JPH02157342A - Protecting device for stone outer panel of curtain wall unit - Google Patents

Abstract

PURPOSE:To prevent the damage of a stone outer panel by forming the opposite edges of the stone outer panels with a vertical difference in level to the side edges of panel holding frames, and making the difference in level of the opposite edges larger than the set value of the side tip edge of the panel holding frame to provide a gap between the opposite edges extending over the whole length. CONSTITUTION:Opposite edges of stone outer panels 21 of an unit 1 are positioned vertically aside to edges on a frame side of attached members for holding frames 3, 4 of a frame base plate 2, and provided by plural sets in the longitudinal direction of the holding frame as the attached member so that they may freely abut each other through a fixing nut 18. Next, the stone outer panel 21 is extended downward to the frame base plate 2 to make each opposite edge form a downward difference in level to the frame side edge. A set space width l1 and the width of the difference l2 in level between the opposite edges shall keep the relation of l1<l2, and a gap 23 is insertedly provided in a series extending over the whole longitudinal length between the opposite edges with the difference l3 between l1 and l2. Thus the stone outer panel can be certainly protected.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a curtain wall unit that is fixed to a building, and particularly to a stone exterior panel protection device for a curtain wall unit.

[Conventional technology] When using granite or other stone exterior panels for the exterior of a building, this method shortens the construction period by replacing the conventional curtain wall uniform, which involves installing panels one after another at the building site. As a first dry method intended for ease of construction, a method has been proposed in which a curtain wall unit is constructed in advance and the curtain wall unit is installed in a building.

In this case, a curtain wall unit using one stone exterior panel consists of a steel frame of appropriate dimensions and multiple stone exterior panels of the same size on the front side of this frame, similar to those using other exterior materials. It is said to have been covered with panels.

[Problem to be solved by the invention] Naturally, curtain wall units are supposed to be lifted up by a crane and fixed in a predetermined position, but in the case of a curtain wall unit using a stone exterior panel, While the weight is large, you will have to adjust the predetermined position and install and fix it, and at this time, by moving it back and forth or moving it up and down, it will cause damage to the upper or lower curtain wall unit that has already been installed. It is difficult to avoid collisions between curtain wall units that are arranged continuously, and especially when two stone exterior panels collide with each other, cracks may occur due to the weak impact resistance of the material. Alternatively, it may be partially damaged, which may cause a delay in the construction period, is dangerous, and also causes an increase in replacement costs.

The present invention has been made in view of the above-mentioned problems of curtain wall units using stone exterior panels, which have relatively low impact resistance but are in increasing demand. To provide a simple and reliable stone exterior panel protection device for a curtain wall unit that can prevent cracks and damage caused by collisions between exterior panels.

[Means for Solving the Problems] In view of the above object, the present invention provides a structure in which the entire longitudinal length of a stone exterior panel in a curtain wall unit is prevented from coming into contact with each other during installation and fixing work. In other words, the present invention provides a structure in which a non-contacting gap groove extending over the space is provided by a structure that includes forming a step between the stone exterior panel and the holding frame or its attached member.

In a curtain wall unit that is continuously arranged vertically, one or both of the opposite edges of the stone exterior panels are offset in the vertical direction with respect to the frame side edge of the panel holding frame or its attached member to create a step. At the same time, the step width between the opposing edges is made relatively larger than the set interval width of the frame side edges, and a series of non-contacting gap grooves are interposed between the opposing edges over the entire length in the longitudinal direction. The present invention relates to a stone exterior panel protection device for a curtain wall unit, which is characterized in that it is provided with the following features:

[Function] In the present invention, when the curtain wall units are arranged vertically and continuously, there is always a non-contacting gap groove between the opposing edges of the stone exterior panel even if the holding frame or its attached member comes into contact with it. Since the grooves are interposed in a series over the entire length, even though the width of the grooves may expand during predetermined alignment, they are always present and prevent the stone exterior panels from coming into contact with each other. to protect these stone exterior panels.

[Embodiment] The present invention will be further explained below with reference to the drawings showing the embodiment. In the figure, 1 is a curtain wall unit, and this unit 1 has a frame substrate 2 and a stone exterior panel 21, respectively.
・It will be equipped with and.

The frame board 2 is made of, for example, a 3.2 mm thick C-shaped steel thick-walled channel material.
For example, 2 m on the entire front side of the rectangular frame consisting of 6
A thick steel plate 8 with a thickness of m is integrally welded and fixed to provide surface strength to prevent warping due to thermal expansion and contraction, and also to form an equal pressure space 9 between it and the stone exterior panel 21... The frame board 2 is fitted with a frame made of natural granite, for example, 1,450 mm long and 1 mm wide, through brackets 12 and 13, which will be described later.
A total of 6 stone exterior panels 21 of the same shape and size, 545 mm and 30 mm thick, are stretched and fixed in 2 rows and 3 rows, forming the above unit 1. , are arranged in a continuous manner vertically, and at this time, both units la and lb located above and below are of the same shape and size.

By the way, as shown in FIG. 2, each unit la, lb is attached to the opposing edge of each stone exterior panel 21.21 or the frame side of an attached member provided on the holding frame 3.4 of the frame board 2. They are arranged to be offset in the vertical direction with respect to the edge.

That is, the holding frame 3.4 has a fixing nut 18 as an attached member.
A plurality of loose fitting holders 19 are integrally welded to face each other so that they can come into contact with each other, and a plurality of them are provided in the longitudinal direction of the holding frame, and the intermediate holding frame 6 shown in FIG. 3 is permanently fixed to the building frame. Until then.

The bolt 20 screwed into the fixing nut 18 connects to the through hole 7 formed in the loose fit holder 19 and the holding frame 3 of the lower unit lb.
The fixing nut 18 and the loosely fitting holder 19 are arranged to form the edge of each frame, respectively, by penetrating through the frame in a loosely-fitting manner to enable adjustment of its position, including its vertical position. It is.

On the other hand, as can be seen from FIGS. 2 and 3, the stone exterior panels 21 are stretched downward with respect to the frame substrate 2, and due to this overall deviation, the stone exterior panels 21... The opposing edges of the stone exterior panels 21... are respectively offset downward from the frame side edges, and the stone exterior panels 21 and 21 are located between these, respectively. A descending step is formed.

Brackets 12.13 are used to tension and fix the stone exterior panels 21.
3 is a short piece with a width of about 10 cm, for example, and is made of a bent thick steel plate, and is installed at the four corners of each stone exterior panel 21 as a pair of upper and lower panels.

Each of these lower brackets 12.13 is equipped with a vertical fixed base 14 and an inverted locking protrusion 15, and the upper and lower holding frames 3.4 are each individually separated. As for the middle holding frame 6, the upper and lower parts are fixed as a pair, and each fixing base 14 thereof is fixed by screwing through a stainless steel liner 17 that adjusts the protrusion width of 1. is larger than the lower holding frame 4 and is arranged vertically, and the upper bracket 2 is arranged so that its lower end is approximately equal to the upper holding frame 3.

These brackets 12.13 are connected to the stone exterior panels 21.
The locking protrusions 15 are inserted into the respective locking protrusions 1i1122 which are carved and installed at appropriate lengths at the central end positions of the upper and lower end surfaces of the . Each stone exterior panel 21.21 is fixed, and at this time is regulated by the position of each bracket 12.13, so that the step is formed between the respective opposite edge and the frame side edge.

By the way, 2 in figure 1. is the upper and lower unit l which is permanently provided between the attachment members 18.1.9 in the holding frame 3.4.
a and lb have a set interval width when they are respectively attached and fixed to the building frame via fasteners 27, and for stand 2, the position of each stone panel 21.21 is regulated by the arrangement of brackets 12.13. Stone panel 21.2
1 shows the total step element width of the above-mentioned upper and lower steps that occur between opposing edges of 1.

Then, the distance between the set interval width Jll and the step width 2 between the opposing edges is always l+<lx, and the latter is relatively larger, so that the bracket 12. 13
The position of the groove 23 is further determined, and based on these views and the difference width between sentence 2, the non-contacting gap groove 23 is set to be interposed continuously over the entire length in the longitudinal direction between the opposing edges. has been done.

That is, the set interval width is determined by the fixing nut 18, which is an attached member, when the upper unit la is moved up and down during the fixing work including the RtA adjustment up to one tightening as described above. Although it may become zero due to mutual collision between the loose fit holder 19 and the like, the step width is 1. is always 1. Since the difference is always present, the non-contacting gap groove 23 is always interposed. The stone exterior panels 21.21 of the two are prevented from touching each other.

This non-contacting gap groove 23 naturally remains even after the curtain wall unit is installed and fixed, but in this example, it is left open as it is, and the stone exterior panel 21... This is an air opening extending substantially over the entire length of the equal pressure space 9 provided between the two.

In addition, 10 is an airtight material made of soft rubber that spans the entire length in the longitudinal direction and is interposed between the holding frames 3 and 4, and 16 is a lower bracket 13.
3 and 11 indicate a heat insulating material between the stone exterior panel 21 and the stone exterior panel 21, respectively.

FIG. 4 shows that the holding frame 3.4 is integrally provided with contact surfaces 24, 24 that protrude in a step-like manner in opposite directions, so that the holding frame 3.4 can directly control the setting distance between the frame side edges. Width fLI
An example is shown in which a bolt 20 screwed into a fixing nut 25 provided on the upper surface side of the lower holding frame 4 is similarly passed through a loose fitting hole 26 opened directly in the upper holding frame 3. Since there is no change in the rest, the same reference numerals will be used and the explanation will be omitted.

Diagram M4S shows another positional relationship between the opposing holding frames 3 and 4 in each curtain wall unit and the opposing edges of the stone exterior panels 21 and 21, and is similar to Fig. 5 (A
) are opposite edges to the holding frames 3 and 4 and are spaced apart in the vertical direction.

An example of enlarging the step 1h, M2S diagrams (B) and (C)
5(D) is an example in which a step is provided on one opposing edge of one of the upper and lower holding frames 3 or 4, and a step width gauge 2 is provided on the other side to match this with the holding frame 3 or 4, FIG. This is an example in which, contrary to the above example, the opposing edges of the holding frame 3.4 are positioned upward to provide a stepped width, and in both cases, an equal pressure space is provided. It is the property of

By the way, in the present invention, the opposite edge of the stone exterior panel is vertically offset from the frame side edge to form a step, but in this case, for example, When the upper and lower stone exterior panels are installed in two stages, the heights of the upper and lower stone exterior panels are made different, and the opposite edges are made shorter or longer to form a step due to the deviation itself. You can.

Although the step width is arbitrary, it is generally good to set it to about 20 to 30 mm, and it is desirable to determine the set interval width by the holding frame or attached member based on this. For example, a soft tongue-shaped plugging material between opposing edges (through holes are appropriately provided in the case of an equal-pressure space) is provided, for example, by being held in a bracket, or a hard plugging material is installed after the upper and lower units are removed. By fitting, the appearance of the two can be improved, or in such a case, the width of the step can be further expanded. In addition, if the non-contact gap groove is about 10 mm, it is possible to sufficiently prevent the stone exterior panels from coming into contact with each other.Also, it is possible to make it larger, for example, about 20 mm, but the step width It is not desirable to expand too much, as this will result in further expansion.

The above is an example of a curtain wall unit in which an equal pressure space is installed, or the present invention can also be applied to a case where an equal pressure space is not installed between the stone exterior panels, which is sealed after installation. It is possible to apply.

Furthermore, when the curtain wall unit is used at either the top or bottom of the curtain wall unit or at a position that defines a window opening, it is customary to fix the sash frame in that position. is desired.

As described above, the present invention does not cover the gist of the invention, including the specific shapes, structures, materials, dimensions, and relationships thereof of the stone exterior panel, the holding frame, the step width of the attached member, the non-contacting gap groove, etc. It is not necessary to limit this to one or more examples, as it can be implemented in various ways without contravening.

[Effects of the Invention] As explained above, one aspect of the present invention is to secure one or both of the opposing edges of the stone exterior panel in a curtain wall unit that is continuously arranged vertically by using the holding frame of the panel or its attached member. A step is formed by vertically deviating from the frame side edge, and the step width between the opposing edges is made relatively larger than the set interval width of the frame side edge. This is because a series of non-contacting air gap grooves are interposed over the entire length in the longitudinal direction.

Although this is a curtain wall unit that uses stone exterior panels with low impact resistance, a non-contact gap groove is always interposed between the opposing edges and between the installation and fixing work. It is possible to effectively and reliably prevent the stone exterior panels from coming into contact with each other, and therefore to prevent and protect them from cracking or breaking as much as possible.

In addition, its structure is relatively simple and production is easy, and conventional methods for fixing it to the building frame and construction can be used as is, so it can protect the stone exterior panel while protecting the stone exterior panel. There is no special need for complicated work or measures.

In this way, the present invention can easily and reliably protect stone exterior panels.

[BRIEF DESCRIPTION OF THE DRAWINGS] The drawings show an embodiment. Fig. 1 is an exploded perspective view of the curtain wall unit, Fig. 2 is a sectional view showing the installed state of the unit, and Fig. 3 shows the installed and fixed state. FIG. 4 is a cross-sectional view showing the arrangement of the unit showing another example, and FIGS. 5(A) to (D) show the arrangement of the unit showing another example. A partially omitted sectional view shown. 1, la, lb...Curtain wall λ unit 2...Frame board 3.4...Holding frame 18...Fixing nut 9...Free fit holder...Stone exterior panel 3...・Non-contact air gap groove...set interval width...step difference width...difference convergence

Claims (1)

[Claims] In a curtain wall unit that is continuously arranged vertically, one or both of the opposing edges of the stone exterior panels are offset in the vertical direction with respect to the frame side edge of the panel holding frame or its attached member to create a step. At the same time, the step width between the opposing edges is made relatively larger than the set interval width of the frame side edges, and a series of non-contacting gap grooves are interposed between the opposing edges over the entire length in the longitudinal direction. A stone exterior panel protection device for a curtain wall unit.