| 摘要 |
A fall-arrest safety harness arrangement comprises a chassis 6 anchored by a chain to a fixed point 4 and a winding mechanism 9 mounted on the chassis. A tether 7 extends from the winding mechanism to a harness worn by a user 5. The winding mechanism is braked when a user has not fallen and is operated manually or by a motor or controlled by a brake to raise or lower the user as required after a fall. In one construction there may be a fixed-length restraint connected to the harness of the user in addition to the connection of the tether 7. The tether winding mechanism may include a load limiting lock mechanism and may include an inertia reel device. |
