WO1996041750A1 - Bouchon de securite pour enfants avec systeme de compte-gouttes - Google Patents

Bouchon de securite pour enfants avec systeme de compte-gouttes Download PDF

Info

Publication number
WO1996041750A1
WO1996041750A1 PCT/GB1996/001371 GB9601371W WO9641750A1 WO 1996041750 A1 WO1996041750 A1 WO 1996041750A1 GB 9601371 W GB9601371 W GB 9601371W WO 9641750 A1 WO9641750 A1 WO 9641750A1
Authority
WO
WIPO (PCT)
Prior art keywords
closure
inner member
bulb
outer member
dropper
Prior art date
Application number
PCT/GB1996/001371
Other languages
English (en)
Inventor
Dean Walding
Original Assignee
Dragon Plastics Limited
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 Dragon Plastics Limited filed Critical Dragon Plastics Limited
Priority to AU59080/96A priority Critical patent/AU5908096A/en
Priority to GB9725845A priority patent/GB2317884A/en
Publication of WO1996041750A1 publication Critical patent/WO1996041750A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
    • B01L3/00—Containers or dishes for laboratory use, e.g. laboratory glassware; Droppers
    • B01L3/02—Burettes; Pipettes
    • B01L3/0282—Burettes; Pipettes mounted within a receptacle
    • 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 invention relates to a child resistant closure, particularly a child resistant closure for dropper bottles.
  • Child resistant closures are typically used for closing bottles containing hazardous substances, notably pharmaceutical and cleaning substances, and are intended to deter children from gaining access to the contents thereof.
  • Such closures commonly comprise inner and outer members, the inner member being threaded for engagement with a complementary thread on a receptacle such as a container or bottle, and the outer member enclosing the inner member so that the inner member cannot be directly disengaged from a receptacle.
  • the outer member is usually captive on the inner member, and is normally free to rotate relative thereto; complementary dogs of each member are typically provided, and are adapted to engage on axial movement of the outer member relative to the inner member.
  • An integral resilient tab or leaf spring of one of the inner and outer members is arranged to . urge the outer and inner members apart and thus to hold the dogs out of engagement in the absence of an axial force.
  • a ratchet is normally provided which engages the outer member to the inner member when the outer member is rotated on the receptacle in a closing direction, thus enabling the cap to be screwed onto the receptacle without engagement of the dogs.
  • the ratchet slips in the unscrewing direction, so that the closure cannot be opened by a person unable to depress the outer member firmly enough to engage the dogs.
  • the closure may thus be made sufficiently difficult to remove by persons lacking in physical strength, notably young children.
  • instructions for removal of the cap may be embossed on the cap and such instructions would be unintelligible to young children.
  • the inner and outer members are most commonly moulded in plastic.
  • the resilient tab is usually an integral part of one or other of these components, it is essential to select a material which is appropriate for use as one of the inner and outer members, and which is sufficiently resilient to be useful as the resilient tab.
  • plastics materials are known to fatigue and to deform plastically.
  • the resilient tab may become less effective at urging the inner and outer members apart. Consequently it is possible that the dogs will become easier to engage.
  • a further disadvantage is that the resilient tabs may be awkward to mould without rather expensive tooling, and the cycle time may be long due to the difficulty of ejecting the closure from the mould.
  • a resilient member between the inner and outer members which was not an integral part thereof.
  • a helical spring or the like while being more appropriate in terms of materials selection, is prohibitively expensive to manufacture and assemble.
  • a child resistant closure comprising an inner closure member threaded for engagement with a complementary thread of a receptacle, an outer member captively engaged with the inner member, rotatable relative to the inner member about the thread axis and arranged to enclose the inner member to prevent access thereto, engagement means being provided for releasable engagement of the outer member and the inner member for rotation of the outer member and inner member in unison in the opening direction, a resilient dropper bulb being provided within the inner member and suitable for use with a dropper tube extending in use into the mouth of the receptacle, said dropper bulb being arranged to urge the engagement means into the released condition.
  • a particular advantage of the present invention is that the dropper bulb acts as a resilient member between the inner and outer members.
  • the dropper bulb is normally constructed from material selected for elastic properties which do not deteriorate substantially over a period of time, and thus no compromise in material selection need be made.
  • the material of the inner or outer member can be selected without reference to the integral resilient tab of the prior embodiment.
  • An additional advantage is that a dropper bulb will accommodate a rather large axial movement between inner and outer caps thus ensuring that the inner and outer caps can be widely separated without requiring a high release load.
  • the engagement means comprises complementary dogs of the inner and outer members.
  • the engagement means is urged into the engaged position by axial movement of the outer member relative to the inner member.
  • the dropper bulb urges the inner member and outer member apart.
  • the dropper bulb is arranged co-axially with the inner member.
  • Ratchet means may be provided to engage the outer and inner members for rotation in unison in the closing direction, while slipping in the opening direction. The dropper bulb may project through the outer member to allow access to said bulb for the purpose of dispensing drops of a liquid.
  • a cap is captively engaged between the dropper bulb and the outer member, and axially movable relative to the outer member, axial movement of the cap being operative to squeeze the dropper bulb for dispensing.
  • This cap is advantageous as it protects the dropper bulb from accidental piercing or other damage. Furthermore the arrangement permits squeezing of the dropper bulb using only the thumb which may be more convenient and controllable. In particular the tendency to carry a conventional dropper by the bulb may lead to accidental discharge; placing the bulb within the outer member avoids this disadvantage.
  • a skirt of the cap partially encloses the dropper bulb.
  • the dropper bulb urges the cap into abutment with the outer member, consequently urging the outer member and inner member apart.
  • the inner and outer members are of plastics material.
  • the cap may also be of plastics material.
  • Relief features of the exterior of the outer member may be provided to facilitate gripping thereof by the user.
  • Fig. 1 is an elevation of a dropper bottle including a cap according to the invention
  • Fig. 2 is a partial cross-section through a child resistant closure according to the invention as installed on a screw-threaded neck of a bottle;
  • Fig. 3 illustrates the underside of an alternative push button
  • Fig. 4 is a section on line 4-4 of Fig. 3.
  • Child resistant closure 10 comprises a substantially tubular inner member 12 and a substantially tubular outer member 14.
  • the upper end of the outer member 14 has a continuous radially inwardly projecting flange 15 defining a co-axial circular aperture 27 of diameter smaller than the inner diameter of inner member 12.
  • the inner member 12 and outer member 14 are substantially co-axial.
  • a continuous radial rib 16 projects from the outer surface of the inner member 12, and a continuous radial retaining rib 17 projects inwardly from the inner surface of the outer member 14, proximate the lower end, the ribs 16,17 projecting sufficiently to retain the inner member 12 captive within the outer member 14, and movable axially between the upper flange 15 and the retaining rib 17.
  • the outer and inner members are of resilient plastic.
  • the upper end 18 of the inner member 12 has equispaced castellations 19.
  • Equispaced engagement dogs 20 are disposed on the inner surface of outer member 14 and arranged to engage with castellations 19 for transmission of axially applied torque from the outer member 14 to the inner member 12.
  • Dogs 20 and castellations 19 are selectively engageable and disengageable by relative axial movement of the inner and outer members 12,14.
  • a plurality of equispaced axial ribs 21 project from the outer surface of the inner member 12 and extend between the radial rib 16 and the upper end 18.
  • a plurality of similar equispaced axial ribs 22 project from the inner surface of the outer member 14, there being an equal number of axial ribs on each of the inner and outer members 12,14.
  • the axial ribs 22 of the outer member 14 extend from the upper flange 15 towards the retaining rib 17, but terminate short of said retaining rib 17 by a distance at least as great as the maximum movement of the inner member 12 within the outer member 14.
  • the inner and outer axial ribs 21,22 project sufficiently so as to overlap, and are shaped so as to form a ratchet type mechanism, whereby the axial ribs engage to transfer drive torque between the inner and outer members 12,14 in the closing direction, but to deform and slide over each in the opening direction.
  • a screw-threaded portion 23 is provided on the inner surface of the inner member 12 and is adapted to engage with a complementary screw-threaded portion 25 of the outer surface of the neck 24 of the bottle 11.
  • a radially extending abutment ring 26 extends inwardly from the inner surface of the inner member 12, at the upper end of the screw-threaded portion 23.
  • a tubular push button 30 is provided in the aperture 27 with a blind outer end.
  • the outermost portion of the push button 30 is of smaller diameter than the aperture 27, and the remaining portion of the push button 30, distal the blind end, is of larger diameter than the aperture 27, but of smaller diameter than the inner diameter of the inner member 12.
  • a radial shoulder 31 is provided between the two portions of the push button. The push button 30 is held captively between the outer and inner members 14,12, the push button 30 being slidable inwardly of the abutment of the shoulder 31 with the periphery of the aperture 27.
  • a bulb 35 of rubber or similar material has a single aperture 36 enclosed by a rim 37.
  • the rim 37 is shaped to co-operate sealingly with the abutment ring 26, so that in use, the rim 37 seals between the abutment ring 26 and the neck 24 of the bottle 11 in order to contain the contents thereof.
  • the bulb 35 extends within the interior of the push button 30, and resiliently urges the shoulder 31 into abutment with the periphery of the outer member 14, and consequently the dogs 20 and castellations 19 are urged out of engagement with each other.
  • a dropper tube 40 of known type is engaged sealingly with the bulb 35 axially within the inner member 12.
  • the outer member 14 must be urged downwards against the resilience of the bulb, so that the dogs 20 and castellations 19 engage. The outer member 14 may then be turned in the opening sense to transmit torque to the inner member 12.
  • the push button 30 is depressed which causes compression of the bulb 35 and evacuation thereof. Liquid may then be drawn up into the dropper tube 40 by releasing the button 30 and dispensed by further depressions of the button 30.
  • Figs. 3 and 4 illustrate an alternative push button 50 which is similar to that illustrated in Fig.
  • the primary arms 51 form a cruciform projection extending inwardly from the underside of the push button top and define a part spherical recess into which the spike 52 partially projects.
  • the secondary arms 53 are planar and extending radially inwardly of the cap to approximately the same extent as the primary 51 arms extend radially outwardly. The radial extent of the arms 51,53 overlaps slightly, as illustrated.

Landscapes

  • Health & Medical Sciences (AREA)
  • Clinical Laboratory Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Closures For Containers (AREA)
  • Snaps, Bayonet Connections, Set Pins, And Snap Rings (AREA)

Abstract

Le bouchon de sécurité pour enfants décrit ci-dessous comprend un élément interne (12) fileté pouvant s'engager dans le filetage complémentaire d'un réceptacle (11), et un élément externe (14) captif à l'intérieur de l'élément interne (12). L'élément externe (14) tourne par rapport à l'élément interne (12) sur l'axe de filetage; il est constitué de façon à enfermer l'élément interne (12) afin d'empêcher l'accès à ce dernier. Un système de fixation (19, 20) permet l'engrènement provisoire de l'élément externe (14) et de l'élément interne (12), qui peuvent ainsi tourner simultanément dans le sens de l'ouverture. Une poire compte-gouttes souple (35) disposée dans l'élément interne (12) est conformée de façon à recevoir un tube compte-gouttes (40) qui, en utilisation, s'allonge à l'intérieur du réceptacle (11). La configuration de la poire compte-gouttes (35) oblige le système de fixation (19, 20) à passer en position relâchée.
PCT/GB1996/001371 1995-06-08 1996-06-07 Bouchon de securite pour enfants avec systeme de compte-gouttes WO1996041750A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
AU59080/96A AU5908096A (en) 1995-06-08 1996-06-07 Child resistant closure with dropper assembly
GB9725845A GB2317884A (en) 1995-06-08 1996-06-07 Child resistant closure with dropper assembly

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB9511589A GB2301817A (en) 1995-06-08 1995-06-08 Child resistant closure with dropper bulb
GB9511589.5 1995-06-08

Publications (1)

Publication Number Publication Date
WO1996041750A1 true WO1996041750A1 (fr) 1996-12-27

Family

ID=10775708

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB1996/001371 WO1996041750A1 (fr) 1995-06-08 1996-06-07 Bouchon de securite pour enfants avec systeme de compte-gouttes

Country Status (3)

Country Link
AU (1) AU5908096A (fr)
GB (2) GB2301817A (fr)
WO (1) WO1996041750A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9908666B2 (en) 2015-09-09 2018-03-06 Purebacco USA LLC Bottle neck insert for inhibiting spillage or accidental exposure, and related methods and systems
EP3492172A1 (fr) * 2017-11-29 2019-06-05 Lumson S.p.A. Compte-gouttes
CN111547369A (zh) * 2020-05-06 2020-08-18 宁波卓荣国际贸易有限公司 一种防儿童开启的滴管瓶

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2321444A (en) * 1997-01-28 1998-07-29 David Perkins Containers
IT1291848B1 (it) * 1997-05-02 1999-01-21 Project S A S Di Menichelli Ma Otturatore per flaconi con dispositivo per il prelievo di quantitativi dosati del liquido contenuto in detti flaconi
GB2366288B (en) * 2000-08-31 2004-03-10 Inge Spa Sealing device for a container of substances to be kept separate up to their dispensing
CN106275799B (zh) * 2016-08-13 2018-06-19 杭州翰泽实业有限公司 一种化妆品盛装瓶
CN110589209B (zh) * 2019-09-02 2021-03-05 青岛市妇女儿童医院 一种预防儿童误启的药剂瓶锁紧结构

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4286633A (en) * 1979-09-12 1981-09-01 Kerr Glass Manufacturing Corporation Dropper assembly
US5154702A (en) * 1990-05-21 1992-10-13 Wheaton Industries Variable dosage dropper system

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5316161A (en) * 1993-04-20 1994-05-31 Comar, Inc. Child resistant closure

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4286633A (en) * 1979-09-12 1981-09-01 Kerr Glass Manufacturing Corporation Dropper assembly
US5154702A (en) * 1990-05-21 1992-10-13 Wheaton Industries Variable dosage dropper system

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9908666B2 (en) 2015-09-09 2018-03-06 Purebacco USA LLC Bottle neck insert for inhibiting spillage or accidental exposure, and related methods and systems
EP3492172A1 (fr) * 2017-11-29 2019-06-05 Lumson S.p.A. Compte-gouttes
CN111547369A (zh) * 2020-05-06 2020-08-18 宁波卓荣国际贸易有限公司 一种防儿童开启的滴管瓶

Also Published As

Publication number Publication date
GB9511589D0 (en) 1995-08-02
AU5908096A (en) 1997-01-09
GB2317884A (en) 1998-04-08
GB9725845D0 (en) 1998-02-04
GB2301817A (en) 1996-12-18

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