Method and apparatus for stabilizing a ladder

Details Method and apparatus for stabilizing a ladder Method and apparatus for stabilizing a ladder

1985-10-31

1987-02-10

Machado, Reinaldo P.

Fire escape, ladder, or scaffold

Ladder with pivoted prop

Lateral prop

E06C 122, E06C 536

Patent

active

046417290

ABSTRACT:
A ladder stabilizer (32, 232) suitable for use with a ladder (30, 230). A preferred stabilizer (32) includes an elongate telescoping stabilizer member (46) which is pivotally connected to the apex of the ladder (30). The inner submember (50) is pivotally attached to the apex of ladder (30). The outer submember (52) of the stabilizer (46) is operatively connected to pivotally opposing uprights (34) and (36) such that the stabilizer (32) enjoys a three point connection to the ladder (30) to maximize the rigidity of the ladder/ladder stabilizer combination. Preferred embodiments include lock assemblies (62, 81, 82). Release of the lock assemblies allows the stabilizer to be laterally and transversely adjusted. When the lock assemblies are activated, the stabilizer (46) is locked relative to the ladder (30) thereby stabilizing the ladder regardless of the ground conditions or the presence of a wall, for example.

REFERENCES:
patent: 281977 (1883-07-01), Coons
patent: 1610596 (1926-12-01), Bird
patent: 1970624 (1934-08-01), Recker
patent: 2997127 (1961-08-01), Wojtowicz
patent: 3508628 (1970-04-01), Conrad
patent: 3786900 (1974-01-01), Olsen
patent: 3856112 (1974-12-01), Stewart
patent: 3878917 (1975-04-01), McBride
patent: 3901354 (1975-08-01), Grebausky
patent: 4565262 (1986-01-01), Hawkins

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