EP0503611B1 - Doubly concave high-pitch loudspeakers - Google Patents
Doubly concave high-pitch loudspeakers Download PDFInfo
- Publication number
- EP0503611B1 EP0503611B1 EP92104228A EP92104228A EP0503611B1 EP 0503611 B1 EP0503611 B1 EP 0503611B1 EP 92104228 A EP92104228 A EP 92104228A EP 92104228 A EP92104228 A EP 92104228A EP 0503611 B1 EP0503611 B1 EP 0503611B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- angle
- recess
- frequency
- loudspeaker
- loudspeaker arrangement
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Classifications
-
- 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
- H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
- H04R1/32—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only
- H04R1/40—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by combining a number of identical transducers
- H04R1/403—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by combining a number of identical transducers loud-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
- H04R1/025—Arrangements for fixing loudspeaker transducers, e.g. in a box, furniture
Definitions
- the invention relates to a loudspeaker arrangement, in particular a tweeter arrangement as used in motor vehicles.
- the frequency band to be transmitted is not equally transmitted by all loudspeakers. Rather, it is common to emit, for example, the high-frequency tones, the tones of the middle frequencies and the low tones through different loudspeakers adapted to the respective transmission purpose. So that the high-frequency tones from the tweeters and the low tones from the woofers are emitted, so-called crossovers are interposed between the amplifier output and the speaker. How these crossovers work does not need any further explanation given the fluency of these components.
- the coordination of a box concept can be described as relatively easy if it is necessary to design this box concept for a large, geometrically very regular room - hereinafter referred to as the room concept.
- the optimization process is considerably more difficult than the mere optimization process in a room concept. This is mainly because the size of the interior of a motor vehicle is quite small and, moreover, the presence of seats and upholstery exerts a strong damping effect. Because of the limited space available in motor vehicles for installing loudspeakers or entire loudspeaker boxes, in many cases the loudspeakers, which are to take over the transmission of a stereo channel, for example, are not arranged in close proximity to one another, but rather at different installation locations in the vehicle. As already indicated with the room concepts, the vehicle sound system is also optimized through the use of equalizers, although this type of optimization does not achieve the sound quality that prevails with so-called room concepts.
- the invention is therefore based on the object of specifying a loudspeaker arrangement which does not have the above disadvantages and which, at least for the high-frequency range, shows an improved spatial sound reproduction which is also largely independent of the seating position in the vehicle.
- the good sound reproduction properties achieved by means of the inventive loudspeaker arrangement affect the fact that when the loudspeaker arrangement according to the invention is installed in the left and right half of the dashboard of a motor vehicle, the radiation of the sound is not broken through the windshield of the motor vehicle , but is directed directly to the driver and front passenger position.
- the extensive independence from the seating position is due to the fact that the angular arrangement of the two tweeters to each other and the approximately circular curvature of the housing part ensures that the sound in the vehicle is largely standardized in the high-frequency range. If the loudspeaker arrangements according to the invention are combined with one another in the vehicle as mentioned above, this has the further advantage that tonal improvements in the high frequency range are achieved which cannot be achieved by equalizing.
- the loudspeaker arrangement 1 essentially consists of a housing part 2.
- This housing part 2 which has a round outer contour, has in the middle an approximately funnel-shaped depression 4, whose approximately semicircular head surface 5 and its likewise semicircular base surface, which is smaller in comparison to the head surface 5 are designed so that two equally long partial lines 7.1, 7.2, which the ends 8 of the arc of a head or a bottom surface 5; 6 connect with each other, enclose an angle ⁇ to the inside of the recess 4.
- the tweeters 3.1 and 3.2 are inserted into the flat shell segments 9.1 and 9.2 of the recess 4.
- the tweeters 3.1, 3.2 used here are so-called dome tweeters, which, as the figure shows, are additionally provided with sound diffusers.
- These casing segments 9.1 and 9.2 are angled by approximately 30 ° with respect to the horizontal bottom surface 6, as illustrated in FIG. 3.
- the angle ⁇ , with which the center lines of the two tweeters 3.1 and 3.2 converge, is approximately 30 ° in FIG. 1, so that the angle ⁇ , which the converging partial line pairs 7.1 and 7.2 enclose, is 150 °.
- FIG. 2 The perspective illustration of the loudspeaker arrangement according to the invention shown in FIG. 2 further clarifies that the transitions 10.1, at which the ends 8 of the arc-shaped jacket segment 9.3 abut the flat jacket segments 9.1 and 9.2, and the transition 10.2 between the two flat jacket segments 9.1 and 9.2 are rounded are trained.
- This rounded design has the advantage that it further improves the sound quality of the loudspeaker arrangement according to the invention.
- the symmetrical arrangement of the two tweeters 3.1 and 3.2 relative to one another selected in the exemplary embodiment shown here is not essential to the invention.
- the loudspeaker 9.1 can form an angle of, for example, only 10 ° to the section line AA in FIG. 1 take, while the other speaker 9.2 has a 20 °.
- This configuration of the loudspeaker arrangement 1 allows the sound quality in the high-frequency range to be increased even further, since the sound reproduction can be adapted to the respective vehicle or optimized for this vehicle type by a special angling of the two high-frequency loudspeakers 3.1, 3.2.
- a separate housing part which has the specific angle values, is required for each side of the dashboard. This increases tool costs considerably.
- the recess 4 of the housing part 2 can of course be covered by a corresponding grid when installed in motor vehicles.
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Health & Medical Sciences (AREA)
- Otolaryngology (AREA)
- Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
- Stereophonic Arrangements (AREA)
- Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)
- Details Of Audible-Bandwidth Transducers (AREA)
Description
Die Erfindung befaßt sich mit einer Lautsprecheranordnung, insbesondere mit einer Hochtonlautsprecheranordnung, wie sie in Kraftfahrzeugen Verwendung findet.The invention relates to a loudspeaker arrangement, in particular a tweeter arrangement as used in motor vehicles.
Zur guten Klangwiedergabe ist es bekannt, das zu übertragende Frequenzband nicht mittels eines Lautsprechers, sondern mittels einer Mehrzahl von Lautsprechern zu übertragen. Dabei wird aber nicht das zu übertragende Frequenzband von allen Lautsprechern gleichermaßen übertragen. Vielmehr ist es üblich, beispielsweise die hochfrequenten Töne, die Töne der mittleren Frequenzen und die tiefen Töne durch verschiedene und dem jeweiligen Übertragungszweck angepaßte Lautsprecher abzustrahlen. Damit auch die hochfrequenten Töne von den Hochtonlautsprechern und die tiefen Töne von den Tieftonlautsprechern abgestrahlt werden, sind zwischen dem Verstärkerausgang und dem Lautsprecher sogenannte Frequenzweichen zwischengeordnet. Wie diese Frequenzweichen arbeiten, bedarf angesichts der Geläufigkeit dieser Bauteile keiner weiteren Erklärung.For good sound reproduction, it is known not to transmit the frequency band to be transmitted by means of a loudspeaker, but rather by means of a plurality of loudspeakers. However, the frequency band to be transmitted is not equally transmitted by all loudspeakers. Rather, it is common to emit, for example, the high-frequency tones, the tones of the middle frequencies and the low tones through different loudspeakers adapted to the respective transmission purpose. So that the high-frequency tones from the tweeters and the low tones from the woofers are emitted, so-called crossovers are interposed between the amplifier output and the speaker. How these crossovers work does not need any further explanation given the fluency of these components.
Verbindet man beispielsweise einen Hochton-, Mittelton- und Tieftonlautsprecher zu einem Boxenkonzepts, kann es vorkommen, daß eine derartig aufgebaute Box trotz einer optimalen Lautsprecherbestückung nicht klingt. Derartige Erscheinungen lassen sich durch den Einsatz von Equalizern in gewissen Grenzen verbessern. Auf die Arbeitsweise der Equalizer braucht im einzelnen nicht eingegangen zu werden, da auch deren Wirkweise allgemein bekannt ist.If, for example, you connect a tweeter, midrange and woofer to a speaker concept, it can happen that a speaker constructed in this way does not sound, despite the optimal speaker configuration. Such phenomena can be improved within certain limits by using equalizers. There is no need to go into detail on how the equalizers work, since their mode of operation is also well known.
Die Abstimmung eines Boxenkonzepts ist dann als relativ einfach zu bezeichnen, wenn es gilt, dieses Boxenkonzept für einen großen, geometrisch sehr regelmäßigen Raum -folgend Raumkonzept genannte -auszubilden.The coordination of a box concept can be described as relatively easy if it is necessary to design this box concept for a large, geometrically very regular room - hereinafter referred to as the room concept.
Soll jedoch ein Boxenkonzept für den Innenraum eines Kraftfahrzeuges ausgebildet werden, ist der Optimierungsvorgang gegenüber dem bloßen Optimierungsvorgang bei einem Raumkonzept erheblich schwieriger. Dies vor allem deshalb, weil der Innenraum eines Kraftfahrzeuges von seiner Größe her recht klein ist und außerdem die Anwesenheit von Sitzen und Polsterungen eine stark dämpfende Wirkung ausübt. Wegen des darüber hinaus beim Kraftfahrzeug bestehenden begrenzten Platzangebotes zum Einbau von Lautsprechern bzw. ganzen Lautsprecherboxen, werden vielfach die Lautsprecher, die beispielsweise die Übertragung eines Stereokanals übernehmen sollen, nicht in räumlicher Nähe zueinander, sondern an verschiedenen Einbauorten verteilt im Fahrzeug angeordnet. Wie schon bei den Raumkonzepten angedeutet, erfährt auch die Fahrzeugbeschallung eine Optimierung durch den Einsatz von Equalizern, obwohl durch diese Art der Optimierung nicht die Klangqualität erreicht werden kann, wie sie bei sogenannten Raumkonzepten vorherrscht.However, if a box concept is to be designed for the interior of a motor vehicle, the optimization process is considerably more difficult than the mere optimization process in a room concept. This is mainly because the size of the interior of a motor vehicle is quite small and, moreover, the presence of seats and upholstery exerts a strong damping effect. Because of the limited space available in motor vehicles for installing loudspeakers or entire loudspeaker boxes, in many cases the loudspeakers, which are to take over the transmission of a stereo channel, for example, are not arranged in close proximity to one another, but rather at different installation locations in the vehicle. As already indicated with the room concepts, the vehicle sound system is also optimized through the use of equalizers, although this type of optimization does not achieve the sound quality that prevails with so-called room concepts.
Da eine Optimierung der Beschallung des Innenraums eines Kraftfahrzeuges auch durch den Einsatz von sogenannten Equalizern nicht oder doch nur sehr bedingt erreicht werden kann, werden Konzepte dargetan, die sich auf eine Klangoptimierung bezogen auf eine bestimmte Position im Fahrzeug - zum Beispiel auf den Fahrersitz - beschränken. Diese Anordnungen haben aber den Nachteil, daß durch die Optimierung der Beschallung an einen Ort im Fahrzeuginneren die Beschallung der übrigen Orte zwangsläufig verschlechtert wird.Since an optimization of the sound system in the interior of a motor vehicle cannot be achieved or can only be achieved to a very limited extent even through the use of so-called equalizers, concepts are presented which are limited to sound optimization based on a specific position in the vehicle - for example the driver's seat . However, these arrangements have the disadvantage that, by optimizing the sound system at one location inside the vehicle, the sound system in the other locations is inevitably deteriorated.
Daher liegt der Erfindung die Aufgabe zugrunde, eine Lautsprecheranordnung anzugeben, die die obigen Nachteile nicht aufweist und zumindest für den Hochtonbereich eine verbesserte, räumliche Klangwiedergabe zeigt, die außerdem weitgehend unabhängig von der Sitzposition im Fahrzeug ist.The invention is therefore based on the object of specifying a loudspeaker arrangement which does not have the above disadvantages and which, at least for the high-frequency range, shows an improved spatial sound reproduction which is also largely independent of the seating position in the vehicle.
Diese Aufgabe wird dadurch gelöst, daß das Gehäuseteil eine etwa trichterförmige Vertiefung aufweist, deren Kopffläche und deren - Vergleich zur Kopffläche kleinere - Bodenfläche in etwa halbkreisförmig ausgebildet ist und deren in etwa gleich lange Teilgeraden, welche jeweils die Enden eines Kreisbogens einer Kopf- oder einer Bodenfläche miteinander verbinden, unter einem solchen Winkel zueinander verlaufen, daß ein Teilgeradenpaar zumindest einen Winkel α von <180° gemessen zur Innenseite der Vertiefung einschließen, und daß ein Hochtonlautsprecher in dem einen, ebenen Mantelsegment der Vertiefung und der andere Hochtonlautsprecher in dem anderen ebenen Mantelsegment der Vertiefung angeordnet ist, beide Hochtonlautsprecher ihren Schalldruck in Richtung des in Draufsicht kreisbogenförmigen und im seitlichen Schnitt konkav gekrümmten Mantelsegments der Vertiefung abstrahlen und die Mittelachsen der beiden Hochtonlautsprecher einen Winkel β einschließen, wobei der Winkel β =180°- α beträgt.This object is achieved in that the housing part has an approximately funnel-shaped depression, the top surface and its - compared to the top surface smaller - bottom surface is approximately semicircular and the approximately equally long partial straight line, each of which the ends of an arc of a head or a Connect the floor surface to each other, run at such an angle to each other that a partial straight line includes at least an angle α of <180 ° measured to the inside of the recess, and that a tweeter in one flat jacket segment of the recess and the other tweeter in the other flat jacket segment the recess is arranged, both tweeters their sound pressure in the direction of Radiate a plan view of the segment of the recess in the shape of an arc of a circle and concavely curved in the lateral section, and enclose the center axes of the two tweeters an angle β, the angle β = 180 ° - α.
Die mittels der erfinderischen Lautsprecheranordnung erzielten guten Eigenschaften in der Klangwiedergabe beruhren nach Erkenntnissen der Anmelderin darauf, daß, wenn die erfindungsgemäße Lautsprecheranordnung jeweils in der linken und rechten Hälfte der Armaturentafel eines Kraftfahrzeuges eingebaut ist, die Abstrahlung des Schalls nicht durch die Frontscheibe des Kraftfahrzeuges gebrochen wird, sondern direkt auf die Fahrer- und Beifahrerposition gelenkt wird. Die weitgehende Unabhängigkeit von der Sitzposition ist darauf zurückzuführen, daß durch die gewinkelte Anordnung der beiden Hochtonlautsprecher zueinander und die etwa kreisförmige Wölbung des Gehäuseteils für eine weitgehende Vereinheitlichung der Beschallung im Fahrzeug im hochfrequenten Bereich sorgt. Werden die erfindungsgemäßen Lautsprecheranordnungen wie oben angeführt im Fahrzeug miteinander kombiniert, hat dies den weiteren Vorteil, daß damit klangliche Verbesserungen im Hochtonbereich erzielt werden, die durch ein Equalizing nicht erreicht werden können.According to the applicant's knowledge, the good sound reproduction properties achieved by means of the inventive loudspeaker arrangement affect the fact that when the loudspeaker arrangement according to the invention is installed in the left and right half of the dashboard of a motor vehicle, the radiation of the sound is not broken through the windshield of the motor vehicle , but is directed directly to the driver and front passenger position. The extensive independence from the seating position is due to the fact that the angular arrangement of the two tweeters to each other and the approximately circular curvature of the housing part ensures that the sound in the vehicle is largely standardized in the high-frequency range. If the loudspeaker arrangements according to the invention are combined with one another in the vehicle as mentioned above, this has the further advantage that tonal improvements in the high frequency range are achieved which cannot be achieved by equalizing.
Vorteilhafte Aus- und Weiterbildungen der Erfindung sind in den Ansprüchen 2 bis 5 angegeben. Als besonders vorteilhaft hat es sich erwiesen, daß, wenn der Winkel β etwa 30° beträgt, dies ein Wert ist, der für eine Vielzahl von Fahrzeugen eine optimale Hochtonwiedergabe liefert. Gleiches gilt auch für die in Anspruch 5 angegebene Neigung der Mantelsegmente, in welchen die Hochtonlautsprecher eingesetzt werden. Dies heißt aber nicht, daß die soeben erörterten Gradzahlen auf diese Werte beschränkt sind. Vielmehr können die angegebenen Bandbreiten in vollem Umfang ausgeschöpft werden.Advantageous further developments of the invention are specified in
Es zeigen:
Figur 1- eine Lautsprecheranordnung in Draufsicht;
Figur 2- die in
Figur 1 dargestellte Lautsprechersnordnung in perspektivischer Darstellung; und Figur 3- einen Schnitt durch eine Lautsprecheranordnung gemäß der in in
Figur 1 angegebenen Linie AA.
- Figure 1
- a speaker arrangement in plan view;
- Figure 2
- the speaker arrangement shown in Figure 1 in perspective; and
- Figure 3
- a section through a loudspeaker arrangement along the line AA shown in Figure 1.
Die Erfindung soll nun anhand der Figuren näher erläutert werden. Die erfindungsgemäße Lautsprecheranordnung 1 besteht im wesentlichen aus einem Gehäuseteil 2. Dieses Gehäuseteil 2, welches eine runde Außenkontur aufweist, besitzt in der Mitte eine etwa trichterförmige Vertiefung 4, deren etwa halbkreisförmige Kopffläche 5 und deren ebenfalls halbkreisförmige, im Vergleich zur Kopffläche 5 aber kleinere Bodenfläche so ausgebildet sind, daß zwei gleich lange Teilgeraden 7.1, 7.2, welche die Enden 8 des Kreisbogens einer Kopf- oder einer Bodenfläche 5; 6 miteinander verbinden, zur Innenseite der Vertiefung 4 einen Winkel α einschließen. Die Hochtonlautsprecher 3.1 und 3.2 sind in die ebenen Mantelsegmente 9.1 und 9.2 der Vertiefung 4 eingesetzt.The invention will now be explained in more detail with reference to the figures. The
Bei den hierbei eingesetzten Hochtonlautsprechern 3.1, 3.2 handelt es sich um sogenannte Kalottenhochtonlautsprecher, die zusätzlich, wie die Figur zeigt, mit Schalldiffusoren versehen sind. Diese Mantelsegmente 9.1 und 9.2 sind gegenüber der waagerechten Bodenfläche 6 um etwa 30° angewinkelt, wie die Figur 3 näher veranschaulicht. Der Winkel β, mit dem die Mittelgeraden der beiden Hochtonlautsprecher 3.1 und 3.2 aufeinander zulaufen, beträgt in Figur 1 etwa 30°, so daß der Winkel α, den die aufeinander zulaufenden Teilgeradenpaare 7.1 und 7.2 einschließen, 150° beträgt.The tweeters 3.1, 3.2 used here are so-called dome tweeters, which, as the figure shows, are additionally provided with sound diffusers. These casing segments 9.1 and 9.2 are angled by approximately 30 ° with respect to the
Die konkave Ausbildung des Mantelsegments 9.3 der Vertiefung 4 ist in Figur 3 deutlich erkennbar. Auch zeigt diese Figur 3, daß die Mantelsegmente 9.1 und 9.2, in die die Hochtonlautsprecher eingesetzt sind, eben ausgebildet sind.The concave design of the jacket segment 9.3 of the recess 4 can be clearly seen in FIG. 3. This figure 3 also shows that the jacket segments 9.1 and 9.2, in which the tweeters are inserted, are flat.
Die perspektivische, in Figur 2 gezeigte Darstellung der erfindungsgemäßen Lautsprecheranordnung verdeutlicht weiterhin, daß die Übergänge 10.1, an denen die Enden 8 des kreisbogenförmigen Mantelsegments 9.3 an die ebenen Mantelsegmente 9.1 und 9.2 stoßen, sowie der Übergang 10.2 zwischen den beiden ebenen Mantelsegmenten 9.1 und 9.2 gerundet ausgebildet sind. Diese gerundete Ausbildung hat den Vorteil, daß hierdurch die Klangqualität der erfindungsgemäßen Lautsprecheranordnung weiter verbessert wird.The perspective illustration of the loudspeaker arrangement according to the invention shown in FIG. 2 further clarifies that the transitions 10.1, at which the
Die im hier dargestellten Ausführungsbeispiel gewählte symmetrische Anordnung der beiden Hochtonlautsprecher 3.1 und 3.2 zueinander ist nicht erfindungswesentlich. Ebensogut kann der Lautsprecher 9.1 zur Schnittlinie AA - in Figur 1 - einen Winkel von beispielsweise nur 10° einnehmen, während der andere Lautsprecher 9.2 einen solchen von 20° aufweist. Durch diese Ausbildung der Lautsprecheranordnung 1 läßt sich die Klangqualität im Hochtonbereich noch weiter steigern, da durch eine spezielle Anwinkelung der beiden Hochtonlautsprecher 3.1, 3.2 die Klangwiedergabe den jeweiligen Fahrzeug angepaßt werden kann bzw. für diesen Fahrzeugtyp optimiert werden kann. Jedoch muß dabei beachtet werden, daß für die stereophone Wiedergabe von Tönen im Kraftfahrzeug für jede Seite der Armaturentafel ein eigenes Gehäuseteil, welches die spezifischen Winkelwerte aufweist, erforderlich ist. Dies erhöht die Werkzeugkosten beträchtlich.The symmetrical arrangement of the two tweeters 3.1 and 3.2 relative to one another selected in the exemplary embodiment shown here is not essential to the invention. Just as well, the loudspeaker 9.1 can form an angle of, for example, only 10 ° to the section line AA in FIG. 1 take, while the other speaker 9.2 has a 20 °. This configuration of the
Ferner sei darauf hingewiesen, daß die Vertiefung 4 des Gehäuseteils 2 beim Einbau in Kraftfahrzeugen selbstverständlich durch ein entsprechendes Gitter abgedeckt sein kann.Furthermore, it should be noted that the recess 4 of the
Claims (5)
- Loudspeaker arrangement (1), with an enclosure (2) and with two dome-type high-frequency loudspeakers (3.1, 3.2) that are mounted in the enclosure (2), characterised in that the enclosure (2) has a roughly funnel-shaped recess (4) whose approximately semicircular top face (5) and whose likewise semicircular but, compared to the top face (5), smaller bottom face (6) is designed in such a way that two straight line sections (7.1, 7.2) of equal length, each of which joins together the ends (8) of the arc of a top face or a bottom face (5; 6), respectively, run at such an angle to each other that a pair of straight line sections (7.1 and 7.2) enclose an angle α of < 180° measured at the inside of the recess (4), and that one high-frequency loudspeaker (3.1) is arranged in the one plane outer segment (9.1) of the recess (4) and the other high-frequency loudspeaker (3.2) is arranged in the other plane outer segment (9.2) of the recess (4), both high-frequency loudspeakers (3.1; 3.2) radiating their sound pressure in the direction of the outer segment (9.3) of the recess (4), which is arc-shaped when viewed from the top and concave-shaped when viewed as a transverse section, and the central axes of both high-frequency loudspeakers (3.1, 3.2) enclose an angle β, where the angle β = 180° - α.
- Loudspeaker arrangement (1) according to Claim 1,
characterised in that the angle β has a value between 25 and 45°, preferably approximately 30°. - Loudspeaker arrangement (1) according to Claim 1,
characterised in that the transitions (10.1) from the arc-shaped outer segment (9.3) to the plane outer segments (9.1, 9.2) and the transition (10.2) between the two plane outer segments (9.1, 9.2) are of rounded configuration. - Loudspeaker arrangement (1) according to one of the claims 1 to 3, characterised in that the slope of the outer segments (9.1, 9.2) and thus the slope of the central axes of the high-frequency loudspeakers (3.1, 3.2) is such that the central (imaginary, projected) axes of the high-frequency loudspeakers (3.1, 3.2) project at a distance above the upper edge (11) of the arc-shaped outer segment (9.3).
- Loudspeaker arrangement (1) according to claim 4, characterised in that the slope of the plane outer segments (9.1, 9.2) at the mounting positions of the high-frequency loudspeakers (3.1, 3.2) is approximately 25 to 35°, preferably 30°, with respect to the horizontally-extended bottom face (6).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE4108504A DE4108504A1 (en) | 1991-03-15 | 1991-03-15 | DOUBLE TONE TONE SPEAKER |
| DE4108504 | 1991-03-15 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0503611A1 EP0503611A1 (en) | 1992-09-16 |
| EP0503611B1 true EP0503611B1 (en) | 1994-07-20 |
Family
ID=6427408
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP92104228A Expired - Lifetime EP0503611B1 (en) | 1991-03-15 | 1992-03-11 | Doubly concave high-pitch loudspeakers |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP0503611B1 (en) |
| JP (1) | JPH05252586A (en) |
| DE (2) | DE4108504A1 (en) |
| ES (1) | ES2061292T3 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4433464B2 (en) * | 2004-05-31 | 2010-03-17 | 本田技研工業株式会社 | Motorcycle sound equipment |
| DE102010005028B4 (en) * | 2010-01-20 | 2023-08-10 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Recording device for loudspeakers in a motor vehicle |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2163376A1 (en) * | 1971-12-15 | 1973-07-27 | Comparon Jean Daniel | |
| JPS5654709Y2 (en) * | 1977-08-06 | 1981-12-19 | ||
| BE877364R (en) * | 1978-07-27 | 1979-10-15 | Grootaers Antoine | NEW SOUND REPRODUCTION SYSTEM |
| US4391346A (en) * | 1979-10-04 | 1983-07-05 | Naoyuki Murakami | Loud-speaker |
-
1991
- 1991-03-15 DE DE4108504A patent/DE4108504A1/en not_active Withdrawn
-
1992
- 1992-03-11 EP EP92104228A patent/EP0503611B1/en not_active Expired - Lifetime
- 1992-03-11 DE DE59200288T patent/DE59200288D1/en not_active Expired - Fee Related
- 1992-03-11 ES ES92104228T patent/ES2061292T3/en not_active Expired - Lifetime
- 1992-03-16 JP JP4058472A patent/JPH05252586A/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| EP0503611A1 (en) | 1992-09-16 |
| DE4108504A1 (en) | 1992-09-17 |
| DE59200288D1 (en) | 1994-08-25 |
| JPH05252586A (en) | 1993-09-28 |
| ES2061292T3 (en) | 1994-12-01 |
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