JPH1169562A - Coupling member for sheathing material of wire harness - Google Patents

Abstract

PROBLEM TO BE SOLVED: To simply and surely provide a coupling member capable of uniting and fixing corrugated tubes of different diameters at the branching part of a wire harness. SOLUTION: In the vicinity of each corrugated tube-inserting port 4 of a body 2, a pair of hooking and fixing strips 5 is provided at two spots which project at required intervals from the internal surface of the bottom. This pair of hooking and fixing strips 5 expands at their tips and is V-shaped. Furthermore, a plurality of V-shaped hooking and fixing grooves 6 for hooking and fixing the tip of each hooking and fixing strip 5 are provided continuously in the internal surface of a lid 3 which is located above these hooking and fixing strips 5. A tip of each of corrugated tubes 7a, 7b, 7c of different diameters is inserted between a pair of hooking and fixing strips 5 from above each corrugated tube inserting port 4. In this case, a pair of hooking and fixing strips 5 bends and opens according to the outside diameter of each corrugated tubes 7a, 7b, 7c and fits in a recess on the periphery of the corrugated tube 7a, 7b, 7c. Then the tip of each hooking and fixing strip 5 hooks a V-shaped hooking and the fixing groove 6 in the internal surface of the lid 3 is fixed and locked by having the body 2 covered with the lid 3.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a joint member for a sheathing material of a wire harness, and more particularly, to a portion where a corrugated tube sheathing portion of a wire harness branches and can connect and fix a corrugated tube of various diameters. And a joint member that can be connected and fixed.

[0002]

2. Description of the Related Art Corrugated tubes (hereinafter abbreviated as "corrugates") are provided at required locations on wire harnesses installed in automobiles to protect the wire harnesses. A corrugated body 71a, 71b, 71c, which is provided on a wire harness, is connected and fixed using a joint member 70 as shown in FIG.

In the example shown in FIG. 7, a wire harness W / H
Are branched in a T-shape, so that the joint member 70 used is T-shaped.
And three end openings 70a, 70b, 70c
The front ends of the corrugates 71a, 71b, 71c, which are respectively provided on the wire harnesses W / H, are fixed inside or outside.

The joint member 70 comprises a T-shaped main body 70d and a lid 70e having a semi-annular cross section. The main body 70d and the lid 70e are connected to each other by a thin hinge 72, and are connected to the main body 70d. Cover the main body 70
The lock concave portion d is fitted with the lock convex portion of the lid 70e to lock and lock. The main body 7 of the joint member 70
0d and the corrugates 71a, 71 on the outer peripheral surface of the lid 70e.
In some cases, a convex portion is provided for fitting and locking with the concave portion of the concave and convex portions of b and 71c.

The above-mentioned joint member 70 and corrugate 71
As shown in FIG. 7 (B), the wires a, 71b, and 71c are attached by branching and inserting the electric wire of the wire harness W / H into the main body 70d, and then covering and locking the lid 70e. Next, corrugates 71a, 71b, and 71c are externally fitted to the branched wire harnesses W / H, respectively.
The corrugated portions at the distal ends of the corrugates 71a, 71b, 71c are fitted and locked to the concave / convex portions provided on the outer periphery of the distal ends 70a, 70b, 70c of the joint member 70, and the tape 75
Is fixed by winding.

[0006]

In the joint member 70, the diameters of the distal ends 70a, 70b, 70c correspond to the diameters of the corrugates 71a, 71b, 71c, so that the wire bundle of the wire harness W / H is provided. It is necessary to use a joint member having a diameter corresponding to the diameter of each corrugate in order to fit a corrugate having a different outer diameter depending on the diameter of the corrugated member.

On the other hand, a corrugate having a different diameter can be connected by elastically holding the outer wall of the corrugate by bending an inverted V-shaped flexible arm provided on the inner wall near the distal end opening of the joint member. (JP-A-4-131588)
However, elastic retention by such a flexible arm,
If the holding force is weak and a load is applied in the direction in which the corrugate is pulled out from the joint member, there is a possibility that the corrugate is easily detached.

Further, the conventional joint member can be used when the corrugate is installed on the trunk line and the branch line of the branched wire harness W / H, respectively. It cannot be used when packaging a tube (abbreviated as tube).

In such a case, the wire harness W /
At the branching point of H, the corrugated armored corrugate and the tube armored to the branch line are abutted, and tape is crotch-wrapped around the branching portion to connect and fix the corrugated tube. The above-mentioned tape winding work is very troublesome, and when the tape winding work is not completely performed, the wire bundle is partially exposed at the branch portion, and in the worst case, it interferes with other members. The wire bundle could be damaged.

SUMMARY OF THE INVENTION In view of the above problems, the present invention provides a wire harness which can easily and reliably connect and fix corrugates having different diameters at a branch portion of the wire harness, and can also connect and fix a soft tube. It is an object to provide a joint member for an exterior material.

[0011]

In order to solve the above-mentioned problems, the present invention comprises a main body and a lid having a shape corresponding to the branching shape of the wire harness in claim 1, and the main body is covered with a lid to form a cylindrical body. Formed, the tip of the cylindrical body as a corrugated insertion port,
A pair of locking pieces project from the bottom inner surface of the main body near the corrugated insertion opening at a required interval, and the upper end of each locking piece is engaged with the inner surface of the lid located above the locking pieces. A plurality of V-shaped locking grooves for stopping are continuously provided, and the pair of locking pieces are locked in concave portions on the outer periphery of the corrugate corresponding to the outer diameter of the corrugate inserted from the corrugate insertion opening of the main body. The present invention provides a joint member of a wire harness exterior material configured to bend and open, close the lid in this state, and lock the tip of the locking piece with any of the locking grooves.

According to the above construction, when the corrugate is inserted into the corrugate insertion opening, the pair of locking pieces bend in accordance with the outer diameter of the corrugate and lock into the concave portions on the outer periphery of the corrugate.
Thereby, corrugates of different diameters can be connected and fixed to the joint member. In addition, the tips of the pair of locking pieces locked in the concave portion on the outer periphery of the corrugate are locked in the V-shaped locking groove and are not locked and easily opened. Therefore, even when a load is applied in the direction of pulling out the corrugate from the joint member, the corrugate does not detach.

Thus, a plurality of corrugates having different diameters can be easily and reliably connected and fixed by one joint member.

It is preferable that the main body and the lid are formed separately from each other or integrally formed through a thin hinge portion, and the main body and the lid are locked and fixed (claim 2). Thereby, the workability of attaching the wire harness can be improved.

The other end of the cylindrical portion is used as a tube insertion port for a soft tube to be sheathed in a branched wire harness. At the tube insertion port, a band is formed by projecting a lid outward from the main body. The band portion of the tie band provided on the band mounting portion is wound around the outer periphery of the tube to be inserted into the tube insertion opening of the main body and is fastened and fixed (claim 3).

When the above-mentioned joint member is used, not only can a plurality of corrugates having different diameters be connected and fixed to the corrugate insertion opening, but also the tube coming out of the tube insertion opening of the main body can be fixed with a tie band provided on the lid side. Can be. At this time, the number of tubes is not limited, and a plurality of tubes can be collectively tightened and fixed by the tie band.

The main body and the lid have a cross shape or a T-shape.

When the main body and the lid are formed so as to correspond to the branch shape of the wire harness as described above, the corrugates having different diameters of the wire harness branched into various forms, or the exterior connecting portion of the corrugate and the tube. Can be used. For example, even if a large diameter corrugate is installed on both sides of a trunk line and a small diameter corrugate is installed on a branch line branching out from the main line in a T-shape or cross shape, these corrugates having different diameters are easily and reliably connected and fixed. can do.

[0019]

Embodiments of the present invention will be described below with reference to the drawings. 1 to 3 show a first embodiment, in which a joint member 1 is composed of a main body 2 and a lid 3 having a substantially semi-annular cross section, which are separate bodies.

The main body 2 and the lid 3 are T-shaped in outer shape. The main body 2 is covered with the lid 3 and is locked and fixed by engaging the hook 3a of the lid 3 with the projection 2a of the main body 2. To form a cylindrical body having an annular cross section. The three end openings of the cylindrical body are corrugated insertion openings 4.

The main body 2 near each corrugated slot 4 has
A pair of locking pieces 5 are protruded from the inner surface of the bottom at two locations at a required interval. The tip of the pair of locking pieces 5 expands to V
It is shaped like a letter. On the inner surface of the lid 2 located above the locking pieces 5, a plurality of V-shaped locking grooves 6 for locking the tips of the locking pieces 5 are provided continuously. Each locking piece 5
By locking the leading end of each of the locking grooves 6 in each locking groove 6, the space between the pair of locking pieces 5 can be opened and the interval can be changed.

In such a joint member 1, a T-shaped branched wire harness (not shown) is first inserted into the main body 2. The wire harness branches from a large-diameter trunk line to a small-diameter two-way branch line, and a large-diameter (for example, φ13) corrugate 7a is fitted over the trunk line.
Corrugates 7b and 7c having small diameters (for example, φ10 and φ7) are externally fitted to the two branch lines.

The branch portion of the wire harness is inserted through the main body 2. The front ends of the corrugates 7 a, 7 b, 7 c are inserted between the pair of locking pieces 5 from above the corrugation insertion openings 4 of the main body 2. At this time, the pair of locking pieces 5 are corrugated 7
a, corrugated 7 which is bent and opened according to the outer diameter of 7b, 7c
a, 7b, and 7c are fitted into concave portions on the outer periphery. As shown in FIG. 2A, a corrugate 7a having a large diameter (for example, φ13).
The pair of locking pieces 5 locked to the outermost position are opened to the outermost side, and are locked to the corrugates 7b and 7c having a small diameter (for example, φ10 and φ7) as shown in FIGS. 2B and 2C. The pair of locking pieces 5 are opened in the middle and the innermost.

Next, the main body 2 is covered with the lid 3 and the projection 2a of the main body 2 is locked with the hook 3a of the lid 3 to be locked. At the same time, the tip of each locking piece 5 is locked by being locked in a V-shaped locking groove 6 on the inner surface of the lid 2.
That is, as shown in FIG. 2A, a large diameter (for example, φ1
The tip ends of the pair of locking pieces 5 locked to the corrugation 7a in 3) are locked to the outermost locking grooves 6, and are also shown in FIG.
As shown in (C), small diameters (for example, φ10 and φ10)
The tips of the pair of locking pieces 5 locked to the corrugations 7b and 7c of 7) are locked to the middle and innermost locking grooves 6.

Since the tips of the pair of locking pieces 5 are locked in the locking grooves 6 provided in the lid 2 as described above, each locking piece 5 is locked and does not easily open, and therefore, the joint Member 1
Even if a load is applied in the direction in which the corrugates 7a, 7b, 7c are pulled out from the, they can be securely connected and fixed without being detached.

FIG. 3 shows a modification of the first embodiment, in which the outer shapes of the main body 20 and the lid 30 are formed in a cross shape.
The four ends of the cylindrical body having the lid 30 covered with a cover 0 are corrugated insertion openings 4.

As in the first embodiment, a pair of locking pieces 5 protrude from the inner surface of the main body 20 in the vicinity of each corrugated slot 4 and a lid 30 located above these locking pieces 5. A plurality of V-shaped locking grooves 6 for locking to the tip of the locking piece 5 are provided continuously on the inner surface of.

Such a joint member 1a can be attached to a cross-shaped branch portion of a wire harness, and the diameters of four corrugates 7a, 7b, 7c which are externally fitted to the trunk line and each branch line branched from the trunk line are different. The corrugates 7a, 7 by the pair of locking pieces 5 of the corrugated insertion slot 4.
It can be connected and fixed corresponding to the diameters of b and 7c.

For example, as shown in FIG. 2A, a pair of locking pieces 5 in the corrugated insertion opening 4 are locked to the corrugated gate 7a having a large diameter (for example, φ13) provided on the trunk line. Corrugates 7b of small diameter (for example, φ10 and φ7), which are provided on branch lines branched in a cross shape from the main line,
As shown in FIGS. 2 (B) and 2 (C), the pair of locking pieces 5 lock the corrugations 7a, 7b and 7c having different diameters easily and reliably with respect to the base 7c. Can be.

FIGS. 4 to 6 show a second embodiment, in which soft tubes 8a to 8f can be tightened and fixed. The main body 200 and the lid 300 have a cross-shaped outer shape. The main body 200 is covered with the lid 300, and the hook 3a of the lid 300 is locked to the protrusion 2a of the main body 200, thereby being locked and fixed to form a circular cross section. It becomes a cylindrical body of shape. 2 of this cylinder
One tip port is a corrugated insertion port 4 similar to the first embodiment.
The other two distal end openings are tube insertion openings 9.

The tube insertion port 9 has a distal end surface that is not flush with the distal end surface and a distal end surface of the lid 300 protruding outward from the distal end surface of the main body 200. The protruding lid 3
The band mounting portions 10 are provided on the outer walls at both ends of 00. The band mounting portion 10 has a tie band locking portion 10a that opens in the vertical direction Z, and a band insertion that opens in the vertical direction Z and projects an elastic piece (not shown) having a convex portion at the tip in the opening. 10b.

The wire harness is 3
In two directions, and two in the left and right directions are branched into a plurality according to the routing route. A corrugation 7a having a large diameter (for example, φ13) is externally fitted to the trunk line of the wire harness, and a plurality of flexible tubes 8a to 8 are formed on each of the branch lines branched into a plurality of two directions in the left and right directions.
8f, and a small diameter (for example, φ7) corrugate 7c is externally fitted to the remaining branch lines.

The cross-shaped branch portion of the wire harness is inserted through the main body 200. The tips of the corrugates 7a and 7c are inserted between the pair of locking pieces 5 from above the corrugation insertion openings 4 of the main body 200, and the pair of locking pieces 5 are locked in the concave portions on the outer periphery of the corrugates 7a and 7c. The pair of locking pieces 5 are bent and opened according to the diameters of the corrugates 7a and 7c and locked. Then, by locking the main body 200 with the lid 300, the distal end of each locking piece 5 is locked by being locked in the V-shaped locking groove 6 on the inner surface of the lid 300. As a result, the corrugates 7a and 7c having different diameters are connected and fixed to the corrugate insertion openings 4 of the joint member 1b.

After inserting a plurality of tubes 8a to 8f into the tube insertion opening 9, the band portion 11a of the conventionally used tie band 11 is
a into the tie band locking portion 10a and the fastening portion 11b
The band 11a is inserted into the band insertion portion 10b, and the outer periphery of each of the tubes 8a to 8d and 8e to 8f is tightened. Fit to the convex part. As a result, a plurality of tubes 8a are inserted into the tube insertion port 9 of the joint member 1b.
To 8f are collectively tightened and fixed.

By using the joint member 1b as described above,
At the portion where the wire harness branches in a cross shape, any of the corrugates 7a and 7c and the soft tubes 8a to 8f having different diameters can be tightened and fixed. Further, since the tubes 8a to 8f are fastened and fixed by the tie band 11, the number thereof is not limited, so that the applicable range at the branch portion of the wire harness is wide.

In the above embodiment, the lids 2, 20, 2
00, six V-shaped locking grooves 6 on the inner surface are provided.
Although the corrugates 7a, 7b, and 7c of 10, 13 can be connected, the diameter of the corrugates that can be connected can be set by appropriately setting the number and intervals of the locking grooves 6.

In the above embodiment, the joint members 1, 1
a, 1b main body 2, 20, 200 and lid 3, 30, 300
Are separately formed, but they may be integrally formed via a thin hinge. Thereby, the workability of attaching to the wire harness can be improved.

The tie band 11 has a band portion 11a.
Is fitted to the elastic piece in the band insertion portion 10b,
After the band insertion portion 10b is inserted, the band portion 11a may be tightened and fixed by the conventional tightening portion 11b of the tie band 11.

[0039]

As is apparent from the above description, according to the joint member of the armor member of the wire harness of the present invention, a plurality of corrugates having different diameters can be easily and reliably connected and fixed by one joint member. It is possible to provide a configuration in which a flexible tube can be easily and reliably fixed by tightening with a tie band.

As a result, it can be used for branch portions of various forms of wire harnesses, the number of parts can be reduced, and parts management can be facilitated, and furthermore, the conventional tape winding operation becomes unnecessary. In addition, the degree of protection of the wire harness can be remarkably improved as compared with the conventional tape winding.

[Brief description of the drawings]

1A and 1B show a first embodiment of the present invention, wherein FIG. 1A is an external perspective view, FIG. 1B is a bottom view of a lid of a joint member, FIG. 1C is a plan view of a main body of the joint member, and FIG. It is a side view of a joint member.

FIGS. 2A, 2B, and 2C are cross-sectional views of main parts showing an operating state of the joint member of the present invention.

FIG. 3 is a perspective view showing a modification of the first embodiment of the present invention.

FIG. 4 is a perspective view showing a second embodiment of the present invention.

FIG. 5 is an exploded perspective view showing a second embodiment of the present invention.

6A and 6B show a second embodiment of the present invention, wherein FIG. 6A is a plan view of a lid of a joint member, FIG.
(C) is a side view of the joint member.

7A and 7B show a conventional example, in which FIG. 7A is a perspective view and FIG. 7B is an exploded perspective view.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1, 1a, 1b Joint member 2, 20, 200 Main body 3, 30, 300 Lid 4 Corrugated insertion opening 5 Locking piece 6 Locking groove 7a, 7b, 7c Corrugated 8a-8f Tube 9 Tube insertion opening 10 Band mounting part 10b Band insertion part 11 Tie band 11a Band part 11b Tightening part

Claims (4)

[Claims] 1. A body comprising a main body having a shape corresponding to the branching shape of a wire harness, and a lid. The main body is covered with a lid to form a cylindrical body, and a tip of the cylindrical body is used as a corrugated insertion port. A pair of locking pieces project from the inner surface of the bottom of the main body at a required interval, and a V-shape for locking the upper ends of the locking pieces to the inner surface of the lid located above the locking pieces. A plurality of locking grooves are provided continuously, and the pair of locking pieces are flexed and opened to lock in the recesses on the outer periphery of the corrugate corresponding to the outer diameter of the corrugate to be inserted from the corrugate insertion opening of the main body, A joint member of an exterior material of a wire harness, wherein the lid is closed in this state and the tip of the locking piece is locked by any of the locking grooves. 2. The exterior material for a wire harness according to claim 1, wherein the main body and the lid are separately formed or integrally formed via a thin hinge portion, and the main body and the lid are locked and fixed. Joint members. 3. The other end opening of the cylindrical portion is a tube insertion opening of a soft tube to be sheathed in a branched wire harness, and the band insertion portion is formed by projecting a lid outward from the main body at the tube insertion opening. 3. The structure according to claim 1 or 2, wherein the band portion of the tie band formed on the band mounting portion is wound around the outer periphery of the tube to be inserted into the tube insertion opening of the main body and fastened and fixed. Joint member for the exterior material of the wire harness. 4. The joint member according to claim 1, wherein the main body and the lid have a cross shape or a T-shape.