JP2002208325A - Flat cable and its positioning - Google Patents

Abstract

(57) [Summary] [Problem] To accurately position a flat cable in a correct posture. SOLUTION: A flat cable 30 'is provided by a measuring device having a punch for punching between a feed reel and a discharge roller.
During the measurement of (40 '), a hole 34h (notch 4) is formed in the bridge portion 34 (margin portion 45) by the punching punch.
5h). Thus, in the subsequent processing steps, the positioning pins for engaging with the holes 34h (notches 45h) are provided on the positioning table of each step by using the holes 34h (notches 45h). 34h hole in the pin
(Notch 45h) and the cable 30 '(4
0 ') is kept in the normal posture. The hole 34h (notch 4
5h) is arranged at an asymmetrical position in the width direction of the cable 30 ′ (40 ′), or the cable 3 ′ is changed in size and shape at each position, even if it is not asymmetrical in position.
It is also possible to prevent 0 '(40') from being inverted.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to positioning of a flat cable when processing the flat cable.

[0002]

2. Description of the Related Art As the above flat cable, for example,
FIG. 3 has been developed with the reference numeral 30.
(A), (b), and (c) each show the forming process in that order, and the upper part shows a plan view and the lower part shows a cross-sectional view.

As shown in FIG. 1A, a plurality of core wires 31 (two wires in the figure) in which a round conductor 31a is covered with an insulator 31b, and a drain wire 31d consisting of only a conductor, are formed as shown in FIG. A pair of metal foils 32 sandwiching the core wires 31 (including the drain wires 31d) from the front and back of the plane formed by the adhesives as shown in FIG. The metal foil 32 is covered with an insulating resin 33 as shown in FIG.

[0004] Further, what is indicated by the reference numeral 40 in FIG. 4 is one in which a flat conductor is used as the core wire 41 instead of a round conductor, and this is a resin film coated with an adhesive. 43 is pressed and simultaneously pressed by a pair of heat rollers 51 with a flat plate conductor 41 interposed therebetween with the adhesive applied surface 43 ′ therebetween, and formed into a flat (laminated film) shape. It was done. In the figure, rollers 52 and 53
Are a feed roller and a roller 54 for the resin film 43, respectively.
Is a feed roller for the flat conductor 41, and a roller 55 is a winding roller for the completed flat cable 40.

By the way, a terminal is attached to the flat cable 30 after being measured (hereinafter, represented by a flat cable of a reference numeral 30 and reference numerals of corresponding elements of a flat cable of a reference numeral 40 are shown in parentheses). The connection target,
For example, when connecting to the cavity of the connector, the pitch between the core wires 31 (41) is constant as it is,
This is because the arrangement pitch of the cavities is the
In order to connect to a connector having a pitch different from the arrangement pitch of (41), a resin portion between the core wires 31 (41) (hereinafter simply referred to as a bridge portion 34 (44), It is necessary to make a slit in the margin part 45) to make the adjacent core wires 31 (41) independent from each other. However, when forming the slit, the positioning of the flat cable 30 (40) is not performed correctly, For example, if the slit is shifted in the width direction, is inclined, or the flat cable 30 (40) is twisted, the slit greatly deviates from a predetermined formation position and reaches the core 31 (41). Something that can hurt it happens.

[0006]

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a flat cable in a correct posture, that is, in a horizontal position, when receiving processing such as mounting a terminal to the flat cable.
Another object of the present invention is to enable positioning at a regular position.

[0007]

In order to solve the above-mentioned problems, the present invention is to provide a hole or a notch in the bridge portion or the margin portion, and to provide the hole or the notch in a desired positioning area. The flat cable is positioned by engaging with the engaging body engaging with the notch.

[0008] With this arrangement, in the processing steps such as the formation of the slits and the mounting of the terminals, the flat cable is fixed horizontally and without being displaced from the proper position by the positioning.

At this time, the positioning hole or notch is formed, for example, with respect to the width center of the cable so that when the front and back of the flat cable are reversed, the “form is asymmetric” between the front and back. If a hole or notch is provided at an asymmetrical position, or even if the position is symmetric, if it is formed in a form that makes the size and shape different at each position, if the front and back are opposite, one side Even if the front surface is engaged with the engaging body, the cable is not engaged on the opposite surface, so there is no possibility that the front and back of the cable are reversed.

In order to form such positioning holes and notches in the flat cable, holes or notches are provided between the feed reel side and the discharge roller side of the measuring device. In the measuring process, if a hole or a notch is formed at the same time as the measuring process, the time spent for the hole or the notch is absorbed in the measuring process, and the forming operation of the hole or the notch is performed. Is added to the process of the line without reducing the operation rate of the line.

[0011]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is an embodiment of a flat cable according to the present invention, and FIG. 2 is a schematic view of an apparatus for producing the flat cable. The basic forms of the flat cables 30 ', 40' of this embodiment are the same as those shown by the reference numerals 30, 40 in FIGS. 3 and 4, respectively, of the conventional example. The description is omitted here. First, the flat cables 30 'and 40' of this embodiment will be described with reference to FIG.

This flat cable 3 shown in FIG.
As described above, 0 'has the same basic form as that shown in FIG. 3 of the conventional example, except that the bridge portion 34 is provided with a hole 34h for positioning. The flat cable 40 'shown has a notch 45h for positioning in a margin portion 45 thereof.

The hole 34h of the bridge portion 34 is a perfect circle, and the notch 45h of the margin portion 45 has the same diameter as that of the perfect circle, and a semicircular portion extends inward in the width direction from the edge of the flat cable 40 '. It was formed. The hole 34h or the notch 45h is formed by a hole punch attached to a measuring device described below. Next, the device will be described. FIG. 2 schematically shows the configuration of the apparatus. In the following description, a flat cable is represented by a core wire 31 having a round conductor and denoted by reference numeral 30 ′. The elements to be performed are shown in parentheses.

This measuring device has a flat cable 3 flowing between a feed reel 21 and a discharge roller 22.
The upper die 23a and the lower die 23b of the perforating punch 23 are provided so as to vertically sandwich the plate surface of 0 ′ (40 ′).
The flat cable 30 ′ (4
0 ') to the discharge roller 22 side, and in the middle thereof, a hole 34h is formed in the bridge portion 34 (margin portion 45) by the punching punch 23 as shown in FIG.
(Notches 45h).

If the holes 34h (notches 45h) are formed in advance in the measuring process as described above, the holes 34h (notches 45h) are used when various kinds of processing are performed in the subsequent steps. , Cable 30 ′ (4
If a positioning pin that engages with the hole 34h (notch 45h) is provided on the mounting table 0 ′) and the hole 34h (notch 45h) is engaged with the positioning pin, the cable 30 ′ ( 40 ′) can be maintained in a horizontal position, and processing can be performed in a normal position without displacement in the length direction or the width direction.

Further, the hole 34h and the notch 45h
Is not only the positioning action of the flat cables 30 'and 40' as described above, but also the cable 3 after the measuring step.
In various processes (for example, mounting of terminals) on the 0 'and 40', they also have an effect of not turning the front and back. That is, the hole 34h and the notch 45h
If, for example, four cables are arranged at asymmetrical positions in the width direction of the cables 30 ′ and 40 ′ as shown in FIGS.
In the state where the front and back of 0 'and 40' are inverted, the hole 34h
Since the notch 45h cannot be engaged with the positioning pin that had been engaged in the state before the inversion, this can prevent the cables 30 'and 40' from being inverted.

Further, even if the position is not asymmetric, FIG.
As shown in (c) and (d), by changing the size and shape of the hole 34h and the notch 45h at each position, the inversion of the cables 30 'and 40' can be prevented.

The holes 34h and the notches 45h
May be formed by irradiating a laser beam using a laser irradiator other than the perforating punch 23.

[0019]

As described above, according to the present invention, a hole or a notch is provided in a bridge portion or a margin portion,
The cable is positioned by engaging it with an engaging body that engages with the hole or notch provided in the desired positioning area, so that the flat cable is horizontal and does not deviate from the regular position. It is fixed and can perform accurate and high-precision processing.

At this time, if the positioning hole or notch is formed so as to be asymmetric when the flat cable is turned upside down, if the front and back of the cable are reversed, the hole is originally used. And the notch does not engage with the engaging body, so that the front and back of the cable can be prevented from being reversed, and when attaching the terminal to both ends of the cable, the correspondence between the terminals at both ends is different. There is no fear.

Such a positioning hole or notch means is provided between the feed reel and the discharge roller of the measuring device, and the hole or notch is formed simultaneously with the measuring in the measuring process. For example, since the time spent for drilling or notching is absorbed in the measuring process, the operation rate of the line does not decrease even if the drilling or notching forming operation is added to the line process.

[Brief description of the drawings]

FIG. 1 (a), (b), (c), (d)
1 shows a flat cable according to an embodiment.

FIG. 2 schematically shows the apparatus of the embodiment.

FIGS. 3A, 3B, and 3C respectively show a forming process of an example of a flat cable of a round conductor.

FIG. 4 illustrates a process of forming a flat conductor flat cable.

[Explanation of symbols]

 Reference Signs List 21 feed reel 22 discharge roller 23 hole punching punch 30, 40, 30 ', 40' flat cable 31, 41 core wire 33, 43 resin film 34, 44 bridge part 34h hole (for positioning) 45 margin part 45h (for positioning) ) Notch

 ────────────────────────────────────────────────── ─── Continuing from the front page (72) Inventor Toshio Yoneya 1-7-10 Kikuzumi, Minami-ku, Nagoya F-term in the Auto Network Engineering Laboratory (reference) 5G311 CB01 CC01 CD06 CF06

Claims (4)

[Claims] 1. A flat cable comprising a plurality of core wires formed of conductors arranged in parallel on the same plane and covered with an insulating resin, and holes or cuts are made in resin portions between the core wires or in resin portions on both sides of a flat cable. I ’m going to make some
A method for positioning a flat cable, wherein the flat cable is engaged with an engaging body that engages with the hole or notch provided in a desired positioning area. 2. A flat cable comprising a plurality of cores formed of conductors arranged in parallel on the same plane and covered with an insulating resin. The flat cable has a resin portion between the cores or a resin portion on both sides for positioning. Flat cable with holes or notches. 3. The positioning hole or notch,
3. The flat cable according to claim 2, wherein the flat cable is formed such that when it is turned upside down, its form is asymmetric between the front and back. 4. A flat cable according to claim 2, further comprising means for forming the positioning hole or notch between a feed reel and a discharge roller of the flat cable in a measuring step. A flat cable measuring device, characterized in that: