JP2023167553A - Curtain wall mounting structure - Google Patents

Abstract

To provide a curtain wall mounting structure that can eliminate falling of a backing plate out of a groove.SOLUTION: In a curtain wall mounting structure 10, a bracket 4 comprises: an upper fixing piece 41; a lower fixing piece 42; and a connecting piece 43 that connects the upper fixing piece 41 and the lower fixing piece 42 and in which an insertion hole 45 is formed through which a bolt 91 that fastens the bracket 4 to a fastener 2 is inserted. The connecting piece 43 forms a groove 46 extending in the left-right direction. In the groove 46, a back plate 5 having a screw hole 51 for screwing with the bolt 91 is movably disposed in the left-right direction. The mounting structure 10 comprises a panel fall prevention material 6 as a regulating member that restricts movement of the back plate 5 beyond a predetermined amount in the left-right direction relative to the groove 46.SELECTED DRAWING: Figure 3

Description

The present invention relates to a curtain wall mounting structure for mounting a curtain wall on a building frame.

BACKGROUND ART Conventionally, a curtain wall mounting structure is known in which brackets fixed to vertical frames of a plurality of curtain wall units constituting a curtain wall are attached to fasteners fixed to a building frame (see Patent Document 1). The fastener has a plate-shaped fixing part along the expected direction of the curtain wall and a plate-shaped attachment part along the vertical direction, and the fixing part is fixed to the building frame with bolts and nuts. The bracket has a fixed part fixed to the vertical frame, a facing part facing and connected to the fastener mounting part, and a support part supported from below by the fixed fastener mounting part. The fixing portions of the bracket are formed above and below the opposing portion. The opposing portion is arranged to protrude toward the mounting portion with respect to the fixed portion of the bracket. The support part protrudes from the upper part of the fixing part of the bracket toward the mounting part and is arranged above the mounting part, and the support part has a bolt along the vertical direction that abuts the mounting part. They are screwed together.
A groove extending in the left-right direction is formed between the facing portion of the bracket and the vertical frame of the curtain wall unit, and a mounting member (back plate) having a screw hole is disposed in this groove. Further, a long hole extending in the vertical direction is formed in the mounting portion of the fastener, and an insertion hole is formed in the opposing portion of the bracket. Bolts are inserted through these elongated holes and insertion holes, and when these bolts are screwed into the threaded holes of the mounting member placed in the groove, the bracket is attached to the fastener, and the curtain wall can be installed. Configure the structure.

Japanese Patent Application Publication No. 2020-133365

By the way, in the curtain wall mounting structure described in Patent Document 1, the groove of the bracket extends in the left-right direction, so when the mounting member disposed in this groove is not screwed into the bolt, the mounting member is There is a risk of falling off from the groove in the left and right direction. For this reason, it is conceivable to prevent the mounting member from falling off by binding the opposing portion and the mounting member by passing a binding band or the like through the insertion hole and the threading hole of the mounting member in the bracket.
However, in this case, since the binding band is passed through the above-described insertion hole and threading hole, the binding band becomes an obstacle for inserting the bolt through the insertion hole and screwing it into the threading hole of the mounting member. For this reason, the binding band has to be cut and removed before the bolt is screwed into the mounting member, resulting in a situation where the mounting member may fall off from the groove in the left-right direction.

An object of the present invention is to provide a curtain wall mounting structure that can prevent the back plate from falling off from the groove.

The curtain wall mounting structure of the present invention is a curtain wall mounting structure in which a bracket fixed to the curtain wall is attached to a fastener fixed to a building frame, and the bolt fixed to the fastener is inserted into the bracket. The connecting piece has a connecting piece in which an insertion hole is formed, and the connecting piece has a groove extending in the left-right direction, and the groove has a back plate having a screw hole for screwing in the bolt. The mounting structure includes a regulating member that regulates movement of the back plate by more than a predetermined amount in the left-right direction with respect to the groove portion.

According to the present invention, it is possible to provide a curtain wall mounting structure that can prevent the back plate from falling off from the groove.

FIG. 1 is an external view showing a curtain wall according to the present invention. FIG. 1 is a longitudinal cross-sectional view showing a curtain wall mounting structure according to a first embodiment of the present invention. FIG. 1 is an enlarged vertical cross-sectional view showing the curtain wall mounting structure according to the first embodiment. FIG. 2 is an explanatory diagram showing the curtain wall mounting structure according to the first embodiment from the indoor side. FIG. 1 is a cross-sectional view showing a curtain wall mounting structure according to the first embodiment. FIG. 3 is an explanatory diagram showing a panel fall prevention material of the curtain wall mounting structure according to the first embodiment. FIG. 7 is a vertical cross-sectional view showing a curtain wall according to a second embodiment of the present invention. FIG. 7 is an explanatory diagram showing the curtain wall mounting structure according to the second embodiment from the indoor side. FIG. 7 is a vertical cross-sectional view showing a curtain wall according to a third embodiment of the present invention. FIG. 7 is an explanatory diagram showing the curtain wall mounting structure according to the second embodiment from the indoor side.

[First embodiment]
Hereinafter, a first embodiment of the present invention will be described based on the drawings.
1 to 2, a curtain wall mounting structure 10 (hereinafter referred to as the mounting structure) according to the first embodiment has a curtain wall that constitutes an outer wall surface of a building, and The structure is such that a bracket 4 fixed to a wall 3 is attached.
As shown in FIG. 2, the building frame has a floor slab 1A and a suspended ceiling 1B. As shown in FIG. 1, the curtain wall 3 is composed of curtain wall units 30 arranged vertically and horizontally. The curtain wall unit 30 includes a frame 31, a panel 32 disposed within the frame 31, and a fireproof board 33 (panel). The frame body 31 is constructed by framing an upper frame 34, a lower frame 35, a blind 36, and left and right vertical frames 37 made of extruded aluminum. The panel 32 is arranged within a frame divided by a lower frame 35, a blind 36, and left and right vertical frames 37, and in a frame divided by a top frame 34, a blind 36, and left and right vertical frames 37. The fireproof board 33 is arranged on the indoor side with respect to the panel 32 within a frame defined by the upper frame 34, the blind 36, and the left and right vertical frames 37. The curtain wall unit 30 has a bracket 4 fixed to its vertical frame 37, and is attached to the building frame 1 via the bracket 4 and fasteners 2.
In the following description, the left-right direction of the mounting structure 10 will be referred to as the X-axis direction, the vertical direction of the mounting structure 10 will be referred to as the Y-axis direction, and the expected direction of the mounting structure 10 will be referred to as the Z-axis direction. The X, Y, and Z axis directions are orthogonal to each other. Note that the building frame 1 is placed on the indoor side, and the curtain wall 3 is placed on the outdoor side.

As shown in FIGS. 3 to 5, the mounting structure 10 includes a fastener 2, a bracket 4 (4A, 4B), a back plate 5, and a panel fall prevention member 6 (regulating member). Two brackets 4 are fastened to one fastener 2. One bracket 4A is bolted to one of two curtain wall units 30 adjacent to each other in the X-axis direction, and is movable in the X-axis direction with respect to the fastener 2 in the attached state. The other bracket 4B is bolted to the other of the two curtain wall units 30 adjacent in the X-axis direction, and is immovable in the X-axis direction with respect to the fastener 2 in the attached state.

The fastener 2 has a plate-shaped fixing part 21 bolted to the building frame 1 and a plate-shaped attachment part 22 to which the bracket 4 is attached. The fixing part 21 extends along the Z-axis direction, and has a mounting part 22 continuously formed at the outdoor end thereof to have a substantially L-shaped cross section.
A long hole 23 is formed in the fixing portion 21 along the Z-axis direction. The fixing part 21 is bolted to the building frame 1 by inserting the bolt 91 through the long hole 23 into the long hole 1C formed in the building frame 1 along the X-axis direction and screwing it with a nut. ing. Note that since the elongated holes 23 and 1C are formed, the fixing position for fixing the fixing part 21 to the building frame 1 can be adjusted in the X and Z axis directions.
The attachment portion 22 is formed to extend upward from the outdoor end of the fixing portion 21 . A long hole 24 extending along the Y-axis direction is formed in the mounting portion 22, and a bolt 91 for fastening the fastener 2 and the bracket 4 is inserted through the long hole 24 so that its position can be adjusted in the Y-axis direction. .

The bracket 4A includes an upper fixed piece 41 fixed to the vertical frame 37, a lower fixed piece 42 fixed to the vertical frame 37 at a position below the upper fixed piece 41, and an upper fixed piece. 41 and a lower fixing piece 42, and a support part 44 supported by the mounting part 22.
The upper fixing piece part 41 and the lower fixing piece part 42 are formed in a plate shape along the Y-axis direction, and each has a hole through which a bolt 92 is inserted. The bolt 92 is inserted through the holes of the upper fixing piece 41 and the lower fixing piece 42 and the vertical frame 37, and is screwed and fixed to the back plate material 38 disposed within the vertical frame 37. Thereby, the upper fixed piece part 41 and the lower fixed piece part 42 are fixed to the vertical frame 37 with the bolts 92.
The connecting piece 43 projects toward the indoor side (toward the building frame 1) with respect to the upper fixing piece 41 and the lower fixing piece 42. The connecting piece 43 has an insertion hole 45 through which the bolt 91 is inserted, and a groove 46 on the outdoor side thereof. The insertion hole 45 is formed in a horizontally long elliptical shape with a distance from the bolt 91 in the Y-axis direction. The groove portion 46 includes an outdoor surface 431 along the Y-axis direction that constitutes the indoor side surface of the connecting piece portion 43, a pair of side surfaces 432 along the Z-axis direction that are continuous with the upper and lower edges of the outdoor surface 431, 433. Note that the lower end of the upper fixing piece 41 protrudes further downward than the side surface 432 , and the upper end of the lower fixing piece 42 protrudes upward more than the side surface 433 . The connecting piece 43 has a substantially U-shaped cross section, and both ends of the groove 46 in the X-axis direction are open.
The support section 44 includes a support section 441 that protrudes toward the indoor side from the upper end of the upper fixed section 41 and has a hole through which a bolt 93 (to be described later) is inserted, and a back plate material 442 that is held by the support section 441. and a bolt 93 that is inserted into the support piece 441 from above and screwed into the back plate material 442. This support portion 44 is supported by the fastener 2 by the tip of the bolt 93 coming into contact with the upper edge of the attachment portion 22 . The vertical position of the bracket 4 relative to the fastener 2 can be adjusted by rotating the bolt 93. Note that a nut 9A disposed above the support piece portion 441 is screwed onto the bolt 93.
The bracket 4B has a similar structure to the bracket 4A, but differs in structure from the bracket 4A in that a circular insertion hole 45B is formed instead of the elliptical insertion hole 45.

The back plate 5 is formed into a rectangular plate shape, and has a screw hole 51 into which a bolt 91 is screwed. The back plate 5 has a vertical dimension equivalent to the vertical dimension of the groove 46, a width smaller than the width of the groove 46 in the X-axis direction, and an expected dimension of the groove 46 in the Z-axis direction. It has an expected dimension smaller than that, and is disposed in the groove portion 46 so as to be slidable in the X-axis direction.

As shown in FIG. 6, the panel fall prevention material 6 is formed into a plate shape extending in the X-axis direction, and has a base end 61 bolted to the fireproof board 33, a connecting piece 43, and a back plate 5. It has a fixing part 62 between which the bolt 91 is inserted, a continuous part 63 that continues the base end part 61 and the fixing part 62, and a distal end part 64 that continues to the fixing part 62.
A hole 611 into which a bolt 94 is inserted is formed in the base end portion 61 . The panel fall prevention material 6 is attached to the fireproof board 33 by screwing bolts 94 inserted into the holes 611 into the fireproof board 33 .
The continuous portion 63 is bent toward the indoor side with respect to the base end portion 61 and bent toward the outdoor side (curtain wall 3 side) with respect to the fixed portion 62, and as shown in FIG. A portion is arranged to face the back plate 5 in the X-axis direction. The distance in the X-axis direction between the opposing portion of the continuous portion 63 and the attached back plate 5 is smaller than the width of the back plate 5. Therefore, when the back plate 5 is not attached, even if the back plate 5 slides in the X-axis direction, the continuous portion 63 comes into contact with the back plate 5, so that the back plate 5 overlaps the groove portion 46 in the X-axis direction. This allows the back plate 5 to be prevented from falling off from the groove portion 46 toward the continuous portion 63 side.
The fixing part 62 is sandwiched between the connecting piece part 43 and the back plate 5 in the Z-axis direction, and has a hole 621 through which a bolt 91 is inserted. When the panel fall prevention material 6 is to be attached to the bracket 4A, the hole 621 is formed in an elliptical shape to match the shape of the insertion hole 45. Further, when the panel fall prevention material 6 is to be attached to the bracket 4B, the hole 621 may be formed in a perfect circular shape to match the shape of the insertion hole 45B, but it is not formed in the aforementioned elliptical shape. It's okay. The panel fall prevention member 6 is fastened together with the fastener 2, the bracket 4, and the back plate 5 by screwing bolts 91 and the back plate 5. Therefore, the panel fall prevention material 6 connects the fireproof board 33 to the bracket 4 and the fastener 2, reducing the possibility that the fireproof board 33 will come off from the frame 31 and fall.
The tip portion 64 is bent toward the outdoor side with respect to the fixing portion 62, and at least a portion thereof is disposed at a position facing the back plate 5 in the X-axis direction. The back plate 5 is arranged between the tip portion 64 and the continuous portion 63 in the X-axis direction. The distance in the X-axis direction between the tip portion 64 and the back plate 5 in the attached state is smaller than the width dimension of the back plate 5. Therefore, when the back plate 5 is not attached, even if the back plate 5 slides in the X-axis direction, the tip 64 comes into contact with the back plate 5, so that the back plate 5 overlaps the groove 46 in the X-axis direction. This allows the back plate 5 to be prevented from falling off from the groove portion 46 toward the tip portion 64 side.
This panel fall prevention material 6 has the above-described continuous portion 63 and tip portion 64, and is configured as a regulating member that regulates movement of the back plate 5 relative to the groove portion 46 by a predetermined amount or more.

The procedure for attaching the curtain wall 3 to the building frame 1 using the above-described attachment structure 10 is as follows.
First, the upper fixing piece 41 and the lower fixing piece 42 of the bracket 4 are bolted to the vertical frame 37 of the curtain wall unit, and the panel fall prevention material 6 is bolted to the fireproof board 33. On the other hand, the fixing portion 21 of the fastener 2 is bolted to the building frame 1.
Next, the curtain wall unit 30 is placed in a predetermined position relative to the building frame 1, and bolts 91 are used to connect the mounting portion 22 of the fastener 2, the connecting piece 43 of the bracket 4, the fixing portion 62 of the panel fall prevention material 6, and the back plate. 5 will be concluded. Here, the back plate 5 can slide by a predetermined amount in the X-axis direction depending on the inclination of the bracket 4, but if the back plate 5 slides by more than a predetermined amount, the continuous part 63 or the tip part 64 of the panel fall prevention material 6 This can be controlled by coming into contact with the back plate 5, and therefore the back plate 5 can be prevented from falling off from the groove portion 46.
Further, when the bracket 4 is attached to the fastener 2, the bolt 93 of the support portion 44 comes into contact with the upper edge of the attachment portion 22, so that the bracket 4 is supported by the fastener 2.
In addition, in the mounting structure 10, the bracket 4B is fixedly attached to the fastener 2 in the X-axis direction, but the bracket 4A is attached movably to the fastener 2 in the X-axis direction, so that the frame body The bracket 4A can move in the X-axis direction in response to thermal elongation in the X-axis direction that may occur in the bracket 31.

[Second embodiment]
A second embodiment of the present invention will be described below based on the drawings.
In FIGS. 7 and 8, a curtain wall mounting structure 10B according to the second embodiment has approximately the same structure as the mounting structure 10 according to the first embodiment, but the tip of the panel fall prevention material 6 is bent. The screw 7 as a shaft member is screwed into the connecting piece 43 and is arranged to protrude from the outdoor surface 431 to the outdoor side (back plate 5 side) to prevent the back plate 5 and panel from falling. The structure differs from the mounting structure 10 in that the material 6 is formed with a recess 52 in which the tip of the screw 7 is placed.
The upper portion of the connecting piece portion 43 along the Y-axis direction is counterbore-processed from the indoor side, and the screw 7 is passed through the counterbore-processed portion in the Z-axis direction.
The recess 52 of the back plate 5 has a pair of side surfaces 521 facing each other in the X-axis direction and a bottom surface 522 along the X-axis direction, and is open at an end in the Z-axis direction. The side surface 521 is along the Y-axis direction. The dimension obtained by subtracting the diameter dimension of the screw 7 from the dimension of the pair of side surfaces 521 in the X-axis direction corresponds to a distance that allows sliding movement of the back plate 5 in the X-axis direction. Note that a concave portion 52 is similarly formed in the fixing portion 62 of the panel fall prevention member 6.
In this mounting structure 10B, the screw 7 is configured as a regulating member, and when the back plate 5 slides in the X-axis direction, the tip of the screw 7 comes into contact with the side surface 521 of the recess 52 of the back plate 5. 5 is restricted from sliding beyond a predetermined amount, and the back plate 5 can be prevented from falling off from the groove 46.

[Third embodiment]
A third embodiment of the present invention will be described below based on the drawings.
In FIGS. 9 and 10, a curtain wall mounting structure 10C according to the third embodiment has approximately the same structure as the mounting structure 10 according to the first embodiment, but the tip of the panel fall prevention material 6 is bent. The mounting structure 10 is different in that the first restrictor 8 and the second restrictor 9 are attached to a pair of side surfaces 401 and 402 that form the left and right openings of the groove 46 of the bracket 4. It has a different composition.
The first restrictor 8 includes a screw 83 having a head 81 and a shaft 82, and a washer 84 inserted into the shaft 82, and the shaft 82 is screwed into a hole 403 formed in a side surface 401. By matching, it can be detachably attached to the bracket 4. The hole 403 is formed at a position where as little force as possible is applied to the bracket 4 from the curtain wall 3, and in this embodiment, the hole 403 is formed at a position at the lower end of the upper fixing piece portion 41. The upper fixing piece 41 is bolted to the vertical frame 37 at a position above the hole 403. The washer 84 has a diameter larger than that of the head 81.
The head 81 of the screw 83 and the washer 84 are arranged at a position where at least a portion of each overlaps with the back plate 5 in the X-axis direction.
Note that the second restrictor 9 is configured similarly to the first restrictor 8 and is attached to the side surface 402 of the bracket 4, and at least a portion of each of the head 81 and washer 84 of the second restrictor 9 is It is arranged at a position overlapping the back plate 5 in the X-axis direction.
In this mounting structure 10C, the first restricting tool 8 and the second restricting tool 9 constitute a restricting member, and when the back plate 5 slides in the X-axis direction, the first restricting tool 8 and the second restricting tool 9 Since one of the washers 84 comes into contact with the back plate 5, sliding movement of the back plate 5 by more than a predetermined amount is restricted, and it is possible to suppress the back plate 5 from falling out of the groove portion 46.

[Modified example]
In the first, second, and third embodiments, two brackets 4A, 4B are attached to one fastener 2, but only one of the brackets 4A, 4B may be attached. An elliptical insertion hole 45 may be formed in both of the brackets 4A and 4B, and if there is no need to consider thermal expansion of the curtain wall 3 in the An insertion hole 45B may be formed.
In the second and third embodiments, the panel fall prevention member 6 is attached, but this configuration may be omitted.
In the third embodiment, the first restrictor 8 and the second restrictor 9 have a screw 83 and a washer 84, but the washer 84 may be omitted. In this case, the head 81 of the screw 83 is arranged to abut against the sliding back plate 5 in the X-axis direction.

[Summary of the invention]
The curtain wall mounting structure of the present invention is a curtain wall mounting structure in which a bracket fixed to the curtain wall is attached to a fastener fixed to a building frame, and the bolt fixed to the fastener is inserted into the bracket. The connecting piece has a connecting piece in which an insertion hole is formed, and the connecting piece has a groove extending in the left-right direction, and the groove has a back plate having a screw hole for screwing in the bolt. The mounting structure includes a regulating member that regulates movement of the back plate by more than a predetermined amount in the left-right direction with respect to the groove portion.
According to the curtain wall mounting structure of the present invention, since the above-mentioned regulating member is configured, even when there is no binding band that is passed through the insertion hole of the bracket and the threaded hole of the back plate to bind the back plate to the bracket, The state in which the back plate is disposed in the groove can be maintained, thereby preventing the back plate from falling out of the groove.

In the curtain wall mounting structure of the present invention, the curtain wall has a curtain wall unit having a frame and a panel disposed within the frame, and a panel fall prevention member extending in the left-right direction is attached to the panel. The panel fall prevention material has a base end portion fixed to the panel, and a fixing portion through which the bolt is inserted between the connection piece portion and the back plate, and the panel fall prevention material At least a portion of the panel may be disposed at a position facing the back plate in the left-right direction, and the panel fall prevention material may be configured as the regulating member.
According to such a configuration, for example, even if the back plate moves in the left-right direction along the groove, the back plate comes into contact with at least a portion of the panel fall prevention material, so that the back plate is moved in the left-right direction. Movement can be regulated. Furthermore, since the panel fall prevention material is configured as a regulating member, there is no need to separately provide a regulation member in addition to the panel fall prevention material, and the configuration can be simplified. Further, there is no need to process the back plate in order to construct the regulating member.

In the curtain wall mounting structure of the present invention, the back plate has a pair of side surfaces facing each other in the left-right direction, and a recess is formed that opens on the connecting piece side, and the connecting piece has a shaft member. The shaft member may be provided so as to protrude toward the back plate, and a tip of the shaft member may be disposed in the recess, and the regulating member may be constituted by the shaft member.
According to such a configuration, for example, even if the back plate moves in the left-right direction along the groove, the side surfaces of the recess of the back plate abut against the shaft member of the connecting piece in the left-right direction, so that the left and right movement of the back plate is prevented. Directional movement can be restricted.

In the curtain wall mounting structure of the present invention, the bracket has a pair of side surfaces in which an opening in the left-right direction of the groove is formed, and a first restrictor is attached to one of the pair of side surfaces. a second restrictor is attached to the other side of the pair of side surfaces, the first restrictor is disposed at a position where at least a portion thereof overlaps the back plate in the left-right direction; The second restrictor may be arranged at a position where at least a portion of the second restrictor overlaps the back plate in the left-right direction, and the restrictor may be constituted by the first restrictor and the second restrictor.
According to such a configuration, for example, even if the back plate moves in the left-right direction along the groove, one of the first restrictor and the second restrictor comes into contact with the back plate in the left-right direction, and the back plate is moved in the left-right direction. can restrict movement in the left and right direction. Further, there is no need to process the back plate in order to construct the regulating member.

In the curtain wall mounting structure of the present invention, the curtain wall has two curtain wall units adjacent to each other in the left and right direction, two brackets are attached to one of the fasteners, and one of the two brackets is attached to the fastener. The bracket is constituted by the bracket according to any one of claims 1 to 4, and has a shape in which the insertion hole is spaced from the bolt in the left-right direction, and the one bracket is , the bracket may be attached to the fastener so as to be movable in the left-right direction, and the other bracket of the two brackets may be attached to the fastener in a fixed manner in the left-right direction.
According to such a configuration, the insertion hole of one bracket is shaped to be spaced from the bolt in the left and right direction, and the back plate into which this bolt is screwed moves in the left and right direction with respect to the groove mentioned above. Therefore, even if the curtain wall is misaligned in the left-right direction relative to the building frame due to thermal expansion, the bracket will be displaced relative to the fastener, allowing for thermal expansion of the curtain wall. I can do it. Also in the curtain wall mounting structure configured in this manner, since one of the brackets has the above-mentioned regulating portion, it is possible to prevent the back plate from falling off in the left-right direction from the groove portion as described above.

1... Building frame, 10, 10B, 10C... Mounting structure, 1A... Floor slab, 1B... Suspended ceiling, 1C, 23, 24... Long hole, 2... Fastener, 21... Fixed part, 22... Mounting part, 3... Curtain Wall, 30... Curtain wall unit, 31... Frame, 32... Panel, 33... Fireproof board (panel), 34... Upper frame, 35... Lower frame, 36... Blank, 37... Vertical frame, 38... Back board material, 4 (4A, 4B)... Bracket, 401, 402, 521... Side surface, 403, 611, 621... Hole, 41... Upper fixing piece part, 42... Lower fixing piece part, 43... Connection piece part, 431... Outdoor surface, 432, 433... Side surface, 44... Support part, 441... Support piece part, 442... Back plate material, 45, 45B... Insertion hole, 46... Groove part, 5... Back plate, 51... Screwing hole, 52... Recessed part, 522... Bottom surface, 6...Panel fall prevention material (regulating member), 61...base end, 62...fixing part, 63...continuous part, 64...tip part, 7...screw (shaft member, regulating member), 8...first regulation Tool (regulating member), 81... Head, 82... Shaft, 83... Screw, 84... Washer, 9... Second regulating tool (regulating member), 91, 92, 93, 94... Bolt, 9A... Nut.

Claims (5)

A curtain wall mounting structure in which a bracket fixed to the curtain wall is attached to a fastener fixed to a building frame,
The bracket has a connecting piece portion in which an insertion hole is formed through which a bolt fixed to the fastener is inserted;
The connecting piece portion forms a groove portion extending in the left-right direction,
A back plate having a screw hole for screwing into the bolt is disposed in the groove so as to be movable in the left-right direction,
The mounting structure for a curtain wall is characterized in that the mounting structure includes a regulating member that regulates movement of the back plate by more than a predetermined amount in the left-right direction with respect to the groove. The curtain wall mounting structure according to claim 1,
The curtain wall has a curtain wall unit having a frame and a panel disposed within the frame,
A panel fall prevention material extending in the left and right direction is attached to the panel,
The panel fall prevention material has a base end portion fixed to the panel, and a fixing portion through which the bolt is inserted between the connecting piece portion and the back plate,
At least a portion of the panel fall prevention material is disposed at a position facing the back plate in the left-right direction,
A curtain wall mounting structure characterized in that the panel fall prevention material is configured as the regulating member. The curtain wall mounting structure according to claim 1,
A shaft member is provided on the connecting piece portion so as to protrude toward the back plate,
A pair of side surfaces are formed on the back plate and are opposed in the left-right direction with the shaft member in between,
The curtain wall mounting structure, wherein the regulating member is composed of the shaft member. The curtain wall mounting structure according to claim 1,
The bracket has a pair of side surfaces in which an opening in the left and right direction of the groove is formed,
A first restrictor is attached to one side of the pair of side surfaces,
A second restrictor is attached to the other side of the pair of side surfaces,
The first restrictor is arranged at a position where at least a portion thereof overlaps the back plate in the left-right direction,
The second restrictor is arranged at a position where at least a portion thereof overlaps the back plate in the left-right direction,
The curtain wall mounting structure is characterized in that the regulating member is constituted by the first regulating tool and the second regulating tool. The curtain wall mounting structure according to any one of claims 1 to 4,
The curtain wall has two curtain wall units adjacent to each other in the left and right direction,
two brackets are attached to one said fastener;
One of the two brackets is configured with the bracket according to any one of claims 1 to 4, and has a shape in which the insertion hole is spaced from the bolt in the left-right direction. is,
The one bracket is attached to the fastener so as to be movable in the left and right direction,
A curtain wall mounting structure characterized in that the other bracket of the two brackets is fixedly attached to the fastener in the left-right direction.

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