DE102014213017A1 - storage element - Google Patents

Abstract

The invention relates to a storage element which is attached in particular to the back of the backrest of a vehicle seat. It is held by means of a holder and movably adjustable between an upright position and a substantially horizontal position. The storage element is transparent at least in a partial area. The storage element is associated with a display, which is mounted in particular on the back of the backrest of a vehicle. The storage element forms in the upright position a display lens for the display and in the substantially horizontal position a table or a functional surface.

Description

The present invention relates to a storage element, which is movably adjustable between an upright position and a substantially horizontal position, in the substantially vertical, upright position forms a display lens for a display and forms a table or a functional surface in the horizontal or oblique position. In particular, such a storage element is a built-in seat folding table of a vehicle interior.

In passenger transport vehicles, such as airplanes, trains, ferries or buses, passenger seats are often associated with storage elements that can be brought from an upright rest or stop position to a substantially horizontal user position. In the upright position they should not restrict the freedom of movement or legroom of a passenger as possible and, if they are placed in head position in holding position, they should not interfere with the field of view. In the user position, they should be multifunctional in a confined space as a table, e.g. for storing trays with food or for storing drinks, as a storage area for personal items or as a control surface for electronic devices. It is known that such a storage device as a storage element in the form of e.g. a one-piece or segmented folding table is attached to the backrest of a passenger seat arranged in front of the passing seat.

For example, this describes DE 198 20 732 C1 such a passenger dining table made of a thin drawn polycarbonate (PC) with a hard foam insert and / or with single chambers for stiffening. The disadvantage of this solution, however, is that in an upright holding or rest position, the table surface conceals everything there. If a screen is located in this position, the display would be obscured by the tabletop.

Passing increasingly monitors or displays or display devices are provided which, as well as a folding table, are also integrated to save space in the backrest of a passenger seat arranged in front of the passenger seat, so-called in-seat screens. Such displays are then in good viewing height above the user position of a storage element. Such displays are used to reproduce passenger information such as security, driving route or other travel information, or even for entertainment. But they can also serve as a display device for connectable mobile devices. The WO 2014/001155 describes in addition to a permanently installed screen a removable integrated visual display device.

Also the WO 99/04381 describes a detachable display which is mounted on the back of a vehicle seat. Also, a folding table is attached to the rear of this vehicle seat. The display is exposed when the folding table is in the horizontal user position and is hidden from the folding table and protected when the folding table is in an upright folded position. However, passengers would like to receive information or entertainment while traveling on the display when the folding table is collapsed for greater freedom of movement. However, this does not allow this solution.

The US 2006/0075934 suggests the arrangement of two displays and a folding table with integrated control panel in the backrest of a passenger seat. The one display is always visible and mounted outside of the folding table in its upright position, the other display is completely covered by the folding table in its upright position. The control panel is rotatably arranged in the folding table in the horizontal position of the folding table, so that its back can be used by the rotation of the keypad by 90 ° as a storage table eg for food. The disadvantage here is the costly provision of a second display device, which also brings, especially for aircraft, a not negligible additional weight burden. Another disadvantage is also a weight-increasing and expensive construction of the folding table.

The DE 10 2012 215 629 A1 describes a display system as e-paper, with the display built into the folding table, so that the displayed information can alternatively be seen in the upright or in the horizontal position of the table. A disadvantage of this solution is that the sensitive electronic display is exposed to the rough and constant movement stresses of the folding table. On the other hand, the folding table must be made thick enough to accommodate a display while maintaining enough stability. A further disadvantage is that in the embodiment of a display system on the underside of the table, the display is not visible in the horizontal user position of the folding table and further that in the embodiment of a display system on the top of the table, the display is not upright Position of the table is recognizable. Also, the display is not recognizable in horizontal user position when the display is obscured by discarded items.

The WO 2013/055671 describes a folding table with a receptacle for a mobile display or mobile device. The disadvantage here is the strong limitation of the table as a shelf eg for a tray or for written documents, which then obstruct the view of the display. Also, the viewing angle on the display does not meet the ergonomic requirements. If the table is to be cleared for another use function, dismantle the display each time and place it somewhere.

The object of the invention is therefore to avoid the disadvantages described above and to provide a storage element available, which is particularly easy with respect to the application in the aircraft, in conjunction with a built-in passenger seat display space saving and high comfort allows the passenger.

The invention solves this problem with the features of the independent claims. Advantageous embodiments and further developments of the invention are specified in the dependent claims.

The inventive storage element is integrated in particular on the back of the backrest of a vehicle seat and is held by means of a holder which allows it to be movable between a substantially vertical, upright position and a horizontal or oblique position. The storage element is associated with a good view of the passenger a display, which is preferably also integrated in the back of the backrest of the vehicle seat. The storage element interacts with the display in such a way that it is transparent at least in a partial region and forms a display lens for the display in the substantially vertical, upright position with its transparent region. In the horizontal or oblique position, the storage element forms a table or a functional surface. The storage element has a first side and a second side, wherein both sides are spaced apart by the thickness of the storage element. The first and / or the second side may contain functional elements in respective preferred embodiments. For example, a transparent or non-transparent area on one or both sides can be designed as a touch screen. The first side is here in the substantially horizontal position of the storage element upwardly facing side, the second side is in this case in the upright position of the storage element from the display repellent and the passenger side facing. The two sides are each formed by a glass pane. A first glass pane forms the upwardly facing useful surface in horizontal or oblique position of the storage element and is positioned in an upright position of the storage element immediately in front of the display. The second glass sheet forms in the upright position of the storage element, the passenger facing surface. Both glass panes are connected by means of one or more organic layers, it being possible for functional elements to be integrated in the composite and / or as a coating of the glass panes.

The transparent region is inventively formed from a lightweight composite disk, which consists of the first and second glass sheet and the one or more organic layers and optionally, depending on the design, may contain functional elements. Here, the entire storage element consist of this lightweight composite disk and a frame member. But it can also be only a portion of the storage element made transparent and are formed by a lightweight composite disk. The remaining part of the storage element can then be designed in a conventional manner known to those skilled as storage of a folding table. The transparent area may in this case have the same or a different thickness to the remaining area of the storage element.

The inventive lightweight composite panel meets the mechanical safety requirements noted, for example, in RTCA / RTC Inc.'s RTCA Inc. (Radio Technical Commission for Aeronautics) document or in the Advisory Circular (AC) "Certification Guidance for Installation of Non -Essential, Non-Required Aircraft Cabin Systems & Equipments (CS & E) of the US Department of Transportation, Federal Aviation Administration (FAA), or Final Special Conditions 14 CFR Part 25 of U.S. Pat. Department of Transportation, Federal Aviation Administration (FAA).

As a critical size, the lightweight composite panel meets the requirements for the "Static Abuse Load Test" in accordance with the specifications and test conditions of RTCA / DO-313, Sec. 4.2 a "Glass in the Cabin, Static Abuse Load Test" with reference to the requirements of 14 CFR §§ 23/25/27 / 29.561 (Code of Federal Regulations) of FAA.

The requirements regarding the "Dynamic Ball Impact Test" in accordance with the specifications and test conditions of RTCA / DO-313, Sec. 4.2 b "Glass in the Cabin Dynamic Ball Impact Test" with reference to the requirements of 14 CFR §§ 23/25/27 / 29.561 of the FAA.

The inventive lightweight composite disk still meets the requirements of the thermal safety requirements, as they are valid in aviation. Thus, the Lightweight Composite Disc complies with the "Total Heat Release" requirement in accordance with the FAA's specifications and test conditions in accordance with the Aircraft Materials Fire Test Handbook, DOT / FAA / AR-00/12, Chapter 5 Heat Release Rate Test for Cabin Materials And has a total heat release, measured in accordance with JAR / FAR / CS 25, App. (Appendix) F, Part IV & AITM (Airbus Industries Test Method) 200060, of less than 65 kW × min./m ² , preferably of less than 50 kW × min / m ² , more preferably of less than 40 kW × min / m ² , particularly preferably of less than 20 kW × min / m ² . As a further measure of thermal safety requirements, the lightweight composite panel meets the requirement for the "Vertical Bunsen Burner Test" in accordance with the FAA's specifications and test conditions in accordance with the Aircraft Materials Fire Test Handbook, DOT / FAA / AR-00/12, Chapter 1 " Vertical Bunsen Burner Test for Cabin and Cargo Compartment Materials "and shows a post burn time after removal of the flame in the test, measured in accordance with the FAR / JAR / CS 25, App. F, Part I, of less than 15 seconds, preferably less than 8 seconds, more preferably less than 3 seconds, particularly preferably less than 1 second.

Meeting these requirements, the lightweight composite disk, which forms the transparent region of the inventive storage element, comprises at least a first and a second mineral glass pane and at least one organic layer A, wherein the at least one organic layer A is arranged between the glass panes. The basis weight of the lightweight composite composite pane is 0.5 kg / m ² to 23 kg / m ² , preferably 1 kg / m ² to 10.5 kg / m ² , particularly preferably 1.5 kg / m ² to 6.5 kg / m ² , more preferably 1.8 kg / m ² to 3 kg / m ² . In order to meet the safety requirements in addition to the weight per unit area, the ratio of the total thickness of the mineral glass panes to the total thickness of all organic layers is 1: 0.01 to 1:55, preferably 1: 0.01 to 1:25, particularly preferably 1: 0.01 to 1: 1, particularly preferably 1: 0.01 to 1: 0.5 and the total thickness of all organic layers is less than or equal to 10.1 mm, preferably less than or equal to 2.1 mm, more preferably less than or equal to 1 , 1 mm, more preferably less than or equal to 600 microns, most preferably less than 200 microns.

In order to ensure the suitability of the transparent region of the storage element in an inventive manner as a display lens, the optical properties, in particular the transparency of the lightweight composite disk are an essential feature. Transparency is understood to mean the property of a layer, a pane or a composite pane having a transmission or a light transmittance of greater than or equal to 80 percent in the visible wavelength range from 380 nm to 900 nm, in particular from 420 nm to 800 nm. In a particular embodiment, however, one of the two or both glass panes can be provided with a semi-mirroring. In this case, transparency is understood to be the property of a layer, a pane or a composite pane having a transmission greater than or equal to 40 percent in the visible wavelength range from 380 nm to 900 nm, in particular from 420 nm to 800 nm.

It has succeeded the inventors, in compliance with the o.a. Safety requirements and the specified low basis weights to provide a lightweight composite disc, which meets the requirements of the optical properties for a display lens. Thus, the light transmittance of the lightweight composite disk in respective embodiments is greater than 80%, preferably greater than 85%, particularly preferably greater than 88%, particularly preferably greater than 90%. The light transmittance of the lightweight composite disk can also be greater than 91%. In an inventive way, the mineral glass layer has a corresponding transparency and the transparency of the organic layers is in some cases even higher. Thus, in the particularly preferred embodiment, the organic layer has a pure transmission of greater than 99% as a transparent adhesive film in the embodiment of an optical clear adhesive (OCA). Pure transmittance (internal transmittance) is understood to mean the pure transport of light through the layer material without consideration of reflection losses.

In one embodiment, one or both sides of a glass pane, preferably a side facing out in the lightweight composite or both sides facing outwards, are coated with an optical interference layer as a highly reflective coating, so that a semi-mirroring is formed. Corresponding glass panes are offered by Schott AG, Mainz under the name MIRONA ^® . In an upright position of the storage element in the function as a display lens, the light weight composite disk in such an embodiment acts as a mirror when the display is off and dark. However, if the display is bright and shows signs or pictures, they can be clearly and clearly indicated by the Lightweight composite disk can be seen through. In one embodiment, in this case one side of the respective glass pane or the lightweight composite pane can be provided with a highly reflective coating and the other side with an anti-reflective coating. As a result, a disturbing double reflection can be almost completely avoided. The light transmittance of such lightweight composite disks is greater than 40%, preferably greater than 55%.

In addition, in a preferred embodiment of the lightweight composite disk with good optical properties but also excellent Schlierenfreiheit, low turbidity or low scattering behavior (haze), no distortion or neutral color rendering (according to color rendering index DIN EN 410 ). Again, the ratio of the total thickness of the one or more mineral glass panes to the total thickness of all organic layers is advantageous. Thus, the optical scattering behavior (haze) of the lightweight composite disk is less than or equal to 1.5%, preferably less than or equal to 1.0%, particularly preferably less than or equal to 0.5%, measured with a HazeGard, measurement after ASTM D1003 D1044 , The color rendering index of the lightweight composite disk DIN EN 410 is greater than or equal to 95.0, preferably greater than or equal to 98.0, particularly preferably greater than or equal to 99.0.

In a preferred embodiment, one or both surfaces of the lightweight composite disk, i. on its first and / or second side or both surfaces of the first and / or the second glass pane of the lightweight composite disk, which forms the transparent region of the inventive storage element, an antireflection coating. This can be any antireflection coating or antireflection coating known to the person skilled in the art. This offers the passenger comfort, especially if the storage element, or the transparent area of the storage element, serves as a display lens and protects against disturbing reflections.

In another embodiment, one or both surfaces of the lightweight composite disk, i. on its first and / or second side, an anti-fingerprint coating and / or an easy-to-clean coating. This can be any antifingerprint coating or easy-to-clean coating known to the person skilled in the art. Above all, such a coating is helpful when using the lightweight composite disk on its first and / or second side as a touch screen. But also for the cleaning of the transparent area of the storage element, such a coating is useful to save effort and costs.

In another embodiment, one or both surfaces of the lightweight composite disk, i. on its first and / or second side, an anti-scratch coating. This can be any antiscratch coating known to the person skilled in the art, especially in the form of a hardcoat. Such a hardcoating may be for example a coating with a silicon nitride (SiN), silicon-aluminum oxide-nitride (SiAlON), aluminum-silicon nitride (AlSiN), silicon-aluminum nitride (SiAlN) or a silicon oxide-nitride (SiON). Above all, such a coating is helpful when using the lightweight composite disk on its first and / or second side as a touchscreen or also generally to protect the surface of the lightweight composite disk from scratches that would reduce the optical properties of the disk.

In another embodiment, one or both surfaces of the lightweight composite disk, i. on its first and / or second side, an antimicrobial coating. This may be any antimicrobial coating known to those skilled in the art, especially in the form of a coating containing silver ions. Such a silver ion-containing layer may also be the outwardly facing surface region of the first or second glass plate which has been enriched by ion exchange with silver ions. Above all, such a coating is helpful when using the lightweight composite disk on its first and / or second side as a touch screen or also generally in order to be able to provide the passenger with a hygienically flawless filing or functional user interface.

In another embodiment, one or both surfaces of the lightweight composite disk, i. on its first and / or second side or even a respective subarea an anti-slip coating. This may be any anti-slip coating known to those skilled in the art, especially in the form of a special organic coating, such as e.g. an anti-slip film or a printed coating. This coating may also be provided on a non-transparent region of the storage element or only on a portion of the storage element. Above all, such a coating is helpful at a point where a drink should be turned off to avoid disturbing slippage during driving or flying movements.

The antireflective coating, antifingerprint coating, easy-to-clean coating, antiscratch coating, antimicrobial coating and / or anti-slip coating can each be applied alone on both or on one of the surfaces of the lightweight composite panel in a respective embodiment. As further specific embodiments, all technically possible combinations of the mentioned coatings can also be applied to both or one of the surfaces of the lightweight composite pane. For example, an anti-fingerprint or easy-to-clean coating may, for example, be applied to an antireflective coating such that the effect of the coating functions remains unchanged or complemented or matched. Such coating solutions are known to the person skilled in the art. In another specific embodiment, for example, an antireflective coating may also simultaneously improve the mechanical resistance of the glass surface through skillful choice of materials and the coating process.

The mineral glass panes, i. the first and / or second glass pane of the lightweight composite composite pane each have a thickness of less than or equal to 2 mm, preferably less than or equal to 1.2 mm, more preferably less than or equal to 0.55 mm, particularly preferably less than or equal to 0.35 mm and greater equal to 20 microns, preferably greater than or equal to 40 microns, more preferably greater than or equal to 70 microns, more preferably greater than 100 microns. Preference is given to thin glass panes with thicknesses of 0.2 mm, 0.21 mm, 0.3 mm, 0.4 mm, 0.55 mm, 0.7 mm, 0.9 mm, 1.0 mm, 1.1 mm , 1.2 mm or 2.0 mm.

For the mineral glass panes, i. the first and / or second glass sheet of the lightweight composite panel is preferably a glass biased for its use. This glass may be thermally and chemically tempered chemically by ion exchange or thermally or in combination. The first and / or second glass pane preferably consists of a lithium-aluminum silicate glass, soda lime silicate glass, borosilicate glass, alkali aluminosilicate glass, alkali-free or low-alkali aluminosilicate glass, for example by means of drawing processes, such as a downdraw drawing process, overflow fusion or by floatation. Technology is gained.

Advantageously, a low-iron or iron-free glass, in particular with a Fe ₂ O ₃ content of less than 0.05 wt.%, Preferably less than 0.03 wt.% Can be used, as this has reduced absorption and thus in particular allows increased transparency.

For other applications but also gray glasses or colored glasses are preferred. The first and / or second glass pane can also be an optical glass, such as, for example, a heavy flint glass, Lanthanschwerflint glass, flint glass, light flint glass, crown glass, borosilicate crown glass, barium crown glass, heavy glass or fluorocarbon glass.

Preference is given to using lithium aluminosilicate glasses of the following glass compositions as the first and / or second glass pane, consisting of (in% by weight) SiO ₂ 55-69 Al ₂ O ₃ 19-25 Li ₂ O 3-5 Total Na ₂ O + K ₂ O 0-3 Sum of MgO + CaO + SrO + BaO: 0-5 ZnO 0-4 TiO ₂ 0-5 ZrO ₂ 0-3 Total TiO ₂ + ZrO ₂ + SnO ₂ 2-6 P ₂ O ₅ 0-8 F 0-1 B ₂ O ₃ 0-2, and, if appropriate, additions of coloring oxides, such as, for example, Nd ₂ O ₃ , Fe ₂ O ₃ , CoO, NiO, V ₂ O ₅ , Nd ₂ O ₃ , MnO ₂ , TiO ₂ , CuO, CeO ₂ , Cr ₂ O ₃ , Rare earth oxides in contents of 0-1 wt .-%, as well as refining agents such as As ₂ O ₃ , Sb ₂ O ₃ , SnO ₂ , SO ₃ , Cl, F, CeO ₂ from 0-2 wt%.

Furthermore, soda lime silicate glasses of the following glass compositions are preferably used as the first and / or second glass pane, consisting of (in% by weight) SiO ₂ 40-80 Al ₂ O ₃ 0-6 B ₂ O ₃ 0-5 Total Li ₂ O + Na ₂ O + K ₂ O 5-30 Sum of MgO + CaO + SrO + BaO + ZnO: 5-30 Total TiO ₂ + ZrO ₂ 0-7 P ₂ O ₅ 0-2, and, if appropriate, additions of coloring oxides, such as, for example, Nd ₂ O ₃ , Fe ₂ O ₃ , CoO, NiO, V ₂ O ₅ , Nd ₂ O ₃ , MnO ₂ , TiO ₂ , CuO, CeO ₂ , Cr ₂ O ₃ , Rare earth oxides in contents of 0-5 wt.% Or for "black glass" of 0-15 wt.%, As well as refining agents such as As ₂ O ₃ , Sb ₂ O ₃ , SnO ₂ , SO ₃ , Cl , F, CeO ₂ from 0-2% by weight.

Borosilicate glasses of the following glass compositions are furthermore preferably used as the first and / or second glass pane, consisting of (in% by weight) SiO ₂ 60-85 Al ₂ O ₃ 1-10 B ₂ O ₃ 5-20 Total Li ₂ O + Na ₂ O + K ₂ O 2-16 Sum of MgO + CaO + SrO + BaO + ZnO: 0-15 Total TiO ₂ + ZrO ₂ 0-5 P ₂ O ₅ 0-2, and, if appropriate, additions of coloring oxides, such as, for example, Nd ₂ O ₃ , Fe ₂ O ₃ , CoO, NiO, V ₂ O ₅ , Nd ₂ O ₃ , MnO ₂ , TiO ₂ , CuO, CeO ₂ , Cr ₂ O ₃ , Rare earth oxides in contents of 0-5 wt.% Or for "black glass" of 0-15 wt.%, As well as refining agents such as As ₂ O ₃ , Sb ₂ O ₃ , SnO ₂ , SO ₃ , Cl , F, CeO ₂ from 0-2% by weight.

Alkali aluminosilicate glasses of the following glass compositions are furthermore preferably used as the first and / or second glass pane, consisting of (in% by weight) SiO ₂ 40-75 Al ₂ O ₃ 10-30 B ₂ O ₃ 0-20 Total Li ₂ O + Na ₂ O + K ₂ O 4-30 Sum of MgO + CaO + SrO + BaO + ZnO: 0-15 Total TiO ₂ + ZrO ₂ 0-15 P ₂ O ₅ 0-10, and, if appropriate, additions of coloring oxides, such as, for example, Nd ₂ O ₃ , Fe ₂ O ₃ , CoO, NiO, V ₂ O ₅ , Nd ₂ O ₃ , MnO ₂ , TiO ₂ , CuO, CeO ₂ , Cr ₂ O ₃ , Rare earth oxides in contents of 0-5 wt.% Or for "black glass" of 0-15 wt.%, As well as refining agents such as As ₂ O ₃ , Sb ₂ O ₃ , SnO ₂ , SO ₃ , Cl , F, CeO ₂ from 0-2% by weight.

Preference is furthermore given to using alkali-free aluminosilicate glasses of the following glass compositions as the first and / or second glass pane, consisting of (in% by weight) SiO ₂ 50-75 Al ₂ O ₃ 7-25 B ₂ O ₃ 0-20 Total Li ₂ O + Na ₂ O + K ₂ O 0-0.1 Sum of MgO + CaO + SrO + BaO + ZnO: 5-25 Total TiO ₂ + ZrO ₂ 0-10 P ₂ O ₅ 0-5, and, if appropriate, additions of coloring oxides, such as, for example, Nd ₂ O ₃ , Fe ₂ O ₃ , CoO, NiO, V ₂ O ₅ , Nd ₂ O ₃ , MnO ₂ , TiO ₂ , CuO, CeO ₂ , Cr ₂ O ₃ , Rare earth oxides in contents of 0-5 wt.% Or for "black glass" of 0-15 wt.%, As well as refining agents such as As ₂ O ₃ , Sb ₂ O ₃ , SnO ₂ , SO ₃ , Cl , F, CeO ₂ from 0-2% by weight.

Preference is furthermore given to using low-alkali aluminosilicate glasses of the following glass compositions as the first and / or second glass pane, consisting of (in% by weight) SiO ₂ 50-75 Al ₂ O ₃ 7-25 B ₂ O ₃ 0-20 Total Li ₂ O + Na ₂ O + K ₂ O 0-4 Sum of MgO + CaO + SrO + BaO + ZnO: 5-25 Total TiO ₂ + ZrO ₂ 0-10 P ₂ O ₅ 0-5, and, if appropriate, additions of coloring oxides, such as, for example, Nd ₂ O ₃ , Fe ₂ O ₃ , CoO, NiO, V ₂ O ₅ , Nd ₂ O ₃ , MnO ₂ , TiO ₂ , CuO, CeO ₂ , Cr ₂ O ₃ , Rare earth oxides in contents of 0-5 wt.% Or for "black glass" of 0-15 wt.%, As well as refining agents such as As ₂ O ₃ , Sb ₂ O ₃ , SnO ₂ , SO ₃ , Cl , F, CeO ₂ from 0-2% by weight.

For example, thin glasses such as those sold by Schott AG, Mainz under the names D263, B270, Borofloat, Xensation Cover, Xensation cover 3D, AF45, AF37 or AF32 are particularly preferred.

To improve especially the breaking strength and the scratch resistance of the mineral glass pane, it is thermally and / or chemically prestressed in a preferred embodiment of the invention. Thermal and chemical tempering processes are known. In thermal tempering processes, the entire glass article is heated, and then the glass surface quenched rapidly by blowing cold air. As a result, the surface solidifies immediately, while the glass interior continues to contract. This results in a tension inside and correspondingly on the surface a compressive stress. However, thermal tempering processes are generally less suitable for thin glasses having a thickness of less than 1 mm or 0.5 mm.

In one embodiment of the invention, the first and / or second glass pane is advantageously thermally pre-stressed prior to chemical tempering.

The invention particularly preferably relates to an embodiment of the first and / or second glass pane as a chemically tempered substrate. Chemical tempering can be carried out in one or more stages. In particular, alkali or lithium-containing glasses are used in which sodium ions are exchanged for potassium ions or lithium ions for sodium ions. By exchanging smaller ions for larger ions, a compressive stress is generated in the surface of the glass sheet in this way. The ion exchange takes place, for example, in a corresponding salt bath, such as KNO ₃ or NaNO ₃ or AgNO ₃ or any mixture of the salts or in a multistage process using KNO ₃ and / or NaNO ₃ and / or AgNO ₃ . The tempering temperatures are in the range of 350 ° C to 490 ° C with an annealing time of 1 to 16 hours. The ion exchange in an AgNO ₃ salt bath takes place in particular in order to design the surface antibacterial by incorporation of silver ions.

In the embodiment of the invention with a single-stage tempered glass pane, the compressive stress at the surface is at least 600 MPa, preferably at least 800 MPa at a penetration depth of the exchanged ions of greater than or equal to 30 microns, preferably greater than or equal to 40 microns.

In the embodiment of the invention with a multi-stage chemically tempered glass, the compressive stress at the surface may be lower, but in the multi-stage biasing the penetration depth of the exchanged ions is increased, so that the strength of the tempered glass as a whole can be higher. In particular, the compressive stress on the surface of the glass pane is at least 500 MPa at a penetration depth of more preferably greater than or equal to 50 μm and particularly preferably greater than or equal to 80 μm. With multi-stage tempering, the penetration depth can also be over 100 μm.

The ion exchange depth of a chemical hardening for a first and / or second glass pane in a light weight composite pane is greater than or equal to 30 μm, preferably greater than or equal to 40 μm, particularly preferably greater than or equal to 50 μm, particularly preferably greater than or equal to 80 μm, and the surface compressive stress of a glass pane in a lightweight composite pane greater than or equal to 500 MPa, preferably greater than or equal to 600 MPa, preferably greater than or equal to 700 MPa, particularly preferably greater than or equal to 800 MPa, particularly preferably greater than or equal to 900 MPa.

The penetration depth of the exchanged ions and thus the surface zones of a higher compressive stress in a glass pane increase the strength of the glass pane. However, it is to be adjusted in each case to the total thickness of the glass, because if the tensile stress generated in the interior of the glass sheet during chemical curing is too high, the glass would break. When the glass sheet is subjected to flexing due to an external force, the disk is more sensitive due to its internal tension. The internal tensile stress in the glass sheet is therefore less than or equal to 50 MPa, preferably less than or equal to 30 MPa, more preferably less than or equal to 20 MPa, particularly preferably less than or equal to 15 MPa. The surface compressive stress of the glass sheet is greater than or equal to 500 MPa, preferably greater than or equal to 600 MPa, preferably greater than or equal to 700 MPa, more preferably greater than or equal to 800 MPa, particularly preferably greater than or equal to 900 MPa.

The 4-point bending tensile strength after DIN EN 843-1 respectively. DIN EN 1288-3 a first and / or second glass pane in a lightweight composite pane, is greater than or equal to 550 MPa, preferably greater than or equal to 650 MPa, more preferably greater than or equal to 800 MPa.

The Young's modulus or modulus of elasticity of a first and / or second glass pane in a light weight composite pane is greater than or equal to 68 GPa, preferably greater than or equal to 73 GPa, particularly preferably greater than or equal to 74 GPa, particularly preferably greater than or equal to 80 GPa.

The shear modulus of a first and / or second glass pane in a light weight composite pane is greater than or equal to 25 GPa, preferably greater than or equal to 29 GPa, particularly preferably greater than or equal to 30 GPa, particularly preferably greater than or equal to 33 GPa.

Above all, a tempered glass sheet has a high surface hardness and offers a high resistance to scratching and scratching by external force. This is important to ensure the function as a display lens with a high transparency. The Vickers hardness of a non-tempered glass or glass sheet in a non-prestressed state DIN EN 843-4 respectively. EN ISO 6507-1 is greater than or equal to 500 HV 0.2 / 20 kgf / mm ² (kilogram force per square meter), preferably greater than or equal to 560 HV 0.2 / 20 kgf / mm ² , more preferably greater than or equal to 610 HV 0.2 / 20 kgf / mm ² . The Vickers hardness of a prestressed glass pane or of the glass pane in a non-prestressed state is greater than or equal to 550 HV 0.2 / 20 kgf / mm ² (kilogram force per square meter), preferably greater than or equal to 600 HV 0.2 / 20 kgf / mm ² , more preferably greater than or equal to 650 HV 0.2 / 20 kgf / mm ² , particularly preferably greater than or equal to 680 HV 0.2 / 20 kgf / mm ² at a test force of 2 N (corresponding to a mass of 200 g).

The lightweight composite disk according to the invention should ensure a high splinter protection in case of breakage, i. no splinters should be released to the environment. Therefore, the first and second mineral glass pane is combined with at least one organic layer in compliance with the safety requirements, wherein the at least one organic layer is arranged between the first and the second glass pane. For better understanding, this is at least one organic layer with "an organic layer A" are referred to. This layer is designed primarily as an adhesive layer, which holds together in the event of a break, the fractions of one or both glass panes or holds and which also increases the elasticity and reliability of the lightweight composite pane.

In order to avoid unwanted bending or bulging of the lightweight composite pane, the thermal expansion coefficients of the two glass panes are matched. The difference in the thermal expansion coefficient of the one glass pane and the second glass pane is less than or equal to 7 × 10 ^-6 K ^-1 , preferably less than or equal to 5 × 10 ^-6 K ^-1 , preferably less than or equal to 3 × 10 ^-6 K ^-1 , preferably less is equal to 2.5 × 10 ^-6 K ^-1 , more preferably less than or equal to 2 × 10 ^-6 K ^-1 , particularly preferably less than or equal to 1 × 10 ^-6 K ^-1 .

In a further embodiment, the lightweight composite pane comprises a second organic layer B and a third organic layer C, wherein the second organic layer B is a polymer insert which is arranged between the first organic layer A and the third organic layer C. The three organic layers A, B and C are disposed between the first and second glass sheets. The organic layers A and C are each designed primarily as an adhesive layer, which permanently connect and glue together the elements or materials of the lightweight composite composite and in the event of breakage of a glass sheet or both glass panes, the fractions hold together or hold. Thus, they act as splinter protection. Furthermore, the elasticity and reliability of the lightweight composite disk is increased by them. However, in order to further improve the splinter protection, the elasticity and reliability of the lightweight composite disk, a further organic layer B in the form of a polymer insert is arranged between the organic layer A and C.

The thickness of the organic layer B, i. the polymer insert is less than or equal to 10 mm, preferably less than or equal to 2 mm, more preferably less than or equal to 1 mm, particularly preferably less than or equal to 0.3 mm, most preferably less than or equal to 0.1 mm. In selecting the thickness of the polymer insert, the ratio of the total thickness of the one or more mineral glass panes to the total thickness of all organic layers on which the invention is based is maintained, for example the ratio of the thickness of the two panes to the sum of the thickness of the organic layers A, B and C.

The organic layer B, i. Polymer insert preferably consists of a polyethylene terephthalate (PET), polycarbonate (PC), polymethyl methacrylate (PMMA), polyamide (PA), polyimide (PI) or a polyolefin such as polyethylene (PE) or polypropylene (PP). Furthermore, it may preferably be made from one of its blends, copolymers or derivatives or from a fluorinated and / or chlorinated polymer such as ethylene-tetrafluoroethylene (ETFE), polytetrafluoroethylene (PTFE), polyvinyl chloride (PVC), polyvinylidene chloride (PVdC) or polyvinylidene fluoride (PVDF). ,

The thickness of an organic layer A is less than or equal to 350 .mu.m, preferably less than or equal to 200 .mu.m, preferably less than or equal to 100 .mu.m, more preferably less than or equal to 60 .mu.m, particularly preferably less than 30 .mu.m. The thickness of the organic layer C is less than or equal to 200 μm, preferably less than or equal to 100 μm, particularly preferably less than or equal to 60 μm, particularly preferably less than 30 μm. In selecting the thickness of an organic layer A and / or the third organic layer C, the ratio of the total thickness of the one or more mineral glass panes to the total thickness of all organic layers on which the invention is based is maintained.

The pure transmission of an organic layer A is greater than or equal to 88%, preferably greater than or equal to 92%, particularly preferably greater than or equal to 96%, particularly preferably greater than or equal to 99%. The pure transmission of an organic layer C is also greater than or equal to 88%, preferably greater than or equal to 92%, particularly preferably greater than or equal to 96%, particularly preferably greater than or equal to 99%.

The organic layer A or the organic layer C or both organic layers may consist of a hot melt adhesive, in the sense of an encapsulation or embedding, in particular of a polyvinyl butyral (PVB) or a thermoplastic urethane-based elastomer (TPE-U) or an ionomer or a Polyolefin, such as an ethylene vinyl acetate (EVA), or a polyethylene or a polyethylene acrylate or a thermoplastic silicone. In a particularly preferred embodiment, the organic layer A or the organic layer C or both organic layers of an organic low molecular weight compound, an adhesive film, which is characterized by high optical transparency, permanent adhesiveness to glass and sufficient elasticity for glass for stress compensation and splinter protection , This can be, for example, an adhesive tape. The intermediate layer can consist of an acrylate-based pressure-sensitive adhesive, in particular of an optical clear adhesive (OCA), as described, for example, by 3M (Minnesota Mining and Manufacturing) / St. Paul / Minnesota, USA under 3M ^™ Optically Clear Adhesive or by US Pat Fa. tesa SE / D-Hamburg such as tesa is 69301-69305 or 69401-69405 tesa available for example under tesa ^® OCA tesa 69xxx.

In order to ensure the good optical properties of the lightweight composite panel, especially as a display lens, in a preferred embodiment, the refractive indices of all elements or materials of a lightweight composite panel in a corresponding embodiment are matched to one another. The difference in the refractive index of the materials arranged in each case in a lightweight composite composite disk is less than or equal to 0.3, preferably less than or equal to 0.25, preferably less than or equal to 0.2, more preferably less than or equal to 0.15, particularly preferably less than or equal to 0.09 , For example, typical refractive indices for the first and / or second glass sheets are 1.50 to 1.53 (at 588 or 633 nm) for an aluminosilicate glass or in its compressive stress layer after chemical toughening 1.51 to 1.54 (at 588 or 633 nm) or for a borosilicate glass 1.523 (at 588 nm) or for an alkali-free aluminosilicate glass 1.510 (at 588 nm) or for a Sodium soda lime 1.52 (at 588 nm). The refractive index of the organic layer A or the organic layer C as OCA is 1.47. The refractive index of the organic layer B, for example as a PET, is an approximate value of 1.56 to 1.64, for example as a PC is a guideline of 1.58, for example, as PMMA is a guideline of 1.49, for example, as PE is a guideline of 1.50 to 1.54, for example, as PP is a guideline of 1.49 to 1.6, for example, as PA is a guideline 1.53, for example, as PI is a guideline 1.66 to 1.78.

For the determination of the thickness of the individual layers taking into account the basis weight in a lightweight disk according to the invention while maintaining the ratio of the total thickness of the one or more mineral glass panes to the total thickness of all organic layers, the following indicative values are given by way of example: For a aluminosilicate glass, a density of 2.39 to 2.48 g / cm ³ , for a borosilicate glass a density of 2.51 g / cm ³ , for a alkali-free aluminosilicate glass a density of 2.43 g / cm ³ , for a soda-lime glass a density of 2.5 g / cm ³ , for an organic layer A or an organic layer C as OCA a density of 1.05 g / cm ³ , for an organic layer B, for example as PET, a density of 1.3 to 1.4 g / cm ³ , for example as PC a density of 1.2 g / cm ³ , for example as PMMA a density of 1.19 g / cm ³ , for example as PE a density of 0.92 to 0.95 g / cm ³ , for example as PP a density of 0.9 g / c m ³ , for example as PA has a density of 1.13 g / cm ³ , for example as PI a density of 1.42 g / cm ³ , for example as TPU has a density of 1.15 g / cm ³

The lightweight composite pane as a transparent region of an inventive storage element or as a storage element also meets the requirements of thermal safety requirements. This is especially true for a lightweight composite disk with a basis weight of less than 5.5 kg / m ² and a ratio of the total thickness of the mineral glass panes to the total thickness of all organic layers of less than 1: 1 and a total thickness of all organic layers less than or equal to 350 microns. As the most critical size, such lightweight composite disks meet the "total heat release" requirement in accordance with the FAA specifications and test conditions set forth in the Aircraft Materials Fire Test Handbook, DOT / FAA / AR-00/12, Chapter 5 Heat Release Rate Test for Cabin Materials "and have a" Total Heat Release ", measured in accordance with JAR / FAR / CS 25, App. (Appendix) F, Part IV & AITM (Airbus Industries Test Method) 2,0006, of less than 65 kW × min. / m ^2, preferably of less than 50 kW × minute and meter ^2, more preferably of less than 40 kW × minute and meter ^2, particularly preferably of less than 20 kW × minute and meter ^2. As a further measure of thermal safety requirements, such lightweight composite disks meet the requirement for the "Vertical Bunsen Burner Test" in accordance with the FAA specifications and test conditions set forth in the Aircraft Materials Fire Test Handbook, DOT / FAA / AR-00/12, Chapter 1 " Vertical Bunsen Burner Test for Cabin and Cargo Compartment Materials "and show a post burn time after removal of the flame in the test, measured in accordance with the FAR / JAR / CS 25, App. F, Part I, of less than 15 seconds, preferably less than 8 seconds, more preferably less than 3 seconds, particularly preferably less than 1 second.

In order to comply with the thermal safety requirements, in particular with respect to the "total heat release" and the afterburning time in the "Vertical Bunsen Burner Test" or "Bunsen Burner Test", the absolute amount of heat that the organic component releases in the lightweight composite pane is, on the one hand, released the flammable is crucial, which is why the total thickness of the organic layers is limited in an inventive manner for given basis weights. But it is not only the absolute amount of heat-releasing or combustible organic crucial, but within the specified basis weights and the ratio between non-combustible mineral glass and the total amount of organic in such a lightweight composite disc is crucial to meet the thermal safety requirements , It is important here how much heat capacity is provided by the glass in a lightweight composite disk.

As a preferred manufacturing method for the production of a lightweight composite composite pane according to the invention, a method in the manner of a roll lamination process is used. The manufacturing process is carried out either as a sheet to sheet or as a roll to sheet process under clean room conditions.

In the case of a sheet-to-sheet process, in a first step, a glass pane, which is the basic carrier substrate for the lightweight composite pane, is provided. This takes place in the form of a disk as a bearing measure or final dimension. This glass pane is placed with its first surface, which then forms an outer surface in the light weight composite disk, on a solid base, which carries the disk and introduced into the process section. The backing may be designed with another traveling backing, such as polytetrafluoroethylene (PTFE) paper or foil, to protect the glass sheet and facilitate subsequent process steps. In a second step, an organic layer A is provided, which is usually removed from a roll. This is preferably an adhesive adhesive film, in particular, for example, an OCA, with which the glass pane is stuck in a third step. For this purpose, first, if present, a protective film on a first surface of the adhesive film, which is applied to the glass surface, withdrawn. Such a protective film may be, for example, a PET film having a thickness of 50 μm. This is done continuously with the supply of the roll with the gluing process. This first surface of the adhesive film is rolled flat over the exposed upper side of the glass sheet by means of a roller. Preferably, the roller for pressing the organic layer A is gummed to prevent pressure peaks when pressed on the laminate. Furthermore, the roller is tempered when pressed. Here is a temperature of greater than 45 ° C, preferably greater than or equal to 50 ° C appropriate to avoid largely to complete streaking in the laminate. The pressing out of the air from the joint gap is supported by a temperature control, since the organic layer is softer.

Preferably, the organic layer A is rolled up over the glass pane. In order to avoid concomitant disturbances of the further process by adhering the adhesive film projecting beyond the glass pane to the transport system or other contact points, the laminate is transported on running paper or a corresponding base during the entire production process.

In a fourth process step, a protective film is removed from the second, now exposed surface of the organic layer A. For example, such a protective film may also be a PET film having a thickness of 50 or 125 μm, with the adhesion of the protective film on the second surface of the organic layer A being preferably higher than on its first surface.

In a subsequent fifth step, the second glass pane is provided and applied to the exposed second surface of the organic layer A. This takes place as a bearing measure or final dimension in the form of a disk or as a roll of thin glass or polymer tape wound on a roll. The thin glass sheet is fed from above via an inclined plane and brought into contact with the surface of the organic layer A. First, the second glass pane is positioned over a stop system. If a line contact has been produced conclusively along the front edge of the first glass pane, the stop system opens and releases the further transport path. The thin glass is rolled onto the surface of the first glass pane coated with the organic layer A. When the second glass sheet is applied, there is a closing angle from the inclined feed plane to the surface of the adhesive film which is defined by a deflection of the second glass sheet prior to application. For rolling the second glass sheet, the roll is preferably rubberized for pressing and also tempered. Here is also a temperature of greater than 45 ° C, preferably greater than or equal to 50 ° C appropriate. In order to allow the processing of different glass thicknesses, this roller is preferably spring-mounted. When using a glass roll to provide the second glass sheet, the respective tape is cut to length after covering the desired area. For this, conventional methods such as cutting with a glass cutter, knife or laser scribing are used.

In a further embodiment, instead of the organic layer A, a composite of a first organic layer A, a second organic layer B and a third organic layer C or a composite with still further additional organic layers is rolled onto the first glass pane. The composite of the three organic layers or a composite with further organic layers is hereby applied in layers to the first glass plate. In a preferred embodiment of the method, the composite is prefabricated separately and rolled as a prefabricated composite according to alternative to the organic layer A on the first glass sheet.

Above all, if for one of the organic layers, in particular for the organic layer A, a hot melt adhesive in the sense of an encapsulation or embedding material is used, but also to increase the quality of the lightweight composite disk in all other embodiments, in a further preferred embodiment of the Applying and pressing the second glass sheet in a further step, the aftertreatment of the laminate of the lightweight composite pane. In this further process step, which can be carried out separately from the preceding process steps, the process is conducted so that the organic layer melts and / or crosslinks and cures. For this purpose, the aftertreatment by means of temperature, preferably in the range 120 ° C to 160 ° C, carried out within a time up to 6 hours and optionally with the aid of vacuum and / or pressure, preferably at 5 to 15 kg / cm ² . This post-treatment step is preferably carried out with the aid of an autoclave.

In a further step, the organic layer A is cut flush with the edges of the glass sheet, or it will be cut from the laminate lightweight composite disks in the final dimension.

In one embodiment, in the substantially vertical, upright position of the storage element according to the invention facing away from the display and the passenger facing side of the storage element, i. its second page, functional elements for operating and controlling the display on the display. In this case, the transparent region of the storage element can be designed accordingly as a touch screen, touch screen or as a control surface with touch functions, which can be operated from the second side of the storage element. Touchscreens may be implemented in technologies known to those skilled in the art, e.g. with resistive, capacitive, inductive, sound wave-controlled or optical scanning. The representation of functional elements for operation can also be projected onto the surface of the storage element.

In addition to the transparent region of the storage element, alternatively or additionally, a non-transparent region of the second side of the storage element can also be provided with operating or functional elements. For example, functional elements with tactile feedback can also be provided, preferably in the vicinity of the edges of the storage element. Here, the operating hands or fingers travel over punctiform or linear functional elements, wherein the position of the finger or its speed or its acceleration is measured parallel to the covering surface. Possible embodiments may be realized by tactile elements such as raised or recessed dot sequences (comparable to haptic functional elements for the blind, e.g., the Braille font) or by linear guide elements such as raised or recessed line structures. Another tactile feedback can be mediated by acoustic waves. In addition, a "click" function by a finger movement perpendicular to the surface of the storage element take over switching tasks.

In a further embodiment, in the horizontal or oblique position of the storage element according to the invention upwardly facing side of the storage element, i. its first page, functional elements for operating and controlling the display in the display. In this case, the transparent region of the storage element can accordingly be designed as a touchscreen, touchpad or as a control surface with touch functions, which can be operated from the first side of the storage element. Under a touch screen ("touch screen") is usually understood a display and input device, the display cursor of the display is replaced by the touching finger or a stylus. The click function is done by briefly tapping the surface; with several fingers, other functions can be realized by gestures, such as rotate, zoom in or out of the screen, or turn to the next page. A touchpad or touchpad is understood to be a touch-sensitive area which serves, for example, as a mouse or key replacement for inputting commands. Alternatively or simultaneously, a non-transparent region of the first side of the storage element can be provided with operating or functional elements. Such embodiments are known in the art.

In a further embodiment, the side of the storage element facing upwards in the horizontal or oblique position of the storage element according to the invention is, i. its first page, assigned to a projector, by means of which, in particular on the transparent area of the first page, a display of functional or operating elements for operation and control of the display is projected in the display. Furthermore, this projection area of the first page contains sensors which receive the input or control commands. Such sensors are integrated in the lightweight composite pane and / or in a non-transparent region of the storage element which serves as a projection surface.

Alternatively, one or more external sensors, which receive the input or control commands, are assigned to this projection area of the first page. For example, they work on the evaluation of a picture or motion recording.

Such embodiments have the advantage that the storage surface can be made simple and inexpensive and contains no sensitive elements. As a projection surface of the projection area has a corresponding optically suitable surface.

As a supplement or as a sole embodiment, user interfaces can be used without direct contact with the display. For example, by one or more cameras in or near the display, the viewing direction of one or both eyes of the passenger is detected. Through a mathematical Transformation can be derived from the fixed point on the display. A click function can be achieved, for example, by blinking the eyelids.

Further non-contact user interfaces known to the person skilled in the art, which form an embodiment, are based on the 3D measurement and the evaluation of the movement of hands or fingers. These include so-called time-of-flight cameras, with the help of which the x, y, z position is measured with a high temporal sampling rate. The camera field is illuminated by means of a light pulse. From its runtime to the detected object back and forth, the distance is calculated. In this way, the 3D position and its temporal change can be measured. The detectable distance range is between decimetres up to a few meters, whereby the distance resolution is limited to approx. 1 cm, the lateral resolution by the number of pixels of the camera (approx. 150 x 150 pixels). For the short distances, the time resolution limits the achievable smallest distances (1 ns corresponds to 0.3 m). Commercially available systems (e.g., Panasonic D imagers, Microsoft Kinect) can evaluate a maximum of about 150 frames per second. Because of the relatively small distance between the backrests within two rows of seats, the achievable z-resolution is limited. In an alternative embodiment, light field cameras (plenoptic cameras) or an array of many fixed focus cameras (e.g., 16 micro-cameras) may be used. From the parallax of the individual images, the z-position can be determined with high accuracy (see Pelican Imaging).

In a further preferred embodiment, the first and / or second glass pane of the lightweight composite pane, which forms the transparent part of the storage element according to the invention or the storage element, formed as a switchable glass, by means of which the transparent region is variable in transparency. Such switchable elements are manufactured, for example, by means of switchable liquid crystals and switch a transparent transparent glass alternately into an opaque, opaque glass. In one embodiment, the first and / or second glass pane of the lightweight composite pane is designed as a switchable glass directly, in an alternative embodiment, the first and / or second glass pane is connected to a switchable film. The foil can be applied on the outside or inside of a glass pane. For reasons of scratch resistance, a lamination between the glass sheets is preferred. Such a switchable film is a smart plastic film that conducts electronic pulses. It consists of a liquid crystal film which is electro-coated on both sides and laminated between two polyester films. The switching of the switchable glass or the switchable film applied to the glass can be provided for example by means of touch and / or voice or other sensor technology. Corresponding switching elements can be integrated in the storage element. With the switchable glass, the passenger can quickly and easily switch the view of the display display off when the position of the storage element is upright without having to intervene in the electronics of the display.

In a further preferred embodiment, the first and / or second glass pane of the lightweight composite pane, which forms the transparent part of the storage element according to the invention or the storage element, is formed with an interactive surface. In one embodiment, the first and / or second glass pane or a glass pane composite is executed directly as first and / or second glass pane of the lightweight composite pane as an interactive surface, in an alternative preferred embodiment, the first and / or second glass pane with an interactive surface in the form of a film connected. The foil can be applied on the outside or inside of a glass pane. For reasons of scratch resistance, a lamination between the glass sheets is preferred. Such an interactive surface film is embodied, for example, in a multi-control ITO (conductive dispersed metal oxide) / PDLC (polymer dispersed liquid crystal) technology. With such an interactive surface, the first and / or second glass pane of the transparent region of the storage element can be used, for example, as a touch kiosk, interactive projection or interactive table. Here, for example, hints, advertising, offers or information on safety and passenger service can be provided. In combination with the switchable glass or the switchable film, its transparent area can also be used as the second display in the upright position of the storage element.

In a further embodiment, in particular the second glass pane of the lightweight composite pane, which forms the transparent part of the storage element according to the invention or the storage element, is half-mirrored, at least in a partial area. This allows the use of at least a portion of the storage element in its upright position as a mirror, which increases the comfort for a passenger. If the display behind it is bright, it can be seen unhindered by the half-mirrored area. Such glass sheets with a two-sided or one-sided coating offers, as stated above, the Schott AG, Mainz under the trade name Mirona ^® on.

In a further embodiment, the first and / or second glass pane of the lightweight composite pane, which forms the transparent part of the depositing element according to the invention or the depositing element, is deformed three-dimensionally and / or has at least one depression in at least one partial area. In principle, the storage element and / or the light weight composite disk integrated therein can have any shape and be ergonomically or space-savingly also three-dimensionally deformed. It may also be a partially or completely circumferential groove formed, for example, to prevent an accidentally spilled drink from flowing down. It may also be a recess for receiving a beverage container, such as a glass or a cup formed, which protects the container against slipping on the storage element. This depression can then also be equipped with a heating element.

In a further preferred embodiment, the storage element comprises in the region of its transparent region on its first and / or second side a movable, removable or in particular displaceable cover, by means of which the transparent region on the first and / or the second side can be covered. Such a cover may be transparent or non-transparent and serves primarily to protect against mechanical stress. As a result, the glass surface of the lightweight composite pane, which is designed in one embodiment with functional elements, as a touch screen, Touchpat or interactive surface, for use, for example, as a table, be covered protectively.

In a further embodiment, the first and / or second glass pane of the lightweight composite pane, which forms the transparent part of the storage element according to the invention or the storage element, has a transparent privacy cover as a privacy filter. Such a privacy filter may be detachably or slidably disposed or fixedly secured. This protects the privacy of the passenger or passenger and increases comfort by preventing them from looking into the display or interacting with the surface from the side.

It is often the wish of passengers or passengers to use and operate their own mobile device during the journey. Thus, in one embodiment, the storage element on an interface for the integration of such a mobile device. The storage element can in this case be used as a table for operating the mobile device and the associated display can be used to display the information or to display images, movies and presentation of entertainment. Also, the shelf can be placed in the upright position for better legroom, and the display behind it can be used to display information or display pictures, movies and entertainment.

The invention also encompasses the use of a storage element in a described embodiment or in several described embodiments in any combination with an at least partially transparent region in a horizontal or oblique position as a table or functional surface, and in a substantially vertical, upright position as a display lens for a display associated with the display element, wherein the table or the functional surface is supported by a holder and by means of the holder between a substantially upright position and a horizontal or oblique position is movable.

Such a storage element can be used in a particularly preferred embodiment as a seat-integrated folding table and seat-integrated display lens for a vehicle seat, in particular for an aircraft, train, bus or ship, in particular ferry.

The invention also includes the use of a lightweight composite disk in a described embodiment or in several described embodiments in any combination for an inventive storage element in a described embodiment or in a plurality of described embodiments in any combination.

In the particularly preferred embodiment with a low basis weight, a high scratch resistance, surface hardness, surface quality, good chemical resistance to cleaning agents and very good fire protection properties and still with high optical transparency and very good optical properties such as streak-free and very low haze, as each above standing are described, such a lightweight composite composite is suitable as a storage element or as a transparent region of a storage element with simultaneous function as a display lens in an upright position of the storage element. With these properties it finds particular use in the field of aviation, where particularly stringent requirements are imposed. Meeting these requirements, as set forth in regulatory guidelines and regulations such as the FAA, RTCA, EASA, or aircraft manufacturer specifications, is used as an equipment item for an aircraft.

The invention also includes a vehicle seat comprising a seat frame, a seat cushion coupled to the seat frame, a seat back coupled to the seat frame. With the backrest is on the one hand a fixed or removable integrated display system or display and on the other hand, an inventive storage element, connected in a described embodiment or in several described embodiments in any combination.

The invention is intended by the following 1 to 5 and Examples 3 through 10 which describe lightweight composite disks in various exemplary embodiments.

1 : Lightweight composite panel with 3 layers of glass-glass construction

2 : Lightweight composite panel with 5 layers of glass-glass construction

3 : Vehicle seat with storage element in upright position as display lens

4 : Vehicle seat with storage element in horizontal position as a table

5 : Vehicle seat with storage element in an inclined position as operating surface

The following examples show that only in compliance with the specific limits of the total thickness of all organic layers and the ratio of the total thickness of the one or more mineral glass panes to the total thickness of all organic layers, a lightweight disk as well as compliance with the specified basis weights sufficient security for a lightweight composite pane is feasible ,

1 shows in a first example the construction of a 3-layer light weight composite disk 1 , The base support substrate forms a first glass pane 11 from a chemically toughened aluminosilicate glass, as offered by the company Schott AG / Mainz under the name Xensation ^® Cover, with a thickness of 0.55 mm and density of 2.48 g / cm ³ , as organic layer A 31 was an OCA as the company tesa SE / D-Hamburg under the name tesa OCA tesa ^® 69402 offers, used with a thickness of 50 microns and density of 1.05 g / cm ³ and the second glass 21 was a thin glass sheet of a not prestressed borosilicate glass, as offered by Schott AG / Mainz under the name D 263 ^® T, with a thickness of 0.21 mm and density of 2.51 g / cm ³ . The result was a basis weight of 1.99 kg / m ² and thus a weight saving of 18% compared to a standard window pane made of pure PC or PMMA in an aircraft interior with 2.4 kg / m ² as a comparison value. The ratio of the thickness of the two glass sheets to the thickness of the organic layer was 1: 0.066.

This lightweight composite disc 1 passed the Bunsen Burner test, which in accordance with the provisions and rules of FAR / JAR / CS 25, App. F, Part I & AITM 2,0002A. The sample edge was exposed to the burner flame for 60 seconds each. The flame time (flame time) after removal of the flame was 0 sec for all samples (less than 15 seconds are required). The drip flame time for all samples was 0 sec (less than 3 sec required), no dripping of material was observed in the tests. The Burn Length on average of 3 samples was 83 mm (required is less than 152 mm). The combustion length is defined by the distance of the original sample edge to the farthest point of destruction due to combustion, partial destruction or embrittlement of this site.

This lightweight composite disc 1 also passed the heat release test. This test was conducted in accordance with the provisions and regulations of FAR / JAR / CS 25, App. F, Part IV & AITM 2,0006. 2 shows a typical course of the heat release rate for a sample from a lightweight composite disk 1 after this example. The test is a calorimetric measurement that measures the heat release of a material in the event of a fire over a period of 5 min. The heat release rate is a value for the amount of energy released by the sample material in the event of a fire over time. It is highest when the material burns the most, which becomes clear at the peak of the curve. The average value of 3 samples must not exceed 65 kW / m ² over a period of 5 minutes. The integral over the first 2nd min. Indicates the value of the total heat release, which must not exceed 65 kW × min./m ² on average of 3 samples. The heat release is a measure of the amount of energy released by the sample material in the event of a fire. The lightweight composite disk 1 had a heat release rate of 17.53 kW / m ² and a total heat release of 13.54 kW × min / m ² . Thus, a sufficient thermal Safety for a lightweight composite disk as part of the inventive storage element or for use as part of the inventive storage element, especially given in relation to the Nachbrennverhalten after the Bunsen Burner test and the Total Heat Release after the test of the Heat Release.

2 shows a second example of the construction of a 5-layer light weight composite disk 2 , The base support substrate forms a first glass pane 12 from a thin glass foil made of an unbiased borosilicate glass, as offered by Schott AG / Mainz under the name D ^263® T, with a thickness of 0.21 mm and a density of 2.51 g / cm ³ . Alternatively, a chemically tempered borosilicate or even, for example, an aluminosilicate glass can be used. As organic layer A 32 was an OCA, as the company tesa SE / D-Hamburg under the name tesa ^® OCA tesa 69402 offers, used with a thickness of 50 microns and density of 1.05 g / cm ³ . As the organic layer B 41, a PET liner having a thickness of 12 μm and a density of 1.2 g / cm ^{3 was} used. As the organic layer 51 was a C OCA, as offered by the company. Tesa SE / D-Hamburg under the name ^® tesa OCA tesa 69402, with a thickness of 50 microns and density of 1.05 g / cm ^3. As the second glass pane 22 was a thin glass sheet of an unbiased borosilicate glass, as the company Schott AG / Mainz under the name D 263 ^® T offers, used with a thickness of 0.21 mm and density of 2.51 g / cm ³ . Alternatively, a chemically tempered borosilicate or even, for example, an aluminosilicate glass can also be used here. The result was a basis weight of 1.17 kg / m ² and thus a weight saving of 51% compared to a standard window pane made of pure PC or PMMA in an aircraft interior with 2.4 kg / m ² as a comparison value. The ratio of the thickness of the two glass sheets to the total thickness of the organic layers of 112 μm was 1: 0.267.

The following examples 3 to 10 show further alternative embodiments of a lightweight composite disk according to the embodiments 1 and 2 that meet the safety requirements. Example 3 material thickness glass layer chemically toughened aluminosilicate glass 0.55 mm Organic layer A OCA 50 μm Second glass layer chemically toughened aluminosilicate glass 0.55 mm Basis weight: 2.78 kg / m ² Total thickness of the organic layers: 50 μm Ratio of the thickness of the glass sheet to the total thickness of the organic layers: 1: 0.045 Example 4 material thickness glass layer chemically toughened aluminosilicate glass 1.0 mm Organic layer A Interlayer TPU 350 μm Second glass layer Chemically unbiased borosilicate glass 0.7 mm Basis weight: 4.61 kg / m ² Total thickness of the organic layers: 350 μm Ratio of the thickness of the glass sheet to the total thickness of the organic layers: 1: 0.206 Example 5 material thickness glass layer chemically toughened aluminosilicate glass 0.55 mm Organic layer A Interlayer of silicone-based, highly transparent plastic film, as the company Wacker Chemie AG / D-Munich under the name Tectosil ^® offers 200 μm Second glass layer Chemically unbiased borosilicate glass 0.21 mm Basis weight: 2.10 kg / m ² Total thickness of the organic layers: 200 μm Ratio of the thickness of the glass sheet to the total thickness of the organic layers: 1: 0.263 Example 6 material thickness glass layer Chemically toughened borosilicate glass 2 mm Organic layer A OCA 200 μm Second glass layer chemically toughened aluminosilicate glass 2 mm Basis weight: 10.19 kg / m ² Total thickness of the organic layers: 200 μm Ratio of the thickness of the glass sheet to the total thickness of the organic layers: 1: 0.05 Example 7 material thickness glass layer chemically toughened aluminosilicate glass 1.2 mm Organic layer A OCA 125 μm Second glass layer Chemically toughened borosilicate glass 1.2 mm Basis weight: 6.12 kg / m ² Total thickness of the organic layers: 125 μm Ratio of the thickness of the glass sheet to the total thickness of the organic layers: 1: 0,052 Example 8 material thickness glass layer chemically toughened aluminosilicate glass 2 mm Organic layer A OCA 50 μm Organic layer B PET liner 100 μm Organic layer C OCA 50 μm Second glass layer chemically toughened borosilicate glass 2 mm Basis weight: 10.21 kg / m ² Total thickness of the organic layers: 200 μm Ratio of the thickness of the glass sheet to the total thickness of the organic layers: 1: 0.05 Example 9 material thickness glass layer chemically toughened aluminosilicate glass 1.0 mm Organic layer A OCA 50 μm Organic layer B PET liner 100 μm Organic layer C OCA 50 μm Second glass layer Chemically unbiased borosilicate glass 1.0 mm Basis weight: 5.22 kg / m ² Total thickness of the organic layers: 200 μm Ratio of the thickness of the glass sheet to the total thickness of the organic layers: 1: 0.10 Example 10 material thickness glass layer chemically toughened aluminosilicate glass 1.0 mm Organic layer A OCA 50 μm Organic layer B PMMA insert 10 mm Organic layer C OCA 50 μm Second glass layer Chemically unbiased borosilicate glass 1.0 mm Basis weight: 12.60 kg / m ² Total thickness of the organic layers: 10.1 mm Ratio of the thickness of the glass sheet to the total thickness of the organic layers: 1: 50.5

3 to 5 show a vehicle seat 6 , which as essential elements a seat frame, not shown, a seat cushion 61 and a backrest 62 includes. In the backrest 62 is a display or a screen 7 integrated. For maintenance, cleaning and modernization purposes is the display 7 removably mounted. With the backrest 62 is still a holder 8th connected. With the bracket 8th is the storage element 9 connected. The holder 8th contains, depending on the requirement and execution hinge, rail, fixing, and / or snap-in elements. These are suitable for a, the storage element 9 to bring in a substantially vertical, upright position that the transparent region of the storage element 9 in the form of the lightweight composite disk serves as a display lens and is held in this position. The storage element 9 can be coupled by means of a lock on the display. The other is the bracket 8th suitable for the storage element 9 in a horizontal or oblique position and to hold each where it is ergonomically adapted to the passenger or adaptable. Usually, the storage element completes 9 through the retaining element 8th from the upright to the horizontal position, a tilting movement and a vertical downward movement to one or the appropriate height to serve as a table. The storage element 9 becomes essential through a lightweight composite disk 92 and a frame member 91 formed, which is the lightweight composite disk 92 surrounds. The lightweight composite disc 92 consists of a lightweight composite according to the first example 1 , from a first glass pane 11 , an organic layer A 31 and a second pane of glass 21 ,

3 shows the storage element 9 in upright position as display lens. the display 7 is ergonomically positioned at comfortable eye level of the passenger or passenger. This version is a large display. The storage element 9 is down to the frame element 91 over the entire surface through the lightweight composite disk 92 educated. The lightweight composite disc 92 covers the display 7 full area in this position, so that the representation in the display 7 through the lightweight composite disk 92 of the storage element 9 through with excellent quality. In one embodiment, the outer surface of the glass is 21 coated with an anti-reflective coating to eliminate annoying reflections and provide a clear view of the screen.

4 shows the storage element 9 in horizontal position as a storage table. The holder shown here 8th is simplified for a holder with hinge, rail, fixing, and latching elements, with which the storage element 9 in ergonomically comfortable height as a table for the passenger or passenger can be positioned. Will the storage element 9 used in this position as an operating element, for example, as an interactive control surface, it can also be placed in an ergonomically advantageous oblique position, as in 5 will be shown.

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 1 . 2 . 92 Lightweight composite pane 11 . 12 first glass pane 21 . 22 second glass pane 31 . 32 organic layer A 41 second organic layer B 51 third organic layer C 6 vehicle seat 61 seat cushions 62 backrest 7 display 8th bracket 9 storage element 91 frame element

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

• DE 19820732 C1 [0003]
• WO 2014/001155 [0004]
• WO 99/04381 [0005]
• US 2006/0075934 [0006]
• DE 102012215629 A1 [0007]
• WO 2013/055671 [0008]

Cited non-patent literature

• DIN EN 410 [0021]
• ASTM D1003 D1044 [0021]
• DIN EN 410 [0021]
• DIN EN 843-1 [0046]
• DIN EN 1288-3 [0046]
• DIN EN 843-4 [0049]
• EN ISO 6507-1 [0049]

Claims (30)

Storage element, in particular on the back of the backrest of a vehicle seat, which is supported by a holder and movably adjustable between a substantially vertical, upright position and a horizontal or oblique position, with a first side and a second side, both sides through the thickness the storage element spaced from each other are characterized in that the storage element is transparent at least in a portion that the display element is associated with a display, which is mounted in particular on the back of the back of a vehicle, wherein the storage element in the upright position a display lens for the display forms, and the storage element forms a table or a functional surface in the substantially horizontal position. Storage element according to claim 1, wherein the transparent region is formed from a lightweight composite disc comprising at least a first and a second mineral glass plate and at least one organic layer A, wherein the at least one organic layer A is arranged between the glass panes and the weight per unit area of the lightweight composite disk , 5 kg / m ² to 23 kg / m ² , preferably 1 kg / m ² to 10.5 kg / m ² , particularly preferably 1.5 kg / m ² to 6.5 kg / m ² , particularly preferably 1, 8 kg / m ² to 3 kg / m ² and the ratio of the total thickness of the mineral glass panes to the total thickness of all organic layers 1: 0.01 to 1:55, preferably 1: 0.01 to 1:25, particularly preferably 1 : 0.01 to 1: 1, more preferably 1: 0.01 to 1: 0.5 and the total thickness of all organic layers is less than or equal to 10.1 mm, preferably less than or equal to 2.1 mm, particularly preferably less than or equal to 1, 1 mm, particularly preferably less than or equal to 600 μm, very particularly b e is preferably less than 200 microns. Storage element according to claim 2, wherein the lightweight composite composite pane has a light transmittance of greater than 40%, preferably greater than 80%, particularly preferably greater than 85%, particularly preferably greater than 90%. Storage element according to claim 2 or 3, wherein the lightweight composite disk has a haze of less than or equal to 1.5%, preferably less than or equal to 1.0%, particularly preferably less than or equal to 0.5%. Storage element according to claim 2 or 4, wherein the surface of the first and / or second side of the lightweight composite pane an antireflection coating and / or an antifingerprint coating and / or an easy-to-clean coating and / or an antiscratch coating and / or an antimicrobial coating and / or has an anti-slip coating. Storage element according to one of claims 2 to 5, wherein the first and / or second glass pane of the lightweight composite pane of a lithium aluminum silicate glass, soda-lime silicate glass, borosilicate glass, alkali aluminosilicate glass, alkali-free or low-alkali aluminosilicate glass in particular from a chemically and / or thermally cured Lithium-aluminosilicate glass, soda lime silicate glass, borosilicate glass, alkali aluminosilicate glass, alkali-free or low-alkali aluminosilicate glass. Storage element according to one of claims 2 to 6, wherein the first and / or second glass pane of the lightweight composite pane is chemically hardened and the ion exchange depth of a chemical curing greater than or equal to 30 .mu.m, preferably greater than or equal to 40 .mu.m, more preferably greater than or equal to 50 .mu.m, particularly preferably greater than or equal 80 microns and the surface pressure of the glass sheet is greater than or equal to 500 MPa, preferably greater than or equal to 600 MPa, preferably greater than or equal to 700 MPa, more preferably greater than or equal to 800 MPa, more preferably greater than or equal to 900 MPa. Storage element according to one of claims 2 to 7, wherein the first and / or second glass pane of the lightweight composite pane has a 4-point bending strength of greater than or equal to 550 MPa, preferably greater than or equal to 650 MPa, more preferably greater than or equal to 800 MPa, a Young's modulus of greater than or equal to 68 GPa, preferably greater than or equal to 73 GPa, particularly preferably greater than or equal to 74 GPa, particularly preferably greater than or equal to 80 GPa, and a Vickers hardness in a non-prestressed state greater than or equal to 500 HV 0.2 / 20 kgf / mm ² (kilogram force per square meter), preferably greater than or equal to 560 HV 0.2 / 20 kgf / mm ² , more preferably greater than or equal to 610 HV 0.2 / 20 kgf / mm ² or a Vickers hardness in a prestressed state of greater than 550 HV 0.2 / 20 kgf / mm (kilogram force per square meter), preferably greater than or equal to 600 HV 0.2 / 20 kgf / mm ² , particularly preferably greater than or equal to 650 HV 0.2 / 20 kgf / mm ² , in particular preferred gt of greater than or equal to 680 HV 0.2 / 20 kgf / mm ² . Storage element according to one of claims 2 to 8, wherein the thickness of the first and / or second glass pane of the lightweight composite pane is less than or equal to 2 mm, preferably less than or equal to 1.2 mm, more preferably less than or equal to 0.55 mm, particularly preferably less than or equal to 0.35 mm and greater than or equal to 20 microns, preferably greater than or equal to 40 microns, more preferably greater than or equal to 70 microns, more preferably greater than 100 microns. Storage element according to one of claims 2 to 9, wherein the transparent region is formed from a lightweight composite disc comprising a second organic layer B and third organic layer C, the second organic layer B disposed between the first organic layer A and the third organic layer C. and the three organic layers A, B, C are disposed between the one and the second glass sheets. Storage element according to one of claims 2 to 10, wherein the one organic layer A and / or the third organic layer C of a hot melt adhesive, in particular of a polyvinyl butyral (PVB) or a thermoplastic urethane-based elastomer (TPE-U) or an ionomer or a Polyolefin, such as an ethylene vinyl acetate (EVA), or a polyethylene or a polyethylene acrylate or a thermoplastic silicone or from a transparent adhesive film, in particular from an optical clear adhesive (OCA). Storage element according to one of claims 2 to 11, wherein the organic layer B of a polyethylene terephthalate (PET), polycarbonate (PC), polymethylmethacrylate (PMMA), polyamide (PA), polyimide (PI) or a polyolefin such as polyethylene (PE) or polypropylene (PP), or in each case one of their blends, copolymers or derivatives or of a fluorinated and / or chlorinated polymer, such as ethylene-tetrafluoroethylene (ETFE), polytetrafluoroethylene (PTFE), polyvinyl chloride (PVC), polyvinylidene chloride (PVdC) or polyvinylidene fluoride (PVDF) consists. Storage element according to one of claims 2 to 12, wherein the organic layer B has a thickness of less than or equal to 10 mm, preferably less than or equal to 2 mm, more preferably less than or equal to 1 mm, particularly preferably less than or equal to 0.3 mm, most preferably less than or equal to 0.1 mm. Storage element according to one of claims 2 to 13, wherein the pure transmission of an organic layer A and / or the third organic layer C is greater than 88%, preferably greater than or equal to 92%, more preferably greater than or equal to 96%, particularly preferably greater than or equal to 99%. Storage element according to one of claims 2 to 14, wherein the difference in the refractive index of each arranged in a light weight composite disc materials is less than or equal to 0.3, preferably less than or equal to 0.25, preferably less than or equal to 0.2, more preferably less than or equal to 0.15, particularly preferably less than or equal to 0.09. Storage element according to one of the preceding claims, wherein in the upright position facing away from the display side of the storage element is the second side and functional elements for operation and control of the display in the display, and / or the transparent region of the storage element is designed as a touch screen, which of the second side of the storage element is operated from. Storage element according to one of the preceding claims, wherein the in the substantially horizontal position upwardly facing side of the storage element is the first side and has functional elements for operation and control of the display in the display and / or the transparent region of the storage element is designed as a touch screen, which from the first page of the storage element is operable. Storage element according to one of claims 1 to 16, wherein the in the substantially horizontal position upwardly facing side of the storage element is the first side, which is associated with a projector, by means of which in particular on the transparent area of the first side of a display of functional or Operating elements for operating and controlling the display are projected on the display and this area of the first page contains sensors or this area of the first page is assigned one or more external sensors which record the input or control commands. Storage element according to one of the preceding claims, wherein the first and / or second glass pane of the lightweight composite pane is formed as a switchable glass or is connected to a switchable film, by means of which the transparent region of the storage element is variable in transparency. Storage element according to one of the preceding claims, wherein the first and / or second glass pane of the lightweight composite pane with an interactive surface, preferably formed by a bonded film, by means of which the first and / or second glass of the transparent portion of the storage element as a touch kiosk, interactive Projection or interactive table can be used. Storage element according to one of the preceding claims, wherein the lightweight composite disk has one or more integrated heating elements on its first side arranged in the storage element. Storage element according to one of the preceding claims, wherein the lightweight composite disk is half-mirrored on its arranged in the storage element second side, at least in a partial region. Storage element according to one of the preceding claims, wherein the lightweight composite disk is three-dimensionally deformed and / or has at least one recess in at least one subregion. Storage element according to one of the preceding claims, wherein the storage element comprises in the region of its transparent region on its first and / or second side a movable, in particular displaceable cover, by means of which the transparent region on the first and / or the second side can be covered. Storage element according to one of the preceding claims, wherein the storage element in the region of its transparent region on its first and / or second side has a transparent privacy cover as a privacy filter. Storage element according to one of the preceding claims, wherein the storage element has an interface for the integration of a mobile device. Use of a storage element according to one of the preceding claims with an at least partially transparent region in a substantially horizontal position as a table or functional surface, and in an upright position as a display lens for a display element associated display, wherein the table or the functional surface is supported by a holder and by means of the holder between an upright position and a substantially horizontal position is movable. Use of a storage element according to claim 26 as a seat-integrated folding table and seat-integrated display lens for a vehicle seat, in particular for an aircraft, train, bus or ship, in particular ferry. Use of a lightweight composite composite pane according to one of Claims 2 to 15 for a storage element according to Claim 1 or one of Claims 16 to 25. A vehicle seat comprising a seat frame, a seat cushion coupled to the seat frame, a seat back coupled to the seat frame with a fixed or detachably integrated display system, and a storage element associated with the seat back according to claim 1.

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