Seat power supply device

Abstract

To provide a power supply device for seat capable of saving the space of a case.SOLUTION: In a power supply device 1 for seat, a case 2 has a first guide part 2a and a second guide part 2b which extend in the same extending direction, are arranged at an interval in a direction crossing the extending direction, and guide a part of a routing material 5 in the middle of the routing material 5. The routing material 5 consists of a plurality of power supply wires W, a belt-like member 30, and a holding member 31 which makes the belt-like member 30 hold the power supply wires W in conformity with shape change of the belt-like member 30. The belt-like member 30 is formed extending in the extending direction and also curving in part when viewed from the extending direction as well as what is called a steel tape measure (convex). The routing material 5 has a first linear part 5a which extends from the first guide part 2a in the extending direction, a second linear part 5b which extends from the second guide part 2b in the extending direction, and a folded-back part 5c which is folded back from an end part of the first linear part 5a in the extending direction and connected to an end part of the second linear part 5b in the extending direction.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a power supply device for a seat. [Background technology]

[0002] Conventionally, vehicles such as automobiles are equipped with sliding seats that slide freely on slide rails fixed to the vehicle body. When electrical components are provided on the sliding seats, a power supply device is used to supply power to the electrical components from a power source such as a battery mounted on the vehicle. The power supply device includes, for example, a wire harness for electrically connecting the power source and the electrical components, and a case for accommodating a portion of the wire harness. For example, known power supply devices have a structure in which the wire harness is accommodated in or pulled out of a case in accordance with the movement of the sliding seat or sliding door (see, for example, Patent Documents 1 and 2), and a wire harness that is routed between the sliding door and the vehicle body and has an appropriate bending direction and amount (see, for example, Patent Document 3). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2001-171443 [Patent Document 2] Japanese Patent Application Laid-Open No. 2002-315168 [Patent Document 3] Japanese Patent Application Laid-Open No. 2017-79555 Summary of the Invention [Problem to be solved by the invention]

[0004] In a conventional power supply device, for example, a corrugated tube with a wire harness inserted therethrough is accommodated in a long case in a U-shaped bent state to absorb the excess length of the wire harness. Therefore, it is necessary to provide a mounting space for the case on the vehicle body side to accommodate the excess length of the wire harness, and therefore, it is desirable to reduce the space required for the case.

[0005] An object of the present invention is to provide a power supply device for a seat that can reduce the space required for the case. [Means for solving the problem]

[0006] In order to achieve the above object, the seat power supply device of the present invention includes a wiring material having at least a portion of one end connected to a power receiving destination mounted on a seat supported so as to be slidable in a sliding direction relative to a vehicle body and at least a portion of the other end connected to a power transmitting source that transmits power to the power receiving destination, and a case that accommodates a portion of the wiring material, wherein the case has a first guide portion and a second guide portion that guide a portion of the wiring material in a guiding direction along the wiring material, and the first guide portion and the second guide portion are arranged so that the guiding direction is the same direction and are spaced apart in a direction perpendicular to the guiding direction. the wiring material is composed of one or more power feeders, a belt-shaped member that is formed to extend in an extension direction and that is formed to be at least partially curved when viewed from the extension direction and is elastically deformable at least in a plate thickness direction perpendicular to the extension direction, and a holding member that holds the power feeders on the belt-shaped member so that the holding member follows the shape change of the belt-shaped member, and has a first straight portion that extends from the first guide portion in the extension direction, a second straight portion that extends from the second guide portion in the extension direction, and a folded portion that is folded back from an end of the first straight portion in the extension direction and is connected to an end of the second straight portion in the extension direction. The first straight portion, the second straight portion, and the folded portion of the wiring material are exposed to the outside of the case from the first guide portion and the second guide portion as the seat slides. It is characterized by: [Effects of the Invention]

[0007] The power supply device for a seat according to the present invention has an effect of enabling space saving of the case. [Brief explanation of the drawings]

[0008] [Figure 1] FIG. 1 is a perspective view showing a schematic configuration of a power supply device for a seat according to an embodiment. [Figure 2] FIG. 2 is an exploded perspective view showing a schematic configuration of the seat power supply device according to the embodiment. [Figure 3] FIG. 3 is a plan view showing the movement of the wiring material in the seat power supply device. [Figure 4] FIG. 4 is a cross-sectional view taken along line AA showing a schematic configuration of the wiring material in FIG. [Figure 5] FIG. 5 is a cross-sectional view showing a schematic configuration of a wiring material according to a modified example of the embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0009] Hereinafter, embodiments of a seat power supply device according to the present invention will be described in detail with reference to the drawings. Note that the present invention is not limited to the following embodiments. That is, the components in the following embodiments include those that a person skilled in the art would easily imagine or that are substantially the same, and various omissions, substitutions, and modifications can be made without departing from the spirit of the invention.

[0010] [Embodiment] 1 to 3 is mounted on a vehicle (not shown) such as an automobile, and transmits power (including supplying power and transmitting signals) from a power source in the vehicle to a power destination in a sliding seat (not shown). The power source is, for example, a power source such as a battery or an ECU (Electronic Control Unit) mounted on the vehicle. The power destination is, for example, electrical components provided on the sliding seat, such as a seat heater, speaker, and LCD monitor.

[0011] The seat power supply device 1 of this embodiment is fixed to the vehicle body together with a slide rail 100 shown in FIG. 1 . The slide rail 100 is interposed between the vehicle body and the slide seat and supports the slide seat so that it can slide relative to the vehicle body in a sliding direction. Here, the sliding direction is, for example, the longitudinal direction of the vehicle. The slide rail 100 has a rail body 101 and a rail-side opening 101a. The rail body 101 is formed to extend in the sliding direction. The rail-side openings 101a are provided at both ends of the rail body 101 in the sliding direction. As shown in the figure, the seat power supply device 1 is connected to the slide rail 100 with a portion inserted into the rail-side opening 101a at one end of the slide rail 100 in the sliding direction. Note that slide rails 100 are generally provided in a pair spaced apart in the width direction of the vehicle. However, in this embodiment, only one of the pair of slide rails 100 will be described, and a description of the other slide rail will be omitted. The seat power supply device 1 of this embodiment includes a case 2 and a wiring material 5.

[0012] Here, the illustrated X direction is along the sliding direction of the sliding seat and is the guide direction of the seat power supply device 1 in this embodiment. One of the X directions, the X1 direction, is the first guide direction, and the X2 direction is the second guide direction. The Y direction is the width direction of the seat power supply device 1 in this embodiment and is a direction perpendicular to the guide direction. The Z direction is the up-down direction of the seat power supply device 1 and is a direction perpendicular to the guide direction and the width direction. Note that the sliding direction is, for example, along the front-to-rear direction of the vehicle when the seat power supply device 1 is fixed to the vehicle body. The width direction is, for example, along the width direction of the vehicle in the fixed state. The up-down direction is, for example, along the vertical direction in the fixed state.

[0013] The case 2 accommodates a portion of the wiring material 5. The case 2 is molded from, for example, a synthetic resin material. The case 2 is located below the slide rail 100 in the up-down direction perpendicular to the sliding direction, and is arranged along the slide rail 100 parallel to the sliding direction. The case 2 is connected to one end of the slide rail 100 in the sliding direction (the X2 direction in the figure) while being offset downward. The case 2 has a bracket 3 protruding downward from the lower end of the case 2. With the case 2 fixed to the slide rail 100, the case 2 is fixed to the vehicle body via the bracket 3 with fastening members such as bolts. The case 2 of this embodiment has a configuration that restricts the position and movement of a portion of the wiring material 5 and has a first guide portion 2a, a second guide portion 2b, a third guide portion 2c, and a connecting portion 2d.

[0014] The first guide portion 2a and the second guide portion 2b are portions that guide a portion of the wiring material 5 in the guide direction along the wiring material 5. This guide direction is along the guide direction of the seat power supply device 1. The first guide portion 2a and the second guide portion 2b have the same guide direction and are spaced apart in a direction perpendicular to the guide direction. The same guide direction means that the guide directions are the same, and in this case refers to the first guide direction in the guide direction. The direction perpendicular to the guide direction also includes a direction approximately perpendicular to the guide direction and is along the vertical direction of the seat power supply device 1. Therefore, the first guide portion 2a and the second guide portion 2b are formed in the case 2 with a gap in the vertical direction. The first guide portion 2a and the second guide portion 2b are formed to extend in the guide direction, and the wiring material 5 is inserted therethrough.

[0015] The first guide portion 2a is located above the second guide portion 2b and is integrally connected to the second guide portion 2b in the up-down direction via a connecting portion 2d. The first guide portion 2a has a case-side first opening 20 at its end in the second guide direction. The second guide portion 2b has an end in the second guide direction that is integrally connected to the third guide portion 2c. The third guide portion 2c is formed in a U-shape when viewed from the width direction perpendicular to the guide direction. The third guide portion 2c has a case-side third opening 22 at its end in the guide direction.

[0016] The case-side first opening 20 is open toward the second guide direction. When viewed from the second guide direction, the case-side first opening 20 is formed in a rectangular shape and has a size that matches the cross-sectional size of one wiring material 5.

[0017] The case-side second opening 21 is provided at the end of the case 2 on the guide direction side and opens toward the guide direction side. The case-side second opening 21 is formed in a rectangular shape when viewed from the guide direction, but is larger than both the case-side first opening 20 and a case-side third opening 22 described below.

[0018] The case-side third opening 22 is open toward the guide direction side. When viewed from the guide direction, the case-side third opening 22 is formed in a rectangular shape and has a size that matches the cross-sectional size of one wiring material 5.

[0019] The case 2 has a structural configuration including a case body 10, a cover 11, and a housing space portion 23 in which a part of the wiring material 5 is housed.

[0020] The case body 10 accommodates a portion of the wiring material 5 therein. The portions of the case body 10 corresponding to the first guide portion 2a, the second guide portion 2b, and the third guide portion 2c of the case 2 are each formed in a groove shape that opens to one side in the width direction. As shown in FIG. 3, the case body 10 has a body-side bracket 10a and a body-side mounting hole 10b at its lower end. The body-side bracket 10a constitutes a portion of the bracket 3 of the case 2. The body-side mounting hole 10b is a through-hole that penetrates the body-side bracket 10a in the plate thickness direction, and a fastening member is inserted through the body-side mounting hole 10b when the case 2 is fixed to the slide rail 100.

[0021] The cover 11 is disposed on one side of the case body 10 in the width direction. When viewed in the width direction, the cover 11 has substantially the same shape as the case body 10, and as shown in FIG. 2, closes the case-side fourth opening 24 in the case body 10. As shown in FIG. 2, the cover 11 has a cover-side bracket 11a and a cover-side mounting hole 11b at its lower end. The cover-side bracket 11a constitutes another part of the bracket 3 in the case 2. The cover-side mounting hole 11b is a through-hole that passes through the cover-side bracket 11a in the plate thickness direction, and a fastening member is inserted through the cover-side mounting hole 11b when the case 2 is fixed to the slide rail 100.

[0022] In a closed state in which the cover 11 closes the case-side fourth opening 24, the storage space 23 communicates with the outside via the case-side first opening 20, the case-side second opening 21, and the case-side third opening 22. In a stored state in which a portion of the wiring material 5 is stored in the storage space 23 inside the case 2, the case-side first opening 20, the case-side second opening 21, and the case-side third opening 22 all lead the wiring material 5 to the outside.

[0023] As the sliding seat moves in the sliding direction (hereinafter also referred to as "sliding movement"), the portion of the wiring material 5 housed in the housing space 23 within the case 2 slides within the case 2. A portion of the wiring material 5 that was housed within the case in a conventional seat power supply device is exposed to the outside of the case 2. The wiring material 5 exposed to the outside from the case side first opening 20 is routed toward the power transmission source described above. The wiring material 5 exposed to the outside from the case side third opening 22 is routed through the inside of the slide rail 100 toward the power receiving destination in the sliding seat. The wiring material 5 exposed to the outside from the case side third opening 22 is not fixed to the case 2 at any point along the wiring material 5.

[0024] As shown in Figures 1 to 3, when the wiring material 5 of this embodiment slides, of the parts that were housed inside the case in the conventional seat power supply device, two straight sections, namely a first straight section 5a and a second straight section 5b, and one folded section 5c, are exposed to the outside from the first guide direction side of the case 2.

[0025] The first straight portion 5a, the second straight portion 5b, and the turned-back portion 5c are portions of the wiring material 5 that are continuous in the order of the first straight portion 5a, the turned-back portion 5c, and the second straight portion 5b from one side to the other in the extension direction of the wiring material 5. The ends of the first straight portion 5a and the second straight portion 5b in the first guide direction are connected via the turned-back portion 5c.

[0026] The first straight portion 5a is a portion that extends in the extension direction from the first guide portion 2a, and is a portion that, as the case 2 slides, is exposed to the outside from the storage space 23 within the case 2 through the second case-side opening 21. Here, the extension direction is along the guide direction of the seat power supply device 1 in the stored state. The first straight portion 5a maintains a straight state in the extension direction regardless of the slide movement.

[0027] The second straight portion 5b is a portion that extends in the extension direction from the second guide portion 2b, and is a portion that, as the sliding movement occurs, is exposed to the outside from the storage space portion 23 in the case 2 through the case-side second opening 21. The second straight portion 5b maintains a straight state in the extension direction regardless of the sliding movement.

[0028] The folded portion 5c is a portion that folds back from the end of the first straight portion 5a in the extension direction and connects to the end of the second straight portion 5b in the extension direction, and is a portion that, as the case 2 slides, is exposed to the outside from the housing space 23 inside the case 2 through the second case-side opening 21. The folded portion 5c is formed in a U-shape when viewed from the width direction, and maintains an arc state with a constant curvature regardless of the sliding movement.

[0029] The wiring material 5 is composed of a plurality of power feeders W, a strip-shaped member 30, and a holding member 31.

[0030] The power feeder W is, for example, an electric wire for supplying power to a power receiving destination provided on the sliding seat. This electric wire is, for example, a conductor portion (core wire) made of a plurality of conductive metal wires, the outside of which is covered with an insulating coating portion. At least the portion of the power feeder W housed in the housing space portion 23 of the case 2 has a circular cross section. In this embodiment, a plurality of power feeders W are bundled together to form a wire bundle.

[0031] The strip-shaped member 30 is made of, for example, a strip-shaped thin metal plate and is formed to extend in an extension direction (e.g., the X direction shown in FIG. 4 ). When viewed from the extension direction, at least a portion of the strip is slightly curved. As shown in FIG. 4 , the cross-sectional shape of the strip-shaped member 30 of this embodiment differs from that of a simple flat plate. The strip-shaped member 30 has bent portions 30a at both ends in a width direction (e.g., the Y direction shown in FIG. 4 ) perpendicular to the extension direction. Like the steel material of a so-called steel tape measure (convex), the strip-shaped member 30 is elastically deformable in a thickness direction (the Z direction shown in FIG. 4 ) perpendicular to the extension direction and width direction. Even if the strip-shaped member 30 is bent from a straight shape to an arc shape by the application of an external force, it returns to a straight shape from the arc shape due to an elastic restoring force when the applied external force is released. The strip-shaped member 30 is in direct contact with the multiple power feeders W and is positioned outside the multiple power feeders W. That is, the strip-shaped member 30 is located above the power feeder W at the first straight portion 5a, located below the power feeder W at the second straight portion 5b, and located on the extended side at the folded portion 5c.

[0032] When viewed from the extending direction, the two bent portions 30a are both bent toward one side in the plate thickness direction (for example, the X1 direction shown in FIG. 4). The bent portions 30a are slightly curved portions of the belt-shaped member 30. In the linear portion in the width direction of the belt-shaped member 30, the flat contact surfaces 30b of the first linear portion 5a and the second linear portion 5b face in the plate thickness direction and come into contact with the plurality of power feeders W arranged in the width direction.

[0033] The holding member 31 holds the multiple power feeders W relative to the belt-shaped member 30 so as to follow the shape change of the belt-shaped member 30. The holding member 31 is formed in a cylindrical shape, and the multiple power feeders W and the belt-shaped member 30 are inserted inside. The holding member 31 is flexible and is formed, for example, of a tube made of woven fibers. Here, the shape change of the belt-shaped member 30 includes the belt-shaped member elastically deforming from a linear shape to an arc shape as it slides, and elastically returning from the arc shape to a linear shape as it slides. The holding member 31 protects the multiple power feeders W and the belt-shaped member 30 inserted inside, and holds the multiple power feeders W and the belt-shaped member 30 so that they do not become separated or move differently as they slide.

[0034] Regardless of sliding movement, the first straight portion 5a and the second straight portion 5b maintain a constant vertical distance and a straight state in the extension direction by the first guide portion 2a, the second guide portion 2b, and the strip-shaped member 30. Regardless of sliding movement, the folded portion 5c maintains an arc state with a constant curvature by the first guide portion 2a, the second guide portion 2b, and the strip-shaped member 30.

[0035] Next, a description will be given of state changes accompanying the sliding movement of the first straight portion 5a, the second straight portion 5b, and the folded portion 5c of the wiring material 5. When a portion of the wiring material 5 is pulled out most to the outside of the case 2 through the case-side third opening 22 as the wiring material 5 slides, the wiring material 5 enters a Min state in which the first straight portion 5a, the second straight portion 5b, and the folded portion 5c are all housed in the case 2, as shown in Fig. 3. In the Min state, the length of the seat power supply device 1 in the guiding direction is shortest.

[0036] On the other hand, when a part of the wiring material 5 is accommodated most deeply inside the case 2 through the case-side third opening 22 as the wiring material 5 slides, the wiring material 5 enters a Max state in which the first straight portion 5a and the second straight portion 5b are exposed to the outside of the case 2 at the longest length in the guide direction. In the Max state, the length of the seat power supply device 1 in the guide direction is the longest.

[0037] In this embodiment, the wiring material 5 transitions from the Min state to the Max state via the Mid state, which is intermediate between the Min state and the Max state, as the wiring material 5 slides, thereby increasing the length of the seat power supply device 1 in the guide direction. In this case, when a portion of the wiring material 5 is fed from the second guide portion 2b toward the first guide direction through the second case-side opening 21, the second straight portion 5b gradually lengthens in the first guide direction, and the linear portion of the second straight portion 5b gradually curves as it moves in the first guide direction, forming an arc-shaped folded portion 5c with a constant curvature. Furthermore, when a portion of the wiring material 5 is fed from the second guide portion 2b toward the first guide direction, the arc-shaped portion of the folded portion 5c gradually becomes linear, forming the first straight portion 5a, and the first straight portion 5a gradually lengthens in the first guide direction.

[0038] On the other hand, in this embodiment, the wiring material 5 transitions from the Max state to the Mid state and then to the Min state in response to sliding movement, shortening the length of the seat power supply device 1 in the guide direction. In this case, as the second straight portion 5b is gradually accommodated in the second guide portion 2b through the second case-side opening 21, the second straight portion 5b gradually shortens, and the linear portion of the first straight portion 5a gradually curves, forming an arc-shaped folded portion 5c with a certain curvature. Furthermore, as the second straight portion 5b is accommodated in the second guide portion 2b, the arc-shaped portion of the folded portion 5c gradually becomes linear as it moves in the second guide direction, forming the second straight portion 5b, and the second straight portion 5b gradually shortens in the second guide direction.

[0039] As described above, in the seat power supply device 1 according to this embodiment, the case 2 that houses a portion of the wiring material 5 has a first guide portion 2a and a second guide portion 2b that guide the portion of the wiring material 5 along the wiring material 5. The first guide portion 2a and the second guide portion 2b extend in the same direction and are spaced apart in a direction perpendicular to the direction of extension. The wiring material 5 is composed of a plurality of power feeders W, a belt-shaped member 30, and a holding member 31 that holds the power feeders W relative to the belt-shaped member 30 so as to follow the shape of the belt-shaped member 30. The belt-shaped member 30 is made of a belt-shaped thin metal plate, similar to a so-called steel tape measure (convex), and is formed to extend in the direction of extension, with a portion curved when viewed from the direction of extension. The wiring material 5 has a first straight portion 5a extending in the extension direction from the first guide portion 2a, a second straight portion 5b extending in the extension direction from the second guide portion 2b, and a folded portion 5c that folds back from the end of the extension direction of the first straight portion 5a and connects to the end of the extension direction of the second straight portion 5b.

[0040] With the above configuration, the portion of the case in the conventional seat power supply device that accommodates the U-shaped bent wire harness sheathed in the corrugated tube is no longer necessary, thereby reducing the mounting space required for the case, thereby saving space. Furthermore, because a portion of the case in the conventional seat power supply device can be made smaller, the case can be made lighter. Furthermore, in the conventional seat power supply device, the corrugated tube with the wire harness inserted therethrough accommodates the U-shaped bent wire harness in the case. This can cause external vibrations to vibrate the wire harness, which can strike the inner surface of the case, potentially generating abnormal noise. However, because vibrations of the first straight portion 5a, the second straight portion 5b, and the folded portion 5c do not strike the case 2, the generation of abnormal noise can be suppressed. Furthermore, because there is no need to design a new case to accommodate the size and shape of the mounting space provided in the vehicle body, the versatility of the seat power supply device 1 is improved and product costs can be reduced.

[0041] Furthermore, in the seat power supply device 1 according to this embodiment, the first guide portion 2a and the second guide portion 2b enable the first straight portion 5a and the second straight portion 5b of the wiring material 5 to maintain a linear shape along the same direction, and the belt-shaped member 30 enables the folded portion 5c to maintain an arc shape with a certain curvature.

[0042] In addition, in the seat power supply device 1 according to this embodiment, the first straight portion 5a, the second straight portion 5b, and the folded portion 5c of the wiring material 5 are exposed to the outside of the case 2 from the first guide portion 2a and the second guide portion 2b as the sliding seat slides. This eliminates the need for a portion of the case in the conventional seat power supply device that houses the wire harness wrapped in a corrugated tube in a U-shaped curved state, thereby reducing the installation space for the case and achieving space savings.

[0043] In addition, in the seat power supply device 1 according to this embodiment, the belt-shaped member 30 has bent portions 30a at both ends in the width direction perpendicular to the extension direction when viewed from the extension direction, which allows the belt-shaped member 30 to ensure flexibility and uprightness at the same time, similar to a convex cross-sectional shape in which the cross section viewed from the extension direction is curved in an arc shape.

[0044] In the above embodiment, the belt-shaped member 30 is partially curved when viewed from the extension direction. For example, as shown in FIG. 4, the belt-shaped member 30 has bent portions 30a at both widthwise ends. However, the present invention is not limited to this. For example, like the belt-shaped member 30A in the wiring material 5A shown in FIG. 5, the cross-sectional shape when viewed from the extension direction may be formed in an arc shape so as to bulge toward one side in the thickness direction (e.g., the X1 direction shown in FIG. 5). In other words, the belt-shaped member may be entirely curved when viewed from the extension direction, like the belt-shaped member 30A. In the belt-shaped member 30, the contact surfaces 30Aa, which are concave in the first straight portion 5a and the second straight portion 5b, face the thickness direction and contact the multiple power supply lines W arranged in the width direction. In the seat power supply device 1 according to this embodiment, the cross-sectional shape of the belt-shaped member 30A when viewed from the extension direction is formed in an arc shape so as to bulge toward one side in the thickness direction of the belt-shaped member 30A. This allows the belt-shaped member 30A to have flexibility and uprightness at the same time, similar to a convex member whose cross section viewed from the extension direction is curved in an arc shape.

[0045] In the above embodiment, the belt-shaped members 30, 30A are each made of a single sheet of metal, but the present invention is not limited to this and may be made of a laminate of multiple sheets of metal. When the belt-shaped members 30, 30A are made of multiple sheets of metal, it is preferable that the thickness of the sheets is thinner than when they are made of a single sheet of metal.

[0046] Furthermore, although the belt-shaped members 30, 30A are arranged on the outer side relative to the multiple power feed lines W, the present invention is not limited to this and may be arranged on the inner side relative to the multiple power feed lines W. In this case, the belt-shaped members 30, 30A are located on the lower side of the first straight portion 5a, on the upper side of the second straight portion 5b, and on the contracted side of the folded portion 5c.

[0047] In the above embodiment, the holding member 31 is a cylindrical, flexible tube made of woven fibers, through which the plurality of power feeders W and the belt-shaped member 30 can be inserted. However, the holding member 31 is not limited to this, as long as it can hold the plurality of power feeders W so as to follow the shape change of the belt-shaped member 30. For example, the plurality of power feeders W and the belt-shaped member 30 may be bound together with a plurality of cable ties. In this case, a plurality of locations where the cable ties are used to bind the plurality of power feeders W and the belt-shaped member 30 may be provided at equal intervals along the extension direction of the plurality of power feeders W and the belt-shaped member 30.

[0048] In the above embodiment, the Min state is a state in which, as shown in Fig. 3, a portion of the wiring material 5 is pulled out most to the outside of the case 2 through the case-side third opening 22 in response to sliding movement, and none of the first straight portion 5a, the second straight portion 5b, and the folded portion 5c is exposed to the outside of the case 2, but this is not limited to this. For example, the Min state may be a state in which, as a result of sliding movement, a portion of the wiring material 5 is pulled out most to the outside of the case 2 through the case-side third opening 22, and the first straight portion 5a and the second straight portion 5b are exposed the shortest in the guiding direction.

[0049] In addition, in the above embodiment, the power feeder W in the wiring material 5 is composed of a plurality of wires, but this is not limited thereto and may be one wire. That is, there may be one or more power feeders W. In addition, in the above embodiment, the cross-sectional shape of the power feeder W is circular, but this is not limited thereto and may be polygonal or elliptical. In addition, the power feeder W in the wiring material 5 is composed of a plurality of wires, but this is not limited thereto and may be, for example, a flexible flat cable (so-called FFC) or the like. [Explanation of symbols]

[0050] 1. Seat power supply device 2 cases 2a First Information Department 2b Second guide section 5 Routing material 5a First straight section 5b Second straight section 5c Folded section 30 Belt-shaped member 31 Retaining member W feed line

Claims

1. a wiring material having at least a portion of one end connected to a power receiving destination mounted on a seat supported so as to be slidable in a sliding direction relative to a vehicle body, and at least a portion of the other end connected to a power transmitting source that transmits power to the power receiving destination; A case that accommodates a portion of the wiring material, The case is The wiring material has a first guide portion and a second guide portion that guide a part of the wiring material in a guide direction along the wiring material, The first guide portion and the second guide portion are The guiding directions are the same direction, and the guiding members are arranged at intervals in a direction perpendicular to the guiding direction, The wiring material is one or more feeders; a belt-shaped member that is formed to extend in an extension direction, that is formed to be at least partially curved when viewed from the extension direction, and that is elastically deformable at least in a plate thickness direction perpendicular to the extension direction; a holding member that holds the power supply line relative to the belt-shaped member so that the power supply line follows a change in shape of the belt-shaped member, a first linear portion extending from the first guide portion in the extension direction; a second linear portion extending from the second guide portion in the extension direction; a folded portion folded back from an end of the first straight portion in the extension direction and connected to an end of the second straight portion in the extension direction, The wiring material is the first straight portion, the second straight portion, and the folded portion are exposed to the outside of the case from the first guide portion and the second guide portion as the seat slides. A power supply device for a seat.

2. The belt-shaped member is The power supply device for a seat according to claim 1 , wherein when viewed from the extending direction, both ends in a width direction perpendicular to the extending direction have bent portions bent toward one side in the plate thickness direction.

3. The belt-shaped member is The power supply device for a seat according to claim 1 , wherein a cross-sectional shape of the power supply device as viewed from the extending direction is formed into an arc shape that bulges out toward one side in the plate thickness direction.

4. The belt-shaped member is formed of a convex steel material, The seat power supply device according to any one of claims 1 to 3, wherein the holding member is formed of a tube made of woven fibers.

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