EP1052879A2 - Flächenelement - Google Patents
Flächenelement Download PDFInfo
- Publication number
- EP1052879A2 EP1052879A2 EP00110008A EP00110008A EP1052879A2 EP 1052879 A2 EP1052879 A2 EP 1052879A2 EP 00110008 A EP00110008 A EP 00110008A EP 00110008 A EP00110008 A EP 00110008A EP 1052879 A2 EP1052879 A2 EP 1052879A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- component
- plate
- element according
- shaped component
- tensioning
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/02—Casings; Cabinets ; Supports therefor; Mountings therein
- H04R1/028—Casings; Cabinets ; Supports therefor; Mountings therein associated with devices performing functions other than acoustics, e.g. electric candles
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R7/00—Diaphragms for electromechanical transducers; Cones
- H04R7/02—Diaphragms for electromechanical transducers; Cones characterised by the construction
- H04R7/04—Plane diaphragms
- H04R7/045—Plane diaphragms using the distributed mode principle, i.e. whereby the acoustic radiation is emanated from uniformly distributed free bending wave vibration induced in a stiff panel and not from pistonic motion
Definitions
- the invention relates to a surface element with a plate-shaped Component and with at least one converter that the component stimulates bending vibrations, resonates and thereby forming an acoustic multimode resonance radiator.
- This surface element has the function of a flat speaker.
- Loudspeakers are known which are used as loudspeakers on the Are attached to the ceiling and the electroacoustic transducer with a through a voice coil driven membrane for generation of sound waves in a housing. These flat speakers turn out to be very heavy, very expensive and in view on the design of the room as very unsuitable.
- loudspeakers are known that have a large number of individual ones have electroacoustic transducers in the ceiling, wherein the electroacoustic transducers largely evenly over the entire ceiling are spread out.
- the electroacoustic transducers show a typical structure with a through a voice coil driven membrane, which the sound waves through stroke movements produce.
- the variety of electroacoustic transducers required a very elaborate wiring in the ceiling, which is related with the multitude of electro-acoustic transducers into one very expensive arrangement leads to the sound of a room.
- ceiling tiles with a Known transducer that put the ceiling panel in bending vibrations can and resonate so that this Plate a multi-mode resonance emitter to play a supplied electrical audio signal forms.
- This ceiling tile shows a very good spatial radiation characteristic of the acoustic Audio signal. However, it shows unsatisfactory acoustics especially in the bass range and it shows through the plane Training as a ceiling tile has limited access for design freedom when designing the ceiling tile with the converter.
- the invention has for its object to a surface element create what good acoustic properties especially in the Bass range and also with regard to the spatial sound distribution shows and that is also an inexpensive option for sound reinforcement in a room and above design variations are also accessible.
- the surface element according to the invention shows a plate-shaped Component on which at least one converter is arranged, which an electrical audio signal is supplied and which the plate-shaped component in bending vibrations that the Let the component resonate and it becomes a multimode resonance radiator let be.
- the surface element shows one Clamping device, which is connected to the plate-shaped component and which is this plate-shaped component under tension holds. Due to the tensioned condition of the plate-shaped Component, the acoustic properties of the surface element change, which acts as a flat speaker in that that it is compared to a freely stored component creates additional resonances in the low frequency range. Leave with it better acoustic properties in the bass range achieve a very good spatial distribution of the sound.
- this surface element proves to be particularly suitable for use as a flat speaker, especially in large rooms. Especially when used in low, large rooms advantageous acoustic properties come in particular to advantage.
- This surface element also proves to be as very inexpensive because of sufficient sound of appealing quality only a small number of the invention Area elements is necessary and therefore the Cost of a sound system for a given room can be kept very low.
- the tensioning device is designed so that it engages plate-shaped component and the plate-shaped component tensioned or stretched in the direction of the planar direction of expansion holds.
- This clamping device can be used as a full-surface box comprise the plate-shaped component and in one area have a recess that the sound radiation of the plate-shaped Component.
- the edge area of the plate-shaped component firmly connected to the clamping device, so that given by the tensioned plate-shaped component Clamping forces are transferred to the clamping device and the plate-shaped component in a defined, defined Position or kept in a corresponding tensioned state can be.
- the box-shaped Clamping device shows recesses and thereby the possibility gives sound through the other openings.
- the clamping device is formed only from individual webs or struts that the Counteract tension in the plate-shaped component and this Maintain tension.
- the Clamping device used the surface element on the ceiling, for example on a hook, for example in the ceiling to fix or the surface element with the clamping device in a recess in the ceiling.
- any other surface is also suitable for the ceiling.
- the size and shape of the surface element preferably chosen so that it is a passive ceiling panel can replace without sound-emitting function, without a changed Suspension and changed optical properties of the ceiling with the surface element according to the invention as a replacement for a passive ceiling panel are given.
- the buttress which is the plate-shaped component, which the acoustic signals generated by multi-mode resonance, embraces, enables at sufficient resistance to the resilience of the tensioned plate-shaped component a very reduced weight Training of the clamping device, which is why this training of the surface element particularly suitable for the arrangement in a blanket or on a blanket.
- This Formation of the surface element it is possible to costly fasteners in the ceiling or on the To waive ceiling for fastening the surface element, what in addition to the cost advantages, there are also advantages for the external design of the surface element and the ceiling with the surface element gives.
- the use of light metals and the Use of hollow bodies, especially tubes for formation the struts for the strut to further reduce weight with sufficient resistance to the resilience of the plate-shaped component has proven particularly successful.
- the Clamping forces between the component and the strut over one Transfer tension rope that between the buttress and the tensioned plate-shaped component is arranged and so under Train stands that the tension of the plate-shaped component is maintained remains.
- the tension rope has proven particularly useful either in holes in the edge area of the plate-shaped component to intervene or in hemstitch sections in the edge area of the component and outwards to the strut to tension.
- the plate-shaped component which is held tensioned by a tensioning rope, in its edge region in which the tensioning rope is arranged by a tensioning element which transmits the forces from the tensioning rope evenly to the area of the plate-shaped component, which is particularly suitable for multimode resonance formation and is stimulated to do so.
- the tensioning element is provided with the holes or with the cavity sections for receiving the tensioning cable and it encloses the entire area of the plate-shaped component, which is particularly suitable and provided for the formation of multimode resonances.
- This area of the plate-shaped component is preferably designed as a flat plate, which is constructed in a sandwich-like manner from at least three layers that are arranged one above the other, fully glued or welded.
- the cover layers are designed so that the square root of the quotient of their modulus of elasticity to their density is particularly high, in particular> 3000 m / s. Fiber-reinforced plastic films or thin metal films are particularly suitable for this.
- the core layer is preferably designed as a foamed core or as a honeycomb-shaped core layer, which preferably have a density of less than 50 kg / m 3 .
- the tensioning element is either fastened on one side to one of the cover layers and thus transmits the tensioning force between the tensioning device and the sandwich-like structure of the plate-shaped component via the tensioning element to this cover layer or the tensioning element is simultaneously connected to the upper cover layer and to the lower cover layer which causes a uniform and reduced power transmission to the individual cover layers.
- This double-sided connection of the tensioning element to both cover layers means that greater tensioning forces can be transmitted to the tensioning device, thus opening up a larger bass range for additional multimode resonances of the surface element.
- the tensioning device extends to both sides of the plate-shaped Component, on the one hand is a very stable and also withstand high clamping forces of the plate-shaped component Clamping device for the flat element as a flat speaker given.
- This can increase the number the multimode resonances in the low frequency range, which are also called "drum resonances" be called by the increased tension of the plate-shaped component can be achieved.
- This leads to one acoustically very appealing sound behavior, due to the good bass reproduction especially for use as a flat speaker suitable is.
- the surface element proves to be with a double-sided clamping device, which in particular is provided with a buttress, as aesthetically very appealing, which is particularly important when training as from Ceiling hanging surface element is given.
- the tensioning device with at least one spring element to be provided either as a tension spring or as a compression spring acts and by its spring force the resilience of the tensioned counteracts plate-shaped component.
- the tensioning device is designed so that the spring force of the spring element over the movably designed Transfer the clamping device to the plate-shaped component can be.
- This jig shows articulated connections of the individual components of the clamping device, whereby the required mobility of the clamping device Transfer of the spring force of the spring element to the tensioned Component is enabled.
- the spring element is either interchangeable, i.e.
- the spring element against one spring element with another Spring constant replaceable, or the spring element is by an adjusting element in its spring action and thus in its spring constant variably trained.
- This allows according to the appropriate location of the surface element the optimal acoustic properties of the spring properties of the spring element and thus determine the degree of tension in the plate-shaped component.
- the surface element for certain acoustic signals accordingly in the acoustic Adapting the sound behavior, that means strong bass-emphasized acoustic Signals are with a surface element with the spring element reproduced more tensioned component while acoustic signals with little or no relevant bass content reproduced with an almost unstressed plate-shaped component become.
- One or more has proven to be particularly advantageous Striving of the strut with one or more lighting elements to provide and thereby create a surface element that both the functionality of a flat speaker as well as one Ceiling lamp united. This is done in one Way that just when training the filament as elongated filament, possibly the struts form the buttress, a very light and very appealing Design of the surface element is given. This The design of the surface element proves to be light and its functional training as very interesting and as very appealing to the user.
- the Striving the strut and / or the plate-shaped component becomes an additional optical effect due to light refraction and light diffraction and light discoloration achieved what the design makes this surface element even more interesting.
- this surface element with several different colors Luminaires to be provided accordingly the acoustic signal can be controlled differently, so that not just one controlled by the electrical audio signal acoustic signal, but also a correspondingly controlled one optical signal through this special surface element is played.
- the Has surface element as a light source and as an acoustic source it has proven particularly advantageous to supply energy the filament can also be used to operate the converter. This creates a very efficient arrangement for energy supply both functionalities of the surface element what the costs of such a surface element in particular the background that a plurality of such surface elements necessary for sound and lighting of a larger room are low.
- the transducer In addition to the possibility of using the transducer as an inertial vibration transducer it has to train especially with heavy converters proven to connect these with struts of the clamping devices and thereby the weight of the transducers by the jig record and keep away from the plate-shaped component.
- the number and distribution of these resonances is clear in direct connection with the good acoustic properties of the surface element according to the invention.
- the Invention the plate-shaped component a circumferential soft elastic Show bead (edge bead).
- the bead can do it among other things enclose the component at its extreme circumference, be embedded in the plate-shaped component or be chamfered at an angle to the plate-shaped component.
- Prefers is the bead by means of a snap fastening mechanism or a cutting / clamping device on the frame and / or plate-shaped Component attached.
- the bead contains a reinforcing body.
- the surface element according to the invention shown in Fig. 1 shows a plate-shaped component 1 with a sandwich Structure of two thin, film-like cover layers, one Core layer of transverse cell structure, which in particular is honeycomb-shaped, enclose.
- the Clamping device 3 of box-like shape and designed so that the rigidity of component 1 due to its rigidity can withstand and thereby the tension in the component 1 can maintain permanently.
- transducers 2 On the clamping device 3 facing side of the plate-shaped Component 1, three transducers 2 are arranged together form a so-called driver field.
- the converter 2 will controlled with an electrical audio signal and stimulate that plate-shaped component 1 to bending vibrations, whereby it receives the function of a known multimode resonance radiator.
- the supply of the electrical audio signal to the transducers 2 is not shown.
- Set the transducers 2 shown Inertial vibration transducers that vibrate freely without Attachment to another part of the surface element on the plate-shaped component 1 are arranged and the electrical Convert audio signal into mechanical movements and thus that Excite plate-shaped component 1 to bending vibrations.
- the surface element with a through Clamping device 3 held plate-shaped component 1 there is improved acoustics, especially in the bass range.
- this can be designed as a flat speaker Surface element by means of the clamping device 3, the is designed as a rigid body, in the ceiling as a replacement for a passive surface element can be arranged.
- a cover 9 on the underside of the plate-shaped Part 1 of the surface element it is possible to change the look of the surface element according to the invention to the optics of others adapt passive surface elements so that a uniform optical impression of the ceiling by the inventive surface element sound-proofed room is given.
- a surface element is described, which is also a Arrangement from a plate-shaped component 1 and fastened thereon Transducers 2 shows. There are two different ones Transducer 2 arranged on the plate-shaped component 1.
- the Clamping device 3 shows a strut 4, which is a central Strut 12 as an abutment and two struts 13 as a lever and a strut 4a, which has a spring element 8 for Definition of the counteracting force of component 1 Strength, shows.
- the component 1 is in its edge area via a connecting element 11, which is formed like a film, with non-positively the strut 13 connected.
- the strut 13 forms a lever that around a support point formed by the end of the strut 12 is rotatably mounted. If the strut 13, the one forms two-sided lever, one side of which by means of the connecting element 11 connected to the plate-shaped component 1 is pivoted about the pivot point, the tension in the plate-shaped component 1 increased or decreased.
- the other Side of the two-sided lever formed by the strut 13 is, by the strut 4a with the spring element 8 in Direction to the corresponding side of the other two-sided Lever a, which is formed by the other strut 13, moves, thus the distance between these two sides of the struts 13 is reduced, this increases the distance between the other two sides of the two struts 13, so that the plate-shaped component over the Connecting elements 11 is stretched and thus the tension in the plate-shaped component is increased.
- the spring element 8 in particular its spring constant, can be the measure of the tension that is present in the plate-shaped component 1 set in the state of equilibrium and thus also the acoustic properties of the surface element according to the invention establish.
- This formation of the clamping device 3 by means of the struts 13 designed as a two-sided lever shows one technically simple and aesthetically very appealing and technically easy to understand construction of the surface element, which encourages a not inconsiderable proportion of buyers to buy.
- a surface element is particularly suitable as a free-floating element Area element viewed from several sides can be used, especially in high rooms can be used.
- the surface element shown in FIG. 3 shows in component 1, that with a piezo driver 2 and an electrodynamic dipole driver 2 is equipped.
- the tensioning device 3 shows a Buttress 4, which on both sides of the plate-shaped component 1 is formed.
- the strut 4 shows struts 4a that over rigid node connections form 15 connecting triangles and are interconnected.
- joints 14 are arranged in the edge area of the buttress 4 joints 14 are arranged. Struts are arranged on these joints, which are each provided with spring elements 8 and which the two sides of the strut 4 on both sides of the Try to push apart plate-shaped component 1.
- the Joints 14 are connected in pairs to one another via a tension cable 5. If the joints 14 connected in pairs are moved apart, this leads to a reduction in the lateral deflection of the tension cable 5 transversely to the connecting direction of the two connected joints 14.
- the tension cable 5 is with a tension element 7 connected that the edge region of the plate-shaped component 1 forms, depending on the lengthening or shortening of the side Distance of the rope 5, the plate-shaped component 1 less or more tension.
- the tensioning element 7 shows Holes into which the tension cable 5 engages, which means that through the Extension of the distance between the joints 14 train by the tension rope 5 on the tension element 7 on the bending vibration excited component 1 is transmitted.
- the clamping element 7 is sandwiched with both top layers of the plate-shaped component connected, creating a uniform Initiation of the tensile force of the tension cable 5 is possible and the Risk of tearing out of the connection area 10 due to the reduced transmission force due to the increased number the connection areas is significantly reduced.
- the surface element described is preferably located centrally on one the middle node 15, which the struts 4a of the buttress rigidly connected to each other suspended from the ceiling.
- the struts 4a which on the side facing away from the transducers 2 plate-shaped component 1 are arranged, are partially transparent material and part other than Luminous body formed, whereby the surface element shown acts both as a flat speaker and as a lamp.
- the Energy supply for both those trained as luminous bodies Struts 4a as well as for the converter 2 are made via a common one Supply.
- the electrical acoustic signal is switched on a separation stage from the power supply to the filament separated and fed to the transducers 2.
- the invention shown in a plan view in Fig. 4 Surface element shows a symmetrical three-leg structure of the strut 4 with three struts 4a, the tensioning device 3 form.
- the struts 4a show in their end regions rigid nodes 15, which are firmly connected to each other and to create other elements of the surface element.
- a clamping element 7 is fastened to the ends of the struts 4a, which is tensioned by means of a tension cable 5.
- the clamping element 7 encloses the area of the plate-shaped component 1, which by means of the transducer 2 to bending vibrations and thus too a multi-mode resonance is excited.
- the central node 15 of the three struts 4a is particularly suitable for arranging a suspension point for this surface element, that as a free-hanging surface element with speaker function and more appealing, lighter outer shape is provided.
- a plate-shaped component 1 (sound plate) provided on the Bottom has a cover 9 (for example, decorative layer).
- Transducers 2 are applied to the plate-shaped component 1, to set the plate-shaped component 1 in vibration.
- the tensioning device 3 is again provided, which are above the plate-shaped component 1 and the driver 2 is located on the opposite side of the cover Side of the plate-shaped component 1 is attached.
- the plate-shaped component 1 is located in a mounting frame 16, the edge lengths of the plate-shaped component 1 adapted to the predetermined grid dimension of the mounting frame 16 are (maximum format).
- the mounting frame 17 can For example, the entire arrangement can be used to attach a ceiling.
- the plate-shaped component 1 consists of an upper one Cover layer 18, a lower cover layer 20 and an intermediate layer Core layer 19. The three layers are included glued together. With the plate-shaped component 1 is the all-round soft-elastic bead 17 by means of an adhesive joint 21 glued. In the same way, the circumferential soft elastic Bead 17 with the mounting frame 16 by means of an adhesive joint 22 are glued. Cover 9 (decorative layer) covered the lower cover layer 20 completely.
- connection technology is that with the simplest means a simple production and a simple Assembly is given.
- the embodiment 6 is compared to the embodiment 5 modified so that the plate-shaped Component 1 with a recessed, all-round soft elastic Bead 23 supported on the T-profile of the mounting frame 16 is.
- the circumferential soft elastic bead 17 is in turn by means of Adhesive joints 21 and 22 with the plate-shaped component 1 or the mounting frame 16 glued.
- the plate-shaped component 1 is over the flange width of the Mounting frame 16 milled so that the decorative layer 9 to lie on the same level as the lower edge of the mounting frame 16 is coming. Both the cover 9 and the lower cover layer 20 are in the edge region of the plate-shaped component 1 been removed. In addition, the core layer 19 was made by milling weakened. To compensate for the mechanical weakening the exposed cell structure of the core layer 19 in the edge region can be filled by pouring or filling. Between the mounting frame 16 and the unprocessed area of the plate-shaped component 1 becomes a narrow space 23 kept clear so that the plate-shaped component vibrates does not touch the hard mounting frame 16. Advantage is in addition to a simple assembly that the cover 9 and the Mounting frame 16 lie in one plane.
- the plate-shaped component 1 obliquely chamfered so that a suitably shaped, circumferential bead 24 represents an inclined fit for the plate-shaped component 1.
- the bead 24 is dimensioned so that the cover 9 on the same level as the lower edge of the mounting frame 16 comes to rest.
- the circumferential bead 24 is made of soft elastic Made of plastic and with the plate-shaped Component 1 glued by means of an adhesive joint 25.
- a Snap fastener 26 is provided, which thereby realized constructively is that a circumferential knob-like edition of the Mounting frame 16 with a matching circumferential notch of the bead 24 cooperates.
- a narrow space 23 remains free to touch plate-shaped component 1 and mounting frame 16 when vibrating to prevent or cover 9 can be pulled through so that it also covers the bead 16.
- Fig. 8 is again a self-supporting plate-shaped component 1 consisting of the upper cover layer 18, the core layer 19 and the lower cover layer 20 provided.
- the three layers are in turn with each other glued.
- the edge lengths of the plate-shaped component 1 are, however, smaller than the specified grid dimension of the mounting frame 16 (standard format). That means the plate-shaped Component 1 is produced in a standard format and in a section of a larger, passive one to be made on site plate-shaped component 26 is used.
- the edge of the plate-shaped component 1 is obliquely all around chamfered so that a suitably shaped, all-round elastic Bead 27 for the plate-shaped component 1 an inclined fit represents.
- the bead 27 is dimensioned so that the cover 9 is on the same level as the lower edge of the Mounting frame 16 comes to rest.
- the bead 27 is made of soft elastic Made of plastic and with the plate-shaped Component 1 glued. It serves as a distortion-free, articulated connection with an all-round hard panel frame 28.
- the cover 9 is larger than the lower cover layer 20 of the plate-shaped Component 1, so that an adhesive joint 29 between plate-shaped Component 1 and bead 27 is covered.
- the bead 27 is used in the manufacture of a plate Component 1 glued to this and the panel frame 28.
- the advantage here is that the cover 9 and the mounting frame 16 lie in one level and easy assembly and an airtight fit is guaranteed. For example regardless of the size of the ceiling panels required for insulation a mass produced sound panel in Standard format used.
- a plate-shaped Component 33 integrated in an absorber plate 34.
- a T-frame profile 35 is provided on which on a Side of the absorber plate 34 and on the other side elastic bead 32 connects.
- the bead 32 is there between the plate-shaped component 33 and the T-frame profile 35 arranged.
- the T-frame profile 35 has a snap mechanism 36 on, which clamps the absorber plate 34 and thus the T-frame profile 35 attached to the absorber plate 34.
- the plate-shaped component 33 is attached by means of an adhesive layer 37 the bead 32 attached.
- the attachment of the T-frame profile 35 finally takes place on the elastic bead 32 by means of a Cutting / clamping device 38, the one hand flat on the Bead 32 presses and on the other hand at the corresponding T-protuende for example by means of the cutting / clamping device in a U-profile 38 arranged prongs is held.
- the U profile is put on the T-profile end.
- the bead 32 contains a stiffening body 39 which, for example from a hardened foam layer or deposits consists of and soft elastic material of the bead 32 is surrounded.
- there is one on the front Decorative layer 40 is provided, which over bead 32 and plate-shaped Component 33 extends.
- the bead 32 serves two purposes. On the one hand, it serves for vibration decoupling between plate-shaped component 33, T-frame profile 35 and cutting / clamping device 38. On the other he carries the plate-shaped component 33.
- the in the soft elastic Material of the bead 32 is stiffening in the form of the stiffening body 39 prevents the plate-shaped Component 33 sags or the bead 32 kinks.
- the thickness and the material and thus the necessary stiffness of the bead 32 are among others of the hardness of the soft elastic and depending on the rigid material.
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Multimedia (AREA)
- Diaphragms For Electromechanical Transducers (AREA)
- Details Of Audible-Bandwidth Transducers (AREA)
Abstract
Description
- Fig. 1
- zeigt in einer geschnittenen Darstellung ein beispielhaftes Flächenelement mit kastenförmiger Spannvorrichtung.
- Fig. 2
- zeigt in geschnittener Darstellung ein beispielhaftes Flächenelement mit einer Spannvorrichtung mit Strebewerk,
- Fig. 3
- zeigt in einer geschnittenen Darstellung ein anderes beispielhaftes Flächenelement mit Spannvorrichtung und Strebewerk,
- Fig. 4
- zeigt in einer Draufsicht ein anderes beispielhaftes Flächenelement mit Spannvorrichtung, mit Strebewerk und Spannelement,
- Fig. 5
- zeigt ein anderes beispielhaftes Deckenelement mit Spannvorrichtung und einem aufgesetzten weichelastischen Randwulst,
- Fig. 6
- zeigt ein beispielhaftes Deckenelement mit einer Spannvorrichtung und einem eingelassenen, weichelastischen Randwulst,
- Fig. 7
- zeigt ein beispielhaftes Deckenelement mit einem schräg angefasten, weichelastischen Randwulst und einer Schnappbefestigung,
- Fig. 8
- zeigt ein beispielhaftes Deckenelement mit einem weichelastischen Randwulst und einer Schnappbefestigung in einem Ausschnitt eines passiven Deckenelements und
- Fig. 9
- zeigt ein beispielhaftes Deckenelement mit einem einen Verteilungskörper enthaltenden, weichelastischen Randwulst und einer Schneid-/Klemmvorrichtung.
- 1
- plattenförmiges Bauteil
- 2
- Wandler
- 3
- Spannvorrichtung
- 4
- Strebewerk
- 4a
- Strebe
- 5
- Spannseil
- 6
- Hohlsaumabschnitt
- 7
- Spannelement
- 8
- Federelement
- 9
- Abdeckung
- 10
- Verbindungsbereich
- 11
- Verbindungselement
- 12
- Strebe für Widerlager
- 13
- Strebe als zweiseitiger Hebel
- 14
- Gelenk
- 15
- Knoten
- 16
- Montagerahmen
- 17
- weichelastischer Wulst
- 18
- obere Deckschicht
- 19
- Kernschicht
- 20
- untere Deckschicht
- 21
- Klebefuge
- 22
- Klebefuge
- 23
- Zwischenraum
- 24
- Wulst
- 25
- Klebefuge
- 26
- plattenförmiges Bauteil
- 27
- Wulst
- 28
- Paneelrahmen
- 29
- Klebefuge
- 30
- Schnappbefestigung
- 31
- O-Ring-Dichtung
- 32
- Wulst
- 33
- plattenförmiges Bauteil
- 34
- Absorberplatte
- 35
- T-Rahmenprofil
- 36
- Schnappmechanismus
- 37
- Kleberschicht
- 38
- Schneid-/Klemmvorrichtung
- 39
- Versteifungskörper
- 40
- Dekorschicht
Claims (20)
- Flächenelement mit einem plattenförmigen Bauteil und mit wenigstens einem Wandler, der, auf dem Bauteil angeordnet, durch ein elektrisches Audiosignal angesteuert das Bauteil in Biegeschwingungen mit seiner Eigenresonanzfrequenz anregt, um damit einen akustischen Multimoden-Resonanz-Strahler zu bilden,
dadurch gekennzeichnet, dass das Flächenelement eine Spannvorrichtung (3) aufweist, die mit dem Bauteil (1) verbunden ist und die das Bauteil (1) unter Spannung hält. - Flächenelement nach Anspruch 1,
dadurch gekennzeichnet, dass die Spannvorrichtung (3) zur Aufhängung des Flächenelementes in oder an einer Decke vorgesehen ist. - Flächenelement nach Anspruch 1 oder 2,
dadurch gekennzeichnet, dass die Spannvorrichtung (3) ein Strebewerk (4) aufweist, das die Spannkräfte des Bauteils (1) aufnimmt und das Bauteil (1) unter Spannung hält. - Flächenelement nach Anspruch 3,
dadurch gekennzeichnet, dass das Strebewerk (4) Streben (4a) aufweist, die so miteinander verbunden sind, dass das Strebewerk (4) eine polygone Gestalt aufweist und die Streben (4a) nur unter Zug oder auf Druck belastet sind. - Flächenelement nach einem der vorstehenden Ansprüche,
dadurch gekennzeichnet, dass das Strebewerk (4) der Spannvorrichtung (3) mit dem Bauteil (1) mittels eines Spannseils (5) verbunden ist und das Spannseil (5) die Spannkräfte zwischen dem Bauteil (1) und dem Strebewerk (4) überträgt. - Flächenelement nach Anspruch 5,
dadurch gekennzeichnet, dass das Bauteil (1) im Randbereich Löcher aufweist, in die das Spannseil (5) eingreift. - Flächenelement nach Anspruch 5,
dadurch gekennzeichnet, dass das Bauteil (1) im Randbereich einen oder mehrere Hohlsaumabschnitte (6) aufweist, welche das Spannseil (5) aufnehmen und welche die Spannkräfte zwischen dem Strebewerk (4) und dem Bauteil (1) über das Spannseil (5) übertragen. - Flächenelement nach einem der Ansprüche 5, 6 oder 7,
dadurch gekennzeichnet, dass das plattenförmige Bauteil (1) in seinem Randbereich ein ringförmig das plattenförmige Bauteil (1) umschließendes Spannelement (7) aufweist, das mit dem Spannseil (5) verbunden ist und die Spannkraft vom gespannten plattenförmigen Bauteil (1) über das Spannseil (5) zur Spannvorrichtung (3) überträgt. - Flächenelement nach einem der vorstehenden Ansprüche,
dadurch gekennzeichnet, dass die Spannvorrichtung (3) sich zu beiden Seiten des Bauteils (1) erstreckt. - Flächenelement nach einem der vorstehenden Ansprüche,
dadurch gekennzeichnet, dass wenigstens ein Federelement (8) in der Spannvorrichtung (3) vorgesehen ist, das eine spannkraft auf das Bauteil (1) bewirkt. - Flächenelement nach einem der vorstehenden Ansprüche,
dadurch gekennzeichnet, dass elektrische Zuleitungen vorgesehen sind, die durch die Spannvorrichtung (3) gebildet werden oder die damit fest verbunden sind. - Flächenelement nach einem der vorstehenden Ansprüche 3 bis 11,
dadurch gekennzeichnet, dass eine oder mehrere Streben (4a) des Strebewerks (4) mit einem oder mehreren Leuchtkörpern versehen sind und insbesondere die Streben (4a) oder das Bauteil (1) durchsichtig ausgebildet sind. - Flächenelement nach einem der vorstehenden Ansprüche 3 bis 12,
dadurch gekennzeichnet, dass einer oder mehrere Wandler (2) mit einer oder mehreren Streben (4a) des Strebewerks (4) verbunden sind und die Streben (4a) das Gewicht des mit ihnen verbundenen Wandlers (2) aufnehmen. - Deckenelement nach einem der vorstehenden Ansprüche 1 bis 13,
dadurch gekennzeichnet, dass das plattenförmige Bauteil (1) einen umlaufenden weichelastischen Wulst (17, 24, 27, 32) aufweist. - Deckenelement nach Anspruch 14,
dadurch gekennzeichnet, dass der Wulst (24) das plattenförmige Bauteil (1) an seinem äußersten Umfang umschließt. - Deckenelement nach Anspruch 14,
dadurch gekennzeichnet, dass der Wulst (24) in das plattenförmige Bauteil (1) eingelassen ist. - Deckenelement nach Anspruch 14,
dadurch gekennzeichnet, dass der Wulst (24) schräg an das plattenförmige Bauteil (1) angefast ist. - Deckenelement nach einem der vorstehenden Ansprüche 14 bis 17,
dadurch gekennzeichnet, dass der Wulst (24) mittels eines Schnappbefestigungsmechanismus (30) an dem Rahmen (28) und/oder plattenförmigen Bauteil (1) befestigt ist. - Deckenelement nach einem der vorstehenden Ansprüche 14 bis 17,
dadurch gekennzeichnet, dass der Wulst (32) mittels einer Schneid-/Klemmvorrichtung (38) an einem Vorsprung (36) des Rahmens (35) befestigt ist. - Deckenelement nach einem der vorstehenden Ansprüche 14 bis 18,
dadurch gekennzeichnet, dass der Wulst (32) einen Versteifungskörper (39) enthält.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE1999122395 DE19922395C1 (de) | 1999-05-14 | 1999-05-14 | Deckenelement |
DE19922395 | 1999-05-14 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1052879A2 true EP1052879A2 (de) | 2000-11-15 |
EP1052879A3 EP1052879A3 (de) | 2005-07-27 |
Family
ID=7908164
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP00110008A Withdrawn EP1052879A3 (de) | 1999-05-14 | 2000-05-12 | Flächenelement |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP1052879A3 (de) |
DE (1) | DE19922395C1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2003013186A1 (de) * | 2001-07-13 | 2003-02-13 | Harman Becker Automotive Systems Gmbh | Plattenlautsprecher |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2004082320A2 (de) | 2003-03-11 | 2004-09-23 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Integriertes lautsprechersystem |
DE10314506B3 (de) * | 2003-03-11 | 2004-12-16 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Integriertes Lautsprechersystem |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1001011B (de) * | 1955-08-11 | 1957-01-17 | Rundfunktechnisches Inst G M B | Einrichtung zur Erzeugung von kuenstlichem Nachhall |
DE2819615A1 (de) * | 1978-05-05 | 1979-11-08 | Messerschmitt Boelkow Blohm | Verfahren zur erzielung gleichmaessiger schallverteilungseigenschaften |
WO1999052324A1 (en) * | 1998-04-02 | 1999-10-14 | New Transducers Limited | Acoustic device relying on bending wave action |
WO1999060818A1 (de) * | 1998-05-15 | 1999-11-25 | Harman Audio Electronic Systems Gmbh | Plattenlautsprecher |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SK25798A3 (en) * | 1995-09-02 | 1998-09-09 | New Transducers Ltd | Loudspeakers comprising panel-form acoustic radiating elements |
-
1999
- 1999-05-14 DE DE1999122395 patent/DE19922395C1/de not_active Expired - Fee Related
-
2000
- 2000-05-12 EP EP00110008A patent/EP1052879A3/de not_active Withdrawn
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1001011B (de) * | 1955-08-11 | 1957-01-17 | Rundfunktechnisches Inst G M B | Einrichtung zur Erzeugung von kuenstlichem Nachhall |
DE2819615A1 (de) * | 1978-05-05 | 1979-11-08 | Messerschmitt Boelkow Blohm | Verfahren zur erzielung gleichmaessiger schallverteilungseigenschaften |
WO1999052324A1 (en) * | 1998-04-02 | 1999-10-14 | New Transducers Limited | Acoustic device relying on bending wave action |
WO1999060818A1 (de) * | 1998-05-15 | 1999-11-25 | Harman Audio Electronic Systems Gmbh | Plattenlautsprecher |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2003013186A1 (de) * | 2001-07-13 | 2003-02-13 | Harman Becker Automotive Systems Gmbh | Plattenlautsprecher |
US7187776B2 (en) | 2001-07-13 | 2007-03-06 | Harman Becker Automotive Systems Gmbh | Planar loudspeaker |
Also Published As
Publication number | Publication date |
---|---|
DE19922395C1 (de) | 2001-01-11 |
EP1052879A3 (de) | 2005-07-27 |
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