JPH1046657A - Fixed construction of fixed member to alc wall opening - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide fixed construction capable of bearing heavy load when plane lattice, shielding plate, window, door, etc., are fixed to an ALC wall opening section and being safely and surely used even in a high-rise building. SOLUTION: A fixed metal fixture M consisting of a plate 1, a bar-shaped body 2 fixed thereto approximately vertically and projections 5 formed in a specific position near to the plate 1 from the central part thereof is inserted in a hole 3 bored at right angles to headers 4 to the headers 4 faced to an opening section E of an ALC panel P. Then, the projection 5 is cut into the internal circumference off the hole 3, and a fixed member N is welded to the plate 1 to fix.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure for fixing a member to be fixed to an opening of an ALC wall. The present invention relates to a structure for fixing a member to be fixed to an ALC wall opening, which can withstand high wind pressure and can be applied to a high-rise building.

[0002]

2. Description of the Related Art Conventionally, on a veranda, a balcony, a parapet, a corridor, a waist wall of a staircase or the like composed of an ALC panel P, a fixed member N such as a surface grid is directly fixed to a small face 74 of an opening E thereof. In such cases, a locking device L as shown in FIG. 5 was often used. The lock L is
This is generally referred to as a resin plug, and comprises a resin-made substantially cylindrical member 71 having a short length of about several centimeters, a tapping screw 72 fitted inside a base end portion 77 thereof, and a distal end portion 78 of the substantially cylindrical member 71. Is formed with a slit 75 so as to cut from the end face thereof, and the cylindrical wall 76 at that portion is thick inside. Then, using this locking tool L, FIG.
As shown in (1), the fixed member N is fixed to the opening E of the ALC wall W.

In this fixing structure, a hole 73 is previously formed in a small face 74 of the ALC panel P, and the substantially cylindrical member 71 is inserted into the hole 73. This substantially cylindrical member 71
Then, the tapping screw 72 is screwed from above the hole in a state where the hole provided in the mounting piece 79 of the fixed member N is overlapped on the hole 73 of the fore-edge surface 74. At this time, as the tapping screw 72 is screwed in, the thickened cylindrical wall 76 is pushed and spread inside the distal end portion 78 side of the substantially cylindrical member 71, and as a result, the slit 75 of the substantially cylindrical member 71 is opened. The cylindrical wall 76 of the distal end portion 78 is pressed against the inner surface of the hole 73. Then, the locking member L is fixed so that the projection provided on the cylindrical wall 76 and the distal end portion 78 is locked on the inner surface of the hole 73 so as not to fall out of the hole 73.

[0004]

SUMMARY OF THE INVENTION
Is a structure in which the locking tool L is inserted only into the entrance near the entrance having a depth of about several cm from the small face 74 of the ALC panel P, and the ALC panel P is made of another concrete panel. Since a large load is frequently applied to the lock L by strong wind pressure or the like, the panel at the entrance of the hole 73 is chipped for a long period of time, and the lock L is loosened. There is also a concern that the fixture L comes out of the hole 73 and the fixed member N comes off.

Further, the above-mentioned conventional locking device L has a structure in which a fixing portion (attachment portion) of a member to be fixed is fixed by sandwiching the fixing portion (attachment portion) between a head portion of a tapping screw and a small surface of the ALC panel P. The structure is such that the fixed member and the tapping screw are not completely integrated. Moreover, since the resin is a fragile member, if the tapping screw is strongly turned to tighten the fixing portion (mounting portion) of the fixed member tightly, the screw groove formed in the substantially cylindrical member made of resin is immediately destroyed. However, there is a disadvantage that the tapping screw runs idle.

[0006] Therefore, the mounting portion of the fixed member cannot be strongly pressed, and when a heavy human load or strong wind pressure is repeatedly applied to the fixed member, the tapping screw is wobble, resulting in the mounting of the fixed member. There is also a problem that the backlash gradually forms between the part and the head of the tapping screw, and the tapping screw hits each other.

Therefore, such a conventional fixing structure has few problems for a low-rise building which can be tolerated if it has a bearing capacity of about 50 kgf under a human load and about 200 kgf per square meter under a wind pressure. It is difficult to use such a fixed structure for a high-rise building of about 15 m or more where a large wind pressure is applied. Furthermore, using a resin member for the locking member L has a problem in durability because the resin is generally easily embrittled.

[0008] An object of the present invention is to solve the above-mentioned problems and to withstand higher loads, so that it can be applied to high-rise buildings and has a more durable ALC.
An object of the present invention is to provide a structure for fixing a member to be fixed to a wall opening.

[0009]

In order to solve the above-mentioned problems, the present invention has the following arrangement. In a structure in which a member to be fixed is fixed to an opening of an ALC wall formed by a plurality of ALC panels, a hole is formed in a small surface facing the opening of the ALC panel in a direction perpendicular to the small surface. A metal fixture consisting of a plate and a rod fixed vertically to the plate is inserted, and the fixture is located in the area surrounded by the reinforcing bars embedded in the ALC panel from the small face of the panel. And the tip of the rod is inserted into the region, and a projection is formed at a predetermined position between the center of the rod and the plate, and the projection is formed. A portion is cut into the inner peripheral surface of the hole, and the fixed member is fixed to the surface of the plate by welding, and the fixed member is fixed to the opening of the ALC wall.

The present invention operates as follows. First, in the fixing structure of the first aspect of the present invention, since the fixed member is fixed to the plate of the fixing bracket by welding, the fixed member and the fixing bracket are completely integrated. Therefore, there is no backlash or bang between the fixed member and the fixing bracket. Moreover, unlike the case of fixing with bolts, it is not necessary to make a hole corresponding to the bolt position in the member to be mounted.

The fixing bracket has a length up to the area surrounded by the reinforcing bars embedded in the ALC panel, and the tip of the rod is inserted into the area of the reinforcing bars. The body becomes supported within the area where the strength of the panel is increased by the reinforcing bars. Furthermore, since the projection of the rod-shaped body of the fixing member is provided at a predetermined position between the center of the rod-shaped body and the plate, it is possible to prevent rattling of the rod-shaped body inserted into the hole, and to prevent the rod from being loosened. Since the portion is cut into the inner peripheral surface of the hole, it is firmly supported on the inner surface of the hole, and as a result, the fixed member is firmly fixed without being loosened by the fixing bracket. Further, since the fixing bracket has a simple shape and is made of metal, it has high strength and excellent durability, and can be manufactured at low cost.

According to a second aspect of the present invention, a counterbore is provided at the entrance of the hole in the panel, and the plate is fitted into the counterbore so that the surface thereof and the front surface are substantially flush. In this case, the design of the fixture is enhanced because the plate of the fixture is not exposed to the opening. If a gap is formed between the side wall of the counterpart and the outer peripheral surface of the plate, even if the plate is displaced due to an earthquake or a large load, the outer peripheral surface strongly presses the side wall of the counterpart. Therefore, the side wall of the counterpart is less likely to be broken.

[0013]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment in which the present invention is applied to a veranda opening will be described below. As shown in FIG.
(Rising) In the opening E formed in a part of the ALC wall W,
A fixed member N such as a decorative lattice, a surface lattice, a shielding plate, or the like is fixed using a fixing bracket M. As shown in FIG. 2, the fixing bracket M includes a circular plate 1 serving as a base for welding, a rod-shaped body 2 fixed to be perpendicular to the plate 1, and the plate 1 from the center of the rod-shaped body 2. And a protruding portion 5 formed at a predetermined position.

A hole 3 is formed in the fore-edge surface 4 of the opening E at right angles to the surface, and the rod-shaped body 2 of the fixture M is inserted into the hole 3 and the projection 5 is inserted into the hole 3. The fixing metal M is bitten into the peripheral surface and is fixed firmly. The fixed member N is welded and fixed to the plate 1 of the fixing metal M via the L-shaped mounting piece 12 whose fixing position can be adjusted, and is completely integrated with the fixing metal M.

The plate 1 of the fixing bracket M is preferably a disk having a diameter of 3 to 7 cm from the viewpoint of workability in mounting, but may have another shape such as a square. The rod 2 of the fixing bracket M has a diameter of 5 to 20 mm from the viewpoint of strength and workability.
Although it is desirable to use a columnar member made of steel as described above, a tubular member may be used. The length of the fixing bracket M is at least AL
Area H surrounded by reinforcing bars R embedded in panel P
It is necessary that the rod 2 has a length up to the inside and the tip of the rod-shaped body 2 is inserted into the region H.

That is, as shown in FIG. 1, an ALC panel P used for a rising wall, or for an outer wall, a partition, etc. is formed by welding a reinforcing bar in a grid shape and bending it into a C-shape. Alternatively, two reinforcing bars R, which are matted by welding in a lattice shape, and are connected as a pair, are present as reinforcing reinforcing bars R inside. ALC panel P
However, since the region H surrounded by such reinforcing bars R has a significantly improved strength as compared with the region not buried,
By setting the length of the rod-shaped body 2 at least to reach the area H, the rod-shaped body 2, that is, the fixing bracket M, is firmly gripped by the ALC panel P. However, it is preferable that the thickness be 30 cm or less at the maximum in terms of weight, workability in mounting, and the limit of the effect.

Further, the projection 5 of the rod 2 must be formed at a predetermined position between the center of the rod 2 and the plate 1 as described above. That is, by projecting at such a position, rattling of the rod-shaped body 2 inserted into the hole 3 can be suppressed at a position close to the plate 1, so that the fixed member N can be firmly fixed. Conversely, if the projection 5 of the rod-shaped body 2 of the fixing bracket M is located on the distal end side from the center, play will occur between the projection 5 on the distal end side and the plate 1, and it will be securely fixed. Can not. In addition, the entire fixture M is loose near the entrance 7 of the hole 3, and as a result, the panel near the entrance 7 is gradually broken.

It is desirable that the height of the projection 5 be 1 to 5 mm from the viewpoint that the fixing can be reliably performed. The length of the protruding portion 5 is not particularly limited, and several protruding portions having a length of about 2 to 6 mm are provided as shown in FIG. 2, and a plurality of such protruding portions 5 are protruded in series. The projection may be provided, and a projection 5 continuous from the central position to the near chamber of the plate 1 may be provided. Further, it is preferable to provide the protruding portion 5 at a portion of the rod 2 at a distance of 5 mm or more from the plate 1 so as not to break the vicinity of the entrance 7 of the hole 3. In addition, the protrusion 5 can be easily formed by picking out the side surface of the rod-shaped body 2 with a press or the like.

As shown in FIG. 2, a counterbore 6 for fitting the plate 1 is formed at the entrance 7 of the hole 3 for inserting the rod 2 of the fixing bracket M. When the front surface 10 and the fore-edge surface 4 are substantially flush, that is, formed so as to be on the same plane, the plate 1 of the fixing bracket M is not exposed to the opening E, so that the design is enhanced.

The side wall 11 of the counterbore 6 and the plate 1
It is desirable that a gap 8 of about 2 to 5 mm is formed between the outer peripheral surface 9 and the outer peripheral surface 9. In other words, when an earthquake or a large load is applied to the plate 1, even if the plate 1 is displaced, the force of the outer peripheral surface 9 pressing the side wall 11 of the counterbore 6 is small, and the side wall 11 of the counterbore 6 Less destruction. Conversely, if there is no gap 8, the side wall 11 is broken even if the plate 1 is slightly displaced. If the plate 1 is largely displaced, a crack is apt to be generated around the side wall.

As another embodiment of the present invention, a steel plate 14 as shown in FIG. 3 is applied instead of the mounting piece 12 to be welded to the plate 1 of the fixing bracket M, and the member N to be fixed is fixed thereto. You can also. In this case, the steel plate 14
A hole 13 is made in a portion of the fixing metal M to be welded to the plate 1, and the inner periphery of the hole 13 and the plate 1 of the fixing metal M are fixed by welding. If you do this,
The mounting piece 12 and the like can be fixed at a free position on the front face 4 of the ALC panel P without depending on the position of the fixing metal M. In the present invention, the frame or the like of the fixed member N may be directly fixed to the plate 1 without using the mounting piece or the like.

In such a case, as shown in FIG. 2, the entrance 7 of the hole 3 into which the rod 2 of the fixing bracket M is inserted.
If a structure is formed in which the counterbore portion 6 for fitting the plate 1 is formed and the depth thereof is formed so that the surface 10 of the plate 1 and the fore-edge surface 4 are substantially flush with each other, the design is enhanced. In addition, when the plate-shaped fixed member N is fixed, there is no gap between the steel plate 14 or the frame and the fore-edge surface 4, so that water does not accumulate in the gap.

The fixing structure according to the present invention is characterized in that when a member to be fixed is fixed to an opening of an ALC rising wall such as a veranda, a balcony, a parapet, a corridor, a stairway waist wall, etc., which is made of an ALC panel, a vertical reinforcing angle is applied to a small opening. In many cases, the fixing bracket and the member to be fixed can be easily fixed, and the mounting workability is more excellent. Further, the fixing structure of the present invention can also be applied to a case where a fixed member such as a window or a door is fixed to an outer wall or an opening of a partition by ALC.

[0024]

As described above, according to the fixing structure of the member to be fixed to the opening of the ALC wall according to the present invention, the fixing member of a specific shape is used, and the reinforcing member is surrounded by the reinforcing bars embedded in the ALC panel. Since it is inserted up to the inside of the area, it is possible to withstand a high load, and thus it can be used safely and reliably even in a high-rise building where a large wind pressure occurs.
Also, by fixing directly to the ALC panel fore edge,
Since the steel material for fixing the fixed member does not protrude out of the ALC panel surface, there is no need to hide it, and the design can be improved while keeping the wall thickness thin. Is also excellent.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a first embodiment of the present invention.

FIG. 2 is an enlarged view of a welded portion between a plate portion of a fixture and a member to be fixed used in the present invention.

FIG. 3 is a perspective view showing a main part of a second embodiment of the present invention.

FIG. 4 is a perspective view showing a conventional embodiment.

FIG. 5 is a perspective view showing a locking tool used in a conventional embodiment.

[Explanation of symbols]

 P ALC panel W ALC wall E Opening M Fixing bracket N Fixed member R Reinforcing bar H Area surrounded by reinforcing bar 1 Plate 2 Bar-shaped body 3 Hole 4 Small face 5 Projection 6 Seating part 7 Inlet 8 Gap 9 Outer circumference Surface 10 Plate surface 11 Side wall of counterbore 12 Mounting piece 13 Hole 14 Steel plate

Claims (3)

[Claims] 1. A structure for fixing a fixed member (N) to an opening (E) of an ALC wall (W) formed by a plurality of ALC panels (P), wherein the opening (E) of the ALC panel (P) is provided. A hole (3) is formed in the front face (4) facing E) in a direction perpendicular to the front face (4), and the plate (1) and a rod-like body ( 2) is inserted, and the metal fitting (M) is A
From the front side (4) of the LC panel (P) to the panel (P)
The rod-shaped body (2) has a length up to a region (H) surrounded by the reinforcing bar (R) buried in the steel tube, and the tip of the rod-shaped body (2) is inserted into the region (H). A projection (5) is formed at a predetermined position between the center of the rod (2) and the plate (1), and the projection (5) cuts into the inner peripheral surface of the hole (3). A structure for fixing the fixed member to the opening of the ALC wall, wherein the fixed member (N) is rarely fixed by welding to the surface (10) of the plate (1). 2. A counterbore (6) is provided at an inlet (7) of said hole (3), and said plate (1) is provided on its surface (1).
0) and the front face (4) are positioned in the counterbore (6) so as to be substantially flush with each other, and the side wall (11) of the counterbore (6) and the plate (1) The structure for fixing a member to be fixed to an ALC wall opening according to claim 1, wherein a gap (8) is formed between the ALC wall and the outer peripheral surface (9). 3. A structure for fixing a fixed member to an ALC wall opening according to claim 1 or 2, wherein the fixed member is fixed to an ALC rising wall opening such as a veranda, a balcony, a parapet, a corridor, a staircase or the like. .