JPH0329953Y2 - - Google Patents

Description

[Detailed explanation of the invention] A. Purpose of the invention (1) Industrial application field This invention is a wiring device, in particular, a wiring pit in which electric wires are laid in a wiring pit provided on the floor, and a pit cover is placed in the upper opening of the wiring pit. The present invention relates to a wiring device which is provided to be openable and closable, and in which the electric wire or a branch line branching from the electric wire is drawn out from inside the wiring pit through the pit lid.

(2) Prior Art Conventionally, in the above-mentioned type of wiring device, as shown in Japanese Utility Model Publication No. 18988/1988, grooves for forming wire holes into which the electric wires etc. are inserted are made of synthetic resin. It was installed directly on the top of the manufactured pit lid.

(3) Problems that the invention aims to solve In the conventional device described above, once a wire passage hole is drilled in the groove of the pit lid and an electric wire etc. is passed through it,
When inspecting or cleaning the inside of the wiring pit by opening the pit lid, it is difficult to carry out the work because wires, etc., remain passed through the relatively large pit lid, and in some cases, the wires, etc. It is troublesome as it is necessary to disconnect the wires. Furthermore, if the wiring of the electric wires, etc. is changed due to circumstances and the number of drawers from the pit lid is reduced, it is necessary to warp and replace the relatively large and expensive pit lid with another one, which is difficult to deal with. There is a problem that it is troublesome and increases hist.

An object of the present invention is to provide a wiring device that can solve all the problems of the conventional devices.

B. Structure of the device (1) Means for solving the problems In order to achieve the above object, the present invention provides a wiring device of the type described above, in which the pit lid has a side opening that opens at the outer edge of the lid. forming a wire passage opening that vertically penetrates the lid, and at least one of the inner surfaces of the wire passage opening facing each other with the side opening in between is provided with the side opening. A synthetic resin cover piece capable of closing the wire passage port is integrally provided with a protruding wall that narrows the opening, and a lid piece made of synthetic resin capable of closing the wire passage port is removably fitted into the wire passage port from above to form the side opening of the wire passage port. The lid piece is divided into a first lid part that can close a portion including the wiring opening, and a second lid part that is attached to the wire opening and closes the remaining part of the wiring opening. A recessed portion for forming a wire passage hole into which the electric wire or branch wire is inserted is formed so as to span the first and second portions.

(2) Effect With the above configuration, if the recess for drilling a wire hole is used as a drill hole, the wire wire hole can be easily drilled at an appropriate position of the synthetic resin cover piece. Moreover, when the electric wire etc. is passed through the drilled wire passage hole, the first part of the resin lid piece is
By simply removing the lid and pulling out the wires, etc. from inside the wire opening through the side opening, the pit lid can be completely separated from the wires, etc., and can be relatively unobstructed by the wires. Since the large pit lid can be opened wide, inspection and cleaning inside the wiring pit can be performed quickly and easily while the electric wires, etc. remain connected as usual.
In addition, if the wiring of the electric wires etc. is changed due to circumstances and the number of drawers drawn out from the pit lid is increased or decreased, additional wiring holes may be bored in the lid piece, or the lid piece may be modified to accommodate the circumstances. The relatively large and expensive pit lid can be used as is.

In addition, since the first lid part is removably fitted into the wiring port from above, the second lid part can be attached to the wiring port and the pit cover can be left in the upper opening of the wiring pit. , the first lid part can be easily fitted into the fixed position of the wire passage hole from above, or easily taken out from the fixed position above, and especially when the first cover part is fitted, the wire passage hole half part of the second cover part By simply lowering the first lid part while applying half of the wire passage hole of the first lid part to the upper pull-out part of the electric wire etc. fitted to the upper part, the electric wire etc. It is possible to accurately hold an electric wire or the like between the wire passage hole halves of both lid parts without causing the outer peripheral part to get caught. In addition, at least one of the opposing inner surfaces of the wiring port with the side opening in between is integrally provided with a protruding wall that narrows the side opening, so that the pit cover can be easily connected to the wiring. When the first lid is separated from the upper opening of the pit, the projecting wall can reliably prevent the first lid from moving laterally away from the wire passage port through its side opening, and therefore Even in the separated state of the pit lid, simply fitting the first lid into the wire passageway will reliably prevent the opposing edges of both lids from separating from each other, and the electric wires, etc. can be accurately connected between them. It can be held between.

(3) Embodiment Hereinafter, an embodiment of the present invention will be described with reference to the drawings. In FIG. 1, reference numeral 1 indicates a concrete floor of a building, and a floor finishing material 2 such as vinyl tile is adhered to the surface of the concrete floor. Further, a wiring pit 3 is provided on the floor 1, and the wiring pit 3 has a U-shaped groove 4 formed in the floor 1, and a frame 5 embedded in the floor 1 along the upper edges of both sides. , a plurality of metal pit lids 7 that are removably fitted into the stepped portions 6 of the frame body 5, and a separator 8 that bisects the inside of the groove portion 4 in the longitudinal direction thereof. A predetermined number of electric wires W ₁ to W ₄ are laid in the electric lines ₁ and ₂ separated by the separator 8, respectively.

The pit lid 7 is formed with two wire passage ports 9 having side openings 13 opening at the outer edge of the lid 7 and passing through the lid 7 in the vertical direction. Frames 11 that frame the inner periphery of these wire ports 9 are integrally fitted, and the frames 11 of each wire port 9 face each other with the side opening 13 interposed therebetween. The frame body 11 is formed into a substantially C-shape with the opening facing outward so that a pair of protruding walls 20, 20 narrowing the side opening 13 from both inner surfaces are formed. A synthetic resin lid piece 10 that closes the wire opening 9 is comprised of first and second lid parts 10 ₁ and 10 ₂ that are fitted into the frame 11 and fixed in half with screws 12, respectively. Since the first lid part 10 ₁ is fitted into the side opening 13 side of the wiring port 9, it is formed into a convex planar shape to close the opening 13 as well, and the second lid part 10 ₂ Since it is fitted into the inner part of the wire opening 9, it is formed into a rectangular plane. Further, on the upper surface of the lid piece 10, both the lid parts 1
0 ₁ and 10 ₂ , at least one (in the illustrated example, four) recesses 14 for forming a wire passage hole are formed independently from each other. Since these recesses 14 normally do not pass through the lid piece 10, the wire passage port 9 is closed by the lid piece 10.

For example, when connecting the electric wire W ₁ and the branch line B ₁ , drill the branch line B ₁ into one recess 14.
Drill a wire hole 15 with a slightly larger diameter, remove the pit lid 7, and insert the lid piece 10 from the pit lid 7.
Remove the first lid part ₁₀₁ . Then, the plug 17 of the branch wire B 1 is inserted into the outlet ₁₆ installed in the middle of the electric wire W ₁ .
The branch wire B ₁ is passed through the half-open wire passage port 9 through its side opening 13, and then the opening of the groove 4 is closed with the pit lid 7. After that, fit the first lid part ₁₀₁ into the wire opening 9, and
If B ₁ is held between the halves of the wire passage holes 15 formed at the opposing edges of both lids 10 ₁ and 10 ₂ , the branch line B ₁
is inserted into the wire passage hole 15, thereby preventing the branch wire _B1 from rubbing against the wire passage port 9, and also preventing dirt from entering into the groove portion 4 from the wire passage port 9. The other end of the branch line _B1 is connected to an electronic or electrical device Ea such as a computer, for example. Connections between other electric wires W ₂ and branch wires B ₂ are made in the same manner.

Note that the electric wires W ₁ to _{W 4} may be drawn out directly from the wire passage holes 15 in some cases.

C. Effects of the invention As described above, according to the invention, an electric wire is laid in a wiring pit provided on the floor, a pit cover is provided in the upper opening of the wiring pit so that it can be opened and closed, and the electric wire or In the wiring device, in which a branch line branching from the electric wire can be pulled out from inside the wiring pit, the pit lid has a side opening that opens at an outer edge of the lid and passes through the lid vertically. A portion that includes the side opening of the wire entry port and is removably fitted into the wire entry port from above with a synthetic resin lid piece capable of closing the wire entry port. It is divided into a first lid part that can close the wire passage port, and a second lid part that is attached to the wire passage port and closes the remaining part of the wire passage hole. Alternatively, since a recess for drilling a wire passage hole into which a branch line is inserted is formed across the first and second parts, the recess for drilling a wire passage hole is used as a drill hole. A wire passage hole can be easily drilled at a predetermined position on the upper surface of the lid piece spanning the first and second lid parts, which is originally difficult to drill. Moreover, when the electric wire, etc. is passed through the drilled wire passage hole, the electric wire, etc. can be accurately held between the first and second lid parts, and the resin The pit cover can be completely separated from the electric wires by simply removing the first lid part of the lid piece and pulling the electric wires, etc. out from inside the wire opening through the side opening, so there is no interference with the electric wires, etc. The comparatively large pit cover can be opened wide without being closed, and work such as inspection and cleaning inside the wiring pit can be quickly and easily carried out with the electric wires etc. remaining connected as usual. In addition, if the wiring of the electric wires etc. is changed due to circumstances and the number of drawers drawn out from the pit lid is increased or decreased, additional wiring holes may be bored in the lid piece, or the lid piece may be modified to accommodate the circumstances. The pit lid, which is relatively large and expensive, can be used as is, so it is easy to handle and costs can be kept low.

In addition, since the first lid part is removably fitted into the wiring port from above, the second lid part can be attached to the wiring port and the pit cover can be left in the upper opening of the wiring pit. , the first lid part can be easily fitted into the fixed position of the wire passage hole from above, or easily taken out from the fixed position above, and especially when the first cover part is fitted, the wire passage hole half part of the second cover part By simply lowering the first lid part while applying half of the wire passage hole of the first lid part to the upper pull-out part of the electric wire etc. fitted to the upper part, the electric wire etc. It is possible to accurately hold an electric wire or the like between the wire passage hole halves of both lid parts without causing the outer peripheral part to get caught. In addition, at least one of the opposing inner surfaces of the wiring port with the side opening in between is integrally provided with a protruding wall that narrows the side opening, so that the pit cover can be easily connected to the wiring. When the first lid is separated from the upper opening of the pit, the projecting wall can reliably prevent the first lid from moving laterally away from the wire passage port through its side opening, and therefore As the means for fixing the first lid to the wire opening, it is possible to use a means with a simple structure and relatively low strength that only restricts the vertical movement of the first lid. Even in the above-mentioned separated state, simply by fitting the first cover part into the wire passage port, the opposing edges of both cover parts are reliably prevented from separating from each other by the above-mentioned projecting wall, so that electric wires, etc. can be accurately connected between them. Can be held. Furthermore, since the first lid part is fitted into and removed from the wiring port from above, there is no possibility that the special provision of the projecting wall will interfere with the operation of attaching and detaching the first lid part.

Furthermore, since the lid piece is made of synthetic resin,
Not only is it easy to drill the wire holes, but it also has good compatibility with the insulation coating of electric wires, etc., so even if the insulation coating is rubbed strongly, damage to the insulation coating can be kept to a minimum, and the pit cover itself is Since it can be made of a different material from the synthetic resin lid piece, it is possible to select an appropriate material in accordance with the original function of the pit lid.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention; FIG. 1 is an overall perspective view, and FIG. 2 is a partially enlarged perspective view. W ₁ ~ W ₄ ... Electric wire, B ₁ , B ₂ ... Branch line, 1...
...floor, 3...wiring pit, 7...pit lid, 9...
... Wiring port, 10 ... Lid piece, 10 ₁ ... First lid part,
10 ₂ ... second lid part, 13 ... side opening, 14
... Recess for drilling a wire hole, 15... Wire hole.

Claims (1)

[Scope of utility model registration request] Electric wires W ₁ to _{W 4} are laid in a wiring pit 3 provided on the floor 1, a pit lid 7 is provided at the upper opening of the wiring pit 3 so as to be openable and closable, and the electric wires W ₁ to W ₄ are passed through the pit lid 7. Alternatively, in a wiring device in which branch lines B ₁ and B ₂ branched from the electric wires W ₁ to _{W 4} can be drawn out from inside the wiring pit 3, the pit lid 7 has an opening at the outer edge of the lid 7. A wire passage port 9 having a side opening 13 and vertically penetrating the lid 7 is formed, and both inner surfaces of the wire passage port 9 face each other with the side opening 13 in between. A projecting wall 20 that narrows the side opening 13 is integrally provided on at least one of the side openings 13, and a synthetic resin lid piece 10 capable of closing the wire passage port 9 can be attached to and removed from the wire passage port 9 from above. a first lid portion 10 ₁ that can be fitted into and close a portion of the wire passage port 9 including the side opening 13;
A second lid part 10 ₂ is attached to the wire opening 9 and closes the remaining part of the wire opening 9, and
Further, on the upper surface of the lid piece 10, the electric wires W ₁ to
A recess 14 for forming a wire passage hole 15 into which W ₄ or branch wires B ₁ and B ₂ are inserted is formed to span the first and second lid portions 10 ₁ and 10 ₂ . Wiring equipment.