JPH0119330Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a terminal device for connecting electric wires.

[Conventional technology]

6 to 8 show a conventional example, which is a terminal device attached to a ballast 1. FIG. The terminal 2 is made by bending a thin conductive metal plate into a substantially U-shape and attaching a mounting piece 12 to one end.
are extended, and the first and second connection pieces 3 of the U-shaped portion are connected to each other.
4 is formed with an opening 6 which extends from the bottom piece 5 and whose width narrows from wide to tapered, and a slit 7 which continues behind the opening 6, and is attached to the inside of the terminal box 14 which is the base body. The connection of the electric wire 8 is the electric wire 8
The cover 10 is inserted into the opening 6 astride both parallel pieces while the cover is still covered, and the tapered side 9 of the opening 6 allows the cover 10 to be inserted.
The core wire 11 is held in the slit 7 by breaking the wire and press-fitting it into the slit 7.

[Problem that the invention attempts to solve]

However, in such a conventional terminal device, since the terminal 2 is bent into a substantially U-shape, a large installation space is required, and there is a problem that the size of the terminal device becomes large and cannot be miniaturized.

[Means for solving problems]

The present invention was devised in view of the above problems, and the terminal device according to the present invention has a first connection piece and a second connection piece.
and a connecting piece from the tip of the first connecting piece to the second connecting piece.
The two connecting pieces are connected by a curved part that protrudes in an arc shape on one side of the connecting piece so as to be brought into close contact with each other, and an opening that continues from the curved part and has a narrow width for breaking the coating of the electric wire, and an electric wire is placed in the back of the opening. A terminal is provided with a slit for holding the core wire, and a terminal receiving part is provided to support the lower part of the curved part of the terminal, and an electric wire pulling groove for passing the electric wire connected to the terminal is provided in the terminal receiving part and the slit of the terminal. It consists of a base body provided adjacently.

〔Example〕

1 to 3 show a first embodiment of the present invention, in which a first connecting piece 3 is provided by being bent approximately perpendicularly from the mounting piece 12, and the tip of the first connecting piece 3 is provided with a circular shape. An arcuate curved portion 13 is provided, and a second connection piece 4 is provided from the tip thereof in substantially close contact with the first connection piece 3, and the first connection piece 3 and the second connection piece 4 are A wide and tapered opening 6 continuous from the curved portion 13 and a slit 7 continuous at the back thereof are formed in correspondence with each other. The curved portion 13 is formed in a smooth arc shape from the tip of the first connecting piece 3 toward the second connecting piece 4 side. That is, the curved portion 13 is curved in an arc shape only toward the second connecting piece 4 side.

As shown in FIG. 1, such a terminal has a lower part of a curved part 13 attached to a terminal box 14, which is an insulating base of the ballast 1, and a step part 15, which is a terminal receiving part, formed on the wall surface of the terminal box 14. It is supported by A wire lead-out groove 16 is formed on the wall surface of the terminal box 14 adjacent to the slit 7 of the terminal 2 and divides the stepped portion 15 into two, so that the wire connected to the terminal 2 can be pulled out from the terminal device. .

In the above-mentioned embodiment, the electric wire is connected as in the conventional example by inserting the wire with the covering into the opening 6, breaking the covering at the tapered side 9 of the opening 6, and then press-fitting the core wire into the slit 7. This is done by holding it in place.

Furthermore, FIGS. 4 and 5 show terminals of other embodiments of the present invention, and the second connecting piece 4 in the embodiment
The vicinity of the side 9 of the opening 6 is removed, that is, the second
While retracting the connecting piece 4 from the opening 6,
The tapered side 9 of the opening 6 of the connecting piece 3 is advanced to the tip of the first connecting piece 3. However, in order to connect the wire, insert it into the opening 6 with the covering intact, and then
The coating is broken by the tapered side 9 of the opening 6 of the connecting piece 3, and the core wire is press-fitted into the slit 7 of both the first and second connecting pieces 3, 4, and the wire is clamped and connected.

In this embodiment, the breaking side 9 is provided only on the first connecting piece 3, and the second connecting piece 4 is retracted, so that the sheath of the wire can be easily broken, and this retracting makes it possible to Using the difference in height between the connecting piece 3 and the second connecting piece 4, the curved part 13 is formed by smoothly curving in an arc shape from the first connecting piece 3 toward the second connecting piece 4. breakage of the material due to bending,
This prevents cracks and at the same time reduces the overall height of the terminal.

In such a terminal device, terminal 2 is the first
The connecting piece 3 and the second connecting piece 4 are folded back and placed in close contact with each other, making it extremely compact.
The folded portion is provided with a curved portion 13, and even if the terminal material is made of phosphor bronze, cracking is unlikely to occur due to folding. Part 1
5, it is possible to prevent the terminal 2 from buckling and falling down due to the wire pressure input when the wire is connected.
In addition, the stepped portion 15 serves as a guide when attaching the terminal 2 to the terminal box 14, improving the assembly workability of the terminal device, improving the positioning accuracy of the terminal 2, and preventing defects during automatic wire press-fitting. decreases. Also, curved part 1
3 protrudes only on the second connecting piece 4 side of the terminal 2, and when press-fitting the wire, the press-fitting jig can be brought into close contact with the first connecting piece 3 of the terminal 2, so that the curved part is not exposed to the outside of both connecting pieces. Unlike when the wire protrudes in the opposite direction, the wire does not bend and cannot be pressed into the slit sufficiently, and the wire can be connected reliably. Since the terminal 15 is located on the second connection piece 4 side, the terminal 2 is prevented from falling down when the wire is press-fitted. Further, even if tension is applied to the electric wire connected to the terminal 2, there is a stepped portion 15 on the lead-out side of the electric wire, and the stepped portion 15 prevents the terminal 2 from falling down.

[Effect of idea]

According to the present invention, the terminal has an extremely compact configuration in which the first connecting piece and the second connecting piece are folded back and placed in close contact with each other, and the terminal is formed from the tip of the first connecting piece to one side of the second connecting piece. The curved portion protrudes in an arc shape and is folded to connect both connection pieces. Even with terminal materials such as phosphor bronze, cracking due to folding does not easily occur, and the curved portion protrudes only on one side of the second connection. The lower part is supported by the terminal holder, which ensures secure press-in of the wire and prevents the terminal from falling even when the wire is pressed in or when tension is applied to the wire connected to the terminal, and the terminal holder acts as a guide when inserting the terminal. This improves assembly workability, improves terminal positioning accuracy, and prevents defects during automatic wire insertion.

[Brief explanation of the drawing]

Figures 1 to 3 show an embodiment of the present invention; Figure 1 is a front view of the terminal installed on a ballast, Figure 2 is a perspective view of the terminal, and Figure 3 is a front view of the terminal. It is. 4 and 5 show other embodiments of the present invention, FIG. 4 being a perspective view of the terminal, and FIG. 5 being a side view of the terminal. 6 to 8 show conventional examples of the present invention, and FIG.
The figure is a front view of the terminal attached to the ballast, FIG. 7 is a perspective view of the terminal, and FIG. 8 is a side view of the terminal. 2...Terminal, 3...First connection piece, 4...Second connection piece, 6...Opening, 7...Slit, 9...Side side, 13...
Curved portion, 14...Terminal box, 15...Stepped portion, 16...Wire pull-out groove.

Claims (1)

[Scope of utility model registration request] It has a first connection piece and a second connection piece, and connects both connection pieces with a curved part protruding in an arc shape from the tip of the first connection piece to one side of the second connection so that they are brought into substantially close contact with each other, A terminal in which both connecting pieces are provided with an opening that continues from the curved part and has a narrow width for breaking the coating of the electric wire, and a slit for holding the core wire of the electric wire at the back of the opening, and a terminal that supports the lower part of the curved part of the terminal. What is claimed is: 1. A terminal device comprising a base body provided with a receiving portion and a wire lead-out groove for passing an electric wire connected to the terminal adjacent to the terminal receiving portion and the slit of the terminal.