JP2004248431A - Feeding structure for slide door - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To obtain a feeding structure for a slide door improved in workability and high in reliability constituted by connecting terminals between the slide door side and a body side with a seamless flat cable. <P>SOLUTION: The flat cable led in a case 1 via a fixing member 5 is formed of two pieces of overlapped long flat cables 4a, 4b and connected to a connector 8 of the door side that is engaged with the connector arranged at the slide door 2 side. The flat cables 4a, 4b are direction-changed by bend in the fixing member 5 and led into the case 1, inflected into U-shapes symmetrically with respect to the reverse direction in the case 1 and formed into loop-shapes, overlapped again at a sliding member 6 on a lower face 1d, led out to the outside from the sliding member 6 as overlapped by the direction change by the bend, and connected to a vehicle body side connector 10 arranged at the plower part of a vehicle body as a connecting part through a bellows-shaped protection pipe 9 having elasticity. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a power supply structure of a slide door for connecting between a terminal on a slide door side of a vehicle and a terminal on a vehicle body side by a flexible flat cable (hereinafter, referred to as a flat cable) in which a plurality of metal foil conductors are covered with an insulating sheet. It is about.
[0002]
[Prior art]
In order to supply power to a glass window opening / closing motor or the like in a slide door, for example, in a power supply device for a slide door disclosed in Japanese Patent Application Laid-Open Nos. Although a flat cable is used by utilizing the flexibility and elasticity, a wire such as a stranded wire is used for a transition portion to another connector or the like.
[0003]
[Problems to be solved by the invention]
However, in these conventional examples, the flat cable is connected to the electric wire on the way, and the connection operation is required. Further, since the flat cable has a movable portion, the connection has mechanical strength. In addition, since the direction of the electric wire must be changed in the movable part and the like, and the electric wire is twisted every time the door is opened and closed, unless the wiring structure is devised and a special durable electric wire is used, There is also a problem that the wire is easily broken.
[0004]
SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned problems and to provide a highly reliable slide door power supply structure in which terminals between the slide door side and the main body side are connected by a seamless flat cable, thereby improving workability and reliability. It is in.
[0005]
[Means for Solving the Problems]
In order to achieve the above object, a power supply structure for a slide door according to the present invention is provided in a wiring structure for wiring between the slide door side and the main body side, wherein a plurality of metal wires are provided between the slide door side terminal and the main body side terminal. Wiring is performed by one or more flexible flat cables having foil conductors, and an intermediate portion of the flat cable is accommodated in extra length absorbing means for absorbing extra length generated when the slide door is opened and closed, and the extra length is absorbed. The direction change of the flat cable at the entrance and exit of the means is performed by bending.
[0006]
BEST MODE FOR CARRYING OUT THE INVENTION
The present invention will be described in detail based on the illustrated embodiment.
1 is a schematic perspective view, FIG. 2 is a perspective view with a part of a case removed, and FIG. 3 is a bottom view. 1 is made of metal or synthetic resin, and has a built-in mechanism for absorbing the extra length of a flat cable. The case is fixed along the opening and closing direction of the lower side of the slide door 2.
[0007]
The case 1 has an elongated shape having a rectangular cross section, and two members 1a and 1b having a U-shaped cross section are assembled in a housing shape with bolts 3 at three locations along the longitudinal direction. A box-shaped fixing member 5 for introducing the flat cable 4 into the case 1 is fixed to the upper surface 1c of the case 1, and a box-shaped sliding member 6 is formed on the lower surface 1d of the case 1 in the longitudinal direction. It is attached so that it can slide along the slit 7 formed.
[0008]
The flat cable introduced into the case 1 via the fixing member 5 is, for example, two long flat cables 4a and 4b superposed outside the case 1 and connected to a connector (not shown) provided on the slide door 2 side. It is connected to the door-side connector 8 to be fitted.
[0009]
These flat cables 4a and 4b are bent in the fixing member 5 and changed in direction to be introduced into the case 1. The flat cables 4a and 4b are symmetrical in the opposite direction in the case 1 as shown in FIG. Each is bent in a U-shape to form a loop shape.
[0010]
These flat cables 4a and 4b are again overlapped on the sliding member 6 on the lower surface 1d via the loop portion, and are led out of the sliding member 6 as they are overlapped by bending so that the direction is changed by bending. Through a flexible protective tube 9, it is connected to a vehicle-body-side connector 10 disposed at a lower part of the vehicle body as a crossover part. In addition, in the protective tube 9, a metal spring plate material can be provided along the flat cables 4a and 4b as necessary.
[0011]
The flat cables 4a and 4b are bent in the fixing member 5 and the sliding member 6, and pins (not shown) provided in the fixing member 5 and the sliding member 6 are inserted through insulating sheets of the flat cables 4a and 4b. Thereby, the flat cables 4a and 4b are fixed to the fixing member 5 and the sliding member 6 in a bent state. This bending is not limited to bending in a strict sense, but also includes changing the direction with a small radius of curvature without completely bending.
[0012]
In the case 1, the flat cables 4 a and 4 b are unfolded in a left and right loop shape, but spaces are provided on both sides thereof so that the sliding members 6 can follow the left and right sliding in the case 1. Allowance is provided. For the U-shaped bends of the flat cables 4a and 4b in the case 1, a large radius of curvature is selected so as not to exceed the elastic limit. Further, a metal spring plate (not shown) is provided along the outside of the flat cables 4a and 4b in the case 1 to protect the flat cables 4a and 4b and to apply elastic force to the flat cables 4a and 4b.
[0013]
The metal spring plate material in the case 1 plays a role of preventing the flat cables 4a, 4b from sliding on the inner surface of the case 1 and causing damage or poor insulation. However, the flat cables 4a, 4b are movable. This metal spring plate can be omitted if there is no risk of damage or the like and if it has a sufficient elastic force.
[0014]
As shown in FIG. 4, the sliding member 6 is provided with a width detail 6 a in the upper and lower middle part, and the width detail 6 a can be fitted and slid in the slit 7 along the lower surface 1 d of the case 1. It has been like that. In the upper sliding portion 6b located inside the case 1, as shown in FIG. 5, the flat cables 4a and 4b are moved from the state of the loop shape A in which the surfaces are turned up and down to the front and rear parallel to the sliding direction. In the state of B bent in the direction, it falls in the narrow width portion 6a to reach the lower sliding portion 6c, and in the lower sliding portion 6c, the surface is turned in the left and right direction orthogonal to the sliding direction, The whole is drawn out from the outlet 6d of the sliding member 6 in a state of C bent in the horizontal direction.
[0015]
When the sliding door 2 opens and closes, the case 1 also moves together as shown by the arrow in FIG. 2, but the position of the vehicle body side connector 10 does not move, and the sliding member 6 of the case 1 2 will slide relatively along the slit 7 from the solid line to the dotted line in FIG. At this time, while maintaining the loop shape, the flat cables 4a and 4b in the case 1 can move inside the case 1 as shown by the dotted lines to adjust the extra length with respect to the vehicle body side connector 10. In FIG. 2, for convenience of illustration, the case 1 is illustrated as being stationary and the vehicle body side connector 10 is moving, but these are relative, and the case 1 is actually moving. I have.
[0016]
In this case, if the length of the flat cables 4a and 4b of the transition section protected by the protection tube 9 is made slightly longer so that the flat cables 4a and 4b can be elastically bent, the distance between the sliding member 6 and the vehicle body side connector 10 can be increased. The flat cables 4a and 4b in this portion can be provided with a sufficient space, and do not give an excessive tension. In addition, by arranging the metal spring along the flat cables 4a and 4b in the protection tube 9, the flat cables 4a and 4b are excessively moved even when the sliding member 6 moves at the outlet 6d from the sliding member 6 to the outside. There is no bending, and the durability is improved.
[0017]
As described above, in the embodiment, the twist of the direction change accompanying the movement when the electric wire is used is replaced by the bending of the flat cables 7a and 7b, and the movement is performed in the case 1 using the characteristics of the flat cable and Since the bending is performed in the protection tube 9, the life can be extended. It has already been demonstrated in various electric devices that the flat cable has sufficient durability as long as the repeated bending of the flat cable does not fall below a predetermined radius of curvature.
[0018]
In the embodiment, two flat cables are used. By using a plurality of flat cables, the flat cables in the case 1 can be routed in a loop shape. However, even if a single flat cable is used, the extra length can be absorbed by curving only one side in the case 1 in a U-shape.
[0019]
Further, in the embodiment, the flat cables 4a and 4b which are continuous between the door connector 8 and the vehicle body connector 10 are used. However, the door connector 8 in FIGS. And the flat cables 4a and 4b can be extended to a door-side connector (not shown).
[0020]
Further, the flat cables 4a and 4b are not merely strip-shaped, but may be designed for this purpose, for example, may have a two-dimensionally manufactured shape as shown in FIG. The bending can be further simplified because the direction of the flat cable 4 is changed in advance at that portion.
[0021]
Further, an inclined portion 1e as shown in FIG. 7, for example, is provided on the lower surface of the case 1 according to the shape of the sliding door, the body, or the movement of the sliding door, and the sliding member 6 is slid along the inclined portion 1e. It can also be moved.
[0022]
In the embodiment, the case where the present invention is applied to an automobile has been described. However, the present invention is not limited to a vehicle and can be used for a sliding door of a building or the like.
[0023]
【The invention's effect】
As described above, the power supply structure of the sliding door according to the present invention absorbs the extra length generated when the sliding door is opened and closed between the door side terminal and the main body side terminal without connecting a single flat cable. In addition, the direction can be freely changed by bending, the number of parts is reduced, the structure is simplified, and reliability can be secured.
[Brief description of the drawings]
FIG. 1 is a perspective view of an embodiment.
FIG. 2 is a perspective view showing a state where a part of a case is removed.
FIG. 3 is a rear view of the case.
FIG. 4 is a perspective view of a sliding member.
FIG. 5 is an explanatory diagram of a bent state of a flat cable in a sliding member.
FIG. 6 is a plan view of a flat cable according to another embodiment.
FIG. 7 is a front view of a case according to another embodiment.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Case 2 Sliding door 4a, 4b Flat cable 5 Fixing member 6 Sliding member 7 Slit 8 Door side connector 9 Protection tube 10 Body side connector

Claims (11)

In a wiring structure for wiring between the slide door side and the main body side, wiring between the slide door side terminal and the main body side terminal is performed by one or more flexible flat cables each having a plurality of metal foil conductors, The intermediate portion of the flat cable is housed in excess length absorbing means for absorbing excess length generated by opening and closing the slide door, and the direction change of the flat cable at the entrance and exit of the excess length absorbing means is performed by bending. Power supply structure of the sliding door. The power supply structure for a slide door according to claim 1, wherein the extra length absorbing means is disposed on the slide door side. The power supply structure for a slide door according to claim 1, wherein the surplus length absorbing means absorbs the surplus length by bending the flat cable into a U-shape and adjusting the length of the flat cable. 4. The power supply structure for a slide door according to claim 3, wherein the flat cable includes a plurality of flat cables, and the flat cables are branched in a left and right direction in the extra length absorbing means and arranged in a loop shape. 5. The power supply structure for a slide door according to claim 3, wherein the flat cable in the extra length absorbing means is arranged along a metal spring curved in a U-shape. The power supply structure for a slide door according to claim 3, wherein the flat cable is housed in an elongated case in the extra length absorbing means. The slide according to claim 6, wherein the flat cable is introduced into the case via a fixing member disposed on one side of the case, and the flat cable is drawn out via a sliding member disposed on the other side of the case. Door power supply structure. The power supply structure for a slide door according to claim 7, wherein the sliding member is movable along one surface of the case. 9. The power supply structure for a slide door according to claim 8, wherein a slit is provided on one surface of the case, and the sliding member moves along the slit. The power supply structure for a slide door according to claim 7, wherein the flat cable is bent and fixed inside the fixing member and the sliding member. The power supply structure for a slide door according to claim 9, wherein one surface of the case has an inclined surface along a moving direction of the sliding member.

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