JPH0739175Y2 - Wire connection device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to an improved creation of a wire connecting device, which is a so-called one-touch method, and is mainly used for telephone wiring.

[Conventional technology]

Conventionally, there are many electric wire connecting devices called a one-touch method that do not use a set screw.

[Problems to be solved by the device]

The conventional electric wire connecting device was devised to give resistance to movement of the electric wire inserted by the check blade having a strong spring property in the inserting direction. Therefore,
Although there is no problem as a single wire connecting device, the whole device cannot be made compact when connecting multiple electric wires, and also when connecting electric wires of different diameters. In the case of wiring used, there was a problem that it was difficult to use.

The present invention adopts the following means in order to solve the problems of the prior art as described above, to make the whole compact in size, and to have a functionally superior electric wire connecting device.

That is, the invention is a holder (A) made of an insulating material, an actuating piece (C) provided so as to be movable back and forth with respect to the holder, a terminal (E) housed in the holder, and a spring pressed against the terminal. (D), which sets the advancing direction of the operating piece to the pressing direction of the spring, and through which the electric wire (L) can pass from the head of the operating piece toward the contact end of the terminal and the spring. In the electric wire connecting device provided with the passage (C4), the spring (D) is formed into an S-shape composed of continuous upper and lower arc-shaped curved portions curved in opposite directions, and the upper curved portion (D1) end Is extended to a straight line portion (D3) that inclines downward toward the outside of the S-shape, and its end portion is used as a contact end portion, and on the other hand, the terminal (E) made of a conductive metal with high elasticity is projected on the holder. Flat surface that can be fitted onto (A4) In addition to providing a U-shaped bent part, the outside of the bent piece (E1) of this bent part is the contact part with the spring (D), and the ridge (A4) opens the U-shaped bent part of the terminal. It is characterized in that it has a tapered shape that narrows toward the portion.

〔Example〕

This embodiment comprises a holder (A), a cover plate (B), a pair of symmetrically shaped actuating pieces (C), two snuling (D) of the same shape, and a terminal (E).

The holder (A) is made of an insulating material, has a flat and rectangular main body, and has a pair of notches (A1) formed on one side so that the operating piece (C) described below can be housed therein.

Locking protrusions (A2) and (A3) for locking the pair of springs (D) corresponding to the mounting positions of the operating pieces are projected in a pair of symmetrical positions to form the mounting positions of the springs (D). .

A ridge (A4) of the terminal (E) shown below is formed at each of the mounting central positions, and the ridge narrows toward the open portion of the U-shaped bent portion of the externally fitted terminal. It has a tapered shape.

Further, a notch (A5) is formed on the peripheral edge of the holder to mold the terminal mounting position.

A locking hole (A6) is formed in the center of the holder (A).

The lid plate (B) to be framed by the holder (A) is made of the same material as that of the holder (A), and a locking protrusion (B1) is provided at the center of the inside.

The operating piece (C) has a push button (C1) with a knurled head molded in the upper part of the main body, and a tapered surface (C2) below the main body at a required angle (30 ° inside and outside) with respect to the axis of the main body. It is molded, and an overhang (C3) is formed on one side of the main body. The upper end surface of this overhang (C3) has the same height as the peripheral edge of the notch (A1) when the push button (C1) is exposed from the notch (A1). The wire guide groove (C4) provided on the overhang (C3) is located so that the mouth end faces the outside of the notch (A1), and the operating piece (C) does not protrude from the holder. Stopper (C
5) is molded, and the whole is molded with an insulating material, and a pair of the operating pieces are prepared in a symmetrical shape.

The spring (D) is made of a metal having a high spring property and has curved portions (D1) and (D2) formed in a plane S shape on both sides in an arc shape.
One end of the curved portion (D1) forms an angle of about 30 ° with respect to the center line of the spring (D) to extend and form the straight surface (D3).

Two springs (D) are prepared.

The terminal (E) is made of a conductive metal having a high elasticity and has a bent portion bent in a U-shape in a plan view.
One of the bent pieces (E1) of (1) and (E2) is bent in a crank shape (E3), and the tip becomes a terminal piece (E4).

Next, a pair of symmetrical operating pieces (C) and (C) are housed in the notches (A1) at the operating piece mounting positions of the holder (A),
The push button (C1) is exposed to the outside of the holder through the notch (A1), and the upper side of the overhang (C3) is located at the same height as the peripheral edge of the notch (A1).
The opening end of the wire guide groove (C4) faces the outside of the holder, and the stopper (C5) abuts the inner wall surface of the holder to prevent the operating piece (C) from jumping out of the holder.

S for each locking protrusion (A2), (A3) at the spring mounting position
The curved arcuate parts (D1) and (D2) of the letter-shaped spring (D) are fitted and locked, and the straight surface (D3) at the tip of one of the arcuate parts (D2) contacts the taper surface (C2) of the operating piece (C). Contact with each other to form the wire clamp.

In this case, two springs (D) having the same shape are prepared, and one spring is used in the opposite direction.

The ridge (A4) at the terminal mounting position is the bent piece (E) of the terminal (E).
Located between 1) and (E2), this ridge has a tapered shape that narrows toward the open part of the U-shaped bent part of the terminal, so that both bent pieces (E1), (E2 ), A gap (T), (T) is formed.

The crank-shaped bend (E3) is located in the notch (A5), and the terminal piece (E4) is provided outside the holder.

The arcuate curved portions (D2) of the spring (D) are pressed against both sides of the bent pieces (E1) and (E2) of the terminal (E),
The respective parts are assembled, and finally the cover plate (B) is covered, and at the same time, the locking projections (B1) are fitted and pressure-contacted with the locking holes (A6) to form the wire connecting device.

[Action]

Since this invention is configured as described above, the terminal piece (E4) is used by connecting it to the modular jack type equipment of the telephone line by connecting it, and when connecting the electric wire, it is attached to the notch (A1) of the holder. Electric wire (L) from the electric wire guide groove (C4)
Is inserted and clamped between the tapered surface (C2) of the operating piece (C) and the linear surface (D3) of the spring (D) against the spring pressure.

Then, at this time, if an electric wire having a diameter larger than that of the electric wire guide groove (C4) is inserted, the electric wire, together with the bent portion (D1) and the bent portion (D2) of the spring (D), strongly presses the bent piece of the terminal (E). , In this case, the gaps (T) and (T) are made between the bent pieces of the terminal and the protrusions (A4) by tapering the protrusions, so this gap serves as an escape for the spring, and a thick electric wire Even if is inserted, the resistance of the spring is not so great that it can be easily inserted.

As described above, the wire has the linear surface (D3) of the spring (D) pressed against the taper surface (C2) of the operating piece (D).
The inserted electric wire is not easily pulled out because spring pressure is applied in the pulling direction. Next, when pulling out the electric wire, when the push button (C1) of the operating piece (C) is pressed, the operating piece is pushed down against the spring pressure, and is therefore in contact with the straight surface (D3) of the spring (D). Since the tapered surface (C2) moves and the contact area between the two becomes small, the spring pressure on the wire straight surface decreases and the inserted wire can be easily pulled out.

Since the pushed down operation piece (C) is pushed down against the spring pressure of the spring (D), it can be easily returned to the old position by releasing it.

Although the above wire connecting device is for a double wire, a single wire connecting device can be easily made by allocating one operating piece and one spring.

In this case, the operating piece and the spring are common, but since it can be manufactured by slightly modifying the holder and the terminal, it is possible to easily find a single wire connecting device with compatible parts, and the wire connecting action is It is the same as the embodiment of the invention.

Further, since this device is flat and small, it is possible to stack a large number of these devices and use them as a block body, and a wiring device can be manufactured compactly.

[Advantage of the Invention] Since the present invention is configured as described above, firstly, in this case, when an electric wire having a diameter larger than that of the electric wire guide groove is inserted, the electric wire is bent together with the bending portion of the spring and the bending piece of the terminal. Press strongly, and in this case there is a gap between the bent piece of the terminal and the ridge by tapering the ridge, so this gap becomes the escape of the spring, and as in the embodiment Even when provided, even when a thick electric wire is inserted, it has an advantage that there is no great difference in insertion pressure from the case of a thin electric wire, and an electric wire connection device capable of connecting electric wires of different sizes is realized.

Secondly, the entire device can be constructed compactly, and is particularly effective as a branching device for telephone wiring.

Thirdly, a pair of symmetrically-shaped actuating pieces are attached, and a flat S-shaped spring with the terminal in the center is functionally pressure-contacted to one actuating piece and the terminal. Very convenient for assembly.

Fourthly, since the whole is made compact and has a flat shape, there is an advantage that a large number of them can be stacked and used as a block.

[Brief description of drawings]

The attached drawings show the electric wire connecting device of the present invention. Fig. 1 is a front view showing an internal mechanism with a cover plate removed, Fig. 2 is a front view of a holder, Fig. 3 is a side view of the same, and Fig. 4 is a cover. FIG. 5 is a front view of the plate, FIG. 5 is a partial view of the locking protrusion, FIG. 6 is a front view of the spring, FIG. 7 is a side view of the same as above, and FIG.
FIG. 9 is a side view showing the terminal piece. In addition, reference numeral (A) ... holder, (A1) ... notch,
(A2), (A3) ... Locking protrusion, (T) ... Taper,
(A4) ... ridge, (A5) ... notch, (A6) ... locking hole,
(B) ... Lid plate, (B1) ... Locking protrusion, (C) ... Actuating piece, (C1) ... Push button, (C2) ... Tapered surface, (C3) ...
… Overhang, (C4) …… Wire guide groove, (C5) …… Stopper, (D) …… Spring, (D1), (D2) …… Arc line curved part, (D3) …… Straight surface, ( E) …… Terminal, (E1),
(E2) …… Bending piece, (E3) …… Crank strip bending, (E4)
...... Terminal pieces

Claims (1)

[Scope of utility model registration request] 1. A holder (A) made of an insulating material, an operating piece (C) provided so as to be movable back and forth with respect to the holder,
It consists of a terminal (E) housed in a holder and a spring (D) that is pressed against this terminal. The advancing direction of the operating piece is set to the pressing direction of the spring, and the operating piece has a terminal from its head. In an electric wire connection device having an electric wire passage (C4) through which an electric wire (L) can pass, between the contact ends of the spring and the spring, a spring (D) is curved in opposite directions, and the upper and lower arc-shaped curved portions are curved. It has a continuous S-shape, and the end of the upper curved part (D1) is extended to the straight part (D3) of the S-shape that is inclined downward toward the outside to make that end a contact end. The terminal (E) made of rich conductive metal is provided with a flat U-shaped bent part that can be externally fitted to the ridge (A4) protruding from the holder, and the bent piece (E1) of this bent part is The outer side is the contact part with the spring (D), and the ridge (A4) is Wire connecting device being characterized in that a towards the open portion of the bent portion of the U-shaped child narrow in a tapered shape.