JP2013144901A - Ventilation structure and building - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a ventilation structure superior not only in ventilating performance but also in weathering property.SOLUTION: In an eaves part N of a building 1, a ventilation hole E long-slit shaped and opened approximately downward is provided in the longitudinal direction of the eaves part N communicating an attic space Y as a ventilation space in the building 1 with the outside. Inside the eaves part N, a ventilation passage K1 communicated with the attic space Y and a blind passage K2 as a dead end are formed by an upper side partition member 21 as a partition member.

Description

  The present invention relates to a ventilation structure of a building and a building provided with the ventilation structure.

  In recent buildings, many ventilation structures that can ventilate the attic etc. are implemented for the purpose of increasing the durability of the building body.

  For example, in the ventilation structure disclosed in Patent Literature 1, a ventilation opening is provided on the lower side of the eaves part in consideration of rain, and communicates with the attic space.

JP 2009-13678 A

  However, in the ventilation structure as in Patent Document 1, if the ventilation port is enlarged to increase the ventilation performance, wind and rain blows in from the large ventilation port, resulting in a decrease in the performance of the rain, and ventilation to increase the performance of the rain. There was a problem that the ventilation performance would be reduced if the mouth was made smaller.

  Therefore, an object of the present invention is to provide a ventilation structure that is excellent in ventilation performance and rain performance, and a building equipped with this ventilation structure.

  In order to achieve the above-mentioned object, the ventilation structure of the present invention is provided with a vent opening that is open downwardly in the building eave portion so that the ventilation space of the building communicates with the outside. The partition member is characterized in that a ventilation path communicating with the ventilation space and a dead end path that serves as a dead end are formed.

  Here, it is preferable that the ventilation port has a long slit shape in the longitudinal direction of the eaves portion.

  Moreover, it is good for the branch part of the said ventilation path of the said partition material and the said bag path path to be provided with the water return part which inclines with the downward slope on the said ventilation path side so that the inlet_port | entrance of the said bag path path may be expanded.

  Further, it is preferable that a water return portion inclined at a downward slope is provided on the side of the bag path route in the ventilation path.

  Further, a rain closing ventilation path is formed immediately above the ventilation port by a draining material having a substantially vertical plate part and a water return material having a substantially horizontal plate part, and the ventilation port has the It is preferable to communicate with the ventilation path and the bag path via a rain closing ventilation path.

  The building of the present invention is provided with the above-described ventilation structure of the present invention.

  Such a ventilating structure of the present invention is provided with a vent opening that is open downward in the building eaves part to allow communication between the ventilation space of the building and the outside. A ventilation path that communicates with the ventilation space and a dead-end path that serves as a dead end are formed.

  Because of this configuration, even if the ventilation opening is made large, most of the wind and rain that flows from this ventilation opening once flows into the culvert path, rainwater drains off at the dead end, and only ventilation air is bypassed and ventilated. Since it flows along the route, it can be excellent in ventilation performance and rain performance.

  In addition, even under strong wind and rain, the pressure is weakened in the path of the dead path, so it can cope with storms such as typhoons.

  Here, when the ventilation port is in the shape of a long slit in the longitudinal direction of the eave portion, the ventilation port is short in the horizontal direction toward the ventilation space, and long in the longitudinal direction of the eave portion, Considering both the ventilation performance and the rain performance, it is effective to increase the opening area of the ventilation opening.

  In addition, when a water return part inclined at a downward slope is provided on the side of the ventilation path so as to widen the entrance of the bag path, the branch part between the ventilation path and the bag path of the partition material is widened at the water return part. Since the amount of wind and rain that once flows into the culvert path from the entrance can be increased, the rain performance can be further enhanced.

  Furthermore, if the ventilation path is provided with a water return section that is inclined at a downward slope on the side of the bag path, in the unlikely event that rainwater rises to the top of the ventilation path, the water return section Can be prevented from entering.

  In addition, a rain closing ventilation path is formed immediately above the ventilation opening by a draining material having a substantially vertical plate portion and a water return material having a substantially horizontal plate portion, and the ventilation opening has a rain closing ventilation. When it is in communication with the ventilation route and the bag path route through the route, the wind and rain that flows in from the ventilation opening will be removed by a considerable amount of rainwater flowing through the drainage material and water return material when passing through the rain closing ventilation route. As a result, rain performance can be further improved.

  Such a building of the present invention is configured to include the above-described ventilation structure of the present invention.

  With such a configuration, it is possible to construct a building that exhibits the effects described above.

It is a perspective view which shows schematic structure of the building provided with the ventilation structure of the Example. It is an AA arrow expanded sectional view in FIG. 1, Comprising: It is explanatory drawing for demonstrating schematic structure of the ventilation structure of an Example.

  DESCRIPTION OF EMBODIMENTS Hereinafter, modes for carrying out the present invention will be described based on examples shown in the drawings.

  First, the configuration of the embodiment will be described.

  FIG. 1 shows a schematic configuration of a building 1 having a ventilation structure of an embodiment.

  First, as shown in FIG. 1, this building 1 has a building body 1A built on a foundation 1B.

  In the ventilation structure of this embodiment, as shown in FIGS. 1 and 2, screws 10 as fixing means are attached to the rising end of the roofing material 9 pasted on the upper surface of the field board 7 via the waterproof sheet 8. ···, a plurality of brackets 5, ... are provided at intervals along the eaves.

  Here, the plurality of brackets 5,... Are integrally formed on the lower side thereof by a lower drainage material 51 that prevents the outer wall 11 from being soiled by dripping. It mounts on the upper surface of the crosspiece 11a via the waterproof sheet 12 and the waterproof packing 13.

  In addition, the base part of the lower draining material 51 is provided with a waterproof material 20 on a vertical portion of the rafter receiving material 16 described later by screws 26,... As fixing means so that the plurality of brackets 5,. It is fixed through.

  Further, the screws 10 as a fixing means also fix the inner end portion of the upper partition member 21 as a partition member.

  Further, the rafter receiving member 16 having a substantially L-shaped cross section that supports the rafter 15 provided on the upper flange portion of the ceiling beam 14 is welded to the vertical portions by a lower partition member 22 having a substantially inverted L-shaped cross section. Etc. are joined together.

  A spacer 17 is fixed between the horizontal portion of the upper partition member 21 and the horizontal portion of the lower partition member 22 with screws 18,... As fixing means, and a ventilation path K1 is formed. ing.

  Here, at the outer end of the upper partition member 21, a water return portion 21a inclined at a downward slope toward the ventilation path K1 is provided.

  Further, the water return material 3 is fixed to the outer surface of the vertical portion of the lower partition member 22 with a rivet 23 as a fixing means via a waterproof material 20.

  Here, at the upper end portion of the water return material 3, a water return portion 31 inclined at a downward slope is provided on the outer side of the building 1.

  Further, a draining material 41 having a substantially inverted L-shaped cross section is fixed to the reinforcing rib at the lower portion of the bracket 5 by a rivet 24 as a fixing means. A base portion having a substantially T-shaped cross section of the water-repellent material 42 is fixed by rivets 25 and 25 as fixing means, and a rain-ending ventilation path K3 is formed.

  Then, the eaves part N is formed by fitting the eaves cover 6 into the plurality of brackets 5... And fixing them with screws 19.

  In this way, the eaves cover 6 is fitted and fixed to the plurality of brackets 5,. A ventilation port E is formed which communicates with the attic space Y as a ventilation space opened in a substantially slit-like shape.

  Further, between the upper part of the eaves cover 6 and the upper partition member 21, a dead end path K <b> 2 that forms a dead end is formed.

  As a result, as shown in FIG. 2, the air from outside the building 1 flows in the direction of the arrow W, and after the rain is surely completed, the attic space Y can be sufficiently ventilated. Yes.

  Next, functions and effects of the embodiment will be described.

  In the ventilating structure of such an embodiment, the eaves portion N of the building 1 is provided with a ventilation port E that opens substantially downwardly to communicate the attic space Y as the ventilation space of the building 1 and the outside. Inside N, an upper side partition material 21 as a partition material is formed with a ventilation path K1 communicating with the attic space Y and a dead end path K2 that is a dead end.

  Because of this configuration, even if the ventilation opening E is enlarged, most of the wind and rain that flows from the ventilation opening E once flows into the culvert path K2, and the rainwater is drained and flows down at the dead end, and only the ventilation air is bypassed. Then, since it flows to the ventilation path K1, it can be excellent in ventilation performance and rain performance.

  In addition, even if it receives strong wind and rain, the pressure is weakened in the narrow path K2, so that it can cope with storms such as typhoons.

  Here, the ventilation port E has a slit shape that is long in the longitudinal direction of the eaves portion N.

  For this reason, since the ventilation opening E is short in the horizontal direction toward the attic space Y and is long in the longitudinal direction of the eaves portion N, the opening of the ventilation opening E is considered in consideration of both ventilation performance and rain performance. It is effective for increasing the area.

  Further, at the lower end of the upper partition member 21 as a partition member, which is a branch portion between the ventilation path K1 and the bag path path K2, the water return is inclined downward toward the ventilation path K1 so as to widen the entrance of the bag path path K2. A portion 21a is provided.

  For this reason, since the amount of wind and rain that once flows into the narrow path K2 from the entrance spread at the water return portion 21a can be increased, the rain performance can be further improved.

  Further, the air return path 31 is provided with a water return portion 31 that is inclined with a downward slope toward the side of the culvert path K2.

  For this reason, even if rainwater rises to the upper part of the ventilation path K1, it is possible to prevent the water return portion 31 from entering the attic space Y.

  In addition, a rain closing ventilation path K3 is formed immediately above the ventilation opening E by a draining material 41 having a substantially inverted L-shaped section and a water return material 42 having a substantially inverted L-shaped section. It communicates with the ventilation path K1 and the cover path K2 via the rain closing ventilation path K3.

  For this reason, since a considerable amount of rainwater flows down from the drainage material 41 and the water return material 42 when the wind and rain flowing in from the ventilation port E passes through the rain closing ventilation path K3, the rain closing performance is further improved. Can do.

  The building 1 of such an example is configured to include the ventilation structure of the above-described example.

  With such a configuration, it is possible to construct a building that exhibits the above-described effects.

  As mentioned above, although the form for implementing this invention was explained in full detail based on the Example with reference to drawings, a specific structure is not restricted to an above-described Example, and does not deviate from the summary of this invention. A degree of design change is included in the present invention.

  For example, in the above-described embodiment, the ventilation space is implemented as the attic space Y. However, the present invention is not limited to this, and the ventilation space may be implemented as an underfloor space of a balcony.

  Moreover, in the above-mentioned Example, although implemented by providing the elongate slit-shaped ventilation port E in the longitudinal direction of the eaves part N, it is not limited to this, For example, a some along the longitudinal direction of the eaves part N For example, a circular ventilation port may be provided.

1 Building 1A Building body 1B Foundation 21 Upper partition material (partition material)
21a Water return portion 22 Lower partition material 3 Water return material 31 Water return portion 41 Drainage material 42 Water return material 5 Bracket 51 Lower drainage material 6 Eaves cover 7 Base plate 8 Waterproof sheet 9 Roof material 10 Screw (fixing means)
11 outer wall 11a crosspiece 12 waterproof sheet 13 waterproof packing 14 ceiling beam 15 rafter 16 rafter receiver 17 spacer 18 screw (fixing means)
19 Screw (fixing means)
20 Waterproofing material 23 Rivet (fixing means)
24 Rivet (fixing means)
25 Rivet (fixing means)
26 Rivet (fixing means)
E Ventilation opening K1 Ventilation path K2 Bag path K3 Rain closing ventilation path N Eaves part Y Attic space (ventilation space)

Claims (6)

The eaves part of the building is provided with a vent opening that opens substantially downward to communicate the ventilation space of the building with the outside.
A ventilation structure characterized in that a ventilation path communicating with the ventilation space and a dead end path that serves as a dead end are formed inside the eaves by a partition material.   The ventilation structure according to claim 1, wherein the ventilation port has a long slit shape in a longitudinal direction of the eaves portion.   The branching portion of the partition material between the ventilation path and the bag path path is provided with a water return section inclined at a downward slope toward the ventilation path side so as to widen the entrance of the bag path path. The ventilation structure according to claim 1 or 2.   The ventilation structure according to any one of claims 1 to 3, wherein the ventilation path is provided with a water return portion inclined at a downward slope toward the side of the bag path.   Immediately above the ventilation opening, a rain closing ventilation path is formed by a draining material having a substantially vertical plate portion and a water return material having a substantially horizontal plate portion, and the ventilation opening has the rain closing position. The ventilation structure according to any one of claims 1 to 4, wherein the ventilation structure communicates with the ventilation path and the culvert path through a ventilation path.   A building comprising the ventilation structure according to any one of claims 1 to 5.