JP4400246B2 - Apparatus and program for calculating movable range of linear material - Google Patents

Description

  The present invention relates to calculation of a linear material movable range for calculating a movable range of a linear material locked by two locking portions, and particularly relates to one having a branch point.

  In automobiles and home appliances, a large number of linear materials (cables) are used for power supply and signal transmission. For this large number of cables, the cables to be bundled are bundled into one bundle, and this is made into a wire harness (W / H) covered with a skin material, and this W / H is fixed to the main body with a locking material at a predetermined part. It is fixed and the cable is branched at the necessary part.

  In designing the route and locking points of the wire harness, it is important to recognize the movable range of the wire harness. In particular, since the movable range of the wire harness varies depending on a plurality of factors such as the number of bundled wires, the length between locking points, and the type of skin material, it is necessary to consider this.

  Patent Document 1 shows that the movable range between the locking points of the wire harness is calculated in consideration of various conditions.

JP 2003-330982 A

  However, in the above-mentioned Patent Document 1, the movable range of the wire harness between the two locking points is targeted, and the movement of the branch point is not taken into consideration. In an actual wire harness, there is a branch point where the wire branches, and it is desired to consider this.

  An object of the present invention is to provide an apparatus and a program for calculating a movable range of a linear material such as a wire harness in consideration of a branch point.

  The present invention is a linear material movable range calculating device for calculating a movable range of a linear material having one branch point between two locking points, the rigidity of the linear material, and the linear material Branch point maximum movable point for calculating the maximum movable point in a predetermined number of branch points when the linear member is deformed based on the length and the branching point of the linear member and the locking direction of the locking point Based on the calculation means, the rigidity of the linear material, the length of the linear material, and the locking direction of the linear material at the branch point or the locking point, the calculation is performed by the branch point maximum movable point calculation means. Point-to-point movable range calculation means for calculating a movable range of the linear material between the locking points when the linear material is deformed for each maximum movable point, and calculating the inter-point movable range Register the maximum movable range obtained by integrating the movable range for each maximum movable point obtained by the means. And calculates the movable range of the linear member includes a branch point by Rukoto.

  The present invention is a linear material movable range calculation device for calculating a movable range of a linear material having two or more branch points between two locking points, the rigidity of the linear material, A branch point that calculates the maximum movable point in a predetermined number of directions for each branch point when the linear material is deformed based on the length of the material, the branch point of the linear material, and the locking direction of the locking point Based on the maximum movable point calculation means, the rigidity of the linear material, the length of the linear material, and the locking direction of the linear material at the branch point or the locking point, each maximum movable point for one branch point For the point and each maximum movable point of the adjacent branch point, the branch point movable range calculating means for calculating the movable range of the linear material when the linear material is deformed, and the branch point maximum movable point calculating means For each maximum movable point calculated by the above, the locking point when the linear material is deformed and Point-to-point movable range calculating means for calculating the movable range of the linear material between them, and the movable about each maximum movable point obtained by the movable range calculating means between the branch points and the point-to-point movable range calculating means The movable range of the linear material including the branch point is calculated by registering the maximum movable range obtained by combining the ranges.

  The maximum movable point calculated by the branch point maximum movable point calculating means is preferably six points which are limit points in three directions perpendicular to each other.

  Further, the present invention is a program for calculating a movable range of a linear member that calculates a movable range of a linear member having one branch point between two locking points, the program being stored in a computer, Based on the input data fetching procedure for fetching input data including the stiffness of the linear material, the length of the linear material, the branching point of the linear material and the locking direction of the locking point, and the input data, Based on the branch point maximum movable point calculation procedure for calculating the maximum movable point in the predetermined number of directions of the branch point when the shape material is deformed, and each of the branch point maximum movable point calculation means based on the input data The maximum movable point was obtained by the point-to-point movable range calculation procedure for calculating the movable range of the linear member between the locking points when the linear member is deformed and the point-to-point movable range calculation procedure. For each maximum movable point The calculation procedure for calculating the movable range of the linear material including the branch point by registering the maximum movable range obtained by combining the movable ranges of the current and the output procedure for outputting the calculated movable range are executed. It is characterized by that.

Further, the present invention is a program for calculating a movable range of a linear material that calculates a movable range of a linear material having two or more branch points between two locking points, the program being a computer Based on the input data, the input data capturing procedure for capturing the input data including the rigidity of the linear material, the length of the linear material, and the branching point of the linear material and the locking direction of the locking point. A branch point maximum movable point calculation procedure for calculating the maximum movable point in a predetermined number of directions of the branch point when the linear material is deformed, and each maximum movable point for one branch point based on the input data, For each maximum movable point of the adjacent branch point, the calculation is based on the branch point movable range calculation procedure for calculating the movable range of the linear member when the linear member is deformed, and the branch point maximum movable point calculation procedure. Each maximum movable point For it, epilepsy movable range calculating procedure, a movable range between the branch point between the movable range calculation procedure and the point of calculating the movable range of the linear member between the said locking points in a modified version of a linear material Calculation procedure for calculating the movable range of the linear material including the branch point by registering the maximum movable range obtained by integrating the movable range for each maximum movable point obtained by the calculation procedure, and the calculated movable range And outputting an output procedure.

  According to the present invention, when a branch point exists, the maximum movable range of this branch point is calculated as a predetermined number of maximum movable points. Then, the maximum movable range of the linear member can be calculated and calculated between the predetermined number of obtained branch point maximum movable points and the locking points. Moreover, the maximum movable range between the branch points can be calculated as a problem between the maximum movable points at each branch point, thereby calculating the movable range. Therefore, it is possible to calculate the movable range of a linear material such as a wire harness in consideration of the branch point.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  First, a linear material movable range calculating device according to the present invention is basically configured by a computer, and the computer executes a linear material movable range calculating program to function as a linear material movable range calculating device. To do.

  The movable range calculation device has input means such as a keyboard and communication means, captures various input data, and stores them in a storage medium such as an internal hard disk. The CPU executes a program stored therein while using a RAM or the like, calculates the movable range of the linear material based on the input data, and outputs this to a display or a printer. The storage medium also stores intermediate or final data of processing.

  A wire harness (W / H) in a vehicle is taken up as a linear material, and calculation of the movable range of this W / H will be described below.

  First, for the basic operation not related to the branch point, the same technique as that disclosed in Japanese Patent Laid-Open No. 2003-330982 is adopted. Therefore, processing mainly related to the branch point will be described with reference to FIG.

  First, a table for the minimum bending radius, maximum amplitude, etc. for W / H is created only once in the preparation stage (S11). This is performed by storing, as a table, data obtained by collecting data obtained by conducting an experiment under a predetermined condition for a plurality of types of W / H having different types of W / H, locking methods, and the like. Thus, the characteristic value can be obtained from this table thereafter depending on the type of W / H.

  Next, the W / H is specified, and the W / H rigidity, the length, the locking point (fixed point) and the W / H at the branch point between the two locking points for the target W / H are determined. Input data (calculation conditions) necessary for the calculation, such as the locking direction and the number of branch points, are fetched (S12).

  Next, based on the number of branch points taken in, the number of branch points between the two locking points of the target W / H is determined (S13). In this determination, if the number of branch points is 0, the movable range calculation in Japanese Patent Application Laid-Open No. 2003-330982 can be used, so a movable range shape is created between two fixed points (locking points) (S14).

  If it is determined in S11 that the number of branch points is 1, first, the movable range of the branch points is obtained (S15). Then, a movable range between the obtained branch point of the movable range and the fixed point is obtained, and a movable range shape is created (S16).

  If it is determined in S11 that the number of branch points is 2, first, a movable range of the branch points is obtained (S17). Then, a movable range shape between the branch points is created (S18), and then a movable shape is created between the fixed points and the branch points (S19).

  After that, processing for the movable range such as maximum amplitude correction and shifting the surface to the outer periphery of the movable range is performed (S20), and the screen or printer output for the obtained W / H movable range is performed. In this way, the movable range shape of W / H between two fixed points can be created and output even when there is a branch point.

  Next, the movable range calculation of the branch point in S15 will be described based on FIG.

  First, the movable BOX at the branch point is obtained based only on the W / H length data (S21). That is, at the bifurcation point, the rough movable range of the bifurcation point is assumed on the basis of the length of the W / H to the fixed points on both sides and the length of the bifurcation W / H. Determine which movable box is. In particular, in this example, the movable BOX is a rectangular parallelepiped area that is defined by the maximum movable range in the three directions of three-dimensional x, y, and z defined in advance.

  Next, the center point of this movable BOX is calculated (S22). The movable BOX is a rectangular parallelepiped, and its center can be easily calculated.

  When the center point is determined in this way, the branch point is moved from the center point in the three orthogonal directions of L, W, and H to obtain the maximum movable point.

  First, the maximum movable point and the minimum movable point in the + L direction and the −L direction, which are the length directions of W / H, are obtained (S23). In other words, the point moving in the + L direction from the center point of the BOX is moved, and at the moved point, the point moves to a position where all the W / H paths exiting from the branch points are established, and the maximum movable point in the + L direction is obtained. In the same manner as the flow, the minimum movable point in the −L direction is obtained. Note that the calculation in this case also takes into account the rigidity of W / H, the locking direction at the fixed point and the branch point.

  The maximum movable point and the minimum movable point are obtained in the same manner for the ± W direction and the ± H direction (S24, S25).

  In this way, three maximum movable points and three minimum movable points can be obtained for one branch point. The three maximum movable points and the three minimum movable points are points that determine the maximum movable range in three directions as operations, and are referred to as six movable clamp points.

  Next, the movable range calculation process between the branch point and the fixed point in S16 will be described with reference to FIG. First, a movable range between six movable clamp points and fixed points is calculated (S31). This calculation is performed by taking out the movable clamp points one by one and performing the calculation between one movable clamp point and one fixed point 6 times for one fixed point. Since it is performed for one fixed point, 12 calculations are performed.

  The maximum and minimum points obtained in this way are extracted from the movable range and registered (S32). This is performed by taking out eight points corresponding to the outermost periphery in a plurality (in this case, seven cross-sections) obtained at a predetermined interval in the movable range obtained from one locking point and one movable clamp point. This is performed for all six movable clamp points, and the maximum and minimum points on each step surface are taken out, whereby a movable range that defines the outer peripheral surface of the movable range is obtained as a point sequence.

  In this way, the movable range calculation between the branch point and the fixed point is performed for both the pair of fixed points (locking points), so that the movable range in the case where one branch point exists between the two fixed points. Is calculated.

  Next, when there are two or more branch points between two fixed points, it is necessary to calculate the movable range between the branch points. This will be described with reference to FIG.

  For each branch point, six movable clamp points are obtained as described above. Thus, for one movable clamp point at one branch point, a movable range is obtained for each of the six movable clamp points at the other branch point, and this is repeated for the six movable clamp point points, so that all movable points can be obtained. A movable range between the clamp points is calculated (S41).

  Then, a maximum point and a minimum point group are obtained from the obtained movable range (S42). This is repeated for seven cross sections between two branch points as in the case described above, and the maximum and minimum points in each cross section are registered.

  Thus, since the movable range between the fixed point branch points and between the branch points can be calculated, the entire range of W / H is divided between the fixed point branch points and between the branch points, and the respective calculations are performed. The movable range of W / H can be calculated.

  Note that the maximum amplitude correction processing on each step surface, the calculation of the three-dimensional movable range from the eight maximum and minimum values of each cross section, and the like may be performed based on the method described in Japanese Patent Application Laid-Open No. 2003-330982.

  Thus, according to the present embodiment, the movable range of W / H when a branch point exists can be calculated in consideration of the movable range of the branch point.

  The obtained W / H movable range can be easily used for subsequent design by outputting the curved surface to a file in IGES format or STL format. That is, according to the obtained movable range, the arrangement of W / H locking points, branching points, and the like can be determined, and the arrangement of other members can be considered in consideration of this arrangement.

It is a flowchart which shows the whole operation | movement of the process of embodiment. It is a flowchart about calculation of the movable range of a branch point. It is a flowchart about calculation of the movable range between a branch point and a fixed point. It is a flowchart about the calculation of the movable range between branch points.

Claims (5)

A linear material movable range calculating device for calculating a linear material movable range having one branch point between two locking points,
A predetermined number of directions of branch points when the linear material is deformed based on the rigidity of the linear material, the length of the linear material, and the branching point of the linear material and the locking direction of the locking point A branch point maximum movable point calculating means for calculating the maximum movable point in
Each maximum movable point calculated by the branch point maximum movable point calculation means based on the rigidity of the linear material, the length of the linear material, and the locking direction of the linear material at the branch point or the locking point. About, a point-to-point movable range calculating means for calculating a movable range of the linear material between the locking point when the linear material is deformed,
Have
The movable range of the linear material including the branch point is calculated by registering the maximum movable range obtained by combining the movable ranges for each maximum movable point obtained by the point-to-point movable range calculating means. A movable range calculation device for a linear material. A linear material movable range calculating device for calculating a linear material movable range having two or more branch points between two locking points,
Based on the rigidity of the linear material, the length of the linear material, the branching point of the linear material and the locking direction of the locking point, a predetermined number of each branch point when the linear material is deformed A branch point maximum movable point calculating means for calculating the maximum movable point in the direction;
Based on the rigidity of the linear material, the length of the linear material, and the locking direction of the linear material at the branch point or the locking point, each maximum movable point for one branch point, and adjacent branch points For each of the maximum movable points, the movable range calculating means between the branch points for calculating the movable range of the linear material when the linear material is deformed,
For each maximum movable point calculated by the branch point maximum movable point calculating unit, a point-to-point movable range calculating unit that calculates a movable range of the linear member between the locking point when the linear member is deformed. When,
Have
By registering the maximum movable range obtained by integrating the movable range for each maximum movable point obtained by the branch point movable range calculating unit and the point-to-point movable range calculating unit, the linear material including the branch point is registered. An apparatus for calculating a movable range of a linear material, wherein the movable range is calculated. The apparatus according to claim 1 or 2,
The maximum movable point calculated by the branch point maximum movable point calculating means is six points which are limit points in three directions perpendicular to each other, and the linear material movable range calculating device. A program for calculating a movable range of a linear member that calculates a movable range of a linear member having one branch point between two locking points,
The program is stored on a computer.
An input data capturing procedure for capturing input data including the rigidity of the linear material, the length of the linear material, and the branching direction of the linear material and the locking direction of the locking point;
Based on the input data, a branch point maximum movable point calculation procedure for calculating a maximum movable point in a predetermined number of directions of branch points when the linear material is deformed,
Based on the input data, for each maximum movable point calculated by the branch point maximum movable point calculating means, a movable range of the linear material between the locking point when the linear material is deformed is calculated. Point-to-point movable range calculation procedure,
A calculation procedure for calculating a movable range of a linear material including a branch point by registering a maximum movable range obtained by combining a movable range for each maximum movable point obtained by the point-to-point movable range calculation procedure;
An output procedure for outputting the calculated movable range;
A program for calculating a movable range of a linear material, characterized in that A program for calculating a movable range of a linear member that calculates a movable range of a linear member having two or more branch points between two locking points,
The program is stored on a computer.
An input data capturing procedure for capturing input data including the rigidity of the linear material, the length of the linear material, and the branching direction of the linear material and the locking direction of the locking point;
Based on the input data, a branch point maximum movable point calculation procedure for calculating a maximum movable point in a predetermined number of directions of branch points when the linear material is deformed,
Based on the input data, the branch point for calculating the movable range of the linear material when the linear material is deformed for each maximum movable point for one branch point and each maximum movable point of the adjacent branch point Between the movable range calculation procedure,
Point-to-point movable range calculation procedure for calculating the movable range of the linear material between the locking point when the linear material is deformed for each maximum movable point calculated by the branch point maximum movable point calculation procedure When,
By registering the maximum movable range obtained by integrating the movable range for each maximum movable point obtained by the procedure for calculating the movable range between branch points and the procedure for calculating the movable range between points, the linear material including the branch point is registered. A calculation procedure for calculating the movable range;
An output procedure for outputting the calculated movable range;
A program for calculating a movable range of a linear material, characterized in that

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