JP2003027726A - Underfloor wiring structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an underfloor wiring structure in which the zoning of a wiring held to a wiring duct and a distribution board can be conducted simply and systematically. SOLUTION: In the underfloor wiring structure 1 in a dry type double floor structure composed of a top face floor 3 and a foundation floor 4, joint boxes 11a, 11b and 11c connected to the distribution board 2 and connectors 14a, 14b and 14c installed at the terminals of the wirings 13a, 13b and 13c held to the wiring ducts 12a, 12b and 12c mounted on the top face floor 3 while being detachably connected to the joint boxes 11a, 11b and 11c are secured to the foundation floor 4 in the lower section of an underfloor storage shed 5.

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to an underfloor wiring structure. More specifically, it relates to an underfloor wiring structure provided in a space (floor) between a dry type double floor consisting of a foundation floor and an upper floor.

[0002]

2. Description of the Related Art In recent years, the use of relatively high power consumption electric appliances such as air conditioners, personal computers, audio / video equipment, etc. has become widespread in general housing such as apartment houses and detached houses. However, when wiring to these devices is performed later, the wiring becomes intricate and becomes a state called octopus wiring, which is not only aesthetically pleasing but also a safety problem is occurring. In order to solve the above problem, for example, Japanese Patent Laid-Open No. 63-
Japanese Patent No. 314118 discloses a technique for solving a so-called wiring flood caused by an increase in office automation equipment and the like.

On the other hand, in general houses as well, the number of buildings having a dry structure, such as reinforced concrete (RC) and steel reinforced concrete (SRC), is increasing. In this case, in order to avoid the above-mentioned problems, wiring to the frame is required. The method of embedding a pipe directly or wiring to the floor part of a double floor can be considered. However, in order to embed the wiring pipes directly into the frame, it is necessary to carry out a large-scale construction.Also, when wiring to the above-mentioned floor slabs, support legs for supporting the floor panel and other pipes are required. There is a problem that the work must be avoided and the construction becomes complicated. In order to solve the above problems, it is possible to use a wiring structure in which a wiring duct is installed on the floor in advance, but if the floor plan is changed or an outlet is added to the room, it is necessary to use so-called feed wiring. ,
There is a drawback that the correspondence (zoning) with the distribution board becomes unplanned.

[0004]

DISCLOSURE OF THE INVENTION The present invention solves the above problems and preliminarily installs it on a floor floor when changing the floor plan or newly installing an electric appliance with relatively high power consumption in the room. An object of the present invention is to provide an underfloor wiring structure capable of easily and systematically corresponding (zoning) the wiring held in a wiring duct and a distribution board.

[0005]

The present invention takes the following technical means in order to solve the above problems. That is, according to the present invention, there is an underfloor wiring structure in a dry double floor structure consisting of an upper floor and a foundation floor, which is held by a joint box connected to a distribution board and a wiring duct provided on the back surface of the upper floor. There is provided an underfloor wiring structure, characterized in that a connector which is provided at the end of the wiring and is detachably connected to the joint box is provided on a basic floor below the underfloor storage. The dry double floor structure is a reinforcing bar concrete (RC) structure or a steel frame reinforcing bar concrete (SRC) structure.

[0006] By doing so, when the floor plan is changed or an electric appliance with relatively high power consumption is newly installed, the underfloor storage is removed, and the wiring duct is held on the foundation floor. By simply connecting the connector provided at the end of the wiring to the joint box of the corresponding distribution board, the required zone can be immediately energized. Usually, two or more joint boxes and connectors are used.

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION Preferred embodiments of the present invention will now be described in more detail with reference to the drawings. Figure 1
[FIG. 3] is a partial cross-sectional perspective view showing an essential part of the present invention. FIG. 1 shows a mode in which zone wiring is provided at three locations. As can be seen from FIG. 1, the underfloor wiring structure 1 of the present invention includes joint boxes 11a, 11b connected to a distribution board 2,
11c and wiring ducts 12a, 1a provided on the back surface of the top floor 3
Wirings 13a, 13b, 13c held by 2b, 12c
Joint box 11a, 11b, 11 which is composed of connectors 14a, 14b, 14c provided at the ends of
c and the connectors 14a, 14b, 14c are the underfloor storage 5
It is arranged on the lower base floor 4. Reference numeral 31 indicates the surface of the upper floor 3.

As can be seen from FIG. 1, the existing wiring is connected like a joint box 11b and a connector 14b and a joint box 11c and a connector 14c, and each zone is energized. On the other hand, zones where wiring is completed but need not be energized are separated like the joint box 11a and the connector 14a. Since the joint box 11a is connected to the distribution board 2, when it becomes necessary to energize due to a change in floor plan, installation of electric appliances, or the like, the joint box 11a and the connector provided on the foundation floor 4 are connected. It is possible to energize a desired zone in correspondence with the distribution board 2 simply by connecting with 14a.

By doing so, the underfloor storage box 5 can be simply stored without any wiring for wiring, and without any subsequent connection to the distribution board 2 normally provided at a high place. By removing and connecting the joint box 11a and the connector 14a, zone wiring can be easily performed. FIG. 2 shows a conceptual diagram of zone wiring.
In FIG. 2, in order to show conceptually, the case where each zone is on the second floor or the third floor is also arranged in a plane. Reference numerals 61, 62, 63 and 64 denote wiring duct access ports provided in each chamber.

In the above embodiment, the underfloor storage 5 is removed, and the wiring connector 1 held by the wiring ducts 12a, 12b, 12c provided on the back surface of the upper floor 3 on the foundation floor 4 is used.
4a, 14b, 14c is detachably connected to the corresponding joint boxes 11a, 11b, 11c of the distribution board, if necessary, but as shown in FIG. An opening 52 with a bottom lid 53 may be provided in the bottom 51 of the underfloor storage 5 so that the above-mentioned attachment / detachment operation can be performed without removing.

FIG. 3A shows a form in which an opening 52 with a bottom lid 53 is provided in the bottom 51 of the underfloor storage 5, and is a plan view of the underfloor storage 5 with the floor cover removed. Show. In this embodiment, a bottom lid 53 is usually attached to the opening 52 provided in the bottom portion 51 of the underfloor storage 5 to be used as the underfloor storage 5. However, when performing the attaching / detaching operation of the connectors 14a, 14b, 14c and the joint boxes 11a, 11b, 11c, the bottom lid 53 is removed as shown in FIG. By doing so, the bottom lid 53 that covers the opening 52 of the bottom 51 is removed without removing the bulky underfloor storage case 5 each time.
By performing the operation of attaching and detaching the connectors 14a, 14b, 14c and the joint boxes 11a, 11b, 11c, the zone wiring can be performed easily and systematically.

[0012]

As described above, the present invention is an underfloor wiring structure in a dry type double floor structure consisting of an upper floor and a base floor, which is a joint box connected to a distribution board and the upper floor bottom surface. A connector which is provided at an end of a wire held by a wiring duct provided in the above and which is detachably connected to the joint box, is provided on a foundation floor below the underfloor storage. By doing this,
When changing the floor plan or newly installing electric appliances with relatively high power consumption, it is possible to easily and systematically deal with the wiring retained in the wiring duct installed on the top floor in advance and the distribution board (zoning). It becomes possible to do it.

Further, the underfloor wiring structure according to the present invention is
It is preferable that an opening with a lid is provided at the bottom of the underfloor storage, and that the joint box and the connector are provided on the foundation floor below the opening. According to this structure, normally, the opening provided on the bottom is used as an underfloor storage, and the bottom cover is removed only when the connector and the joint box are attached / detached, and the above operation is performed. It can be carried out. Therefore, it is possible to easily perform the operation of attaching and detaching the connector and the joint box without removing the bulky underfloor storage case each time. As a result, zone wiring can be performed systematically without so-called feed wiring.

[Brief description of drawings]

FIG. 1 is a partial cross-sectional perspective view showing a main part of an underfloor wiring structure according to the present invention.

FIG. 2 is a conceptual diagram of zone wiring.

FIG. 3 (a) is a plan view of an underfloor storage having an opening with a bottom lid provided at the bottom. (B) It is a top view which shows the state which removed the bottom cover in FIG. 3 (a).

[Explanation of symbols]

1 Underfloor wiring structure 11a, 11b, 11c Joint box 12a, 12b, 12c Wiring duct 13a, 13b, 13c Wiring 14a, 14b, 14c Connector 2 Distribution board 3 Upper floor 31 Upper floor surface 4 Foundation floor 5 Underfloor storage 51 Underfloor Storage bottom 52 Opening 53 provided under the floor storage Bottom 53 Covering the opening provided under the floor storage Bottom 61, 62 Wiring duct access openings 63, 64 Wiring duct access opening

Claims (5)

[Claims] 1. An underfloor wiring structure in a dry double-floor structure comprising an upper floor and a foundation floor, wherein a joint box connected to a distribution board and wiring held in a wiring duct provided on the back surface of the upper floor. An underfloor wiring structure, characterized in that a connector which is provided at an end of the underside and is detachably connected to the joint box is provided on a basic floor below the underfloor storage. 2. The underfloor wiring structure according to claim 1, wherein the dry double floor structure is a reinforcing bar concrete (RC) structure. 3. The underfloor wiring structure according to claim 1, wherein the dry double floor structure is a steel-frame-reinforced concrete (SRC) structure. 4. The underfloor wiring structure according to claim 1, wherein an opening with a bottom lid is provided on the bottom of the underfloor storage, and the joint box and the connector are provided on a foundation floor below the opening. 5. The underfloor wiring structure according to claim 1, wherein each of the joint box and the connector has two or more.