JPH11200504A - Anchor fitting for alc panel - Google Patents

Abstract

PROBLEM TO BE SOLVED: To eliminate need to weld a nut on a plate body by threading a female screw on the inner peripheral face of a cylindrical flange part forming by burring an upper piece part. SOLUTION: One side of a one deformed substantially rectangular steel plate is curved to form a circular cap-like upper piece part 2. Next, the center part of an upper piece part 2 is burred to form a cylindrical flange part and a female screw 4 is threaded on the inner peripheral face. Furthermore, the lower part of the anchor fitting 1 is separated by the center part to be formed on an opposite arc-like foot part 5, which is locked, welded and fixed on one reinforcing bar 6. The anchor fitting 1 is buried in an ALC panel, and a bolt attaching and fixing the ALC panel on a building frame is screwed on the female screw 4. Therefor a nut need not be welded on a plate-like body. Height of the cylindrical flange is preferably 3-9 mm.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an ALC panel embedded in an ALC panel for fixing the ALC panel to a building vehicle.
The present invention relates to an LC panel anchor.

[0002]

2. Description of the Related Art An anchor fitting 10 to be embedded in an ALC panel is, for example, a plate-like body 1 as shown in FIGS.
Generally, nuts 11 and 12 are fixedly mounted on 3 and 14, respectively. That is, as shown in FIG.
An anchor 1 is welded to a Z-shaped plate 13. As shown in FIG. 6 (b), the mounting structure of the anchor fitting 10 is a preformed outer wall A
A blind hole is drilled in the LC panel 15 and the anchor 10
Embedded in the ALC panel 1 so that the bolt 16 is screwed into the nut 11 welded to the plate 13.
5 through the back of ALC panel 1
5 is a mounting structure for fixing the fixing member 5. In FIG. 7,
The long nut 12 is welded to one piece of the L-shaped plate 14. The anchor 10 is fixed to the reinforcing bar 6 by welding when the ALC panel is formed.

[0003]

However, the conventional anchor 10 has nuts 11 and 1 for screwing bolts.
2 has to be fixed to the plate-like bodies 13 and 14 by welding, and there has been a problem that it takes a lot of man-hours to manufacture the anchor 10. In addition, the nuts 11 and 12 are
4, when welding to the nuts 11, 12 and the plate-like bodies 13, 1
4, when the nuts 11 and 12 are at an appropriate temperature, the plate members 13 and 14 may be melted off or the plate members 13 and 14 may be melted.
If the temperature is appropriate, the nuts 11 and 12 are not melted, and welding defects are likely to occur. As a result, there is a problem that the mounting strength of the ALC panel is reduced.

[0004] Generally, the anchor fitting 10 is coated with a rust preventive material.
It is difficult for the rust preventive material to penetrate into the gap where the ALC panel is in close contact, and there is also a problem that rust is generated at that portion by the moisture absorbed by the ALC panel.

Accordingly, an object of the present invention is to provide an ALC that eliminates the above problems and eliminates the need to weld a nut to a plate.
Anchor fittings for panels (hereinafter referred to as anchor fittings)
Is to provide.

[0004]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention provides an ALC having a female screw portion embedded in an ALC panel and having a screw thread engaged with a bolt for fixing the ALC panel to a building body. In the panel anchor, the female screw portion is configured as an ALC panel anchor which is formed on the inner peripheral surface of a cylindrical flange formed by burring. Here, the burring processing is a processing method in which a pilot hole is formed in a steel plate to form a cylindrical flange.

The operation of the present invention will be described below. To form a female thread on the burred flange,
The nut is not required, and the trouble of welding and fixing the nut to the plate is eliminated. In addition, the conventional problem that the nut and the plate-shaped member come into close contact with each other and that the rust preventive material hardly penetrates into the gap is eliminated. Furthermore, it is possible to form an anchor by simultaneously performing shape pressing and burring on one sheet of steel sheet.

[0006]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view showing an embodiment of an anchor for an ALC panel according to the present invention.
In addition, the same code | symbol was used for the same code | symbol as the conventional example.
FIG. 1 is a perspective view showing a first embodiment of an ALC panel anchor, and FIG. 2A is a side view of FIG.
(B) is a front view of FIG. As shown in FIGS. 1 and 2, the anchor 1 is formed of one deformed substantially rectangular steel plate, and one side thereof is bent to form a circular cap-shaped upper piece 2. A cylindrical flange 3 is formed at the center of the upper piece 2 by burring. A female screw 4 is threaded on the inner peripheral surface of the cylindrical flange portion 3. The lower part of the anchor 1 is formed with opposing arc-shaped feet 5 divided at the center thereof, and is fixed to one reinforcing bar 6 and fixed by welding.

FIG. 3 is a view showing a second embodiment of the anchor 1, and FIG. 3 (a) is a sectional view thereof, and FIG. 3 (b).
Is a plan view. This anchor 1 is also made of a single steel plate as in the first embodiment, and the intermediate portion of the rectangular steel plate is formed in a slightly convex shape. A cylindrical flange portion 3 is formed on the convex portion by burring, and a female screw 4 is threaded on an inner peripheral surface of the cylindrical flange portion 3. In addition, the anchor 1 has both sides of the rectangular steel plate locked to one reinforcing bar 6 and fixed by welding.

FIG. 4 is a perspective view showing a third embodiment of the anchor 1 and FIG. 5A is a side view of FIG.
(B) is a front view. This anchor 1 is also made of a single steel plate as in the first and second embodiments.
The steel plate has a deformed substantially triangular shape, and one side thereof is bent to form a substantially quadrangular cap-shaped upper piece 2. A cylindrical flange portion 3 is formed at the center of the upper piece portion 2 by burring as in the first embodiment. A female screw 4 is threaded on the inner peripheral surface of the cylindrical flange portion 3. The base of the substantially triangular steel plate is bent in an L-shape, and both sides of the bent portion are extended to form feet 5, and each of the feet 5 is connected to one reinforcing bar 6 each. Locked and welded.

In the present invention, the height H of the cylindrical flange portion formed by the burring of the anchor fitting is set.
Is 3m so that the effective screw length of the female thread can be obtained sufficiently.
m or more, and preferably 9 mm or less from the viewpoint of the cost of a mold for burring. In addition, the thickness of the steel plate in the burring portion of the anchor is 2.3 to 4 in view of burring workability and material cost.
Those having a range of 5 mm are preferred. Furthermore, the whole anchor fitting may be formed of a plurality of members, but since it is formed of a single steel plate, continuous processing of the anchor fitting shape press working and burring work becomes easy,
It is more desirable because productivity is improved.

[0010]

According to the present invention, the following effects can be obtained. 1) A nut is not required, so that the member cost and the number of welding steps are reduced, and the mounting strength of the ALC panel is not deteriorated due to welding defects. 2) There is no portion where the rust-preventive paint is not applied to the anchor metal, and rust generation can be prevented. 3) Shape of anchor fittings Since pressing and burring can be performed simultaneously and mass production of anchor fittings is possible,
The cost of the anchor is reduced. 4) Further, since the burring process is performed, a longer effective screw length can be obtained as compared with a case where the steel plate of the anchor is directly tapped and the female screw portion is formed. That is, since the thickness of the steel plate used for the anchor metal can be reduced by making the bolting strength equal, the material cost of the anchor metal can be reduced.

[Brief description of the drawings]

FIG. 1 is a perspective view of a first embodiment of an ALC panel anchor according to the present invention.

FIG. 2A is a side view of a first embodiment of an ALC panel anchor according to the present invention.

FIG. 2B is a front view of the first embodiment of the ALC panel anchor according to the present invention.

FIG. 3 (a) is a side sectional view of a second embodiment of an ALC panel anchor according to the present invention.

FIG. 3B is a plan view of a second embodiment of the ALC panel anchor according to the present invention.

FIG. 4 is a perspective view of a third embodiment of an ALC panel anchor according to the present invention.

FIG. 5A is a side view of a third embodiment of an ALC panel anchor according to the present invention.

FIG. 5 (b) is a front view of a third embodiment of the ALC panel anchor according to the present invention.

FIG. 6A is a perspective view of a conventional anchor.

FIG. 6B is a cross-sectional view of a mounting structure of an anchor according to a conventional example.

FIG. 7 is a perspective view of another anchor according to the related art.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Anchor fitting 2 Upper piece part 3 Cylindrical flange part 4 Female screw 5 Foot part 6 Reinforcing material (reinforcing reinforcing bar) H Height of flange part 10 Anchor fittings 11, 12 Nuts 13, 14 Plate 15 ALC panel 16 Bolt 17 Steel beam (building body)

Claims (3)

[Claims] 1. An ALC panel anchor fitting having a female screw portion embedded in an ALC panel and screwed with a bolt for attaching and fixing the ALC panel to a building body, wherein the female screw portion is formed by burring. Characterized in that it is formed on the inner peripheral surface of the cylindrical flange portion formed.
Anchor bracket for C panel. 2. The ALC panel anchor according to claim 1, wherein said flange has a height of 3 to 9 mm. 3. The ALC panel anchor according to claim 1, wherein the whole is formed of one steel plate.