Mechanical connection element

Details Mechanical connection element Mechanical connection element

1988-11-14

1990-04-03

Machado, Reinaldo P.

Fire escape, ladder, or scaffold

Wall- or floor-attached

Ladder

182206, 5 9B, 403353, E06C 136

Patent

active

049132628

ABSTRACT:
A mechanical connection element comprising a substantially rigid body having therein a cylindrical through cavity accessible via a channel to the outside of the body. This element (or anything attached thereto) can be secured simply, reversibly and perpendicularly to a cross-sectionally rectangular bar. Thus, in one orientation, the bar passes through the channel and into the cavity but in a second orientation, achieved by rotation of the bar, is retained in the cavity. Two such connection elements may advantageously be used atop a bunk-bed ladder for safe affixment to a horizontal bar of the bunk. The element ensures such a ladder be unremoveable when in operative mode.

REFERENCES:
patent: 691885 (1902-01-01), Abney
patent: 2404523 (1946-07-01), Nesson
patent: 2767032 (1956-10-01), Mitchell
patent: 3360075 (1967-12-01), Gutner
patent: 3557906 (1971-01-01), Gutner
patent: 4193146 (1980-03-01), Fredman
patent: 4257492 (1981-03-01), Rasada

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