| 摘要 |
PURPOSE: An under frame of a train and a producing method thereof are provided to reduce a producing cost by minimizing component and to improve rigidity. CONSTITUTION: An under frame of a train comprises a bracket combined to a floor portion of a body(2); a T-slot attaching a chair on an under frame; second base plates(22,22') formed around a first base plate(21); a tooth combining hole(23) protruded on a connecting portion of the base plates; a tooth combining piece(24) protruded on a sidewall of the second base plate for combining to a sol bar; a connector mounting member combined to a lower portion of the body; and a bolt hole formed on the sidewall. Thereby, the under frame of the train reduces a producing cost by attaching the connector mounting member on the lower portion of the body. Moreover, the under frame of the train improves rigidity by preventing damage caused by heat.
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