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Suspended work platform with an integrated rescue system and a method for rescuing a worker

  • US 20080087497A1
  • Filed: 10/13/2006
  • Published: 04/17/2008
  • Est. Priority Date: 10/13/2006
  • Status: Abandoned Application
First Claim
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1. A suspended work platform with an integrated rescue system (50) for rescuing a worker on a work platform (100) suspended from a tie-off point (20) on a structure (10) wherein the tie-off point (20) is above the work platform (100) and a fall surface (30) is below the work platform (100), comprising:

  • (A) a platform rope (300) having a maximum extension length;

    (B) a work hoist (200) having a work hoist motor (210), a work hoist traction mechanism (230) designed to cooperate with the platform rope (300), and a work hoist gear box (220) for transferring power from the work hoist motor (210) to the work hoist traction mechanism (230), wherein the work hoist (200) is attached to the work platform (100);

    (C) a work hoist control system (700) having a worker input device (710) accessible from the work platform (100), wherein the worker input device (710) is in operative communication with the work hoist (200), the worker input device (710), and the worker input device (710) controls the work hoist motor (210) such that the work hoist (200) ascends and descends along the platform rope (300); and

    (D) a rescue device (400) having a rescue traction mechanism (430) designed to cooperate with the platform rope (300), wherein the rescue device (400) is attached to the tie-off point (20), the rescue device (400) is operated at the tie-off point (20), the platform rope (300) extends downward from the rescue device (400) to suspend the work platform (100) by the work hoist (200), and the rescue device (400) controllably lowers the platform rope (300) and the work platform (100) to near the fall surface (30) before the maximum extension length of the platform rope (300) is reached.

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