Backrest construction for chairs and the like

Claim 1

A BACKREST CONSTRUCTION FOR CHAIRS AND THE LIKE COMPRISING IN COMBINATION: A LONGITUDINALLY CURVED BACKREST STRUCTURE CONNECTABLE TO A CHAIR ASSEMBLY; A LONGITUDINALLY CURVED OUTER PANEL FOR COVERING THE REAR OF SAID BACKREST STRUCTURE; SAID BACKREST AND PANEL HAVING DIFFERENT DEGREES OF CURVATURE AND AT LEAST ONE OF THE SAME BEING RESILIENTLY DEFORMABLE BY FLEXING, TO CONFORM ITS CURVATURE TO THAT OF THE OTHER; MEANS DEFINING AT LEAST ONE RECESS IN ONE OF SAID BACKREST AND PANEL; AT LEAST HOOKING MEMBER OPERATIVLEY SECURED RELATIVE TO THE OTHER OF SAID BACKREST AND PANEL; EACH SUCH HOOKING MEMBER SHAPED AND LOCATED SO AS TO BE INSERTABLE WITHIN ONE SUCH RECESS TO ENGAGE THEREWITH; WHEN SAID BACKREST AND PANEL ARE RESILIENTLY FLEXED INTO CONFORMITY WITH EACH OTHER; SAID HOOKING MEMBER HOLDING THE RESILIENTLY CONFORMING BACKREST AND PANEL CLOSELY TOGETHER WHEN SO ENGAGED WITH SAID RECESS, AND SAID RESILIENT FLEXING SIMULTANEOUSLY HOLDING SAID HOOKING MEMBER AND RECESS IN FIRM ENGAGEMENT WITH EACH OTHER; AND MEANS FOR MAINTAINING SAID HOOKING MEMBER AND RECESS IN ENGAGEMENT, TO RETAIN SAID PANEL IN PLACE AGAINST SAID BACKREST.