Exemplary embodiments provide a seal between an open body end of a container body and an edge of a lid which is pressable into the open end of the body in a sealing manner, both made from sheet metal, wherein at the end of the body the sheet metal is bent outward by approximately 180° with a bending
Exemplary embodiments provide a seal between an open body end of a container body and an edge of a lid which is pressable into the open end of the body in a sealing manner, both made from sheet metal, wherein at the end of the body the sheet metal is bent outward by approximately 180° with a bending radius, the lid edge, which is separated from a lid surface by a channeled bead, extending axially upward with its radially external defining edge of the bead beyond an axial position of the lid surface and being bent outwards with a radius which is larger than the bending radius at the body end, to form a rolled edge for receiving an annular sealing material filling the rolled edge and extending downwards, wherein a sheet edge of the rolled edge terminates at a radial distance before the defining edge, said distance being dimensioned such that during the sealing process the body end, with the bending radius thereof in contact with the defining edge of the lid, may be inserted between the same and the sealing material into the interior of the rolled edge.
대표청구항▼
1. A container comprising: a container body and a lid and having an open position and a closed position;a seal comprising an unsealed position and a sealed position;the container body further having an upper body end, wherein in the open position the lid is away from the container body and for the c
1. A container comprising: a container body and a lid and having an open position and a closed position;a seal comprising an unsealed position and a sealed position;the container body further having an upper body end, wherein in the open position the lid is away from the container body and for the closed position the lid is insertable into the upper body end to arrive at the closed position of the container;wherein at the upper body end a terminal portion is curved by 180° providing a sharp upper end body curvature;an outer wall of the lid extending axially upward, forming a u-shaped channel, an upper wall end portion of the outer wall is curved radially outwards with a lid curvature being less curved than the sharp upper end body curvature, the upper wall end portion thereby forming a rolling, wherein an annular sealing material is placed in the rolling and extends axially downwards from the rolling:the rolling having a free edge directed towards the outer wall, holding the annular sealing material and terminating at a radial distance from the outer wall, said radial distance in the open position being filled by the sealing material, but allowing the sharp upper end body curvature to enter into an interior of the rolling, wherein the sharp upper end body curvature is in contact with an external surface of the outer wall and the annular sealing material to arrive at the closed position of the container and the sealed position of the seal. 2. The container of claim 1, wherein the upper body end is integrally formed from one sheet metal blank. 3. The container of claim 1, wherein the lid and the upper body end are held in the closed position by corrugations in the outer wall and in a body wall of the container body. 4. The container of claim 1, wherein a bending radius of an outer portion of the terminal portion of the upper body is rolled radially inward such that the portion that is rolled radially inward forms a curl and abuts against a circumferential radial protrusion of a body wall of the container. 5. The container of claim 1, wherein a diameter of the upper body end in an area of the sharp upper end body curvature and a lid edge diameter in an area of a transition between the outer wall and the curved portion are matched, such that in the closed position of the seal the sharp upper end body curvature abuts inwardly at a transition between the outer wall and the curved portion, while being under a radially inward tension. 6. The container of claim 1, wherein the annular sealing material is a swelling compound. 7. The container of claim 6, wherein the annular sealing material is a swelling compound. 8. The container of claim 4, wherein a portion between a support shoulder and the curl is formed into at least one of a radially and axially protruding extension. 9. The container of claim 8, wherein the extension is shaped to provide an opening aid for the lid to transfer the seal and the container into the open position. 10. The container of claim 1, wherein the free edge holding the sealing material and the outer wall of the lid define an opening for the sharp upper end body curvature. 11. The container of claim 1, wherein below the sharp upper end body curvature two parallel extending walls are formed, having a longitudinal extension of more than a diameter of the rolling. 12. The container of claim 11, wherein the two parallel walls are spaced apart for no more than four layers of thickness of a metal sheet thickness of each of the two walls. 13. The contain of claim 1, wherein the terminal portion that is curved by 180° forms a support shoulder radially further out from the 180° curve. 14. The contain of claim 13, wherein the axially downward extending sealing material comes to rest upon the support shoulder at the closed position of the container and the sealed position of the seal.
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