JPH01100882A - Pressure joining device for connecting flat cable - 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 present invention relates to a pressure welding device for connecting a connector 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 flat cables that can easily and accurately connect an insulator. A stand and
A guide member positions the locator so that the U-shaped groove faces downward on the flat cable, and a pair of pressing rollers press down on both sides of the connection part of the flat cable, pressing the locator into the insulator. It is comprised of a punch section.

[Industrial application field]

A flat cable for high-speed signal transmission is a flat cable in which a plurality of cables each having one grounding wire on both sides of one signal line are arranged in parallel.
．． Two ground wires are arranged between the signal wires with a pitch of 27 mm. , Such flat cables have emerged for the mounting and wiring of high-performance and miniaturized electronic equipment, and their connectors are made of insulators with contacts for connecting signal lines and contacts for connecting ground lines alternately embedded. It will be done.

[Conventional technology]

The third bar diagram 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 arranged on the left and right sides of each signal wire 2, and covers the signal wires 2 and the ground wire 3. The flat cable 1 is made of an insulating coating 4 and is connected to a connector by peeling off the insulating coating at the tip portion to expose the tip portions of each signal line 2 and ground wire 3.

In addition, in order to maintain the spacing between the displayed signal vA2 and the ground wire 3, there is also a method of leaving the most extreme part 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 ground plate 8. Each signal line 2 is soldered to the opposing contact 7, and each ground line 3 is folded back from the base and connected to the ground plate. It is soldered to 8.

As described above, the connector 5 that uses solder to connect the flat cable 1 has the trouble of using a heating body when connecting the flat cable 1, making it difficult to improve work efficiency. In Figures No. 2 and No. 3, a part 4a of the insulating coating 4 is attached to the tip of the new connector, in which the signal wire and ground wire along the locator plate are sandwiched between the U-shaped contact part of the contact. The connector 1 for connecting the flat cable 1 having the following properties is made of an insulating material! ! It includes an edge body 12, a locator 13, and a cover 14! i! ! ! Contacts 15 for signal line connection and contacts 16 for ground line connection are alternately implanted in the edge body 12, and a ground terminal 17 for commonly connecting the contacts 16 is inserted.

The locator 13 has a signal line insertion groove 18 that is U-shaped in side view.
and ground wire insertion grooves 19 are formed alternately, and when the locator 13 with the connection part of the signal line 2 inserted into the groove 18 and the connection part of the ground wire 3 inserted into the groove 19 is inserted into the insulator 12, Since the U-shaped connection parts of the contacts 15 and 16 made of springy metal sandwich the locator 13 via the signal vA2 or the ground line 3, the opposing signal line 2 and the contact 15, and the opposing ground line 3 and the contact 16 are , are electrically connected by the insertion.

[Problem that the invention seeks to solve]

To connect the flat cable 1 to the connector 11, connect multiple signal wires 2 and ground wires 3 to the locator 13.
After inserting the locator 13 into the grooves 18 and 19 of the insulator 12, the locator 13 is inserted into the insulator 12, but since there was no device for this connection in the past, this was done manually, which was very troublesome and required the signal vA2 and the ground wire. There was a problem in that the locator 3 sometimes rose from the U-groove of the locator 13 and was not properly connected.

The present invention has been created in view of the above-mentioned problems, and is designed to easily and accurately connect a connector 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 flat cables that is capable of connecting flat cables.

[Means for solving problems]

The above problem is solved by the insulator holding member (35) that holds the insulator (12) upward, and the flat cable (1) placed on the insulator (12), as shown in Figures 1 and 2. cable mounting stand (32), and 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, 24) lower the locator while pressing both sides of the connection part of the flat cable (1). The punch part (13) is press-fitted into the insulator (12) (
22) The problem is solved by a flat cable pressure welding connecting device characterized by comprising the following.

[For production]

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 respectively inserted, and a plurality of contacts connected to the signal line and the ground line. The U-shaped connection part of the contact sandwiches the locator via the signal wire and the ground wire, and the flat cable is connected to the connector where the signal wire and the ground wire are electrically connected to the contact. This simplifies the connection process.

〔Example〕

DESCRIPTION OF THE PREFERRED EMBODIMENTS A pressure welding device for connecting a flat cable 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 FIG. 1, a device 21 using a manual press includes a punch section 22 having a press punch 23 for pressing a locator and a pair of press roller sections 24 provided on both sides of the press punch 23 so as to be movable up and down with respect to the press punch 23. can be moved up and down by operating the handle, and a connector holding section 30 for positioning and holding connectors and cables is fixed to the bed 25 below the punch section 22.

An arm 27 supported by a post 26 standing 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 attached to the lower end of the drive shaft 29.
is inserted and fixed.

A pressure 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 a pair of pressure punches 23 having a blade-shaped cross section for pressing the back surface of the locator 13 are provided on both sides of the pressure bonder 23, and are urged downward by springs 24b. A pressing roller portion 24 is provided so as to be movable up and down relative to the pressing punch 23.

Next, the connector holding section 30 will be explained with reference to the front view of FIG.

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

The rail member 34 is a plate-like member having a thickness in the direction perpendicular to the plane of the paper, and holds an insulator holding member 35 inserted and held in a dovetail groove 34a on the surface so as to be slidable left and right. and insulator holding member 3
5 incorporates a push pin 35a that is urged rightward by a spring or the like (not shown) and protrudes from the end face to clamp the end of the inserted insulator 12. ), 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 The lower surface is in contact with the base 36,
Both end surfaces are the push pin 35a of the clamping member 35 and the guide groove 31.
It is held and positioned by the bottom surface of a.

Next, the flat cable l prepared in advance so that the signal wire 2 and the ground wire 3 of the length corresponding to the connection part are exposed is placed on the cable mounting table 32 while being approximately positioned by a positioning means (not shown). Then, exposed portions of the signal line 2 and ground line 3 are located on the insulator 12.

Furthermore, signal lines 2. corresponding to U-shaped 818 and 19. The locators 13 are inserted so that the ground wires 3 are respectively inserted.
is placed on the core wire exposing portion of the flat cable 1 while finely adjusting its longitudinal position.

As described above (after setting), when the handle 28 is rotated downward, the punch part 22 descends, and the locator 13 pressed down by the lower end surface of the press punch 23 is moved to the flat cable 1.
are press-fitted into the insulator 12 while holding the exposed core wires 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 roller parts 24 and 24 that are located on both sides of the pressing punch 23 and descend together, and the appropriate pressing force is applied. Since the core wire is held between the wires, the core wire exposed portion is press-fitted into the insulator 12 while being pulled to both sides with an appropriate tension, and erroneous connections such as the core wire lifting up and connecting to an adjacent contact will not occur. (A good pressure welding connection can be obtained.)

〔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 in which a plurality of U-shaped grooves are formed into which signal lines and grounding lines are inserted; A novel device that includes multiple contacts that connect to a ground wire, the U-shaped connection part of the contact sandwiching the locator via the signal wire and the ground wire, and the signal wire and the ground wire are electrically connected to the contact without using solder. This has the effect of making it easier to connect the flat cable to the connector.

[Brief explanation of the drawing]

Fig. 1 is a partially cutaway front view schematically showing a device according to an embodiment of the present invention, Fig. 3 is a perspective view of the main parts of a conventional connector, and Fig. 4 is an exploded perspective view showing the schematic configuration of a new connector. FIG. 5 is a side sectional view of the connector of FIG. 4. In the figure, ■ - flat cable, 2 - signal line, 3 - grounding wire, 11 - connector, 12 - insulator,
13--Locator, 18.1! L--Chevron-shaped groove, 22-Punch part, 23--Press punch, 24-Press roller part, 24a--Press roller, 30...-Connector holding part, 31--
Guide member 32-・Cable mounting stand, 34・
-Rail member, 35-Insulator holding member, 35b
−Push pin, indicating. Agent Patent Attorney Sada Igeta ((q

Claims (1)

[Claims] A plurality of signal lines (2) and a ground line (3) arranged regularly.
) are inserted into each of the U-shaped grooves (18, 1
9) formed of an insulating material locator (13), and a plurality of contacts (13) connected to the signal line (2) and the ground line (3).
This is a device for connecting the signal wire (2) and ground wire (3) of the connected flat cable (1) to a connector (11) equipped with an insulator (12) in which the wires (5, 16) are embedded. ,
A clamping member (35) that holds the insulator (12) upward.
a cable mounting means stand (32) for mounting the flat cable (1) on the insulator (12); and a cable mounting means stand (32) for mounting the flat cable (1) on the insulator (12);
A guide member (31) that positions the locator (13) so that the locator (13) faces downward, and a pair of pressing rollers (24, 24) press both sides of the connection part of the flat cable (1). descend,
A press-welding device for connecting a flat cable, comprising: a punch portion (22) for press-fitting the locator (13) into the insulator (12).