JP4851662B2 - Eaves fire protection structure - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to eaves ceiling fire protection structure for closing the vent of the eaves in a fire.
[0002]
[Background]
Buildings such as houses and the attic space in the roof need to be ventilated, and this requirement is addressed by providing ventilation openings in the eaves. At the same time, the building needs to have fireproof performance, and a structure is required that uses a fireproof damper member to appropriately close the ventilation section in the event of a fire.
Conventionally, a ventilation air passage is formed between a ceiling plate and a ceiling plate support bracket having a U-shaped cross-section, and a fireproof damper member in which a graphite-based non-combustible volume expansion material that thermally expands is disposed in the passage (Japanese Patent Laid-Open No. Hei. 6-73828).
[0003]
In addition, an eaves-fired ventilator with a U-shaped cross-section is inserted on the eave heaven material side at the joint position of the eaves material made of non-combustible material and eave heaven material made of non-combustible material. In addition, there is a fireproof damper member (Japanese Patent Laid-Open No. 11-241434) in which a graphite-based high-temperature expansion body having fire resistance is arranged.
In these conventional examples, in the event of a fire, a graphite-based foam material or a high-temperature expansion body is expanded to shield the ventilation portion.
[0004]
[Problems to be solved by the invention]
However, Conventional Example 1 and Conventional Example 2 have a structure that engages with an end portion of the eaves top plate, and a high-temperature expansion body is fixed to the surface of a dedicated bent metal fitting or the like as a base material.
Therefore, there is a problem that the shape and structure of the base material are complicated, and the types of parts are increased, so that mass production merit cannot be obtained. In addition, the base material has a complicated folding structure, and there is a problem that it is difficult to securely fix the foam material or the expansion body in the back of the bent portion.
[0005]
An object of the present invention is to provide a eaves ceiling fire structure that can be attached to effectively prevent the spread of fire to the eaves interior, and easily.
[0006]
[Means for Solving the Problems]
Therefore, the present invention intends to achieve the object by fixing the high-temperature expansion body on the surface of the base material at a position facing the ventilation portion of the eaves end member.
Specifically, the eaves fire prevention structure 1 of the present invention will be described with reference to the attached drawings. the eaves member 6 having oppositely disposed vertical wall portion 5C it is, fixed along the longitudinal direction of the base 10及beauty before Kimotozai 10 flat elongate member which is fixed to the outer wall 4 hot A fire-proof damper member 12 having an expansion body 11, and the vertical wall portion 5 </ b> C is formed with a ventilation portion 7 communicating with a space between the vertical wall portion 5 </ b> C and the outer wall 4. Is arranged at a position facing the ventilation portion 7 on the surface of the base material 10 .
Conventionally, when a non-eave building (commonly called eaves zero) is required in the semi-fire prevention area, it has been supported for shed ventilation by providing an external hood. By attaching a fire damper member corresponding to the ventilation portion, it is possible to easily form an eave sky fire prevention structure corresponding to the eave zero building.
[0007]
In the invention of this configuration, in order to obtain a fireproof damper member with a simple configuration of providing a high-temperature expansion body fixed along the longitudinal direction on the surface of a substrate formed of a long member, the number of parts is minimized. Can be. Therefore, even when the fireproof damper member is mass-produced, the number of parts is small, so that the cost can be greatly reduced.
Further, since the size of the fire-proof damper member can be reduced by reducing the number of parts, it can be easily attached even in a narrow space, and the efficiency of the attaching operation is improved.
[0008]
Here, in this invention, the structure by which the rising part 15 of the longitudinal direction is formed in the base material is preferable.
In the invention of this configuration, the strength of the entire fireproof damper member is increased by the rising portion standing at a right angle to the plane of the base material in the longitudinal direction.
[0009]
This rising portion is preferably formed by bending the longitudinal edge of the base material.
With this configuration, a fireproof damper member having a simple structure and high strength can be obtained by a simple process of bending the edge in the longitudinal direction.
[0011]
Here, in the present invention according to the eaves fire prevention structure, the draining member 18 that is disposed between the base material and the outer wall and covers the upper end of the outer wall material 4B that is disposed on the surface of the outer wall passes through only the draining member. It is preferable that the 1st penetration material 31 fixed to the outer wall 4 and the 2nd penetration material 32 which penetrates a base material and a draining member and are fixed to an outer wall are installed.
In the invention of this configuration, the draining member is fixed by the first penetrating member made of a screw, a nail or the like, thereby preventing the misalignment of the draining member, and then the draining member and the second penetrating member made of a screw, a nail, or the like. Fix both substrates. Therefore, the draining member and the substrate can be easily attached.
[0012]
Moreover, in this invention, it is preferable that the upper end of the draining member is engaged with the edge part of the eaves member.
In the invention of this configuration, since the positioning of the upper end of the draining member and the end portion of the eaves member is easily performed, the attaching operation of both is facilitated.
[0013]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to the drawings.
1 and 2 show a first embodiment of the present invention.
In FIG. 1, the whole structure of the eaves fire prevention structure 1 of 1st Embodiment is shown. The eaves fire prevention structure 1 includes an eaves member 6, and the eaves member 6 is spaced from the eaves part 5 extending from the eaves part 3 of the roof 2 to the vicinity of the outer wall 4 below the eaves by a predetermined distance from the outer wall 4. And the ventilation portion 7 arranged opposite to the other.
[0014]
The outer wall 4 includes an outer wall panel body 4A and an outer wall material 4B provided on the surface of the outer wall panel body 4A.
The outer wall member 4B has a structure in which a second outer wall member 42 is attached to the surface of a first outer wall member 41 attached to the entire surface of the panel body 4A. The second outer wall member 42 is located at an upper end position from the first outer wall member 41. Is formed low.
[0015]
The eaves part 5 includes a rain gutter member 5A provided at the eaves edge of the roof 2, and a nose cover member 5B provided between the gutter member 5A and the outer wall 4 and attached to the roof 2. The nose masking member 5 </ b> B has a vertical wall portion 5 </ b> C formed at a portion facing the outer wall 4 and separated from the outer wall 4 by a predetermined dimension. A ventilation portion 7 is formed in the vertical wall portion 5C.
The upper part of the nasal concealment member 5 </ b> B communicates with the back of the roof (not shown) of the roof 2, and the side part communicates with the outside through the ventilation part 7. Therefore, the air is ventilated through a path indicated by a dotted line P in FIG.
[0016]
The first outer wall member 41 of the outer wall 4 is provided with a fire damper member 12, and a fire draining member 18 having fire resistance is provided between the fire damper member 12 and the first outer wall member 41.
The fire damper member 12 includes a base material 10 fixed to the first outer wall member 41 with a nail 21A and a screw 21B, and a high-temperature expansion body 11 fixed at a position facing the ventilation portion 7 on the surface of the base material 10. Have.
[0017]
The detailed structure of the fire damper member 12 is shown in FIG.
In FIG. 2, the base material 10 has fire resistance and is formed of a flat long member, and the long high-temperature expansion body 11 is fixed along the longitudinal direction of the surface of the base material 10. Has been.
The high-temperature expansion body 11 is formed of, for example, a graphite-based material, and expands when the temperature rises during a fire or the like, comes into contact with the opposing vertical wall portion 5C, and blocks the air passage. (See FIG. 1).
[0018]
A rising portion 15 is formed on the base material 10 along its longitudinal direction. The rising portion 15 is preferably formed by bending the lower edge in the longitudinal direction of the substrate 10 at a right angle. The rising portion 15 also has a function as a blindfold so that the high-temperature expansion body 11 cannot be seen from below, and its width dimension is longer than the dimension between the vertical wall portion 5C and the outer wall 4 (see FIG. 1). ).
Screw insertion holes 16 for fixing the fire damper member 12 to the outer wall 4 with nails 21A and screws 21B are formed at a plurality of arbitrary locations on the substrate 10.
[0019]
In FIG. 1, the draining member 18 is attached to a first outer wall member 41 with nails 21 </ b> A and screws 21 </ b> B, and a lower end portion thereof is bent so as to cover an upper end edge of the second outer wall member 42.
The draining member 18 is formed with its upper end folded back, and the upper end of the nasal cover member 5B and the upper end of the substrate 10 are engaged with the folded portion, respectively.
[0020]
Therefore, according to 1st Embodiment, there can exist the following effect.
(1) The fireproof damper member 12 has the simplest and simplest configuration because the high-temperature expansion body 11 is fixed along the longitudinal direction on the surface of the base material 10 formed of a flat long member. be able to. Therefore, the fire-proof damper member 12 can be configured with a minimum number of parts, and even when mass-produced, the number of parts is small, so the cost can be greatly reduced.
(2) By simplifying the structure of the fireproof damper member 12, the size of the fireproof damper member 12 can be reduced at the same time, and even when installed in the back of a complicated folding structure This improves the efficiency of the installation work.
[0021]
(3) Since the rising portion 15 is bent at a right angle in the longitudinal direction of the base material 10, the overall strength of the fireproof damper member 12 can be increased with a simple structure.
(4) Since the rising portion 15 is formed to have a width dimension longer than the dimension between the vertical wall portion 5C and the outer wall 4 so as to cover the high-temperature expansion body 11, the high-temperature expansion body 11 can be hidden. it can.
[0022]
(5) An eaves top fire prevention structure 1 having an eaves part 5 extending from the eaves part 3 to the vicinity of the outer wall 4 under the eaves and a ventilation part 7 arranged to face the outer wall 4 with a predetermined interval; And a fireproof damper member 12 having a high temperature expansion body 11 fixed at a position facing the ventilation portion 7 on the surface of the base material 10 and the base material 10 fixed to the outer wall 4. By attaching the fire-proof damper member 12 corresponding to the ventilation part 7 of 6, the eave sky fire-proof structure corresponding to the eaves zero building can be formed easily.
(6) Since the upper end of the draining member 18 is engaged with the end portion of the eaves member 6, the positioning of the upper end of the draining member 18 and the end portion of the eaves member 6 is easily performed. Becomes easy.
[0023]
Next, a second embodiment of the present invention will be described with reference to FIGS. In the second embodiment, the shape of the base material 10 and the mounting structure are different from those of the first embodiment, and other structures are substantially the same as those of the first embodiment. Note that in the second embodiment, configurations similar to those in the first embodiment are denoted by the same reference symbols as in the first embodiment, and description thereof is omitted or simplified.
In FIG. 3, the fireproof damper member 22 of the second embodiment has a base material 20 attached to the outer wall 4 and a high-temperature expansion body 11 fixed at a position facing the ventilation portion 7 on the surface of the base material 20. .
[0024]
As shown in FIG. 4, the base material 20 is formed of a flat long member, and the high-temperature expansion body 11 is disposed on the surface of the base material 10 along the longitudinal direction. A screw insertion hole 16 is formed in the base material 20 in the same manner as the base material 10 of the first embodiment.
In FIG. 3, the draining member 18 is disposed between the base material 20 and the outer wall 4. The first penetrating member 31 passes through only the draining member 18 and is fixed to the outer wall 4, and the second penetrating member 32 is fixed to the outer wall 4 through both the base material 20 and the draining member 18. In FIG. 3, the first penetrating material 31 is made of a nail and the second penetrating material 32 is made of a screw. However, the first penetrating material 31 may be made of a screw and a screw. May be composed of nails and screws.
[0025]
According to such 2nd Embodiment, in addition to the effect of (1) (2) (5) of 1st Embodiment, the following effect is acquired.
(7) A draining member 18 that is disposed between the base material 20 and the outer wall 4 and covers the upper end of the outer wall member 4B that is disposed on the surface of the outer wall 4, and passes through only the draining member 18 and is fixed to the outer wall 4. Since the first penetrating member 31 and the second penetrating member 32 that passes through the base material 20 and the draining member 18 and is fixed to the outer wall 4 are installed, the draining member 18 is fixed by the first penetrating member 31. Thus, the draining member 18 is prevented from being displaced, and then the draining member 18 and the base material 20 are easily attached to the outer wall 4 by fixing both the draining member 18 and the base material 20 with the second penetrating material 32. Can do.
[0026]
Next, a third embodiment will be described with reference to FIG. The third embodiment is different from the first embodiment in the attachment structure of the base material 10, and the other structures are the same as those in the first embodiment. Note that in the third embodiment, configurations similar to those in the first embodiment are denoted by the same reference symbols as in the first embodiment, and description thereof will be omitted or simplified.
In FIG. 5, the fire damper member 12 of the third embodiment includes the base material 10 and the high-temperature expansion body 11, and a draining member 18 is provided between the base material 10 and the outer wall 4. Yes.
[0027]
The first penetrating member 31 passes through only the draining member 18 and is fixed to the outer wall 4, and the second penetrating member 32 is fixed to the outer wall 4 through both the base material 10 and the draining member 18. In FIG. 5, although both the 1st penetration material 31 and the 2nd penetration material 32 are formed from the nail, these may be comprised from a bis | screw and a screw.
Therefore, in the third embodiment, the effects (1) to (7) of both the first embodiment and the second embodiment can be obtained.
[0028]
Next, a fourth embodiment will be described with reference to FIG. The fourth embodiment is an example in which the fireproof damper member of the present invention is applied to a conventional eaves-top type. Note that in the fourth embodiment, identical symbols are assigned to configurations similar to those in the second embodiment and descriptions thereof are omitted or simplified.
In FIG. 6, the eaves top end member 40A attached to the end of the eaves top member 40 is formed by, for example, aluminum extrusion molding, and each of the first support fittings 41 having a U-shaped cross section is combined with this support fitting 41 And an upper second support fitting 42 to be formed.
[0029]
An end portion of the eaves member 40 attached to the first support fitting 41 is attached to the ceiling member 51 </ b> A by a nail 51. A ventilation portion 7 is provided on the side surface of the support fitting 42, and the outside air is ventilated through a passage S formed by the support fitting 42, the support fitting 41, and the fireproof damper member 12. .
The base material 20 of the fireproof damper 22 is formed of a flat long member, and has the high-temperature expansion body 11 fixed to the surface of the base material 20 along the longitudinal direction. When the temperature rises during a fire or the like, the high-temperature expansion body 11 expands, abuts against the opposing vertical wall 5C, and blocks the air passage.
The fire damper member 22 is formed with screw insertion holes 16 for fixing the fire damper member 22 to the outer wall 4 at a plurality of arbitrary locations above the base material 20. The fire damper member 22 is attached so that the screw 33 passes through the outer wall 4 through the screw insertion hole 16.
[0030]
According to such 4th Embodiment, in addition to the effect in 2nd Embodiment, the following effects are acquired.
(8) By applying the ventilation structure of the present invention to a conventional eaves top plate type, it is possible to form a ceiling ventilation structure for fire prevention that is simple in structure and can be efficiently ventilated.
[0031]
Next, a fifth embodiment will be described with reference to FIG.
The fifth embodiment is different from the second embodiment in the shape of the substrate, and the other structures are the same as those of the second embodiment. Note that in the fifth embodiment, identical symbols are assigned to configurations similar to those in the second embodiment and descriptions thereof are omitted or simplified.
In FIG. 7, the fire damper member 52 of the fifth embodiment includes a long base 50 and a high-temperature expansion body 11 provided on the surface of the base 50 along the longitudinal direction. Yes.
[0032]
The base material 50 is formed of a flat long member, and a reinforcing rib 60 having a semicircular cross section is formed in parallel with the high-temperature expansion body 11. Above the reinforcing rib 60, screw insertion holes 16 for fixing the fire-proof damper member 52 to the outer wall 4 are formed at arbitrary plural locations. The base material 50 having the reinforcing rib 60 is integrally formed by pressing. In the fifth embodiment, the shape of the reinforcing rib 60 is not limited to that shown in FIG. 7, and may be, for example, a rectangular cross section or a triangular cross section.
[0033]
Therefore, in the fifth embodiment, in addition to the effects and advantages of the second embodiment, the following effects can be obtained.
(9) Since the reinforcing rib 60 is formed on the base member 50, the strength of the fireproof damper member 52 can be increased.
[0034]
The present invention is not limited to the embodiment described above, and modifications, improvements, and the like within the scope that can achieve the object of the present invention are included in the present invention.
For example, in the present invention, the relative positional relationship between the base material 10, 20, 50 and the high-temperature expansion body 11 is appropriately determined in the relative positional relationship with the ventilating portions arranged to face each other.
Further, the present invention can be applied to a building constructed by various methods such as a building unit method, a conventional method, and a frame method.
[0035]
【The invention's effect】
As described above, the present invention has the following effects.
According to the invention of the eaves fire prevention structure according to claim 1, an eaves tip member having an eaves part extending from the eaves part to the vicinity of the outer wall under the eaves and a ventilation part disposed to face the outer wall at a predetermined interval; And a fireproof damper member having a high-temperature expansion body fixed at a position facing the ventilation portion on the surface of the base material and a base material fixed to the outer wall, and thus corresponds to the ventilation portion of the eaves member By attaching the fireproof damper member, it is possible to easily form an eaves fire prevention structure corresponding to the eaves zero building.
Moreover, since it is the structure which has the base material formed with the flat elongate member, and the high temperature expansion body fixed to the surface of this base material along the longitudinal direction, it is formed with an elongate member. Since the fire-resistant damper member is configured by a simple configuration in which a high-temperature expansion body fixed along the longitudinal direction is provided on the surface of the base material, the number of components can be minimized. Therefore, even when the fireproof damper member is mass-produced, the number of parts is small, so that the cost can be greatly reduced.
[0036]
According to this invention of Claim 2, since it is the structure by which the rising part of the longitudinal direction was formed in the base material in addition to the structure of Claim 1, the rising part which stood from the plane of the base material in the longitudinal direction As a result, the strength of the entire fireproof damper member is increased.
According to the third aspect of the present invention, in addition to the configuration of the second aspect, since the rising portion is formed by bending the longitudinal side edge of the base material, it is easy to bend the longitudinal side edge. Thus, a fireproof damper member having a simple structure and high strength can be obtained.
[0038]
In this invention of Claim 4 , in addition to the structure of Claim 3 , the draining member which covers the upper end of the outer wall material arrange | positioned between a base material and an outer wall, and is arrange | positioned on the surface of an outer wall, This draining member Since the first penetrating material that penetrates only through and is fixed to the outer wall and the second penetrating material that penetrates through the base material and the draining member and is fixed to the outer wall are installed, from screws, nails, etc. By fixing the draining member with the first penetrating material, the displacement of the draining member is prevented, and then both the draining member and the substrate are fixed with the second penetrating material made of screws, nails or the like. Therefore, the draining member and the substrate can be easily attached.
[0039]
In this invention of Claim 5 , in addition to the structure of Claim 4 , since the upper end of the draining member is the structure engaged with the edge part of the eaves member, the upper end of the draining member and the eaves member Positioning with the end portion is easily performed, and attachment work of both is facilitated.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view of a roof eave roof to which a first embodiment of the present invention is applied.
FIG. 2 is a perspective view of a fireproof damper member to which the first embodiment of the present invention is applied.
FIG. 3 is a cross-sectional view of a roof eave roof to which the second embodiment of the present invention is applied.
FIG. 4 is a perspective view of a fireproof damper member to which a second embodiment of the present invention is applied.
FIG. 5 is a cross-sectional view of a hut roof eave to which a third embodiment of the present invention is applied.
FIG. 6 is a cross-sectional view showing a fire damper member of a fourth embodiment of the present invention attached to a conventional eaves top plate type.
FIG. 7 is a perspective view showing a fire damper member according to a fifth embodiment of the present invention.
[Explanation of symbols]
4 outer wall 4B outer wall material 5 eaves part 6 eaves part member 7 ventilation part 10, 20, 50 base material 11 high temperature expansion body 12, 22, 52 fireproof damper member 15 rising part 16 insertion hole 18 draining member 60 reinforcing rib

Claims (5)

An eaves tip part extending from the eaves part to the vicinity of the outer wall under the eaves, and an eaves part member having a vertical wall part disposed opposite to the outer wall at a predetermined interval;
And a fire damper member having a longitudinal direction fixed along the high temperature expansion of the substrate及beauty before Kimotozai flat elongate member fixed to the outer wall,
The vertical wall portion is formed with a ventilation portion communicating with the space between the vertical wall portion and the outer wall,
The eave sky fire prevention structure , wherein the high-temperature expansion body is disposed at a position facing the ventilation portion on the surface of the base material . In the eaves fire prevention structure according to claim 1,
An eave dome fire prevention structure, wherein a rising portion is formed along the longitudinal direction of the base material. In the eaves fire prevention structure according to claim 2,
The eaves fire prevention structure , wherein the rising portion is formed by bending a longitudinal edge of the base material. In the eaves fire prevention structure according to any one of claims 1 to 3 ,
A draining member disposed between the base material and the outer wall and covering an upper end of the outer wall member disposed on the surface of the outer wall; and a first penetrating member that penetrates only the draining member and is fixed to the outer wall; The eave sky fire prevention structure, wherein a second penetrating material that penetrates the base material and the draining member and is fixed to the outer wall is installed. In the eaves fire prevention structure according to claim 4 ,
The eaves top fire prevention structure, wherein an upper end of the draining member is engaged with an end of the eaves tip member.

Images