DE102013215654A1 - Packaging unit for a rolled-up on a winding core glass - Google Patents

Abstract

The present invention relates to a packaging unit for receiving a rolled up on a winding core glass comprising a winding core, two supports and a transport frame, wherein the glass material is rollable on the winding core and the winding core relative to the glass material has at least one extended region. The outer circumference of the winding core in its extended region is mounted following at least part of its circumference on a support and the support is mounted on the transport frame. In the region of the end face of the winding core, a receptacle is provided, which is connected to a holding element, which braces the winding core on the support by means of a holding device. Furthermore, the packaging unit is used for the production of a roll transportable system packaging for rolled up glass material, wherein the packaging unit is carried by a packaging frame and the system packaging comprises a side cover with lid.

Description

The present invention relates to a packaging unit for a rolled-up on a winding core glass and the use of such a packaging unit.

For a variety of applications such. In the field of consumer electronics such as cover glasses for semiconductor modules, for organic LED light sources or even thinner display devices or in areas of renewable energy or energy technology, such as solar cells is increasingly used thin glass. Examples include touch panels, capacitors, thin-film batteries, flexible printed circuit boards, flexible OLEDs, flexible photovoltaic modules or even e-papers. Thin glass is becoming more and more of a focus for many applications due to its excellent properties such as resistance to chemicals, thermal shocks, gas tightness, high electrical insulation capacity, coefficient of expansion, flexibility, high optical quality and translucency or high surface quality with very low roughness due to a fire polished finish Surface. Thin glass is understood to mean glass plates, glass webs, glass substrates or glass foils with thicknesses of less than about 1.2 mm up to thicknesses of 15 μm and smaller. Due to its flexibility, thin glass is increasingly being rolled up after production and stored as a glass roll or transported for packaging or further processing. The rolling of the glass involves the advantage of a more cost-effective compact storage, transport and handling in the further processing compared to a storage and transport of flat-spreading material.

To further reduce transport and storage costs, it is advantageous to wind as tight radii as possible, whereby, however, the tensile stresses in the glass band and thus the risk of breakage are increased.

Despite its outstanding properties, glass as a brittle material has a rather low breaking strength because it is less resistant to tensile stresses. For a break-free storage and for a break-free transport of such a glass roll, first of all the quality and integrity of the edges is important in order to avoid the occurrence of a crack or break in the rolled up glass ribbon. Even damage such as tiny cracks, e.g. Microcracks can be the cause of larger cracks or breaks in the glass ribbon. When rolled up, the top of the glass ribbon is under tension, and further, integrity of the surface of scratches, ridges, or other surface defects is important to avoid cracking or cracking in the rolled-up glass ribbon. Third, internal stresses in the glass due to production should also be as small as possible or absent in order to avoid the occurrence of a crack or break in the rolled up glass ribbon. However, since all three factors can only be optimally optimized in a commercial production, the susceptibility to breakage of such a rolled-up glass is further increased to the limits of its material properties that are present anyway. Thus, special precautions and conditions are important for the storage and transport of such a glass roll to avoid damage to the glass. In particular, such a glass roller must be protected from shocks and vibration-like loads. Such external mechanical stresses can otherwise lead to exceeding the breaking point of the glass and thus to cracking in the glass.

If e.g. a glass roll in a position in which the axis is approximately horizontal, deposited directly on a storage surface such as on a pallet, there is the problem that there is a concentration of stress in the contact area, which easily causes breaks in the glass ribbon.

The storage, transport and handling of flat expanded glass materials is necessary for thicker glasses that have too low a flexibility for rolling, such as flat glasses and known glasses for flat screens. A packaging for such flat expanded glass materials describes, for example, the US 2007/0131574 or the JP 048577/1990. However, such a package is not compact and totally unsuitable for packaging a glass roll.

The packaging of a rolled material on a roll, however, describes the WO 2008/123124. Here, a plate-shaped flange is described with an attached tubular part, which engages in the cavity of a winding core to protect against shocks for both sides of the roll. The two parts should each integrally formed from a polyolefin bead foam, which is to absorb the impact energy. Furthermore, a gap is provided between the upper edge of the rolled-up material and each flange as edge protection. For a glass roll, however, such a package is unsuitable, since the glass roll would be completely unprotected in their surface propagation between the flanges, and on the other hand, despite the space provided and the choice of material for the Roller holder in an inadmissible way vibration and impact energy entered into the glass. Also no safe way for storing and transporting many glass rolls is provided.

In a further development describes the JP 2009-173307 for the storage and transport of a sensitive rolled onto a winding core pressure measuring a form of packaging in which at both ends of the winding core, on which the pressure measuring arc is wound, a flange is formed, which is greater than the outer diameter of the wound pressure measuring arc. As a result, the pressure measuring arc is brought to a distance from the shelf. Now, unlike a pressure gauge, a glass film is a material that is easily broken. That is, with a pressure gauge, it is sufficient to make sure that the microcapsules formed on the surface do not burst for pressure measurement, but with a rolled up glass, it is necessary to make sure not only on the surface of the roll but also on the surface The edges of the glass ribbon, which form the lateral areas of the roll, no fractures arise. In particular, since the two lateral areas of the roll may be exposed to the outside with the edges of the glass ribbon, they easily become the starting point for breaks at the edges.

Here describes the WO 2010/038760 a further development for a glass roll. For a glass roll with side flanges rolled up on a winding core, various arrangements for buffering with introduced buffer materials between the lateral regions of the glass roll and the flanges will be described. This is to contact the edges of the glass ribbon with the flanges, which could lead to fractures on the edges to be avoided. For this purpose, laterally projecting intermediate layers curled between the glass tape layers are proposed, which fill only a part of the intermediate space and are not in contact with the flanges or which are in contact with the flanges in another proposed embodiment. However, cracks or breaks in the glass ribbon or at the edges may occur during winding or unwinding of the glass roll if the protruding areas of the intermediate layer become caught or caught. It can also come through shocks or vibrations during transport to a lateral displacement of the glass ribbon layers on the roll, which also leads to fractures of the glass ribbon or edge damage. A lateral displacement of the glass ribbon can in this case be done as a whole along the axis direction of the winding core or by the outer layers of the glass ribbon on the roll in each case with respect to the inner layers of the glass ribbon move laterally and the edges of the glass ribbon then stepwise over each other (lateral "telescoping"). In another embodiment, a separate buffer material is placed between the glass roll and the flange. As a result, although a lateral displacement of the glass ribbon layers on the roll could be reduced by impacts or vibrations during transport, but it comes in particular with transport-induced vibrations to a relative movement between the glass band edges and such a buffer material. Even with very small relative movements or stresses caused thereby at the edges of the glass ribbon, these can be damaged or cracks are induced in the glass ribbon. To avoid this, it is proposed in another embodiment to arrange this buffer material only in contact with the flange, but not in contact with the lateral areas of the glass roller. As a result, however, it can in turn come through shocks or vibrations during transport to a lateral displacement of the glass ribbon layers on the roll as a whole or to a lateral telescoping, which in turn can cause fractures of the glass ribbon or edge damage.

Furthermore, the describes WO 2010/038760 , which forms the closest prior art, the formation of a double-sided extended, projecting over the flanges axis, which rests on bearings in the form of sockets and is supported. This is intended to prevent rolling of the glass roller independently of the flanges. Also, such a structure or a plurality of such structures can be covered by a packaging box. A disadvantage of this solution, however, is that shock and vibration-like loads are transmitted to the glass roll without damping, which represents a high risk of breakage and cracking of the glass. Also, the glass roller is not secured against vibrations, shocks and a relative movement in the horizontal or vertical direction or against rotation. Furthermore, such a package can be loaded or unloaded only from two sides, which represents a major limitation in handling and logistics. As an alternative to this package with transversely directed glass roll, a package with vertically directed glass roll is described. Here are several glass rolls to be placed with their winding cores on perpendicular columnar elements, which are attached to the bottom of a box body. The disadvantage here, however, a wobbling of the glass rolls during transport. Although a sufficient spacing of the glass rolls or the filling of a buffer material between the glass rolls is proposed to prevent thereby caused fractures of the glass sheet, the edges, which are located on the footprint of the glass roll, not only by the autogenous pressure of the glass roll but in particular stressed by the shaking of the role in an inappropriate manner, which leads to cracks and breaks in the glass ribbon and edge damage. Furthermore, shocks and vibration-like loads are undamped here transferred to the glass roller or entered into the glass roller, which is a high risk of breakage and cracking of the glass.

The object of the invention is thus to avoid the disadvantages described above and to provide a packaging unit for receiving a rolled-up on a winding core glass, which reduces the risk of breakage and cracking of the glass during storage or transport. In a preferred embodiment, the packaging unit should be loadable or dischargeable from four sides.

The invention solves this problem with the features of claim 1 and claim 11. Further advantageous embodiments of the invention are described in the dependent claims 2 to 10 and 12 to 13.

The invention comprises a packaging unit for receiving a glass rolled up on a winding core. The winding core is part of the packaging unit. The glass can be rolled up in the form of a glass ribbon or a glass fiber onto the winding core. The glass can then be packaged and unloaded simply, safely and cost-effectively in this packaging unit, with the winding core, depending on the design, each having 4 sides with a handling burr such can be loaded or unloaded with a forklift. Furthermore, despite the simple construction of the winding core with glass roll in the X, Y and Z direction is secured against displacement or relative movement to the package. The X-direction is understood to mean a movement in the axial direction of the winding core relative to the packaging unit. As the Y direction, movement along the circumference of the winding core, i. understood a rotating movement of the same. The Z-direction is understood to mean a movement of the winding core in the vertical direction relative to the packaging unit. The rolled-up glass is unbreakable and shockproof stored in the packaging. The packaging unit is used for in-house transport as well as transport by truck, ship or plane.

As a system package, the invention further encompasses a distance-transport-stable package to protect the packaged glass material from direct external physical or chemical attack or impact. The packaging unit is integrated in the system packaging and suitable to carry the glass roll, it forms an inner part, which is surrounded by a protective outer packaging as of an outer skin. This consists of a lower packaging frame, side panels and a lid. In the system packaging, the glass roller has no direct connection to the side parts and the cover, whereby the glass roller is safely protected and no shocks or vibrations can be transferred from the outer skin to the glass roller. The system packaging is stackable and shocks and vibrations are not transmitted to the wrapped and packaged glass material, which makes it unbreakable packaged.

Above all, the glass material is a thin glass band or a glass foil with a thickness of less than 350 μm, preferably less than 250 μm, preferably less than 100 μm, more preferably less than 50 μm and at least 5 μm, preferably at least 10 μm preferably at least 15 microns. Preferred glass sheet thicknesses are 15, 25, 30, 35, 50, 55, 80, 100, 130, 145, 160, 190 or 280 μm. However, this may also be another glass material such as glass fibers or a glass laminate, in particular a glass-plastic laminate.

The glass sheet is a continuous long band of a certain length, wherein in a glass roll, the glass sheet may have a single continuous length or several shorter lengths are wound on a roll. Typically, such glass sheets have a width in the range of 5 to 2000 mm, preferably 50 to 1000 mm, more preferably 300 to 800 mm and a length of 5 to 10,000 m, preferably 200 to 1000 m. In one embodiment, a plurality of glass sheets may be wound side by side on a winding core. In another embodiment, glass foils can each be wound on a separate winding core, wherein the individual winding cores are then connected to each other axially. This can also be done by means of a continuous holder, which connect through the winding cores through the holding elements of the packaging unit.

Such glass sheets are prepared in a known manner in the down-draw process or in the overflow-downdraw fusion process (cf., for example WO 02/051757 A2 for the down-draw procedure as well WO 03/051783 A1 for the overflow downdraw fusion method). The shaped and drawn endless belt is wound on a glass roll and cut to specification.

Between the wound up glass sheet layers are interlaid to protect the glass surfaces or to stabilize the winding liners, which usually consist of paper or a polymer.

The packaging unit according to the invention comprises a winding core for a glass material that can be rolled up thereon, wherein the winding core has at least one extended region relative to the glass material. The winding core usually has an outer diameter of 100 to 800 mm, preferably 150 to 600 mm and may consist of any stable material such as wood, plastic, cardboard, metal or a composite material. Common winding core diameters are above all 300, 400, 500 and 600 mm. It may also have on the surface a suitable non-slip and optionally compressible coating or a structured surface. A winding core can be round or polygonal. Preferably, it is tubular, so that the holding elements can engage in the lateral pipe ends.

The winding core is longer than the width of the wound glass ribbon and according to the invention is laterally opposite the glass material. This laterally projecting part serves to fasten the winding core in the packaging unit so that the wound-up glass can be stored in the packaging unit in a contact-free and impact-proof manner.

At least one end, preferably both ends of the winding core, i. the winding core with its end faces, in each case lies positively on a support. That is, the outer periphery of the winding core in its extended portion is supported on the contour of a part of its circumference on a support. Preferably, in each case a section smaller than half of the circumference is enclosed in each case by a support. The support surface of the support here follows the outer contour of the winding core. Also, the winding core at its protruding or extended area more pointwise, i. rest on several points on the support or be held by this. In another embodiment, one or both supports are made in two parts, so that they respectively enclose the entire outer circumference of the winding core in its extended area. According to the invention, a support and, depending on the configuration, associated therewith receiving or fastening elements, which positions the support on the caddy, executed rigid. The bending stiffness of the supports is dimensioned such that the position of the supports to each other during storage and transport of a glass roller does not change so that a safe storage of a winding core end on a support would not be guaranteed. For each core diameter is one or each two matching supports assigned. The packaging unit is equipped to accommodate a specific hub diameter with the corresponding supports. The supports can be changed accordingly and are securely connected to the transport frame. The supports can be made of any stable material, such as wood, wood composites, plastic or metal.

The supports are, optionally, depending on the design, also connected by means of additional receiving elements with a transport frame or form itself as two opposite side walls part of the transport frame. This can be a stable frame made of metal, plastic, wood or preferably a wood composite material such as laminated wood. The frame must have the lateral forces, e.g. in case of a transport-related tilting of the packaging unit, and is designed with sufficient bending stiffness. Preferably, the caddy has a closed plate as a floor. The frame is made up of two lateral struts and two side walls supporting or forming the supports. Connected or forming with these side walls, further side parts can be provided which form an abutment for the winding core at its head ends and project beyond the bearing surface of the supports.

In order to absorb shocks and vibrations can be arranged on the underside of the transport frame vibration elements, for example at the four corners. Such vibration elements can be any suitable damping elements. It can be mounted on the underside of the transport frame several flat or selectively distributed damping elements, for example as buffer elements or shock absorbers in the corner regions or as strips on two opposite lateral areas. As damping elements are for example buffer elements or shock absorbers made of an elastomer such as rubber, silicone or rubber or foam or elastic springs, in particular rubber springs for use. However, it is also possible for example to use damping elements containing metal mesh or gas-damped elements. In particular, rubber-metal buffers are preferred. It can be used according to the invention all suitable damping elements which are well known to the skilled person. Depending on the specific task on a damping element, the deformation path and the damping can be selected smaller or larger by suitable shape and / or material selection. In the dimensioning and dimensioning of the damping elements in each case to be resilient or damping mass of the glass roller or the packaging unit is taken into account. In one embodiment, these are gas pressure damping elements which make it possible to adjust the damping via an adjustable gas pressure in each case to the mass of the glass roll to be packed. Also, the entire underside of the transport frame may consist of a layer of a vibration-damping material. Such damping plates may consist of cork, rubber, rubber-metal compounds or equivalent. Preferably vibration damping mats or vibration damping plates are used for this purpose. In this way it can be effectively prevented that shocks or vibrations, which act from below on the packaging unit, are inadmissibly transferred to the packaging unit and are transmitted via the latter into a glass roll to be transported. In all cases, a swing in the natural frequency of the mass to be packaged should be counteracted or avoided

For attachment of the winding core in the packaging unit it is pressed against the support with a holding device and clamped, wherein the holding device acts on the winding core via a holding element. This is mainly a movement of the winding core in the Y and Z direction, i. a rotation and hopping or swinging of the winding core avoided. The holding device is preferably connected as anchoring to the transport frame, but it can also be connected or anchored to the support. The holding device is in a preferred embodiment, a clamping device such as a closure tensioner. But it can also be a belt, belt, metal band, metal strap or the like. According to the invention, everything is suitable, which brings about a frictional connection.

The connection of the holding device to the winding core forms a holding element which transmits the force of the holding device to the winding core and presses it against the support for mounting. In the preferred embodiment of a tubular winding core, the holding element engages positively in at least part of the winding core interior, that is, it follows with its contact surface to the winding core whose inner contour, wherein the contact surface with tightened holding device exerts a compressive force against the winding core and this presses on the support , As a result, the winding core is securely and firmly connected to the packaging unit. The contact surface of a holding element may be a circle segment at the end of the inner winding surface. The connection between the holding element and holding device can also be done via a clamping strap.

In another embodiment, the winding core has at its end face in each case a receptacle for the holding device in the form of a recess, such as a recess. a special recess or bore or anchor such as e.g. an eyelet, in which the holding element, such as a closure tensioner, engages. In particular, this is chosen in winding cores, which have an at least predominantly closed end face.

For a secure mounting of the winding core is clamped by the holding device with a sufficient pressing force on each support, which among other things depends on the diameter of the winding core. On each end side of the winding core, for example, a holding force of at least 60 N, preferably at least 20 N, more preferably at least 8 N and up to 5000 N, preferably up to 1000 N, more preferably up to 250 N usual to the winding core each on each to brace the two supports. When using a closing clamp this holding force is dependent on the lever travel.

In a particularly preferred embodiment, a holding element with a holding device are arranged at each extended end of the winding core and both holding elements are interconnected by the winding core by means of a holder, a clamping axis. Advantageously, the position of the holding elements is fixed on the clamping axis in order to prevent displacement of the holding elements on the clamping axis. This can e.g. done by appropriate locking elements or abutment. Such a connection of the holding elements together increases the stability of the packaging unit enormously, especially against movements and vibrations in the X-direction and Z-direction. It is created a stable and easy to handle composite bearing core-clamping elements.

In another embodiment, a continuous retaining element is arranged, ie it extends through the interior of the winding core. The contact of the holding element to the inner surface of the winding core and thus the surface for transmitting the compressive forces on the winding core may be over the entire surface or even part of the surface on the head sides and possibly also in the form of knobs or longitudinal or horizontal stripes. These contact points can be designed for further damping and securing the fixation of an elastic material, such as a rubber or a rubber coating. Also, a shock-absorbing and force-transmitting material may be arranged as a separate insert between the holding element and the winding core, such as a felt or rubber material or a foamed polymeric material, such as a polyolefin, especially a crosslinked polyolefin, or a foamed polymer of polyethylene or polyurethane. The foams are preferably closed-cell. As a holding device is used in this embodiment, a tension belt or belt, which is designed as a solid belt material or as a strap made of metal. For this purpose, the retaining element projects beyond the supports on both sides. In each case, a tension belt extends around these protruding portions of the support member and a retaining anchor, which on the support or attached to the transport frame. For the positioning of the tensioning belt, a recess or fixation can be provided on the retaining element.

In an alternative embodiment with such a continuous holding element of the winding core is pressed with such a holding element with a belt, strap or metal strap or metal strap as a holding device against the supports, which extends in the axial direction along the support member and the transport frame below the bottom plate or below the frame parts encloses. Again, the holding device can be attached to both sides of a holding anchor in a further alternative.

Another alternative embodiment of a holding device with holding element consists in a fixation of the winding core by means of locking the winding core on the support and locking of the retaining element on the support or an abutment connected to the support. For this purpose, a pin, e.g. in the form of a bolt or pin, mounted on the support surface of the support for the winding core, which engages when placing the winding core in a bore or in a blind hole on the bearing surface of the winding core. As a result, the winding core is secured against movement in the X and Y directions. To secure the winding core against movement in the Z direction, a holding element is provided, which extends into the interior of the winding core, rests on this and is held on one side or preferably extends through the entire width of the interior of the winding core on this rests and is held on both sides. At the end of the or the holding element, it is detachably connected to the support and fixed thereto and thus holds the winding core on the support surface of the support fixed. By way of example, the support is extended in addition to the support surface and protrudes as an abutment for the winding core on the head side beyond the height of its wall thickness, so that it faces the head side of the support member and adjacent thereto. In the area of the adjacent holding element, a bore is provided, through which a holding device, e.g. a lock or tension, especially a tension pin, a clamping sleeve or a clamping sleeve is performed. This engages in the holding element and fixes this. However, the retaining element can also be connected to the bearing or abutment in any manner known to the person skilled in the art. Alternatively, in the case of a closed head side of the winding core, this can be connected to the support by means of a clamp, bolt or other type known to the person skilled in the art.

In order to ensure a possible vibration-free and unbreakable storage of a glass roll in the packaging unit, a damping element is arranged between the winding core and support. This can be any suitable material. Preferably, a felt or rubber material or a foamed polymeric material, e.g. a polyolefin foam, in particular a crosslinked polyolefin foam, or else a foamed polymer of polyethylene or polyurethane. The foams are preferably closed-cell.

Furthermore, in order to ensure the most vibration-free and unbreakable storage of a glass roll in the packaging unit, one or more vertically acting damping elements can be arranged between the support and the transport frame. These include all suitable damping elements, as known to those skilled in the art.

In order to increasingly inhibit movement in the X direction, the winding core is formed on at least a portion of the surface of its lateral ends, i. the head sides of the winding core secured by lateral thrust bearing. These are connected to the transport frame and / or the support and extend at least over a portion of the surface of the lateral hub ends. They can also form part of the supports at the same time. An abutment is formed by a wall part, which covers a part of a winding core end face laterally. The wall part may in this case be a part of the support or be connected as a separate side part of the transport frame with the support. Between the end face of the winding core and the abutment, in each case a damping element such as a felt or rubber material or a foamed polymer material can be attached.

Such an inventive packaging element serves on the one hand the internal handling. In this case, a glass roll packed according to the invention can be transported transversely to the axial direction from two sides with a handling device, such as e.g. picked up and transported by a forklift or lifting tool. In the preferred use of a tubular winding core, a glass roll packaged in accordance with the invention may also be fed in the axial direction from two sides with a handling device, e.g. can be picked up and transported by a forklift or lifting tool and thus enables an all-sided or four-sided loadability or unloadability, which brings significant logistical advantages.

On the other hand, to create a secure packaging for a long-distance transport stable transport or a longer storage with protection against dust and dirt, it is part of the invention To provide system packaging. Here, the described packaging unit is used for the production of a transport system for rolled-up rolled glass material, in particular thin glass, wherein the packaging unit is carried by a packaging frame and the system packaging comprises a side cover and a cover as outer skin.

The described packaging unit forms its own inner part of the system packaging, wherein the packaging unit stands up to itself against all impact and vibration loads as well as acting forces, e.g. when tilting the system packaging forms a secure and stable support and packaging for the glass roll. In addition, the system packaging offers handling for stacking and container-specific transport, as well as protection against external influences such. Dirt, moisture, sunlight or falling objects.

The transport frame of the packaging unit stands with its vibration elements on a packaging frame, which forms the bottom of the system packaging. The vibration elements may also be connected to the packaging frame so as to be non-slip, e.g. through appropriate brackets. The packaging frame is made of wood, metal or plastic and is formed in particular by a transport pallet, such as a Euro pallet 800 × 1200 mm or 845 × 1245 mm in the grid box dimension. The packaging frame is preferably equipped with 3 skids for handling in high-bay or automated transport. The surface of the packaging frame may preferably form a closed loading area in the form of a separate plate. The packaging frame can also be made in one piece. The cargo bed may have a honeycomb structure or be stiffened in any way and made of any suitable material to prevent overall bending of the packaging rack.

On the outer sides of the packaging frame are receptacles for the side parts, which form the side panel provided. The side panels are part of the system package and may be implemented in any manner known to those skilled in the art. As material for the side parts of any material is suitable, which ensures sufficient stability, such as a wood, laminated wood, metal or plastic. Depending on the transport or storage requirements, adequate gas tightness or environmental resistance is taken into account in the selection. In a preferred embodiment, the side parts are formed from a Faltbox system. This has the advantage of a simple one-piece side panel, which consists in particular of plastic hollow panels for weight saving. By the weight saving transport costs can be saved and also a return transport of a system packing in the context of a deposit system can be simplified by the fact that the system packing altogether can be combined simply and space-savingly. Such plastic hollow panels for a foldable side panel may consist of a lightweight ABS plastic or a stable polyethylene. Its wall thickness is, for example, 10 mm for a load of 1000 kg for stacking the system packaging or a wall thickness of 6.5 mm for a load of 500 kg load. With a weight of approx. 200 kg for a system packaging with a 1000 m wound glass band of 100 μm thick, 6 system packages could be stacked on top of each other in the first case.

The side cover is closed with a lid, which stabilizes the side parts circumferentially at the upper edge by these engage in a receptacle on the lid. To facilitate placement when stacking the system packaging, adjusting elements are provided in a preferred embodiment on the top of the lid. These may be, for example, rails which laterally guide and hold runners on the underside of the system packaging to be placed thereon.

In a further embodiment according to the invention, it can be provided that for the stacking of at least two system packages one above the other and / or the connection in the arrangement next to one another, they can be assembled into one another like a module. For this purpose, on the footprint or the shelves below and at the top of the system packaging, and / or laterally cooperating receiving devices are arranged for a further system packaging. The receiving devices can cooperate in a form-fitting manner by providing, for example, a corresponding recess on a system packaging, in which an increase in another system packaging engages. The receiving devices can also cooperate non-positively by two system packages by means of a recording device are firmly locked together or can be firmly connected to each other in any suitable manner.

In a further embodiment of the invention can be provided that the system package is designed so that it can be closed gas-tight and the interior is filled with a clean gas. This allows a dust-free and dirt-free clean room inside the system packaging which meets all the conditions required by the protection or cleanliness requirements of the glass. This is particularly important, for example, in the case of coated thin glasses, when the coating is sensitive to substances which may be affected by environmental influences or also to glass substrates for displays, such as liquid crystal displays or organic LED displays, where due to their intended use, clean glass without dirt adherence and dust is required. Depending on the requirements, all inert gases such as argon, nitrogen or carbon dioxide are preferred as the filling gas. The relative humidity is preferably set in a range of 5-30%. Depending on the requirement, an overpressure can also be generated and maintained in the interior of the system packaging in order to prevent ingress of ambient air.

The invention comprises the use of a described packaging unit and a described system packaging for the vibration-reduced storage and the vibration-reduced transport of a rolled up on a winding core glass, in particular a thin glass. Here, the storage of the winding core with the positive and non-positive holder in the packaging unit and the integrated damping elements acts as vibration or vibration or shock absorbers in all possible spatial directions. They wholly or partially reduce or absorb the transmission of vibrations and shocks during handling, storage or transport of the packaging unit from outside to inside the glass roll such that the entry of shocks and vibration loads on or into the glass roll effectively reduces to an extent which allows safe transport or safe storage of a glass roller.

When transporting a glass roller, there are four different forces acting on the packaging unit. First, there is the weight F _G , which presses from the mass vertically down to the container. It is composed of the mass m of the packaging unit with packed glass roll and the gravitational acceleration g: F = m × g. Another occurring force is the inertial force F. It acts when accelerating the means of transport against the direction of travel and when braking exactly with the direction of travel, so it acts against the change. The inertial force depends on the mass m and on the acceleration or deceleration a of the packaging unit with a packed glass roll: F = m × a. The third acting force is the centrifugal force F _Z. It is a form of inertial force and occurs when cornering when the packaging unit retains the previous motion. The centrifugal force depends on the mass m of the packaging unit with packed glass roll, the speed v of the means of transport and the curve radius r: F _Z = m × v² / r , The last acting force is the frictional force F _R. It delays in dependence

from the pad, the movements and displacements of the packaging unit in the transport container, such as a container or truck. The friction force is composed of the weight force F _G and the friction factor μ, which depends on the base: F _R = F _G × μ.

In road transport by truck, the most common loads are acceleration, deceleration and vibration while driving. Accelerations up to 1.5 times the weight, ie 1.5 g can act. In shipping, loads due to acceleration and braking do not play a major role. The vibrations affect the packaging unit while driving. In heavy seas, the ship can tilt up to 30 ° around the longitudinal axis. This results in accelerations up to 0.8 g. When the ship is submerged, loads of up to 2 g can be felt at the front and rear of the ship. The loads of rail transport by rail are similar to those in truck transport. Here are also stresses of the packaging unit when braking and accelerating the train. The largest loads occur when maneuvering the individual cars. If the freight cars on a hill, the so-called Ablaufberg, are decoupled and are steered by their own gravity on certain shunting tracks, accelerations up to 4 g. When air transport occur in comparison to the other means of transport on the largest loads. Most of the forces work at the start and landing of the machine. In addition, large strains occur in turbulence.

The vibration frequencies which act on a packaging unit during transport vibration loads are 1 to 200 Hz for truck, ship and rail transport and 2 to 300 Hz for air transport.

The stresses which a packaging unit according to the invention and its use withstand in a transport system that is resistant to long distance transport are in the ASTM D4169-09 "Standard Practice for Performance Testing of Shipping Containers and Systems". The packaging unit according to the invention and its use in a transport system that is resistant to long-distance transport meets the requirements of the test methods of this standard. Taking into account all these forces acting the invention fulfills Packaging unit or packaging system packaging the safety requirements for a glass roll packed therein for transport without damaging the glass roll or the glass roll glass.

The following embodiments of a packaging unit and their use in a system packaging are intended to illustrate the invention by way of example:

1 Packaging unit Example 1 in perspective view

2 Packaging unit Example 1 in longitudinal section

3 Packaging unit Example 2 in perspective view

4 Packaging unit Example 3 in perspective view

5 Packaging unit Example 4 in section of a section

6 System packaging in perspective as an exploded view

1 and 2 show in a first example a packaging unit 11 with a wrapped glass roll 10 , which on the winding core 21 is wound up. The glass roll 10 has a width of 580 mm and consists of 1000 m wound thin glass with a thickness of 70 microns. The weight of the glass is 120 kg. The winding core 21 has an outer diameter of 400 mm and a width of 730 mm, ie it protrudes on each of its head sides 75 mm over the wound glass over. It is shaped as a hollow cylinder with a wall thickness of 10 mm and consists of a solid cardboard material. On the head side lies the winding core 21 with its outer diameter on each side, each on a support 31a . 31b on. Connected with the supports are counter-bearings 32a . 32b , which along the support surface on the head side to the winding core 21 connect and prevent it from moving axially in the X direction. The supports 31a . 31b are rigid with the transport frame 6 connected. In order to ensure safe storage and support of a winding core with its front sides on the two supports, the support was carried out in bending resistant. The transport rack 6 consists of the two longitudinal frame parts 61 which the supports 31a . 31b support and the two transverse frame parts 62 , The frame parts 61 . 62 are connected with each other and serve to ensure the stability of the construction. They are from a floor plate 63 carried. For supporting and suspension of the frame parts 61 . 62 on the bottom plate 63 serve damping elements 71 as a vibration damper, which between the frame parts 61 and or 62 and the bottom plate are arranged. They prevent or reduce shocks when placing the packaging unit 11 or vibration and vibration during transport, which from below over the bottom plate 63 act, be transferred to a wrapped glass roll. Alternatively, the bottom plate 63 directly with the frame parts 61 and 62 firmly connected and the damping elements 71 are mounted below the floor plate. As damping elements 71 Rubber-metal buffers were used, as offered for example by the company STS vibration technology under the designation type MF60. The attachment of the winding core 21 on the supports 31a . 31b takes place in the embodiment of this example 1 by means of the holding elements 41a . 41b , which on the inner surface of the winding core 21 , opposite the bearing surface of the winding core 21 on the supports 31a . 31b , rest. For better stabilization, the retaining elements 41a . 41b through a clamping axis 42 interconnected, extending through the interior of the hub 21 extends. In another embodiment, the packaging unit 11 be performed without such a clamping axis. For fixing the winding core 21 and optionally the glass material wound thereon 10 on the supports 31a . 31b become the holding elements 41a . 41b each with a holding device 51 in the direction of the bearing surface of the supports 31a . 31b pressed and thus the winding core 21 at its headboards with these firmly attached. The contact force is such that slipping of the winding core 21 in the Y direction, ie a rotation on the supports 31a . 31b or in the Z direction, ie lifting or vibrating on the supports 31a . 31b is prevented. As a holding device 51 In this example, this is a closing clamp 512a . 512b with tension straps 511a . 511b used. The tension of the winding core 21 by means of the retaining elements 41a . 41b via tensioning straps 511a . 511b which with the holding elements 41a . 41b are connected and the pulling force of the closure tensioner 512a . 512b transferred to this. The closing clamps 512a . 512b are with the transport rack 6 connected as anchoring. The contact force here was 25 to 50 N and ensured that on the winding core 21 rolled up glass 10 safe from slipping or before a relative movement to the packaging unit. For further shock absorption and prevention or reduction of transmission of vibration from the supports 31a . 31b on the winding core 21 and thus on the glass material 10 are between the bearing surfaces of the supports 31a . 31b and those of the winding core 21 damping elements 72a . 72b arranged. They consist of a solid felt material, such as wool felt of 70% wool and 30% viscose staple, having a specific gravity of 0.36 g / cm ³ , a thickness of 20 mm, a length of 1,600 mm and a width of 300 mm ,

3 shows a packaging unit in a second example 13 with another embodiment for a holding element with a holding device which is described only for one side, but is carried out on both sides. The rest of the construction is identical to Example 1. The retaining element 43 is executed here continuously, ie it extends through the interior of the winding core 21 and towers over this and over the supports 31a . 31b and about the counter-bearings 32a . 32b out. The contact of the retaining element 43 to the inner surface of the winding core 21 and thus the points for transmitting the compressive forces to the winding core 21 can be performed over the entire surface as a separate insert or as a coating of the retaining element, but also only on the head sides or selectively in the form of knobs or longitudinal or horizontal stripes. These contact points, which in 2 are not shown, can be carried out for further damping or to compensate for unevenness and for secure full-surface transmission of the pressure forces of an elastic material. In this example, a 1.5 mm thick rubber coating of the retainer surface was provided in contact with the winding core.

As a holding device 52 served in this example 2, a tension belt, which is designed as a solid belt material or as a metal strap. In each case a tension belt 52 runs around the protruding areas of the retaining element 43 and a retaining anchor 521 , For the positioning of the tensioning belt 52 can on the holding element 43 a recess or fixation may be provided. The anchorage for this holding element 52 forms a retaining anchor 521 , which in each case at the Auflagern 31a . 31b or alternatively on the caddy 6 is attached. The contact force here was 8 to 20 N and ensured that on the winding core 21 rolled up glass 10 safe from slipping or before a relative movement to the packaging unit 11 ,

Alternatively to Example 2, instead of two two-sided holding devices 52 also a continuous holding device 53 be provided as it is 4 for a packaging unit 14 shows. The holding device 53 runs in the axial direction along the holding element 43 and encloses the caddy 6 below the bottom plate 63 or below the frame parts 61 , Alternatively, the holding device 53 Also be attached to both sides of a holding anchor. The holding device 53 consists of a solid belt material or a metal strap. The contact force here was 15 to 40 N and ensured that on the winding core 21 rolled up glass 10 safe from slipping or before a relative movement to the packaging unit 11 ,

A further alternative embodiment for a holding device with holding element in a fourth example shows 5 in a section of a packaging unit. Shown is in cross section one side of the attachment of the winding core. The winding core 22 lies on the support surface 331 of the support 33 on. For damping is between the bearing surface of the winding core and the support surface 331 the Auflagers a damping material 73 made of felt or rubber. Here was the same wool felt as in the example 1 and 2 used. In the extension of the Auflagers 33 is integrally connected to an abutment 34 executed, which is the head side of the winding core 21 limited and surmounted. The anvil secures the hub 21 against a movement in the X direction. The winding core 21 is in the area of its edition on the support 33 with this by a holding device 55 , eg a bolt connected. The bolt 55 Can be fixed in the support 33 be anchored. The winding core 21 has a corresponding hole or blind hole for receiving the holding device 55 , The holding device 55 secures the winding core 21 against movement in the X and Y directions. To secure the hub 21 against a movement in the Z direction is a holding element 44 provided, which is preferably through the entire width of the interior of the winding core 21 extends, rests on this and is held on both sides. In the extension of the counter bearing 34 is in the area of the adjacent holding element 44 mounted in this a bore through which a holding device 54 to be led. This engages in the holding element 44 and fix this. The holding device 54 here is a dowel pin. Alternatively, the retaining element 44 also in an extension the counter bearing 34 penetrate and on the outside of the anvil 34 or the support 33 be tense.

6 shows an exploded view of a system packaging according to the invention 12 from a folding box 8th and a packaging unit 11 according to example 1. The folding box 8th consists of a packaging rack 81 in the design of a transport pallet with a length of 1245 mm and a width of 845 mm. The bottom plate 811 of the packaging rack 81 can be designed to protect against slipping out of rubber. On the bottom plate 811 stands even and slip-proof the packaging unit 11 , This is to protect against external environmental influences of a side panel in the execution of a foldable ring, the Faltseitenenteilen 82 surrounded, which with a lid 83 is closed. Depending on Height of the winding core 21 and the rolled up glass material 10 Can the one-piece foldable cladding 82 be executed at a suitable height. To save weight, it is made of plastic cellular sheets. Such a folding box 8th is offered for example by Fa. KIGA Kunststofftechnik GmbH in Wilnsdorf. With such a system packaging, a packaged glass roll 10 In addition to vibration and vibrations, it is also safe to protect it from dust, moisture, sunlight and unwanted contact, eg from falling objects.

• – Mechanical handling (Schedule A / Sec.10.3.1 und 10.3.2) mit dem Fork Lift Truck Handling (Assurance Level 2, Fallhöhe Palettengewicht < 226,8 kg; 229 mm / > 226,8 kg; 152 mm) und dem Truck Handling (Assurance Level 2, Schockbeschleunigung 1,22 m/s)
• – Warehouse Stacking (Schedule B / Sec. 11.3, Assurance Level 2, L = M × J × ((H – h)/h) × F (Verweildauer 3 sec. auf errechneter Auflast, F wird nach ASTM um 30% reduziert da volle Ladeeinheit im Test)) [Es gilt hierbei: L = Auflast; M =Prüflingsgewicht; J = 9,8 N/Kg; H = maximale Stapelhöhe im Lager (kundenspezifisch); h = Prüflingshöhe; F = 4,5 (abzüglich 30% da Palettentest)]
• – Vehicle Stacking (Schedule C / Sec. 11.4, Assurance Level 2, L = Mf × J × ((l × w × h) / K) × ((H – h/h) × F (Verweildauer 3 sec. auf errechneter Auflast, F wird nach ASTM um 30% reduziert da volle Ladeeinheit im Test)) [Es gilt hierbei: L = Auflast; Mf = 160 kg/m³; J = 9,8 N/Kg; l = Prüflingslänge; w = Prüflingsbreite; h = Prüflingshöhe; K = 1 m³/m³; H = 2,7 m (Containermaß); F = 7 (abzüglich 30% da Palettentest)]
• – Vehicle Vibration I-1 und I-3 (Schedule E), Truck Spectrum (Assurance Level 1, Overall g_rms Level: 0.73 / Prüfzeit: 30 Minuten in Transportlage)
• – Vehicle Vibration I-2 (Schedule E), Air Spectrum (Assurance Level 2, Overall g_rms Level: 1.05 / 120 Minuten in Transportlage)

Overall g_rms Level bedeutet hierbei der Effektivwert der Beschleunigung einer zufälligen Vibration und definiert sich aus der Quadratwurzel der Fläche unter der Kurve der spektralen Leistungsdichte der Beschleunigung (acceleration spectral density (ASD)).A glass packaged roll in accordance with Examples 1-4 was packaged in accordance with the American Society for Testing and Materials Packaging Testing Standard ASTM standard D4169-09 , tested. The following tests were carried out:

• - Mechanical handling (Schedule A / Sec.10.3.1 and 10.3.2) with the Fork Lift Truck Handling (Assurance Level 2, drop height pallet weight <226,8 kg; 229 mm /> 226,8 kg; 152 mm) and the Truck Handling (Assurance Level 2, shock acceleration 1,22 m / s)
• - Warehouse Stacking (Schedule B / Sec. 11.3, Assurance Level 2, L = M × J × ((H - h) / h) × F (Dwell time 3 sec on calculated load, F is reduced by 30% according to ASTM da full load unit in the test)) [L = load; M = specimen weight; J = 9.8 N / kg; H = maximum stacking height in the warehouse (customized); h = test piece height; F = 4.5 (minus 30% since pallet test)]
• - Vehicle Stacking (Schedule C / Sec. 11.4, Assurance Level 2, L = Mf × J × ((l × w × h) / K) × ((H-h / h) × F (Dwell time 3 sec on calculated Load, F is reduced by 30% according to ASTM because full load unit is tested)) [L = load, Mf = 160 kg / m ³ , J = 9.8 N / kg, l = specimen length, w = specimen width h = test piece height K = 1 m ³ / m ³ H = 2.7 m (container dimension) F = 7 (minus 30% of pallet test)]
• - Vehicle Vibration I-1 and I-3 (Schedule E), Truck Spectrum (Assurance Level 1, Overall g _rms Level: 0.73 / _{Test Time} : 30 minutes in transport position)
• - Vehicle Vibration I-2 (Schedule E), Air Spectrum (Assurance Level 2, Overall g _rms Level: 1.05 / 120 minutes in transport position)

Overall g _rms level means the effective value of the acceleration of a random vibration and is defined by the square root of the area under the curve of the spectral power density of the acceleration (acceleration spectral density (ASD)).

The inventive packaging of the above examples met the guidelines of the test standard ASTM standard D4169-09 ,

It is understood that the invention is not limited to a combination of the features described above, but that the skilled person will arbitrarily combine all features of the invention, as far as appropriate, or use it alone, without departing from the scope of the invention. LIST OF REFERENCE NUMBERS 10 glass role 11 . 13 . 14 Packaging Unit 12 system packaging 21 . 22 winding core 31a . 31b . 33 In stock 311 Bearing surface of the support 32a . 32b . 34 thrust bearing 41a . 41b . 43 . 44 retaining element 42 release axle 51a . 51b . 53 . 54 . 55 holder 511a . 511b instep strap 512a . 512b Latch clamps 6 Caddy 61 . 62 Frame parts of the transport frame 63 Base plate of the transport frame 71 vibrators 71 . 72a . 72b . 73 damping elements 8th folding box 81 packing frame 811 baseplate 82 Faltseitenteile as side paneling 83 cover

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• US 2007/0131574 [0006]
• JP 048577/1990 [0006]
• WO 2008/123124 [0007]
• JP 2009-173307 [0008]
• WO 2010/038760 [0009, 0010]
• WO 02/051757 A2 [0017]
• WO 03/051783 A1 [0017]

Cited non-patent literature

• ASTM D4169-09 [0048]
• ASTM Standard D4169-09 [0062]
• ASTM Standard D4169-09 [0063]

Claims (15)

Packaging Unit ( 11 . 13 . 14 ) for receiving a rolled up on a winding core glass ( 10 ) comprising a winding core ( 21 . 22 ), two supports ( 31a . 31b . 33 ) and a transport rack ( 6 ), the glass material ( 10 ) on the winding core ( 21 ) is rollable and the winding core opposite the glass material ( 10 ) has at least one extended region and that the outer circumference of the winding core ( 21 . 22 ) in its extended region of the contour of at least part of its circumference following a support ( 31a . 31b . 33 ) and the support ( 31a . 31b . 33 ) on the transport rack ( 6 ), characterized in that in the region of the extended region of the winding core ( 21 . 22 ) is provided, which with a holding element ( 41a . 41b . 43 . 44 ), which by means of a holding device ( 51a . 51b . 53 . 54 . 55 ) the winding core ( 21 . 22 ) on the support ( 31a . 31b . 33 ) braced. Packaging unit according to claim 1, wherein in the region of the extended region of the winding core ( 21 . 22 ) a cavity is formed, which forms a receptacle and the holding element ( 41a . 41b . 43 . 44 ) follows the contour of at least part of the cavity. Packaging unit according to claim 2, wherein the winding core ( 21 . 22 ) is tubular. Packaging unit according to one of the preceding claims, wherein on each side of the winding core ( 21 . 22 ) a holding element ( 41a . 41b ) is arranged and both retaining elements ( 41a . 41b ) through the winding core ( 21 . 22 ) are interconnected by a holder. Packaging unit according to one of claims 1 to 3, wherein a continuous retaining element ( 43 . 44 ) inside the winding core ( 21 . 22 ) is removably arranged. Packaging unit according to one of the preceding claims, wherein the holding device ( 51a . 51b . 53 . 54 . 55 ) is a closure tensioner or a belt, strap, metal strap or metal strap. Packaging unit according to one of the preceding claims, wherein the winding core on each support with a holding force of at least 60 N, preferably at least 20 N, more preferably at least 8 N is braced. Packaging unit according to one of the preceding claims, wherein the winding core is braced on each support with a holding force of up to 5000 N, preferably up to 1000 N, particularly preferably up to 250 N. Packaging unit according to one of the preceding claims, wherein between winding core ( 21 . 22 ) and supports ( 31a . 31b . 33 ) a damping element ( 72a . 72b . 73 ), in particular a felt material, a rubber material or a foamed polymer is arranged. Packaging unit according to one of the preceding claims, wherein between winding core ( 21 . 22 ) and retaining element ( 41a . 41b . 43 . 44 ) A damping element, in particular a felt material, a rubber material or a foamed polymer is arranged. Packaging unit according to one of the preceding claims, wherein with the transport frame ( 6 ) connected lateral abutment ( 32a . 32b . 34 ) are arranged, which extend at least over a portion of the surface of the lateral winding core ends. Packaging unit according to one of the preceding claims, wherein below the transport frame ( 6 ) Vibration elements ( 71 ) are arranged. Use of a packaging unit ( 11 . 13 . 14 ) according to one of the preceding claims for the production of a transport system that can withstand transport ( 12 ) for rolled up glass material ( 10 ), in particular thin glass, wherein the packaging unit ( 11 ) from a packaging rack ( 81 ) of wood, metal or plastic, in particular a transport pallet is worn and the system packaging ( 12 ) a side panel ( 82 ). Use of a packaging unit ( 11 . 13 . 14 ) according to claim 13, wherein the side paneling ( 82 ) is formed from a Faltbox system, which consists in particular of plastic hollow panels. Use of a packaging unit ( 11 ) according to claim 13 or 14, wherein the system package ( 12 ) continue to cover ( 83 ), which has adjusting elements for placing a further system packaging.

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