Rocking bed that produces pitch, roll, translational and vibration movements

Abstract

A rocking bed includes a top frame structure capable of holding a mattress, connecting to a first support structure resting on a pitch axle pivoting between two pillow block bearings, a bottom frame structure housing a motor and connecting to a crank and a shaft, wherein the crank and shaft initiates linear motion when the motor is engaged, pitching the top frame structure up and down. The pitch axle and the pillow block bearings are located at a position which is greater than 51 percent of a length of the top frame structure.

1 . A rocking bed comprising:
 a top frame structure capable of holding a mattress, connecting to a first support structure resting on a pitch axle pivoting between two pillow block bearings;   a bottom frame structure housing a motor and connecting to a crank and a shaft, wherein the crank and shaft initiates linear motion when the motor is engaged, pitching the top frame structure up and down, wherein the pitch axle and the pillow block bearings are located at a position which is greater than 51 percent of a length of the top frame structure.   
     
     
         2 . The rocking bed of  claim 1 , wherein the motor is a linear actuator capable of converting rotary motion to linear motion to pitch said top frame structure up and down. 
     
     
         3 . The rocking bed of  claim 1 , wherein the support structure is a triangular truss apparatus or a pyramidal truss apparatus. 
     
     
         4 . The rocking bed of  claim 1 , wherein the pitch axle and the pillow block bearings are located at a position which is in a range between 51 percent and 58 percent of the of the top frame structure. 
     
     
         5 . The rocking bed of  claim 1 , wherein the bottom frame structure is a triangular frame structure. 
     
     
         6 . A rocking bed comprising:
 a top frame structure capable of holding a mattress, connecting to a first support structure resting on a pitch axle pivoting between two pillow block bearings;   a bottom frame structure housing a motor and connecting to a crank and a shaft, wherein the crank and shaft initiates linear motion when the motor is engaged, pitching the top frame structure up and down, wherein the pitch axle and the pillow block bearings are located at a position which is greater than 51 percent of a length of the top frame structure, and   a damping mechanism connected between the first support structure and the bottom frame structure.   
     
     
         7 . The rocking bed of  claim 6 , wherein the damping mechanism is a shock absorber, a torsion bar, or a strut. 
     
     
         8 . The rocking bed of  claim 1 , wherein the amplitude of the pitching motion is controlled by adjusting a location at which the crank connects to the shaft when the rocking bed is at rest.