| 摘要 |
A rescue system includes a hoist including a backplate; a rope drum mounted on the backplate for rotation about an axis extending substantially perpendicular to the backplate, the rope drum having a rope engaging surface located between a pair of circular end flanges; a rope guide fixed to the backplate, the rope guide formed by a pair of elongated laterally spaced legs connected at opposite ends of the rope guide to define therebetween at least one rope slot, the rope guide having an arcuate shape conforming substantially to the circular end flanges of the rope drum; a generally T-shaped rope lock bar mounted on a forward end of the rope guide, the lock bar including a stem and a cross bar, the cross bar extending substantially parallel to an axis of rotation of the rope drum; and a lock mounted on the backplate for movement between engaged and disengaged positions, the lock including a cam which, when in the engaged position, permits movement of a rope in one direction but not in the opposite direction.
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