JPH0343758B2 - - Google Patents

Abstract

PURPOSE:To connect a cable and a connector in the pressure welding easily by positioning a locator on a flat cable, lowering the cable connector while pressing its both sides with pressing rollers, and pressing in the locator in an insulator. CONSTITUTION:A locator 13 is loaded on a core wire display of a flat cable 1 so that signal wires 2 and earthing wires 3 are inserted to plural U-shape grooves 18 and 19 respectively. After that, by rotating a handle 28 downward, a punch 22 is lowered, the locator 13 is depressed by the lower end surface of the pressing punch 23, and the locator 13 is pressed in an insulator 12 while maintaining the display core wire of the cable 1 to the responding U-shape grooves. In this case, the parts of coverages 4 at both sides of the connection of the cable 1 are pressed on the upper side of a cable loading table 32, and the core wire display is pulled to both sides and pressed in the insulator 12. Consequently, no error connection such as a connection of floating. up core wire to the neighboring contacts is generated, and a good pressure welding connection can be carried out.

Description

[Detailed Description of the Invention] [Summary] Regarding a pressure welding device for connecting a flat cable to a connector, the connector is connected to a flat cable for high-speed signal transmission in which signal lines and ground lines are regularly arranged at narrow pitches. The purpose of the present invention is to provide a pressure welding device for connecting a flat cable that can easily and accurately perform pressure welding connections, and includes an insulator holding member that holds an insulator upward;
The flat cable is placed on the insulator by a cable placement stand that places the flat cable on the insulator, a guide member that positions the locator so that the U-shaped groove faces downward on the flat cable, and a pair of pressing rollers. A punch part that descends while pressing both sides of the cable connection part and press-fits the locator into the insulator.

[Industrial application field]

The present invention is a flat cable for high-speed signal transmission.
It is a flat cable in which multiple cables are arranged in parallel, each having one ground wire on both sides of one signal wire.
Such flat cables, which are equipped with a main grounding wire, have emerged for the mounting and wiring of high-performance and miniaturized electronic equipment, and their connectors have contacts for connecting signal lines on the insulator. and contacts for connecting the ground line are planted alternately.

[Conventional technology]

FIG. 3 is a perspective view of the main parts of a conventional flat cable connector for high-speed signal transmission.

In FIG. 3, a flat cable 1 for high-speed signal transmission includes a plurality of signal wires 2, a plurality of ground wires 3 disposed on the left and right sides of each signal wire 2, and a plurality of signal wires 2 and ground wires 3. The flat cable 1 is covered with an insulating coating 4, and the insulating coating at the tip of the flat cable 1 to be connected to the connector is peeled off to expose the tip portions of each signal line 2 and ground wire 3.

In addition, in order to maintain the exposed arrangement spacing between the signal line 2 and the ground line 3, there is also a method of leaving the leading edge of the insulation coating 4 when peeling off the insulation coating.

The connector 5 includes an insulator 6, a plurality of contacts 7, and a grounding plate 8. Each signal line 2 is soldered to the opposing contact 7, and each grounding line 3 is connected to the opposite contact 7 by soldering.
is folded back from the base and connected to the ground plate 8 by soldering.

In this way, using solder, flat cable 1
The connector 5 that connects the flat cable 1 has the trouble of using a heating element when connecting the flat cable 1, making it difficult to improve work efficiency. Therefore, a connector with a new structure (Japanese Patent Application No. 61-210261) was invented in which a signal wire and a ground wire running along a locator plate made of an insulating material are sandwiched between U-shaped contact portions of contacts.

FIG. 4 is an exploded perspective view showing the schematic structure of the new connector, and FIG. 5 is a side sectional view thereof.

Insulating coating 4 at the tip in Figures 4 and 5.
A connector 11 for connecting a flat cable 1 having a portion 4a includes an insulator 12 made of an insulating material, a locator 13, and a cover 14.
Contacts 15 for signal line connection and contacts 16 for ground line connection are alternately implanted in contact 1.
A grounding terminal 17 is inserted to commonly connect the terminals 6 to 6.

The locator 13 has signal line insertion grooves 18 and ground line insertion grooves 19 alternately formed in a U-shape in side view.
When the locator 13 with the connecting part of the grounding wire 3 inserted therein is inserted into the insulator 12, the U-shaped connecting part of the contacts 15 and 16 made of springy metal connects to the locator via the signal wire 2 or the grounding wire 3. 13, the opposing signal line 2 and contact 15 and the ground line 3 and contact 16 are electrically connected by this insertion.

[Problem that the invention seeks to solve]

To connect the flat cable 1 to the connector 11, a plurality of signal wires 2 and a plurality of ground wires 3 are required.
After inserting into the grooves 18 and 19 of the locator 13,
The locator 13 must be inserted into the insulator 12, but since there was no device for this connection in the past, this was done manually, which was very cumbersome and caused the signal wire 2 and ground wire 3 to float up from the U-groove of the locator 13. There was a problem where it would not connect properly.

The present invention was created in view of the above problems, and
To provide a pressure welding device for connecting a flat cable, which can easily and accurately make a pressure weld connection between a flat cable for high-speed signal transmission in which signal lines and ground wires are regularly arranged at narrow pitches, and a connector. The purpose is to

[Means for solving problems]

The above problem is caused by the insulator holding member 35 that holds the insulator 12 upward, and the cable mounting table 32 that places the flat cable 1 on the insulator 12, as shown in FIGS. 1 and 2. , U-shaped grooves 18, 19 on the flat cable 1
The guide member 31 positions the locator 13 so that the locator 13 faces downward, and the pair of pressing rollers 24 lower the flat cable 1 while pressing both sides of the connection part, and the locator 13 is pressed against the insulator 12. The problem is solved by a flat cable pressure welding connecting device characterized by comprising: a punch portion 22 for press-fitting;

[Effect]

According to the above means, the locator is made of an insulating material and has a plurality of U-shaped grooves into which the signal line and ground line of a flat cable for high-speed signal transmission are inserted, and a plurality of locators connected to the signal line and the ground line. an insulator with a contact embedded therein, the U-shaped connection part of the contact sandwiches the locator via the signal wire and the ground wire, and the signal wire and the ground wire are connected to the connector electrically with the contact. The work of connecting cables is facilitated.

[Embodiment] A pressure welding device for flat cable connection according to an embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a side view schematically showing an apparatus according to an embodiment of the present invention, and FIG. 2 is a partially cutaway front view showing the punch portion and connector holding portion of FIG. 1.

In Figure 1, device 2 using a manual press
1 has a press punch 23 for pressing a locator and a pair of press rollers 24 provided on both sides thereof so as to be movable up and down with respect to the press punch 23. The punch section 22 can be moved up and down by a handle operation.
A connector holding section 30 for positioning and holding connectors and cables is fixed to the bed 25 at the bottom.

An arm 27 supported by a column 26 that stands upright on the bed 25 is provided with a drive shaft 29 that moves up and down with the rotation of a handle 28, and a base 22a of the punch portion 22 is fitted and fixed to the lower end of the drive shaft 29. .

A pressing punch 23 having a blade-shaped cross section for pressing the back surface of the locator 13 is integrally attached to the lower surface of the base 22a, and on both sides of the pressing punch 23, a pair of A pressing roller portion 24 is provided so as to be movable up and down relative to the pressing punch 23.

Next, as shown in the front view of FIG.
Explain 0.

The connector holding portion 30 holds the insulator 1 of the connector.
a guide member 31 having a guide groove 31a in which the insulator 12 of the connector and the left end of the locator 13 are inserted and positioned in the front-back direction (perpendicular to the paper surface), on a base 26 on which the lower surface of the connector 2 is placed;
A cable mounting table 32, on which the flat cable 1 is placed, has an upper surface that is approximately the same height as the upper surface of the inserted insulator 12, and a rail member that holds the insulator holding member 35 so as to be slidable left and right. 34 is fixed.

The rail member 34 is a plate-like member having a thickness in the direction perpendicular to the paper surface, and the insulator holding member 3 is provided in the dovetail groove 34a on the surface.
5 is inserted and held so that it can freely slide left and right. The insulator holding member 35 has a push pin 35a that is biased rightward by a spring or the like (not shown) and protrudes from the end surface to pinch the end of the inserted insulator 12.
is incorporated, and can be slid left and right depending on the length (number of poles) of the connector, and the tip of the knob 35a can be engaged with a detent hole on the surface of the rail member 35 to be positioned and fixed.

A procedure for pressure-connecting a flat cable to a connector using the device 21 configured as described above will be explained.

First, when inserting the insulator 12 of the connector into the central space of the cable mounting table 32 with the fitting part with the locator facing upward while guiding the end with the guide groove 31a of the guide member 31, the insulator 12 teeth,
The lower surface is in contact with the base 36, and both end surfaces are in contact with the holding member 3.
It is held and positioned by the push pin 35a of No. 5 and the bottom surface of the guide groove 31a.

Next, the flat cable 1, which has been prepared in advance so that the signal line 2 and the ground line 3 of the length corresponding to the connection part are exposed, is placed on the cable mounting table 32 while being approximately positioned using a positioning means (not shown). When placed, the exposed portions of the signal wire 2 and ground wire 3 become the insulator 1.
Located above 2.

Furthermore, while finely adjusting the longitudinal position of the locator 13 so that the signal wire 2 and ground wire 3 corresponding to the U-shaped grooves 18 and 19 are inserted, the core wire exposed portion of the flat cable 1 is Place it on top.

After setting as described above, when the handle 28 is rotated downward, the punch portion 22 descends, and the locator 13 pressed down by the lower end surface of the press punch 23
are press-fitted into the insulator 12 while holding the exposed core wires of the flat cable 1 in their corresponding U-shaped grooves.

At this time, the parts of the sheathing 4 on both sides of the connection part of the flat cable 1 are pressed against the upper surface of the cable mounting table 32 by the pressing rollers 24, 24, which are located on both sides of the pressing punch 23 and descend together, and are pressed with appropriate pressure. Since the core wire is held in place under pressure, the core wire exposed portion is forced into the insulator 12 while being pulled to both sides with an appropriate tension, which prevents errors such as the core wire coming up and connecting to adjacent contacts. A good pressure-welding connection can be obtained without any connection occurring.

〔Effect of the invention〕

As explained above, according to the present invention, in order to connect a flat cable for high-speed signal transmission, there is provided a locator made of an insulating material having a plurality of U-shaped grooves into which signal lines and grounding lines are inserted, and a locator for connecting a flat cable for high-speed signal transmission. and a plurality of contacts connected to a ground line, the U-shaped connection part of the contact sandwiching the locator via the signal line and the ground line, and the signal line is connected to the ground line without using solder.
This has the effect of making it easier to connect the flat cable to a new connector in which the ground wire is electrically connected to the contact.

[Brief explanation of drawings]

Fig. 1 is a side view schematically showing a device according to an embodiment of the present invention, Fig. 2 is a partially cutaway front view showing the punch part and connector holding part of Fig. 1, and Fig. 3 is a main part of a conventional connector. FIG. 4 is an exploded perspective view showing the schematic structure of the new connector, and FIG. 5 is a side sectional view of the connector shown in FIG. 4. In the figure, 1...flat cable, 2...signal line, 3...
...Grounding wire, 11...Connector, 12...Insulator,
13... Locator, 18, 19... U-shaped groove,
22...Punch portion, 23...Press punch, 24...
...Press roller portion, 24a...Press roller, 30...
...Connector holding part, 31... Guide member, 32...
...Cable mounting stand, 34...Rail member, 35...
...An insulator holding member, 35b...A push pin is shown.

Claims (1)

[Scope of Claims] 1. A plurality of U-shaped grooves 1 into which a plurality of regularly arranged signal lines 2 and ground lines 3 are respectively inserted.
A flat connector 11 that is connected to a connector 11 comprising an insulating locator 13 formed with wires 8 and 19 and an insulator 12 in which a plurality of contacts 15 and 16 connected to the signal wire 2 and the ground wire 3 are implanted. A device that connects the signal line 2 and ground line 3 of the cable 1, and a holding member 35 that holds the insulator 12 upward.
, a cable placement means stand 32 for placing the flat cable 1 on the insulator 12, the U-shaped groove 18 on the flat cable 1,
A guide member 31 positions the locator 13 so that the locator 19 faces downward, and a pair of pressing rollers 24 lower the locator 13 while pressing both sides of the connection part of the flat cable 1. A press-welding device for connecting a flat cable, comprising: a punch portion 22 for press-fitting the insulator 12 into the insulator 12.