EP0525336A2 - Behälter mit Stopfen - Google Patents

Behälter mit Stopfen Download PDF

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Publication number
EP0525336A2
EP0525336A2 EP92109499A EP92109499A EP0525336A2 EP 0525336 A2 EP0525336 A2 EP 0525336A2 EP 92109499 A EP92109499 A EP 92109499A EP 92109499 A EP92109499 A EP 92109499A EP 0525336 A2 EP0525336 A2 EP 0525336A2
Authority
EP
European Patent Office
Prior art keywords
container
stopper
locking
locking ring
ring
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Withdrawn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
EP92109499A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0525336A3 (enrdf_load_stackoverflow
Inventor
Roland Kneer
Christoph Heiland
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.)
Gaplast GmbH
Original Assignee
Gaplast 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 Gaplast GmbH filed Critical Gaplast GmbH
Publication of EP0525336A2 publication Critical patent/EP0525336A2/de
Publication of EP0525336A3 publication Critical patent/EP0525336A3/xx
Withdrawn legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS 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
    • B65D39/00Closures arranged within necks or pouring openings or in discharge apertures, e.g. stoppers
    • B65D39/16Closures arranged within necks or pouring openings or in discharge apertures, e.g. stoppers with handles or other special means facilitating manual actuation
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS 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
    • B65D39/00Closures arranged within necks or pouring openings or in discharge apertures, e.g. stoppers
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS 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
    • B65D2401/00Tamper-indicating means
    • B65D2401/10Tearable part of the container

Definitions

  • the invention relates to a container with a removable stopper and a tear-off securing ring for securing the original of the contents of the container, in particular tablets, coated tablets and the like.
  • the invention is also suitable for containers which are intended to hold other substances, for example in powder or granule form.
  • EP 0 202 506 A2 discloses a container closure in the form of a stopper, the outer wall of which overlaps the container edge is connected via tear-off webs to a tamper-evident ring which on its inner surface has tabs which are directed obliquely inwards and in the opening direction and which are underneath a flanged edge of the container.
  • This known stopper can only be removed from the container if the retaining ring has been torn off beforehand, so that the undamaged condition of the retaining ring ensures that the container contains the originally filled original preparation.
  • a disadvantage of the known arrangement of container and stopper is that the molding of the locking ring on the stopper requires a complex injection molding tool with sliders engaging behind the obliquely upward-pointing tabs, and that the container must be provided with the flanged edge which engages behind the tabs becomes. This ensures that the tamper-proof container is tamper-evident with considerable costs.
  • the present invention has for its object to develop a container with a plug of the type under consideration so that the tamper-evident content of the container is ensured with simpler, cheaper means.
  • a manufacturing process is to be specified with which the tamper-evidentness of a container is ensured in a simple manner and at relatively low cost.
  • the locking ring is integrally formed on the upper edge of the container and contains a locking section which is directed obliquely inwards in the direction of the plug and which prevents the plug from being removed as long as the locking ring is attached to the edge of the container. It is not necessary to do this on the component not provided with the locking ring, i.e. for the stopper to form special features which interact with the blocking section, as is the case with the flanged container edge in the arrangement known from EP 0 202 506.
  • only one of the two interacting parts namely the container, is to be provided with a feature which ensures tamper-evidentness, namely the securing ring with the blocking section pointing in the direction of the stopper.
  • the manufacture of the container designed in this way is very simple, since the container can be produced by the method according to the invention in such a way that it is injection molded in one piece with the retaining ring, which initially has a continuous cylindrical shape that continues the container wall, whereupon in a subsequent processing step the initially free one End portion of the cylindrical locking ring forming portion is crimped inward so as to form the locking portion.
  • an extremely simple injection molding tool can be used to manufacture the container according to the invention, and the flanging of the blocking section does not pose any difficulties either, since there is sufficient space available for this.
  • the locking ring or its area to be bent inwards can be easily heated with one or two hot stamps before flanging, and cooling can be carried out by means of cold stamps after the bending.
  • the securing ring of the finished container preferably has a cylindrical section which is aligned with the outer surface of the container and which, as mentioned, continues in the bent, obliquely inward blocking section.
  • the angle which the cylindrical section forms with the locking section is expediently of the order of 20 °.
  • the locking section is in the form of a locking ring that is continuous in the circumferential direction.
  • the locking section consists of a plurality of locking tongues cut free from one another, which can be formed by forming corresponding cutouts after the injection molding of the blank or by corresponding cutouts in the injection mold, which is preferable, since this eliminates a separate processing step .
  • the locking ring has a smaller wall thickness than the container. It is preferred that the cylindrical section and the bent blocking section have the same wall thickness throughout, although it is also within the scope of the invention to design these wall thicknesses differently.
  • the plug can be easily inserted into the closed position after filling the container, it is also proposed that To measure the stopper so that its width dimensions, that is to say in the case of a circular cross-sectional shape of the stopper and the container, its diameter is approximately four times the wall thickness of the retaining ring smaller than the outer diameter of the upper edge of the container or the cylindrical section of the retaining ring.
  • the blocking section which is directed diagonally inward, is elastically pressed onto the cylindrical base section of the retaining ring, as a result of which an entry opening is created which essentially corresponds to the outer dimensions of the stopper.
  • the stopper is slightly larger than the free space between the locking section, this is expanded accordingly, which should be possible due to the material of the container and its locking ring.
  • Polypropylene is mentioned as a preferred material, although the invention is of course not restricted to this.
  • the locking section consists of the above-mentioned several locking tongues spaced from one another by cutting, the insertion of the stopper is of course facilitated, but it should be pointed out that through a suitable choice of material and wall thickness, a continuous locking ring also allows the stopper to pass through.
  • the stopper rests on a shoulder which is recessed at the upper edge of the container and which runs around the inside.
  • the remaining wall thickness can be slightly smaller than twice the wall thickness of the locking ring.
  • the stopper have a cylindrical base section, the upper edge of which in the closed position corresponds to the upper edge of the actual container, i.e. of the container without locking ring, not protruding, it being preferred that the two upper edges are substantially aligned with one another.
  • the cylindrical base portion should be followed by a tapered portion that terminates in a flat top surface of the stopper.
  • the tapered portion causes the stopper to have the thickness required for its strength without providing a gripping surface on which the stopper is pulled out of the container could be, which is explained in more detail below.
  • a slide In the flat top surface of the stopper, a slide can be arranged with particular advantage, which in its starting position does not protrude above the top surface, but which can be advanced beyond the edge of the container in order to serve as a handle for removing the stopper in this position.
  • This measure represents a childproof lock that only allows the stopper to be removed from the container if the slide has previously been pushed over the edge of the head surface or the edge of the container, since the part of the stopper that projects beyond the edge of the container is otherwise none at all Grip surface offers.
  • the locking section of the locking ring is directed obliquely at the conical section of the plug, so that the plug is blocked even if it were pulled in the release direction by means of the slide. If the dimensions are taken in such a way that the slide cannot be advanced beyond the edge of the retaining ring in the position of the stopper blocked by the blocking section, this does not offer any appreciable contact surface anyway in order to be able to exert a tensile force on the stopper.
  • the locking ring is first formed on the upper edge of the container without a reduction in cross-section, whereupon a circumferential notch is formed later, which makes the locking ring tearable - expediently by means of a tab.
  • This expediently circumferential notch can be formed in a simple manner by being subsequently pressed in by a corresponding wheel, for which purpose the corresponding area can be heated beforehand. This procedure has the advantage over the shaping of the notch during the injection molding process that the need to arrange corresponding slides is eliminated.
  • FIGS. 1 and 2 show a first embodiment of the container 1 according to the invention and an associated stopper 2.
  • the container 1 has a cylindrical shape with a circular cross section and is connected at its upper end to a locking ring 3.
  • the container wall 4 continues at its upper edge continuously on the outside in an equally cylindrical retaining ring wall 5, the wall thickness of which, however, is considerably smaller than the wall thickness of the container 1.
  • the retaining ring 3 consists of a section 6 which maintains the cylindrical shape and of a section following the spraying process by about 150 "to 160" inwardly bent blocking portion 7, which was made deformable by the action of heat before the flanging.
  • a notch 8 is formed circumferentially into the outer wall, which in the transition from the wall 4 of the container to the wall 5 of the locking ring 3 leaves a web so thin that the locking ring 3 can be easily torn off by means of a tab 9.
  • the stopper 2 lies with a cylindrical base section 10 on a circumferential annular shoulder 11 of the container, which is recessed at the upper edge thereof.
  • the cylindrical section 10 is followed by a frustoconical section 12, which ends in a flat head surface 13 of the stopper 2.
  • the upper edge of the cylindrical base section 10 is flush with the upper edge of the container 1 after removal of the locking ring 3, so that the cylindrical base section 10 offers no contact surface for removing the stopper 2 from the container 1.
  • the frustoconical section 12 and the flat head surface 13 do not offer any gripping surface, so that the container 1 cannot be opened by a small child even if the locking ring 3 is torn off.
  • a slide 14 is provided, which is described below with reference to FIGS. 4 and 5.
  • the locking section 7 of the locking ring 3 is formed by a locking ring which is continuous in the circumferential direction and which was formed by plastic deformation of the previously heated locking ring.
  • This locking ring is inclined obliquely inwards in the direction of the conical section 12 of the plug 2 and extends almost up to the outer surface of this conical section, so that the plug 2 is kept practically immovable in the opening direction, even if this is not directly apparent from FIG.
  • the surface of the flat head portion 13 is set back somewhat from the upper edge of the locking ring 3, so that the slide 14 described below cannot be advanced beyond the locking ring 3.
  • FIGS. 3A and 3B show a modified embodiment of the container according to the invention, in which the locking section 7 of the securing ring 3 consists of separate locking tongues 15, between which approximately wedge-shaped spaces 16 are cut out or cut out. This facilitates the flanging of the blocking section into the blocking position shown obliquely inward in FIG. 2.
  • FIGS. 4 and 5 show a top view of the stopper 2, in the flat head side of which a slider 14 is embedded in such a way that its surface lies flush with the surface of the flat head section 13.
  • the slide 14 is guided with lateral strips 15 in corresponding grooves 16 of the stopper and can protrude from the position shown in FIG. 4, in which it is flush with the conical peripheral surface 12 of the stopper 2, into the stopper shown in FIG Position are shifted in which the slide 14 serves as a handle for removing the stopper 2 from the container 1.
  • the advanced position is defined by a projection on the underside of the slide and a corresponding stop on the stopper.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Closures For Containers (AREA)
EP92109499A 1991-08-01 1992-06-05 Behälter mit Stopfen Withdrawn EP0525336A2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4125468 1991-08-01
DE4125468A DE4125468C1 (enrdf_load_stackoverflow) 1991-08-01 1991-08-01

Publications (2)

Publication Number Publication Date
EP0525336A2 true EP0525336A2 (de) 1993-02-03
EP0525336A3 EP0525336A3 (enrdf_load_stackoverflow) 1994-03-02

Family

ID=6437471

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92109499A Withdrawn EP0525336A2 (de) 1991-08-01 1992-06-05 Behälter mit Stopfen

Country Status (2)

Country Link
EP (1) EP0525336A2 (enrdf_load_stackoverflow)
DE (1) DE4125468C1 (enrdf_load_stackoverflow)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4307332C2 (de) * 1993-03-09 1995-07-20 Gaplast Gmbh Mit einem Stopfen verschließbarer Behälter
DE4418935C3 (de) * 1994-05-31 1999-04-08 Spritzguswerk Kg Richard Rassb Vorrichtung zur Sicherung von durch ein Verschlußelement verschlossenen Behältern jeder Art gegen unbefugte Erstöffnung

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US33265A (en) * 1861-09-10 Improvement in guard-fingers for harvesters
CH437018A (de) * 1964-07-02 1967-05-31 Ruben Rausing Anders Behälter mit Verschluss
FR1462827A (fr) * 1965-01-08 1966-12-16 Geimuplast Mundt Kg Peter Récipient en matière plastique
DK157337C (da) * 1983-08-09 1990-05-14 Erik Bock Beholder med laag
EP0202506B1 (de) * 1985-05-24 1992-04-29 Friedrich Sanner GmbH & Co. KG Spritzgusswerk Behälterverschluss
SE464701B (sv) * 1987-03-12 1991-06-03 Astra Pharma Prod Foerpackning foer exempelvis tabletter foer medicinskt bruk
IT1211905B (it) * 1987-11-10 1989-11-08 Italcaps Spa Perfezionamento nelle capsule composite di chiusura con evidenziazione della manomissione

Also Published As

Publication number Publication date
EP0525336A3 (enrdf_load_stackoverflow) 1994-03-02
DE4125468C1 (enrdf_load_stackoverflow) 1993-01-28

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