JPS583216Y2 - electric cable - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to electric cables and is used for indoor wiring in high-rise buildings, high-rise residences, etc.

When constructing indoor wiring in high-rise housing, etc., a trunk cable is extended from the lower floors to the top floor, one end of the trunk cable is suspended, and branch cables are connected to the trunk cable on each floor. Wiring on each floor may be connected and the lower end of the main cable may be drawn into the substation room.

In the above, connecting the individual branch cables after extending the trunk cable takes a considerable amount of time to connect one branch cable, and there are many connection points for the branch cables. For some reason, it is disadvantageous in terms of work efficiency.

For this reason, it has been proposed to connect a branch cable to the trunk cable in advance before shipping the cable.

In this case, the trunk cable with branch cables is wound around a drum, and this is transported to the installation site.

Conventionally, when there are two or more branch cables for each floor, when connecting these branch cables to the main cable, a method has been used in which each connection point is slightly shifted in the length direction of the main cable.

Therefore, as many conductor connection fittings as there are branch cables are required, and the compression operation of the conductor connection fittings must be performed many times depending on the number of conductor connection fittings.

In this case, there is no disadvantage in terms of cost due to the increased number of conductor connection fittings, and disadvantage in terms of man-hours due to the increase in the number of times of the same compression operation.

For this reason, it is conceivable to connect the two or more branch cables mentioned above to predetermined points on each floor of the trunk cable using a common conductor connection fitting, but even in this case, the arrangement of the trunk cable and branch cable at the branch point is different. Since this is not an ideal state for orderly winding of the trunk cable with branch cables, there is concern that the cable will be wound in a disorderly manner.

The electrical cable according to the present invention has two or more branch cables connected to predetermined points on each level of the main cable using a common conductor connection fitting, and has a structure that allows the cables to be arranged in a drum in an orderly manner. It is.

That is, the electric cable according to the present invention connects the conductors of the plurality of branch cables to the conductor of the main cable by compressing the C-shaped sleeve having the main cable conductor receiving groove and the plurality of branch cable conductor insertion holes. The cable is characterized in that the conductors of the cable are connected in a horizontal line.

The present invention will be explained below with reference to the drawings.

Figure 1 shows a partially cutaway side view of the electric cable of the present invention, and Figure 2
The figures each show a sectional view taken along line II-II in FIG.

In FIGS. 1 and 2, reference numeral 1 indicates a trunk insulated cable.

2, 2... are conductor connection fittings, and the insulating layer of the main insulated cable 1 is removed at regular intervals, and the main cable conductors 1', 1'... are exposed by this deletion.
・The conductor connection fittings 2, 2, . . . are fixed.

3, 3 is a branch insulated cable, and the conductor 3' at the tip
, 3' are connected to the conductor connection fitting 2, and the conductors 3', 3' of these branch cables 3, 3 and the conductor 1 of the main cable 1
' are connected by conductor connecting fittings 2 in a horizontal line.

Reference numerals 4 and 4 indicate insulating reinforcing bodies, which are provided by molding of rubber or plastic.

As shown in FIG. 3, for example, a C-shaped sleeve having a receiving groove 21 for the main cable conductor and an insertion hole 22, 22 for the branch cable conductor can be used as the conductor connecting fitting 2, and The above-mentioned connection between the cable conductor 1' and the branch cable conductors 3', 3' is achieved by compression of this C-shaped sleeve 2.

In this case, the C-shaped sleeve 2 may be compressed not only in a circular manner as shown in FIG. 2 but also in an elliptical or hexagonal manner.

In the above, the state in which the main cable conductor and the branch cable conductor are connected by the conductor connecting fittings in a horizontal row may be such that the main cable conductor 1' is arranged on one side as shown in FIG.

Furthermore, the number of branch cables connected to the - conductor connection fittings may be two or more.

The above main cable with branch cable is wound around a drum and transported to the installation site.

The state of the trunk cable with branch cables wound around the drum is as shown in Fig. 5, where the trunk cable 1 and the branch cables 3, 3 are both in contact with the drum body surface (or on the lower layer already wound). and branch cable 3 to trunk cable 1,
3 is attached.

The conductors of the trunk cable and the branch cable at the other branch connection portions are also arranged in a horizontal line, and the trunk cable and the branch cable are wound in the same way as in the above-mentioned attached arrangement.

Therefore, the trunk cable with branch cable is attached to the drum while maintaining the above-mentioned arrangement state over the entire length of the cable.
That is, the winding can be carried out in a sufficiently orderly manner without disturbing the arrangement state at the branch connection portion.

As described above, the electrical cable according to the present invention can be wound around the drum in a sufficiently orderly manner even if the main cable has a plurality of branch cables connected at regular intervals using a common conductor connection fitting. .

Therefore, advantages such as cost reduction due to a reduction in the number of conductor connection fittings and reduction in man-hours due to a reduction in the number of times the conductor connection is compressed can be achieved without any disadvantages in transporting the drum.

[Brief explanation of the drawing]

FIG. 1 is a partially cutaway side view showing an electric cable according to the present invention, FIG. 2 is a sectional view taken along line II--II in FIG. 1, and FIG.
The figure is a cross-sectional view of the conductor connection fitting used in the present invention, Figure 4 is a cross-sectional view showing the branch part of another embodiment of the present invention, and Figure 5 is an explanation showing the state of the cable of the present invention when it is wound. It is a diagram. On the surface, 1 is the trunk cable, 1' is the conductor of the trunk cable, 2 is the conductor connection fitting, 3, 3 is the branch cable, 3'
is the conductor of the branch cable 3.

Claims (1)

[Scope of utility model registration request] By compressing the C-shaped sleeve, which has a main cable conductor receiving groove and a plurality of branch cable conductor insertion holes, the conductors of the plurality of branch cables can be attached to the main cable conductor, with the conductors of all these cables aligned horizontally. An electrical cable characterized in that it is connected.