JP3480770B2 - Branch of wire harness and method of setting the branch - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wire harness branch suitable for connection to, for example, a car navigation system, a CD (compact disc), an MD (mini disc), etc., which is optionally additionally mounted on a vehicle such as an automobile. The present invention relates to a method for setting a section and its branch section.

[0002]

2. Description of the Related Art Conventionally, a wire harness arranged in a vehicle such as an automobile is provided with a branch portion so as to be able to be connected to an optional electronic device such as the car navigation, CD and MD described above. ing. This branch is fixed to the main line with tape, resin band or clip, etc. at the time of manufacturing the wire harness, and then required by the user when installing options during vehicle manufacturing or after reaching the user's hand. And it will be solved. If the branch section is not fixed and can move freely, the branch section collides with surrounding objects while the vehicle is running and abnormal noise is generated. This is to prevent

FIG. 7 briefly shows the process of fixing the branch portion with tape. As shown in FIG. 7, first, the branch line 2 to which the connector 1 is connected is folded back to the trunk line 3 side, and then the branch line is connected. Tape line 2 to main line 3 with tape 4. In addition, as a fixing of the branch portion, in Japanese Utility Model Laid-Open No. 60-135018, it is disclosed that the branch line branched from the main line of the wire harness is fixed to the main line by a surface fastener.
No. 14767 discloses that each wire of a wire harness is fixed by binding and holding it by a hold clamp, and No. 2-121338 of Actual Kaihei No. 2-121338 fixes the wire harness to a vehicle body or the like by an extension cable that keeps the wire harness in a bent state. Is disclosed. If a branch is not provided as an option, a wire harness will be required for each option, and this will result in a significant increase in product number and cost will not be met. Therefore, a branch portion is provided as an option.

[0004]

However, the above-described conventional method for fixing the branch portion of the wire harness has the following problems. Depending on the grade and custom order of the vehicle, there are cases where the option is installed from the beginning, but in such a case it is necessary to remove the branch part fixed to the main line, so the labor cost increases for that work, The cost of the wire harness itself will increase. Further, since the removed fixing member is thrown away, it is a waste of resources and a factor of increasing cost.

Therefore, it is an object of the present invention to provide a branching portion of a wire harness and a method of setting the branching portion, which can reduce the cost required for setting the branching portion of the wire harness.

[0006]

Means for Solving the Problems The above object according to the present invention is achieved by the following configurations. 1. The branch line branched from the main line of the wire harness wound with tape is embedded in the main line leaving the front end, and the front end is folded on the surface of the main line .
2. A branch portion of a wire harness, wherein a folded portion of the branch line is roughly wound with the tape so that the branch portion can be easily pulled out.

[0007]

[0008]

2. Claim 1 Symbol, characterized in that the distal end of the branch line is connected to a connector for equipment connection
Branch part of the wire harness. 3. The branch part of the wire harness according to claim 1 or 2, wherein only the pins except the housing of the connector for connecting the device are connected to the tip of the branch line.

[0010] 4. The branch portion of the wire harness according to any one of claims 1 to 3, wherein the branch portion is used for connection to an electronic device additionally mounted in a vehicle such as an automobile.

5. After pulling out the branch line from the main line of the wire harness, this branch line is embedded in the main line leaving the tip part, and then roughly for the part where the branch line is embedded,
A method for setting a branch portion of a wire harness, which comprises winding a tape around the surface of the wire harness so as to be denser with respect to the rest.

According to the above-mentioned constitution 1, the branch line branched from the main line of the wire harness is embedded in the main line leaving the tip end portion and the tape is roughly wound around the embedded part. It can be used by simply grasping and pulling out the tip of the branch line when needed. Also,
Since the branch line is fixed to the trunk line by embedding the branch line in the trunk line, a fixing member such as a tape, a resin band or a clip is not required.

[0013]

[0014]

According to the above-mentioned configuration 2, by connecting the connector in advance, it is possible to easily connect the optional electronic device on the spot.

According to the above configuration 3, since the housing of the connector is not provided, the cost can be reduced. Since the pins may be inserted into the housing when connecting to the optional electronic device, the connection to the electronic device can be easily performed on the spot. According to the above configuration 4, the manufacturing cost of the vehicle can be reduced by applying the present invention to the vehicle.

According to the method of the above-mentioned constitution 5, the branch line branched from the main line of the wire harness is embedded in the main line leaving the tip portion, and the tape is roughly wound around the embedded part. It can be used by simply grasping and pulling out the tip of the branch line when needed. Further, since the branch line is fixed to the main line by embedding the branch line in the main line, a fixing member such as a tape, a resin band or a clip is not required.

[0018]

Embodiments of the present invention will be described below with reference to the drawings. A. Branching Part of Wire Harness (a) Configuration of Branching Part of Wire Harness 10 FIG. 1 is a plan view showing the vicinity of the branching part of the wire harness 10 of the present embodiment. In FIG. 1, a connector 13 is connected to a tip portion of a branch line 12 branched from a main line 11 of a wire harness 10, and a tape 14 such as a vinyl tape is wound around the main line 11. In this case, the branch line 12 is long and is embedded in the trunk line 11 as shown in FIG. 2 except the part exposed from the trunk line 11. Also, the part exposed from the main line 11
It is folded as shown in FIG. 2 so that the folded portion can be easily pulled out when the branch line 12 is pulled out in the direction perpendicular to the main line 11 (direction of arrow A in FIG. 1). It is organized like a baby boom.

On the other hand, the tape 14 is wound around the main line 11 as described above, but the part where the branch line 12 is folded is roughly wound and the other part is closely wound. In this case, 15 shown in FIG. 1 is a part that is roughly wound, and 16 is a part that is tightly wound. When the tape 14 is wound around the trunk line 11, the portion where the branch line 12 is folded is roughly wound so that the nodular portion of the branch line 12 is caught between the tapes. It is possible to gradually pull out from between the tapes while stopped. Moreover, since the extra length of the branch line 12 is fixed to the main line 11 by embedding it in the main line 11, a tape, a band,
There is no need to fix with a fixing member such as a clip.

(B) Setting of branching portion of wire harness 10 FIG. 3 is a perspective view showing how the branching portion of the wire harness 10 is set. In FIG. 3, reference numeral 20 denotes a jig for setting a branching portion, which has a plurality of support columns 21 each having a J-shaped tip, a fork support column 22 for locking the branch line 12, and a trunk line. It is composed of a fork column 24 for locking 11 and a clip mounting fork 25 for attaching a clip to the trunk line 11. The columns 21 support the trunk line 11 and are used for bending the branch lines 12. In this case, the branch line 12 is bent so as to be hooked on the J-shaped portion of the support column 21. Fork prop 2
Reference numerals 2 and 24 denote three protrusions 22 provided at the tip of the protrusion.
The connectors 13 and 23 are locked by A and 24A.

As shown by the arrow B, the fork support 22 is
It is slidable toward the opposing columns 21,
The length of the branch line 12 can be determined by sliding this appropriately. That is, if the fork support post 22 is slid and fixed to a position corresponding to the required length, the length from the position to the support post 21 becomes the length of the branch line 12. Here, FIG. 4 is a diagram showing a case where the fork support column 22 is closest to the support column 21 and a case where the fork support column 22 is farthest from the support column 21. Branch line 1 when fork post 22 is closest to post 21
The exposed portion of the second trunk line 11 is minimized. Therefore, the length of the branch line 12 extending from the trunk line 11 can be changed by appropriately changing the distance at which the fork column 22 is brought closer to the column 21.

After the position of the fork support 22 is determined, the length of the branch line 12 is determined by locking the connector 13 to the fork support 22, and then the fork support 22 is attached to the support 22 for winding the tape 14. Slide it towards you and lock it in place. After that, the extra length of the branch line 12 is embedded in the trunk line 11 so that it becomes a nodule shape. When this embedding is completed, the tape 14 is wound. In this case, the branch wire 12 is roughly wound around the portion 15 (see FIG. 1) in which the branch wire 12 is embedded in the trunk wire 11 as described above. After the winding of the tape 14 is completed, the connector 13 is removed from the fork post 22.

As described above, in this embodiment, the branch line 12
Is embedded in the main line 11 while leaving the tip portion thereof, and the tape 14 is roughly wound around the embedded portion.
Therefore, since the branch line 12 can be pulled out when necessary, it is not necessary to remove the fixing member such as the tape, band, and clip when using the branch line. Further, since these fixing members are not used, resources can be effectively used and costs can be reduced. Further, since the tape 14 may be roughly wound around the portion where the branch wire 12 is embedded, the amount of tape can be reduced accordingly. This is a great advantage when the wire harness 10 is mass-produced.

In the above embodiment, the tape 14 is roughly wound around the portion in which the branch wire 12 is embedded, but the winding method is as shown by reference numeral 40 in FIG. Is effective. When crossing, the winding method itself is coarse. In addition, any winding method may be used as long as it does not interfere with pulling out the branch wire 12. Further, in the above-mentioned embodiment, the branch lines 12 are arranged in a nodule shape and embedded in the trunk line 11. However, if the branch lines 12 can be easily pulled out when pulled out, they may not be arranged in a nodule shape.

Further, although the connector 13 is connected to the branch line 12 in the above embodiment, the connector 13 is not necessarily connected, and the connector may be connected when the branch line 12 is needed. By doing so, the cost can be further reduced. Alternatively, only the pins may be connected except the connector housing. In this case, the cost can be reduced by the amount of the housing. Further, in the above embodiment, the branch wire 12 is two electric wires, but the number is not limited to this.

B. Application Example of Wire Harness 10 to Vehicle FIG. 6 is a longitudinal sectional view showing a state in which the wire harness 10 is applied to a vehicle. As shown in FIG. 1, a branch line 12 pulled out from the main body of the wire harness 10 is connected by a connector 13 to an electronic device 31 such as an optional car navigation, CD or MD fixed to an instrument panel 30. There is. The wire harness 10 is fixed to the vehicle body 32 by a clip 33. When connecting the branch line 12 as a branch portion and the connector 13 to the electronic device 31, the connector 13 is grasped and the branch line 12 is connected to the main line 11.
Pull out from within. After pulling out the branch line 12, the electronic device 3
The connector 13 is connected to the first connector (not shown). By applying the wire harness 10 to a vehicle in this way, the manufacturing cost of the vehicle can be reduced. Needless to say, the invention can be applied to various devices and equipment such as industrial robots other than vehicles.

[0027]

As described above, according to the present invention, the branch line branched from the main line of the tape-wound wire harness is embedded in the main line while leaving the front end portion, and the front end portion is connected to the main line. Fold it on the surface of
One, because the folded portions of the branches line was easily pulled out is rough winding by the tape, since only needs draw grabbed tip portion of the branch wire when necessary, was carried out prior tape Since the work of removing the fixing member such as the resin band or the clip is not necessary, the work is facilitated and the labor cost can be reduced. Further, since the branch line is fixed to the main line by embedding the branch line in the main line, the fixing member is not required, so that effective use of resources can be achieved and cost can be reduced.

[0028]

Also, by connecting a connector for device connection to the tip of the branch line, connection to an optional electronic device can be easily performed on the spot. Further, by connecting only the pins excluding the housing of the connector for device connection to the tip of the branch line, the cost can be reduced because the housing is not provided. Further, by using the present invention to connect to an electronic device additionally mounted in a vehicle such as an automobile as an option, the manufacturing cost of the vehicle can be reduced.

[Brief description of drawings]

FIG. 1 is a diagram showing a branch portion of a wire harness according to an embodiment of the present invention.

FIG. 2 is a view showing the inside of a branch portion of the wire harness of the same embodiment.

FIG. 3 is a perspective view showing a jig for setting a branch portion of the wire harness of the same embodiment.

FIG. 4 is a view for explaining setting of a length of a branch portion of the wire harness of the same embodiment.

FIG. 5 is a diagram showing an application example of a branch portion of the wire harness of the same embodiment.

FIG. 6 is a vertical cross-sectional view showing a state in which the wire harness having the branch portion of the wire harness of the same embodiment is applied to a vehicle.

FIG. 7 is a perspective view for explaining a method of fixing a branch portion of a conventional wire harness to a trunk line.

[Explanation of symbols]

10 wire harness 11 trunk lines 12 branch lines 13 connectors 14 tapes 15 Coarse winding part

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Claims (5)

(57) [Claims] 1. A branch wire branched from a trunk wire- wound wire harness is embedded in the trunk wire leaving a tip end portion, and the tip end portion is folded on the surface of the trunk wire.
Folding, and the branch portion of the wire harness, characterized in that, the folded portion of the branches line is enabled easily pulled out is rough wound in the tape. 2. The branch portion of the wire harness according to claim 1, wherein a connector for connecting a device is connected to a tip portion of the branch line. 3. The branch portion of the wire harness according to claim 1, wherein only the pins except the housing of the connector for connecting the device are connected to the tip of the branch line. . 4. The branch portion of the wire harness according to claim 1, which is used for connection to an electronic device additionally mounted in a vehicle such as an automobile. 5. After pulling out a branch line from the main line of the wire harness, the branch line is embedded in the main line with the tip portion left, and thereafter the branch line is roughly embedded in the embedded part and the remaining part is embedded in the main line. A method for setting a branch portion of a wire harness, which comprises winding a tape around the surface of the wire harness so as to be dense.