JP4442362B2 - Device, method and program for calculating movable range of wire rod - Google Patents

Description

  The present invention provides a movable range of a wire rod that is locked by two locking portions, or a wire rod that has a branch portion in the middle and that has two or more ends locked by the locking portion. The present invention relates to a calculation apparatus, method, and program.

In automobiles and home appliances, many cables are used for power supply and signal transmission. However, if these cables are all arranged independently, the operation becomes complicated and the routing of the cables becomes complicated. For this reason, it is a common practice to bundle a plurality of cables into one bundle and cover them with a skin material to form a wire harness.
Although this wire harness is locked by a locking member at a predetermined location, the wire harness is attached with a certain margin in length so that a force in the pulling direction is not applied to the wire harness between the locking locations.
On the other hand, especially in automobiles, many engine-related parts and electrical parts are installed at the place where the wire harness is placed, so it is important to perform layout and routing so that the wire harness does not interfere with these parts. It is.

Therefore, the layout of the wiring harness and the design of the routing are generally performed by a skilled designer based on their experience and through evaluation.
However, such a design is often inefficient, and lacks adaptability to design changes and different models.
Therefore, a technique for simulating the movable range of the wire harness has been devised in order to increase the efficiency of the layout of the wire harness and the routing design (see Patent Document 1).
The technique of Patent Literature 1 calculates the movable range of the wire rod locked by the two locking portions, compares the maximum amplitude amount in the calculated movable range with the actually measured maximum amplitude amount, and based on the comparison result. Correction. As a result, the physical properties and size of the wire rod can be taken into consideration, and the amount of experiment can be relatively reduced.
JP 2003-330982 A

Even with the technique described in Patent Document 1 described above, the movable range of the wire harness can be calculated to some extent, but it is required to calculate the movable range of the wire harness with higher accuracy.
Moreover, since only the movable range between two points was calculated, in the case of a wire harness having a branching portion in the middle, it was necessary to calculate the movable range a plurality of times, which was troublesome.
Furthermore, in the case of a wire harness having a branch point in the middle, the branch point is not fixed and moves within a certain range, so it is difficult to accurately determine the position of the branch point. The movable range could not be obtained with high accuracy.

An apparatus, method, and program for calculating a movable range of a wire rod that solve the above problems have the following characteristics.
That is, the apparatus for calculating the movable range of the linear material locked by the two locking portions as in claim 1, and means for inputting information relating to the calculation condition of the movable range of the linear material And means for calculating the maximum movable range surface of the linear material based on the length information of the linear material as input information, means for dividing the calculated maximum movable range surface into a plurality of lattices, and two points Means for setting a center point corresponding to each grid point formed by grid division on the line connecting the locking parts, and taking into account the length of the wire rod and the minimum bending radius among the input information For each grid point, a path of the line material passing through a certain point on the line connecting the grid point and the corresponding center point and the two locking portions, and a path bent according to the minimum bending radius Of these, the path length is substantially the same as the length of the input wire rod, and A route calculation means for searching for a route in which a certain point on a line connecting the lattice point and the corresponding center point is located closest to the lattice point; Means for calculating an actual movable range of the line material using a point on a line connecting the corresponding center point.
As a result, the actual movable range of the wire material such as a wire harness can be obtained and expressed with high accuracy and promptly, and the judgment as to whether or not the wire material interferes with other parts can be made regardless of the person. It can be done easily.

In addition, as described in claim 2, the paths searched by the path calculation unit are each on a line connecting one locking part, the other locking part, or a lattice point and the corresponding center point. It is composed of a plurality of paths on a virtual spherical surface passing through a point and a path connecting paths on the virtual spherical surface.
As a result, the actual bending condition of the wire rod can be faithfully reproduced, and the path of the wire rod can be expressed with high accuracy.

According to a third aspect of the present invention, the linear material movable range calculating device includes means for correcting the calculated actual movable range of the linear material based on the input linear material and the specification of the locking portion. And further.
Thereby, the movable range of the wire material such as a wire harness can be appropriately corrected according to the specification of the wire material, the clamp specification, etc., and the actual movable range of the wire material can be obtained with higher accuracy. It becomes possible.

Further, according to claim 4, there is provided an apparatus for calculating a movable range of a wire rod having a branch portion in the middle and having two or more ends locked by the lock portion, the wire rod Means for inputting information on the calculation condition of the movable range, means for calculating the movable range of the branch portion based on the length information of the wire rod as input information, the calculated movable range of the branch portion, Means for calculating the maximum movable range surface of the region from the fixed point to the branching portion and / or the region from the branching portion to the branching portion based on the length information of the wire rod as input information And a means for dividing the calculated maximum movable range surface into a plurality of lattices, and a line connecting the locking portion and the branching portion and / or the branching portion and the branching portion in each region of the wire rod. Means for setting the center point corresponding to each grid point Among the information obtained, for each grid point, taking into account the length and minimum bending radius of each region of the wire rod, a certain point on the line connecting the grid point and the corresponding center point, The length of each path of the line material in which the path length is input among the paths of each region of the line material that passes through the branch point or the branch point and the branch point, and is bent according to the minimum bending radius. And a route calculation unit that searches for a route that is closest to the grid point, and a route calculation unit that searches for a point on the line connecting the grid point and the corresponding center point in the route. Means for calculating the actual movable range of the wire rod using points on the line connecting the lattice point and the corresponding center point in each path.
As a result, even if the wire material such as a wire harness has a branch part in the middle and is in a movable state within a certain range, the actual movable range of the wire material is highly accurate and It becomes possible to quickly obtain and express, and it is possible to easily determine whether or not the wire rod interferes with other parts regardless of a person.

Further, as described in claim 5, the paths searched by the route calculation unit are respectively a locking part or a branching part on one end side of each region, a locking part or a branching part on the other end side of each region, Alternatively, a path on a plurality of virtual spheres passing through a point on a line connecting the lattice point and the corresponding center point and a path connecting paths on the virtual sphere are configured.
As a result, the actual bending condition of the wire rod can be faithfully reproduced, and the path of the wire rod can be expressed with high accuracy.

According to a sixth aspect of the present invention, the moving range calculation device for the linear material includes means for correcting the calculated actual movable range of the linear material based on the input linear material and the specification of the locking portion. Further prepare.
As a result, the movable range of the wire material such as the wire harness can be appropriately corrected according to the exterior material specification or the clamp specification of the wire material, and the actual movable range of the wire material is obtained with higher accuracy. Is possible.

According to a seventh aspect of the present invention, there is provided a method for calculating a movable range of a wire rod that is locked by two locking portions. The step of inputting, the step of calculating the maximum movable range surface of the line material based on the length information of the line material as input information by the maximum movable range calculating means, and the maximum movable calculated by the grid dividing means Dividing the range surface into a plurality of grids, and setting a center point corresponding to each grid point formed by grid division on a line connecting the two locking portions by the center point setting means; A certain point on the line connecting the lattice point and the corresponding center point, for each lattice point, taking into account the length of the wire rod and the minimum bending radius among the information input by the path calculation means, and 2 a path of the wire member through the locking portion of the point, most Of the bending of the bent route in accordance radius, a substantially the same as the length of the path length is input the wire member, is a point in the line connecting the center point and a corresponding grid point in the path, the most By using a point on a line connecting the lattice point and the corresponding center point in each route searched by the route calculation means by means for searching for a route located near the lattice point and the actual movable range calculation means And a step of calculating an actual movable range of the wire rod.
As a result, the actual movable range of the wire material such as a wire harness can be obtained and expressed with high accuracy and promptly, and the judgment as to whether or not the wire material interferes with other parts can be made regardless of the person. It can be done easily.

Further, as described in claim 8, there is a method for calculating a movable range of a linear member having a branch portion in the middle and having two or more end portions locked by the locking portion, by an input means, A step of inputting information relating to a condition for calculating the movable range of the wire rod, and a step of calculating the movable range of the branching portion based on the length information of the wire rod as input information by the branching portion movable range calculating means. And a region from the fixed point to the branch part in the wire rod based on the movable range of the branch portion calculated by the maximum movable range calculation means and the length information of the wire rod as input information, and / or Alternatively, the step of calculating the maximum movable range surface of the region from the branching portion to the branching portion, the step of dividing the calculated maximum movable range surface into a plurality of lattices by the grid dividing means, and the center point setting means, Locking and branching parts in each area of the material Of the information inputted by the path calculation means, the step of setting the center point corresponding to each grid point formed by grid division on the line connecting the branch part and / or the branch part, Considering the length of each region and the minimum bending radius, for each grid point, there is a point on the line connecting the grid point and the corresponding center point, and the locking part and the branch point or the branch point and the branch point. The path of each region of the line material that passes through, the path length of the path bent according to the minimum bending radius is substantially the same as the length of each path of the input line material, and the grid in the path A step of searching for a route where a point on the line connecting the point and the corresponding center point is located closest to the lattice point, and in each route searched by the route calculation unit by the actual movable range calculation unit, A grid point and its corresponding center point Department using point on the line, and a step of calculating an actual moving range of line material.
As a result, even if the wire material such as a wire harness has a branch part in the middle and is in a movable state within a certain range, the actual movable range of the wire material is highly accurate and It becomes possible to quickly obtain and express, and it is possible to easily determine whether or not the wire rod interferes with other parts regardless of a person.

According to a ninth aspect of the present invention, there is provided a program for calculating a movable range of a linear material locked by two locking portions, which causes the computer to sequentially execute the following procedures. It is a movable range calculation program.
1) Procedure for calculating the maximum movable range surface of the linear material based on the input length information of the linear material 2) Procedure for dividing the calculated maximum movable range surface into a plurality of grids 3) Relation between two points Procedure 4) to set the center point corresponding to each grid point formed by grid division on the line connecting the stop part 4) Among the input information, while considering the length of the wire rod and the minimum bending radius, For each grid point, a path of the line material passing through a certain point on the line connecting the grid point and the corresponding center point, and the two locking portions, out of the paths bent according to the minimum bending radius The path length is approximately the same as the length of the input line material, and a path on the line connecting the grid point and the corresponding center point in the path is located closest to the grid point. Retrieval procedure 5) Lattice points and corresponding points in each retrieved route Procedure for calculating the actual movable range of the line material using the points on the line connecting to the center point. By this, the actual movable range of the wire material such as the wire harness is quickly and accurately obtained and expressed. Therefore, it is possible to easily determine whether or not the wire rod interferes with other parts regardless of the person.

According to a tenth aspect of the present invention, there is provided a program for calculating a movable range of a linear member having a branch portion in the middle and having two or more end portions locked by the locking portion. A program for calculating a movable range of a wire rod that sequentially executes the following procedures.
1) A procedure for calculating the movable range of the bifurcation based on the length information of the input wire material,
2) Based on the calculated movable range of the branch part and the length information of the line material as input information, the region from the fixed point to the branch part and / or from the branch part to the branch part in the wire material 3) A procedure for calculating the maximum movable range surface of each region 3) A procedure for dividing the calculated maximum movable range surface into a plurality of lattices 4) A locking portion and a branch portion and / or a branch portion and a branch in each region of the wire rod Procedure for setting the center point corresponding to each grid point formed by grid division on the line connecting the sections 5) Considering the length and minimum bending radius of each region of the line material among the input information while, for each grid point, the path of each region of the wire member through a point in the line connecting the center point and a corresponding grid point, the the locking portion and the branch point or branch point and branch point met Te, of the bent route according to the minimum bend radius The path length is substantially the same as the length of each path of the input line material, and a certain point on the line connecting the grid point and the corresponding center point in the path is located closest to the grid point Procedure for searching for a route 6) Procedure for calculating the actual movable range of the line material using the points on the line connecting the lattice point and the corresponding center point in each searched route. Even if the wire rod has a branch part in the middle and it is in a movable state within a certain range, the actual movable range of the wire rod is obtained with high accuracy and speed and expressed. Thus, it is possible to easily determine whether or not the wire rod interferes with other parts regardless of the person.

  According to the present invention, whether the wire rod is a wire rod clamped at two fixed points and does not have a branch point in the middle or a wire rod having a branch point in the middle. Therefore, it is possible to obtain and express the actual movable range of wire rods such as wire harnesses with high accuracy and speed, and whether or not the wire rods interfere with other parts It can be done easily.

  Next, modes for carrying out the present invention will be described with reference to the accompanying drawings.

[First Embodiment]
First, the example which calculates | requires the movable range of the wire harness clamped by two fixed points (locking part) and does not have a branch point in the middle part is demonstrated.
The movable range calculation device for a wire rod according to the present invention is basically configured by a computer, and includes an input unit 1, a calculation unit 2, an output unit 3, and a storage unit 4 as shown in FIG. I have.
And a computer functions as a movable range calculation apparatus by running the program for movable range calculation of a filament material in the calculating part 2. FIG.

First, the general operation when the movable range of the wire harness is calculated by the movable range calculation device will be described.
As shown in FIG. 2, first, input processing such as calculation conditions for calculating the movable range of the wire harness is performed in the input unit 1 (S1). In this input process, the conditions for the wire harness that is the actual calculation target are input. This input is performed manually, for example.
Next, calculation processing of the wire harness movable range between the two fixed points is performed by the calculation unit 2 (S2), and processing for correcting the maximum amplitude amount calculated by the movable range calculation processing is performed (S3). ) The output unit 3 outputs the movable range surface of the wire harness.

Next, each process will be described in detail.
[Calculation condition input process (S1)]
As shown in FIG. 3, in the input process of step S <b> 1, first, input of calculation conditions such as the length and thickness of the wire harness, the exterior type, the mounting direction of the clamp that holds the wire harness and the clamp type are input. This is performed in part 1 (S11).
In the storage unit 4 of the movable range calculation device, a minimum bending radius comparison table as shown in FIG. 4 and an amplitude correction table as shown in FIG. 5 are stored in advance, and the minimum bending radius and amplitude correction of the calculation unit 2 are stored. The rate reference unit 21 extracts and refers to the minimum bending radius value (minimum bending radius value) of the corresponding wire harness from the input wire harness thickness and exterior type, and the input clamp type and wire. The corresponding amplitude correction factor is extracted and referenced from the harness exterior type (S12).
Here, the values in the minimum bending radius comparison table and the amplitude correction table are obtained by performing measurement or experiment for each specification of the wire harness and the clamp.

[Wire harness movable range calculation process between two fixed (S2)]
When necessary calculation conditions and the like are input, the movable range of the wire harness between the two points fixed by the calculation unit 2 is calculated.
In the calculation process of the movable range, first, the maximum elliptical rotation surface that is the maximum movable range of the wire harness between two points is obtained by the maximum movable range calculation unit 22, and the obtained maximum elliptical rotation surface is grid-shaped by the lattice dividing unit 23. Dividing and calculating the coordinates of the lattice point group (S21).
Next, each lattice point is pulled inwardly of the ellipse rotation surface, and the pull direction calculation is performed by the pull direction calculation unit 24 (S22), and the wire harness path when the wire harness passes through each lattice point is searched. Is performed by the route calculation unit 25 using a polygonal line approximation method (S23).
This calculation of the pulling direction (S22) and the wire harness route search (S23) are repeated and performed for all the lattice points. Thereby, the movable range of the wire harness between two points can be calculated by the actual movable range calculation unit 26.
In other words, the elliptical rotation plane determined by the length of the input wire harness is the maximum movable range of the wire harness, and the elliptical rotation plane calculated by the polygonal line approximation method considering the minimum rotation radius of the wire harness is the wire harness. Is the actual movable range that can actually move.

The calculation process step (S21) of the lattice point group on the maximum elliptical rotation surface is performed as follows.
First, as shown in FIG. 7, a local coordinate system (x, y, z) with the origin at the bisection point of the line segment connecting the both end fixing points P1 and P2 of the wire harness 51 is considered. , P1 (−c, 0, 0), P2 (c, 0, 0), the length of the wire harness 51 is a, and the dimension between the fixed points at both ends is 2c.
In this coordinate system, when one point of the wire harness 51 is pulled outward so as to be in a relaxed state, and the tensile point is rotated on the xy plane, an ellipse represented by Equation 1 is obtained as shown in FIG. Is obtained. However, b in Formula 1 is an integer that satisfies b2 = a2-c2.

  Then, when the ellipse represented by Equation 1 is rotated about the x axis, an ellipse rotation surface represented by Equation 2 is obtained.

When the elliptical rotation surface thus obtained is divided into N in the x-axis direction and divided into M in the rotation direction, a plurality of lattice points K are generated as shown in FIG. In this case, the number of generated grid points is (N + 1) × M.
After the elliptical rotation plane is divided into grids, these (N + 1) × M coordinates are obtained.

Moreover, the calculation process (S22) of a pull direction is performed as follows.
In the wire harness path search step (S23) to be performed next, the actual movable range of the wire harness is calculated. At this time, an operation of pulling each lattice point in a certain direction inside the elliptical rotation surface is performed. Therefore, in the pulling direction calculation step (S22), the direction in which the lattice points are pulled is obtained in advance.

First, as shown in FIG. 10, a straight line connecting fixed points P1 and P2 is defined as an elliptical center line.
In addition, the pulling direction calculation unit 23 includes coordinate values (XP1, YP1) of the fixed point P1, coordinate values (XP2, YP2) of the fixed point P2, coordinate values (XK, YK) of the lattice point K, and the wire harness. A length (L + M) is set.

Based on these set values, a tensile center point S with respect to the lattice point K is obtained. The pulling center point S is obtained as the coordinate value (XS, YS) of the point on the ellipse center line where L: M = L ′: M ′.
From this pulling center point S and the lattice point K, a vector V representing the pulling direction of the lattice point K is obtained. The vector V is represented by V = (XS−XK, YS−YK).

  Thus, the pulling center point S moves along the elliptical center line according to the ratio of the wire harness length L from the fixed point P1 to the lattice point K and the wire harness length M from the lattice point K to the fixed point P2. When the lattice point is located at the center like the lattice point K1 shown in FIG. 11, the vector V1 from the lattice point K1 toward the pulling center point S1 and the lattice point like the lattice point K2 shown in FIG. The direction and length of the vector V2 from the lattice point K2 toward the pulling center point S2 when located at the end is different.

Next, the wire harness route search step (S23) will be described.
As shown in FIG. 13, in the wire harness that has considered the maximum elliptical rotation surface so far (the dotted line connecting P1 to K2 in FIG. 13), only the length data is used, and the minimum bending radius is considered. However, in the actual wire harness (thick line connecting P1 and P2 in FIG. 13), there is a minimum bending radius, so the movable range is smaller than the maximum elliptical rotation surface. That is, the lattice point K of the wire harness that does not consider the minimum bending radius is the point P5 located inside the maximum elliptical rotation surface in the wire harness that considers the minimum bending radius.
Therefore, in this process, a path that the wire harness can take between P1 and P2 is searched while considering the minimum bending radius, and the coordinates of the point P5 are obtained.

When considering the path of the wire harness, first, as shown in FIGS. 14 and 15, a torus surface is set at fixed points P1 and P2, which are clamp points of the wire harness, and a spherical surface is set at the point P5.
As shown in FIG. 16, the torus surface is a donut-shaped surface formed by rotating a circle around a certain point. In FIGS. 14 and 15, the circle is centered on fixed points P1 and P2 on the circumference. Is rotated to form a torus surface. The rotation direction of the circle is a direction (horizontal direction in FIG. 14) orthogonal to the direction of the clamp 51a (vertical direction in FIG. 14).
When considering the movable range of the wire harness, the wire harness is considered to move along the path along the torus surface and the spherical surface. I will go.
It should be noted that the radius of the circle constituting the torus surface and the radius of the circle constituting the spherical surface are determined based on the minimum bending radius of the wire harness calculated from the input calculation conditions.

The section between the fixed points P1 to P3 is a torus surface winding section in which the wire harness is bent along the torus surface 61, the fixed point P1 is a winding start point, and the point P3 is a winding end point.
A section between points P4 and P6 is a spherical winding section in which the wire harness is bent along the spherical surface 63, the point P4 is a winding start point, and the point P6 is a winding end point. Further, the point P5 is a pulling point described later.
A section between points P3 and P4 is a straight section connecting both points with a straight line.
The section between the fixed points P2 to P7 is a torus surface winding section where the wire harness bends along the torus surface 62, the fixed point P2 is a winding start point, and the point P7 is a winding end point. .
A section between points P7 to P6 is a straight section connecting both points with a straight line.

  Then, the path between the fixed points P1 to P3 and the fixed points P2 to P7 is approximated with an arc, the path between the points P4 to P6 is approximated with an arc, a broken line, or a curve, and the points P3 to P4 and The path from the point P7 to the point P6 is approximated by a straight line, the path from the fixed point P1 to the fixed point P2 is searched, and the path length is calculated.

The searched path length is compared with the length dimension of the input wire harness, and the point P5 (hereinafter referred to as “point 5” is referred to as “pull point 5”) so that both lengths are equal is the pull direction. Move to (the direction of the vector connecting the lattice point K and the pulling center point S), and determine the coordinates as the maximum pulling point where the lengths are equal.
By calculating this maximum tensile point for all lattice points K, the actual movable range of the wire harness can be obtained.

A flow when performing such a wire harness route search for a lattice point K will be described with reference to FIG.
First, the ellipse center point S shown in FIG. 13 is set to the section minimum value (0%), the grid point K is set to the section maximum point (100%), and the pull point P5 of the wire harness is set to the ellipse center point S and the grid point K. It can be moved between. Further, the initial position of the pull point P5 is set as an initial pull position, and is set to any one point between the ellipse center point S and the lattice point K. In this example, the initial pulling position is set to 75%. That is, the position is set such that the dimension of the grid point K to the tension point P5: the dimension of the tension point P5 to the dimension of the ellipse center point S = 1: 3. (S201, S202, S203)
After setting the initial pull position, the coordinates of the pull point P5 at the pull position are calculated (S204).

Next, a route search for the wire harness is performed (S205). In the route search, a route of the wire harness that passes through the fixed point P1, the pull point P5, and the fixed point P2 is searched, and a possible route is extracted.
As shown in FIG. 18, in the route search, first, a region on the fixed point P1 side and a region on the fixed point P2 side with the vector V as a boundary are divided into the fixed points P1 and P2 to the pulling point P4 for each region. Think of the route.

  First, for the region on the fixed point P1 side, an infinite plane PL1 is defined from a vector V1 representing the clamping direction and a vector V3 passing through the fixed point P1 and the pulling point P4, and a cross section of the torus surface 61 by the plane PL1. The circles C1 and C2 and the circle C3 that is a cross section of the spherical surface 63 by the plane PL1 are obtained, and the path from the fixed point P1 to the pull point P4 is examined.

Specifically, the route is examined by connecting the circle C1 and the circle C3 with a common tangent line and connecting the circle C2 and the circle C3 with a common tangent line.
First, as shown in FIG. 19, the route between the circle C1 and the circle C3 is examined.
Here, P1 is a fixed point, P5 is a pulling point, point P3a is the starting point of a common inscribed line L1a between the circle C1 and the circle C3, and point P3b is a common outer tangent L1b between the circle C1 and the circle C3. The point P3c is the start point of the common circumscribed line L1c between the circle C1 and the circle C3, the point P3d is the start point of the common inscribed line L1d between the circle C1 and the circle C3, and the point P4a is the circle C1 and the circle C1. C3 is the end point of the common inscribed line L1a, the point P4b is the end point of the common outer tangent line L1b of the circle C1 and the circle C3, the point P4c is the end point of the common outer tangent line L1c of the circle C1 and the circle C3, Point P4d is the end point of the common inscribed line L1d of circle C1 and circle C3.

  The vector V1 is a clamp direction at the fixed point P1, the vector V1a is a vector from the point P3a to the point P4a, the vector V1b is a vector from the point P3b to the point P4b, and the vector V1c is from the point P3c to the point P3c. Vector V1d is a vector from point P3d to point P4d, vector V4a is a tangent vector of circle C1 at point P3a, vector V4b is a tangent vector of circle C1 at point P3b, vector V4c is a tangent vector of the circle C1 at the point P3c, and vector V4d is a tangent vector of the circle C1 at the point P3d.

As shown in FIG. 20, the path from the circle C1 to the circle C3 includes a point P1 including a tangent L1a → a point P3a → a point P4a → a path P5 including a tangent L1b and a point P1 including a tangent L1b → a point P3b → point. The path b from P4b to the point P5, the point P1 including the tangent line L1c, the path c from the point P3c, the point P4c, and the point P5, and the path d from the point P1 including the tangent line L1d, the point P3d, the point P4d, and the point P5 are considered. It is done.
However, since the directions of the vector V1a and the vector V4a are opposite for the route a, the route from the point P1 to the point P5 is not established, and the direction of the vector V1b and the vector V4b is opposite for the route b. The route from point P1 to point P5 is not established.
On the other hand, for the path c, the vector V1c and the vector V4c have the same direction and are established as a path from the point P1 to the point P5, and for the path d, the vector V1d and the vector V4d have the same direction and the point P1 to the point P1. It is established as a route to P5.
That is, as shown in FIG. 21, in the section from the circle C1 to the circle C3, the route c and the route d can be established.

Similarly, as shown in FIG. 22, a route between a circle C2 and a circle C3 is examined.
Here, P1 is a fixed point, P5 is a pulling point, point P3e is a starting point of a common circumscribed line L1e between the circle C2 and the circle C3, and a point P3f is a common inscribed line L1f between the circle C2 and the circle C3. The point P3g is the start point of the common inscribed line L1g of the circle C2 and the circle C3, the point P3h is the start point of the common outer tangent line L1h of the circle C2 and the circle C3, and the point P4e is the circle C2 and the circle The end point of the common outer tangent line L1e with C3, the point P4f is the end point of the common inscribed line L1f between the circle C2 and the circle C3, the point P4g is the end point of the common inscribed line L1g between the circle C2 and the circle C3, A point P4h is an end point of a common outer tangent line L1h between the circle C2 and the circle C3.

  The vector V1 is the clamping direction at the fixed point P1, the vector V1e is a vector from the point P3e to the point P4e, the vector V1f is a vector from the point P3f to the point P4f, and the vector V1g is from the point P3g to the point P3g. Vector V1h is a vector from point P3h to point P4h, vector V4e is a tangent vector of circle C2 at point P3e, vector V4f is a tangent vector of circle C2 at point P3f, vector V4g is a tangent vector of the circle C2 at the point P3g, and the vector V4h is a tangent vector of the circle C2 at the point P3h.

As shown in FIG. 23, the path from the circle C2 to the circle C3 includes point P1 including the tangent L1e → point P3e → point P4e → path e of the point P5 and point P1 including the tangent L1f → point P3f → point. A path f from P4f → point P5, a path P from point P1 → point P3g → point P4g → point P5 including tangent L1g, and a path h from point P1 → point P3h → point P4h → point P5 including tangent L1h are considered. It is done.
For the path e, the directions of the vector V1e and the vector V4e are the same, and the path from the point P1 to the point P5 is established. For the path f, the directions of the vector V1f and the vector V4f are the same, and the points P1 to P5 Established as a route to
On the contrary, since the directions of the vector V1g and the vector V4g are opposite for the route g, the route from the point P1 to the point P5 is not established, and the direction of the vector V1h and the vector V4h is opposite for the route h. Therefore, the route from the point P1 to the point P5 is not established.
That is, as shown in FIG. 24, the route e and the route f can be established in the section from the circle C2 to the circle C3.

  Next, for the region on the fixed point P2 side shown in FIG. 18, the infinite plane PL2 is defined from the vector V2 representing the clamping direction and the vector V3, and the circle C4 and the circle which are cross sections of the torus surface 62 by the plane PL2 C5 is obtained, and the path from the fixed point P2 to the pull point P4 is examined using the circle C4, the circle C5, and the circle C3.

When the path between the circle C4 and the circle C3 is examined in the same manner as in the region on the fixed point P1 side, as shown in FIG. 25A, the point P5 → the point P6a → (L2a) → the point A path i passing through P7a → point P2 and a path j passing through point P5 → point P6b → (L2b) → point P7b → point P2 can be established as shown in FIG.
Further, when considering a route between the circle C5 and the circle C3, as shown in FIG. 26A, a route o passing through the point P5 → the point P6g → (L2g) → the point P7g → the point P2, and FIG. As shown in (b), the path P passing through the point P5 → the point P6h → (L2h) → the point P7h → the point P2 can be established.

As described above, after searching the path in the area on the fixed point P1 side and the area on the fixed point P2 side, respectively, the path c · d · e · f obtained in the area on the fixed point P1 side and the path on the fixed point P2 side It is determined whether the routes i, j, o, and p obtained in the area can be connected to each other (see FIG. 27).
In this case, the direction of the path vector at the tension point P5 in the path c · d · e · f in the area on the fixed point P1 side, and the tension point P5 in the path i · j · o · p in the area on the fixed point P2 side. Routes having the same direction as the vector of the routes can be connected.

In addition, the vector of the path | route c * f of the area | region by the side of the fixed point P1 has faced the right side of FIG. 27, and the vector of path | route d * e has faced the left side of FIG.
Further, the vector of the path j · o in the region on the fixed point P2 side faces the right side of FIG. 27, and the vector of the path i · p faces the left side of FIG.

When the connection between each of the routes c, d, e, and f on the fixed point P1 side and the routes c, d, e, and f on the fixed point P2 side is determined, the route c-route j, the route c-route o, and the route d- A combination of eight patterns of path i, path d-path p, path e-path i, path e-path p, path f-path j, and path f-path o can be connected, from fixed point P1 to fixed point P2. It is decided as a route to.
That is, the path c-j, the path c-o, the path d-i, the path d-p, the path e-i, the path ep, the path f-j, and the path f-o shown in FIGS. 8 routes are determined.
Then, the length of each determined route is calculated, and the route having the shortest length is provisionally determined to be the route from the fixed point P1 to the fixed point P2 of the wire harness at the lattice point K.
In this example, since the route length of the route f-j is the shortest, this route is provisionally determined to be the wire harness route.
The length of the path calculated here is the length when the pulling point P5 is located at the initial position.

As described above, after calculating the path length of the wire harness in the path search processing step (S205), the calculated path length is compared with the length dimension of the actual wire harness input at the input unit 1. (S206).
As shown in FIG. 30, when the path length is longer than the wire harness length as a result of comparison, the pull point P5 is moved from the initial position to the ellipse center point S side (S207). In this case, the pull point P5 is moved to an intermediate point Pm between the current pull position (initial position) and the ellipse center point S.
As a result of comparison, when the wire harness length is longer than the path length, the pull point P5 is moved from the initial position to the lattice point K side (S208). In this case, the pull point P5 is moved to an intermediate point Pn between the current pull position (initial position) and the lattice point K.
After moving the pull point P5 in steps S207 and S208, the coordinates of the pull point P5 after the movement are calculated again (S204), and the above-described route search is performed again (S205).
The moving direction of the pulling point P5 coincides with the pulling direction represented by the vector V at the lattice point K for both the movement toward the ellipse center point S and the movement toward the lattice point K.

And when the path length calculated again is compared with the length dimension of the actual wire harness inputted in the input unit 1 (S206), as a result of the comparison, the path length is longer than the wire harness length The pull point P5 is moved to the ellipse center point S side (S207). In this case, the pull point P5 is an intermediate point Pm between the current pull point P5 and the adjacent past pull point Pp on the ellipse center point S side, or an intermediate point Pm between the current pull point P5 and the ellipse center point S. Move.
For example, as shown in FIG. 31, when the pull point P5 is moved to the ellipse center point S side by the first movement ((1-a), (1-b) in FIG. 31).
), And move to an intermediate point Pm between the current pull point P5 and the ellipse center point S ((1-c) in FIG. 31).
Further, when the pull point P5 is moved to the lattice point K side by the first movement ((2-a) and (2-b) in FIG. 31), the current pull point P5 is adjacent to the ellipse center point S side. It moves to the intermediate point Pm with the past pull point Pp ((2-c) in FIG. 31).

On the contrary, the path length calculated again is compared with the actual wire harness length dimension input at the input unit 1 (S206). As a result of the comparison, the wire harness length is longer than the path length. If so, the pull point P5 is moved to the lattice point K side (S208). In this case, the pull point P5 is moved to an intermediate point Pn between the current pull point P5 and the adjacent past pull point Pp on the grid point K side, or to an intermediate point Pn between the current pull point P5 and the lattice point K. .
For example, as shown in FIG. 32, when the pulling point P5 is moved to the ellipse center point S side by the first movement ((3-a), (3-b) in FIG. 32), the current pulling point P5 and It moves to the intermediate point Pn with the adjacent past pull point Pp on the grid point K side ((3-c) in FIG. 32).
Further, when the pulling point P5 is moved to the lattice point K side by the first movement ((4-a) and (4-b) in FIG. 32), the intermediate point Pn between the current pulling point P5 and the lattice point K. ((4-c) in FIG. 32).

Thereafter, the process from step S204 to step S208 is repeated until the calculated path length and the actual wire harness length dimension are substantially the same dimension (for example, the difference between them is 0.1 mm or less). When the wire harness length becomes substantially the same size, the route search is terminated (S210), and the current route length (when the route length and the wire harness length become substantially the same size) is determined at the lattice point K. The maximum pull point Pmax is determined.
By calculating the maximum tensile point Pmax determined in this way for all lattice points K, the actual movable range of the wire harness can be calculated.
FIG. 33 shows an image of the actual movable range of the wire harness calculated in the movable range calculation processing step S2 of the wire harness between two fixed positions. This actual movable range is within the maximum elliptical rotation surface obtained by the maximum movable range calculation unit 22 (a range smaller than the range of the maximum elliptical rotation surface).

[Maximum Amplitude Correction Processing Step (S3)]
When the actual movable range of the wire harness is calculated in the wire harness movable range calculation process (S2), the maximum amplitude correction processing unit 27 performs a maximum amplitude amount correction process on the actual movable range.
As shown in FIG. 34, in the maximum amplitude correction process, first, a certain point in the actual movable range of the wire harness is determined as a correction center and determined (S31).
Thereafter, correction is performed by multiplying the magnitude of the vector from the obtained correction center to each vertex (pull point P5) constituting the actual movable range by the value of the amplitude correction table shown in FIG.

For example, when the exterior type of the wire harness is “new winding” and the clamp type is “round hole band”, the vector Vc from the correction center Oc to each tension point P5 shown in FIG. The position is corrected by multiplying the magnitude by the amplitude correction value “0.7324” determined from the amplitude correction table of FIG. 5 (see FIG. 35B).
FIG. 35 shows a state of correction in the vertical direction (a direction orthogonal to the line connecting the fixed points P1 and P2), but in the horizontal direction (a direction parallel to the line connecting the fixed points P1 and P2). The same correction is performed in step (b).

[Wire harness movable range surface output process (S4)]
Next, the output unit 3 performs output processing such as projecting the corrected movable range surface on a display device such as a monitor, or projecting it on a paper surface by a printer. The output image of the wire harness movable range surface output outputted by the output unit 3 is shown in FIG.

As described above, in determining the movable range of the wire harness fixed at the two fixed points P1 and P2, after creating the elliptical rotation surface centered on the fixed points P1 and P2 based on the length dimension of the wire harness The actual movable range of the wire harness can be calculated by obtaining a route by a polygonal line approximation method in consideration of characteristics such as the thickness, exterior type, and minimum bending radius of the wire harness.
This makes it possible to obtain and express the actual movable range of the wire harness with high accuracy and speed, and can easily determine whether or not the wire harness interferes with other parts regardless of the person. .

In particular, the route searched by the route calculation unit includes the route of the winding section on the torus surface 61, the spherical surface 63, and the torus surface 62 in consideration of the minimum bending radius of the wire harness, and the winding section of the torus surface 61 and the spherical surface 63. Since the path connecting the winding section of the spherical surface 63 and the path connecting the winding section of the spherical surface 63 and the winding section of the torus surface 62,
The actual bending state of the wire harness can be faithfully reproduced, and the path of the wire harness can be expressed with high accuracy.

  Further, in the present movable range calculating apparatus, the actual movable range of the wire harness calculated by the actual movable range calculating unit 26 is converted into the wire harness input from the input unit 1 and the fixed points P1 and P2 by the maximum amplitude correction processing unit 27. Because it corrects based on the clamp specifications of the wire harness, the movable range of the wire harness can be appropriately corrected according to the exterior specifications of the wire harness, the clamp specifications, etc., and the actual movable range of the wire harness must be determined with higher accuracy Is possible.

[Second Embodiment]
Next, the example which calculates | requires the movable range of the wire harness clamped by two fixed points and having a branch point in the middle part is demonstrated.
In this example, a wire harness 52 having branch points PR1 and PR2 as shown in FIG. 37 is considered. That is, the wire harness 52 is a wire rod having a branch part in the middle and having two or more ends locked by the locking part, and the first harness between the fixed point P11 and the branch point Pr1. 52a, a second harness 52b between the fixed point p12 and the branch point PR2, a third harness 52c between the fixed point P13 and the branch point PR1, a fourth harness 52d between the fixed point P14 and the branch point PR2. And a fifth harness 52e between the branch point PR1 and the branch point PR2. In this case, the branch portions of the wire harness 52 are the branch point PR1 and the branch point PR2, and the end portions locked by the lock portions are the fixed point P11, the fixed point P12, the fixed point P13, the fixed point P14, and the fixed point. P15.

Further, the linear range movable range calculation device in this example is basically configured by a computer, as in the case of the first embodiment. As shown in FIG. 38, the input unit 1 and the calculation unit 2 And an output unit 3 and a storage unit 4.
And a computer functions as a movable range calculation apparatus by running the program for movable range calculation of a filament material in the calculating part 2. FIG. The calculation unit 2 includes a branching unit movable range calculation processing unit 20 in addition to the units 21 to 26 of the calculation unit 2 in the first embodiment.

First, the general operation when the movable range of the wire harness is calculated by the movable range calculation device will be described.
As shown in FIG. 39, first, the input unit 1 performs input processing such as calculation conditions for calculating the movable range of the wire harness (S101). In this input process, the conditions for the wire harness that is the actual calculation target are input. This input is performed manually, for example. Next, the calculation process of the movable range of a branch point is performed by the calculating part 2 (S102), and the calculation process of the wire harness movable range between the fixed part-branch part and between two points between a branch part-branch part is carried out after that. (S103), and after performing the process of correcting the maximum amplitude calculated by the calculation process of the movable range (S104), the output unit 3 outputs the movable range surface of the wire harness (S105).

Next, each process will be described in detail.
[Calculation condition input process (S101)]
In step S101, processing similar to the input processing shown in FIG. 3 is performed.
However, as input calculation conditions, in addition to the conditions of the first embodiment, there are conditions such as the position / number of branch points, the number of harnesses coming out from the branch points, the lengths of the respective harnesses 52a to 52e, and the like. Entered.

[Branch point movable range calculation process (S102)]
As shown in FIG. 40, in the movable range calculation process of the branch point, first, a sphere having the radius of the length dimension of each of the input harnesses 52a to 52e is calculated around the fixed point and the center point of the branch point. (S301).
For example, as shown in FIG. 41, when calculating the movable range of the branch point PR1, the spherical surface C11 having the radius L1 of the first harness 52a with the fixed point P11 as the center, and the fixed point P13 as the center. Then, a spherical surface C13 having a radius of the length L3 of the third harness 52c and a spherical surface C15 having a radius of the length L5 of the fifth harness 52e around the center point of the branch point PR2 are calculated.

A range in which all the calculated spherical surfaces C11, C13, and C15 overlap, that is, a common portion of the multiple spherical surfaces C11, C13, and C15 is defined as a maximum movable range R11 of the branch point PR1 (hatched portion in FIG. 41). (S302).
Points are generated at predetermined intervals in the maximum movable range R11 and the vicinity thereof, and the coordinates of the points that fall within the maximum movable range are stored in the storage unit 4 (S303). These points that fall within the maximum movable range are each called a movable branch point, and a group of points that fall within the maximum movable range is hereinafter called a movable branch point group.
Note that the maximum movable range R12 is also obtained for the branch point PR2, similarly to the branch point PR1.

[Calculation processing of wire harness movable range between two points (S103)]
In this step, the calculation unit 2 performs a calculation process of the harness movable range at the fixed point-branch point and a calculation process of the harness movable range between the branch point-branch point.
First, it is determined whether the calculation pattern to be processed is a calculation process between a fixed point and a branch point or a calculation process between a branch point and a branch point (S103a).
As a result of the determination, if the calculation process is between the fixed point and the branch point, the harness movable range calculation process between the fixed point and the branch point is performed (S103b).

In this calculation process, an elliptical rotation plane that is the maximum movable range of the harness between the fixed point and the branch point is obtained.
As shown in FIG. 43, for example, when considering the first harness 52a, the direction connecting the fixed point P11 and the branch center point PR1 is the major axis direction of the obtained elliptical rotation surface, and the minor axis direction is the fixed point P11. A plane that includes the tangent vector is a direction orthogonal to the major axis direction. A line connecting the fixed point P11 and the branch center point PR1 is defined as a rotation center line OL.
Here, the branch center point PR1 is a point located at the center of a large number of movable branch point groups PR1a, PR1b... Existing in the maximum movable range R11.
Further, the plane including the tangent vector of the fixed point P11 is divided into a plurality of (N-divided) in the major axis direction, and the points where the dividing line and the rotation center line OL intersect are respectively the rotation center points OR1, OR2,. To do.

Then, on this plane, the fixed point P11 and the movable branch point PR1a are connected by a line segment having the length of the first harness 52a, and the line segment is set to the rotation center with the rotation center point OR1 as a vertex. Pulling in a direction away from the point OR1, a point K11 having the maximum distance from the rotation center point OR1 is obtained. Similarly, the fixed point P11 and the movable branch point PR1b are connected by a line segment having the length of the first harness 52a, and the line segment is separated from the rotation center point OR1 with the rotation center point OR1 as a vertex. By pulling in the direction, a point K12 having the maximum distance from the rotation center point OR1 is obtained.
In this way, the points K11, K12,... At a certain rotation center point OR1 are obtained for all the movable branch points PR1a, PR1b,..., And among the obtained points K11, K12,. A point K11 present at a distant position is defined as an elliptical lattice point at the rotation center point OR1.

Next, an elliptical lattice point K21 at the next rotation center point OR2 is obtained, and thereafter elliptical lattice points are obtained for all the rotation center points OR1, OR2,.
The elliptical rotation plane can be obtained by rotating these obtained elliptical lattice points K11, K21... Around the rotation center line OL.
FIG. 44 shows the obtained elliptical rotation plane, which is divided into N in the major axis direction and M in the rotation direction around the rotation center line OL, and a lattice point K is at each intersection of the division lines. Existing.

The route search of the first harness 52a between the fixed point P11 and the branch point PR1 at each lattice point K of the elliptical rotation surface thus obtained is performed, and the actual movable range of the first harness 52a is calculated.
The method of calculating the actual movable range of the first harness 52a by performing the route search of the first harness 52a between the fixed point P11 and the branch point PR1 is a wire harness movable range calculation process between two fixed points in the first embodiment. Since this is the same as the method of calculating the actual movable range in the process (step S2 in FIG. 2), the description is omitted.
Also, the second harness 52b between the fixed point P12 and the branch point PR2, the third harness 52c between the fixed point P13 and the branch point PR1, and the fourth harness 52d between the fixed point P14 and the branch point PR2. The actual movable range can be calculated in the same manner as the actual movable range of the first harness 52a.

If the result of determination in step S103a is calculation processing between a branch point and a branch point, a harness movable range calculation process between the branch point and the branch point is performed (S103c).
In this calculation process, an elliptical rotation surface that is the maximum movable range of the harness between the branch point and the branch point is obtained.
As shown in FIG. 45, for example, when considering the fifth harness 52e, the direction connecting the branch point center PR1 and the branch center point PR2 is the major axis direction of the obtained elliptical rotation surface, and the minor axis direction is the branch point. A plane that includes the tangent vector of the center PR1 is a direction orthogonal to the major axis direction. A line connecting the branch center point PR1 and the branch center point PR2 is defined as a rotation center line OL.
Here, the branch center point PR1 is a point located at the center of a large number of movable branch point groups PR1a, PR1b... Existing in the maximum movable range R11, and the branch center point PR2 is It is a point located in the center of many movable branch point groups PR2a, PR2b... Existing in the maximum movable range R12.
Further, the plane including the tangent vector of the branch center point PR1 is divided into a plurality of parts in the major axis direction (N division), and the points where the division line and the rotation center line OL intersect with each other are the rotation center points OR1, OR2,. And

Then, on this plane, a certain movable branch point PR1a and a certain movable branch point PR2a are connected by a line segment having the length of the fifth harness 52e, and the line segment is a vertex of the rotation center point OR1, Pulling in a direction away from the rotation center point OR1, a point K11 having the maximum distance from the rotation center point OR1 is obtained. Similarly, a movable branch point PR1a and a movable branch point PR2b are connected by a line segment having the length of the fifth harness 52e, and the line segment is separated from the rotation center point OR1 with the rotation center point OR1 as a vertex. By pulling in the direction, a point K12 having the maximum distance from the rotation center point OR1 is obtained.
In this way, the points K11, K12,... At a certain rotation center point OR1 are obtained for combinations of all the movable branch points PR1a, PR1b,... And the movable branch points PR2a, PR2b,. Of K12..., The point K11 that is located farthest from the rotation center point OR1 is the elliptical lattice point at the rotation center point OR1.

Next, an elliptical lattice point K21 at the next rotation center point OR2 is obtained, and thereafter elliptical lattice points are obtained for all the rotation center points OR1, OR2,.
The elliptical rotation plane can be obtained by rotating these obtained elliptical lattice points K11, K21... Around the rotation center line OL.
46 shows the obtained elliptical rotation surface, which is divided into N in the major axis direction and M in the rotation direction around the rotation center line OL, and a lattice point K is at each intersection of the division lines. Existing.

The route search of the fifth harness 52e between the branch point PR1 and the branch point PR2 at each lattice point K of the elliptical rotation surface thus obtained is performed, and the actual movable range of the fifth harness 52e is calculated.
The method of calculating the actual movable range of the fifth harness 52e by searching the route of the fifth harness 52e between the branch point PR1 and the branch point PR2 is a wire harness movable range calculation process between two fixed points in the first embodiment. Since this is the same as the method of calculating the actual movable range in the process (step S2 in FIG. 2), the description is omitted.

[Maximum Amplitude Correction Processing Step (S104)]
As described above, after the actual movable range of each of the harnesses 52a to 52e is calculated in the calculation process (S103) of the wire harness movable range between two points, the maximum amplitude correction processing unit 27 calculates the actual movable range. Thus, the maximum amplitude correction process is performed.
Since this maximum amplitude correction processing is performed in the same manner as the maximum amplitude correction processing in the first embodiment, description thereof is omitted.

[Wire harness movable range surface output processing (S105)]
Next, the output unit 3 performs output processing such as projecting the corrected movable range surface on a display device such as a monitor, or projecting it on a paper surface by a printer. The output image of the wire harness movable range surface output output by the output unit 3 is shown in FIG.

As described above, in determining the movable range of the wire harness having a branch point in the middle, an ellipse centered on the line connecting the fixed point and the branch point and between the branch point and the branch point based on the length dimension of the wire harness. After creating each rotating surface, consider the movable range of the branch point, and consider the characteristics of the wire harness by considering the thickness, exterior type, minimum bending radius, etc. The actual movable range can be calculated.
Thereby, even if the wire harness has a branch part in the middle, and the branch part is in a movable state within a certain range, the actual movable range of the wire harness is quickly obtained with high accuracy and expressed. Therefore, it is possible to easily determine whether or not the wire harness interferes with other parts regardless of the person.

Also in the case of this example, the route searched by the route calculation unit includes the route of the winding section on the torus surface 61, the spherical surface 63, and the torus surface 62 in consideration of the minimum bending radius of the wire harness, and the torus surface. 61, and a path connecting the winding section of the spherical surface 63 and a path connecting the winding section of the spherical surface 63 and the winding section of the torus surface 62.
The actual bending state of the wire harness can be faithfully reproduced, and the path of the wire harness can be expressed with high accuracy.

  Further, the actual movable range of the wire harness calculated by the actual movable range calculation unit 26 is clamped to the wire harness 52 and the fixed points P11, P12... Input from the input unit 1 by the maximum amplitude correction processing unit 27. Therefore, the movable range of the wire harness 52 can be appropriately corrected according to the exterior specifications, the clamp specifications, etc. of the wire harness 52, and the actual movable range of the wire harness 52 can be obtained with higher accuracy. Is possible.

It is a block diagram which shows the movable range calculation apparatus of the filament material concerning this invention. It is a figure which shows the flow of the movable range calculation method by the movable range calculation apparatus of a wire rod. It is a figure which shows the flow of input processing processes, such as calculation conditions. It is a figure which shows the minimum bending radius comparison table. It is a figure which shows an amplitude correction table | surface. It is a figure which shows the flow of a calculation processing process of the movable range of the wire harness between two points. It is a figure which shows the coordinate system which makes the origin the bisector of the line segment which connects the fixed point of a wire harness both ends. It is a figure which shows the ellipse which shows the maximum locus | trajectory range of the wire harness between two fixed points. It is an ellipse rotation surface formed by rotating the ellipse in FIG. 8, and is a diagram showing an ellipse rotation surface divided into lattices. It is a figure which shows a lattice point and its tension | pulling center point. It is a figure which shows the direction of the vector which goes to a tension | pulling center point from the lattice point when the lattice point is located near the center in the major axis direction of an ellipse rotation surface. It is a figure which shows the direction of the vector which goes to a tension | pulling center point from a lattice point in case the lattice point is located in the edge part in the major axis direction of an ellipse rotation surface. It is a figure which shows the path | route of the wire harness which considered the minimum bending radius. It is the figure which represented the path | route of the wire harness using the path | route along a torus surface and a spherical surface. It is a figure which shows the XX cross section in FIG. It is a figure which shows a torus surface. It is a figure which shows the flow of a route search process. It is a figure which shows the plane which performs the route search of a wire harness. It is a figure which shows the path | route of the wire harness in the area between the circle C1 and the circle C3. It is a figure explaining the path | route in FIG. It is a figure which shows the path | route established in the area between the circle C1 and the circle C3. It is a figure which shows the path | route of the wire harness in the area between the circle C2 and the circle C3. It is a figure explaining the path | route in FIG. It is a figure which shows the path | route established in the area between the circle C2 and the circle C3. It is a figure which shows the path | route established in the area between the circle C3 and the circle C4. It is a figure which shows the path | route established in the area between the circle C3 and the circle C5. It is a figure which examines the possibility of connection of the path | route on the plane PL1 side, and the path | route on the plane PL2 side. It is a figure which shows the path | route of the wire harness between two determined fixed points. It is a figure which shows the path | route of the wire harness between two determined fixed points. It is a figure which shows the moving direction of the pull point according to the comparison result of the calculated path | route length and the input wire harness length. It is a figure which shows a mode that a pull point is moved to the ellipse center point side by the 2nd movement. It is a figure which shows a mode that a pull point is moved to the lattice point side by the 2nd movement. It is a figure which shows the actual movable range of the calculated wire harness. It is a figure which shows the flow of a maximum amplitude correction process process. It is a figure which shows the mode of an amplitude correction process. It is a figure which shows the output image of the movable range surface of a wire harness. It is a figure which shows the wire harness which has a branch point in 2nd embodiment. It is a block diagram which shows the movable range calculation apparatus of the filament material in 2nd embodiment. It is a figure which shows the flow of the movable range calculation method by the movable range calculation apparatus of the filament material of 2nd embodiment. It is a figure which shows the flow of the movable range calculation process process of a branch point. It is a figure which shows a mode that the maximum movable range of a branch point is calculated. It is a figure which shows the maximum movable range of a branch point. It is a figure which shows a mode that the maximum movable range of the wire harness between a fixed point and a branch point is calculated. It is a figure which shows the ellipse rotation surface showing the maximum movable range of the wire harness between a fixed point-branching point. It is a figure which shows a mode that the maximum movable range of the wire harness between a branch point and a branch point is calculated. It is a figure which shows the ellipse rotation surface showing the maximum movable range of the wire harness between a branch point-branch point. It is a figure which shows the output image of the movable range surface of the wire harness which has a branch point.

K Lattice point P1, P2 Fixed point P5 Tensile point S Tensile center point 1 Input unit 2 Arithmetic unit 3 Output unit 4 Storage unit 51 Wire harness

Claims (10)

An apparatus for calculating a movable range of a wire rod locked by two locking portions,
Means for inputting information on the calculation condition of the movable range of the wire;
Means for calculating the maximum movable range surface of the line material based on the length information of the line material as input information;
Means for dividing the calculated maximum movable range surface into a plurality of grids;
Means for setting a center point corresponding to each grid point formed by grid division on a line connecting the two locking portions;
Of the input information, taking into account the length of the wire rod and the minimum bending radius, for each grid point, there is a point on the line connecting the grid point and the corresponding center point, and two locking parts Among the paths that are bent according to the minimum bending radius , the path length is substantially the same as the length of the input line material, and the grid points in the path and the corresponding points A route calculation means for searching for a route in which a certain point on the line connecting the center point to be located is closest to the lattice point;
Means for calculating the actual movable range of the line material using the points on the line connecting the lattice points and the corresponding center points in each route searched by the route calculating means;
An apparatus for calculating a movable range of a wire rod, comprising:   Each of the paths searched by the path calculation unit is on a plurality of virtual spherical surfaces passing through one locking part, the other locking part, or a certain point on a line connecting the lattice point and the corresponding center point. The moving range calculation device for a linear member according to claim 1, wherein the path is a path connecting the paths on the phantom spherical surface.   The linear material movable range calculating device further includes means for correcting the calculated actual movable range of the linear material based on the input linear material and the specification of the locking portion. The movable range calculation apparatus of the filament material of Claim 1 or Claim 2. An apparatus for calculating a movable range of a linear member having a branch part in the middle and having two or more ends locked by a locking part,
Means for inputting information on the calculation condition of the movable range of the wire;
A means for calculating the movable range of the bifurcation based on the length information of the wire rod as input information;
Based on the calculated movable range of the branch part and the length information of the line material as input information, the area from the fixed point to the branch part and / or the area from the branch part to the branch part in the wire material Means for respectively calculating the maximum movable range surface of
Means for dividing the calculated maximum movable range surface into a plurality of grids;
Means for setting a center point corresponding to each lattice point formed by lattice division on the line connecting the locking portion and the branching portion and / or the branching portion and the branching portion in each region of the wire rod;
Among the input information, for each grid point, taking into account the length of each region of the wire rod and the minimum bending radius, a certain point on the line connecting the grid point and the corresponding center point, and the locking part Of each region of the line material passing through the branch point or the branch point and the branch point, and among the paths bent according to the minimum bending radius , A route calculation unit that is substantially the same as the length and that searches for a route in which a certain point on a line connecting a lattice point in the route and a corresponding center point is located closest to the lattice point;
Means for calculating the actual movable range of the line material using the points on the line connecting the lattice points and the corresponding center points in each route searched by the route calculating means;
An apparatus for calculating a movable range of a wire rod, comprising:   The route searched by the route calculation unit is a locking portion or a branching portion on one end side of each region, a locking portion or a branching portion on the other end side of each region, or a lattice point and a corresponding center point, respectively. 5. The movable strip material according to claim 4, comprising a path on a plurality of virtual spherical surfaces passing through a point on a line connecting the two and a path connecting paths on the virtual spherical surface. Range calculation device. Wherein said interface member movable range calculation device, the actual movable range of the calculated interface member, a means for correcting, based on the specifications of the interface member and the locking portion input, and further comprising Claim | item 4 or the movable range calculation apparatus of the filament material of Claim 5. A method for calculating a movable range of a wire rod locked by two locking portions,
A step of inputting information related to the calculation condition of the movable range of the wire rod by an input means;
A step of calculating a maximum movable range surface of the wire rod based on the length information of the wire rod material which is input information by the maximum movable range calculating means;
A step of dividing the calculated maximum movable range surface into a plurality of lattices by the lattice dividing means;
A step of setting a center point corresponding to each grid point formed by grid division on a line connecting the two locking portions by the center point setting means;
A certain point on the line connecting the lattice point and the corresponding center point, for each lattice point, taking into account the length of the wire rod and the minimum bending radius among the information input by the path calculation means, and 2 It is a path of the line material that passes through the locking portion of the point, and among the paths bent according to the minimum bending radius , the path length is substantially the same as the length of the input line material, and in the path Means for searching for a route where a point on a line connecting a lattice point and a corresponding center point is closest to the lattice point;
A step of calculating the actual movable range of the line material by using the points on the line connecting the lattice points and the corresponding center points in each route searched by the route calculating unit by the actual movable range calculating unit;
A method for calculating a movable range of a wire rod, comprising: A method of calculating a movable range of a linear member having a branch part in the middle and having two or more ends locked by a locking part,
A step of inputting information on the calculation condition of the movable range of the wire material by an input means;
The step of calculating the movable range of the branch portion based on the length information of the line material that is input information by the branch portion movable range calculation means,
Based on the calculated movable range of the branch portion and the length information of the linear member, which is input information, by the maximum movable range calculation means, the region from the fixed point to the branch portion and / or the branch in the linear member Calculating the maximum movable range surface of the area from the part to the branch part,
A step of dividing the calculated maximum movable range surface into a plurality of lattices by the lattice dividing means;
The center point setting means sets the center point corresponding to each grid point formed by grid division on the line connecting the locking part and the branch part and / or the branch part and the branch part in each region of the wire rod. And a process of
A point on the line connecting the lattice point and the corresponding center point for each lattice point, taking into account the length and minimum bending radius of each region of the line material, among the information input by the route calculation means And a path of each region of the line material passing through the locking portion and the branch point or the branch point and the branch point, and the path length of the path bent according to the minimum bending radius is input. Searching for a path that is substantially the same as the length of each path of the material, and that a point on the line connecting the grid point in the path and the corresponding center point is located closest to the grid point;
A step of calculating the actual movable range of the line material by using the points on the line connecting the lattice points and the corresponding center points in each route searched by the route calculating unit by the actual movable range calculating unit;
A method for calculating a movable range of a wire rod, comprising: A program for calculating a movable range of a wire rod locked by two locking portions,
A program for calculating a movable range of a wire rod, characterized by causing a computer to sequentially execute the following procedures.
1) Procedure for calculating the maximum movable range surface of the linear material based on the input length information of the linear material 2) Procedure for dividing the calculated maximum movable range surface into a plurality of grids 3) Relation between two points Procedure 4) to set the center point corresponding to each grid point formed by grid division on the line connecting the stop part 4) Among the input information, while considering the length of the wire rod and the minimum bending radius, For each grid point, a path of the line material passing through a certain point on the line connecting the grid point and the corresponding center point, and the two locking portions, out of the paths bent according to the minimum bending radius The path length is approximately the same as the length of the input line material, and a path on the line connecting the grid point and the corresponding center point in the path is located closest to the grid point. Retrieval procedure 5) Lattice points and corresponding points in each retrieved route Procedure using the point on the line, and calculates the actual moving range of the wire member connecting the center point and that A program for calculating a movable range of a linear member having a branch part in the middle and having two or more ends locked by a locking part,
A program for calculating a movable range of a linear material, which causes a computer to sequentially execute the following procedures.
1) A procedure for calculating the movable range of the bifurcation based on the length information of the input wire material,
2) Based on the calculated movable range of the branch part and the length information of the line material as input information, the region from the fixed point to the branch part and / or from the branch part to the branch part in the wire material 3) A procedure for calculating the maximum movable range surface of each region 3) A procedure for dividing the calculated maximum movable range surface into a plurality of lattices 4) A locking portion and a branch portion and / or a branch portion and a branch in each region of the wire rod Procedure for setting the center point corresponding to each grid point formed by grid division on the line connecting the sections 5) Considering the length and minimum bending radius of each region of the line material among the input information while, for each grid point, the path of each region of the wire member through a point in the line connecting the center point and a corresponding grid point, the the locking portion and the branch point or branch point and branch point met Te, of the bent route according to the minimum bend radius The path length is substantially the same as the length of each path of the input line material, and a certain point on the line connecting the grid point and the corresponding center point in the path is located closest to the grid point Procedure for searching for a route 6) Procedure for calculating the actual movable range of the line material using the points on the line connecting the lattice point and the corresponding center point in each searched route.

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