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Articulated adjustable bed having a single motor drive

An adjustable bed is shown having an adjustable frame which supports an articulated mattress. The frame mounts a single motor which lifts a first adjustable section thereof through a threaded drive shaft. A push linkage connects from the first adjustable section of the frame back to the frame itself where a conversion plate connects the push linkage to a pull linkage. The pull linkage connects to a second adjustable section of the frame. The single motor thus raises the first adjustable section and, through the linkage, the second adjustable section.

Adjustable bed

An adjustable bed is particularly adapted for the care of patients at home, and comprises a stationary frame, and a mattress support having a head section, a center section, and a foot section, which are hingedly interconnected. A lift arm has opposing ends thereof pivotally connected with the frame and the mattress support center section respectively, and includes a power device which selectively pivots the lift arm to raise and lower the mattress support thereby adjusting patient elevation. A longitudinally extending motor has opposing ends thereof pivotally connected with the frame and the mattress support center section at a point spaced from the lift arm center section pivot, whereby motor extension and retraction pivots the mattress support about the lift arm pivot, thereby bodily tilting the same for adjusting patient inclination.

Safety device for an adjustable bed

A safety device for an adjustable bed having an articulated mattress is shown including a power drive module having adjustable sections that support corresponding sections of the articulated mattress. Multiple winding electrical motors are mounted within the drive module for driving the adjustable sections through linkages. Due to the weight of the articulated mattress and adjustable section, the linkages are always in tension. However, should a foreign object, such as a hand, be placed below the mattress supporting section as it is lowered, the linkage will be exposed to a compression force. A switch is mounted within the linkage to sense the compression force and inhibit the motor winding which lowers the bed. However, the winding which raises the adjustable bed continues to be enabled to permit the bed to be raised and the foreign object removed.

Adjustable support frame for an adjustable bed or the like

Disclosed herein is an adjustable support frame for an adjustable bed or the like comprising an articulable load-bearing portion having a head element articulably connected to said base, a middle element articulably connected to said head element, and a foot element articulably connected to said middle element. Adjustable support means communicate between said base and each of said middle and foot elements for both supporting said elements over said base as well as for adjusting the position of said elements relative to each other and to said base without affecting the position of said head element relative to said base.


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