Wiring structure for sliding doors

Abstract

To provide a wiring structure for a slide door which can suppress the occurence of abrasion or allophone in a contact part between an exterior member and a wall surface.SOLUTION: A wiring structure 1 for a slide door comprises a protector 2, a holding member 5 supported by the protector, a flexible exterior member 6 which has a first end part held by the holding member and a second end part held by the slide door of a vehicle, and an electric wire. The exterior member extends from the holding member toward between a first wall surface 32a and a second wall surface 32b. The protector has an abutment part 20 regulating the swing range of the holding member. The abutment part abuts the holding member before the exterior member contacts with the first wall surface to regulate the swing of the holding member when the slide door slides toward a fully closed position and abuts the holding member before the exterior member contacts with the second wall surface to regulate the swing of the holding member when the slide door slides toward a fully opened position.SELECTED DRAWING: Figure 11

Description

[Technical Field]

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

[0002] Conventionally, there are configurations for holding an exterior member in a swingable manner. Patent Document 1 discloses a corrugated tube holder including a rotating member attached to one end of a corrugated tube and a holding member for holding the rotating member. The corrugated tube in Patent Document 1 is a component of a wire harness routed from the vehicle body to the sliding door. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2019-100513 Summary of the Invention [Problem to be solved by the invention]

[0004] If the exterior member is allowed to swing in response to the movement of the sliding door, wear and abnormal noise may occur at the contact points between the exterior member and the surrounding wall surface. It is desirable to be able to suppress the wear and abnormal noise at the contact points.

[0005] An object of the present invention is to provide a wiring structure for a sliding door that can suppress wear and noise at the contact area between an exterior member and a surrounding wall surface. [Means for solving the problem]

[0006] The wiring structure for a sliding door of the present invention includes a protector disposed on a vehicle body, a holding member housed in the protector and supported by the protector so as to be swingable relative to the protector, a flexible exterior member having a first end held by the holding member and a second end held by the sliding door of the vehicle, and an electric wire inserted through the exterior member and connecting the vehicle body and the sliding door, wherein the exterior member extends from the holding member toward between a first wall surface and a second wall surface facing each other in a sliding direction of the sliding door, The exterior member contacts the first wall surface when the sliding door is in the fully closed position, and contacts the second wall surface when the sliding door is in the fully open position, the protector has an abutment portion that restricts the swing range of the holding member, and the abutment portion abuts against the holding member before the exterior member contacts the first wall surface when the sliding door slides toward the fully closed position, thereby restricting the swing of the holding member, and abuts against the holding member before the exterior member contacts the second wall surface when the sliding door slides toward the fully open position, thereby restricting the swing of the holding member. [Effects of the Invention]

[0007] In the wiring structure for a sliding door according to the present invention, the abutment portion abuts against the retaining member before the exterior member contacts the first wall surface when the sliding door slides toward the fully closed position, thereby restricting the swing of the retaining member, and abuts against the retaining member before the exterior member contacts the second wall surface when the sliding door slides toward the fully open position, thereby restricting the swing of the retaining member. The wiring structure for a sliding door according to the present invention has the effect of reducing the frictional force between the exterior member and the surrounding wall surface, thereby suppressing wear and abnormal noise at the contact points. [Brief explanation of the drawings]

[0008] [Figure 1] FIG. 1 is a perspective view of a wiring structure for a sliding door according to an embodiment. [Figure 2]FIG. 2 is a perspective view of the wiring structure for a sliding door according to the embodiment. [Figure 3] FIG. 3 is an exploded perspective view of the wiring structure for a sliding door according to the embodiment. [Figure 4] FIG. 4 is a plan view of the holding member according to the embodiment. [Figure 5] FIG. 5 is a plan view of the protector main body according to the embodiment. [Figure 6] FIG. 6 is a perspective view of the protector main body according to the embodiment. [Figure 7] FIG. 7 is a perspective view of the cover according to the embodiment. [Figure 8] FIG. 8 is a plan view showing the inside of the protector according to the embodiment. [Figure 9] FIG. 9 is a cross-sectional view of the wiring structure for a sliding door according to the embodiment. [Figure 10] FIG. 10 is a cross-sectional view of the inside of the protector when the sliding door moves toward the fully closed position. [Figure 11] FIG. 11 is a cross-sectional view of the inside of the protector when the sliding door moves toward the fully open position. DETAILED DESCRIPTION OF THE INVENTION

[0009] Hereinafter, a wiring structure for a sliding door 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 this 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 11. This embodiment relates to a wiring structure for a sliding door. FIGS. 1 and 2 are perspective views of the wiring structure for a sliding door according to the embodiment. FIG. 3 is an exploded perspective view of the wiring structure for a sliding door according to the embodiment. FIG. 4 is a plan view of a retaining member according to the embodiment. FIG. 5 is a plan view of a protector main body according to the embodiment. FIG. 6 is a perspective view of the protector main body according to the embodiment. FIG. 7 is a perspective view of a cover according to the embodiment. FIG. 8 is a plan view showing the interior of a protector according to the embodiment. FIG. 9 is a cross-sectional view of the wiring structure for a sliding door according to the embodiment. FIG. 10 is a cross-sectional view of the interior of the protector when the sliding door moves toward the fully closed position. FIG. 11 is a cross-sectional view of the interior of the protector when the sliding door moves toward the fully open position. FIG. 9 shows a cross section taken along line IX-IX in FIG. 8.

[0011] As shown in Figs. 1 and 2, a wiring structure 1 for a sliding door according to this embodiment is disposed in a vehicle 100 such as an automobile. The vehicle 100 has a vehicle body 110 and a sliding door 120. The sliding door 120 is, for example, a power sliding door that is opened and closed by power from a motor or the like. Fig. 1 shows the sliding door 120 in a fully closed position. The sliding direction of the illustrated sliding door 120 is the vehicle longitudinal direction X. That is, the sliding door 120 moves relative to the vehicle body 110 along the vehicle longitudinal direction X.

[0012] The wiring structure 1 for a sliding door connects a vehicle body 110 and a sliding door 120. More specifically, the wiring structure 1 for a sliding door includes a protector 2 arranged on the vehicle body 110, an exterior member 6, and an electric wire 7. The sliding door 120 closes or opens an opening 130 provided in the vehicle body 110. When the sliding door 120 is in the fully closed position, it closes the opening 130 from the outside in the vehicle width direction Y. The protector 2 is arranged, for example, at the lower end of the opening 130 in the vehicle up-down direction Z.

[0013] The exterior member 6 is a flexible tubular member, such as a corrugated tube. The illustrated exterior member 6 has a cylindrical shape. The exterior member 6 has a first end 6a and a second end 6b. The first end 6a is held by a holding member 5 (described later) inside the protector 2. The second end 6b is held by a holding portion 121 of the sliding door 120. Therefore, the second end 6b moves together with the sliding door 120 in the vehicle longitudinal direction X.

[0014] The electric wire 7 is inserted through the exterior member 6 and connects the vehicle body 110 and the sliding door 120. The electric wire 7 has a first end 7a and a second end 7b. The first end 7a is the end on the vehicle body 110 side, and the second end 7b is the end on the sliding door 120 side. For example, a connector 71 and a ground terminal 8 are connected to the first end 7a. The electric wire 7 is connected to a power source or a control device of the vehicle body 110 via the connector 71. For example, a connector 72 is connected to the second end 7b. The electric wire 7 is connected to equipment of the sliding door 120 via the connector 72. When the sliding door 120 is in the fully closed position, as shown in FIG. 1 , the second end 6b is located forward of the vehicle with respect to the first end 6a. In the illustrated wiring structure 1 for a sliding door, when the sliding door 120 is in the fully closed position, the second end 6b opens toward the front of the vehicle.

[0015] 2 shows the sliding door 120 in a fully open position. When the sliding door 120 is in the fully open position, the second end 6b is located rearward of the vehicle relative to the first end 6a, as shown in FIG. 2. In the illustrated wiring structure 1 for a sliding door, when the sliding door 120 is in the fully open position, the second end 6b opens toward the top of the vehicle. Therefore, in the vehicle 100 according to this embodiment, when the sliding door 120 slides in the vehicle longitudinal direction X, a torsional force is applied from the holding portion 121 to the exterior member 6.

[0016] As shown in FIG. 3, the wiring structure 1 for a sliding door has a retaining member 5. The retaining member 5 is molded from, for example, an insulating synthetic resin. The retaining member 5 is attached to a first end portion 6a of an exterior member 6 and holds the first end portion 6a. The retaining member 5 of this embodiment is fixed to the first end portion 6a so as to be unable to rotate relative to the exterior member 6.

[0017] The protector 2 has a protector body 3 and a cover 4 that engages with the protector body 3. The protector body 3 and the cover 4 are molded, for example, from an insulating synthetic resin. The protector 2 houses the holding member 5 and supports the holding member 5 so that the holding member 5 can follow the movement of the exterior member 6. In other words, the protector 2 supports the holding member 5 so that the holding member 5 can swing relative to the protector 2. The protector 2 and the holding member 5 may be made of different materials so that the friction between them is small.

[0018] The protector 2 has an abutment portion 20 that restricts the swing range of the holding member 5. As will be described below, the abutment portion 20 is configured to suppress interference between the wall surface of the protector 2 and the exterior member 6. Therefore, the wiring structure 1 for a sliding door according to this embodiment can suppress wear and abnormal noise at the contact points between the exterior member 6 and the protector 2.

[0019] As shown in Figures 3 and 4, the holding member 5 has a main body 51, a cylindrical portion 52, and a flange 53. As shown in Figure 4, the illustrated holding member 5 is configured by engaging a first member 5A and a second member 5B with each other. The first member 5A and the second member 5B each have a semi-cylindrical shape. The first member 5A and the second member 5B are engaged with each other to sandwich the first end portion 6a of the exterior member 6.

[0020] As shown in FIG. 4, the main body 51 has a substantially spherical shape. More specifically, the outer peripheral surface 51s of the main body 51 has a substantially spherical shape. The main body 51 is hollow and is open on both sides in the axial direction C1. The electric wire 7 is inserted into the main body 51, and the first end 6a of the exterior member 6 is accommodated therein. The main body 51 has two protrusions 54, 54. The protrusions 54 protrude radially outward from the outer peripheral surface 51s of the main body 51. The two protrusions 54, 54 protrude in opposite directions to each other. The protrusions 54 protrude, for example, perpendicular to the axial direction C1.

[0021] The main body 51 has a first end 51a in the axial direction C1 and a second end 51b in the axial direction C1. The first end 51a is the end from which the electric wire 7 is drawn out. The second end 51b is the end from which the outer casing 6 is drawn out. The tubular portion 52 protrudes from the second end 51b along the axial direction C1. The tubular portion 52 has a cylindrical shape. The tubular portion 52 is formed so as to be able to hold the first end 6a of the outer casing 6. The inner diameter of the tubular portion 52 is equal to the outer diameter of the outer casing 6, for example.

[0022] The flange 53 is disposed at the tip of the cylindrical portion 52. The flange 53 protrudes radially outward from the tip of the cylindrical portion 52. The illustrated flange 53 has a circular ring shape. The flange 53 is configured to prevent foreign matter from entering the support portions 33, 43. For example, if a foreign matter such as a pebble enters the second passage 32 from the outside, the foreign matter is stopped by the flange 53. Therefore, it is difficult for foreign matter to enter deeper than the flange 53.

[0023] As shown in Figures 5 and 6, the protector body 3 has a first passage 31, a second passage 32, a support portion 33, and a first abutment portion 34. The support portion 33 is located between the first passage 31 and the second passage 32. The first passage 31 and the second passage 32 are wiring paths having a semi-cylindrical shape. The electric wires 7 drawn out from the exterior member 6 are routed in the first passage 31. The second passage 32 is a passage that accommodates the first end portion 6a of the exterior member 6. The second passage 32 extends along the vehicle width direction Y. The width of the second passage 32 in the vehicle front-rear direction X increases with increasing distance from the support portion 33 along the vehicle width direction Y.

[0024] The second passage 32 has a first wall surface 32a, a second wall surface 32b, and a bottom wall surface 32c. The first wall surface 32a and the second wall surface 32b face each other in the vehicle longitudinal direction X. The first wall surface 32a is located at the end of the second passage 32 on the vehicle front side. The shape of the first wall surface 32a in a cross section perpendicular to the vehicle width direction Y is an arc shape. The first wall surface 32a curves gently toward the vehicle front side as it moves away from the support portion 33 along the vehicle width direction Y. The shape of the first wall surface 32a determines the curved shape of the exterior member 6 when the sliding door 120 is in the fully closed position.

[0025] The second wall surface 32b is located at the end of the second passage 32 on the vehicle rear side. The shape of the second wall surface 32b in a cross section perpendicular to the vehicle width direction Y is an arc shape. The second wall surface 32b is gently curved toward the vehicle rear side as it moves away from the support portion 33 along the vehicle width direction Y. The shape of the second wall surface 32b determines the curved shape of the exterior member 6 when the sliding door 120 is in the fully open position.

[0026] The bottom wall surface 32c connects the first wall surface 32a and the second wall surface 32b, and is located at the lower end of the second passage 32. The bottom wall surface 32c faces the exterior member 6 in the vehicle vertical direction Z. A through hole 32d that opens into the bottom wall surface 32c is formed in the second passage 32. The through hole 32d is located at the end of the bottom wall surface 32c on the support portion 33 side. The through hole 32d is formed so that foreign matter such as liquid or pebbles that has entered the second passage 32 can be discharged downward.

[0027] The support portion 33 forms an accommodating chamber that accommodates the holding member 5. The support portion 33 supports the holding member 5 so that the holding member 5 can swing relative to the protector 2. The support portion 33 has a first rib 33a, a second rib 33b, and a third rib 33c. The first rib 33a and the second rib 33b extend in a direction perpendicular to the axial direction C2 that connects the first passage 31 and the second passage 32. The first rib 33a and the second rib 33b are parallel to each other.

[0028] 6, the first rib 33a and the second rib 33b have an arc shape corresponding to the spherical shape of the main body 51 of the holding member 5. The first rib 33a slidably supports the first end 51a of the holding member 5. The second rib 33b slidably supports the second end 51b of the holding member 5. A recess that accommodates the protrusion 54 of the holding member 5 is provided between the first rib 33a and the second rib 33b.

[0029] The third rib 33c extends along the axial direction C2 from the first rib 33a to the second rib 33b. As shown in Fig. 6, the third rib 33c has an arc shape corresponding to the spherical shape of the main body 51 of the holding member 5. The third rib 33c slidably supports the main body 51 of the holding member 5.

[0030] The first contact portion 34 constitutes the contact portion 20 and is disposed on the second passage 32 side of the support portion 33. The first contact portion 34 is a rib extending in a direction perpendicular to the axial direction C2. As shown in Fig. 6, the shape of the first contact portion 34 when viewed from the axial direction C2 is an arc shape.

[0031] 7 , the cover 4 has a first covering portion 41, a second covering portion 42, a supporting portion 43, and a second contact portion 44. The first covering portion 41 is a portion that covers the first passage 31 of the protector body 3 to protect the electric wire 7. The second covering portion 42 is a portion that covers the second passage 32 of the protector body 3 to protect the exterior member 6. The supporting portion 43 is located between the first covering portion 41 and the second covering portion 42.

[0032] The width of the second cover portion 42 in the vehicle longitudinal direction X increases with increasing distance from the support portion 43 in the vehicle width direction Y. The second cover portion 42 has a first wall surface 42a, a second wall surface 42b, and a top wall surface 42c. The first wall surface 42a and the second wall surface 42b face each other in the vehicle longitudinal direction X.

[0033] The first wall surface 42a is located at the end of the second cover portion 42 on the vehicle front side. The shape of the first wall surface 42a in a cross section perpendicular to the vehicle width direction Y is an arc shape. The first wall surface 42a is gently curved toward the vehicle front side as it moves away from the support portion 43 along the vehicle width direction Y. The first wall surface 42a is combined with the first wall surface 32a of the protector main body 3 to form a continuous surface. The shape of the first wall surface 42a determines the curved shape of the exterior member 6 when the sliding door 120 is in the fully closed position.

[0034] The second wall surface 42b is located at the end of the second cover portion 42 on the vehicle rear side. The shape of the second wall surface 42b in a cross section perpendicular to the vehicle width direction Y is an arc shape. The second wall surface 42b is gently curved toward the vehicle rear side as it moves away from the support portion 43 along the vehicle width direction Y. The second wall surface 42b is combined with the second wall surface 32b of the protector main body 3 to form a continuous surface. The shape of the second wall surface 42b determines the curved shape of the exterior member 6 when the sliding door 120 is in the fully open position.

[0035] The top wall surface 42c connects the first wall surface 42a and the second wall surface 42b, and is located at the upper end of the second cover portion 42. The top wall surface 42c faces the exterior member 6 in the vehicle up-down direction Z.

[0036] The support portion 43 is combined with the support portion 33 of the protector body 3 to form an accommodation chamber that accommodates the holding member 5. The support portion 43 supports the holding member 5 so that the holding member 5 can swing relative to the protector 2. The support portion 43 has a first rib 43a, a second rib 43b, and a third rib 43c. The first rib 43a and the second rib 43b extend in a direction perpendicular to the axial direction C2. The first rib 43a and the second rib 43b are parallel to each other.

[0037] The first rib 43a and the second rib 43b are arc-shaped corresponding to the spherical shape of the main body 51 of the holding member 5. The first rib 43a slidably supports the first end 51a of the holding member 5. The second rib 43b slidably supports the second end 51b of the holding member 5. A recess that accommodates the protrusion 54 of the holding member 5 is provided between the first rib 43a and the second rib 43b.

[0038] The third rib 43c extends along the axial direction C2 from the first rib 43a to the second rib 43b. The third rib 43c has an arc shape corresponding to the spherical shape of the main body 51 of the holding member 5. The third rib 43c slidably supports the main body 51 of the holding member 5.

[0039] The second abutment portion 44 constitutes the abutment portion 20 together with the first abutment portion 34 of the protector body 3. The second abutment portion 44 is disposed on the second cover portion 42 side of the support portion 43. The second abutment portion 44 is a rib extending in a direction perpendicular to the axial direction C2. When viewed from the axial direction C2, the second abutment portion 44 has an arc shape.

[0040] As shown in FIG. 8 , the exterior member 6 extends from the tubular portion 52 of the holding member 5 along the axial direction of the tubular portion 52. The main body 51 of the holding member 5 is supported from below by the support portion 33 of the protector main body 3. The support portion 43 of the cover 4 supports the main body 51 from above. The support portions 33, 43 allow the holding member 5 to swing relative to the protector main body 3. For example, the protector 2 allows the holding member 5 to swing as shown by arrow AR0 in FIG. 8 . When the sliding door 120 moves in the vehicle longitudinal direction X, a force acts on the exterior member 6 in the vehicle longitudinal direction X. The swing shown by arrow AR0 is the movement of the holding member 5 due to the force in the vehicle longitudinal direction X. The swing of the holding member 5 shown by arrow AR0 improves the followability of the exterior member 6 to the movement of the sliding door 120.

[0041] The support portions 33, 43 allow the rotational movement of the holding member 5 about the central axis in the axial direction C2. As described above, a torsional force is applied to the exterior member 6 due to the movement of the sliding door 120. The rotation of the holding member 5 is a movement of the holding member 5 that occurs due to the torsional force. The rotational movement of the holding member 5 improves the ability of the exterior member 6 to follow the movement of the sliding door 120.

[0042] As shown in FIG. 8 , the flange 53 of the holding member 5 is located on the second passage 32 side with respect to the abutment portion 20. The flange 53 prevents foreign matter from entering the abutment portion 20 or the support portion 33. The flange 53 is formed to prevent the intrusion of solid foreign matter. The outer diameter of the illustrated flange 53 is larger than the inner diameter of the abutment portion 20. That is, the flange 53 overlaps the abutment portion 20 when viewed from the axial direction C2, preventing the intrusion of foreign matter. Therefore, the flange 53 prevents foreign matter from getting caught in the gap between the tubular portion 52 and the protector 2 and from entering the sliding portion of the support portions 33, 43. The outer diameter of the flange 53 is determined so as not to interfere with the protector 2 when the holding member 5 swings within its swingable range.

[0043] As shown in FIG. 9 , the contact portion 20 surrounds the entire periphery of the tubular portion 52 of the holding member 5. In other words, the contact portion 20 is configured to restrict the movement range of the tubular portion 52 in the vehicle longitudinal direction X and the vehicle vertical direction Z. A gap G1 is provided between the contact portion 20 and the tubular portion 52. The gap G1 is designed to allow the tubular portion 52 to move relative to the contact portion 20 in the vehicle longitudinal direction X and the vehicle vertical direction Z. The gap in the vehicle longitudinal direction X allows the holding member 5 to swing as indicated by arrow AR0 in FIG. 8 . The gap in the vehicle vertical direction Z allows the holding member 5 to swing such that the tubular portion 52 moves in the vehicle vertical direction Z. Furthermore, the presence of the gap G1 allows the holding member 5 to rotate. In other words, the holding member 5 can rotate relative to the contact portion 20 together with the exterior member 6.

[0044] 10 shows the exterior member 6 and the holding member 5 when the sliding door 120 moves toward the fully closed position. A force indicated by arrow AR1, i.e., a force toward the front of the vehicle, acts on the exterior member 6. The abutting portion 20 abuts against the holding member 5 before the exterior member 6 contacts the first wall surfaces 32a, 42a, thereby restricting the swing of the holding member 5. In FIG. 10, the abutting point between the abutting portion 20 and the holding member 5 is surrounded by a dashed line P1.

[0045] As shown in FIG. 10 , the abutting portion 20 abuts against the outer peripheral surface of the tubular portion 52 of the holding member 5 to restrict the swinging of the holding member 5. When the abutting portion 20 abuts against the tubular portion 52, the sliding door 120 is positioned before the fully closed position. At this time, the exterior member 6 is not yet in contact with the first wall surface 32a. A gap G2 exists between the exterior member 6 and the first wall surface 32a. Furthermore, in the state shown in FIG. 10 , a gap similar to the gap G2 exists between the exterior member 6 and the first wall surface 42a of the cover 4.

[0046] As the sliding door 120 moves further toward the fully closed position, the exterior member 6 comes into contact with the first wall surfaces 32a, 42a. The sliding door 120 reaches the fully closed position after the exterior member 6 comes into contact with the first wall surfaces 32a, 42a. The first wall surfaces 32a, 42a define the curved shape of the exterior member 6 so as to prevent excessive bending of the exterior member 6 and the electric wires 7. The shapes of the first wall surfaces 32a, 42a are determined based on, for example, the bending performance of the exterior member 6 and the electric wires 7.

[0047] In the wiring structure 1 for a sliding door according to this embodiment, the exterior member 6 comes into contact with the first wall surfaces 32a, 42a after the abutment portion 20 restricts the swinging of the retaining member 5. The retaining member 5 is supported by the protector 2 so that it cannot swing, thereby reducing the frictional force between the exterior member 6 and the first wall surfaces 32a, 42a. In other words, strong interference between the exterior member 6 and the first wall surfaces 32a, 42a does not occur. This suppresses wear and abnormal noise at the contact portions between the exterior member 6 and the first wall surfaces 32a, 42a.

[0048] As a comparative example, a wiring structure in which the swinging of the retaining member 5 is not restricted will be considered. In this case, when the sliding door 120 moves toward the fully closed position, strong interference between the exterior member 6 and the first wall surfaces 32a, 42a is likely to occur. A reaction force against the force indicated by arrow AR1 acts from the first wall surfaces 32a, 42a on the exterior member 6, increasing the frictional force at the contact points, which may result in wear and abnormal noise. In contrast, the wiring structure 1 for a sliding door according to this embodiment can suppress wear and abnormal noise and improve the ability of the exterior member 6 to follow the movement of the sliding door 120.

[0049] 11 shows the exterior member 6 and the holding member 5 when the sliding door 120 moves toward the fully open position. A force indicated by arrow AR2, i.e., a force toward the rear of the vehicle, acts on the exterior member 6. The abutting portion 20 abuts against the holding member 5 before the exterior member 6 contacts the second wall surfaces 32b, 42b, thereby restricting the swing of the holding member 5. In FIG. 11, the abutting point between the abutting portion 20 and the holding member 5 is surrounded by a dashed line P2.

[0050] As shown in FIG. 11, the abutting portion 20 abuts against the outer peripheral surface of the tubular portion 52 of the holding member 5 to restrict the swinging of the holding member 5. When the abutting portion 20 abuts against the tubular portion 52, the sliding door 120 is positioned before the fully open position. At this time, the exterior member 6 is not yet in contact with the second wall surface 32b. A gap G3 exists between the exterior member 6 and the second wall surface 32b. Furthermore, in the state shown in FIG. 11, a gap similar to the gap G3 exists between the exterior member 6 and the second wall surface 42b of the cover 4.

[0051] As the sliding door 120 moves further toward the fully open position, the exterior member 6 comes into contact with the second wall surfaces 32b, 42b. The sliding door 120 reaches the fully open position after the exterior member 6 comes into contact with the second wall surfaces 32b, 42b. The second wall surfaces 32b, 42b define the curved shape of the exterior member 6 so as to prevent excessive bending of the exterior member 6 and the electric wires 7. The shapes of the second wall surfaces 32b, 42b are determined based on, for example, the bending performance of the exterior member 6 and the electric wires 7.

[0052] As described above, in the wiring structure 1 for a sliding door according to this embodiment, the exterior member 6 comes into contact with the second wall surfaces 32b, 42b after the abutment portion 20 restricts the swinging of the holding member 5. Since the holding member 5 is supported by the protector 2 so as not to swing, the frictional force between the exterior member 6 and the second wall surfaces 32b, 42b is reduced. Therefore, the wiring structure 1 for a sliding door according to this embodiment allows the exterior member 6 to rotate smoothly while in contact with the protector 2. This improves the ability of the exterior member 6 to follow the movement of the sliding door 120.

[0053] Furthermore, the wiring structure 1 for a sliding door according to this embodiment can suppress strong interference between the exterior member 6 and the bottom wall surface 32c and between the exterior member 6 and the top wall surface 42c. For example, when a downward force is applied to the exterior member 6, the abutting portion 20 abuts against the tubular portion 52 before the exterior member 6 contacts the bottom wall surface 32c, thereby restricting the swinging of the holding member 5. When an upward force is applied to the exterior member 6, the abutting portion 20 abuts against the tubular portion 52 before the exterior member 6 contacts the top wall surface 42c, thereby restricting the swinging of the holding member 5. Therefore, the wiring structure 1 for a sliding door according to this embodiment can suppress wear and abnormal noise at the contact portion between the exterior member 6 and the protector 2.

[0054] As described above, the wiring structure 1 for a sliding door according to this embodiment includes the protector 2, the holding member 5, the flexible exterior member 6, and the electric wire 7. The protector 2 is disposed in the vehicle body 110 of the vehicle 100. The holding member 5 is housed in the protector 2 and is supported by the protector 2 so as to be swingable relative to the protector 2. The exterior member 6 has a first end 6a held by the holding member 5 and a second end 6b held by the sliding door 120 of the vehicle 100. The electric wire 7 is inserted through the exterior member 6 and connects the vehicle body 110 and the sliding door 120.

[0055] The exterior member 6 extends from the holding member 5 toward between the first wall surfaces 32a, 42a and the second wall surfaces 32b, 42b that face each other in the vehicle longitudinal direction X. The vehicle longitudinal direction X is an example of a sliding direction of the sliding door 120. The exterior member 6 comes into contact with the first wall surfaces 32a, 42a when the sliding door 120 is in a fully closed position, and comes into contact with the second wall surfaces 32b, 42b when the sliding door 120 is in a fully open position.

[0056] The protector 2 has a contact portion 20 that restricts the swing range of the holding member 5. When the sliding door 120 slides toward the fully closed position, the contact portion 20 abuts against the holding member 5 before the exterior member 6 contacts the first wall surfaces 32a, 42a, thereby restricting the swing of the holding member 5. Furthermore, when the sliding door 120 slides toward the fully open position, the contact portion 20 abuts against the holding member 5 before the exterior member 6 contacts the second wall surfaces 32b, 42b, thereby restricting the swing of the holding member 5. The wiring structure 1 for a sliding door according to this embodiment restricts the swing of the holding member 5 using the abutment portion 20, thereby suppressing wear and abnormal noise at the contact portions between the exterior member 6 and the first wall surfaces 32a, 42a and the contact portions between the exterior member 6 and the second wall surfaces 32b, 42b.

[0057] In this embodiment, the first wall surfaces 32a, 42a and the second wall surfaces 32b, 42b are wall surfaces of the protector 2. The protector 2 defines the curved shape of the exterior member 6 when the sliding door 120 is in the fully closed position by the first wall surfaces 32a, 42a. Also, the protector 2 defines the curved shape of the exterior member 6 when the sliding door 120 is in the fully open position by the second wall surfaces 32b, 42b. Therefore, the wiring structure 1 for a sliding door according to this embodiment can define the shape of the exterior member 6 to an appropriate shape by the protector 2 while suppressing wear and abnormal noise generation.

[0058] The first wall surface and the second wall surface are not limited to wall surfaces of the protector. For example, in the wiring structure 1 for a sliding door, the first wall surface and the second wall surface may be wall surfaces of a member other than the protector 2. This member is disposed, for example, between the protector 2 and the sliding door 120.

[0059] The holding member 5 of this embodiment has a spherical main body 51 and a cylindrical tubular portion 52 protruding from the main body 51. A first end 6a of the exterior member 6 is held by the tubular portion 52 and extends from the tubular portion 52 along the axial direction C1 of the tubular portion 52. The abutting portion 20 of the protector 2 abuts against the outer circumferential surface of the tubular portion 52 to restrict the swing of the holding member 5. This configuration allows the trajectory of the exterior member 6 to be controlled with high precision.

[0060] The shape of the holding member 5 is not limited to the shape exemplified in the embodiment. Likewise, the shapes of the support portions 33, 43 are not limited to the shape exemplified in the embodiment. The support portions 33, 43 may be formed so as to be able to support the holding member 5 so as to be able to swing. When a torsional force acts on the exterior member 6 and the holding member 5, the support portions 33, 43 are formed so as to allow rotational movement of the holding member 5.

[0061] The contents disclosed in the above embodiments can be implemented in appropriate combinations. [Explanation of symbols]

[0062] 1. Wiring structure for sliding doors 2 Protector 3: Protector body, 4: Cover 5: holding member, 5A: first member, 5B: second member 6: exterior member, 6a: first end portion, 6b: second end portion 7: Electric wire, 7a: First end, 7b: Second end 20: Contact part 31: First passage, 32: Second passage, 32a: First wall, 32b: Second wall 32c: Bottom wall surface, 32d: Through hole 33: Support portion, 33a: First rib, 33b: Second rib, 33c: Third rib 34: First contact part (contact part) 41: First cover portion, 42: Second cover portion, 42a: First wall surface, 42b: Second wall surface 42c:Top wall surface 43: Support portion, 43a: First rib, 43b: Second rib, 43c: Third rib 44:Second contact part (contact part) 51: Main body, 51a: First end, 51b: Second end, 51s: Outer surface 52: cylindrical portion, 53: flange, 54: protrusion 71,72: Connector 100: vehicle, 110: vehicle body, 120: sliding door, 121: holding part 130: Opening C1: Axial direction, X: Front-rear direction of the vehicle, Y: Width direction of the vehicle, Z: Up-down direction of the vehicle

Claims

1. a protector disposed on a body of the vehicle; a holding member housed in the protector and supported by the protector so as to be swingable relative to the protector; a flexible exterior member having a first end held by the holding member and a second end held by the vehicle sliding door; an electric wire inserted through the exterior member and connecting the vehicle body and the sliding door; Equipped with the exterior member extends from the holding member toward a space between a first wall surface and a second wall surface that face each other in a sliding direction of the sliding door, the exterior member contacts the first wall surface when the sliding door is in a fully closed position, and contacts the second wall surface when the sliding door is in a fully open position, the protector has a contact portion that restricts the swing range of the holding member, the abutment portion is configured to abut against the holding member before the exterior member contacts the first wall surface when the sliding door slides toward the fully closed position, thereby restricting the swing of the holding member, and the exterior member contacts the first wall surface after the abutment portion restricts the swing of the holding member, The abutting portion is configured to abut against the holding member before the exterior member contacts the second wall surface when the sliding door slides toward the fully open position, thereby restricting the swing of the holding member, and the exterior member contacts the second wall surface after the abutting portion restricts the swing of the holding member. A wiring structure for a sliding door.

2. the first wall surface and the second wall surface are wall surfaces of the protector, The protector defines the curved shape of the exterior member when the sliding door is in the fully closed position by the first wall surface, and defines the curved shape of the exterior member when the sliding door is in the fully open position by the second wall surface. The wiring structure for a sliding door according to claim 1.

3. The holding member has a spherical main body and a cylindrical tube portion protruding from the main body, the first end of the exterior member is held by the cylindrical portion and extends from the cylindrical portion along an axial direction of the cylindrical portion, The abutting portion of the protector abuts against the outer circumferential surface of the cylindrical portion to restrict the swinging of the holding member.

3. The wiring structure for a sliding door according to claim 1 or 2.

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