| 摘要 |
PURPOSE: An upper supporting structure of a timber leg is provided to enable a user to easily install the upper supporting structure of the timber leg and to enable the user to strongly install the upper supporting structure without a welding work. CONSTITUTION: An upper supporting structure of a timber leg comprises: a section steel beam(1) which is continuously arranged and forms the upper supporting structure; and a width supporting board(2) which is connected to an support end of the upper part of the section steel beam. A connection head having inserting recess is formed on both ends of the width supporting board. The connection head of both ends is connected to a width main body.
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