JP2010268605A - Branch binding band - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a branch binding band for binding a branch of a wire group without misalignment in a branch position. <P>SOLUTION: The branch binding band is formed of a resin mold where a band fixing part having a plurality of band locking holes with different penetration directions and a plurality of band pieces which project radially from the band fixing part and have locking grooves to be locked to the locking pieces disposed in the band locking holes, are integrally arranged. The band fixing part is installed in the branch position of a wire harness. A plurality of the band pieces are wound to the wire groups of branch lines and a trunk line of the wire harness, and inserted into the band locking holes of the band fixing part so as to fasten them. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a branch binding band attached to a branch position of a wire harness.

There are many places where branch lines are branched from the trunk line in the wire harness routed in the automobile, and in many cases the tape is wound around the outer periphery of the electric wire group so that the branch position does not shift (Japanese Patent Laid-Open No. 2000-2000). 4530).
The bundling of the branch portion is performed by supporting the wire group constituting the wire harness with the wiring jig on the wire harness assembly work table and branching the branch line W2 from the main line W1 in FIG. In this way, the branching position is prevented from shifting by wrapping the adhesive tape T with a sash.

  However, the tape winding work at the branch part requires skill, and the tape winding work becomes more complicated as the number of branch lines branched from the main line (the number of branches) increases, and the branch position tends to vary between products. There is. In addition, there is a problem that the binding by the tape winding may cause a deviation, and it takes a number of work steps and time, and the appearance of the binding part is not so good.

JP 2000-4530 A

  The present invention has been made in view of the above problems, and can reliably and easily bind without causing a shift in the branching portion of the electric wire group regardless of the skill level of the worker, and can suppress variation in the branching position. It is an object to provide a band for bundling that can be bundled nicely.

In order to solve the above problems, the present invention provides:
A band fixing portion provided with different penetrating directions of the plurality of band locking holes, and a locking groove protruding radially from the band fixing portion and locking a locking piece provided in the band locking hole. It consists of a resin molded product that is integrally provided with a plurality of provided band pieces,
The band fixing portion is disposed at a branch position of the wire harness, and the plurality of band pieces are respectively wound around the branch line of the wire harness and the electric wire group of the main line, and then inserted and locked into the band locking holes of the band fixing portion. There is provided a band for binding a branching portion characterized by being configured to be fastened.

  The base ends of the plurality of band pieces may protrude radially from the center connecting portion provided on the upper end surface or the lower end surface of the band fixing portion, or from the lower end or upper end of each side surface of the band fixing portion, respectively. You may make it protrude.

The branching unit binding band according to the present invention is a branching position of an electric wire group of a wire harness which is held and wired by a wiring jig on a wire harness assembly work table, and the band fixing unit is the center of the binding band unit. For example, the band fixing portion is arranged on the lower surface side of the electric wire group at the branch position so as to match the positions, and each band piece is crossed on the upper surface side of the branch position and wound around the outer peripheral surface of the electric wire group. It can be pulled out to the side and inserted straight into the corresponding through hole of the band fixing part on the lower surface side, and fastened and fixed.
On the contrary, the band fixing part is arranged on the upper surface side of the electric wire group at the branch position, each band piece is crossed on the lower surface side of the electric wire group, pulled out to the upper surface side, inserted into the through hole of the band fixing part, and fixed. May be.

  According to the said structure, the outer peripheral surface of an electric wire group is made so that the center position of a band fixing | fixed part and the branch center position of a wire harness may correspond, and each band piece extended radially from the center position of a band fixing | fixed part may cross | intersect A simple and stable bundling of the branch portion with the branch position of the electric wire group as the center of the bundling can be performed simply by winding it around the wire. Therefore, the bundling work is facilitated, and the variation in the branch position, which has conventionally been easily caused by the skill level of the operator, can be suppressed, and the deviation of the branch position after the bundling can be prevented. Furthermore, the appearance can be improved as compared with the case of tape winding.

  The number of band pieces that extend radially from the band fixing part and the direction in which each band piece protrudes from the center position depends on the number of branch lines (number of branches) branched from the main line and their branching directions. Set as appropriate. That is, with the center position of the band fixing part coincident with the branch position of the electric wire group, the number of band pieces and the protrusions can be wound around the outer periphery of the branched branch line and the outer periphery of the trunk line branching the branch line, respectively. The direction is selected.

A branch positioning pin protrudes from the center of the upper surface or lower surface of the band fixing portion on the side from which the band piece protrudes, and an insertion hole through which the branch positioning pin is inserted is provided at the center in the width direction of each of the plurality of band pieces. ,
It is preferable that each wire piece is wound around the wire group after passing through the branch positioning pins.

As described above, a branch positioning pin protrudes from the band fixing part, and the band piece can be reliably crossed at the branch center position by passing the insertion hole of the band piece wound around the wire group through the pin. It is possible to clearly display the center position of the branch position without causing a deviation in the winding position of the band piece.
It is preferable that the insertion hole provided in each band piece has a long hole shape along the length direction of the band piece so that the wire groups having different outer diameters can be tightened. The length of the branch positioning pin is a length that protrudes from the upper surface of the wire group in a state where the band fixing portion is disposed on the lower surface of the wire group, and a plurality of band piece insertion holes are passed through the protruding pins. To be able to.

  Specifically, for example, when three band pieces are provided, the band fixing portion has a triangular prism shape, and band locking holes each having a band insertion opening opened on each of the three side surfaces of the band fixing portion are arranged in three upper and lower stages. On the other hand, the number of the band pieces is three protruding from the upper and lower ends of the three side surfaces.

The three band pieces project from the center position of the band fixing portion in a Y shape, and are used for holding a bundle at a branch portion of a group of wires in which two branch lines branch from a trunk line in a K shape.
In that case, one band piece on the crotch part of the trunk line and one branch line, another one band piece on the crotch part of the trunk line and the other branch line, another one band piece, It is possible to bind the K-shaped branch portions firmly in a balanced manner by positioning them on the main line side facing the crotch portion between the branch lines and winding these three band pieces in a cross shape.

In addition, the three band pieces wound around each of these electric wire groups can be inserted straight into the band locking holes from the band insertion openings opened on each side of the triangular prism-shaped band fixing portion, and the band engagement of each band piece Since the stop holes are provided separately on the upper and lower sides, the respective band pieces can be smoothly passed through the respective band locking holes and fastened without interfering with each other.
The branching and binding band of the present invention can be used not only for binding the K-shaped branch part and the cross-shaped branch part, but also for binding a T-shaped branch part.

  Furthermore, a clip for fixing the vehicle body of the band fixing portion may be detachable or protruded. When a clip for fixing the vehicle body is provided in the band fixing portion, the center of the branch position can be fixed to the vehicle body panel via the clip when the wire harness is routed to the vehicle.

  As described above, the branching unit binding band of the present invention is provided with a plurality of band pieces and a plurality of band locking holes for inserting and locking these band pieces individually in the band fixing part. Since each band piece can be wound around each electric wire group branched at the branching position, and each band piece can be fastened through the band locking hole of the band fixing portion, each electric wire group can be fastened. Can be done firmly.

  Also, match the center position of the band fixing portion with the center of the branch position of the wire harness, and cross each band piece radially extending from the center position of the band fixing portion at the branch position on the outer peripheral surface of the wire group. By simply winding the wire harness, the branch position of the wire harness can be used as the center of the bundling, so that a strong and stable bundling can be performed. Therefore, the bundling operation is facilitated, the variation in the branch position, which is likely to occur by tape winding, can be suppressed, and the deviation of the branch position after the bundling can be prevented.

  In particular, when the band fixing part is arranged below the branch position of the wire harness, the branch positioning pin is projected from the center position on the upper surface side of the band fixing part, and the pin protrudes upward from the electric wire group, Since a plurality of band pieces can intersect at the center position, no deviation occurs at the winding position of each band piece, and the wire pieces can be wound around the electric wire at a predetermined position.

The branch part binding band of 1st Embodiment is shown, (A) is the schematic perspective view which looked at the binding band part from the upper surface side, (B) is the schematic perspective view which looked at the lower surface side. (A) (B) (C) is the principal part enlarged view which looked at the band fixing | fixed part from each side. (A) is a schematic plan view showing a branch part of a group of electric wires branched from a trunk line into a K-shape, (B) is a schematic plan view showing a state where a branch part binding band is set in the branch part, (C ) Is a schematic plan view showing a state in which the band pieces of the binding band portion are wound around the outer peripheral surface of the electric wire group and the binding is completed. It is a schematic perspective view which shows the state which penetrated and locked the front-end | tip of the band piece to the locking hole of the band fixing | fixed part. It is a principal part enlarged view which shows the state which protruded the clip at the front-end | tip of the fixed band part of 2nd Embodiment. It is a schematic perspective view of the branch part binding band of 3rd Embodiment. (A) is a schematic top view which shows the state which set the branch part binding band to the branch part, (B) is a schematic plan view which shows the state which wound each band piece around the outer peripheral surface of the electric wire group, and was bound. . It is a figure which shows a prior art example.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
1 to 5 show a first embodiment of the present invention.
As shown in FIG. 3, the branching unit binding band 10 of the present embodiment binds and holds the branching part B of the electric wire group in which the two branch lines W2-1 and W2-2 are branched from the trunk line W1 into a K shape. Is.

As shown in FIG. 1, the branch unit binding band 10 made of a resin molded product has three band pieces 13 (13 </ b> A, 13 </ b> B, 13 </ b> C) and a central connection in which the base ends of these three band pieces 13 are connected. It comprises a band fixing part 17 provided continuously to the part 11.
The three band pieces 13 project from the center position 12 of the center connecting portion 11 at a 120 degree interval in a Y shape. On the other hand, the band fixing part 17 is provided with band locking holes 18 (18A, 18B, 18C) for inserting and locking the band pieces 13 (13A, 13B, 13C) from the tip in three stages.

  The band fixing portion 17 has a triangular prism shape, and, as shown in FIG. 2, band locking holes 18A, 18B in which the band insertion openings of the band pieces 13A, 13B, 13C are opened on the side surfaces 17A, 17B, 17C of the band fixing portion 17. , 18C are provided with different vertical heights, and the band locking holes 18A, 18B, 18C are penetrated to the corners opposed in the linear direction. Each of the band locking holes 18A, 18B, 18C has a locking piece 19 projecting from the lower inner surface, and a locking groove 14 and a locking piece provided in a sawtooth shape on each of the band pieces 13A to 13C. 19, the band piece 13 is fastened and fixed to the band fixing portion 17.

  As shown in FIG. 2, a branch positioning pin 16 is provided so as to project downward from the center position 12 on the lower surface (upper surface in FIG. 3) of the center connecting portion 11. On the other hand, each of the band pieces 13A to 13C is provided with a long hole-like insertion hole 15 extending in the length direction at the center in the width direction, and branches to the insertion holes 15 of the band pieces 13A to 13C wound around the wire group. The positioning pin 16 is passed through.

Next, a method of binding and holding the branch portion of the electric wire group with the branch portion binding band 10 will be described with reference to FIG.
First, as shown in FIG. 3A, a wire group constituting the wire harness is wired by holding it with a wiring jig 22 erected on a work harness 21 for assembling a wire harness. At the position where the wiring jig 22 is erected, the branch line B is formed by branching the two branch lines W2-1 and W2-2 from the trunk line W1 into a K shape.

In order to bind the branch part B of the electric wire group, the band fixing part 17 is arranged on the lower surface side of the electric wire group of the branch part B. At that time, the central connecting portion 11 is the upper surface, the three band pieces 13A to 13C are projected from the upper surface side of the band fixing portion 17, and the central connecting portion 11 and the three band pieces 13A to 13C are the lower surface of the wire group. To be located.
The branch positioning pin 16 protruding from the center connecting portion 11 is protruded upward through the wire group at the branch center position C of the wire group.

  In this state, as shown in FIG. 3B, the band piece 13A is located on the side of the trunk line W1 facing the branch side of the branch lines W2-1 and W2-2. The band piece 13B is located at the crotch (Y) between the trunk line W1 and the branch line W2-1. The band pieces 13C are arranged at the crotch portions (Z) of the trunk line W1 and the branch line W2-2, respectively.

Subsequently, as shown in FIG. 4, the band pieces 13 </ b> A, 13 </ b> B, and 13 </ b> C are wound around the outer peripheral surface of the electric wire group while passing through the insertion holes 15 of the band pieces 13 </ b> A, 13 </ b> B, and 13 </ b> C around the distal ends of the branch positioning pins 16. By passing the branch positioning pin 16 through the insertion holes 15 of the three band pieces 13A to 13C, the three band pieces 13A to 13C intersect at the branch center position C.
At that time, the insertion holes 15 of the band pieces 13B and 13C are passed through the branch positioning pins 16 first, and then the branch positioning pins 16 are passed through the insertion holes 15 of the band pieces 13A.

As shown in FIG. 3 (C), the tips of the band pieces 13A, 13B, 13C wound around the electric wire groups are inserted into the band locking holes 18A, 18B, 18C of the fixed band portion 17 and tightened, and the band pieces 13A- The locking pieces 19 are locked and fastened to the locking grooves 14 of 13C.
Thereby, the band piece 13A is wound in a direction orthogonal to the wire wiring direction, and is wound between the trunk line W1 and the branch lines W2-1 and W2-2. The band piece 13B is wound obliquely over the outer surface side of the trunk line W1 and the branch line W2-2, and the band piece 13C is wound obliquely over the outer surface side of the trunk line W1 and the branch line W2-1, and the band pieces 13B and 13C cross each other. The band piece 13A is wound around the outer periphery of the crossed band pieces 13B and 13C.

  As described above, by winding and fastening the electric wire group with the three band pieces 13A to 13C, the branch lines W2-1 and W2-2 branched from the main line W1 are reliably positioned and held at the branch positions. In addition, since the three band pieces 13A to 13C cross at the branch center C and pass through the branch positioning pins 16, they do not deviate from the branch position, and the branch lines W2-1 and W2-2 surround the branch center position. It can be concluded with.

  Further, since the three band pieces 13 (13A, 13B, 13C) need only be crossed on the upper surface side of the branch center C and wound around the outer peripheral surface of the electric wire group, the band pieces can be easily wound around a predetermined position. . Therefore, the binding position by the band piece can be kept constant regardless of the skill level of the operator. Therefore, it is possible to suppress the variation in the branching position, which is likely to occur in tape winding, and to be more compact and look better than tape winding.

FIG. 5 shows a second embodiment.
In the second embodiment, the clip 20 is integrally protruded from the lower surface of the band fixing portion 17 in order to fix the branch portion binding band 10 to the vehicle body panel.
The clip 20 has a locking blade portion 20c protruding left and right from the tip of a shaft portion 20b provided at the center of the plate portion 20a. The locking blade portion 20c has a mounting hole (not shown) peripheral edge on the vehicle body side. A locking step portion 20d is provided to be locked to. The central axis of the shaft portion 20 b is aligned with the center 12 of the center connecting portion 11.

As described above, when the clip 20 is provided and the clip 20 is inserted and locked in a locking hole (not shown) provided in the vehicle body panel, the clip 20 can be accurately fixed to the vehicle body panel at the center of the branch position of the wire harness. it can.
In addition, it is good also as a structure which attaches the clip 20 to this attaching part by providing the attaching part which attaches to the band fixing | fixed part 17 detachably, without providing the clip 20 in the band fixing | fixed part 17 by integral molding.

6 and 7 show a third embodiment.
As shown in FIGS. 7A and 7B, the branching unit binding band 30 according to the third embodiment is a binding unit for a branching unit B of an electric wire group in which one branch line W2 is branched from a trunk line W1 into a T shape. It is for holding.
As shown in FIG. 6, the center connecting portion 31 of the branch unit binding band 30 has two band pieces 33 (33A, 33B) protruding from the center position 32 of the center connecting portion 31 in a V shape. Yes. Further, a band member for inserting the ends of the band pieces 33A and 33B wound around the outer peripheral surface of the electric wire group and wound around the lower surface side of the center connecting portion 31 on two of the three side surfaces of the triangular prism-shaped band fixing portion 37. Stop holes 38A and 38B are provided. Other points such as the branch positioning pin 36 and the insertion hole 35 of the band piece 33 are the same as those of the first embodiment.
Also in the third embodiment, as in the first embodiment, the branch portions of the electric wire group can be easily and nicely bound, and variations in the branch positions can be suppressed.

  Further, the branching unit binding band of the present invention can be applied to binding of a branching unit in which two branch lines are branched in an X shape from the main line.

10, 30 Branching unit binding band 11, 31 Center connecting part 12, 32 Center position 13 (13A, 13B, 13C), 33 (33A, 33B) Band piece 14 Locking groove 15, 35 Insertion hole 16, 36 Branch positioning Pin 17, 37 Band fixing part 18 (18A, 18B, 18C), 38 (38A, 38B) Locking hole 19 Locking piece 20 Clip

Claims (4)

A band fixing portion provided with different penetrating directions of the plurality of band locking holes, and a locking groove protruding radially from the band fixing portion and locking a locking piece provided in the band locking hole. It consists of a resin molded product that is integrally provided with a plurality of provided band pieces,
The band fixing portion is disposed at a branch position of the wire harness, and the plurality of band pieces are respectively wound around the branch line of the wire harness and the electric wire group of the main line, and then inserted and locked into the band locking holes of the band fixing portion. A band for binding branching parts, characterized in that it is configured to be fastened. A branch positioning pin protrudes from the center of the upper surface or lower surface of the band fixing portion on the side from which the band piece protrudes, and an insertion hole through which the branch positioning pin is inserted is provided at the center in the width direction of each of the plurality of band pieces. ,
The band for binding a branching portion according to claim 1, wherein each of the band pieces is wound around the wire group after passing through the insertion holes of the band pieces.   The band fixing portion has a triangular prism shape, and band locking holes each having a band insertion opening that is opened on each of three surfaces of the band fixing portion are provided in three upper and lower stages, while the band pieces are respectively formed from the upper end or the lower end of the three surfaces. The band for binding a branch portion according to claim 1 or 2, wherein the three protruding bands are provided.   The band binding band according to any one of claims 1 to 3, wherein a clip for fixing the vehicle body of the band fixing portion is detachable or protrudes.

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