JPH03230713A - Electric wiring box for cellular deck - Google Patents

Abstract

PURPOSE:To easily mount an electric wiring box for cellular deck by inserting a height adjusting frame the top face of which is provided with an outlet opening and wiring openings to a gap provided between an outer frame of tubular type consisting of 4 side plates and an inner frame nested into the outer frame, and adjusting the height. CONSTITUTION:An inner frame 11 consisting of 4 side plates 5 and 2 top horizontal plates 6, is inserted into a tubular type outer frame 1 consisting of 4 side plates 2, with a gap provided in between. The frames 1 and 11 are provided with the bottom plates 4 and 8 having openings 3 and 7 for wiring. A height adjusting frame 18 provided with a top plate 17 having openings for wiring 16 and 16', and an opening for an outlet 15 is inserted into the above-mentioned gap, and a height is decided in accordance with the thickness of a concrete by using a height adjusting bolt 22 and a bolt 23 for preventing from lifting. Covers 27, 28 and 28' is fitted into openings, and a box 13 is covered with a cover 29 and positioned on a deck plate 24, and, then, concreted. This enables reduction of chipping quantity of concrete over the box 13 during wiring and the box to be for general use.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention provides a method for connecting wiring from inside the wiring cells to the floor in a cellular deck for configuring a floor system that can accommodate the automation of intelligent buildings and new office buildings. Concerning an electrical wiring box for drawing out electrical wiring.

(Prior art) As a conventional electrical wiring box for the above purpose, the
No. 4-28590 discloses a deck plate fixed across the top surfaces of adjacent peaks, JP-A-59-1.
0E! No. 853 discloses a device in which a lid member is used to form a cell on the wide valley of a deck plate, and the cell is placed on top of the lid member.
In Japanese Patent Application Laid-open No. 63-209417, a low peak is provided between the two peaks of the deck plate, three cells are formed between the two peaks of the deck plate, and the low peak in the middle is formed between the two peaks of the deck plate. It is shown that it is fixed using the sloping parts of the top and the ridges on both sides.

(Problem to be Solved by the Invention) By the way, after installing a large number of electrical wiring boxes at predetermined locations on the deck plate, concrete is poured to construct the floor, and after the concrete hardens, electrical wiring is installed at the required locations. You can remove the concrete from the top of the wiring box to expose the box and install an outlet box.
Although it is used by wiring, the thickness of the floor concrete is not always constant in the constructed floor structure. However, all of the above-mentioned conventionally known electrical wiring boxes have a fixed height, and cannot be adjusted according to the thickness of the concrete floor.

Therefore, unless electrical wiring boxes of several different heights were prepared, if the concrete floor was too thick, a large amount of concrete would be needed and construction would be time-consuming.

Therefore, in the past, it was necessary to prepare electrical wiring boxes of several different heights depending on the thickness of the concrete floor.

Therefore, the present invention aims to provide an electrical distribution box for cellular decking whose height can be arbitrarily adjusted according to the thickness of the floor concrete to be poured.

(Means for Solving the Problems) In order to solve the above problems, the electrical wiring box for cellular decks of the present invention has a cylindrical rectangular outer frame that has four side plates, and four side plates and a side plate. A cylindrical rectangular inner frame body having at least two upper horizontal plates projecting inward from the upper end is inserted with a slight gap between the side plates, and the outer frame body and the inner frame body A bottom plate is provided on one or both of the boxes, and an opening serving as a passage for electrical wiring is provided at the bottom or lower part of the side plate of the box to which both frames are fixed at the bottom.
A side plate of a cylindrical rectangular height adjustment frame consisting of four side plates and a top plate having an outlet opening is fitted into the gap between the outer frame and the inner frame on the side of the box. Bolt insertion holes are provided in the top plate of the cover adjustment frame and the top horizontal plate of the inner frame of the box, and bolts are screwed through the holes.

(Function) The electrical distribution box for cellular decking of the present invention configured as described above is placed and fixed across the adjacent peaks of the deck plate, and is placed on the deck plate according to the thickness of the floor concrete. Then turn the bolts inserted into the bolt holes provided on the two sides of the height adjustment frame and the top horizontal plate of the inner frame of the box to raise or lower the height adjustment frame to the desired height. Adjust to. After that, floor concrete is poured, and after the concrete hardens, the concrete on the electrical wiring box is peeled off to attach outlets, etc., so the amount of concrete to be removed on the electrical wiring box is reduced, improving construction efficiency.

(Embodiment) An embodiment of the electrical wiring box for cellular decking according to the present invention will be described with reference to FIGS. 1 and 2. In Figure 1,
1 is a cylindrical rectangular outer frame body having four side plates 2 and a bottom plate 4 in which three openings 3 serving as electrical wiring passages are arranged and drilled at equal intervals; It has two upper horizontal plates 6 which are bent inward at right angles and protrude from the upper ends of the side plate 5 and left and right side plates 5, and whose both ends are bent and locked to the front and rear side plates, and an electrical wiring passageway is provided at the lower end. It has a bottom plate 8 in which three open lowers are arranged and bored at equal intervals, and the interior is
A cylindrical rectangular inner frame 11 having a partition plate 9 divided into chambers and a Funcent mounting bracket 10 has a slight gap 12 between the side plates 2 and 5 as shown in FIG. The box 13 is formed by fixing the bottom plates 4 and 8 by spot welding. The side plate 14 of the cylindrical rectangular height adjustment frame 18 consisting of the board/- and the top plate 17 having wiring openings 16 and 16' is fitted as shown in FIGS. Bolt height adjustment holes 19 are located on both left and right sides of the top plate 17 of the height adjustment frame 18. Female threaded bolt holes 21 and 21' are provided in the bolt insertion hole 20 and the upper horizontal plate 6 of the inner frame 11 of the box 13. A bolt 22 having a cross-shaped recess in the head is screwed into the female threaded bolt hole 21, and the crystallinity adjustment frame 18 is placed on the head as shown in FIG. By rotating the bolt 22 through the adjustment hole 19, the height of the height adjustment frame is adjusted. The bolt 23 is inserted into the bolt insertion hole 2 so that the height adjustment frame does not come up from the box 13.
0. This is for fixing by screwing into the female threaded bolt hole 21'.

The electrical wiring box for cellular decking according to the embodiment configured as described above is placed across the adjacent peaks 25 of the decking plate 24 as shown in FIG. After fixing via the deck plate 26, when placing floor concrete on the deck plate 24, depending on the thickness of the floor concrete to be placed,
Height adjustment bolts 22 and lifting prevention bolts 23 attached to the left and right ends of the top plate of the crow adjustment frame 18 and the top horizontal plate 6 of the inner frame 11 of the box 13
Turn to raise or lower the height adjustment frame 18 and adjust it to the desired height.

Then, the lid 27. shown in FIG. 28.28'' and close it, and then cover the crystallinity adjustment frame 18 with a vinyl cover 29 shown in FIG. Instead of the cover 29, it may be closed with adhesive tape or the like.

After doing this, floor concrete 30 is placed on the deck plate 24 as shown by the chain line in FIG. Expose and cover 2
7. Remove 28 and 28' as necessary, attach the outlet 33 to the outlet opening 15 of the height adjustment frame 18, and wire the wiring to the wiring openings 1B and 1f3'.

Therefore, the amount of concrete 30 to be removed on the electrical wiring box is reduced, and construction efficiency is improved.

The electrical wiring box of the above embodiment has bottom plates 4 and 8 on both the outer frame body 1 and the inner frame body 11, and openings 3.7 that serve as electrical wiring passages in each of the bottom plates 4 and 8. However, as shown in FIG. 5, only the outer frame 1 has a bottom plate 4.
The inner frame 11 may simply be provided with horizontal plates 31 on the bottom surface of both left and right ends in order to be fixed to the bottom plate 4 of the outer frame l. Alternatively, as shown in FIG. 6, only the inner frame 11 has the bottom plate 8, and the outer frame 1 only has horizontal plates 32 on the left and right end bottom surfaces in order to fix the bottom plate 8 of the inner frame 11. good. Furthermore, the side plates of the box 13, that is, the side plates 2 and 5 of the outer frame 1 and the inner frame 11, are inclined inward from the middle at the bottom as shown in FIG. 7 may be provided on the bottom plate 4.8 and on the inclined side plates 2' and 5'.

Further, in the above embodiment, the height adjustment frame 18 and the inner frame body 11 are connected to each other by a height adjustment bolt 22 and a lifting prevention bolt 2.
3, but it is also possible to form threaded holes in opposite directions in the height adjustment frame and the inner frame body so that one bolt can be used to both adjust the height and prevent lifting. .

(Effects of the Invention) As can be seen from the above explanation, the electrical wiring box for cellular decks of the present invention, after being placed and fixed on the deck plate,
Depending on the thickness of the floor concrete to be poured on the deck plate, the height adjustment frame can be moved up and down to adjust the required height. The amount of concrete removed from the wiring box is reduced, improving construction efficiency.

[Brief explanation of drawings]

Fig. 1 is an exploded perspective view of an embodiment of the electrical distribution box for cellular decking described herein, Fig. 2 is an assembled longitudinal sectional view thereof,
Figure 3 is a sectional view taken along the line A-A in Figure 2, and Figure 4 is a longitudinal sectional view showing the electrical wiring box placed and fixed on a deck plate and the height of pouring floor concrete adjusted. ,
5 to 7 are longitudinal sectional views showing other embodiments of the electrical wiring box of the present invention. DESCRIPTION OF SYMBOLS 1... Outer frame body, 2... Side plate, 3... Opening, 4...
...Bottom plate, 5 side plate, 6...Top horizontal plate, 7...Opening, 8...Bottom plate, 11...Inner frame, 12...Gap, 13...Box, 14...Side plate , 15... Outlet opening, 16.16'... Wiring opening, 17
...Top plate, 18...Height adjustment frame, 19. ...Bolt adjustment hole 20...Bolt insertion hole, 21.21'...
・Female threaded bolt hole, 22...Height adjustment bolt, 2
3... Bolt for lifting prevention, 24... Decking plate, 30... Floor concrete.

Claims (1)

[Claims] 1) A cylindrical rectangular outer frame body having four side plates, and a cylindrical rectangular inner frame body having four side plates and at least two upper horizontal plates protruding inward from the upper ends of the side plates, which are attached to each other. The bottom or side plate of a box that is loaded with a slight gap between the side plates of the box, has a bottom plate on one or both of the outer frame body and the inner frame body, and both of these frame bodies are fixed at the bottom. An opening is provided in the lower part to serve as a passage for electrical wiring, and the box consists of four side plates and a top plate with an outlet opening formed in the gap between the outer frame and the inner frame on the side of the box. A cellular deck in which the side plate of a cylindrical rectangular height adjustment frame is fitted, bolt insertion holes are provided in the top plate of the height adjustment frame and the top horizontal plate of the inner frame of the box, and the bolts are screwed through. electrical wiring box.