Adjustable and foldable bed frame

An adjustable bed frame for supporting mattress means in spaced relationship to a floor, comprising:

• a pair of spaced, parallel, horizontally disposed side rails, a pair of spaced parallel, horizontally disposed end rails extending substantially transversely between said side rails for holding said side rails in spaced, parallel relationship, each end rail including first and second elongated elements each having at least one wall with an outer surface and an inner surface, said first element having a first end mounted to one of said side rails and said second element having a first end mounted to one end of the other of said side rails, each of said elements having a second end disposed in slidable relationship to one another along the axis of said elements with the outer surface of the wall of said first element facing and engaging the inner surface of the wall of said second element, at least one protrusion extending outwardly from the outer surface of the wall of said first element, means defining at least one elongated opening in the wall of said second element permitting said protrusion to be inserted when said first and second elements are positioned in engagement with one another, said opening having an edge defining a plurality of teeth extending along the axis of said second element, spring loaded pawl means secured to said first element and receivable in said opening to engage said teeth one at a time, said teeth facing in a direction such that said pawl is free to ride over said teeth when said first and second elements are moved inwardly toward one another, engagement between said pawl and one of said teeth preventing said first and second elements from moving outwardly relative to one another,
• means for pivotably mounting each of said first and second elements to said respective side rails so that said elements can be rotated from a position generally perpendicular to said respective side rails to a position generally parallel to and alongside said respective side rails, wherein said side rails include a generally horizontally extending member for supporting said mattress means, said horizontal members each terminate in an inner edge and define a through aperture, and said means for pivotally mounting includes a generally horizontally extending plate having one end fixedly secured to said first end of one of said elements and a second end, said plate defining a through aperture adjacent said second end, and pin means extend through said apertures in each of said horizontal members and said respective plates, said elements being pivotable about said respective pin means.

An adjustable bed frame member adapted to extend transversely between a pair of horizontally disposed further bed frame members so as to hold said further bed frame members in spaced, parallel relationship, said adjustable member comprising first and second elongated elements each having at least one wall with an outer surface and an inner surface, said first element having a first end mounted to one end of one of said further bed frame members and said second element having a first end mounted to one of the other of said further bed frame members, each of said elements having a second end disposed in slidable relationship to one another along the axis of said elements with the outer surface of the wall of said first element facing and engaging the inner surface of the wall of said second element, at least one protrusion extending outwardly from the outer surface of the wall of said first element, means defining at least one elongated opening in the wall of said second element permitting said protrusion to be inserted when said first and second elements are positioned in engagement with one another, said opening having an edge defining a plurality of teeth extending along the axis of said element, spring loaded pawl means secured to said first element and receivable in said opening to engage said teeth one at a time, said teeth facing in a direction such that said pawl is free to ride over said teeth when said frame members are moved inwardly toward one another, engagement between said pawl and one of said teeth preventing said frame members from moving outwardly relative to one another, each protrusion comprising a rivet having a head portion and a shank portion, said elongated opening having an enlarged diameter portion through which the head portion of the rivet is receivable, and an elongated narrow portion of predetermined transverse width which is greater than the diameter of the shank portion of the rivet and less than the diameter of the head portion of the rivet, whereby said first and second elements are positively held against separation.