JP6211787B2 - Filter fixture - Google Patents

Description

  The present invention relates to a filter attachment, and more particularly to a filter attachment for attachment to a natural air supply / exhaust device having a flat surface and a cylindrical vent formed at the center of the flat surface and reinforced inside.

  There is provided a natural air supply / exhaust device which is attached to a wall surface or the like in a house and exchanges indoor air.

  FIG. 9 is a front view schematically showing the external shape of a conventional natural air supply / exhaust device.

  Referring to the figure, the natural air supply / exhaust device 61 is mainly composed of a device main body 65 and an opening / closing lid (not shown). The apparatus main body 65 includes a flat surface 71 having a square shape, an edge portion 74 that surrounds an outer peripheral end portion thereof, and a cylindrical vent (not shown) formed at the center of the flat surface 71. At the center of the flat surface 71, a filter 81 having a size for closing the vent is detachably attached. The opening / closing lid and the vent will be described later.

  FIG. 10 is a front view schematically showing the appearance of each of the apparatus main body and the filter after the filter is removed in the natural air supply / exhaust device shown in FIG. 9, and FIG. 11 is shown in FIG. It is the perspective view which showed roughly the external appearance of the apparatus main body.

  With reference to these drawings, the vent hole 75 is formed in a cylindrical shape, and the inside thereof is reinforced by a reinforcing portion 77. Further, at the center of the reinforcing portion 77, a slide portion 78 is provided which engages with a projection provided at the center of an opening / closing lid (not shown) and allows the opening / closing lid to move in the ventilation direction of the vent hole 75.

  A stopper 79 formed by a part of the inner wall 76 projecting into the vent hole 75 on the inner wall 76 of the vent hole 75 is located on the indoor side of the reinforcing portion 77 through the vent hole 75. It is arranged at four places. Further, between the stoppers 79, there are four mounting portions 72 formed by a part of the flat surface 71 being recessed toward the vent hole 75 side. Further, a ring-shaped cushioning material 73 is attached on the outer peripheral end portion of the flat surface 71.

  On the other hand, the filter 81 includes a nonwoven fabric 82 and a holding portion 83. The holding portion 83 includes a ring-shaped outer frame portion 86, an opening frame portion 87 disposed inside the outer frame portion 86, and a connecting portion 88 that extends radially from the opening frame portion 87 toward the outer frame portion 86. The outer frame portion 86 corresponding to the connecting portion 88 is provided with a protruding portion 89 formed in a protruding state, and the nonwoven fabric 82 is opened so that the inner side of the opening frame portion 87 opens. , The opening frame portion 87 and the connecting portion 88 are attached to one surface side. Thus, the center of the filter 81 is configured such that the slide portion 78 penetrates when the filter 81 is attached to the apparatus main body 65.

  12 is an enlarged sectional view taken along line XII-XII shown in FIG. 9, and FIG. 13 is an enlarged sectional view taken along line XIII-XIII shown in FIG.

  With reference to these drawings, the filter 81 is attached in a state where the outer frame portion 86 abuts against the stopper 79 and the connecting portion 88 abuts against the reinforcing portion 77. At this time, the protruding portion 89 is disposed on the attachment portion 72, and the surface of the protruding portion 89 and the flat surface 71 are on the same plane.

  14 is a perspective view schematically showing the external shape of the natural air supply / exhaust device when the natural air supply / exhaust device shown in FIG. 9 is attached to a wall surface, and FIG. 15 is an XV- It is sectional drawing of a XV line.

  With reference to these drawings, the natural air supply / exhaust device 61 is installed in a state where the device main body 65 is attached to the wall surface 63 on the indoor side, and the protruding portion 67 of the opening / closing lid 66 is engaged with the slide portion 78. At this time, the vent hole 75 is in a state of being fitted inside the pipe 64 that penetrates the wall surface 63.

  When the natural air supply / exhaust device 61 is not used, the open / close lid 66 is in contact with the flat surface 71 through the cushioning material 73 as shown in FIG. 14 and FIG.

  On the other hand, when the natural air supply / exhaust device 61 is used, as shown in FIG. 14 and FIG. 15 (2), the opening / closing lid 66 is held in a state of being moved in the ventilation direction of the ventilation hole 75, thereby Air can enter and exit through 75. When the outside air flows into the room, dust such as pollen contained in the outside air is removed by the nonwoven fabric 82 of the filter 81, so that fresh air can be taken into the room.

  By the way, when the use of the natural air supply / exhaust device 61 (see FIG. 15) is continued, the non-woven fabric 82 of the filter 81 may be contaminated by dust. In such a case, only the non-woven fabric 82 of the filter 81 cannot be replaced, and the entire filter 81 must be replaced with a new one. However, in the conventional natural air supply / exhaust device 61, the filter 81 is not a versatile filter because the shape of the holding portion 83 must be a special filter adapted to the shape of the mounting portion 72. In general, the filter 81 provided with such a holding portion 83 is expensive, but it is not economical considering that the entire filter 81 must be replaced every time the nonwoven fabric 82 becomes dirty.

  The present invention has been made to solve the above-described problems, and an object of the present invention is to provide a filter fixture that does not require a special filter and can be easily attached to any natural air supply / exhaust device. To do.

In order to achieve the above-mentioned object, the invention according to claim 1 has a flat surface and a cylindrical ventilation hole formed at the center of the flat surface and reinforced in its interior. A filter mounting tool for mounting on a natural air supply / exhaust device, which is a sheet-like filter that is large enough to close a vent and a flat surface that can be mounted at positions facing each other through the vent. A main body and an elastic body that is detachably locked so as to be bridged over each of the main bodies, and that can press the indoor side surface of the filter disposed in the vent , the elastic body has a ring shape, The flat surface has a square shape, and each of the main bodies is formed in a hook shape so as to be integrally connected to the flat plate portion fixed to the flat surface and the flat plate portion, and to lock the elastic body at the tip. Along with the inside of the vent The natural air supply / exhaust device is provided with an opening / closing lid that is movable in the ventilation direction of the ventilation port, and each of the main bodies is opened and closed in a closed state. It is configured not to contact the lid, and is attached to a position outside the filter .

If comprised in this way, a filter will be hold | maintained by the reinforcement part and elastic body of a vent hole. In addition, the pattern holding the filter spreads. Further, the locking portion does not protrude from the flat plate portion to the indoor side. Furthermore, it does not obstruct the opening and closing of the opening / closing lid.

According to a second aspect of the invention, in the structure of the invention of claim 1 Symbol placement, vents are formed in a cylindrical shape, each of the body is to be attached to the four corners of opposing flat surfaces.

  If comprised in this way, the attachment place of a main body will become wide.

As described above, according to the first aspect of the present invention, the filter is held by the reinforcing portion of the vent hole and the elastic body, so that the filter can be easily detached and no special filter is required. Further, since the pattern for holding the filter is widened, the pattern can be selected according to the use situation and the like, and the usability is improved. Further, since the locking portion does not protrude from the flat plate portion to the indoor side, the influence of the attachment of the main body is reduced. Furthermore, since the opening / closing of the opening / closing lid is not obstructed, the usability is not changed.

The invention of claim 2, wherein, in addition to the effect of the invention of claim 1 Symbol placement, since the mounting location of the body is widened, it is possible to press the filter can be easily attached to the body by stable elastic body .

It is the front view which showed roughly the external appearance shape of the natural air supply / exhaust device after attaching the filter attachment tool by 1st Embodiment of this invention. FIG. 2 is an enlarged perspective view of a “X” portion shown in FIG. 1. It is an expanded sectional view of the III-III line shown in FIG. It is an expanded sectional view of the IV-IV line shown in FIG. It is a part of schematic process drawing for demonstrating the attachment process of the filter fixture by 1st Embodiment of this invention. FIG. 6B is another part of the schematic process diagram for explaining the process of attaching the filter fixture following the process chart shown in FIG. 5. FIG. 7 is still another part of the schematic process diagram for explaining the process of attaching the filter fixture following the process chart shown in FIG. 6. It is a figure which shows the 1st modification and 2nd modification of a filter fixture by 1st Embodiment of this invention. It is the front view which showed roughly the external appearance shape of the conventional natural air supply / exhaust apparatus. FIG. 10 is a front view schematically showing the appearance of each of the apparatus main body and the filter after the filter is removed in the natural air supply / exhaust device shown in FIG. 9. It is the perspective view which showed roughly the external appearance shape of the apparatus main body shown in FIG. It is an expanded sectional view of the XII-XII line shown in FIG. It is an expanded sectional view of the XIII-XIII line shown in FIG. It is the perspective view which showed roughly the external appearance shape of the natural air supply / exhaust device when the natural air supply / exhaust device shown in FIG. 9 was attached to the wall surface. It is sectional drawing of the XV-XV line shown in FIG.

  FIG. 1 is a front view schematically showing the external shape of a natural air supply / exhaust device after the filter fixture according to the first embodiment of the present invention is attached, and FIG. 2 is an “X” shown in FIG. It is an enlarged perspective view of a portion. Since the structure of the natural air supply / exhaust device is the same as the conventional one, the description here will not be repeated.

  With reference to these drawings, the filter fixture 8 includes a pair of main bodies 11a and 11c, another pair of main bodies 11b and 11d, a filter 21, a first rubber band 23, and a second rubber band 24. .

  The main bodies 11a to 11d are attached to the positions of the four corners facing each other through a cylindrical vent 75 (see FIG. 10) formed in the center of a square flat surface 71 provided in the apparatus main body 65.

  On the other hand, the filter 21 has a sheet shape large enough to close the vent hole 75 and is disposed in the vent hole 75. Here, the filter 21 is assumed to be composed of a sheet of non-woven fabric, but may be a sheet other than the non-woven fabric as long as dust contained in the outside air can be appropriately removed.

  As shown in FIG. 2, the main body 11a includes a flat plate portion 13a fixed to the flat surface 71 via the double-sided adhesive tape 16, and a locking portion 14a integrally connected to the flat plate portion 13a. Yes. And the front-end | tip of the latching | locking part 14a is formed in the hook shape so that the 1st rubber band 23 can be latched, and it inclines from the plane of the flat plate part 13a to the air vent 75 side so that it may face in the air vent 75. Yes. In that case, the latching | locking part 14a is set so that it may not protrude indoors rather than the flat plate part 13a so that the influence of attachment of the main body 11a may be reduced. Since the other main bodies 11b to 11d have the same configuration as the main body 11a, their description is omitted. Each of the main bodies 11a to 11d is configured not to contact the open / close lid 66 in a closed state so as not to obstruct the opening / closing of the open / close lid 66 (see FIGS. 14 and 15). Therefore, the usability of the natural air supply / exhaust device 61 does not change before and after the filter attachment 8 is attached.

  The first rubber band 23 is detachably locked to the main body 11a and the main body 11c, and the second rubber band 24 is detachably locked to the main body 11b and the main body 11d.

  3 is an enlarged sectional view taken along line III-III shown in FIG. 1, and FIG. 4 is an enlarged sectional view taken along line IV-IV shown in FIG.

  Referring to these drawings, in a state where the filter 21 is attached to the apparatus main body 65, as shown in FIG. 3, the first rubber band 23 and the second rubber band 24 are disposed on the surface of the filter 21 on the indoor side. ing. The surface of the outer edge of the filter 21 is also in contact with the stopper 79. On the other hand, the surface of the filter 21 on the side opposite to the indoor side is in contact with the reinforcing portion 77 as shown in FIG. Thus, both sides of the filter 21 are held by the reinforcing portion 77 and the first rubber band 23 and the second rubber band 24.

  5 to 7 are part of a schematic process diagram for explaining the process of attaching the filter fixture shown in FIG.

  Referring to these drawings, first, as shown in FIG. 5, after removing an unillustrated opening / closing lid 66 (see FIGS. 14 and 15) from the apparatus main body 65, the main body 11a is placed at a predetermined position on the flat surface 71. Install ~ 11d. Here, since the flat surface 71 has a square shape and the vent hole 75 is formed in a cylindrical shape, the attachment locations of the main bodies 11a to 11d are widely provided, so that the main bodies 11a to 11d can be easily attached. Can do.

  Next, as shown in FIG. 6, the filter 21 is installed at a predetermined position so that the slide portion 78 protrudes from the surface of the filter 21. At that time, if a filter having a notch (not shown) corresponding to the slide portion 78 in the center is used as the filter 21, the filter 21 can be easily installed.

  Then, as shown in FIG. 7, the first rubber band 23 is locked to the locking portions 14a and 14c of the main body 11a and the main body 11c, and the locking portions 14b and 14d of the main body 11b and the main body 11d are locked. The second rubber band 24 is locked.

  Finally, if the opening / closing lid 66 is attached to the apparatus main body 65 via the slide part 78, it can be used as the natural air supply / exhaust apparatus 61. When the filter 21 becomes dirty, the filter 21 can be easily removed and replaced with a new one simply by releasing the locking of the first rubber band 23 and the second rubber band 24. Moreover, since the filter 21 is comprised from the simple sheet-like nonwoven fabric, a special filter is not required.

  FIG. 8 is a view showing a first modification and a second modification of the filter fixture according to the first embodiment of the present invention.

  First, referring to (1) of FIG. 8, in the first modification, the first rubber band 23 is placed on the engaging portions 14a, 14b, 14c of the main bodies 11a, 11b, 11c so as to straddle the slide portion 78. It is locked. On the other hand, the second rubber band 24 is locked to the locking portions 14a, 14c, and 14d of the main bodies 11a, 11c, and 11d so as to straddle the slide portion 78. Thus, when the 1st rubber band 23 and the 2nd rubber band 24 are latched, the filter 21 can be stably hold | maintained in the outer position compared with the usage example of FIG.

  Next, referring to FIG. 8 (2), in the second modified example, in addition to the first modified example shown in FIG. 8 (1), the third rubber band 25 and the fourth rubber band 26 are further used. doing. Further, from the state of FIG. 1 (1), the third rubber band 25 is locked to the locking portions 14b, 14c, 14d of the main bodies 11b, 11c, 11d so as to straddle the slide portion 78, and the fourth rubber band 26 Is locked to the respective locking portions 14a, 14b, 14d of the main bodies 11a, 11b, 11d so as to straddle the slide portion 78. By increasing the number of rubber bands in this way, the surface area of the filter 21 pressed by the rubber band increases, so that the filter 21 can be pressed in a more stable state. Moreover, since the pattern which holds a filter spreads by using the rubber band which is a ring-shaped elastic body, a pattern can be selected according to a use condition etc., and usability improves.

  In the above embodiment, the rubber band is used as the elastic body, but the same effect can be obtained by using an elastic body made of another material instead.

  Further, in the above embodiment, although the elastic body has a ring-shaped, elastic body is long as a shape that can be locked both ends thereof to the body, how strip including It may be a simple shape. In that case, you may form the opening corresponding to a slide part in the center of an elastic body according to a shape.

  Further, in the above-described embodiment, the filter fixture includes four main bodies and each is attached to the four opposite corners of the flat surface, but the main body can be attached to the opposite positions via the vents. Therefore, it is only necessary to have at least a pair of main bodies.

  Furthermore, in the above-described embodiment, the flat surface has a square shape and the vent hole is formed in a cylindrical shape, but these can be similarly applied to other shapes.

  Furthermore, in the above embodiment, the natural air supply / exhaust device is provided with the open / close lid, but the present invention can be similarly applied to a natural air supply / exhaust device that is not provided with the open / close lid.

  Furthermore, in the above embodiment, two or four rubber bands are used, but the number of rubber bands, that is, elastic bodies may be other than that.

  Furthermore, in the above-described embodiment, the device body of the natural air supply / exhaust device includes the edge portion and the cushioning material attached on the flat surface. It goes without saying that can be applied as well.

  Furthermore, in the above embodiment, the main body is configured in a specific shape, but may be any shape as long as the elastic body can be locked and attached to a flat surface.

DESCRIPTION OF SYMBOLS 8 ... Filter attachment 11a-11d ... Main body 13a ... Flat plate part 14a-14d ... Locking part 21 ... Filter 23 ... 1st rubber band 24 ... 2nd rubber band 25 ... 3rd rubber band 26 ... 4th rubber band 61 ... Natural supply / exhaust device 63 ... Wall surface 66 ... Opening and closing lid In addition, the same code | symbol in each figure shows the same or equivalent part.

Claims (2)

A filter attachment for attaching to a natural air supply / exhaust device which is attached to a wall surface on the indoor side and has a flat surface and a cylindrical vent formed at the center of the flat surface and reinforced inside,
A sheet-like filter sized to block the vent;
At least a pair of main bodies that are flat surfaces and can be attached to positions facing each other through the vent;
An elastic body that is detachably locked so as to be bridged over each of the main bodies, and that can hold the indoor side surface of the filter disposed in the vent hole ,
The elastic body has a ring shape,
The flat surface has a square shape;
Each of the main bodies
A flat plate portion fixed to the flat surface;
It is integrally connected to the flat plate portion, and its tip is formed in a hook shape so as to be able to lock the elastic body, and is inclined from the flat surface of the flat plate portion to the vent hole side so as to face the vent hole. Including a locking portion,
The natural air supply / exhaust device is provided with an openable / closable lid movable in the ventilation direction of the vent,
Each of the main bodies is configured so as not to contact the open / close lid in the closed state, and is attached to a position outside the filter. Before SL vent is formed in a cylindrical shape,
Wherein each of the body is attached to the four corners facing the flat surface, according to claim 1 Symbol placement of the filter attachment.

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