Adjustable articulated bed

An adjustable bed, comprising:

• a bed frame having a frame head end, a frame foot end and a rearmost frame support member at said frame foot end and supported by a lower support surface;
• a bed foundation supported by said frame and having a foundation foot end portion;
• a bed mattress supported on said foundation and having a mattress foot end portion supported on said foundation foot end portion;
• wherein said foundation is movable relative to said frame between a first position wherein said foundation foot end overhangs said frame support member by a substantial distance and a second position wherein said foundation foot end is closer to said frame head end and overhangs said frame support member by a distance substantially less than the substantial distance;
• and
• a foundation support member secured to said foundation foot end and movable therewith between the first and second positions and depending down therefrom to engage the lower support surface to thereby prevent tipping of said foundation over said frame support member when a significant downward force is exerted on an overhanging portion of said foundation foot end portion with said foundation foot end portion in the first position.

A method of adjusting the position of a bed, comprising the steps of:

• providing a motorized assembly supported by a bed frame, the assembly having a base assembly portion and a back assembly portion;
• providing a mattress foundation having a base foundation portion secured to the base assembly portion and a back foundation portion secured to the back assembly portion;
• and
• moving the back assembly portion, and thereby the back foundation portion, generally about a pivot point from a generally horizontal orientation to a pivotally raised orientation and radially away from the pivot point as the back assembly portion moves to the raised orientation.

An adjustable bed, comprising:

• a bed frame having a frame head end and a frame foot end;
• a foundation head assembly supported at least in part by said frame for supporting a head portion of a mattress, said foundation head assembly having an assembly head end;
• a foundation body assembly supported at least in part by said frame for supporting a body portion of the mattress;
• and
• motor means for pivoting said foundation head assembly end from a generally horizontal position to a pivoted raised position and, as said assembly head end is being pivoted up, for moving said foundation head assembly and said foundation body assembly relative to said frame and towards said frame head end;
• wherein said motor means moves said foundation head assembly away from said foundation body assembly.

An adjustable bed, comprising:

• a bed frame having a frame head end and a frame foot end;
• a foundation head assembly supported at least in part by said frame for supporting a head portion of a mattress, said foundation head assembly having an assembly head end;
• a foundation body assembly supported at least in part by said frame for supporting a body portion of the mattress;
• and
• motor means for pivoting said foundation head assembly end from a generally horizontal position to a pivoted raised position and, as said assembly head end is being pivoted up, for moving said foundation head assembly and said foundation body assembly relative to said frame and towards said frame head end;
• wherein said motor means includes a first hinge pivotally coupled to said foundation body assembly, a second hinge affixed to said foundation head assembly, a motor assembly, a bell crank pivotable about an axis of said foundation body assembly by the operation of said motor assembly, first linkage means for coupling said bell crank to said first hinge so that as said bell crank is pivoted said foundation head assembly is lifted, second linkage means for coupling said bell crank to said second hinge so that as said bell crank is pivoted said second hinge is moved along said first hinge, and a support member pivotally connecting said foundation head member to a lateral axis at the head of said frame.