JPH0320875B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION <Field of Industrial Application> The present invention relates to a structure for drawing out conductive wires for connecting electrical equipment without unnecessarily exposing the conductive wires on a floor surface.

<Prior Art> There have been two types of conventional structures for drawing out conductive wires.

One is to form wiring pits b running vertically and horizontally on a slab concrete floor a, and to cover the wiring pits b with metal groove covers c, as shown in FIGS. 5 and 6.
A conductive wire 1 is drawn out into the pit b from the wire opening d at a suitable location.

By the way, in this structure for drawing out conductive wires, since the wiring pit b is formed in advance on the floor surface, even if the metal groove cover c is attached to the upper surface of the floor, the wiring pit b is not covered. The wiring pits b were exposed in all directions on the upper surface of the floor, which had a drawback that spoiled the aesthetic appearance.

Furthermore, if straight wiring pits b are formed vertically and horizontally on the slab concrete floor a, the strength of the slab concrete floor a will be significantly reduced and its function as a base will be impaired. Therefore, mortar e is poured onto the slab concrete floor a. , it is necessary to form wiring pits b in such a mortar layer e. For this reason,
There was a drawback that the position of the floor surface f was higher than the slab concrete floor a, and the actual height of each room was compressed accordingly.

The other method is to place conductive wires l at intervals s on a concrete slab floor a, as shown in Figure 7.
It consists of a floating floor structure that supports the floor plate g. This structure does not require wiring pits and is beautiful, and has the advantage that the conductive wire l can be drawn out from any position by drilling holes in the floor plate g.
Because it needs to be supported on the slab concrete floor a, it has the disadvantage of requiring a large number of supporting metal fittings h to maintain its strength, making it expensive, and even if such metal fittings h are used, the structure described above cannot be improved. Compared to pouring mortar e onto a concrete floor surface a and forming a floor surface f thereon, it has the disadvantage that sufficient strength cannot be achieved. Also, like the above-mentioned structure, there was a drawback that the height of the floor surface f was higher than that of the slab concrete floor a.

The present invention aims to eliminate the drawbacks of the conventional conductive wire drawing structure described above.

<Means for Solving the Problems> The present invention buries relay boxes covered with covers for drawing out conductive wires in a slab concrete floor, and connects each relay box with a wiring pipe under the floor surface. However, the present invention is characterized in that the conductive wire running inside the wiring pipe can be taken out from the lid of the relay box as appropriate.

<Function> The conductive wire 1 is drawn out from a relay box for drawing out the conductive wire buried in a proper place in the slab concrete floor. Furthermore, unlike the wiring pits b shown in Figures 5 and 6, which run horizontally and vertically across the floor, the relay boxes are scattered only at required locations on the slab concrete floor. There is no reduction in the holding strength of the material. Therefore, it can be used as a floor surface directly above the concrete slab floor.

<Example> An example of the present invention will be described with reference to FIGS. 1 to 4.

In the figure, reference numeral 1 denotes a substantially cubic-shaped relay box for drawing out conductive wires made of galvanized steel plate or the like, which is applied to the present invention, and has an open top. A collar edge 2 that projects outward is formed on the upper edge of the four peripheries. The relay box 1 is attached to the lower surface of a rectangular frame-shaped support bar 4 that is aligned with the four peripheral edges of the flange 2.

The support beam 4 is made of extruded hard aluminum material, and as shown in an enlarged view in FIG. It consists of a continuous holding groove piece 7, and is connected to the drawer relay box 1 by screwing a bolt embedded in the fitting groove 5 into the flange 2. The holding groove piece 7
is relay box 1 on deck plate z, which will be described later.
When the frame is not temporarily supported, it is used to temporarily hold it by inserting an anchor welded to the reinforcing bars on the wooden frame (not shown).

Further, a cushion material 9 made of vinyl chloride is fitted into the fitting groove 5 on the upper surface, and the support portion 6 of the support bar 4 is fitted.
A lid 10 for drawing out conductive wires is placed on top.

The lid 10 includes a rectangular frame 11 made of aluminum, and a main floor material 12 made of galvanized steel plate, etc., and a floor finishing material 13 made of decorative board made of synthetic resin, wooden board, etc.
It is constructed by supporting in a layered manner. Further, as is clear from FIGS. 2 and 3, the lid 10 has an ejection hole 15 formed in the center of two adjacent edges, which communicates the inside of the relay box 1 with the outside, and an opening 17 on the outer surface. is formed and is shielded by a line protector 16 on a frame body with an inclined back surface. A shielding film 18 made of synthetic rubber or the like is fitted into the opening 17 of the line protector 16, and when a conductive wire 1 (described later) is to be drawn out, the shielding film 18 is broken and can be taken out.

Further, insertion holes 21 are bored in required side surfaces among the four circumferential side surfaces 20 of the relay box 1. As described later, a short tubular socket 22 for threadingly connecting a wiring pipe 30 connecting each relay box 1 is inserted and fixed in the left-right direction into the insertion hole 21.

The construction procedure for the relay box 1 will be explained.

First, the relay box 1 is temporarily held at a desired position so that the conductive wire 1 can be drawn out from the desired position on the floor surface. and socket 2 of each relay box 1
Connect the wiring pipe 30 to 2. The raceway 30 is appropriately connected to another raceway 30 by a connecting member 31. Thus, the interiors of each relay box 1 communicate with each other via the wiring pipe 30. Therefore, by passing the conductive wire 1 through the wiring pipe 30 and each relay box 1, it is possible to form a network as shown in FIG.

After completing such wiring, slab concrete is poured to form a slab concrete floor x around the relay box 1 and the wiring pipe 30. Then, if desired, for example, a decorative board y, which is the same as the floor finishing material 13, is pasted on the slab concrete floor x, and its surface becomes the floor f. Due to this construction, only the lid 10 is exposed on the floor f. Therefore, the shielding film 18 is broken and the required conductive wire l is drawn out from the opening 17 of the line protector 16.
It will be connected to electrical equipment on the floor f.

Incidentally, the construction of the first floor and the second and higher floors differs slightly in points other than the general construction described above.

In other words, if the building is on the second floor or higher, construction is carried out as shown in Figure 1.

Here, a locking plate 25 is provided around the circumferential surface of the relay box 1 as shown in FIGS. 1 and 2, and around this locking plate 25, level adjustment bolts 27 are inserted into a plurality of elongated holes 26. The height of the bolt 27 is determined using nuts placed above and below the elongated hole 26.

Then, a hole through which the lower part of the relay box 1 can be inserted is formed in the deck plate z arranged on the ceiling plate 35, the lower part of the relay box 1 is passed through the hole, and the insertion hole 21 is inserted into the deck plate z. position the lower end of the bolt 27 on the deck plate z.
Lock on top. Thereafter, slab concrete is poured onto the deck plate z to form a slab concrete floor x. In such a configuration,
The wiring pipe 30 runs between the ceiling plate 35 and the deck plate z.

Here, the deck plate z of the relay box 1
Fireproof panels 32a and 32b made of calcium silicate or the like are joined to the lower four peripheral surfaces and the bottom surface, respectively. Further, a fireproof covering tube 32c made of calcium silicate is also applied around the wiring pipe 30. The fireproof covering tube 32c is fitted inside the fireproof panel 32a and connected with an adhesive. Furthermore, in order to further improve fireproof performance, the fireproof panels 32a, 3
2b and the lower peripheral surface of the relay box 1, and between the fireproof coating 32c and the wiring pipe 30, ceramic fibers 33 are deposited. The fireproof panels 32a and 32b are supported by a support frame 34 fitted around the fireproof panels 32a and 32b screwed to a peripheral frame 35 joined to the lower surface of the locking plate 25.

When constructing the first floor, a slab concrete floor x will be formed on the foundation, and the wiring pipes 30 will be buried within the slab concrete floor x.

<Effects of the Invention> The present invention embeds a relay box for drawing out conductive wires in a slab concrete floor, and below the floor surface,
Each relay box is connected by a wiring pipe in which a conductive wire 1 runs, and the conductive wire 1 of each box is connected to a required electric device. For this reason,
Since the relay box can be directly buried in the slab concrete floor and there is no need to raise the floor f, there is no need to reduce the actual height of each room. Further, only the lid 10 of the relay box 1 is exposed on the floor f, which has an excellent effect such that the floor f becomes beautiful.

[Brief explanation of drawings]

Figure 1 is a vertical cross-sectional side view of the construction state of the present invention, Figure 2 is
3 is an enlarged longitudinal sectional side view of the lid 10, etc., and FIG. 4 is a plan view showing an example of wiring according to the present invention. 5 and 6 show a conventional structure using wiring pits a, with FIG. 5 being a plan view and FIG. 6 being a longitudinal sectional side view. Further, FIG. 7 is a longitudinal sectional side view showing another conventional structure having a floating floor structure. 1; relay box, 16; line protector, 17; opening, 18; shielding membrane, 21; insertion hole,
30; Raceway, x; Slab concrete floor, y;
floor surface.

Claims (1)

[Claims] 1. A relay box with a cover for drawing out conductive wires is buried in the slab concrete floor, and a wiring pipe is used to connect each relay box under the floor surface, and the conductive wire running inside the wiring pipe is connected to the relay box. 1. A structure for drawing out conductive wires, characterized in that the structure can be taken out as appropriate from a lid of a conductive wire.