Cord winding assembly with tilt members and window blind using the cord winding assembly

A cord winding assembly, comprising:

• a base comprising a first accommodating portion, a second accommodating portion and a third accommodating portion, said first accommodating portion having a cord hole penetrated through a bottom thereof, said second accommodating portion having a cord hole penetrated through a bottom thereof, said third accommodating portion having a tilt cord hole penetrated through a bottom thereof and being provided with a protrusion, said second accommodating portion being located between said first accommodating portion and said third accommodating portion;
• two rotating members, each said rotating member being a hollow tube body and forming an outer peripheral wall and an inner peripheral wall, said outer peripheral wall of each said rotating member comprising a large-diameter end, a wire guide section and a small-diameter end, said large-diameter end and said small-diameter end of each said rotating member being respectively pivoted on said first accommodating portion and said second accommodating portion of said base, said wire guide section surrounding said outer peripheral wall of said rotating member and being connected to said large-diameter end, said wire guide section converging from said large-diameter end to said small-diameter end, said outer peripheral wall of each said rotating member being recessed in the direction of said inner peripheral wall to form a guide sliding portion, each said rotating member being provided with a guide slider, said guide slider being pivotally set on the associating said guide sliding portion;
• and
• a tilt member, comprising a large-diameter end and a small-diameter end respectively formed at two opposite ends thereof, said large-diameter end comprising a cord guide portion and two cord-tying portions arranged at intervals and a groove radially recessed from the outer periphery of said cord guide portion, each said cord-tying portion being composed of a connecting section and a limiting section, so that a locking section is formed between said connecting section and said limiting section, said small-diameter end comprising two retaining walls located on an outer periphery thereof, said tilt member being pivotally connected to said third accommodating portion of said base, wherein, said two retaining walls of said small-diameter end of said tilt member being blocked by said protrusion of said third accommodating portion of the base after a predetermined pivot.