Service platform for a ladder

Details Service platform for a ladder Service platform for a ladder

1983-02-22

1984-03-20

Machado, Reinaldo P.

Fire escape, ladder, or scaffold

Ladder and platform

Platform with ladder as support

248238, E06C 716, E06C 714

Patent

active

044375441

ABSTRACT:
A service platform for a ladder has a ladder rung locking means that provides support for a frame member upon which a user stands. A scissor-like action is produced about a bearing wherein one lever arm is an extended arm attached to the frame and the other lever arm is a support lever connected directly to the other support lever by a support bar which rests upon the side rails of the ladder. The ladder rung is inserted into slots formed in the extended arms, the bearings, and in the support levers. Rotation of the frame causes the slots to become misaligned thereby locking the ladder rung therein. The service platform can be stored on the ladder without interfering with its use.

REFERENCES:
patent: 362747 (1887-05-01), Higgins
patent: 1187437 (1916-06-01), Lucas
patent: 1820315 (1931-08-01), Miller
patent: 1943626 (1934-01-01), Richard
patent: 2148958 (1939-02-01), Myers
patent: 2151135 (1939-03-01), Moberg
patent: 2486783 (1949-11-01), Hartman
patent: 3067836 (1962-12-01), Carnicelli
patent: 3294197 (1966-12-01), Kwiatkowski
patent: 4306700 (1981-12-01), Bell

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