• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    SUMMARY The invention relates to a package (100) for frozen foods comprising: at least a first and a second closed container (10, 20) formed of flexible layers of plastic material, the containers (10, 20) containing frozen food (30). characterized by a sleeve (40) surrounding the containers (10, 20) for holding them together, the sleeve (40) being made of rigid material and having an upper side (41), a lower side (43), a first long side (42 The invention also relates to a blank for a sleeve. Figure 1
    公开号:SE1150348A1
    申请号:SE1150348
    申请日:2011-04-20
    公开日:2012-10-21
    发明作者:Tomas Henfelt
    申请人:Findus Sverige Aktiebolag；
    IPC主号:
    专利说明:

    Long side and a second long side, at least the upper and lower sides of the sleeve being flat surfaces to support further packages of the same type.
    The sleeve effectively holds the containers together so that they are not separated from each other.
    Furthermore, the sleeve provides at least two opposite and substantially flat surfaces of the package regardless of the shape of the frozen products contained in the package. The substantially flat surfaces enable the package to be stably supported against an additional package of the same type even if the frozen products have an organ-bound form. As a result, the packages obtain good stackability, which means more efficient handling of the packages during transport and storage.
    Furthermore, the use of a sleeve which only partially covers the frozen products means that consumers can see the frozen product and form an opinion about its quality. In comparison with packages that comprise whole cartons, the sleeve also results in a considerable material saving.
    Since the sleeve has completely open ends, a further advantage of the packaging according to the invention is that it is completely independent of the length of the products to be packaged.
    The invention also relates to a sleeve blank for a sleeve comprising a first end section, which adjoins a first side section, which adjoins a first middle section, which adjoins a second side section, which adjoins a second middle section, which adjoins a third side section which adjoins second end section, the sleeve blank sections being separated by fold lines so that in the folded state the sleeve blank forms a sleeve of rectangular shape, the first middle section forming the top of the sleeve, the second middle section forming the underside of the sleeve, the second side section forming the first long side of the sleeve and the first long side of the sleeve. together form the second long side of the sleeve, the end sections of the sleeve blank extending from the second long side of the sleeve to the first long side of the sleeve.
    Further alternatives and embodiments of the invention appear from the dependent claims and from the following detailed description.
    DESCRIPTION OF THE FIGURES Figure 1: A perspective view of a package according to the invention according to a first preferred embodiment.
    Figures 2a, 2b: Two continuous containers for fish fillet according to a first alternative.
    Figures 3a, 3b: Two continuous containers for fish fillet according to a second alternative.
    Figure 4: A side view of three packages according to the invention stacked on top of each other.
    Figure 5: A blank for a sleeve for the package according to the invention according to the first embodiment.
    Figure 6: A sleeve for the package according to the invention according to the first embodiment.
    Figure 7: A sleeve for the package according to the invention according to the first embodiment comprising a stiffening element.
    Figure 8: Detailed view of the sleeve in figure 7 enclosing two containers with frozen fish fillets.
    Figure 9: A blank for a sleeve for the package according to the invention according to the first embodiment comprising a stiffening element.
    Figure 10: A blank for a sleeve for the package according to the invention according to a second preferred embodiment Figure 11: A sleeve for the package according to the invention according to the second preferred embodiment.
    Figure 12 -14: Side views of the package according to the invention according to the second embodiment.
    DESCRIPTION OF EMBODIMENTS Figure 1 shows a package 100 according to the invention according to a first embodiment.
    The package consists of two containers 10, 20 of flexible plastic film. Each container 10, 20 contains frozen food 30, in this case each container contains two fish fillets, eg cod. However, the containers may contain any frozen food, such as fruit or vegetables. The containers are closed and vacuum-sucked so that they do not contain air and so that they abut tightly against the frozen product 30. According to an alternative, the containers are separate and closed bags which face each other, for example on each other.
    According to an alternative, the containers are two continuous bags 10, 20 (see Figure 2a), made by placing the fish fillets 30 between two overlapping plastic layers, the edges of the plastic layers and the area between the fillets being welded together under pressure and heat so that each fish fillet is in a defined bag. of a joining section 15. The bags are connected along a common section 16 which is located between two bags. The common section 16 is a part joining the section 15. As can be seen from Figure 2a, the bags 10, 20 are rectangular and the common section 16 extends across the plastic layers.
    It is preferred that the fish fillets in each bag be placed obliquely in such a way that the fillets in both bags are inclined 10, 20 in the same direction. Furthermore, it is preferred if the fish fillets are placed in the bags with their rounded side, i.e. the skin side downwards and their flat side, i.e. the backbone side, upwards. The advantage of placing the fish fillets in this way is that the flat surfaces of the fish fillets then meet each other in a cross-like manner when the continuous bags are folded towards each other. Since the flat sides of the fillets abut each other, the bags with the fillets are stably held together. In Figure 2a, the cross-like arrangement of the fish fillets is greatly exaggerated, in reality the pockets are also often vacuum-sucked so that they slip around the fish fillets. The bags are folded towards each other (see figure 2b), along the common section 16 in the joining section 15 as a book so that the flat side of the fillets in the first bag ends up on top of the flat side of the fillets in the second bag. When the containers are folded towards each other, a fold is formed in the plastic film between the containers, the fold has the shape of a According to a second alternative (see Figure 3a), the containers are depressions formed by vacuum forming under heat in one of the plastic layers. The depressions constitute containers 10, 20 for the fish fillets 30 and are therefore dimensioned so that each container holds one or more fish files. When frozen fish fillet is placed in the containers, the first plastic layer is covered with a second plastic layer that closes the containers. The edges of the first and second plastic layers are welded together under pressure and heat so that a joining section 15 is formed which completely seals the plastic layers. In this case, the plastic films thus form a rectangular bag comprising two containers for frozen fish fillets. The two depressions are spaced apart so that they can be folded against each other along a section 16 extending between the containers across the bag, see Figure 3b. An advantage of this type of container is that the fish files are held securely in place between the overlapping plastic layers.
    The plastic layer used in the bags is a flexible plastic film of a multilayer material consisting of a layer of polyethylene (PE) of 65 μm thickness and a layer of polypropylene (PP) of 150 μm thickness. When manufacturing the containers, the layers are laid so that the polyethylene layers meet and weld together.
    A sleeve 40 surrounds the two containers, see figure 1. The sleeve length, i.e. the distance between its openings, and its location is chosen so that it encloses the life formed where the frozen fish fillets cross each other and so that the fish files are visible when the sleeve surrounds them. Since the surrounding sleeve is placed over the position where the fillets cross each other, the sleeve is prevented from sliding off the containers 10, 20 because the ends of the fillets protrude slightly outside the sleeve.
    The sleeve is preferably dimensioned so that it only covers the middle section of the containers 10, 20 which contain the frozen product, about 30% of the length of the frozen product. This enables the consumer to see the frozen products.
    When the sleeve 40 surrounds the containers with frozen product, it has a rectangular cross-section.
    The sleeve has an upper side 41 which is located opposite a lower side 43 and two opposite long sides 42, 44. The ends of the sleeve are thus completely open. The top of the sleeve is at a right angle, approximately 90 degrees, to the long sides and its underside is at a right angle to the long sides. It is obvious that depending on how the packaging is handled, the upper side of the sleeve can also be an underside and its underside an upper side. The same, of course, also applies to its long sides, which can also be considered short sides, tops or bottoms depending on how the sleeve is placed. Thus, when the sleeve surrounds the containers, at least its upper side 41 and lower side 43 and preferably also its long sides are substantially flat.
    This is accomplished as follows: The package according to the invention is manufactured in a large number and each package must contain a predetermined weight of fish fillet, typically about 520 grams. The fish fillets to be packaged are selected so that the length and thickness of the fish fillets are as equal as possible within an acceptable tolerance range. Thereby it is achieved that the total thickness or height of the fish fillets when two containers lie on top of each other is approximately constant over a plurality of packages.
    In the case where the containers are bags, the fish fillets are arranged diagonally in the bags. If the containers are the depressions in a plastic layer, these are formed obliquely in the plastic layer. Thereby it is achieved that when the bags abut each other, the intersecting fish fillets have a predetermined width in the area of the life of the intersecting fish fillets, i.e. across the fish fillets. The predetermined width can be achieved more precisely by cutting the fish fillets to a predetermined width when the fish is filleted.
    The sleeve enclosing the adjacent containers is manufactured in advance and its dimensions have been adapted to the predetermined dimensions of the fish fillets to which the sleeve is to be enclosed.
    That is, the height of the sleeve has been adapted to the thickness of a predetermined amount of fish fillet, eg 520 grams and the width of the sleeve has been adapted to the distance across the life of the crossed fish fillets, ie the area where they cross each other. This measure is slightly less than the distance across the ends of the crossed fish fillets.
    Since the upper side of the fillets, ie the round skin side, often has an irregular contour, it is important that the material in the sleeve is sufficiently rigid so that the sleeve does not form according to the shape of the fish fillets when it is applied around the fillets. Furthermore, the sleeve must also be so rigid that it is not deformed when several packages are stacked on top of each other.
    It is therefore suitable that the sleeve consists of cardboard with a stiffness of at least 350 g / m2 so that it does not form around the fish files and maintain its rectangular cross-section when it surrounds the containers. However, the material of the sleeve can be varied depending on how the packaging according to the invention is to be handled.
    Figure 4 shows three packages 100 according to the invention, each of which comprises a sleeve 40 enclosing the frozen foods 30. The packages have been stacked on top of each other in such a way that the top 41 of a package 100 is in contact with the underside 43 of a top package 100 and supports it.
    The packages can also be placed next to each other on one of the long sides of the sleeve so that the lower and upper sides of the sleeve support each other laterally. After that, additional packages can be supported on top of the underlying packages. When the sleeve then encloses the adjacent containers with fish fillet, the upper side 41 of the sleeve abuts against the upper side, ie the skin side, of the fish fillets in the first container 10 and the lower side 43 of the sleeve abuts against the skin side of the fish fillets in the second container 20. The long sides of the sleeve abuts against the sides of the fish fillets around the lives of the crossed fish fillets. The sleeve is retained around the fish fillets by adapting its dimensions to the predetermined dimensions of the selected fish file. Therefore, the force with which the sleeve is tightened around the fillets can be kept low. In principle, it is sufficient for the sleeve to abut against the thickest place of the fillets for the containers to be held together and the sleeve to have a rectangular cross-section with substantially flat upper and lower sides.
    In the case that the containers are made of overlapping plastic layers with a surrounding joining edge, it is suitable that the width of the sleeve is adjusted so that it is slightly smaller than the width of the folded containers but slightly larger than the width of the fish fillets in each container. Thereby it is achieved that the sleeve can be tightened around the containers with such a large clamping force that the edge surrounding the containers is compressed slightly. Thereby, the sleeve is held securely around the containers without the main rectangular cross-section of the sleeve being affected.
    Figure 5 shows a blank 70 which in the folded state forms the sleeve 40 for the package according to the invention in Figure 1. The blank 70 is rectangular and has a rectangular middle section 71 which forms the upper side 41. The middle section 71 is dimensioned so that its length L corresponds to the length of the area around the lives of the crossed fish fillets. The width B of the middle section 71 is dimensioned so that it corresponds to the distance across the crossed fillets in the area of the life of the crossed fillets.
    The middle section 71 is delimited by two parallel fold lines, which extend across the entire blank 70, towards two rectangular side sections 72 and 74 which form the long sides 41, 44 of the sleeve. The length 1 of the side sections is dimensioned so that they correspond to the thickness of the adjacent fish fillets. That is the height of two superimposed bags of fish fillet. Side section 72 is defined by a crease line towards a first end section 73 and side section 74 is bounded by a crease line towards a second end section 75. When the sleeve is folded around the frozen products, the sleeve forms along the crease lines and obtains a rectangular cross section. The end sections 73 and 75 are designed so that they can be connected to each other and then form the underside 43 of the sleeve. In this case, a rounded recess has been made in the end section 73 so that a first butterfly wing 76 is formed. A corresponding recess has been made on the opposite side in end section 75 so that a second butterfly wing 79. When the blank 70 is folded into a sleeve 40, the first butterfly wing 76 is inserted under the second end section 75 and the second butterfly wing 79 is moved. into the first end section 73, the butterfly wings being locked together. Figure 6 shows the underside 43 of a sleeve 40. To further secure the locking, a label 78 can be glued over the joint between the end sections 73, 75. The end sections could also be completely straight and in that case they are folded over and fixed with the glued label.
    According to an alternative, see Figure 7, the sleeve 40 may comprise one or more stiffening elements 50 which are arranged at the ends of the sleeve, in the corners between the long sides and short sides of the sleeve. In Figure 7, the stiffening element is in the form of a parallel trapezoid having two parallel opposite sides 51 and 53, a side 52 extending at right angles to the parallel sides 51 and 53 and a side 54 extending diagonally between the parallel sides 51 and 53. The stiffening element 50 is formed so that a gap 55 is formed between its lower side 51 and the lower side 43 of the sleeve. The upper side 53 of the stiffening element, which is longer than its lower side 51, is in contact with the upper side 41 of the sleeve. of the stiffening member extending at right angles to the sides 51 and 53 is connected to the long side 42 of the sleeve and the diagonal side 54 of the stiffening member is turned away from the long side 42 of the sleeve towards the center of the sleeve.
    When the sleeve 40 encloses two continuous containers 10, 20 with a surrounding joining edge, the edge ends up in the gap 55 and the lower side 53 of the stiffening element 50 presses the joining edge against the lower side 43 of the sleeve, see figure 8. The continuous containers with fillet is thereby prevented from moving laterally in the sleeve. The upper side 51 of the stiffening element reinforces the upper corner of the sleeve so that the upper surface 41 of the sleeve is kept substantially flat.
    An advantage of this embodiment is that greater variation over the width of the fish fillets can be allowed and in addition the fish fillets can be arranged in parallel because they are held in the sleeve by the stiffening element.
    The stiffening element 50 is a part of the starting blank 70 for the sleeve 40 for the package according to the invention, see figure 9. The sleeve blank comprises two stiffening elements 50 starting from the first end section 73 and the second end section 75. The stiffening elements are foldable arranged at the end sections 73, 75 of the sleeve via a crease line which coincides with side 52 of the stiffening element. Furthermore, each stiffening section comprises a fastening tab 58. In the side sections 72, 74 of the sleeve blank there are grooves 57 in which the fastening tab can be inserted. Other parts of the sleeve blank in Figure 9 are identical to the sleeve blank in Figure 5. When applying the sleeve around two continuous containers 10, 20 with frozen fish fillets, the sleeve blank is first folded around the containers and the end sections of the sleeve blank are connected. The stiffening elements are then folded in towards the ends of the sleeve, whereupon the joining edge of the containers is pressed into the gap between the lower side 51 of the stiffening blank and the lower side 43 of the sleeve.
    Figure 10 shows a sleeve blank 90 for a sleeve 80 for a package according to the invention according to a second embodiment, the sleeve 80 is shown in Figure 11. Sleeve blank 90 is rectangular and comprises a first end section 93, which adjoins a first side section 92, which adjoins a first center section 91, adjacent to a second side section 94, adjacent to a second center section 96, adjacent to a third side section 98 adjacent second end section 95. The sleeve blank sections are rectangular and are separated by crease lines extending across the sleeve blank. Figure 11 shows a sleeve 80 which includes the sleeve blank 90 which is folded along the crease lines.
    The first center section 91 forms the upper side 81 of the sleeve and the first and third side sections 92 and 98 together form the second long side 82 of the sleeve. The second middle section 96 of the sleeve blank forms the underside 42 of the sleeve and the second side section 94 of the sleeve blank forms the first long side 44 of the sleeve. in the sleeve so that they extend from the long side 82 towards the center of the sleeve, parallel to the upper and lower side 81, 83 of the sleeve. Preferably the end sections are so long that they extend almost all the way to the first long side of the sleeve, however the folded section of the plastic film forming the continuous containers of frozen fish fit between the first long side of the sleeve and the protruding end sections. A label is placed over the joint between the first and third side sections so that the sleeve is held together.
    Furthermore, the sleeve blank comprises two flaps 97 starting from the crease line between the third side section 98 and the first end section 95. The flaps have been cut out in the first end section 95. Two slits 99 are formed in the crease line between the second end section 93 and the first end section 92 to receive the flaps 97 when the sleeve blank is folded. The purpose of the flaps 97 and the slots 99 is to guide the sleeve to the correct shape during its folding.
    Figures 12 - 14 show how the sleeve blank according to the invention is arranged around two continuous containers with frozen fish fillet, typically continuous bags or a bag with two depressions folded along a section between the bags or depressions. For clarification, the fish fillet is not shown in the figures. However, the fish fillet is placed in the manner described in sub-figure 2, i.e. with the round skin side downwards, towards the sleeve blank, and the flat side upwards.
    In a first step, see figure 12, two continuous containers 10, 20 with fish fillet are placed on a sleeve blank 90. The continuous containers are placed so that the first container 10 lies on top of the first middle section 91 of the sleeve blank and the second container 20 lies on top of the second middle section 96 of the sleeve blank. The section 16 between the containers 10, 20 lies approximately on top of the second side section 94 of the sleeve blank.
    The first and third side sections 92, 98 of the sleeve blank are folded up against the containers 10, 20 and then the end sections 93, 95 are folded in over the upper sides of the containers. Then the continuous containers are folded towards each other along the section 16 together with the sleeve blank 90, see figure 13. Finally, the flaps 97 are inserted into the slots 99 and a label is placed over the joint between the first and third side sections so that the sleeve is held together.
    When the continuous containers are folded towards each other, the end sections 93, 95 of the sleeve blank end up between the facing containers 10, 20 and extend between them, see figure 14. The fish fillets in the containers lie so that their flat sides face each other and the end sections extend in between these flat sides all the way into the folded area between the containers, i.e. the fold in the section between the containers, so that the end sections come into contact with the plastic layer in the fold.
    When the sleeve is subjected to a mild pulling force, for example when a consumer lifts the package and pulls a little on the sleeve to study the fish files, the sleeve can begin to slide over the containers. As a result, the end sections of the crease slide between the containers.
    During the sliding movement, one of the corners of the end sections gets stuck in the fold between the containers, for example in some unevenness in the fold. As a result of the continued pulling movement, this causes a diagonal displacement of the end sections, which in turn leads to the end sections 10 15 20 25 11 being wedged into the crease and makes it difficult to pull the sleeve away from the folded containers.
    The sleeve often carries information about, for example, the products' origin, handling and best before date. Since the sleeve according to the above-mentioned embodiment sits securely around the folded containers and is difficult to remove, the traceability of the products contained in the package is ensured.
    Furthermore, this embodiment enables the fish fillets to be arranged in parallel.
    In the same way as described in connection with the sleeve blank 70 for the sleeve 40 according to the first embodiment, the width B and the length I of the sleeve blank sections have been dimensioned according to the size of the fish fillets to be packed in the package.
    Thereby it is achieved that when the sleeve surrounds the containers with frozen food, at least its upper and lower sides, and preferably also its long sides, are flat surfaces. Preferably, the sleeve is dimensioned so that it has a rectangular cross-section.
    In sleeve blank 90, the width of the second side section 94, i.e. the side section located between the first and third side sections and forming one long side of the sleeve, shall be dimensioned according to the thickness of the fish fillets contained in the containers 10, 20. Since the first and third the side section together form the second long side of the sleeve, their total width shall be equal to the width of the other side section. The width of the first and third side sections shall also be adapted to the thickness of the fish fillet in the respective containers 10, 20.
    In the description, specific embodiments of the invention have been described in detail. This has been done for illustrative purposes and not for the purpose of limiting the invention. It is obvious that various changes and modifications may be made to the invention within the scope of the appended claims. For example, the sleeve according to the first embodiment can be applied around two elongate frozen products which abut parallel to each other. However, the clamping force in the sleeve may be increased slightly. It is also possible to apply the stiffening element in the first embodiment to the sleeve blank described in the second embodiment.
    权利要求:
    Claims (17)
    [1]
    A package (100) for frozen foods comprising: at least a first and a second sealed container (10, 20) formed of flexible layers of plastic material, the containers (10, 20) containing frozen food (30) characterized by a sleeve (40, 80) surrounding the containers (10, 20) for holding them together, the sleeve (40, 80) being made of rigid material and having an upper side (41, 81), a lower side (43, 83), a first long side (42, 82) and a second long side (44, 84), at least the upper and lower side of the sleeve being flat surfaces to support further packages (100) of the same type.
    [2]
    The package of claim 1, wherein the sleeve (40) has a rectangular cross section.
    [3]
    The package according to any one of the preceding claims, wherein the sleeve (40, 80) only partially covers the containers (10, 20).
    [4]
    The package according to any one of the preceding claims, wherein the sleeve (40, 80) is made of paper material, preferably cardboard having a weight of 350 g / m 2.
    [5]
    The package according to any one of the preceding claims, wherein the sleeve (40, 80) comprises at least one stiffening element (50) which supports at least the upper and / or lower side of the sleeve (41, 81, 43, 83).
    [6]
    The package according to any one of the preceding claims, wherein the containers consist of polypropylene.
    [7]
    The package according to any one of the preceding claims, wherein the containers consist of a layer of polypropylene and a layer of polyethylene.
    [8]
    The package according to any one of the preceding claims, wherein the containers (10, 20) are bags (10, 20).
    [9]
    The package of claim 8 wherein the bags (10, 20) are formed of two overlapping layers of flexible plastic material joined together by a joining section (15) into continuous closed bags, the bags (10, 20) being folded against each other along a common part (16) of the joining section (15). 10 15 20 25 30 13
    [10]
    The package according to any one of claims 1-7, wherein the containers (10, 20) consist of depressions (10, 20) formed in a first plastic layer, a second plastic layer being arranged on top of the first plastic layer and joined thereto by means of a joining section. (15) along the edges of the first and second plastic layers so that the containers are closed, the containers (10, 20) being folded against each other along a section (16) between the containers (10, 20).
    [11]
    The package according to any one of claims 9 or 10, wherein a gap (55) is present between the at least one stiffening element (50) and the at least upper or lower side (41, 43) of the sleeve for receiving a part of the joining section ( 15).
    [12]
    The package of any preceding claim, wherein the sleeve comprises a flat sleeve blank (90) comprising a first end section (93) adjacent a first side section (92) adjacent a first center section (91) adjacent a second side section (94) adjacent a second center section (96) adjacent a third side section (98) adjacent a second end section (95), the end sections (93, 95) of the sleeve blank extending between the containers (10); , 20), the first middle section (91) forming the upper side (81) of the sleeve, the second middle section (96) forming the lower side (83) of the sleeve, the second side section (94) forming the first long side (82) of the sleeve and so that the first and third side sections (93, 98) together form the second long side (84) of the sleeve.
    [13]
    The package of claim 12 wherein the containers (10, 20) comprising the frozen food are folded against each other, the end sections (93, 95) of the sleeve blank extending to the section (16) of the plastic film along which the containers (10,20) are folded against each other.
    [14]
    The package of claim 12 or 13, wherein the length (1) of the second side section (94) is equal to the total length (1) of the first and third side sections (92, 98).
    [15]
    The package according to any one of the preceding claims, wherein the respective containers (10, 20) contain at least one fish file (30), the fish files (30) being arranged so that they meet diagonally when the containers (10, 20) abut each other.
    [16]
    The package of claim 14, wherein the sleeve (40, 80) encloses the containers (10, 20) where the fish fillets (30) intersect. 10 14
    [17]
    Sleeve blank (90) comprising a first end section (93) adjacent a first side section (92) adjacent a first center section (91) adjacent a second side section (84) adjacent a second center section (96), which adjoins a third side section (98) adjacent to the second end section (95), the sections of the sleeve blank (93, 92, 91, 94, 96, 98, 95) being separated by crease lines so that the sleeve blank in the folded state forms a sleeve (80) of rectangular shape, the first middle section (91) forming the upper side (81) of the sleeve, the second middle section (96) forming the underside (83) of the sleeve, the second side section (94) forming the first long side (82) of the sleeve and the first and third side sections (93, 98) together form the second long side (84) of the sleeve, the end sections (93, 95) of the sleeve blank extending from the second long side (84) of the sleeve to the first long side of the sleeve.
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    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    SE1150348A|SE536079C2|2011-04-20|2011-04-20|Packaging for frozen foods|SE1150348A| SE536079C2|2011-04-20|2011-04-20|Packaging for frozen foods|
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