Exterior member and wire harness

Abstract

The purpose of the present invention is to provide a technique capable of improving the expandability of an exterior member. The exterior member (10) has a cylindrical portion (12) through which the wiring member (30) passes. The tube portion (12) is formed of an elastic material. The cylinder portion (12) includes a first corrugated portion (15) in which first mountain portions (16) and first valley portions (17) are alternately arranged in the axial direction of the cylinder portion (12), and a second corrugated portion (18) in which second mountain portions (19) and second valley portions (20) are alternately arranged in the circumferential direction of the cylinder portion (12).

Description

Technical Field

[0001] The present invention relates to an exterior member and a wire harness. Background Art

[0002] A rubber sleeve having a corrugated portion is disclosed in Patent Document 1. The rubber sleeve is externally mounted on an electric wire connecting a vehicle body and a sliding door in a vehicle. Prior Art Documents Patent Documents

[0003] Patent Document 1: Japanese Unexamined Patent Application Publication No. 2017-220974 Summary of the Invention Problems to be Solved by the Invention

[0004] When the rubber sleeve described in Patent Document 1 is externally mounted on an electric wire, in a state of being expanded in such a manner that the internal space is enlarged, a connector and an electric wire extending from the connector penetrate from one axial end portion to the other axial end portion of the rubber sleeve. It is desired that the rubber sleeve can be expanded more greatly.

[0005] Therefore, an object is to provide a technique capable of improving the expandability of an exterior member. Means for Solving the Problems

[0006] The exterior member of the present invention includes a cylindrical portion through which a wiring member passes, and the cylindrical portion includes a first corrugated portion in which a first peak portion and a first valley portion are alternately arranged in the axial direction of the cylindrical portion, and a second corrugated portion in which a second peak portion and a second valley portion are alternately arranged in the circumferential direction of the cylindrical portion, and is formed of an elastic material. Advantages of the Invention

[0007] According to the present invention, the expandability of the exterior member can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 is a perspective view showing the exterior member of Embodiment 1. Figure 2 is a top view showing the exterior member of Embodiment 1. Figure 3 is a side view showing the exterior member of Embodiment 1. Figure 4 is along Figure 2 a sectional view taken along line IV-IV. Figure 5 is along Figure 2 a sectional view taken along line V-V. Figure 6 is along Figure 2 a sectional view taken along line VI-VI. Figure 7 is a perspective view showing the wire harness. Figure 8It is a perspective view showing an exterior member and a guide member. Detailed Embodiments

[0009] [Description of Embodiments of the Present Invention] First, embodiments of the present invention will be described by way of example.

[0010] The exterior member of the present invention is as follows.

[0011] (1) An exterior member having a cylindrical portion through which a wiring member passes, the cylindrical portion including a first corrugated portion in which a first peak portion and a first valley portion are alternately arranged in the axial direction of the cylindrical portion, and a second corrugated portion in which a second peak portion and a second valley portion are alternately arranged in the circumferential direction of the cylindrical portion, and is formed of an elastic material.

[0012] In the exterior member according to (1), the first corrugated portion is provided to bend the exterior member in the axial direction. By providing a second corrugated portion independent of the first corrugated portion in the exterior member, the expandability of the exterior member is improved.

[0013] (2) In the exterior member according to (1), it may be that the cylindrical portion includes a first cylindrical portion having a square cross-section, the first cylindrical portion including a pair of first wall portions and a pair of second wall portions connecting the pair of first wall portions, the first corrugated portion is provided on the pair of first wall portions, and the second corrugated portion is provided on the pair of second wall portions. Thus, the first corrugated portion and the second corrugated portion can be separately provided, and the second corrugated portion hardly hinders the bending of the first cylindrical portion caused by the first corrugated portion.

[0014] (3) In the exterior member according to (2), it may be that the second corrugated portion is provided at an intermediate portion of the pair of second wall portions, and the first corrugated portion extends to an end portion of the pair of second wall portions that is more outward than the second corrugated portion. Thus, when the first cylindrical portion bends at the first corrugated portion, large wrinkles are hardly generated.

[0015] (4) In the exterior member according to (3), it may be that the end portion of the first valley portion is connected to the second valley portion. Thus, it is possible to suppress the internal space from becoming too small and improve the expandability of the exterior member.

[0016] (5) In the exterior member according to (4), it may be that the end portion of the first peak portion is connected to the second peak portion. Thus, it is possible to suppress the protrusion amount of the second peak portion on the outer surface of the exterior member and improve the expandability of the exterior member.

[0017] (6) Among the outer packaging members of any one of (2) to (5), it is also possible that the cylindrical portion includes a second cylindrical portion, and only the second corrugated portion among the first corrugated portion and the second corrugated portion is provided on the second cylindrical portion. Thus, for the second cylindrical portion that does not require bending along the axial direction, the expandability is also improved by the second corrugated portion.

[0018] (7) In the outer packaging member of (6), it is also possible that the second corrugated portion is provided along the axial direction over the entire cylindrical portion. Thus, the second corrugated portion can be used to expand the entire cylindrical portion along the axial direction.

[0019] (8) In addition, the wire harness of the present invention includes: an outer packaging member of any one of (1) to (7); a wiring member passing through the cylindrical portion; and a connector provided at an end portion of the wiring member. According to this wire harness, the expandability of the outer packaging member is improved, so that the connector can be enlarged.

[0020] [Details of the Embodiment of the Present Invention] Specific examples of the outer packaging member and the wire harness of the present invention will be described below with reference to the drawings. In addition, the present invention is not limited to these examples, but is shown by the claims, and is intended to include all modifications within the meaning and scope equivalent to the claims.

[0021] [Embodiment 1] Hereinafter, the outer packaging member and the wire harness of Embodiment 1 will be described.

[0022] [Outer Packaging Member] Figure 1 is a perspective view showing the outer packaging member 10 of Embodiment 1. Figure 2 is a top view showing the outer packaging member 10 of Embodiment 1. Figure 3 is a side view showing the outer packaging member 10 of Embodiment 1. Figure 4 is along Figure 2 a cross-sectional view taken along line IV-IV. Figure 5 is along Figure 2 a cross-sectional view taken along line V-V. Figure 6 is along Figure 2 a cross-sectional view taken along line VI-VI.

[0023] The outer packaging member 10 is externally mounted on the wiring member 30 (refer to Figure 7 described later). The outer packaging member 10 includes a cylindrical portion 12 for allowing the wiring member 30 to pass through. The cylindrical portion 12 is formed of an elastic material.

[0024] The barrel 12 includes a first corrugated portion 15 and a second corrugated portion 18. The first corrugated portion 15 is a portion where the first peaks 16 and the first valleys 17 are alternately arranged in the axial direction of the barrel 12. The second corrugated portion 18 is a portion where the second peaks 19 and the second valleys 20 are alternately arranged in the circumferential direction of the barrel 12. The first corrugated portion 15 is wavy along the axial direction of the barrel 12, and the second corrugated portion 18 is wavy along the circumferential direction of the barrel 12.

[0025] The cylinder 12 includes a first cylinder 21 and a second cylinder 22. The first cylinder 21 is a cylinder having both the first bellows 15 and the second bellows 18. The second cylinder 22 is a cylinder having only the second bellows 18.

[0026] The portion of the first barrel portion 21 having the first mountain portion 16 is regarded as a large diameter barrel portion, and the portion having the first valley portion 17 is regarded as a small diameter barrel portion. The diameter of the large diameter barrel portion is larger than the diameter of the small diameter barrel portion. Here, the inner diameter of the large diameter barrel portion is the same as the outer diameter of the small diameter barrel portion. In the first barrel portion 21, the small diameter barrel portion and the large diameter barrel portion are alternately continuous in the axial direction to form the corrugated shape of the first corrugated portion 15. The first barrel portion 21 provided with the first corrugated portion 15 can be stretched and retracted in the length direction and bent and deformed in the width direction.

[0027] The first corrugated portion 15 for bending is not provided in the second barrel 22. Therefore, the second barrel 22 is difficult to expand and contract in the length direction and bend and deform in the width direction compared with the first barrel 21. The second barrel 22 is a cylindrical portion with a certain cross-sectional shape extending elongated along the axial direction. The length of the second barrel 22 in the axial direction is not particularly limited, for example, it can be longer than a large diameter barrel or a small diameter barrel in the first barrel 21.

[0028] Here, the cylinder 12 has a square cross section. The cylinder 12 has a pair of first wall portions 13 and a pair of second wall portions 14. The pair of second wall portions 14 connects the pair of first wall portions 13. When arranged in the vehicle, the pair of second wall portions 14 are arranged to be separated from each other in the upper and lower parts.

[0029] like Figure 4 As shown, the cross section of the barrel 12 may also be a rectangle. Here, in the cross section of the barrel 12, the first wall 13 is longer than the second wall 14. In the rectangle of the cross section of the barrel 12, the first wall 13 constitutes the long side, and the second wall 14 constitutes the short side. The cross section of the barrel 12 may also be a square, a circle, or an oblong shape.

[0030] The first corrugated portion 15 is provided on a pair of first wall portions 13 of the first cylindrical portion 21. The second corrugated portion 18 is provided on a pair of second wall portions 14 of the first cylindrical portion 21 and a pair of second wall portions 14 of the second cylindrical portion 22. The second corrugated portion 18 is provided at the middle portion of the second wall portion 14 along the direction ([ Figure 4 Figure 4 the left - right direction of the paper surface of this figure) connecting the pair of first wall portions 13. The second corrugated portion 18 is not provided at both end portions of the second wall portion 14 connected to the first wall portion 13.

[0031] In the first cylindrical portion 21, the first corrugated portion 15 extends to the end portions outside the second corrugated portion 18 in a pair of second wall portions 14. In the first cylindrical portion 21, the first corrugated portion 15 is provided at both end portions of a pair of second wall portions 14 connected to the first wall portion 13. In the circumferential direction of the first cylindrical portion 21, the end portion of the first corrugated portion 15 is connected to the second corrugated portion 18.

[0032] Here, in the second wall portion 14, the height of the first peak portion 16 is the same as the height of the second peak portion 19. However, the height of the first peak portion 16 and the height of the second peak portion 19 may also be different. Similarly, in the second wall portion 14, the depth of the first trough portion 17 is the same as the depth of the second trough portion 20. However, the depth of the first trough portion 17 and the depth of the second trough portion 20 may also be different.

[0033] In the second wall portion 14, the end portion of the first trough portion 17 is connected to the second trough portion 20. One end portion of the first trough portion 17 is connected to the second trough portion 20 outside one of the pair of second wall portions 14. The other end portion of the first trough portion 17 is connected to the second trough portion 20 outside the other of the pair of second wall portions 14. In the cross - section at the position of the first trough portion 17 shown in Figure 4 the second wall portion 14 is connected to the first wall portion 13 at the position of the second trough portion 20.

[0034] In the second wall portion 14, the end portion of the first peak portion 16 is connected to the second peak portion 19. One end portion of the first peak portion 16 is connected to the second peak portion 19 outside one of the pair of second wall portions 14. The other end portion of the first peak portion 16 is connected to the second peak portion 19 outside the other of the pair of second wall portions 14. In the cross - section at the position of the first peak portion 16 shown in Figure 5 the second wall portion 14 is connected to the first wall portion 13 at the position of the second peak portion 19.

[0035] The second corrugated portion 18 is provided over the entire length of the cylindrical portion 12 in the axial direction. Each of the second peak portions 19 and each of the second valley portions 20 of the second corrugated portion 18 are continuous over the entire length of the cylindrical portion 12 in the axial direction. However, the second corrugated portion 18 may not be provided over the entire length of the cylindrical portion 12 in the axial direction. The cylindrical portion 12 may also have a cylindrical portion where the second corrugated portion 18 is not provided.

[0036] As Figure 6 shown, in each of the upper and lower second wall portions 14 of the second cylindrical portion 22, the number of the second valley portions 20 is larger than the number of the second peak portions 19. Here, in each of the second wall portions 14, four second valley portions 20 are provided, and three second peak portions 19 are provided. In the direction connecting the pair of first wall portions 13 ( Figure 6 the left - right direction of the paper surface in the figure), the second valley portions 20 are located on both outer sides of the second corrugated portion 18. Therefore, the end portion of the second wall portion 14 where the second corrugated portion 18 is not provided extends from the second valley portion 20 toward the first wall portion 13. However, the number of the second peak portions 19 and the number of the second valley portions 20 are not limited to the above numbers and can be set appropriately. For example, the number of the second peak portions 19 may be larger than the number of the second valley portions 20, and in the second cylindrical portion 22, the end portion of the second wall portion 14 where the second corrugated portion 18 is not provided extends from the second peak portion 19 toward the first wall portion 13.

[0037] In Figure 4 the cross - sectional shape of the small - diameter cylindrical portion shown, the arrangement of the second peak portions 19 and the second valley portions 20 is the same as that of Figure 6 the cross - sectional shape of the second cylindrical portion 22 shown. In Figure 5 the cross - sectional shape of the large - diameter cylindrical portion shown, the end portion of the second wall portion 14 where the second corrugated portion 18 is not provided extends from the second peak portion 19 toward the first wall portion 13. In Figure 5 the cross - sectional shape of the large - diameter cylindrical portion shown, the number of the second valley portions 20 is two less than the number of the second valley portions 20 in Figure 6 the cross - sectional shape of the second cylindrical portion 22 shown.

[0038] Here, the period of the first corrugated portion 15 (the interval between the tops of two adjacent first peak portions 16) is longer than the period of the second corrugated portion 18 (the interval between the tops of two adjacent second peak portions 19). However, the period of the first corrugated portion 15 may also be the same as or shorter than the period of the second corrugated portion 18. The length of the second cylindrical portion 22 in the axial direction may also be a length ranging from one - period amount to four - period amounts of the first corrugated portion 15.

[0039] The first cylindrical portion 21 and the second cylindrical portion 22 are arranged at different positions along the axial direction of the cylindrical portion 12. The first cylindrical portion 21 constitutes a part of the cylindrical portion 12 along the axial direction, and the second cylindrical portion 22 constitutes the other part. Here, the first cylindrical portion 21 and the second cylindrical portion 22 are adjacent in the axial direction. The first cylindrical portion 21 constitutes a part including one end portion of the cylindrical portion 12, and the second cylindrical portion 22 constitutes a part including the other end portion of the cylindrical portion 12. The first cylindrical portion 21 constitutes the majority of the cylindrical portion 12. It is also possible that the second cylindrical portion 22 constitutes both ends of the cylindrical portion 12, and the first cylindrical portion 21 constitutes the portion between the second cylindrical portions 22 at both ends. The cylindrical portion 12 may also not include the second cylindrical portion 22 and only include the first cylindrical portion 21.

[0040] The exterior member 10 is, for example, an injection-molded product. The exterior member 10 may also be, for example, an injection-molded product made of a single material. That is, the exterior member 10 may be composed only of an elastic material that is the material of the cylindrical portion 12. The exterior member 10 may also have a portion formed of a material different from the elastic material that is the material of the cylindrical portion 12 in a portion other than the cylindrical portion 12.

[0041] The elastic material that is the material of the cylindrical portion 12 is a flexible material such as rubber or an elastomer. The elastic material may also be, for example, an olefin-based thermoplastic elastomer (TPO) or ethylene-propylene rubber (EPDM).

[0042] The thickness dimension of the wall portion of the cylindrical portion 12 is not particularly limited and can be set appropriately. For example, the thickness dimension of the wall portion of the cylindrical portion 12 may be on the order of 0.3 mm to 2 mm.

[0043] The length dimension of the cylindrical portion 12 is not particularly limited and can be set appropriately according to the use and length dimension of the wiring member 30 to be passed through. For example, as Figure 7 shown, when the wiring member 30 is installed between the vehicle body B and the sliding door D of the vehicle, the length dimension of the cylindrical portion 12 has a length dimension corresponding to the opening and closing of the sliding door D.

[0044] <Harness> Figure 7 is a perspective view showing the harness 100. In Figure 7 a part of the vehicle body B and a part of the sliding door D are shown by a double-dot dash line. In Figure 7 the front-rear direction, the up-down direction, and the inside-outside direction of the vehicle are shown. Figure 7 The sliding door D shown is located on the left side of the vehicle and opens and closes in the front-rear direction. In Figure 7 the harness 100 shown by a solid line is in the form when the sliding door D is in the closed state, and the harness 100 shown by a double-dot dash line is in the form when the sliding door D is in the open state. Figure 8 is a perspective view showing the exterior member 10 and the guide member 40. In Figure 8In order to show the guide member 40, the outer packaging member 10 is cut at the middle part along the length direction. In addition, in Figure 8 the link 41, which is a part of the guide member 40, is disassembled.

[0045] The wiring harness 100 includes an outer packaging member 10, a wiring member 30, and a connector 32. The wiring member 30 passes through the cylindrical portion 12 of the outer packaging member 10. The wiring member 30 is a transmission member for transmitting electric power or signals. The wiring member 30 is an electric wire, an optical fiber, or the like. One or more wiring members 30 are provided. The connectors 32 are respectively provided at one end portion and the other end portion of the wiring member 30.

[0046] Here, as Figure 7 shown, the wiring harness 100 is installed between the vehicle body B and the sliding door D of the vehicle. The wiring member 30 supplies power to loads or the like provided on the sliding door D, or transmits signals between the loads on the sliding door D side and the loads on the vehicle body B side. The wiring harness 100 further includes a guide member 40, a vehicle body fitting 50, and a door fitting 52.

[0047] The guide member 40 can be bent and deformed according to the opening and closing of the sliding door D. The wiring member 30 passes through the guide member 40. The outer packaging member 10 is externally mounted on the guide member 40 to protect the wiring member 30 and the guide member 40. The outer packaging member 10 and the wiring member 30 are deformed corresponding to the bending deformation of the guide member 40. The guide member 40 is located inside the first cylindrical portion 21. The guide member 40 may be the same as or smaller than the inner surface of the first cylindrical portion 21. In this case, the guide member 40 does not expand the outer packaging member 10, and the outer packaging member 10 does not press the guide member 40. The guide member 40 includes a plurality of links 41.

[0048] Each link 41 is made of synthetic resin, for example. Each link 41 is in a cylindrical shape, for example. The internal space of each link 41 is formed as an insertion space for inserting the wiring member 30. As Figure 8 shown, a plurality of links 41 are connected in sequence to form a row. The internal spaces of adjacent links 41 communicate with each other. In addition, adjacent links 41 can rotate relative to each other.

[0049] Each connecting rod 41 has a main body cylindrical portion 42, two pairs of protruding plate portions 43, 44, a connecting protrusion 45, and a connecting hole 46. A pair of protruding plate portions 43 protrude from the main body cylindrical portion 42 to one side, and a pair of protruding plate portions 44 protrude to the other side. The connecting protrusion 45 is provided on a pair of protruding plate portions 43. The protruding plate portion 43 and the protruding plate portion 44 are offset in the plate thickness direction. The connecting protrusion 45 protrudes, for example, from the main surface of the protruding plate portion 43 along the plate thickness direction toward the side where the corresponding protruding plate portion 44 is located. Connecting holes 46 are respectively formed in a pair of protruding plate portions 44. The connecting hole 46 penetrates the protruding plate portion 44 in the plate thickness direction, for example. The protruding plate portion 43 of one connecting rod 41 and the protruding plate portion 44 of another adjacent connecting rod 41 overlap, and the connecting protrusion 45 of one connecting rod 41 is inserted into the connecting hole 46 of the other connecting rod 41. Thus, the connecting protrusion 45 and the connecting hole 46 function as a shaft portion and a bearing portion, and a pair of adjacent connecting rods 41 are rotatably connected.

[0050] The central axis of the connecting hole 46 is the rotation axis of the connecting rod 41. Here, the main body cylindrical portion 42 is in the shape of a square cylinder, and the rotation axis extends in the long side direction of the main body cylindrical portion 42. In a state where the exterior member 10 is externally mounted on the guide member 40, the long side direction of the first cylindrical portion 21 is along the long side direction of the main body cylindrical portion 42. The exterior member 10 is bent such that the short side direction of the first cylindrical portion 21 becomes the radial direction with respect to the center of curvature.

[0051] The vehicle body fitting 50 fixes one end portion of the wire harness 100 to the vehicle body B. The door fitting 52 fixes the other end portion of the wire harness 100 to the sliding door D. For example, one end of the exterior member 10 and one end of the guide member 40 are supported by the vehicle body fitting 50. One end of the wiring member 30 extends from the vehicle body fitting 50, and the connector 32 at one end is connected to the mating connector provided on the vehicle body B. For example, the other end of the exterior member 10 and the other end of the guide member 40 are supported by the door fitting 52. The other end of the wiring member 30 extends from the door fitting 52, and the connector 32 at the other end is connected to the mating connector provided on the sliding door D.

[0052] The cylindrical portion 12 is in an overall elongated cylindrical shape capable of surrounding the entire length and entire circumference of the guide member 40. For example, the second cylindrical portion 22 is supported by the vehicle body fitting 50 and the door fitting 52. The guide member 40 passes through the exterior member 10 such that the rotation axis of the connecting rod 41 extends in the direction connecting a pair of second wall portions 14. In a state where the wire harness 100 is laid between the vehicle body B and the sliding door D, the rotation axis of the guide member 40 is oriented to extend along the vertical direction. The transition portion between the vehicle body fitting 50 and the door fitting 52 in the wire harness 100 is formed as a floating section that moves with the opening and closing of the sliding door D.

[0053] <Method for manufacturing a wire harness> First, connect the end of the wiring member 30 to the connector 32, and externally fit the guide member 40 onto the wiring member 30. Hereinafter, the structure in which the end of the wiring member 30 is connected to the connector 32 and the guide member 40 is externally fitted onto the wiring member 30 is defined as the harness main body. After the harness main body is completed, next, insert the harness main body into the outer member 10.

[0054] Here, since the outer member 10 is not provided with an axial slit, the outer member 10 cannot be opened. The outer member 10 is expanded by a jig or the like in such a manner that the internal space is enlarged. For example, as shown by the imaginary line in Figure 6 , the second cylindrical portion 22 is expanded. In this state, the harness main body is inserted into the outer member 10 from one end portion. The insertion of the harness main body into the outer member 10 is completed by passing one of the two connectors 32 through the outer member 10 and inserting the proximal portion of the other connector into the outer member 10. Then, the expanded state of the outer member 10 is eliminated, and it returns to the state shown by the solid line in Figure 6 .

[0055] The vehicle body fitting 50 and the door fitting 52 can also be assembled to the harness main body after the insertion of the harness main body into the outer member 10 is completed. The vehicle body fitting 50 and the door fitting 52 can also be assembled to the harness main body before the insertion of the harness main body into the outer member 10 is completed when passing through the outer member 10.

[0056] The harness 100 is completed by the insertion of the harness main body into the outer member 10 and the assembly of the vehicle body fitting 50 and the door fitting 52. In the state where the harness 100 is disposed in the vehicle, the outer member 10 is usually in an unexpanded state.

[0057] <Effects, etc.> According to the outer member 10 and the harness 100 configured as described above, the first corrugated portion 15 is provided to facilitate the bending of the outer member 10 in the axial direction. By providing the second corrugated portion 18 independent of the first corrugated portion 15 in the outer member 10, the expandability of the outer member 10 is improved.

[0058] In addition, the first corrugated portion 15 is provided on the pair of first wall portions 13, and the second corrugated portion 18 is provided on the pair of second wall portions 14. Thereby, the first corrugated portion 15 and the second corrugated portion 18 can be separately provided, and the second corrugated portion 18 hardly hinders the bending of the first cylindrical portion 21 caused by the first corrugated portion 15.

[0059] In addition, the second corrugated portion 18 is provided at the intermediate portion of the pair of second wall portions 14, and the first corrugated portion 15 extends to the end portion outside the second corrugated portion 18 in the pair of second wall portions 14. Thereby, when the first cylindrical portion 21 bends at the first corrugated portion 15, large wrinkles are hardly generated.

[0060] In addition, the end of the first valley portion 17 is connected to the second valley portion 20. Thereby, it is possible to suppress the internal space from becoming too small and improve the expandability of the exterior member 10.

[0061] In addition, the end of the first peak portion 16 is connected to the second peak portion 19. Thereby, it is possible to suppress the protruding amount of the second peak portion 19 on the outer surface of the exterior member 10 and improve the expandability of the exterior member 10.

[0062] In addition, the cylindrical portion 12 includes a second cylindrical portion 22, and only the second corrugated portion 18 of the first corrugated portion 15 and the second corrugated portion 18 is provided in the second cylindrical portion 22. Thereby, for the second cylindrical portion 22 that does not require bending along the axial direction, the expandability is also improved by the second corrugated portion 18.

[0063] In addition, the second corrugated portion 18 is provided along the axial direction over the entire cylindrical portion 12. Thereby, it is possible to use the second corrugated portion 18 to expand the entire cylindrical portion 12 along the axial direction.

[0064] In addition, according to the wire harness 100, the expandability of the exterior member 10 is improved, so that the connector 32 can be enlarged.

[0065] More specifically, by improving the expandability of the exterior member 10, more wiring members 30 of circuits can pass through the exterior member 10. For example, the member with the largest cross-sectional shape among the members passing through the exterior member 10 can be the connector 32. When the number of circuits of the wiring member 30 increases, the cross-sectional shape of the connector 32 becomes correspondingly larger. By improving the expandability of the exterior member 10, a larger connector 32 can pass through. As Figure 6 shown, the connector 32 can also be larger than the cylindrical portion 12 in the unexpanded state, and can pass through the cylindrical portion 12 by expanding the cylindrical portion 12.

[0066] Furthermore, it may sometimes be the case that one type of exterior member 10 is externally mounted on wire harness bodies with different numbers of circuits. That is, sometimes the same-sized exterior member 10 is externally mounted on multiple types of wire harness bodies with different sizes of connectors 32. In this case, when the size of the connector 32 passing through one type of exterior member 10 becomes larger, one type of exterior member 10 can correspond to more types with different numbers of circuits.

[0067] [Supplementary Note] In addition, the structures described in the above embodiments and each modification can be appropriately combined as long as they do not conflict with each other. Explanation of Reference Numerals

[0068] 10 Exterior member 12 Cylindrical portion 13 First wall portion 14 Second wall portion 15 First corrugated part 16 First peak part 17 First trough part 18 Second corrugated part 19 Second peak part 20 Second trough part 21 First cylindrical part 22 Second cylindrical part 30 Wiring component 32 Connector 40 Guide part 41 Connecting rod 42 Main body cylindrical part 43, 44 Protruding plate parts 45 Connecting protrusion 46 Connecting hole 50 Vehicle body fitting 52 Door fitting 100 Wiring harness B Vehicle body D Sliding door

Claims

1. An exterior member having a cylindrical portion for passing a wiring member therethrough, The cylindrical portion includes a first corrugated portion having first peaks and first valleys alternately arranged in the axial direction of the cylindrical portion, and a second corrugated portion having second peaks and second valleys alternately arranged in the circumferential direction of the cylindrical portion, and is formed of an elastic material.

2. The exterior member according to claim 1, wherein: The cylinder portion includes a first cylinder portion having a square cross section, The first tube portion includes a pair of first wall portions and a pair of second wall portions connecting the pair of first wall portions. The first corrugated portion is provided on the pair of first wall portions, The second bellows portion is provided on the pair of second wall portions.

3. The exterior member according to claim 2, wherein: The second corrugated portion is provided at a middle portion of the pair of second wall portions, The first corrugated portion extends to ends of the pair of second wall portions that are outside the second corrugated portion.

4. The exterior member according to claim 3, wherein: An end portion of the first valley portion is connected to the second valley portion.

5. The exterior member according to claim 4, wherein: An end portion of the first peak portion is connected to the second peak portion.

6. The exterior member according to any one of claims 2 to 5, wherein: The cylindrical portion includes a second cylindrical portion, and the second cylindrical portion is provided with only the second corrugated portion of the first corrugated portion and the second corrugated portion.

7. The exterior member according to claim 6, wherein: The second bellows portion is provided along the axial direction over the entirety of the cylindrical portion.

8. A wiring harness comprising: The exterior member according to any one of claims 1 to 5; a wiring member passing through the barrel; and A connector is provided at an end portion of the wiring member.

Images