Patient chair for dentistry

摘要

(57) Abstract Objective In all remedy positions the optimum of the patient headSupport is made possible is as level as possible having the headrest whichThe patient chair for ru dentistry is offered. Constitution To longitudinal direction of back rest adjustment possible inserting boardTilt possibly the pin it is joined by 17 abscissa belt 18 as a center,It is to have headrest 3, in headrest 3 pin joinIt pulls with re adjustment and 22 loads power or compression denselyWith to be possible, with that even tilt possibility of headrest the codIt does with pin coupling axis 19 of the stick 20 which abscissa belt 18 this tiltTo form the lever arm because of motion, at that time stick 20 and pitchSection device 22, has inserting board 17, vis-a-vis the back restYou attach to adjustment possible headrest base material 7 and facilities are done.