Chiropractic table locking device

Claim 1

A chiropractic table comprising: a supporting base, an elongated body supporting table mounted thereon and being centrally divided into upper body-supporting and lower body-supporting portions, said lower body-supporting portion being pivotably mounted at the end thereof proximate to said upper body-supporting portion for deflection movement about a horizontal laterally extending axis, for lateral side-bending movement about a vertical axis, and for rotation movement about the longitudinal axis of said lower body-supporting portion, rotation lock means for locking said lower body-supporting portion in selected rotation position; side-bending lock means for locking said lower body-supporting portion in a selected side-bending position; said upper and said lower body-supporting portions each including a supporting frame, adjacent portions of said frames being relatively movable in response to said side-bending movement, said side-bending lock means including an elongated side-bending shaft pivotably connected to one of said relatively movable adjacent portions, said side-bending shaft being slidably received through said side-bending pivot post, and side-bending clamp means for clamping said side-bending shaft to said side-bending pivot post; said lower body-supporting portion includes a bed portion pivotably mounted to said lower body-supporting portion frame for said rotation movement, said bed and said lower body-supporting frame portion including adjacent portions relatively movable with respect to each other in response to said rotation movement, an elongated rotation shaft pivotably connected at one end thereof to one of said lower body-supporting portion adjacent portions, and a rotation pivot post pivotably connected to the other thereof, said rotation shaft being slidably received through said rotation pivot post, and rotation clamping means for clamping said rotation shaft in a selected position in said rotation pivot post; said side-bending and said rotation pivot posts are generally cylindrical members having reduced diameter end portions pivotably journaled in said other of said adjacent portions, said pivot posts having a cylindrical hole therethrough extending perpendicular to the axis thereof, said holes having a diameter complementary to the diameter of said rotation and side-bending shafts, and further including a threaded hole extending axially therein and communicating between the distal end of said posts and said cylindrical holes, a threaded element being operatively received in said threaded holes and being axially movable between a position frictionally engaging a respective one of said rotation and side-bending shafts and a second position disengaged therefrom in response to rotation of said threaded element.