EP1311435A2 - Caisse d'emballage - Google Patents

Caisse d'emballage

Info

Publication number
EP1311435A2
EP1311435A2 EP01950186A EP01950186A EP1311435A2 EP 1311435 A2 EP1311435 A2 EP 1311435A2 EP 01950186 A EP01950186 A EP 01950186A EP 01950186 A EP01950186 A EP 01950186A EP 1311435 A2 EP1311435 A2 EP 1311435A2
Authority
EP
European Patent Office
Prior art keywords
folding
folded
case
lid
field
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Withdrawn
Application number
EP01950186A
Other languages
German (de)
English (en)
Inventor
Olav Haugan
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Smurfit Norpapp AS
Original Assignee
Smurfit Norpapp AS
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
Priority claimed from SE0002745A external-priority patent/SE0002745D0/xx
Priority claimed from SE0100216A external-priority patent/SE0100216D0/xx
Application filed by Smurfit Norpapp AS filed Critical Smurfit Norpapp AS
Publication of EP1311435A2 publication Critical patent/EP1311435A2/fr
Withdrawn legal-status Critical Current

Links

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
    • B65D5/20—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 by folding-up portions connected to a central panel from all sides to form a container body, e.g. of tray-like form
    • B65D5/24—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 by folding-up portions connected to a central panel from all sides to form a container body, e.g. of tray-like form with adjacent sides interconnected by gusset folds
    • B65D5/248—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 by folding-up portions connected to a central panel from all sides to form a container body, e.g. of tray-like form with adjacent sides interconnected by gusset folds and at least one side being extended and doubled-over to enclose the adjacent gusset flaps
    • 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
    • B65D5/4204—Inspection openings or windows
    • 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
    • B65D5/4279—Joints, seams, leakproof joints or corners, special connections between panels
    • B65D5/4283—Connections formed by separate elements, e.g. clips, bands, straps
    • B65D5/4287—Connections formed by separate elements, e.g. clips, bands, straps the container being formed by folding-up portions connected to a central panel from all sides, adjacent sides being interconnected by gusset folds and the container being maintained in erected condition by means of the separate connectors coacting with the gusset folds
    • 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
    • B65D5/4295—Ventilating arrangements, e.g. openings, space elements
    • 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
    • B65D5/44—Integral, inserted or attached portions forming internal or external fittings
    • B65D5/46—Handles
    • B65D5/46008—Handles formed separately from the container body
    • 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
    • B65D5/44—Integral, inserted or attached portions forming internal or external fittings
    • B65D5/46—Handles
    • B65D5/46072—Handles integral with the container
    • B65D5/4612—Handles integral with the container formed by extensions of side flaps or by side flaps of a container formed by folding-up portions connected to a central panel from all sides
    • 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
    • B65D5/68—Telescope flanged lids

Definitions

  • case is in this connection meant a trough-like bottom portion with or without a lid as well as only a lid separately.
  • the invention particularly relates to cases for food products, particularly fresh fish, e.g. salmon from salmon breedings.
  • Such cases have so far been made of materials, which can resist moisture, i.e. wood, metals or plastic materials.
  • none of these materials can without special considerations and construction measures be regarded as harmless to the environment and sanitary, since it is inherent in the nature of these materials, that a recycling ought to be realized due to economic and other reasons.
  • a recycling is a very lengthy, time consuming and expensive procedure, since the relatively expensive starting product must be subjected to a reliable cleaning, control and possibly repair work as well as a returning to the starting point. Consequently a recycling is not considered in praxis.
  • the object of the present invention is to, by using a manufacturing material, which is particularly suitable for an one-way use, further develop already known cases and cardboard-like constructions, in order to make them meet relatively high stability and sanitation requirements, make them heat insulating against the environment, make them allow a relatively simple and economic production, and let finished, prepared blanks be transformed to useful cases in a convenient, simple and quick way, e.g. in a filling station, let the handling of the cases be carried out in an advantageous way, e.g. in ergonomical respects, as well as let the disassembly for recycling purposes be carried out simply and expeditiously.
  • Another object of the invention is to develop an optimally functioning lid, when a lid for the case is needed.
  • Fig. 1 a perspective view from above of a first embodiment of a finished case according to the invention ;
  • Fig. 2 a perspective view from below of the case according to Fig. 1 ;
  • Figs. 3 and 4 views similar to Fig. 1 of the same case in production and disassembly phases ;
  • Fig. 5 a planar view of already punched and grooved respectively plane blanks for a case according to Figs. 1-4 ;
  • Figs. 6 and 7 views similar to Figs. 1 and 2 of a second embodiment of a finished case according to the invention ;
  • Fig. 8 a planar view of an already punched and grooved respectively plane blank for a case according to Figs. 6 and 7 ;
  • Fig. 9 a planar view of the interior of an already punched and grooved respectively blank for a lid according to the invention for any of the possible case embodiments ;
  • Figs. 10 and 11 respectively cross sectional views of a corrugated cardboard material for case designs and lid designs respectively ;
  • Fig. 12 a planar view from below/from the interior of a modified alternative lid according to the invention ;
  • Figs. 13 and 14 perspective views from below and from above respectively of the lid according to
  • Figs. 15 and 16 perspective views from below and from above respectively of the lid according to
  • Fig. 17 a perspective view from above of a lid according to Fig. 9 and 13,14 respectively, mounted on a case according to any of the possible designs ;
  • Fig. 18 a planar view of a blank for an additional embodiment of a case according to the invention as well as a few detailed views showing a few phases of the manufacturing process ;
  • Fig. 19 a perspective view from above of an additional embodiment of a case according to the invention with a mounted and secured lid ;
  • Fig. 20 a corresponding view of the same case with an upwardly folded lid section;
  • Fig. 21 a planar view of a blank for a lid according to Figs. 19 and 20 ;
  • Fig. 22 a perspective view from below of a case made of a blank according to Fig. 19 ;
  • Fig. 23 a perspective view from above of a case according to Fig. 22 ;
  • Fig. 24 a planar view of a blank for an additional case design according to the invention .
  • Fig. 25 a perspective view from below of a case made of a blank according to Fig. 24 ;
  • Fig. 26 a perspective view from above of a case according to Fig. 25.
  • a case design is shown it its entirety, whereas in Figs. 6 and 8 a case design 1 ' is shown in its entirety.
  • the two designs are substantially identical or similar, and thus the same reference numerals are used for both, but a prime sign is added for the second case design.
  • corrugated cardboard is a preferred manufacturing material, and this material is also preferred, when a lid 2 is manufactured, which suitably comprises a plain corrugated cardboard 3, i.e. a corrugated paper layer 4, which on its two sides is coated with a plane paper layer 5 and 6 respectively, preferably with a very thin plastic layer 7 and 8 respectively as a vapor barrier between layer 4 and layer 5 and 6 respectively.
  • Corrugated cardboard 9 for the case suitably is double, i.e. to a plane, preferably on at least one side plastic-coated paper layer 10, corrugated paper layers 11 and 12 respectively are applied on both sides, to which in their turn outer paper layers 13 and 14 respectively , preferably with intermediate thin plastic layers 15 and 16 respectively as a vapor barrier, are applied.
  • the paper layers preferably have a thickness of about 20 ⁇ m and the plastic layers, suitably made of polyethylene, preferably have a thickness of about 15 ⁇ m.
  • Corrugated cardboard materials of this type are particularly suitable for recycling purposes and for direct contact with food products and are very strong and shape permanent as well as can resist moisture for a relatively long time without loosing the main part of its strength. Also they have very satisfactory heat insulating properties.
  • case of course is in this connection to include a case with a lid or without a lid.
  • the case design according to Figs. 1-5 comprises a loose handle element 17, which according to Figs. 6-8 is made integral with the respective case blank, with reference number 17'.
  • Figs. 5 and 8 show, that the blanks for a case according to the invention include a central rectangular field 18 and 18' respectively, to which via folding notches 19 and 19' respectively and 20 and 20' respectively on e.g. inner side 21 and 21 ' respectively upwardly tiltable side walls 22 and 22' respectively and 23 and 23 ' respectively are attached.
  • end walls 26 and 26' respectively and 27 and 27' respectively are via folding notches 24 and 24' respectively and 25 and 25' respectively attached to the other two sides.
  • corner areas between walls adjacent to each other are filled up within the framework of a rectangular shape for the entire blank with folding lugs 28 and 28' respectively, 29 and 29' respectively, 30 and 30' respectively, 31 and 31 ' respectively, 32 and 32' respectively, 33 and 33' respectively , 34 and 34' respectively and 35 and 35' respectively.
  • Folding notches 36 and 36' respectively, 37 and 37' respectively, 38 and 38' respectively, 39 and 39' respectively, 40 and 40' respectively, 41 and 41' respectively, 42 and 42' respectively and 43 and 43' respectively , also positioned on the inner side, will then facilitate a folding of said lugs towards the adjacent wall sides, whereas roughly diagonally between each pair of lugs outwardly directed folding notches 44 and 44' respectively, 45 and 45 'respectively, 46 and 46' respectively and 47 and 47' respectively form a hypotenuse for each lug and separate the two lugs between themselves.
  • the last-mentioned folding notches start in the comer point between the central field and two walls, adjacent to each other, but they end on the end wall side a few millimeters or a few centimeters from the outer comer point of the blank, which i.a. results in a folding shape having truncated comers, as is shown in Fig. 3.
  • the folding notches mentioned above and below are every type of measure, which facilitates a folding.
  • folding notches 24, 36, 38 and 25, 40, 42 and 24', 36', 38' and 25', 40', 42' respectively preferably are located along a folding line
  • folding notches 37 and 41 and 39 and 43 respectively tilt according to a preferred embodiment inwards towards the center of the respective end wall with an angle of 1-10°, preferably about 4°.
  • side walls 22, 23 and 22', 23' slightly tilt inwards towards the inlet opening of the case, which in its turn results in, that a lid will have a slightly larger play, when it is applied to the case and can be applied with a certain press fit during this final application phase respectively.
  • products in the case will be kept there with a slightly improved security.
  • folding notches 36 and 38 and 40 and 42 respectively tilt to the corresponding extent towards the center of side walls 22,23 and 22', 23' respectively.
  • the lug pairs are folded or left, when the walls are folded upwards to obtain a border shape, outside the walls and are then in their folded shape folded to abut the end walls (see Fig. 3). Then it is possible to use the truncated comer areas like levers, the side walls and the end walls being forcefully pressed against each other and possibly also somewhat into the material, which they are made of, in the final folding phase, which initially is shown in the upper right comer in Fig. 3 and finally in the uppermost comer in Fig. 3.
  • the finished, completely folded case (see the uppermost comer in Fig. 3) will then be supplemented to make it portable by attaching loose handle elements 17 having a width, which corresponds to the width of the end walls, and consisting of three fields, namely one field 52 for e.g. gluing the handle elements onto the inner side of the end walls, one field 53 for bridging the total thickness of the end walls and the lug pairs, folded against the end walls, and which lug pairs can be glued onto each other and/or onto the end walls, the latter however preferably being avoided, and one field 54 for gluing in preferably only two points on the outer side of lugs 28 and 30 and 34 and 34 respectively .
  • one field 52 for e.g. gluing the handle elements onto the inner side of the end walls
  • one field 53 for bridging the total thickness of the end walls and the lug pairs, folded against the end walls, and which lug pairs can be glued onto each other and/or onto the end walls, the latter however preferably being avoided
  • Field 54 has along its free longitudinal edge a central, substantially trapezoidal recess 55 with a tongue 56, inserted into the innermost portion of the recess.
  • This tongue extends in the longitudinal direction parallel to central field 18, which is tantamount to the bottom of the case, and is attached to field 54 solely via a longitudinal side, which initially is formed by a folding notch 57 on the side facing the end wall.
  • the tongue is folded inwards against the end wall at an angle of about 90° and is supported in its inwardly folded position with its short sides also by the obliquely downwardly directed double- folded edges of the lug pairs. Thanks to the double-folded lug pairs there is also a certain space between field 52 and the respective end wall, and thus, it is easier to hold the case within this area.
  • the inherent elasticity of the lug pairs is also conducive to the maintenance of a space, which is slightly larger than the above-mentioned space due to a budging caused by the elasticity of the material and the structure, and consequently the tongue can be made slightly wider than the total thickness of the end wall and the lug pair and satisfactory gripping features can be obtained at minimal costs, the end walls simultaneously being pressed against the side walls.
  • Handle element 17 suitably is made of a strong cardboard material, which will protect and reinforce the sensitive fastening areas of the case in an optimal way.
  • the folding notches of the handle element and possibly of the case blank suitably are supplemented by embossings, which consequently on the side, which faces e.g. the grooves as folding notches, becomes elevated, an advantageous hinge-like effect being promoted. Since said folding notch tiltings result in, that the upper edges of the double-folded lug pairs extend slightly obliquely towards the center of the end walls, an advantageous effect of the handle elements resides in the fact, that they completely conceal such oblique extensions.
  • Fig. 4 indicates, that the recycling will be rather simple, since the glue fastening of the outer handle element field can be torn apart manually or by means of a tool and then the case blank can be unfolded in order to obtain a plane blank shape, the handle element remaining, fastened to the inner side of the end walls, or it is also possible to tear apart this connection in order to recover the handle elements separately.
  • Case design 1 ' differ from case designl, described above, only to the extent, that handle elements 17' are integral parts of the case blank, the end walls, fastening fields 52 being eliminated, via folding notches merging into fields 53' and 54'. A certain small waste in the comer areas between the lugs and the handle element results in this way.
  • the wave shape is in this case suitably parallel to the side walls, whereas in the former case it preferably extends at right angles to these walls, as the drawings show.
  • Lid 2 has a central rectangular field 58, which is slightly larger than the outer dimensions of case 1 and case 1 ' respectively.
  • Border parts 63, 64, 65, 66 are via folding notches 59, 60, 61, 62 positioned adjacent this field, which border parts between themselves in the comer areas via folding notches 67, 68, 69, 70, 71, 72, 73, 74 include lugs 75, 76, 77, 78, 79, 80, 81, 82 , which by means of diagonal folding notches 83, 84, 85, 86 in pairs are separated from each other.
  • the free outer edges of the lugs are slightly oblique inwards, seen from the border part, from which the edges project, an obliquely, downwardly, towards field 58 directed extension of the free edges of the lugs being formed , when the lug pairs are folded. Thanks to this incline flaps 102, 103, adjacent to the side border parts via double-folding notches 104, 105 will not be stretched too much away from said side border parts, against which the flaps will abut from within.
  • Short rectangular projections 87, 88, 89, 90 will in this way be forced into the side edge areas of field 58, which on the inner side 91 are provided with flat recesses 92, 93, 94, 95, which suitably are cut into only the innermost paper layer.
  • the projections are hooked there behind sections, comprising the inner longitudinal edges of the recesses, and consequently lock the flaps in their inwardly folded positions with the double-folded lugs between themselves and the side border parts.
  • the wave shape suitably extends at right angles to the flaps.
  • the border parts on the end wall sides are at their free longitudinal edges provided with cuts 96,97, which converge towards the central field, and between the inner ends of said cuts double-folding notches 98, 99 extend.
  • trapezoidal locking flaps 100, 101 are formed, which are folded inwards and downwards subsequent to the folding upwards of the border parts in order to with their points be directed towards the end areas of the side wall border parts and lock them in their positions.
  • a double-function is obtained in this way, since the end wall border parts within the areas, cut out in this way, open the access to the handle elements of the case design and form gripping elements jointly with them respectively.
  • gripping elements are always active for the case but also for the lid, provided the case and the lid applied on the case, are fastened to each other, e.g. by surrounding them with locking tape or the like.
  • the open side of the case can be provided with an e.g. film-like closure, preferably with a possibility to reclose it or with special means, designed for this purpose, e.g. a "window" in the film, which is overlapped by a film having self-adhesive edges. It is also possible to provide the lid with such a "window”. Is it not desirable to be able to reclose the closure; it never the less may be desirable to define the "window" by means of a so called tear tape. In this way products and supplements to them, e.g. ice and water respectively, can be introduced into and be removed from respectively the case according to desires. If the case will be used to keep e.g. fish, it is suitable to place a liquid-absorbing layer at the bottom of the case.
  • a lid 2' which primarily is designed for cases as air-freight to foreign countries, often with a warm climate, is shown in Fig. 12.
  • the lid has a central field 58' and side walls 63', 64' and end walls 65', 66' respectively, attached to it via folding notches, 59', 60' and 61 ', 62' respectively.
  • Lugs 106, 107, 108, 109 are attached to the short sides of the end walls via folding notches 67', 69', 71 ', 73 ' , gaps 110, 111, 112, 113 being provided between them and the intermediate end walls by allowing the short sides of the latter converge outwards and/or by slightly displacing the sides of the former, which are exposed to these short sides, and in relation to the folding notches of the side walls.
  • the folding notches of the lugs suitably are slightly displaced towards each other in relation to the folding notches of the end walls
  • Such a lid blank is formed to a lid by folding the lugs 90° in relation to the corresponding side walls, and the latter are folded 90° in relation to the central field. Subsequently the end walls are folded and will abut against and be fastened by gluing and/or stapling to the lugs.
  • it is suitable to unfold the lid blank which is possible according to the invention without tearing apart the connection between the lugs and the end walls.
  • folding notches 114, 115, 116, 117 in the side walls start from the inner end of said gaps at an angle of 45° in relation to the outer edges of the side walls, defining folding notches all the way to the free longitudinal edges of the side walls. In this way it is possible, by one folding around said folding notches and another along the folding notches belonging to the short sides of the side walls, to unfold the blanks without tearing apart any connections, even if double-foldings exist.
  • Field 58' is in its center provided with two transverse cuts 118,119, which are made up to their closed shapes by means of partly a tear tape 120 between some of the cut end areas and partly a folding notch 121 between the rest of the ends in order to obtain a hinged cover 122.
  • the tear tape is interrupted in the center by a locking tongue 123, turned away from the folding notch and cut out from field 58' at the sides and at its free end and having preferably slightly bulging side edges in order to form additional retaining means.
  • the shoulder area of the locking tongue is formed by a folding notch 124, which facilitates the folding of the locking tongue in order to allow it to be inserted into a locking hole 125, already described.
  • the tear tape preferably is applied uninterrupted along the entire lid blank in connection with the manufacture of the material for the blank or when the treatment of the blank is continued.
  • cuts 118, 119 are made through the blank and also when the locking tongue is punched, these cuts penetrate the tear tape.
  • gripping ears 126,127 are arranged around the tear tape ; the tear tape parts between the cuts and the locking tongue can be gripped and removed by means of the gripping ears.
  • This pad has below cover 122 a slightly smaller U-cut 129, a smaller inner cover 130 being formed, the base line (folding notch) of which comprises e.g. a double or triple groove 131, which coincides with the folding notch of the outer cover.
  • the spacer pad comprises around the inner cover a shoulder step 132 for the outer cover to prevent, that the two covers will be pressed into the interior of the lid.
  • the spacer pad is also designed to have heat insulation, shock absorption and possibly supplementary moisture isolation properties.
  • the sides do not need this, since several walls and lugs etc. overlap each other. In this way a high and valuable heat, shock and possibly moisture isolation in the area of the entire lid is obtained , despite cost advantages obtained by manufacturing the lid of plain cardboard.
  • Such a lid according to the invention may weigh only about 1-1.5 kg and hold 20-25 kg fish. We have found, that the stability, life, sanitary quality, simple and economic production as well as disassembly for recycling come up to high expectations.
  • corrugated cardboard as a manufacturing material can be completely or partially replaced by non-corrugated paper board and/or a plastic material and/or a metal, and yet the typical corrugated cardboard structure may be retained.
  • the folding lug pairs can of course be formed as to dimensions and design in such a way, that they form apart of the gripping elements in connection with the handles.
  • transverse through drainage holes preferably arranged within the lower comer area of the end walls, which are used as outlets for melted ice, if the case is to be used as a fish case, which contains ice primarily for road and sea transport.
  • These holes are made preferably by providing the e.g. double-corrugated cardboard material with punched holes. Then finger-like nozzles are inserted into the holes, in a machine, which folds and glues the bottom blanks to their finished shape, according to Fig. 18a, until a stop flange on the nozzles abuts the wall material, which surrounds the holes.
  • the nozzles have then with their points penetrated the holes and ended up with outlet openings for melted adhesive roughly in the middle of the depth of the hole.
  • Adhesive is introduced and simultaneously the nozzles are rotated.
  • a die is now driven towards the side, which is turned away from the nozzles, against and around the nozzle points and against the wall material around the holes, which material is forcefully compressed between the die and nozzle flange.
  • the introduced melted adhesive penetrates and is pressed into the material around the holes and solidifies immediately, a sealing of the hole wall being obtained, which stops water from penetrating into the wall material and softening it (see Fig. 18b).
  • the lid according to Fig. 19, which preferably is combined with a case according to Figs. 1-17, is particularly suitable for airplane transport, when drainage of melted ice is not suitable and instead an absorber, known per se, for melted ice, is positioned at the bottom of the case.
  • an absorber known per se
  • a subsequent so called icing up i.e. that somewhere along the way from a filling station to the receiver ice is filled, is considered important.
  • a lid is provided according to the invention, mainly corresponding to one or several of the already described/shown embodiments, in wliich however the longitudinal border sides of the lid, suitably at a small distance from one of the end walls, are slotted all the way to the main plane of the lid, e.g. parallel to said end wall.
  • This slotting is done in connection with the punching, grooving, perforating or the like of the lid blank, suitably also a downwardly open recess being done in the two end walls, which facilitates the gripping of the lid and the case in their handle elements at about the same level and which leaves free a field on the end walls of the case for e.g. labels or the like.
  • the field which constitutes the main plane of the lid, is provided between the two adjacent slotting ends with grooves, perforations or the like , a hinge action being allowed.
  • a lid blank is provided according to Fig. 21 in its plane condition with a protective tape along the two elongated sides, i.e. a tape strip covers e.g. a centimeter or two along the inner side and the outer side and consequently covers the moisture sensitive underside.
  • a protective tape along the two elongated sides
  • a tape strip covers e.g. a centimeter or two along the inner side and the outer side and consequently covers the moisture sensitive underside.
  • gripping holes in the inner corners of the outer comer lugs.
  • the lid When the protective tape has been applied, the lid is folded and glued, stapled or the like to obtain its finished shape according to Fig. 19. Said cut is then not functioning and a strapping or the like is stretched around the lid, applied on the case, straight above the section, wliich extends from the adjacent end wall and all the way to said "hinge line" (see Fig. 19). If an icing up, an inspection or the like is required, the strapping is displaced towards and past said hinge line and the protective tape is split along the cuts and then the detached cover can be lifted up towards the main field of the lid, and an inspection, an icing up, possibly a limited product removal and the like can be done (see Fig. 20). A reclosure is done by lowering the lid and pushing back the strapping to its original position, which consequently will keep the cover in place and keep the lid and the case together, a very advantageous double function being achieved.
  • Figs. 19 and 20 show, that strappings suitably can be placed around the two ends of finished packs. It is of course possible to arrange said covers at both lid ends. It is also possible to form such covers by means of a cutting or a tearing element, which runs substantially in a central position straight across the main field of the lid and which continues straight through the borders or step wise through the folding notch between the borders and the main field and through the borders to obtain foldable lugs. Such a design is advantageous, since one or both end covers of the lid can be kept in place, until the contents of the pack has been removed or even subsequent to such a removal.
  • One or both main fields of the lid and the "central covers", formed by the adjacent border parts, can then as a matter of choice be opened up, possibly with a preceding folding of said lugs, in order to prevent, that the border parts will stop an opening up.
  • One of several additional strappings, adhesive tape pieces or the like can be used to keep the covers in place after an opening up and a closing back, and then the lowering of said border lugs can also contribute to a durable reclosure.
  • the "end covers” or the "central covers” can also allow access to divided compartments in a case, e.g. one compartment for only ice.
  • a protective tape can also cover the cuts, since it is easy, in a later phase, to divide the tape along the cuts. Before the tape is divided, it has a protective as well as uniting action.
  • an adhesive tape which can be reapplied , provided a suitable surface for this purpose is available, e.g. an underlying smooth surface having a suitable adhesion and release ability.
  • Fig. 24 is particularly suitable for an automatic mechanical transformation to an upwardly folded lid.
  • an end wall side is included on each short side of the blank, the side edges (folding notches) of the end wall side including a smaller angle then 90°, preferably 86°, in relation to the base side, which also is a folding notch.
  • the two longitudinal sides are folded upwards in relation to the central field, which constitutes the bottom, e.g. about 70°, which is considered sufficient.
  • the folding lines between said comer triangles will force them to fold with their hypotenuses outwards, particularly around the central field, and the end walls will be kept in place on a plane support surface.
  • the comer lugs will always automatically pivot about said folding notch, which is less than 90° in relation to the base line, and turn towards the outer side of the end walls, to wliich they will later be attached in any of the ways already described in this text.
  • At least the longitudinal sides will, thanks to the described and shown design, slightly tilt inwards, which facilitates the mounting of a possible lid and stabilizes the construction even more. It is shown in Figs.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Cartons (AREA)

Abstract

La présente invention concerne une caisse d'emballage (1') munie ou non d'un couvercle (2) et réalisée essentiellement à partir d'une découpe plane, comportant une zone centrale rectangulaire (18; 18'), à laquelle sont fixées respectivement, par l'intermédiaire d'encoches de pliage (19; 19' et 20' et 24; 24' et 25, 25' respectivement), disposées sur le côté intérieur (21; 21'), des parois latérales repliables vers le haut (22; 22' 23; 23') et des parois d'extrémité (26; 26' et 27; 27'), tandis que les zones d'angle entre les parois adjacentes l'une à l'autre sont pourvues de pattes rabattables (28; 28', 29; 29', 30; 30', 31; 31', 32; 32', 33; 33', 34; 34', 35; 35') lesquelles sont mutuellement séparées deux à deux par des moyens d'encoches de pliage sensiblement orientées vers l'extérieur (44; 44', 45; 45', 46; 46', 47; 47'), destinées à être repliées deux à deux afin d'abouter une paroi adjacente et d'y être fixées. Selon l'invention, les paires de pattes rabattables sont repliées à l'extérieur d'une paroi d'extrémité adjacente et un élément de manche (17; 17') est replié autour de ladite paroi d'extrémité afin d'exercer une action de pression des deux parois adjacentes l'une sur l'autre et en les rapprochant l'une vers l'autre, les paires de pattes rabattables étant repliées en éloignement étant ainsi emprisonnées, et l'élément de manche est fixé à l'extérieur desdites paires de pattes rabattables, leur épaisseur totale, leur élasticité inhérente et leur distance de séparation mutuelle servant à procurer une profondeur accrue de préhension et d'obtenir des moyens de préhension conjointement avec les moyen de manche.
EP01950186A 2000-07-24 2001-07-16 Caisse d'emballage Withdrawn EP1311435A2 (fr)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
SE0002745 2000-07-24
SE0002745A SE0002745D0 (sv) 2000-07-24 2000-07-24 Låda
SE0100216 2001-01-24
SE0100216A SE0100216D0 (sv) 2001-01-24 2001-01-24 Låda
PCT/SE2001/001629 WO2002014160A2 (fr) 2000-07-24 2001-07-16 Caisse d'emballage

Publications (1)

Publication Number Publication Date
EP1311435A2 true EP1311435A2 (fr) 2003-05-21

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EP01950186A Withdrawn EP1311435A2 (fr) 2000-07-24 2001-07-16 Caisse d'emballage

Country Status (7)

Country Link
US (1) US20030111523A1 (fr)
EP (1) EP1311435A2 (fr)
AU (2) AU2001271211B2 (fr)
CA (1) CA2417117C (fr)
NO (1) NO20030355D0 (fr)
NZ (1) NZ524151A (fr)
WO (1) WO2002014160A2 (fr)

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Also Published As

Publication number Publication date
WO2002014160A3 (fr) 2002-05-16
WO2002014160A2 (fr) 2002-02-21
NZ524151A (en) 2005-09-30
CA2417117C (fr) 2008-09-02
NO20030355D0 (no) 2003-01-23
AU2001271211B2 (en) 2006-07-06
AU7121101A (en) 2002-02-25
CA2417117A1 (fr) 2002-02-21
US20030111523A1 (en) 2003-06-19

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