JP2007116781A - Cabling device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a cabling device in which a wiring harness contained in a case is operated smoothly and the wire group of the wiring harness can be protected. <P>SOLUTION: The cabling device 1 for routing the wiring harness 5 across a vehicle body of fixed structure and a slide sheet 2 of movable structure provided so as to be slidable on the vehicle body comprises a case 10 for containing the wiring harness 5 while being extended in the sliding direction of the slide sheet 2 and turning up in a U-shape, and an interlocking slider 14 holding the wiring harness 5 on the side closer to the tip from a turn-up portion and supported by the case 10 movably in the sliding direction of the slide sheet 2. The wiring harness 5 has a wire group 31 and a reinforcing wire 32 juxtaposed to the wire group 31 and covered with a mesh tube 30 manufactured by knitting a resin thread in a cylindrical shape. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a routing device that routes a wire harness across a fixed structure such as a vehicle body of an automobile and a movable structure such as a slide seat and a slide door that slide and move relative to the vehicle body.

  For example, an electric auxiliary machine such as an electric slide mechanism is incorporated in a slide seat or a slide door of a vehicle such as an automobile. In order to supply power to these auxiliary machines, a wire harness is straddled across the vehicle body and the slide seat or the slide door. Has been routed. And what was shown in FIG. 7 is known as a conventional wiring apparatus for wiring a wire harness over a vehicle body and a slide seat (for example, refer patent document 1).

  As shown in FIG. 7, the routing device 101 disclosed in Patent Document 1 includes a synthetic resin box-like case 103 that houses the wire harness 102 in a U-shaped state, and slide movement of the slide sheet. And a movable body 104 supported by the case 103 so as to be movable in the direction. The case 103 includes a harness housing portion 105 that houses the wire harness 102 and a movable body moving portion 106 adjacent to the harness housing portion 105. The harness housing portion 105 and the movable body moving portion 106 are connected to the case 103. It is divided by a partition wall 107 protruding from the bottom wall.

  A slit 108 that extends in the slide movement direction of the slide sheet and through which the movable body 104 is inserted is provided on the upper wall of the case 103 on the movable body moving unit 106 side. The movable body 104 has its harness fixing portion 109 inserted into the case 103 through the slit 108, and this harness fixing portion 109 is disposed in the harness housing portion 105 of the case 103 beyond the partition wall 107, and the wire The front end side of the folded portion of the harness 102 is held.

  The distal end side of the wire harness 102 is held by the harness fixing portion 109 of the movable body 104, arranged along the harness routing portion 110 of the movable body 104, led out of the case 103, and provided at the distal end of the connector. Reference numeral 111 denotes a slide seat auxiliary machine. As the slide sheet slides, the movable body 104 that holds the distal end side of the wire harness 102 moves in conjunction with the slide sheet while appropriately deforming the wire harness 102 within the case 103.

JP 2005-59745 A

  In the routing device 101 described above, the wire harness 102 housed in the case 103 slides on the inner wall surface of the case 103 as the movable body 104 slides. Therefore, the wire harness 102 accommodated in the case 103 is covered with a flexible corrugated tube formed of a resin such as PP (polypropylene) in a cylindrical shape and a bellows shape, thereby the corrugated tube. The wire group inserted through is protected.

  However, since the corrugated tube has a bellows shape, the corrugated tube is easily caught by irregularities on the inner wall surface of the case 103 or foreign matter that has entered the case 103, so that the wire harness 102 accommodated in the case 103 can be smoothly operated. There was a risk of interference. In addition, the sliding resistance is relatively large, and it is necessary to apply grease or the like for smooth operation.

  In the routing device 101 described above, the movable body 104 holds the distal end side of the wire harness 102 in which the connector 111 is connected to a slide seat auxiliary machine or the like by the harness fixing portion 109, thereby Pulled to the tip side and interlocked with the slide sheet. Here, as described above, the corrugated tube of the wire harness 102 accommodated in the case 103 is caught in the unevenness of the inner wall surface of the case 103 or a foreign matter that has entered the case 103, and is accommodated in the case 103. When the wire harness 102 and the movement of the movable body 104 are obstructed accordingly, a load acts on the wire harness 102 housed in the case 103 and the distal end side of the wire harness 102, and the wire harness 102 There was a possibility that the electric wire group would be damaged.

  If a connecting member is separately bridged between the movable body 104 and the slide sheet, and the movable body 104 is pulled by the connecting member, the wire harness 102 can be operated when the operation of the movable body 104 is hindered. Although it can be avoided that a load acts on the distal end side, the number of parts increases and a connecting member assembling step is required, which raises a concern about an increase in manufacturing cost of the routing device 101.

  Further, in the above-described routing device 101, it is preferable to narrow the width of the slit 108 of the case 103 in order to prevent the entry of foreign matter. Here, the thickness of the harness routing portion 110 of the movable body 104 that passes through the slit 108 cannot be made larger than the width of the slit 108, and there is a concern that the harness routing portion 110 may be insufficient in strength. Since the portion 110 is exposed to the outside of the case 103, it may be damaged by an external force.

  This invention is made | formed in view of the situation mentioned above, The objective is to make the wiring apparatus accommodated in the case operate smoothly, and to protect the electric wire group of the said wire harness. It is to provide.

  The above-described object is achieved by the following routing devices (1) to (4) according to the present invention.

(1) A routing device for routing a wire harness across a fixed structure and a movable structure provided slidably on the fixed structure,
A case in which the wire harness extends in the sliding movement direction of the movable structure and is folded back into a U shape and accommodated;
A slider that holds the distal end side of the folded portion of the wire harness and is supported by the case so as to be movable in a sliding movement direction of the movable structure and interlocked with the movable structure;
With
A wiring device, wherein the wire harness includes an electric wire group and a reinforcing wire arranged in parallel to the electric wire group, and is covered with a net tube in which a resin thread is knitted into a cylindrical shape.

  (2) The routing device according to (1), wherein the slider holds at least a reinforcing wire of the wire harness.

(3) The reinforcing wire is branched from the electric wire group and bridged by the slider and the movable structure,
The routing device according to (2), wherein the slider is pulled by the reinforcing wire bridged between the movable structure and interlocked with the movable structure.

(4) The slider is housed in the case,
The wire group of the wire harness and the reinforcing wire branched from the wire group are led out of the case through a slit formed in the upper wall of the case and extending in the sliding movement direction of the movable structure. The routing device according to (3), which is characterized.

  According to the routing device having the configuration (1), the wire harness is covered with a net tube in which resin yarns are knitted in a cylindrical shape. Since this mesh tube has a small surface friction and excellent wear resistance, it is suitable for protecting the electric wire group inside the wire harness. However, due to the flexibility of the net tube, the rigidity of the wire harness is reduced, and the wire harness may bend in a meandering manner at a portion other than the U-shaped folded portion as the movable structure slides. Therefore, in the routing device of the present configuration, the reinforcing wires are arranged in parallel in the electric wire group to ensure the rigidity of the wire harness. Thereby, it is prevented that the wire harness bends in a meandering manner at a portion other than the U-shaped folded portion, and the wire harness can be operated smoothly to protect the internal electric wire group.

  According to the routing device having the configuration of (2) above, the slider holds at least the reinforcing wire, and even if the operation of the wire harness is obstructed, the slider is pulled by the slider, The acting load is borne by the reinforcing wire, and the load acting on the electric wire group can be reduced. In addition, it is preferable to relax the wire group as compared with the reinforcing wire because it is possible to prevent a load from acting on the wire group more reliably.

  According to the routing device having the above configuration (3), the slider is pulled by a reinforcing wire bridged between the slider and the movable structure and interlocked with the movable structure. The group is connected to the movable structure in a relaxed state as compared to the branched reinforcing wire. Thereby, even if operation | movement of a wire harness should be prevented and the operation | movement of a slider is prevented accompanying it, it can prevent that a load acts on an electric wire group. Then, according to the routing device of this configuration, the reinforcing wire held by the slider is used as a connecting member between the slider and the movable structure, and no separate connecting member is provided. There is no increase in cost.

  According to the routing device having the configuration of (4) above, the slider is housed in the case, and part of the slider is not exposed to the outside as in the prior art. There is no fear of doing it. Then, the wire group of the wire harness and the reinforcing wire branched from the wire group are led out of the case through a slit formed in the upper wall of the case and extending in the sliding movement direction of the movable structure, It is connected. Therefore, the width of the slit is sufficient if it can be inserted through the electric wire group and the reinforcing wire, and the width of the slit can be reduced as compared with the case where a part of the slider is inserted as in the conventional case. Thereby, the entrance of foreign matter into the case can be prevented, and consequently, the operation of the wire harness accommodated in the case can be prevented from being obstructed by the foreign matter.

  ADVANTAGE OF THE INVENTION According to this invention, the wiring apparatus which can operate the wire harness accommodated in the case smoothly and can protect the electric wire group of the said wire harness can be provided.

  DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, preferred embodiments of a mounting structure for a routing device according to the invention will be described in detail with reference to the drawings.

  1 shows an embodiment of a routing device according to the present invention, a perspective view showing an application example to a vehicle slide seat, FIG. 2 is an exploded perspective view of the routing device shown in FIG. 1, and FIG. 4 is a cross-sectional view taken along arrow IV-IV in FIG. 3, FIG. 5 is a perspective view of the slider shown in FIG. 2, and FIG. 6 is a cross-sectional view taken along arrow VI-VI in FIG. .

  As shown in FIG. 1, the routing device 1 of the present embodiment is applied to a vehicle slide seat (movable structure) 2. A vehicle body (fixed structure) (not shown) is provided with a guide rail 3 extending in the front-rear direction of the vehicle body. The bottom surface of the slide seat 2 is engaged with the guide rail 3, A slider 4 supported by the guide rail 3 is attached so as to be slidable in the longitudinal direction of the vehicle body. Thus, the slide seat 2 is slidable in the front-rear direction of the vehicle body. The routing device 1 is arranged in parallel with the guide rail 3 along the guide rail 3 and routes the wire harness 5 across the vehicle body and the slide seat 2.

  As shown in FIG. 2, the routing device 1 is attached to a case main body 11 in which a slit 21 is formed in the upper wall of a rectangular cylindrical long member over the entire length in the longitudinal direction, and an end of the case main body 11. The case 10 is composed of caps 12 and 13 that close the ends, and the slider 14 is housed in the case 10. The case main body 11 is attached to the vehicle body with its longitudinal direction arranged parallel to the slide movement direction of the slide seat 2.

  An opening 23 for introducing the wire harness 5 extending from the vehicle body into the case 10 is provided on one side of the cap 12 attached to one end of the case body 11. As shown in FIG. 3, the wire harness 5 introduced into the case 10 from the opening 23 is folded back into a U shape and accommodated in the case 10. In FIG. 3, the case body 11 is shown with its upper wall broken.

  As shown in FIG. 2, the wire harness 5 includes an electric wire group 31 and a reinforcing wire 32 arranged in parallel with the electric wire group 31, and at least a portion accommodated in the case 10 is made of, for example, nylon, polyester, PET, It is covered with a net tube 30 in which a resin thread such as PA (polyamide) is knitted in a cylindrical shape. The net tube 30 can be expanded and contracted by a predetermined amount due to its structure (the amount of elongation is much smaller than the amount of contraction), expands when contracted, and contracts when expanded.

  As shown in FIG. 2, two ribs 24, 24 extending in the longitudinal direction of the case main body 11 are projected from the bottom wall of the case main body 11 at intervals. Between each rib 24 and the side wall of the case main body 11 facing the rib 24, a gap (hereinafter referred to as a wire harness accommodating region 25) capable of accommodating the wire harness 5 is provided.

  As shown in FIGS. 3 and 4, the wire harness 5 introduced into the case 10 from the opening 23 of the cap 12 is wired to one wire harness housing region 25 that continues to the opening 23, and the ribs 24 and 24 are arranged. And is folded in a U-shape, and is wired in the other wire harness housing area 25. That is, the two ribs 24, 24 are provided at positions passing between the forward portion 5a and the return portion 5b of the wire harness 5 extending in the longitudinal direction of the case body 11, in other words, The wire harness 5 is provided so as to intersect with a portion folded in a U shape. The folded portion of the wire harness 5 is placed on the two ribs 24, 24 and is spaced apart from the bottom wall of the case body 11.

  The slider 14 accommodated in the case 10 is formed so as to leave a slight gap between the upper wall of the case body 11, both side walls, and the two ribs 24, 24. 24 and 24 is supported so as to be slidable in the longitudinal direction of the case main body 11. The slider 14 is guided to slide by sliding on the inner wall surfaces of both side walls of the case body 11 and the upper end surfaces of the two ribs 24 and 24. In other words, the entire case body 11 functions as a guide rail that guides the sliding movement of the slider 14.

  As shown in FIGS. 2 to 6, one wire harness wiring region in which one end portion of the slider 14 is wired with the tip end side (that is, the return portion 5 b) from the folded portion of the wire harness 5. A holding portion 26 that extends toward 25 and introduces the wire harness 5 into the slider 14 and holds the wire harness 5 is extended.

  The holding portion 26 includes a support piece 40 formed along the outer shape of the electric wire group 31 of the wire harness 5 and a protrusion 41 provided on the outer surface of the support piece 40 and provided with an insertion hole. The support piece 40 is inserted into the end portion of the net tube 30 so as to be interposed between the net tube 30 of the wire harness 5 and the wire group 31 and the reinforcing wire 32. The binding band passes through the mesh of the mesh tube 30 of the wire harness 5, is inserted into the insertion hole provided in the protrusion 41 of the holding portion 26, and is wound around the outer periphery of the mesh tube 30 to be meshed. The slider 14 holds the wire harness 5 by integrally bundling 30 and the holding portion 26.

  At the rear end portion of the slider 14 provided with the holding portion 26, a reinforcing wire lead-out portion 46 opened upward is provided at the center in the width direction, and adjacent to the reinforcing wire lead-out portion 46. Thus, an opening 47 that is larger than the reinforcing wire lead-out portion 46 is provided. Further, at the front end portion of the slider 14, an electric wire group lead-out portion 27 that opens upward is provided at the center in the width direction.

  Inside the slider 14, ribs 44 and 45 are suspended from the upper wall portion 42 so as to define a passage from the holding portion 26 to the wire group lead-out portion 27. These ribs 44 and 45 are formed so that a gap smaller than the thickness of the electric wire group 31 of the wire harness 5 and larger than the thickness of the reinforcing wire 32 is placed between the bottom wall portion 43. The wire group 31 of the wire harness 5 introduced into the slider 14 through the holding portion 26 passes between the ribs 44 and 45 and is led out of the slider 14 from the wire group lead-out portion 27.

  The reinforcing wire 32 of the wire harness 5 introduced into the slider 14 through the holding portion 26 is branched from the wire group 31, passes through the gap between the rib 45 and the bottom wall portion 43, and first passes through the opening 47. Derived outside the slider 14. A crimping terminal press-fitted into the reinforcing wire lead-out portion 46 is fixed to the reinforcing wire 32 led out from the opening 47, and the crimping terminal is press-fitted and fixed into the reinforcing wire lead-out portion 46, so that the slider 14 holds the reinforcing wire 32.

  Further, referring to FIG. 1, the slit 21 of the case main body 11 is provided at the center in the width direction of the upper wall of the case main body 11, and the electric wire group lead-out portion 27 and the reinforcing wire lead-out portion 46 of the slider 14 are Each is disposed at a position facing the slit 21 of the case body 11. The reinforcing wire 32 of the wire harness 5 led out from the reinforcing wire lead-out portion 46 of the slider 14 to the outside of the slider 14 is led out of the case 10 from the slit 21 provided on the upper wall of the case body 11 and slides. It is connected to the auxiliary machine of the seat 2. The wire group 31 of the wire harness 5 led out from the wire group lead-out portion 27 of the slider 14 to the outside of the slider 14 is led out of the case 10 from the slit 21 provided on the upper wall of the case body 11 and reinforced. It is connected to an auxiliary machine or the like of the slide sheet 2 in a relaxed state compared to the wire 32 for use.

  As the slide sheet 2 slides, the slider 14 is pulled by the reinforcing wire 32 bridged between the slide sheet 2 and the folded portion of the wire harness 5 is moved back and forth in the slide movement direction as shown in FIG. The wire harness 5 is appropriately deformed in the case 10 so that the inner wall surface of both side walls of the case main body 11 and the upper end surfaces of the two ribs 24 and 24 are guided and slid. To do. One side portion of the slider 14 is located above the forward portion 5a of the wire harness 5, and slides while correcting the rising of the forward portion 5a from the bottom wall of the case body 11.

  As shown in FIG. 1, the width of the slit 21 is set smaller than the interval between the two ribs 24, 24 provided on the bottom wall of the case body 11. It is located vertically above the area between. Accordingly, when foreign objects such as dust and pebbles enter the case 10 from the slit 21, these foreign substances are accommodated between the two ribs 24 and 24.

  As shown in FIGS. 3 and 4, the case body 11 is fastened to the vehicle body and attached to the vehicle body. A bolt 22 as a fastening member for fastening the case main body 11 to the vehicle body is inserted into the vehicle body through a screw insertion hole 28 provided between the two ribs 24 and 24. The two ribs 24, 24 are formed higher than the head 22 a of the bolt 22.

  By the movement of the slider 14 accompanying the sliding movement of the slide sheet 2, the wire harness 5 extends or shortens the lengths of the forward portion 5a and the return portion 5b in a contradictory manner, and the two U-shaped folded portions are thereby formed. The sliders 14 are moved back and forth in the sliding movement direction while sliding the upper end surfaces of the ribs 24, 24. The bolt 22 is disposed between the two ribs 24, 24, and the two ribs 24, 24 are formed higher than the head 22 a of the bolt 22, so that the folded portion of the wire harness 5 and the slider 14 are formed. Smoothly moves forward and backward without being caught by the head 22a of the bolt 22.

  According to the routing device 1 of the present embodiment, the wire harness 5 is covered with the net tube 30 in which a resin yarn is knitted into a cylindrical shape. The mesh tube 30 is suitable for protecting the electric wire group 31 inside the wire harness 5 because the surface friction is small and the wear resistance is excellent. However, due to the flexibility of the mesh tube 30, the rigidity of the wire harness 5 decreases, and the wire harness 5 may be bent in a meandering manner at a portion other than the U-shaped folded portion as the slider 14 slides. . Therefore, in the routing device 1 of this configuration, the reinforcing wires 32 are arranged in parallel with the electric wire group 31 to ensure the rigidity of the wire harness 5. Thereby, the wire harness 5 is prevented from being bent in a meandering manner at a portion other than the U-shaped folded portion, and the wire harness 5 can be smoothly operated to protect the internal electric wire group 31.

  Further, according to the routing device 1 of the present embodiment, the slider 14 holds at least the reinforcing wire 32 and is pulled by the slider 14 even if the operation of the wire harness 5 is obstructed. Thus, the load acting on the wire harness 5 can be borne by the reinforcing wire 32 and the load acting on the wire group 31 can be reduced.

  Further, according to the routing device 1 of the present embodiment, the slider 14 is configured to be interlocked with the slide sheet 2 by being pulled by the reinforcing wire 32 bridged between the slider 14 and the slide sheet 2. That is, the electric wire group 31 is connected to the slide sheet 2 in a relaxed state as compared with the branched reinforcing wire 32. Thereby, even if the operation of the wire harness 5 is obstructed and the operation of the slider 14 is obstructed accordingly, it is possible to prevent a load from acting on the electric wire group 31. And according to the routing device 1 of the present embodiment, the reinforcing wire 32 held by the slider 14 is used as a connecting member between the slider 14 and the slide sheet 2, and no connecting member is provided separately. The manufacturing cost of the routing device 1 is not increased.

  Further, according to the routing device 1 of the present embodiment, the slider 14 is housed in the case 10 and part of the slider 14 is not exposed to the outside as in the prior art, so that it receives external force directly. There is no risk of damage. The wire group 31 of the wire harness 5 and the reinforcing wire 32 branched from the wire group 31 are formed outside the case 10 through the slit 21 formed on the upper wall of the case body 11 and extending in the sliding movement direction of the slide sheet 2. Derived and connected to the slide sheet 2 respectively. Therefore, it is sufficient that the width of the slit 21 is a width that allows the wire group 31 and the reinforcing wire 32 to be inserted, and the width of the slit 21 is made smaller than when a part of the slider 14 is inserted as in the conventional case. Can do. As a result, entry of foreign matter into the case 10 can be prevented, and as a result, the operation of the wire harness 5 accommodated in the case 10 can be prevented from being obstructed by the foreign matter.

  In addition, this invention is not limited to embodiment mentioned above, A deformation | transformation, improvement, etc. are possible suitably.

It is a perspective view which shows one Embodiment of the routing apparatus which concerns on this invention, and shows the application example to the slide seat for vehicles. It is a disassembled perspective view of the routing apparatus shown in FIG. It is a top view of the routing apparatus shown in FIG. FIG. 4 is a cross-sectional view taken along the line IV-IV in FIG. 3. FIG. 3 is a perspective view of the slider shown in FIG. 2. It is VI-VI arrow sectional drawing in FIG. It is a perspective view of the conventional routing device.

Explanation of symbols

1 Routing device 2 Slide sheet (movable structure)
5 Wire harness 10 Case 11 Case body 12 Cap 13 Cap 14 Slider 30 Mesh tube 31 Wire group 32 Reinforcing wire

Claims (4)

A routing device for routing a wire harness across a fixed structure and a movable structure slidably provided on the fixed structure,
A case in which the wire harness extends in the sliding movement direction of the movable structure and is folded back into a U shape and accommodated;
A slider that holds the distal end side of the folded portion of the wire harness and is supported by the case so as to be movable in a sliding movement direction of the movable structure and interlocked with the movable structure;
With
A wiring device, wherein the wire harness includes an electric wire group and a reinforcing wire arranged in parallel to the electric wire group, and is covered with a net tube in which a resin thread is knitted into a cylindrical shape.   The routing device according to claim 1, wherein the slider holds at least a reinforcing wire of the wire harness. The reinforcing wire is branched from the wire group and bridged between the slider and the movable structure;
The routing device according to claim 2, wherein the slider is pulled by the reinforcing wire bridged between the movable structure and interlocked with the movable structure. The slider is housed in the case;
The wire group of the wire harness and the reinforcing wire branched from the wire group are led out of the case through a slit formed in the upper wall of the case and extending in the sliding movement direction of the movable structure. The routing device according to claim 3, wherein the routing device is characterized.

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