JP2000201421A - Indoor wiring - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an indoor wiring method capable of improving rapidity and reliability of work. SOLUTION: One-end parts of a plurality of cables 12 to which a distribution board and various types of electric appliances are connected to the other-end parts thereof are connected through a joint box 11 (joint part) to form a unit cable 1. The framework 24a (wiring frame body) of a ceiling panel 24 to which the unit cable 1 is fixed beforehand is mounted under the floor panel 21 of a building unit U2 (building).

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an indoor wiring method, and more particularly, to an indoor wiring method using a unit cable requiring a small number of steps at a building construction site.

[0002]

2. Description of the Related Art In recent years, the use of various electric devices has increased, and indoor wiring of buildings, such as houses, has become very complicated. Therefore, advanced technology is required for the construction of the indoor wiring, and the number of construction steps is also required. Conventionally, all of the construction of this indoor wiring is usually performed at a construction site of a building. However, recently, for the purpose of speeding up construction and improving reliability, the branch connection part of the wiring is assembled in advance at the factory as a joint and hardened with epoxy resin, etc. 2. Description of the Related Art Unit cables that only connect to a board or various electric devices are becoming widespread. As the unit cable, for example, in Japanese Utility Model Application Laid-Open No. 4-14435, the branch connection part of the unit cable is divided into two groups to form two joints, and the power distribution wire is passed between the joints, so that the two groups are the same. A technique is described in which a branch connection from a power supply is used to improve wiring workability.

[0003] Recently, unit construction methods for buildings have become widespread in order to shorten the construction period of buildings. As one of the unit construction methods, first, in the factory line,
It is known to form a rectangular parallelepiped frame from columns and beams, attach an outer wall to the frame, and perform interior work to manufacture a building unit. As another construction method, a method is known in which a box-shaped body is formed from floor panels and wall panels in a factory line, and interior work is performed to manufacture a building unit. In any of these construction methods, cables for indoor wiring are attached to ceiling joists and the like during interior construction work.

[0004] A plurality of building units manufactured in the factory are transported to a construction site by truck and placed side by side using a crane on a foundation. In the case of a two-story building, a building unit is further placed thereon, and each building unit is connected using bolts or the like.

[0005] In these unit construction methods, since most of the indoor wiring is performed in a factory, the installation time of the indoor wiring at a construction site is very short. However, on the other hand, when building units are manufactured in a factory, the assembly of the building units and the wiring work to the ceiling and the like are performed on the same line, so it is necessary to perform complicated wiring within the assembly time of the building units. is there. For this reason, a large number of man-hours may be required for the indoor wiring, and in some cases, the work time on the line may be out of balance, and the manufacturing cost of the building unit itself may be high. As a technique for solving these drawbacks, Japanese Unexamined Patent Application Publication No. 4-75410 discloses a building in which electric wiring is previously incorporated into a rigid plate-shaped member arranged on the upper surface side of a building unit to improve workability and wiring reliability. A ceiling wiring board for the unit is described.

[0006]

However, in the case of the unit cable disclosed in Japanese Utility Model Laid-Open Publication No. 4-14435, there are the following problems.

By dividing the branch connection portions of the unit cable into two groups, the number of cables drawn from each branch connection portion is reduced, and the wiring workability is improved in that the cable can be easily pulled out. However, since the unit cable is installed at the building construction site,
After attaching the unit cable to the building, it is necessary to identify the wiring destination of the cable and to route one end of the cable to the position of the distribution board or various electric devices. Particularly, in the case of complicated wiring, there is a problem that it is difficult to speed up the construction. In addition, there is a problem that sufficient caution is required for wiring without mistake in the wiring destination, and if care is not taken, reliability may be impaired.

In the case of the ceiling wiring board for a building unit disclosed in Japanese Patent Application Laid-Open No. 4-75410, there are the following problems.

Since the ceiling wiring board for a building unit is disposed on the upper surface of the building unit, it requires sufficient strength for a person to work on it. In other words, there is a problem that the cost is increased in manufacturing the ceiling wiring board in order to increase the strength. In addition, since the electric wiring is built into the plate-like body and used as a ceiling wiring board, the thickness of the ceiling wiring board becomes large to incorporate a joint, making it difficult to install it on the top of the building unit There is a problem that it may be. Further, since the ceiling wiring board is disposed on the upper surface of the building unit, there is a problem that it is difficult to provide an inspection port.

The present invention has been made in view of the above-mentioned problems, and has as its object to provide an indoor wiring method capable of speeding up construction and improving reliability.

[0011]

According to a first aspect of the present invention, there is provided an indoor wiring method, comprising: connecting one end of a plurality of cables to which a distribution board or various electric devices can be connected; In an indoor wiring method in which a unit cable is branched and connected at a joint portion and the unit cable is installed in a building, the unit cable is fixed or temporarily fixed to a wiring frame in a predetermined position in advance, and this wiring is performed. It is characterized in that a frame is attached to a building.

[0012] According to a second aspect of the present invention, there is provided the indoor wiring method according to the first aspect, wherein the wiring frame is attached to a ceiling and / or a floor.

According to a third aspect of the present invention, in the indoor wiring method according to the first aspect, the wiring frame is a frame of a ceiling panel.

According to a fourth aspect of the present invention, there is provided the indoor wiring method according to the first to third aspects.
An inspection port is provided at the position of the joint.

The indoor wiring method according to the fifth aspect of the present invention is the indoor wiring method according to the second to fourth aspects of the present invention.
One end of the cable branched or connected at the joint portion of the unit cable fixed or temporarily fixed to the wiring frame is wired to the upper floor side and the lower floor side, respectively.

In the present invention, one joint may be provided on one wiring frame. However, if a plurality of joints are provided, branching of a cable to a distribution board or various electric devices is performed at a joint near the joint. It can be carried out. As a result, the distance of the wiring can be shortened, which is effective.

If the joint portion is a joint box for checking the branch connection portion, it is possible to confirm whether or not the connection of the cable is correct, and to correct the connection if necessary.

Further, a plurality of wiring frames are used, and the unit cables of the wiring frame mounted on the floor are wired to outlets provided near the floor surface, and the unit cables of the wiring frame mounted on the ceiling are mounted. Then, the power supply circuit can be divided, such as wiring to a lighting fixture provided on the ceiling.

[0019]

In the indoor wiring method according to the first aspect of the present invention, a wiring frame in which unit cables are fixed or temporarily fixed at predetermined positions in advance is attached to a building. Therefore, one end of the cable can be fixed in advance to the position of the distribution board or various devices, or the position of the wiring frame suitable for wiring to them, and at the construction site, the wiring destination of the cable can be changed. It is possible to reduce the distance for identifying and routing one end of the cable to the wiring destination.

Further, since the connection of the cables and the wiring to the wiring frame can be performed in advance using a jig at a factory,
The unit cable can be efficiently attached to the wiring frame.

In the indoor wiring method according to the second aspect of the present invention, since the wiring frame is attached to the ceiling and / or the floor, the wiring frame does not need any special strength or structure. In addition, for those wiring to various electric devices near the floor surface, attach the wiring frame to the floor, and for those wiring to the electric devices near the ceiling surface, attach the wiring frame to the ceiling to reduce the cable length. Can be shorter.

In the indoor wiring method according to the third aspect of the present invention, since the wiring frame is a frame of a ceiling panel, a dedicated wiring frame is not required.

In the indoor wiring method according to the fourth aspect of the present invention, the inspection port is provided at the position of the joint portion of the cable, so that the inspection of the joint portion is possible even after the construction of the building is completed. Rearrangement of the connection is also possible.

In the indoor wiring method according to the fifth aspect of the present invention, one end of the cable branched or connected at the joint of the unit cable fixed or temporarily fixed to the wiring frame is wired to each of the upper floor and the lower floor. . Therefore, two-level wiring can be performed with one wiring frame. Further, since wiring can be performed from one frame to the electric equipment near the floor on the upper floor and the electric equipment near the ceiling on the lower floor, the length of the wiring can be shortened.

[0025]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below based on embodiments with reference to the drawings. FIG. 1 is a sectional view of a unit building showing an embodiment of the indoor wiring method of the present invention, FIG. 2 is an enlarged sectional view of a portion A in FIG. 1, and FIG. 3 shows a wiring frame of the present invention. It is a top view. FIG. 4 is a sectional view of a unit building showing another embodiment of the indoor wiring method of the present invention.

In FIG. 1, a unit building U is composed of building units U1, U2 and a roof unit U3. The building unit U1 is fastened to a foundation (not shown) by an anchor bolt, and the building units U1, U2 and the roof unit U3 are fastened to each other by bolts or the like.

The building unit U1 is composed of a floor panel 21 and a wall panel 22, and is mounted and fixed on a foundation (not shown).

The building unit U2 comprises a floor panel 21, a ceiling panel 24 and a wall panel 22 thereunder, and is mounted and fixed to the building unit U1.

The roof unit U3 is composed of a roof panel 23, a ceiling panel 24, a wall panel 22a, and a hut (not shown), and is mounted and fixed on the building unit U2.

The ceiling panel 24 has a unit cable 1
Are fixed at predetermined positions. Unit cable 1
A cable 12 is branched and connected at a joint 11. Lighting fixtures 13a, 13
b, switch 14, and outlet 15 are connected.

The indoor wiring method of the present invention will be described in detail with reference to FIGS.

As shown in FIG. 3, the ceiling panel 24 is formed by forming frame members 241 and 241 at both ends and frame members 242 and 242 on both sides into a square, and hanging a plurality of ceiling joists 243 on the frame members 242 and 242 on both sides. By passing the ceiling panel framework 24
a (wiring frame), and the ceiling panel frame 2
It is configured by attaching a ceiling panel 244 to the lower surface of 4a.

In FIG. 2, the floor panel 21 forms a square frame between the end joists (not shown) at both ends and the side joists 211 on both sides, and a plurality of floor joists 212 are bridged between the side joists 211. , Floor surface materials 21 on both sides of this floor frame
3. It is configured by attaching the lower surface member 214.

The wall panel 22 forms a wall frame by providing a plurality of studs 223 between pillars on both sides (not shown) and upper and lower frame members 221 and 222, and a heat insulating material (not shown) is formed in the wall frame. And further, outer wall members 225 and inner wall members 226 are attached to both sides of the wall frame.

Ceiling panel framework 24a (wiring frame)
, Four joint boxes 11 (joint portions) are attached, and an inspection port 245 is provided in a ceiling surface member 244 on the lower surface of the joint box 11. Pulling down the cable 12 from the ceiling panel frame 24a to the wall panel 22 is performed by using the frame members 2 on both sides of the ceiling panel frame 24a.
42 notch 242a and upper and lower frame members 2 of wall panel 22
This is performed through the cutouts 221a and 222a of the reference numerals 21 and 222.

Next, the procedure of the indoor wiring method according to the present invention will be described using the building unit U2 as an example. In the factory line,
The wall panel 22 and the floor panel 21 are manufactured.
The building unit U2 is manufactured by attaching the floor panel 21 to the floor. The frame 24a of the ceiling panel is manufactured in a sub-line of a factory, and the unit cable 1 is attached and fixed. The frame 24a of the ceiling panel to which the unit cable is fixed is carried to the line, and attached below the floor panel 21 of the building unit U2.

The building unit U2 manufactured as described above
Is transported to the construction site by truck together with other building units, and is mounted and fixed on the building unit U1 on the first floor. next,
Wire from the building unit U2 on the second floor to the building unit U1 on the first floor. Connect one end of the cable 12 to the ceiling panel framework 2
4a and the notches 242a of the frame members 242 on both sides and the notches 221a of the upper and lower frame members 221 and 222 of the wall panel 22.
Pull down to wall panel 22 through 222a and switch 1
4 and outlet 15 are attached. If necessary, extend one end of the cable 12 to another building unit,
The joint box 11 connects to another cable 12. Then, the ceiling surface material 245 and the backing inner wall material 226a
Attach. By providing the inspection port 245, the indoor wiring of this portion is completed.

As described above, according to the present invention, when a building unit is manufactured in a factory, the wiring frame can be manufactured separately from the building unit in the sub-line, so that the work time on the line is not balanced. Nothing.

Further, at the construction site of the building, one end of the cable temporarily fixed at a predetermined position is merely pulled down in the wall panel or sent to an adjacent building unit, so that the wiring work is shortened. The construction period of the unit building can be shortened.

In the embodiment described above, the frame 24a of the ceiling panel on each of the first and second floors is used as a wiring frame, and the joint box 11 of the frame 24a of the ceiling panel on that floor is provided for each floor.
, The cable 12 is pulled down into the wall. Next, another embodiment will be described with reference to FIG.

As shown in FIG. 4, the cable 12 branched from the joint box 11 of the ceiling panel 24 on the first floor is
Stand up on the floor 22 and connect the other cables 12
The structure was lowered into the floor wall 22. By doing so, in addition to the effect of the above embodiment, the length of the wiring up to the second floor outlet can be shortened. That is, the construction cost and material cost of the wiring can be reduced.

Although the embodiment of the present invention has been described with reference to the drawings, the specific structure of the present invention is not limited to this embodiment, and there are design changes and the like that do not depart from the gist of the present invention. Are also included in the present invention.

For example, the wiring frame may be a dedicated part and may be attached to a floor panel or a ceiling panel.

The wiring frame may have a size that covers the entire floor area of the building unit, or may be smaller than the floor area of the building unit.

The building may be composed of a building unit composed of columns and beams, or may be a general building.

The wiring frame in which the unit cables are fixed or temporarily fixed in a predetermined position may be attached at the construction site of the building.

[0047]

According to the indoor wiring method of the first aspect of the present invention, one end of the cable is previously placed at a position of a distribution board or various electric devices, or a predetermined position of the frame suitable for wiring to them. Since the cable is fixed or temporarily fixed, it is not necessary to identify a cable wiring destination and to route one end of the cable to the wiring destination at a building construction site. That is, the number of on-site construction steps can be reduced. Also, since the unit cables can be efficiently attached to the wiring frame at the factory, the number of wiring steps can be reduced.

In the indoor wiring method according to the second aspect of the present invention, since the wiring frame is attached to the ceiling and / or floor, no special strength or structure is required for the wiring frame, so that the manufacturing cost is reduced. Can be kept low. In addition, the cable length should be shortened by installing the wiring frame on the floor for wiring close to the floor, and by attaching the wiring frame to the ceiling for wiring close to the load. Therefore, the number of materials can be reduced and the number of construction steps can be reduced.

In the indoor wiring method according to the third aspect of the present invention, the wiring frame is a frame of a ceiling panel,
Since a dedicated wiring frame is not required, indoor wiring can be performed without increasing the number of man-hours and materials for building.

In the indoor wiring method according to the fourth aspect of the present invention, since the inspection port is provided at the position of the joint of the cable, the inspection of the joint is possible even after the completion of the construction of the building. Further, the connection can be rearranged. Therefore, the inspection can be performed after the completion of the wiring work, and even if the branch connection is wrong, it can be corrected.

In the indoor wiring method according to the fifth aspect of the present invention, one end of the cable branched or connected at the joint portion of the unit cable fixed or temporarily fixed to the wiring frame is placed on the upper floor side and the lower floor side, respectively. Since wiring is performed, wiring for two floors can be performed with one wiring frame. That is, since the number of wiring frames can be reduced, the cost can be reduced. Further, since wiring can be performed from one frame to the electric equipment near the floor on the upper floor and the electric equipment near the ceiling on the lower floor, the length of the wiring can be shortened. That is, the construction cost and material cost of the wiring can be reduced.

[Brief description of the drawings]

FIG. 1 is a sectional view of a unit building showing an embodiment of an indoor wiring method of the present invention.

FIG. 2 is an enlarged sectional view of a portion A in FIG. 1;

FIG. 3 is a plan view showing a wiring frame of the present invention.

FIG. 4 is a sectional view of a unit building showing another embodiment of the indoor wiring method of the present invention.

[Explanation of symbols]

 U Unit building (building) 1 Unit cable 11 Joint box (joint part) 12 Cable 13a, 13b Lighting equipment (various electric equipment) 14 Switch (various electric equipment) 15 Outlet (various electric equipment) 21 Floor panel 24 Ceiling panel 24a Ceiling Panel frame (wiring frame) 245 Inspection port

Claims (5)

[Claims] 1. A unit cable is constructed by connecting one end of a plurality of cables to each of which a distribution board or various electric devices can be connected at a joint portion to form a unit cable, and constructing the unit cable in a building. In the indoor wiring method to
An indoor wiring method, wherein the unit cable is fixed or temporarily fixed to a wiring frame at a predetermined position in advance, and the wiring frame is attached to a building. 2. The indoor wiring method according to claim 1, wherein the wiring frame is attached to a ceiling and / or a floor. 3. The indoor wiring method according to claim 1, wherein the wiring frame is a frame of a ceiling panel. 4. The indoor wiring method according to claim 1, wherein an inspection port is provided at a position of the joint. 5. An end of a cable branched or connected at a joint portion of a unit cable fixed or temporarily fixed to the wiring frame body is wired to an upper floor side and a lower floor side, respectively. And the indoor wiring method according to 4.