EP0313906A1 - Schraubkappe für den Verschluss eines Behälters - Google Patents

Schraubkappe für den Verschluss eines Behälters Download PDF

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Publication number
EP0313906A1
EP0313906A1 EP88116774A EP88116774A EP0313906A1 EP 0313906 A1 EP0313906 A1 EP 0313906A1 EP 88116774 A EP88116774 A EP 88116774A EP 88116774 A EP88116774 A EP 88116774A EP 0313906 A1 EP0313906 A1 EP 0313906A1
Authority
EP
European Patent Office
Prior art keywords
screw cap
plastic layer
tamper
cap according
screw
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP88116774A
Other languages
German (de)
English (en)
French (fr)
Inventor
Edgar Dipl.-Ing. Linck
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Delmenhorster Kork-Fabrik Arthur Linck & Co KG GmbH
Original Assignee
Delmenhorster Kork-Fabrik Arthur Linck & Co KG GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Delmenhorster Kork-Fabrik Arthur Linck & Co KG GmbH filed Critical Delmenhorster Kork-Fabrik Arthur Linck & Co KG GmbH
Publication of EP0313906A1 publication Critical patent/EP0313906A1/de
Withdrawn legal-status Critical Current

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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
    • B65D41/00—Caps, e.g. crown caps or crown seals, i.e. members having parts arranged for engagement with the external periphery of a neck or wall defining a pouring opening or discharge aperture; Protective cap-like covers for closure members, e.g. decorative covers of metal foil or paper
    • B65D41/32—Caps or cap-like covers with lines of weakness, tearing-strips, tags, or like opening or removal devices, e.g. to facilitate formation of pouring openings
    • B65D41/34—Threaded or like caps or cap-like covers provided with tamper elements formed in, or attached to, the closure skirt
    • B65D41/348—Threaded or like caps or cap-like covers provided with tamper elements formed in, or attached to, the closure skirt the tamper element being rolled or pressed to conform to the shape of the container, e.g. metallic closures
    • 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
    • B65D41/00—Caps, e.g. crown caps or crown seals, i.e. members having parts arranged for engagement with the external periphery of a neck or wall defining a pouring opening or discharge aperture; Protective cap-like covers for closure members, e.g. decorative covers of metal foil or paper
    • B65D41/32—Caps or cap-like covers with lines of weakness, tearing-strips, tags, or like opening or removal devices, e.g. to facilitate formation of pouring openings
    • B65D41/34—Threaded or like caps or cap-like covers provided with tamper elements formed in, or attached to, the closure skirt

Definitions

  • the invention relates to a screw cap for the closure of a container, with a tamper-evident device with predetermined breaking points located in the area of the lower edge of the cap jacket.
  • Screw caps made of metal are known, so-called "pilferproof closures", which have a ring at the lower edge of the cap jacket as tamper-evident protection, which ring is connected to the cap jacket by tearing predetermined breaking webs.
  • the ring separates from the cap jacket due to the tear-off predetermined breaking webs and remains at the mouth of the container.
  • needle-point break-off points form on the predetermined breaking bars, both on the cap and on the ring, which frequently lead to injuries.
  • the ring remaining on a container must be removed in order to reuse the container, which is usually only possible by overcoming the corresponding difficulties.
  • lamellar closures in which the lower edge of the cap jacket is provided with embossing notches oriented perpendicular to the edge, which act as lines of weakness and define predetermined breaking points, which are evenly distributed around its circumference in the lower region of the cap jacket, two of each other Areas of adjacent embossing notches form a lamella or a segment.
  • embossing notches should tear and the individual lamellae or segments bend outwards in order to signal an open container.
  • the invention has for its object to improve a screw cap with tamper-evident for the closure of bottles, wide-mouth bottles and other containers so that it can be opened easily, clearly and without any risk of injury.
  • the screw cap created to solve this problem is characterized in that it is coated with at least one plastic layer in the area of tamper-evident securing.
  • the screw cap according to the invention has the advantage that the adhesive plastic layer covers sharp cutting edges and breaking points after opening the screw cap, so that the risk of injury is reduced to a minimum.
  • the plastic layer can also break or tear in the area of the predetermined breaking points, so that after loosening the screw cap, e.g. from a bottle, the first time it is opened is visually visible.
  • a cap designed in this way can be provided with a preferably transparent plastic layer in the area of tamper-evident securing.
  • the transparent plastic can stretch because it is somewhat tougher and less break-active than the metal of the actual screw cap, so that the plastic layer does not tear.
  • the transparent plastic can be used to visually clearly identify the tamper-proof securing, the undamaged but transparent plastic preventing the risk of injury occurring with conventional lamella closures.
  • the plastic layer can be designed as an outer strapping or casing. However, it is also possible to use the plastic to be placed inside. Furthermore, an arrangement on both sides, both inside and outside, is possible on the screw cap.
  • Each plastic layer, outside and / or inside, can also be at least partially drawn around the lower edge of the tamper-evident device. This arrangement reduces the risk of injury, since edges at the lower edge of the cap shell are practically protected by a covering by means of the plastic layer.
  • Fig. 1 shows a screw cap 1 in a half-sectional view.
  • the screw cap 1 is made in a known manner from aluminum sheet and is used as a so-called guarantee closure for closing containers, for which purpose a tamper-evident device with predetermined breaking points is arranged in the region of the lower edge of the cap shell.
  • tamper-evident protection consists of slit-shaped full cuts 3 running around a circular line, between which tear-off webs 4 remain as predetermined breaking points.
  • vertical incisions 6 are provided, which are arranged distributed uniformly on the circumference of the screw cap. It is common for the full cuts 6 to have five segments or lamellae 7 distributed around the circumference of the screw cap or its tamper-evident device. Between the full cuts 6 and the horizontal full cuts 3, webs 8 remain as predetermined breaking points.
  • the tamper-evident securing essentially consisting of the segments or slats 7 is, as can be seen in FIG. 1, coated on the outside with a plastic layer 9 which is at least partially drawn around the lower edge 5 in order to defuse this edge and to avoid the risk of injury.
  • the covering plastic layer 9 also protects the sharp edges of the tearing off webs 4 and 8 or the cut edges of the full interfaces 6 and 3 in the case of tamper-evident protection damaged by unscrewing a screw cap from a container.
  • FIG. 2 shows the screw cap according to FIG. 1 after unscrewing, in which the segments or lamellae 7 and the full kerf 6 and 3 have deformed.
  • Fig. 2 also shows that the plastic layer 9 is also torn open by the tearing full-cut joints 6, which is particularly visible on the left half of the screw cap shown uncut.
  • Fig. 2 also shows that the full cut 6 is torn further, so that the web 8 still present between the already deformed horizontal cut 3 and the full cut 6 in FIG. 1 is torn off.
  • Fig. 3 shows that marked by encirclement in Fig. 2 Detail “Z" on an enlarged scale.
  • the same components are labeled with the same reference numbers.
  • 3 shows in particular how the plastic layer 9 strapping a screw cap in the area of the tamper-evident securing can also extend into the full-cut joints 3 and 6, in order to later protect sharp edges in the event of tearing predetermined breaking points and deforming tamper-evident tampering and to avoid the risk of injury. It can also be seen how the plastic layer 9 surrounds the lower sharp edge 5 of the tamper-evident device and thereby reduces the risk of injury.
  • Fig. 4 shows a screw cap in half section with damaged tamper-evident protection, which is designed in the form of a ring, already described, connected by horizontal kerfs 3 and intermediate tear-off webs 4 to the cap jacket in the manner of a pilferproof closure.
  • the ring has remained on the neck of the container due to the unscrewing of the screw cap 1a from a container (not shown). All that is visible is the sharp-edged tear-off points 11 that still remain on the lower free edge 10 of the cap casing 2a, which indicate areas in which the strapping plastic layer is torn, from which only the upper part 9a connected to the cap casing 2a is visible. Another part is torn off and remains on the fallen circlip, which is not visible here.
  • Fig. 6 shows a screw cap in an embodiment corresponding to FIG. 4 with a torn retaining ring
  • the Screw cap in turn had an outer plastic layer and an inner plastic layer corresponding to the arrangement shown in FIG. 5, which was divided into parts 9a and 12a remaining on the screw cap by separating the one-piece locking ring.
  • the parts 9a and 12a in turn protect the sharp lower edge and in particular the needle-point tear-off points at which the locking ring has separated from the screw cap.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Closures For Containers (AREA)
EP88116774A 1987-10-29 1988-10-10 Schraubkappe für den Verschluss eines Behälters Withdrawn EP0313906A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3736662 1987-10-29
DE19873736662 DE3736662A1 (de) 1987-10-29 1987-10-29 Schraubkappe fuer den verschluss eines behaelters

Publications (1)

Publication Number Publication Date
EP0313906A1 true EP0313906A1 (de) 1989-05-03

Family

ID=6339348

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88116774A Withdrawn EP0313906A1 (de) 1987-10-29 1988-10-10 Schraubkappe für den Verschluss eines Behälters

Country Status (2)

Country Link
EP (1) EP0313906A1 (enrdf_load_stackoverflow)
DE (1) DE3736662A1 (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012159244A1 (zh) * 2011-05-20 2012-11-29 Nie Pingsheng 安全啤酒瓶盖

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3514004A (en) * 1969-01-09 1970-05-26 Falstaff Brewing Corp Crown closure having protective edge means
FR2310281A1 (fr) * 1975-05-09 1976-12-03 Zapata Industries Inc Capsule de securite pour bouchage de bouteille

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1859147U (de) * 1962-05-26 1962-09-27 Hans Rohrbeck Verschluss aus plastischen kunststoffen fuer flaschen, roehrchen, dosen u. dgl. mit einem halswulstring.

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3514004A (en) * 1969-01-09 1970-05-26 Falstaff Brewing Corp Crown closure having protective edge means
FR2310281A1 (fr) * 1975-05-09 1976-12-03 Zapata Industries Inc Capsule de securite pour bouchage de bouteille

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012159244A1 (zh) * 2011-05-20 2012-11-29 Nie Pingsheng 安全啤酒瓶盖

Also Published As

Publication number Publication date
DE3736662C2 (enrdf_load_stackoverflow) 1989-09-21
DE3736662A1 (de) 1989-05-11

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