JP2582675Y2 - Wiring device for electrical connector - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a connection device for an electric connector, and more particularly to a connection device for an electric connector for transferring a plurality of coated electric wires of a multi-core cable one by one and connecting them to predetermined terminals of the electric connector.

[0002]

2. Description of the Related Art In a system such as a personal computer, a harness in which electric connectors are connected to both ends of a multi-core cable is used to connect a computer main body and peripheral devices. An apparatus for manufacturing this harness is disclosed in, for example, JP-A-3-216980, JP-A-4-7117.
No. 8 and other publications. These devices include an electric wire alignment means for aligning a large number of coated electric wires exposed from one end of a multi-core cable in a row, and an electric wire for transferring the electric wires sent one by one from the electric wire alignment means to a predetermined position of an electric connector. And a connection means for connecting the transferred electric wire to the electrical connector.

[0003]

[Problem to be Solved] The sheath of multi-core cable is P
It is generally made of VC (vinyl chloride). PVC
Has a predetermined hardness.
There is no problem in using a C-coated wire.

However, in recent years, in order to obtain a predetermined impedance required by the SCSI standard, electric wires having a flexible coating such as foamed polyethylene and foamed polypropylene have begun to be used. It has been found that the use of this flexible coated electric wire in a conventional connection device causes the following problems. That is, the rear end of a large number of electric wires arranged in a line in the conventional electric wire arranging means of the conventional connection device is generally pressed by a pusher driven by an air cylinder, but the air cylinder is restricted by the number of the arranged electric wires. But with a substantially constant force. When a large number of flexible covered electric wires are aligned, the pressing load by the air cylinder is reduced and transmitted to the electric wire at the tip of the electric wire group due to the frictional resistance of the electric wires and the member for guiding the electric wires. For this reason, the coating of the electric wire at the tip is less likely to be crushed. However, when a small number of covered wires are pressed as the wire feeding work progresses, the pressing load by the cylinder is transmitted without being reduced, so the coating of the wires at the tip of the wire group is crushed, and once the wire should be sent out one by one. However, there is a problem in that a plurality of sheets are sent out to the user.

In order to avoid this problem, it is conceivable to use an electric motor that controls the pressing load according to the amount of movement of the pusher instead of the air cylinder as the drive source. However, there is a problem that it is generally difficult to control the pressing load, or the structure becomes complicated if possible.

Accordingly, the present invention is directed to a connection apparatus for an electric connector which solves the above-mentioned problems, that is, an electric connector having an electric wire alignment means capable of reliably sending out a flexible coated electric wire one by one with a simple structure. It is intended to provide a connection device.

[0007]

SUMMARY OF THE INVENTION A wiring device for an electrical connector according to the present invention is a wire aligning means for aligning a plurality of coated wires exposed from one end of a multi-core cable in a row, and one wire from each of the wire aligning means. An electric connector connecting device for connecting the coated electric wire to a terminal corresponding to the coated electric wire of the electric connector, the electric wire aligning means including a wire transferring means for transferring the fed coated electric wire to a predetermined position. It is characterized by comprising a pressing member for pressing the aligned covered electric wires with a substantially constant force, and a spring member for changing the pressing force by the pressing member as the pressing member moves in the pressing direction.

[0008]

With the provision of a spring member which increases the bias in the direction opposite to the direction in which the pressing member moves in the pressing direction, the load by the pressing member is large when pressing a large number of aligned electric wires. And smaller when pressing a small number of aligned wires. Therefore, since the pressing load can be controlled in accordance with the number of the aligned electric wires, it is possible to reliably send out the electric wires having a particularly flexible coating one by one.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be described with reference to the accompanying drawings. FIG. 1 is a perspective view showing a main part of a first embodiment of a connection device for an electrical connector according to the present invention.

The connection apparatus 1 for an electric connector has an electric wire alignment means 10, an electric wire transfer means (not shown), and a connection means (not shown). The electric wire aligning means 10 is a guide for aligning a large number of coated electric wires 3 of the multi-core cable 2 in a line with the electric wires 3 interposed therebetween.
12 and a first pusher or pressing member 18 for pressing the rear end of the aligned electric wire 3. The pressing member 18 is driven by an air cylinder 16 having one end fixed to the base 20, and its rod 22
Mounted on the tip of The rod 22 is connected via a connecting portion 28 to a guide rod 26 whose sliding direction is regulated by the guide portion 24. Accordingly, the direction of movement of the first pusher 18 is restricted, and the first pusher 18 is prevented from being tilted left or right or upward due to contact with the electric wire 3.

A compression spring 30 is provided on the outer periphery of the guide rod 26 between the stopper 32 at one end of the guide rod 26 and one surface of the guide portion 24. This compression spring 30 is connected to the first pusher 18.
Has a function of urging the first pusher 18 in the opposite direction against the movement in the pressing direction. Although the compression spring 30 is not biased when a large number of the electric wires 3 are aligned as shown in the figure, when the feeding of the electric wires 3 progresses and the number of the electric wires 3 decreases, the first pusher 18 moves in the pressing direction. Accordingly, the spring 30 is compressed.
Due to this compression, the first pusher 18 is urged in a direction opposite to the traveling (pressing) direction. Since the pressing force by the air cylinder 16 is substantially constant, the force of the first pusher 18 pressing the electric wire 3 is reduced to the difference between the pressing force of the air cylinder 16 and the force in the opposite direction by the spring 30. Therefore, when the amount of movement of the first pusher 18 in the pressing direction increases, the amount of compression of the spring 30 increases, and the force pressing the electric wire 3 decreases. Thereby, when the number of the electric wires 3 aligned in the guide 12 is small, the electric wires 3 are surely sent out one by one without being pressed by excessive force.

In a specific embodiment of the spring 30, the following values are provided. 1kgf 50 wires 3 aligned in guide 12
Pressure, and when there are two remaining electric wires 3, it is pressed with a force of 0.25 kgf. Assuming that the distance from the leading wire 3 to the trailing wire 3 of the 50 wires 3 is 39 mm, and the distance between the remaining two wires 3 is 1.5 mm, the spring constant is about 0.
It is clear that a 02kgf / mm spring should be used. More specifically, outer diameter 10.4mm, inner diameter 9.2mm, wire diameter 0.6mm, free length
A spring 30 of 100 mm and 23.5 turns is optimal in this case.
If the set value is different from the above example, it goes without saying that the optimum value of the spring 30 should be selected in accordance with the set value.

Next, the operation of the electrical connector connection device 1 including the electric wire alignment means 10 will be briefly described. Guide 12
Thus, the wires 3 aligned in a row are pressed by the first pusher 18 toward the second pusher 42 provided on the distal end side of the guide 12 with a load corresponding to the amount of movement of the first pusher 18 from the illustrated position. You. The pressed wires 3 are sent out one by one by a second pusher 42 that moves in a direction orthogonal to the direction in which the wires 3 are aligned. The second pusher 42 is driven by an air cylinder 46 fixed on a base 44, and a step portion 40 for accommodating one electric wire 3 is formed at the tip of the second pusher 42. One electric wire 3 sent out by the second pusher 42
The wire is identified by a wire number while being sent out, is gripped by a chuck (not shown) constituting an electric wire transfer means, transferred to a connection means (not shown), and connected to a connector. The operation after the second pusher 42 is described in Japanese Patent Application Laid-Open No. 4-71178.
This is the same as that described in Japanese Patent Application Publication No.

FIG. 2 is a partially cutaway perspective view showing a second embodiment of the electrical connector connecting device of the present invention. The electric wires 3 aligned in a line by the guide 112 are pushed by a pusher (pressing member) 118 driven by an air cylinder 116.
As a result, it is pressed toward the delivery rotor 142. One end 132 of a table 120 supporting an air cylinder 116 and a pusher 118
The rear end is connected by a tension spring 130. The tension spring 130 biases the pusher 118 in a direction against the movement of the pusher 118 in the pressing direction. Therefore, guide 11
The force for pressing the electric wires 3 can be controlled in accordance with the number of the electric wires 3 arranged in the inside 2, and the electric wires 3 are surely sent out one by one to the rotor 142 and transferred to the chuck 150 constituting the electric wire transfer means. be able to. The electric wire 3 transferred by the chuck 150 is connected to a predetermined position of the electric connector 4 by connection means 160. The overall configuration and operation of the connection device 101 according to the second embodiment are described in Japanese Patent Application No. 3-329628.
See issue specification.

Although the preferred embodiment of the connection apparatus for an electrical connector according to the present invention has been described above, the present invention is not limited to the above-described embodiment, and can be modified and changed as needed. For example, in the first embodiment, a table 20 is used instead of the compression spring.
A tension spring may be provided between one end of the connecting member and the connecting portion.
Further, the covered wire to be applied is not limited to a foam-based flexible covered wire, and may be an ordinary covered wire such as PVC.

[0016]

According to the present invention, a spring member is provided for urging the pressing member in a direction opposite to the pressing direction in accordance with the movement of the pressing member in the pressing direction. Can be controlled. Therefore, it is possible to reliably send out the wires each having a particularly flexible covering one by one. Moreover, since only the spring member is added to obtain this function, there is an advantage that the above function can be obtained with a simple configuration without significantly increasing the manufacturing cost of the entire connection device.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a main part of a first embodiment of a connection device for an electrical connector according to the present invention.

FIG. 2 is a partially cutaway perspective view showing the second embodiment of the electrical connector connection device of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1, 101 Wiring device for electric connector 2 Multi-core cable 3 Insulated wire 10, 110 Wire alignment means 18, 118 Pressing member 30, 130 Spring member 150 Wire transfer means 160 Connection means

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-3-216980 (JP, A) JP-A-4-71178 (JP, A) JP-A-7-42075 (JP, U) 45146 (JP, B2) (58) Fields investigated (Int. Cl. ⁶ , DB name) H02G 1/14 H01R 43/00

Claims (1)

(57) [Scope of request for utility model registration] 1. An electric wire aligning means for aligning a plurality of coated electric wires exposed from one end of a multi-core cable in a line, and an electric wire transfer for transferring the coated electric wires sent one by one from the electric wire aligning device to a predetermined position. Means for connecting the covered electric wire to a terminal corresponding to the covered electric wire of the electric connector, wherein the electric wire alignment means presses the covered electric wires aligned in a line with a substantially constant force. A connection device for an electrical connector, comprising: a member; and a spring member that changes a pressing force of the pressing member as the pressing member moves in a pressing direction.