Patent ID: 6905508

Claim:
A multi-function chiropractic treatment table having a lumbar support and adjustment assembly comprising: (a) a lumbar support plate mounted upon a rigid body support frame of said table; (b) an upper pneumatic cylinder having an upper piston rod associated therewith, said cylinder having a proximal end rigidly secured to said support frame and having a distal end having an aperture for fluid tight reciprocal receipt of a proximal end of said piston rod therein, said piston rod also having a distal end; (c) a lower pneumatic cylinder having a lower piston rod associated therewith, said lower cylinder having a proximal end pivotally secured to said support frame and having a distal end having an aperture for fluid tight reciprocal receipt of a proximal end of said lower piston rod therein, said piston rod having a distal end, in which said proximal ends of said respective cylinders are separated from each other by a longitudinal dimension in a range of about 20 to 30 centimeters; (d) a lumbar cushion mounted upon an upper side of a rigid lumbar cushion plate, a lower side of said rigid lumbar cushion plate pivotally secured to each of said distal ends of said piston rods of said respective upper and lower cylinders; (e) means for selectably changing the extent of extension of said upper piston rod relative to said upper cylinder; and (f) means for selectably changing the extent of extension of said lower piston rod relative to said lower cylinder, whereby the height and angulation's of said lumbar cushion relative to said body support frame may be readily changed by same assembly.