JP3144572U - Embedded hardware - Google Patents

Abstract

An embedded metal object embedded along a column surface made of reinforced concrete is provided with a retaining member capable of preventing interference with the reinforcing bar with a simple structure, and the embedded metal object is mounted on a formwork. Provide an embedded metal fitting with a guide function for installation.
An embedded metal fitting 3 is embedded along a column surface made of reinforced concrete, and a retaining member 5 that prevents the embedded metal fitting from being pulled out. And a guide member 13 to prevent. The retaining member has a substantially T shape in which the head portion 7 is coupled to the rod-shaped portion, and a male screw portion that is threadedly engaged with the female screw portion on the embedded metal side is formed on the peripheral surface of the rod-shaped portion. A driver engaging groove 9 is formed at the end portion.
[Selection] Figure 3

Description

  The present invention relates to an embedded metal that is embedded along a column surface made of reinforced concrete, and more particularly to an embedded metal that is easy to install and has a retaining function.

  Conventionally, in this type of embedded metal, a retaining member is connected to a surface to be embedded. In this retaining member, a bar-shaped member is connected to two places near both ends of the embedded metal or at the four corners of the embedded metal, and is embedded in a concrete slab together with the embedded metal so that the embedded metal is made into concrete. Prevents slabs from coming off.

   By the way, concrete slabs etc. have reinforcing bars inside, so if this internal reinforcing bar interferes with the retaining member, do you cut either the reinforcing bar or the retaining member and weld them together? Alternatively, the embedded metal is shifted to a position where it does not interfere with the reinforcing bar.

  However, the method of cutting and welding either the reinforcing bar or the retaining member and using them both has a drawback that it requires a great deal of labor and manpower, and the strength of the embedded metal is reduced. Also, the method of using the embedded metal in a shifted manner has a drawback that it cannot be used for a positioned object such as a structure that uses a pipe support attached to the embedded metal.

  The present invention was made in view of such circumstances, and in the embedded metal embedded along the column surface made of reinforced concrete, provided with a retaining member that can prevent interference with the reinforcing bar with a simple structure, It is another object of the present invention to provide an embedded metal mold having a guide function when the embedded metal mold is mounted on a mold.

  In order to achieve the above-mentioned object, first, an embedded metal of the present invention is an embedded metal embedded along a reinforced concrete column surface, and the embedded metal is embedded in a column and embedded. A retaining member for preventing the metal fitting from coming off the pillar, and a guide member for preventing the embedded metal member from interfering with the reinforcing bar when the embedded metal object is fixedly disposed on the formwork. The rod-shaped portion has a substantially T-shape with the head portion coupled, and a male screw portion that is threadedly engaged with the female screw portion on the embedded metal side is formed on the peripheral surface of the rod-shaped portion. Is characterized in that a driver engagement groove is formed.

  Similarly, in order to achieve the above object, the embedded metal of the present invention is secondly characterized in that, in the first feature, the retaining member is disposed on the upper, lower, left and right sides of the inner surface of the embedded metal. It is said.

  Similarly, in order to achieve the above object, according to the third aspect of the present invention, in the first or second feature, the guide members are disposed on both sides of the inner surface of the embedded metal fitting, It consists of the substantially arc-shaped rod-shaped member which protrudes inside along the up-down direction of a hardware.

  Similarly, in order to achieve the above object, according to the embedded metal fitting of the present invention, fourthly, in any one of the first to third features, the head portion of the retaining member has a disk shape. It is a feature.

The present invention has the following excellent effects.
(1) The embedded metal retaining member has a substantially T-shape in which the head portion is coupled to the rod-shaped portion, and the male screw that is screwed onto the peripheral surface of the rod-shaped portion with the female screw portion on the embedded metal side Since the driver engagement groove is formed at the end, the embedding amount of the retaining member is minimized when the embedded metal is fixedly disposed inside the mold. After installation, the retaining member is rotated from the outside of the mold with a screwdriver and pushed out to a predetermined position to prevent interference between the retaining member and the reinforcing bar when the embedded metal is disposed. be able to. In addition, since the guide member is provided to prevent interference with the reinforcing bar when the embedded metal object is fixedly disposed on the mold, the embedded metal object can be further smoothly disposed.
(2) The guide member is provided on both sides of the inner surface of the embedded metal, and is formed of a substantially arc-shaped rod-shaped member that protrudes inward along the vertical direction of the embedded metal. A guide function can be provided.
(3) By making the head portion of the retaining member into a disk shape, the retaining member can be smoothly rotated and the retaining function can be reliably achieved.

  BEST MODE FOR CARRYING OUT THE INVENTION The best mode for carrying out an embedded metal fitting of the present invention will be described in detail with reference to the drawings. However, the present invention is not construed as being limited to this, and so long as it does not depart from the scope of the present invention. Various changes, modifications, and improvements can be added based on the knowledge of those skilled in the art.

A first embodiment of the present invention will be described with reference to FIGS.
FIG. 1 is a front view showing a state in which an embedded metal object is mounted on a reinforced concrete column, FIG. 2 is a front view of the embedded metal object, FIG. 3 is a view taken along the line AA in FIG. 2, and FIG. It is a side view which shows a member.

  In FIG. 1, a reinforced concrete column 1 is formed by placing concrete in a state where a reinforcing bar 2 is arranged. At that time, embedded metal 3 is placed on the column surface as necessary. Embedded. The embedded metal 3 is, for example, a metal plate formed in a rectangular shape, and a shutter or the like is mounted on the embedded metal 3, for example.

  As shown in FIG. 2 and FIG. 3, the embedded metal fixture 3 is composed of a rectangular metal plate 4, and the inner surface (the side located on the center side of the column is referred to as the inner surface) is almost perpendicularly retained. The member 5 is fixed by means such as welding. In this example, the retaining members 5 are provided at four locations so as to be positioned on the top, bottom, left and right of the embedded metal 3, but the number and position thereof are appropriately determined in design.

  As shown in FIG. 2, the retaining member 5 has a substantially T shape in which a disc-like head portion 7 is coupled to a rod-like portion 6, and is fixed to the embedded metal 3 on the peripheral surface of the rod-like portion 6. A male screw portion that is screwed with the female screw portion of the nut 8 is formed, and a driver engagement groove 9 is formed at an end portion thereof.

  On both sides of the inner surface of the embedded metal 3, guide members 13, 13 made of substantially arc-shaped bar-shaped members projecting inward along the vertical direction of the embedded metal 3 are fixed. When the embedded member 3 is disposed in a state of being fixed to the inner surface of the mold 10, the guide member 13 prevents the retaining member 5 from interfering with the reinforcing bars and facilitates the disposition operation. Is. Therefore, it is desirable to use a steel bar or the like having a smooth surface as the guide member 13, and its shape protrudes in a substantially arc shape inward as shown in FIG.

As shown in FIG. 3, concrete is placed in a state where the mold 10 is disposed at a predetermined position around the reinforcing bar 2. At this time, the embedded metal 3 is fixed to the fixing bolt 11 on the inner surface of the mold 10. It is fixed by. The fixing bolt 11 is screwed into a nut welded to the inner surface of the embedded metal 3 to perform a fixing function.
When the formwork 10 is disposed at a position where the pillar 1 is constructed, the retaining member 5 does not interfere with the reinforcing bar 2 (usually, the reinforcing bars are composed of vertical and horizontal bars) as indicated by solid lines. The head portion 7 is set so as to be located outside the reinforcing bar 2 (on the mold 10 side). The guide members 13, 13 provided on both sides of the inner surface of the embedded metal 3 guide the embedded metal 3 while preventing interference between the retaining member 5 and the reinforcing bar 2. For this reason, it is possible to prevent the retaining member 5 from interfering with the reinforcing bars 2 and obstructing the installation of the mold 10 and the embedded hardware 3.

After the placement of the mold 10 is completed, the driver 12 is engaged with the driver engagement groove 9 from the outside of the mold 10 and pushed out until the head portion 7 of the retaining member 5 is positioned inside the reinforcing bar 2. When the retaining member 5 is pushed out, the head portion 7 is positioned inside the reinforcing bar 2, and the end surface of the rod-like portion 6 is flush with the surface of the embedded metal 3. When the retaining member 5 is rotated and pushed out, the head portion 7 has a disk shape and thus rotates smoothly.
It is convenient to mark the pushing position of the retaining member 5 on the driver 12 in advance.

  After the concrete is placed, the fixing bolt 11 is removed from the embedded metal 3 leaving its nut portion, and when the mold 10 is removed, the embedded metal 3 is flush with the surface of the concrete column 1. It becomes a state embedded in. Since the embedded part 3 is embedded in the concrete with the head portion 7 of the retaining member 5 positioned inside the reinforcing bar 2, it is firmly fixed to the concrete pillar 1, and the embedded part 3 has a gravity such as a shutter. Even if it works, it will not come out. Furthermore, since the guide members 13 and 13 fixed to the embedded metal 3 are also embedded in the concrete, the embedded metal 3 is more firmly fixed to the column 1.

It is a front view which shows the state by which the embedded metal fitting was mounted | worn with the column made from reinforced concrete. It is a front view of an embedded metal fitting. It is an AA arrow line view of FIG. It is a side view which shows a guide member.

Explanation of symbols

1 Reinforced concrete columns
2 Rebar
3 Embedded hardware
4 plates
5 retaining member
6 Bar-shaped part
7 Head
8 nuts
9 Driver engagement groove 10 Form 11 Fixing bolt
12 Drivers
13 Guide member

Claims (4)

  In the embedded metal object embedded along the column surface made of reinforced concrete, the embedded metal object is a retaining member that is embedded in the column and prevents the embedded metal material from coming off the column, and the embedded metal object is a formwork. And a guide member that prevents interference with the reinforcing bar when disposed, and the retaining member has a substantially T-shape in which the head portion is coupled to the rod-shaped portion. The embedded metal object is characterized in that a male screw part that is screwed with a female screw part on the embedded metal side is formed on the peripheral surface, and a driver engaging groove is formed at an end part thereof.   The embedded metal fitting according to claim 1, wherein the retaining member is disposed on the top, bottom, left, and right of the inner surface of the embedded metal.   3. The embedded member according to claim 1, wherein the guide member is formed of a substantially arc-shaped bar-shaped member that is disposed on both sides of the inner surface of the embedded metal and protrudes inward along the vertical direction of the embedded metal. Inclusion. The embedded metal article according to any one of claims 1 to 3, wherein the head portion of the retaining member has a disk shape.

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