JPS6224574A - Wire connection - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a wiring connection method between at least two conductors.

[Conventional technology]

Conventionally, there is a method of connecting lead wires using a sleeve tube, for example, as a method of connecting wires of this kind. That is,
The lead wires are connected to each other by inserting two lead wires into the sleeve pipe and crushing the sleeve pipe.

[Problem that the invention seeks to solve]

However, this method of connecting mating wires using a sleeve tube requires a special caulking tool to crush the sleeve tube, and the lead wires cannot be connected to each other unless this caulking tool is used. And so.

However, solder connection is the most common method that does not use a sleeve tube, but in any case, once the lead wires are connected to each other, this lead wire? It was impossible to disconnect them from each other without disconnecting them.

[Friendly means of solving problems]

The present invention has been made in view of these points, and includes compressing a spring formed in a substantially helical shape, and arranging the inner circumferential surface KFA1 and the second conductor of this spring.

The restoring force of this spring holds the first and second conductors under pressure.

[For production]

Therefore, according to the present invention, conductors can be connected to each other in a detachable manner.

〔Example〕

Hereinafter, the wiring connection method according to the present invention will be explained in detail. FIG. 2 is a side view showing an example of a spring used in this wiring connection method. This spring is a compression coil spring formed in a helical shape, and only the coils Ia and 1b at both ends thereof are formed to have a slightly larger inner diameter. Moreover, this spring 1 is wound with a predetermined number of turns, and coils 1 a at both ends,
The inner diameter of the coil excluding 1 bt is 2. It becomes.

The spring 1 formed in this way is used in principle as follows. That is, when this spring 1 is compressed and deformed, the inner diameter becomes Δ as shown in FIG.
It becomes 2. Needless to say, this g2 is larger than 21, and in this compressed and deformed state, the spring 1
As shown in Fig. 4, there is a lead on the inner circumferential surface of the /Insert and arrange the tips (conductive parts) of B2a and 2b.

Here, the outer diameters of the lead wires 2a and 2b are equal,
0+<σ, <2. It is assumed that there is a relationship between

After inserting and arranging the lead wires 2a and 2b, when the compressive force of the spring 1 is released, the spring 1 tries to restore its original shape until the inner diameter of the spring 1 is 0. trying to return to

At this time, the outer diameter 83 of the lead wires 2a and 2b is equal to the inner diameter 2. Since the lead wires 2a and 2b are thicker than the lead wires, the tips of the lead wires 2a and 2b are held under pressure by the restoring force of the spring 1, as shown in FIG. In this way, the lead wires 2a and 2b are connected to each other. Note that the lead wires 2a and 2b can be easily separated from each other by compressing and deforming the spring 1 again.

FIG. 5+S is a side sectional view showing an example of a wiring connector using this spring 1. In the figure, 3 is an insulating sleeve made of an insulating resin material, and 4 is a terminal bin. The terminal bin 4 is formed from a hollow cylindrical conductive member, and the spring 1 is fitted into the small diameter tip 4a. A part of the outer peripheral surface of the tip part 4a is cut out in a semicircular shape as shown in FIG. (spring 1 is loosely fitted. Coil 1 of spring 1
a is the side wall surface 4d of the large diameter portion 4d of the terminal pin 4, i
c are in contact with each other, and the coil 1b of the spring 1 is in contact with the insulating sleeve 3.
It is in contact with the side wall surface 3a of. The insulating sleeve 3 is slidably fitted into the tip 4a of the terminal pin 4. The distance L+1 between the side end surface 3a of the insulating sleeve 3 and the side wall surface 4d of the terminal pin 4, the natural length Ll of the spring 1 (second
The spring 1 is designed to be slightly shorter than that shown in FIG. 3, and therefore the spring 1 is in pressure contact with the side end surface 3a of the insulating sleeve 3 and the side wall surface 4d of the terminal bin 4. A flange 3a for preventing removal is formed on the side end surface 3a of the insulating sleeve 3, and abuts against the upper edge surface 4b2 of the notch 4b of the terminal pin 4.

Next, a method for connecting lead wires in the wiring connector configured as described above will be described. That is, in FIG. 5, the insulating sleeve 3t is pressed and slid in the direction of the arrow shown. This sliding movement of the insulating sleeve 3 presses and compresses the spring 1, and the inner diameter becomes Z.

open until Then, while maintaining this state, the lead wire 2aTh and the lead wire 2b are arranged from the right side in the figure and the lead wire 2b from the left side, respectively, on the inner peripheral surface of the spring 1. However.

When the pressing force on the insulating sleeve 3 is released, the insulating sleeve 3 returns to its original position, and at the same time, the tips of the IJ-wires 2a and 2b are brought into contact with the inner circumferential surface of the spring 1 and the inner circumferential bottom surface of the terminal pin 4. It is held under pressure in between. When the lead wires 2a and 2b are to be separated from each other, it can be done with one touch by pressing the insulating sleeve 3 again.

In the wiring connector configured in this way, the lead wire 2
a and 2b constitute the first and second conductors.

Note that the tip of the large diameter portion 4d of the terminal bin 4 may be shaped like a jack and used as a plug-in connector (in this case, the connection of the lead M2a is not necessary. At this time, the terminal bin 4 is connected to the first conductor). The lead wire 2b constitutes the second conductor.In addition, in Fig. 2, the coil 1a of the spring 1,
Although the inner diameter of 1b is made slightly larger than σ, it goes without saying that it may be made equal to σ.

Furthermore, the spring used in this connection method does not necessarily have to have the shape shown in FIG. 2. For example, a conical spring 5 as shown in FIG. By inserting the spring 5 into the inner circumferential surface and releasing the compressive force, the lead wires 2a to 2C are held under pressure by the restoring force, and the lead wires are connected to each other. Since the spring 5 is formed into a conical shape, it can reliably hold the lead wires under pressure, and can freely correspond to the number and connection state of the lead wires.

〔Effect of the invention〕

As explained above, according to the wiring connection method according to the present invention,
It is formed into a roughly spiral shape and compresses the spring.

The first and second conductors are arranged on the inner peripheral surface of this spring, and in order to ensure that the first and second conductors are held under pressure by the original force of this spring, do not use a caulking tool or the like. Conductors can be connected to each other with a single touch, and the connection can be canceled with a single touch without cutting the conductors.

[Brief explanation of drawings]

Fig. 1 is a side view 1w showing an embodiment of the wiring connection method according to the present invention, Fig. 2 is a side view showing a parne used in this connection method, and Fig. 3 is a side view showing the spring fully compressed. Fig. 4 is a side sectional view showing the state in which this spring is compressed and lead wires are inserted and arranged; Fig. 5 is a side sectional view showing an example of a wiring connector using this spring; FIG. 7 is an external perspective view showing the terminal pin used in this wiring connector, and FIG. 7 is a side view showing another example of the spring used in this connection method. 1.5...Spring, 2a-2c...φ・Lead f1.
3...Insulation sleeve, 4...Terminal bin. Patent applicant Tadao Totsuka Agent Kazu Yamakawa pIJ (ρ publication - 2 people) Figure 1 Figure 2. Figure 3 Figure 4 Figure 5 Figure 6 Figure 7

Claims (1)

[Claims] A spring formed in a substantially helical shape is compressed, first and second conductors are arranged on the inner peripheral surface of this spring, and the first and second conductors are held under pressure by the restoring force of this spring. A wiring connection method characterized by: