EP0524278A1 - Fermeture a declic en matiere plastique. - Google Patents

Fermeture a declic en matiere plastique.

Info

Publication number
EP0524278A1
EP0524278A1 EP92902956A EP92902956A EP0524278A1 EP 0524278 A1 EP0524278 A1 EP 0524278A1 EP 92902956 A EP92902956 A EP 92902956A EP 92902956 A EP92902956 A EP 92902956A EP 0524278 A1 EP0524278 A1 EP 0524278A1
Authority
EP
European Patent Office
Prior art keywords
closure
closure according
hinge
tensioning
attachment points
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
EP92902956A
Other languages
German (de)
English (en)
Other versions
EP0524278B1 (fr
Inventor
Werner Fritz Dubach
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.)
Medisize Schweiz AG
Original Assignee
Createchnic AG
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=4186692&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0524278(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Createchnic AG filed Critical Createchnic AG
Publication of EP0524278A1 publication Critical patent/EP0524278A1/fr
Application granted granted Critical
Publication of EP0524278B1 publication Critical patent/EP0524278B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • B65D47/00—Closures with filling and discharging, or with discharging, devices
    • B65D47/04—Closures with discharging devices other than pumps
    • B65D47/06—Closures with discharging devices other than pumps with pouring spouts or tubes; with discharge nozzles or passages
    • B65D47/08—Closures with discharging devices other than pumps with pouring spouts or tubes; with discharge nozzles or passages having articulated or hinged closures
    • B65D47/0804—Closures with discharging devices other than pumps with pouring spouts or tubes; with discharge nozzles or passages having articulated or hinged closures integrally formed with the base element provided with the spout or discharge passage
    • B65D47/0809—Closures with discharging devices other than pumps with pouring spouts or tubes; with discharge nozzles or passages having articulated or hinged closures integrally formed with the base element provided with the spout or discharge passage and elastically biased towards both the open and the closed positions
    • B65D47/0814—Closures with discharging devices other than pumps with pouring spouts or tubes; with discharge nozzles or passages having articulated or hinged closures integrally formed with the base element provided with the spout or discharge passage and elastically biased towards both the open and the closed positions by at least three hinge sections, at least one having a length different from the others

Definitions

  • the present invention relates to a plastic snap hinge closure consisting of a lower part and an upper part connected therewith via a film hinge, the closure jacket walls in the region of the hinge running straight or curved and having at least one tensioning element integrally connected to both closure parts, and that which has at least one clamping element in the middle - or has a respective attachment point on the jacket walls of both parts.
  • Plastic snap hinge closures of the type mentioned at the outset are known, for example, from the applicant's two European Patent Nos. 0 '1 7' 423 and 0 '291' 457.
  • the tensioning elements are tensioning straps which are molded onto consoles on the jacket wall of the lower part and the cover and thus lie in one plane
  • the tensioning straps arranged at least approximately in or on the jacket wall.
  • the tensioning bands mentioned run in one plane in the closed state and the attachment points of the tensioning bands are laid out of the jacket wall by the brackets in such a way that they lie parallel to the main axis.
  • the tensioning straps run in two mutually at an angle including the plane.
  • the outer phases of each strap have to travel a longer distance when opening than the inner phases of the straps, which are closer to the hinge.
  • the object of the present invention is to create a plastic snap hinge closure according to the preamble of the patent claim, in which the snap action can itself be achieved from the at least one tensioning element.
  • a plastic snap hinge closure of the type mentioned at the outset in which the at least one tensioning element consists of a plurality of sub-sections which, when the closure is closed, as a whole or with repeating regions of the sub-sections at least approximately in the plane between the connection points , and that each section carries out a change in length by elastic deformation when the closure is actuated.
  • FIG. 1 is a schematic functional representation of the snap action of a snap hinge closure according to the invention, which is equipped with a length-adjustable clamping element;
  • 2A + B each show a perspective view of a round snap hinge closure to explain the arrangement of the tensioning elements or the tensioning element with respect to the main hinge;
  • FIGS. 3a-5 show three different embodiments of length-adjustable clamping elements on round closures, each in variant a in the rear side view of the hinge of the closed closure and b in the respectively fully opened state of the same snap hinge closures;
  • FIG. 6a shows a further variant of the snap hinge closure on a box and Figure 6b is a partial vertical section through the box along the line AA of Figure 6a;
  • FIG. 7 shows the tensioning element according to FIG. 6 in use on a round closure in its fully open position
  • FIGS. 8a-d show a construction drawing of the tensioning element according to FIGS. 3a and b in detail, once in a side view corresponding to the fully opened production position of the closure and
  • FIG. 8b the same tensioning element in its position of the fully opened closure
  • FIG. 8d in the fully closed position
  • the functioning of the closure according to the invention is explained in the schematic illustration according to FIG.
  • the lower part of the closure is marked with 1 and can be placed on a container, for example.
  • the lower part 1 is covered by an upper part 2 in the closed state of the closure.
  • the upper part thus forms a lid or cap for the lower part 1.
  • the two parts 1 and 2 are integrally connected to one another via a film hinge 3.
  • the film hinge forms the axis of rotation, with respect to which the upper part 2 can be pivoted to the lower part 1 by approximately 180 °.
  • the film hinge 3 is offset with respect to the outer wall 6 of the lower part 1 and the outer wall 7 of the upper part 2 aligned therewith.
  • the reference number 8 denotes a schematically illustrated tensioning element. It has an upper attachment point 4 with which the tensioning element 8 is fastened to the upper part 2 and a lower attachment point 5 with which the tensioning element 8 is fastened to the lower part 1. Since both the axis of rotation, formed by the film hinge 3, and the upper attachment point 4 of the tensioning element 8 are arranged firmly on the closure, the upper attachment point moves 4 on an arc of a circle with the radius r around the film hinge 3. The tensioning element 8 is, however, not fixed in the area of the axis of rotation 3, but at the lower attachment point 5 and would therefore like to rotate about this point.
  • the degree of elasticity can be influenced by the design of the tensioning elements.
  • the maximum length change ⁇ ß and the location of the dead center are essentially only depending on the arrangement of the attachment point 4 and 5, with respect to the Fi hinge 3.
  • the designer thus has a high degree of freedom with regard to the design of a closure according to the invention. If, for example in the variant shown, the two attachment points 4 and 5 are set further inwards while maintaining the length of the tensioning element 8, the radius r is increased and accordingly on the one hand ⁇ C and on the other hand the angular position of the dead center changes.
  • the optimization of the snap effect can be derived directly from the drawing without experimentation. If the possible change in length ⁇ is relatively large, the tolerance with regard to the arrangement of the attachment points of the tensioning element is also wide. This is in stark contrast to the previously known plastic snap hinges, which only allow a small tolerance with regard to the geometric design.
  • FIGS. 2a and 2b each show a snap hinge closure in a perspective view to explain the possible arrangement of the snap hinge.
  • the variant according to FIG. 2a shows a relatively narrow film hinge 3, by means of which the lower part 1 is hingedly connected to the upper part 2 and, on both sides, a tensioning element arranged at the same distance from the film hinge 3
  • the variant according to FIG. 2 shows two film hinges 3 at a certain distance from one another and a tensioning element 8 arranged in between.
  • various combinations of one or more film hinges can be incorporated or several clamping elements.
  • FIGS. 3a, b-5a, b show three variants of plastic snap hinge closures according to the embodiment according to FIG. 2a, which differ only in the design of the tensioning elements 8. If one looks at FIGS. 3a, 4a and 5a, which each show the rear view of a closed closure, it can be seen that the attachment points 4, 5 of each individual tensioning element 8 each run parallel to one another when the closure is closed . In contrast, FIGS. 3b, 4b and 5b show the hinge areas of the corresponding closures in the fully opened position thereof. In this position, the connection points 4, 5 each run obliquely to one another. When designing the tensioning elements 8, one can proceed in such a way that in the fully open position of the end, as shown in FIGS.
  • connection points of the tensioning elements 8 are each arranged at least approximately flush with the jacket walls. However, this is not necessary. The connection points 4, 5 could easily pass into consoles which are molded onto the jacket walls and protrude from them.
  • FIGS. 4a and 4b show a variant in which the tensioning elements do not consist of identical sections. While the subsections which adjoin the attachment points 4, 5 are semi-elliptical sub-elements 11, a completely elliptical sub-element 12 is arranged in between. Of course, a clamping element 8 could also consist of three such elliptical, o-shaped part elements. It is only a question of definition, because with the same right one could recognize five C-shaped sub-elements in this form.
  • FIGS. 5a and b shows almost identical clamping elements, like those in FIGS. 3a and 3b.
  • the sections 10 are only arranged here in a different manner.
  • FIG. 6 shows that the use of the snap hinge closure according to the invention is not limited to the use of round or, as is the case, shaped closures of containers.
  • the snap hinge according to the invention is attached to a can 20.
  • the lower part 21 of the can is connected to the cover 22 of the can via the main hinge 23.
  • the two clamping elements arranged on both sides of the main hinge 23 are designated.
  • Each clamping element 28 consists of four U-shaped partial elements 24.
  • the partial sections 26 do not run within the plane that is spanned between the attachment points 24 and 25, but rather meander like a harmonica out of the plane between the two attachment points.
  • the tensioning elements consist of a plurality of U-shaped sections which are lined up in such a way that they have a region which is rounded inward with respect to the closure and outwardly flat with respect to the closure.
  • the flat areas 30 are arranged in such a way that they closed state of the closure lie in an aligned plane common to the jacket walls.
  • Such a design of the tensioning element is not only suitable for cans, but also for closures which are applied to a container. In this embodiment of the tensioning element too, the change in length is achieved by spreading out the U-shaped partial elements 26.
  • the tensioning elements can be formed by film hinges 32 in the area of the connection points 24, 25. This has the advantage that the tensioning elements 28 always run nicely in the plane between the two attachment points, regardless of the opening position of the closure or cover 22. In particular, this simplifies the design of the injection mold. If such a tensioning element 28 is attached to a round closure, as shown in FIG. 7, the partial sections 26 form a fan-shaped, length-adjustable band in the fully opened state of the closure.
  • FIG. 8a shows a partial side view of the No more in the hinge area.
  • the representation corresponds to the spray position in which the closure is fully open.
  • the lower part 1 is in turn connected to the upper part 2 via a film hinge.
  • the tensioning element 8 runs completely flat here and the attachment points 4, 5 are arranged in niches 14, 15 in the upper or lower part.
  • 8b shows the same situation in the top view of the tensioning band.
  • the drawing level is the level that is spanned by the attachment points 4 and 5. If one measures the distance between the centers of the two attachment points 4 and 5, which lie on the line BB, it is found that the distance is the smallest in this position.
  • This distance a is 4.7 mm in the real example shown here on a scale of 10: 1.
  • FIG. 8c in which the closure is shown in its dead center position, the tensioning element 8 has been changed to its greatest length, that is to say the individual partial elements are most widely spread.
  • the distance a has increased to 6.6 mm here. This corresponds to a percentage increase in length of around 40%.
  • the distance between the two attachment points 4.5 is still 5.0 mm. Consequently, the clamping element 8 is also in the closed state of the closure still under tension.
  • the change in length still bears more than 6%.
  • the maximum elastic change in length of the tensioning elements will preferably be selected between 10 and 50%. However, this is very much dependent on the geometric conditions. In addition to the percentage change in length, the tensile force exerted by the tensioning element is also important. This is influenced on the one hand by the geometrical design of the clamping element and on the other hand by the material strength of the sections. However, so that there is no deformation of the closure itself, it makes sense to make the wall thickness of the partial sections considerably less than the wall thickness of the jacket walls in the area of the attachment points. If the maximum elastic length change in percent is too small, a snap action only takes place in the area of the dead center. A 10% change in length in the dead center area should make sense as the lower limit.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Closures For Containers (AREA)
  • Springs (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
  • Pens And Brushes (AREA)
  • Seal Device For Vehicle (AREA)
  • Specific Sealing Or Ventilating Devices For Doors And Windows (AREA)

Abstract

Sur une fermeture en matière plastique constituée d'une partie inférieure (1) et d'une partie supérieure (2) reliées entre elles par une charnière principale (3) sont disposés des éléments de tension (8) qui permettent d'obtenir l'effet d'encliquetage souhaité au moyen de leurs variations de longueur sous l'action d'une force de traction. Les éléments de tension (8) se situent dans des plans entre les points d'attache (4, 5). Chaque élément de tension se compose de sections (10) qui provoquent les variations de longueur. Les sections peuvent être en forme de C, de U ou de O. Les éléments de tension (8) admettent une variation de longueur maximale d'environ 10 à 50 %.
EP92902956A 1991-02-12 1992-01-31 Fermeture a declic en matiere plastique Expired - Lifetime EP0524278B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CH423/91 1991-02-12
CH423/91A CH683092A5 (de) 1991-02-12 1991-02-12 Kunststoffschnappscharnierverschluss.
PCT/CH1992/000021 WO1992013775A1 (fr) 1991-02-12 1992-01-31 Fermeture a declic en matiere plastique

Publications (2)

Publication Number Publication Date
EP0524278A1 true EP0524278A1 (fr) 1993-01-27
EP0524278B1 EP0524278B1 (fr) 1996-03-06

Family

ID=4186692

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92902956A Expired - Lifetime EP0524278B1 (fr) 1991-02-12 1992-01-31 Fermeture a declic en matiere plastique

Country Status (12)

Country Link
EP (1) EP0524278B1 (fr)
JP (1) JP2812801B2 (fr)
AT (1) ATE134962T1 (fr)
AU (1) AU656559B2 (fr)
CA (1) CA2080347C (fr)
CH (1) CH683092A5 (fr)
CZ (1) CZ289621B6 (fr)
DE (1) DE59205547D1 (fr)
DK (1) DK0524278T3 (fr)
ES (1) ES2084343T3 (fr)
HU (1) HU216703B (fr)
WO (1) WO1992013775A1 (fr)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4335107A1 (de) * 1993-10-14 1995-04-20 Novator Ag Einteiliges Kunststoff-Schnappscharnier
FR2756261B1 (fr) 1996-11-22 1998-12-31 Nord Est Dev Bouchon a charniere, monopiece, pour bouteille a bague faisant office de verseur
EP1048582A1 (fr) * 1999-04-29 2000-11-02 Createchnic AG Tube en matière plastique muni d'un couvercle à charnière et son procédé de fabrication
DE60044162D1 (de) 1999-06-30 2010-05-20 Yoshino Kogyosho Co Ltd Kunststofftube
JP4749560B2 (ja) * 2001-02-05 2011-08-17 三笠産業株式会社 スナップヒンジキャップ
US6578744B2 (en) 2001-03-22 2003-06-17 Crown Cork & Seal Technologies Corporation Watertight tube closure
EP1468928A1 (fr) 2003-04-17 2004-10-20 Curver Rubbermaid France S.A.S. Système de panneaux pliable et récipient pliable
AT519724B1 (de) * 2017-03-09 2021-09-15 Pocket Sky Og Brille
WO2020144182A1 (fr) * 2019-01-07 2020-07-16 Alpla Werke Alwin Lehner Gmbh & Co. Kg Capuchon de fermeture pour fermer un contenant
CN112279047B (zh) * 2020-11-12 2021-12-28 森赫电梯股份有限公司 一种可翻转的电梯轿厢无边框匀光吊顶

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB190929697A (en) * 1909-12-18 1910-12-01 Heinrich Knapp Improvements in or relating to Door Closing Devices.
FR1399373A (fr) * 1964-06-24 1965-05-14 Articulation à rappel par ressort
DE1759430A1 (de) * 1968-04-30 1972-03-09 Lenox Werk Emil Liebke & Co Einteiliges scharnierartiges Gelenk aus Kunststoff
US3629902A (en) * 1970-06-04 1971-12-28 Meat Separator Corp Bone and meat separator
CH653639A5 (de) * 1981-01-21 1986-01-15 Zeller Plastik Koehn Graebner Einstueckiges klappscharnier aus kunststoff.
CH672771A5 (fr) * 1987-05-13 1989-12-29 Alfatechnic Ag
US4895282A (en) * 1988-08-01 1990-01-23 Owens-Illinois Closure Inc. Dispensing closure with pull tab for enlarging orifice
CH680430A5 (fr) * 1990-03-12 1992-08-31 Createchnic Ag

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9213775A1 *

Also Published As

Publication number Publication date
HU9203179D0 (en) 1993-03-01
WO1992013775A1 (fr) 1992-08-20
ES2084343T3 (es) 1996-05-01
HU216703B (hu) 1999-08-30
DK0524278T3 (da) 1996-04-01
JPH05505786A (ja) 1993-08-26
AU1176392A (en) 1992-09-07
JP2812801B2 (ja) 1998-10-22
CH683092A5 (de) 1994-01-14
CA2080347C (fr) 2003-07-29
CZ306392A3 (en) 1993-01-13
DE59205547D1 (de) 1996-04-11
CZ289621B6 (cs) 2002-03-13
HUT63108A (en) 1993-07-28
EP0524278B1 (fr) 1996-03-06
CA2080347A1 (fr) 1992-08-13
ATE134962T1 (de) 1996-03-15
AU656559B2 (en) 1995-02-09

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