EP2866462A2 - Cover, in particular a loudspeaker cover - Google Patents

Cover, in particular a loudspeaker cover Download PDF

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Publication number
EP2866462A2
EP2866462A2 EP20140185707 EP14185707A EP2866462A2 EP 2866462 A2 EP2866462 A2 EP 2866462A2 EP 20140185707 EP20140185707 EP 20140185707 EP 14185707 A EP14185707 A EP 14185707A EP 2866462 A2 EP2866462 A2 EP 2866462A2
Authority
EP
European Patent Office
Prior art keywords
frame
region
cover
cover according
perforation holes
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.)
Granted
Application number
EP20140185707
Other languages
German (de)
French (fr)
Other versions
EP2866462B1 (en
EP2866462A3 (en
Inventor
Manfred Link
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Grammer Interior Components GmbH
Original Assignee
REUM Kunststoff- und Metalltechnik GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from DE202013104741.4U external-priority patent/DE202013104741U1/en
Priority claimed from DE202014102203.1U external-priority patent/DE202014102203U1/en
Application filed by REUM Kunststoff- und Metalltechnik GmbH filed Critical REUM Kunststoff- und Metalltechnik GmbH
Publication of EP2866462A2 publication Critical patent/EP2866462A2/en
Publication of EP2866462A3 publication Critical patent/EP2866462A3/en
Application granted granted Critical
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Classifications

    • 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
    • H04R1/023—Screens for loudspeakers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V33/00—Structural combinations of lighting devices with other articles, not otherwise provided for
    • F21V33/0004—Personal or domestic articles
    • F21V33/0052—Audio or video equipment, e.g. televisions, telephones, cameras or computers; Remote control devices therefor
    • F21V33/0056—Audio equipment, e.g. music instruments, radios or speakers
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2201/00—Details of transducers, loudspeakers or microphones covered by H04R1/00 but not provided for in any of its subgroups
    • H04R2201/02—Details casings, cabinets or mounting therein for transducers covered by H04R1/02 but not provided for in any of its subgroups
    • H04R2201/029—Manufacturing aspects of enclosures transducers

Definitions

  • the invention relates to a cover, in particular speaker cover, made of a metallic material.
  • Covers serve to protect the touch-sensitive membranes of loudspeakers, in particular in vehicles, against mechanical damage.
  • Such speaker covers made of a metallic material have a sound exit area, which is formed perforated. In this case, this sound outlet region may comprise perforation holes or a lattice structure or an expanded metal optic.
  • a frame of the cover is formed by a bead against the sound exit area and extends outside the plane of the sound exit area to attach the cover to the housing of the speaker.
  • the invention has for its object to provide a cover, in particular speaker cover, through which a visually appealing design of the cover, and a defined course of a frame can be produced.
  • a cover in which the frame comprises at least one partially formed hole segment.
  • This can allow excess material to flow or dodge into the perforation holes of the hole segments during the beading process or the forming, that is to say that the metallic, plate-shaped material is reduced by the perforation holes in the region of the at least one hole segment, so that a Flow allows and a wave formation of the frame is prevented.
  • increased dimensional accuracy for the cover can also be achieved due to a lack of reaction of the superfluous material on the sound exit area.
  • the edge region starting from the sound absorption region, comprises an unperforated segment region, on which the frame extends to the outer edge of the cover.
  • the introduced into the frame hole segments are not externally visible after forming and still allow a flow of excess metallic material into individual cavities of the perforation holes.
  • the non-perforated segment region surrounding the sound absorption region is designed as a narrow, strip-shaped region in order to form only a separation between the frame for beading and the sound exit region.
  • a further preferred embodiment of the cover provides that the perforation holes of the at least one hole segment are produced in the frame by a machining method, by which preferably the perforation holes of the sound exit area are made.
  • a machining method by which preferably the perforation holes of the sound exit area are made.
  • the perforation holes of the at least one hole segment in the frame as well as those of the sound exit area are preferably produced in one processing step.
  • the hole segments of the frame preferably have circular perforation holes, which in particular form a regular arrangement or lattice structure.
  • the perforation holes may have different geometries. These may be, for example, triangular, polygonal, slot-shaped, slot-shaped or have any free-form. All of these geometries can also be combined together to form a specific visual appearance.
  • the at least one hole segment of the frame extends at least in a region which extends from a plate-shaped material for introducing the perforation holes of the exit region and a subsequent deformation along a curved or curved course of the edge of the cover.
  • a plate-shaped material for introducing the perforation holes of the exit region and a subsequent deformation along a curved or curved course of the edge of the cover.
  • a further advantageous embodiment of the invention provides that a hole segment extending along the frame is formed.
  • a further preferred embodiment of the invention provides that between the sound exit area and the frame a folded edge is provided, which is equal to or greater than 90 °.
  • a folded edge is provided, which is equal to or greater than 90 °.
  • in the curved areas or corner areas can be prevented by upsetting excess material by a wave formation of the frame.
  • a preferred embodiment of the cover provides at least one light guide associated with an inner side of the frame.
  • a light guide can be positioned protected within the cover to illuminate an edge region of the cover.
  • the cover is illuminated indirectly or from the inside to the outside, since the light passes through the perforation holes to the outside. As a result, a particularly aesthetic design can be created.
  • At least one attachment portion may be provided, which positions the at least one light guide to the inside of the frame, so that it is associated with the perforation holes. This allows a simple and not visible from the outside attachment and fixation of the light guide to the perforation holes on the frame may be possible.
  • the attachment portion is formed such that it shields an installation space within the cover relative to the light guide.
  • the cover of the installation space in particular for a speaker, covered, said cover having in the region of the installation space sound absorption holes. So that a scattered light can not additionally escape via these sound absorption holes, the attachment section shields the light guide extending at least in sections along the frame of the cover.
  • the attachment portion is preferably positioned between a mounting bracket for the cover and an inside of the unperforated edge portion of the cover.
  • this attachment portion may be formed as a peripheral frame, on the one hand on the mounting bracket and on the other hand on an inner side of the edge region of the cover, in particular in the region of the non-perforated segment tape, is supported and / or rests.
  • the fixation can be done for example by clamping or by positive locking.
  • a further preferred embodiment of the cover provides the frame with a surrounding aperture, whereby at least in sections a recess surrounding the frame is formed between the frame and the panel.
  • the loudspeaker cover completely surrounding light band can be formed so that the cover, in particular loudspeaker cover, is visibly framed by light and stands out against an adjoining wall section, in particular an interior trim, or an instrument panel component.
  • the attachment section advantageously engages or is positioned and fixed by the cover within the frame and the non-perforated segment region of the cover.
  • the attachment portion and the aperture can be integrally formed, in particular as a plastic injection molded part, so that a simplified assembly is made possible due to the small handling steps.
  • a transparent, a translucent or a diffuse light-scattering body can be provided between the light guide and the inside of the frame.
  • a transparent, a translucent or a diffuse light-scattering body can be provided between the light guide and the inside of the frame.
  • FIG. 1 is a perspective view of a cover 11 according to the invention shown, which is designed as speaker cover for motor vehicles.
  • This cover 11 comprises a visible side 12, which comprises a sound exit region 14 and a non-perforated segment region 15 which surrounds at least in sections, preferably in its entirety, in the sound exit region 14.
  • Adjoining this non-perforated segment region 15 is a frame 17, which is produced by deformation, in particular flanging, and which extends in a plane deviating from that of the sound exit region 14. The fold can be done by an angle of 90 ° or greater out of the plane of the sound exit area 14 out.
  • the frame 17 is preferably formed completely encircling. This can also be formed in sections.
  • At an outer edge 19 of the frame 17 can occasionally tabs 20 may be provided which serve to fix a carrier on the frame 17 to secure the cover 11 on the housing of the speaker.
  • frame 17 at least one hole segment 21 is provided, which perforation holes 25 includes.
  • the hole segment 21 preferably extends in the corner region 22 or in the curved region 23, that is, in those regions in which the edge 19 has a curved or curved course.
  • at least one perforated segment 21 is provided in each corner region 22 and, provided that curved regions 23 are present, at least one perforated segment 21 is arranged in each curved region 23.
  • a perforated segment 21 can also extend along the entire frame, which extends between the edge 19 and the visible side 12 extends.
  • the sound exit region 14 also includes a plurality of perforation holes 25 that may have a selected structure or arrangement for a particular visual appearance.
  • FIG. 2 a schematic view is shown on a cover 11 in a partially processed state.
  • an outer contour of the cover 11 is punched out, whereby the edge 19 is formed with the tabs 20 arranged thereon.
  • the sound exit region 14 and the at least one hole segment 21 are introduced by introducing perforation holes 25 into the plate-shaped material by means of an etching process.
  • both occur simultaneously in an etching step.
  • successive etching steps for producing the perforation holes 25 may be provided.
  • a laser cutting process, stamped nippling or chemical sinking may be provided.
  • the hole segments 21 preferably extend along a curved or curved edge 19 until the edge 19 merges into a straight course.
  • the hole segment 21 extends slightly into the region of the frame 17 with a straight edge 19 inside.
  • the non-perforated segment region 15 is preferably formed between the hole segment 21 and the sound exit region 14.
  • FIG. 3 shows the section along the line II in FIG FIG. 1 shows.
  • the hole segment 21 extends, for example, from the edge 19 until immediately before the beginning of a curvature formed by the bead, so that the hole segment 21 from the visible side 12 not forth is visible.
  • the degree of deformation of the edge 19 with respect to the sound exit region 14 is determined by the receiving area of the housing of the speaker for fixing and fixing the cover 11th
  • the perforation holes 25 of the hole segments 21 are preferably circular and of equal size. These are advantageously evenly distributed over the area of the hole segment 21. Alternatively, it can be provided that the size of the perforation holes 25 and / or the shape of the perforation holes 25 deviate from one another and are adapted to the curve of the edge 19 or its radius and / or to the fold in the corner region 22 or the curved region 23.
  • FIG. 4 is a schematic sectional view taken along the line II according to FIG. 1 only shown from a corner region of the cover in an installed state.
  • a cover is used for example in a mounting bracket 30, which is preferably recessed by the height of the frame 17 of the cover 12 opposite thereto adjacent end portions of an inner panel or an instrument panel component.
  • a mounting bracket 30 is usually formed of plastic and has openings, not shown, in which, for example, in FIG. 1 Lugs 20 shown are used to fix the cover 11 to the mounting bracket 30.
  • Lugs 20 shown are used to fix the cover 11 to the mounting bracket 30.
  • a recess 33 is formed which is provided on the frame 17 at least in the region of the perforation holes 21 or hole segments 21.
  • the recess 33 completely surrounds the frame 17 of the cover 12.
  • An inner side of the frame 17 is associated with a light guide 36 which extends at least in sections along the perforation holes 21 within the frame.
  • a mounting portion 37 is provided, which may be L-shaped or U-shaped, for example, according to a first very simple embodiment to the Receive light guide 36 and to the perforation holes 25 to position and fix.
  • the attachment portion 27 extends between the mounting bracket 30 and an inner side 34 of the non-perforated segment tape 35, so that at the same time a shielding of the radiated light from the light guide 36 is given to an installation space 38 in which, for example, a speaker is positioned. As a result, no stray light can escape from the sound absorption region 14.
  • This attachment portion 27 can be formed as an annular member, which can be used as an insert in the cover 11.
  • the recess 33 is illuminated indirectly, so that the cover 11 is at least partially, advantageously fully surrounded by a band of light.
  • FIG. 5 is an alternative embodiment to FIG. 4 shown.
  • an aperture 41 is additionally provided between the frame 17 of the cover 12 and the insertion console 30.
  • This panel 41 may, for example, have an aesthetically pleasing surface facing the recess 33, such as, for example, a chromium coating or other metallic coating.
  • the fixing portion 37 and the bezel 41 are formed as a component, so again, easy mounting is provided. Incidentally, the comments on FIG. 4 ,
  • FIG. 6 is another alternative embodiment too FIG. 5 shown.
  • the fixing portion 37 and the diaphragm 41 are each formed as a separate component, which are associated with each other.
  • the diaphragm 41 has a receiving region 42, preferably with a circumferential shoulder 43, on which a body 44 can be positioned.
  • This body may be transparent, translucent or designed as a diffusely light-scattering body 44.
  • this body 44 is L-shaped, so that by the body 44 on the one hand and the attachment portion 37 on the other hand, a closed chamber for the Optical fiber 36 may be formed to receive the optical fiber protected therein.
  • the body 44 may be formed only strip-shaped to abut with distance or directly on the inside 34 of the perforation holes 25.
  • the light guide 36 may be formed in many ways, such as by an optical fiber, a bundle of optical fibers or as light or light bands, which are supplied via a non-illustrated interface with light or electricity.

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Details Of Audible-Bandwidth Transducers (AREA)

Abstract

Die Erfindung betritt eine Abdeckung, insbesondere Lautsprecherabdeckung, aus einem metallischen Material, mit einem perforierten Schallaustrittsbereich (14) und einem Randbereich (16), der zumindest einen Teil eines den Schallaustrittsbereich (14) umgebenden Rahmens (17) bildet, wobei der Rahmen (17) durch Umformen gegenüber dem Schallaustrittsbereich (14) gebildet ist und sich außerhalb der Ebene des Schallaustrittsbereiches (14) erstreckt, wobei der Rahmen (17) zumindest abschnittsweise ein Lochsegment (21) mit Perforationslöchern (25) umfasst. Gemäß einigen Ausführungsformen ist zumindest ein Lichtleiter (36) vorgesehen, der einer Innenseite (34) des Rahmens (17) zugeordnet ist.

Figure imgaf001
The invention enters a cover, in particular loudspeaker cover, made of a metallic material, with a perforated sound exit region (14) and an edge region (16) which forms at least part of a frame (17) surrounding the sound exit region (14), the frame (17 ) is formed by forming relative to the sound exit region (14) and extends outside the plane of the sound exit region (14), wherein the frame (17) at least partially comprises a perforated segment (21) with perforation holes (25). According to some embodiments, at least one light guide (36) is provided which is associated with an inner side (34) of the frame (17).
Figure imgaf001

Description

Die Erfindung betrifft eine Abdeckung, insbesondere Lautsprecherabdeckung, aus einem metallischen Material.The invention relates to a cover, in particular speaker cover, made of a metallic material.

Abdeckungen, insbesondere Lautsprecherabdeckungen, dienen dazu, um die berührungsempfindlichen Membranen von Lautsprechern, insbesondere in Fahrzeugen, gegen mechanische Beschädigungen zu schützen. Solche Lautsprecherabdeckungen aus einem metallischen Material weisen einen Schallaustrittsbereich auf, der perforiert ausgebildet ist. Dabei kann dieser Schallaustrittsbereich Perforationslöcher oder eine Gitterstruktur oder eine Streckmetalloptik umfassen. Ein Rahmen der Abdeckung wird durch eine Umbördelung gegenüber dem Schallaustrittsbereich gebildet und erstreckt sich außerhalb der Ebene des Schallaustrittsbereichs, um die Abdeckung am Gehäuse des Lautsprechers zu befestigen.Covers, in particular loudspeaker covers, serve to protect the touch-sensitive membranes of loudspeakers, in particular in vehicles, against mechanical damage. Such speaker covers made of a metallic material have a sound exit area, which is formed perforated. In this case, this sound outlet region may comprise perforation holes or a lattice structure or an expanded metal optic. A frame of the cover is formed by a bead against the sound exit area and extends outside the plane of the sound exit area to attach the cover to the housing of the speaker.

Die Herstellung solcher Abdeckungen, insbesondere das Umformen der Ränder zur Bildung eines Rahmens, weist den Nachteil auf, dass beim Umformen, insbesondere Umbördeln, das überschüssige Material zu einer Wellenbildung im Bereich des Rahmens führt, die auf die Sichtseite wirkt, so dass eine Beeinträchtigung in der Optik als auch bei einem Befestigen und Anbringen der Abdeckung am Gehäuse des Lautsprechers gegeben ist.The preparation of such covers, in particular the forming of the edges to form a frame, has the disadvantage that during forming, in particular beading, the excess material leads to a wave formation in the region of the frame, which acts on the visible side, so that an impairment in the optics as well as in attaching and attaching the cover to the housing of the speaker is given.

Der Erfindung liegt die Aufgabe zugrunde, eine Abdeckung, insbesondere Lautsprecherabdeckung, zu schaffen, durch welche eine optisch ansprechende Ausbildung der Abdeckung, sowie ein definierter Verlauf eines Rahmens herstellbar ist.The invention has for its object to provide a cover, in particular speaker cover, through which a visually appealing design of the cover, and a defined course of a frame can be produced.

Diese Aufgabe wird durch eine Abdeckung gelöst, bei der der Rahmen zumindest ein abschnittsweise ausgebildetes Lochsegment umfasst. Dadurch kann ermöglicht werden, dass überschüssiges Material während des Umbördelvorganges oder der Umformung in die Perforationslöcher der Lochsegmente fließen oder ausweichen kann, das heißt, dass durch die Perforationslöcher im Bereich des zumindest einen Lochsegmentes das metallische, plattenförmige Material reduziert wird, so dass ein Fließvorgang ermöglicht und eine Wellenbildung des Rahmens verhindert ist. Dadurch kann auch aufgrund einer fehlenden Rückwirkung des überflüssigen Materials auf den Schallaustrittsbereich eine erhöhte Formgenauigkeit für die Abdeckung erzielt werden.This object is achieved by a cover in which the frame comprises at least one partially formed hole segment. This can allow excess material to flow or dodge into the perforation holes of the hole segments during the beading process or the forming, that is to say that the metallic, plate-shaped material is reduced by the perforation holes in the region of the at least one hole segment, so that a Flow allows and a wave formation of the frame is prevented. As a result, increased dimensional accuracy for the cover can also be achieved due to a lack of reaction of the superfluous material on the sound exit area.

Bevorzugt ist vorgesehen, dass der Randbereich ausgehend von dem Schallabsorptionsbereich einen ungelochten Segmentbereich umfasst, an welchem sich der Rahmen bis zum äußeren Rand der Abdeckung erstreckt. Dadurch wird eine optisch ansprechende Ausgestaltung der Abdeckung geschaffen, so dass der Schallaustrittsbereich, sofern dies gewünscht ist, durch einen ungelochten Segmentbereich umgeben ist, der sich bis zum optisch äußeren Rand der Abdeckung erstreckt, das heißt, der Rahmen ist gegenüber dem optisch äußeren Rand der Abdeckung umgeformt und erstreckt sich gegenüber dem Sichtbereich der Abdeckung nach hinten. Dadurch sind die in den Rahmen eingebrachten Lochsegmente nach dem Umformen äußerlich nicht sichtbar und ermöglichen dennoch ein Fließen des überschüssigen metallischen Materials in einzelne Hohlräume der Perforationslöcher. Alternativ kann vorgesehen sein, dass der den Schallabsorptionsbereich umgebende ungelochte Segmentbereich als schmaler, streifenförmiger Bereich ausgebildet ist, um lediglich eine Trennung zwischen dem Rahmen zur Umbördelung und dem Schallaustrittsbereich zu bilden.It is preferably provided that the edge region, starting from the sound absorption region, comprises an unperforated segment region, on which the frame extends to the outer edge of the cover. This creates a visually appealing design of the cover, so that the sound exit region, if desired, is surrounded by an unperforated segment region, which extends to the optically outer edge of the cover, that is, the frame is opposite the optically outer edge of the Formed cover and extends towards the rear of the cover of the cover. As a result, the introduced into the frame hole segments are not externally visible after forming and still allow a flow of excess metallic material into individual cavities of the perforation holes. Alternatively it can be provided that the non-perforated segment region surrounding the sound absorption region is designed as a narrow, strip-shaped region in order to form only a separation between the frame for beading and the sound exit region.

Eine weitere bevorzugte Ausgestaltung der Abdeckung sieht vor, dass die Perforationslöcher des zumindest einen Lochsegmentes im Rahmen durch ein Bearbeitungsverfahren hergestellt sind, durch welches vorzugsweise die Perforationslöcher des Schallaustrittsbereichs hergestellt sind. Dadurch kann eine Vereinfachung und Kostenreduzierung in der Herstellung der Perforationslöcher im Rahmen als auch im Schallaustrittsbereich erzielt werden. Als Bearbeitungsverfahren ist insbesondere ein Ätzverfahren vorgesehen. Dadurch lassen sich sowohl verschiedene Strukturen als auch voneinander abweichende Perforationslöcher kostengünstig herstellen. Des Weiteren können eine Laserbearbeitung, insbesondere Laserschneiden oder Verdampfen durch Laserstrahlimpulse, als auch eine Stanznippelbearbeitung vorgesehen sein. Auch ist ein chemisches Senken möglich.A further preferred embodiment of the cover provides that the perforation holes of the at least one hole segment are produced in the frame by a machining method, by which preferably the perforation holes of the sound exit area are made. As a result, a simplification and cost reduction in the production of the perforation holes in the frame and in the sound exit area can be achieved. As a processing method, in particular, an etching method is provided. As a result, both different structures and deviating perforation holes can be produced inexpensively. Furthermore, a laser processing, in particular laser cutting or evaporation by laser beam pulses, as well as a stamped nipple processing provided be. Also, a chemical sinking is possible.

Bevorzugt werden die Perforationslöcher des zumindest einen Lochsegmentes im Rahmen als auch die des Schallaustrittsbereichs in einem Bearbeitungsschritt hergestellt.The perforation holes of the at least one hole segment in the frame as well as those of the sound exit area are preferably produced in one processing step.

Die Lochsegmente des Rahmens weisen bevorzugt kreisrunde Perforationslöcher auf, die insbesondere eine regelmäßige Anordnung oder Gitterstruktur bilden.The hole segments of the frame preferably have circular perforation holes, which in particular form a regular arrangement or lattice structure.

Alternativ kann auch in Abhängigkeit der Umformradien und des Umformgrades vorgesehen sein, dass einzelne Bereiche mit größeren Perforationslöchern als benachbarte Bereiche ausgebildet werden. Des Weiteren können die Perforationslöcher unterschiedliche Geometrien aufweisen. Diese können beispielsweise dreieckförmig, mehreckförmig, langlochförmig, schlitzförmig sein oder eine beliebige Freiform aufweisen. Alle diese Geometrien können auch miteinander kombiniert werden, um ein bestimmtes optisches Erscheinungsbild zu bilden.Alternatively, it can also be provided as a function of the forming radii and the degree of deformation that individual regions with larger perforation holes are formed as adjacent regions. Furthermore, the perforation holes may have different geometries. These may be, for example, triangular, polygonal, slot-shaped, slot-shaped or have any free-form. All of these geometries can also be combined together to form a specific visual appearance.

Das zumindest eine Lochsegment des Rahmens erstreckt sich zumindest in einem Bereich, der sich ausgehend von einem plattenförmigen Material zum Einbringen der Perforationslöcher des Austrittsbereiches und einer anschließenden Umformung entlang von einem kurvenförmigen oder gekrümmt ausgebildeten Verlauf des Randes der Abdeckung erstreckt. In diesem Bereich erfolgt insbesondere beim Umformen eine dreidimensionale Verformung des plattenförmigen Materials, durch welches quasi überschüssiges Material generiert wird, so dass durch die vorherige Bildung der Perforationslöcher eine Kompensation des aus der Umformung resultierenden überschüssigen Materials ermöglicht ist.The at least one hole segment of the frame extends at least in a region which extends from a plate-shaped material for introducing the perforation holes of the exit region and a subsequent deformation along a curved or curved course of the edge of the cover. In this area, in particular when forming a three-dimensional deformation of the plate-shaped material is generated by which quasi excess material, so that a compensation of the excess material resulting from the deformation is made possible by the previous formation of the perforation.

Eine weitere vorteilhafte Ausgestaltung der Erfindung sieht vor, dass ein sich entlang des Rahmens erstreckendes Lochsegment ausgebildet ist. Dadurch kann auch ein erleichtertes Umformen oder Umbördeln des Randes gegenüber der Sichtseite der Abdeckung gegeben sein, welche den Schallaustrittsbereich und einen diesen umgebenden ungelochten Segmentbereich umfasst.A further advantageous embodiment of the invention provides that a hole segment extending along the frame is formed. As a result, an easier reshaping or beading of the edge relative to the visible side of the cover can be provided, which comprises the sound exit region and a non-perforated segment region surrounding it.

Eine weitere bevorzugte Ausführungsform der Erfindung sieht vor, dass zwischen dem Schallaustrittsbereich und dem Rahmen eine Umkantung vorgesehen ist, die gleich oder größer 90° ist. Insbesondere in den gekrümmten Bereichen oder Eckbereichen kann dadurch eine Wellenbildung des Rahmens durch Stauchen von überflüssigem Material verhindert sein.A further preferred embodiment of the invention provides that between the sound exit area and the frame a folded edge is provided, which is equal to or greater than 90 °. In particular, in the curved areas or corner areas can be prevented by upsetting excess material by a wave formation of the frame.

Eine bevorzugte Ausführungsform der Abdeckung sieht einer Innenseite des Rahmens zugeordnet zumindest einen Lichtleiter vor. Dadurch kann innerhalb der Abdeckung ein Lichtleiter geschützt positioniert werden, um einen Randbereich der Abdeckung zu beleuchten. Die Abdeckung wird indirekt beziehungsweise von innen nach außen beleuchtet, da das Licht durch die Perforationslöcher nach außen tritt. Dadurch kann eine besonders ästhetische Gestaltung geschaffen werden.A preferred embodiment of the cover provides at least one light guide associated with an inner side of the frame. Thereby, a light guide can be positioned protected within the cover to illuminate an edge region of the cover. The cover is illuminated indirectly or from the inside to the outside, since the light passes through the perforation holes to the outside. As a result, a particularly aesthetic design can be created.

An der Innenseite des Rahmens der Abdeckung kann zumindest ein Befestigungsabschnitt vorgesehen sein, welcher den zumindest einen Lichtleiter zur Innenseite des Rahmens positioniert, so dass dieser den Perforationslöchern zugeordnet ist. Dadurch kann eine einfache und von außen nicht sichtbare Befestigung und Fixierung des Lichtleiters zu den Perforationslöchern am Rahmen ermöglicht sein.On the inside of the frame of the cover, at least one attachment portion may be provided, which positions the at least one light guide to the inside of the frame, so that it is associated with the perforation holes. This allows a simple and not visible from the outside attachment and fixation of the light guide to the perforation holes on the frame may be possible.

Vorteilhafterweise ist der Befestigungsabschnitt derart ausgebildet, dass dieser einen Einbauraum innerhalb der Abdeckung gegenüber dem Lichtleiter abschirmt. Durch die Abdeckung wird der Einbauraum, insbesondere für einen Lautsprecher, abgedeckt, wobei diese Abdeckung im Bereich des Einbauraumes Schallabsorptionslöcher aufweist. Damit über diese Schallabsorptionslöcher nicht zusätzlich ein Streulicht austreten kann, schirmt der Befestigungsabschnitt den sich zumindest abschnittsweise entlang des Rahmens der Abdeckung erstreckenden Lichtleiter ab.Advantageously, the attachment portion is formed such that it shields an installation space within the cover relative to the light guide. Through the cover of the installation space, in particular for a speaker, covered, said cover having in the region of the installation space sound absorption holes. So that a scattered light can not additionally escape via these sound absorption holes, the attachment section shields the light guide extending at least in sections along the frame of the cover.

Des Weiteren ist der Befestigungsabschnitt bevorzugt zwischen einer Einbaukonsole für die Abdeckung und einer Innenseite des ungelochten Randbereichs der Abdeckung positioniert. Dadurch kann in einfacher Weise eine Fixierung des Befestigungsabschnitts oder ein Einbau des Befestigungsabschnitts in einer definierten Position zum Rahmen erfolgen. Beispielsweise kann dieser Befestigungsabschnitt als umlaufender Rahmen ausgebildet sein, der sich einerseits an der Einbaukonsole und andererseits an einer Innenseite des Randbereiches der Abdeckung, insbesondere im Bereich des ungelochten Segmentbandes, abstützt und/oder anliegt. Die Fixierung kann beispielsweise durch Klemmung oder durch Formschluss erfolgen.Furthermore, the attachment portion is preferably positioned between a mounting bracket for the cover and an inside of the unperforated edge portion of the cover. As a result, fixation of the fastening section or installation of the fastening section in a defined position relative to the frame can be effected in a simple manner. For example, this attachment portion may be formed as a peripheral frame, on the one hand on the mounting bracket and on the other hand on an inner side of the edge region of the cover, in particular in the region of the non-perforated segment tape, is supported and / or rests. The fixation can be done for example by clamping or by positive locking.

Eine weitere bevorzugte Ausführungsform der Abdeckung sieht an dem Rahmen eine diesen umgebende Blende vor, wodurch zwischen dem Rahmen und der Blende zumindest abschnittsweise eine den Rahmen umgebende Vertiefung ausgebildet ist. Dadurch kann ein beispielsweise die Lautsprecherabdeckung vollständig umgebendes Lichtband gebildet werden, so dass die Abdeckung, insbesondere Lautsprecherabdeckung, sichtbar durch Licht eingerahmt ist und sich gegenüber einem daran angrenzenden Wandabschnitt, insbesondere einer Innenverkleidung, oder einem Instrumententafelbauteil abhebt. Der Befestigungsabschnitt greift vorteilhafterweise an der Blende an beziehungsweise wird durch diesen innerhalb des Rahmens und dem ungelochten Segmentbereich der Abdeckung positioniert und fixiert. Alternativ können der Befestigungsabschnitt und die Blende einstückig, insbesondere als Kunststoffspritzgussteil, ausgebildet sein, so dass eine vereinfachte Montage aufgrund der geringen Handhabungsschritte ermöglicht ist.A further preferred embodiment of the cover provides the frame with a surrounding aperture, whereby at least in sections a recess surrounding the frame is formed between the frame and the panel. As a result, for example, the loudspeaker cover completely surrounding light band can be formed so that the cover, in particular loudspeaker cover, is visibly framed by light and stands out against an adjoining wall section, in particular an interior trim, or an instrument panel component. The attachment section advantageously engages or is positioned and fixed by the cover within the frame and the non-perforated segment region of the cover. Alternatively, the attachment portion and the aperture can be integrally formed, in particular as a plastic injection molded part, so that a simplified assembly is made possible due to the small handling steps.

Zwischen dem Lichtleiter und der Innenseite des Rahmens kann ein transparenter, ein transluzenter oder ein diffus lichtstreuender Körper vorgesehen sein. Dadurch können nicht nur Farbeffekte, sondern auch bezüglich der Ausstrahlungsintensität entlang des Rahmens unterschiedliche Effekte erzielt werden.Between the light guide and the inside of the frame, a transparent, a translucent or a diffuse light-scattering body can be provided. As a result, not only color effects but also with respect to the emission intensity along the frame, different effects can be achieved.

Die Erfindung sowie weitere vorteilhafte Ausführungsformen und Weiterbildungen derselben werden im Folgenden anhand der in den Zeichnungen dargestellten Beispiele näher beschrieben und erläutert. Die der Beschreibung und den Zeichnungen zu entnehmenden Merkmale können einzeln für sich oder zu mehreren in beliebiger Kombination erfindungsgemäß angewandt werden. Es zeigen:

  • Figur 1 eine perspektivische Ansicht auf eine erfindungsgemäße Abdeckung,
  • Figur 2 eine schematische Ansicht auf eine teilweise bearbeitete Abdeckung vor einer Umformung,
  • Figur 3 eine schematische Ansicht entlang der Linie A-A in Figur 1,
  • Figur 4 eine schematische Schnittansicht eines Eckbereiches der Abdeckung mit einem Lichtleiter,
  • Figur 5 eine schematische Schnittansicht einer alternativen Ausführungsform eines Eckbereiches der Abdeckung mit einem Lichtleiter,
  • Figur 6 eine schematische Schnittansicht einer weiteren alternativen Ausführungsform des Eckbereichs der Abdeckung mit einem Lichtleiter.
The invention and further advantageous embodiments and developments thereof are described in more detail below with reference to the examples shown in the drawings and explained. The features to be taken from the description and the drawings can be applied individually according to the invention individually or in combination in any combination. Show it:
  • FIG. 1 a perspective view of a cover according to the invention,
  • FIG. 2 a schematic view of a partially processed Cover before forming,
  • FIG. 3 a schematic view along the line AA in FIG. 1 .
  • FIG. 4 a schematic sectional view of a corner region of the cover with a light guide,
  • FIG. 5 a schematic sectional view of an alternative embodiment of a corner region of the cover with a light guide,
  • FIG. 6 a schematic sectional view of another alternative embodiment of the corner region of the cover with a light guide.

In Figur 1 ist eine perspektivische Ansicht einer erfindungsgemäßen Abdeckung 11 dargestellt, welche als Lautsprecherabdeckung für Kraftfahrzeuge ausgebildet ist. Diese Abdeckung 11 umfasst eine Sichtseite 12, welche einen Schallaustrittsbereich 14 sowie einen im Schallaustrittsbereich 14 zumindest abschnittsweise, vorzugsweise vollumfänglich, umgebenden ungelochten Segmentbereich 15 umfasst. An diesen ungelochten Segmentbereich 15 schließt sich ein Rahmen 17 an, welcher durch Umformung, insbesondere Umbördelung, hergestellt ist und sich in einer Ebene abweichend von der des Schallaustrittsbereiches 14 erstreckt. Die Umkantung kann dabei um einen Winkel von 90° oder größer aus der Ebene des Schallaustrittsbereichs 14 heraus erfolgen. Der Rahmen 17 ist vorzugsweise vollständig umlaufend ausgebildet. Dieser kann auch abschnittsweise ausgebildet sein. An einem äußeren Rand 19 des Rahmens 17 können vereinzelt Laschen 20 vorgesehen sein, die zur Fixierung eines Trägers am Rahmen 17 dienen, um die Abdeckung 11 am Gehäuse des Lautsprechers zu befestigen. Im Rahmen 17 ist zumindest ein Lochsegment 21 vorgesehen, welches Perforationslöcher 25 umfasst. Das Lochsegment 21 erstreckt sich vorzugsweise im Eckbereich 22 oder im gekrümmten Bereich 23, das heißt, in solchen Bereichen, in denen der Rand 19 einen gekrümmten oder kurvenförmigen Verlauf aufweist. Vorzugsweise ist in jedem Eckbereich 22 zumindest ein Lochsegment 21 und sofern gekrümmte Bereiche 23 vorhanden sind, in jedem gekrümmten Bereich 23 zumindest ein Lochsegment 21 angeordnet. Alternativ kann sich auch ein Lochsegment 21 entlang des gesamten Rahmens erstrecken, welcher sich zwischen dem Rand 19 und der Sichtseite 12 erstreckt.In FIG. 1 is a perspective view of a cover 11 according to the invention shown, which is designed as speaker cover for motor vehicles. This cover 11 comprises a visible side 12, which comprises a sound exit region 14 and a non-perforated segment region 15 which surrounds at least in sections, preferably in its entirety, in the sound exit region 14. Adjoining this non-perforated segment region 15 is a frame 17, which is produced by deformation, in particular flanging, and which extends in a plane deviating from that of the sound exit region 14. The fold can be done by an angle of 90 ° or greater out of the plane of the sound exit area 14 out. The frame 17 is preferably formed completely encircling. This can also be formed in sections. At an outer edge 19 of the frame 17 can occasionally tabs 20 may be provided which serve to fix a carrier on the frame 17 to secure the cover 11 on the housing of the speaker. In frame 17 at least one hole segment 21 is provided, which perforation holes 25 includes. The hole segment 21 preferably extends in the corner region 22 or in the curved region 23, that is, in those regions in which the edge 19 has a curved or curved course. Preferably, at least one perforated segment 21 is provided in each corner region 22 and, provided that curved regions 23 are present, at least one perforated segment 21 is arranged in each curved region 23. Alternatively, a perforated segment 21 can also extend along the entire frame, which extends between the edge 19 and the visible side 12 extends.

Der Schallaustrittsbereich 14 umfasst ebenfalls eine Vielzahl von Perforationslöchern 25, die eine ausgewählte Struktur oder Anordnung für ein bestimmtes optisches Erscheinungsbild aufweisen können. Die Perforationslöcher 25, die vorzugsweise rund und mit gleichem oder unterschiedlichem Durchmesser ausgebildet sind, können alternativ auch eine Streckmetalloptik oder dergleichen umfassen.The sound exit region 14 also includes a plurality of perforation holes 25 that may have a selected structure or arrangement for a particular visual appearance. The perforation holes 25, which are preferably round and of the same or different diameter, may alternatively comprise an expanded metal optic or the like.

In Figur 2 ist eine schematische Ansicht auf eine Abdeckung 11 in einem teilweise bearbeiteten Zustand dargestellt. Aus einem plattenförmigen, metallischen Material ist eine äußere Kontur der Abdeckung 11 ausgestanzt, wodurch der Rand 19 mit den daran angeordneten Laschen 20 gebildet ist. Anschließend wird der Schallaustrittsbereich 14 und das zumindest eine Lochsegment 21 durch Einbringen von Perforationslöchern 25 in das plattenförmige Material mittels eines Ätzverfahrens eingebracht. Bevorzugt erfolgt beides gleichzeitig in einem Ätzschritt. Alternativ können auch aufeinanderfolgende Ätzschritte zur Herstellung der Perforationslöcher 25 vorgesehen sein. Alternativ kann auch ein Laserschneidverfahren, Stanznippelverfahren oder ein chemisches Senken vorgesehen sein.In FIG. 2 a schematic view is shown on a cover 11 in a partially processed state. From a plate-shaped, metallic material, an outer contour of the cover 11 is punched out, whereby the edge 19 is formed with the tabs 20 arranged thereon. Subsequently, the sound exit region 14 and the at least one hole segment 21 are introduced by introducing perforation holes 25 into the plate-shaped material by means of an etching process. Preferably, both occur simultaneously in an etching step. Alternatively, successive etching steps for producing the perforation holes 25 may be provided. Alternatively, a laser cutting process, stamped nippling or chemical sinking may be provided.

Die Lochsegmente 21 erstrecken sich vorzugsweise entlang eines gekrümmten oder kurvenförmig ausgebildeten Randes 19, bis der Rand 19 in einen geradlinigen Verlauf übergeht. Vorzugsweise erstreckt sich das Lochsegment 21 geringfügig in den Bereich des Rahmens 17 mit einem geradlinigen Rand 19 hinein. Zum inneren Bereich der Abdeckung 11 ist vorzugsweise zwischen dem Lochsegment 21 und dem Schallaustrittsbereich 14 der ungelochte Segmentbereich 15 ausgebildet.The hole segments 21 preferably extend along a curved or curved edge 19 until the edge 19 merges into a straight course. Preferably, the hole segment 21 extends slightly into the region of the frame 17 with a straight edge 19 inside. To the inner region of the cover 11, the non-perforated segment region 15 is preferably formed between the hole segment 21 and the sound exit region 14.

Ausgehend von diesem bearbeiteten plattenförmigen Material erfolgt eine Umformung bzw. Umbördelung des Randes 19 zur Bildung des Rahmens 17. Dies ist in einer Schnittdarstellung in Figur 3 dargestellt, welche den Schnitt entlang der Linie I-I in Figur 1 zeigt.Starting from this processed plate-shaped material, a deformation or flanging of the edge 19 takes place to form the frame 17. This is in a sectional view in FIG FIG. 3 which shows the section along the line II in FIG FIG. 1 shows.

Das Lochsegment 21 erstreckt sich beispielsweise vom Rand 19 bis unmittelbar vor Beginn einer Krümmung, die durch die Umbördelung gebildet wird, so dass das Lochsegment 21 von der Sichtseite 12 her nicht sichtbar ist. Der Umformgrad des Randes 19 gegenüber dem Schallaustrittsbereich 14 bestimmt sich nach dem Aufnahmebereich des Gehäuses des Lautsprechers zur Befestigung und Fixierung der Abdeckung 11.The hole segment 21 extends, for example, from the edge 19 until immediately before the beginning of a curvature formed by the bead, so that the hole segment 21 from the visible side 12 not forth is visible. The degree of deformation of the edge 19 with respect to the sound exit region 14 is determined by the receiving area of the housing of the speaker for fixing and fixing the cover 11th

Die Perforationslöcher 25 der Lochsegmente 21 sind bevorzugt kreisrund und gleich groß ausgebildet. Diese sind vorteilhafterweise gleichmäßig über den Bereich des Lochsegmentes 21 verteilt. Alternativ kann vorgesehen sein, dass die Größe der Perforationslöcher 25 und/oder die Form der Perforationslöcher 25 voneinander abweichen und an den Kurvenverlauf des Randes 19 bzw. dessen Radius und/oder an die Abkantung in dem Eckbereich 22 oder dem gekrümmten Bereich 23 angepasst ist.The perforation holes 25 of the hole segments 21 are preferably circular and of equal size. These are advantageously evenly distributed over the area of the hole segment 21. Alternatively, it can be provided that the size of the perforation holes 25 and / or the shape of the perforation holes 25 deviate from one another and are adapted to the curve of the edge 19 or its radius and / or to the fold in the corner region 22 or the curved region 23.

In Figur 4 ist eine schematische Schnittansicht entlang der Linie I-I gemäß Figur 1 nur von einem Eckbereich der Abdeckung in einen Einbauzustand dargestellt. Eine solche Abdeckung wird beispielsweise in eine Einbaukonsole 30 eingesetzt, welche bevorzugt um die Höhe des Rahmens 17 der Abdeckung 12 gegenüber daran angrenzenden Endabschnitten einer Innenverkleidung oder eines Instrumententafelbauteils vertieft ist. Eine solche Einbaukonsole 30 ist zumeist aus Kunststoff ausgebildet und weist nicht näher dargestellte Öffnungen auf, in denen beispielsweise die in Figur 1 dargestellten Laschen 20 einsetzbar sind, um die Abdeckung 11 zur Einbaukonsole 30 zu fixieren. Zwischen der Einbaukonsole 30 und einer Außenseite 32 des Rahmens 17 der Abdeckung 12 ist eine Vertiefung 33 gebildet, welche zumindest im Bereich der Perforationslöcher 21 beziehungsweise Lochsegmente 21 am Rahmen 17 vorgesehen ist. Bevorzugt umgibt die Vertiefung 33 vollständig den Rahmen 17 der Abdeckung 12. Einer Innenseite des Rahmens 17 ist ein Lichtleiter 36 zugeordnet, der sich zumindest abschnittsweise entlang den Perforationslöchern 21 innerhalb des Rahmens erstreckt. Zur Positionierung des Lichtleiters 36 zur Innenseite 34 des Rahmens 17 ist ein Befestigungsabschnitt 37 vorgesehen, der beispielsweise gemäß einer ersten sehr einfachen Ausführungsform L- oder U-förmig ausgebildet sein kann, um den Lichtleiter 36 aufzunehmen und zu den Perforationslöchern 25 zu positionieren und fixieren. Bevorzugt erstreckt sich der Befestigungsabschnitt 27 zwischen der Einbaukonsole 30 und einer Innenseite 34 des ungelochten Segmentbandes 35, so dass gleichzeitig auch eine Abschirmung des vom Lichtleiter 36 ausgestrahlten Lichts gegenüber einem Einbauraum 38 gegeben ist, in dem beispielsweise ein Lautsprecher positioniert wird. Dadurch kann kein Streulicht aus dem Schallabsorptionsbereich 14 austreten. Dieser Befestigungsabschnitt 27 kann als ein ringförmiges Element ausgebildet werden, welches als Einlegeteil in die Abdeckung 11 eingesetzt werden kann.In FIG. 4 is a schematic sectional view taken along the line II according to FIG. 1 only shown from a corner region of the cover in an installed state. Such a cover is used for example in a mounting bracket 30, which is preferably recessed by the height of the frame 17 of the cover 12 opposite thereto adjacent end portions of an inner panel or an instrument panel component. Such a mounting bracket 30 is usually formed of plastic and has openings, not shown, in which, for example, in FIG. 1 Lugs 20 shown are used to fix the cover 11 to the mounting bracket 30. Between the mounting bracket 30 and an outer side 32 of the frame 17 of the cover 12, a recess 33 is formed which is provided on the frame 17 at least in the region of the perforation holes 21 or hole segments 21. Preferably, the recess 33 completely surrounds the frame 17 of the cover 12. An inner side of the frame 17 is associated with a light guide 36 which extends at least in sections along the perforation holes 21 within the frame. For positioning the light guide 36 to the inside 34 of the frame 17, a mounting portion 37 is provided, which may be L-shaped or U-shaped, for example, according to a first very simple embodiment to the Receive light guide 36 and to the perforation holes 25 to position and fix. Preferably, the attachment portion 27 extends between the mounting bracket 30 and an inner side 34 of the non-perforated segment tape 35, so that at the same time a shielding of the radiated light from the light guide 36 is given to an installation space 38 in which, for example, a speaker is positioned. As a result, no stray light can escape from the sound absorption region 14. This attachment portion 27 can be formed as an annular member, which can be used as an insert in the cover 11.

Durch eine solche Anordnung wird die Vertiefung 33 indirekt beleuchtet, so dass die Abdeckung 11 zumindest abschnittsweise, vorteilhafterweise vollumfänglich, von einem Lichtband umgeben ist.By such an arrangement, the recess 33 is illuminated indirectly, so that the cover 11 is at least partially, advantageously fully surrounded by a band of light.

In Figur 5 ist eine alternative Ausführungsform zu Figur 4 dargestellt. Bei dieser Ausführungsform ist ergänzend zwischen dem Rahmen 17 der Abdeckung 12 und der Einlegekonsole 30 eine Blende 41 vorgesehen. Diese Blende 41 kann beispielsweise eine zur Vertiefung 33 weisende ästhetisch optisch ansprechende Oberfläche aufweisen, wie beispielsweise eine Chrombeschichtung oder sonstige metallische Beschichtung. Bei dieser Ausführungsform sind des Weiteren der Befestigungsabschnitt 37 und die Blende 41 als ein Bauteil ausgebildet, so dass wiederum eine einfache Montage gegeben ist. Im Übrigen gelten die Ausführungen zu Figur 4.In FIG. 5 is an alternative embodiment to FIG. 4 shown. In this embodiment, an aperture 41 is additionally provided between the frame 17 of the cover 12 and the insertion console 30. This panel 41 may, for example, have an aesthetically pleasing surface facing the recess 33, such as, for example, a chromium coating or other metallic coating. Further, in this embodiment, the fixing portion 37 and the bezel 41 are formed as a component, so again, easy mounting is provided. Incidentally, the comments on FIG. 4 ,

In Figur 6 ist eine weitere alternative Ausführungsform zu Figur 5 dargestellt. Bei dieser Ausführungsform sind der Befestigungsabschnitt 37 und die Blende 41 jeweils als getrenntes Bauteil ausgebildet, welche einander zugeordnet sind. Ergänzend weist die Blende 41 einen Aufnahmebereich 42, vorzugsweise mit einer umlaufenden Schulter 43, auf, an welcher ein Körper 44 positionierbar ist. Dieser Körper kann transparent, transluzent oder als diffus lichtstreuender Körper 44 ausgebildet sein. Im Ausführungsbeispiel ist dieser Körper 44 L-förmig ausgebildet, so dass durch den Körper 44 einerseits und dem Befestigungsabschnitt 37 andererseits eine geschlossene Kammer für den Lichtleiter 36 gebildet werden kann, um den Lichtleiter darin geschützt aufzunehmen. Alternativ kann der Körper 44 auch nur streifenförmig ausgebildet sein, um mit Abstand oder direkt an der Innenseite 34 der Perforationslöcher 25 anzuliegen.In FIG. 6 is another alternative embodiment too FIG. 5 shown. In this embodiment, the fixing portion 37 and the diaphragm 41 are each formed as a separate component, which are associated with each other. In addition, the diaphragm 41 has a receiving region 42, preferably with a circumferential shoulder 43, on which a body 44 can be positioned. This body may be transparent, translucent or designed as a diffusely light-scattering body 44. In the exemplary embodiment, this body 44 is L-shaped, so that by the body 44 on the one hand and the attachment portion 37 on the other hand, a closed chamber for the Optical fiber 36 may be formed to receive the optical fiber protected therein. Alternatively, the body 44 may be formed only strip-shaped to abut with distance or directly on the inside 34 of the perforation holes 25.

Der Lichtleiter 36 kann vielfältig ausgebildet sein, wie beispielsweise durch eine Lichtfaser, einem Bündel von Lichtfasern oder als Licht- oder Leuchtbänder, welche über eine nicht näher dargestellte Schnittstelle mit Licht oder Strom versorgt werden.The light guide 36 may be formed in many ways, such as by an optical fiber, a bundle of optical fibers or as light or light bands, which are supplied via a non-illustrated interface with light or electricity.

Claims (15)

Abdeckung, insbesondere Lautsprecherabdeckung, aus einem metallischen Material, mit einem perforierten Schallaustrittsbereich (14) und einem Randbereich (16), der zumindest einen Teil eines den Schallaustrittsbereich (14) umgebenden Rahmens (17) bildet, wobei der Rahmen (17) durch Umformen gegenüber dem Schallaustrittsbereich (14) gebildet ist und sich außerhalb der Ebene des Schallaustrittsbereiches (14) erstreckt, dadurch gekennzeichnet, dass der Rahmen (17) zumindest abschnittsweise ein Lochsegment (21) mit Perforationslöchern (25) umfasst.Cover, in particular loudspeaker cover, of a metallic material, having a perforated sound exit region (14) and an edge region (16) which forms at least part of a frame (17) surrounding the sound exit region (14), the frame (17) being opposed by deformation the sound exit region (14) is formed and extends outside the plane of the sound exit region (14), characterized in that the frame (17) at least partially a perforated segment (21) with perforation holes (25). Abdeckung nach Anspruch 1, dadurch gekennzeichnet, dass der Randbereich (16) ausgehend von dem Schallabsorptionsbereich (14) einen ungelochten Segmentbereich (15) umfasst, der mit dem Schallabsorptionsbereich (14) eine Sichtseite (12) bildet und dass der Randbereich (16) des Weiteren den Rahmen (17) umfasst, der sich an den ungelochten Segmentbereich (15) anschließt und bis zum äußeren Rand (19) der Abdeckung (11) erstreckt.Cover according to claim 1, characterized in that the edge region (16), starting from the sound absorption region (14), comprises an unperforated segment region (15) forming a visible side (12) with the sound absorption region (14) and the edge region (16) of the sound absorption region (14) Further comprising the frame (17), which adjoins the non-perforated segment region (15) and extends to the outer edge (19) of the cover (11). Abdeckung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Perforationslöcher (25) des zumindest einen Lochsegments (21) im Rahmen (17) durch ein Bearbeitungsverfahren, insbesondere Ätzen, Lasern oder Stanznippeln, hergestellt sind und vorzugsweise die Perforationslöcher (25) des Schallaustrittsbereichs (14) durch dasselbe Bearbeitungsverfahren hergestellt sind.Cover according to one of the preceding claims, characterized in that the perforation holes (25) of the at least one hole segment (21) are produced in the frame (17) by a machining process, in particular etching, lasers or punching nipples, and preferably the perforation holes (25) of the sound exit region (14) are made by the same machining method. Abdeckung nach Anspruch 3, dadurch gekennzeichnet, dass die Perforationslöcher (25) des Lochsegments (21) im Rahmen (17) im selben Arbeitsschritt wie die Perforationslöcher (25) des Schallaustrittsbereichs (14) hergestellt sind.Cover according to claim 3, characterized in that the perforation holes (25) of the hole segment (21) in the frame (17) in the same step as the perforation holes (25) of the sound outlet area (14) are made. Abdeckung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Lochsegmente (21) des Rahmens (17) aus kreisrunden, ovalen, mehreckigen, schlitzförmigen oder langlochförmigen Perforationslöchern (25) bestehen, die vorzugsweise eine regelmäßige Gitterstruktur bilden.Cover according to one of the preceding claims, characterized in that the hole segments (21) of the frame (17) consist of circular, oval, polygonal, slot-shaped or slot-shaped perforation holes (25) which preferably form a regular lattice structure. Abdeckung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das zumindest eine Lochsegment (21) des Rahmens (17) sich zumindest in einem Eckbereich (22) oder gekrümmten Bereich (23) erstreckt, der sich ausgehend von einem plattenförmigen Material zum Einbringen der Perforationslöcher (25) und einer anschließenden Umformung entlang von einem kurvenförmig oder gekrümmt ausgebildeten Rand (19) erstreckt.Cover according to one of the preceding claims, characterized in that the at least one perforated segment (21) of the frame (17) extends at least in a corner region (22) or curved region (23). extends, which extends from a plate-shaped material for introducing the perforation holes (25) and a subsequent deformation along a curved or curved edge (19). Abdeckung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass ein sich vollständig entlang des Randes (19) erstreckendes Lochsegment (21) im Rahmen (17) ausgebildet ist.Cover according to one of the preceding claims, characterized in that a hole segment (21) extending completely along the edge (19) is formed in the frame (17). Abdeckung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass zwischen dem Schallaustrittsbereich (14) und dem Rahmen (17) eine Umkantung vorgesehen ist, die gleich oder größer 90° ist.Cover according to one of the preceding claims, characterized in that between the sound exit region (14) and the frame (17) is provided a folded edge, which is equal to or greater than 90 °. Abdeckung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass einer Innenseite (34) des Rahmens (17) zugeordnet zumindest ein Lichtleiter (36) vorgesehen ist.Cover according to one of the preceding claims, characterized in that an inner side (34) of the frame (17) associated with at least one light guide (36) is provided. Abdeckung nach Anspruch 9, dadurch gekennzeichnet, dass an der Innenseite (34) des Rahmens (17) zumindest ein Befestigungsabschnitt (37) vorgesehen ist, welcher den zumindest einen Lichtleiter (36) zur Innenseite (34) des Rahmens (17) positioniert.Cover according to claim 9, characterized in that on the inside (34) of the frame (17) at least one fastening portion (37) is provided, which positions the at least one light guide (36) to the inside (34) of the frame (17). Abdeckung nach Anspruch 10, dadurch gekennzeichnet, dass der Befestigungsabschnitt (37) einen Einbauraum (38), insbesondere für einen Lautsprecher, gegenüber dem zumindest einen Lichtleiter (36) abschirmt.Cover according to claim 10, characterized in that the fixing portion (37) shields an installation space (38), in particular for a loudspeaker, with respect to the at least one light guide (36). Abdeckung nach Anspruch 10 oder 11, dadurch gekennzeichnet, dass der Befestigungsabschnitt (37) zwischen einer Einbaukonsole (30) für die Abdeckung (12) und einer Innenseite (34) eines Randbereiches (16) der Abdeckung (12) angeordnet ist.Cover according to claim 10 or 11, characterized in that the fixing portion (37) between a mounting bracket (30) for the cover (12) and an inner side (34) of an edge region (16) of the cover (12) is arranged. Abdeckung nach einem der Ansprüche 9 bis 12, dadurch gekennzeichnet, dass eine den Rahmen (17) umgebende Blende (41) vorgesehen ist, an welcher der Rahmen (17), insbesondere ein stirnseitiges Ende des Rahmens (17), befestigbar ist und zwischen dem Rahmen (17) und der Blende (41) zumindest abschnittsweise eine einen Rahmen (17) umgebende Vertiefung (33) ausgebildet ist.Cover according to one of claims 9 to 12, characterized in that a frame (17) surrounding aperture (41) is provided, on which the frame (17), in particular a front end of the frame (17), can be fastened and between the Frame (17) and the diaphragm (41) at least partially a frame (17) surrounding recess (33) is formed. Abdeckung nach Anspruch 10 bis 13, dadurch gekennzeichnet, dass der Befestigungsabschnitt (37) an der Blende (41) angreift oder einteilig mit der Blende (41) ausgebildet ist.Cover according to claim 10 to 13, characterized in that the fastening portion (37) acts on the diaphragm (41) or is formed integrally with the diaphragm (41). Abdeckung nach einem der Ansprüche 9 bis 14, dadurch gekennzeichnet, dass zwischen dem Lichtleiter (36) und der Innenseite (34) des Rahmens (17) ein transparenter, transluzenter oder diffus lichtstreuender Körper (44) vorgesehen ist.Cover according to one of Claims 9 to 14, characterized in that a transparent, translucent or diffusely light-scattering body (44) is provided between the light guide (36) and the inner side (34) of the frame (17).
EP14185707.8A 2013-10-22 2014-09-22 Cover, in particular a loudspeaker cover Active EP2866462B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE202013104741.4U DE202013104741U1 (en) 2013-10-22 2013-10-22 Cover, in particular speaker cover
DE202014102203.1U DE202014102203U1 (en) 2014-05-12 2014-05-12 Cover, in particular speaker cover

Publications (3)

Publication Number Publication Date
EP2866462A2 true EP2866462A2 (en) 2015-04-29
EP2866462A3 EP2866462A3 (en) 2015-08-19
EP2866462B1 EP2866462B1 (en) 2017-09-06

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ID=51570408

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Application Number Title Priority Date Filing Date
EP14185707.8A Active EP2866462B1 (en) 2013-10-22 2014-09-22 Cover, in particular a loudspeaker cover

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Cited By (3)

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Publication number Priority date Publication date Assignee Title
US20180098168A1 (en) * 2016-09-30 2018-04-05 Sonos, Inc. Seamlessly Joining Sides of a Speaker Enclosure
EP3640369A1 (en) * 2018-10-18 2020-04-22 GRAMMER Interior Components GmbH Interior fitting part of a vehicle with a metallic surface element and method for producing the same
DE102022121691A1 (en) 2022-08-26 2024-02-29 Grammer Aktiengesellschaft Cover component and method for producing it

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JPS5936497A (en) * 1982-08-23 1984-02-28 Mitsuyoshi Sangyo Kk Method for fitting a metallic grill to plastic grill frame mounted on front surface of sound equipment
JPS6163192A (en) * 1984-09-04 1986-04-01 Sanyo Electric Co Ltd Attaching method of punching net
US4974698A (en) * 1989-10-11 1990-12-04 Oakwood Metal Fabricating Company Speaker cover grille installation
JPH06327080A (en) * 1993-05-14 1994-11-25 Alpine Electron Inc Cover for audio equipment
JPH09212107A (en) * 1996-02-05 1997-08-15 Aiwa Co Ltd Light emitting device and acoustic device using the same
JP2004247816A (en) * 2003-02-12 2004-09-02 Matsushita Electric Ind Co Ltd Speaker
DE202006015232U1 (en) * 2006-10-02 2006-12-28 Lear Corporation Gmbh & Co. Kg Cover device for loudspeaker, especially in motor vehicle, has light source inserted in recess in frame
DE102012005706B4 (en) * 2012-03-20 2021-08-19 Daimler Ag Loudspeaker arrangement, in particular for a vehicle

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Title
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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20180098168A1 (en) * 2016-09-30 2018-04-05 Sonos, Inc. Seamlessly Joining Sides of a Speaker Enclosure
US10667068B2 (en) * 2016-09-30 2020-05-26 Sonos, Inc. Seamlessly joining sides of a speaker enclosure
EP3640369A1 (en) * 2018-10-18 2020-04-22 GRAMMER Interior Components GmbH Interior fitting part of a vehicle with a metallic surface element and method for producing the same
DE102022121691A1 (en) 2022-08-26 2024-02-29 Grammer Aktiengesellschaft Cover component and method for producing it

Also Published As

Publication number Publication date
EP2866462B1 (en) 2017-09-06
EP2866462A3 (en) 2015-08-19

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