JP2009074707A - Filter device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a filter device, installed to cover the whole ventilation register without staining a wall surface. <P>SOLUTION: A support plate 20 having a larger diameter than a flange part 82 is mounted in a gap G formed between the flange part 82 of the ventilation register 80 provided on the interior wall surface W and the wall surface W, and a housing body 40 having a filter 50 is fixed to the wall surface W through the support plate 20. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a filter device attached to a ventilation register installed in an indoor ventilation hole, and more particularly to a filter device that can be installed so as to cover the entire ventilation register without polluting a wall surface.

  For measures against “Sick House Syndrome”, the housing that starts construction on or after July 1, 2003 due to the revision of the Building Standards Act uses building materials that emit less chemical substances, and reduces the concentration of indoor chemical substances by ventilation. It became mandatory to reduce.

  In other words, in order to reduce the concentration of chemical substances in the room by ventilation, in principle, all buildings must be equipped with mechanical ventilation equipment with a ventilation rate of 0.5 times / h or more, except for some houses with low airtightness. It was.

  Generally, in this type of mechanical ventilation equipment, a ventilation hole is formed in a wall surface of a living room, and a ventilation unit called a ventilation register is attached thereto. As described in Patent Document 1, the ventilation register includes a cylindrical main body in which a ventilation fan and the like are housed, and a cylindrical main body that is larger in diameter than the ventilation hole and covers the ventilation hole. It is a kind of air supply device that has a flange portion attached to one end and feeds fresh air into the room by a ventilation fan.

  In addition, there is a natural supply type that does not have a forced fan in the ventilation register, but in any case, the air taken into the room through the ventilation register is a centralized ventilation system installed in the bathroom through the room The air is exhausted to the outside through the.

JP-A-2005-90955

  The conventional ventilation register is provided with a mesh filter for preventing insects and the like from entering the room, but these filters cannot capture fine dust such as dust and pollen in the air.

  Therefore, as described in Patent Document 1, there is also provided a device in which a fine dust collection filter is attached so as to cover the ventilation hole of the ventilation register. However, since the dust collection filter described in Patent Document 1 is provided so as to stick to the front surface of the vent hole, when the dust collection filter is clogged, the inflow amount of air decreases at a stretch and the ventilation performance is impaired. There is a risk of being. Furthermore, since the dust collection filter is exposed in the room, the appearance when the dirt accumulates is not good.

  As another problem, since the dust collection filter is provided so as to cover only the ventilation holes, dust accumulated in the dust collection filter may fall and the floor may become dirty. One method for preventing this is to attach a dust collection filter so as to cover the entire ventilation register.

  However, in order to cover the entire ventilation register, the grill that supports the dust collection filter must be mounted directly on the wall surface using double-sided adhesive tape or nails, and some mounting marks are formed on the wall surface. It cannot be denied.

  Then, in order to solve the subject mentioned above, this invention is providing the filter apparatus which can be installed so that the whole ventilation register may be covered, without polluting a wall surface.

  In order to achieve the above-described object, the present invention has several features described below. The invention according to claim 1 is attached to a ventilation register having a sleeve inserted into a ventilation hole provided in a wall surface of the room, and a flange portion formed at one end of the sleeve having a diameter larger than the ventilation hole. The filter device includes a support plate, one end of which is inserted and held in a gap existing between the wall surface and the flange portion, and a device body including a filter. The device body includes the support plate. It is characterized by being attached so as to cover the ventilation register.

  According to a second aspect of the present invention, in the first aspect, the support plate is divided into at least two plate members.

  A third aspect of the present invention is characterized in that, in the second aspect, each of the plate members has a symmetrical shape with the ventilation hole as a center.

  According to a fourth aspect of the present invention, in the first, second, or third aspect, the apparatus main body has a base frame that is attached to the support plate, and a bottom surface that is open to be fitted to the base frame, and the ventilation register A box-shaped housing main body having a volume capable of storing a gas, and the housing main body is provided with a vent hole communicating with the vent hole, and a filter is detachably provided to block the vent hole. It is characterized by being.

  According to a fifth aspect of the present invention, in the fourth aspect of the invention, the device body is provided with a filter cover that covers the filter, and the filter cover rotates around the vent hole to the housing body. The fixing ring is mounted so as to be able to guide the air passing through the filter, and the fixing ring has a notch partly cut out to rotate the filter cover. Thus, the position of the notch is rotated.

  According to a sixth aspect of the present invention, in the fifth aspect of the invention, the housing body is arranged so as to conform in shape to the notch portion of the fixing ring and close the notch portion, thereby stopping the flow of air. A closing plate is provided.

  A seventh aspect of the invention is characterized in that, in any one of the first to sixth aspects, the filter is subjected to electrostatic treatment.

  The invention described in claim 8 is characterized in that, in any one of claims 1 to 7, the support plate is provided with a double-sided adhesive tape as the fixing means.

  According to the first aspect of the present invention, the support plate is held in the gap existing between the wall surface and the flange portion of the ventilation register, and the filter device main body is attached via the support plate, so that the wall surface is completely damaged. The filter device can be mounted so as to cover the ventilation register without.

  According to the invention described in claim 2, the support plate is divided into at least two or more plate members, and by combining them, one large-diameter support plate is formed. The assembly and disassembly of the support plate can be performed easily.

  According to the invention described in claim 3, since the plate member is formed in a symmetrical shape with the ventilation hole as the center, all plate members can be produced with one mold, and the cost can be reduced. .

  According to the fourth aspect of the present invention, since the entire ventilation register can be covered, it is possible to prevent dust from falling from the ventilation register and soiling the floor, and a buffer between the ventilation register and the housing body. Since there is a space, even if the filter is clogged, the inflow of air does not decrease at a stretch.

  According to the fifth aspect of the present invention, the filter is concealed by covering the filter cover, is rotatably attached to the housing body around the vent hole, and air passing through the filter A guide fixing ring is provided. The fixing ring has a notch partly cut out, and the air blowing direction (suction direction) can be freely set by rotating the filter cover. In addition, the dirty filter is exposed in the room and cannot be seen.

  According to the sixth aspect of the present invention, by providing the closing plate that conforms in shape along the notch portion of the fixing ring, the filter cover is rotated to a predetermined position, thereby allowing the air to flow through the vent hole. Can be stopped.

  According to the seventh aspect of the present invention, since the filter is subjected to electrostatic treatment, dust and pollen can be surely prevented by static electricity while ensuring appropriate air permeability without increasing the basis weight of the fiber. Can be captured.

  According to the eighth aspect of the present invention, air is leaked from the gap between the support plate and the base frame because the double-sided adhesive tape as the fixing means is interposed between the support plate and the base frame. In addition to being able to prevent this, the divided plate members can be fixed together.

  Next, embodiments of the present invention will be described with reference to the drawings, but the present invention is not limited thereto. FIG. 1 is an exploded perspective view of a filter device according to an embodiment of the present invention, and FIG. 2 is a cross-sectional view of the filter device attached to a wall surface.

  As shown in FIGS. 1 and 2, the filter device 1 includes a support plate 20 attached along the wall surface, a base frame 30 attached to the support plate 20, a housing body 40 attached to the base frame 30, A filter 50 provided in the vent hole 41 of the housing body 40, a fixing ring 60 for fixing the filter 50 to the housing body 40, and a filter cover 70 that covers the vent hole 41 are provided.

  The filter device 1 is attached so as to cover the ventilation register 80 installed on the wall surface W in the room. As shown in FIG. 2, the ventilation register 80 is formed at one end of the ventilation sleeve 81 having a cylindrical ventilation sleeve 81 inserted into a ventilation hole H formed in the wall surface W and a diameter larger than the ventilation hole H. And the flange portion 82 is disposed along the wall surface W so as to block the ventilation hole H.

  In this embodiment, the flange portion 82 is formed with a grill 83 for taking in outside air. The ventilation register 80 may be either a naturally aspirated type or a forced air type equipped with a ventilation fan (not shown) inside.

  The support plate 20 is made of a synthetic resin plate such as polycarbonate, and is attached so as to be inserted into the gap G between the flange portion 82 and the wall surface W of the ventilation register 80. Therefore, the support plate 20 is formed by combining a plurality of plate members 20a to 20d in this example. In this example, the support plate 70 is made of polycarbonate resin. However, the support plate 70 may be made of strong resin or metal.

  Each plate member 20a-20d is formed in the same symmetrical shape centering on the ventilation hole H of the wall surface W, and it demonstrates below taking the plate member 20a as an example below.

  The plate member 20 a is formed in a substantially trapezoidal plane, and the side 21 corresponding to the short side is formed in an arc shape so as to abut along the outer peripheral edge of the sleeve portion 81. The plate member 20 a has a thickness that allows insertion into a gap G that exists between the wall surface W and the flange portion 82.

  By inserting the side 21 of each of the plate members 20a to 20d into the gap G between the wall surface W and the flange portion 82 and abutting the opposing inclined sides 22 and 22 of the adjacent plate members 20a to 20d, the flange portion 82 is obtained. A support plate 20 is formed around.

  In this example, each of the plate members 20 a to 20 d is formed in a symmetrical shape with the ventilation hole H as the center, but can be inserted between the gap G existing between the wall surface W and the flange portion 82. As long as it is an asymmetric shape.

  Referring again to FIG. 1, the base frame 30 includes a flat base portion 31 disposed along the support plate 20 and an upright portion 32 erected vertically from one end of the base portion 31 in the direction opposite to the wall surface W. And is formed as a rectangular frame that can be fitted along the bottom opening of the housing body 40.

  The base 31 has a size that can be arranged along substantially the outer periphery of the support plate 20, and a double-sided adhesive tape for fixing the base frame 30 to the support plate 20 on the back surface side (right side surface in FIG. 2). T is provided.

  As shown in FIG. 3, the base portion 31 is provided with a nail hole 35 that is used when the base frame 30 is directly fixed to the wall surface W without using the support plate 20. The nail hole 35 is a through hole that obliquely penetrates the base portion 31, and an inclined base 36 for inserting the nail P obliquely is integrally formed on the inner surface side of the base portion 31.

  In this example, three nailing holes 35 are provided as two groups on each side, and a total of eight places are provided, but the number is not particularly limited.

  The standing portion 32 is erected with a predetermined height along the edge of the base portion 31, and a locking claw 33 for fixing the housing body 40 is provided on a part of the standing portion 32. In this example, the locking claws 33 are provided in two places for each upright portion 32 on one side, for a total of eight places, but the number and shape can be arbitrarily selected according to the specifications.

  As shown in FIG. 3, the locking claw 33 is composed of a tongue piece formed so as to remain between a pair of slit grooves 34, 34 formed from the upper end of the upright portion 32 toward the base portion 31. On the outer peripheral surface side of the distal end, a convex portion 33a that is locked to a locking convex portion (not shown) formed on the inner peripheral surface of the housing body 40 is provided.

  1, 2 and 4, the housing body 40 is formed in a box shape having a bottom surface (the right side surface in FIG. 2) and a size capable of accommodating the flange portion 82 of the ventilation sleeve 81. In the center, an air hole 41 serving as a passage for air is opened. The housing body 40 is also made of a synthetic resin molded product such as ABS, but may be made of metal.

  As shown in FIG. 2, a concave step surface 42 is provided on the inner peripheral surface of the bottom side opening of the housing body 40, and the upright portion 32 of the base frame 30 is accommodated along the step surface 42. It is like that. Note that a locking projection (not shown) that is locked by the locking claw 33 described above is provided on the step surface 41.

  In this example, the housing main body 40 is formed of a rectangular box, but may be formed in a cylindrical shape, and if the housing body 40 has at least a size that can accommodate the flange portion 82, the shape and material thereof conform to the specifications. It can be arbitrarily selected depending on the case.

  As shown in FIG. 4A, locking protrusions 43a to 43d for locking the fixing ring 60 are provided at four positions at 90 ° intervals on the periphery of the vent hole 41 of the housing body 40. Yes. As shown in FIG. 4B, the locking projections 43a to 43d are erected almost vertically from the upper surface of the housing main body 40, and a part of the flange ring 61 of the fixing ring 60 is formed at the base thereof. A locking groove 44 to be locked is provided.

  Of the four locking projections 43a to 43d, between the two locking projections 43c and 43d on the lower side (see FIG. 6) in front, the guide rib 62 formed on the fixing ring 60 is engaged. Thus, a closing plate 45 for stopping the air flow is formed.

  The closing plate 45 is erected substantially vertically from the upper surface of the housing main body 40, and is formed in an arc shape so as to straddle between the locking convex portions 43c and 43d. As shown in FIG. 6B, the closing plate 45 is configured to close the notch portion 64 by matching the closing plate 45 along the notch portion 64 of the guide rib 62 of the fixing ring 60.

  A first positioning marker 46 is provided in the lower center of the upper surface of the housing main body 40 to define a locking position of the filter cover 70 described later. In this example, the first positioning marker 46 is composed of a concave portion recessed from the upper surface of the housing body 40, but may be a convex portion or a sticker or the like to easily recognize the locking position. If it is a thing, it can change arbitrarily according to a specification.

  Referring again to FIG. 1, the filter 50 is preferably made of a nonwoven fabric filter capable of removing fine dust, and is formed in a disk shape having a diameter larger than at least the vent hole 41 of the housing body 40.

  The filter 50 is provided with a pair of ears 52, 52 projecting in the radial direction, and positioning holes 51, 51 for positioning the filter 50 in the housing body 40 at the respective ears 52, 52. Is provided.

  By inserting the positioning holes 51, 51 into the locking projections 43 a, 43 b, the filter 50 is temporarily fixed so as to close the vent hole 41 of the housing body 40. In order to remove fine dust such as pollen, the basis weight of the filter 50 may be increased to narrow the gap. However, when the gap is narrowed, the air flow becomes worse.

Therefore, in this example, the filter 50 includes a dust collection filter in which an anti-allergen / anti-virus fiber “Nano Attack” (registered trademark) manufactured by Toyobo Co., Ltd. is formed on a nonwoven fabric at a basis weight of 80 to 100 g / m ^2, and a static filter. Two sheets of superposed electrofilters are used, but other non-woven fibers may be used.

  According to this, by using two dust collection filters and electrostatic filters in a stacked manner, the dust collection rate can be improved without increasing the basis weight and without changing the air inflow amount.

  In the present invention, the specific configuration of the filter 50 is an arbitrary matter, but preferably, in a dust collection filter test in accordance with JIS-B9908, 0.3 μ dust is 40% or more, and 15-type dust is 90% or more. It is preferable to have filter performance that can be removed.

  Referring to FIG. 5, the fixing ring 60 stands substantially perpendicular to the flange ring 61 disposed along the peripheral edge of the vent hole 41 of the housing body 40 and in a direction away from the housing body 40 from the flange ring 61. And a guide rib 62 provided.

  The flange ring 61 has a radius that is substantially the same as the distance from the center of the vent hole 41 to the inner peripheral surface of the locking groove 44 of each locking projection 43a to 43d, and rotates along the locking groove 44. It has the possible size.

  On the outer peripheral surface of the flange ring 61, when the fixing ring 60 is attached to the housing main body 40, a notch portion 63 for escaping the locking projections 43a to 43d corresponds to the locking projections 43a to 43d. There are four places.

  Referring also to FIG. 6B, the guide rib 62 has an arc shape extending symmetrically from the top of the flange ring 61, and a part of the arc is cut out (notch 64). Since the guide rib 62 and the closing plate 45 formed on the housing main body 40 side coincide with each other, the notch 64 is closed, so that the air flow can be stopped.

  The guide rib 62 is provided with a plurality of locking holes 65 for fixing the guide rib 62 to the filter cover 70 at predetermined intervals, in this example, six locations. As shown in FIG. 2, the fixing ring 60 is integrally fixed to the back surface side of the filter cover 70 by inserting the bosses 71 provided on the back surface side of the filter cover 70 into the locking holes 65.

  The filter cover 70 is formed of a flat rectangular panel. On the back surface side (right side surface in FIG. 2), there are six bosses 71 for fixing the fixing ring 60 corresponding to the locking holes 65 in an annular shape. They are arranged side by side.

  A second positioning marker 72 is provided on the surface side of the filter cover 70. The second positioning marker 72 is formed of a concave portion provided at the center lower portion of the filter cover, and faces the first positioning marker 46 provided on the housing body 40 side described above, so that the filter cover 70 is brought into a correct locking position. Can lead.

  In this example, the filter cover 70 is formed of a rectangular panel, but other than this, a circular panel may be used, and the shape thereof is arbitrary according to the specification. Moreover, various color schemes or decorations may be applied according to the room.

  Next, an example of the attachment procedure of the filter device 1 will be described with reference to the drawings. First, the filter 50 is attached to the housing body 40 as a preparatory work. As shown in FIG. 1, when attaching the filter 50, first, the attachment holes 51, 51 of the filter 50 are aligned with the locking projections 43a, 43b of the housing body and inserted.

  Next, the filter cover 70 to which the fixing ring 60 is attached in advance is attached to the housing body 40. First, as shown in FIG. 6A, the filter cover 70 is pressed toward the housing body 40 in a state where the filter cover 70 is rotated about 45 ° from the position where the positioning markers 46 and 72 are opposed to each other.

  In this state, since each notch 63 provided in the flange ring 61 and each locking projection 43a to 43d face each other, the flange ring 61 contacts the outer peripheral edge of the vent hole 41 of the housing body 40, The filter 50 is sandwiched.

  Next, as shown in FIG. 6B, the flange cover 61 is engaged with the engaging groove 44 by rotating the filter cover 70 clockwise by approximately 45 ° so that the positioning markers 46 and 72 face each other. The filter cover 70 is fixed by the locking projections 43a to 43d.

  Thus, the filter 50 is attached along the vent hole 41 by the filter 50 being held between the housing body 40 and the fixing ring 60. In the state shown in FIG. 6B, the closing plate 45 is disposed so as to close the notch 64 of the guide rib 62, so that the air flow is stopped. Therefore, by rotating the filter cover 70 at intervals of 90 °, the notch 64 is opened and air can be taken in from a desired direction.

  Separately, the support plate 20 is attached between the wall surface W and the ventilation register 80. As shown in FIG. 7A, the plate member 20 a is inserted into the gap G existing between the wall surface W and the flange portion 82 of the ventilation register 80, and the side 21 extends along the outer peripheral surface of the ventilation sleeve 81 of the ventilation register 80. Until it touches.

  Accordingly, the plate member 20a is held by the gap G. In the same manner, the remaining three plate members 20c to 20d are sequentially inserted, and the opposing inclined surfaces 22 of the adjacent plate members 20a to 20d are opposed to each other, as shown in FIG. 7B. In addition, one support plate 20 is assembled. In this state, the support plate 20 is held only by the holding force with the gap G.

  When replacing the filter 50, the filter 50 can be easily replaced by removing the filter cover 70 from the housing body 40 in the reverse order of the above-described mounting procedure.

  Next, the separator (not shown) of the double-sided pressure-sensitive adhesive tape T installed on the back surface side of the base frame 30 is peeled off, and the adhesive surface that appears is attached along the outer peripheral edge of the support plate 20, so that FIG. As shown, the base frame 30 is fixed on the support plate 20, and the plate members 20a to 20d are fixed integrally.

  In order to directly fix the base frame 30 to the wall surface W without using the support plate 20, as shown in FIG. 3, the base plate 30 is fixed to the wall surface by driving nails P into the nailing holes 35 provided in the base portion 31. It can also be fixed to.

  Thereafter, the housing body 40 is pushed in along the upright portion 32 of the base frame 30, and the locking claw 33 of the upright portion 32 is engaged with a convex portion (not shown) formed on the inner peripheral surface of the housing main body 40. By stopping, the filter device 1 is installed so as to cover the ventilation register 80.

  In this example, the base frame 30 is affixed to the support plate 20 via the double-sided adhesive tape T. However, in consideration of hermeticity and simplicity, an adhesive tape based on a closed cell foam is more preferable. . In addition to this, fixing means such as a suction tape having a large number of micro suction cups may be used, or the double-sided adhesive tape T may be attached by physical fitting means.

The disassembled perspective view of the filter apparatus which concerns on one Embodiment of this invention. Sectional drawing of the state which attached the said filter apparatus to the wall surface. The partial expansion perspective view which expanded a part of base frame. The perspective view of a housing main body. The perspective view of a fixing ring. (A) The reference front view in which a fixing ring shows an unlocked state, (b) The reference front view in which a fixing ring shows a locked state. (A)-(d) Explanatory drawing explaining the assembly procedure of a support plate.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Filter apparatus 20 Support plate 20a-20d Plate member 30 Base frame 31 Base part 32 Standing part 33 Locking claw 40 Housing main body 41 Vent hole 43a-43d Locking convex part 46 1st positioning marker 50 Filter 60 Fixing ring 61 Flange ring 62 Guide rib 63 Notch 70 Filter cover 72 Second positioning marker 80 Ventilation register 81 Ventilation sleeve 82 Flange T Double-sided adhesive tape W Wall surface

Claims (8)

In a filter device attached to a ventilation register having a sleeve inserted into a ventilation hole provided in a wall surface of the room, and a flange portion formed at one end of the sleeve with a diameter larger than the ventilation hole,
One end has a support plate that is inserted and held in a gap existing between the wall surface and the flange portion, and an apparatus main body including a filter, and the apparatus main body is connected to the ventilation register via the support plate. It is attached so that it may cover up.   The filter device according to claim 1, wherein the support plate is divided into at least two plate members.   The filter device according to claim 2, wherein each of the plate members has a symmetrical shape with the ventilation hole as a center.   The apparatus main body includes a base frame attached to the support plate, and a box-shaped housing main body having a bottom opening that can be fitted into the base frame and capable of accommodating the ventilation register. The filter according to claim 1, 2 or 3, wherein the main body is provided with a vent hole communicating with the vent hole, and a filter is detachably provided to close the vent hole. apparatus.   The apparatus main body is provided with a filter cover that covers the filter, and the filter cover is rotatably attached to the housing main body with the vent hole as a center, and air passing through the filter can be removed. A fixing ring for guiding is provided, and the fixing ring has a notch partly cut out, and the position of the notch part is rotated by rotating the filter cover. The filter device according to claim 4.   6. The housing main body is provided with a closing plate that conforms in shape to the notch of the fixing ring, is disposed so as to close the notch, and stops air flow. The filter device according to 1.   The filter device according to claim 1, wherein the filter is subjected to electrostatic treatment.   8. The filter device according to claim 1, wherein the support plate is provided with a double-sided adhesive tape as the fixing means.

Images