Holding member and wire harness

Abstract

To provide a holding member that can prevent insertion of an electric wire between members.SOLUTION: A holding member 1 comprises a first member 10A and a second member 10B. The first member and the second member have an engagement structure in which the members are engaged along a first direction X, and form a holding structure and an opening from which an electric wire is led out to an external space. The holding structure sandwiches and holds a terminal part 2a of an exterior member 2 with groove parts 11 provided in the first member and the second member. The first member and the second member are provided with a regulation structure 70 that regulates an electric wire from being inserted into the gap between the first member and the second member. The regulation structure has a projection 14 provided on one of the first member and the second member, and an opposite wall 15 provided on the other. The regulation structure is configured such that, in a state where the first member and the second member are most separated from each other within a range permitted by backlash of the engagement structure, the projection and the opposite wall overlap each other when viewed from an extension direction Y.SELECTED DRAWING: Figure 8

Description

[Technical Field]

[0001] The present invention relates to a retaining member and a wire harness. [Background technology]

[0002] Conventionally, there is a configuration for holding an end of an exterior member for electric wires. Patent Document 1 discloses a sliding door harness including a wiring member that is routed between a sliding door and a vehicle body, and a vehicle body-side fixing part that is provided on the vehicle body and holds one end of the wiring member so that it can rotate as the sliding door slides. The vehicle body-side fixing part has a rotation holding part that rotatably holds one end of the exterior member. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent Publication No. 2021-19386 Summary of the Invention [Problem to be solved by the invention]

[0004] When a holding member that holds the end of the exterior member is made up of a plurality of members, it is desirable to be able to prevent the electric wires from being pinched.

[0005] An object of the present invention is to provide a holding member and a wire harness that can prevent electric wires from being pinched between members. [Means for solving the problem]

[0006] The holding member of the present invention comprises a first member and a second member for holding an end portion of a cylindrical exterior member, the first member and the second member having an engagement structure for engaging with each other along a first direction, and the engagement of the engagement structures forms a holding structure for holding the end portion and an opening through which an electric wire inserted into the exterior member is drawn out to an external space, the holding structure having grooves provided in the first member and the second member, the grooves of the first member and the second member sandwiching and holding the end portion, and the first member and the second member having grooves provided adjacent to the opening. a restricting structure is provided that restricts an electric wire from being caught in a gap between the first member and the second member, the restricting structure having a protrusion on one of the first member and the second member and an opposing wall on the other of the first member and the second member, the protrusion and the opposing wall facing each other in the extension direction of the groove, and the restricting structure is configured such that when the first member and the second member are farthest apart within a range allowed by the play of the engagement structure, the protrusion and the opposing wall overlap when viewed from the extension direction. [Effects of the Invention]

[0007] The restricting structure of the retaining member according to the present invention is configured so that the protrusion and the opposing wall overlap when viewed from the extension direction when the first member and the second member are spaced farthest apart within the range allowed by the play of the engagement structure. The retaining member according to the present invention has the effect of preventing the electric wire from being pinched between the members. [Brief explanation of the drawings]

[0008] [Figure 1] FIG. 1 is a perspective view of a wire harness according to an embodiment. [Figure 2] FIG. 2 is a plan view of the wire harness according to the embodiment. [Figure 3] FIG. 3 is an exploded perspective view of the wire harness according to the embodiment. [Figure 4]FIG. 4 is a perspective view of the holding member and the exterior member according to the embodiment. [Figure 5] FIG. 5 is a front view of the holding member according to the embodiment. [Figure 6] FIG. 6 is a perspective view of an engaging member according to the embodiment. [Figure 7] FIG. 7 is a perspective view of the engaging member according to the embodiment. [Figure 8] FIG. 8 is a cross-sectional view of a holding member according to the embodiment. [Figure 9] FIG. 9 is a cross-sectional view of a holding member according to the embodiment. [Figure 10] FIG. 10 is a perspective view of an engaging member according to a first modified example of the embodiment. [Figure 11] FIG. 11 is a perspective view of an engaging member according to a first modified example of the embodiment. [Figure 12] FIG. 12 is a cross-sectional view of a holding member according to a first modified example of the embodiment. [Figure 13] FIG. 13 is a perspective view of an engaging member according to a second modified example of the embodiment. [Figure 14] FIG. 14 is a cross-sectional view of a holding member according to a second modified example of the embodiment. [Figure 15] FIG. 15 is a perspective view of an engaging member according to a third modified example of the embodiment. [Figure 16] FIG. 16 is a cross-sectional view of a holding member according to a third modified example of the embodiment. [Figure 17] FIG. 17 is a perspective view of an engaging member according to a fourth modified example of the embodiment. [Figure 18] FIG. 18 is a perspective view of an engaging member according to a fourth modified example of the embodiment. [Figure 19] FIG. 19 is a front view of an engaging member according to a fourth modified example of the embodiment. [Figure 20] FIG. 20 is a perspective view of an engaging member according to a fourth modified example of the embodiment. [Figure 21] FIG. 21 is a front view of a holding member according to a fourth modified example of the embodiment. [Figure 22]FIG. 22 is a cross-sectional view of a holding member according to a fourth modified example of the embodiment. [Figure 23] FIG. 23 is a front view of a holding member according to a fourth modified example of the embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0009] Hereinafter, a retaining member and a wire harness according to an embodiment of the present invention will be described in detail with reference to the drawings. Note that the present invention is not limited to the embodiment. 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 9. The embodiment relates to a retaining member and a wire harness. Fig. 1 is a perspective view of the wire harness according to the embodiment, Fig. 2 is a plan view of the wire harness according to the embodiment, Fig. 3 is an exploded perspective view of the wire harness according to the embodiment, Fig. 4 is a perspective view of the retaining member and the exterior member according to the embodiment, Fig. 5 is a front view of the retaining member according to the embodiment, Figs. 6 and 7 are perspective views of the engaging member according to the embodiment, Fig. 8 is a cross-sectional view of the retaining member according to the embodiment, and Fig. 9 is a cross-sectional view of the retaining member according to the embodiment. Fig. 8 shows a cross section taken along line VIII-VIII of Fig. 5.

[0011] As shown in FIGS. 1 to 3 , the wire harness WH of this embodiment includes a holding member 1, an exterior member 2, electric wires 3, and a protector 4. As shown in FIG. 2 , the protector 4 is fixed to a vehicle body 110 of a vehicle 100. The protector 4 has a door-side opening 40 and a vehicle-body-side opening 41. The door-side opening 40 is an opening through which the exterior member 2 is pulled out toward the sliding door 120. As shown in FIG. 2 , the end of the exterior member 2 pulled out from the protector 4 is held by a door-side protector 130. The door-side protector 130 is a protector disposed on the sliding door 120 and moves together with the sliding door 120 in the vehicle fore-and-aft direction FR.

[0012] The door-side opening 40 is shaped so that its cross-sectional area increases from the inside of the protector 4 toward the exit portion so that the exterior member 2 can follow the movement of the sliding door 120. A plurality of electric wires 3 are inserted into the exterior member 2. The electric wires 3 are connected to the device of the sliding door 120 via the door-side protector 130. The vehicle body-side opening 41 is an opening through which the electric wires 3 are drawn out. The electric wires 3 drawn out from the vehicle body-side opening 41 are connected to a control device and a power source mounted on the vehicle body 110.

[0013] As shown in FIG. 3 , the protector 4 has a lower cover 5 and an upper cover 6. The lower cover 5 has a support portion 51 that supports the holding member 1. The support portion 51 rotatably supports the holding member 1 with a pair of arc-shaped ribs. The upper cover 6 has a support portion 61 that corresponds to the support portion 51. The support portion 61 rotatably supports the holding member 1 with a pair of arc-shaped ribs. The lower cover 5 and the upper cover 6 engage with each other to form an accommodation space that accommodates the holding member 1.

[0014] 4 and 5 show a holding member 1 that holds an exterior member 2. For example, the electric wire 3 is inserted into the exterior member 2 held by the holding member 1. Note that the holding member 1 may be attached to the exterior member 2 after the electric wire 3 is inserted into the exterior member 2.

[0015] As shown in Figures 4 and 5, the holding member 1 has a substantially spherical shape. As shown in Figure 4, the holding member 1 holds the distal end portion 2a of the exterior member 2. The holding member 1 has a first member 10A and a second member 10B. The first member 10A and the second member 10B of this embodiment are engaging members 10 of the same shape. That is, the holding member 1 of this embodiment is formed by combining two engaging members 10 of the same shape. The first member 10A and the second member 10B have engaging structures 30 that engage with each other along the first direction X. The illustrated first member 10A and second member 10B are engaged by two sets of engaging structures 30.

[0016] The holding member 1 has an opening 1a through which the electric wire 3 is drawn out. The illustrated opening 1a has a circular shape. The opening 1a is formed by semicircular recesses provided at the ends of the first member 10A and the second member 10B.

[0017] The exterior member 2 is a flexible cylindrical member. The exterior member 2 of this embodiment is a bellows-shaped member called a corrugated tube. The exterior member 2 has annular convex portions and annular grooves that are alternately arranged along the axial direction of the exterior member 2. The exterior member 2 is molded from insulating synthetic resin.

[0018] As shown in Fig. 6, the engaging member 10 has a groove 11 that extends linearly. In this specification, the direction in which the groove 11 extends is referred to as the extension direction Y. The extension direction Y is perpendicular to the first direction X. The direction perpendicular to both the first direction X and the extension direction Y is referred to as the width direction W.

[0019] The groove portion 11 extends from one end to the other end of the engaging member 10 along the extension direction Y. The cross-sectional shape of the groove portion 11 in a cross section perpendicular to the extension direction Y is semicircular. The central axis of the groove portion 11 coincides with the central axis of the holding member 1. The groove portion 11 is provided with a plurality of protrusions 11a that engage the exterior member 2. The protrusions 11a enter annular grooves in the exterior member 2 to engage the exterior member 2. The groove portion 11 has an outlet portion 11b from which the exterior member 2 is pulled out. The outlet portion 11b is the end of the groove portion 11 opposite to the opening 1a side.

[0020] The engaging member 10 has an engaging piece 12 and a locking portion 13. The engaging piece 12 and the locking portion 13 constitute an engaging structure 30 that engages with each other along a first direction X. The engaging piece 12 is disposed on one side of the groove 11 in the width direction W, and the locking portion 13 is disposed on the other side of the groove 11 in the width direction W. That is, the engaging piece 12 and the locking portion 13 face each other in the width direction W with the groove 11 therebetween. The engaging piece 12 is formed in a flat plate shape and protrudes in the first direction X. As shown in FIG. 7 , the engaging piece 12 has a claw portion 12a. The claw portion 12a is disposed at the tip of the engaging piece 12 and protrudes toward the width direction W. The claw portion 12a has an abutment surface 12b that is engaged with the locking portion 13.

[0021] The locking portion 13 protrudes in the width direction W and has a frame shape into which the locking piece 12 is inserted. The locking piece 12 is inserted into the locking portion 13 along the first direction X. The locking portion 13 has a locking surface 13a that locks the claw portion 12a.

[0022] The engaging member 10 has a protrusion 14 and an opposing wall 15. The protrusion 14 and the opposing wall 15 form a restricting structure that restricts the pinching of the electric wire 3. The protrusion 14 and the opposing wall 15 are arranged at the end on the opening 1a side in the extension direction Y. The protrusion 14 and the opposing wall 15 are arranged adjacent to the opening 1a. More specifically, the protrusion 14 is arranged on one side of the opening 1a in the width direction W, and the opposing wall 15 is arranged on the other side of the opening 1a in the width direction W. The positions of the protrusion 14 and the opposing wall 15 are the positions of the mating surfaces when two engaging members 10 are combined. The protrusion 14 and the opposing wall 15 face each other in the width direction W with the central axis of the opening 1a between them.

[0023] The engaging member 10 has an arc-shaped end face 10c that surrounds the opening 1a. The arc-shaped wall having the end face 10c is a partition wall that separates the groove 11 from the external space. This wall faces the end face of the exterior member 2 in the extension direction Y. The protrusion 14 is provided at one end of the end face 10c, and the opposing wall 15 is provided at the other end of the end face 10c.

[0024] The protrusion 14 protrudes toward one side X1 in the first direction X. When viewed from the extension direction Y, the shape of the protrusion 14 is rectangular. The protrusion 14 has a tapered shape in which the width in the extension direction Y narrows toward the one side X1 in the first direction X. The protrusion 14 has an opposing surface 14a. The opposing surface 14a is a surface facing the side opposite to the groove portion 11. In other words, the opposing surface 14a is a surface of the protrusion 14 that faces the external space. The opposing surface 14a is an inclined surface inclined with respect to the first direction X. More specifically, the opposing surface 14a is inclined with respect to the first direction X so as to approach the groove portion 11 as it approaches the tip of the protrusion 14.

[0025] As shown in FIG. 7 , the opposing wall 15 is an end portion of a wall portion having an end surface 10c. The opposing wall 15 has a tapered shape in which the width in the extension direction Y narrows toward one side X1 in the first direction X. The opposing wall 15 has an opposing surface 15a. The opposing surface 15a is a surface facing the groove portion 11. In other words, the opposing surface 15a is a surface of the opposing wall 15 facing the internal space. The opposing surface 15a is an inclined surface inclined with respect to the first direction X. More specifically, the opposing surface 15a is inclined with respect to the first direction X so as to move away from the groove portion 11 toward the one side X1 in the first direction X. The inclination angle of the opposing surface 15a with respect to the first direction X is equal to the inclination angle of the opposing surface 14a with respect to the first direction X.

[0026] 8 shows a cross section of the holding member 1. The end portion 2a of the exterior member 2 is sandwiched and held between the groove portion 11 of the first member 10A and the groove portion 11 of the second member 10B. The end face of the exterior member 2 is located near the protrusion 14 and the opposing wall 15. The electric wire 3 inserted into the exterior member 2 is drawn out from the opening 1a of the holding member 1. The drawn electric wire 3 is routed toward the vehicle body side opening 41 of the protector 4.

[0027] As described below, the holding member 1 of this embodiment has a restricting structure that restricts the electric wire 3 from being caught in the gap between the first member 10A and the second member 10B. The restricting structure of this embodiment is composed of a protruding portion 14 and an opposing wall 15. FIG. 8 shows the first member 10A and the second member 10B engaged with each other to hold the exterior member 2. The protruding portion 14 and the opposing wall 15 face each other in the extending direction Y of the groove portion 11. That is, the engaging member 10 is formed such that the engaging piece 12 and the locking portion 13 engage with each other, causing the protruding portion 14 and the opposing wall 15 to face each other in the extending direction Y. Therefore, when viewed from the extending direction Y, the protruding portion 14 and the opposing wall 15 overlap each other. This configuration restricts the electric wire 3 from being caught in the gap between the first member 10A and the second member 10B.

[0028] As a comparative example, a holding member that does not have the protrusion 14 and the opposing wall 15 and in which the mating surface between the first member and the second member is parallel to the extension direction Y will be considered. In the holding member of the comparative example, the extending direction of the electric wire 3 and the mating surface are parallel, so the electric wire 3 easily enters the gap between the first member and the second member. In contrast, in the holding member 1 of this embodiment, the protrusion 14 and the opposing wall 15 face each other in the extension direction Y. Therefore, the protrusion 14 and the opposing wall 15 can prevent the electric wire 3 from entering the gap.

[0029] 9 is an enlarged view of the protrusion 14 and the opposing wall 15. The protrusion 14 and the opposing wall 15 face each other in the extension direction Y and form a restriction structure 70. In the restriction structure 70 shown in FIG. 9, the opposing surface 15a of the opposing wall 15 faces one side X1 in the first direction X, and the opposing surface 14a of the protrusion 14 faces the other side X2 in the first direction X.

[0030] FIG. 9 shows the overlap width L between the protrusion 14 and the opposing wall 15. The overlap width L is the distance in the first direction X from the tip of the opposing wall 15 to the tip of the protrusion 14. In other words, the overlap width L is the length in the first direction X of the portion where the protrusion 14 and the opposing wall 15 overlap when viewed from the extension direction Y. The overlap width L varies depending on the relative positions of the first member 10A and the second member 10B. The engagement structure 30, which is composed of the engagement piece 12 and the locking portion 13, has play. This play allows the first member 10A and the second member 10B to move relatively in the first direction X.

[0031] 9 shows the state in which the first member 10A and the second member 10B are furthest apart in the first direction X. In this case, a small gap is generated between the two opposing surfaces 14a, 15a. The holding member 1 of this embodiment is configured so that, when the first member 10A and the second member 10B are furthest apart, the protrusion 14 and the opposing wall 15 overlap when viewed from the extension direction Y. In other words, the holding member 1 of this embodiment is configured so that, when the first member 10A and the second member 10B are furthest apart, the value of the overlap width L is greater than 0. Specific examples of this configuration are, for example, as follows.

[0032] The value of the overlap width L when the first member 10A and the second member 10B are closest to each other is defined as a maximum value Lmax. The maximum value Lmax is determined so that the following formula (1) holds. In formula (1), the play dimension Xt is the magnitude of the play in the first direction X in the engagement structure 30 composed of the engagement piece 12 and the locking portion 13. As a result, the overlap width L becomes a positive value even when the first member 10A and the second member 10B are furthest apart. Therefore, the restriction structure 70 of this embodiment can restrict the electric wire 3 from being caught. Lmax>Xt (1)

[0033] The minimum value Lmin, which is the value of the overlap width L when the first member 10A and the second member 10B are furthest apart, may be determined according to the outer diameter of the electric wire 3. For example, the minimum value Lmin may be equal to or greater than the outer diameter of the electric wire 3. When a plurality of electric wires 3 with different thicknesses are inserted into the exterior member 2, the minimum value Lmin may be determined according to the smallest diameter of the electric wires 3.

[0034] The restricting structure 70 of this embodiment can restrict the wire 3 from being caught mainly in the following two situations.

[0035] As a first example, a case will be described in which the electric wire 3 is inserted through the outer casing 2 and the holding member 1 while the holding member 1 holds the outer casing 2. In this case, even if the electric wire 3 attempts to enter the gap between the first member 10A and the second member 10B at the opening 1a, the protrusion 14 and the opposing wall 15 block the entry of the electric wire 3. In other words, the protrusion 14 and the opposing wall 15 form a guard wall for the electric wire 3 so that the electric wire 3 does not extend radially outward from the opening 1a. In the holding member 1 of this embodiment, the distance between the two opposing surfaces 14a, 15a is set so that the electric wire 3 does not easily enter between the opposing surfaces 14a, 15a. For example, the maximum value of the distance between the two opposing surfaces 14a, 15a is smaller than the outer diameter of the electric wire 3.

[0036] As a second scenario, a case will be described in which the holding member 1 is attached to the exterior member 2 after the electric wire 3 has been inserted into the exterior member 2. When a worker attempts to engage the first member 10A with the second member 10B while the electric wire 3 remains pinched between the protrusion 14 and the opposing wall 15, the protrusion 14 and the opposing wall 15 attempt to bend the electric wire 3. In this case, a reaction force due to the rigidity of the electric wire 3 acts on the protrusion 14 and the opposing wall 15. Since a larger engagement force than usual is required, the worker can easily notice that the electric wire 3 has been caught.

[0037] Furthermore, in the holding member 1 of this embodiment, if the electric wire 3 gets into the gap between the first member 10A and the second member 10B, the engaging piece 12 and the locking portion 13 cannot be engaged with each other. As a means for disabling the engagement structure 30, for example, the distance between the two opposing surfaces 14a, 15a is set. In this case, the protrusion 14 and the opposing wall 15 are configured so that the engaging piece 12 cannot be inserted into the locking portion 13 up to the engagement position while the electric wire 3 remains sandwiched between the two opposing surfaces 14a, 15a.

[0038] As described above, the holding member 1 of the present embodiment can prevent the electric wire 3 from entering the gap between the first member 10A and the second member 10B when the electric wire 3 is inserted through the exterior member 2 and the opening 1a of the holding member 1. Furthermore, when the electric wire 3 has been inserted into the exterior member 2 in advance, the holding member 1 prevents the first member 10A and the second member 10B from engaging with each other while the electric wire 3 is sandwiched between them. Therefore, the holding member 1 of the present embodiment can prevent the electric wire 3 from entering the gap between the first member 10A and the second member 10B in either of the two assembly processes.

[0039] Furthermore, in the holding member 1 of this embodiment, the two opposing surfaces 14a, 15a face each other in the extension direction Y. The two opposing surfaces 14a, 15a are inclined surfaces that are inclined with respect to both the first direction X and the extension direction Y. Because the opposing surfaces 14a, 15a are inclined with respect to the first direction X, a large gap is unlikely to occur between the opposing surfaces 14a, 15a even when the first member 10A and the second member 10B move relatively in the first direction X. Therefore, the protrusion 14 and the opposing wall 15 can appropriately prevent the electric wire 3 from entering the gap between the first member 10A and the second member 10B.

[0040] As described above, the holding member 1 of this embodiment has a first member 10A and a second member 10B that hold the end portion 2a of the cylindrical exterior member 2. The first member 10A and the second member 10B have engagement structures 30 that engage with each other along the first direction X, and the engagement of the engagement structures 30 forms the holding structure and the opening 1a. The holding structure is a structure that holds the end portion 2a of the exterior member 2. The opening 1a is a portion through which the electric wire 3 inserted into the exterior member 2 is drawn from the holding member 1 to the external space.

[0041] The holding structure has grooves 11 provided in the first member 10A and the second member 10B, and holds the end portion 2a by sandwiching it between the grooves 11 of the first member 10A and the grooves 11 of the second member 10B. The first member 10A and the second member 10B are provided with restricting structures 70 arranged adjacent to the openings 1a. The restricting structures 70 restrict the electric wire 3 from being sandwiched in the gap between the first member 10A and the second member 10B.

[0042] The restricting structure 70 has a protrusion 14 on one of the first member 10A and the second member 10B, and an opposing wall 15 on the other of the first member 10A and the second member 10B. The protrusion 14 and the opposing wall 15 face each other in the extension direction Y of the groove portion 11. The restricting structure 70 is configured so that the protrusion 14 and the opposing wall 15 overlap when viewed from the extension direction Y when the first member 10A and the second member 10B are farthest apart within the range allowed by the backlash of the engagement structure 30. Therefore, the holding member 1 of this embodiment can prevent the electric wire 3 from getting between the first member 10A and the second member 10B.

[0043] The wire harness WH of this embodiment includes a cylindrical exterior member 2, electric wires 3 inserted into the exterior member 2, the holding member 1, and a protector 4 that rotatably supports the holding member 1. The wire harness WH of this embodiment can prevent problems caused by the electric wires 3 being pinched in the holding member 1. For example, the restriction structure 70 can prevent the electric wires 3 from being pinched when the holding member 1 rotates.

[0044] [First Modification of the Embodiment] A first modified example of the embodiment will be described. Figures 10 and 11 are perspective views of an engaging member according to the first modified example of the embodiment, and Figure 12 is a cross-sectional view of a holding member according to the first modified example of the embodiment. The holding member 1 according to the first modified example of the embodiment differs from the holding member 1 of the above embodiment in, for example, the shapes of the protrusions and the opposing walls.

[0045] 10 and 11, the engaging member 10 according to the first modified embodiment has the same groove portion 11, engaging piece 12, and locking portion 13 as the engaging member 10 according to the above embodiment. The engaging member 10 according to the first modified embodiment has a protruding portion 16 and an opposing wall 17. The protruding portion 16 is provided in the same position as the protruding portion 14 according to the above embodiment, and the opposing wall 17 is provided in the same position as the opposing wall 15 according to the above embodiment. Therefore, the protruding portion 16 and the opposing wall 17 are disposed adjacent to the opening 1a and face each other across the central axis of the opening 1a.

[0046] As shown in FIG. 10 , the protrusion 16 protrudes toward one side X1 in the first direction X. The shape of the protrusion 16 when viewed from the extension direction Y is rectangular. The shape of the protrusion 16 is a substantially flat plate. The opposing wall 17 is formed by providing a recess corresponding to the protrusion 16 in a wall portion having the end face 10c. The opposing wall 17 has an opposing surface 17a. The opposing surface 17a faces the side opposite to the groove portion 11. The opposing surface 17a is parallel to the first direction X and perpendicular to the extension direction Y.

[0047] 11, the protrusion 16 has an opposing surface 16a. The opposing surface 16a faces the groove 11. The opposing surface 16a is parallel to the first direction X and perpendicular to the extending direction Y.

[0048] Fig. 12 shows a cross section of a holding member 1 according to a first modified example. The exterior member 2 is not shown. In the holding member 1 of Fig. 12, the first member 10A and the second member 10B are spaced farthest apart within the range allowed by the play of the engagement structure 30. The protrusion 16 and the opposing wall 17 face each other in the extension direction Y. More specifically, the opposing surface 16a of the protrusion 16 faces the opposing surface 17a of the opposing wall 17. The distance between the two opposing surfaces 16a, 17a is determined so as to prevent the electric wire 3 from entering.

[0049] In the holding member 1 of the first modified example, the two opposing surfaces 16a, 17a are surfaces parallel to the first direction X. In this case, even if the first member 10A and the second member 10B move relatively in the first direction X, the distance between the two opposing surfaces 16a, 17a does not increase. Therefore, the protrusion 16 and the opposing wall 17 of the first modified example can appropriately prevent the electric wire 3 from entering the gap between the first member 10A and the second member 10B.

[0050] [Second Modification of the Embodiment] A second modified example of the embodiment will be described. Fig. 13 is a perspective view of an engaging member according to the second modified example of the embodiment, and Fig. 14 is a cross-sectional view of a holding member according to the second modified example of the embodiment. The holding member 1 according to the second modified example of the embodiment differs from the holding member 1 of the above embodiment in, for example, the shapes of the protrusion and the opposing wall.

[0051] As shown in Fig. 13, the engaging member 10 according to the second modified embodiment has the same groove portion 11, engaging piece 12, and locking portion 13 as the engaging member 10 of the above embodiment. The engaging member 10 according to the second modified embodiment has a protrusion 18 and an opposing wall 19. The protrusion 18 is provided in the same position as the protrusion 14 of the above embodiment, and the opposing wall 19 is provided in the same position as the opposing wall 15 of the above embodiment. In other words, the protrusion 18 and the opposing wall 19 are disposed adjacent to the opening 1a and face each other across the central axis of the opening 1a.

[0052] As shown in FIG. 13 , the protrusion 18 protrudes toward one side X1 in the first direction X. When viewed from the extension direction Y, the shape of the protrusion 18 is rectangular. The protrusion 18 protrudes in the extension direction Y relative to the end face 10c. In other words, the protrusion 18 is shifted toward the side opposite to the groove portion 11 relative to the end face 10c. The protrusion 18 has an opposing surface 18a. The opposing surface 18a faces the groove portion 11. The opposing surface 18a is parallel to the first direction X and perpendicular to the extension direction Y.

[0053] The opposing wall 19 of the second modified example is part of an arc-shaped partition wall having an end face 10c. That is, the opposing surface 19a of the opposing wall 19 is part of the end face 10c. The opposing surface 19a faces away from the groove portion 11.

[0054] Fig. 14 shows a cross section of a holding member 1 according to a second modified example. The exterior member 2 is not shown. In the holding member 1 of Fig. 14, the first member 10A and the second member 10B are spaced farthest apart within the range allowed by the play of the engagement structure 30. The protrusion 18 and the opposing wall 19 face each other in the extension direction Y. More specifically, the opposing surface 18a of the protrusion 18 faces the opposing surface 19a of the opposing wall 19. The distance between the two opposing surfaces 18a, 19a is determined so as to prevent the electric wire 3 from entering.

[0055] In the holding member 1 of the second modified example, the two opposing surfaces 18a, 19a are surfaces parallel to the first direction X. Therefore, the protrusion 18 and the opposing wall 19 of the second modified example can appropriately prevent the electric wire 3 from entering the gap between the first member 10A and the second member 10B.

[0056] [Third Modification of the Embodiment] A third modified example of the embodiment will now be described. Fig. 15 is a perspective view of an engaging member according to the third modified example of the embodiment, and Fig. 16 is a cross-sectional view of a holding member according to the third modified example of the embodiment. The holding member 1 according to the third modified example of the embodiment differs from the holding member 1 of the above embodiment in, for example, the shapes of the protrusion and the opposing wall.

[0057] 15, an engaging member 10 according to a third modified embodiment has a groove 11, an engaging piece 12, and a locking portion 13 similar to those of the engaging member 10 of the above embodiment. The engaging member 10 according to the third modified embodiment has a protruding portion 20 and an opposing wall 21. The protruding portion 20 is provided in a position similar to that of the opposing wall 15 of the above embodiment, and the opposing wall 21 is provided in a position similar to that of the protruding portion 14 of the above embodiment. In other words, the protruding portion 20 and the opposing wall 21 are disposed adjacent to the opening 1a and face each other across the central axis of the opening 1a.

[0058] As shown in FIG. 15 , the protrusion 20 protrudes toward one side X1 in the first direction X. The shape of the protrusion 20 when viewed from the extension direction Y is rectangular or trapezoidal. The protrusion 20 has a tapered shape in which the width in the extension direction Y narrows toward the one side X1 in the first direction X. The protrusion 20 has two opposing surfaces 20a, 20b. The first opposing surface 20a faces away from the groove 11, and the second opposing surface 20b faces the groove 11. The first opposing surface 20a is inclined with respect to the first direction X so as to approach the groove 11 toward the one side X1 in the first direction X. The second opposing surface 20b is inclined with respect to the first direction X so as to move away from the groove 11 toward the one side X1 in the first direction X.

[0059] The opposing wall 21 has a first opposing wall 21a and a second opposing wall 21b. The first opposing wall 21a faces the first opposing surface 20a. The second opposing wall 21b faces the second opposing surface 20b. The two opposing walls 21a, 21b are arranged side by side in the extension direction Y. The first opposing wall 21a and the second opposing wall 21b form recesses corresponding to the protrusions 20.

[0060] FIG. 16 shows a cross section of a holding member 1 according to a third modified example. The exterior member 2 is not shown. In the holding member 1 of FIG. 16, the first member 10A and the second member 10B are spaced farthest apart within the range allowed by the play of the engagement structure 30. The protrusion 20 and the opposing wall 21 face each other in the extension direction Y. More specifically, the first opposing surface 20a of the protrusion 20 faces the opposing surface of the first opposing wall 21a. The distance between the first opposing surface 20a and the first opposing wall 21a is determined so as to prevent the electric wire 3 from entering. The second opposing surface 20b of the protrusion 20 faces the opposing surface of the second opposing wall 21b. The distance between the second opposing surface 20b and the second opposing wall 21b is determined so as to prevent the electric wire 3 from entering.

[0061] In the holding member 1 of the third modified example, the restricting structure 70 constituted by the protrusion 20 and the opposing wall 21 has two opposing walls 21a, 21b that are aligned in the extension direction Y with the protrusion 20 therebetween. In other words, the electric wire 3 cannot easily enter between the protrusion 20 and the opposing wall 21 from either side in the extension direction Y. Therefore, the protrusion 20 and the opposing wall 21 according to the third modified example can appropriately prevent the electric wire 3 from entering the gap between the first member 10A and the second member 10B.

[0062] [Fourth Modification of the Embodiment] A fourth modified embodiment will be described. Figures 17 and 18 are perspective views of an engaging member according to the fourth modified embodiment, Figure 19 is a front view of the engaging member according to the fourth modified embodiment, Figure 20 is a perspective view of the engaging member according to the fourth modified embodiment, Figure 21 is a front view of a holding member according to the fourth modified embodiment, Figure 22 is a cross-sectional view of the holding member according to the fourth modified embodiment, and Figure 23 is a front view of the holding member according to the fourth modified embodiment. The holding member 1 according to the fourth modified embodiment differs from the holding member 1 of the above embodiment in that, for example, the protrusion 22 is housed in the wall 10d so as not to protrude.

[0063] As shown in Figures 17 to 19, an engaging member 10 according to a fourth modified embodiment has a groove portion 11, an engaging piece 12, and a locking portion 13 similar to those of the engaging member 10 of the above embodiment. The engaging member 10 according to the fourth modified embodiment has a protrusion 22 and an opposing wall 23. The engaging member 10 has an arc-shaped wall portion 10d similar to the engaging member 10 of the above embodiment. The wall portion 10d is disposed at the end on the opening 1a side in the extension direction Y. The wall portion 10d has an arc-shaped end surface 10c that surrounds the opening 1a.

[0064] The protrusion 22 protrudes in the first direction X from a first circumferential end 10e of the wall 10d. The first end 10e is one end of the wall 10d. The opposing wall 23 is a second circumferential end 10f of the wall 10d. The second end 10f is the other end of the wall 10d. As shown in FIG. 19 , the protrusion 22 and the opposing wall 23 are disposed adjacent to the opening 1a and face each other across the central axis 1x of the opening 1a.

[0065] The protrusion 22 protrudes from the first end 10e toward one side X1 in the first direction X. The protrusion 22 is formed in a plate shape. When viewed from the extending direction Y, the shape of the protrusion 22 is approximately trapezoidal. The protrusion 22 has a tapered shape in which the length in the width direction W becomes narrower toward the one side X1 in the first direction X. The thickness of the protrusion 22 is smaller than the thickness of the wall 10d. In other words, the protrusion 22 is a thin piece compared to the wall 10d. The position of the protrusion 22 in the extending direction Y is a position on the end face 10c side of the wall 10d. In other words, the protrusion 22 protrudes from a position on the wall 10d facing the external space.

[0066] The opposing wall 23 is disposed at the second end 10f of the wall portion 10d. The illustrated opposing wall 23 is formed by recessing the second end 10f. As shown in FIG. 17, the second end 10f has a recess 230 recessed in the extension direction Y. The recess 230 is formed so as to accommodate the protrusion 22. The opposing wall 23 is a bottom wall portion of the recess 230. In other words, the wall portion 10d is recessed at the portion of the opposing wall 23 toward the groove portion 11 with respect to the end face 10c. The thickness of the opposing wall 23 is smaller than the thickness of other portions of the wall portion 10d. In other words, the opposing wall 23 is a portion that is thinner than the portion of the wall portion 10d adjacent to the opposing wall 23.

[0067] The opposing wall 23 has an opposing surface 23a. The opposing surface 23a is the bottom surface of the recess 230. The opposing surface 23a faces the side opposite to the groove portion 11. The opposing surface 23a is parallel to the first direction X and perpendicular to the extension direction Y.

[0068] 18, the protrusion 22 has an opposing surface 22a. The opposing surface 22a faces the groove 11. The opposing surface 22a is parallel to the first direction X and perpendicular to the extending direction Y.

[0069] 19, the opposing wall 23 has an arc-shaped edge 23b that forms the opening 1a. The edge 23b is one side of the opposing wall 23 and faces the central axis 1x of the opening 1a. The shape of the edge 23b is an arc shape centered on the central axis 1x.

[0070] The protrusion 22 has an edge 22b facing the central axis 1x. The edge 22b extends in the first direction X. The illustrated edge 22b is linear and extends along a tangent to the opening 1a. In other words, the edge 22b extends in a tangent direction to the inner circumference of the wall 10d. The edge 22b is located radially outward from the opening 1a.

[0071] As shown in FIG. 20 , the protrusion 22 has a main body 220 and a raised portion 221. The main body 220 is a portion that is continuous with the wall portion 10d and has an end face 220a. The end face 220a is a surface that is perpendicular to the extension direction Y and faces the external space of the engaging member 10. In other words, the end face 220a faces the side opposite the groove portion 11. The end face 220a is a surface that is continuous with the end face 10c of the wall portion 10d. The end face 220a is connected to the edge portion 22b. In other words, the end face 220a is a portion that is adjacent to the opening 1a. In this way, the protrusion 22 of this modified example is formed so that the portion that is adjacent to the opening 1a does not protrude in the extension direction Y with respect to the end face 10c.

[0072] The raised portion 221 rises from the main body 220 in the extension direction Y. The raised portion 221 rises from the end face 220a toward the external space of the engaging member 10. The raised portion 221 is located radially outward of the end face 220a.

[0073] FIG. 21 shows a front view of the engaged first member 10A and second member 10B. FIG. 22 shows a cross section taken along line XXII-XXII of FIG. 21. In the retaining member 1 of FIG. 22, the first member 10A and the second member 10B are spaced farthest apart within the range permitted by the play of the engagement structure 30. The protrusion 22 and the opposing wall 23 face each other in the extension direction Y. More specifically, the protrusion 22 is located on the external space 1b side of the opposing wall 23. The opposing surface 22a of the protrusion 22 faces the opposing surface 23a of the opposing wall 23. The distance between the two opposing surfaces 22a, 23a is determined so as to prevent the electric wire 3 from entering.

[0074] As shown in FIG. 22 , the protrusion 22 of the second member 10B is accommodated in the recess 230 of the first member 10A. The recess 230 has a depth that allows the protrusion 22 to be accommodated therein. By accommodating the protrusion 22 in the recess 230, the protrusion 22 is less likely to protrude from the end face 10c. In other words, a step is less likely to occur between the end face 10c of the first member 10A and the protrusion 22 of the second member 10B, and even if a step does occur, it is a small step. Therefore, the holding member 1 of the fourth modified example can prevent the electric wire 3 from entering the gap Gp between the protrusion 22 and the opposing wall 23.

[0075] If a pulling force is applied to the electric wires 3 after the wire harness WH is fixed, and if there is a large step between the protrusion 22 and the end face 10c, the electric wires 3 may get caught on the protrusion 22 and enter the gap Gp. In the holding member 1 of the fourth modified example, the protrusion 22 is housed in the recess 230, thereby preventing the electric wires 3 from entering the gap Gp.

[0076] The protrusion 22 of the first member 10A and the recess 230 of the second member 10B are configured in the same manner. That is, the protrusion 22 of the first member 10A is housed in the recess 230 of the second member 10B. This prevents the wire 3 from entering the gap Gp between the protrusion 22 of the first member 10A and the recess 230 of the second member 10B.

[0077] In the illustrated holding member 1, when the first member 10A and the second member 10B are engaged with each other, the end face 10c of the first member 10A and the end face 220a of the second member 10B are positioned on the same plane. This more reliably prevents the wire 3 from entering the gap Gp between the protrusion 22 and the opposing wall 23. The same applies to the relationship between the end face 10c of the second member 10B and the end face 220a of the first member 10A. That is, the end face 10c of the second member 10B and the end face 220a of the first member 10A are positioned on the same plane.

[0078] 23, in the radial direction of the opening 1a, the protrusion 22 is located outward from the edge 23b of the opposing wall 23. More specifically, the edge 22b of the protrusion 22 is located outward from the edge 23b of the opposing wall 23 in the radial direction. Therefore, the electric wire 3 is less likely to get caught on the corner 22c of the protrusion 22. This prevents the electric wire 3 from entering the gap Gp between the protrusion 22 and the opposing wall 23.

[0079] As described above, the first member 10A and the second member 10B of this modified example have an arc-shaped wall portion 10d that surrounds the opening 1a. The protrusion 22 is located on the external space 1b side of the opposing wall 23 in the extension direction Y. The protrusion 22 protrudes in the first direction X from a first circumferential end portion 10e of the wall portion 10d. The opposing wall 23 is a second circumferential end portion 10f of the wall portion 10d. The second end portion 10f of the wall portion 10d has a recess 230 recessed in the extension direction Y, and the protrusion 22 is accommodated in the recess 230. This configuration makes it difficult for the protrusion 22 to protrude from the wall portion 10d. Therefore, the holding member 1 of this modified example can prevent the electric wire 3 from entering the gap Gp between the protrusion 22 and the opposing wall 23.

[0080] The shape of the opening 1a when viewed from the extension direction Y is circular. The opposing wall 23 has an arc-shaped edge 23b that forms the opening 1a. The protrusion 22 is located outside the edge 23b in the radial direction of the opening 1a. Therefore, the holding member 1 of this modified example can prevent the electric wire 3 from entering the gap Gp between the protrusion 22 and the opposing wall 23.

[0081] The contents disclosed in the above-described embodiments and modifications can be implemented in appropriate combinations. [Explanation of symbols]

[0082] 1: holding member, 1a: opening, 1b: outer space, 1x: central axis 2: exterior member, 2a: end portion, 3: electric wire, 4: protector 5: Lower cover, 6: Upper cover 10: Engagement member, 10A: First member, 10B: Second member 10c: End face, 10d: Wall part, 10e: First end part, 10f: Second end part 11:Groove, 11a:Protrusion, 11b:Exit 12: Engagement piece, 12a: Claw portion, 12b: Contact surface 13: locking portion, 13a: locking surface 14: protrusion, 14a: opposing surface 15: Opposing wall, 15a: Opposing surface 16: Projection, 16a: Opposing surface 17: opposing wall, 17a: opposing surface 18: Projection, 18a: Opposing surface 19: opposing wall, 19a: opposing surface 20: Projection, 20a, 20b: Opposing surface 21: Opposing wall, 21a: First opposing wall, 21b: Second opposing wall 22: Projection, 22a: Opposing surface, 22b: Edge 23: Opposing wall, 23a: Opposing surface, 23b: Edge 30: Engagement structure 40: Door side opening, 41: Car body side opening 51,61:Support part 70: Regulatory Structure 100: vehicle, 110: body, 120: sliding door 130: Door side protector 230: Recess WH: Wire harness X: First direction, Y: Extending direction, W: Width direction

Claims

1. a first member and a second member for holding an end portion of a cylindrical outer casing member; the first member and the second member have engagement structures that engage with each other along a first direction, and the engagement structures form a holding structure that holds the end portion and an opening through which an electric wire inserted into the exterior member is drawn out to an external space, The holding structure has grooves provided in the first member and the second member, and holds the distal end portion by sandwiching it between the grooves of the first member and the grooves of the second member; the first member and the second member are provided with a restricting structure that is disposed adjacent to the opening and restricts an electric wire from being caught in a gap between the first member and the second member; the restriction structure includes a protrusion provided on one of the first member and the second member and an opposing wall provided on the other of the first member and the second member, the protrusion and the opposing wall face each other in an extending direction of the groove, The restricting structure is configured such that, when viewed from the extending direction, the protruding portion and the opposing wall overlap with each other in a state in which the first member and the second member are spaced farthest from each other within a range allowed by play of the engaging structure. A holding member characterized by:

2. The restriction structure has two opposing walls arranged in the extension direction with the protrusion therebetween. The retaining member according to claim 1 .

3. the protrusion and the opposing wall each have opposing surfaces that are perpendicular to the extending direction, When the first member and the second member are spaced farthest from each other within a range allowed by play of the engagement structure, the opposing surface of the protruding portion and the opposing surface of the opposing wall face each other. The retaining member according to claim 1 .

4. the first member and the second member have arc-shaped walls surrounding the opening, the protruding portion is located on the external space side of the opposing wall in the extension direction, the protruding portion protrudes in the first direction from a first end portion of the wall portion in a circumferential direction, the opposing wall is a second end portion of the wall portion in the circumferential direction, The second end of the wall portion has a recess recessed in the extending direction, and the protrusion is accommodated in the recess. The retaining member according to claim 1 .

5. The shape of the opening when viewed from the extension direction is circular, the opposing wall has an arc-shaped edge portion that forms the opening, The protrusion is positioned outward from the edge in the radial direction of the opening. The retaining member according to claim 1 .

6. A cylindrical exterior member; an electric wire inserted into the exterior member; a holding member for holding an end portion of the exterior member; a protector that rotatably supports the holding member; Equipped with the retaining member has a first member and a second member that retain the distal end; the first member and the second member have engagement structures that engage with each other along a first direction, and the engagement structures form a holding structure that holds the end portion and an opening through which the electric wire is drawn out to an external space, The holding structure has grooves provided in the first member and the second member, and holds the distal end portion by sandwiching it between the grooves of the first member and the grooves of the second member; the first member and the second member are provided with a restricting structure that is disposed adjacent to the opening and restricts an electric wire from being caught in a gap between the first member and the second member; the restriction structure includes a protrusion provided on one of the first member and the second member and an opposing wall provided on the other of the first member and the second member, the protruding portion and the opposing wall are opposed to each other in an extending direction of the groove portion, The restricting structure is configured such that, when viewed from the extending direction, the protruding portion and the opposing wall overlap with each other in a state in which the first member and the second member are spaced farthest from each other within a range allowed by play of the engaging structure. A wire harness characterized by:

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