WO1989010314A1 - Emballage - Google Patents

Emballage Download PDF

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Publication number
WO1989010314A1
WO1989010314A1 PCT/GB1989/000502 GB8900502W WO8910314A1 WO 1989010314 A1 WO1989010314 A1 WO 1989010314A1 GB 8900502 W GB8900502 W GB 8900502W WO 8910314 A1 WO8910314 A1 WO 8910314A1
Authority
WO
WIPO (PCT)
Prior art keywords
cover
blank
container
tray
flaps
Prior art date
Application number
PCT/GB1989/000502
Other languages
English (en)
Inventor
Peter Chapman
Dennis Rowe
Guy Harrison
Original Assignee
Innovators In Packaging Limited
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Innovators In Packaging Limited filed Critical Innovators In Packaging Limited
Publication of WO1989010314A1 publication Critical patent/WO1989010314A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D5/00—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper
    • B65D5/42—Details of containers or of foldable or erectable container blanks
    • B65D5/64—Lids
    • 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
    • B65D77/00—Packages formed by enclosing articles or materials in preformed containers, e.g. boxes, cartons, sacks or bags
    • B65D77/10—Container closures formed after filling
    • B65D77/20—Container closures formed after filling by applying separate lids or covers, i.e. flexible membrane or foil-like covers

Definitions

  • the invention relates to packaging and more specifically to the assembly together of packaging components to provide a package.
  • tray-like open-topped containers which can be conveniently moulded in plastics material, and which are usually closed by a thin transparent plastics film or membrane sealed across the open top to protect the product and help retain it within the container.
  • the package is completed by enclosing the tray-like container in a box formed of card material of suitable gauge which bears graphic material and which serves to provide protection for the relatively easily pierced membrane, and for the container and its contents generally.
  • card material of suitable gauge which bears graphic material and which serves to provide protection for the relatively easily pierced membrane, and for the container and its contents generally.
  • the present invention accordingly provides packaging comprising an open-topped container and a cover therefor, the open-topped container having a cross-sectional area which decreases from the free edge of its side wall structure down towards its floor, and the cover comprising a main panel shaped to overlie the open top of the container, with depending side wall or panel means which taper inwardly from the main panel.
  • the container and cover are then separable by tearing of the cover.
  • the cover can be prepared as a blank of card or other suitable sheet material, preferably with fold lines to define the side panels. Connection together of the side panels into the desired configuration can be effected by adhesive and/or by interengaging connection portions, for example, tab and slot formations.
  • the cover and tray can be held against relative movement by other means than the engagement of the cover panel configuration with the tray side walls, as by arranging for parts of the panel configuration to underlie an outwardly projecting rim of the container.
  • Adhesive can be used additionally or instead between the depending cover panels and the side walls of the tray, in particular where the cover is required to be sealed to the tray.
  • the invention thus also provides a sheet material blank for use in packaging having a central panel and side panels extending from the sides of the central portion, the side panels being arranged to be secured together, or to the side walls of a container to which the cover is applied, so that the free edges of the side panels enclose an area less than that of the central panel.
  • the open-topped container of the package of the invention can have a side wall structure which tapers inwardly from the free edge around the open top, as is convenient when the tray is moulded in a plastics material to facilitate release from the mould.
  • An inturned or out-turned rim may be provided, in particular to provide for the closure of the open top by means of a thin plastics film or membrane, and an out-turned rim can provide the necessary side wall configuration for retention of the cover.
  • the container can have any desired shape. Where it is shaped as a flat tray, the assembled package has an inverted frusto-pyramidal shape and packages can be stacked together on one edge so that the central panels of the covers are rearwardly inclined, to thereby display graphics material on the foremost cover, or the contents of the foremost package through a transparent panel portion.
  • the cover and the container can be readily assembled in accordance with the invention by relatively moving a blank for forming the cover and a tray, previously filled with its contents, so that the blank overlies the tray. Adhesive is then applied to the appropriate surfaces of the blank and the side panels of the blank are folded downwardly onto the tray and held until the adhesive sets.
  • the invention thus also provides a method of and a machine for assembling the package of the invention in which the container and the cover in the form of a blank are relatively positioned so that the blank overlies the container, and in which a folding operation is then performed to effect securement of the cover formed from the blank to the container.
  • adhesive is used to secure the side panels to each other and/or to the side wall of the container, the adhesive is of course applied to the appropriate surfaces before the folding operation begins.
  • the invention can provide for savings in the material of the cover, and for simple and consequently cost effective handling and assembly.
  • Figure 1 is a partial plan view of a blank for forming a cover for a package in accordance with the invention
  • Figure 2 is a partial cross-sectional side view of a container in the shape of a tray with which the cover of Figure 1 is to be assembled;
  • Figure 3 is a fragmentary side view of the cover of Figure 1 after assembly with the tray of Figure 2;
  • Figure 4 is a fragmentary underneath view of the package before assembly has been completed
  • Figure 5 is a view similar to that of Figure 2, but after assembly;
  • Figures 6A, 6B and 6C schematically illustrate, on a smaller scale, successive stages in the assembly of the package.
  • Figure 7 is a fragmentary view of a modified form of the cover of Figure 1.
  • the package illustrated in Figures 1-6 comprises a cover 1 and a tray 2 to which, the cover is secured.
  • the cover is formed from the blank illustrated in Figure 1 which is made of card or other suitable sheet material.
  • the blank comprises a rectangular central panel 10 having side panels or flaps 11 extending from its longer sides, the side edges of the flaps converging away from the central panel. At least the central panel 10 will usually carry graphics material and may include a transparent central area.
  • the blank is scored or otherwise deformed to facilitate folding of the flaps 11 along the lines 12.
  • the shorter sides of the central panel portion also have adjoining end panels or flaps 14 provided with similar fold lines 15.
  • the end flaps 14 extend at their sides beyond the fold lines 12 by way of extension end flap portions 16 separated from the flaps 14 by fold lines 17 which converge away from the central panel 10.
  • Parallel perforations 20 or other lines of weakening extend at right angles from the free edge of one end flap 14, from small cut-outs at this edge which define between them a tab portion which can be pulled upwardly after the cover 1 has been assembled with the tray 2, to split the cover to permit access to the contents of the tray.
  • One or more of such weakening lines could be continued to the opposite free edge.
  • the tray 2 is moulded in plastics material to have a floor 25 and side and end walls 26 which diverge slightly outwardly and upwardly from the floor, to facilitate release of the tray from the mould in which it is formed. Seen in plan, the tray 2 has rounded corners 27 which are chamfered below, at 29. Hollow reinforcing ribs 30 formed along each side extend downwardly to the floor 25. The free edges of the walls 26 are formed as an out-turned rim 31.
  • the cover 1 is assembled with the tray 2 by folding down the four flaps 11,14, with each end flap portion 16 secured as by a suitable adhesive underneath the adjacent side flap 11, with the fold line 17 aligned with its side edge.
  • the structure then is of an inverted open topped box of which the flaps form the side walls which converge inwardly towards each other in frusto-pyramidal shape.
  • a cover in the form of a flat printed blank is fed from a stack 35 of such blanks, as shown in Figure 6A, so as to overlie a tray which has been filled with its contents and the open top of which has been sealed if required by a thin transparent plastics film.
  • the position is then as appears from the underneath view of Figure 4, with the rim 31 of the tray within the rectangle defined by the fold lines 12 and 15.
  • An appropriate quantity of a suitable adhesive is then applied to the upper surfaces of the flap end portions 16 and pressure is applied by assembly tools, as indicated by arrows 40 in Figure 6B, to fold these downwardly on the flaps- 14, as these flaps are being folded downwardly also by pressure applied in the direction of the arrows 41.
  • the free edges of the flaps 14 engage the walls 26 of the tray at a position a little short of the floor 25, with the end flap portions 16 extending at rather less than right angles to the adjoining flaps.
  • the assembled package is then removed from operative adjacency to the assembly tools either by being conveyed laterally or by being raised above the next incoming cover blank from the stack 35 which will be assembled with another tray 2 in the manner just described.
  • the free edges of the cover portion side walls formed by the flaps 11 and 14 engage the lower portions of the tray side walls 26, and because of the tapering of both sets of walls, the tray and cover are held securely together, without the possibility of relative movement, until the cover is torn open, as by use of the tab 22 and perforation lines 20.
  • a cover blank 100 although in other respects similar to the cover blank 1 has a central panel 101 with curved corners 102 corresponding to the curved corners 27 of the rim 31 of the tray 2.
  • the central portion 101 has adjoining side flaps 104 and end flaps 105 defined by fold lines 106 and 107 respectively.
  • the flaps 104 and 105 function similarly to the flaps 11 and 14 and have extension portions 114 and 115 which are spaced from the central panel 11 adjacent the corners 102. Fold lines separating the flaps 104 and 105 from the extension portions 114 and 115 are not provided.
  • the cover 100 is assembled with a tray 2 in a manner similar to that described for the cover 1, but at the position corresponding to that of Figure 6B, adhesive is applied to upper surfaces of the extension portions 115 and the flaps 105 are folded down and the extension portions are wrapped around the curved walls of the tray forming the corners 27.
  • the side wall flaps 104 are then similarly folded down and the extension portions 114 wrapped around the curved tray corner walls, to overlie the adhesive-carrying extension portions 115.
  • These positions of the extension portions 114 and 115, indicated in Figure 7 by broken lines 110, are maintained until the adhesive sets.
  • the spacing of the extension portions 114 and 115 from the main panel 101 allows them to engage the container wall beneath the rim 31.
  • the free edges of the cover flaps again engage the tray side walls 26 adjacent the floor 25, but the adhered flap extension portions 114,115 at each corner underlie the tray rim 31 to enhance the securement of the cover to the tray.
  • connection between the two extension portions 114 and 115 at the corners need not in this instance be effected by adhesive, but can be effected by interlocking tabs and slots, as the slight extension of the effective length of the connected flaps after release of the tension needed to effect the tab and slot connection is not objectionable, because of the engagement of the connected flap portions underneath the tray rim 31.
  • the invention relates to packaging and more specifically to the assembly together of packaging components to provide a package.
  • tray-like open-topped containers which can be conveniently moulded in plastics material, and which are usually closed by a thin transparent plastics film or membrane sealed across the open top to protect the product and help retain it within the container.
  • the package is completed by enclosing the tray-like container in a box formed of card material of suitable gauge which bears graphic material and which serves to provide protection for the relatively easily pierced membrane, and for the container and its contents generally.
  • card material of suitable gauge which bears graphic material and which serves to provide protection for the relatively easily pierced membrane, and for the container and its contents generally.
  • the present invention accordingly provides packaging comprising an open-topped container and a cover therefor, the open-topped container having a cross-sectional area which decreases from the free edge of its side wall structure down towards its floor, and the cover comprising a main panel shaped to overlie the open top of the container, with depending side wall or panel means which taper inwardly from the main panel.
  • the container and cover are then separable by tearing of the cover.
  • the cover can be prepared as a blank of card or other suitable sheet material, preferably with fold lines to define the side panels. Connection together of the side panels into the desired configuration can be effected by adhesive and/or by interengaging connection portions, for example, tab and slot formations.
  • the cover and tray can be held against relative movement by other means than the engagement of the cover panel configuration with the tray side walls, as by arranging for parts of the panel configuration to underlie an outwardly projecting rim of the container.
  • Adhesive can be used additionally or instead between the depending cover panels and the side walls of the tray, in particular where the cover is required to be sealed to the tray.
  • the invention thus also provides a sheet material blank for use in packaging having a central panel and side panels extending from the sides of the central portion, the side panels being arranged to be secured together, or to the side walls of a container to which the cover is applied, so that the free edges of the side panels enclose an area less than that of the central panel.
  • the open-topped container of the package of the invention can have a side wall structure which tapers inwardly from the free edge around the open top, as is convenient when the tray is moulded in a plastics material to facilitate release from the mould.
  • An inturned or out-turned rim may be provided, in particular to provide for the closure of the open top by means of a thin plastics film or membrane, and an out-turned rim can provide the necessary side wall configuration for retention of the cover.
  • the container can have any desired shape. Where it is shaped as a flat tray, the assembled package has an inverted frusto-pyramidal shape and packages can be stacked together on one edge so that the central panels of the covers are rearwardly inclined, to thereby display graphics material on the foremost cover, or the contents of the foremost package through a transparent panel portion.
  • the cover and the container can be readily assembled in accordance with the invention by relatively moving a blank for forming the cover and a tray, previously filled with its contents, so that the blank overlies the tray. Adhesive is then applied to the appropriate surfaces of the blank and the side panels of the blank are folded downwardly onto the tray and held until the adhesive sets.
  • the invention thus also provides a method of and a machine for assembling the package of the invention in which the container and the cover in the form of a blank are relatively positioned so that the blank overlies the container, and in which a folding operation is then performed to effect securement of the cover formed from the blank to the container.
  • adhesive is used to secure the side panels to each other and/or to the side wall of the container, the adhesive is of course applied to the appropriate surfaces before the folding operation begins.
  • the invention can provide for savings in the material of the cover, and for simple and consequently cost effective handling and assembly.
  • Figure 1 is a partial plan view of a blank for forming a cover for a package in accordance with the invention
  • Figure 2 is a partial cross-sectional side view of a container in the shape of a tray with which the cover of Figure 1 is to be assembled;
  • Figure 3 is a fragmentary side view of the cover of Figure 1 after assembly with the tray of Figure 2;
  • Figure 4 is a fragmentary underneath view of the package before assembly has been completed
  • Figure 5 is a view similar to that of Figure 2, but after assembly;
  • Figures 6A, 6B and 6C schematically illustrate, on a smaller scale, successive stages in the assembly of the package.
  • Figure 7 is a fragmentary view of a modified form of the cover of Figure 1.
  • the package illustrated in Figures 1-6 comprises a cover 1 and a tray 2 to which the cover is secured.
  • the cover is formed from the blank illustrated in Figure 1 which is made of card or other suitable sheet material.
  • the blank comprises a rectangular central panel 10 having side panels or flaps 11 extending from its longer sides, the side edges of the flaps converging away from the central panel. At least the central panel 10 will usually carry graphics material and may include a transparent central area.
  • the blank is scored or otherwise deformed to facilitate folding of the flaps 11 along the lines 12.
  • the shorter sides of the central panel portion also have adjoining end panels or flaps 14 provided with similar fold lines 15.
  • the end flaps 14 extend at their sides beyond the fold lines 12 by way of extension end flap portions 16 separated from the flaps 14 by fold lines 17 which converge away from the central panel 10.
  • Parallel perforations 20 or other lines of weakening extend at right angles from the free edge of one end flap 14, from small cut-outs at this edge which define between them a tab portion which can be pulled upwardly after the cover 1 has been assembled with the tray 2, to split the cover to permit access to the contents of the tray.
  • One or more of such weakening lines could be continued to the opposite free edge.
  • the tray 2 is moulded in plastics material to have a floor 25 and side and end walls 26 which diverge slightly outwardly and upwardly from the floor, to facilitate release of the tray from the mould in which it is formed. Seen in plan, the tray 2 has rounded corners 27 which are chamfered below, at 29. Hollow reinforcing ribs 30 formed along each side extend downwardly to the floor 25. The free edges of the walls 26 are formed as an out-turned rim 31.
  • the cover 1 is assembled with the tray 2 by folding down the four flaps 11,14, with each end flap portion 16 secured as by a suitable adhesive underneath the adjacent side flap 11, with the fold line 17 aligned with its side edge.
  • the structure then is of an inverted open topped box of which the flaps form the side walls which converge inwardly towards each other in frusto-pyramidal shape.
  • a cover in the form of a flat printed blank is fed from a stack 35 of such blanks, as shown in Figure 6A, so as to overlie a tray which has been filled with its contents and the open top of which has been sealed if required by a thin transparent plastics film.
  • the position is then as appears from the underneath view of Figure 4, with the rim 31 of the tray within the rectangle defined by the fold lines 12 and 15.
  • An appropriate quantity of a suitable adhesive is then applied to the upper surfaces of the flap end portions 16 and pressure is applied by assembly tools, as indicated by arrows 40 in Figure 6B, to fold these downwardly on the flaps 14, as these flaps are being folded downwardly also by pressure applied in the direction of the arrows 41.
  • the free edges of the flaps 14 engage the walls 26 of the tray at a position a little short of the floor 25, with the end flap portions 16 extending at rather less than right angles to the adjoining flaps.
  • the assembled package is then removed from operative adjacency to the assembly tools either by being conveyed laterally or by being raised above the next incoming cover blank from the stack 35 which will be assembled with another tray 2 in the manner just described.
  • thefree edges of the cover portion side walls formed by the flaps 11 and 14 engage the lower portions of the tray side walls 26, and because of the tapering of both sets of walls, the tray and cover are held securely together, without the possibility of relative movement, until the cover is torn open, as by use of the tab 22 and perforation lines 20.
  • a cover blank 100 although in other respects similar to the cover blank 1 has a central panel 101 with curved corners 102 corresponding to the curved corners 27 of the rim 31 of the tray 2.
  • the central portion 101 has adjoining side flaps 104 and end flaps 105 defined by fold lines 106 and 107 respectively.
  • the flaps 104 and 105 function similarly to the flaps 11 and 14 and have extension portions 114 and 115 which are spaced from the central panel 11 adjacent the corners 102. Fold lines separating the flaps 104 and 105 from the extension portions 114 and 115 are not provided.
  • the cover 100 is assembled with a tray 2 in a manner similar to that described for the cover 1, but at the position corresponding to that of Figure 6B, adhesive is applied to upper surfaces of the extension portions 115 and the flaps 105 are folded down and the extension portions are wrapped around the curved walls of the tray forming the corners 27.
  • the side wall flaps 104 are then similarly folded down and the extension portions 114 wrapped around the curved tray corner walls, to overlie the adhesive-carrying extension portions 115.
  • These positions of the extension portions 114 and 115, indicated in Figure 7 by broken lines 110, are maintained until the adhesive sets.
  • the spacing of the extension portions 114 and 115 from the main panel 101 allows them to engage the container wall beneath the rim 31.
  • the free edges of the cover flaps again engage the tray side walls 26 adjacent the floor 25, but the adhered flap extension portions 114,115 at each corner underlie the tray rim 31 to enhance the securement of the cover to the tray.
  • connection between the two extension portions 114 and 115 at the corners need not in this instance be effected by adhesive, but can be effected by interlocking tabs and slots, as the slight extension of the effective length of the connected flaps after release of the tension needed to effect the tab and slot connection is not objectionable, because of the engagement of the connected flap portions underneath the tray rim 31.
  • the invention relates to packaging and more specifically to the assembly together of packaging components to provide a package.
  • tray-like open-topped containers which can be conveniently moulded in plastics material, and which are usually closed by a thin transparent plastics film or membrane sealed across the open top to protect the product and help retain it within the container.
  • the package is completed by enclosing the tray-like container in a box formed of card material of suitable gauge which bears graphic material and which serves to provide protection for the relatively easily pierced membrane, and for the container and its contents generally.
  • card material of suitable gauge which bears graphic material and which serves to provide protection for the relatively easily pierced membrane, and for the container and its contents generally.
  • the present invention accordingly provides packaging comprising an open-topped container and a cover therefor, the open-topped container having a cross-sectional area which decreases from the free edge of its side wall structure down towards its floor, and the cover comprising a main panel shaped to overlie the open top of the container, with depending side wall or panel means which taper inwardly from the main panel.
  • the container and cover are then separable by tearing of the cover.
  • the cover can be prepared as a blank of card or other suitable sheet material, preferably with fold lines to define the side panels. Connection together of the side panels into the desired configuration can be effected by adhesive and/or by interengaging connection portions, for example, tab and slot formations.
  • the cover and tray can be held against relative movement by other means than the engagement of the cover panel configuration with the tray side walls, as by arranging for parts of the panel configuration to underlie an outwardly projecting rim of the container.
  • Adhesive can be used additionally or instead between the depending cover panels and the side walls of the tray, in particular where the cover is required to be sealed to the tray.
  • the invention thus also provides a sheet material blank for use in packaging having a central panel and side panels extending from the sides of the central portion, the side panels being arranged to be secured together, or to the side walls of a container to which the cover is applied, so that the free edges of the side panels enclose an area less than that of the central panel.
  • the open-topped container of the package of the invention can have a side wall structure which tapers inwardly from the free edge around the open top, as is convenient when the tray is moulded in a plastics material to facilitate release from the mould.
  • An inturned or out-turned rim may be provided, in particular to provide for the closure of the open top by means of a thin plastics film or membrane, and an out-turned rim can provide the necessary side wall configuration for retention of the cover.
  • the container can have any desired shape. Where it is shaped as a flat tray, the assembled package has an inverted frusto-pyramidal shape and packages can be stacked together on one edge so that the central panels of the covers are rearwardly inclined, to thereby display graphics material on the foremost cover, or the contents of the foremost package through a transparent panel portion.
  • the cover and the container can be readily assembled in accordance with the invention by relatively moving a blank for forming the cover and a tray, previously filled with its contents, so that the blank overlies the tray. Adhesive is then applied to the appropriate surfaces of the blank and the side panels of the blank are folded downwardly onto the tray and held until the adhesive sets.
  • the invention thus also provides a method of and a machine for assembling the package of the invention in which the container and the cover in the form of a blank are relatively positioned so that the blank overlies the container, and in which a folding operation is then performed to effect securement of the cover formed from the blank to the container.
  • adhesive is used to secure the side panels to each other and/or to the side wall of the container, the adhesive is of course applied to the appropriate surfaces before the folding operation begins.
  • the invention can provide for savings in the material of the cover, and for simple and consequently cost effective handling and assembly.
  • Figure 1 is a partial plan view of a blank for forming a cover for a package in accordance with the invention
  • Figure 2 is a partial cross-sectional side view of a container in the shape of a tray with which the cover of Figure 1 is to be assembled;
  • Figure 3 is a fragmentary side view of the cover of Figure 1 after assembly with the tray of Figure 2;
  • Figure 4 is a fragmentary underneath view of the package before assembly has been completed
  • Figure 5 is a view similar to that of Figure 2, but after assembly;
  • Figures 6A, 6B and 6C schematically illustrate, on a smaller scale, successive stages in the assembly of the package.
  • Figure 7 is a fragmentary view of a modified form of the cover of Figure 1.
  • the package illustrated in Figures 1-6 comprises a cover 1 and a tray 2 to which the cover is secured.
  • the cover is formed from the blank illustrated in Figure 1 which is made of card or other suitable sheet material.
  • the blank comprises a rectangular central panel 10 having side panels or flaps 11 extending from its longer sides, the side edges of the flaps converging away from the central panel. At least the central panel 10 will usually carry graphics material and may include a transparent central area.
  • the blank is scored or otherwise deformed to facilitate folding of the flaps 11 along the lines 12.
  • the shorter sides of the central panel portion also have adjoining end panels or flaps 14 provided with similar fold lines 15.
  • the end flaps 14 extend at their sides beyond the fold lines 12 by way of extension end flap portions 16 separated from the flaps 14 by fold lines 17 which converge away from the central panel 10.
  • Parallel perforations 20 or other lines of weakening extend at right angles from the free edge of one end flap 14, from small cut-outs at this edge which define between them a tab portion which can be pulled upwardly after the cover 1 has been assembled with the tray 2, to split the cover to permit access to the contents of the tray.
  • One or more of such weakening lines could be continued to the opposite free edge.
  • the tray 2 is moulded in plastics material to have a floor 25 and side and end walls 26 which diverge slightly outwardly and upwardly from the floor, to facilitate release of the tray from the mould in which it is formed. Seen in plan, the tray 2 has rounded corners 27 which are chamfered below, at 29. Hollow reinforcing ribs 30 formed along each side extend downwardly to the floor 25. The free edges of the walls 26 are formed as an out-turned rim 31.
  • the cover 1 is assembled with the tray 2 by folding down the four flaps 11,14, with each end flap portion 16 secured as by a suitable adhesive underneath the adjacent side flap 11, with the fold line 17 aligned with its side edge.
  • the structure then is of an inverted open topped box of which the flaps form the side walls which converge inwardly towards each other in frusto-pyramidal shape.
  • a cover in the form of a flat printed blank is fed from a stack 35 of such blanks, as shown in Figure 6A, so as to overlie a tray which has been filled with its contents and the open top of which has been sealed if required by a thin transparent plastics film.
  • the position is then as appears from the underneath view of Figure 4, with the rim 31 of the tray within the rectangle defined by the fold lines 12 and 15.
  • An appropriate quantity of a suitable adhesive is then applied to the upper surfaces of the flap end portions 16 and pressure is applied by assembly tools, as indicated by arrows 40 in Figure 6B, to fold these downwardly on the flaps 14, as these flaps are being folded downwardly also by pressure applied in the direction of the arrows 41.
  • the free edges of the flaps 14 engage the walls 26 of the tray at a position a little short of the floor 25, with the end flap portions 16 extending at rather less than right angles to the adjoining flaps.
  • the assembled package is then removed from operative adjacency to the assembly tools either by being conveyed laterally or by being raised above the next incoming cover blank from the stack 35 which will be assembled with another tray 2 in the manner just described.
  • the free edges of the cover portion side walls formed by the flaps 11 and 14 engage the lower portions of the tray side walls 26, and because of the tapering of both sets of walls, the tray and cover are held securely together, without the possibility of relative movement, until the cover is torn open, as by use of the tab 22 and perforation lines 20.
  • a cover blank 100 although in other respects similar to the cover blank 1 has a central panel 101 with curved corners 102 corresponding to the curved corners 27 of the rim 31 of the tray 2.
  • the central portion 101 has adjoining side flaps 104 and end flaps 105 defined by fold lines 106 and 107 respectively.
  • the flaps 104 and 105 function similarly to the flaps 11 and 14 and have extension portions 114 and 115 which are spaced from the central panel 11 adjacent the corners 102. Fold lines separating the flaps 104 and 105 from the extension portions 114 and 115 are not provided.
  • the cover 100 is assembled with a tray 2 in a manner similar to that described for the cover 1, but at the position corresponding to that of Figure 6B, adhesive is applied to upper surfaces of the extension portions 115 and the flaps 105 are folded down and the extension portions are wrapped around the curved walls of the tray forming the corners 27.
  • the side wall flaps 104 are then similarly folded down and the extension portions 114 wrapped around the curved tray corner walls, to overlie the adhesive-carrying extension portions 115.
  • These positions of the extension portions 114 and 115, indicated in Figure 7 by broken lines 110, are maintained until the adhesive sets.
  • the spacing of the extension portions 114 and 115 from the main panel 101 allows them to engage the container wall beneath the rim 31.

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Abstract

Un emballage comprend un récipient (2) ouvert par le haut avec des parois latérales (26) qui convergent vers le bas jusqu'à un fond (25) et un couvercle (1), formé d'une ébauche composée d'un panneau principal (10; 101) qui passe sur l'ouverture supérieure du récipient et de panneaux latéraux (11, 14; 104, 105) avec des extensions latérales (16; 114, 15) qui relient entre eux les panneaux latéraux de façon à les faire converger vers le bas, en s'éloignant du panneau principal, et à les rendre inséparables du récipient sans que l'on déchire le couverle.
PCT/GB1989/000502 1988-04-29 1989-04-27 Emballage WO1989010314A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8810220.7 1988-04-29
GB888810220A GB8810220D0 (en) 1988-04-29 1988-04-29 Packaging

Publications (1)

Publication Number Publication Date
WO1989010314A1 true WO1989010314A1 (fr) 1989-11-02

Family

ID=10636127

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB1989/000502 WO1989010314A1 (fr) 1988-04-29 1989-04-27 Emballage

Country Status (5)

Country Link
EP (1) EP0374216A1 (fr)
JP (1) JPH03500041A (fr)
AU (1) AU3556489A (fr)
GB (1) GB8810220D0 (fr)
WO (1) WO1989010314A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2255550A (en) * 1991-04-06 1992-11-11 Madison Packaging Limited Pack

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0513925U (ja) * 1991-02-15 1993-02-23 本州製紙株式会社 包装箱

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3580478A (en) * 1969-07-24 1971-05-25 Robert P Bemiss Packaging
FR2078747A5 (fr) * 1970-02-19 1971-11-05 Robinson E S & A Ltd
FR2572055A1 (fr) * 1984-10-19 1986-04-25 Oriol Jean Emballage du type boite couvercle en matiere plastique avec au moins un etiquetage sur ses flancs
DE8711315U1 (de) * 1987-08-20 1988-03-17 Orbke, Ilse, 4800 Bielefeld Schalendeckel

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3580478A (en) * 1969-07-24 1971-05-25 Robert P Bemiss Packaging
FR2078747A5 (fr) * 1970-02-19 1971-11-05 Robinson E S & A Ltd
FR2572055A1 (fr) * 1984-10-19 1986-04-25 Oriol Jean Emballage du type boite couvercle en matiere plastique avec au moins un etiquetage sur ses flancs
DE8711315U1 (de) * 1987-08-20 1988-03-17 Orbke, Ilse, 4800 Bielefeld Schalendeckel

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2255550A (en) * 1991-04-06 1992-11-11 Madison Packaging Limited Pack

Also Published As

Publication number Publication date
JPH03500041A (ja) 1991-01-10
EP0374216A1 (fr) 1990-06-27
GB8810220D0 (en) 1988-06-02
AU3556489A (en) 1989-11-24

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