JP3098178B2 - Structure and method for fixing wire harness to electrical junction box - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a structure and a method for fixing a wire harness to an electric junction box for fixing the wire harness to a junction box body.

[0002]

2. Description of the Related Art FIGS. 5 and 6 show a structure for fixing a wire harness to an electric junction box described in Japanese Utility Model Laid-Open No. 2-13783. The fixing structure shown in FIG.
FIG. 6 shows a structure for fixing a wire harness 2 drawn out of the device to its own wall surface 3, and FIG. 6 shows a structure for fixing a wire harness drawn out of another device to the wall surface 4.

[0003] As shown in FIG.
A focusing band 7 is integrally formed on the column 5 via a hinge 6 above. A lock hole 8 is provided on the free end side of the focusing band 7. Further, a lock portion 9 is provided on the wall surface 3 so as to face the column 5. A portion between the lock portion 9 and the support 5 forms a convergence portion 10 where the wire harness 2 is convergence. The locking portion 9 includes a locking projection 11.
Are protruding. The locking projection 11 is
With the lock hole 8 of the first.

[0004] The wire harness 2 pulled out of the electric junction box 1 is inserted into the convergence section 10, the convergence band 7 is turned down to the wall surface 3 side, and the locking projection 11 is inserted into the lock hole 8.
Is engaged. Thereby, the wire harness 2 pulled out from the inside of the electric connection box 1 is fixed on the wall surface 3.

By the way, the hinge 6 for connecting the focusing band 7 to the column 5 so as to be able to bend freely needs to have flexibility. Inexpensive polypropylene or the like is used as a material for forming the electric junction box 1. Therefore, if it is integrally formed with the electric junction box 1, it is easy to break because of low flexibility.

Therefore, if an expensive and highly flexible material such as nylon is used, the junction box body 1a which does not require flexibility is used.
Material cost is high because it is molded up to.

[0007] Therefore, the wall surface 3 is formed by using the flexible hinge 6.
Instead of integrally forming the focusing band 7, the focusing band 12 may be formed separately from the wall surface 4 of the connection box body 13 as shown in FIG. In this case, one end of the focusing band 12 is rotatably supported by the support portion 14 provided on the wall surface 4, and the other end of the focusing band 12 is engaged with the lock portion 15 provided on the wall surface 4. Thereby, the wire harness can be fixed to the wall surface 4. According to this structure, an inexpensive material having low flexibility can be used, and the material cost can be reduced.

[0008]

However, in the conventional wire harness fixing structures described in the above publications,
Wire harnesses on both sides of the wire harness 3,
In order to provide lock portions 9 and 15 for fixing on the top 4, columns 5, and focusing bands 7 and 12, the connection box main body 1 a,
13 has a complicated structure, and there is a problem that the manufacturing cost increases.

Further, the connection box bodies 1a, 13 are large in size, and a large space is required for disposing the large connection box bodies 1a, 13.

Therefore, Japanese Utility Model Publication No. 6-13334 discloses that
An inexpensive and space-saving fixing structure of a wire harness to an electric junction box has been proposed. This fixed structure
As shown in FIG. 7, a receiving portion 17 opened downward from a side wall of a case (electric connection box) 16, and on both sides of the receiving portion 17,
Protrusions 18 and 19 are provided at the same height as or slightly lower than the height of the receiving portion 17, and the wire harness 20 is hooked on the protrusion 18, the receiving portion 17 and the protrusion 19.

However, in this structure, since it can be formed only on the side surface of the electric connection box 16, the electric connection box 1
It cannot be used when the wire harness 20 is routed on the upper surface side of 6. Further, in this structure, when a static external force is applied to the wire harness 20, the wire harness 20 is fixed and fixed.
Although it can be held, it cannot be securely fixed and held when subjected to vibrations or tensile forces in various directions, and may move.

Therefore, the present applicant has filed Japanese Patent Application No. 7-1641.
No. 68 proposes a fixing structure that is inexpensive and space-saving, and that can securely fix and hold a wire harness to an electric junction box. In this fixing structure, as shown in FIG. 8, a clip 22 having a locking head 21 is attached to a wire harness 20 and a locking hole into which the locking head 21 of the clip is inserted and engaged with a connection box main body 23. The wire harness 20 is fixed to the connection box main body 23 by providing the lock head 24 and engaging the lock head 21 with the lock hole 24. According to this structure, the locking head 21 of the clip 22 is securely locked in the locking hole 24 provided in the connection box main body 23, so that the wire harness 20 is securely fixed and held in the connection box main body 23. I can do it.

[0013]

However, in this structure, the connection box main body 23
Since the locking hole 24 is provided in the connection box main body 23 as shown in FIG. 9 until the locking head 21 of the clip 22 is inserted and locked. There is a risk of getting into it. For this reason, the locking head 21 of the clip 22
A cover is required to keep the locking hole 24 closed until the is inserted and locked. As a result, the clip 22
When the locking head 21 is inserted into the locking hole 24, it is necessary to separately provide a lid that becomes unnecessary.

Therefore, the present invention is inexpensive and space-saving, and can securely fix and hold the wire harness to the electric connection box, and furthermore, fixes and holds the wire harness to the electric connection box. An object of the present invention is to provide a structure for fixing a wire harness to an electric junction box, which does not require the provision of a cover that is not required later.

[0016]

According to the first aspect of the present invention,
A fixing structure of a wire harness to an electric connection box for fixing the wire harness to a connection box body, wherein the wire harness is fixed to the electric connection box.
A binding band that is wound around the outer periphery of the harness and bound
And before this binding band binds the wire harness
A band fixing portion fixed to the connection box body,
The binding band is wound around the outer periphery of the wire harness.
Long band and one end of this band
Locking head engaged with a saw tooth formed on the band portion
And the band fixing portion is provided on the connection box body.
And the both sides in the width direction of the band
Before binding the nest,
And a projection provided on the connection box body
A fitting recess in which the locking head is fitted and positioned.
It is characterized by consisting of .

According to the first aspect of the present invention, before binding the wire harness, the binding band is fixed to the band fixing portion of the connection box body, and the wire harness is bound by the binding band in this state, so that the wire harness is bound. Secure the harness to the junction box body. When fixing the binding band to the band fixing portion of the connection box body, the band portion is movably clamped in the longitudinal direction by the protrusion of the connection box body. Then, wrap the band portion in this state around the outer periphery of the wire harness, engage the band portion with the locking head, position the wire harness, then tighten the wire harness with the band portion, and fix the locking head. Fit into the fitting recess. Thereby, the wire harness is fixed to the connection box main body by the binding band.

[0018] The invention according to claim 2 provides the electric power supply according to claim 1.
The wiring harness is fixed to the junction box
The protrusion is formed on one of the top surface and the side surface of the connection box body.
The fitting recess is formed so that the upper surface and the side surface are continuous.
It is characterized in that it is formed at a corner portion .

According to the second aspect of the present invention, after the wire harness is bound by the binding band previously fixed to the connection box body, the locking head is fitted into the fitting recess formed at the corner. Fix the binding band to the junction box body.

According to a third aspect of the present invention, a wire harness is provided.
Wire harness to electrical junction box that secures
Wire around the outer periphery of the wire harness
At one end of the long band that is attached,
A binding band with an engaging head that is integrally molded
Both sides in the width direction are connected to the outer periphery of the junction box body and the junction box body.
Between the projections provided, movably in the longitudinal direction,
Locking head after winding the wire harness around the band
The wire harness is temporarily locked so that it can move in the longitudinal direction,
Lock the band after positioning the wire harness
Part, fully bind the wire harness, and
Is formed at the corner where the top and side of the junction box body are continuous.
The wire harness.
It is characterized in that it is fixed to the junction box body via a binding band .

According to the third aspect of the present invention, the band portion of the binding band is previously fixed to the projection of the connection box body so as to be movable in the longitudinal direction, the wire harness is wound around the band, and the band portion is attached to the locking head. Temporarily lock. Then, after positioning the wire harness, the band portion is fully locked to the locking head and bound, and the locking head is fitted into the fitting recess. Thereby, the wire harness is fixed to the connection box main body by the binding band.

[0022]

[0023]

[0024]

[0025]

[0026]

Next, an embodiment of a fixing structure of a wire harness to an electric junction box according to the present invention will be described.

As shown in FIGS. 1 (a) and 1 (b), in the fixing structure of the present embodiment, a binding band 25 wound around the outer periphery of the wire harness 20 and bound is used.
A band fixing portion 29 fixed to the connection box main body 27 before binding is provided on the outer periphery of the connection box main body 27.

The binding band 25 is connected to the wire harness 20.
And a locking head 35 which is integrally formed on one end of the band portion 31 and engages with a saw tooth 33 formed on the band portion 31.

The band fixing portion 29 is connected to the connection box main body 2.
7, a pair of L-shaped protrusions 3 protruding from one side surface 37.
9 and 39, and a corner 4 where one side surface 37 and the upper surface 41 are continuous.
3 is formed. Projection 39,
39 are formed facing each other at a predetermined interval, and insertion openings 47, 47 are formed at the top and bottom. The width between the projections 39, 39 is slightly larger than the width of the binding band 25. By inserting the band 31 between the projections 39, 39, both sides in the width direction of the band 31 are formed. Each portion is movably sandwiched between one side surface 37 of the connection box main body 27 in the longitudinal direction (vertical direction in the figure).

The fitting recess 45 is formed in the corner 43 near one of the insertion openings 47 of the protrusions 39. The locking head 35 of the binding band 25 is fitted and positioned in the fitting recess 45.

Next, a method of fixing the wire harness to the electric connection box will be described.

First, as shown in FIG.
Is fixed to the connection box main body 27 in advance so that the band portion 31 is movable in the longitudinal direction. That is, the protrusions 39, 3
The band part 31 is inserted from the front end between 9 and the side surface 37 of the connection box main body 27. Next, after arranging the wire harness 20 near the connection box main body 27 and winding the band portion 31 around the outer peripheral portion of the wire harness 20, the band portion 31 is wound.
Is inserted into the locking head 35. In this state,
The wire harness 20 is temporarily locked so as to be movable in the longitudinal direction.

After the position of the wire harness 20 is determined, the outer periphery of the wire harness 20 is tightened by the band portion 31 to fully lock the band portion 31 on the locking head 35. Further, as shown in FIG. 3, the locking head 35 is fitted into the fitting recess 45 so that the binding band 25
Is fixed to the connection box main body 27. As a result, FIG.
As shown in FIG.
Can be fixed to the connection box main body 27 via the.

According to this embodiment, since the wire harness 20 is fixed to the connection box main body 27 using the binding band 25, it is possible to reduce the cost and space.

Further, by fixing the binding band 25 to the connection box main body 27 and binding the wire harness 20 with the binding band 25, the wire harness 20 can be securely fixed and held in the electric connection box.

Furthermore, in the fixing structure of the present embodiment, since there is no hole penetrating into the inside of the connection box main body 27, it is possible to reliably prevent foreign matters from being mixed. In addition, since there is no hole penetrating to the inside of the connection box main body 27, there is no need to provide a lid.

Further, since the positioning of the wire harness 20 can be performed while the wire harness 20 is temporarily locked by the band portion 31, it is not necessary to accurately position the band portion 31 with respect to the connection box main body 27. Productivity is improved.

Next, another embodiment shown in FIG. 4 will be described. The band fixing portion 51 provided on the connection box main body 49 of the electric connection box according to the present embodiment has an L on the upper surface 53 of the connection box main body 49.
The letter-shaped projections 55 are formed. A fitting recess 61 is formed at a corner 59 where the upper surface 53 and the side surface 57 are continuous.
Are formed.

Then, the band portion 31 is movably held in the longitudinal direction between the projections 55, 55 and the upper surface 53, and after the band portion 31 is wound around the outer periphery of the wire harness, the wire harness is positioned. The part 31 is engaged with the locking head 35. Next, the locking head 35 is fitted into the fitting recess 45.

In this embodiment, the same effects as those of the above embodiment can be obtained. In addition to being inexpensive and space saving, the wire harness can be securely fixed and held in the electric connection box. In addition, there is no need to provide an unnecessary cover after fixing and holding the wire harness in the electric connection box.

In the above embodiments, the projections 39 are provided as band fixing portions. However, the present invention is not limited to this, and the binding band may be fixed to the connection box main body by another fixing structure.

[0042]

As described above, according to the first aspect of the present invention, before binding the wire harness, the binding band is fixed to the projection of the connection box main body, and the wire harness is fixed by the binding band in this state. By binding, the wire harness is fixed to the connection box main body, so that it is possible to save cost and space and to securely fix and hold the wire harness to the electric connection box, and to connect the wire harness electrically. There is no need to provide an unnecessary lid after fixing and holding the box. Further, the wire harness can be easily and reliably fixed and held to the connection box main body by the binding band.

According to the second aspect of the present invention, after binding the wire harness with the binding band fixed in advance to the connection box main body, the locking head is fitted into the fitting recess formed at the corner. Thereby, the binding band can be fixed and held on the connection box main body, and the wire harness can be fixed and held on the connection box main body via the binding band.

According to the third aspect of the present invention, the band portion of the binding band is previously fixed to the projection of the connection box body so as to be movable in the longitudinal direction, the wire harness is wound around the band portion, and the band portion is attached to the locking head. Is temporarily locked. Then, after positioning the wire harness, the band portion is fully locked to the locking head to bind the wire harness. Thereby, the wire harness can be easily and reliably fixed and held to the connection box body by the binding band.

[0045]

[0046]

[Brief description of the drawings]

FIG. 1 is a perspective view showing a connection box main body and a binding band that binds a wire harness in an embodiment according to the present invention.

FIG. 2 is a perspective view showing a connection box main body and a binding band in the embodiment according to the present invention.

FIG. 3 is a cross-sectional view showing a relationship between a binding band and a connection box main body.

FIG. 4 is a perspective view showing a band fixing portion of a junction box body of another embodiment.

FIG. 5 is a perspective view showing a conventional structure for fixing a wire harness to an electric junction box.

FIG. 6 is a perspective view showing a structure for fixing a wire harness to another conventional electric connection box.

FIG. 7 is a perspective view showing a conventional structure for fixing a wire harness to an electric junction box using a receiving portion and a projection.

FIG. 8 is a perspective view showing a conventional structure for fixing a wire harness to an electric junction box using a clip.

FIG. 9 is a cross-sectional view showing the inside of the electric connection box and a locking hole with which a clip engages in the structure for fixing the wire harness to the electric connection box shown in FIG. 8;

[Explanation of symbols]

 Reference Signs List 20 wire harness 25 binding band 27, 49 connection box main body 29, 51 band fixing portion 31 band portion 33 saw tooth 35 locking head 39, 55 projecting portion 45, 61 fitting concave portion

Continuation of the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) H02G 3/30 F16L 3/08 H02G 3/08 H05K 7/00 B60R 16/02

Claims (3)

(57) [Claims] 1. A structure for fixing a wire harness to an electric connection box for fixing the wire harness to a connection box body, wherein the wire harness is wound around an outer periphery of the wire harness and bound.
Cable ties and the cable ties
Band fixing before being bound to the junction box body
And the binding band is wound around the outer periphery of the wire harness.
And one end of this band
A lock that is shaped and engages a saw tooth formed in the band portion
A head, wherein the band fixing portion is provided on the connection box main body, and
Bind the wire harness to both sides in the width direction of the
Before being movably sandwiched between the outer circumference of the junction box body and the longitudinal direction.
A holding portion, and the locking head provided on the connection box main body.
And a fitting recess for fitting and positioning the wire harness to the electric connection box. 2. A wire to an electric junction box according to claim 1.
It is a fixing structure of a harness, wherein the protrusion is the connection box.
Formed on either the top surface or the side surface of the main body,
A mating recess is formed at a corner where the upper surface and the side surface are continuous.
The structure for fixing the wire harness to the electrical junction box. 3. The wiring harness is fixed to the connection box body.
How to fix the wire harness to the electrical junction box
Long wire that is wound around the outer periphery of the wire harness
At one end of the band, an engaging head that engages the sawtooth of the band
Attach the integrally formed binding band to both sides of the band in the width direction.
Between the outer periphery of the junction box body and the protrusion provided on the junction box body
To move the wire harness in the longitudinal direction.
After wrapping around the band, wire harness to the locking head
Is temporarily locked so that it can move in the longitudinal direction, and the wire harness
After positioning, fully lock the band to the locking head
Tie the harness and place the locking head on the connection box body.
Fits into the fitting recess formed at the corner where the face and side face are continuous.
And position the wire harness through the binding band.
A method of fixing a wire harness to an electric junction box, wherein the method is fixed to a junction box body .