| 摘要 |
A plastic blow molded drum (24) has unique top (30) and bottom (34) structure providing protection and strength for the drum (24) and attachments. An integrally formed top structure (30) with a sufficiently deep recess (46) provides protection for drum inserts and associated closures. Additionally, the bottom structure (34) includes a sump (130) and structural member (168) formed by the pinched-off parisan during the blow molding process. The drum (24) has a top wall (44), a cylindrical side wall (26), and a bottom wall (58) defining an open interior. The protective recess (46) may suitably be formed by the chime (40) and/or further downward recessed portions (46) of the top wall (44) such that the first fitting (50), the second fitting (85), and the closure (60), including the uppermost portion of the closure (60) are all below the top edge of the chime (40).
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