US Patent 11957248 Adjustable bed base with subframe for lift and tilt

An adjustable bed base has a subframe which may be raised and lowered relative to a stationary frame by primary linear actuators. A deck is attached to the subframe. The deck may be flat or fully articulated depending upon the position of secondary linear actuators which are a part of a subframe module. The subframe module may be secured to the stationary frame of the adjustable bed base. The deck may be inclined by extending one of the primary linear actuators more than the other regardless of the positions of the deck members.