Brace fastener for a folding ladder

Details Brace fastener for a folding ladder Brace fastener for a folding ladder

1991-08-30

1992-11-17

Chotkowski, Karen J.

Fire escape, ladder, or scaffold

Ladder with pivoted prop

Pivoted to top-step cleat

182159, E06C 700

Patent

active

051635330

ABSTRACT:
A brace fastener for holding a step brace in position when the folding ladder in which said step brace is fastened is set up into shape, comprising a spring plate in an inverted T shape attached to either sidepiece of said folding ladder to hold a hook member in place and a control member movably hooked in said hook member for performing a second-order lever. Attaching said control member to the outer surface of the sidepiece of the folding ladder permits the hook member to be moved into a locking position to lock the step brace in position when the folding ladder is set up. Rotating the control member downwards causes the hook member to disconnect from the step brace so that the folding ladder can be collapsed.

REFERENCES:
patent: 2670120 (1954-02-01), Sanguineti
patent: 2727671 (1955-12-01), Ollerhead
patent: 3084760 (1963-04-01), Lamberti
patent: 4549632 (1985-10-01), Inoue
patent: 4815564 (1989-03-01), Yoo

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