EP0103567A2 - Capuchon à vis en matière plastique et dispositif pour fermer un récipient avec un tel capuchon - Google Patents

Capuchon à vis en matière plastique et dispositif pour fermer un récipient avec un tel capuchon Download PDF

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Publication number
EP0103567A2
EP0103567A2 EP83890163A EP83890163A EP0103567A2 EP 0103567 A2 EP0103567 A2 EP 0103567A2 EP 83890163 A EP83890163 A EP 83890163A EP 83890163 A EP83890163 A EP 83890163A EP 0103567 A2 EP0103567 A2 EP 0103567A2
Authority
EP
European Patent Office
Prior art keywords
screw cap
cap
container
rib
nose
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Withdrawn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
EP83890163A
Other languages
German (de)
English (en)
Other versions
EP0103567A3 (fr
Inventor
Elisabeth Schütt
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP0103567A2 publication Critical patent/EP0103567A2/fr
Publication of EP0103567A3 publication Critical patent/EP0103567A3/fr
Withdrawn legal-status Critical Current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
    • B65D41/3442—Threaded or like caps or cap-like covers provided with tamper elements formed in, or attached to, the closure skirt with rigid bead or projections formed on the tamper element and coacting with bead or projections on the container
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
    • B67B—APPLYING CLOSURE MEMBERS TO BOTTLES JARS, OR SIMILAR CONTAINERS; OPENING CLOSED CONTAINERS
    • B67B3/00—Closing bottles, jars or similar containers by applying caps
    • B67B3/20—Closing bottles, jars or similar containers by applying caps by applying and rotating preformed threaded caps

Definitions

  • the invention relates to a plastic screw cap for closing a container, particularly a bottle, without permanent deformation after the application of the screw cap, wherein the threaded portion the screw cap has at its open end an un b efug- tes-indicating assurance that in the closed state with at least one radially inwardly projecting nose arranged below the threaded section engages behind a bead on the neck of the container.
  • the invention further relates to a device for closing a container with such a cap.
  • a known screw cap of the type mentioned at the outset has, as such a fuse, a retaining ring attached to it at the bottom, which has a larger diameter than the threaded section and is connected to it via one or more predetermined breaking points distributed over the circumference.
  • all predetermined breaking points are severed so that the retaining ring on the bottle remains below the bead provided on its neck. This is disadvantageous when reusing the bottles, since each circlip must be removed beforehand.
  • DE-OS 2 613 571 discloses a plastic guarantee closure which can be applied to the container neck by sealing and which likewise has a strip-like guarantee part provided on its lower edge on a screw cap; due to the heat deformation after application to the bottle, this guarantee part engages around a bulge-like projection on the bottle neck in such a form-fitting manner that the guarantee part is damaged when the bottle is opened on at least one exclusively vertical tear line. It is further provided that between the predetermined tear lines of the guarantee part runs so weakly and without any horizontal predetermined tear line and without undercut that an axial ejection of the screw cap from an injection molding tool without a device for radial opening is guaranteed.
  • the invention relates to screw caps without permanent deformation after their application to the container or the bottle.
  • the object of the invention is to create a screw cap of the type mentioned at the beginning, in which the fuse is integrated with its predetermined breaking points into the screw cap, i.e. that after opening the container for the first time, no part of the screw cap remains on it, but the screw cap is nevertheless suitable for reclosing.
  • the screw cap should have a sufficiently large area to be touched for the purpose of easy power transmission, with little effort required to open the first time.
  • the wall of the screw cap is extended below the nose and that the wall of the screw cap then arranged at least one substantially parallel to the longitudinal axis of the cap to secure the threaded portion of the cap to the lower edge of the cap or, as is known per se, has such a weakening zone, the weakening zone below the nose being a predetermined breaking point or expansion point or the slot having a bridging serving as such.
  • the design according to the invention also makes it possible to design the jacket of the cap with a surface area enlarged by a third compared to the previous one, which has a favorable effect on handling and on the effort required in handling.
  • the weakening zone is designed as a groove with a wedge profile; good temperature control (cooling) of the injection mold can easily be achieved.
  • the weakening zone is formed in the interior of the jacket of the screw cap and preferably extends close to the outer surface of the jacket of the screw cap. In this way, the outer jacket of the screw cap can form a continuous cylinder surface, which facilitates handling with good power transmission and results in a pleasing appearance.
  • the predetermined breaking point or expansion point is designed as a rib bridging the slot or the weakening zone; this rib can easily, depending on the choice of a suitable plastic, be designed to be breakable or expandable when first opened. It can preferably be provided that the rib is annular; such an annular rib can be easily formed and zer at the lower end of the screw cap then breaks, in contrast to the known screw cap mentioned at the beginning, when it is opened for the first time into individual ring sections, which, however, remain on the cap here. It is also possible for the rib to be designed as a gusset seated in the keyway, which results in a particularly small space requirement.
  • the device for closing a container, in particular a bottle, with a screw cap according to the invention in which a rotatable, bell-like tool which interacts with the threaded section during the screwing process and which extends into the area of the fuse is provided according to the invention in that the tool in the area between the lower edge and the nose of the screw cap has an inwardly projecting, preferably annular support.
  • the support is designed as a ring mounted in a groove of the tool with radial play; this allows the ring to be positioned exactly in the center of the screw cap when the screwing process begins. This is further facilitated if the support has an inner surface that widens downward, preferably conically.
  • a cap base 2 on which a seal 3 is stopped and to the outside of which a jacket 4 is connected, which is provided with corrugations 5 on its cylindrical outside.
  • a wall section 8 is provided, which on the one hand has inwardly projecting lugs 9, here six in number, and in between each have weakenings in the form of splines 10 which run parallel to the longitudinal axis of the cap . These splines extend in depth, as can be seen from FIG. 1, right half, up to close to the outer surface of the casing 4.
  • the lower end of the splines 10 is provided as a predetermined breaking point with a rib 11, which here has the shape of a double : it is thus represented in a vertical section with a rectangular shape (Fig. 1, right half) and in a top view (Fig. 2) in a triangular shape, thus forming a three-sided prism which consists of one piece with the other parts of the screw cap.
  • this cap 1 is screwed onto a bottle 12, which has corresponding external threads 15 under its opening 13 on the neck 14 and an annular bead 16 below it.
  • the arrangement is such that, as can be seen from FIG. 1, the lugs 9 on the jacket 4 of the cap 1 come to rest below this bead 16 on the bottle neck 14.
  • a bottle 12 closed with the cap 1 is to be opened for the first time, then when the cap 1 is unscrewed, its lugs 9, as shown in FIG. 3, run up on this bead 16 and thereby radially expand the lowermost part of the jacket 4. in such a way that the ribs 11 are broken, for example in vertical planes by the longitudinal axis of the cap, and 4 columns 17 form in part 8 of the casing, which continue in the area of the keyways 10, above the ribs 11, upwards.
  • the lugs 9 slide over the cylindrical outer surface of the bead 16 in the manner shown; at the end of the screwing-on process, the bottle 12 is opened and the screw cap 1 can be lifted off without any part of it remaining on the bottle 12. This also provides a tamper-evident seal.
  • the cap 1 can then be used several times to reclose or open the bottle 12.
  • the device for closing a bottle 12 with the screw cap 1 has, as can be seen in FIG. 8, a bell-like tool 18 which can be set in rotation, in the opening 19 of which devices (not shown) are provided which act on the jacket 4 of the cap 1 and take the cap 1 in rotation.
  • an annular shoulder 20 projects inwards, which lies at the height of the lower edge of the screw cap 1, exactly at the height of the rib 11 thereof. If so when screwing on the cap 1, which rests with its bottom on the bottom of the opening 19, on the neck 14 of the Bottle 12 the noses 9 run from above onto the bead 16, the parts of the jacket 4 which have these noses 9, etc. of its wall section 8, bulging radially outwards, as indicated at 21, but not the lower edge 22 of the jacket 4, since for this a support is formed by the inner edge of the annular shoulder 20, which prevents the ribs 11 from breaking.
  • this annular shoulder 20 widens downwards and outwards, which results in a good centering of the bottle neck 14 before the cap 1 is put on.
  • the annular shoulder 20 can also, instead of being formed in one piece with the tool 18 according to FIG. 8, be inserted as a ring 20 'into an angular groove 23 of the tool 18 with radial play and be secured therein by a flange 24, as shown in FIG Fig. 9 is shown. Further modifications to these devices are possible within the scope of the invention.
  • the structural or physical design and arrangement of the securing device as a rib 11 bridging the weakening or the keyway 10 can be varied within wide ranges, as can be seen, for example, from FIGS. 4a-4i. 4a, the gusset-shaped rib 11 is arranged in the keyway 10 at a short distance from the lower edge 22; 4b at the same height, it can also be designed as an outwardly projecting ring 24, which, however, can also sit flush with the edge 22 of the jacket 4 at the lower end of the jacket 4 according to FIG. 4c. Ig by F. 4d, the keyway 10 is closed at the bottom by a gusset-shaped membrane 25 which extends over the entire depth of the keyway 10.
  • a ring 24 is attached to the lower edge 22 of the cap shell 4, projecting above it, and so on. outside (Fig. 4e), in the middle (Fig. 4f) or inside (Fig. 4g). Such a ring 24 can also lie flush with the lower edge 22, etc. middle (Fig. 4h) or inside (Fig. 4i).
  • FIGS. 5 and 6 of a screw cap 1 it is provided that the keyways 10 do not start from the inside of the casing 4 in its part 8, but from the outside thereof.
  • the reference symbols used have the same meaning as described with reference to FIGS. 1 and 2.
  • FIGS. 7a-7c show a rib 11 between the walls of the keyway 10, outside (FIG. 7a), in the middle (FIG. 7b) and inside (FIG. 7c), in each case at a distance from the lower edge 22; 7d as a rib 11 on the outside and flush with the edge 22, in FIG. 7e as an externally attached ring 24, also flush with the edge 22; in Fig. 7f as a thin membrane 25 at the end of the keyway 10, similar to Fig.
  • FIG. 7g to 7i as a ring 24, applied under the edge 22, outside (FIG. 7g), in the middle (FIG. 7h) and inside (FIG. 7i); in FIG. 7j as a ring 24 which projects inwards and is flush with the edge 22, and in FIG. 7k as a central rib 11 similar to FIG. 7b, but flush with the lower edge 22.
  • the cross section of the weakening can be shaped in various ways even within the scope of the invention.
  • grooves with a semicircular or rectangular profile can also be provided.
  • the weakenings can also originate from both the inner surface and the outer surface of the jacket 4.
  • the weakenings can also be driven so far that they end in the outer surface of the casing 4, at the foot of the corrugation 5 of the same; they can end on the inner surface of the jacket 4. But they can also be designed as slot-shaped openings in the jacket 4 itself, which are then closed in the lower region by the rib 11 or a ring 24 or a membrane 25.
  • the direction of the longitudinal axes of these weakenings shown or varied in this way need not necessarily be parallel to Longitudinal axis of the cap 1, it can also be arranged at an appropriately small angle to this.
  • the predetermined breaking point formed by the rib 11, the ring 24 or the membrane 25 in the exemplary embodiments described can also be designed as an expansion point by choosing a suitable plastic composition.
  • a sealing lip or the like formed in one piece with the cap can also be used. be provided.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Closures For Containers (AREA)
EP83890163A 1982-09-14 1983-09-14 Capuchon à vis en matière plastique et dispositif pour fermer un récipient avec un tel capuchon Withdrawn EP0103567A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT3434/82 1982-09-14
AT343482A AT375893B (de) 1982-09-14 1982-09-14 Schraubkappe aus kunststoff und vorrichtung zum verschliessen eines behaelters mit derselben

Publications (2)

Publication Number Publication Date
EP0103567A2 true EP0103567A2 (fr) 1984-03-21
EP0103567A3 EP0103567A3 (fr) 1985-10-09

Family

ID=3550455

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83890163A Withdrawn EP0103567A3 (fr) 1982-09-14 1983-09-14 Capuchon à vis en matière plastique et dispositif pour fermer un récipient avec un tel capuchon

Country Status (3)

Country Link
EP (1) EP0103567A3 (fr)
JP (1) JPS5974069A (fr)
AT (1) AT375893B (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0248145A1 (fr) * 1986-06-04 1987-12-09 ALPLAST S.p.A. Appareil applicateur de fermetures
US5992661A (en) * 1997-04-14 1999-11-30 Zumbuhl; Bruno Tab construction for closures having tamper evident rings
US6793082B1 (en) * 1997-10-30 2004-09-21 International Plastics And Equipment Corporation Snap-on screw-off closure for use in combination with a container
WO2010012576A1 (fr) * 2008-07-28 2010-02-04 Volpak, S.A.U. Procédé de capsulage destiné à capsuler un bec d'évacuation de matière plastique et bec d'évacuation pouvant être obtenu à l'aide dudit procédé

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1782538A1 (de) * 1968-09-13 1971-09-23 Enzinger Union Werke Ag Schwaechungslinien aufweisende Schraubkappe
US4210251A (en) * 1977-05-20 1980-07-01 Jean Grussen One piece molded screw-type bottle cap

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1394363A (en) * 1971-05-11 1975-05-14 Metal Closures Ltd Container closure
DE2127023C3 (de) * 1971-06-01 1979-04-19 The Coca-Cola Co., Atlanta, Ga. (V.St.A.) Schraubverschluß
DE2315962A1 (de) * 1972-04-05 1973-10-18 Metal Closures Ltd Verschlusskappenrohling fuer flaschen od. dgl.
CH583647A5 (fr) * 1975-04-04 1977-01-14 Obrist Ag Albert

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1782538A1 (de) * 1968-09-13 1971-09-23 Enzinger Union Werke Ag Schwaechungslinien aufweisende Schraubkappe
US4210251A (en) * 1977-05-20 1980-07-01 Jean Grussen One piece molded screw-type bottle cap

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0248145A1 (fr) * 1986-06-04 1987-12-09 ALPLAST S.p.A. Appareil applicateur de fermetures
WO1987007588A1 (fr) * 1986-06-04 1987-12-17 Alplast S.N.C. Dei Fratelli Francesco E Renato Gor Appareil pour l'application de bouchages
US4905447A (en) * 1986-06-04 1990-03-06 Alplast S.P.A. Closure applying apparatus
AU604688B2 (en) * 1986-06-04 1991-01-03 Alplast S.P.A. Closure applying apparatus
US5992661A (en) * 1997-04-14 1999-11-30 Zumbuhl; Bruno Tab construction for closures having tamper evident rings
US6793082B1 (en) * 1997-10-30 2004-09-21 International Plastics And Equipment Corporation Snap-on screw-off closure for use in combination with a container
WO2010012576A1 (fr) * 2008-07-28 2010-02-04 Volpak, S.A.U. Procédé de capsulage destiné à capsuler un bec d'évacuation de matière plastique et bec d'évacuation pouvant être obtenu à l'aide dudit procédé

Also Published As

Publication number Publication date
EP0103567A3 (fr) 1985-10-09
JPS5974069A (ja) 1984-04-26
ATA343482A (de) 1984-02-15
AT375893B (de) 1984-09-25

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