EP0015590B1 - Compact stereo apparatus - Google Patents

Compact stereo apparatus Download PDF

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Publication number
EP0015590B1
EP0015590B1 EP19800200065 EP80200065A EP0015590B1 EP 0015590 B1 EP0015590 B1 EP 0015590B1 EP 19800200065 EP19800200065 EP 19800200065 EP 80200065 A EP80200065 A EP 80200065A EP 0015590 B1 EP0015590 B1 EP 0015590B1
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EP
European Patent Office
Prior art keywords
parts
casing according
casing
another
speakers
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
Application number
EP19800200065
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German (de)
French (fr)
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EP0015590A1 (en
Inventor
Dieter Rams
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.)
Braun GmbH
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Braun GmbH
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Publication date
Application filed by Braun GmbH filed Critical Braun GmbH
Publication of EP0015590A1 publication Critical patent/EP0015590A1/en
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R5/00Stereophonic arrangements
    • H04R5/02Spatial or constructional arrangements of loudspeakers

Definitions

  • the invention relates to a device for reproducing acoustic stereo signals with at least two speakers.
  • a device for stereophonic sound reproduction which has a box in which electrical parts of the device are arranged, at least two speakers which are structurally unitary and which are adjustable with respect to one another are provided, each with one of the channels of the electrical device in connection (CH-PS 232 943).
  • the disadvantage here is that a total of three mutually displaceable parts, namely the two speakers and the box, are required.
  • the same disadvantage also has a known music chest, a radio receiver and a portable radio for stereo sound reproduction, in which speakers that can be folded out or connected to the side are provided, which enable the stereo base width to be increased (DE-GM 17 76 869, US Pat. No. 4,070,546 , U.S. Patent 3,943,564).
  • the invention has for its object to provide a housing for a device with which acoustic stereo signals can be reproduced, which is compact and has two devices for receiving speakers or speaker systems whose spatial distance is variable without the devices for receiving the speakers or speaker systems are inserted into a housing or the like.
  • the advantage achieved by the invention is in particular that the stereo base width of an acoustic playback device can be changed by simply moving two parts.
  • the 1 shows a device 1 for the reproduction of acoustic signals, which consists of two parts, namely a lower part 2 and an upper part 3.
  • the lower part 2 contains a loudspeaker 4 at its left end and in its central region a radio receiving part 5 and a cassette device 6.
  • a handle 7 for carrying the device 1 is arranged at the upper end of the lower part 2.
  • At the lower end of the lower part 2 there is a base plate 8 which has the shape of a trapezoid.
  • the loudspeaker 4 is arranged at an angle of 45 ° relative to the front surface of the radio receiving part 5 and also relative to the base surface provided parallel thereto.
  • the upper part 3 is displaceable parallel to the front surface of the radio receiving part 5, specifically via corresponding slide rails 10 or the like.
  • This upper part 3 has the shape of a cuboid, the two side parts of which are chamfered at an angle of 45 °. In one side part there is a recessed grip .11, while the other side part is formed by a loudspeaker 12. Antennas 13 are also provided on the upper side of the lower part 2.
  • FIG. 2 shows the same device as FIG. 1, but in the pushed-together state.
  • the distance between the loudspeakers 4 and 12 is therefore reduced here, so that the device 1 can be carried comfortably.
  • FIG. 3 shows the same device as in FIG. 1, in a partially pushed-together state, whereby the loudspeaker 4, the base plate 8, the recessed grip 11 and the radio receiving part 5 can be seen.
  • Fig. 4 the lower and the upper part 2, 3 is shown from the side, these parts - as in Fig. 2 - pushed together. It is also indicated that a woofer 18 can be provided in the upper part 3.
  • FIG. 5 shows that side of the device 1 which lies opposite the side shown in FIG. 4.
  • Fig. 6 is a plan view of the device 1 is shown, in which one can see the handle 7 and the lower and the upper part 2 and 3. With 20 to 28, the edges are designated, which can be provided with foam.

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

Description

Die Erfindung betrifft ein Gerät für die Wiedergabe akustischer Stereosignale mit mindestens zwei Lautsprechern.The invention relates to a device for reproducing acoustic stereo signals with at least two speakers.

Um einen guten Stereoempfang mit Hilfe von Lautsprechern zu gewährleisten, ist ein gewisser Abstand zwischen mindestens zwei Lautsprechern erforderlich. Vielfach fehlt es jedoch an den räumlichen Voraussetzungen, um eine ausreichende Basisbreite zwischen den Lautsprechern herzustellen. Insbesondere ist es schwierig, mit tragbaren Geräten eine Stereowiedergabe zu ermöglichen.To ensure good stereo reception with the help of speakers, a certain distance between at least two speakers is required. However, there is often a lack of space to create a sufficient base width between the speakers. In particular, it is difficult to enable stereo playback with portable devices.

Es ist bereits ein Gerät für stereophonische Schallwiedergabe bekannt, die einen Kasten aufweist, in dem elektrische Teile des Geräts angeordnet sind, wobei wenigstens zwei mit diesem Kasten baulich eine Einheit bildende, gegeneinander verstellbare Lautsprecher vorgesehen sind, die mit je einem der Kanäle des elektrischen Geräts in Verbindung stehen (CH-PS 232 943). Nachteilig ist hierbei, daß insgesamt drei gegeneinander verschiebbare Teile, nämlich die beiden Lautsprecher und der Kasten, erforderlich sind. Denselben Nachteil weisen auch eine bekannte Musiktruhe, ein Rundfunkempfangsgerät und ein Kofferradio für Stereo-Schallwiedergabe auf, bei denen seitlich herausklappbare bzw. anschließbare Lautsprecher vorgesehen sind, die eine Vergrößerung der Stereobasisbreite ermöglichen (DE-GM 17 76 869, US-PS 4 070 546, US-PS 3 943 564).A device for stereophonic sound reproduction is already known, which has a box in which electrical parts of the device are arranged, at least two speakers which are structurally unitary and which are adjustable with respect to one another are provided, each with one of the channels of the electrical device in connection (CH-PS 232 943). The disadvantage here is that a total of three mutually displaceable parts, namely the two speakers and the box, are required. The same disadvantage also has a known music chest, a radio receiver and a portable radio for stereo sound reproduction, in which speakers that can be folded out or connected to the side are provided, which enable the stereo base width to be increased (DE-GM 17 76 869, US Pat. No. 4,070,546 , U.S. Patent 3,943,564).

Der Erfindung liegt die Aufgabe zu Grunde, ein Gehäuse für ein Gerät zu schaffen, mit dem akustische Stereo-Signale wiedergegeben werden können, das kompakt aufgebaut ist und zwei Einrichtungen für die Aufnahme von Lautsprechern oder Lautsprechersystemen aufweist, deren räumlicher Abstand veränderlich ist, ohne daß die Einrichtungen für die Aufnahme der Lautsprecher oder Lautsprechersysteme in ein Gehäuse oder dergleichen eingeschoben werden.The invention has for its object to provide a housing for a device with which acoustic stereo signals can be reproduced, which is compact and has two devices for receiving speakers or speaker systems whose spatial distance is variable without the devices for receiving the speakers or speaker systems are inserted into a housing or the like.

Diese Aufgabe wird gemäß den Merkmalen des Anspruchs 1 gelöst.This object is achieved according to the features of claim 1.

Der mit der Erfindung erzielte Vorteil besteht insbesondere darin, daß durch einfaches Verschieben zweier Teile die Stereobasisbreite eines akustischen Wiedergabegeräts verändert werden kann.The advantage achieved by the invention is in particular that the stereo base width of an acoustic playback device can be changed by simply moving two parts.

Weitere Vorteile ergeben sich mit den Merkmalen der abhängigen Ansprüche.Further advantages result from the features of the dependent claims.

Ein Ausführungsbeispiel ist in der Zeichnung dargestellt und wird im folgenden näher beschrieben. Es zeigen :

  • Figur 1 eine Darstellung des Geräts von vorne, wobei die beiden Lautsprecher voneinander entfernt sind ;
  • Figur 2 eine Darstellung des Geräts von vorne, wobei die beiden Lautsprecher einander genähert sind ;
  • Figur 3 eine Darstellung des Geräts schräg von vorne mit teilweise einander genäherten Lautsprechern ;
  • Figur 4 eine Seitenansicht des Geräts, bei welcher der Lautsprecher des Basisteils erkennbar ist ;
  • Figur 5 eine Seitenansicht des Geräts, bei welcher der Lautsprecher des Frontteils erkennbar ist ;
  • Figur 6 eine Draufsicht auf das Gerät.
An embodiment is shown in the drawing and will be described in more detail below. Show it :
  • Figure 1 is a front view of the device with the two speakers spaced apart;
  • Figure 2 is an illustration of the device from the front, with the two speakers approaching each other;
  • Figure 3 is an illustration of the device obliquely from the front with speakers partially approached to each other;
  • FIG. 4 shows a side view of the device in which the loudspeaker of the base part can be seen;
  • FIG. 5 shows a side view of the device in which the loudspeaker of the front part can be seen;
  • Figure 6 is a plan view of the device.

In der Fig. 1 ist ein Gerät 1 für die Wiedergabe akustischer Signale dargestellt, das aus zwei Teilen besteht, nämlich einem unteren Teil 2 und einem oberen Teil 3. Der untere Teil 2 enthält an seinem linken Ende einen Lautsprecher 4 und in seinem mittleren Bereich einen Rundfunkempfangsteil 5 sowie ein Kassettengerät 6. Außerdem ist am oberen Ende des unteren Teils 2 ein Handgriff 7 zum Tragen des Geräts 1 angeordnet. Am unteren Ende des unteren Teils 2 befindet sich eine Bodenplatte 8 welche die Form eines Trapezes hat. Der Lautsprecher 4 ist relativ zur Frontfläche des Rundfunkempfangsteils 5 und auch relativ zur parallel hierzu vorgesehenen Grundfläche in einem Winkel von 45° angeordnet. Parallel zur Frontfläche des Rundfunkempfangsteils 5 ist der obere Teil 3 verschiebbar, und zwar über entsprechende Gleitschienen 10 oder dergleichen. Dieser obere Teil 3 hat die Form eines Quaders, dessen zwei Seitenteile in einem Winkel von 45° abgeschrägt sind. In dem einen Seitenteil befindet sich eine Griffmulde .11, während das andere Seitenteil durch einen Lautsprecher 12 gebildet wird. Auf der Oberseite des unteren Teils 2 sind noch Antennen 13 vorgesehen.1 shows a device 1 for the reproduction of acoustic signals, which consists of two parts, namely a lower part 2 and an upper part 3. The lower part 2 contains a loudspeaker 4 at its left end and in its central region a radio receiving part 5 and a cassette device 6. In addition, a handle 7 for carrying the device 1 is arranged at the upper end of the lower part 2. At the lower end of the lower part 2 there is a base plate 8 which has the shape of a trapezoid. The loudspeaker 4 is arranged at an angle of 45 ° relative to the front surface of the radio receiving part 5 and also relative to the base surface provided parallel thereto. The upper part 3 is displaceable parallel to the front surface of the radio receiving part 5, specifically via corresponding slide rails 10 or the like. This upper part 3 has the shape of a cuboid, the two side parts of which are chamfered at an angle of 45 °. In one side part there is a recessed grip .11, while the other side part is formed by a loudspeaker 12. Antennas 13 are also provided on the upper side of the lower part 2.

Die Fig. 2 zeigt dasselbe Gerät wie die Fig. 1, jedoch in zusammengeschobenem Zustand. Der Abstand zwischen den Lautsprechern 4 und 12 ist hier also verkleinert, so daß das Gerät 1 bequem getragen werden kann.FIG. 2 shows the same device as FIG. 1, but in the pushed-together state. The distance between the loudspeakers 4 and 12 is therefore reduced here, so that the device 1 can be carried comfortably.

In der Fig. 3 ist dasselbe Gerät wie in der Fig. 1 dargestellt, und zwar in teilweise zusammengeschobenem Zustand, wobei man den Lautsprecher 4, die Bodenplatte 8, die Griffmulde 11 und den Rundfunkempfangsteil 5 erkennt.FIG. 3 shows the same device as in FIG. 1, in a partially pushed-together state, whereby the loudspeaker 4, the base plate 8, the recessed grip 11 and the radio receiving part 5 can be seen.

In der Fig. 4 wird der untere und der obere Teil 2, 3 von der Seite dargestellt, wobei diese Teile - wie in der Fig. 2 - zusammengeschoben sind. Dabei ist noch angedeutet, daß in dem oberen Teil 3 ein Tieftöner 18 vorgesehen sein kann.In Fig. 4, the lower and the upper part 2, 3 is shown from the side, these parts - as in Fig. 2 - pushed together. It is also indicated that a woofer 18 can be provided in the upper part 3.

Die Fig. 5 zeigt diejenige Seite des Geräts 1, die der in der Fig. 4 gezeigten Seite gegenüberliegt.FIG. 5 shows that side of the device 1 which lies opposite the side shown in FIG. 4.

Man erkennt besonders in Fig. 6, daß diese Seite des unteren Teils 2 nicht abgeschrägt ist.6 that this side of the lower part 2 is not beveled.

In der Fig. 6 ist eine Draufsicht auf das Gerät 1 gezeigt, bei der man der Tragegriff 7 erkennt sowie den unteren und den oberen Teil 2 bzw. 3. Mit 20 bis 28 sind die Kanten bezeichnet, die mit Schaumstoff versehen sein können.In Fig. 6 is a plan view of the device 1 is shown, in which one can see the handle 7 and the lower and the upper part 2 and 3. With 20 to 28, the edges are designated, which can be provided with foam.

Claims (7)

1. Casing for a portable apparatus for reproducing acoustic stereo signals, comprising parts which are fixed to one another and horizontally displaceable relative to one another for receiving loudspeakers, one of the parts containing a radio receiver or the like, characterized in that the casing is formed from only two parts, (2, 3) which, at horizontally opposite ends, are in each case constructed in a chamfered lateral surface with a device for receiving a loudspeaker system (4, 12), and that the first and second parts (2, 3) can be moved over one another in such a way that the front surface (16) of the first part (2) is cqmpletely or almost completely covered by the rear surface (14) of the second part (3).
2. Casing according to claim 1, characterized in that the chamfered lateral surfaces form an angle of approximately 45° with respect to the rear and front surfaces (9, 14 ; 15, 16) of the two parts (2, 3).
3. Casing according to one of the claims 1 or 2, characterized in that the rear surface (9, 14) of each of the two parts (2, 3) is larger than the front surface (15, 16) in each case.
4. Casing according to claim 1, characterized in that the device (7) for carrying apparatus (1) is integrated into the casing body.
5. Casing according to claim 1, characterized in that each loudspeaker system (4, 12) has a plurality of individual loudspeakers, e. g. tweeters, woofers and mid-range speakers.
6. Casing according to claim 1, characterized in that the edge areas (20 to 28) of the lateral and/or front surfaces of the apparatus (1) are surrounded with shock-absorbing means.
7. Casing according to claim 1, characterized in that a tweeter (18) is provided in the front part (3).
EP19800200065 1979-03-03 1980-01-28 Compact stereo apparatus Expired EP0015590B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2908349 1979-03-03
DE19792908349 DE2908349A1 (en) 1979-03-03 1979-03-03 STEREO COMPACT DEVICE

Publications (2)

Publication Number Publication Date
EP0015590A1 EP0015590A1 (en) 1980-09-17
EP0015590B1 true EP0015590B1 (en) 1983-06-22

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EP19800200065 Expired EP0015590B1 (en) 1979-03-03 1980-01-28 Compact stereo apparatus

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Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29821321U1 (en) * 1998-11-28 2000-04-13 Sorus Audio AG, 46049 Oberhausen Device for generating stereo sound
US7469052B2 (en) * 2004-06-18 2008-12-23 Peavey Electronics Corporation Portable sound system, apparatus, and method

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE449683A (en) * 1942-03-18
DE1776869U (en) * 1958-06-27 1958-11-06 Loewe Opta Ag MUSIC CHEST FOR STEREO SOUND PLAYBACK.
NL267133A (en) * 1960-07-15
US3943564A (en) * 1975-06-05 1976-03-09 Superscope, Inc. Stereophonic recording and playback apparatus
JPS5516467Y2 (en) * 1975-08-29 1980-04-17

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EP0015590A1 (en) 1980-09-17
DE2908349A1 (en) 1980-09-04

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