to stand relatively apart from each other, but are actually clustered more densely. Also,
Each warp 20 may be entangled.

FIG. 20 shows the third filtration layer 13.
FIG. 3 is an enlarged perspective view of a main part when the first filtration layer 11 is formed of a substantially honeycomb structure (honeycomb structure) using the same material as that of FIG. Further, the material of the second filtration layer 12 may be similarly configured.

The filter layer body 10 used for the filter body 1, the oil filter body 30, and the air filter body 40 is made of a non-woven fabric that does not absorb oil. , Second
Any of nylon, polyester, polypropylene and the like may be used as a material of the filtration layer 12 and the third filtration layer 13). Further, the material of the filtration layer main body 10 is not limited to a nonwoven fabric. For example, the other material that does not absorb oil is a synthetic resin having flexibility, and the filter layer main body 1 is made of a synthetic resin having flexibility.
0 may be configured. In addition, the filtration layer body 10
Only the first filtration layer 11 may be formed of a synthetic resin.
This is because the second filtration layer 12 is required to have fluidity of a fluid such as liquid or air, and from this point, the second filtration layer 1
A preferable example of the second and third filtration layers 13 is a nonwoven fabric. Of course, from the viewpoint of cost and the like, it is preferable that each of the filtration layers 11, 12, and 13 constituting the filtration layer main body 10 be formed of a nonwoven fabric.

As described above, the case where the filtration layer main body 10 is applied to the filter main body 1 of the dry cleaning machine 51, the oil filter main body 30 around the engine of a vehicle or the like, and the air filter main body 40 has been described. The filter layer main body 10 can be applied to other filters that block the flow of dust and the like to filter the fluid.

As will be described repeatedly, the filter layer main body 1 is made of a synthetic resin non-woven fabric on the outer surface of the filter paper.
In the case where 0 is attached, it is also within the scope of the present invention to configure the filtration layer main body 10 with one filtration layer formed of an arbitrary nonwoven fabric. In addition, the type of the nonwoven fabric of the filtration layer main body 10 in the case of one layer is not limited to the type described in each of the above embodiments, and may be appropriately set or changed according to the size of dust and impurities floating in the fluid. This is also included in the scope of the present invention.

[0078]

According to the present invention, for example, in a dry cleaning machine, when the used filter layer body is discarded, conventionally, the filter including the metal body and the filter paper is discarded and landfilled as industrial waste. However, in the case of the present invention, it is possible to incinerate the main body of the filtration layer. In particular, the filter made of metal body and filter paper etc. is reused without being discarded (recycling), and only the filter layer main body is discarded, and incineration is performed. Unlike that, it is very cheap. for that reason,
The disposal cost added to the cleaning cost can be reduced, and as a result, the cleaning cost can be reduced, and ultimately a great benefit can be provided to the consumer. Further, unlike the conventional case, since the disposal of the filter layer body made of a nonwoven fabric can be incinerated, no landfill site is required, and no environmental pollution or environmental destruction occurs. Furthermore, since the filter layer main body is made of a non-woven fabric that does not absorb oil, it does not absorb oil unlike the related art. for that reason,
The filter layer main body is light, the transportation cost is low, and since it does not burn oil during incineration, it does not pollute the air very much. In particular, by recycling the filter itself, resources can be saved and the cost can be reduced.

When the filter layer body made of non-woven fabric is applied to an oil filter or an air filter of a vehicle or the like, the oil filter and the air filter are not discarded but the filter itself is reused as it is. Therefore, the cost can be reduced because only the filter layer main body is replaced, and the filter layer main body can be incinerated, and unlike the case of landfill, environmental pollution and environmental destruction do not occur. In particular, by recycling the filter itself, resources can be saved and the cost can be reduced.

In particular, when the filtration layer of the filtration layer main body is formed as a single layer, it is more advantageous in terms of cost than the case where the filtration layer is formed as a plurality of layers. In addition, the cost can be reduced to about て as compared with the case of two layers.

By mixing silica gel into the filter layer main body, it is possible to simultaneously absorb water contained in an oily solvent or engine oil.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view of a filter body used in a dry cleaning machine according to an embodiment of the present invention.

FIG. 2 is a perspective view of a filter main body used in the dry cleaning machine according to the embodiment of the present invention.

FIG. 3 is a diagram illustrating a first example of a filter layer main body of a filter main body used in a dry cleaning machine according to an embodiment of the present invention.
It is a principal part enlarged plan view of the filtration layer of FIG.

FIG. 4 is a diagram illustrating a first example of a filter layer main body of a filter main body used in a dry cleaning machine according to an embodiment of the present invention.
It is a principal part expansion perspective view of the filtration layer of FIG.

FIG. 5 is a diagram illustrating a first example of a filter layer main body of a filter main body used in a dry cleaning machine according to an embodiment of the present invention.
It is a side view of the filtration layer of.

FIG. 6 is an enlarged exploded sectional view of a main part of a filter layer main body of a filter main body used in the dry cleaning machine according to the embodiment of the present invention.

FIG. 7 is an explanatory diagram showing a direction in which fluid flows in a filtration layer main body of a filter main body used in the dry cleaning machine according to the embodiment of the present invention.

FIG. 8 is a longitudinal sectional view of a filter main body used in the dry cleaning machine according to the embodiment of the present invention.

FIG. 9 is a lateral sectional view of a filter body used in the dry cleaning machine according to the embodiment of the present invention.

FIG. 10 is an explanatory diagram showing a state in which dust is adsorbed and held on the first filtration layer of the filter body used in the dry cleaning machine according to the embodiment of the present invention.

FIG. 11 is a plan view of a filtration layer main body of the filter main body used in the dry cleaning machine according to the embodiment of the present invention.

FIG. 12 is a perspective view of an oil filter main body used in the engine according to the second embodiment of the present invention.

FIG. 13 is a sectional view of an oil filter main body used in the engine according to the second embodiment of the present invention.

FIG. 14 is a perspective view of an air filter body used around an engine according to a third embodiment of the present invention.

FIG. 15 is a sectional view of an air filter main body used around an engine according to a third embodiment of the present invention.

FIG. 16 is an enlarged sectional view of a main part of a filtration layer main body according to a fourth embodiment of the present invention.

FIG. 17 is an enlarged sectional view of a main part of a filtration layer main body according to a fifth embodiment of the present invention.

FIG. 18 is an enlarged sectional view of a main part of a first filtration layer constituting a filtration layer main body according to a sixth embodiment of the present invention.

FIG. 19 is an enlarged perspective view of a main part of a first filtration layer constituting a filtration layer main body according to a sixth embodiment of the present invention.

FIG. 20 is an enlarged perspective view of a main part when a first filtration layer is formed from the material of the third filtration layer of the present invention.

FIG. 21 is a front view of the dry cleaning machine.

FIG. 22 is a schematic block diagram illustrating a flow of a solvent in the dry cleaning machine.

FIG. 23 is an exploded perspective view showing a stored state of a filter of the dry cleaning machine.

FIG. 24 is a perspective view of a filter used in a conventional dry cleaning machine.

FIG. 25 is a side view of a body of a filter used in a conventional dry cleaning machine.

FIG. 26 is a sectional view of a filter used in a conventional dry cleaning machine.

FIG. 27 is a schematic block diagram of an engine in which an oil filter is used.

FIG. 28 is a perspective view of an oil filter used in an engine of a conventional vehicle or the like.

FIG. 29 is a schematic block diagram showing the flow of air when an air filter is used.

FIG. 30 is a perspective view of an air filter used in a conventional vehicle or the like.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Filter main body 2 Body 4 Flow hole 7 Filter paper 8 Filter paper 9 Filter paper 10 Filtration layer main body 11 1st filtration layer 12 2nd filtration layer 13 3rd filtration layer 16 Activated carbon layer 19 Lower base material 20 Warp ( Protrusions) 26 Dust 30 Oil filter body 40 Air filter body 51 Dry cleaning machine 61 Filter 86 Oil filter 101 Air filter

Claims (11)

[Claims] 1. A cylindrical body (2) having a large number of holes (4), and a paper body mounted on the outer peripheral surface of the body (2) and filtering a fluid containing dust (26) and impurities. The filter paper (7) comprising the filter paper (7), (8) and (9);
(8) In a filter for filtering a fluid through (9) and the hole (4) of the body (2), a filter layer main body (10) for filtering a fluid containing dust (26) and impurities is constituted. The material of the filter layer main body (10) is made of a material that does not absorb oil, and the filter layer main body (10) is detachably mounted on the outer peripheral surface of the filter paper (7) (8) (9). A filter characterized by the following. 2. A cylindrical body (2) having a large number of holes (4), and a paper body mounted on an outer peripheral surface of the body (2) and filtering a fluid containing dust (26) and impurities. The filter paper (7) comprising the filter paper (7), (8) and (9);
(8) In a filter for filtering a fluid through (9) and the hole (4) of the body (2), a first filtration layer (26) disposed on the outer surface side for filtering relatively large dust (26) and impurities. 11) and a second filtration layer (12) disposed on the lower surface side of the first filtration layer (11) and filtering fine dust (26) and impurities passing through the first filtration layer (11). Constitute the filtration layer main body (10), and the filtration layer main body (10)
The filter is characterized in that the filter is made of a material that does not absorb oil, and the filter layer body (10) is detachably mounted on the outer peripheral surface of the filter paper (7) (8) (9). 3. A cylindrical body (2) having a large number of holes (4), and a paper body mounted on an outer peripheral surface of the body (2) and filtering a fluid containing dust (26) and impurities. The filter paper (7) comprising the filter paper (7), (8) and (9);
(8) In a filter for filtering a fluid through (9) and the hole (4) of the body (2), a first filtration layer (26) disposed on the outer surface side for filtering relatively large dust (26) and impurities. 11) and a second filtration layer (12) disposed on the lower surface side of the first filtration layer (11) and filtering fine dust (26) and impurities passing through the first filtration layer (11). ,
A filter layer body (10) comprising a third filter layer (13) provided between the first filter layer (11) and the second filter layer (12) and provided with activated carbon (16) which takes off odor; The material of the filter layer main body (10) is made of a material that does not absorb oil, and the filter layer main body (10) is formed of the filter paper (7).
(8) A filter which is detachably attached to the outer peripheral surface of (9). 4. The filter body (1) formed according to any one of claims 1 to 3, wherein the filter body (1) is the filter (61).
And a filter layer main body (10), which is used as a filter main body (1) for removing fiber waste and the like in a dry cleaning machine (51). 5. The filter body (30) formed according to any one of claims 1 to 3, wherein the filter body (30) is provided with the filter (8).
6) and a filter layer main body (10), which is used as an oil filter main body (30) in an engine of a vehicle or the like. 6. The filter (101) according to claim 1, wherein the filter body (40) formed according to claim 1 or 2 is provided.
And a filter layer main body (10), which is used as an air filter main body (40) around an engine of a vehicle or the like. 7. The filter according to claim 1, wherein the filtration layer main body (10) is made of a nonwoven fabric. 8. The filter according to claim 7, wherein the first filter layer (11) of the filter layer body (10) has a double raschel structure and has a substantially honeycomb shape. 9. The first filter layer (11) of the filter layer body (10) has a larger number of protrusions (20) than the lower base (19).
The filter according to any one of claims 1 to 7, wherein the filter is provided upright. 10. The filter according to claim 1, wherein the first filter layer (11) of the filter layer main body (10) is made of a non-woven fabric and has a substantially honeycomb structure. 11. The filter according to claim 1, wherein silica gel that absorbs moisture is mixed in the filter layer main body (10).