Wheeled ladder

Details Wheeled ladder Wheeled ladder

1990-12-05

1992-01-21

Machado, Reinaldo P.

Fire escape, ladder, or scaffold

Horizontal traversing - actuation, control, or response

Holding means

182113, 182116, E06C 1397

Patent

active

050820869

ABSTRACT:
A ladder is disclosed including wheels normally received off the ground, and four legs normally supporting the ladder. When it is desired to move the ladder, it is pivoted off the legs until the wheels contact the ground and fully support the ladder. The ladder may then be moved. A rail includes an angled portion which provides a handle allowing the ladder to be easily moved. The wheel is most preferably mounted above the ground by a distance between its radius and its diameter such that when the ladder is supported on the wheels, the legs will not interfere with the ground.

REFERENCES:
patent: 3130814 (1964-04-01), Aquila
patent: 3552521 (1971-01-01), Tate
patent: 3841437 (1974-10-01), Caughey
patent: 4063616 (1977-12-01), Gutierrez
patent: 4442919 (1984-04-01), Fulcher

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