Routing structure

Abstract

To provide a routing structure capable of suppressing a deterioration in durability of an electric wire.SOLUTION: A routing structure 1 includes: a first protector fixed to a vehicle body of a vehicle; a second protector fixed to a slide glass body that moves along a vehicular front-back direction with respect to an opening provided to a roof of the vehicle body; a braided tube 30 having a first end held by the first protector and a second end held by the second protector; a twisted pair cable 40 inserted through the braided tube; and a steel strip 50 inserted through the braided tube and forming a curved portion curved in the vehicular front-back direction between the first end and the second end of the braided tube. The steel strip is a plate-shaped member and has a support surface 50a on which the twisted pair cable is supported, and the twisted pair cable 40 includes two electric wires W that are mutually insulated and are independent of each other, the two electric wires being integrally routed in a spirally crossing manner.SELECTED DRAWING: Figure 3

Description

[Technical field]

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

[0002] Conventionally, there is a wiring structure between a fixed structure and a movable structure. Patent Document 1 discloses a wiring structure of a wire harness including an electric wire having one end electrically connected to an electric component on the fixed structure and the other end electrically connected to an electric component on the movable structure, a metal strip-shaped leaf spring having one end fixed to the fixed structure and the other end fixed to the movable structure, and a fastener for fastening the electric wire to the strip-shaped leaf spring. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2010-195189 A Summary of the Invention [Problem to be solved by the invention]

[0004] In the wiring structure, there is still room for improvement in suppressing deterioration of the durability of the electric wire. For example, in a structure in which an electric wire and a plate-shaped steel strip are inserted into a braided tube, the electric wire may be damaged if it is caught in the gap between the braided tube and the steel strip.

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

[0006] The wiring structure of the present invention includes a first protector fixed to a body of a vehicle, a second protector fixed to a sliding glass body that moves in a longitudinal direction of the vehicle relative to an opening provided in a roof of the vehicle body, a braided tube having a first end held by the first protector and a second end held by the second protector, a twisted pair cable inserted into the braided tube, and a steel band inserted into the braided tube and forming a curved portion curved in the longitudinal direction of the vehicle between the first end and the second end of the braided tube, the steel band being a plate-shaped member and having a support surface that supports the twisted pair cable, and the twisted pair cable is arranged by integrally wiring two electric wires that are insulated from each other and independent of each other, crossing each other in a spiral shape. Effect of the Invention

[0007] In the wiring structure according to the present invention, the twisted pair cable is arranged by integrating two mutually insulated and independent electric wires crossed in a spiral shape. The wiring structure according to the present invention has an effect of suppressing the electric wires from being caught in the gap between the braided tube and the steel band, thereby suppressing a decrease in the durability of the electric wires. [Brief description of the drawings]

[0008] [Figure 1] FIG. 1 is a side view of a wiring structure according to an embodiment. [Diagram 2] FIG. 2 is a side view of the wiring structure according to the embodiment. [Diagram 3] FIG. 3 is a cross-sectional view of the wiring structure according to the embodiment. [Figure 4] FIG. 4 is a plan view of the wiring structure according to the embodiment. [Diagram 5] FIG. 5 is a side view of the wiring structure according to the embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[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. In addition, the components in the following embodiment include those that a person skilled in the art can easily imagine or that are substantially the same.

[0010] [Embodiment] An embodiment will be described with reference to Fig. 1 to Fig. 5. This embodiment relates to a wiring structure. Fig. 1 and Fig. 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 plan view of the wiring structure according to the embodiment, and Fig. 5 is a side view of the wiring structure according to the embodiment. Fig. 3 shows a cross section taken along line III-III in Fig. 5.

[0011] As shown in Fig. 1, a 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 slide glass body 210, a rail 220, and a wiring structure 1. The slide glass body 210 is a member that slides along the vehicle front-rear direction X with respect to the opening 120a. The slide glass body 210 of this embodiment is a plate-like member that closes or opens the opening 120a. The slide glass body 210 may be glass configured to be capable of transmitting light.

[0013] The sunroof 200 has a mechanism such as a link mechanism that moves the glass slide body 210 along a predetermined path, and a drive source such as a motor that operates the mechanism. The sunroof 200 moves the glass 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 glass slide body 210 in the fully closed position. Fig. 2 shows the glass 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 front-rear direction X. The rail 220 supports a mechanism that moves the slide glass body 210 and guides this mechanism in the vehicle front-rear direction X. The rail 220 further supports the braided tube 30 and forms a first extension portion 31 on the braided tube 30.

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

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

[0017] 1 to 3, the wiring structure 1 includes a first protector 10, a second protector 20, a braided tube 30, a twisted pair cable 40, and a steel band 50. The braided tube 30 and the twisted pair cable 40 constitute a wire harness that is wired between a vehicle body 110 and a glass slide body 210.

[0018] The first protector 10 is a member fixed to a vehicle body 110 of the vehicle 100. The first protector 10 is a protective member that protects the twisted pair cable 40. The first protector 10 is molded from, for example, an insulating synthetic resin. The first protector 10 has a space in which the twisted pair cable 40 is routed, and has a holding structure that holds the braided tube 30.

[0019] The second protector 20 is a member fixed to the slide glass body 210 of the sunroof 200. The second protector 20 is a protective member that protects the twisted pair cable 40. The second protector 20 is molded from, for example, an insulating synthetic resin. The second protector 20 has a space in which the twisted pair cable 40 is routed, and has a holding structure that holds the braided tube 30.

[0020] The braided tube 30 is an elastically deformable tubular member. The braided tube 30 is a member formed by braiding fibers of synthetic resin or the like. The braided tube 30 is formed of, for example, insulating synthetic resin.

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

[0022] The second protector 20 holds the second end 30b such that the braided tube 30 extends from the second protector 20 along the slide glass body 210 in the vehicle front-rear direction X. The second protector 20 of the present embodiment holds the second end 30b such that the braided tube 30 extends from the second protector 20 toward the front side X1.

[0023] The twisted pair cable 40 and the steel strip 50 are inserted into the braided tube 30. As shown in FIG. 4, the twisted pair cable 40 of the present embodiment is a twisted wire. The twisted pair cable 40 is configured by twisting and spirally crossing two wires W that are insulated from each other and independent of each other. The wire W is, for example, a covered wire having a stranded wire and a covering. The 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 wire W drawn from the second end portion 30b is connected to a load disposed on the side of the slide glass body 210. The load disposed on the slide glass body 210 may be, for example, a lighting device, a dimming film disposed on the glass of the slide glass body 210, or other electrical loads.

[0024] As shown in FIGS. 1 and 2, the braided tube 30 has curved portions 33 and 34 that curve in the vehicle longitudinal direction X between the first end portion 30a and the second end portion 30b. The curved portion 33 shown in FIG. 1 is a curved portion formed in the braided tube 30 when the slide glass 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 braided tube 30 when the slide glass body 210 is in the fully open position. The curved portion 34 has a radius R2. The braided tube 30 in which the curved portions 33 and 34 are formed has a U shape or a J shape.

[0025] As shown in FIG. 1, when the slide glass body 210 is in the fully closed position, the distance of the second end portion 30b along the vehicle vertical direction Y with respect to the first end portion 30a 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 glass body 210 is in the fully open position, the distance of the second end portion 30b along the vehicle vertical direction Y with respect to the first end portion 30a is the second distance L2. The radius R2 of the curved portion 34 is half the size of the second distance L2.

[0027] The second end 30b of the braided tube 30 moves together with the slide glass body 210. At this time, the braided tube 30 follows the movement of the second protector 20 while gradually changing the position where the curved shape is formed.

[0028] The steel strip 50 of the present embodiment has sufficient rigidity to press the braided tube 30 toward the slide glass body 210. The steel strip 50 is a plate-like member and is elastically deformable. The steel strip 50 is made of a metal such as stainless steel.

[0029] As shown in Fig. 3, the cross-sectional shape of the braided tube 30 of this embodiment is rectangular. The shape of the illustrated steel strip 50 is a flat plate. In the steel strip 50, the cross-sectional shape perpendicular to the axial direction of the steel strip 50 is rectangular. The steel strip 50 extends from one end to the other end in the width direction H in the internal space of the braided tube 30.

[0030] The steel band 50 faces the twisted pair cables 40 in the vehicle vertical direction Y. In other words, the steel band 50 has a width capable of supporting a plurality of twisted pair cables 40. The steel band 50 has a support surface 50a that supports the twisted pair cables 40. The support surface 50a is one of two main surfaces that the steel band 50 has. The support surface 50a in this embodiment is a flat surface.

[0031] The steel band 50 in Fig. 3 is disposed on the outside relative to the twisted pair cable 40. Therefore, at the curved portions 33, 34, the steel band 50 is located on the radially outside relative to the twisted pair cable 40. With this arrangement, the radius of curvature of the twisted pair cable 40 at the curved portions 33, 34 is smaller than the radius of curvature of the steel band 50. As shown in Fig. 3, the steel band 50 comes into contact with the braided tube 30, and applies pressing forces F1, F2 to the braided tube 30 at this contact surface.

[0032] 5, the braided tube 30, the twisted pair cable 40, and the steel band 50 are arranged in a U-shaped or J-shaped curved state. That is, the steel band 50 extends from the first protector 10 to the second protector 20 with a curved portion 54.

[0033] The steel strip 50 bent to have the curved portion 54 applies pressing forces F1 and F2 to the braided tube 30. The pressing force F1 is a force in the vehicle up-down direction Y, and presses the braided tube 30 toward the rail 220. The pressing force F2 is a force in the vehicle up-down direction Y, and presses the braided tube 30 toward the slide glass body 210. The pressing forces F1 and F2 are restoring forces generated in the bent steel strip 50.

[0034] The pressing force F1 forms a first extension portion 31 in the braided tube 30. The pressing force F2 forms a second extension portion 32 in the braided tube 30. As shown in FIG. 2 etc., the second extension portion 32 is a portion that extends along the vehicle interior side surface 210a of the slide glass body 210. The vehicle interior side surface 210a is a surface facing the lower side Y2. When the vehicle interior side surface 210a is a flat surface, the second extension portion 32 is formed in a straight line. When the vehicle interior side surface 210a has a curved shape, the second extension portion 32 has a curved shape that follows the vehicle interior side surface 210a.

[0035] The steel band 50 of this embodiment is configured to press the braided tube 30 toward the slide glass body 210 when the slide glass body 210 is in the fully closed position and when the slide glass body 210 is in the fully open position. In other words, the steel band 50 has a rigidity that allows the braided tube 30 to be constantly pressed toward and in contact with the slide glass body 210. Therefore, the wiring structure 1 of this embodiment can stabilize the shape of the braided tube 30. The steel band 50 can keep the braided tube 30 in contact with the slide glass body 210 against external forces such as vibrations generated during travel, for example.

[0036] As described below, the wiring structure 1 of the present embodiment can suppress the deterioration of the durability of the twisted pair cable 40. As shown in FIG. 4, the twisted pair cable 40 is a twisted wire, and is configured by twisting two electric wires W together and crossing them in a spiral shape. This suppresses the electric wire W from falling off into the gap between the steel band 50 and the braided tube 30. As shown in FIG. 3, a gap Gp is ​​generated between the steel band 50 and the braided tube 30. The gap Gp is ​​a gap between the side of the steel band 50 and the inner side surface 30c of the braided tube 30. If the electric wire W enters the gap Gp, the edge of the steel band 50 may damage the coating of the electric wire W.

[0037] In contrast, the twisted pair cable 40 of this embodiment is a twisted wire that crosses in a spiral shape. Therefore, compared to when the electric wire W is routed alone, the electric wire W is less likely to enter the gap Gp. Even if the electric wire W does enter the gap Gp, the length of the entered portion is small. Furthermore, even if one electric wire W enters the gap Gp, it can be pulled by the other electric wires W and easily come out of the gap Gp. Therefore, according to the routing structure 1 of this embodiment, the electric wire W is less likely to be damaged, and therefore a decrease in the durability of the twisted pair cable 40 is suppressed.

[0038] Furthermore, the twisted pair cable 40 crossed in a spiral shape can absorb the excess length of the electric wires W and can alleviate the tensile force generated in the twisted pair cable 40. When a curve is formed in the braided tube 30 and the twisted pair cable 40 due to the movement of the glass slide body 210, tensile and compressive forces may act on the twisted pair cable 40. The twisted pair cable 40, which is a twisted wire, can absorb these forces.

[0039] As described above, the wiring structure 1 of the present embodiment includes the first protector 10, the second protector 20, the braided tube 30, the twisted pair cable 40, and the steel band 50. The first protector 10 is fixed to the body 110 of the vehicle 100. The second protector 20 is fixed to the slide glass body 210 that moves along the vehicle front-rear direction X relative to the opening 120a provided in the roof 120 of the body 110. The braided tube 30 has a first end 30a held by the first protector 10 and a second end 30b held by the second protector 20.

[0040] The twisted pair cable 40 and the steel band 50 are inserted into the braided tube 30. The steel band 50 is a member that forms curved portions 33, 34 that are curved toward the vehicle front-rear direction X between the first end 30a and the second end 30b of the braided tube 30. The steel band 50 is a plate-shaped member and has a support surface 50a that supports the twisted pair cable 40. The twisted pair cable 40 is arranged by integrating two electric wires W that are insulated from each other and independent of each other and crossed in a spiral shape.

[0041] When two electric wires W are spirally crossed and arranged integrally, the electric wires W are less likely to enter the gap Gp compared to when each electric wire W is arranged independently. Therefore, the wiring structure 1 of the present embodiment can suppress a decrease in durability of the twisted pair cable 40 caused by damage to the electric wires W. The twisted pair cable 40 in which two electric wires W cross each other spirally can reduce the force acting on the electric wires W when a curved portion is formed.

[0042] In the wiring structure 1 of the present embodiment, the twisted pair cable 40 has a smaller radius of curvature at the curved portions 33, 34 than the steel band 50. The support surface 50a of the steel band 50 is the inner surface at the curved portions 33, 34, and supports the twisted pair cable 40 from the outside. This arrangement can adequately protect the electric wires W. Note that the steel band 50 may be arranged on the inner side relative to the twisted pair cable 40.

[0043] The contents disclosed in the above embodiments can be implemented in appropriate combinations. [Explanation of symbols]

[0044] 1: Cable arrangement structure 10: First protector, 20: Second protector 30: braided tube; 30a: first end; 30b: second end 40: Twisted pair cable 50: Steel strip, 53, 54: Curved section 100: vehicle, 110: vehicle body, 120: roof, 120a: opening 200: sunroof, 210: sliding glass body, 220: rail L1: first distance, L2: second distance R1, R2: Radius of curved part W: Electric wire X: Front-rear direction of the vehicle, Y: Up-down direction of the vehicle

Claims

1. A first protector fixed to a body of a vehicle; A second protector is fixed to a sliding glass body that moves along a vehicle front-rear direction relative to an opening provided in a roof of the vehicle body; a braided tube having a first end held by the first protector and a second end held by the second protector; a twisted pair cable inserted into the braided tube; a steel strip that is inserted into the braided tube and forms a curved portion that is curved in the vehicle front-rear direction between the first end and the second end of the braided tube; Equipped with the steel band is a plate-like member and has a support surface for supporting the twisted pair cable; The twisted pair cable is a cable in which two mutually insulated and independent electric wires are crossed in a spiral shape and integrated. A wiring structure characterized by the above.

2. The twisted pair cable has a smaller radius of curvature at the curved portion than the steel band. The wiring structure according to claim 1 .

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