JPH084149A - Fireproof partition wall of attic space or eaves space - Google Patents

Abstract

PURPOSE:To facilitate the construction and improve the quality, by forming a fireproof wall provided with a slope along rafters of a roof, as a unit with a galvanized steel plate and sticking glasswool at the inside and fitting it so as to straddle the rafter. CONSTITUTION:A fireproof partition wall 21 having a slope fitting part 22 is formed by a galvanized steel plate as a unit and glasswool 24 is stuck to the inside of the wall plate 23. The wall is attached so as to straddle the rafters 12a and fixed by nails at nail holes 22a. In the case of an attic space also, a fireproof partition wall is fitted in the same manner with the eaves space. The fireproof partition wall is lightened as much as possible so as to easily fix it even in a narrow space. When the fireproofing performance can be guaranteed, the wall plate 23 may be one-sided. In this way, the workability can be increased and the quality of fireproof wall can be improved.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention mainly relates to a fire barrier for partitioning a back of a small house or a back of an eaves such as a unit house.

[0002]

2. Description of the Related Art The main causes of the spread of fire are the ignition of the outer wall by flames and radiant heat, the spread of fire due to the appearance of the eaves back, and the invasion of jumps from the roof.

In order to prevent such a fire due to the spread of fire, in the recent unit houses, the outer wall has a multiple structure composed of hard wood chip cement board and heat insulating material, and the eaves back is made of hard wood chip cement board and PVC steel sheet (non-combustible material). ) And
Countermeasures are often taken in parallel, such as stacking non-combustible roof tiles on roofs and using fireproof shutters and wire-inserted windows.

It can be said that the unit house thus considered is protected by fireproof armor. Further, there is also a unit house in which the inside of the eaves and the inside of the hut are divided into fireproof areas by a fireproof wall as disclosed in, for example, JP-A-2-272132. According to this, even if a flame intrudes into the back of the eaves, it is possible to prevent the spread of fire to a minimum within the partitioned portion, and to further prevent fire.

[0005]

However, when arranging the fire barrier as described above, the operator keeps the support fitting on the fire barrier while maintaining the state of being aligned with the predetermined mounting position. It had to be installed, and the work space was small, so there was a problem in workability. As a result, there is a problem that the fire barrier may not be completely fitted.

The present invention was created in consideration of the above circumstances, and an object thereof is to provide a fire barrier that can improve workability and quality in narrow places such as eaves and huts. It is what

[0007]

[Means for Solving the Problems] In order to achieve the above-mentioned object, the fire barrier at the back of the hut or the back of the eaves according to claim 1 is
The roof is provided with a locking portion that is locked to the upper surface of the rafter, and the locking wall hangs down the fire wall partitioning the space behind the roof or the eaves below the rafter in the vertical direction. It is characterized by

Further, in the fire protection wall of the attic or the eaves according to claim 2, the locking portion and the wall plate hanging from the locking portion are integrally formed of a zinc steel plate, It is characterized in that the glass wall is attached to the above to form the boundary wall portion.

[0009]

In the fireproof wall of the attic or the eaves according to claim 1, the barrier wall part which divides the attic space or the eaves space in the vertical direction is locked on the upper surface of the roof rafter. Since it is hung from the locking portion, the mounting work is completed simply by attaching the locking portion to a predetermined position of the rafter. This makes it possible to improve workability and quality in narrow places such as eaves and huts.

Further, since the fireproof wall of the attic or the eaves according to the second aspect is made of zinc steel plate and glass wool, the overall weight is relatively light and easy to handle. This makes it possible to improve workability and quality in narrow places such as eaves and huts.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below based on the embodiments shown in the drawings.

In FIG. 6, reference numeral 1 denotes a unit house, and the unit house 1 has a structure in which a roof unit 3 is installed on a building body unit 2.

As shown in FIG. 5, the roof unit 3 is provided with a purlin 11 horizontally arranged at the top of the roof, and is arranged at predetermined intervals along the roof slope from the purlin 11 to the eaves. A truss structure is assembled from a plurality of rafters 12, a nose purlin material 13, a purlin material 14 arranged at a tip end portion of the rafters 12, and a lumber material (column) not shown in the drawing.

The roof unit 3 having such a frame structure
As shown in FIG. 6, inside the (attic), there is an attic 4 which can be a storage room or a living room, and an eaves 5 located on the eaves side.

Next, an embodiment in which the present invention is used for an eaves back will be described.

FIG. 1 is a perspective view showing a fire barrier according to an embodiment of the present invention, FIG. 2 is an explanatory view showing the structure of the eaves before attaching the fire barrier, and FIG. 3 is attaching the fire barrier. FIG. 4 is an explanatory view showing the structure of the back of the eaves, and FIG. 4 is a sectional view taken along line AA in FIG.

1 to 4, reference numeral 21 is a fire barrier for partitioning the eaves back space 5 located below the rafter 12a along the vertical direction. This fire barrier 21 is a rafter 12a.
Is provided with a locking portion 22 that is locked to the upper surface of the.

The fire barrier 21 has an L-shaped cross section,
Also, two zinc steel plates, whose side surface shape is press-formed to be almost the same as the side surface shape of the eaves space 5, are combined by riveting or welding to form a U-shape that opens downward, and on the upper surface part thereof. Is provided with a plurality of nail holes 22a for attaching and fixing to the rafter 12a along the longitudinal direction.

From the locking portion 22 of the fire barrier 21 to the wall plate 23.
Glass wool 24 is attached to the entire wall plate 23 with an adhesive to form a boundary wall portion. That is, the glass wool 24 is in a state of being suspended from the locking portion 22. In addition, reference numeral 15 in FIG. 1 denotes an eaves panel material located below the eaves back space 5.

The fireproof wall 21 having such a structure is a glass wool 24 which divides the eaves back space 5 into fireproof zones along the vertical direction.
Is hung from the top of the roof to the eaves by the locking portion 22 that is locked to the rafters 12a arranged along the roof slope, so that the worker places the locking portion 22 at a predetermined position on the rafters 12a. The fire-proof section work can be completed simply by mounting the nail by hitting it through the nail hole 22a after covering it from above. As a result, it is possible to improve workability and quality in a narrow space such as the eave space 5 and the hut space 4.

Further, since the fire barrier 21 is made of zinc steel plate and glass wool 24, the weight of the fire barrier 21 as a whole is relatively light and easy to handle. As a result, workability and quality can be further improved in a narrow space such as the eave space 5 and the hut space 4.

The present invention is not limited to the above-described embodiments, but also includes design changes made by those skilled in the art.

For example, in the above embodiment, the eave space 5
Although the fire-prevention section has been shown, it is of course applicable to the attic space 4.

Further, although the glass wool 24 is arranged on the inner peripheral surface of the wall plate 23, it may be arranged on the outer peripheral surface. In addition to glass wool, gypsum board with a thickness of about 10 mm may be used as the boundary wall.
The gypsum board not only does not burn itself, but in the unlikely event of a fire, the crystal water is thermally decomposed to generate fog, which suppresses the spontaneous ignition of wood materials in the vicinity.

If sufficient fireproof performance can be guaranteed, the boundary wall portion may be provided only on one side of the locking portion.

[0026]

As described above, according to the fire-prevention field wall of the attic or the eaves according to the first aspect, the field wall portion which divides the attic space or the eaves space into fire protection along the vertical direction. However, since it is hung from the locking portion which is locked to the upper surface of the rafter of the roof, the installation work is completed only by attaching the locking portion to a predetermined position of the rafter. Thereby, there is an effect that workability and quality can be improved in a narrow place such as a back of an eaves or a back of a hut.

Further, according to the fireproof wall of the hut or the eaves according to the second aspect, since it is made of zinc steel plate and glass wool, the overall weight is relatively light and easy to handle. . Thereby, there is an effect that workability and quality can be improved in a narrow place such as a back of an eaves or a back of a hut.

[Brief description of drawings]

FIG. 1 is a perspective view showing a fire protection wall on the back of a hut or on the back of an eaves according to an embodiment of the present invention.

FIG. 2 is an explanatory diagram showing the structure of the eaves before the fire barrier is attached.

FIG. 3 is an explanatory view showing the structure of the eaves after the fire barrier is attached.

4 is a cross-sectional view taken along the line AA in FIG.

FIG. 5 is a plan view showing a frame of the roof unit.

[Fig. 6] Fig. 6 is a schematic diagram showing the positions of the back and eaves of a unit house.

[Explanation of symbols]

 1 unit house, 2 building main unit, 3 roof unit, 4 attic, 5 eaves space, 11 purlins, 12 and 12a rafters, 13 nose purlin materials, 14 purlin materials, 21 fire barriers, 22 locking parts, 22a Nail holes, 23 wallboard (boundary wall), 24 glass wool (boundary wall).

Claims (2)

[Claims] 1. A field provided with a locking portion for locking the upper surface of a rafter of a roof, and a fire-blocking section of the attic space or the eave space located below the rafter at the locking portion. A fire barrier at the back of a hut or eaves characterized by hanging walls. 2. The interlocking portion and the wall plate hanging from the interlocking portion are integrally formed of a zinc steel plate, and the glass wall is attached to the wall plate to form the boundary wall portion. The fireproof wall of the hut or the eaves according to claim 1.