Wiring structure and rail unit

Abstract

To provide a wiring structure for a cable wiring body 11 and a rail unit 1, capable of preventing damage to the cable wiring body 11, resulting from forward and backward movements of a slide seat 4.SOLUTION: A wiring structure for a cable wiring body 11 in which the cable wiring body 11 is routed to supply electricity to a slide seat 4, comprises: a housing case 16 that houses the cable wiring body 11 inside; and a holding member 17 that holds the cable wiring body 11 drawn out of the housing case 16. An opening 16a through which the cable wiring body 11 drawn out toward the slide seat 4 passes is formed in the housing case 16. The holding member 17 is configured to slidably move the opening 16a in a longitudinal direction and to hold the cable wiring body 11 drawn out via the opening 16a, and the opening 16a of the housing case 16 is opened in any direction from a horizontal direction to a downward direction in the housing case 16.SELECTED DRAWING: Figure 3

Description

[Technical field]

[0001] The present invention relates to a wiring structure for a wiring body such as a flexible flat cable that is routed 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 fixed to the vehicle body in a vehicle such as an automobile, and to a rail unit for supplying power. [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 sliding seat side, which is supported so as to be able to slide back and forth along the longitudinal direction of a fixed rail fixed to the vehicle body, and a vehicle-side electric wire provided on the vehicle body side are connected by a wiring body (flexible flat cable).

[0003] Specifically, one end of the wiring body in Patent Document 1 is fixed to an end of a fixed rail, and the other end is fixed to a cable winding device connected to a slider. The wiring body in Patent Document 1 is stored in a spirally wound state inside the cable winding device, and is pulled out into the inside of the fixed rail or wound up inside the cable winding device in accordance with the advancement and retreat of the slide sheet.

[0004] However, the slit in the fixed rail is opened wide enough to allow the slider to move forward and backward, and therefore can easily become an intrusion point for foreign objects from above. For this reason, in Patent Document 1, when the slide sheet moves forward and backward, the wiring body may slide against the foreign object inside the fixed rail and be damaged. Alternatively, the wiring body may be damaged inside the cable winding device if the foreign object is wound up inside the cable winding device together with the wiring body. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] International Publication No. 2019 / 188811 Summary of the Invention [Problem to be solved by the invention]

[0006] In view of the above-mentioned problems, the present invention has an object to provide a wiring structure and a rail unit that can prevent damage to the wiring caused by the advancement and retreat of a slide sheet. [Means for solving the problem]

[0007] The present invention relates to a wiring structure for supplying electricity to a sliding seat that is supported on a fixed rail fixed to a vehicle body and slides so as to be able to advance and retreat along the longitudinal direction of the fixed rail, the wiring structure having one end electrically connected to a vehicle body side electric wire and the other end electrically connected to a seat side electric wire, the wiring structure including a storage case that stores the wiring and is provided separately from the fixed rail, and a holding member that holds the wiring pulled out to the exterior of the storage case, the storage case having an opening along the longitudinal direction and having an opening through which the wiring pulled out from inside the storage case towards the sliding seat passes, the holding member is configured to slide in the longitudinal direction through the opening in accordance with the advancement and retreat of the sliding seat in the longitudinal direction, and to hold the wiring pulled out through the opening, the opening of the storage case being open in any direction between the horizontal direction and a downward direction of the storage case. The wiring body is made up of a strip-shaped electric wire in which a plurality of conductors are arranged in parallel and covered with a covering material, and the strip-shaped electric wire is arranged inside the storage case so that the thickness direction is substantially vertical. It is characterized by:

[0008] The present invention also provides a vehicle seat comprising: a fixed rail that is fixed to a vehicle body and slidably supports a sliding seat so that the sliding seat can move back and forth along a longitudinal direction; a wiring body having one end electrically connected to a vehicle body side electric wire and the other end electrically connected to a seat side electric wire and supplying electricity to the sliding seat; a storage case that stores the wiring body therein and is provided separately from the fixed rail; and a holding member that holds the wiring body drawn out to the outside of the storage case, the storage case opening along the longitudinal direction and having an opening through which the wiring body drawn out from inside the storage case towards the sliding seat passes, the holding member slidingly moves through the opening in the longitudinal direction in accordance with the movement of the sliding seat back and forth in the longitudinal direction, and is configured to be able to hold the wiring body drawn out through the opening, the opening of the storage case opening in any direction between a horizontal direction and a downward direction in the storage case. The wiring body is made up of a strip-shaped electric wire in which a plurality of conductors are arranged in parallel and covered with a covering material, and the strip-shaped electric wire is arranged inside the storage case so that the thickness direction is substantially vertical. It is characterized by being a rail unit.

[0009] The wiring body refers to, for example, a ribbon-shaped electric wire such as a flexible flat cable, an electric wire in which a conductor is covered with an insulating coating, or a wire harness made up of a plurality of electric wires.

[0010] The ribbon-shaped electric wire refers to a flexible flat cable in which a plurality of conductors arranged in parallel are sandwiched between insulating sheets, or a flat cable or ribbon cable in which a plurality of coated electric wires with a round cross section are arranged in parallel.

[0011] According to the present invention, the wiring structure and rail unit can prevent damage to the wiring caused by the advancement and retreat of the slide sheet. Specifically, since the storage case in which the wiring body is housed is provided separately from the fixed rail, the wiring body routing structure and rail unit can make the opening of the storage case narrower than the opening through which the slider supporting the sliding sheet and the retaining member slide together.

[0012] Furthermore, since the opening of the storage case is opened in any direction between horizontal and downward, the wiring arrangement structure and rail unit can prevent foreign objects from entering the interior of the storage case from above, compared to, for example, a case in which the opening is opened facing upward. As a result, the wiring arrangement structure and rail unit prevent the wiring from sliding against foreign objects inside the accommodating case, thereby preventing damage to the wiring when the sliding sheet moves back and forth.

[0013] The wiring body is composed of a strip-shaped electric wire in which a plurality of conductors are arranged in parallel and covered with a covering material. According to this configuration, the wiring body can be configured with a belt-shaped electric wire having excellent flexibility in the thickness direction, as compared with, for example, a wire harness in which electric wires with round cross sections are bundled together so that the number of conductors is the same. Therefore, the wiring body can bend the belt-shaped electric wire with a smaller bending radius as compared with a wire harness. As a result, the wiring body can make the holding member that holds the belt-shaped electric wire compact even when the belt-shaped electric wire is bent outside the housing case.

[0014] Furthermore, the belt-shaped electric wire is arranged inside the accommodating case such that the thickness direction is substantially vertical. According to this configuration, the wiring structure can reduce the length of the storage case in the vertical direction, and therefore, even when a plurality of ribbon-shaped electric wires are stacked in the thickness direction and stored in the storage case, the wiring structure can prevent the storage case from becoming large.

[0015] As an aspect of the present invention, the holding member may be provided with a protection portion that protects a passing portion of the wiring body that passes through the opening. According to this configuration, the protective portion of the holding member can prevent the wiring from coming into contact with the edge of the opening, and therefore the wiring can be prevented from being damaged by the wiring sliding against the edge of the opening when the holding member slides.

[0016] As a further aspect of the present invention, a guide mechanism may be provided that guides the sliding movement of the protection portion relative to the opening. According to this configuration, the wiring structure can guide the sliding movement of the holding member along the longitudinal direction by the guide mechanism.

[0017] At this time, the guide mechanism prevents the holding member from sliding at an angle relative to the opening direction of the opening, so the wiring body's routing structure can cause the holding member to slide smoothly in accordance with the advancement and retreat of the sliding sheet.

[0018] As a result, the wiring structure for the wiring body can prevent, for example, the wiring body from sliding unintentionally bending inside the housing case due to the wiring body being hindered, and therefore the wiring body can be more effectively prevented from being damaged when the sliding sheet moves back and forth.

[0019] As a further aspect of the present invention, the holding member may be provided inside the storage case so as to protrude from the protective portion, and may be provided with a slip-out prevention portion that prevents the protective portion from slipping out through the opening.

[0020] According to this configuration, the wiring structure can prevent the retaining member from falling off from the opening of the housing case by the fall-off prevention portion provided in the protective portion, and therefore the wiring structure can prevent the wiring from being damaged, such as by bending, due to the retaining member falling off.

[0021] As a further aspect of the present invention, the opening may be formed in the storage case in a horizontal direction. According to this configuration, the wiring structure can shorten the length of the wiring drawn from inside the storage case toward the slide sheet, compared to when the opening is opened downward. As a result, the wiring structure can simplify the shape of the holding member when viewed from the longitudinal direction, thereby preventing the holding member from becoming large.

[0022] As a further aspect of the present invention, the opening may be open downward in the storage case. According to this configuration, the wiring structure can more reliably prevent foreign matter from entering the inside of the accommodating case from above.

[0023] Furthermore, even if a foreign object gets inside the storage case, the wiring structure allows the foreign object to be discharged to the outside of the storage case through the opening. As a result, the wiring arrangement structure can prevent the wiring from sliding against foreign objects inside the accommodating case, thereby further reducing damage to the wiring caused by the sliding sheet moving back and forth.

[0024] 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, the wiring structure can reduce the length of the storage case in the horizontal direction, and therefore, even when a plurality of ribbon-shaped electric wires are stacked in the thickness direction and stored in the storage case, the wiring structure can prevent the storage case from becoming large.

[0025] As a further aspect of the present invention, a metal plate may be disposed inside the storage case along the belt-like electric wire. The metal plate material is, for example, a plate material made of stainless steel spring steel formed into a plate shape with a thickness thinner than that of the ribbon-shaped electric wire.

[0026] According to this configuration, the wiring structure for the wiring body can protect the belt-shaped electric wires with the metal plate material inside the accommodating case, thereby preventing damage to the belt-shaped electric wires due to contact with foreign objects.

[0027] Furthermore, since the wiring structure can support the ribbon-shaped electric wires with a metal plate inside the housing, deformation of the ribbon-shaped electric wires due to the pressure load from the holding member when the holding member slides can be suppressed. As a result, the wiring structure can prevent damage to the ribbon-shaped electric wires due to deformation.

[0028] In addition, for example, when the excess length of the ribbon-shaped electric wire is stored in a curved state in a storage section connected to the housing case, the wiring structure can impart the repulsive force of a metal plate to the curved portion of the excess length.

[0029] Therefore, the wiring structure of the wiring body can maintain the desired wiring state of the ribbon electric wire even if a load caused by the sliding movement of the holding member is applied to the ribbon electric wire, for example, inside the storage section that stores the excess portion.

[0030] As a further aspect of the present invention, within the storage case, the metal plate may be disposed along a side of the ribbon-shaped electric wire on which the opening is located. According to this configuration, the wiring structure can prevent foreign matter that has entered through the opening from directly contacting the ribbon electric wire. Furthermore, since the metal plate is interposed between the inner surface of the housing case and the ribbon electric wire, the wiring structure can prevent damage to the ribbon electric wire due to sliding against the inner surface of the housing case.

[0031] As a further aspect of the present invention, within the storage case, the metal plate may be disposed along a side of the ribbon-shaped electric wire opposite to a side on which the opening is provided. According to this configuration, a metal plate is interposed between the inner surface of the accommodating case and the ribbon-shaped electric wire, so that the wiring body's routing structure can prevent damage to the ribbon-shaped electric wire due to sliding against the inner surface of the accommodating case.

[0032] In a further aspect of the present invention, a protective tube may be provided surrounding the ribbon-shaped electric wire. According to this configuration, the wiring structure can protect the belt-shaped electric wire with the protective tube, and therefore the wiring structure can reliably prevent damage to the belt-shaped electric wire due to contact with a foreign object.

[0033] As another aspect of the present invention, an excess length storage section may be provided which stores an excess portion of the wiring body and pulls the wiring body out or in relative to the accommodating case in response to the sliding movement of the holding member in the longitudinal direction.

[0034] According to this configuration, it is not necessary to provide a space inside the storage case to accommodate the excess length of the wiring, so that the wiring arrangement structure and the rail unit enable the storage case to be made smaller.

[0035] Furthermore, the wiring structure and the rail unit can store the excess length of the wiring in the excess length storage section, so that the excess length of the wiring can be prevented from being exposed to the outside. Therefore, the wiring structure and the rail unit can prevent the excess length of the wiring from being damaged due to contact with a foreign object. Effect of the Invention

[0036] The present invention can provide a wiring structure and a rail unit that can prevent damage to the wiring caused by the advancement and retreat of a slide sheet. [Brief description of the drawings]

[0037] [Figure 1] FIG. 2 is an explanatory diagram illustrating an outline of a rail unit. [Diagram 2] FIG. 4 is a plan view showing the external appearance of the rail unit. [Diagram 3] Cross-sectional view taken along the line AA in FIG. [Figure 4] FIG. 2 is an external perspective view showing the external appearance of the power supply device as viewed from above and in the front direction; [Diagram 5] FIG. 4 is a cross-sectional view showing a cross section of the cable routing body in a longitudinal cross section along the width direction. [Figure 6] FIG. 4 is an external perspective view showing the external appearance of a lead-out portion of the cable routing body. [Figure 7] FIG. 4 is an enlarged cross-sectional view showing a main part in FIG. 3. [Figure 8] FIG. 11 is a cross-sectional view showing a cross section of a storage case and a holding member in a second embodiment. [Figure 9] FIG. 11 is an explanatory diagram illustrating an outline of a storage case and a holding member according to another embodiment. [Figure 10] FIG. 13 is an explanatory diagram illustrating an outline of a power supply device according to another embodiment. [Figure 11] FIG. 13 is a schematic plan view illustrating an excess length storage section according to another embodiment. [Figure 12] FIG. 13 is an explanatory diagram illustrating an outline of a power supply device according to another embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0038] An embodiment of the present invention will now be described with reference to the drawings. EXAMPLES

[0039] In the first embodiment, a rail unit 1 is described with reference to Figures 1 to 7, which is arranged in a vehicle such as an automobile to supply power to a slide sheet that is supported so as to be able to slide back and forth along the longitudinal direction of a fixed rail fixed to the vehicle body.

[0040] Note that Figure 1 is an explanatory diagram outlining the rail unit 1, Figure 2 is a plan view of the rail unit 1, Figure 3 is a cross-sectional view taken along the line AA in Figure 2, and Figure 4 is an external oblique view showing the appearance of the power supply device 5 as viewed from above and in the front.

[0041] Furthermore, Figure 5 shows a cross-sectional view of the cable routing body 11 in a longitudinal section along the width direction Y, Figure 6 shows an external oblique view of the pull-out portion 11c of the cable routing body 11, and Figure 7 shows an enlarged cross-sectional view of a key part (part B) in Figure 3. For clarity of illustration, the sheet-side electric wire connection portion 12 is omitted in FIGS.

[0042] 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).

[0043] 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.

[0044] First, as shown in FIG. 1, the rail unit 1 extends in the fore-and-aft direction X and includes a pair of left and right fixed rails 2 fixed to the body of a vehicle, 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 fore-and-aft direction X.

[0045] Furthermore, the rail unit 1 includes a power supply device 5 that supplies electricity to the slide sheet 4 that is supported so as to be slidable forward and backward along the longitudinal direction of the fixed rail 2, that is, along the front-rear direction X, as shown in FIG.

[0046] 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 Figs. 2 and 3, in a longitudinal 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.

[0047] More specifically, as shown in FIG. 3, the fixed rail 2 is integrally formed with a flat bottom surface portion 2a and a pair of outer side surface portions 2b standing upward from both ends of the bottom surface portion 2a in the width direction Y. Furthermore, as shown in Figure 3, the fixed rail 2 is integrally formed with an upper surface portion 2c extending from the upper end of the outer surface portion 2b toward approximately the center in the width direction Y, and an inner surface portion 2d extending downward from the upper surface portion 2c.

[0048] Due to this configuration, in the fixed rail 2, as shown in FIG. 3, a slit extending in the front-rear direction X is formed in the approximate center in the width direction Y by a pair of inner side surface portions 2d. 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.

[0049] 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.

[0050] 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.

[0051] 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.

[0052] In detail, as shown in Figures 2 and 4, the power supply device 5 includes a first connector 8 that connects the vehicle body side wire harness 6 to the seat side wire harness 7, a first wire harness 9, a vehicle body side electric wire connection portion 10, a cable routing body 11, a seat side electric wire connection portion 12, a second wire harness 13, and a second connector 14.

[0053] Furthermore, as shown in Figures 2 and 4, the power supply device 5 is provided separately from the fixed rail 2, and is equipped with an excess length storage section 15 and a storage case 16 that accommodate the cable arrangement body 11 therein, as well as a holding member 17 that holds the cable arrangement body 11 and is connected to the slider 3.

[0054] 4, one end of the first wire harness 9 is connected to the vehicle body side wire harness 6 via a first connector 8, and the other end is connected to a vehicle body side electric wire connection portion 10. This first wire harness 9 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.

[0055] In addition, as shown in FIG. 4, the vehicle body side electric wire connection portion 10 is held and fixed to the upper surface of the slack storage portion 15, and electrically connects the cable routing body 11 pulled out from inside the slack storage portion 15 to the first wire harness 9.

[0056] Although detailed illustration is omitted, the vehicle body side wire connection portion 10 is composed of a plurality of connection terminals that connect the first wire harness 9 to the flexible flat cable 111 that constitutes the cable routing body 11, a plurality of terminal holders that house and hold the connection terminals, and a connection portion cover that covers the terminal holders fixed to the slack storage portion 15.

[0057] In addition, the cable routing body 11 has one end connected to the first wire harness 9 via a fixed vehicle body side wire connection portion 10, and the other end connected to the second wire harness 13 via a seat side wire connection portion 12.

[0058] As shown in FIG. 2, this cable arrangement body 11 is composed of a main body portion 11a that is pulled out from the slack storage section 15 and arranged inside the storage case 16 so that it can follow the sliding movement of the holding member 17 in the forward / backward direction X, and an slack portion 11b that is stored in the slack storage section 15 in a curved state.

[0059] Specifically, as shown in FIG. 5, the cable arrangement body 11 is composed of a plurality of flexible flat cables 111, two thin metal plates 112 arranged along the flexible flat cables 111, and a mesh tube 113 surrounding these.

[0060] As shown in Figures 5 and 6, the multiple flexible flat cables 111 are configured in sets of, for example, six pieces, and are bundled together with two thin plate materials 112 with adhesive tape 114 (see Figure 6) in a state where they are stacked in the thickness direction of the flexible flat cables 111.

[0061] More specifically, flexible flat cable 111 is formed by arranging rectangular conductors, each having a substantially rectangular cross section, extending in a predetermined direction in parallel, and sandwiching the juxtaposed rectangular conductors between laminate sheets, which are insulating sheets.

[0062] The flexible flat cable 111 is longer than the metal thin plate material 112 and the mesh tube 113 and is formed to a length capable of forming a drawn-out portion 11c drawn out from the storage case 16 towards the slide sheet 4.

[0063] The thin metal plate 112 is made of a metal plate having elasticity and is harder than the flexible flat cable 111, for example, a rust-resistant stainless steel spring steel material. The thin metal plate 112 is formed into a strip-like body having a thickness thinner than that of the flexible flat cable 111.

[0064] As shown in FIG. 5, the two thin plate materials 112 are arranged facing each other in the thickness direction so as to sandwich the flexible flat cable 111 stacked in the thickness direction, and are stacked on the flexible flat cable 111 using an adhesive (not shown).

[0065] The mesh tube 113 is formed into a cylindrical body having elasticity by weaving plastic fibers into a mesh structure. A flexible flat cable 111 and a thin plate material 112, which are laminated in the thickness direction, are inserted inside the mesh tube 113.

[0066] Such a cable arrangement body 11 is accommodated inside the slack storage section 15 and the accommodation case 16 such that the thickness direction of the flexible flat cable 111 coincides with the width direction Y, as shown in FIG. Specifically, as shown in FIG. 5, the cable arrangement body 11 is arranged inside the storage case 16 so that two thin plate materials 112 are positioned on the side of the opening of the storage case 16 (opening 16a of the storage case 16 described later) and the opposite side of the opening of the storage case 16.

[0067] Furthermore, as shown in FIG. 2, the cable routing body 11 is arranged inside a slack length storage section 15 described later in a generally U-shaped state in a plan view protruding rearward from the vehicle body side electric wire connection section 10.

[0068] More specifically, as shown in FIG. 2, the cable arrangement body 11 is arranged inside the slack storage section 15 from the vehicle body side electric wire connection section 10 toward the rear, approximately parallel to the fore-and-aft direction X, and then bent back to one side in the width direction Y and inverted.

[0069] Furthermore, as shown in FIG. 2, the cable arrangement body 11 is arranged approximately parallel to the front-to-rear direction X from the inverted portion toward the front, and then, at the front portion of the slack storage section 15, is bent back to the other side in the width direction Y so as to follow the inner surface of the slack storage section 15.

[0070] Thereafter, the cable arrangement body 11 is arranged approximately parallel to the front-to-rear direction X from the portion bent back to the other side in the width direction Y toward the rear, and is led out from inside the slack storage section 15 to the inside of the storage case 16.

[0071] The cable routing body 11 is drawn out from inside the accommodation case 16 toward the slide seat 4 through an opening 16 a (described later) and connected to a seat-side electric wire connection portion 12 . The pull-out portion 11c, which is pulled out from inside the storage case 16 toward the slide sheet 4, is formed by bending the flexible flat cable 111 downward, which is a direction perpendicular to the front-rear direction X when viewed from the width direction Y, with respect to the main body portion 11a arranged along the front-rear direction X, as shown in FIG.

[0072] In addition, as shown in FIG. 4, the seat-side electric wire connection portion 12 is held and fixed to the upper portion of the holding member 17, and electrically connects the cable routing body 11 pulled out from inside the accommodation case 16 to the second wire harness 13.

[0073] Although detailed illustration is omitted, the seat side wire connection portion 12 is composed of a plurality of connection terminals that connect the first wire harness 9 to the flexible flat cable 111 of the cable routing body 11, a plurality of terminal holders that accommodate and hold the connection terminals, and a connection portion cover that covers the terminal holders fixed to the holding member 17.

[0074] 4, one end of the second wire harness 13 is connected to the seat-side electric wire connection portion 12, and the other end is connected to the seat-side wire harness 7 via a second connector 14. The second wire harness 13 is configured by bundling together a plurality of coated electric wires with a round cross section, each of which has a conductor coated with an insulating coating.

[0075] As shown in FIG. 2, the slack storage section 15 is configured to store the slack portion 11b of the cable arrangement body 11 that does not fit into the storage case 16, and to be able to pull out or retract the cable arrangement body 11 relative to the storage case 16 in response to the sliding movement of the holding member 17 in the forward / backward direction X.

[0076] 4, the slack storage section 15 is a hollow box having a thickness in the up-down direction and is formed in a generally oblong shape in plan view that is long in the front-rear direction X. Furthermore, the slack storage section 15 is disposed adjacent to one side of the fixed rail 2 in the width direction Y, and is fixed to the vehicle body via a support bracket (not shown).

[0077] Although detailed illustration is omitted, the slack storage section 15 has a case that stores the cable arrangement body 11 arranged in a generally U-shape in plan view with the thickness direction aligned with the width direction Y. Furthermore, the slack storage section 15 has, inside the case, a holding section that holds the end of the cable arrangement body 11 near the vehicle body side electric wire connection section 10, a guide section that guides the cable arrangement body 11 when pulled out and pulled in to the storage case 16, and the like.

[0078] 2, the storage case 16 is formed so that the cable routing body 11 introduced from the slack storage section 15 can be routed along the front-rear direction X. As shown in Figs. 2 to 4, the storage case 16 is disposed between the fixed rail 2 and the slack storage section 15, and has a front end connected to the front part of the slack storage section 15. The storage case 16 is fixed to the vehicle body via a support bracket (not shown).

[0079] In detail, as shown in FIG. 2, the storage case 16 is a cylindrical body that is elongated in the front-to-rear direction X and has a generally rectangular shape in a plan view, and is formed to be able to store the cable arrangement body 11 that is pulled out from the slack storage section 15 or pulled into the slack storage section 15 along the front-to-rear direction X.

[0080] As shown in Figures 3 and 4, this storage case 16 is composed of a case body 161 with an open cross-sectional shape extending in the front-to-rear direction X between the fixed rail 2 and the slack storage section 15, and a rear end closing member 162 that closes the opening at the rear end of the case body 161.

[0081] As shown in FIG. 3, in a longitudinal section along the width direction Y, the case body 161 is formed into a generally rectangular shape having a long vertical cross section, with a bottom surface portion 161a and a top surface portion 161b facing each other in the vertical direction, a first side wall portion 161c adjacent to the surplus length storage portion 15, and a second side wall portion 161d and a guide wall portion 161e facing the first side wall portion 161c in the width direction Y.

[0082] 3, the case body 161 is formed with an opening 16a through which the drawn-out portion 11c of the cable routing body 11, which is drawn out from the inside of the storage case 16 toward the slide sheet 4, passes.

[0083] Specifically, as shown in Fig. 3, the bottom surface portion 161a is the portion that becomes the bottom of the case main body 161, and is formed in a substantially flat plate shape having a thickness in the vertical direction. As shown in Fig. 3, the bottom surface portion 161a is disposed at substantially the same vertical position as the bottom surface portion 2a of the fixed rail 2.

[0084] As shown in Fig. 3, upper surface portion 161b is a portion that becomes the top plate of case body 161, and is formed in a flat plate shape having a thickness in the vertical direction. As shown in Fig. 3, this upper surface portion 161b is formed at a position spaced apart in the vertical direction by a distance that is longer than the vertical length of flexible flat cable 111 housed therein (the width of flexible flat cable 111).

[0085] As shown in FIG. 3, the first side wall portion 161c is a portion that forms the side surface of the case main body 161 adjacent to the excess length storage section 15, and is formed in a flat plate shape that connects the edge of the bottom surface portion 161a and the edge of the top surface portion 161b on one side in the width direction Y.

[0086] 3 and 7, the second side wall portion 161d and the guide wall portion 161e are portions that become the side surfaces of the case body 161 adjacent to the fixed rail 2. The second side wall portion 161d and the guide wall portion 161e are formed such that the lower end of the second side wall portion 161d and the upper end of the guide wall portion 161e are spaced apart in the vertical direction by a distance that is slightly longer than a protective portion 17a of the holding member 17, which will be described later.

[0087] 3, the second side wall portion 161d is formed in a flat plate shape extending downward from an edge of the upper surface portion 161b on the other side in the width direction Y. The second side wall portion 161d is formed to have a shorter length in the up-down direction than the first side wall portion 161c.

[0088] As shown in Figures 3 and 7, the guide wall portion 161e is erected upward from the edge of the bottom surface portion 161a on the other side in the width direction Y, with a vertical length such that its upper end is located at a position spaced a predetermined distance downward from the lower end of the second side wall portion 161d.

[0089] As shown in FIG. 7, this guide wall portion 161e constitutes a guide mechanism portion 18 that guides the sliding movement of the holding member 17 in the front-rear direction X together with a guide groove portion 17d of the holding member 17 described later.

[0090] 3 and 7, the opening 16a is formed between the lower end of the second side wall portion 161d and the upper end of the guide wall portion 161e. In other words, the opening 16a is formed in the lower part of the second side wall portion 161d adjacent to the fixed rail 2 and opens toward the width direction Y (horizontal direction). The opening 16a is formed with a length in the front-rear direction X from the front end to the rear end of the case body 161.

[0091] 4, the rear end closing member 162 is attached to the rear end of the case body 161 so as to close the opening in the front-rear direction X at the rear end of the case body 161. The rear end closing member 162 prevents the holding member 17, which moves rearward through the opening 16a, from falling off, and also prevents foreign matter from entering from the rear end of the case body 161.

[0092] As shown in Figures 3 and 4, the holding member 17 is configured to slide in the front-rear direction X through the opening 16a of the storage case 16 in response to the forward and backward movement of the slide sheet 4 in the front-rear direction X, and to hold the pulled-out portion 11c of the cable arrangement body 11 pulled out through the opening 16a.

[0093] As shown in Figure 3, this retaining member 17 is formed in an approximately L-shape when viewed from the front, and is made up of a protective portion 17a that penetrates the opening 16a of the storage case 16 and a retaining main body 17b that extends in the vertical direction between the fixed rail 2 and the storage case 16.

[0094] Specifically, as shown in Figures 3 and 7, the protective portion 17a is a portion that protects the passing portion of the cable routing body 11 passing through the opening 16a, and is formed as a hollow columnar body that extends from the inside of the accommodating case 16 through the opening 16a to the other side in the width direction Y. The protective portion 17a is formed to have a length in the up-down direction that is shorter than the length of the slit in the width direction Y of the fixed rail 2.

[0095] As shown in FIG. 3, this protective portion 17a is positioned inside the storage case 16 so that one end in the width direction Y is located between the cable routing body 11 arranged along the front-rear direction X and the second side wall portion 161d of the storage case 16.

[0096] On the other hand, as shown in Figure 3, the retaining body 17b extends upward from the end of the protective part 17a on the other side of the width direction Y between the fixed rail 2 and the storage case 16, and is formed as a hollow columnar body that communicates with the internal space of the protective part 17a.

[0097] The internal space of the protective portion 17a and the internal space of the holding body 17b are formed as a portion in which the drawn-out portion 11c of the cable arrangement body 11 that passes through the opening 16a and heads toward the slide sheet 4 is arranged. The holding member 17 holds the drawn-out portion 11c of the cable arrangement body 11 arranged inside by an appropriate means.

[0098] As shown in FIG. 7, such a retaining member 17 is provided with a slip-out prevention portion 17c that prevents the protective portion 17a from slipping out from the opening 16a of the storage case 16, and a guide groove portion 17d that forms the guide mechanism portion 18 into which the guide wall portion 161e of the storage case 16 fits loosely.

[0099] 7, the slip-out prevention portion 17c is formed in a flat plate shape standing upward from the upper surface of the protection portion 17a inside the accommodating case 16. The slip-out prevention portion 17c stands upright inside the accommodating case 16 at a position close to the second side wall portion 161d.

[0100] 7, the guide groove portion 17d is recessed upward on the lower surface of the protective portion 17a, and is formed into a groove shape into which the guide wall portion 161e of the storage case 16 can be loosely fitted. The guide groove portion 17d, together with the guide wall portion 161e of the storage case 16, constitutes a guide mechanism portion 18 that guides the sliding movement of the holding member 17 in the front-rear direction X.

[0101] As described above, the cable routing structure of the cable routing body 11 and the rail unit 1 in the first embodiment include the fixed rail 2 that is fixed to the vehicle body and slidably supports the slide seat 4 so that the slide seat 4 can advance and retreat along the longitudinal direction.

[0102] Furthermore, the wiring structure of the cable wiring body 11 and the rail unit 1 are provided with a cable wiring body 11 having one end electrically connected to the vehicle body side wire harness 6 and the other end electrically connected to the seat side wire harness 7, supplying electricity to the sliding seat 4.

[0103] The cable routing structure and rail unit 1 of this cable routing body 11 accommodates the cable routing body 11 therein and is provided with a storage case 16 that is provided separately from the fixed rail 2, and a retaining member 17 that holds the cable routing body 11 that is pulled out to the outside of the storage case 16.

[0104] Furthermore, the storage case 16 is open along the longitudinal direction and has an opening 16a through which the cable arrangement body 11, which is drawn out from the inside of the storage case 16 toward the slide sheet 4, passes.

[0105] In addition, the holding member 17 is configured to slide longitudinally through the opening 16a in response to the longitudinal movement of the sliding sheet 4, and to be capable of holding the cable routing body 11 pulled out through the opening 16a.

[0106] The opening 16a of the storage case 16 is opened in any direction from the horizontal direction to the downward direction of the storage case 16. According to this configuration, the routing structure of the cable routing body 11 and the rail unit 1 can prevent damage to the cable routing body 11 caused by the advancement and retreat of the slide sheet 4.

[0107] Specifically, since the storage case 16 in which the cable routing body 11 is housed is provided separately from the fixed rail 2, the routing structure of the cable routing body 11 and the rail unit 1 can make the opening 16a of the storage case 16 narrower than the opening through which the slider 3 supporting the slide sheet 4 and the retaining member 17 slide together.

[0108] Furthermore, since the opening 16a of the storage case 16 is open in any direction from horizontal to downward, the routing structure of the cable routing body 11 and the rail unit 1 can prevent foreign objects from entering the interior of the storage case 16 from above, compared to, for example, a case in which the opening 16a is open toward the upward direction.

[0109] As a result, the routing structure of the cable routing body 11 and the rail unit 1 prevent the cable routing body 11 from sliding against foreign objects inside the storage case 16, thereby preventing damage to the cable routing body 11 caused by the advancement and retreat of the slide sheet 4.

[0110] The holding member 17 is provided with a protection portion 17a that protects the portion passing through the opening 16a in the cable routing body 11. According to this configuration, the routing structure of the cable routing body 11 can prevent contact between the edge of the opening 16a and the cable routing body 11 by the protective portion 17a of the holding member 17.

[0111] Therefore, the routing structure of the cable routing body 11 can prevent damage to the cable routing body 11 caused by sliding between the cable routing body 11 and the edge of the opening 16a when the holding member 17 slides.

[0112] The cable routing structure of the cable routing body 11 is provided with a guide mechanism 18 that guides the sliding movement of the protective portion 17a relative to the opening 16a. According to this configuration, the routing structure of the cable routing body 11 can guide the sliding movement of the holding member 17 along the longitudinal direction by the guide mechanism 18.

[0113] At this time, the guide mechanism 18 prevents the retaining member 17 from sliding at an angle relative to the opening direction of the opening 16a, so that the routing structure of the cable routing body 11 can cause the retaining member 17 to slide smoothly in accordance with the advancement and retreat of the slide sheet 4.

[0114] As a result, the routing structure of the cable routing body 11 can prevent, for example, the sliding of the cable routing body 11 from being hindered inside the housing case 16, and can prevent the cable routing body 11 from unintentionally bending. Therefore, the routing structure of the cable routing body 11 can further prevent damage to the cable routing body 11 caused by the advancement and retreat of the slide sheet 4.

[0115] The holding member 17 is provided inside the storage case 16 so as to protrude from the protective portion 17a, and is provided with a slip-out prevention portion 17c that prevents the protective portion 17a from slipping out from the opening 16a.

[0116] According to this configuration, the routing structure of the cable routing body 11 can prevent the holding member 17 from falling off from the opening 16a of the housing case 16 by the fall-off prevention portion 17c provided on the protective portion 17a. Therefore, the routing structure of the cable routing body 11 can prevent the cable routing body 11 from being damaged, such as by bending, due to the holding member 17 falling off.

[0117] The opening 16a is an opening in the storage case 16 in the horizontal direction. According to this configuration, the routing structure of the cable routing body 11 can shorten the length of the cable routing body 11 pulled out from inside the storage case 16 toward the slide sheet 4, compared to a case in which the opening 16a is opened downward. As a result, the routing structure of the cable routing body 11 can simplify the shape of the holding member 17 when viewed in the longitudinal direction, thereby preventing the holding member 17 from becoming large.

[0118] The cable arrangement body 11 is configured with a flexible flat cable 111 in which a plurality of conductors are arranged in parallel and are covered with a covering material. According to this configuration, the wiring structure of the cable routing body 11 can be configured using a flexible flat cable 111 that has excellent flexibility in the thickness direction, compared to, for example, a wire harness in which round cross-sectional electric wires are bundled together so that the number of conductors is the same.

[0119] Therefore, the routing structure of the cable routing body 11 allows the flexible flat cable 111 to be bent with a smaller bending radius than a wire harness or the like. As a result, the routing structure of the cable routing body 11 can make the holding member 17 that holds the flexible flat cable 111 compact even when the flexible flat cable 111 is bent outside the accommodating case 16.

[0120] Furthermore, the flexible flat cable 111 may be disposed inside the housing 16 so that the thickness direction is substantially horizontal (width direction Y). According to this configuration, the routing structure of the cable routing body 11 can reduce the length of the housing case 16 in the width direction Y.

[0121] Therefore, the routing structure of the cable routing body 11 can prevent the storage case 16 from becoming large even when multiple flexible flat cables 111 are stacked in the thickness direction and stored in the storage case 16.

[0122] Inside the container case 16 , a thin metal plate 112 is disposed along the flexible flat cable 111 . According to this configuration, the routing structure of the cable routing body 11 can protect the flexible flat cable 111 with the metal thin plate material 112 inside the accommodating case 16, thereby preventing damage to the flexible flat cable 111 due to contact with foreign objects.

[0123] Furthermore, the routing structure of the cable routing body 11 can support the flexible flat cable 111 by the thin plate material 112 inside the housing case 16, so that deformation of the flexible flat cable 111 due to the pressure load from the holding member 17 when the holding member 17 slides can be suppressed. As a result, the routing structure of the cable routing body 11 can prevent damage to the flexible flat cable 111 due to deformation.

[0124] In addition, when the excess length portion 11b of the flexible flat cable 111 is stored in a curved state in the excess length storage section 15 connected to the housing case 16, the routing structure of the cable routing body 11 can impart the repulsive force of the thin plate material 112 to the curved portion of the excess length portion 11b.

[0125] Therefore, the routing structure of the cable routing body 11 can maintain the desired routing state of the flexible flat cable 111 even when a load associated with the sliding movement of the holding member 17 is applied to the flexible flat cable 111 inside the slack storage section 15.

[0126] Inside the housing case 16, the metal thin plate material 112 is disposed along the side of the flexible flat cable 111 where the opening 16a is located. According to this configuration, the routing structure of the cable routing body 11 can prevent a foreign object that has entered through the opening 16a from directly contacting the flexible flat cable 111.

[0127] Furthermore, since a thin metal plate material 112 is interposed between the inner surface of the accommodating case 16 and the flexible flat cable 111, the routing structure of the cable routing body 11 can prevent damage to the flexible flat cable 111 due to sliding against the inner surface of the accommodating case 16.

[0128] Inside the housing case 16, the metal thin plate material 112 is disposed along the side of the flexible flat cable 111 opposite to the side where the opening 16a is provided. According to this configuration, a thin metal plate material 112 is interposed between the inner surface of the accommodating case 16 and the flexible flat cable 111, so that the routing structure of the cable routing body 11 can prevent damage to the flexible flat cable 111 due to sliding against the inner surface of the accommodating case 16.

[0129] The cable routing body 11 has a routing structure in which a mesh tube 113 surrounding the flexible flat cable 111 is provided. According to this configuration, the routing structure of the cable routing body 11 can protect the flexible flat cable 111 with the mesh tube 113. Therefore, the routing structure of the cable routing body 11 can reliably prevent damage to the flexible flat cable 111 due to contact with a foreign object.

[0130] In addition, the routing structure of the cable routing body 11 and the rail unit 1 are provided with an excess length storage section 15 which stores the excess portion 11b of the cable routing body 11 and pulls out or retracts the cable routing body 11 relative to the storage case 16 in response to the longitudinal sliding movement of the holding member 17.

[0131] According to this configuration, it is unnecessary to provide space inside the accommodating case 16 to accommodate the excess portion 11b of the cable routing body 11, so that the routing structure of the cable routing body 11 and the rail unit 1 can facilitate the miniaturization of the accommodating case 16.

[0132] Furthermore, the routing structure of the cable routing body 11 and the rail unit 1 can store the slack portion 11b of the cable routing body 11 in the slack storage section 15, and therefore can prevent the slack portion 11b of the cable routing body 11 from being exposed to the outside. Therefore, the routing structure of the cable routing body 11 and the rail unit 1 can prevent the slack portion 11b of the cable routing body 11 from being damaged due to contact with a foreign object.

[0133] In addition, since the storage case 16 and the slack storage section 15 are configured separately, the routing structure of the cable routing body 11 and the rail unit 1 can combine an appropriate slack storage section with the storage case 16 depending on the space around the fixed rail 2 and the sliding amount of the slide sheet 4. Therefore, the routing structure of the cable routing body 11 and the rail unit 1 can reduce the number of parts. EXAMPLES

[0134] The rail unit of the second embodiment includes a storage case 16 having an opening in a direction different from that of the first embodiment. The storage case 16 and the holding member 19 that slides through the opening of the storage case 16 will be described with reference to FIG. 8, which shows a cross-sectional view of the storage case 16 and the holding member 19 in the second embodiment. The same components as those in the first embodiment are given the same reference numerals and detailed description thereof will be omitted.

[0135] As shown in FIG. 8, in a longitudinal cross section along the width direction Y, the storage case 16 of the second embodiment has a case body 163 having an open cross-sectional shape extending in the front-rear direction X, and is formed into a generally rectangular cross-section that is long in the up-down direction, similar to the first embodiment.

[0136] Furthermore, as shown in FIG. 8, the case body 163 has an opening 16b facing downward, through which the drawn-out portion 11c of the cable routing body 11, which is drawn out from inside the storage case 16 toward the slide sheet 4, passes.

[0137] Specifically, as shown in FIG. 8, the case body 163 of the storage case 16 is composed of an upper surface portion 163a, a first side wall portion 163b and a second side wall portion 163c vertically extending from both ends of the upper surface portion 163a in the width direction Y, and a bottom surface portion 163d and a guide wall portion 163e that face downwardly relative to the upper surface portion 163b.

[0138] The upper surface portion 163a and the first side wall portion 163b have the same configuration as the upper surface portion 161b and the first side wall portion 161c of the above-described first embodiment, and therefore a detailed description thereof will be omitted. As shown in FIG. 8, the second side wall portion 163c extends downward from the upper surface portion 163a with the same vertical length as the first side wall portion 163b.

[0139] In addition, as shown in FIG. 8, the bottom surface portion 163d and the guide wall portion 163e are formed such that an end of the bottom surface portion 163d and an end of the guide wall portion 161e are spaced apart in the width direction Y by a distance slightly longer than the protective portion 19a of the holding member 19. More specifically, as shown in FIG. 8, the bottom surface portion 163d has a length in the width direction Y that is shorter than that of the top surface portion 163a, and extends from the lower end of the first side wall portion 163b toward the second side wall portion 163c.

[0140] As shown in FIG. 8, the guide wall portion 163e extends from the lower end of the second side wall portion 163c toward the first side wall portion 163b with a length in the width direction Y such that its end is located at a predetermined distance in the width direction Y from the end of the bottom surface portion 163d on the other side of the width direction Y. The guide wall portion 163e constitutes a guide mechanism portion 20 that guides the sliding movement of the holding member 19 in the front-rear direction X together with a guide groove portion 19e of the holding member 19 described later.

[0141] 3, the opening 16b is formed between an end of the bottom surface portion 163d and an end of the guide wall portion 163e. In other words, the opening 16b is formed in the lower portion of the storage case 16 so as to open downward.

[0142] In addition, the holding member 19 of the second embodiment is configured to slide in the front-rear direction X through the opening 16b of the storage case 16 in response to the forward and backward movement of the slide sheet 4 in the front-rear direction X, and to hold the drawn-out portion 11c of the cable arrangement body 11 drawn out through the opening 16b.

[0143] As shown in Figure 8, this retaining member 19 is composed of a protective portion 19a that penetrates the opening 16b of the storage case 16, an extension portion 19b that extends in the width direction Y below the storage case 16, and a retaining main body 19c that extends in the vertical direction between the fixed rail 2 and the storage case 16.

[0144] Similarly to the holding member 17 of the first embodiment, the holding member 19 holds therein the drawn-out portion 11c of the cable routing body 11 which passes through the opening 16b and heads toward the slide sheet 4. Specifically, as shown in FIG. 8, the protective portion 19a is formed in a hollow columnar body that extends downward from the inside of the housing case 16 through the opening 16b.

[0145] As shown in FIG. 8, the extension portion 19b extends from the lower end of the protection portion 19a toward the other side in the width direction Y, and is formed as a hollow columnar body that communicates with the internal space of the protection portion 19a. As shown in FIG. 8, the holding body 19c extends upward from the end of the extension portion 19b on the other side in the width direction Y, and is formed as a hollow columnar body that communicates with the internal space of the extension portion 19b.

[0146] As shown in FIG. 8, such a retaining member 19 is provided with a slip-out prevention portion 19d that prevents the protective portion 19a from slipping out from the opening 16b of the accommodating case 16, and a guide groove portion 19e into which the guide wall portion 163e of the accommodating case 16 fits loosely.

[0147] 8, the slip-out prevention portion 19d is formed in a flat plate shape extending from the upper end of the protection portion 19a toward the first side wall portion 163b inside the housing case 16. The slip-out prevention portion 19d is erected inside the housing case 16 at a position close to the bottom surface portion 163d.

[0148] 8, the guide groove 19e is formed by recessing the side surface of the protection part 19a facing the first side wall part 161c toward the second side wall part 163c, and is formed in a groove shape into which the guide wall part 163e can be loosely fitted. The guide groove part 19e, together with the guide wall part 163e of the storage case 16, constitutes a guide mechanism part 20 that guides the sliding movement of the holding member 19 in the front-rear direction X.

[0149] As described above, the cable routing structure of the cable routing body 11 and the rail unit 1 of the second embodiment can prevent foreign matter from entering the inside of the storage case 16 from above, thereby achieving the same effects as those of the first embodiment described above.

[0150] Furthermore, since the opening 16b is open downward in the housing case 16, the routing structure of the cable routing body 11 can more reliably prevent foreign matter from entering the inside of the housing case 16 from above.

[0151] In addition, even if a foreign object enters the inside of the storage case 16, the routing structure of the cable routing body 11 can discharge the foreign object to the outside of the storage case 16 through the opening 16b. As a result, the routing structure of the cable routing body 11 can prevent the cable routing body 11 from sliding against foreign objects inside the storage case 16, thereby further reducing damage to the cable routing body 11 caused by the advancement and retreat of the slide sheet 4.

[0152] 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 wiring body corresponds to the cable wiring body 11, The longitudinal direction corresponds to the front-rear direction X, The ribbon wire corresponds to the flexible flat cable 111. The metal plate corresponds to the thin plate 112. The protective tube corresponds to the mesh tube 113, The present invention is not limited to the configurations of the above-described embodiments, and many other embodiments can be obtained.

[0153] 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.

[0154] In addition, the first wire harness 9 and the second wire harness 13 are made up of multiple 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 11 via a connection terminal.

[0155] In addition, in the vehicle body side electric wire connection portion 10, the flexible flat cable 111 and the first wire harness 9 are connected via a connection terminal, but this is not limited thereto. For example, the flexible flat cable 111 and the first wire harness 9 may be connected via a bus bar. Similarly, in the seat-side electric wire connection portion 12, the flexible flat cable 111 and the second wire harness 13 may be connected via a bus bar.

[0156] In addition, the cable arrangement body 11 is configured with a plurality of flexible flat cables 111, two thin plate materials 112, and a mesh tube 113, but is not limited thereto, and may be a cable arrangement body configured with at least one flexible flat cable 111. Alternatively, the cable arrangement body may be configured with at least one flexible flat cable 111 and one thin plate material 112. In this case, the thin plate material 112 is disposed either on the opening 16a side of the housing case 16 or on the opposite side of the opening 16a of the housing case 16.

[0157] Further, although the flexible flat cable 111 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 17 is connected to the slider 3 in the power supply device 5 . However, the present invention is not limited to this. The holding member may be connected to the lower surface of the sliding sheet 4 in the power supply device.

[0158] In addition, the cable routing body 11 is arranged so that the thickness direction of the flexible flat cable 111 is approximately horizontal (width direction Y) inside the housing case 16, but this is not limiting. For example, as shown in Fig. 9(a) which shows an explanatory diagram illustrating an outline of a housing case and a holding member in another embodiment, the cable routing body 11 may be arranged so that the thickness direction of the flexible flat cable is approximately vertical (up-down direction) inside the housing case 21.

[0159] In this case, the container case 21 is formed so that the cross-sectional shape in a vertical cross section along the width direction Y is a substantially rectangular shape that is long in the width direction Y, as shown in FIG. 9(a). As a result, the routing structure of the cable routing body 11 can reduce the length of the accommodating case 21 in the vertical direction. Therefore, even when a plurality of flexible flat cables are stacked in the thickness direction and accommodated in the accommodating case 21, the routing structure of the cable routing body 11 can prevent the accommodating case 21 from becoming large.

[0160] In addition, in Example 1, the opening 16a is open toward the width direction Y, and in Example 2, the opening 16b is open toward the downward direction, but this is not limited to this, and the opening may be opened in any direction from the horizontal direction to the downward direction.

[0161] In the first embodiment, the guide mechanism 18 is formed by the guide wall 161e of the case body 161 standing upward and the guide groove 17d of the holding member 17 recessed upward, but this is not limiting. For example, as shown in FIG. 9(a), the guide mechanism 23 may be constituted by a second side wall portion 212 of the storage case 21 which forms an opening 21a together with the bottom surface portion 211, and a guide groove portion 22b recessed into the upper surface of the protective portion 22a of the holding member 22.

[0162] Furthermore, as the guide mechanism 23, for example, as shown in FIG. 9(a), a sliding member 24 having a low friction coefficient may be interposed between the bottom surface 211 of the storage case 21 and the protective portion 22a of the holding member 22.

[0163] Furthermore, in addition to the opening 16a through which the holding member 17 slides, the storage case 16 may have an outlet 16c in the case body 161 for discharging foreign matter that has entered the inside, as shown in FIG. 9(b).

[0164] 9(b), for example, the bottom surface 161a of the case body 161 is formed as an inclined surface that is inclined so that one end is positioned lower than the other end in the width direction Y. This allows the storage case 16 to efficiently and smoothly expel any foreign matter that may have entered the interior.

[0165] In addition, the slack storage section 15 and the storage case 16 are arranged side by side in the width direction Y, and the front end of the storage case 16 is connected to the front part of the slack storage section 15, but this is not limited to this as long as the cable routing body can move back and forth between the slack storage section and the storage case.

[0166] For example, as shown in Figure 10(a), which is an explanatory diagram outlining a power supply device in another embodiment, the storage case 16 may be positioned rearward of the slack storage section 25 whose thickness direction is aligned with the vertical direction, and the front end of the storage case 16 may be connected to the rear end of the slack storage section 25.

[0167] Alternatively, as shown in FIG. 10(b), a configuration may be used in which an extra length storage section 15 whose thickness direction coincides with the width direction Y is arranged below the storage case 21 in parallel. In this case, the cable routing body 11 is routed inside the slack storage section 15 and the storage case 21 with the thickness direction aligned with the up-down direction. Furthermore, the storage case 21 is formed so that the cross-sectional shape in a vertical section along the width direction Y is a substantially rectangular shape that is long in the width direction Y.

[0168] In addition, the slack storage section 15 stores the cable arrangement body 11 that is arranged in an approximately U-shaped state when viewed in a plane, but this is not limited to this, and the slack storage section connected to the housing case 16 may be of any appropriate configuration.

[0169] 11 showing an explanatory diagram for explaining an outline of the slack storage section in another embodiment in a plan view, the slack storage section 26 may be configured to store the slack portion 11b of the cable arrangement body 11 whose thickness direction coincides with the width direction Y in a state where the slack portion 11b is wound spirally in a plan view. In this case, the slack storage section 26 may be provided therein with a spiral spring for winding up the cable arrangement body 11.

[0170] The slack storage section 26, which stores the cable routing body 11 by winding it in a spiral shape, may be arranged so that the thickness direction of the cable routing body 11 is the width direction Y, as shown in Figure 12(a), which is an explanatory diagram illustrating the outline of a power supply device in another embodiment, and may be connected to the front end of a storage case 16 that is elongated in the vertical direction and has a generally rectangular cross-section.

[0171] Alternatively, the slack storage section 26, which stores the cable routing body 11 by winding it in a spiral shape, may be arranged so that the thickness direction of the cable routing body 11 is the vertical direction, as shown in Figure 12(b), and connected to the front end of the storage case 21, which has a generally rectangular cross-section and is elongated in the width direction Y. [Explanation of symbols]

[0172] 1...Rail unit 2…Fixed rail 4. Slide sheet 6…Vehicle body side wire harness 7…Seat side wire harness 11…Cable wiring body 11b...Extra length part 15, 25, 26…Excess length storage section 16,21…Storage case 16a, 16b, 21a...opening 17, 19, 22...Retaining members 17a, 19a, 22a…protection section 17c, 19d…Prevention of slipping out 18, 20, 23...Guide mechanism 111...Flexible flat cable 112...Thin plate material 113…Mesh tube X…Anteroposterior direction

Claims

1. A wiring 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, the wiring structure having one end electrically connected to a vehicle body-side electric wire and the other end electrically connected to a seat-side electric wire, a housing case that houses the wiring body therein and is provided separately from the fixed rail; a holding member for holding the wiring body that is drawn out to the outside of the housing case, The storage case includes: an opening is formed along the longitudinal direction, through which the wiring body passes and which is drawn from inside the housing case toward the slide sheet; The holding member is the sliding sheet is configured to slide in the longitudinal direction through the opening in response to the advancement and retreat of the sliding sheet in the longitudinal direction, and to be able to hold the wiring body drawn out through the opening, The opening of the storage case is The container case is opened in any direction from the horizontal direction to the downward direction, The wiring body is The cable is made up of a ribbon-shaped electric wire in which a plurality of conductors are arranged in parallel and covered with a covering material, The ribbon-shaped electric wire is A thickness direction of the storage case is substantially vertical. The wiring structure.

2. A metal plate is disposed inside the housing along the electric wire. The wiring structure according to claim 1 .

3. Inside the housing, the metal plate is disposed along the side of the ribbon-shaped electric wire where the opening is located. The wiring structure according to claim 2 .

4. Inside the housing, the metal plate is disposed along the opposite side of the belt-shaped electric wire to the side where the opening is located. The wiring structure according to claim 2 or 3.

5. A protective tube is provided surrounding the ribbon-shaped electric wire.

5. The wiring structure according to claim 1.

6. The holding member is A protection portion is provided to protect a passing portion of the wiring body passing through the opening. The wiring structure according to any one of claims 1 to 5.

7. A guide mechanism is provided to guide the sliding movement of the protection part relative to the opening. The wiring structure according to claim 6 .

8. The holding member is A slip-out prevention portion is provided inside the storage case, protruding from the protective portion and preventing the protective portion from slipping out of the opening. The wiring structure according to claim 6 or 7.

9. The opening is opened horizontally in the storage case. The wiring structure according to any one of claims 1 to 8.

10. The opening is open downward in the storage case. The wiring structure according to any one of claims 1 to 8.

11. A slack storage section is provided for storing a slack portion of the wiring body and for pulling the wiring body out or in with respect to the housing case in response to the sliding movement of the holding member in the longitudinal direction. The wiring structure according to any one of claims 1 to 10.

12. A fixed rail that is fixed to a vehicle body and supports the slide seat so that the slide seat can move forward and backward along a longitudinal direction; a wiring body having one end electrically connected to a vehicle body side electric wire and the other end electrically connected to a seat side electric wire, the wiring body supplying electricity to the sliding seat; a housing case that houses the wiring body therein and is provided separately from the fixed rail; a holding member for holding the wiring body that is drawn out to the outside of the housing case, The storage case includes: an opening is formed along the longitudinal direction, through which the wiring body passes and which is drawn from inside the housing case toward the slide sheet; The holding member is the sliding sheet is configured to slide in the longitudinal direction through the opening in response to the advancement and retreat of the sliding sheet in the longitudinal direction, and to be able to hold the wiring body drawn out through the opening, The opening of the storage case is The container case is opened in any direction from the horizontal direction to the downward direction, The wiring body is The cable is made up of a ribbon-shaped electric wire in which a plurality of conductors are arranged in parallel and covered with a covering material, The ribbon-shaped electric wire is A thickness direction of the storage case is substantially vertical. Rail unit.

13. A slack storage section is provided for storing a slack portion of the wiring body and for pulling the wiring body out or in with respect to the housing case in response to the sliding movement of the holding member in the longitudinal direction. The rail unit according to claim 12.

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