JP4628936B2 - Method for wiring flat wires made of flexible wiring boards - Google Patents

Description

  The present invention relates to a flat wire routing method for forming a flat wire having the same function as a conventional wire harness in a state where a connector is connected to a terminal of a conductor of a flexible wiring board (FPC).

  Conventionally, wire harnesses in which electric wires are bundled are used for wiring of automobiles, and wiring and fixing of wire harnesses and electrical connection with various electrical devices and electronic components have been performed in the automobile manufacturer's automobile manufacturing process. However, with the recent development of modularization, for example, it is modularized according to parts such as automobile doors, instrument panels, roofs, etc., and delivered in advance to car manufacturers with necessary parts such as harnesses and various electrical equipments assembled by module manufacturers. It was way. Although the components are the same as described above, a module assembled in advance by a module manufacturer is called a sub-assy type module. With the advent of sub-assy type modules, the number of parts to be assembled on the car body of a car maker has been reduced, and the number of assembly steps has been reduced. Furthermore, in the future, it is predicted that progress will be made to a function-integrated module in which a plurality of components are combined to integrate a plurality of functions, or a function-integrated module having a plurality of functions in one component. Such function-integrated modules and function-integrated modules can be reduced in size and weight by reducing the number of assembly steps at a car manufacturer, and by reducing the number of module components. As a part of the measures, it is considered to be a powerful means that can be realized at the same time as fuel efficiency improvement is very high.

  In the progress of modularization described above, it is attempted to reduce the thickness and weight by using an FPC instead of the conventional wire harness. By adopting FPC for the module, in addition to reducing the weight of the wiring material, it is possible to reduce the size and weight of the module main body, so that the needs for applying FPC to the module are extremely high. Before the development of modularization, the wire harness was directly assembled on the vehicle body side, so that the vehicle body is large and a large FPC is required, or the vehicle body side can be designed to have a structure that allows the FPC to be assembled well. Because it was difficult, it was difficult to adopt FPC, but the modularization of each part of the vehicle has made it possible to apply small FPC, and the module side has a structure that allows FPC to be assembled well. Since it can be designed, FPC can be adopted.

As described above, a flat wire made of FPC has been attracting attention as a wiring material for a module. As a conventional example of a method for arranging a flat wire in a module housing, a connector connected to a flat wire terminal is used. Positioned in a state where a flat wire harness is stretched on the bottom surface by providing a tray-shaped protective material with a recessed portion for fitting the connector at a required position on the bottom surface, and fitting a connector into the concave portion of the protective material A method is known in which a flat wire harness is routed to a panel to be attached in a state where the flat wire harness is held and stored in the protective material. This is because a fixing portion is provided at a required position on the outer peripheral edge of the protective material, and a plurality of protective materials are detachably held by the holding portion of the conveying means on the assembly line via the fixing portion, and the panel to be attached Then, the protective material is sequentially removed from the holding portion of the conveying means, and is fixed to the mounted panel by the fixing portion of the protective material (see Patent Document 1).
Japanese Unexamined Patent Publication No. 7-115720 (page 3, FIG. 1)

  In the conventional example, the fixing part of the protective material to the mounted panel is only the outer peripheral portion, and the shape of the mounted panel is not flat, for example, a curved shape such as the back of the instrument panel housing, There is a problem that the following installation is difficult. Further, when the protective material is fixed to the curved surface portion of the panel to be attached, the protective material cannot follow the curved surface shape, which causes inconveniences such as generation of abnormal noise due to vibration, disconnection, and an increase in occupied space. Further, since the protective material is also attached to the mounted panel, one protective material is required for each FPC, and the protective material cannot be reused, resulting in an increase in cost.

  SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a flat wire routing method in which a flat wire made of FPC can be assembled following a curved surface shape, and it is not necessary to fix a protective material to the curved surface portion. And

  In order to achieve the above-mentioned object, the present invention provides a method for attaching and routing a flat wire made of a flexible wiring board to a panel to be mounted. Was formed, and the jig was mounted on the mounted panel with the flat wire received in the groove of the jig, and the flat wire was fixed to the mounted panel with the jig mounted. The jig is removed later.

  The present invention relates to a method of attaching and routing a flat wire made of a flexible wiring board to a mounted panel, and a groove for temporarily accommodating the flat wire in a jig having a shape following the three-dimensional shape of the mounted panel. The jig was mounted on the mounted panel with the flat wire contained in the groove of the jig, and the jig was removed after the flat wire was fixed to the mounted panel in the jig mounted state. Therefore, batch wiring of flat wires to the panel to be mounted can be easily performed. In addition, it is possible to follow the curved surface of the mounted panel, and as usual, by fixing a flat tray-shaped protective material to the mounted panel, it is not possible to follow the curved surface, and abnormal noise is generated by vibration. There are no inconveniences such as the occurrence of problems, disconnection, and increased space.

  Embodiments of the present invention will be described below with reference to the drawings.

  FIG. 1 shows a state in which an instrument panel of an automobile is a mounted panel 1 and a flat wire 2 made of a flexible printed circuit board (FPC) is fixed on the back side of the mounted panel 1 by using fixing holes 3. A perspective view is shown. In this case, a center cluster and a meter in which a glove box, a navigation system, a radio, an MD performance device, and the like are integrated are attached to the openings 4, 5, and 6 of the mounted panel 1, respectively. Further, connectors 7, 8, and 9 are connected to the ends of the branched FPC conductors in these openings 4 to 6, and are electrically connected to glove box equipment (internal lighting, key lock, etc.). The center cluster and meter are also electrically connected. In general, such electrical connection is generally achieved when the auxiliary devices such as a meter are mounted with the jig 10 (to be described later) removed, and the connectors 7 to 9 are manually operated before mounting the auxiliary devices. After being pulled out and connected to the auxiliary machines, the auxiliary machines are mounted on the panel 1 to be mounted.

  FIG. 2 is a perspective view of the flat wire 2 and the jig 10 that accommodates the flat wire 2. The flat wire 2 is held in a specific shape so that the flat wire 2 follows the curved surface shape of the panel 1 to be attached, and the flat wire 2 is held in a specific shape so that the flat wire 2 is fitted to the back side of the panel 1 to be fitted. A jig 10 having a shape following the shape of the mounting panel 1 is used. The jig 10 is formed with a groove 11 for receiving the flat wire 2. Further, the groove 11 corresponds to a mounting portion of the flat wire 2 of the mounted panel 1. When the jig 10 is mounted on the back side of the mounted panel 1 as shown in FIG. 4 with the flat wire 2 accommodated in the groove 11 as shown in FIG. The flat wire 2 is located at a site where the wire 2 is attached and fixed. At this time, since the jig 10 is preliminarily formed into a shape following the three-dimensional shape of the back side of the mounted panel 1, the jig 10 is fitted tightly and the flat wire 2 is set at the mounting position of the mounted panel 1. At the same time, it is in a state of being collectively routed. In this state, the flat wire 2 is fixed to the mounted panel 1 using the holes 3 of the flat wire 2 (various means can be adopted).

  A first embodiment of a method of fixing the flat wire 2 to the mounted panel 1 is shown in the cross-sectional views of FIGS. FIG. 6 is a schematic cross-sectional view of the jig 10 that accommodates the flat wire 2 in the state shown in FIG. 4 and the location of the panel 1 to be attached (the location of the hole 3 in the flat wire 2). Is added. A through-hole 12 is formed at a position corresponding to the fixing hole 3 of the flat wire 2 of the jig 10, and a fixing jig 14 having a rod 13 inserted into the through-hole 12 is prepared. A plurality of bosses 15 to be inserted into the holes 3 of the flat wire 2 are formed on the back surface of the panel 1. When the jig 10 is mounted on the mounted panel 1 as shown in FIG. 7, the boss 15 is inserted from the hole 3 of the flat wire 2 into the through hole 12. Thereafter, by moving the fixing jig 14 to the position shown in FIG. 8, the boss 15 is crushed (deformed) by the rod 13, and the deformed portion becomes larger than the hole 3. When the jig 10 and the fixing jig 14 are removed from the mounted panel 1 in this state, the flat wire 2 is fixed to the mounted panel 1 by the bosses 15 as shown in FIG.

  As a second form of fixing method using the fixing hole 3 of the flat wire 2, as shown in the cross-sectional views of FIGS. 10 to 12, the boss 15 has a swelling head 15A having a size of about the size of the hole 3. The bulging head 15A is fitted into the clip 16 after passing through the hole 3, and the boss 15 is prevented from coming off by the presence of the clip 16. In the fixing method of the second embodiment, as shown in FIG. 10, the clip 16 is set in the hole 10 </ b> A of the jig 10 in advance, and the hole 3 of the flat wire 2 is aligned with the clip 16. The flat wire 2 is set to 10 and the jig 10 is attached to the panel to be attached 1 as shown in FIG. At this time, the boss 15 of the mounted panel 1 passes through the hole 3 of the flat wire 2 and the clip 16 and is inserted into the hole 10 </ b> A of the jig 10. Next, when the jig 10 is removed from the mounted panel 1, the clip 16 is attached to the boss 15 as shown in FIG. 12, and the flat wire 2 is fixed to the mounted panel 1 at a time.

  As still another fixing method, a third embodiment in which the clip 16 is provided at the hole 3 of the flat wire 2 is shown in the cross-sectional views of FIGS. The swollen head 15A of the boss 15 is fitted into the clip 16 after passing through the clip 16, and the boss 15 is prevented from coming off due to the presence of the clip 16. As shown in FIG. 13, the clip 16 is attached to each hole 3 of the flat wire 2, and the flat wire 2 is set in the jig 10 so that these holes 3 are aligned with the holes 10 </ b> A of the jig 10. To do. Then, as shown in FIG. 14, the jig 10 on which the flat wire 2 and the clip 16 are set is mounted on the panel 1 to be mounted. At this time, the bulging head 15A of the boss 15 is inserted through the hole 3 and the clip 16 up to the hole 10A. Thereafter, when the jig 10 is removed from the mounted panel 1, the clip 16 is attached to the boss 15 as shown in FIG. 15, and the flat wire 2 is fixed to the mounted panel 1 at a time.

  Furthermore, as a fourth embodiment of the method for fixing the flat wire 2 to the mounted panel 1, there is a method shown in the cross-sectional views of FIGS. This is a fixing method using the deformation of the boss 15 and the clip 16, and the clip 16 is attached to the boss 15 by the rod 13 described above. In FIG. 16, a rod part having a tip opened at the tip of the rod 13 shown in the first embodiment of FIGS. 6 to 8 is formed, and a clip 16 is set on this tube part, and the rod 13 having no tip formed at the tip is shown in FIG. The fixing method of the first embodiment shown in FIGS. 6 to 8 is adopted. When the jig 10 in the state shown in FIG. 16 is attached to the panel 1 to be attached, the boss 15 is inserted into the through hole 12 from the hole 3 as shown in FIG. When the fixing jig 14 is pushed in from the state of FIG. 17, the boss 15 that does not have the swelling head 15 </ b> A is crushed as shown in FIG. 18, and the swelling head 15 </ b> A passes through the clip 16 and fits into the clip 16. Include. Thereafter, when the jig 10 and the fixing jig 14 are removed from the mounted panel 1, the flat wire 2 is collectively fixed to the mounted panel 1 as shown in FIG. 19.

  The form relating to the fixing method of the flat wire 2 described above is not limited to the combination of the fourth form, and several combinations of the first to third forms are possible. By adopting these fixing methods, not only batch wiring of the flat wire 2 but also batch fixing becomes possible, and the fixing work of the flat wire 2 to the mounted panel 1 can be automated, and the work efficiency is remarkably improved. improves.

  The fixing hole 3 described above is formed in the FPC main body of the flat wire 2. However, as shown in FIG. 20, the tongue piece 17 protrudes from the FPC, and the hole 3 can be formed in the tongue piece 17. . These tongue pieces 17 are formed of the same material as the FPC. FIG. 21 shows an example in which the hole 3 of the FPC main body and the hole 3 of the tongue piece 17 are combined.

  22 and 23, the connectors 7 to 9 are temporarily fixed to the jig 10, and the auxiliary equipment such as the center cluster and the meter is in a standby connection (electrical connection simultaneously with mechanical fixing of each auxiliary equipment). Is also completed). Specifically, the setting holes 18 of the connectors 7 to 9 are formed in the jig 10, and the connectors 7 to 9 are set in the setting holes 18, respectively. The set positions of the connectors 7 to 9 coincide with the connection positions with the auxiliary equipment such as the center cluster 20 and the meter 30, and the flat wire 2 is collectively wired and fixed to the mounted panel 1 by the jig 10. Then, before removing the jig 10, by fixing the auxiliary machinery such as the center cluster 20 and the meter 30, the connectors of the auxiliary machinery such as the center cluster 20 and the meter 30 ( (Not shown) are connected simultaneously with fixing of the auxiliary machinery. When the jig 10 is removed from the mounted panel 1 after the auxiliary machines are fixed, the flat wire 2 is collectively routed and fixed, and the connector connection with the auxiliary machines such as the center cluster 20 and the meter 30 is completed. In addition, although the taper T is formed in the opening front surface of the connectors 7-9, and the centering function is given, the taper T is not formed on the connectors 7-9 side, but the connector of the other auxiliary machine is tapered. May be formed. Further, standby connection is possible even in a procedure in which auxiliary machines are fixed to the mounted panel 1 in advance and the jig 10 containing the flat wire 2 is mounted on the mounted panel 1 in this state. In this way, the connector is connected simultaneously with the fixing of the center cluster 20 and the meter 30 using the jig 10, and then the jig 10 is removed from the mounted panel 1, so that the center is removed with the jig 10 removed. When installing auxiliary equipment such as the cluster 20 and the meter 30 (before installing the auxiliary equipment, after the connectors 7 to 9 are pulled out by hand and connected to the auxiliary equipment, the auxiliary equipment is attached to the mounted panel 1. Compared to mounting), the man-hours for connecting the connector become unnecessary.

  In the example shown in FIGS. 24 to 26, a hinge member 19 is formed in advance in predetermined openings 4 and 5 among the openings 4 to 6 of the mounted panel 1, and the flat wire 2 is fixed to the mounted panel 1 ( Alternatively, after temporarily fixing) (see FIG. 25), the hinge members 19 are folded back and fixed and protected by sandwiching the flat wire 2 with the hinge members 19 (see FIG. 26). In order to bend the hinge member 19 on the back side and fix the hinge member 19 to the panel 1 to be attached, the state shown in FIG. 26 can be obtained by various means such as engagement and adhesion between the projection and the hole. it can. By forming such a hinge member 19 on the mounted panel 1 in advance, it is possible to simultaneously fix and protect the flat wire 2 to the mounted panel 1 without increasing the number of parts.

The perspective view of the state which wired the flat wire to the to-be-attached panel. The perspective view which shows a jig | tool and a flat wire. The perspective view which accommodated the flat wire in the groove | channel of the jig | tool. The perspective view which is going to mount | wear the whole panel shown in FIG. 3 to a to-be-attached panel. The perspective view which mounted | worn the jig | tool to the to-be-attached panel. The cross-sectional schematic diagram which shows an example of the fixing method of a flat wire. FIG. 7 is a schematic cross-sectional view in which a jig is mounted on a mounted panel from the state of FIG. 6. The cross-sectional schematic which deform | transformed the boss | hub of the to-be-attached panel. The cross-section schematic which deform | transformed the boss | hub of the to-be-attached panel, and fixed the flat wire to the to-be-attached panel. The cross-sectional schematic which shows the other fixing method of a flat wire. FIG. 11 is a schematic cross-sectional view in which a jig is mounted on a mounted panel from the state of FIG. 10. The cross-sectional schematic which fixed the flat wire to the to-be-attached panel. The cross-sectional schematic diagram which shows another flat wire fixing method. FIG. 14 is a schematic cross-sectional view in which a jig is mounted on a mounted panel from the state of FIG. 13. The cross-sectional schematic which fixed the flat wire to the to-be-attached panel. The cross-sectional schematic which shows the further another example of the fixing method of a flat wire. FIG. 17 is a schematic cross-sectional view in which a jig is mounted on a mounted panel from the state of FIG. 16. The cross-sectional schematic of the state which deform | transformed the boss | hub of the to-be-attached panel, and inserted the boss | hub into the clip. The cross-sectional schematic of the state which fixed the flat wire to the to-be-attached panel. The front view which shows the other example of a flat wire. The front view which shows another example of a flat wire. The perspective view which shows the example using the jig | tool provided with the temporary stop of the standby connector. The expansion perspective view of a standby connector part. The perspective view of the to-be-attached panel which shows another example. The back view of the to-be-attached panel of an opening part. The back view of the to-be-attached panel of the state which bent the hinge member and fixed the flat wire.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Panel to be attached 2 Flat wire 3 Hole 4-6 Opening 7-9 Connector 10 Jig 11 Groove

Claims (6)

In a method of attaching and wiring a flat wire made of a flexible wiring board to a panel to be attached,
Form a groove that temporarily accommodates a flat wire in a jig shaped like the three-dimensional shape of the mounted panel,
Attach the jig to the panel to be mounted with the flat wire in the groove of this jig,
A flat wire routing method comprising a flexible wiring board, wherein the jig is removed after the flat wire is fixed to the mounting panel in a state where the jig is mounted.   A plurality of bosses are provided on the panel to be mounted, and fixing holes for inserting these bosses into flat wires are formed, the bosses are deformed so as not to come out of the holes, and / or clips are fitted to the bosses. 2. The flat wire routing method comprising a flexible wiring board according to claim 1, wherein the flat wire is fixed to the mounted panel so as not to come out of the hole.   A fixing jig provided with rods inserted into the through holes from the back side, wherein the bosses of the mounted panel according to claim 2 are formed in the jigs through holes inserted through the holes of the flat wire. 3. The flexible wiring according to claim 1, wherein the flexible boss is mounted on a jig and crushed all or a part of the boss with the tip of the rod so that the crushed boss does not come out of the hole of the flat wire. A flat wire installation method consisting of substrates.   A bulging head is formed on all or part of the boss of the mounted panel according to claim 2, a hole of a flat wire is passed through the bulging head, and the bulging head is placed on a hole or a clip disposed on the back side of the hole The flat wire routing method comprising a flexible wiring board according to any one of claims 1 to 3, wherein the boss is prevented from slipping out of the hole of the flat wire.   5. A stand-by connector connected to a terminal of a conductor of a flexible wiring board from which the flat wire branches is attached, and the stand-by connector can be temporarily fixed to a jig. A flat wire routing method comprising the flexible wiring board according to the item.   6. A hinge member for folding and fixing a flat wire to a panel to be mounted is formed by folding the mounting panel on a mounting opening of a device to be mounted on the back side. A flat wire routing method comprising the flexible wiring board according to the item.

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