| 摘要 |
<p>The fastener for joining two profiles with longitudinal slots at right angles comprises a bolt (32) which is inserted into the slot on one profile so that it is parallel to it and its end emerges into the slot in the profile which is at right angles to it. The bolt is anchored into place by a plug (24) with a central bore (26) into which is inserted a tapering tubular sleeve (28). This also has a central bore (30) The bolt is screwed into this so that its head (40) presses on the top (58) of the sleeve so that the plug is widened and presses against the walls of the groove.</p> |
