DE438079C - Device for tensioning sound box membranes, in particular for telephones, loudspeakers, acoustic apparatus, etc. - Google Patents
Device for tensioning sound box membranes, in particular for telephones, loudspeakers, acoustic apparatus, etc.Info
- Publication number
- DE438079C DE438079C DEL61011D DEL0061011D DE438079C DE 438079 C DE438079 C DE 438079C DE L61011 D DEL61011 D DE L61011D DE L0061011 D DEL0061011 D DE L0061011D DE 438079 C DE438079 C DE 438079C
- Authority
- DE
- Germany
- Prior art keywords
- tensioning
- telephones
- loudspeakers
- sound box
- acoustic apparatus
- 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
- H04R7/16—Mounting or tensioning of diaphragms or cones
- H04R7/18—Mounting or tensioning of diaphragms or cones at the periphery
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Diaphragms For Electromechanical Transducers (AREA)
- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
- Telephone Set Structure (AREA)
Description
Einrichtung zum Spannen von Schalldosen-Membranen, insbesondere für Telephone, Lautsprecher, akustische Apparate o. dgl. Die Erfindung betrifft eine Einrichtung zum Spannen von Membranen für Schalldosen, Telephone u. dgl. und kennzeichnet sich dadurch, daß ein federnder Preßring mittels eines an der inneren Fläche des Preßringes angreifenden Spannringes keilförmigen Querschnittes gegen die zu spannende Membran gepreßt wird. Der Preßring, der zur Erzielung einer Federung zweckmäßig geschlitzt ist, könnte jedoch aus mehreren Teilen zusammengesetzt werden.Device for tensioning sound box membranes, in particular for Telephones, loudspeakers, acoustic apparatus or the like. The invention relates to a Device for tensioning membranes for sound boxes, telephones and the like in that a resilient compression ring by means of an on the inner surface of the Press ring engaging clamping ring wedge-shaped cross-section against the to be clamped Membrane is pressed. The press ring, which is useful for achieving suspension is slotted, but could be composed of several parts.
Der Spannring kann an einer durch Schrauben o. dgl. einstellbaren Druckplatte angeordnet sein oder mit Einstellschrauben o. dgl. versehen sein, so daß er selbst die gesamte Druckplatte darstellt.The clamping ring can be adjusted by means of screws or the like Be arranged pressure plate or with adjusting screws o. The like. Be provided so that he himself represents the entire printing plate.
Zum Zwecke, ein eventuelles Aufbiegen der Umbördelung der Membran zu verhüten, kann der umgebördelte Rand an seiner Außenseite durch ein elastisches Widerlager gestützt werden.For the purpose of a possible bending open of the flanging of the membrane to prevent, can the beaded edge through on its outside an elastic abutment can be supported.
Die Einrichtung nach der Erfindung bietet gegenüber anderen Einrichtungen den Vorteil, daß die Spannung der Membran auf einen höheren Grad gesteigert werden kann, ohne daß die Einstellvorrichtung selbst ungleich oder in übermäßig hohem Grade beansprucht wird..The device according to the invention offers over other devices the advantage that the tension of the membrane can be increased to a higher degree can without the adjustment device itself unevenly or to an excessively high degree is claimed ..
Der Erfindungsgegenstand ist auf der Zeichnung in einem Ausführungsbeispiel in senkrechtem Schnitt zur Darstellung gebracht.The subject of the invention is shown in the drawing in an exemplary embodiment shown in vertical section.
Die Membran a ist mit einem umgebördelten Rand b versehen und in bekannter Weise auf der Grundplattec gelagert. Der Preßring v, der zur Erzielung einer Federung bei L oder an anderer geeigneter Stelle ganz oder teilweise geschlitzt sein kann, legt sich mit seinem äußeren Umfang m gegen den inneren Umfang der Umbördelung b. An seiner Innenseite ist der Preßring v zweckmäßig mit der Abschrägung n versehen, gegen welche der Spannring o mit seiner keilförmügen Außenfläche p wirkt.The membrane a is provided with a beaded edge b and is known Way stored on the base plate. The press ring v, to achieve a suspension can be fully or partially slotted at L or at another suitable point, lies with its outer circumference m against the inner circumference of the flange b. On its inside, the press ring v is expediently provided with the bevel n, against which the clamping ring o acts with its wedge-shaped outer surface p.
Der Spannring o kann, wie dargestellt, an einer als Druckplatte ausgebildeten Deckplatte r angeordnet sein. Die Ein- oder Verstellung.des Spannringes und der Druckplatte erfolgt mittels der in geeigneter Anzahl vorgesehenen Einstellschrauben s, t o. dgl., welche in der Grundplattee gelagert sind. Die Druck- und Deckplatter könnte ohne weiteres in Wegfall kommen, sobald die Einstellschrauben unmittelbar gegen den Spannring o wirkend angeordnet werden.The clamping ring o can, as shown, be designed as a pressure plate Cover plate r be arranged. The setting or adjustment of the clamping ring and the The pressure plate is made using the appropriate number of adjusting screws s, t or the like, which are stored in the base plate. The print and cover slips could easily become obsolete as soon as the adjustment screws are immediately applied be arranged acting against the clamping ring o.
Ebenso könnte der Spannring durch einzelne Spannstücke ersetzt werden.The clamping ring could also be replaced by individual clamping pieces.
An dem äußeren Umfäng der Membranumbördelu@ng b ist ein aus elastischem Material, z. B. Fiber o. dgl., bestehendes Widerlager u, welches sich gegen die Deckplatte r stützt, vorgesehen, so daß auch bei starker Beanspruchung der Umbördelung b ein Aufbiegen derselben verhütet wird, ohne daß die in radialer Richtung erfolgende Ausdehnung der Membran bei erfolgtem Spannen verhindert wird.On the outer circumference of the membrane flange b is made of elastic Material, e.g. B. Fiber o. The like., Existing abutment u, which is against the Cover plate r supports, provided, so that the beading is also subject to heavy use b a bending of the same is prevented without taking place in the radial direction Expansion of the membrane is prevented when tensioning has taken place.
Claims (3)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEL61011D DE438079C (en) | 1924-08-22 | 1924-08-22 | Device for tensioning sound box membranes, in particular for telephones, loudspeakers, acoustic apparatus, etc. |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEL61011D DE438079C (en) | 1924-08-22 | 1924-08-22 | Device for tensioning sound box membranes, in particular for telephones, loudspeakers, acoustic apparatus, etc. |
| GB2117724A GB243818A (en) | 1924-09-08 | 1924-09-08 | Improvements in or relating to sound box diaphragms for use in telephones, loud speakers, acoustic apparatus and the like |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE438079C true DE438079C (en) | 1926-12-04 |
Family
ID=10158460
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DEL61011D Expired DE438079C (en) | 1924-08-22 | 1924-08-22 | Device for tensioning sound box membranes, in particular for telephones, loudspeakers, acoustic apparatus, etc. |
Country Status (3)
| Country | Link |
|---|---|
| DE (1) | DE438079C (en) |
| FR (1) | FR600699A (en) |
| GB (1) | GB243818A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2542553A1 (en) * | 1983-03-07 | 1984-09-14 | Thomson Csf | DEVICE FOR RECOVERING A PIEZOELECTRIC DIAPHRAGM, ITS PRODUCTION METHOD AND ELECTROMECHANICAL TRANSDUCER USING SUCH A DEVICE |
-
1924
- 1924-08-22 DE DEL61011D patent/DE438079C/en not_active Expired
- 1924-09-08 GB GB2117724A patent/GB243818A/en not_active Expired
-
1925
- 1925-07-11 FR FR600699D patent/FR600699A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2542553A1 (en) * | 1983-03-07 | 1984-09-14 | Thomson Csf | DEVICE FOR RECOVERING A PIEZOELECTRIC DIAPHRAGM, ITS PRODUCTION METHOD AND ELECTROMECHANICAL TRANSDUCER USING SUCH A DEVICE |
| EP0119897A1 (en) * | 1983-03-07 | 1984-09-26 | Thomson-Csf | Apparatus for holding a piezo-electric diaphragm, method of realizing the same, and an electromechanical transducer using said apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| GB243818A (en) | 1925-12-08 |
| FR600699A (en) | 1926-02-12 |
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