Bed rocking mechanism

Claim 2

Portable apparatus for imparting a rocking motion to a bed having a first and second substantially opposed sides including: first support means having a base, a cylinder having a first end mounted on said base and a second end, a piston reciprocally movable within said cylinder, a piston rod attached to said piston at a first end and having a second end extending through said second end of said cylinder, and a first member attached to said piston rod at a point adjacent to the second end of said piston rod, said first member being movable by the motion of said piston rod; second support means including a second member and a base to support said second member; linking means to operably connect said first member to said first side of said bed and said second member to said second side of said bed; a source of pressurized fluid; a reversing switch having an input connected to said source of pressurized fluid and a first and second outputs; first and second valves connected respectively to said first and second outputs of said reversing switch, said first valve being connected to said first end of said cylinder and said second valve being connected to said second end of said cylinder; and timing means to cause said reversing switch alternately to direct said pressurized fluid through said first and said second outputs to cause said first member to move so as to alternately lift and lower said first side of said bed.

Claim 3

Portable apparatus as claimed in claim 1 wherein said linking means includes means to connect said first and second members.

Claim 4

Portable apparatus for imparting a rocking motion to a bed having a first and second substantially opposed sides including: first support means having a base, a cylinder having a first end mounted on said base and a second end, a piston reciprocally movable within said cylinder, a piston rod attached to said piston at a first end and having a second end extending through said second end of said cylinder, and a first horizontally oriented member attached to said piston rod at a point adjacent to the second end of said piston rod, said first horizontally oriented member being movable in a substantially vertical plane by the motion of said piston rod; second support means including a second horizontally oriented member and a base to support said second horizontally oriented member at a predetermined verticle height; linking means to operably connect said first horizontally oriented member to said first side of said bed and said second horizontally oriented member to said second side of said bed; a source of pressurized fluid; a reversing switch having an input connected to said source of pressurized fluid and a first and second outputs; first and second valves connected respectively to said first and second outputs of said reversing switch, said first valve being connected to said first end of said cylinder and said second valve being connected to said second end of said cylinder; and timing means to cause said reversing switch alternately to direct said pressurized fluid through said first and said second outputs to cause said first horizontally oriented member to move reciprocally in said vertical plane to alternately lift and lower said first side of said bed.

Claim 5

Portable apparatus for imparting a rocking motion to a bed having a first and second substantially opposed sides including: first support means having a base, a cylinder having a first end mounted on said base and a second end, a piston reciprocally movable within said cylinder, a piston rod attached to said piston at a first end and having a second end extending through said second end of said cylinder, and a first horizontally oriented member attached to said piston rod at a point adjacent to the second end of said piston rod, said first horizontally oriented member being movable in a substantially vertical plane by the motion of said piston rod; second support means including a second horizontally oriented member and a base to support said second horizontally oriented member at a predetermined verticle height; linking means to operably connect said first horizontally oriented member to said first side of said bed and said second horizontally oriented member to said second side of said bed; a source of pressurized fluid; a reversing switch having an input connected to said source of pressurized fluid and a first and second outputs; first and second valves connected respectively to said first and second outputs of said reversing switch, said first valve being connected to said first end of said cylinder and said second valve being connected to said second end of said cylinder; and timing means to cause said reversing switch alternately to direct said pressurized fluid through said first and said second outputs to cause said first horizontally oriented member to move reciprocally in said vertical plane to alternately lift and lower said first side of said bed.

Claim 6

Portable apparatus as claimed in claim 3 in which said linking means include at least two flexible connecting members said connecting members being connected to and extending between the respective opposed ends of said first and said second horizontally oriented members, said elongated flexible connecting members passing beneath said bed.

Claim 7

Portable apparatus as claimed in claim 3 in which said linking means include at least a first two flexible connecting members connected respectively between the ends of said first horizontally oriented member and two longitudinally spaced points on said first side of said bed and at least a second two flexible connecting members connected respectively between the ends of said second horizontally oriented member and two longitudinally spaced points on said second side of said bed.

Claim 8

Portable apparatus as claimed in claim 5 including coupling means for removably attaching each of said flexible connecting members respectively to said points on the sides of said bed.

Claim 9

Portable apparatus as claimed in claim 3 in which said reversing switch includes a third output and in which an exhaust muffler is connected to said third output.

Claim 10

Portable apparatus for imparting a rocking motion to a bed having a longitudinal axis and a first and second substantially opposed sides including: a first and second hydraulic cylinders, each of which includes a cylinder having first and second ends, a piston reciprocally movable within said cylinder between said first and second ends, and a piston rod attached to and movable with said piston said piston rod having a portion extending out of said cylinder at said second end, and a horizontally disposed member attached to said portion of said piston rod and movable by said piston rod in a substantially verticle plane; linking means to operably connect said horizontally disposed member of said first reciprocating mechanism to said first side of said bed and said horizontally disposed member of said second reciprocating mechanism to said second side of said bed; a source of pressurized fluid; a reversing switch having an input connected to said source of pressurized fluid and first and second outputs; first and second valves connected to said first output of said reversing switch and third and fourth valves connected to said second output of said reversing switch; said first valve being connected to said first end of said cylinder of said first hydraulic cylinder and said second valve being connected to said second end of said cylinder of said second hydraulic cylinder, said third valve being connected to said first end of said cylinder of said second hydraulic cylinder and said fourth valve being connected to said second end of said cylinder of said first hydraulic cylinder; and timing means to cause said reversing switch alternately to direct said pressurized fluid through said first and said second outputs causing said first and second horizontally disposed members to move in mutually opposed reciprocal motion to alternatively lift and lower each of said opposed sides of said bed to rock said bed about said longitudinal axis.

Claim 11

Portable apparatus for imparting a rocking motion to a bed having a longitudinal axis and a first and second substantially opposed sides including: a first and second hydraulic cylinders, each of which includes a cylinder having first and second ends, a piston reciprocally movable within said cylinder between said first and second ends, and a piston rod attached to and movable with said piston said piston rod having a portion extending out of said cylinder at said second end, and a horizontally disposed member attached to said portion of said piston rod and movable by said piston rod in a substantially verticle plane; linking means to operably connect said horizontally disposed member of said first reciprocating mechanism to said first side of said bed and said horizontally disposed member of said second reciprocating mechanism to said second side of said bed; a source of pressurized fluid; a reversing switch having an input connected to said source of pressurized fluid and first and second outputs; first and second valves connected to said first output of said reversing switch and third and fourth valves connected to said second output of said reversing switch; said first valve being connected to said first end of said cylinder of said first hydraulic cylinder and said second valve being connected to said second end of said cylinder of said second hydraulic cylinder, said third valve being connected to said first end of said cylinder of said second hydraulic cylinder and said fourth valve being connected to said second end of said cylinder of said first hydraulic cylinder; and timing means to cause said reversing switch alternately to direct said pressurized fluid through said first and said second outputs causing said first and second horizontally disposed members to move in mutually opposed reciprocal motion to alternatively lift and lower each of said opposed sides of said bed to rock said bed about said longitudinal axis.

Claim 12

Portable apparatus as claimed in claim 8 in which said linking means include at least two elongated flexible members having ends connected to and extending respectively between opposed ends of said horizontally oriented members of said first and second hydraulic cylinders, said elongated flexible members passing beneath said bed.

Claim 13

Portable apparatus as claimed in claim 8 in which said reversing switch includes a third output and in which an exhaust muffler is connected to said third output.

Claim 14

Portable apparatus as claimed in claim 8 in which at least one of said first and second horizontally oriented members is a rod which is rotatable about its longitudinal axis and including locking means to lock said rotatable rod at a desired position.

Claim 15

Portable apparatus as claimed in claim 8 in which said linking means include at least a first two flexible connecting members connected respectively between the ends of said horizontally oriented member of said first hydraulic cylinder and two longitudinally spaced points on said first side of said bed and at least a second two flexible connecting members connected respectively between the ends of said horizontally oriented member of said second hydraulic cylinder and two longitudinally spaced points on said second side of said bed.