EP0096351A1 - Capuchon inviolable - Google Patents

Capuchon inviolable Download PDF

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Publication number
EP0096351A1
EP0096351A1 EP83105399A EP83105399A EP0096351A1 EP 0096351 A1 EP0096351 A1 EP 0096351A1 EP 83105399 A EP83105399 A EP 83105399A EP 83105399 A EP83105399 A EP 83105399A EP 0096351 A1 EP0096351 A1 EP 0096351A1
Authority
EP
European Patent Office
Prior art keywords
cap
band
bridges
screw
abutments
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Withdrawn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
EP83105399A
Other languages
German (de)
English (en)
Inventor
Robert Melvin Chartier
Jean Papineau Richard
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.)
Consumers Glass Co Ltd
Original Assignee
Consumers Glass Co Ltd
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 Consumers Glass Co Ltd filed Critical Consumers Glass Co Ltd
Publication of EP0096351A1 publication Critical patent/EP0096351A1/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Withdrawn legal-status Critical Current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
    • 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
    • B65D41/3452—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 with drive means between closure and tamper element

Definitions

  • This invention relates to plastic caps having a dependent band interconnected thereto by a plurality of bridges for use in indicating tampering or pilfering with the container contents.
  • the plastic cap is provided with drive devices which drive the band with the cap to snap-fit the band over the bead on a container neck as the cap is twist applied to the container.
  • French patent 1,581,775 to S.A. Albaco discloses a pilferproof cap having a type of drive system which ensures that the band rotates with the cap, as the band is snap-fitted over a bead on the container. This protects the bridges which connect the band to the tearstrip of the pilferproof arrangement.
  • the drive is provided in the form of closely spaced teeth and notch portions in the pilferproof band and tear part. The teeth and notches abut during cap application to rotate the band with the cap as it is snap-fitted over the container bead.
  • a similar form of drive mechanism is disclosed in German Offenlegungsschrift 1,955,047 to R. Finke. Bridges are used to interconnect the pilferproof band portion to the cap.
  • the pilferproof cap design provides considerable spacing between all components of band and cap to facilitate injection molding by improved bridge designs for interconnecting the band to cap.
  • a screw-on plastic cap with tamper indicating provision comprises a cap with depending band having an internal shoulder adapted for snap-fit engagement with a bead on a threaded container neck.
  • a plurality of means connect the band to the cap.
  • the connecting means may be in the form of a plurality of bridges which readily break when the cap is unscrewed from the container neck with the band shoulder engaged with a bead on the threaded container neck.
  • a plurality of cooperating drive devices are associated with the cap and band to drive the band with the cap as it is snap-fitted over the bead on the threaded container neck, when the cap is screw applied to the container.
  • Each of the drive devices comprises cooperating abutments on the cap and band which are normally disengaged.
  • the abutments are spaced apart with each abutment associated with the cap having its lower portions spaced above the upper portion of the abutment associated with the band and the abutments are all spaced from the respective bridges.
  • the bridges are sufficiently weak to readily flex as the band is applied over the bead to allow the band to move upwardly towards the cap to engage the abutments to drive the band with the cap to ensure the integrity of the bridges.
  • the arrangement is such that sufficient spacing is provided between the cap and band in between cooperating abutments of the drive devices to facilitate molding.
  • the bridges for interconnecting the band to the cap may be very thin and fragile so as to be considered as filaments.
  • the filaments are sufficiently weak to readily sever upon unthreading the cap from the container to indicate that the container has been pilfered.
  • the filaments are preferably obliquely oriented relative to the cap longitudinal axis to flex and readily permit the band to move towards the cap, as the band is snap-fitted over the bead on the threaded container neck. This movement engages the drive devices to drive the band with the cap to ensure the integrity of the filaments.
  • the bridges may all be sloped upwardly in the direction of twist application of the cap onto the container.
  • the bridges readily flex as the band is snap-fitted over the bead on the container to allow movement of the band towards the cap and cooperate with the circumferential shifting of the band relative to the cap in moving the abutments towards one another so that they can readily engage and drive the band with the cap.
  • Plastic caps for use in the container closure field are normally formed by injection molding techniques which are well understood by those skilled in the art.
  • the cap may be formed from various plastic materials which are commonly used in the injection molding of plastic caps. Preferred materials are polyethylene, polypropylene, and copolymers of polyethylene and polypropylene.
  • the caps may have integrally formed on their undersides, fins or the like for purposes of sealing with the container rim and neck portions, or the cap may be adapted for use with a liner sealer.
  • the cap 10 comprises a cap body portion 12 with depending band 14 which are concentric about cap longitudinal axis 15.
  • the band is interconnected to the cap by a plurality of bridges 16.
  • the bridges are circumferentially spaced apart and according to this embodiment, the bridges are approximately evenly spaced apart.
  • the cap 10 is adapted for twist application to a threaded container neck portion generally designated 18. Threads 20 are provided on the exterior of the container neck. Beneath the threads is a bead 22 integrally provided on the bottle neck, where the band 14 is adapted to be snap-fitted over the bead 22 as the cap is twist applied to the container.
  • the cap seals the container by engagement with the container rim 24 and optionally with proximate interior and exterior surfaces of the container neck.
  • a plurality of drive devices generally designated 26 are provided which drive the band 14 with the cap to prevent breakage of the bridges 16 as the band is snap-fitted over the bead 22.
  • the bottom portion 36 of the cap side wall 28 has a plurality of projections 38 extending downwardly therefrom and which form a component of the drive device 26.
  • the other component of the drive device 26 is provided by the recess 40 in the band 14.
  • the band as more clearly shown in Figure 2, is connected to the lower portion 36 of the cap by the bridge 16 which slopes upwardly in the direction of cap twist application designated by arrow 42.
  • FIG. 3 Details of the drive device 26 is shown more clearly in Figure 3 where the recess 40 provides a vertical face 44 and projection 38 provides a vertical face 46. Faces 44 and 46 constitute the cooperating abutments of the drive device.
  • the abutments or the operative portions of abutments 44 and 46 are vertically spaced apart, such that the lower portion of face 46 is slightly above or approximately in the same plane as the upper portion of face 44. As can be seen, they are normally disengaged and become engaged by movement of the band 14 towards the cap lower portion 36. The band movement occurs during twist application of the cap to the container as the band internal shoulder 48 engages the bead 22 on the container neck 18.
  • FIG 4 The commencement of application of the cap 10 to the container neck 18 is shown in Figure 4, where the threads 34 on the interior surface of side wall 28 engage the threads 20 on the container neck 18.
  • Another common form of sealer is the liner 58 which is located beneath the top wall 30 of the cap. It is squeezed against the rim 24 of the container neck 18 to seal the container in the normal manner.
  • the internal shoulder 48 on the band 14 engages the lead in portion 50 on the bead 22.
  • the internal shoulder 48 is rounded at 52 so as to cammingly engage the sloped surface 50. This assists in expanding circumferentially the band 14 as the shoulder 48 is snapped over the bead 22.
  • the bridge 16 is the same width as the upper portion 55 of the band 14; however, it tapers inwardly to a thinner portion at 56 where it joins the lower region 36 of the cap 10. This is to ensure that when the bridges are broken, the severance is made at the juncture 56 with the cap.
  • the band 14 continues to spread outwardly as the internal shoulder 48 is pushed further down the bead 22.
  • Considerable resistance is encountered in pushing the internal shoulder 48 of the band 14 downwardly over the bead 22.
  • the band shoulder in engaging the bead would lag behind the cap body 12 and due to the weakness of the bridges 16, they would break thus spoiling the pilferproof feature of the cap.
  • the drive devices 26 are actuated by flexing of the bridges 16 to allow the band 14 to move towards the cap lower portion 36 to engage the abutment faces 44 and 46.
  • the band 14 is driven with the cap in the direction of arrows 42 to ensure that the bridges 16 are not overstressed or stretched to the point of breaking. It is apparent that the physical characteristics of the bridges cooperate with the drives, because the bridges have to be sufficiently weak to permit engagement of the drives. In turn, upon engagement of the drives, the bridges are protected from breakage.
  • the arrangement according to this invention provides considerable spacing between the band 14 and the cap 12; and between the operative faces 44, 46 of the drive device 26.
  • the bridges are designed so as to be sufficiently flexible to allow movement of the band 14 towards the cap as the shoulder 48 of the band engages and is pushed over bead 22 of the container.
  • the bridges 16 flex principally at their junctures 56 with the cap bottom portion 36 and at 57 with the band upper portion 60.
  • the bridge 16 in essence collapses which allows the projection 38 to move into the recess 40. Due to the upward slope of the . bridge 16 relative to the direction of application, as the bridge 16 collapses the natural movement for the band 14 is in a direction opposite to arrow 42.
  • the projection 38 is of a height greater than the depth of recess 40.
  • the lower portion 62 of the projection 38 bottoms out on base portion 64 of the recess 40.
  • the difference in height between the projection 38 and the recess 40 may be selected to be equal to at least the width of the filament 16 to preclude crushing of the filament between the cap and band.
  • the band 14 With continued twist application of the cap to the container, the band 14 is forced over the bead 22 by either the projections bottoming out on the recesses or some other contact between the band and cap which exerts the downward component of force for snapping the band over the bead 22. As more clearly shown in Figure 7, continued twist application of the cap 12 has snapped. the band 14 over the bead 22.
  • the internal shoulder 28 has a ledge 66 which abuts the underside 68 of the bead 22 to form a secure engagement of the band 14 with the bead 22.
  • the internal portion of the band 14 above the shoulder 48 and which is designated 70 in Figure 7, may have an internal diameter slightly less than the external diameter of the bead 22 so that the band contacts the bead after the shoulder 48 is snapped past the bead 22. Depending upon tolerances there may or may not be sufficient frictional engagement between the interior surface of the band 14 and the bead 22 which may allow the band to move slightly downwardly after the band is snap fitted over the shoulder 22.
  • the cap When it is desired to open the container as demonstrated in Figure 8, the cap is rotated in the direction of arrow 72.
  • the cap has a first position designated at 12 and a second position as shown in dot at 12a.
  • the bridge 16 is extended from the position shown at 16 to the dotted position at 16a. While the cap is unthreaded in the direction of arrow 72, the bridge 16 continues to be distended or stretched as the ledge 66 on the shoulder 48 of the band 14 engages the underside 68 of bead 22.
  • the snug contact between the band interior portion 70 and the bead 22 maintains the interlock between faces 66 and 68 to ensure that the band will not snap past bead 22.
  • the bridges 16 continue to be stretched as the cap 12 is unthreaded in the direction of arrow 72.
  • the stretched bridges 16 break at a thinner portion 56 to leave a thin nub portion 74 on the lower portion 36 of the cap 12.
  • the projection 38 is clear of the recess 40 so that there is no interference of the drive device with the band in removal of the cap.
  • Figure 10 shows the projections 38 remaining on the underside of the cap and may be considered unsightly or uncomfortable for the user in grasping the cap.
  • Alternative arrangements for the drive device are shown in Figures 11, 12 and 13.
  • Figure 11 shows the cap 12 having on its lower portion 36 a depending skirt 80 which envelopes the projections 38 so that they are not exposed.
  • the band 14 has its upper portion 60 within the skirt 80 where the bridges 16 flex, so that the operative abutment drive faces 44 and 46 may engage.
  • the bridge 16 will flex and allow the band to approach the cap as demonstrated by arrows 94 to engage the operative faces of the drive devices. This ensures integrity of the bridges 16 as the band 14 has its shoulder portion 48 snap fitted over the container bead.
  • the preferred arrangement for the bridges is that all the bridges are sloped upwardly relative to the direction of application of the cap to provide parallelogram-type linkages.
  • the bridges or filaments flex at their junctures with the band and cap to allow a circumferential shift of the band relative to the cap which cooperates with the band tending to lag behind the cap as it is applied. This action moves the operative faces of the drive devices towards one another, so that they engage before the bridges are overstressed.
  • bridges are shown in the preferred embodiment of the invention, it is appreciated that other bridge arrangements are possible which are inclined in some other manner relative to the longitudinal axis of the cap. This inclination of the bridges provides ready flexing of the bridges in allowing movement of the hand towards the cap.
  • the cap is particularly suited for application to large mouth jars, such as food jars and the like.
  • the positive drives for protecting the bridges ensure that the band, with larger internal shoulder, is snapped over the bead on the jar. This is beneficial when the jars are of glass because of the larger variation in dimensions of the bead diameter on the larger glass jars.
  • the positive form of drives are particularly suited for high speed twist cap application, for example, twist applications at speeds in excess of 240 rpm.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Closures For Containers (AREA)
EP83105399A 1982-06-03 1983-05-31 Capuchon inviolable Withdrawn EP0096351A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CA000404406A CA1180303A (fr) 1982-06-03 1982-06-03 Capuchon inviolable
CA404406 1982-06-03

Publications (1)

Publication Number Publication Date
EP0096351A1 true EP0096351A1 (fr) 1983-12-21

Family

ID=4122918

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83105399A Withdrawn EP0096351A1 (fr) 1982-06-03 1983-05-31 Capuchon inviolable

Country Status (4)

Country Link
EP (1) EP0096351A1 (fr)
JP (1) JPS5962461A (fr)
AU (1) AU570212B2 (fr)
CA (1) CA1180303A (fr)

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2140787A (en) * 1983-06-01 1984-12-05 Wicanders Ab Screw cap with security ring
US4573601A (en) * 1983-06-01 1986-03-04 Wicanders Ab Screw cap with security ring
EP0225394A1 (fr) * 1984-06-13 1987-06-16 ZELLER PLASTIK Koehn, Gräbner & Co. Fermeture inviolable
EP0228618A2 (fr) * 1985-12-19 1987-07-15 Pharma-Gummi Wimmer West GmbH Fermeture de bouchage inviolable pour récipient
EP0254673A1 (fr) * 1986-07-11 1988-01-27 Interplastic AG Couvercle de récipient muni d'une bague de garantie
FR2602489A1 (fr) * 1986-08-11 1988-02-12 Owens Illinois Closure Inc Emballage avec indicateur de violation
EP0281284A2 (fr) * 1987-03-04 1988-09-07 Cope Allman Plastics Limited Fermeture inviolable
GB2254071A (en) * 1991-03-26 1992-09-30 Chesholme Ltd Closure member
WO1994018085A1 (fr) * 1993-02-09 1994-08-18 Le Moulage Automatique Dispositif de bouchage pour recipient
FR2706426A1 (fr) * 1993-06-10 1994-12-23 Moulage Automatique Sa Dispositif de bouchage pour récipient.
WO1995026910A1 (fr) * 1994-03-30 1995-10-12 Safety Cap System Ag Bouchon filete, en particulier en plastique, destine a fermer une bouteille ou similaire
EP0679584A1 (fr) * 1994-04-27 1995-11-02 Japan Crown Cork Co. Ltd. Capuchon en plastique
US5913436A (en) * 1995-02-11 1999-06-22 Safety Cap System Ag Screw cap, specifically comprised of plastic, for closing a bottle or the like
DE102011006845A1 (de) * 2011-04-06 2012-10-11 Robert Bosch Gmbh Schraubverschluss mit Garantieband

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59121352U (ja) * 1983-02-05 1984-08-15 三笠産業株式会社 瓶蓋

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1154369B (de) * 1960-07-08 1963-09-12 Alfred Fischbach Kunststoff Sp Als Originalverschluss ausgebildete Schraubkappe
FR1536459A (fr) * 1967-07-07 1968-08-16 Perfectionnement aux bouchons inviolables à vis pour récipients
FR1581775A (fr) * 1968-08-05 1969-09-19
FR2298255A7 (fr) * 1975-01-20 1976-08-13 Astra Plastique Perfectionnements aux dispositifs de bouchage du type inviolable
EP0052804A1 (fr) * 1980-11-24 1982-06-02 Consumers Glass Company Limited Bouchon inviolable
EP0080846A1 (fr) * 1981-11-30 1983-06-08 Johnsen & Jorgensen (Plastics) Limited Bouchon inviolable à vis

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5728767A (en) * 1980-07-16 1982-02-16 Crown Cork Japan Vessel cover in synthetic resin having pilfer-proof characteristic

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1154369B (de) * 1960-07-08 1963-09-12 Alfred Fischbach Kunststoff Sp Als Originalverschluss ausgebildete Schraubkappe
FR1536459A (fr) * 1967-07-07 1968-08-16 Perfectionnement aux bouchons inviolables à vis pour récipients
FR1581775A (fr) * 1968-08-05 1969-09-19
FR2298255A7 (fr) * 1975-01-20 1976-08-13 Astra Plastique Perfectionnements aux dispositifs de bouchage du type inviolable
EP0052804A1 (fr) * 1980-11-24 1982-06-02 Consumers Glass Company Limited Bouchon inviolable
EP0080846A1 (fr) * 1981-11-30 1983-06-08 Johnsen & Jorgensen (Plastics) Limited Bouchon inviolable à vis

Cited By (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2140787A (en) * 1983-06-01 1984-12-05 Wicanders Ab Screw cap with security ring
US4573601A (en) * 1983-06-01 1986-03-04 Wicanders Ab Screw cap with security ring
EP0225394A1 (fr) * 1984-06-13 1987-06-16 ZELLER PLASTIK Koehn, Gräbner & Co. Fermeture inviolable
EP0228618A2 (fr) * 1985-12-19 1987-07-15 Pharma-Gummi Wimmer West GmbH Fermeture de bouchage inviolable pour récipient
EP0228618A3 (en) * 1985-12-19 1988-04-20 Pharma-Gummi Wimmer West Gmbh Origin-protected container closure
EP0254673A1 (fr) * 1986-07-11 1988-01-27 Interplastic AG Couvercle de récipient muni d'une bague de garantie
FR2602489A1 (fr) * 1986-08-11 1988-02-12 Owens Illinois Closure Inc Emballage avec indicateur de violation
GB2202217B (en) * 1987-03-04 1990-12-05 Cope Allman Plastics Ltd Tamper-evident closures
EP0281284A3 (en) * 1987-03-04 1989-03-22 Cope Allman Plastics Limited Tamper-evident closures
EP0281284A2 (fr) * 1987-03-04 1988-09-07 Cope Allman Plastics Limited Fermeture inviolable
GB2202217A (en) * 1987-03-04 1988-09-21 Cope Allman Plastics Ltd Tamper-evident closures
GB2254071A (en) * 1991-03-26 1992-09-30 Chesholme Ltd Closure member
CN1040311C (zh) * 1993-02-09 1998-10-21 自动铸模公司 容器的封口装置
WO1994018085A1 (fr) * 1993-02-09 1994-08-18 Le Moulage Automatique Dispositif de bouchage pour recipient
FR2706426A1 (fr) * 1993-06-10 1994-12-23 Moulage Automatique Sa Dispositif de bouchage pour récipient.
WO1995026910A1 (fr) * 1994-03-30 1995-10-12 Safety Cap System Ag Bouchon filete, en particulier en plastique, destine a fermer une bouteille ou similaire
AU689544B2 (en) * 1994-03-30 1998-04-02 Safety Cap System Ag Screw cap, especially made of plastic, for closing a bottle or the like
US5573128A (en) * 1994-04-27 1996-11-12 Japan Crown Cork Co., Ltd. Tamper-evident plastic cap with engaging stopper pieces
EP0679584A1 (fr) * 1994-04-27 1995-11-02 Japan Crown Cork Co. Ltd. Capuchon en plastique
US5913436A (en) * 1995-02-11 1999-06-22 Safety Cap System Ag Screw cap, specifically comprised of plastic, for closing a bottle or the like
DE102011006845A1 (de) * 2011-04-06 2012-10-11 Robert Bosch Gmbh Schraubverschluss mit Garantieband

Also Published As

Publication number Publication date
AU1757183A (en) 1985-02-07
CA1180303A (fr) 1985-01-02
JPS5962461A (ja) 1984-04-09
AU570212B2 (en) 1988-03-10

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Legal Events

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PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): BE CH DE GB LI NL

17P Request for examination filed

Effective date: 19840613

17Q First examination report despatched

Effective date: 19871009

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 19880430

RIN1 Information on inventor provided before grant (corrected)

Inventor name: CHARTIER, ROBERT MELVIN

Inventor name: RICHARD, JEAN PAPINEAU