JP2001311251A - Curtain wall structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To achieve labor saving and improve the efficiency of connecting work between a mullion and a transom of a knock-down system curtain wall structure. SOLUTION: According to the curtain wall structure in which the transoms 3 are connected together via transom brackets 25 and 26 fixed to the mullion 2, the mullion 2 has projective pieces 2d and 2e formed at both side edges on an indoor side surface, and notch portions 2g and 2h formed in the projective pieces 2d and 2e at locations corresponding to respective transom connection portions. Further, the mullion has a connecting bolt hole 2f formed therein in a direction perpendicular to indoor/outdoor directions. The transom brackets 25 and 26 have rotation preventive engaging projections 25d and 26d formed on side edges on outdoor side surfaces thereof, respectively. Thus,the curtain wall is fixed by a connecting bolt 27 penetrating the connection bolt hole 2f while the rotation preventive engaging projections 25d and 26d are engaged with the respective notch portions 2g and 2h of the mullion 2.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a knock-down type curtain wall structure in which the work of connecting the cubic and the blind can be labor-saving and efficient.

[0002]

2. Description of the Related Art Conventionally, when constructing an outer wall of a building by a curtain wall method, a curtain wall unit having four frames previously framed by a frame material is attached in order.
The so-called unit method and the so-called knock-down method, in which, when cubicles are attached to the skeleton at the construction site, a blind frame is attached between these cubicles to form an opening frame, and curtain wall panels are attached to each opening Has been done.

[0003]

The former unit method is to mount a frame-shaped panel unit in which a cubic and a blind are assembled in advance, so that the construction is efficient. On the other hand, the knock-down method of the latter has the disadvantage of complicating the water-stopping structure, etc., but the structure is simplified, but the connection between the cubic and the blind must be performed at the site. There was a problem that the work was not labor-saving and efficient because the structure required much time and effort.

On the other hand, in recent years, a structure in which a cubic or blind eye is exposed to the indoor side has been gradually adopted from the viewpoint of design, openness and daylighting. In the case of the connection structure, there were problems such as poor appearance in design. That is, as a connection structure between the cubic and the eyeless, a lip-shaped groove for fitting a connecting bolt head is formed on the back side of the eyeless, and the bolt head is fitted into the lip-shaped groove. The structure in which the combined connection bolts are fixed to the cubic bracket is mainly employed, but since the blind is a molded material that is extruded, the lip-shaped groove protrudes toward the indoor side along the longitudinal direction of the member. Is formed, and the appearance is poor. In this case, a decorative cover is attached along the longitudinal direction of the member in order to cover the lip-shaped groove, but the production cost and the installation time of such a decorative cover are separately required.

Therefore, a main object of the present invention is to reduce the labor and efficiency of the work of connecting a cubic and a blind in a knockdown type curtain wall structure, and to make the blind surface of a blind room a smooth surface. It is an object of the present invention to provide a curtain wall structure that can be designed and does not impair the design even when exposed to the indoor side.

[0006]

SUMMARY OF THE INVENTION The present invention for solving the above-mentioned problems is based on the object of the present invention. In a curtain wall structure constructed by a procedure for attaching a curtain wall panel to a frame, and connected through a blind mounting bracket in which the blinds are fixed in a manner, the orients are provided with outdoor outdoor surfaces. Protrusions are provided on both side edges along the longitudinal direction of the member, and cutouts are formed in the protruding pieces over a predetermined length section at the blind connection portion, and connected in a direction orthogonal to the indoor and outdoor directions. The blind mounting bracket, which is formed with a bolt hole and is attached to the blind joint portion, has a rotation preventing engagement projection for positioning and being formed on the side edge of the outdoor surface. Rotation prevention It is characterized in that the use engagement projection is fixed by connecting bolts penetrating the side elevational of the notch to engage the coupling bolt holes in a state allowed.

In the present invention, the rotation-preventing engagement projection formed on the blind mounting bracket is positioned while being engaged with the cubic notch, thereby being inclined with respect to a predetermined position. It will be possible to position vertically and precisely. In addition, even if a load is applied from a blind eye, since the rotation preventing engagement projections are engaged along the vertical plane, the blind mounting bracket is not rotationally displaced around the connection bolt, but is simply It is sufficient to fix with one connecting bolt. Therefore, it is possible to greatly reduce labor and efficiency as compared with the conventional method in which the mounting of the blind mounting bracket is performed using at least two or more connecting bolts.

In addition, a lip-shaped groove is formed along the longitudinal direction of the member on the back side of the hollow interior, and communicates with the lip-shaped groove from the outside at an end on the back side. A bolt head insertion hole having a large height and a bolt head holding hole having a relatively small height connected to the hole are formed, and the head of the blind mounting bolt is inserted from the bolt head insertion hole. Then, the head is slid to the bolt head holding hole side so that the head cannot be removed, and the shaft portion of the blind mounting bolt projecting to the indoor side is fastened to the blind mounting bracket. Thus, it is not necessary to form a bad-looking lip groove on the rear surface of the blind indoor side, and the design is not impaired even when exposed to the indoor side. In this case, it is sufficient to attach only a small corner cover that surrounds the blind mounting bracket at the connecting portion between the cubic and the blind.

[0009] Further, a load supporting projection is formed on the outdoor surface of the blind mounting bracket, and the load supporting projection is fitted into the bolt head fitting hole in a state of connection with the blind. By employing a structure in which the load from the blinds is shared and supported together with the blind mounting bolts, the blinds can be reliably supported by a single blind mounting bolt.

[0010]

Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is an overall vertical sectional view of a curtain wall 1A including a building frame, FIG. 2 is a perspective view of a main part of the curtain wall 1A, and FIG. 3 is a vertical sectional view thereof.

[0011] The curtain wall 1A is supported by cubic supports 8 fixed to the ends of the building frame (floor F).
... are fixed, the blinds 3, 3 ... are bridged at predetermined intervals in the vertical direction between the squares 2, 2, and the vertical frame 36 is attached to the outdoor surface of the square 2 to form an opening frame. Then, as shown in FIG. 4, after attaching the side frame 40 to the outdoor wall of the vertical frame 36, the glass G is fitted into the fitting grooves of the blanks 3, 3, and the glass side edge is moved to the side. The curtain wall has a structure fixed by the pressing edges 42 and 43 attached to the frame 40. Thereafter, the vertical lines are relatively emphasized by attaching the vertical joint cover material 44 between the vertical joints of the glasses G, G.

Hereinafter, the structure of each part will be described in detail while specifically following the construction procedure. As shown in FIG. 4 and the like, the cubic 2 has a substantially rectangular cross section having a partition wall in the inner space and two hollow chambers. It is a shape material with 2
The central lip-shaped groove 2a is formed by the ridges, and the side lip-shaped grooves 2b, 2c are formed by two ridges on both sides of the central lip-shaped groove 2a. The center lip groove 2a is a groove for fitting a head 37a of a vertical frame bolt 37 for fixing the vertical frame 36, and the side lip-shaped grooves 2b, 2c are tight rubbers 11, 11.
Is a groove for fitting and supporting. Further, projecting pieces 2d and 2e are formed on both side edges of the outdoor wall surface to engage with the vertical frame 36 along the longitudinal direction of the member.

The ridge 2 is supported by a ridge support 8 fixed to an end of the floor F. Specifically, as shown in FIGS. 5 and 6, an anchor fitting 12 is embedded and fixed to an end of the frame F, a head is fitted and supported by the anchor fitting 12, and a screw part is externally mounted. Bolt 14 and nut 14B provided so as to protrude therefrom
The fastener 13 is fixed by means of a screw, while a mounting bracket 18 is fixed to the upper side of the cubic 2 by bolts 19, 19, and a fixing is performed with the liner metal 16 interposed between the mounting bracket 18 and the fastener 13. Fastened by bolts 15 and nuts 15B. A female screw cylinder 18a is integrally supported on the upper part of the mounting bracket 18, and an upper flange in which a tip of a vertical adjustment bolt 17 screwed into the female screw cylinder 18a extends from the liner bracket 16. By abutting the piece 16a on the horizontal surface, the vertical installation of the cubicle 2 is adjusted at the time of installation.

The curtain wall supporting portion is provided for each floor, and the lower half portion is fitted to two lower cubic heads relatively to each other, and the joining members 20 fixed by bolts 19 and 22 are provided. The continuity of the ridge 2 is ensured by inserting the upper part of the ridge 21 into the hollow portion of the upper flank 2. As shown in detail in FIG. 7, the outside gap of the joint gap between the cubicles 2 and 2 is provided on the indoor side from the lip-shaped grooves 2a to 2c forming portions which are structurally made equal in pressure with the outside. An airtight rubber 24 is provided for the purpose of shutting off airflow to the air.

When the fixation of the cubic 2 is completed, the blinds 3, 3,... As shown in FIG. 8,
Brackets 25 and 26 for blind mounting fixed to the cubicle 2
(Hereinafter referred to as blind bracket). The blind bracket 25 is a piece-shaped member having an L-shaped cross section.
A rectangular load supporting projection 25a (hereinafter, simply referred to as a self-weight receiving projection) for sharing and supporting an blind load is formed on the blind side contact surface, and a blind bolt insertion hole 25b.
Is formed, and a rotation-preventing engagement convex portion 25 for preventing rotational displacement of the blind bracket 25 along a bent ridge line portion.
d (hereinafter, simply referred to as engagement projections).
A cubic bolt insertion hole 25c is formed in the cubic contact surface. Further, screw pockets 25e and 25 are provided along the longitudinal direction for attaching the cover member 34 at the end of each side.
f is formed. It should be noted that the blind bolt insertion hole 25b may be a lateral U-shaped notch groove that opens laterally instead of a hole. The blind bracket 26 is the same as the blind bracket 25 and is used in a symmetrical arrangement.

On the other hand, a connecting bolt hole 2f is formed at the blind joint portion for attaching the blind brackets 25 and 26 on the side of the cubicle 2, and the outside of the cubic 2 is longitudinally formed at the edge. Notches 2 corresponding to the height dimensions of the blind brackets 25 and 26 with respect to the protrusions 2d and 2e formed along the direction.
g and 2h are formed in advance. The notches 2g and 2h serve to position the blind brackets 25 and 26,
The purpose is to support the weight of the blinds 3 and prevent rotational displacement of the blind brackets 25 and 26 in the mounted state.

As shown in FIG. 9, the blind brackets 25 and 26 engage the engaging projections 25d and 26d of the blind brackets 25 and 26 with the notches 2g and 2h of the cubic 2, respectively. After positioning, the blind bolt insertion hole 25
c, 26c and a single cubic bolt 27 penetrating through the connecting bolt hole 2f, and a washer 28 and a nut 29
Is screwed into the tip of the bolt and fastened. By employing such a structure for attaching the blind brackets 25 and 26, the work can be saved. That is, the blind brackets 25, 26 are positioned vertically and precisely without being inclined with respect to a predetermined position by arranging the engaging ridges 25d, 26d while engaging the notches 2g, 2h of the ridge 2. The blind brackets 25 and 26 can be rotationally displaced about the cubic bolt 27 by the engagement of the engaging ridges 25d and 26d even when a load is applied from the blind 3. Not just 1
It will be sufficient if it is fixed by the cubic bolt 27 of the book. The attachment of the blind bracket can greatly reduce labor and improve efficiency as compared with the conventional method in which fixing is performed using at least two bolts.

After fixing the blind brackets 25 and 26, the blind 3 is mounted as shown in FIG. A lip-shaped groove 3a is formed on the back side of the hollow interior of the blind 3 and an opening communicating with the lip-shaped groove 3a is formed on the back side of the end of the blind 3; A large bolt head fitting hole 3b and a bolt head holding hole 3c having a relatively small height dimension and continuing therefrom are formed. As shown in FIG.
0a is inserted through the bolt head insertion hole 3b, and is slid horizontally as it is to position the bolt head holding hole 3c. Then, the screw portion 30b of the eyeless bolt 30 is inserted into the eyelet bolt insertion hole 25b of the eyeless bracket 25, 26.
6b and fastened with a washer 31 and a nut 32 on the back side. At this time, the blind bracket 2
The self-weight receiving projections 25a are fitted into the bolt head fitting holes 3b of the eyeless 3 and their height dimensions are aligned.
Not only that, it is also transmitted from the self-weight receiving projection 25a. The blind brackets 25, 2
When the device 6 is attached to the cubicle 2 in advance and then carried into the site, labor saving and efficiency can be further improved.

Next, as shown in FIGS. 11 and 12, the corner covers 33 and 34 are attached to complete the attaching work of the eyeless 3. The corner cover 33 is a U-shaped member having substantially triangular upper and lower flange plates 33b and 33c extending from an upper edge and a lower edge of a substantially square front plate 33a. Blind bracket 2
Screw holes 33d and 33e for fixing to 6 are formed. The corresponding reference numerals are given to the corner covers 34, and the description thereof will be omitted. The corner cover 3
3 and 34 are positioned at the corners so as to surround the blind brackets 25 and 26, the screw holes 33d,
Screws (not shown) inserted from 33e are screwed into screw pockets 26e, 26f of the blind brackets 25, 26 to fix the screws.

[0020] The transom 3, as shown in FIG. 3, the cross section shape in the upper transom 3 ₁ and the lower transom 3 _second window is slightly different, in structure exactly the same as is there. That is, a rectangular hollow portion is formed in two steps vertically on the indoor side, and a lip-shaped groove 3a for fitting the head 30a of the blind bolt 30 is formed on one side of the rectangular hollow portion. A fitting groove 3d for the upper glass G is formed, and a fitting groove 3e for the lower glass G is formed. The glass G is fixed so as to be sandwiched by the glass support members 35, 35 arranged on the outside and inside of the fitting grooves 3d, 3e, respectively, across the glass surface.

When the mounting of the blinds 3, 3 ... is completed,
As shown in FIG. 13, a vertical frame 36
(36A to 36C) are attached. Square one unit length of the upright 2 is just, is a floor height equivalent length, and the upper transom 3 ₁ and the lower transom 3 ₂ respectively connected to upper and lower portions, transom 3 of the upper and lower
_A vertical frame 36B is attached to a portion serving as a window between the _first and _second windows 32. On the other hand, vertical frames 36A and 36C are attached to upper and lower portions where a waist wall 70 is provided at a portion straddling the floor F.
Although the vertical frame 36B and the vertical frames 36A and 36C have slightly different cross-sectional shapes, they have in common that glass support portions 36a and 36b are provided on both sides of the outdoor gutter. The lip-shaped groove 2 formed on the outside surface of the cubic 2
a, the head 37a of the vertical frame bolt 37 is fitted therein, and the screw is made to protrude to the outside. The bolt hole formed in the vertical frame 36 is passed through this, and the washer and nut 38
To conclude. In addition, drainage 39 is fitted in the gap portion between the eyes 3 and 3.

Further, following the mounting of the vertical frame 36, the side frames 40 (40A to 40C) are mounted on the outside wall of the vertical frame 36. As shown in FIG. 4, the side frame 40 has a substantially H-shaped cross-section, and the indoor side piece abuts against the outside wall of the vertical frame 36 and is fixed by screws 41, 41. Just at the center of the boundary between the glasses G, G, the surfaces facing the glass G side are provided with ridge fitting grooves 40a, 40b, respectively. FIG. 14 is a view showing a state where the mounting of the side frame 40 is completed.

At this stage, a fitting groove for fitting the glass G is completed, and as shown in FIG. 15, the blinds 3, 3,... In order to fit the glass G into the opening surrounded by the so-called Kendon method and press down both side edges of the glass G,
Ridge 42 (42A-42C), 43 (43A-43C)
Attach. The outside facing surface of one of the ridges 42 has a section L
An L-shaped bent piece 42a is formed, and the opening direction of the bent piece 42a is the same as that of the bent piece 42a on the outdoor curved surface of the other pressing edge 43.
A letter-shaped bent piece 43a is formed. These bent pieces 42
a and 43a are used for attaching the vertical joint cover material 44.

When the mounting operation of the glass G is completed in the above manner, the vertical joint cover members 44 (44A, 44B) for emphasizing the vertical lines are fixed to the vertical joint portions. As shown in FIG. 4, the vertical joint cover material 44 is provided with the pressing edge 42 at one edge of the cover body 44a.
And a bent piece 44b that engages with the bent piece 42a of the cover body 44a.
Bent piece 44c engaged with the third L-shaped bent piece 43a
And mounting and supporting leg pieces 44d substantially at the center of the back surface.
It has. FIG. 1 shows the mounting support leg piece 44d.
As shown in FIG. 6, a concave notch 44e is formed at a predetermined location, and a slit-like notch 44f is formed continuously above the concave notch 44e. On the other hand, prior to the attachment of the vertical joint cover member 44, the mounting support leg piece 44 is provided in the recess of the side frame 40.
As shown in FIG. 17, the locking pieces 45 are fixed to the positions corresponding to d by screws or the like.

When attaching the vertical joint cover member 44, the attachment supporting leg piece 44d is
After being locked at 5, 45..., By sliding the vertical joint cover material 44 in the horizontal direction, the bent piece 44 b is engaged with the bent piece 42 a of the
4c is engaged with the bent piece 43a of the pressing edge 43, and finally, a screw 46 that penetrates both the bent piece 44b and the bent piece 42a is screwed in, thereby being firmly fixed.

[0026]

As described in detail above, according to the present invention, in the knockdown type curtain wall structure, the work of connecting the cubic and the blind can be labor-saving and efficient, and the blind room The glue surface can be made a smooth surface, and even if it is exposed to the indoor side, the design is not impaired.

[Brief description of the drawings]

FIG. 1 is an overall vertical sectional view including a building frame of a curtain wall 1A.

FIG. 2 is a perspective view of a main part viewed from the front side of the curtain wall 1A.

FIG. 3 is a longitudinal sectional view thereof.

FIG. 4 is a cross-sectional view of a vertical joint.

FIG. 5 is an enlarged side view of a main part of the cubic support.

FIG. 6 is an enlarged plan view of a main part of the cubic support portion (viewed along the line VII-VII in FIG. 5).

FIG. 7 is a perspective view of a cubic joint part.

FIG. 8 is a diagram (part 1) illustrating a procedure for attaching a blind eye 3 to a cubic 2;

FIG. 9 is a diagram (part 2) illustrating a procedure for attaching a blind eye 3 to a cubic 2;

FIG. 10 is a diagram (part 3) illustrating a procedure for attaching a blind eye 3 to a cubic 2;

FIG. 11 is a diagram showing a procedure for attaching a cover material to the blind brackets 25 and 26.

FIG. 12 is a view showing a state in which the attachment of the blind 3 is completed.

FIG. 13 is a view showing how to attach the vertical frame 36 and the side frame 40 to the cubic 2;

FIG. 14 is a view showing a state where the mounting of the vertical frame 36 and the side frame 40 is completed.

FIG. 15 is a view showing how to attach the ridges 42 and 43.

16 is a view showing how to attach a vertical joint cover member 44. FIG.

FIG. 17 is a vertical sectional view of the vertical joint.

[Explanation of symbols]

1A ... curtain wall, 2 ... cubic, 3 ... blind, 8 ... cubic support bracket, 25/26 ... blind bracket, 36 ... vertical frame, 40 ... side frame, 42/43 ... pressing edge, 44 ... vertical joint Cover material

 ────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Haruhisa Kamada 1-11-1, Osaki, Shinagawa-ku, Tokyo Shin Nikkei Co., Ltd. F-term (reference) 2E002 NA01 NB02 PA01 QA04 QB01 QB04 QB06 QC05

Claims (4)

[Claims] When the cubicles are mounted on the frame, the framing is performed by attaching stitches between the cubicles to form an opening frame, and a curtain wall panel is attached to each of the opening frames. In a curtain wall structure in which the blinds are connected via blindless mounting brackets fixed to the ridge, the ridges include protrusions on both side edges of the outdoor gutter surface along the member longitudinal direction, A cutout portion is formed in the projecting piece over a predetermined length section at the blind connection portion, and a connection bolt hole is formed in a direction orthogonal to the indoor and outdoor directions, and attached to the blind connection portion. The blind mounting bracket has a positioning / rotation-preventing engagement projection formed at a side edge of an outdoor surface thereof, and the positioning / rotation-preventing engagement projection is formed by the rectangular cutout. State engaged with the part Curtain wall structure characterized in that it is fixed by connecting bolts penetrating the coupling bolt holes. 2. A lip-shaped groove is formed along the longitudinal direction of the member on the back side of the hollow interior, and communicates with the lip-shaped groove from the outside at an end on the back side. A bolt head insertion hole having a large height and a bolt head holding hole having a relatively small height continuous to the hole are formed, and the head of the blind mounting bolt is inserted from the bolt head insertion hole. 2. The bolt is slid to the bolt head holding hole side to make the head unremovable, and a shaft portion of a blind mounting bolt projecting toward the indoor side is fastened to the blind mounting bracket. The described curtain wall structure. 3. A load supporting projection is formed on an outdoor surface of the blind mounting bracket, and the load supporting projection is fitted into the bolt head fitting hole in a state of connection with the blind. 3. The curtain wall structure according to claim 2, wherein a load from the blind is shared and supported together with the blind mounting bolt. 4. The curtain wall structure according to claim 1, wherein a corner cover surrounding said blind mounting bracket is attached at a connection portion between said cubic and blind.