There is provided a backrest pivoting system having a backrest and an actuator for pivoting the backrest. The actuator is pivotably connected to the backrest by a pivot defining a first pivot axis. The backrest is configured to pivot about a guide member which defines a second pivot axis coaxial with the first pivot axis. There is also provided a backrest pivoting system including an actuator and a resilient member mounted in series with the actuator. There is also provided an extendable user support assembly comprising a lower body support panel and a core support panel supported by a frame, the lower body support panel being translatable relative to the frame such that an opening is created between the lower body support panel and the core support panel when the lower body support panel is translated away from the core support panel. There is also provided a method for placing a bed in a vascular position.

There is provided a backrest pivoting system having a backrest and an actuator for pivoting the backrest. The actuator is pivotably connected to the backrest by a pivot defining a first pivot axis. The backrest is configured to pivot about a guide member which defines a second pivot axis coaxial with the first pivot axis. There is also provided a backrest pivoting system including an actuator and a resilient member mounted in series with the actuator. There is also provided an extendable user support assembly comprising a lower body support panel and a core support panel supported by a frame, the lower body support panel being translatable relative to the frame such that an opening is created between the lower body support panel and the core support panel when the lower body support panel is translated away from the core support panel. There is also provided a method for placing a bed in a vascular position.

There is provided a backrest pivoting system having a backrest and an actuator for pivoting the backrest. The actuator is pivotably connected to the backrest by a pivot defining a first pivot axis. The backrest is configured to pivot about a guide member which defines a second pivot axis coaxial with the first pivot axis. There is also provided a backrest pivoting system including an actuator and a resilient member mounted in series with the actuator. There is also provided an extendable user support assembly comprising a lower body support panel and a core support panel supported by a frame, the lower body support panel being translatable relative to the frame such that an opening is created between the lower body support panel and the core support panel when the lower body support panel is translated away from the core support panel. There is also provided a method for placing a bed in a vascular position.

There is provided a backrest pivoting system having a backrest and an actuator for pivoting the backrest. The actuator is pivotably connected to the backrest by a pivot defining a first pivot axis. The backrest is configured to pivot about a guide member which defines a second pivot axis coaxial with the first pivot axis. There is also provided a backrest pivoting system including an actuator and a resilient member mounted in series with the actuator. There is also provided an extendable user support assembly comprising a lower body support panel and a core support panel supported by a frame, the lower body support panel being translatable relative to the frame such that an opening is created between the lower body support panel and the core support panel when the lower body support panel is translated away from the core support panel. There is also provided a method for placing a bed in a vascular position.

An electric bed includes a bed board unit, and an adjusting device mounted on a bottom of the bed board unit. The bed board unit includes a head board, a back board, a waist board, a hip board, a leg board and a foot board. The adjusting device includes a driving unit, a support unit, at least one track unit and at least one hinge unit. Thus, the waist board is pushed by the electric cylinder when the back board lies or is lifted, so that the waist board is operated independently and is lifted or lowered freely.

An electric bed includes a bed board unit, and an adjusting device mounted on a bottom of the bed board unit. The bed board unit includes a head board, a back board, a waist board, a hip board, a leg board and a foot board. The adjusting device includes a driving unit, a support unit, at least one track unit and at least one hinge unit. Thus, the waist board is pushed by the electric cylinder when the back board lies or is lifted, so that the waist board is operated independently and is lifted or lowered freely.

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.

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.

An electric bed includes a fixation rack, a back supporting rack swingably disposed to the fixation rack, a head supporting rack swingably disposed to the back supporting rack, an actuator for driving the back supporting rack to swing relative to the fixation rack, a slider disposed to the fixation rack in a way that the slider is forward and backward slidable relative to the fixation rack and being provided with a cam portion, a link pivotally connected with the back supporting rack and the slider to allow the slider to move forward and backward along with the swing of the back supporting rack, a push rod disposed to the back supporting rack and being movable forward and backward, and a front extension rod pivotally connected with the push rod and the head supporting rack.

An electric bed includes a fixation rack, a back supporting rack swingably disposed to the fixation rack, a head supporting rack swingably disposed to the back supporting rack, an actuator for driving the back supporting rack to swing relative to the fixation rack, a slider disposed to the fixation rack in a way that the slider is forward and backward slidable relative to the fixation rack and being provided with a cam portion, a link pivotally connected with the back supporting rack and the slider to allow the slider to move forward and backward along with the swing of the back supporting rack, a push rod disposed to the back supporting rack and being movable forward and backward, and a front extension rod pivotally connected with the push rod and the head supporting rack.