| 摘要 |
<p>Anchor hooks (10) fit around opposite free edges of the horizontal girder flange (4), the anchor halves (6) being of sheet-metal and each with a horizontal edge (11) at right angles to the girder axis and bearing against the flange underside. The vertical edge is bent at right angles to form a rib (9), by which it is secured to that of the other half. In plan view, each half is U-shaped, having a second plate (8) parallel to the first (7) and also with a hook fitting around the girder flange. Each half can be in one piece and of sheet-metal bent into shape. The ribs of the halves can be drilled for fixing devices, and a locking lug can be bent outwards from each, engaging in a mating recess in the other rib. The lug can be of hammerhead shape, inserted in a slot in the recess from which portions are bent outwards at the sides, the hammerhead edges engaging behind them.</p> |
