JPH08126172A - Floor duct equipment and method for pulling cable or tube into floor duct - Google Patents

Abstract

PURPOSE: To facilitate cable or tube laying work, and make it possible to simply check positions where duct bodies are buried in floors, and to install outlets or the like in any position. CONSTITUTION: The body 2 of a floor duct 1 is made of synthetic resin or metal material, and shaped into a rectangle cylinder so that cables, such as electric wires and signal lines, or tubes, such as conduits, can be housed therein. A pair of projected pieces 3 extending in the direction of length are formed in the center on top of the duct body 2. A crevice 4 that connects the interior of the duct body 2 and the outside is formed between the projected pieces 3. The width of the crevice 4 is smaller than the diameter of a cable or tube to be placed in the duct. A pulling tool 30 is inserted from above the slab surface into the duct through the crevice 4, and hooked on the end of a cable or tube in the duct, which is then moved by means of the tool. This makes it possible to lay cables, such as electric wires and signal lines, or tubes within a floor duct 1 buried in a floor.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a floor duct device and a floor duct for wiring or piping cables such as electric wires and signal lines and pipes such as conduits inside a floor duct embedded in a floor of a building. The present invention relates to a method for pulling a cable or a pipe into a cable.

[0002]

2. Description of the Related Art A conventional floor duct of this type is known, for example, as shown in FIG. This floor duct 20
The duct main body 19 for wiring a cable or the like is formed of a metal material in a rectangular tube shape, and a plurality of wiring outlets 17 are formed on the upper surface of the duct main body 19 at predetermined intervals. Insert stat 18 to 17
A wiring port member called is attached.

Then, as shown in FIG. 12, a cable C such as an electric wire or a signal wire is provided in the floor duct 20 having the conventional structure.
In the case of wiring, the nominal wire 21 made of a wire is inserted into the duct main body 19 from the upper opening of the junction box 12 provided at the end of the duct main body 19 or the upper opening of the insert stat 18. After pulling out from another top surface opening of the junction box 12 or the insert stat 18 and connecting the cable C to the end of this calling wire 21, by pulling back the calling wire 21, the cable C is drawn in the duct body 19 for wiring. Was doing.

[0004]

However, there have been the following problems during the wiring work of the cable to the conventional floor duct. Since the call wire 21 must be inserted and pulled back from the duct body 19, the work was troublesome. Since the upper surface openings of the junction box 12 and the insert stat 18 are located in the direction orthogonal to the extension direction of the duct body 19, it is difficult to insert and pull out the nominal wire 21, and the nominal wire 21 has an upper surface opening. However, there is a problem in that the operator needs a considerable amount of force when inserting or pulling it out. When a plurality of cables C are laid in the duct body 19, the already laid cables C hinder the insertion of the call wires 21 at the time of wiring the next cable C, which makes the work difficult. The duct body 19 is completely embedded in the floor 10, and the junction box 12 and the insert stat 18 are provided.
Since only the slab is visible on the slab surface 10a of the floor 10 at predetermined intervals through the thin concrete covering portion, it was not possible to easily confirm the embedded position of the duct body 19 in the floor 10.

The present invention has been made in view of the above circumstances, and an object thereof is to easily perform wiring or piping work for a cable or a pipe, and
An object of the present invention is to provide a floor duct in which the buried position of the duct body in the floor can be easily confirmed.

[0006]

As a means for solving the above-mentioned problems, a floor duct device according to the invention as defined in claim 1 has a "cylindrical shape which is buried in a floor and into which a cable or a pipe is inserted. A duct main body, and a floor duct having an opening groove formed in a narrow width, which includes a pair of upright pieces continuously projecting in the longitudinal direction on the upper surface of the duct main body to communicate the inside of the duct main body and the outside of the floor, An end portion is inserted through the opening groove of the floor duct to connect with the cable or pipe in the floor duct, and a retracting member for retracting the cable or pipe into the floor duct as it moves in the longitudinal direction is provided. Is characterized by.

The floor duct device according to the second aspect of the present invention is "a tubular duct main body which is embedded in the floor and into which a cable or a pipe is inserted, and which is continuous in the longitudinal direction on the upper surface of the duct main body. An opening groove formed in a narrow width for communicating the inside of the duct body and the outside of the floor with a pair of upright pieces that project
A floor duct having a lid body that is detachably provided between the upper end edges of the upright pieces so as to cover the opening groove, and an end portion of the floor duct is inserted through the opening groove of the floor duct and a cable or a pipe in the floor duct. And a retracting member for retracting the cable or pipe into the floor duct as it moves in the longitudinal direction.

Further, a method of retracting a cable or a pipe into a floor duct according to a third aspect of the present invention is that "a cable or a pipe is connected to an end portion of a retracting member and an upper surface of a duct main body embedded in a floor. A cable or pipe in the floor duct by inserting the end of the retracting member into the opening groove formed in a narrow width and having a pair of upstanding pieces continuously protruding in the longitudinal direction, and moving the cable in the longitudinal direction. It is retracted and stored.

Then, the method of pulling the cable or the pipe into the floor duct according to the invention as defined in claim 4 is, "A pair of upright pieces continuously projecting in the longitudinal direction on the upper surface of the duct main body embedded in the floor. In the opening groove formed with a narrow width,
By inserting the end portion of the retracting member, by connecting the end portion of the retracting member to the cable or pipe and moving in the longitudinal direction,
Cables or pipes are retracted into the floor duct for storage. "
It is characterized by:

[0010]

In the present invention constructed as described above, the inside of the floor 10 is arranged so that the upper edge of the standing piece 3 formed so as to project on the upper surface of the duct body 2 is located substantially at the same position as the concrete slab surface 10a. Embedded in. At this time, the lid 5 that covers the upper edge of the standing piece 3 or the opening groove 4 of the duct body 2 that is formed to project on the upper surface of the duct body 2 is the slab surface 1 of the floor 10.
0a is continuously exposed in the longitudinal direction of the duct body 2, and the embedded position of the duct body 2 in the floor can be easily confirmed.

When wiring or piping a cable such as an electric wire or a signal wire or a conduit such as a conduit into the floor duct 1 embedded in the floor 10, the duct is projected onto the upper surface of the duct main body 2 in the longitudinal direction. A pair of standing pieces 3 formed continuously
Using the opening groove 4 formed by, for example, using a pulling member such as a rope that is connected to the end of the cable or the pipe and is drawn out from inside the duct body 2 through the opening groove 4 onto the concrete slab surface 10a. A cable or a pipe is drawn from one junction box to the other junction box along the opening groove 4 so that the cable can be routed in the duct body 2. At this time, a pull-in member such as a rope can be inserted between the upright pieces 3, and therefore the pull-in operation can be performed from the outside of the floor, and the upright pieces 3 serve as a guide for guiding the pull-in member and the wiring of the cable or the pipe. Alternatively, the piping work can be easily performed.

Further, in the floor duct device according to the second aspect of the present invention, in addition to the above-mentioned operation, the lid body 5 covering the opening groove 4 formed by the standing piece 3 projecting from the upper surface of the duct body 2, It is designed to prevent the entry of concrete when pouring concrete.

[0013]

Embodiments of the present invention will be described in detail below with reference to the drawings. 1 and 2 show an embodiment of the invention according to claim 1, claim 3 and claim 4, and FIGS. 3 to 6 show an embodiment of the invention according to claim 2 to claim 4.

The duct main body 2 of the floor duct 1 is formed of a synthetic resin or a metal material into a square tubular shape, and a cable such as an electric wire or a signal wire or a pipe such as a conduit tube is inserted therein. There is. At the center of the upper surface of the duct body 2, a pair of standing pieces 3 are provided so as to be continuous in the longitudinal direction, and an opening groove 4 communicating between the inside of the duct body 2 and the outside is formed between the standing pieces 3. . As shown in FIGS. 1 and 3, when the opening groove 4 is formed in parallel with a groove width smaller than the cable or pipe diameter, the opening groove 4 gradually increases toward the upper end of the upright piece 3 as shown in FIG. There is a case where it is formed so as to be narrow, or a case where it is formed narrow in the middle of the opening groove 4, as shown in FIG. It is formed to have a small groove width. The groove width at the upper end opening of the opening groove 4 is preferably a width of several mm so that the finishing material does not sink even when a finishing material such as P tile or carpet is laid on the slab surface 10a. However, the groove width at the upper end opening of the opening groove 4 is not limited to this. Between the standing pieces 3 forming the opening groove 4, ropes or hooks 30 are provided.
(FIG. 9) or a retracting member such as the shuttle 11 (FIG. 10) can be inserted therethrough, and the standing piece 3 constitutes a guide for guiding the retracting member.

In the floor duct according to the second aspect of the invention, the upper end opening of the opening groove 4 is covered with the lid 5, and in the case of the examples shown in FIGS. It is provided between the upper edges of the upright pieces 3 so as to be removable via a thin portion 6. The entire lid 5 may be formed by the thin portion 6, or only the connecting portion of the lid 5 with the upper edge of the standing piece 3 may be formed by the thin portion 6. Further, in the case of the example shown in FIG. 5, the lid 5 is formed as a separate body and is provided so as to be removable. This lid 5 prevents the intrusion of concrete when pouring concrete.

Next, the case of embedding such a floor duct 1 in the floor of a building will be described with reference to the embodiment shown in FIG. First, as shown in FIG. 7, the duct main body 2 is installed on the floor surface 7 with the adjusting bolt 8 and the support fitting 9 adjusted to a predetermined height. Next, as shown in FIG. 8, concrete is poured on the floor surface 7 to form the floor 10. At this time, the floor duct 1 is embedded in the floor 10 so that the upper surface of the lid body 5 is positioned substantially the same as the concrete slab surface 10a. At the time of pouring this concrete, since the upper end opening of the opening groove 4 is covered by the lid 5, the opening groove 4
Concrete does not flow into the duct body 2 from the inside. In the floor duct of the invention according to claim 1, concrete is placed in the state where the duct body 2 is installed on the floor of the building, and the standing piece 3 is formed so as to project from the upper surface of the duct body 2. The floor duct 1 is embedded in the floor 10 so that the upper edge is located substantially the same as the concrete slab surface 10a. In addition, in this case, the concrete to be poured from the upper end opening of the upright piece 3 to the duct main body 2
In order to prevent intrusion into the inside, a lid 5a is detachably attached to the upper end opening of the standing piece 3 before concrete is poured.
It is good to cover with.

Next, when a cable C such as an electric wire or a signal line is to be wired in the floor duct 1 embedded in the floor 10, as shown in FIG. The lid 5 is removed from between the upper edges of the upright pieces 3 by breaking with a hammer or cutting with a knife. At this time, the lid 5
Is continuously exposed in the extension direction of the duct body 2 on the slab surface 10a of the floor 10 or is in a state where it can be seen through through a thin concrete covering portion. Can be easily confirmed, and the removal work of the lid 5 can be performed quickly.

When wiring a cable C such as an electric wire or a signal line in the floor duct 1 embedded in the floor 10, the cable C is inserted into the duct body 2 through the top opening of the junction box 12 or the like. , For example, by connecting the end of the cable C and pulling the rope drawn from the inside of the duct body 2 through the opening groove 4 onto the concrete slab surface 10a to the other junction box 12 along the opening groove 4, C can be wired in the duct body 2.

As another method for wiring the cables C such as electric wires and signal lines to the floor duct 1 embedded in the floor 10, as shown in FIG. 9, a narrow width to be inserted into the opening groove 4 is provided. Using the hook metal fitting 30 of No. 3, the tip of the hook metal fitting 30 is hooked on the end of the cable C, and the concrete slab surface 10
By operating the hook metal fitting 30 along the opening groove 4 from above a, the cable C is moved to the duct main body 2.
Can be wired inside.

Further, as another method for wiring the cables C such as electric wires and signal lines in the floor duct 1 embedded in the floor 10, as shown in FIG. The junction box 12 provided at the end of the floor duct 1 is inserted into the duct main body 2 through an upper opening or the like, and the shuttle 11 has an upper end 11a.
Are projected from the upper end opening of the opening groove 4. Floor 1 in this state
By operating the upper end portion 11a of the shuttle 11 to move to the other junction box along the opening groove 4 on the concrete slab surface 11a of 0, the cable C can be routed in the duct body 2. During the wiring work of the cable C, the upper end portion 11a of the shuttle 11 may be directly grasped and moved, but as shown in FIG. 10, the rope 13 is connected to the upper end portion 11a of the shuttle 11. The rope 13 may be used for the operation, and in this case, the operability is further improved.

In the place where the lid 5 is removed as described above, the upper end opening of the opening groove 4 is open on the slab surface 10a of the floor 10, but the groove width at the upper end opening of the opening groove 4 is the cable width. When the width is smaller than the diameter of C, without closing the upper end opening of the opening groove 4,
Even if a finishing material such as a P tile or a carpet is laid on the slab surface 10a as it is, the finishing material does not sink.

By these methods, a plurality of cables C can be easily wired in the duct body 2. In the floor duct 1 embedded in the floor 10, since the upper edge of the standing piece 3 of the duct body 2 is substantially at the same position as the floor surface 10a, the embedded position of the duct body 2 can be easily confirmed. In addition to the wiring between the junction boxes 12, an outlet or the like can be optionally provided in the middle of the duct main body 2 even after being buried so that an outlet or the like can be attached. For this reason, it is convenient that wiring and the like can be easily performed according to the installation of the equipment in the room. Even when connecting pipes such as conduits,
The same method as the wiring of the cable C can be used.

[0023]

As described above, according to the present invention,
Unlike wiring the cable by inserting and pulling the nominal wire into the conventional duct body, a retracting member such as a rope can be inserted between the standing pieces that form the opening groove,
The standing piece serves as a guide for guiding the pull-in member, and by operating from outside the floor, it is possible to wire or pipe cables such as electric wires and signal lines or pipes in the floor duct embedded in the floor. The wiring work of the cable can be performed extremely easily without hanging up.

Further, according to the present invention, the lid which covers the upper edge of the standing piece or the upper opening of the opening groove of the duct body which is formed to project on the upper surface of the duct body is the same as or more than the concrete slab surface of the floor. Since the duct body is embedded in the floor so that it is located slightly downward, the upper edge of the standing piece or the lid body is continuously exposed on the slab surface of the floor in the longitudinal direction of the duct body, or a thin concrete covering portion. A transparent state can be obtained through the, and the embedded position of the duct main body in the floor can be easily confirmed. Therefore, the wiring route of the cable can be easily determined, and the work efficiency can be improved. Further, even after being buried, an outlet or the like can be provided in the middle of the duct body so that an outlet or the like can be attached, and wiring or the like can be easily performed according to the installation of equipment in the room.

Further, in the floor duct device according to the second aspect of the present invention, since the lid body which covers the upper end opening of the standing piece formed to project on the upper surface of the duct body is provided, the concrete at the time of pouring concrete is Intrusion can be prevented in advance.

[Brief description of drawings]

FIG. 1 is a perspective view showing a state in which a floor duct in an embodiment embodying the invention according to claim 1 is embedded in a floor.

FIG. 2 is an enlarged partial cross-sectional view showing an opening groove of a floor duct in which an upper end opening is covered with a lid.

FIG. 3 is a perspective view showing a floor duct in an embodiment in which the invention according to claim 2 is embodied.

FIG. 4 is a partial side view showing an enlarged opening groove of the floor duct shown in FIG.

FIG. 5 is a partial cross-sectional view showing an enlarged opening groove of a floor duct covered by a separate lid.

FIG. 6 is a perspective view showing a floor duct in another embodiment in which the invention according to claim 2 is embodied.

FIG. 7 is a side view showing a work process when the floor duct shown in FIG. 3 is embedded in a floor.

FIG. 8 is a side view showing a work process when the floor duct shown in FIG. 3 is embedded in a floor.

FIG. 9 is a cross-sectional view showing an example of a working state in which a cable is laid in a floor duct embedded in the floor shown in FIG.

FIG. 10 is a cross-sectional view showing another example of a working state in which a cable is laid in the floor duct embedded in the floor shown in FIG.

FIG. 11 is a partial perspective view showing a conventional floor duct.

FIG. 12 is a cross-sectional view showing a work state in which a cable is wired in a conventional floor duct.

[Explanation of symbols]

 1 Floor duct 2 Duct body 3 Standing piece 4 Opening groove 5 Lid C cable

Claims (4)

[Claims] 1. A duct main body which is embedded in a floor and has a tubular duct main body into which a cable or a pipe is inserted, and a pair of standing pieces which continuously project in a longitudinal direction on an upper surface of the duct main body. A floor duct having an opening groove formed in a narrow width that communicates with the outside of the floor, and an end portion of the floor duct inserted through the opening groove of the floor duct to connect with a cable or pipe in the floor duct and move in the longitudinal direction. And a retracting member for retracting the cable or pipe into the floor duct. 2. A duct main body, which is embedded in the floor and has a tubular duct main body into which a cable or a pipe is inserted, and a pair of upstanding pieces continuously projecting in a longitudinal direction on an upper surface of the duct main body. A floor duct having an opening groove formed in a narrow width that communicates with the outside of the floor, and a lid body that is detachably provided between the upper edges of the upright pieces so as to cover the opening groove, and an end portion of the floor duct. A floor duct which is inserted through an opening groove of the duct, is connected to a cable or a pipe in the floor duct, and has a retracting member that retracts the cable or the pipe into the floor duct as the cable moves in the longitudinal direction. apparatus. 3. An opening formed in a narrow width having a pair of standing pieces that continuously project in a longitudinal direction on an upper surface of a duct main body embedded in a floor by connecting a cable or a pipe to an end portion of the retracting member. A method of retracting a cable or pipe into a floor duct, wherein the cable or pipe is retracted and accommodated in the floor duct by inserting the end portion of the retracting member into the groove and moving it in the longitudinal direction. 4. An end portion of a retracting member is inserted into an opening groove formed in a narrow width and having a pair of upright pieces continuously protruding in a longitudinal direction on an upper surface of a duct main body embedded in a floor. A method for retracting a cable or pipe into a floor duct, characterized in that the cable or pipe is retracted and accommodated in the floor duct by connecting the end of the retracting member to the cable or pipe and moving the cable or pipe in the longitudinal direction.