B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
B65H75/00—Storing webs, tapes, or filamentary material, e.g. on reels
B65H75/02—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks
B65H75/18—Constructional details
B65H75/20—Skeleton construction, e.g. formed of wire