| 摘要 |
PURPOSE: A curved line which enables a user to simply perform design, configuration and operation is provided to increase comfort when passing through the curved line. CONSTITUTION: A curved line which enables a user to simply perform design comprises a first part(18), a second part(20) and a third part(22). The first part constitutes a frog finishing in a final radius R(R= constant). The second part follows the first part. The third part starts with the radius and finishes in the radius of curvature. The third part to the first has respective length in order to pass through the curved portion at a maximum permissible passage rate. The curved portion locates between a main track and a branched track(10).
|
