JP7046725B2 - How to manufacture a fireproof structure for shutter guide rails - Google Patents

Description

The present invention relates to a method for manufacturing a fireproof structure for a guide rail for a shutter.

Extruded products made of aluminum alloy or the like are often used for the guide rails that guide the edges of the shutter curtain and the outer frame that supports the guide rails. Aluminum guide rails and outer frames can be designed and rust-proof, making them suitable for residential use. On the other hand, the aluminum guide rails and the outer frame may be deformed or even melted when exposed to excessive heat in the event of a fire, and the original fire prevention performance of the shutter device may not be fully exhibited.

Therefore, the shutter guide rail structure of Patent Document 1 includes a retaining structure in which a steel reinforcing material is provided inside the guide rail.

Further, in the fire protection structure of the shutter guide rail of Patent Document 2, one of the locking tip edges of the guide portion reinforcing material has the guide portion in the locking groove formed on the inner surface of the inner surface of the guide portion on the opening edge side. It is engaged from the inside. The other locking tip and the guide portion of the guide portion reinforcing material are fixed by the fixing means at a position opposite to the retaining member with respect to the retaining piece. A part of the wall portion of the guide portion is sandwiched between the guide portion reinforcing material and the inner reinforcing material connected to the frame portion, and in this sandwiched portion, the guide portion, the guide portion reinforcing material and the inner reinforcing material are fixing means. Is fixed by.

Japanese Unexamined Patent Publication No. 2018-3543 Japanese Patent No. 6227713

However, since the shutter guide rail structure of Patent Document 1 has a steel retaining structure only inside the guide rail portion, there is a problem that the entire aluminum outer frame is easily deformed and melted by a fire. Further, since the fireproof structure of the shutter guide rail of Patent Document 2 is a structure for continuously connecting the building frame to the guide portion with a steel material, it has a decorative frame material or the like for covering the steel material portion for that purpose. The number of parts was large, the structure was complicated, and the weight increased.

The present invention has been made in view of the above circumstances, and an object thereof is a method for manufacturing a fireproof structure of a guide rail for a shutter, which has a simple structure, can suppress deformation of an outer frame due to a flame, and can improve fireproof performance. Is to provide.

Next, the means for solving the above problems will be described with reference to the drawings corresponding to the embodiments.
The method for manufacturing a fireproof structure for a shutter guide rail 37 according to claim 1 of the present invention includes a shutter curtain 21 that raises and lowers and covers an opening 13 that opens in the outer wall 15 on the outside of the outer wall 15.
A pair of guide rails 23 extending in the ascending / descending direction of the shutter curtain 21 and having each side portion 35 of the shutter curtain 21 inserted into the slit 39 to guide the ascending / descending. When,
The mounting piece portion 63 extending along the guide rail 23 and parallel to the outer wall 15 is fixed to the outer wall 15, and the tip of the outer plate portion 53 perpendicular to the outer wall 15 connected to the mounting piece portion 63 is the tip. The outside of the guide rail 23 is supported by the shutter curtain 21, and the tip of the inner plate portion 47 connected to the mounting piece portion 63 on the opposite side of the outer plate portion 53 and perpendicular to the outer wall 15 is the shutter curtain 21. An aluminum outer frame 25 that supports the inside of the guide rail 23 and
It is made of a steel material and has a fixed piece portion 65 fixed to the outer wall 15 together with the mounting piece portion 63 sandwiching the mounting piece portion 63, and at the end of the fixed piece portion 65 opposite to the outer plate portion 53. A reinforcing member 27 formed by bending a support piece portion 67 stacked in parallel with at least a part of the inner plate portion 47 to form an L-shape in a plan view.
It is a method of manufacturing the fire protection structure of the guide rail 37 for a shutter provided with the above.
Before the reinforcing member 27 is co-tightened to the outer wall, a screw through hole 71 is formed in the reinforcing member 27 and the outer frame 25, and the screw through holes 71 and 71 are matched with each other, and then The support piece portion 67 and the inner plate portion 47 are fixed, and then the reinforcing member 27 and the outer frame 25 are penetrated through the screw through holes 71 and 71 by the fixing screw 69, and the outer frame is formed. It is characterized in that it is fastened and fixed together to the 25 and the outer wall 15.

In this method of manufacturing the fireproof structure of the shutter guide rail 37, each guide rail 23 is fixed to the outer wall 15 via the outer frame 25. In the outer frame 25, a mounting piece portion 63 parallel to the outer wall 15 is fixed to the outer wall 15. The mounting piece portion 63 is formed with an outer plate portion 53 and an inner plate portion 47 perpendicular to the outer wall 15 at the end on the side close to the shutter curtain 21 and the end on the opposite side. Of these, the outer plate portion 53 supports the guide rail 23 whose tip is outside the shutter curtain 21. The inner plate portion 47 supports a part of the guide rail 23 whose tip is inside the shutter curtain 21. That is, each guide rail 23 that guides the side portions 35 on both sides of the shutter curtain 21 is fixed to the outer wall 15 via the aluminum outer frame 25. By making the outer frame 25 made of aluminum, the design and rust prevention of the shutter guide rail 37 can be improved and the weight can be reduced. Here, when the shutter guide rail 37 is exposed to a flame from the outside due to a fire or the like, the outer plate portion 53 of the outer frame 25 first receives heat. When the amount of heat input exceeds a predetermined value, the outer plate portion 53 is easily deformed. When this deformation occurs, the outer plate portion 53 is released from the support for the guide rail 23 and opens to the side opposite to the guide rail 23. That is, the outer plate portion 53 opened outward with the mounting piece portion 63 as a fulcrum loses the support function for the guide rail 23. On the other hand, in the inner plate portion 47, the inner surface of the space portion 73 facing the outer plate portion 53 is covered with the support piece portion 67 of the reinforcing member 27 made of a steel material. The inner plate portion 47 is pressed from the outside on the opposite side of the shutter curtain 21 by the reinforcing member 27 made of a steel material having a melting point higher than that of aluminum, so that the inner plate portion 47 is suppressed from being deformed to the outside away from the shutter curtain 21. Therefore, the shutter guide rail 37 is prevented from being deformed to the outside as a whole of the outer frame 25 as compared with the case where the reinforcing member 27 is not provided. That is, the shutter guide rail 37 has a simple structure in which only the reinforcing member 27 is added, and the fire prevention performance is enhanced. As a result, the entire outer frame 25 of the shutter curtain 21 is deformed outward, and the side portion 35 of the shutter curtain 21 is prevented from coming out from the slit 39 of the guide rail 23.

Then, in the method of manufacturing the fire protection structure of the shutter guide rail 37, the reinforcing member 27 is fixed in advance at a predetermined position of the outer frame 25. In the reinforcing member 27, the fixing piece portion 65 is overlapped with the mounting piece portion 63 of the outer frame 25 and fixed to the outer wall 15 by the fixing screw 69. A screw through hole 71 through which the fixing screw 69 penetrates is formed in the fixing piece portion 65 of the reinforcing member 27 and the mounting piece portion 63 of the outer frame 25. In the reinforcing member 27, the screw through hole 71 is aligned with the screw through hole 71 of the mounting piece portion 63, and the support piece portion 67 is fixed to the inner plate portion 47 of the outer frame 25. The support piece portion 67 and the inner plate portion 47 can be fixed by, for example, a rivet 75 or the like. As a result, the reinforcing member 27 can be fastened to the outer frame 15 by passing the fixing screw 69 through the screw through hole 71 between the fixing piece portion 65 and the mounting piece portion 63 without supporting the reinforcing member 27 by hand. Can be installed at the same time.

The method for manufacturing a fireproof structure for a shutter guide rail 37 according to claim 2 of the present invention is the method for manufacturing a fireproof structure for a shutter guide rail 37 according to claim 1.
The reinforcing member 27 is characterized in that the reinforcing member 27 is intermittently arranged at a plurality of locations in the extending direction of the outer frame 25.

In this method of manufacturing the fireproof structure of the shutter guide rail 37, a plurality of reinforcing members 27 are attached along the guide rail 23 at intervals. As a result, the total weight of the reinforcing member 27 is lighter than that in the case where the reinforcing member 27 is formed in a long length over the entire length of the guide rail 23.

The method for manufacturing a fireproof structure for a shutter guide rail 37 according to claim 3 of the present invention is the method for manufacturing a fireproof structure for a shutter guide rail 37 according to claim 2.
Each of the plurality of reinforcing members 27 is fastened together with the mounting piece portion 63 to the outer wall 15 by a fixing screw 69 for fixing the mounting piece portion 63 of the outer frame 25 to the outer wall 15. And.

In this method of manufacturing a fireproof structure for the shutter guide rail 37, when the outer frame 25 is attached to the outer wall 15, the reinforcing member 27 is fastened together with the outer frame 25 by a fixing screw 69 and fixed to the outer wall 15. Therefore, the work of independently attaching the reinforcing member 27 for enhancing the fire prevention performance to the outer wall 15 and the fixing tool are not required.

According to the method for manufacturing a fireproof structure for a shutter guide rail according to claim 1 of the present invention, it is possible to suppress deformation of the outer frame due to a flame and improve fireproof performance with a simple structure. Further, since the reinforcing structure is formed inside the outer frame, the appearance design of the outer frame is not deteriorated. In addition, it is possible to eliminate the trouble of constructing a fireproof structure.

According to the method for manufacturing a fireproof structure for a shutter guide rail according to claim 2, the fireproof performance can be improved while suppressing an increase in weight.

According to the method for manufacturing a fireproof structure for a shutter guide rail according to claim 3, the labor for constructing the fireproof structure can be reduced.

It is a perspective view which shows the appearance of the shutter apparatus provided with the fire protection structure of the guide rail for a shutter which concerns on embodiment of this invention. It is a plan sectional view of the guide rail and the outer frame shown in FIG. It is a front view of the outer frame and the reinforcing member which omitted the guide rail. FIG. 3 is an enlarged perspective view of a main part in which a part of the outer frame and the reinforcing member shown in FIG. 3 is cut out. It is an operation explanatory view of the guide rail for a shutter which opened the outer plate part by a flame. It is a cross-sectional view of the main part of the fire protection structure of the guide rail for a shutter which concerns on a modification. (A) is a front view in which the guide rail of the fire protection structure of the shutter guide rail according to the modified example shown in FIG. 6 is omitted, and (b) is a sectional view taken along the line AA of (a).

Hereinafter, embodiments according to the present invention will be described with reference to the drawings.
FIG. 1 is a perspective view showing the appearance of a shutter device 11 provided with a fire protection structure for a shutter guide rail according to an embodiment of the present invention.
The fire protection structure of the shutter guide rail according to the present embodiment can be suitably used for the shutter device 11 that covers the opening 13 (see FIG. 2) of a building such as a house. An opening 13 is provided in the outer wall 15 of the house. For example, a sash window 17 is attached to the opening 13. The shutter device 11 is attached to the outside of the sash window 17. A storage portion 19 of the shutter device 11 is attached above the opening 13 to which the sash window 17 is attached.

The fire protection structure of the shutter guide rail according to the present embodiment has a shutter curtain 21, a guide rail 23, an outer frame 25, and a reinforcing member 27 as main configurations.

The shutter curtain 21 raises and lowers and covers the opening 13 that opens to the outer wall 15 on the outside of the outer wall 15. That is, the shutter curtain 21 covers the sash window 17 from the outside of the outer wall 15. The shutter curtain 21 is configured by connecting a plurality of aluminum or steel slats 29.

The shutter curtain 21 is configured such that a plurality of slats 29 are connected to each other in a rotatable plane shape by engaging both end edges along adjacent longitudinal directions. A seat plate 31 is attached to the lower edge of the shutter curtain 21 which is the tip in the steering direction. The seat plate 31 sits on the lower frame 33 when the shutter curtain 21 is lowered. A stopper (not shown) may be provided in the vicinity of the seat plate 31 to regulate the drawing into the storage portion 19.

A pair of guide rails 23 are provided on the left and right sides of the opening 13 with the shutter curtain 21 interposed therebetween. The guide rail 23 extends in the ascending / descending direction of the shutter curtain 21, and guides each side portion 35 (see FIG. 2) of the shutter curtain 21 by sandwiching it from the front and back surfaces.

FIG. 2 is a plan sectional view of the guide rail 23 and the outer frame 25 shown in FIG.
In the fire protection structure of the shutter guide rail, the guide rail 23, the outer frame 25, and the reinforcing member 27 constitute the shutter guide rail 37.

Each guide rail 23 is formed in a substantially U-shape in a plan cross section for guiding the ascent and descent by inserting the side portion 35 of the shutter curtain 21 into the slit 39. More specifically, the guide rail 23 having a substantially U-shaped cross-sectional view includes an inner fixing piece 41 that projects vertically from the slit opening side toward the outer wall 15, and an outer wall 15 from the back side opposite to the slit opening side. The outer engaging piece 43 projecting in parallel with the above is formed into a substantially h-shaped shape in a plan view.

The connecting screw 45 can penetrate the internal fixing piece 41 of the guide rail 23. A fixing seat 49 formed on the inner plate 47 of the outer frame 25 is fixed to the inner fixing piece 41 by a connecting screw 45. Further, the outer engaging piece 43 of the guide rail 23 has an engaging groove 51 at the protruding tip. The engaging claw portion 55 formed on the outer plate portion 53 of the outer frame 25 engages with the engaging groove 51.

A sound deadening band mounting groove 59 is formed on the facing inner surface of the guide rail 23 that sandwiches the slit opening 57. A muffling band 61 such as mohair that is in contact with the front and back surfaces of the side portion 35 of the shutter curtain 21 is attached to the muffling band mounting groove 59.

For the guide rail 23, an extruded product made of an aluminum alloy or the like can be used.

The outer frame 25 has a mounting piece portion 63. The mounting piece portion 63 is parallel to the outer wall 15 and extends along the guide rail 23. In the mounting piece portion 63, the inner plate portion 47 and the outer plate portion 53 are connected in parallel to the end on the shutter curtain side and the end on the opposite side thereof.

The outer plate portion 53 projects vertically to the outer wall 15 and its tip supports the outside of the guide rail 23 with respect to the shutter curtain 21. The engaging claw portion 55 is formed at the tip of the outer plate portion 53. The outer plate portion 53 engages the engaging claw portion 55 with the engaging groove 51 formed in the outer engaging piece 43 of the guide rail 23 to support the outside of the guide rail 23.

The inner plate portion 47 projects vertically to the outer wall 15 and then is further bent twice at a right angle to form a Z-bent shape. The tip of the inner plate portion 47 supports the inside of the guide rail 23 rather than the shutter curtain 21. The fixed seat portion 49 is formed at the tip of the inner plate portion 47. In the inner plate portion 47, the inner fixing piece 41 of the guide rail 23 is fastened to the fixed seat portion 49 by the connecting screw 45 to support the inside of the guide rail 23.

For the outer frame 25, an extruded product made of an aluminum alloy or the like in which the mounting piece portion 63, the outer plate portion 53, and the inner plate portion 47 are integrally molded can be used.

The reinforcing member 27 has a fixed piece portion 65. The fixed piece portion 65 is fixed to the outer wall 15 together with the mounting piece portion 63 with the mounting piece portion 63 of the outer frame 25 interposed therebetween. In the reinforcing member 27, a support piece portion 67 to be overlapped in parallel with at least a part of the inner plate portion 47 is bent at an end of the fixed piece portion 65 opposite to the outer plate portion 53. Therefore, the reinforcing member 27 is formed in a plan view L-shape in which the support piece portion 67 perpendicular to the outer wall 15 is bent to the fixed piece portion 65 parallel to the outer wall 15.

The reinforcing member 27 is made of a steel material. As the material of the steel material, for example, SGMCC can be used. Further, the plate thickness of the reinforcing member 27 can be, for example, about 1.2 mm.

FIG. 3 is a front view of the outer frame 25 and the reinforcing member 27 in which the guide rail 23 is omitted.
In the present embodiment, in the fire protection structure of the shutter guide rail, the reinforcing members 27 are arranged at a plurality of locations intermittently in the extending direction of the outer frame 25. The reinforcing member 27 can be formed with a length in the extending direction of about 60 to 100 mm. In this case, the reinforcing member 27 can be attached at a pitch of, for example, about 350 mm between adjacent reinforcing members.

The reinforcing member 27 may be formed in a long length over the entire length of the guide rail 23 in the longitudinal direction. In this case, the weight of the shutter guide rail 37 increases, but the fire prevention performance can be further improved as described later.

FIG. 4 is an enlarged perspective view of a main part in which a part of the outer frame 25 and the reinforcing member 27 shown in FIG. 3 is cut out.
In the fire protection structure of the shutter guide rail, each of the plurality of reinforcing members 27 is fastened to the outer wall 15 together with the mounting piece 63 by a fixing screw 69 for fixing the mounting piece 63 of the outer frame 25 to the outer wall 15. .. The reinforcing member 27 penetrates the fixing screw 69 through at least one screw through hole 71 formed in the mounting piece portion 63, and is fastened together with the fixing piece portion 65 to the outer wall 15.

Next, the operation of the above configuration will be described.
In the fire protection structure of the shutter guide rail according to the present embodiment, the side portions 35 on both sides of the shutter curtain 21 are guided by the guide rails 23, respectively. The shutter curtain 21 moves up and down along the guide rail 23 by guiding the side portions 35 on both sides to the guide rail 23, and the opening 13 can be opened and closed.

Each guide rail 23 is fixed to the outer wall 15 via the outer frame 25. In each outer frame 25, a mounting piece portion 63 parallel to the outer wall 15 is fixed to the outer wall 15. The mounting piece portion 63 is formed with an outer plate portion 53 and an inner plate portion 47 perpendicular to the outer wall 15 at the end on the side close to the shutter curtain 21 and the end on the opposite side. Of these, the tip of the outer plate portion 53 supports the outside of the guide rail 23 rather than the shutter curtain 21. The tip of the inner plate portion 47 supports the inside of the guide rail 23 rather than the shutter curtain 21.

The outer plate portion 53 is formed so as to be bent at a right angle at the outer end of the mounting piece portion 63 so as to project vertically from the outer wall 15, and has a substantially linear shape in a plan sectional view. The inner plate portion 47 is bent at the inner end of the mounting piece portion 63 to become vertical, protrudes from the outer wall 15, and then further bent, and is formed into a substantially Z-bent shape in a plan sectional view. Both the outer plate portion 53 and the inner plate portion 47 project vertically from the outer wall 15 with the mounting piece portion 63 interposed therebetween, and a space portion 73 is formed between the two. The space portion 73 is closed by attaching the guide rail 23 to the tip of the outer plate portion 53 (engagement claw portion 55) and the tip of the inner plate portion 47 (fixed seat portion 49).

That is, each of the pair of guide rails 23 that guide the side portions 35 on both sides of the shutter curtain 21 is fixed to the outer wall 15 via the outer frame 25 made of aluminum. By making the outer frame 25 made of aluminum, the design and rust prevention of the shutter guide rail 37 can be improved and the weight can be reduced.

The shutter curtain 21 covers the opening 13 by lowering the side portions 35 on both sides of the shutter curtain 21 by being guided by a guide rail 23 supported by the outer wall 15 via the outer frame 25. As a result, the sash window 17 provided at the opening 13 of the building can be covered from the outdoor side of the outer wall 15. When the shutter curtain 21 is lowered, the outer frame 25 is exposed to the outdoor side, while the inner plate portion 47 is inside the shutter curtain 21 and is shielded from the outside.

FIG. 5 is an explanatory view of the operation of the shutter guide rail 37 in which the outer plate portion 53 is opened by the flame.
Here, when the shutter guide rail 37 is exposed to a flame from the outside due to a fire or the like, the outer plate portion 53 of the outer frame 25 first receives heat. The outer plate portion 53 tends to be deformed when the amount of heat input exceeds a predetermined value, that is, when it approaches the melting point of the aluminum alloy which is the material of the outer frame.

When the shutter guide rail 37 receives a flame, the aluminum member is particularly liable to be deformed. At this time, the outer frame 25 holding the shutter curtain 21 receives the load of the shutter curtain 21 and expands / melts. It is affected and deforms to open outward. When this deformation occurs, the outer plate portion 53 is released from the support for the guide rail 23 and opens to the side opposite to the guide rail 23. That is, the outer plate portion 53 opened outward with the mounting piece portion 63 as a fulcrum loses the support function for the guide rail 23.

On the other hand, the inner surface of the inner plate portion 47 in the space portion 73 facing the outer plate portion 53 is covered and supported by the support piece portion 67 of the reinforcing member 27 made of a steel material. The inner plate portion 47 is pressed from the outside on the opposite side of the shutter curtain 21 by the reinforcing member 27 made of a steel material having a melting point higher than that of aluminum, so that the inner plate portion 47 is suppressed from being deformed to the outside away from the shutter curtain 21.

As described above, in the shutter guide rail 37, the steel reinforcing member 27 having an L-shaped cross-sectional view is provided to prevent the entire outer frame 25 from opening outward. The reinforcing member 27 is fastened to the outer wall 15 via the outer frame 25, and can maintain the shape of the outer frame 25 even if the outer frame 25 is easily deformed by the influence of the flame.

Therefore, the shutter guide rail 37 is prevented from being deformed to the outside as a whole of the outer frame 25 as compared with the case where the reinforcing member 27 is not provided. That is, the shutter guide rail 37 has a simple structure in which only the reinforcing member 27 is added, and the fire prevention performance is enhanced. As a result, the entire outer frame 25 of the shutter curtain 21 is deformed outward, and the side portion 35 of the shutter curtain 21 is prevented from coming out from the slit 39 of the guide rail 23.

As a result, the fire protection structure of the shutter guide rail can delay the time until the shutter curtain 21 is released from the guide rail 23 and the sash window 17 is directly exposed to the flame.

Further, when the reinforcing member 27 is formed long along the guide rail 23, the outer plate portion 53 opens, and even if the flame invades the space portion 73, the flame directly hits the inner plate portion 47. The flame can be shielded by the support piece portion 67 of the reinforcing member 27 so as not to be present. As a result, the fire protection performance of the shutter guide rail 37 is further enhanced.

As described above, in the fire-prevention structure of the shutter guide rail, in the unique support structure for guiding the side portion 35 of the shutter curtain 21, only the important points are reinforced with the steel reinforcing member 27 to enhance the design. With a small number of parts and a simple structure, fire prevention performance can be improved without impairing weight reduction.

Further, in the fire protection structure of the shutter guide rail according to the embodiment, a plurality of reinforcing members 27 are attached along the guide rail 23 at intervals. As a result, the total weight of the reinforcing member 27 is lighter than that in the case where the reinforcing member 27 is formed in a long length over the entire length of the guide rail 23. As a result, the fire prevention performance can be improved while suppressing the increase in weight.

Further, in the fire protection structure of the shutter guide rail, when the outer frame 25 is attached to the outer wall 15, the reinforcing member 27 is fastened together with the outer frame 25 by the fixing screw 69 and fixed to the outer wall 15. Therefore, the work of independently attaching the reinforcing member 27 for enhancing the fire prevention performance to the outer wall 15 and the fixing tool are not required. As a result, it is possible to reduce the labor required for constructing the fire protection structure.

Next, the configuration according to the modified example of the above-described embodiment will be described.
FIG. 6 is a plan sectional view of a main part of the fire protection structure of the shutter guide rail according to the modified example.
In the fire protection structure of the shutter guide rail according to this modification, the support piece portion 67 of the reinforcing member 27 is previously fixed to the inner plate portion 47 of the outer frame 25 before being fastened together. The support piece portion 67 can be fixed to the inner plate portion 47 by using a rivet 75 or the like. As the material of the rivet 75, for example, SUS305 can be used.

7 (a) is a front view of the shutter guide rail according to the modified example shown in FIG. 6 in which the guide rail 23 of the fire protection structure is omitted, and FIG. 7 (b) is a sectional view taken along the line AA of (a).
In the fire protection structure of the shutter guide rail according to the modified example, the fixing piece portion 65 of the reinforcing member 27 and the mounting piece portion 63 of the outer frame 25 are provided with a screw through hole 71 through which the fixing screw 69 penetrates. .. In the reinforcing member 27, the screw through hole 71 is aligned with the screw through hole 71 of the mounting piece portion 63, and the support piece portion 67 is fixed to the inner plate portion 47 of the outer frame 25 by the rivet 75.

In the fire protection structure of the shutter guide rail according to this modification, the reinforcing member 27 is fixed in advance at a predetermined position of the outer frame 25. In the reinforcing member 27, the fixing piece portion 65 is overlapped with the mounting piece portion 63 of the outer frame 25 and fixed to the outer wall 15 by the fixing screw 69. The support piece portion 67 and the inner plate portion 47 are fixed by a rivet 75 or the like. The rivet 75 can be improved in appearance by setting the side of the inner plate portion 47 as the insertion side. As a result, the reinforcing member 27 can be fastened to the outer frame 15 by passing the fixing screw 69 through the screw through hole 71 between the fixing piece portion 65 and the mounting piece portion 63 without supporting the reinforcing member 27 by hand. Can be installed at the same time. As a result, it is possible to eliminate the trouble at the installation site for constructing the fire protection structure.

Therefore, according to the fire protection structure of the shutter guide rail according to the present embodiment, it is possible to suppress the deformation of the outer frame 25 due to the flame and improve the fire protection performance with a simple structure.

13 ... Opening 15 ... Outer wall 21 ... Shutter curtain 23 ... Guide rail 25 ... Outer frame 27 ... Reinforcing member 35 ... Side 37 ... Shutter guide rail 39 ... Slit 47 ... Inner plate 53 ... Outer plate 63 ... Mounting piece Part 65 ... Fixed piece part 67 ... Support piece part 69 ... Fixed screw

Claims (3)

A shutter curtain that moves up and down to cover the opening that opens in the outer wall on the outside of the outer wall, and
A pair of guide rails extending in the ascending / descending direction of the shutter curtain and having each side portion of the shutter curtain inserted into a slit to guide the ascending / descending, and a pair of guide rails formed in a substantially U-shaped cross-sectional view.
A mounting piece extending along the guide rail and parallel to the outer wall is fixed to the outer wall, and the tip of the outer plate portion perpendicular to the outer wall connected to the mounting piece is the guide rail rather than the shutter curtain. An aluminum outer surface that supports the outside of the guide rail and the tip of the inner plate portion that is connected to the mounting piece on the opposite side of the outer plate portion and is perpendicular to the outer wall supports the inside of the guide rail rather than the shutter curtain. Frame and
It is made of steel and has a fixing piece portion that is fixed to the outer wall together with the mounting piece portion that sandwiches the mounting piece portion, and at least the inner plate portion is at the end opposite to the outer plate portion of the fixing piece portion. A reinforcing member whose support piece, which is overlapped in parallel with a part, is bent to form an L-shape in a plan view.
It is a method of manufacturing a fireproof structure of a guide rail for a shutter provided with.
Before the reinforcing member is co-tightened to the outer wall, screw through holes are formed in the reinforcing member and the outer frame to match the screw through holes with each other, and then the support piece portion and the support piece portion and the said. The shutter is characterized in that the inner plate portion is fixed, and then the reinforcing member and the outer frame are penetrated through the respective screw through holes by the fixing screws and fixed together to the outer frame and the outer wall. How to manufacture a fireproof structure for guide rails . The method for manufacturing a fireproof structure for a shutter guide rail according to claim 1.
A method for manufacturing a fireproof structure for a shutter guide rail, wherein the reinforcing members are arranged at a plurality of locations intermittently in the extending direction of the outer frame. The method for manufacturing a fireproof structure for a shutter guide rail according to claim 2.
A guide rail for a shutter, wherein each of the plurality of reinforcing members is fastened together with the mounting piece portion to the outer wall by a fixing screw for fixing the mounting piece portion of the outer frame to the outer wall. Manufacturing method of fireproof structure.

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