Source: https://patents.google.com/patent/GB2086862A/en
Timestamp: 2018-12-18 13:53:02
Document Index: 711003008

Matched Legal Cases: ['art 14', 'art 14', 'art 14', 'art 14', 'art 14', 'art 21', 'art 14', 'art 14', 'art 25', 'art 26', 'art 27', 'art 26', 'art 27', 'art 14', 'art 25', 'art 14', 'art 25', 'art 14']

GB2086862A - Container and cover - Google Patents
GB2086862A
GB2086862A GB8129081A GB8129081A GB2086862A GB 2086862 A GB2086862 A GB 2086862A GB 8129081 A GB8129081 A GB 8129081A GB 8129081 A GB8129081 A GB 8129081A GB 2086862 A GB2086862 A GB 2086862A
GB8129081A
GB2086862B (en )
Norplasta Stromberg A S
NORPLASTA STROMBERG AS
A pail-form container 11 has, at the top of its side wall, integral shaped bead 13. Considered in radial section, this bead 13 merges with downturned leg 16 which connects by outwardly- directed flange 15 with upright double-wall part 14 with bracing web 24, between the latter and the wall of the container, below the flange 15. Inwardly projecting rib 18 on the wall 14 forms the groove between wall 14 and leg 16 into undercut configuration for corresponding engagement by an outwardly projecting rib 28 on outer leg 29 of a U-shaped bead around complementary cover member 12. <IMAGE>
SPECIFICATION Container and cover The invention relates to a container of the kind having a mouth opening which can be provided with a cover member, having a upwardly-directed, undercut annular groove at the edge of the opening arranged to mate with a corresponding annular rib projecting substantially perpendicular to the plane of the cover member, and having an external, downwardly directed flange, as well as a cover member for the container.
A commonly used type of container with a cover member has a pail shape or bucket shape and a cover member covering the mouth opening, this cover member having a flange interlocked with a rim at the mouth opening. This structure is, however, susceptible to the cover member coming off when the container is dropped or if the cover member engages with an obstacle.
Further, such a container, when manufactured of commonly-used plastics material, cracks easily if dropped or banged against a hard base.
An object of the invention is to provide a container and a corresponding cover member, of the kind referred to above, which is resistant to shocks, e.g. on dropping, and which permits the use of a cover member which is suitable for application by machine and gives a safe seal even when subjected to pressure loading e.g. as a result of stacking.
According to the invention, this is achieved by the provision of a container as aforesaid characterized in that adjoining the undercut annular groove, on the inner side thereof, is a further annular groove with a generally V-formed upwardly directed opening, which is adapted to engage with a corresponding annular rib on the cover member.
Correspondingly the cover member is preferably characterized in that the annular bead is provided with a radially projecting annular locking rib to engage with the undercut groove, and that an annular groove is provided on the inner side of the bead, the lower edge of which forms a V-rib.
Such a combined container and cover member is resistant to impacts to its sides and downward pressure loading.
The example will be described further, by way of example, with reference to the accompanying drawings, wherein: Fig. 1 shows a vertical section through a pail with a cover, according to the invention; Fig. 2 shows a part of the pail of Fig. 1 to a larger scale, with the cover fitted; while Fig. 3 is a view from the bottom of a part of the pail of Fig. 1.
In the example, a container or pail 11 with a mating cover 12 is shown. The pail 11 is formed with commonly-known conical walls for stacking.
At the upper rim of the pail, the wall forms an upwardly-projecting annular bead 13. Outside this bead 13 there is a mainly straight double wall part 14 extending over a part of the upper region of the pail and connected to the bead 13 by a radial flange 1 5 which extends in extension sidewardly from an outer leg 1 6 of the bead 13. The outer leg 16 of the bead 13 and the double wall part 14 define between them an outwardly-open annular groove 17. This annular groove 17 is undercut by reason of the presence of an annular rib 18 at the upper edge of the double wall part 14 on the inner side of the latter. The flange 1 5 thus is connected to the double wall part 14 at a spacing from the upper edge thereof.
The bead 1 3 consists of the outer leg 1 6 which extends outwardly and downwardly from a plane upper edge 19, and an inner leg 20 which extends downwardly from the upper edge 19 and is inwardly inclined. In its lower part, the leg 20 is mainly parallel to the pail wall 11, this part 21 being situated a small distance outside the pail wall, to form a groove 22 at the junction between the two parts. The groove 22 is, in the shown embodiment, V-formed to engage a corresponding annular rib 23 on the cover 12. This will be further described.
To brace the double wall part 14, this is connected to the pail wall 11 by a series of webs 24 which extend in the vertical direction of the pail as shown. As shown in Fig. 3, the webs 24 each extend at an angle to a corresponding radial plane.
This increases the ability to withstand shocks against the double wall part 14 and absorb shock energy without transmitting damaging impact to the wall of the pail 11 or on the edge of the cover.
In the shown embodiment thirty six of the webs 24 are provided, but this number can be varied.
The cover 12 is generally disc-shaped with a central cover part 25 and an annular double bead, with an upwardly extending part 26, which is adapted to the bead 1 3 of the pail and a downwardly extending bead part 27 outside the part 26, which part 27 is adapted to mate with the groove 17. The outer bead 27 is provided with an outwardly extending rib 28 which is intended to engage with the annular rib 18 when the cover is mounted on the pail 11.
Outer leg 29 of the bead or annular rib 27 carries on the edge a radially projecting rib 30 which ends a short distance inside the outer line of the double wall part 14. At the junction between the main part 25 of the cover 12 and the inner bead 26 is a series of radially projecting ribs 31 (e.g. six), to facilitate separation of the covers when stacked on mounting in a machine.
At the bottom 32 of the pail 11, the wall is extended to a short flange 33 outside the bottom 32. This flange 33 is reinforced by webs 34 corresponding to the webs 24 between the double wall part 14 and the main wall of the pail 11.
It is suitable to provide the outer edge of the cover 12, i.e. the bead or flange 29, with an outwardly directed bias, as illustrated by dotted lines in Fig. 2. This ensures firm engagement between the two annular ribs 1 8 and 28.
At the outer edge of the central cover part 25 there is a downwardly projecting V-formed rib 23 which, with the cover mounted, engages the groove 22 at the upper edge of the wall of the pail 11. This increases the contact area between the cover and the pail, as the rib 23 and the two beads 26 and 27 ensure three separate sealing areas between the cover and the pail. The rib 23 and the groove 22 will also effectively prevent the cover being pressed into the pail under extraordinary high loads, e.g. on stacking.
The pail of the illustrated embodiment and the corresponding cover are suitably manufactured in known manner of plastics material, e.g.
polyethylene. Plastics materials of different rigidities can be used for the pail and for the cover.
Reference numerals 36 and 37 refer to a series of radial ribs arranged annularly under the bottom 32 and a handle mounted on the double wall part 14, respectively.
1. A container having a mouth opening which can be provided with a cover member, having an upwardly directed, undercut annular groove at the edge of the opening arranged to mate with a corresponding annular rib projecting substantially perpendicular to the plan of the cover member, and having an external, downwardly directed flange, characterized in that adjoining the undercut annular groove, on the inner side thereof, is a further annular groove with a generally Vformed upwardly directed opening, which is adapted to engage with a corresponding annular rib on the cover member.
2. A container as claimed in claim 1, characterized in that the flange extends a distance downwardly from the mouth opening and is connected to the wall of the container by a series of resilient brace ribs extending in the height direction of the container.
3. A container as claimed in claim 2, characterized in that the brace ribs are arranged in the same angle to the corresponding radial plane.
4. A cover member for a container according to claim 1 having a downwardly-directed annular bead adapted to engage with the corresponding annular groove of the container, characterized in that the annular bead is provided with a radially projecting annular locking rib to engage with the undercut groove and that an annular groove is provided on the inner side of the bead, the lower edge of which forms a V-rib.
5. A container and cover substantially as hereinbefore described with reference to and as illustrated in the accompanying drawings.
GB8129081A 1980-09-29 1981-09-25 Container and cover Expired GB2086862B (en)
NO802869A NO149767C (en) 1980-09-29 1980-09-29 Spann el lidded container for same
GB2086862A true true GB2086862A (en) 1982-05-19
GB2086862B GB2086862B (en) 1985-06-05
ID=19885676
GB8129081A Expired GB2086862B (en) 1980-09-29 1981-09-25 Container and cover
DK (1) DK428281A (en)
FI (1) FI66150C (en)
GB (1) GB2086862B (en)
FR2507569A1 (en) * 1981-06-11 1982-12-17 Dme Plastic As Plastic container having a lid
EP0171854A1 (en) * 1984-08-07 1986-02-19 Packaging &amp; Container Manufacturers B.V. Container with hooded lid
EP0280488A2 (en) * 1987-02-25 1988-08-31 Peerless Plastics Packaging Limited Lidded containers
WO2001008995A1 (en) * 1999-07-29 2001-02-08 Thermo Vision Entwicklungs- Und Handels Gmbh Container, especially for food
EP2517971A1 (en) * 2011-04-29 2012-10-31 Canada Post Corporation Material handling device
EP0280488A3 (en) * 1987-02-25 1989-02-08 Peerless Plastics Packaging Limited Lidded containers
EP2520505A1 (en) * 2011-04-29 2012-11-07 Canada Post Corporation Material handling device lid
FI66150C (en) 1984-09-10 grant
FI66150B (en) 1984-05-31 application
FI812688L (en) 1982-03-30 grant
FI812688A (en) application
DK428281A (en) 1982-03-30 application
GB2086862B (en) 1985-06-05 grant
1986-05-21 PCNP Patent ceased through non-payment of renewal fee