JP6096448B2 - Building ventilation - Google Patents

Description

  The present invention relates to a building ventilation member.

  Conventionally, Patent Literatures 1 to 6 propose ventilation members that ventilate the outside air and the eaves ceiling in consideration of waterproofing. In the techniques of Patent Literatures 1 to 5, a porous material having air permeability is provided in a ventilation port to prevent rainwater from entering the building. On the other hand, in the technique of patent document 6, what provided the fireproof cover part facing the ventilation port is proposed.

Japanese Patent Laid-Open No. 2005-180090 Japanese Patent Laid-Open No. 10-046739 Japanese Patent No. 2683109 JP 2003/082783 A Japanese Utility Model Publication No. 06-028006 Japanese Patent Laid-Open No. 10-096314

  In order to provide sufficient waterproofing of buildings, it is common to apply waterproofing measures to the ventilation openings as disclosed in the above-mentioned patent document and also to the building side. However, when the eaves are short, it may not be possible to sufficiently secure the waterproof paper on the building side and the waterproofing measures on the building side may be insufficient. In this case, it becomes necessary to make the waterproofing on the ventilation port side more strict. In the techniques of Patent Documents 1 to 5, when entrusting the expectation of waterproofing mainly to a porous material, it is conceivable to make the pores of the porous material finer or to reduce the size of the pores in order to improve the waterproofing property. However, on the other hand, the ventilation performance and the necessary ventilation area must be sacrificed.

  Also, depending on the material of the porous material, some may absorb moisture when exposed to rainwater, and rust may occur on the surrounding metal parts.Therefore, when selecting a porous material, it is waterproof and breathable. In addition, this point also needs to be taken into consideration.

  The present invention solves the above-mentioned problems, and an object of the present invention is to provide a ventilation member for a building that has both ventilation performance and waterproof performance and is easy to design.

In order to achieve the above object , a typical configuration of a building ventilation member according to the present invention includes a ventilation piece provided with a ventilation hole communicating with outside air, a bottom piece connected to the ventilation piece, and a ventilation hole. and water flashing piece facing, is connected to the bottom piece has a facing plate opposed to the opposite side of said ventilation hole to the water flashing piece, wherein between said facing plates and the water flashing piece A ventilation passage communicating with the ventilation hole is provided, and the ventilation passage is provided with a three-dimensional mesh filter material that has air permeability and loses wind pressure , the three-dimensional mesh filter material includes the ventilation piece, the bottom piece, It is characterized by being surrounded by the facing piece .

  According to the above configuration, it is possible to ensure excellent waterproof performance by inhibiting the flow of air by the water return piece and suppressing the intrusion of rainwater due to the pressure difference by the air-permeable three-dimensional mesh filter material. . In addition, with such a configuration, the restriction on the selection of the three-dimensional mesh filter material can be relaxed and the degree of freedom of design can be improved. It can be used as a former mesh filter material, and the loss of ventilation area can be reduced. Since the waterproof structure can be formed in the building ventilation member, the building ventilation member can be miniaturized, and can be accommodated in the building, and can be easily attached.

It is a section explanatory view showing composition of a 1st embodiment of a ventilation structure using a ventilation member for buildings concerning the present invention. It is a disassembled perspective view which shows the structure of the ventilation member for buildings which concerns on this invention. It is sectional explanatory drawing which shows the structure of 2nd Embodiment of the ventilation structure using the ventilation member for buildings which concerns on this invention.

  An embodiment of a ventilation structure using the ventilation structure according to the present invention will be specifically described with reference to the drawings.

  First, the structure of 1st Embodiment of the ventilation structure using the ventilation member for buildings which concerns on this invention using FIG.1 and FIG.2 is demonstrated.

  1 and 2, reference numeral 1 denotes a field edge protruding in the horizontal direction from an outer wall of a building (not shown), and a nose cover base material 2 is provided at the end of the field edge 1. A nose masking material 3 is fixed to the nose masking base material 2. An eaves ceiling plate 4 is fixed to the lower surface of the field edge 1.

  A building in which fixing pieces 5a, 6a made of horizontal pieces are fixed to the lower surface of the nose cover base material 2 as a base material by a nail or a screw 7 as a fixing means at the end of the eaves ceiling board 4 on the nose cover material 3 side. A ventilation member A is provided. The building ventilation member A ventilates the outside air 14 and the eaves ceiling 15 (the upper space of the eaves ceiling plate 4 shown in FIG. 1).

  The building ventilation member A of the present embodiment is configured by integrally fixing a draining member 5 disposed on the upper side of FIG. 1 and a case member 6 disposed on the lower side of FIG. The long building ventilation member A can be formed by, for example, forming the draining member 5 and the case member 6 by one sheet of steel, stainless steel, aluminum or the like by roll forming or bending, or extrusion molding. The whole is integrally formed. And each fixed piece 5a, 6a of the metal draining member 5 and the case member 6 can be integrally fixed by adhesion | attachment or spot welding.

  The draining member 5 has a water return piece 5c bent at right angles to the fixed piece 5a and a hanging piece 5b bent at right angles to the fixed piece 5a on the opposite side of the water return piece 5c. .

  The case member 6 is bent at a right angle to the fixed piece 6a and hangs down, and a ventilation piece 6c in which a plurality of ventilation holes 6c1 are arranged in parallel in the longitudinal direction and the ventilation piece 6c are connected to the nose masking material 3 side. A bottom piece 6e arranged in a horizontal direction through a convex portion 6d projecting to the left (in FIG. 1), and bent from the bottom piece 6e with a predetermined inclination angle. An accommodation piece 6f to be accommodated, a convex portion 6g connected to the accommodation piece 6f, protruding toward the eaves ceiling plate 4 side (right side in FIG. 1) and into which an end of the noncombustible volume expansion material 8 is inserted, and a bottom piece 6e The opposing piece 6h connected to the housing piece 6f and the convex portion 6g, arranged on the eaves ceiling plate 4 side (the right side in FIG. 1), bent at a right angle to the opposing piece 6h, and arranged horizontally. A second fixed piece 6i inserted between the lower surface of the field edge 1 and the upper surface of the eaves ceiling plate 4, and a right angle to the fixed piece 6a on the opposite side of the ventilation piece 6c A suspended piece 6b extending downward is bent, is connected to the hanging under piece 6b, and a water flashing piece 6j which abuts the rear surface of the fascia member 3. The facing piece 6h is disposed to face the opposite side of the ventilation hole 6c1 with respect to the water return piece 5c.

  The plurality of ventilation holes 6c1 communicating with the outside air 14 provided in the ventilation piece 6c are preferably slit-shaped from the viewpoint of insect protection and cost. A water return piece 5c is provided at a position facing the ventilation hole 6c1. The water return piece 5c is disposed between the ventilation piece 6c and the opposing piece 6h of the case member 6 and hangs down.

  The length of the fixing piece 5a of the draining member 5 in the width direction (left-right direction in FIG. 1) is longer than the length of the fixing piece 6a of the case member 6 in the width direction (left-right direction in FIG. 1). It is set so as to be longer by the distance from the piece 5c. And the attachment hole 9 which consists of an elongate hole which penetrates the screw 7 is provided in the site | part which the fixing piece 5a of the draining member 5 and the fixing piece 6a of the case member 6 overlap.

  The second fixing piece 6i is provided with a mounting hole 6i1, and in the case of a ventilation structure in which the fixing pieces 5a, 6a cannot be fixed to the base material, it becomes a fixing means in the mounting hole 6i1 of the second fixing piece 6i. A nail or screw 7 can be inserted and fixed to the base material.

  A long incombustible volume expansion material 10 is adhered to the outer surface of the hanging piece 5b of the draining member 5 along the longitudinal direction of the building ventilation member A with a double-sided tape or the like. A long incombustible volume expansion material 8 is adhered to the inner surface of the building with a double-sided tape or the like along the longitudinal direction of the building ventilation member A.

  The non-flammable volume expansion materials 8 and 10 are expandable graphite flame retardant and smoke proof sealing materials, and have a property of expanding by about a dozen times when the passing hot air temperature starts to expand at about 180 ° C. Yes. As the incombustible volume expansion materials 8, 10, for example, “Inzmex (trade name)” manufactured by Austrian Chemie Linz and various incombustible volume expansion materials can be applied.

  The non-combustible volume expansion material 10 provided on the outer surface of the hanging piece 5b of the draining member 5 along the longitudinal direction of the building ventilation member A expands due to heat, and the nasal cover material 3 and the nasal cover around the ventilation member A for building. The gap with the base material 2 is closed. Further, the non-combustible volume expansion material 8 provided along the longitudinal direction of the building ventilation member A on the inner surface of the housing piece 6f of the case member 6 expands by heat and closes the ventilation passages 12a to 12c in the case member 6. . Thereby, fireproof performance can be improved.

  The end of the eaves ceiling board 4 on the nose masking material 3 side (the left side in FIG. 1) is inserted into an insertion port formed of a recess formed by the second fixing piece 6i of the case member 6, the opposing piece 6h, and the projection 6g. It can be inserted and attached, and when looking up from under the eaves ceiling board 4, the edge of the eaves ceiling board 4 on the nasal concealment material 3 side (left side in FIG. 1) is made invisible by the convex part 6g to improve the design. I can do it. Moreover, since it is hard to produce the clearance gap between the eaves ceiling board 4 and the case member 6, waterproof performance and fireproof performance improve.

  A long watertight material 11 made of a resin foam or the like is attached to the outer surface of the facing piece 6h of the case member 6 along the longitudinal direction of the building ventilation member A with a double-sided tape or the like. A watertight material 11 made of a resin foam or the like is provided at the insertion port of the eaves ceiling plate 4 made of a recess formed by the second fixed piece 6i of the case member 6, the opposing piece 6h, and the protrusion 6g. Thereby, the waterproof performance of the contact part of case member 6 and eaves ceiling board 4 improves more.

  A ventilation passage 12c communicating with the ventilation hole 6c1 is formed between the water return piece 5c of the draining member 5 and the facing piece 6h of the case member 6. The ventilation passage 12c is provided with a long three-dimensional mesh filter material 13 that is air permeable and that loses wind pressure. The three-dimensional mesh filter material 13 is sized to have a width and length corresponding to the width of the ventilation passage 12c so as to be fitted and locked in the ventilation passage 12c. It can be installed easily and stably.

  The three-dimensional mesh filter material 13 has air permeability and a function of losing the wind pressure that ventilates the ventilation passage 12c formed between the water return piece 5c of the draining member 5 and the opposing piece 6h of the case member 6. Have The three-dimensional mesh filter material 13 can employ a mesh-like porous material. For example, filter materials such as “Everlight SF (trade name)” manufactured by Bridgestone Corporation, which is made of urethane foam with excellent breathability and drainage, can be applied by specially treating ordinary urethane foam to remove the foam film. It is.

  As indicated by the arrow in FIG. 1, the outside air 14 passes through the ventilation passage 12a formed between the ventilation piece 6c and the water return piece 5c through the ventilation hole 6c1 of the ventilation piece 6c, and the water return piece. A three-dimensional mesh filter that ventilates a ventilation passage 12b formed between the lower end of 5c and the bottom piece 6e, and is provided over the entire ventilation passage 12c between the water return piece 5c and the opposing piece 6h. The material 13 is ventilated to ventilate the outside air 14 and the space behind the eaves ceiling 15.

  According to the above configuration, the air flow is blocked by the water return piece 5c during the storm, and the outside air pressure and the inside of the building ventilation member A (the ventilation hole 6c1 and the three-dimensional mesh are formed by the three-dimensional mesh filter material 13). The pressure of the ventilation passages 12a to 12c) up to the filter material 13 can be made substantially the same pressure, and excellent waterproofness can be secured by suppressing the intrusion of rainwater due to the atmospheric pressure difference by the isobaric effect. In addition, rainwater applied to the three-dimensional mesh filter material 13 can be reduced. Moreover, since a waterproof structure can be comprised in the ventilation member A for buildings, the building ventilation member A can be reduced in size, and can be accommodated in the building, and can be easily attached.

  Further, since the rainwater applied to the three-dimensional mesh filter material 13 can be reduced, the restriction of the usable three-dimensional mesh filter material 13 is relaxed, and the degree of freedom in design can be improved. Therefore, although it is a property that easily contains water, it is possible to adopt a mesh-like porous material etc. as a three-dimensional mesh-like filter material 13 that has a high porosity, has a small loss of ventilation area, is inexpensive and easy to install. It becomes.

  In addition, by providing a convex portion 6d that protrudes toward the nose masking material 3 side (left side in FIG. 1) continuously from the lower end portion of the ventilation piece 6c provided with the ventilation hole 6c1, it looks up from below the eaves ceiling plate 4. In this case, it is possible to improve the design by making it difficult to see the ventilation hole 6c1 by the convex portion 6d.

  When considering the maintainability of the building ventilation member A, the building ventilation member A can be easily attached and detached by omitting the second fixed piece 6i.

  In addition, although not shown in figure, you may attach the ventilation member A for buildings to the edge part side of the eaves ceiling board 4 of the outer wall side of a building. In this case, the building ventilation members A shown in FIG. 1 are arranged upside down and the fixing pieces 5a and 6a are fixed to the base material arranged at the end of the eaves ceiling board 4 on the outer wall side of the building.

  As shown in FIG. 1, the building ventilation member A of the present embodiment is an example applied to a ventilation structure that ventilates the upper space of the eaves ceiling plate 4. However, as another ventilation structure, for example, It can also be applied to the ventilation structure of the upper part of a parapet made by raising a wall around a balcony or the like.

  Moreover, although this embodiment demonstrated an example in case the ventilation piece 6c provided with the ventilation hole 6c1 and the water return piece 5c are arrange | positioned in the perpendicular direction, the ventilation hole 6c1 was provided as another ventilation structure. It is good also as a structure by which the ventilation piece 6c and the water return piece 5c are arrange | positioned in a horizontal direction.

  Next, the structure of 2nd Embodiment of the ventilation structure provided with the ventilation member for buildings which concerns on this invention using FIG. 3 is demonstrated. In addition, what was comprised similarly to the said 1st Embodiment attaches | subjects the same code | symbol, and abbreviate | omits description.

  In the said 1st Embodiment, as shown in FIG. 1, the example of the ventilation structure where the eaves ceiling board 4 was arrange | positioned in the horizontal direction was demonstrated. In the present embodiment, as shown in FIG. 3, an example of a ventilation structure in which the eaves ceiling plate 4 is arranged with a predetermined inclination angle will be described.

  In FIG. 3, reference numeral 21 denotes a trunk edge that protrudes downward with a predetermined gradient from an outer wall of a building (not shown), and a nose cover base material 2 is provided on the eaves side of the trunk edge 21. A nose masking material 3 is fixed to the nose masking base material 2. The eaves ceiling plate 4 is fixed to the lower surface of the trunk edge 21.

  The building ventilation member A described above with reference to FIG. 2 is arranged at the end of the eaves ceiling board 4 on the nose cover member 3 side. In the first embodiment shown in FIG. 1, the building ventilation member A is also arranged in the horizontal direction corresponding to the eaves ceiling plate 4 arranged in the horizontal direction, but in this embodiment, as shown in FIG. Corresponding to the eaves ceiling plate 4 arranged with a gradient, the building ventilation member A is also arranged with the same gradient. Then, the fixing pieces 5a, 6a of the building ventilation member A are fixed to the lower surface of the trunk edge 21 as a base material by a nail or a screw 7 as a fixing means. The building ventilation member A ventilates the outside air 14 and the eaves ceiling 15 (the upper space of the eaves ceiling plate 4 shown in FIG. 1). Other configurations are the same as those in the first embodiment, and the same effects can be obtained.

  As an application example of the present invention, it can be applied to a building ventilation member.

A ... Ventilation member for buildings 1 ... Field edge 2 ... Nasal concealment base material (base material)
3 ... Nasal concealment material 4 ... Eaves ceiling board 5 ... Draining members 5a, 6a ... Fixed piece 5b ... Dripping piece 5c ... Water return piece 6 ... Case member 6b ... Dripping piece 6c ... Ventilation piece
6c1… Ventilation hole
6i1 ... mounting hole 6d ... convex part 6e ... bottom piece 6f ... accommodating piece 6g ... convex part 6h ... opposed piece 6i ... second fixing piece 6j ... water return piece 7 ... screw (fixing means)
8: Non-combustible volume expansion material 9: Mounting hole
10… Non-combustible volume expansion material
11… Watertight material
12a ... Ventilation passage
12b Ventilation passage
12c… Ventilation passage
13… Three-dimensional mesh filter material
14… open air
15… eaves ceiling
21… Body edge (base material)

Claims (2)

A ventilation piece provided with a ventilation hole communicating with the outside air;
A bottom piece connected to the ventilation piece ;
A water return piece facing the ventilation hole;
An opposing piece connected to the bottom piece and facing the opposite side of the ventilation hole to the water return piece;
Have
A ventilation passage communicating with the ventilation hole between the water return piece and the facing piece is provided with a three-dimensional mesh filter material that has air permeability and loses wind pressure in the ventilation passage .
The building ventilation member, wherein the three-dimensional mesh filter material is surrounded by the ventilation piece, the bottom piece, and the facing piece . 2. The building ventilation member according to claim 1, wherein the three-dimensional mesh filter material is installed apart from the bottom piece .

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