JP2015110353A - Wiring device of seat wire harness - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a wiring device of a wire harness which is mounted on a vehicle and wires on a seat which can longitudinally move and rotate.SOLUTION: A wire harness is inserted from an opening on a seat side into a rotation absorbing case fixed to a seat which can longitudinally move and rotate, and is bypassed. Then, the wire harness is penetrated in an arc-shaped slide groove arranged on the rotation absorbing case, and a slider of which both ends are slidably fitted to a harness rail laid on a floor. A slide absorbing case is arranged on a front end of the harness rail. The wire harness is inserted from the front end of the harness rail into the slide absorbing case, and is bypassed in the slide absorbing case, and is led out from an other end opening to a floor side.

Description

  BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wiring harness wiring device for seats, and more particularly to a wiring harness wiring device for supplying power to electrical components mounted on a seat that is mounted in a vehicle such as an automobile and slides in the front-rear direction. It is.

  The seat mounted on the vehicle is slidable in the front-rear direction. In addition, the seat can be rotated in a special vehicle, and when it is moved up and down to facilitate the raising and lowering of the occupant, it is parallel in a large vehicle or a camping vehicle. It may be possible to move from state to face-to-face state. For example, in the vehicle seat turning device provided in Japanese Patent Application Laid-Open No. 2002-114065, as shown in FIGS. 9A and 9B, the slide base 102 is arranged in the front-rear direction on the guide rail 101 fixed to the floor. The rotating plate 103 is rotatably mounted on the slide base 102, and the seat 100 is supported on the rotating plate 103.

  When mounting an electrical component on a vehicle seat that can both slide and rotate, it is necessary to connect and route the wiring harness that feeds the electrical component to the floor harness. Therefore, the wire harness routing device is complicated.

JP 2002-114065 A

  As described above, when a seat mounted on a vehicle such as an automobile is configured to be able to both move and rotate in the front-rear direction, the wire harness connected to the electrical component attached to the seat rotates and rotates the mechanism to follow the back-and-forth movement. Both mechanisms that follow the direction are required. Specifically, a surplus length and a slide surplus length absorbing mechanism capable of following the length of the wire harness in the back-and-forth movement are required, and a surplus length capable of following the rotation direction and a surplus length absorbing function are required. In particular, since it is necessary to make the surplus length absorbing function in the front-rear direction of the wire harness compatible with the surplus length absorbing function in the rotation direction, the wiring harness routing device becomes complicated.

  As described above, since the wiring harness routing device is complicated, conventionally, there are many cases where an electrical component is not provided on a seat that can be moved back and forth and rotated. However, even in this type of seat that can both move back and forth and rotate, it is desired to mount electrical components including an electric reclining mechanism and the like.

  In order to satisfy the above-mentioned demand, the present invention provides a wiring harness wiring device for power feeding, in which an electrical component is mounted on the seat and the electrical component is connected to the seat in a vehicle seat that can both move back and forth and rotate. The challenge is to do.

In order to solve the above-described problems, the present invention fixes a rotation absorbing case to a seat that is movable back and forth and rotates, and inserts a wire harness into the rotation absorbing case from an opening on the seat side to circumvent the problem. After that, the wire harness passes through the arc-shaped slide groove provided in the rotation absorbing case and the slider which is slidably fitted at both ends to the harness rail laid on the floor,
Install a slide absorbing case at the front end of the harness rail, insert a wire harness to be pulled out from the slider from the front end of the harness rail into the slide absorbing case, bypass the inside of the slide absorbing case, and open from the other end opening. Provided is a wiring device for a seat wire harness that is configured to be pulled out to the floor side.

  The slide absorption case is provided with a linear part extending long, a linear slide groove is provided in the linear part, and the lower part of the slider is slidably fitted into the linear slide groove of the slide absorption case. And the said harness rail may be integrated with the case for slide absorption.

  As described above, a rotation absorbing case and a slide absorbing case are provided separately, and are continuously provided with a slider and a harness rail interposed therebetween. A wire harness is provided for rotation absorption from the seat side to the continuous routing device. The case, slider, harness rail, slide absorption case are passed in order and routed to the floor.

When the sheet rotates, the rotation absorbing case fixed to the sheet also rotates together, and the slider attached to the arc-shaped slide groove of the rotation absorbing case does not move, and the rotation absorbing case When the case rotates and the length of the wire harness inserted through the rotation absorbing case changes, the rotation operation is followed.
On the other hand, when the seat moves back and forth, the slider moves back and forth in the harness rail through the rotation absorbing case, and the wire harness that passes through the slider moves the wire harness in the slide absorbing case through the harness rail. Go in and out. That is, when the seat moves backward, the slider moves backward and pulls out the wire harness from the slide absorbing case, while when the seat moves forward, the slider moves forward and pushes the wire harness into the slide absorbing case to make a detour and move the seat back and forth. Make the wire harness follow.
Thus, by providing the rotation absorbing case and the slide absorbing case, the wire harness can smoothly follow the forward and backward movement and rotation of the seat.

The wire harness that passes through the rotation absorbing case, slider, harness rail, and slide absorbing case is a relay harness that relays the seat harness routed in the seat and the floor harness routed on the floor, and both ends thereof are connectors. You may connect.
Alternatively, the branch line branched from the trunk line of the floor harness may be sequentially inserted into the slide absorbing case, the harness rail, the slider, and the rotation absorbing case, and connected to the seat harness that is routed in the seat.
Further, the seat harness may be extended and sequentially inserted through the rotation absorbing case, the slider, the harness rail, and the slide absorbing case to connect the floor harness and the connector.

The rotation absorbing case has a shape in which a bulging portion protruding toward the inner peripheral side is provided on a half side portion in the circumferential direction of the semicircular annular portion, and a wire harness insertion port on the seat harness side at an inner end of the bulging portion And having a shape in which the arc-shaped slide groove is provided on the outer peripheral lower surface of the semi-annular portion,
The wire harness inserted from the wire harness insertion port is routed through the semicircular annular portion after wiring the inside of the bulging portion to the outer peripheral side, and is drawn out to the harness rail through the slider fitted in the arc-shaped slide groove Is preferred.

  The harness rail is composed of a rail in the front-rear linear direction, has a linear slide groove on the upper surface thereof for slidably fitting the slider, and is arranged in parallel with the seat rail laid in the front-rear direction on the floor. The slide absorbing case arranged continuously at the front end of the rail has a substantially J-shape provided with a linear portion continuous to the harness rail and a bulging portion protruding rearward from the front end of the linear portion via an arc portion. The opening of the wire harness is preferably provided at the tip of the bulging portion to draw the wire harness to the floor side.

  The configurations of the rotation absorbing case and the slide absorbing case are not limited to the above configurations, and may be any configuration that can follow the wire harness when the seat is slid back and forth and rotated.

  The seat front / rear slide mechanism and the rotation mechanism are not specified, but the support shafts of the left and right wheels that are rotatably fitted to the seat rail protrude from the lower surface of the support plate, and the seat can be rotatably mounted on the upper surface of the support plate. preferable. Alternatively, a part of the seat rail is separated and the separating portion is installed on the rotating disk. When the rotating plate is returned to a predetermined position, the seat rail is continuous, and the seat is fixedly mounted on the rotating plate. Also good.

  It is preferable that an electric wire group constituting a wire harness that is continuously inserted through the rotation absorbing case, the harness rail, and the slide absorbing case is externally covered with a caterpillar type exterior material. The exterior material extends in the length direction on the belt-shaped flat plate and bends a plurality of folding lines spaced at intervals in the width direction to form a square tube, and at intervals in the length direction in the width direction. And one side of the cylindrical shape is separated by cutting, and the other side is made continuous, and one side is bent while the other side is not bent.

  As described above, in the wiring structure of the wire harness that is connected to the seat that performs both rotation and back-and-forth movement according to the present invention, the rotation absorbing case is fixed to the seat, and the slide absorbing case is provided on the floor side to move back and forth. In addition, the wire harness connected to the rotating seat can smoothly follow the forward and backward movement and rotation of the seat.

It is a perspective view which shows the sheet | seat of embodiment of this invention. (A) is the schematic which shows the state which has installed the wiring apparatus of the wire harness attached to the said sheet | seat in the lower part of a sheet | seat, (B) is the schematic which shows the connection state of the said wiring apparatus. It is a schematic perspective view of the said wiring apparatus. It is a top view of the case for rotation absorption. It is drawing which shows the action | operation of the said case for rotation absorption. The slider is shown, (A) is a perspective view, (B) is a cross-sectional view showing the attachment state of the slider, the rotation absorbing case and the harness rail. (A) (B) is the schematic which shows the case for slider absorption. (A) is a perspective view of the state where the wire harness is sheathed with an exterior material, and (B) is a development view of the exterior material. (A) (B) is drawing which shows a prior art example.

Hereinafter, embodiments of the present invention will be described with reference to FIGS.
As shown in FIG. 1, the seat 1 is mounted on a vehicle floor so as to be slidable in the front-rear direction X and to be rotatable in the arrow Y direction. The mechanism for sliding and rotating is not limited. For example, a support shaft protruding from the bottom surface of the seat 1 is rotatably mounted on the rotation base, and the wheel support shaft is protruded from the left and right lower surfaces of the rotation base, The seat rail 2 laid on the left and right is slidably fitted.

An electrical component is mounted on the seat 1, a wire harness for supplying power to the electrical component is wired inside the seat 1 as a seat harness 3, and a connector 3 </ b> C connected to the terminal of the seat harness 3 is disposed on the bottom surface of the seat 1. ing. A connector 5 </ b> A connected to one end of the wire harness 5 is fitted and connected to the seat harness 3. The wire harness 5 is constituted by a branch line branched from the trunk line 6 a of the floor harness 6.
The branch wire of the floor harness 6 and the wire harness may be separated and connected by connectors. In this case, the wire harness 5 serves as a relay harness interposed between the seat harness 3 and the floor harness 6.

A rotation absorbing case 10 is fixed to the bottom surface of the seat 1 as a routing device for inserting a wire harness 5 connected to the seat harness 3 in the seat 1. As shown in FIGS. 4 to 6, the upper part of the slider 12 is slidably fitted in an arcuate slide groove 11 provided in the rotation absorbing case 10.
As shown in FIG. 2, a front-rear linear harness rail 14 laid on the floor in parallel with the seat rail 2 is provided, and as shown in FIG. 3, a front-rear linear slide provided on the upper surface of the harness rail 14 The lower part of the slide 12 is slidably fitted in the groove 15.

A slide absorbing case 16 is installed in the lower part of the passenger compartment floor 9 continuously to the front end of the harness rail 14, and the wire harness 5 is pulled out from the opening of the slide absorbing case 16, and the trunk line 6a of the floor harness 6 is obtained. It is made to continue.
That is, as shown in FIG. 2B, the wire harness 5 connected to the seat harness 3 arranged inside the seat 1 via the connector 5A is inserted into the rotation absorbing case 10 from the opening 10b on the seat side. After detouring, the slider 12 that is slidably fitted in the arc-shaped slide groove 11 of the rotation absorbing case 10 passes through the slider 12 and is drawn out to the harness rail 14. 16 is pulled out to the floor side.

The rotation absorbing case 10, the slider 12, and the slide absorbing case 16 are all made of a resin molded product.
As shown in FIGS. 3 and 4, the rotation absorbing case 10 has a shape in which a bulging portion 10 e is provided on the half side portion in the circumferential direction of the semicircular annular portion 10 d so as to protrude toward the inner peripheral side. The rotation absorbing case 10 having such a shape is configured such that the shallow body is covered with a lid in a state in which the wire harness 5 is externally covered with an exterior 40 described later. A mounting plate 10 f provided on the distal end side of the bulging portion 10 e of the rotation absorbing case 10 is fixed to the bottom surface of the seat 1.

  The arc of the semi-annular portion 10d protruding from the bulging portion 10e of the rotation absorbing case 10 is made to correspond to the rotation locus of the seat 1, and the arc-shaped slide groove 11 is provided on the lower surface of the outer periphery of the semi-annular portion 10d. Yes. As shown in FIG. 6B, the upper portion of the slider 12 is slidably fitted into the arc-shaped slide groove 11 and protrudes downward, and is a straight line provided on the upper surface of the harness rail 14 laid below the seat 1. The lower part is slidably fitted in the slide groove 15. That is, the harness rail 14 extends in the tangential direction with respect to the outer peripheral surface of the rotation absorbing case 10 that continuously rotates when the seat 1 rotates.

As shown in FIG. 2A, the harness rail 14 is laid parallel to the inside of the seat rail 2, and the linear slide groove 15 is provided on the upper surface thereof along the entire length.
As shown in FIG. 6, the slider 12 that extends between the linear slide groove 15 of the harness rail 14 and the arc-shaped slide groove 11 of the rotation absorbing case 10 positioned above is a rectangular tube shape, as shown in FIG. 6. The fitting grooves 12b and 12c are provided on the upper and lower sides. As shown in FIG. 6B, the wire harness 5 passes through the slider 12, and the opposing surfaces of the fitting groove 12 b at the top of the slider 12 are on both side edges of the arc-shaped slide groove 11 of the rotation absorbing case 10. It is slidably fitted. Further, the opposing surface of the lower fitting groove 12 c is slidably fitted to both side edges of the linear slide groove 15 of the harness rail 14.

As shown in FIG. 7, the slide absorbing case 16 arranged continuously at the front end of the harness rail 14 includes a straight portion 16b continuous to the harness rail 14 and a circular arc portion 16c from the front end of the straight portion 16. It has a substantially J shape with a bulging portion 16d protruding rearward, and an opening 16f is provided at the tip of the bulging portion 16d to draw the wire harness to the floor side. The slide absorbing case 16 is closed by covering the shallow main body having the above-described shape with the wire harness 5 sheathed with the sheathing material 40 shown in FIG.
A band clip 19 is attached to the wire harness 5 pulled out from the opening 16f of the slide absorbing case 16, and locked to a locking hole (not shown) provided on the floor.

The wire harness 5 is continuously passed through the rotation absorbing case 10, the slider 12, the harness rail 14, and the slide absorbing case 16 with the exterior material 40 being sheathed.
The exterior material 40 is a caterpillar type assembling type protector described in Japanese Patent Application No. 2012-278727 related to the prior application of the present applicant. As shown in FIG. 8B, the exterior material 40 is formed by bending four folding lines 40a extending in the length direction on the belt-like flat plate and spaced apart in the width direction. In this state, a locking piece 40d protruding on one end side in the width direction is inserted and locked into a locking hole 40n provided on the other end side to be assembled into a quadrangular cylinder type. In this assembled state, the outer peripheral side of the cylindrical shape is separated by a notch 40b provided in the width direction with an interval in the length direction, the inner peripheral side is continuous, the outer peripheral side is bent, but the inner peripheral side is bent It is continuous with no state.
In a state where the wire harness 5 is sheathed with the exterior material 40, both sides are moved in contact with the bottom surface and the lid in the rotation absorbing case 10 and the slide absorbing case 16, and the wire harness 5 is held in a stable posture. In addition, it can move without rattling.

A method for assembling the wire harness 5 and assembling the seat 1 to be mounted on an automobile will be described.
First, in the wire harness assembly factory, the wire harness 5 made of a branch line branched from the trunk line of the floor harness 6 is passed through the slide absorbing case 16, the harness rail 14, the slider 12, and the rotation absorbing case 10, so that the wire harness 5 is assembled to the routing device.

  As described above, the wire harness 5 is transported to the automobile assembly plant in a state of being assembled to the routing device, the floor harness 6 is routed to the floor, and the slide absorbing case 16 and the harness rail 14 are mounted on the vehicle floor. It fixes to the lower surface of the room flooring 9. Further, the rotation absorbing case 10 is fixed to the lower surface of the sheet 1.

As described above, the wire harness 5 attached between the seat 1 and the floor of the automobile operates and follows the back and forth movement and rotation of the seat 1 as follows.
When the sheet 1 rotates, the rotation absorbing case 10 fixed to the sheet 1 also rotates in conjunction with it. The slider 12 fitted in the arcuate slide groove 11 of the rotation absorbing case 10 does not rotate because the lower part is fitted to the harness rail 14, and the rotation absorbing case 10 rotates with the slider 12 as a fulcrum. It will be.
Thus, since the rotation absorbing case 10 rotates while the slider 12 does not rotate, the insertion length of the wire harness 5 drawn through the slider 12 changes as shown in FIG. To follow the rotating motion.

  On the other hand, when the seat 1 moves back and forth, the slider 12 moves in the front-rear direction in the harness rail 14 via the rotation absorbing case 10, and the wire harness 5 inserted through the slider 12 absorbs the slide through the harness rail 14. Enter and exit the case 16. That is, when the seat 1 shown in FIG. 7B is retracted in the slide absorbing case 16, the slider 12 is retracted to pull out the wire harness 5 from the slide absorbing case 16, while when the seat 1 is advanced, FIG. As shown, the slider 12 moves forward and pushes the wire harness 5 into the slide absorbing case 16 to detour, thereby causing the wire harness 5 to follow the longitudinal movement of the seat 1.

  As described above, the wire harness 5 is continuously inserted into the rotation absorbing case 10, the slider 12, the harness rail 14, and the slide absorbing case 16, so that one end of the wire harness 5 is connected to the seat 1 that moves back and forth. On the other hand, the wire harness 5 can smoothly follow the movement of the seat 1 with the other end fixed to the floor side.

The present invention is not limited to the above-described embodiment, and the straight portion of the slide absorbing case may be extended to provide a linear slide groove, and the slider may be slid to omit the harness rail.
Further, the wire harness 5 may be externally covered with a corrugated tube, or may be externally wound with tape, without being externally covered with the external material 40.

DESCRIPTION OF SYMBOLS 1 Seat 2 Seat rail 3 Seat harness 5 Wire harness 6 Floor harness 10 Rotation absorption case 11 Arc-shaped slide groove 12 Slider 14 Harness rail 15 Linear slide groove 16 Slide absorption case 40 Exterior material

Claims (3)

A rotation absorbing case is fixed to a seat that can be moved back and forth and rotated, and after the wire harness is inserted into the rotation absorbing case from the opening on the seat side and detoured, the rotation absorbing case is absorbed. Penetrating a slider that is slidably fitted at both ends to an arc-shaped slide groove provided in the case and a harness rail laid on the floor,
Install a slide absorbing case at the front end of the harness rail, insert a wire harness to be pulled out from the slider from the front end of the harness rail into the slide absorbing case, bypass the inside of the slide absorbing case, and open from the other end opening. A wiring device for a wire harness for a seat configured to be pulled out to the floor side. The rotation absorbing case has a shape in which a bulging portion protruding toward the inner peripheral side is provided on a half side portion in the circumferential direction of the semicircular annular portion, and a wire harness insertion port on the seat harness side is provided at an inner end of the bulging portion. And providing the arc-shaped slide groove on the lower surface of the outer periphery of the semi-annular portion,
The wire harness inserted from the wire harness insertion port is routed through the semicircular annular portion after wiring the inside of the bulging portion to the outer peripheral side, and is drawn out to the harness rail through the slider fitted in the arcuate slide groove. Item 2. A wiring device for a wire harness for a sheet according to Item 1.   The harness rail is composed of a rail in the front-rear linear direction, has a linear slide groove on the upper surface thereof for slidably fitting the slider, and is arranged in parallel with the seat rail laid in the front-rear direction on the floor. The slide absorbing case arranged continuously at the front end of the rail has a substantially J-shape provided with a linear portion continuous to the harness rail and a bulging portion protruding rearward from the front end of the linear portion via an arc portion. The apparatus for routing a wire harness for a seat according to claim 1 or 2, wherein the opening for pulling out the wire harness to the floor side is provided at the tip of the bulging portion.

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