JP2754469B2 - Top drainage structure of curtain wall - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure for draining rainwater or the like that has entered the top of a curtain wall attached to a building frame.

[0002]

2. Description of the Related Art Curtain walls are known in which a blind is connected between left and right adjacent cubicles, and a panel is mounted between the left and right neighboring cubicles and a vertically adjacent blind mesh.

[0003] At the top of the curtain wall, a cap is attached, and the attachment portion is sealed with a sealing material. However, rainwater may enter the top of the curtain wall due to deterioration of the sealing material or the like.

[0004]

As described above, when rainwater enters the uppermost part of the curtain wall, the rainwater collects at the uppermost part of the curtain wall, and eventually flows over the uppermost part of the curtain wall into the building frame. There is.

Accordingly, an object of the present invention is to provide a top drainage structure of a curtain wall which can solve the above-mentioned problems.

[0006]

According to the present invention, the uppermost drainage structure of a curtain wall has a topmost stitch and a middle stitch connected between left and right adjacent cubicles. A panel is attached between the blind and the left and right adjacent cubicles to form a curtain wall, and the uppermost blind is shaped to have a hollow portion near its upper part, and flows along the uppermost blind A drain hole for introducing rainwater or the like into the hollow portion is formed, and the cubic shape is formed to have a vertically continuous concave groove in the blind mounting surface. The upper stitch is connected so that its hollow portion communicates with the groove, and the middle stitch has a shape having an upper groove opened on its upper surface, and the upper groove is opened to the outside of the room. A drain port is formed, and this intermediate portion is provided with a groove on the upper surface of the rectangular mounting surface. The drainage block is connected to the concave groove by opening communication, and the drainage block for flowing rainwater or the like flowing along the concave groove into the intermediate upper concave groove is attached to the intermediate joint portion of the rectangular groove. It is a thing.

[0007]

[Action] Rainwater, etc., flowing along the top of the uppermost blind, flows into the hollow from the drain hole, and the rainwater, etc. in the hollow flows into the cubic groove, flows down along the groove, and drains. The water flows into the middle upper concave groove by the block, and is drained to the outdoor side from the drain port.

[0008]

[Embodiment] As shown in FIG. 1, a plurality of cubicles 2 are attached to a building frame 1 with fasteners 3 at an interval in the left-right direction. The stitches 4 are connected, the middle stitches 5 are connected between the upper and lower middle portions at intervals in the vertical direction, and the panel 6 is mounted between the stitches vertically adjacent to each other and the cubicle 2 adjacent to the left and right. Thus, a curtain wall 7 is formed, and a cap 8 is attached to the uppermost blind 4 by a holder 9 and a bracket 10.

The uppermost seamless portion 4 includes an upper hollow portion 11,
It has an intermediate concave portion 12 and a lower concave groove 13 opened to the outdoor side, and the bracket 1 is provided on the outdoor side surface 14 of the upper hollow portion 11.
0 is attached, and a sealing material 15 is mounted between the outdoor surface 14 and the outdoor-side downward piece 8a of the coping 8.

[0010] For this reason, rainwater or the like that has entered from the joints or the like of the coping 8 accumulates between the outdoor-side downward piece 8 a of the coping 8 and the outdoor surface 14 of the upper hollow portion 11.
May flow over the upper surface 4a of the upper hollow portion 11 to the indoor side, so that the sealing material 15
A drain hole 16 is formed above the drain hole 16 so that the accumulated rainwater flows into the upper hollow portion 11 through the drain hole 16.

The intermediate portion blind 5 has an upper concave groove 17, an intermediate concave portion 18 opened to the outside of the room, and a lower concave groove 19. The upper concave groove 17 is formed by attaching a ridge 20.

As shown in FIG. 2, the cubic member 2 is a divided cubic member formed by connecting two cubic members 30. The cubic member 30 has an inward concave groove 3 near the outdoor side of the vertical plate 31 facing the out-of-plane direction.
2 is a cross-sectional shape. The out-of-plane dimension of the cubic member 30 is larger than the out-of-plane dimension of the uppermost seamless line 4.

As shown in FIGS. 2 and 3, the uppermost blind 4 is screwed onto a blind mounting surface of the cubic member 30 via a sealer 33.
4, the outdoor side surface 4b of the uppermost seamless line 4 and the outdoor side surface 30a of the cubic member 30 are flush with each other.

The sealer 33 has a shape conforming to the shape of the end face of the uppermost seamless line 4.
The uppermost portion of the top groove 4 is closed so as not to communicate with the bottom groove 32. A drain hole 35 is formed in the sealer 33 so as to be aligned with the bottom 11 a of the upper hollow portion 11. The drain hole 35 connects the upper hollow portion 11 to the concave groove 32.

A groove covering member 36 is fitted near the uppermost portion of the groove 32 of the cubic member 30, and the groove covering member 36 is fixed with a screw 37. It has a function as a back-up material for the sealer 33 while closing the upper part.

As shown in FIG. 4, the groove covering material 36 is
The inner vertical surface 36 a is flush with the blind mounting surface (inner surface) of the cubic member 30, and a sealing material 38 is filled in a fitting portion between the groove covering member 36 and the groove 32. This groove covering material 3
An inflow port 39 is formed in the inner vertical surface 36 a of this 6, and this inflow port 39 communicates with the lower end face 36 b, and the rainwater flowing from the inflow port 39 flows down into the concave groove 32 of the cubic member 30.

The inlet 39 of the groove covering material 36 has a shape and size corresponding to the drain hole 35 of the sealer 33, and
3 is the blind mounting surface (inner surface) of the cubic material 30 and the groove closing material 36
When glued over the inside vertical surface 36a of the
And the inflow port 39 match.

As shown in FIG. 5, the intermediate portion blind 5 is abutted against a blind mounting surface of the cubic member 30 via a sealer 40 and is connected by screws. Grooves 32 in cubicle 30
The drain block 41
However, the drain block 41 is fixed to the inner peripheral surface of the concave groove 32 in close contact with no gap, and the drain block 41 is fixed with screws.

The upper surface 42 of the drain block 41 is slanted so that the middle 5 is lower than the horizontal.
The rainwater that has flowed down along the groove 32 of the cubic member 30 flows along the upper surface 42 of the drain block 41 into the upper groove 17 of the intermediate portion 5.

A drain port 43 is formed at the bottom of the upper concave groove 17 of the intermediate section seamless hole 5 so as to open into the intermediate concave section 18. It flows to the concave portion 18 and flows to the outside.

As described above, the rainwater or the like collected in the upper part of the uppermost seamless line 4 flows into the upper hollow part 11 from the drain hole 16, and the rainwater and the like in the upper hollow part 11 is discharged into the drain hole 35 of the sealer 33. From the inlet 39 of the groove covering material 36, the cubic material 3
The rainwater or the like that has flowed into the groove 32 of the drain block 41 and has flowed down along the groove 32 flows into the upper groove 17 of the intermediate portion 5 along the upper surface 42 of the drain block 41, and the upper groove 17.
Rainwater and the like in the inside flows from the drain port 43 to the intermediate recess 18 and is drained.

Since the intermediate stitch 5 is located at a position lower than the uppermost stitch 4, the wind pressure acting on the middle stitch 5 is weaker than the wind pressure acting on the uppermost stitch 4. There is no danger of backflow due to rainwater or the like due to the acting wind pressure.

FIG. 6 shows another embodiment of attaching a cap, in which the outdoor downward piece 8a of the cap 8 is connected to the upper surface 4a of the uppermost blind 4 via an angle member 50, and the connecting portion is wet-sealed. Sealed with material 51.

In this case, rainwater or the like flows along the upper surface 4a of the uppermost seamless line 4 due to the breakage of the seal of the wet sealing material 51 or the like. A drain hole 53 is formed at the bottom of the concave portion 52 so that rainwater or the like flowing along the upper surface 4a of the uppermost eyelet 4 falls into the upper hollow portion 11 of the uppermost eyelet 4. It is.

FIG. 7 shows another embodiment of the attachment of the uppermost stitch 4, in which the holder 54 is interposed between the upper surface 4 a of the uppermost stitch 4 and the upper part (parapet) of the building frame 1 via an angle member 55. It is mounted and its mounting part is sealed with a wet seal material 56.

In this case, rainwater or the like flows along the upper surface 4a of the uppermost seamless line 4 due to the breakage of the seal of the wet sealing material 56 or the like. A drain hole 53 is formed at the bottom of the concave portion 52 so that rainwater or the like flowing along the upper surface 4a of the uppermost eyelet 4 falls into the upper hollow portion 11 of the uppermost eyelet 4. It is.

[0027]

According to the present invention, rainwater and the like flowing along the top of the uppermost eye flow into the hollow portion from the drain hole, and the rainwater and the like in the hollow portion flow into the cubic groove and flow down along the groove. The water flows into the middle upper concave groove by the drain block, and is drained to the outdoor side from the drain port. Therefore, it is possible to prevent rainwater or the like flowing along the uppermost seamless part from being drained from the intermediate part and flowing into the room. Further, the drain port is located below the drain hole, and since the distance between the drain port and the drain hole is long, rainwater or the like does not flow back to the drain hole due to wind pressure acting on the drain port.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view showing an embodiment of the present invention.

FIG. 2 is a perspective view of a connecting portion between a cubic and an uppermost seamless portion.

FIG. 3 is an exploded perspective view of a cubic material and a topless eye.

FIG. 4 is a perspective view showing a state where a drainage block is attached to a cubic member.

FIG. 5 is a perspective view of a cubic member and a connecting portion of the intermediate portion.

FIG. 6 is a vertical cross-sectional view showing another embodiment of attaching a coping.

FIG. 7 is a longitudinal sectional view showing another embodiment of the uppermost seamless mounting.

[Explanation of symbols]

2: cubic, 4: topless, 5: middle, 6: panel, 7: curtain wall, 8: kasagi, 11: upper hollow, 16: drain hole, 17: upper groove, 30 … Cubic material, 3
2 ... concave groove, 33 ... sealer, 35 ... drain hole, 36 ... groove closing material, 39 ... inflow port, 49 ... drain block, 43 ... drain port.

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁶ , DB name) E04B 2/96 E04B 1/64

Claims (1)

(57) [Claims] 1. An uppermost stitch and a middle stitch are connected between left and right adjacent cubicles, and a panel is mounted between the uppermost stitch, the middle stitch and the left and right adjacent cubicles. A curtain wall, wherein the uppermost mesh has a hollow portion near the upper portion thereof, and a drain hole for introducing rainwater or the like flowing along the uppermost meshless portion toward the upper portion is formed, The shape of the cubic has a groove continuously open in its vertical direction in the blind mounting surface, and the topmost blind in the cubic blind mounting surface is open so that its hollow portion communicates with the groove. The intermediate portion is formed into a shape having an upper concave groove opened on the upper surface thereof, and a drain outlet is formed to open the upper concave groove to the outside of the room. An upper concave groove is connected to the blind mounting surface by opening communication with the concave groove, and an intermediate portion in the cubic concave groove An uppermost drainage structure of a curtain wall, wherein a drainage block for flowing rainwater or the like flowing along the concave groove into an intermediate upper concave groove is attached to the seamless connection portion.