EP1196330A1 - Bouchon filete en matiere plastique - Google Patents

Bouchon filete en matiere plastique

Info

Publication number: EP1196330A1
Authority: EP; European Patent Office
Prior art keywords: screw cap; sealing lip; closure; spacer; cap according
Prior art date: 1999-07-22
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

EP00943511A

Other languages

German (de)

English (en)

Other versions

EP1196330B1 (fr

Inventor

Wilhelm Wazel

Robert Armin Gilgen

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.)

Mouldtec Kunststoff GmbH

Original Assignee

Mouldtec Kunststoff 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.)

1999-07-22

Filing date

2000-07-20

Publication date

2002-04-17

2000-07-20 Application filed by Mouldtec Kunststoff GmbH filed Critical Mouldtec Kunststoff GmbH

2002-04-17 Publication of EP1196330A1 publication Critical patent/EP1196330A1/fr

2003-06-11 Application granted granted Critical

2003-06-11 Publication of EP1196330B1 publication Critical patent/EP1196330B1/fr

2020-07-20 Anticipated expiration legal-status Critical

Status Expired - Lifetime legal-status Critical Current

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
- B65D41/00—Caps, e.g. crown caps or crown seals, i.e. members having parts arranged for engagement with the external periphery of a neck or wall defining a pouring opening or discharge aperture; Protective cap-like covers for closure members, e.g. decorative covers of metal foil or paper
- B65D41/02—Caps or cap-like covers without lines of weakness, tearing strips, tags, or like opening or removal devices
- B65D41/04—Threaded or like caps or cap-like covers secured by rotation
- B65D41/0435—Threaded or like caps or cap-like covers secured by rotation with separate sealing elements
- B65D41/045—Discs
- 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
- B65D51/00—Closures not otherwise provided for
- B65D51/16—Closures not otherwise provided for with means for venting air or gas
- B65D51/1633—Closures not otherwise provided for with means for venting air or gas whereby venting occurs by automatic opening of the closure, container or other element
- B65D51/1661—Closures not otherwise provided for with means for venting air or gas whereby venting occurs by automatic opening of the closure, container or other element by means of a passage for the escape of gas between the closure and the lip of the container mouth

Definitions

the invention relates to a screw cap made of plastic for screwing onto a thread on a bottle neck of a bottle according to the preamble of patent claim 1.
This support rib is coupled to the cap base or the closure membrane in such a way that, if the cap base bulges or the sealing washer or closure membrane is in contact with the inside of the closed bottle due to excess pressure, it can be lifted from the edge of the bottle opening and thus automatically vented from the bottle interior.
a screw cap made of plastic for closing a bottle is known from DE-Al 198 47 001, which does not require a sealing membrane. Inside the screw cap there is a sealing lip with a conical sealing surface which, when the screw cap is screwed on, rests against an outer sealing edge of the circular end face of the bottle mouth.
recesses are provided which extend from an area which, when the screw cap is screwed on, lies just outside the sealing edge, towards the edge of the sealing lip and are connected to the surroundings. If the base of the screw cap bulges outwards when the internal pressure is increased, the sealing lip slides with its sealing surface on the sealing edge. As soon as the pressure in the bottle and thus the bulge of the bottom is sufficiently large, come the recesses in the area of the sealing edge and thus create a passage for the gases from inside the bottle to the surroundings, so that excess pressure can escape.
the blow-off time or the blow-off pressure can be set sufficiently precisely.
the segmentation of the sealing lip also has an advantageous effect.
the segmentation can be divided into n circular segments with minimal tangential distances or can be provided with distances that have the same or greater length than the lengths of the segments of the sealing lip.
the tight reclosure of the bottle is achieved after the desired pressure drop.
FIG. 1 shows a cross section through a screw cap with an inserted sealing membrane before being screwed onto a bottle neck and with a guarantee tape
FIG. 2 shows an enlarged section of the screw cap according to FIG. 1
Figure 3 shows a partial cross section through the
Figure 4 shows a partial cross section through the
Screw cap and the bottle neck with increased internal pressure (without blowing off) and
Figure 5 shows a partial cross section through the
Figure 6 is a bottom view of the cap bottom with segmented sealing lip; left half with a segmentation with incisions, right half with a segmentation with large distances.
the screw closure 1 shown in FIGS. 1 to 6 comprises a closure base 3 and an adjoining, essentially cylindrical closure jacket 5, on the inside of which threaded sections 7 are formed. Ribs 9 or the like can be provided on the outside of the closure jacket 5, which facilitate the removal of the closure from the neck 11 of a bottle 13 (FIGS. 3 to 5). An originality securing ring 16 can be injection molded onto the lower edge 14 of the screw closure 1 in a known manner.
the closure jacket 5 has a cylindrical section 15 on the inside, to which a second section 17, which extends in the shape of an arc or a straight line inwards, connects and forms the connection area to the closure bottom.
the thickness of the wall of the screw closure 1 decreases in the region of the arcuate or straight second section 17. It is much smaller than in the area of the bottom 3.
a sealing lip 19 adjoins the second section 17, the peripheral surface 21 of which, in the unloaded state, runs essentially cylindrical and can partially lie opposite the section 15 in parallel.
the sealing lip 19 extends from the apex S 2 of the groove 22 formed by the section 15 and the periphery 21 to a height h-
the inside flank 23 of the sealing lip 19 initially runs essentially parallel to the periphery 21 and then passes into a step P, which acts as a drying edge, which leads to a thickening and the sealing lip 19 up to the root 29 gives a higher rigidity.
the stage P is at the height h 2 (FIG. 1).
the radially inner flank 25 of the sealing lip 19 which adjoins the step P runs radially slightly inwardly inclined up to the height h 3 and ends there at the apex S ⁇ (see FIG. 1).
the sealing lip 19 can form a circumferential ring ( Figures 1 and 2) or be divided into a plurality of circular ring segments (FIG. 6).
the circumferential sealing lip 19 can be divided into a plurality of segments 19' only by cuts 19 '' (left half of FIG. 6), and on the other hand, there can be distances between the segments 19 ' be formed, whose length A corresponds to the length B of the segments 19 'or is greater (right half of Figure 6).
the segments 19 'and the distances each comprise 60 angular degrees or 45 angular degrees.
the reduction in the thickness of the base 3 in the region of at least the apex S- forms an elastic zone which, when the base 3 bulges out, causes a relative movement of the sealing lip 19 to be described later.
the second downward wall 27 of the groove-shaped space 28 under the apex S- ends approximately at the height h 2 and forms the outer flank of a rib-shaped spacer 31, which comes to rest over the end face 33 of the bottle neck 11 when the screw cap 1 is placed on the bottle 13.
a further elastic spacer 35 can be arranged in a rib-shaped manner concentric with the spacer 31.
the closure bottom 3 can laterally of the radially inside lying spacer 35 also have a circumferential groove 36, which leads to a local reduction in the thickness of the closure bottom.
the thickness is preferably the sealing membrane 37 between the periphery and the contact area with the elastic spacer 35 greater than the thickness d 2 in the central area.
the closure membrane 37 it is possible to design the closure membrane 37 as an annular surface which extends essentially from the thread 7 to radially within the inner spacer 35.
the periphery 38 of the closure membrane 37 lies outside the peripheral surface 21 of the sealing lip 19, so that the apex 24 of the latter abuts the closure membrane 37 briefly in a line shape before the screw closure
the pressure inside the bottle 13 rises above a predetermined level as a result of cooking or excessive heating of the bottle contents, this leads to a domed bulging of the closure base 3 (FIG. 4).
the bulging of the closure base 3 is additionally promoted by the at least one annular thinning of the cap base 3 in the region of the apex S T of the incision or space 28 between the sealing lip 19 and the spacer 31. This means that the sealing lip 19 itself moves slightly axially upwards when the base 3 bulges out and there is a radially inward displacement of the point Q in the root region 29. This causes the sealing lip 19 to tilt about the point P at the step 23.
This translational movement reduces the pressure of the sealing lip 19 on the edge region 39 of the bottle neck 11.
the pressure of the closure membrane 37 on the central region of the end face 33 of the bottle neck 11 is also reduced and enables this Blowing off gas and thereby reducing the overpressure inside the bottle.
the blowing off is additionally promoted by the deflection of the sealing membrane 37 into the space between the sealing lip 19 and the spacer 31 (cf. FIG. 5).

Landscapes

Engineering & Computer Science (AREA)
Mechanical Engineering (AREA)
Closures For Containers (AREA)
Insulators (AREA)
Finger-Pressure Massage (AREA)
Materials For Medical Uses (AREA)

EP00943511A 1999-07-22 2000-07-20 Bouchon filete en matiere plastique Expired - Lifetime EP1196330B1 (fr)

Applications Claiming Priority (5)

Application Number	Priority Date	Filing Date	Title
CH133899		1999-07-22
CH133899		1999-07-22
CH236399		1999-12-23
CH236399		1999-12-23
PCT/CH2000/000399 WO2001007334A1 (fr)	1999-07-22	2000-07-20	Bouchon filete en matiere plastique

Publications (2)

Publication Number	Publication Date
EP1196330A1 true EP1196330A1 (fr)	2002-04-17
EP1196330B1 EP1196330B1 (fr)	2003-06-11

Family

ID=25687389

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP00943511A Expired - Lifetime EP1196330B1 (fr)	1999-07-22	2000-07-20	Bouchon filete en matiere plastique

Country Status (8)

Country	Link
EP (1)	EP1196330B1 (fr)
AT (1)	ATE242737T1 (fr)
AU (1)	AU5800300A (fr)
DE (1)	DE50002548D1 (fr)
DK (1)	DK1196330T3 (fr)
ES (1)	ES2200888T3 (fr)
PT (1)	PT1196330E (fr)
WO (1)	WO2001007334A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
FR2856663B1 (fr) *	2003-06-24	2005-07-22	Pechiney Capsules	Capsule de bouchage a vis amelioree
FR2907429B1 (fr) *	2006-10-24	2010-11-12	Alcan Packaging Capsules	Capsule de bouchage a joint de forme multicouche

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US4592475A (en) *	1982-12-06	1986-06-03	Charles N. Hannon	Plastic closure with mechanical pilfer-proof
US4531649A (en) *	1984-04-23	1985-07-30	Anchor Hocking Corporation	Molded plastic cap with sealing liner
DE4241341C1 (de)	1992-12-08	1993-12-23	Wilhelm Dipl Ing Wazel	Verschluß, insbesondere Flaschenverschluß
AU1153299A (en)	1997-10-25	1999-05-17	Safety Cap System Ag	Plastic screw cap for closing a bottle or the like

2000
- 2000-07-20 EP EP00943511A patent/EP1196330B1/fr not_active Expired - Lifetime
- 2000-07-20 AU AU58003/00A patent/AU5800300A/en not_active Abandoned
- 2000-07-20 PT PT00943511T patent/PT1196330E/pt unknown
- 2000-07-20 WO PCT/CH2000/000399 patent/WO2001007334A1/fr not_active Ceased
- 2000-07-20 ES ES00943511T patent/ES2200888T3/es not_active Expired - Lifetime
- 2000-07-20 DK DK00943511T patent/DK1196330T3/da active
- 2000-07-20 DE DE50002548T patent/DE50002548D1/de not_active Expired - Lifetime
- 2000-07-20 AT AT00943511T patent/ATE242737T1/de active

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO0107334A1 *

Also Published As

Publication number	Publication date
ES2200888T3 (es)	2004-03-16
EP1196330B1 (fr)	2003-06-11
PT1196330E (pt)	2003-09-30
DK1196330T3 (da)	2003-09-22
ATE242737T1 (de)	2003-06-15
WO2001007334A1 (fr)	2001-02-01
AU5800300A (en)	2001-02-13
DE50002548D1 (de)	2003-07-17

Publication	Publication Date	Title
EP0690812B1 (fr)	1997-07-30	Bouchon filete a protection en cas de serrage excessif
EP1105318B1 (fr)	2002-10-02	Capuchon de fermeture
EP0308753B1 (fr)	1991-09-04	Capuchon à vis en particulier pour bouteilles de vin mousseux
DE4301306C2 (de)	1995-12-21	Kunststoffverschluß
WO1997028057A1 (fr)	1997-08-07	Goulot d'un recipient et coiffe de fermeture a filetage a double pas
DE3100424A1 (de)	1981-11-19	Verschlusskappe mit seitenabdichtung
EP0093690A1 (fr)	1983-11-09	Fermeture pour récipient
EP3817990B1 (fr)	2024-02-14	Bouchon fileté doté d'un joint d'étanchéité réglé
WO2005108216A1 (fr)	2005-11-17	Contenant
EP0716638B1 (fr)	1999-12-08	Bouchon de fermeture
WO2000015504A2 (fr)	2000-03-23	Bouchon de fermeture
EP0784574B1 (fr)	1999-03-10	Couvercle de bouteilles ou similaires
EP0529383B2 (fr)	2002-10-16	Capuchon à vis en plastique pour bouteilles sous pression
EP1097877A1 (fr)	2001-05-09	Capuchon de fermeture
DE3426427A1 (de)	1985-07-04	Flaschenverschluss
DE69302966T2 (de)	1996-10-10	Einstückiger Kunststoffverschluss
EP1196330B1 (fr)	2003-06-11	Bouchon filete en matiere plastique
EP1755973B1 (fr)	2008-01-02	Element de fermeture
WO2000027722A1 (fr)	2000-05-18	Capuchon pour bouteilles a goulot filete
EP0090143A1 (fr)	1983-10-05	Fermeture de sécurité à pression et à vissage interdisant aux jeunes enfants l'accès au contenu des récipients
EP1092639A1 (fr)	2001-04-18	Capsule en matière plastique
EP0672009A1 (fr)	1995-09-20	Systeme de fermeture, notamment pour bouteilles
DE3108517A1 (de)	1982-11-11	"verschlusskappe aus kunststoff"
WO1999057032A1 (fr)	1999-11-11	Bouchon filete pour bouteilles
EP1092638A1 (fr)	2001-04-18	Capsule en matière plastique

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