JPH10136530A - Method of wiring flat harness - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a method of wiring flat harness which makes it possible to form circuit wirings optionally, reduce the respective numbers of positions of connectors on the end parts of the respective circuit wirings, save the space of the connectors and facilitate the manufacture of a flat wiring harness. SOLUTION: In a flat harness 10, a wire 1g is cut and the part of the wire 1g on a 1st connector 18 side is removed. The cut point B of the wire 1g and the point A of a wire 1f are connected to each other to form a 1st joint part 1. A wire 1a is cut and the part of the wire 1a on the 1st connector 18 side is removed. The cut point C of the remaining wire 1a and the point D of a wire 1b are connected to each other to form a 2nd joint part 2. The part of the wire 1b between the point D and the point E of the wire 1b on a 2nd connector 19 side is cut and removed. The point E of the wire 1b and the point F of a wire 1d are connected to each other to form a 3rd joint part 3 so as to have the terminal 24 of a 3rd connector 20 and the terminal 22 of the 2nd connector 19 connected to the terminal 14 of the 1st connector 18.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a flat harness wiring method for reducing the number of poles of a connector connected to a terminal portion in a flat harness used in an electronic device or the like so as to save space for the connector.

[0002]

2. Description of the Related Art In a flat harness in which a plurality of electric wires are insulated and arranged in parallel, the electric wires can be formed flat and a plurality of wires can be arranged neatly. For this reason, it has been widely used for efficient wiring and space saving in response to the increase in the number of wires accompanying the recent spread of electronic devices, OA devices, and computer devices.

[0003] As described above, the flat harness is constituted by a plurality of parallel electric wires, so that the electric wires correspond one-to-one at both ends thereof in the arrangement order. Therefore, when a connector having the same terminal arrangement is connected to both terminals of the flat harness, the wires of the flat harness are connected to the terminals of the connector while maintaining the parallel arrangement. That is, the flat harness is a multi-wire cable in which conductors (electric wires) are arranged in a plane. And when connecting using a connector to both terminals of the flat harness, since the arrangement position is uniquely determined by both terminals, there is no need to confirm the position between each terminal to be connected and the other party Therefore, erroneous wiring hardly occurs and connection can be easily made.

[0004] However, depending on the equipment to which such a flat harness is applied, it may be necessary to wire the wire harness in a narrow place such as an automobile. In such a case, it is necessary to save the space for the connector. 8 and 9 are views showing a conventional flat harness wiring method that can save the space of a connector. That is, first, as shown in FIG.
A first connector 88 is connected to one end of a flat harness 70 in which seven wires 8a to 8g are arranged in parallel, each wire is insulated and coated, and the other end is three wires 8a. 8c and four wires 8d to 8g, the wires 8a to 8c are connected to the second connector 89, and the wires 8d to 8g are connected to the third connector 90. These first, second and third connectors 88, 89, 90
Are terminals 81 to 87, terminals 91 to 93, and terminal 94, respectively.
~ 97.

Then, as shown in FIG. 9, the terminal 84 of the first connector 88 and the terminal 92 of the second connector 89 are connected, and the terminal 86 of the first connector 88 and the third connector 90 are connected.
Is designed to be connected to the terminal 97 of the first connector 88, the electric wire 8b is cut.
b is removed. The position G on the electric wire 8b remaining after cutting and the position H on the electric wire 8d are connected by a conductive member such as a bus bar to form the first joint portion 8. Further, the wire 8g is cut, and the wire 8g on the first connector 88 side is removed. Then, the position J on the electric wire 8g remaining after the cutting and the electric wire 8f
The upper position I is connected in the same manner, and the second joint 9
To form In this case, the number of terminals required for the first connector 88 is sufficient for six electric wires.
4th connector 9 which has six terminals 91-96 instead of
8 can be used.

According to the conventional wiring method for a flat harness, the wiring can be rearranged by cutting and removing the electric wire to form a joint portion using a conductive member. Further, as a connector to be attached to the terminal portion of the flat harness, a connector 98 having six poles can be used instead of the first connector 88 having seven poles, and the connector can be downsized.

[0007] As described above, at both ends of the conventional flat harness, the connectors in which the terminals are arranged in accordance with the arrangement order of the electric wires are connected, and the seven electric wires 8a to 8a are connected.
8g, a connector 88 having seven terminals is connected at one terminal, and a connector 8 having three terminals at the other terminal.
9 and a connector 90 having four terminals are connected. Then, the first connector 88 of the electric wires 8b and 8g
Since the side part is unnecessary, it is cut and removed.

[0008]

However, FIG.
In the prior art shown in FIG. 9, even if unnecessary wiring is cut, the connector 88 for seven poles is changed from the connector 88 for six poles to the connector 98 for six poles for five circuits, and the miniaturization of the connector is insufficient. There is a problem that there is. Further, in the flat harness 70, since the electric wires are arranged side by side with a constant line pitch, the identification of the joint positions H and I shown in FIG. 8 becomes unclear, and the probability of a joint operation error is high. There is a problem that the product yield is reduced.

A technique has been proposed in which unnecessary wires are cut and removed, and then the outer wires are gathered near the center and connected to a small connector.
Before connecting the press contact terminal to the joint of the flat harness, it is necessary to adjust the width of the cut cable, which is disadvantageous in that the operation is complicated.

The present invention has been made in view of the above problems, and an arbitrary circuit wiring is formed by cutting and removing a part of an electric wire in a flat harness and forming a joint portion with a conductive member. It is another object of the present invention to provide a wiring method for a flat harness that can reduce the number of poles of a connector at a terminal portion of the flat harness, and can save space of the connector and facilitate manufacturing.

[0011]

According to a flat harness wiring method according to the present invention, in a flat harness wiring method in which a plurality of electric wires are insulated and arranged in parallel, one or more first electric wires from an outermost wire are connected. Cut in the middle to remove the first electric wire on one side, and remove the first electric wire on the other side remaining after cutting.
The electric wire and one or more inner second electric wires are connected by one or more first conductive members, and the second electric wire is cut in the middle, and the first conductive member of the second electrode is connected. The other side is connected to the other inner third electrode by a second conductive member.

In this case, the first and second conductive members are press contact terminals, and the first and second conductive members are disposed in one housing, and the housing is provided with the second and third conductive members.
It can be configured such that a positioning projection inserted into the cut portion of the electric wire is provided.

In the present invention, the number of poles of one connector is reduced to the same number as the number of wires connected to the connector (that is, unnecessary wires are not left and poles irrelevant to the connection are left in the connector). This does not remain), which is effective for space saving of the connector. Further, the wiring in the flat harness can be arbitrarily changed depending on the arrangement of the joint positions. Further, in addition to the above-described effects, by forming the joint portion using a housing having a positioning projection as a conductive member, the probability of a joint work error is reduced, and work efficiency is improved. Further, since the end of the flat harness is not divided, a conventional flat cable press-connecting connector can be used, and the advantage of collective connection can be maintained.

[0014]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention will be described.
This will be specifically described with reference to the accompanying drawings. 1 and 2 are conceptual views showing a wiring method of a flat harness according to an embodiment of the present invention, and FIGS. 3 and 4 are perspective views specifically showing the wiring method. The flat harness 10 has seven wires 1a to 1g arranged in parallel,
The first connector 18 is connected to the second connector 19 and the third connector 20, respectively. This first connector 1
8, the second connector 19 and the third connector 20 are respectively 7
Terminals 11 to 17, three terminals 21 to 23, and four terminals 24 to 27, each of the wirings 1a to 1g, and the terminal 11
To 17 and the terminals 21 to 27 are connected one-to-one.

In this embodiment, 1 g of the electric wire is cut,
The wire 1g on the first connector 18 side is removed. Then, the first joint portion 1 is formed by connecting the remaining cut portion B on the electric wire 1g and the position A on the electric wire 1f by using a conductive member such as a press-contact bus bar. In addition, electric wire 1
a, the wire 1a on the first connector 18 side is removed,
The position C on the remaining electric wire 1a and the position D on the electric wire 1b are connected by a conductive member such as a press-contact bus bar to form the second joint portion 2. Then, a portion between the position D and the position E on the second connector 19 side of the electric wire 1b is cut and removed. The position E on the electric wire 1b and the position F on the electric wire 1d are connected by a pressure welding bus bar or the like to form the third joint portion 3, and the terminal 14 of the first connector 18 is connected to the terminal 14 of the third connector 20. 24 and the terminal 22 of the second connector 19 are connected.

FIGS. 3 and 4 show a method of connecting between electric wires using a press-connecting bus bar. As shown in FIGS. 3 and 4, the electric wires 1 a to 1 g of the flat harness 10 have seven conductors 3.
3 and an insulating coating 32 covering the conductor 33. The electric wire 1b is cut in the middle, and a separation hole 34 is formed in this cut portion. In addition, electric wire 1a and electric wire 1g
Are cut in the middle, and the portions of the electric wires 1a and 1g on the connector 18 side are removed. Then, the branch connection component 35
In the housing 38, a press-connecting bus bar 36a for the first joint portion 1, a press-connecting bus bar 36b for the second joint portion 2, and a press-connecting bus bar 36c for the third joint portion 3
Are housed. Each insulation displacement bus bar 36
a, 36b, and 36c are positions A of the electric wires 1f and 1g, respectively.
B, positions C and D of the wires 1a and 1b and positions E and F of the wires 1b and 1c. And
In the housing 38, a protrusion 37 is provided upright at a position corresponding to the separation hole 34, and a stop claw 37a is provided in the middle of the protrusion 37.

The branch connecting component 3 configured as described above
5, the connecting component 35 for branching is inserted into the separation hole 34 from below the flat harness 10, and the side edge of the flat harness 10 is sandwiched between the pair of side walls 38 a of the housing 38. 1
Fit into 0. Then, since the relative positional relationship between the branch connecting component 35 and the flat harness 10 is determined to be a predetermined one by the projection 37 and the side wall 38a, the press-connecting bus bars 36a, 36b, 36c are respectively positioned at the predetermined position A. , B, positions C, D, and positions E, F, respectively, and breaks the insulation coating at each position to make contact with the internal conductor. Thereby, the positions A and B, the positions C and D, and the positions E and F are electrically connected. Since the projection 37 is provided with a pair of claws 37 a, when the projection 37 enters the separation hole 34, the projection 37 a is opened and the projection 37 is locked so as not to fall out of the separation hole 34. Thereby, the connecting component 35 for branching is fixed to the flat harness 10,
A predetermined position of each electric wire is connected.

The joint portion can be formed by various methods such as soldering, crimping, welding, welding, etc., in addition to the press contact terminal as in the above embodiment.

According to the wiring method of the flat harness of the present embodiment, it is possible to make a joint portion with a conductive member by cutting and removing the electric wire and to rearrange the wiring. Also,
As a connector to be attached to the terminal part of the flat harness, a fourth connector 28 having five poles can be used instead of the first connector 18 having seven poles. Can be
Further, since the joint portions are formed by using the press-contact bus bars 36a, 36b, and 36c as the conductive members and by the branching connection parts 35 on which the positioning projections 37 are arranged,
The identification of the joint portion position becomes clear, and the possibility of a work error is eliminated. Further, since the projection 37 is formed with the claw 37a, the housing 38 is moved by the claw 37a after the flat harness 10 is pressed.
0 can be prevented from being detached from the pressure bus bar 36a,
The connection between 36b and 36c and the flat harness 10 can be made secure.

Further, since the branching connection parts 35 are positioned by the positioning projections 37 by utilizing the separation holes formed by cutting and removing the electric wires, even if the wiring circuit is complicated and a large number of joints are present, they are collectively used. And can be easily pressed.

FIG. 5 is a conceptual diagram showing a wiring method of a flat harness according to a second embodiment of the present invention. As shown in FIG. 5, the flat harness 50 has eight electric wires 1a to 1h arranged in parallel, and both terminals thereof have a first electric wire 1a to 1h, respectively.
Connector 58, second connector 59, and third connector 60
And are connected. The first connector 58, the second connector 59, and the third connector 60 each have five terminals 6
A to 6E, three terminals 61 to 63 and four terminals 64 to
67. Terminals 6A, 6B, 6 of first connector 58
C is connected to the terminals 62 and 61 of the second connector 59 and the terminal 64 of the third connector 60, respectively. The terminal 6D of the first connector 58 is connected to the terminal 63 of the second connector 59 and the terminal 65 of the third connector 60, and the terminal 6E of the first connector 58 is connected to the terminals 66, 67 of the third connector 60.
It is connected to the. However, the terminal 6 of the first connector 58
B, 6D, and 6E are connected to the terminal 6 via the first joint 5, the second joint 6, and the third joint 7, respectively.
1, 63 and 67.

Then, the portions of the electric wires 1a, 1h on the connector 58 side are cut and removed, and the middle of the electric wire 1d is cut to form a separating hole 71. Also according to the wiring method of this embodiment, the number of poles of the connector 58 is sufficient to be five, and the connector can be downsized.

FIG. 6 is a view showing a third embodiment of the present invention. The same components as those in FIG. 5 are denoted by the same reference numerals, and detailed description thereof will be omitted. This embodiment is different from the embodiment shown in FIG. 5 in that the electric wire 5b is also cut in the middle to form a separating hole 72, and the electric wire 1a and the portion of the electric wire 1b on the connector 58 side are connected to the joint portion 5a. And a portion of the electric wire 1b on the connector 59 side and a portion of the electric wire 1c on the connector 59 side are connected by the joint 5b.

In this embodiment, the same effects as those of the embodiments shown in FIGS. 1 to 4 and 5 are obtained. In addition, the order of the terminals 6A, 6B, 6C, 6D and 6E in the connector 58 and the order of the connectors 59 and 60 Terminals 61, 62, 63, 64, 6
The order of 5, 66, 67 can be matched.

That is, in the flat harness wiring method of the present embodiment, the wiring in the flat harness 50 can be arbitrarily rearranged at both ends of the flat harness, so that the order of the connectors and the order of the wiring can be changed arbitrarily. Can be set. Therefore, as shown in FIG.
By appropriately changing and setting the positions of the joint portion and the flat harness separation holes 71 and 72, the first connector 58
Can be matched to the wiring order of the input signals.

FIG. 7 is a diagram showing a fourth embodiment of the present invention. This embodiment is different from the third embodiment shown in FIG. 6 in that a separation hole 73 is provided in the electric wire 1c to connect the electric wire 1c to the connector 58.
Side portion, the connector 59 side portion, and the intermediate portion 1h
And the other configuration is the same as that of the third embodiment. Therefore, in FIG. 7, the same components as those in FIG. 6 are denoted by the same reference numerals, and detailed description thereof will be omitted. In this embodiment, each joint part is connected by two branch connection parts 39 and 40. In this embodiment, the same effects as those of the third embodiment can be obtained.

[0027]

As described above, one or a plurality of the first
The electric wire is cut in the middle to remove the first electric wire on one side, and the first electric wire on the other side and the inner one or more second electric wires remaining after cutting are separated by one or more first conductive members. By connecting and forming a new circuit, the wiring in the flat harness can be arbitrarily rearranged, and the number of poles of one terminal connector can be reduced to the number of wires connected to that connector, The connector can be downsized. Further, since the wiring in the flat harness can be arbitrarily rearranged, the order of the connectors and the order of the wiring can be arbitrarily set. Further, by using the conductive member as a press contact terminal, the separation hole formed by cutting and removing the electric wire is easy to identify in the flat harness, so that the protrusion of the press contact bus bar is aligned with the separation hole and pressed. Is easy. Therefore, the probability of a joint work error is reduced, and work efficiency is improved. Furthermore, even if the wiring circuit in the flat harness becomes large, since the end of the flat harness is not divided,
Conventional press-connecting connectors can be used, and the advantages of batch connection can be maintained as before.

[Brief description of the drawings]

FIG. 1 is a schematic diagram showing a wiring method of a flat harness according to a first embodiment of the present invention.

FIG. 2 is a schematic diagram showing a wiring method of a flat harness according to the first embodiment.

FIG. 3 is a schematic diagram showing a method for connecting between electric wires using the press-connecting bus bar according to the first embodiment of the present invention.

FIG. 4 is a schematic diagram showing a method of connecting between electric wires using the press-connecting bus bar according to the first embodiment.

FIG. 5 is a schematic view illustrating a wiring method of a flat harness according to a second embodiment of the present invention.

FIG. 6 is a schematic diagram showing a wiring method of a flat harness according to a third embodiment of the present invention.

FIG. 7 is a schematic diagram illustrating a wiring method of a flat harness according to a fourth embodiment of the present invention.

FIG. 8 is a schematic view showing a conventional flat harness wiring method.

FIG. 9 is a schematic view showing a conventional flat harness wiring method.

[Explanation of symbols]

10, 50, 70; flat harnesses 18, 19, 20, 28, 58, 59, 60, 88, 8
9, 90, 98; Connectors 1, 2, 3, 5a, 5b, 6, 7, 8, 9; Joints 34, 71, 72, 73, 74; Separation hole 35; Branching connection component 35a; Housing 36a; 36b, 36c; press-contact bus bar 37;

 ────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Takehisa Ide 1-5-1, Kiba, Koto-ku, Tokyo Inside Fujikura Co., Ltd. (72) Atsushi Mochizuki 1-5-1, Kiba, Koto-ku, Tokyo Stock Company Inside Fujikura

Claims (2)

[Claims] In a flat harness wiring method in which a plurality of electric wires are insulated and arranged in parallel, one or a plurality of first electric wires are cut off from the outermost part in the middle and the first first electric wire on one side is cut off.
The electric wire is removed, the first electric wire on the other side remaining after cutting and the inner one or more second electric wires are connected by one or more first conductive members, and the second electric wire is further cut in the middle. ,
A wiring method for a flat harness, wherein a portion of the second electrode to which the first conductive member is not connected and a third inner electrode are connected by a second conductive member. 2. The first and second conductive members are press contact terminals, and the first and second conductive members are disposed in one housing, and are inserted into a cut portion of the second electric wire in the housing. The wiring method for a flat harness according to claim 1, wherein a positioning projection is provided.