Patent ID: 6854141

Claim:
In a method of controlling raising and/or lowering of pivotally rotatable bottom sections of lying furniture having a back bottom section for raising and/or lowering a back portion of a lying person and a knee bottom section for raising and/or lowering a lying person's knee portion, and wherein said back bottom section is inclined after having been pivotally rotated and lifted, and said knee bottom section has been lowered to a flat position, the improvement comprising in the following order, the steps of: (1) first begin raising the knee bottom section; (2) thereafter, at a predetermined time, begin lowering the back bottom section; (3) continue lowering the back bottom section while the knee bottom section rises to a highest position; and then (4) lowering the knee bottom section at a rate such that the knee bottom section reaches its lowest position of lying flat at a time instant later than when the back bottom section is lowered to its lower limit position of lying flat, whereby to prevent a person lying in the furniture from sliding during lowering of the back bottom section and also to prevent unpleasant pressure feeling during lowering of the back bottom section.