JP2010031645A - Mounting structure of fascia-board decorative board - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a fascia-board decorative board capable of ventilating an attic while being capable of preventing an intrusion to the attic of a flame, hot air or the like by interrupting a ventilating flue in case of a fire and capable of treating the edges of eaves with an excellent appearance. <P>SOLUTION: The mounting structure of the fascia-board decorative board 1 has a front covering section 11 covering the front of a fascia board 4 and a base covering section 13 covering a base while forming a hollow-shaped ventilating chamber 3 in the lower section of the base covering section 13. In the mounting structure of the fascia-board decorative board 1, an eave-shaped projecting section 12 projected to the front of the eave is formed to the lower section of the covering section 11, and a plurality of vent holes 31 are formed to the front wall surface 131 of the ventilating chamber 3 in the lower section of the projecting section 12. In the mounting structure, an eave-underside path 32 is formed between a rear-end supporting section 15 extended from the upper end of the rear side of the base covering section 13 and the base 42 of the fascia board 4, and a downward opened ventilating flue is formed between the rear side wall of an eave gutter 8 and the front wall surface 131 of the ventilating chamber 3. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a structure for attaching a nose cover plate that can ventilate an attic and can block a ventilation path in a fire to prevent a flame or hot air from entering the attic.

Normally, a nose cover is attached to hide the edge of the rafters protruding from the eaves, but this nose cover may block air flow to the attic.
Therefore, it is practiced to provide ventilation holes on the eaves ceiling or to cover the bottom of the nose cover with a nose cover decorative board provided with ventilation holes. May enter the attic and cause a secondary fire (see, for example, Patent Document 1).

  In order to prevent flames and hot air from entering the attic in the event of a fire, for example, as shown in FIG. 4, a ventilation member 93 consisting of upper and lower members is attached between the rear side of the nose cover 91 and the eaves ceiling 92, A heating foam material 94 is installed in a ventilation path where the ventilation port 93a formed in the upper member and the ventilation hole 93b formed in the lower member communicate with each other, and the heating foam material 94 is expanded by a flame or hot air entering from the ventilation hole 93b in the event of a fire. The thing of the structure which made it cut off and interrupt | blocked a ventilation path | route is known (for example, refer patent document 2).

However, in the configuration shown in FIG. 4, since the heating foam material 94 is installed on the lower surface of the ventilation path, the heating foam material 94 may be submerged or deteriorated by rainwater entering from the vent holes 93b. The problem of not foaming during a fire may occur.
Further, when the ventilation member 93 is attached to the eaves tip, the nose cover 91 appears to be exposed from the front side of the ventilation member 93, so that there is a problem that it looks bad when the eaves tip is looked up from below.

In order to solve this problem, the present applicant drilled a vent hole in the back wall of the ventilator room on the eaves side, raised a shield plate from the bottom wall surface of the ventilator chamber, and installed a shield plate facing the vent hole. We proposed the one with heating foam on top.
However, in this configuration, when air with rainwater enters the ventilation chamber from the vent hole, the heated foam material may be submerged by direct contact with rainwater, and the new problem that the heated foam material does not function in the event of a fire (For example, refer to Patent Document 3).

JP 7-259282 A JP-A-9-203134 JP 2007-204970 A

  In view of such problems of the prior art, the present invention makes it possible to sufficiently ventilate the attic and makes it difficult for rainwater to enter the ventilation path from the ventilation hole, even if rainwater enters the ventilation path. However, there is no risk that the heated foam material will become soaked or deteriorated, and in the event of a fire, the ventilation path will be completely blocked by the expanded heated foam material, and the structure will look good when looking up from the eaves. Let it be an issue.

  In order to solve the above-mentioned problems, the present invention provides a front cover covering a front surface of a nasal cover and a nasal cover having a bottom cover that covers a bottom surface of the nasal cover and forms a hollow ventilation chamber below the front cover. In the structure, a hook-like projecting portion projecting forward of the eaves is provided below the front surface covering portion, and a plurality of air holes are formed in the front wall surface of the ventilation chamber below the projecting portion, and the back surface of the bottom surface covering portion The eaves supported by the eaves hanger attached to the front covering part by providing an eaves back passage between the rear end support part extending obliquely upward from the upper end of the side to the house side and the bottom of the nose cover It has a configuration in which a ventilation path opened downward is formed between the rear side wall of the bag and the front wall surface of the ventilation chamber and below the hook-shaped protrusion.

The ventilating room is divided into two parts in the front and rear by a shielding plate hanging from the back side of the front covering part, forming a ventilation path below the shielding plate, and facing the front surface of the shielding plate. A plurality of vent holes are formed in the inner wall, and a heating foam material is mounted on the back side of the shielding plate.
The nasal cover of the present invention comprises a front covering part that covers the front of the nasal concealment and a bottom covering part that covers the bottom of the nasal concealment and forms a hollow ventilation chamber below the front covering part. An air ventilation path is formed below the shielding plate by dividing the front and rear by a shielding plate that hangs down from the back side.
Since the front wall surface of the ventilation chamber is provided with a plurality of air holes serving as air inlets, the air flowing in from the air holes is blocked by the shielding plate and then passes under the shielding plate. Ventilation is performed by going up to the back side of the shielding plate and rising and then flowing into the attic.

This configuration makes it difficult for rainwater to enter the ventilation chamber, and the heating foam is attached to the back of the shielding plate that bisects the ventilation chamber, so air with rainwater flows into the ventilation chamber. However, the heated foam material is not soaked in water.
Also, when a fire or hot air enters the ventilation path during a fire, the heating foam expands and the ventilation path on the back side of the shielding plate is completely blocked, thereby preventing the entry of flame or hot air into the attic. .
In addition, although a heating foam material can be directly mounted | worn on the back surface of a shielding board, the same effect can be anticipated even if it mounts | wears with the back surface side of the ventilation chamber facing a shielding board.

  In the nose masking decorative board of the present invention, since the air hole serving as the air inlet is provided on the front wall surface of the ventilation chamber, the air hole does not touch the eyes even when looking up from the bottom of the eaves. Combined with the fact that the front and bottom surfaces are integrally covered with a nose cover plate, it is possible to treat the front and bottom surfaces of the eaves with a clean appearance.

  Moreover, the latching piece by which the bottom face of a nose cover is latched can be provided in the upper end part of the shielding board which bisects a ventilation chamber.

  With this configuration, when attaching the nasal cover to the nasal cover, the height and positioning of the nasal cover can be easily adjusted simply by pressing the locking piece against the bottom of the nasal cover. It is possible to easily and reliably perform the positioning operation of the nose cover plate and the driving operation of the support fitting such as a screw or a nail at an unstable high place.

The nasal cover of the present invention provides good ventilation with good ventilation to the attic and prevents the flame and hot air from entering the attic because the expanded foam foam blocks the ventilation path in the event of a fire. it can.
In addition, since the nose cover decorative plate of the present invention integrally covers the front and bottom surfaces of the nose cover, the lower surface of the eaves becomes a clean image, and the eaves can be processed with good appearance.

It is sectional drawing which shows the state which attached the nose cover decorative board of one Embodiment of this invention to the nose cover. It is the II-II arrow directional view of the nose cover decorative board of FIG. It is the II-II arrow line view which shows another aspect of FIG. 2a. It is sectional drawing which shows the state which attached the nose cover decorative board of FIG. 1 to the nose cover, and comprised the eaves of the roof. It is sectional drawing which shows the state which attached the conventional ventilation member to the eaves.

A preferred embodiment of the present invention will be described with reference to the drawings.
FIG. 1 is a cross-sectional view showing a state in which the nasal cover according to one embodiment of the present invention is attached to the nasal cover, FIG. 2a is a view taken along the line II-II of the nasal cover, FIG. 2b is FIG. II-II arrow figure which shows another aspect, FIG. 3 is sectional drawing which shows the state which attached the nose cover decorative board of FIG. 1 to the nose cover, and comprised the eaves of the roof.

The nose cover decorative board 1 of the present invention is formed by bending a coated steel sheet that has been subjected to corrosion resistance such as covering the surface with a vinyl chloride resin, or a long steel sheet having fire resistance such as a zinc steel sheet, by bending with a bender or the like. A hook-like protrusion 12 that protrudes forward of the eaves tip is formed below the front cover 11 that covers the front face 41 of the nose cover 4, and the bottom face 42 of the nose cover 4 is covered below the protrusion 12. In addition, a bottom surface covering portion 13 that forms a hollow ventilation chamber 3 is formed.
Moreover, the upper end of the front surface covering portion 11 is bent at a right angle with respect to the front surface covering portion 11 to the front of the eaves and further bent obliquely downward, and the front end support portion 14 is formed on a folded portion 61 of the drainer 6 described later. It is designed to engage.

As shown in FIG. 1, the front surface 41 of the nose cover 4 is substantially vertical, and the bottom surface 42 is inclined at substantially the same angle as the bottom surface 51 of the rafter 5. It is located above.
The nose cover decorative plate 1 of the present invention is such that the front cover portion 11 covers the front face 41 of the nose cover 4 and is fixed by being driven by a support fitting P such as a screw or a nail, and is bent below the front cover portion 11. The formed bottom covering portion 13 covers the bottom face 42 of the nose cover 4 and forms a hollow ventilation chamber 3. The rear end support extends obliquely upward from the upper end of the back wall surface 133 of the bottom covering portion 13 to the house side. The portion 15 is driven and fixed to the bottom surface 51 of the rafter 5 with a support fitting P such as a screw or a nail.

  In this way, when the rear end support 15 of the nose cover decorative plate 1 is fixed to the bottom surface 51 of the rafter 5, the eaves passage 32 is formed between the rear end support 15 and the bottom 42 of the nose cover 4. The eaves passage 32 communicates with the attic for ventilation.

The ventilation chamber 3 only needs to have a hollow shape surrounded by the front wall surface 131, the bottom wall surface 132, and the back wall surface 133 by bending the lower side of the front covering portion 11, and the ventilation chamber 3 is rectangular and substantially U-shaped. It can be formed into a trapezoidal shape, a curved shape or the like.
The shielding plate 2 is formed from the back surface side of the front covering portion 11 and may be arranged so as to divide the ventilation chamber 3 forward and backward so that the attic can not be seen from the ventilation hole 31. The front and back are in communication.
If the shape of the ventilation chamber 3 is rectangular or substantially U-shaped, the shielding plate 2 may be arranged so that the shielding plate 2 is suspended from the back surface of the front covering portion 11. If the wall surface 131 has a trapezoidal shape inclined toward the ventilation chamber side, the wall surface 131 may be disposed so as to be substantially parallel to the front wall surface 131 from the back surface of the front covering portion 11.

A plurality of air holes 31 serving as air inlets are formed in the front wall surface 131 of the ventilation chamber 3 facing the front surface of the shielding plate 2.
As shown in FIG. 2a, the vent holes 31 are provided in two upper and lower stages, and a number of vertically long vent holes 31 that are long in the vertical direction are arranged at predetermined intervals along the longitudinal direction (horizontal direction) of the front wall surface 31. It is lined up.
Further, as shown in FIG. 2b, the vent hole 31 may be provided in a single stage or in multiple stages.

The lower end of the shielding plate 2 that divides the ventilation chamber 3 into the front and the rear is folded back to form a support portion 22 having a U-shaped cross section. A long strip-like heating foam material 20 is attached to the support portion 22. ing.
As the heating foam material 20, a graphite-based thermal expansion material (manufactured by Intsumex), a butyl-based or epoxy-based thermal expansion material can be preferably used. Any material can be used as long as it has a function of blocking the ventilation passage on the back side of the shielding plate 2.

The upper portion of the shielding plate 2 is fixed to the back side of the front covering portion 11 with a rivet or the like, and a locking piece 21 bent in a shape along the bottom surface 42 of the nose cover 4 is provided at the upper end portion thereof.
The locking piece 21 is positioned when the nose cover decorative plate 1 is fixed to the nose cover 4 and is locked while pressing the front cover 11 of the nose cover decorative plate 1 against the front surface 41 of the nose cover 4. By simply locking the piece 21 to the bottom surface 42 of the nose cover 4, the nose cover decorative plate 1 can be set at a predetermined mounting position.

Next, an operation procedure for attaching the nose masking decorative board 1 to the eaves will be described.
As shown in FIG. 1, first, the front covering portion 11 of the nose cover decorative plate 1 is fixed to the front surface 41 of the nose cover 4.
At this time, the back surface of the front cover portion 11 is applied to the front surface 41 of the nose cover 4, and the front end support portion 14 is engaged with the folded portion 61 of the drainer 6 fixed to the roof path plate. While pressing the locking piece 21 provided on the back side against the bottom surface 42 of the nose cover 4, a support fitting P such as a screw or a nail is driven into the nose cover 4 from the front cover portion 11. If it does in this way, height adjustment and position alignment of the nose masking decorative board 1 can be performed easily, and the attaching operation of the nose masking decorative panel 1 can be performed easily and reliably even in an unstable high place of the scaffold.
Next, a support fitting P such as a screw or a nail is driven into the rear end support portion 15 of the nose cover decorative plate 1 and fixed to the bottom surface 51 of the rafter 5, so that the bottom surface 42 of the nose cover 4 and the rear end support portion 15 are fixed. An eaves passage 32 leading to the attic is formed therebetween.

Therefore, as shown in FIG. 3, eaves hooks 7 are attached to the front surface covering portion 11 of the nose cover decorative plate 1 along the eaves at predetermined intervals, and the eaves hooks 8 are attached to the ear grips of the eaves hooks 7. The ear is locked and supported.
At this time, by fixing the eave ridge cover 81 having a water passage hole to the support member 71 protruding above the eave ridge suspension 7 and covering the opening of the eave ridge 8, fallen leaves and the like enter the eave ridge 8. Can be prevented.
Reference numeral 9 in the figure denotes an eaves ceiling, and by mounting the end of the eaves ceiling 9 on the stepped part 134 formed on the back wall surface 133 of the nose cover decorative plate 1, Construction work is completed.

Thus, the front surface 41 and the bottom surface 42 of the nose cover 4 are integrally covered with the nose cover decorative plate 1, and the eaves 8 is installed on the eaves side of the nose cover decorative plate 1.
That is, the front surface 41 of the nasal cover 4 is covered with the front surface covering portion 11 of the nose cover decorative plate 1, the bottom surface 42 of the nasal cover 4 is covered with the bottom surface covering portion 13, and the ventilation chamber 3 constituting the air ventilation path is formed. The ventilation path which is formed and opens downward is formed between the front wall surface 131 of the ventilation chamber 3 and the rear side wall of the eaves 8.
The ventilation chamber 3 is divided into a front and a rear by a shielding plate 2 that hangs down from the back side of the front covering portion 11, and an air ventilation path is formed below the shielding plate 2, so that the front wall 131 of the ventilation chamber 3 is perforated. The air that has flowed in from the provided vent hole 31 passes under the shielding plate 2, wraps around the back side of the shielding plate 2, and then rises to ventilate the attic.

Normally, the attic is ventilated as described above, or since there is a downwardly ventilating path between the front wall 131 of the ventilation chamber 3 and the rear side wall of the eaves 8, rainwater enters the ventilation chamber. Since the heating foam material 20 is attached to the back side of the shielding plate 2 that bisects the ventilation chamber 3, the heating foam material 20 is submerged even if air with rainwater flows into the ventilation chamber 3. Never become.
In addition, when a flame or hot air enters the ventilation path during a fire, the heated foam material 20 expands and blocks the ventilation path on the back side of the shielding plate 2, thereby completely preventing flames and hot air from entering the attic. can do.

  In addition, the illustrated nose cover decorative board 1 shows an example of an embodiment of the present invention, and can have an appropriate shape according to the structure of the eaves of the house, the shape of the eaves, and the like. Further, the heating foam material 20 can be attached to the back wall surface 133 forming the ventilation chamber 3.

DESCRIPTION OF SYMBOLS 1 Nose cover decorative board, 11 Front surface covering part, 12 Protruding part, 13 Bottom surface covering part, 131 Front wall surface, 132 Bottom wall surface, 133 Back wall surface, 14 Front end support part, 15 Rear end support part, 2 Shielding plate, 20 Heating foam Material, 21 Locking piece, 22 Support part, 3 Ventilation chamber, 31 Vent hole, 4 Nasal concealment, 41 Front face, 42 Bottom face, 5 Rafters, 51 Bottom face, 6 Drainer, 61 Folding part, 7 Eaves hanging equipment, 71 Support Material, 8 eaves, 81 eaves cover, 9 ceilings, P support bracket

Claims (1)

A nose having a front cover (11) covering the front of the nose cover (4) and a bottom cover (13) covering the bottom of the nose cover (4) and forming a hollow ventilation chamber (3) below it. In the mounting structure of the hidden decorative board (1),
A hook-like protrusion (12) protruding forward of the eaves is provided below the front covering part (11), and a plurality of passages are formed in the front wall surface (131) of the ventilation chamber (3) below the protrusion (12). A rear end support part (15) and a bottom face (42) of the nose cover (4) which form pores (31) and extend obliquely upward from the upper end on the back side of the bottom face covering part (13) to the house side, By providing an eaves passage (32) between
Between the rear side wall of the eaves cage (8) supported by the eaves rod suspension (7) attached to the front surface covering part (11) and the front wall surface (131) of the ventilation chamber (3), the cage A mounting structure for a nose cover plate, characterized in that it has a configuration in which a ventilation path that opens downward is formed on the lower side of the protruding portion (12).

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