EP0482390A1 - Container with double wall - Google Patents
Container with double wall Download PDFInfo
- Publication number
- EP0482390A1 EP0482390A1 EP91116788A EP91116788A EP0482390A1 EP 0482390 A1 EP0482390 A1 EP 0482390A1 EP 91116788 A EP91116788 A EP 91116788A EP 91116788 A EP91116788 A EP 91116788A EP 0482390 A1 EP0482390 A1 EP 0482390A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- container
- walls
- lid
- gap
- pair
- 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- Withdrawn
Links
Images
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
- B65D11/00—Containers having bodies formed by interconnecting or uniting two or more rigid, or substantially rigid, components made wholly or mainly of plastics material
- B65D11/20—Details of walls made of plastics material
- B65D11/22—Reinforcing for strengthening parts of 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
- B65D19/00—Pallets or like platforms, with or without side walls, for supporting loads to be lifted or lowered
- B65D19/02—Rigid pallets with side walls, e.g. box pallets
- B65D19/06—Rigid pallets with side walls, e.g. box pallets with bodies formed by uniting or interconnecting two or more components
- B65D19/18—Rigid pallets with side walls, e.g. box pallets with bodies formed by uniting or interconnecting two or more components made wholly or mainly of plastics material
-
- 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
- B65D2519/00—Pallets or like platforms, with or without side walls, for supporting loads to be lifted or lowered
- B65D2519/00004—Details relating to pallets
- B65D2519/00009—Materials
- B65D2519/00014—Materials for the load supporting surface
- B65D2519/00034—Plastic
-
- 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
- B65D2519/00—Pallets or like platforms, with or without side walls, for supporting loads to be lifted or lowered
- B65D2519/00004—Details relating to pallets
- B65D2519/00009—Materials
- B65D2519/00014—Materials for the load supporting surface
- B65D2519/00044—Combination, e.g. different elements made of different materials, laminates
-
- 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
- B65D2519/00—Pallets or like platforms, with or without side walls, for supporting loads to be lifted or lowered
- B65D2519/00004—Details relating to pallets
- B65D2519/00009—Materials
- B65D2519/00049—Materials for the base surface
- B65D2519/00069—Plastic
-
- 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
- B65D2519/00—Pallets or like platforms, with or without side walls, for supporting loads to be lifted or lowered
- B65D2519/00004—Details relating to pallets
- B65D2519/00009—Materials
- B65D2519/00119—Materials for the construction of the reinforcements
- B65D2519/00139—Plastic
-
- 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
- B65D2519/00—Pallets or like platforms, with or without side walls, for supporting loads to be lifted or lowered
- B65D2519/00004—Details relating to pallets
- B65D2519/00009—Materials
- B65D2519/00154—Materials for the side walls
- B65D2519/00174—Plastic
-
- 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
- B65D2519/00—Pallets or like platforms, with or without side walls, for supporting loads to be lifted or lowered
- B65D2519/00004—Details relating to pallets
- B65D2519/00009—Materials
- B65D2519/00154—Materials for the side walls
- B65D2519/00184—Combination, e.g. different elements made of different materials, laminates
-
- 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
- B65D2519/00—Pallets or like platforms, with or without side walls, for supporting loads to be lifted or lowered
- B65D2519/00004—Details relating to pallets
- B65D2519/00009—Materials
- B65D2519/00189—Materials for the lid or cover
- B65D2519/00208—Plastic
-
- 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
- B65D2519/00—Pallets or like platforms, with or without side walls, for supporting loads to be lifted or lowered
- B65D2519/00004—Details relating to pallets
- B65D2519/00009—Materials
- B65D2519/00189—Materials for the lid or cover
- B65D2519/00218—Combination, e.g. different elements made of different materials, laminates
-
- 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
- B65D2519/00—Pallets or like platforms, with or without side walls, for supporting loads to be lifted or lowered
- B65D2519/00004—Details relating to pallets
- B65D2519/00009—Materials
- B65D2519/00223—Materials for the corner elements or corner frames
- B65D2519/00243—Plastic
-
- 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
- B65D2519/00—Pallets or like platforms, with or without side walls, for supporting loads to be lifted or lowered
- B65D2519/00004—Details relating to pallets
- B65D2519/00009—Materials
- B65D2519/00223—Materials for the corner elements or corner frames
- B65D2519/00253—Combination, e.g. different elements made of different materials, laminates
-
- 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
- B65D2519/00—Pallets or like platforms, with or without side walls, for supporting loads to be lifted or lowered
- B65D2519/00004—Details relating to pallets
- B65D2519/00258—Overall construction
- B65D2519/00263—Overall construction of the pallet
- B65D2519/00268—Overall construction of the pallet made of one piece
-
- 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
- B65D2519/00—Pallets or like platforms, with or without side walls, for supporting loads to be lifted or lowered
- B65D2519/00004—Details relating to pallets
- B65D2519/00258—Overall construction
- B65D2519/00283—Overall construction of the load supporting surface
- B65D2519/00288—Overall construction of the load supporting surface made of one piece
-
- 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
- B65D2519/00—Pallets or like platforms, with or without side walls, for supporting loads to be lifted or lowered
- B65D2519/00004—Details relating to pallets
- B65D2519/00258—Overall construction
- B65D2519/00313—Overall construction of the base surface
- B65D2519/00318—Overall construction of the base surface made of one piece
-
- 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
- B65D2519/00—Pallets or like platforms, with or without side walls, for supporting loads to be lifted or lowered
- B65D2519/00004—Details relating to pallets
- B65D2519/00258—Overall construction
- B65D2519/00313—Overall construction of the base surface
- B65D2519/00328—Overall construction of the base surface shape of the contact surface of the base
- B65D2519/00333—Overall construction of the base surface shape of the contact surface of the base contact surface having a stringer-like shape
-
- 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
- B65D2519/00—Pallets or like platforms, with or without side walls, for supporting loads to be lifted or lowered
- B65D2519/00004—Details relating to pallets
- B65D2519/00258—Overall construction
- B65D2519/00398—Overall construction reinforcements
- B65D2519/00402—Integral, e.g. ribs
- B65D2519/00407—Integral, e.g. ribs on the load supporting surface
-
- 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
- B65D2519/00—Pallets or like platforms, with or without side walls, for supporting loads to be lifted or lowered
- B65D2519/00004—Details relating to pallets
- B65D2519/00258—Overall construction
- B65D2519/00398—Overall construction reinforcements
- B65D2519/00402—Integral, e.g. ribs
- B65D2519/00422—Integral, e.g. ribs on the walls
-
- 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
- B65D2519/00—Pallets or like platforms, with or without side walls, for supporting loads to be lifted or lowered
- B65D2519/00004—Details relating to pallets
- B65D2519/00258—Overall construction
- B65D2519/00398—Overall construction reinforcements
- B65D2519/00402—Integral, e.g. ribs
- B65D2519/00427—Integral, e.g. ribs on the lid or cover
-
- 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
- B65D2519/00—Pallets or like platforms, with or without side walls, for supporting loads to be lifted or lowered
- B65D2519/00004—Details relating to pallets
- B65D2519/00258—Overall construction
- B65D2519/00492—Overall construction of the side walls
- B65D2519/00527—Hollow walls
-
- 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
- B65D2519/00—Pallets or like platforms, with or without side walls, for supporting loads to be lifted or lowered
- B65D2519/00004—Details relating to pallets
- B65D2519/00736—Details
- B65D2519/008—Drainage means
-
- 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
- B65D2519/00—Pallets or like platforms, with or without side walls, for supporting loads to be lifted or lowered
- B65D2519/00004—Details relating to pallets
- B65D2519/00736—Details
- B65D2519/00805—Means for facilitating the removal of the load
-
- 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
- B65D2519/00—Pallets or like platforms, with or without side walls, for supporting loads to be lifted or lowered
- B65D2519/00004—Details relating to pallets
- B65D2519/00736—Details
- B65D2519/0086—Protection against environmental hazards, e.g. humidity, bacteria, fire
Definitions
- This invention relates to plastic containers.
- a plastics container comprising a base wall, a pair of side walls and a pair of end walls, wherein the walls of at least one of the said pairs of walls comprise a pair of parallel surfaces connected together and re-inforced by cross pieces.
- the container is preferably an injection moulding and the cross-pieces extend in the direction of mould movement.
- a wall is provided which is reinforced by projections but is unencumbered by re-inforcing on both its interior and exterior surfaces which are preferably entirely smooth.
- at least one of the remaining walls is reinforced but does not comprise parallel surfaces, this said wall preferably being the base wall.
- the side and end walls comprise parallel surfaces joined together by cross-pieces as aforedescribed. Insulation material may be inserted between the surfaces of the multi-surface walls.
- One of the pairs of side and end walls preferably extends below the base wall to leave a gap below the base wall, into which gap the forks of a fork lift truck can be inserted to permit the container to be carried thereby.
- the walls of the other pair of walls preferably taper at the entrance to the gap to provide a lead-in surface for the forks.
- a high wear-resistant, high density polyethylene plate is preferably provided at such tapered portion to protect it.
- the extensions may conveniently be formed separately and inserted between the surfaces.
- the container is conveniently provided with a lid.
- This lid preferably has an interior rim which fits within the side and end walls.
- the inner surface of the rim is preferably radiussed to provide a rounded corner for ease of cleaning.
- the lid is preferably a double surface wall which is closed at its edges and which has cross-ribs extending between the surfaces. These surfaces are preferably separately formed by injection moulding and then by heating the ends of the cross-ribs and edges softening these and forcing the surfaces together so that the ribs seal.
- the lid is preferably welded to the end and side walls of the container.
- the lid conveniently has an enlarged opening therein.
- An inlet feed member is preferably received into the opening preferably by being screw threaded therein.
- the feed member preferably has a filling opening with a filling plug closing this opening.
- a vent valve may also be provided in the feed member.
- the size of the opening is preferably such that there is access to the interior of the container for cleaning purposes.
- the lid may be provided with frusto-conical projections to provide locating means for a second container placed thereon.
- the projections are preferably internally cored to receive an eye which may be engaged by a hook for lifting purposes.
- the lid may have locating means that engage in recesses in the walls.
- the base of the container is preferably provided with an outlet opening which is preferably located near to one of the other walls and the base wall preferably slopes towards the outer opening. Within the opening there may be received the inlet member of an angled elbow connection to permit liquid contents of the container to be delivered outside the envelope of the container.
- the container 10 is formed as a plastics injection moulding.
- the container 10 which is parallelipipedal in shape, comprises a body 12 and a lid (described below).
- the body 12 comprises a base wall 16, a pair of opposite side walls 18 and a pair of opposite end walls 20.
- the side and end walls 18 and 20 are each comprised by a pair of spaced parallel surface members 22 and 24 which are connected together by cross-pieces 26 and which are open at their lower ends.
- the cross-pieces 26 extend vertically from the base wall 16, i.e. in the direction of mould movement during the de-moulding of the container.
- the side and end walls are of double wall construction re-inforced by the cross-pieces 26.
- the interior and exterior surfaces of each of the double walls is smooth.
- the base wall 16 is also re-inforced by projection walls 16 a arranged in a mesh-like formation as is known in the art. These projection walls 16a form continuations of the cross-pieces 26.
- the side and end walls and the base walls are heavily radiused for ease of cleaning.
- the base wall 16 has an outlet opening 28 which is located near to one side 18 about midway between the end walls 20.
- the base wall 16 slopes towards this outlet opening 28.
- a plug 29 normally closes this opening 28.
- connection 30 (shown in chain lines) which may be inserted into the opening 28 for delivering the contents of the container is provided.
- the connection 30 has a vertical inlet member 31 that is received within the outlet opening 28, a long delivery arm 32 including a closure cock 34, and a delivery spout 36.
- the connection 30 can thus permit liquid contents of the container to be delivered outside the envelope of the container. (Although the connection 30 is shown projecting inwardly of the container, it can be, and usually is arranged to be swung so as to project outwardly.)
- each foot 38 comprises an upstanding leg 42 that fits between the lower portion of the surface members 22 and 24 and has at locations along its length a pair of projections which fit into corresponding openings in the outer surface members 22. Thus each foot 38 is firmly held in position.
- Each foot 38 also has a pair of openings 44 to receive the forks of a fork-lift truck under certain circumstances which will be discussed below.
- the projection walls 16 a running along the base wall 16 in the direction of the gap 40 wrap around the underside of the radiussed connection between the base 16 and the surface members 22.
- the edges of these longitudinal projection walls 16 a lie on an arc which is larger than the radius of the connection and which is centred inwardly of the container than the centre of the radiussed connection.
- the lower edges of the cross-pieces 26 lie on the continuation of this arc.
- the transverse projection walls 16 are of the same height as the longitudinal projection walls.
- a lead-in portion 46 which is up to 50% larger than the remainder of the gap 40, to serve to facilitate and guide the entry of the forks into the gap 40.
- a high-wear-resistant polyurethane plate 48 is provided at such lead-in portion to protect it.
- the plate 48 has projections on its upper surface that fit firmly in between the projection walls of the base wall thereby holding the plate 48 firmly in position.
- the upper end of the container 10 is closed by a lid 50 which is welded to the end and side walls of the container.
- the lid 50 has a pair of surface walls 52 and 54 which are closed at their edges 54 and which have cross-ribs 58 extending therebetween.
- These surfaces 52 and 54 are separately formed by injection moulding each to have have portions of the cross-ribs 58 integral with it. After the surfaces 52 and 54 are thus formed, the ends of the cross-ribs 58 and the edges 60 are heated to soften them. The surfaces 52 and 54 are then forced together so that the ends of the ribs 58 and edges 54 seal with one another to form an integral unit.
- the lid 50 On its underside, the lid 50 has a peripheral recess 64 so that the lid body fits closely within the side and end walls 18 and 20.
- the inner surface 66 of the rim 64 is heavily radiused to provide a rounded corner for ease of cleaning.
- the lid 50 has an enlarged aperture 68 therein.
- the size of the opening is preferably such that there is access to the interior of the container for cleaning purposes.
- a closure member 70 is threadedly received into the aperture 68.
- the inlet member 70 incorporates a filling opening 72 with a filling plug 74 threadedly received therein to close this opening 72.
- a vent valve 76 is also provided in the closure member 70.
- the lid 50 has low wide frusto-conical projections 78.
- a bore (not shown) is formed in each such projection 78 to receive a lifting eye 80 which may be engaged by a hook for lifting purposes.
- the lid 50 has a recess which engages on a projection at junctions between the side and end walls for additional locating of the lid on the container.
- the container can be easily lifted by a fork-lift truck with the forks passing through the openings in the feet. If it is desired to tip the container for any purpose, the forks can be passed through the openings 44 in the feet 38 so that there is a firm connection therebetween.
- the container 10 as above described may be of any convenient size which may range from two hundred litres to fifteen hundred litres. Because of the double surface construction, the side and end walls will be rigid and will not bulge when the container is filled with liquid. Furthermore, a degree of insulation is achieved with the air gap and may be supplemented by inserting between the walls foam or other insulating material (indicated at 82 in Figure 4). Because of its cuboidal form, the container provides a very efficient containment for liquids.
- parallel is used in to include in its meaning “near parallel” as many parts have a small taper (normally of the order of 4°) to facilitate de-moulding.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
A plastics container (10) comprises a base (16), a pair of side walls (18) and a pair of end walls (20). The side and end walls comprise a pair of parallel surfaces (22, 24) connected together and re-inforced by cross pieces (26) which extend in the direction of mould movement. The walls are thus reinforced by projections but unencumbered by re-inforcing on both their interior and exterior surfaces which are entirely smooth. Insulation material (82) is inserted between the surfaces of the walls. The end walls (20) extend below the base (16) to leave a gap (40) therebelow, into which gap the forks of a fork lift truck can be inserted to permit the container to be carried thereby. The side walls (18) taper at the entrance to the gap to provide a lead-in surface for the forks. A high wear-resistant, high density polyethylene plate (46) is provided at such tapered portion to protect it.
Description
- This invention relates to plastic containers.
- According to one aspect of the invention there is provided a plastics container comprising a base wall, a pair of side walls and a pair of end walls, wherein the walls of at least one of the said pairs of walls comprise a pair of parallel surfaces connected together and re-inforced by cross pieces. The container is preferably an injection moulding and the cross-pieces extend in the direction of mould movement. Thus a wall is provided which is reinforced by projections but is unencumbered by re-inforcing on both its interior and exterior surfaces which are preferably entirely smooth. Preferably at least one of the remaining walls is reinforced but does not comprise parallel surfaces, this said wall preferably being the base wall. Preferably the side and end walls comprise parallel surfaces joined together by cross-pieces as aforedescribed. Insulation material may be inserted between the surfaces of the multi-surface walls.
- One of the pairs of side and end walls preferably extends below the base wall to leave a gap below the base wall, into which gap the forks of a fork lift truck can be inserted to permit the container to be carried thereby. The walls of the other pair of walls preferably taper at the entrance to the gap to provide a lead-in surface for the forks. A high wear-resistant, high density polyethylene plate is preferably provided at such tapered portion to protect it. The extensions may conveniently be formed separately and inserted between the surfaces.
- The container is conveniently provided with a lid. This lid preferably has an interior rim which fits within the side and end walls. The inner surface of the rim is preferably radiussed to provide a rounded corner for ease of cleaning. The lid is preferably a double surface wall which is closed at its edges and which has cross-ribs extending between the surfaces. These surfaces are preferably separately formed by injection moulding and then by heating the ends of the cross-ribs and edges softening these and forcing the surfaces together so that the ribs seal. The lid is preferably welded to the end and side walls of the container.
- The lid conveniently has an enlarged opening therein. An inlet feed member is preferably received into the opening preferably by being screw threaded therein. The feed member preferably has a filling opening with a filling plug closing this opening. A vent valve may also be provided in the feed member. The size of the opening is preferably such that there is access to the interior of the container for cleaning purposes.
- At the upper side of its corners, the lid may be provided with frusto-conical projections to provide locating means for a second container placed thereon. The projections are preferably internally cored to receive an eye which may be engaged by a hook for lifting purposes. Below the projections, the lid may have locating means that engage in recesses in the walls.
- The base of the container is preferably provided with an outlet opening which is preferably located near to one of the other walls and the base wall preferably slopes towards the outer opening. Within the opening there may be received the inlet member of an angled elbow connection to permit liquid contents of the container to be delivered outside the envelope of the container.
- An embodiment of the invention will now be described by way of example with reference to the accompanying drawings.
- In the drawings:-
- Figure 1 is an outside view of a container of the invention,
- Figure 2 is a transverse section through the container,
- Figure 3 is a detail section through the feet of the container, and
- Figure 4 is a detail section on line 4 - 4 of Figure 1.
- Referring now to the drawings, there is shown a
container 10 of the invention. The container is formed as a plastics injection moulding. Thecontainer 10, which is parallelipipedal in shape, comprises abody 12 and a lid (described below). Thebody 12 comprises abase wall 16, a pair ofopposite side walls 18 and a pair ofopposite end walls 20. - The side and
end walls parallel surface members cross-pieces 26 and which are open at their lower ends. Thecross-pieces 26 extend vertically from thebase wall 16, i.e. in the direction of mould movement during the de-moulding of the container. Thus the side and end walls are of double wall construction re-inforced by thecross-pieces 26. Furthermore the interior and exterior surfaces of each of the double walls is smooth. Thebase wall 16 is also re-inforced by projection walls 16a arranged in a mesh-like formation as is known in the art. These projection walls 16a form continuations of thecross-pieces 26. - At their junctions, the side and end walls and the base walls are heavily radiused for ease of cleaning.
- The
base wall 16 has an outlet opening 28 which is located near to oneside 18 about midway between theend walls 20. Thebase wall 16 slopes towards this outlet opening 28. Aplug 29 normally closes thisopening 28. - An angled elbow connection 30 (shown in chain lines) which may be inserted into the
opening 28 for delivering the contents of the container is provided. Theconnection 30 has avertical inlet member 31 that is received within the outlet opening 28, along delivery arm 32 including aclosure cock 34, and adelivery spout 36. Theconnection 30 can thus permit liquid contents of the container to be delivered outside the envelope of the container. (Although theconnection 30 is shown projecting inwardly of the container, it can be, and usually is arranged to be swung so as to project outwardly.) - At their lower ends, the
end walls 20 receiverigid feet 38 on which the container rests to leave agap 40 below thebase wall 16. Eachfoot 38 comprises anupstanding leg 42 that fits between the lower portion of thesurface members outer surface members 22. Thus eachfoot 38 is firmly held in position. Eachfoot 38 also has a pair ofopenings 44 to receive the forks of a fork-lift truck under certain circumstances which will be discussed below. - At the entrance to the
gap 40, the projection walls 16a running along thebase wall 16 in the direction of the gap 40 (i.e. the longitudinal projection or reinforcing walls) wrap around the underside of the radiussed connection between thebase 16 and thesurface members 22. The edges of these longitudinal projection walls 16a lie on an arc which is larger than the radius of the connection and which is centred inwardly of the container than the centre of the radiussed connection. The lower edges of thecross-pieces 26 lie on the continuation of this arc. Thetransverse projection walls 16 are of the same height as the longitudinal projection walls. There is thus formed a lead-inportion 46, which is up to 50% larger than the remainder of thegap 40, to serve to facilitate and guide the entry of the forks into thegap 40. A high-wear-resistant polyurethane plate 48 is provided at such lead-in portion to protect it. Theplate 48 has projections on its upper surface that fit firmly in between the projection walls of the base wall thereby holding theplate 48 firmly in position. - The upper end of the
container 10 is closed by alid 50 which is welded to the end and side walls of the container. Thelid 50 has a pair ofsurface walls edges 54 and which havecross-ribs 58 extending therebetween. Thesesurfaces cross-ribs 58 integral with it. After thesurfaces edges 60 are heated to soften them. Thesurfaces ribs 58 andedges 54 seal with one another to form an integral unit. - On its underside, the
lid 50 has aperipheral recess 64 so that the lid body fits closely within the side and endwalls inner surface 66 of therim 64 is heavily radiused to provide a rounded corner for ease of cleaning. - The
lid 50 has anenlarged aperture 68 therein. The size of the opening is preferably such that there is access to the interior of the container for cleaning purposes. Aclosure member 70 is threadedly received into theaperture 68. Theinlet member 70 incorporates a fillingopening 72 with a fillingplug 74 threadedly received therein to close thisopening 72. Avent valve 76 is also provided in theclosure member 70. - At the upper side of its corners, the
lid 50 has low wide frusto-conical projections 78. A bore (not shown) is formed in eachsuch projection 78 to receive a liftingeye 80 which may be engaged by a hook for lifting purposes. Below theprojections 78, thelid 50 has a recess which engages on a projection at junctions between the side and end walls for additional locating of the lid on the container. - The container can be easily lifted by a fork-lift truck with the forks passing through the openings in the feet. If it is desired to tip the container for any purpose, the forks can be passed through the
openings 44 in thefeet 38 so that there is a firm connection therebetween. - The
container 10 as above described may be of any convenient size which may range from two hundred litres to fifteen hundred litres. Because of the double surface construction, the side and end walls will be rigid and will not bulge when the container is filled with liquid. Furthermore, a degree of insulation is achieved with the air gap and may be supplemented by inserting between the walls foam or other insulating material (indicated at 82 in Figure 4). Because of its cuboidal form, the container provides a very efficient containment for liquids. - The invention is not limited to the precise constructional details hereinbefore described and illustrated in the drawings.
- It is to be noted that in this specification the term "parallel" is used in to include in its meaning "near parallel" as many parts have a small taper (normally of the order of 4°) to facilitate de-moulding.
Claims (10)
- A plastics container comprising a base wall (16), a pair of side walls (22) and a pair of end walls (20), characterised in that the walls of at least one of the said pairs of walls comprise a pair of parallel surfaces (22, 24) connected together and re-inforced by cross pieces (26).
- A container as claimed in claim 1 characterised in that each reinforced wall is unencumbered by re-inforcing on both on its interior and exterior surfaces.
- A container as claimed in claim 2 characterised in that the interior and exterior surfaces of the wall are entirely smooth.
- A container as claimed in any one of the preceding claims characterised in that the base wall (16) is reinforced but does not comprise parallel surfaces.
- A container as claimed in any one of the preceding claims characterised in that all the side and end walls (18, 20) comprise parallel surfaces (22, 24) joined together by cross-pieces (26).
- A container as claimed in any one of the preceding claims characterised in that insulation material (82) is inserted between the surfaces of the multi-surface walls.
- A container as claimed in any one of the preceding claims characterised in that the end walls have extensions (38) extending below the base wall (16) to provide a support for the container in such a way as to leave a gap (40) below the base wall, into which gap (40) the forks of a fork lift truck can be inserted to permit the container to be carried thereby in that the side walls (18) taper at the entrance to the gap to provide a lead-in surface (46) for the forks and in that a high wear resistant high density polyethylene plate (48) is provided at such tapered portion to protect it.
- A container as claimed in any one of the preceding claims provided with a lid (50) characterised in that the lid (50) comprises a double surface wall which is closed at its edges and which has cross-ribs (58) extending between the surfaces in that the lid has an interior rim (66) which fits within the side and end walls, the inner surface of the rim being radiussed to provide a rounded corner for ease of cleaning.
- A container as claimed in claim 3 characterised in that the lid (50) is provided at the upper side of its corners with frusto-conical projections (78) to provide locating means for a second container placed thereon.
- A container as claimed in any one of the preceding claims characterised in that the base (16) of the container is provided with an outlet opening located near to one of the said other walls and in that the the base wall slopes towards the outlet opening.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU63947/90 | 1990-10-10 | ||
AU63947/90A AU636393B2 (en) | 1990-02-19 | 1990-10-10 | Drill tube |
Publications (1)
Publication Number | Publication Date |
---|---|
EP0482390A1 true EP0482390A1 (en) | 1992-04-29 |
Family
ID=3748717
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP91116788A Withdrawn EP0482390A1 (en) | 1990-10-10 | 1991-10-01 | Container with double wall |
Country Status (1)
Country | Link |
---|---|
EP (1) | EP0482390A1 (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0799771A1 (en) * | 1996-04-01 | 1997-10-08 | Kalle Nalo GmbH | Multifunctional container |
GB2321046A (en) * | 1997-01-10 | 1998-07-15 | Drilltec Patents & Tech | Pallet with removable or part-removable cover |
NL1009023C2 (en) * | 1998-04-28 | 1999-10-29 | Fusion Kunststoffen Bv | Container. |
CN102514795A (en) * | 2012-01-12 | 2012-06-27 | 上海鸿润科技有限公司 | Side reinforcing plate of foldable circulating box and manufacturing method of side reinforcing plate |
IT201900018569A1 (en) * | 2019-10-11 | 2021-04-11 | Antonio Luigi Piero Maria Foresti | EASILY SANITIZABLE PLASTIC CONTAINER FOR THE FOOD INDUSTRY |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4375265A (en) * | 1978-07-21 | 1983-03-01 | Wetering Gerrit Van De | One piece molded pallet-container |
DE3500427A1 (en) * | 1985-01-09 | 1986-07-10 | Wolfgang Uwe 4444 Bad Bentheim Friedrich | Collapsible transport box |
EP0271228A1 (en) * | 1986-11-17 | 1988-06-15 | Boyce, Graham John | A bin |
CA1261769A (en) * | 1987-12-08 | 1989-09-26 | Bruce Pett | Shipping container |
-
1991
- 1991-10-01 EP EP91116788A patent/EP0482390A1/en not_active Withdrawn
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4375265A (en) * | 1978-07-21 | 1983-03-01 | Wetering Gerrit Van De | One piece molded pallet-container |
DE3500427A1 (en) * | 1985-01-09 | 1986-07-10 | Wolfgang Uwe 4444 Bad Bentheim Friedrich | Collapsible transport box |
EP0271228A1 (en) * | 1986-11-17 | 1988-06-15 | Boyce, Graham John | A bin |
CA1261769A (en) * | 1987-12-08 | 1989-09-26 | Bruce Pett | Shipping container |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0799771A1 (en) * | 1996-04-01 | 1997-10-08 | Kalle Nalo GmbH | Multifunctional container |
GB2321046A (en) * | 1997-01-10 | 1998-07-15 | Drilltec Patents & Tech | Pallet with removable or part-removable cover |
NL1009023C2 (en) * | 1998-04-28 | 1999-10-29 | Fusion Kunststoffen Bv | Container. |
EP0953508A1 (en) * | 1998-04-28 | 1999-11-03 | Fusion Kunststoffen B.V. | Container |
CN102514795A (en) * | 2012-01-12 | 2012-06-27 | 上海鸿润科技有限公司 | Side reinforcing plate of foldable circulating box and manufacturing method of side reinforcing plate |
CN102514795B (en) * | 2012-01-12 | 2014-03-05 | 上海鸿研物流技术有限公司 | Side reinforcing plate of foldable circulating box and manufacturing method of side reinforcing plate |
IT201900018569A1 (en) * | 2019-10-11 | 2021-04-11 | Antonio Luigi Piero Maria Foresti | EASILY SANITIZABLE PLASTIC CONTAINER FOR THE FOOD INDUSTRY |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US5201432A (en) | Containers | |
US5544777A (en) | Stackable plastic container with drain sump and pallet and method of making the same | |
US5402915A (en) | Bottom draining bin-type, bulk fluid container with insert | |
US3212681A (en) | Container structure | |
US5259509A (en) | Stackable storage tank | |
CA2256704C (en) | Plastic container dispensing fitment | |
CA2311511C (en) | Stackable re-usable container | |
US4161248A (en) | Container for wire spool | |
US5265743A (en) | Stackable plastic container | |
US2887251A (en) | Means for the transporting of thermoplastic materials in bulk | |
EP0303264B1 (en) | Safety pallett-drum assembly system for transport of dangerous materials | |
US6047846A (en) | Plastic drum with drain sump | |
KR950003129A (en) | Pallet Storage Container | |
US5119972A (en) | Container for supplying agricultural treatment agents in a closed application system | |
US5108387A (en) | Collapsible container for liquids | |
US5385233A (en) | Portable bulk storage container | |
US4804134A (en) | Fluid container with handle | |
EP0482390A1 (en) | Container with double wall | |
EP0591261B1 (en) | Bulk container | |
US5527052A (en) | Spill containing drum cart | |
US6142327A (en) | Double ended carrier | |
US5402909A (en) | Drum for storing and dispensing liquids | |
US5622279A (en) | Pallet container for transportation and storage of liquids | |
US3477631A (en) | Combination pallet and container | |
US4944399A (en) | Container with integral foldable handle |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): DE FR GB IT |
|
17P | Request for examination filed |
Effective date: 19921016 |
|
17Q | First examination report despatched |
Effective date: 19931229 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
18D | Application deemed to be withdrawn |
Effective date: 19941101 |