Hinge for adjustable beds and the like

In an adjustable bed having a mattress, a frame carrying a first mattress support thereon, and at least one additional, movable mattress support section rotatable with respect to said frame, the improvement of a hinge for connecting said movable support section with said frame;

• said hinge comprising:
• a first plate pivotally connected with said movable support section at a first point on said plate;
• said first point being disposed on said first plate at a preselected location, whereby said plate is disposed generally below said movable support section;
• said first plate having second and third pivotal connection points, spaced apart from said first point and each other, and disposed generally below said first point;
• said third point being positioned on said plate at a location spaced laterally from a straight, imaginary line connecting said first and second points;
• a second plate pivotally connected with said frame at a first point on said second plate;
• the first point of said second plate being disposed at a preselected location thereon, whereby said second plate is disposed generally below said frame;
• said second plate having second and third pivotal connection points, spaced apart from the first point of said second plate and each other, and disposed generally below said second plate first point;
• the third point of said second plate being positioned thereon at a location spaced laterally apart from a straight, imaginary line connecting the first and second points of said second plate;
• a first link having one end thereof pivotally connected with said movable support section, and the other end pivotally connected with the third point of said second plate;
• a second link having one end thereof pivotally connected with said frame, and the other end pivotally connected with the third point of said first plate;
• and
• means for pivotally interconnecting said first and second plates at said second pivotal connection points, whereby said movable mattress support section is rotatable with respect to said frame about an axis of rotation disposed generally above said first and movable support section and adjacent to the center of said mattress to alleviate compressing that portion of said mattress disposed between said movable and first mattress support sections.

A hinge for adjustable beds and the like having a mattress, and first and second mutually articulated mattress support sections;

• said hinge comprising:
• a first plate adapted for pivotal connection with one of said bed sections at a first point on said plate;
• said first point being disposed on said first plate at a preselected location, whereby said plate is disposed generally below said one bed section;
• said first plate having second and third pivotal connection points spaced apart from said first point and each other, and disposed generally below said first point;
• said third point being positioned on said plate at a location spaced laterally from a straight, imaginary line connecting said first and second points;
• a second plate adapted for pivotal connection with the other one of said bed sections at a first point on said second plate;
• the first point of said second plate being disposed at a preselected location thereon, whereby said second plate is disposed generally below said other bed section;
• said second plate having second and third pivotal connection points, spaced apart from the first point of said second plate and each other, and disposed generally below said second plate first point;
• the third point of said second plate being positioned thereon at a location spaced laterally apart from a straight, imaginary line connecting the first and second points of said second plate;
• said first, second and third pivotal connection points on each of said plates defining congruent right triangles, the right angle of each of said triangles defining said second points;
• a first link having one end thereof adapted for pivotal connection with said one bed section, and the other end pivotally connected with the third point of said second plate;
• a second link having one end thereof adapted for pivotal connection with said other bed section, and the other end pivotally connected with the third point of said first plate;
• means for pivotally interconnecting said first and second plates at said second pivotal connection points,
• whereby one of said mattress support sections is rotatable with respect to the other mattress support section about an axis of rotation disposed generally above the mattress support sections to alleviate compressing that portion of the mattress disposed between the two mattress support sections.

A hinge for adjustable beds and the like having a mattress, and first and second mutually articulated mattress support sections;

• said hinge comprising:
• a first plate adapted for pivotal connection with one of said bed sections at a first point on said plate;
• said first point being disposed on said first plate at a preselected location, whereby said plate is disposed generally below said one bed section;
• said first plate having second and third pivotal connection points spaced apart from said first point and each other, and disposed generally below said first point;
• said third point being positioned on said plate at a location spaced laterally from a straight, imaginary line connecting said first and second points;
• a second plate adapted for pivotal connection with the other one of said bed sections at a first point on said second plate;
• the first point of said second plate being disposed at a preselected location thereon, whereby said second plate is disposed generally below said other bed section;
• said second plate having second and third pivotal connection points, spaced apart from the first point of said second plate and each other, and disposed generally below said second plate first point;
• the third point of said second plate being positioned thereon at a location spaced laterally apart from a straight, imaginary line connecting the first and second points of said second plate;
• a first link having one end thereof adapted for pivotal connection with said one bed section, and the other end pivotally connected with the third point of said second plate;
• a second link having one end thereof adapted for pivotal connection with said other bed section, and the other end pivotally connected with the third point of said first plate;
• means for pivotally interconnecting said first and second plates at said second pivotal connection points, whereby one of said mattress support sections is rotatable with respect to the other mattress support section about an axis of rotation disposed generally above the mattress support sections to alleviate compressing that portion of the mattress disposed between the two mattress support sections;
• and wherein said first and second plates each have a right triangular shape with first and second legs disposed mutually perpendicular, and a third leg disposed along the hypotenuse of said plate;
• said first pivotal connection point on each plate is disposed adjacent the corner formed by the intersection of said first and third legs;
• said second pivotal connection point on each plate is disposed adjacent the corner formed by the intersection of said first and second legs;
• and
• said third pivotal connection points on each plate is disposed adjacent the corner formed by the intersection of said second and third legs.