| 摘要 |
<p>The fixture consists of a flat metal bar (1) fixed to a rafter with a part projecting beyond the rafter. The part of the first flat section (1) projecting beyond the rafter has two notches in the two opposite side edges. The second part (4) of the fixture consists of a bracket (6) open at the bottom, with a base (7) and two sides (8) which are spaced apart and fit into the notches. The sides (8) are each curved inwards on a plane parallel to one side of the first section (1). The notches can be semicircular or rectangular in shape. The distance between the sides (8) of the bracket corresponds to the part (9) on the first section (1) between the notches. The sides (8) are inserted into the notches so that they cannot be released except by simultaneous pivoting and lifting.</p> |
