Fire escape – ladder – or scaffold – Ladder and platform – Platform with ladder as support
Patent
1990-07-20
1991-04-09
Machado, Reinaldo P.
Fire escape, ladder, or scaffold
Ladder and platform
Platform with ladder as support
248238, E04C 716
Patent
active
050056689
ABSTRACT:
A substantially one-piece ladder attachment is disclosed. The attachment provides a secure, laterally well-supported platform on which a worker would stand. The invention is particularly useful for an extension ladder, especially one with circular rungs. The attachment of the invention comprises a platform having a single, hollow, vertical support member projecting from one edge thereof. The vertical support is centrally disposed on the edge on which it is located. The vertical support angularly projects from the platform and is connected to an arcuate, horizontally disposed, transversely mounted upper bracket. The upper bracket is intended to engage the rung of a ladder to impart lateral stability to the platform. The attachment further includes a lower, horizontally-disposed arcuate bracket which is securely mounted to the same edge of the platform as the vertical support. The lower bracket is intended to cooperate with a second rung of a ladder to provide lateral, as well as, vertical stability to said platform. In a preferred practice of this invention, grip means are adhered to the top of the platform. In a further preferred practice of the invention, a rung security means, such as a key, is mounted in said upper bracket and through the support member to secure the attachment to the ladder.
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