JPH0241211Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Field of Application] This invention relates to the upper and lower connecting portions of vertically divided mullions in a curtain wall.

[Prior art]

The conventional upper and lower mullion joints are, for example,
As disclosed in Publication No. 34424, the upper and lower mullion components are simply joined together to form a mullion, and this mullion is fixed to the fastener via a backing plate attached to the inner surface of the mullion component. However, when an external force such as wind pressure acts on the curtain wall in an out-of-plane direction, the strength of the backing plate is insufficient, so the strength of the connection between the fastener and the mullions at the connection part with the slab, that is, the fastener part, is poor. Furthermore, the installation of the curtain wall itself has become a concern with respect to external forces in the out-of-plane direction.

Further, although the intervals between the mullion members on the indoor side are constant, the intervals cannot be regulated on the outdoor side, resulting in the disadvantage that these mullion members are spread out.

[Purpose of the invention] This invention was devised in view of the above-mentioned conventional circumstances, and its purpose is to provide a structure with sufficient strength against external forces in the out-of-plane direction, and to absorb displacement due to thermal expansion of the mullion constituent members. It is an object of the present invention to provide a connection part between an upper and lower mullion in a divided mullion, which can be easily constructed, has good workability, and can regulate the interval between the mullion constituent members at a constant position at an outdoor side position.

[Structure of the idea]

The connecting portion of the upper and lower mullions in the divided mullion according to this invention is formed by forming panel mounting grooves 25, 25' in the base pieces 22, 22' of one mullion component 20 and the other mullion component 21, respectively. In addition, indoor flanges 23, 23' and outdoor flanges 24, 2 are provided at both ends of these base pieces 22, 22'.
4' protrudes toward the adjacent mullion component,
The indoor flanges 23, 23' and the outdoor flanges 24, 24' are engaged with each other to form a mullion 1, and this mullion 1 is fixed to the slab 6 via fasteners. One joint sleeve 31 is formed in a bent state.
The mullions 1, 1 are vertically connected continuously through the other joint sleeve 32 having a hollow part B on the indoor side. mullion component 21
Fitting the one joint sleeve 31 and the other joint sleeve 32 onto the inner surfaces of the joint sleeves, respectively,
In the indoor position, the joint sleeves 31 and 32 and the mullion component 2 are
0 and 21 are fixed to the slab 6 side via the bracket 53 with two bolts 54'', and the panel mounting grooves 25 and 2 of each mullion component member 20 and 21 are fixed.
At the rear position of 5', one of the joint sleeves 31 and 32 is fixed with a screw 46, and the connection between the bracket 53, the mullion component 21, and the joint sleeve 32 is made in the hollow part B of the joint sleeve 32. This is done by screwing a bolt 54'' into each of the mullion components 20, 21.
At the outdoor side position, a holding member 43 having an upwardly opening engagement groove 45 is fixed to one of the joint sleeves 32, and the lower end of the other joint sleeve 31 is inserted into the engagement groove 45. It is engaged.

[Example] This invention will be described below based on an example shown in the drawings.

FIG. 1 is a schematic overall front view of a building using a curtain wall, and FIG. 2 is a sectional view taken along the - line in FIG. 1. The curtain wall has a rectangular frame made up of a plurality of mullions 1 extending vertically and spaced from side to side, horizontal members 2 that span horizontally between the mullions 1, and cross-sections 3. . The mullions 1 are fixed to the slabs 6 that partition each floor with fasteners 9, and between the cross members 2 of the frame section and the latches 3 there are spandrels 5 that hide the slabs 6, and revolving windows, casement windows, and fixed windows. Window components 4 such as the above are attached alternately.

A floor material 11 is stretched on the upper surface of the slab 6, and a ceiling 10 is provided on the lower surface.
An indoor space A is formed between the spandrels 5 and 5, and a fireproof panel 12 is attached to the rear surface of the spandrel 5. A cap 8 is attached to the top of the building, spanning the parapet 7 and the horizontal members 2.

FIG. 3 shows a sectional view taken along the line -- in FIG. 1, that is, a cross section of the mullion. The mullion 1 has a pair of left and right mullion constituent members 20, 21 and each mullion constituent member 20, 2.
1, and short joint sleeves 31 and 32 respectively disposed on the inner surface thereof. One mullion member (left side in the figure) 20 has a base piece 22 extending in the out-of-plane direction, an indoor flange 23 extending from both ends of the base piece 22 toward the other mullion member (right side in the figure) 21, The base piece 22 has a panel mounting groove 25 in the middle part, and the indoor side flange 23 has a substantially U-shaped cross section.
Projecting pieces 26 and 27 are provided near the ends of the flange 24 and the outdoor side flange 24, respectively, to form a corner 29. The other mullion component 21 also has a roughly cross-sectional shape due to a base piece 22' extending in an out-of-plane direction, an indoor flange 23 and an outdoor flange 24' extending from both ends of the base piece 22' toward the one mullion component 20 side. It is formed in a U-shape, and a panel mounting groove 25' is provided in the middle part of the base piece 22' in correspondence with the panel mounting groove 25. In the panel mounting grooves 25, 25', a face member constituting the spandrel is mounted. Bent pieces 28, 28 are formed continuously on each flange 23', 24' near the ends of the indoor side flange 23' and the outdoor side flange 24', and a tight material 30 is attached to the tips of the bent pieces 28, 28. , 30 are attached, and with the tight material 30 in pressure contact with the corner 29, the left and right mullus constituent members 2 are attached.
0 and 21 are engaged.

One joint sleeve 31 is disposed on the inner surface of one mullion component 20, and the other joint sleeve 32 is disposed on the inner surface of the other mullion component 21. Into sleeve 3
1 and 32 are connected by a screw 46 at the center in the out-of-plane direction. In other words, one joint sleeve 3
1 is a bent plate-like member with a recess 34 formed at a position corresponding to the panel mounting groove 25 of one of the mullion component members 20 in the middle part of a base piece 33 extending in an out-of-plane direction. A pair of protruding pieces 35, 35 are provided on the bottom wall 39 of 34 continuously from the bottom wall 39 in an out-of-plane direction. In addition, a large number of small protrusions 38 are provided on the front and back surfaces to prevent metal contact with the mullion component 20. The other joint sleeve 32 has a base piece 3 extending in an out-of-plane direction.
A hollow part B surrounded by the horizontal pieces 36, 36, the vertical piece 37 and the base piece 33' is formed on the indoor side of the base piece 3'.
A hollow part B' surrounded by horizontal pieces 36', 36', vertical pieces 37' and base piece 33' is also formed on the outdoor side of 3', and a base piece 33' is formed between both middle parts B, B'. Horizontal pieces 36, 36'
The joint sleeve 32 has a concave portion 34' that corresponds to the panel mounting groove 25' of the other mullion component 21, which is surrounded by be.

The screw 46 mentioned above has a head 46 as shown in FIG.
a and a shaft portion 46b, and the shaft portion 46b is comprised of a threaded portion 46c at the tip and a large diameter portion 46d for maintaining the distance between the joint sleeves 31 and 32.

An elongated hole 65 for inserting a screw 46 is formed in the bottom wall of the panel mounting groove 25 of one of the mullusal components 20.

A substantially L-shaped holding member 43 is fixed to the base piece 33' constituting the intermediate portion B' on the outdoor side, and the holding member 43 is attached to a base plate 47 attached to the joint sleeve 32 as shown in FIG. An engagement groove 45 is formed upwardly between the upward piece 44 and the substrate 47, and is provided at the lower end of the protruding piece 35 of the other backing plate 31. The notch 49 engages with the engagement groove 45.

The mullion members 20, 21 are fixed to the front surface of the slab 6 via joint sleeves 31, 32. A primary fastener 50 with left and right bolts 54 protruding is buried in the front surface of the slab 6, and a reference fastener 51 is fixed to the top surface of the primary fastener 50 by passing the bolt 54 through a long hole 57 in the out-of-plane direction. installed. Since the width of the elongated hole 57 is set larger than the diameter of the bolt 54, the reference fastener 51 can be attached to the primary fastener 50 so that its position can be adjusted both in the out-of-plane direction and in the left-right direction. The reference fastener 51 has an in-plane elongated hole 57' and a locking part 58 bent downward.
The secondary fastener 52 with
6 and an elongated hole 57' with a bolt 54' screwed into the reference fastener 51 so that the position can be adjusted in the in-plane direction. Further secondary fastener 5
A pair of left and right holding plates 64, 64 are erected at the side ends of 2, and a through bolt 55 is inserted through both the holding plates 64, 64. The aforementioned mullion component 2
Brackets 53, 53 are fixed to 0, 21, and two bolts 54'' are screwed into the mullion component members 20, 21, joint sleeves 31, 32, and brackets 53, 53 to the back plate. , 54'' and integrated. Further, the other bolt 54'' is screwed into the indoor intermediate portion B of the other joint sleeve 32. The tertiary fastener 5
2, 53 have long grooves 59, 5 that open downward.
9 are formed, and both ends of the through bolt 55 are engaged with these long grooves 59, 59, so that the mullion is vertically adjustable and suspended from the secondary fastener.

Attachments 40 having protrusions 41 are attached to the outer surfaces of the base pieces 22, 22' of the mullion structural members 20, 21 at a plurality of locations in the longitudinal direction.
The side edges of the fireproof panel placed between the mullions 1 and 1 are held by the holding members 42 and 0.

FIG. 5 is a cross-sectional view taken along the - line in FIG.
0,71 are provided, and the upward concave groove 7 of the lower waist 3
0 and the downward groove 71 of the horizontal member 2, a window component (rotating window in the figure) 4 is installed, and the downward groove 71 of the waist member 3 and the upward groove 70 of the horizontal member 2 are installed. A face material constituting the spandrel 5 is attached between the two. A dining plate base 62 is attached to the indoor side of the waistband 3, and a dining plate 63 is attached to the indoor side of the dining plate base 62. An attachment 73 and a circumferential edge 74 on the indoor side of the attachment 72 are attached to the indoor side of the cross member 2, and the ceiling material 10 is fixed to the circumferential edge 74. The attachment 73 includes a vertical piece 75 and a mounting piece 76.
The fireproof panel 12 is mounted and supported on the mounting piece 76. The upper end of the fireproof panel 12 is a tray plate 62
It faces the space between the fireproof panel 12 and the attachment 77, and is designed to absorb displacement of the fireproof panel 12. The fireproof panel 12 is a single plate having approximately the same length as the spandrels 5, and serves as a decorative board. A fireproof material 61 is provided between the fireproof panel 12, the waist joint 3, and the cross member 2.

The joint sleeves 31 and 32 connect the mullion component member 20 and the mullion member 20 at the joint position between the mullion 1 and the slab 6.
21, located on the inner surface of the bottom mullion 1 in Figure 2.
In this case, it is arranged at a position corresponding to the lowest slab 6 and at the upper end of the lowermost mullion 1, in the middle mullion 1 it partially protrudes from the upper end of the mullion as shown in Fig. 6, and in the uppermost mullion it is located near the upper end. It is installed inside the mullion.

Next, the assembly order of the divided mullions will be explained using an intermediate mullion as an example. A joint sleeve 32 is attached to the inner surface of the mullust component 21 to which the bracket is fixed.
is fixed with a bolt 54'' with the upper part protruding from the mullion, and the joint sleeve 32
A holding member 43 is provided below the base piece 33'.
A bracket 53 and a joint sleeve 31 whose tip protrudes from the mullion component 20 are also fixed to the mullion component 20, and a notch 49 is formed at the lower end of the outdoor side projecting piece 35 of the joint sleeve 31. There is.

When assembling, as shown in FIG. 8, first, the outdoor side flange 24 of the mullion component 20 is engaged with the outdoor bent piece 28 of the mullion component 21 already attached to the slab 6, and the outdoor side tight material 30 is assembled. is pressed against the corner 29, and then the indoor flange 23 of the mullion component 20 is attached to the indoor flange 2 of the mullion component 21.
3', and a tight material 30 is pressed against the corner 29. After the mullion constituent members 20 and 21 are engaged on the indoor side and the outdoor side in this way, the mullion constituent member 20 and 21 are
is shifted downward to engage the notch 49 and the engagement groove 45 of the holding member 43. At this time, the mullion component 2
The long groove 59 of the bracket 53 is the through bolt 55.
engage with. After that, the screw 46 is inserted through the elongated hole 65 to connect both joint sleeves 31 and 32.

This invention has the above-mentioned structure, and in the connecting part of the left and right mullions in a divided mullion, one has a bent shape of a plate-like member without a hollow part, and the other has a pair of joints with a hollow part B. Into sleeve 31,
32 is used as a connecting member, so when an external force is applied in the wind pressure direction, that is, in a direction perpendicular to the curtain wall, the strength is maintained by the hollow part B, and when assembling the mullion, it is possible to Since the joint sleeve 31 is elastically deformed, construction is easy.

Further, since the double-standing structural members 20 and 21 are configured to prevent opening on the outdoor side by engaging the holding member 43 provided on the joint sleeve 32 and the joint sleeve 31, no special screw fixing is required. Assembling the double-sided structural members 20 and 21 is simple, and the engagement groove 45 of the holding member 44 is formed slightly wide, so that it can absorb the thermal expansion of the cross member and the cross member. ing.

Projection 38 on the outer surface of joint sleeves 31, 32
This effectively prevents metal contact with the mullion constituent members 20, 21, reduces abnormal noise from the mullion connection part, and serves for positioning when attaching the back plate for bolt insertion and the holding member 43.

The connection between the bracket 53, the mullion component 21, and the joint sleeve 32 is made through the hollow part B of the joint sleeve 32, so that it is strong.

The large diameter portion 46d of the screw 46 connecting both joint sleeves 31 and 32 is connected to the joint sleeve 3.
The elongated hole 6 of the mullusoidal component 20 has a function of keeping the distance between the parts 1 and 32 constant and is used for inserting the screw 46.
5 absorbs the thermal expansion of the mullions.

[Effect of idea]

Each joint sleeve is fitted to the back surface of each mullion component to form a mullion, and at the indoor side position of this mullion, the mullion component and the joint sleeve are fixed to the fastener with bolts,
In addition, the mullion component members and joint sleeves are fixed with screws at the center position of the mullion, and the joint sleeves are engaged with each other by the holding member at the outdoor side position of the mullion. The mullion components, joint sleeves, and joint sleeves can be firmly connected at three locations: the indoor side, center, and outdoor side of the mullion, making it possible to create a mullion with great rigidity even though it is a divided mullion. Obtainable.

In addition, at the outdoor side of the mullion, the joint sleeves that are integrally fixed to each mullion component are integrally connected via the holding member, so that the outdoor side of each mullion component The strength of the engaging part between the flanges is increased, and as a result, this part can firmly maintain the engaged state even under positive and negative pressure caused by strong winds, and can prevent wind and rain from entering from this part. be.

Furthermore, a holding member having an engagement that opens upward is fixed to one of the joint sleeves, and the lower end of the other joint sleeve is engaged with the engagement. When assembling mullion components equipped with inner sleeves by engaging each other, the indoor flanges of each mullion component and the outdoor flanges of each mullion component are engaged and temporarily held together, and then one side When the upright component is moved downward, the lower end of the joint sleeve of this mullion component engages with the engagement groove of the holding member fixed to the joint sleeve of the other mullion component. As a result, assembly and construction can be performed extremely easily and reliably.

In particular, since a pair of joint sleeves 31 and 32, one of which has a hollow part B and the other has a bent shape of a plate-like member without a hollow part, are combined as a connecting member, external forces in the wind pressure resistance direction, that is, the out-of-plane direction are reduced. When working, the strength is maintained by the hollow part B, and when assembling the mullion, the joint sleeve 31, which is a bent plate member, deforms elastically, so construction is easy.

Further, the connection between the bracket 53, the mullust member 12, and the joint sleeve 32 is made through the hollow portion B of the joint sleeve 32, so that the connection is strong.

[Brief explanation of the drawing]

Figure 1 is an overall front view of a building using a curtain wall, Figure 2 is a sectional view taken along the - line in Figure 1, Figure 3 is a sectional view taken along the - line in Figure 1 showing the mullion joint, and Figure 4 5 is a partially cutaway side view showing the joint between the mullion and the slab, FIG. 5 is a sectional view taken along the line - - in FIG. 1, and FIG. 6 is the intermediate mullion showing the state before the mullions are connected. FIG. 7 is a perspective view showing a state in which the left and right mullion components are combined;
Figure 8 is a schematic front view showing the construction state of the curtain wall, Figure 9 is a vertical cross-sectional view of the mullion joint, and Figure 10 is a longitudinal sectional view of the mullion joint.
The figure is a front view showing the screw. A... Indoor space, B, B'... Hollow part, 1...
Mullet, 2...Horizontal material, 3...Kishimume, 4...Window component material, 5...Spandrel, 6...Slab, 7...
Parapet, 8...Kasagi, 9...Fasner, 1
0... Ceiling material, 11... Flooring material, 12... Fireproof panel, 20, 21... Mullust component, 22, 22'
... Base piece, 23, 23' ... Indoor side flange, 2
4, 24'... Outdoor flange, 25, 25'...
Panel mounting groove, 26, 27... Protruding piece, 28... Bent piece, 29... Corner, 30... Tight material, 31,
32... Joint sleeve, 33, 33'...
Base piece, 34, 34'... recess, 35... protruding piece,
36, 36'...horizontal piece, 37,37'...vertical piece, 3
8... Protrusion, 39, 39'... Bottom wall, 40... Attachment, 41... Protruding piece, 42... Holding material,
43... Holding member, 44... Upward piece, 45... Engaging groove, 46... Screw, 46a... Screw head, 4
6b...screw shaft part, 46c...screw thread part,
46d... Large diameter part of screw, 47... Board, 48...
...Bent piece, 49...Notch, 50...Primary fastener, 51...Reference fastener, 52...Secondary fastener, 53...Bracket, 54, 54',
54″...Bolt, 55...Through bolt, 56...
... Pressing plate, 57, 57' ... Long hole, 58 ... Locking part, 59 ... Long groove, 60 ... Sealing material, 61 ...
Fireproof material, 62... Serving board base, 63... Serving board, 6
4... Retention plate, 65... Long hole, 70, 71... Concave groove, 73... Attachment, 74... Surrounding edge,
75... Vertical piece, 76... Placement piece, 77... Attachment.

Claims (1)

[Scope of utility model registration request] Panel mounting grooves 25 and 25' are formed in the base pieces 22 and 22' of one mullion component 20 and the other mullion component 21, respectively, and panel mounting grooves 25 and 25' are formed at both ends of these base pieces 22 and 22'. Indoor side flange 23,
23' and the outdoor flanges 24, 24' are provided to protrude toward the adjacent mullion components, and the indoor flanges 23, 23' and the outdoor flanges 24, 24' are engaged with each other. Standing 1,
This mullion 1 is fixed to the slab 6 via a fastener, and one joint sleeve 31 is made of a short plate-like member bent and the other joint sleeve 32 has a hollow part B on the indoor side.
The mullions 1, 1 are connected continuously in the vertical direction through the joint sleeves on the inner surfaces of the one mullion component 20 and the other mullion component 21, respectively. 31 and the other joint sleeve 32 are fitted together, and in the indoor position, the respective joint sleeves 31, 32 and mullion components 20, 21 are fitted together.
It is fixed to the slab 6 side via the bracket 53 by the bolt 54'' at the location, and one of the joint sleeves 31 is fixed at the back side of the panel mounting grooves 25, 25' of each of the mullion components 20, 21.
and the other joint sleeve 32 are fixed with screws 46, and the bracket 53, the mullion component 21, and the joint sleeve 32 are connected by screwing a bolt 54'' into the hollow part B of the joint sleeve 32. Further, at the outdoor side position of each of the mullion constituent members 20 and 21, a holding member 43 having an engaging groove 45 that opens upward is fixed to one of the joint sleeves 32, and the above-mentioned The upper and lower connecting portion of the split mullion is characterized in that the lower end of the other joint sleeve 31 is engaged with the engaging groove 45.