JP2022098334A - Curtain wall fixing structure - Google Patents

Abstract

To provide a curtain wall fixing structure capable of maintaining sufficient strength even when receiving external force.SOLUTION: A curtain wall fixing structure 10 fixes a horizontal frame material 16b of a curtain wall 14 to a fastener 34 mounted on a PC-plate 20b of a building, and consists of a projecting piece 30b provided on the horizontal frame material 16b and projecting in a depth direction with a bolt hole 30ba, a fixing bolt 32 inserted into a bolt hole 30ba along a lateral direction, the bolt hole 30ba having a female screw groove, and a female screw part 66. The fastener 34 has a horizontal column body 44 provided with a bolt insertion part 58 into which the fixing bolt 32 is inserted. The fastener 34 and the projecting piece 30b are fixed by the fixing bolt 32, the bolt hole 30ba having a female screw groove, and a female screw part 66. The female screw part 66 is formed by threading the bolt insertion part 58 with the fixing bolt 32.SELECTED DRAWING: Figure 3

Description

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

Patent Document 1 discloses a structure in which a curtain wall constituting an outer wall of a building is fixed to a skeleton. In the fixed structure of Patent Document 1, a hook-shaped upper holding portion is provided on the curtain wall, and the upper holding portion is hooked on the flange on the skeleton side at the construction site, and a part of the curtain wall and the flange are screwed. Is screwed in.

Japanese Unexamined Patent Publication No. 2004-100189

In the fixing structure described in Patent Document 1, a screw inserts a flange and a part of a curtain wall in a prospective direction and is screwed. However, since the area around the flange is narrow and there are restrictions on working at the construction site, small screws are used. Then, when an external force in the left-right direction (including an external force due to vibration and a static external force) acts on the curtain wall, a local shear stress is applied to the screw, and there is a concern that the life of the screw is shortened.

The present invention has been made in view of the above problems, and an object of the present invention is to provide a curtain wall fixing structure in which sufficient strength is maintained even when an external force is applied.

In order to solve the above-mentioned problems and achieve the object, the curtain wall fixing structure according to the present invention is a curtain wall fixing structure for fixing the frame material of the curtain wall to the fastener attached to the frame of the building. A projecting piece having a bolt hole protruding from the frame material and having a fixing bolt inserted therein, and a fixing bolt inserted into the bolt hole along the left-right direction or the up-down direction in the front view of the curtain wall. It has two or more female threaded portions that are screwed into the fixing bolt, the fastener has a pillar body having a bolt insertion portion through which the fixing bolt is inserted, and the fastener and the projecting piece are the same. It is characterized in that it is fixed by a fixing bolt and the female screw portion.

In the curtain wall fixing structure according to the present invention, when an external force in the extending direction of the fixing bolt acts, tensile stress and compressive stress act on the fixing bolt, but shear stress does not act. The fixing bolts are resistant to tensile and compressive stresses and maintain sufficient strength.

It is a front view which looked at a part of the building which has the curtain wall fixing structure which concerns on embodiment of this invention from the indoor side. FIG. 1 is a vertical cross-sectional view taken along the line II-II in FIG. It is a perspective view of the curtain wall fixing structure and its peripheral part in a building. It is a front view of the curtain wall fixing structure. FIG. 4 is a vertical cross-sectional view taken along the line V to V in FIG. FIG. 4 is a vertical cross-sectional view taken along the line of VI to VI in FIG. It is a front view of the curtain wall fixing structure which concerns on the 1st modification. It is a front view of the curtain wall fixing structure which concerns on the 2nd modification.

Hereinafter, embodiments of the curtain wall fixing structure according to the present invention will be described in detail with reference to the drawings. The present invention is not limited to this embodiment.

FIG. 1 is a front view of a part of a building 12 provided with a curtain wall fixing structure 10 according to an embodiment of the present invention as viewed from the indoor side. FIG. 2 is a vertical cross-sectional view taken along the line II to II in FIG. The curtain wall fixing structure 10 fixes the curtain wall 14 to the PC plate 20b, which is the frame of the building 12.

First, the building 12 will be described.
As shown in FIGS. 1 and 2, the building 12 has an outer wall formed by arranging a plurality of curtain walls 14 having the same configuration side by side between left and right mullion (not shown). .. Each curtain wall 14 constituting the outer wall includes a face material 18 inside the frame body 16. The frame body 16 has a rectangular shape composed of upper and lower horizontal frame materials (frame materials) 16a and 16b and left and right vertical frame materials 16c and 16c.

In the present application, the prospective direction means the indoor / outdoor direction of the building 12 (indicated by an arrow Z in the figure; the vertical direction of the paper surface in FIG. 1). The prospective surface is a surface that extends along the prospective direction. The finding direction is a direction orthogonal to the prospective direction, and in the case of a vertically long vertical frame member 16c or the like, it means a left-right direction (direction indicated by an arrow X in the figure) orthogonal to the longitudinal direction thereof, and is a left-right direction. In the case of a long upper frame 16a or the like, it means a vertical direction (direction indicated by an arrow Y in the figure) orthogonal to the longitudinal direction thereof. The finding surface is a surface along the finding direction.

Further, the inside (inner circumference) of the frame-shaped member means, for example, a portion inside the frame of the frame body 16. The outside (outer circumference) of the frame-shaped member means, for example, an outer portion of the frame 16 fixed to the building frame. Further, the direction from the outside to the inside of the frame-shaped member is called the inside of the frame, and the direction from the inside to the outside of the frame-shaped member is called the outside of the frame.

The plurality of curtain walls 14 are provided so as to close the openings 20c between the upper and lower PC plates (frames) 20a and 20b, respectively. The PC plates 20a and 20b are outer wall members made of precast concrete. The upper part of the curtain wall 14 is fixed to the PC plate 20a with a pair of fixing structures 22, the lower left side is fixed to the PC plate 20b by the curtain wall fixing structure 10, and the lower right side is fixed to the fixing structure 11. ..

The horizontal frame members 16a and 16b and the vertical frame members 16c and 16c are extruded profiles formed of a metal such as an aluminum alloy, respectively. The building 12 is provided with a slab (framework) 28 that is the foundation of the floor and ceiling. The curtain wall 14 may be fixed to the slab 28 by the fixing structures 10, 11 and 22. The curtain wall fixing structure 10, the fixing structure 11 and the fixing structure 22 have different structures. In this application, the curtain wall fixing structure 10 will be mainly described.

Next, the curtain wall fixing structure 10 will be described.
FIG. 3 is a perspective view of the curtain wall fixing structure 10 and its peripheral portion in the building 12. FIG. 4 is a front view of the curtain wall fixing structure 10. FIG. 5 is a vertical cross-sectional view taken along the line V to V in FIG. FIG. 6 is a vertical sectional view taken along the line of VI to VI in FIG. In FIG. 4, the external force F described later is conceptually indicated by an arrow.

The curtain wall fixing structure 10 has a fixing angle 30, a fixing bolt 32, a fastener 34, and a slider wall portion 60. The fixing bolt 32 is a moderately thick bolt. The fixed angle 30 is a metal member (for example, a steel material) provided on the finding surface 16ba on the indoor side of the horizontal frame material 16b in the curtain wall 14, and has an appropriate thickness and strength. The fixed angle 30 is an L-shaped member including a mounting piece 30a to be attached to the finding surface 16ba and a protruding piece 30b projecting toward the indoor side. The mounting piece 30a is fixed to the finding surface 16ba by two angle mounting bolts 40, 40. The means for fixing the mounting piece 30a to the finding surface 16ba may be an appropriately strong means other than the angle mounting bolt 40.

The mounting piece 30a may be fixed to the finding surface 16ba by fixing the curtain wall 14 to the cross member in advance before mounting the curtain wall 14 on the skeleton. Therefore, there are no particular space restrictions on the locations where the angle mounting bolts 40 and 40 are mounted, and mounting is easy, and the angle mounting bolts 40 having a moderately large diameter and high strength can be applied. Further, since the finding surface 16ba is long in the left-right direction, the mounting piece 30a has almost no restrictions on the dimensions in the left-right direction, and two angle mounting bolts 40, 40 can be provided in parallel in the left-right direction. .. Depending on the strength condition, the angle mounting bolt 40 may be one or three or more. A back plate 41 (see FIG. 5) may be provided on the back side of the finding surface 16ba to which the fixed angle 30 is attached.

The projecting piece 30b is bent 90 degrees from the mounting piece 30a and projects inward so as to form a vertical surface. A bolt hole 30ba through which the fixing bolt 32 is inserted is formed in the central portion of the projecting piece 30b. The bolt hole 30ba is formed with a female thread groove (female thread portion) into which the fixing bolt 32 can be screwed. The fixing bolt 32 extends in the left-right direction through the bolt hole 30ba. The mounting piece 30a may be formed so as to be inserted from the bolt hole 30ba so that the fixing bolt 32 extends in the left-right direction, and does not necessarily have to be bent 90 degrees from the mounting piece 30a.

The fastener 34 includes a pedestal portion 42 attached to the upper surface 20ba of the PC plate 20b, a horizontal prism (pillar) 44 protruding from the outdoor edge of the pedestal 42 to the inside of the frame (upper side in this case), and the horizontal pillar 44. It has a slider protrusion 46 that branches from and further protrudes inside the frame (in this case, the upper side). The pedestal portion 42, the horizontal column body 44, and the slider protrusion 46 have the same length in the left-right direction. The horizontal column 44 and the slider protrusion 46 extend in the left-right direction and are parallel to each other in the prospective direction.

An embedded plate 48 is embedded and reinforced in the upper surface 20ba of the PC plate 20b. The pedestal portion 42 is fixed to the embedded plate 48 and the upper surface 20ba via the height adjusting liner 50. One or more height adjusting liners 50 are provided between the pedestal portion 42 and the embedding plate 48, if necessary. By interposing the height adjusting liner 50, the fastener 34 can be adjusted in the height direction. The height adjusting liner 50 may be omitted.

The pedestal portion 42 is provided with two elongated holes 52 that are long in the prospective direction, and is fixed to the PC plate 20b by a fastener fixing bolt 54 that inserts the elongated holes 52. The two fastener fixing bolts 54 are arranged side by side in the left-right direction. The elongated hole 52 and the fastener fixing bolt 54 allow the fastener 34 to be positioned in the prospective direction.

A knurl extending in the left-right direction is formed on the entire surface of the upper surface 42a of the pedestal portion 42. A washer 56 is provided between the upper surface 42a and the head of the fastener fixing bolt 54. A knurl similar to the upper surface 42a is formed on the lower surface of the washer 56. The fastener 34 is prevented from being displaced in the prospective direction by engaging the knurls of the upper surface 42a and the washer 56 with each other.

The cross-section 44 has a C-shaped cross section, and a bolt insertion portion 58 that opens inside the frame (upper side in this case) is formed. In the state before assembling the curtain wall fixing structure 10, the cross section of the space portion formed by the bolt insertion portion 58 is set to be slightly smaller than the cross section of the male screw portion 32a of the fixing bolt 32.

The bolt insertion portion 58 is a portion through which the fixing bolt 32 is inserted. The term "insertion" for the bolt insertion portion 58 and the bolt insertion portion 58B (see FIG. 8) in the present application has a broad meaning in which the fixing bolt 32 is inserted, and includes a case of fitting and a case of screwing while threading. .. The fixing bolt 32 is screwed into the bolt insertion portion 58 while being "threaded". Further, although the case of the bolt insertion portion 58B described later corresponds to "fitting", the hole diameter may be set based on a general fitting tolerance.

The slider protrusion 46 is arranged on the outdoor side of the horizontal pillar 44 and projects to the inside of the frame (upper side in this case). The slider protrusion 46 is a portion inserted into the slider groove 62 of the slider wall portion 60, which will be described later. The tip portion 46a of the slider protrusion 46 has a convex arc shape in a vertical cross-sectional view (see FIG. 6) and is slightly bulged in the prospective direction.

In the fastener 34, at least the bolt insertion portion 58 is made of a softer material than the fixing bolt 32. The fastener 34 is an extruded profile made of a metal such as an aluminum alloy.

A slider wall portion 60 projecting to the indoor side is provided on the finding surface 16ba of the horizontal frame member 16b in the curtain wall 14. The slider wall portion 60 is formed with a slider groove 62 that opens to the outside of the frame (lower side in this case). The cross section of the slider wall portion 60 is U-shaped. The slider wall portion 60 is integrally extruded from the horizontal frame member 16b and is formed over the entire width of the horizontal frame member 16b, but a notch 60a is partially formed. The notch 60a is provided with a fixed angle 30.

The slider protrusion 46 is inserted into the slider groove 62 to guide the horizontal frame member 16b in the left-right direction. As shown in FIG. 6, the maximum width portion 46aa of the tip portion 46a of the slider protrusion 46 is in contact with the outdoor side surface 62a and the indoor side surface 62b of the slider groove 62, and the horizontal frame member 16b is positioned in the prospective direction and left and right. It can be slid in the direction without rattling. Since the tip portion 46a has a convex arc shape, the slider protrusion 46 can be easily fitted into the slider groove 62, and a gap is unlikely to occur.

In the present embodiment, the tip portion 46a of the slider protrusion 46 and the top surface 62c of the slider groove 62 are in contact with each other, but a gap may be provided between the two. When a gap is provided between the tip portion 46a and the top surface 62c, the positioning of the curtain wall 14 in the height direction is performed, for example, by the fixing structure 22 described above.

The construction procedure for attaching the curtain wall 14 to the building 12 will be described.
At the stage before the construction of attaching the curtain wall 14 to the building 12, the fixed angle 30 is fixed in advance to the horizontal frame member 16b of the curtain wall 14. As described above, the slider wall portion 60 is integrally formed with the horizontal frame member 16b.

In the construction of attaching the curtain wall 14 to the building 12, the fastener 34 is first fixed to the PC plate 20b, which is the skeleton (see FIG. 4). The fastener 34 is adjusted by using the height adjusting liner 50 so as to have a specified height. Further, the fastener 34 is adjusted by the elongated hole 52 and the fastener fixing bolt 54 so as to be in a predetermined position in the prospective direction.

Then, the curtain wall 14 is temporarily arranged so that the slider protrusion 46 of the fastener 34 is inserted into the slider groove 62 of the slider wall portion 60. Further, the curtain wall 14 is adjusted to a predetermined position in the left-right direction by a predetermined means. At this time, since the slider protrusion 46 is inserted into the slider groove 62 without a gap, the curtain wall 14 can slide in the left-right direction in an appropriate and stable manner. The curtain wall 14 positioned to the left and right is temporarily fixed by a predetermined means.

After that, the fixing bolt 32 is screwed into the bolt hole 30ba of the protruding piece 30b from the right to the left in FIG. A washer 64 may be inserted between the head 32b of the fixing bolt 32 and the projecting piece 30b. The male screw portion 32a of the fixing bolt 32 passes through the bolt hole 30ba and reaches the horizontal pillar 44 of the fastener 34. The position of the fastener 34 is adjusted, and the fixing bolt 32 and the bolt insertion portion 58 are coaxial with each other.

When the fixing bolt 32 is further threaded, the male threaded portion 32a threads the bolt insertion portion 58 to form the female threaded portion 66. As a result, an independent part as a female threaded portion into which the male threaded portion 32a is screwed is not required, and the number of parts can be reduced. The threaded female threaded portion 66 is naturally screwed into the male threaded portion 32a. The bolt insertion portion 58 is made of a softer material than the fixing bolt 32, and has a C-shaped cross section and has an opening, so that threading is easy. However, depending on the design conditions, the bolt insertion portion 58 may be a cylindrical body without an opening.

When the head 32b reaches a position where it comes into contact with the projecting piece 30b via the washer 64, the male threaded portion 32a penetrates into the bolt insertion portion 58 appropriately deeply, and a corresponding deep female threaded portion 66 is formed.

In this way, the protruding piece 30b of the horizontal frame member 16b and the fastener 34 fixed to the PC plate 20b are formed with a fixing bolt 32 and two female threaded portions (that is, a bolt hole 30ba in which a female threaded groove is formed and a female threaded portion 66). It is fixed via the horizontal column 44). In addition, another nut may be provided on the male screw portion 32a of the fixing bolt 32 to more firmly fix the protruding piece 30b or the horizontal prism 44 in a so-called double nut type. In this way, the protruding piece 30b and the fastener 34 can be fixed by the fixing bolt 32 and two or more female threaded portions.

In the constructed curtain wall fixing structure 10, when an external force F in the left-right direction (long direction of the cross member) acts on the curtain wall 14, tensile stress and compressive stress act on the fixing bolt 32, but shear stress acts. do not do. The fixing bolt 32 is resistant to tensile and compressive stresses and maintains sufficient strength. The female screw portion 66 can be formed to be appropriately deep, and the female screw portion 66 and the horizontal column 44 are not damaged by the external force F. Further, since the peripheral portions of the fixing angle 30 and the fastener 34 have few space restrictions, it is possible to increase the diameter of the fixing bolt 32 to further increase the strength as needed.

When an external force F acts, shear stress acts on the angle mounting bolt 40 that fixes the fixing angle 30 to the horizontal frame member 16b. However, the peripheral portion of the fixed angle 30 has few space restrictions, and it can be attached to the horizontal frame member 16b not at the construction site but in an environment suitable for manufacturing. A plurality of them can be provided, and the angle mounting bolt 40 can maintain sufficient strength.

FIG. 7 is a front view of the curtain wall fixing structure 10A according to the first modification. FIG. 8 is a front view of the curtain wall fixing structure 10B according to the second modification. In each modification, the same components as described above are designated by the same reference numerals, and detailed description thereof will be omitted.

As shown in FIG. 7, in the curtain wall fixing structure 10A, a bolt hole 30Aba is formed in the protruding piece 30b. In the above example, the bolt hole 30ba has a female thread groove, whereas the bolt hole 30Aba has a slightly larger diameter than the male threaded portion 32a of the fixing bolt 32, so that the male threaded portion 32a can be fitted. There is. Further, a nut (female threaded portion) 68 is screwed into the male threaded portion 32a between the protruding piece 30b and the horizontal prism 44.

When applying the curtain wall fixing structure 10A, first, while occupying the fixing bolt 32, the fixing angle 30 is displaced to the left side to adjust the position, and then the nut 68 is tightened to the right side as shown by the arrow, and the washer 64. The protruding piece 30b can be sandwiched and fixed by the head 32b and the nut 68 via the head 32b. When such a curtain wall fixing structure 10A is used, the horizontal frame member 16b and the fastener 34 are fixed via the head 32b, the male screw portion 32a, and the nut 68.

As shown in FIG. 8, in the curtain wall fixing structure 10B, a bolt hole 30Bba is formed in the protruding piece 30b. The bolt hole 30Bba is a through hole similar to the bolt hole 30Aba described above. Further, a bolt insertion portion 58B is formed in the horizontal column body 44. The bolt insertion portion 58 in the above example has a diameter that can be threaded by the fixing bolt 32, whereas the bolt insertion portion 58B has a slightly larger diameter than the male threaded portion 32a of the fixing bolt 32, and the male threaded portion 32a has a diameter that can be threaded. It is possible to penetrate. In this case, the male screw portion 32a is sufficiently long and penetrates the bolt insertion portion 58B and protrudes to the left side in FIG. A nut (female threaded portion) 70 is screwed into this protruding portion of the male threaded portion 32a. Further, in the male threaded portion 32a between the protruding piece 30b and the horizontal prism 44, the nut (female threaded portion) 72 is screwed into the left side of the nut 68.

When applying the curtain wall fixing structure 10B, the fixing bolt 32 is pulled to the left side by first tightening the nut 70 on the left side. As a result, the fixed angle 30 and the horizontal frame member 16b are also displaced to the left and positioned at predetermined positions. After that, the nut 68 is tightened to the right side as shown by an arrow, and the protruding piece 30b is sandwiched and fixed by the nut 72 and the head 32b via the washer 64. Further, the nut 72 is tightened to the left side as shown by an arrow, and the horizontal column 44 can be sandwiched and fixed from both sides by the nut 70 and the nut 72 via a washer 64. When such a curtain wall fixing structure 10B is used, the horizontal frame member 16b and the fastener 34 are positioned and fixed via the head 32b, the male screw portion 32a, and the nuts 68, 70, 72.

The curtain wall fixing structures 10, 10A, and 10B are provided at the lower part of the curtain wall 14, so that the slider protrusion 46 can be easily inserted into the slider groove 62 when the curtain wall 14 is installed, and the structure is located at a high place. Workability is better if it is provided at the bottom than. Further, the structure can be such that the weight of the curtain wall 14 is not applied to the fixing bolt 32. However, depending on the conditions, it may be provided on the upper part of the curtain wall 14 upside down.

Although not shown, the curtain wall fixing structure 10 may be provided on the vertical frame member 16c. In this case as well, there is an effect similar to the example provided in the horizontal frame member 16b shown in FIG. The curtain wall fixing structure 10 may be provided at a corner portion of the curtain wall 14, or may be provided at an arbitrary height in the vertical frame member 16c. The same applies to the curtain wall fixing structures 10A and 10B.

Further, the curtain wall fixing structures 10, 10A, and 10B described above are provided with the fixing bolts 32 oriented in the left-right direction when viewed from the front, but the orientation is rotated by 90 ° so as to follow the up-down direction. It may be provided. In this case, when an external force in the vertical direction acts on the curtain wall 14, tensile stress and compressive stress act on the fixing bolt 32, but shear stress does not act, and sufficient strength is maintained. When the curtain wall fixing structures 10, 10A, and 10B are provided in the vertical direction, the fixing target may be any of the horizontal frame members 16a, 16b and the vertical frame members 16c.

The curtain wall fixing structure according to the present invention is a curtain wall fixing structure for fixing the frame material of the curtain wall to the fastener attached to the frame of the building, and is a bolt protruding from the frame material and through which the fixing bolt is inserted. A protruding piece having a hole, a fixing bolt inserted into the bolt hole in the left-right direction or the up-down direction in the front view of the curtain wall, and two or more female threaded portions screwed into the fixing bolt. The fastener has a pillar body provided with a bolt insertion portion through which the fixing bolt is inserted, and the fastener and the projecting piece are fixed by the fixing bolt and the female screw portion. And.
In such a structure, when an external force in the extending direction of the fixing bolt acts, tensile stress and compressive stress act on the fixing bolt, but shear stress does not act. The fixing bolts are resistant to tensile and compressive stresses and maintain sufficient strength.

The curtain wall fixing structure according to the present invention is characterized in that the frame material is a lower horizontal frame material in the curtain wall, and the fixing bolts are provided along the left-right direction.
This maintains sufficient strength, especially against lateral external forces.

The curtain wall fixing structure according to the present invention is characterized in that the female thread portion includes a female thread groove formed in the bolt hole and a portion formed by threading the bolt insertion portion by the fixing bolt. And.
As a result, the number of parts can be reduced without the need for independent parts as female threads.

The curtain wall fixing structure according to the present invention is characterized in that the bolt hole is configured so that the fixing bolt can be fitted, and the female screw portion includes a nut for sandwiching the protruding piece together with the head of the fixing bolt. ..
This allows the protrusion to be easily fixed.

In the curtain wall fixing structure according to the present invention, the bolt insertion portion is configured so that the fixing bolt can be fitted, the fixing bolt penetrates the bolt insertion portion, and the female screw portion sandwiches the horizontal column body from both sides. It is characterized by including a nut.
This allows the horizontal column to be easily fixed.

In the curtain wall fixing structure according to the present invention, the frame material is provided with a slider groove provided along the extending direction of the fixing bolt and opens to the outside of the frame, and the fastener protrudes inside the frame and the slider is formed. It is characterized by including a slider protrusion that is inserted into the groove and guides the fixing bolt in the extending direction.
With this structure, the curtain wall is properly guided in a predetermined direction.

The curtain wall fixing structure according to the present invention is characterized in that the slider groove opens downward and the slider protrusion protrudes upward.
This makes it easy to insert the slider protrusion into the slider groove when installing the curtain wall. In addition, the curtain wall fixing structure can be installed under the curtain wall to improve workability.

The curtain wall fixing structure according to the present invention is characterized in that the slider protrusion has a convex arc shape in a vertical cross-sectional view, and the maximum width portion in the prospective direction is in contact with the outdoor side surface and the indoor side surface of the slider groove. And.
When the slider protrusion has a convex arc shape, it is easy to fit into the slider groove and a gap is unlikely to occur.

The present invention is not limited to the above-described embodiment, and it is needless to say that the present invention can be freely changed without departing from the gist of the present invention.

10,10A, 10B Curtain wall fixed structure, 14 Curtain wall, 20a, 20b PC board (framework), 16a, 16b Horizontal frame material (frame material), 16ba finding surface, 16c vertical frame material (frame material), 28 slabs ( Frame), 30 fixed angle, 30a mounting piece, 30b protruding piece, 30Aba, 30ba, 30Bba bolt hole, 32 fixing bolt, 32a male thread part, 32b head, 34 fastener, 42 pedestal part, 44 horizontal pillar body (pillar body), 46 Slider protrusion, 46a tip, 46aa maximum width, 58,58B bolt insertion part, 60 slider wall part, 62 slider groove, 66 female thread part, 68,70,72 nut (female thread part)

Claims (8)

It is a curtain wall fixing structure that fixes the frame material of the curtain wall to the fastener attached to the frame of the building.
A protruding piece that protrudes from the frame material and has a bolt hole through which a fixing bolt is inserted.
A fixing bolt inserted through the bolt hole in the left-right direction or the up-down direction in the front view of the curtain wall.
Two or more female threaded portions screwed into the fixing bolt,
Have,
The fastener has a pillar body with a bolt insertion portion through which the fixing bolt is inserted.
The curtain wall fixing structure is characterized in that the fastener and the projecting piece are fixed by the fixing bolt and the female screw portion. The curtain wall fixing structure according to claim 1, wherein the frame material is a lower horizontal frame material in the curtain wall, and the fixing bolts are provided along the left-right direction. The female threaded portion
The female thread groove formed in the bolt hole and
A portion formed by threading the fixing bolt through the bolt insertion portion, and a portion formed by threading the fixing bolt.
The curtain wall fixing structure according to claim 1, wherein the curtain wall is fixed. The bolt hole is configured so that the fixing bolt can be fitted.
The curtain wall fixing structure according to claim 1, wherein the female screw portion includes a nut for sandwiching the projecting piece together with the head of the fixing bolt. The bolt insertion portion is configured so that the fixing bolt can be fitted, and the fixing bolt penetrates the bolt insertion portion.
The curtain wall fixing structure according to claim 1, wherein the female screw portion includes a nut that sandwiches the pillar body from both sides. The frame material is formed with a slider groove provided along the extending direction of the fixing bolt and opening to the outside of the frame.
The curtain wall according to any one of claims 1 to 4, wherein the fastener includes a slider protrusion that protrudes inside the frame and is inserted into the slider groove to guide the fixing bolt in the extending direction. Fixed structure. The curtain wall fixing structure according to claim 6, wherein the slider groove opens downward and the slider protrusion protrudes upward. 6. Curtain wall fixed structure.

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