| 摘要 |
A reel member (1) has a cylindrically shaped winding core shaft (2) and first and second flanges (11, 12) provided at both ends of the winding core shaft (2). An adhesive film (6) is wound around the winding core shaft (2). Reinforcement sections (3) having a given thickness are provided on the flanges (11, 12) at positions in the vicinity of the winding core shaft (2). Reduced-weight sections (4) are provided on the inside of the flanges (11, 12) at positions located further toward the outer peripheral side of the flanges than the reinforcement sections (3). The thickness of the reduced-weight sections (4) is less than the thickness of the reinforcement sections (3). The reduced-weight sections (4) are formed in a tapered shape and are thinnest on the outer peripheral side of the flanges. Ribs (5) for guiding the adhesive film (6) are provided on the inner portions of the flanges (11, 12). The deflection of the flanges (11, 12) due to the weight thereof is prevented, and as a result, the accuracy of the clearance (C) between opposing ribs (5) is improved. |
