Importance

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Abstract

A lidded drum of synthetic material includes a clamping ring of metal for fastening the lid on the upper drum rim, wherein the clamping ring is U-shaped in cross section and engages in the closed state with its upper leg over the lid rim and the lower leg engages under an annular contact surface of a border of the drum wall. The contact surface extends perpendicularly or obliquely relative to the longitudinal axis of the drum. The contact surface is arranged below the upper drum rim and constitutes the upper limitation of an indentation in the upper portion of the drum wall. The lid rim formed by an inner rim, an outer rim, and a connecting ring, has a U-shaped cross sectional profile which is open toward the bottom and includes a sealing bed for placing or foaming a lid seal therein, wherein the lid seal is pressed in the closed state of the drum lid by the clamping force of the clamping ring against the upper lid rim. An annular bead is integrally formed on the connecting leg of the upper and lower legs of the clamping ring, wherein the annular bead is directed radially inwardly and, when the clamping ring is closed, the annular bead rests in a positively engaging manner against the outer rim of the lid for securing the lid on the upper lid rim.

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First Claim