APPARATUS TO CONVERT DENTAL CHAIR TO SPLIT BACK

摘要

A dental chair conversion apparatus capable of use as a lounge-type chair and having an adjustable head rest mounted on an elongated plate slidable in the keyway of a conventional support member carried on the frame portion of the dental chair which supports the chair back. A latch is mounted through the ears provided on the support member and in the preferred embodiment the elongated plates has a rack formed thereon and the latch has a projection formed for releasably engaging the rack in ratchet fashion and in an alternative embodiment the elongated plate has a series of holes formed along its length thereon and the latch has a tooth formed for selectively engaging the holes to thereby permit manual adjustment of the height of the head rest.