EP0761552A1 - Stapelbarer Kunststoffbehälter - Google Patents

Stapelbarer Kunststoffbehälter Download PDF

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Publication number
EP0761552A1
EP0761552A1 EP95113878A EP95113878A EP0761552A1 EP 0761552 A1 EP0761552 A1 EP 0761552A1 EP 95113878 A EP95113878 A EP 95113878A EP 95113878 A EP95113878 A EP 95113878A EP 0761552 A1 EP0761552 A1 EP 0761552A1
Authority
EP
European Patent Office
Prior art keywords
plastic container
container according
lid
web
neck
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Withdrawn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
EP95113878A
Other languages
German (de)
English (en)
French (fr)
Inventor
Tony Ho
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.)
TEST RITE INTERNATIONAL (GERMANY) GmbH
Original Assignee
TEST RITE INTERNATIONAL (GERMANY) 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 TEST RITE INTERNATIONAL (GERMANY) GmbH filed Critical TEST RITE INTERNATIONAL (GERMANY) GmbH
Priority to EP95113878A priority Critical patent/EP0761552A1/de
Publication of EP0761552A1 publication Critical patent/EP0761552A1/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Withdrawn legal-status Critical Current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
    • B65D41/46—Snap-on caps or cap-like covers
    • 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
    • B65D21/00—Nestable, stackable or joinable containers; Containers of variable capacity
    • B65D21/02—Containers specially shaped, or provided with fittings or attachments, to facilitate nesting, stacking, or joining together
    • B65D21/0209—Containers specially shaped, or provided with fittings or attachments, to facilitate nesting, stacking, or joining together stackable or joined together one-upon-the-other in the upright or upside-down position
    • B65D21/0217—Containers with a closure presenting stacking elements
    • B65D21/0219—Containers with a closure presenting stacking elements the closure presenting projecting peripheral elements receiving or surrounding the bottom or peripheral elements projecting from the bottom of a superimposed container

Definitions

  • the invention relates to a plastic container, in particular a sales and storage container for smaller objects, with a neck narrowed in relation to its lateral dimensions and an upper filling and removal opening enclosed by the neck and closable by means of a lid, and with a standing surface arranged on a bottom of the container .
  • containers of this type are well suited for storing other things after removal of the items contained therein, so that many customers pay attention not only to the contents of the containers when buying them, but also to their suitability for such further use .
  • the containers should preferably be stackable, which in principle is already ensured by a lid surface parallel to their base area. However, this does not prevent containers standing on top of one another from slipping sideways, nor is it possible to position the containers precisely one above the other without time-consuming alignment.
  • the object of the invention is to create a packaging container of the type mentioned at the beginning which can be produced at low cost and which has an improved stacking capacity.
  • the lid is provided with an upwardly projecting annular web above the lid surface, and that the standing surface is also annular and fits into the recess enclosed by the web.
  • the plastic container according to a preferred embodiment of the invention is a wide-necked container which is expediently produced by blow molding with a lost head from a transparent thermoplastic material, preferably PVC or polyethylene terephthalate, the base area expediently from the underside an annular, protruding bulge is formed in the bottom, where the bottom is pressed into a correspondingly shaped groove of the mold during blow molding.
  • the floor therefore has an annular depression along the base in the interior, the cross-sectional shape of which corresponds essentially to that of the bulge.
  • a preferred embodiment of the invention provides that the stand surface adjoins the outside to form a circumferential surface which is perpendicular to the stand surface and which lies opposite the inside of the web perpendicular to the lid surface when the containers are stacked one on top of the other.
  • a preferred embodiment of the invention provides for a difference between the nominal diameter of the inside of the web and the nominal diameter of the peripheral surface adjoining the standing surface is equal to the sum of the blow molding of the container or tolerances occurring at this point in the shaping of the cover.
  • the height of the web is preferably somewhat less than the height of the peripheral surface, so that an upper side of the web does not abut against a shoulder adjoining the peripheral surface of a container resting with its base on the lid surface, since this Schutler in a blow-molded article in one of the parting line Molding adjacent area can have a small burr, which could act like a tilting edge in the event of a support on the top of the web.
  • this ridge is not very high, a height difference of about half a millimeter is generally sufficient, in particular if, according to a further advantageous embodiment of the invention, it is ensured that a bottom squeeze seam formed during blow molding by squeezing a floor slug and running through the center of the floor ends in front of the base and preferably before the inner end of the bulge.
  • another preferred embodiment of the invention provides that the height of the web and the Irrespective of the container size, the circumferential surface does not exceed a predetermined value of a maximum of 2.5 mm and is preferably approximately 1.3 mm or 2 mm.
  • the greatest possible distance is chosen between the standing surface and a vertical through the center of gravity lying in the center of the container, by molding the web on the edge of the lid, preferably such that its outer surface is flush with the peripheral surface of the lid flees.
  • the cover When using a thin or resilient cover material, the cover can be reinforced below the web by a circumferential shoulder, which deflects in the area of the Bridge prevented.
  • buckling of the bulge forming the standing surface can expediently be prevented in that, in contrast to the outer circumferential surface, a transition surface that adjoins the standing surface between the latter and a horizontal central bottom surface of the container that is preferably parallel to the standing surface is not inclined vertically but flat and preferably includes an angle of less than 20 degrees and most preferably about 15 degrees with the plane of the footprint.
  • the cover can be designed as a screw cap and have an internal thread which engages with an external thread formed on the neck, or alternatively as a snap cover which can be snapped onto the upper edge of the neck.
  • a further advantageous embodiment of the invention provides a so-called “taper-evident" security.
  • this can preferably consist of a paper seal glued to the lid and to the container, which tears when the screw cap is rotated, while in the case of a snap cap, a tear strip is preferably arranged between a lower edge of the lid and an upper edge of a collar fastened to the neck extends from one side of a bending hinge arranged between the cover and the collar around the neck to the other side thereof and is attached to the cover and collar by a thin film-like material bridge forming a predetermined breaking point.
  • the containers 2, 4 shown in the drawing are sales and storage containers for small parts, for example screws, hooks or other articles, which are usually sold in large numbers as bundles in hardware stores, department stores or the like.
  • the containers 2, 4 are shaped into so-called wide-neck containers, in which the ratio between the largest diameter of a container body 6, 7 and the diameter of an upper filling and removal opening 10 enclosed by a neck 8 of the container 2, 4 is less than 2: 1 , and in which a filling and removal opening 10 closing lid 12, 14 does not laterally protrude beyond the outer boundary surfaces of the container body 6, 7, so that the containers 2, 4 lie next to each other for transport or storage without space, place or stack to let.
  • the containers 2, 4 are made of a plastic material that can be blow molded into the intended container shape, such as hard PVC (polyvinyl chloride) or PETE (polyethylene terephthalate), while the lids 12, 14 are also made of a plastic material , but usually by injection molding, so that other plastic materials can be used, for example polyethylene.
  • the lids 12, 14 are preferably not transparent.
  • the containers 2, 4 are designed in such a way that they can be stacked one above the other, a base surface 18 formed on their base 16 resting on the lid surface 20 of a container 2, 4 arranged directly below in the stack.
  • the lids 12, 14 of the containers 2, 4 have on their upper side an annular ring which extends beyond the lid surface 20 Web 22 on, while the container bottom 16 has a corresponding design with a downwardly protruding likewise annular bulge 24, whose outer cross-sectional shape and dimensions are matched to the inner cross-sectional shape and dimensions of the web 22 that the bulge 24 into the from the web 22 enclosed recess 26 fits on the top of the lid. This also ensures that the outer boundary surfaces 28 of the same size container bodies 6, 7 are aligned with each other, so that the external appearance of the stacked containers 2, 4 is improved.
  • the web 22 is arranged directly on the edge of the cover, so that its outside 30 is aligned with a peripheral surface 32 of the cover 12, 14.
  • the bulge 24 on the container bottom 16 is set back inwards because of the larger cross-sectional dimensions of the container body 6, 7 compared to the cover 12, 14 relative to the boundary surfaces 28 of the container body 6, 7.
  • the height of the web 22 is 1.3 mm slightly smaller than the height of a circumferential surface 34 between the standing surface 18 and a lower circumferential shoulder 36 of the container body 6, 7 (2 mm), so that the web 22 with its top 40 does not abut against the underside of this shoulder 36 if another Container 2, 4 stands on the lid surface 20 (Fig. 14).
  • an extruded preform is pressed into a groove of a blow mold corresponding to the bulge 24 during blow molding, so that the wall thickness of the container body 6, 7 there is not greater than in adjacent regions.
  • a circumferential recess 42 is therefore formed in the container bottom 16 in the interior of the container.
  • the horizontal standing surface 18 formed on the underside of the bulge 24 adjoins the circumferential surface 34 perpendicular to the standing surface 18, the diameter of which is a few tenths of a millimeter smaller than an inside 44 of the web 22 perpendicular to the lid surface 20, so that the inside 44 of the cover web 22 and the circumferential surface 34 of the base bulge 24 of the container body 6, 7 of a container 2, 4 standing with its base 18 on the cover 12, 14 are at a short distance from each other.
  • the diameter difference corresponding essentially to the sum of the manufacturing tolerances of the diameters mentioned prevents containers 2, 4, in which the peripheral surfaces 34 have a slight oversize, from not fitting on covers 12, 14, in which the inside 44 of the web 22 has a small undersize .
  • the standing surface 18 is adjoined by an annular transition surface 46 which is inclined at an angle of 15 degrees with respect to the plane of the standing surface 18 and extends to a central circular base surface 48, the distance from which is from the standing surface 18 to the height of the Circumferential surface 34 corresponds.
  • Extending across the round bottom surface 48 is a bottom squeeze seam 50 which is formed when a floor slug (not shown) is squeezed and which ends before the inner edge of the transition surface 46.
  • the lower shoulder 36 of the container body 6, 7 which adjoins the peripheral surface 34 is rounded, its radius of curvature corresponding to that of a circumferential upper shoulder 52 arranged between the neck 8 and the container body 6, 7.
  • the container 2 shown in Figures 1 to 6 has a circular cross section and is closed with a lid 12 designed as a screw cap, which has an internal thread on its underside, which mates with an external thread 54 on the neck 8 of the container body 6.
  • the container 4 shown in FIGS. 7 to 14 has a square cross section and is closed with a lid 14 designed as a snap lid, which has an inwardly protruding bead-shaped cross-sectional widening 58 at its lower edge 56, which is pressed onto the neck 8 engages under a downward facing shoulder 60 of the neck 8 (FIG. 13).
  • the lid 14 is connected via a bending hinge 62 to a collar 64 fastened to the neck 8 of the container body 7, which collar 64 is made of the same material as the lid 14 and is formed integrally therewith.
  • a tear-off strip 68 is attached, which must be torn off before the container 4 is opened for the first time and serves as a guarantee that the container 4 has not been opened before the sale , and its content is therefore complete or complete.
  • the cross section of the lower edge 56 of the cover 14 and the upper edge 66 of the collar 64 are tapered in the direction of the tear-off strip 68 so that it is only connected to the cover 14 and the collar 64 via a thin, film-like bridge 70, 72 which easily tears when pulled on a grip tab 74 arranged at one end of the tear-off strip 68 which is provided with transverse grooves to facilitate holding the tab 74 when pulling.
  • the bending hinge 62 arranged between the two ends 76, 78 of the tear-off strip 68 consists of two separate, spaced-apart material bridges 62a, 62b between the upper edge 66 of the collar 64 and the lower edge 56 of the cover 14, the material thickness being that of the cover edge corresponds. Small gaps 63 extend through the cover material between the two material bridges 62a, 62b and on both sides thereof, through which the neck 8 of the container 4 is visible from the outside.
  • a diametrically opposed bending hinge 62 is formed on the lower edge 56 of the cover 14, on which the cover 14 can be pulled up to open it.
  • the handle tab 80 projects horizontally outward over the circumference of the lid 14 and has a thickness corresponding to the thickness of the lid edge 56.
  • the neck 8 of the container 4 is provided on its outside with a circumferential groove 82, which is arranged between the upper shoulder 52 of the container body 7 and a neck portion 84 tapering upwards to below the locking shoulder 60.
  • An inwardly projecting projection 86 of the collar 64 engages in the circumferential groove 82, so that it is held on the neck 8 so that it cannot be moved up and down.
  • An upper end 90 of the neck 8 between the locking shoulder 60 and an annular end surface 92 serving as a contact surface for the cover 14 is also tapered
EP95113878A 1995-09-05 1995-09-05 Stapelbarer Kunststoffbehälter Withdrawn EP0761552A1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP95113878A EP0761552A1 (de) 1995-09-05 1995-09-05 Stapelbarer Kunststoffbehälter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP95113878A EP0761552A1 (de) 1995-09-05 1995-09-05 Stapelbarer Kunststoffbehälter

Publications (1)

Publication Number Publication Date
EP0761552A1 true EP0761552A1 (de) 1997-03-12

Family

ID=8219578

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95113878A Withdrawn EP0761552A1 (de) 1995-09-05 1995-09-05 Stapelbarer Kunststoffbehälter

Country Status (1)

Country Link
EP (1) EP0761552A1 (pt-PT)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2248982A1 (en) * 1973-10-26 1975-05-23 Desmaryes Stackable containers for glue - narrowed bases fit into caps of containers below
FR2516056A1 (fr) * 1981-11-09 1983-05-13 Asepta Ag Recipient en verre a couvercle flexible
GB2134497A (en) * 1983-02-08 1984-08-15 Padana Polesana Vetreria Glass storage jar
EP0144196A2 (en) * 1983-11-22 1985-06-12 Yoshino Kogyosho Co., Ltd. Blow-molded bottle-shaped container of biaxially oriented thermoplastic synthetic resin with wide port
DE8901244U1 (pt-PT) * 1989-02-04 1989-05-18 May-Werke Gmbh & Co Emballagen Kg, 5042 Erftstadt, De
EP0631940A1 (de) * 1993-06-30 1995-01-04 Gabriel Gawlik Mehrwegfähiges Transport- und Packungssystem mit einem stapelbaren Kasten für ineinandersteckbare Behälter

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2248982A1 (en) * 1973-10-26 1975-05-23 Desmaryes Stackable containers for glue - narrowed bases fit into caps of containers below
FR2516056A1 (fr) * 1981-11-09 1983-05-13 Asepta Ag Recipient en verre a couvercle flexible
GB2134497A (en) * 1983-02-08 1984-08-15 Padana Polesana Vetreria Glass storage jar
EP0144196A2 (en) * 1983-11-22 1985-06-12 Yoshino Kogyosho Co., Ltd. Blow-molded bottle-shaped container of biaxially oriented thermoplastic synthetic resin with wide port
DE8901244U1 (pt-PT) * 1989-02-04 1989-05-18 May-Werke Gmbh & Co Emballagen Kg, 5042 Erftstadt, De
EP0631940A1 (de) * 1993-06-30 1995-01-04 Gabriel Gawlik Mehrwegfähiges Transport- und Packungssystem mit einem stapelbaren Kasten für ineinandersteckbare Behälter

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