Drum for fixing sheet-type member
AssigneeFuji Photo Film Co., Ltd.
InventorTakashi Fukui
Life of this patent
Estimating the term…
Abstract
A printing plate is only guided by and wound around peripheral surfaces of cylinders. The cylinders are disposed along an axis of a rotating shaft at predetermined intervals, and support the entire printing plate with substantially equal balance. The printing plate has a degree of firmness, and thus, the printing plate can hold itself in a substantially cylindrical shape even if it is merely rolled in the air. Therefore, the whole printing plate can be accurately wound and held onto a peripheral locus of a predetermined radius coaxial with the rotating shaft merely by disposing guide members as auxiliary guides for positioning and winding parts of the printing plate.
Claims5
A skeleton drum around which a sheet can be wound and fixed, the drum comprising:
- (a) a rotating shaft;
- (B) a plurality of wide cylindrical supports, each support having a support surface for supporting the sheet and being arranged so as to be coaxial with the rotating shaft such that an interval, which is smaller than a width of each said wide cylindrical support, is formed between the supports;
- and
- (C) a plurality of chucks for pressing a leading edge and a trailing edge of the sheet toward the rotating shaft.
Dependencies are inferred from the claim text.