| 主权项 |
1. A design assistance device for a steering device, the design assistance device assisting a design of an intermediate shaft module including a tube yoke and a shaft yoke connected to the tube yoke, the design assistance device for the steering device comprising:
a storage unit which stores at least
joint length information having a joint length as a distance between a first connection reference point where the intermediate shaft module is connected to a column yoke and a second connection reference point where the intermediate shaft module is connected to a pinion side yoke anda fitting length specification as a condition of a fitting length where the tube yoke and the shaft yoke are connected to each other,tube yoke information of the tube yokes, andshaft yoke information of the shaft yokes; a candidate component extraction unit which extracts a candidate tube yoke having a length less than the joint length and extracts a candidate shaft yoke having a length less than the joint length, based on the joint length information, the shaft yoke information, and the tube yoke information; a calculation unit which calculates, according to a calculation instruction, the fitting length of a candidate combination of the candidate tube yoke and the candidate shaft yoke that are disposed between the first connection reference point and the second connection reference point; and a display unit, wherein, when the fitting length of the candidate combination including the candidate tube yoke and the candidate shaft yoke that fits inside of the candidate tube yoke satisfies the fitting length specification, the candidate combination is stored in the storage unit, and the display unit displays an index, the candidate tube yoke includes:
a tube yoke fitting leading end that is a leading point of a tube yoke fitting portion; anda tube yoke fitting tail end that is a tail point of the tube yoke fitting portion at an inner peripheral side of a cylinder of the tube yoke, the candidate shaft yoke includes:a shaft yoke fitting leading end that is a leading point of a shaft yoke fitting portion; anda shaft yoke fitting tail end that is a tail point of the shaft yoke fitting portion, andthe display unit displays the index when the fining length of the candidate combination satisfies the fitting length specification whether positions of the tube yoke fitting leading end and the shaft yoke fitting leading end match each other or not. |
