EP0623522A1 - Capuchon à vis avec sécurité pour enfant - Google Patents

Capuchon à vis avec sécurité pour enfant Download PDF

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Publication number
EP0623522A1
EP0623522A1 EP94105684A EP94105684A EP0623522A1 EP 0623522 A1 EP0623522 A1 EP 0623522A1 EP 94105684 A EP94105684 A EP 94105684A EP 94105684 A EP94105684 A EP 94105684A EP 0623522 A1 EP0623522 A1 EP 0623522A1
Authority
EP
European Patent Office
Prior art keywords
cap
inner cap
outer cap
closure
screw cap
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Withdrawn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
EP94105684A
Other languages
German (de)
English (en)
Inventor
Günter Jakob 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.)
Bericap 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 EP0623522A1 publication Critical patent/EP0623522A1/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Withdrawn legal-status Critical Current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
    • B65D50/00—Closures with means for discouraging unauthorised opening or removal thereof, with or without indicating means, e.g. child-proof closures
    • B65D50/02—Closures with means for discouraging unauthorised opening or removal thereof, with or without indicating means, e.g. child-proof closures openable or removable by the combination of plural actions
    • B65D50/04—Closures with means for discouraging unauthorised opening or removal thereof, with or without indicating means, e.g. child-proof closures openable or removable by the combination of plural actions requiring the combination of simultaneous actions, e.g. depressing and turning, lifting and turning, maintaining a part and turning another one
    • B65D50/041—Closures with means for discouraging unauthorised opening or removal thereof, with or without indicating means, e.g. child-proof closures openable or removable by the combination of plural actions requiring the combination of simultaneous actions, e.g. depressing and turning, lifting and turning, maintaining a part and turning another one the closure comprising nested inner and outer caps or an inner cap and an outer coaxial annular member, which can be brought into engagement to enable removal by rotation

Definitions

  • the present invention relates to a plastic screw cap for container closures with child protection, with an inner cap, the internal thread of which can be screwed onto the neck or the socket of a container for receiving a closure, and with an outer cap which can be freely rotated in the opening direction with respect to the inner cap, and outer cap engaging elements are provided which interlock positively and preferably also form-fit when the closure is screwed on, while engaging elements can only be positively engaged when the engaging elements are screwed on when the tangential screwing force acting on the outer cap is exerted, in addition to the tangential force acting on the outer cap so that the inner cap is rotated with the outer cap.
  • the nozzle can optionally be a part to be attached separately to the container.
  • closures or screw caps generally referred to as "closures with child protection" are known in the prior art in various variations.
  • the inner cap itself is generally not accessible and is encompassed by the outer cap, and securing elements also ensure that the outer cap cannot be easily removed from the inner cap.
  • an additional axial pressure must be exerted on the outer cap so that the outer cap and inner cap engage in a non-positive manner and with the rotation of the outer cap also the inner cap, which forms the actual, threaded cap, is taken in the opening direction.
  • an asymmetrical toothing is provided on the inside of the cap bottom of the outer cap and on the outside of the cap bottom of the inner cap, wherein when the outer cap is turned in the closing direction, steep flanks of the two toothings come to rest against each other, so that a positive engagement occurs and the inner cap is easily taken along when the outer cap is rotated in the closing direction, while conversely when the outer cap is rotated in the opening direction, relatively flat tooth flanks lie against one another or at least one of the toothings has a flat flank in this direction which is slightly above the opposite tooth flank or the projection slides away from the other part when the outer cap is only rotated in the opening direction. Sufficient flank pressure is required to prevent these tooth flanks from sliding open, thus creating a frictional engagement between the outer and inner caps.
  • the more or less resilient cylinder jacket of the outer cap is pressed in in the radial direction, preferably from opposite sides, with a corrugation on the inside of the jacket of the outer cap and a matching corrugation on the outside of the jacket of the inner cap in the radially indented areas comes into engagement with each other, so that in this so-called “ovalizing" of the outer cap, a connection is established between the outer cap and the inner cap both in the opening and in the closing direction.
  • Such closures are intended to prevent small children from coming into contact with contents of the containers which are dangerous for them, such as medication, cleaning agents, alcohol, etc., it being assumed that children at a certain age are already able to use simple screw closures to open by turning, but at the same time have no experience and also do not have the sufficient strength and dexterity to exert an additional, non-tangential force on the (outer) closure cap in addition to the mere unscrewing movement, but in particular neither recognize nor know that one additional strength in certain direction to be able to open the shutter.
  • the outer cap and inner cap must have a certain amount of guidance relative to one another, so that, for example, opening of the closure is not possible solely because of a more or less accidental tilting of the outer cap with respect to the inner cap, so that the engagement elements also without exerting any additional force are in engagement with one another in such a way that the closure can be screwed on. If the guidance is inadequate, it could otherwise also happen that the engagement elements do not engage correctly with one another even when the screws are screwed on, so that the screwing of such closures would also be difficult.
  • the outer cap is therefore guided on the inner cap generally via the cylindrical outer wall of the inner cap and the cylindrical inner wall of the outer cap.
  • closures are not equally suitable for all types of filling goods.
  • the present invention has for its object to provide a closure or a plastic screw cap with the features mentioned, which has a high degree of functional reliability regardless of the type of filling material used and is easy to operate.
  • the screw cap mentioned at the outset additionally has the features that the bottoms of the inner cap and outer cap have a cylindrical projection arranged concentrically to the closure axis on one floor and a cylindrical recess likewise arranged concentrically to the closure axis on the other floor interlock, the outer diameter of the recess being slightly larger than the outer diameter of the extension.
  • cylindrical may also include a hollow cylinder, so that also an embodiment in which the recess is designed, for example, in the form of a circular circumferential groove, while a circular engagement is a circular engagement which fits into the groove circumferential web, which in other words forms a (hollow) cylindrical extension, is provided, falls under the wording of claim 1 described above.
  • an embodiment of the invention is preferred in which the cutout extends through the bottom of the associated cap and, moreover, in particular such an embodiment in which the cutout on the bottom of the outer cap and the cylindrical extension is designed as an outer, cylindrical extension of the bottom of the inner cap.
  • the recess can also easily have the form of a depression in the respective cap base without reaching completely through it, for example in the form of a circular hole.
  • the engaging elements are preferably provided on the end face on the outer and inner cap, i.e. on the one hand on the outside of the bottom of the inner cap and on the other hand on the inside of the bottom of the outer cap, facing each other so that they can engage and are also located radially outside the cylindrical projection and the recess.
  • retaining elements are expediently provided, which prevent the outer and inner caps from being pulled apart.
  • These retaining elements can have the shape of projecting shoulders, for example, in that the inner wall of the outer cap projects inwards near the edge of the cap, while conversely a shoulder or a projection projects outwards from the outer wall of the inner cap near the edge.
  • shoulders or projections of this type are at least partially circumferential
  • the inner diameter of the outer cap is smaller than the outer diameter of the inner cap in the area of the projections or flanges, and these flanges or projections have ramps or inclined surfaces on their sides facing away from one another in the assembled state, that make it easier to put the two caps together.
  • At least the inwardly projecting flange of the outer cap is interrupted over two opposite sectors in the range of approximately 10 to 60 °, with corrugations being provided on the inner circumferential surface of the outer cap at least in this area, which during ovalization of the Outer cap by pressing opposing wall sections, these corrugations engage with corresponding corrugations on the outer circumferential surface of the inner cap and thus establish a non-positive connection between the outer and inner caps.
  • the omission of the flange in this area to be compressed makes it easier to press the corrugations of the outer cap onto that of the inner cap, although this feature is not essential.
  • the flanges or projections on the outer cap and the inner cap are positioned in the axial direction so that the inner cap accommodated in the outer cap has sufficient axial play, so that the teeth on the end faces or bottom surfaces also do not exert any axial force when screwing on Pressure can easily slide over each other.
  • the axial play must therefore correspond at least to the height of the engagement elements or teeth on the bottom of the inner cap or outer cap.
  • the outer cap has corrugations on its outside precisely in the areas where corresponding corrugations are also provided on the inside for engagement with the inner cap. In this way, the user recognizes the areas in which the outer cap is to be grasped and compressed in order to bring it into firm engagement with the inner cap.
  • the corrugations on the outside of the outer cap also make it easier to apply the torque required to open and close the closure.
  • FIG. 1 one can see in the right third a section through the inner cap 1 and the outer cap 2 approximately in a plane containing the axis 14 of the closure.
  • the central area of FIG. 1 only the outer cylinder jacket wall 18 of the outer cap 2 is shown broken away, so that the outer wall of the inner cap 2 can be seen.
  • the left third of FIGS. 1 and 2 essentially only the outer wall of the outer cap 2 can be seen.
  • the basic shape of the inner cap 1 and also of the outer cap 2 is that of a cylinder closed on one end face. Deviating from this simple cylindrical basic shape, the bottom 3 of the inner cap 1 has a cylindrical extension: 5, while the bottom 4 of the outer cap 2 has a circular recess 6, in which the cylindrical extension 5 engages appropriately with little play.
  • the inner cap also has an internal thread 13 and on its outside in the vicinity of its open end a circumferential flange 11 with a radially extending contact surface, which in FIG. 1 rests on a radially extending surface of a flange 12 which is at least partially circumferential on inner open end of the cylinder jacket wall of the outer cap 2 is provided.
  • engaging elements 7 are arranged on the bottom 3 of the inner cap and on the bottom 4 of the outer cap. 8 disengaged.
  • These engagement elements 7, 8 consist of a type of asymmetrical teeth, each with a steep flank and a ramp surface, the engagement elements 7, 8 being arranged and designed such that when the outer cap 2 is rotated in the closing direction, the steep flanks of the teeth 7, 8 with one another Engage while rotating in the opposite direction, ie in the opening direction of the closure, the relatively flat inclined ramp surfaces of the teeth 7, 8 engage with each other.
  • the sliding of the ramp surfaces of the teeth 7, 8 over one another can only be prevented by simultaneously exerting an axial (downward in FIG. 1) pressure on the outer cap 2 when screwing on, which causes the torque and the inclined position of the ramp surfaces of the teeth 7, 8 acting, dispersing axial force compensated.
  • an axial pressure exerted on the outer cap 2
  • the axial pushing apart of the outer cap and the inner cap can be prevented, so that the inner cap 1 is carried along by the ramp surfaces of the teeth 7, 8, which are not sliding against one another, when the outer cap 2 rotates in the opening direction becomes.
  • the cylindrical extension: 5 engages in the circular recess 6 of the base 4 of the outer cap 2 and ensures clean guidance when the outer cap is turned relative to the inner cap, in particular when turning in the opening direction if the sloping flanks of the teeth 7, 8 are to slide over one another in the function as child safety devices. Tilting is also avoided by the possibly engaging flanges 11, 12, which allow only a limited axial play between the outer cap and the inner cap.
  • the inner cap 1 and outer cap 2 also have further engagement elements in the form of the corrugations 9 and 10.
  • the inner cap 1 with its corrugation 9 on its outer circumferential surface and the outer cap 2 with its corrugation 10 on its inner circumferential surface are dimensioned such that when the outer cap and inner cap have their normal circular shape, the smallest inner diameter of the outer cap is still greater than the largest outer diameter of the inner cap in the area of the respective corrugations 9, 10.
  • the corrugations 9, 10 do not engage with one another, and the outer cap 2 would be freely rotatable in both directions with respect to the inner cap 1, unless it was the further engagement elements 7, 8 take effect.
  • the outer cap 2 preferably also has an external toothing or corrugation 16 in the regions to be compressed, which facilitate gripping and applying a torque and at the same time are a marking for the region to be compressed, since the inner corrugation 10 of the outer cap preferably only extends over two opposite angular sectors extends in the order of 30 to 80 °, so that a compression of the outer cap 2 outside of these sectors would not produce any engagement between the corrugations 9, 10.
  • the flange 12 and possibly also the flange 11 are interrupted in a sector corresponding to the corrugation sector or shortened in the radial direction, which reduces the compression of the outer cap 2 and that in Intervention bringing the corrugations 9, 10 facilitated.
  • the concentric guidance of the outer cap relative to the inner cap with the help of the cylindrical extension 5 engaging in the recess 6 is of essential importance, namely only by a clean concentric guidance of the left part of the figure 3 shown state of a free space or play between the teeth 9, 10 over the entire circumference of the Inner cap or in the sector areas where both teeth 9, 10 are present can be ensured.
  • the closure according to the invention thus ensures a high degree of functional reliability, the preferred embodiment with a combination of the engagement elements 7, 8 and 9, 10 being preferred.
  • the recess 6 extends completely through the base 4 of the outer cap 2, a bulging of the cap base 3 in the central region, i.e. Do not disturb in the area of the cylindrical extension 5, since the cap base 4 is left free in this area.
  • a radial expansion of the shell of the cap 1 due to a swelling content of a container or due to the build-up of an internal pressure also does not affect the functionality of the closure, since the game or the free space 15 can in any case be chosen so large that the without compressing the Walls of the outer cap 2 no engagement between the corrugations 9, 10 arises.
  • a so-called guarantee band is arranged on the inner sealing cap at the lower edge.
  • a guarantee tape is typically connected to the lower edge of a screw cap, in this case the inner cap, via a series of tear-off webs and is otherwise designed in such a way that it hooks with a projection on the neck or neck of the container, so that when the cap is unscrewed the guarantee band is held on the container neck, the connecting webs tearing and thus the guarantee band as a whole being torn off or separated from the closure cap.
  • a loose guarantee band is then a sign that the closure has already been opened.
  • the hooking of the guarantee band with the container neck can in principle be achieved in a manner similar to the previously described hooking or securing of the outer closure cap to the inner closure cap via the projections or flanges 11, 12, whereby in the case of guarantee bands it is customary - but not mandatory - is that these consist of individual, interconnected segments and each of the segments has its own small projection, which hooks with a corresponding flange on the neck or neck of a container after screwing on the closure cap in question.
  • the outer cap and the inner cap are two parts which are not firmly connected and which are to be produced separately from one another, the tear-off band or guarantee band being fastened to the inner cap.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Closures For Containers (AREA)
EP94105684A 1993-05-05 1994-04-13 Capuchon à vis avec sécurité pour enfant Withdrawn EP0623522A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4314754A DE4314754A1 (de) 1993-05-05 1993-05-05 Schraubkappe mit Kindersicherung
DE4314754 1993-05-05

Publications (1)

Publication Number Publication Date
EP0623522A1 true EP0623522A1 (fr) 1994-11-09

Family

ID=6487166

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94105684A Withdrawn EP0623522A1 (fr) 1993-05-05 1994-04-13 Capuchon à vis avec sécurité pour enfant

Country Status (3)

Country Link
US (1) US5445283A (fr)
EP (1) EP0623522A1 (fr)
DE (1) DE4314754A1 (fr)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0764591A1 (fr) * 1995-09-22 1997-03-26 Rieke Corporation Dispositif de fermeture inviolable par un enfant, à altération visible
WO1997029971A1 (fr) * 1996-02-16 1997-08-21 Jan Daugaard Bouchon non manoeuvrable par les enfants et son procede d'utilisation
US5695083A (en) * 1991-05-21 1997-12-09 Rical, S.A. Leaktight screw cap with disk having a gas-barrier effect
EP0963916A1 (fr) * 1998-06-10 1999-12-15 Invat S.r.l. Coiffe de sécurité obtenue par l'application d'un capuchon de sécurité indépendant sur un capuchon normal
USD633386S1 (en) 2010-05-27 2011-03-01 Silgan White Cap LLC Closure
USD634200S1 (en) 2010-05-27 2011-03-15 Silgan White Cap LLC Closure
USD634199S1 (en) 2010-05-27 2011-03-15 Silgan White Cap LLC Closure
US8231020B2 (en) 2010-05-27 2012-07-31 Silgan White Cap LLC Impact resistant closure

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6082564A (en) * 1997-07-29 2000-07-04 Trout; Brett J. Key actuated locking cap
US5918752A (en) * 1998-01-14 1999-07-06 Owens-Illinois Closure Inc. Tamper-evident squeeze-and-turn child-resistant closure
US20050150857A1 (en) * 2004-01-13 2005-07-14 Brozell Brian J. Child-resistant closure having a non-child-resistant mode of operation
US7114619B2 (en) * 2004-03-12 2006-10-03 Paradigm Packaging, Inc. Child resistant dispensing closure package
US7401706B2 (en) * 2004-09-27 2008-07-22 Rexam Prescription Products Inc. Closure and package having child-resistant and non-child-resistant modes of operation
US7549547B2 (en) 2005-06-06 2009-06-23 Berry Plastics Corporation Composite two-piece tamper-evident closure with a seal-delay-release feature and a method therefor
US20090014404A1 (en) * 2007-07-10 2009-01-15 Berry Plastics Corporation Convertible container closure
US8056742B2 (en) 2007-07-31 2011-11-15 Rexam Healthcare Packaging Inc. Two-piece child-resistant closure and package
US20100200532A1 (en) * 2009-02-10 2010-08-12 Phoenix Closures, Inc. Low weight container closure
IT201700046734A1 (it) * 2017-04-28 2018-10-28 Bormioli Pharma S R L Capsula di sicurezza con bandella
US10414561B1 (en) 2018-07-03 2019-09-17 Pascal Holdings, LLC Safety cap

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2724337A1 (de) * 1977-05-28 1978-12-07 Kisico Kirchner Simon & Co Kg Verschlusskappe
US4353474A (en) * 1981-06-10 1982-10-12 Sunbeam Plastics Corporation Load bearing closure
EP0393340A1 (fr) * 1989-04-21 1990-10-24 Capsulit S.P.A. Fermeture de sécurité en particulier pour flacons contenant des médicament ou similaires
FR2677614A1 (fr) * 1991-06-13 1992-12-18 Bonet Jose Collado Sa Bouchon de securite perfectionne.

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3313441A (en) * 1966-02-17 1967-04-11 Jerome H Fadden Safety combination cap
US3615036A (en) * 1968-10-17 1971-10-26 Int Harvester Co Locking filler cap
US3869058A (en) * 1973-01-26 1975-03-04 Clayton Bogert Safety closure for containers
US3946889A (en) * 1975-03-05 1976-03-30 Sunbeam Plastics Corporation Tamper indicating child resistant closure
US5115928A (en) * 1990-06-14 1992-05-26 Drummond Jr Archie G Convertible child-resistant closure assembly
US5246123A (en) * 1990-12-21 1993-09-21 Kramer Steven G Conversion apparatus for child-resistant container closure
US5170900A (en) * 1992-05-06 1992-12-15 Comar, Inc. Child resistant closure

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2724337A1 (de) * 1977-05-28 1978-12-07 Kisico Kirchner Simon & Co Kg Verschlusskappe
US4353474A (en) * 1981-06-10 1982-10-12 Sunbeam Plastics Corporation Load bearing closure
EP0393340A1 (fr) * 1989-04-21 1990-10-24 Capsulit S.P.A. Fermeture de sécurité en particulier pour flacons contenant des médicament ou similaires
FR2677614A1 (fr) * 1991-06-13 1992-12-18 Bonet Jose Collado Sa Bouchon de securite perfectionne.

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5695083A (en) * 1991-05-21 1997-12-09 Rical, S.A. Leaktight screw cap with disk having a gas-barrier effect
EP0764591A1 (fr) * 1995-09-22 1997-03-26 Rieke Corporation Dispositif de fermeture inviolable par un enfant, à altération visible
WO1997029971A1 (fr) * 1996-02-16 1997-08-21 Jan Daugaard Bouchon non manoeuvrable par les enfants et son procede d'utilisation
EP0963916A1 (fr) * 1998-06-10 1999-12-15 Invat S.r.l. Coiffe de sécurité obtenue par l'application d'un capuchon de sécurité indépendant sur un capuchon normal
USD633386S1 (en) 2010-05-27 2011-03-01 Silgan White Cap LLC Closure
USD634200S1 (en) 2010-05-27 2011-03-15 Silgan White Cap LLC Closure
USD634199S1 (en) 2010-05-27 2011-03-15 Silgan White Cap LLC Closure
US8231020B2 (en) 2010-05-27 2012-07-31 Silgan White Cap LLC Impact resistant closure
US8672158B2 (en) 2010-05-27 2014-03-18 Silgan White Cap LLC Impact resistant closure

Also Published As

Publication number Publication date
US5445283A (en) 1995-08-29
DE4314754A1 (de) 1994-11-10

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