Folding chair capable of converting into step ladder

Details Folding chair capable of converting into step ladder Folding chair capable of converting into step ladder

1985-03-20

1985-12-10

Machado, Reinaldo P.

Fire escape, ladder, or scaffold

Convertible

Ladder

182125, 297118, A47C 1300, A47C 900, A47C 318

Patent

active

045573506

ABSTRACT:
A folding chair in which two pairs of linkage means are mounted on the opposite sides of a seat having two imbricating seat portions, the two seat portions being disposed one after the other on the same horizontal plane in forming the folding chair with back or the two seat portions being imbricately disposed one above the other on two different horizontal planes in which the uppermost pedal being rested on the top surface of the back, displacement in position of the two seat portions being defined and coupled by a pair of linkages.

REFERENCES:
patent: 1596909 (1926-08-01), Weeks
patent: 1831143 (1931-11-01), Shambaugh
patent: 2052450 (1936-08-01), Cooney
patent: 2523466 (1950-09-01), Greene
patent: 2805703 (1957-09-01), Wise
patent: 3075610 (1963-01-01), Lubke
patent: 4440264 (1984-04-01), Knoke

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