EP0897878A1 - Kindersicherer Verschluss - Google Patents

Kindersicherer Verschluss Download PDF

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Publication number
EP0897878A1
EP0897878A1 EP98306506A EP98306506A EP0897878A1 EP 0897878 A1 EP0897878 A1 EP 0897878A1 EP 98306506 A EP98306506 A EP 98306506A EP 98306506 A EP98306506 A EP 98306506A EP 0897878 A1 EP0897878 A1 EP 0897878A1
Authority
EP
European Patent Office
Prior art keywords
cap
closure
pawls
ceiling
inner 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Withdrawn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
EP98306506A
Other languages
English (en)
French (fr)
Inventor
Bernard V. Cadman
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP0897878A1 publication Critical patent/EP0897878A1/de
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • 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 container closures, and is particularly, but not exclusively, concerned with so-called 'child-resistant', (lockable) closures.
  • 'lockable closure' is used herein to embrace fittings, such as screw caps, which are installed and removed by an action of one character, set or sequence, such as rotation - but which can only be 'unlocked' (for opening) by supplementary (prefacing) action of a different (eg linear) character.
  • Certain domestic consumer products - including medicines and cleaning agents such as bleach - are hazardous upon skin contact or intemal consumption - especially to vulnerable younger children.
  • a threaded closure cap must be depressed initially, during (or prefacing) rotation (usually anti-clockwise, for a natural unlocking action), to allow engagement with a container neck thread and closure removal.
  • (angular position reference) markings must be aligned correctly before a closure can be removed.
  • Another closure cap requires localised squeezing together of particular regions of the cap wall combined with closure rotation.
  • An advantage of the 'press and tum' closures is their suitability for direct substitution of a conventional screw cap, without container neck adaptation.
  • Known 'press and turn' child-resistant locking closures generally employ two interacting and inter-nesting caps.
  • an inner cap mates with a container neck thread.
  • the inner cap is in turn enshrouded by an outer cap - which becomes the only element accessible for user rotation.
  • the outer and inner caps will only interact and move together to unscrew when the outer cap is simultaneously depressed and rotated.
  • the caps cannot be rotated in the direction required for unthreading the inner cap from the container neck, unless depressed.
  • This unthreading is generally in the anti-clockwise direction.
  • the outer and inner caps can remain rotatably fast for rotation in the closure installation direction - generally clockwise - even without outer cap depression.
  • the inner and outer caps are shaped so that there is only a sustained interaction between them when the outer cap is turned in one (conventionally clockwise) direction.
  • the inner and outer caps simply slide past one another upon rotation in the other (conventionally anti-clockwise) direction, so that there is no interaction - that is rotation of the outer cap does not cause the inner cap to turn.
  • a supplementary interaction mechanism between the caps is only implemented or engaged by depressing the outer cap.
  • a lockable closure for a container (threaded neck), comprises an inner cap, with a inner thread profile, for engagement with a threaded container neck, and one or more pawls, on the outer surface of the cap ceiling; an outer cap, with an array of ratchet teeth, at juncture of the side wall and cap ceiling, to engage the pawls of said inner cap, tabs protruding from the inner surface of the cap ceiling; said tabs being splayed, upon contact with the ceiling of the inner cap, through application of downward pressure upon the ceiling of the outer cap, thereby engaging said pawls, and rotationally entraining the inner and outer caps, to allow removal of both caps, when fitted as an integral closure to a container.
  • Such a closure configuration provides differentiated selective inter-engagement mechanisms between inner and outer cap elements, respectively for installation upon and removal from a threaded container neck.
  • tab and pawl inter-engagement for closure (unscrewing) removal is independent of pawl and ratchet selective inter-engagement for closure (screwing installation)
  • the ratchets of the outer cap may be shaped to engage the pawls of the inner cap only when the outer cap is turned in a clockwise direction.
  • the outer cap internal locating tabs come into contact with the top side of the inner cap and then splay progressively outwards.
  • the ends of the tabs eventually reach far enough outwards to abut or engage the pawls on the inner cap, (rotationally) entraining the inner and outer caps and allowing anti-clockwise rotation of the inner cap by outer cap rotation.
  • Such clicking may encourage further play, exploration or experimentation and accidental revelation of the unlocking solution - allowing access to potentially hazardous container contents.
  • a child-resistant locking closure 10 for threaded inter-fit with the threaded neck of a container (not shown), comprises an inner cap 21 inter-nested with an outer cap 11.
  • a protrusion 24 at the outer bottom edge of the inner cap 21 fits above a ridge 14 on the inside surface of the side wall 12 of the outer cap 11.
  • the inner cap 21 is thus (permanently) entrapped within the outer cap 11.
  • the outer cap 11 is the only part of the closure mechanism visible once fitted to a container neck.
  • the outer surface of the side wall 12 may be profiled, for example multi-facetted, segmented or serrated, stylistically and/or functionally to afford better grip for opening and closing.
  • Summary instructions for opening and closing may be printed in the outer cap ceiling surface.
  • the side wall 12 is angled so that the outer cap 11 is somewhat wider at the bottom than at the top - that is slightly (truncated) conical overall.
  • Other cap profiles are tenable.
  • the ratchet teeth 16 are orientated (progressively) in the same (rotational) sense, around the outer cap 11.
  • the tabs 15 are attached at their (upper) ends to the inner cap ceiling 13.
  • the tabs are orientated somewhat towards the side wall 12 of the outer cap 11, to facilitate their outward splay upon cap depression, as described later.
  • the inner cap 21 has a smooth outer side wall 22 surface.
  • the inner surface has a thread profile 27 to engage a complementary container neck thread profile.
  • Attached to the raised ceiling 25 of the inner cap 21 is an array of pawls 26.
  • the ends of the pawls 26 extend outwards towards the outside edge of the inner cap 21.
  • the inner cap 21 does not turn with the outer cap in an anti-clockwise sense, necessary for closure removal from the container neck.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Closures For Containers (AREA)
EP98306506A 1997-08-16 1998-08-14 Kindersicherer Verschluss Withdrawn EP0897878A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB9717354 1997-08-16
GB9717354A GB2328206A (en) 1997-08-16 1997-08-16 Child resistant closure

Publications (1)

Publication Number Publication Date
EP0897878A1 true EP0897878A1 (de) 1999-02-24

Family

ID=10817562

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98306506A Withdrawn EP0897878A1 (de) 1997-08-16 1998-08-14 Kindersicherer Verschluss

Country Status (2)

Country Link
EP (1) EP0897878A1 (de)
GB (1) GB2328206A (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012064157A3 (ko) * 2010-11-11 2012-07-19 (주)연우 안전캡

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2214333C2 (ru) * 2000-11-24 2003-10-20 ООО НПК "Базальт" Пробка заливной горловины топливного бака
CN100345732C (zh) * 2004-11-15 2007-10-31 郑杰文 斜齿轮式防伪瓶与瓶盖的组合体

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2115720A1 (de) * 1970-07-22 1972-01-27 Eyelet Specialty Co , Wallingford, Conn (V St A ) Sicherheitsverschluß
GB1388729A (en) * 1971-12-25 1975-03-26 Takeda Chemical Industries Ltd Safety cap for containers
US4570809A (en) 1984-10-05 1986-02-18 David Archer Child proof cap having tamper means
WO1986007035A1 (fr) 1985-05-18 1986-12-04 Victor Wassilieff Systeme de fermeture de securite pour enfants

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2115720A1 (de) * 1970-07-22 1972-01-27 Eyelet Specialty Co , Wallingford, Conn (V St A ) Sicherheitsverschluß
GB1388729A (en) * 1971-12-25 1975-03-26 Takeda Chemical Industries Ltd Safety cap for containers
US4570809A (en) 1984-10-05 1986-02-18 David Archer Child proof cap having tamper means
WO1986007035A1 (fr) 1985-05-18 1986-12-04 Victor Wassilieff Systeme de fermeture de securite pour enfants

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012064157A3 (ko) * 2010-11-11 2012-07-19 (주)연우 안전캡

Also Published As

Publication number Publication date
GB9717354D0 (en) 1997-10-22
GB2328206A (en) 1999-02-17

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