WO2001021491A1 - Tear-off opening for containers and cans - Google Patents
Tear-off opening for containers and cans Download PDFInfo
- Publication number
- WO2001021491A1 WO2001021491A1 PCT/EP2000/008692 EP0008692W WO0121491A1 WO 2001021491 A1 WO2001021491 A1 WO 2001021491A1 EP 0008692 W EP0008692 W EP 0008692W WO 0121491 A1 WO0121491 A1 WO 0121491A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- opening
- tear
- tongue
- cans
- region
- Prior art date
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
- B65D17/00—Rigid or semi-rigid containers specially constructed to be opened by cutting or piercing, or by tearing of frangible members or portions
- B65D17/28—Rigid or semi-rigid containers specially constructed to be opened by cutting or piercing, or by tearing of frangible members or portions at lines or points of weakness
- B65D17/401—Rigid or semi-rigid containers specially constructed to be opened by cutting or piercing, or by tearing of frangible members or portions at lines or points of weakness characterised by having the line of weakness provided in an end wall
- B65D17/4012—Rigid or semi-rigid containers specially constructed to be opened by cutting or piercing, or by tearing of frangible members or portions at lines or points of weakness characterised by having the line of weakness provided in an end wall for opening partially by means of a tearing tab
-
- 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
- B65D2517/00—Containers specially constructed to be opened by cutting, piercing or tearing of wall portions, e.g. preserving cans or tins
- B65D2517/0001—Details
- B65D2517/0098—Means for preventing dust contacting pouring opening, e.g. a cover over the tear panel
Definitions
- Cans and containers with tear openings are known and have a variety of uses.
- tear openings are known which are provided on the top (on the lid) of the can and which provide a tear line which arise from the weakening of the wall thickness and are equipped with a ring lever and basically offer two opening options: 1- by pulling on the ring lever is the one limited by the line of weakness
- the cans especially on the upper opening side with the peripheral edge protruding upwards, offer themselves as a deposit of dust and dirt, which is always present in storage, during transport and during handouts to the end user and thus as a breeding ground for bacteria and parasites work.
- the risk of contamination from external foreign matter, bacteria, mold, etc. is particularly high in the second solution due to the penetration of part of the ring lever into the interior of the can. Nevertheless, this solution has been widely used because it avoids scattering the parts of the tear opening in a separate state from the can.
- the drinks contained in the can provided with a tear opening are habitually consumed by placing them directly on the mouth, the hygienic risk is extremely high since this habit greatly encourages contact with the dirt, particularly in the area with the protruding circumferential edge, which is associated with comes into contact with the mouth of the consumer.
- the object of the invention is to create a tear opening for cans and containers which ensures the following: a) integrity of the product contained during the opening, b) removal of the protruding edge on the opening side together with the known problems when emptying the can or when attaching it the mouth of the consumer, c) guarantee of hygiene on the surface which comes into contact with the mouth of the consumer through hermetic sealing which prevents contamination during transport, storage and handling of the cans, d) a sealing system which does not make any significant changes in the Manufacturing process, filling, stacking, storage in the warehouse or on the store shelves required, e) easy reuse of the packaging material without separation according to different materials.
- the invention proposes a double-walled can, the outer wall exposing the underlying, non-soiled and hygienically perfect wall during the opening phase.
- the can according to the invention is closed by a base which is attached after the can has been filled and clamped in a known manner, thereby ensuring the tight closure and the connection of the two casings forming the can.
- the double-walled can is obtained by inserting one sleeve into the other, as the inner sleeve that has the opening for emptying the liquid and as the outer sleeve that which has the tear lines and an inner diameter corresponding to the outer diameter of the inner sleeve.
- a layer of sealing material is provided. This material can be sprayed on the outside of the inner sleeve or on the inside of the outer sleeve or attached by adhesion.
- the invention does not exclude other manufacturing processes, such as, for example, manufacturing the can from a double-walled composite material.
- the outer layer is torn open along the lines of weakness and according to various geometric arrangements, such as according to a spiral, a circular line, a straight line or a composite line.
- the pull tab remains connected to the can so that it is not lost and can therefore be passed on for reuse.
- the tear lines are determined in a known manner on the outer sleeve by material weakening lines.
- Fig. 1 is a perspective view of a can for beverages with a tear opening according to the invention by removing the outer wall of the lid and then removing an arcuate strip of the outer wall of the can.
- FIG. 2 is a perspective view of a can which has a tear opening according to the invention in which the tear ring is provided in an area corresponding to the outflow opening and in which a part of the outer shell corresponding to this area is first torn open and then an elongated strip along the can rupturing.
- FIG. 3 is a sectional view through the can shown in FIG. 1 according to a vertical sectional plane which contains the can axis and runs through the outflow opening thereof.
- Fig. 4 is a perspective view of a can with a tear opening according to the invention with a simple tear tab which is removable in a first phase in the longitudinal direction of the can to expose a strip of the side wall and then to pull off part of the conical edge and the outer wall of the lid to open the opening for the Free the drink.
- FIG. 5 is a perspective view of a can with a tear opening according to the invention with a tear-off tongue that can be pulled off in a spial, the area of the lid with a discharge opening being cleared for the contents in a first phase and then the protruding edge, the conical edge and part of the side wall being exposed ,
- the can (Fig. 1-5) consists of an outer wall 1 and an inner wall 2 which comprises an outer lid portion 1a and an inner lid portion 2a, the latter having an opening 6 for the outlet of the contents.
- the tearing A, B of the tongue 5, 5a, 5b, 5c to expose part of the inner wall 2, 2a of the can can begin or optionally in the area of the opening for the discharge of the contents (FIGS. 1, 2, 5) start at the opposite end (Fig. 4) so that in the final phase the area with the opening 6 is exposed.
- the tongue remains connected to the can in an area where it does not hinder the mouth.
- the tear lines are arranged in such a way that the formation of stiffening areas due to bulging or excessive width of the tongue, which would hinder the flexibility of the tongue during removal, is avoided ,
- the box with double wall 1, 2 can be closed by a simple base 3 in a known manner by means of clips 3a.
- a sealing material is provided which is provided in the region of the protruding peripheral edge 1b of the cover and / or in the peripheral region of the opening 6.
- the two walls 1, 2, and 1a, 2a may have the same or different thickness and are advantageously made of the same material, preferably the thicknesses of the sleeves are calculated so that they together the loads of the pressure of the content and that of transport and Withstand stacking.
- the invention does not rule out providing a double-walled area only on that part of the can which relates to the tear opening and exposure of the surrounding wall. Furthermore, the invention of course also does not exclude the combination between a spiral, straight and / or circular arrangement of the tear lines, on the one hand to achieve complete exposure of the areas for attaching the mouth and on the other hand to maintain the positioning of the tear tongue so that it is complete in the raised position remains connected to the can without obstructing the mouth.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Containers Opened By Tearing Frangible Portions (AREA)
- Control And Other Processes For Unpacking Of Materials (AREA)
- Closures For Containers (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU75157/00A AU7515700A (en) | 1999-09-20 | 2000-09-06 | Tear-off opening for containers and cans |
EP00964127A EP1131250A1 (en) | 1999-09-20 | 2000-09-06 | Tear-off opening for containers and cans |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT1999BZ000041A IT1311566B1 (en) | 1999-09-20 | 1999-09-20 | TEAR OPENING FOR CONTAINERS AND CANS. |
ITBZ99A000041 | 1999-09-20 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2001021491A1 true WO2001021491A1 (en) | 2001-03-29 |
Family
ID=11346929
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2000/008692 WO2001021491A1 (en) | 1999-09-20 | 2000-09-06 | Tear-off opening for containers and cans |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP1131250A1 (en) |
AU (1) | AU7515700A (en) |
IT (1) | IT1311566B1 (en) |
WO (1) | WO2001021491A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102004063280A1 (en) * | 2004-12-29 | 2006-07-13 | BSH Bosch und Siemens Hausgeräte GmbH | Can with easy-to-open lid for food products has a lid in form of pull-ring in central region and intended tear line running out spirally from pull-ring |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3454197A (en) * | 1967-08-10 | 1969-07-08 | Thomas R Thompson | Container having a tearaway pull tab and a flexible bladder in the container attached to the pull tab |
DE7816145U1 (en) * | 1978-05-30 | 1978-09-14 | Mache, Ulrich, 7410 Reutlingen | LURE CAN |
EP0385954A1 (en) * | 1989-02-27 | 1990-09-05 | Ferruccio Canini | Device for hygienic protection of drinks, edible liquids and other products in general |
EP0712787A1 (en) * | 1994-11-15 | 1996-05-22 | Rüdiger Haaga GmbH | Container with dispersing opening which is closed by a cover strip |
FR2759978A1 (en) * | 1997-02-21 | 1998-08-28 | Christophe Sais | METALLIC BOX FOR BEVERAGE OF WHICH THE PART IN CONTACT WITH THE MOUTH AND THE OPENING ARE HYGIENICALLY PROTECTED |
-
1999
- 1999-09-20 IT IT1999BZ000041A patent/IT1311566B1/en active
-
2000
- 2000-09-06 EP EP00964127A patent/EP1131250A1/en not_active Withdrawn
- 2000-09-06 WO PCT/EP2000/008692 patent/WO2001021491A1/en not_active Application Discontinuation
- 2000-09-06 AU AU75157/00A patent/AU7515700A/en not_active Abandoned
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3454197A (en) * | 1967-08-10 | 1969-07-08 | Thomas R Thompson | Container having a tearaway pull tab and a flexible bladder in the container attached to the pull tab |
DE7816145U1 (en) * | 1978-05-30 | 1978-09-14 | Mache, Ulrich, 7410 Reutlingen | LURE CAN |
EP0385954A1 (en) * | 1989-02-27 | 1990-09-05 | Ferruccio Canini | Device for hygienic protection of drinks, edible liquids and other products in general |
EP0712787A1 (en) * | 1994-11-15 | 1996-05-22 | Rüdiger Haaga GmbH | Container with dispersing opening which is closed by a cover strip |
FR2759978A1 (en) * | 1997-02-21 | 1998-08-28 | Christophe Sais | METALLIC BOX FOR BEVERAGE OF WHICH THE PART IN CONTACT WITH THE MOUTH AND THE OPENING ARE HYGIENICALLY PROTECTED |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102004063280A1 (en) * | 2004-12-29 | 2006-07-13 | BSH Bosch und Siemens Hausgeräte GmbH | Can with easy-to-open lid for food products has a lid in form of pull-ring in central region and intended tear line running out spirally from pull-ring |
Also Published As
Publication number | Publication date |
---|---|
AU7515700A (en) | 2001-04-24 |
ITBZ990041A1 (en) | 2001-03-20 |
EP1131250A1 (en) | 2001-09-12 |
IT1311566B1 (en) | 2002-03-13 |
ITBZ990041A0 (en) | 1999-09-20 |
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