Apparatus for protecting elevator shaft openings during shaft do

Details Apparatus for protecting elevator shaft openings during shaft do Apparatus for protecting elevator shaft openings during shaft do

1992-04-29

1993-09-07

Cuomo, Peter M.

Movable or removable closures

Mounted for multidirectional or oblique movement

Swings on plural axes; e.g., pivotal link arms

49 50, 49 55, E05D 1528

Patent

active

052417891

ABSTRACT:
A protective railing assembly for an elevator shaft door opening includes a railing which is secured to the floor at the shaft door opening by two hinged parallelogram linkages. The protective railing can be moved between two different horizontally spaced positions and thus be displaced through a predetermined distance without being removed from the shaft door opening. The railing can be mounted while the shaft door opening is still barricaded to permit the barricading to be removed and a shaft door mounted. The railing provides a continuous protection against the falling of persons into the shaft during the shaft door assembly. The protective railing is extensible for adaptation to different opening widths and the parallelogram linkages are maintained at a constant spacing one from the other to permit installation in openings of different widths.

REFERENCES:
patent: 1511260 (1924-10-01), Brousseau
patent: 1745661 (1930-02-01), Dittrich
patent: 1873229 (1932-08-01), Van Dresser
patent: 2780458 (1957-02-01), Thaxton
patent: 3155423 (1964-11-01), Cripe
patent: 3425165 (1967-02-01), Cleveland
patent: 3901481 (1975-08-01), Probst
patent: 4437265 (1984-03-01), Turro et al.
patent: 4510714 (1985-04-01), Kasper et al.
patent: 4635905 (1987-01-01), Fontana
patent: 4909483 (1990-03-01), van Herpen
patent: 4979725 (1990-12-01), Hutchings, II et al.

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