DE907424C - Heat-resistant speaker membrane - Google Patents
Heat-resistant speaker membraneInfo
- Publication number
- DE907424C DE907424C DES3416D DES0003416D DE907424C DE 907424 C DE907424 C DE 907424C DE S3416 D DES3416 D DE S3416D DE S0003416 D DES0003416 D DE S0003416D DE 907424 C DE907424 C DE 907424C
- Authority
- DE
- Germany
- Prior art keywords
- heat
- fabric
- membrane
- glass silk
- knitted
- 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
- H04R7/00—Diaphragms for electromechanical transducers; Cones
- H04R7/02—Diaphragms for electromechanical transducers; Cones characterised by the construction
- H04R7/12—Non-planar diaphragms or cones
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R7/00—Diaphragms for electromechanical transducers; Cones
- H04R7/02—Diaphragms for electromechanical transducers; Cones characterised by the construction
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Diaphragms For Electromechanical Transducers (AREA)
Description
Im Patent 863 084 ist eine Lautsprechermembran beschrieben, bei der eine weitgehende Unempfindlichkeit gegen Einwirkungen hoher Temperaturen dadurch erreicht ist, daß als Membranmaterial ein mittels hitzebeständiger Lacke verfestigtes Glasseidengewebe verwendet ist. Die Herstellung einer solchen Membran kann in einfacher Weise beispielsweise dadurch erfolgen, daß ein mit einem solchen Lack, z. B. auf einer Glycerin-Phthalsäure-Baisiis hergestellter Lack, verfestigtes Glasseidengewebe aus einem glatten Tuchstück gedruckt wird. Eine solche Herstellung ist jedoch schwierig, da das gebräuchliche Glasseidengewebe in Richtung von Kette und Schuß nicht die für das Drücken erforderliche Dehnung und die nötige Elastizität besitzt und deshalb leicht bricht.In the patent 863 084 a loudspeaker diaphragm is described in which an extensive Insensitivity to the effects of high temperatures is achieved in that the membrane material a fiberglass fabric strengthened by means of heat-resistant lacquers is used. the Such a membrane can be produced in a simple manner, for example, in that one with such a varnish, e.g. B. on a glycerol-phthalic acid base Manufactured lacquer, solidified glass silk fabric printed from a smooth piece of cloth will. Such a production is difficult, however, since the conventional glass silk fabric in the direction of the warp and weft does not have the necessary elongation and necessary for pressing Has elasticity and therefore breaks easily.
Dieser Nachteil wird durch die Erfindung beseitigt. Erfindungsgemäß kommt als Membranmaterial ein derart gewebter, gewirkter, gestrickter oder gehäkelter Glasseidenstoff zur Verwendung, daß der Fadenverlauf auch eine Komponente in Richtung der Dicke des Stoffes besitzt. Bei einem derartigen, beispielsweise als Glasseidentrikot ausgebildeten Stoff ist die zum Drücken der Membran notwendige Dehnung und Elastizität vorhanden.This disadvantage is eliminated by the invention. According to the invention, a membrane material that is woven, knitted or knitted in this way is used as the membrane material or crocheted glass silk fabric for use that the thread course is also a component in The direction of the thickness of the fabric. In such a jersey, for example designed as a glass silk jersey Fabric has the necessary stretch and elasticity to press the membrane.
In der Zeichnung ist ein AusführungsbeispielIn the drawing is an embodiment
für die Erfindung dargestellt. Es handelt sich hierbei um eine Lautsprechermembran, die aus Glasseidentrikot besteht. Weiterhin zeigt die Figur, in welcher Weise das Drücken einer solchen Membran vorgenommen werden kann.shown for the invention. It is a speaker cone that consists of Glass silk jersey is made. Furthermore, the figure shows the way in which pressing such Membrane can be made.
Zur Herstellung einer Lautsprechermembran wird von einem glatten Trikottuch aus Glasseide ausgegangen, das nach erfolgter Verformung mit Lack eingestrichen und getrocknet wird. Die Membran 1 liegt auf der aus dem Unterteil 2 und dem Oberteil 3 bestehenden Verformungsvorrichtung an den Schneiden α sowie an dem Druckteil 4 bzw. 5 an den Schneiden b auf. Die Vorrichtung ist im übrigen so getroffen, daß eine Rotation während der Trocknung im Ofen stattfinden kann. Von den Schneiden α und b läßt sich die Membran ohne Schwierigkeiten abheben. Es ist unter Umständen zweckmäßig, die Auflageflachen mit Zinnfolie zu unterlegen.To produce a loudspeaker diaphragm, a smooth tricot cloth made of glass silk is assumed, which is coated with varnish after shaping and then dried. The membrane 1 rests on the deformation device consisting of the lower part 2 and the upper part 3 on the cutting edges α and on the pressure part 4 or 5 on the cutting edges b . The device is also designed so that rotation can take place during drying in the oven. The membrane can be lifted off from the cutting edges α and b without difficulty. It may be useful to put tin foil underneath the supporting surfaces.
Claims (3)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DES3416D DE907424C (en) | 1941-03-07 | 1941-12-10 | Heat-resistant speaker membrane |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DES3423D DE863084C (en) | 1941-03-07 | 1941-03-07 | Loudspeaker membrane, largely insensitive to high temperatures, with high acoustic efficiency over the entire listening frequency range |
DES3416D DE907424C (en) | 1941-03-07 | 1941-12-10 | Heat-resistant speaker membrane |
Publications (1)
Publication Number | Publication Date |
---|---|
DE907424C true DE907424C (en) | 1954-03-25 |
Family
ID=25994717
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DES3416D Expired DE907424C (en) | 1941-03-07 | 1941-12-10 | Heat-resistant speaker membrane |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE907424C (en) |
-
1941
- 1941-12-10 DE DES3416D patent/DE907424C/en not_active Expired
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