Patent ID: 6349188
Filing Date: 2002-02-19
Classification: F16D,G03G

Abstract:
A driving rotatable member for an electrophotographic image forming apparatus for forming an image on a recording material, wherein said apparatus includes a motor for generating a rotational driving force for rotating an electrophotographic photosensitive drum, said driving rotatable member comprising:(a) a driving force receiving portion for receiving the driving force from said motor; and (b) a twisted hole formed in a shaft integrally molded with said driving rotatable member and projected therefrom at a central portion thereof, said twisted hole having a non-circular cross-section with a plurality of corner portions, wherein said twisted hole is engageable with a twisted projection provided at a longitudinal end of said electrophotographic photosensitive drum and having a non-circular cross-section with a plurality of corner portions.