WO1994022734A1 - Contenant a fermeture spherique de securite inviolable par les enfants - Google Patents

Contenant a fermeture spherique de securite inviolable par les enfants Download PDF

Info

Publication number
WO1994022734A1
WO1994022734A1 PCT/DK1994/000143 DK9400143W WO9422734A1 WO 1994022734 A1 WO1994022734 A1 WO 1994022734A1 DK 9400143 W DK9400143 W DK 9400143W WO 9422734 A1 WO9422734 A1 WO 9422734A1
Authority
WO
WIPO (PCT)
Prior art keywords
container
closure
projection
thread groove
thread
Prior art date
Application number
PCT/DK1994/000143
Other languages
English (en)
Inventor
Arne Bendix Nielsen
Original Assignee
Arne Bendix Nielsen
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 Arne Bendix Nielsen filed Critical Arne Bendix Nielsen
Priority to AU65347/94A priority Critical patent/AU6534794A/en
Priority to DE69408529T priority patent/DE69408529D1/de
Priority to EP94913039A priority patent/EP0691920B1/fr
Publication of WO1994022734A1 publication Critical patent/WO1994022734A1/fr

Links

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 container with a child- resistant cup-shaped closure, the opening of the said con ⁇ tainer being a neck with an external thread in the form of a thread groove for interaction with a radial projection on the internal circular side wall of the cup-shaped closure, whereby the thread has a blocking device in that side of the thread which is in frictional engagement with the pro ⁇ jection when the closure is being unscrewed, so that the projection is caught by the blocking device when unscrewing the closure.
  • a container is known from US patent no. 3 497 096 with a child-resistant cup-shaped closure of the above indicated kind.
  • the closure is provided with a single internal pro ⁇ jection which normally slides along a helical groove on the neck of the container towards a position where the closure seals the container.
  • the projection may op ⁇ tionally pass through a passageway into a locking device or locking groove which in opposite directions of rotation extends a distance away from the passage.
  • the thread and the locking groove has the same width everywhere.
  • the projection By rotating the closure in opposite directions, the projection will slide backwards and forwards in the locking groove, in that the rotations will inevitably cause it to hit either the one or the op ⁇ posite end of the locking groove. Since the locking groove extends to each side away from the passageway, it is neces ⁇ sary when unscrewing the closure to know the position of the passageway and the projection on the thread and the closure, respectively, in order for the projection to catch the passageway and have the projection pulled out through it so as for the projection by its engagement with the thread to permit the closure to be unscrewed from the con ⁇ tainer.
  • the known container is thus encumbered with the disadvant ⁇ age that it is difficult to determine the position of the - passageway of the locking groove in relation to the projec ⁇ tion, even if one is familiar with the mode of operation of the locking device. Moreover, it is difficult to screw the closure onto the known container.
  • This object is obtained by a container of the kind referred to in the preamble, which container according to the inven- tion is characteristic in that the width of the thread groove on the last portion of the rotation which is closest to the container, is expanded in axial direction in rela ⁇ tion to the width of the remaining outermost portion of the thread groove, and in that the passage between the expanded portion and the remaining portion of the thread groove is configured as a .stop to catch the projection of the clos ⁇ ure.
  • the projection When the closure is screwed onto the thread of the contain ⁇ er, the projection will initially move in a frictional en- gagement with that side of the thread groove which is farthest away from the container until a seal on the end wall of the cup-shaped closure abuts the neck opening of the container. Due to the compression of the seal the frictional engagement of the projection with the said side of the thread groove will be increased in that the seal will thus become sufficiently compressed to seal the con ⁇ tents of the container.
  • the thread groove thus has the ap ⁇ pearance of a usual thread groove.
  • the pro ⁇ jection When the closure is unscrewed from the container, the pro ⁇ jection will initially continue to be in frictional engage ⁇ ment with that portion of the thread groove which turns away from the container due to the flexibility of the seal which will seek to resume its normal thickness. After turn- ing of the closure the tension stemming from the flexibil ⁇ ity of the seal will be relaxed, after which the projection will be in frictional engagement with that side of the thread groove which is closest to the container. The pro ⁇ jection will therefore now hit the stop formed by the pas- sage between the expanded and the normal portion of the thread groove and be caught by the stop so that the closure cannot just be twisted past it.
  • the closure must therefore be turned a small angle in the opposite direction, after which an axial force can be ex ⁇ erted on the closure in the direction away from the con- tainer so that the projection is brought into frictional engagement with the side of the thread groove turning away from the container so as to permit the unscrewing of the closure from the container, at least until the projection has passed the stop.
  • the projection When the projection is configured as a stop to catch the projection when this touches the stop, it is prevented that the application of an axially directed force on the closure in the direction away from the container by this position of projection and locking groove will bring the projection in frictional engagement with that side of the thread groove which turns away from the container.
  • the container and the child- resistant cup-shaped closure according to the invention devise a far more simple technical effect, because it is possible when unscrewing the closure to feel when the pro ⁇ jection meets the stop and is caught by it. Then, the clos- ure must be turned in the opposite direction and be lifted followed by a new turning.
  • Fig. 1 shows a side view of part of a container according to the invention, which container has a neck with an external thread groove for interaction with a cup-shaped closure
  • fig. 2 shows a side view and a partial section of a cup- shaped closure to be used on the container shown in fig. 1, and
  • fig. 3 shows an enlarged section of the thread groove shown in fig. 1 where an internal projection in the closure shown in fig. 2 is implied as being in engagement with the thread groove in three differ- ent positions.
  • Fig. 1 shows the whole of a container with the reference numeral 1.
  • the container 1 has a neck 2 provided with an external thread 3 which in the form of a thread groove 4 extends helically in a known manner on the outside 5 of the neck 2.
  • the thread groove 4 has two sides 4a, 4b, of which the side 4a is the side farthest away from the container 1, and the side 4b is closest to the container 1.
  • the thread groove 4 extends round along the outside 5 of the neck 2 of the container 1; if required, however, it may also describe more rounds.
  • the neck 2 ends in an end sur ⁇ face 6 which can form the contact face for a seal 14 in a cup-shaped closure as shown in figure 2 and as a whole re- ferred to by the reference numeral 10.
  • the outermost portion of the thread groove 4 i.e. that portion which is farthest away from the container 1 and forms the entrance to the thread groove, has a first width a seen in the axial direction of the neck 2, and the inner ⁇ most portion of the thread groove has a width b which com ⁇ pared to the width a is preferably twice as wide.
  • the in ⁇ nermost portion of the thread groove 4 with the width b extends the last distance around the outside 5 of the neck 2.
  • the passage between the narrow and the wide portion of the thread groove 4 is configured in such a manner that a stop 8 is provided extending a distance below the wall 4b at the passage to the narrow portion of the thread groove 4 as shown more clearly in fig. 3. This embodiment of the stop 8 produces a beak 7 which can catch a projection 15 on the closure 10 as will be explained below.
  • the closure 10 is cup-shaped and has a circular side wall 11 with an inner surface 12.
  • the closure furthermore has an end wall 13 which can be provided with the said seal 14.
  • the inside 12 has a radial projection 15 designed so as to be able to engage and interact with the thread 3 on the neck 2 of the container 1 so that the closure can be screw- ed onto the container 1.
  • the projection 15 is preferably made with a circular cross section and is easy to manufacture.
  • the projection 15 is thus placed at such a distance from the end wall 13 of the closure 10 and the seal 14 that the seal 14 is compressed for the sealing of the contents of the container 1 when the closure 10 is screwed so tightly to the neck 2 of the container 1 that the projection 15 has passed the passage between the narrow and the wide portion of the thread groove 4.
  • the projection 15 When the closure 10 is screwed onto the thread 3 of the container 1 the projection 15 will initially move in a frictional engagement with that side 4a of the thread groove 4 which is farthest away from the container 1 until the seal 14 on the end wall 13 of the cup-shaped closure 10 rests on the neck opening or end surface 6 of the con ⁇ tainer.
  • the fric- tional engagement of the projection 15 with the said side 4a of the thread groove 4 will be increased, thus providing the required sealing of the contents of the container 1.
  • the projection 15 When the closure 10 is unscrewed from the container 1, the projection 15 will at first still be in frictional engage ⁇ ment with the side 4a of the thread groove 4 being farthest away from the container 1 due to the flexibility of the seal 14 which seeks to resume its normal thickness. After a certain rotation of the closure 10 the tension stemming from the flexibility of the seal 14 will be relaxed, after which the projection 15 will be in frictional engagement with the side 4b of the thread groove 4 closest to the con ⁇ tainer 1. The projection 15 will therefore now hit the stop 8 produced by the passage between the wide and the narrow portion of the thread groove 4 and be caught there so that the closure 10 can not just be turned past the stop 8.
  • the design of the passage is configured complementary to the circular cross section of the projection 15, whereby a beak 7 is produced at the said passage or stop 8 which beak receives the projection 15.
  • the closure 10 must therefore be turned a small angle in the opposite direction, after which an axial force implied by the arrow 16 can be exerted on the closure 10 away from the container 1 causing the projection 15 to be brought in frictional engagement with that side 4a of the thread groove 4 turning away from the container 1, at least until the projection 15 is brought past the stop 8 for unscrewing the closure 10 from the container 1.
  • the container 1 with a child- resistant cup-shaped closure 10 is described with an ex- ternal thread 3 on the neck 2 of the container and with a projection 15 inside the cup-shaped closure.
  • the thread in stead may be configured on the inside of the cup-shaped closure and the projection on the neck of the container. It is also obvious that the thread can be double or multi ⁇ threaded although the invention is explained by a single- threaded embodiment.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Closures For Containers (AREA)

Abstract

L'invention concerne un contenant (1) à fermeture sphérique de sécurité (10) inviolable par les enfants, et dont l'ouverture est constituée d'un goulot (2) comprenant un filet externe (3) se présentant sous la forme d'une rainure de filetage (4) destinée à fonctionner conjointement avec une saillie radiale (15) située sur la paroi latérale circulaire et interne (11) de la fermeture sphérique (10). Le filet (3) est doté d'un dispositif de blocage sur le côté (4a) de la rainure de filetage (4) qui est en prise par friction avec la saillie (15) lorsque la fermeture est dévissée, de sorte que ladite saillie soit bloquée par le dispositif de blocage lorsque la fermeture est dévissée. De manière à permettre à l'utilisateur d'ouvrir le contenant sans qu'il connaisse la position du dispositif de blocage par rapport à la saillie (15) à l'intérieur (12) de la paroi circulaire (11) de la fermeture (10), la largeur (b) de la rainure de filetage (4) sur la dernière partie de la rotation la plus proche du contenant (1) est plus importante dans le sens axial par rapport à la largeur (a) de la partie restante la plus à l'extérieur de la rainure de filetage (4). De plus, le passage entre la partie élargie et la partie restante de la rainure de filetage (4) est configuré comme une butée (7, 8) de manière à arrêter la saillie (15) de la fermeture (10).
PCT/DK1994/000143 1993-04-07 1994-04-06 Contenant a fermeture spherique de securite inviolable par les enfants WO1994022734A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
AU65347/94A AU6534794A (en) 1993-04-07 1994-04-06 Container having a child-proof, cup-shaped closure
DE69408529T DE69408529D1 (de) 1993-04-07 1994-04-06 Behälter mit einem kindergesicherten, becherförmigen verschluss
EP94913039A EP0691920B1 (fr) 1993-04-07 1994-04-06 Contenant a fermeture spherique de securite inviolable par les enfants

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DK0418/93 1993-04-07
DK41893A DK171176B1 (da) 1993-04-07 1993-04-07 Beholder med et børnesikret, kopformet lukke

Publications (1)

Publication Number Publication Date
WO1994022734A1 true WO1994022734A1 (fr) 1994-10-13

Family

ID=8093294

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DK1994/000143 WO1994022734A1 (fr) 1993-04-07 1994-04-06 Contenant a fermeture spherique de securite inviolable par les enfants

Country Status (5)

Country Link
EP (1) EP0691920B1 (fr)
AU (1) AU6534794A (fr)
DE (1) DE69408529D1 (fr)
DK (1) DK171176B1 (fr)
WO (1) WO1994022734A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7918356B2 (en) 2006-01-27 2011-04-05 Amcor Limited Preform and container having thread groove
US8308002B2 (en) 2006-01-27 2012-11-13 Amcor Limited Preform and container having thread groove of varying depth
US8413829B2 (en) 2006-01-27 2013-04-09 Amcor Limited Blow-molded container having finish with thread groove and tamper evident features
KR102673533B1 (ko) * 2021-07-06 2024-06-11 이정문 미로형 마개 잠금 구조

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DK9800023U4 (da) 1998-01-23 1999-08-13 Nielsen Arne Bendix Beholder med et børnesikret, kopformet lukke

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2264792A (en) * 1939-04-10 1941-12-02 Hazel Atlas Glass Co Centering device for container caps
US3497096A (en) * 1968-09-04 1970-02-24 Lok A Way Inc Container and safety closure therefor
US3595417A (en) * 1969-05-13 1971-07-27 Arthur Albert Musher Safety closure
DE2421292A1 (de) * 1973-05-03 1974-11-21 Sunbeam Plastics Corp Sicherheitsverschluss
US3941268A (en) * 1975-01-08 1976-03-02 Owens-Illinois, Inc. Safety closure and container
EP0042603A1 (fr) * 1980-06-19 1981-12-30 Ethyl Products Company Fermeture de récipient à l'épreuve des manipulations enfantines
US5184741A (en) * 1990-08-17 1993-02-09 Techpack International, Tpi Societe Anonyme Receptacle with orientable screw-threaded cap

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2264792A (en) * 1939-04-10 1941-12-02 Hazel Atlas Glass Co Centering device for container caps
US3497096A (en) * 1968-09-04 1970-02-24 Lok A Way Inc Container and safety closure therefor
US3595417A (en) * 1969-05-13 1971-07-27 Arthur Albert Musher Safety closure
DE2421292A1 (de) * 1973-05-03 1974-11-21 Sunbeam Plastics Corp Sicherheitsverschluss
US3941268A (en) * 1975-01-08 1976-03-02 Owens-Illinois, Inc. Safety closure and container
EP0042603A1 (fr) * 1980-06-19 1981-12-30 Ethyl Products Company Fermeture de récipient à l'épreuve des manipulations enfantines
US5184741A (en) * 1990-08-17 1993-02-09 Techpack International, Tpi Societe Anonyme Receptacle with orientable screw-threaded cap

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7918356B2 (en) 2006-01-27 2011-04-05 Amcor Limited Preform and container having thread groove
US8308002B2 (en) 2006-01-27 2012-11-13 Amcor Limited Preform and container having thread groove of varying depth
US8413829B2 (en) 2006-01-27 2013-04-09 Amcor Limited Blow-molded container having finish with thread groove and tamper evident features
KR102673533B1 (ko) * 2021-07-06 2024-06-11 이정문 미로형 마개 잠금 구조

Also Published As

Publication number Publication date
EP0691920A1 (fr) 1996-01-17
DK171176B1 (da) 1996-07-15
DK41893D0 (da) 1993-04-07
DE69408529D1 (de) 1998-03-19
EP0691920B1 (fr) 1998-02-11
DK41893A (fr) 1994-10-08
AU6534794A (en) 1994-10-24

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