JPH0248698B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method of constructing a floor system using a concave-convex plate for arranging conduits for underfloor wiring.

In recent years, as a construction method for installing underfloor wiring conduits for floor outlets, telephone lines, and other electric wires, multiple studs are placed in the concrete floor to protrude below the bottom surface of the concrete floor, and joint boxes are attached to the lower ends of the studs. However, a method has been devised in which an underfloor wiring conduit is arranged in this joint box along the underside of the concrete floor.

However, when placing studs, there are problems with the strength of holding the studs on the concrete floor.
There were various problems with the arrangement of the underfloor wiring conduit to the underside of the concrete floor.

The construction method of the floor system of this invention completely eliminates the drawbacks of these conventional examples, and its purpose is to strengthen the retention of studs on the concrete floor and to provide a conduit for underfloor wiring to the underside of the concrete floor. The aim is to make the facilities closer to each other.

DESCRIPTION OF THE PREFERRED EMBODIMENTS The floor system construction method of the present invention will be described below with reference to drawings showing examples thereof.

As shown in FIG.
A through hole 3 is provided in the through hole 3, a fixing metal fitting 4 having a threaded groove is fixed by welding or tapping screws, and a stud 5 is screwed into the fixing metal fitting 4 to pass through the through hole 3.

Then, as shown in FIG. 2, a blank cap 6 is screwed onto the upper end of the stud 5 and concrete 7 is poured.

The main body part 8 of the stud 5 is made of a steel pipe, and in the embodiment, the upper part is slightly thickened, and has thread grooves on the inner surface of the upper part and the outer surface of the lower part, and a height and horizontal adjustment insert 9 on the upper part. The fixing fitting 4 is screwed into the lower part as described above.

Next, the adapter 10 is screwed into the lower end of the stud 5 passing through the through hole 3 of the uneven plate 1.

This adapter 10 has a mounting part 11 with a thread groove formed on the inner surface of the upper part, and the lower part is made in the shape of a truncated cone. When screwed into the lower end of the stud 5 as described above, the upper part of the adapter 10 The attachment portion 11 enters inside the convex portion 2 of the concave-convex plate 1, and only the lower part of the truncated cone shape protrudes below the convex portion 2 of the concave-convex plate 1.

Then, a joint box 12 is attached to the lower side of this adapter 10, and an underfloor wiring conduit 13 is attached to this joint box 12.
An underfloor wiring conduit 13 is arranged along the lower surface of the uneven plate 1.

Note that 14 shown in FIG. 3 is a floor outlet installed after removing the blind cap 6.

The floor system construction method of the present invention is constructed as described above, and according to this construction method, concrete is poured with the studs 5 fixed to the uneven plate 1 with the fixing fittings 4. The holding strength of the stud 5 to the concrete floor will be greatly enhanced.

Furthermore, since the mounting portion 11 of the adapter 10 enters inside the convex portion 2 of the uneven plate 1, the mounting space for the adapter 10 is reduced by that amount, and the joint box 12 can be mounted close to the bottom surface of the uneven plate 1. As a result, the underfloor wiring conduit 13 can be installed closer to the underside of the concrete floor.

[Brief explanation of the drawing]

The drawings show an embodiment of the invention, and FIGS. 1 to 3 are explanatory diagrams showing the construction state thereof. 1... Uneven plate, 2... Convex portion, 4... Fixing metal fittings, 5... Stud, 7... Concrete, 1
0...Adapter, 11...Mounting section, 12...Joint box.

Claims (1)

[Claims] 1 Drill a hole in the convex part 2 of the concave-convex plate 1 and pass the stud 5 through it, fix the stud 5 to the concave-convex plate 1, pour concrete 7, and install the adapter 10 inside the convex part 2 of the concave-convex plate 1. Part 1
Attach the adapter 10 to the end of the stud 5 so that the joint box 1 fits into the joint box 1 on the outside of the convex part 2 of the concave-convex plate 1.
2, and then this joint box 12.
This floor system construction method is characterized in that an underfloor wiring conduit 13 is attached to the underfloor wiring conduit 13, and the underfloor wiring conduit 13 is arranged along the lower surface of the uneven plate 1.