JPH0568166B2 - - Google Patents

Description

Detailed Description of the Invention (Field of Industrial Application) The present invention provides a method for fixing a buried box or a box cover to a formwork for embedding it in a concrete wall, etc., and a method for fixing a box cover to the formwork. Regarding the formwork fixing device used.

(Prior Art) Conventionally, in the case of a buried box buried in a concrete wall, a mounting tool 1 is attached to the bottom 115 of the buried box 110, as shown in FIGS.
30 to attach the support rod 140, and fix this support rod 140 to the reinforcing bar 150 mm or the like using wire.
Furthermore, by installing a tensioner 160 between the bottom 115 of the buried box 110 and one formwork 120, the buried box 110 is placed in the other formwork 120.
It is positioned and fixed between the opposing formworks 120 so that they are in close contact with each other.

In addition, in the case of a buried box buried in a precast board, as shown in FIGS. 16 and 17, the opening 116 of the buried box 110 or the opening 116 of the box cover 111 attached to the buried box 110 The positioning member 170 made of an elastic body corresponding to the bolt 180 and the nut 1
90 is used to fix it to the formwork 120, and by attaching it to this positioning member 170, it is positioned and fixed to the formwork 120. Further, as shown in FIG. 18, a positioning member 170 made of an elastic body corresponding to the opening of the buried box or the opening 116 of the box cover 111 attached to the buried box 110 is attached to the formwork 120 using a nut 190. It is fixed by fitting into the fixed pin body 121, and is positioned and fixed to the formwork 120 by being attached to this positioning member 170.

(Problem to be Solved by the Invention) However, in the conventional method of fixing the buried box 110 buried in a concrete wall etc. to the formwork 120, the bottom 1 of the buried box 110
A support rod 140 is attached to the mold 15 using a fixture 130, and this support rod 140 is fixed to a reinforcing bar 150 or the like using a wire.
A tensioning tool 16 is installed between the bottom 115 of the buried box 110 and one formwork 120 in order to bring the parts 10 into close contact with each other.
0 had to be constructed, and the positioning and fixing work was extremely troublesome.

In addition, in the conventional method of fixing the buried box 110 buried in a precast board or the box cover 111 attached to the buried box to the formwork 120, the positioning member 170 is
Not only is it troublesome to fix to the formwork 120 using the nuts 80 and 190 or the pin bodies 121 and the nuts 190, but also the opening 116 of the buried box 110 of various shapes or the box cover 111 attached to the buried box 110 is difficult to fix. Positioning members 170 corresponding to the openings 116 must be prepared and these positioning members 170 must be selected and used as appropriate, making the positioning and fixing work extremely troublesome.

Furthermore, regarding the conventional buried box 110 buried in a concrete wall etc. and the conventional buried box 110 buried in a precast board,
If it is not fixed in close contact with the formwork 120, there is also the problem that concrete will invade the interior during concrete pouring, and additional work will be required to scrape out the invaded concrete.

The present invention has been made in view of the above-mentioned circumstances, and its purpose is to provide a buried box to a formwork or a box cover that can be attached to a buried box simply and reliably without using any additional members. An object of the present invention is to provide a method for fixing a buried box or a box cover to a formwork, and a formwork attachment used in this method.

(Means for Solving the Problems) The means taken in the first claim to solve the above-mentioned problems are as shown in FIGS. 1 to 11.
A punchable closing portion 12 is integrally molded in an opening portion such as a cable draw-out opening or a wiring equipment installation opening, and at least two or more fitting portions 13 are provided in this closing portion 12, and the fitting portion 13 is provided in the formwork 20. To the formwork 20 of the buried box 10 or box cover 11, which is characterized in that a pin body 21 corresponding to the joint part 13 is attached, and the fitting part 13 is fitted to the pin body 21 attached to the formwork 20. The means adopted in the second claim is, ``At least two or more pin bodies 21 attached to the formwork 20, and a fixing method for fixing the pin bodies 21 to be attached to the formwork 20, and a fixing method for fixing the pin bodies 21 to be attached to the formwork 20, A formwork fixing device characterized by comprising a buried box 10 or a box cover 11, in which a closing part 12 is integrally molded, and a fitting part 13 in which the pin body 21 is fitted into the closing part 12. It is.

(Actions of the invention) By adopting the above-mentioned measures in the first claim, the following effects can be obtained.

A punchable closing portion 12 is integrally molded into an opening portion of the buried box 10 or the box cover 11 such as a cable pull-out opening or a wiring device attachment opening, and this closing portion 12 is provided with at least two or more fitting portions 13. , attach the pin body 21 corresponding to the fitting part 13 to the formwork 20, and
By fitting 3 into the pin body 21 attached to the formwork 20, the buried box 10 is easily and reliably positioned and fixed to the formwork 20 without using any additional members.

Furthermore, by providing at least two or more fitting parts 13 on the buried box 10 or the box cover 11 and the pin bodies 21 corresponding to the fitting parts 13 on the formwork 20, that is, by providing the buried box 10 or the box cover 11 with at least two fitting parts 13, By fixing at two points, if you fix these at one point,
Although there is a possibility that the buried box 10 or the box cover 11 may tilt or rotate about the fixed point, such concerns are eliminated.

Furthermore, a blockage part 12 that can be punched out is provided in the opening part of the buried box 10 or the box cover 11, such as a cable pull-out opening or a wiring equipment installation opening.
is integrally molded, and a fitting part 13 is attached to this closing part 12.
After removing the formwork 20, the closing part 12 is punched out to form an opening such as a cable pull-out opening or a wiring equipment installation opening.
The fitting part 13 is not left exposed on the wall surface.

Further, by integrally forming the closing portion 12 in the opening portion, concrete is prevented from entering the inside of the burial box 10.

Further, by adopting the above-described measures in the second claim, the following effects can be obtained.

At least two or more pin bodies 21 attached to the formwork 20 are integrally formed with a blockage part 12 that can be punched out at an opening such as a cable pull-out opening or a wiring equipment installation opening, and the pin bodies 21 are attached to the blockage part 12. The pin body 21 is attached to the formwork 20, and the fitting part 13 is attached to the pin body 21 attached to the formwork 20. Once fitted, the embedded box 10 or the box cover 11 can be positioned and fixed to the formwork 20 easily and reliably without using any additional members.

(Example) Hereinafter, the present invention will be described in detail according to an example shown in the drawings.

As shown in FIG. 1, the buried box 10 according to the first and second claims is provided with a painting allowance cover, which is one of the box covers 11, and a cable draw-out opening of the box cover 11. Or, in openings such as wiring equipment installation openings,
The closing portion 12 is integrally molded. A thin wall portion 14 is formed around the closing portion 12, and the formwork 2
0 is removed, the closing portion 12 is punched out using a screwdriver or the like to form an opening such as a cable pull-out opening or a wiring equipment mounting opening. Further, this closing portion 12 is provided with two fitting portions 13 into which the pin bodies 21 are fitted. In this embodiment, the buried box 10
The closing part 12 of the box cover 11 is attached to the box cover 11.
Although the fitting portion 13 is provided in the embedding box 10 itself, the fitting portion 13 may be provided in the closing portion 12 of the burial box 10 itself, as shown in FIG.

Pin body 21 according to the first claim and the second claim
As shown in FIG. 2, by driving the nail 23 inserted into the insertion hole 22 into the formwork 20, the formwork 20
It is designed to be installed in Pin body 21
In addition to those shown in FIGS. 6 and 7, which are attached to the formwork 20 by driving nails 23 inserted into the insertion holes 22 into the formwork 20, as shown in FIGS. 8 and 10, A through-hole 24 is provided in the formwork 20, and the screw portion 25 of the pin body 21 is screwed into the through-hole 24 to be attached to the formwork 20, or as shown in FIG. 9 and FIG. A through hole 24 is provided in the frame 20, the threaded portion 25 of the pin body 21 is inserted into the through hole 24, and a nut 26 is tightened to the threaded portion 25 from the opposite side of the formwork 20, thereby fixing it to the formwork 20. The method of attachment to the formwork 20 is not particularly limited. Further, the shape of the pin body 21 is not particularly limited, and may have a concave portion at the tip, for example.

There is only one fitting part 13 provided on the box cover 11 or the buried box 10, and one pin body 21 attached to the formwork 20, and the box cover 1
1 or the buried box 10 is fixed to the formwork 20 at one point, there is a risk that the box cover 11 or the buried box 10 may tilt or rotate about the pin body 21;
Alternatively, at least two or more fitting parts 13 are installed in the buried box 10, and two or more pin bodies 2 are installed in the formwork 20.
1 and by fixing the box cover 11 or buried box 10 to the formwork 20 at at least two points, the above-mentioned concerns are completely eliminated. In addition, the box cover 11 or the buried box 10
The number of fitting portions 13 provided in the fitting portion 13 may be at least two or more, and the number is not limited.

Next, an example of a method of fixing the buried box 10 to the formwork 20 according to the first aspect will be explained.

First, as shown in FIG. 2, the nail 23 is inserted into the insertion hole 22 of the pin body 21, and the box cover 11 is placed in the position where the buried box 10 of the formwork 20 is fixed.
The pin body 21 is fixed to the formwork 20 by driving nails 23 so as to correspond to the fitting portions 13 of. At this time, by using a gauge 30 as shown in FIG. 12, which corresponds to the pitch of the fitting part 13 of the box cover 11, the pin body 21 can be easily and accurately fixed to the formwork 20.

Next, as shown in FIG.
Fitting portion 13 of box cover 11 attached to
mate. By doing this, the buried box 10 is fixed to the formwork 20.

After removing the formwork 20, as shown in FIG.
4 to form an opening such as a cable pull-out opening or a wiring equipment mounting opening. By punching out the closing portion 12, the fitting portion 13 does not remain exposed on the wall surface.

It goes without saying that the method of fixing the buried box 10 to the formwork 20 according to the first aspect can also be applied to the production of precast boards, as shown in FIGS. 10 and 11.

(Effects of the Invention) As described above, the method of fixing the buried box to the formwork according to the first claim is as follows. The closing part is integrally molded, and the closing part has at least two
Providing three or more fitting parts, attaching pin bodies corresponding to the fitting parts to the formwork, and fitting the fitting parts to the pin bodies attached to the formwork.''
This feature makes it possible to easily and reliably position and fix the buried box to the formwork without using any additional members, which significantly improves work efficiency.

Furthermore, since the buried box is fixed at at least two points, there is no need to worry about it tilting or rotating.

Furthermore, after the formwork is removed, the fitting part remains exposed on the wall surface because the fitting part is provided in the closed part that is punched out to form an opening such as a cable pull-out opening or a wiring equipment installation opening. There is no.

Furthermore, by providing a closing portion at the opening, concrete will not enter the inside of the burial box.

Further, the formwork attachment according to the second claim includes “at least two or more pin bodies attached to the formwork;
It consists of a buried box or a box cover, which is integrally formed with a punchable closing part in an opening such as a cable pull-out opening or a wiring equipment installation opening, and is provided with a fitting part into which the pin body is fitted into the closing part. The feature is that the pin body is attached to the formwork, and the fitting part is fitted to the pin body attached to the formwork, and the process can be easily and reliably done without using any separate parts. The buried box can be positioned and fixed to the formwork, significantly improving work efficiency.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing a buried box and a pin body according to the first and second claims, and FIGS.
The figures are partial sectional views showing step by step a method of fixing the buried box to the formwork according to the first claim, and FIG. 5 is a buried box equipped with a fitting part according to the first and second claims. FIGS. 6 to 9 are perspective views showing pin bodies according to the first and second claims, and FIGS. 10 and 11 are partial sectional views showing the pin bodies according to the first and second claims. FIG. 12 is a front view showing the gauge, and FIGS. 13 and 14 are conventional fixing methods for embedding the buried box in a concrete wall. Fig. 15 is a side view showing the conventional fixing method of burying the buried box in a concrete wall, and Figs. 16 to 18 show the conventional fixing method of burying the buried box in a precast board. FIG. Explanation of symbols 10... Buried box, 11... Box cover, 12... Closing part, 13... Fitting part, 14
...Thin wall part, 20... Formwork, 21... Pin body, 22... Insertion hole, 23... Nail, 24... Through hole, 25... Screw part,
26... Nut, 30... Gauge, 110... Buried box, 111... Box cover, 115... Bottom,
116... Opening, 120... Formwork, 130... Fixture, 140... Support rod, 150... Rebar, 160... Tensioner, 170... Positioning member, 180... Bolt,
190...Natsuto.

Claims (1)

[Scope of Claims] 1. A punchable closing portion is integrally formed in an opening portion of a buried box or a box cover such as a cable pull-out opening or a wiring device attachment opening, and at least two or more fitting portions are provided in this closing portion. A formwork for a buried box or a box cover, characterized in that a pin body corresponding to the fitting part is attached to the formwork, and the fitting part is fitted to the pin body attached to the formwork. fixing method. 2. At least two or more pin bodies attached to the formwork are integrally formed with a punchable closing part in an opening such as a cable pull-out opening or a wiring equipment installation opening, and the pin bodies are fitted into the closing part. 1. A formwork fixing device comprising a buried box or a box cover having a fitting part.