阅读说明：本技术 线束单元及线束的安装结构 (Wire harness unit and wire harness mounting structure ) 是由 加藤大贵 山本悟司 于 2019-12-12 设计创作，主要内容包括：通过本说明书公开的技术是安装于箱体(60)的线束单元(10),构成为具备线束(30)和保持器(40),线束(30)在片状的底基材(20)固定有多条包覆电线(11),保持器(40)具有：一对夹持部,夹着保持底基材(20)中与固定有多条包覆电线(11)的部分不同的余裕部(34)；和嵌合部,相对于设置于箱体(60)的被嵌合部在左右方向嵌合,从而与被嵌合部在前后方向卡止。(The disclosed technology is a wire harness unit (10) that is mounted on a case (60), said wire harness unit being configured to be provided with a wire harness (30) and a holder (40), wherein a plurality of coated wires (11) are fixed to the wire harness (30) on a sheet-shaped base material (20), and the holder (40) is provided with: a pair of clamping parts for clamping a margin part (34) of the holding base material (20) different from a part fixed with a plurality of coated wires (11); and a fitting portion that is fitted in the left-right direction with respect to a fitted portion provided in the case (60) and is locked to the fitted portion in the front-rear direction.)

1. A wire harness unit is mounted on a member to be mounted,

the wire harness unit is provided with a wire harness and a holder,

the wire harness has at least one electric wire fixed to a sheet-like base material,

the holder has: a pair of clamping portions for clamping a margin portion of the bottom base material different from a portion to which the electric wire is fixed; and a fitting portion that is fitted to a fitted portion provided on the attached member in a direction intersecting an extending direction of the electric wire, and is locked to the fitted portion in the extending direction of the electric wire.

2. The wire harness unit according to claim 1,

the pair of clamping parts have a plurality of protrusions protruding toward the margin part,

the plurality of projections in one of the pair of clamping portions and the plurality of projections in the other of the pair of clamping portions are arranged alternately,

the margin portion is disposed in a meandering manner between the plurality of projections arranged in a staggered manner.

3. The wire harness unit according to claim 1 or claim 2,

the holder further has a pair of walls connected to the pair of clamping portions and arranged along the wire harness,

a hinge for connecting the pair of walls to each other is provided on one end side of the pair of walls,

a locking mechanism is provided on the other end side of the pair of wall bodies over the pair of wall bodies, and the locking mechanism maintains a state in which the margin portion is sandwiched by the pair of sandwiching portions.

4. A wire harness mounting structure is provided with:

the wire harness unit according to any one of claim 1 to claim 3; and

the mounted member of the wire harness unit is mounted,

the fitting portion is formed to protrude from a pair of walls that are connected to the pair of clamping portions and that are arranged along the wire harness,

the mounted member has a receiving portion that receives the holder in a state where the allowance portion is sandwiched by the pair of sandwiching portions,

the inner wall of the housing portion is formed with the fitted portion recessed in accordance with the protruding dimension of the fitting portion.

5. The mounting structure of a wire harness according to claim 4,

the retainer further includes a retaining portion that engages with a portion to be retained provided in the housing by being fitted in a concave-convex manner in a direction intersecting with an extending direction of the electric wire, and that is retained by the retaining portion in a direction in which the retainer is removed from the housing.

6. The mounting structure of a wire harness according to claim 5,

the anti-drop part is formed in a protruding end part of the embedding part in a protruding way,

the engaged portion is further recessed in an inner surface of the engaged portion.

Technical Field

The technology disclosed by the present specification relates to a wire harness unit and a mounting structure of a wire harness.

Background

For example, as a harness attachment structure for attaching a harness having a trunk portion in which a plurality of wires are bundled to a sheet, a harness attachment structure described in japanese patent application laid-open No. 2012-51494 (patent document 1 below) is known.

A binding band is attached to a trunk portion of the wire harness, and the binding band is wound around an outer periphery of the trunk portion. The binding band is provided with a locking part in a connected manner, and the locking part is locked with the edge part of the slit arranged on the lower surface of the sheet, so that the wire harness is mounted on the lower surface of the sheet.

Documents of the prior art

Patent document

Patent document 1: japanese laid-open patent publication No. 2012-51494

Disclosure of Invention

Problems to be solved by the invention

However, when the bundling band is wound around the outer periphery of the wire harness as described above, for example, when the wire harness is strongly stretched, the bundling band is trapped in the electric wires of the wire harness, and there is a concern that the electric wires may be damaged.

In the present specification, a technique of suppressing damage to an electric wire of a wire harness by another member is disclosed.

Means for solving the problems

The technology disclosed in the present specification is a wire harness unit to be mounted on a member to be mounted, the wire harness unit being configured to include a wire harness to which at least one electric wire is fixed to a sheet-like base material, and a holder including: a pair of clamping portions for clamping a margin portion of the bottom base material different from a portion to which the electric wire is fixed; and a fitting portion that is fitted to a fitted portion provided on the attached member in a direction intersecting an extending direction of the electric wire, and is locked to the fitted portion in the extending direction of the electric wire.

According to the wire harness unit having such a configuration, the margin portion different from the portion to which the electric wire is fixed is held between the pair of clamping portions. The fitting portion is fitted to the fitted portion of the member to be mounted, and the wire harness unit is mounted to the member to be mounted. Therefore, for example, in the case where the wiring harness is strongly stretched, a stretching force acts on the base substrate of the wiring harness. That is, since the other member does not sink into the electric wire, the electric wire can be prevented from being damaged by the other member.

The wire harness unit disclosed in the present specification may have the following configuration.

The pair of clamping portions may have a plurality of protrusions protruding toward the margin portion, the plurality of protrusions in one of the pair of clamping portions may be arranged alternately with the plurality of protrusions in the other of the pair of clamping portions,

the margin portion is disposed in a meandering manner between the plurality of projections arranged in a staggered manner.

According to this configuration, since the margin portion is disposed so as to meander between the plurality of protrusions in the pair of clamping portions, when the wire harness is pulled, the protrusions are brought into a state of being sunk into the base material, and the wire harness can be prevented from falling off from the retainer. In addition, the holding force of the wire harness in the retainer can be improved.

The retainer may further include a pair of walls connected to the pair of clamping portions and arranged along the wire harness, wherein hinges for connecting the pair of walls to each other are provided on one end sides of the pair of walls, and a lock mechanism that holds the pair of clamping portions in a state where the margin portion is clamped by the pair of clamping portions is provided over the pair of walls on the other end sides of the pair of walls.

According to this configuration, the retainer is held by the lock mechanism in a state where the margin portion is sandwiched between the pair of sandwiching portions, and therefore, the retainer can be prevented from being accidentally detached from the wire harness.

The technique disclosed in the present specification is a wire harness mounting structure including the wire harness unit and the member to be mounted to which the wire harness unit is mounted, wherein the fitting portion is formed so as to protrude from the pair of wall bodies, the member to be mounted includes a receiving portion that receives the retainer with the space portion sandwiched between the pair of sandwiching portions, and the fitting portion that is recessed in accordance with a protruding dimension of the fitting portion is formed on an inner wall of the receiving portion.

According to such a configuration, the retainer of the wire harness unit is accommodated in the accommodating portion, and the fitted portion is fitted to the fitting portion, whereby the retainer can be attached to the member to be attached. Further, since the holder is accommodated in the accommodating portion, the space portion is held in a state of being sandwiched between the pair of sandwiching portions, and therefore, the space portion can be further prevented from coming off from the pair of sandwiching portions.

The retainer may further include a retaining portion that is engaged with a portion to be retained provided in the housing by being fitted to a recess and projection in a direction intersecting with an extending direction of the electric wire, so as to be locked to the portion to be retained in a direction in which the retainer is disengaged from the housing.

The retaining portion may be formed to protrude further from a protruding end portion of the fitting portion, and the retained portion may be formed to be recessed further from an inner surface of the fitted portion.

According to this configuration, the pair of walls can be prevented from coming off the housing section by the locking of the retaining section and the retained section. This can prevent the wire harness unit from falling off from the member to be attached.

Effects of the invention

According to the technique disclosed by the present specification, the wires of the wire harness can be inhibited from being damaged by other members.

Drawings

Fig. 1 is a wire harness mounting structure according to embodiment 1, and is a perspective view showing a state in which a wire harness unit is mounted in a holder housing portion of a box.

Fig. 2 is a front view showing a state in which the wire harness unit is mounted to the holder housing portion of the case.

Fig. 3 is a plan view showing a state in which the wire harness unit is attached to the holder housing portion of the case.

Fig. 4 is a side view showing a state in which the wire harness unit is mounted to the holder housing portion of the case.

Fig. 5 is a sectional view taken along line a-a of fig. 3.

Fig. 6 is a sectional view taken along line B-B of fig. 5.

Fig. 7 is a perspective view of the wire harness unit.

Fig. 8 is a front view of the wire harness unit.

Fig. 9 is a side view of the wire harness unit.

Fig. 10 is a bottom view of the wire harness unit.

Fig. 11 is a cross-sectional view taken along line C-C of fig. 8.

Fig. 12 is a sectional view taken along line D-D of fig. 8.

Fig. 13 is a perspective view showing a state before the wire harness is assembled with the retainer.

Fig. 14 is a perspective view showing a state before the wire harness unit is attached to the holder housing portion of the case.

Fig. 15 is a perspective view of the holder.

Fig. 16 is a front view of the holder.

Fig. 17 is a bottom view of the holder.

Fig. 18 is a perspective view of a wire harness unit of embodiment 2.

Fig. 19 is a front view of the wire harness unit.

Fig. 20 is a perspective view of the holder.

Detailed Description

< embodiment >

An embodiment of the technology disclosed in the present specification will be described with reference to fig. 1 to 17.

The present embodiment exemplifies a mounting structure S of the wire harness 30 in which the wire harness unit 10 is mounted to the box 60 of the device, and the wire harness unit 10 connects devices, not shown, mounted on a vehicle to each other. In the following description, the F side is the front side, the B side is the rear side, the L side is the left side, the R side is the right side, the U side is the upper side, and the D side is the lower side.

The wire harness unit 10 includes a wire harness 30 and a holder 40 assembled to the wire harness 30, and the wire harness 30 has a plurality of wires.

As shown in fig. 2 and 8, the wire harness 30 includes a plurality of coated wires 11 and a pair of base materials 20 that sandwich and fix the plurality of coated wires 11 from both sides. The wire harness 30 in the present embodiment is configured such that six coated wires 11 are sandwiched between a pair of base materials 20 from both sides.

Each covered electric wire 11 is formed by covering a core wire with an insulating covering.

The pair of bottom base materials 20 are formed into a belt shape long in the front and rear direction by a sheet-shaped nonwoven fabric. The nonwoven fabric is a fabric formed by winding or bonding fibers, and examples thereof include a fiber sheet, a woven fabric (a film-like sheet made of only fibers), and a batt (a felt-like fiber). In the present embodiment, the base material 20 is formed of a fiber sheet. The base material 20 may be a woven fabric made by weaving natural fibers or synthetic fibers.

As shown in fig. 2 and 8, six coated electric wires 11 are fixed to be aligned flat in the vertical direction at a substantially central portion in the vertical direction of the base material 20.

In the wire harness 30, a portion of the six covered electric wires 11 sandwiched and fixed by the pair of base materials 20 is formed as an electric wire fixing portion 32, and both sides of the electric wire fixing portion 32 in the vertical direction are formed as margin portions 34 for fixing the base materials 20 to each other.

The coated electric wire 11 is fixed to the base material 20 by a known fixing method such as ultrasonic welding or thermal welding to join the coated electric wire 11 to the base material 20, fixing the coated electric wire 11 with an adhesive or a bonding agent, or sewing the coated electric wire 11 to the base material 20. The base materials 20 are fixed to each other by a known fixing method such as ultrasonic welding or thermal welding to bond the base materials 20 to each other, or by fixing the base materials 20 to each other with an adhesive or a bonding agent.

As shown in fig. 7 and 9, both end portions of the wire harness 30 are connected to the plurality of coated wires 11 drawn out from the pair of base materials 20, and the plurality of coated wires 11 drawn out from the pair of base materials 20 are connected to various electric components mounted on the vehicle, not shown.

The holder 40 is formed of synthetic resin. As shown in fig. 7, 9 to 12, the retainer 40 is attached to the distal end portion of the wire fixing portion 32 of the wire harness 30. Therefore, in the harness unit 10, the rear end portion of the holder 40 draws out the wire fixing portion 32 of the wire harness 30 toward the rear, and the front end portion of the holder 40 draws out the plurality of coated wires 11.

As shown in fig. 5, the retainer 40 includes: a pair of walls 42 disposed along both sides of the wire harness 30 in the left-right direction; a pair of hinges 43 connecting the pair of walls 42 to each other; a lock mechanism 46 provided over the pair of walls 42; and two pairs of clamping portions 50 for clamping the wire harness 30 from both sides in the left-right direction.

As shown in fig. 7 and 9, each of the pair of walls 42 is formed in a substantially rectangular flat plate shape. A pair of hinges 43 connecting the pair of walls 42 to each other are formed in a front-rear direction at an upper end 42U, which is one end of the pair of walls 42. The pair of hinges 43 can be bent, and the plate thickness is formed thinner than the wall body 42.

Before the holder 40 is assembled to the wire harness 30, as shown in fig. 13, 15 to 17, the pair of walls 42 extend straight, and the inner surfaces 42A of the walls 42 disposed on the wire harness 30 side face downward. When the retainer 40 is assembled to the wire harness 30, the pair of walls 42 are folded in two by the pair of hinges 43 and are arranged along both sides of the wire harness 30 in the left-right direction, as shown in fig. 1 to 5 and 7 to 9.

As shown in fig. 7 and 8, a plurality of support projections 41 that contact the wire fixing portion 32 of the wire harness 30 are formed on the inner surfaces 42A of the pair of walls 42.

In a state before the retainer 40 is assembled to the wire harness 30, as shown in fig. 15 and 17, the plurality of support projections 41 are formed in three rows in the left-right direction at intervals in the front-rear direction. The support protrusions 41 in the adjacent rows of the support protrusions 41 arranged in three rows in the left-right direction are arranged to be shifted in the front-rear direction. That is, the plurality of support projections 41 are formed so as to be staggered in the front-rear and left-right directions on the inner surface 42A of the wall body 42.

As shown in fig. 15 and 17, the support projections 41 of the pair of walls 42 are arranged so as to intersect with each other in the front-rear and left-right directions of the pair of walls 42. Therefore, when the retainer 40 is assembled to the wire harness 30, as shown in fig. 6 and 12, the plurality of support protrusions 41 of the pair of walls 42 contact the wire fixing portion 32 from both sides in the left-right direction in a staggered manner in the front-rear direction, and support the wire fixing portion 32 from both sides in the left-right direction.

As shown in fig. 2, 5, and 8, a pair of clamping portions 50 are formed at the upper end edge portion and the lower end edge portion of the inner surfaces 42A of the pair of walls 42, respectively. Each clip 50 includes a thick portion 52 protruding from wall 42 toward the margin 34 of wire harness 30, and a plurality of protrusions 54 protruding from thick portion 52 toward the margin 34.

Thick portion 52 is formed over the entire length of wall 42 in the front-rear direction. The protruding dimension of thick portion 52 from wall 42 is set to be substantially the same as the distance between outer surface 32A of wire fixing portion 32 and outer surface 34A of margin portion 34.

As shown in fig. 15 and 17, the plurality of projections 54 are formed in a row at intervals in the front-rear direction. The plurality of projections 54 are also arranged so as to be staggered in the front-rear and left-right directions in the pair of walls 42, similarly to the support projections 41. The protruding dimension of the protrusion 54 from the thick portion 52 is set to be slightly larger than the protruding dimension of the support protrusion 41.

Therefore, when the retainer 40 is assembled to the wire harness 30, as shown in fig. 11, the plurality of projections 54 of the pair of walls 42 press the margin portions 34 from the front and rear to both sides alternately in the front-rear direction, and the margin portions 34 are arranged so as to meander in the left-right direction between the pair of clip portions 50.

As shown in fig. 5, the lock mechanism 46 is formed in a pair of sandwiching portions 50 on the other end side, i.e., the lower end side, of the pair of walls 42.

The lock mechanism 46 includes: a lock receiving portion 47 formed on a thick portion 52 of the right-hand clamping portion 50 which is one clamping portion 50; and a locking piece 48 formed to be elastically displaceable on a thick portion 52 of the left-hand holding portion 50 which is the other holding portion 50.

The lock receiving portion 47 is recessed upward from the lower surface 52U of the thick portion 52. The lock receiving portion 47 has a height dimension in the vertical direction of an inner edge portion 47A on the harness 30 side that is smaller than that of an outer edge portion 47B.

The locking piece 48 is formed to extend in a cantilever manner from a substantially central portion in the front-rear direction of the lower end edge of the thick portion 52 toward the wire harness 30 side. A lock projection 48A projecting upward is formed at the projecting end portion of the lock piece 48.

When the retainer 40 is assembled to the wire harness 30, the locking piece 48 is elastically deformed downward by the locking projection 48A straddling the inner edge 47A of the locking receiving portion 47. When the retainer 40 is assembled to the wire harness 30 and the pair of walls 42 are arranged along the wire harness 30, the locking projection 48A passes over the inner edge 47A, and the locking piece 48 elastically returns. When the lock piece 48 is elastically restored, as shown in fig. 5, the lock projection 48A and the inner edge 47A of the lock receiving portion 47 are locked in the left-right direction, and the pair of walls 42 are held in a state of being arranged along the wire harness 30.

As shown in fig. 3, 6, and 7, a plurality of fitting portions 49 protruding outward are formed on outer side surfaces 42B of the pair of walls 42. In the present embodiment, two of the wall bodies 42 are formed at intervals in the front-rear direction. Each fitting portion 49 is formed in a rib shape extending in the vertical direction over the entire length of wall 42 and having a substantially rectangular shape in plan view.

Further, the fitting portion 49 of the left wall 42 is formed with a retaining portion 44 protruding outward from the fitting portion 49.

As shown in fig. 9, the retaining portion 44 is formed substantially rectangular in side view at a substantially central portion in the vertical direction of the fitting portion 49. As shown in fig. 8, the lower portion of the retaining portion 44 is formed as a guide surface 44A inclined toward the fitting portion 49 side as it goes downward.

The cabinet 60 of the machine is formed of synthetic resin. As shown in fig. 3, the case 60 is formed in a substantially rectangular case shape in plan view. A wire harness routing path 62 is formed in a side wall 61 of the case 60.

As shown in fig. 1, 3, and 14, the harness routing path 62 includes a flat plate-shaped bottom wall 63 extending outward from the side wall 61 of the housing 60, and an upright wall 64 extending upward from the upper surface of the bottom wall 63 to the same height as the side wall 61.

A plurality of reinforcing portions 65 are formed on an outer surface 64A of the standing wall 64 on the side opposite to the case 60. The plurality of reinforcing portions 65 are arranged at intervals in the front-rear direction. Each reinforcing portion 65 is formed in a plate shape inclined in a direction away from the standing wall 64 from the upper end of the standing wall 64 toward the bottom wall 63. Therefore, the standing wall 64 can suppress elastic displacement outward from the case 60 side.

As shown in fig. 1, 3, and 6, a holder housing portion 66 is formed at the front end portion of the wire harness routing path 62, and the holder housing portion 66 can house the holder 40 of the wire harness unit 10.

The holder housing portion 66 is formed by forming a front end portion of one side wall 61 of the case 60 to be thick.

The holder accommodating portion 66 is formed to be opened forward, backward, and upward, and can accommodate the holder 40 from above.

The longitudinal length of the holder accommodating portion 66 is substantially the same as the longitudinal length of the holder 40. Therefore, when the holder 40 of the wire harness unit 10 is accommodated in the holder accommodating portion 66, the wire harness 30 drawn out rearward from the holder 40 is arranged in the wire harness routing passage 62, and the plurality of coated wires 11 drawn out forward from the holder 40 are in a state drawn out forward from the wire harness routing passage 62.

As shown in fig. 2, 3, 5, and 6, the width dimension in the left-right direction in the holder accommodating portion 66 is substantially the same as the width dimension of the holder 40 attached to the wire harness 30. Here, the substantially same includes the following cases: the width dimension in the left-right direction in the holder housing portion 66 is the same as the width dimension of the holder 40; the holder housing portion 66 may be considered to be substantially the same even when the width in the left-right direction is different from the width of the holder 40.

Therefore, when the holder 40 is stored in the holder storage 66 from above, the pair of walls 42 held by the lock mechanism 46 are doubly held in the holder storage 66.

A plurality of fitting portions 67 are formed over the entire length in the vertical direction on both left and right inner walls 66A of the holder accommodating portion 66, and when the holder 40 is accommodated in the holder accommodating portion 66, the fitting portion 49 of the holder 40 is accommodated in the plurality of fitting portions 67 from above. In the present embodiment, as shown in fig. 3 and 6, two fitted portions 67 corresponding to the fitting portions 49 of the retainer 40 are formed at intervals in the front-rear direction on the inner walls 66A of the retainer housing portion 66. The fitted portion 67 is formed recessed in the inner wall 66A of the holder accommodating portion 66 to have a substantially rectangular shape in a plan view.

Therefore, when the fitting portion 49 of the retainer 40 is fitted into the fitted portion 67 from above, the fitted portion 67 and the fitting portion 49 are in a state of being fitted into the left-right direction, which is a direction intersecting the extending direction of the wire harness 30. When the fitted portion 67 and the fitting portion 49 are fitted to each other in a concave-convex manner, the fitted portion 67 and the fitting portion 49 are locked in the front-rear direction, and thus the wire harness unit 10 is held so as not to fall off from the holder housing portion 66 in the extending direction of the wire harness 30.

As shown in fig. 5 and 6, a substantially rectangular retaining hole 68 is formed in the fitted portion 67 of the left inner wall 66A of the holder housing portion 66 so that the retaining hole 68 penetrates the standing wall 64 in the left-right direction.

The retaining hole 68 is formed in a substantially central portion in the vertical direction of the fitted portion 67 so as to correspond to the retaining portion 44 in the fitting portion 49 of the retainer 40. Therefore, when the retainer 40 is housed in the retainer housing 66 from above and the retainer 40 reaches the normal assembly position, the retaining portion 44 of the retainer 40 is fitted in the retaining hole 68. When the retaining portion 44 is fitted into the retaining hole 68, the upper surface 44U of the retaining portion 44 and the upper edge 68U of the retaining hole 68 are locked in the vertical direction, and the retainer 40 of the wire harness unit 10 is not separated upward from the retainer housing portion 66.

The present embodiment is configured as described above, and the operation and effect of the wire harness unit 10 attached to the housing of the device will be described next.

Generally, a wire harness including a plurality of coated electric wires is configured by winding a bundling band around the outer peripheries of the plurality of coated electric wires and bundling the wires. In the case where the binding member such as the binding band is wound around the outer periphery of the electric wire in this manner, for example, when the wire harness is strongly stretched, the binding member is stuck into the covered electric wire, and the covered electric wire may be damaged.

Therefore, the present inventors have made intensive studies to solve the above problems, and as a result, have found the structure of the present embodiment. That is, the present embodiment is a wire harness unit 10 attached to a case (attached member) 60, and is configured to include a wire harness 30 and a holder 40, wherein at least one covered electric wire 11 is fixed to a sheet-like base material 20 of the wire harness 30, and the holder 40 includes: a pair of clamping portions 50 for clamping the margin portions 34 of the holding base material 20, which are different from the portions to which the covered wires 11 are fixed; and a fitting portion 49 that is fitted to a fitting portion 67 provided in the case 60 in the left-right direction (direction intersecting the extending direction of the coated electric wire 11) and is locked to the fitting portion 67 in the front-rear direction (extending direction of the coated electric wire 11).

That is, according to the present embodiment, as shown in fig. 11, the margin portion 34 different from the portion to which the covered electric wire 11 is fixed is sandwiched and held by the pair of sandwiching portions 50. As shown in fig. 3 and 6, the fitting portion 49 is fitted to the fitted portion 67 of the case 60, and the wire harness unit 10 is attached to the case 60. Thus, for example, when the wire harness 30 is strongly stretched, a stretching force acts on the base material 20 of the wire harness 30, and the fastening member or the like does not sink into the covered wire as in the conventional case, so that the covered wire 11 of the wire harness 30 can be prevented from being damaged by another member.

The pair of clamping portions 50 of the present embodiment has a plurality of protrusions 54 protruding toward the margin portion 34, the plurality of protrusions 54 in one clamping portion 50 of the pair of clamping portions 50 and the plurality of protrusions 54 in the other clamping portion 50 of the pair of clamping portions 50 are alternately arranged, and the margin portion 34 is arranged to meander between the alternately arranged plurality of protrusions 54.

That is, since the margin portion 34 is disposed so as to meander between the plurality of protrusions 54 in the pair of sandwiching portions 50, when the wire harness 30 is stretched, the protrusions 54 are brought into a state of being sunk into the base material 20 of the margin portion 34, and the wire harness 30 can be prevented from falling off from the retainer 40. In addition, the holding force of the wire harness 30 in the retainer 40 can be improved.

Further, as shown in fig. 5, the retainer 40 further includes a pair of walls 42 connected to the pair of clamping portions 50 and arranged along the wire harness 30, hinges 43 for connecting the pair of walls 42 to each other are provided on upper end sides (one end sides) of the pair of walls 42, locking mechanisms 46 are provided on lower end sides (the other end sides) of the pair of walls 42 over the pair of walls 42, and the locking mechanisms 46 are held in a state where the margin portions 34 are clamped by the pair of clamping portions 50.

According to such a configuration, since the lock mechanism 46 holds the allowance portion 34 in a state of being sandwiched between the pair of sandwiching portions 50, the retainer 40 can be prevented from falling off the wire harness 30.

Further, according to the present embodiment, as shown in fig. 3 and 6, the fitting portion 49 is formed to protrude from the pair of walls 42, the case 60 has the holder accommodating portion (accommodating portion) 66, the holder 40 is accommodated in the holder accommodating portion (accommodating portion) 66 in a state where the margin portion 34 is sandwiched by the pair of sandwiching portions 50, and the fitted portion 67 recessed in accordance with the protruding dimension of the fitting portion 49 is formed on the inner wall 66A of the holder accommodating portion 66.

Therefore, by housing the retainer 40 in the retainer housing portion 66, the fitted portion 67 and the fitting portion 49 are fitted to each other, and the retainer 40 can be attached to the case 60. Further, since the margin portion 34 is held in a state of being sandwiched between the pair of sandwiching portions 50 by the pair of wall bodies 42 being housed in the holder housing portion 66, the margin portion 34 can be prevented from being detached from the pair of sandwiching portions 50 together with the lock mechanism 46.

Further, as shown in fig. 5, the retainer 40 further includes a retaining portion 44, and the retaining portion 44 is engaged with an upper edge portion 68U of a retaining hole 68 in a direction in which the retainer 40 is removed from the retainer housing 66 by being engaged with a retaining hole (a retained portion) 68 provided in the retainer housing 66 in a front-rear direction (a direction intersecting the extending direction of the coated electric wire 11) in a concave-convex manner.

The retaining portion 44 is further formed to protrude from the protruding end portion of the fitting portion 49, and the retaining hole 68 is further formed to penetrate the standing wall 64 while being recessed from the inner surface of the fitted portion 67.

That is, the upper edge portion 68U of the retaining hole 68 is locked to the retaining portion 44 in the vertical direction, so that the pair of walls 42 can be prevented from coming off the holder accommodating portion 66. This can prevent the wire harness unit 10 from falling off the holder housing portion 66 of the case 60.

< embodiment 2>

Next, embodiment 2 will be described with reference to fig. 18 to 20.

The wire harness unit 110 according to embodiment 2 is a wire harness unit in which the shape of the retainer 40 in the wire harness unit 10 according to embodiment 1 is changed, and the configuration, operation, and effect common to those of embodiment 1 are repeated, and therefore, the description thereof is omitted. The same reference numerals are used for the same components as those in embodiment 1.

As shown in fig. 18 to 20, the retainer 140 according to embodiment 2 is configured such that the support projections 41 on the inner surfaces 42A of the pair of walls 42 are not formed in embodiment 1. In other words, the holder 140 has a flat structure between the pair of sandwiching portions 50 on the inner surfaces 142A of the pair of walls 142.

Therefore, when the holder 140 is assembled to the wire harness 30, the wire harness 30 is arranged so that the margin portion 34 is sandwiched by the pair of sandwiching portions 50, but the pair of walls 142 and the wire fixing portion 32 are spaced apart in the left-right direction.

That is, even when the wire harness 30 is pulled rearward, for example, the wire fixing portion 32 of the wire harness 30 and the retainer 40 do not interact with each other, so that the covered wire 11 of the wire harness 30 can be further suppressed from being damaged by other members.

< other embodiment >

The technology disclosed in the present specification is not limited to the embodiments described above and illustrated in the drawings, and includes, for example, the following various embodiments.

(1) In the above embodiment, the wire harness 30 has a structure having six coated electric wires 11. However, the number of the coated electric wires in the wire harness is not limited to this, and five or more or seven or more coated electric wires may be provided, and the wire diameter of the coated electric wires may be arbitrarily changed.

(2) In the above embodiment, the wire harness 30 has a structure in which the plurality of covered electric wires 11 are sandwiched between the pair of base materials 20. However, the wire harness is not limited to this, and a plurality of covered wires may be fixed to one surface of one base material.

(3) In the above embodiment, the wire harness unit 10 is fixed to the case 60 by the retainer 40 being housed in the retainer housing portion 66 of the case 60. However, the present invention is not limited to this, and the following configuration may be adopted: the outer side surface of the holder is formed with a clip-shaped fitting portion, and the wire harness unit is fixed to the housing by fitting the fitting portion to a round hole-shaped fitting target portion provided in the housing.

(4) In the above embodiment, the lock mechanism 46 is formed in the pair of lower clamping portions 50 of the holder 40. However, the present invention is not limited to this, and the lock mechanism may be formed on the front side portion and the rear side portion of the holder. Further, when the worker assembles the harness unit into the box while holding the holder assembled to the harness, the locking mechanism may not be formed on the pair of walls.

Description of the symbols

10: wire harness unit

11: covered electric wire (an example of "electric wire")

20: base substrate

30: wire harness

34: margin part

40: retainer

42: wall body

43: hinge assembly

44: anti-drop part

46: locking mechanism

49: fitting part

50: clamping part

54: projection part

60: case body (an example of the component to be mounted)

66: holder storage section (an example of the storage section)

66A: inner wall

67: engaged part

68: anti-drop hole (an example of the anti-drop part)