Wiring structure

Abstract

To provide a routing structure capable of suppressing a deterioration in durability of an electric wire against bending.SOLUTION: A routing structure 1 includes: a first fixing part fixed to a vehicle body of a vehicle; a second fixing part fixed to a slide body that moves along a vehicular front-back direction with respect to an opening provided to a roof of the vehicle body; an exterior member 30 having a first end held by the first fixing part and a second end held by the second fixing part; and a plurality of electric wires W inserted through the exterior member. The first fixing part and the second fixing part hold the exterior member so as to form a curved portion in which the exterior member is curved in a vehicular front-back direction between the first end and the second end. The plurality of electric wires W have a stranded wire portion Wt extending inside the exterior member, and the plurality of electric wires W are twisted together in the stranded wire portion.SELECTED DRAWING: Figure 5

Description

[Technical Field]

[0001] The present invention relates to a wiring structure. [Background technology]

[0002] Patent Document 1 discloses a power supply device for a sliding body, which includes a vehicle body, a sliding body that is slidably provided on the vehicle body and that opens and closes an opening formed on the vehicle body, and a wire harness that is routed across the vehicle body. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2011-151906 Summary of the Invention [Problem to be solved by the invention]

[0004] Here, when the electric wire is bent in the narrow space between the car body and the sliding body, the bending durability of the electric wire is easily affected. It is desirable to be able to suppress a decrease in the bending durability of the electric wire routed between the car body and the sliding body.

[0005] An object of the present invention is to provide a wiring structure capable of suppressing a decrease in the bending durability of an electric wire. [Means for solving the problem]

[0006] The wiring structure of the present invention includes an exterior member having a first fixed portion fixed to the body of a vehicle, a second fixed portion fixed to a sliding body that moves in the fore-and-aft direction of the vehicle relative to an opening provided in the roof of the vehicle, a first end portion held by the first fixed portion and a second end portion held by the second fixed portion, and a plurality of electric wires inserted into the exterior member, wherein the first fixed portion and the second fixed portion hold the exterior member so that a curved portion that curves in the fore-and-aft direction of the vehicle is formed between the first end portion and the second end portion, and the plurality of electric wires have a twisted wire portion extending inside the exterior member, and the plurality of electric wires are twisted together in the twisted wire portion. [Effects of the Invention]

[0007] In the wiring structure according to the present invention, the plurality of electric wires have a stranded wire portion extending inside the exterior member. According to the wiring structure according to the present invention, the stranded wire portion can expand and contract so as to increase or decrease the pitch, thereby following the deformation of the exterior member. Therefore, the wiring structure according to the present invention has an effect of suppressing a decrease in the bending durability of the electric wires. [Brief explanation of the drawings]

[0008] [Figure 1] FIG. 1 is a side view of a wiring structure according to an embodiment. [Figure 2] FIG. 2 is a side view of the wiring structure according to the embodiment. [Figure 3] FIG. 3 is a cross-sectional view of the wiring structure according to the embodiment. [Figure 4] FIG. 4 is a side view of the wiring structure according to the embodiment. [Figure 5] FIG. 5 is a plan view of the electric wires disposed in the biasing member. [Figure 6] FIG. 6 is a diagram showing the stranded wire portion in the second shape. [Figure 7] FIG. 7 is a plan view of the electric wires disposed in the biasing member. [Figure 8] FIG. 8 is a diagram showing the electric wires connected to the power supply side device. [Figure 9]FIG. 9 shows the electrical wires connected to the slider device. [Figure 10] FIG. 10 is a diagram showing a third shape of the stranded wire portion. [Figure 11] FIG. 11 is a cross-sectional view of the wiring structure according to the embodiment. [Figure 12] FIG. 12 is a diagram showing a fourth shape of the stranded wire portion. DETAILED DESCRIPTION OF THE INVENTION

[0009] Hereinafter, a wiring structure according to an embodiment of the present invention will be described in detail with reference to the drawings. Note that the present invention is not limited to the embodiment. Furthermore, the components in the following embodiments include those that can be easily imagined by a person skilled in the art or those that are substantially the same.

[0010] [Embodiment] An embodiment will be described with reference to FIGS. 1 to 12. This embodiment relates to a wiring structure. FIGS. 1 and 2 are side views of the wiring structure according to the embodiment, FIG. 3 is a cross-sectional view of the wiring structure according to the embodiment, FIG. 4 is a side view of the wiring structure according to the embodiment, FIG. 5 is a plan view of the electric wires arranged in the biasing member, FIG. 6 is a diagram showing a second-shaped stranded wire portion, FIG. 7 is a plan view of the electric wires arranged in the biasing member, FIG. 8 is a diagram showing the electric wires connected to a device on the power supply side, FIG. 9 is a diagram showing the electric wires connected to a device on the sliding body, FIG. 10 is a diagram showing a third-shaped stranded wire portion, FIG. 11 is a cross-sectional view of the wiring structure according to the embodiment, and FIG. 12 is a diagram showing a fourth-shaped stranded wire portion. FIG. 3 shows a cross section taken along line III-III of FIG. 4.

[0011] As shown in FIG. 1, the wiring structure 1 of the embodiment is applied to a sunroof 200 of a vehicle 100. The vehicle 100 is, for example, an automobile equipped with a power source such as a motor or an engine. The vehicle 100 has a vehicle body 110. The vehicle body 110 has a roof 120 that covers the passenger compartment. The roof 120 has an opening 120a that opens upward.

[0012] The vehicle 100 has a sunroof 200 that opens and closes the opening 120a. The sunroof 200 has a slider 210, a rail 220, and a wiring structure 1. The slider 210 is a member that slides relative to the opening 120a along the vehicle longitudinal direction X. In this embodiment, the slider 210 is a plate-like member that closes or opens the opening 120a. The slider 210 may be glass that is configured to allow light to pass through.

[0013] The sunroof 200 has a mechanism such as a link mechanism that moves the slider 210 along a predetermined path, and a drive source such as a motor that operates the mechanism. The sunroof 200 moves the slider 210 between a fully closed position that closes the opening 120a and a fully open position that opens the opening 120a. Figure 1 shows the slider 210 in the fully closed position. Figure 2 shows the slider 210 in the fully open position.

[0014] The rail 220 is fixed to the vehicle body 110. The rail 220 extends in the vehicle longitudinal direction X. The rail 220 supports a mechanism that moves the slider 210 and guides this mechanism in the vehicle longitudinal direction X. The rail 220 further supports the exterior member 30 and forms a linear first extending portion 31 on the exterior member 30.

[0015] The sunroof 200 of this embodiment moves the slider 210 along a path AR0 shown in Fig. 2. The movement of the slider 210 along the path AR0 includes movement along the vehicle longitudinal direction X and movement along the vehicle vertical direction Y. When the slider 210 moves from the fully closed position to the fully open position, as shown by arrow AR1 in Fig. 2, the slider 210 moves toward an upper side Y1 in the vehicle longitudinal direction Y and toward a rear side X2 in the vehicle longitudinal direction X.

[0016] Conversely, when the slider 210 moves from the fully open position to the fully closed position, the slider 210 moves toward the front side X1 in the vehicle longitudinal direction X and toward the lower side Y2 in the vehicle vertical direction Y.

[0017] 1 to 3, the wiring structure 1 has a first fixing portion 10, a second fixing portion 20, an exterior member 30, an electric wire W, and a biasing member 50. The exterior member 30 and the electric wire W constitute a wire harness that is wired between the vehicle body 110 and the sliding body 210.

[0018] The first fixing part 10 is a member fixed to the body 110 of the vehicle 100. The first fixing part 10 of this embodiment is fixed to the rail 220. The first fixing part 10 may be a protector that protects the electric wires W. The first fixing part 10 is molded from, for example, an insulating synthetic resin. The first fixing part 10 has a space in which the electric wires W are routed, and has a holding structure that holds the exterior member 30.

[0019] The second fixing portion 20 is a member fixed to the sliding body 210 of the sunroof 200. The second fixing portion 20 may be a protector that protects the electric wires W. The second fixing portion 20 is molded from, for example, an insulating synthetic resin. The second fixing portion 20 has a space in which the electric wires W are routed, and has a holding structure that holds the exterior member 30.

[0020] The exterior member 30 is an elastically deformable cylindrical member. The exterior member 30 is, for example, a member called a corrugated tube. The exterior member 30 is molded from, for example, an insulating synthetic resin. The exterior member 30 may have a bellows shape.

[0021] The exterior member 30 has a first end 30a held by the first fixing portion 10 and a second end 30b held by the second fixing portion 20. The first fixing portion 10 holds the first end 30a so that the exterior member 30 extends from the first fixing portion 10 along the rail 220 in the vehicle front-rear direction X. The first fixing portion 10 of the present embodiment holds the first end 30a so that the exterior member 30 extends from the first fixing portion 10 toward the front side X1.

[0022] The second fixing portion 20 holds the second end portion 30b so that the exterior member 30 extends from the second fixing portion 20 along the slide body 210 in the vehicle front-rear direction X. The second fixing portion 20 of the present embodiment holds the second end portion 30b so that the exterior member 30 extends from the second fixing portion 20 toward the front side X1.

[0023] A plurality of electric wires W and a biasing member 50 are inserted through the exterior member 30. The electric wires W are, for example, coated electric wires having twisted wires and a coating. The electric wires W drawn out from the first end 30a are connected to a power source and a control device arranged in the vehicle body 110. The electric wires W drawn out from the second end 30b are connected to a load arranged on the side of the sliding body 210. The load arranged on the sliding body 210 may be, for example, a lighting device, a light control film arranged on the glass of the sliding body 210, or another electric load.

[0024] As shown in FIGS. 1 and 2, the exterior member 30 has curved portions 33, 34 that curve in the vehicle longitudinal direction X between the first end 30a and the second end 30b. The curved portions 33, 34 are formed, for example, by a biasing member 50. The curved portion 33 shown in FIG. 1 is a curved portion formed in the exterior member 30 when the sliding body 210 is in the fully closed position. The curved portion 33 has a radius R1. The curved portion 34 shown in FIG. 2 is a curved portion formed in the exterior member 30 when the sliding body 210 is in the fully open position. The curved portion 34 has a radius R2. The electric wire W on which the curved portions 33, 34 are formed has a U-shape or a J-shape.

[0025] 1, when the slider 210 is in the fully closed position, the distance between the first end 30a and the second end 30b in the vehicle vertical direction Y is a first distance L1. The radius R1 of the curved portion 33 is half the first distance L1.

[0026] 2, when the slider 210 is in the fully open position, the distance between the first end 30a and the second end 30b in the vehicle vertical direction Y is a second distance L2. The radius R2 of the curved portion 34 is half the second distance L2.

[0027] In the sunroof 200 of this embodiment, the second distance L2 at the fully open position is greater than the first distance L1 at the fully closed position. Therefore, the radius R1 of the curved portion 33 when the sliding body 210 is in the fully closed position is smaller than the radius R2 of the curved portion 34 when the sliding body 210 is in the fully open position. Furthermore, the radius R1 when the sliding body 210 is in the fully closed position is smaller than the radius of the curved shape formed in the biasing member 50 when the sliding body 210 is in another position. In other words, the magnitude of the radius of the curved shape formed in the biasing member 50 is smallest when the sliding body 210 is in the fully closed position.

[0028] The second end 30b of the exterior member 30 moves together with the slider 210. At this time, the exterior member 30 follows the movement of the second fixing portion 20 while gradually changing the position where the curved shape is formed.

[0029] The biasing member 50 of this embodiment is a member that presses the exterior member 30 toward the slider 210. The biasing member 50 of this embodiment is a plate-shaped member that is elastically deformable. The biasing member 50 is made of metal or resin.

[0030] As shown in FIG. 3 , the cross-sectional shape of the exterior member 30 of this embodiment is rectangular. The exemplified biasing member 50 has a flat plate shape. In the biasing member 50, the cross-sectional shape perpendicular to the axial direction of the biasing member 50 is rectangular. The biasing member 50 extends from one end to the other end in the width direction H in the internal space of the exterior member 30. The biasing member 50 faces each of the multiple electric wires W in the vehicle up-down direction Y. In other words, the biasing member 50 has a width that can support the multiple electric wires W.

[0031] 3 is disposed on the inner side with respect to the electric wire W. Therefore, at the curved portions 33 and 34, the urging member 50 is located on the inner side in the radial direction with respect to the electric wire W. As shown in FIG. 3, the urging member 50 applies pressing forces F1 and F2 to the exterior member 30.

[0032] 4, the exterior member 30, the electric wire W, and the biasing member 50 are arranged in a U-shaped or J-shaped curve. That is, the biasing member 50 extends from the first fixed portion 10 to the second fixed portion 20 with a curved portion 54.

[0033] The biasing member 50 bent to have the curved portion 54 applies pressing forces F1 and F2 to the exterior member 30. The pressing force F1 is a force in the vehicle's up-down direction Y, and presses the exterior member 30 toward the rail 220. The pressing force F2 is a force in the vehicle's up-down direction Y, and presses the exterior member 30 toward the slider 210. The pressing forces F1 and F2 are restoring forces generated in the bent biasing member 50.

[0034] The pressing force F1 forms a first extension portion 31 in the exterior member 30. The pressing force F2 forms a second extension portion 32 in the exterior member 30. As shown in FIG. 2 and other figures, the second extension portion 32 is a portion that extends along the cabin-side surface 210a of the sliding body 210. The cabin-side surface 210a is a surface that faces the lower side Y2. When the cabin-side surface 210a is flat, the second extension portion 32 is formed in a linear shape. When the cabin-side surface 210a has a curved shape, the second extension portion 32 has a curved shape that follows the cabin-side surface 210a.

[0035] The biasing member 50 of this embodiment is configured to press the exterior member 30 toward the sliding body 210 when the sliding body 210 is in the fully closed position and when the sliding body 210 is in the fully open position. In other words, the biasing member 50 has enough rigidity to constantly press the exterior member 30 toward and keep it in contact with the sliding body 210. Therefore, the wiring structure 1 of this embodiment can stabilize the shape of the exterior member 30. The biasing member 50 can keep the exterior member 30 in contact with the sliding body 210 against external forces such as vibrations that occur during driving, for example.

[0036] As will be described below, in the wiring structure 1 of this embodiment, the multiple electric wires W have a twisted wire portion Wt extending inside the exterior member 30. FIG. 5 shows the biasing member 50 and the multiple electric wires W before they are inserted into the exterior member 30. The multiple electric wires W have the twisted wire portion Wt. In the twisted wire portion Wt, the multiple electric wires W are twisted together. In the wiring structure 1 of this embodiment, two electric wires W are routed between the first fixing portion 10 and the second fixing portion 20. Therefore, the illustrated twisted wire portion Wt is formed by twisting two electric wires W together. The multiple electric wires W have the twisted wire portion Wt extending, for example, from the first fixing portion 10 to the second fixing portion 20.

[0037] The two electric wires W in this embodiment are power lines that supply power to devices arranged on the sliding body 210. In this case, the two electric wires W are connected to a power source of the vehicle 100 on the side of the vehicle body 110. The two electric wires W may be connected to the power source via an electric junction box or the like.

[0038] The multiple electric wires W are arranged in the biasing member 50 so that the stranded wire portion Wt extends along the biasing member 50. The biasing member 50 and the multiple electric wires W are inserted into the exterior member 30. As a result, the stranded wire portion Wt extends inside the exterior member 30. The ends of the exterior member 30 and the biasing member 50 are held by two fixing portions 10, 20. The two fixing portions 10, 20 hold the exterior member 30 so that a curved portion is formed between the first end 30a and the second end 30b of the exterior member 30.

[0039] The stranded wire portion Wt of this embodiment can be transformed between a first shape shown in Fig. 5 and a second shape shown in Fig. 6. The stranded wire portion Wt in the first shape shown in Fig. 5 has a pitch P1. The pitch P1 is the length in the extending direction Ex of the stranded wire portion Wt, which is the length of one electric wire W making one turn around another electric wire W. In other words, the pitch P1 is twice the distance between the intersections Wx when viewed from a direction perpendicular to the extending direction Ex of the stranded wire portion Wt.

[0040] The illustrated stranded wire portion Wt is configured to assume a first shape when no external force is acting on the stranded wire portion Wt in the extension direction Ex. The stranded wire portion Wt in the first shape has an appropriate gap Gp between the two electric wires W. This gap Gp is ​​determined so that the stranded wire portion Wt can stretch when a tensile force is acting on the stranded wire portion Wt.

[0041] As shown in Figure 6, the stranded wire portion Wt in the second shape has a pitch P2. The pitch P2 in the second shape is longer than the pitch P1 in the first shape. In other words, the stranded wire portion Wt in the second shape extends in the extension direction Ex relative to the stranded wire portion Wt in the first shape. When a tensile force F3 acts on the stranded wire portion Wt, the stranded wire portion Wt transitions from the first shape to the second shape.

[0042] 3, in the wiring structure 1 of this embodiment, the electric wires W are arranged outside the biasing member 50 inside the exterior member 30. In this case, when the exterior member 30 and the biasing member 50 are bent into a U-shape, a tensile force F3 acts on the electric wires W. That is, inside the curved portion of the exterior member 30, the tensile force F3 acts on the stranded wire portion Wt. The portion of the stranded wire portion Wt to ​​which the tensile force F3 acts is stretched by the tensile force F3 and assumes a second shape.

[0043] The tensile force F3 is not applied or is small inside the first extension portion 31 and the second extension portion 32 of the exterior member 30. Therefore, the stranded wire portion Wt assumes the first shape inside the first extension portion 31 and the second extension portion 32. When the position of the curved portion in the exterior member 30 moves due to the movement of the slider 210, the position where the stranded wire portion Wt assumes the second shape also moves. In this way, the stranded wire portion Wt can expand and contract depending on the presence or absence of the tensile force F3 and the magnitude of the tensile force F3. The stranded wire portion Wt can absorb the force in the extension direction Ex generated by the deformation of the exterior member 30 and reduce the external force acting on each electric wire W. Therefore, the wiring structure 1 of this embodiment can alleviate the stress generated in the electric wires W and suppress a decrease in the durability of the electric wires W.

[0044] Furthermore, in the stranded wire portion Wt, the plurality of electric wires W are integrated by crossing in a spiral shape. Therefore, compared to when each electric wire W is routed independently inside the exterior member 30, the electric wires W are less likely to get into the gap between the biasing member 50 and the exterior member 30. Therefore, the routing structure 1 of this embodiment can suppress a decrease in durability of the electric wires W due to damage to the electric wires W.

[0045] Note that the portions of the multiple electric wires W that protrude from the exterior member 30 may be routed without being twisted together. FIG. 7 shows electric wires W having untwisted portions. In FIG. 7, the multiple electric wires W have a twisted wire portion Wt, a first protruding portion W1, and a second protruding portion W2. The multiple electric wires W are not twisted together at the first protruding portion W1 and the second protruding portion W2. That is, the individual electric wires W are independent of each other at the first protruding portion W1 and the second protruding portion W2.

[0046] The stranded wire portion Wt is arranged along the biasing member 50. The stranded wire portion Wt in FIG. 7 extends from a first end 50a to a second end 50b of the biasing member 50. The first end 50a of the biasing member 50 is an end that corresponds to the first end 30a of the outer casing 30. The second end 50b of the biasing member 50 is an end that corresponds to the second end 30b of the outer casing 30.

[0047] The stranded wire portion Wt is fixed to the biasing member 50 by, for example, a fixing member 40. The fixing member 40 is disposed, for example, at both ends of the biasing member 50 and the stranded wire portion Wt. The fixing member 40 is, for example, an adhesive tape or a cable tie.

[0048] The first protruding portion W1 and the second protruding portion W2 are portions of the electric wire W that are closer to the distal end than the stranded wire portion Wt. In other words, the stranded wire portion Wt is formed by twisting together portions of the electric wire W between the first protruding portion W1 and the second protruding portion W2. The plurality of electric wires W are arranged such that the first protruding portion W1 protrudes from the first end portion 50a of the urging member 50 and the second protruding portion W2 protrudes from the second end portion 50b of the urging member 50.

[0049] When the biasing member 50 and the electric wire W are inserted into the exterior member 30, the first protrusion W1 protrudes from the first end 30a of the exterior member 30. The second protrusion W2 protrudes from the second end 30b of the exterior member 30. The first protrusion W1 is connected to the power source of the vehicle 100. The second protrusion W2 is connected to a device of the slider 210.

[0050] In the multiple electric wires W, the first protrusions W1 are routed without being twisted together. FIG. 8 shows electric wires W connected to a power supply side device 130 of a vehicle 100. As shown in FIG. 8, the first protrusions W1 are drawn out from the first fixing portion 10. In the first protrusions W1, the portions protruding from the first fixing portion 10 are routed without being twisted together. The multiple electric wires W in the first protrusions W1 may be bundled together using tape or the like. The tip of the first protrusions W1 is connected to the power supply side device 130. The power supply side device 130 is, for example, an electrical junction box.

[0051] In the multiple electric wires W, the second protrusions W2 are routed without being twisted together. FIG. 9 shows electric wires W connected to a device 230 arranged on a slider 210. As shown in FIG. 9, the second protrusions W2 are drawn out from the second fixing portion 20. In the second protrusions W2, the portions protruding from the second fixing portion 20 are routed without being twisted together. The multiple electric wires W in the second protrusions W2 may be bundled together using tape or the like. The tip of the second protrusions W2 is connected to the device 230.

[0052] The stranded wire portion Wt may be configured to contract when subjected to a compressive force in the extension direction Ex. FIG. 10 shows the stranded wire portion Wt in a third shape. The stranded wire portion Wt in FIG. 10 is configured to assume the third shape when no external force in the extension direction Ex is acting on the stranded wire portion Wt. The stranded wire portion Wt in the third shape has a pitch P3. The pitch P3 is, for example, longer than the pitch P1 of the stranded wire portion Wt in the first shape. The pitch P3 may be equal to the pitch P2 of the stranded wire portion Wt in the second shape. The stranded wire portion Wt in FIG. 10 is disposed inside the biasing member 50, as shown in FIG. 11.

[0053] When the stranded wire portion Wt is disposed inside the biasing member 50, a compressive force F4 acts on the electric wire W when the exterior member 30 and the biasing member 50 are bent into a U-shape. The stranded wire portion Wt is compressed by the compressive force F4 and deformed into the fourth shape shown in FIG. 12. The stranded wire portion Wt in the fourth shape has a pitch P4. The pitch P4 of the fourth shape is shorter than the pitch P3 of the third shape. By deforming the stranded wire portion Wt to ​​reduce the pitch, stress generated in the electric wire W is alleviated, and a decrease in the durability of the electric wire W is suppressed.

[0054] The wiring structure 1 does not necessarily have to include the biasing member 50. In this case, the repulsive force of the exterior member 30 and the plurality of electric wires W presses the exterior member 30 toward the slider 210. When the wiring structure 1 does not include the biasing member 50, the plurality of electric wires W may have a fifth-shaped stranded wire portion Wt. The fifth-shaped stranded wire portion Wt can expand to increase the pitch when a tensile force F3 is applied, and can contract to decrease the pitch when a compressive force F4 is applied.

[0055] As described above, the wiring structure 1 of this embodiment has the first fixing portion 10, the second fixing portion 20, the exterior member 30, and a plurality of electric wires W inserted into the exterior member 3. The first fixing portion 10 is fixed to the vehicle body 110 of the vehicle 100. The second fixing portion 20 is fixed to the sliding body 210. The sliding body 210 moves along the vehicle fore-and-aft direction X relative to the opening 120a provided in the roof 120 of the vehicle body 110. The exterior member 30 has a first end portion 30a held by the first fixing portion 10 and a second end portion 30b held by the second fixing portion 20.

[0056] The first fixing portion 10 and the second fixing portion 20 hold the exterior member 30 so that the exterior member 30 forms a curved portion between the first end portion 30a and the second end portion 30b, where the exterior member 30 curves in the vehicle longitudinal direction X. The plurality of electric wires W have a stranded wire portion Wt extending inside the exterior member 30. The plurality of electric wires W are twisted together in the stranded wire portion Wt. According to the wiring structure 1 of this embodiment, when a curved portion is formed in the exterior member 30, the stranded wire portion Wt can expand and contract to increase or decrease the pitch, thereby following the deformation of the exterior member 30. Therefore, the wiring structure 1 of this embodiment can suppress a decrease in durability of the electric wires W due to bending.

[0057] The stranded wire portion Wt may have gaps Gp between the plurality of electric wires W so that the stranded wire portion Wt can stretch in response to the tensile force F3. The stranded wire portion Wt in which gaps Gp are provided in advance between the electric wires W can absorb the tensile force F3 by stretching.

[0058] In the multiple electric wires W, the portions protruding from the outer casing 30 may be routed without being twisted together. For example, the first protruding portion W1 protruding from the first end portion 30a of the outer casing 30 may be routed without being twisted together. For example, the second protruding portion W2 protruding from the second end portion 30b of the outer casing 30 may be routed without being twisted together. Such a configuration can simultaneously suppress a decrease in durability of the electric wires W due to bending and reduce the overall length of the electric wires W.

[0059] The wiring structure 1 may include a biasing member 50 that is inserted into the exterior member 30, and a fixing member 40 that fixes the stranded wire portion Wt to ​​the biasing member 50. The fixing member 40 can control the position of the stranded wire portion Wt to ​​a desired position and can control the pitch of the stranded wire portion Wt to ​​a desired size.

[0060] The exterior member 30 is not limited to a so-called corrugated tube, but may be a braided tube or any other member used as an exterior member.

[0061] When the wiring structure 1 includes the biasing member 50, the shape of the biasing member 50 is not limited to a plate shape. The biasing member 50 may have a rod shape such as a round bar. Instead of being fixed to the biasing member 50, both ends of the stranded wire portion Wt may be fixed to the first fixing portion 10 and the second fixing portion 20.

[0062] The pitch of the stranded wire portions Wt may vary depending on the position in the extending direction Ex. For example, in the outer casing 30, greater expansion and contraction of the stranded wire portions Wt may be permitted in a location where a curved portion with a small radius R is formed than in a location where a curved portion with a large radius R is formed. In the arrangement of the stranded wire portions Wt shown in FIG. 3, a tensile force F3 acts on the stranded wire portions Wt due to the curvature of the outer casing 30. In this case, by reducing the pitch of the stranded wire portions Wt in the first shape, it is possible to increase the allowable amount of expansion when the tensile force F3 acts.

[0063] 11, a compressive force F4 acts on the stranded wire portion Wt due to the curvature of the exterior member 30. In this case, by increasing the pitch of the stranded wire portion Wt in the third shape, it is possible to increase the allowable amount of shrinkage when the compressive force F4 acts.

[0064] The contents disclosed in the above embodiments can be implemented in appropriate combinations. [Explanation of symbols]

[0065] 1: Cable arrangement structure 10: First fixed part, 20: Second fixed part 30: outer casing member, 30a: first end portion, 30b: second end portion 33, 34: Curved section 40: Fixing member 50: biasing member, 54: curved portion 100: vehicle, 110: body, 120: roof, 120a: opening 200: Sunroof, 210: Slide body, 220: Rail F3: Tensile force, F4: Compressive force Gp: Gap H: Width direction L1: first distance, L2: second distance P1, P2, P3, P4: Pitch R1, R2: Radius of the curved part W: Electric wire, Wt: Stranded wire section W1: First protrusion, W2: Second protrusion X: Front-rear direction of the vehicle, Y: Up-down direction of the vehicle

Claims

1. a first fixing portion fixed to a body of a vehicle; a second fixing portion fixed to a sliding body that moves along a front-rear direction of the vehicle relative to an opening provided in a roof of the vehicle body; an exterior member having a first end portion held by the first fixing portion and a second end portion held by the second fixing portion; A plurality of electric wires inserted into the exterior member; Equipped with the first fixing portion and the second fixing portion hold the exterior member such that a curved portion that curves in the vehicle front-rear direction is formed between the first end portion and the second end portion, The plurality of electric wires have a stranded wire portion extending inside the exterior member, In the stranded wire portion, the plurality of electric wires are twisted together. A wiring structure characterized by the above.

2. The stranded wire portion has gaps between the plurality of wires so that the stranded wire portion can be stretched by a tensile force. The wiring structure according to claim 1 .

3. The portions of the plurality of electric wires that protrude from the exterior member are routed without being twisted together. The wiring structure according to claim 1 .

4. a biasing member inserted into the exterior member; a fixing member that fixes the stranded wire portion to the biasing member; The wiring structure according to claim 3 , comprising:

Images