Drum

Abstract

Drums of thermoplastic synthetic material include a circumferentially extending carrying and transport ring arranged on the drum wall in the vicinity of the upper bottom, and at least one bunghole connection sleeve arranged in a trough-shaped indentation of the upper head of the drum in the area of the rim thereof. An integrally formed stiffening bead is arranged on the inner side of the carrying and transport ring of a drum of the above-described type in the vicinity of a bunghole connection sleeve. A stiffening hump is formed in the upper head of the drum between the stiffening bead of the carrying and transport ring and the bunghole connection sleeves.

1 . A drum of thermoplastic synthetic material, the drum comprising a drum wall and an upper head and a lower bottom, a circumferentially extending carrying and transport ring arranged on the drum wall in the vicinity of the upper head of the drum, and at least one bunghole connection sleeve arranged in a trough-shaped indentation of the upper head in a rim area thereof, wherein a stiffening bead is integrally formed in the vicinity of the bunghole connection sleeve on an inner side of the carrying and transport ring, further comprising a stiffening hump extending integrally upwardly from the bottom section of the indentation of the upper head between the stiffening bead of the carrying and transport ring and the bunghole connection sleeve.  
   
   
       2 . The drum according to  claim 1 , comprising a filling and discharge bung as well as an aerating and venting bung, wherein each bung has a bunghole connection sleeve and is arranged diametrically opposite in indentations of the upper head and in the area of the rim thereof, and stiffening beads arranged opposite the bunghole connection sleeves on the inner side of the carrying and transport ring, and stiffening humps integrally formed upwardly from the upper indentations between the stiffening beads and the bunghole connection sleeves.