EP1951590B1 - Container with cap - Google Patents
Container with cap Download PDFInfo
- Publication number
- EP1951590B1 EP1951590B1 EP06808545A EP06808545A EP1951590B1 EP 1951590 B1 EP1951590 B1 EP 1951590B1 EP 06808545 A EP06808545 A EP 06808545A EP 06808545 A EP06808545 A EP 06808545A EP 1951590 B1 EP1951590 B1 EP 1951590B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- cap
- container body
- lip
- members
- container
- 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.)
- Not-in-force
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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
- 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
-
- 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
- B65D41/16—Snap-on caps or cap-like covers
- B65D41/17—Snap-on caps or cap-like covers push-on and twist-off
-
- 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
- B65D41/16—Snap-on caps or cap-like covers
-
- 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
- B65D41/32—Caps or cap-like covers with lines of weakness, tearing-strips, tags, or like opening or removal devices, e.g. to facilitate formation of pouring openings
- B65D41/34—Threaded or like caps or cap-like covers provided with tamper elements formed in, or attached to, the closure skirt
- B65D41/3442—Threaded or like caps or cap-like covers provided with tamper elements formed in, or attached to, the closure skirt with rigid bead or projections formed on the tamper element and coacting with bead or projections on the container
- B65D41/3447—Threaded or like caps or cap-like covers provided with tamper elements formed in, or attached to, the closure skirt with rigid bead or projections formed on the tamper element and coacting with bead or projections on the container the tamper element being integrally connected to the closure by means of bridges
- B65D41/3452—Threaded or like caps or cap-like covers provided with tamper elements formed in, or attached to, the closure skirt with rigid bead or projections formed on the tamper element and coacting with bead or projections on the container the tamper element being integrally connected to the closure by means of bridges with drive means between closure and tamper element
-
- 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
- B65D41/32—Caps or cap-like covers with lines of weakness, tearing-strips, tags, or like opening or removal devices, e.g. to facilitate formation of pouring openings
- B65D41/46—Snap-on caps or cap-like covers
- B65D41/47—Snap-on caps or cap-like covers push-on and twist-off
-
- 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
- B65D55/00—Accessories for container closures not otherwise provided for
- B65D55/16—Devices preventing loss of removable closure members
-
- 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
- B65D2251/00—Details relating to container closures
- B65D2251/0003—Two or more closures
- B65D2251/0037—Intermediate closure(s)
- B65D2251/0046—Intermediate closure(s) of the 41-type
-
- 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
- B65D2401/00—Tamper-indicating means
- B65D2401/15—Tearable part of the closure
- B65D2401/30—Tamper-ring remaining connected to closure after initial removal
Definitions
- the present invention relates to containers, and particularly to containers for supplying beverages to consumers.
- the invention has particular utility for the storage and supply of carbonated and other sparkling drinks, but is also suitable for use with non-carbonated drinks and other types of beverage or other materials.
- a well known drink container comprises a glass bottle with a crown cap formed of metal.
- the cap is pressed over a lip around the opening of the bottle and held in place by being crimped beneath the lip. Whilst very successful, this form of closure has the disadvantage that it requires a tool, e.g. a bottle opener, to prize the cap off the bottle.
- container comprise a plastic bottle with a plastic screw cap.
- these caps can be Installed by pressing onto the bottle (rather than being screwed on) but their removal requires the cap to be unscrewed, often requiring rotation of the cap through 360 degrees or more.
- This type of closure also requires the provision of thread forms on the exterior of the bottle neck.
- WO82/03058 discloses a plastic closure for fitting to a neck of a container.
- a skirt of the closure comprises radially inwardly projecting circumferentially spaced lugs which are engageable with thread segments on the neck of the container.
- the present invention seeks to provide an alternative to this prior art.
- a container body with an opening defining an axis (A) passing therethrough for receiving a cap for closing the opening, the cap having a plurality of circumferentially spaced apart inwardly projecting members around an inner circumference thereof, the container body having an outwardly projecting lip around the opening, the lip having a plurality of circumferentially spaced apart recesses in a lower part thereof for receiving said members when a cap is press fitted to the container body, an upper surface of the lip being shaped so that, when a cap Is pressed axially onto the container body, the members are driven outwards and the cap is resiliently flexed into a substantially polygonal shape until the members are able to pass over the external diameter of the lip, and snap fit into the recesses in the lip, the recesses being shaped such that subsequent rotation of the cap relative to the container body and, consequential relative circumferential movement of the members within the respective recesses, enables the cap to be tightened against the lip.
- a container comprising a container body with an opening defining an axis (A) passing therethrough and a cap for closing the opening, the cap being formed of resilient material and having a plurality of circumferentially spaced apart inwardly projecting members around an inner circumference thereof, the container body having an outwardly projecting lip around said opening, and the lip having a plurality of circumferentially spaced apart recesses in a lower part thereof for receiving said members when the cap s press fitted to the container body, an upper surface of the lip being shaped so that, when the cap is pressed axially onto the container body, the members are driven outwards and the cap is resiliently flexed into a substantially polygonal shape until the members are able to pass over the external diameter of the lip, and snap fit into the recesses in the lip, the recesses being shaped such that subsequent rotation of the cap relative to the container body and, consequential relative circumferential movement of the members within the respective recesses, tightens
- the invention also relates to a cap for fitting to a container body as described above having an opening defining an axis (A) passing therethrough and an outwardly projecting lip around the opening, the lip having a plurality of circumferentially spaced apart recesses in a lower part thereof, to provide a container as described above, the cap being formed of resilient material and having a plurality of circumferentially spaced apart inwardly projecting members around an inner circumference thereof, each projecting member having a lower surface which is inclined upwardly in a radial direction so that, when the cap is pressed axially onto the container body, the members are driven outwards whereby the cap s resiliently flexed into a substantially polygonal shape, so that the members are able to pass over the external diameter of the lip to snap fit into the recesses in the lip, each projecting member having an upper surface shaped to engage a respective recess so that relative circumferential movement of the members within the respective recesses, upon rotation of the cap relative to the container body,
- One of the alms of the invention is to provide a container which has the aesthetics of a crown cap and the convenience of a screw cap.
- Another aim is to provide a plastics cap which uses less material and hence is lighter than a conventional plastics screw cap.
- the container body 1 has an externally projecting lip 4 around the opening 3.
- a plurality (four in the illustrated embodiment) of spaced apart recesses 5 are provided in a lower part of the lip 4.
- Each of these recesses 5 is defined by an upper surface 5A and two end surfaces 5B and 5C.
- the upper part 4A of the lip 4 has a smooth, curved profile such that its external diameter decreases at position towards an upper surface 4B of the lip 4.
- the cap 2 comprises an upper portion 6 which a substantially circular skirt portion 7 depending therefrom.
- a plurality (four in the illustrated embodiment) of spaced apart inwardly projecting members 8 are provided around the inner circumference of the skirt portion 7. As will be described below, the members 8 engage with respective recesses 5 when the cap 2 is fitted to the container body 1.
- the cap 2 In order to install the cap 2 onto the container body 1, it is pressed onto the lip 4 so that the members 8 engage the upper surface 4B or curved surface 4A thereof. As the cap 2 is pressed downwards, the members 8 slide over the curved surface 4A and are thus driven radially outwards to ride over this surface until they reach the lower part of the lip and snap-fit into the respective recesses 5.
- the cap 2 is distorted into a substantially polygonal shape (a four-sided shape with rounded corners in the illustrated embodiment). This is possible due to the length of the circumferential spaces between adjacent members 8 and the resilient nature of the skirt portion 7.
- the inner surface of the skirt portion 7 in the areas between the members 8 is inclined outwardly towards the open end of the cap 2 so that the diameter of the opening In the cap Increases towards the open end thereof. This also reduces the wall thickness of the skirt portion 7 towards the open end of the cap 2 so increasing the resilient flexibility of the cap in this region. Inclination of the inner surface also helps ensure a snug fit between the inner surface of the skirt portion 7 and the inwardly tapering external surface of the upper part 4A of the lip when the cap 2 has been fitted to the container body 1.
- the spacing between the members 8 helps the skirt portion 7 of the cap to be capable of being flexed into a polygonal shape.
- the length of each member 8 in the circumferential direction is less than the circumferential spacing between adjacent members.
- the cap has an internal diameter of around 28mm
- each member 8 has a circumferential length of around 7-8mm (at their largest dimension) and the circumferential spacing between adjacent members is around 13-14mm.
- the depth of the skirt portion 7 is typically 5-6mm (compared to around 10mm for a conventional 28mm diameter screw cap).
- Each of the members 8 has an upper surface 8A, a lower surface 8B, end surfaces 8C and 8D and an inwardly facing surface 8E.
- the lower surface 8B is inclined upwardly in a radial direction, i.e. it slopes upwardly towards the axis of the cap, so that when the lid is pressed onto the container body the lower surface 8B engages the curved surface 4A of the lip whereby the members 8 are pushed radially outwards as they ride over the surface 4A towards the lower portion of the lip 4.
- the lower surface 8B is substantially horizontal.
- the members 8 are able to ride over the external surface of the lip 4 as the skirt portion is flexed into a substantially polygonal shape until they reach the recesses 5.
- the members 8 then snap-fit into the recesses 5 as the resilience of skirt portion 7 brings it back to a substantially circular shape and the members 8 move radially Inwards beneath the upper surfaces 5A of the recesses 5.
- the upper surface 8A of the members are then in engagement with the upper surfaces 5A of the recesses.
- the upper surface 5A of the recesses is inclined in the circumferential direction so that if the cap 2 is then rotated in a tightening direction (clockwise when viewed from above In the illustrated embodiment) relative to the container body 1, the cap 2 is tightened onto the container body 1. This causes the inner surface of the upper portion 6 of the cap and/or the inner surface of the skirt portion 7 thereof to be brought into sealing engagement with the surfaces 4A and/or 4B of the lip 4.
- the upper surfaces 8A of the members 8B are substantially horizontal in the radial direction but are inclined in the circumferential direction to add to the above tightening.
- the end surfaces 5B of the recesses 5 provide a stop to prevent the cap 2 being over-tightened. Engagement of the end surface 8D of each projection with the end surface 5B of the respective recess prevents further movement of the cap 2 in the tightening direction relative to the container body 1.
- the end surfaces 8D and 5B are both substantially vertical and both extend substantially radially towards the axis A.
- the cap 2 To release the cap 2 it is rotated In the loosening direction (anticlockwise when viewed from above in the illustrated embodiment) relative to the container body. Initially, this moves each member 8 along the respective recesses from the end 5B towards the end 5C. Due to the inclination of the upper surface 5A of the recess and / or of the upper surface 8A of the member 8, this permits the cap to move at least a short distance (e.g. 1-2mm) in the direction of axis A away from the container body 2. This releases the seal between the cap 2 and the container body and permits venting of the container body whereby excess pressure therein (for Instance due to a carbonated beverage) may be released. The cap 2 is, however, still held captive on the container body 1 by the engagement of the members 8 in the recesses 5 so the cap 2 cannot fly off the container body 1 as this pressure is released.
- a short distance e.g. 1-2mm
- each member Upon further rotation of the cap 2 in the loosening direction, the end surface 8C of each member engages the end surface 5C of the respective recess. These surfaces are both substantially vertical but are inclined so that as the cap 2 is rotated, the members 8 ride up the end surfaces 5C whereby the members 8 are driven radially outwards (resulting in the skirt portion 7 again becoming substantially polygonal in shape) until they reach the external surface of the lip 4 in the region 4C between adjacent recesses 5.
- the external surface of the lip 4 is inclined so that the diameter of the lip 4 reduces towards the open end of the container body 1. Due to its resilient nature, the skirt portion 7 of the cap tries to revert to a substantially circular shape so there is a tendency for the members 5 to slide upwards over the external surface of the lip 4 so they can move radially inwards In order for the skirt portion 7 to assume a more circular shape.
- the cap 2 thus tends to ride up the lip 4 so it moves further in the direction of axis A away from the container body 1. This also helps reduce the risk that the members 8 inadvertently slip back (clockwise) to re-engage the recess 5 or slip forwards (anticlockwise) to engage the next recess 5.
- each member 8 thus has a lower surface 8B which is inclined upwardly in a radial direction but is substantially horizontal in a circumferential direction, an upper surface 8A which is substantially horizontal in a radial direction but is inclined in a circumferential direction and two end surfaces 8C, 8D one of which is laterally inclined in a radial direction and both of which are substantially vertical in an axial direction.
- These four surfaces define the perimeter of an inwardly facing surface 8E which, as shown in Figure 3 , is substantially triangular. In use, the surfaces 8E lie adjacent the external surface of the container 1 within the recesses 5.
- Figures 4-8 illustrate a container according to a second embodiment of the invention. This is similar to the container shown in Figures 1-3 but also has a first type of tamper evident feature. Parts of the container of Figures 4-8 which correspond to those of the container of Figures 1-3 are given the same reference numeral but increased by 10.
- the cap 12 is similar to the cap 2 but has a tamper band 10 depending from the skirt portion 17 thereof.
- the tamper band 10 is connected to the skirt portion 17 by a plurality (sixteen in the illustrated example) of small, friable bridges 10A and a plurality (four in the Illustrated example) of tether bands 10B.
- a plurality (four in the illustrated example) of projections 10C project radially inwards from the inner surface of the tamper band 10.
- the skirt portion 17 is flexed into a substantially polygonal shape as the members 18 ride over the lip 14 until they engage recesses 15 as In the first embodiment.
- the projections 10C ride over the lip 14 when the cap 12 is pressed onto the container body 11 and, once the cap 12 has been rotated In the direction D2 shown in Figure 5 , the projections 10C are located beneath lower surfaces 14D of the portions 14C of the lip 14 between the recesses 15.
- the lower surfaces 14D of the lip 14 are inclined in the circumferential direction so that when the cap 12 is rotated in the direction D3 (the loosening direction) as shown in Figure 6 , the projections 10C are driven downwards as illustrated by arrow D4 in Figure 6 . As the remainder of the cap 12 is unable to move downwards (as it is engaged on the upper surface of the lip 14), this causes rupture of the friable bridges 10A (as shown in Figures 6 and 7 ).
- the projections 10C are positioned on the band 10 so that once the members 18 have moved along the recesses 15 to engage the end surfaces 15C thereof and ride up these onto the external surface of lip 14 (flexing the skirt portion 27 into a substantially polygonal shape), the projections 10C have moved along the lower surfaces 14D to the adjacent recess 15.
- the cap 12 is then free to be removed in the direction D5 (with the tamper band 10 connected thereto by the tether bands 10B) as shown in Figures 7 and detached from the container body 11 as shown in Figure 8 .
- Figures 9-13 illustrate a container according to a third embodiment of the invention. This is similar to the container shown in Figures 1-3 but also has a second type of tamper evident feature. Parts of the container of Figures 7-13 which correspond to those of the containers of Figure 1-3 are given the same reference numeral but increased by 20.
- the cap 22 is similar to the cap 2 but has a tamper band 20 depending from the skirt portion 27 thereof.
- the tamper band 20 is connected to the skirt portion 27 by a plurality (about twenty four in the illustrated example) of small, friable bridges 20A and a single tether band 20B.
- a lower portion 20D of the tamper band is folded inwards (as illustrated by arrow B in Figure 10 ) so that the upwardly facing edge 20E thereof projects radially inwards from the inner surface of the tamper band 20 around the entire internal circumference thereof.
- the skirt portion 27 is flexed into a substantially polygonal shape as the members 28 ride over the lip 24 until they engage recesses 25 as in the first embodiment.
- the edge 20E of the tamper band 20 rides over the lip 24 when the cap 22 is pressed onto the container body 21 and is a snap-fit beneath lower surfaces 24D of the lip 24.
- Lower surfaces 24D are shown inclined in the circumferential direction in Figures 9-13 but in this embodiment they could also be horizontal.
- Cap 22 is rotated in the direction D2 shown in Figure 11 to tighten it onto the container 11 as in the first embodiment.
- the members 28 ride up the end surfaces 25C of the recesses 25 (flexing the skirt portion 27 into a substantially polygonal shape) so the upper portion 26 and skirt portion 27 are able to move upwards as in the first embodiment but the tamper band 20 is prevented from doing so by the engagement of the edge 20E of portion 20D under the lower surfaces 24D of the lip 24.
- This causes rupture of the friable bridges 20A although the tamper band 20 remain connected to the remainder of the cap 22 by the tether band 20B.
- the tamper band 20 is then free to slide down the external surface of the container body 21 in the direction D6 shown In Figure 12 whilst the remainder of the cap can be pivoted away from the opening 23 as shown by arrow C.
- a circular ridge 21A is provided around the neck of container body 21 and the tamper band 20 can be pushed down over this so the edge 20E of the upstanding portion 20D passes over the ridge 21A and is then trapped beneath it so that the tamper band is held in this position (as shown in Figure 12 ). This prevents the tamper band sliding back up towards the opening 23 when the container body is tilted to pour a beverage therefrom.
- the tether 20B is, however, of a sufficient length such that the cap 22 can be re-fitted to the container body 21 (as shown in Figure 13 ) by pressing it down again over the lip 24 (and screwed tight if desired).
- Figures 14-19 illustrate a container according to a fourth embodiment of the invention. This is similar to the container shown in Figures 1-3 but also has a third type of tamper evident feature. Parts of the container of Figures 14-19 which correspond to those of the container of Figures 1-3 are given the same reference numeral but increased by 30.
- the container body in this embodiment is suited to being made of glass (although can also be made of plastic).
- the cap 32 is similar to the cap 2 but has a tamper band 30 depending from the skirt portion 37 thereof.
- the tamper band 30 is connected to the skirt portion 37 by a plurality (eight in the illustrated example) of small, friable bridges 30A and a plurality (four in the illustrated example) of tether bands 30B.
- a plurality (eight in the illustrated example) of projections 30C project radially inwards from the inner surface of the tamper band 30.
- the container body 31 is similar to that of the first embodiment but in addition has a plurality (four in the illustrated example) of projections 31A which project radially outward from the exterior wall of the body 31 at a position below and spaced from the outwardly projecting lip 34 (see Figures 14 and 18 ).
- the skirt portion 37 is flexed into a substantially polygonal shape as inwardly projecting members 38 (not shown) ride over the lip 34 until they engage recesses 35 as in the first embodiment.
- the projections 30C ride over the lip 34 when the cap 32 is pressed onto the container body 31 and, once the cap 32 has been rotated in the tightening direction, the projections 30C are located at the level of the projection 31A referred to above.
- the projections 30A on the cap 32 engage the projections 31A on the container body 31 so as to halt rotation of the tamper band 30 relative to the container body 31. Further rotation of the cap 32 in the loosening direction thus causes rupture of the friable bridges 30A as well as moving members 38 (not shown) of the cap 32 out of the recesses 35 in the lip 34 of the container body 31.
- the tether bands 30B are concertinered during this relative rotation as illustrated in Figure 16 .
- the cap 32 is then free to be removed from the container body 31.
- the tamper band 30 remains connected to the cap 32 by the tether bands 30B and Is thus removed along with the cap 32 as shown in Figures 17 and 18 .
- Figures 19-21 illustrate a container according to a fifth embodiment of the invention. This is similar to the container shown in Figures 1-3 but also has a fourth type of tamper evident feature. Parts of the container of Figures 19-21 which correspond to those of the containers of figure 1-3 are given the same reference numeral but Increased by 40.
- the cap 42 is similar to the cap 2 but has a tamper band 40 depending from the skirt portion 47 thereof.
- the tamper band 20 is connected to the skirt portion 27 by a plurality (eight in the illustrated example) of small, friable bridges 40A.
- a plurality (four in the illustrated example) of projections 40C project radially inwards from the inner surface of the tamper band 40.
- the container body 41 is similar to that of the first embodiment but in addition has a plurality (two in the illustrated example) of projections 41A which project radially outward from the exterior wall of the body 41 at positions below and spaced from the outwardly projecting lip 44 (see Figures 19 and 21 ).
- a groove 41B is provided in the container wall for gripping by a blow moulding tool. This groove divides each projection 41A into two parts.
- the skirt portion 47 is flexed into a substantially polygonal shape as Inwardly projecting members 48 (now shown) ride over the lip 44 until they engage recesses 45 as in the first embodiment.
- the projections 40C ride over the lip 44 when the cap 42 is pressed onto the container body 41 and, once the cap 42 has been rotated in the tightening direction, the projections 40C are located at the level of the projections 41A referred to above.
- the projections 40C on the cap 42 engage the projections 41A on the container body 41 so as to halt rotation of the tamper band 40 relative to the container body 41. Further rotation of the cap 42 in the loosening direction thus causes rupture of the friable bridges 40A as well as moving members 48 (not shown) of the cap 42 out of the recesses 45 in the lip 44 of the container body 41. The cap 42 is then free to be removed from the container body 41.
- the tamper band 40 is separated from the cap 42 upon rupture of the friable bridges 40A and drops down the neck of the container 41 as shown in figure 21 to a position at which the external diameter of the container 41 Is similar to the internal diameter of the band 40.
- the band 40 may be lifted off the neck of the container 41 separately from the cap 42.
- the cap may be formed of a plastics material, e.g. by injection moulding.
- the container body may also be formed of a plastics material, e.g. by injection moulding and blow moulding.
- the container body may, however, also be made of glass.
- the diameter of the opening of the container body preferably lies in the range 25-30mm, e.g. as typically used for bottles.
- the invention may also be used on containers with other size openings, including diameters up to 50mm and wide mouth openings (which typically have a diameter in the range 50-80mm).
- the cap is provided with four internally projecting members for engaging four recesses in the lip of the container body.
- Other embodiments may use more or less members and recesses.
- Preferred embodiments have three, four or five members and recesses.
- Four members (and recesses) may, for example, be used for a container opening with a diameter in the range 25-35mm, five for a container with an opening In the range 35-45mm and six for an opening in the range 45-55mm. More members (and recesses) may be used for a given diameter but the greater the number the less flexible the skirt of the cap will be (although, with a large number of members each need project inwards by a smaller distance).
- the container employs two separate camming actions to distort the skirt portion of the cap into a substantially polygonal shape, one when the cap is fitted to the container body and the other when the cap is removed therefrom.
- the inwardly projecting members on the cap are forced radially outwards over the lip as the cap is press-fitted to the container body.
- the members are forced radially outwards by ramps at the ends of recesses in the lip as the cap is rotated relative to the container body.
- Containers having the features described above can thus be press-fitted to a container body and can be opened by a relatively small rotational movement (depending on the number of projecting members used). With four members, the cap need be rotated less than 90 degrees to release it from the container body. In addition, no external threads need be provided on the neck of the container body. The neck may therefore have a smooth aesthetically pleasing appearance, e.g. as on a conventional glass bottle neck.
- the cap which is preferably formed of a plastic material, can thus be press-fitted to the container, the container need not have thread portions on the exterior of the neck and the cap can be removed by a relatively small rotational movement.
- the cap may be arranged so it can be re-fitted by a user.
- the cap thus combines the advantages of a conventional crown closure and a conventional screw-threaded cap and bottle neck. It also uses significantly less material than a conventional plastic screw cap so saves on material cost and wight.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Closures For Containers (AREA)
- Wrappers (AREA)
- Containers Having Bodies Formed In One Piece (AREA)
- Table Devices Or Equipment (AREA)
Abstract
Description
- The present invention relates to containers, and particularly to containers for supplying beverages to consumers. The invention has particular utility for the storage and supply of carbonated and other sparkling drinks, but is also suitable for use with non-carbonated drinks and other types of beverage or other materials.
- A well known drink container comprises a glass bottle with a crown cap formed of metal. The cap is pressed over a lip around the opening of the bottle and held in place by being crimped beneath the lip. Whilst very successful, this form of closure has the disadvantage that it requires a tool, e.g. a bottle opener, to prize the cap off the bottle.
- Other well know forms of container comprise a plastic bottle with a plastic screw cap. In many cases, these caps can be Installed by pressing onto the bottle (rather than being screwed on) but their removal requires the cap to be unscrewed, often requiring rotation of the cap through 360 degrees or more. This type of closure also requires the provision of thread forms on the exterior of the bottle neck.
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WO82/03058 - The present invention seeks to provide an alternative to this prior art.
- According to a first aspect of the invention there is provided a container body with an opening defining an axis (A) passing therethrough for receiving a cap for closing the opening, the cap having a plurality of circumferentially spaced apart inwardly projecting members around an inner circumference thereof, the container body having an outwardly projecting lip around the opening, the lip having a plurality of circumferentially spaced apart recesses in a lower part thereof for receiving said members when a cap is press fitted to the container body, an upper surface of the lip being shaped so that, when a cap Is pressed axially onto the container body, the members are driven outwards and the cap is resiliently flexed into a substantially polygonal shape until the members are able to pass over the external diameter of the lip, and snap fit into the recesses in the lip, the recesses being shaped such that subsequent rotation of the cap relative to the container body and, consequential relative circumferential movement of the members within the respective recesses, enables the cap to be tightened against the lip.
- According to a second aspect of the invention, there is provided a container comprising a container body with an opening defining an axis (A) passing therethrough and a cap for closing the opening, the cap being formed of resilient material and having a plurality of circumferentially spaced apart inwardly projecting members around an inner circumference thereof, the container body having an outwardly projecting lip around said opening, and the lip having a plurality of circumferentially spaced apart recesses in a lower part thereof for receiving said members when the cap s press fitted to the container body, an upper surface of the lip being shaped so that, when the cap is pressed axially onto the container body, the members are driven outwards and the cap is resiliently flexed into a substantially polygonal shape until the members are able to pass over the external diameter of the lip, and snap fit into the recesses in the lip, the recesses being shaped such that subsequent rotation of the cap relative to the container body and, consequential relative circumferential movement of the members within the respective recesses, tightens the cap against the lip.
- The invention also relates to a cap for fitting to a container body as described above having an opening defining an axis (A) passing therethrough and an outwardly projecting lip around the opening, the lip having a plurality of circumferentially spaced apart recesses in a lower part thereof, to provide a container as described above, the cap being formed of resilient material and having a plurality of circumferentially spaced apart inwardly projecting members around an inner circumference thereof, each projecting member having a lower surface which is inclined upwardly in a radial direction so that, when the cap is pressed axially onto the container body, the members are driven outwards whereby the cap s resiliently flexed into a substantially polygonal shape, so that the members are able to pass over the external diameter of the lip to snap fit into the recesses in the lip, each projecting member having an upper surface shaped to engage a respective recess so that relative circumferential movement of the members within the respective recesses, upon rotation of the cap relative to the container body, tightens the cap against the lip.
- One of the alms of the invention is to provide a container which has the aesthetics of a crown cap and the convenience of a screw cap.
- Another aim is to provide a plastics cap which uses less material and hence is lighter than a conventional plastics screw cap.
- Preferred or optional features of the invention will be apparent from the following description and from the subsidiary claims of the specification.
- The invention will now be further described, merely by way of example, with reference to the accompanying drawings, in which:
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Figures 1A and 1B show side views of a container according to a first embodiment of the invention with a cap shown fitted to a container body and shown detached from the container body; -
Figure 2 is an enlarged view of part ofFigure 1A ; -
Figure 3 is a perspective view of the container shown inFigure 2 ; -
Figures 4 to 7 show perspective views of a second embodiment of a container according to the present invention: -
Figure 4 shows a cap and container body prior to the cap being fitted thereto; -
Figure 5 Illustrates how the cap is fitted to the container body; -
Figures 6 and7 illustrate how the cap is removed from the container body; and -
Figure 8 shows a cap and container body following removal of the cap from the container body. -
Figures 9-13 show perspective views of a third embodiment of a container according to the present invention: -
Figure 9 shows a cap and container body prior to the cap being fitted thereto; -
Figure 10 shows an underside view of the cap; -
Figure 11 Illustrates how the cap Is fitted to the container body; -
Figure 12 illustrates how the cap is opened; -
Figure 13 illustrates how the cap may be re-fltted to the container body; -
Figures 14-18 show perspective views of a fourth embodiment of a container according to the present invention; -
Figure 14 shows a cap and container body prior to the cap being fitted thereof; -
Figure 15 shows the cap when fitted to the container body; -
Figure 16 shows the cap at a first stage of removal from the container body; -
Figure 17 shows the cap at a second stage of removal from the container body; - and
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Figure 18 shows the cap following removal from the container body. -
Figures 19-21 show perspective views of a fifth embodiment of a container according to the present Invention; -
Figure 19 shows a cap and container body prior to the cap being fitted thereof; -
Figure 20 shows the cap when fitted to the container body; and -
Figure 21 shows the cap following removal from the container body. -
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Figures 1A and 1B show a container in the form of a bottle comprising acontainer body 1 and acap 2 for closing anopening 3 at the upper end of the container body. The opening may, typically, have a diameter of around 28mm. -
Figure 2 shows an enlarged view of the neck portion of thecontainer body 1 and of theclosure cap 2 for fitting to thecontainer body 1. Theopening 3 at the upper end of the container body defines an axis A passing therethrough. - The
container body 1 has an externally projectinglip 4 around the opening 3. A plurality (four in the illustrated embodiment) of spaced apartrecesses 5 are provided in a lower part of thelip 4. Each of theserecesses 5 is defined by anupper surface 5A and twoend surfaces upper part 4A of thelip 4 has a smooth, curved profile such that its external diameter decreases at position towards anupper surface 4B of thelip 4. - The
cap 2 comprises an upper portion 6 which a substantiallycircular skirt portion 7 depending therefrom. A plurality (four in the illustrated embodiment) of spaced apart inwardly projecting members 8 (seeFigure 3 ) are provided around the inner circumference of theskirt portion 7. As will be described below, themembers 8 engage withrespective recesses 5 when thecap 2 is fitted to thecontainer body 1. - In order to install the
cap 2 onto thecontainer body 1, it is pressed onto thelip 4 so that themembers 8 engage theupper surface 4B orcurved surface 4A thereof. As thecap 2 is pressed downwards, themembers 8 slide over thecurved surface 4A and are thus driven radially outwards to ride over this surface until they reach the lower part of the lip and snap-fit into therespective recesses 5. - As the
members 8 are forced radially outwards, thecap 2 is distorted into a substantially polygonal shape (a four-sided shape with rounded corners in the illustrated embodiment). This is possible due to the length of the circumferential spaces betweenadjacent members 8 and the resilient nature of theskirt portion 7. The inner surface of theskirt portion 7 in the areas between themembers 8 is inclined outwardly towards the open end of thecap 2 so that the diameter of the opening In the cap Increases towards the open end thereof. This also reduces the wall thickness of theskirt portion 7 towards the open end of thecap 2 so increasing the resilient flexibility of the cap in this region. Inclination of the inner surface also helps ensure a snug fit between the inner surface of theskirt portion 7 and the inwardly tapering external surface of theupper part 4A of the lip when thecap 2 has been fitted to thecontainer body 1. - As Indicated, the spacing between the
members 8 helps theskirt portion 7 of the cap to be capable of being flexed into a polygonal shape. Preferably, the length of eachmember 8 in the circumferential direction is less than the circumferential spacing between adjacent members. In the embodiment illustrated, the cap has an internal diameter of around 28mm, eachmember 8 has a circumferential length of around 7-8mm (at their largest dimension) and the circumferential spacing between adjacent members is around 13-14mm. The depth of the skirt portion 7 (from the upper portion 6 to the open end of the cap) is typically 5-6mm (compared to around 10mm for a conventional 28mm diameter screw cap). - Each of the
members 8 has anupper surface 8A, alower surface 8B, end surfaces 8C and 8D and an inwardly facingsurface 8E. Thelower surface 8B is inclined upwardly in a radial direction, i.e. it slopes upwardly towards the axis of the cap, so that when the lid is pressed onto the container body thelower surface 8B engages thecurved surface 4A of the lip whereby themembers 8 are pushed radially outwards as they ride over thesurface 4A towards the lower portion of thelip 4. In the circumferential direction, thelower surface 8B is substantially horizontal. - As the
cap 2 is pushed onto thecontainer body 1, themembers 8 are able to ride over the external surface of thelip 4 as the skirt portion is flexed into a substantially polygonal shape until they reach therecesses 5. Themembers 8 then snap-fit into therecesses 5 as the resilience ofskirt portion 7 brings it back to a substantially circular shape and themembers 8 move radially Inwards beneath theupper surfaces 5A of therecesses 5. - The
upper surface 8A of the members are then in engagement with theupper surfaces 5A of the recesses. As shown InFigures 2 and3 , theupper surface 5A of the recesses is inclined in the circumferential direction so that if thecap 2 is then rotated in a tightening direction (clockwise when viewed from above In the illustrated embodiment) relative to thecontainer body 1, thecap 2 is tightened onto thecontainer body 1. This causes the inner surface of the upper portion 6 of the cap and/or the inner surface of theskirt portion 7 thereof to be brought into sealing engagement with thesurfaces 4A and/or 4B of thelip 4. - The
upper surfaces 8A of themembers 8B are substantially horizontal in the radial direction but are inclined in the circumferential direction to add to the above tightening. - The end surfaces 5B of the
recesses 5 provide a stop to prevent thecap 2 being over-tightened. Engagement of the end surface 8D of each projection with theend surface 5B of the respective recess prevents further movement of thecap 2 in the tightening direction relative to thecontainer body 1. The end surfaces 8D and 5B are both substantially vertical and both extend substantially radially towards the axis A. - To release the
cap 2 it is rotated In the loosening direction (anticlockwise when viewed from above in the illustrated embodiment) relative to the container body. Initially, this moves eachmember 8 along the respective recesses from theend 5B towards theend 5C. Due to the inclination of theupper surface 5A of the recess and / or of theupper surface 8A of themember 8, this permits the cap to move at least a short distance (e.g. 1-2mm) in the direction of axis A away from thecontainer body 2. This releases the seal between thecap 2 and the container body and permits venting of the container body whereby excess pressure therein (for Instance due to a carbonated beverage) may be released. Thecap 2 is, however, still held captive on thecontainer body 1 by the engagement of themembers 8 in therecesses 5 so thecap 2 cannot fly off thecontainer body 1 as this pressure is released. - Upon further rotation of the
cap 2 in the loosening direction, theend surface 8C of each member engages theend surface 5C of the respective recess. These surfaces are both substantially vertical but are inclined so that as thecap 2 is rotated, themembers 8 ride up the end surfaces 5C whereby themembers 8 are driven radially outwards (resulting in theskirt portion 7 again becoming substantially polygonal in shape) until they reach the external surface of thelip 4 in theregion 4C betweenadjacent recesses 5. - As mentioned above, the external surface of the
lip 4 is inclined so that the diameter of thelip 4 reduces towards the open end of thecontainer body 1. Due to its resilient nature, theskirt portion 7 of the cap tries to revert to a substantially circular shape so there is a tendency for themembers 5 to slide upwards over the external surface of thelip 4 so they can move radially inwards In order for theskirt portion 7 to assume a more circular shape. Thecap 2 thus tends to ride up thelip 4 so it moves further in the direction of axis A away from thecontainer body 1. This also helps reduce the risk that themembers 8 inadvertently slip back (clockwise) to re-engage therecess 5 or slip forwards (anticlockwise) to engage thenext recess 5. - If it is desired to re-fit the
cap 2 to thecontainer body 1, this can be done by pressing it back over the lip 4 (by means of a downward force along the axis A) and clockwise rotation (if it is desired to tighten it onto the lip). - From the above description, it will be appreciated that each
member 8 thus has alower surface 8B which is inclined upwardly in a radial direction but is substantially horizontal in a circumferential direction, anupper surface 8A which is substantially horizontal in a radial direction but is inclined in a circumferential direction and twoend surfaces 8C, 8D one of which is laterally inclined in a radial direction and both of which are substantially vertical in an axial direction. These four surfaces define the perimeter of an inwardly facingsurface 8E which, as shown inFigure 3 , is substantially triangular. In use, thesurfaces 8E lie adjacent the external surface of thecontainer 1 within therecesses 5. -
Figures 4-8 illustrate a container according to a second embodiment of the invention. This is similar to the container shown inFigures 1-3 but also has a first type of tamper evident feature. Parts of the container ofFigures 4-8 which correspond to those of the container ofFigures 1-3 are given the same reference numeral but increased by 10. - The
cap 12 is similar to thecap 2 but has atamper band 10 depending from theskirt portion 17 thereof. Thetamper band 10 is connected to theskirt portion 17 by a plurality (sixteen in the illustrated example) of small,friable bridges 10A and a plurality (four in the Illustrated example) oftether bands 10B. A plurality (four in the illustrated example) ofprojections 10C project radially inwards from the inner surface of thetamper band 10. - When the
cap 12 is pressed onto thecontainer body 11 in the direction D1 shown inFigure 5 , theskirt portion 17 is flexed into a substantially polygonal shape as themembers 18 ride over thelip 14 until they engagerecesses 15 as In the first embodiment. In addition, theprojections 10C ride over thelip 14 when thecap 12 is pressed onto thecontainer body 11 and, once thecap 12 has been rotated In the direction D2 shown inFigure 5 , theprojections 10C are located beneathlower surfaces 14D of theportions 14C of thelip 14 between therecesses 15. - The lower surfaces 14D of the
lip 14 are inclined in the circumferential direction so that when thecap 12 is rotated in the direction D3 (the loosening direction) as shown inFigure 6 , theprojections 10C are driven downwards as illustrated by arrow D4 inFigure 6 . As the remainder of thecap 12 is unable to move downwards (as it is engaged on the upper surface of the lip 14), this causes rupture of thefriable bridges 10A (as shown inFigures 6 and7 ). - The
projections 10C are positioned on theband 10 so that once themembers 18 have moved along therecesses 15 to engage the end surfaces 15C thereof and ride up these onto the external surface of lip 14 (flexing theskirt portion 27 into a substantially polygonal shape), theprojections 10C have moved along thelower surfaces 14D to theadjacent recess 15. Thecap 12 is then free to be removed in the direction D5 (with thetamper band 10 connected thereto by thetether bands 10B) as shown inFigures 7 and detached from thecontainer body 11 as shown inFigure 8 . -
Figures 9-13 illustrate a container according to a third embodiment of the invention. This is similar to the container shown inFigures 1-3 but also has a second type of tamper evident feature. Parts of the container ofFigures 7-13 which correspond to those of the containers ofFigure 1-3 are given the same reference numeral but increased by 20. - The
cap 22 is similar to thecap 2 but has atamper band 20 depending from theskirt portion 27 thereof. Thetamper band 20 is connected to theskirt portion 27 by a plurality (about twenty four in the illustrated example) of small,friable bridges 20A and asingle tether band 20B. Alower portion 20D of the tamper band is folded inwards (as illustrated by arrow B inFigure 10 ) so that the upwardly facingedge 20E thereof projects radially inwards from the inner surface of thetamper band 20 around the entire internal circumference thereof. - When the
cap 22 is pressed onto thecontainer body 21 in the direction D1 shown inFigure 11 , theskirt portion 27 is flexed into a substantially polygonal shape as themembers 28 ride over thelip 24 until they engagerecesses 25 as in the first embodiment. In addition, theedge 20E of thetamper band 20 rides over thelip 24 when thecap 22 is pressed onto thecontainer body 21 and is a snap-fit beneathlower surfaces 24D of thelip 24.Lower surfaces 24D are shown inclined in the circumferential direction inFigures 9-13 but in this embodiment they could also be horizontal.Cap 22 is rotated in the direction D2 shown inFigure 11 to tighten it onto thecontainer 11 as in the first embodiment. - When the
cap 22 is rotated in the loosening direction, themembers 28 ride up the end surfaces 25C of the recesses 25 (flexing theskirt portion 27 into a substantially polygonal shape) so theupper portion 26 andskirt portion 27 are able to move upwards as in the first embodiment but thetamper band 20 is prevented from doing so by the engagement of theedge 20E ofportion 20D under thelower surfaces 24D of thelip 24. This causes rupture of thefriable bridges 20A although thetamper band 20 remain connected to the remainder of thecap 22 by thetether band 20B. Thetamper band 20 is then free to slide down the external surface of thecontainer body 21 in the direction D6 shown InFigure 12 whilst the remainder of the cap can be pivoted away from theopening 23 as shown by arrow C. - A
circular ridge 21A is provided around the neck ofcontainer body 21 and thetamper band 20 can be pushed down over this so theedge 20E of theupstanding portion 20D passes over theridge 21A and is then trapped beneath it so that the tamper band is held in this position (as shown inFigure 12 ). This prevents the tamper band sliding back up towards the opening 23 when the container body is tilted to pour a beverage therefrom. Thetether 20B is, however, of a sufficient length such that thecap 22 can be re-fitted to the container body 21 (as shown inFigure 13 ) by pressing it down again over the lip 24 (and screwed tight if desired). -
Figures 14-19 illustrate a container according to a fourth embodiment of the invention. This is similar to the container shown inFigures 1-3 but also has a third type of tamper evident feature. Parts of the container ofFigures 14-19 which correspond to those of the container ofFigures 1-3 are given the same reference numeral but increased by 30. The container body in this embodiment is suited to being made of glass (although can also be made of plastic). - The
cap 32 is similar to thecap 2 but has atamper band 30 depending from theskirt portion 37 thereof. Thetamper band 30 is connected to theskirt portion 37 by a plurality (eight in the illustrated example) of small,friable bridges 30A and a plurality (four in the illustrated example) oftether bands 30B. A plurality (eight in the illustrated example) ofprojections 30C project radially inwards from the inner surface of thetamper band 30. - The
container body 31 is similar to that of the first embodiment but in addition has a plurality (four in the illustrated example) ofprojections 31A which project radially outward from the exterior wall of thebody 31 at a position below and spaced from the outwardly projecting lip 34 (seeFigures 14 and18 ). - When the
cap 32 is pressed onto thecontainer body 31, theskirt portion 37 is flexed into a substantially polygonal shape as inwardly projecting members 38 (not shown) ride over thelip 34 until they engagerecesses 35 as in the first embodiment. In addition, theprojections 30C ride over thelip 34 when thecap 32 is pressed onto thecontainer body 31 and, once thecap 32 has been rotated in the tightening direction, theprojections 30C are located at the level of theprojection 31A referred to above. - When the
cap 32 is rotated in the loosening direction, theprojections 30A on thecap 32 engage theprojections 31A on thecontainer body 31 so as to halt rotation of thetamper band 30 relative to thecontainer body 31. Further rotation of thecap 32 in the loosening direction thus causes rupture of thefriable bridges 30A as well as moving members 38 (not shown) of thecap 32 out of therecesses 35 in thelip 34 of thecontainer body 31. Thetether bands 30B are concertinered during this relative rotation as illustrated inFigure 16 . Thecap 32 is then free to be removed from thecontainer body 31. Thetamper band 30 remains connected to thecap 32 by thetether bands 30B and Is thus removed along with thecap 32 as shown inFigures 17 and18 . -
Figures 19-21 illustrate a container according to a fifth embodiment of the invention. This is similar to the container shown inFigures 1-3 but also has a fourth type of tamper evident feature. Parts of the container ofFigures 19-21 which correspond to those of the containers offigure 1-3 are given the same reference numeral but Increased by 40. - The
cap 42 is similar to thecap 2 but has atamper band 40 depending from theskirt portion 47 thereof. Thetamper band 20 is connected to theskirt portion 27 by a plurality (eight in the illustrated example) of small,friable bridges 40A. A plurality (four in the illustrated example) ofprojections 40C project radially inwards from the inner surface of thetamper band 40. - The
container body 41 is similar to that of the first embodiment but in addition has a plurality (two in the illustrated example) ofprojections 41A which project radially outward from the exterior wall of thebody 41 at positions below and spaced from the outwardly projecting lip 44 (seeFigures 19 and21 ). In this embodiment, agroove 41B is provided in the container wall for gripping by a blow moulding tool. This groove divides eachprojection 41A into two parts. - When the
cap 42 is pressed on thecontainer body 41, theskirt portion 47 is flexed into a substantially polygonal shape as Inwardly projecting members 48 (now shown) ride over thelip 44 until they engagerecesses 45 as in the first embodiment. In addition, theprojections 40C ride over thelip 44 when thecap 42 is pressed onto thecontainer body 41 and, once thecap 42 has been rotated in the tightening direction, theprojections 40C are located at the level of theprojections 41A referred to above. - When the
cap 42 is rotated in the loosening direction, theprojections 40C on thecap 42 engage theprojections 41A on thecontainer body 41 so as to halt rotation of thetamper band 40 relative to thecontainer body 41. Further rotation of thecap 42 in the loosening direction thus causes rupture of thefriable bridges 40A as well as moving members 48 (not shown) of thecap 42 out of therecesses 45 in thelip 44 of thecontainer body 41. Thecap 42 is then free to be removed from thecontainer body 41. - The
tamper band 40 is separated from thecap 42 upon rupture of thefriable bridges 40A and drops down the neck of thecontainer 41 as shown infigure 21 to a position at which the external diameter of thecontainer 41 Is similar to the internal diameter of theband 40. Alternatively, theband 40 may be lifted off the neck of thecontainer 41 separately from thecap 42. - In each of the embodiments described, the cap may be formed of a plastics material, e.g. by injection moulding. The container body may also be formed of a plastics material, e.g. by injection moulding and blow moulding. The container body may, however, also be made of glass.
- The diameter of the opening of the container body preferably lies in the range 25-30mm, e.g. as typically used for bottles. However, the invention may also be used on containers with other size openings, including diameters up to 50mm and wide mouth openings (which typically have a diameter in the range 50-80mm).
- In the embodiments described, the cap is provided with four internally projecting members for engaging four recesses in the lip of the container body. Other embodiments may use more or less members and recesses. Preferred embodiments have three, four or five members and recesses. Four members (and recesses) may, for example, be used for a container opening with a diameter in the range 25-35mm, five for a container with an opening In the range 35-45mm and six for an opening in the range 45-55mm. More members (and recesses) may be used for a given diameter but the greater the number the less flexible the skirt of the cap will be (although, with a large number of members each need project inwards by a smaller distance).
- It will be appreciated that the container employs two separate camming actions to distort the skirt portion of the cap into a substantially polygonal shape, one when the cap is fitted to the container body and the other when the cap is removed therefrom. In the first case, the inwardly projecting members on the cap are forced radially outwards over the lip as the cap is press-fitted to the container body. In the second case, the members are forced radially outwards by ramps at the ends of recesses in the lip as the cap is rotated relative to the container body.
- Containers having the features described above can thus be press-fitted to a container body and can be opened by a relatively small rotational movement (depending on the number of projecting members used). With four members, the cap need be rotated less than 90 degrees to release it from the container body. In addition, no external threads need be provided on the neck of the container body. The neck may therefore have a smooth aesthetically pleasing appearance, e.g. as on a conventional glass bottle neck.
- The cap, which is preferably formed of a plastic material, can thus be press-fitted to the container, the container need not have thread portions on the exterior of the neck and the cap can be removed by a relatively small rotational movement. Optionally, the cap may be arranged so it can be re-fitted by a user. The cap thus combines the advantages of a conventional crown closure and a conventional screw-threaded cap and bottle neck. It also uses significantly less material than a conventional plastic screw cap so saves on material cost and wight.
Claims (22)
- A container body (1) with an opening (3) defining an axis (A) passing therethrough for receiving a cap (2) for closing the opening (3), the cap having (2) a plurality of circumferentially spaced apart inwardly projecting members (8) around an inner circumference thereof, the container body (1) having an outwardly projecting lip (4) around the opening (3), the lip (4) having a plurality of circumferentially spaced apart recesses (5) in a lower part thereof for receiving said members (8) when a cap (2) is press fitted to the container body (1), an upper surface of the lip (4) being shaped so that, when a cap (2) is pressed axially onto the container body (1), the members (8) are driven outwards and the cap (2) is resiliently flexed into a substantially polygonal shape until the members (8) are able to pass over the external diameter of the lip (4), and snap fit into the recesses (5) in the lip (4), the recesses (5) being shaped such that subsequent rotation of the cap (2) relative to the container body (1) and, consequential relative circumferential movement of the members (8) within the respective recesses, enables the cap (2) to be tightened against the lip (4).
- A container body (1) as claimed in claim 1 in which the recesses (5) are shaped such that, upon rotation of the cap (2) relative to the container body (1) in a loosening direction, the cap (2) is flexed into a substantially polygonal shape as the members (8) are driven out of the respective recesses (5) onto an external surface of the lip (4) until the cap (2) is free to be moved to an open position.
- A container body (1) as claimed in claim 2 in which each of the recesses (5) has an end surface (5C) that forms a ramp along which the respective member (8) is able to slide when the cap (2) is rotated in a loosening direction whereby the member (8) moves out of the recess (5) onto an external surface of the lip (4) so the cap (2) is free to be moved to an open position.
- A container body (1) as claimed in any preceding claim in which each of the recesses (5) has an upper surface (5A) and first and second end surfaces (5B, 5C), the upper surface (5A) being inclined or curved relative to a plane perpendicular to said axis (A) whereby the second end surface (5C) extends further In the axial direction than the first end surface (5B).
- A container body (1) as claimed in claim 4 in which the first end surface (58) forms a stop for limiting rotation of the cap (2) In said tightening direction.
- A container body (1) as claimed In claim 3 and 4 In which the second end surface (5C) forms the ramp along which the respective member (8) Is able to slide when the cap (2) is rotated In a loosening direction.
- A container body (1) as claimed In any preceding claim In which the external diameter of an upper part of the lip (4) decreases towards the open end thereof.
- A container (1) comprising a container body (1) with an opening (3) defining an axis (A) passing therethrough and a cap (2) for closing the opening (3), the cap (2) being formed of resilient material and having a plurality of circumferentially spaced apart Inwardly projecting members (8) around an Inner circumference thereof, the container body (1) having an outwardly projecting Ilp (4) around said opening (3), and the lip (4) having a plurality of circumferentially spaced apart recesses (5) In a lower part thereof for receiving said members (8) when the cap (2) is press fitted to the container body (1), an supper surface of the lip (4) being shaped so that, when the cap (2) Is pressed axially onto the container body (1), the members (8) are driven outwards and the cap (2) Is resiliently flexed into a substantially polygonal shape until the members (8) are able to pass over the external diameter of the lip (4), and snap fit Into the recesses (5) in the lip (4), the recesses (5) being shaped such that subsequent rotation of the cap (2) relative to the container body (1) and, consequential relative circumferential movement of the members (8) within the respective recesses (5), tightens the cap (2) against the lip (4).
- A container as claimed in claim 8 in which the recesses (5) are shaped such that, when the cap (2) is rotated relative to the container body (1) in a loosening direction, the cap (2) is flexed into a substantially polygonal shape as the members (8) are driven out of the respective recesses (5) onto an external surface of the lip (4) until the cap (2) is free to be moved to an open position.
- A container as claimed in claim 9 in which each of the recesses (5) has an end (5C) surface that forms a ramp along which the respective member (8) slides when the cap (2) is rotated In a loosening direction whereby the member (8) moves out of the recess (5) onto an external surface of the lip (4) so the cap (2) is free to be moved to an open position.
- A container as claimed in any of claims 8 to 10 in which rotation of the cap (2) in the loosening direction by means of relative circumferential movement of the projecting members (8) within the respective recesses (5), releases the seal between the cap (2) and the container body (1) and so permits venting of the container.
- A container as claimed in any of claims 8 to 11 in which the cap (2) has four inwardly projecting members (8), whereby the cap (2) needs be rotated less than 90 degrees to release it from the container body (1).
- A container as claimed in any of claims 8 to 12 In which the opening (3) has a diameter in the range 25-30mm.
- A container as claimed in any of claims 8 to 13 in which the container body (1) and the cap (2) are both formed of plastics materials.
- A container as claimed in any of claims 8 to 13 in which the container body (1) is formed of glass and the cap (2) is formed of a plastics material.
- A container as claimed in any of claims 8 to 15 in which, following removal of the cap (2), it can be re-fitted to the container body (1) by pressing it back over the lip (4).
- A container as claimed in any of claims 8 to 16 in which no external threads are provided on the neck of the container body (1).
- A cap (2) for fitting to a container body (1) as claimed in any of claims 1 to 7 having an opening (3) defining an axis (A) passing therethrough and an outwardly projecting lip (4) around the opening (3), the lip (4) having a plurality of circumferentially spaced apart recesses (5) in a lower part thereof, to provide a container as claimed any of claims 8 to 17, the cap (2) being formed of resilient material and having a plurality of circumferentially spaced apart inwardly projecting members (8) around an inner circumference thereof, each projecting member (8) having a lower surface (8B) which Is inclined upwardly in a radial direction so that, when the cap (2) is pressed axially onto the container body (1), the members (8) are driven outwards whereby the cap (2) is resiliently flexed into a substantially polygonal shape, so that the members (8) are able to pass over the external diameter of the lip (4) to snap fit into the recesses (5) in the lip (4), each projecting member (8) having an upper surface (8A) shaped to engage a respective recess (5) so that relative circumferential movement of the members (8) within the respective recesses (5), upon rotation of the cap (2) relative to the container body (1), tightens the cap (2) against the lip (4).
- A cap (2) as claimed in claim 18 which each has two end surfaces (8C, 8D) one of which is laterally inclined In a radial direction and both of which are substantially vertical in an axial direction (A).
- A cap (2) as claimed in claim 18 or 19 in which the cap (2) has a tamper band (10) connected to a skirt portion thereof by friable connections (10A).
- A cap (2) as claimed In claim 20 in which the tamper band (10) has one or more projections (10C) on an inner surface thereof (4) such that rotation of the tamper band (10) relative to the container body (1) in the loosening direction causes axial separation of the tamper band (10) and skirt portion (7) resulting In breakage of one or more of the friable connections (10A).
- A cap (2) as claimed in claim 21 in which at least one tether connection (10B) is provided between the tamper band (10) and skirt portion (7) so that the tamper band (10) remains attached to the cap (2) even when all the friable (10A) connections have been broken.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB0523332A GB2432357B (en) | 2005-11-16 | 2005-11-16 | Packaging article |
PCT/GB2006/004255 WO2007057659A1 (en) | 2005-11-16 | 2006-11-16 | Container with cap |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1951590A1 EP1951590A1 (en) | 2008-08-06 |
EP1951590B1 true EP1951590B1 (en) | 2010-12-15 |
Family
ID=35580139
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP06808545A Not-in-force EP1951590B1 (en) | 2005-11-16 | 2006-11-16 | Container with cap |
Country Status (13)
Country | Link |
---|---|
US (1) | US20090139955A1 (en) |
EP (1) | EP1951590B1 (en) |
JP (1) | JP2009515788A (en) |
KR (1) | KR20080080312A (en) |
CN (1) | CN101309837A (en) |
AT (1) | ATE491646T1 (en) |
AU (1) | AU2006314287A1 (en) |
BR (1) | BRPI0618720A2 (en) |
CA (1) | CA2630170A1 (en) |
DE (1) | DE602006018988D1 (en) |
GB (1) | GB2432357B (en) |
RU (1) | RU2008123841A (en) |
WO (1) | WO2007057659A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11485550B2 (en) | 2019-05-13 | 2022-11-01 | Husky Injection Molding Systems Ltd. | Closure device for a container |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB0602382D0 (en) * | 2006-02-07 | 2006-03-15 | Dubois Ltd | Packaging article |
GB2482000A (en) | 2010-07-14 | 2012-01-18 | Threadless Closures Ltd | Closure having Seal and Inner and Outer Components |
AU2011260035B2 (en) | 2010-06-04 | 2016-03-03 | Threadless Closures Limited | Closure for a container |
ITUB20160971A1 (en) * | 2016-02-23 | 2017-08-23 | Sacmi | Closing element for a container. |
CN107826439B (en) * | 2017-11-25 | 2024-03-22 | 珠海市奇润电子有限公司 | Anti-disassembly snack box capable of quickly opening cover |
EP3805082A4 (en) * | 2018-05-25 | 2022-06-29 | Hangzhou Chic Intelligent Technology Co., Ltd | Human-machine interaction body-sensing vehicle |
ES2768032A1 (en) | 2018-12-19 | 2020-06-19 | Betapack S A U | STOPPING DEVICE TO BE FIXED TO THE NECK OF A CONTAINER (Machine-translation by Google Translate, not legally binding) |
CN110498129A (en) * | 2019-07-26 | 2019-11-26 | 杭州康鸿工贸有限公司 | The quick-opening structure of a kind of bottle cap and bottle and straw bottle with quick-opening structure |
DE102019007519A1 (en) * | 2019-10-29 | 2021-04-29 | Gomez Cao Innovations & Inventions, S.L. | A bottle or preform for a bottle and a closure for a bottle |
US11059633B2 (en) | 2019-10-31 | 2021-07-13 | Cheer Pack North America | Flip-top closure for container |
US20210253306A1 (en) * | 2020-02-18 | 2021-08-19 | Closure Systems International Inc. | Closure with wood filler |
WO2021211137A1 (en) | 2020-04-17 | 2021-10-21 | Hewlett-Packard Development Company, L.P. | Printing fluid container with removable cap |
EP3950531A1 (en) * | 2020-08-05 | 2022-02-09 | Capartis AG | Tamper-proof closure and method for opening a tamper-proof closure |
KR102484359B1 (en) * | 2020-09-30 | 2023-01-02 | 김학래 | Liquid container for easy detachable parts |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1591694A (en) * | 1978-02-01 | 1981-06-24 | Metal Box Co Ltd | Containers and closures therefor |
US4257526A (en) * | 1978-08-21 | 1981-03-24 | Coors Container Company | Bottle closure and finish |
US4373641A (en) * | 1981-03-09 | 1983-02-15 | The Continental Group, Inc. | Plastic closure and related container finish |
FR2523550B1 (en) * | 1982-03-16 | 1985-08-09 | Saint Gobain Desjonqueres | QUICK-OPENING CAPPING DEVICE |
US4434903A (en) * | 1982-11-22 | 1984-03-06 | Cooke Carl W | Safety closure and container |
FR2609970B1 (en) * | 1987-01-23 | 1990-02-23 | Moulage Specialise Pack Atel | DEVICE FOR CLOSING A NECK CONTAINER WITH ELASTICALLY DEFORMABLE POSITIONING ELEMENTS |
GB2203729A (en) * | 1987-03-19 | 1988-10-26 | Metal Box Plc | Closure systems for containers |
GB9316834D0 (en) * | 1993-08-13 | 1993-09-29 | Beeson & Sons Ltd | Container closure assembly |
US5527513A (en) * | 1994-04-08 | 1996-06-18 | Becton Dickinson And Company | Collection assembly |
US5725115A (en) * | 1995-02-21 | 1998-03-10 | Crown Cork Ag | Closure cap with tether |
-
2005
- 2005-11-16 GB GB0523332A patent/GB2432357B/en not_active Expired - Fee Related
-
2006
- 2006-11-16 CA CA002630170A patent/CA2630170A1/en not_active Abandoned
- 2006-11-16 BR BRPI0618720-0A patent/BRPI0618720A2/en not_active IP Right Cessation
- 2006-11-16 US US12/093,830 patent/US20090139955A1/en not_active Abandoned
- 2006-11-16 JP JP2008540683A patent/JP2009515788A/en not_active Ceased
- 2006-11-16 DE DE602006018988T patent/DE602006018988D1/en active Active
- 2006-11-16 CN CNA2006800429491A patent/CN101309837A/en active Pending
- 2006-11-16 AT AT06808545T patent/ATE491646T1/en not_active IP Right Cessation
- 2006-11-16 KR KR1020087014559A patent/KR20080080312A/en not_active Application Discontinuation
- 2006-11-16 WO PCT/GB2006/004255 patent/WO2007057659A1/en active Application Filing
- 2006-11-16 RU RU2008123841/12A patent/RU2008123841A/en not_active Application Discontinuation
- 2006-11-16 AU AU2006314287A patent/AU2006314287A1/en not_active Abandoned
- 2006-11-16 EP EP06808545A patent/EP1951590B1/en not_active Not-in-force
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11485550B2 (en) | 2019-05-13 | 2022-11-01 | Husky Injection Molding Systems Ltd. | Closure device for a container |
Also Published As
Publication number | Publication date |
---|---|
EP1951590A1 (en) | 2008-08-06 |
AU2006314287A1 (en) | 2007-05-24 |
US20090139955A1 (en) | 2009-06-04 |
CN101309837A (en) | 2008-11-19 |
DE602006018988D1 (en) | 2011-01-27 |
JP2009515788A (en) | 2009-04-16 |
ATE491646T1 (en) | 2011-01-15 |
BRPI0618720A2 (en) | 2011-09-06 |
RU2008123841A (en) | 2009-12-27 |
KR20080080312A (en) | 2008-09-03 |
GB2432357B (en) | 2010-12-29 |
GB0523332D0 (en) | 2005-12-28 |
GB2432357A (en) | 2007-05-23 |
CA2630170A1 (en) | 2007-05-24 |
WO2007057659A1 (en) | 2007-05-24 |
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