DE890810C - Protection device for loudspeaker chassis against the effects of shot and sound - Google Patents
Protection device for loudspeaker chassis against the effects of shot and soundInfo
- Publication number
- DE890810C DE890810C DEL4463D DEL0004463D DE890810C DE 890810 C DE890810 C DE 890810C DE L4463 D DEL4463 D DE L4463D DE L0004463 D DEL0004463 D DE L0004463D DE 890810 C DE890810 C DE 890810C
- Authority
- DE
- Germany
- Prior art keywords
- loudspeaker
- sound
- loudspeaker chassis
- effects
- protection device
- 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
Links
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
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Details Of Audible-Bandwidth Transducers (AREA)
Description
Die bekannten Lautsprecheranordnungen, welche zum Übermitteln von Befehlen oder Nachrichten dienen, sind derart ausgestaltet, daß das Lautsprecher-Chassis in einem Gehäuse untergebracht ist und sich an dem Gehäuse eine richtungweisende Schallöffnung befindet. Bei diesen bekannten Anordnungen tritt der Nachteil auf, daß das Lautsprecher-Chassis nicht gegen Feuchtigkeit geschützt ist. Stehen die bekannten Lautsprecheranordnungen weiterhin unter dem Einfluß von Schuß-Schall-Wirkungen, geschieht es, daß durch die Druck-oder iSogkräfte die Membran des Lautsprechers zerreist.The known loudspeaker arrangements which are used for transmitting Commands or messages are designed so that the loudspeaker chassis is housed in a housing and on the housing a directional Sound opening is located. These known arrangements have the disadvantage that that the loudspeaker chassis is not protected against moisture. Are the known loudspeaker arrangements still under the influence of shot-sound effects, it happens that the membrane of the loudspeaker is damaged by the pressure or suction forces tears up.
Um die geschilderten Nachteile der bekannten Anordnungen zu vermeiden, wird erfindungsgemäß vorgeschlagen, daß das im Lautsprechergehäuse befindliche Lautsprecher-Chassis durch eine an den Sehall- undAtanungsfiffnungen angebrachte Schutzhaut vollkommen von der umgebenden Atmosphäre abgeschlossen wird. Die Schutzhaut, welche an den Schall- und Atmungsöffnungen angebracht wird, besteht aus einem feuchtigkeitswiderstandsfähigen und die Feuchtigkeit albhaltenden Material, beispielsweise einer Celluloseazetatm.asise. Zur Verstärkung dieser aus einer Cellu;loyseazetatmasse bestehenden ,Schutzhaut kann dieselbe mit einem weitmaschigen Spinnstoff oder Drahtgewebe oder beidem verbunden werden. Hierbei ist es gleichgültig, ob die Celluloseazetatmasse als Folie auf dem ,Spinnstoff aufgeklebt wird; oder ab ,die Masse aufgespritzt oder aufgewalzt wird. Die Weitmaschigkeit des Spinnstoffgewebes ist vorgesehen, um -die Schutzhaut teilweise elastisch zu gestalten zum Zweck der Schallfrequenzüberuragung und hierbei eventuell auftretende, im Hörbereich liegende Eigenschwingungen zu vermeiden. Die,Schutizhaut ist ,zur .Abdichtung des Lautsprechergehäuses an den .Schall- und Atmungsöffnungen angebracht, so daß die empfindliche Membran des Lautsprecher-Chassis vollständig von der Umgebung abgeschlossen ist; so daß bei .der erfindungsgemäßen Anordnung ein Eindringen von Feuchtigkeit in den aibgeschlossenen Chassisraum vermieden wird und die Druck- bzw. Siogwellen, die durch einen Schuß od. idgl. 'hervorgerufen worden sind, ,so vermindert werden, daß auch gleichzeitig ein Zerreißen der Membran .des Lautsprechersystems verhindert wird.In order to avoid the described disadvantages of the known arrangements, the invention proposes that the loudspeaker chassis located in the loudspeaker housing thanks to a protective skin attached to the Sehall and Atanungs openings is closed off from the surrounding atmosphere. The protective skin that is attached to the Sound and breathing openings is attached, consists of a moisture-resistant and the moisture-retaining material such as a cellulose acetate base. To strengthen this protective skin consisting of a cellulose acetate mass it can be connected with a wide-meshed textile or wire cloth or both will. It does not matter whether the cellulose acetate mass is a film on the , Textile material is glued on; or from, the mass is sprayed on or rolled on. The wide mesh of the textile fabric is intended to partially cover the protective skin to make elastic for the purpose of sound frequency transmission and possibly in this case avoid natural vibrations occurring in the hearing area. Die, Schutizhaut is, for .sealing the loudspeaker housing at the .sound and breathing openings attached so that the sensitive membrane of the loudspeaker chassis is complete is isolated from the environment; so that with .the inventive arrangement penetration of moisture into the closed chassis space is avoided and the pressure or Siogwellen, which od by a shot. Idgl. 'has been caused are, are so reduced that at the same time a tearing of the membrane .des Speaker system is prevented.
In der Zeichnung ist eine beispielsweise Ausführungsform des Erfindergedankens dargestellt. In .;einem Gehäuse i ist .das Lautsprecher-Chassis :2 untergebriacht.. Die Atmungsöffmungen 3 werden durch eine im Innern des Lautsprechergehäuses angeordnete Schutzschicht 4 abgeschlossen. Die Schutzhaut 4 wird von besonders angeordneten Schutzhauturagringen.5getragen, Nach der Schallöffnung 6 'hin wird das Lautsprecher-Chassis 2 durch eine :Schut-zhaub 7 abgeschlossen, welche an den Chassistragringen 8 befestigt ist.In the drawing is an example embodiment of the inventive concept shown. In.; A housing i. The loudspeaker chassis: 2 accommodated .. The breathing openings 3 are arranged in the interior of the loudspeaker housing Protective layer 4 completed. The protective skin 4 is specially arranged Protective skin rings.5 worn, after the sound opening 6 'is the loudspeaker chassis 2 closed by a protective cover 7 which is attached to the chassis support rings 8 is.
Claims (2)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEL4463D DE890810C (en) | 1943-11-03 | 1943-11-03 | Protection device for loudspeaker chassis against the effects of shot and sound |
DEL5006D DE898458C (en) | 1943-11-03 | 1944-10-27 | Protection device for loudspeaker chassis against the effects of shot and sound |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEL4463D DE890810C (en) | 1943-11-03 | 1943-11-03 | Protection device for loudspeaker chassis against the effects of shot and sound |
Publications (1)
Publication Number | Publication Date |
---|---|
DE890810C true DE890810C (en) | 1953-09-21 |
Family
ID=7256520
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEL4463D Expired DE890810C (en) | 1943-11-03 | 1943-11-03 | Protection device for loudspeaker chassis against the effects of shot and sound |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE890810C (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1274191B (en) * | 1963-05-13 | 1968-08-01 | Heinrich Peiker | Electroacoustic converter with protective membrane and protective grille |
US5367576A (en) * | 1991-09-10 | 1994-11-22 | Sony Corporation | Horn speaker |
WO1995034184A1 (en) * | 1994-06-08 | 1995-12-14 | Northern Telecom Limited | A personal hands free communications device |
FR2726796A1 (en) * | 1994-11-16 | 1996-05-15 | Sofitec Sa | SEALED RECEPTACLE FOR SPEAKER IN A VEHICLE |
-
1943
- 1943-11-03 DE DEL4463D patent/DE890810C/en not_active Expired
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1274191B (en) * | 1963-05-13 | 1968-08-01 | Heinrich Peiker | Electroacoustic converter with protective membrane and protective grille |
US5367576A (en) * | 1991-09-10 | 1994-11-22 | Sony Corporation | Horn speaker |
WO1995034184A1 (en) * | 1994-06-08 | 1995-12-14 | Northern Telecom Limited | A personal hands free communications device |
FR2726796A1 (en) * | 1994-11-16 | 1996-05-15 | Sofitec Sa | SEALED RECEPTACLE FOR SPEAKER IN A VEHICLE |
EP0712758A1 (en) * | 1994-11-16 | 1996-05-22 | Sofitec Sa | Water resistant receptacle for a loudspeaker in a vehicle |
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