| 摘要 |
The device comprises means for attaching an operator to a fixed element of the construction work, said means including a harness or safety belt and a snap ring; an anchoring element (2) suitable for insertion into a concrete mass (3) and becoming integral with said mass after setting, which connects the device to said fixed element of the construction work, and a mast (4) releasably connected by its lower end to said anchoring element and attached to a rope (5) by its upper end, said rope being connected to the above-mentioned attaching means by its lower end (7) and rotatable relative to the vertical axis (8) of the mast. Once the concrete has set, the operator is firmly held and can freely move within an essentially circular field of action (24) about said vertical axis. The invention can be used to provide safety during horizontal formwork operations.
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