JP3755096B2 - Flat duct for ventilation - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a flat duct for ventilation of a roof of a building such as a house.
[0002]
[Prior art]
Conventionally, on roof tiles that are covered with roof tiles made of flat tiles, etc., on the basement plate supported by the hut assembly, a ventilation opening communicating with the back of the hut is formed in the ridge to promote ventilation of the back of the hut. On the other hand, a ventilation structure is known in which rainwater is prevented from entering the back of the hut by covering the ventilation openings directly above the ventilation openings with swinging tiles or wings.
[0003]
[Problems to be solved by the invention]
However, the roof ventilation structure illustrated above is effective for discharging the air in the vicinity of the ridge at the back of the hut to the outside, but has a drawback that damp air tends to stay in the vicinity of the eaves.
[0004]
Therefore, in order to positively discharge the air staying at the eaves side of the hut back to the outside, one or a plurality of through-holes communicating with the shed are formed at appropriate locations near the eaves of the field plate, and these penetrations are made. It has been proposed to ventilate through the mouth, but if the roofing material is damaged or falls off the field board due to the influence of an earthquake or typhoon, rainwater easily flows into the shed from the through-hole. Problems arise.
[0005]
The object of the present invention has been made in view of the above problems, and provides a flat duct for ventilation of a roof that can always improve the air permeability of the entire shed without the risk of rainwater entering the shed. .
[000 6 ]
[Means for Solving the Problems]
The flat duct for ventilation according to claim 1 is a flat duct for ventilation arranged in a gap between a base plate that has a through-hole communicating with the back of a hut and a roof covering material that is laid on the base plate. One vent hole connected to the mouth is formed on the ridge side of the bottom member formed with a plurality of protrusions at predetermined intervals , and the other vent hole is formed on the eaves side of the one vent hole. Is.
[000 7 ]
The flat duct for ventilation according to claim 2 , wherein the other ventilation opening is open to the eaves side, and a plurality of rectifying blades extending in a direction in which the field plate is inclined is provided behind the other ventilation opening. These are arranged in parallel at predetermined intervals in the column direction of the field plate.
[000 8 ]
The flat duct for ventilation according to claim 3 , wherein the other ventilation opening is opened in a direction of the field plate and extends in the direction of the field plate in the depth direction of the other side of the ventilation plate. The blades are arranged in parallel at a predetermined interval in the direction in which the field plate is inclined.
[000 9 ]
DETAILED DESCRIPTION OF THE INVENTION
As shown in FIGS. 1 and 2, the ventilation flat duct 7 according to the embodiment of the present invention forms a through-hole 3 communicating with the roof back 2 in the field plate 1, and the field plate 1 and the flat roof tile or the like. One ventilation port 13 that is installed in a gap with a plurality of roof covering materials 4 and that is directly connected to the through-hole 3 and the other ventilation port located on the eaves side of the one ventilation port 13 5 and 6 are formed.
[00 10 ]
The field board 1 is a flat plate material supported at a predetermined inclination angle by a rafter 8 constituting a hut set such as a gable roof, and a plurality of tiles 9 made of square bars or the like are fixed on the upper surface thereof. . The plurality of roof tiles 9 are fixed with wood screws 10 or the like at equal intervals in the direction in which the field plate 1 is inclined (hereinafter referred to as the inclination direction x), and the roof frame 4 is long above the roof tile 9. It is fixed with a wood screw 11 or the like. The through-hole 3 is formed by forming an oblong hole in a plan view extending in the row direction y on the baseboard 1 near the ridge between two adjacent tile rungs 9. Is not limited.
[00 11 ]
Moreover, as shown in FIG. 3, in order to lay the waterproof sheet 12 such as asphalt roofing on the upper surface of the field board 1, a part of the part corresponding to the through-hole 3 of the waterproof sheet 12 is notched, and from the ridge side. It is preferable to polymerize the notched lower edge 12 a on the ventilation flat duct 7 so that rainwater flowing toward the eaves side does not enter between the base plate 1 and the ventilation flat duct 7.
[00 12 ]
As shown in FIGS. 2 to 4, the ventilation flat duct 7 is joined to the top surface of the base plate 1 with a wood screw or a nail or the like, and to the top surface of the bottom member 14 by welding or the like. The upper member 15 is formed. The bottom member 14 opens one ventilation port 13 at a position corresponding to the through hole 3 of the base plate 1, that is, at a position on the ridge side of the bottom member 14 at the time of installation, and the one ventilation port 13 is opened. A pair of lip pieces 13 a that immerse into the through hole 3 is suspended from the edge of one of the ventilation paths 13 so that it can be easily positioned in the through hole 3 of the field plate 1.
[00 13 ]
The upper member 15 encloses the space above the bottom member 14 and secures a space communicating with one of the ventilation openings 13. The upper member 15 forms the other ventilation opening 5 on the end surface of the eaves side, The other ventilating opening 6 that opens in the direction of the row y is formed on the end face, and the opening portion of the lower surface is fixed to the bottom surface member 14. The outer shape of the upper member 15 may be a rectangular parallelepiped, but corresponds to the vicinity of the upper member 15 directly above the one vent hole 13 in order to prevent the air rising through the one vent hole 13 from swirling. It is good also considering the part to do as the curved surface or inclined surface 15a of a shape which approaches the base plate 1. FIG.
[00 14 ]
Further, behind the other vent hole 5, a single louver 17 is attached as a plurality of rectifying blades 16 extending in the inclination direction x and arranged in parallel at a predetermined interval in the direction y. At the back of the other ventilation port 6, another louver 19 is attached as a plurality of rectifying blades 18 extending in the swaying direction y and arranged in parallel at a predetermined interval in the inclined direction x.
[00 15 ]
As shown in FIG. 5, the one louver 17 has a top portion 17 a and a bottom surface that are joined to the upper member 15 by alternately folding up and down strip-like thin steel plates extending in the direction of row y at regular intervals. The corrugated plates are formed with valley portions 17b joined to the member 14 and the rectifying blades 16 between the top portions 17a and the valley portions 17b. The other louver 19 may be a corrugated plate similar to the one louver 17 in a posture along the side edges of the bottom member 14 and the upper member 15, but the other louver 19 is connected to the other vent 6 such as rainwater. In order to prevent intrusion, it is preferable that each rectifying blade 18 is inclined upward toward the back of the other vent 6 as shown well in FIG.
[00 16 ]
According to the ventilation structure of the roof described above, as shown by phantom lines in FIG. 2R> 2 and FIG. 4, the air in the back of the hut 2 passes through the through-hole 3 of the field plate 1, and passes from one ventilation port 13 to the bottom member. 14 and the inside of the space surrounded by the upper member 15 can be discharged from the other vents 5 and 6 to the gap between the field board 1 and the roof covering 4 and further, as shown by the phantom line in FIG. It can be discharged outside through the gaps between the brazing materials 4. In addition, since the other ventilation openings 5 and 6 are positioned on the eaves side, which is below the through-hole 3, even if the roof covering material 4 is damaged or dropped from the base plate 1, these other ventilation openings 5 are provided. , 6 does not flow into the inside of the cabin 2 through the through-hole 3.
[00 17 ]
Further, the ventilation flat duct 7 is configured such that one louver 17 and the other louver 19 interposed between the bottom member 14 and the upper member 15 are spacers for ensuring a gap between the bottom member 14 and the upper member 15. Since it plays a role, it does not easily collapse even if an operator steps on the roof by mistake.
[00 18 ]
One louver 17 or another louver 19 may be omitted. In this case, a support column that can hold a gap between the bottom member 14 and the upper member 15 may be provided. Further, in the above description, the ventilation flat duct 7 is formed with the other ventilation opening 5 opened in the inclination direction x and the other ventilation opening 6 opened in the transverse direction y. Any one of the ventilation openings 6 may be omitted. For example, by omitting the other louver 19 and closing the other vent 6, only the other vent 5 may be formed in the ventilation flat duct 7 as shown in FIG. 6.
[00 19 ]
In this case, by embossing the bottom surface member 14 or the like, as shown in FIG. 7, a plurality of projections 20 projecting upward are provided at predetermined intervals on a portion closer to the ridge side than one louver 17 of the bottom surface member 14. Protruding each time has an advantage that the backflow of rainwater can be reliably prevented without impairing the air permeability. That is, since one louver 17 allows ventilation only in the inclination direction x, rainwater that is swept by strong winds blowing from the gaps between the roof roofing materials 4 and trying to flow backward from the eaves side to one ventilation path 13 is shown in FIG. As shown by the imaginary line, it rises in a straight line from the eaves side to the building side. For this reason, all rainwaters that are going to flow backward collide with the projections 20 and are scattered on the left and right sides, and are prevented from rising to one of the ventilation paths 13, so that there is a gap between the other ventilation opening 5 and the one ventilation path 13. Only air will pass through.
[00 20 ]
The bottom member 14 or the upper member 15 may be an injection molded product made of synthetic resin. Furthermore, one louver 17 and another louver 19 may be integrally formed on the bottom member 14. In this case, one louver 17 is formed by projecting a plurality of ridges extending in the inclination direction x at predetermined intervals in the row direction y at the edge portion on the eaves side of the bottom surface member 14, Another louver 19 may be configured by projecting a plurality of ridges extending in the column direction y at predetermined intervals in the inclined direction x. Further, a nail hole 14a for inserting a nail or the like when nailing the entire flat ventilation duct 7 to the base plate 1 may be formed near the periphery of the bottom member 14.
[00 21 ]
【The invention's effect】
According to the ventilation structure of the roof according to claim 1, since the flat duct for ventilation is connected to the through hole formed in the base plate, the damp air staying in the vicinity of the eaves in the back of the hut is penetrated through the base plate. It can be discharged from the mouth through the ventilation flat duct. Moreover, the ventilation flat duct is connected to the pier side of the bottom member at the through-opening and the eaves side is open, so even if the roofing material is damaged or falls off the field plate, the rainwater is flattened for ventilation. Without flowing into the inside of the duct, it is possible to reliably prevent rainwater from flowing from the through hole to the back of the hut.
[00 22 ]
According to the flat duct for ventilation according to claim 1, one ventilation port connected to the through-hole is formed on the ridge side of the bottom member formed with a plurality of protrusions at predetermined intervals , and the eaves edge is located above the one ventilation port. On the side, the other vent opening that opens to the gap between the field board and the roofing material is formed, so that the moist air staying in the vicinity of the eaves in the back of the hut is placed in the gap between the field board and the roofing material. It can be discharged to the outside through a gap between the roofing materials. Moreover, because the other vent is formed closer to the eaves than the one vent, rainwater flows into the flat duct for ventilation even if the roofing material is damaged or falls off the field plate. Therefore, it is possible to reliably prevent rainwater from flowing into the cabin from the through hole. Moreover, there exists an advantage that it can be easily attached to the existing roof only by forming a through-hole in a field board. In addition, since a plurality of protrusions are formed at predetermined intervals on the inner bottom surface member, rainwater that tries to flow backward from the eaves side to the through-hole collides with the protrusions because of strong wind blown from the gap between the roof roof materials. Scattered to the left and right, only air passes between the vent and one vent. Therefore, there is an advantage that the backflow of rain water can be reliably prevented without impairing the air permeability.
[00 23 ]
According to the flat duct for ventilation according to claim 2, since ventilation is allowed only in the direction in which the base plate is inclined by the plurality of rectifying blades, the air is blown into the flat duct for ventilation from the gap between the roofing materials. The wind blows straight into the back of the hut along the direction in which the field board slopes through the through hole. In particular, when the ventilation flat ducts are attached to a pair of baseplates facing each other at the ridge side, the wind blown into the back of the hut from the through-hole of one of the baseplates Since it goes straight in the direction of inclination and blows through the through hole of the other field plate, there is an advantage that the air permeability of the shed is improved and the shed can be ventilated more efficiently.
[00 24 ]
According to the flat duct for ventilation according to claim 3, since ventilation is allowed only in the direction of the field plate by the plurality of rectifying blades, the air is blown straight into the back of the hut along the direction of the substantially parallel line through the through hole. become. In particular, when the ventilation flat ducts are lined up in the direction of the field plate and attached to multiple locations, respectively, the wind blown into the back of the shed through the single ventilation flat duct will pass through the back of the field plate. Since it goes straight in the crossing direction and blows to the outside through other flat ducts for ventilation, there is an advantage that the air permeability of the hut is improved and the hut can be ventilated more efficiently.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view of a roof ventilation structure using a flat duct for ventilation according to an embodiment of the present invention.
FIG. 2 is a perspective view of a ventilation duct according to an embodiment of the present invention.
FIG. 3 is a cross-sectional view of a main part of a roof ventilation structure according to an embodiment of the present invention.
FIG. 4 is a plan view of a ventilation duct according to the embodiment of the present invention.
FIG. 5 is a cross-sectional view of a main part of a ventilation duct according to an embodiment of the present invention.
FIG. 6 is a perspective view of a modified example of the ventilation duct according to the embodiment of the present invention.
FIG. 7 is a perspective view of a main part of a modification of the ventilation duct according to the embodiment of the present invention.
FIG. 8 is a plan view of an essential part of a modification of the ventilation duct according to the embodiment of the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Field plate 2 Back of a hut 3 Through-hole 4 Roof covering material 5 The other ventilation opening 6 The other ventilation opening 7 The flat duct for ventilation 13 One ventilation opening 17 One louver 19 Other louver 20 Protrusion

Claims (3)

A flat duct for ventilation arranged in a gap between a base plate formed with a through hole communicating with the back of the hut and a roof covering material sown on the base plate, and one ventilation port connected to the through port is provided at a predetermined interval A flat duct for ventilation, which is formed on a ridge side of a bottom member in which a plurality of protrusions are formed each time , and the other ventilation port is formed closer to the eaves side than the one ventilation port. The other ventilation opening is open to the eaves side, and a plurality of rectifying blades extending in the direction in which the field plate is inclined are spaced apart from each other at a predetermined interval in the direction of the field plate. parallel claims 1 flat duct for ventilation according. The other vent opening is opened in the direction of the field board and a plurality of rectifying blades extending in the direction of the field board are arranged in the direction in which the field board is inclined. flat ducts for ventilation according to claim 1, wherein in parallel at intervals.

Images