JP2018042390A - Protector and wiring harness - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a protector which protects a branch connection of a wiring harness, and can simplify a fixing work by reducing a fixed place.SOLUTION: A protector 20 that protects a branch connection 14 of a wiring harness 10, comprises: cylinder protection members 21 and 22 that cover a trunk line part 12 on both sides of the branch connection 14; a plate-like protection member 23 that is over between the cylinder protection members 21 and 22 along the trunk line part 12 and a branch line part 13; and binding members 24 and 25 that are projected to one side of a trunk line radial direction from the plate-like protection member 23 on both sides of the branch connection 14. The plate-like protection member 23 includes lock parts 26 and 27 that lock and prevent the binding members 24 and 25 from coming off on both sides of the branch connection 14. In a state where tip parts 24b and 25b of the binding members 24 and 25 are locked and prevented from coming off by the lock parts 26 and 27, the cylinder protection members 21 and 22 are tightened and fixed to the trunk line part 12 of both sides of the branch connection 14. The plate-like protection member 23 is fixed to the branch connection 14 in a predetermined attitude.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a protector and a wire harness, and more particularly to a protector that protects the vicinity of a branching portion where a branch line emerges from a trunk line of the wire harness and a wire harness including the protector.

  Conventionally, in a wire harness for a vehicle, a corrugated tube or the like that is a cylindrical protective member is often used to protect an electric wire, but in that case, in the vicinity of a branch portion where a branch line comes out from a trunk line of the wire harness, A protector having a branch protection function is often used.

  As a conventional protector of this type, for example, a main line side protection plate straddling both sides of the branch portion, a branch line side protection plate extending along the branch line, and a flexible member for connecting the branch line side protection plate to the main line side protection plate. And connecting both ends of the trunk-side protection plate to the corrugated tube on both sides of the branch portion with tape, and fixing the branch-side protection plate to the corrugated tube covering the branch portion with tape Is known (see, for example, Patent Document 1).

  Further, a corrugated tube with slits is provided by providing a corrugated tube guide portion comprising a convex portion or a concave portion on the outer surface of at least the trunk side portion of the both-side sandwiching portion of the protector that sandwiches the trunk line and the branch line of the T-shaped branch of the wire harness. It is also known that each of the divided edges is attached to the guide portion so that the corrugated tube can be externally attached to the trunk line while moving the corrugated tube (see, for example, Patent Document 2).

JP 2016-140226 A JP 2012-210043 JP

  However, in the above-described conventional protector and wire harness, both ends of the trunk side portion of the protector are taped and fixed to the corrugated tubes on both sides of the branch portion, and further, to the corrugated tube covering the branch line portion. There is a problem that it is necessary to fix the branch side portion of the protector with a tape, and it takes time to fix the protector.

  On the other hand, as shown in FIG. 5, for example, a flat protective plate 3 is provided across the corrugated tubes 1 and 2 on both sides along the branch portion H1c from which the branch line H1b extends from the trunk line H1a of the wire harness H1. It is conceivable to reduce the number of tape winding fixing points by performing so-called cross tape winding fixing with the adhesive binding tape 4 on the protective plate 3.

  However, even if the number of tape winding fixing portions is reduced as described above, the flat plate is attached to the corrugated tubes 1 and 2 on both sides of the branch portion H1c while the branch portion H1c and the protective plate 3 of the wire harness H1 are gripped simultaneously. The protective plate 3 must be overlapped in two directions intersecting and fixed with tape, and the tape winding and fixing work becomes difficult.

  Therefore, the present invention is a protector that protects a branch portion of a wire harness, has a small number of fixing points to the wire harness side, and can facilitate the fixing work, and a wire harness having the same and having good exterior workability The purpose is to provide.

  In order to achieve the above object, the protector according to the present invention is a protector that protects a branch portion from which a branch line emerges from the trunk line of the wire harness, and covers the trunk line on both sides of the branch portion in the length direction of the trunk line. And the other tubular protective member, the plate-like protective member straddling between the one and other tubular protective members along the trunk line and the branch line in the vicinity of the branch portion, and the lengthwise direction of the trunk line One and the other binding member coupled to the plate-like protective member on the base end side so as to protrude from one side of the plate-like protective member to one side in the radial direction of the trunk line on both sides of the branch part, The plate-like protection member has one and the other lock portions for locking and stopping the tip portions of the one and the other binding members on both sides of the branch portion in the length direction of the trunk line, The one and the other tubular protective members are fastened and fixed to the trunk line on both sides of the branching portion in a state in which the distal end portions of the one and the other binding members are respectively retained and locked by the one and the other lock portions. And the plate-like protection member is fixed to a predetermined posture for protecting the branch portion with respect to the branch portion.

  With this configuration, when the one and the other binding members are retained and locked by the one and the other lock portions, respectively, the one and the other cylindrical protective members are fastened and fixed to the trunk lines on both sides of the branch portion, and the plate The shape protection member is fixed in a predetermined posture with respect to the branch portion. Accordingly, the number of fixing points to the wire harness side is small as two by one and the other binding member, and the fixing work can be facilitated.

  In the protector of the present invention, the one and the other binding members may be constituted by flexible bands integrally joined to the plate-like protective member on the respective base end sides.

  In the protector of the present invention, the plate-like protection member and the one and the other binding members may be made of the same kind of synthetic resin.

  The wire harness which concerns on this invention is a wire harness with a protector which has the said branch part with which any one of said protectors was mounted | worn.

  With this configuration, when the one and the other binding members are retained and locked by the one and the other lock portions, respectively, the one and the other cylindrical protective members are fastened and fixed to the trunk lines on both sides of the branch portion, and the plate The shape protection member is fixed in a predetermined posture with respect to the branch portion. Therefore, the number of places where the protector is fixed to the electric wire side is small as two places by the one and the other binding members, and the wire harness can facilitate the fixing work.

  According to the present invention, there is provided a protector that protects a branch portion of a wire harness, has few fixing points to the wire harness side, and can facilitate the fixing work, and a wire harness including the protector. it can.

It is a principal part perspective view which shows the plate-shaped protection member in the protector which concerns on one embodiment of this invention, and one and the other binding member integrally joined to it. It is a principal part front view of the wire harness of the semi-finished product state with which the one and other cylindrical protection members in the protector which concerns on one embodiment of this invention were mounted | worn with the trunk line of the both sides of a branch part. It is a principal part front view of the wire harness with a protector which concerns on one embodiment of this invention. FIG. 4 is a cross-sectional view taken along arrow IV-IV in FIG. 3. It is a principal part front view of the wire harness with a protector of the comparative example which includes the unsolved subject although the tape fixing location can be reduced with respect to a prior art.

  Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings.

(One embodiment)
1 to 4 show a protector according to an embodiment of the present invention and a wire harness with a protector to which the protector is attached.

  The wire harness 10 according to the present embodiment shown in an enlarged manner in FIG. 3 and FIG. 4 is obtained by attaching a plurality of connection terminals (not shown) to a plurality of electric wires 11 and inserting the connection terminals into a connector (not shown). It is configured so that the electrical equipment mounted on the can be connected to its power source, control equipment, and the like.

  As shown in FIG. 2, the wire harness 10 includes a trunk portion 12 composed of a plurality of insulated wires 11, and branches branched out from the trunk portion 12 in a direction crossing the axis. The branch part 14 is formed by branching the branch line part 13 from the main line part 12.

  Although the details of the plurality of electric wires 11 are not shown, each core wire is surrounded by a flexible tube-like coating, and the core wire is constituted by, for example, a circular stranded wire, and the coating is made of, for example, polyvinyl chloride Alternatively, it is made of a synthetic resin mainly composed of polyethylene or the like.

  The trunk portion 12 includes, for example, an electric wire 11 that extends straight in the left-right direction in FIGS. 2 and 3, and extends into the branch portion 14 from the left side in both drawings, and in the branch portion 14 from the trunk portion 12 side to the branch portion 13. A plurality of at least two types of the electric wire 11 bent to the side and the electric wire 11 bent from the branch line part 13 side to the main line part 12 side in the branch part 14 and extending from the branch part 14 to the right side in both figures. The electric wire 11 is comprised.

  The branch line portion 13 extends, for example, from the left end side in FIGS. 2 and 3 into the branch portion 14 and bends upward in the branch portion 14 from the trunk portion 12 side to the branch line portion 13 side in both drawings. And a plurality of electric wires 11 of at least one of the electric wires 11 extending from the upper end side in both drawings into the branching portion 14 and extending in the branching portion 14 to the right side in both drawings.

  And the some electric wire 11 which comprises these trunk line part 12 and branch line part 13 is respectively bound by the adhesive binding tape 15 grade | etc.,.

  As shown in FIG. 3, a protector 20 made of synthetic resin is attached to the main line portion 12 and the branch portion 14 of the wire harness 10.

  As shown in FIGS. 1 to 4, this protector 20 is composed of, for example, flexible one and other cylindrical protective members 21, 22 made of a corrugated tube, and one side of the branch portion 14. A substantially rectangular flat plate-shaped protective member 23 located on the side, and one and the other cylindrical protective members 21 and 22 are provided corresponding to one and the other cylindrical protective members 21 and 22. And one or the other bundling members 24 and 25 that are elastic or flexible.

  One and the other cylindrical protective members 21 and 22 cover the trunk line 12 on both sides of the branch part 14 in the length direction of the trunk line 12, and are separated from each other by a predetermined gap g in the length direction of the trunk line 12. Yes.

  As shown in FIG. 3, the plate-shaped protection member 23 is formed in, for example, a substantially rectangular flat plate shape, and one and the other cylindrical protection members 21 are along the main line portion 12 and the branch line portion 13 near the branch portion 14. , 22 and the branch portion 14 is covered from one side which is the vehicle body panel side. Therefore, the length L of the plate-like protective member 23 in the length direction of the main line portion 12 is larger than the predetermined gap g between the one and the other cylindrical protective members 21 and 22, and the plate shape in the radial direction of the main line portion 12. The width W of the protection member 23 is larger than the outer diameter of the main line portion 12.

  As shown in FIGS. 1, 3, and 4, the one and the other binding members 24, 25 are on both sides of the branch portion 14 in the length direction of the trunk portion 12 and on the one side 23 c side of the plate-like protection member 23. It arrange | positions and protrudes in the strip | belt shape or string form from the one side 23a of the electric wire side (henceforth inner side) of the plate-shaped protection member 23 to the radial direction one side (left direction in FIG. 4) of the trunk line part 12.

  These one and the other binding members 24 and 25 are integrally formed with the plate-like protection member 23 and are integrally coupled to the plate-like protection member 23 on the respective base end portions 24a and 25a side. However, after the one and the other binding members 24 and 25 are molded separately from the plate-like protective member 23, the plate-like protective member 23 is formed by any known coupling method on the respective base end portions 24a and 25a side. It may be integrally coupled to.

  The plate-like protective member 23 is also provided with one and the other binding members on both sides of the branching portion 14 in the length direction of the trunk line portion 12 and on the side 23d side opposite to the one side 23c side of the plate-like protective member 23. The front and rear end portions 24b and 25b of 24 and 25 can be inserted respectively, and have one and the other lock portions 26 and 27 that can be retained and locked at the inserted depth position.

  And the one and the other cylindrical protection members 21 and 22 are in the state where the leading end portions 24b and 25b of the one and the other binding members 24 and 25 are locked and stopped by the one and the other lock portions 26 and 27, respectively. The plate-like protective member 23 is fixed to the branch portion 14 in a predetermined posture that protects the branch portion 14 from one side while being fastened and fixed to the trunk portion 12 on both sides of the branch portion 14. .

  In addition, the detachment locking structure of the concave and convex portions 24c and 25c for locking the binding of the one and other binding members 24 and 25 by the one and other lock portions 26 and 27 is employed in various conventional binding bands. The detailed explanation is omitted here.

  Specifically, the one and the other binding members 24 and 25 are configured as flexible bands integrally coupled to the plate-like protection member 23 on the respective base end portions 24a and 25a side.

  Further, the plate-like protection member 23 and the one and other binding members 24 and 25 are each formed of the same kind of synthetic resin, for example, a synthetic resin such as polypropylene or nylon resin.

  Further, the one and the other binding members 24, 25 are, for example, on one side that becomes the inner peripheral surface or the outer peripheral surface at the time of binding for fixing the cylindrical protective members 21, 22 on the main line portion 12, for example, on the inner peripheral surface side, It has serration-like (saw blade-like) concavo-convex portions 24c and 25c (see FIGS. 1 and 4) for locking the bundle, and the tip portions 24b and 25b are narrow and thin. The one and the other binding members 24 and 25 are inserted into the one and the other lock portions 26 and 27 from the front end portions 24b and 25b side, respectively, and are latched and locked.

  The vicinity of the front end portions 24b and 25b of the one and the other binding members 24 and 25 inserted into the one and the other lock portions 26 and 27 has a predetermined protruding height from the one surface 23b on the outer side of the plate-like protective member 23. It has been cut to limit it below the value. Further, before the cutting, the protruding portions of the one and the other binding members 24 and 25 are pulled out to the tightening side of the one and the other cylindrical protection members 21 and 22 with respect to the plate-like protection member 23, and so on. The other cylindrical protective members 21 and 22 are fastened and fixed to the main line portion 12 on both sides of the branch portion 14, and the plate-shaped protective member 23 is in a predetermined posture as shown in FIGS. 3 and 4 with respect to the branch portion 14. It is fixed.

  The plate-like protection member 23 of the protector 20 in the present embodiment is a protection plate that protects the branch portion 14 of the wire harness 10 from the vehicle body panel side outside the figure, and is provided by one and the other cylindrical protection members 21 and 22. By interposing between the uncovered branch part 14 and the vehicle body panel, the function of protecting the branch part 14 from burrs and other protrusions on the vehicle body panel side is exhibited.

  Next, the operation will be described.

  In the protector 20 and the protector-equipped wire harness 10 of the present embodiment configured as described above, the tip portions 24b and 25b of the one and the other binding members 24 and 25 are inserted into the one and the other lock portions 26 and 27, respectively. Then, after the one and the other binding members 24 and 25 are tightened with respect to the one and the other cylindrical protection members 21 and 22, the one and the other lock members 26 and 27 are locked to be detached.

  At this time, the vicinity of the end portions of the one and the other cylindrical protection members 21 and 22 located in the axial range overlapping the plate-like protection member 23 is connected to the trunk portion 12 on both sides of the branching portion 14. The plate-like protective member 23 that is fixed in a tightened state by the binding members 24 and 25 and that is integral with the one and the other binding members 24 and 25 is connected to the branch portion 14 with respect to the burr on the vehicle body panel side. It is fixed in a predetermined posture that can be accurately protected from protrusions.

  Therefore, the number of places where the wire harness 10 is fixed to the wire bundle side can be reduced to two places by the one and the other binding members 24, 25, and the fixing operation is performed to the extent that the one and the other binding members 24, 25 are tightened. It becomes the protector 20 which can be made easy to work.

  In addition, in this embodiment, the one and the other binding members 24 and 25 are constituted by flexible bands integrally joined to the plate-like protection member 23 on the respective base end portions 24a and 25a side. The bundling workability of one and the other bundling members 24 and 25 is good.

  Furthermore, in this embodiment, since the plate-shaped protection member 23 and the one and the other binding members 24 and 25 are each made of the same type of synthetic resin, the one and the other binding members 24 and 25 are replaced with the plate-shaped protection member. It is possible to reduce the cost by integrally molding with 23.

  In the wire harness 10 having the branch portion 14 to which the protector 20 of the present embodiment is attached, the protector 20 is fixed to the wire bundle side including the plurality of electric wires 11 at two locations by one and the other binding members 24 and 25. In addition, the fixing work can be facilitated.

  Thus, in this embodiment, it is the protector 20 which protects the branch part 14 of the wire harness 10, and there are few fixing parts to the wire harness 10 side, and the protector 20 which can facilitate the fixing operation is provided. It is possible to provide the wire harness 10 with the exterior workability with the protector 20 attached to the branch portion 14.

  In the above-described embodiment, the plate-like protection member 23 is a flat plate having a constant thickness. However, the branch-side edge portion of the plate-like protection member 23 adjacent to the branch line portion 13 is thin and flexible. Or a plate-like protective member that is appropriately curved according to the shape of the outer peripheral surface of the wire bundle.

  In the above-described embodiment, each of the one and the other binding members 24 and 25 has a free shape that protrudes linearly from the plate-like protection member 23, but has a curved shape close to the curved shape at the time of binding. It may be molded and the bending angle at the time of binding at the base end portions 24a and 25a may be suppressed.

  Furthermore, in the above-described embodiment, the one and the other binding members 24 and 25 are each constituted by one piece, but may be divided into a plurality of pieces on the base end portions 24a and 25a side. Even in this case, it is preferable that the distal end portions 24b and 25b of the one and other binding members 24 and 25 are locked at two places.

  Further, in the above-described embodiment, the base end portions 24a and 25a of the one and the other binding members 24 and 25 and the one and the other lock portions 26 and 27 are the one side 23c side of the plate-like protection member 23. Although they are arranged apart from the opposite side 23d side, both may be arranged close to one side 23c side or the opposite side 23d side, in which case the base ends of one and the other binding members 24, 25 The protruding direction of the portions 24a and 25a from the plate-like protection member 23 and the insertion direction of the tip portions 24b and 25b of the one and the other binding members 24 and 25 with respect to the one and the other lock portions 26 and 27 are one embodiment. Thus, it may not be substantially parallel. For example, the protruding direction of the base end portions 24a, 25a of the one and the other binding members 24, 25 from the plate-like protective member 23 is perpendicular to the plate surface direction of the plate-like protective member 23, while one and the other The insertion direction of the tip portions 24b, 25b of the one and other binding members 24, 25 with respect to the other lock portions 26, 27 may be the plate surface direction of the plate-like protection member 23.

  As described above, the present invention is a protector that protects a branch portion of a wire harness, has a small number of fixing points to the wire harness side, and can easily fix the protector and a wire harness including the protector. The present invention can be provided, and is useful for a protector that protects the vicinity of a branch portion where a branch line emerges from a trunk line of the wire harness, and a wire harness including the protector.

10 Wire harness 11 Electric wire (wire bundle)
12 Trunk line (trunk line)
13 Branch line part (branch line)
14 Branching part 20 Protector 21, 22 Cylindrical protective member 23 Plate-shaped protective member 23a One side of wire side (inner side)
23b Single side 24, 25 Bundling member 24a, 25a Base end 24b, 25b Tip 24c, 25c Concavity and convexity 26, 27 Locking part

Claims (4)

A protector that protects a branch portion from which a branch line comes out from a trunk line of a wire harness,
One and the other cylindrical protective member that covers the trunk line on both sides of the branch portion in the length direction of the trunk line,
A plate-like protection member straddling between the one and the other tubular protection members along the trunk line and the branch line near the branch part;
One and the other joined to the plate-like protective member on the base end side so as to protrude from one side of the plate-like protective member to one side in the radial direction of the trunk line on both sides of the branch portion in the length direction of the trunk line A bundling member of
The plate-like protection member has one and the other lock portions for locking and stopping the tip portions of the one and the other binding members on both sides of the branch portion in the length direction of the trunk line;
The one and the other tubular protective members are fastened and fixed to the trunk line on both sides of the branching portion in a state in which the distal ends of the one and the other binding members are locked and stopped by the one and the other locking portions, respectively. And a protector, wherein the plate-like protection member is fixed to a predetermined posture for protecting the branch portion with respect to the branch portion.   2. The protector according to claim 1, wherein the one and the other bundling members are constituted by flexible bands integrally joined to the plate-like protective member on the respective base end sides.   The protector according to claim 1 or 2, wherein the plate-like protective member and the one and other binding members are each made of the same type of synthetic resin.   The wire harness with a protector which has the said branch part with which the protector as described in any one of Claim 1 thru | or 3 was equipped.

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