EP0280024A1 - Capsule à vis pour récipients - Google Patents

Capsule à vis pour récipients Download PDF

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Publication number
EP0280024A1
EP0280024A1 EP88100596A EP88100596A EP0280024A1 EP 0280024 A1 EP0280024 A1 EP 0280024A1 EP 88100596 A EP88100596 A EP 88100596A EP 88100596 A EP88100596 A EP 88100596A EP 0280024 A1 EP0280024 A1 EP 0280024A1
Authority
EP
European Patent Office
Prior art keywords
ring
screw ring
screw
twist lock
cover
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
EP88100596A
Other languages
German (de)
English (en)
Other versions
EP0280024B1 (fr
Inventor
Heinrich Eberhardt
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to AT88100596T priority Critical patent/ATE74861T1/de
Publication of EP0280024A1 publication Critical patent/EP0280024A1/fr
Application granted granted Critical
Publication of EP0280024B1 publication Critical patent/EP0280024B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • B65D51/00—Closures not otherwise provided for
    • B65D51/14—Rigid discs or spherical members adapted to be held in sealing engagement with mouth of container, e.g. closure plates for preserving jars
    • B65D51/145—Rigid discs or spherical members adapted to be held in sealing engagement with mouth of container, e.g. closure plates for preserving jars by means of an additional element connected directly to the container

Definitions

  • the invention relates to a rotary closure for containers with a mouth, on the end face of which an annular surface cooperating with a sealing ring of the closure and on the periphery of which the rotary connection is provided are provided threads which cooperate with corresponding threads on an apron section of the rotary closure, the rotary closure being formed in two parts and consists of a screw ring with a thread and a plate-shaped cover part with the sealing ring, which is arranged in a form-fitting manner with the screw ring at an axial distance above the area of the thread and the screw ring consists of a moldable plastic and the cover part consists of sheet metal.
  • a rotary closure for containers has already been proposed, as specified in the preamble of claim 1 (DE-OS 33 22 326).
  • the sheet metal cover must be inserted from the open thread side of the screw ring, and therefore the outer diameter of the sheet metal cover may only be made slightly larger than the inner edge of the support ring or thread tips in the screw ring to prevent abrasion to avoid that can get into the filling material and due to the overlapping flange part can spring open only a little.
  • the sheet thickness of the cover is available as support for the sheet metal cover when screwing on in the screw ring, which must be regarded as unfavorable because of the manufacturing tolerances.
  • the shrink tolerance in the plastic screw ring in particular exceeds the small contact area.
  • the present invention is therefore based on the object of developing a rotary closure of the type mentioned in such a way that a good seal can be achieved after filling and also after opening when the container is reclosed.
  • a twist lock of the type mentioned is proposed, which is characterized by the features specified in claim 1.
  • a two-part twist lock has been created, in which there is a non-positive connection between the cover part made of sheet metal and the screw ring made of plastic, the connection between the screw ring and the cover part being such that they can be rotated relative to one another and can be opened without play. and unscrewing the screw cap on an appropriate container is made possible. It ensures that the seal in the lid is pressed onto the end face of the container neck by pulling sideways as with any one-piece screw cap.
  • twist lock better enables an important requirement, namely the sealing of the glass container, that the lid is pulled laterally onto the mouth by the screw ring.
  • an important requirement namely the sealing of the glass container, that the lid is pulled laterally onto the mouth by the screw ring.
  • an outwardly circumferential annular bead is formed, which engages in a correspondingly designed circumferential counterpart arranged on the screw ring, and that Has section above and below the bead centering sections.
  • the ring part is designed in such a way that a strong turning is made possible and that an engagement part is arranged at the lower end of the ring part, which is designed as a curl. Since tensile forces are to be transmitted from the screw ring to the cover, it is advantageous to design the engaging part as a closed curl or to reduce the rigidity as an interrupted curl.
  • the engagement form in the screw ring is designed by an angular bead so that the curling is always fixed.
  • the screw ring with a centering for the sheet metal lid and for the container is also provided. Here, too, the insertion takes place from the top of the screw ring.
  • the ring part consists of a vertical section and an engagement part is arranged at the lower end of the ring part, which as an outwardly offset open step, which consists of a flange for power transmission and an adjoining vertical part , is formed and is arranged in an inwardly open, approximately rectangular cross-section having an annular groove of the screw ring.
  • This shape should be used when the thread from the container begins deeper at the mouth, so that the glass wall can be drawn in, i.e. kept thinner, and the sheet metal cover also becomes smaller (ring channel at the mouth).
  • the protrusion of the step from the thread of the screw ring is less, so that the metal cover can be inserted from the threaded side of the screw ring.
  • the part of the screw ring located above the step is designed as a centering for the sheet metal cover.
  • a rotary lock of the type mentioned is registered, in which a lower closed groove shape is provided as an engaging part for receiving the screw ring after the vertical ring part.
  • This closed step shape is another excellent embodiment of the invention.
  • the screw ring consists only of the threaded part, which is preferably provided with a nut thread, the cover being pushed into the initially still open gripping section and subsequently through the flanging is positively connected.
  • This embodiment enables full printing of the side cover part of the sheet metal cover, and as a result the monochrome screw ring made of plastic is completely covered.
  • a rotary closure 100 which consists of a screw ring 10 and a cover part 20 and with which the mouth of a container neck of a container 50, not shown in the drawing, is closed.
  • the screw ring 10 which is made of a moldable plastic, e.g. made of polypropylene, has in its lower region inwardly directed thread segments 40 which can be engaged in corresponding thread segments 51 on the outside of the container neck in order to enable a screw connection.
  • the cover 20 is made of sheet metal, preferably of deformable aluminum sheet, and has an approximately plate-like shape, which consists of a closure part 25 with an adjoining downwardly open sealing channel 26 in which the sealing ring or sealing compound 30 is arranged the upper end face 50a of the container neck of the container 50 can be placed in a sealing manner.
  • a ring part bent downwards which consists of a section 21a and b, in which a bead 22 is formed which extends outwards and engages in a counterpart 60 designed as an annular groove 11.
  • the cover 120 has a downwardly deformed ring part 121 adjoining the sealing channel 126, at the lower end of which an engagement part 122 is arranged, which consists of a circular cross-section of flanging or curling and into a engages in the screw ring 110 formed annular groove 111.
  • the screw ring 110 is provided with a vertical centering section 116 which is adjoined by an angular bead which is designed as an annular groove with conical inlet flanks.
  • the lid part 120 is pulled onto the container neck via the annular groove 111 and the engaging part 122, so that a secure seal is ensured via the sealing compound 130 even if the container neck is not planar. Since the annular groove 111 and the engaging part 122 have corresponding shapes, a play-free, positive connection 160 of the cover part 120 in the screw ring 110 is ensured.
  • the centering ring 112 which can also consist of ring elements, is arranged below the ring groove 111.
  • the centering ring 112 is dimensioned in its inner or contact surface diameter D2 in such a way that it centers the screw ring 110 and thus the rotary closure 200 on the container neck. This makes it possible, despite the tolerances to be provided for manufacturing reasons, between the screw ring-side and container neck-side thread segments to apply a high screwing or tightening torque without the risk of the thread segments being pushed apart.
  • the sheet metal cover is thus inserted into the screw ring. That the curling can be interrupted and thus can dodge elastically and then snaps into the engaging form.
  • the curling can move as far as the container wall by turning it too hard or unscrewing it, but it remains non-positively connected.
  • the cover part 220 has the same basic elements as described above.
  • the sealing channel 226 is followed by a downwardly bent ring part 221, on which an outwardly displaced step, consisting of a flange 222a, is arranged as the engaging part, and a vertical part 222b is arranged thereon, which engages in an annular groove 211 formed in the screw ring, which forms the form-fitting counterpart 260 of the screw ring 210.
  • the screw ring has a centering section 216 opposite the ring part 121, to which the annular groove 211 and then a holding section 217 adjoins, a thread 218 being cut in the holding section 217 into the corresponding thread segment 51 on the outside of the container neck of the container 50 can be engaged to enable a screw connection.
  • the cover part 320; 320 ⁇ has the same basic elements as those described above.
  • the screw ring 310 is designed as a simple ring insert, in the holding section 311 of which a thread 312 is cut, into which corresponding thread segments 51 on the outside of the container neck of the container 50 can be engaged in order to enable a screw connection.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Closures For Containers (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Mechanical Operated Clutches (AREA)
EP88100596A 1987-01-18 1988-01-18 Capsule à vis pour récipients Expired - Lifetime EP0280024B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88100596T ATE74861T1 (de) 1987-01-18 1988-01-18 Drehverschluss fuer behaelter.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE8700722U DE8700722U1 (de) 1987-01-18 1987-01-18 Drehverschluß für Behälter
DE8700722U 1987-01-18

Publications (2)

Publication Number Publication Date
EP0280024A1 true EP0280024A1 (fr) 1988-08-31
EP0280024B1 EP0280024B1 (fr) 1992-04-15

Family

ID=6803686

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88100596A Expired - Lifetime EP0280024B1 (fr) 1987-01-18 1988-01-18 Capsule à vis pour récipients

Country Status (6)

Country Link
EP (1) EP0280024B1 (fr)
AT (1) ATE74861T1 (fr)
DE (2) DE8700722U1 (fr)
DK (1) DK165585C (fr)
ES (1) ES2030767T3 (fr)
GR (1) GR3004392T3 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0445910A1 (fr) * 1990-03-07 1991-09-11 Continental White Cap, Inc. Dispositif de bouchage composite à bague de garantie
EP0447021A2 (fr) * 1990-03-15 1991-09-18 Continental White Cap, Inc. Dispositif de bouchage composite à bague de garantie
US5103991A (en) * 1990-03-10 1992-04-14 Cmb Foodcan Plc Screw closures for containers
WO2003064276A2 (fr) * 2002-01-31 2003-08-07 Crown Cork & Seal Technologies Corporation Fermeture composite munie d'un element de fixation de disque

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3411651A (en) * 1966-10-31 1968-11-19 Owens Illinois Inc Barrier for closures
DE2334666A1 (de) * 1972-09-05 1974-03-14 Continental Can Co Faelschungssicherer verschluss fuer behaelter
GB2040891A (en) * 1979-01-26 1980-09-03 Baxter Travenol Lab Resealable container
US4227618A (en) * 1979-06-21 1980-10-14 The Continental Group, Inc. Expansion section for tamper-indicating ring of squeeze-off closure
DE2226906B2 (de) * 1971-06-14 1980-12-04 Anchor Hocking Corp., Lancaster, Ohio (V.St.A.) Behälterverschlußkappe
DE3322326A1 (de) * 1983-06-21 1985-01-03 Continental White Cap, Inc., Northbrook, Ill. Drehverschluss fuer behaelter
US4560076A (en) * 1984-04-17 1985-12-24 Continental White Cap, Inc. Tamper indicating band for use in low rise cam-off application

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3411651A (en) * 1966-10-31 1968-11-19 Owens Illinois Inc Barrier for closures
DE2226906B2 (de) * 1971-06-14 1980-12-04 Anchor Hocking Corp., Lancaster, Ohio (V.St.A.) Behälterverschlußkappe
DE2334666A1 (de) * 1972-09-05 1974-03-14 Continental Can Co Faelschungssicherer verschluss fuer behaelter
GB2040891A (en) * 1979-01-26 1980-09-03 Baxter Travenol Lab Resealable container
US4227618A (en) * 1979-06-21 1980-10-14 The Continental Group, Inc. Expansion section for tamper-indicating ring of squeeze-off closure
DE3322326A1 (de) * 1983-06-21 1985-01-03 Continental White Cap, Inc., Northbrook, Ill. Drehverschluss fuer behaelter
US4560076A (en) * 1984-04-17 1985-12-24 Continental White Cap, Inc. Tamper indicating band for use in low rise cam-off application

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0445910A1 (fr) * 1990-03-07 1991-09-11 Continental White Cap, Inc. Dispositif de bouchage composite à bague de garantie
AU631048B2 (en) * 1990-03-07 1992-11-12 Continental White Cap, Inc. Composite cap including tamper indicating feature
US5103991A (en) * 1990-03-10 1992-04-14 Cmb Foodcan Plc Screw closures for containers
EP0447021A2 (fr) * 1990-03-15 1991-09-18 Continental White Cap, Inc. Dispositif de bouchage composite à bague de garantie
EP0447021A3 (en) * 1990-03-15 1991-12-27 Continental White Cap, Inc. Improved composite cap including tamper indicating band
WO2003064276A2 (fr) * 2002-01-31 2003-08-07 Crown Cork & Seal Technologies Corporation Fermeture composite munie d'un element de fixation de disque
WO2003064276A3 (fr) * 2002-01-31 2004-02-05 Crown Cork & Seal Tech Corp Fermeture composite munie d'un element de fixation de disque

Also Published As

Publication number Publication date
DK165585B (da) 1992-12-21
DK19788D0 (da) 1988-01-18
ES2030767T3 (es) 1992-11-16
ATE74861T1 (de) 1992-05-15
EP0280024B1 (fr) 1992-04-15
GR3004392T3 (fr) 1993-03-31
DK19788A (da) 1988-07-19
DE8700722U1 (de) 1987-02-26
DK165585C (da) 1993-05-03
DE3869993D1 (de) 1992-05-21

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