Patent ID: 7334277

Claim:
A bed comprising: a mattress support frame for supporting a mattress; a wheel frame movably coupled with the mattress support frame to allow for movement of the mattress support frame between a fully lowered position and a fully raised position relative to the wheel frame; a leverage member movably mounted between the mattress support frame and the wheel frame; and a lift actuator operable to retract and extend, with the lift actuator and the leverage member being arranged such that an initial extension of the lift actuator causes the leverage member to urge the mattress support frame away from the wheel frame until the mattress support frame moves from the fully lowered position to a partially raised position, and such that a subsequent extension of the lift actuator causes the mattress support frame to move from the partially raised position to the fully raised position relative to the wheel frame, wherein the leverage member includes a first end and a second end, and the leverage member is pivotably mounted between the mattress support frame and the wheel frame about a fulcrum located between the first end and the second end, and the lift actuator is pivotably coupled with the second end of the leverage member.