| 摘要 |
A right-angled triangular shoring or scaffolding frame unit having its acute apices blunted at right angles to the adjacent side and having multiple holes therein adapted for bolt assembly in a plurality of positions. Said triangular units preferably are made from aluminum and used in identical pairs assembled symmetrically to brace a pair of vertical load-bearing aluminum legs, said triangular units having adjacent legs of different lengths whereby the widths of the assembled frames can be varied by bolting the pair(s) of triangular units to each other edge-to-edge between the vertical legs with either the shorter, or alternatively the longer, of the adjacent legs oriented horizontally.
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