Rope Rescue Pulley Systems Diagrams

A few simple pulley systems are most frequently used.

Rope rescue pulley systems diagrams. Any ultimate benefit from the rescue maneuver hinges upon pulleys systems for rescue industrial rope. Simple compound and complex. Pulley systems are used to provide us with a mechanical advantage where the amount of input effort is multiplied to exert greater forces on a load. The obvious challenge of importance to the rescue attempt is the need to get the victim down.

In a simple system one rope is routed between pulleys on the anchor and load and all of the pulleys that move i e the traveling pulleys do so at the same speed and in the same direction as the load. 3 1 system the 3 1 is the classic mechanical advantage system used by rescuers. It requires less rope than a non piggybacked 2 1 system is reasonably easy to rig is easy to add a progress capture device provides an appropriate amount of mechanical advantage to raise one or two people and with a few tweaks it can be converted into a simple 5 1 system. Mechanical advantage systems can be either simple compound or complex.

The most common is a 3 1 mechanical advantage sometimes called a z rig because when rigged the rope looks like a z.