Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
  • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
  • B65D17/00—Rigid or semi-rigid containers specially constructed to be opened by cutting or piercing, or by tearing of frangible members or portions
  • B65D17/28—Rigid or semi-rigid containers specially constructed to be opened by cutting or piercing, or by tearing of frangible members or portions at lines or points of weakness
  • B65D17/401—Rigid or semi-rigid containers specially constructed to be opened by cutting or piercing, or by tearing of frangible members or portions at lines or points of weakness characterised by having the line of weakness provided in an end wall
  • B65D17/4012—Rigid or semi-rigid containers specially constructed to be opened by cutting or piercing, or by tearing of frangible members or portions at lines or points of weakness characterised by having the line of weakness provided in an end wall for opening partially by means of a tearing tab
  • B65D17/4014—Rigid or semi-rigid containers specially constructed to be opened by cutting or piercing, or by tearing of frangible members or portions at lines or points of weakness characterised by having the line of weakness provided in an end wall for opening partially by means of a tearing tab and provided with attached means for reclosing or resealing
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
  • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
  • B65D17/00—Rigid or semi-rigid containers specially constructed to be opened by cutting or piercing, or by tearing of frangible members or portions
  • B65D17/28—Rigid or semi-rigid containers specially constructed to be opened by cutting or piercing, or by tearing of frangible members or portions at lines or points of weakness
  • B65D17/401—Rigid or semi-rigid containers specially constructed to be opened by cutting or piercing, or by tearing of frangible members or portions at lines or points of weakness characterised by having the line of weakness provided in an end wall
  • B65D17/4012—Rigid or semi-rigid containers specially constructed to be opened by cutting or piercing, or by tearing of frangible members or portions at lines or points of weakness characterised by having the line of weakness provided in an end wall for opening partially by means of a tearing tab
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
  • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
  • B65D43/00—Lids or covers for rigid or semi-rigid containers
  • B65D43/02—Removable lids or covers
  • B65D43/0235—Removable lids or covers with integral tamper element
  • B65D43/0237—Removable lids or covers with integral tamper element secured by snapping over beads or projections before removal of the tamper element
  • B65D43/0256—Removable lids or covers with integral tamper element secured by snapping over beads or projections before removal of the tamper element only on the outside, or a part turned to the outside, of the mouth of the container
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
  • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
  • B65D51/00—Closures not otherwise provided for
  • B65D51/18—Arrangements of closures with protective outer cap-like covers or of two or more co-operating closures
  • B65D51/20—Caps, lids, or covers co-operating with an inner closure arranged to be opened by piercing, cutting, or tearing
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
  • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
  • B65D2517/00—Containers specially constructed to be opened by cutting, piercing or tearing of wall portions, e.g. preserving cans or tins
  • B65D2517/0001—Details
  • B65D2517/001—Action for opening container
  • B65D2517/0014—Action for opening container pivot tab and push-down tear panel
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
  • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
  • B65D2517/00—Containers specially constructed to be opened by cutting, piercing or tearing of wall portions, e.g. preserving cans or tins
  • B65D2517/0001—Details
  • B65D2517/0022—Means for preventing insects from entering container
  • B65D2517/0025—Means for preventing insects from entering container connected to the rivet and rotated into position, but formed separately from the tab
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
  • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
  • B65D2517/00—Containers specially constructed to be opened by cutting, piercing or tearing of wall portions, e.g. preserving cans or tins
  • B65D2517/0001—Details
  • B65D2517/0031—Reclosable openings
  • B65D2517/004—Reclosable openings by means of an additional element
  • B65D2517/0041—Reclosable openings by means of an additional element in the form of a cover

Definitions

• the present invention relates to a plate with an opening aid for cans.
• coronavirus pandemic has shown how important hygiene is, especially when it comes to infections transmitted through contact and droplets. Beverage cans pass through many hands before reaching the end customer. When drinking, the customer's lips touch parts of the can. If these parts of the can were contaminated during transport, the end customer could become infected.
• closures are known for beverage cans. They can be roughly divided into sliding, clip, twist, and lid closures.
• a sliding closure is characterized by the fact that a locking element is attached to the beverage tab of the can to close the opening.
• US 57 85 199 US 60 98 830 , US 67 22 518 B1 and US 53 51 853
• These sliding closures for beverage cans are revealed.
• US 60 98 830 US 67 22 518 B1 and US 53 51 853
• the closure features rail elements that can accommodate the opening clip of the beverage can, thus stabilizing the closure. By placing the opening clip of the beverage can against the closure mechanism, the closure mechanism itself is pressed against the can. The opening is then sealed.
• US 57 85 199 The closure is pulled through the tab of the opening clip and folded over, with a plate provided which closes the opening of the beverage can.
• a plate with a lever-operated opening aid for cans has already been proposed ( DE 10 2020 121 789 A1 ), which is attached to the can by means of a rivet, wherein the metal plate has a top and a bottom surface, a central and a radial rim, and two lateral rims, each connecting an end of the central and radial rims, wherein a receptacle for the rivet is provided on the central rim, a grooved anchor is formed on the radial rim, which forms an angled sliding rail directed away from the bottom surface and engages in a groove of the can, at least one elongated projection is formed on the top surface, which is at least 5 mm long and is arranged such that it can engage with the lever of the can and serves as an opening aid, and wherein at least one rotating aid is arranged on the top surface, which has at least one stud.
• difficulties may arise with regard to a stable fit of the plate against the lid, which could allow dirt to get between the lid and the plate.
• the invention is based on the objective of providing a plate with an opening aid for cans, which is easy and inexpensive to manufacture and protects the opening of the can from germs that get onto the surface of the can during transport and sale.
• the invention thus relates to a plate with an opening aid for cans, comprising a lever that is attached to the can by means of a rivet.
• the plate has a top and a bottom surface, a central and a radial rim, and two lateral rims.
• the lateral rims each connect one end of the central and radial rims.
• the plate is slightly convex, and the center point of a sphere of curvature, which approximately describes the curvature, lies approximately on the longitudinal axis of the can and distal to the bottom surface.
• the radial rim The plate extends over a partial circle with an angle of at least 150°, with a receptacle for the rivet provided at the central edge.
• Each lateral edge has a reinforced rim that stiffens the plate.
• a grooved anchor is formed at the radial edge, forming an angled guide rail directed away from the underside, which engages in a groove of the can.
• At least one elongated, curved, approximately crescent-shaped projection is formed on the upper surface, arranged to engage with the can's lever and serve as an opening aid, with the projection having a gradually decreasing incline towards each end.
• the projection is approximately concentric to the rivet receptacle and is at least 5 mm long.
• At least one rotating aid comprising at least one stud, is arranged on the upper surface. The corners of the lateral edges adjoining the radial edge form radial projections, thus creating corner horns.
• the plate is made of metal.
• the corner horns extend the radial rim, further stiffening the plate. Nevertheless, the drinking opening remains unobstructed if the plate is not perfectly aligned.
• the curvature of the platelet which can also be described as its curvature, is represented by a sphere of curvature. However, in contrast to a spherical shape, the curvature can also be egg-shaped or oval.
• the plate is slightly curved or domed, it is stable and fits snugly against the can lid, minimizing the amount of dirt that gets between the plate and the lid. Despite its large surface area, the plate can be moved with minimal effort. This is further facilitated by its curved shape, which is adapted to the top of the can, ensuring that no part of the plate exerts high pressure against the can's surface.
• the sliding rail is preferably positioned in a groove on the can in such a way as to prevent excessive friction between the remaining area of the plate and the lid's surface.
• the raised section is also referred to as the opening aid. Because it slopes down on both sides, the direction of rotation of the plate to open the can is irrelevant.
• the opening aid is longer and crescent-shaped compared to prior art opening aids, it can also be taller to generate greater leverage.
• the crescent shape allows the opening aid to slide easily under the lever.
• the length of the opening aid ensures that its inclination is so shallow that it can be slid under the lever with minimal force and does not cause the lever to swing out of position.
• the longer the opening aid the shallower the incline for a given height.
• the shallower the incline the easier it is to slide the opening aid under the lever.
• the grooved anchor has a centering function, allowing the rivet receptacle at the central edge to have slightly more play. This makes the plate easier to rotate.
• the grooved anchor conforms to the groove and slides along it when the plate is rotated.
• the reinforced edges stiffen the plate and provide a visual aid to see where the plate begins, in order to grasp it accurately and turn it.
• the plate is made of metal, preferably aluminum, it can be manufactured very thin.
• the stiffeners described above ensure that it remains rigid and does not bend, for example, when the can is turned upside down. Furthermore, the stiffeners minimize friction, allowing the plate to be rotated more easily.
• the plate is made of metal, specifically aluminum, it can be manufactured from the same material as the can itself. This simplifies the recycling process and protects the environment.
• the plate can rotate around the rivet.
• the plate's movement is guided by the receptacle that rests against the rivet. This guidance at the rivet allows for easy rotation.
• the plate is suitable for sealing the opening of the can, for example, to prevent insects or other dirt from entering the beverage can. Furthermore, carbonated drinks retain their flavor longer because the carbon dioxide cannot escape as quickly through the air.
• the opening aid can slide under the can's lever and lift it slightly. This makes opening the can easier.
• the plate Due to its flat, plate-like design, it does not protrude beyond the rim of the can, thus allowing the can to remain stackable.
• the plate can also be applied to an otherwise closed can during its manufacture. Shipping cans grouped on multiple pallets is not hindered by the application of a closure to each individual can.
• the grooved anchor extends over the entire length of the radial edge of the plate. This ensures a uniform load distribution along the entire length of the radial edge of the plate.
• the groove anchor is preferably adapted to the shape of the groove in the beverage can, both in terms of the groove's circularity and its cross-sectional shape.
• the groove anchor is designed to fit snugly against the inner boundary surface formed by the groove.
• the groove anchor can also be designed to fit snugly against an outward-facing boundary surface of the groove.
• the groove anchor can be adapted to the groove by bending the plate.
• the groove anchor can be a thicker body than the rest of the plate, extending into the groove.
• the plate has a thickness of at least 0.2 mm, at least 0.5 mm, at least 0.75 mm and at least 1 mm.
• the plate With this thickness of the plate, the plate has sufficient stability and not too much material is used, thus keeping costs low.
• the survey has a length of at least 7 mm, at least 10 mm and at least 20 mm.
• the raised section can easily slide under the can's lever and still provide sufficient leverage. Shorter sections would either have an incline that is too steep, preventing the section from sliding under the lever, or they wouldn't be high enough, resulting in insufficient leverage to open the can.
• the elevation can slope uniformly down over a distance of at least 1 mm, at least 3 mm and at least 5 mm on each of the two sides.
• the described path allows the raised section to be gently slid under the lever without requiring excessive force.
• the lever is still raised high enough to then open the can.
• the raised areas have a height of at least 0.25 mm, at least 0.5 mm and at least 1 mm.
• the leverage is sufficient to raise the lever so that a piece of a user's finger can grip underneath it to easily lift the lever to open the can.
• the radial edge is curved in such a way that it forms a partial circle with an angle of at least 200°, at least 250° and at least 300°.
• the plate is particularly stable and, in a corresponding position, the opening of the can is effectively closed, so that even if the can is tilted or rotated, no or only a few drops of the drink leave the can.
• the corner horns can form a projection of at least 2 mm, at least 4 mm and at least 8 mm.
• Corner horns of this length extend the radial rim, further increasing stability, yet a sufficiently large area of the can surface remains so that the opening of the can is completely unobstructed when the plate has been positioned accordingly.
• the lateral edges have a curvature due to the extruded corner horns, and the edge reinforcement is arranged along this curvature.
• edge reinforcements are arranged along the curves, the edge reinforcements themselves are curved. This curvature gives the stiffening two directions, thus stabilizing the plate across its surface, as these two directions span such a surface.
• the edge reinforcement is designed as a thickening of the material at this point and preferably has at least 1.2 times, at least 1.5 times and at least 2.0 times the thickness of the other platelets.
• Such a thickness of edge reinforcement is a good compromise between sufficient stiffening of the plate and saving material.
• the turning aid has at least 3 studs, at least 5 studs and at least 10 studs.
• knobs of the turning aid can be designed in top view as a rectangle with strongly rounded corners, wherein the rectangle has an aspect ratio of at least 1:1, at least 1:2 and at least 1:4.
• Nubs with this aspect ratio in top view are stable so that they do not break off when interacted with a user's finger, and they also provide good haptic feedback for the user, who then recognizes the radius in which they have to rotate the tile.
• the underside is coated with a plastic.
• the coating is typically made of polyethylene terephthalate (PET), polytetrafluoroethylene (PTFE), polypropylene (PP), polyethylene (PE), high-density polyethylene (HDPE), low-density polyethylene (LDPE), or linear low-density polyethylene (LLDPE).
• PET polyethylene terephthalate
• PTFE polytetrafluoroethylene
• PP polypropylene
• PE polyethylene
• HDPE high-density polyethylene
• LDPE low-density polyethylene
• LLDPE linear low-density polyethylene
• the top side is printed.
• a printed surface can be designed in such a way that features are applied to it which are integrated with a visual recognition system, for example to transport the cans using a transporter.
• these tiles may also contain instructions, motifs, logos or other elements.
• a can system comprises a can and a can-opening plate as previously described, wherein the can-opening plate is attached to the can.
• a method for manufacturing a previously described can system is characterized in that first the can is manufactured, then the plate is placed on the groove, then the lever is placed on the groove, and in the last step the groove is closed.
• a plate 1 for a can 2, in particular a beverage can, is described below ( Figs. 1-6 ).
• the can 2 has a substantially cylindrical shape.
• One side of the cylinder, referred to as the head plate 22, has an opening 3 in the can 2.
• a rivet 4 to which a lever 11 is attached.
• This lever is designed to press in part of the lid of the can 2.
• a pressed-in lid section 12 is then located inside the can 2.
• a rivet head 14 is formed at the end of the rivet 4.
• the rivet head 14 is a flat, usually round plate, which is arranged at the end of the rivet 4 and has a larger radius than the rivet 4.
• the rivet head 14 prevents the lever 11 from being unintentionally released.
• the can 2 has a groove 5 and a raised rim 6 at its edge.
• the plate 1 has a central rim 7, a radial rim 8 and two lateral rims 18.
• the plate 1 has corner squirrels 13 which form a radial projection at the corners of the lateral edges 18 towards the radial edge 8.
• the plate 1 has an edge reinforcement 21, which is formed on the side edges 18 and stiffens the plate 1.
• the plate 1 has a slight curvature and the center point of a curvature sphere, which describes the curvature, lies approximately on the longitudinal axis of the can 2 and is arranged distally to the underside of the plate 1.
• plate 1 has approximately the shape of a circular sector with a radius r and a central angle ⁇ around a circle center M ( Fig. 1 ).
• the shape of plate 1 is chosen such that the central angle ⁇ is approximately 200°.
• plate 1 is designed as a protective cover and will also be referred to as such in the following.
• the center of the circle M lies on a central edge 7 of the protective cover 1 and is arranged such that it is congruent with the center of the rivet 4 of the beverage can 2 when the protective cover 1 is placed on the beverage can 2.
• the central edge 7 forms a circular segment-shaped recess 9 for the rivet 4.
• the radius of the circular segment-shaped recess 9 corresponds at least to the radius of the rivet 4.
• the protective cover 1 when viewed from above, is only as large as is necessary for the function of the closure, to cover the opening 3 of the beverage can 2, and to provide sufficient stability.
• the protective cover 1 is a mass-produced item. The smaller it is, the cheaper it is to manufacture.
• the radius r of the circular sector corresponds essentially to the usual distance between the rivet 4 and the groove 5 of the beverage can 2.
• the radius r of the circular sector is smaller than the usual distance between the rivet 4 and the raised rim 6 of the beverage can 2.
• the protective cover 1 has an opening aid 15.
• the opening aid 15 is a raised section pointing upwards, away from the can 2. It is located approximately halfway between the central edge 7 and the radial edge 8 of the closure.
• the opening aid 15 is designed as a raised section which, as in the embodiments described above, has two edges 17, each approximately in in a tangential direction, i.e., approximately parallel to the radial edge 8. This gives the opening aid 15 a slightly curved, crescent shape.
• Each edge 17 of the opening aid 15 has a substantially uniform inclination that slopes downwards from the center of the opening aid in the direction of the lateral edge 18 until the edge 17 reaches the level of the surface of the plate 1.
• the angle 19 that the edge 17 forms with the surface of the plate 1 is preferably at least 3°, more preferably at least 5°, and most preferably at least 8°. Fig. 3
• the maximum angle 19 is less than 30° and preferably less than 20°. Due to the gradual slope of the edge 17, the opening aid 15 can be pushed under the lever 11 of the can 2 with little effort, whereby the lever 11 is lifted upwards by the opening aid 15.
• the opening aid 15 wedges itself between the surface of the can 2 and the lever 11.
• the opening aid 15 In principle, other geometries of the opening aid 15 are also conceivable, provided they have at least one inclined side that is formed perpendicular to the radial direction of the can 2.
• the opening aid 15 is stamped.
• the protective cover 1 is formed at its radial edge 8 with a groove anchor 10, which can engage in the groove 5.
• this groove anchor 10 is formed by a bend in the radial edge 8, wherein the radial edge 8 is bent downwards in such a way that it engages in the groove 5 of the can 2 ( Figs. 1-5 , Fig. 6e, 6h ).
• the width of the curved section corresponds approximately to the depth of groove 5.
• the radial edge 8 can also be doubly curved and form a V-shape in side view.
• the groove anchor 10 here also has a projection extending towards the raised edge 6 ( Fig. 6f ).
• the groove anchor 10 is bent in three places ( Fig. 6g ).
• the groove anchor 10 here has an additional projection pointing towards the central edge 7 ( Fig. 6a ).
• the groove anchor 10 can alternatively adapt to the shape of the groove 5 ( Figs. 6a-6d and 6g ).
• the groove anchor 10 protrudes from the underside of the protective cover 1 due to additional material.
• the protective cover 1 has a thickening at this point. This thickening can be made of the same material as the rest of the protective cover 1 or of a different material.
• the plate 1 has a grip area which is arranged on the adjacent other lateral edge 18 ( Figs. 1-5 In the present embodiment, this gripping area is formed by a number of slightly upwardly projecting, embossed knobs 20. These thus form a corrugated surface, so that a sliding torque can be easily transferred to the plate 1 with a finger at the gripping area in order to rotate it and push it under the lever 11 with the opening aid 15.
• the grip area can also be roughened in a different way, such as by sandblasting this section.
• the grip area is preferably significantly less raised than the opening aid 15, making it possible to insert the plate 1 under a lever 11 in such a way that the grip area is first pushed under the lever 11 until the plate 1 is positioned so that the lever 11 is located in the area between the grip area and the opening aid 15.
• a method for manufacturing a previously described can system is characterized in that first the can 2 is manufactured, then the plate 1 is placed on the rivet 4 and subsequently the lever is placed on the rivet before the rivet 4 is closed in the last step.
• the opening aid 15 can also be designed in a wedge shape.
• the studs 20 are stamped into the plate as negative studs.
• the 20 studs correspond to a structure, for example a letter, a number or a symbol in Braille.

Landscapes

• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Details Of Rigid Or Semi-Rigid Containers (AREA)
• Containers Opened By Tearing Frangible Portions (AREA)
• Devices For Opening Bottles Or Cans (AREA)

Priority Applications (3)

Applications Claiming Priority (2)

Publications (2)

Family

ID=84819843

Family Applications (1)

Country Status (19)

Families Citing this family (1)

Family Cites Families (34)

• 2021
  • 2021-12-14 AT ATA60309/2021A patent/AT525699B1/de active
• 2022
  • 2022-12-12 MX MX2024007331A patent/MX2024007331A/es unknown
  • 2022-12-12 WO PCT/EP2022/085448 patent/WO2023110779A1/de not_active Ceased
  • 2022-12-12 AU AU2022415395A patent/AU2022415395B2/en active Active
  • 2022-12-12 CN CN202280091232.5A patent/CN118679104A/zh active Pending
  • 2022-12-12 PL PL22836065.7T patent/PL4448403T3/pl unknown
  • 2022-12-12 EP EP22836065.7A patent/EP4448403B1/de active Active
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  • 2022-12-12 JP JP2024536132A patent/JP7823197B2/ja active Active
  • 2022-12-12 ES ES22836065T patent/ES3063038T3/es active Active
  • 2022-12-12 US US18/720,557 patent/US20250058931A1/en active Pending
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• 2024
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