JP7239303B2 - Routing state presentation method, routing state presentation device, and drawing data conversion method - Google Patents

Description

The present invention relates to a wiring state presentation method, a wiring state presentation device, and a drawing data conversion method for outputting information representing the wiring configuration of wire harnesses and intermediate parts thereof.

In a vehicle, for example, it is necessary to individually supply power from a power source such as a main battery and an alternator (generator) to each of the many electrical components placed in various locations on the vehicle. be. Also, multiple electronic control units (ECUs) need to be interconnected so that they can communicate with each other. In addition, it is necessary to transmit signals output by various switches and sensors to a predetermined electronic control unit. In addition, it is necessary to individually control the on/off of various loads according to the signals output from the electronic control unit.

Therefore, in a general vehicle, each part of a wire harness, which is an assembly of many electric wires, is arranged along a predetermined wiring route on the vehicle, and each part on the vehicle is connected via the wire harness. .

In practice, several hundred wires, terminals, connectors, clamps, and other components are assembled according to the details of the design drawings, and arranged along the wiring route specified in the design drawings. The formed wire harness product is manufactured by a parts manufacturer. Then, the vehicle manufacturer manufactures the vehicle by assembling the wire harness purchased from the parts manufacturer to the vehicle body.

When manufacturing such wire harnesses, various matters such as overall weight reduction, workability during manufacturing, manufacturing cost reduction, and manufacturing quality must be considered. Therefore, various techniques related to wire harnesses have been conventionally proposed.

For example, Patent Literature 1 discloses a technique for optimizing joint positions from the viewpoint of total weight and cost when manufacturing a vehicle circuit body such as a wire harness. Specifically, based on the basic design data representing the configuration of the vehicle circuit body, visual information representing the wiring route and configuration of the vehicle circuit body is displayed on the screen, and joint part designation and optimization instructions are displayed. , automatically calculates the length of each wire and the total wire length when joint parts are placed at each of the different positions, and reflects the comparison result of the total wire length for each calculated position. , to display the optimal position of the joint site. It also displays the difference in total line length due to different positions. In addition to the total line length, changes in total weight and costs are considered to automatically determine the optimum position. Selection of positions other than the determined optimal position is also accepted.

Further, the manufacturing support method of Patent Document 2 shows a technique of outputting a number that is useful for improving the efficiency of work such as manufacturing, inspection, design change examination, etc. of a wire harness. Specifically, unique address information is generated for each node that represents each measuring point on the wire harness, the address information is assigned to the node on the output design drawing data, and when determining the number of the address information , assign numbers sequentially along the route of the wiring harness. Number assignment is started with the element position selected by user input as a base point. A smaller number is preferentially assigned to a node closer to the terminal in the routing route. When processing a branch node representing a branch point in a routing route, a smaller number is preferentially assigned to an attribute representing the characteristics of the branch node. A number with a small number of digits can be used, making it easier to grasp the connection relationship.

JP 2018-67104 A JP 2018-67431 A

By the way, for example, when a wire harness to be mounted on a vehicle manufactured by a vehicle manufacturer (Company A) is manufactured by a parts manufacturer (Company B), normally design drawing data (Section 1 design drawing data) is provided from A company to B company. This design drawing data is data that can be used on a specific CAD (Computer Aided Design) system introduced by Company A, and is created as data in a format that is easy for Company A to use.

Company B manufactures wire harness products based on the design drawing data received from Company A. In addition, after confirming that the manufactured wire harness product satisfies the specifications required by Company A through an inspection including actual measurement of dimensions, Company B delivers the wire harness product that has passed the inspection to Company A. Company A mounts the wire harness delivered by Company B on a specific vehicle body and manufactures the vehicle.

In the environment as described above, Company B manufactures wire harnesses so as to conform to the first design drawing data received from Company A, but the first design drawing data is expressed in a format that is easy for Company A to use. Therefore, it is not expressed in a format that is easy for Company B to use when manufacturing wire harnesses.

Specifically, Company A gives priority to consolidating and expressing the connection relationships between each part of the wire harness and various in-vehicle devices in a drawing of a limited size. Therefore, in the first design drawing data, each element of the wire harness is represented in a form such as length, size, and shape different from the actual dimensions.

However, when Company B actually manufactures wire harnesses, in an actual three-dimensional space on a jig plate, workers sequentially process a large number of parts such as wires of various lengths, connectors, terminals, and exterior materials. , and arrange them so that they pass through the pre-determined wiring route and carry out the assembly work.

Therefore, in a situation in which various parts are arranged and assembled, the dimensions, shapes, etc. of each part do not match the contents of the first design drawing data. Therefore, if Company B manufactures the wire harness based only on the first design drawing data, the work procedure for assembly, the wiring route of each wire, etc. will be in an inappropriate state, resulting in It becomes difficult to reduce part costs and manufacturing costs.

Therefore, in Company B, prior to the start of manufacturing of wire harnesses, an assembly drawing representing the actual wiring route and its flow of each wire material for each sub-assembly (ASSY) that constitutes the wire harness is created by hand by the designer. Was. Also, the worker manufactures each subassembly of the wire harness while referring to both the assembly drawing and the first design drawing data.

Furthermore, a prototype of each subassembly was created in order to confirm the wiring workability when actually manufacturing the wire harness. Then, the designer reexamined the wiring route, etc., while looking at the created prototype. In addition, as a result of examination, when a change was required, a new assembly drawing was created again by the designer's handwriting, and a prototype was also created. Therefore, a lot of manpower and man-hours were required for the preparation from when company B received the first design drawing data to when it started manufacturing the wire harness.

Also, as a practical problem in the manufacture of wire harnesses, it is necessary to avoid entanglement between a plurality of electric wires. Therefore, it is necessary to optimize the wiring route of each electric wire that constitutes the wire harness.

Therefore, for each sub-harness, which is an intermediate part that makes up the wiring harness, the designer manually creates a diagram of the wiring configuration that shows the connection between each connector at the end and each electric wire each time. We were examining the presence or absence of occurrence and the optimization of the work order. It was also necessary to create a prototype of the wire harness in order to confirm that entanglement would not occur.

SUMMARY OF THE INVENTION The present invention has been made in view of the circumstances described above, and an object of the present invention is to provide a wiring state presentation method, a wiring state presentation device, and a drawing that facilitate examination of the occurrence of entanglement between electric wires in the process of manufacturing a wire harness. The object is to provide a data conversion method.

In order to achieve the above object, the routing state presentation method, the routing state presentation device, and the drawing data conversion method according to the present invention are characterized by the following (1) to (6).
(1) A computer is used to output information representing the wiring configuration of a wire harness that includes a plurality of electric wires and has at least a plurality of mutually independent end parts attached to the ends thereof, or an object to be manufactured corresponding to intermediate parts thereof. A routing state presentation method for
to the computer;
inputting first drawing data representing the configuration of the object to be manufactured;
Based on the first drawing data, a plurality of end parts constituting the object to be manufactured are aligned along the direction of the first axis in the output coordinates, and
arranging connection information representing a wiring configuration of a plurality of electric wires connecting between the plurality of end pieces in a direction deviated from the first axis based on the positions of the arranged end pieces;
executing a process of generating second drawing data, which is second drawing data representing the arrangement form of the object to be manufactured, and which includes the arrangement state of the plurality of end parts and the arrangement state of each piece of connection information;
A routing state presentation method characterized by:

(2) to the computer,
executing a process of configuring the connection information by a V-shaped connection line including a first straight line and a second straight line extending in an oblique direction with respect to the first axis;
The routing state presentation method according to the above (1), characterized by:

(3) to the computer,
Determining the output length of the connection information at the output coordinates based on the actual size of the corresponding part in the first drawing data, and executing a process of maintaining a constant ratio between the output length of each connection information and the actual size. let
The routing state presentation method according to the above (1), characterized by:

(4) to the computer,
When a predetermined input instruction is received,
changing the order of arrangement of the plurality of end parts,
Relocate each connection information according to the position of each end part after replacement, execute processing,
The routing state presentation method according to any one of the above (1) to (3), characterized by:

(5) Wiring state presentation for outputting information representing the wiring configuration of a wire harness that includes a plurality of electric wires and has at least a plurality of mutually independent end parts mounted at the ends thereof, or an object to be manufactured corresponding to intermediate parts thereof. a device,
input means for inputting first drawing data representing the configuration of the object to be manufactured;
aligning means for aligning a plurality of end parts constituting the object to be manufactured according to the first drawing data input to the input means in a state of aligning them along a direction of a first axis in output coordinates;
Based on the positions of the plurality of end parts aligned by the aligning means, connection information representing a wiring configuration of a plurality of electric wires connecting between the plurality of end parts is arranged in a direction deviated from the first axis. a placement means for
generating means for generating second drawing data representing the arrangement form of the object to be manufactured, the second drawing data including the arrangement state of the plurality of end parts and the arrangement state of each piece of connection information;
A routing state presentation device, comprising:

(6) Using a computer, from the first drawing data representing the configuration of the object to be manufactured corresponding to a wire harness including a plurality of electric wires and having at least a plurality of mutually independent end parts mounted at the end, or an intermediate part thereof , a drawing data conversion method for generating second drawing data representing an arrangement form of the object to be manufactured,
to the computer;
Based on the first drawing data, a plurality of end parts constituting the object to be manufactured are aligned along the direction of the first axis in the output coordinates, and
arranging connection information representing a wiring configuration of a plurality of electric wires connecting between the plurality of end pieces in a direction deviated from the first axis based on the positions of the arranged end pieces;
generating the second drawing data including the arrangement state of the plurality of end parts and the arrangement state of each piece of connection information ;
A drawing data conversion method characterized by:

According to the wiring state presentation method having the configuration of (1) above and the wiring state presentation device having the configuration of (5) above, a diagram showing a situation in which an object to be manufactured is arranged in a state similar to the actual manufacturing process. etc. can be expressed. For example, when the end of a sub-harness, which is an intermediate part of a wire harness, is hung on a pole arranged horizontally, it shows how each electric wire that constitutes the sub-harness and the connector at the end are connected by a wiring route. be able to. Therefore, information useful in predicting whether or not multiple electric wires will become entangled during manufacturing in one sub-harness or in a state in which a plurality of sub-harnesses are stacked and bundled is obtained. This eliminates the need for the designer to create handwritten drawings each time to examine the occurrence of entanglement, and also eliminates the need to create prototypes of each sub-harness and wire harness.

According to the wiring state presentation method having the configuration (2) above, it is possible for a designer or the like to more accurately determine whether or not electric wires are entangled. For example, when expressing the wiring route of each electric wire in a form that includes a straight line in the horizontal direction, the direction and position of multiple electric wires adjacent to each other are aligned, that is, it is more beautiful than the actual sub-harness. There is a possibility that the wiring route will be expressed together, and it will be difficult to determine the occurrence of entanglement. In the case of representation using the V-shaped connection lines, the positions of the plurality of wires adjacent to each other appear shifted, so that the possibility of occurrence of entanglement due to crossing can be easily determined.

According to the wiring state presentation method having the above configuration (3), it is possible to output information in accordance with the actual size of the product to be actually manufactured. Moreover, by maintaining a constant ratio between the output length of each connection information and the actual size for a plurality of electric wires, even if the size of the drawing to be output is small, for example, the information necessary for determining whether entanglement occurs or not is affected. Therefore, it is possible to express the routing state of all electric wires within a limited drawing area.

According to the wiring state presentation method having the configuration (4) above, information useful for grasping how the wiring route changes due to the rearrangement of the arrangement order of the plurality of end parts can be obtained. Therefore, for example, in a situation in which a plurality of electric wires are entangled, a designer or the like can easily check whether or not the occurrence of entanglement can be eliminated by changing the arrangement order of the plurality of end parts. .

According to the drawing data conversion method having the configuration of (6) above, when actually manufacturing a manufacturing target based on the specifications of the first drawing data, the first drawing data conversion method is useful for predicting the occurrence of wire entanglement in the manufacturing target. 2 drawing data can be generated. For example, in a situation where the end of a sub-harness, which is an intermediate part of a wire harness, is hung on a pole arranged horizontally, the wiring route that connects each electric wire that constitutes the sub-harness and the connector at the end of the sub-harness is first examined. It can be represented by two drawing data. Therefore, information useful in predicting whether or not multiple electric wires will become entangled during manufacturing in one sub-harness or in a state in which a plurality of sub-harnesses are stacked and bundled is obtained. This eliminates the need for the designer to create handwritten drawings each time to examine the occurrence of entanglement, and also eliminates the need to create prototypes of each sub-harness and wire harness.

According to the wiring state presentation method, the wiring state presentation device, and the drawing data conversion method of the present invention, it becomes easy to study the occurrence of entanglement between electric wires in the process of manufacturing a wire harness. For example, in a situation where the end of a sub-harness, which is an intermediate part of a wire harness, is hung on a pole arranged horizontally, the wiring route that connects each electric wire that constitutes the sub-harness and the connector at the end of the sub-harness is first examined. It can be represented by two drawing data. Therefore, information useful in predicting whether or not multiple electric wires will become entangled during manufacturing in one sub-harness or in a state in which a plurality of sub-harnesses are stacked and bundled is obtained. This eliminates the need for the designer to create handwritten drawings each time to examine the occurrence of entanglement, and also eliminates the need to create prototypes of each sub-harness and wire harness.

The present invention has been briefly described above. Furthermore, the details of the present invention will be further clarified by reading the following detailed description of the invention (hereinafter referred to as "embodiment") with reference to the accompanying drawings. .

FIG. 1 is a front view showing an example of an application display screen displaying the configuration of one subharness in a standard state. FIG. 2 is a front view showing a screen display example when displaying the configuration of one sub-harness in a state of being hung on a pole. FIGS. 3(a) and 3(b) are front views showing screen display examples of the sub-harness before and after the arrangement of the connectors is changed, respectively. FIG. 4 is a front view showing a display example-1 of the configuration of the sub-harness in the case where the wiring state of the electric wires connecting the connectors is represented by V-shaped connection information. FIG. 5 is a front view showing a display example-2 of the configuration of the sub-harness in the case where the wiring state of the electric wires connecting the connectors is represented by V-shaped connection information. FIG. 6 is a flow chart showing an example of a processing procedure for displaying the configuration of one subharness in a state of being hung on a rod.

Specific embodiments relating to the present invention will be described below with reference to each drawing.

<Standard display example>
FIG. 1 is a front view showing an example of an application display screen 10 displaying the configuration of one sub-harness SH1 in a standard state.

For example, when a wire harness mounted on a vehicle manufactured by a vehicle manufacturer (Company A) is manufactured by a parts manufacturer (Company B), the design drawing data (first (design drawing data) is provided from Company A to Company B. This design drawing data is data that can be used on a specific CAD (Computer Aided Design) system introduced by Company A, and is created as data in a format that is easy for Company A to use.

Company B manufactures wire harness products based on the design drawing data received from Company A. In addition, after confirming that the manufactured wire harness product satisfies the specifications required by Company A through an inspection including actual measurement of dimensions, Company B delivers the wire harness product that has passed the inspection to Company A. Company A mounts the wire harness delivered by Company B on a specific vehicle body and manufactures the vehicle.

The application display screen 10 shown in FIG. 1 reads and displays data using a general-purpose computer incorporating dedicated application software for handling the first design drawing data that defines the specifications of the target wire harness. can be done.

In the example shown in FIG. 1, the drawing display area 11 shows the contents of the drawing showing the configuration of the sub-harness SH1. That is, the constituent elements such as a large number of connectors C11 to C19, a large number of electric wires L10 to L17, terminals 15, etc. included in the sub-harness SH1 and their connection relationships are shown.

For example, the electric wire L10 has one end connected via the terminal 15 to the connector C11 and the other end connected via the terminal 15 to the connector C12. Similarly, the electric wire L11 has one end connected to the connector C11 via the terminal 15 and the other end connected via the terminal 15 to the connector C13.

The connectors C11 and C14 are connected by a plurality of wires L12, the connectors C11 and C15 are connected by a wire L13, the connectors C11 and C16 are connected by a plurality of wires L14, and the connectors C14 and C19 are connected. A wire L15 connects between them, a plurality of wires L16 connect between the connectors C16 and C17, and a wire L17 connects between the connectors C16 and C18.

The application display screen 10 shown in FIG. 1 includes a plurality of operation units 12a, 12b, 12c, 12d, and 12e. This application software executes a predetermined function when the user operates the operation units 12a, 12b, 12c, 12d, and 12e using an input device such as a mouse.
In this embodiment, a function for displaying drawings in a special form is assigned to the operation unit 12a. Specifically, it is a function to display multiple connectors side by side.

Manufacturers of wire harness products manufacture a large number of sub-harnesses, which are intermediate parts, respectively, and then stack the large number of sub-harnesses in order and assemble them together to produce an assembly. do. Also, when stacking a large number of sub-harnesses, each connector at the end of each sub-harness is hung on a horizontally arranged rod, and the assembling work is carried out in a situation where each electric wire connecting between the connectors is hung downward. . At this time, depending on the wiring conditions of many electric wires and their mutual positional relationship, electric wires may cross each other, and if the number of crossings is large, entanglement is likely to occur.

However, in the case of the display form shown in FIG. 1, it is difficult for a designer or the like to grasp the occurrence of entanglement between wires because the wiring status of each wire cannot be confirmed during the work as described above. Therefore, by displaying the status of multiple connectors arranged side by side, it is possible to display the wiring status of the wires in the same way as when working with the sub-harness on a pole. etc. will be easier to understand.

<Display example of the sub-harness hanging on the pole>
FIG. 2 is a front view showing a screen display example when displaying the configuration of one sub-harness in a state of being hung on a pole. By operating the operation unit 12a shown in FIG. 1, the display contents of the drawing display area 11 in FIG. 1 can be changed to a special form as shown in FIG.

In the example shown in FIG. 2, the axial direction X represents the horizontal or horizontal direction, and the axial direction Y represents the vertical or vertical direction. As shown in FIG. 2, in this example, a large number of connectors C21 to C26 forming the sub-harness SH2 are aligned in a line along the axial direction X and arranged on the output coordinates.

Further, the connectors C21 and C22 are connected by a plurality of electric wires L21, the connectors C21 and C23 are connected by a plurality of electric wires L22, and the connectors C23 and C24 are connected by a plurality of electric wires L23, respectively. C25 are connected by a plurality of electric wires L24. In addition, other electric wires that do not yet have a connector at one end (to be connected in a later process) are represented as straight lines hanging downward.

In the example shown in FIG. 2, each of the electric wires L21 to L24 connecting between a plurality of connectors is routed in a U-shaped manner in which a straight portion extending downward from the connector to which it is connected and a straight portion extending in the horizontal direction are combined. expressed as a pattern.

<Replacement of connector arrangement>
3(a) and 3(b) respectively show screen display examples of the sub-harness before and after the arrangement of the connectors is changed.

Tangles between electric wires that occur when each sub-harness or a plurality of sub-harnesses are assembled can be eliminated by changing the arrangement order of the plurality of connectors. Therefore, if it is possible to confirm a change in the wiring state of each electric wire before and after the arrangement order of the plurality of connectors is changed, it becomes easy to eliminate electric wire entanglement.

In the example of FIG. 3A, regarding the positional relationship between the two connectors C31 and C32 included in the sub-harness SH3, the connector C31 is arranged on the left side and the connector C32 is arranged on the right side. Moreover, in the example of FIG.3(b), the connector C32 is arrange|positioned at the left side, and the connector C31 is arrange|positioned at the right side. 3A and 3B show the situation in which the positional relationship between the two connectors C31 and C32 is switched. Also, regarding the wiring status of the plurality of electric wires L31 and L32, a status is shown that has changed with the change in the arrangement of the connectors C31 and C32.

For example, in a situation where electric wires are entangled, if a user such as a designer gives an instruction to change the arrangement of connectors to change the display form, the electric wires as shown in FIGS. Since the change in the routing situation can be confirmed on the screen, tangling can be easily resolved.

<When the wiring status of electric wires is represented by V-shaped connection information>
FIGS. 4 and 5 show display examples of the configuration of sub-harnesses in the case of expressing the wiring status of electric wires connecting a plurality of connectors with V-shaped connection information.

For example, as shown in FIG. 2, in a form using a U-shaped line segment pattern, if the wiring status of each electric wire L21 to L24 connecting a plurality of connectors is expressed, adjacent electric wires or intersecting electric wires However, it looks neatly gathered in the same place. Therefore, even if the electric wires are entangled with each other in the actual sub-harness SH2, it may be difficult for the designer or the like to grasp the occurrence of the entanglement with the display contents as shown in FIG. Therefore, in the present embodiment, as shown in FIGS. 4 and 5, V-shaped connection information is used to express the wiring state of electric wires connecting a plurality of connectors.

In the example shown in FIG. 4, the axial direction X represents the horizontal or horizontal direction, and the axial direction Y represents the vertical or vertical direction. As shown in FIG. 4, in this example, a large number of connectors C41 to C47 forming the sub-harness SH4 are aligned in a line along the axial direction X and arranged on the output coordinates.

Further, the connectors C42 and C46 are connected by a plurality of electric wires L41, the connectors C42 and C47 are connected by a plurality of electric wires L42, the connectors C43 and C46 are connected by a plurality of electric wires L43, and the connectors C44, A wire L44 connects between C45, and a wire L45 connects between connectors C44 and C46. The other electric wire L49, which does not yet have a connector at one end, is represented as a straight line hanging downward.

In the example shown in FIG. 4, for example, the electric wire L45 is a line segment connecting a point at which the connector C44 is located to a diagonally lower right corner point Po, and a line segment connecting this segmentation point Po to a diagonally upper right corner point at which the connector C46 is located. It is expressed as a V-shaped connection information pattern combining minutes and minutes. Similarly, for each of the electric wires L41 to L44 connecting a plurality of connectors, the routing situation is expressed as a V-shaped connection information pattern passing through the bending points Po at different positions.

As for the sub-harness SH5 shown in FIG. 5, similarly to FIG. 4, the wiring status is expressed as a V-shaped connection information pattern for each of the electric wires L51 to L55 connecting between a plurality of connectors.

The length of the V-shaped connection information pattern as shown in FIGS. 4 and 5 is determined based on the actual size of each electric wire and a fixed ratio, as will be described later. Therefore, the coordinates of each folding point Po in the axial direction Y and the angle of the V shape are individually determined for each connection information pattern. Therefore, as shown in FIGS. 4 and 5, the wiring states of the electric wires L41 to L44 are expressed in a state in which they are unlikely to interfere with each other. In other words, each connection information pattern is displayed in such a manner that a designer or the like can easily visually grasp the presence or absence of locations where a plurality of electric wires are likely to intersect and become entangled.

<Processing Procedure for Realizing Characteristic Operations>
FIG. 6 is a flow chart showing an example of a processing procedure for displaying the configuration of one subharness in a state of being hung on a rod. By executing dedicated application software including functions corresponding to the processing procedure shown in FIG. It is possible to display on the display screen 10 and save the created drawing data.

A case where the processing procedure shown in FIG. 6 is executed by a predetermined computer system (hereinafter referred to as CPU) will be described below. For example, when the user operates the operation unit 12a shown in FIG. 1, the processing procedure shown in FIG. 6 can be activated.

The CPU selects one or more sub-harnesses to be processed according to the user's input operation (S11).
The CPU reads the design drawing data of the sub-harness selected in S11 from the input drawing file F1 (S12). The design drawing data held by the input drawing file F1 is, for example, design drawing data provided by a vehicle manufacturer to a parts manufacturer that manufactures wire harnesses. It contains data such as the distance (actual size) between measuring points on each wire.

The CPU extracts data of all connectors from the data read in S12 (S13). The CPU creates output data representing a drawing in which all the connectors extracted in S13 are arranged side by side in order on the two-dimensional coordinates of the output drawing (S14). For example, as shown in FIG. 4, the connectors C41 to C47 of the sub-harness SH4 are arranged in a line in the axial direction X at regular intervals. The order in which the connectors are arranged in the initial state is automatically determined based on the size relationship of the coordinates of the connectors in the input drawing file F1.

The CPU extracts data for each wire from the data read in S12 (S15), and acquires the position of the connector to which each wire is connected (S16). That is, since the coordinates of each connector on the two-dimensional coordinates of the output drawing have already been determined in S14, etc., by specifying the connector to be connected and the cavity position on the connector for each terminal of the electric wire, The position can be grasped at S16.

The CPU generates V-shaped connection form information output data based on the actual size of each wire and the positions of both ends of each wire acquired in S16 for each of all the wires extracted in S15 (S17). . As a result, a V-shaped pattern such as the electric wires L41 to L45 shown in FIG. 4, for example, is generated as the connection form information. Here, since the length of each piece of connection form information is determined based on the actual size of each electric wire, the coordinate of each bending point Po in the axial direction Y and the angle of the V shape are different for each electric wire.

However, if the sub-harness contains a very long electric wire, the size of the V-shaped pattern will be large, so part of the pattern will protrude from the area of the output drawing and only part of it will be visible. there is a possibility. Therefore, the CPU compares the dimension of the wire with the largest output size (actual size, etc.) generated in S17 with a specified value in S18 to identify the presence or absence of protrusion, and if it protrudes, executes the processing of S19.

In S19, the CPU automatically adjusts the length of each piece of connection form information so that the pattern of connection form information that is too large in size fits within the area of the output drawing. Here, the same ratio Ks is applied to all the connection topology information so that the relative difference in the pattern shapes of the plurality of topology information is maintained even after correction.
Lo = Li x Ks
Lo: Total length of V-shaped pattern to be output Li: Actual size of corresponding electric wire

For example, if the ratio of the actual wire lengths Li of the first electric wire and the second electric wire is "1 to 2", the ratio of the total lengths of the patterns Lo corresponding to the first electric wire and the second electric wire respectively will also be "1 vs. 2". Note that the ratio Ks may be a predetermined appropriate constant, or may be a variable that changes according to user input.

The CPU outputs the drawing including the output data created by the processing of S11 to S19, for example, in the form shown in FIGS. 4 and 5 to the application display screen 10 shown in FIG. 1 (S21).

Therefore, a user such as a designer can visually recognize the wiring status of each electric wire displayed on the screen in the form as shown in FIGS. As one of the countermeasures for eliminating entanglement between electric wires, it is conceivable to change the arrangement order of a plurality of connectors.

Therefore, the CPU has a function of accepting a user's input operation for changing the arrangement order of a plurality of connectors. That is, when the CPU detects a user instruction for connector replacement in S22, the CPU advances to S23 and replaces the arrangement order of the plurality of connectors.

In practice, for example, in the situations shown in FIGS. 3A and 3B, when the two connectors C31 and C32 are exchanged, the user selects the two connectors C31 and C32 by an input operation. to As a result, the operation section 12f shown in FIG. 3A is displayed. Here, when the user operates the operation unit 12f, S23 of FIG. 6 is executed.

After executing S23 of FIG. 6, the CPU executes the processes of S15 to S21 again, so the drawing after the connector replacement is displayed on the screen in S21. As a result, for example, the state shown in FIG. 3(a) changes to the state shown in FIG. 3(b). Therefore, the user can easily confirm from the contents of the screen display whether or not the entanglement of the electric wire has been eliminated. In practice, it has been found that the greater the number of crossed wires, the more likely entanglement will occur.

When the user performs an input operation for saving data using the operation units 12c, 12d, etc., the CPU proceeds from S24 to S25 to save the output data in the output drawing file F2. That is, output drawing data including the positional coordinates of each connector determined in S14 or S23 and the V-shaped connection configuration information of each wire determined in S17 is registered in the output drawing file F2.

Therefore, by executing the processing procedure shown in FIG. 6, the CPU converts the input drawing data as shown in the drawing display area 11 of FIG. It is possible to generate output drawing data in various forms. In addition, since the output drawing data in a special form as shown in FIGS. 4 and 5 are displayed on the screen, the designer can easily grasp whether or not the wires are entangled. Furthermore, in order to eliminate the entanglement of electric wires, it is also possible to change the arrangement order of the connectors and confirm the result.

In other words, there is no need to individually create handwritten drawings for each sub-harness in order to avoid the occurrence of tangling of electric wires, and it is no longer necessary to create a prototype of the sub-harness. In addition, it becomes easier for the designer to consider a more preferable wire routing condition for eliminating entanglement.

In the processing procedure shown in FIG. 6, it is assumed only that the arrangement order of a plurality of connectors is changed in order to eliminate the entanglement of electric wires. Alternatively, a user's input operation for changing the cavity position of each terminal 15 to be inserted into the connector may be received. Even in this case, the user can easily confirm whether or not the entanglement has been resolved by reflecting the V-shaped connection configuration information on the output drawing to show how the wiring state of the electric wire has changed before and after the change.

Here, the features of the arrangement state presentation method, the drawing data conversion device, and the drawing data conversion method according to the embodiments of the present invention described above will be briefly summarized in [1] to [6] below.
[1] Information representing the wiring configuration of a wire harness that includes a plurality of electric wires and has at least a plurality of mutually independent end parts mounted at the end, or a manufacturing object (sub-harnesses SH1 to SH5) corresponding to intermediate parts thereof A routing state presentation method for outputting
Input first drawing data (contents of the input drawing file F1) representing the configuration of the object to be manufactured (S12),
Based on the first drawing data, a plurality of end parts (connectors C11 to C19, etc.) constituting the object to be manufactured are aligned along the direction of the first axis (X) in the output coordinates ( S14),
Based on the positions of the aligned end parts, connection information representing a wiring configuration of a plurality of electric wires connecting between the end parts is arranged in a direction deviated from the first axis (S17). ),
A routing state presentation method characterized by:

[2] The connection information is composed of a V-shaped connection line (a pattern of electric wires L41 to L46, etc.) including a first straight line and a second straight line extending in a direction oblique to the first axis.
The routing state presentation method according to the above [1], characterized by:

[3] Determine the output length of the connection information in the output coordinates based on the actual size of the corresponding part in the first drawing data, and maintain a constant ratio between the output length of each connection information and the actual size. (S19),
The routing state presentation method according to the above [1], characterized by:

[4] When a predetermined input instruction is received (S22),
By changing the order of arrangement of the plurality of end parts (S23),
rearranging each of the connection information according to the position of each of the end parts after replacement (S17);
The routing state presentation method according to any one of the above [1] to [3], characterized by:

[5] Information representing the wiring configuration of a wire harness that includes a plurality of electric wires and has at least a plurality of mutually independent end parts mounted at the end, or a manufacturing object (sub-harnesses SH1 to SH5) corresponding to intermediate parts thereof A routing state presentation device that outputs
input means (CPU, S12) for inputting first drawing data (contents of input drawing file F1) representing the configuration of the object to be manufactured;
Based on the first drawing data input to the input means, a plurality of end parts (connectors C11 to C19, etc.) constituting the manufacturing object are moved along the direction of the first axis (X) in the output coordinates. aligning means (CPU, S14) for aligning in an aligned state;
Based on the positions of the plurality of end parts aligned by the aligning means, connection information representing a wiring configuration of a plurality of electric wires connecting between the plurality of end parts is arranged in a direction deviated from the first axis. arranging means (CPU, S17) to
A routing state presentation device, comprising:

[6] From the first drawing data representing the configuration of the object to be manufactured corresponding to a wire harness including a plurality of electric wires and having at least a plurality of mutually independent end parts attached to at least the end thereof, or an intermediate part thereof, the object to be manufactured A drawing data conversion method for generating second drawing data representing an arrangement form of
Based on the first drawing data, a plurality of end parts constituting the object to be manufactured are aligned along the direction of the first axis in the output coordinates (S14),
Based on the positions of the aligned end parts, connection information representing a wiring configuration of a plurality of electric wires connecting between the end parts is arranged in a direction deviated from the first axis (S17 ),
generating the second drawing data including the arrangement state of the plurality of end parts and the arrangement state of each of the connection information (S21);
A drawing data conversion method characterized by:

10 Application display screen 11 Drawing display area 12a, 12b, 12c, 12d, 12e, 12f Operation unit 15 Terminals SH1, SH2, SH3, SH4, SH5 Sub-harnesses C11-C19, C21-C26, C31, C32 Connectors C41-C47, C51 to C56 Connectors L11, L17, L21 to L24, L31, L32 Wires L41 to L49, L51 to L55 Wires X, Y axial direction Po Bending point F1 Input drawing file F2 Output drawing file

Claims (6)

A computer is used to output information representing the wiring form of a wire harness that includes a plurality of electric wires and at least a plurality of mutually independent end parts attached to the ends, or an object to be manufactured corresponding to intermediate parts thereof. A state presentation method comprising:
to the computer;
inputting first drawing data representing the configuration of the object to be manufactured;
Based on the first drawing data, a plurality of end parts constituting the object to be manufactured are aligned along the direction of the first axis in the output coordinates, and
arranging connection information representing a wiring configuration of a plurality of electric wires connecting between the plurality of end pieces in a direction deviated from the first axis based on the positions of the arranged end pieces;
executing a process of generating second drawing data, which is second drawing data representing the arrangement form of the object to be manufactured, and which includes the arrangement state of the plurality of end parts and the arrangement state of each piece of connection information;
A routing state presentation method characterized by: to the computer;
executing a process of configuring the connection information by a V-shaped connection line including a first straight line and a second straight line extending in an oblique direction with respect to the first axis;
2. The method for presenting a routing state according to claim 1, characterized in that: to the computer;
Determining the output length of the connection information at the output coordinates based on the actual size of the corresponding part in the first drawing data, and executing a process of maintaining a constant ratio between the output length of each connection information and the actual size. let
2. The method for presenting a routing state according to claim 1, characterized in that: to the computer;
When a predetermined input instruction is received,
changing the order of arrangement of the plurality of end parts,
Relocate each connection information according to the position of each end part after replacement, execute processing,
4. The routing state presentation method according to any one of claims 1 to 3, characterized in that: A wire harness including a plurality of electric wires and having at least a plurality of mutually independent end parts mounted at the ends thereof, or a wiring state presentation device for outputting information representing a wiring form of an object to be manufactured corresponding to intermediate parts thereof. hand,
input means for inputting first drawing data representing the configuration of the object to be manufactured;
aligning means for aligning a plurality of end parts constituting the object to be manufactured according to the first drawing data input to the input means in a state of aligning them along a direction of a first axis in output coordinates;
Based on the positions of the plurality of end parts aligned by the aligning means, connection information representing a wiring configuration of a plurality of electric wires connecting between the plurality of end parts is arranged in a direction deviated from the first axis. a placement means for
generating means for generating second drawing data representing the arrangement form of the object to be manufactured, the second drawing data including the arrangement state of the plurality of end parts and the arrangement state of each piece of connection information;
A routing state presentation device, comprising: Using a computer, from the first drawing data representing the configuration of the object to be manufactured corresponding to a wire harness including a plurality of electric wires and having at least a plurality of mutually independent end parts mounted at the end thereof, or an intermediate part thereof, the manufacturing A drawing data conversion method for generating second drawing data representing an arrangement form of an object, comprising:
to the computer;
Based on the first drawing data, a plurality of end parts constituting the object to be manufactured are aligned along the direction of the first axis in the output coordinates, and
arranging connection information representing a wiring configuration of a plurality of electric wires connecting between the plurality of end pieces in a direction deviated from the first axis based on the positions of the arranged end pieces;
generating the second drawing data including the arrangement state of the plurality of end parts and the arrangement state of each piece of connection information ;
A drawing data conversion method characterized by:

Images