Wire cable structure

Abstract

To provide wire routing structure which can prevent defects of a vehicle body side wire connection part 30 and a seat side wire connection part 50 by tensile force.SOLUTION: Wire routing structure supplies electricity to a slide seat 4 retractably and slidably supported in a cross direction X of a fixed rail 2 fixed to a vehicle body by routing a cable routing body 40 one end of which is electrically connected with a vehicle body side wire harness 6, and the other end of which is electrically connected with a seat side wire harness 7. At least one end of the cable routing body 40 is connected with a first wire harness 20 at a fixed vehicle body side wire connection part 30, and bending parts (a first bending part 815 and a second bending part 816) are provided, which bend the cable routing body 40 near the vehicle body side wire connection part 30 in a bending direction crossing an action direction of tensile force acting on the cable routing body 40.SELECTED DRAWING: Figure 7

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 Nowadays, vehicles such as automobiles are equipped with a power supply device that supplies electricity to a sliding seat from the vehicle body due to, for example, the motorization of the sliding seat or the attachment of electrical components to the sliding seat.

[0003] For example, Patent Document 1 discloses a vehicle seat including a slide rail fixed to the vehicle body, a slider that supports the slide seat and slides on the slide rail, and a power supply device that supplies electricity to the slide seat.

[0004] In this patent document 1, a ribbon-shaped electric wire connecting a first connector fixed to a slider and a second connector fixed to the end of a slide rail is housed inside the slide rail in an inverted, approximately U-shaped state.

[0005] In the electric wire arrangement structure as disclosed in Patent Document 1, the ribbon electric wire is pulled in the longitudinal direction of the slide rail as the slide sheet advances and retreats. Furthermore, in Patent Document 1, the ribbon electric wire arranged substantially parallel to the longitudinal direction is connected to the second connector, so that a tensile force in the longitudinal direction is likely to directly act on the electric wire connection portion, which is the connection point between the ribbon electric wire and the second connector.

[0006] For this reason, in Patent Document 1, a tensile force in the longitudinal direction acts directly on the electric wire connection portion, which is the connection point between the ribbon-shaped electric wire and the second connector, and this may cause an unintended malfunction at the electric wire connection portion. [Prior art documents] [Patent documents]

[0007] [Patent Document 1] JP 2019-6274 A Summary of the Invention [Problem to be solved by the invention]

[0008] In view of the above-mentioned problems, an object of the present invention is to provide an electric wire routing structure capable of preventing defects in an electric wire connection portion due to a pulling force. [Means for solving the problem]

[0009] The present invention relates to an electric wire arrangement structure for supplying electricity to a sliding seat that is supported so as to be able to slide back and forth along the longitudinal direction of a fixed rail that is fixed to a vehicle body, by arranging an electric wire whose one end is electrically connected to a vehicle body side electric wire and whose other end is electrically connected to a seat side electric wire, wherein at least one end of the electric wire is connected to another electric wire at a fixed electric wire connection part, and a bending part is provided for bending the electric wire in the vicinity of the electric wire connection part in a bending direction that intersects with the acting direction of a tensile force acting on the electric wire. The bent portions are provided at a predetermined interval, and adjacent bent portions are formed such that the bent directions of the electric wire are opposite to each other. It is characterized by:

[0010] The electric wire may be a ribbon-shaped electric wire in which a plurality of conductors are arranged in parallel, or an electric wire having a round cross section in which a plurality of conductors are bundled together. The electric wire connection portion connects, for example, a belt-shaped electric wire and an electric wire having a round cross section, or connects belt-shaped electric wires together, or connects electric wires having a round cross section together.

[0011] According to this invention, the electric wire routing structure can prevent malfunctions of the electric wire connection portion due to pulling force. Specifically, by providing a bending portion that bends the electric wire near the electric wire connection portion, the electric wire routing structure can receive the tensile force acting on the electric wire at the bending portion and reduce the tensile force applied to the electric wire connection portion, thereby preventing malfunction of the electric wire connection portion due to the tensile force.

[0012] In addition, when a pressing force is applied to the electric wires due to the advancement and retreat of the slide sheet, the portion of the electric wire bent at the bending portion can absorb the pressing force, and therefore the electric wire routing structure can reduce the pressing force acting on the electric wires near the electric wire connection portion and prevent the electric wires near the electric wire connection portion from being deformed, for example, by buckling.

[0013] Also, The bent portions are provided at a plurality of intervals, and adjacent bent portions are formed such that the bent directions of the electric wire are opposite to each other. is. According to this configuration, since adjacent bent portions are formed so that the wires are bent in opposite directions, the wire routing structure can bend the wires into, for example, a substantially crank-like or bellows-like shape.

[0014] Therefore, the electric wire routing structure can reliably receive the tensile force acting on the electric wires at the multiple bent portions, and can further prevent the tensile force in the longitudinal direction from being directly applied to the electric wire connection portion. This allows the electric wire routing structure to further reduce the pulling force applied to the electric wire connection portion.

[0015] As a further aspect of the present invention, the electric wire may be a strip-shaped electric wire having a conductor sandwiched between insulating sheets, and the bent portion may be configured to bend the strip-shaped electric wire in a thickness direction. According to this configuration, the electric wire routing structure can reliably bend the ribbon electric wire along the bent portion and can ensure a contact area between the bent portion and the ribbon electric wire, so that the electric wire routing structure can reliably receive the tensile force acting on the electric wire at the bent portion and reliably reduce the tensile force acting on the electric wire connection portion.

[0016] As another aspect of the present invention, the separate electric wire may be a coated electric wire having a round cross section in which a conductor is coated with an insulating coating, and the electric wire connection portion may be configured such that the conductor of the ribbon-shaped electric wire and the conductor of the coated electric wire are connected via a connection terminal.

[0017] According to this configuration, the electric wire routing structure can easily connect a ribbon electric wire and a covered electric wire of different wire types via the connection terminal, and can improve the connection strength compared to when the ribbon electric wire and the covered electric wire are directly connected.

[0018] Thus, the electric wire routing structure can prevent the release of the connection between the ribbon electric wire and the insulated electric wire of different wire types through cooperation of the bent portion and the connection terminal, and therefore can ensure a stable connection state of the electric wire connection portion even when the ribbon electric wire and the insulated electric wire of different wire types are connected.

[0019] As a further aspect of the present invention, a tubular protective tube may be provided to cover the ribbon-shaped electric wire. According to this configuration, the electric wire routing structure can prevent damage to the belt-shaped electric wire due to sliding against the bent portion, and therefore the electric wire routing structure can ensure stable conductivity of the belt-shaped electric wire.

[0020] As a further aspect of the present invention, the bent portion may restrict bending of the ribbon-shaped electric wire with a bending radius equal to or larger than a thickness of the ribbon-shaped electric wire. According to this configuration, the electric wire routing structure can prevent the belt-shaped electric wire from being bent so as to bend, so that stable conductivity of the belt-shaped electric wire can be reliably ensured. Furthermore, for example, by providing a curved surface at the bent portion to regulate the bending radius of the ribbon-shaped electric wire, the electric wire routing structure can further prevent the ribbon-shaped electric wire from being damaged due to strong contact with the bent portion.

[0021] As a further aspect of the present invention, the bent portion may be provided with a pair of walls for sandwiching the bent ribbon-shaped electric wire therebetween. According to this configuration, the electric wire routing structure can reliably bend the ribbon-shaped electric wire and can restrict the movement of the ribbon-shaped electric wire by the pair of walls, so that the electric wire routing structure can more reliably reduce the pulling force applied to the electric wire connection portion.

[0022] As a further aspect of the present invention, at least one of the pair of walls may be provided with a rib that stands toward the other wall and extends in a width direction of the band-shaped electric wire.

[0023] According to this configuration, the electric wire routing structure can reliably restrict the movement of the ribbon-shaped electric wire near the electric wire connection portion by the pair of walls, and therefore, when a tensile force acts on the ribbon-shaped electric wire, the electric wire routing structure can further reliably reduce the tensile force applied to the electric wire connection portion.

[0024] In another aspect of the present invention, a bellows-shaped protective tube is provided that covers the ribbon electric wire, is fixed to the ribbon electric wire, and has continuous projections and recesses along the longitudinal direction of the ribbon electric wire, and the rib and a recess of the protective tube may engage with each other.

[0025] According to this configuration, the electric wire routing structure can more reliably restrict the movement of the electric wire ribbon near the electric wire connection portion by the engagement between the recess of the protective tube fixed to the electric wire ribbon and the rib, and therefore, when a tensile force acts on the electric wire ribbon, the electric wire routing structure can more reliably reduce the tensile force applied to the electric wire connection portion.

[0026] In another aspect of the present invention, the vehicle body side end of the ribbon-shaped electric wire is connected to the vehicle body side electric wire via a vehicle body side electric wire connection portion, and the seat side end of the ribbon-shaped electric wire is connected to the seat side electric wire via a seat side electric wire connection portion, and a storage case may be provided outside the fixed rail to accommodate the vehicle body side electric wire connection portion and to have a storage portion that can pull out and store the ribbon-shaped electric wire as the sliding seat advances and retreats.

[0027] According to this configuration, since the electric wire connection portion and the ribbon electric wire are accommodated in the accommodation portion of the accommodation case, the electric wire routing structure can prevent the electric wire connection portion and the ribbon electric wire from being damaged due to contact with a foreign object or due to the application of an unintended external force to the electric wire connection portion and the ribbon electric wire. Therefore, the electric wire routing structure can prevent unintended defects from occurring in the electric wire connection portion and the ribbon electric wire.

[0028] As a further aspect of the present invention, the belt-shaped electric wire may be accommodated in the accommodating portion while being bent back into a U-shape. According to this configuration, the electric wire routing structure can easily pull out and store the ribbon-shaped electric wire as the slide seat advances and retreats.

[0029] In another aspect of the present invention, the ribbon electric wire may be led out from the storage case, and the led out portion may be arranged inside the fixed rail, and the storage case may accommodate the ribbon electric wire and be provided with a guide portion that guides the ribbon electric wire toward the inside of the fixed rail.

[0030] According to this configuration, the electric wire routing structure can guide the ribbon-shaped electric wire between the housing portion and the fixed rail by the guide portion, making it easier to pull out and house the ribbon-shaped electric wire.

[0031] Furthermore, since the ribbon electric wire is accommodated in the guiding portion, the electric wire routing structure can reliably prevent the ribbon electric wire from being damaged due to contact with foreign objects or due to unintended external forces being applied to the ribbon electric wire between the accommodating portion and the fixed rail. Therefore, the electric wire routing structure can reliably prevent unintended defects from occurring in the belt-shaped electric wire.

[0032] In accordance with the present invention, the guide portion may be formed of a straight portion extending linearly along the longitudinal direction of the fixed rail to the inside of the fixed rail, and a curved portion curved from the accommodating portion toward the straight portion. According to this configuration, the curved portion of the guide portion enables the electric wire routing structure to more smoothly guide the ribbon-shaped electric wire led out from the housing portion.

[0033] Furthermore, due to the straight portion of the guide portion, the electric wire routing structure can reliably guide the electric wire to the inside of the fixed rail without exposing the electric wire to the outside between the accommodation portion and the fixed rail, so that the electric wire routing structure can more reliably prevent the electric wire from being damaged due to contact with a foreign object or due to an unintended external force being applied to the electric wire. Effect of the Invention

[0034] According to the present invention, it is possible to provide an electric wire routing structure capable of preventing defects in an electric wire connection portion due to a pulling force. [Brief description of the drawings]

[0035] [Figure 1] FIG. 2 is an explanatory diagram illustrating an outline of a seat slide mechanism. [Diagram 2] FIG. 4 is a cross-sectional view showing the cross-sectional shape of the fixed rail in a longitudinal cross section along the width direction. [Diagram 3] FIG. 4 is a side view showing the appearance of the power supply device as viewed from the width direction. [Figure 4] FIG. 2 is an exploded perspective view showing the external appearance of the power supply device in a disassembled state. [Diagram 5] FIG. 4 is an explanatory diagram illustrating an outline of an electric wire connection portion. [Figure 6] A cross-sectional view taken along the line AA in FIG. [Figure 7] FIG. 4 is a side view showing the power supply device with the cover removed. [Figure 8] FIG. 4 is an external perspective view showing the external appearance of the front part of a case body of the first housing case. [Figure 9] FIG. 4 is an external perspective view showing the external appearance of a case body of the second housing case. [Figure 10] FIG. 11 is an explanatory diagram illustrating an outline of a seat slide mechanism according to another embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0036] 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 9 .

[0037] Note that Figure 1 is an explanatory diagram outlining the seat slide mechanism 1, Figure 2 is a cross-sectional view of the fixed rail 2 in a longitudinal section along the width direction Y, Figure 3 is a side view of the power supply device 5 as viewed from the width direction Y, and Figure 4 is an exploded oblique view of the power supply device 5 in a disassembled state.

[0038] 5 is an explanatory diagram for explaining the outline of the electric wire connection portion, FIG. 6 is a cross-sectional view taken along the line AA in FIG. 3, and FIG. 7 is a side view of the power supply device 5 with the covers 82, 92 removed. In addition, FIG. 8 shows an external perspective view of the front part of the case body 81 of the first housing case 80, and FIG. 9 shows an external perspective view of the case body 91 of the second housing case 90. As shown in FIG.

[0039] 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).

[0040] 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.

[0041] 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, a pair of left and right sliders 3 that slide 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.

[0042] 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.

[0043] 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). As shown in FIG. 2, in a vertical cross section taken along the width direction Y, the fixed rail 2 is formed into an open cross-sectional shape in which the center in the width direction Y of the upper surface of the substantially rectangular cross section is open.

[0044] More specifically, as shown in Figure 2, the fixed rail 2 is formed of a pair of outer surface portions 2a facing each other at a predetermined interval in the width direction Y, a pair of inner surface portions 2b facing each other inside the outer surface portions 2a, a bottom surface portion 2c connecting the lower ends of the outer surface portions 2a, and a pair of upper surface portions 2d connecting the upper ends of the outer surface portions 2a to the upper ends of the inner surface portions 2b.

[0045] Due to this configuration, in the fixed rail 2, as shown in FIG. 2, a slit extending in the front-rear direction X is formed in the approximate center in the width direction Y by the pair of inner side surface portions 2b. The slider 3 is configured to be slidable along the front-rear direction X in a slit of the fixed rail 2 that is formed by the pair of inner side surface portions 2b and extends in the front-rear direction X.

[0046] 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.

[0047] 1 and 3, the power supply device 5 is disposed below the front of one of the fixed rails 2 so as to be located between the fixed rail 2 and the floor surface (not shown) of the vehicle. As shown in Figures 1 and 3, one end of this 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.

[0048] 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.

[0049] In detail, as shown in Figures 3 and 4, 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.

[0050] Furthermore, as shown in Figures 3 and 4, the power supply device 5 has a first housing case 80 in which the vehicle body side wire connection portion 30 and the cable routing body 40 are housed, and a second housing case 90 in which the seat side wire connection portion 50 and the cable routing body 40 are housed.

[0051] 3 and 4, 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 electric wires with a round cross section, the conductors of which are covered with an insulating coating.

[0052] As shown in FIG. 4, the vehicle body side electric wire connection portion 30 is fixed to the vehicle body via a first housing case 80, and electrically connects the first wire harness 20 and the cable routing body 40.

[0053] As shown in FIG. 5, this vehicle body side wire connection portion 30 is composed of a connection terminal 31 that connects the first wire harness 20 to a flexible flat cable 41 that constitutes the cable routing body 40, and a terminal holder (not shown) that houses and holds the connection terminal 31.

[0054] More specifically, as shown in FIG. 5, the connection terminal 31 is integrally formed with a coating crimping portion 31a that crimps and holds the insulating coating of the coated electric wire 21 of the first wire harness 20, a conductor crimping portion 31b that crimps and holds the conductor of the coated electric wire 21, and a welding portion 31c to which the flexible flat cable 41 is welded.

[0055] As shown in FIG. 5, the connection terminal 31 is electrically connected by welding, for example by resistance welding, the flat rectangular conductor 41a of the flexible flat cable 41 exposed by partially removing the laminate sheet to the welded portion 31c of the connection terminal 31 to which the coated electric wire 21 is connected.

[0056] As shown in FIG. 4, the multiple cable routing bodies 40 are generally ribbon-shaped electric wires, one end of which is connected to the first wire harness 20 via a fixed vehicle body side electric wire connection portion 30, and the other end of which is connected to the second wire harness 60 via a seat side electric wire connection portion 50.

[0057] 6, this cable arrangement body 40 is composed of a plurality of flexible flat cables 41 and a protective tube 42 that integrally covers the plurality of flexible flat cables 41. The plurality of flexible flat cables 41 are layered in the thickness direction of the flexible flat cables 41 and bundled with an adhesive tape.

[0058] 5, the flexible flat cable 41 is formed by arranging rectangular conductors 41a, each having a substantially rectangular cross section and extending in a predetermined direction, in the width direction Y, and sandwiching the juxtaposed rectangular conductors 41a between insulating laminate sheets. The flexible flat cable 41 is formed to be longer than the moving distance of the slider 3 in the front-rear direction X.

[0059] 6 and 7, the protective tube 42 is a tubular protective member that covers the cable routing body 40. As shown in Fig. 4 and 7, the protective tube 42 covers the area of ​​the cable routing body 40 from the vicinity of the vehicle body side electric wire connection portion 30 to the vicinity of the seat side electric wire connection portion 50, and an end of the protective tube 42 is fixed to the flexible flat cable 41 using, for example, an adhesive tape. Although detailed illustration is omitted, the protective tube 42 is formed in a bellows shape having continuous projections and recesses along the longitudinal direction of the cable routing body 40 .

[0060] 4 and 7, the cable arrangement body 40 is arranged inside the first housing case 80 from the vehicle body side electric wire connection portion 30 toward the rear in a direction substantially parallel to the front-rear direction X through the upper portion of the first housing case 80. Furthermore, the cable arrangement body 40 is folded back toward the rear and downward in a substantially semicircular shape via the reversing portion 40a, and then arranged toward the front in a direction substantially parallel to the front-rear direction X through the lower portion of the first housing case 80.

[0061] The cable arrangement body 40 is folded back in an approximately semicircular shape toward the front and upper side in front of the vehicle body side electric wire connection portion 30, and is led out of the first housing case 80, and is arranged inside the second housing case 90 approximately parallel to the fore-and-aft direction X through the inside of the fixed rail 2.

[0062] For this reason, a pulling force caused by the advancement and retreat of the slide sheet 4 acts from the front to the rear on the portion of the cable arrangement body 40 that passes through the upper part of the first housing case 80 substantially parallel to the front-rear direction X. Furthermore, a pulling force caused by the advancement and retreat of the slide sheet 4 acts from the rear to the front on the portion of the cable arrangement body 40 that passes through the inside of the fixed rail 2 substantially parallel to the front-rear direction X.

[0063] As shown in FIGS. 3 and 4, the seat-side electric wire connection portion 50 electrically connects the cable routing body 40 and the second wire harness 60, and is connected to the slider 3 via the second accommodating case 90. In addition, since the seat side electric wire connecting portion 50 has the same configuration as the above-mentioned vehicle body side electric wire connecting portion 30, a detailed description thereof will be omitted.

[0064] 3 and 4, 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 electric wires with a round cross section, the conductors of which are covered with an insulating coating.

[0065] As shown in Figures 1 and 3, the first storage case 80 is a hollow box having a thickness in the width direction Y, and is fixed to the vehicle body below the fixed rail 2 via a support bracket that supports the fixed rail 2.

[0066] As shown in FIG. 3, the first storage case 80 has protruding portions at the front and rear that are roughly semicircular in side view, and is formed in a shape in which the roughly semicircular front and rear portions are connected by a roughly rectangular portion in side view.

[0067] As shown in Figures 4 and 6, this first storage case 80 is configured by assembling a case main body 81 that regulates the routing path of the cable routing body 40 and a cover body 82 that covers the opening of the case main body 81 in the width direction Y with the cable routing body 40 sandwiched therebetween.

[0068] As shown in Figures 3 and 4, the first storage case 80 is formed by assembling a case main body 81 and a cover body 82 to form a storage section 83 that stores the cable routing body 40 in an approximately U-shape, and a guide section 84 that guides the cable routing body 40 to be pulled out of the storage section 83 and to be stored in the storage section 83.

[0069] Specifically, as shown in Figures 3 and 6, the storage section 83 of the first storage case 80 is composed of a roughly semicircular portion in side view at the rear of the first storage case 80 and a roughly rectangular portion in side view extending forward from the roughly semicircular portion in side view.

[0070] On the other hand, as shown in FIG. 3, the guide portion 84 is composed of a curved portion 84a that curves upward and forward from the front end of the storage portion 83, and a straight portion 84b that extends rearward from the front end of the curved portion 84a and is positioned inside the fixed rail 2.

[0071] As shown in FIG. 3, the curved portion 84a of the guide portion 84 is formed so that its internal space gradually becomes smaller toward the straight portion 84b. Furthermore, as shown in Figures 2 and 3, the straight portion 84b of the guide portion 84 is arranged between the inner surface portions 2b of the fixed rail 2, so that the cable routing body 40 derived from the guide portion 84 passes between the inner surface portions 2b toward the second accommodating case 90.

[0072] 1 and 3, the second storage case 90 is a hollow box having a thickness in the width direction Y, and is disposed between the inner side surfaces 2b of the fixed rails 2. Furthermore, the front end of the second storage case 90 is connected to the slider 3, and is configured to be able to slide on the fixed rail 2 in the front-rear direction X in response to the sliding movement of the slide sheet 4.

[0073] As shown in Figures 4 and 7, this second storage case 90 is configured by assembling a case main body 91 that regulates the routing path of the cable routing body 40 and a cover body 92 that covers the opening of the case main body 91 in the width direction Y with the cable routing body 40 sandwiched therebetween.

[0074] Next, in the power supply device 5 having the above-mentioned configuration, the case body 81 of the first housing case 80 and the case body 91 of the second housing case 90 will be described in more detail. First, as shown in Figures 4 and 6, the case body 81 of the first storage case 80 is composed of a plate-shaped main surface portion 811 having a thickness in the width direction Y and facing the lid body 82, and an outer wall portion 812 extending toward the lid body 82 so as to follow the edge of the main surface portion 811.

[0075] Furthermore, as shown in Figures 7 and 8, the case body 81 of the first storage case 80 has a guide wall portion 813 that guides the withdrawal and storage of the cable routing body 40 and a regulating protrusion 814 that regulates the position of the vehicle body side electric wire connection portion 30, which are erected on the main surface portion 811 toward the lid body 82.

[0076] In addition, as shown in Figures 7 and 8, the case body 81 of the first storage case 80 has a first bending portion 815 and a second bending portion 816 that bend the cable routing body 40 near the vehicle body side wire connection portion 30 in the desired bending direction, and are erected on the main surface portion 811 toward the lid body 82.

[0077] 7, in a side view, the guide wall portion 813 is erected at a position spaced apart from the lower outer wall portion 812 corresponding to the guide portion 84 by a distance wider than the thickness of the cable routing body 40. The guide wall portion 813 is formed in a curved shape that is approximately parallel to the lower outer wall portion 812 corresponding to the guide portion 84.

[0078] 7, the restricting protrusions 814 are provided on the main surface portion 811 at positions higher than the vicinity of the rear end of the guide wall portion 813 so as to protrude from the main surface portion 811 so as to support the four corners of the vehicle-body-side electric wire connection portion 30. The restricting protrusions 814, together with restricting protrusions (not shown) provided on the lid body 82, restrict the position of the vehicle-body-side electric wire connection portion 30 inside the first housing case 80.

[0079] 7, the first bending portion 815 restricts the upward bending of the cable arrangement body 40 arranged in the front-rear direction X below the vehicle-body-side electric wire connection portion 30. More specifically, the first bending portion 815 is formed so as to bend the cable arrangement body 40 arranged from the vehicle-body-side electric wire connection portion 30 along the front-rear direction X in a bending direction (upward) intersecting with the direction of action (from front to rear) of a tensile force acting on the cable arrangement body 40 passing through the upper portion of the first housing case 80.

[0080] As shown in FIG. 7 , the first bending portion 815 is composed of a guide wall portion 813 that regulates the vertical position of the cable routing body 40 below the vehicle body side electric wire connection portion 30, and a pair of first wall portions 817 that regulate the position of the cable routing body 40 in the front-rear direction X behind the vehicle body side electric wire connection portion 30.

[0081] Specifically, as shown in Figures 7 and 8, the pair of first wall portions 817 are plate-shaped having a thickness in the front-rear direction X, and are arranged opposite each other in the front-rear direction X at a distance slightly wider than the thickness of the cable routing body 40.

[0082] 7, the upper end of the front first wall portion 817 is connected to the upper outer wall portion 812 corresponding to the housing portion 83. Furthermore, the front first wall portion 817 is formed with a length in the vertical direction that can ensure a gap between the front first wall portion 817 and the guide wall portion 813 that can restrict bending of the cable routing body 40 with a bending radius larger than the thickness of the flexible flat cable 41.

[0083] On the other hand, on the front surface of the rear first wall portion 817, as shown in Figures 7 and 8, three ribs 817a are protruding at a predetermined interval in the vertical direction, which engage with the valley portion of the bellows portion of the protective tube 42 and clamp the bent cable routing body 40 between the front first wall portion 817.

[0084] 7 and 8, the three ribs 817a protrude toward the front first wall portion 817 and extend in the width direction Y. The three ribs 817a are formed at intervals substantially equal to the valley portions of the bellows portion of the protective tube 42 so that the protective tube 42 can engage with them.

[0085] 7, the second bending portion 816 restricts the bending of the cable arrangement body 40 bent upward by the first bending portion 815 toward the rear. More specifically, the second bending portion 816 is formed to bend the cable arrangement body 40 passing through the upper part of the first accommodating case 80 substantially parallel to the front-rear direction X in a bending direction (downward) intersecting with the direction of action (from front to rear) of a tensile force acting on the cable arrangement body 40 passing through the upper part of the first accommodating case 80.

[0086] As shown in FIG. 7 , this second bending portion 816 is composed of a pair of first wall portions 817 that regulate the position of the cable routing body 40 in the front-to-rear direction X, and a pair of second wall portions 818 that are behind the pair of first wall portions 817 and regulate the position of the cable routing body 40 in the up-down direction.

[0087] Specifically, as shown in FIG. 7, the pair of second wall portions 818 are plate-shaped having a thickness in the vertical direction, and are arranged facing each other in the vertical direction with a gap therebetween that is slightly wider than the thickness of the cable routing body 40.

[0088] Of the pair of second wall portions 818, the upper second wall portion 818 is configured with an upper outer wall portion 812 corresponding to the storage portion 83, as shown in FIGS. On the other hand, the lower second wall portion 818 is in the form of a plate that is approximately parallel to the outer wall portion 812, as shown in Figs. 7 and 8, and has a front end connected to the upper end of the rear first wall portion 817. In addition, a corner 816a between the rear first wall portion 817 and the lower second wall portion 818 is chamfered with a bending radius that can restrict bending of the cable routing body 40 with a bending radius larger than the thickness of the flexible flat cable 41.

[0089] Furthermore, as shown in Figures 7 and 8, on the upper surface of the lower second wall portion 818, two ribs 818a are protruded at a predetermined interval in the front-to-rear direction X, which engage with the valley portion of the bellows portion of the protective tube 42 and clamp the cable routing body 40 between the upper second wall portion 818, which is the outer wall portion 812 of the case main body 81. Specifically, the two ribs 818a protrude toward the upper second wall portion 818 and extend in the width direction Y, as shown in FIGS.

[0090] The two ribs 818a are formed at approximately the same interval as the valley portion of the bellows portion of the protective tube 42 so that the protective tube 42 can be engaged therewith. With the first housing case 80 having such a configuration, the cable routing body 40 is routed in a crank shape inside the first housing case 80 near the vehicle body side electric wire connection portion 30 as shown in FIG.

[0091] 7, the case body 91 of the second housing case 90 houses the cable routing body 40, the seat-side electric wire connection portion 50, and the second wire harness 60 in this order from the front to the rear. Inside the second housing case 90, the cable routing body 40 is routed from the seat-side electric wire connection portion 50 toward the front.

[0092] As shown in Figures 7 and 9, the case body 91 of this second storage case 90 has a thickness in the width direction Y and is equipped with a plate-shaped main surface portion 911 facing the lid body 92, a front wall portion 912 extending toward the lid body 92 along the front edge of the main surface portion 911, and an upper wall portion 913 extending toward the lid body 92 along the upper edge of the main surface portion 911.

[0093] Furthermore, as shown in Figures 7 and 9, the case body 91 of the second storage case 90 has a rear wall portion 914 that is erected toward the lid body 92 along the rear edge of the main surface portion 911, and a lower wall portion 915 that is erected toward the lid body 92 along the lower edge of the main surface portion 911.

[0094] In addition, as shown in Figures 7 and 9, the case body 91 of the second storage case 90 has a first bending portion 916 and a second bending portion 917 that bend the cable routing body 40 near the sheet-side wire connection portion 50 in the desired bending direction, and are provided on the main surface portion 911 toward the lid body 92.

[0095] 7, the first bending portion 916 restricts downward bending of the cable arrangement body 40 arranged in the front-rear direction X in front of the seat-side electric wire connection portion 50. More specifically, the first bending portion 916 is formed to bend the cable arrangement body 40 arranged from the seat-side electric wire connection portion 50 toward the front in a bending direction (downward) intersecting with the acting direction (rear to front) of the tensile force acting on the cable arrangement body 40 passing through the inside of the fixed rail 2.

[0096] As shown in Figure 7, this first bending portion 916 is composed of an upper wall portion 913 that regulates the up-down position of the cable routing body 40 in front of the sheet-side wire connection portion 50, and a pair of first wall portions 918 that regulate the position of the cable routing body 40 in the front-to-rear direction X below the upper wall portion 913. Specifically, as shown in FIG. 7, the pair of first wall portions 918 are plate-shaped having a thickness in the front-rear direction X, and are arranged opposite each other in the front-rear direction X at a distance slightly wider than the thickness of the cable routing body 40. Of the pair of first wall portions 918, the front first wall portion 918 is formed by the front wall portion 912 of the case main body 91, as shown in FIGS.

[0097] Furthermore, on the rear surface of the front first wall portion 918 (front wall portion 912), as shown in Figures 7 and 9, two ribs 918a are protruding at a predetermined distance in the vertical direction, which engage with the valley portion of the bellows portion of the protective tube 42 and clamp the cable routing body 40 between the rear first wall portion 918.

[0098] 7 and 9, the two ribs 918a protrude toward the rear first wall portion 918 and extend in the width direction Y. The two ribs 918a are formed at approximately the same interval as the valley portion of the bellows portion of the protective tube 42 so that the protective tube 42 can engage with them.

[0099] 7 and 9, the rear first wall portion 918 is formed in a plate shape that is approximately parallel to the front wall portion 912. As shown in Fig. 7 and 9, the rear first wall portion 918 is formed with a vertical length that extends from a position spaced a predetermined distance below the upper wall portion 913 of the case main body 91 to approximately the same vertical position as the lower wall portion 915.

[0100] Between the rear first wall portion 918 and the upper wall portion 913, a gap is provided that allows the cable routing body 40 to be restricted from bending with a bending radius larger than the thickness of the cable routing body 40.

[0101] 7, the second bending portion 917 restricts the bending of the cable arrangement body 40 bent by the first bending portion 916 toward the front. More specifically, the second bending portion 917 is formed so as to bend the cable arrangement body 40 passing through the inside of the fixed rail 2 in a bending direction (upward) intersecting with the direction of action (rear to front) of a tensile force acting on the cable arrangement body 40 passing through the inside of the fixed rail 2.

[0102] As shown in FIG. 7 , the second bending portion 917 is composed of a pair of first wall portions 918 that regulate the position of the cable routing body 40 in the front-to-rear direction X, and a pair of second wall portions 919 that regulate the up-down position of the cable routing body 40 routed along the front-to-rear direction X below the first wall portions 918.

[0103] 7, the pair of second wall portions 919 are provided at the lower front end of the second accommodating case 90, and are formed as guide portions that guide the cable routing body 40 into the inside of the second accommodating case 90. The pair of second wall portions 919 are plate-shaped having a thickness in the vertical direction, and are disposed opposite each other in the vertical direction at a distance substantially equal to the thickness of the cable routing body 40.

[0104] Specifically, as shown in Figures 7 and 9, the pair of second wall portions 919 are formed such that the upper second wall portion 919 extends forward from the lower end of the front wall portion 912, and the lower second wall portion 919 is formed such that its tip extends downward from the lower wall portion 915 and extends forward.

[0105] A corner 917 a between the upper second wall portion 919 and the front wall portion 912 is chamfered with a bending radius that can restrict bending of the cable routing body 40 with a bending radius larger than the thickness of the flexible flat cable 41 . With the second accommodating case 90 configured as described above, the cable routing body 40 is routed in a crank shape inside the second accommodating case 90 near the seat-side electric wire connection portion 50, as shown in FIG.

[0106] As described above, in the electric wire routing structure of this embodiment, 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, is routed to the sliding seat 4, which is supported so as to be able to slide back and forth along the fore-aft direction X of the fixed rail 2 fixed to the vehicle body, to supply electricity.

[0107] This wire routing structure has one end of a cable routing body 40 connected to a first wire harness 20 at a fixed vehicle body side wire connection portion 30, and the other end of the cable routing body 40 connected to a second wire harness 60 at a fixed seat side wire connection portion 50.

[0108] In the first storage case 80, the wire routing structure is provided with bending portions (first bending portion 815 and second bending portion 816) that bend the cable routing body 40 near the vehicle body side wire connection portion 30 in a bending direction (up-down direction) that intersects with the direction of action of the tensile force acting on the cable routing body 40 (front-to-back direction X). According to this, the electric wire routing structure can prevent malfunction of the vehicle body side electric wire connection portion 30 due to pulling force.

[0109] Specifically, by providing bending portions (first bending portion 815 and second bending portion 816) that bend the cable routing body 40 near the vehicle body side electric wire connection portion 30, the electric wire routing structure can receive the tensile force acting on the cable routing body 40 at the bending portions and reduce the tensile force applied to the vehicle body side electric wire connection portion 30. Therefore, the electric wire routing structure can prevent malfunction of the vehicle body side electric wire connection portion 30 due to the tensile force.

[0110] In addition, when a pressing force caused by the advancement and retreat of the slide seat 4 acts on the cable routing body 40, the portion of the cable routing body 40 bent at the bent portion can absorb the pressing force. Therefore, the electric wire routing structure can reduce the pressing force acting on the cable routing body 40 near the vehicle body side electric wire connection portion 30, and prevent the cable routing body 40 near the vehicle body side electric wire connection portion 30 from being deformed, for example, by buckling.

[0111] In addition, in the second storage case 90, the wire routing structure is provided with bending portions (first bending portion 916 and second bending portion 917) that bend the cable routing body 40 near the seat side wire connection portion 50 in a bending direction (up-down direction) that intersects with the direction of action of the tensile force acting on the cable routing body 40 (front-to-back direction X). According to this, similar to the case of the first accommodating case 80, the electric wire routing structure can prevent malfunction of the seat-side electric wire connecting portion 50 due to a pulling force.

[0112] A plurality of bent portions are provided at predetermined intervals, and the first bent portion 815 of the first accommodating case 80 is formed so that the bending direction of the cable arrangement body 40 with respect to the acting direction of the tensile force (front-rear direction X) is upward. On the other hand, the second bent portion 816 of the first accommodating case 80 is formed so that the bending direction of the cable arrangement body 40 with respect to the acting direction of the tensile force (front-rear direction X) is downward.

[0113] According to this configuration, the first bending portion 815 and the second bending portion 816 are formed so that the bending directions of the cable routing body 40 are opposite to each other, so that the electric wire routing structure can bend the cable routing body 40 into an approximately crank shape.

[0114] Therefore, the electric wire routing structure can reliably receive the tensile force acting on the cable routing body 40 at the first bending portion 815 and the second bending portion 816, and can further prevent the tensile force in the fore-and-aft direction X from being directly applied to the vehicle body side electric wire connection portion 30. As a result, the electric wire routing structure can further reduce the pulling force applied to the vehicle body side electric wire connection portion 30.

[0115] The first bent portion 916 of the second accommodating case 90 is formed so that the cable arrangement body 40 is bent downward relative to the direction in which the tensile force acts (front-rear direction X). On the other hand, the second bent portion 917 of the second accommodating case 90 is formed so that the cable arrangement body 40 is bent upward relative to the direction in which the tensile force acts (front-rear direction X).

[0116] According to this configuration, in the electric wire routing structure, similarly to the first accommodating case 80, the pulling force acting on the cable routing body 40 can be reliably received by the first bent portion 916 and the second bent portion 917.

[0117] Therefore, the electric wire routing structure can further prevent a tensile force in the front-rear direction X from being directly applied to the seat-side electric wire connection portion 50. As a result, the electric wire routing structure can further reduce the pulling force applied to the seat-side electric wire connection portion 50.

[0118] The cable arrangement body 40 is a laminate of band-shaped flexible flat cables 41 each having a conductor sandwiched between insulating sheets. The bent portions (first bent portions 815, 916 and second bent portions 816, 917) are configured to bend the flexible flat cable 41 in the thickness direction.

[0119] According to this configuration, the electric wire routing structure can reliably bend the cable routing body 40 along the bent portion, and can ensure the contact area between the bent portion and the cable routing body 40.

[0120] Therefore, the wire routing structure can reliably receive the tensile force acting on the cable routing body 40 at the bent portion, thereby reliably reducing the tensile force acting on each of the vehicle body side wire connection portion 30 and the seat side wire connection portion 50.

[0121] The first wire harness 20 is configured with a covered electric wire 21 having a round cross section, the conductor of which is covered with an insulating coating. The vehicle body side electric wire connection portion 30 is configured such that the rectangular conductor 41a of the flexible flat cable 41 and the conductor of the covered electric wire 21 are connected via a connection terminal 31.

[0122] According to this configuration, the electric wire routing structure can easily connect the flexible flat cable 41 and the covered electric wire 21 via the connection terminal 31, and can improve the connection strength compared to when the flexible flat cable 41 and the covered electric wire 21 are directly connected.

[0123] As a result, the electric wire routing structure can prevent the flexible flat cable 41 and the coated electric wire 21 from being disconnected by cooperation of the bent portions (the first bent portion 815 and the second bent portion 816) and the connection terminal 31.

[0124] Therefore, the electric wire routing structure can ensure a stable connection state of the vehicle body side electric wire connection portion 30 even when the flexible flat cable 41 and the covered electric wire 21 of different wire types are connected.

[0125] The second wire harness 60 is configured with a covered electric wire 21 having a round cross section, the conductor of which is covered with an insulating coating. The sheet-side electric-wire connection portion 50 is configured such that the rectangular conductor 41a of the flexible flat cable 41 and the conductor of the covered electric wire are connected via a connection terminal. According to this configuration, the electric wire routing structure can ensure a stable connection state of the seat-side electric wire connection portion 50, similar to the vehicle body-side electric wire connection portion 30 described above.

[0126] The electric wire routing structure is provided with a tubular protective tube 42 that covers the flexible flat cable 41. According to this configuration, the electric wire routing structure can prevent damage to the flexible flat cable 41 due to sliding with the bent portions (the first bent portions 815, 916 and the second bent portions 816, 917). Therefore, the electric wire routing structure can ensure stable conductivity of the flexible flat cable 41.

[0127] Further, the second bent portions 816 and 917 restrict bending of the cable routing body 40 to a bending radius equal to or larger than the thickness of the flexible flat cable 41 . According to this configuration, the electric wire routing structure can prevent the cable routing body 40 from being bent in a folding manner, so that stable conductivity of the cable routing body 40 can be reliably ensured.

[0128] Furthermore, by providing a curved surface at the second bending portion 816, 917 to regulate the bending radius of the cable routing body 40, the electric wire routing structure can better prevent damage to the cable routing body 40 due to strong contact with the second bending portion 816, 917.

[0129] In the first accommodating case 80, the first bent portion 815 is provided with a pair of first walls 817 that sandwich the bent cable routing body 40 therebetween.

[0130] According to this configuration, the electric wire routing structure can reliably bend the cable routing body 40, and can restrict the movement of the cable routing body 40 by the first wall portion 817. Therefore, the electric wire routing structure can more reliably reduce the pulling force applied to the vehicle body side electric wire connection portion 30.

[0131] In the first accommodating case 80, the second bent portion 816 is provided with a pair of first walls 817 and a pair of second walls 818 that sandwich the bent cable routing body 40 therebetween. According to this configuration, the electric wire routing structure can more reliably reduce the pulling force applied to the vehicle body side electric wire connection portion 30, similar to the first bent portion 815.

[0132] In the second accommodating case 90, the first bending portion 916 is provided with a pair of first walls 918 that sandwich the bent cable arrangement body 40. Furthermore, the second bending portion 917 is provided with a pair of first wall portions 918 and second wall portions 919 that sandwich the bent cable arrangement body 40. According to this configuration, like the first accommodating case 80, the electric wire routing structure can more reliably reduce the pulling force applied to the seat-side electric wire connection portion 50.

[0133] In addition, the first storage case 80 has a rib 817a on the rear first wall portion 817 that stands toward the front first wall portion 817 and extends in the width direction Y, and a rib 818a on the lower second wall portion 818 that stands toward the upper second wall portion 818 and extends in the width direction Y.

[0134] According to this configuration, the electric wire routing structure can reliably restrict the movement of the cable routing body 40 near the vehicle body side electric wire connection portion 30 by the first wall portion 817 and the second wall portion 818. Therefore, the electric wire routing structure can further reliably reduce the tensile force applied to the vehicle body side electric wire connection portion 30 when a tensile force acts on the cable routing body 40.

[0135] The second housing case 90 is provided with a rib 918a on the front first wall portion 918, the rib 918a standing toward the rear first wall portion 918 and extending in the width direction Y. According to this configuration, the electric wire routing structure can reliably restrict the movement of the cable routing body 40 in the vicinity of the seat-side electric wire connection portion 50 by the first wall portion 918. Therefore, the electric wire routing structure can further reliably reduce the tensile force applied to the seat-side electric wire connection portion 50 when a tensile force acts on the cable routing body 40.

[0136] The electric wire routing structure includes a bellows-shaped protective tube 42 that covers the flexible flat cable 41 and is fixed to the flexible flat cable 41 and has continuous projections and recesses along the longitudinal direction of the cable routing body 40. In the electric wire routing structure, the ribs 817a, 818a of the first accommodating case 80 and the valley portions of the protective tube 42 engage with each other.

[0137] According to this configuration, the electric wire routing structure can more reliably restrict the movement of the cable routing body 40 in the vicinity of the vehicle body-side electric wire connection portion 30 by the engagement between the valley portion of the protective tube 42 fixed to the flexible flat cable 41 and the ribs 817a, 818a. Therefore, when a tensile force acts on the cable routing body 40, the electric wire routing structure can more reliably reduce the tensile force applied to the vehicle body-side electric wire connection portion 30.

[0138] In addition, the electric wire routing structure is such that the rib 918a of the second accommodating case 90 and the valley portion of the protective tube 42 engage with each other. According to this configuration, the electric wire routing structure can more reliably restrict the movement of the cable routing body 40 in the vicinity of the sheet-side electric wire connection portion 50 by the engagement between the valley portion of the protective tube 42 fixed to the flexible flat cable 41 and the rib 918a. Therefore, the electric wire routing structure can more reliably reduce the tensile force applied to the sheet-side electric wire connection portion 50 when a tensile force acts on the cable routing body 40.

[0139] In addition, the wire routing structure is such that the vehicle body side end of the cable routing body 40 is connected to the vehicle body side wire harness 6 via the vehicle body side wire connection portion 30, and the seat side end of the cable routing body 40 is connected to the seat side wire harness 7 via the seat side wire connection portion 50.

[0140] Furthermore, the electric wire routing structure includes a first storage case 80 provided outside the fixed rail 2, which houses the vehicle body side electric wire connection portion 30 and has a storage portion 83 capable of pulling out and storing the cable routing body 40 as the sliding seat 4 moves forward and backward.

[0141] According to this configuration, since the vehicle body side electric wire connection portion 30 and the cable routing body 40 are accommodated in the accommodation portion 83 of the first accommodation case 80, the electric wire routing structure can prevent the vehicle body side electric wire connection portion 30 and the cable routing body 40 from being damaged due to contact with a foreign object or due to the application of an unintended external force to the vehicle body side electric wire connection portion 30 and the cable routing body 40. Therefore, the electric wire routing structure can prevent the vehicle body side electric wire connection portion 30 and the cable routing body 40 from being damaged due to an unintended malfunction.

[0142] In addition, in the housing portion 83, the cable routing body 40 is housed while being bent back into a U-shape. According to this configuration, the electric wire routing structure can easily pull out and store the cable routing body 40 when the slide seat 4 moves back and forth.

[0143] Further, the cable routing body 40 is led out from the first housing case 80 , and the led out portion is routed inside the fixed rail 2 . The first housing case 80 houses the cable routing body 40 and is provided with a guide portion 84 that guides the cable routing body 40 toward the inside of the fixed rail 2.

[0144] According to this configuration, the electric wire routing structure can guide the cable routing body 40 between the storage portion 83 and the fixed rail 2 by the guide portion 84, making it easier to pull out and store the cable routing body 40.

[0145] Furthermore, since the cable routing body 40 is accommodated in the guide portion 84, the electric wire routing structure can reliably prevent the cable routing body 40 from being damaged due to contact with foreign objects or due to unintended external forces being applied to the cable routing body 40 between the accommodation portion 83 and the fixed rail 2. Therefore, the electric wire routing structure can reliably prevent unintended malfunctions from occurring in the cable routing body 40.

[0146] In addition, the guide portion 84 is formed of a straight portion 84b that extends linearly along the front-rear direction X to the inside of the fixed rail 2, and a curved portion 84a that curves from the storage portion 83 toward the straight portion 84b. According to this configuration, the curved portion 84a of the guide portion 84 enables the electric wire routing structure to guide the cable routing body 40 led out from the housing portion 83 more smoothly.

[0147] Furthermore, the straight portion 84b of the guide portion 84 prevents the cable routing body 40 from being exposed to the outside between the housing portion 83 and the fixed rail 2, and the electric wire routing structure can reliably guide the cable routing body 40 to the inside of the fixed rail 2. Therefore, the electric wire routing structure can more reliably prevent the cable routing body 40 from being damaged due to contact with a foreign object or due to the application of an unintended external force to the cable routing body 40.

[0148] In the configuration of the present invention and the correspondence with the above-mentioned embodiment, The longitudinal direction of the present invention corresponds to the front-rear direction X of the embodiment. Similarly, The vehicle body side wire corresponds to the vehicle body side wire harness 6, The seat side wire corresponds to the seat side wire harness 7. The electric wire corresponds to the cable arrangement body 40, The electric wire connection portion and the electric wire connection portion on the vehicle body side correspond to the vehicle body side electric wire connection portion 30; The electric wire connection portion and the sheet-side electric wire connection portion correspond to the sheet-side electric wire connection portion 50; The separate electric wires correspond to the first wire harness 20 and the second wire harness 60, The direction of action corresponds to front to rear or rear to front, The bending direction corresponds to upward or downward, The bent portions correspond to first bent portions 815, 916 and second bent portions 816, 917. The ribbon wire corresponds to the flexible flat cable 41. The pair of walls corresponds to first walls 817, 918 and second walls 818, 919. The housing case corresponds to the first housing case 80, The present invention is not limited to the configurations of the above-described embodiments, and many other embodiments can be obtained.

[0149] For example, in the above-described embodiment, the seat slide mechanism 1 has the power supply device 5 disposed below the fixed rail 2. However, the present invention is not limited to this. The power supply device 8 may be disposed adjacent to the fixed rail 2 in the width direction Y as shown in FIG. 10 which shows an explanatory diagram illustrating an outline of the seat slide mechanism 1 in another embodiment.

[0150] Furthermore, the first housing case 9 of the power supply device 8 may be arranged so that the thickness direction is the vertical direction, as shown in Fig. 10. In this case, inside the first housing case 9, the flexible flat cable is arranged so that the parallel direction of the flat conductors is the vertical direction.

[0151] Although detailed illustration is omitted, the first storage case 9 in the power supply device 8 has an upper surface of the storage section located below the upper surface of the fixed rail 2, and an upper surface of the guide section formed as a slope that gradually slopes upward in a spiral shape from the storage section to the fixed rail.

[0152] In addition, although the power supply device 5 is disposed below one of the fixed rails 2, the present invention is not limited to this, and the power supply device 5 may be disposed below the other fixed rail 2. Alternatively, the power supply device 5 may be disposed below each of the left and right fixed rails 2.

[0153] In addition, the vehicle body side electric wire connection portion 30 and the seat side electric wire connection portion 50 are connected by the cable arrangement body 40, but this is not limiting, and any appropriate electric wire may be used as long as it is capable of electrically connecting the vehicle body side electric wire connection portion 30 and the seat side electric wire connection portion 50. Note that the appropriate electric wire may be, for example, a single flexible flat cable, a flat cable composed of coated electric wires with a round cross section, or a wire harness in which coated electric wires are bundled together.

[0154] In addition, the second storage case 90 holding the cable routing body 40 is configured to move in the front-to-rear direction X through the slit of the fixed rail 2, but this is not limited to this, and the second storage case may be configured to move in the front-to-rear direction X through the opening of a case that is provided separately from the fixed rail 2 and arranged adjacent to the fixed rail 2.

[0155] Furthermore, the first wire harness 20 and the second wire harness 60 are configured with a plurality of covered electric wires 21, but this is not limited thereto, and the first wire harness and / or the second wire harness may be configured with a flexible flat cable or the like as long as it can be connected to the cable routing body 40 via the connection terminal 31.

[0156] In addition, in the vehicle body side electric wire connection portion 30, the flexible flat cable 41 and the first wire harness 20 are connected via the connection terminal 31 having the covering crimping portion 31a and the conductor crimping portion 31b, but this is not limiting.

[0157] For example, the flexible flat cable 41 and the first wire harness 20 may be connected via a bus bar. In this case, the rectangular conductor 41a of the flexible flat cable 41 and the conductor of the first wire harness 20 are connected by welding to the bus bar. Similarly, in the seat-side electric wire connection portion 50, the flexible flat cable 41 and the second wire harness 60 may be connected via a bus bar.

[0158] In addition, the first accommodating case 80 is provided with two bent portions (the first bent portion 815 and the second bent portion 816) and the second accommodating case 90 is provided with two bent portions (the first bent portion 916 and the second bent portion 917), but this is not limiting. For example, the accommodating case may be provided with one bent portion or three or more bent portions.

[0159] In addition, in the first housing case 80, the second bent portion 816 is configured by a pair of first wall portions 817 and a pair of second wall portions 818, but is not limited thereto, and may be, for example, a bent portion configured by a chamfered portion that is a corner portion 816a between the first wall portion 817 and the second wall portion 818. Alternatively, the bent portion may be configured by a pair of first wall portions 817 and an upper second wall portion 818 (upper outer wall portion 812).

[0160] Similarly, in the second housing case 90, the second bent portion 917 is configured by a pair of first wall portions 918 and a pair of second wall portions 919, but is not limited thereto, and may be, for example, a bent portion configured by a chamfered portion that is a corner portion 917a between the first wall portion 918 and the second wall portion 919. Alternatively, the bent portion may be configured by a pair of first wall portions 918 and a second wall portion 919 below.

[0161] In addition, although the ribs 817a, 918a are provided on one of the first wall portions 817, 918, the present invention is not limited to this, and the ribs may also be provided on the other of the first wall portions 817, 918. Similarly, although the ribs 818a are provided on one of the second wall portions 818, the present invention is not limited to this, and the ribs may also be provided on the other of the second wall portions 818. [Explanation of symbols]

[0162] 2…Fixed rail 4. Slide sheet 6…Vehicle body side wire harness 7…Seat side wire harness 20…First wire harness 21…Coated wire 30…Car body side electric wire connection part 31...Connection terminal 40…Cable wiring body 41...Flexible flat cable 42…Protection tube 50…Sheet side electric wire connection part 60…Second wire harness 80…First containment case 83…Storage section 84…Information Department 84a…Curved section 84b…straight line part 815,916…First bending section 816,917…Second bending section 817,918…First wall part 818,919…Second wall part 817a, 818a, 918a...Rib 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 that is fixed to a vehicle body, by arranging an 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, At least one end of the electric wire is connected to another electric wire by a fixed electric wire connection part, a bending portion is provided to bend the electric wire in a vicinity of the electric wire connection portion in a bending direction intersecting a direction in which a tensile force acts on the electric wire, The bent portion is provided at a plurality of predetermined intervals, The adjacent bent portions are The wires are bent in opposite directions. Wire routing structure.

2. The electric wire is It is a ribbon-shaped electric wire with a conductor sandwiched between insulating sheets. The bent portion is The ribbon-shaped electric wire is bent in the thickness direction. The electric wire routing structure according to claim 1 .

3. The separate electric wire is It is a coated electric wire with a round cross section, in which the conductor is covered with an insulating coating. The electric wire connection portion is The conductor of the ribbon-shaped electric wire and the conductor of the coated electric wire are connected via a connection terminal. The electric wire routing structure according to claim 2 .

4. A protective tube is provided to cover the electric wire. The electric wire routing structure according to claim 2 or 3.

5. The bent portion is The bending of the ribbon-shaped electric wire is restricted to a bending radius equal to or greater than the thickness of the ribbon-shaped electric wire. The electric wire routing structure according to any one of claims 2 to 4.

6. The bent portion is A pair of walls are provided to sandwich the bent ribbon-shaped electric wire. The electric wire routing structure according to any one of claims 2 to 5.

7. At least one of the pair of walls is provided with a rib extending in a width direction of the belt-shaped electric wire and extending toward the other wall. The electric wire routing structure according to claim 6.

8. a bellows-shaped protective tube is provided that covers the strip-shaped electric wire, is fixed to the strip-shaped electric wire, and has continuous projections and recesses along a longitudinal direction of the strip-shaped electric wire; The rib and the recess of the protective tube engage with each other. The electric wire routing structure according to claim 7.

9. The vehicle body side end of the belt-shaped electric wire is connected to the vehicle body side electric wire via a vehicle body side electric wire connection part, The sheet-side end of the strip-shaped electric wire is connected to the sheet-side electric wire via the sheet-side electric wire connection part, A housing case is provided outside the fixed rail, which houses the electric wire connection part on the vehicle body side and has a housing part that can pull out and house the belt-shaped electric wire as the slide seat advances and retreats. The electric wire routing structure according to any one of claims 2 to 8.

10. In the storage section, the ribbon-shaped electric wire is stored in a U-shaped bent state. The electric wire routing structure according to claim 9.

11. The ribbon-shaped electric wire is The housing is led out from the housing case, and the led out portion is arranged inside the fixed rail, The storage case includes: The belt-shaped electric wire is accommodated in the guide portion, which guides the belt-shaped electric wire toward the inside of the fixed rail. The electric wire routing structure according to claim 9 or 10.

12. The guide unit is a straight portion extending straight into the fixed rail along the longitudinal direction of the fixed rail; a curved portion curved from the storage portion toward the straight portion; The electric wire routing structure according to claim 11.

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