Wire harnesses and lighting systems

The wire harness with a rotatable light-emitting member and power control addresses the inefficiencies of existing systems by providing stable illumination of the vehicle interior and exterior areas based on the sliding door's position, enhancing visibility and reducing complexity and cost.

JP2026097004APending Publication Date: 2026-06-16SUMITOMO WIRING SYSTEMS LTD

Patent Information

Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
SUMITOMO WIRING SYSTEMS LTD
Filing Date
2024-12-04
Publication Date
2026-06-16

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  • Figure 2026097004000001_ABST
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Abstract

To provide a wire harness that uses only one light-emitting element while ensuring good visibility of the footwell when the sliding door is open and closed. [Solution] The wire harness 10 includes a group of wires 11 routed from the vehicle body 20 to a sliding door 30 that can be opened and closed relative to the vehicle body 20. The wire harness 10 includes a light-emitting member 14 that is provided so as to change direction according to the open or closed state of the sliding door 30. The light-emitting member 14 is provided so as to be able to illuminate the floor F inside the vehicle interior around the sliding door 30 when the sliding door 30 is fully closed, and to illuminate the area outside the vehicle interior around the sliding door 30 when the sliding door 30 is fully open.
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Description

Technical Field

[0001] The present disclosure relates to a wire harness and a lighting system.

Background Art

[0002] Conventionally, as a lighting system, there is one including a power control device provided on a vehicle body, a light-emitting member provided on a sliding door, and a wire harness connecting them (see, for example, Patent Document 1). In such a lighting system, when the sliding door is opened, the light-emitting member can illuminate the outside of the vehicle cabin around the sliding door. Therefore, when the sliding door is opened, easy boarding and alighting of a user are possible.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] By the way, a passenger may want to check for lost items on the floor inside the vehicle cabin when the sliding door is closed. Generally, a dome lamp is provided on the ceiling inside the vehicle cabin, but it is difficult to secure a field of view at the feet with a dome lamp provided on the ceiling. Therefore, for example, it is conceivable to separately provide a light-emitting member capable of illuminating the floor inside the vehicle cabin, but in this case, a separate light-emitting member, electric wire, and arrangement space are required.

[0005] An object of the present disclosure is to provide a wire harness and a lighting system that can satisfactorily secure a field of view at the feet when the sliding door is opened and closed while using one light-emitting member.

Means for Solving the Problems

[0006] The wire harness of this disclosure comprises a group of electric wires routed from the vehicle body to a sliding door that can be opened and closed relative to the vehicle body, and includes a light-emitting member that is configured to change orientation according to the open or closed state of the sliding door, and is configured to illuminate the floor inside the vehicle interior around the sliding door when the sliding door is fully closed, and to illuminate the area outside the vehicle interior around the sliding door when the sliding door is fully open. [Effects of the Invention]

[0007] According to the wire harness of this disclosure, a good view of the area below the feet can be ensured when the sliding door is open and closed, even with only one light-emitting element. [Brief explanation of the drawing]

[0008] [Figure 1] Figure 1 is a schematic diagram showing a portion of a vehicle with its sliding door fully closed, as viewed from above, according to one embodiment. [Figure 2] Figure 2 is a schematic diagram showing a part of a vehicle with a sliding door in operation, viewed from above, according to one embodiment. [Figure 3] Figure 3 is a schematic diagram showing a portion of a vehicle with its sliding door fully open, as viewed from above, according to one embodiment. [Figure 4] Figure 4 is a schematic cross-sectional view along line 4-4 in Figure 1. [Figure 5] Figure 5 is an exploded perspective view of a wire harness in one embodiment. [Figure 6] Figure 6 is a plan view illustrating the type of separate carrier in one embodiment. [Figure 7] Figure 7 is a plan view illustrating the type of separate carrier in one embodiment. [Figure 8] Figure 8 is a cross-sectional view of a wire harness in one embodiment. [Figure 9] Figure 9 is a schematic cross-sectional view illustrating a wire harness in a different example. [Modes for carrying out the invention]

[0009] [Description of Embodiments in this Disclosure] First, the embodiments of this disclosure will be listed and described. The wire harness in this disclosure is [1] A wire harness comprising a group of electric wires routed from the vehicle body to a sliding door that can be opened and closed relative to the vehicle body, comprising a light-emitting member provided such that its orientation changes according to the open or closed state of the sliding door, and which is capable of illuminating the floor inside the vehicle interior around the sliding door when the sliding door is fully closed, and illuminating the area outside the vehicle interior around the sliding door when the sliding door is fully open.

[0010] This configuration allows for good visibility of the area around the passenger's feet when the sliding door is open and closed, even with only one light-emitting element. For example, even at night, when the sliding door is fully closed, passengers can easily check for dropped items on the floor. Also, even at night, when the sliding door is fully open, passengers can easily get in and out of the vehicle.

[0011] [2] In the above [1], a plurality of separate carriers are provided that cover the group of electric wires and are arranged in parallel along the direction of extension of the group of electric wires and are rotatably connected to one another, and the light-emitting member may be fixed to at least one of the plurality of separate carriers.

[0012] According to the same configuration, a plurality of separate conveyors are provided which cover the wire group and are arranged side by side along the extending direction of the wire group and are rotatably connected to each other. Since the light emitting member is fixed to the separate conveyor, for example, the position illuminated by the light emitting member can be stabilized. For example, in a configuration where the wire group is only covered by a simple corrugated tube, the wire harness can be bent freely at any part in the extending direction, and the bending manner may change due to deterioration or the like, so the position illuminated by the light emitting member is not stable. On the other hand, since the plurality of separate conveyors can keep the bending manner constant even when the opening and closing operation of the sliding door is repeated, the position illuminated by the light emitting member can be stabilized.

[0013] [3] In the above [2], each of the plurality of separate conveyors has a U-shaped separate conveyor body with one side in a direction intersecting the extending direction of the wire group being open, and a conveyor cover fixed so as to close the opening of the separate conveyor body. The light emitting member may be fixed to the conveyor cover.

[0014] According to the same configuration, since the light emitting member is fixed to the conveyor cover, for example, compared with a configuration where the light emitting member is fixed to the separate conveyor body, a special member to which the light emitting member is fixed can be made into a small member. That is, since the light emitting member can be fixed only by changing a small member, for example, the manufacturing becomes easy and an increase in cost can be suppressed.

[0015] [4] In the above [3], the conveyor cover has a light transmissive portion, and the light emitting member may be arranged inside the separate conveyor so as to illuminate the outside from the light transmissive portion and fixed to the conveyor cover by a potting material.

[0016] According to the same configuration, the light emitting member is arranged inside the separate conveyor so as to illuminate the outside from the light transmissive portion of the conveyor cover and fixed to the conveyor cover by a potting material, so it is stably fixed. Also, the potting material can prevent the light emitting member from being wetted.

[0017] [5] In any one of the above [1] to [4], the light-emitting member may be set to be disposed outside the vehicle body rather than at a boarding / alighting step provided at a portion of the vehicle body corresponding to the sliding door in a fully opened state of the sliding door.

[0018] According to this configuration, since the light-emitting member is set to be disposed outside the vehicle body rather than at the boarding / alighting step in a fully opened state of the sliding door, a desired position such as below the boarding / alighting step can be illuminated well. That is, for example, in a configuration where the light-emitting member is disposed at a position inside the vehicle body rather than at the outermost side of the boarding / alighting step, it is difficult to illuminate a desired position such as below the boarding / alighting step because the boarding / alighting step gets in the way. In contrast, it becomes possible to illuminate a desired position well.

[0019] [6] In any one of the above [1] to [5], the light-emitting member may be set to be disposed above the floor in a fully closed state of the sliding door.

[0020] According to this configuration, since the light-emitting member is set to be disposed above the floor in a fully closed state of the sliding door, the floor can be illuminated well. That is, for example, in a configuration where the light-emitting member is disposed at a position below the floor, the floor cannot be illuminated directly, but in contrast, the floor can be illuminated directly and well.

[0021] The lighting system of the present disclosure [7] includes the wire harness according to any one of the above [1] to [6], and a power supply control device that supplies power to the light-emitting member when the sliding door is in a fully closed state and when the sliding door is in a fully opened state.

[0022] With this configuration, power is supplied to the light-emitting element by the power control device when the sliding door is fully closed and when the sliding door is fully open. Therefore, even with only one light-emitting element, good visibility of the area around the feet can be ensured when the sliding door is open and closed.

[0023] [8] In the above [7], the power supply control device may stop supplying power to the light-emitting member after a predetermined time has elapsed since the sliding door was fully closed. According to this configuration, power to the light-emitting element is cut off after a preset time has elapsed since the sliding door was fully closed. This allows passengers to check for dropped items on the floor immediately after boarding, and then automatically dim the lights.

[0024] [9] In the above [8], a switch may be provided that can switch between supplying and stopping power to the light-emitting member after a predetermined time has elapsed since the sliding door was fully closed.

[0025] According to this configuration, a switch is provided that can switch between supplying and stopping power to the light-emitting element after a preset time has elapsed since the sliding door was fully closed. For example, this allows passengers to illuminate the floor when they want to check for dropped items on the floor.

[0026]

[10] In any one of the above [7] to [9], the power control device may supply power to the light-emitting member even while the sliding door is in operation. According to this configuration, power is supplied to the light-emitting element even while the sliding door is in operation, so for example, the user can maintain a clear view of the surrounding area even while the sliding door is in operation.

[0027]

[11] In the above

[10] , the power supply control device may supply power to the light-emitting member during the operation of the sliding door such that it lights up in a different way than when the sliding door is fully closed and when the sliding door is fully open.

[0028] According to this configuration, power is supplied to the light-emitting element so that it lights up differently when the sliding door is fully closed and when it is fully open, while the sliding door is in operation. For example, the user can recognize that the sliding door is in operation.

[0029] [Details of the embodiments of this disclosure] A specific example of the lighting system described herein will be explained below with reference to the drawings. In each drawing, some parts of the configuration may be exaggerated or simplified for ease of explanation. Also, the dimensional ratios of each part may differ in each drawing.

[0030] In this specification, terms such as “first,” “second,” etc., are used solely to distinguish between subjects and do not rank them. The present invention is not limited to these examples and is shown in the claims, and all modifications within the meaning and scope equivalent to the claims are intended.

[0031] (Configuration of Lighting System 1) As shown in Figures 1 to 3, the lighting system 1 comprises a wire harness 10 and a power control device 100. The lighting system 1 is installed on the vehicle body 20 and the sliding door 30 of the vehicle.

[0032] (Configuration of wire harness 10) The wire harness 10 includes a group of wires 11 routed from the vehicle body 20 to the sliding door 30. The group of wires 11 electrically connects a power control device 100 installed on the vehicle body 20 to electrical equipment (not shown) installed on the sliding door 30. The electrical equipment is, for example, a power window motor or a lock actuator, and the power control device 100 is a device for supplying power to that electrical equipment. The vehicle body 20 has an opening 21 that can be opened and closed by the sliding door 30. The vehicle body 20 is also provided with an entry / exit step 22. The entry / exit step 22 is located in a part corresponding to the sliding door 30, and is provided in a part on the inside (upper side in Figure 1) of the opening 21, rather than the outside (lower side in Figure 1) end. The entry / exit step 22 is for the user to place their feet when getting in and out of the vehicle. The sliding door 30 is also provided so as to be able to slide forward and backward (left and right in Figure 1) of the vehicle body 20 by a mechanism (not shown). More specifically, the sliding door 30 is capable of sliding from a fully closed state (see Figure 1) to the outside of the vehicle body 20 (lower side in Figure 1) while sliding towards the rear of the vehicle body 20 (left side in Figure 2) by a mechanism not shown, and can slide all the way to a fully open state (see Figure 3).

[0033] As shown in Figure 5, the wire harness 10 comprises a group of wires 11, a plurality of separate carriers 12, a rubber boot 13, and a light-emitting member 14. Figure 5 shows a portion of the wire harness 10 in a disassembled state with one separate carrier 12 and a rubber boot 13. The group of wires 11 is made up of bundles of multiple wires, but in the figure, the individual wires are omitted and shown schematically as a single unit.

[0034] (Configuration of multiple separate vanes 12) Multiple separate carriers 12 are made of resin material. Multiple separate carriers 12 cover the group of electric wires 11 and are arranged side by side along the direction of extension of the group of electric wires 11, while being rotatably connected to one another.

[0035] Specifically, each of the multiple separate carriers 12 has a U-shaped separate carrier body 15 with an opening on one side that intersects the direction in which the group of electric wires 11 extends, and a carrier cover 16 fixed to close the opening of the separate carrier body 15.

[0036] Each separate carrier body 15 has a pivot shaft portion 15a at its first end and a rotatable shaft portion 15b at its second end to which the pivot shaft portion 15a can be connected. Each of the multiple separate carrier bodies 15 is rotatable relative to an adjacent separate carrier body 15 by having its pivot shaft portion 15a rotatably connected to the rotatable shaft portion 15b of an adjacent separate carrier body 15.

[0037] As shown in Figures 6 and 7, the multiple separate carriers 12 of this embodiment are of two types: a first separate carrier 12A (see Figure 6) and a second separate carrier 12B (see Figure 7), each with a different rotatable angle. As shown in Figure 6, the first separate carrier 12A is rotatable 15° counterclockwise in the first rotation direction from a straight position, and 30° clockwise in the second rotation direction from a straight position. As shown in Figure 7, the second separate carrier 12B is not rotatable counterclockwise in the first rotation direction from a straight position, and 45° clockwise in the second rotation direction from a straight position. The rotatable angle of the separate carrier 12 is set by a known structure, such as changing the shape of the engagement portion with adjacent separate carriers 12.

[0038] The multiple separate carriers 12 are arranged so that the wire harness 10 does not protrude beyond the overhang prevention line Z (see Figure 3) towards the vehicle body 20 (upper side in Figure 3), with the first separate carrier 12A and the second separate carrier 12B being combined. The overhang prevention line Z is a line set for each vehicle model, for example, along the vehicle body 20 to maintain a certain distance from the vehicle body 20.

[0039] As shown in Figure 3, in this embodiment, for example, a second separate carrier 12B (see Figure 7) is used in the intermediate range X of the wire harness 10. This prevents the wire harness 10 from protruding beyond the overhang prevention line Z towards the vehicle body 20 (upper side in Figure 3). Therefore, the wire harness 10 is prevented from colliding with the vehicle body 20. In areas of the wire harness 10 other than the intermediate range X, a first separate carrier 12A (see Figure 6) is used. Of course, the combination of the first separate carrier 12A and the second separate carrier 12B may be appropriately changed according to, for example, the overhang prevention line Z set for each vehicle model.

[0040] (Composition of rubber boots 13) The rubber boot 13 is made of rubber material. As shown in Figure 5, the rubber boot 13 is provided to cover a plurality of rotatably connected separate carriers 12. The rubber boot 13 has a bellows structure formed by repeating indentations and protrusions in the extending direction. The rubber boot 13 is formed to be easily bent by its bellows structure, allowing the plurality of separate carriers 12 to rotate.

[0041] (Configuration of the light-emitting member 14) As shown in Figures 1 and 3, the light-emitting member 14 is positioned so as to change direction according to the open / closed state of the sliding door 30. As shown in Figure 1, the light-emitting member 14 is positioned to illuminate the floor F inside the vehicle interior around the sliding door 30 when the sliding door 30 is fully closed. Also, as shown in Figure 3, the light-emitting member 14 is positioned to illuminate the area outside the vehicle interior around the sliding door 30 when the sliding door 30 is fully open. Figures 1 and 3 schematically illustrate the illumination ranges H1 and H2 by the light-emitting member 14.

[0042] Furthermore, as shown in Figure 4, the light-emitting member 14 in this embodiment is positioned above the floor F when the sliding door 30 is fully closed. The light-emitting member 14 is provided in such a way that it can illuminate the floor F inside the vehicle when the sliding door 30 is fully closed. In Figure 4, a door trim 31 is shown on the sliding door 30, and the wire harness 10 is positioned below the door trim 31 when the sliding door 30 is fully closed.

[0043] Furthermore, as shown in Figure 3, the light-emitting member 14 of this embodiment is configured so that, when the sliding door 30 is fully open, at least a portion of it is positioned outside the vehicle body 20 (lower side in Figure 3) of the boarding / alighting step 22. In addition, the light-emitting member 14 of this embodiment is configured so that, when the sliding door 30 is fully open, at least a portion of it is positioned outside the vehicle body 20 of the opening 21 of the vehicle body 20. The light-emitting member 14 is also configured so that, when the sliding door 30 is fully open, it can illuminate below the boarding / alighting step 22, more specifically, below the outside of the vehicle body 20 at a position corresponding to the boarding / alighting step 22.

[0044] As shown in Figure 8, the light-emitting member 14 in this embodiment is an LED substrate on which LED elements are mounted, and a lens 17 is fixed to its outer surface. The light-emitting member 14 is fixed to the cabin cover 16 of the separate cabin 12.

[0045] More specifically, the cabin cover 16 to which the light-emitting member 14 is fixed has a through-hole 16a that serves as a light-transmitting portion. Note that a normal cabin cover 16 to which the light-emitting member 14 is not fixed does not have a through-hole 16a, and only the cabin cover 16 to which the light-emitting member 14 is fixed is a special component with a different part number. The through-hole 16a opens diagonally downward. In addition, the rubber boot 13 has a rubber through-hole 13a that serves as a light-transmitting portion on the rubber boot side, in a location corresponding to the through-hole 16a.

[0046] The light-emitting member 14 is positioned inside the separate carrier 12 so as to illuminate the outside through the through-hole 16a and the rubber through-hole 13a, and is fixed to the carrier cover 16 by the potting material 18. In other words, the light-emitting member 14 is positioned inside the separate carrier 12 so as to be able to emit light through the through-hole 16a and the rubber through-hole 13a, and is fixed to the carrier cover 16 by the potting material 18. In this embodiment, the light-emitting member 14 is positioned so that the lens 17 is located inside the through-hole 16a. The potting material 18 also fixes the power supply line 19 connected to the light-emitting member 14 together with the light-emitting member 14. The power supply line 19 is part of the wire group 11 and is connected to a power control device 100 (see Figures 1 to 3) provided on the vehicle body 20.

[0047] (Configuration of the power control device 100) The power control device 100 is electrically connected to a battery (not shown), a courtesy switch (not shown), etc. The power control device 100 supplies power to the light-emitting member 14 when the sliding door 30 is fully closed (see Figure 1) and when the sliding door 30 is fully open (see Figure 3). In addition, the power control device 100 of this embodiment also supplies power to the light-emitting member 14 while the sliding door 30 is in operation (see Figure 2).

[0048] In detail, the power control device 100 of this embodiment stops supplying power to the light-emitting member 14 after a preset time has elapsed since the sliding door 30 was fully closed. The preset time is, for example, 10 seconds, 15 seconds, or any other time set by certain conditions.

[0049] Furthermore, as shown in Figure 1, the lighting system 1 of this embodiment includes a switch 40. The switch 40 is electrically connected to the power control device 100. The switch 40 is located in a position where it can be operated by the passenger. The switch 40 is configured to switch between supplying and stopping power to the light-emitting member 14 after a preset time has elapsed since the sliding door 30 was fully closed.

[0050] Furthermore, the power control device 100 of this embodiment supplies power to the light-emitting member 14 in such a way that it lights up differently when the sliding door 30 is fully closed and when the sliding door 30 is fully open, while the sliding door 30 is in operation. Specifically, the power control device 100 of this embodiment supplies power so that the light-emitting member 14 lights up when the sliding door 30 is fully closed and when the sliding door 30 is fully open, and supplies power so that the light-emitting member 14 blinks while the sliding door 30 is in operation.

[0051] (Operation of this embodiment) Next, the operation of the lighting system 1 configured as described above will be explained. For example, when the sliding door 30 is fully closed, power is supplied to the light-emitting element 14 from the power control device 100. As a result, when the sliding door 30 is fully closed, the light-emitting element 14 illuminates the floor F inside the vehicle interior around the sliding door 30. Then, after a preset time has elapsed since the sliding door 30 was fully closed, the power supply to the light-emitting element 14 is stopped, and the light-emitting element 14 turns off.

[0052] Furthermore, for example, while the sliding door 30 is in operation, power is supplied from the power control device 100 to the light-emitting element 14 so that the light-emitting element 14 flashes. As a result, while the sliding door 30 is in operation, the area around the sliding door 30 repeatedly becomes brighter and darker.

[0053] Furthermore, for example, when the sliding door 30 is fully open, power is supplied from the power control device 100 to the light-emitting member 14. As a result, when the sliding door 30 is fully open, the light-emitting member 14 illuminates the area outside the vehicle interior around the sliding door 30.

[0054] (Effects of this embodiment) Next, the effects of the above embodiment are described below. (1) The wire harness 10 includes a light-emitting member 14 that is positioned to change direction according to the open / closed state of the sliding door 30. The light-emitting member 14 is positioned to illuminate the floor F inside the vehicle interior around the sliding door 30 when the sliding door 30 is fully closed, and to illuminate the area outside the vehicle interior around the sliding door 30 when the sliding door 30 is fully open. Thus, even with only one light-emitting member 14, it is possible to ensure good visibility of the area around the feet when the sliding door 30 is open and closed. For example, even at night, when the sliding door 30 is fully closed, passengers can easily check for dropped items on the floor F. Also, for example, even at night, when the sliding door 30 is fully open, it is possible for users to easily get in and out of the vehicle.

[0055] (2) The wire harness 10 includes a plurality of separate carriers 12 that cover the wire group 11 and are arranged in parallel along the direction of extension of the wire group 11, and are rotatably connected to one another. Since the light-emitting member 14 is fixed to the separate carrier 12, for example, the position illuminated by the light-emitting member 14 can be stabilized. For example, if the wire group 11 is simply covered with a corrugated tube, the wire harness 10 can be bent freely at any point in the direction of extension, and the way it bends may change due to deterioration, etc., so the position illuminated by the light-emitting member 14 is not stable. In contrast, the plurality of separate carriers 12 can maintain a constant bend even when the sliding door 30 is opened and closed repeatedly, so the position illuminated by the light-emitting member 14 can be stabilized.

[0056] Furthermore, if the wire group 11 is simply covered with a corrugated tube, when bent, the entire structure tends to form a large arc, which could cause it to penetrate areas where it is not intended to penetrate, and consequently, to come into contact with other components. In contrast, the multiple separate carriers 12 can maintain a consistent bending pattern, thus reliably preventing contact with other components. Specifically, the wire harness 10 is prevented from protruding beyond the overhang prevention line Z towards the vehicle body 20, thereby preventing collision with the vehicle body 20.

[0057] (3) Each of the multiple separate carriers 12 has a U-shaped separate carrier body 15 with an opening on one side in the direction intersecting the direction of extension of the wire group 11, and a carrier cover 16 fixed to close the opening of the separate carrier body 15. Since the light-emitting member 14 is fixed to the carrier cover 16, for example, the special member to which the light-emitting member 14 is fixed can be a smaller member compared to a configuration in which it is fixed to the separate carrier body 15. In other words, the light-emitting member 14 can be fixed by changing a small member, for example, which makes manufacturing easier and suppresses cost increases.

[0058] (4) The light-emitting member 14 is positioned inside the separate carrier 12 so as to illuminate the outside through the through-hole 16a of the carrier cover 16, and is fixed to the carrier cover 16 by the potting material 18, so that it is stably fixed. In addition, the potting material 18 prevents water from getting on the light-emitting member 14.

[0059] (5) The light-emitting member 14 is positioned outside the vehicle body 20 beyond the boarding / alighting step 22 when the sliding door 30 is fully open, so that it can illuminate a desired position such as below the boarding / alighting step 22 well. That is, for example, in a configuration where the light-emitting member 14 is positioned inside the outermost part of the boarding / alighting step 22 on the vehicle body 20, the boarding / alighting step 22 gets in the way, making it difficult to illuminate a desired position such as below the boarding / alighting step 22. In contrast, it becomes possible to illuminate a desired position well.

[0060] (6) The light-emitting member 14 is positioned above the floor F when the sliding door 30 is fully closed, so that it can illuminate the floor F well. That is, for example, in a configuration where the light-emitting member 14 is positioned below the floor F, it is not possible to directly illuminate the floor F, whereas in this configuration, the floor F can be directly and well illuminated.

[0061] (7) When the sliding door 30 is fully closed and when the sliding door 30 is fully open, power is supplied to the light-emitting member 14 by the power control device 100. Thus, even with only one light-emitting member 14, a good view of the area below the feet can be automatically ensured when the sliding door 30 is open and closed.

[0062] (8) When the sliding door 30 is fully closed, a preset time has elapsed and the power supply to the light-emitting member 14 has been stopped. For example, passengers can check for dropped items on the floor F immediately after boarding, and the lights can then be automatically dimmed.

[0063] (9) After a preset time has elapsed since the sliding door 30 was fully closed, a switch 40 is provided that can switch between supplying and stopping power to the light-emitting member 14. For example, when a passenger wants to check for dropped items on the floor F, the floor F can be illuminated.

[0064] (10) Power is supplied to the light-emitting member 14 even while the sliding door 30 is in operation, so for example, the user can maintain a clear view of the surrounding area even while the sliding door 30 is in operation. (11) Power is supplied to the light-emitting member 14 during the operation of the sliding door 30 so that it lights up in a different way than when the sliding door 30 is fully closed or fully open. Therefore, for example, the user can recognize that the sliding door 30 is in operation.

[0065] (Example of change) The above embodiment can be implemented with the following modifications. The above embodiment and the following modifications can be combined with each other to the extent that they do not contradict each other technically.

[0066] In the above embodiment, the light-emitting member 14 is positioned above the floor F inside the vehicle when the sliding door 30 is fully closed, but the embodiment is not limited to this. For example, as shown in Figure 9, the light-emitting member 14 may be configured to be positioned below the floor F. In this case, if the light-emitting member 14 is positioned so that it can illuminate the floor F with light leaking from below the floor F, then lost items and the like can be easily checked, even at night.

[0067] In the above embodiment, the wire harness 10 is provided with a plurality of separate carriers 12 that cover the group of wires 11 and are arranged in parallel along the extending direction of the group of wires 11 while being rotatably connected to one another. However, it is not limited to this. For example, the wire harness may be such that the group of wires 11 is covered with a corrugated tube, and a light-emitting member 14 may be provided on the corrugated tube.

[0068] In the above embodiment, the light-emitting member 14 is fixed to the carrier cover 16, but the embodiment is not limited to this. For example, the light-emitting member 14 may be fixed to the separate carrier body 15.

[0069] In the above embodiment, the light-emitting member 14 is positioned inside the separate carrier 12 and fixed to the carrier cover 16 by a potting material 18, but the embodiment is not limited to this. For example, the light-emitting member 14 may be fixed to the outside of the separate carrier 12. Also, for example, the light-emitting member 14 may be fixed to the separate carrier 12 by a fixing structure other than the potting material 18.

[0070] In the above embodiment, the light-emitting member 14 is positioned outside the vehicle body 20 beyond the boarding / alighting step 22 when the sliding door 30 is fully open, but this is not limited to this. For example, the entire light-emitting member 14 may be positioned inside the outermost part of the boarding / alighting step 22 on the vehicle body 20.

[0071] In the above embodiment, the lighting system 1 includes a power control device 100 that supplies power to the light-emitting member 14 when the sliding door 30 is fully closed and when the sliding door 30 is fully open, but is not limited to this. For example, the power control device 100 may be configured to supply power to the light-emitting member 14 when the sliding door 30 is fully closed, but not to automatically supply power when the sliding door 30 is fully open. Furthermore, for example, the power control device 100 may be configured to supply power to the light-emitting member 14 based on the operation of a switch 40.

[0072] In the above embodiment, the power control device 100 stops supplying power to the light-emitting member 14 after a preset time has elapsed since the sliding door 30 was fully closed, but it is not limited to this. For example, the power control device 100 may be configured to continue supplying power to the light-emitting member 14 from the time the sliding door 30 is fully closed until it is stopped based on the operation of the switch 40.

[0073] In the above embodiment, the lighting system 1 is provided with a switch 40 that can switch between supplying and stopping power to the light-emitting member 14 after a preset time has elapsed since the sliding door 30 was fully closed, but it is not limited to this.

[0074] In the above embodiment, the power control device 100 is configured to supply power to the light-emitting member 14 even while the sliding door 30 is in operation, but it is not limited to this. That is, the power control device 100 may be configured not to supply power to the light-emitting member 14 while the sliding door 30 is in operation.

[0075] In the above embodiment, the power control device 100 is configured to supply power to the light-emitting member 14 in such a way that it lights up differently when the sliding door 30 is fully closed and when the sliding door 30 is fully open, but it is not limited to this. For example, the power control device 100 may be configured to supply power to the light-emitting member 14 in such a way that it lights up the same way when the sliding door 30 is fully closed and when the sliding door 30 is fully open, while the sliding door 30 is operating.

[0076] Furthermore, in the above embodiment, the power control device 100 is configured to supply power so that the light-emitting member 14 flashes while the sliding door 30 is in operation, but this is not limited to this configuration. For example, the power control device 100 may be configured to supply power so that the light-emitting member 14 lights up in a different color than when the sliding door 30 is fully closed or fully open while the sliding door 30 is in operation. In this case, the light-emitting member 14 must be configured to light up in multiple colors.

[0077] In the above embodiment, the cabin cover 16 is assumed to have a through-hole 16a as a light-transmitting portion, but it is not limited to this, and the through-hole 16a may be changed to another light-transmitting portion that can transmit light. For example, the cabin cover 16 may have a light-transmitting portion by two-color molding of a lens in a portion corresponding to the through-hole 16a. Alternatively, for example, the cabin cover 16 may have a light-transmitting portion by molding the whole or a part of it from a transparent resin material. Note that if the light-transmitting portion is a through-hole 16a, it is easier to provide a light-transmitting portion compared to other light-transmitting portions.

[0078] In the above embodiment, the rubber boot 13 has a rubber through-hole 13a as a light-transmitting portion on the rubber boot side, but it is not limited to this, and the rubber through-hole 13a may be changed to another light-transmitting portion on the rubber boot side that can transmit light. For example, the rubber boot 13 may have a light-transmitting portion on the rubber boot side by providing a thin film portion that can transmit light in the area corresponding to the rubber through-hole 13a. Alternatively, for example, the rubber boot 13 may have a light-transmitting portion on the rubber boot side by molding the whole or a part of it from transparent silicone or rubber. Note that if the light-transmitting portion on the rubber boot side is a rubber through-hole 13a, it is easier to provide a light-transmitting portion on the rubber boot side compared to other light-transmitting portions on the rubber boot side.

[0079] In the above embodiment, the plurality of separate carriers 12 consist of two types: a first separate carrier 12A and a second separate carrier 12B, each with a different rotatable angle. However, the embodiment is not limited to this. For example, the plurality of separate carriers 12 may consist of a single separate carrier 12 with a constant rotatable angle, or it may consist of three or more types of separate carriers 12, each with a different rotatable angle.

[0080] In the above embodiment, the wire harness 10 is configured to include one light-emitting member 14, but it is not limited to this configuration and may include multiple light-emitting members 14. For example, the light-emitting members 14 may be fixed to two or three separate carriers 12.

[0081] In the above embodiment, the wire harness 10 is provided with a rubber boot 13, but it is not limited to this, and a configuration without a rubber boot 13 is also possible. That is, a configuration in which multiple separate carriers 12 are exposed to the outside is also possible.

[0082] In the above embodiment, the light-emitting member 14 is an LED substrate on which LED elements are mounted, but it is not limited to this, and may be other light-emitting members 14 such as a light bulb. The embodiments disclosed herein are illustrative in all respects, and the present invention is not limited to these examples. That is, the scope of the present invention is indicated by the claims, and all modifications within the meaning and scope equivalent to the claims are intended. [Explanation of Symbols]

[0083] 1. Lighting System 10 Wire Harnesses 11 wire group 12 Separate Conveyor 12A First Separate Vehicle 12B Second Separate Beacon 13 Rubber boots 13a Rubber through hole 14 Light-emitting element 15 Separate Carrier Body 15a Rotating shaft section 15b Rotated shaft part 16 Beacon Cover 16a Through hole (light transmitting part) 17 lenses 18 potting material 19 Power line 20 car bodies 21 Opening 22 Steps for boarding and alighting 30 Sliding Door 31 Door trim 40 switches 100 Power supply control device F Floor H1 Irradiation Range H2 irradiation range X intermediate range Z-shaped line to prevent overhang

Claims

1. A wire harness comprising a group of electric wires routed from the vehicle body to a sliding door that can be opened and closed relative to the vehicle body, The system includes a light-emitting member that is configured to change direction according to the open or closed state of the sliding door, capable of illuminating the floor inside the vehicle interior around the sliding door when the sliding door is fully closed, and capable of illuminating the area outside the vehicle interior around the sliding door when the sliding door is fully open. Wire harness.

2. The system includes a plurality of separate carriers that cover the group of electric wires and are arranged in parallel along the direction of extension of the group of electric wires, and are rotatably connected to one another. The light-emitting member is fixed to at least one of the plurality of separate carriers. The wire harness according to claim 1.

3. Each of the plurality of separate carriers has a U-shaped separate carrier body with an opening on one side in a direction intersecting the direction in which the group of electric wires extends, and a carrier cover fixed to close the opening of the separate carrier body. The light-emitting member is fixed to the cover. The wire harness according to claim 2.

4. The aforementioned cover has a light-transmitting portion, The light-emitting member is positioned inside the separate carrier so as to illuminate the outside from the light-transmitting portion, and is fixed to the carrier cover by a potting material. The wire harness according to claim 3.

5. The light-emitting member is positioned outside the vehicle body, beyond the boarding / alighting step provided at the corresponding location on the vehicle body, when the sliding door is fully open. The wire harness according to claim 1.

6. The light-emitting member is configured to be positioned above the floor when the sliding door is fully closed. The wire harness according to claim 1.

7. A wire harness according to any one of claims 1 to 6, The system includes a power control device that supplies power to the light-emitting member when the sliding door is fully closed and when the sliding door is fully open. Lighting system.

8. The power supply control device stops supplying power to the light-emitting member after a preset time has elapsed since the sliding door was fully closed. The lighting system according to claim 7.

9. The system includes a switch that can switch between supplying and stopping power to the light-emitting element after a predetermined time has elapsed since the sliding door was fully closed. The lighting system according to claim 8.

10. The power control device supplies power to the light-emitting member even while the sliding door is in operation. The lighting system according to claim 7.

11. The power control device supplies power to the light-emitting member during the operation of the sliding door in such a way that it lights up differently when the sliding door is fully closed and when the sliding door is fully open. The lighting system according to claim 10.