JPH0732641Y2 - Fire protection balcony - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to a fire-prevention balcony that is attached to an outer wall of a building such as a house to prevent the spread of fire in the building.

[Prior Art] Generally, a balcony attached to the outer wall of a building such as a house has a floor panel on the second floor or the third floor or more from the building 1 to the outside of the building 1 as shown in FIG. It is provided so as to project on the same plane as 2. In addition, conventionally, a fence 4 for preventing danger is erected upward from the upper peripheral edge of the balcony 3.

As the fence 4, there is a wall fence made of concrete board or wood board, or a handrail fence made up of a plurality of handrail bars set up at a predetermined interval. In view of the above, the latter handrail-type fence is often used as being preferable.

[Problems to be solved by the invention] By the way, when a fire occurs from the first floor of the building 1,
As shown in Fig. 3, the flame breaks through the window on the first floor and rises. If the balcony is not present, the flame easily spreads to the second floor, but since the balcony 3 is provided, the flame is blocked by the balcony 3 and the spread of flame is temporarily delayed. be able to.

However, when the flame becomes stronger, the flame burns the windows and walls on the second floor so as to wrap around the balcony 3 and penetrates into the room on the second floor and spreads.

Here, when the above-mentioned handrail type fence body is used as the fence body 4 of the balcony 3, the flame easily enters the inside of the balcony 3 from between the handrail bars of the handrail type fence body, and the balcony 3 overhangs. Unless the part is very long, you can't prevent the fire.

The present invention has been made in view of the above circumstances,
The aim is to provide a fire-prevention balcony that can prevent the spread of flames to the upper floors in the event of a fire and minimize the spread of fire in the building.

[Means for Solving the Problem] The present invention provides an eaves section provided near the floor on the second floor or the third floor or more of the building so as to project toward the outside of the building, and the eaves section. The front edge portion and both side edge portions of the erecting portion and the side edge portions of the erecting portion are provided with protruding portions vertically projecting downward.
The provision of non-combustible material was taken as a solution.

[Operation] According to the fire-prevention balcony of the present invention, since the projecting portion protruding downward is provided at the peripheral portion of the lower surface of the eaves of the balcony, the window of the building can be opened in the case of a fire. The direction of the flame that breaks through and rises can be obstructed by this overhang, and the flame can be contained in the space between the outer wall surface and this overhang. Further, since the non-combustible material is provided on the back surfaces of the eaves top and the projecting portion, the momentum of the flame can be gradually extinguished by the non-combustible material.

[Embodiment] The present invention will be described below with reference to the drawings showing an embodiment.

1 and 2 show an embodiment of a fire-prevention balcony of the present invention.

In FIG. 1 and FIG. 2, the building 10 as a house is
It is composed of floors 11 and 12 and is divided by a floor panel 13 on the second floor.

Windows 11b and 12b are provided on outer wall surfaces 11a and 12a facing the front side (south side, etc.) of each room on the first floor 11 and the second floor 12.

In the vicinity of the second floor of the outer wall of building 10, the building from this building 10
10 A fire-prevention balcony 15 is provided to extend outside.

Fireproof balcony 15 is the eaves of the balcony.
16 and a projecting portion 19 vertically projecting downward on three sides of a front edge portion and both side edge portions of the lower surface of the eaves ceiling portion 16.

The eaves roof 16 includes a frame body 16a assembled in a rectangular contour and the frame body 16a.
Of the building 10 by attaching one side of the frame 16a to the second floor panel 13 of the building 10 with bolts 21. It is attached so that it is almost flush with the second floor panel 13.

On the upper surface of the eaves roof 16, there are three sides of the front edge and both side edges (three sides other than one side connected to the building 10).
In addition, a substantially U-shaped base portion 17 connecting the three sides is provided extending vertically upward.

On this foundation part 17, a fence 18 is erected for preventing the danger of the fireproof balcony 15 and the like. This fence 18 has a base 17
A plurality of handrail bars 18a, 18a, which are driven and fixed at predetermined intervals, and an upper bar provided in a substantially U-shape so as to connect the upper ends of the handrail bars 18a, 18a. And 18b.

In addition, on the lower surface of the eaves ceiling portion 16, there are three sides of the front edge portion and both side edge portions (three side portions other than one side on the side connected to the building 10), which are substantially U-shaped. An overhanging portion 19 is provided in the character shape so as to vertically project downward. The projecting portion 19 is formed integrally with the base portion 17, and has a structure in which face materials 19b and 19b are attached to both surfaces of a rectangular contour frame body 19a.

An incombustible material 20 is provided on the back surfaces of the eaves roofs 16 and the projecting portions 19 on the three sides. In this embodiment, as the non-combustible material 20, one made by integrally molding highly fireproof concrete into a two-sided opening type substantially box shape is used, and the back surface of the eaves section 16 and the three-sided projecting sections 19 are used. It is fitted in a close contact state so as to cover the back surface of the.

A building 10 having a fireproof balcony 15 of this embodiment.
In that case, for example, when a fire broke out from the room on the first floor 11, a flame first burns the room on the first floor 11 and then on the first floor 11 as shown in FIGS. 1 and 2. It breaks through the outer wall 11a, burns to the outside, and tries to rise. However, since the fire-prevention balcony 15 having the above-described configuration is provided near the second floor of the building 10, the flame is blocked by the overhanging portion 19 of the fire-prevention balcony 15,
It looks like it is enclosed in the space between the outer wall surface 11a of the first floor 11 of the building 10 and the eaves roof 16 and the overhang 19.

In addition, non-combustible material is used on the backsides of the eaves section 16 and the overhang section 19.
Since 20 is provided, the flame gradually burns its momentum with this noncombustible material 20. Therefore, the first floor
The flames that burned up from 11 passed through the fence 18 from the outside of the balcony and entered the balcony 15 and further on the second floor 12
It is possible to prevent a conventional disaster such as the fact that it spreads to each room of the room, and to stop the flame that started on the 1st floor 11 on the 1st floor 11 to exert high fire prevention performance.

Further, in the fire-prevention balcony 15 of the present embodiment, since the fence 18 that is erected at the peripheral edge of the upper surface of the eaves portion 16 is a handrail type fence, it has good air permeability and heat of flame and No smoke will be trapped in the room on the 2nd floor. Therefore, even if a fire breaks out on the first floor 11, there is less pain for people in each room on the second floor 12, and high safety is ensured.

The configuration of the fire-prevention balcony 15 shown in this embodiment, the configuration of the building 10 to which the fire-prevention balcony 15 is attached, and the like are within the scope of the present invention,
Of course, it may be other than the above embodiment.

For example, in the above embodiment, the eaves section 16 and the overhanging section 19
An example was shown in which a non-combustible material 20 formed by molding concrete into a double-sided open box shape was fitted on the entire back surface of, but other than this, it is possible to block the whereabouts of the flame from the lower floor. With the configuration, for example, the eaves roof portion 16 and the entire overhanging portion 19 can be integrally formed from concrete having high fire resistance.

In addition, as the non-combustible material 20, any material other than the concrete described above may be used as long as it has high fireproof performance.

Further, in the above-mentioned embodiment, the example in which the fire-prevention balcony 15 is provided near the second floor of the building 10 is shown, but in the case of a building with three or more floors, all floors of the second floor and the third floor and above are shown. It is desirable to install it near the floor. In this case, when a fire breaks out on one of the floors and a fire occurs, the flame is prevented from spreading to the rooms on the higher floors.

[Effects of the Invention] As described above, since the fire-prevention balcony of the present invention has the above-mentioned configuration, when a fire occurs in a building and a fire occurs, the whereabouts of the flame are It is blocked by the overhanging part protruding from the peripheral part, and the flame can distract from trying to invade each room on the upper floor by entraining the balcony. Further, the eaves top and the projection are provided with a non-combustible material at least on the back surface thereof, so that the momentum of the flame can be suppressed. Further, since the fire-prevention balcony of the present invention is provided with the handrail-type fence body having the above-mentioned configuration, the air permeability of each room is very good, and even when a fire occurs, heat and smoke due to flames can remain in each room Since it does not occur, there is less pain and danger to people in each room. Therefore, the building provided with the fireproof balcony of the present invention has high fireproof performance, and even if a fire occurs, it is possible to sufficiently secure the safety of each room above the fire floor.

[Brief description of drawings]

1 and 2 show an embodiment of a fire protection balcony of the present invention. FIG. 1 is a perspective view, FIG. 2 is a side sectional view, and FIG. 3 is an example of a conventional balcony. FIG. 10 …… Building, 11 …… First floor, 12 …… Second floor, 15 …… Fireproof balcony, 16 …… Eaves top, 19 …… Overhanging portion, 20 …… Incombustible material.

Claims (1)

[Scope of utility model registration request] 1. Near the floor on the second floor or the third floor of the building,
The eaves ceiling portion is provided so as to project toward the outside of the building, and the protrusions vertically projecting downward are provided on three sides of the front edge portion and both side edge portions of the eaves ceiling portion. Composed of
A fire-prevention balcony characterized in that a non-combustible material is provided on at least the back surface of the eaves and the projecting portions on three sides.