JP4178735B2 - Wire harness wiring board - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a wiring board for a wire harness.
[0002]
[Prior art]
Generally, wire harnesses used for wiring electrical components in automobiles and the like are configured by bundling a plurality of electric wires cut to a predetermined size, and are flexible, elongated in shape, and complicatedly branched. It has a structure. Assembling work of such a wire harness includes a work of transporting a wire harness wiring board along a manufacturing line and wiring an electric wire by an operator at a wiring station set in the manufacturing line.
[0003]
The wiring board has a drawing board for wiring an electric wire and a cradle for receiving the drawing board. The drawing board is a horizontally long plate-like work table to which a drawing showing the final form of the wire harness to be manufactured is attached, and in order to route the electric wires constituting the wire harness in its proper place, A number of holders called U jigs are provided upright. Further, in order to make it easier for the operator to perform the work, the drawing board is rigidly fixed on the cradle with the lower side thereof being inclined at a predetermined angle so as to be close to the operator. The operator applies tension to the covered electric wire having a cross-sectional area of the core wire of 0.3 mm ² or more, for example, on the holder of the drawing board, and the wiring dimension of the wired electric wire (the wire harness of the final form) Wiring work was performed while maintaining the finished dimensions.
[0004]
[Problems to be solved by the invention]
In recent years, it has become necessary to wire a covered electric wire having a cross-sectional area of a core wire of less than 0.3 mm ² as an electric wire arranged on the drawing board as described above.
[0005]
However, when such an extra fine wire is laid, there is a risk of disconnection even if a slight impact acts on the electric wire. Especially in the above wiring work, it is necessary for an operator to hold a single wire and to hang it on a holder (U jig). Shock is easily applied to a single unit. When such an impact is applied to the electric wire, the holder is rigid, or the drawing board itself is also rigidly fixed to the cradle, so the impact energy is absorbed by the electric wire itself, It becomes easy to break the electric wire due to the energy at the time of impact. On the other hand, in order to accurately maintain the wiring dimensions of the electric wires, the holders provided on the drawing board must be rigid, and the operator must maintain the required wiring dimensions. In addition, it is often necessary to apply tension to the electric wires that are stretched between the holders. For this reason, the above-described impact is likely to occur on the electric wire, and the operator still has to manually control the tension and impact acting on the electric wire.
[0006]
This invention is made | formed in view of the said malfunction, and makes it the subject to provide the wiring stand of the wire harness which can perform the wiring operation | work of an ultra fine wire easily.
[0007]
[Means for Solving the Problems]
In order to solve the above problems, the present invention relates to a wiring harness wiring board comprising a drawing board for wiring an electric wire constituting the wiring harness and a cradle for carrying the drawing board. provided between the plate and the pedestal, it comprises a resorbable energy absorbing means from Fig plate impact energy acting on the electric wire when laid wires on FIG plate, the energy absorbing means, the receiving Displace the drawing plate in the direction of the force applied to the electric wire when wiring the electric wire, allowing displacement of the drawing plate in the direction in which the drawing plate contacts and separates from the base and in the direction of lateral displacement. It is comprised so that the said impact energy may be absorbed by the wiring harness wiring board characterized by the above-mentioned .
[0008]
According to the present invention, when an operator grips a single wire and performs wiring, even when an impact is applied to the electric wire by accidentally hooking it somewhere on the drawing board or applying an excessive tension. The impact energy is absorbed by the energy absorbing means, and the electric wire can be protected. Therefore, even when the worker arranges extra fine wires (mainly those having a cross-sectional area of less than 0.3 mm ² ), the work can be performed while protecting the extra fine wires from impact energy.
[0009]
It is preferable that the energy absorbing means is connected to the drawing board via a drawing board attaching member that can attach and detach the drawing board.
[0010]
In this way, even when the drawing board mounted on the cradle is changed, the energy absorbing means can be used as it is, so that the energy absorbing means can be provided with versatility. There is an advantage that the setup can be easily changed.
[0011]
The energy absorbing means preferably includes an elastic body.
[0012]
If it does in this way, it will become possible to comprise an energy absorption means with a very simple structure.
[0013]
As a specific aspect of the elastic body, an elastic material such as rubber or sponge, or a spring member such as a leaf spring or a coil spring is suitable.
[0014]
When an elastic material such as rubber or sponge is employed, the elastic material may be attached to the entire surface of the drawing board.
[0015]
On the other hand, when a coil spring or a leaf spring is employed, it is preferable that a plurality of spring members are interspersed so that an uneven load is not generated. Furthermore, when a spring member is employed, it is preferable to use a spring seat in combination so as to provide a reliable energy absorption function.
[0016]
Furthermore, when a coil spring is employed, it is preferable to hold both ends thereof with spring sheets.
[0017]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.
[0018]
FIG. 1 is a simplified perspective view showing a wiring board 10 according to an embodiment of the present invention.
[0019]
With reference to the figure, the illustrated wiring board 10 includes a transport carriage 11 as a receiving base and a drawing board 20 attached on the transport carriage 11.
[0020]
In the illustrated example, the transport carriage 11 circulates along an endless production line in order to manufacture the wire harness WH by arranging the electric wire W. The caster 12 and the caster 12 A gantry 14 that can travel and a conveyor connection mechanism (not shown) are provided, and are driven by a carriage transport mechanism provided in the production line via the conveyor connection mechanism, so that they can circulate along the production line. Can be done. Note that the electric wire W, the cross-sectional area of 0.3 mm ² below the fine wire (specifically those things or 0.14 mm ² of 0.22 mm ² is) are included.
[0021]
The gantry 14 of the transport carriage 11 is formed into a substantially rectangular parallelepiped frame body using a metal pipe material (in the illustrated example, a square pipe is used). Specifically, the caster bottom portion is The lower frame portion 14a to be formed, the upper frame portion 14b constituting the top portion, and the columns 14c and 14d connecting the two are integrated by welding. Of the columns 14c and 14d, the one arranged at the rear part protrudes above the upper frame portion 14b and is reinforced by a horizontal beam 14e horizontally mounted on the upper end portion thereof. A conveyor connection mechanism is provided.
[0022]
Further, a figure frame 15 for carrying the figure board 20 is formed at the front part of the upper frame part 14b, and is fixed to the upper frame part 14b. The figure frame 15 is a metal frame formed along the longitudinal direction of the upper frame portion 14b, and is disposed in an inclined state so that the upper portion is lowered rearward. The upper frame portion is firmly fixed by the reinforcing member 16. 14b.
[0023]
In the illustrated embodiment, the figure plate 20 is attached to the figure frame 15 via a spring unit 30 as energy absorbing means described later.
[0024]
The said board 20 sticks drawing (not shown) on the surface of the board part 21, and many holders 22 for wiring the electric wire W which comprises the wire harness WH are standingly arranged. Although simplified in the drawing, the holder 22 is provided with various types according to the wiring form of the wire harness WH or corresponding to the connector C and exterior parts provided on the wire harness WH. And the operator can route the wire harness WH on this figure board 20 by arranging the electric wire W according to the predetermined wiring order.
[0025]
In the configuration as described above, the spring unit 30 is provided to absorb energy due to the impact received by the electric wire from the drawing board 20 when the operator arranges the electric wire on the drawing board 20. . As illustrated, the spring unit 30 is provided, for example, at eight locations around the drawing plate 20.
[0026]
2 is a schematic cross-sectional view of a portion where the spring unit 30 according to the embodiment of FIG. 1 is mounted, and FIG. 3 is an exploded perspective view of the spring unit 30 according to the embodiment of FIG.
[0027]
With reference to these drawings, the spring unit 30 includes a pair of spring seats 31 and 32 and a coil spring 33 as an elastic body whose ends are held by the spring seats 31 and 32 as main elements. is there.
[0028]
As shown in FIG. 3, each of the spring seats 31 and 32 has sleeves 31a and 32a that can hold the end of the coil spring 33, and flanges 31b and 32b integrated with the sleeves 31a and 32a. By attaching one flange 31b to the figure frame 15 and attaching the other flange 32b to the back side of the figure board 20, the figure board 20 is attached to the figure frame 15 so as to be elastically displaceable. In the illustrated example, the spring seat 31 attached to the figure frame 15 is provided with a flange 31b along the tangent line of the sleeve 31a, and the flange 31b is welded to the inner side surface of the figure frame 15. On the other hand, the spring seat 32 fixed to the drawing board 20 has a flange 32b on the end surface of the sleeve 32a, and is fixed to the lower surface of the drawing board 20 with a screw (not shown) inserted through a hole 32c provided in the flange 32b. Has been.
[0029]
FIG. 4 is a schematic partial sectional view of the wiring board 10 according to the embodiment of FIG.
[0030]
As shown in the figure, in the above configuration, when the wire during wiring is subjected to some impact, the coil spring 33 of the spring unit 30 expands and contracts as shown by the phantom line in the figure, so that the drawing board 20 By displacing the whole, it is possible to absorb the impact energy and thus protect the electric wire W. Accordingly, even when the extra fine wire is laid out, the intended laying operation can be performed without requiring the operator to pay great attention to the tension.
[0031]
The above-described embodiment is merely an example of a preferred aspect of the present invention, and the present invention is not limited to the above-described embodiment.
[0032]
FIG. 5 is a partially broken perspective view showing another embodiment of the present invention.
[0033]
As shown in the figure, when the spring unit 30 is interposed between the figure frame 15 and the figure board 20, a mounting plate 25 may be interposed between the spring unit 30 and the figure board 20. In the illustrated example, the mounting plate and the drawing plate 20 are detachably fixed by a bracket 26 and a bolt 27. In this case, there is no need to change each spring seat 31 even when the drawing plate 20 attached to the drawing frame 15 is changed, so that each spring seat 31 can have versatility. There is.
[0034]
FIG. 6 is a schematic sectional view showing still another embodiment of the present invention.
[0035]
The energy absorbing means is not limited to the spring unit 30 as described above. As shown in FIG. 6, an elastic plate 40 is provided between the drawing frame 15 and the drawing plate 20, and the elastic plate 40 is elastically deformed. You may make it absorb the impact energy which acts on the electric wire W. FIG. As a material of the elastic plate 40, urethane or rubber is suitable. In addition, when rubber is used, the surface may be provided with undulations to improve impact energy absorption performance.
[0036]
Although not specifically shown, the energy absorbing means may use a shock absorber constituted by an air cylinder.
[0037]
Moreover, although the wiring board 10 comprises the assembly drawing board of the wire harness WH, you may apply this invention to the conduction inspection drawing board which performs the conduction inspection of a wire harness as needed.
[0038]
In addition, it goes without saying that various design changes and specification changes are possible within the scope of the claims of the present invention.
[0039]
【The invention's effect】
As described above, according to the present invention, it is possible to perform work while protecting the extra fine wire from impact energy even when the operator arranges the extra fine wire. There is a remarkable effect that can be easily performed.
[Brief description of the drawings]
FIG. 1 is a perspective view schematically showing a wiring board according to an embodiment of the present invention.
FIG. 2 is a schematic cross-sectional view of a portion where a spring unit according to the embodiment of FIG. 1 is mounted.
FIG. 3 is an exploded perspective view of a spring unit according to the embodiment of FIG.
4 is a schematic partial cross-sectional view of a wiring board according to the embodiment of FIG.
FIG. 5 is a partially broken perspective view showing another embodiment of the present invention.
FIG. 6 is a schematic sectional view showing still another embodiment of the present invention.
[Explanation of symbols]
10 Wiring stand 11 Carriage cart (receiving stand)
15 Drawing frame (main part of cradle)
20 Drawing plate 25 Mounting plate (mounting member)
30 Spring unit (an example of energy absorbing means)
40 Elastic plate (an example of an elastic body constituting energy absorbing means)
WH wire harness

Claims (3)

In the wiring board of the wire harness provided with the figure board for wiring the electric wire which comprises a wire harness, and the cradle which supports this figure board,
Provided between the drawing board and the cradle, provided with energy absorbing means capable of absorbing impact energy acting on the electric wire from the drawing board when wiring the electric wire on the drawing board ,
The energy absorbing means allows a displacement of the drawing plate in a direction in which the drawing plate contacts and separates from the cradle and a direction in which the drawing plate is laterally displaced, and a direction of a force applied to the electric wire when wiring the wire. A wiring harness wiring board characterized in that the shock energy is absorbed by displacing the drawing board . In the wiring harness wiring board according to claim 1,
The wire harness wiring board according to claim 1, wherein the energy absorbing means is connected to the drawing board via a drawing board attaching member that is detachable from the drawing board. In the wiring harness wiring board according to claim 1,
The wire harness wiring board, wherein the energy absorbing means includes an elastic body.

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