PT662427E - PLASTIC COVER THAT MAY BE MECHANICALLY TEASED - Google Patents

PLASTIC COVER THAT MAY BE MECHANICALLY TEASED Download PDF

Info

Publication number
PT662427E
PT662427E PT94119731T PT94119731T PT662427E PT 662427 E PT662427 E PT 662427E PT 94119731 T PT94119731 T PT 94119731T PT 94119731 T PT94119731 T PT 94119731T PT 662427 E PT662427 E PT 662427E
Authority
PT
Portugal
Prior art keywords
cap
wall
neck
ring
container
Prior art date
Application number
PT94119731T
Other languages
Portuguese (pt)
Inventor
Ernst Wiedmer
Original Assignee
Ewit Ag
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
Priority claimed from CH2694A external-priority patent/CH687922A5/en
Priority claimed from CH2594A external-priority patent/CH687695A5/en
Application filed by Ewit Ag filed Critical Ewit Ag
Publication of PT662427E publication Critical patent/PT662427E/en

Links

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
    • B65D41/3447—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 the tamper element being integrally connected to the closure by means of bridges
    • 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
    • B65D41/02—Caps or cap-like covers without lines of weakness, tearing strips, tags, or like opening or removal devices
    • B65D41/04—Threaded or like caps or cap-like covers secured by rotation
    • B65D41/0471—Threaded or like caps or cap-like covers secured by rotation with means for positioning the cap on the container, or for limiting the movement of the cap, or for preventing accidental loosening of the cap

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Closures For Containers (AREA)
  • Adornments (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)

Abstract

A plastic screw cap for initial, mechanised closure of a container has a thread (13) similar to that (1.7) of the container neck and projections (1.4, 1.5, 1.6) on the rounded edge formed by the cap inner wall (1.2) and the cover plate. The cap screw-on action ends suddenly when the container thread (1.7) contacts the projections. A claimed use for the cap is in the initial mechanised closure of glass or plastic, esp. PET bottles with screw threaded necks. The entire cap including projections, reinforcements is injection moulded in plastic.

Description

662 Alt \662 Alt \

DESCRIÇÃO "TAMPA DE PLÁSTICO QUE PODE SER ENROSCADA MECANICAMENTE" A invenção aqui descrita refere-se a uma tampa roscada, apropriada para ser inicialmente colocada mecanicamente em recipientes que têm no gargalo uma rosca e um estrangulamento por baixo do gargalo do recipiente.DESCRIPTION OF THE PREFERRED EMBODIMENTS OF THE PLASTIC COVER THAT MAY BE MECHANICALLY WIRED " The invention described herein relates to a screw cap, suitable to be initially placed mechanically in containers having a screw thread and a bottleneck under the neck of the container.

Actualmente os requisitos técnicos mais importantes das tampas do tipo geral atrás mencionado são os quatro seguintes: - Produção pelo processo de moldação por injecção, em moldes de injecção o mais simples possível (evitando recortes recavados), - Serem apropriadas para uma montagem inicial mecânica, extremamente rápida, - Darem uma indicação estatisticamente apropriada da primeira abertura, e - Reutilização da tampa para fechar o recipiente mesmo depois da primeira abertura. São conhecidas tampas do tipo geral atrás referido, da patente EP 0 565 130 A. A presente invenção situa-se no campo da concepção da tampa de modo que a mesma seja especificamente bem adaptada para a montagem inicial, mecânicamente, e que indique com fiabilidade a primeira abertura, de uma maneira sem dificuldade. Naturalmente que não deve reduzir-se a satisfação dos outros requisitos atrás mencionados. 1 rAt present the most important technical requirements of the caps of the general type mentioned above are the following four: - Production by the injection molding process, in injection molds as simple as possible (avoiding recessed cuts), - be suitable for an initial mechanical assembly, - Provide a statistically appropriate indication of the first opening, and - Reuse of the lid to close the container even after the first opening. Caps of the above general type are known from EP 0 565 130A. The present invention is in the field of cap design so that it is specifically well suited for initial assembly mechanically and reliably the first opening, in a way without difficulty. Of course, the satisfaction of the other requirements mentioned above should not be reduced. 1 r

As tampas com farpas no interior do anel de garantia, no fundo da tampa, são já conhecidas de, entre outras, a patente EP-A 0 299 017. O aumento de material de acordo com a invenção, no sentido da borda inferior da banda de garantia, não esta ilustrado nem descrito.The peg covers within the warranty ring at the bottom of the cover are known from, inter alia, EP-A 0 299 017. The increase of material according to the invention towards the lower edge of the web warranty is not illustrated or described.

Descrevem-se aneis de garantia correspondentes também na patente EP-A 0 154 603. Aqui é mesmo evidente que - considerado em geral - a quantidade de material no anel de garantia diminui no sentido descendente.Corresponding warranty rings are also described in EP-A 0 154 603. It is evident here that - generally considered - the amount of material in the guaranty ring decreases in the downward direction.

Também a patente US-A-4 846 361 descreve tampas de plástico com aneis de garantia.Also, US-A-4 846 361 discloses plastic lids with warranty rings.

Como se referiu, as tampas deste tipo são enroscadas mecanicamente no gargalo do recipiente, quando do fecho inicial. Quando isso tem lugar em garrafas de vidro, o processo é impedido, entre outras coisas, pelas tolerâncias dimensionais relativamente grandes no gargalo de uma garrafa. Nas garrafas de plástico moldadas por injecção - especifica-mente garrafas de tereftalato de polietileno - a velocidade de enroscamento e portanto as frequências de fecho podem aumentar. Neste caso, surgem problemas no instante em que se aplica no gargalo do recipiente abaixo da porção do estrangulamento, devido às deformações produzidas no anel de garantia.As mentioned, the covers of this type are screwed mechanically into the neck of the container upon initial closure. When this takes place in glass bottles, the process is prevented, among other things, from the relatively large dimensional tolerances in the neck of a bottle. In injection molded plastic bottles - specifically polyethylene terephthalate bottles - the screwing speed and therefore the closing frequencies may increase. In this case, problems arise at the instant it is applied in the container neck below the portion of the throttling, due to the deformations produced in the warranty ring.

As saliências de material na tampa (1.3) de acordo com a invenção estão, em claro contraste com os filetes (20) no caso da patente US-A-4 846 361, todas situadas à mesma altura. No entanto, os referidos filetes estão situados respectivamente em três planos diferentes. Além disso, o ângulo (p) (fig. 3), que determina o passo do dispositivo dos filetes, tem de corresponder à subida da rosca de parafuso no gargalo da garrafa (coluna 3, linha 8 e seguintes). Primaria-mente, esta disposição muito específica de acordo com US-A- 2The projections of material on the cover (1.3) according to the invention are, in clear contrast to the threads (20) in the case of US-A-4 846 361, all located at the same height. However, said fillets are located respectively in three different planes. In addition, the angle (p) (Figure 3), which determines the pitch of the fillet device, must correspond to the rise of the screw thread on the neck of the bottle (column 3, line 8 et seq.). Primarily, this very specific provision according to US-A-2

VV

4 846 361 (coluna 3, linha 40 e seguintes) . Proporciona a segurança procurada. O reforço de material (1.4), de acordo com a invenção, na parte inferior da banda de garantia é além disso descontínuo. De acordo com a patente US A 864 361 (coluna 5, linha 6 e seguintes) a secção anular inferior (34) estende-se continuamente a toda a volta. A tampa de plástico roscada de acordo com a invenção é produzida de modo que toda a tampa, incluindo as saliências de material, os reforços e blocos de material são moldados por injecção de material plástico apropriado. A referida tampa de plástico roscada é utilizada para o fecho inicial mecânico, de recipientes vidro ou de plástico -em particular garrafas de PET - com roscas no gargalo, que se adaptam, e porções estranguladas, possivelmente em sistemas com dispositivos retentores do enroscamento, que respondem a variações descontínuas do binário de aperto.4 846 361 (column 3, line 40 et seq.). Provides security sought. The reinforcement of material (1.4) according to the invention in the lower part of the guarantee band is furthermore discontinuous. According to the patent US-A-864 361 (column 5, line 6 et seq.) The lower annular section 34 extends continuously all the way around. The screwed plastic cap according to the invention is produced so that the entire cap, including the protrusions of material, the reinforcements and blocks of material are injection molded from suitable plastic material. Said plastic screw cap is used for the initial mechanical closure of glass or plastic containers, in particular PET bottles, with adapted neck threads, and strangled portions, possibly in systems with thread-locking devices, which respond to discontinuous tightening torque variations.

Descrevem-se agora formas de realização preferidas, especificamente da tampa roscada com garantia, de acordo com a invenção, com mais pormenor e com referência aos desenhos anexos, cujas figuras representam: A fig. la, uma vista de uma parte interior planificada, ilustada esquematicamente, de um anel de garantia de acordo com a invenção, ePreferred embodiments, specifically of the threaded screw cap according to the invention, are now described in more detail and with reference to the accompanying drawings, which figures show: Fig. there is shown a schematically schematically schematic inner part of a guarantee ring according to the invention, and

As fig. lb e lc, cortes transversais indicados na fig. la (A-A',B-B' ) .FIG. 1b and 1c, cross-sections shown in Fig. (A-A ', B-B').

Em pormenor, na fig. la, a referência (1.1) designa as nervuras que estabelecem a ligação entre o anel de garantia (1.2) e o cilindro da tampa (não representado). 3In detail, in Fig. (1.1) designates the ribs which establish the connection between the locking ring (1.2) and the cap cylinder (not shown). 3

As saliências de material (1.3), na forma de garras deslizantes, que se encaixam por baixo da porção do estrangulamento, no lado inferior do gargalo, estão situadas na metade superior da banda de garantia. Entre as referidas farpas deslizantes, que se estendem para a borda inferior da banda de garantia, proporcionam-se alargamentos de material (1.4) de forma genericamente trapezoidal. A fig. lb mostra esquematicamente um corte feito pela linha (A-A1) (fig. la) . A saliência de material (1.3) tem uma superfície de contacto (1.5) redonda na vista em planta) e uma superfície de contacto deslizante (1.6), em forma de cunha. A fig. lc é um corte feito pela linha (B-B'): o alargamento de material (1.4) tem uma espessura de parede crescente no sentido da borda inferior do anel de garantia (1.7) .The material protrusions (1.3) in the form of sliding claws which engage below the bottleneck portion on the underside of the neck are located in the upper half of the guarantee band. Between said sliding barbs, which extend to the lower edge of the guarantee band, material enlargements (1.4) are generally trapezoidal. FIG. 1b schematically shows a cut made by the line (A-A1) (FIG. 1a). The projection of material (1.3) has a round contact surface (1.5) in plan view) and a wedge-shaped sliding contact surface (1.6). FIG. 1c is a cut taken along line B-B ': the widening of material 1.4 has a growing wall thickness towards the lower edge of the guaranty ring (1.7).

Lisboa, 21 de Janeiro de 2000 agente oficial da propriedade INDUSTRIALLisbon, January 21, 2000 official agent of industrial property

44

Claims (2)

REIVINDICAÇÕES 1. Tampa de plástico roscada, para fecho inicial controlado mecanicamente de recipientes que têm uma rosca de parafuso no gargalo, que comprende, na parede interior do cilindro oco da tampa, a contra-rosca correspondente à rosca do gargalo do recipiente, bem como uma pluralidade de saliências integrais na borda circular, conformada pela parede interior do cilindro oco da tampa e pela placa de cobertura, assegurando a finalização, virtualmente sem transição do movimento de abertura, por causa dum encosto na extremidade do gargalo do recipiente onde esbarram a ou as referidas saliências da tampa, caracterizada por comprender um anel de garantia de abertura (1.2) para a indicação garantida da primeira abertura, que compreende: - saliências de material (1.3), dispostas separadamente na metade superior e voltadas para dentro do anel de garantia, com superfícies de contacto arredondadas e componentes deslizantes estendendo-se estes de uma maneira afunilada aproximadamente para o centro do anel de garantia, em como - uma espessura (1.4) da parede ou do material do anel de garantia que varia na metade inferior, aumentando no sentido descendente e de maneira descontínua na periferia.A threaded plastic cap for mechanically controlled initial closure of containers having a screw thread in the neck, comprising, on the inner wall of the hollow cylinder of the cap, the counter-thread corresponding to the thread of the neck of the container, as well as a plurality of integral protrusions at the circular edge, formed by the inner wall of the hollow cylinder of the cap and the cover plate, ensuring the virtually unchanged termination of the opening movement, by virtue of an abutment at the end of the container neck where the or characterized in that it comprises an opening guarantee ring (1.2) for the guaranteed indication of the first opening, comprising: - material protrusions (1.3) arranged separately in the upper half and facing the inside of the guarantee ring , with rounded contact surfaces and sliding members extending in a tapered manner (1.4) of the wall or the material of the guaranty ring which varies in the lower half, increasing in a downwardly and discontinuous manner on the periphery. 2. Tampa de plástico roscada com um anel de garantia (1.2) de acordo com a reivindicação 1, caracterizada por apresentar alargamentos da parede (1.4) triangulares, semicirculares ou trapezoidais, situados na metade inferior do anel de garantia, respectivamente entre as saliências de material (1.3) da metade superior, com os 1 borda lados da base dos alargamentos coincidentes com inferior da banda (1.7) . Lisboa, 21 de Janeiro de 2000 AGENTE OFICIAL DA PROPRIEDADE INDUSTRIAL r u 2A threaded plastic cover with a guarantee ring (1.2) according to claim 1, characterized in that it has triangular, semicircular or trapezoidal wall enlargements (1.4) situated in the lower half of the guaranty ring respectively between the protrusions (1.3) of the upper half, with the side edges of the base of the enlargements coinciding with the lower of the band (1.7). Lisbon, January 21, 2000 OFFICIAL AGENT OF INDUSTRIAL PROPERTY r u 2
PT94119731T 1994-01-05 1994-12-14 PLASTIC COVER THAT MAY BE MECHANICALLY TEASED PT662427E (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH2694A CH687922A5 (en) 1994-01-05 1994-01-05 Plastic screw cap for mechanised initial closure of containers, esp. bottles
CH2594A CH687695A5 (en) 1994-01-05 1994-01-05 Retired attachable warranty screw cap, in particular for application to glass and plastic bottles.

Publications (1)

Publication Number Publication Date
PT662427E true PT662427E (en) 2000-04-28

Family

ID=25683287

Family Applications (1)

Application Number Title Priority Date Filing Date
PT94119731T PT662427E (en) 1994-01-05 1994-12-14 PLASTIC COVER THAT MAY BE MECHANICALLY TEASED

Country Status (5)

Country Link
EP (1) EP0662427B1 (en)
AT (1) ATE186511T1 (en)
DE (1) DE59408916D1 (en)
ES (1) ES2140494T3 (en)
PT (1) PT662427E (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19521924C2 (en) * 1994-06-24 1999-08-05 Lange Gmbh Dr Bruno Screw cap for a vessel and device for automatically closing the vessel

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4232499A (en) * 1978-08-01 1980-11-11 John H. Holstein Capper chuck
US4289248A (en) * 1979-10-15 1981-09-15 Becton, Dickinson And Company Container closure assembly having intermediate positioning means
EP0414860B1 (en) * 1989-03-14 1993-09-01 Crown Cork AG Plastic screw cap
ES1009616Y (en) * 1989-03-14 1990-02-16 Ultimos Desarrollos, S.A. (Uldesa) STOP DEVICE FOR PLUG THREADS.
DE4212141A1 (en) * 1992-04-10 1993-10-14 Juergen Sooth Sealing cover

Also Published As

Publication number Publication date
DE59408916D1 (en) 1999-12-16
ES2140494T3 (en) 2000-03-01
EP0662427A1 (en) 1995-07-12
ATE186511T1 (en) 1999-11-15
EP0662427B1 (en) 1999-11-10

Similar Documents

Publication Publication Date Title
US4301937A (en) Blow molded plastic bottle and plastic cap
US4177906A (en) Blow molded plastic bottle and plastic cap
US4494664A (en) Tamper evident closure
US4741447A (en) Linerless cap closure
US4006837A (en) Container closure
PL172757B1 (en) Closure provided with a protection of immediately noticeable state
US4500005A (en) Tamper-evident cap assembly for a container
US4715506A (en) Tamper resistant closures
US3310191A (en) Screw-type closure
US3463340A (en) Screw cap with locking means
CA2157398A1 (en) Snap-on, screw off cap and container neck
US3967745A (en) Self-positioning child-resistant closure
PL196557B1 (en) Container closure, cpmmodity package consisting of a container and said container closure, method of making said container closure as well as method of filling and subsequent capping filled container by means of said container closure
PT8516U (en) CONTAINER RESISTANT TO UNINTENDED OPENING AND OPENING BY CHILDREN AND CLOSING ASSEMBLY OF THE SAME
JPS6216351A (en) Opening elucidating vessel
GB2034674A (en) A Cap for a Bottle or Other Container
US3212663A (en) Hermetic closure for containers
US3297185A (en) Plastic bottle finish
US4365721A (en) Child resistant closure and container assembly
KR950031805A (en) Plastic cap
EP0262868B1 (en) Guarantee band for a container closure
US4448319A (en) Screw cap
SU747408A3 (en) Screw-on cap made of polymeric material for corking bottles
CA1180303A (en) Pilferproof cap
GB2225778A (en) Tamper evident closure