US20100320168A1 - Child-resistant closure - Google Patents

Child-resistant closure Download PDF

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Publication number
US20100320168A1
US20100320168A1 US12/867,558 US86755809A US2010320168A1 US 20100320168 A1 US20100320168 A1 US 20100320168A1 US 86755809 A US86755809 A US 86755809A US 2010320168 A1 US2010320168 A1 US 2010320168A1
Authority
US
United States
Prior art keywords
closure
container
pair
ribs
band
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.)
Abandoned
Application number
US12/867,558
Other languages
English (en)
Inventor
Martin Carey Bull
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.)
Obrist Closures Switzerland GmbH
Original Assignee
Obrist Closures Switzerland GmbH
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
Priority claimed from GB0802995A external-priority patent/GB0802995D0/en
Priority claimed from GB0803433A external-priority patent/GB0803433D0/en
Priority claimed from GB0807889A external-priority patent/GB0807889D0/en
Application filed by Obrist Closures Switzerland GmbH filed Critical Obrist Closures Switzerland GmbH
Assigned to OBRIST CLOSURES SWITZERLAND GMBH reassignment OBRIST CLOSURES SWITZERLAND GMBH ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: BULL, MARTIN CAREY
Publication of US20100320168A1 publication Critical patent/US20100320168A1/en
Abandoned 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
    • 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
    • B65D2215/00—Child-proof means
    • B65D2215/02—Child-proof means requiring the combination of simultaneous actions

Definitions

  • FIG. 7 is a diagrammatic representation of FIG. 7 .
  • the present invention relates generally to a child-resistant closure and particularly to a squeeze-and-turn closure.
  • the present invention seeks to address the problems with known squeeze-and-turn closures.
  • the present invention seeks to address the problems with known squeeze-and-turn closures with a closure comprising a body having a side skirt and locking means carried on or by the skirt for releasably locking the closure on to the container, in which the closure further comprises one or more regions of reduced stiffness in the vicinity of the locking means, and in which the side skirt comprises one or more ribs.
  • a child-resistant, squeeze-and-turn closure for a container, the closure comprising a body having a side skirt and locking means carried on or by the skirt for releasably locking the closure on to the container, in which the closure further comprises one or more regions of reduced stiffness in the vicinity of the locking means, and in which the side skirt comprises one or more ribs.
  • the side skirt may comprise a side wall with each rib of the one or more ribs carried on or by the wall.
  • Each rib may be carried on the interior and/or exterior of the wall.
  • the ribs are created as part of a ‘lightweighting’ exercise in which material is removed, in embodiments without a wall, the same lightweighting exercise could result in a skirt formed entirely from ribs with gaps therebetween.
  • a ‘basket-like’ or ‘lattice’ configuration is achieved with a crisscross array of ribs.
  • the body may be at least partly dome-shaped.
  • a body which is entirely dome-shaped is contemplated, as is a frusto-conical body.
  • the region of reduced stiffness may be provided by a variation in the material of the closure body.
  • a variation in the material may comprise a portion of reduced thickness, for example an internal or external channel.
  • the ratio of the thickness of the portion of reduced thickness to the thickness of the body immediately adjacent may be in the range 1:5 to 4:5.
  • the thickness of the portion of reduced thickness may be in the range 0.1 mm to 0.5 mm.
  • the variation may comprise one or more windows.
  • the windows may comprise bounded apertures passing through the entire thickness of the body.
  • the windows may comprise thinned wall section membranes.
  • the windows/membranes may be transpersed with connecting webs or bridges to give stability. In addition to increasing flexibility of the closure skirt and helping to direct the pressing forces to the required area, the removal of material reduces costs.
  • the region of reduced thickness may be formed on a child resistant band provided by the closure.
  • the band may be connected to the closure body by one or more of the ribs.
  • the band may provide the region of reduced stiffness.
  • the region of reduced stiffness may be enhanced by providing an absence of connecting ribs over selected regions of the bands.
  • the variation may be provided in the top plate and/or the side skirt.
  • the variation may be provided in the region of the intersection between the top plate and the side skirt.
  • the closure may further comprise a defined top plate from which the side skirt depends.
  • the closure may also include a bore seal depending from the top plate and the variation may be located between the bore seal and the skirt.
  • the present invention also provides a container having a closure as described herein.
  • FIG. 1 is a perspective view of a closure formed according to a first embodiment of the present invention.
  • FIG. 2 is a side elevation of the closure of FIG. 1 in the region of a lateral squeeze pad.
  • FIG. 3 is a plan view of the closure of FIG. 1 .
  • FIG. 4 is an under plan perspective view of the closure of FIG. 1 .
  • FIG. 5 is an under plan view of the closure of FIG. 1 .
  • FIG. 6 is a side elevation of the closure of FIG. 1 in the region of an internal locking lug.
  • FIG. 7 is a section of the closure of FIG. 6 taken along line A-A.
  • FIG. 8 is an under plan view of the closure of FIGS. 1 through 7 shown in a locked position.
  • FIG. 9 is an under plan view of the closure of FIG. 8 shown in an unlocked position.
  • FIG. 10 is a perspective view of a closure formed according to an alternative embodiment.
  • FIG. 11 is a side elevation of the closure of FIG. 10 .
  • FIG. 12 is a section of the closure of FIGS. 10 and 11 .
  • FIG. 13 is a side elevation of a closure formed according to an alternative embodiment shown in the region of a pressing pad.
  • FIG. 14 is a side elevation of the closure of FIG. 13 shown in the region of a locking lug.
  • FIG. 15 is an under plan view of the closure of FIGS. 13 and 14 .
  • FIG. 16 is a magnified view of the region of reduced stiffness formed in the closure of FIGS. 13 through 15 .
  • FIG. 17 is an under plan view of the region of FIG. 16 .
  • FIG. 18 is a side elevation of a closure formed according to a further embodiment.
  • FIG. 19 is a perspective view of the closure of FIG. 18 .
  • FIG. 20 is an under plan view of the closure of FIGS. 18 and 19 .
  • FIG. 21 is an under plan view of the closure of FIGS. 18 through 20 shown in a locked position.
  • FIG. 22 is an under plan view of the closure of FIG. 21 shown in and unlocked position.
  • FIG. 23 is a side elevation of a closure formed according to and alternative embodiment.
  • FIG. 24 is a plan view of the closure of FIG. 23 .
  • FIG. 25 is a perspective view of the closure of FIG. 24 .
  • FIG. 26 is a perspective view of a closure formed according to a further embodiment.
  • the closure 10 comprises a top plate 20 and a side skirt 30 .
  • the top plate 20 comprises a central disc 21 with an inclined annular wall 22 depending from the periphery thereof. At the other end of the annular wall 22 a shoulder 23 extends and merges into the side wall 30 .
  • the closure further comprises an inner wall 35 which is concentric with the skirt 30 .
  • the inner wall 35 includes internal screw thread formations 36 for engagement on corresponding external screw thread formations on a container neck (not shown).
  • the exterior of the open end of the skirt is provided with a pair of diametrically opposed pressing pads.
  • two diametrically opposed wedge-like lugs 40 , 45 are internally positioned.
  • the lugs 40 , 45 are circumferentially positioned between the pressing pads 31 , 32 on the side wall 30 so that the pads 31 , 32 and lugs 40 , 45 are spaced by 90° from each other, in the same way as the points on a compass.
  • the shoulder 23 is provided with two portions of reduced thickness in the form of a pair of diametrically opposed interior grooves 50 , 55 .
  • the grooves 50 , 55 are arcuate and extend over approximately 45° of the circumference, with in the region of the lugs 40 , 45 , with the lugs 40 , 45 positioned approximately centrally with respect to the grooves 50 , 55 when viewed from below.
  • the closure 10 also has an annular bore seal GO depending from the inclined wall 22 .
  • FIGS. 8 and 9 there is shown schematic under plan views of the closure 10 .
  • the closure 10 is shown connected to a container neck 70 , which includes external screw thread formations (not shown) for engaging the corresponding threads on the closure 10 .
  • the container neck 70 also comprises a pair of diametrically opposed abutment lugs 75 , 80 positioned to engage the locking lugs 40 , 45 of the closure.
  • FIG. 8 shows the closure in the locked position in which the closure is fully screwed on to the container neck 70 and the locking lugs 40 , 45 engaged the abutment lugs 75 , 80 on the container neck.
  • the closure cannot be rotated relative to the container neck due to the abutment of the closure and container lugs.
  • the lugs 40 , 45 In order for the closure to be rotated, the lugs 40 , 45 must be moved radially outward with respect to the abutment lugs 75 , 80 . This is effected by squeezing the closure at the pressing pads 31 , 32 .
  • the closure skirt 30 is flexible and the squeezing action causes it to ovalize as shown in FIG. 9 .
  • the lugs 40 , 45 can now pass around the outside of the abutment lugs 75 , 80 so that with a combined squeeze and turn movement the closure can he unscrewed.
  • the grooves 50 , 55 provide a region of reduced stiffness in the vicinity of the locking lugs 40 , 45 which in turn reduces the pressure required on the pads 31 , 32 in order to effect a sufficient deformation of the skirt 30 in those regions.
  • the grooves 50 , 55 reduce the resistance of the skirt 30 to flexing in the region of the locking lugs.
  • the ‘hinging’ of the skirt relative to the top plate is therefore improved in these areas. Keeping the material thicker, particularly in the region of the pressing pads, is important for the transmission of force; hence, simply a complete thinning of the entire closure would not produce the desired effect.
  • the regions of reduced stiffness allow the pressing threes on the pads to be directed to where they are most needed.
  • FIGS. 10 through 12 there is shown a closure 110 according to an alternative embodiment.
  • the closure 110 is very similar to the closure 10 shown in FIGS. 1 through 9 .
  • the portions of reduced stiffness are provided by a pair of diametrically opposed windows 180 , 185 formed in the closure shoulder 123 .
  • the windows 180 , 185 serve a similar purpose to the internal grooves of the closure 10 because they provide portions of reduced stiffness in the region of the locking lugs.
  • FIGS. 13 through 17 there is shown a closure 210 formed according to an alternative embodiment.
  • the closure 210 is similar to the closure 10 of FIGS. 1 through 7 in that it includes a pair of internal grooves 250 , 255 which provide increased flexibility to the skirt in the regions of two locking lugs 240 , 245 .
  • the skirt 230 is shorter and the closure includes an intermediate annular wall 290 between the shoulder 223 and the top plate 220 . This gives it a more elongate appearance.
  • the closure 210 does not comprise both an inner wall and a bore seal, but rather a single bore seal 260 which depends from the intersection of the shoulder 223 and the intermediate wall 290 .
  • the seal 260 includes internal screw threads 236 .
  • the shoulder region 223 of the closure 210 includes two diametrically opposed internal grooves 250 , 255 .
  • the thickness of the material adjacent the grooves 250 , 255 is approximately 1 mm and the thickness of the material defining the base of the groove is approximately 0.2 mm thick.
  • the closure operates in the same way as the closure 10 in that the pressing pads are used to ovalize the skirt 230 which moves the locking lugs 240 , 245 radially outwards.
  • the grooves 250 , 255 promote this movement of the skirt.
  • the closure 310 comprises a top plate 320 and a side skirt 330 .
  • the top plate 320 comprises a circular disc.
  • the closure further comprises an inner wall 335 (see FIG. 3 ) depending from the interior of the skirt 330 .
  • the inner wall includes internal screw thread formations for engagement on corresponding external screw thread formations on a container neck (not shown).
  • the skirt 330 depends from the periphery of the top plate 320 .
  • the skirt has two major components: (i) an underlying side wall 350 ; and (ii) a plurality of arcuate ribs 360 .
  • the side wall 350 has three sections: (i) a domed upper section 351 ; (ii) an annular intermediate section 352 ; and (iii) an annular lower section 353 .
  • the upper section 351 joins the intermediate section 352 at a first step 354 ; and, similarly a second step 355 joins the intermediate and lower sections 352 , 353 .
  • the ribs 360 project from the exterior of the side wall 350 . All of the ribs 360 extend from the top plate 320 and over the upper 351 and intermediate 352 side wall sections. in other embodiments (not shown), some or all of a set of ribs extend from a point on the side wall 350 below the top plate 320 . Some of the ribs terminate at the second 355 step whereas others continue as described in more details below.
  • a child resistant band 365 or hoop is provided at the end of the skirt, opposite the top plate 320 .
  • the exterior of the band is provided with a pair of diametrically opposed pressing pads 331 , 332 .
  • the pads 331 , 332 are generally triangular; other shapes are, of course, possible.
  • the band 365 is annular and passes around the open end of the side wall annular lower section 353 .
  • the band 365 is coaxial with the open end, but with a greater diameter, so that a gap 366 is present.
  • the side wall 350 is connected to the band 365 by the ribs 360 . More specifically, in this embodiment seven ribs 360 a extend beyond the second step in the region of each pad 331 and connect to the pad/band.
  • the band 365 may be connected to the side wall 350 by different numbers of ribs, or by a window or membrane-like thinned wall section.
  • Two diametrically opposed wedge-like lugs 340 , 345 are internally positioned on the band 365 .
  • the lugs 340 , 345 are circumferentially positioned between the pressing pads 331 , 332 on the side wall 350 so that the pads 331 , 332 and lugs 340 , 345 are spaced by 90° from each other, in the same way as the points on a compass.
  • FIGS. 21 and 22 there is shown schematic under plan views of the closure 310 .
  • the closure 310 is shown connected to a container neck 370 , which includes external screw thread formations (not shown) for engaging the corresponding threads on the closure 310 .
  • the container neck 370 also comprises a pair of diametrically opposed abutment lugs 375 , 380 positioned to engage the locking lugs 340 , 345 of the closure 310 .
  • FIG. 21 shows the closure 310 in the locked position in which the closure 310 is fully screwed on to the container neck 370 and the locking lugs 340 , 345 engaged the abutment lugs 375 , 380 on the container neck 370 .
  • the closure 310 cannot be rotated relative to the container neck 370 due to the abutment of the closure 310 and the container lugs.
  • the lugs 340 , 345 In order for the closure to be rotated, the lugs 340 , 345 must be moved radially outward with respect to the abutment lugs 375 , 380 .
  • the ribs 360 only connect to the band 365 in the region of the pads 331 , 332 , this creates regions of reduced stiffness in the vicinity of the lugs, where no extended ribs 360 are present. Accordingly, the force required on the pads 331 , 332 is reduced. This has the same effect as localized windows or membrane wall sections.
  • FIGS. 23 through 25 there is shown a closure 410 formed according to an alternative embodiment.
  • the closure 410 is very similar to the closure 310 shown in FIGS. 18 through 22 .
  • all of the ribs 460 extend so as to connect the band 465 .
  • the gap 466 between the band 465 and the side wall provides a region of reduced stiffness on. the closure 410 .
  • FIG. 26 there is shown a closure 510 formed according to an alternative embodiment.
  • the closure 510 is very similar to the closure 410 shown in FIGS. 23 through 25 .
  • additional ribs 561 are provided.
  • the ribs 561 extend across the side wall 550 perpendicular to the ribs 560 to give a crisscross, lattice-like rib structure. All of the ribs 560 , 561 connect to the band 565 .
  • the gap 566 provides a region of reduced stiffness.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Closures For Containers (AREA)
  • Discharge Heating (AREA)
  • Pens And Brushes (AREA)
  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
  • Materials For Medical Uses (AREA)
US12/867,558 2008-02-19 2009-01-11 Child-resistant closure Abandoned US20100320168A1 (en)

Applications Claiming Priority (7)

Application Number Priority Date Filing Date Title
GB0802995.1 2008-02-19
GB0802995A GB0802995D0 (en) 2008-02-19 2008-02-19 A child-resistant closure
GB0803433.2 2008-02-26
GB0803433A GB0803433D0 (en) 2008-02-26 2008-02-26 A child-resistant closure
GB0807889A GB0807889D0 (en) 2008-04-30 2008-04-30 A child-resistant closure
GB0807889.1 2008-04-30
PCT/GB2009/000378 WO2009103947A1 (en) 2008-02-19 2009-02-11 A child-resistant closure

Publications (1)

Publication Number Publication Date
US20100320168A1 true US20100320168A1 (en) 2010-12-23

Family

ID=40580849

Family Applications (1)

Application Number Title Priority Date Filing Date
US12/867,558 Abandoned US20100320168A1 (en) 2008-02-19 2009-01-11 Child-resistant closure

Country Status (10)

Country Link
US (1) US20100320168A1 (es)
EP (2) EP2386497B9 (es)
AT (1) ATE535464T1 (es)
BR (1) BRPI0907466B1 (es)
CA (1) CA2752861C (es)
ES (2) ES2377542T3 (es)
HK (1) HK1146028A1 (es)
MX (1) MX2010008526A (es)
PL (1) PL2386497T3 (es)
WO (1) WO2009103947A1 (es)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120211460A1 (en) * 2011-02-18 2012-08-23 Guala Pack S.P.A. Cap for Containers
US8651304B2 (en) 2011-06-08 2014-02-18 Mwv Slatersville, Llc Dispensing closure
CN105592934A (zh) * 2013-10-10 2016-05-18 阿普塔尔拉多尔夫策尔有限责任公司 儿童防护排放装置
US9371165B2 (en) 2013-08-16 2016-06-21 Westrock Slatersville, Llc Two-piece child-resistant dispensing closure
US9545264B2 (en) * 2014-06-06 2017-01-17 Surgiquest, Inc. Trocars and obturators
USD800572S1 (en) * 2016-07-26 2017-10-24 Reckitt Benckiser (Brands) Limited Spray canister with child-resistant cap
USD841471S1 (en) 2017-02-24 2019-02-26 S. C. Johnson & Son, Inc. Bottle
USD845135S1 (en) 2017-02-24 2019-04-09 S. C. Johnson & Son, Inc. Bottle neck with cap
WO2021224101A1 (en) 2020-05-05 2021-11-11 Bericap Uk Ltd Tamper evident & child resistant closure
US11807425B2 (en) 2016-01-19 2023-11-07 Obrist Closures Switzerland Gmbh Child-resistant closure system
US11873147B2 (en) * 2018-02-27 2024-01-16 Compgen Ltd Container with child resistant means

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012209985B4 (de) * 2012-06-14 2017-01-19 Henkel Ag & Co. Kgaa Adapterartige Vorrichtung zur Kopplung zweier Behälter
DE102013000756A1 (de) * 2013-01-17 2014-07-17 Meadwestvaco Calmar Gmbh Kindergesicherte Austragvorrichtung
DE102013000755A1 (de) * 2013-01-17 2014-07-17 Meadwestvaco Calmar Gmbh Kindergesicherte Austragvorrichtung
GB201412940D0 (en) 2014-07-22 2014-09-03 Reckitt Benckiser Brands Ltd Closure
US9975673B2 (en) 2014-12-23 2018-05-22 S.C. Johnson & Son, Inc. Squeeze and turn child resistant closure attachment
US10676257B2 (en) 2016-06-06 2020-06-09 The Procter & Gamble Company Container systems with a squeeze-and-turn closure
USD835993S1 (en) 2016-07-18 2018-12-18 The Procter & Gamble Company Container with lid
US11618619B2 (en) * 2017-11-21 2023-04-04 Drug Plastics & Glass Company, Inc. Child-resistant single wall squeeze and turn closure and container assembly

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BRPI0907466B1 (pt) 2021-07-13
CA2752861C (en) 2016-08-23
CA2752861A1 (en) 2009-08-27
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EP2254805B1 (en) 2011-11-30
EP2386497B9 (en) 2013-10-02
MX2010008526A (es) 2010-08-31
EP2254805A1 (en) 2010-12-01
HK1146028A1 (en) 2011-05-13
BRPI0907466A2 (pt) 2015-07-14
ES2377542T3 (es) 2012-03-28
WO2009103947A1 (en) 2009-08-27

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