Double joint assembly

Details Double joint assembly Double joint assembly

1975-08-13

1976-12-28

Gilliam, Paul R.

Beds

Crib

Folding

5111, A47C 2900, A47C 1916

Patent

active

039992292

ABSTRACT:
A double joint assembly for interconnecting three elements of a foldable structure, two elements being capable of pivoting in the same plane so as to be located at a pre-selected angle to the third element, the joint assembly comprising a forked member, a clamping member and a bolt member, each of which members is integral with, or affixable to one of the said elements, the clamping member and the bolt member each having a flat portion which is pivotable about a pivot axis and which is located in an aperture formed in the forked member, each flat portion having a cam surface formed thereon having at least one support surface, that the clamping member abuts against one surface of the forked member when the foldable structure is extended, the cam surface of the bolt member co-operating with the cam surface of the clamping member such that, in use, the clamping member is retained in position relative to the forked member in two directions, the angular position of the bolt member being determined by the angle at which its support surface abuts against one of the surfaces of the clamping member.

REFERENCES:
patent: 893364 (1908-07-01), Piaser

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