JP2009131055A - Wire-harness exterior component and wire-harness assembly - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a wire-harness exterior component that has a superior fixing force and superior workability during binding. <P>SOLUTION: The wire-harness exterior component is provided with a band binding part 52a for fixing a wire harness 14 by a binding band 15. The band binding part 52a includes an L-shaped part 34, whose shape on the outer-face side has an almost L-shaped cross-section, and two insertion parts 31, 32 for holding a band part 17 of the binding band 15 by insertion. The first insertion part 31 is composed so as to hold a part near a buckle part 16 of the band part 17 by insertion. The two insertion parts 31, 32 are arranged near the corner of the L-shaped part 34 while being arranged on both sides across the corner. The insertion direction of the band part 17 with respect to the first insertion part 31 and that of the band part 17 with respect to the second insertion part 32 almost perpendicularly intersect with each other. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to an exterior component for protecting a wire harness and a wire harness assembly including the same.

  As a method for fixing a wire harness for an automobile to a panel of a vehicle body, there is a method using a resin binding band. This binding band has a configuration in which a buckle portion is provided at one end of the band portion and a lock hole is formed in the buckle portion. A claw is provided inside the lock hole, and when the band part is inserted into the lock hole, the band part is locked by engaging the claw with the irregularities formed on the surface of the band part. It has become.

For example, as shown in Patent Document 1, it has been conventionally performed to pass the binding band through an insertion portion of a resin component having an anchor portion and an insertion portion, and to wind and fix the wire harness. A comparative example corresponding to the configuration of Patent Document 1 will be described with reference to FIG. That is, the wire harness exterior component 10 of this comparative example has a configuration in which an insertion portion 11 is provided at an appropriate position of the exterior component main body, and an insertion hole 12 is formed in the insertion portion 11. The binding band 15 for fixing the wire harness 14 includes a buckle portion 16 and an elongated band portion 17 extending from the buckle portion 16. A lock hole 18 is formed in the buckle portion 16.
Japanese Patent Application Laid-Open No. 7-95714

  In the comparative example of FIG. 6, when the wire harness 14 to be bound is thick or when the number of the wire harnesses 14 is large, when the band portion 17 of the binding band 15 is inserted into the lock hole 18 of the buckle portion 16. The bent portion 70 needs to be bent largely before the buckle portion 16.

  Therefore, in such a case, it is difficult to insert the band portion 17 straight into the lock hole 18 of the buckle portion 16, and there is a problem in terms of workability.

  Further, since the band portion 17 forms the bent portion 70 immediately before the buckle portion 16, it is difficult to fix the wire harness 14 with a strong tightening force, which causes looseness due to loosening of the binding band 15. It was. In particular, when using a complex-shaped exterior part to protect the wire harness 14 or restrict its shape, the binding band 15 near the insertion portion 11 is used to securely hold the wire harness 14 in a specific posture. There has been a demand for minimizing the wobble of this, and there is still room for improvement in this respect.

  The present invention has been made in view of the above circumstances, and an object thereof is to provide an exterior part of a wire harness that can stably fix the wire harness with good workability.

Means and effects for solving the problems

  The problems to be solved by the present invention are as described above. Next, means for solving the problems and the effects thereof will be described.

  According to the viewpoint of this invention, the exterior components of the wire harness of the following structures are provided. That is, the exterior component of the wire harness includes an L-shaped portion whose outer surface side is substantially L-shaped in a cross section perpendicular to the longitudinal direction in the vicinity of the band binding portion included in the exterior component, and a buckle portion at one end of the band portion. A first insertion portion provided in the L-shaped portion for inserting and holding the buckle portion vicinity portion of the band portion in the binding band provided, and a first provided in the L-shaped portion for inserting and holding the band portion. 2 insertion parts.

  Thereby, the front-end | tip of a band part can be received with a 2nd insertion part, hold | maintaining the buckle part vicinity location of a band part with a 1st insertion part. Therefore, the positions of the buckle part and the band part can be stabilized, and the workability at the time of binding is improved.

  The exterior component of the wire harness preferably has the following configuration. That is, the first insertion portion and the second insertion portion are respectively disposed in the vicinity of the corner on the outside of the L-shaped portion, and are disposed on both sides across the corner. The insertion direction of the band part with respect to the first insertion part and the insertion direction of the band part with respect to the second insertion part intersect at substantially right angles.

  Accordingly, when the band portion of the binding band is inserted into the buckle portion (lock hole) of the binding band held by the first insertion portion, the band is inserted straight while being guided by the second insertion portion. Therefore, workability is improved. In addition, the wire harness can be pressed and fixed toward the inside of the corner of the L-shaped portion by positioning the buckle portion outside the corner of the L-shaped portion and tightening the binding band. Therefore, the wire harness can be stably fixed regardless of the outer diameter and the number of wire harnesses, and play and strong fixing force can be realized.

  In the exterior component of the wire harness, the lock hole included in the buckle portion is inserted in the state where the band portion is inserted into the first insertion portion and the buckle portion is in contact with the end surface of the first insertion portion. It is preferable that the position substantially coincides with the insertion hole of the second insertion portion.

  Accordingly, when using a binding band having a buckle portion of a specific size, when the binding band is inserted into the first insertion portion to the limit, the second insertion portion serves as a guide to the lock hole of the buckle portion, Workability at the time is further improved.

  The exterior component of the wire harness preferably has the following configuration. That is, the outer surface of the L-shaped portion includes a first surface and a second surface that are in contact with each other at a substantially right angle. The first insertion portion is disposed on the first surface, and the second insertion portion is disposed on the second surface. The first insertion portion includes a third surface that can contact the buckle portion. The second insertion portion includes a fourth surface that can contact the buckle portion. The first surface and the fourth surface are substantially flush.

  Thus, the buckle portion can be regulated so as not to be inclined by the fourth surface disposed substantially flush with the first surface. Thereby, since a buckle part can be hold | maintained in an appropriate attitude | position, the workability | operativity at the time of binding can further be improved.

  The exterior component of the wire harness preferably has the following configuration. That is, the outer surface of the L-shaped portion includes a first surface and a second surface that are in contact with each other at a substantially right angle. The first insertion portion is disposed on the first surface, and the second insertion portion is disposed on the second surface. The first insertion portion includes a third surface that can contact the buckle portion. The third surface is disposed offset with respect to the second surface. The offset distance OF is BA, the thickness of the band part is BA, the band side wall thickness of the lock hole provided in the buckle part is BB, the vertical width of the lock hole is BH, and the insertion hole vertical width of the second insertion part. When SH is SH, the relationship of BB + BA−SH ≦ OF ≦ BB + BH−BA is satisfied.

  Accordingly, by using a binding band having a predetermined buckle portion size, the position of the lock hole and the band portion are positioned in a natural positional relationship, and workability at the time of binding is further improved.

  In the exterior part of the said wire harness, it is preferable to provide a guide wall in the vicinity of the said 1st insertion part or the said 2nd insertion part.

  Thus, the insertion work is further facilitated by using the guide wall as the insertion guide. In addition, the binding band can be prevented from being wound obliquely with respect to the axis of the harness.

  According to another aspect of the present invention, there is provided a wire harness assembly including an exterior component of the wire harness, a wire harness, and a binding band that winds and fixes the exterior component of the wire harness and the wire harness together. Provided.

  Preferred embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is an external perspective view of a wire harness exterior component 51 according to an embodiment of the present invention.

  The wire harness exterior component 51 of FIG. 1 is for fixing the wire harness 14 along a predetermined wiring path formed by bending, and is configured by injection molding using an appropriate synthetic resin. Yes.

  The wire harness exterior component 51 includes a protective wall that covers and protects the outside of the wire harness 14 and regulates the path (shape) of the wire harness 14. In addition, an engagement protrusion (anchor portion) 50 is integrally formed on the wire harness exterior component 51, and the wire harness exterior component 51 can be attached to an automobile frame or the like by the engagement protrusion 50.

  In the wire harness exterior component 51, band binding portions 52a and 52b are formed at one end on each end of the wire harness path formed by the wire harness exterior component 51. The band binding portions 52a and 52b are for fixing the wire harness 14 using a binding band not shown in FIG.

  Next, a detailed configuration of the band binding portions 52a and 52b will be described. Although two band binding portions 52a and 52b are provided as described above, since the two band binding portions 52a and 52b have substantially the same configuration, only one of them will be described below as a representative. FIG. 2 is an enlarged perspective view showing the band binding portion 52a.

  As shown on the lower side of FIG. 2, the band binding portion 52a includes an L-shaped portion 34 having a substantially L-shaped cross section. The L-shaped part 34 is formed so as to be connected to the protective wall of the wire harness exterior component 51.

  As shown in the drawing, the outer surface of the L-shaped portion 34 is mainly constituted by a first surface 41 and a second surface 42 that are in contact with each other at a substantially right angle. The 1st surface 41 and the 2nd surface 42 are each formed flat, and it is comprised so that the below-mentioned binding band can be wound.

  Further, two binding band insertion portions are disposed on the outer surface of the L-shaped portion 34. Specifically, a first insertion portion 31 is provided on the first surface 41, and a second insertion portion 32 is provided on the second surface 42.

  The first insertion part 31 and the second insertion part 32 are each arranged in the vicinity of the corner of the L-shaped part 34. The two insertion portions 31 and 32 are disposed on both sides of the corner of the L-shaped portion 34.

  The first insertion part 31 is formed with a penetrating insertion hole 39. A third surface 43 is formed on the surface of the first insertion portion 31 that faces the corner of the L-shaped portion 34. Similarly, a penetrating insertion hole 40 is formed in the second insertion portion 32. A fourth surface 44 is formed on the surface of the second insertion portion 32 that faces the corner of the L-shaped portion 34.

  The two insertion holes 39 and 40 are formed in a square hole shape and are formed at right angles to each other. The third surface 43 and the fourth surface 44 are formed to be connected to each other at a right angle. Further, in the present embodiment, the fourth surface 44 is disposed so as to be substantially flush with the first surface 41, and the third surface 43 is disposed offset from the second surface 42 by a predetermined offset amount. Has been.

  The guide wall 71 is formed so as to extend from each of the first insertion portion 31 and the second insertion portion 32 along the band installation position. The surface of the guide wall 71 in contact with the binding band coincides with one of the left and right inner wall surfaces of the first insertion portion 31 and the second insertion portion 32, and is configured to be smoothly connected to each other. Thereby, the position of the below-described binding band can be effectively regulated by the guide wall 71.

  Next, with reference to FIGS. 2 to 4, the operation of fixing the wire harness 14 through the binding band to the band binding portion 52a will be specifically described. 3 is a perspective view showing a state when the binding band 15 is inserted through the insertion portions 31 and 32 of the band binding portion 52a, and FIG. 4 is a cross-sectional view taken along the line AA in FIG.

  In this embodiment, in order to fix the wire harness 14, the binding band 15 having the same configuration as that of the conventional technique (FIG. 6) described above is used. As shown in the upper side of FIG. 2, the binding band 15 is configured by integrally forming a block-shaped buckle portion 16 and a flexible band portion 17 extending from the buckle portion 16 with a synthetic resin. Has been.

  The buckle portion 16 is formed with a lock hole 18 for locking the band portion 17. The lock hole 18 is formed in a direction perpendicular to the longitudinal direction of the band portion 17 (thickness direction of the band portion 17). A claw (not shown) is disposed inside the lock hole 18. When the tip of the band portion 17 is inserted into the lock hole 18, the claw engages with the band portion 17 and can be locked so as not to come off. it can.

  In order to fix the wire harness exterior component 51 to the wire harness 14 with the above configuration, the following operation is performed. That is, first, the wire harness exterior component 51 is disposed at a predetermined location of the wire harness 14 and set so that the wire harness 14 is positioned inside the L-shaped portion 34. Next, the binding band 15 is attached to the band binding portion 52a. Specifically, as shown by the arrow in FIG. 2, the band portion 17 is inserted into the insertion hole 39 of the first insertion portion 31 (from the corner side of the L-shaped portion 34). Then, the band portion 17 of the binding band 15 is inserted until the buckle portion 16 comes into contact with the third surface 43 (that is, up to the limit).

  Thereby, the buckle part 16 of the binding band 15 can be held in a state of being positioned at a predetermined position. Specifically, the buckle portion 16 in the vicinity of the buckle portion 16 of the band portion 17 is inserted and held in the first insertion portion 31, so that the buckle portion 16 is placed on the fourth surface 44 of the second insertion portion 32. Located to face each other. Further, when the third surface 43 comes into contact with the buckle portion 16, the buckle portion 16 is positioned so that the lock hole 18 coincides with the insertion hole 40 of the second insertion portion 32.

  More specifically, in the present embodiment, as described above, the second insertion portion 32 is disposed so that the fourth surface 44 is substantially flush with the first surface 41. Therefore, the band portion 17 inserted through the first insertion portion 31 is guided by the insertion hole 39 and the first surface 41, so that the buckle portion 16 comes into contact with or approaches the fourth surface 44. . Therefore, the inclination of the buckle portion 16 is prevented by the fourth surface 44 (and the third surface 43), and the process of later inserting the band portion 17 into the buckle portion 16 (lock hole 18) becomes smooth.

  Next, the band portion 17 is wound around the outer surface of the L-shaped portion 34 and the outer periphery of the wire harness 14, and the tip of the band portion 17 is inserted into the insertion hole 40 of the second insertion portion 32. At this time, by inserting and sliding the edge portion in the width direction of the band portion 17 in contact with the guide wall 71, the position and the insertion direction of the band portion 17 are appropriately guided, and the insertion work into the insertion hole 40 is performed. It becomes easier. Further, as described above, since the insertion hole 40 coincides with the lock hole 18 of the buckle part 16, the tip of the band part 17 that has passed through the insertion hole 40 is immediately inserted into the lock hole 18 so as not to come off. Locked. This state is shown in FIG.

  Further, the guide wall 71 serves as a guide to restrict the position of the band portion 17, so that the band portion 17 is detached from the first surface 41 and the second surface 42 (which is wound obliquely rather than perpendicularly to the axis of the wire harness 14. ), Preventing the wire harness 14 from being pressed directly.

  3, the wire harness 14 is pressed against and fixed to the inner surface of the L-shaped portion 34 by the binding band 15 by manually pulling the tip of the band portion 17 that has passed through the lock hole 18 (A in FIG. 3). (See FIG. 4 as a cross-sectional arrow view of A). Thus, the bundling operation is completed, and the wire harness assembly having the configuration in which the wire harness exterior component 51 and the wire harness 14 are wound together by the bundling band 15 is completed.

  As described above, the wire harness exterior component 51 of the present embodiment includes the band binding portions 52a and 52b. The wire harness exterior component 51 includes an L-shaped portion 34 whose outer surface is substantially L-shaped in a cross section orthogonal to the longitudinal direction in the vicinity of the band binding portions 52a and 52b, and the L-shaped portion 34. The first insertion part 31 and the second insertion part 32 are provided. Each of the insertion portions 31 and 32 is configured to insert and hold the band portion 17 of the binding band 15. Further, the portion where the first insertion portion 31 inserts and holds the band portion 17 is a portion in the vicinity of the buckle portion 16.

  Thereby, the front end of the band part 17 can be received by the second insertion part 32 while holding the vicinity of the buckle part 16 of the band part 17 by the first insertion part 31. Therefore, the positions of the buckle portion 16 and the band portion 17 can be stabilized, and workability at the time of binding is improved.

  Further, in the wire harness exterior component 51 of the present embodiment, the first insertion portion 31 and the second insertion portion 32 are respectively disposed in the vicinity of the outer corners of the L-shaped portion 34 and sandwich the corners. Located on both sides. In addition, the insertion direction of the band portion 17 with respect to the first insertion portion 31 (direction of the insertion hole 39) and the insertion direction of the band portion 17 with respect to the second insertion portion 32 (direction of the insertion hole 40). Crosses at right angles.

  Thereby, in a state where the binding band 15 is held by the first insertion portion 31, the band portion 17 inserted through the second insertion portion 32 is inserted straight into the lock hole 18 of the buckle portion 16 of the binding band 15. It becomes easy. In particular, as apparent from the comparison of FIG. 3 with the comparative example of FIG. 6, even when the thick wire harness 14 is bundled, in this embodiment, the buckle portion 16 is not bent greatly before the buckle portion 16. The lock hole 18 can be inserted straight. Further, since the buckle portion 16 is held outside the corner of the L-shaped portion 34, when the binding band 15 is tightened, the wire harness 14 is firmly pressed inside the corner of the L-shaped portion 34 to prevent backlash. A strong fixing force can be realized.

  Further, in the wire harness exterior component 51 of the present embodiment, the band portion 17 is inserted into the first insertion portion 31, and the buckle portion 16 is attached to the end surface (third surface 43) of the first insertion portion 31. In the contacted state, the position of the lock hole 18 provided in the buckle portion 16 is configured to substantially coincide with the insertion hole 40 of the second insertion portion 32.

  Thereby, when using the binding band 15 having the buckle portion 16 of a specific size, when the band portion is inserted into the first insertion portion 31 to the limit, the insertion hole 40 of the second insertion portion 32 is locked with the lock. It becomes a guide to the hole 18. Therefore, workability at the time of binding is further improved.

  In the present embodiment, the outer surface of the L-shaped portion 34 of the wire harness exterior component 51 includes a first surface 41 and a second surface 42 that are in contact with each other at a substantially right angle. The first insertion portion 31 is disposed on the first surface 41 and includes a third surface 43 in contact with the buckle portion 16. The second insertion part 32 is arranged on the second surface 42 and includes a fourth surface 44 that contacts the buckle part 16. And the 1st surface 41 and the 4th surface 44 are arrange | positioned so that it may become substantially flush.

  Accordingly, the fourth surface 44 disposed substantially flush with the first surface 41 can be regulated so that the posture of the buckle portion 16 does not tilt. Thereby, since the buckle part 16 can be hold | maintained in an appropriate attitude | position, the workability | operativity at the time of binding can further be improved.

  Further, the wire harness exterior component 51 of this embodiment includes a guide wall 71 in the vicinity of the first insertion portion 31 and the second insertion portion 32.

  Thereby, the insertion work of the binding band 15 becomes easy by using the guide wall 71 as an insertion guide. Further, the binding band 15 can be prevented from being wound obliquely with respect to the axis of the wire harness 14.

  Next, the positional relationship between the third surface 43 and the second surface 42 will be described. As described above, the third surface 43 is disposed with a predetermined distance from the second surface 42. This offset distance is determined according to the size of the buckle portion 16 of the binding band 15. Specifically, as shown in FIG. 4, when the band portion 17 of the binding band 15 is inserted through the insertion hole 40 of the second insertion portion 32, the offset portion OF is exactly the same as the buckle portion. It is determined to pass through 16 lock holes 18. That is, the offset distance OF is determined so that the insertion hole 40 of the second insertion part 32 substantially coincides with the lock hole 18 of the buckle part 16.

  Next, with reference to FIG. 5, a condition to be satisfied by the offset distance (the offset distance OF) of the third surface 43 with respect to the second surface 42 will be specifically described. FIG. 5 is an enlarged cross-sectional view of the vicinity of the first insertion portion 31, the second insertion portion 32, and the buckle portion 16 held by them.

  FIG. 5A shows a state immediately before the tip of the band portion 17 is inserted into the insertion hole 40 of the second insertion portion 32 and the lock hole 18 of the buckle portion 16. As shown in FIG. 5A, the distance from the outer surface of the buckle portion 16 that contacts the third surface 43 to the edge of the lock hole 18 is BB, and the band portion 17 inserted into the lock hole 18 The thickness of the tip is BA, and the width of the insertion hole 40 in the thickness direction of the tip of the band portion 17 is SH.

  In the case of FIG. 5A, in order for the tip of the band portion 17 to be inserted into the insertion hole 40 and the lock hole 18 at the same time, between the ceiling surface of the insertion hole 40 and the lower edge of the lock hole 18. The gap G <b> 1 that occurs in the band portion 17 must be equal to or greater than the thickness of the tip of the band portion 17 (G <b> 1 ≧ BA). Since OF + SH = BB + G1 from the relationship shown in FIG. 5A, the offset distance OF needs to satisfy the relationship OF ≧ BB + BA−SH.

  Similarly, FIG. 5B shows a state immediately before the tip of the band portion 17 is inserted into the insertion hole 40 and the lock hole 18. However, in the configuration of FIG. 5B, the offset distance OF is set larger than that of FIG. As shown in FIG. 5B, the width of the lock hole 18 in the thickness direction at the tip of the band portion 17 is BH.

  In the case of FIG. 5B, the band portion 17 is formed between the second surface 42 and the upper edge of the lock hole 18 so that the tip of the band portion 17 can be inserted into the insertion hole 40 and the lock hole 18 at the same time. The gap G2 must be equal to or greater than the thickness of the tip of the band portion 17 (G2 ≧ BA). Since OF + G2 = BH + BB from the relationship shown in FIG. 5B, the offset distance OF needs to satisfy the relationship OF ≦ BB + BH−BA.

  In this regard, in the wire harness exterior component 51 of the present embodiment, the offset distance OF is set so as to satisfy the relationship of BB + BA−SH ≦ OF ≦ BB + BH−BA. Therefore, the lock hole 18 of the buckle portion 16 becomes coincident with the insertion hole 40 of the second insertion portion 32, and the working efficiency when passing the band portion 17 can be improved.

  Although the preferred embodiment of the present invention has been described above, the above configuration can be modified as follows, for example.

  The L-shaped portion 34 only needs to have a substantially L-shaped outer surface side in the vicinity of the band binding portion, and the inner surface shape and the outer surface side shape other than the vicinity of the band binding portion are not particularly limited. For example, the configuration of the present invention can be applied to a wire harness exterior component having a substantially F-shaped cross section.

  The fourth surface 44 may be slightly offset from the first surface 41 instead of being substantially flush with the first surface 41. However, from the viewpoint of holding the buckle portion 16 in an appropriate posture by the fourth surface 44, it is preferable to be substantially flush with the first surface 41.

  The number of band binding portions provided in the wire harness exterior component 51 may be one instead of two as in the above embodiment, or may be configured to include three or more band binding portions. .

  The configuration of the band binding portion is not limited to the wire harness exterior component 51 that regulates the wire harness 14 along a curved path as shown in FIG. 1, and can be applied to, for example, a wire harness exterior component having a linear path. it can.

  The guide wall 71 can be omitted. However, it is preferable to provide the guide wall 71 from the viewpoint of facilitating the insertion work of the binding band 15 by the guide wall 71 and preventing the binding band 15 from being obliquely wound around the wire harness 14.

  Further, the guide wall 71 may be on one side of the binding band 15 or on both sides. However, when the band binding portion is at the end portion of the wire harness exterior component 51 as in the present embodiment, it is preferable that the guide wall 71 is provided at least on the end portion side. Thereby, it can prevent that the binding band 15 remove | deviates from the wire harness exterior component 51, and is wound.

The external appearance perspective view which shows the whole exterior component of the wire harness which concerns on one Embodiment of this invention. The expansion perspective view which shows the band binding part of the exterior components of a wire harness. The perspective view which shows a mode that the binding band was attached to the band binding part and the wire harness was fixed. AA sectional drawing in FIG. Sectional drawing which showed the relationship of the offset distance with respect to the 2nd surface of the 3rd surface. The external appearance perspective view which shows the band binding part of the exterior components of the wire harness which concerns on a prior art (comparative example).

Explanation of symbols

DESCRIPTION OF SYMBOLS 14 Wire harness 15 Binding band 16 Buckle part 17 Band part 31 1st insertion part 32 2nd insertion part 34 L-shaped part 39 Insertion hole of 1st insertion part 40 Insertion hole of 2nd insertion part 41 1st surface 42 2nd surface 43 3rd surface 44 4th surface 50 Engagement protrusion 51 Wire harness exterior parts 52a, 52b Band binding part 71 Guide wall OF Offset distance

Claims (7)

It is an exterior part of a wire harness provided with a band binding part,
In the cross section perpendicular to the longitudinal direction in the vicinity of the band binding portion, the L-shaped portion whose outer surface side is substantially L-shaped,
A first insertion part provided in the L-shaped part for inserting and holding the vicinity of the buckle part of the band part in a binding band provided with a buckle part at one end of the band part;
A second insertion part provided in the L-shaped part to insert and hold the band part;
An exterior part of a wire harness, comprising: The exterior component of the wire harness according to claim 1,
The first insertion part and the second insertion part are each arranged in the vicinity of an outer corner of the L-shaped part and arranged on both sides across the corner,
An exterior component of a wire harness, wherein an insertion direction of the band portion with respect to the first insertion portion and an insertion direction of the band portion with respect to the second insertion portion intersect at substantially right angles. The exterior component of the wire harness according to claim 1 or 2,
The band portion is inserted into the first insertion portion, and the position of the lock hole provided in the buckle portion is inserted into the second insertion portion in a state where the buckle portion is in contact with the end surface of the first insertion portion. An exterior part of a wire harness characterized by substantially matching with a hole. It is an exterior component of the wire harness according to any one of claims 1 to 3,
The outer surface of the L-shaped portion includes a first surface and a second surface that are substantially perpendicular to each other,
The first insertion portion is disposed on the first surface;
The second insertion portion is disposed on the second surface;
The first insertion part includes a third surface that can contact the buckle part,
The second insertion part includes a fourth surface that can contact the buckle part,
The exterior part of a wire harness, wherein the first surface and the fourth surface are substantially flush with each other. It is the exterior component of the wire harness according to any one of claims 1 to 4,
The outer surface of the L-shaped portion includes a first surface and a second surface that are substantially perpendicular to each other,
The first insertion portion is disposed on the first surface;
The second insertion portion is disposed on the second surface;
The first insertion part includes a third surface that can contact the buckle part,
The third surface is disposed offset from the second surface;
This offset distance OF is
The distance from the outer surface of the buckle part contacting the third surface to the edge of the lock hole provided in the buckle part is BB,
The thickness of the tip of the band part inserted into the lock hole is BA,
The width of the insertion hole of the second insertion part in the thickness direction of the tip of the band part is SH,
When the width of the lock hole in the thickness direction of the tip of the band portion is BH,
BB + BA−SH ≦ OF ≦ BB + BH−BA
An external part of a wire harness characterized by satisfying the above relationship. It is the exterior component of the wire harness according to any one of claims 1 to 5,
A wire harness exterior component comprising a guide wall in the vicinity of the first insertion portion or the second insertion portion. The exterior component of the wire harness according to any one of claims 1 to 6,
A wire harness,
The binding band for winding and fixing together the exterior component of the wire harness and the wire harness;
A wire harness assembly comprising:

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