JPH0743954Y2 - Centralized connection connector - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION The present invention has several conductors, each of which is a single wire, as an internal insulator for indoor wiring from a distribution board to a terminal outlet, etc., inside various buildings such as houses and buildings. The present invention relates to a centralized connection connector for connecting or branching cables when they are used and coated with an outer protective layer.

[0002]

2. Description of the Related Art Conventionally, in the case of connecting an electric wire or cable in which a stranded wire, which is a thin annealed copper wire with a diameter of 1/10 to 1/100 mm inside and outside, is used as a conductor, the conductors at the exposed ends are connected to each other. A method is employed in which they are twisted and inserted into a conductive sleeve covered with an insulating cylinder, and the sleeve is crimped onto the conductor end portion from above the cylinder. In that case, the insulation coating of the crimping portion can be realized simultaneously by only performing the crimping operation, which is convenient for the wiring work of the stranded cable.

[0003]

Therefore, according to the conventional wiring or wiring method of this type, for example, the twisted cables are connected to each other near the electrical equipment after the connector near the wall, that is, in the wiring portion where the load is small. Although there is no problem with the wiring, the number of diameters is high in high load areas such as in the ceiling.
Since a cable with a relatively thick single wire of mm is used, it is strong enough to press the aligned single wires sufficiently from above the insulating cylinder such as plastic without breaking the cylinder. There was a problem that it was impossible to crimp to. Further, in such a conventional method, therefore, the vinyl tape has to be wound many times over the metal sleeve fitted and crimped onto the aligned two or several single-wire type cable end conductors. However, it is not always easy to perform this work on a large number of close-together connecting portions in a place where the lighting is small and the lighting is insufficient such as in the ceiling. Moreover, since the tape winding sleeves are left undisturbed, the metal sleeves may be bitten by the mouse, or the metal sleeves may be short-circuited or the beam material may be leaked.

Therefore, in order to solve the problems of the conventional wiring method, the present invention eliminates the need for crimping the metal sleeve and winding the tape, thereby improving the wiring work efficiency. For the purpose of improving the safety of the connector portion, an object is to provide a centralized connection connector capable of connecting in a compact manner only by inserting bare single-wire core wires in an arbitrary combination.

[0005]

The outline of the structure of the present invention for achieving the above object will be described first with reference to the reference numerals in the drawings.
A flat conductor (2) for connecting the single wires (T) of the plurality of cables (C), each of which is covered with an inner insulator and covered with an outer protective layer
A pair of bending pieces (32a), (1a), which are fastened to one end of the central substrate part (31) and are bent from the substrate part (31) to the other end of the conductor (2). 32b), gradually approaching said conductor (2) and said substrate portion (3)
1) Inclining protrusions (33) inclined in a direction away from 1) are formed on the bending pieces (32a), (32b), respectively.
In addition, the substrate portion (31) is provided with small holes (34) of a size capable of passing the uncoated single wire (T) at both positions sandwiching the conductor (2), and an elastic hard metal material. The wire retaining body (3) is used. The upper end of the electric wire connector (D) including the electric wire retaining body (3) and the conductor (2) to which the electric wire retainer is attached has a plurality of electric wire insertion openings (1a) in the upper part of the case body (1) made of an insulating material. ) And fixed in the small chambers (1g) formed in the body below the main chamber. Then, between the case body (1) and the lower end surface of the top plate (4b) of the lid body (4) detachably attached to the case body (1) by the support legs (4a),
A space (5) having a height that allows the outer protective layer to pass through the cable (C) that has not been removed is formed between the support legs (4a) and (4a) . In particular, the characteristic structure unique to the present invention
From the one end to the other end as the conductor (2)
Use a continuous piece and cut the above-mentioned inclined projection (33).
Each part (35) of the bent pieces (32a) and (32b) that are raised
And downward extensions (36), (36) located on both sides thereof
And the score lines (37), (3
7) intervenes, whereby each part (35) is independent.
The point is that it can be elastically deformed .

It is preferable that the lid body (4) is formed of a transparent insulating material for the reason described below, and therefore, the transparent lid body (4)
Is one of the main preferred embodiments of the present invention.

[0007]

Since the connector of the present invention has such a structure, the lid body is detached from the case body, the required bare core wires are inserted into the same wire insertion opening, and the above-mentioned spring piece shape is inserted. Each core wire is passed through a small hole in the base plate portion of the bent piece in an appropriate order. Then, after confirming that these core wires are elastically held between the bent piece of the wire retaining member and the electric conductor which is close to and opposed to the bent piece, and cannot be pulled out by the inclined projection piece. Then, the lid body may be again locked to the case body.

Therefore, in the centralized connection connector of the present invention, the electric wire is inserted from above the case body, and after or in advance, the case body is screwed to an appropriate fixed building member such as a beam material behind the ceiling. It can be configured to be fixed by means such as a stop, or to be fixed to the building member or the like by the lid after completion of connection. as a result,
Since the conventional metal sleeve is not necessary at all, the crimping operation is not necessary, and the work of winding the insulating tape around the sleeve is not necessary, which is not only convenient in terms of work efficiency, but also short circuit between core wires and It is also possible to eliminate the concern of electric leakage from the core wire to the building members and improve the safety related to the connector.

[0009]

Embodiments of the present invention will be described below with reference to the drawings. 1 to 5 are views showing an embodiment of the present invention, and FIGS. 1 and 2 show a usage state of a concentrated connection connector according to the embodiment. That is, the connector is a cable in which several core wires consisting of a single wire (T) are each covered with an internal insulator (N) and the whole is covered with an external protective layer (G).
(C) Each single wire (T) and other similar cables (C)
This is a connector for connecting between a single wire (T ') corresponding to (T) and.

The connector is constructed such that a transparent lid body (4) also made of an insulating material is detachably attached to a case body (1) made of an insulating material, and the upper end surface of the case body is attached to the case body. A plurality of wire insertion openings (1a) are arranged at appropriate intervals, and a screw hole (1c) is formed in the lateral protruding piece (1b) at the lower end.
Is provided, and chamfered portions (1d) are vertically machined at four corners, and small recesses (1e) are provided at the lower end of the chamfered portions.

On the other hand, the cover body (4) is provided with supporting legs (4a) vertically extending from four corners of the top plate (4b), and small protrusions (4c) provided at the lower ends of the supporting legs have the case body (1). ) Is elastically fitted into the small concave portion (1e), and is detachably attached to the case main body (1) as shown by an arrow (Y) in FIG. Between the lower end surface of the top plate (4b) of the lid body (4) attached in this manner and the upper surface of the case body (1), the cable (C) in which the external protective layer (G) is not removed is provided. A space (5) having a height that allows passage is formed between the support legs (4a), (4a).

A wire insertion opening (1a) in the case body (1)
The electric wire connectors (D) are housed in the individual small chambers (1g) below and facing each other as shown in FIG. This small chamber (1g) has a diameter slightly larger than the opening (1a), and the shoulder (1f) between them has the upper end of the electric wire connector (D), that is, the upper end of the electric wire retaining body (3) and / or Alternatively, the upper end of the conductor (2) is supported and the conductor (2) with the wire stopper (3) attached
The lower end of is fixed to the lower end of the case body by a bottom cover (6) elastically fitted by a small projection (6a).

The bottom cover (6) may not be integrated as shown, but may be separate for each small chamber (1g).

[0014] Electric wire connection device stored and fixed in each small chamber (1g)
(D) As one component, the central substrate portion (31) (corresponding to the vertical side of the U-shape) of the wire retaining body (3) formed of an elastic hard metal material is another component. As shown in FIG. 3, the plate-shaped rigid conductor (2) is fastened to one end thereof, and a pair of bends are made from the substrate portion (31) toward the other end of the conductor (2). The pieces (32a) and (32b) (corresponding to two lateral sides of the U-shape) are bent and formed, and have a generally U-shaped cross section.

Nearly the middle part of the bent pieces (32a), (32b) is asymptotic to the conductor (2) and corresponds to each of the small holes (34) described later, and the substrate portion (31). Inclined protrusions (33) that are inclined in a direction away from are formed respectively. On the other hand, the substrate part
One or more small holes (34) each having a size capable of passing the uncoated single wire (T) are formed on both sides of the conductor (2) sandwiching the conductor (2).

Bending pieces (32a), (32
b) each part (35) and the lower extensions (3
6), (36), and the score lines (37), (3
7) intervenes, whereby each part (35) can be elastically deformed independently. Therefore, up to six single-wire core wires (T) can be connected to one electric wire connector (D) in the example shown in the figure.
Even if the number is less than or equal to this number, the portion (35) and the inclined projection (3
By 3), the upper and lower points are always pressed against the surface of the conductor (2).

The base plate (31) is locked by hook-shaped parts (2a) provided on both sides of the upper end of the conductor (2).
Of course, other locking modes can be adopted.

The connector according to the embodiment of the present invention thus constructed has the cross-sectional shape shown in FIGS.
In the figure, reference numeral (1h) is a raised portion that acts as a mark or guide when inserting each core wire (T).

The method of using this concentrated connection connector is as described above, so it will not be described again. After connection, screw (B) is screwed into the beam (H) from the screw hole (1c) as shown in FIG. It can be fixed with. A space formed between the lower end surface of the top plate (4b) of the lid body (4) and the case body (1) between the support legs (4a) and (4a).
(5) is also as described above that the outer protective layer (G) has a height that allows the unremoved cable (C) to pass therethrough.
One or more cables (C) can be inserted into (5) and the lid (4)
The above protects the cable of the external protection layer (G) removed portion thus connected and the portion of the electric wire insertion opening (1a) of the connector from hitting against other objects, dust and the like.

Although the embodiments considered to be typical of the present invention have been described above, the present invention is not necessarily limited to the structures of these embodiments, and has the above-mentioned constitutional requirements of the present invention, and The present invention can be appropriately modified and carried out within a range that achieves the object of the present invention and has the following effects. For example, in the case of single-phase two-wire wiring, the number of wire connector (D), and therefore the number of wire insertion openings (1a), may be any number of 2 or more. Single-phase three-wire type and three-phase type In the case of, it is of course possible to use an arbitrary number of three or more, and the supporting leg (4a) of the lid (4) is made longer than that shown in the drawing, and the supporting leg is attached to the beam (H) or the like. A fixing method, a non-fixing method, and the like can be used.

[0021]

[Effect of the Invention] As is apparent from the above description, according to the present invention, the core wires (T) and (T ') of each cable (C) are detached from the case body (1) of the lid body (4). Is pushed in from the insertion opening (1a), and the lower end thereof is sufficiently deep, that is, slightly below the lower end of the portion (35),
The connector is provided with an easy-to-use structure in which it is electrically connected to the core wires (T ′) and (T) of the other cable (C) through the conductor (2) only by inserting it. in expectation significant effects on practical use of the ability RitsuMuko, the wiring work in narrow ceiling or the like as described above
Wear. Particularly, in the present invention, the conductor (2) is
A plate that is continuous from one end to the other, that is, from the top to the bottom
Since it is a body, there is a risk that it will get caught when the wire end is inserted.
Not, and for each inserted wire end,
Bent pieces (32a), (32) that are cut and raised from the inclined protruding pieces (33).
Each part (35) of b) has a score line (37), (37).
Separated from the lower extensions (36), (36) via
Therefore, each wire is elastically deformed independently and each wire end is securely
It is advantageous that pinching pressure can be maintained.

Also, in the connector according to the present invention, the wall portion of the case body (1) made of an insulating material is interposed between the electric wire connectors (D), that is, between the small chambers (1g), (1g). Moreover, since the upper part is covered with the insulating lid (4), there is no fear of short circuit or electric leakage. In addition, the case body with a simple structure is fitted with the required number of electric wire connectors with a simple structure in a compact manner, and the bottom lid is used to stop the rational and simpler structure than any conventional type. As a result, it is possible to expect the effects of easy production and low production cost.

It is also worth noting that since a large number of electric wire connectors can be accommodated in a single connector, connections between a large number of congested cables can be concentrated in a single place in an orderly manner, as well as intricate wiring. After performing the above, you can surely and easily visually check whether there is a wiring mistake before attaching the lid,
Another advantage of the connector of the present invention is that when the lid is transparent, the correctness of the connection can be checked by seeing through even after the lid is attached.

[Brief description of drawings]

FIG. 1 is an exploded perspective view showing an embodiment of the present invention.

FIG. 2 is a sectional view taken along line II-II in FIG.

FIG. 3 is a perspective view of a main part.

FIG. 4 is a vertical cross-sectional view of another main part.

5 is a sectional view taken along line VV in FIG.

[Explanation of symbols]

 (1) Case body (1a) Wire insertion opening (1g) Small chamber (2) Conductor (3) Wire retainer (31) Board part (32a) Bent piece (32b) Bent piece (33) Inclined protrusion Piece (34) Small hole (4) Lid (4a) Support leg (4b) Top plate (5) Void (6) Bottom lid (T) Single wire (T ') Single wire (C) Cable (D) Wire connector

Claims (1)

[Scope of utility model registration request] 1. A case body by a support leg (4a)
The top plate (4) of the lid (4) detachably attached to (1)
b) Between the lower end surface and the case body (1), an external protective
An empty space that allows the unremoved cable (C) to pass through the protective layer
A gap (5) is formed between the supporting legs (4a), (4a).
A single wire (T) of different cables (C) and (C) in which several core wires consisting of single wires (T) and (T ') are each covered with an internal insulator and the whole is covered with an outer protective layer. , (T ')
A connector for connecting one another, which is fastened to one end of a flat plate-shaped conductor (2) by a central substrate part (31), and is connected from the substrate part (31) to the other part of the conductor (2). A pair of bent pieces (32a), (3
2b) are formed on the bent pieces (32a) and (32b), respectively, and inclined projection pieces (33) that gradually approach the conductor (2) and are inclined in a direction away from the substrate portion (31). And a conductor (2) is provided on the substrate portion (31).
Small holes (34) each having a size that allows the single wire (T) for which the coating has been removed to pass therethrough are formed at both positions sandwiching the wire.
An electric wire retaining member (3) made of an elastic hard metal material constitutes an electric wire connector (D) together with the electric conductor (2),
Each electric wire connector (D) is fixed to a plurality of electric wire insertion openings (1a) in the upper part of the case main body (1) made of an insulating material, and below each of the openings (1g) formed in the main body. The conductor (2) has one end
From the above to the other end, and the above-mentioned inclined projection piece
Each of the bent pieces (32a) and (32b) in which (33) is cut and raised
The part (35) and the downward extensions (3
A scored line that penetrates in the thickness direction between 6) and (36)
(37) and (37) intervene, whereby each part (3
Centralized wiring connector 5), characterized a configuration der Rukoto capable of elastically deformed respectively alone.