초록 ▼

A can lid (1) with a re-closable opening (11) includes an opening region or a closure cover (11), bounded by a peripheral tear-open notch (4), and a lever member intended for breaking through the tear-open notch. Adjacent to the tear-open notch (4), the outer rim of the closure cover (11) is non-pos

A can lid (1) with a re-closable opening (11) includes an opening region or a closure cover (11), bounded by a peripheral tear-open notch (4), and a lever member intended for breaking through the tear-open notch. Adjacent to the tear-open notch (4), the outer rim of the closure cover (11) is non-positively connected to a collar part (5) of a first plastics material. The collar part is assigned a cover receiving part (10), of a second plastics material, which is outside the opening region and adjacent to the tear-open notch and is non-positively connected to the cover area, wherein the collar part engages over the cover receiving part. Formed between the collar part (5) and the cover receiving part (10) is a sealing snap-in locking connection with a peripheral domed rib and a complementarily formed recess.

대표청구항 ▼

1. A can lid having a reclosable opening, having an opening region (11) bounded by a peripheral tear notch (4) provided in the can lid;as well as having a two-armed lever member intended for piercing the tear notch (4);which is connected to a pull tab (15), on the one hand, and engages at the openin

1. A can lid having a reclosable opening, having an opening region (11) bounded by a peripheral tear notch (4) provided in the can lid;as well as having a two-armed lever member intended for piercing the tear notch (4);which is connected to a pull tab (15), on the one hand, and engages at the opening region (11) of the lid surface (3), on the other hand, and is supported via a bearing translating the opening force applied to the pull tab (15);wherein the opening region (11) is formed as a closure lid and is connected to a collar part (5) composed of a first plastic material in a force-transmitting manner at its outer margin adjacent to the tear notch (4);wherein a lid receiving part (10) composed of a second plastic material is associated with the collar part (5) and which lid receiving part (10) is connected to the lid surface (3) in a force-transmitting manner outside the opening region (11) and adjacent to the tear notch (4);wherein the collar part (5) engages over the lid receiving part (10) and a sealing snap-in latching connection having a peripheral coupling rib (9) and a cut-out (12) shaped in complementary form thereto is formed between the collar part (5) and the lid receiving part (10); andwherein the pull tab (15) is fastened radially outside of the lid receiving part (10) to a fixing region (13) of the collar part (5) and the two-armed lever member is formed for piercing the tear notch (4) by a peripheral part region of the collar part (5) associated with the fixing region (13). 2. A can lid in accordance with claim 1, wherein a pivot tab connection (16) is provided opposite the fixing region (13) between the collar part (5) and at least one anchorage element (14) provided at the lid surface (3), wherein the anchorage part (14), the pivot tab connection (16) and the collar part (5) comprise the same plastic material. 3. A can lid in accordance with claim 1, wherein the pull tab (15) composed of a third plastic material lies on the collar part (5) in the state of rest and extends from the fixing region (13) approximately up to the oppositely disposed inner margin of the collar part (5),wherein the elasticity of the material of the pull tab (15) is larger than the elasticity of the material of the lid receiving part (10) which is in turn more elastic than the material of the collar part (5). 4. A can lid in accordance with claim 1, wherein holes (7) or apertures are provided in the lid material respectively distributed over the periphery for the force-transmitting connection of the collar part (5) to the metallic opening region (11) and of the lid receiving part (10) to the lid surface (3) and these holes (7) or apertures are overmolded by the respective plastic material in a manner engaging over the margin in a gas-tight manner at both sides of the lid material (3, 11). 5. A can lid in accordance with claim 4, whereinthe end surfaces and the adjacent marginal regions of the holes (7) or apertures are overmolded by a fourth plastic material in the form of an elastic sealing material (8); and wherein this sealing material (8) is set under a preload by the plastic material of the collar part (5) or of the lid receiving part (10) surrounding said sealing material and bonding to it. 6. A can lid in accordance with claim 4, wherein the holes (7) or apertures are provided for connecting the lid receiving part (10) and the lid surface (3) at the base of a substantially U-shaped ring groove (17) extending to the inner can space. 7. A can lid in accordance with claim 1, wherein grooved recesses (18) are provided in the opening region (11) and in the lid surface (13) for the force-transmitting connection of the collar part (5) to the metallic opening region (11) and of the lid receiving part (10) and of the anchorage part (14) to the lid surface (3); and wherein the collar part (5), the lid receiving part (10) and/or the anchorage part (14) are fixed in a shape-matched and force-transmitting manner in the recesses (18) by an injection molding process. 8. A can lid in accordance with claim 7, wherein the grooved recesses (18) are provided with undercuts (19) and/or welded metallic retaining elements (20). 9. A can lid in accordance with claim 2, wherein the pivot tab connection (16) includes a two-limbed film hinge (21) and a kink spring element (22) which is formed between the limbs and which holds the pivoted open closure lid (5, 11) in an obtuse-angle open position. 10. A can lid in accordance with claim 1, wherein the peripheral coupling rib (9) is provided at the collar part (5) and the cut-out (12) of complementary shape is provided in the lid receiving part (10). 11. A can lid in accordance with claim 1, wherein the pull tab (15) is held by the collar part (5) spaced part with respect to the metallic opening region (11) and the pull tab (15) can be gripped by being engaged beneath and actuated by an opening finger due to its spacing. 12. A can lid in accordance with claim 11, wherein the pull tab (15) is designed in ring form. 13. A can lid in accordance with claim 1, wherein at least one visible element is provided between the lid receiving part (10) and the collar part (5) whose structure and/or whose appearance and/or whose position is necessarily changed by a first-time opening procedure of the collar part (5). 14. A can lid in accordance with claim 1, wherein the can lid further includes a bead margin (2) and the height of the structure comprising the lid receiving part (10), the collar part (5) and the pull tab (15) disposed above the metallic lid surface (3) is smaller than the spacing between the lid surface (3) and the bead margin (2). 15. A can lid in accordance with claim 1, wherein the lid surface (11, 3) associated with the mounting region of the components (5, 10, 14) composed of plastic material is made recessed with respect to the visible surface (23) surrounding it at all sides. 16. A can lid in accordance with claim 1, wherein the lower side of the metallic lid is coated in a bonded manner covering at least the opening region (11) and with this coating being attenuated or made thinner in the region of the tear groove. 17. A can lid in accordance with claim 16, wherein the lower side of the metallic lid is coated over the full area. 18. A can lid in accordance with claim 16, wherein the lower side of the metallic lid is coated with the first plastic material. 19. A can lid in accordance with claim 1, wherein a bonding agent is applied between the respective plastic material and the metallic lid surface. 20. A can lid in accordance with claim 16 further including a lower side plastic coating (26) extending up to the lid margin and serving as a seal in the bead region on a connection with the associated can. 21. A method of manufacturing a can lid having an outer bead margin and having a lid surface which is set back inwardly thereto and in which a reclosable opening is provided, in which the method the lid is punched and a peripheral tear notch is introduced into the lid surface and a ring groove is formed in the lid surface adjacent at least to the outside of the tear notch;wherein a lid receiving part having a first coupling element comprising a plastic material having a predefinable elasticity is subsequently molded with a simultaneous anchorage in the ring groove;wherein the can lid having the lid receiving part is then used as a counter mold and an annular collar part comprising a plastic material not bonding to the material of the lid receiving part is molded and is connected to the lid surface in a force-transmitting manner adjacent to the inner side of the tear notch,wherein this annular collar part is designed so that it engages over the lid receiving part and has a second coupling element shaped in a complementary manner to the first coupling element and both coupling elements form a snap-in latching connection; andwherein a pull tab comprising elastic material is molded which is anchored at one end in a radially outwardly disposed part region of the collar part and extends in the form of a ring tab to the center region of the can lid. 22. A method in accordance with claim 21, wherein the pull tab is molded simultaneously with the collar part. 23. A method in accordance with claim 21, wherein a coupling cut-out aligned substantially perpendicular to the lid surface and designed approximately in U shape in cross-section is formed as the first coupling element and a coupling rib of complementary shape is formed as the second coupling element. 24. A method in accordance with claim 21, wherein simultaneously with the formation of the peripheral groove in the lid surface, holes or apertures are punched, distributed over the periphery, in the base wall of the peripheral groove and in the region adjacent to the tear notch for fastening the collar part, said holes or apertures being interspersed by the respective associated plastic materials for the lid receiving part and the collar part so that the regions adjacent to the holes or apertures are embedded in the respective plastic material at both sides of the lid surface. 25. A method in accordance with claim 24, wherein an elastic sealing material is molded about the end faces of the holes or apertures as well as their adjacent marginal regions before the injection of the collar part and before the injection of the lid receiving part, wherein this sealing material is connected to these materials and being set under preload on the injection of the materials for the collar part and the lid receiving part. 26. A method in accordance with claim 21, wherein a peripheral groove is also formed adjacent to the tear notch at the inner side in the material of the opening region simultaneously with the formation of the peripheral groove disposed outside the tear notch in the lid surface and both peripheral grooves are provided with undercuts and/or retaining elements; andwherein the materials for the collar part and the lid receiving part are anchored in these grooves free of material holes in a shape-matching and force-transmitting manner. 27. A method in accordance with claim 21, wherein an anchorage part disposed diagonally opposite the fixing region for the pull tab and spaced apart from the lid receiving part is molded simultaneously with the lid receiving part which is connected to the lid receiving part via a pivot tab process and is composed of the same material. 28. A method in accordance with claim 27 further including an injection process that establishes the mechanical connection between the anchorage part and the lid surface and the connection between the lid receiving part and the lid surface. 29. A method in accordance with claim 28, wherein simultaneously a two-limbed film hinge having a kink spring element formed between the two limbs of this hinge is formed between the anchorage part and the lid receiving part at the same time the pivot tab is formed. 30. A can for packaging flowable or pourable products, wherein the can is closed by a can lid having a reclosable opening, having an opening region (11) bounded by a peripheral tear notch (4) provided in the can lid;as well as having a two-armed lever member intended for piercing the tear notch (4);which is connected to a pull tab (15), on the one hand, and engages at the opening region (11) of the lid surface (3), on the other hand, and is supported via a bearing translating the opening force applied to the pull tab (15);wherein the opening region (11) is formed as a closure lid and is connected to a collar part (5) composed of a first plastic material in a force-transmitting manner at its outer margin adjacent to the tear notch (4);wherein a lid receiving part (10) composed of a second plastic material is associated with the collar part (5) and which lid receiving part (10) is connected to the lid surface (3) in a force-transmitting manner outside the opening region (11) and adjacent to the tear notch (4);wherein the collar part (5) engages over the lid receiving part (10) and a sealing snap-in latching connection having a peripheral coupling rib (9) and a cut-out (12) shaped in complementary form thereto is formed between the collar part (5) and the lid receiving part (10); andwherein the pull tab (15) is fastened radially outside of the lid receiving part (10) to a fixing region (13) of the collar part (5) and the two-armed lever member is formed for piercing the tear notch (4) by a peripheral part region of the collar part (5) associated with the fixing region (13). 31. A can in accordance with claim 30, wherein the can is for the packaging of beverages. 32. A can in accordance with claim 30 further including a can base, wherein the can base is inwardly arched in the manner of a dome and is formed for receiving the structure of the lid receiving part, the collar part and the pull tab disposed above the can lid; and in that the lid cover has a peripheral marginal region free of structures.