JP2000134745A - Protective material for wiring harness insertion work - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make the diameter of a protective material, in a state in which a wiring harness is wrapped in the protective material, of a prescribed dimension. SOLUTION: When a wiring harness is inserted through a panel through-hole or a narrow wiring part, the wiring harness is wrapped in a wiring harness insertion work protective material and inserted, and after the wiring harness is inserted, the protective material is removed. The wiring harness insertion work protective material consists of a pair of semicircular parts 11 and 12, whose one side edges are connected to each other with a thin hinge part (13) and whose other side edges are separated openably from each other. Locking nails 15 are made to protrude from the edge of one of the facing semicircular parts, but a plurality of locking nail receivers 16 and 17 with which the locking nails 15 are retained detachably are formed on the other semicircular part with intervals in the circumferential direction. The wiring harness is wrapped in the pair of semicircular parts 11 and 12, and the locking nails 15 are retained by the locking nail receivers 16 or 17, which are selected corresponding to the outside diameter of the wiring harness.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001] The present invention relates to a protective material for insertion work of a wire harness arranged in an automobile, and more particularly, to a case where it is necessary to penetrate a panel through hole or a narrow passage when installing a wire harness in an automobile. When it is necessary to pass through, the attached parts such as the connector of the branch line terminal that wraps the wire harness and branches off from the wire harness trunk are prevented from being caught by the periphery of the through hole or the narrow passage and unable to be inserted, and also to the connector etc. In order to prevent damage, the wire harness is detached from the wire harness after it has been penetrated through the through hole or passed through a narrow passage.

[0002]

2. Description of the Related Art Conventionally, as a protective material of this type, a female magic sheet (flocked female locking projection) 2 is generally attached to the entire back surface of a resin sheet 1 as shown in FIG. A male magic tape 3 is attached along one edge of the tape.

[0003] The method of using the protective material 4 is as follows. The distal end side of the wire harness W / H is placed on the surface of the resin sheet 1, and in this state, the resin sheet 1 is sushi-wrapped into a cylindrical shape.
As shown in the figure, the male magic tape 3 is adhered to the female magic sheet 2 and locked by pressing.

[0004] At this time, the protective material 4 is wound to such an extent that the attached parts such as the trunk line W1, the branch line W2, and the connector 5 at the end of the branch line of the wire harness W / H to be wrapped do not rattle. Therefore, the outer diameter D of the cylindrical protection member 4 in a state where the wire harness W / H is sushi-wrapped and wrapped is:
It changes according to the number of branches of the wire harness W / H, the number of connectors, and the like. That is, there are cases where the outer diameter D of the cylindrical protection member 4 is large and cases where it is small.

There is no problem if the outer diameter D of the protective member 4 is smaller than the inner diameter of the panel through hole to be inserted or the width of the narrow passage.
If it is large, it cannot be inserted. For this reason, after the protective material 4 is wound, as shown in FIG. 9B, an outer diameter value inspection jig provided with a through hole 6 having the same dimension d as the panel through hole (narrow passage width) to be inserted is previously provided. A jig 7 is provided, and the jig 7 is inspected by passing through the through hole 6 of the outer diameter value inspection jig 7.

[0006]

As described above, since the outer diameter of the cylindrical protective member must be inspected by the outer diameter value inspection jig 7, it takes a lot of labor and the outer diameter inspection jig is required. If it does not pass through the through hole 6 of the tool 7, it is necessary to rewind the protective material 4 again and inspect again. In some cases, trial and error is repeated.

In order to set the outer diameter D of the protective member 4 in a state where the wire harness is wrapped to a predetermined value that allows the panel member to pass through a through hole or a narrow passage, the area of the resin sheet 1 of the protective member 4 must be equal to that of the panel member. It may be changed according to the size of the hole or the narrow passage width, and the magic tape 3 provided at one end on the front side of the resin sheet 1 may be locked at a fixed position such as the other end on the back side. .

However, in this case, it is necessary to change the area of the resin sheet of the protective material 4 every time the inside diameter of the panel through hole to be inserted or the narrow passage width is different. Therefore, many kinds of protection materials 4 are required, which leads to a significant increase in cost and management time. Therefore, at present, only one kind (300 mm × 200 mm) of the protective material 4 is used, and the outer diameter D of the cylindrical protective material changes according to the amount of the wire harness to be wrapped. It has become.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems. One type of protective material can be provided with a plurality of outer diameters of a predetermined value, so that the number of types is not increased, and the inspection is not performed. It is an object of the present invention to provide a protective material for insertion work that becomes unnecessary.

[0010]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention relates to a wire harness that is wrapped around a wire harness when the wire harness is inserted into a panel through hole or a narrow wiring portion, and is removed after the wire harness is inserted. A protective material for insertion work, made of resin, provided with a pair of semi-annular portions in a state where a cylinder is vertically divided, and connected one end edge of the pair of semi-annular portions in the axial direction with a thin hinge portion. At the same time, the other end is separated to be openable and closable, and a lock claw is protruded from the tip of the one of the opposed semi-annular portions. The lock pawls are provided on the outer peripheral surface of the annular portion at intervals in the circumferential direction, wrap the wire harness with the pair of semi-annular portions, and select the lock pawls on the lock pawl receivers selected according to the outer diameter of the wire harness. Lock Provides insertion operation for a protective material for a wire harness, characterized in that has a configuration.

For example, as the lock claw receiver, a first lock claw receiver provided at a distal end of a semi-annular portion and a second lock claw receiver provided at a position spaced apart from the distal end by a certain dimension in the circumferential direction are provided. I have. The outer diameter becomes 100 mm when the lock pawl is locked to the first lock pawl receiver, and the outer diameter becomes 65 mm when the lock pawl is locked to the second lock pawl receiver.

When the above-mentioned protective material is used, it is only necessary to select a locked claw having an outer diameter smaller than the inner diameter or the narrow passage width of the panel through hole to be inserted, and lock the locked claw. That is, if the lock claw is locked to the selected lock claw receiver while wrapping the wire harness, the outer diameter of the protective material can be controlled to a predetermined value at the position of the lock claw receiver. Therefore, the conventional outer diameter inspection performed after the wire harness is wrapped in the protective material can be omitted. Further, as compared with a conventionally used resin sheet, the protective material of the present invention, which is a resin molded product, has a higher rigidity, so that it is possible to more reliably protect an accessory component such as a wrapping connector.

Since the wire harness may be wrapped in the above-mentioned protective material and fitted inside the wire harness to such an extent that the wire harness does not come off, even if the amount of the wrapped wire harness is slightly increased or decreased, the locked claw is not affected. If two or three pieces are provided at intervals in the circumferential direction so that the diameter after locking with the lock claw becomes two or three kinds, it can be used in common for most of the wire harness.

The lock pawls provided at intervals in the circumferential direction are provided at different positions in the axial direction, and provided with lock pawls for locking the lock pawls at different positions in the circumferential direction and the axial direction, respectively.

As described above, if the positions of the lock claw receivers provided at intervals in the circumferential direction are different in the axial direction,
In order to reduce the diameter, when locking the lock claw on the lock claw receiver at a position separated from the lock claw receiver on the front end side in the circumferential direction, the lock claw is pushed over by the lock claw receiver and it is difficult to lock. Can be prevented.

[0016]

Embodiments of the present invention will be described below with reference to the drawings. 1 to 5 show a first embodiment. The protection member 10 is made of a resin molded product, and as shown in FIG.
1 and 12, one end of the pair of semi-annular portions 11 and 12 in the axial direction is connected by a thin hinge portion 13 over the entire length, and the other end is openably and closably separated.

The locking pawls 1 are provided on both sides in the longitudinal direction from the front end 11a of the one of the opposed semi-annular portions 11 which can be freely opened and closed.
5 are protruding. Tip 12a of the other semi-annular portion 12
A first U-shaped frame-shaped lock claw receiver 16 is provided at a position facing the lock claw 15, and the semi-circular annular portion 1 is positioned at a predetermined circumferential distance from the first lock claw receiver 16.
A second lock claw receiver 17 is protruded from the outer peripheral surface of the second lock claw 2. In the first embodiment, first projecting members are provided on both sides in the axial direction.
The lock claw receiver 16 and the second lock claw receiver 17 have the same position in the axial direction.

The length L of the protection member 10 in the axial direction is set to a length that can accommodate a branch line branching from the wire harness at the leading end of the wiring when the wire harness is wired to the vehicle. As shown in FIG. 3A, when the lock claw 15 is locked to the first lock claw receiver 16, the outer diameter of the pair of semi-annular portions 11 and 12 is 100 mm.
As shown in (B), when the lock claw 15 is locked with the second lock claw receiver 17, the outer diameter is set to be 65 mm.

The diameters of the semi-annular portions 11 and 12 are not limited to the above-mentioned values, and the lock pawl receiver is formed by the second
A third lock claw receiver may be provided at a position further away from the lock claw receiver 17 by a predetermined dimension in the circumferential direction. In addition, the first
In the embodiment, the lock claw and the lock claw receiver are provided on both sides in the axial direction. However, when the length L in the axial direction is short, the lock claw and the lock claw receiver may be provided only in the central portion. When the protection member 10 is long, three or more protection members may be provided at intervals in the length direction.

As shown in FIG. 4, the protective member 10 having the above structure closes the semi-annular portions 11 and 12 with the leading end of the wire harness W / H interposed therebetween, and locks the lock claw 15 in FIG.
As shown in FIG. 5, the second lock claw receiver 17 is locked with the first lock claw receiver 16 or, as shown in FIG.
To form a cylindrical shape and enclose the front end of the wire harness.

At this time, whether to lock the lock claw 15 with the first lock claw receiver 16 or the second lock claw receiver 17 depends on the inner diameter of the panel through hole through which the wire harness is inserted and / or the narrower. A lock claw receiver having a size smaller than its inner diameter or width is selected according to the width of the insertion point. That is, when the inner diameter of the panel through hole is 80 mm, the first lock claw receiver 16 is selected, and when the inner diameter of the panel through hole is 65 mm, the second lock claw receiver 17 is selected. Even when the inner diameter of the panel through hole is 80 mm, the amount of the wire harness to be wrapped is small,
When the wire harness comes off when locked with the lock claw receiver 16, the second lock claw receiver 17 is selected and locked with the lock claw 15.

The operation of locking the lock claw 15 with the first or second lock claw receivers 16 and 17 is as shown in FIG.
Lock claw 1 on lock claw receiver 16 or 17 of U-shaped frame
5 can be simply inserted and the tip claw 15a can be hooked, so that locking can be easily performed. In addition, protective material 10
After the wire harness covered with the wire is routed to the automobile and inserted through the panel through hole or the narrow passage, the lock claw 15 is unlocked from the lock claw receiver 16 or 17 and the protection member 10 is released.
Is removed from the wire harness and collected for reuse.

FIGS. 6 and 7A and 7B show a protective member 10 'according to a second embodiment. The difference from the first embodiment is that the position of the second lock claw receiver 17 is different from the position of the first lock claw receiver 16 in the axial direction, while the lock claw 15 is positioned at a position corresponding to the first lock claw receiver 16. Two lock pawls 15 are provided at two places corresponding to the second lock pawl receiver 17, and a total of four lock pawls 15 are provided.

In the case of the protective material 10 'as well, when the cylindrical outer diameter is 100 mm, the lock claw 15 is engaged with the first lock claw receiver 16 as shown in FIG. When the outer diameter is 65 mm, the lock claw 15 is locked with the second lock claw receiver 17 as shown in FIG. When the second lock claw receiver 17 is locked, the first lock claw receiver 16 is wound around the inner periphery of the semi-annular part 11 on the lock claw 15 side, and the second lock claw receiver 16 is wound. The lock pawl 15 is locked to the first lock pawl receiver 16 because the position of the lock pawl 15 to be locked is different from that of the first lock pawl receiver 16 in the axial direction. Accordingly, the second lock claw receiver 17 can be easily locked without being pushed to the outer peripheral side.

[0025]

As is apparent from the above description, according to the protective member of the present invention, since the lock claw receivers for locking the lock claws are provided at intervals in the circumferential direction, the outer portions are not attached to the wire harness. The outer diameter of the protective material to be fitted can be changed, and the outer diameter can be made constant by locking the lock claw in the selected lock claw receiver. Therefore, according to the panel through hole to be inserted and the narrow passage width, the lock claw receiver that locks the lock claw is selected, and after wrapping the wire harness, the lock claw is locked to the lock claw receiver, and the protection material Can be controlled to required dimensions.

Therefore, the inspection of the outer diameter, which is conventionally required, can be omitted, and the number of labors can be reduced. Also, there is no need to provide a protective material for each outer diameter, and one protective material can be shared even if the outer diameter is different. Therefore, there is no need to provide various types of protective materials, thereby reducing manufacturing costs and facilitating parts management. It can be.

[Brief description of the drawings]

FIG. 1 is a perspective view of a first embodiment of a protective material of the present invention.

FIG. 2 is an enlarged perspective view of a main part showing a lock claw and a lock claw receiver.

FIGS. 3A and 3B are schematic diagrams showing a state in which a lock claw and a lock claw receiver are locked.

FIG. 4 is a schematic view showing a method of attaching a protective material to a wire harness.

FIGS. 5A and 5B are perspective views showing a state where a protection member attached to a wire harness is attached.

FIG. 6 is a schematic perspective view showing a protective material according to a second embodiment.

FIGS. 7A and 7B are schematic perspective views showing a state in which the protection member according to the second embodiment is attached to a wire harness.

FIG. 8 is a perspective view showing a conventional protection member.

FIG. 9A is a perspective view showing a state where the wire harness is protected by a protective material, and FIG. 9B is a perspective view showing an inspection method after the protective material is attached.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Protective material 11, 12 Semi-annular part 13 Thin hinge part 15 Lock claw 16 First lock claw receiver 17 Second lock claw receiver W / H Wire harness

Claims (2)

[Claims] When a wire harness is inserted through a panel through-hole or a narrow wiring portion, the wire harness is wrapped and inserted, and is a protective material for insertion work of a wire harness which is removed after the insertion. A pair of semi-annular portions in a vertically divided state are provided, one end edges of the pair of semi-annular portions in the axial direction are connected by a thin hinge portion, and the other end edges are separated to be openable and closable. A lock claw protrudes from the tip of one of the opposed semi-annular portions, and a lock claw receiver for detachably engaging the lock claw is provided on the outer peripheral surface of the other annular portion at a circumferential interval. A plurality of semicircular annular portions wrap the wire harness, and the lock claws are locked to the lock claw receivers selected according to the outer diameter of the wire harness. Wire Insertion operation for the protective material of the harness. 2. The lock pawls provided at intervals in the circumferential direction are provided at different positions in the axial direction, and provided with lock pawls for locking the lock pawls at different positions in the circumferential direction and the axial direction, respectively. The protective material for insertion work of a wire harness according to claim 1.