JPH10227098A - Alc panel with buried anchor fitting - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily lock an anchor fitting by forming an opening on the engagement part of the anchor fitting so as to couple a reinforcement, and then locking and fixing the anchor fitting to the reinforcement coupled and held via the opening. SOLUTION: A cylindrical part 2 having a step 9 is provided on the external surface of a nut as an internal thread part 1, and an approximately inverted U-shaped locking part 3 is formed on the lower part of the cylindrical part 2. Also, a communication hole 4 is provided for communicating the cylindrical part 2 and the locking part 3 to each other. A pair of steel plates 6 having pin holes 8 are secured to the cylindrical part 2 by weld, so as to be faced to each other, thereby forming an anchor fitting K. Furthermore, one reinforcement 5 of an ALC panel 1 is coupled to the anchor fitting K via the opening 3a thereof, and welded to the locking part 3, thereby locking the anchor fitting K to the reinforcement 5. As a result, the anchor fitting K can be easily locked to the reinforcement 5.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an anchor fitting embedded ALC.
About the panel. More specifically, the present invention relates to an anchor fitting embedded ALC panel which can be easily locked when an anchor fitting for attaching a building skeleton is locked to one reinforcing bar in the panel and embedded.

[0002]

2. Description of the Related Art An anchor having an internal thread such as a nut for attaching a panel to a building frame is embedded and fixed in advance in an ALC panel (hereinafter referred to as a panel) by being locked and fixed to reinforcing bars in the panel. Have been. When anchoring and fixing the buried anchor to a reinforcing bar, the anchor is usually locked to two reinforcing bars in consideration of pull-out strength. However, in the case of a panel that does not require a very large pull-out strength, or in a case where the reinforcing bars are thick and the toughness of the anchor is large, it is also possible to fix the anchor to one reinforcing bar. One example is the actual practice 1-8
As shown in Japanese Patent No. 3817, a reinforcing bar penetrates under a nut, and is laid out together with other reinforcing bars, and buried in a panel to serve as a fastener for attaching to a building frame. Has been proposed. It is another object of the present invention to increase the mounting strength of the anchor and to simplify the material.

[0003]

SUMMARY OF THE INVENTION
Since the anchor fitting in Japanese Patent No. 3817 is constituted by penetrating one reinforcing bar under the nut, the reinforcing bar is preliminarily penetrated through the nut, and then a reinforcing bar mat or basket to be embedded in the panel is used. Need to make. Therefore, drilling processing to open a through hole in the lower part of the nut, preparation of a reinforcing bar to penetrate the through hole, a step of penetrating the reinforcing bar into the through hole, a step of fixing the through hole and the reinforcing bar after the penetration, A step of attaching it to a reinforcing steel mat or basket is required. Therefore, since such a large number of steps are required, the work of attaching the anchor metal is difficult, and particularly, the automatic attachment is difficult.

[0004] Further, since such a nut requires a female screw portion, a tube portion for inserting a bolt, and a through hole, a considerably long nut is required. Therefore, a versatile nut cannot be used and must be specially manufactured, resulting in a high cost. Furthermore, when plating is required for the anchor metal, there is also a problem that the plating solution does not easily enter therethrough because there is no opening at the bottom, making uniform plating difficult.

[0005] Therefore, an object of the present invention is to eliminate the above-mentioned problems when the anchor fitting embedded in the ALC panel is locked to one of the reinforcing bars, and to easily lock even after the reinforcing bar mat is manufactured. It is an object of the present invention to provide an anchor-embedded ALC panel which can perform automatic mounting, and in particular, can reduce the manufacturing cost of the anchor and reduce the panel cost.

[0006]

According to the structure of the present invention, which solves the above-mentioned problems, an anchor comprising a female screw portion, a cylindrical portion, and a locking portion is locked to a reinforcing bar in an ALC panel.
In an anchor fitting embedded ALC panel which is fixed and embedded in the panel, the anchor fitting has an opening in which the reinforcing bar is fitted in a locking portion thereof, and is fitted or gripped from the opening. It consists of an ALC panel embedded with anchor fittings, which is locked and fixed to a single reinforcing bar held therebetween.

Hereinafter, the operation of the present invention will be described. Since the anchoring portion of the anchor has an opening, the reinforcing bar is locked only by fitting the reinforcing bar through the opening, and the anchoring bar only needs to be locked to one reinforcing bar. Attachment of the bracket to the reinforcing bar becomes easy.
In particular, since the reinforcing bars can be attached even after they are formed in the shape of a mat or a basket, the automatic attachment of the anchor is facilitated. Further, since the anchoring portion is locked to one reinforcing bar, the locking portion of the anchor metal can be made small, and furthermore, it is not necessary to perform a drilling process for forming a through hole, so that the manufacturing cost of the anchor metal can be reduced.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. The embodiment of the anchor K shown in FIG. 1 has a nut serving as a female screw portion 1, a tubular portion 2 configured to wrap the outer periphery of the nut, and an inverted U-shape at the lower portion of the tubular portion 2. It is composed of a locking portion 3 formed and a communication hole 4 which is open at the bottom of the cylindrical portion 2 and communicates with the cylindrical portion 2 and the locking portion 3. And, as shown in FIG. 8, the anchor metal K has its locking portion 3 locked to one reinforcing reinforcing bar 5 (horizontal reinforcing bar) of the ALC panel P. Further, the reinforcing reinforcing bar 5 is engaged with the opening 3a of the engaging portion 3 so as to be gripped or held by the engaging portion 3a, and is fixed to the engaging portion 3 by welding.

The shape of the engaging portion 3 is substantially inverted U-shaped having an opening 3a into which the reinforcing bar 5 is fitted in FIG. 1, but is substantially C-shaped as shown in FIG. Or FIG.
When both ends of the opening 3a as shown in FIG. 3 are bent to the inner rear side to form a C-shape, the pullout resistance increases,
Depending on the material and size, there is also an effect that it can be locked without being fixed by welding. In particular, since the locking portion 3 as shown in FIG. 6 is locked only by pushing the anchor metal K from above the reinforcing steel bar 5, the locking workability is excellent and the automation is easy.

As shown in FIGS. 4 and 5, when the opening 3a of the locking portion 3 has an outwardly expanding shape, the position of the reinforcing steel bar 5 and the anchor K is slightly shifted. The reinforcing reinforcing bar 5 can be fitted into the locking portion. Therefore, it is particularly effective when the positional relationship between the reinforcing steel bar 5 and the anchor K is easy to move, that is, the position is easy to shift as in the case of automatic attachment on a moving line. Although not shown, the opening 3a of the locking portion 3 as shown in FIG. 6 may be widened as shown in FIG.

Further, as shown in FIG. 7, the locking portion 3 is separated into two portions with an interval at which the reinforcing steel bar 5 is engaged, and constitutes a pair of substantially C-shaped portions facing each other. In this case, since the reinforcing reinforcing bar 5 is gripped or sandwiched from both sides, the shear strength on both sides is increased, and the reinforcing bar 5 can be more firmly attached. Also in this embodiment, when the locking part 3 is made of a tough material, the welding and fixing can be omitted. Further, in the embodiment shown in FIG. 7, the interval is made larger than the diameter of the reinforcing bar 5, or the entrance of the interval is formed in a C-shape (not shown). 5 is more desirable in that it makes the fitting of 5 even easier and allows its automation. In the embodiment shown in FIG.
When the reinforcing bar 5 is locked to the locking portion 3, the reinforcing metal 5 is fitted between the locking portions 3, and then the anchor K is rotated in the lateral direction.

In the embodiment described above, the cylindrical portion 2, the locking portion 3, the communication hole 4, etc. of the anchor metal K other than the female screw portion 1 are formed with concave portions continuously from the central portion to the lower portion. A pair of steel plates 6 of the same shape are formed by welding to each other. The anchor K thus formed can easily form the cylindrical portion 2, the locking portion 3, and the communication hole 4 even if the length and the diameter of the female screw portion 1 change, and the anchor K can be formed easily. Production costs can be reduced. A pinhole 8 and a small notch (not shown) are provided at predetermined positions other than the positions corresponding to the cylindrical portions 2 of the pair of steel plates 6.
When such a configuration is formed, it is easy to accurately match the pair of steel plates 6 when they are joined. Furthermore, as shown in FIG. 1 and FIG. 3, in the case where the lateral end portions of the steel plates 6 are bent, the joining surfaces of the steel plates 6 are closed by the bent pieces,
Even when the bonding state is incomplete, it is possible to prevent the ALC slurry from entering from the surface.

Further, when a communication hole 4 communicating with the locking portion 3 is provided at a lower portion of the cylindrical portion 2, when plating treatment is required for the anchor metal, the plating solution easily enters and the solution circulates. Therefore, uniform plating can be performed. further,
When the communication hole 4 is provided, as shown in an enlarged view of FIG. 3B, a press portion 7 formed by press working on the outer surface of the steel plate 6 at both upper ends of the locking portion 3 is provided. Is more desirable for the following reasons. That is, although the reinforcing steel bar 5 is usually a round bar, one of the two steel plates is engaged with the
Is difficult to completely round the concave portion, a gap is easily formed between the locking portion 3 and the reinforcing steel bar 5. As a result, the ALC slurry flows from the gap into the communication hole 4.
And penetrates into the cylindrical portion 2 to cause difficulty in inserting and screwing a male screw (not shown). On the other hand, by pressing the outer surface of the steel plate 6 above the locking portion 3, the concave portion of the locking portion 2 becomes more rounded, and the gap between the reinforcing reinforcing bar 5 and the concave portion of the locking portion 3 is eliminated. As a result, the above-mentioned problems are eliminated.

Further, as shown in FIGS. 1 and 2, it is desirable to have a step 9 having a convex portion on the outside at a predetermined position above the cylindrical portion 2. That is, although the female screw portion 1 such as a nut is provided on the upper portion of the cylindrical portion 2, it is usually necessary to regulate the entire length of the anchor metal K in relation to the thickness of the panel. When the step 9 of the convex portion is provided, the position can be accurately and easily set by fixing the female screw portion 1 such as a nut at the step 9.

The female thread of the anchor K according to the present invention is not limited to a nut, and a female thread may be formed on the upper part of the cylindrical body. Further, the tubular portion other than the female screw portion is not limited to the tubular portion 2 formed of the pair of steel plates 6 as in the above embodiment, and an existing tubular body such as a circular tube may be applied.
Further, the means for locking and fixing to the reinforcing bars in the ALC panel P may be manual locking, fixing or automatic fixing, and may be after or before the formation of the reinforcing bar mat. The fixing is usually performed by welding, but it may be performed by a caulking method. Further, depending on the structure of the locking portion, the welding may be omitted. Further, the material of the anchor metal K and the length of the female screw portion are not limited.
Short nuts of IS (height of about 8 to 14 mm) and the like are also suitable in terms of cost.

[0016]

According to the present invention, since the structure is such that the anchor fitting is locked to one reinforcing bar, the locking operation is simplified, and the locking portion can be made small, thereby reducing the cost. Further, since the anchor has an opening at the engaging portion, the anchor can be engaged simply by fitting the reinforcing bar from the opening, and attachment to the reinforcing bar becomes easy. In addition, since the reinforcing bars can be attached even after they are formed in a mat or a cage shape, automatic attachment is facilitated.

If the engaging portion is formed into a substantially C-shape or a substantially inverted U-shape, and both ends of the opening are bent to the inner side to form a C-shape, the engaging operation is easy. In addition, even if welding is not necessary, or even if the fixing effect by welding is lost even if the welding is fixed, the safety is enhanced because it does not come off. Further, even in the case where the substantially C-shape is opposed to the pair, the welding fixation can be omitted and the safety can be improved. Further, in the case where the pair of steel plates having the concave portions are joined so as to face each other, the tubular portion and the locking portion can be easily manufactured, so that the manufacturing cost of the anchor is low and the shape is small. Can be freely deformed.

[Brief description of the drawings]

FIG. 1 is a perspective view showing one embodiment in which an anchor according to the present invention is locked to a reinforcing bar.

FIG. 2 is a sectional view of FIG.

FIG. 3 (a) is a perspective view of one of the steel plates constituting the anchor fitting according to the present invention. (B) An enlarged view of a portion A of (a).

FIG. 4 is a perspective view showing a second embodiment of the locking portion of the anchor according to the present invention.

FIG. 5 is a perspective view showing a third embodiment of the locking portion of the anchor according to the present invention.

FIG. 6 is a perspective view showing a fourth embodiment of the locking portion of the anchor according to the present invention.

FIG. 7 is a perspective view showing a fifth embodiment of the locking portion of the anchor according to the present invention.

FIG. 8 is a perspective view showing one embodiment of the present invention.

[Explanation of symbols]

 A ALC panel K Anchor fitting 1 Female thread part (nut) 2 Cylindrical part 3 Locking part 3a Opening 4 Communication hole 5 Reinforcing bar 6 Steel plate 7 Pressing part 8 Pinhole 9 Step

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Yoshiharu Muto No.2035 Shimoi, Shioimachi, Owariasahi City, Aichi Prefecture Inside Onoda ALC Co., Ltd.

Claims (8)

[Claims] An anchor fitting comprising a female screw part, a tubular part and a locking part is fixed to a reinforcing bar in an ALC panel, fixed and embedded in the panel.
In the LC panel, the anchor is provided with an opening into which the reinforcing bar is fitted at a locking portion thereof, and the anchor is locked to one reinforcing bar fitted and gripped or held by the opening. ,
Anchor fitting embedding A characterized by being fixed
LC panel. 2. The ALC panel embedded with anchors according to claim 1, wherein said locking portion has a substantially U-shape, a substantially inverted U-shape or a substantially C-shape. 3. The ALC panel embedded with anchors according to claim 1, wherein the opening of the locking portion is of an outwardly expanding type. 4. The device according to claim 1, wherein the locking portion has a substantially inverted U-shape, and both ends of the opening are bent to the inner rear side to form a C-shape. ALC panel with anchor fitting embedded. 5. The locking portion is separated into two parts with an interval larger than the diameter of a reinforcing bar, and a pair of substantially C
The ALC panel embedded with anchors according to claim 1, wherein the ALC panel has a character shape. 6. The ALC panel embedded with anchors according to claim 1, wherein said cylindrical portion and said locking portion are formed by joining a pair of steel plates having recesses formed thereon so as to face each other. 7. The ALC panel embedded with anchors according to claim 6, wherein a communication hole communicating with the locking portion is provided by opening a bottom portion of the cylindrical portion. 8. An anchor fitting embedding A according to claim 7, wherein an outer side surface of said steel plate above said locking portion is pressed.
LC panel.