JPH0533670Y2 - - Google Patents

Description

[Detailed explanation of the invention] a. Purpose of the invention (industrial application field) The device for attaching a sash frame to an opening in a building wall made of concrete panels according to this invention is composed of lightweight aerated concrete panels (ALC boards). It is used to attach a metal sash frame to an opening in a building wall without using welding means.

(Conventional technology) In recent years, lightweight aerated concrete panels, which have excellent fire resistance and heat insulation properties, have come to be used not only for buildings but also for general housing. It became necessary to install an aluminum sash frame inside the opening in the concrete panel building wall.

For this reason, sash frames have conventionally been attached to the inside of openings in concrete panel building walls using various means and structures.

Three examples are shown in Figures 6 to 8. In the first example shown in Figure 6, the corners of the concrete panel 1 are completely removed to prevent them from being damaged. A sash frame 4 (Figures 6 to 8 all show the lower frame, but the upper frame , the same applies to the case of a vertical frame.) A bracket 5 fitted to the concrete panel 1 is welded, and a sash frame 4 is attached to the reinforcing bar 2 of the concrete panel 1 via the angle material 3 and the bracket 5.

In the second example shown in FIG. 7, a bracket 5 is welded directly to the end of the reinforcing bar 2 exposed on the end face of the concrete panel 1, and the bracket 5 is attached to the reinforcing bar 2.
The sash frame 4 is attached via the sash frame 4.

Furthermore, if the reinforcing bars 2 to which the brackets 4 are to be welded are not exposed on the end face of the concrete panel 1, as in the third example shown in FIG. The sash frame 4 is attached to the concrete panel 1 by fixing a steel plate 7 and welding a connecting piece 8 fixed to the sash frame 4 to the steel plate 7.

(Problem that the invention aims to solve) However, the above-mentioned conventional methods and structures for attaching sash frames to openings in building walls made of concrete panels require welding work at the construction site. Become.

Even in buildings that use concrete panels, the steel frames are assembled on site by simply tightening bolts, and almost no welding is required. Performing welding only when installing the sash frames is a problem for workers. It is difficult to expect high-quality welding, as the work is very unfamiliar and is often avoided.

The device of the present invention for attaching a sash frame to an opening in the wall of a building made of concrete panels eliminates the above-mentioned inconveniences and allows the sash frame to be attached to the opening without using welding means. be.

b. Structure of the invention (Means for solving the problem) The device of the invention for attaching a sash frame to an opening in the wall of a building made of concrete panels includes a bracket that can be attached to the outer periphery of the sash frame, and a bracket that can be attached to the outer periphery of the sash frame. It consists of a first support piece that connects the concrete panel and the sash frame, and a second support piece that directly connects the concrete panel and the sash frame without using the bracket.

Of the above-mentioned bracket and support, the bracket is provided with a connecting plate portion that projects toward the outer circumference of the sash frame when it is attached to the sash frame.

On the other hand, the first support piece is made by bending a metal plate into a substantially L-shape, has one end that can be screwed and fixed to the connecting plate of the bracket, and has an elastically extensible spring part in the middle part. However, at the other end, a claw portion is formed with a sharp tip so as to be able to bite into the side surface of the concrete panel located at the peripheral edge of the opening.

Similarly to the first support piece, the second support piece is made by bending a metal plate into an L shape, and has a base part fixed to the concrete panel with an anchor on the inner peripheral surface of the opening part, and a base part fixed to the concrete panel with an anchor on the inner peripheral surface of the opening part. A connecting portion is bent from one end of the base and screwed to the outer circumferential protrusion of the sash frame.

(Function) When attaching a sash frame to the inside of the opening using the device for attaching the sash frame to the opening of the concrete panel building wall of the present invention constructed as described above, the base of the second support piece is It is fixed to the inner circumferential surface of the opening with an anchor, and the connecting portion of this second support piece is screwed to the outer circumferential edge of the sash frame.

Also, one end of the first support piece is screwed to the connecting plate part of the bracket installed on the outer periphery of the sash frame in advance, and the claw part formed on the other end of the first support piece is
It bites into the side of the concrete panel located at the periphery of the opening. At this time, the spring part provided in the middle of the first support piece is elastically stretched so that the claw part elastically contacts the side surface of the concrete panel, and the claw part firmly bites into the side surface of the concrete panel. do.

By attaching the first and second support pieces in this way, the sash frame with the bracket attached to its outer periphery is attached to the concrete panel via the first and second support pieces and the bracket. .

(Example) Next, the present invention will be explained in more detail by explaining the illustrated embodiment.

Figures 1 to 5 show an embodiment of the device of the present invention for attaching a sash frame to an opening in a building wall made of concrete panels, and Figure 1 is a side view showing the state in which the sash frame is attached, and Figure 2 3 is a perspective view showing the first and second support pieces, FIG. 3 is a perspective view of the bracket, FIG. 4 is a plan view thereof, and FIG. 5 is a side view thereof.

Of these, the bracket 9 shown in Figures 3 to 5
This bracket is similar to the bracket that has traditionally been used to attach sash frames to reinforced concrete buildings.
It is disclosed in Publication No. 14540 and others. Therefore,
A brief explanation of this bracket 9 is as follows.
A notch is made in the middle of the short side of a long rectangular metal plate with arcuate edges 10, 10 on half of the short sides, and of the sections 11, 12 on both sides of this notch, the section 12 on the opposite side to the arcuate edge 10, 12, fold both sections 11,
12, the bent edges 13, 13 formed on the outer periphery of the sash frame 4 are held between them, so that the bracket 9 can be freely attached to the outer periphery of the sash frame 4.
A connecting plate portion 14 is formed by folding up the metal plate constituting this bracket 9, and this connecting plate portion 1
4 is formed with a screw hole 16 into which a screw 15 (FIG. 1), which will be described later, connects the first support piece and the bracket 9 is screwed together.

On the other hand, the first support piece 17 is made by bending a metal plate having sufficient rigidity into a substantially L-shape, as shown in FIG. One end of this first support piece 17 is bent downward (up and down according to FIGS. 1 and 2) to form a connecting part 18 for connecting this support piece 17 and the above-mentioned bracket 9,
A circular hole 19 is formed in the center of the connecting portion 18, into which the screw 15 described above is inserted. In addition, in a portion slightly closer to the center of the support piece 17 than the connecting portion 18, a first A spring portion 20 is formed that allows the entire length of the support piece 17 to be elastically extensible. Furthermore, the other end of the first support piece 17 is bent at a right angle toward the concrete panel 1, and claws 21, 21 with sharpened tips are formed in this bent portion.

Further, as in the case of the first support piece 17 described above, the second support piece 22 is made by bending a metal plate having sufficient rigidity into an L-shape, so that the base portion 23 and the connecting portion 24, which are perpendicular to each other, are connected to each other. is forming. Among these, the base 23 is provided with a circular hole 25 through which the anchor 6 for fixing the second support piece 22 to the inner peripheral surface of the opening of the concrete panel 1 is inserted.
4 are each formed with a screw hole 30 into which a screw 29 (FIG. 1) inserted through a circular hole 28 formed in the outer peripheral edge 27 of the sash frame 4 is screwed.

The sash frame 4 is mounted on the angle member 3 fixed to the concrete panel 1 using the sash frame mounting device of the present invention, which is composed of the above-mentioned parts, as follows.

First, insert the base 23 of the second support piece 22 into the circular hole 2.
A circular hole formed in the outer circumferential edge 27 of the sash frame 4 is fixed to the inner peripheral surface of the opening of the concrete panel building wall by an anchor 6 inserted through the support piece 22. The sash frame 4 is attached to the concrete panel 1 via the second support piece 22 by screwing the screw 29 inserted into the hole 28 and tightening it.

On the other hand, the circular hole 19 of the connecting portion 18 is inserted into the connecting plate portion 14 of the bracket 9, which is attached to the outer periphery of the sash frame 4 in advance.
The claw parts 21, 21, which have the first support piece 17 connected at one end by screwing and tightening the screw 15 inserted through the opening, are attached to the side surface of the concrete panel located at the periphery of the opening. Make them face each other. In this state, the spring portion 20 provided midway through the first support piece 17 is in an elastically expanded state;
The claw portions 21, 21 are elastically pressed against the side surface of the concrete panel 1 and bite into this side surface.

Therefore, the sash frame 4 is attached to the concrete panel 1 not only by the second support piece 22 described above but also by the first support piece 17 and the bracket 9. In this installed state, the satsushi frame 4
When tries to move to the right in Figure 1,
Mainly, the second support piece 22 prevents this movement,
On the other hand, if it tries to move to the left, the first support piece 17 mainly prevents this movement.

Therefore, the sash frame 4 with the bracket 9 attached to its outer periphery is firmly attached to the concrete panel 1 via the second support piece 22, the first support piece 17, and the bracket 9.

Since the bracket 9 is attached to multiple locations on the outer periphery of the sash frame 4, the bracket 9 is attached to the sash frame 4 at each location.
By connecting the concrete panel 1 and the concrete panel 1 through the second support piece 22, the first support piece 17, and the bracket 9, the sash frame 4 is firmly fixed inside the opening of the concrete panel 1. The structure at each location is exactly the same whether it is a lower frame or a vertical frame, except for the upper, lower, left, and right directions that are different from that of the illustrated upper frame.

Note that the bracket 9 is not limited to the structure shown in FIGS. 3 to 5, as long as it can be easily fixed to the outer peripheral portion of the sash frame 4.
It may have a shape as shown in FIGS. 6-7, or it may have another shape.

c. Effects of the invention The device of the invention for attaching a sash frame to an opening in the wall of a building made of concrete panels is constructed and functions as described above, but since there is no need to perform welding work on site, construction work can be done easily. can be done easily and quickly, and workers at the site will not dislike it.

[Brief explanation of the drawing]

Figures 1 to 5 show an embodiment of the device of the present invention for attaching a sash frame to an opening in a building wall made of concrete panels, and Figure 1 is a side view showing the state in which the sash frame is attached, and Figure 2 is a perspective view showing the first and second support pieces, FIG. 3 is a perspective view of the bracket, FIG. 4 is a plan view of the same, FIG. 5 is a side view of the same, and FIGS. FIG. 3 is a vertical cross-sectional view showing three examples. 1... Concrete panel, 2... Rebar, 3...
... Angle material, 4 ... Sash frame, 5 ... Bracket, 6 ... Anchor, 7 ... Steel plate, 8 ... Connection piece,
9... Bracket, 10... Arc edge, 11, 12
... section, 13 ... bent edge, 14 ... connecting plate section,
15... Screw, 16... Screw hole, 17... First support piece, 18... Connecting portion, 19... Circular hole, 20...
...Spring part, 21...Claw part, 22...Second support piece, 23...Base, 24...Connection part, 25...Circular hole, 26...Threaded hole, 27...Outer peripheral flange, 28 …
...Round hole, 29...Screw, 30...Screw hole.

Claims (1)

[Scope of utility model registration request] A device for attaching a metal sash frame to the inside of an opening in a building wall made of concrete panels without using welding means. It is made by bending a metal plate into a substantially L shape, with a bracket having a connecting plate part protruding in the direction of the outer circumference of the sash frame, one end of which can be fixed to the connecting plate part of the bracket with a screw, and an elastic part attached to the middle part. a first supporting piece having an extensible spring part and having a claw part at the other end with a sharpened tip that can freely bite into the side surface of the concrete panel located at the peripheral edge of the opening; A connecting portion is formed by bending an L-shape, is bent from one end of the base fixed to the concrete panel with an anchor on the inner peripheral surface of the opening, and is provided with a connecting portion that is screwed to the outer peripheral edge of the sash frame. A device for attaching a sash frame to an opening in a concrete panel building wall, consisting of two supporting pieces.