Cabling structure

Abstract

To provide a routing structure capable of suppressing the tapering-off shape of an energization member.SOLUTION: A routing structure 1 comprises: an exterior member 30 which includes a first stationary portion fixed to a vehicle body of a vehicle, a second stationary portion fixed to a slide body 210 that moves along a vehicle longitudinal direction relative to an aperture provided on a roof of the vehicle body, a first end part held by the first stationary portion, and a second end part held by the second stationary portion; a wire W inserted into the exterior member; and an energization member 50 which is inserted into the exterior member and forms a curved portion that curves toward the vehicle longitudinal direction between the first end part and the second end part in the exterior member. The energization member has a rod-like first member 51 and a tabular second member 52 for supporting the wire and the first member.SELECTED DRAWING: Figure 3

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] The inventors of the present application have considered disposing a rigid biasing member inside an exterior member in a wiring structure between a vehicle body and a slide body. Here, from the viewpoint of ensuring the durability of the biasing member against bending, it is preferable to reduce the rigidity of the biasing member. On the other hand, when a curved portion is formed in the exterior member and the biasing member, if the rigidity of the biasing member is low, the curved portion is likely to have a tapered shape. A tapered shape of the curved portion leads to a reduction in the bending radius of the electric wire.

[0005] An object of the present invention is to provide a wiring structure that can prevent the biasing member from tapering. [Means for solving the problem]

[0006] The cable routing structure of the present invention includes a first fixing portion fixed to the vehicle body of a vehicle, a second fixing portion fixed to a slide body that moves along the vehicle longitudinal direction with respect to an opening provided in the roof of the vehicle body, a first end portion held by the first fixing portion, a second end portion held by the second fixing portion, an exterior member having these, an electric wire inserted through the exterior member, and a biasing member inserted through the exterior member and forming a curved portion that curves in the vehicle longitudinal direction between the first end portion and the second end portion in the exterior member. The biasing member is characterized by having a rod-shaped first member and a plate-shaped second member that supports the electric wire and the first member.

Advantages of the Invention

[0007] The biasing member of the cable routing structure according to the present invention has a rod-shaped first member and a plate-shaped second member that supports the electric wire and the first member. The rod-shaped first member has higher durability against bending compared to the plate-shaped member for the same bending rigidity. That is, the rod-shaped first member can have high bending rigidity while ensuring durability. According to the cable routing structure of the present invention, there is an effect that the tapered shape of the biasing member can be suppressed.

Brief Description of the Drawings

[0008]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Modes for Carrying Out the Invention

[0009] Hereinafter, the cable routing 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 by this embodiment. Also, the constituent elements in the following embodiments include those that can be easily assumed by those skilled in the art or those that are substantially the same.

[0010] [Embodiment] Embodiments will be described with reference to FIGS. 1 to 6. This embodiment relates to a cable routing structure. FIGS. 1 and 2 are side views of the cable routing structure according to the embodiment, FIG. 3 is a cross-sectional view of the cable routing structure according to the embodiment, FIG. 4 is a side view of the cable routing structure according to the embodiment, FIG. 5 is a diagram for explaining a tapered shape, and FIG. 6 is a side view of the cable routing structure according to the embodiment. In FIG. 3, the III-III cross section of FIG. 4 is shown.

[0011] As shown in FIG. 1, the cable routing structure 1 of the embodiment is applied to the sunroof 200 of the 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 slide body 210, rails 220, and a cable routing structure 1. The slide body 210 is a member that slides along the vehicle front-rear direction X with respect to the opening 120a. The slide body 210 of the present embodiment is a plate-like member that closes or opens the opening 120a. The slide body 210 may be glass configured to transmit light.

[0013] The sunroof 200 has a mechanism such as a link mechanism that moves the slide body 210 along a predetermined path, and a drive source such as a motor that operates the above mechanism. The sunroof 200 moves the slide body 210 between a fully closed position that closes the opening 120a and a fully open position that opens the opening 120a. FIG. 1 shows the slide body 210 in the fully closed position. FIG. 2 shows the slide body 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 slide body 210 and guides this mechanism in the vehicle longitudinal direction X. The rail 220 further supports the exterior member 30 and forms a first extending portion 31 on the exterior member 30.

[0015] The sunroof 200 of the present embodiment moves the slide body 210 along the path AR0 shown in FIG. 2. The movement of the slide body 210 along the path AR0 includes movement along the vehicle longitudinal direction X and movement along the vehicle vertical direction Y. When the slide body 210 moves from the fully closed position toward the fully open position, as shown by the arrow AR1 in FIG. 2, the slide body 210 moves upward Y1 in the vehicle vertical direction Y and moves rearward X2 in the vehicle longitudinal direction X.

[0016] Conversely, when the slide body 210 moves from the fully open position toward the fully closed position, the slide body 210 moves forward X1 in the vehicle longitudinal direction X and moves downward Y2 in the vehicle vertical direction Y.

[0017] As shown in FIGS. 1 to 3, the cable 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 routed between the vehicle body 110 and the slide body 210.

[0018] The first fixing part 10 is a member fixed to the vehicle body 110 of the vehicle 100. The first fixing part 10 may be a protector for protecting the electric wire W. The first fixing part 10 is formed of, for example, an insulating synthetic resin. The first fixing part 10 has a space in which the electric wire W is routed, and has a holding structure for holding the exterior member 30.

[0019] The second fixing part 20 is a member fixed to the slide body 210 of the sunroof 200. The second fixing part 20 may be a protector for protecting the electric wire W. The second fixing part 20 is formed of, for example, an insulating synthetic resin. The second fixing part 20 has a space in which the electric wire W is routed, and has a holding structure for holding the exterior member 30.

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

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

[0022] The second fixing part 20 holds the second end portion 30b so that the exterior member 30 extends in the vehicle longitudinal direction X along the slide body 210 from the second fixing part 20. In the second fixing part 20 of the present embodiment, the second end portion 30b is held so that the exterior member 30 extends forward toward the front side X1 from the second fixing part 20.

[0023] The exterior member 30 has the electric wire W and the biasing member 50 inserted therethrough. The electric wire W is, for example, a coated electric wire having a stranded wire and a coating. The electric wire W may be a flat wiring material, a printed circuit body, or other circuit bodies. The electric wire W drawn from the first end portion 30a is connected to a power source or a control device disposed on the vehicle body 110. The electric wire W drawn from the second end portion 30b is connected to a load disposed on the side of the slide body 210. The load disposed on the slide body 210 may be, for example, a lighting device, a dimming film disposed on the glass of the slide body 210, or other electrical loads.

[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 portion 30a and the second end portion 30b. The curved portions 33, 34 are formed by the biasing member 50. The curved portion 33 shown in FIG. 1 is a curved portion formed on the exterior member 30 with the slide body 210 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 on the exterior member 30 with the slide body 210 in the fully open position. The curved portion 34 has a radius R2. The electric wire W formed with the curved portions 33, 34 has a U-shape or a J-shape.

[0025] As shown in FIG. 1, when the slide body 210 is in the fully closed position, the distance of the second end portion 30b with respect to the first end portion 30a along the vehicle vertical direction Y is the first distance L1. The radius R1 of the curved portion 33 is half the size of the first distance L1.

[0026] As shown in FIG. 2, when the slide body 210 is in the fully open position, the distance of the second end portion 30b with respect to the first end portion 30a along the vehicle vertical direction Y is the second distance L2. The radius R2 of the curved portion 34 is half the size of 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 slide body 210 is at the fully closed position is smaller than the radius R2 of the curved portion 34 when the slide body 210 is at the fully open position. Also, the radius R1 when the slide body 210 is at the fully closed position is smaller than the radius of the curved shape formed in the biasing member 50 when the slide body 210 is at other positions. In other words, the size of the radius of the curved shape formed in the biasing member 50 is minimized when the slide body 210 is at the fully closed position.

[0028] The second end portion 30b of the exterior member 30 moves together with the slide body 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 slide body 210. As shown in FIGS. 1 and 2, the biasing member 50 forms curved portions 33, 34 that curve in the vehicle longitudinal direction X between the first end portion 30a and the second end portion 30b of the exterior member 30.

[0030] As shown in FIG. 3, the cross-sectional shape of the exterior member 30 of this embodiment is rectangular. The biasing member 50 includes a rod-shaped first member 51 and a plate-shaped second member 52. The first member 51 and the second member 52 are members that can be elastically deformed and are formed of, for example, metal or resin.

[0031] The first member 51 is a rod-shaped member that extends along the electric wire W. The first member 51 is arranged, for example, over the entire length of the exterior member 30 from the first end portion 30a to the second end portion 30b. The illustrated first member 51 is a round bar having a circular cross-sectional shape.

[0032] The second member 52 is a plate-shaped member that supports the electric wire W and the first member 51. The second member 52 is disposed, for example, along the entire length of the exterior member 30 from the first end portion 30a to the second end portion 30b. The illustrated shape of the second member 52 is a flat plate shape with a rectangular cross-section. The second member 52 extends in the interior space of the exterior member 30 from one end to the other end in the width direction H. The second member 52 faces each of the plurality of electric wires W and the first member 51 in the vehicle vertical direction Y. In other words, the second member 52 has a width capable of supporting the first member 51 and the plurality of electric wires W.

[0033] The second member 52 in FIG. 3 is disposed inside with respect to the first member 51 and the electric wire W. Therefore, in the curved portions 33, 34, the second member 52 is located radially inward with respect to the first member 51 and the electric wire W.

[0034] As shown in FIG. 4, the exterior member 30, the electric wire W, and the biasing member 50 are routed in a U-shaped or J-shaped curved state. That is, the biasing member 50 extends from the first fixing portion 10 to the second fixing portion 20 in a state having the curved portion 54.

[0035] The biasing member 50 bent so as to have the curved portion 54 applies a pressing force F1 and a pressing force F2 to the exterior member 30. The pressing force F1 is a force in the vehicle vertical direction Y and presses the exterior member 30 toward the rail 220. The pressing force F2 is a force in the vehicle vertical direction Y and presses the exterior member 30 toward the slide body 210. The pressing forces F1, F2 are restoring forces generated in the bent biasing member 50.

[0036] The pressing forces F1, F2 are forces including the restoring force of the first member 51 and the restoring force of the second member 52. That is, in the wiring structure 1 of the present embodiment, the exterior member 30 is pressed toward the slide body 210 and the rail 220 by the combined restoring force of the two members 51, 52.

[0037] The pressing force F1 forms the first extending portion 31 on the exterior member 30. The pressing force F2 forms the second extending portion 32 on the exterior member 30. As shown in FIG. 2 and the like, the second extending portion 32 is a portion that extends along the vehicle compartment side surface 210a of the slide body 210. The vehicle compartment side surface 210a is a surface facing the lower side Y2. When the vehicle compartment side surface 210a is a flat surface, the second extending portion 32 is formed linearly. When the vehicle compartment side surface 210a has a curved shape, the second extending portion 32 has a curved shape along the vehicle compartment side surface 210a.

[0038] The biasing member 50 of the present embodiment is configured to press the exterior member 30 toward the slide body 210 when the slide body 210 is in the fully closed position and when the slide body 210 is in the fully open position, respectively. In other words, the biasing member 50 has a rigidity that can constantly press and contact the exterior member 30 toward the slide body 210. Therefore, the cable structure 1 of the present embodiment can stabilize the shape of the exterior member 30. The biasing member 50 can contact the exterior member 30 with the slide body 210 against external forces such as vibrations generated during traveling, for example.

[0039] As will be described below, the cable structure 1 of the present embodiment can suppress the tapered shape of the biasing member 50 at the curved portion. With reference to FIG. 5, the tapered shape will be described. FIG. 5 shows the tapered shape formed in the biasing member 150 of the comparative example. The biasing member 150 of the comparative example has the same plate shape as the second member 52. The biasing member 150 of the comparative example does not include a rod-shaped member like the first member 51. The biasing member 150 is formed with a curved portion 151 and a straight portion 152. The straight portion 152 is a portion that extends linearly and is formed along each of the slide body 210 and the rail 220.

[0040] The bent portion 151 has a tip portion 151a and two end portions 151b. The tip portion 151a is the central portion of the bent portion 151 and has a convex shape facing in the vehicle longitudinal direction X. The end portion 151b is the end portion of the bent portion 151 in the vehicle vertical direction Y and is the portion connected to the straight portion 152. The bent portion 151 has a tapered shape. More specifically, the shape of the bent portion 151 is such that the bending radius becomes smaller as it approaches the tip portion 151a from the end portion 151b.

[0041] FIG. 5 shows a virtual circle IC. The virtual circle IC is a circle having a diameter equal to the distance L0 in the vehicle vertical direction Y from the rail 220 to the slide body 210. The bending radius of the tip portion 151a is smaller than the radius of the virtual circle IC. In the tapered-shaped bent portion 151, the bending radius of the tip portion 151a is smaller than that of the end portion 151b. When the rigidity of the biasing member 150 is small, such a tapered shape is likely to be formed in the bent portion 151.

[0042] As a means for suppressing the generation of the tapered shape, it is conceivable to increase the thickness of the plate-shaped biasing member 150 to increase the rigidity of the biasing member 150. On the other hand, increasing the thickness of the biasing member 150 may cause a decrease in the durability against bending in the biasing member 150.

[0043] In the cable routing structure 1 of the present embodiment, the biasing member 50 includes a rod-shaped first member 51. When a rod-shaped member and a plate-shaped member have the same bending rigidity, the rod-shaped member has higher durability against bending compared to the plate-shaped member. In other words, the rod-shaped member can have higher rigidity while ensuring the same durability against bending as the plate-shaped member. Therefore, the cable routing structure 1 of the present embodiment can suppress the tapered shape of the biasing member 50 in the bent portion.

[0044] Further, the routing structure 1 of the present embodiment has a plate-shaped second member 52 that supports the electric wire W and the first member 51. The second member 52 can suppress displacement of the first member 51 and torsion between the first member 51 and the electric wire W. When the slide body 210 moves, the first member 51 slides with respect to the exterior member 30 and the electric wire W. Also, due to vibrations during the running of the vehicle 100, the first member 51 slides with respect to the exterior member 30 and the electric wire W. If displacement of the first member 51 due to such sliding or torsion between the first member 51 and the electric wire W occurs, there is a possibility that the biasing members 50 cannot generate sufficient pressing forces F1, F2.

[0045] In the biasing member 50 of the present embodiment, the second member 52 supports the first member 51, and can stabilize the posture and shape of the first member 51. Also, by the second member 52 supporting both the electric wire W and the first member 51, torsion between the first member 51 and the electric wire W is less likely to occur. Therefore, the routing structure 1 of the present embodiment can suppress variations in the spring performance of the biasing member 50 and suppress the tapered shape of the biasing member 50 at the curved portion.

[0046] In the biasing member 50, the rigidity of the first member 51 against bending may be greater than the rigidity of the second member 52 against bending. In this case, the first member 51 can regulate the tapered shape in the second member 52. As shown in FIG. 6, at the curved portions 33, 34, the first member 51 is located radially outside the second member 52.

[0047] A curved portion 51c is formed in the first member 51, and a curved portion 52c is formed in the second member 52. The first member 51, which is relatively rigid, can suppress the tapered shape of the curved portion 52c in the second member 52. In FIG. 6, the curved portion 52d indicated by the dashed-dotted line is the curved portion formed in the second member 52 when the first member 51 is not present. The curved portion 52d has a tapered shape. The first member 51 supports the second member 52 from the outside in the radial direction to suppress the tapered shape. By suppressing the tapered shape of the second member 52, a decrease in the bending radius of the electric wire W is suppressed.

[0048] As described above, the wiring structure 1 of the present embodiment includes a first fixing part 10, a second fixing part 20, an exterior member 30, an electric wire W, and a biasing member 50. The first fixing part 10 is fixed to the vehicle body 110 of the vehicle 100. The second fixing part 20 is fixed to the slide body 210. The slide body 210 moves along the vehicle longitudinal direction X with respect to an 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 part 10 and a second end portion 30b held by the second fixing part 20. The electric wire W and the biasing member 50 are inserted through the exterior member 30.

[0049] The biasing member 50 forms a curved portion that curves in the vehicle longitudinal direction X between the first end portion 30a and the second end portion 30b of the exterior member 30. The biasing member 50 has a rod-shaped first member 51 and a plate-shaped second member 52 that supports the electric wire W and the first member 51. The rod-shaped first member 51 has higher durability against bending than a plate-shaped member for the same bending rigidity. Therefore, the wiring structure 1 of the present embodiment can suppress the tapered shape of the biasing member 50 at the curved portion.

[0050] The bending rigidity of the first member 51 may be greater than the bending rigidity of the second member 52. In this case, the first member 51 may be arranged radially outside the second member 52 at the curved portion. The first member 51 arranged outside can suppress the tapered shape of the second member 52 at the curved portion.

[0051] Note that the electric wire W and the first member 51 may be arranged radially inside the second member 52. The exterior member 30 is not limited to a so-called corrugated tube. The exterior member 30 may be a braided tube or a member used as other exterior members.

[0052] The cross-sectional shape of the rod-shaped first member 51 is not limited to a circular shape. The cross-sectional shape of the first member 51 may be a polygon or other shapes. The biasing member 50 may have a plurality of rod-shaped first members 51.

[0053] The content disclosed in the above embodiments can be executed by being appropriately combined.

Explanation of Signs

[0054] 1: Cable laying structure 10: First fixing part, 20: Second fixing part 30: Exterior member, 30a: First end, 30b: Second end 33, 34: Curved parts 50: Biasing member, 51: First member, 52: Second member 54: Curved part 100: Vehicle, 110: Vehicle body, 120: Roof, 120a: Opening 200: Sunroof, 210: Slide body, 220: Rail L1: First distance, L2: Second distance R1, R2: Radii of the curved parts W: Electric wire X: Vehicle longitudinal direction, Y: Vehicle vertical direction

Claims

1. a first fixing portion fixed to the vehicle body of the vehicle; a second fixing portion fixed to a slide body that moves along the vehicle longitudinal direction with respect to an opening provided in the 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; an electric wire inserted through the exterior member; a biasing member inserted through the exterior member and forming a curved portion that curves in the vehicle longitudinal direction between the first end portion and the second end portion of the exterior member; comprising; the biasing member has a rod-shaped first member and a plate-shaped second member that supports the electric wire and the first member A wiring structure characterized by the above.

2. The bending rigidity of the first member is greater than the bending rigidity of the second member, The first member is located radially outside the second member at the curved portion The wiring structure according to claim 1.

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