JPS58157308A - Wiring method in concrete building - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a wiring method in a concrete frame such as a concrete building, and more specifically, it relates to a wiring method in which wiring recesses are provided in a concrete structure such as a concrete wall or floor in a concrete building. A simple method for electrical extension work where cables (including electric wires, the same applies hereinafter) and wiring boxes (including not only out-left boxes, etc., but also distribution boards, the same applies hereinafter) are inserted and fixedly wired. Regarding.

Traditionally, extension work in concrete buildings was carried out using (6)
(2) A method using a conduit and an embedded box buried in a concrete wall or floor; (b) A groove is provided in the cape of the concrete wall or floor and the conduit or cable is inserted;
There are methods of concealing the grooves using a filter or a cover.

Method (a) is the most commonly used construction method, in which the conduit is fixed with binding wires etc. after assembling, and the embedded box or embedded box formwork connected to the conduit is attached to the concrete IJ. -) Temporarily fix it to a concrete panel and pour concrete to expose it on the wall, floor, etc. After the concrete has solidified, remove the concrete panel and install the embedded box if formwork is used. This is a method of inserting electric wires etc. into the conduit, and in the case of finishing the interior panel, cutting out the embedded box part of the interior panel, attaching the interior panel, and wiring.

Therefore, it is necessary to process the conduit, connect the conduit, fix the conduit and the embedded box, prevent the concrete from entering the conduit and the embedded box, and insert the electric wires into the conduit and install it after assembling the reinforcement. This method takes a long time to finish and requires a lot of effort and piping materials.

Furthermore, in the case of interior panel finishing, it is necessary to accurately cut out the embedded box portion, which requires great care and skill.

Method (b) includes a method of burying the duct in a concrete floor, or a method of installing it on a concrete wall or floor, etc. Compared to method (a) above, the wiring work is easier, but Construction methods that use ducts require materials such as durable ducts and duct covers that can withstand the heavy pressure of concrete, and it is also necessary to take measures to prevent concrete from seeping into the ducts.

When demolishing trenches, concrete walls, and floors, vibrations, noise, and dust are generated using a vibrating drill, and it takes time and effort.

In any case, the marked method and method (b) are cumbersome and require materials or both.

Considering this from another perspective, method (a) is a method in which a recess for an embedded box is opened in the concrete F frame, and method (b) is a method in which a groove for wiring is similarly opened in the concrete.

This invention was made to solve these problems, and aims to save labor and resources in wiring work in concrete buildings.

That is, in the wiring method for a concrete building according to the present invention, the wiring joint shape material 2 and the wiring box shape material 8 are integrally connected and temporarily fixed at predetermined positions on the inner surface of a temporary frame, concrete is poured, and the concrete construction is performed. A recess 8 for wiring that opens on the true surface of the body is provided, and a cable 4 is inserted into the recess 8.
and a method of inserting and fixing the wiring box 6.

Toe 9: When pouring concrete, cut out a wiring recess into which the wiring joint groove into which only the cable is inserted and the wiring box recess into which only the wiring box is inserted are integrated into the surface of the concrete building. Since the boxes are inserted and fixed into the wiring recesses and wired, this method saves the labor of machining and connecting conduits and wiring, and does not require piping materials.

Furthermore, since the opening of the recess for wiring is narrow, it is a method that saves time and materials, such as by simplifying the preparation process when performing wall finishing such as interior panel finishing and mortar finishing, which have been widely applied in recent years.

Next, in FIG. 1 illustrating the wiring method in a concrete building according to the present invention based on the embodiment shown in the drawings, 1 is a normal concrete panel, 2 is a root-shaped wiring joint material, and 8 is a planar wiring joint material. These are wiring box shapes, each of which is a component of a temporary frame for concrete pouring. In other words, the wiring joint profile 2 corresponds to the wiring cable, and the wiring pock 7-profile 8 corresponds to the wiring box.

Note that when attached to the concrete panel 1, the wiring joint profile 2 and the wiring box profile 8 may be provided with brim-like protrusions 2a and 8a, respectively, which are parallel to the concrete panel 1.

Therefore, the concrete at the predetermined position requiring wiring in the temporary frame is
The wiring joint profile 2 and the wiring box profile 8 are appropriately combined and integrated into the F panel 1 according to the wiring configuration, temporarily fixed to the same concrete F panel 1, and concrete is poured.

After curing the concrete, remove the temporary frame 9, the wiring joint shape material 2, and the wiring box shape material 8, and as shown in FIG. Formed on the surface of body A.

Note that when the protrusions 2a and 8a are provided on the wiring joint material 2 and the wiring box material 8, respectively, undercut grooves 6a and 7a are formed in the wiring groove 6 and the wiring box recess 7, respectively. .

Next, as shown in FIG. 8 and FIG. 4, a cable 4 such as VVF is inserted into the above-mentioned wiring graben 6, and then a stopper 9 is inserted to fix the same cable 4, and the cable 4 is fixed. 4 terminals are pooled in the wiring box recess 7.

The stopper 9 is made of a band-like elastic material and has leg portions 9a.

The stopper 9 is formed into a gate shape that widens at the end, consisting of a bridge portion 9a and a bridging portion 9b, and when it is compressed into the wiring joint groove 6, the stopper 9 causes the leg portions 9a, 9a to expand laterally. The cable 4 is held in elastic contact by the pressing force and is also pressed into contact with the cable 4 in the wiring joint groove 6 at the bridge portion 9b, thereby fixing the cable 4.

Moreover, the undercut groove 9a and the undercut groove 6a are engaged in the wiring joint groove 6, so that the cable 4 can be securely fixed.

On the other hand, the method of fixing the wiring box 5 differs depending on the type of wall finish. In the case of an interior panel finish, the wiring box b is fixed directly to the interior panel 1o or to the concrete wall in the wiring box recess 7. be.

When fixing to the interior panel IO, cut out a box window hole 11 at a position corresponding to the wiring box recess 7 of the interior panel IO, and insert the panel box 6a of the wiring box into this box window hole 11. Concrete wall K in recess 7 for Ruma-9 wiring box [When fixing in one place, use pock 7-5'b for tensioning, which has the function of allowing the wiring box itself to be self-fixed to the concrete wall.

Figures 5 and 96 show interior panels 10 directly attached to the surface of concrete frame A using adhesive 18.
FIG. 6 shows an example in which a panel box 6a is fixed to a company interior box 10, and FIG. 6 also shows an example in which a prop box 6b is fixed to a concrete wall in a wiring box recess 7.

Further, FIG. 7 shows an example in which a panel box 6a is fixed to an interior panel 10 which is pasted onto the surface of a concrete body A using an adhesive 18.

On the other hand, in the case of mortar finishing, the cable 4, such as a direct buried cable, is inserted and fixed into the wiring joint groove 6, and the tension box 5b is inserted into the wiring box recess 7, as shown in FIG.
is charged and fixed, and mortar 12 is applied to the entire surface of concrete body A to finish.

Depending on the finished thickness of the mortar 12, as shown in FIG.
When the undercut groove 7a is provided in the recess 7 of the wiring box, the extension 9 of the wiring box and the undercut groove can be engaged with each other to more securely fix the wiring box. .

On the other hand, if 11-sided finishing is not applied, the cable and wiring box may be fixed in the same manner as in the case of mortar finishing.

Needless to say, in both panel finishing and mortar finishing, a decorative plate 17 is used as appropriate, and a finish 16 such as crone paste can be applied as appropriate.

Although the wiring joint material 2 and the wiring box material Bti corrugated pole paper may be used, it is more economical to use a polymeric material or the like because it can be used many times.

Furthermore, if the protrusions 2a and 8a are provided on the wiring joint profile 2 and the wiring box profile 8, respectively, they may be made of a flexible material that can be cut out, and should be hollow to the extent that they will not be deformed by the heavy pressure of the concrete. Providing a portion on each of the mold members 2.8 makes it easier to cut out the mold.

As described above, the wiring method for concrete buildings according to the present invention is a method in which the cable 4 and the wiring box 6 are inserted and fixed into the wiring recess 8 formed on the surface of the concrete frame, and therefore the construction is easy and the construction period is shortened. It is shorter and requires fewer materials, saving labor and resources.

Moreover, it can be easily constructed at any location, and if both mold members 2 and 8 are made of a polymeric material or the like, it can be used many times, which is very convenient.

Moreover, even if the concrete strip enters the wiring recess 8, it is only necessary to remove the concrete strip from the surface of the concrete structure A, and compared to the problem F caused by concrete strip entering into the conduit pipe in the conventional construction method, It's an extremely simple process.

Further, when the protrusions 2a and 8a are provided on the wiring joint material 2 and the wiring box material 8, respectively, it is advantageous that undercut grooves 6a and 7a are formed within the wiring recess 8.

In addition, if it is unavoidable due to the structure of the building, the electric conduit 16 buried in the concrete frame A as shown in FIG.
It is also possible to use the method in combination with the method of this invention, but in most cases, the method of this invention can be used.

[Brief explanation of drawings]

Figure iii shows an embodiment of the wiring method in a concrete 1, 1-) building according to the present invention. Perspective view, Figure 2 is a schematic perspective view showing wiring recesses cut out on the surface of the concrete frame, Figure 8 is a schematic perspective view showing how to fix cables in wiring recesses, and Figure 4 is a schematic perspective view showing how to fix the wiring box. FIG. 5 is a partially omitted vertical cut perspective view showing an example of the wiring method according to the present invention, and FIG. 6 is a schematic perspective view showing the relationship between the cable and the wiring recess before finishing. 7 is a schematic cutaway side view showing a modified example; FIG. 7 is a view equivalent to FIG. 6 showing another modified example of wall finishing; FIG. 8 is a diagram equivalent to FIG. 6 showing another modified example of wall finishing; FIG. 6 is a view corresponding to FIG. 6 showing another modification of the wall surface finish, and FIG. 10 is a schematic cutaway side view showing an example of connection with a conduit by a conventional construction method. 1 Concrete panel 2 Wiring joint profile 8 Wiring poknu profile 4 Cable 6 Wiring box 8 Recess A Concrete frame 1st figure 2nd room 4 figure end 3rd figure 5 WJ 6th room
7 Figure 8 Figure 9 Figure 10
figure

Claims (1)

[Claims] The wiring joint shape material and the wiring box shape material are temporarily fixed together in a predetermined position on the inner surface of the temporary frame, concrete is poured, a recess for wiring is created in the concrete frame, and a cable and a cable are inserted into the recess. A wiring method for a concrete building characterized by inserting and fixing a wiring box.