KR102245427B1 - Method for manufacturing flexible flat cable with peel-off protection and flexible flat cable with peel-off protection made thereby - Google Patents

Abstract

The present invention relates to a method for manufacturing an anti-peel-off flexible flat cable, and an anti-peel-off flexible flat cable manufactured thereby. The method of the present invention comprises the steps of: (A) forming a non-perforated unit (13) between a pair of first and second exposure windows (11, 12) by having an upper film (10) perforated with the first and second exposure windows (11, 12) at regular intervals (S1); (B) bonding the upper film (10) and a lower film (20) in a state that a conductive wire (30) is disposed between the upper and lower firms (10, 20); (C) slitting both side ends by a flexible flat cable stream (40) in which the upper and lower films (10, 20) are bonded, by using a slitting cutter (70) to form a flexible flat cable stream (45) having a predetermined horizontal width (d2); and (D) completing an anti-peel-off flexible flat cable finished product (50) having an anti-peel-off film (13") attached to at least one of front ends of first and second conductive wire exposure units (11', 12') by cutting an anti-peel-off film base material unit (13') of the flexible flat cable stream (45) having both slit side ends.

Description

Manufacturing method of a peel-off prevention flexible flat cable and a peel-off prevention flexible flat cable manufactured according to the method {METHOD FOR MANUFACTURING FLEXIBLE FLAT CABLE WITH PEEL-OFF PROTECTION AND FLEXIBLE FLAT CABLE WITH PEEL-OFF PROTECTION MADE THEREBY}

The present invention prevents peel-off, which manufactures a flexible flat cable so that a peel-off prevention film is disposed at the tip of the connection in order to prevent a peel-off phenomenon that occurs when the tip of the conductor is excited at the connection end where the conductor is exposed. It relates to a method of manufacturing a flexible flat cable and a peel-off prevention flexible flat cable manufactured accordingly, and more particularly, to an improvement of the “flexible flat cable manufacturing method” of Korean Patent No. 10-1135108 of the present applicant.

The applicant's Korean Patent No. 10-1135108 (registered on April 3, 2012) introduces a "flexible flat cable manufacturing method".

The flexible flat cable manufacturing method includes (a) punching an exposed window at a predetermined interval in the upper film unwound from the first bobbin, and (b) supplying a plurality of copper wires aligned between the upper film and the lower film, and thermally bonding Bonding the upper film and the lower film while the copper wire is disposed between the upper film and the lower film by heating and pressing the upper film and the lower film with a roller, and (c) a material attached to the lower surface of the lower film. 1 Attaching the first reinforcement plate to the flexible flat cable stream in which the upper film and the lower film are bonded so that the reinforcement plate corresponds to the position of the exposed window formed on the upper film, and (D) the exposure formed on the upper film of the flexible flat cable stream. Attaching a reinforcing film in the middle of the window; (e) slitting both side ends of the flexible flat cable stream so that the flexible flat cable stream has a predetermined width; and (f) slitting flexible flat cable A step of winding the stream onto a winding bobbin, and (g) supplying a flexible flat cable stream from the winding bobbin to a cutting device, and cutting the middle portion of the reinforcing film attached to the flexible flat cable stream to complete a flexible flat cable. It consists of

However, the flexible flat cable manufacturing method includes the step of attaching a reinforcing film to the middle of the exposed window, so it is difficult to attach a separate reinforcing film to the middle of the exposed window, Since the middle portion of the reinforcing film attached to the cable stream is cut, there is a disadvantage in that the width of the reinforcing film cannot be properly cut corresponding to the decrease in the exposed width of the copper wire.

Accordingly, an object of the present invention is to drill a pair of exposed windows in the upper film at regular intervals to form a non-perforated portion between the two exposed windows, and use a slitting cutter in a state in which the upper film and the lower film are bonded. Thus, the flexible flat cable stream, in which the upper film and the lower film are bonded, slits both side ends, so that the non-perforated part becomes the peel-off prevention film base material, and the ends of the exposed conductor wire in the flexible flat cable stream in which both side ends are slitting. As a standard, a part of the peel-off prevention film base material is cut, and a peel-off prevention flexible flat cable attached to the peel-off prevention film is produced at the tip of the exposed part of the wire, thereby reinforcing it in the middle of the exposed window to prevent peel-off of the wire. The process of attaching the film can be omitted, and a method of manufacturing a peel-off prevention flexible flat cable that can appropriately select the vertical width of the peel-off prevention film attached to the tip of the exposed part of the wire according to the size of the exposed part of the route is provided. It is to do.

Another object of the present invention is to provide a peel-off prevention flexible flat cable manufactured by the method of manufacturing the peel-off prevention flexible flat cable.

The method of manufacturing a peel-off prevention flexible flat cable according to the present invention for achieving the above object,

(A) forming a non-perforated portion between the pair of first and second exposed windows by perforating a pair of first and second exposed windows in the upper film unwound from the first bobbin at predetermined intervals; and

(B) By supplying a plurality of wires aligned between the upper film and the lower film, and compressing the upper film and the lower film using a heat bonding roller, the upper film is in a state where the wires are arranged between the upper film and the lower film. Bonding the film and the lower film;

(C) slitting both side ends of the flexible flat cable stream to which the upper film and the lower film are bonded using a slitting cutter to form a flexible flat cable stream having a predetermined horizontal width;

(D) By cutting the peel-off prevention film base material of the flexible flat cable stream with slitting at both side ends, a peel-off prevention film is attached to at least one of the tip of the first exposed part and the tip of the second exposed part. It characterized in that it consists of a step of completing the peel-off prevention flexible flat cable finished product.

In the above manufacturing method, (c) slitting both side ends of the flexible flat cable stream to which the upper film and the lower film are bonded using a slitting cutter to form a flexible flat cable stream having a predetermined horizontal width. In the step of performing, the first exposed window and the second exposed window become a first exposed portion and a second exposed portion, and a non-perforated portion between the first exposed window and the second exposed window is between the first exposed portion and the second exposed portion. It characterized in that the base material portion of the peel-up prevention film disposed on.

In the manufacturing method as described above, (D) by cutting the peel-off prevention film base material portion of the flexible flat cable stream with both side ends slitting, at least one of the front end of the first conductor exposed portion and the tip of the second conductor exposed portion In the step of completing the finished product of the peel-off prevention flexible flat cable with the peel-off prevention film attached to it,

The first exposed portion of the first conductor wire of the flexible flat cable stream with both side ends slitting reaches the cutting device first, and the first exposed portion of the flexible flat cable stream that reaches the cutting device is photographed by a vision camera, and When the image captured by the control unit is transmitted, the control unit not only displays the first wire exposure unit on the display device, but also sets the first parting line on the peel-off prevention film base material based on the first parting reference line of the first wire exposure unit. , The cutting device cuts the first parting line of the base material part of the peel-off prevention film,

Thereafter, the flexible flat cable stream is further transferred, the second exposed portion of the flexible flat cable stream is transferred to a cutting device, the vision camera photographs the second exposed portion of the flexible flat cable stream, and a control unit in the vision camera When the image captured by is transmitted, the control unit not only displays the second wire exposed part on the display device, but also sets the second parting line of the peel-off prevention film base material part based on the second parting reference line of the second wire exposed part, and cuts it. It is characterized in that the device cuts the second parting line of the peel-off prevention film base material part.

In the above manufacturing method, the first parting line of the peel-off prevention film base material part is cut based on the first parting reference line of the first wire exposed part, and peel-off having a predetermined vertical width at the tip of the first wire exposed part. A peel-off prevention film having a predetermined vertical width at the tip of the second conductor exposed part by cutting the second parting line of the peel-off prevention film base material part based on the second parting reference line of the second wire exposed part. The attached peel-off prevention flexible flat cable is characterized in that the finished product is completed.

As another alternative, (D) by cutting the peel-off prevention film base material of the flexible flat cable stream with slitting both side ends, peel-off is prevented at at least one of the tip of the first exposed part and the tip of the second exposed part. In the stage of completing the finished product of the peel-off prevention flexible flat cable with the film attached,

By cutting the first parting reference line of the first wire exposed part, the peel-off prevention film is not attached to the front end of the first wire exposed part, and the peel-off prevention film base material part was removed based on the second parting reference line of the second wire exposed part. 2 By cutting the parting line, a finished peel-off prevention flexible flat cable with a peel-off prevention film having a predetermined vertical width attached to the tip of the second conductor exposed portion is completed.

As another alternative, (D) by cutting the peel-off prevention film base portion of the flexible flat cable stream with both side ends slitting, peel off at least one of the front end of the first conductor exposed portion and the tip of the second conductor exposed portion. In the stage of completing the finished product of the peel-off prevention flexible flat cable with the prevention film attached,

A peel-off prevention film having a predetermined vertical width is attached to the tip of the first exposed part by cutting the peel-off prevention film base material with a mold in the slitting flexible flat cable stream at both side ends, and the tip of the second exposed part A peel-off prevention flexible flat cable with a peel-off prevention film having a predetermined vertical width attached to the finished product is completed.

In the above manufacturing method, (a) in the step of forming a non-perforated portion between the first and second exposed windows forming a pair on the upper film, by disposing a bonding device between the second bobbin and the heat bonding roller , It characterized in that the reinforcing plate is attached to the lower surface of the lower film unwound from the second bobbin so as to correspond to the positions of the first and second exposed windows of the upper film.

As another alternative, by arranging a bonding device between the heat bonding roller and the slitting cutter, in a state in which the upper film and the lower film are bonded, the lower surface of the lower film corresponds to the positions of the first and second exposed windows of the upper film. It characterized in that attaching the reinforcing plate to.

The peel-off prevention flexible flat cable according to the present invention is produced by the manufacturing method described above, and the vertical width (W5) of the peel-off prevention film attached to the tip of the second conductor exposed portion is 0.15 mm to 1 mm. .

Accordingly, the method of manufacturing a peel-off preventing flexible flat cable according to the present invention and the peel-off preventing flexible flat cable manufactured according to the present invention is a process of separately attaching a reinforcing film in the middle of the exposed window to prevent peel-off of the conductor Can be omitted, and according to the size of the route exposed portion, there is an effect that the vertical width of the peel-off prevention film attached to the tip of the exposed portion of the wire can be appropriately selected.

1 is a schematic work process diagram showing a method of manufacturing a peel-off prevention flexible flat cable according to the present invention.
FIG. 2 is a schematic diagram illustrating that both side ends of a flexible flat cable stream are slitting by a slitting cutter in FIG. 1 (A).
FIG. 3 is for explaining that a stream of flexible flat cables slitting at both side ends by the cutting device of FIG. 1 is cut.
4 is a plan view showing a finished product of a flexible flat cable formed by the cutting process of FIG. 3.
5 is a plan view showing another example of a finished product of a flexible flat cable.
6 is a plan view showing another example of a finished product of a flexible flat cable.
7 is a working process diagram schematically showing a method of manufacturing a peel-off prevention flexible flat cable according to the present invention for explaining the attachment of the reinforcing plate.
8 is a cross-sectional view showing a state in which a reinforcing plate is attached to a lower film in a method of manufacturing a peel-off preventing flexible flat cable according to the present invention.
9 is a working process diagram schematically showing a method of manufacturing a peel-off preventing flexible flat cable according to the present invention for explaining another example of attaching a reinforcing plate.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings.

First, referring to FIG. 1, FIG. 1 is a process diagram schematically showing a method of manufacturing a peel-off preventing flexible flat cable according to the present invention, in which the upper film 10 is drawn out from the first bobbin B1, The lower film 20 is drawn out from the second bobbin B2, and the conductive wire 30 is disposed between the upper film 10 and the lower film 20, The film 10 and the lower film 20 are bonded. Thereafter, both side ends of the flexible flat cable stream 40 to which the upper film 10 and the lower film 20 are successively bonded are slitting by a slitting cutter (70; schematically shown in the form of a square box). , The slitting flexible flat cable stream 40 is cut into a product size (S2) by a cutting device (80; schematically shown in the form of a square box), and the process of completing the finished flexible flat cable 50 is schematically illustrated. Is shown as.

A method of manufacturing a peel-off preventing flexible flat cable according to the present invention will be described in detail with reference to FIGS. 1 to 8.

Referring to FIG. 1 again, (a) a pair of first and second exposed windows 11 and 12 are drilled into the upper film 10 unwound from the first bobbin B1 at regular intervals S1, A non-perforated portion 13 is formed between the paired first and second exposed windows 11 and 12.

Here, as shown in Fig. 1, before the upper film 10 is supplied to the heat bonding rollers R1 and R2, a punch 60 disposed between the first bobbin B1 and the heat bonding roller R1; box The first and second exposed windows 11 and 12 are perforated in the upper film F1 at a predetermined interval S1 by (shown schematically in shape).

A predetermined distance (S1) for perforating the pair of first and second exposed windows 11 and 12 in the upper film 10 is a completed flexible flat cable in consideration of the length (S2) of the finished flexible flat cable 50 It should be longer than the length (S2) of (50).

The flexible flat cable finished product 50 is as shown in FIG. 3.

The width W1 of the second exposed window 11 and the width W2 of the second exposed window 12 are exposed to the outside in the finished flexible flat cable 50 shown in FIG. 4. The first and second conductors are drilled in consideration of the width of the part 11" and the width of the second exposed part 12", and the conductive wires are exposed to the outside in the finished flexible flat cable 50 shown in FIG. The width W1 of the exposed conductor portions 11" and 12" is formed to correspond to the size of a connector (not shown) into which the exposed conductor portion is fitted.

The non-perforated portion 13 must have a size such that the first and second exposed windows 11 and 12 are not deformed in the process of bonding the upper film 10 and the lower film 20 with a width W3. .

(B) Supplying a plurality of conductive wires 30 aligned between the upper film 10 and the lower film 20, and using the heat bonding rollers R1 and R2, the upper film 10 and the lower film 20 By compressing the upper film 10 and the lower film 20, the upper film 10 and the lower film 20 are bonded to each other while the conducting wire 30 is disposed between the upper film 10 and the lower film 20.

(C) Thereafter, as shown in FIG. 2, using a slitting cutter 70 to form a flexible flat cable stream 45 having a predetermined horizontal width d2, the upper film 10 and the lower film ( Slitting both side ends of the flexible flat cable stream 40 to which 20) is bonded.

In this case, the horizontal width d2 of the flexible flat cable stream 45 with both side ends slitting is formed to be narrower than the horizontal length D1 of the first exposed window 11.

Thereby, the 1st exposed window 11 and the 2nd exposed window 12 become the 1st conductor exposure part 11' and the 2nd conductor exposure part 12', respectively, and the 1st exposure window 11 The non-perforated part 13 between the and the second exposed window 12 becomes the peel-up prevention film base material part 13 ′ disposed between the first exposed part 11 ′ and the second exposed part 12 ′. .

(D) Thereafter, as shown in FIG. 3, by cutting the peel-off prevention film base material portion 13' of the flexible flat cable stream 45 with both side ends slitting, as shown in FIG. A peel-off prevention flexible flat cable finished product 50 with a peel-off prevention film 13" attached to one of the tip of the first exposed part 11' and the tip of the second exposed part 12'. Complete.

That is, as shown in FIGS. 1 and 3, in the flexible flat cable stream 45 having both side ends slitting, the first conductor exposed portion 11' first reaches the cutting device 80, and the cutting device A vision camera (not shown) photographs the first conductor wire exposed portion 11 ′ of the flexible flat cable stream 45 reaching 80, and an image captured by a control unit (not shown) in the vision camera is captured. When transmitted, the control unit not only displays the first conductor wire exposed portion on the display device (not shown), but also displays the peel-off prevention film base material portion based on the first parting reference line GL1 of the first conductor wire exposed portion 11 ′. 13'), a first parting line PL1 (shown as a double-dashed chain line) is set, and the cutting device 80 (see FIG. 1) is used for the first parting line PL1 of the peel-off prevention film base material part 13'. Will be cut.

Thereafter, the flexible flat cable stream 45 is slightly further conveyed in the direction of the arrow 47 of FIG. 3, so that the second conductor exposed portion 12' of the flexible flat cable stream 45 is conveyed to the cutting device, When a vision camera photographs the second conductor exposed portion 12' of the flexible flat cable stream 45 and transmits an image taken from the vision camera to the controller, the controller not only displays the second conductor exposed portion on the display device. In addition, a second parting line PL2 of the peel-off prevention film base material part 13 ′ is set based on the second parting reference line GL2 of the second conductive wire exposed part 12 ′, and a cutting device 80; 1) cuts the second parting line PL2 of the peel-off prevention film base material part 13'.

In this way, the first parting line PL1 of the peel-off prevention film base material part 13 ′ is cut based on the first parting reference line GL1 of the first wire exposed part 11 ′ to expose the first wire. A peel-off prevention film 13" having a predetermined vertical width W4 is attached to the tip of the part 11 ′, based on the second parting reference line GL2 of the second conductor exposed part 12 ′. Peel-off prevention film 13" having a predetermined vertical width W5 at the tip of the second conductor exposed part 12' by cutting the second parting line PL2 of the base material part 13' ) Is attached to the peel-off prevention flexible flat cable of Figure 4 it is possible to make the finished product (50).

The vertical width W5 of the peel-off prevention film 13" attached to the tip of the second exposed portion 12' is 0.15 mm to 1 mm.

Here, the vertical width W5 of the peel-off preventing film 13" is determined by the width W1 of the second exposed portion 12', and the width W1 of the second exposed portion 12' ), the smaller the vertical width W5 of the peel-off prevention film 13". And, when the vertical width (W5) is less than 0.15mm, not only a problem occurs in the adhesion of the peel-off prevention film 13" attached to the second conductor exposed part 12', as well as the peel-off prevention film 13" In the process of cutting the peel-off prevention film base material part 13' to form a deformation, the peel-off prevention film 13" occurs.

In addition, since the second conductor exposed portion 12' is formed in consideration of the size of the current connector, the size of the second conductor exposed portion 12' is limited, and thus the length of the peel-off prevention film 13" The width W5 does not exceed 1 mm at the maximum.

As another alternative, by cutting the first parting reference line GL1 of the first conductor exposed portion 11 ′, the peel-off prevention film is not attached to the tip of the first conductor exposed portion 11 ′, and the second conductor The second parting line PL2 of the peel-off prevention film base material part 13 ′ is cut based on the second parting reference line GL2 of the exposed part 12 ′, It is possible to make the finished product 50 of the peel-off prevention flexible flat cable of FIG. 5 to which the peel-off prevention film 13" having a predetermined vertical width W5 is attached to the tip.

As another alternative, a mold is used instead of the cutting device to complete the finished peel-off flexible flat cable 50 of FIG. 6. That is, by cutting the peel-off prevention film base material part 13 in the flexible flat cable stream 45 with slitting both side ends shown in FIG. 3 with a mold (not shown), as shown in FIG. 1 A peel-off prevention film 13" having a predetermined vertical width W4 is attached to the tip of the exposed part 11 ′, and a predetermined vertical width W5 is attached to the tip of the second exposed part 12 ′. ) With the peel-off prevention film 13" attached thereto, the peel-off prevention flexible flat cable finished product 50 of FIG. 5 can be completed.

Referring to FIG. 7, in the manufacturing method of the peel-off preventing flexible flat cable according to the present invention as described above, (a) the first exposed window 11 and the second exposed forming a pair on the upper film 10 In the step of forming the non-perforated portion 13 between the windows 12, the bonding device 90 between the second bobbin B1 and the heat bonding rollers R1 and R2; schematically shown in the form of a box in FIG. 7) A reinforcing plate on the lower surface of the lower film 20 unwound from the second bobbin B1 so as to correspond to the positions of the first and second exposure windows 11 and 12 of the upper film 10. Attach (25).

The reinforcing plate 25 has a width larger than the combined area of the first and second exposed windows 11 and 12 and the non-perforated portion 13, and is the same material as the lower film 20, but is thicker than the lower film 20 It is thick and has a hard property.

By this, (b) when the step of bonding the upper film 10 and the lower film 20 is passed so that the conductive wire 30 is disposed between the upper film 10 and the lower film 20, FIG. As shown, the reinforcing plate 25 attached to the lower surface of the lower film 20 is disposed at a position corresponding to the positions of the first and second exposed windows 11 and 12 of the upper film 10.

Referring to FIG. 9, in the method of manufacturing a peel-off preventing flexible flat cable according to the present invention as described above, a bonding device 90 between the heat bonding rollers R1 and R2 and the slitting cutter 70; FIG. 7 In the form of a box), and in the state where the upper film 10 and the lower film 20 are bonded, the first and second exposed windows 11 and 12 of the upper film 10 To correspond, the reinforcing plate 25 is attached to the lower surface of the lower film 20.

The method of manufacturing a peel-off preventing flexible flat cable according to the present invention as described above, and the peel-off preventing flexible flat cable manufactured according to the above, a process of separately attaching a reinforcing film in the middle of the exposed window to prevent peel-off of the conductor. It can be omitted, and there is an advantage of being able to appropriately select the vertical width of the peel-off prevention film attached to the tip of the exposed part of the wire according to the size of the exposed part of the route.

B1: 1st bobbin B2: 2nd bobbin
10; Upper film 20: lower film
30: lead wire R1, R2: heat bonding roller
40: flexible flat cable stream 50: flexible flat cable finished product
70: slitting cutter 80: cutting device

Claims (9)

(A) A pair of first and second exposure windows 11 and 12 are perforated at regular intervals (S1) in the upper film 10 unwound from the first bobbin B1, thereby forming a pair of first exposure windows. Forming a non-perforated portion 13 between (11) and the second exposed window 12,
(B) Supplying a plurality of conductive wires 30 aligned between the upper film 10 and the lower film 20, and using the heat bonding rollers R1 and R2, the upper film 10 and the lower film 20 Bonding the upper film 10 and the lower film 20 in a state in which the conducting wire 30 is disposed between the upper film 10 and the lower film 20 by pressing
(C) A flexible flat cable stream in which the upper film 10 and the lower film 20 are joined using a slitting cutter 70 to form a flexible flat cable stream 45 having a predetermined horizontal width d2. (40) slitting both side ends,
(D) By cutting the peel-off prevention film base material portion 13' of the flexible flat cable stream 45 with both side ends slitting, at least the front end of the first conductor exposed portion 11' and the second conductor exposed portion It consists of a step of completing a peel-off prevention flexible flat cable finished product 50 to which a peel-off prevention film 13" is attached to any one of the tips of (12'),
(D) By cutting the peel-off prevention film base material portion 13' of the flexible flat cable stream 45 with both side ends slitting, at least the front end of the first conductor exposed portion 11' and the second conductor exposed portion In the step of completing the finished peel-off prevention flexible flat cable 50 with a peel-off prevention film 13" attached to any one of the tips of (12'),
The first conductor exposed portion 11' of the flexible flat cable stream 45 with both side ends slitting first reaches the cutting device 80, and the flexible flat cable stream reaching the cutting device 80 ( 45), when a vision camera photographs the first conductor exposed portion 11' and transmits an image captured by the vision camera to the controller, the controller not only displays the first conductor exposed portion on the display device, but also displays the first conductor exposed portion. The first parting line PL1 is set on the peel-off prevention film base material part 13 ′ based on the first parting reference line GL1 of (11'), and the cutting device 80 is used for the peel-off prevention film base material part. The first parting line PL1 of (13') is cut,
Thereafter, the flexible flat cable stream 45 is further transferred, so that the second conductor exposed portion 12 ′ of the flexible flat cable stream 45 is transferred to a cutting device, and the flexible flat cable stream 45 is 2 When the vision camera captures the lead wire exposure unit 12 ′ and transmits the image captured by the vision camera to the control unit, the control unit displays the second lead wire exposure unit on the display device as well as The second parting line PL2 of the peel-off prevention film base material part 13 ′ is set based on the second parting reference line GL2 of the, and the cutting device 80 is used for the peel-off prevention film base material part 13 ′. A method of manufacturing a peel-off prevention flexible flat cable, characterized in that the second parting line (PL2) is cut.
The method of claim 1,
(C) A flexible flat cable stream in which the upper film 10 and the lower film 20 are joined using a slitting cutter 70 to form a flexible flat cable stream 45 having a predetermined horizontal width d2. In the step of slitting both side ends of (40), the first exposed window 11 and the second exposed window 12 are formed with the first exposed portion 11' and the second exposed portion 12', respectively. And the non-perforated portion 13 between the first exposed window 11 and the second exposed window 12 is disposed between the first exposed portion 11 ′ and the second exposed portion 12 ′ to prevent fill-up A method of manufacturing a peel-off prevention flexible flat cable, characterized in that it becomes a film base material part (13').
delete The method of claim 1,
The first parting line PL1 of the peel-off prevention film base material part 13 ′ is cut based on the first parting reference line GL1 of the first wire exposed part 11 ′, and the first wire exposed part 11 A peel-off prevention film 13" having a predetermined vertical width W4 is attached to the tip of'), and peel-off is prevented based on the second parting reference line GL2 of the second conductor exposed part 12'. By cutting the second parting line PL2 of the film base part 13', a peel-off prevention film 13" having a predetermined vertical width W5 is attached to the tip of the second exposed part 12'. A method of manufacturing a peel-off prevention flexible flat cable, characterized in that the finished peel-off prevention flexible flat cable 50 is completed.
(A) A pair of first and second exposure windows 11 and 12 are perforated at regular intervals (S1) in the upper film 10 unwound from the first bobbin B1, thereby forming a pair of first exposure windows. Forming a non-perforated portion 13 between (11) and the second exposed window 12,
(B) Supplying a plurality of conductive wires 30 aligned between the upper film 10 and the lower film 20, and using the heat bonding rollers R1 and R2, the upper film 10 and the lower film 20 Bonding the upper film 10 and the lower film 20 in a state in which the conducting wire 30 is disposed between the upper film 10 and the lower film 20 by pressing
(C) A flexible flat cable stream in which the upper film 10 and the lower film 20 are joined using a slitting cutter 70 to form a flexible flat cable stream 45 having a predetermined horizontal width d2. (40) slitting both side ends,
(D) By cutting the peel-off prevention film base material portion 13' of the flexible flat cable stream 45 with both side ends slitting, at least the front end of the first conductor exposed portion 11' and the second conductor exposed portion It consists of a step of completing a peel-off prevention flexible flat cable finished product 50 to which a peel-off prevention film 13" is attached to any one of the tips of (12'),
(D) By cutting the peel-off prevention film base material portion 13' of the flexible flat cable stream 45 with both side ends slitting, at least the front end of the first conductor exposed portion 11' and the second conductor exposed portion In the step of completing the finished peel-off prevention flexible flat cable 50 with a peel-off prevention film 13" attached to any one of the tips of (12'),
By cutting the first parting reference line GL1 of the first exposed part 11 ′, the peel-off prevention film is not attached to the tip of the first exposed part 11 ′, and the second exposed part 12 ') by cutting the second parting line PL2 of the peel-off prevention film base material part 13' based on the second parting reference line GL2 of'), A method of manufacturing a peel-off prevention flexible flat cable, characterized in that a finished product 50 of a peel-off prevention flexible flat cable to which a peel-off prevention film (13") having a vertical width (W5) is attached is completed.
delete The method of claim 1,
(A) In the step of forming the non-perforated portion 13 between the first exposed window 11 and the second exposed window 12 forming a pair on the upper film 10, heat bonding with the second bobbin (B1) The second bobbin B1 is arranged so as to correspond to the positions of the first exposure window 11 and the second exposure window 12 of the upper film 10 by arranging the bonding device 90 between the rollers R1 and R2. A method of manufacturing a peel-off preventing flexible flat cable, characterized in that a reinforcing plate 25 is attached to the lower surface of the lower film 20 that is unwound in the.
The method of claim 1,
By disposing a bonding device 90 between the heat bonding rollers R1 and R2 and the slitting cutter 70, the upper film 10 and the lower film 20 are bonded to each other, A method of manufacturing a peel-off preventing flexible flat cable, characterized in that a reinforcing plate 25 is attached to the lower surface of the lower film 20 so as to correspond to the positions of the first and second exposed windows 11 and 12.
A peel-off prevention film produced by any one of claims 1, 2, 4, 5, 7 and 8 and attached to the tip of the second exposed portion (12') ( 13") of the vertical width (W5) is 0.15mm ~ 1mm, characterized in that the peel-off prevention flexible flat cable.

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