Removable fall arrest reel-unwinder rod restraint system for access shafts

摘要

The invention relates to a personal restraint system for a downhill access shaft accessible from above through a manhole (2), the system comprising a removable retaining rod (1) and a rod installation base (20), the rod (1) being elongated longitudinally between two ends, a lower end (15) and an upper end (16), the upper end (16) of the rod (1) comprising an anchoring member (11, 12), the installation base (20) being fixed to a wall of the well, the lower end (15) of the rod capable of being removably immobilized in the installation base (20), the system being configured so that, when the rod (1) is immobilized in the installation base (20), the rod (1) either erected upwards and the upper end (16) of the rod or at a determined height above the level of the manhole (2). According to the invention, the system comprises a winching device (31, 50) with a cable (34), the free end of the cable (34) comprising an attachment device (39), said winching device (31, 50 ) being carried by a rod (30) removably attached to the upper end (16) of the rod (1). The winching device can be a fall arrest reel-unwinder (31) or a manual winch (50). Figure 2