JPH07312241A - Cross wiring method and cross wiring structure for flat cable, and flat cable having this cross wiring structure - Google Patents

Abstract

PURPOSE:To replace the arragement order of conductors without cutting an insulator over a wide range, in a cross wiring method and cross wiring structure for flat cable, and a flat cable having the cross wiring structure, and reduce the number of working processes and the product cost. CONSTITUTION:Two or more conductors 11b, 11e to replace for arrangement order are cut in a longitudinal intermediate position, respectively, and terminals 13, 30, 40 are mounted on both side positions with the cutting positions C of the conductors 11b, 11e, respectively. The terminal 11 of one conductor 11b arranged on one end side of a flat cable 10 is continued to the terminal 11 of the other conductor 11e arranged on the other end side of the flat cable 10 by connecting members 18, 31, whereby the wirings are crossed in an optional longitudinal position of the flat cable 10.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a flat cable cross wiring method, a cross wiring structure, and a flat cable having the cross wiring structure.

[0002]

2. Description of the Related Art A flat cable in which a plurality of conductors arranged at parallel intervals are integrally covered with an insulator can make the cable flat and arrange a plurality of wirings in an orderly manner. For this reason, it has been widely used for efficient wiring and space saving in response to the increase in the number of wires accompanying the spread of electronic devices, OA devices, and computer devices in recent years.

Since the flat cable is composed of a plurality of parallel conductors as described above, the conductors on both ends of the flat cable are in a one-to-one correspondence in the arrangement order. Therefore, when connecting connectors having the same terminal arrangement, the conductors of the flat cable are connected to the terminals of the connector while maintaining the parallel arrangement.

However, depending on the equipment to which such a flat cable is applied, there are cases where it is desired to change the arrangement order of the conductors at both ends of the flat cable. That is, it is conceivable that the same type of connectors to be connected by the flat cable may have different signal arrangements or may have different types of connectors connected to each other. In these cases, it is usually said that the wiring should be crossed inside the equipment and the wiring should not be adjusted on the flat cable side. In, it becomes necessary to adjust the arrangement order of the conductors.

In such a case, a method shown in FIG. 19 can be considered as a method of changing the arrangement order of the conductors of the flat cable. That is, first, as shown in FIG.
6 arranged in the order of a, 2b, 2c, 2d, 2e, 2f
In the flat cable 1 having the two conductors 2a to 2f, the insulators 3 of the so-called bridge portion B arranged on both sides of the conductors 2c and 2e whose arrangement order is to be changed are cut from the end portion of the flat cable 1 and the conductor 2c. 2e to other conductor 2
Separated from a, 2b, 2d, and 2f. Then, as shown in (b), the pair of conductors 2c and 2e are lifted,
As shown in (c), the conductors 2d disposed between them are crossed over and the ends of the conductors 2c and 2e to be exchanged are stored at the positions where the conductors 2e and 2c to be exchanged were disposed. Place and secure as you would. As a result, the conductors are arranged in the order of 2a, 2b, 2e, 2d, 2c, 2f.

[0006]

However, according to the above-mentioned wiring method, the conductor 2e whose arrangement order should be changed.
In order to separate and replace 2c from the other conductors 2a, 2b, 2d, 2f, the insulator 3 of the flat cable 1 must be cut from the end, and the conductors 2a to 2f should be arranged in a regular pitch. The advantages of the flat cable 1 that is used are diminished. That is, since the flat cable 1 has a plurality of conductors 2a to 2f arranged at a constant pitch, all the conductors 2a to 2f should be collectively subjected to terminal treatment such as lead-out processing and crimping work at the end portions thereof. It has the advantage that However, in the above wiring method, since it is necessary to separate the conductors 2c and 2e from others, the conductors 2c and 2e are implemented only at the end portions of the flat cable 1, and the conductors 2c and 2e are arranged in order to change the arrangement order. The insulators 3 of the bridge portion B arranged on both sides of the are cut at four locations.

Therefore, it is difficult for most of the conductors 2a to 2f at the end of the flat cable 1 to maintain the original pitch. Moreover, in the conductors 2a to 2f after the arrangement order is changed, it is even more difficult to reproduce the original pitch at the end of the flat cable 1 and form the end flat. Then, the conductors 2a-
When the pitch of 2f cannot be maintained constant, it is difficult to collectively perform terminal treatments such as lead-out processing and crimping work to be performed thereafter for all the conductors 2a to 2f, and automation is performed. While it becomes an obstacle when trying,
When trying to keep the pitch of the conductors 2a to 2f constant,
It requires a great deal of labor and man-hours.

The present invention has been made in view of the above-mentioned circumstances, and the order of arranging the conductors can be changed at an intermediate position in the longitudinal direction of the flat cable without cutting the insulator over a wide range. An object of the present invention is to provide a cross wiring method for a flat cable, a cross wiring structure, and a flat cable having the cross wiring structure.

[0009]

To achieve the above object, the present invention relates to a flat cable in which a plurality of conductors arranged at parallel intervals are integrally covered with an insulator. A cross-wiring method in which the arrangement order of conductors at both ends of a cable is changed at intermediate positions in the longitudinal direction, and two or more conductors whose arrangement order is to be changed are cut at the intermediate positions in the longitudinal direction, and the cut conductors are cut. Attaching terminals that conduct electricity to the conductors on both sides of the cut point, and the terminal of one conductor arranged on one end side of the flat cable and the other conductor arranged on the other end side of the flat cable. Has proposed a flat cable cross wiring method in which the terminals are electrically connected by a connecting member.

Further, according to the present invention, in a flat cable in which a plurality of conductors arranged at parallel intervals are integrally covered with an insulator, two or more conductors cut at an intermediate position in the longitudinal direction are provided. At both sides of the cutting point,
Terminals that are made conductive to the conductors are attached respectively, and a terminal of one conductor arranged on one end side of the flat cable and a terminal of another conductor arranged on the other end side of the flat cable are respectively connected by a connecting member. We propose a cross wiring structure of flat cables that are connected in a conductive state.

In the above cross wiring structure, the terminals are
It may be composed of a pressure contact terminal that is cut in the thickness direction of the flat cable insulator and pressed against the inner conductor, and that a plurality of terminals and a connecting member that connects these terminals are integrally formed. May be further,
The terminal is composed of a crimp terminal which is crimped so as to embrace the conductor, and the crimp is attached to the conductor partially protruded along the longitudinal direction of the flat cable at both sides of the cut portion of the cut conductor. A structure in which the terminals are crimped may be adopted.

Further, according to the present invention, a flat cable having a plurality of conductors arranged in parallel at intervals and integrally covered with an insulator and having the cross wiring structure at an intermediate position in the longitudinal direction is provided. is suggesting.

[0013]

According to the flat cable cross-wiring method and cross-wiring structure of the present invention, two or more conductors to be rearranged in order are cut at an intermediate position thereof, so that the conductors are electrically connected at both ends of the flat cable. Is cut off. Then, terminals are attached to both sides of the cut portion of these conductors, and two terminals attached to other conductors are electrically connected by a connecting member, so that the arrangement order of conductors at both ends of the flat cable is changed. Will be done. In this case, the flat cable does not have to cut through the insulation at its ends, so that the conductors at the ends are maintained in a neat array.

Further, if the terminals are constituted by pressure contact terminals in the above-mentioned flat cable cross wiring structure, the pressure contact terminals can be pushed into both sides of the cut portion to cut the flat cable insulator in the thickness direction. It becomes possible to press-contact the internal conductor, and wiring work becomes easy. Furthermore, if the terminal and the connecting member that connects these terminals are integrally formed, it is possible to omit the labor of connecting the connecting member and the terminal, and to easily change the arrangement order of the conductors. Become. In the cross wiring structure of the flat cable, the terminal is a crimp terminal,
If this is crimped to the conductor that is exposed at both sides of the cut portion of the conductor, the terminal and the conductor will be bonded more reliably.

Further, according to the flat cable having the cross wiring structure of the present invention, the arrangement order of the conductors at both ends is exchanged at an intermediate position in the longitudinal direction.
It is not necessary to cut the insulator at both ends. Therefore, it is possible to maintain the conductors at both ends in an array with a certain pitch, and it is easy to carry out terminal processing such as collective positioning of a plurality of terminals to a plurality of conductors and collective crimping.

[0016]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of a flat cable cross wiring method and a cross wiring structure according to the present invention will be described below with reference to FIGS. In the cross wiring method according to the present embodiment, first, for example, at a middle position in the longitudinal direction of the flat cable 10, for example, the pair of two conductors 11b and 11e whose arrays should be exchanged are cut. As a result, the conductors 11b and 11e are separated by the cut point C.
It is divided into each.

Next, the pressure contact bus bar 12 is provided at both sides of the conductors 11b and 11e with the cutting point C interposed therebetween.
The pressure contact portion 13 of the terminal is attached. Then, the conductors 11b and 11e connected by the pressure contact bus bar 12 are brought into conduction with each other, and by crossing the pressure contact bus bar 12, a cross wiring structure in which the arrangement order of the conductors 11b and 11e is changed is formed. It will be. The order of cutting the conductors 11b and 11e and attaching the terminals may be reversed.

The cutting of the conductor is carried out by the method shown in FIGS. That is, as shown in FIG.
The die 14 is arranged below the conductor 11b to be cut of the flat cable 10, and the conductor 11b is sandwiched between the die 14 and the presser 15 arranged above the die. Die 14 and presser foot 15
2 are spaced apart in the longitudinal direction of the flat cable 10.
A pair of recesses 14a and
The flat cable 10 is gripped from above and below by closely contacting the outer surface of the flat cable 10 with 15a.

A punch 16 is provided between the pressers 15 so as to be lowered from above the flat cable 10 independently of the pressers 15. On the lower surface of the punch 16,
A sharp cutter 16a is provided on the edge portion over the entire circumference. Then, the punch 16 is driven from above to the flat cable 10 sandwiched by the presser 15 and the die 14 from above and below.

As a result, as shown in FIGS. 5 and 6, the insulator 17 is cut by the cutter 16a of the punch 16, and the shear force generated by the punch 16 and the die 14 causes the conductor 1 inside the flat cable 10 to be cut.
1b is cut. Then, as shown in FIG. 7, the desired conductor 11b is punched out at an intermediate position in the longitudinal direction and is divided into two parts. Further, the other conductors 11e whose arrangement order is to be changed are similarly cut.

As shown in FIG. 1, the press contact bus bar 12 is formed by punching and bending a thin metal plate to integrally connect the press contact portions 13 (terminals) arranged at both ends by connecting portions 18 (connecting members). It is formed in a square U shape. The press-contact portions 13 have slits 13a that are bent at right angles to the flat strip-shaped connecting portions 18 in the same direction and open at the tip. This slit 13a
Is formed to have a width smaller than the diameter of the conductors 11b and 11e in the flat cable 10.

Further, the tip of the press contact portion 13 is sharply formed so that it can be easily cut into the insulator 17 to be pressed. At the tip of the press contact portion 13,
An introduction portion 13b that narrows toward the slit 13a and an inclined portion 13c that narrows toward the tip are provided on the outside thereof. The introduction portion 13b is the conductor 11 to be pressed.
The b • 11e is guided inside the slit 13a. Further, the inclined portion 13c is adapted to hold the pressure contact portion 13 so as not to expand the interval dimension of the slits 13a by urging the pressure contact portion 13 inward in the width direction by the insertion hole when inserted into the insertion hole described later. There is.

The pressure contact portions 13 are arranged in parallel to each other, and the connecting portion 18 connects the one pressure contact portion 13 to the one conductor 11.
When arranged so as to be orthogonal to b, it is formed so that another pressure contact portion 13 can be orthogonal to another conductor 11e whose arrangement order is to be changed. The press-contact bus bar 12 formed in this way is arranged so that two pairs intersect each other, and the conductors 11b and 11e in different rows are connected to each other across the cutting point C.

Incidentally, in FIG. 1 and FIG.
Is an insulating tube disposed in a covering state on the connecting portion 18 of one pressure contact bus bar 12 so as to insulate it from other intersecting pressure contact bus bars 12. Further, reference numeral 20 is an insulating cover arranged so as to cover a side surface opposite to the side surface of the flat cable 10 to which the press contact bus bar 12 is attached. The insulating cover 20 is provided with an insertion hole 21 into which the pressure contact portion 13 pressed against the conductors 11b and 11e is inserted. The insertion hole 21 supports the pressure contact portion 13 in the width direction and maintains the gap dimension of the slits 13a so as not to widen.

With the cross wiring method of this embodiment, the conductors 11a to 11a at both ends of the flat cable 10 are connected.
The case of changing the arrangement order of 11f will be described below with reference to the flowchart of FIG. First, the conductor 11b whose rearrangement order of the flat cable 10 should be changed
・ Cut the middle of 11e in the longitudinal direction (STEP 1).
As shown in FIGS. 4 to 7, this cutting is performed by bringing the presser 15 and the die 14 close to each other to the flat cable 10 arranged horizontally, and changing the arrangement order of the pair of conductors 11b and 11e in the longitudinal direction. Insert the middle position (STEP
1A) and punch 16 (STEP 1B). In this case, the cut point C of both conductors 11b and 11e
Are preferably arranged at substantially equal positions in the longitudinal direction of the flat cable 10.

Next, the insulating cover 20 is placed on the lower surface of the flat cable 10 near the cut portion C provided as described above (STEP 2). And pressure contact bus bar 1
The one pressure contact portion 13 is positioned on one conductor 11b of the conductors 11b and 11e, and the other pressure contact portion 13 is positioned on the other conductor 11e beyond the cutting point C, and
Both pressure contact parts 13 are pressed against the side surface of the flat cable 10 (STEP 3). As a result, the tip of each press-contact portion 13 is cut into the insulator 17 of the flat cable 10 and contacts the internal conductors 11b and 11e, and the conductors 11b and 11e guided by the introduction portion 13b enter the slit 13a of the press-contact portion 13. Is inserted. Along with this, the flat cable 10
The tip end of each pressure contact portion 13 penetrating through is inserted into the insertion hole 21 of the insulating cover 20.

The width of the slit 13a is equal to that of the conductor 11b.
Since the conductors 11b and 11e are formed to be smaller than the diameter of 11e, the conductors 11b and 11e are brought into pressure contact with the slits 13a to be electrically connected to the pressure contact bus bar 13.
The insertion state of the insertion hole 21 maintains the pressure contact state between them.
As a result, the conductors 11b and 11e arranged at different arrangement positions with the cut portion sandwiched therebetween are electrically connected by the connecting portion 18. Then, as shown in FIG. 3, the pressure contact bus bar 12 attached to the flat cable 10 and the cut portion C of the flat cable 10 are covered with an adhesive tape 22 having an insulating property (STEP 4) to thereby provide insulation to the outside. Can be maintained.

Therefore, according to the cross wiring method of this embodiment, the cut conductors 11b and 11e are pressure-welded to the bus bar 1.
The connection order of the conductors 11a to 11f at both ends of the flat cable 10 is 11a.
It can be replaced like 1e, 11c, 11d, 11b, 11f. Therefore, connection work is easy,
Work efficiency can be improved. Further, since the connecting work can be performed at any position in the longitudinal direction of the flat cable 10, it is not necessary to cut the insulator 17 at the end of the flat cable 10 and the conductors 11a to 11a.
The arrangement pitch of 11f can be maintained.

Further, in the cross wiring structure constituted by the cross wiring method of this embodiment, the pressure contact portion 13 is formed into the insulator 1.
7 is intended to connect the pressure contact bus bar 12 and the conductors 11b and 11e to each other, so that the insulator 17 to be cut can be minimized.

The flat cable 10 having the cross wiring structure of this embodiment has the insulator 1 at both ends thereof.
Since 7 is not torn, the pitch between conductors at both ends can be kept constant. This allows
All the conductors 11a to 11 are provided at the end of the flat cable 10.
It is possible to collectively output f, and it is possible to accurately grasp the positions of the exposed conductors 11a to 11f. Therefore, the positioning work of the terminals (not shown) and the like with respect to the conductors 11a to 11f becomes easy, and it becomes possible to carry out collective positioning, collective pressure bonding and the like. As a result, it is possible to easily automate the terminal processing.

Next, a second embodiment of a cross wiring method and a cross wiring structure for a flat cable according to the present invention will be described with reference to FIGS. 9 to 11. Note that, in this embodiment, the same reference numerals are given to the portions common to the configuration shown in the above-described first embodiment, and the description will be simplified.

In the cross wiring structure of the present embodiment, a plurality of pressure contact terminals 30 (terminals) and a connecting member 31 such as a covered wire connecting them are used instead of the pressure contact bus bar 12. This is different from the first embodiment. Therefore, the cross wiring method of this embodiment is almost the same as that of the first embodiment, but the pressure contact terminal 30 is connected to each conductor 11b.
This is different from the first embodiment in that two of the press contact terminals 30 are connected by a connecting member 31 after press contacting every 1e.

The pressure contact terminal 30 is, as shown in FIG.
At both ends of the metal thin plate bent and formed in a U shape, pressure contact portions 32 each having a slit 30a, an introduction portion 30b, and an inclined portion 30c are provided, and the pressure welding portion 32 is sandwiched between the conductors 11b and 11e at the cut point C. It can be attached. That is, each pressure contact terminal 30 is pressed against the flat cable 10 to generate the pressure contact portion 32.
Is cut in the insulator 17 of the flat cable 10 in the thickness direction. Then, the internal conductors 11b and 11e are inserted and arranged in the slit 30a, whereby
It is adapted to be pressed against 11e.

These pressure contact terminals 30 are arranged in parallel.
Since the pair of conductors 11b and 11e are attached to both sides of the cut point C, the pressure contact terminals 30 are connected to each other at a diagonal position in the quadrangle having the apex by the connecting member 31. As a result, the conductors 11a on both ends of the flat cable 10
It is possible to change the arrangement order of 11f. As shown in FIG. 10, the connecting member 31 is joined by, for example, resistance welding the conductors 31 a exposed at both ends thereof to the pressure contact terminal 30. As a result, the cutting point C
The other conductors 11b and 11e sandwiching the above are attached so as to cross each other so as to be electrically connected to each other.

The pressure contact terminals 30 are pressed against one side surface of the flat cable 10 and the conductors 11b.
After the flat cable 10 is penetrated through the flat cable 10 in the thickness direction, the inclined portion 30c at the tip pressed against the 1e is inserted into the insertion hole 33a of the insulating cover 33 arranged on the other side surface, whereby the gap of the slit 30a is formed. It is possible to prevent the expansion of dimensions and maintain a reliable connection state. The cross wiring structure thus configured is covered with the adhesive tape 22 having an insulating property after the connection is completed, as in the first embodiment shown in FIG.

The above-mentioned cross wiring method is carried out according to the flow chart shown in FIG. First, the conductors of which the arrangement order of the flat cable 10 should be changed are cut in the same manner as in the first embodiment (STEP 11), and the insulating cover 33 is arranged on the lower surface of the flat cable 10 near the cut portion C (STEP 12). ). Then, the pressure contact portion 32 of the pressure contact terminal 30.
So as to be aligned with the insertion hole 33a provided in the insulating cover 33, the conductors 11b and 11e at the positions on both sides of the cutting point C are sandwiched.
Position and press (STEP 13).

As a result, the tip of each press-contact portion 32 is cut into the insulator 17 of the flat cable 10 and the inner conductor 1 is cut.
The conductors 11b and 11e that are in contact with the 1b and 11e and guided by the introduction portion 30b are inserted into the slits 30a of the pressure contact portion 32 and are pressure-contacted, and the tips of the pressure contact portions 32 that penetrate the flat cable 10 are insulated from each other. The cover 33 is inserted into the insertion hole 33a. After that, the conductors 31a are joined to the respective pressure contact terminals in a state where the connecting members 31 having both ends exposed are crossed (STEP 14). Then, in the same manner as in the first embodiment, the adhesive tape 22 having an insulating property is coated (STEP 15).

According to the cross wiring method and the cross wiring structure of the present embodiment, the conductors 11a to 1 at both ends of the flat cable 10 can be formed by a simple connecting work as in the first embodiment.
The arrangement order of 1f can be exchanged. Moreover, the arrangement of the conductors 11a to 11f can be switched at any position in the longitudinal direction of the flat cable 10, so that the conductors 11a to 11f at both ends of the flat cable 10 can be replaced.
11f can be maintained in an orderly arrangement.

Since the press contact terminal 30 and the connecting member 31 are separated, the length of the connecting member 31 and the joining angle with the press contact terminal 30 are adjusted to adjust the arbitrary conductor 11a.
This can be flexibly applied when the arrangement order of 11f is changed. Further, since each pressure contact terminal 30 has the two pressure contact portions 32, the bonding state with the conductors 11a to 11f can be made stable and reliable.

Next, a third embodiment of the flat cable cross wiring method and the cross wiring structure according to the present invention will be described with reference to FIGS. In the present embodiment, the same reference numerals are given to the portions common to the configurations shown in the above-mentioned first and second embodiments, and the description will be simplified. The cross wiring method and the cross wiring structure of the present embodiment differ from the second embodiment in that the crimp terminal 40 (terminal) is used instead of the pressure contact terminal 30.

In the cross wiring method of this embodiment, first, the pair of two conductors 11b and 11e whose arrangement order is to be changed is cut at an intermediate position in the longitudinal direction. Then, at both sides of the cut portion, the conductor 11b.
A so-called intermediate feeding process is performed to partially remove the insulator 17 covering 1e. Then, after crimping the crimp terminals 40 to the respective exposed conductors 11b and 11e, the crimp terminals 40 arranged at diagonal positions are connected by the connecting member 31 made of a covered electric wire.

The cutting of the conductors 11b and 11e is performed in the same manner as the method of the first embodiment. The intermediate feeding process is shown in FIG.
4 to 17 as shown in FIG. That is,
First, as shown in FIG. 14A, the slit cutter 42 is inserted from above in a state where the anvil 41 is arranged below the horizontally arranged flat cable 10 and the flat cable 10 is supported from below.

The anvil 41 includes conductors 11b and 11e.
Conductors 11b and 11e having a width dimension equivalent to the diameter dimension of the flat cable 10 and the surface of the flat cable 10 is brought into close contact with a recess 41a formed on the upper surface of the conductor 11b.
Is supported from below. Two slit cutters 42 are provided, and the conductors 11b and 11e are provided.
Are arranged in parallel with a space equivalent to the diameter dimension of.

When the slit cutter 42 is inserted into both sides of the conductors 11b and 11e to be subjected to the intermediate lead-out process, slit-like cuts 43 are formed as shown in FIG. 14 (b). It will be. The notch 43 is formed so as to expose the side portions of the conductors 11b and 11e, and as shown in FIG.
It is preferably formed so as to be in contact with both sides of b · 11e.

Further, in the flat cable 10 having the slit-like cuts 43 formed in this manner, the lead-out cutters 44 are inserted from above and below at both ends of the cuts 43 as shown in FIG. 15 (a). , The insulator 17 is cut off. The lead-out cutter 44 brings the tooth tip 44a formed in a V shape close to a position where it comes into contact with the conductors 11b and 11e, so that the conductor 11b (as shown in (b) and (c) of FIG. Only the insulators 17 arranged above and below 11e) are cut.

The insulator 17 cut in this way is adsorbed by the adsorber 45 which is vertically approached and removed from the flat cable 10, as shown in FIG. As a result, FIG. 16 and FIG.
As shown in FIG. 7, the lead-out portion 46 is formed at an intermediate position in the longitudinal direction of the flat cable 10.

As shown in FIG. 12, the crimp terminal 40 is provided with U-shaped wire barrels 40b opening in the same direction at both ends of a connecting portion 40a for joining the connecting member 31. Then, the crimp terminal 40 is attached to the conductors 11b and 11e exposed in the intermediate lead-out portion 46 by inserting the open end of the wire barrel 40b into the intermediate lead-out portion 46 and crimping each.

Thereafter, as shown in FIG. 13, the flat cable 10 is joined to the connecting portion 40a of each crimp terminal 40 arranged in a diagonal position by connecting the connecting member 31 whose both ends are exposed by resistance welding or the like. The order of arrangement of the conductors 11a to 11f at both ends of is changed. Then, in the same manner as in the first and second embodiments, the conductor 11b exposed by the adhesive tape 22 having an insulating property.
Cross wiring is completed by covering 11e, the crimp terminal 40 and the connecting member 31 attached to the conductors 11b and 11e.

The above-described cross wiring method of this embodiment is carried out according to the flow chart shown in FIG. That is, first, the conductors of which the arrangement order of the flat cables 10 should be changed are cut in the same manner as in the first embodiment (ST.
EP 21). Next, the lead-out processing at both sides of the cut portion C is performed according to the method shown in FIGS. 14 to 17 (STEP 22). In the lead-out process, as shown in FIG. 14, a slit-like cut 43 is formed by a slit cutter and an anvil on the side of the conductor to be processed (STEP 2
2A), as shown in FIG. 15, cut both ends of the notch 43 with the cutter, and as shown in FIG. 16, remove the insulator at the intermediate protrusion with an adsorber (STEP 22C). It is carried out by.

Then, after that, the wire barrel of the crimping terminal is inserted into the intermediate lead-out portion thus formed and caulked (STEP 23), and the connecting members 31 whose both ends are exposed are crossed. The conductor 31a is joined to each pressure contact terminal (STEP 24). And the first and second
In the same manner as in the example, the adhesive tape 22 having an insulating property is used for coating (STEP 25).

According to such a cross wiring method, as in the first and second embodiments, the wiring can be carried out at an arbitrary position in the longitudinal direction of the flat cable 10, so that the insulator at the end of the flat cable 10 can be used. It is not necessary to cut 17 and the arrangement pitch of the conductors 11a to 11f can be maintained. Further, according to the cross wiring structure configured by such a cross wiring method, the wire barrel 40
By the joint structure of crimping b to the conductors 11b and 11e,
The joined state between the conductors 11b and 11e and the crimp terminal 40 can be made more reliable.

In each of the first to third embodiments, the arrangement order of the two pairs of conductors 11b and 11e is changed at both ends of the flat cable 10, but any conductor may be arranged. Applicable when replacing. Also, two pairs of conductors 11b and 11
Instead of the conductor e, the arrangement order of the two or more conductors 11a to 11f may be changed. In this case, even-numbered pairs of conductors may be exchanged, or an arbitrary number of conductors may be exchanged in an arbitrary combination.

The types of the conductors 11a to 11f constituting the flat cable 10 are not limited at all, and the flat cable 10 having a conductor such as a single wire, a rectangular wire or a twisted wire can be applied. Further, the number of conductors 11a to 11f, the thickness, the pitch, the material of the insulator 17, etc. are not limited at all.

In the third embodiment, the crimp terminal 40 is crimped to the conductors 11b and 11e that are exposed, and the crimp terminals 40 are connected by the connecting member 31, but the exposed portion 46 is exposed. Conducting conductor 11
The connecting member 31 may be directly joined to the b · 11e. In this case, similarly to the above, the cross wiring structure can be achieved with a simple configuration.

[0055]

As described above in detail, in the flat cable cross wiring method according to the present invention, two or more conductors whose arrangement order is to be changed are cut at intermediate positions in the longitudinal direction, and the cut portions of the conductors are cut. Since the terminals are respectively attached to both sides of the sandwiched cable, the terminal of one conductor arranged on one end side of the flat cable and the terminal of the other conductor arranged on the other end side of the flat cable are electrically connected by the connecting member. Thus, there is an effect that the wirings can be crossed at arbitrary positions in the longitudinal direction of the flat cable and the arrangement order of the conductors at both ends of the flat cable can be easily replaced.

In this case, since it is not necessary to cut the insulator of the bridge portion and rearrange the conductors made into a single wire, the work can be simplified and the number of work steps can be reduced. Further, since the wirings are crossed in the middle of the flat cable in the longitudinal direction, there is an advantage that the arrangement order of the conductors can be changed even after the connectors and the like are attached to both ends of the flat cable.

Further, in the flat cable cross wiring structure according to the present invention, terminals which are electrically connected to the conductors are attached to both side positions sandwiching the cut portions of two or more conductors cut in the middle of the longitudinal direction, Since a terminal of one conductor arranged on one end side of the flat cable and a terminal of another conductor arranged on the other end side of the flat cable are respectively connected in a conductive state by connecting members, a simple structure With this, it is possible to change the arrangement order of the conductors.

Further, in the above-mentioned cross wiring structure, when the terminal is constituted by a pressure contact terminal which is cut in the thickness direction of the insulator of the flat cable and pressure contacted with the internal conductor, the pressure contact terminal is pressed against the flat cable. With this structure, it is possible to cut into the insulator and conduct electricity to the conductor inside, so that there is no need to expose the flat cable, and it is possible to further simplify the configuration.

Further, in the above-described cross wiring structure, if the plurality of terminals and the connecting member for connecting these terminals are integrally formed, the work of joining the terminals and the connecting member can be omitted, and This has an effect that the wiring order of the conductors can be easily exchanged.

Further, in the above-mentioned cross wiring structure, if the terminal is a crimp terminal and this is crimped to the conductor partly exposed at both sides of the cut portion of the conductor, it is flat as in the above effect. In addition to the effect that the wiring can be crossed at an arbitrary position in the longitudinal direction of the cable, the terminal and the conductor can be reliably connected,
An effect that connection reliability can be improved is exhibited.

Further, according to the flat cable of the present invention, a plurality of conductors, which are integrally and orderly arranged by the insulator, can be rearranged in order by crossing the wiring at an intermediate position in the longitudinal direction. So
At both ends of the flat cable, the conductors are maintained in an orderly arranged state, and collective lead-out processing, terminal crimping work, and the like can be facilitated. As a result, the terminal processing can be automated.
Also, as compared to the case where the bridge part is cut and the array of conductors that are made into a single wire is rearranged, the conductor itself that constitutes the flat cable is not moved to change the array order, so the position where the cross wiring structure is provided. Even in the above, a relatively flat and stable form can be maintained.

[Brief description of drawings]

FIG. 1 is a perspective view showing a first embodiment of a cross wiring method for a flat cable according to the present invention.

FIG. 2 is a perspective view showing a cross wiring structure configured by the cross wiring method of FIG. 1 and a flat cable having the cross wiring structure.

FIG. 3 is a perspective view showing a state in which the cross wiring structure of FIG. 2 is covered with an insulating adhesive tape.

FIG. 4 is a perspective view for explaining a conductor cutting method in the cross wiring method of FIG.

5 is a vertical cross-sectional view for explaining the cutting method of FIG.

6 is a vertical cross-sectional view showing a state in which a conductor is cut by the cutting method of FIG.

7 is a perspective view showing a state in which one conductor of the flat cable is cut by the cutting method of FIG.

8 is a flowchart showing the cross wiring method of FIG.

FIG. 9 is a perspective view showing a second embodiment of a flat cable cross wiring method according to the present invention.

10 is a perspective view showing a cross wiring structure configured by the cross wiring method of FIG. 9 and a flat cable having the cross wiring structure.

11 is a flowchart showing the cross wiring method of FIG.

FIG. 12 is a perspective view showing a third embodiment of a flat cable cross wiring method according to the present invention.

13 is a perspective view showing a cross wiring structure configured by the cross wiring method of FIG. 12 and a flat cable having the cross wiring structure.

FIG. 14 is a diagram for explaining formation of cuts, which is an example of an intermediate lead-out process in the cross wiring method of FIG. 12;

FIG. 15 is a diagram for explaining a method of cutting an insulator in the intermediate lead-out process of FIG.

16 is a diagram for explaining a method of removing an insulator in the intermediate lead-out process of FIG.

FIG. 17 is a vertical sectional view showing a lead-out portion formed by the intermediate lead-out method of FIG.

18 is a flowchart showing the cross wiring method of FIG.

FIG. 19 is a perspective view showing a conventional example of a cross wiring method for a flat cable.

[Explanation of symbols]

10 ... Flat cable, 11a to 11f ... Conductor,
13 ・ 30 ・ 40 ・ ・ ・ ・ Terminal, 17 ・ ・ ・ ・ ・ ・ Insulator, C ・ ・ ・ ・ Cut point, 18 ・ 31 ・ ・ ・ ・ Connecting member

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Jun Hamada 1-5-1, Kiba, Koto-ku, Tokyo Fujikura Ltd. (72) Inventor Kazuya Akashi 1-1-5, Kiba, Koto-ku, Tokyo Shareholders Inside Fujikura

Claims (6)

[Claims] 1. A flat cable (10) in which a plurality of conductors (11) arranged at parallel intervals are integrally covered with an insulator (17), and conductors are arranged at both ends of the flat cable. A cross-wiring method in which the order is changed at a midway position in the longitudinal direction, and two or more conductors whose order of arrangement is to be changed are cut at the midway position in the longitudinal direction, and both sides of the cut point of each cut conductor are sandwiched. The terminals (13, 30, 40) that are electrically connected to the conductors are attached to the respective positions, and the terminals of one conductor are arranged on one end side of the flat cable and the other conductors are arranged on the other end side of the flat cable. A flat cable cross-wiring method, characterized in that the terminals are electrically connected by a connecting member (18, 31). 2. A flat cable in which a plurality of conductors arranged at parallel intervals are integrally covered with an insulator, and a cut portion of two or more conductors cut at an intermediate position in the longitudinal direction is sandwiched. Terminals that are electrically connected to the conductors are attached to both sides of the flat cable, and a terminal of one conductor arranged on one end side of the flat cable and a terminal of the other conductor arranged on the other end side of the flat cable. A cross wiring structure of a flat cable, characterized in that each is connected in a conductive state by a connecting member. 3. The cross-wiring structure for a flat cable according to claim 2, wherein the terminal is formed by a pressure contact terminal which is cut into the insulator of the flat cable in the thickness direction and pressed against an internal conductor. 4. The plurality of terminals and a connecting member that connects these terminals are integrally formed.
Alternatively, the flat cable cross wiring structure according to claim 3. 5. The terminal comprises a crimp terminal that is crimped so as to embrace the conductor, and is partially exposed along the longitudinal direction of the flat cable at both sides of the cut portion of the cut conductor. The cross wiring structure for a flat cable according to claim 2 or 4, wherein the crimp terminal is crimped to a conductor. 6. The method according to claim 2, wherein a plurality of conductors arranged at parallel intervals are integrally covered with an insulator, and the conductors are provided at an intermediate position in the longitudinal direction. Flat cable with a cross wiring structure.