Retractable porch and stair apparatus for trailers

Details Retractable porch and stair apparatus for trailers Retractable porch and stair apparatus for trailers

1980-03-10

1982-09-07

Byers, Jr., Nile C.

Bridges

Gangway, ramp, or dock leveler

Attached

52 69, 182 88, 182115, E01D 100

Patent

active

043476384

ABSTRACT:
A retractable porch and stair apparatus suitable for use with trailers and the like has a pair of parallel elongate channel members for attachment to the underside of a trailer. A floor member having preferably iron grating therein for strength and cleanliness is disposed on a pair of parallel runner members slidingly mounted on the channel members so that the floor member can be slidingly moved from the underside of the trailer to a position adjacent thereto. A stair combination having parallel side support members in the form of channel members is connected at one end to a corresponding pair of second channel members mounted on the underside of the floor member and extending to the side of the floor member so that the stair combination can be raised to horizontal position and slidingly moved underneath the floor member, and the floor member and stair members can then be slidingly moved under the trailer for storage.

REFERENCES:
patent: 2457380 (1948-12-01), Kelberer
patent: 2786710 (1957-03-01), Chapman
patent: 2929654 (1960-03-01), Jones
patent: 3515406 (1970-06-01), Endsley
patent: 3693754 (1972-09-01), Butler
patent: 3796456 (1974-03-01), Bergeson
patent: 3808757 (1974-05-01), Greenwood
patent: 3906690 (1975-09-01), Miriani
patent: 3912298 (1975-10-01), Humphrey
patent: 4078678 (1978-03-01), Tordella
patent: 4139078 (1979-02-01), Keller

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