JPH11346424A - Support structure for flexible flat cable - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce the number of assembling processes by mounting a flexible flat cable on a thin plate-like flexuous support board to make the board support the cable. SOLUTION: On both side edges 43a of a flexuous supporting board 43 along the longitudinal direction of a flexible flat cable 39, a plurality of projections 44 are formed facing each other. These projections 44 are narrow plate-like pieces having an insertion section 45 and an L-shaped cross section, and are formed as integral parts of a substrate 46 of the board 43. The top end of each projection 44 is formed into a tapered shape 44a so that the cable 39 is easily inserted. When mounting the cable 39 on the board 43 in the direction shown by the arrow P, either of the cable 39 or the board 43 is bent in the width wise direction to insert the cable 39 into the insertion sections 45.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a flexible flat cable used in a vehicle such as an automobile, and a bending auxiliary plate attached to the flexible flat cable to follow a bending operation of the flexible flat cable. Related to the support structure.

[0002]

2. Description of the Related Art Conventionally, as a support structure of this kind, FIG.
9 is known. That is, 1 indicates a flexible flat cable, and FIG.
, The circuit body 2 is constituted by two sheets. The circuit body 2 is arranged, for example, in a power supply device that can supply power from the vehicle body to the slide door by being interposed between a vehicle body (not shown) and a slide door slidably mounted on the vehicle body. It bends and moves with the opening and closing operation. When the circuit body 2 moves while bending, the flexibility of the flexible flat cables 1 and 1 may cause the circuit body 2 to hang down. A follow-up bending auxiliary plate 3 is provided along.

A plurality of grooves 3b, 3b,... Opposing to both side edges 3a, 3a of the bending auxiliary plate 3 are formed in the bending auxiliary plate 3, and a stopper thread is provided for each pair of grooves 3b, 3b. 4 is wound so as to support the circuit body 2. Further, both ends in the longitudinal direction (not shown) of the bending assist plate 3 are:
It is attached to a fixing portion of the vehicle (not shown) by a fixing means as appropriate.

[0004]

In the above prior art, the flexible flat cables 1 and 1 and between the circuit body 2 and the auxiliary bending plate 3 are provided so that the bending operation of the circuit body 2 can be performed smoothly. They are not glued or fixed. That is, for example, as shown in FIG.
The two flexible flat cables 1 'are laminated (not fixed) with their ends exactly aligned, and FIG.
As shown in FIG. 1, when bent at the intermediate portion, a deviation of ΔL occurs at both ends of the three flexible flat cables 1 ′ with the bending, and if this deviation is not allowed, the circuit body 2 This is because the bending operation cannot be performed smoothly.

Therefore, at present, a structure is employed in which the circuit body 2 is supported on the auxiliary bending plate 3 by using the stopper thread 4 as shown in FIG. Further, as shown in FIG. 22, the circuit body 2 is placed on the auxiliary bending plate 3, and the pair of grooves 3b,
A support structure for externally fitting the clip 5 every 3b is also employed.

However, according to the above support structure, a separate thread 4 (see FIG. 19) and a clip 5 (see FIG. 22) must be assembled for each pair of the grooves 3b, 3b. There is a problem that the number of work steps for assembling is very long, which affects the entire work.

Further, in the case of using the stopper thread 4 (see FIG. 19), if the thread is not always wound with a constant winding force, a portion where the stopper thread 4 is slackened appears, and the stopper thread 4 comes off from the groove 3b. There is also a problem that it is lost. Another example is that if the winding force is large, the bending of the bending auxiliary plate 3 as shown in FIG. 19 becomes large, which affects the bending operation.

Further, since the circuit body 2 and the auxiliary bending plate 3 are not fixed to each other, there is also a problem that it is difficult to assemble the retaining thread 4 and the like. Further, it is very difficult to manage whether or not the bending operation has been impaired, which complicates the work and the like.

An object of the present invention is to provide a flexible flat cable support structure which can easily and quickly mount a flexible flat cable on a bending auxiliary plate in order to solve the above-mentioned problems. I do.

[0010]

According to the first aspect of the present invention, there is provided a flexible flat cable supporting structure according to the first aspect of the present invention, which is laminated in a single layer or a plurality of layers used in a vehicle such as an automobile. Flexible flat
A supporting structure for a cable, having a flexibility capable of following a bending operation of the flexible flat cable, and capable of tolerating a displacement of the flexible flat cable generated during the bending operation. The flexible flat cable is mounted and supported on a thin bending auxiliary plate having

In the above structure, the flexible flat cable support structure has flexibility capable of following a bending operation of a flexible flat cable used in a vehicle such as an automobile, and has a flexibility generated at the time of the bending operation. -A thin plate-shaped bending auxiliary plate with support means that can tolerate deviation of the flat cable,
The structure is such that a flexible flat cable laminated in a single layer or a plurality of layers is mounted and supported. With the support structure as described above, since the bending auxiliary plate is provided with the support means, it contributes to a reduction in the number of work steps required for assembly. That is, instead of supporting the flexible flat cable one by one with a supporting member that is a separate member with respect to the bending auxiliary plate, the flexible flat cable is mounted and supported by the bending auxiliary plate provided with the support means. Therefore, complexity is reduced and workability is improved.
Also, since the number of parts can be reduced, the cost of the reduced parts is reflected in the assembly manufacturing cost,
This can contribute as a product that suppresses the increase in vehicle prices.

According to a second aspect of the present invention, there is provided a flexible flat cable supporting structure according to the first aspect, wherein the supporting means has an insertion portion, and the supporting means has an insertion portion. Are disposed on both side edges along the longitudinal direction of the flexible flat cable.

In the above configuration, the support means has an insertion portion, and the support means is arranged on both side edges along the longitudinal direction of the flexible flat cable. Therefore, the flexible flat cable can be inserted and supported by the support means provided on both side edges of the bending auxiliary plate, so that the flexible flat cable can be quickly mounted.

According to a third aspect of the present invention, there is provided a flexible flat cable supporting structure according to the second aspect, wherein the supporting means has an L-shaped cross section. It is characterized by being any one of a projection, a ridge having an L-shaped cross section, a combination of the projection having an L-shaped cross section, and the ridge.

In the above configuration, the support means is any one of a protrusion, a ridge, and a combination of the protrusion and the ridge. Since the support means has the insertion portion as described above, these are L.
It is formed in a U-shaped cross section. Therefore, the flexible flat cable may be inserted into and supported by any one of the protrusions, the ridges, and the combination of the protrusions and the ridges provided on both side edges of the bending assist plate. Therefore, the flexible flat cable can be easily and quickly mounted.

According to a fourth aspect of the present invention, there is provided a flexible flat cable supporting structure according to the third aspect, wherein the projection and the ridge are provided on the substrate of the bending auxiliary plate. It is characterized in that it is formed by cutting and raising it.

In the above configuration, the projections and the ridges are formed by cutting and raising the substrate of the bending auxiliary plate. Therefore, not only the number of parts is small, but also it can be easily formed by bending,
Cables can be installed easily and quickly.

According to a fifth aspect of the present invention, there is provided a flexible flat cable supporting structure according to the first aspect of the present invention, wherein the supporting means comprises a longitudinal section of the flexible flat cable. A projection that is provided to correspond to an intermediate portion in the width direction orthogonal to the direction and has a locking portion, and a through hole that allows the projection in the deviation direction in the intermediate portion of the flexible flat cable. It is characterized in that the protrusion is formed to engage the through hole.

In the above configuration, the support means is a projection having a locking portion, and is disposed so as to correspond to an intermediate portion in the width direction orthogonal to the longitudinal direction of the flexible flat cable. The projection is adapted to engage with a through hole in the middle portion of the flexible flat cable, and the through hole is formed so as to allow the projection in the displacement direction of the flexible flat cable. I have. Therefore, it is only necessary to engage the protrusion of the auxiliary bending plate with the through hole of the flexible flat cable, so that the flexible flat cable can be easily and quickly mounted.

According to a sixth aspect of the present invention, there is provided a flexible flat cable supporting structure according to any one of the first to fifth aspects, wherein the bending auxiliary plate is connected to the vehicle body and the vehicle. The flexible flat cable is mounted on the flexible flat cable as a power supply circuit of a power supply device capable of supplying power from the vehicle body to the slide door through a slide door slidably attached to the vehicle body. -It is characterized by supporting cables.

In the above configuration, the bending assist plate is interposed between the vehicle body and the slide door slidably mounted on the vehicle body to supply power from the vehicle body to the slide door. It is attached to a flat cable and supports the flexible flat cable. Therefore, the workability of the power supply device can be improved, and the number of components can be reduced as described above.

[0022]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 shows a flexible type of the present invention.
FIG. 2 is a perspective view showing an embodiment of a power supply device for a sliding door using a flat cable support structure, and FIG.
1 shows a cross-sectional view of the power supply device of FIG. FIG. 3 is a perspective view for explaining a supporting structure of a circuit body and a bending auxiliary plate arranged in the slider rail of FIG. 1, and FIG. 4 is a view of the flexible flat cable and the bending auxiliary plate of FIG. FIGS. 5 to 7 are perspective views for explaining mounting, and FIGS. 5 to 7 are explanatory views for explaining operations of the power supply device, the circuit body, and the bending assist plate when the sliding door is opened.

In FIG. 1, reference numeral 11 denotes a vehicle body of a high roof type automobile, and reference numeral 12 denotes a slide door of the high roof type automobile. Reference numeral 13 denotes a power supply device for an automobile slide door interposed between the vehicle body 11 and the slide door 12. The vehicle body 11 has a doorway 15 formed substantially at the center of the vehicle body side wall portion 14, and a step 16 is formed below the doorway 15. Step 1
A hinge roller portion 17 fixed to the slide door 12 so as to be integral therewith is provided below the slide door 12.

The power supply device 13 has a rail-shaped slider rail 18 provided on the slide door 12, a slider 19 movably held by the slider rail 18, and one end 20a rotatably fixed to the vehicle body 11. Along with
The other end 20b is rotatably attached to the slider 19,
An articulated arm 20 that expands and contracts in conjunction with the movement of the slide door 12, and is arranged via the articulated arm 20 (see FIG. 2). 2) is the harness 23 on the sliding door side.
(See FIG. 2) and a circuit body 21 (see FIG. 2).

The slider rail 18 is integrally or separately fixed to the panel 24 of the slide door 12. As shown in FIG. 2, a hollow portion 25 for the circuit body 21 and a rail portion 26 for the slider 19 are internally provided as shown in FIG. Is formed. The other end 2 of the circuit body 21 is provided at one end 25a of the cavity 25.
Terminal block 27 having outlet 27a for 1b side
The other end 25b is provided with a terminal block 28 which also serves to prevent the circuit body 21 from protruding. A seat 29 is formed in the terminal block 27.

The slider 19 is provided with three rollers 30 rolling on the rail 26 on both sides of the main body 19a. A seat 3 is provided on the upper part of the main body 19a.
1 is provided.

The articulating arm 20 includes end-side arms 32, 3
3 and the intermediate arms 34, 34, 34 are connected by a plurality of rotating shafts 35 (see FIG. 1), and the end side arms 32
Is attached to the slider 19, and the end side arm 33 is rotatably fixed to the vehicle body 11.

As shown in FIG. 2, the circuit body 21 is connected to the vehicle body 11 through the articulation arm 20 and the slider rail 18.
A harness 38 arranged between the sliding door 12 and converging a plurality of electric wires 36 connected to the vehicle body-side harness 22 by a tape winding 37, and two harnesses having a plurality of circuits bent and accommodated in the slider rail 18 And a flat flexible flat cable 39, 39
A plurality of electric wires 36 which are led out from the outlet 27a of the terminal block 27 and are connected to the slide door side harness 23 are converged by a tape winding 37. The harness 40 comprises both ends of flexible flat cables 39, 39 and a harness 38. And the harness 40 are connected to the seat 3 of the slider 19.
1 and a connector 42 provided on the terminal block 27 of the slider rail 18. Although not shown, the connectors 41 and 42 are not shown.
Alternatively, a structure may be adopted in which connection is directly made by soldering, ultrasonic welding, heat welding, or the like, without using the above.

The flexible flat cable 39,
39, the seat 29 of the slider rail 18 and the slider 1
The thin bending assist plate 43 made of a synthetic resin (or may be made of a convex steel; the same applies to a bending assist plate described below) in which both ends are screwed and fixed to the seat portion 31 of No. 9 so as to be in contact with the seat portion 31. It is installed.

The bending auxiliary plate 43 has flexibility and moves with the flexible flat cables 39, 39 while changing the bending position with the movement of the slider 19, as shown in FIG. As described above, a plurality of (the number and the interval can be appropriately set according to the use state) projections 44 on both sides 43a, 43a side along the longitudinal direction of the flexible flat cables 39, 39 (claim) (Corresponding to the support means described in the range) are provided facing each other (in order to simplify the structure of the molding die, there may be a not-shown die hole at the root of the projection 44).

The protrusion 44 is a narrow plate-like piece having an insertion portion 45 (see FIG. 4) and having an L-shaped cross section, and is formed integrally with the substrate 46 of the bending auxiliary plate 43. ,
At the tip of the projection 44, a tapered portion 44a is formed in consideration of the mountability of the flexible flat cables 39, 39.

The flexible flat cable 39,
When the support 39 is to be mounted on the bending auxiliary plate 43 to be supported, mounting in the directions of arrow P and arrow Q can be considered as shown in FIG. First, in the case of the arrow P direction, one of the flexible flat cables 39, 39 and the bending auxiliary plate 43 is bent in the width direction and then mounted in the insertion portion 45, and the arrow Q direction. In the case of
Either the flexible flat cable 39, 39 or the bending auxiliary plate 43 is slid to be mounted in the insertion portion 45. (Either mounting or supporting can be performed easily and quickly. Of course, this contributes to improvement in workability).

The flexible flat cable 3
Since both ends (not shown) of the terminals 9 and 39 are connected to the connectors 41 and 42 as described above, deviations occurring at the ends when the terminal is bent (for example, Δ shown in FIG. 21).
L shift) is a flexible flat cable 3
This will be caused by bending at the intermediate portion between 9 and 39. However, since the projections 44 are provided with an interval in the longitudinal direction, the interval absorbs the bending, and there is no particular problem.

As described above, the flexible flat cables 39, 39 are provided in the slider rail 18 with the auxiliary bending plates 43 for the flexible flat cables 39, 39 so that the flexible flat cables 39, 39 do not undulate or hang down. be able to. Therefore, the flexible flat cables 39, 39 can be protected from repeated movement of the slider 19, and the durability thereof can be improved.

In the above configuration, the power supply device 13 operates as shown in FIGS. 5 to 7 with the opening operation of the slide door 12 (the closing operation is the reverse of the opening operation and is omitted). . In order to explain the operation of the flexible flat cables 39, 39 and the bending auxiliary plate 43, these are replaced with a cable 47 with a bending auxiliary plate.

When the door is closed as shown in FIG. 5, the articulating arm 20 of the power feeding device 13
The slider 19 connected to the articulated arm 20 is located behind the slider rail 18 on the rear side of the vehicle body 11. The bent portion 47 a of the cable 47 with a bending auxiliary plate that is bent and accommodated in the slider rail 18 is located at a substantially intermediate portion of the slider rail 18.

When the slide door 12 is opened and the door is half-opened as shown in FIG. 6, the slider 19 is guided via the slider rail 18 in conjunction with the movement of the slide door 12 (moves forward in the vehicle body 11). ), Articulation arm 2
0 is extended by approximately the amount of slide door 12 drawn out.
The bent portion 47a of the cable 47 with a bending auxiliary plate is
The bending position moves forward of the vehicle body 11.

When the slide door 12 is further moved to the rear of the vehicle body to be fully opened as shown in FIG. 7, the articulation arm 20 moves a little obliquely rearward in conjunction with the movement of the slider 19 in the forward direction. The bending position of the bending portion 47a of the cable 47 with the bending auxiliary plate moves further forward in the vehicle body 11.

Referring to FIG. 8, another example of the support means for the bending assist plate will be described. In FIG. 8, the bending assist plate 48
A pair of ridges 49, 49 (having an L-shaped cross-sectional shape capable of forming an insertion portion similar to the insertion portion 45 along the longitudinal direction on the side edges 48a, 48a thereof. (Corresponding to the support means described in the range). The lengths of the ridges 49, 49 in the longitudinal direction are appropriately set in accordance with the bending positions of the flexible flat cables 39, 39. 39, 39
Absorbing portions 48b, 48b (indicating a space) for the above-mentioned bending are also provided. Such a bending auxiliary plate 48 can also achieve the same effect as the above-described bending auxiliary plate 43.

Further, a support structure as shown in FIGS. 9 to 11 may be used. That is, a plurality of protrusions 51 are formed at predetermined intervals on one side edge 50a side along the longitudinal direction on the slightly curved bending auxiliary plate 50 made of convex steel (or made of synthetic resin). A plurality of (only one is shown) ridges 52 are formed on the other side edge 50b side facing the 50a. The protrusions 51 and the protrusions 52 are formed with tapered portions 51a and 52a, and have an L-shaped cross section (see FIG. 11).

Further, a support structure as shown in FIGS. 12 to 14 may be used. That is, as shown in FIG. 12, a plurality of flexible flat cables 53 (the number and the interval of which are in use in the middle part in the width direction orthogonal to the longitudinal direction of the flexible flat cables 53 in the longitudinal direction). The through-hole 54 is formed in accordance with the above-mentioned method. The through-hole 54 is formed in the plurality of through-holes 54, and an intermediate portion (in the present embodiment, a slightly curved bending auxiliary plate 55 made of convex steel (or made of synthetic resin) At the center)
A support structure in which a plurality of arrow-shaped protrusions 56 having a are fitted may be used, and in this case, the through holes 54 allow the above-described displacement, and the same effect as described above is exerted.

Further, instead of the projection 56, a bending assisting plate 58 having a plurality of projections 57 having a bulged tip and formed in a keyhole shape as shown in FIG. 13 may be used. still,
As shown in FIG. 14, the protrusion 57 is provided on the front and back surfaces of the substrate 59 of the bending auxiliary plate 58 by appropriate means (ultrasonic welding, caulking, etc.).
It is fixed at. Although the projection 57 is a separate member, if it is attached to the substrate 59 in advance, it does not affect workability.

Next, another example of the supporting means of the bending assist plate will be described with reference to FIG. In FIG.
The bending assist plate 60 is made of metal (it is flexible and may be the above-mentioned flat convex steel) and is formed in a thin plate shape.
39 on both side edge portions 60a, 60a side along the longitudinal direction.
A plurality of (the number and the interval can be appropriately set according to the use state) projections 61 are provided to face each other.

The protrusions 61 are formed by providing slits 62a, 62a from the side edge portions 60a to the inside of the substrate 62 to cut and raise them. -It is slightly wider than the width of the flat cables 39, 39 (indicating the width in the direction perpendicular to the longitudinal direction).

Then, as shown in FIG. 16, the flexible flat cables 39, 39 laminated between the projections 61, 61 of the bending auxiliary plate 60 are attached, and
By bending the distal end portions of the first and the first portions 61 inward by press working or the like, the projections 63 and 63 (corresponding to the support means described in the claims) having an L-shaped cross section are formed, and are flexible・ Flat cable 3
9 and 39 are supported.

The flexible flat cables 39, 3
9, the same insertion portion 63a as described above is formed. Further, the distal end portion is folded back so as to cause a slight backlash (indicated by the dimension ΔD) with respect to the flexible flat cables 39, 39.

The projections 63, 63 are formed on both side edges 60a,
The protrusions 49 and 5 are not only formed opposite to each other on the 60a side, but can also be arranged in a staggered manner.
It is also possible to adopt a form as shown in FIG. Further, since the protrusions 63, 63 are formed more inward than the side edges 60a, 60a, the flexible flat cables 39, 39 are separated from the side edges 60a, 60a. The flexible flat cables 39, 39 can be easily protected from repeated movements of the slider 19, and the durability thereof can be improved.

Next, another example of the bending auxiliary plate 60 will be described with reference to FIG. In FIG. 17, the auxiliary bending plate 64 is made of metal as described above (it is flexible and may be the flat convex steel), and the width of the flexible flat cables 39, 39 (perpendicular to the longitudinal direction). The width of the flexible flat cable 39 is substantially the same as that of the flexible flat cable 39.
On the a and 64a sides, a plurality of (the number and the interval can be appropriately set according to the use state) protrusions 65 are formed in a staggered manner.

The projections 65 are formed on the substrate 6 of the bending assist plate 64 in advance.
As shown in FIG. 17, a strip piece integrally formed into a strip protruding outward on the same plane is cut and raised as shown in FIG. A short notch 6 from the edge 64a toward the inside of the substrate 66
7, 67 are formed.

Then, as shown in FIG. 18, a flexible flat layer laminated inside the protrusions 65, 65 is provided.
By attaching the cables 39, 39, and bending the distal end portions of the protrusions 65, 65 toward the inward side by press working or the like, the protrusions 68, 68 having an L-shaped cross section are provided.
(Corresponding to the support means described in the claims) is formed to support the flexible flat cables 39, 39.

The projection 68 also has an insertion portion (not shown) for the flexible flat cables 39, 39 and a slight play similar to the projection 63. Protrusion 6
8 and 68 can be arranged to face each other, and the width (indicating the width of the protrusion 67 in the longitudinal direction) can be widened to form the ridges 49 and 52. It is.

As described above, even when the projections 63 and 68 described with reference to FIGS. 16 and 18 are provided as support means, the flexible flat cables 39 and 39 are protected from repeated movement of the slider 19 and the like. And its durability can be improved. In addition, the number of parts can be reduced, and the projections 63 and 68 can be easily formed.

Further, the flexible flat cables 39 can be easily and quickly mounted.

The examples of the various support structures have been described above.
All of these can be applied not only to the support structure applied to the power supply device 13 but also to a support structure of a flexible flat cable for a vehicle arranged on an instrument panel, a pillar, or the like. It goes without saying that the shapes of the projections 44 and the like can be variously changed without departing from the gist of the present invention.

[0055]

As described above, according to the first aspect of the present invention, the supporting structure of the flexible flat cable can be used for bending the flexible flat cable used in a vehicle such as an automobile. It is laminated in a single layer or a plurality of layers on a thin plate-like bending auxiliary plate having supporting means capable of following the flexible flat cable and having a flexible flat cable which is capable of tolerating a shift during the bending operation. It has a structure to attach and support a flexible flat cable. With the support structure as described above, since the bending auxiliary plate is provided with the support means, it contributes to a reduction in the number of work steps required for assembly. That is, instead of supporting the flexible flat cable one by one with a supporting member that is a separate member with respect to the bending auxiliary plate, the flexible flat cable is mounted and supported by the bending auxiliary plate provided with the support means. This has the effect of eliminating complexity and improving workability. Further, since the number of parts can be reduced, the cost of the reduced parts can be reflected in the manufacturing cost of the assembly, thereby contributing to one product that suppresses the increase in the price of the vehicle.

According to the second aspect of the present invention, the support means has the insertion portion, and the support means is arranged on both side edges along the longitudinal direction of the flexible flat cable. ing. Therefore, the flexible flat plate is provided on the support means provided on both side edges of the bending auxiliary plate.
You just have to insert and support the cable,
This has the effect that the flexible flat cable can be quickly mounted.

According to the third aspect of the present invention, the supporting means is any one of a projection, a ridge, a combination of the projection and the ridge, and has the insertion portion as described above. These are formed in an L-shaped cross section.
Therefore, the flexible flat cable may be inserted into and supported by any one of the protrusions, the ridges, and the combination of the protrusions and the ridges provided on both side edges of the bending assist plate. Therefore, there is an effect that the flexible flat cable can be easily and quickly attached.

According to the fourth aspect of the present invention, the projections and the ridges are formed by cutting and raising the substrate of the bending auxiliary plate. Therefore, not only the number of parts is small, but also it can be easily formed by bending, so that there is an effect that the flexible flat cable can be easily and quickly mounted.

According to the fifth aspect of the present invention, the support means is a projection having a locking portion, and is disposed so as to correspond to an intermediate portion in the width direction orthogonal to the longitudinal direction of the flexible flat cable. Have been. And the protrusion is
The flexible flat cable is adapted to engage with a through-hole at an intermediate portion thereof, and the through-hole is formed so as to allow a protrusion in a direction in which the flexible flat cable is displaced. Therefore, it is sufficient to engage the protrusion of the auxiliary bending plate with the through hole of the flexible flat cable, so that the flexible flat cable can be easily and quickly mounted.

According to the sixth aspect of the present invention, the power supply which can supply power from the vehicle body to the slide door by interposing the bending assist plate between the vehicle body and the slide door slidably mounted on the vehicle body. It is mounted on a flexible flat cable as a power supply circuit of the device and supports the flexible flat cable. Therefore, it is possible to improve the workability of the power supply device and to reduce the number of components as described above.

[Brief description of the drawings]

FIG. 1 is a perspective view showing one embodiment of a power supply device for a slide door using a flexible flat cable support structure of the present invention.

FIG. 2 is a cross-sectional view of the power supply device of FIG.

FIG. 3 is a perspective view for explaining a supporting structure of a circuit body and a bending auxiliary plate arranged in the slider rail of FIG. 1;

FIG. 4 is a perspective view for explaining mounting of the flexible flat cable and the bending auxiliary plate of FIG. 3;

FIG. 5 is an explanatory diagram for explaining an arrangement of a power supply device and a cable with a bending assist plate when the sliding door is closed.

FIG. 6 is an explanatory diagram for explaining the operation of the power supply device and the cable with a bending assist plate when the sliding door is half-opened with respect to FIG. 5;

FIG. 7 is an explanatory diagram for explaining the operation of the power supply device and the cable with a bending auxiliary plate when the slide door is fully opened with respect to FIG. 6;

FIG. 8 is a perspective view illustrating another example of the support means for the bending assist plate of FIG. 4;

FIG. 9 is a perspective view of a flexible flat cable and a bending auxiliary plate for explaining still another example of the supporting means of the bending auxiliary plate of FIG. 4;

FIG. 10 is a perspective view showing a state in which the flexible flat cable and the bending assist plate of FIG. 9 are mounted and supported.

FIG. 11 is a sectional view taken along line AA of FIG. 10;

FIG. 12 is a perspective view of a flexible flat cable and a bending auxiliary plate for explaining another example of the supporting means of the bending auxiliary plate of FIG. 4;

FIG. 13 is a perspective view for explaining another example of the bending assist plate of FIG. 12;

FIG. 14 is a cross-sectional view of the protrusion of FIG.

FIG. 15 is a perspective view of a flexible flat cable and a bending auxiliary plate for explaining still another example of the supporting means of the bending auxiliary plate of FIG.

FIG. 16 is a perspective view of a state in which the flexible flat cable and the bending auxiliary plate of FIG. 15 are mounted and supported (circles are enlarged views of main parts).

FIG. 17 is a perspective view for explaining another example of the bending auxiliary plate of FIG. 15;

FIG. 18 is a perspective view showing a state where the flexible flat cable and the bending auxiliary plate of FIG. 17 are mounted and supported.

FIG. 19 is a perspective view showing a supporting structure of a conventional flexible flat cable.

FIG. 20 is a front view of a laminated flexible flat cable for explaining displacement of the flexible flat cable.

FIG. 21 is a front view of a bent state of a laminated flexible flat cable for explaining a displacement of the flexible flat cable.

FIG. 22 is a perspective view showing another support structure of a conventional flexible flat cable.

[Explanation of symbols]

13 Power supply device 39 Flexible
Flat cable 43, 48, 50, 58, 60, 64 Auxiliary bending plate 44, 51, 56, 57, 63, 68 Projection (support means) 45 Insertion part 49, 52 Projection (support means) 54 Through hole

Claims (6)

[Claims] 1. A flexible flat cable support structure laminated in a single layer or a plurality of layers used in a vehicle such as an automobile, and has a flexibility capable of following a bending operation of the flexible flat cable. Attaching and supporting the flexible flat cable on a thin plate-shaped bending auxiliary plate provided with a support means capable of allowing a displacement of the flexible flat cable generated during the bending operation. Flexible flat cable support structure. 2. The flexible flat cable support structure according to claim 1, wherein the support means has an insertion portion, and the support means is disposed on both side edges along the longitudinal direction of the flexible flat cable. Flexible flat
Cable support structure. 3. The flexible flat cable support structure according to claim 2, wherein said support means is a projection having an L-shaped cross section, a ridge having an L-shaped cross section, or an L-shape. A support structure for a flexible flat cable, wherein the support structure is one of a combination of the protrusion and the ridge having a cross-sectional shape of: 4. The flexible flat cable support structure according to claim 3, wherein the protrusions and the ridges are cut and raised from a substrate of the bending auxiliary plate. Support structure. 5. The flexible flat cable support structure according to claim 1, wherein the support means is disposed so as to correspond to an intermediate portion in a width direction orthogonal to a longitudinal direction of the flexible flat cable. A protrusion having a locking portion, wherein a through hole is formed in the intermediate portion of the flexible flat cable to allow the protrusion in the shift direction, and the protrusion is engaged with the through hole. Flexible flat cable support structure. 6. The flexible flat cable support structure according to claim 1, wherein the bending auxiliary plate is interposed between the vehicle body 11 and a slide door slidably mounted on the vehicle body. A flexible flat cable attached to the flexible flat cable as a power supply circuit of a power supply device capable of supplying power from the vehicle body to the slide door, and supporting the flexible flat cable. Support structure.