JP3308894B2 - Terminal - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a circuit which can be separated by inserting a separating piece into a pair of contact points which are arranged opposite to each other, for example, when a telephone line is switched, added, failed or otherwise required. The present invention relates to a terminal used for a cut type relay terminal plate or the like.

[0002]

2. Description of the Related Art Conventionally, the above-mentioned split type relay terminal plate has a strip-shaped plate portion having a wire clipping portion cut at its tip and a contact provided with spring properties at a fixed interval by a connecting plate at a lower end. And a terminal formed in a strip shape, a contact provided with a spring property at the tip thereof, and a terminal provided with a wire holding portion at the lower end are used. The two pairs of terminals are buried and held in a plurality of rows at fixed intervals in the width direction of the housing in a state where the contact portions are opposed to each other.

[0003]

However, the conventional pair of terminals described above, when assembled into a terminal plate, is difficult to always arrange at a fixed position, and is liable to cause contact blurring and to be shaped. Since the structure is different, two types of dies for pressing these are required. Further, the terminal formed by vertically arranging one strip-shaped plate portion and the contact is first pressed by a metal plate,
A band-shaped plate portion, a contact portion, a step of stamping and forming these connecting plates in a plane, and a band-shaped plate portion from both ends of the connecting plate;
The process of bending the contact part at right angles in the same direction and vertically arranging the strip-shaped plate part and the contact part at a certain interval is required, resulting in poor productivity and increased costs. there were.

[0004]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems of the conventional terminal, and can be incorporated in a fixed position of a terminal plate in a stable state. By punching and forming a plurality of wire holding portions, a connecting piece at the other end, a plurality of terminals of the same shape each having a contact portion on one side at a time in a state of being connected at a broken portion at the end, in a single step. It is another object of the present invention to provide a terminal capable of improving productivity and reducing cost.

[0005]

In order to achieve the above object, a terminal according to the present invention comprises a metal plate having a plurality of slits formed at regular intervals in the width direction thereof, and having a plurality of slits parallel to a lower end thereof, leaving an upper side portion. A plurality of terminals that are vertically arranged integrally by being cut in the vertical direction, and each of the terminals is cut and raised at a right angle from a central portion of a vertically long band-shaped plate portion to one side to provide a spring property. The two contact points are provided with a U-slit-shaped electric wire holding portion above the connecting piece at the lower end thereof, and the upper end of each of the electric wire holding portions is formed into a substantially inverted C-shaped opening on the front. In addition, a breakable portion is provided between the opening of each wire holding portion and the upper end of the plurality of slits, the breakable portion can be separated from the upper side of the metal plate by bending.

[0006]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a partially cutaway perspective view showing a state in which a plurality of terminals having the same shape are punched and arranged side by side in a state where they are connected at a broken portion at an end, FIG. 2 is a perspective view showing a single terminal, and FIG. FIG. 4 is a perspective view showing a usage example in which a terminal plate formed by burying and holding terminals is fixed to a support frame over a plurality of rows, and is partially cut away. FIG. 4 is a cross-sectional view of a part of FIG. It is an expanded longitudinal sectional view.

In FIG. 1, reference numeral 1 denotes a thin metal plate, 2 denotes terminals, and a plurality of terminals 2... It is punched out by a press in a state where it is connected to 1a, and is integrally juxtaposed.

As shown in FIGS. 1 and 2, the terminal 2 has a vertically long band-like plate portion 2a and is cut and raised at a right angle from a central portion of the band-like plate portion 2a to one side to provide a spring property. The two contacts 2b, 2b are vertically arranged integrally at regular intervals, and one end of the band-shaped plate portion 2a (the upper end in FIGS. 1 and 2).
In the center, U-slit-shaped electric wire holding portions 2c, 2c are arranged side by side, and at the center of the other end (the lower end in FIGS. 1 and 2) of the band-shaped plate portion 2a, the printed wiring shown in FIG. A connection piece 2d that is press-fitted into the substrate 4 and electrically connected thereto is integrally formed so as to protrude downward.

Further, the terminal 2 has left and right terminal insertion holes 6a, 6a formed in the housing 6 of the terminal plate 5 shown in FIG. A protrusion 2e is formed so that the terminal 2 is press-fitted and fixed with respect to the front end of the housing. Projecting pieces 2f, 2f are respectively provided so as to press-fit and fix the terminals 2 into the terminal inserting concave grooves 6b, 6b formed to be long to the lower end in communication with the terminal 6a.

As shown in FIG. 1, the plurality of terminals 2 having the above-described structure are provided on the metal plate 1 with a plurality of slits 7, 7 at regular intervals in the width direction (the left-right direction in FIG. 1).
Are cut in parallel to the lower end, leaving the upper side 1a, so that they are integrally arranged vertically.

As shown in FIG. 4, the narrow breaking portions 3, 3...
2c so that the insulated wire a can be easily pressed into the wire holding portion 2c.
The openings of c and 2c are cut into a substantially inverted C-shape on the front, so that the metal plate is located between the upper ends of the electric wire holding portions 2c and 2c and between the upper end of the electric wire holding portion 2c and the upper end of the slit 7 by bending. It is formed narrow so that it can be easily cut from the upper side 1a.

As shown in FIG. 1, a plurality of terminals 2... Punched and formed in one step are cut from the upper side 1a of the metal plate 1 by bending from the break portion 3, and as shown in FIG. A single terminal 2 is obtained.

As shown in FIGS. 3 and 4, a plurality of cuts 8,..., 9 for inserting the covered electric wire a are provided in the terminal plate 5 above the housing 6 at regular intervals in the width direction.
Are cut out in a plurality of rows, and two pairs of terminals 2 are press-fitted from the lower end of the housing 6 into the insertion concave grooves 6b, 6b and the insertion holes 6a, 6a on both right and left sides thereof. It is fixed, and the electric wire holding portions 2c, 2c of the terminals 2, 2 are disposed substantially at the center of the cuts 8, 9.

As shown in FIG. 4, a pair of terminals 2, 2 are formed in a recess
c, the contacts 2b and 2b are buried and held in the housing 6 as described above with the contacts 2b and 2b facing each other, and the connection pieces 2d and 2d at the lower ends are protruded downward from the lower ends of the recesses 6c by a required length. is there.

Further, as shown in FIG. 4, the insertion hole 11 of the cut piece 10 is formed in the center of the upper portion of the housing 6 of the terminal plate 5.
Is opened above the contacts 2b, 2b of the pair of terminals 2, 2 facing each other and is connected to the recess 6c. The cutting piece 11 is inserted from the insertion hole 11, and both contacts 2b, The circuit is isolated by releasing the contact of 2b.

As shown in FIGS. 3 and 4, the terminal plate 5 is placed on the upper surface of the printed wiring board 4 laid on the bottom plate 12a of the support plate 12, and the support plate 1 extends over a plurality of rows.
2, the terminal plate unit terminal A shown in FIG. 3 is configured.

As shown in FIG. 4, the terminals 2, 2 of each terminal board 5,... Are press-fitted into the printed wiring board 4 and electrically connected to each other. The contact portions 13 and 13 of the connector 14
Is formed.

3 and 4, reference numeral 16 denotes the terminal plate 5,
5 shows the alignment holes of the insulated wires a ... formed between the wires 5.

[0019]

According to the present invention, as described above, the two contacts are integrally formed by being cut and raised substantially at a right angle from the center of the strip-shaped plate portion. It is possible to dispose it in a stable state at the position, without causing contact blurring, and contributing to an improvement in commercial value. Also, since the bases of the two contacts are integrated,
Stress-stable holding of the cut pieces is possible.
Further, by punching a single metal plate, a plurality of terminals having contacts for circuit separation can be efficiently formed in one step, so that productivity is improved and costs are reduced. Therefore,
By using the terminal, a cut-off type relay terminal plate can be manufactured at low cost. Furthermore, an inverted-C-shaped opening is formed at the upper end of each wire holding portion, and a broken portion is provided between each of the openings and the upper end of the slit. There is an advantage that the upper side of the metal piece can be easily cut by bending because the broken portion is formed narrower.

[Brief description of the drawings]

FIG. 1 is a partially cutaway perspective view showing an embodiment in which a plurality of terminals according to the present invention are formed by punching.

FIG. 2 is a perspective view showing the terminal.

FIG. 3 is a partially cutaway perspective view showing a terminal plate unit terminal formed by fixing a terminal plate formed by burying and holding the terminal in a support frame over a plurality of rows.

FIG. 4 is an enlarged vertical sectional view showing a part of the terminal plate unit terminal in FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Metal plate 1a Metal plate upper side 2 Terminal 2a Strip-shaped plate part 2b Contact 2c Electric wire clamping part 2d Connection piece 3 Break part 7 Slit

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-4-33273 (JP, A) JP-A-11-154570 (JP, A) JP-A-63-1287 (JP, A) JP-A-63-1988 245879 (JP, A) (58) Field surveyed (Int. Cl. ⁷ , DB name) H01R 9/03-11/32

Claims (1)

(57) [Claims] 1. A plurality of terminals, which are integrally and vertically arranged by cutting a plurality of slits at predetermined intervals in a width direction of a metal plate to a lower end thereof, leaving an upper side portion. Wherein each of the terminals has two contacts that are cut and raised at right angles from a central portion of a vertically long band-shaped plate portion to one side to provide a spring property,
A U-slit-shaped wire holding portion is provided above the connection portion, and a connection piece is provided at a lower end thereof. An upper end of each of the wire holding portions is formed in a substantially inverted C-shaped opening on the front, and each of the wire holding portions is held. A terminal provided between the opening of the portion and the upper end of the plurality of slits, the breaking portion being separable from the upper side of the metal plate by bending.