| 摘要 |
Safety installation for the edge of a roof consisting of a number of vertical uprights, with horizontal fencing/railing, to be fitted close to the edge of the roof, for example in a gutter, each upright being provided with an arm that extends downwards therefrom in the use position and is provided with a support point. There is an auxiliary arm that is provided with an engagement surface that engages underneath the edge of the roof. This auxiliary arm can be fixed to the arm such that it can hinge and locking means can be present for securing the non-locking position to facilitate dismantling.
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