An adjustable bed-chair comprising a lower supporting frame, a first horizontal panel adjustable relative to the frame, a second panel pivoted at one end to said first panel and having a central recess opening thereinto from the bottom side. A body supporting assembly comprising a back and head support...http://www.google.es/patents/US4127906?utm_source=gb-gplus-sharePatente US4127906 - Adjustable bed-chair
