Fire escape – ladder – or scaffold – Platform with elevating or lowering means – Suspended
Patent
1985-10-03
1987-08-25
Machado, Reinaldo P.
Fire escape, ladder, or scaffold
Platform with elevating or lowering means
Suspended
182187, 182 7, 182206, 182133, E04G 310
Patent
active
046886575
ABSTRACT:
A portable elevating device constructed according to the preferred embodiment of the present invention is shown as including a winch frame for mounting a winch and a harness assembly secured to the winch frame for supporting an operator. In the preferred embodiment, the free end of the cable of the winch is releasably secured at a vertical position by a C-shaped anchor. The anchor may be positioned at the vertical position by a telescoping pole releasably secured thereto. After the free end of the cable is secured to the vertical position, the operator located in the harness assembly can elevate or lower himself by rolling or unrolling the cable on the winch. The winch frame in its most preferred form includes a rope gripping member for gripping a rope secured to a vertical position and moveable between a non-engaging position and an engaging position to thus operate as a safety line if the winch, cable, or anchor should fail. In its most preferred embodiment, the winch includes a member for stopping rotation of the winch if it reaches a rotational speed limit. In its most preferred embodiment, the winch stopping member includes pivotally mounted members which are rotatable with the winch and have an increasing radial extent with increasing rotational speed due to centrifugal forces. The components of the elevating device can be collapsed and interconnected as a single unit into a transport mode for carrying on the back of the operator.
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Chin-Shue Alvin
Machado Reinaldo P.
LandOfFree
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