JPH1174008A - Branch cable for illumination - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a branch cable for illumination which can be connected with a trunk VVF cable simply by the use of a specified connector and can serve for multiple purposes, for example with a lamp for illumination, with a power outlet as a power supply to other appliance, etc. SOLUTION: A branch cable for illumination is structured so that two or three unit wires insulated are laid parallel, and its periphery is covered with a sheath so that a two-core or three-core VVF cable 1 is formed as having a specified length, and a socket 3 for mounting of a lamp 2 and a guard 5 for protecting the lamp 2 are mounted at one end of the cable 1, and a power outlet 4 is furnished at the other end of the cable 1. The arrangement further includes a branch cable A where a branch cord 16 is branched at the middle part of the cable 1 and which is equipped at the forefront with a plug 17 and a junction cable B which is fitted with a junction receptacle 19 to receive the plug 17 at one end of a VVF cable for junction 18 having a specified length and consisting of two or three cores.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a single energizing line which is generally used as a power line, which is insulated and covered.
The present invention relates to a branch cable for lighting suitable for branch connection from a two-core or three-core VVF trunk cable in which three or three cores are arranged in parallel and the outer periphery thereof is covered with an outer cover.

[0002]

2. Description of the Related Art Conventionally, such a two-core or three-core VVF cable is used as a main line, and another two-core or three-core VV cable is connected from this main line.
It is often necessary to connect an F cable and attach an outlet to this branch line as a power source for lighting equipment such as a lamp or other equipment. In this case, for example, when branch-connecting the VVF cable on the lighting fixture side, generally, first, the VVF cable on the main line is cut at a required location to take out the coated wire on the positive electrode side and the coated wire on the negative electrode side, respectively. Furthermore, after removing the respective inner coatings to expose the core wires, similarly, for the VVF cable on the branch side, after removing the outer coating and the inner coatings on the positive electrode side and the negative electrode side respectively to expose the core wires, the same type of VVF cable is exposed. Are joined together by pressure bonding with a metal sleeve or the like, and covered with a resin insulating cap. Such a means is very complicated and time-consuming, and only one device, for example, one illumination lamp can be attached unless a multiport outlet is provided at the free end of the VVF cable on the branch side. In view of this, the present inventor has previously proposed in Japanese Patent Application No. 8-220538 a connector capable of easily branching and connecting VVF cables. According to this connector, the main VVF cable and the branch V
In a state where the VF cables are arranged in parallel, the branch connection can be easily made without cutting the coating.

[0003]

SUMMARY OF THE INVENTION The present invention has been invented in response to the development of this connector. The use of the above-described connector makes it possible to easily connect an outlet and a lamp simultaneously from the main VVF cable. It is a main object of the present invention to provide a branch cable for lighting that can be used.

[0004]

In order to achieve the above object, the present invention takes the following measures. That is, in the branch cable for lighting of the present invention, two or three wires each having a single energized wire insulated and coated are arranged in parallel, and a two-core or a two-core wire having a predetermined length in which the outer peripheral portion is covered with an outer cover. 3-core VVF cable 1
A socket 3 for attaching the lamp 2 and a guard 5 for protecting the lamp 2 are provided at one end of the cable 1.
A branch cable A having an outlet 4 provided at the other end thereof, a branch cord 16 branched from an intermediate portion of the cable 1 and a plug 17 provided at the end thereof, and a 2-core or 3-core relay VVF. A relay cable B having a relay outlet 19 for receiving the plug 17 at one end of the cable 18 is characterized.

It is preferable that a plurality of connection ports of the outlet 4 are provided, but only one connection port may be provided. The outlets 4, 19 and the plug 17 may be either male or female.

[0006]

1 to 3 show an embodiment of a branch cable for lighting according to the present invention, which comprises a branch cable denoted by reference numeral A and a relay cable denoted by reference numeral B. FIG. The branch cable A has a single conducting wire and a core wire 1a.
In order to attach the lamp 2 to one end of a predetermined-length branched two-core VVF cable 1 whose core wire is insulated and coated with a coating material 1b, two of which are arranged in parallel, and whose outer peripheral portion is covered with an outer skin 1c. Socket 3 is provided. The socket 3 is provided with a guard 5 for protecting the lamp 2. The other end of the VVF cable 1 is provided with an outlet 4 serving as a power source for another device. Further, a branch cord 16 formed of a VVF cable is branched from an intermediate portion of the cable 1, and a plug 17 is provided at a tip thereof.

The relay cable B is formed by providing a relay outlet 19 for receiving the plug 17 at one end of a two-core VVF cable 18 having a fixed length. In the drawings shown in the embodiments, two outlets 4a of the outlet 4 are provided, but more or more outlets may be provided. The outlets 4, 19 and the plug 17 may be male or female.

FIGS. 4 to 7 show an example of a connector used to connect the above-mentioned branch cable for lighting according to the present invention to a two-core VVF cable 6. It is composed of two metal contacts 7, 7 and a main body 8 made of synthetic resin rich in insulation.

The connector main body 8 is composed of two substantially identical half-split main body components 8a and 8b foldably connected via a hinge portion 9, and is connected to each of the main body components 8a and 8b. The two grooves 10 and 11 for inserting and fitting the trunk VVF cable 6 and the relay VVF cable 18 are formed in parallel. The outer surface of the main body 8a is provided with two insertion holes 13 for inserting the metal contacts 7, 7, respectively. Then, as shown in FIG. 5, the main lines VVF are provided in the respective grooves 11 and 12.
After fitting the cable 6 and the relay VVF cable 18, the main body components 8a, 8b are folded as shown in FIG. 6, and the metal contacts 7, 7 are pressed into the insertion holes 13, 13, as shown in FIG. Metal contacts 7,7
The two cuts 7a and 7b cut the outer and inner skins of the cables 6 and 18, respectively, and electrically connect the current-carrying wires on the same pole side of both cables to connect them. In the drawing, reference numeral 14 denotes an insulating plate that covers the upper surface of the metal contact 7, and 15 denotes a lid.

By using the connector C to insert and connect the plug 17 of the branch cable A to the relay outlet 19 of the relay VVF cable B branched and connected to the main VVF cable 6, it is possible to use it as illumination by the lamp 2. The outlet 4 can be used as a power source for other devices. In addition, by sharing with the connector C, it is possible to easily connect the branch cable for lighting and the main VVF cable to the main VVF cable without cutting.

In the above embodiment, the case where the branch VVF cable 1 and the trunk VVF cable 6 of the branch cable for lighting are formed by two cores is described. However, these cables are formed by three core VVF cables having three through wires. Of course, it may be possible. In this case, a connector for a three-core VVF cable in which the number of contacts 7 of the connector C and the number of contact insertion holes 13 are three is used.

Although the embodiments and modifications which are considered to be representative of the present invention have been described above, the present invention is not necessarily limited to only the structures of these embodiments, and the present invention has the above-mentioned constitutional requirements, and The above-mentioned purpose can be achieved, and can be carried out with appropriate modifications within a range having the following effects.

[0013]

Since the branch cable for lighting according to the present invention is constructed as described above, it can be easily used by sharing with a predetermined connector without cutting the cable and easily using the main line VVF.
In addition to being able to be connected to a cable, the branch connection cable for lighting can be used for lighting with a lamp and used as a power source for other equipment with an outlet, and can be used for various uses. effective.

[Brief description of the drawings]

FIG. 1 is a plan view of a branch cable for illumination according to the present invention.

FIG. 2 is a partially cutaway perspective view of a two-core VVF cable in the lighting branch cable.

FIG. 3 is a plan view showing a state where the lighting branch cable is connected to a main VVF cable.

FIG. 4 is an overall perspective view showing an example of a connector used to connect the branch cable for illumination of the present invention to a main line VVF cable, before inserting a contact on the back side of the main body.

FIG. 5 is a perspective view of the inner surface of the main body, showing a process of using the connector.

FIG. 6 is a perspective view showing a state in which a contact is press-fitted in the connector.

FIG. 7 shows a branch VV according to the present invention using the connector.
Explanatory drawing which shows the internal state in which the F cable and the main line VVF cable were branched and connected.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 2 core VVF cable in lighting branch cable 2 lamp 3 socket 4 outlet 5 guard 16 branch cord 17 plug 18 relay VVF cable 19 relay outlet

Claims (1)

[Claims] 1. A two- or three-core VVF cable (1) having a predetermined length, in which two or three single energized wires are insulated and arranged in parallel, and the outer periphery of which is covered with a sheath. A socket (3) for mounting the lamp (2) and a guard (5) for protecting the lamp (2) are provided at one end, and an outlet (4) is provided at the other end of the cable (1). And V
A branch cable (A) in which a branch cord (16) is branched from an intermediate portion of a VF cable (1) and a plug (17) is provided at a tip thereof, and a 2-core or 3-core relay VVF having a predetermined length. A lighting branch cable comprising a relay cable (B) having a relay outlet (19) for receiving the plug (17) at one end of the cable (18).