EP0144855A2 - Fermeture en matière plastique - Google Patents

Fermeture en matière plastique Download PDF

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Publication number
EP0144855A2
EP0144855A2 EP84114014A EP84114014A EP0144855A2 EP 0144855 A2 EP0144855 A2 EP 0144855A2 EP 84114014 A EP84114014 A EP 84114014A EP 84114014 A EP84114014 A EP 84114014A EP 0144855 A2 EP0144855 A2 EP 0144855A2
Authority
EP
European Patent Office
Prior art keywords
closure
opening
container
foot
plastic closure
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Withdrawn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
EP84114014A
Other languages
German (de)
English (en)
Other versions
EP0144855A3 (fr
Inventor
Günter Dipl. rer. pol. Krautkrämer
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.)
Jacob Berg GmbH and Co KG
Original Assignee
Jacob Berg GmbH and Co KG
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 Jacob Berg GmbH and Co KG filed Critical Jacob Berg GmbH and Co KG
Publication of EP0144855A2 publication Critical patent/EP0144855A2/fr
Publication of EP0144855A3 publication Critical patent/EP0144855A3/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Withdrawn legal-status Critical Current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
    • B65D39/00—Closures arranged within necks or pouring openings or in discharge apertures, e.g. stoppers

Definitions

  • the invention relates to a plastic closure for placing on the axially bent edge of an opening in the wall of a container and for inseparable connection therewith, the closure having a mounting flange, a bead-like protruding foot and between them an annular groove separating them.
  • an opening for attaching a plastic closure is preferably provided in the top floor.
  • This opening is through a perforated collar, i.e. delimits an edge which is formed by flanging a circular edge in the top of the sheet metal container. This flanging takes place in the direction of the main axis of the container, to which the axis of the plastic closure is generally parallel.
  • a known plastic closure of the type described at the beginning has a truncated cone-shaped outer surface in such a way that the lower radius of the plastic closure, which is first inserted into the opening, is smaller, but larger in the upper area than that of the inner edge of the opening.
  • the upper region with the larger radius of the truncated cone gradually engages with the inner edge and at the upper end of the short, frustoconical base, i.e..
  • the aforementioned annular groove follows into which the perforated collar or the opening edge of the container can snap and where it is fixed. As a result, the forces when inserting the closure are too high.
  • the problem in the sense of the invention was to redesign known plastic closures in such a way that removal of the unopened closure from the filled container with or without tools without damage to the closure is made difficult.
  • the object of the invention is therefore to provide a plastic closure of the type specified in the introduction, the fit of which is improved without the forces required when inserting the closure becoming too high.
  • the improved fit of a closure can of course be achieved in that the lower bead edge is given a larger diameter, which improves the engagement of the perforated collar in the sealing groove.
  • the perforated collar has an annular surface (cut) which is oriented towards the inside of the container and which, after it has snapped in, bears against the lower bead edge of the closure foot.
  • the larger the bulge the larger the surface against which the cut can rest; the harder the H erausneh- men of the closure. If one were to take this measure to improve the breech fit, it would be necessary to compress the relatively large bulge ring-like when the breech was inserted, in order to achieve a corresponding reduction in the diameter.
  • the compressive pressure required for this would, of course, require high operational forces.
  • the foot has projecting cams which are arranged at a distance from one another on the circumference.
  • cams represent a radial enlargement of the bulge-like protruding foot, an increase in the annular bulge, so to speak, they only act locally because the annular bulge is interrupted according to the invention.
  • a circular bead is created on the side of the annular groove opposite the mounting flange, in which radial and bead-like projecting parts alternate with radially recessed parts.
  • the material of the cams can advantageously deflect radially inwards when the new plastic closure is pressed into the opening of the container top. Surprisingly, when closing the container, i.e.
  • the measures according to the invention lead to a fundamentally better fastening of the closure in the top floor of the metal container. This better fastening prevents the closure from being accidentally torn out of its fastening seat when the bellows-shaped pouring part of the closure is pulled up. The measure also prevents the closure from jumping out of the opening in the case of the filled container if it is substantially deformed by the fall.
  • the invention is advantageously further developed in that the distance between two adjacent cams Is a multiple of the width of a cam.
  • Preferred embodiments have at the periphery of the foot cam at a distance to which the 2- to 5-fold - is.
  • the advantages according to the invention can also be achieved with plastics of different softness. With harder plastics, fewer cams on the circumference of the foot are sufficient, between which there is a greater distance; with softer plastics, the distance between two adjacent cams will be reduced.
  • an opening in the top floor of a sheet metal container for packaging cooking oil with a diameter of approximately 42 mm, it has proven to be useful to provide eight cams with a width of about 8 mm on the circumference.
  • the plastic closure 1 shown in the figures consists of a lower part 2 and an upper part 3 which is bent into it and which projects out at the bottom .
  • FIG. 1 In FIG. 1
  • the lower part 2 which is of interest to the invention consists, viewed from top to bottom, of a mounting flange 4, an annular groove 5 and a foot which is generally designated 6 and is frustoconical in such a way that its smaller diameter is downward and its larger diameter is in relation to the annular groove 5 is provided.
  • This frustoconical or bead-shaped base 6 is not smooth as in known plastic closures but is provided with cams 7, 7 '.
  • the truncated cone given by the spacing areas 8, 8 'between the cams 7, 7' and also by these cams is pressed from top to bottom when the plastic closure is placed on the edge of a container opening, not shown in the illustration in FIG.
  • the left half of both figures shows that the distance a (FIG. 2) between two adjacent cams 7 is 2 to 5 times the width of the cam 7.
  • Another embodiment is shown on the right-hand side of the axis 9, in which the regions 8 1 between the cams 7 'are designed to be substantially smaller, even smaller than the width of the respective cam 7'.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Closures For Containers (AREA)
EP84114014A 1983-12-06 1984-11-20 Fermeture en matière plastique Withdrawn EP0144855A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3343970 1983-12-06
DE19833343970 DE3343970A1 (de) 1983-12-06 1983-12-06 Kunststoffverschluss

Publications (2)

Publication Number Publication Date
EP0144855A2 true EP0144855A2 (fr) 1985-06-19
EP0144855A3 EP0144855A3 (fr) 1986-08-20

Family

ID=6216114

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84114014A Withdrawn EP0144855A3 (fr) 1983-12-06 1984-11-20 Fermeture en matière plastique

Country Status (2)

Country Link
EP (1) EP0144855A3 (fr)
DE (1) DE3343970A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7886927B2 (en) * 2004-12-22 2011-02-15 Sonoco Development, Inc. Container cover for container with edge protrusion

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH028867Y2 (fr) * 1980-03-03 1990-03-02
FR2490770A1 (fr) * 1980-09-23 1982-03-26 Itw De France Dispositif d'obturation pour trous ou orifices pratiques notamment dans des panneaux generalement en tole
EP0089395A1 (fr) * 1982-03-23 1983-09-28 The Continental Group, Inc. Fermeture à fixation dans un récipient tubulaire

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7886927B2 (en) * 2004-12-22 2011-02-15 Sonoco Development, Inc. Container cover for container with edge protrusion

Also Published As

Publication number Publication date
DE3343970A1 (de) 1985-06-20
EP0144855A3 (fr) 1986-08-20

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Inventor name: KRAUTKRAEMER, GUENTER, DIPL. RER. POL.