EP3053846A1 - A container with a lid and a securing ring - Google Patents
A container with a lid and a securing ring Download PDFInfo
- Publication number
- EP3053846A1 EP3053846A1 EP15153682.8A EP15153682A EP3053846A1 EP 3053846 A1 EP3053846 A1 EP 3053846A1 EP 15153682 A EP15153682 A EP 15153682A EP 3053846 A1 EP3053846 A1 EP 3053846A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- lid
- securing
- container
- securing ring
- container according
- 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.)
- Withdrawn
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Classifications
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- 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
- B65D45/00—Clamping or other pressure-applying devices for securing or retaining closure members
- B65D45/32—Clamping or other pressure-applying devices for securing or retaining closure members for applying radial or radial and axial pressure, e.g. contractible bands encircling closure member
-
- 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
- B65D43/00—Lids or covers for rigid or semi-rigid containers
- B65D43/02—Removable lids or covers
- B65D43/0202—Removable lids or covers without integral tamper element
- B65D43/0204—Removable lids or covers without integral tamper element secured by snapping over beads or projections
- B65D43/021—Removable lids or covers without integral tamper element secured by snapping over beads or projections only on the inside, or a part turned to the inside, of the mouth
-
- 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
- B65D43/00—Lids or covers for rigid or semi-rigid containers
- B65D43/02—Removable lids or covers
- B65D43/0202—Removable lids or covers without integral tamper element
- B65D43/0214—Removable lids or covers without integral tamper element secured only by friction or gravity
- B65D43/022—Removable lids or covers without integral tamper element secured only by friction or gravity only on the inside, or a part turned to the inside, of the mouth of the container
-
- 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
- B65D45/00—Clamping or other pressure-applying devices for securing or retaining closure members
- B65D45/02—Clamping or other pressure-applying devices for securing or retaining closure members for applying axial pressure to engage closure with sealing surface
- B65D45/30—Annular members, e.g. with snap-over action or screw-threaded
-
- 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
- B65D2543/00—Lids or covers essentially for box-like containers
- B65D2543/00009—Details of lids or covers for rigid or semi-rigid containers
- B65D2543/00018—Overall construction of the lid
- B65D2543/00259—Materials used
- B65D2543/00277—Metal
-
- 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
- B65D2543/00—Lids or covers essentially for box-like containers
- B65D2543/00009—Details of lids or covers for rigid or semi-rigid containers
- B65D2543/00444—Contact between the container and the lid
- B65D2543/00481—Contact between the container and the lid on the inside or the outside of the container
- B65D2543/0049—Contact between the container and the lid on the inside or the outside of the container on the inside, or a part turned to the inside of the mouth of the container
- B65D2543/00509—Cup
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- 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
- B65D2543/00—Lids or covers essentially for box-like containers
- B65D2543/00009—Details of lids or covers for rigid or semi-rigid containers
- B65D2543/00444—Contact between the container and the lid
- B65D2543/00592—Snapping means
- B65D2543/00601—Snapping means on the container
- B65D2543/00611—Profiles
-
- 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
- B65D2543/00—Lids or covers essentially for box-like containers
- B65D2543/00009—Details of lids or covers for rigid or semi-rigid containers
- B65D2543/00444—Contact between the container and the lid
- B65D2543/00592—Snapping means
- B65D2543/00601—Snapping means on the container
- B65D2543/00675—Periphery concerned
- B65D2543/00685—Totality
-
- 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
- B65D2543/00—Lids or covers essentially for box-like containers
- B65D2543/00009—Details of lids or covers for rigid or semi-rigid containers
- B65D2543/00444—Contact between the container and the lid
- B65D2543/00592—Snapping means
- B65D2543/00712—Snapping means on the lid
- B65D2543/00722—Profiles
- B65D2543/00731—Groove or hollow bead
-
- 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
- B65D2543/00—Lids or covers essentially for box-like containers
- B65D2543/00009—Details of lids or covers for rigid or semi-rigid containers
- B65D2543/00444—Contact between the container and the lid
- B65D2543/00592—Snapping means
- B65D2543/00712—Snapping means on the lid
- B65D2543/00787—Periphery concerned
- B65D2543/00796—Totality
-
- 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
- B65D2543/00—Lids or covers essentially for box-like containers
- B65D2543/00009—Details of lids or covers for rigid or semi-rigid containers
- B65D2543/00953—Sealing means
- B65D2543/00962—Sealing means inserted
- B65D2543/00972—Collars or rings
Definitions
- the present invention relates to a container comprising a container body and a lid, said container body having a bottom, a side wall and an opening at a top opposite the bottom, said opening having a closing area with a body-side sealing surface, said lid having a central portion and an outer lid wall portion, said outer lid wall portion being circumferential and surrounding the central portion, said outer lid wall portion providing on an outer side thereof a lid-side sealing surface, said lid-side sealing surface engaging with said body-side sealing surface, when the lid is applied to the opening of the container body to close the container, comprising a supporting portion accommodated within the outer lid wall portion.
- a container of this art is known from WO-A-2013/041226 , which discloses a container with a securing ring completely bridging a trough portion or circumventing U-shaped track of the lid to transfer the force of a possible blow against the upper rim of the container to the central portion of the lid, thereby protecting and stiffening the upper rim of the container including the lid.
- this prior art securing ring comprises a securing portion extending around and engaging the outside of the container body to secure the position of the lid on the container body. For opening the container the securing ring is initially removed.
- Containers of the above art are e.g. used for transport and storage of liquids, such as paint, some of which are classified as dangerous, and accordingly the containers used for transport and storage thereof are subject to certification.
- the containers e.g. has to pass certain tests i.a. drop tests, whereby filled and closed samples of a given container are dropped from a given height at a given angle and whereby the samples must not leak.
- samples are dropped to land obliquely on the top rim from heights e.g. above 1 m whereby due to the inertia of the liquid inside the container an impulse will act on the inside of the lid tending to force the lid off the container body.
- securing a lid on a container body such means including a securing rings extending around and engaging the outside of the container body to secure the position of the lid on the container body, cf. e.g. the above WO-A-2013/041226 , and the provision of resilient beads at the sealing surfaces and an adhesive adhering a bead at one sealing surface to the opposite sealing surface when the lid is applied to the container body, cf. WO-A-92/04248 .
- Some prior art securing means are applicable simultaneously and some are not.
- securing rings are secured to the container by parts of the securing ring reaching over the upper edge of the container for snap engagement.
- Such securing is used by the securing ring disclosed in the above WO-A-2013/041226 though it is also suggested therein that the securing ring is snapped onto a contact surface in the U-shaped track of the lid.
- the object of the present invention is to provide a container with alternative or additional securing means securing the lid on the container body. Especially it is an object to provide a container with an alternative or additional means for securing the securing ring to the container.
- a body-side securing portion diverging in a downwards direction is provided at the body-side sealing surface and a lid-side securing portion diverging in the downwards direction is provided at the lid-side sealing surface, said lid-side securing portion engaging with said body-side securing portion, when the lid is applied to the opening of the container body to close the container, said supporting portion having an outer portion comprising a third securing portion, and said third securing portion being arranged for engagement with an inner surface of the outer lid wall portion, at least spotwise distributed, along the inner circumference of said inner surface.
- the securing ring In case of an impact against the top rim of the container, as mentioned, will stay mainly in its position to fulfil with greater certainty its function.
- Body-side securing portions diverging in a downwards direction and lid-side securing portions diverging in the downwards direction for securing the lid in a closed position on the container body are known in a number of embodiments e.g. provided by inwardly or outwardly protruding bulges or beads, transitions between areas of different diameters, transitions between components etc., cf. DE-A-33 39 777 , WO-A-92/04248 , WO-A-96/32335 , WO-A-98/35882 , WO-A-2006/032539 , WO-A-2013/041226 , et al.
- the present invention is not limited to special embodiments of said securing portions, if such are present.
- said supporting portion is extending at least at a vicinity of a level of the lid-side securing portion.
- said third securing portion is arranged for engagement with an inner surface of the outer lid wall portion at the level of the lid-side securing portion and/or immediately adjacent the level of the lid-side securing portion.
- an enhancement of the surface pressure of the engagement between the lid-side securing portion and the body-side securing portion may be direct or it may be via the adhesive.
- said engagement of the third securing portion with the inner surface of the outer lid wall portion is continuous along the inner circumference of the inner surface.
- the adhesive is elastic or viscoelastic in a set condition.
- small shifts between the supporting portion and the outer lid wall portion is provided for in case of an impact, whereby the force of the impact may be distributed circumferentially through the supporting portion to enhance the pressure of the supporting portion against the outer lid wall portion at positions away from the point of impact.
- the terms “up” and “down” refers to the container in a normal upright position as standing on its bottom on a horizontal support.
- the terms “in” and “inner” on one hand and “out” and “outer” on the other hand refer to directions towards and away from a central vertical axis of the container, respectively, said vertical axis being vertical when the container is in a normal upright position such as standing on its bottom on a horizontal support.
- Either of the container body and the lid may be made, at least primarily, of sheet metal, such as sheet steel.
- the parts of the container body providing the body-side sealing surface and the body-side securing portion and/or the parts of the lid providing the lid-side sealing surface and the lid-side securing portion may be made of sheet metal, such as sheet steel.
- the first and second sealing surface may be annular and have vertical extends. Especially the first and second sealing surface may be substantially vertical.
- the material of the securing ring is in an embodiment a plastics material such as polypropylene.
- the supporting portion of the securing ring extends substantially to a horizontal wall portion adjacent the outer lid wall portion and said adhesive is positioned in the vicinity of the horizontal wall portion.
- the inner surface of the outer lid wall portion has a downward diverging portion opposite the lid-side securing portion, and the outer portion of the supporting portion comprises at least one bead projecting outwardly to be in engagement with the downward diverging portion of said inner side, preferably the third securing portion comprises said at least one bead.
- the outer portion of the supporting portion comprises at least one bead projecting outwardly to be in engagement with the downward diverging portion of said inner side, preferably the third securing portion comprises said at least one bead.
- a rim portion and an annular ledge is provided at an upper end of the outer lid wall portion, and the securing ring comprises an upper flange portion extending from the supporting portion above the annular ledge at an acute angle of less than 80° from vertical.
- the upper flange portion may act as a cushion absorbing a part of the energy from the impact, if the container falls upside-down. Further an impact against the upper flange portion will tend to drive the securing ring, at the circumferential area of impact and accordingly the lid, deeper down into its seat in the container body.
- the upper flange portion is conical upwardly diverging and has a lower inner side connected integrally with the supporting portion and a free upper outer side.
- the acute angle is less than 70°, and in a further embodiment the acute angle is in the range 35° to 55°.
- the securing ring is further secured at the outer lid wall portion by engagement between the third securing portion and the inner surface of the outer lid wall portion.
- the supporting portion of the securing ring fits within the outer lid wall portion with a tight fit.
- a circumferential trough portion comprising an inner trough wall, a trough bottom and said outer lid wall portion is surrounding the central portion of the lid.
- the supporting portion of the securing ring fits around the inner trough wall with a loose fit.
- the securing ring is recessed.
- the security ring may be provided as a body with relatively small wall thickness which facilitates production of the security ring by injection moulding.
- the adhesive is a hot-melt adhesive.
- the securing ring is cast in situ in the trough portion. This provides for manufacture of a securing ring substantially filling the trough portion after setting.
- the closing area is unilateral.
- a unilateral closing area a closing are should be understood, in which a single, preferably substantially vertical, body-side sealing surface is in contact with a single lid-side sealing surface.
- a unilateral closing area should be understood as opposed to a bilateral closing area in which a closing area of the container body is provided by a U-shaped groove structure and the closing area of the lid is a likewise U-shaped groove structure, whereby the U-shaped groove structure of the lid is inserted into the U-shaped groove structure of the container body, when the lid is applied to the container body, whereby two vertical sealing surfaces of the lid, separated by the bottom of the U-shaped structure, engages with corresponding two vertical sealing surfaces of the container body.
- Such bilateral closing areas are e.g. known from WO 2011/041826 A1 , US 7 617 946 B2 and US 4 728 003 .
- the securing ring is a permanent securing ring.
- permanent securing ring a securing ring should be understood that may remain seated on the lid when the container is opened by the lid being removed.
- Figs. 1 to 3 show a container 1 with a container body 3 and a lid 5.
- the container body 3 has a side wall 7, a bottom 9 and an opening at the top 11 opposite the bottom 9. Further the container body 3 is provided with a handle 13.
- the container is in Figs. 1 to 3 shown in an upright position and terms like “up” and “down”, etc. as used herein refer to the container in that position unless otherwise is specifically indicated.
- the container body 3 has at its opening a closing area with a body-side sealing surface 15 and a body-side securing portion 17, the latter diverging in the downwards direction.
- the closing area is provided by a ring 19 assembled with the material of the side wall 7 by means of a joint 21.
- the body-side securing portion 17 is provided by a bend 23 of the material of the ring 19 at a transition 25 between the ring 19 and the side wall 7.
- the closing area might be provided by folding the material of the side wall 7 at the top as it is known in the art.
- the lid 5 has a central portion 27 surrounded by an outer lid wall portion 29.
- a rim portion 31 is provided by a more or less tightly rolled edge and an annular ledge 33 with an upturned surface portion 35 is provided by the material of the lid 5 being bend at the upper end of the outer lid wall portion 29.
- the outer lid wall portion 29 has an outer side 37, a part of which provides a lid-side sealing surface 39, and an inner surface 41.
- the outer lid wall portion 29 is provided with a bead 42 which in the embodiment shown is projection outwardly i.e. away from central portion 27 of the lid and thus away from a central vertical axis of the container (not shown).
- the bead 42 provides a lid-side securing portion 43 diverging in the downwards direction.
- a horizontal wall portion 45 is provided.
- the lid 5 comprises a circumferential trough portion 47 surrounding the central portion 27, said circumferential trough portion 47 being provided by the outer lid wall portion 29, an inner trough wall 49 and a trough bottom 51, the latter thus providing in the present embodiment the horizontal wall portion 45.
- the body-side sealing surface 15 and the lid-side sealing surface 39 are both annular and extend substantially vertically in the present embodiment.
- the bead 42 When the lid 5 is applied to the container body 3 to close the opening of the latter the bead 42 will slide over the body-side sealing surface 15 facilitated by elastic deformation of the material as it is well known in the art and the bead 42 will rest in the small hollow provided by the transition 25 between the ring 19 and the side wall 7, the lid-side securing portion 43 engaging with the body-side securing portion 17 to secure the position of the lid 5, and the lid-side sealing surface 39 will engage with the body-side sealing surface 15 in a sealing manner as it is well known per se in the art and as shown in Fig. 2 .
- the container body 3 and the lid 5 are both made of steel sheet.
- the inner surface 41 of the outer lid wall portion 29 has a depression 54 opposite the bead 42.
- a securing ring 55 is applied to the lid 5 as shown in Fig. 4 .
- the securing ring 55 comprises a supporting portion or lower portion 57 and in this first embodiment also an upper flange portion 59.
- the lower portion 57 is accommodated within the outer lid wall portion 29 and the upper flange portion 59 extends above the annular ledge 33 at an acute angle ⁇ (from vertical) which in the embodiment shown is approximately 45°.
- the lower portion 57 has an outer portion 61 comprising a third securing portion 63 (third to the body-side and lid-side securing portions that is).
- the third securing portion 63 engages the inner surface 41 of the outer lid wall portion 29 at the level of the lid-side securing portion 43 i.e. an area of said surface directly opposite the lid-side securing portion and immediately adjacent above.
- the securing ring 55 is secured to the lid 5 by an adhesive 64, which in the present embodiment is placed at the transition between the trough bottom 51 and the outer lid wall portion 29.
- the adhesive 64 is in the embodiment shown an adhesive maintaining elastic or viscoelastic properties when set, such as a pressure sensitive hot-melt in the form of a synthetic rubber. Using a hot-melt facilitates manufacture.
- the adhesive may e.g. be applied as a continuous string or it may e.g. be applied as circumferentially spaced dots.
- the applied adhesive may be applied with an excess thickness to be flattened by the securing ring 55 when the latter is subsequently inserted to be seated in the circumferential trough portion as shown in Fig. 4 .
- the third securing portion 63 comprises a second bead 65 projecting from the outer portion 61.
- the second bead 65 rests in the depression 54 and thereby assists securing the securing ring 55 to the lid 5.
- the lid 5 comprises a circumferential trough portion 43 the lower portion 57 is accommodated within said trough portion 43 and in the embodiment shown the lower portion 57 fits around the inner trough wall 49 with a loose fit.
- the securing ring 55 comprises an annular concave portion 67 situated at a lower inner side 69 of the upper flange portion 59, at which lower inner side 69 the upper flange portion 59 is integral with the lower portion 57. Opposite the lower inner side 69 the upper flange portion 59 has a free upper outer side 71.
- the container 1 is filled with an amount of a substance, e.g. a liquid such as paint or another chemical, and the lid 5 fitted onto the container body 3 in accordance with normal procedure to close the container.
- a substance e.g. a liquid such as paint or another chemical
- the securing ring 55 is applied to the lid 5 either before or after the lid 5 is applied to the container body 3.
- the force F has a vertical component F v and a horizontal component F h .
- the vertical component F v will tend to press the securing ring 55 downwards and by virtue of the engagement between the securing ring 55 and the trough bottom 51, either directly or through the adhesive 64, the lid will be pressed downwards at the circumferential point of impact 73 to enhance the securing of the seat of the lid 5 in the container body 3 at the circumferential point of impact.
- the horizontal component will tend to press, at the circumferential point of impact 73, the securing ring 55 towards the centre of the lid, see Fig. 5 .
- the horizontal component F h of the force F will be directed circumferentially through the securing ring 55 as indicated by arrows F c and consequently the securing ring 55 will along its circumference, apart from at the circumferential point of impact 73 exert a radial outwards force F r against the inner side 41 of the outer lid wall portion 29.
- This radial force F r will further enhance the pressure of the lid-side securing portion 43 against the body-side securing portion 17 along the other portions of the circumference than at the circumferential point of impact thus providing enhanced securing of the lid 5 in its seat in the container body 3 along the circumference apart from the circumferential point of impact.
- the top edge of the container may be deformed, a part of the this top edge including the circumferential trough portion 47 and the respective sealing surfaces 15 and 39 in the vicinity of the circumferential point of impact 73 being bend out of the general plane of the top 11 of the container.
- the upwards force F l on the inner side of the lid 5 may dome the central portion 27 of the lid upwards, whereby the inner trough wall 49 will be pulled towards the centre of the container, especially at a bending point of the top edge, consequently pulling the trough bottom 51 and the lower part of the outer lid wall portion 29 towards the centre of the container.
- the upper flange portion will per se provide a cushioning effect that enhances the height from which the container may be dropped without leaking as a result of the impact.
- the securing ring 55 should have a sufficient strength and rigidity to provide the effects and function described above.
- a suitable material for the securing ring 55 is polypropylene, but other materials providing a suitable rigidity and strength may be used.
- an acute angle ⁇ of approximately 45° is used in the embodiment shown different acute angles may be used e.g. up to 80° or 70° from the vertical. Normally the acute angle will be in the range of 35° to 55° from the vertical.
- the geometry of the profile of the securing ring 55, including the acute angle ⁇ should be designed for the upper flange portion 59 to withstand collapsing when the container is dropped from a given maximum height of expected "survival" i.e. a maximum height from which the container is expected to be able to drop without leaking. Withstanding collapse the securing ring 55 will protect an upper rim part of the container body most effectively from direct impact. However even a smaller benefit of the invention may be obtained even in case of the upper flange portion collapsing since the upper flange portion still will absorb part of the energy of the impact.
- Fig. 4 shows the profile of the securing ring 55 of the present example of an embodiment.
- the profile comprises a major annular recess 75, which provides for stacking filled containers as such containers would be stacked without the securing ring 55.
- the annular recess 75 provides space for accommodating a circumferential joint at the bottom of a container stacked on top of the container shown.
- the part of the lower portion 57 below the annular recess 75 has a substantial thickness compared to the parts above of the securing ring 55.
- the securing ring 55 may be recessed e.g. as indicated in Figs. 4 and 6 by providing bores 77 in the part of the lower portion 57 below the annular recess 75 thus reducing the local wall thickness in said part.
- the bores 77 may as indicated in Fig. 4 be provided as through holes, as blind holes, or as a mixture thereof.
- Fig. 6 shows a small sector 79 provided with bores 77 but it should be understood that preferably such bores 77 are distributed evenly along the entire circumference of the securing ring 55.
- the outer portion 63 is void of recesses to provide for the second bead 65 to extend continuously circumferentially along the inner surface 41 of the outer lid wall portion 29.
- the upper flange portion 57 extends at an acute angle ⁇ above the annular ledge 33 it is possible, even without removing the securing ring 55, to open the container 1 in the usual manner by inserting a screw driver-like tool 81 below the rim portion 33 of the lid 5 as indicated in Fig. 4 and lift the lid 5 from the container body 3 using the screw driver-like tool 81 as a lever.
- the insertion of a screw driver-like tool 81 may however be facilitated by recessing the upper flange portion, which thus may be interrupted in sectors of e.g. 2 cm along the periphery of the securing ring 55.
- Fig. 7 shows an embodiment in which, compared to the embodiment shown in Fig. 4 , the second bead 65 of a securing ring 55a is omitted.
- Fig. 7 generally shows the same container as the preceding figures, but with a different variant of the securing ring. Accordingly similar features of the variants have been given similar reference numerals.
- recesses 85 in the supporting portion 57 are elongated in the circumferential direction and are open downwards.
- excess adhesive 64' may penetrate into the recesses 85 when the securing ring 55a is inserted into the circumferential trough portion 47 during manufacture or in case of an impact.
- the securing ring 55a comprises an inner raised annular portion 87 provided for supporting similar containers stacked on top of the container shown.
- the bottom of a container stacked on top is supported by a raised lid portion 89 adjacent the circumferential trough portion 47 a circumferential joint at the bottom of the container stacked on top being accommodated in the circumferential trough portion 47.
- the circumferential joint at the bottom of the container stacked on top will be accommodated in an annular recess 75a.
- the securing ring 55a In order to provide a firm support for containers stacked on top the securing ring 55a this is at its bottom provided with circumferentially spaced knobs or protrusions 91 that penetrate the adhesive to make firm contact with the trough bottom 51.
- securing rings 55 and 55a described so far may be manufactured by injection molding to be subsequently inserted in the circumferential trough portion
- Fig. 8 shows yet a different embodiment.
- a securing ring 55b has been provided by initially inserting a first string of hot-melt adhesive 64a that remains tacky when set and subsequently inserting a second string of hot-melt providing the securing ring 55b proper.
- the second string of hot-melt is e.g. EVA that sets to a firm non-tacky condition.
- the securing ring 55b lacks an upper flange portion and accordingly this embodiment lacks the cushioning effect of such flange portion.
- this embodiment still provides for the effect of distributing a horizontal component F h of the force of an impact against the joint 21 or rim portion 31 of the container, only in this case the force is distributed from the material of the container, eventually the outer lid wall portion 29 to the securing ring 55b.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Closures For Containers (AREA)
Abstract
A container comprises a container body (3) and a lid (5), which has an outer lid wall portion (29) surrounding a central portion. The outer lid wall portion (29) provides a lid-side sealing surface (39) and a lid-side securing portion (43), which engage respectively with body-side sealing surface and securing portion, when the lid (5) is applied to the container body (3) to close the container.
The container further comprises a securing ring (55) inserted within the outer lid wall portion (29). The securing ring (55) comprises a support portion (57) and possibly an upper flange portion (59) extending from the support portion (57) at an acute angle (α) of less than 80° from vertical. The securing ring (55) is attached to the lid (5) by an adhesive (64).
Description
- The present invention relates to a container comprising a container body and a lid, said container body having a bottom, a side wall and an opening at a top opposite the bottom, said opening having a closing area with a body-side sealing surface, said lid having a central portion and an outer lid wall portion, said outer lid wall portion being circumferential and surrounding the central portion, said outer lid wall portion providing on an outer side thereof a lid-side sealing surface, said lid-side sealing surface engaging with said body-side sealing surface, when the lid is applied to the opening of the container body to close the container, comprising a supporting portion accommodated within the outer lid wall portion.
- A container of this art is known from
WO-A-2013/041226 , which discloses a container with a securing ring completely bridging a trough portion or circumventing U-shaped track of the lid to transfer the force of a possible blow against the upper rim of the container to the central portion of the lid, thereby protecting and stiffening the upper rim of the container including the lid. Further this prior art securing ring comprises a securing portion extending around and engaging the outside of the container body to secure the position of the lid on the container body. For opening the container the securing ring is initially removed. - Containers of the above art are e.g. used for transport and storage of liquids, such as paint, some of which are classified as dangerous, and accordingly the containers used for transport and storage thereof are subject to certification. To obtain a certificate the containers e.g. has to pass certain tests i.a. drop tests, whereby filled and closed samples of a given container are dropped from a given height at a given angle and whereby the samples must not leak. E.g. samples are dropped to land obliquely on the top rim from heights e.g. above 1 m whereby due to the inertia of the liquid inside the container an impulse will act on the inside of the lid tending to force the lid off the container body.
- Different means are known for securing a lid on a container body, such means including a securing rings extending around and engaging the outside of the container body to secure the position of the lid on the container body, cf. e.g. the above
WO-A-2013/041226 , and the provision of resilient beads at the sealing surfaces and an adhesive adhering a bead at one sealing surface to the opposite sealing surface when the lid is applied to the container body, cf.WO-A-92/04248 - Most known securing rings are secured to the container by parts of the securing ring reaching over the upper edge of the container for snap engagement. Such securing is used by the securing ring disclosed in the above
WO-A-2013/041226 though it is also suggested therein that the securing ring is snapped onto a contact surface in the U-shaped track of the lid. - The object of the present invention is to provide a container with alternative or additional securing means securing the lid on the container body. Especially it is an object to provide a container with an alternative or additional means for securing the securing ring to the container.
- This is obtained in accordance with the invention in that the securing ring is attached to the lid by an adhesive. In an embodiment a body-side securing portion diverging in a downwards direction is provided at the body-side sealing surface and a lid-side securing portion diverging in the downwards direction is provided at the lid-side sealing surface, said lid-side securing portion engaging with said body-side securing portion, when the lid is applied to the opening of the container body to close the container, said supporting portion having an outer portion comprising a third securing portion, and said third securing portion being arranged for engagement with an inner surface of the outer lid wall portion, at least spotwise distributed, along the inner circumference of said inner surface. When a container with a securing ring falls from a high position obliquely on its top rim the resulting impact against the top rim of the container will heavily deform said top rim. An effect of the securing ring is that the supporting portion supports the outer lid wall tending to keep the lid-side sealing surface and/or the lid-side securing portion in contact with the body-side sealing surface and/or the body-side securing portion, respectively. By the present invention it is obtained that the securing ring, in case of an impact against the top rim of the container, as mentioned, will stay mainly in its position to fulfil with greater certainty its function.
- Body-side securing portions diverging in a downwards direction and lid-side securing portions diverging in the downwards direction for securing the lid in a closed position on the container body are known in a number of embodiments e.g. provided by inwardly or outwardly protruding bulges or beads, transitions between areas of different diameters, transitions between components etc., cf.
DE-A-33 39 777 ,WO-A-92/04248 WO-A-96/32335 WO-A-98/35882 WO-A-2006/032539 ,WO-A-2013/041226 , et al. The present invention is not limited to special embodiments of said securing portions, if such are present. - In an embodiment, said supporting portion is extending at least at a vicinity of a level of the lid-side securing portion. Hereby is obtained that the engagement of the lid-side securing portion with the body-side securing portion is more efficiently supported in case of an impact against the top rim of the container.
- In an embodiment said third securing portion is arranged for engagement with an inner surface of the outer lid wall portion at the level of the lid-side securing portion and/or immediately adjacent the level of the lid-side securing portion. Hereby is obtained an enhancement of the surface pressure of the engagement between the lid-side securing portion and the body-side securing portion. The engagement of the third securing portion with said inner surface may be direct or it may be via the adhesive.
- In an embodiment said engagement of the third securing portion with the inner surface of the outer lid wall portion is continuous along the inner circumference of the inner surface.
- In an embodiment the adhesive is elastic or viscoelastic in a set condition. Hereby small shifts between the supporting portion and the outer lid wall portion is provided for in case of an impact, whereby the force of the impact may be distributed circumferentially through the supporting portion to enhance the pressure of the supporting portion against the outer lid wall portion at positions away from the point of impact.
- It should be understood that as used herein in relation to the container the terms "up" and "down" refers to the container in a normal upright position as standing on its bottom on a horizontal support. Further the terms "in" and "inner" on one hand and "out" and "outer" on the other hand refer to directions towards and away from a central vertical axis of the container, respectively, said vertical axis being vertical when the container is in a normal upright position such as standing on its bottom on a horizontal support.
- Either of the container body and the lid may be made, at least primarily, of sheet metal, such as sheet steel. Especially the parts of the container body providing the body-side sealing surface and the body-side securing portion and/or the parts of the lid providing the lid-side sealing surface and the lid-side securing portion may be made of sheet metal, such as sheet steel.
- The first and second sealing surface may be annular and have vertical extends. Especially the first and second sealing surface may be substantially vertical. The material of the securing ring is in an embodiment a plastics material such as polypropylene.
- In an embodiment the supporting portion of the securing ring extends substantially to a horizontal wall portion adjacent the outer lid wall portion and said adhesive is positioned in the vicinity of the horizontal wall portion.
- In an embodiment the inner surface of the outer lid wall portion has a downward diverging portion opposite the lid-side securing portion, and the outer portion of the supporting portion comprises at least one bead projecting outwardly to be in engagement with the downward diverging portion of said inner side, preferably the third securing portion comprises said at least one bead. Such feature provides for an enhancement of the surface pressure between the lid-side securing portion and the body-side securing portion in case of an impact against the upper flange portion.
- In an embodiment a rim portion and an annular ledge is provided at an upper end of the outer lid wall portion, and the securing ring comprises an upper flange portion extending from the supporting portion above the annular ledge at an acute angle of less than 80° from vertical. Hereby is obtained that the upper flange portion may act as a cushion absorbing a part of the energy from the impact, if the container falls upside-down. Further an impact against the upper flange portion will tend to drive the securing ring, at the circumferential area of impact and accordingly the lid, deeper down into its seat in the container body.
- In a practical embodiment the upper flange portion is conical upwardly diverging and has a lower inner side connected integrally with the supporting portion and a free upper outer side. Hereby is obtained that a tool for opening the container may be inserted past the free upper outer side and below the rim portion of the lid while the security ring remain positioned on the lid, and that stacking of containers is not hindered by the upper flange portion.
- In an embodiment the acute angle is less than 70°, and in a further embodiment the acute angle is in the
range 35° to 55°. - In a practical embodiment the securing ring is further secured at the outer lid wall portion by engagement between the third securing portion and the inner surface of the outer lid wall portion.
- In an embodiment the supporting portion of the securing ring fits within the outer lid wall portion with a tight fit. Hereby is obtained that the surface pressure between the lid-side securing portion and the body-side securing portion is enhanced and the effect of the security ring being at the other parts of the circumference outside the area of impact forced harder against the inner side of the outer lid wall portion is supported and enhanced.
- In an embodiment a circumferential trough portion comprising an inner trough wall, a trough bottom and said outer lid wall portion is surrounding the central portion of the lid. In a further embodiment the supporting portion of the securing ring fits around the inner trough wall with a loose fit. Hereby is provided for the security ring to yield, at least slightly, towards the centre of the lid at the area of impact to support and enhance the effect of the security ring being at the other parts of the circumference outside the area of impact forced harder against the inner side of the outer lid wall portion, and the mounting of the security ring is facilitated.
- In an embodiment the securing ring is recessed. Hereby is obtained a reduction of the amount of material used for the production of the security ring thus reducing costs and the security ring may be provided as a body with relatively small wall thickness which facilitates production of the security ring by injection moulding.
- In an embodiment the adhesive is a hot-melt adhesive.
- In an embodiment in which a circumferential trough portion comprising an inner trough wall, a trough bottom and said outer lid wall portion is surrounding the central portion of the lid, the securing ring is cast in situ in the trough portion. This provides for manufacture of a securing ring substantially filling the trough portion after setting.
- In an embodiment the closing area is unilateral. By a unilateral closing area a closing are should be understood, in which a single, preferably substantially vertical, body-side sealing surface is in contact with a single lid-side sealing surface. Especially a unilateral closing area should be understood as opposed to a bilateral closing area in which a closing area of the container body is provided by a U-shaped groove structure and the closing area of the lid is a likewise U-shaped groove structure, whereby the U-shaped groove structure of the lid is inserted into the U-shaped groove structure of the container body, when the lid is applied to the container body, whereby two vertical sealing surfaces of the lid, separated by the bottom of the U-shaped structure, engages with corresponding two vertical sealing surfaces of the container body. Such bilateral closing areas are e.g. known from
WO 2011/041826 A1 ,US 7 617 946 B2 andUS 4 728 003 . - In an embodiment the securing ring is a permanent securing ring. By permanent securing ring a securing ring should be understood that may remain seated on the lid when the container is opened by the lid being removed.
- In the following the invention will be described in further detail having reference to the accompanying schematic drawings showing an example of an embodiment, wherein
-
Fig. 1 is a perspective view of a prior art container comprising a container body and a lid, -
Fig. 2 shows a section along the line II-II inFig. 1 , -
Fig. 3 is a view corresponding toFig. 2 but showing the lid lifted from the container body, -
Fig. 4 shows schematically a securing ring according to the invention applied to the lid ofFigs. 1 to 3 , -
Fig. 5 is a top view of the securing ring, -
Fig. 6 is an enlarged section of the securing ring ofFig. 5 , -
Fig. 7 is a view similar toFig. 4 , but showing a second embodiment of the invention, and -
Fig. 8 is a view similar toFig. 3 , but illustrating a third embodiment of the invention. -
Figs. 1 to 3 show acontainer 1 with acontainer body 3 and alid 5. Thecontainer body 3 has a side wall 7, abottom 9 and an opening at the top 11 opposite thebottom 9. Further thecontainer body 3 is provided with ahandle 13. The container is inFigs. 1 to 3 shown in an upright position and terms like "up" and "down", etc. as used herein refer to the container in that position unless otherwise is specifically indicated. - The
container body 3 has at its opening a closing area with a body-side sealing surface 15 and a body-side securing portion 17, the latter diverging in the downwards direction. - In the embodiment shown the closing area is provided by a
ring 19 assembled with the material of the side wall 7 by means of a joint 21. The body-side securing portion 17 is provided by abend 23 of the material of thering 19 at atransition 25 between thering 19 and the side wall 7. In the alternative the closing area might be provided by folding the material of the side wall 7 at the top as it is known in the art. - In the embodiment shown the
lid 5 has acentral portion 27 surrounded by an outerlid wall portion 29. At an upper end of the outer lid wall portion 29 arim portion 31 is provided by a more or less tightly rolled edge and anannular ledge 33 with anupturned surface portion 35 is provided by the material of thelid 5 being bend at the upper end of the outerlid wall portion 29. - The outer
lid wall portion 29 has anouter side 37, a part of which provides a lid-side sealing surface 39, and aninner surface 41. The outerlid wall portion 29 is provided with abead 42 which in the embodiment shown is projection outwardly i.e. away fromcentral portion 27 of the lid and thus away from a central vertical axis of the container (not shown). Thebead 42 provides a lid-side securing portion 43 diverging in the downwards direction. - At a lower end of the outer lid wall portion 29 a
horizontal wall portion 45 is provided. - In the embodiment shown the
lid 5 comprises acircumferential trough portion 47 surrounding thecentral portion 27, saidcircumferential trough portion 47 being provided by the outerlid wall portion 29, aninner trough wall 49 and a trough bottom 51, the latter thus providing in the present embodiment thehorizontal wall portion 45. - At the closing area of the container and at the rim portion of the
lid sealing beads 53 are provided as disclosed inWO-A-92/04248 - The body-
side sealing surface 15 and the lid-side sealing surface 39 are both annular and extend substantially vertically in the present embodiment. - When the
lid 5 is applied to thecontainer body 3 to close the opening of the latter thebead 42 will slide over the body-side sealing surface 15 facilitated by elastic deformation of the material as it is well known in the art and thebead 42 will rest in the small hollow provided by thetransition 25 between thering 19 and the side wall 7, the lid-side securing portion 43 engaging with the body-side securing portion 17 to secure the position of thelid 5, and the lid-side sealing surface 39 will engage with the body-side sealing surface 15 in a sealing manner as it is well known per se in the art and as shown inFig. 2 . - In the embodiment shown the
container body 3 and thelid 5 are both made of steel sheet. Theinner surface 41 of the outerlid wall portion 29 has adepression 54 opposite thebead 42. - According to the present invention a securing
ring 55 is applied to thelid 5 as shown inFig. 4 . - The securing
ring 55 comprises a supporting portion orlower portion 57 and in this first embodiment also anupper flange portion 59. Thelower portion 57 is accommodated within the outerlid wall portion 29 and theupper flange portion 59 extends above theannular ledge 33 at an acute angle α (from vertical) which in the embodiment shown is approximately 45°. Thelower portion 57 has anouter portion 61 comprising a third securing portion 63 (third to the body-side and lid-side securing portions that is). Thethird securing portion 63 engages theinner surface 41 of the outerlid wall portion 29 at the level of the lid-side securing portion 43 i.e. an area of said surface directly opposite the lid-side securing portion and immediately adjacent above. - The securing
ring 55 is secured to thelid 5 by an adhesive 64, which in the present embodiment is placed at the transition between the trough bottom 51 and the outerlid wall portion 29. The adhesive 64 is in the embodiment shown an adhesive maintaining elastic or viscoelastic properties when set, such as a pressure sensitive hot-melt in the form of a synthetic rubber. Using a hot-melt facilitates manufacture. The adhesive may e.g. be applied as a continuous string or it may e.g. be applied as circumferentially spaced dots. The applied adhesive may be applied with an excess thickness to be flattened by the securingring 55 when the latter is subsequently inserted to be seated in the circumferential trough portion as shown inFig. 4 . - In the embodiment shown the third securing
portion 63 comprises asecond bead 65 projecting from theouter portion 61. When the securingring 55 is applied to thelid 5 as shown inFig. 4 thesecond bead 65 rests in thedepression 54 and thereby assists securing the securingring 55 to thelid 5. - It should be understood that in the embodiment shown the securing
ring 55 is accommodated within the outerlid wall portion 29 with a tight fit even though a small play is shown only for the sake of illustrating the different parts. - As in the embodiment shown the
lid 5 comprises acircumferential trough portion 43 thelower portion 57 is accommodated within saidtrough portion 43 and in the embodiment shown thelower portion 57 fits around theinner trough wall 49 with a loose fit. - In the embodiment shown the securing
ring 55 comprises an annularconcave portion 67 situated at a lowerinner side 69 of theupper flange portion 59, at which lowerinner side 69 theupper flange portion 59 is integral with thelower portion 57. Opposite the lowerinner side 69 theupper flange portion 59 has a free upperouter side 71. - The invention works as follows within this first embodiment described so far:
- The
container 1 is filled with an amount of a substance, e.g. a liquid such as paint or another chemical, and thelid 5 fitted onto thecontainer body 3 in accordance with normal procedure to close the container. The securingring 55 is applied to thelid 5 either before or after thelid 5 is applied to thecontainer body 3. - If the filled container falls to the ground in an upside-down position whereby a force F of impact is applied at a circumferential point of impact 73 (
Fig. 5 ) to the free upperouter side 71 of theupper flange portion 59 of the securingring 55 the following happens: - The force F has a vertical component Fv and a horizontal component Fh. The vertical component Fv will tend to press the securing
ring 55 downwards and by virtue of the engagement between the securingring 55 and the trough bottom 51, either directly or through the adhesive 64, the lid will be pressed downwards at the circumferential point ofimpact 73 to enhance the securing of the seat of thelid 5 in thecontainer body 3 at the circumferential point of impact. The horizontal component will tend to press, at the circumferential point ofimpact 73, the securingring 55 towards the centre of the lid, seeFig. 5 . Due to rigidity of the securingring 55 the horizontal component Fh of the force F will be directed circumferentially through the securingring 55 as indicated by arrows Fc and consequently the securingring 55 will along its circumference, apart from at the circumferential point ofimpact 73 exert a radial outwards force Fr against theinner side 41 of the outerlid wall portion 29. This radial force Fr will further enhance the pressure of the lid-side securing portion 43 against the body-side securing portion 17 along the other portions of the circumference than at the circumferential point of impact thus providing enhanced securing of thelid 5 in its seat in thecontainer body 3 along the circumference apart from the circumferential point of impact. - As a reaction to the impact the momentum of the liquid inside the container will result in an upwards force Fl on the inner side of the
lid 5 tending to lift thelid 5 off thecontainer body 3. However due to the effect of the securingring 55 described above thelid 5 is able to withstand a force Fl substantially larger than hitherto possible. - To insure the full function of the securing
ring 55 is should be kept in place during the impact. In case of a heavy impact the top edge of the container may be deformed, a part of the this top edge including thecircumferential trough portion 47 and the respective sealing surfaces 15 and 39 in the vicinity of the circumferential point ofimpact 73 being bend out of the general plane of the top 11 of the container. Further the upwards force Fl on the inner side of thelid 5 may dome thecentral portion 27 of the lid upwards, whereby theinner trough wall 49 will be pulled towards the centre of the container, especially at a bending point of the top edge, consequently pulling the trough bottom 51 and the lower part of the outerlid wall portion 29 towards the centre of the container. Both effects will result in forces tending to expel the securingring 55 from its seat in thecircumferential trough portion 47. The adhesive counteracts the forces tending to expel the securingring 55 whereby it may be kept in its place to perform its function. - Apart from the above effect the upper flange portion will per se provide a cushioning effect that enhances the height from which the container may be dropped without leaking as a result of the impact.
- The securing
ring 55 should have a sufficient strength and rigidity to provide the effects and function described above. Thus a suitable material for the securingring 55 is polypropylene, but other materials providing a suitable rigidity and strength may be used. Using a material like polypropylene, which apart from having strength and rigidity also has some resilience and elasticity, the upper flange portion will provide a good cushioning effect. - Further though an acute angle α of approximately 45° is used in the embodiment shown different acute angles may be used e.g. up to 80° or 70° from the vertical. Normally the acute angle will be in the range of 35° to 55° from the vertical. However, in combination with the rigidity of the material, the geometry of the profile of the securing
ring 55, including the acute angle α should be designed for theupper flange portion 59 to withstand collapsing when the container is dropped from a given maximum height of expected "survival" i.e. a maximum height from which the container is expected to be able to drop without leaking. Withstanding collapse the securingring 55 will protect an upper rim part of the container body most effectively from direct impact. However even a smaller benefit of the invention may be obtained even in case of the upper flange portion collapsing since the upper flange portion still will absorb part of the energy of the impact. -
Fig. 4 shows the profile of the securingring 55 of the present example of an embodiment. The profile comprises a majorannular recess 75, which provides for stacking filled containers as such containers would be stacked without the securingring 55. Thus theannular recess 75 provides space for accommodating a circumferential joint at the bottom of a container stacked on top of the container shown. - As it appears from
Fig. 4 the part of thelower portion 57 below theannular recess 75 has a substantial thickness compared to the parts above of the securingring 55. To facilitate production of the securingring 55 by injection moulding the securingring 55 may be recessed e.g. as indicated inFigs. 4 and6 by providingbores 77 in the part of thelower portion 57 below theannular recess 75 thus reducing the local wall thickness in said part. Thebores 77 may as indicated inFig. 4 be provided as through holes, as blind holes, or as a mixture thereof.Fig. 6 shows asmall sector 79 provided withbores 77 but it should be understood that preferablysuch bores 77 are distributed evenly along the entire circumference of the securingring 55. - When designing recesses for the securing
ring 55, care should be taken not to weaken the securing ring to a degree that would ruin the function and effects described above. Thus in an embodiment theouter portion 63 is void of recesses to provide for thesecond bead 65 to extend continuously circumferentially along theinner surface 41 of the outerlid wall portion 29. - Due to the fact that the
upper flange portion 57 extends at an acute angle α above theannular ledge 33 it is possible, even without removing the securingring 55, to open thecontainer 1 in the usual manner by inserting a screw driver-like tool 81 below therim portion 33 of thelid 5 as indicated inFig. 4 and lift thelid 5 from thecontainer body 3 using the screw driver-like tool 81 as a lever. The insertion of a screw driver-like tool 81 may however be facilitated by recessing the upper flange portion, which thus may be interrupted in sectors of e.g. 2 cm along the periphery of the securingring 55. -
Fig. 7 shows an embodiment in which, compared to the embodiment shown inFig. 4 , thesecond bead 65 of a securingring 55a is omitted. ThusFig. 7 generally shows the same container as the preceding figures, but with a different variant of the securing ring. Accordingly similar features of the variants have been given similar reference numerals. By the variant ofFig. 7 anarea 83 of the third securingportion 63 positioned immediately above thesecond bead 65 as seen inFig. 4 will by its abutment against theinner surface 41 of the outerlid wall portion 29 provide for the effect of enhancing the pressure of the lid-side securing portion 43 against the body-side securing portion 17 as well as providing for enhancing the pressure of the lid-side sealing surface 39 against the body-side sealing surface 15. - In the variant of
Fig. 7 recesses 85 in the supportingportion 57 are elongated in the circumferential direction and are open downwards. Hereby excess adhesive 64' may penetrate into therecesses 85 when the securingring 55a is inserted into thecircumferential trough portion 47 during manufacture or in case of an impact. - In the variant of
Fig. 7 the securingring 55a comprises an inner raisedannular portion 87 provided for supporting similar containers stacked on top of the container shown. Usually the bottom of a container stacked on top is supported by a raisedlid portion 89 adjacent the circumferential trough portion 47 a circumferential joint at the bottom of the container stacked on top being accommodated in thecircumferential trough portion 47. At the variant ofFig. 7 the circumferential joint at the bottom of the container stacked on top will be accommodated in anannular recess 75a. - In order to provide a firm support for containers stacked on top the securing
ring 55a this is at its bottom provided with circumferentially spaced knobs orprotrusions 91 that penetrate the adhesive to make firm contact with thetrough bottom 51. - While the securing rings 55 and 55a described so far may be manufactured by injection molding to be subsequently inserted in the circumferential trough portion
Fig. 8 shows yet a different embodiment. In this embodiment a securingring 55b has been provided by initially inserting a first string of hot-melt adhesive 64a that remains tacky when set and subsequently inserting a second string of hot-melt providing the securingring 55b proper. The second string of hot-melt is e.g. EVA that sets to a firm non-tacky condition. - In the embodiment according to
Fig. 8 the securingring 55b lacks an upper flange portion and accordingly this embodiment lacks the cushioning effect of such flange portion. However, this embodiment still provides for the effect of distributing a horizontal component Fh of the force of an impact against the joint 21 orrim portion 31 of the container, only in this case the force is distributed from the material of the container, eventually the outerlid wall portion 29 to the securingring 55b. - It is noted that the centre of gravity of the materials of the first string of hot-melt adhesive 64a as well as the material of the second string of hotmelt are shifted towards the outer
lid wall portion 29. This is obtained by spinning thelid 5 around its central vertical axis during insertion of the respective hot-melt strings.
Claims (15)
- A container (1) comprising a container body (3) and a lid (5),
said container body (3) having a bottom (9), a side wall (7) and an opening at a top (11) opposite the bottom (9),
said opening having a closing area with a body-side sealing surface (15),
said lid (5) having a central portion (27) and an outer lid wall portion (29), said outer lid wall portion (29) being circumferential and surrounding the central portion (27),
said outer lid wall portion (29) providing on an outer side (37) thereof a lid-side sealing surface (39),
said lid-side sealing surface (39) engaging with said body-side sealing surface (15), when the lid (5) is applied to the opening of the container body (3) to close the container (1),
the container (1) further comprising a securing ring (55) comprising a supporting portion (57) accommodated within the outer lid wall portion (29), characterized in that the securing ring is attached to the lid by an adhesive (64). - A container according to claim 1, characterized in that a body-side securing portion (17) diverging in a downwards direction is provided at the body-side sealing surface (15) and a lid-side securing portion (43) diverging in the downwards direction is provided at the lid-side sealing surface (39),
that said lid-side securing portion (43) engages with said body-side securing portion (17), when the lid (5) is applied to the opening of the container body (3) to close the container (1),
that said supporting portion (57) has an outer portion (61) comprising a third securing portion (63), and
that said third securing portion is arranged for engagement with an inner surface (41) of the outer lid wall portion (29), at least spotwise distributed, along the inner circumference of said inner surface. - A container according to claim 2, characterized in that said third securing portion (63) is arranged for engagement with said inner surface (41) of the outer lid wall portion (29) at a level of the lid-side securing portion (43) and/or immediately adjacent the level of the lid-side securing portion.
- A container according to claim 2 or 3, characterized in that the inner surface of the outer lid wall portion has a downward diverging portion opposite the lid-side securing portion, and that the outer portion of the supporting portion comprises at least one bead projecting outwardly to be in engagement with the downward diverging portion of said inner side, preferably the third securing portion (63) comprises said at least one bead (65).
- A container according to any one of claims 1 to 4, characterized in that the adhesive is elastic or viscoelastic in a set condition.
- A container according to any one of the claims 1 to 5, characterized in that a rim portion (31) and an annular ledge (33) is provided at an upper end of said outer lid wall portion (29), and
the securing ring comprises an upper flange portion (59) extending from the supporting portion (57) above the annular ledge (33) at an acute angle (α) of less than 80° from vertical. - A container according to claim 6, characterized in that the upper flange portion (59) is conical upwardly diverging and has a lower inner side (69) connected integrally with the supporting portion (57) and a free upper outer side (71).
- A container according to claim 6 or 7, characterized in that said acute angle (α) is less than 70°, preferably in the range 35° to 55°.
- A container according to any one of the claims 1 to 8, characterized in that the supporting portion (57) of the securing ring fits within the outer lid wall portion (29) with a tight fit.
- A container according to any one of the claims 1 to 9, characterized in that a circumferential trough portion (47) comprising an inner trough wall (49), a trough bottom (51) and said outer lid wall portion (29) is surrounding the central portion (27) of the lid (5) and in that the supporting portion (57) of the securing ring (55) fits around the inner trough wall (49) with a loose fit.
- A container according to any one of the claims 1 to 10, characterized in that the securing ring (55) is recessed (77).
- A container according to any one of claims 1 to 11, characterized in that the adhesive is a hot-melt adhesive.
- A container according to any one of the claims 1 to 5, characterized in that a circumferential trough portion (47) comprising an inner trough wall (49), a trough bottom (51) and said outer lid wall portion (29) is surrounding the central portion (27) of the lid (5), and that the securing ring is cast in situ in the trough portion.
- A container according to any one of claims 1 to 13, characterized in that the closing area is unilateral
- A container according to any of the claims 1 to 14, characterized in that the securing ring is a permanent securing ring.
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP15153682.8A EP3053846A1 (en) | 2015-02-03 | 2015-02-03 | A container with a lid and a securing ring |
PCT/EP2016/052269 WO2016124637A1 (en) | 2015-02-03 | 2016-02-03 | A container with a lid and a securing ring |
DK16703495.8T DK3253670T3 (en) | 2015-02-03 | 2016-02-03 | ConSafeX with glue |
PL16703495T PL3253670T3 (en) | 2015-02-03 | 2016-02-03 | A container with a lid and a securing ring |
EP16703495.8A EP3253670B1 (en) | 2015-02-03 | 2016-02-03 | A container with a lid and a securing ring |
ES16703495T ES2775550T3 (en) | 2015-02-03 | 2016-02-03 | A container with a lid and a clamping ring |
PT167034958T PT3253670T (en) | 2015-02-03 | 2016-02-03 | A container with a lid and a securing ring |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP15153682.8A EP3053846A1 (en) | 2015-02-03 | 2015-02-03 | A container with a lid and a securing ring |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3053846A1 true EP3053846A1 (en) | 2016-08-10 |
Family
ID=52465218
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP15153682.8A Withdrawn EP3053846A1 (en) | 2015-02-03 | 2015-02-03 | A container with a lid and a securing ring |
EP16703495.8A Active EP3253670B1 (en) | 2015-02-03 | 2016-02-03 | A container with a lid and a securing ring |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP16703495.8A Active EP3253670B1 (en) | 2015-02-03 | 2016-02-03 | A container with a lid and a securing ring |
Country Status (6)
Country | Link |
---|---|
EP (2) | EP3053846A1 (en) |
DK (1) | DK3253670T3 (en) |
ES (1) | ES2775550T3 (en) |
PL (1) | PL3253670T3 (en) |
PT (1) | PT3253670T (en) |
WO (1) | WO2016124637A1 (en) |
Citations (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE687540C (en) * | 1937-03-07 | 1940-01-31 | Paul Nofer | Locking device for container |
US3018911A (en) * | 1959-09-10 | 1962-01-30 | Anchor Hocking Glass Corp | Closure cap and method of making same |
DE3339777A1 (en) | 1982-11-08 | 1984-05-10 | Carnaud Emballage, 92100 Boulogne sur Seine | Container consisting of body and press-in lid |
US4728003A (en) | 1986-05-22 | 1988-03-01 | Davey Kenneth G | Removable retaining device for a container lid |
EP0383745A1 (en) * | 1989-02-17 | 1990-08-22 | Blagden Industries Public Limited Company | Container |
WO1992004248A1 (en) | 1990-09-03 | 1992-03-19 | Metalvarefabriken Baltic A/S | A closure device for a container |
WO1996032335A1 (en) | 1995-04-11 | 1996-10-17 | Thomassen & Drijver-Verblifa N.V. | The combination of a metal can and a lid |
WO1998035882A1 (en) | 1997-02-14 | 1998-08-20 | Glud & Marstrand A/S | Receptacle with cover for containing a fluid medium |
WO2006032539A1 (en) | 2004-09-24 | 2006-03-30 | Impress Group B.V. | Combination of a can and a lid |
US7617946B2 (en) | 2003-05-22 | 2009-11-17 | Bway Corporation | Transportation ring |
WO2011041826A1 (en) | 2009-10-06 | 2011-04-14 | Vip Steel Packaging Pty Ltd | Safety rings for liquid containers |
WO2013041226A1 (en) | 2011-09-20 | 2013-03-28 | Emballator Ulricehamns Bleck Ab | Container with lid |
-
2015
- 2015-02-03 EP EP15153682.8A patent/EP3053846A1/en not_active Withdrawn
-
2016
- 2016-02-03 WO PCT/EP2016/052269 patent/WO2016124637A1/en active Application Filing
- 2016-02-03 PT PT167034958T patent/PT3253670T/en unknown
- 2016-02-03 DK DK16703495.8T patent/DK3253670T3/en active
- 2016-02-03 EP EP16703495.8A patent/EP3253670B1/en active Active
- 2016-02-03 PL PL16703495T patent/PL3253670T3/en unknown
- 2016-02-03 ES ES16703495T patent/ES2775550T3/en active Active
Patent Citations (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE687540C (en) * | 1937-03-07 | 1940-01-31 | Paul Nofer | Locking device for container |
US3018911A (en) * | 1959-09-10 | 1962-01-30 | Anchor Hocking Glass Corp | Closure cap and method of making same |
DE3339777A1 (en) | 1982-11-08 | 1984-05-10 | Carnaud Emballage, 92100 Boulogne sur Seine | Container consisting of body and press-in lid |
US4728003A (en) | 1986-05-22 | 1988-03-01 | Davey Kenneth G | Removable retaining device for a container lid |
EP0383745A1 (en) * | 1989-02-17 | 1990-08-22 | Blagden Industries Public Limited Company | Container |
WO1992004248A1 (en) | 1990-09-03 | 1992-03-19 | Metalvarefabriken Baltic A/S | A closure device for a container |
WO1996032335A1 (en) | 1995-04-11 | 1996-10-17 | Thomassen & Drijver-Verblifa N.V. | The combination of a metal can and a lid |
WO1998035882A1 (en) | 1997-02-14 | 1998-08-20 | Glud & Marstrand A/S | Receptacle with cover for containing a fluid medium |
US7617946B2 (en) | 2003-05-22 | 2009-11-17 | Bway Corporation | Transportation ring |
WO2006032539A1 (en) | 2004-09-24 | 2006-03-30 | Impress Group B.V. | Combination of a can and a lid |
WO2011041826A1 (en) | 2009-10-06 | 2011-04-14 | Vip Steel Packaging Pty Ltd | Safety rings for liquid containers |
WO2013041226A1 (en) | 2011-09-20 | 2013-03-28 | Emballator Ulricehamns Bleck Ab | Container with lid |
Also Published As
Publication number | Publication date |
---|---|
PT3253670T (en) | 2020-03-10 |
EP3253670B1 (en) | 2019-12-04 |
PL3253670T3 (en) | 2020-07-27 |
WO2016124637A1 (en) | 2016-08-11 |
EP3253670A1 (en) | 2017-12-13 |
DK3253670T3 (en) | 2020-03-09 |
ES2775550T3 (en) | 2020-07-27 |
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