JPH0237670B2 - TASHINFURATSUTOKEEBURUYODENKIKONEKUTANODENSENFURIWAKESOCHI - Google Patents

Description

Detailed Description of the Invention (Industrial Field of Application) The present invention is used in the technical field of electrical connectors, particularly in a type in which each wire of a multi-core flat cable is distributed to the left and right and is pressure-contacted with a double row of pressure-welding pieces. The present invention relates to a device for sorting the electric wires before pressure welding in the electric connector.

(Prior Art and Problems) In response to recent demands for lighter, thinner, and smaller electronic equipment, multi-core flat cables with fine pitches have appeared. However, in conventional electrical connectors, the pitch between the pressure welding pieces cannot be made as narrow as the pitch of the above-mentioned multi-core flat cable. We have proposed an electrical connector in which each electric wire is divided and bent every other wire to the left and right at the front surface of the connector, and the wires are connected to two rows of pressure contact pieces.

However, the above multi-core flat cable
The pitch between each wire is extremely small, and even if there is only every other wire, the distance between them is very narrow, and there are a large number of wires, so it would be time-consuming to sort the wires manually as in the past. However, there is also the problem that it is difficult to ensure bending accuracy, and it has been desired to develop a device that can automatically perform this bending process.

(Means and effects for solving the problems) The present invention solves the above problems by automatically cutting and bending each wire of a multi-core flat cable and storing it in an appropriate receiving groove of a connector. It is an object of the present invention to provide a wire sorting device for an electrical connector for a multi-core flat cable, which is capable of distributing wires.

In order to achieve the above object, the present invention provides a pressure welding side connector in which a plurality of pressure welding pieces each having a pressure welding groove that bites into the core wire of an electric wire protrudes from an insulating housing in double rows, and a pressure welding side connector that is coupled to the pressure welding side connector. preferably, a clamping member for extending and clamping the multi-core flat cable toward the crimp-side connector at a position corresponding to between the rows of the crimp pieces; A device for distributing and inserting electric wires into the grooves of the wiring side connector in an electrical connector comprising a wiring side connector having a pressure welding front surface having a groove for accommodating each electric wire bent after being separated into a pressure welding position with a piece. A pair of bases each having a cable mounting surface on the upper surface are arranged to face each other with a distance in the horizontal direction, and the wiring side connector is press-fitted at the upper opposite corner of one base with the front surface protruding toward the other base. a holding recess arranged such that the opposing surface of the other base forms a lower slide guide surface up to the upper edge, and above the other base is a virtual extension surface of the lower slide guide surface of the other base has an upper slide guide surface up to the lower edge, and is provided with a pressing member that clamps the cable between the cable mounting surface of the other base and the cable mounting surface of the other base. Between the pressure welding front surface, one surface slides on the lower slide guide surface, the other surface is close to the pressure welding front surface, and has a comb-shaped cutting and bending piece at a position corresponding to the pitch of the electric wire. A lower movable body is provided between the upper slide guide surface of the pressing member and the pressure contact front surface of the wiring side connector, one surface sliding on the upper slide guide surface and the other surface being close to the pressure contact front surface. The present invention includes an upper movable body having a cutting and bending piece that meshes with a cutting and bending piece of the lower movable body.

Next, wire distribution by the apparatus of the present invention configured as described above is performed in the following manner.

First, a multi-core flat cable in which the sheath is shifted in the direction of the wire to expose a predetermined length of the core wire, or the sheath of each wire is separated, is clamped by a wiring-side connector.

Next, the wiring side connector is held in the holding recess of one of the bases. Then, the exposed core wire portion or the separated portion between the sheaths extends from the wiring side connector and spans over the top surface of the other base.

In this state, when the pressing member is lowered, the extending flat cable is firmly clamped on the cable mounting surface.

After that, the movable body is lowered and the lower movable body is raised. Both movable bodies slide on the slide guide surface, cut the core wire or electric wire at the edge thereof, and gradually bend the core wire or electric wire and store it in the groove provided in the pressure-contacting front surface of the wiring side connector.

In this way, the wiring side connector is ready for pressure connection with the pressure welding side connector.

(Example) Hereinafter, an example of the present invention will be described based on the accompanying drawings.

FIG. 1 is a cutaway perspective view of the device of this embodiment when a wiring side connector is attached to the device. and the second
The figure is a longitudinal cross-sectional view.

In the figure, a pair of bases 50 and 80 are arranged opposite to each other with an interval in the lateral direction.

At the upper corner of the opposing surface of one base 50, there is an L
A holding recess 51 is formed in the shape of a letter, and a cable mounting surface 52 is formed on the upper surface of the base 50.
Above it is a cylinder 54 (second
A holding plate 53 is provided which presses down the cable 40 by moving up and down as shown in FIG. The presser plate 53 may also be of a type that opens with a spring.

The other base 80 has a cable mounting surface 81 on the top surface at the same level as the cable mounting surface 52 of the one base 50, and the edge portion of the cable mounting surface has a thickness approximately equivalent to the thickness of the cable sheathing. It is preferable that the fiber arrangement surface 81A is higher with a step corresponding to the height. The one base 5 of the other base 80
The surface facing 0 is a completely flat lower slide guide surface 83 up to the upper edge.

An upper movable body 70 is disposed above the base 80 and is moved up and down by a cylinder 74. The upper movable body 70 is provided with an angular recess 74 opening downward, into which an elastic force is applied by a compression spring 75. A receiving pressing member 76 is housed in a vertically slidable manner. The lower surface of the pressing member 76 serves as a pressing surface 77 that elastically clamps the core wire of the cable on the core wire arrangement surface 81A when descending. Further, the pressing member 76 has a completely flat upper slide guide surface 79 that extends to the lower edge of the virtual extension surface of the lower slide guide surface 83.
have.

From the upper movable member 70, there is a cut and bent piece 73, one side of which slides on the upper slide guide surface 79 and the other side of which is close to the pressure contact front surface 11 of the wiring side connector, which will be described later.
extends downward. On the other hand, a lower movable body 60 is disposed between the pair of bases 50 and 80 so as to be movable up and down by a cylinder 63. The lower movable body 60 has a cutting and bending piece 62 on the upper part, one side of which slides on the lower slide guide surface 83 of the other base 80, and the other side of which is brought close to the pressure contact front surface 11 of the wiring side connector. .

The cutting and bending pieces 73 of the upper movable body 70 and the cutting and bending pieces 62 of the lower movable body 60 have a comb-like shape that engages with each other at every pitch of each electric wire of the flat cable, and the upper and lower opposed The surfaces are slightly tapered so that they become wider apart toward one base.

Next, the wiring side connector 10 will be briefly explained. As shown in FIG.
10B, and grooves for holding the multi-core flat cable 40 are provided on the dividing surface. Furthermore, the contact surfaces of the two members are bent in a dogleg shape at the intermediate portion, so that the cable does not easily move when being clamped. In FIG. 1, the left side surface constitutes a press-contact front surface 11, in which grooves 14A and 14B are provided at upper and lower positions for accommodating every other electric wire. And the grooves 14A, 14
Grooves 15A and 14B are provided perpendicularly to B for receiving the pressure contact piece 30 (FIG. 4) of the pressure contact side connector.

Next, a procedure for sorting electric wires using the apparatus of this embodiment and then connecting the connectors by pressure connection will be explained.

In advance, the terminal of the multi-core flat cable 40 is
After making a cut in the insulation coating at the predetermined location using a cutting tool (not shown), the insulation coating is moved toward the terminal side to expose the core wire 41 at a predetermined interval. (See Figures 1 and 2).

Next, in the holding recess 51 of one base 50,
One member 10B of the wiring side connector is attached and held.

Next, the multi-core flat cable 40 prepared in is connected to one member 10B of the wiring side connector.
Place it on top. After that, the other member 10A of the wiring side connector is placed on top of it, and both members 1
Fix 0A and 10B and connect flat cable 40
to clamp. At this time, the flat cable is bent into a dogleg shape at the middle of the connector, thereby preventing it from coming off. Furthermore, the cylinder 54 is actuated to hold the flat cable 4 by the holding plate 53.
0 on the cable mounting surface 52 of one base to prevent the connector 10 from moving and the cable 40 from floating.

Thereafter, the vertical movable bodies 70, 60 are lowered and raised by the upper and lower cylinders 74, 63, respectively, at approximately the same time. Then, as shown in FIG. 3A, first, the pressing member 76 fixes the core wire 41 between it and the core wire arrangement surface 81A of the other base 80. At this time, since the pressing force is an elastic force by the spring 75, the core wire will not be compressed more than necessary and crushed or the like will not occur.

Further, when the vertically movable bodies 70, 60 move, the cutting and bending pieces 73, 62 of the two cut and bend the core wires 41 that come into contact with each other. Since this operation is performed in the same way in both cases, the upper cutting and bending piece 73 will be explained here. That is, when the upper movable body 70 descends, the cutting and bending piece 73 slides on the slide guide surface 79 of the pressing member 76, so the core wire 41 is moved by the cutting and bending piece 73 as shown in FIG. 3B. Then, it is cut at the lower edge of the slide guide surface 79, and then bent downward into an inverted L-shape by the lower surface of the cutting and bending piece 73, as shown in FIG. 3C. At this time, since the side opposite to the cut surface of the cut and bent piece 73 is close to the pressure contact front surface 11 of the wiring side connector 10, the bent core wire 41B is accommodated in the groove 14B of the connector. Such cutting and bending of the core wires is performed every other core wire by the comb-shaped cutting and bending pieces 73.

The cutting and bending of the core wires by the cutting and bending piece 73 described in 2.2 above is similarly performed by the cutting and bending piece 62 of the lower movable body 80, as shown in FIG. 3D, for every other remaining cable. It can be bent.

In this way, every other core wire is distributed vertically and prepared for pressure connection which is inserted into the upper and lower grooves of the pressure contact front surface 11 of the wiring side connector.

Finally, as shown in FIG. 4, the wiring-side connector 10 with the wires sorted is placed in the holding recess 91 of the press-contact holding stand 90, which is a separate device, while the holding pieces 101A, 101, which can be opened and closed,
The press-connecting side connector 20 is held by a holding tool 100 having B, and is lowered from above. Then, the pressure contact piece 30 of the pressure contact side connector is pressed into contact with each core wire of the wiring side connector bent at the corresponding position.

Although the present invention is as described above, when it is used, it is not necessary to expose the core wires of each electric wire of the multi-core flat cable. That is, if the sheathing of each electric wire is separated at a predetermined position of the multi-core flat cable before operating the device of the present invention, the separated wires with the sheath are cut and bent by the device of the present invention, and the wiring side Insert into each groove on the front surface of the connector. Therefore, when making a connection by pressure welding, the pressure contact piece of the pressure contact side connector, which is the opposite side, bites into the electric wire and the pressure contact is made.

(Effects of the Invention) As described above, the present invention makes it possible to sort and insert every other electric wire of a multi-core flat cable into the groove provided on the front surface of the insulation displacement connector on the wiring side. Because the pitch is narrow, sorting, which used to take a long time to do manually, becomes extremely efficient, and there is no distortion of the wires during sorting, eliminating problems with insulation displacement connections, improving work efficiency and product quality. This effect is achieved on both sides.

Moreover, as a device to obtain the above effect,
The structure is simple and inexpensive.

[Brief explanation of drawings]

FIG. 1 is a cutaway perspective view of the apparatus according to the embodiment of the present invention, FIG. 2 is a vertical sectional view of the apparatus shown in FIG. 1, FIGS. 3 A to D are views showing the steps in FIG. is the first
FIG. 4 is a cutaway perspective view of another device in use, which performs press-connection to wiring-side connectors into which electric wires have been sorted by the device. 10... Wiring side connector, 11... Pressure welding front,
20...Insulation side connector, 30...Insulation piece, 40
...Multi-core flat cable, 41... Core wire, 5
0;80...Base, 51...Holding recess, 52;
81... Cable placement surface, 60... Lower movable body,
62; 73... cut and bent piece, 70... upper movable body, 76... pressing member, 79... upper slide guide surface, 83... lower slide guide surface.

Claims (1)

[Scope of Claims] 1. A pressure welding side connector in which a plurality of pressure welding pieces each having a pressure welding groove that bites into the core wire of an electric wire are provided in double rows protruding from an insulating housing, and the above pressure welding pieces to be coupled with the pressure welding side connector. It has a clamping member that extends and clamps the multi-core flat cable toward the pressure welding side connector at a position corresponding to the rows of An electrical connector comprising: a wiring side connector having a pressure welding front surface having a groove for accommodating each electric wire bent after being separated; A pair of bases each having a cable mounting surface are arranged to face each other with a distance in the lateral direction, and the wiring side connector is press-fitted at the upper opposite corner of one base so that the front surface protrudes toward the other base. a retaining recess is provided for locating the opposite surface of the other base forming a lower slide guide surface up to the upper edge; The slide guide surface extends to the lower edge, and a pressing member is provided to clamp the cable between the cable mounting surface of the other base and the cable mounting surface of the other base when lowered, and the lower slide guide surface of the other base is press-connected to the front surface of the wiring side connector. A movable lower part is provided between the lower slide guide surface, one surface of which slides on the lower slide guide surface, the other surface of which is close to the pressure welding front surface, and which has a comb-shaped cutting and bending piece at a position corresponding to the pitch of the electric wire. A body is provided between the upper slide guide surface of the pressing member and the pressure contact front surface of the wiring side connector, one surface slides on the upper slide guide surface, the other surface is close to the pressure contact front surface, and the lower A wire sorting device for an electrical connector for a multi-core flat cable, comprising an upper movable body having a cutting and bending piece that engages with a cutting and bending piece of the movable body.