EP0737626A1 - Fermeture à vis avec sécurité pour les enfants - Google Patents

Fermeture à vis avec sécurité pour les enfants Download PDF

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Publication number
EP0737626A1
EP0737626A1 EP96105412A EP96105412A EP0737626A1 EP 0737626 A1 EP0737626 A1 EP 0737626A1 EP 96105412 A EP96105412 A EP 96105412A EP 96105412 A EP96105412 A EP 96105412A EP 0737626 A1 EP0737626 A1 EP 0737626A1
Authority
EP
European Patent Office
Prior art keywords
screw
cap
screw cap
closure
engagement
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.)
Granted
Application number
EP96105412A
Other languages
German (de)
English (en)
Other versions
EP0737626B1 (fr
Inventor
Axel Tombarge
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
Bericap 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 Bericap GmbH and Co KG filed Critical Bericap GmbH and Co KG
Publication of EP0737626A1 publication Critical patent/EP0737626A1/fr
Application granted granted Critical
Publication of EP0737626B1 publication Critical patent/EP0737626B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • B65D50/045—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 where one action elastically deforms or deflects at least part of the closure, the container or an intermediate element, e.g. a ring
    • B65D50/046—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 where one action elastically deforms or deflects at least part of the closure, the container or an intermediate element, e.g. a ring and such deformation causes the disengagement of locking means, e.g. the release of a pawl-like element from a tooth or abutment, to allow removal of the closure by simultaneous rotation

Definitions

  • the present invention relates to a screw cap with child lock, with a screw cap with an internal thread and a closure part with an externally threaded socket, wherein on the screw cap and on the closure part engaging elements are provided, which come into engagement with each other when the screw cap is screwed on, without the screwing process noticeably to hinder, on the other hand, prevent their unscrewing in the opening direction by their engagement when the screw cap is completely screwed on, but these engagement elements can be disengaged by a relative radial movement.
  • screw on is used to mean the closure of the closure, i.e. the screw cap is screwed onto the lower part of the closure or its threaded connector.
  • screw cap is screwed onto the lower part of the closure or its threaded connector.
  • the screw cap thus has a relatively large axial length or height and would accordingly protrude relatively far above the container surface when used on a closure not provided with a bellows which can be inserted.
  • screw caps For closures or lower closure parts without bellows, other screw caps have therefore been used in the past which do not have such a large axial length or axial size. Rather, the screw caps of the known screw closures with child locks, which are provided for lower closure parts without bellows, are generally formed in two parts, a threaded inner cap being screwed directly onto the threaded connector and this inner cap being surrounded by an outer cap, which is indeed on the inner cap is secured and not removable, but at the same time is freely rotatable relative to the inner cap at least in the opening direction.
  • engagement elements are provided between the inner cap and the outer cap, which make normal screwing of the inner cap relatively easy and problem-free by transmitting force from the outer cap and over the engagement elements, while at the same time the engagement elements are designed such that they are very light when the outer cap is turned in the opening direction one above the other or slide past one another and can only be held in engagement by targeted axial or radial pressure on the outer cap in order to also rotate the inner cap in the opening direction.
  • the prior art can be described in that the one-piece screw caps with a child lock function require a relatively large amount of axial space have and are therefore necessarily limited to use with bellows closures, while the screw caps with child safety function on closures without bellows that can be inserted are relatively complex and expensive two-part screw caps.
  • the present invention is therefore based on the object of providing a screw closure with childproof lock which is simpler and cheaper to produce than the known two-part screw caps, but is nevertheless not restricted to use on bellows closures.
  • the screw cap is double-walled at least along a circumferential section of the cap jacket, the engagement elements provided on the cap being arranged on the outer wall part of the double-walled jacket section of the cap.
  • the screw cap can be kept axially relatively short and can therefore also be used for closures whose lower closure part does not have a bellows that can be inserted.
  • the double-walled design can be limited to a crying peripheral section of the cap jacket and is preferably provided on two diametrically opposite peripheral sections. No more material is required than with the known, one-piece screw caps with child lock, which had a greater axial length.
  • the force that is required to disengage the engaging elements in order to be able to open the closure can be adjusted by selecting the wall thicknesses, regardless of the design and arrangement of the thread on the inner wall of the jacket of the screw cap.
  • the at least one engagement element which is provided on the cap is arranged on the end face as an axial projection on the outer wall section. It is understood that several such Engagement elements can be provided, in particular if two or more diametrically opposite double wall sections are provided. This axial projection can also be called a cam.
  • a corresponding cam or projection or more generally an engagement element is provided in the preferred embodiment of the invention on a flange part which surrounds the base of the threaded connector on the lower closure part in a ring or ring-like manner.
  • This flange part does not necessarily have to lie in a plane perpendicular to the axis of the lower closure part, but it is sufficient if this flange part has radial surface components and, for example, has the shape of the shell of a truncated cone.
  • an embodiment of the invention is preferred in which the outer wall of the double-walled section can be pressed radially inward, with a sufficient internal clearance between the engaging element on the lower part of the closure and the threaded connection of the lower part of the closure in the radial direction so that the inside is pressed
  • the engaging element of the screw cap can pass through this intermediate space and can thus be moved past the engaging element of the lower closure part.
  • this presupposes that the radial thickness of the engaging element of the closure cap is less than the aforementioned clear distance between the engaging element on the closure bottom part and the threaded connector of the closure bottom part.
  • the distance between the outer and inner wall section in the double-walled area of the screw cap must be sufficiently large so that the engagement element on the outer wall of the closure cap can be pressed correspondingly radially inwards.
  • an embodiment of the invention is preferred in which at least one part of the engaging elements, ie either the engaging element or the engaging elements which are provided on the cap or the engaging element or elements which are provided on the closure lower part, is inclined gently towards the circumferential direction Has or have surface on which the engaging engaging elements of the counterpart slide when the cap is screwed on, while the engaging elements at the same time also have a flank which is essentially perpendicular to the circumferential direction and which, when attempting to open the screw cap without moving the engagement elements radially, come into engagement with one another and prevent opening.
  • an embodiment of the invention is preferred, in which the engaging elements on the lower closure part extend in the circumferential direction, the engaging elements of the cap radially outwardly covering and / or leading webs. These ridges provide a clean guide when the cap is screwed on and support the engagement elements sliding past one another in this direction and at the same time cover the engagement surfaces in the radial direction which come into engagement with one another when the closure is opened without moving part of the engagement elements radially away shall be.
  • the webs in question can also be designed as a ring-shaped circumferential collar which engages around the lower edge of the screw cap or the end face of the engagement elements protruding from the outer wall of the screw cap.
  • the screw cap can also be double-walled overall, i.e. the peripheral portion of the double-walled design of the screw cap is not restricted to small angular ranges.
  • the jacket is only in sections, e.g. in diametrically opposite sections, which extend over an angular range of e.g. Extend 30 ° to 90 °, is double-walled, in which case the transition from the single-walled to the double-walled area generally forms a step on the circumference of the screw cap, which offers a good approach for gripping and screwing or unscrewing the screw cap.
  • the outer wall of the double-walled section must be pressed radially inward in the opening direction in order to additionally disengage the engagement elements between the cap and the lower closure part.
  • flanks on the engaging elements or cams which are intended to facilitate sliding of the engaging elements or sliding past one another when screwed on, can either be inclined in the radial direction or in the axial direction, apart from their inclination in the circumferential direction, the projections in the former case being Dodge screwing radially inward and axially dodge in the second case, provided the outer wall section allows a corresponding axial yielding.
  • FIG. 4 shows the closure in a side view, which consists of a lower closure part 20 and a cap 1 screwed thereon. In the same position, the closure is also shown in Figure 1, but here in an axial section.
  • the lower closure part 20 consists of a cross-section approximately U-shaped closure foot 25 with legs 23, 26 of different lengths and an essentially radially extending flange part 4, as well as a threaded connector 21 attached to the closure foot 25 at the radially inner end of the flange part 4 an external thread 22.
  • a screw cap 1 is screwed onto this external thread 22.
  • the screw cap 1 consists of a cap base 13 and the cap jacket 10 with an internal thread 2. It can be seen in FIG. 1 that the jacket 10 is double-walled on the left-hand side and consists of an inner wall part 11 having the thread 2 and an outer wall part 12 , while the cap jacket 10 is single-walled on the right. This corresponds to the position of the cut, which is shown in Figures 2 and 3.
  • a cam 3 can be seen in section, which serves as an engagement element with a matching counter cam 5, which cannot be seen in FIG. 1 and is arranged on the flange part 4 of the lower closure part 20.
  • a matching counter cam 5 which cannot be seen in FIG. 1 and is arranged on the flange part 4 of the lower closure part 20.
  • FIG outer web 9 of the flange part 4 engaging around or leading the cam 3.
  • FIG. 1 Further parts of the lower closure part 20 which can be seen in FIG. 1 are a guarantee seal 24 with a tear-off clip 17.
  • the inner U-leg 23 of the closure foot 25 is provided on its outside with a locking projection which latches behind a perforated edge of a container opening, with bevels below this projection Make it easier to snap this leg into place.
  • the leg below this projection is provided with recesses which are intended to facilitate the complete pouring out of liquid from the container in question.
  • the axis of the closure is designated 16.
  • FIG 2 a top view of the closure shown in Figures 1 and 4 is shown from above, whereby essentially only the contours of the closure cap and the outer edge of the underlying closure foot 20 can be seen, at the same time the position of the closure shown in Figure 1 is also shown Cut shown.
  • the closure is shown in the same position as in Figure 2, but in a lower sectional plane in which the double-walled design of the screw cap 1 along two diametrically opposed wall sections can be seen.
  • the outer walls protrude radially outwards in the double-walled areas and are also provided with corrugations, which are intended to improve the grip of the closure cap.
  • the outer wall sections in the double-walled areas can easily be pressed into the area left between the inner wall section and the outer wall section, even if the screw cap with its internal thread 2 is screwed onto an external thread 22 of a corresponding threaded connector 21.
  • FIG. 4 In addition to the parts that have already been described in connection with FIGS. 1 to 3, the position and engagement of two cams 3 and 5 can be seen in FIG. 4, one of which acts as an axial projection on the outer wall section 12 and the other as axial projection on the flange part 4 of the lower closure part 20 is provided.
  • FIG. 5 again shows a section from a horizontal section through the closure, the section plane being located immediately above the cam 5 arranged on the flange part 4 and through the one at the lower edge of the outer wall 12 Cam 3 runs through.
  • the lateral contour of the cam 5 with the narrow webs 9 and 9 ', which attach to the outer edge, can still be clearly seen in FIG.
  • the lateral contour of the cam 3 is, as already mentioned, indicated in dashed lines in FIG.
  • the two cams 3, 5 have two parallel engagement surfaces 8 and 8 ′, which are oriented perpendicular to the circumferential direction.
  • these two surfaces 8, 8 ′ abut one another and thus prevent the screw cap 1 from rotating with respect to the lower closure part 20, with which the cam 5 is connected in one piece, while the cam 3 is connected in one piece with the screw cap 1. If, however, in the double-walled area of the screw cap 1, in the center of which the cam surface 8 is approximately, is pressed radially inward, which can be easily imagined with reference to FIG.
  • the cam 3 with the outer wall section is shown in the view according to FIG 12 radially inwards, ie in the orientation in FIG. 5 moved upwards into the position shown in dashed lines until the two surfaces 8, 8 'come out of engagement and the screw cap 1 can thus be moved in the opening direction in accordance with the arrow A.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Closures For Containers (AREA)
EP96105412A 1995-04-13 1996-04-04 Fermeture à vis avec sécurité pour les enfants Expired - Lifetime EP0737626B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19514026A DE19514026A1 (de) 1995-04-13 1995-04-13 Schraubverschluß mit Kindersicherung
DE19514026 1995-04-13

Publications (2)

Publication Number Publication Date
EP0737626A1 true EP0737626A1 (fr) 1996-10-16
EP0737626B1 EP0737626B1 (fr) 2000-02-02

Family

ID=7759646

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96105412A Expired - Lifetime EP0737626B1 (fr) 1995-04-13 1996-04-04 Fermeture à vis avec sécurité pour les enfants

Country Status (2)

Country Link
EP (1) EP0737626B1 (fr)
DE (2) DE19514026A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008000013A1 (fr) * 2006-06-29 2008-01-03 Walter Bock Canette

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102021109404A1 (de) * 2021-04-14 2022-10-20 Endress+Hauser Flowtec Ag Schutzhaube für ein Feldgerät und Feldgerät der Mess-/Automatisierungstechnik

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3989152A (en) * 1976-02-09 1976-11-02 Sunbeam Plastics Corporation Child-resistant locking means for a twist-action container cap
US4149646A (en) * 1978-06-21 1979-04-17 Sunbeam Plastics Corporation Child-resistant locking means for a container
US4752014A (en) * 1987-12-16 1988-06-21 Poly-Seal Corporation Tamper-evident child-resistant closure and container with same
DE4028079A1 (de) * 1990-09-05 1992-03-12 Berg Jacob Gmbh Co Kg Kunststoffverschluss fuer metallverpackungen
DE29501185U1 (de) * 1994-12-31 1995-05-11 Heinrich Stolz GmbH & Co KG, 57290 Neunkirchen Verschluß für einen Behälter aus einem Verschlußunterteil und einer Schraubkappe

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3826395A (en) * 1973-05-03 1974-07-30 Sunbeam Plastics Corp Leak-proof closure for a liquid container
DE2542872C3 (de) * 1975-09-25 1978-11-16 Georg Menshen + Co Kg, 5950 Finnentrop Kindersicherer Schraubverschluß
US4117945A (en) * 1977-06-29 1978-10-03 Owens-Illinois, Inc. Child-resistant safety closure
CA1122160A (fr) * 1977-06-29 1982-04-20 James H. Price Fermeture a l'epreuve des manipulations par les enfants
GB2256638B (en) * 1991-06-10 1995-05-17 Chemence Ltd Container
DE9312423U1 (de) * 1992-08-19 1994-02-10 Karl Höll GmbH & Co KG, 40764 Langenfeld Tube mit kindersicherem Verschluß

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3989152A (en) * 1976-02-09 1976-11-02 Sunbeam Plastics Corporation Child-resistant locking means for a twist-action container cap
US4149646A (en) * 1978-06-21 1979-04-17 Sunbeam Plastics Corporation Child-resistant locking means for a container
US4752014A (en) * 1987-12-16 1988-06-21 Poly-Seal Corporation Tamper-evident child-resistant closure and container with same
DE4028079A1 (de) * 1990-09-05 1992-03-12 Berg Jacob Gmbh Co Kg Kunststoffverschluss fuer metallverpackungen
DE29501185U1 (de) * 1994-12-31 1995-05-11 Heinrich Stolz GmbH & Co KG, 57290 Neunkirchen Verschluß für einen Behälter aus einem Verschlußunterteil und einer Schraubkappe

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008000013A1 (fr) * 2006-06-29 2008-01-03 Walter Bock Canette
CN101479163B (zh) * 2006-06-29 2011-11-30 沃尔特·博克 罐头

Also Published As

Publication number Publication date
EP0737626B1 (fr) 2000-02-02
DE19514026A1 (de) 1996-10-17
DE59604340D1 (de) 2000-03-09

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