Patent ID: 6807695
Filing Date: 2004-10-26
Classification: A61G

Abstract:
In a bed having a main frame and a patient support mounted on said main frame, and comprising:first and second posts, each having a free end; first mounting means for slidably supporting said posts for simultaneous movement between a first position wherein said free ends are stowed underneath said patient support and a second position wherein said free ends are oriented wholly out from underneath said patient support; second mounting means for supporting said posts for simultaneous rotational movement between said second position wherein said free ends are also oriented in a plane beneath a plane of said patient support and a third position wherein said free ends are oriented in a plane above the plane of said patient support; said first and second mounting means being provided on a translational device including a housing with support means being provided for supporting said housing for rotational movement to and between positions corresponding to said second and third positions, said posts being slidably supported on said housing for movement to and between positions corresponding to said first and second positions, said translational device being configured to be responsive to manual forces applied to one of said pair of posts to effect a movement to and between said first and said second and said third positions for implementing a corresponding simultaneous movement of the other of said posts, said translational device further including a pair of spaced parallel toothed racks each slidably mounted on said housing and to said posts and a rotatably supported gear on said housing oriented in the space between said toothed racks and matingly engaging the teeth on each said toothed rack so that a translational movement of one of said toothed racks and a respective one of said posts secured thereto will cause a corresponding and simultaneous translational movement of the other of said toothed racks and a respective other of said posts secured thereto; free end positioning means for facilitating said simultaneous rotational movement only when said posts are in said second or third positions; wherein the improvement comprises: said translational device further including a pair of elongate guides having a longitudinal axis that extends generally perpendicular to a longitudinal axis of said patient support, each of said posts including a straight section at an end thereof remote from said free end, said straight section being rotatably and axially slidingly received in a respective said elongate guide and supported for said movement thereon between said first and second positions and said second and third positions, said free end positioning means including at least one elongate first slot extending lengthwise of each of said straight sections and extending generally parallel to a longitudinal axis of each of said straight sections, and a pin secured to said elongate guides and projecting radially into said elongate first slot to interlink said posts and said straight sections for simultaneous relative axial movement; and said elongate guides being rotatably supported in bearing sleeves mounted on said bed, said bearing sleeves and said straight sections having operatively releasably connected connection means thereon for facilitating a coupling of said straight sections to said bearing sleeves to render said straight sections incapable of rotative movement relative to said bearing sleeves and an uncoupling of said straight sections and bearing sleeves to render said straight sections rotatable between said second and third positions.