Wire harness structure

Abstract

To provide a cable wiring structure capable of suppressing damage to a cable routing body 40 accompanying advance and retreat of a slide seat 4.SOLUTION: A cable wiring structure for supplying electricity to a slide seat 4 slidably supported along the longitudinal direction X of a fixing rail 2 by routing a cable routing body 40 includes a housing case 80 arranged along the fixing rail 2 and housing the cable routing body 40 along the front-rear direction X, and a holding member 90 that holds a pull-out portion 40b of the cable routing body 40 pulled out from the housing case 80, and the holding member 90 is configured to be able to advance and retreat in the front-rear direction X following the advance and retreat of the slide seat 4 in the housing case 80, the housing case 80 includes a base 816 that holds one end of the cable routing body 40, and an opening 80a through which the holding member 90 advances and retreats, and the cable routing body 40 is formed with a length that can follow the advance and retreat of the holding member 90.SELECTED DRAWING: Figure 2

Description

[Technical field]

[0001] The present invention relates to an electric wire arrangement structure for a flexible flat cable that is arranged in a vehicle such as an automobile to supply power to a slide seat that is supported and slidable so as to be able to move back and forth along the longitudinal direction of a fixed rail fixed to the vehicle body. [Background technology]

[0002] 2. Description of the Related Art Recently, in vehicles such as automobiles, for example, sliding seats have been motorized or electrical components have been attached to the sliding seats, so that electricity is supplied to the sliding seats from the vehicle body. For example, Patent Document 1 discloses a power supply device in which a seat-side electric wire provided on the side of a sliding seat that is supported so as to be able to slide back and forth along the longitudinal direction of a fixed rail (slide rail) fixed to the vehicle body, and a vehicle-side electric wire provided on the side of the vehicle body are connected by a ribbon-shaped electric wire (flexible flat cable).

[0003] Specifically, one end of the ribbon-shaped electric wire in Patent Document 1 is connected to a first connector fixed to the slider, and the other end is connected to a second connector fixed to the rear end of the fixed rail. The ribbon-shaped electric wire in Patent Document 1 is accommodated inside the fixed rail in an inverted state in a substantially U-shape, and is pulled out to the outside through a slit in the fixed rail.

[0004] However, the slit in the fixed rail is opened wide enough to allow the slider to move back and forth, and is likely to become an intrusion point for foreign matter. For this reason, in Patent Document 1, there was a risk that the ribbon-shaped electric wire routed inside the fixed rail would be damaged by sliding against a foreign matter that had entered inside the fixed rail. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] JP 2019-6274 A Summary of the Invention [Problem to be solved by the invention]

[0006] In view of the above-mentioned problems, an object of the present invention is to provide an electric wire routing structure capable of suppressing damage to a belt-shaped electric wire caused by the advancement and retreat of a slide sheet. [Means for solving the problem]

[0007] The present invention relates to an electric wire arrangement structure for supplying electricity to a sliding seat that is supported and slidable along the longitudinal direction of a fixed rail fixed to a vehicle body, the sliding seat being supported so as to be capable of moving forward and backward along the longitudinal direction of the fixed rail fixed to the vehicle body, by arranging a ribbon-shaped electric wire, one end of which is electrically connected to a vehicle body-side electric wire and the other end of which is electrically connected to a seat-side electric wire, the electric wire arrangement structure including: a storage case that is arranged along the fixed rail and that stores the ribbon-shaped electric wire along the longitudinal direction; and a holding member that holds a drawn-out portion of the ribbon-shaped electric wire drawn out from the storage case, the holding member being configured to be capable of moving forward and backward within the storage case in the longitudinal direction following the advancement and retreat of the sliding seat, the storage case being provided with a base that holds the one end of the ribbon-shaped electric wire, and an opening that opens and extends in the longitudinal direction and through which the holding member advances and retreats, the ribbon-shaped electric wire being formed to a length that can follow the advancement and retreat of the holding member. In the storage case, the belt-shaped electric wire is stored in a U-shape with a bent-back portion between a portion held by the base of the storage case and the drawn-out portion, and the storage case is provided with a case-side bend restricting portion that protrudes toward the bent-back portion of the belt-shaped electric wire and restricts bending of the belt-shaped electric wire on the inside of the U-shape near the base, and the holding member is provided with a holding member-side bend restricting portion that protrudes toward the bent-back portion of the belt-shaped electric wire and restricts bending of the belt-shaped electric wire on the inside of the U-shape of the belt-shaped electric wire. It is characterized by:

[0008] The ribbon-shaped electric wire is a flexible flat cable in which a plurality of conductors arranged in parallel are sandwiched between insulating sheets, or a flat cable in which a plurality of coated electric wires with a round cross section are arranged in parallel.

[0009] According to this invention, the electric wire routing structure can suppress damage to the belt-shaped electric wire caused by the advancement and retreat of the slide sheet. Specifically, since the retaining member is configured to be able to move forward and backward through the opening of the storage case rather than through a slit in the fixed rail, the wire routing structure allows the retaining member to be formed narrower than the slider that supports the slide seat.

[0010] Therefore, the electric wire routing structure can form an opening in the storage case that is narrower than the slit in the fixed rail, which makes it possible to prevent foreign objects from entering the storage case more effectively than the fixed rail.

[0011] Furthermore, since the ribbon-shaped electric wire housed in the housing case is held by the base of the housing case and the holding member, the electric wire routing structure does not move back and forth between the fixed rail and the housing case as the slide sheet moves forward and backward. Therefore, the electric wire routing structure can prevent damage to the ribbon-shaped electric wire due to sliding with the fixed rail.

[0012] Therefore, the electric wire routing structure can suppress damage to the belt-shaped electric wire caused by the advancement and retreat of the slide sheet. In addition, since damage to the belt-shaped electric wire can be suppressed, the electric wire routing structure can eliminate the need for a protective tube for protecting the belt-shaped electric wire, for example, and can reduce the number of parts.

[0013] Furthermore, within the storage case, the ribbon electric wire is stored in a U-shape with a bent portion between the portion held at the base of the storage case and the pull-out portion, and the storage case is provided with a case-side bend regulating portion on the inside of the U-shape near the base, which protrudes toward the bent portion of the ribbon electric wire and regulates the bending of the ribbon electric wire, and the holding member is provided with a holding member-side bend regulating portion on the inside of the U-shape of the ribbon electric wire, which protrudes toward the bent portion of the ribbon electric wire and regulates the bending of the ribbon electric wire.

[0014] The restriction of the bending of the ribbon-shaped electric wire means that the radius of curvature of the bent-back portion is restricted so as not to fall below a predetermined value. According to this configuration, the electric wire routing structure can further reduce damage to the belt-like electric wires caused by the advancement and retreat of the slide sheet, and can stably ensure the conductivity of the belt-like electric wires.

[0015] Specifically, since the ribbon electric wire does not move back and forth between the fixed rail and the storage case, the length of the portion of the ribbon electric wire that is stored in the storage case does not change as the sliding sheet moves forward and backward.

[0016] Therefore, inside the accommodating case, the bent-back portion of the ribbon-shaped electric wire is deformed so that the radius of curvature gradually changes as the holding member advances and retreats. At this time, the electric wire routing structure can regulate the change in the radius of curvature of the bent-back portion by the holding member side bend regulating portion and the case side bend regulating portion.

[0017] For example, when the retaining member moves toward the bent-back portion, the wire routing structure can prevent the radius of curvature of the bent-back portion from becoming extremely small or the ribbon-shaped wire from bending starting from the vicinity of the retaining member, by the retaining member side bend restriction portion.

[0018] On the other hand, when the retaining member moves to the side opposite the bent-back portion, the case side bend restricting portion of the electric wire routing structure can prevent the radius of curvature of the bent-back portion from becoming extremely small or the ribbon-shaped electric wire from bending starting from near the base portion. As a result, the electric wire routing structure can further reduce damage to the ribbon-like electric wires caused by the advancement and retreat of the slide sheet, and can stably ensure the conductivity of the ribbon-like electric wires.

[0019] The present invention relates to an electric wire arrangement structure for supplying electricity to a sliding seat that is supported and slidable along the longitudinal direction of a fixed rail fixed to a vehicle body, the sliding seat being supported so as to be capable of moving forward and backward along the longitudinal direction of the fixed rail fixed to the vehicle body, by arranging a ribbon-shaped electric wire, one end of which is electrically connected to a vehicle body-side electric wire and the other end of which is electrically connected to a seat-side electric wire, the electric wire arrangement structure including: a storage case that is arranged along the fixed rail and that stores the ribbon-shaped electric wire along the longitudinal direction; and a holding member that holds a drawn-out portion of the ribbon-shaped electric wire drawn out from the storage case, the holding member being configured to be capable of moving forward and backward within the storage case in the longitudinal direction following the advancement and retreat of the sliding seat, the storage case being provided with a base that holds the one end of the ribbon-shaped electric wire, and an opening that opens and extends in the longitudinal direction and through which the holding member advances and retreats, the ribbon-shaped electric wire being formed to a length that can follow the advancement and retreat of the holding member. In the storage case, the belt-shaped electric wire is stored in a state in which the portion held by the base of the storage case and the drawn-out portion are routed from the base toward one side in the longitudinal direction, and then bent back at a first bent-back portion, and the belt-shaped electric wire is routed from the first bent-back portion toward the other side in the longitudinal direction, and then bent back at a second bent-back portion. The storage case is provided with a case-side bend restricting portion protruding toward the first bent-back portion of the belt-shaped electric wire near the base on the base side of the belt-shaped electric wire bent back at the first bent-back portion and restricting bending of the belt-shaped electric wire, and the holding member is provided with a holding member-side bend restricting portion protruding toward the second bent-back portion of the belt-shaped electric wire on the holding member side of the belt-shaped electric wire bent back at the second bent-back portion and restricting bending of the belt-shaped electric wire. It is characterized by:

[0020] In this way, In the storage case, the belt-shaped electric wire is housed in a state in which the portion held by the base of the storage case and the drawn-out portion are routed from the base toward one side in the longitudinal direction and then bent back at a first bent-back portion, and the belt-shaped electric wire is housed in a state in which the portion between the portion held by the base of the storage case and the drawn-out portion is routed from the base toward the other side in the longitudinal direction and then bent back at a second bent-back portion, and the storage case has a base side of the belt-shaped electric wire bent back at the first bent-back portion and a belt-shaped electric wire disposed in the vicinity of the base. The electric wire routing structure has a case-side bending restricting portion that protrudes toward the first bent-back portion side of the electric wire and restricts bending of the electric wire strip, and the holding member has a holding member-side bending restricting portion that protrudes toward the second bent-back portion side of the electric wire strip on the holding member side of the electric wire strip bent back at the second bent-back portion and restricts bending of the electric wire strip. This makes it possible to reduce the size of the storage case in the thickness direction on the other side in the longitudinal direction than the base. Therefore, the electric wire routing structure can reduce damage to the electric wire strip and further reduce the size of the storage case.

[0021] As an aspect of the present invention, the opening of the storage case may open toward an upper portion of the storage case. According to this configuration, even if the holding member tilts in the longitudinal direction as the slide sheet advances and retreats, the electric wire routing structure prevents the holding member from coming into contact with the edge of the opening.

[0022] As a result, the electric wire routing structure can smoothly slide the holding member in the longitudinal direction in accordance with the advancement and retreat of the slide sheet. Therefore, the electric wire routing structure can prevent the ribbon-shaped electric wire from being unintentionally bent due to, for example, the smooth sliding movement of the holding member being hindered. Therefore, the electric wire routing structure can better prevent damage to the ribbon-shaped electric wires caused by the advancement and retreat of the slide sheet.

[0023] As a further aspect of the present invention, the opening of the storage case may be open toward one side in a substantially horizontal direction of the storage case. According to this configuration, the electric wire routing structure can prevent foreign objects from entering the inside of the storage case from above, compared to an opening that opens upward, for example. Therefore, the electric wire routing structure can prevent damage to the ribbon-shaped electric wire due to sliding with foreign objects inside the storage case.

[0024] As another aspect of the present invention, the storage case may be provided with an inclined wall portion that faces the ribbon electric wire in a thickness direction of the ribbon electric wire arranged from the base toward one side of the longitudinal direction, on the side of the bent-back portion of the ribbon electric wire relative to the base, and the inclined wall portion may gradually come closer to the opposing surface portion that faces the inclined wall portion as it approaches toward one side of the longitudinal direction.

[0025] According to this configuration, the electric wire routing structure can gradually shorten the length of the accommodating case in the thickness direction on one longitudinal side of the base portion toward the one longitudinal side. Furthermore, the radius of curvature of the bent-back portion of the ribbon-shaped electric wire becomes smaller as the holding member moves toward one side in the longitudinal direction.

[0026] Therefore, in the electric wire routing structure, the advancement and retreat of the holding member is not hindered by contact between the inclined wall portion and the ribbon-shaped electric wire. Therefore, the electric wire routing structure enables the storage case to be made smaller without impeding the smooth advancement and retreat of the holding member.

[0027] In another aspect of the present invention, the ribbon electric wire is accommodated in the accommodating case in a state in which the portion held by the base of the accommodating case and the drawn-out portion are routed from the base toward one side in the longitudinal direction and then bent back at a first bent-back portion, and the ribbon electric wire is routed from the first bent-back portion toward the other side in the longitudinal direction and then bent back at a second bent-back portion, and the accommodating case is provided with a case-side bend restricting portion near the base on the base side of the ribbon electric wire bent back at the first bent-back portion and restricting bending of the ribbon electric wire, and the holding member is provided with a holding member-side bend restricting portion on the holding member side of the ribbon electric wire bent back at the second bent-back portion and protruding toward the second bent-back portion of the ribbon electric wire and restricting bending of the ribbon electric wire.

[0028] According to this configuration, when the retaining member moves toward the second bent portion, the wire routing structure can prevent the radius of curvature of the first bent portion and the second bent portion from becoming extremely small by the case side bend limiting portion and the retaining member side bend limiting portion.

[0029] Alternatively, when the holding member moves toward the second bent-back portion, the electric wire routing structure can prevent the belt-shaped electric wire from bending from the vicinity of the base portion and the holding member. As a result, the electric wire routing structure can further reduce damage to the ribbon-like electric wires caused by the advancement and retreat of the slide sheet, and can stably ensure the conductivity of the ribbon-like electric wires.

[0030] As a further aspect of the present invention, the base may be disposed at a middle position in the longitudinal direction of the container case. According to this configuration, the electric wire routing structure can reduce the overall length of the ribbon-shaped electric wire compared to a case in which the base portion is provided near one end of the accommodating case in the longitudinal direction, thereby suppressing an increase in weight.

[0031] As another aspect of the present invention, the ribbon-shaped electric wire may be configured such that a plurality of the ribbon-shaped electric wires are stacked in the thickness direction, and a plurality of the holding members are arranged along the longitudinal direction, each holding at least one of the stacked ribbon-shaped electric wires.

[0032] The above-mentioned plurality of holding members refer to, for example, a plurality of holding members capable of advancing and retreating following one slide sheet, or a plurality of holding members capable of advancing and retreating following different slide sheets, respectively.

[0033] According to this configuration, the electric wire connection structure can connect multiple electric wires stored in one storage case to sheet-side electric wires arranged at different positions in the longitudinal direction by using multiple holding members that hold at least one electric wire strip.

[0034] For example, when two holding members that can move back and forth in accordance with one sliding seat are provided, the electric wire routing structure can connect multiple ribbon-shaped electric wires housed in one storage case to a seat side electric wire provided near the front leg of the sliding seat and a seat side electric wire provided near the rear leg of the sliding seat.

[0035] Alternatively, in the case of a first holding member that can move back and forth in accordance with one of two sliding sheets arranged on a fixed rail, and a second holding member that can move back and forth in accordance with the other sliding sheet, the wire routing structure can connect multiple ribbon-shaped electric wires housed in one storage case to sheet-side electric wires provided on one of the sliding sheets and sheet-side electric wires provided on the other sliding sheet.

[0036] As a result, the electric wire routing structure can supply electricity to the seat-side electric wires arranged at different positions in the longitudinal direction without providing multiple storage cases, and therefore the electric wire routing structure can prevent the limited space in the vehicle interior from being compressed by multiple storage cases.

[0037] As a further aspect of the present invention, the band-shaped electric wire may be arranged inside the casing such that a thickness direction of the band-shaped electric wire is substantially vertical. According to this configuration, even when a plurality of ribbon-shaped electric wires are stacked in the thickness direction, the electric wire routing structure can keep the length of the storage case constant in the horizontal direction.

[0038] As a result, even when multiple ribbon-shaped electric wires are housed in the housing case, the electric wire routing structure prevents the housing case from becoming larger in the horizontal direction, thereby preventing the freedom of layout inside the vehicle cabin from being compromised.

[0039] As a further aspect of the present invention, the belt-shaped electric wire may be arranged inside the storage case such that a thickness direction of the belt-shaped electric wire is substantially horizontal. According to this configuration, even when a plurality of ribbon-shaped electric wires are stacked in the thickness direction, the electric wire routing structure can keep the length of the storage case constant in the vertical direction.

[0040] As a result, even when multiple ribbon-shaped electric wires are housed in the housing case, the electric wire routing structure prevents the housing case from becoming larger in the vertical direction, thereby preventing the freedom of layout inside the vehicle cabin from being compromised. Effect of the Invention

[0041] According to the present invention, it is possible to provide an electric wire routing structure that can suppress damage to the belt-shaped electric wire caused by the advancement and retreat of the slide sheet. [Brief description of the drawings]

[0042] [Figure 1] FIG. 2 is an explanatory diagram illustrating an outline of a seat slide mechanism. [Diagram 2] FIG. 2 is an external perspective view showing the external appearance of the power supply device. [Diagram 3] FIG. 4 is a side view showing the appearance of the storage case. [Figure 4] A cross-sectional view taken along the line AA in FIG. [Diagram 5]FIG. 11 is an explanatory diagram illustrating the state of the cable routing body when the slide seat is moved forward. [Figure 6] FIG. 11 is an explanatory diagram illustrating the state of the cable routing body when the slide seat is moved rearward. [Figure 7] FIG. 13 is a side view showing an appearance of a power supply device according to another embodiment. [Figure 8] FIG. 13 is a side view showing an appearance of a power supply device according to another embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0043] An embodiment of the present invention will now be described with reference to the drawings. In this embodiment, a wire arrangement structure of a flexible flat cable that is arranged in a vehicle such as an automobile to supply power to a slide seat that is supported and slidable along the longitudinal direction of a fixed rail fixed to the vehicle body is described with reference to Figs. 1 to 6.

[0044] Note that Figure 1 is an explanatory diagram illustrating the outline of the seat slide mechanism 1, Figure 2 is an external oblique view of the power supply device 5, Figure 3 is a side view of the accommodating case 80, and Figure 4 is a cross-sectional view taken along the line AA in Figure 3. For clarity of illustration, the cover 82 of the storage case 80 is omitted in FIG. 3, and the position of the holding member 90 is indicated by a two-dot chain line in FIG.

[0045] 1 is the upper side of the power supply device 5, and the lower side of FIG. 1 is the lower side of the power supply device 5. The arrow X in the figure indicates the front-to-rear direction (hereinafter referred to as the front-to-rear direction X), which is the longitudinal direction of the fixed rail 2, and the arrow Y indicates the direction perpendicular to the front-to-rear direction X in a planar view (hereinafter referred to as the width direction Y).

[0046] 1 is defined as the front, and the direction from the left to the right in Fig. 1 is defined as the rear in the front-rear direction X. In addition, the state viewed from the width direction Y will be described as a side view.

[0047] First, as shown in FIG. 1, the seat slide mechanism 1 includes a pair of left and right fixed rails 2 extending in the front-rear direction X and fixed to a vehicle body, a pair of left and right sliders 3 sliding on the fixed rails 2, and a slide seat 4 supported by the left and right sliders 3 and movable in the front-rear direction X.

[0048] Furthermore, as shown in FIG. 1, the seat slide mechanism 1 includes a power supply device 5 that supplies electricity to the slide seat 4 that is supported so as to be able to slide back and forth along the longitudinal direction of the fixed rail, that is, along the front-rear direction X.

[0049] Specifically, as shown in FIG. 1, the pair of fixed rails 2 are arranged at a predetermined interval in the width direction Y, and are fixed to the body of the vehicle via support brackets (not shown).

[0050] Although detailed illustration is omitted, the cross-sectional shape of the fixed rail 2 in a longitudinal section along the width direction Y is formed into an open cross-sectional shape with an opening provided at the center in the width direction Y on the upper surface of a substantially rectangular closed cross-section. The opening of the open cross-sectional shape extending in the front-rear direction X is defined as a slit of the fixed rail 2.

[0051] The slider 3 is configured to be slidable along the front-rear direction X in a slit of the fixed rail 2 extending in the front-rear direction X. The sliding seat 4 is fixed to the upper part of the slider 3 and is arranged to be slidable in the front-rear direction X together with the slider 3. The sliding seat 4 has built-in electrical devices such as an electrically operated seat lifter mechanism and a reclining mechanism, or a seat heater.

[0052] As shown in FIG. 1, one end of the power supply device 5 is electrically connected to a vehicle body side wire harness 6, and the other end is electrically connected to a seat side wire harness 7, and is configured to be able to supply electricity to the sliding seat 4 while following the sliding movement of the slider 3.

[0053] In addition, the vehicle body side wire harness 6 and the seat side wire harness 7 are connected, for example, to a vehicle battery or a control device, and the seat side wire harness 7 is connected to electrical equipment provided in the sliding seat 4.

[0054] In detail, as shown in Figures 1 and 2, the power supply device 5 includes a first connector 10 that connects the vehicle body side wire harness 6 to the seat side wire harness 7, a first wire harness 20, a vehicle body side electric wire connection portion 30, a cable routing body 40, a seat side electric wire connection portion 50, a second wire harness 60, and a second connector 70.

[0055] Furthermore, as shown in Figures 1 and 3, the power supply device 5 includes a housing case 80 in which the vehicle body side wire connection portion 30 and the cable routing body 40 are housed, and a holding member 90 that holds the cable routing body 40 and is connected to the slider 3.

[0056] 1 to 3, one end of the first wire harness 20 is connected to the vehicle body side wire harness 6 via the first connector 10, and the other end is connected to the vehicle body side electric wire connection portion 30. This first wire harness 20 is configured by bundling a plurality of coated electric wires with a round cross section, each of which has a conductor coated with an insulating coating.

[0057] As shown in FIG. 3, the vehicle body side electric wire connection portion 30 electrically connects the first wire harness 20 and the cable routing body 40 inside the housing case 80. As shown in FIG. 3, the vehicle body side electric wire connection portion 30 is disposed in a substantially central lower portion in the front-rear direction X inside the storage case 80, and is fixed to the storage case 80 by an appropriate means.

[0058] Although detailed illustration is omitted, the vehicle body side wire connection portion 30 is composed of a plurality of connection terminals that connect the first wire harness 20 to the flexible flat cable 41 that constitutes the cable routing body 40, and a plurality of terminal holders that house and hold the connection terminals.

[0059] As shown in FIG. 2, one end of the cable routing body 40 is connected to the first wire harness 20 via a fixed vehicle body side wire connection portion 30, and the other end is connected to the second wire harness 60 via a seat side wire connection portion 50.

[0060] The cable arrangement body 40 is configured by stacking a plurality of flexible flat cables 41 in the thickness direction of the flexible flat cables 41 and bundling them with an adhesive tape (not shown). For example, as shown in FIG. 4, the cable arrangement body 40 is configured by laminating six flexible flat cables 41 in the thickness direction.

[0061] More specifically, the flexible flat cable 41 is formed by arranging flat conductors, each having a substantially rectangular cross section, extending in a predetermined direction, side by side and sandwiching the juxtaposed flat conductors between insulating laminate sheets. The flexible flat cable 41 is formed to a length that allows it to follow the advancement and retreat of the holding member 90 in the front-rear direction X.

[0062] As shown in Figs. 3 and 4, the cable arrangement body 40 is arranged in a U-shape inside the housing case 80 such that the thickness direction of the flexible flat cable 41 coincides with the up-down direction.

[0063] More specifically, as shown in FIG. 3 , the cable arrangement body 40 is arranged from the vehicle body side electric wire connection part 30 fixed to the approximately lower center in the fore-and-aft direction X through the lower part of the housing case 80 toward the front and approximately parallel to the fore-and-aft direction X, and is then bent back toward the upper rear.

[0064] Furthermore, the cable routing body 40 has a portion extending rearward from a bent-back portion 40a bent upward and rearward, passing through an upper portion of the storage case 80 and routed approximately parallel to the front-rear direction X.

[0065] The cable routing body 40 has a pull-out portion 40b formed by bending the end portion of the portion extending rearward from the bent-back portion 40a to one side in the width direction Y. The pull-out portion 40b passes through the inside of the retaining member 90 and is pulled out from the storage case 80 to the outside, and is then connected to the seat-side wire connection portion 50. The drawn-out portion 40b of the cable routing body 40 is routed inside the holding member 90 in a curved state, after being curved upward, toward the other side in the width direction Y.

[0066] 2, the seat-side electric wire connection portion 50 electrically connects the cable routing body 40 and the second wire harness 60. The seat-side electric wire connection portion 50 is fixed to an upper portion of a holding member 90 (described later) by an appropriate means, and is housed in an appropriate case (not shown). Similarly to the vehicle body side electric wire connecting portion 30 described above, the seat side electric wire connecting portion 50 is configured with a plurality of connecting terminals and a plurality of terminal holders that house and hold the plurality of connecting terminals.

[0067] 1 and 2, one end of the second wire harness 60 is connected to the seat-side electric wire connection portion 50, and the other end is connected to the seat-side wire harness 7 via a second connector 70. The second wire harness 60 is formed by bundling a plurality of coated electric wires, each having a round cross section, in which the conductor is coated with an insulating coating.

[0068] In addition, as shown in Figure 1, the storage case 80 is arranged adjacent to one side of the fixed rail 2 in the width direction Y so as to run along the fixed rail 2, and is fixed to the vehicle body via a support bracket that supports the fixed rail 2.

[0069] As shown in Figures 2 to 4, this storage case 80 is a hollow box-like shape having a thickness in the width direction Y, and is composed of a case main body 81 opening on one side in the width direction Y and a lid body 82 covering the opening of the case main body 81 assembled in the width direction Y.

[0070] More specifically, as shown in FIG. 2, the case body 81 is formed in a roughly box-like shape with one side open in the width direction Y, and includes a main surface portion 811 facing the lid body 82 in the width direction Y, and a front surface portion 812, a rear surface portion 813, a top surface portion 814, and a bottom surface portion 815 extending from an edge of the main surface portion 811 in the width direction Y.

[0071] Furthermore, as shown in FIG. 2, the case body 81 is provided with a base 816 that holds the cable routing body 40 near the vehicle body side wire connection portion 30, and a case side bending restriction portion 817 that restricts bending of the cable routing body 40 near the vehicle body side wire connection portion 30.

[0072] In detail, as shown in Figures 2 to 4, the main surface portion 811 is plate-shaped with a thickness in the width direction Y, and is formed into a shape having an upper edge that is approximately parallel to the front-rear direction X, and a lower edge that is uneven in the up-down direction.

[0073] Specifically, as shown in FIG. 3, main surface portion 811 is made up of a rectangular portion that is generally rectangular in side view and has a length in the front-to-rear direction X extending from the front end to the rear end of case body 81, and an inverted trapezoidal protruding portion that extends downward from the front lower end of the rectangular portion, and the lower edge is formed in an uneven shape.

[0074] As shown in FIGS. 2 and 3, the front surface portion 812 stands from the front end edge of the main surface portion 811 toward one side in the width direction Y, and forms the front surface of the storage case 80. As shown in FIGS. 2 and 3, the rear surface portion 813 stands from the rear end edge of the main surface portion 811 toward one side in the width direction Y, and forms the rear surface of the storage case 80.

[0075] 2 and 3, the top surface portion 814 stands from an upper end edge of the main surface portion 811 toward one side in the width direction Y, and forms the top surface of the storage case 80. As shown in Figs. 2 and 4, the top surface portion 814 has a cutout portion 81a formed by cutting out an edge on the lid body 82 side into a generally rectangular shape in plan view that is long in the front-rear direction X.

[0076] 2 and 3, the bottom surface portion 815 is erected toward one side in the width direction Y along the unevenness of the lower edge of the main surface portion 811, and forms the bottom surface of the storage case 80. As shown in Figs. 2 and 3, the bottom surface portion 815 is configured by connecting an inclined portion 815a, a central portion 815b, an upright portion 815c, and a rear portion 815d in this order from front to rear.

[0077] 3, the inclined portion 815a is formed in a shape that gradually slopes downward from the lower end of the front surface portion 812 toward the rear in a side view. In other words, the inclined portion 815a is formed in a shape that gradually approaches the upper surface portion 814 toward the front.

[0078] As shown in FIG. 3, the inclined portion 815a is formed in a range from approximately the center in the front-rear direction X to the front end at the front part of the case main body 81. As shown in FIG. 3, the central portion 815b extends rearward from the rear end of the inclined portion 815a substantially parallel to the upper surface portion 814, with a length in the front-rear direction X reaching the rear of the vehicle body side electric wire connection portion 30.

[0079] As shown in Fig. 3, the standing portion 815c extends from the rear end of the central portion 815b toward the rear and upward, with a length reaching approximately the center in the up-down direction between the upper surface portion 814 and the central portion 815b in a side view. As shown in Fig. 2, a through hole through which the first wire harness 20 is inserted is formed in the standing portion 815c.

[0080] 3, the rear portion 815d is formed in approximately the center in the up-down direction between the upper surface portion 814 and the central portion 815b in a side view. The rear portion 815d extends approximately parallel to the upper surface portion 814 from the upper end of the standing portion 815c to the rear end of the rear surface portion 813. For this reason, the rear portion 815d is disposed at a position closest to the upper surface portion 814 compared to other portions of the bottom surface portion 815.

[0081] 2 and 3, the base 816 for holding the cable routing body 40 is formed adjacent to the front of the vehicle body side electric wire connection portion 30 in the lower portion of the housing case 80. Although detailed illustration is omitted, the base 816 is formed so as to be able to hold the cable routing body 40 in the vicinity of the vehicle body side electric wire connection portion 30 therein.

[0082] In addition, as shown in Figures 2 and 3, the case side bending control portion 817 is integrally formed on the front portion of the base 816, and is configured to be able to control the bending of the cable routing body 40 so that the bent-back portion 40a does not fall below the desired radius of curvature.

[0083] Specifically, as shown in FIG. 3, the case side bending restriction portion 817 is configured with an approximately semicircular arc surface that protrudes in a direction toward the bent-back portion 40a of the cable routing body 40, i.e., forward, when viewed from the side.

[0084] As shown in FIG. 2, the lid body 82 has a main surface portion 821 that is approximately the same size and shape as the case body 81, a front surface portion 822 that stands up from the front edge of the main surface portion 821 toward the case body 81, and a rear surface portion 823 that stands up from the rear edge of the main surface portion 821 toward the case body 81.

[0085] Furthermore, as shown in Figures 2 and 4, the lid body 82 has an upper surface portion 824 extending from the upper edge of the main surface portion 821 toward the case body 81, and a bottom surface portion 825 extending from the lower edge of the main surface portion 821 toward the case body 81.

[0086] In addition, the front surface 822, rear surface 823, top surface 824, and bottom surface 825 of the lid body 82 are formed so as to overlap the outer surfaces of the front surface 812, rear surface 813, top surface 814, and bottom surface 815 of the case main body 81, respectively. Furthermore, as shown in FIGS. 2 and 4, the upper surface 824 of the lid 82 has a notch 82a formed by cutting out an edge on the case body 81 side in the front-rear direction X into a generally rectangular shape in plan view.

[0087] As shown in Figures 2 and 4, when the case body 81 and the lid body 82 are assembled, this cutout portion 82a, together with the cutout portion 81a of the case body 81, forms an opening 80a of the storage case 80 through which the retaining member 90 described later moves forward and backward. As shown in Figs. 1 and 4, the opening 80a is open upward and has a length in the width direction Y that is shorter than the slits of the fixed rail 2 and a main body 91 of a holding member 90, which will be described later.

[0088] In addition, the holding member 90 holds the pulled-out portion 40b of the cable routing body 40 pulled out from the storage case 80, and is supported by the storage case 80 in a state in which it can move back and forth in the forward and backward direction X in response to the movement of the slide sheet 4.

[0089] As shown in Figures 2 and 3, this retaining member 90 is composed of a main body portion 91 that is approximately rectangular in side view and extends in the vertical direction so as to penetrate the opening 80a of the storage case 80, a connecting portion 92 that extends in the width direction Y from the upper end of the main body portion 91, and a retaining member side bending control portion 93 provided at the lower end of the main body portion 91.

[0090] More specifically, as shown in FIGS. 1 and 2, the main body 91 is generally rectangular in side view and is long in the up-down direction, and is formed with a length in the width direction Y that is shorter than the slit of the fixed rail 2. 2 and 3, the main body 91 is configured to hold the drawn-out portion 40b of the cable routing body 40 folded back to one side in the width direction Y inside the housing case 80. Furthermore, the main body 91 is formed so that the drawn-out portion 40b of the cable routing body 40 can be led out from the upper end toward the other side in the width direction Y.

[0091] 1 and 2, the connecting portion 92 extends from the upper end of the main body portion 91 to the other side in the width direction Y, and is connected to the front portion of the slider 3. Furthermore, as shown in FIG. 2, the sheet-side electric wire connecting portion 50 is placed and fixed to the connecting portion 92 by an appropriate means.

[0092] As shown in Figures 2 and 3, the holding member side bending regulating portion 93 is integrally formed at the lower end of the main body portion 91 and is configured to be able to regulate the bending of the cable routing body 40 so that the bent-back portion 40a does not fall below the desired radius of curvature.

[0093] Specifically, as shown in Figures 2 and 3, the retaining member side bending control portion 93 is formed in a shape having a substantially semicircular arc surface on its front surface when viewed from the side that protrudes in a direction toward the bent-back portion 40a of the cable routing body 40, i.e., forward. The arcuate surface of the holding member side bending restricting portion 93 is formed in a substantially semicircular shape having substantially the same diameter as the arcuate surface of the case side bending restricting portion 817 .

[0094] Next, in the power supply device 5 having the above-mentioned configuration, a state in which the sliding sheet 4 is moved to the most forward position and a state in which the sliding sheet 4 is moved to the most rearward position will be described with reference to FIGS. Note that Figure 5 shows an explanatory diagram illustrating the state of the cable routing body 40 when the sliding seat 4 has moved forward, and Figure 6 shows an explanatory diagram illustrating the state of the cable routing body 40 when the sliding seat 4 has moved rearward.

[0095] First, when the sliding sheet 4 starts to move forward, the holding member 90 of the power supply device 5 moves forward along the opening 80a of the accommodating case 80, following the forward movement of the sliding sheet 4, as shown in FIG. 5.

[0096] At this time, the bent portion 40 a of the cable routing body 40 deforms so that the radius of curvature gradually decreases as the holding member 90 moves forward, and starts to come into contact with the holding member side bending restriction portion 93 of the holding member 90 . As shown in FIG. 5, the bent-back portion 40a of the cable routing body 40 is deformed into a shape that follows the arc surface of the holding member side bending restricting portion 93 when the slide sheet 4 is moved to the most forward position.

[0097] That is, the bent-back portion 40a of the cable routing body 40 is restricted from bending by the holding member side bending restricting portion 93, and has the smallest radius of curvature. At this time, the cable routing body 40 is in a routing state in which the portion between the lower end of the bent-back portion 40a and the base portion 816 extends in a substantially straight line.

[0098] On the other hand, when the sliding sheet 4 starts to move rearward, the holding member 90 of the power supply device 5 moves rearward along the opening 80a of the accommodating case 80, following the rearward movement of the sliding sheet 4, as shown in FIG. 6.

[0099] At this time, the bent portion 40 a of the cable routing body 40 is deformed so that the radius of curvature gradually decreases as the holding member 90 moves rearward, and starts to come into contact with the case side bend restricting portion 817 of the storage case 80 . As shown in FIG. 6, the bent-back portion 40a of the cable routing body 40 is deformed into a shape that follows the arc surface of the case-side bending restricting portion 817 when the slide sheet 4 is moved all the way to the rear.

[0100] That is, the bent-back portion 40a of the cable routing body 40 is restricted from bending by the case-side bending restricting portion 817, and has the smallest radius of curvature. At this time, the cable routing body 40 is in a routing state in which the portion between the upper end of the bent-back portion 40a and the holding member 90 extends in a substantially straight line.

[0101] As described above, the electric wire routing structure of this embodiment routes the cable routing body 40, one end of which is electrically connected to the vehicle body side wire harness 6 and the other end of which is electrically connected to the seat side wire harness 7, to supply electricity to the sliding seat 4 that is supported so as to be able to slide back and forth along the fore-and-aft direction X of the fixed rail 2 fixed to the vehicle body.

[0102] This electric wire routing structure includes a storage case 80 arranged along a fixed rail 2 and storing a cable routing body 40 along the front-to-rear direction X, and a holding member 90 that holds the pull-out portion 40b of the cable routing body 40 pulled out from the storage case 80. Furthermore, the holding member 90 is configured to be capable of moving back and forth in the front-rear direction X within the accommodation case 80 in accordance with the movement of the sliding sheet 4 back and forth.

[0103] Furthermore, the storage case 80 is provided with a base 816 that holds one end of the cable routing body 40, and an opening 80a that opens and extends in the front-rear direction X and through which the holding member 90 moves forward and backward. The cable routing body 40 is formed to have a length that can follow the advancement and retreat of the holding member 90.

[0104] According to this, the electric wire routing structure can suppress damage to the cable routing body 40 caused by the advancement and retreat of the slide sheet 4. Specifically, since the retaining member 90 is configured to be able to move forward and backward through the opening 80a of the storage case 80 rather than through a slit in the fixed rail 2, the wire routing structure can be formed so that the retaining member 90 is narrower than the slider 3 supporting the slide sheet 4.

[0105] Therefore, the electric wire routing structure can form the opening 80a of the accommodating case 80 with a size narrower than the slit of the fixed rail 2. As a result, the electric wire routing structure can suppress the intrusion of foreign matter into the inside of the accommodating case 80 compared to the fixed rail 2.

[0106] Furthermore, since the cable routing body 40 housed in the housing case 80 is held by the base 816 of the housing case 80 and the holding member 90, the electric wire routing structure does not move back and forth between the fixed rail 2 and the housing case 80 in association with the advancement and retreat of the slide sheet 4. Therefore, the electric wire routing structure can prevent damage to the cable routing body 40 due to sliding with the fixed rail 2.

[0107] Therefore, the electric wire routing structure can suppress damage to the cable routing body 40 caused by the advancement and retreat of the slide sheet 4. In addition, since damage to the cable routing body 40 can be suppressed, the electric wire routing structure can eliminate the need for, for example, a protective tube for protecting the cable routing body 40, thereby reducing the number of parts.

[0108] The opening 80a of the storage case 80 opens toward the top of the storage case 80. According to this configuration, even if the holding member 90 tilts in the front-rear direction X as the slide sheet 4 advances and retreats, the electric wire routing structure prevents the holding member 90 from contacting the edge of the opening 80a.

[0109] As a result, the electric wire routing structure can smoothly slide the holding member 90 in the front-rear direction X in accordance with the advancement and retreat of the slide sheet 4. Therefore, the electric wire routing structure can prevent the cable routing body 40 from being unintentionally bent due to, for example, the smooth sliding movement of the holding member 90 being hindered. Therefore, the electric wire routing structure can better prevent damage to the cable routing body 40 caused by the advancement and retreat of the slide sheet 4.

[0110] Furthermore, within the storage case 80, the cable routing body 40 is stored in a U-shape with the portion between the portion held by the base 816 of the storage case 80 and the drawn-out portion 40b bent back at the bent-back portion 40a.

[0111] Furthermore, the accommodating case 80 has a case side bending regulating portion 817 on the inside of the U-shape near the base 816, which protrudes toward the bent portion 40a of the cable routing body 40 and regulates the bending of the cable routing body 40.

[0112] In addition, the retaining member 90 is provided with a retaining member side bending regulating portion 93 that protrudes toward the bent portion 40a of the cable routing body 40 on the inside of the U-shape of the cable routing body 40 and regulates the bending of the cable routing body 40.

[0113] According to this configuration, the electric wire routing structure can further prevent damage to the cable routing body 40 caused by the advancement and retreat of the slide sheet 4, and can stably ensure the conductivity of the cable routing body 40.

[0114] Specifically, since the cable routing body 40 does not move back and forth between the fixed rail 2 and the storage case 80, the length of the portion of the cable routing body 40 that is stored in the storage case 80 does not change as the slide sheet 4 moves back and forth.

[0115] Therefore, inside the housing case 80, the bent portion 40a of the cable routing body 40 is deformed so that the radius of curvature gradually changes as the holding member 90 advances and retreats. At this time, in the electric wire routing structure, the holding member side bending restricting portion 93 and the case side bending restricting portion 817 can restrict the change in the radius of curvature of the bent-back portion 40a.

[0116] For example, when the retaining member 90 moves toward the bent portion 40a, the retaining member side bending restriction portion 93 of the electric wire routing structure can prevent the radius of curvature of the bent portion 40a from becoming extremely small, or the cable routing body 40 from bending starting from the vicinity of the retaining member 90.

[0117] On the other hand, when the retaining member 90 moves to the side opposite the bent-back portion 40a, the case side bending control portion 817 of the electric wire routing structure can prevent the radius of curvature of the bent-back portion 40a from becoming extremely small, or the cable routing body 40 from bending starting from the vicinity of the base portion 816. As a result, the electric wire routing structure can further reduce damage to the cable routing body 40 caused by the advancement and retreat of the slide sheet 4, and can ensure stable conductivity of the cable routing body 40.

[0118] Further, the housing case 80 is provided with an inclined portion 815a that faces the cable arrangement body 40 arranged forward from the base portion 816 in the thickness direction of the cable arrangement body 40, on the bent-back portion 40a side of the base portion 816. The inclined portion 815a is gradually closer to the upper surface portion 814 as it moves forward.

[0119] According to this configuration, the electric wire routing structure can gradually shorten the length of the accommodating case 80 in the thickness direction forward of the base portion 816 as it moves forward. Furthermore, the radius of curvature of the bent-back portion 40a of the cable routing body 40 becomes smaller as the holding member 90 approaches the front.

[0120] Therefore, in the electric wire routing structure, the advancement and retreat of the holding member 90 is not hindered by contact between the inclined portion 815a and the cable routing body 40. Therefore, the electric wire routing structure allows the storage case 80 to be made smaller without impeding the smooth advancement and retreat of the holding member 90.

[0121] Further, the storage case 80 is provided with an upper surface portion 814 and a bottom surface portion 815 that face each other in the thickness direction of the cable arrangement body 40 that is arranged along the front-rear direction X, behind the base portion 816. Of the upper surface portion 814 and the bottom surface portion 815, the bottom surface portion 815 is closer to the upper surface portion 814 than other portions.

[0122] According to this configuration, the electric wire routing structure can reduce the size of the accommodating case 80 in the thickness direction behind the base 816. Therefore, the electric wire routing structure can suppress damage to the cable routing body 40 and further reduce the size of the accommodating case 80.

[0123] The base 816 is disposed at a central position in the front-rear direction X of the container case 80 . According to this configuration, the electric wire routing structure can shorten the overall length of the cable routing body 40 compared to a case in which the base 816 is provided near one end of the housing case 80 in the front-rear direction X, thereby suppressing an increase in weight.

[0124] Moreover, the cable routing body 40 is disposed inside the storage case 80 such that the thickness direction is substantially vertical (up-down direction). According to this configuration, even when a plurality of flexible flat cables 41 are stacked in the thickness direction, the electric wire routing structure can keep the length of the accommodating case 80 constant in the horizontal direction (width direction Y).

[0125] As a result, even when multiple flexible flat cables 41 are housed in the housing case 80, the wire routing structure prevents the housing case 80 from becoming larger in the horizontal direction, thereby preventing the freedom of layout within the vehicle cabin from being compromised.

[0126] In the configuration of the present invention and the correspondence with the above-mentioned embodiment, The vehicle body side electric wire of the present invention corresponds to the vehicle body side wire harness 6 of the embodiment, Similarly, The seat side wire corresponds to the seat side wire harness 7. The ribbon wire corresponds to the flexible flat cable 41. The longitudinal direction corresponds to the front-rear direction X, The inclined wall portion corresponds to the inclined portion 815a, The facing surface portion corresponds to the upper surface portion 814, The pair of side walls correspond to the top surface 814 and the bottom surface 815. The side wall portion on the base side corresponds to the bottom surface portion 815, The side wall portion on the holding member side corresponds to the upper surface portion 814, The present invention is not limited to the configurations of the above-described embodiments, and many other embodiments can be obtained.

[0127] For example, in the above-described embodiment, the power supply device 5 is disposed adjacent to one of the fixed rails 2, but this is not limiting, and the power supply device 5 may be disposed adjacent to the other fixed rail 2. Alternatively, the power supply device 5 may be disposed on each of the left and right fixed rails 2.

[0128] Furthermore, the cable routing body 40 is disposed inside the housing case 80 having a thickness in the width direction Y so that the thickness direction of the flexible flat cable 41 is the up-down direction, but this is not limiting. For example, the cable routing body 40 may be arranged inside a storage case having a thickness in the vertical direction so that the thickness direction of the flexible flat cable 41 is the width direction Y. In this case, an opening through which the holding member slides is formed on the top or side surface of the storage case.

[0129] According to this, the cable routing body 40 is arranged inside the storage case so that the thickness direction of the flexible flat cable 41 is the width direction Y. Therefore, the wire routing structure can maintain the length of the storage case in the vertical direction (up and down direction) constant even when, for example, multiple flexible flat cables 41 are stacked in the thickness direction.

[0130] As a result, even when multiple flexible flat cables 41 are housed in the housing case, the electric wire routing structure prevents the housing case from becoming larger in the vertical direction, thereby preventing the freedom of layout within the vehicle cabin from being compromised.

[0131] In addition, the storage case 80 has an opening 80a that opens upward, but this is not limited to this, and the storage case may have an opening that opens in a substantially horizontal direction, i.e., toward one side of the width direction Y.

[0132] This makes it possible for the electric wire routing structure to prevent foreign objects from entering the inside of the storage case from above, compared to an opening that opens upward, for example. Therefore, the electric wire routing structure can prevent damage to the cable routing body 40 due to sliding with foreign objects inside the storage case.

[0133] In addition, the first wire harness 20 and the second wire harness 60 are made up of a plurality of insulated electric wires, but this is not limited to this, and the first wire harness and / or the second wire harness may be made up of a flexible flat cable or the like as long as it can be connected to the cable routing body 40 via a connection terminal.

[0134] In addition, the cable arrangement body 40 having multiple stacked flexible flat cables 41 is arranged inside the accommodating case 80, but this is not limited to this, and the configuration may also be such that at least one flexible flat cable 41 is arranged inside the accommodating case 80.

[0135] Further, although the flexible flat cable 41 has been used in the description, the present invention is not limited to this, and a ribbon cable (also called a flat cable) in which coated electric wires with a round cross section are arranged side by side may be used as long as the electric wire is in a belt shape. Further, in the above embodiment, the holding member 90 is connected to the slider 3, but the present invention is not limited to this. The holding member may be connected to the lower surface of the sliding sheet 4.

[0136] In addition, although the cable routing body 40 is configured to be arranged inside the storage case 80 in a U-shaped state, this is not limited to this, and the cable routing body 40 may also be configured to be arranged inside the storage case 80 in a Z-shaped state.

[0137] Specifically, as shown in FIG. 7 which shows a side view of a power supply device in another embodiment, inside the housing case 80, the cable arrangement body 40 is arranged from the base 816 through the lower part of the housing case 80 toward the front and rear substantially parallel to the fore-and-aft direction X, and then bent back toward the upper rear.

[0138] Furthermore, the portion of the cable arrangement body 40 that extends rearward from the first bent portion 40c, which is bent upward and rearward, is arranged approximately parallel to the front-to-rear direction X through approximately the center in the up-down direction of the storage case 80, and then is bent upward and forward.

[0139] The cable routing body 40 may be configured such that a portion extending forward from the second bent-back portion 40d bent upward and forward is held by the holding member 90.

[0140] In this case, as in the above-described embodiment, the case side bending regulating portion 817 is formed by an arc surface protruding toward the first bent portion 40c of the cable routing body 40 on the base 816 side of the cable routing body 40 bent back at the first bent portion 40c. On the other hand, the holding member side bending control portion 94 is formed on the holding member 90 side of the cable routing body 40 bent back at the second bend portion 40d, so as to have a shape having an approximately semicircular arc surface on its rear surface that protrudes in the direction toward the second bend portion 40d of the cable routing body 40, i.e., toward the rear.

[0141] According to this, when the retaining member 90 moves rearward, the wire routing structure can prevent the radius of curvature of the first bent portion 40c and the second bent portion 40d from becoming extremely small by the case side bend limiting portion 817 and the retaining member side bend limiting portion 93.

[0142] Alternatively, when the holding member 90 moves rearward, the electric wire routing structure can prevent the cable routing body 40 from bending from the base 816 and the vicinity of the holding member 90 as starting points. As a result, the electric wire routing structure can further reduce damage to the cable routing body 40 caused by the advancement and retreat of the slide sheet 4, and can ensure stable conductivity of the cable routing body 40.

[0143] Further, although a single holding member 90 is configured to slide through the opening 80a of the storage case 80, the present invention is not limited to this, and a configuration in which a plurality of holding members 90 slide through the opening 80a of the storage case 80 may also be used.

[0144] Specifically, as shown in FIG. 8 which shows a side view of a power supply device in another embodiment, a first holding member 90a and a second holding member 90b spaced apart at a predetermined interval in the front-rear direction X may be supported so as to be movable forward and backward through an opening 80a of a housing case 80 along the front-rear direction X.

[0145] In this case, the first holding member 90a holds the first cable arrangement body 42, one end of which is held by the base 816. On the other hand, the second holding member 90b holds the second cable arrangement body 43, one end of which is held by the base 816.

[0146] As in the embodiment described above, the first cable routing body 42 is routed from the base 816 through the lower part of the storage case 80 toward the front and rear generally parallel to the fore-and-aft direction X, and then bent back toward the upper rear.

[0147] On the other hand, the second cable routing body 43 is routed from the base 816 through the lower part of the storage case 80 toward the front and rear approximately parallel to the fore-and-aft direction X, and then bent back toward the upper rear at a position rearward of the first cable routing body 42.

[0148] According to this, the electric wire connection structure can connect multiple flexible flat cables 41 housed in one housing case 80 to seat-side wire harnesses arranged at different positions in the fore-and-aft direction X, using the first holding member 90a and the second holding member 90b that hold at least one flexible flat cable 41.

[0149] For example, in the case of a first holding member 90a and a second holding member 90b that can move back and forth in accordance with a single sliding seat, the wire routing structure can connect multiple flexible flat cables 41 housed in a single housing case 80 to a seat side wire harness provided near the front leg of the sliding seat and a seat side wire harness provided near the rear leg of the sliding seat.

[0150] Alternatively, in the case of a first holding member 90a that can move back and forth in accordance with one of two sliding seats arranged on a fixed rail 2, and a second holding member 90b that can move back and forth in accordance with the other sliding seat, the wire routing structure can connect multiple flexible flat cables 41 housed in one housing case 80 to a seat side wire harness provided on one of the sliding seats and a seat side wire harness provided on the other sliding seat.

[0151] As a result, the electric wire routing structure can supply electricity to the seat-side wire harnesses arranged at different positions in the front-rear direction X without providing multiple storage cases. Therefore, the electric wire routing structure can prevent the limited space in the vehicle interior from being compressed by multiple storage cases. [Explanation of symbols]

[0152] 2…Fixed rail 4. Slide sheet 6…Vehicle body side wire harness 7…Seat side wire harness 40a…Bent part 40b…Drawer part 40c…First bend 40d…Second bend 41...Flexible flat cable 80…Storage case 80a…Opening 90...Retaining member 90a...first holding member 90b...second holding member 93, 94...Bending restriction portion on holding member side 814...Top part 815…Bottom part 815a…slanted part 816...Base 817…Bending restriction part on case side X…Anteroposterior direction

Claims

1. A wire arrangement structure for supplying electricity to a sliding seat that is supported so as to be able to slide back and forth along a longitudinal direction of a fixed rail fixed to a vehicle body, by arranging a strip-shaped electric wire, one end of which is electrically connected to a vehicle body-side electric wire and the other end of which is electrically connected to a seat-side electric wire, a housing case disposed along the fixed rail and housing the ribbon-shaped electric wire along the longitudinal direction; a holding member for holding a drawn-out portion of the belt-shaped electric wire drawn out from the storage case, The holding member is The slide sheet is configured to be movable in the longitudinal direction within the storage case in accordance with the movement of the slide sheet, The storage case includes: a base portion for holding the one end portion of the ribbon-shaped electric wire; an opening extending in the longitudinal direction and through which the holding member advances and retreats is provided; The ribbon-shaped electric wire is The length is such that the holding member can move forward and backward. In the storage case, The ribbon-shaped electric wire is The portion of the storage case held by the base and the pull-out portion are accommodated in a U-shape bent at a bent-back portion, The storage case includes: a case-side bending restriction portion is provided on an inner side of the U-shape near the base portion, the case-side bending restriction portion protruding toward the bent-back portion of the electric wire strip and restricting bending of the electric wire strip, The holding member is A holding member-side bending restriction portion is provided on the inside of the U-shape of the belt-shaped electric wire, protruding toward the bent-back portion of the belt-shaped electric wire and restricting bending of the belt-shaped electric wire. Wire routing structure.

2. The storage case includes: a tilted wall portion is provided on the bent-back portion side of the strip electric wire relative to the base portion, the tilted wall portion being opposed to the strip electric wire arranged from the base portion toward one side in the longitudinal direction in a thickness direction of the strip electric wire, The inclined wall portion is The inclined wall portion is disposed in a direction toward the inclined wall portion. The electric wire routing structure according to claim 1 .

3. A direction opposite to the longitudinal direction from the base portion to the bent-back portion is defined as the other side of the longitudinal direction, The storage case includes: a pair of side wall portions opposed to each other in a thickness direction of the strip-shaped electric wire arranged along the longitudinal direction are provided on the other side of the base portion in the longitudinal direction, Of the pair of side walls, the side wall on the base side is Closer to the side wall portion on the holding member side than other portions The electric wire routing structure according to claim 1 or 2.

4. A wire arrangement structure for supplying electricity to a sliding seat that is supported so as to be able to slide back and forth along a longitudinal direction of a fixed rail fixed to a vehicle body, by arranging a strip-shaped electric wire, one end of which is electrically connected to a vehicle body-side electric wire and the other end of which is electrically connected to a seat-side electric wire, a housing case disposed along the fixed rail and housing the ribbon-shaped electric wire along the longitudinal direction; a holding member for holding a drawn-out portion of the belt-shaped electric wire drawn out from the storage case, The holding member is The slide sheet is configured to be movable in the longitudinal direction within the storage case in accordance with the movement of the slide sheet, The storage case includes: a base portion for holding the one end portion of the ribbon-shaped electric wire; an opening extending in the longitudinal direction and through which the holding member advances and retreats is provided; The ribbon-shaped electric wire is The length is such that the holding member can move forward and backward. In the storage case, The ribbon-shaped electric wire is a wire between a portion of the storage case held by the base and the pull-out portion is arranged from the base toward one side in the longitudinal direction, and then bent back at a first bent-back portion; and a wire is arranged from the first bent-back portion toward the other side in the longitudinal direction, and then bent back at a second bent-back portion; and the storage case is stored in this state; The storage case includes: a case-side bending restricting portion that protrudes toward the first bent-back portion of the strip electric wire and restricts bending of the strip electric wire is provided in the vicinity of the base portion on the side of the base portion of the strip electric wire bent back at the first bent-back portion, The holding member is A holding member-side bending restriction portion is provided on the holding member side of the strip-shaped electric wire bent back at the second bent back portion, the holding member-side bending restriction portion protruding toward the second bent back portion of the strip-shaped electric wire and restricting bending of the strip-shaped electric wire. Wire routing structure.

5. The opening of the storage case is The container case has an opening facing upward. The electric wire routing structure according to any one of claims 1 to 4.

6. The opening of the storage case is The container case has an opening toward one side in a substantially horizontal direction. The electric wire routing structure according to any one of claims 1 to 4.

7. The base portion is disposed at a middle position in the longitudinal direction of the container case. The electric wire routing structure according to any one of claims 1 to 6.

8. The belt-shaped electric wire is formed by stacking a plurality of sheets in the thickness direction, The holding member is A plurality of the electric wires are arranged along the longitudinal direction, and each of the electric wires holds at least one of the stacked electric wires. The electric wire routing structure according to any one of claims 1 to 7.

9. The ribbon-shaped electric wire is A thickness direction of the storage case is substantially vertical. The electric wire routing structure according to any one of claims 1 to 8.

10. The ribbon-shaped electric wire is In the inside of the storage case, a thickness direction is arranged substantially horizontally. The electric wire routing structure according to any one of claims 1 to 8.

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