JPH03250566A - Connector for electric wire branch - Google Patents

Abstract

PURPOSE:To eliminate processes to cut the main electric wire at the branch point or to remove the insulator by accommodating main wires in grooves, holding them fast by a holding member, and only thereby attaining the connected condition of the main wires with a branch wire connecting terminal. CONSTITUTION:A branch connector is installed in place by screw through utilization of a hole 37. A holding member 4 is opened, and main electric wires 14-16 are on the midway accommodated in grooves 1-3 followed by shutting. When the holding member 4 is pressed, each needle 32 corresponding to main wire plunges to reach the groove bottom, and the main wire and needle 32 are put in electric connection. Then a screw 23 is driven, and fixation is made in the condition that the holding member 4 presses the main wires, and at the same time the body 12 is secured to the mounting surface. The end covering is removed from a branch wire 39, which is inserted through an opening 31 and located in a gap (e). In the case the branch wire 39 is a stranded, wire an operating part 30 is pushed to open the gap (e), and the wire is inserted followed by releasing off. The wire 39 does not easily slip off owing to a boss 26. In the case of a solid wire, it does not slip off when only inserted.

Description

[Detailed Description of the Invention] [Industrial Application Field] This invention is used when branching another branch wire from the middle of a main wire of the type in which stranded wires consisting of a large number of thin copper wires are coated with insulation. Regarding electric wire branch connectors.

[Conventional technology]

Conventionally, terminal blocks have been used to branch out branch lines from a main power line, for example, when power is supplied to multiple devices from one power line. The terminal block is on an insulating board,
The metal pieces are fixed independently, and the ends of the electric wires are screwed to both ends of each metal piece. The ends of the wires to be screwed are generally treated by caulking a metal fitting having a hole through which the screw is inserted. In other words, the main wire is once cut at the terminal block, the end insulation of each cut end is removed, and the metal fittings that were connected before cutting are crimped together, and the screws of the metal fittings are tightened. The 0-branch electric wire that is screwed to the terminal block using the insertion hole has a metal fitting similar to the metal fitting described above caulked to one end,
It is screwed to the terminal block using the screw insertion hole of the metal fitting.

[Problem to be solved by the invention]

The terminal processing of electric wires is carried out using a special hand tool, but this terminal processing and screwing work to the terminal block is not necessarily easy when the quantity is large. When several motors are installed in the frame, the motors are connected in parallel to the main wires provided along the frame, and the number of terminals of the main wires becomes very large, and the number of screws is also increased.

Furthermore, cutting the main electric wire is an important point in the work because if the length is not appropriate, there will be slack parts or connections will not be possible.

An object of the present invention is to provide an electric wire branch connector that can be connected to a branch line without performing the above-described cutting or terminal treatment of the main electric wire.

[Means to solve the problem]

This invention provides a main electric wire holding groove provided in a main body formed of an insulating material so as to accommodate the middle of each main electric wire depending on the number of one or more main electric wires, and a holding member provided to press the main electric wire passing through the covering groove from the opening side toward the bottom side of the groove; and a locking member provided to maintain the main electric wire in a pressed state by the holding member. means, branch wire connection terminal portions provided on the main body corresponding to the number of grooves, one end of which is sharply formed to protrude into the groove from the bottom of the groove, and the other end of which reaches the branch wire connection terminal portion; and electrical connection members provided on the main body separately corresponding to the grooves.

[For production]

When the middle of the main wire is placed in the groove and held down by the holding member, one tip of the electrical connection member protruding from the bottom of the groove will pierce the main wire, pass through the insulation coating, and enter the stranded wire inside. The main wire and the electrical connection member are electrically connected. When one end of the branch electric wire is connected to the branch electric wire connection terminal portion, the main electric wire and the branch electric wire are connected.

〔Example〕

An embodiment of the present invention will be described with reference to the drawings. In this embodiment, branch wires are connected to three main wires, respectively. In Figure 0, 1, 2.3 are main wire holding grooves, 4 is a holding member, 5 is a locking means, 6.7.8 9.1O111 is a branch electric wire connection terminal portion and an electrical connection member. These are formed on the main body 12 or assembled as separate parts.The main body 12 is made of plastic and has a substantially rectangular plate-like part, and has main wire holding grooves 1, 2.3 and a holding member on one side. 4 and a branch wire connection terminal portion 6.7.8, and the other surface is a mounting surface.

As shown in FIG. 2(a), three main wire holding grooves 1.2.3 are provided in parallel in the lateral direction, and each boundary is a convex strip. This groove l, 2.3 is the main wire 14.15
．． It is formed to have a width approximately equal to the outer diameter of No. 16 and a depth slightly smaller than the outer diameter dimension.

The holding member 4 is made of plastic and has the grooves l and 2.
．． It is a plate-shaped member large enough to cover the opening side of the plate-shaped part 1.2.3, and an engaging part 18.18 that engages with the fulcrum projection 17.17 is provided on both sides of the plate-shaped part. Projecting portions 19, 20, and 21 corresponding to the respective grooves are provided on the surface facing the grooves. The fulcrum protrusion 17.17 is formed coaxially and axially protruding from the outer surface of the bulged portion of the main body I2 so as to house the terminal portion 6°7.8, and the engaging portion 18 corresponds to this. This allows the holding member 4 to rotate around the fulcrum projection 17.17 to open and close the grooves 1 and 2.3.

The locking means 5 holds the holding member 4 on the side that covers the groove 1.2.3.
In other words, it locks in the closed state, and consists of screw holes 22 and 22 for mounting and tightening, which are drilled through the presser member 4 and the main body 12 in the closed state, as shown in Fig. 3 when in use. When the screw 23 is inserted and screwed into the wall surface as shown, the fulcrum projection 17
．． 17 and the side of the retaining part 18.18 for a locking effect.

The branch wire connection terminal parts 6.7.8 all have the same structure, and as shown in the terminal part 7 in FIG. Part 2
It consists of 5. The pressing member 23 is made of plastic, and a metal piece 27 having a projection 26 to prevent removal is attached to the surface facing the end 25. This pressing member 23
A stepped operating portion 30 is housed in the main body, contacts the main body side slope 29 at the slope 28, and protrudes from the surface of the main body. The coil spring 24 is connected to the pressing member 23 and the electrical connection member 10 described later.
It is arranged so as to be slightly bent between the two, and presses the operating part 30 in the protruding direction and in the direction toward the slope 29. As a result, when the pressing member 23 pushes the operating section 30 and is moved into a recessed position, the pressing member 23 moves along the slope 29, the gap e between the end portion 25 and the metal piece 27 widens, and when released, it returns to the original state shown in the figure. An opening 31 is provided on the outer surface of the main body 12 to insert the end of the branch wire into the gap e.

The electrical connection members 9, 10, and 11 are similar although the lengths are partially different, and are made by punching a metal plate into long and thin pieces, as shown in FIGS. 1(g) and 1(h). It is bent and installed in the main body 12. An end 25 on the terminal side of the connecting member 10 forms a terminal part 7 along the inner surface of the main body 12, the other end is bent midway to support one end of the coil spring 24, and the other end is attached to the inner surface of the main body 12. Groove 2 through the groove bottom wall
It protrudes inward and is formed into a triangular shape with a pointed tip to form a needle-like portion 32. Within the groove 2, the thickness direction of the connecting member IO coincides with the groove width direction. The amount of protrusion is greater than or equal to the radius and less than the diameter of the main wire. The other connecting members 9 and 11 are not shown in their entirety, but as can be seen in FIG. It stands out. The member 9 has reached the terminal portion 6, the member 11 has reached the terminal portion 8, and the grooves 33, 34, 35 shown in FIG. Reference numeral 36 in the drawing indicates a back cover, and the main body 1O is fitted into a recess on the front side, pressing each of the connecting members 9, 10, and 11. 37 is a mounting screw insertion hole.

To use the wire branch connector constructed in this way, install the screws in the desired position using the mounting screw insertion holes 37 and 37 in 3 days, and then leave the holding member 4 in the open state as shown in Fig. 2. , 1!1.2.3 along the main power line 14.15.16
The holding member 4 is placed in the closed state as shown in FIG. At this time, the main electric wires 14, 15, and 16 are initially slightly pierced by the tip of the needle-shaped portion 32, but when the operator presses the holding member 4 with his/her hand, the main electric wires 14, 15, and 16 are pierced.
15 and 16 are pierced by each corresponding needle-shaped portion 32 and reach the groove bottom. As a result, each of the main electric wires 14, 15, 16 is electrically connected to the corresponding needle-shaped portion 32. When the sixth screw 23 is screwed in, as shown in FIG. As shown in FIG. 3, all three six-branch electric wires 39, which are fixed in a pressed state against the wires 15 and 16 and which also securely fix the main body 12 to the mounting surface, have their end coatings removed. If the 0-branch electric wire 39 inserted through the opening 31 and positioned within the gap e is a stranded wire, it is preferable to press the operation part 30 to open the gap e, insert it, and then release it. If the branch wire 39 is a single wire, it can be installed by simply inserting it, and the main wire 14 of 3 trees will not come off easily.
．． 15 and 16 are individually connected to the corresponding branch wires 39 via electrical connection members 9.1O111.

In the above embodiment, three main electric wires 14, 15, and 16 are branched and connected, but the number can be changed from one to several as necessary.

In the above embodiments, the branch wire connection terminal portion is of a plug-in type, but may be of a screw type depending on the case.

In the above embodiment, the holding member 4 is fixed in a pressed state with a screw as a locking means, but in some cases, a holding part may be provided between it and the main body side and engaged by elastic deformation by a pressing operation. It may be fixed.

〔Effect of the invention〕

According to this invention, when connecting the branch electric wires to the main electric wire, each of the main electric wires is connected to the branch electric wire connection terminal by simply storing them in the groove and pressing and fixing them with the holding member.
There is an advantage that there is no need to cut the main wire at the branch portion and there is no need to remove the insulation coating. The branch position can be determined appropriately by simply adjusting the tension of the main wire to the desired tension according to the current situation and pressing the holding member. It also has the effect of not causing problems such as loosening or excessive tension.

[Brief explanation of drawings]

The figure shows an embodiment of the invention. Figure 1 shows the closed state of the presser member; a) is a front view, (b) is a side view, (C) is a top view, (d) is a bottom view, (e) is a rear view, and (f) is a (a
), (8) is an enlarged cross-sectional view of B-B in (a), (h) is a C-C cross-sectional view of (), and Figure 2 shows the open state of the presser member. a) is a front view, (b) is a side view, (
C) is a bottom view, and FIG. 3 is a bottom view of FIG. 1 (
It is a sectional view similar to g). 1.2.3... Main electric wire holding groove, 4... Holding member, 5... Locking means, 6.7.8... Branch electric wire connection terminal portion, 9.10. 11... Electrical connection member, 1
2... Main body. Tokimi (1) +al +b) (C1 cd+ (fn(el (9) th) [21(2) (h) th (2) (a) +b+ Fig.

Claims (2)

[Claims] (1) Main electric wire holding grooves are provided in the main body made of insulating material to accommodate the middle of each main electric wire, depending on the number of one or more main electric wires, and the grooves. A holding member provided to press the main electric wire passing through the covered groove from the opening side toward the bottom side of the groove, and a locking means provided so as to maintain the main electric wire in a state in which the holding member presses the main electric wire. and,
Branch electric wire connecting terminal portions are provided on the main body in correspondence with the number of grooves, and the grooves are formed so that one end thereof is sharply formed so as to protrude from the groove bottom into the groove and the other end reaches the branch electric wire connecting terminal portion. An electric wire branch connector characterized by comprising electrical connection members separately provided on the main body corresponding to the above. (2) In the electric wire branch connector according to claim (1),
The branch electric wire connection terminal portion includes an end clamping portion of the branch electric wire which is pressed by a spring with a pressing member facing the end of the electrical connection member within the main body, and an end portion of the branch electric wire between the clamping portions. An electric wire branch connector characterized by having an insertion opening opened on the outer surface of the main body so that the wire can be inserted.