JPH06101295A - Mounting structure of facing board in curtain wall unit - Google Patents

Abstract

PURPOSE:To exchange only a facing board, in which breaking, cracking, etc., are generated, in a curtain wall unit simply. CONSTITUTION:In a curtain wall unit, a fixture 40 for connection is fixed to one of the upper and lower edges of a facing board 4A while a fixture 42 for fastening a bolt is secured at the other edge in the facing board 4A installed to a holding frame. On the other hand, a facing board supporter 30 engaged with the fixture 40 for engagement is fixed on the holding frame side, and the projecting piece of the fixture 40 for engaging the facing board is interlinked with the engaging groove of the facing board supporter 30 on the holding frame side while the bolt is fastened by a nut 33 mounted from the outdoor side in the fixture 42 section for fixing the bolt.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a curtain wall unit used as an outer wall material of a building or the like, which is integrally provided with an exterior plate such as a stone plate, a tile and a ceramic plate.

[0002]

2. Description of the Related Art In recent years, in building works such as buildings,
The mainstream method is the curtain wall method, in which curtain walls manufactured in advance in the factory are sequentially built into the outer wall. Conventionally, the curtain wall has been often used with a composition mainly composed of cement or the like, but the appearance is dull even if simple decoration such as coloring can be performed. Therefore, in recent years, a curtain wall unit in which an exterior material such as a stone plate, a tile, or a ceramic plate is attached to the outside of the holding frame has been adopted. Known techniques relating to this curtain wall unit include, for example, Japanese Patent Laid-Open Nos. 2-157342 and 2-22574.
There is one disclosed in Japanese Patent No. 5 publication.

[0003]

However, all of the known curtain wall units described above are fixed on the back side of the exterior plate by a holding frame and bolts, etc. If some exterior plates in the unit are cracked or damaged due to an accident or external factors after the completion of construction, it is not possible to replace only the damaged stone plate easily and the entire unit may be replaced. Since most of the exterior plates were once removed, the damaged exterior plates were replaced, and then reassembled, it was very costly and complicated and time-consuming.

Therefore, a main object of the present invention is to provide a curtain wall unit in which only the exterior plate that has been damaged or cracked can be easily replaced.

[0005]

The above object is a curtain wall unit which is composed of a holding frame and at least two exterior plates attached to the holding frame, and which is attached to an outer wall portion of a structure. Each of the exterior plates,
By being engaged with the holding frame side at one side edge portion and being fixed to the holding frame side at the other side edge portion by a fixture from the outdoor side, it can be removed from the outdoor side. Solvable.

Further, according to a specific aspect, an engaging fitting having a projecting piece extending outward is fixedly provided on one of the upper and lower edges of part or all of the exterior plate. , A bolt fixing fixture is fixed to the other edge,
Also, an exterior plate support having an engagement groove that opens toward the exterior plate attachment side is fixedly provided on the holding frame side that substantially corresponds to the attachment position of the engagement attachment, and the exterior plate is the engagement attachment. Of the projecting piece is engaged with the engaging groove of the exterior plate support on the side of the holding frame, and is attached to the holding frame by a fastener attached from the outside of the exterior in the fixing attachment part of the exterior plate. It is fixed directly or indirectly.

[0007]

The exterior plate according to the present invention is engaged with the holding frame side at one side edge portion, and is fixed at the other side edge portion by a fixture from the outdoor side. Therefore, even after being attached as the outer wall of the building, it is possible to easily replace only the exterior plate damaged from the outdoor side by removing the fixing tool. In addition, according to a specific mode, an engaging fixture is integrally provided on one edge of the exterior plate,
And on the other edge side is integrally provided with a bolt fixing fixture,
Since the exterior plate support is fixedly installed on the side of the holding frame, attachment / detachment becomes easy. Further, at least one of the upper and lower edges and the left and right edges, that is, both opposite edges may be fixed by bolts.

[0008]

EXAMPLES The present invention will be described in detail below based on examples. 1 is an overall vertical cross-sectional view of a curtain wall unit according to the present invention, FIG. 2 is a perspective view for explaining the structure, and FIG.
1 is an enlarged detail view of an A portion of FIG. 1, and FIG. 4 is an enlarged detail view of an B portion of FIG. As shown in FIGS. 7 and 8, the curtain wall units 1, 1 according to the present invention are attached to the outer wall portion of a building such as a building so as to be adjacent in the vertical and horizontal directions, and the curtain wall units 1, 1 are also provided. The space portion formed by is configured as the window W. As shown in FIG. 1, the curtain wall unit 1 is attached to an outer wall portion of the curtain wall unit 1 using a support beam 3 arranged below the floor 2 as a support member.

The curtain wall unit 1 is mainly composed of upper and lower frames 10A and 10B and vertical frames 10C and 10D having a square cross section.
It is composed of a rectangular holding frame 10 formed by, and exterior plates 4A, 4B, 5 attached thereto. At the appropriate position in the up-down direction in the holding frame 10, the horizontal crosspiece 1
1A and 11B are provided, and the horizontal crosspieces 11A and 1B are provided.
The exterior plate 4A, 4B, 5 is partitioned by the 1B portion. The horizontal crosspieces 11A, 11B
6 is bolted to the angle piece 15 fixed to the inner surfaces of the vertical frames 10C and 10D by welding, as shown in FIG. First, on the side of the holding frame 10, the fitting groove 13A formed by the two angles 13, 13 arranged parallel to the inner side of the inner surface portion of the holding frame 10 and the horizontal crosspiece 11A. , 11B for the respective partition portions surrounded by the intermediate frame members 14A, 14B having a hat-shaped cross section disposed on the back surface portions of the fireproof plates 12A to 11B.
12C are fitted respectively, and the holding frame 10
A waterproof steel plate 16 is attached to the front portion of each of the above-mentioned partition portions partitioned by the holding frame 10 and the horizontal crosspieces 11A and 11B. The waterproof steel plate 16 is
In connection with wastewater treatment, which will be described later, it functions as a shielding material that prevents rainwater and the like from entering the indoor side. As the waterproof steel sheet, a thin steel sheet coated with a fluororesin paint, a phenol resin paint, a silicone resin paint or the like having excellent water resistance is preferably used. Alternatively, a galvanized steel sheet, an aluminum plated steel sheet, or the like can be used.

On the front surface of the holding frame 10, the exterior plate 4A,
4B and 5 are attached, but in the case of the curtain wall unit 1 according to the present embodiment, the outer plates 4A and 4B of the upper portion and the lower portion of the holding frame 10 are stone plates, and the outer plate of the middle portion thereof. Reference numeral 5 is an aluminum panel (hereinafter referred to as an aluminum panel exterior plate). In this embodiment, the material is an exterior plate 4A which is easily damaged by stones,
The present invention is applied to 4B. In addition to stone plates, tiles, ceramics, crystal glass, mirror glass and the like can be used as the material of the exterior plate. When mounting the exterior plate 4A, the upper frame 10A is used.
The upper exterior plate support tool 30 is fixed to the upper surface of the with a screw. A rear end of the upper exterior plate supporter 30 is supported by an angle member 31 fixed to the upper frame 10A, and a hook for forming an engaging groove M that opens downward at the front end of the front member. It has a rising piece 30a having a portion 30b. The engaging groove M serves as an upper engaging portion for detachably supporting the exterior plate 4A with respect to the holding frame 10. In addition, a front opening pocket is formed at the tip of the T-shaped protruding piece 11a protruding forward from the front portion of the cross rail member 11A, and a bolt head is fitted into this pocket portion so that the screw portion thereof protrudes. A fixing bolt 32 for fitting is fitted, and this portion serves as a bolt fixing portion for detachably supporting the exterior plate 4A.

On the other hand, paying attention to the exterior plate 4A to be attached, a groove 4a is formed in the upper surface portion thereof at a substantially central position in the thickness direction along the member direction, and the holding frame 10 side with respect to the groove 4a. An engaging fitting 40 that engages with the engaging groove M is fitted. The engaging fixture 40 includes a fitting fixing portion 40a having a U-shaped cross section for fitting into the groove 4a of the exterior plate 4A, and a protruding piece 40b for engaging with the engaging groove M. Have In addition, the fitting 40 for engagement
In the fitting and fixing, the cushioning material such as chloroprene rubber is interposed so as to absorb and absorb the acting stress, and the material is firmly fixed by an adhesive or the like so as not to fall off. Further, a groove 4b extending along the member direction is formed at a substantially central position in the thickness direction on the lower surface portion of the exterior plate 4A, and a bolt for engaging the fixing bolt 32 with the groove 4b. The fixing fixture 42 is fitted and fixed.
The bolt fixing fixture 42 has a fitting fixing portion 42a for fitting in the groove 4b of the exterior plate 4A, and an engaging portion 42b for engaging with the fixing bolt 32. There is. In fitting and fixing the bolt fixing fixture 42, similarly to the case of the engaging fixture 40, cushioning material such as chloroprene rubber is interposed to absorb and absorb the action stress, and an adhesive material or the like is used. It is firmly fixed so that it does not fall out.

Under such a mounting structure, when mounting the exterior plate 4A, first, the engaging portion 40b of the engaging fixture 40 of the exterior plate 4A is fitted into the engagement groove M on the holding frame 10 side, Next, after engaging the engaging portion 42b of the bolt fixing fixture 42 of the exterior plate 4A with the fixing bolt 32, the nut 33 that can be attached from the outdoor side is screwed to fix the exterior plate 4A. After completing these mounting operations, the backup material 50 is packed in the gap portion around the backup work, and the seal 51 is installed over the periphery. As described above, the exterior plate 4A according to the present invention is detachable from the holding frame 10. Therefore, if the exterior plate 4A is cracked or damaged, the steps reverse to the above-described mounting procedure are performed. It is possible to remove only the exterior plate 4A and replace it with a new exterior plate 4A. In addition, the exterior plate 4A is the fitting 4 for engagement.
It may be directly engaged or fixed with respect to the holding frame 10 side without having 0 or the bolt fixing fixture 42.

On the other hand, the aluminum panel exterior plate 5 attached to the lower part of the exterior plate 4A has an engaging portion 5a which is bent in an L-shape at the upper portion thereof, and the fixing bolt 23 is attached to the engaging portion 5a. Is penetrated through and is fixed by the nut 33 together with the fixing of the exterior plate 4A. As the aluminum panel exterior plate 5, a product having a thickness of 3 mm and subjected to glite spray is used. Further, a grooved steel 5A is provided on the back side of the aluminum panel exterior plate 5 at a substantially central position in the vertical direction to reinforce the aluminum panel exterior plate 5.
Exterior plate 4B disposed below the aluminum panel 5
Regarding the above-mentioned mounting structure of the exterior plate 4A, it has a bolt fixing portion at an upper edge portion and a fitting engagement portion at a lower edge portion, which is an upside-down structure. Are installed by a similar structure.

The mounting structure of the curtain wall unit 1 will now be described. As shown in FIG.
Vertical frame 10C, 10D mounting member 2 having an L-shaped cross section on the indoor side surface
0 is fixed by welding, and is fixed to the fixing metal fitting 22 fixed to the upper surface portion of the overhanging beam 3A extending laterally from the H-shaped beam 3 through bolts 26 and the like. The fixing metal fitting 22 is fastened by a bolt 23 and a nut 24 and fixed to the flange 3a, and
A bolt 26 that penetrates the fixing metal fitting 22 penetrates the hole of the rising piece 22a of the fixing metal fitting 22 and is fastened and fixed by a nut 27. Incidentally, 25 of the fixing metal fitting 22 is a height adjusting plate, and 28 of the mounting member 20 is a curved plate spring interposed to prevent loosening.

Further, one piece member 20 of the mounting bracket 20.
The bolt 21 screwed to the nut 29 fixed to a is
The head portion 21a is a rising piece 22 of the fixing bracket 22.
The vertical load is supported by contacting the tip of a. The lower surface of the overhanging beam 3A is also fixed by the same fixing structure as described above except that the vertical support bolt is not provided.

Next, the structure for attaching the curtain wall unit 1 according to the present invention and its surroundings will be described in detail.
A glass window is formed in the upper portion of the curtain wall unit 1. Therefore, a lower window frame member is attached to the upper surface of the upper frame 10A. In the lower window frame member, the lower window frame 35 is attached by a bolt to the angle 34 directly fixed to the upper frame 10A, and the glass G is attached to the concave groove formed by the fitted ridge 36. It is fitted. Reference numeral 52 is a setting block for installing the glass G, and 53 is a sealing material that is installed around the glass G.

On the other hand, the relationship between the curtain wall unit 1 and another curtain wall unit 1 adjacent in the lateral direction is formed by the exterior plates 4A, 4A and the side attachment members 37, 37 as shown in FIG. The respective gaps in the cross direction are closed by the backup material and the seal material, and the packings 38, 38 fitted to the side mounting material 37 are brought into contact with each other to ensure airtightness. . Further, asbestos 54 is sprayed between the vertical frames 10C and 10D on the indoor side by the construction on site.
Further, the mounting structure of the aluminum panel exterior plates 5 and 5 shown in FIG. 6 has substantially the same structure.

On the other hand, the drainage treatment on the back side of the exterior plate 4A in the curtain wall unit 1 according to the present invention is performed as shown in FIG.
As shown in FIG. 7, rainwater and the like that have entered the concave groove by being transmitted through the glass G flow down from the water draining hole 35a formed in the lower window frame member 35, and further, the engaging fixture 40. After passing through the communication portion formed in the engaging portion 40b or the water drainage hole 30c formed in the upper exterior plate support tool 30 fixed to the upper frame 10A, the exterior plate 4A and the waterproof steel plate 16
Through the communication passage between the seal plate 51 and the lower fixing portion of the exterior plate 4A, the fixing bolt 33 passes, and the seal 51
It is designed to be discharged to the outside through a gap formed in a part of.

[0019]

As described above in detail, according to the present invention, it is possible to easily replace only an exterior plate having a defect, a crack or the like, with respect to the exterior plate mounting structure of the curtain wall unit.

[Brief description of drawings]

FIG. 1 is an overall vertical cross-sectional view of a curtain wall unit according to the present invention.

FIG. 2 is a structural explanatory view of a curtain wall unit according to the present invention.

FIG. 3 is an enlarged detailed view of a portion A of FIG.

FIG. 4 is an enlarged detailed view of part B of FIG.

FIG. 5 is a transverse cross-sectional view of the curtain wall unit according to the present invention at the position of the exterior plate.

FIG. 6 is a cross-sectional view of the curtain wall unit according to the present invention at an aluminum panel position.

FIG. 7 is a front view of the curtain wall unit according to the present invention after attachment.

8 is a vertical cross-sectional view taken along the line VIII-VIII of FIG.

[Explanation of symbols]

1 ... Curtain wall unit, 2 ... Floor, 3 ... Support beam, 4A / 4B / 5 ... Exterior plate, 10 ... Holding frame, 10A ...
Upper frame, 10B ... Lower frame, 10C / 10D ... Vertical frame, 11A.
11B ... Horizontal cross members, 12A-12C ... Fireproof plate, 30 ... Upper exterior plate support tool, 30b ... Hook part, M ... Engagement groove, 33 ...
Fixing bolt, 40 ... Engaging fixture, 42 ... Bolt fixing fixture, 50 ... Backup material, 51 ... Sealing material

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Kazunori Inoue 2-7-23, Kiba, Koto-ku, Tokyo Shin Nikkei Co., Ltd.

Claims (3)

[Claims] 1. A curtain wall unit, which comprises a holding frame and at least two exterior plates attached to the holding frame, and which is attached to an outer wall portion of a structure, wherein each exterior plate is one of The side edge portion is engaged with the holding frame side, and the other side edge portion is fixed with respect to the holding frame side by a fixture from the outdoor side,
An exterior plate mounting structure in a curtain wall unit, which is removable from the outdoor side. 2. A curtain wall unit comprising a holding frame and at least two exterior plates attached to the holding frame and attached to an outer wall portion of a structure, wherein a part or all of the exterior plate. In the above, an engaging fitting having a projecting piece extending outward is fixed to one of the upper and lower edges thereof, and a bolt fixing fitting is fixed to the other edge of the engaging fitting. An exterior plate support having an engaging groove that opens toward the exterior plate attachment side is fixedly provided on the holding frame side substantially corresponding to the attachment position of the combination attachment, and the exterior plate is a protruding piece of the engagement attachment. Is engaged with the engaging groove of the exterior plate support on the side of the holding frame, and is directly or indirectly attached to the holding frame by a fastener attached from the outdoor side in the fixing attachment portion of the exterior plate. Fixed and removed from the outside Exterior plate mounting structure in a curtain wall unit, characterized in that that is possible. 3. A curtain wall unit comprising a holding frame and at least two exterior plates attached to the holding frame and attached to an outer wall portion of a structure, wherein a part or all of the exterior plate. In the above, at least one of the upper and lower edges and the left and right edges thereof is fixedly mounted with a bolt fixing member, and the exterior plate is directly attached to the holding frame by a fastener attached from the outside of the fixing fitting portion. Alternatively, the exterior plate mounting structure in the curtain wall unit is characterized by being indirectly fixed and removable from the outdoor side.