JPH10131321A - Eave soffit ventilating construction - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide eave soffit ventilating construction hardly deformed even if the dead weight of the eave soffit is increased due to the quality of the material and eaves projection size without damaging function capable of ventilating the ceiling. SOLUTION: Eave soffit ventilating construction capable of being ventilated from between an eave soffit 10 and a building skeleton 20 is equipped with a spacer 30 fixed to the building skeleton 20 on the side where the eave soffit 10 projects in order to form a ceiling ventilation course 70 formed of a course capable of ventilating to the ceiling, and eave soffit anchoring devices 40 positioned between the spacer 30 and eave soffit 10 for bearing the eave soffit 10. The eave soffit anchoring devices 40 are fixed to the opposite building skeleton 20 side of the spacer 30 and, at the same time, are equipped with a ceiling joist section 50 for bearing a ceiling joist 15 and an eave soffit taking in section 60 for taking in the end of the eave soffit 10 fixed to the lower surface of the ceiling joist bearing section 50.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an eaves ceiling ventilation structure capable of ventilating the backside of an eaves from between an eaves ceiling and a building frame.

[0002]

Prior art In describing the prior art of the present invention, the applicant of the present invention previously used the prior art search (Patris) of the Japan Patent Information Organization (JAPIO) to search for the following by using the following retrieval formula:
A survey of patent applications and utility model registration applications after five years was conducted, and as a result, six patent applications and 100 utility model registration applications were extracted.

Search formula: E04B5 / 60F + (eave + eave + eave) * (disaster prevention + fire + fire) Based on the results of the above-mentioned investigation, the present applicant has conducted intensive studies on the prior art, and as a related technology, Technology, JP-A-7-42299 was extracted. This Japanese Patent Application Laid-Open No. 7-42
No. 299 relates to a ceiling ventilation structure, and as described in the claims, "A ventilation air passage extending between the ceiling and a ceiling plate supporting bracket for supporting a side edge of a ceiling plate and the wall. And a non-combustible volume expansion material that expands by heat is built in the ventilation air passage. "

A more detailed description will be given with reference to FIGS. 7 and 8. FIG. 7 is a vertical sectional view showing the eaves ventilation structure disclosed in JP-A-7-42299. FIG. 8 is a perspective view showing an eaves ventilation structure disclosed in Japanese Patent Application Laid-Open No. 7-42299. In this ceiling ventilation structure, a discontinuous spacer 4 is provided between a ceiling support 1 supporting a side edge of a non-combustible ceiling panel 2 and a non-combustible wall (siding material) 5 as an outer wall of a building frame 6. The ventilation passage 7 shown in FIG.
And a non-combustible volume expansion material 3 is built in the back surface facing the ventilation passage 7 side of the ceiling support fitting 1. Here, the incombustible volume expansion material 3 is Austria Chemie
"Intzmex" manufactured by Linz, and JP-B 63-132968
(Title of the invention; refractory composition), Japanese Patent Publication No. Hei 3-235 (Title of the invention: fire-resistant garment mat), and the like.
It has the property of expanding about 10 times when the temperature in the vicinity is 150 to 170 degrees.

According to this, when a fire occurs and the temperature rises, and hot air of about 150 ° C. or more starts to enter the ceiling from the ventilation passage 7, the incombustible volume expansion material 3 expands and the ventilation passage is expanded. 7 can be blocked to prevent hot air from entering from the ventilation passage 7 into the ceiling. One of the non-combustible ceiling panels 2 is fixed to the lower part of the roof by nailing, and the end on the building frame side is held by being inserted into the ceiling support fitting 1.

[0006]

However, in the conventional eaves ventilation structure described above, since the eaves ceiling is held at both ends of the eaves ceiling on the building skeleton side and on the opposite side of the building skeleton side, the weight of the eaves ceiling is large. Then, the central part of the eaves ceiling is deformed in a U shape downward, and the end of the eaves ceiling on the building frame side shifts,
It is easy to come off. Therefore, there is a first problem that the material of the eave ceiling is limited to a material that is difficult to deform due to a relationship between its own weight and deformation strength.

[0007] Further, the second problem that the eaves ceiling, in which the eaves ceiling protrudes from the building skeleton toward the outside of the building, becomes large and the weight of the eaves increases, and the eaves are easily deformed. There was a point. In addition, in order to solve the first and second problems, when a field edge immediately above the eaves ceiling is fixed to a building frame, and the eaves ceiling is fixed to the field edge with nails or the like, the building frame is not fixed. Due to the presence of the ridges fixed along the lateral direction, the passage for ventilation with the back of the eaves was blocked, making it difficult to obtain a good ventilation passage. On the other hand, if the distance between the eave ceiling and the ridge is widened to obtain a good ventilation passage, there is a third problem that it becomes difficult to fix the eave ceiling to the ridge.

The invention according to claim 1 has been made in view of the first, second, and third problems of the above-described conventional technology. The objective is to provide an eaves ceiling ventilation structure that is not easily deformed even if the weight of the eaves ceiling increases due to the eaves ceiling material and eaves dimensions, without impairing the function of being able to provide ventilation.

[0009] In addition to the above, the invention according to claim 2 suppresses the intrusion of hot air from the ventilation path through the back of the eaves into the back of the eaves even if the temperature rises due to the occurrence of a fire. It is intended to provide an eaves ventilation structure that can delay the eaves. In addition, the invention according to claim 3 aims to provide an eaves ventilation structure capable of suppressing invasion of small animals and the like from the eaves ventilation path toward the eaves back.

[0010] In addition, the invention according to claim 4 aims to provide an eaves ventilation structure which can ventilate the space on the back side of the outer wall formed by the gap between the outer wall finishing material and the building frame. is there.

[0011]

SUMMARY OF THE INVENTION The present invention is to achieve the above object. The invention according to claim 1 is
An eaves ceiling ventilation structure that can be ventilated from between the eaves ceiling (10) and the building frame (20). Spacers (30) fixed to the building frame (20) on the side where 10) protrudes, and eave ceilings
An eaves fixing device (40) located between the spacer (30) and the eaves ceiling (10) to support the (10),
(40) is a field edge support portion (50) fixed to the spacer (30) side opposite to the building skeleton (20) and supporting the field edge (15),
An eaves swallowing portion (60) fixed to the lower surface of the field edge support portion (50) and swallowing an end of the eaves ceiling (10).

Here, the "eave ceiling (10)" is intended to include not only the eave ceiling protruding toward the outside of the building frame (20) but also the indoor ceiling as shown in the embodiment. It is.
According to the present invention, the spacer (30) is sandwiched between the eaves fixing device (40) and the building frame (20). In other words,
A spacer (30) is provided between the ridge supporting portion (50) supporting the (15) and the eaves swallowing portion (60) that swallows the end of the eave ceiling (10) and the building frame (20). The gap is formed only by the thickness of. By this gap, a back eave ventilation path (70) capable of ventilating the back of the eave can be formed. With this, the building frame
Even if a ridge (15) is formed along (20), the presence of the ridge (15) does not obstruct the eaves ventilation path (70) and improves ventilation in the eaves be able to.

Further, the eaves fixing device (40) is provided with a ridge support portion (50).
Because the eaves swallowing part (60) is formed on the lower surface of
The eaves ceiling (10) can be arranged directly under (15). For this reason, the eaves ceiling (10) is not only placed at both ends of the building frame (20) side end and the anti-building frame (20) side end, but also in the middle of the anti-building frame (20) side. Can be easily fixed. By fixing only the both ends of the eaves ceiling (10), even if the material of the eaves ceiling (10) is easily deformed due to its own weight and deformation strength, it is fixed so that it does not deform along the edge (15) can do. In addition, if only the ends of the eaves ceiling (10) are fixed, the eaves ceiling (10) made of a material that easily deforms into a U-shape due to its own weight as the eaves dimensions increase, along the edge (15) It can be easily fixed so as not to be deformed.
Moreover, as described above, the edge (15) along the building frame (20)
Due to the presence of the eaves, the eaves ventilation path (70), which serves as a passage for ventilation with the eaves, is not obstructed, and can be easily fixed while maintaining a good ventilation function.

The second aspect of the present invention is the first aspect of the present invention.
In addition to the features described, the eaves ventilation structure expands without burning by the heat when it is heated, and expands the eaves material (80) that blocks the air flow in the eaves ventilation path (70). Route (7
0). Here, "expansion material
“(80)” is a conventional material having the function of “expanding without burning due to heat and blocking the flow of air in the eaves ventilation path (70)”.

According to the present invention, the inflating material (80) is arranged in the middle of the eaves ventilation path (70). The inflatable material (80) is disposed in the middle of the eaves ventilation path (70) without blocking the ventilation with the eaves under normal use conditions. ) Is heated, the expansion material (80) expands without burning due to the heat, and blocks the flow of air in the eaves ventilation path (70). This can delay the fire from reaching the eaves back.

The third aspect of the present invention is the first aspect of the present invention.
Or, in addition to the features described in claim 2, the eaves ventilation structure,
It is characterized by comprising a mesh-like wire mesh (71) for closing the inside of the eaves ventilation path (70). In the present invention, a mesh-like wire mesh (71) for closing the inside of the eaves ventilation path (70) is formed,
Small animals and insects can be prevented from entering the back of the eaves without obstructing the air circulation.

According to a fourth aspect of the present invention, in addition to the features of the first, second, or third aspect, the eaves back ventilation path (70) includes an outer wall finishing material (73) and a building frame (73). 20), and is communicated with a space (72) on the back surface side of the outer wall which is formed by a gap between the outer wall and the space (72). According to the present invention, the eaves ventilation path (70) also communicates with the outer wall back side space (72) consisting of a gap between the outer wall finishing material (73) and the building frame (20). Not only ventilation but also ventilation of the outer wall back side space (72) between the outer wall finishing material (73) and the building frame (20) can be performed. Thereby, the divergence of water from the surface of the building skeleton (20) is promoted, and the influence of the water on the building skeleton (20) can be suppressed.

[0018]

Embodiments of the present invention will be described below in more detail with reference to the drawings. 1 to 6 show an embodiment of the present invention. FIG. 1 is a perspective view of an eaves ventilation structure, FIG. 2 is a side view of a spacer and an eaves fixing device of the eaves ventilation structure, and FIG. Fig. 4 is an assembled perspective view of the eaves ventilation structure, Fig. 4 is a front view of the eaves ventilation structure spacer and eaves fixture, Fig. 5 is a plan view of the eaves ventilation structure spacer and eaves fixture, and Fig. 6 is eaves. The longitudinal cross-sectional view of a ceiling ventilation structure is shown respectively.

First, the configuration of the present embodiment will be described. The eaves ventilation structure according to the present embodiment allows ventilation of the back of the eaves from between the eaves ceiling 10 and the building frame 20. The eaves-ventilated structure is a building frame 20 on the side where the eaves ceiling 10 protrudes.
Spacer 30 fixed to the space, spacer 30 and eaves ceiling
An eaves fixing device 40 located between 10 is provided. The spacer 30 is formed in order to form an eaves ventilation path 70 composed of a path that can be ventilated with the eaves, and the eaves ceiling fixture 40 includes an eaves ceiling 10 and an eaves ceiling. It is formed to support 10.

Specifically, the spacers 30 have a U-shaped cross section and are arranged at predetermined horizontal intervals on the surface of the building frame 20 on which the eaves ceiling 10 is installed.
Although not particularly shown, it is fixed to the building frame 20 using nails. The spacer 30 is sandwiched between the eaves fixing fixture 40 and the building frame 20, thereby forming an eaves ventilation path 70 which is a path capable of ventilation with the eaves. Further, a triangular cut portion 31 cut into a triangular shape is formed on the spacer 30 on the side of the building frame 20. The triangular cut portion 31 is set so that the lower end surface of the ridge 15 coincides with the center position thereof, and is formed to clarify the mounting position of the ridge 15.

The eaves fixing device 40 is fixed to the spacer 30 on the side opposite to the building frame 20 and also supports a ridge 15 and a ridge support 50, and is fixed to the lower surface of the ridge support 50. An eaves swallowing part 60 that swallows the end of the eaves ceiling 10, and a mesh-shaped wire net 71 of a longitudinal cross section L-shaped that is located below the eaves swallowing part 60 and blocks the inside of the eaves back ventilation path 70, This wire mesh 71
And an inflating member 80 that is placed on the eaves and expands without being burned by the heat when heated, thereby blocking the flow of air in the eaves ventilation path 70.

The edge supporting portion 50 is obtained by bending a strip-shaped member at a right angle, and has an L-shaped vertical cross section. The lower part of the ridge support 50 protrudes in the same lateral direction as the direction in which the eave ceiling 10 protrudes outward, and the upper part of the ridge support 50 is vertically erected and the anti-building frame of the spacer 30 is removed. It is fixed by nails along the surface on the 20 side. In the middle of the lower part of the ridge supporting portion 50, an engaging piece having a flat U-shape in its entire shape is formed in order to engage with the eaves swallowing portion 60.
51 are formed. The engagement piece 51 is formed by being cut in a U-shape in the middle of the lower part of the ridge support 50 and being pushed downward. The engagement piece 51 forms a step that can be engaged by sandwiching the eaves cup part 60 with the lower surface of the main body of the field edge support part 50. As described above, the spacer 30 and the ridge support 50 are attached to the eaves ceiling 10 of the building frame 20.
Are arranged at predetermined intervals in the lateral direction of the surface on which are formed.

The eaves swallowing portion 60 is a long material having a substantially U-shaped vertical cross section and extending in the horizontal direction along the surface of the building frame 20. By inserting the upper end of the eaves swallowing section 60 between the engagement piece 51 of the field support section 50 and the main body of the field support section 50, the eaves swallow section 60 is formed at several locations in the longitudinal direction of the eaves swallow section 60. It is fixed to the edge support 50. Since the eaves swallowing portion 60 is to be held by being inserted onto the engaging piece 51 of the field edge supporting portion 50, the eaves swallowing portion 60 and the field edge supporting portion 50 are located side by side with each other. It is formed so as to be slidable in the direction. The end of the eave ceiling 10 on the side of the building frame 20 is inserted into the U-shaped interior of the eaves swallowing part 60 so that the end of the eave ceiling 10 can be supported. Have been.

The wire mesh 71 is fixed to the lower part of the eaves swallowing part 60 and is set at a position to block the eaves ventilation path 70. The size of the mesh of the wire mesh 71 is set to a size that does not hinder the flow of air inside the eaves ventilation path 70, but suppresses the invasion of small animals and insects. Have been. The expansion member 80 has a thin plate shape and is fixed to the upper surface of a portion of the L-shaped wire net 71 projecting in the lateral direction. The expansion material 80 is made of a conventional material having a function of expanding without burning by heat and blocking the flow of air in the eaves ventilation path 70. In other words, when a fire occurs and the temperature rises and hot air of about 150 degrees or more begins to enter the eaves back from the eaves ventilation path 70, the volume expands without burning itself, and the eaves ventilation path 70 It can block and prevent hot air from entering the back of the eaves from the back eaves ventilation path 70.

Then, the building frame 20 below the spacer 30
A wooden rim 74 is fixed in the lateral direction to the surface of. On the side of the rim 74 opposite the building frame 20, an outer wall finishing material 73 is provided.
75 that has an L-shaped vertical cross section to cut through the upper end of
Has been fixed. The upper end of the outer wall finishing material 73 is inserted into the parting material 75 from below. The outer wall back side space 72 is formed between the outer wall finishing material 73 and the building frame 20 by sandwiching the body rim 74 therebetween. And
The eaves back ventilation path 70 is formed so as to communicate with the outer wall back side space 72. That is, the eaves back ventilation path 70 is formed upward from the space between the eaves ceiling 10 and the outer wall finishing material 73, but downward from the space between the eaves ceiling 10 and the outer wall finishing material 73. A space 72 is formed, and both are formed to communicate with each other.

The body edge 74 is not a long member that is continuous in the horizontal direction. Although not shown, a short member that is interrupted in the middle of the length in the horizontal direction is spaced apart in the longitudinal direction. It is formed by arranging at predetermined intervals. Thereby, the outer wall back side space 72 surrounded by the body edge 74 of the short member does not become a sealed space, but communicates both in the horizontal direction and the vertical direction, and the ventilation in the outer wall back side space 72 is good. It is something that can be.

In order to improve the ventilation of the space 72 on the back side of the outer wall, as shown by the two-dot chain line in FIG. Waist
76 may be arranged and fixed. The vertically arranged waist rim 76 can smoothly move air in the vertical direction of the outer wall backside space 72, and can improve the ventilation of the outer wall backside space 72. It is formed in.

Next, the operation and effect of the above embodiment will be described. According to the present embodiment, eaves fixture
Spacer 30 is interposed between 40 and building frame 20. That is, a gap is formed between the ridge support portion 50 that supports the ridge 15 and the eaves swallowing portion 60 that swallows the end of the eave ceiling 10 and the building frame 20 by the thickness of the spacer 30. You. With this gap, the backside ventilation path 70 capable of ventilation with the backside of the house can be formed. Thus, even if the ridge 15 is formed along the building frame 20, the presence of the ridge 15 does not obstruct the eaves ventilation path 70, and the eaves ventilation can be improved. .

Further, since the eaves fixing device 40 has the eaves swallowing portion 60 formed on the lower surface of the bezel supporting portion 50, the eaves ceiling 10 can be arranged immediately below the bezel 15. For this reason, the eaves ceiling 10 can be easily formed not only at both ends of the end of the building frame 20 side and the end of the anti-building frame 20 side, but also easily on the edge 15 while the eaves ceiling 10 is protruding outside. Can be fixed.
As a result, when only the both ends of the eave ceiling 10 on the building skeleton 20 side and the anti-building skeleton 20 side are fixed, even if the material of the eave ceiling 10 is easily deformed due to the relationship between its own weight and the deformation strength, along the edge 15 It can be fixed to the ridge 15 near its center so as not to be deformed. Also, if only the both ends of the eaves ceiling 10 are fixed,
Even if the eaves ceiling 10 is made of a material that is easily deformed into a U-shape due to its own weight due to its large eaves dimension, it can be easily fixed so as not to be deformed along the ridge 15. Moreover, as described above, the presence of the ridge 15 along the building frame 20 does not block the eaves ventilation path 70, which is a passage for ventilation with the eaves, while maintaining a good ventilation function. Can be easily fixed.

The eaves swallowing part 60 and the ridge support part 50 can be combined with each other by the engagement piece 51 so that they can slide. For this reason, when fixing the spacer 30 and the eaves fixture 40 to the building frame 20, the spacer 30 and the ridge support 50 are fixed in advance, and the ridge support 50 is fixed.
The mounting work can be performed in a state where the eaves swallowing section 60 is inserted into the 50. Thereby, the spacer 30 and the ridge support 50 are slid to the predetermined position along the eaves swallowing part 60 according to the situation of the surface side of the beams and columns of the building frame 20 and the convenience of the construction work, and Can be set, and the construction work can be facilitated.

According to the present embodiment, the expansion material 80
Is located in the middle of the eaves ventilation path 70. This expansion material
80 is placed in the middle of the eaves ventilation path 70 without blocking the ventilation with the eaves under normal use conditions,
If the eaves ventilation path 70 is heated by fire, etc.,
The expansion material 80 expands without burning due to the heat, and interrupts the flow of air in the eaves ventilation path 70. This can delay the fire from reaching the eaves back.

Further, the eaves ventilation path 70 of this eaves ventilation structure
In the middle of the eaves, a mesh-like wire net 71 that blocks the inside of the eaves ventilation path 70 is formed, so that small animals and insects etc. can be suppressed from entering the eaves without blocking the air flow. it can. Further, since the eaves back ventilation path 70 communicates with the outer wall back side space 72 which is a gap between the outer wall finishing material 73 and the building frame 20, not only the eaves back ventilation but also the outer wall finishing material
The space 72 on the back side of the outer wall between the building 73 and the building frame 20 can be ventilated. Thereby, the divergence of moisture from the surface of the building frame 20 is promoted, and the influence of the moisture on the building frame 20 can be suppressed.

[0033]

Since the present invention is configured as described above, it has the following effects. Claim 1
According to the described invention, the eaves ceiling ventilation structure is provided that does not easily deform even if the weight of the eaves ceiling becomes large due to the eaves ceiling material and eaves dimensions without impairing the function of being able to ventilate the eaves behind. can do.

According to the second aspect of the present invention, even if a fire occurs and the temperature rises, it is possible to prevent the hot air from entering the back of the eaves from the ventilation path of the back of the eaves and to delay the fire from flowing to the back of the eaves. An eaves ventilation structure can be provided. According to the third aspect of the present invention, it is possible to provide an eaves ventilation structure capable of suppressing invasion of small animals and the like from the eaves ventilation path toward the eaves back.

According to the fourth aspect of the present invention, it is possible to provide an eaves ventilation structure capable of ventilating the space on the back side of the outer wall formed by the gap between the outer wall finishing material and the building frame.

[Brief description of the drawings]

FIG. 1 is an embodiment of the present invention, and is a perspective view showing an eaves ventilation structure.

FIG. 2 is an embodiment of the present invention and is a side view showing a spacer and an eaves fixing device of an eaves ventilation structure.

FIG. 3 is an assembled perspective view showing an eaves ventilation structure according to the embodiment of the present invention.

FIG. 4 is an embodiment of the present invention and is a front view showing a spacer having an eaves ventilation structure and an eaves fixing device.

FIG. 5 is an embodiment of the present invention, and is a plan view showing a spacer having an eaves ventilation structure and an eaves fixing device.

FIG. 6 is an embodiment of the present invention and is a longitudinal sectional view showing an eaves ventilation structure.

FIG. 7 is a vertical sectional view showing a conventional eaves ventilation structure disclosed in JP-A-7-42299.

FIG. 8 is a perspective view showing a conventional eaves sky ventilation structure disclosed in Japanese Patent Application Laid-Open No. 7-42299.

[Description of Signs] 1 Ceiling support bracket 2 Non-combustible ceiling panel 3 Non-combustible volume expansion material 4 Spacer 5 Non-combustible wall 6 Building frame 7 Ventilation passage 10 eaves ceiling 15 Field edge 20 Building frame 30 Spacer 31 Triangular cutout 40 Eave sky fixing device 50 Field edge support part 51 Engagement piece 60 Eaves swallowing part 70 eave ventilation path 71 Wire mesh 72 Outer wall back side space 73 Exterior wall finishing material 74 Body edge 75 Parting material 76 Body edge 80 Inflatable material

Claims (4)

[Claims] 1. An eaves ceiling ventilation structure capable of ventilating between an eaves ceiling and a building frame, wherein the eaves ceiling protrudes to form a back eaves ventilation path consisting of a ventilable path with the back of the eaves. It has a spacer fixed to the building frame, and an eaves fixing device located between the spacer and the eaves ceiling to support the eaves ceiling, and the eaves fixing device is fixed to the non-building frame side of the spacer. An eaves-ventilated structure, comprising: a field-edge support for supporting the field-edge, and an eave-top swallowing part fixed to the lower surface of the field-edge support and swallowing the edge of the eave-ceiling. 2. The eaves ceiling ventilation structure is provided with an inflating material in the middle of the eaves ventilation path that expands without being burned by the heat when heated and blocks the flow of air in the eaves ventilation path. The eaves ventilation structure according to claim 1, characterized in that: 3. The eaves ceiling ventilation structure includes a mesh-shaped wire mesh that blocks the inside of the eaves ventilation path.
Or the eaves ventilation structure according to claim 2. 4. The eaves back ventilation path communicates with a space on the back side of the outer wall, which is a gap between the outer wall finishing material and the building frame. Eaves ventilation structure.