Patent ID: 6237993
Filing Date: 2001-05-29
Classification: A47C

Abstract:
A foldable frame for beach chair, comprising:a pair of front frame legs pivotally connected with each other in a cross manner to form a pivotal ""X"" structure;a pair of back frame legs pivotally connected with each other in a cross manner to form a pivotal ""X"" structuretwo pairs of side frame legs, each pair comprising a first side frame leg and a second side frame leg pivotally connected with each other in a cross manner to form a pivotal ""X"" structure;a pair of front lower frame joints for pivotally connecting two lower ends of said two front frame legs with two lower front ends of said side frame legs respectively;a pair of back lower frame joints for pivotally connecting two lower ends of said two back frame legs with two lower back ends of said side frame legs respectively;a pair of front upper frame joints for pivotally connecting two upper ends of said two front frame legs with two upper front ends of said side frame legs respectively;a pair of back upper frame joints for pivotally connecting two upper ends of said two back frame legs with two upper back ends of said side frame legs respectively; anda pair of foldable supporting arms each having a pivot end pivotally connected with one of said two crossed side frame legs of said respective pair of side frame legs in such a manner that a supporting end of each of said supporting arms is extended to bias against said other side frame legs of said respective pair of side frame legs when said foldable frame is unfolded to stretch out, wherein said two pivot ends of said two supporting arms are pivotally connected to upper portions of said two first side frame legs, which are frontwardly extending upwardly, respectively, wherein said two supporting ends of said two supporting arms are suspended downwardly in such a manner that each of said two supporting arms has a length and vertically presses against said two second side frame legs respectively when said foldable frame is unfolded to stretch out.