JP2022071202A - Fireproof panel - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a fireproof panel that can prevent gas from seeping into a room when the gas is generated from a resin sheet in the fireproof panel installed such that glass panels between which the resin sheet is interposed as an intermediate layer.

SOLUTION: The present invention relates to a fireproof panel including glass panels between which a resin sheet interposed and a frame member formed with fit-in grooves into which ends of each glass panel are fitted, in which the frame member has vertical frames 5 formed with the fit-in grooves into which both ends of each glass panel are fitted, an upper frame formed with a fit-in groove into which an upper end of each glass panel is fitted, and a lower frame formed with a fit-in groove into which a lower end of each glass panel is fitted; and the vertical frame 5 is formed such that a steel plate is bent in a substantially C-shape in plan view so that the back side is open, the center of the surface in the width direction is recessed to form a fit-in groove 6, and a gap is formed between an end surface of the glass panel and a groove bottom surface 6b of the fit-in groove opposite to this end surface.

SELECTED DRAWING: Figure 3

COPYRIGHT: (C)2022,JPO&INPIT

Description

The present invention relates to a fire protection panel.

Fireproof panels such as partitions that meet the fireproof standards that can partition the room are known (for example, Patent Document 1 below).
In Patent Document 1, a caulking groove into which a glass panel is fitted is formed in a window frame, and an auxiliary frame is further provided in a detachable auxiliary frame in the window frame to form a lower caulking groove. A glass support structure such as a fire door, which is performed by removing the auxiliary frame, is disclosed.
When installing a glass panel, first insert a backup material made of non-combustible material such as glass wool into the caulking groove, then insert the glass panel into the caulking groove, and then fill the gap between the caulking groove and the glass panel with the caulking material. The material holds the glass panel.
When the glass panel is fitted, the caulking groove of the upper frame and the vertical frame is closed by the glass panel, the wall surface of the room, the open end surface of the wall surface, or the closing material.

Japanese Unexamined Patent Publication No. 9-41831

As in Patent Document 1, the conventional fire protection panel or the like has a structure in which the caulking groove is closed when the glass panel is fitted into the caulking groove. Therefore, when a resin film is interposed in the intermediate layer of the glass panel, There was no escape route for the gas that burned the resin due to the fire. Therefore, when the caulking groove is filled with the gas when the resin burns, there is a concern that the gas seeps out from the gap between the upper frame or the vertical frame and leaks into the room.
Therefore, the present invention can prevent the gas from seeping into the room when gas is generated from the resin sheet of the fire protection panel installed by fitting the glass panel with the resin sheet interposed in the intermediate layer. Provide fire protection panels.

(1) The fireproof panel of the present invention includes a glass panel sandwiching a resin sheet and a frame member having a fitting groove for fitting an end portion of the glass panel, and the frame members are provided on both sides of the glass panel. A vertical frame in which a fitting groove for fitting an end portion is formed, an upper frame in which a fitting groove for fitting the upper end portion of the glass panel is formed, and a fitting groove for fitting the lower end portion of the glass panel are formed. In the vertical frame, the steel plate is bent into a substantially C shape in a plan view so that the back surface side is opened, and the center in the width direction of the front surface is recessed to form a fitting groove, and the end surface of the glass panel is formed. A gap is formed between the surface and the bottom surface of the fitting groove facing the end surface.
According to this configuration, when the resin sheet is heated by a fire and gas is generated, the gas can be accumulated as much as possible in the fitting groove and the gas can be suppressed from leaking to the glass panel side.
(2) The fire protection panel of the present invention may have a back plate that covers the open portion on the back surface side of the vertical frame at regular intervals.
(3) The fireproof panel of the present invention includes a glass panel sandwiching a resin sheet and a frame member having a fitting groove for fitting an end portion of the glass panel, and the frame member is provided on both sides of the glass panel. A vertical frame in which a fitting groove for fitting an end portion is formed, an upper frame in which a fitting groove for fitting the upper end portion of the glass panel is formed, and a fitting groove for fitting the lower end portion of the glass panel are formed. The upper frame and at least one of the lower frames are fitted by bending the steel plate in a substantially convex shape in a plan view so that the back surface side is open and denting the center in the width direction of the front surface. The groove is formed, and a gap is formed between the end surface of the glass panel and the groove bottom surface of the fitting groove facing the end surface.
(4) The fire protection panel of the present invention may have a back plate that covers the open portion on the back surface side of the upper frame or the lower frame at regular intervals.

(5) The frame member of the fireproof panel of the present invention is formed with a vertical frame having a fitting groove for fitting both end portions of the glass panel and a fitting groove for fitting the upper end portion of the glass panel. The upper frame has an upper frame and a lower frame in which a fitting groove for fitting the lower end portion of the glass panel is formed, and the gap between the end surface of the glass panel and the bottom surface of the groove of the vertical frame is the gap. It may be formed larger than the gap between the end surface of the glass panel and the bottom surface of the groove of the upper frame or the lower frame.
According to this configuration, the gas generated by heating the resin sheet due to the fire and easily flowing upward or downward is guided to the fitting groove of the vertical frame as much as possible, and the back side of the vertical frame (that is, the glass panel) is guided from the fitting groove of the vertical frame. Can be guided to the side opposite to the surface on which the frame member is fitted, and to the wall side of the building into which the frame member is fitted).

(6) The groove width on the bottom surface side of the groove may be wider than the opening side of the fitting groove.
According to this configuration, it is possible to expand the space for storing the gas generated by heating the resin sheet due to the fire.

(7) Either or both of the fitting groove of the vertical frame and the fitting groove of the upper frame and the fitting groove of the vertical frame and the fitting groove of the lower frame of the fire protection panel of the present invention communicate with each other. ..
According to this configuration, the space for storing gas can be increased by communicating the fitting grooves with each other. As a result, for example, one end side of the glass panel is intensively heated, and when the gas is generated from the one end portion, it is possible to have a margin for accepting the gas.

(8) Exhaust holes for passing gas generated when the resin sheet is heated may be formed in the fitting groove of the frame member of the fire protection panel of the present invention.
According to this configuration, even when the resin sheet is heated in the event of a fire to generate gas, the back side of the frame member (that is, the opposite side of the surface on which the glass panel is fitted) is passed through the exhaust hole from the inside of the fitting groove. It is possible to prevent the gas from leaking to the glass panel side by releasing the gas to the surface side of the building (the wall side of the building into which the frame member is fitted).

(9) A plurality of the exhaust holes of the fire protection panel of the present invention are formed at equal intervals.
According to this configuration, gas can be easily discharged from the fitting groove.

The fire protection panel of the present invention has an effect that the gas generated from the resin sheet sandwiched between the glass panels in the event of a fire can be prevented from seeping into the room.

It is a front view which showed the fire protection panel of one Embodiment of this invention. It is a perspective view which showed the glass panel of the fire protection panel of one Embodiment of this invention. It is a perspective view which showed the vertical frame of the fire protection panel of one Embodiment of this invention. It is a left side view which showed the vertical frame of the fire protection panel of one Embodiment of this invention. It is a perspective view which showed the upper frame of the fire protection panel of one Embodiment of this invention. It is a bottom view which showed the upper frame of the fire protection panel of one Embodiment of this invention. It is a perspective view which showed the lower frame of the fire protection panel of one Embodiment of this invention. (A) A plan view showing another example of the vertical frame of the fire protection panel according to the embodiment of the present invention, and (b) a side view showing another example of the lower frame of the fire protection panel according to the embodiment of the present invention. be. (A), (b) It is a side view which showed the modification of the auxiliary ridge portion of the fire protection panel of one Embodiment of this invention. It is a top view which showed the modification of the vertical frame of the fire protection panel of one Embodiment of this invention. It is a top view which showed the modification of the vertical frame of the fire protection panel of one Embodiment of this invention. It is a side view which showed the modification of the upper frame and the lower frame of the fire protection panel of one Embodiment of this invention.

Hereinafter, embodiments of the fire protection panel of the present invention will be described with reference to the drawings.
As shown in FIG. 1, the fire protection panel 1 of the present invention has a glass panel 2 and a frame member 3 for fitting and supporting an end portion of the glass panel 2.

As shown in FIG. 2, the glass panel 2 is formed of a three-layer structure in which a resin sheet 4 is sandwiched between two glass plates 2s and 2s and cut into a substantially rectangular shape. A resin sheet 4 is exposed between the ends of the glass plates 2s and 2s on the end surface of the glass panel 2.
The resin sheet 4 is made of a material such as fluororesin.

As shown in FIG. 1, the frame member 3 includes vertical frames 5, 5, an upper frame 11 and a lower frame 12.
As shown in FIG. 3 or 4, the vertical frame 5 is in the width direction of the surface (hereinafter referred to as “surface”) on which the glass panel 2 is arranged (hereinafter referred to as “surface”) shown in FIG. 2, that is, in the center of the surface in the lateral direction and in the longitudinal direction. It is a rectangular parallelepiped member whose outer shape is roughly flat with the extending fitting groove 6 formed therein.
In the present embodiment, the vertical frame 5 is formed by bending an elongated rectangular steel plate into a substantially C-shape in a plan view and further denting the center in the width direction on the front surface side, and the back surface of the frame body 5A. It has a back plate 5B that covers the open portion on the side at regular intervals. In the present specification, the back surface refers to a surface opposite to the surface on which the glass panel 2 is arranged and facing the wall of the building into which the frame member is fitted.

In the vertical frame 5, the plate portion extending in parallel with a space on the back surface side is the back surface portion 7, and the plate portion that bends about 90 ° from the back surface portion 7 to form a thickness is the side surface portion 8 and the side surface portion 8. The surface portion 9 is a plate portion extending flatly between the 8 and 8 and having a fitting groove 6 formed in the center in the width direction.

The side surface portion 8 rises from the back surface portion 7 to such an extent that a fitting groove 6 capable of fitting the end portion of the glass panel 2 shown in FIG. 2 can be formed.
The front surface portion 9 has a flat portion 9a extending substantially parallel to the back surface portion 7 and a fitting groove 6 provided between the flat portions 9a and 9a, and the end portion of the glass panel 2 is provided in the fitting groove 6. It can be fitted.

The fitting groove 6 formed in the front surface portion 9 is formed by an inner side surface 6a bent at approximately 90 ° toward the back surface side at substantially the center of the front surface portion 9 and a groove bottom surface 6b bent at approximately 90 ° with respect to the inner surface portion 6a. It has a shape that is recessed toward the back surface 7 side with a certain width dimension.
In the fitting groove 6, the distance from the end surface of the glass panel 2 to the groove bottom surface 6b is about 2 mm or more and 20 mm or less, preferably about 5 mm or more and 16 mm in a state where the end portion of the glass panel 2 is fitted in the fitting groove 6. It should be formed as follows. Specifically, the fitting groove 6 may be formed to a depth of about 15 mm or more and 35 mm or less.

On the groove bottom surface 6b of the fitting groove 6, a plurality of exhaust holes 10 that enable exhaust in the fitting groove 6 are formed at equal intervals in the extending direction of the fitting groove 6. The size and shape of the exhaust hole 10 are not particularly limited, and the fitting groove 6 may be opened to such an extent that the gas generated from the resin sheet 4 due to the heating of the glass panel 2 does not completely fill the fitting groove 6.

The back plate 5B is formed of a flat steel plate. The width dimension of the back surface plate 5B is set so as to be arranged between the back surface portions 7 and 7. Further, the vertical direction, that is, the longitudinal dimension of the back plate 5B is formed to be a predetermined dimension that can serve as an anchor when the back plate 5B fixes the vertical frame 5 to the steel material on the building side.

As shown in FIG. 5 or FIG. 6, the upper frame 11 has a frame main body 11A in which a convex portion 13 extending along the fitting groove 6 is formed on one side of the fitting groove 6 and the fitting groove 6. The other side of the fitting groove 6 has an auxiliary ridge portion 14 that is detachably attached along the fitting groove 6 and a back surface plate 11B that has the same function as the back surface plate 5B.

The frame body 11A of the upper frame 11 is formed at intervals except for points where the protrusions 13 are provided and openings (not shown) through which the fixture is inserted along the fitting groove 6. It is formed in substantially the same manner as the vertical frame 5. That is, in the upper frame 11, the plate portion extending in parallel with a space on the back surface side becomes the back surface portion 7, and the plate portion that bends about 90 ° from the back surface portion 7 to form the thickness becomes the side surface portion 8. The surface portion 9 is a plate portion having a fitting groove 6 formed in the center in the width direction extending flatly between the eight and eight.

After the inner side surface 6a of one of the fitting grooves 6 extends beyond the flat portion 9a of the surface portion 9, the ridge portion 13 bends at 90 ° in the direction away from the fitting groove 6 and faces the flat portion 9a again. It is formed in a substantially U shape bent at 90 °. The ridge portion 13 extends along the fitting groove 6.
A plurality of openings (not shown) through which the fixture is inserted are formed along the fitting groove 6 on the flat portion 9a facing the convex portion 13 with the fitting groove 6 interposed therebetween.

The auxiliary ridge portion 14 is an elongated member arranged in parallel with the ridge portion 13 from one end to the other end of the fitting groove 6, and is substantially the same as the ridge portion 13 in a cross-sectional view orthogonal to the extending direction. It is a member formed in a shape.
Specifically, as shown in FIG. 5, the auxiliary ridge portion 14 has a rising side portion 14a extending at approximately 90 ° from the surface portion 9 when arranged on the surface portion 9 of the frame main body 11A, and a rising side portion 14a. It has a top surface portion 14b extending between the 14a and serving as a top surface of the protrusion. The rising side portion 14a on the fitting groove 6 side is installed so as to be linear and substantially flush with the inner side surface 6a of the fitting groove 6.

As shown in FIG. 6, an opening 20 through which a fixture such as a screw (not shown) is inserted is formed in the top surface portion 14b in the flat portion 9a when the auxiliary ridge portion 14 is arranged along the fitting groove 6. A plurality of them are formed at positions facing the openings (not shown).

As shown in FIGS. 5 and 6, the bottom surface 6b of the fitting groove 6 of the upper frame 11 also has an exhaust hole that enables exhaust in the fitting groove 6 as in the fitting groove 6 of the vertical frame 5. A plurality of 10s are formed at intervals in the extending direction of the fitting groove 6. The size and shape of the exhaust hole 10 is not particularly limited as long as the rigidity of the upper frame 11 supporting the glass panel 2 can be maintained, and the exhaust hole 10 is heated from the resin sheet 4 by heating the glass panel 2. The fitting groove 6 may be opened to such an extent that it is not completely filled with the generated gas.
Regarding the fitting groove 6 of the upper frame 11, the distance from the end surface of the glass panel 2 to the groove bottom surface 6b is preferably about 2 mm or more and 20 mm or less with the end portion of the glass panel 2 fitted in the fitting groove 6. Is preferably formed so as to be approximately 5 mm or more and 16 mm or less. Specifically, the fitting groove 6 may be formed to a depth of about 15 mm or more and 35 mm or less.

As shown in FIG. 7, the lower frame 12 is formed in a shape that is vertically symmetrical when arranged so as to face the upper frame 11. Each configuration of the lower frame 12 is designated by a corresponding reference numeral for a configuration symmetrical to the upper frame 11 shown in FIG. 5, and the description thereof will be omitted.

Next, the installation method of the fire protection panel 1 and the operation and function of the fire protection panel 1 in the event of a fire will be described.
When installing the fire protection panel 1, as shown in FIG. 3, the back plate 5B is arranged and fixed from the inside of the back surface portion 7 of the vertical frame 5 to the back surface portions 7 and 7. Similarly, as shown in FIGS. 5 and 7, the back plates 11B and 12B are arranged and fixed from the inside between the back surfaces 7 and 7 of the frame main body 11A of the upper frame 11 and the frame main body 12A of the lower frame 12, respectively. do.

Next, the vertical frame 5 to which the back plate 5B is fixed is installed and fixed in the side wall surface of the room where the fire protection panel 1 is installed or the opening formed in the side wall.
The frame body 11A of the upper frame 11 to which the back plate 11B is fixed is fixed to the upper part of the opening formed in the ceiling surface or the side wall over the upper part of the vertical frame 5.

The frame body 12A of the lower frame 12 to which the back plate 12B is fixed is arranged and fixed at the lower part of the opening formed in the floor surface or the side wall over the lower part of the vertical frame 5.
At this time, the frame main body 11A of the upper frame 11 and the frame main body 12A of the lower frame 12 are fixed so that the auxiliary ridge portion 14 is arranged closer to the side where the glass panel 2 is fitted in the room.

A setting block (not shown) formed in a rectangular parallelepiped shape is arranged on the groove bottom surface 6b of the fitting groove 6 of the frame body 12A of the lower frame 12.
The lower end of the glass panel 2 is placed on a setting block (not shown) of the frame body 12A of the lower frame 12, and the upper end of the glass panel 2 is placed in the fitting groove 6 of the frame body 11A of the upper frame 11. One side end of the glass panel 2 is fitted into the fitting groove 6 of the vertical frame 5 as much as possible.

As a result, the glass panel 2 is housed in the openings surrounded by both the vertical frames 5 and 5, the frame body 11A of the upper frame 11 and the frame body 12A of the lower frame 12, and the other side end portion of the glass panel 2 is formed. It is made possible to fit into the fitting groove 6 of the other vertical frame 5 facing each other. In this state, the positions are adjusted in the horizontal direction so that the left and right side ends of the glass panel 2 fit into both of the fitting grooves 6 of the vertical frame 5 facing each other.

Auxiliary ridges 14 are installed in each of the upper frame 11 and the lower frame 12, and a fixture (not shown) is inserted from the opening 20 to insert the auxiliary ridges 14 into the upper frame 11 and the lower frame 12, respectively. It is fixed to the side of the fitting groove 6. A caulking material or the like is appropriately arranged between the glass panel 2 and the inner side surface 6a of the fitting groove 6.
In this state, in the fitting grooves 6 of the vertical frames 5 and 5 and the upper frame 11, a gap is formed in which the distance from the end surface of the glass panel 2 to the groove bottom surface 6b is about 2 mm or more and 20 mm or less or about 5 mm or more and 16 mm or less. Has been done.

When the vertical frame 5, the upper frame 11 and the lower frame 12 are installed in this way, between the fitting groove 6 of the vertical frame 5 and the fitting groove 6 of the upper frame 11 and between the fitting groove 6 and the lower of the vertical frame 5. No member such as a closing material is installed between the frame 12 and the fitting groove 6. Therefore, all the spaces formed by the fitting groove 6 and the end portion of the glass panel 2 communicate with each other.
As described above, the installation of the fire protection panel 1 in the opening formed in the room or the wall portion of the room is completed.

When a fire breaks out in the room where the fire protection panel 1 is installed, the temperature of the glass panel 2 may rise, the resin sheet 4 of the intermediate layer may be melted, and gas may be generated from the resin sheet 4. When gas is generated from the resin sheet 4, gas is collected from the end surface of the glass panel 2 in each fitting groove 6 of the vertical frame 5, the upper frame 11 and / or the lower frame 12.

In the case of the conventional fireproof glass with a frame in which the inside of the fitting groove 6 is substantially sealed when the glass panel 2 is fitted into the fitting groove 6, the gas after filling the gas in the fitting groove 6 is fitted. There is a risk that the gas may leak from a slight gap between the groove 6 and the glass panel 2 to give off an offensive odor or cause ignition.

However, according to the fire protection panel 1 of the present invention, the exhaust hole 10 is formed in the groove bottom surface 6b of each fitting groove 6 of the vertical frame 5, the upper frame 11 and the lower frame 12, so that the exhaust hole 10 is generated from the resin sheet 4. The gas can be kept in the fitting groove 6 and on the back surface side of the vertical frame 5, the upper frame 11 and the lower frame 12 without leaking the gas to the indoor or outdoor side where there is fire.

Therefore, when a fire breaks out in the vicinity of the fire protection panel 1, it is possible to effectively prevent the gas generated from the resin sheet 4 from giving off an offensive odor or igniting the gas. That is, since the glass panel 2 has the resin sheet 4, the fire protection panel 1 has an effect that the impact resistance can be enhanced and the fire protection performance can be improved.

Further, the space between the fitting groove 6 of the vertical frame 5 and the glass panel 2, the space between the fitting groove 6 of the upper frame 11 and the glass panel 2, and the fitting groove 6 of the lower frame 12 and the glass panel 2 Since the spaces between the two are connected to each other, there is room for gas to be stored. That is, even when the fire protection panel 1 is locally heated and a large amount of gas is generated from one side of the vertical frame 5 of the glass panel 2, for example, the gas spread in the fitting groove 6 of the vertical frame 5 is generated. It flows into the fitting groove 6 of the adjacent upper frame 11 or lower frame 12. Therefore, it is possible to increase the capacity for storing gas in each part of the frame member 3 to more effectively prevent the filling of the gas.

Further, since the fire protection panel 1 has a gap between the groove bottom surface 6b and the end surface of the glass panel 2, the glass panel 2 is tilted with respect to the frame member 3 due to the occurrence of an earthquake or the like. It is possible to avoid contact by absorbing the inclination of the frame member 3 with respect to the frame member 3 to some extent. Therefore, the fire protection panel 1 has an effect that damage to the glass panel 2 due to contact between the groove bottom surface 6b and the glass panel 2 can be effectively prevented.

In the above-described embodiment, an example of the shapes of the vertical frame 5, the upper frame 11 and the lower frame 12 is shown, but the present invention is not applicable only to the frame member 3 having the shape of the above-described embodiment. not. That is, in the present invention, if each of the vertical frame 5, the upper frame 11 and the lower frame 12 is hollow and a fitting groove 6 for fitting the glass panel 2 is formed, for example, FIG. 8A is shown. It can be applied to any framed fireproof glass, such as the vertical frame shown in 1 or the lower frame shown in FIG. 8 (b).

Further, an example in which the exhaust holes 10 are formed in the fitting grooves 6 and 6 of the vertical frames 5 and 5, the fitting grooves 6 of the upper frame 11 and the fitting grooves 6 of the lower frame 12 is shown, but the exhaust holes 10 are shown. Is formed in any of the fitting grooves 6 of the vertical frame 5, the upper frame 11 or the lower frame 12, and can exert the effect of the present invention as much as possible. Further, since the fire protection panel 1 is provided with a gap between the end surface of the glass panel 2 and the groove bottom surface 6b, even if the discharge hole 10 is not formed, a certain amount of gas is accumulated in the event of a fire and the gas is glass. It has the effect of suppressing exudation to the panel 2 side.

Further, the exhaust hole 10 may be formed on the inner side surface 6a side of the fitting groove 6 as long as it is not covered by the glass panel 2.
Further, the fitting groove 6 of the vertical frame 5, the upper frame 11 or the lower frame 12 may partially communicate with each other.

Further, the frame member does not have to be integrally molded. For example, the auxiliary ridge portion 14 shown in FIG. 5 is combined with L-shaped steel as shown in FIGS. 9A and 9B. It may be formed, and the vertical frame 5 shown in FIG. 3 may be formed by combining two members as shown in FIG. 10.

Furthermore, as shown in FIGS. 11 and 12, the groove width of the fitting groove 6 of the vertical frame 5, the upper frame 11 and / or the lower frame 12 is the groove bottom surface with respect to the opening 6t side in the groove depth direction. The 6b side may be widened.
According to this configuration, there is an effect that a larger space for storing gas can be taken as compared with the case where the groove width of the fitting groove 6 is formed straight in the depth direction.

1 Fire protection panel 2 Glass panel 3 Frame member 4 Resin sheet 5 Vertical frame 6 Fitting groove 6b Groove bottom 10 Exhaust hole 11 Upper frame 12 Lower frame

Claims (9)

It is provided with a glass panel sandwiching a resin sheet and a frame member having a fitting groove for fitting an end portion of the glass panel.
The frame member includes a vertical frame having a fitting groove for fitting both end portions of the glass panel, an upper frame having a fitting groove for fitting the upper end portion of the glass panel, and the glass panel. It has a lower frame in which a fitting groove for fitting the lower end is formed, and has a lower frame.
In the vertical frame, the steel plate is bent into a substantially C shape in a plan view so that the back surface side is opened, and the center in the width direction of the front surface is recessed to form a fitting groove.
A fire protection panel in which a gap is formed between an end surface of the glass panel and the bottom surface of the fitting groove facing the end surface. The fireproof panel according to claim 1, further comprising a back plate that covers the open portion on the back surface side of the vertical frame at regular intervals. It is provided with a glass panel sandwiching a resin sheet and a frame member having a fitting groove for fitting an end portion of the glass panel.
The frame member includes a vertical frame having a fitting groove for fitting both end portions of the glass panel, an upper frame having a fitting groove for fitting the upper end portion of the glass panel, and the glass panel. It has a lower frame in which a fitting groove for fitting the lower end is formed, and has a lower frame.
For at least one of the upper frame and the lower frame, the steel plate is bent into a substantially convex shape in a plan view so that the back surface side is opened, and the center in the width direction of the front surface is recessed to form a fitting groove.
A fire protection panel in which a gap is formed between an end surface of the glass panel and the bottom surface of the fitting groove facing the end surface. The fireproof panel according to claim 3, further comprising a back plate that covers the open portion on the back surface side of the upper frame or the lower frame at regular intervals. The frame member includes a vertical frame having a fitting groove for fitting both end portions of the glass panel, an upper frame having a fitting groove for fitting the upper end portion of the glass panel, and the glass panel. It has a lower frame in which a fitting groove for fitting the lower end is formed, and has a lower frame.
The gap between the end surface of the glass panel and the groove bottom surface of the vertical frame is formed larger than the gap between the end surface of the glass panel and the groove bottom surface of the upper frame or the lower frame. The fireproof panel according to any one of claims 1 to 4. The fireproof panel according to any one of claims 1 to 5, wherein the groove width on the bottom surface side of the groove is wider than the opening side of the fitting groove. Any one of claims 1 to 6 in which either or both of the fitting groove of the vertical frame, the fitting groove of the upper frame, the fitting groove of the vertical frame, and the fitting groove of the lower frame communicate with each other. The fire protection panel described in the section. The fireproof panel according to any one of claims 1 to 7, wherein an exhaust hole through which a gas generated when the resin sheet is heated is formed in the fitting groove of the frame member. The fire protection panel according to claim 8, wherein a plurality of the exhaust holes are formed at equal intervals.

Images