DE8202013U1 - Lid barrel - Google Patents

Description

Lidded barrel

The innovation concerns a lidded barrel made of sheet steel, its The edge of the opening is shaped into an outwardly directed roll bead and its removable hooded lid with one in the Lid outer edge inserted seal rests against the rolled bead, the lid with a lid edge on the one hand and the roll bead on the other hand encompassing the clamping ring is held in the closed position.

Barrel edge, cover and clamping ring are in this way one on top of the other matched that a mutually supportive effect occurs in the direction of tightness and stability, so that such equipped drums for the transport of dangerous filling goods are approved. Up to this admission there were certain To overcome difficulties in order to prevent sheet metal deformation and, consequently, leaks. There were amplified Clamping rings are used, uie oppose the deformation forces with greater resistance. Still, trots stayed higher Material weight of the clamping ring seat endangered by impact loads, so that airtight and liquid-tight storage is an option remained put.

One has therefore switched to equipping the clamping ring with an additional web approach at the bottom, which is on the outside the barrel is tight and smooth. The base of the web extends so far down that it reaches the height of the the downward-facing cover retraction is sufficient. This is supposed to the transfer of the deformation force to the barrel jacket If a full barrel falls onto the closure area, it is weakened to such an extent that the lid pops off or leaks are prevented. But this solution, too, requires increased material expenditure and increased production costs for the tension ring. The positioning of the clamping ring on the lid and barrel is also made more difficult.

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But what is not reinforced / is the area of the roll bead edge / when the clamping ring and cover are removed to remove the contents of the keg through the wide neck of the keg.

The roll bead edge is shaped so that the inner roll bead end edge is brought up to the vicinity of the barrel jacket or in blunt contact with the barrel jacket. This remains the edge of the barrel itself, unstable without cover and clamping ring reinforcement, and thus easily permanently deformable. Once deformed, a gas- and liquid-tight closure can no longer be achieved.

Attempts have also been made to incorporate a separately prefabricated iron ring into the roll bead. But this means one Manufacturing and material costs that are no longer justifiable within the narrowest tolerance limits.

The task at hand is to achieve such a stabilization in the To achieve the opening area of the barrel that a non-destructive seal-proof even when using conventional clamping rings Closure is achieved. In addition, a stable opening edge of the barrel should be achieved with the lid removed.

These tasks will be renewed. solved in that the inner roll bead end edge with the formation of a doubling of the material in the transition area of the straight barrel jacket into the rolled bead bulges at least up to the horizontal The central plane of the roll bead is brought up.

It has been shown that this measure is completely sufficient to withstand the toughest loads and such To bring about dimensional stability of the barrel edge that the barrel can be used as a reusable barrel. According to the innovation The barrel requires less material weight for the jacket, bottom

and lid and has been approved for the transport of dangerous filling goods.

In an embodiment of the innovation, the rolled bead end area can run straight into the rolled bead end edge. This end area has an approximately parallel position to the rectified straight transition part of the barrel jacket.

In the drawing, an embodiment of the innovation is shown, for example.

Fig. 1 shows a detail of the closure area in longitudinal section.

The horizontal center plane of the rolled bead 3 is indicated by the dash-dotted line 8. The opening edge of the barrel jacket 2 is formed into the outwardly directed rolled bead 3, the inner rolled bead end edge 4 over the horizontal Center plane 8 is pulled out. As a result, in the transition area of the straight jacket part of the barrel in the roll beading bulge a doubling of material is formed. The cover 1, which is turned into the barrel opening, supports against the rolled bead 3 via the seal 7 inserted in the outer edge of the lid and is secured with a clamping ring 5 in the locking position secured.

Claims (2)

Protection claims: 1) Lidded barrel made of sheet steel, the opening edge of which is shaped into an outwardly directed roll bead, and its removable slip lid with a seal inserted into the outer edge of the lid rests against the rolled bead, wherein the lid with a clamping ring encompassing the lid edge on the one hand and the roll bead on the other in the closed position is held, characterized in that the inner rolled bead end edge (4) with the formation of a doubling of material in the transition area of the straight barrel jacket (2) into the curvature of the bead is brought up to at least the horizontal center plane (8) of the roll bead (3). 2) lidded barrel according to claim 1), characterized in that the roll bead end region is rectilinear runs into the roll bead end edge (4), and that this end area is approximately parallel to the rectified has a straight transition part of the barrel jacket (2).