Split adjustable mattress foundation for multiple users
Adjustable mattress assemblies and processes including an adjustable mattress foundation dimensioned to support a mattress configured to accommodate two supine users during use thereof includes a foundation frame including a first sub-foundation configured with at least one motorized actuator to effect inclination or declination of the mattress support surface and an abutting second sub-foundation free of a motorized actuator. The second foundation is mechanically coupled to the first foundation such that articulation of the first sub-foundation results in a similar articulation in the second foundation. The first and second foundations have similar length, height and width dimensions, which collectively approximates the size of the oversized mattress configured to accommodate two supine users, e.g., king size, queen size, California king size, or the like.
1. A process for operating an adjustable mattress assembly dimensioned to support a mattress configured to accommodate two supine users, the process comprising:
providing a foundation frame comprising a first sub-foundation and a second sub-foundation, wherein the first sub-foundation abuts and has similar dimensions as the second sub-foundation, wherein each of the first and second sub-foundations includes a mattress support surface collectively configured to support the mattress dimensioned to accommodate the two supine users, the mattress support surface including a head and back section hingedly connected to an intermediate seat section at one end and a leg and foot section hingedly connected to the intermediate seat section at another end, wherein the intermediate seat section includes a first portion and a second portion, wherein the first portion is hingedly connected to the head and back section and the second portion is hingedly connected to the leg and foot section; and
actuating one or more motorized actuators in the first sub-foundation to effectively rotate one or more torsional members therein to effect inclination or declination of the head and back section and/or the leg and foot section via a linkage assembly, wherein rotating the one or more torsional members in the first sub-foundation rotates one or more torsional members in the second sub-foundation to effect the same inclination or declination of the head and back section and/or the leg and foot section, wherein the second sub-foundation is free of motorized actuators.
2. The process of claim 1 , wherein the linkage assembly in each of the first and second sub-foundations comprises a linkage support frame configured to be seated on the respective sub-foundation frame, first and second spaced apart torsional members coupled to the linkage support frame underlying each end of the intermediate seat section, a cross bar coupled to the linkage support frame and underlying a selected one of the first and second torsional members, and link arms having an end pivotally connected to crank arms coupled to the first and/or second torsional members.
3. The process of claim 1 , wherein rotating the one or more torsional members in the second sub-foundation by rotating the one or more torsional members in the first sub-foundation comprises rotating a shaft mechanically coupling the first and second torsional members in the first sub-foundation to the first and second torsional members in the second sub-foundation.
4. The process of claim 1 , wherein effecting inclination or declination of the head and back section relative to the intermediate seat section simultaneously changes the inclination or declination of the leg and foot section relative to the intermediate seat section.
5. The process of claim 1 , wherein simultaneously effecting inclination or declination of the head and back section and the leg and foot section comprises actuating a single actuator operatively coupled and linked thereto.
6. The process of claim 1 , wherein effecting inclination or declination of the head and back section relative to the intermediate seat section is independent from changing a position of the leg and foot section.
7. The process of claim 1 , wherein effecting inclination or declination of the head lengthens the intermediate seat section and causes the head and back section to slide towards a head end of the adjustable mattress assembly.
8. A process for forming an adjustable foundation dimensioned to support a mattress configured to accommodate two supine users, the process comprising:
laterally connecting a first sub-foundation abutting a second foundation to define the adjustable foundation, wherein each of the first and second sub-foundations includes a mattress support surface collectively configured to support the mattress dimensioned to accommodate the two supine users, the mattress support surface including a head and back section hingedly connected to an intermediate seat section at one end and a leg and foot section hingedly connected to the intermediate seat section at another end, wherein the intermediate seat section includes a first portion and a second portion, wherein the first portion is hingedly connected to the head and back section and the second portion is hingedly connected to the leg and foot section, wherein the first sub-foundation comprises a linkage assembly including one or more torsional members each coupled to one or more motorized actuators to effect inclination or declination of the head and back section and/or the leg and foot section, and wherein the second sub-foundation is free of a motorized actuator and comprises linkage assembly including one or more torsional members; and
mechanically connecting a shaft to the torsional members in the first sub-foundation to the torsional members in the second sub-foundation such that the motorized actuator in the first sub-foundation effects inclination or declination of the head and back section and/or the leg and foot section in the second sub-foundation.
9. The process of claim 8 , wherein laterally connecting the first sub-foundation abutting the second foundation comprises attaching a leg connector to legs at respectively abutting corners elevating the first and second sub-foundations relative to ground.
10. The process of claim 8 , wherein laterally connecting the first sub-foundation abutting the second foundation comprises fastening abutting sidewalls of respective sub-foundation frames defining the first and second sub-foundation to one another.
11. The process of claim 8 , wherein the motorized actuators in the first sub-foundation are proximate to an abutting sidewall of the first sub-foundation so as to minimize torsional rigidity.