Patent ID: 8459665

Claim:
A foldable stroller frame comprising: a seat frame assembly; a leg tube assembly including a front leg tube, a rear leg tube, and a pivot joint connected between said front and rear leg tubes and connected pivotally to said seat frame assembly; a handle tube; a link connected pivotally to said handle tube at one end thereof and to said pivot joint at the other end; two supporting tubes connected respectively to said seat frame assembly and said leg tube assembly; and a drive member connected pivotally among said rear leg tube, said handle tube, and said supporting tubes, in such a manner to allow for rotation; wherein, when said handle tube is rotated relative to said drive member, said drive member is activated to result in rotation of said seat frame and leg tube assembly, and said stroller frame is converted between unfolded and fully folded states; wherein one of said supporting tubes is connected pivotally to said front leg tube, and the other of said supporting tubes is connected fixedly to said seat frame assembly.