JP2002050235A - Tflat cable and its manufacturing method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a flat cable easy to separate and discompose, at the time of disassembling a plastic part and a linear conductor in a recyclable state. SOLUTION: The flat cable 10A is provided with an insulating film main body 5 protrusively placed on its one side in parallel with location notches 3, a plurality of linear conductors 7 housed and arranged in the respective location notches and long lengths of insulating film bracings 9 fitted into respective location notches 3 from the upper part of a linear conductor 7.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a flat cable which can be easily separated and dismantled, and a method for manufacturing the same.

[0002]

2. Description of the Related Art Conventionally, a flat cable has been known as a cable developed for the purpose of saving space and weight. This flat cable is composed of a plurality of flat rectangular conductors arranged in parallel, mainly from both sides.
The polyester films on both sides were bonded to each other with an adhesive so as to be sandwiched between polyester films having T (polyethylene terephthalate) or the like as a base material. As the adhesive used at that time, an adhesive to which a material different from the above-mentioned base material or a flame-retardant filler has been added has been used.

[0003]

However, in the above-described flat cable configuration, when the flat cable is disassembled, it can be separated into a conductor portion such as a linear conductor and a plastic portion such as a base material. However, since it is impossible to further separate the base material and the adhesive adhered to the base material in the plastic portion, there is a problem that the plastic portion cannot be recycled and reused.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a flat cable which can be easily separated and disassembled in a recyclable state at the time of disassembly, and a method of manufacturing the same.

[0005]

In order to solve the above-mentioned problems, according to the first aspect of the present invention, a positioning groove recessed on one side along the longitudinal direction thereof has a predetermined width. A plurality of strip-shaped insulating film main bodies arranged in parallel at intervals, a plurality of linear conductors accommodated and arranged in the respective positioning grooves, and fitted and fixed to the respective positioning grooves from above the linear conductors. And a plurality of long insulating film pressing members.

According to a second aspect of the present invention, ridges are formed on both outer surfaces of each of the long insulating film pressing members along the longitudinal direction of the outer surfaces, respectively. In the state where the concave streak portions are formed on both inner side surfaces along the longitudinal direction of the inner side surfaces, respectively, and the respective elongated insulating film pressing members are fitted into the respective positioning grooves from above the linear conductor, The protruding ridge of the long insulating film pressing member is engaged and fixed to the concave ridge of the positioning groove.

According to a third aspect of the present invention, there is provided a flat cable manufacturing method for manufacturing the flat cable according to the first or second aspect, wherein a wire is provided in each of the positioning grooves formed in the insulating film body. And a step of fitting and fixing the long insulating film pressing member from above the linear conductor into each of the positioning grooves.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS <First Embodiment> A first embodiment of the present invention will be described below with reference to FIGS. Figure 1
FIG. 2 is a partial perspective view of the flat cable according to the first embodiment of the present invention, and FIG. 2 is an exploded cross-sectional view of the flat cable according to the first embodiment of the present invention.

A flat cable 10 according to this embodiment
1A and 1B, a band-shaped insulating film body 5 in which a plurality of positioning grooves 3 are recessed in parallel on one surface side (the upper surface side in the figure) on one surface side, as shown in FIGS. It comprises a plurality of arranged linear conductors 7 and a plurality of elongated insulating film pressing members 9 fitted into the respective positioning grooves 3 from above the linear conductors 7.

The insulating film main body 5 is formed of a resin material having an insulating property such as PET (polyethylene terephthalate) into a belt shape having an appropriate thickness (dimension in the z direction). This thickness is set according to, for example, the depth of the positioning groove 3 provided in the insulating film main body 5.

On one side of the insulating film body 5, the plurality of positioning grooves 3 are arranged side by side at predetermined intervals in the width direction (x direction) of the insulating film body 5, and each of the positioning grooves 3 is provided on the insulating film body 5. It is recessed along the longitudinal direction (y direction).

Here, the cross-section of each positioning groove 3 is formed, for example, in a concave shape, and the depth thereof is set to be larger than the thickness width (width in the z direction) of the linear conductor 7, and a line is formed therein. The length is set in consideration of the fact that the elongated insulating film pressing member 9 is fitted from above where the conductor 7 is housed and arranged. The width of the groove is set slightly larger than the width (width in the x direction) of the linear conductor 7 so as to fit the linear conductor 7.

Each of the linear conductors 7 has, for example, a rectangular shape (flat conductor) having a flat cross section, and is housed and arranged along the bottom surface of the positioning groove 3 in a fitting manner.

Each of the long insulating film pressing members 9 is formed of, for example, a rod having a rectangular cross section from an insulating resin material such as PET (polyethylene terephthalate), which is the same material as the insulating film body 5.

The elongated insulating film pressing member 9 is formed so as to be closely fitted to the positioning groove 3 while being fitted into the positioning groove 3 from above the linear conductor 7, whereby the elongated insulating film holding member 9 is formed. The linear conductor 7 is sealed and insulated by the insulating film pressing member 9 and the positioning groove 3, and is held in the positioning groove 3 so that the elongated insulating film pressing member 9 does not fall off the positioning groove 3. It is supposed to be.

The long insulating film pressing member 9
Is set so that the upper surface of the long insulating film pressing member 9 and the upper surface of the insulating film main body 5 are approximately flat when fitted in the positioning groove 3.

Next, a method of manufacturing the flat cable 10A will be described.

First, as shown in FIG. 2, an insulating film body 5 having a plurality of positioning grooves 3 formed on one side as described above is prepared.

As shown in FIGS. 1 and 2, the linear conductor 7 is accommodated and arranged along the bottom surface in each positioning groove 3 of the insulating film main body 5. Thereby, the linear conductor 7
Is fixed in the width direction (x direction) of the insulating film body 5.

Then, the lower surface of the long insulating film pressing member 9 is pressed against the upper surface of the linear conductor 7 from above the linear conductor 7 disposed in the positioning groove 3 so as to sandwich the linear conductor 7. The long insulating film holding member 9 is positioned in the positioning groove 3
Fit inside. In this state, the long insulating film pressing member 9 fits tightly with the positioning groove portion 3, whereby the linear conductor 7 is sealed and insulated by the long insulating film pressing member 9 and the positioning groove portion 3. At the same time, the long insulating film pressing member 9 is held by the positioning groove 3 and is prevented from falling out of the positioning groove 3.

According to the flat cable 10A configured as described above, the plurality of positioning grooves 3 are recessed on one side of the insulating film main body 5, and the linear conductors 7 are accommodated and arranged in these positioning grooves 3. Since the flat cable 10A is formed by inserting the long insulating film pressing member 9 into the positioning groove 3 from above, it is not necessary to use an adhesive, and the insulating film body 5 and the long insulating film pressing member can be used. The plastic portion such as the material 9 and the linear conductor 7 can be easily separated and dismantled in a recyclable state.

According to the flat cable manufacturing method described above, the linear conductor 7 is accommodated and arranged in the positioning groove 3 formed on one side of the insulating film main body 5, and a long insulating film pressing member is placed on the linear conductor 7 from above. 9 can be easily assembled even by a human hand.

In this embodiment, the positioning grooves 3
Has been described as having a concave cross-sectional shape, and the cross-sections of the linear conductor 7 and the long insulating film pressing member 9 are each rectangular. However, the present invention is not limited to such shapes.

<Second Embodiment> Next, a flat cable according to a second embodiment of the present invention will be described with reference to FIGS. FIG. 3 is a sectional view of a flat cable according to a second embodiment of the present invention, and FIG. 4 is an exploded perspective view of the flat cable. Note that the same components as those of the flat cable 10A according to the first embodiment are denoted by the same reference numerals, description thereof will be omitted, and only different points will be described.

As shown in FIGS. 3 and 4, the flat cable 10B is provided on each of the outer surfaces 13 of the long insulating film pressing member 9 in the first embodiment, for example, with a ridge 17 having a semicircular cross section. Are formed along the longitudinal direction (y direction) of the outer surfaces 13, respectively, and concave portions 19 having a semicircular cross section are formed on the inner surfaces 15 of the positioning groove 3, respectively. The protrusions 17 formed in the elongated insulating film pressing member 9 are positioned in a state where the elongated insulating film pressing member 9 is fitted in the positioning groove 3 and is recessed along the longitudinal direction (y direction). Groove 3
The elongated insulating film pressing member 9 is engaged with the positioning groove 3 at an appropriate position of the positioning groove 3, thereby positioning the elongated insulating film pressing member 9. The linear conductor 7 is hermetically sealed and insulated by the groove 3, and the elongated insulating film pressing member 9 is held by the positioning groove 3 and is prevented from dropping out of the positioning groove 3. is there.

The manufacturing method of the flat cable 10B is as follows. When the elongated insulating film pressing member 9 is fitted into the positioning groove 3 from above the linear conductor 9, the projecting of the elongated insulating film pressing member 9 is performed. When the ridges 17 are engaged with the concave ridges 19 of the positioning groove 3, the long insulating film pressing member 9 is fitted at an appropriate position of the positioning groove 3, and
Except that the falling-off is prevented and the long insulating film pressing member 9 is harder to come off from the positioning groove 3, it is the same as the manufacturing method of the flat cable 10A described in the first embodiment, so that the detailed description here will be omitted. Omitted.

According to the flat cable 10B and the method of manufacturing the same as described above, the ridges 17 protrude from both outer surfaces 13 of the rod-shaped insulating film along the longitudinal direction (y direction) of the outer surface 13. As well as being formed, concave ridges 19 are formed on both inner side surfaces 15 of the positioning groove 3 along the longitudinal direction (y direction) of the inner side 15, and the long insulating film pressing member 9 is formed in the positioning groove 3. In the fitted state, the ridges 17 formed on both outer surfaces 13 of the long insulating film pressing member 9 engage with the concave ridges 19 formed on both inner surfaces 15 of the positioning groove 3. When the long insulating film holding member 9 is fitted into the positioning groove 3 from above the linear conductor 7, the long insulating film holding member 9 is formed.
Can be fitted to the positioning groove 3 at an appropriate position, and the long insulating film pressing member 9 can be harder to fall out of the positioning groove 3.

In this embodiment, the cross-sections of the ridges 17 formed on both outer side surfaces 13 of the rod-shaped insulating film 7 and the cross-sections of the concave ridges 19 formed on both inner side surfaces 15 of the positioning groove 3 are both shown. Although the case of a semicircle has been described, the present invention is not limited to such a cross-sectional shape. For example, FIGS.
As shown in FIG. 5, the cross sections of the ridge 17 and the concave ridge 19 may be formed into a triangular shape (a right-angled triangle in the figure) having an inclined surface that is inclined outwardly as it proceeds toward the bottom surface of the positioning groove 3. With such a shape, the same effect as in the second embodiment can be obtained. In FIGS. 5 and 6, the same components as those in the second embodiment are denoted by the same reference numerals.

[0029]

According to the first aspect of the present invention, a plurality of positioning grooves are formed on one side of the insulating film body,
A linear conductor is housed and arranged in these positioning grooves, and a flat cable is formed by fitting a long insulating film pressing member into the positioning grooves from above. The plastic portion such as the insulating film presser and the linear conductor can be easily separated and dismantled in a recyclable state.

According to the second aspect of the present invention, projections are formed on both side surfaces of the long insulating film pressing member, and concave ridges are formed on both outer surfaces of the positioning groove. In the state where the long insulating film pressing member is fitted and fixed in the positioning groove, the ridge formed on the long insulating film pressing member is engaged with the concave line formed in the positioning groove. Therefore, the long insulating film pressing member can be positioned and fitted in an appropriate position in the positioning groove, and the long insulating film pressing member can be harder to fall out of the positioning groove.

According to the third aspect of the present invention, the linear conductor is disposed in the positioning groove formed on one side of the insulating film main body, and the long insulating film pressing member is simply fitted over the linear conductor. It can be easily assembled by hand.

[Brief description of the drawings]

FIG. 1 is a partial perspective view of a flat cable according to a first embodiment of the present invention.

FIG. 2 is an exploded sectional view of the flat cable according to the first embodiment of the present invention.

FIG. 3 is a sectional view of a flat cable according to a second embodiment of the present invention.

FIG. 4 is an exploded perspective view of a flat cable according to a second embodiment of the present invention.

FIG. 5 is a sectional view of a modification of the flat cable according to the second embodiment of the present invention.

FIG. 6 is an exploded sectional view of a modification of the flat cable according to the second embodiment of the present invention.

[Explanation of symbols]

 Reference Signs List 3 positioning groove portion 5 insulating film body 7 linear conductor 9 long insulating film pressing material 10A, 10B flat cable 13 outer surface of long insulating film pressing material 15 inner surface of positioning groove portion 17 ridge 19 concave portion

Claims (3)

[Claims] 1. A band-shaped insulating film body in which a plurality of positioning grooves recessed on one side along the longitudinal direction are arranged at predetermined intervals in a width direction thereof, and are respectively housed in the positioning grooves. A flat cable, comprising: a plurality of linear conductors arranged; and a plurality of long insulating film pressing members fitted and fixed to the respective positioning grooves from above the linear conductors. 2. A ridge is formed on both outer surfaces of each of the long insulating film pressing members along a longitudinal direction of the outer surface, and a concave ridge is formed on both inner surfaces of each of the positioning grooves. Are formed along the longitudinal direction of the inner surface thereof, and in a state where the long insulating film pressing members are fitted into the positioning grooves from above the linear conductor, the long insulating film pressing member is formed. 2. The projecting ridge of a material is engaged and fixed to the concave ridge of the positioning groove.
Flat cable as described in. 3. A flat cable manufacturing method for manufacturing a flat cable according to claim 1, wherein a linear conductor is accommodated and arranged in each of the positioning grooves formed in the insulating film main body. And a step of fitting and fixing the long insulating film pressing member from above the linear conductor into each of the positioning grooves.