JP3435679B2 - Harness manufacturing jig and harness manufacturing method - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a harness manufacturing jig and a harness manufacturing method for finishing a part of a wire harness composed of a plurality of electric wires into a flat shape.

[0002]

2. Description of the Related Art FIG. 9 shows a conventional method for manufacturing an automobile wire harness. In this method, a plurality of electric wire guide tools (U forks) 72 are erected at required positions on a wiring board 71, and each electric wire 73 is hooked on the guide tools 72 to perform wiring in a required shape. The electric wire 73 is branched from the main line portion 74 to the left and right. A connector (not shown) is provided at the tip of the branch line. After wiring, a tape (not shown) is wound around the electric wire 73 to complete the wire harness.

However, in the above-mentioned conventional method, there is a problem that the tape winding portion becomes hard especially in the main line portion 74, and the workability of assembling into a narrow portion of the vehicle is deteriorated.

In order to solve this problem, means shown in FIG. 10 is adopted. This means forms the intermediate portion of the wire harness 79 into a flat shape by using two front and rear comb-teeth-shaped electric wire guides 75 and 76. The guides 75 and 76 are provided with a plurality of pins 77 and 78 in parallel at equal intervals. Worker is a wire harness 7
Each of the electric wires 80 of 9 is a pin 77, 77 and 78, 7
Wire between 8. Then, the adhesive sheet 81 is attached to the flat-shaped portion 82 to complete the partially flat wire harness 79. The wire harness 79 is assembled by arranging the flat portion 82 in a narrow gap of the vehicle.

[0005]

However, in the above-mentioned conventional means, the pins 77, 7 of the guides 75, 76 are arranged so that a part of the wire harness 79 becomes flat.
Since it was necessary to evenly wire the electric wires 80 one by one to 8, the workability was poor, and a lot of man-hours were required. There is also a problem that the state of the flat portion 82 varies depending on the operator.

In view of the above points, it is an object of the present invention to provide means for easily forming a flat-shaped portion of a wire harness without variations among operators.

[0007]

In order to achieve the above object, the present invention comprises two guide tools having wire holding slits narrower than the wire diameter, and one guide tool is fixed.
The other harness is a first harness manufacturing jig that can move in the longitudinal direction of the wire. The wire holding slit is
Consists of slits with multiple widths according to various wire diameters,
It is also possible that the width of the slit portion gradually increases from the bottom side of the wire holding slit to the inlet side. Further, a guide rail arranged in the wire laying direction, a pair of guide tools slidably engaged with the guide rails, a telescopic rod provided on the guide tool and capable of expanding and contracting in a direction orthogonal to the electric wire, A second harness manufacturing jig composed of a plurality of electric wire partition pins provided on the rod is adopted. It is also possible that the expandable rod is composed of a plurality of cylindrical rods having different diameters, and the electric wire partitioning pin is provided in a protruding manner on each cylindrical rod. Further, it is possible that a handle for moving operation is provided on the guide tool and the telescopic rod. Further, the guide rail may be provided with a scale for positioning with respect to the guide tool. Also, a harness manufacturing method for manufacturing a wire harness using the first harness manufacturing jig, wherein a plurality of electric wires are inserted in parallel in the electric wire holding slits of both guide tools, and then the other guide tool is used. A harness manufacturing method is adopted in which tension is applied to each electric wire to obtain a flat-shaped portion by moving the electric wire in the electric wire longitudinal direction. Further, it is a harness manufacturing method for manufacturing a wire harness using a second harness manufacturing jig, wherein a pair of guide tools are brought close to each other, and the expansion rod is contracted, and between the electric wire partition pins. By inserting the wires and extending the expansion rod of each guide tool in the direction orthogonal to the wire, the space between each wire is widened, and by moving each guide tool in the separating direction, the wire space is widened in a wide range and flat shape. The harness manufacturing method for obtaining parts is adopted.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Specific examples of embodiments of the present invention will be described in detail below with reference to the drawings. 1 and 2 show a first embodiment of a harness manufacturing jig according to the present invention.

The harness manufacturing jig 1 is composed of two guide tools 2 and 3 arranged one by one in the front and rear of the wire laying direction. Each guide tool 2, 3 has a base part 4, 5 for mounting.
And columns 6 and 7 standing upright from the bases 4 and 5, and wire-clamping heads 8 and 9 integrally or separately provided at the tips of the columns 6 and 7.

Each electric wire holding head 8, 9 has a vertical electric wire holding slit 10, 11 in the center. As shown in FIG. 2, the inner widths of the wire holding slits 10 and 11 are formed slightly smaller than the outer diameter of the wire 12. In this example, the slit width is set stepwise from the bottom portion 13 side of the electric wire holding slit 10 to the inlet 14 side corresponding to the electric wires 12 _{1 to} 12 ₃ of various diameters.

On the bottom side of the wire holding slits 10 and 11,
Sectional area 0.5sq (mm ²⁾ the minimum width the slit portion 10 ₁ of the relative wire 12 _1, the intermediate portion of the wire clamping slit 10, 11, the slit portion 10 ₂ of the intermediate width to wire 12 ₂ 1,25Sq, wire 2 on the entrance side of the holding slit 10.
Slits 10 ₃ having the maximum width with respect to the electric wire 12 ₃ of sq are continuously formed. The electric wires 12 are inserted into the electric wire holding slit 10 from the inlet 14 in the order of decreasing diameter, and are arranged in a vertical line. The electric wire holding slit 10 holds each electric wire 12 in a stable manner by sandwiching the insulating resin coating 12a of the electric wire 12.

In FIG. 1, the guide 2 on the front side in the wire laying direction has a base portion 4 fixed to a wire laying plate 15. The rear guide 3 is slidably engaged with a guide rail 16 on the wiring plate 15. The guide rail 16 extends in the wire laying direction (longitudinal direction). A slider 17 such as an LM guide is provided under the base portion 5, and the slider 17 is engaged with the guide rail 16. Stoppers 18 may be provided before and after the guide rail 16.

Existing substantially Y-shaped guide tools (U forks) 19 and 20 are fixed to the wiring board 15 before and after the guide tools 2 and 3. The main line portion 24 of the wire harness 23 is placed on the front U fork 19, and the branch lines 25 and 26 are separated from the U fork 19 to the left and right, and the front U fork 2 is provided.
1, 22 are mounted. The wire harness 23 is hooked and fixed to the U fork 19 at the branch portion 27. The rear U fork 20 is arranged behind the guide rail 16.

At the time when the rear guide tool 3 is located on the front end side of the guide rail 16 (the state shown in FIG. 1), a certain distance L is set between the front guide tool 2 and the rear guide tool 3. Has been done. The guide tool 3 on the rear side from that position is the guide rail 16
It can be slid backward along the direction of arrow S.

Although the wire holding heads 8 and 9 are positioned in the vertical direction in this example, it is possible to form the wire holding heads horizontally from the columns 6 and 7. In this case, the electric wire 12 is inserted into the holding slit from the side, not from above.

A harness manufacturing method (electric wire flat alignment method) using the harness manufacturing jig 1 will be described below. First, as shown in FIG. 1, the rear guide tool 3 is attached to the guide rail 1.
It is located on the front end side of No. 6. Next, connect the wire 12 to the front U
The U fork 20 on the rear side is inserted through the sandwiching slits 10 and 11 of the two guide tools 2 and 3 via the fork 19 respectively.
Wiring up to (U of course, you may wire up to the U fork not shown in the figure). The electric wires 12 are inserted into the two guide tools 2 and 3 one by one from the bottom side of the holding slits 10 and 11. Thereby, the electric wires 12 are arranged in a line in the vertical direction, that is, in a flat shape.

Then, the rear guide tool 3 is slid as shown by arrow S. As a result, tension is applied to each electric wire 12, and the flat portion 28 of the wire harness 23 is formed in a taut state. The length of the flat portion 28 is defined by the total of the initial distance L between the guide tools 2 and 3 and the slide amount S. A resin tape 29 is wound around the flat portion 28 with tension applied. Instead of tape winding, a resin adhesive sheet (see FIG. 8) may be attached.

The flat-shaped portion 28 can be easily formed in the wire harness 23 by the above-mentioned harness manufacturing jig and harness manufacturing method. The flat portion 28 improves the assemblability of the wire harness 23 to a narrow portion of the vehicle, and increases the bendability to facilitate the wiring to other portions. The above configuration is also effective as a method for manufacturing a flat electric wire.

3 to 8 show a second embodiment of the harness manufacturing jig. This harness manufacturing jig 31
A guide rail 33 arranged in the wire laying direction on the wiring plate 32 (FIG. 8), and a pair of guide tools 34, 3 that can move back and forth in the wire laying direction along the guide rail 33 as indicated by arrows a and b.
5 and expandable rods 38 and 39 that are provided in the guides 34 and 35 so as to be extendable and contractible in the direction orthogonal to the electric wires (lateral direction) as indicated by arrows c and d, and have a plurality of electric wire partitioning pins 36 and 37. .

The guide rail 33 is formed in a tubular shape with a rectangular cross section, and has a slit hole 41 in the upper wall 40 in the longitudinal direction. On the bottom wall 42 of the guide rail 33, the wiring plate 32
A bolt 43 for fixing to is vertically provided. Base blocks (sliders) 44 and 45 of the respective guides 34 and 35 are opposed to and slidably engaged in the guide rail 33.

The base block 44, 45 has a column 47,
48 is provided upright, and substantially cylindrical support tubes 49 and 50 are integrally provided at the tips of the columns 47 and 48 in the wire orthogonal direction (lateral direction). The columns 47 and 48 extend vertically through the slit hole 41. On the upper wall 40 of the guide rail 41, a scale for confirming the positions of the columns 47 and 48
51 is provided at the edge of the slit hole 41. A triangular mark 52 is provided on the central portion 51 of the scale. The pair of guide tools 34 and 35 are provided with a triangular mark 5 in front of the electric wire laying.
It is placed close to the front and back with the boundary of 2.

Handles 53, 54 are provided at the central portions of the respective support tubes 49, 50 so as to face forward or backward. By pulling the handles 53, 54 in opposite directions, the guide 3
4,35 back and forth movement is possible. Slit holes 55 and 56 are formed in the upper portion of the support tubes 49 and 50 in the longitudinal direction. The slit holes 55 and 56 are cut out over the entire length from one end to the other end of the support tubes 49 and 50. Telescopic rods 38, 39 are held inside the support tubes 49, 50.

As shown in FIGS. 4 to 5, the telescopic rods 38 and 39 are provided.
Short cylindrical rod 57 of a plurality of different diameters (57 ₁ to 57 ₆₎
Is a combination of, for example, a radio antenna that can expand and contract. That is, (also acceptable where only solid rod) 57 ₁ is formed on the outermost diameter cylindrical rods at both ends, gradually tube slider 57 _2-57 will increase the ₆ diameter, cylindrical tip slider 57 ₁ toward the center below was inserted into the second diameter of the cylindrical rod 57 ₂ of the inner diameter portion 70, by inserting the cylindrical rod 57 ₂ to the inner diameter of the next cylinder rod 57 _3, and assembled in the same manner to the central portion. Since the expansion and contraction rods 38 and 39 have the same configuration, the expansion and contraction rod 38 will be described with reference to FIGS.

An electric wire partition pin 36 is provided at the tip of each cylindrical rod 57.
(36 _{1 to} 36 ₆ ) are provided so as to project upward. Each pin 36 _{1-36 6} tip height is set to the same.
Moreover, the handle in the horizontal direction on the tip of the cylindrical rod 36 ₁ of the two ends 58
Is provided. As shown in FIG. 3, a pair of guide tools 34, 35
In, handles 58 and 59 are formed symmetrically.

As shown in FIG. 5, a stopper 6 is provided at the rear end of each cylindrical rod 57.
0 and a slit 61 capable of slidingly engaging the stopper 60
And may be provided. The stopper 60 is provided when the cylindrical rod 57 is extended.
A locking protrusion 62 for temporarily locking the
You can turn it off. Center rod 57 ₆Is fixed to the support tube 49
As a result, the expansion rod 38 has a uniform length from both sides of the support tube 49.
It is possible to project. Note that the number of wire division pins 36 is small.
If not, the tip rod 36₁To the central rod 36₆Well
The expansion rod 38 may be configured with.

6 to 8 show the harness manufacturing jig 31.
Harness manufacturing method using (wire flat alignment method)
Indicates. First, as shown in FIG. 6, a pair of front and rear guide tools 34, 35.
And the expansion rods 38 and 39 are supported by the support pipes 49 and 5.
With the wire harness 63 compressed and stored in
The central portion of each exposed wire 64 is connected to each wire partition pin 36,
Inserted between 36 and 37, 37, respectively. Electric wire 6
Both sides of 4 are bundled with tape 65. Each electric wire 64
And the pitch of the pins 36, 36 and 37, 37 are substantially the same.

Next, as shown in FIG. 7, a pair of guide tools 34, 3
The left and right handles 58, 58 and 59, 59 of 5 are simultaneously hooked by the operator's fingers and pulled outward at the same time, and the telescopic rods 38, 3
9 is extended in the direction orthogonal to the electric wire. The telescopic rods 38 and 39 extend to the state shown in FIGS. As a result, each of the electric wires 64 is laterally pressed by the partitioning pins 36 and 37 and is expanded into a substantially rhombic shape.

Next, as shown in FIG. 8, front and rear guide members 34, 3
5 is slid along the guide rail 33 in the longitudinal direction of the electric wire. This slide movement is performed by the front and rear handles 53, 54.
Is performed by the operator pulling back and forth. In addition, the pillar 4
The guides 34, 35 may be moved by grasping the 7, 48. Each partition pin 36, 37 moves along the electric wire 64. As a result, the electric wires 64 are spread in a flat shape in the front-rear direction and are separated in the left-right direction at equal pitches in an average and parallel manner to form a flat-shaped portion 66. The length of the flat-shaped portion 66 is determined by looking at the scale 51 and guiding tools 34, 3
It is easily defined by moving 5.

Finally, an adhesive sheet 67 made of synthetic resin is sandwiched between the flat-shaped portions 66 from above and below in a sandwich form, and the electric wires 64 are fixed in a spread state. The adhesive sheet 67 is folded back from the center. As a result, the flat state is maintained even if the flat portion 66 is removed from the jig.

According to this embodiment, it is not necessary to hang the electric wire on the guide tool while spreading the electric wire by hand as in the conventional case.
By moving the 8, 39 and the guides 34, 35, it is possible to easily and quickly obtain the flat-shaped portion 66 that is evenly spread. Further, there is no variation in the shape such as the thickness of the flat portion 66 due to the operator, and the quality of the wire harness 63 is stable.

[0031]

As described above, according to the invention described in claims 1 and 7, each wire is pulled by moving the guide after inserting each wire into the wire holding slit, so that each wire is pulled evenly and cleanly. The flat-shaped portion is formed easily and quickly. As a result, the number of man-hours required for the work is reduced, and the variation of the product among workers is eliminated. Moreover, according to the invention of claim 2, it is possible to easily and reliably form a flat-shaped portion in which a plurality of types of electric wires are mixed.

According to the inventions of claims 3 and 8,
The flat-shaped portion can be quickly obtained by a simple operation of extending the expansion rod and moving the guide tool. As a result, the number of man-hours required for the work is reduced, and the variation of the product among workers is eliminated. Further, according to the invention of claim 4, since the wire partitioning pins are spread at equal intervals by extending each of the cylindrical rods, a clean flat-shaped portion in which the wires are uniformly separated can be obtained. Further, according to the invention of claim 5, by pulling the handle, the movement operability of the guide tool and the telescopic rod is improved.
Further, according to the invention of claim 6, the length can be accurately defined in the flat portion.

[Brief description of drawings]

FIG. 1 is a perspective view showing a first embodiment of a harness manufacturing jig according to the present invention.

FIG. 2 is a front view showing the wire holding head of the harness manufacturing jig.

FIG. 3 is a perspective view showing a second embodiment of a harness manufacturing jig.

FIG. 4 is a perspective view showing the expansion rod as well.

FIG. 5 is a vertical cross-sectional view showing a telescopic rod.

FIG. 6 is a perspective view showing a state in which an electric wire is inserted between pins of a harness manufacturing jig.

FIG. 7 is a perspective view showing a state in which a telescopic rod is extended.

FIG. 8 is an exploded perspective view showing a state in which a guide tool is moved back and forth and an adhesive sheet is attached to a flat portion.

FIG. 9 is a perspective view showing a conventional harness manufacturing method.

FIG. 10 is an exploded perspective view showing a conventional means for obtaining a flat-shaped portion.

[Explanation of symbols]

1,31 Harness manufacturing jig 2,3,34,35 Guide tool 10,11 Electric wire holding slit 10 ₁ -10 ₃ Slit part 12,64 Electric wire 16,33 Guide rail 23,63 Wire harness 28,66 Flat shape part 36 (36 _{1 to} 36 ₆ ), 37 Electric wire partitioning pins 38, 39 Expansion rod 51 Scales 53, 54, 58, 59 Handles 57 _{1 to} 57 ₆ Cylindrical rod

─────────────────────────────────────────────────── ─── Continuation of front page (56) References JP-A-2-65008 (JP, A) JP-A-8-339724 (JP, A) JP-A-5-62542 (JP, A) Actual Kaihei 5- 65015 (JP, U) (58) Fields surveyed (Int.Cl. ⁷ , DB name) H01B 13/00 H01B 13/012

Claims (8)

(57) [Claims] 1. A two guide tool having an electric wire holding slit narrower than the electric wire diameter, one guide tool being fixed,
A harness manufacturing jig, wherein the other guide is movable in the longitudinal direction of the electric wire. 2. The electric wire holding slit is composed of slits having a plurality of widths corresponding to various electric wire diameters, and the width of the slit portion gradually increases from the bottom side to the inlet side of the electric wire holding slit. The harness manufacturing jig according to claim 1, wherein: 3. A guide rail arranged in the wire arranging direction, a pair of guide tools slidably engaged with the guide rail, and a telescopic rod provided on the guide tool and capable of expanding and contracting in a direction orthogonal to the electric wire. And a plurality of electric wire partitioning pins provided on the expandable rod, a harness manufacturing jig. 4. The harness manufacturing jig according to claim 3, wherein the telescopic rod is composed of a plurality of cylindrical rods having different diameters, and the electric wire partitioning pin is projectingly provided on each of the cylindrical rods. 5. The harness manufacturing jig according to claim 3, wherein the guide and the telescopic rod are provided with a handle for a moving operation. 6. The harness manufacturing jig according to claim 3, wherein the guide rail is provided with a scale for positioning with respect to the guide tool. 7. A harness manufacturing method for manufacturing a wire harness using the harness manufacturing jig according to claim 1, wherein a plurality of electric wires are inserted in parallel in the electric wire holding slits of both guide tools. After that, the other guide tool is moved in the longitudinal direction of the electric wire to apply tension to each electric wire to obtain a flat-shaped portion. 8. A harness manufacturing method for manufacturing a wire harness using the harness manufacturing jig according to any one of claims 3 to 6, wherein a pair of guides are brought close to each other, and a telescopic rod is contracted. In this state, insert an electric wire between the electric wire partition pins, and extend the telescopic rod of each guide tool in the direction orthogonal to the electric wire to widen the interval between the electric wires and move each guide tool in the separating direction. A method for manufacturing a harness, characterized in that a flat-shaped portion is obtained by widening an interval between electric wires in a wide range.