JPH0785431B2 - Connection box - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial application] The present invention connects a power cable and a communication cable laid inside a building body such as a building floor to an OA (office automation) device such as a computer. Connection box to do.

[Prior Art and its Problems] Conventionally, as shown in FIG. 13, a conduit tube P is embedded in a slab S, a connection box B is arranged and embedded at an appropriate position of the slab S, and the connection box is formed when necessary. The power supply line was pulled out from the outlet C provided in B.

Normally, when designing or renovating a new building,
Usually, the layout of OA equipment has not been decided yet, and outlets, communication lines, outlets, etc. for OA equipment are all arranged according to a certain standard. At the time of use, the wiring molding was exposed on the floor finish surface between the outlet etc. and the OA equipment etc.

In this case, if outlets and the like are densely arranged at various places in the slab, there is an advantage that the wiring molding can be made as short as possible for all the arrangements of the OA equipment, but there is a disadvantage that the cost is high. Therefore, the number of connection boxes should be reduced as much as possible, and more than one connection box should be used.
It is desirable to be able to pull out the wiring mall in any direction so that it can handle OA equipment.

On the other hand, in recent years, especially in office buildings, from the viewpoint of improving the office environment and improving the corporate image, it is often the case that floor coverings are refurbished into carpets, in which case a flat connection line is required to promote the free placement of OA equipment. Cables have come into wide use.

However, as shown in FIG. 13 above, the conventional connection box has a problem in that it is difficult to connect the flat cable, and a dedicated connection box must be installed.

[Object of the Invention] The present invention has been made in order to solve the above-mentioned conventional problems, and an object of the present invention is to draw out a flat cable and to draw a connecting line from an electric wire conduit independently or simultaneously. To provide a connection box that is possible.

[Structure of the Invention] The connection box of the present invention includes a box body that is embedded and fixed in a body such as a concrete slab of a building, and a cover that is attached to the box body and has an outlet inside the top plate. In a connection box for connecting a power supply cable and a communication cable inside the body, a notch is formed in the upper edge of the side plate of the box body, and the upper end of the side plate of the cover plate is formed. A slit is formed in the portion, the cover plate is attached to the box body, the slit and the cutout portion are aligned with each other, and the outlet for the flat cable laid on the body surface is opened. It is characterized by having done.

Further, the box body and the cover plate are formed in a square shape, the notch and the slit are formed in a pair of side plates facing each other, and the cover plate is selectively rotated to be attached to the box body. Thus, the above-mentioned outlet can be selectively opened.

Further, the box body and the cover plate are formed in a circular shape, and the ring body is rotatably fitted to the upper end edge of the side plate of the box body, and the notch portions at predetermined intervals are formed on the upper end edge of the ring body. And forming slits at predetermined intervals on the upper end of the side plate of the cover plate, and selectively rotating the cover plate or the ring body to selectively open the drawer port. It is characterized by that.

[Embodiment] An embodiment of the connection box of the present invention will be described below with reference to the drawings.

In FIG. 1, reference numeral 1 denotes a box body, mainly a bottom plate.
It is composed of 1a and a side plate 1b. In this embodiment, the bottom plate 1a is formed in a square shape, and the four side plates 1b have the same length (width).

The side plate 1b is provided with a knockout part 1c which can be easily punched to connect a pipe P for a power supply line or a communication line, and a cutout part is provided at an upper edge of a pair of facing side plates 1b. 1d is formed.

Reference numeral 2 denotes a cover plate, which is mainly composed of a top plate 2a and a side plate 2a having a short length, and by fitting the side plate 2b to the outside of the side plate 1b of the box body 1, the box body 1 is covered. I am supposed to wear it.

On the top plate 2a of the cover plate 2, a floor outlet 3 such as a vertical movement type outlet is attached. Also,
A slit 2c is formed at the upper end of the pair of side plates 2b facing each other.

Reference numeral 4 denotes a support fitting, which can adjust the tightening position of the screw 5 along the long hole 4a to adjust the mounting height position of the box body 1.

At the four corners of the box body 1, as shown in FIG.
A mounting seat 7 for screwing the vertical adjustment screw 6 is provided. A flange portion 6a is formed at an intermediate portion of the vertical adjustment screw 6 so as to receive the cover plate 2 set on the upper portion of the vertical adjustment screw 6. Also,
A screw hole 6b is formed at the top of the vertical adjustment screw 6 so that the set cover plate 2 can be tightened and fixed by a screw 8. As is clear from FIG. 3, the top and bottom of the vertical adjustment screw 6 have a slit groove 6c.
Is formed, and the set height position of the cover plate 2 can be adjusted by inserting a minus driver and rotating the vertical adjustment screw 6.

Since the connection box of this embodiment is configured as described above, when only the floor outlet 3 is used,
As shown in FIG. 4, the slit 2c of the cover plate 2 is located on the side of the side plate 1b where the notch portion 1d of the box body 1 is not present, and the slit 2c is made blind by the upper edge of the side plate 1b. Prevent dust and the like from entering the inside of 1.

If you want to use the flat cable F together,
As shown in the figure, the cutout portion 1d of the box body 1 and the slit 2c of the cover plate 2 are matched to each other to open an outlet, and the flat cable F is led out from this, for example, the lower side of the carpet laid on the slab. Can be wired to.

It is necessary to adjust the height position of the cover plate 2 up and down by laying a carpet on the slab, but since the box body 1 is embedded and fixed in the concrete slab, It is necessary to adjust the cover plate 2 up and down.

In the connection box of this embodiment, screws 8 are attached to the vertical adjustment screw 6.
Before fixing the cover plate 2 by screwing it in, insert a flat-blade screwdriver D into the slot 6c as shown in FIG. 5, and adjust the adjusting screw 6 up and down to adjust the cover plate 2
Adjust the height position of.

FIG. 6 shows another embodiment of the connection box of the present invention, in which the box body 9 and the cover plate 10 are formed in a circular shape so that they can be freely rotated. Further, the ring member 11 is rotatably fitted to the upper edge of the side plate 9a of the box body 9 (see FIG. 7), and the position of the notch 11a formed in the ring member 11 can be set in any direction. Is done.

Therefore, the slit 10a is opened in the cover plate 10 so as to correspond to the cutout portion 11a of the ring member 11, and the ring member 11 and the cover plate 10 are arbitrarily rotated, whereby the flat cable F can be freely moved. It is possible to open the outlet of the flat cable F and to make the slit 10a in a blind state when the flat cable F is not used.

The ring member 11 of this embodiment may be exchangeable with one having a different cutout 11a. Further, the cover plate 10 may be combined so that it can be replaced as a unit.

FIGS. 8 to 10 show a reference example of the present invention, in which an auxiliary side plate 12a 'is replaceably attached to the upper end of the side plate 12a of the box body 12 by means of screws or the like. Reference numeral 13 is a cover plate, and a skirt plate 13a is attached to the outer peripheral portion thereof with screws or the like. A notch groove 13b is formed on the side of the top plate of the cover plate 13, and a flat cable drawing outlet 15 is formed between the cover plate 13 and the opening plate 14 attached to the skirt plate 13a. There is. The flat plate may be pulled out by removing the opening plate 14.

As shown in FIG. 10, the cover plate 13 is vertically adjusted with respect to the box body 12 by an up / down adjustment screw 16 and is fixed by being fixed by a fixing screw 17.

FIG. 11 and FIG. 12 show another embodiment for adjusting the mounting height position of the box body 1, in which the support fitting 18 is composed of a fixing piece 18a and a vertical adjusting piece 18b. The vertical adjustment piece 18b is vertically adjusted by the screw 19. The fixed piece 18a has a long hole 18a 'formed therein.
The box body 1 and the vertical adjustment piece 18b are integrally connected by a screw 20 penetrating a '.

Although the connection box is embedded in the slab in the above embodiment, the present invention is not limited to this, and may be installed on a pair of walls or pillars.

Further, the connection box of the present invention is not limited to being embedded in concrete.

[Advantages of the Invention] (1) A notch is formed in the upper edge of the side plate of the box body, and a slit is formed in the upper end of the side plate of the cover plate. Since the slit and the notch are matched to each other so that the flat cable outlet that is laid on the body surface can be opened, you can reliably and safely pull out the flat cable onto the body surface without bending it.
Can be installed in a box.

(2) The box body and the cover plate are formed in a square shape or a circular shape, the cutout portions and the slits are formed at predetermined intervals, and the cover plate is selectively rotated to selectively open the drawer port. Since the flat cable is not installed, it is possible to prevent dust and the like from entering the box body when the flat cable is not installed.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of a connection box of the present invention, FIG. 2 is a partial cross-sectional view thereof, FIG. 3 is a perspective view of a vertical adjusting screw, and FIG. 4 is a cover when only a floor outlet is used. FIG. 5 is a perspective view showing a set state of the plates, FIG. 5 is an explanatory view showing height adjustment of the cover plate by the vertical adjusting screws, FIG. 6 is a perspective view of another embodiment, FIG. 7 is a partial sectional view thereof, 8 is a partially cutaway plan view showing a reference example, FIG. 9 is a sectional view taken along line AA of FIG. 8, and FIG. 10 is a sectional view taken along line BB of FIG. , FIG. 11 is a side view showing another example of the structure of the support fitting, FIG. 12 is its front view, and FIG.
The figure is a construction drawing of the floor outlet by the conventional slab driving electric wire pipeline. 1 …… Box body, 1a …… Bottom plate, 1b …… Side plate, 1c ……
Knockout part, 1d …… notch part, 2 …… cover plate, 2a …… top plate, 2b …… side plate, 2c …… slit, 3 ……
Floor outlet, 4 ... Supporting bracket, 4a ... Long hole, 5
...... Screw, 6 …… Vertical adjustment screw, 6a …… Flange part, 6b
...... Screw hole, 6c …… Slit groove, 7 …… Mounting seat, 8 …… Screw, 9 …… Box body, 9a …… Side plate, 10 …… Cover plate, 10a …… Slit, 11 …… Ring member , 11a ……
Notch, 12 …… Box body, 12a …… Side plate, 12a ′…
… Auxiliary side plate, 13 …… Cover plate, 13a …… Skirt plate, 13b …… Notched groove, 14 …… Opening plate, 15 …… Drawout port, 1
6 ... Vertical adjustment screw, 17 ... Fixing screw, 18 ... Supporting metal, 18a ... Fixing piece, 18a '... Long hole, 18b ... Vertical adjusting piece, 19 ... Adjusting screw, 20 ... Screw.

Continued Front Page (56) References Open 61-133980 (JP, U) Open 49-50785 (JP, U) Open 51-119583 (JP, U)

Claims (3)

[Claims] 1. A power supply cable comprising a box body which is embedded and fixed in a body such as a concrete slab of a building, and a cover plate which is attached to the box body and has an outlet inside the top plate. In the connection box for connecting the or communication cable in the body,
A notch is formed on the upper edge of the side plate of the box body, and a slit is formed on the upper end of the side plate of the cover plate, and the cover plate is attached to the box body to form the slit and the notch. A connection box, characterized in that the flat cable outlet is laid on the above-mentioned body surface so as to be opened. 2. The box body and the cover plate are formed in a square shape, the notch and the slit are formed in a pair of opposing side plates, and the cover plate is selectively rotated to cover the box body. The connection box according to claim 1, wherein the connection port is configured to be selectively opened by wearing the connection box. 3. The box main body and the cover plate are formed in a circular shape, a ring body is rotatably fitted to an upper end edge of a side plate of the box main body, and the ring body is cut at predetermined intervals. Forming a notch, forming slits at predetermined intervals on the upper end of the side plate of the cover plate,
The connection box according to claim 1, characterized in that the outlet is selectively opened by selectively rotating the cover plate or the ring body.