Patent ID: 6494530
Filing Date: 2002-12-17
Classification: A47C

Abstract:
A foldable chair which comprises a seat frame and a back frame constructed to support a fabric seat thereon and a pair of arm resting frames foldably supported between said seat frame and said back frame;wherein said seat frame comprises: two pairs of side frame legs, wherein each said pair of said side frame legs comprises a first side crossed leg and a second side crossed leg pivotally connected together at a crossed point; a pair of front frame legs pivotally connected together at a crossed point; a pair of rear frame legs pivotally connected together at a crossed point; a pair of front upper pivot joints for pivotally connecting two upper ends of said two front frame legs with two upper portions of said first side crossed legs respectively; a pair of front lower pivot joints for pivotally connecting two lower ends of said two front frame legs with two lower portions of said second side crossed legs respectively; a pair of back upper pivot joints for pivotally connecting two upper ends of said two rear frame legs with two upper ends of said second side crossed legs respectively; and a pair of back lower pivot joints for pivotally connecting two lower ends of said rear frame legs with two lower portions of said first side crossed legs respectively, whereby by varying a length of said first and second side crossed legs, said seat frame of said foldable chair is adapted for further extending its shape and size, so as to substantially increase a supporting area of said seat frame; wherein said back frame comprises a pair of inclined back frame legs passing through said two back upper pivot joints respectively, wherein two lower ends of said two back frame legs are respectively extended downwardly to pivotally connected to two coupling joints which are affixed to a lower portion of said two first side crossed legs respectively; wherein each of said arm resting frames comprises a front arm pivotally connected to said front portion of said first side crossed leg, a rear arm pivotally connected to an adequate position of said back frame leg, and a 180Â° folding support joint for pivotally connecting between said front and rear arms in such a manner when said foldable chair is unfolded, said front and rear arms are rotatably formed a horizontally supporting area for supporting a user's arms thereon.