JPH07170632A - Trunk device for building - Google Patents

Abstract

PURPOSE:To execute at each completion of a building frame of each story of a building, to avoid fray at the time of carrying in trunk ducts to the site, to average number of operators, and to facilitate maintenance and replacement of components. CONSTITUTION:The trunk device for a building comprises a connecting cable 1 passed through a lower stair floor 3, and a trunk 2 having a conductor provided with connectors at both upper and lower ends, a branch unit 11 at an intermediate part, arranged longitudinally between the floor 3 and an upper stair floor 6 and connected with an upper end of the cable 1 to the connector, wherein a lower end of the cable 1 is connected to an upper side connector of the trunk 2 already arranged at a lower position of the floor 3.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a main line device of a building which supplies electricity to a plurality of floors.

[0002]

2. Description of the Related Art A main line for supplying electricity to a plurality of floors of a building such as a middle- and high-rise apartment house or an office building has been constructed at the time of finishing after the skeleton of the entire building is completed.

[0003]

However, since the construction is carried out all over the building at once, there is a drawback in that the on-site delivery of the constituents of the main line is crowded and the number of workers is concentrated at the time of finishing. In addition, the main line has a drawback that replacement and maintenance are not easy. Therefore, an object of the present invention is that construction can be carried out every time a frame on each floor of a building is completed, congestion at the time of on-site loading of trunk line components can be avoided, the number of workers can be averaged, and maintenance and parts acquisition can be achieved. It is to provide a trunk line device for a building that can be easily replaced.

[0004]

According to a first aspect of the present invention, there is provided a trunk device for a building, comprising a connecting cable penetrating the lower floor, a conductor having connecting portions at upper and lower ends, and a branch portion at an intermediate portion. Then, a trunk line vertically disposed between the lower floor and the upper floor and having the upper end of the connecting cable connected to the lower end side connecting portion of the connecting portion is provided on the lower side of the lower floor. The lower end of the connection cable is connected to the upper end side connecting portion of the installed trunk line.

According to a second aspect of the present invention, there is provided a main line device for a building according to the first aspect, wherein the main line is a duct in which conductor bars held in an outer cover are arranged in parallel, and a space where the conductor bar is exposed is provided in the outer cover. It is provided to form the branch portion.
The trunk line device for a building according to claim 3 is claim 1 or claim 2.
In, a plurality of the main lines are installed side by side.

According to a fourth aspect of the present invention, there is provided a main line device for a building according to the third aspect, further comprising a short-circuit device which is connected to the branch portions of the plurality of main lines and connects the plurality of main lines. The building main line device of claim 5 is a claim 1, claim 2, claim 3
Alternatively, in claim 4, a rack is provided between the lower floor and the upper floor, and the main line is supported by the rack.

According to a sixth aspect of the present invention, there is provided a main line device for a building according to the fifth aspect, wherein a distribution board is mounted on the rack, and a branch line derived from a branch portion of the main line is connected to the distribution board. A building main line device according to a seventh aspect of the present invention is the building main line device according to the fifth or sixth aspect, wherein a separator for separating the main line is arranged in parallel in the rack to provide a light electric wiring portion. Claim 8
In the main line device for a building according to claim 5, claim 6 or claim 7, the rack is expanded and contracted in a direction between a lower floor and an upper floor and is fixed at a predetermined position by a fixing member.

[0008]

According to the building main line device of claim 1, when the frame of the lower floor and the upper floor of the building is formed, the connecting cable is installed through the lower floor, and the connecting cable and the lower floor are installed. By connecting the conductor of the main line on the floor of the building and connecting the lower end of the connection cable to the conductor of the main line or the power line that has already been constructed on the lower side of the lower floor, branch every time the frame of each floor of the building is completed. Since it is possible to construct a trunk line with parts, it is possible to avoid congestion at the time of carrying in the components of the trunk line on the site, average the number of workers, and facilitate maintenance and replacement of parts.

According to the building main line device of claim 2, in claim 1, since the main line is a duct, the installation work of the main line can be performed by fixing the duct, the installation work is simplified, and the branching portion is provided. The connection to the conductor bar is also possible by making a fitting connection to the conductor bar. According to the trunk line device for a building of claim 3, in claim 1 or claim 2, since a plurality of the trunk lines are installed side by side, even if one trunk line is broken, inspected or repaired. The supply work can be performed using the other trunk line.

According to the building trunk line device of claim 4, since both trunk lines can be connected to each other in claim 3, even if one trunk line is broken, inspected or repaired, if only that part is separated. , Without changing the connection of the branch on each floor,
The supply work can be performed using the other trunk line. According to the building main line device of claim 5, in claim 1, claim 2, claim 3 or claim 4, a rack is provided between the lower floor and the upper floor, and the rack is provided with the rack. Since the main line is supported, the main line can be easily constructed.

According to the trunk line device for a building of claim 6, in claim 5, the distribution board is mounted on the rack, and the branch line derived from the branch portion of the trunk line is connected to the distribution board. Power distribution work to supply power to the floors is also facilitated. According to the building main line device of claim 7, in claim 5 or claim 6, since a separator for separating from the main line is arranged in parallel in the rack and a weak electric wiring portion is provided, a weak electric wiring such as a telephone or a communication line is also provided. It can be done on a rack, which makes it easier to construct light electrical wiring.

According to the building main line device of claim 8, in claim 5, claim 6, or claim 7, the rack expands and contracts in a direction between a lower floor and an upper floor, and is appropriately expanded and contracted by a fixing member. Since it is fixed to the position, it can flexibly cope with various buildings (variation in height between the upper floor and the lower floor).

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the present invention will be described with reference to FIGS. That is, the main line device of this building has the connection cable 1 and the main line 2. The connection cable 1 is
It is installed on the lower floor 3. The connection cable 1 of the embodiment is composed of three coated conductors, and has connected portions 4 and 5 having bolt holes formed at the upper and lower ends. A hole 12 is made in the lower floor 3, a penetration unit 13 is provided in the hole 12, and the penetration unit 1
The connection cable 1 is inserted through 3.

The main line 2 is a duct, which holds the conductor bar 10 having the connecting portions 7 and 8 at the upper and lower ends in the outer cover 2a and has the branching portion 11 in the middle portion so that the lower floor 3 and The connecting portion 8 arranged vertically between the upper floors 6 and on the lower end side is connected to the connected portion 5 on the upper end of the connection cable 1. The outer cover 2a of the duct of the embodiment has a substantially rectangular cross section, and as shown in FIG. 3, there are three conductor bars 10 through which the conductor bars 10 are strip-shaped and arranged in the plate thickness direction. Then, as shown in FIG. 4, both ends of the conductors 14 and 16 on both sides are stepwise bent so as to be separated from the conductor 15 in the center, and a connecting hole 20 is formed at each end to connect the connecting portion 7 on the upper end side and The lower end side connecting portion 8 is formed. Further, in order to keep the distance between the conductor bars 10 constant, a spacer 18 having a holding piece 17 for holding the conductor bar 10 is provided in the duct 2 as shown in FIG. 19
Is provided. Reference numeral 41 is a connection cable that is pierced on the upper floor when the upper floor 6 and the floor on the upper side thereof are formed,
As shown in FIG. 4, a connection box 44 is connected between the connection cable 41 and the main line 2 to connect the connected part 4 at the lower end of the connection cable 41 and the connection part 7 at the upper end side of the conductor bar 10 of the main line 2. Inserted in the connection box 44, the connection hole 20 and the connection cable 41
The nut 43 is fastened to the bolt 40 which is passed through the bolt hole for electrical and mechanical connection. Reference numeral 48 is a lid of the connection box 44, and 49 is a mounting screw thereof. The connection between the connection target portion 5 of the connection cable 1 penetrating the lower floor 3 and the connection portion 8 on the lower end side of the conductor bar 10 of the main line 2 is also connected by the connection box 44 as described above. In addition, a connection box 44 is used to connect the trunk line 2 on each floor to the connection cables 1, 41 and the like.

The branch portion 11 is elastically clamped to each conductor bar 10 through a connection hole 45 formed at an arbitrary position of the main line 2 and forming a space where the conductor bar 10 is exposed from the outer cover 2a. Terminal plug 23 with
The terminal plug 23 is held by the fitting 24 in the side groove 2b of the outer cover 2a. Reference numeral 25 is a branch line connected to the terminal plug 23. It should be noted that a plurality of branch parts 11 can be provided in the main line 2.

The main line 2 is supported by a rack 21 shown in FIGS. 1 and 2 in a vertical posture by a mounting tool 22.
This rack 21 is assembled in a ladder shape consisting of a vertical rod 28 made of grooved steel and a child girder 29 which is a horizontal rod.
And the upper floor 6 are vertically attached by a fixture 27. 42 is a fixture for the connection cable 1. The distribution board 30 to which the branch line 25 of the terminal plug 23 is connected
Is screwed to the sub-girder 28 of the rack 21. As shown in FIG. 5 and FIG. 6, this distribution board 30 has a door 48 provided in the center to accommodate a main portion 32 and two sets of branch portions 33, and a wiring duct 35 made of hard vinyl chloride resin on both sides. It is provided. The main trunk 32 has an integrated wattmeter (WHM) 36 and a main breaker 37, and the branch line 2 of the terminal plug 23.
5 is connected. The branching unit 33 has two branch breakers 38 arranged vertically and two of which are arranged vertically. The electric circuit passing through the master breaker 37 is connected to the input side and the load is connected to the output side.

Further, a separator 60 for separating the main line 2 is arranged in parallel with the main line 2 in the rack 21 to provide a low-voltage wiring portion 61, and low-voltage wiring such as a telephone or a communication line can be performed on the rack 21. Will be easier. According to this embodiment, at the stage when the skeleton of the lower floor 3 and the upper floor 6 of the building is completed,
That is, when the steel frame or concrete is completed, the connecting cable 1 is installed through the lower floor 3, the connecting cable 1 is connected to the conductor bar 10 of the duct 2 on the floor of the lower floor 3, and the lower floor 3 By connecting the lower end connecting portion 4 of the connecting cable 1 to the conductor or the power supply line (not shown) of the duct 2'which has already been installed on the lower side, the duct 2
A distribution board 30 is connected to the branch portion 11 of the load (not shown).
It is possible to supply power to. Therefore, even when the building on the upper side of the upper floor 6 is in the construction stage, it is possible to supply electric power as a temporary power source to an electric product used for finishing the lower floor 3, for example. Similarly, when the building body on the upper side of the upper floor 6 is completed, the upper side of the upper floor 6 can be supplied with power by constructing the connecting cable and the duct as described above.

As described above, since the duct 2 with the branching portion 11 can be constructed every time the building on each floor of the building is completed, it is possible to avoid the congestion of the components of the main duct at the site and to average the number of workers. It also facilitates maintenance and replacement of parts. Lower floor 3 and upper floor 6
A rack 21 is provided between the rack 21 and
Since it is supported, the duct 2 can be easily installed, and the distribution board 30 and other electric parts can be easily attached.

Further, since the distribution board 30 is composed of functional units, maintenance and extension are easy. Therefore, according to the main line equipment of this building, in actual site construction, unitization and standardization of the vertical main line,
In addition to labor saving for vertical trunk line wiring, labor saving for on-site loading, front-loading of power supply equipment, work on each floor is possible, significant reduction of lifting, use as temporary power supply, unit replacement only,
It has the advantage of being able to add more services.

A second embodiment of the present invention is shown in FIGS. 7 and 8.
Will be described. That is, in the main line device of this building, a plurality of connection cables 1 and main lines 2 are installed. Further, as a short-circuit device for connecting the trunk lines 2, an integrated type connecting / connecting device 51 is provided on the lower floor, and an individual type connecting / connecting device 52 is provided on the upper floor. As the short-circuit device, either the integrated type connection / connection device 51 or the individual type connection / connection device 52 may be used.

With this configuration, for example, even when a failure, inspection, or repair is performed at the mark 50, a short-circuit device such as the integrated connection device 51 shown on the lower floor or the individual connection connection device 52 on the upper floor is used. By connecting the two main lines 2 to each other, it is possible to stably supply power to the load without changing the branch portion 11 on each floor. In particular, even when the amount of electricity used on each floor is increasing, power can be supplied using the trunk lines of both. The same parts as those in the first embodiment are designated by the same reference numerals.

The main line 2 of this embodiment has two ducts.
Although the main installation is made, a plurality of sets of conductors may be housed in a single duct. Also, the above-described first and second embodiments
In the embodiment, the main line 2 is used as a duct, but it may be an electric wire such as a covered electric wire or a cable. A third embodiment of the present invention will be described based on FIGS. 9 and 10. That is, the main line device of this building includes the rack 21 including the first rack member 21a fixed to the lower floor 3 and the second rack member 21b fixed to the upper floor 6. The first rack member 21a has a cavity into which the second rack member 21b can be fitted, has two screw holes (not shown) through which the bolts 70 are inserted at its upper end, and its lower end has a lower floor. It is fixed on the floor 3. The second rack member 21b is
A large number of screw holes 71 through which the bolts 70 screwed into the first rack member 21a are inserted are provided at appropriate positions, and the upper ends thereof are fixed to the upper floor 6.

The rack 21 includes a first rack member 21a.
A state in which the second rack member 21b is fitted inside and the screw holes 71 of the second rack member 21b are overlapped with the screw holes of the first rack member 21a in accordance with the distance between the lower floor 3 and the upper floor 6. Nut 72 that is placed on the back through the bolt 70
Since it can be fixed by being screwed on, it is possible to flexibly cope with various buildings (variation in height between the upper floor 3 and the lower floor 6). The same parts as those of the first and second embodiments are designated by the same reference numerals.

Although the fixing member of this embodiment is composed of bolts and nuts, it may be fixed by other members.

[0025]

According to the building main line device of the first aspect, at the stage where the frame of the lower floor and the upper floor of the building is formed, the connecting cable is pierced on the lower floor, and the connecting cable and the lower cable are connected. By connecting the conductor of the main line on the floor of the floor and connecting the lower end of the connecting cable to the conductor of the main line or the power line that has already been constructed on the lower side of the lower floor, Since a trunk line with a branch can be installed, it is possible to avoid congestion at the time of loading the trunk line components into the field, reduce the number of workers, and facilitate maintenance and replacement of parts.

According to the building main line device of claim 2, in claim 1, since the main line is a duct, the installation work of the main line can be performed by fixing the duct, and the installation work is simplified and the branch portion is provided. The connection to the conductor bar is also possible by making a fitting connection to the conductor bar. According to the trunk line device for a building of claim 3, in claim 1 or claim 2, since a plurality of the trunk lines are installed side by side, even if one trunk line is broken, inspected or repaired. The supply work can be performed using the other trunk line.

According to the trunk line device for a building of claim 4, since both trunk lines can be connected to each other in claim 3, even if one trunk line is broken, inspected, or repaired, if only that part is separated. , Without changing the connection of the branch on each floor,
The supply work can be performed using the other trunk line. According to the building main line device of claim 5, in claim 1, claim 2, claim 3 or claim 4, a rack is provided between the lower floor and the upper floor, and the rack is provided with the rack. Since the main line is supported, the main line can be easily constructed.

According to the trunk line device of the building of claim 6, in claim 5, the distribution board is mounted on the rack, and the branch line derived from the branch portion of the trunk line is connected to the distribution board. Power distribution work to supply power to the floors is also facilitated. According to the building main line device of claim 7, in claim 5 or claim 6, since a separator for separating from the main line is arranged in parallel in the rack and a weak electric wiring portion is provided, a weak electric wiring such as a telephone or a communication line is also provided. It can be done on a rack, which makes it easier to construct light electrical wiring.

According to the building main line device of claim 8, in claim 5, claim 6 or claim 7, the rack expands and contracts in the direction between the lower floor and the upper floor and is appropriately expanded and contracted by a fixing member. Since it is fixed to the position, it can flexibly cope with various buildings (variation in height between the upper floor and the lower floor).

[Brief description of drawings]

FIG. 1 is a perspective view of a construction state of a first embodiment of the present invention.

FIG. 2 is a front view of FIG.

FIG. 3 is a perspective view showing a branch portion of FIG.

FIG. 4 is a perspective view showing a connection portion of FIG.

5 is a front view of the distribution board in FIG. 1. FIG.

FIG. 6 is a side view of FIG.

FIG. 7 is a perspective view showing a construction state of a second embodiment of the present invention.

8 is a front view of FIG. 7. FIG.

FIG. 9 is a perspective view showing a construction state of the third embodiment of the present invention.

10 is a partially enlarged view showing the vicinity of the fixing member of FIG.

[Explanation of symbols]

 1 Connection cable 2 Main line 7,8 Connection part 11 Branch part

 ─────────────────────────────────────────────────── ─── Continuation of front page (72) Inventor Masumi Mori 1048, Kadoma, Kadoma, Osaka Prefecture Matsushita Electric Works, Ltd. (72) Tsutomu Matsuura, 1048, Kadoma, Kadoma, Osaka Prefecture (72) Inventor Yuji Hirai 1048, Kadoma, Kadoma City, Osaka Prefecture Matsushita Electric Works Ltd. (72) Inventor Shiro Goto 8-2-1 Ginza, Chuo-ku, Tokyo Takenaka Corporation Tokyo Head Office (72) Inventor Aida Shinichi Tokyo Ginza 8-21-1, Chuo-ku, Ltd. Takenaka Corporation Tokyo Main Store (72) Inventor Takeshi Yamashita Ginza 8-21-1, Chuo-ku, Tokyo Takenaka Corporation Tokyo Main Store

Claims (8)

[Claims] 1. A connecting cable extending through a lower floor, a conductor having connecting portions at upper and lower ends, and a branching portion at an intermediate portion are vertically arranged between the lower floor and the upper floor. A main line that is provided and the upper end of the connecting cable is connected to the lower end side connecting part of the connecting part, and the upper end side connecting part of the main line already arranged on the lower side of the lower floor has the connecting cable A building main line device that connects the lower ends. 2. The trunk line is a duct in which conductor bars held in an outer cover are arranged side by side, and a space where the conductor bars are exposed is provided in the outer cover to form the branch portion. The trunk line device for a building according to claim 1. 3. The building main line device according to claim 1, wherein a plurality of the main lines are installed side by side. 4. Connected to the branch portion of the plurality of main lines,
The trunk line device for a building according to claim 3, further comprising a short-circuit device that connects a plurality of trunk lines. 5. The trunk line of a building according to claim 1, claim 2, claim 3 or claim 4, wherein a rack is provided between the lower floor and the upper floor, and the trunk is supported by the rack. apparatus. 6. The building main line device according to claim 5, wherein a distribution board is mounted on the rack, and a branch line derived from a branch portion of the main line is connected to the distribution board. 7. The building main line device according to claim 5, wherein a separator for separating the main line is arranged in parallel in the rack and a light electric wiring portion is provided. 8. The rack according to claim 5, wherein the rack is capable of expanding and contracting in a direction between a lower floor and an upper floor and is fixed at a predetermined position by a fixing member. Building mains equipment.