JPH05924B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Technical Field of the Invention The present invention relates to a temporary suspension wiring device that serves as a power source for internal lighting and power tools when constructing a building or the like.

(b) Background of the technology When constructing a building, etc., wiring is required to power internal lighting and power tools, but this wiring is suspended from the ceiling so as not to interfere with construction work. It is desirable to suspend it like this.

(c) Conventional technology and problems Conventionally, a fixed wiring device for driving the F cable into the upper floor slab has been known, but because it is disposable and uneconomical, removable temporary suspension wiring has been developed. Devices are becoming available.

Figure 12 shows a conventional example of a wiring device for temporary suspension.
and a plurality of electrical branches b provided on the moving electric wire a.
and a hook c attached to the electrical branch b. With this wiring device, wiring is installed by hanging the hook C on an appropriate part of the ceiling, but the hanging position from the ceiling is fixed and must be removed when constructing a double ceiling. There's a problem.

As shown in Fig. 13, this wiring device is known in which electrical branch b is divided into two parts and assembled with screws d. nail e
There is one in which the electric branch b is configured to bite into the moving electric wire a, and the attachment position of the electric branch b to the moving electric wire a is flexible.

Furthermore, the present applicant has previously proposed a temporary suspension means in Japanese Patent Application No. 58-248750.

(iv) Purpose of the Invention The present invention has been made in view of the problems of the prior art described above, and its purpose is to provide a temporary structure that can maintain a suspended state for as long as necessary without interfering with ceiling construction, etc. An object of the present invention is to provide a suspension wiring device.

(e) Structure of the Invention In order to achieve this object, the temporary suspension wiring device according to the present invention is designed to connect to a movable electric wire such as a cab tire cable that can be moved in a charged state, and to a movable electric wire that can be fixedly or detachably attached to the movable electric wire. A mobile wiring device consisting of a plurality of electrical branches provided therein, and a thin or strip-shaped object that is fixedly or detachably provided to the mobile wiring device and suspends the mobile wiring device and the same. It consists of a suspension body made up of

(F) Effect The temporary suspension wiring device according to the present invention utilizes the joints in the ceiling by suspending the movable electric wire with a thin suspension member as proposed earlier by the applicant. This allows the suspension state to be maintained.

(G) Embodiments of the Invention Examples of the temporary wiring device according to the present invention will be described below with reference to FIGS. 1 to 11.

Fig. 1 shows a suspended state in which an electric branch 3 is suspended by fixing a suspender 2 to an upper floor slab 1, and the electric branch 3 is attached to the end of a moving electric wire 4 on which the electric branch 3 is attached. A connector plug 5 and a connector body 6 are attached. Although the suspension body 2 is shown as a thin wire made of tegus wood, it may be made of other thin material such as a thin strip or a thin wire with knobs provided at regular intervals. A fixing member 7 as shown in FIGS. 2 to 4 is used. This fixing member 7 is suitable when the upper floor slab 1 is made of concrete, and has a recess 7a opening downward and a flange-shaped projection 7b formed around the upper end. It is attached to a formwork for pouring concrete and buried in the upper floor slab 1. If the hanging support 2 is fixed and wrapped around the protrusion 7c in the recess 7a when it is attached to the formwork, it will not interfere with concrete pouring work, etc., and once the formwork is removed, the hanging support will be removed. Body 2 will hang down.

The suspension body 2 made of such a thin material can be passed through the joints etc. during construction of the ceiling 8 under the upper floor slab 1 as shown in FIG.
It is possible to maintain a suspended state by hanging. Moreover, when the suspension is released, if the suspension body 2 is cut, the cross section is minute, so there will be no visible damage.

The part suspended by the suspension body 2 may be the electrical branch 3 as shown in FIG.
The movable electric wire 4 shown in the figure may be used, and in the case of a removable electrical branch b as shown in FIG. 13, the suspension means shown in FIG. 3 or 4 is more suitable. Hanging body 2
Although the connection between the electric branch 3 and the moving electric wire 4 is arbitrary, in the illustrated embodiment, a combination body 9 is used in consideration of convenience in adjusting the suspension height. This joint body 9 has a first joint part 9a, which is a notch in which the suspension body 2 is sandwiched, and a second joint part, which is connected to the electric branch 3 and the moving electric wire 4, and is connected to the suspension body 2. The body can be slid up and down freely. If the first connecting portion 9a is a notch, it will be a non-slip connection with the hanging body 2 due to friction, but other spring clamps or the like may be used to increase the bonding force. Furthermore, if the hanging body 2 is biased to maintain its wound shape, the frictional force will be higher than when it is straight, and the bonding force can be increased. The structure of the second coupling portion 9b is arbitrary, and may be formed integrally with the electrical branch 3 and the moving electric wire 4.

Figures 6 and 7 show an embodiment in which the moving electric wire 4 is a three-wire type. Figure 6 shows the wiring for a power tool with the connector body 10 attached to the electrical branch 3, and Figure 7 shows the wiring for an electric tool. A lighting fixture 11 is attached to the branch 3 as lighting wiring. This three-wire system consists of an S polar line, an R polar line, and an N (neutral) line.
-N and RN can be selected and the electric capacity can be increased, so it is possible to form the moving electric wire 4 long. Furthermore, in this embodiment, R-
Since N and S-N are selected alternately, when one connector body becomes overloaded, it is sufficient to connect it to the adjacent connector body 10, which is convenient for the user. That is,
Work using power tools is concentrated in a certain place, and 1
Even if the circuit becomes overloaded, there is no need to draw power from a distant power source. Incidentally, the wiring for the power tool shown in FIG. 6 is provided with an E (ground) wire.

FIGS. 8 and 9 show an embodiment in which one of the S and N pole wires of the three-wire system is used as a dedicated power supply line, and the eighth
As shown in Fig. 9, this moving electric wire 4 selects R-N and the S pole line is used as a dedicated power supply line, so S-N is selected for the next moving electric wire 4 to be connected to the connector plug 6. I will do it. In this embodiment as well, it is possible to further lengthen the movable electric wire 4 by connecting in the same manner as in the embodiments shown in FIGS. 6 and 7. Further, in this embodiment, since the length of each unit of the device is short, it is possible to handle it in parts during transportation and installation work, making it easy to handle. Furthermore, it can be handled in the same way as a conventional two-wire one-circuit type.

FIG. 10 shows an embodiment in which a highly elastic material 12 such as a steel wire is embedded inside the movable electric wire 4 along its length, and the movable electric wire is moved between the parts suspended by the above-mentioned hanging holder 2. This prevents sagging and prevents it from interfering with construction work.

FIG. 11 shows an embodiment in which the high elastic material 12 shown in FIG. 10 is biased into a coil shape, which facilitates collection when removing the suspension.

(h) Effects of the invention As described above, according to the wiring device for temporary suspension according to the present invention, since it is suspended by a thin suspension member, the suspended state does not interfere with ceiling construction, etc. This has the effect of improving the workability of construction work by making it possible to always obtain the necessary power. Further, since it is only necessary to cut the suspension body to release the suspension, the workability of removal is good, and there is an effect that the remaining portion does not become visually damaged.

[Brief explanation of drawings]

Fig. 1 is a front view showing the state of implementation of the present invention;
, 3 and 4 are cross-sectional views showing the means for attaching the suspension body, and FIG. 5 is a front view showing another state of FIG. 1.
Figures 6 to 9 are wiring diagrams showing the wiring types of the moving electric wire, Figure 10 is a sectional view showing an example of the structure of the moving electric wire, Figure 11 is a front view of the same, and Figure 12 is a conventional example. The front view and FIG. 13 are enlarged sectional views of the main parts of FIG. 12. 2... Hanging body, 3... Electric branch, 4... Moving electric wire.

Claims (1)

[Claims] 1 A mobile wiring device consisting of a mobile electric wire such as a cab tire cable that can be moved in a charged state, a plurality of electrical branches fixedly or detachably installed on the mobile electric wire, and a mobile wiring device that is fixed to the mobile wiring device. 1. A wiring device for temporary suspension, which is detachably provided and connects the movable wiring device and a suspension body made of a thin or strip-like object that suspends the movable wiring device.