Patent ID: 7389887

Claim:
A foldable shelf, comprising: an upper shelf frame comprising a plurality of elongated upper folding members each having an inner edge pivotally connected with each other in such a manner that said upper folding members are able to be folded to an overlapped condition and to be unfolded to a planar condition; a lower shelf frame comprising a plurality of elongated lower folding members each having an inner edge pivotally connected with each other in such a manner that said lower folding members are able to be folded to an overlapped condition and to be unfolded to a planar condition; two side frames each having an upper portion pivotally connected with said upper shelf frame and a lower portion pivotally connected with said lower shelf frame to form a rectangular frame structure by said upper shelf frame, said lower shelf frame and said two side frames, wherein each of said side frames comprises a plurality of joint members provided on said upper portion and said lower portion respectively for pivotally connecting with said respective upper and said lower folding members; and a folding arrangement operatively provided between said upper shelf frame and said lower shelf frame to operate said foldable shelf to move between a folded position and an unfolded position, wherein at said unfolded position, said upper and said lower folding members are pivotally downwardly unfolded and extended to said planar condition about said corresponding joint members in which said upper and said lower folding members are substantially supported and extended across said two side frames in a secure manner, wherein at said folded position, said upper and lower folding members are pivotally and upwardly folded about said corresponding joint members to overlap with each other to minimize a distance between said two side frames so as to fold up said foldable shelf into a compact size, wherein said folding arrangement comprises two connecting guiders spacedly extended between said upper shelf frame and said lower shelf frame for vertically shifting said upper shelf frame and said lower shelf frame between said folded condition and said unfolded condition in a coordinated manner, wherein a height of each of said connecting guiders is substantially equal to a vertical distance between said upper shelf frame and said lower shelf frame so as to minimize an overall size of said foldable shelf, wherein said folding arrangement further comprises two reinforcement sliders, each of which is pivotally coupled with said two side frames and slidably mounted along said connecting guiders respectively, adapted to fold said foldable shelf in said foldable position and stabilize said foldable shelf in said unfolded position.