Photosensitive drum for electrostatic copying apparatus

A photosensitive drum assembly capable of being, as a unit, mounted on and detached from an electrostatic copying apparatus, said assembly comprising:

• a cylindrical drum having provided around the outer peripheral surface thereof a photosensitive member, said drum having a center axis and axially opposite ends;
• a pair of flange members fitted over respective said ends of said drum, each said flange member including a disc-shaped portion adjacent a respective end surface of said drum and an integral cylindrical flange portion extending axially from said disc-shaped portion toward the other said flange memeber, said flange portion having an inner cylindrical surface in contact with a respective end portion of said outer peripheral surface of said drum, and said flange portion having an outer peripheral surface having a diameter greater than the diameter of the outer surface of said photosensitive member;
• at least one connecting rod extending through the interior of said drum in a direction parallel to said axis between said disc-shaped portions of said flange members;
• and
• threadable means, associated with opposite ends of said connecting rod, for threadably connecting said disc-shaped members to said connecting rod, and thereby for urging said flange members toward each other, whereby said drum and flange members form a unit which is mountable on and detachable from an electrostatic copying apparatus.