JP2017176940A - Filter structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a filter structure which can be adjusted for sizes of various objects.SOLUTION: A filter structure 1 comprises a regular square-shaped filter body 2, and an adhesive part 3. The adhesive part 3 is formed in such a manner that an adhesive is coated on one face of the filter body 2. Further, the adhesive part 3 is formed into a belt-like form having a constant width, and includes a first lattice part 31, a second lattice part 32, a third lattice part 33 and a fourth lattice part 34 which have a lattice shape . The first lattice part 31 is located in a first region R1, and is coated in a lattice shape of 3×3 with a position of less than a constant width from an outer periphery of the first region R1 as an outer edge, whereby nine sections are formed. Widths of nine sections are so set as to be gradually larger in the order of a center side, an outer side and the middle. The second lattice part is formed symmetrically to the first lattice part with respect to a second line. The third lattice part and the fourth lattice part are formed symmetrically to the first lattice part and the second lattice part respectively with respect to a first line.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a filter structure, and more particularly to a filter structure for cutting out all or a part of the filter structure and sticking it to an object to filter the gas passing therethrough.

  2. Description of the Related Art Various types of ventilation port filters that prevent dust contamination of ventilation ports for indoor ventilation have been proposed.

  For example, Patent Document 1 proposes a filter for a ventilation opening, which is made by partially applying a transparent adhesive to a non-woven fabric and sticking the adhesive-coated surface to the ventilation opening. ing. In addition, when the filter for a ventilation port of Patent Document 1 is used after being attached to the ventilation port, dirt adheres to the non-woven fabric of the breathable portion where the adhesive is not applied, and the portion turns black. To go. On the other hand, since it is difficult for dirt to adhere to the non-woven fabric in the part where the adhesive is applied, the part floats white, indicating that the filter for the ventilation port is being replaced.

  Moreover, in patent document 1, according to the magnitude | size of a vent hole, it cuts circularly along the adhesive apply | coated to the ring shape, or cuts rectangularly along the adhesive apply | coated to the rectangular frame shape. Size adjustment has been proposed.

  In addition, the following filter structure has been proposed.

  FIG. 13 is a partial plan view showing a schematic external shape of a conventional filter structure. With reference to the figure, a ventilator filter in which the number of rectangular frames, that is, the number of grids is increased, has also been proposed.

Design Registration No. 1481366

  However, in the conventional filter structure as shown in FIG. 13, for example, it is used in a state where the entire width is W109, or a part is cut along the grid band and used in the width W132, W133 or W134. However, the width W120 of each grid section is set to be uniform, and the cut-out width may not be adjusted to the size of the ventilation port.

  The present invention has been made to solve the above-described problems, and provides a filter structure that can be varied in width according to how to cut and can be adjusted to various object sizes. With the goal.

  In order to achieve the above-mentioned object, the invention according to claim 1 is a filter structure for filtering a gas that passes by attaching a part or all of a cut-out part to an object, A filter body made of a sheet having a rectangular shape extending in a first direction and a second direction orthogonal to the first direction in a plan view, and an adhesive part formed by applying an adhesive on one surface of the filter body. The adhesive portion is formed in a band shape having a constant width, and a right-angled quadrilateral shape is divided into four equal parts by a first line passing through the center in the first direction and a second line passing through the center in the second direction. It is arranged in the first region of the region, and is applied to a 3 × 3 grid pattern extending in the first direction and the second direction with the outer edge as a position less than a certain width from the outer periphery of the first region, and nine sections are formed. The first direction width and the second direction of the nine sections formed At least one of the widths is formed symmetrically with respect to the first lattice portion with respect to the first lattice portion and the second line that are set to increase in the order of the center side, the outward side, and the center, respectively. And a third lattice portion and a fourth lattice portion formed symmetrically with the first lattice portion and the second lattice portion, respectively, with respect to the first line.

  If comprised in this way, compared with the case where the width | variety of each division is made equal width, in the case where it cuts into two on the left side in the 1st grating | lattice part, and the cut-out width in the case of cutting off to the right two side, The cutting width or the like can be made different or almost uniform between the second grid portions and the second grid portion.

  According to a second aspect of the present invention, in the configuration of the first aspect of the invention, the right-angled square shape is a square, and the width from the outer side end of the first grid part to the outer side end of the second grid part. Is 300.0 mm, the constant width is 8.0 mm, the width between the first grating portion and the second grating portion is 5.0 mm, and the first direction width of the section of the first grating portion Are set to 35.5 mm, 38.0 mm and 42.0 mm for the center side, the outer side and the middle, respectively.

  If comprised in this way, the thing of the size as close as possible to the 10cm, 15cm, and 20cm size used well will be obtained by cutting out for two divisions, three divisions, and four divisions.

  According to a third aspect of the present invention, in the configuration of the first or second aspect of the present invention, the adhesive portion is further provided so as to overlap at least a part of the lattice-shaped belt, and the filter structure is replaced at a time. The label part which the adhesive was apply | coated to the label | marker shape which shows this, and the outline part which is provided in the circumference | surroundings of the label part and is not apply | coated with the adhesive is included.

  If comprised in this way, with use, dust and oil will adhere to the gap | interval part to which the adhesive around a marker part is not apply | coated.

  The invention according to claim 4 is a filter structure for filtering a gas that passes by attaching a part or all of the cut part to an object, and a filter body formed in a sheet shape. , Between the adhesive part where the adhesive is applied on a part of one side of the filter body, the label part where the adhesive is applied in a marker indicating the replacement time of the filter structure, and between the adhesive part and the label part Provided with a width of 4 mm or more and a non-adhesive part to which an adhesive is not applied.

  If comprised in this way, it will become easy to adhere dust dirt to the circumference | surroundings of a label | marker part according to use.

  As described above, the invention according to claim 1 can be adjusted to various object sizes because the width can be made different or almost uniform according to the cutting method.

  In addition to the effects of the invention described in claim 1, the invention described in claim 2 has a size as close as possible to the 10 cm, 15 cm, and 20 cm sizes that are often used during cutting, so the difference from these various sizes. Can be suppressed.

  In addition to the effects of the invention described in claim 1 or 2, the invention described in claim 3 causes dust or oil to adhere to the gap around the marker portion where the adhesive is not applied. As the use progresses, the marker part is lifted by dust or oil, and the time for replacing the filter structure can be indicated.

  According to the fourth aspect of the present invention, dust dirt easily adheres to the periphery of the marking portion according to use, and therefore the marking portion is likely to be lifted by dust or oil as the use proceeds, and indicates the time to replace the filter structure. Can do.

It is the top view which showed the external appearance shape of the filter structure by 1st Embodiment of this invention. It is the front view which looked at the filter structure shown in FIG. 1 in the direction of arrow II. It is an end view of the III-III line in FIG. It is a partial top view which shows the dimensional relationship of the filter structure shown in FIG. It is another partial top view which shows the dimensional relationship of the filter structure shown in FIG. It is a figure which illustrates the cutting pattern in the case of cutting a filter structure in 2 divisions. It is a figure which illustrates the cutting pattern in the case of cutting a filter structure in 3 divisions. It is a figure which illustrates the cutting pattern in the case of cutting a filter structure in 4 divisions. FIG. 2 is an enlarged view of a P1 portion shown in FIG. 1. FIG. 2 is an enlarged view of a P2 portion shown in FIG. 1. It is a rear view which shows the external appearance of the filter structure after use. It is a schematic diagram explaining the relationship between the width | variety of a non-adhesion part and the adhesion | attachment of dirt, (a) shows the case where the width | variety of a non-adhesion part is set to 4 mm or more, (b) is a non-adhesion part. The case where the width is set to less than 4 mm is shown. It is the fragmentary top view which showed the typical external appearance shape of the conventional filter structure.

  FIG. 1 is a plan view showing the external shape of a filter structure according to the first embodiment of the present invention, and FIG. 2 is a front view of the filter structure shown in FIG. 3 is an end view taken along line III-III in FIG. 1, and FIG. 4 is a partial plan view showing a dimensional relationship of the filter structure shown in FIG.

  Referring to these drawings, a filter structure 1 is for filtering a gas that passes by attaching a part of the filter structure 1 or a whole part to an object such as a ventilation opening. 2 and the adhesive part 3.

  The filter body 2 is made of a flexible nonwoven fabric or the like, and is formed in a square sheet shape extending in the first direction X and the second direction Y orthogonal to the first direction X in plan view.

  The adhesive portion 3 is formed by applying an adhesive (such as an acrylic adhesive) on one surface of the filter body 2.

  The adhesive portion 3 is formed in a strip shape having a constant width W1, W2 = 8.0 mm, and has four lattice portions having a lattice shape, that is, a first lattice portion 31, a second lattice portion 32, and a third lattice. Part 33 and a fourth lattice part 34.

  Specifically, the first lattice unit 31 has a rectangular shape of the filter body 2 as a first line H passing through the center in the first direction and a second line V passing through the center in the second direction. Is arranged in the first region R1 of the four regions divided into four. Further, the first grid portion 31 is applied in a 3 × 3 grid shape extending in the first direction X and the second direction Y, with the outer edges of the positions less than the constant widths W1 and W2 from the outer periphery of the first region R1. Nine sections are formed. More specifically, the position of the outer edge of the first grating portion 31 is set to a position (W5) of about 2.5 mm from the outer periphery of the first region R1.

  The first direction widths of the nine sections are set to 38.0 mm, 42.0 mm, and 35.5 mm for the outer side W11, the middle W12, and the center side W13 of the filter body 2, respectively.

  Similarly, the widths of the nine sections in the second direction are also set to 38.0 mm, 42.0 mm, and 35.5 mm for the outer side W21, the middle W22, and the center side W23 of the filter body 2, respectively. .

  Thus, the first direction width of the nine sections is set to increase in the order of the center side W13, the outer side W11, and the middle W12. Further, the second direction widths of the nine sections are set to increase in the order of the center side W23, the outer side W21, and the middle W22.

  The second lattice portion 32 is formed symmetrically with the first lattice portion 31 with respect to the second line V.

  A width W7 between the first grating portion 31 and the second grating portion 32 is set to 5.0 mm. Regarding the second direction Y, the width W9 from the outer side end of the first grid part 31 to the outer side end of the second grid part 32 is set to 300.0 mm.

  The third lattice portion 33 and the fourth lattice portion 34 are formed symmetrically with the first lattice portion 31 and the second lattice portion 32 with respect to the first line H, respectively.

  If comprised in this way, compared with the case where the width | variety of each division is made equal width, in the case where it cuts into two on the left side in the 1st grating | lattice part, and the cut-out width in the case of cutting off to the right two side, The cutting width or the like can be made different or almost uniform between the second grid portions and the second grid portion.

  For this reason, the width | variety can be varied according to how to cut out, and it can adjust to the size of various objects.

  In particular, it is desirable that such a filter structure can be cut into sizes of 10 cm, 15 cm, 20 cm, and 30 cm in terms of various sizes of ventilation openings. Accordingly, the cut-out size of the filter structure 1 is examined as follows.

  FIG. 5 is another partial plan view showing the dimensional relationship of the filter structure shown in FIG.

  Referring to FIG. 4 in addition to FIG. 5, when the entire filter structure is used without being cut out at all, its width is approximately W9 = 300.0 mm.

  Next, when cutting out in two sections from the outer side of the first lattice part including the belt-like part, the width W32 is 104.0 mm (= W2 + W21 + W2 + W22 + W2 = 8.0 + 38.0 + 8.0 + 42.0 + 8.0). is there.

  Next, when cutting out in three sections from the outer side of the first lattice part including the belt-like part, the width W33 is 147.5 mm (= W2 + W21 + W2 + W22 + W2 + W23 + W2 = 8.0 + 38.0 + 8.0 + 42.0 + 8.0 + 35.5 + 8) .0).

  Next, when cutting out in four sections from the outer side of the first lattice part including the belt-shaped part, the width W34 is 204.0 mm (= W2 + W21 + W2 + W22 + W2 + W23 + W2 + W7 + W2 + W24 + W2 = 8.0 + 38.0 + 8.0 + 42.0 + 8.0 + 35.5 + 8) 0.0 + 5.0 + 8.0 + 35.5 + 8.0).

  Here, referring to FIG. 13, a configuration in which the width of each section is made equal is as follows. In the following description, it is assumed that a width W109 = 300.0 mm (= W9) from the outer side end of the first grid part 131 to the outer side end of the second grid part 132 is used. Further, the width W102 of the belt-shaped portion is set to 8.0 mm, and the width between the first grating portion 131 and the second grating portion 132 is set to W107 = 5.0 mm. If it does so, it will become width W120 = 38.5mm of each division.

  If the filter structure is used as a whole without being cut off at all, its width is approximately W109 = 300.0 mm.

  Next, when cutting out in two sections from the outer side of the first lattice part including the band-shaped part, the width W132 is 101.0 mm (= W102 + W120 + W102 + W120 + W102 = 8.0 + 38.5 + 8.0 + 38.5 + 8.0). is there.

  Next, when cutting out in three sections from the outer side of the first lattice part including the belt-like part, the width W133 is 147.5 mm (= W102 + W120 + W102 + W120 + W102 + W120 + W102 = 8.0 + 38.5 + 8.0 + 38.5 + 8.0 + 38.5 + 8) .0).

  Next, when cutting out in four sections from the outer side of the first lattice part including the belt-shaped part, the width W134 is 207.0 mm (= W102 + W120 + W102 + W120 + W102 + W120 + W102 + W107 + W102 + W120 + W102 = 8.0 + 38.5 + 8.0 + 38.5 + 8.0 + 38.5 + 8) 0.0 + 5.0 + 8.0 + 38.5 + 8.0).

  A comparison between the filter structure 1 according to the present embodiment and a configuration in which the width of each section is made equal is as follows.

  First, in the case of the whole and in the case of three sections, there is no difference in size between the filter structure 1 according to the present embodiment and the configuration in which the width of each section is equal.

  In the case of two sections, the width W32 of the filter structure 1 according to the present embodiment is 104.0 mm, whereas the width W132 of the configuration in which the width of each section is equal is 101.0 mm. The configuration in which the widths of the compartments are equal is closer to 10 cm.

  However, in the case of four sections, the width W34 of the filter structure 1 according to the present embodiment is 204.0 mm, while the width W134 of the configuration in which the width of each section is equal is 207.0 mm, The configuration in which the widths of the compartments are equal will be larger than the width of 20 cm.

  As described above, by cutting out two sections, three sections, and four sections, a size as close as possible to the commonly used 10 cm, 15 cm, and 20 cm can be obtained. In other words, it is possible to suppress a significant deviation from those often used.

  Therefore, the variation in the size difference with respect to the kind of size that is often used can be suppressed.

  Hereinafter, a preferable variation of the cutting pattern in the case of cutting by the number of sections will be described.

  6 is a diagram illustrating a cutting pattern when the filter structure is cut in two sections, and FIG. 7 is a diagram illustrating a cutting pattern when the filter structure is cut in three sections. FIG. 5 is a diagram illustrating a cutting pattern when the filter structure is cut into four sections.

First, referring to FIG. 6, examples of the cutting pattern when cutting in two sections include the following. That is,
(T21): a pattern of cutting out two sections from the outer corner of the first region R1;
(T22): a pattern in which the first region R1 is cut into two sections from the corner on the center side of the filter body 2;
(T23): a pattern in which two sections are cut from the outer corner of the second region R2;
(T24): a pattern of cutting out two sections from the corner on the center side of the filter body 2 in the second region R2;
(T25): A pattern of cutting out two sections from the outer corner of the third region R3;
(T26): a pattern of cutting out two sections from the corner on the center side of the filter body 2 in the third region R3;
(T27): a pattern of cutting out two sections from the outer corner of the fourth region R4; and
(T28): Eight patterns of two sections cut from the corner on the center side of the filter body 2 in the fourth region R4.

Next, referring to FIG. 7, examples of the cutting pattern in the case of cutting in three sections include the following. That is,
(T31): a pattern of cutting out three sections from the outer corner of the first region R1;
(T32): a pattern in which three sections are cut from the outer corner of the second region R2;
(T33): a pattern of cutting out three sections from the outer corner of the third region R3; and
(T34): Four patterns of three sections cut from the outer corner of the fourth region R4.

Next, referring to FIG. 8, examples of the cutting pattern in the case of cutting in four sections include the following. That is,
(T41): a pattern of cutting out four sections from the outer corner of the first region R1;
(T42): a pattern of cutting out four sections from the outer corner of the second region R2;
(T43): a pattern of cutting out four sections from the outer corner of the third region R3;
(T44): a pattern of cutting out four sections from the outer corner of the fourth region R4; and
(T45): Five patterns are cut out from the center of the filter main body 2 in two vertical and horizontal directions.

  As described above, the filter structure 1 can be adjusted to various object sizes.

  Then, the structure of the adhesion part 3 is further demonstrated.

  9 is an enlarged view of the P1 portion shown in FIG. 1, and FIG. 10 is an enlarged view of the P2 portion shown in FIG.

  First, referring to FIG. 1 in addition to FIG. 9, the adhesive portion 3 has a lattice of the first lattice portion 31 to the fourth lattice portion 34 at a substantially diagonal position of the filter body 2 in a square shape. A heart-shaped marker part 5 that is provided so as to overlap the intersections of the shapes and coated with a pressure-sensitive adhesive in a heart shape indicating the replacement time of the filter structure, and is provided around the heart-shaped marker part 5, And a contour portion (non-adhesive portion) 6 that is not applied. In each part of the first lattice part 31 to the fourth lattice part 34, two (one pair) heart-shaped marker parts are included. In addition, the pair of heart-shaped marker portions in each portion are arranged in a positional relationship such that the convex portions face each other. Further, referring to FIG. 9, the convex portion 5 a of the heart-shaped marker portion (marker portion) 5 is arranged so as to protrude from the lattice-shaped intersection portion 32 a of the second lattice portion 32 toward the center of the lattice shape. Is done.

  The contour portion 6 is provided such that the lattice shape and the heart-shaped marker portion 5 are separated from each other by D1 = 4 mm or more.

  Next, referring to FIG. 1 in addition to FIG. 10, the adhesive portion 3 is provided so as to overlap with the lattice shapes of the first lattice portion 31 to the fourth lattice portion 34, A character string-shaped marker portion (marker portion) 7 coated with a pressure-sensitive adhesive in a character string indicating the replacement time of the filter structure, and a contour portion provided around the character-shaped marker portion 7 and not coated with a pressure-sensitive adhesive (Non-adhesive part) 8.

  The character string indicator 7 is composed of a character string consisting of six characters “replace”.

  The contour portion 8 is provided so that the lattice shape and the character string-shaped marker portion 7 are spaced apart by D2 = 4 mm or more.

  The effect of setting the dimensional relationship between the contour portions 6 and 8 will be described later.

  FIG. 11 is a rear view showing the appearance of the filter structure after use. Referring to the figure, when the filter structure is attached to the object and continued to be used, the part where the adhesive is not applied (hereinafter referred to as “non-adhesive part”) is breathable. Dirt adheres to the non-adhesive part, and the part turns black. On the other hand, since it becomes difficult for dirt to adhere to the part where the adhesive is applied (hereinafter referred to as “adhesive part”) in the filter body, the part floats white. In particular, the above-mentioned heart-shaped marker portion 6 has a white heart shape, and the character string-shaped marker portion 7 has a character string “Ne” instead. This indicates to the user that it is time to replace the filter structure. The reason why the dirt is less likely to adhere to the adhesive part of the filter body is assumed as follows. When air (including dust stains) passes through the filter body 2 of the filter structure 1 attached to the ventilation port, the air does not flow through the adhesive part, so the air should avoid the adhesive part. To flow. As a result, it is assumed that dirt is less likely to adhere to the adhesive portion of the filter body.

  Here, the relationship between the width of the non-adhesive part and the ease of adhesion of dirt will be described as follows.

  FIG. 12 is a schematic diagram for explaining the relationship between the width of the non-adhesive part and the ease of adhesion of dirt, (a) shows the case where the width of the non-adhesive part is set to 4 mm or more, and (b) The case where the width | variety of a non-adhesion part is set to less than 4 mm is shown.

  In the following description, the minimum width of the distance between the adhesive portion 41a (corresponding to the lattice portion) and another adhesive portion 41b provided via the non-adhesive portion 42 (corresponding to the contour portion) is defined as the contour portion. Width D3 (corresponding to widths D1 and D2).

  With reference to (a) of the figure, as described above, the adhesive portions 41a and 41b to which the adhesive is applied tend not to be contaminated, but the width D3 of the non-adhesive portion 42 is set to 4 mm or more. In this case, since the adhesive portions 41a and 41b can be sufficiently separated from each other, dust dirt 50 easily adheres to the non-adhesive portion 42 between them, that is, the dust dirt capturing function of the filter main body in the non-adhesive portion 42 is provided. It becomes easy to be demonstrated. Thereby, by continuing use, dust stains are accumulated on the non-adhesive portion 42, and the adherend portion 42 such as the marker portion as described above appears to turn black.

  On the other hand, referring to (b) of the figure, when the width D100 of the contour portion is set to less than 4 mm, the dust dirt trapping function of the filter main body at the contour portion is hardly exhibited due to the influence of the adhesive. , It becomes difficult for the dust dirt of the part to adhere. Even if the use is continued, there is a possibility that the portion does not easily change to black or hardly changes to black. In such a configuration, there is a possibility that the above-described marker portion is difficult to lift.

  In the above-described embodiment, it has been described that each part of the filter structure is set to a specific size. However, the present invention is not limited to this.

  Further, the first direction width of the nine sections is set to increase in the order of the center side W13, the outer side W11, and the middle W12, and the second direction width of the nine sections is set to the center side W23, the outer side. Although it set so that it may become large in order of the side W21 and the middle W22, it is not restricted to this.

  It is sufficient that at least one of the first direction width and the second direction width of the nine sections is set to the above-described dimensions.

  For example, the second direction width of the nine sections is set to 38.0 mm, 42.0 mm, and 35.5 mm as described above for the outer side W21, the middle W22, and the center side W23 of the filter body 2, respectively. On the other hand, the first direction widths of the nine sections may be set to 35.5 mm, 42.0 mm, and 38.0 mm for the outer side W11, the middle W12, and the center side W13 of the filter body 2, respectively. Good. The reverse is also true.

  Furthermore, the width in each direction can be set so that the center is the largest or smallest, and the center side and the outside are different.

  Furthermore, although said embodiment demonstrated that a filter main body was comprised with a nonwoven fabric, it is not restricted to this. A filter main body can be comprised with the member which has a function which filters the gas which passes.

  Furthermore, in the above embodiment, the shape of the filter body is a square shape, but is not limited thereto, and may be a right-angled square shape.

  Further, although not specifically described in the above embodiment, the lattice portion does not have to be a completely continuous belt-like shape, but is a broken line shape, or as described above, the marker portions overlap with each other through the contour portion. It may be formed.

  Furthermore, in the above-described embodiment, a specific pattern has been described as a pattern to be cut in two sections, three sections, and four sections. However, the present invention is not limited to this. It is possible to cut out with an arbitrary pattern.

  Furthermore, in the above-described embodiment, the sign portion has a specific shape, that is, a heart-shaped mark portion having a heart shape or a character string-shaped mark portion formed of a character string, but is not limited thereto. . The labeling section may be any one in which a pressure-sensitive adhesive is applied in a label indicating the replacement time of the filter structure.

  Furthermore, in the above embodiment, it has been described that the width of the non-adhesive portion (contour portion) is set to 4 mm or more. However, in order to improve the dust dirt capturing function, the width may be set to 5 mm or more. More preferred.

  Furthermore, in the above-described embodiment, the configuration including the lattice portion has been described, but it can be said that this configuration is not essential from another aspect.

  For this reason, the filter structure can also be expressed as follows. That is, the filter structure is a filter structure for filtering a gas that passes by attaching a part or all of the filter structure to an object, and a filter body formed in a sheet shape, An adhesive part formed by applying an adhesive on a part of one surface of the filter main body, an indicator part applied with an adhesive in a label indicating the replacement time of the filter structure, the adhesive part, and the indicator part. It is provided with a width of 4 mm or more between them and a non-adhesive part to which no adhesive is applied.

DESCRIPTION OF SYMBOLS 1 ... Filter structure 2 ... Filter main body 3 ... Adhesive part 5 ... Heart-shaped label | marker part 7 ... Character string-shaped label | marker part 6, 8 ... Contour part 31 ... 1st grating | lattice part 32 ... 2nd grating | lattice part 33 ... 3rd Lattice portion 34 ... Fourth lattice portion 41 ... Adhesive portion 42 ... Non-adhesive portion R1 ... First region R2 ... Second region R3 ... Third region R4 ... Fourth region The same reference numerals in each figure are the same or equivalent Indicates the part.

Claims (4)

A filter structure for filtering a passing gas by attaching a part or all of a cut part to an object,
A filter main body made of a sheet having a rectangular shape extending in a first direction and a second direction orthogonal to the first direction in plan view;
On one side of the filter body, an adhesive part formed by applying an adhesive,
The adhesive part is formed in a band with a certain width,
The right rectangular shape is arranged in a first region of four regions obtained by dividing the right rectangular shape into four equal parts by a first line passing through the center in the first direction and a second line passing through the center in the second direction, Nine sections are formed by applying a 3 × 3 grid pattern extending in the first direction and the second direction from the outer periphery of the first region to a position less than the predetermined width as an outer edge. At least one of the first direction width and the second direction width is set to be larger in the order of the center side, the outer side, and the middle, respectively,
A second lattice portion formed symmetrically with the first lattice portion with respect to the second line;
A filter structure including a third lattice part and a fourth lattice part formed symmetrically with the first lattice part and the second lattice part, respectively, with respect to the first line. The right rectangular shape is a square,
The width from the outer side end of the first grid part to the outer side end of the second grid part is 300.0 mm,
The constant width is 8.0 mm,
The width between the first grating part and the second grating part is 5.0 mm,
The first direction width of the section of the first lattice portion is set to 35.5 mm, 38.0 mm, and 42.0 mm for the center side, the outer side, and the middle, respectively. Filter structure. Furthermore, the adhesive part is
A label portion provided so as to overlap at least a part of the lattice-shaped belt-like shape, and a marker portion coated with an adhesive in a marker shape indicating the replacement time of the filter structure;
The filter structure according to claim 1, further comprising a contour portion provided around the marker portion and not coated with an adhesive. A filter structure for filtering a passing gas by attaching a part or all of a cut part to an object,
A filter body formed in a sheet shape;
An adhesive part formed by applying an adhesive on a part of one surface of the filter body;
A marker part in which a pressure-sensitive adhesive is applied to indicate the replacement time of the filter structure;
A filter structure provided with a non-adhesive part provided with a width of 4 mm or more between the adhesive part and the marker part and not coated with an adhesive.

Images