| 摘要 |
The angular joint of the invention comprises a slide base portion ( 1 ) and a sheet metal mobile portion ( 2 ) superimposed thereupon, the sheet metal portion ( 2 ) including upwardly extending legs ( 2 e) with indenting edges ( 2 g), a bolt ( 3 ) being employed in the tightening process of the joint, wherein after the joint has been inserted into the hollow profile members being brought together for connection, the bolt ( 3 ) acts so as to exert an upwardly raising force onto the sheet metal mobile portion ( 2 ), whilst maintaining base portion ( 1 ) at a fixed position, and subsequently leading the sharp indenting edges ( 2 g) of the sheet metal portion ( 1 ) to producing an indentation effect into the walls of the corresponding chambers ( 13 a, 13 b) of the hollow profiles being angularly connected with the joint, as the joint is being tightened, thereby resulting in a robust, self aligned connection of the hollow profile members.
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