Exterior member, protective device and wire harness

Abstract

To provide a technique capable of suppressing enlargement of a size in an exterior member including a lock structure.SOLUTION: An exterior member 10 comprises: a first division member 20 including a lock part 30; and a second division member 20 including a locked part 40 which is locked to the lock part 30. Each of the first division member 20 and the second division member 20 includes a division cylinder part 21, and protruding line parts 22 and 26 which protrude from an inner surface or an outer surface of the division cylinder part 21 and are fitted to an annular groove of a target member. The lock part 30 has lock pieces 32 and 36 which protrude from peripheral ends of the protruding line parts 22 and 26 in a circumferential direction. The locked part 40 has lock receiving parts 42 and 46 which are formed in a portion where the protruding line parts 22 and 26 are partially recessed, and are locked with the lock pieces 32 and 36.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present disclosure relates to an exterior member, a protection device, and a wire harness. [Background technology]

[0002] Patent Document 1 discloses a wire harness holder for holding a corrugated tube, in which a pair of semicircular ring members are locked by a locking portion and a locked portion to form a ring member. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2020-191720 A Summary of the Invention [Problem to be solved by the invention]

[0004] In the wire harness holder described in Patent Document 1, the locking portion and the locked portion are separately provided so as to protrude outward from the semicircular ring member, which causes the wire harness holder to become large in size.

[0005] Therefore, an object of the present invention is to provide a technique that can prevent an increase in size of an exterior member including a locking structure. [Means for solving the problem]

[0006] The exterior member of the present disclosure is an exterior member that is fitted to a wiring and is positioned on a target member having an annular groove, and includes a first divided member including a locking portion, and a second divided member including a locked portion that locks to the locking portion, wherein each of the first divided member and the second divided member includes a divided tubular portion and a convex rib portion that protrudes from an inner or outer surface of the divided tubular portion and fits into the annular groove, the locking portion has a locking piece that protrudes circumferentially from a peripheral end of the convex rib portion, and the locked portion has a locking receiving portion that is formed in a portion where the convex rib portion is recessed and that engages with the locking piece. Effect of the Invention

[0007] According to the present disclosure, an increase in size of an exterior member including a locking structure can be suppressed. [Brief description of the drawings]

[0008] [Figure 1] FIG. 1 is an exploded perspective view showing an exterior member according to the first embodiment. [Diagram 2] FIG. 2 is an exploded plan view showing the exterior member according to the first embodiment. [Diagram 3] FIG. 3 is an exploded side view showing the exterior member according to the first embodiment. [Figure 4] FIG. 4 is a front view showing the divided member and the target member. [Diagram 5] FIG. 5 is a cross-sectional view taken along line VV in FIG. [Figure 6] FIG. 6 is a cross-sectional view taken along line VI-VI in FIG. [Figure 7] FIG. 7 is an explanatory diagram showing a wire harness to which an exterior member is applied. [Figure 8] FIG. 8 is an explanatory diagram showing a wire harness to which an exterior member is applied. [Figure 9] FIG. 9 is a cross-sectional view taken along line IX-IX in FIG. [Figure 10] FIG. 10 is an exploded plan view showing a first modified example of the exterior member. [Figure 11] FIG. 11 is an exploded plan view showing a second modified example of the exterior member. [Figure 12] FIG. 12 is an exploded perspective view showing a third modified example of the exterior member. [Figure 13] FIG. 13 is an exploded perspective view showing a fourth modified example of the exterior member. [Figure 14] FIG. 14 is a cross-sectional view of an exterior member according to a fourth modified example. [Figure 15] FIG. 15 is an exploded perspective view showing a fifth modified example of the exterior member. [Figure 16] FIG. 16 is a cross-sectional view taken along line XVI-XVI in FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0009] [Description of the embodiments of the present disclosure] First, the embodiments of the present disclosure will be listed and described.

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

[0011] (1) An exterior component that is fitted to a wiring and is positioned on a target component having an annular groove, the exterior component comprising: a first divided component including a locking portion; and a second divided component including a locked portion that locks to the locking portion, wherein each of the first divided component and the second divided component includes a divided tubular component and a convex rib portion that protrudes from an inner or outer surface of the divided tubular component and fits into the annular groove, the locking portion has a locking piece that protrudes circumferentially from a peripheral end of the convex rib portion, and the locked portion has a locking receiving portion that is formed in a recessed portion of the convex rib portion and engages with the locking piece.

[0012] According to the exterior member of (1), the locking piece and the lock-receiving part are provided using the convex rib part that is convex to fit into the annular groove, so that the locking part and the locked part are unlikely to be separately convex in the exterior member. This makes it possible to suppress an increase in size due to the provision of the locking structure in the exterior member that includes the locking structure.

[0013] (2) In the exterior member of (1), the convex rib portion may be an inner rib portion provided on the inner surface of the split tubular portion, the locking piece may be an inner locking piece protruding in the circumferential direction from the peripheral end of the inner rib portion, and the locking receiving portion may be an inner locking receiving portion formed in a partially recessed portion of the inner rib portion and locking with the inner locking piece. By providing the inner locking piece and the inner locking receiving portion using the inner rib portion, the locking portion and the locked portion of the exterior member are unlikely to be separately convex. This makes it possible to prevent the size of the exterior member including the locking structure from increasing due to the provision of the locking structure.

[0014] (3) In the exterior member of (2), the first divided member and the second divided member may not be provided with the ridge portion on the outer surface of the split tubular portion. By not providing the ridge portion on the outer surface of the split tubular portion, an increase in size of the exterior member can be suppressed.

[0015] (4) In the exterior member of (2), an outer ridge portion may be further provided on the outer surface of the split tube portion as the ridge portion, and the outer ridge portion may not be provided with the locking piece and the locking receiving portion. Since the outer ridge portion does not have the locking piece and the locking receiving portion, the structure of the exterior member can be simplified.

[0016] (5) In the exterior member of (1), the convex rib portion may be an inner convex rib portion provided on the inner surface of the split tubular portion and an outer convex rib portion provided on the outer surface of the split tubular portion, the locking piece may be an outer locking piece protruding in the circumferential direction from the peripheral end of the outer convex rib portion, and the locking receiving portion may be an outer locking receiving portion formed in a partially recessed portion of the outer convex rib portion and locking with the outer locking piece. By providing the outer locking piece and the outer locking receiving portion using the outer convex rib portion, the locking portion and the locked portion of the exterior member are unlikely to be separately convex. This makes it possible to prevent the size of the exterior member including the locking structure from increasing due to the provision of the locking structure.

[0017] (6) In the exterior member of (5), the locking piece may further include an inner locking piece protruding in the circumferential direction from the peripheral end of the inner ridge portion, and the locking receiving portion may further include an inner locking receiving portion formed in a partially recessed portion of the inner ridge portion and locking with the inner locking piece. As a result, two types of locking structures are provided in the exterior member by providing a locking structure using the inner ridge portion and a locking structure using the outer ridge portion. This increases the locking strength between the first and second separate members.

[0018] (7) In the exterior member of (5) or (6), the inner ridge portion may not be provided with the locking piece and the lock-receiving portion. By not providing the locking piece and the lock-receiving portion on the inner ridge portion, the structure of the exterior member can be simplified.

[0019] (8) In the exterior member of any one of (1) to (7), the first divided member and the second divided member may have the same shape. This allows the first divided member and the second divided member to be a common part, thereby preventing an increase in the number of different parts.

[0020] (9) In the exterior member of any one of (1) to (8), the outer ridge portion may be provided on an outer surface of a portion where an uneven shape is formed by the inner ridge portion. This makes it possible to prevent the length of the exterior member along the axial direction from becoming long even when the inner ridge portion and the outer ridge portion are provided.

[0021] (10) A protective device according to the present disclosure includes an outer casing member selected from any one of (1) to (7), a corrugated tube held to the outer casing member by the inner ridge portion so as not to rotate around a central axis, and a rotational support member that rotatably holds the outer casing member by the outer ridge portion.

[0022] (11) A wire harness according to the present disclosure includes the protection device according to (10) and wiring passed through the protection device.

[0023] [Details of the embodiment of the present disclosure] Specific examples of the exterior member of the present disclosure will be described below with reference to the drawings. Note that the present disclosure is not limited to these examples, but is defined by the claims, and is intended to include all modifications within the meaning and scope of the claims.

[0024] [Embodiment 1] The exterior member according to the first embodiment will be described below. Fig. 1 is an exploded perspective view showing the exterior member 10 according to the first embodiment. Fig. 2 is an exploded plan view showing the exterior member 10 according to the first embodiment. Fig. 3 is an exploded side view showing the exterior member 10 according to the first embodiment. Fig. 4 is a front view showing the divided member 20 and the target member. Fig. 5 is a cross-sectional view taken along the line VV in Fig. 3. Fig. 6 is a cross-sectional view taken along the line VI-VI in Fig. 3.

[0025] As shown in FIG. 4, the exterior member 10 is fitted to the wiring 80. The exterior member 10 is positioned on a target member having an annular groove. The target member is, for example, a corrugated tube 50 or a rotating support member 60. In the example shown in FIG. 4, both the corrugated tube 50 and the rotating support member 60 are provided as the target member. Here, the corrugated tube 50 has a shape in which annular convex portions 51 and annular concave portions 52 are alternately and continuously arranged in the axial direction. The wiring 80 is passed through the corrugated tube 50. The exterior member 10 covers the corrugated tube 50 through which the wiring 80 is passed. The exterior member 10 is fitted to the wiring 80 with the corrugated tube 50. In the corrugated tube 50, the annular concave portion 52 corresponds to the annular groove. The rotating support member 60 includes a protective tube portion 61. The protective tube portion 61 includes a bearing portion 62 having an annular groove 63 formed on its inner surface. The exterior member 10 is rotatably supported by the bearing portion 62.

[0026] The exterior member 10 includes a first divided member 20A including a locking portion 30, and a second divided member 20B including a locked portion 40 that locks to the locking portion 30. The exterior member 10 formed by combining the first divided member 20A and the second divided member 20B has a cylindrical shape. In the present disclosure, the circumferential direction, the radial direction, and the axial direction correspond to the circumferential direction, the radial direction, and the axial direction of the cylindrical exterior member 10. The ratio of division between the first divided member 20A and the second divided member 20B is not particularly limited and can be set appropriately. In the present embodiment, the first divided member 20A and the second divided member 20B are divided in half.

[0027] In this embodiment, each of the first divided member 20A and the second divided member 20B includes a locking portion 30 and a locked portion 40. In this embodiment, the first divided member 20A and the second divided member 20B have the same shape. In other words, the exterior member 10 includes a pair of divided members 20 having the same shape. One of the pair of divided members 20 is the first divided member 20A, and the other is the second divided member 20B. Hereinafter, when there is no particular need to distinguish between the first divided member 20A and the second divided member 20B, they will simply be referred to as divided members 20.

[0028] Each divided member 20 includes a divided cylindrical portion 21 and a convex rib portion protruding from the inner or outer surface of the divided cylindrical portion 21. The convex rib portion is a portion that fits into an annular groove of a target member. The locking portion 30 has a locking piece that protrudes in the circumferential direction from the peripheral end of the convex rib portion. The locked portion 40 has a locking receiving portion that is formed in a recessed portion of the convex rib portion and locks with the locking piece. Each divided member 20 is, for example, an injection-molded product made of resin.

[0029] The split tubular portion 21 is formed in a semi-cylindrical shape (here, semi-cylindrical). A pair of split tubular portions 21 are joined together to form a cylindrical tubular portion. The corrugated tube 50 is passed through the tubular portion. By forming the split tubular portion 21, each split member 20 is placed on the corrugated tube 50 from the side to form the exterior member 10. The diameter and axial length of the split tubular portion 21 are not particularly limited and can be set appropriately. The diameter of the split tubular portion 21 may be, for example, approximately the same as the diameter of the target corrugated tube 50. If one set of annular convex portion 51 and annular concave portion 52 of the corrugated tube 50 is one period, the axial length of the split tubular portion 21 may be, for example, a number of periods of the corrugated tube 50 (for example, three to nine periods).

[0030] Here, the convex rib portion includes an inner convex rib portion 22 that protrudes onto the inner surface of the split tubular portion 21, and an outer convex rib portion 26 that protrudes onto the outer surface of the split tubular portion 21. The inner convex rib portion 22 fits into, for example, an annular recess 52 of the corrugated tube 50. In the corrugated tube 50, the annular recess 52 is an annular groove. The outer convex rib portion 26 fits into, for example, an annular groove 63 of the rotation support member 60. However, it is not essential that both the inner convex rib portion 22 and the outer convex rib portion 26 are provided as the convex rib portion. Of the inner convex rib portion 22 and the outer convex rib portion 26, only the inner convex rib portion 22 may be provided as the convex rib portion, or only the outer convex rib portion 26 may be provided.

[0031] Here, inner convex streaks 22A, 22B, and 22C are provided as the inner convex streaks 22. The inner convex streaks 22A are provided in the middle of the split tubular portion 21 along the axial direction of the split tubular portion 21, the inner convex streaks 22B are provided at one end of the split tubular portion 21, and the inner convex streaks 22C are provided at the other end of the split tubular portion 21. A plurality of inner convex streaks 22A are provided at intervals along the axial direction. In the example shown in FIG. 4, four inner convex streaks 22A are provided. The locking portion 30 and the locked portion 40 are provided using two inner convex streaks 22A1 of the four inner convex streaks 22A that are closer to the inner convex streaks 22C. The locking portion 30 and the locked portion 40 are not provided on the two inner convex streaks 22A2 of the four inner convex streaks 22A that are closer to the inner convex streaks 22B.

[0032] The inner ridge portion 22A has a plurality of divided ridge portions 23 formed by dividing the ridge portion in the circumferential direction. The inner ridge portions 22B and 22C have a plurality of divided ridge portions 23 that are not divided in the circumferential direction. The inner ridge portions 22B and 22C extend continuously from one end to the other end of the divided tubular portion 21 along the circumferential direction.

[0033] The divided convex streak portion 23 in the inner convex streak portion 22A is one of the divided convex streak portions of one circumference. The divided convex streak portions 23A and 23B having different circumferential lengths are provided as the divided convex streak portion 23. In the example shown in the present embodiment, the divided convex streak portion 23A is one of the divided convex streak portions of one circumference divided into four. In the circumferential direction, the divided convex streak portion 23A is located at the center of the divided cylindrical portion 21, and the divided convex streak portions 23B are located on both sides of the divided convex streak portion 23A with a gap therebetween. The length of the divided convex streak portion 23A along the circumferential direction and the distance between the divided convex streak portion 23A and the divided convex streak portion 23B are not particularly limited and can be set appropriately. For example, as shown in Figure 6, the length of the divided ridge portion 23A along the circumferential direction may be the arc length of the divided tubular portion for an interior angle of 70 degrees, and the distance between the divided ridge portion 23A and the divided ridge portion 23B along the circumferential direction may be the arc length of the divided tubular portion for an interior angle of 20 degrees.

[0034] Of the four inner convex streak portions 22A, the two inner convex streak portions 22A closer to the inner convex streak portion 22C are not provided with the locking portion 30 and the locked portion 40. The two split convex streak portions 23B in the inner convex streak portion 22A extend along the circumferential direction to the end of the split tubular portion 21. The length of the split convex streak portion 23B along the circumferential direction is, for example, half the length of the split convex streak portion 23A along the circumferential direction. In the inner convex streak portion 22A in which the locking portion 30 and the locked portion 40 are provided, one of the two split convex streak portions 23B extends along the circumferential direction to the end of the split tubular portion 21, and the other does not extend along the circumferential direction to the end of the split tubular portion 21.

[0035] The inner convex rib portions 22A, 22B sandwich the corrugated tube 50 and hold it so that it cannot rotate around its axis. In other words, when the corrugated tube 50 rotates around its axis, the exterior member 10 also rotates around its axis. For example, the protruding dimension of the inner convex rib portions 22A, 22B from the inner surface of the divided tubular portion 21 may be made larger than the depth dimension of the annular groove in the corrugated tube 50 (the difference between the radius of the outer surface of the annular convex portion 51 and the radius of the outer surface of the annular recess 52), so that the protruding tip of the inner convex rib portion 22A may contact the bottom surface of the annular recess 52.

[0036] One end of the corrugated tube 50 is accommodated within the exterior member 10. One end of the corrugated tube 50 is located on the inner ridge portion 22C side. The inner ridge portion 22C holds the axial end of the corrugated tube 50 so that the one end of the corrugated tube 50 does not slip out beyond the inner ridge portion 22C along the axial direction. For example, the inner diameter of the inner ridge portion 22C may be smaller than the inner diameter of the corrugated tube 50. The other end of the corrugated tube 50 extends outward from the end on the inner ridge portion 22B side beyond the exterior member 10. In the inner ridge portions 22A and 22B, the height of the wall on the inner ridge portion 22C side is higher than the height of the wall on the opposite side. This makes it possible to prevent the corrugated tube 50 from slipping out of the inner ridge portion 22B to the outside, even if the inner ridge portion 22B, whose wall is lower than the inner ridge portion 22C, is provided at the end of the divided member 20 from which the corrugated tube 50 extends.

[0037] The outer convex streak portion 26 is provided in a continuous manner along the circumferential direction, similar to the inner convex streak portion 22B. The outer convex streak portion 26 is not divided along the circumferential direction within one divided member 20 (as in the inner convex streak portion 22A). One end of the outer convex streak portion 26 reaches one end of the divided tubular portion 21 along the circumferential direction, and the other end does not reach the other end of the divided tubular portion 21. In this embodiment, only one outer convex streak portion 26 is provided along the axial direction of the divided tubular portion 21. A plurality of outer convex streak portions 26 may be provided along the axial direction of the divided tubular portion 21. The position at which the outer convex streak portion 26 is provided along the axial direction of the divided tubular portion 21 is not particularly limited and can be set appropriately. In the example shown in FIG. 4, the outer convex streak portion 26 is provided on the outer surface of the portion where the uneven shape is formed by the inner convex streak portion 22A for biting the corrugated tube 50. The outer convex streak portion 26 has a flange portion 27 and an annular rib 28.

[0038] The flange 27 protrudes from the outer surface of the split tubular portion 21. For example, the thickness of the flange 27 is constant from the base end to just before the tip end of the flange 27 along the protruding direction from the split tubular portion 21, and the corners of the tip end of the flange 27 along the protruding direction from the split tubular portion 21 are rounded. The diameter and thickness of the flange 27 are not particularly limited and can be set appropriately. For example, the diameter and thickness of the flange 27 may be set so that the outer convex rib portion 26 does not come out of the annular groove 63 along the axial direction when the exterior member 10 is supported by the rotation support member 60.

[0039] The annular rib 28 protrudes from an intermediate portion or a tip portion of the flange portion 27 along the protruding direction from the split cylindrical portion 21 to one side or both sides along the axial direction of the split cylindrical portion 21. In the example shown in Fig. 4, the annular rib 28 protrudes from an intermediate portion of the flange portion 27 along the protruding direction from the split cylindrical portion 21 to both sides along the axial direction of the split cylindrical portion 21. The annular rib 28 does not necessarily have to be provided.

[0040] In this embodiment, the locking pieces include an inner locking piece 32 and an outer locking piece 36. The locking receiving portions include an inner locking receiving portion 42 that locks with the inner locking piece 32 and an outer locking receiving portion 46 that locks with the outer locking piece 36.

[0041] The inner locking piece 32 protrudes in the circumferential direction from the peripheral end of the inner ridge portion 22. The inner locking receiving portion 42 is formed in a partially recessed portion of the inner ridge portion 22. Here, the inner locking piece 32 protrudes in the circumferential direction from the peripheral end of one of the two split ridge portions 23B. The inner locking receiving portion 42 is provided in the recessed portion of the other of the two split ridge portions 23B.

[0042] The inner locking piece 32 has a base 33 and a claw 34. The base 33 protrudes in the circumferential direction from the circumferential end of the split ridge portion 23B1. The cross-sectional shape of the base 33 is formed in the same shape as the cross-sectional shape of the split ridge portion 23B. Here, the same position as the circumferential end of the split ridge portion 23B along the circumferential direction is the circumferential end of the split ridge portion 23B, and the part protruding from the circumferential end of the split ridge portion 21 is the base 33. The claw 34 protrudes from the base 33 in a direction intersecting the circumferential direction. In the example shown in FIG. 6, the claw 34 protrudes from the base 33 to the outer periphery along the radial direction. The claw 34 protrudes from the base 33 toward the split ridge portion 21 along the radial direction. For example, the protruding dimension of the claw 34 from the base 33 is equal to or smaller than the thickness dimension of the split ridge portion 21.

[0043] The inner locking receiving portion 42 is provided at the divided ridge portion 23B2. In the circumferential direction, the end of the divided ridge portion 23B2 does not reach the end of the divided tubular portion 21, and a locking hole is formed as the inner locking receiving portion 42 next to the divided ridge portion 23B2 at the end of the divided tubular portion 21. The inner locking piece 32 is locked to the inner locking receiving portion 42 by the claw portion 34 being caught in the locking hole. When the inner locking piece 32 is locked to the inner locking receiving portion 42, the base 33 and the divided ridge portion 23B2 face each other in the circumferential direction. Here, the fact that the base 33 and the divided ridge portion 23B2 face each other in the circumferential direction includes a case where the base 33 and the divided ridge portion 23B2 are separated from each other in the circumferential direction, as well as a case where the base 33 and the divided ridge portion 23B2 are in contact with each other.

[0044] The outer locking piece 36 protrudes in the circumferential direction from the peripheral end of the outer ridge portion 26. The outer locking receiving portion 46 is formed in a partially recessed portion of the outer ridge portion 26. Here, the outer locking piece 36 protrudes in the circumferential direction from one end of the outer ridge portion 26 along the circumferential direction. The outer locking receiving portion 46 is provided in a portion where the other end of the outer ridge portion 26 along the circumferential direction is recessed.

[0045] The outer locking piece 36 has a base 37 and a claw portion 38. The base 37 protrudes in the circumferential direction from one end of the outer ridge portion 26 along the circumferential direction. The base 37 is formed in the same shape as the outer ridge portion 26. The claw portion 38 protrudes from the base 37 in a direction intersecting the circumferential direction. In the example shown in FIG. 5, the claw portion 38 protrudes from the base 37 toward the inner periphery along the radial direction. The claw portion 38 protrudes from the base 37 toward the split tube portion 21 along the radial direction. For example, the protruding dimension of the claw portion 38 from the base 37 is equal to or smaller than the thickness dimension of the split tube portion 21.

[0046] The outer locking receiving portion 46 is provided at a portion where the other end of the outer ridge portion 26 is shortened. In the circumferential direction, the other end of the outer ridge portion 26 does not reach the end of the split tube portion 21, and a locking hole is formed at the end of the split tube portion 21 where the outer ridge portion 26 is not present. The outer locking piece 36 is locked to the outer locking receiving portion 46 by the claw portion 38 being caught in the locking hole. When the outer locking piece 36 is locked to the outer locking receiving portion 46, the base 37 and the outer ridge portion 26 face each other in the circumferential direction. Here, the fact that the base 37 and the outer ridge portion 26 face each other in the circumferential direction includes a case where the base 37 and the outer ridge portion 26 are separated from each other in the circumferential direction, as well as a case where the base 37 and the outer ridge portion 26 are in contact with each other.

[0047] The locking portion 30 and the locked portion 40 are provided on the inner convex streak portion 22 on both sides of the outer convex streak portion 26 along the axial direction. In the example shown in FIG. 4, a part of the region where the outer convex streak portion 26 is provided overlaps with the region where one of the inner convex streak portions 22 is provided along the axial direction. Under this condition, in order to form the locking recess of the inner locking receiving portion 42 in the split tubular portion 21, the thickness of the flange portion 27 is made small at one end of the outer convex streak portion 26 along the circumferential direction. In one split tubular portion 21, the inner locking piece 32 and the outer locking piece 36 are provided at ends on opposite sides along the circumferential direction. In one split tubular portion 21, the inner locking piece 32 and the outer locking piece 36 may be provided at ends on the same side along the circumferential direction.

[0048] <Effects, etc.> According to the exterior member 10 configured as above, the locking pieces 32, 36 and the locking receiving parts 42, 46 are provided using the convex rib parts 22, 26 that are convex to fit into the annular groove, so that the locking part 30 and the locked part 40 are unlikely to be separately convex in the exterior member 10. This makes it possible to suppress an increase in size due to the provision of the locking structure in the exterior member 10 including the locking structure. Particularly in this embodiment, the locking part 30 and the locked part 40 are within the range in which the split tube part 21 and the convex rib parts 22, 26 are originally located. This prevents an increase in size due to the provision of the locking structure in the exterior member 10 including the locking structure. Here, the range in which the split tube part 21 and the convex rib parts 22, 26 are originally located is the range of the split tube part and the convex rib parts when it is assumed that there is no locking structure and the split tube part 21 and the convex rib parts 22, 26 are continuous with the part of the locking structure.

[0049] In addition, by providing the outer locking piece 36 and the outer locking receiving portion 46 using the outer convex rib portion 26, the locking portion 30 and the locked portion 40 are unlikely to be separately convex on the outside of the split tubular portion 21 in the exterior member 10. This makes it possible to prevent the exterior member 10, which includes a locking structure, from becoming larger in size due to the provision of the locking structure.

[0050] In addition, by providing the inner locking piece 32 and the inner locking receiving portion 42 using the inner convex rib portion 22, the locking portion 30 and the locked portion 40 are unlikely to be separately convex on the inside of the split tubular portion 21 in the exterior member 10. This makes it possible to prevent the exterior member 10, which includes a locking structure, from becoming larger in size due to the provision of the locking structure.

[0051] Furthermore, by providing a locking structure using the inner ridge portion 22 and a locking structure using the outer ridge portion 26, two types of locking structures are provided in the exterior member 10. This increases the locking strength between the first separate member 20A and the second separate member 20B.

[0052] Furthermore, since the first divided member 20A and the second divided member 20B have the same shape, the first divided member 20A and the second divided member 20B can be made into a common part, thereby preventing an increase in the number of different parts.

[0053] Moreover, the outer convex rib portion 26 is provided on the outer surface of the portion where the uneven shape is formed by the inner convex rib portion 22. This makes it possible to prevent the length of the exterior member 10 along the axial direction from becoming long, even when the inner convex rib portion 22 and the outer convex rib portion 26 are provided.

[0054] [Note] <Application examples of exterior member 10> An application example of the exterior member 10 in a vehicle will be described. Figures 7 and 8 are explanatory diagrams showing an arrangement structure 100 in which a wire harness 90 to which the exterior member 10 is applied is arranged in a vehicle. Figure 9 is a cross-sectional view taken along line IX-IX in Figure 8. Note that in Figure 9, the exterior member 10 and the corrugated tube 50 are not shown in cross-section.

[0055] The wire harness 90 includes a protection device 70 and wiring 80 passed through the protection device 70. The protection device 70 includes an exterior member 10, a corrugated tube 50, and a rotation support member 60. The pair of divided members 20 sandwich the corrugated tube 50, and the locking portion 30 and the locked portion 40 are locked, so that the exterior member 10 is sheathed on the corrugated tube 50. The corrugated tube 50 is held by the exterior member 10 using the inner ridge portion 22 so as not to rotate around the central axis. The rotation support member 60 holds the exterior member 10 rotatably using the outer ridge portion 26.

[0056] The wire harness 90 is laid between the vehicle body VB and the sliding door DR. One end of the wire harness 90 is provided with a connector C1 to be connected to a device on the vehicle body VB side, and the other end is provided with a connector C2 to be connected to a device on the door DR side. The wire harness 90 transmits power or signals between the devices.

[0057] A portion of the wire harness 90 along its extending direction is attached to the vehicle body VB via a vehicle body mounting portion 101. Another portion of the wire harness 90 along its extending direction is attached to the door DR via a door mounting portion 102. Along the extending direction of the wire harness 90, a bridge portion between the vehicle body mounting portion 101 and the door mounting portion 102 and the door mounting portion 102 move relative to the vehicle body VB so as to follow the sliding door DR when the sliding door DR is opened or closed. The vehicle body mounting portion 101 is supported at a fixed position on the vehicle body VB when the sliding door DR is opened or closed.

[0058] The door mounting portion 102 includes a base plate portion 103 in which guide grooves 104, 105 are formed, and an urging member 106. The base plate portion 103 is fixed to a door panel or the like of the door DR. A door trim is disposed on the vehicle inner side of the base plate portion 103. The rotation support member 60 is provided with sliders 64, 65 that move along the guide grooves 104, 105. The urging member 106 urges an upper portion of the rotation support member 60 upward. The sliders 64, 65 move along the guide grooves 104, 105 as the door DR is opened and closed while being urged by the urging member 106, so that the movement of the crossing portion of the wire harness 90 is performed smoothly. In FIG. 8, the base plate portion 103 in a state in which the door DR is open is shown by a solid line, and the base plate portion 103 in a state in which the door DR is closed is shown by a virtual line.

[0059] At this time, a twisting force may be applied to the crossing portion when the crossing portion moves. In the protection device 70, the rotation support member 60 rotatably supports the exterior member 10, and the exterior member 10 supports the corrugated tube 50 non-rotatably, so that the protection device 70 can absorb the twisting force and the application of a large twisting force to the wiring 80 is suppressed. In the example shown in FIG. 9, the sliders 64, 65 are shown in phantom lines in a state in which the crossing portion of the wire harness 90 is stepped on when the door DR is open. In this way, the sliders 64, 65 move when stepped on, so that the application of excessive tension to the wire harness 90 is suppressed. The guide grooves 104, 105 are provided with a portion that guides the opening and closing of the door DR and a portion that guides between a stepped state and a normal state in the open state.

[0060] Note that the guide groove 105 may be omitted from the base plate portion 103, and only the guide groove 104 may be provided. In this case, the slider 65 may be omitted from the rotation support member 60, and only the slider 64 may be provided. In this case, in the rotation support member 60, most of the protective cylinder portion 61 along the extension direction of the wire harness 90 may be the portion that forms the bearing portion 62, and the protective cylinder portion 61 may be composed of only the bearing portion 62. This allows the rotation support member 60 to be short along the extension direction of the wire harness 90, and the size of the protection device 70 to be reduced.

[0061] The following describes modified examples of the exterior member 10. In the following description of the modified examples, the same components as those described above are given the same reference numerals, and the description thereof will be omitted.

[0062] <Modification of the position of the locking part> FIG. 10 is an exploded plan view showing a first modified example of the exterior member 10. As shown in FIG.

[0063] The exterior member 110 according to the first modified example also has a pair of divided members 120 having the same shape, and each divided member 120 has an inner ridge portion 22 and an outer ridge portion 26. In the exterior member 110, the inner ridge portion 22 is not provided with the inner locking piece 32 and the inner locking receiving portion 42. In the exterior member 110, the locking portion 130 has only the outer locking piece 36 out of the inner locking piece 32 and the outer locking piece 36, and the locked portion 140 has only the outer locking receiving portion 46 out of the inner locking receiving portion 42 and the outer locking receiving portion 46. According to the exterior member 110, since the inner ridge portion 22 is not provided with a locking piece or a locking receiving portion, the structure of the exterior member 110 can be simplified.

[0064] FIG. 11 is an exploded plan view showing a second modified example of the exterior member 10. As shown in FIG.

[0065] The exterior member 210 according to the second modified example also has a pair of divided members 220 having the same shape, and each divided member 220 has an inner convex rib portion 22 and an outer convex rib portion 26. In the exterior member 210, the outer convex rib portion 26 is not provided with the outer locking piece 36 and the outer locking receiving portion 46. In the exterior member 210, the locking portion 230 has only the inner locking piece 32 of the inner locking piece 32 and the outer locking piece 36, and the locked portion 240 has only the inner locking receiving portion 42 of the inner locking receiving portion 42 and the outer locking receiving portion 46. According to the exterior member 210, since the outer convex rib portion 26 is not provided with a locking piece and a locking receiving portion, the structure of the exterior member 210 can be simplified.

[0066] FIG. 12 is an exploded perspective view showing a third modified example of the exterior member 10. As shown in FIG.

[0067] The exterior member 310 according to the third modified example also has a pair of split members 320 having the same shape. The split member 320 has the inner convex rib portion 22 but not the outer convex rib portion 26. Since the outer convex rib portion 26 is not provided, the outer locking piece 36 and the outer locking receiving portion 46 are naturally not provided. In the exterior member 310, the locking portion 330 has only the inner locking piece 32 of the inner locking piece 32 and the outer locking piece 36, and the locked portion 340 has only the inner locking receiving portion 42 of the inner locking receiving portion 42 and the outer locking receiving portion 46. According to the exterior member 310, since no convex rib portion is provided on the outer surface of the split tube portion 21, the size of the exterior member 310 can be suppressed from becoming large.

[0068] In the example shown in Fig. 12, the split member 320 has six inner ridges 22, which are formed in a continuous manner in the circumferential direction. Of the six inner ridges 22, three inner ridges 22D in odd-numbered order from the plane of Fig. 12 are provided with inner locking pieces 32 and inner locking receiving portions 42. Furthermore, the inner locking receiving portions 42 are not formed with through holes penetrating the split tubular portion 21, but with bottomed holes recessed from the inner surface of the split tubular portion 21 toward the outer surface. Of the six inner ridges 22, three inner ridges 22 in even-numbered order from the plane of Fig. 12 reach from one circumferential end to the other end of the split tubular portion 21, similar to the inner ridges 22B.

[0069] <Modifications of the shape of the locking piece> Fig. 13 is an exploded perspective view showing a fourth modified example of the exterior member 10. Fig. 14 is a cross-sectional view of an exterior member 410 according to the fourth modified example. Fig. 14 is a cross-sectional view taken at the same position as in Fig. 5.

[0070] In the exterior member 410 according to the fourth modification, a pair of divided members 420 having the same shape are provided, and each divided member 420 is provided with an inner convex streak portion 22 and an outer convex streak portion 26. In the exterior member 410, the shape of the locking piece 436 in the locking portion 430 is different from the shape of the locking piece 36. The claw portion 438 of the locking piece 436 is provided so as to protrude from the base portion 437 to the outer periphery side along the radial direction. The claw portion 438 protrudes from the base portion 437 to the opposite side to the divided tube portion 21. The shape of the base portion 437 is such that the tip side portion 27A of the flange portion 27 is missing from the annular rib 28 along the protruding direction from the shape of the outer convex streak portion 26. In the locking piece 436, the claw portion 438 is provided in place of the portion corresponding to the tip side portion 27A of the flange portion 27. The locking receiving portion 446 in the locked portion 440 has a portion corresponding to the tip portion 27A of the flange portion 27 instead of the base portion 437. A locking hole that locks with the claw portion 438 is formed in the portion of the locking receiving portion 446 that corresponds to the tip portion 27A. The configuration of the locking piece 436 and the locking receiving portion 446 is applied to the outer locking piece and the outer locking receiving portion, but may also be applied to the inner locking piece and the inner locking receiving portion.

[0071] Fig. 15 is an exploded perspective view showing a fifth modified example of the exterior member 10. Fig. 16 is a cross-sectional view taken along line XVI-XVI in Fig. 15.

[0072] In the exterior member 510 according to the fifth modification, a pair of divided members 520 having the same shape are provided, and each divided member 520 is provided with an inner convex streak portion 22 and an outer convex streak portion 26. In the exterior member 510, the shape of the locking piece 536 in the locking portion 530 is different from the shape of the locking piece 36. The claw portion 538 of the locking piece 536 is provided so as to protrude in the axial direction from the base portion 537. The base portion 537 is thinner than the outer convex streak portion 26. An insertion hole H1 and a locking hole H2 are formed as the lock receiving portion 546 in the locked portion 540. The insertion hole H1 is formed so as to be recessed in the circumferential direction from the end face of the outer convex streak portion 26. The locking hole H2 is located inside the end edge of the outer convex streak portion 26 along the circumferential direction. The locking hole H2 is formed so as to penetrate the flange portion 27 in the axial direction (thickness direction of the flange portion 27). The locking hole H2 is formed on the base end side of the annular rib 28 of the flange portion 27. Inside the outer protruding strip portion 26, the locking hole H2 and the insertion hole H1 are connected. The base portion 537 and the claw portion 538 are inserted into the insertion hole H1. At this time, the claw portion 538 is elastically deformed so as to become smaller by receiving a force from the inner surface of the insertion hole H1. When the base end of the base portion 537 is inserted into the insertion hole H1, the claw portion 538 reaches the locking hole H2, and the claw portion 538 elastically returns to its original state and is caught in the locking hole H2. The configuration of the locking piece 536 and the locking receiving portion 546 is applied to the outer locking piece and the outer locking receiving portion, but may also be applied to the inner locking piece and the inner locking receiving portion.

[0073] The configurations described in the above embodiments and modifications can be combined as appropriate as long as they are not mutually inconsistent. [Explanation of symbols]

[0074] 10, 110, 210, 310, 410, 510 Exterior materials 20, 120, 220, 320, 420, 520 Partition 21 Split cylinder part 22, 22A, 22A1, 22A2, 22B, 22C, 22D Inner protrusion 23, 23A, 23B, 23B1, 23B2 Split protrusion 26 Outer protrusion 27 Flange 27A Tip side part 28 Circular Rib 30, 130, 230, 330, 430, 530 Lock section 32 Inner locking piece (locking piece) 33, 37, 437, 537 base 34, 38, 438, 538 Claws 36, 436, 536 Outer locking piece (locking piece) 40, 140, 240, 340, 440, 540 Locked part 42 Inner locking receiving part (locking receiving part) 46, 446, 546 Outside locking receiver (locking receiver) 50 Corrugated tube (target material) 51 Annular protrusion 52 Annular recess (annular groove) 60 Rotating support member (target member) 61 Protective barrel 62 Bearing section 63 Annular Groove 64, 65 slider 70 Protective devices 80 Wiring 90 Wire Harness 100 arrangement structure 101 Vehicle body mounting part 102 Door mounting part 103 Base plate part 104, 105 Guide groove 106 Pressing member C1, C2 Connectors DR Door H1 Insertion hole H2 locking hole VB Body

Claims

1. An exterior member that is fitted to a wiring and positioned to a target member having an annular groove, a first divided member including a lock portion; a second divided member including a locked portion that locks to the locking portion; Equipped with each of the first divided member and the second divided member includes a divided cylindrical portion and a protruding ridge portion protruding from an inner surface or an outer surface of the divided cylindrical portion and fitted into the annular groove; The locking portion has a locking piece protruding in a circumferential direction from a peripheral end of the protruding portion, The locked portion is an exterior member having a locking receiving portion formed in a recessed portion of the protruding portion and configured to lock with the locking piece.

2. The exterior member according to claim 1, As the convex rib portion, an inner convex rib portion is provided on the inner surface of the split cylindrical portion, As the locking piece, an inner locking piece is provided which protrudes in a circumferential direction from a peripheral end of the inner convex portion, The outer casing member has an inner locking receiving portion formed in a recessed portion of the inner convex streak portion, the inner locking receiving portion being configured to lock with the inner locking piece.

3. The exterior member according to claim 2, The first divided member and the second divided member each have an exterior member in which the convex ridge portion is not provided on the outer surface of the divided tubular portion.

4. The exterior member according to claim 2, As the convex rib portion, an outer convex rib portion is further provided on the outer surface of the split cylindrical portion, The outer ridge portion is not provided with the locking piece or the locking receiving portion.

5. The exterior member according to claim 1, As the convex rib portion, an inner convex rib portion is provided on the inner surface of the split cylindrical portion, and an outer convex rib portion is provided on the outer surface of the split cylindrical portion, As the locking piece, an outer locking piece is provided which protrudes in a circumferential direction from a peripheral end of the outer convex portion, The outer casing member has an outer locking receiving portion formed in a recessed portion of the outer protruding strip and configured to lock with the outer locking piece.

6. The exterior member according to claim 5, The locking piece further includes an inner locking piece protruding in a circumferential direction from a peripheral end of the inner protruding portion, The exterior member further includes an inner locking receiving portion formed in a recessed portion of the inner convex streak portion and configured to lock with the inner locking piece.

7. The exterior member according to claim 5, The inner protruding portion is not provided with the locking piece or the locking receiving portion.

8. The exterior member according to any one of claims 1 to 7, The first divided member and the second divided member have the same shape.

9. The exterior member according to any one of claims 4 to 7, The outer ridge portion is provided on the outer surface of a portion where an uneven shape is formed by the inner ridge portion.

10. The exterior member according to any one of claims 1 to 7, a corrugated tube held by the exterior member by the inner ridge portion so as not to rotate about a central axis; a rotation support member that rotatably holds the exterior member by the outer ridge portion; A protection device comprising:

11. A protection device according to claim 10; A wire passing through the protection device; The wire harness includes:

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