| 摘要 |
<p>The invention provides a blow-moulded plastic drum having a drum opening and a lid adapted to be mounted thereon, an outwardly directed flange molded directly from the drum wall and mating with a corresponding flange on the lid, said outwardly directed flange being spaced below the rim of the drum opening, said lid having an inner wall for insertion into the drum opening to a point below the outwardly extending flange on the drum wall and an outer wall carrying said corresponding flange, said lid defining between said inner and outer walls and with the rim of the drum opening a space for receiving a sealing ring when said flanges are held in mating engagement by means of a tensioning ring, and radially extending stiffening ribs between the inside of said inner wall and a bottom recessed wall of the lid, said inner wall of the lid extending alongside the drum wall when the lid is inserted whereby the inner wall of the lid acts as a reinforcing member to prevent deformation of the drum opening.</p> |
