A reclining chair includes a securing mechanism used for releaseably securing an angularly displaceable back; the back has a support rod pivoted thereto; the mechanism includes first and second rotary shafts, first and second pedals and first and second reels respectively secured on the shafts, a string...http://www.google.es/patents/US7011362?utm_source=gb-gplus-sharePatente US7011362 - Structure of a securing mechanism for a back of an adjustable reclining chair
Structure of a securing mechanism for a back of an adjustable reclining chair