Retaining member and wire harness

Abstract

The objective is to provide a retaining member and wire harness that can properly prevent wires from being pinched. [Solution] The retaining member 1 comprises a first member 10 and a second member 20, a locking portion 30 and an engaging portion 40. The engaging portion 40 is configured to include a first protrusion 41 and a second protrusion 42 that engages with the first protrusion 41. The first protrusion 41 is configured to include a plurality of first protrusions 41a and a plurality of first recesses 41b that are alternately arranged along the axial direction X, and is provided between the first axial end face 10a of the first member 10 facing the external space and the end 2a of the exterior member 2. The second protrusion 42 is configured to include a plurality of second protrusions 42a and a plurality of second recesses 42b that are alternately arranged along the axial direction X, and is provided between the second axial end face 20a of the second member 20 facing the external space and the end 2a of the exterior member 2.

Description

Technical Field

[0001] The present invention relates to a holding member and a wire harness.

Background Art

[0002] As a technology related to a holding member of a conventional wire harness, for example, Patent Document 1 discloses a holding member including a first member and a second member that hold an end portion of a cylindrical exterior member. The first member and the second member form a holding structure and an opening through which an electric wire is drawn out to an external space by an engaging structure that engages along an assembling direction. Further, the first member and the second member are provided with a regulating structure that regulates the electric wire from being sandwiched in a gap between the first member and the second member.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] By the way, in the above-described conventional holding member, for example, the regulating structure includes a protruding portion of one of the first member and the second member and an opposing wall of the other, but there is room for further improvement in appropriately suppressing the sandwiching of the electric wire.

[0005] The present invention has been made in view of the above circumstances, and an object thereof is to provide a holding member and a wire harness capable of appropriately suppressing the sandwiching of an electric wire.

Means for Solving the Problems

[0006] To achieve the above objective, the holding member according to the present invention comprises a first member and a second member that hold the end of an outer casing member through which an electric wire is inserted along the axial direction and are assembled to each other along an assembly direction intersecting the axial direction, a locking portion that locks the first member and the second member along the assembly direction, and an engaging portion provided on the mating surface of the first member and the second member at an opening through which the electric wire is pulled out from the end of the outer casing member to the outside space, wherein the engaging portion is provided on the first end face on the first member side that constitutes the mating surface The first uneven portion comprises a set of protrusions and a set of protrusions provided on the second end face of the second member that constitutes the mating surface and engaging with the first uneven portion, wherein the first uneven portion comprises a plurality of first protrusions and a plurality of first recesses arranged alternately along the axial direction and is provided between the first axial end face of the first member facing the external space and the end of the exterior member, and the second uneven portion comprises a plurality of second protrusions and a plurality of second recesses arranged alternately along the axial direction and is provided between the second axial end face of the second member facing the external space and the end of the exterior member. [Effects of the Invention]

[0007] In the retaining member and wire harness according to the present invention, the first uneven portion is composed of a plurality of first protrusions and a plurality of first recesses arranged alternately along the axial direction, and is provided across the first axial end face of the first member and the end of the outer casing member, and the second uneven portion is composed of a plurality of second protrusions and a plurality of second recesses arranged alternately along the axial direction, and is provided across the second axial end face of the second member and the end of the outer casing member. With this configuration, the retaining member and wire harness can suppress pinching of electric wires over the range from the end of the outer casing member to the first axial end face and the second axial end face, for example, even when the end of the outer casing member and the first and second axial end faces are relatively far apart, by the engagement of the plurality of first protrusions and a plurality of first recesses and the plurality of second protrusions and a plurality of second recesses. As a result, the retaining member and wire harness have the effect of properly suppressing pinching of electric wires. [Brief explanation of the drawing]

[0008] [Figure 1] Figure 1 is an illustrative perspective view of a wire harness to which the holding member according to the embodiment is applied. [Figure 2] Figure 2 is an illustrative plan view of a wire harness to which the holding member according to the embodiment is applied. [Figure 3] Figure 3 is an illustrative exploded perspective view of a wire harness to which the holding member according to the embodiment is applied. [Figure 4] Figure 4 is an illustrative perspective view of a retaining member according to an embodiment. [Figure 5] Figure 5 is an exemplary exploded perspective view of the retaining member according to the embodiment. [Figure 6] Figure 6 is an illustrative front view of a holding member according to an embodiment. [Figure 7] Figure 7 is an exemplary cross-sectional view of the locking portion of the retaining member according to the embodiment. [Figure 8] Figure 8 is an illustrative cross-sectional view of a retaining member according to an embodiment, showing the first and second protrusions engaged with each other. [Figure 9] Figure 9 is an exemplary cross-sectional view of a retaining member according to an embodiment, showing the first and second protrusions separated from each other. [Modes for carrying out the invention]

[0009] Embodiments of the present invention will be described in detail below with reference to the drawings. However, the present invention is not limited to the embodiments described below. Furthermore, the components in the embodiments described below include those that are easily substituted or substantially identical to those that are easily substituted by those skilled in the art. In this specification, ordinal numbers are used solely to distinguish parts, components, locations, directions, etc., and do not indicate order or priority.

[0010] [Embodiment] Figure 1 is a perspective view of a wire harness WH to which the retaining member 1 according to this embodiment is applied, Figure 2 is a plan view of the wire harness WH, and Figure 3 is an exploded perspective view of the wire harness WH. The retaining member 1 of this embodiment shown in Figures 1 to 3 is incorporated into a wire harness WH routed in a vehicle such as an automobile. Here, the wire harness WH is, for example, a bundle of multiple electric wires 3 used for power supply and signal communication to connect various devices mounted on a vehicle, and the electric wires 3 are connected to each device with connectors or the like. The wire harness WH of this embodiment includes, for example, a retaining member 1, an outer casing member 2, electric wires 3, and a protector 4. In addition, the wire harness WH may also include various other components such as grommets and fasteners.

[0011] As shown in Figure 2, the protector 4 is fixed to, for example, the vehicle body 110 of the vehicle 100. The protector 4 comprises a door-side opening 140 and a vehicle body-side opening 141. The door-side opening 140 is an opening from which the exterior member 2 is pulled out toward the sliding door 120. In this embodiment, one end of the exterior member 2 pulled out from the protector 4 is held by the door-side protector 130. The door-side protector 130 is a protector positioned on the sliding door 120 and moves along the vehicle's longitudinal direction FR with the sliding door 120.

[0012] The shape of the door-side opening 140 is such that the cross-sectional area increases from the inside of the protector 4 towards the exit, allowing the exterior member 2 to follow the movement of the sliding door 120. Multiple electric wires 3 are inserted through 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 141 is an opening through which the electric wires 3 are pulled out. The electric wires 3 pulled out from the vehicle body-side opening 141 are connected to control devices, power supplies, etc. mounted on the vehicle body 110.

[0013] As shown in Figure 3, the protector 4 is comprised of, for example, a lower cover 5 and an upper cover 6. The lower cover 5 has a support portion 51 that supports the retaining member 1. The support portion 51 rotatably supports the retaining member 1 by 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 retaining member 1 by a pair of arc-shaped ribs. The lower cover 5 and the upper cover 6 engage with each other to form a housing space that accommodates the retaining member 1. The electric wire 3 is inserted, for example, through the outer casing member 2 held by the retaining member 1. The retaining member 1 may be attached to the outer casing member 2 after the electric wire 3 has been inserted through the outer casing member 2.

[0014] Figure 4 is a perspective view of the retaining member 1. As shown in Figure 4, the retaining member 1 is, for example, substantially spherical in shape and holds the end 2a of the outer casing member 2 as the other end. The retaining member 1 is composed of, for example, a first member 10, a second member 20, a locking portion 30, and an engaging portion 40. In this embodiment, the first member 10 and the second member 20 are engaging members of the same shape. That is, the retaining member 1 of this embodiment is composed of two engaging members of the same shape combined together. The retaining member 1 is provided with an opening 1a through which the electric wire 3 is pulled out. The opening 1a is, for example, circular in shape. The opening 1a is formed by combining semicircular recesses provided at the end of the first member 10 and the end of the second member 20.

[0015] In the following description, among the first direction, the second direction, and the third direction that intersect each other, the first direction is referred to as the "axial direction X", the second direction is referred to as the "width direction Y", and the third direction is referred to as the "assembly direction Z". Here, the axial direction X, the width direction Y, and the assembly direction Z are substantially orthogonal to each other. The axial direction X typically corresponds to the front-rear direction of the holding member 1, the extending direction of the exterior member 2 and the electric wire 3, the insertion direction of the exterior member 2 and the electric wire 3 with respect to the holding member 1, etc., and is along the vehicle width direction. The width direction Y typically corresponds to the width direction of the holding member 1, the radial direction of the exterior member 2 and the electric wire 3, etc., and is along the vehicle height direction. The assembly direction Z typically corresponds to the assembly direction of the first member 10 and the second member 20 of the holding member 1, the radial direction of the exterior member 2 and the electric wire 3, etc., and is along the vehicle front-rear direction FR described above.

[0016] The first member 10 and the second member 20 are assembled to each other along the assembly direction Z to form a holding space portion for holding the exterior member 2 and an opening 1a through which the above-described electric wire 3 is drawn out. The first member 10 and the second member 20 are formed separately from each other, for example, by an insulating synthetic resin or the like, and are integrated with each other by a locking structure (snap fit) by the locking portion 30. The holding member 1 is formed in a substantially spherical shape (substantially cylindrical shape) as a whole when the first member 10 and the second member 20 are assembled to each other.

[0017] The locking portion 30 locks the second member 20 with respect to the first member 10. The locking portion 30 includes, for example, a claw-shaped male lock 31 provided on the first member 10 side (see FIG. 5) and a female lock 32 in the form of a locking hole provided on the second member 20 side. The locking portion 30 locks the second member 20 with respect to the first member 10 when the male lock 31 and the female lock 32 are locked along the assembly direction Z in a state where the first member 10 and the second member 20 are engaged with each other.

[0018] The engaging portion 40 constitutes a regulating structure that suppresses the wire 3 from being sandwiched between the first member 10 and the second member 20. The engaging portion 40 is provided, for example, on the mating surface 1b between the first member 10 and the second member 20 in the opening 1a. Specifically, the engaging portion 40 includes a first concavo-convex portion 41 (see FIG. 5) provided on the first end surface 10b on the side of the first member 10 that constitutes the mating surface 1b, and a second concavo-convex portion 42 provided on the second end surface 20b on the side of the second member 20 that constitutes the mating surface 1b. The engaging portion 40 suppresses the wire 3 from being sandwiched between the mating surfaces 1b when the first concavo-convex portion 41 and the second concavo-convex portion 42 are engaged with each other.

[0019] The exterior member 2 is a flexible cylindrical member that protects the wire 3 inserted therein. The exterior member 2 is constituted by, for example, a bellows-shaped member called a corrugated tube. The exterior member 2 includes annular convex portions and annular concave portions 2b (see FIG. 8) arranged alternately along the axial direction X. The exterior member 2 is molded by, for example, an insulating synthetic resin or the like.

[0020] FIG. 5 is an exploded perspective view of the holding member 1. As shown in FIG. 5, the first member 10 is formed, for example, in an arc shape (semicircular shape) along the outer peripheral surface of the exterior member 2. The first member 10 includes, for example, an outer surface 11, an inner surface 12, and a first axial end surface 10a. The outer surface 11 is the radially outer surface of the first member 10 and is formed in an arc shape. The male lock 31 and the female lock 32 (see FIG. 7) described above are provided at the end portion on the side of the second member 20 in the assembling direction Z on the outer surface 11. The inner surface 12 is the radially inner surface of the first member 10 and is formed in an arc shape. The inner surface 12 constitutes the opening 1a and the holding space portion of the holding member 1 described above. The holding space portion is a space portion for holding the exterior member 2, and the opening 1a is a space portion through which the wire 3 is drawn from the end portion 2a of the exterior member 2 to the external space. The first axial end surface 10a is one end surface of the first member 10 in the axial direction X and is formed in a flat surface shape. The first axial end surface 10a is positioned adjacent to the opening 1a and faces the external space. A part of the first concavo-convex portion 41 described above is formed at the end portion on the side of the second member 20 in the assembling direction Z on the first axial end surface 10a.

[0021] The second member 20 is formed, for example, in an arc shape (semicircular shape) along the outer circumferential surface of the exterior member 2. The second member 20 is composed of, for example, an outer surface 21, an inner surface 22, and a second axial end surface 20a. The outer surface 21 is the radially outward surface of the second member 20 and is formed in an arc shape. The outer surface 21 is provided with the male lock 31 and female lock 32 described above at the end on the first member 10 side in the assembly direction Z. The inner surface 22 is the radially inward surface of the second member 20 and is formed in an arc shape. The inner surface 22 constitutes the opening 1a and the holding space of the holding member 1 described above. The holding space is the space for holding the exterior member 2, and the opening 1a is the space through which the electric wire 3 is pulled out from the end 2a of the exterior member 2 to the outside space. The second axial end surface 20a is one end surface of the second member 20 in the axial direction X and is formed in a flat surface shape. The second shaft end face 20a is located adjacent to the opening 1a and faces the external space. A portion of the second uneven portion 42 described above is formed on the end of the second shaft end face 20a on the first member 10 side in the assembly direction Z.

[0022] The male locks 31 are provided in pairs, for example, at one end of the first member 10 in the width direction Y, and at the other end of the second member 20 in the width direction Y (see Figure 7). The pair of male locks 31 are formed in a claw shape on the outer surface 11 of the first member 10 and the outer surface 21 of the second member 20. Each pair of male locks 31 has a locking surface 31a that engages with the female lock 32 along the assembly direction Z.

[0023] The female locks 32 are provided in pairs, for example, at the other end of the first member 10 in the width direction Y, and at one end of the second member 20 in the width direction Y. The pair of female locks 32 are formed as locking holes that penetrate the first member 10 and the second member 20 along the width direction Y. A male lock 31 is inserted into and engaged with each of the pair of female locks 32. Each of the pair of female locks 32 has a locking surface 32a that is locked to the locking surface 31a of the male lock 31 along the assembly direction Z.

[0024] As shown in Figure 5, the first protrusions and recesses 41 are composed of, for example, a plurality of first protrusions 41a and a plurality of first recesses 41b arranged alternately along the axial direction X. In this embodiment, each of the first end faces 10b on one end in the width direction Y and the first end face 10b on the other end in the width direction Y of the first member 10 constituting the mating surface 1b is provided with a plurality of first protrusions 41a and a plurality of first recesses 41b arranged alternately along the axial direction X. In this embodiment, two first protrusions 41a and two first recesses 41b are provided alternately along the axial direction X, but the number of first protrusions 41a and first recesses 41b is not limited to this example and can be changed in various ways.

[0025] The second uneven portion 42 is composed of, for example, a plurality of second protrusions 42a and a plurality of second recesses 42b arranged alternately along the axial direction X. In this embodiment, the second end face 20b on one end side in the width direction Y and the second end face 20b on the other end side in the width direction Y of the second member 20 constituting the mating surface 1b are provided with a plurality of second protrusions 42a and a plurality of second recesses 42b arranged alternately along the axial direction X. The plurality of second protrusions 42a and a plurality of second recesses 42b are provided offset alternately along the axial direction X from the plurality of first protrusions 41a and a plurality of first recesses 41b of the first uneven portion 41, and are configured to be engageable with the plurality of first protrusions 41a and a plurality of first recesses 41b.

[0026] In this embodiment, the first uneven portion 41 is provided such that a part of the first protrusion 41a is exposed to the first shaft end face 10a and is flush with the first shaft end face 10a, and the second uneven portion 42 is provided such that a part of the second protrusion 42a is exposed to the second shaft end face 20a and is flush with the second shaft end face 20a. Specifically, in this embodiment, the first uneven portion 41 is provided on the first end face 10b on one end side in the width direction Y of the first member 10, such that a part of the first protrusion 41a is exposed to the first shaft end face 10a and is flush with the first shaft end face 10a. The second uneven portion 42 is provided on the second end face 20b on the other end side in the width direction Y of the second member 20, such that a part of the second protrusion 42a is exposed to the second shaft end face 20a and is flush with the second shaft end face 20a.

[0027] Figure 6 is a front view of the retaining member 1. As shown in Figure 6, the first protrusion 41 is configured to include, for example, a third protrusion 41c provided on the first shaft end face 10a. In this embodiment, the third protrusion 41c is provided on the first end face 10b on the other end side (left side) in the width direction Y of the first member 10, and engages with a part of the second protrusion 42a that is exposed and provided on the second shaft end face 20a as described above. That is, the third protrusion 41c is positioned opposite a part of the second protrusion 42a along the width direction Y. The third protrusion 41c is exposed on the first shaft end face 10a and is provided flush with the first shaft end face 10a. In this embodiment, when the first member 10 and the second member 20 are engaged with each other, the first shaft end face 10a, the third protrusion 41c, the second shaft end face 20a, and a portion of the second protrusion 42a are formed as flat surfaces without steps along the axial direction X.

[0028] Furthermore, the second protrusion 42 is configured to include, for example, a fourth protrusion 42c provided on the second shaft end face 20a. In this embodiment, the fourth protrusion 42c is provided on the second end face 20b on one end side (right side) in the width direction Y of the second member 20, and engages with a part of the first protrusion 41a that is exposed and provided on the first shaft end face 10a as described above. That is, the fourth protrusion 42c is positioned opposite a part of the first protrusion 41a along the width direction Y. The fourth protrusion 42c is exposed on the second shaft end face 20a and is provided flush with the second shaft end face 20a. In this embodiment, when the first member 10 and the second member 20 are engaged with each other, the first shaft end face 10a, the fourth protrusion 42c, the second shaft end face 20a, and a part of the first protrusion 41a are formed as flat surfaces without steps along the axial direction X.

[0029] Figure 7 is a cross-sectional view of the locking portion 30 of the retaining member 1, and Figure 8 is a cross-sectional view of the retaining member 1 showing the state in which the first recessed portion 41 and the second recessed portion 42 are engaged. As shown in Figures 7 and 8, in this embodiment, the overlap amount L1 of the first recessed portion 41 and the second recessed portion 42 along the assembly direction Z is formed to be larger than the gap L2 formed by the play of the locking portion 30 along the assembly direction Z. The overlap amount L1 is the amount of overlap (engagement amount) between the first protrusion 41a and the first recess 41b of the first recessed portion 41 and the second protrusion 42a and the second recess 42b of the second recessed portion 42. The gap L2 is the gap along the assembly direction Z between the locking surface 31a of the male lock 31 and the locked portion 32a of the female lock 32.

[0030] Furthermore, in this embodiment, the first uneven portion 41 is provided between the first axial end face 10a of the first member 10 and the end 2a of the exterior member 2, and the second uneven portion 42 is provided between the second axial end face 20a of the second member 20 and the end 2a of the exterior member 2. In other words, in this embodiment, the first uneven portion 41 and the second uneven portion 42 are formed over the entire length in the axial direction X of the mating surface 1b of the opening 1a. Thus, in this embodiment, the end 2a of the exterior member 2 and the first axial end face 10a and the second axial end face 20a are relatively far apart along the axial direction X, and the first uneven portion 41 and the second uneven portion 42 are formed over the length between the end 2a of the exterior member 2 and the first axial end face 10a and the second axial end face 20a.

[0031] In this embodiment, the inner surface 12 of the first member 10 and the inner surface 22 of the second member 20 are each provided with a projection 13 that engages with the annular recess 2b of the exterior member 2. The projection 13 is formed, for example, in an arc shape along the outer circumferential surface of the exterior member 2 and protrudes radially inward. In this embodiment, the engagement of the projection 13 with the annular recess 2b restricts the movement of the exterior member 2 along the axial direction X relative to the first member 10 and the second member 20, and the exterior member 2 is held in the internal space of the holding member 1.

[0032] Figure 9 is a cross-sectional view of the retaining member 1, showing the first protrusion 41 and the second protrusion 42 separated from each other. As shown in Figure 9, in this embodiment, the first protrusion 41a is formed in a tapered shape such that, when viewed from the width direction Y, the cross-sectional area decreases as it moves toward the second recess 42b along the assembly direction Z. The first recess 41b is also formed in a tapered shape such that, when viewed from the width direction Y, the opening area increases as it moves toward the second protrusion 42a along the assembly direction Z.

[0033] Furthermore, in this embodiment, the second protrusion 42a is formed in a tapered shape such that, when viewed from the width direction Y, its cross-sectional area decreases as it moves toward the first recess 41b along the assembly direction Z. Similarly, the second recess 42b is formed in a tapered shape such that, when viewed from the width direction Y, its opening area increases as it moves toward the first protrusion 41a along the assembly direction Z. In this way, in this embodiment, the tapered first protrusion 41a and first recess 41b and the second protrusion 42a and second recess 42b enhance their engagement, thereby improving the assembly of the first member 10 and the second member 20.

[0034] In this embodiment, the first and second protrusions 41 and 42 can prevent the electric wire 3 from being pinched in the following two situations. The first is when the electric wire 3 is inserted through the outer casing member 2 and the holding member 1 while the holding member 1 is holding the outer casing member 2. In this case, even if the electric wire 3 tries to enter the mating surface 1b between the first member 10 and the second member 20 at the opening 1a, the first and second protrusions 41 and 42 block the entry of the electric wire 3. That is, the first and second protrusions 41 and 42 constitute a guard wall for the electric wire 3 so that the electric wire 3 does not move radially outward from the opening 1a.

[0035] The second case is when the retaining member 1 is attached to the exterior member 2 after the electric wire 3 has been inserted through the exterior member 2. In this case, if the electric wire 3 is caught between the first protrusion 41 and the second protrusion 42 and the worker attempts to engage the first member 10 and the second member 20, the first protrusion 41 and the second protrusion 42 will 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 first protrusion 41 and the second protrusion 42. A larger engagement force than usual is required, making it easier for the worker to notice that the electric wire 3 is caught.

[0036] Furthermore, in this embodiment, if the electric wire 3 is inserted into the mating surface 1b between the first member 10 and the second member 20, the male lock 31 and female lock 32 of the locking part 30 will not be able to lock. In other words, in this embodiment, the overlap amount L1 of the first and second protrusions 41 and the second protrusions 42 is set to be larger than the gap L2 of the locking part 30, so that the male lock 31 and female lock 32 are not locked while the electric wire 3 is sandwiched between the mating surface 1b.

[0037] Thus, in this embodiment, when the electric wire 3 is inserted through the opening 1a of the outer casing member 2 and the holding member 1, the holding member 1 can prevent the electric wire 3 from entering the mating surface 1b between the first member 10 and the second member 20. Furthermore, when the electric wire 3 is already inserted through the outer casing member 2, the holding member 1 prevents the first member 10 and the second member 20 from engaging with the electric wire 3 while it is being held in place. Therefore, in this embodiment, the holding member 1 can prevent the electric wire 3 from entering the mating surface 1b between the first member 10 and the second member 20 in either of the two assembly processes.

[0038] As described above, in the holding member 1 and wire harness WH of this embodiment, the first uneven portion 41 is composed of a plurality of first protrusions 41a and a plurality of first recesses 41b arranged alternately along the axial direction X, and is provided between the first axial end face 10a of the first member 10 that faces the external space and the end 2a of the exterior member 2, and the second uneven portion 42 is composed of a plurality of second protrusions 42a and a plurality of second recesses 42b arranged alternately along the axial direction X, and is provided between the second axial end face 20a of the second member 20 that faces the external space and the end 2a of the exterior member 2. With this configuration, the retaining member 1 and wire harness WH can prevent the wire 3 from being pinched over a range from the end 2a of the outer casing member 2 to the first shaft end face 10a and the second shaft end face 20a, even when the end 2a of the outer casing member 2 and the first shaft end face 10a and the second shaft end face 20a are relatively far apart, through the engagement of the multiple first protrusions 41a and multiple first recesses 41b with the multiple second protrusions 42a and multiple second recesses 42b. As a result, the retaining member 1 and wire harness WH can properly prevent the wire 3 from being pinched.

[0039] Furthermore, in the holding member 1 of this embodiment, the overlap amount L1 of the first recessed portion 41 and the second recessed portion 42 along the assembly direction Z is formed to be larger than the gap L2 formed by the play of the locking portion 30 along the assembly direction Z. With this configuration, the holding member 1 can more reliably prevent the electric wire 3 from being caught in the mating surface 1b of the first member 10 and the second member 20 by ensuring an overlap amount L1 of more than or equal to the gap L2. Moreover, even if the electric wire 3 is caught, since an overlap amount L1 of more than or equal to the gap L2 is ensured in the first recessed portion 41 and the second recessed portion 42, the added thickness of the electric wire 3 will cause the locking portion 30 to become unlockable, and consequently, the assembly of the first member 10 and the second member 20 can be made impossible.

[0040] Furthermore, in the holding member 1 of this embodiment, the first protrusion 41 is provided such that a part of the first protrusion 41a is exposed to the first shaft end face 10a and is flush with the first shaft end face 10a, and the second protrusion 42 is provided such that a part of the second protrusion 42a is exposed to the second shaft end face 20a and is flush with the second shaft end face 20a. With this configuration, the holding member 1 can, for example, prevent the first protrusion 41 and the second protrusion 42 from protruding from the first shaft end face 10a and the second shaft end face 20a along the axial direction X, and thereby suppress snagging of the electric wire 3 on the first protrusion 41 and the second protrusion 42.

[0041] Furthermore, in the holding member 1 of this embodiment, the first protrusion 41 is provided on the first shaft end face 10a and includes a third protrusion 41c that faces a part of the second protrusion 42a along the width direction Y, and the second protrusion 42 is provided on the second shaft end face 20a and includes a fourth protrusion 42c that faces a part of the first protrusion 41a along the width direction Y. With this configuration, the holding member 1 can prevent the electric wire 3 from being pinched between the first member 10 and the second member 20 even when the electric wire 3 is pulled in a bent state along the width direction Y at the first shaft end face 10a and the second shaft end face 20a by the third protrusion 41c and the fourth protrusion 42c.

[0042] Furthermore, in the retaining member 1 of this embodiment, the first protrusion 41 is formed in a tapered shape such that the first protrusion 41a is inclined to reduce the cross-sectional area, and the first recess 41b is formed in a tapered shape such that the opening area is increased. The second protrusion 42 is formed in a tapered shape such that the second protrusion 42a is inclined to reduce the cross-sectional area, and the second recess 42b is formed in a tapered shape such that the opening area is increased. With this configuration, the retaining member 1 can, for example, improve the engagement between the first protrusion 41a and the first recess 41b and the second protrusion 42a and the second recess 42b, and consequently improve the ease of assembly of the first member 10 and the second member 20.

[0043] In this embodiment, the locking portion 30 is exemplified as having a male lock 31 on the first member 10 side and a female lock 32 on the second member 20 side. However, the embodiment is not limited to this example, and for example, the female lock 32 may be provided on the first member 10 side and the male lock 31 on the second member 20 side.

[0044] Although embodiments of the present invention have been illustrated above, these embodiments are merely examples and are not intended to limit the scope of the invention. The above embodiments can be implemented in various other forms, and various omissions, substitutions, combinations, and modifications can be made without departing from the spirit of the invention. Furthermore, each configuration, shape, and other specifications (structure, type, direction, form, size, length, width, thickness, height, number, arrangement, position, material, etc.) can be modified as appropriate. [Explanation of Symbols]

[0045] 1. Retaining member 1a opening 1b mating surface 2. Exterior components 2a end 3 electric wire 4 Protectors 10 First Member 10a 1st shaft end face 10b 1st end surface 20 Second Member 20a 2nd shaft end face 20b 2nd end face 30 Locking part 40 Engagement part 41 1st uneven part 41a First protrusion 41b First recess 41c Third protrusion 42 Second uneven part 42a Second protrusion 42b Second recess 42c Fourth protrusion L1 Wrap amount L2 Gap X-axis direction Y width direction Z Assembly direction

Claims

1. A first member and a second member that hold the end of the outer casing member through which the electric wire is inserted along the axial direction, and which are assembled to each other along an assembly direction intersecting the axial direction, A locking mechanism for locking the first member and the second member along the assembly direction, The first member and the second member include an engaging portion provided on the mating surface between the first member and the second member at an opening through which the electric wire is pulled out from the end of the outer casing member into the external space, The engagement portion is configured to include a first protrusion and recess provided on the first end face of the first member that constitutes the mating surface, and a second protrusion and recess provided on the second end face of the second member that constitutes the mating surface and engages with the first protrusion and recess. The first uneven portion is composed of a plurality of first protrusions and a plurality of first recesses arranged alternately along the axial direction, and is provided extending between the first axial end face of the first member facing the external space and the end of the exterior member. The second uneven portion comprises a plurality of second protrusions and a plurality of second recesses arranged alternately along the axial direction, and is provided extending between the second axial end face of the second member facing the external space and the end of the exterior member. Retaining member.

2. The overlap amount of the first and second protrusions along the assembly direction is formed to be greater than the gap formed by the play of the locking portion along the assembly direction. The retaining member according to claim 1.

3. The first uneven portion is provided such that a part of the first protrusion is exposed to the first shaft end face and is flush with the first shaft end face, The second protrusion is provided such that a portion of the second protrusion is exposed to the second shaft end face and is flush with the second shaft end face. The retaining member according to claim 1 or 2.

4. The first protrusion is provided on the first shaft end face and includes a third protrusion that faces a part of the second protrusion along the width direction intersecting the axial direction and the assembly direction. The second protrusion is provided on the second axial end face and includes a part of the first protrusion and a fourth protrusion that faces it along the width direction. The retaining member according to claim 3.

5. The first uneven portion is formed in a tapered shape such that the cross-sectional area of ​​the first protrusion decreases as it approaches the second recess along the assembly direction, and the first recess is formed in a tapered shape such that the opening area increases as it approaches the second protrusion along the assembly direction. The second uneven portion is formed in a tapered shape such that the cross-sectional area of ​​the second protrusion decreases as it approaches the first recess along the assembly direction, and the second recess is formed in a tapered shape such that the opening area increases as it approaches the first protrusion along the assembly direction. The retaining member according to claim 1 or 2.

6. Power lines and, The aforementioned electric wire is inserted along the axial direction into the outer casing member, A retaining member that holds the end of the exterior member, The system includes a protector that rotatably supports the aforementioned holding member, The aforementioned retaining member is A first member and a second member are assembled to each other along an assembly direction intersecting the axial direction, A locking mechanism for locking the first member and the second member along the assembly direction, The first member and the second member include an engaging portion provided on the mating surface between the first member and the second member at an opening through which the electric wire is pulled out from the end of the outer casing member into the external space, The engagement portion is configured to include a first protrusion and recess provided on the first end face of the first member that constitutes the mating surface, and a second protrusion and recess provided on the second end face of the second member that constitutes the mating surface and engages with the first protrusion and recess. The first uneven portion is composed of a plurality of first protrusions and a plurality of first recesses arranged alternately along the axial direction, and is provided extending between the first axial end face of the first member facing the external space and the end of the exterior member. The second uneven portion comprises a plurality of second protrusions and a plurality of second recesses arranged alternately along the axial direction, and is provided extending between the second axial end face of the second member facing the external space and the end of the exterior member. Wire harness.

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