EP1534603B1 - A transport unit with a protective wrapping foil and a method of manipulating said wrapping foil - Google Patents
A transport unit with a protective wrapping foil and a method of manipulating said wrapping foil Download PDFInfo
- Publication number
- EP1534603B1 EP1534603B1 EP03790756A EP03790756A EP1534603B1 EP 1534603 B1 EP1534603 B1 EP 1534603B1 EP 03790756 A EP03790756 A EP 03790756A EP 03790756 A EP03790756 A EP 03790756A EP 1534603 B1 EP1534603 B1 EP 1534603B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- transport unit
- wrapping foil
- unit according
- panels
- foil
- 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.)
- Expired - Lifetime
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Classifications
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- 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
- B65D71/00—Bundles of articles held together by packaging elements for convenience of storage or transport, e.g. portable segregating carrier for plural receptacles such as beer cans or pop bottles; Bales of material
- B65D71/06—Packaging elements holding or encircling completely or almost completely the bundle of articles, e.g. wrappers
- B65D71/063—Wrappers formed by one or more films or the like, e.g. nets
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- 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
- B65D2571/00—Bundles of articles held together by packaging elements for convenience of storage or transport, e.g. portable segregating carrier for plural receptacles such as beer cans, pop bottles; Bales of material
- B65D2571/00006—Palletisable loads, i.e. loads intended to be transported by means of a fork-lift truck
- B65D2571/00012—Bundles surrounded by a film
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- 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
- B65D2571/00—Bundles of articles held together by packaging elements for convenience of storage or transport, e.g. portable segregating carrier for plural receptacles such as beer cans, pop bottles; Bales of material
- B65D2571/00006—Palletisable loads, i.e. loads intended to be transported by means of a fork-lift truck
- B65D2571/0008—Load supporting elements
- B65D2571/00092—Load supporting elements formed by specially placed articles or parts thereof
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- 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
- B65D2571/00—Bundles of articles held together by packaging elements for convenience of storage or transport, e.g. portable segregating carrier for plural receptacles such as beer cans, pop bottles; Bales of material
- B65D2571/00123—Bundling wrappers or trays
- B65D2571/00129—Wrapper locking means
- B65D2571/00135—Wrapper locking means integral with the wrapper
- B65D2571/00148—Wrapper locking means integral with the wrapper heat sealede or welded
Definitions
- the present invention relates to a transport unit according the preamble of claim 1 and 4 and a method of manipulating the wrapping foil.
- a transport unit where a plurality of insulating panels are stacked in two or more stacks adjacent each other on mutually spaced support elements of a material suitable for use for insulation purposes.
- the support elements may have different orientations relative to the position of the stacks.
- the stacks of panels and the support elements are enclosed in a protective foil wrapping.
- This wrapping also provides for a stable transport unit.
- This transport unit is composed of insulating panels, e.g. 1000x600 mm or 2000x600 mm, length and width respectively, and it is lifted by normal lifting means, such as a lift fork. At the user's end, the panels may be cut into size before it is fitted into the building construction, e.g. a roof construction.
- the fibrous material may alternatively be provided in rolls instead of stacked panels. Such rolls of insulation material are also wrapped with a wrapping foil in order to prevent the roll from unwinding and to protect the insulation material during transport.
- the invention relates to a transport unit comprising a plurality of panels, said panels being stacked on support means, wherein the panels and the support means may be retained together by a wrapping foil surrounding them, or the transport unit comprising at least one roll of fibrous web material, in particular material for insulation purposes, wherein said roll may be stacked on support means, and wherein the at least one roll is retained together by a wrapping foil surrounding at least the fibrous material. It is irrelevant for the purpose of the invention how the foil is wrapped around the transport unit.
- the foil may be used as a single sheet enveloping the panels and the support means, but may also be used as sheets enveloping the support means and the panels or stacks of panels separately.
- the invention consists of a transport unit of the above-mentioned kind, wherein at least one drain aperture is provided in the lower portion of the wrapping foil or the portion in contact with the support means, or the portion where water accumulation is most likely to occur, and that the at least one aperture is provided by a treatment in the wrapping foil so that the aperture is reinforced along the rim of the apertures and if there is an overlap of layers of wrapping foil these are joined together along the rim or part of the rim of the apertures.
- the treatment could be heat treatment, mechanical treatment or a chemical treatment, e.g. by use of an acid solution, or a combination of one or more of these treatments in order to achieve the same result.
- a drain aperture is provided by “burning” or “etching” a relatively small hole in the plastic wrapping foil.
- the overlapping layers of foil may be joined together by being melted together along the rim or part of the rim. This means that the holes in the individual layers of foil cannot be displaced relative to each other, which in turn means that the drain openings are not subsequently closed and the drainage function jeopardised.
- a reinforced edge along the aperture or part of the aperture may be provided, which compensates for the tensile weakness, which would otherwise be occurring by providing a hole in the wrapping foil.
- the panels are panels of fibrous insulating material, preferably stacked in at least one stack on support means consisting of mutually spaced support elements consisting of fibrous material suitable to be used for insulation purposes.
- a roll of fibrous material is provided in the transport unit and the at least one roll is provided on support means consisting of mutually spaced support elements consisting of fibrous material suitable to be used for insulation purposes.
- the at least one aperture is provided in the portion of the wrapping foil covering the support elements.
- at least two apertures are provided in connection with each of the support elements.
- the aperture(s) independently of how the foil is used shall be provided in the region or regions where water accumulation (water ponding) is most likely to occur. Often this occurs in the region near the support elements or in the lower region of the stack of panels, which faces the support elements.
- the invention also relates to a method of making an aperture in a wrapping foil, preferably a polymeric foil, which is surrounding a stack of panels on support means in a transport unit by advancing a heated member into engagement with the wrapping foil and melting an aperture having a geometry corresponding to the shape of the engagement end of the tuberous member.
- drainage may be accomplished by providing a cut or similar mechanical treatment in the foil, whereby the at least one aperture has a geometry corresponding substantially to the shape of the engagement end of the cutting means.
- Drainage may also be accomplished by means of a chemical treatment in the foil, whereby the at least one aperture may acquire a random geometry but is big enough to allow for the evacuation of accumulated water.
- the aperture provided by a heated member may be a generally round hole.
- the heated member is preferably a tubular member with a generally circular or oval cross-section.
- the aperture could also be provided by a laser.
- the at least one aperture is circular, preferably with a diameter between 0.5 to 50 mm, more preferably between 5 and 30 mm and most preferably between 15 and 25 mm.
- a large number of very small holes could be an alternative way of obtaining an equivalent result. Since the wrapping foil is usually wound around the fibrous material with an overlap and/or with a multiple of layers, by providing a substantially circular hole, the concentration of tensile stress around the hole it is kept low thus reducing the risk of damaging the wrapping foil.
- the at least one aperture is a semi-annular opening leaving an uppermost connecting portion, so that a flap is provided which is connected to the wrapping foil.
- the semi-annular opening is preferably semi-circular, elliptical, or similar smooth partially annular shape.
- the opening preferably circumscribes 25-98% and more preferably 50-90% of a full circle.
- This type of aperture may be provided by a method wherein the heated member is provided with an end section engaging the wrapping foil, which has a generally U-shaped or semi-circular shape.
- the wrapping foil is multi-layered.
- the heated member joins together a multiple of layers of polymeric wrapping foil along the rim of the apertures in a plastic welding process.
- the apertures are provided by a heat welding treatment in a polymeric wrapping foil and that the layers of wrapping foil are joined together along the rim of the apertures.
- the equipment for carrying out the method may be a portable equipment with an extendable heating member or equipment installed in the production line subsequent to the packaging line where the transport units are built and wrapped with the foil.
- the invention also relates to a method of making an aperture in a wrapping foil, which is surrounding a stack of panels on support means in a transport unit by advancing a member into engagement with the wrapping foil and providing an aperture having a geometry corresponding to the shape of the engagement end of the tuberous member.
- the member is heated to a temperature within an interval of 100°C to 200°C, preferably within 110°C to 180°C, more preferably 120°C to 160°C, most preferably approx. 135°C, and that the heated member engages the wrapping foil for a period of 0 to 30 seconds, preferably between 1 and 25 seconds, more preferably 2 to 20 seconds, most preferably approx 5 seconds.
- pressure is preferably applied when the heated member engages the wrapping foil. The combination of temperature, duration and pressure is dependent on the foil material in order to achieve a satisfactory result of the method.
- FIG 1 a transport unit comprising one or more stacks of panels 1, in particular panels of insulation material is shown.
- the stack of panels 1 is supported on support elements 3 and wrapped in a protective wrapping foil 2, which also constitutes the retention means for retaining the panels 1 in their stacked position during transport.
- the stack of panels 1 is placed on support elements 3 constituting the bottom side of the transport unit.
- the transport unit further has a top surface, a front and rear surfaces and two surfaces.
- the foil 2 is typically wrapped around the top and bottom and the side surfaces as shown in fig. 1.
- the wrapping foil 2 also provides the retention of the stack during transport besides protecting the fibrous insulation panels 1.
- the panels may be rectangular panels or wedge-shaped panels. As mentioned above, the fibrous material may alternatively be provided in rolls.
- the support elements 3 are preferably made of fibrous material, which is suitable for insulation purposes.
- the wrapping foil 2 encompasses both the panels 1 and the support elements 3.
- apertures 4 are provided in the vicinity of each of the exterior corners of the support elements 3, for instance as shown in fig. 1.
- the transport unit is shown in a side view. As indicated in this figure, the apertures 4 are positioned adjacent the exterior longitudinal sides of the support elements.
- the apertures 4 may be circular as shown in fig. 2 or semi-circular as shown in fig. 3.
- an aperture having a free opening is not necessary. It can be sufficient to have a slit, as it is the case with the embodiment having semi-circular apertures 4, see fig. 3.
- the advantage of the aperture being a partially annular slit is that there are no blanks which are cut away from the holes and which must be removed. This makes the production of the apertures 4 easier as the need for tidying the production floor is reduced compared to making "full" holes.
- the apertures 4 are produced by advancing a member 5, preferably a heated member, having at least a preferably heatable end section 6 towards the wrapping foil 2 at the position for the apertures 4.
- the heated member 5 is advanced forward to engage the wrapping foil 2, which is supported by the support element 3 immediately behind the foil 2.
- the aperture is melted through the foil or foils 2. Since the fibrous insulation material behind the foil is fire resistant, there is no danger of damaging the fibrous panels in the transport unit during the aperture-making process.
- the heated member 5 is heated to a temperature within the range of 100°C to 200°C, in a first embodiment approx. 135°C, and the member 5 is held in engagement for approx.
- the duration of this engagement may be from 0 to 30 seconds. This means that the member momentarily engages the wrapping foil, if this is deemed sufficient, or the member is held in engagement for a sufficient amount of time, e.g. with the application of a certain pressure. Depending on the foil material, a suitable combination of temperature, engagement time and possibly also the pressure applied is determined in order to achieve a good result of the thermal cutting action.
- the drain apertures are produced in the wrapping foil after the foil is wrapped around the stack of insulation panels.
- the apertures alternatively could be produced in the wrapping foil before the foil is wrapped around the transport unit.
- the apertures could be produced during the manufacture of the wrapping foil or during the unwinding of the roll of wrapping foil prior to the wrapping of the transport units.
- FIG. 7 is shown another embodiment of the invention, where the water accumulation region is at the bottom region of the stack of panels 1.
- the stack of panels 1 is partially wrapped in a foil 2 and the support means 3 are separately wrapped in an additional foil 2'.
- the support means 3 are at the upper surfaces of the support wrapping foils 2' adhesively attached to the wrapping foil 2.
- the apertures 4 are provided in the lowermost region of the "panel stack" portion of the transport unit, as this is the most likely region for water accumulation.
- the apertures may have different shapes. Accordingly, by the term circular is meant any annularly shape having a continuous curvature. Accordingly, elliptical, oval or other equivalent shapes are considered to be comprised in the term circular, as well as multi-edged holes which in practise have the same function. Furthermore, forces in the single or multiple layer foil may stretch it and thereby change the initial shape of any aperture.
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Abstract
Description
- The present invention relates to a transport unit according the preamble of
claim - From EP-A-0 946 394, a transport unit is known, where a plurality of insulating panels are stacked in two or more stacks adjacent each other on mutually spaced support elements of a material suitable for use for insulation purposes. The support elements may have different orientations relative to the position of the stacks. The stacks of panels and the support elements are enclosed in a protective foil wrapping. This wrapping also provides for a stable transport unit. This transport unit is composed of insulating panels, e.g. 1000x600 mm or 2000x600 mm, length and width respectively, and it is lifted by normal lifting means, such as a lift fork. At the user's end, the panels may be cut into size before it is fitted into the building construction, e.g. a roof construction.
- The fibrous material may alternatively be provided in rolls instead of stacked panels. Such rolls of insulation material are also wrapped with a wrapping foil in order to prevent the roll from unwinding and to protect the insulation material during transport.
- With a protective wrapping foil surrounding most of the entire transport unit, there may be a risk of water penetrating through the uncovered foil free areas and becoming trapped in the bottom of the unit, e.g. the support element. Since the transport units often are free exposed and thereby subjected to rain, the penetration of water is always latent. Some regions of the transport unit may accumulate water, and this is a particular problem when for instance support elements of fibrous material useable for insulation purposes are used. These support elements are useless if they are soaked in water. Since in some circumstances the support elements are sold together with the rest of the transport unit, it is imperative to maintain the support elements dry to keep customers satisfied and to avoid the need for costly disposal of useless support elements of soaked fibrous material.
- In this light, it is an object of the invention to provide a reliable solution to preventing the assembly of water in the support elements. Moreover, it is an object to provide a drainage, which does not critically reduce the strength of the wrapping foil and jeopardises the quality of the material in the transport unit.
- These objects are obtained by a transport unit according to the invention.
- The invention relates to a transport unit comprising a plurality of panels, said panels being stacked on support means, wherein the panels and the support means may be retained together by a wrapping foil surrounding them, or the transport unit comprising at least one roll of fibrous web material, in particular material for insulation purposes, wherein said roll may be stacked on support means, and wherein the at least one roll is retained together by a wrapping foil surrounding at least the fibrous material. It is irrelevant for the purpose of the invention how the foil is wrapped around the transport unit. The foil may be used as a single sheet enveloping the panels and the support means, but may also be used as sheets enveloping the support means and the panels or stacks of panels separately.
- The invention consists of a transport unit of the above-mentioned kind, wherein at least one drain aperture is provided in the lower portion of the wrapping foil or the portion in contact with the support means, or the portion where water accumulation is most likely to occur, and that the at least one aperture is provided by a treatment in the wrapping foil so that the aperture is reinforced along the rim of the apertures and if there is an overlap of layers of wrapping foil these are joined together along the rim or part of the rim of the apertures. The treatment could be heat treatment, mechanical treatment or a chemical treatment, e.g. by use of an acid solution, or a combination of one or more of these treatments in order to achieve the same result.
- Hereby, a drain aperture is provided by "burning" or "etching" a relatively small hole in the plastic wrapping foil. By "burning" or etching the apertures through the layers of foil, the overlapping layers of foil may be joined together by being melted together along the rim or part of the rim. This means that the holes in the individual layers of foil cannot be displaced relative to each other, which in turn means that the drain openings are not subsequently closed and the drainage function jeopardised. By melting the apertures in the wrapping foil, a reinforced edge along the aperture or part of the aperture may be provided, which compensates for the tensile weakness, which would otherwise be occurring by providing a hole in the wrapping foil.
- In a first embodiment of the invention, the panels are panels of fibrous insulating material, preferably stacked in at least one stack on support means consisting of mutually spaced support elements consisting of fibrous material suitable to be used for insulation purposes.
- In a second embodiment, a roll of fibrous material is provided in the transport unit and the at least one roll is provided on support means consisting of mutually spaced support elements consisting of fibrous material suitable to be used for insulation purposes.
- Preferably, the at least one aperture is provided in the portion of the wrapping foil covering the support elements. In the preferred embodiment, at least two apertures are provided in connection with each of the support elements. As mentioned above, the aperture(s) independently of how the foil is used, shall be provided in the region or regions where water accumulation (water ponding) is most likely to occur. Often this occurs in the region near the support elements or in the lower region of the stack of panels, which faces the support elements.
- The invention also relates to a method of making an aperture in a wrapping foil, preferably a polymeric foil, which is surrounding a stack of panels on support means in a transport unit by advancing a heated member into engagement with the wrapping foil and melting an aperture having a geometry corresponding to the shape of the engagement end of the tuberous member.
- Alternatively, drainage may be accomplished by providing a cut or similar mechanical treatment in the foil, whereby the at least one aperture has a geometry corresponding substantially to the shape of the engagement end of the cutting means.
- Drainage may also be accomplished by means of a chemical treatment in the foil, whereby the at least one aperture may acquire a random geometry but is big enough to allow for the evacuation of accumulated water.
- The aperture provided by a heated member may be a generally round hole. In the method of providing this aperture, the heated member is preferably a tubular member with a generally circular or oval cross-section. The aperture could also be provided by a laser. Preferably, the at least one aperture is circular, preferably with a diameter between 0.5 to 50 mm, more preferably between 5 and 30 mm and most preferably between 15 and 25 mm. A large number of very small holes could be an alternative way of obtaining an equivalent result. Since the wrapping foil is usually wound around the fibrous material with an overlap and/or with a multiple of layers, by providing a substantially circular hole, the concentration of tensile stress around the hole it is kept low thus reducing the risk of damaging the wrapping foil.
- In a preferred embodiment of the invention, the at least one aperture is a semi-annular opening leaving an uppermost connecting portion, so that a flap is provided which is connected to the wrapping foil. The semi-annular opening is preferably semi-circular, elliptical, or similar smooth partially annular shape. The opening preferably circumscribes 25-98% and more preferably 50-90% of a full circle. This type of aperture may be provided by a method wherein the heated member is provided with an end section engaging the wrapping foil, which has a generally U-shaped or semi-circular shape. By providing a semi-circular or equivalently shaped flap, i.e. by only melting away 50%-90%, e.g. 80%, of the full circle, no waste material is produced, which otherwise must be removed from the production site.
- In the preferred embodiment, the wrapping foil is multi-layered. According to the method, the heated member joins together a multiple of layers of polymeric wrapping foil along the rim of the apertures in a plastic welding process. The apertures are provided by a heat welding treatment in a polymeric wrapping foil and that the layers of wrapping foil are joined together along the rim of the apertures. The equipment for carrying out the method may be a portable equipment with an extendable heating member or equipment installed in the production line subsequent to the packaging line where the transport units are built and wrapped with the foil.
- The invention also relates to a method of making an aperture in a wrapping foil, which is surrounding a stack of panels on support means in a transport unit by advancing a member into engagement with the wrapping foil and providing an aperture having a geometry corresponding to the shape of the engagement end of the tuberous member.
- In a preferred embodiment, the member is heated to a temperature within an interval of 100°C to 200°C, preferably within 110°C to 180°C, more preferably 120°C to 160°C, most preferably approx. 135°C, and that the heated member engages the wrapping foil for a period of 0 to 30 seconds, preferably between 1 and 25 seconds, more preferably 2 to 20 seconds, most preferably approx 5 seconds. Moreover, pressure is preferably applied when the heated member engages the wrapping foil. The combination of temperature, duration and pressure is dependent on the foil material in order to achieve a satisfactory result of the method.
- In the following, the invention is illustrated with reference to some most preferred embodiments shown in the accompanying drawings, in which:
- Fig. 1
- is a front view of a transport unit according to a first preferred embodiment of the invention;
- Fig. 2
- is a side view of a transport unit according to the invention;
- Figs. 3 and 4
- are detailed views of two embodiments of the invention;
- Figs. 5 and 6
- are principal side views of the method of making apertures in the wrapping foil; and
- Fig. 7
- is a front view of a transport unit according to second preferred embodiment of the invention.
- In figure 1 a transport unit comprising one or more stacks of
panels 1, in particular panels of insulation material is shown. The stack ofpanels 1 is supported onsupport elements 3 and wrapped in aprotective wrapping foil 2, which also constitutes the retention means for retaining thepanels 1 in their stacked position during transport. - The stack of
panels 1 is placed onsupport elements 3 constituting the bottom side of the transport unit. The transport unit further has a top surface, a front and rear surfaces and two surfaces. Thefoil 2 is typically wrapped around the top and bottom and the side surfaces as shown in fig. 1. The wrappingfoil 2 also provides the retention of the stack during transport besides protecting thefibrous insulation panels 1. The panels may be rectangular panels or wedge-shaped panels. As mentioned above, the fibrous material may alternatively be provided in rolls. - The
support elements 3 are preferably made of fibrous material, which is suitable for insulation purposes. The wrappingfoil 2 encompasses both thepanels 1 and thesupport elements 3. In the section of the wrapping foil covering thesupport elements 3, which in the embodiment in fig. 1 includes the region of potential water accumulation,apertures 4 are provided in the vicinity of each of the exterior corners of thesupport elements 3, for instance as shown in fig. 1. - In fig. 4, the transport unit is shown in a side view. As indicated in this figure, the
apertures 4 are positioned adjacent the exterior longitudinal sides of the support elements. - The
apertures 4 may be circular as shown in fig. 2 or semi-circular as shown in fig. 3. In order to prevent water from accumulating in the support elements in the bottom of the transport unit, an aperture having a free opening is not necessary. It can be sufficient to have a slit, as it is the case with the embodiment havingsemi-circular apertures 4, see fig. 3. The advantage of the aperture being a partially annular slit is that there are no blanks which are cut away from the holes and which must be removed. This makes the production of theapertures 4 easier as the need for tidying the production floor is reduced compared to making "full" holes. - As shown in figs. 5 and 6, the
apertures 4 are produced by advancing amember 5, preferably a heated member, having at least a preferably heatable end section 6 towards the wrappingfoil 2 at the position for theapertures 4. Theheated member 5 is advanced forward to engage thewrapping foil 2, which is supported by thesupport element 3 immediately behind thefoil 2. As the end section 6 of theheated member 5 is fully engaged with wrapping foil, the aperture is melted through the foil or foils 2. Since the fibrous insulation material behind the foil is fire resistant, there is no danger of damaging the fibrous panels in the transport unit during the aperture-making process. Theheated member 5 is heated to a temperature within the range of 100°C to 200°C, in a first embodiment approx. 135°C, and themember 5 is held in engagement for approx. 5 seconds. The duration of this engagement may be from 0 to 30 seconds. This means that the member momentarily engages the wrapping foil, if this is deemed sufficient, or the member is held in engagement for a sufficient amount of time, e.g. with the application of a certain pressure. Depending on the foil material, a suitable combination of temperature, engagement time and possibly also the pressure applied is determined in order to achieve a good result of the thermal cutting action. - According to the preferred embodiment of the invention, the drain apertures are produced in the wrapping foil after the foil is wrapped around the stack of insulation panels. However, it is realised that the apertures alternatively could be produced in the wrapping foil before the foil is wrapped around the transport unit. The apertures could be produced during the manufacture of the wrapping foil or during the unwinding of the roll of wrapping foil prior to the wrapping of the transport units.
- In fig. 7 is shown another embodiment of the invention, where the water accumulation region is at the bottom region of the stack of
panels 1. In this embodiment, the stack ofpanels 1 is partially wrapped in afoil 2 and the support means 3 are separately wrapped in an additional foil 2'. The support means 3 are at the upper surfaces of the support wrapping foils 2' adhesively attached to thewrapping foil 2. Theapertures 4 are provided in the lowermost region of the "panel stack" portion of the transport unit, as this is the most likely region for water accumulation. - By the invention, it is realised that the apertures may have different shapes. Accordingly, by the term circular is meant any annularly shape having a continuous curvature. Accordingly, elliptical, oval or other equivalent shapes are considered to be comprised in the term circular, as well as multi-edged holes which in practise have the same function. Furthermore, forces in the single or multiple layer foil may stretch it and thereby change the initial shape of any aperture.
Claims (28)
- A transport unit comprising a plurality of panels (1) and/or rolls, said panels (1) and/or rolls being stacked on support means (3), wherein the panels (1) and the support means (3) are retained by wrapping foil (2),
characterised in that
at least one drain aperture (4) is provided in the portion of the wrapping foil (2), where water accumulation is most likely to occur, and that the at least one drain aperture (4) is provided by a treatment in the wrapping foil (2) - A transport unit according to claim 1, wherein the panels (1) and/or rolls are of fibrous insulating material.
- A transport unit according to claim 2, wherein the panels (1) are stacked in at least one stack on support means (3) consisting of mutually spaced support elements consisting of fibrous material suitable to be used for insulation purposes.
- A transport unit according to claim 3, wherein the at least one drain aperture (4) is provided in the portion of the wrapping foil (2) covering the support elements.
- A transport unit according to claim 3 or 4, wherein at least two drain apertures (4) are provided in connection with each of the support elements.
- A transport unit according to claim 3, wherein the at least one drain aperture (4) is provided in the portion of the wrapping foil (2) covering the lowermost section of the stack of panels (1) and/or rolls above the support elements.
- A transport unit according to claim 3 or 6, wherein at least two drain apertures (4) are provided on at least two sides of the transport unit.
- A transport unit according to any of the preceding claims, wherein the at least one drain aperture (4) is a generally round hole.
- A transport unit according to any of the preceding claims, wherein the at least one drain aperture (4) is circular, preferably with a diameter of 0.5 to 50 mm, more preferably 5 to 30 mm, and most preferably 15 to 25 mm.
- A transport unit according to any of the claims 1 to 8, wherein the at least one drain aperture (4) is a semi-annular opening leaving an uppermost connecting portion, so that a flap is provided which is connected to the wrapping foil (2).
- A transport unit according to claim 10, wherein the semi-annular opening is semi-circular, preferably circumscribing 50-90% of a full circle.
- A transport unit according to any of the preceding claims, wherein the wrapping foil (2) is multi-layered.
- A transport unit according to any of the preceding claims, wherein the wrapping foil (2) is single-layered.
- A transport unit according to any of the preceding claims, wherein the at least one drain aperture (4) is reinforced along the rim of the aperture.
- A transport unit according to any of the receding claims, wherein the at least one drain aperture (4) is provided in the wrapping foil (2) comprising an overlap or multiple of layers of wrapping foil (2) at the position of the drain aperture (4), by said layers being joined together along the rim of the drain aperture (4).
- A transport unit according to claim 15, wherein the overlap or multiple of layers of wrapping foil (2) at the position of the drain aperture (4) is provided by a heat member (5).
- A transport unit according to claim 15, wherein the heat member (5) is substantially tubular.
- A transport unit according to claim 1, wherein the panels (1) and the support means (3) are retained together by a common wrapping foil (2).
- A transport unit according to claim 18, wherein the transport unit is provided with additional support elements placed in between the stack of panels (1) and the support means (3).
- A transport unit according to claim 19, wherein the additional support elements are made of a material selected from a group comprising wood, plastic or the like.
- A method of making a drain aperture (4) in a wrapping foil (2), which is surrounding a stack of panels (1) on support means (3) in a transport unit by advancing a member (5) into engagement with the wrapping foil (2) and providing a drain aperture (4) having a geometry corresponding to the shape of the engagement end of the tuberous member (5).
- A method according to claim 21, whereby the member (5) is a heated tubular member (5) with a generally circular cross-section.
- A method according to claim 21, whereby the member (5) is provided with an end section (6) engaging the wrapping foil (2), which has a generally U-shaped or semi-circular shape.
- A method according to any of the claims 21 to 23, whereby the member (5) joins together a multiple of layers of polymeric wrapping foil (2) along the rim of the drain apertures (4) in a plastic welding process.
- A method according to any of the claims 21 to 24, whereby the member (5), which is advanced towards the wrapping foil (2), is a heated member (5) and the drain aperture (4) is melted in the wrapping foil (2).
- A method according to claim 25, whereby the member (5) is heated to a temperature within an interval of 100°C to 200°C, preferably within 110°C to 180°C, more preferably 120°C to 160°C, most preferably approx. 135°C, and that the heated member (5) engages the wrapping foil (2) for a period of 0 to 30 seconds, preferably between 1 and 25 seconds, more preferably 2 to 20 seconds, most preferably approx 5 seconds.
- A method according to any of the claims 25 to 26, whereby pressure is applied when the heated member (5) engages the wrapping foil (2).
- A method according to any of the claims 21 to 27, whereby the member (5), which is advanced towards the wrapping foil (2), applies a chemical means, such as an acid or an basic solution, for forming one or more drain apertures (4) in the wrapping foil (2).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP03790756A EP1534603B1 (en) | 2002-09-02 | 2003-08-12 | A transport unit with a protective wrapping foil and a method of manipulating said wrapping foil |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP02078605 | 2002-09-02 | ||
EP02078605A EP1394066A1 (en) | 2002-09-02 | 2002-09-02 | A transport unit with a protective wrapping foil and a method of manipulating said wrapping foil |
PCT/DK2003/000536 WO2004020305A1 (en) | 2002-09-02 | 2003-08-12 | A transport unit with a protective wrapping foil and a method of manipulating said wrapping foil |
EP03790756A EP1534603B1 (en) | 2002-09-02 | 2003-08-12 | A transport unit with a protective wrapping foil and a method of manipulating said wrapping foil |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1534603A1 EP1534603A1 (en) | 2005-06-01 |
EP1534603B1 true EP1534603B1 (en) | 2006-03-01 |
Family
ID=31197940
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP02078605A Withdrawn EP1394066A1 (en) | 2002-09-02 | 2002-09-02 | A transport unit with a protective wrapping foil and a method of manipulating said wrapping foil |
EP03790756A Expired - Lifetime EP1534603B1 (en) | 2002-09-02 | 2003-08-12 | A transport unit with a protective wrapping foil and a method of manipulating said wrapping foil |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP02078605A Withdrawn EP1394066A1 (en) | 2002-09-02 | 2002-09-02 | A transport unit with a protective wrapping foil and a method of manipulating said wrapping foil |
Country Status (6)
Country | Link |
---|---|
EP (2) | EP1394066A1 (en) |
AT (1) | ATE318773T1 (en) |
AU (1) | AU2003250320A1 (en) |
DE (1) | DE60303823D1 (en) |
DK (1) | DK1534603T3 (en) |
WO (1) | WO2004020305A1 (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101107178B (en) | 2005-01-20 | 2010-06-16 | 圣戈班伊索福公司 | Panel transport unit |
US20110274723A1 (en) | 2009-10-23 | 2011-11-10 | Mannkind Corporation | Cancer immunotherapy and method of treatment |
ITMI20100468A1 (en) * | 2010-03-23 | 2011-09-24 | Messersi Packaging Srl | METHOD AND PLANT FOR FORMING PACKAGES WITH SUPPORTING FOOT WITHOUT PALLET |
EP3626637A4 (en) * | 2017-05-19 | 2021-01-20 | Corelex Shin-Ei Co., Ltd. | Method for manufacturing package |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2161527A7 (en) * | 1971-11-23 | 1973-07-06 | Applic Thermiques | |
DE2303128A1 (en) * | 1973-01-23 | 1974-08-01 | Platmanufaktur Ab | Packaged stacked articles lifted by fork lift truck - with lowest layer between fork arms held suspended in wrapping sheet welded to upper sheet |
DE2914138A1 (en) * | 1979-04-07 | 1980-10-09 | Basf Ag | PALLETLESS CHARGER |
DE29620646U1 (en) | 1996-11-27 | 1997-03-27 | Deutsche Rockwool Mineralwoll-Gmbh, 45966 Gladbeck | Transport unit |
IT1295487B1 (en) * | 1997-10-16 | 1999-05-12 | Eugenio Gobetto Tiozzo | EXTENSIBLE PERFORATED FILM FOR PALLETIZATION |
EP1002738B1 (en) * | 1998-11-19 | 2005-05-18 | Deutsche Rockwool Mineralwoll GmbH & Co. OHG | Storage and transport unit for insulating elements |
-
2002
- 2002-09-02 EP EP02078605A patent/EP1394066A1/en not_active Withdrawn
-
2003
- 2003-08-12 AU AU2003250320A patent/AU2003250320A1/en not_active Abandoned
- 2003-08-12 DK DK03790756T patent/DK1534603T3/en active
- 2003-08-12 AT AT03790756T patent/ATE318773T1/en not_active IP Right Cessation
- 2003-08-12 DE DE60303823T patent/DE60303823D1/en not_active Expired - Lifetime
- 2003-08-12 EP EP03790756A patent/EP1534603B1/en not_active Expired - Lifetime
- 2003-08-12 WO PCT/DK2003/000536 patent/WO2004020305A1/en not_active Application Discontinuation
Also Published As
Publication number | Publication date |
---|---|
DE60303823D1 (en) | 2006-04-27 |
DK1534603T3 (en) | 2006-07-03 |
EP1394066A1 (en) | 2004-03-03 |
ATE318773T1 (en) | 2006-03-15 |
WO2004020305A1 (en) | 2004-03-11 |
EP1534603A1 (en) | 2005-06-01 |
AU2003250320A1 (en) | 2004-03-19 |
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