Yazaki Corporation

Masayoshi Sawai

Kokichi Sugihara

Akiko Nakano

Shinji Tsuchiya

Kohki Nagakura

Kouki Nagakura

Yousuke Sugioka

Yoshihiro Inoue

Tomohiro Yoneyama

An object of the invention is to resolve the inconvenience of separately handling a nut member and a bolt member and improve workability in fastening and fixing a part. There is adopted a part fitted with a fastening member including: one fastening member that includes a high-rigidity screw portion, a low-rigidity crushable portion, and a locking portion provided against a member to which a part is attached; another fastening member that includes a screw portion tightly screwed with the high-rigidity screw portion to be able to crush the crushable portion; and a part that is temporarily fastened and held between the one fastening member and the other fastening member while the two screw portions are loosely screwed together.

Part fitted with fastening member, and method of attaching the same

The present invention aims to improve accuracy of a planar manufacturing drawing used to instruct manufacture of a three-dimensional structure in a planar form. According to path plan information is acquired by a path plan information acquisition unitand manufacturing requirement information is acquired by a manufacturing requirement information acquisition unit, a layout configuration production unitproduces a layout configuration model in which the three-dimensional structure is laid out in a planar manner based on a manufacture layout and distortion of the wire harness. Then, a simulation unitsimulates a transformation from the layout configuration model to the mounting configuration model with which the three-dimensional structure is mounted to a mount object. Then, an evaluation item evaluating unitevaluates a predetermined evaluation item by comparing the simulation result and the three-dimensional structure indicated by the path plan information. Then, an evaluation result information output unitoutputs the evaluation result to support path designing of the three-dimensional structure and/or production of the planar manufacturing drawing.

Planar manufacturing drawing production support device, planar manufacturing drawing production support method, planar manufacturing drawing production support program and branch angle design support device

A water stopping configuration of linear members, includes a liquid water stopping material which is cured after the liquid water stopping material is penetrated into interstices between the linear members bundled together. The water stopping material is a magnetic fluid. The water stopping material is cured in a condition that a magnetic field is applied to the water stopping material from the outside of a covering member which covers an outer periphery of bundled portions of the linear members having the water stopping material penetrated therein so as to gather the water stopping material at a predetermined portion within the covering member.

Water stopping configuration of linear members and method of water stopping the linear members

A method of supporting an optimum wiring design of a linear structure, includes steps of providing a finite element model of both of the linear structure and a support member which supports the linear structure, the finite element model being formed as an elastic body having a plurality of combined beam elements which retain linearity, setting physical properties and restriction conditions of the linear structure and the support member to the finite element model, calculating a predictive shape of the finite element model which is in a physically balanced condition based on the physical properties and the restriction conditions, and outputting a calculation result of the calculation process.

Method of supporting wiring design, supporting apparatus using the method, and computer-readable recording medium

A calculation method includes the steps of: setting a moving condition about the respective wire materials; regarding cross-sectional shapes of the wire materials as a plurality of circles; assuming a comprehensive circle containing the circles; defining a target circle which is slightly smaller than the comprehensive circle; searching for a destination position into which the circles excluding an insertion-tried circle is moved as farther as possible from the insertion-tried circle; inserting the insertion-tried circle into a space within the target circle; defining a new target circle that is slightly smaller than the present target circle when all the insertion-tried circle is inserted in the target circle, and returning to the searching step; repetitively performing the defining step, the searching step, the insertion step, and defining step of the new target circle for reducing the comprehensive circle; and determining information about positions of the comprehensive circle and the circles.

Calculation method for packing wire materials, calculation apparatus using the same and computer-readable recording medium

A method which can correctly calculate a twist angle in a wire harness, an apparatus for the method, and a program for the method are provided. In the invention, a shape obtained by deforming a reference shape model and superimposing the deformed reference shape model on a deformed shape model is calculated with using a finite element method, while referring physical properties of a wire-like structure. In accordance with the superimposition, also a reference axis of the reference shape model is rotated. An angle formed by the reference axis at the timing when the superimposition is ended, and a clamp axis of the deformed shape model and/or a virtual clamp axis is calculated as a twist angle.

Method of calculating twist angle in wire-like structure, apparatus for the same, and program for the same

To provide an effective calculation method and an apparatus therefor for obtaining an outside diameter of a wire packing by bundling and packing a plurality of wires into the smallest possible circular shape. The outside diameter of a wire harness surrounding a plurality of wires is efficiently obtained by repeatedly calculating an operation in which the layout of the plurality of wires making up the wire harness is changed such that, by using a computer, the wires are moved as distantly as possible from the wire protruding from an including circle, and the protruding wire is inserted in a space thus created. In particular, by adopting the concept of a circular Voronoi diagram, it becomes possible to obtain the outside diameter of the wire harness extremely simply and in a short time.

Method of calculating a wire packing diameter, apparatus therefor, and program therefor

A calculating apparatus includes a finite element model creating unit that creates a finite element model of the wire structure, a setting unit that sets physical properties, restriction conditions and loads of the wire structure to the finite element model, a predictive shape calculating unit that calculates a predictive shape of the finite element model in a physically balanced condition, an outputting unit that outputs the predictive shape of the finite element model, a load calculating unit that calculates the loads which are applied to the respective joints of the finite element model, a displacing unit that displaces a predetermined control point on the finite element model. The predictive shape calculating unit calculates the predictive shape of the finite element model in which the control point is displaced, based on the loads applied to the finite element model prior to the displacement of the control point.

Method of calculating predictive shape of wire structure, calculation apparatus, and computer-readable recording medium

In a rotation angle calculating method of a wire harness, a rotation angle of the wire harness is calculated at an arbitrary measuring point of the wire harness when the wire harness is deformed from a first shape to a second shape while a fixed point of the wire harness is fixed. The method include the steps of: setting intermediate points between the fixed point and the measuring point of the wire harness in the second shape; setting vectors at the nodes of the wire harness in the second shape as node vectors respectively; calculating angles, each of which has a rotation direction, wherein each of the angles is defined between the vectors at the adjoining nodes; and adding the angles to each other so as to calculate a rotation angle having a rotation direction at the measuring point.

Rotation angle calculating method of wire harness, rotation angle calculating apparatus, and computer-readable recording medium

A supporting apparatus includes a first setting unit which sets an initial shape of the linear structure, a providing unit which provides a finite element model of the linear structure, a second setting unit which sets a physical property and restriction conditions to the finite element model, a calculating unit which calculates a predictive shape of the finite element model which is in a physically balanced condition based on the physical property and the restriction conditions, and an outputting unit which outputs a calculation result of the calculating process of the predictive shape. The calculating unit calculates a first predictive shape in which a forced displacement destination of a first control point on the finite element model is set as the restriction conditions, and calculates a second predictive shape in which a forced displacement destination of a second control point on the finite element model is set as the restriction conditions.

A calculation method for packing a plurality of wires constituting a wire harness comprises the steps of: removing a first circle from a plurality of circles; forming a primary inclusive circle as small as possible in which a plurality of second circles are included in the primary inclusive circle so as not to be overlapped with each other; calculating first position information regarding a position of the primary inclusive circle and the second circles included in the primary inclusive circle; forming a final inclusive circle as small as possible in which the first circle is arranged in the primary inclusive circle while the second circles are fixed in the primary inclusive circle in accordance with the position information such that the first circle and the second circles are not overlapped with each other; calculating and outputting second position information regarding a position of the final inclusive circle.

Calculation method for packing a plurality of wires and calculation apparatus using the same

A supporting apparatus for supporting an optimum wiring design of a linear structure includes a providing unit which provides a finite element model of the linear structure, the finite element model being formed as an elastic body having a plurality of combined beam elements which retain linearity, a setting unit which sets a physical property and restriction conditions of the linear structure to the finite element model, a first calculating unit which calculates a predictive shape of the finite element model which is in a physically balanced condition based on the physical property and the restriction conditions; a second calculating unit which calculates a reaction at a predetermined evaluation point of the predictive shape, a comparing unit which compares the reaction with a predetermined threshold value, and an outputting unit which outputs a comparison result by the comparing unit. The first calculating unit calculates the predictive shape by setting a forced displacement destination of a predetermined control point of the linear structure as one of the restriction conditions, to the finite element model.

A wire harness constituted by bundling a plurality of pieces of line streak members by a predetermined exterior member is regarded to be an elastic body having a circular shape and coupled with a plurality of beam elements maintaining a linearity to form a model and a shape of the wire harness is predicted by utilizing a finite element method. When an end portion of the wire harness is displaced by an input apparatus, a shapephysically in equilibrium is automatically calculated by the finite element method and is drawn again. That is, the shape physically in equilibrium is automatically calculated and drawn by following a shape design by well-known operation by CAD at a background thereof.

Method of predicting shape of wire-like structure, its apparatus and its program

In a calculating apparatus for calculating a predictive shape of a wire structure using a finite element model, a predictive shape of the finite element model which is in a physically balanced condition based on physical properties and restriction conditions is calculated. When it is determined that the predictive shape of the finite element model crosses an obstacle model, the control point of the finite element model is returned to a position corresponding to a position immediately before the crossing of the joint with the obstacle model and a crossing joint which is the joint crossing with the obstacle model is bound to a contact point of the finite element model with the obstacle model. The predictive shape is output when the control point is returned to a position at the time of crossing of the finite element model with the obstacle while maintaining the binding.

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Kosai, Japan

Masayoshi Sawai