JP3656463B2 - Curl wire harness manufacturing method and curl tube body - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a method of manufacturing a curled wire harness and a curled tube body, and more particularly, is applied to a vehicle and is interposed between a vehicle body panel and a glass hatch or the like provided to be openable and closable with respect to the panel. The present invention relates to a method of manufacturing a curled wire harness and a curled tube body.
[0002]
[Prior art]
In general, a large number of electrical components are mounted on an automobile or the like, and these electrical components are connected by a wire harness. In addition, automobiles are provided with members that can be opened and closed such as doors, trunks, and hatchbacks, and the amount of movement of these members that can be opened and closed and the wire harness connected to the vehicle body is large.
[0003]
In addition, recent wagons have been equipped with a glass hatch that can be opened and closed independently with respect to the back door. This glass hatch opens and closes compared to the amount of opening and closing of the back door. Since the amount is large, the amount of movement of the wire harness is large, and it is necessary to connect the wire harness to a wiper or the like provided outside the glass hatch, so the curl cord as shown in FIG. 3 is used. .
[0004]
In FIG. 3, reference numeral 1 denotes a vehicle body, and a glass hatch 3 that can be opened and closed independently is provided on a back door 2 that can be opened and closed at the rear of the vehicle body 1. The glass hatch 3 is provided with a wiper 4, and wire harnesses 6 and 7 having curl cords 5 are interposed between the wiper 4 and the back door 2. It is connected to electrical components provided in the vehicle body 1.
[0005]
Such a curled cord 5 is formed into a curl shape by winding a special coated electric wire around a metal rod and heating it with a dedicated molding machine. For example, as shown in FIG. Thus, a five-turn curl cord a and an eight-turn curl cord b are formed as shown in FIG. The curling cords a and b have a predetermined number of windings depending on the vehicle type.
[0006]
Further, in the wire harnesses 6 and 7 having the curled cord 5, the connector 5a provided at the end of the curled cord 5 is connected to the connector 6a attached to the end of the wire harness 6 provided on the vehicle body 1 side. By connecting the wire harness 6 and the curl cord 5, the wire harness 6 and the curl cord 5 are electrically connected. A connector 7 a connected to a connector 5 b provided at the end of the curl cord 5 is also provided at the end of the wire harness 7 provided between the curl cord 5 on the glass hatch 3 side and the wiper.
[0007]
[Problems to be solved by the invention]
However, in such a curl cord 5, a curl tube having the number of windings set according to the vehicle type must be formed each time by a dedicated molding machine, so that there is a problem that the production of the curl tube is troublesome. there were.
[0008]
Further, since the connectors 5a and 6b and the connectors 5b and 7a are connected when the wire harness 6 and the curl cord 5 are separately manufactured and mounted on the vehicle, the number of parts and the manufacturing man-hours of the wire harness 6 and the curl cord 5 are reduced. There is also a problem that the manufacturing cost of the wire harness 6 and the curl cord 5 is increased.
[0009]
Accordingly, the present invention can easily produce a curled wire harness having a different number of windings at low cost, and can curl a part of the linear wire harness easily. An object of the present invention is to provide a curl-shaped wire harness manufacturing method and a curl tube main body capable of significantly reducing the number of parts and the manufacturing process of a wire harness having the wire harness and reducing the manufacturing cost.
[0010]
[Means for Solving the Problems]
In order to solve the above-mentioned problem, the invention according to claim 1 prepares a curl tube body wound N times (where N is a natural number of 2 or more), and a curl tube having a predetermined number of turns from the curl tube body. After the wire is cut, a wire harness made of at least one electric wire is inserted into the curl tube, whereby the wire harness is formed in a curl shape along the curl shape of the curl tube.
[0011]
In that case, the curl tube of the necessary number of turns can be easily obtained without using a dedicated molding machine by cutting the curl tube of the necessary number of turns from the curl tube body wound N times in advance. .
[0012]
Then, by inserting a wire harness composed of at least one electric wire into the curl tube, the wire harness can be formed in a curl shape along the curl shape of the curl tube. There is no need to manufacture a wire harness and a curled wire harness (hereinafter referred to as a curl cord) separately and connect them with each other.
[0013]
As a result, the curl cord can be manufactured easily and inexpensively, and the number of parts and the manufacturing process of the wire harness having the curl cord can be greatly reduced, thereby reducing the manufacturing cost.
[0014]
In order to solve the above-mentioned problem, the invention according to claim 2 prepares a curl tube body wound N times (where N is a natural number of 2 or more), and a curl tube having a predetermined number of turns from the curl tube body. cut and, after inserting the wire harness composed of at least one or more wires to the curl tube, it is characterized in that the opposite ends of the curl tubes so as to secure the wire harness.
[0015]
In that case, after inserting a wire harness composed of at least one electric wire through the curl tube, both ends of the curl tube are moved toward the center of the extension direction of the curl tube so that both ends of the curl tube are connected to the wire harness. When fixed, the winding diameter of the curl cord can be easily changed.
[0016]
The invention described in claim 3 is a curl tube main body used in the method for manufacturing a curled wire harness according to claim 1 or 2 in order to solve the above-described problem, and N times (where N is 2 or more). It is characterized by being wound.
[0017]
In that case, the curl tube of the necessary number of turns can be easily obtained without using a dedicated molding machine by cutting the curl tube of the necessary number of turns from the curl tube body wound N times in advance. .
[0018]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[0019]
1 and 2 are views showing an embodiment of a curl-like wire harness manufacturing method and a curl tube body according to the present invention.
[0020]
First, the configuration will be described. In FIG. 1, reference numeral 11 denotes a curl tube main body made of a relatively high-rigidity resin, and the curl tube main body 11 is manufactured to be wound 10 times by a molding machine. In the present embodiment, the curl tube body 11 is taken as an example of 10 turns, but the curl tube body 11 is not limited to 10 turns, but any number of turns, that is, N turns (N is 2 or more). Any number of windings is possible as long as it is a natural number.
[0021]
Reference numeral 12 denotes a wire harness composed of at least one electric wire. The wire harness 12 is interposed between the vehicle body and the glass hatch as shown in FIG. The curl tube 11 of this embodiment is attached to the part.
[0022]
Next, the operation based on FIG. 2 (a) ~ (c) .
[0023]
First, the number of turns of curl tube according to the vehicle type from the curl tube body 11 wrapped 10 times (e.g., 5 turns) (see FIG. 2 (a)) was cut 13, to the curl tube 13 a wire harness ( by inserting at least one or more wires) branch harnesses 12a branched from 12, while along the wire harness 12 to the curl shape of the curl tube 11 to form the curled reference (Figure 2 (b)).
[0024]
Next, after curling both ends of the curl tube 11 to the center in the extending direction of the curl tube 11, the curl tube 11 is fixed to the branch harness 12a by wrapping the tape 14 around both ends of the curl tube 11 to thereby fix the curl cord. 15 is manufactured (see FIG. 2 (c)). Instead of winding the tape 14 around both ends of the curl tube 11, it may be fixed with a shrink tube or the like.
[0025]
Thereafter, the wire harness 12 is mounted on the vehicle body panel by attaching the wire harness 12 to the vehicle body panel and attaching the curl cord 15 to the glass hatch side.
[0026]
As described above, in this embodiment, the curl tube 13 having the necessary number of turns is cut from the curl tube main body 11 that has been wound 10 times without using a dedicated molding machine. Can be easily obtained.
[0027]
Then, by inserting the branch harness 12a through the curl tube 13, the branch harness 12a can be formed into a curl shape along the curl shape of the curl tube 13, so that the wire harness and the curl cord are connected as in the conventional case. There is no need to manufacture and connect connectors together.
[0028]
As a result, the curl cord 15 can be manufactured easily and inexpensively, and the number of parts and the manufacturing process of the wire harness 12 having the curl cord 15 can be greatly reduced to reduce the manufacturing cost.
[0029]
After the branch harness 12a is inserted into the curl tube 13, both ends of the curl tube 13 are moved toward the center in the extending direction of the curl tube 13, and both ends of the curl tube 13 are connected to the branch harness 12a with the tape 14. Since it is fixed, the winding diameter of the curl cord 15 can be easily changed.
[0030]
【The invention's effect】
According to the first aspect of the present invention, the curl tube having the necessary number of turns is cut from the curl tube body previously wound N times without using a dedicated molding machine. Can be easily obtained.
[0031]
Then, by inserting a wire harness composed of at least one electric wire into the curl tube, the wire harness can be formed in a curl shape along the curl shape of the curl tube. There is no need to manufacture the wire harness and the curled wire harness separately and connect the connectors together.
[0032]
As a result, the curl cord can be manufactured easily and inexpensively, and the number of parts and the manufacturing process of the wire harness having the curl cord can be greatly reduced, thereby reducing the manufacturing cost.
[0033]
According to the second aspect of the present invention, after inserting a wire harness composed of at least one electric wire through the curl tube, both ends of the curl tube are brought closer to the center in the extending direction of the curl tube. When both ends of the are fixed to the wire harness, the winding diameter of the curl cord can be easily changed.
[0034]
According to the third aspect of the present invention, the curl tube having the necessary number of turns is cut from the curl tube body that has been wound N times in advance, so that the curl tube having the necessary number of turns is not used with a dedicated molding machine. Can be easily obtained.
[Brief description of the drawings]
FIG. 1 is a view showing an embodiment of a method of manufacturing a curled wire harness and a curled tube body according to the present invention, (a) is an external view of the curled tube body, and (b) is the curled tube. It is an external view of the wire harness to which is attached.
FIG. 2 is a diagram illustrating a procedure for manufacturing a curl cord according to an embodiment.
3A is a schematic external view of a rear portion of a vehicle body, and FIG. 3B is a view showing a curl cord provided at the rear portion of the vehicle body.
4A and 4B are diagrams showing curl cords having different numbers of windings, respectively.
[Explanation of symbols]
11 Curl tube body
12 Wire harness
12a Branch harness
13 Curl tube
15 Curl cord (curled wire harness)

Claims (3)

Prepare a curl tube body wound N times (where N is a natural number of 2 or more), cut a curl tube of a predetermined number of turns from the curl tube body, and then connect at least one electric wire to the curl tube A method of manufacturing a curled wire harness , wherein the wire harness is formed in a curl shape along the curl shape of the curl tube by inserting the wire harness. A curl tube body wound N times (where N is a natural number of 2 or more) is prepared, a predetermined number of curl tubes are cut from the curl tube body, and the curl tube is composed of at least one electric wire. after inserting the wire harness manufacturing method of the curl tube characteristics and to Luca Lumpur shape of the wire harness that both end portions so as to secure the wire harness.   3. A curl tube body used in the method for manufacturing a curled wire harness according to claim 1 or 2, wherein the curl tube body is wound N times (where N is a natural number of 2 or more).

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