Patent ID: 7044704
Filing Date: 2006-05-16
Classification: B60P

Abstract:
1. A portable lifting bed adapted to be supported on a supporting surface comprising: a base frame supported on the supporting surface; a bed frame having an upwardly presented bed surface; at least two diagonal mounting mechanisms, each rigidly connected to the bed frame, and wherein the diagonal mounting mechanisms are adapted for guiding the bed frame for movement from an elevated position wherein the bed fame is closely adjacent the base frame to a lowered position wherein the bed frame is closely adjacent the supporting surface; a diagonal longitudinally extensible actuator having a first end pivotally connected to the base frame and a second end pivotally connected to the bed frame, the longitudinally extensible actuator being capable of moving the bed frame between the elevated and lowered positions; wherein the longitudinally extensible actuator includes a longitudinal actuator axis and at least two mounting mechanisms each include a longitudinal mounting mechanism axis, the actuator axis and the two mounting mechanism axes being approximately parallel to one another throughout movement of the bed frame between the elevated and lowered positions; wherein the longitudinally extensible actuator comprises a cylinder and rod assembly; a track follower associated with each of the at least two diagonal mounting mechanisms and connected to the base frame; wherein the at least two mounting mechanisms each comprise an elongated guide track such that the track follower associated with each of the mounting mechanisms is guided in the guide track and movable along the length thereof, the guide track connected to the bed frame; wherein the track follower comprises a roller; wherein the base frame is adapted to accommodate a tow bar; and wherein the longitudinally extensible actuator is operatively connected to a hydraulic output.