JP2019030168A - Wiring harness laying device - Google Patents

Abstract

To miniaturize a housing part housing an extra length of a wiring harness.SOLUTION: A wiring harness laying device comprises: a wiring harness that is connected to a slider slidably attached to a rail; a guide part that guides the wiring harness to a side direction of the rail and a direction along the rail; and a housing part that is provided in parallel to the side direction of the rail, and houses an inner part of the wiring harness guided by the guide part. The wiring harness is movably housed in the housing part in accordance with the movement of the slider in a state of being folded to a vertical direction.SELECTED DRAWING: Figure 8

Description

  The technology disclosed in this specification relates to a wire harness routing device.

  2. Description of the Related Art Conventionally, a vehicle such as an automobile is provided with a slidable seat, and this seat is equipped with electrical components such as an electric reclining device and a seat heater. The wire harness that connects between these electrical components and the equipment on the vehicle body, etc., follows the sliding of the seat between the seat and the vehicle body, and therefore accommodates the extra length of the wire harness between the seat and the vehicle body. Configuration is provided. In Patent Document 1, a slider that guides a wire harness extending from the seat side to a space under the seat is slidably attached in conjunction with the movement of the seat, and a wire harness that is pulled out from one end side of the moving portion is extraneous. There is disclosed an electric wire routing device having an accommodating portion that accommodates a long portion in a U-shaped folded state. The accommodating part is arranged next to the moving part, and the extra length portion of the wire harness folded back in a U shape is accommodated in the accommodating part in a state of being side by side with respect to the moving part.

JP 2014-3902 A

  By the way, in the structure of patent document 1, although the accommodating part for accommodating the surplus length of a wire harness is required as mentioned above, there existed a problem that the space which can be used in a vehicle decreased by the part of an accommodating part. .

  The technology disclosed in the present specification has been completed based on the above-described circumstances, and an object thereof is to reduce the size of an accommodating portion that accommodates an extra length of a wire harness.

  The technology disclosed in this specification includes a wire harness coupled to a slider slidably attached to a rail, and a guide unit that guides the wire harness in a direction along the rail side and the rail. A housing part that is provided alongside the rail and that accommodates the wire harness guided by the guide part, and the wire harness is folded back and forth in the housing part. The wire harness routing device is housed so as to be movable along with the movement of the slider.

  According to the above configuration, since the wire harness is accommodated along the rail in a vertical state folded in the vertical direction in the accommodating portion, it is curved in the lateral direction (direction aligned with the rail) as in the past. Compared to the folded configuration, the floor installation area required by the accommodating portion is reduced. That is, the usable space in the vehicle becomes wider than before.

  The wire harness routing device may have the following configuration.

  The wire harness has a plurality of electric wires, and the plurality of electric wires are arranged in a row to have a flat shape, and is accommodated in a direction in which flat surfaces are arranged upward and downward in the accommodating portion. It is good also as composition which has.

  According to such a configuration, even when the wire harness has a plurality of electric wires, the wire harness can be easily folded in the vertical direction, and the height of the housing portion can be kept low.

  The wire harness may be configured such that a plurality of electric wires are covered with an exterior body, and the exterior body is allowed to be bent only in one direction.

  The one direction is a direction in which the wire harness is folded back. Therefore, according to such a configuration, it is possible to greatly reduce the bending due to the gravity of the wire harness arranged in the upper stage among the wire harnesses folded in the vertical direction. Is not required, and the housing portion can be configured simply.

  According to the technique disclosed in the present specification, the accommodating portion that accommodates the extra length of the wire harness can be reduced in size.

The perspective view which shows the connection state of the wire harness wiring apparatus of one Embodiment and a sheet | seat A perspective view of the wire harness inserted through the guide member Cross section of wire harness Perspective view of wire harness routing device Side cross-sectional view of wire harness routing device Partially enlarged perspective view of wire harness routing device Front view of wire harness routing device Cross section of wire harness routing device Rear view of wire harness routing device Plan view of wire harness routing device

  One embodiment will be described with reference to FIGS.

  The wire harness routing device 10 according to the present embodiment is arranged under a seat 60 of a vehicle such as an automobile to route the wire harness 11. In the following description, it is assumed that the X direction in FIG. 1 is the right side, the Y direction is the upper side, and the Z direction is the front side.

  As shown in FIG. 1, the seat 60 is slidable in the front-rear direction (Z direction) with respect to a pair of rails 20 fixed on the floor of a passenger compartment (not shown). The seat 60 is provided with various electrical components such as an electric reclining device, a seat heater, a sensor that detects whether a passenger is seated, and a sensor that detects whether a seat belt is worn.

(Wire harness routing device 10)
The wire harness routing device 10 is connected to the rail 20, the slider 30 that moves relative to the rail 20 as the seat 60 slides, and is connected to the seat 60 side and the vehicle body side, and moves as the slider 30 moves. And a surplus length accommodating portion 50 provided adjacent to the rail 20 on the side of the rail 20.

(Wire harness 11)
The wire harness 11 includes a plurality (four in the present embodiment) of electric wires 12 and an exterior body 13 that covers the plurality of electric wires 12. Each electric wire 12 can be a covered electric wire in which a metal conductor made of copper, copper alloy, aluminum, aluminum alloy or the like is covered with an insulating layer.

  The exterior body 13 is made of, for example, a synthetic resin, and is configured by a series of a plurality of rectangular tube portions 14 as shown in FIG. The rectangular tube portion 14 has a flat shape capable of accommodating a plurality of electric wires 12 therein, and is formed so as to be bent only in one direction.

  More specifically, as shown in FIG. 3, the rectangular tube portion 14 has an accommodation space 15 having a substantially rectangular cross section as a whole surrounded by a pair of long walls and a pair of short walls. The length dimension (L1 in FIG. 3) of the short side seen from the cross-sectional direction of the axis of the rectangular tube portion 14 in the accommodation space 15 is set to a length dimension capable of accommodating the plurality of electric wires 12 in a row. . That is, the dimension is set to be smaller than twice the diameter of the electric wire 12 (in this embodiment, substantially the same as the diameter). On the other hand, the length dimension of the long side (L2 in FIG. 3) is set larger with a margin than the sum of the diameters of the plurality of electric wires 12 accommodated inside. Thereby, the plurality of electric wires 12 accommodated in the accommodating space 15 can move with a margin in the arrangement direction (left-right direction, X direction) of the electric wires 12, while the direction orthogonal to the arrangement direction of the electric wires 12. It is arranged so as not to move substantially in the (Y direction), that is, in a line.

  As for the wire harness 11, the one end side distribute | arranged to the sheet | seat 60 side is electrically connected to the various electrical components of the sheet | seat 60, and the other end side (rear side) is apparatus, such as ECU (Electronic Control Unit) on the vehicle side. Connected to.

(Rail 20)
The rails 20 are made of, for example, a metal such as stainless steel or aluminum, and a pair of rails 20 are provided on the floor with respect to each sheet 60. The rail 20 includes a bottom wall 21 extending in the front-rear direction (Z direction), a pair of side walls 22 rising upward (Y direction) from left and right side edges of the bottom wall 21, and an upper wall connecting the upper end edges of the pair of side walls 22. And a through groove 24 extending in the front-rear direction (Z direction) is formed in the upper wall 23. The width of the through groove 24 is set to a dimension that allows insertion of a slide insertion portion 32 described later.

(Slider 30)
The slider 30 is made of, for example, synthetic resin or metal, and is slidable with respect to the rail 20. As shown in FIGS. 7 to 9, the slider 30 includes a slider body 31 inserted into the rail 20, and a slide insertion projecting upward (Y direction) from the upper end of the slider body 31 and passing through the through groove 24. Part 32.

  The slider body 31 has a rectangular parallelepiped shape that is long in the front-rear direction (Z direction, the direction in which the rail 20 extends), and is movable in the front-rear direction so as to slide on the inner wall of the rail 20. The slide insertion portion 32 has a plate shape extending in a direction orthogonal to the upper surface of the slider body 31 and is slidably inserted into the through groove 24 of the rail 20.

  As shown in FIGS. 4 and 5, the slide insertion portion 32 has a substantially U shape in side view in which both end portions in the front-rear direction (Z direction) protrude upward (Y direction), and both the protruding end portions The leg portion 61 of the seat 60 is attached to the seat. Further, a guide member 40 (an example of a guide portion) through which the electric wire 12 of the wire harness 11 is inserted is attached to the recessed portion of the center portion via a connecting member 35.

  The connecting member 35 movably connects a guide member 40 to be described later together with the slider 30, and one end side is fixed to the slide insertion portion 32, while the other end side connects the guide member 40 to the side of the rail 20. It extends long to the side so that it can be placed adjacent to it.

  More specifically, as shown in FIG. 6, the connecting member 35 is configured so that the entire wide portion (the wide portion projecting laterally) of the substantially T-shaped plate member is the narrow portion (other than the wide portion). L-shaped in a side view bent at a right angle with respect to (part)), the wide part is a pair of fixed parts 36 for fixing a guide member 40 described later, and the narrow part has a plate surface thereof. It is set as the isolation | separation part 37 fixed to the slide insertion part 32 while extending to the slide insertion part 32 side in the state which faced the up-down direction (Y direction). The isolation part 37 is spanned between the through groove 24 of the rail 20 and the extra length accommodating part 50 (see FIG. 10), whereby the electric wire 12 falls downward and the through groove 24 of the rail 20. Intruding into the inside is suppressed.

(Guide member 40)
As shown in FIG. 6, the guide member 40 is a flat shape that extends from the seat 60 side (upper side) and guides the plurality of wires 12 of the wire harness 11 guided to the side of the rail 20 downward. A rectangular tube-shaped first through portion 41 and a square tube-shaped second through portion 42 that converts the electric wire 12 guided by the first through portion 41 into a direction along the rail 20 and guides it to the front side are connected. This is a cylindrical member having a substantially L shape in side view. A pair of fixing portions 43 extending in the front-rear direction are integrally provided on the side surface of the first through portion 41, and overlapped with the fixed portion 36 of the connecting member 35 and tightened with bolts. It is fixed by.

  The wire harness 11 extending downward from the seat 60 side is inserted into the first through portion 41 in a form in which a plurality of electric wires 12 (four in the present embodiment) are arranged in the front-rear direction, and a plurality of wires 12 are provided in the second through portion 42. The two electric wires 12 are inserted in the form of being lined up in the left-right direction. That is, not only the extending direction of the wire harness 11 but also the arrangement direction of the plurality of electric wires 12 are converted in the vicinity of the boundary between the first through part 41 and the second through part 42.

  In addition, an escape portion 44 that projects obliquely is provided at the inner corner of the bent portion at the boundary between the first through portion 41 and the second through portion 42. While the plurality of electric wires 12 are released in the escape portion 44, the extending direction changes from the vertical direction (Y direction) to the front-rear direction (Z direction), and the arrangement direction changes from the front-rear direction (Z direction) to the left-right direction (X direction). Has been converted.

(Extra length accommodating part 50)
On the side of the rail 20, an extra length accommodating portion 50 in which an extra length portion of the wire harness 11 led out from the guide member 40 is accommodated is disposed. As shown in FIGS. 4 and 5, the surplus length accommodating portion 50 is an elongated cylindrical shape that can accommodate the wire harness 11 in which the surplus length portion is bent in the vertical direction (Y direction) and folded back into a U shape. I am doing.

  Specifically, as shown in FIG. 8, for example, the surplus length accommodating portion 50 includes a bottom wall 51 extending in the front-rear direction, a pair of side walls 52 rising upward from left and right side edges of the bottom wall 51, and a pair of side walls 52 And an upper wall 53 that connects the upper end edges. The upper wall 53 is formed by providing a through groove 54 extending in the front-rear direction. The through groove 54 is slidable by fitting a portion of the first through portion 41 of the guide member 40 adjacent to the second through portion 42.

  In the surplus length accommodating part 50, the wire harness 11 is distribute | arranged to two steps up and down (refer FIG. 5). The upper stage is an upper stage part 11A that is led out from the guide member 40 and extends forward, and the lower stage is folded back from the upper stage part 11A by a turn-up part 11B and extends rearward, and an ECU whose end is arranged on the vehicle side. It is the lower stage part 11C connected to.

  When the seat 60 slides forward, the folded portion 11B of the wire harness 11 in the surplus length accommodating portion 50 moves forward, and the lower step portion 11C of the wire harness 11 extends forward. Conversely, when the seat 60 slides backward, the folded portion 11B of the wire harness 11 moves rearward, and the upper step portion 11A of the wire harness 11 extends rearward.

  The wire harness routing device 10 of the present embodiment has the above-described configuration, and the operation and effect will be described next.

  The wire harness routing device 10 of this embodiment includes a wire harness 11 connected to a slider 30 slidably attached to the rail 20, a position adjacent to the side of the rail 20, and the wire harness 11; A guide member 40 that guides in the direction along the rail 20 (Z direction), an extra-length accommodating portion 50 that is provided side by side on the rail 20 and accommodates the wire harness 11 guided by the guide member 40 inside, The wire harness 11 is accommodated in the extra length accommodating portion 50 so as to be movable in accordance with the movement of the slider 30 in a vertical state folded back in the vertical direction.

  According to such a configuration, since the wire harness 11 is accommodated along the rail 20 in a vertical state folded in the vertical direction in the extra length accommodating portion 50, the wire harness 11 is transverse (rail) Compared with the configuration in which it is bent in the direction aligned with 20) and folded, the floor installation area required for the extra length accommodating portion 50 is reduced. That is, the usable space in the vehicle becomes wider than before.

  Further, the wire harness 11 has a plurality of electric wires 12, the plurality of electric wires 12 are arranged in a row and have a flat shape, and are flattened upward and downward in the extra length accommodating portion 50. It is housed in the direction in which the surface is arranged.

  According to such a configuration, even when the wire harness 11 has a plurality of electric wires 12, the wire harness 11 can be easily folded up and down, and the height of the extra length accommodating portion 50 can be kept low. .

  In addition, the wire harness 11 is formed by covering the periphery of the plurality of electric wires 12 with an exterior body 13, and the exterior body 13 is allowed to be bent only in one direction.

  This one direction is the direction in which the wire harness 11 is folded back. Therefore, according to such a configuration, it is possible to greatly reduce the bending due to gravity of the wire harness 11A arranged in the upper stage among the wire harnesses 11 folded in the vertical direction. The structure which controls a bending becomes unnecessary and the surplus length accommodating part 50 can be made into a simple structure.

<Other embodiments>
The technology disclosed in this specification is not limited to the embodiment described with reference to the above description and drawings, and for example, the following embodiments are also included in the technical scope.

  (1) In the said embodiment, although it was set as the wire harness 11 which arranged the four electric wires 12 in the row, the number of the electric wires 12 and the form of the wire harness 11 are not restricted to the said embodiment.

  (2) In the above embodiment, the wire harness 11 has a configuration in which the plurality of electric wires 12 are covered with the exterior body 13, and the exterior body 13 is configured to be allowed to be bent only in one direction. Although it was set as the structure which is hard to bend within the surplus length accommodating part 50, you may provide the structure which controls the bending of the wire harness 11 in the surplus length accommodating part 50 side.

10: Wire harness routing device 11: Wire harness 12: Electric wire 13: Exterior body 20: Rail 30: Slider 40: Guide member (guide part)
41: 1st passage part 42: 2nd passage part 50: Surplus length accommodating part (accommodating part)
60: Sheet

Claims (3)

A wire harness connected to a slider slidably attached to the rail;
A guide portion for guiding the wire harness in a direction along the rail and the rail;
An accommodation portion that is provided side by side on the rail and accommodates the wire harness guided by the guide portion;
A wire harness routing device in which the wire harness is housed so as to be movable along with the movement of the slider in a state where the wire harness is folded up and down in the housing portion. The wire harness has a plurality of electric wires, and the plurality of electric wires are arranged in a line to form a flat shape, and the flat surfaces are arranged upward and downward in the housing portion. The wire harness routing device according to claim 1 accommodated. The wire harness routing device according to claim 1, wherein the wire harness is formed by covering a plurality of electric wires with an exterior body, and the exterior body is allowed to be bent only in one direction.

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