Glass boxes for curtain walls, and methods for installing glass boxes for curtain walls on buildings.

Abstract

To provide a glass box for a curtain wall which is provided on a curtain wall of a building and improves designability, and a method for mounting a glass box for a curtain wall to a building.SOLUTION: A glass box 1 for a curtain wall includes a bottom face steel material frame 101, and a pair of side face steel material frames 102 and 103 which are erected on both ends of the bottom face steel material frame 101. An U-shaped steel material frame 10 is constituted by the bottom face steel material frame 101 and the pair of side face steel material frames 102 and 103. The glass box 1 includes a side face glass 30-2 arranged along the U-shaped steel material frame 10, and a front glass 30-1 arranged between ends which are not connected to the bottom face steel material frame 101, of the pair of side face steel material frames 102 and 103.SELECTED DRAWING: Figure 3

Description

Technical Field

[0001] The present disclosure relates to a glass box for a curtain wall and a method for attaching the glass box for a curtain wall to a building.

Background Art

[0002] A glass box provided in a building such as a mid-rise building is known (for example, see Patent Document 1). The glass box is configured by arranging glass on the front and side surfaces of a rectangular parallelepiped frame.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] Since the conventional glass box was composed of a rectangular parallelepiped frame, when it was provided on a curtain wall, the frame was conspicuous, and further improvement in design was required.

[0005] An object of the present disclosure is to provide a glass box for a curtain wall provided on a curtain wall of a building with improved design and a method for attaching the glass box for a curtain wall to a building.

Means for Solving the Problems

[0006] This disclosure relates to a glass box for a curtain wall, comprising a bottom steel frame and a pair of side steel frames erected at both ends of the bottom steel frame, the bottom steel frame and the pair of side steel frames forming a U-shaped steel frame, side glass arranged along the U-shaped steel frame and a front glass arranged between the ends of the pair of side steel frames that are not connected to the bottom steel frame. [Brief explanation of the drawing]

[0007] [Figure 1] This diagram shows a glass box according to one embodiment installed near the top floor of a building. [Figure 2] This is a side cross-sectional view showing a glass box according to one embodiment installed near the top floor of a building. [Figure 3] This is a perspective view showing a glass box of one embodiment. [Figure 4] This is a perspective view showing the steel frame of a glass box in one embodiment. [Figure 5] This is a front view showing a glass box of one embodiment. [Figure 6] This is a plan view cross-sectional view showing a glass box of one embodiment. [Figure 7] This is an enlarged cross-sectional view showing the area enclosed by S1 in Figure 6. [Figure 8] This is an enlarged cross-sectional view showing the area enclosed by S2 in Figure 6. [Modes for carrying out the invention]

[0008] Embodiments of this disclosure will be described in detail below with reference to the drawings. In this specification, "face direction" means the surface direction of the front glass 30 (30-1) in the glass box 1 fitted into the wall of a building, and "depth direction" means the surface direction of the side glass 30 (30-2) in the glass box 1. The "depth direction" is also the interior-exterior direction. "Face" means the respective faces of the glass box 1 facing the exterior and interior sides, and "depth" means the face of the glass box 1 extending in the interior-exterior direction. In the drawings, the exterior side of the glass box 1 is designated as the exterior side X1, and the interior side of the glass box 1 is designated as the interior side X2. The direction in which the side steel frames 102 and 103 extend from the bottom steel frame 101 is defined as the front direction Fr, and the opposite direction is defined as the rear direction Rr. The direction from the lower connecting frame 24 toward the upper connecting frame 23 is defined as the upward direction Up, and the opposite direction is defined as the downward direction Dw. Furthermore, the direction from vertical frame 14 to vertical frame 13 is defined as the left direction L, and the opposite direction is defined as the right direction R, and the explanation follows.

[0009] Glass boxes 1 are installed in the curtain wall that makes up the exterior wall of the building. Specifically, as shown in Figures 1 and 2, multiple glass boxes 1 are installed in a single row vertically at the upper end of the upper floors of the high-rise building B and the lower part near there. For this reason, as shown in Figure 1, the glass boxes 1 are arranged in a convex shape on the curtain wall, extending vertically in multiple rows.

[0010] As shown in Figures 3 and 4, the glass box 1 has a steel frame 10 and glass 30. The steel frame 10 has a rectangular bottom steel frame 101 having an upper frame 11, a lower frame 12, a pair of vertical frames 13 and 14, and an intermediate columnar section 21 that spans them, and side steel frames 102 and 103 having an upper left frame 15, an upper right frame 16, a lower left frame 17, a lower right frame 18, an upper connecting frame 23, and a lower connecting frame 24, and these are covered with aluminum extruded profiles to seal them.

[0011] The bottom steel frame 101 has a rectangular shape in which the upper frame 11 and lower frame 12 form the short sides and the pair of vertical frames 13 and 14 form the long sides. The upper frame 11, lower frame 12, and the pair of vertical frames 13 and 14 are formed in a rectangular plate shape.

[0012] The side steel frame 102 has a rectangular shape, with the upper left frame 15 and upper right frame 16 forming the short sides, and the upper connecting frame 23 and the upper frame 11 of the bottom steel frame 101 forming the long sides. The upper left frame 15, upper right frame 16, and upper connecting frame 23 have cross-sections perpendicular to their longitudinal directions that are formed in an L-shaped plate form. The side steel frame 103 has a rectangular shape, with the lower left frame 17 and lower right frame 18 forming the short sides, and the lower connecting frame 24 and the lower frame 12 of the bottom steel frame 101 forming the long sides. The lower left frame 17, lower right frame 18, and lower connecting frame 24 have cross-sections perpendicular to their longitudinal directions that are formed in an L-shaped plate form.

[0013] As shown in Figure 4, the steel frame 10 is formed in a U-shape by the side steel frame 102, the bottom steel frame 101, and the side steel frame 103. The steel frame 10 is made of cut steel material that has been cut into this shape. As a result, the U-shaped steel frame 10 can support the heavy glass 30 without deformation. Therefore, instead of using a rectangular parallelepiped steel frame, the U-shaped steel frame 10 allows for a frameless configuration between the left and right edges of the front glass 30-1 and the front edge of the side glass 30-2. As a result, it is possible to create a glass box with improved design.

[0014] Brackets 22, 22 are provided at the top of the pair of vertical frames 13, 14. As shown in Figure 2, the brackets 22, 22 are fixed by fasteners B13 to the steel frame pre-attachment members B12 provided on the steel frame B11 of the high-rise building B. In addition, the lower frame 12 is provided with a pair of connecting protrusions 121 extending downward. The connecting protrusions 121 engage with the protrusion engagement holes 111 (see Figure 6) formed in the upper frame 11 of the glass box 1 located one level below. As a result, the glass box 1 is supported in the curtain wall of the high-rise building B.

[0015] The glass 30 constitutes the front glass 30-1 and the side glass 30-2. Specifically, the front glass 30-1 has a rectangular shape. The vicinity of the short side of the front glass 30-1 is fixed by glass support hardware 351 using the DPG method to a semicircular fixing part 232 protruding from the upper surface 231 of the upper connecting frame 23 and a semicircular fixing part 242 protruding from the upper surface 241 of the lower connecting frame 24. As a result, the front glass 30-1 is positioned between the ends of the pair of side steel frames 102 and 103 that are not connected to the bottom steel frame 101, that is, between the upper connecting frame 23 and the lower connecting frame 24 that constitute the front ends of the pair of side steel frames 102 and 103.

[0016] The side glass 30-2 is positioned along the U-shaped steel frame 10. Specifically, the side glass 30-2 has a rectangular shape with the same length in the longitudinal direction as the front glass 30-1. The vicinity of the short side of the side glass 30-2 is fixed by glass support hardware 351 using the DPG method to a semicircular fixing part 152 protruding from the left surface 151 of the upper left frame 15 and a semicircular fixing part 172 protruding from the left surface 171 of the lower left frame 17. As a result, the left side glass 30-2 is positioned between the ends of the pair of side steel frames 102 and 103 that are not connected to the bottom steel frame 101, that is, between the front end of the upper left frame 15 and the front end of the lower left frame 17 of the pair of side steel frames 102 and 103. The right side glass 30-2 is similarly fixed to the front end of the upper right frame 16 and the lower right frame 18.

[0017] As shown in FIG. 7 and the like, the glass 30 that constitutes the front glass 30-1 and the side glass 30-2 is a laminated glass formed by laminating two rectangular glass plates 31 of the same shape with an intermediate film 32 interposed therebetween. The intermediate film 32 has a higher hardness and strength than the intermediate film that constitutes the windshield of an automobile. By having such hardness and strength, the intermediate film 32 can increase the rigidity of the glass 30 and suppress twisting and the like. Therefore, even if the steel frame 10 is U-shaped, it is possible to suppress distortion and deformation of the glass box 1.

[0018] As shown in FIG. 7, a groove 301 formed by a notch is formed at the end of the side glass 30-2 facing the front glass 30-1. The groove 301 is formed at the position where the two glass plates 31 are laminated at the end of the side glass 30-2 which is a laminated glass.

[0019] A sealing composed of an airtight material 33 which is a structural seal and a silicone seal 34 which is a packing is arranged between the glass 30 that constitutes the front glass 30-1 and the end of the glass 30 that constitutes the side glass 30-2. A part of the airtight material 33 is engaged with the groove 301, and by this engagement, the airtight material 33 is stably supported. By this sealing, the front glass 30-1 and the side glass 30-2 are stably supported.

[0020] Between the glass 30 that constitutes the front glass 30-1 and the end of the glass 30 that constitutes the side glass 30-2, at an intermediate position in the longitudinal direction of these glasses, as shown in FIG. 2, a connecting member 353 is provided. The connecting member 353 has a shape in which a plate-shaped steel material with an oval shape is bent at a right angle at the center in the longitudinal direction, and both ends thereof are fixed to the front glass 30-1 and the side glass 30-2, respectively, by glass support fittings 351. Thereby, the front glass 30-1 and the side glass 30-2 are connected and supported. Utilizing the rigidity of the glass 30, the steel frame 10 can be reinforced and the effect of substituting for the structural brace can also be exerted.

[0021] As shown in FIG. 8, the rear end portion of the left side glass 30-2 is sandwiched and supported between the pressing edge 361 via the grating gasket 362 and the upper left frame 15 via the grating seal 363 and the spacer gasket 364.

[0022] On the entire front side inside the bottom steel frame 101, a decorative material 41 is provided. The decorative material 41 is formed by applying a wood grain finish to the surface of an iron plate, and as shown in FIG. 5, it is arranged in 4 rows horizontally and 2 rows vertically. None of the decorative materials 41 have the same design but are composed of different designs.

[0023] The four lower decorative materials 41 shown in FIG. 5 are fixed to the front side of the openable door 51. The door 51 is configured to open in a double-leaf manner and integrally with the decorative material 41, as shown by the two-dot chain line in FIG. 6 and the like. Since the door 51 is provided, it is possible for a person to enter the inside of the glass box 1 by opening the door 51 and perform maintenance on the glass box 1.

[0024] Next, a method for attaching the curtain wall glass box to a building will be described. In the method for attaching the glass box to a building, first, a step of assembling the glass box 1 by attaching the front glass 30-1 and the side glass 30-2 to the steel frame 10 by means of glass support fittings 351 is performed.

[0025] Next, the glass box 1 is fixed to the building's steel frame. First, the connecting projection 121 of glass box 1 is inserted into the projection engagement hole 111 of the glass box 1 below it and engaged. At the same time, brackets 22 and 23 are fixed to the steel frame pre-attachment B12 provided on the steel frame B11 of the high-rise building B using fasteners B13. Through these steps, the glass box 1 is fixed to the building's steel frame B11.

[0026] While a preferred embodiment of the present disclosure has been described above, the present disclosure is not limited to the embodiment described above and can be modified as appropriate.

[0027] For example, in this embodiment, the glass box 1 is installed on a high floor, but this is not limited to that. Also, the configuration of the steel frame, etc., is not limited to the configuration of the steel frame 10, etc., in this embodiment. Furthermore, the configuration of the steel frame is not limited to a U-shape, depending on the size, strength, and support method of the steel material. For example, the configuration of the steel frame may be a cantilevered frame, or a U-shape with the middle section cut off. [Explanation of symbols]

[0028] 1 glass box, 10 steel frame, 30 glass, 30-1 front glass, 30-2 side glass, 33 airtight material (structural sealing), 51 door, 101 bottom steel frame, 102, 103 side steel frame, 301 groove (notch), B high-rise building (building), B11 steel frame,

Claims

1. Steel frame at the base, The bottom steel frame is provided with a pair of side steel frames erected at both ends, and the bottom steel frame and the pair of side steel frames constitute a U-shaped steel frame. Side glass arranged along the aforementioned U-shaped steel frame, A glass box for a curtain wall, comprising a front glass positioned between the ends of the pair of side steel frames that are not connected to the bottom steel frame.

2. The glass box for a curtain wall according to claim 1, wherein the steel frame is made of cut material.

3. The glass box for a curtain wall according to claim 1, wherein the side glass and the front glass are supported by a seal.

4. The glass box for a curtain wall according to claim 3, wherein the sealing is composed of structural sealing.

5. The glass box for a curtain wall according to claim 4, wherein the side glass has a notch formed to support the sealing.

6. The glass box for a curtain wall according to claim 1, wherein the backing material supporting the side glass and the front glass is made of a packing.

7. A glass box for a curtain wall according to claim 1, wherein a door is provided on the inside of the bottom steel frame.

8. A glass box for a curtain wall according to claim 1, which is installed on a high floor.

9. The process of assembling a glass box for a curtain wall includes a bottom steel frame and a pair of side steel frames erected at both ends of the bottom steel frame, the bottom steel frame and the pair of side steel frames forming a U-shape, the side glass being placed along the steel frame, and the front glass being placed between the ends of the pair of side steel frames that are not connected to the bottom steel frame, A method for attaching a glass box for a curtain wall to a building, comprising the step of fixing the glass box for the curtain wall to the steel frame of the building.

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