JP4908945B2 - Eaves structure - Google Patents

Description

  The present invention relates to a roof eaves structure provided on a building body.

Conventionally, in the case of a building having a long eave, for example, a technique is known in which ventilation holes are provided at the boundary between an eaves ceiling and an outer wall in order to ventilate the back of a hut (for example, see Patent Document 1). . In the case of buildings with long eaves like this, even if it rains and the rainwater is blown up by wind, rainwater will not reach the outer wall due to the long eaves, so rainwater will enter the ventilation holes. Less is.
JP 2005-163490 A

  By the way, in urban areas and the like, the site for building a building is often narrow. For this reason, in the case of a building having a long eaves as in the above-mentioned Patent Document 1, since the eaves part protrudes outward from the outer wall of the building, when trying to build a building in the site, Must fit inside. As a result, the living room will be retreated, and there may be a case where a sufficient building area cannot be obtained. In recent years, there are many requests for reducing the eaves and making the eaves almost absent. .

However, when the eaves are simply shortened, the structure of the ventilation hole as described in Patent Document 1 has a problem that rainwater enters from the ventilation hole if there is a wind-up. On the other hand, if the ventilation hole is narrowed in order to prevent such intrusion of rainwater, the ventilation performance in the back of the hut may be deteriorated.
Therefore, it has been desired to develop a technology that can reliably prevent rainwater from entering even when the eaves are further reduced, and that has excellent ventilation performance in the back of the hut.

  An object of the present invention is to provide an eaves structure that can reliably prevent the intrusion of rainwater, is excellent in shed ventilation, and can be applied to a narrow site in an urban area with almost no eaves coming out. The purpose is to provide.

The invention according to claim 1 is, for example, as shown in FIGS. 1 and 2, in the eaves structure of the roof 2 provided on the building body 1.
The roof 2 has an eaves of approximately the same dimensions as the thickness of the outer wall material 10 attached to the building body 1, and the eaves 2 a is provided at the eaves 2 a, and the upper end of the outer wall 10 is The eaves member 3 covering the eaves 2a by hanging down to the vicinity of the part,
The eaves member 3 includes a ventilation portion 30 that is formed in a hollow shape so as to communicate with the exterior space 2b and communicate with the exterior space 2b by providing the ventilation hole 30a.
The ventilation portion 30 includes a first hollow portion 33 that opens toward the cabin space 2b,
The first hollow portion 33 has a second hollow portion 34 formed integrally with the first hollow portion 33 and positioned below the first hollow portion 33 so as to have a small thickness. Using the difference between the thickness of the portion 33 and the thickness of the second hollow portion 34, a gap 4 is formed between the second hollow portion 34 and the building body 1,
The vent hole 30a is formed in the second hollow portion 34 so as to open toward the gap 4 .
The outer wall member 10 includes a plurality of vertical grooves 10 a that are formed along the vertical direction of the outer wall member 10 and communicate with the gap 4.

According to the invention described in claim 1, the roof 2 has an eaves of approximately the same dimensions as the thickness of the outer wall material 10 attached to the building body 1, so that the eaves are almost out. Can be in no state. Therefore, unlike the conventional case, a sufficient building area can be obtained without retreating the living room, and it becomes possible to cope with a small site in an urban area.
In addition, even in the state where there is almost no eaves in this way, the eaves member 3 attached to the eaves 2a is provided with a vent hole 30a, thereby allowing the ventilation space 30 to communicate between the cabin space 2b and the outside. The vent hole 30a opens toward the gap 4 formed between the eaves member 3 and the building body 1, so that rainwater can be stored in the attic space 2b even when wind blows up. It can be surely prevented from entering the roof, and it is excellent in shed ventilation. In particular, the outer wall member 10 is formed along the vertical direction of the outer wall member 10 and includes a plurality of vertical grooves 10a that communicate with the gap 4. Therefore, air is introduced into the gap 4 through the vertical groove 10a. The air passing through the gap 4 reaches the cabin space 2b through the vent hole 30a. This provides better shed ventilation.

The invention according to claim 2 is an eaves-end structure according to claim 1, for example, as shown in FIG.
The eaves end member 3 includes a draining piece 31 that hangs downward from a lower end portion of the ventilation portion 30.

  According to the invention described in claim 2, since the eaves member 3 includes the draining piece 31 that hangs downward from the lower end portion of the ventilation portion 30, rainwater is transmitted along the draining piece 31. It is possible to positively drop water drops such as rainwater, and more reliably prevent rainwater from entering the cabin space 2b.

The invention according to claim 3 is the eaves structure according to claim 1 or 2, as shown in FIG.
The eaves tip member 3 includes a roof draining portion 32 that is inserted between the roof 2 and a roof gutter 21 provided on the upper surface of the roof 2 and extends toward the rain gutter 22 provided in the eaves 2a. It is characterized by.

  According to the invention described in claim 3, the eaves member 3 is inserted between the roof 2 and the roof covering material 21 provided on the upper surface of the roof 2, and the rain gutter 22 provided on the eaves 2 a. Since the roof draining portion 32 extending toward is provided, rainwater can be actively guided to the rain gutter 22 and rainwater can be more reliably prevented from entering the cabin space 2b.

The invention according to claim 4 is, for example, as shown in FIGS. 1 and 3, in the eaves structure according to any one of claims 1 to 3,
A plurality of roof support members 5 for supporting the roof 2 at a predetermined angle are installed on the building main body 1 at a predetermined interval, and a ventilation path is provided between adjacent roof support members 5. It is characterized by that.

  According to invention of Claim 4, since the roof supporting member 5 is installed in multiple numbers on the said building main body 1, and between the adjacent roof supporting members 5 becomes a ventilation path, the air which flowed in from the said vent hole 30a Can be distributed to every corner of the attic through this ventilation path, which is even better in attic ventilation.

The invention according to claim 5 is the eaves-end structure according to any one of claims 1 to 4, for example, as shown in FIG.
An adjustment member 6 for forming a vertical surface 6a at the tip of the roof 2 is attached to the tip of the roof 2, and the eaves member 3 is abutted and fixed to the vertical surface 6a of the adjustment member 6. It is characterized by that.

According to the invention described in claim 5, the adjustment member 6 for forming the vertical surface 6 a at the tip of the roof 2 is attached to the tip of the roof 2, and the vertical surface 6 a of the adjustment member 6 is attached to the tip of the roof 2. Since the eaves end member 3 is fixed in contact with the eaves end member 3, the eave end member 3 can be provided vertically.
And since the said clearance gap 4 formed between the said eaves edge member 3 and the building main body 1 can be ensured by providing the eaves edge member 3 in this way, air is reliably sent from the said vent hole 30a. It can be allowed to flow in and is even better in shed ventilation.

According to the present invention, since the roof has the eaves of approximately the same dimensions as the thickness of the outer wall material attached to the building body, the eaves can be hardly exposed. Therefore, unlike the conventional case, a sufficient building area can be obtained without retreating the living room, and it becomes possible to cope with a small site in an urban area.
In addition, even in the state where there is almost no eaves in this way, the eaves member attached to the eaves includes a ventilation part that communicates the back space with the outside by providing the ventilation hole, Because it opens toward the gap formed between the eaves member and the building body, it can reliably prevent rainwater from entering the cabin space even when wind blows up Excellent in attic ventilation. In particular, the outer wall material is formed along the vertical direction of the outer wall material and includes a plurality of vertical grooves that communicate with the gap, so that air passes through the vertical groove to the gap, and the air that has passed through the gap passes therethrough. Reach the cabin space through the pores. This provides better shed ventilation.

  Embodiments of an eaves structure according to the present invention will be described below with reference to the drawings. The building in which the eaves structure of the present embodiment is adopted is a unit type building that is built by combining a plurality of building units 1 and roof panels 2 that are produced in advance at a factory, but a conventional shaft construction method. It can also be applied to buildings with a wall method.

The eaves structure of the present embodiment is that of the eaves 2a of the roof 2 provided on the building body 1, as shown in FIGS.
The roof 2 has an eaves of approximately the same dimensions as the thickness of the outer wall material 10 attached to the building body 1, and the eaves 2 a is provided at the eaves 2 a, and the upper end of the outer wall 10 is The eaves member 3 covering the eaves 2a by hanging down to the vicinity of the part,
The eaves member 3 includes a ventilation part 30 that communicates the cabin space 2b and the outside by providing the ventilation hole 30a, and the ventilation hole 30a is formed between the eaves member 3 and the building body 1. It opens towards the gap 4,
The outer wall member 10 includes a plurality of vertical grooves 10 a that are formed along the vertical direction of the outer wall member 10 and communicate with the gap 4.

Here, the building body 1 of the present embodiment is the building unit 1, and the building unit 1 has a framework formed by rigidly joining a plurality of columns and upper and lower beams.
As shown in FIG. 1, a hut panel 12 made of, for example, a channel material, which is the same member as the upper beam 11 is placed on the upper surface of the upper beam 11. The hut panel 12 is formed to have the same size as the planar size of the building unit 1, and a plurality of roof support members 5 that support the roof panel 2 via the panel frame 20 are erected on the upper surface. It has become.

  Further, a square member 13 having a rectangular shape in cross section is attached and fixed to the outer end face of the hut panel 12, and the eaves member 3 can be fixed to the building body 1 through the square member 13. Yes. That is, the eaves end member 3 is fixed to the square member 13.

The panel frame 20 is formed by, for example, a rectangular tube-shaped member and is attached to the roof support member 5 along the inclination of the roof 2. As the rectangular tube-shaped member, as shown in FIG. 3, a rafter member 23 passed from a ridge (not shown) to the eaves 2 a to support the roof 2, and provided at the eaves 2 a orthogonal to the rafter member 23. The eaves member 24 and a purlin member 25 provided in parallel to the eaves member 24 and orthogonal to the rafter member 23 are exemplified.
In addition, a field board 26 is affixed on the panel frame 20, and a roof covering material 21 is provided on the field board 26.

  As shown in FIG. 1, the panel frame 20 is in a state of having an eaves having approximately the same dimensions as the thickness of the outer wall member 10 attached to the building body 1. As a result, there is almost no eaves out, so unlike in the past, a sufficient building area can be obtained without retreating the living room, and it is possible to correspond to a small site in an urban area. Become.

Further, as shown in FIG. 1, the roof support member 5 is placed on the placement panel 51 on the upper surface of the hut panel 12, and is erected on the placement part 51, and is curved at an intermediate portion. In this way, there is provided an abutting portion 52 that abuts on the panel frame 20 by inclining, and a support portion 53 that supports the abutting portion 52 and is erected on the mounting portion 51 described above. Further, the contact portion 52 includes a connection pin 54 that connects the roof support member 5 and the purlin member 25 by being inserted into a hole (not shown) formed in the purlin member 25. .
In addition, the angle of the roof 2 can be changed by adjusting the curve inclination angle of the contact portion 52 in advance.

  As shown in FIG. 3, a plurality of roof support members 5 are installed at predetermined intervals on the hut panel 12, and the adjacent roof support members 5 serve as ventilation paths. Thereby, since the air flowing in from the vent hole 30a can be distributed to every corner of the cabin through this ventilation path, the ventilation in the cabin is excellent.

Moreover, as shown in FIG. 1, the adjustment member 6 for forming the vertical surface 6a in the front-end | tip of this roof 2 is attached to the front-end | tip of the said roof 2, The said eaves edge is attached to the vertical surface 6a of this adjustment member 6 The member 3 is in a fixed state. More specifically, the adjustment member 6 is formed in a substantially triangular shape in cross section, and one surface is a vertical surface 6a, one surface is a surface that contacts the end surface of the eaves beam member 24, and one surface faces downward. It becomes.
In this way, the eaves end member 3 is abutted and fixed to the vertical surface 6 a of the adjustment member 6, so that the eave end member 3 can be provided vertically, and is formed between the eaves end member 3 and the building body 1. In addition, since the gap 4 can be secured, air can surely flow in from the vent hole 30a, which is excellent in shed ventilation.

  The adjustment member 6 has a shape corresponding to the angle of the roof 2. That is, since the angle of the roof 2 can be changed by the curved inclination angle of the contact portion 52 of the roof support member 5, when the vertical surface 6a is formed on the eaves 2a of the roof 2, the shape of the triangle is appropriately changed. It is possible to respond by doing. Accordingly, it is possible to always ensure the gap 4 formed between the eaves member 3 and the building body 1 regardless of the angle of the roof 2.

  Subsequently, as described above, the eaves member 3 includes a ventilation portion 30 that communicates the cabin back space 2b with the outside by providing the ventilation hole 30a, and the ventilation hole 30a is connected to the eaves member 3 and the building body. 1 opens toward the gap 4 formed between the two. Accordingly, even when there is almost no eaves, it is possible to reliably prevent rainwater from entering the cabin space 2b even when wind blows up, and it is excellent in cabin ventilation.

As shown in FIG. 1, the ventilation portion 30 is formed in a hollow shape so as to communicate with the cabin space 2b, and a first hollow portion 33 that opens toward the cabin space 2b, and the first hollow. The second hollow portion 34 is formed continuously in a hollow shape below the portion 33 and has the vent hole 30a.
And this 2nd hollow part 34 is formed so that the thickness may become thinner than the said 1st hollow part 33, The difference of the thickness of these 1st hollow parts 33 and the thickness of the 2nd hollow part 34 The gap 4 is formed by using.
Note that the first hollow portion 33 and the second hollow portion 34 are integrally formed so that the outer surfaces are flush with each other, and the appearance is good.

  In addition, the eaves tip member 3 includes a draining piece 31 that hangs downward from the lower end of the ventilation portion 30. The draining piece 31 is formed integrally with the ventilation portion 30 and has a good appearance.

  And since the eaves-tip member 3 is provided with the drain piece 31 that hangs downward from the lower end portion of the vent portion 30 in this way, water droplets such as rain water are positively transmitted along the drain piece 31. The rainwater can be reliably prevented from entering the cabin space 2b.

Further, the eaves tip member 3 is inserted between the roof 2 and the roof eaves 21 provided on the upper surface of the roof 2 and extends toward the rain gutter 22 provided on the eaves 2a. It has.
The rain gutter 22 is attached and fixed together with the eaves edge member 3 on the vertical surface 6 a of the adjustment member 6, and is located on the extended line of the roof gutter material 21. The roof draining portion 32 is formed integrally with the ventilation portion 30.

  In this way, the eaves edge member 3 is inserted between the roof 2 and the roof eaves 21 provided on the upper surface of the roof 2 and extends toward the rain gutter 22 provided on the eaves 2a. Since the draining portion 32 is provided, rainwater can be actively guided to the rain gutter 22 and rainwater can be reliably prevented from entering the cabin space 2b.

Note that the eaves tip member 3 of the present embodiment is made of steel and is formed in a long shape along the eaves girder member 24, although not shown. Although not shown, a predetermined waterproof treatment is applied between the adjacent eaves members 24 so that the intrusion of rainwater can be surely prevented.
Further, when the eaves member 3 surrounds the entire periphery of the eaves 2a of the roof 2, if the outer wall has an inner portion 14 that is recessed toward the building, a plurality of eaves members 3 may be provided in accordance with the outer wall shape. As shown in FIG. 4, an eaves ceiling material 27 having a plurality of ventilation holes (not shown) is provided at the lower part of the eaves panel 12a provided in the inner part 14 alongside the hut panel 12 for ventilation. You may make it take.
At this time, it is preferable to provide an auxiliary eaves edge member 3a for preventing rainwater from entering the cabin space 2b continuously with the eaves edge member 3.

  On the other hand, as shown in FIGS. 1 and 2, the outer wall member 10 includes a plurality of vertical grooves 10 a that are formed along the vertical direction of the outer wall member 10 and communicate with the gap 4. Moreover, since the design can be improved by forming the plurality of horizontal grooves 10b so as to be orthogonal to the plurality of vertical grooves 10a, the appearance is good and preferable.

By providing the plurality of vertical grooves 10a in this way, air passes through the vertical grooves 10a to the gap 4, and the air that has passed through the gap 4 reaches the cabin space 2b through the vent holes 30a. Better in ventilation.
That is, a plurality of the vertical grooves 10a are formed at equal intervals along the width direction of the outer wall member 10, and therefore, more air blown toward the outer wall is captured and fed into the gap 4. Be able to.

  According to the present embodiment, intrusion of rainwater can be reliably prevented, ventilation in the back of the cabin is excellent, and furthermore, it is possible to cope with a narrow site in an urban area with almost no eaves coming out. .

It is a sectional side view which shows embodiment of the eaves edge structure which concerns on this invention. It is a perspective view which shows an outer wall material. It is a perspective view which shows a panel frame and a roof support member. It is a sectional side view which shows an example of an inner part.

Explanation of symbols

1 Building body (building unit)
2 Roof (roof panel)
2a eaves end 3 eaves end member 4 gap 10 outer wall material 10a longitudinal groove 30 vent

Claims (5)

In the eaves structure of the roof provided on the building body,
The roof has an eaves of approximately the same size as the thickness of the outer wall material attached to the building body, and the eaves are provided at the eaves and hang down to the vicinity of the upper end of the outer wall. Equipped with an eaves member covering the eaves,
The eaves member is provided with a ventilation portion formed in a hollow shape so as to communicate with the back of the hut space while communicating with the outside of the hut space by providing a vent.
The ventilation portion has a first hollow portion that opens toward the cabin space,
A second hollow portion formed integrally with the first hollow portion and positioned below the first hollow portion and having a reduced thickness, and the thickness of the first hollow portion A gap is formed between the second hollow portion and the building body using the difference between the thickness of the second hollow portion and the second hollow portion,
The vent is formed in the second hollow part so as to open toward the gap ,
The eaves end structure is characterized in that the outer wall member includes a plurality of vertical grooves formed along the vertical direction of the outer wall member and leading to the gap. In the eaves structure according to claim 1,
The eaves end structure includes a drainage piece that hangs downward from the lower end of the ventilation part. In the eaves structure according to claim 1 or 2,
The eaves end member is provided with a roof draining portion that is inserted between the roof and a roof gutter provided on the upper surface of the roof and extends toward a rain gutter provided at the eaves end. The eaves structure. In the eaves structure as described in any one of Claims 1-3,
A plurality of roof support members for supporting the roof at a predetermined angle are installed on the building body at a predetermined interval, and a ventilation path is provided between adjacent roof support members. Eaves structure to do. In the eaves structure as described in any one of Claims 1-4,
An eaves tip structure in which an adjustment member for forming a vertical surface at the tip of the roof is attached to the tip of the roof, and the eaves member is fixed to the vertical surface of the adjustment member .

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