JP6553424B2 - Air vent filter and natural air supply / exhaust device - Google Patents

Description

  The present invention relates to a vent filter and a natural supply / exhaust device, and more particularly to a vent filter attached to a vent in a natural supply / exhaust body attached to a wall surface on the indoor side and having a vent.

  FIG. 11 is a perspective view schematically showing an external shape of a conventional natural air supply / exhaust device attached to a wall surface, and FIG. 12 is an end view of the XII-XII line shown in FIG. Further, (1) in FIGS. 11 and 12 is the one with the open / close lid closed, and (2) is the one with the open / close lid open.

  With reference to these drawings, in a room such as a house, a natural air supply / exhaust device 61 is attached to a wall surface 63 and the air in the room is replaced.

  The natural air supply and exhaust system 61 is composed of a natural air supply and exhaust main body 65 and a vent filter 81. The natural air supply / exhaust body 65 includes a flat surface 71 having a rectangular shape, a vent hole 75 formed at the center of the flat surface 71, and a frame body that is connected to the entire outer periphery of the flat surface 71 and is arranged along the wall surface. 74 and an open / close lid 66 that is opposed to the flat surface 71 and is attached so as to close the frame 74. The open / close lid 66 has a square flat plate shape in which the corner portion 68 is rounded. A shaft body 78 is formed at the center of the vent hole 75 so that the operating rod 67 formed on the opening / closing lid 66 can slide freely.

  In the state of engagement between the shaft 78 of the naturally supplied and exhausted main body 65 and the operating rod 67 of the open / close lid 66, the engaging position of the shaft 78 with the operating rod 67 can be changed in multiple stages. Thus, the moving distance of the opening / closing lid 66 in the room direction can be adjusted and maintained. Further, the open / close lid 66 can be detached from the natural air supply / exhaust body 65 by releasing the engagement state between the shaft body 78 and the operating rod 67.

  A ventilation hole filter 81 having a size for closing the ventilation hole 75 is detachably attached to the center of the flat surface 71. The vent filter 81 is composed of a non-woven fabric 82 and a holding portion 83 for fixing the shape of the non-woven fabric 82.

  When the natural air supply and exhaust system 61 is not in use, as shown in (1) in FIGS. 11 and 12, the open / close lid 66 is in a closed state in contact with the flat surface 71 via the buffer material 73, Outside air does not enter or leave the room.

  On the other hand, when the natural air supply and exhaust system 61 is used, as shown in (2) in FIGS. 11 and 12, the engagement state between the actuating rod 67 of the open / close lid 66 and the shaft 78 of the natural air supply and exhaust main body 65 is By adjusting and holding the open / close lid 66 in the open state, the outside air can enter and exit through the vent 75 as shown by the arrow in FIG. . 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 vent filter 81, so that fresh air can be taken into the room.

  If the use of the conventional natural air supply / exhaust device 61 as described above is continued, there is a problem that the nonwoven fabric 82 of the filter 81 for the air vent is soiled by dust and the filter performance is deteriorated. Replacing the vent filter 81 solves this problem, but in order to replace the vent filter 81, it is necessary to first remove the open / close lid 66.

  FIG. 13 is a front view schematically showing the appearance of a conventional natural air supply / exhaust device with the opening / closing lid removed.

  Referring to the drawing, a vent filter 81 is detachably attached to the center of a flat surface 71 covered by an opening / closing lid (not shown). Therefore, in order to replace the vent filter 81, it is first necessary to remove the open / close lid. And in order to remove an opening-and-closing lid, it is necessary to release an engagement state with operation rod 67 of opening-and-closing lid 66 and shaft 78 of natural feeding exhausting body 65 as shown in Drawing 12 mentioned above. It is not easy for the person.

  Furthermore, even after removing the open / close lid, the following problems exist when replacing the vent filter 81.

  FIG. 14 is a front view schematically showing the appearance of each of the naturally supplied / exhaust body and the vent filter in a state where the vent filter is removed in the conventional naturally supplied / exhaust device shown in FIG. FIG. 15 is a perspective view schematically showing the external shape of the natural supply and exhaust main body shown in FIG.

  Referring to these figures, vent 75 is formed in a cylindrical shape, and the inside thereof is reinforced by reinforcing portion 77. A shaft body 78 is provided at the center of the reinforcing portion 77.

  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.

  On the other hand, the filter 81 for air vents is comprised from the nonwoven fabric 82 and the holding | maintenance part 83 as mentioned above. An opening frame portion 87 is formed in the center of the holding portion 83, and the shaft body 78 is configured to pass through the opening frame portion 87 when the vent filter 81 is attached to the natural supply / exhaust body 65. The non-woven fabric 82 is attached to one side of the holding portion 83 such that the inner side of the opening frame portion 87 is open. Therefore, when replacing the vent filter 81, it is not possible to replace only the nonwoven fabric 82, and it is necessary to replace the entire vent filter 81 with a new one.

  Thus, in the conventional natural air supply / exhaust device 61, the vent filter 81 is a filter dedicated to the natural air supply / exhaust device in which the outer frame shape of the holding portion 83 is adapted to the shape of the mounting portion 72. Because it must be, it is not compatible with the model. This problem also occurs in a natural air supply / exhaust device having an open / close lid that does not have an operating rod or the like.

  The present invention was made to solve the problems as described above, and it is an object of the present invention to provide a filter for a vent, which is highly compatible with a natural air supply and exhaust system and can be easily attached and removed. And

In order to achieve the above object, the invention according to claim 1 is attached to a wall surface on the indoor side, and a flat surface and a vent formed in the center of the flat surface overlapping the flat lid and the lid. and a frame-shaped frame body fixed to the wall extends from the entire periphery edge face, and the natural supply and exhaust body fit these as closing cover faces the flat surface, attached to the natural supply and exhaust body The vent filter is provided with a flat plate-like body made of an elastic body, and the opening / closing lid closes the inside of the frame body in the closed state. It is attached and configured to be movable in the indoor direction from the frame, and in the open state, it is separated from the frame by a fixed distance in the indoor direction and a gap is provided. Makes the operating rod protruding from the center slidable Body is formed so as to be secured by bridging the inner wall of the vent in the reinforcing portion, the main body includes an insertion portion which actuating rod can inserted, and a slit continuous from the insertion portion to the outer edge of the body, the body when closing lid is actuated杆又in and insertion unit in an open state in which the shaft body is in the inserted state, it has a thickness and size to close the gap all around, cuts, those having a corrugated shape in the outer surface of the body is there.

With such a configuration, attachment and removal of the vent filter become possible. In addition, when the open / close lid is in the open state, attachment and removal of the air vent filter become possible. Furthermore, the attachment position is determined by the insertion portion. Furthermore, it is possible to suppress the reduction of the filter effect in the state in which the cut is open.
The invention described in claim 2 is attached to the wall surface on the indoor side, and extends from the square flat plate-shaped opening / closing lid, the flat surface overlapping the opening / closing lid, the vent formed in the center of the flat surface, and the entire outer edge of the flat surface. Naturally provided with a natural air supply / exhaust body that has a frame-like frame body fixed to the wall surface, and the open / close lid is attached to face the flat surface, and a vent filter that is attached to the natural air supply / exhaust body. The vent filter includes a flat plate body made of an elastic body, and the opening / closing lid is attached so as to close the inside of the frame body in the closed state, and extends inward from the frame body. It is configured to be movable, and in the open state, it is separated from the frame by a certain distance in the indoor direction to provide a gap, and the main body has a thickness and a size that close the entire gap in the open state of the open / close lid The outer edge of the body is flat It is larger than the projection position of the outer edge of the lid against.
With such a configuration, attachment and removal of the vent filter become possible. Further, it is possible to absorb an error in the mounting position.

According to a third aspect of the invention, in the structure of the invention of claim 2, wherein the shaft body to the center of the vents to slidably actuating rod projecting from the center of the surface of the vent side of the cover vent The body is formed so as to be fixed by bridging the inner wall of the mouth by the reinforcing portion , the body includes the insertion portion through which the operating rod can be inserted, and the cut continuing from the insertion portion to the outer edge of the body; Is in the open state and when the operating rod or the shaft body is in the insertion state in the insertion portion, it has a thickness and a size that close the entire circumference of the gap.

  If comprised in this way, when the opening-and-closing lid | cover is in an open state, attachment and removal of the filter for ventilation holes will be attained. The mounting position is determined by the insertion portion.

Invention of claim 4, wherein, in the configuration of the invention according to claim 1, lid has a square plate shape, the outer edge of the main body at the time of installation, than the projection position of the outer edge of the lid with respect to the flat surface the size potatoes in the range.

  If comprised in this way, the error of an attachment position can be absorbed.

According to a fifth aspect of the present invention, in the configuration of the first aspect of the present invention, a surplus portion between the outer edge of the main body and the projection position of the opening / closing lid, the radial direction from the insertion portion The length is set so as to increase toward the portion corresponding to the corner of the open / close lid.

  If comprised in this way, when a main body inclines around an operating rod or a shaft, a crevice can be closed up efficiently. In addition, the surplus corresponding to the corner portion of the open / close lid is a guide at the time of installation.

The invention according to claim 6 is the structure of the invention according to any one of claims 1 to 5, wherein the main body is formed with a protruding portion that protrudes in a direction opposite to the direction in which the cut is formed with respect to the insertion portion. is there.

  According to this structure, the projection can be held upward when installed.

According to a seventh aspect of the present invention, in the configuration of the invention according to any one of the first to fourth aspects, the body further includes a supplementary body that is detachably attached to the surface of the main body on the opening / closing lid side. And a rotation preventing means engaged with the opening / closing lid so as to prevent rotation of the main body around the operating rod or shaft.

  If comprised in this way, there is no possibility of rotation of a main body at the time of installation.

The invention according to claim 8 is a natural air supply / exhaust device attached to a wall surface on the indoor side, comprising: a flat surface overlapping a flat- plate-shaped opening / closing lid and the opening / closing lid ; a vent formed in the center of the flat surface; A frame-shaped frame body that extends from the entire outer edge and is fixed to the wall surface, and the opening / closing lid is mounted so as to face the flat surface and close the frame-shaped interior of the frame body in the closed state. It is configured to be movable in the direction, and in the open state, a gap is provided away from the frame by a fixed distance in the indoor direction, and at the center of the vent, the operating rod protruding from the center of the surface of the open / close lid side and natural supply and exhaust body which is formed so that the axis body for slidable is fixed bridging the inner wall of the vent in the reinforcing portion, when the lid is open, is detachably inserted into the inter-gap , From an elastic body that engages with the operating rod or shaft and closes the entire circumference of the gap That is one that includes a filter for air vents.

According to this structure, the vent filter can be attached and removed when the open / close lid is in the open state. Also, the mounting position is determined by the operating rod or shaft.
The invention according to claim 9 is a filter for a vent, which is included in the natural gas supply and exhaust system according to any one of claims 1 to 8.
With such a configuration, attachment and removal of the vent filter become possible.

As described above, according to the first aspect of the present invention, when the opening / closing lid is in an open state, the filter for the vent hole can be attached and detached, and the attachment position is determined by the insertion portion, so that the compatibility of the model is improved. improves. In addition, usability is improved. Furthermore, the mounting state is stabilized. Furthermore, since the reduction of the filter effect in the state where the cut is open can be suppressed, the reliability is improved.
In the invention according to claim 2, since the installation and removal of the air vent filter become possible, model compatibility is improved. In addition, usability is improved. Furthermore, the mounting state is stabilized. Moreover, since the error of the attachment position can be absorbed, the filter effect can be maintained.

In addition to the effect of the invention described in claim 2 , the invention described in claim 3 allows attachment and removal of the filter for the air vent when the opening / closing lid is in an open state, and the attachment position is determined by the insertion portion. Therefore, the compatibility of the model is improved. In addition, usability is improved. Furthermore, the mounting state is stabilized.

According to the fourth aspect of the invention, in addition to the effect of the first aspect of the invention, the error of the mounting position can be absorbed, so that the filter effect can be maintained.

In addition to the effects of the invention according to any one of claims 1 to 4 , the invention according to claim 5 can efficiently close the gap when the main body is inclined around the operating rod or the shaft. It is possible to use materials efficiently. Moreover, since the surplus part corresponding to the corner part of the opening / closing lid becomes a standard at the time of installation, installation becomes easy.

In addition to the effects of the invention according to any one of claims 1 to 5 , the invention according to claim 6 can be gripped with the projecting portion upward at the time of installation. It can be used as a guideline.

The invention of claim 7, wherein, in addition to the effect of the invention according to any one of claims 1 to 4, because there is no possibility of rotation of the body at the time of installation, to reduce the surplus of the filter vents Can.

In the invention according to claim 8, when the open / close lid is in the open state, attachment and removal of the vent filter are possible, so that replacement is easy and usability is improved. In addition, since the mounting position is determined by the operating rod or the shaft body, the mounting state is stabilized.
In the invention according to the ninth aspect, since the installation and removal of the air vent filter become possible, model compatibility is improved. In addition, usability is improved. Furthermore, the mounting state is stabilized.

It is a schematic perspective view which shows the external appearance shape of the filter for vents by 1st Embodiment of this invention. It is the schematic perspective view which shows the external shape of the filter for ventilation holes shown in FIG. 1, and the natural supply / exhaust main body which started attachment with respect to the natural supply / exhaust main body. It is a schematic perspective view which shows the external appearance shape of the filter for ventilation holes shown in FIG. 1 and the natural supply / exhaust main body in the middle of attachment with respect to the natural supply / exhaust main body. It is a schematic perspective view which shows the external shape of the filter for vents shown in FIG. 1, and the natural air supply / discharge main body which completed attachment with respect to the natural air supply / exhaust body, and (1) shows the state which attached the opening / closing lid. (2) shows a state in which the opening / closing lid is removed. FIG. 5 is an end view of the VV line shown in FIG. 4. FIG. 5 is a schematic perspective view showing a state in which the vent hole filter is inclined in the vent hole filter and the natural air supply and exhaust main body shown in FIG. 4. It is the enlarged front view which showed the external appearance shape of the outer periphery of the vertex part periphery of the filter for vent holes shown in FIG. FIG. 8 is a plan view schematically illustrating the design theory of the vent filter shown in FIG. 7, where (1) is a non-tilting state and (2) is a tilting state. It is a perspective view which shows the external appearance shape of the filter for vents by 2nd Embodiment of this invention, Comprising: It respond | corresponds to FIG. It is a schematic perspective view which shows the external appearance shape of the filter for ventilation holes shown in FIG. 9 in the state attached with respect to the natural air supply / exhaust body. It is the perspective view which showed schematically the external appearance shape of the conventional natural air supply / exhaust device attached to the wall surface, Comprising: (1) is a thing with an open / close lid closed, (2) is an open / close lid open state belongs to. It is an end view of the XII-XII line shown in FIG. It is the front view which showed roughly the external appearance shape of the conventional natural air supply / exhaust apparatus which removed the opening / closing lid | cover. It is the front view which showed roughly the external appearance shape of each of the natural supply / exhaust main body and filter of the state which removed the filter in the conventional natural supply / exhaust device shown in FIG. It is the perspective view which showed roughly the external appearance shape of the natural supply-and-exhaust main part shown in FIG.

  FIG. 1 is a schematic perspective view showing the appearance of a vent filter according to a first embodiment of the present invention.

  Referring to the drawing, a vent filter 1 is made of an elastic body such as a continuous foam sponge, and is formed in a flat plate-like main body 2 and an opening that is formed in the main body 2 and through which an operating rod or shaft body (not shown) can be inserted. 3, a corrugated cut 4 continuous from the opening 3 to the outer edge of the main body 2, and a protrusion 6 formed in the main body 2 and projecting in the direction opposite to the forming direction of the cut 4 with respect to the opening 3 . The main body 2 has a shape in which a vertex 5 of the outer edge thereof is extended so as to be rounded when viewed from the thickness direction of the main body 2 (hereinafter, this direction is referred to as the front).

  Further, since the air vent filter 1 is made of an elastic body, the shape recovery of the air vent filter 1 itself is high, and the holding portion 83 of the conventional air vent filter 81 as shown in FIG. 14 is not necessary. . Therefore, the natural air supply / exhaust body to which the air vent filter 1 is attached is not required to have a structure compatible with the conventional holder.

  Next, attachment of the vent filter 1 to the natural air supply / exhaust body will be described.

  FIG. 2 is a schematic perspective view showing the external shape of the vent filter and the natural air supply / exhaust body shown in FIG.

  In addition, FIG. 2 is drawn in the state which partially broken the opening-closing lid 16 for description. Further, since the naturally supplied and exhausted main body is basically the same as the conventional example, the description will not be repeated.

  Referring to the figure, when the opening / closing lid 16 is in the open state described above, the vent filter 1 is held so that the cut 4 faces the shaft body 28 of the natural air supply / exhaust body 15 or an operating rod (not shown). The attachment is started by pushing into the gap between the frame body 24 and the opening / closing lid 16 in the direction indicated by the arrow.

  At this time, since the protrusion 6 is located in the direction opposite to the direction in which the cut 4 is formed, the cut 4 can be turned downward by holding the protrusion 6 upward, and the judgment of the guide of the installation direction is made. Easy. Moreover, when attaching, by grasping the protrusion part 6 or the vertex part 5, it is easy to put in the force to push in and it is convenient.

  FIG. 3 is a schematic perspective view showing the external shape of the vent filter and the natural air supply / exhaust body shown in FIG.

  In addition, FIG. 3 is drawing in the state which partially broken the opening-closing lid 16 for description.

  Referring to the drawing, the vent filter 1 is attached, and a part of the cut 4 passes through the shaft body 28 or an operating rod (not shown), so that the cut 4 is widened.

  Fig. 4 is a schematic perspective view showing the external shape of the air vent filter and the natural air supply and exhaust main body shown in Fig. 1 which has been completely attached to the natural air supply and exhaust body, and (1) has an open / close lid attached It shows a state, and (2) shows a state in which the open / close lid is removed.

  With reference to these figures, in the vent filter 1, the opening 3 is fitted to the shaft 28 of the naturally supplied / exhaust main body 15 or the actuating rod 17 of the open / close lid 16, and the cut 4 is restored in shape by elasticity. And the attachment to the natural air supply / exhaust body 15 is completed. At this time, since the shaft body 28 or the operating rod 17 is inserted through the opening 3, the mounting state is stable.

  When removing the vent filter 1 from the natural air supply / exhaust body 15, the cut 4 is widened by pulling in the direction opposite to the direction in which the vent filter 1 was pushed in, and can be easily removed and replaced.

  In the vent filter 1, the position of the outer edge of the main body 2 is set to be larger than the projected position of the outer edge of the opening / closing lid with respect to the main body at the time of installation. Since the entire circumference is closed, even if an error occurs in the installation, the error can be absorbed and the effect of the filter can be maintained.

  Moreover, since the vertex part 5 of the filter 1 for ventilation holes will be in the state which the excess part corresponding to the corner part 18 of the opening-and-closing lid | cover 16 will be exposed by completing attachment, it becomes a standard at the time of attachment and installation is easy. .

  When the installation error occurs or the shaft 28 or the operating rod 17 is larger than the diameter of the opening 3 in a front view, the cut 4 may be attached slightly open. In such a case, in this embodiment, since the cut has a corrugated shape when viewed from the thickness direction of the main body, the reduction of the filter effect is suppressed as compared with a straight cut. Is done. That is, when the cut is straight, a straight air flow route is formed outward, whereas if the cut is a wave shape, the air flow route is formed in a curved shape, so that the filter for the air vent and This is because the contact area increases as compared with the linear contact area.

  FIG. 5 is an end view of the VV line shown in FIG.

  With reference to the drawing, vent filter 1 has a thickness that covers the entire periphery of the gap formed by open / close lid 16 and frame 24 in the mounted state, and additionally, as described above, the open / close lid Since it has a size that closes the entire circumference of the gap formed by the frame 16 and the frame 24, it is possible to reliably exhibit a filter effect on the outside air flowing from the vent 25.

  Further, the moving state of the opening / closing lid 16 in the indoor direction can be adjusted in a plurality of stages, and the vent filter 1 is made of an elastic body. It can be adjusted to fit in the gap formed by the opening / closing lid 16 and the frame body 24, and the mounting state is stable.

  As described above, the vent filter 1 according to the present invention is highly compatible with models, and can exert a filter effect on various natural air supply / exhaust bodies.

  By the way, in the mounting state, the vent hole filter 1 is fixed by inserting the actuating rod or shaft through the opening as described above, and further closing the entire periphery of the gap formed by the frame and the opening / closing lid. In use, an installation may occur in which the body rotates and tilts about the actuating rod or shaft.

  FIG. 6 is a schematic perspective view showing the external shape of the vent filter and the natural supply / exhaust body shown in FIG.

  Referring to the figure, the vent filter 1 is tilted, but the main body 2 blocks the entire periphery of the gap formed by the frame body 24 and the opening / closing lid 16, and maintains the filter effect.

  Here, the state when the main body 2 is inclined will be described.

  FIG. 7 is an enlarged front view showing the external shape of the outer edge around the top of the air vent filter shown in FIG.

Referring to the drawing, in the vent filter 1 according to this embodiment, it is a surplus between the outer edge 7 of the main body 2 and the projection position of the opening / closing lid 16, and the radial direction from the center of the opening 3. Is set so as to increase (L ₁ <˜ <L ₅ ) toward the portion corresponding to the corner portion 18 of the opening / closing lid 16 (for example, L _{1 to} L ₅ ). The effect of this design will be described below.

  FIG. 8 is a plan view schematically illustrating the design theory of the vent filter shown in FIG. 7, where (1) is a non-tilting state and (2) is a tilting state. is there.

  First, referring to (1), the rectangular cover portion 20 has a size that substantially covers the entire circumference of the rectangular covered portion 21 when not inclined. Here, when the cover 20 rotates and tilts about the center point 22, the state (2) is obtained.

  Next, referring to (2), a plurality of non-cover regions 23 in which the cover portion 20 does not cover the covered portion 21 are generated during tilting. Here, as indicated by the double-ended arrows in the figure, the length in the radial direction from the center point 22 to the non-cover region 23 increases toward the vertex of the cover portion 20.

  That is, if the cover part 20 is designed in a shape that covers the non-cover region 23 that may occur, the cover part 20 covers the entire circumference of the covered part 21 even when inclined.

  In the present invention, the cover portion 20 corresponds to the main body of the vent filter, and the covered portion 21 corresponds to the projection position of the open / close lid with respect to the main body. In addition, the filter for the vent according to the present invention stabilizes the attachment state as described above, and the inclination angle is small even if it is inclined. Therefore, the apex of the main body corresponding to the projection position of the corner of the opening and closing lid at the installation time The same effect can be obtained as long as there is a margin from the surrounding excess opening.

Therefore, referring back to FIG. 7, it is a surplus portion between the outer edge 7 of the main body 2 of the vent filter 1 and the projection position of the opening / closing lid 16, and the length in the radial direction from the opening 3 (L ₁ ~L ₅₎ is, by being set to increase toward the portion corresponding to the corner portion 18 of the lid 16, the frame member and the lid 16 for the main body 2 even when the main body 2 inclined not shown It is possible to maintain a state in which the entire circumference of the gap is covered. Further, as described above, since the surplus is set large around the apex portion 5 which is important for the cover state at the time of inclination, the material is efficiently used without waste.

  Next, FIG. 9 is a perspective view showing the appearance of a vent filter according to the second embodiment of the present invention, and corresponds to FIG.

  Referring to the drawing, a vent filter 1 according to this embodiment comprises a main body 2 and a supplement 9. The structure of the main body 2 is basically the same as that of the first embodiment, but there is a difference in that there is no protrusion and the outer edge has a substantially rectangular shape in front view. The supplementary body 9 includes a projecting portion 36, a body portion 10 connected to the lower portion of the projecting portion 36 and extending in a flat plate shape, a plurality of small planar fasteners 12a to 12d disposed on one surface of the body portion 10, and a body portion. A large surface fastener 11a disposed on one surface of the engaging portion 14a in which a part of the left end of the outer edge of the 10 extends and a surface fastener of the engaging portion 14b in which a portion of the right end of the outer edge of the body 10 extends. It is comprised with the large planar fastener 11b arrange | positioned on the surface on the opposite side to the surface where 11a exists. At the lower end of the outer edge of the body portion 10, a slit 13 is formed toward the center of the body portion 10.

  The alternate long and short dash line in the figure shows the state of the supplement 9 attached to the main body 2.

  The supplementary body 9 is detachably attached to the surface on the side of the opening / closing lid when the main body 2 is installed in a natural supply / exhaust main body (not shown) by means of planar fasteners 12a to 12d. Moreover, the opening 3 and the cut 4 of the main body 2 to which the supplementary body 9 is attached are exposed by the slit 13, and there is no influence when the main body 2 is installed in a natural supply / exhaust main body (not shown).

  FIG. 10 is a schematic perspective view showing the external shape of the air vent filter shown in FIG. 9 in a state of being attached to the natural air supply and exhaust main body.

  Referring to the figure, the method for attaching the vent filter 1 to the natural air supply / exhaust main body 15 is basically the same as that of the first embodiment, but after the main body 2 is attached at a predetermined attachment position. Further, since there is a difference in engaging with the opening / closing lid 16, a description will be given.

  As indicated by the one-dot chain line in the drawing, the engaging portions 14 a, b project from the open / close lid 16 at the attachment time point. Each of the protruding engaging portions 14a and 14b is bent along the outer edge of the opening / closing lid 16, and the planar fastener 11a and the planar fastener 11b are engaged on the indoor surface of the opening / closing lid 16. As a result, the body portion 10 is integrated with the opening / closing lid 16, so that the main body 2 can be prevented from rotating around an operating rod or shaft body (not shown).

  Moreover, since there is no possibility that the main body 2 rotates and tilts, a surplus with the projection position of the opening / closing lid 16 on the outer edge of the main body 2 is small, and the material can be used efficiently.

  In addition, in said 2nd Embodiment, although a supplement body is attached to a main body using a planar fastener, what is necessary is just to be able to attach freely.

  In the second embodiment, the supplementary body uses a planar fastener as a rotation prevention means. However, when the main body is installed, the supplementary body is provided with an opening / closing lid so as to prevent rotation of the main body or the shaft body. Anything that engages may be used.

  Furthermore, in each of the above-described embodiments, the cut formed in the vent filter is an angular wave shape, but may be a smooth wave shape or a linear shape.

  Furthermore, in the first embodiment described above, the projecting portion is formed on the main body, but the projecting portion may not be provided.

  Furthermore, in the first embodiment described above, the outer edge of the vent filter has a substantially rectangular shape in which a surplus is set with respect to the projection position of the opening / closing lid on the main body at the time of installation, and the apex portion further Although it is the shape extended | stretched so that roundness might be carried out in front view, it may be a shape without excess.

  Furthermore, in each of the above-described embodiments, when the filter for the vent hole is attached, the operating rod is inserted into the opening, but depending on the model of the natural air supply / exhaust main body, the shaft body covers the operating rod or the operating rod. Since there exists what engages with the shaft body on the outer surface, the working rod or the shaft body may be inserted into the opening.

  Furthermore, in each of the above embodiments, the vent filter is made of open-cell sponge, but may be another vent filter as long as it is made of an elastic material.

  Furthermore, in each of the above embodiments, the shape of the vent filter is specified, but any shape that can close the entire circumference of the gap between the opening / closing lid and the frame body may be used.

  Furthermore, in each of the above embodiments, the open / close lid is attached to a natural air supply / exhaust device that is attached via an operating rod so as to close the frame body and is configured to be movable in the indoor direction from the frame body. The present invention can be similarly applied to a natural air supply / exhaust device having an opening / closing lid that is installed at a predetermined distance from the frame without having an operating rod or the like. In this case, the vent filter has the same effect even if there are no openings or cuts.

  Furthermore, in each of the above-described embodiments, an opening of a specific shape is formed in the main body as an insertion portion through which the operating rod or the like is inserted, but instead of this opening, an opening of another shape, x-shape, + shape It is also possible to use insertion parts with other shapes, such as incisions or simple cuts.

  Furthermore, in the above embodiment, although the open / close lid has a square flat plate shape with rounded corners, the present invention is similarly applied to a square flat plate open / close lid with non-rounded corner portions. it can. Therefore, the square flat plate shape in the present application is used as a concept including a square flat plate shape with rounded corners.

DESCRIPTION OF SYMBOLS 1 ... Filter for vent holes 2 ... Main body 3 ... Opening 4 ... Cut 6 ... Protruding part 7 ... Outer edge 9 ... Supplementary body 14 ... Engagement part 15 ... Natural supply / exhaust main body 16 ... Opening / closing lid 17 ... Actuation rod 18 ... Corner part 24 ... Frame body 25 ... Vent 28 ... Shaft body 36 ... Projection part 61 ... Natural air supply / exhaust device 63 ... Wall surface 65 ... Natural air supply / exhaust body 66 ... Opening / closing lid 67 ... Actuation rod 68 ... Corner part 71 ... Flat surface 74 ... Frame body 75 ... Ventilation opening 78 ... Shaft body 81 ... Ventilation opening filter In the figures, the same reference numerals indicate the same or corresponding parts.

Claims (9)

Attached to the wall surface on the indoor side, a flat plate-shaped opening / closing lid, a flat surface overlapping the opening / closing lid, a vent formed in the center of the flat surface, and extending from the entire outer edge of the flat surface are fixed to the wall surface. and a frame-shaped frame body, the natural feeding said closing lid comprising a natural supply and exhaust body mounting et al are to be opposed to the flat surface, and a vent filter attached to the natural supply and exhaust body An exhaust system ,
The air vent filter comprises a flat plate-like body made of an elastic body,
The open / close lid is attached so as to close the inside of the frame of the frame in the closed state, and is configured to be movable in the indoor direction from the frame, and is spaced apart from the frame in the indoor direction by a certain distance in the open state. It becomes a state with a gap,
At the center of the vent, a shaft which allows the actuating rod protruding from the center of the surface of the open / close lid to slide is bridged and fixed by the reinforcing portion to the inner wall of the vent. Formed
An insertion portion through which the operating rod can be inserted into the main body;
And a continuous cut from the insertion portion to the outer edge of the main body,
Said body, said actuating杆又and into the insertion portion in the lid is opened when the shaft body is in the inserted state, have a thickness and size to close the gap all around,
The natural ventilating apparatus, wherein the cut has a corrugated shape on the outer surface of the body . Attached to the wall surface of the interior side, is fixed to the wall surface extends lid and the lid and a flat surface which overlaps with the vent port formed in the center of the flat surface from the entire circumference edge of the flat surface of the square plate-shaped and a frame-shaped frame body that, the open-close lid nature comprising a natural supply and exhaust body mounting et al are to be opposed to the flat surface, and a vent filter attached to the natural supply and exhaust body An air supply and exhaust system ,
The air vent filter comprises a flat plate-like body made of an elastic body,
The open / close lid is attached so as to close the inside of the frame of the frame in the closed state, and is configured to be movable in the indoor direction from the frame, and is spaced apart from the frame in the indoor direction by a certain distance in the open state. It becomes a state with a gap,
The main body has a thickness and a size that close the entire circumference of the gap in the open state of the open / close lid,
The natural air supply and exhaust system, wherein the outer edge of the main body at the time of installation is larger than the projected position of the outer edge of the open / close lid with respect to the flat surface . As the center of the front Symbol vent is fixed bridging the inner wall of the shaft to be slidable actuation rod projecting from the center of the surface of the vent side the vent of the lid reinforcing portion It is formed on,
An insertion portion through which the operating rod can be inserted into the main body;
And a continuous cut from the insertion portion to the outer edge of the main body,
The natural supply according to claim 2 , wherein the main body has a thickness and a size that close the entire periphery of the gap when the open / close lid is in the open state and the operating rod or the shaft is in the insertion state in the insertion portion. Exhaust system . The open / close lid has a square flat plate shape,
An outer edge of the body at the time of installation, the not larger than the projection position of the outer edge of the lid with respect to the flat surface, natural supply and exhaust device according to claim 1. The surplus length between the outer edge of the main body and the projection position of the open / close lid, and the length in the radial direction from the insertion portion is set to be larger toward the portion corresponding to the corner portion of the open / close lid The natural gas supply and exhaust system according to any one of claims 1 to 4, which is The natural air supply / exhaust device according to any one of claims 1 to 5, wherein the main body is formed with a projecting portion which protrudes in a direction opposite to a forming direction of the cut with respect to the insertion portion. It further comprises a supplement detachably attached to the surface of the main body on the open / close lid side,
Said supplementary body, the actuating杆又of said body during installation of said body has a rotation preventing means for engaging the lid to prevent rotation around the shaft body, any of claims 1 to 4 The natural air supply and exhaust system according to crab. It is a natural air supply and exhaust system attached to the wall on the indoor side,
Yes a frame-shaped frame body extending vents are formed in the center of the flat surface and the flat surface overlapping the lid of the flat plate shape as the lid from the outer edge entire periphery of the flat surface is fixed to the wall surface The opening / closing lid is mounted so as to face the flat surface and close the inside of the frame in the closed state, and is configured to be movable inward from the frame , and in the open state, the frame. A gap is provided in the indoor direction away from the interior by a fixed distance, and a shaft which allows the actuating rod protruding from the center of the surface of the open / close lid on the vent opening side to the center of the vent A natural air supply and exhaust body formed so as to be fixed by bridging the inner wall of the mouth with a reinforcement ;
When said lid is in an open state, is inserted detachably through the gap, the working杆又is provided with a vent filter formed of an elastic body which closes the entire circumference of the gap while engaging said shaft body , Natural supply and exhaust system.   A filter for a vent, which is included in the natural gas supply and exhaust system according to any one of claims 1 to 8.

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