JP2009205402A - Device, method and program for supporting branch angle design - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To improve the assembling property and durable quality of a wire harness. <P>SOLUTION: The branch angle design support device for supporting branch angle design of a branch point in a wire harness comprises a route information acquisition means 11a which acquires route information showing a route of the wire harness; a circuit information acquisition means 11b which acquires circuit information showing a circuit of the wire harness; a cable path calculation means 11c which associates the acquired route information and circuit information to each other based on respective terminals of a plurality of cables, and calculates respective cable paths of the plurality of cables in a planar layout based on the associated information; a branch point information formation means 11d which forms, based on a plurality of calculated cable paths, branch point information for displaying respective flows of the cables at a branch point of the wire harness; and a branch point information output means 11e which outputs the formed branch point information for supporting the branch angle design. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a branch angle design support device that supports the design of the branch angle of a branch point in the wire harness when the wire harness in which a plurality of electric wires forming a three-dimensional structure are bundled into a plane layout shape. The present invention relates to an angle design support method and a branch angle design support program.

  Various electronic devices are mounted on automobiles or the like as moving bodies. For this reason, the automobile or the like is wired with a wire harness in order to transmit electric power from a power source, a control signal from a computer, or the like to the electronic device. The wire harness includes a plurality of electric wires and connectors attached to ends of the electric wires.

  The electric wire includes a conductive core wire and a covering portion made of an insulating synthetic resin that covers the core wire. The electric wire is a so-called covered electric wire. The connector includes a conductive terminal fitting and an insulating connector housing. The terminal fitting is attached to an end portion of the electric wire and is electrically connected to the core wire of the electric wire. The connector housing is formed in a box shape and accommodates the terminal fitting.

  When assembling the wire harness, the electric wire is first cut to a predetermined length, and then a terminal fitting is attached to the end of the electric wire. Connect wires as needed. Thereafter, the terminal fitting is inserted into the connector housing. Thus, the wire harness described above is assembled.

  The design of the wire harness is prepared in parallel with the design progress of the vehicle or the like in which the wire harness is routed. Usually, a route layout of a wire harness is requested by a manufacturer such as a vehicle (simply referred to as a car manufacturer), and a component manufacturer that receives the request uses a manufacturing jig to manufacture a wire harness that satisfies the request. Patent Document 1 discloses a wire harness design support system that accurately responds to frequent design changes and improves the design efficiency of the wiring board layout and the associated route layout plan.

  FIG. 9 shows an embodiment of a conventional wire harness manufacturing jig (see Patent Document 1).

  The manufacturing jig 41 includes a rectangular wide substrate 42, a plurality of wiring jigs 43 erected on the substrate 42, a component shelf 44 disposed adjacent to the substrate 42, and a component shelf 44. The component case 45 is provided at least. A wiring board 46 is constituted by the substrate 42 and the plurality of wiring jigs 43.

  The wiring board 46 is supported by the leg 47 in an inclined manner. This is because the operator can easily and efficiently perform the wiring operation of the electric wire 48 on the wiring board 46 having a large depth. When the wiring board 46 is not inclined, the hand cannot reach the rear wiring jig 43 and the wiring workability is poor. In addition, about the wiring board with a narrow depth, it arrange | positions not horizontally but horizontally.

The wiring is to wire the electric wires 48 in a required shape along the wiring jigs 43 one by one. Parts such as a protective tube 49 and a protector are attached to the plurality of wired wires 48. Terminals (not shown) are crimped to the ends of the electric wires 48, the terminals are inserted into the connector housing, and the connector housing and the terminals constitute the connector 50. Further, the plurality of electric wires 48 are converged by the vinyl tape 51 to complete the wire harness 52.
JP 2004-46815 A

  When designing the above-described wire harness, if application software such as CAD (computer aided design) is used, the wire harness W is expressed in a bundle as shown in FIG. Therefore, it is difficult for inexperienced designers to design the branch angle θ of the branch line Wb branched from the trunk line Wm to an appropriate angle.

  For this reason, when the branching angle θ is designed to be a stressful angle, the portion becomes difficult to bend, resulting in a problem that the assembling property is lowered. In addition, when the wire harness W is designed at an angle where there is a lot of stress, there is a problem that the branched portion becomes stressed and the durability quality of the wire harness W is deteriorated. Furthermore, since it is difficult to determine whether the branch angle θ in the wire harness W is a stressful angle or not until it is actually manufactured, design changes often occur at the manufacturing stage, and manufacturing starts. There was a problem of being behind schedule.

  Therefore, in view of the above-described problems, the present invention provides a branching angle design support device, a branching angle design support method, and a branching angle design support program that can improve the assembly and durability of the wire harness. It is an issue.

In order to solve the above-mentioned problems, the branching angle design support device according to claim 1, which is made according to the present invention, has a flat wire harness in which a plurality of electric wires forming a three-dimensional structure are bundled as shown in the basic configuration diagram of FIG. A branch angle design support device for supporting the design of a branch angle of a branch point in the wire harness when the plane shape is developed into a layout shape, and a route information acquisition unit 11a for acquiring route information indicating a route of the wire harness; The circuit information acquisition means 11b for acquiring circuit information indicating the circuit of the wire harness, and the path information acquired by the path information acquisition means 11a and the circuit information acquisition means 11b based on each terminal of the plurality of electric wires. Is associated with the acquired circuit information, and the wire paths of each of the plurality of wires in the planar layout are calculated from the associated information. Branch point for creating branch point information for displaying each flow of the wire at the branch point of the wire harness based on the wire route calculation unit 11c and the plurality of wire routes calculated by the wire route calculation unit 11c Information creation means 11d;
It has branch point information output means 11e for outputting the branch point information created by the branch point information creation means 11d to support the design of the branch angle.

  According to the plan production drawing creation support apparatus of the present invention described in claim 1, when the route information and circuit information corresponding to the wire harness are acquired by the route information acquisition unit 11a and the circuit information acquisition unit 11b, the wire route The calculation means 11c associates the route information and the circuit information based on the terminals of the plurality of wires, and calculates the wire routes of the plurality of wires in the planar layout from the associated information. Then, when the branch point information for displaying the flow of each wire at the branch point of the wire harness is created based on the plurality of pieces of wire information by the branch point information creating unit 11d, the branch point information output unit 11e branches the branch point information. In order to support the angle design, for example, it is output to a display device, a printer or the like.

  According to the second aspect of the present invention, as shown in the basic configuration diagram of FIG. 1, in the branching angle design support device according to the first aspect, the electric wire information collecting means for collecting electric wire information corresponding to each of the plurality of electric wires. 11d, and the branch point information creation unit 11d creates the branch point information for displaying the flow and thickness of each of the wires so as to be visible based on the wire information and the wire route. It is a means.

  According to the branching angle design support device of the present invention described in claim 2, when the wire information collecting means 11f collects the wire information indicating, for example, thickness, rigidity, etc. corresponding to each of the plurality of wires, the branching is performed. The point information creation means 11d creates branch point information for displaying the flow and thickness of each wire so as to be visible based on the wire information and the wire route.

  As shown in the basic configuration diagram of FIG. 1, the invention according to claim 3 is the branch angle design support device according to claim 2, wherein the wire information collected by the wire information collection unit 11 f, the wire route information, and the Cross-sectional shape information creating means 11g for creating cross-sectional shape information indicating a cross-sectional shape of at least one of a trunk line corresponding to the branch point or a branch line branched from the trunk line based on the branch point information, and the cross-sectional shape information creation Cross-sectional shape information output means 11h for outputting the cross-sectional shape information created by the means 11g to support the design of the branching angle.

  According to the branch angle design support device of the present invention described in claim 3, the cross-sectional shape showing the cross-sectional shape of at least one of the trunk line corresponding to the branch point or the branch line branched from the trunk line by the cross-sectional shape information creating means 11g. When the information is created based on the electric wire information, the electric wire route information, and the branch point information, the cross-sectional shape information is output by the cross-sectional shape information output unit 11h to support the design of the branch angle.

  The invention according to claim 4 is the branch angle for obtaining the branch angle at the branch point in the branch angle design support device according to any one of claims 1 to 3, as shown in the basic configuration diagram of FIG. An electric wire that has an acquisition unit 11i and that the branch point information creation unit 11d branches in accordance with the branch angle based on the branch angle acquired by the branch angle acquisition unit 11i, the electric wire information, and the electric wire route. It is means for calculating at least one of a group in-course or out-course and creating the branch point information having course data indicating the course.

  According to the branch angle design support device of the present invention described in claim 4, when the branch angle is acquired by the branch angle acquisition unit 11i, the branch point information generation unit 11d converts the branch angle, the wire information, and the wire path. Based on this, at least one of the in-course or the out-course of the electric wire group branching corresponding to the branch angle is calculated, and branch point information having course data indicating the course is created.

  The branch angle design support method according to claim 5, which is made according to the present invention in order to solve the above-described problem, is a method in which when a wire harness in which a plurality of electric wires forming a three-dimensional structure are bundled is planarly developed into a planar layout shape, the wire A branch angle design support method for supporting the design of a branch angle of a branch point in a harness, a route information acquisition step for acquiring route information indicating a route of the wire harness, and acquiring circuit information indicating a circuit of the wire harness The circuit information acquisition step to be performed, and the acquired path information and the acquired circuit information are associated with each other based on each terminal of the plurality of electric wires, and each of the plurality of electric wires in the planar layout is obtained from the associated information. Based on the wire route calculation process for calculating the wire route and the calculated plurality of wire routes, the wire harness branch point is calculated. A branch point information creating step for creating branch point information for displaying each flow of the electric wire, and a branch point information outputting step for outputting the created branch point information to support the design of the branch angle. It is characterized by having.

  According to the branch angle design support method of the present invention described in claim 5, when the route information and the circuit information corresponding to the wire harness are acquired, the route information and the circuit information based on each terminal of the plurality of electric wires. And the wire paths of each of the plurality of wires in the planar layout are calculated from the associated information. And when the branch point information for displaying each flow of the electric wire at the branch point of the wire harness is created based on the plurality of pieces of electric wire information, for example, a display device, a printer, etc. to support the design of the branch angle Is output.

  The branch angle design support program according to claim 6, which is made according to the present invention to solve the above-described problem, is a flat surface of a wire harness in which a plurality of electric wires forming a three-dimensional structure are bundled as shown in the basic configuration diagram of FIG. 1. A path information acquisition unit 11a for acquiring a path information indicating a path of the wire harness by using a computer of a branch angle design support apparatus that supports a design of a branch angle of a branch point in the wire harness when the plane shape is developed into a layout shape; The circuit information acquisition means 11b for acquiring circuit information indicating the circuit of the wire harness, the path information acquired by the path information acquisition means 11a and the circuit information acquisition means 11b based on the terminals of the plurality of electric wires. The circuit information and the wire information of each of the plurality of wires in the planar layout from the associated information. The wire route calculation means 11c for calculating the branching point information for displaying the flow of each of the wires at the branch point of the wire harness based on the plurality of wire routes calculated by the wire route calculation means 11c. Branch point information creation means 11d, and branch angle design support for causing the branch point information created by the branch point information creation means 11d to function as the branch point information output means 11e for outputting the branch angle design. It is a program.

  According to the branch angle design support program of the present invention described in claim 6, when the computer obtains the route information and the circuit information corresponding to the wire harness, the route information and the circuit are based on each terminal of the plurality of electric wires. Information is associated with each other, and the wire paths of each of the plurality of wires in the planar layout are calculated from the associated information. When branch point information for displaying the flow of each wire at the branch point of the wire harness is created based on a plurality of pieces of wire information, it is output to, for example, a display device or a printer to support the design of the branch angle. To do.

  As described above, according to the first, fifth, and sixth aspects of the present invention, the acquired route information and circuit information are associated with each other, the wire route in each planar layout of the plurality of wires is calculated, and the wire harness is obtained. Since the branch point information for displaying the flow of each electric wire at the branch point is created and output, the designers can determine the flow of each wire at the branch point of the wire harness and the number of wires to be branched. Since it can be confirmed, it is possible to support the design of the branch angle with less stress of the bundle of electric wires to be branched. Therefore, it is possible to reduce the design change that occurs at the time of manufacturing the wire harness, to easily assemble the wire harness, and to improve the durability quality.

  According to the invention described in claim 2, in addition to the effect of the invention described in claim 1, wire information corresponding to each of the plurality of wires is collected, and the wire information is based on the wire information and the wire route. Since the branching point information for displaying each flow and thickness so as to be visible can be created, the designers, in addition to the flow of each wire at the branching point of the wire harness, the number of wire bundles to be branched, Since the thickness of the electric wire can be confirmed, the branching angle can be set to a more realistic angle. Therefore, the design change that occurs when the wire harness is manufactured can be further reduced.

  According to the invention described in claim 3, in addition to the effect of the invention described in claim 2, the cross-sectional shape information indicating the cross-sectional shape of at least one of the trunk line corresponding to the branch point or the branch line branched from the trunk line, Since it was created based on the wire information, wire route, and branch point information and output to support the design of the branch angle, the designers can check the cross-sectional shape of the bundle of wires to be branched Therefore, the branching angle can be set to a more realistic angle in consideration of the cross-sectional shape.

  According to the invention described in claim 4, in addition to the effect of the invention described in any one of claims 1 to 3, the group of electric wires that acquire the branch angle of the branch point and branch according to the branch angle. Since at least one of the in-course or the out-course is calculated and the branch point information having the course data indicating the course is created, the designers confirm the in-course or the out-course of the branching electric wire group. Therefore, the branch angle can be set to a more realistic angle. In addition, since it is possible to consider the course at the branch point for the wires passing through the same route, it is possible to calculate the length of each wire more accurately, contributing to the reduction of the amount of wire used. it can.

  Hereinafter, when a wire harness (W / H) in which a plurality of electric wires forming a three-dimensional structure are bundled is flattened into a planar layout shape using the branch angle design support device according to the present invention, the branch in the wire harness An embodiment for supporting the design of the branch angle of a point will be described below with reference to the drawings of FIGS.

  In FIG. 2, the three-dimensional structure 2 has a wire harness W1 composed of a plurality of electric wires (wire bundles) 3 shown in FIG. 5, and a connector W2 provided at an end of the wire harness W1 and the like. . As is well known, the electric wire 3 includes a conductive core wire and a covering portion made of an insulating synthetic resin that covers the core wire. The connector W2 has a conductive terminal fitting and an insulating connector housing. In FIG. 2, the wavy line indicates the electric wire path R of one electric wire (for example, a trunk line), and the electric wire route R is set by paying attention to one or a plurality of electric wires 3.

  In FIG. 3, the branch angle design support apparatus 10 uses a known computer, and has a central processing unit (CPU) 11 that controls the operation of the entire apparatus according to a predetermined program. The CPU 11 is a readable / writable memory having a ROM 12 which is a read-only memory storing a program for the CPU 11 via the bus B, and a work area for storing various data necessary for the processing work of the CPU 11. A certain RAM 13 is connected.

  A storage device 14 is connected to the CPU 11 via a bus B, and a hard disk device, a large-capacity memory, or the like is used as the storage device 14. As shown in FIG. 4, the storage device 14 includes various programs such as a branch angle design support program P, circuit information D1, route information D2, wire information D3, manufacturing requirement information D4, wire route information D5, branch point information D6, It has a storage area for storing various information. These are installed from a CD-ROM or the like, or downloaded via a network and stored in the storage device 14 in a timely manner.

  The branch angle design support program P supports the design of the branch angle of the branch point in the wire harness W1 when the wire harness W1 in which a plurality of electric wires 3 forming the three-dimensional structure 2 are bundled into a plane layout shape. The CPU (computer) 11 of the branching angle design support apparatus 10 that performs the above-described operation is a path information acquisition unit 11a that acquires path information D2 that indicates the path of the wire harness W1, and a circuit that acquires circuit information W2 that indicates the circuit of the wire harness W1. Based on the information acquisition unit 11b and the terminals of the plurality of electric wires 3, the route information D2 acquired by the route information acquisition unit 11a and the circuit information D1 acquired by the circuit information acquisition unit 11b are associated with each other. An electric wire route calculator for calculating the wire route of each of the plurality of electric wires 3 in the planar layout from information 11c, branch point information creation means for creating branch point information for displaying the flow of each of the electric wires 3 at the branch point of the wire harness W1, based on the plurality of wire paths calculated by the wire path calculation means 11c. 11d, a branch angle design support program for causing the branch point information created by the branch point information creation unit 11d to function as a branch point information output unit 11e that outputs the branch angle information to support the design of the branch angle. . That is, the CPU 11 functions as the various means described above by executing the branch angle design support program P.

  As an example of the circuit information D1, the type of the wire harness W1, the configuration and size of the electric wire 3, the connection destination (From-To) of the wire harness W1, the name of the connector W2 attached to the end (for example, cooler, door window, etc.) ) And the like, and is stored as a circuit information database (DB) in the storage device 14 or the like.

  As an example of the route information D2, the route information D2 includes various data for indicating the three-dimensional or two-dimensional shape, route, and the like of the wire harness W1 forming the three-dimensional structure 2. The route information D2 includes name data of the electric wire 3 connected to the circuit information D1, and the circuit information D1 and the route information D2 are linked using the name of the terminal portion as a key. Such route information D2 is stored as a route information database (DB) in the storage device 14 or the like in association with the circuit information D1 by the product number of the three-dimensional structure 2 or the like.

  The electric wire information D3 is provided corresponding to the type, product number, etc. of the electric wire 3, and has various data such as the thickness, material, rigidity, surface (covering portion) color, etc. of the electric wire 3, for example. Yes. The electric wire information D3 is associated with the configuration of the electric wire 3 indicated by the circuit information D1 and stored in the storage device 14 or the like as an electric wire information database (DB).

  In the present embodiment, in order to simplify the description, a case will be described in which the above-described circuit information D1, route information D2, and wire information D3 are stored in the storage device 14 in advance, but the present invention is not limited thereto. However, various embodiments may be adopted such as, for example, constructing as a database in an external hard disk device accessible via the Internet, a LAN, or the like.

  The manufacturing requirement information D4 includes the above-described wiring board 46 (see FIG. 9) used for manufacturing the wire harness W1, manufacturing jig data indicating a jig, and the wiring harness W1 when manufactured on the wiring board 46. In addition, it has manufacturing requirement data for considering the rigidity, manufacturing requirements, etc. of the three-dimensional structure 2. As described above, the manufacturing requirement information D4 is configured to have various data for considering the manufacturing requirements of the three-dimensional structure 2 instructing the manufacturing and the rigidity of the wire harness W1 before the drawing by the car manufacturer.

  The wire route information D5 is information indicating the result of calculating the wire routes of the plurality of wires 3 in the planar layout by associating the circuit information D1 and the route information D2 described above based on the terminals of the plurality of wires 3. It has become. The planar layout means a layout when the three-dimensional structure 2 is planarly developed on the wiring board 46.

  The branch point information D6 is information for displaying the flow of each of the electric wires 3 at the branch point P of the wire harness W1. For example, as illustrated in FIG. The configuration such as partial information and information indicating the entire planar layout can be arbitrarily determined.

  FIG. 5 is a partially enlarged view of the wiring board 46, and a plurality of wiring jigs 43 arranged with respect to the planar layout shape of the three-dimensional structure 2 are provided on the wiring board 46. The wire harness W1 is manufactured in a state of being held by the wiring jig 43. That is, the planar layout shape is a layout shape when the three-dimensional structure 2 is wired on the wiring board 46 and planarly developed. In addition, about the display form of the wire harness W1 shown in FIG. 5, by displaying also the color of each coating | covering material of the electric wire 3 which comprises the wire harness W1, realistically displays the flow of the electric wire 3 to a user. Can be recognized.

  Moreover, the wire harness W1 has the trunk line Wm and the branch line Wb branched from the trunk line Wm. The branch line Wb is bent at a branch point P on the trunk line Wm at a branch angle θ. That is, the branch angle design support device 10 is a device for supporting the design of the branch angle θ.

  An input device 15, a communication device 16, a display device 17, and the like are connected to the CPU 11 described above via a bus B. The input device 15 includes a keyboard, a mouse, and the like, and outputs input data corresponding to a user operation to the CPU 11. The communication device 16 uses a communication device such as a LAN card or a cellular phone modem. Then, the communication device 16 outputs the received information to the CPU 11 and transmits the information input from the CPU 11 to the designated transmission destination.

  As the display device 17, various display devices such as a known liquid crystal display and CRT are used. The display device 17 displays various information under the control of the CPU 11. That is, the display device 17 displays various screens indicating the branch point information 16 and the like based on the various pieces of information, thereby assisting the designer and the like in designing the branch angle θ. In addition, about the output method of the branching point information 16, it can be set as various different embodiments, such as printing the branching point information 16 on a paper, for example by outputting to the printer from CPU11.

  Next, an example of the branch angle design support process when the CPU 11 described above executes the branch angle design support program P described above will be described below with reference to the flowchart of FIG.

  When the branch angle design support program P is executed by the CPU 11, the route information D2 corresponding to the three-dimensional structure 2 designated by the designer or the like is acquired from the storage device 14 in step S11 (corresponding to the route information acquisition means). In step S12 (corresponding to circuit information acquisition means), circuit information corresponding to the three-dimensional structure 2 is acquired from the storage device 14 and stored in the RAM 13, and then the process proceeds to step S13.

  In step S13 (corresponding to electric wire information collecting means), electric wire information D3 corresponding to each of the plurality of electric wires 3 is collected from the storage device 14 and stored in the RAM 13 based on the acquired route information D2 and circuit information D1. In step S14 (corresponding to the electric wire route calculating means), the route information D2, the circuit information, and D1 stored in the RAM 13 are associated with each other based on the terminals of the plurality of electric wires 3, and the planar layout is determined from the associated information. The wire paths of each of the plurality of wires 3 are calculated, and the calculation result is stored in the storage device 14 as the wire path information D5, and then the process proceeds to step S15.

  In step S15 (corresponding to the branch angle acquisition means), each branch angle θ of the branch point P in the predetermined route is acquired based on the route information D2 and the circuit information D1, and the RAM 13 is associated with the branch point P and stored in the RAM 13. In step S16, each flow of the electric wire 3 passing through the branch point P is identified based on the circuit information D1 in correspondence with each of the branch points P, and each of the electric wires 3 is determined based on the electric wire information D3. Are specified, the course through which each of the electric wires 3 branched corresponding to the branch angle θ of the branch point P is specified, and course data is created, and then the process proceeds to step S17.

  In addition, as a method of specifying the course of the electric wire 3 to be branched, each course of the electric wire 3 is determined based on the diameter (thickness), rigidity, and the like of the electric wire 3 and a conversion table predetermined corresponding to the branch angle θ. Has been identified. More specifically, the relative distance from the branch point corresponding to the thickness of the electric wire 3 is set in the conversion table, and the thick electric wire 3 passes through the out course, and the thinner electric wire 3 passes through the in course. I have identified.

  In step S17 (corresponding to the branching point information creating means), the plurality of electric wires 3 at the branching point P of the wire harness W1 are determined based on the plurality of electric wire paths calculated with the identified flow, thickness, shape, and the like of the electric wire 3. The branch point information D6 for displaying each flow realistically is created so as to superimpose and display the course data and stored in the storage device 14, and then the process proceeds to step S18. For example, as shown in FIG. 7, the branch point information D6 is displayed in a state in which the electric wires 3 passing through the branch line Wb branching from the main line Wm are bundled with respect to the branch point P, and the viewpoint changing function of the screen is used. The trunk line Wm and the branch line Wb are displayed so as to be visible from a desired direction.

  In step S18 (corresponding to the cross-sectional shape information creating means), the cross-sectional shape showing the cross-sectional shape of each wire bundle of the trunk line Wm or branch line Wb with respect to the part arbitrarily determined for the branch point P in the branch point information D6 Information D7 (see FIG. 8) is created and stored in the storage device 14 in association with the branch point information D6. Thereafter, the process proceeds to step S19.

  In step S19 (corresponding to the branch point information output means), the branch point information D6 described above is output to the display device 17, whereby the branch point information D6 is displayed on the display device 17, and step S20 (cross-sectional shape information output means). The cross-sectional shape information D7 associated with the displayed branch point information D6 is output to the display device 17, so that the cross-sectional shape information D7 is displayed at a desired position on the branch point information D6 of the display device 17. Is superimposed and the display device 17 is requested to stop the display in response to a termination request from the designer or the like, and the process is terminated.

  The branch point information D6 and the cross-sectional shape information D7 described above are displayed on the display device 17 at the same time, or the branch point information D6 and the cross-sectional shape information D7 are integrally created and displayed on the display device 17. It can be.

  Next, an example of the operation (action) of the branch angle design support device 10 described above will be described below with reference to the drawings of FIGS.

  When the branch angle design support device 10 is activated by a designer or the like when designing a three-dimensional structure 2 such as an automobile, the branch angle design support device 10 acquires circuit information D1 and route information D2 corresponding to the three-dimensional structure 2 from the storage device 14 or the like. And the electric wire information D3 corresponding to the some electric wire 3 which comprises the wire harness W1 used there is collected from the memory | storage device 14 grade | etc.,.

  The circuit information D1 and the path information D2 are associated based on each terminal of the plurality of electric wires 3, and the electric wire paths of the plurality of electric wires 3 in the planar layout are calculated from the associated information, and the path information D2 and the circuit information D1 are The branch angle θ of each of the branch points P in a predetermined route is acquired based on this, the course of each wire 3 when branching at the branch angle θ based on the wire information D3 and the like is calculated, and the wire at each branch point P is calculated. 3 is generated and output to the display device 17.

  Thereby, when the branch point information D6 shown in FIG. 5 is displayed on the display device 17, the branch line Wb branched from the trunk line Wm at the branch angle θ is equal to the number of the electric wires 3 branched toward the arrow A and the arrow B The designers can visually recognize that the stress at the branch point P can be reduced by comparing the number of the wires 3 branching toward the line and changing the branch angle θ in the direction of the wavy arrow C in FIG. Can do.

  When the branch point information D6 shown in FIG. 7 is displayed on the display device 17, when attention is paid to the trunk line Wm1 and the branch line Wb1 branched from the trunk line Wm1, the in-course Ci and the out-course Co of the wire group with respect to the branch point P Since the wavy lines indicating are superimposed, the designers can recognize that the thin electric wire 3 is positioned in the in-course Ci and the thick electric wire 3 is positioned in the out-course Co. It can be estimated whether or not. Thereby, branch angle (theta) can be designed much more correctly.

  Furthermore, when the branch point information D6 and the cross-sectional shape information D7 shown in FIG. 8 are displayed on the display device 17, a plurality of cross-sectional shape information D7 corresponding to each of the trunk line Wm and the branch line Wb indicated by the branch point information D6. Therefore, the designers can easily visually check the electric wire 3 hidden in the center by referring to the cross-sectional shape information D7. Moreover, the color of the coating | covering material of each electric wire 3 of the trunk line Wm and the branch line Wb is displayed realistically as the branch point information D6. As a result, the branching angle θ can be designed more accurately.

  According to the branch angle design support device 10 described above, the obtained route information D2 and circuit information D1 are associated with each other, the wire route in each planar layout of the plurality of wires 3 is calculated, and the branch point P of the wire harness W1 is calculated. Since the branch point information D6 for displaying the flow of each of the electric wires 3 in FIG. 3 is created and output, the designers or the like can flow the electric wires 3 at the branch point P of the wire harness W1 and the electric wires 3 to be branched. Therefore, it is possible to support the design of a branching angle with less stress of the bundle of wires to be branched. Therefore, it is possible to reduce the design change that occurs when the wire harness W1 is manufactured, to easily assemble the wire harness, and to improve the durability quality.

  Moreover, the branch point information for collecting the wire information D3 corresponding to each of the plurality of wires 3 and displaying the flow and the thickness of each wire 3 so as to be visible based on the wire information D3 and the wire route. Since D6 is created, the designers can check the thickness of the wire 3 in addition to the flow of each wire 3 at the branch point P of the wire harness W1 and the number of wire bundles to be branched. The branch angle θ can be set to a more realistic angle. Therefore, the design change that occurs when the wire harness W1 is manufactured can be further reduced.

  Furthermore, the cross-sectional shape information D7 indicating the cross-sectional shape of at least one of the trunk line Wm corresponding to the branch point P or the branch line Wb branched from the trunk line Wm is created based on the wire information D3, the wire route, and the branch point P. Since this is output to support the design of the branching angle θ, the designers can check the cross-sectional shape of the bundle of wires to be branched. A realistic angle can be set.

  Further, the branch point θ of the branch point P is acquired, and at least one of the in-course Ci or the out-course Co of the electric wire group branching corresponding to the branch angle θ is calculated, and the branch point having course data indicating the course Since the information D6 is created, the designers can check the in-course Ci or the out-course Co of the branching electric wire group, so that the branch angle θ can be set to a more realistic angle. . In addition, since it is possible to consider the course at the branch point θ for the electric wires 3 passing through the same route, the length of each electric wire 3 can be calculated more accurately, contributing to the reduction of the amount of electric wires used. can do.

  In the above-described embodiment, the case where the electric wire 3 is displayed realistically by the branch point information D6 has been described. However, the present invention is not limited to this, and the thickness, rigidity, and the like of the plurality of electric wires 3 are changed by color. Thus, various embodiments such as a solid line can be used.

  Thus, the above-described embodiments are merely representative forms of the present invention, and the present invention is not limited to the embodiments. That is, various modifications can be made without departing from the scope of the present invention.

It is a block diagram which shows the basic composition of the branch angle design support apparatus which concerns on this invention. It is a figure for demonstrating an example of a solid structure and a wire harness. It is a block diagram which shows schematic structure of a branch angle design support apparatus. It is a figure for demonstrating an example of the program and various information which the memory | storage device of FIG. 3 memorize | stores. It is a figure for demonstrating an example of the design support of a branch angle. It is a flowchart which shows an example of the branch angle design assistance process which CPU of FIG. 3 performs. It is a figure for demonstrating another example of the design support of a branch angle. It is a figure for demonstrating the example of a display of branch point information and cross-sectional shape information. It is a figure which shows one form of the wiring apparatus using the conventional wiring jig. It is a figure for demonstrating the problem of the conventional wire harness.

Explanation of symbols

2 Solid structure 3 Electric wire 10 Branch angle design support device 11a Route information acquisition means (CPU)
11b Circuit information acquisition means (CPU)
11c Electric wire route calculation means (CPU)
11d Branch point information creation means (CPU)
11e Branch point information output means (CPU)
11f Electric wire information collecting means (CPU)
11g Sectional shape information creation means (CPU)
11h Sectional shape information output means (CPU)
11i Branch angle acquisition means (CPU)
W1 Wire harness W2 Connector Wm Main line Wb Branch line

Claims (6)

A branch angle design support device that supports design of a branch angle of a branch point in the wire harness when a wire harness in which a plurality of electric wires forming a three-dimensional structure are bundled in a plane layout shape,
Route information acquisition means for acquiring route information indicating the route of the wire harness;
Circuit information acquisition means for acquiring circuit information indicating a circuit of the wire harness;
Based on the terminals of each of the plurality of electric wires, the route information acquired by the route information acquisition unit is associated with the circuit information acquired by the circuit information acquisition unit, and the plurality of electric wires in the planar layout are obtained from the associated information. A wire route calculating means for calculating each wire route of
Based on a plurality of electric wire routes calculated by the electric wire route calculating means, branch point information creating means for creating branch point information for displaying each flow of the electric wire at the branch point of the wire harness,
Branch point information output means for outputting the branch point information created by the branch point information creation means to support the design of the branch angle;
A branch angle design support device characterized by comprising: Wire information collecting means for collecting wire information corresponding to each of the plurality of wires,
The branch point information creating means is means for creating the branch point information for displaying the flow and thickness of each of the electric wires so as to be visible based on the electric wire information and the electric wire route. The branch angle design support apparatus according to claim 1. A cross-sectional shape showing a cross-sectional shape of at least one of a trunk line corresponding to the branch point or a branch line branched from the trunk line based on the wire information collected by the wire information collection means, the wire route information, and the branch point information Cross-sectional shape information creating means for creating information;
Cross-sectional shape information output means for outputting the cross-sectional shape information created by the cross-sectional shape information creation means to support the design of the branch angle;
The branch angle design support apparatus according to claim 2, wherein A branch angle obtaining means for obtaining a branch angle at the branch point;
Based on the branch angle acquired by the branch angle acquisition unit, the electric wire information, and the electric wire route, the branch point information creating unit is at least an in-course or an out-course of an electric wire group that branches corresponding to the branch angle. The branch angle design support apparatus according to any one of claims 1 to 3, wherein the branch angle design support device calculates one of the points and creates the branch point information having course data indicating the course. A branch angle design support method for supporting the design of a branch angle of a branch point in the wire harness when a wire harness in which a plurality of electric wires forming a three-dimensional structure are bundled in a plane layout shape,
A route information acquisition step of acquiring route information indicating the route of the wire harness;
A circuit information acquisition step of acquiring circuit information indicating a circuit of the wire harness;
An electric wire route that associates the acquired route information with the acquired circuit information based on the terminals of each of the plurality of electric wires, and calculates the electric wire routes of the plurality of electric wires in the planar layout from the associated information. Calculation process;
Based on the calculated plurality of electric wire paths, a branch point information creating step for creating branch point information for displaying each flow of the electric wire at the branch point of the wire harness,
In order to support the design of the branch angle, a branch point information output step for outputting the created branch point information;
A branch angle design support method characterized by comprising: A computer of a branch angle design support device that supports design of a branch angle of a branch point in the wire harness when a wire harness in which a plurality of electric wires forming a three-dimensional structure are bundled in a plane layout shape,
Route information acquisition means for acquiring route information indicating the route of the wire harness;
Circuit information acquisition means for acquiring circuit information indicating a circuit of the wire harness;
Based on the terminals of each of the plurality of electric wires, the route information acquired by the route information acquisition unit is associated with the circuit information acquired by the circuit information acquisition unit, and the plurality of electric wires in the planar layout are obtained from the associated information. A wire route calculating means for calculating each wire route of
Branch point information creating means for creating branch point information for displaying the flow of each of the electric wires at the branch point of the wire harness based on the plurality of wire paths calculated by the wire path calculating means,
Branch point information output means for outputting the branch point information created by the branch point information creation means to support the design of the branch angle;
Branch angle design support program to function as

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