JP4240447B2 - filter - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a filter used in an air conditioner installed in a room such as an automobile, an office, a hospital, or a home.
[0002]
[Prior art]
There exists a filter shown in FIG. 4 as a filter used for an air conditioner. The filter 19 includes a frame portion 19a and a filter material portion 19b that is folded. The frame portion 19 a includes a resin frame 20, and the filter medium portion 19 b is attached to the inside of the frame 20. An elastic body 4 such as urethane is provided on the side surface of the frame 20 for the purpose of filling a gap between the duct 19 or the air conditioning circuit where the filter 19 is mounted, or vibration isolation. A projection (handle) 20a is provided on the end surface of the frame 20 in order to remove the filter 19 from a duct or the like.
[0003]
[Problems to be solved by the invention]
However, in the conventional filter, since the filter medium part and the frame are configured as separate parts, the number of parts increases and the number of assembly steps also increases. Further, since the frame is a resin molded product, the cost increases, such as the need for a mold. However, if the frame is eliminated and the filter is configured with only the filter medium, the filter has insufficient rigidity, and the predetermined shape may not be maintained in the air conditioner, and the attachment / detachment may be hindered. is there.
[0004]
Therefore, the present invention provides a filter that can sufficiently reinforce the filter medium part without using a resin frame, and can reduce the number of steps required for manufacturing and assembling the resin frame, thereby reducing the cost. The purpose is to provide.
[0005]
[Means for Solving the Problems]
The present invention will be described below. In order to facilitate understanding of the present invention, reference numerals in the accompanying drawings are appended in parentheses, but the present invention is not limited to the illustrated embodiment.
[0006]
The filter (1f) of the present invention includes a filter material portion (2) folded and a reinforcing material (16) attached to at least a side surface of the filter material portion along the fold folding direction of the outer periphery of the filter material portion. The reinforcing member is provided with a notch portion (18) partitioned into a predetermined width by a cut line (18a, 18a) in a part of the reinforcing member, and the notch portion includes the notch portion. The handle (17) is formed in a state that it can be folded on the outer periphery of the filter medium part along a score line and is bent on the outer periphery of the filter medium part.
[0009]
In this way, the outer periphery of the filter medium part is covered with a reinforcing material, and the cutout part can be used as a handle only by providing a cutout part in the part of the reinforcing material, so the man-hours required for manufacturing the filter can be reduced. Since it can be reduced, the cost can be reduced. Further, the filter can be easily pulled out from the duct or the like of the air conditioner by bending and causing the handle of the notch that functions as a handle along the cut line. Moreover, since the handle is a part of the reinforcing material, it does not get in the way if it is returned to its original position after being folded.
[0010]
The filter medium part and the reinforcing material may be made of the same material.
[0011]
According to this invention, since the filter medium portion and the reinforcing material are made of the same material, it is not necessary to separate the parts constituting the filter when the filter medium is recycled as a recycled product.
[0012]
The reinforcing material itself may have a sealing property.
[0013]
According to the present invention, the parts constituting the filter can be simplified by using a material having a sealing property for the reinforcing material itself such as urethane and nonwoven fabric.
[0014]
Moreover, you may provide a notch | incision (21) in a part of reinforcement material affixed on the side surface along the said fold folding direction.
[0015]
According to the present invention, the filter can be bent or deformed, so that the filter can be flexibly adapted and mounted in accordance with a filter mounting shape such as a duct.
[0016]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the filter according to the present invention will be described in detail. FIG. 1 is a perspective view of a filter medium part included in a filter according to a first embodiment of the present invention.
[0017]
As shown in the figure, the filter medium portion 2 has a rectangular shape, and is formed by repeatedly folding the filter medium 2a such as filter paper or nonwoven fabric along one direction. In addition, a reinforcing material is attached to the side surfaces 2b and 2b orthogonal to the folded direction of the filter medium portion 2 in order to maintain the pitch P formed on the filter medium 2a. Further, a sealing material may be provided on the surface of the reinforcing material.
[0018]
The reinforcing material is in the form of a tape, and a synthetic resin such as polyethylene or polypropylene or the same material as the filter medium 2a of the filter medium part 2 is preferably used as the material. The reinforcing material may be a flexible material that can be folded. For example, tape, urethane, non-woven fabric and the like. For joining the reinforcing material and the filter medium part 2, for example, an adhesive such as hot melt is preferably used.
[0019]
As shown above, the filter has a rectangular filter medium part 2, reinforcing materials provided on the side surfaces 2 b and 2 b orthogonal to the fold-folded direction of the filter medium part 2, and surfaces of those reinforcing materials. And a provided sealing material.
[0020]
Moreover, the handle 3a which protrudes beyond the end surface 2c regarding the fold folding direction of the filter medium part 2 is formed at one end of the reinforcing material provided on each side surface 2b of the filter medium part. The handle 3a is folded on the end face.
[0021]
In addition, the handle 3a connects the handles to each other to prevent lifting from both end faces.
[0022]
FIG. 2 shows an embodiment in which the tips of the folded handles are joined together.
[0023]
In the embodiment of FIG. 2A, a mushroom-shaped protrusion 10 is provided at the tip of one handle 3a, and a keyhole-shaped notch 11 is provided in the other handle 3a. According to this embodiment, the tips of the handles 3 a and 3 a are connected to each other by inserting the protrusion 10 into the notch 11.
[0024]
In the embodiment of FIG. 2 (b), the tip of each handle 3a is formed in an L shape, and both convex portions 12 and 13 are inserted into the other notches 12a and 13a so that both handles 3a and 3a are mutually connected. They are connected.
[0025]
In the embodiment of FIG. 2 (c), the respective tips of the handles are divided into two regions 14a, 14b, 15a, and 15b along a cut line PL that bisects the width direction (vertical direction in the figure). is doing. One region divided by these cut lines PL, that is, the upper region 14b of the cut line PL in the left handle 3a in FIG. 2C, and the lower region of the cut line PL in the right handle 3a. Cuts 14c and 15c are respectively provided in 15b so as to be orthogonal to the cut line PL. Then, the other regions 14a and 15a divided by the cut line PL of each handle 3a are inserted into the cuts 14c and 15c of the other handle 3a, respectively, and both the handles 3a and 3a are connected to each other.
[0026]
2 (b) or 2 (c) indicates a range where the handles 3a and 3a are overlapped with each other.
[0027]
The filter 1 configured as described above is inserted into a duct or an air conditioning circuit of the air conditioner with the end face of the filter medium portion 2 on the side opposite to the side of the joint functioning as a handle at the top. And if the filter 1 is mounted | worn in the predetermined position in a duct or an air conditioning circuit, the handle 3a will be folded on the end surface 2c of the filter-medium part 2, and filter attachment ports, such as a duct, will be closed. When removing the filter 1, the protrusions 10, the convex portions 12 and 13, and the regions 14 a and 15 a that function as the handle 3 a are caused, and the filter 1 can be easily taken out from the duct or the like by pulling the handle 3 a.
[0028]
FIG. 3 shows the overall configuration of a filter according to the second embodiment of the present invention. 3A is a plan view of the filter, FIG. 3B is a front view of the filter, and FIG. 3C is a left side view of the filter. In FIG. 3, the same reference numerals are given to portions common to FIG. 1, and description thereof is omitted.
[0029]
In the filter 1 f of FIG. 3, the reinforcing material 16 is provided so as to go around the outer periphery of the filter medium portion 2. The reinforcing material 16 is preferably made of a flexible material such as urethane or non-woven fabric. The material of the reinforcing material 16 may be the same material as that of the filter material of the filter material part 2. For joining the reinforcing material 16 and the filter material part 2, for example, an adhesive such as hot melt is preferably used. Further, when the reinforcing material 16 has a sealing property such as urethane or nonwoven fabric as in the present embodiment, the sealing material 4 as in the first embodiment is not necessary.
[0030]
Of the reinforcing material 16 provided on the outer periphery of the filter medium part 2, a rectangular cutout 18 is provided in a part of the reinforcing material 16 provided on the one end face 2 c side in the folded direction. The notch 18 is partitioned into a predetermined width by the cut lines 18a and 18a. A portion defined by the cut lines 18 a and 18 a is a handle 17. The handle 17 can be bent on the outer periphery of the filter medium portion 2 along the cut lines 18a and 18a. This handle 17 is bent and used when the filter 1f is removed from a duct or the like.
[0031]
Further, among the reinforcing members 16 provided on the outer periphery of the filter medium portion 2, a notch 21 having a predetermined depth so as to divide the reinforcing member into the central portions of the reinforcing members provided on both side surfaces in the fold-folded direction. , 21 may be provided. By providing the cuts 21 and 21, the filter 1f can be bent.
[0032]
The present invention is not limited to the above embodiment, and may be implemented in various forms. The range in which the reinforcing material is provided can be changed as appropriate.
[0033]
【The invention's effect】
As described above, according to the present invention, since a tape-shaped reinforcing material is pasted instead of the resin frame, the man-hours required for manufacturing and assembling the frame while sufficiently reinforcing the filter medium portion. To reduce costs. The filter can be easily pulled out by causing the handle of the reinforcing material folded on the end face of the filter medium part. In addition, since the handle provided in the reinforcing material is folded on the end face of the filter medium part, the reinforcing material is not covered on the pleats of the filter medium part, and the folded part can be easily used while the filter is accommodated in the apparatus. Can be caused to. The length of the folded portion of the reinforcing material can be sufficiently secured.
[Brief description of the drawings]
FIG. 1 is a perspective view of a filter medium part included in a filter according to a first embodiment of the present invention.
FIG. 2 is a view showing an embodiment in which tips of folded reinforcing members are joined together.
FIG. 3 is an overall configuration diagram of a filter according to a second embodiment of the present invention.
FIG. 4 is a diagram showing an example of a filter as a comparison target of the present invention.
[Explanation of symbols]
1f Filter 2 Filter medium part 16 Reinforcing material 3a, 17 Handle 18 Notch part 21 Notch

Claims (4)

A folded filter medium part;
Of the outer periphery of the filter medium part, comprising at least a reinforcing material attached to the side surface along the fold direction of the filter medium part,
The reinforcing material is provided with a notch portion that is partitioned into a predetermined width by a cut line in a part of the reinforcing material,
The said notch part can be bend | folded on the outer periphery of the said filter medium part along the said cut line, and forms a handle in the state bent on the outer periphery of the said filter medium part, The filter characterized by the above-mentioned. The filter according to claim 1, wherein the filter medium part and the reinforcing material are made of the same material. Filter according to claim 1 or 2, wherein the reinforcing material itself is provided with a sealing property. The filter according to any one of claims 1 to 3 , wherein a cut is provided in a part of the reinforcing material attached to a side surface along the fold-folding direction of the filter material portion.

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