DE7925593U1 - SPEAKER MEMBRANE - Google Patents
SPEAKER MEMBRANEInfo
- Publication number
- DE7925593U1 DE7925593U1 DE19797925593U DE7925593U DE7925593U1 DE 7925593 U1 DE7925593 U1 DE 7925593U1 DE 19797925593 U DE19797925593 U DE 19797925593U DE 7925593 U DE7925593 U DE 7925593U DE 7925593 U1 DE7925593 U1 DE 7925593U1
- Authority
- DE
- Germany
- Prior art keywords
- sound
- emitting part
- plastic
- edge
- rubber
- 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
- 239000012528 membrane Substances 0.000 title claims description 4
- 239000011324 bead Substances 0.000 claims description 9
- 238000002347 injection Methods 0.000 claims description 5
- 239000007924 injection Substances 0.000 claims description 5
- 239000004033 plastic Substances 0.000 claims description 5
- 230000007704 transition Effects 0.000 claims description 3
- 239000002657 fibrous material Substances 0.000 claims description 2
- 239000000463 material Substances 0.000 description 4
- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- 238000004026 adhesive bonding Methods 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 230000001627 detrimental effect Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000001993 wax Substances 0.000 description 1
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
-
- 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
- H04R7/20—Securing diaphragm or cone resiliently to support by flexible material, springs, cords, or strands
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Diaphragms For Electromechanical Transducers (AREA)
Description
DEUTSCHE 3EMPERIT GESELLSCHAFT M.B.H.GERMAN 3EMPERIT GESELLSCHAFT M.B.H.
LautsprechermembranSpeaker cone
Die Erfindung betrifft eine Lautsprechermembran mit einem schallausstrahlenden Teil aus faserigem Werkstoff, vorzugsweise Pappe, und einem an diesen anschließenden, mit einer Sicke versehenen Rand aus Gummi oder Kunststoff zur Einspannung in den Lautsprecherkorb .The invention relates to a loudspeaker diaphragm with a sound-emitting part made of fibrous material, preferably cardboard, and an adjoining edge provided with a bead Rubber or plastic for clamping in the speaker frame.
Die Verbindung der beiden Teile miteinander erfolgt durch Verklebung, wozu der Siekenrand im Bereich der Klebestelle aufgerauht werden muß. Anschließend wird der Kleber sorgfältig und vor allem gleichmäßig aufgetragen. Abgesehen vom relativ hohen Zeitaufwand, der für diese Manipulationen erforderlich ist, liegt einThe two parts are connected to one another by gluing, including the edge of the sieve in the area of the Glue must be roughened. The adhesive is then applied carefully and, above all, evenly. Apart from the relatively high expenditure of time that is required for these manipulations, there is a
besonderer Nachteil in der Einschränkung der Mischungsrezeptur des Sickenrandwerkstoffes infolge der notwendigen Abstimmung auf den Kleber. So dürfen keine für die Haftung nachteiligen stoffe - wie Wachse« UIe etc. -verwendet werden, die die Alterungsbeständigkeit des Siokenrandes entscheidend verbessern wurden.particular disadvantage in the restriction of the mixing recipe of the bead edge material due to the need to match the adhesive. So no for Adhesion detrimental substances - such as waxes, etc. - are used that reduce the aging resistance of the Siokenrandes were to improve decisively.
Als weiterer Nachteil des genannten Standes der Teohnik ist der in der Praxis häufig auftretende ungleichmäßige Klebstoffauftrag zu nennen, zufolge dessen die Schwingungseigenschaften der Membrane negativ beeinflußt werden können«Another disadvantage of the mentioned state of Teohnik is the uneven one that often occurs in practice To call adhesive application, according to which the vibration properties of the membrane negatively influenced can be «
Das der vorliegenden Erfindung zugrunde liegende Ziel liegt in der Beseitigung der genannten Nachtelle durch die Abkehr von der Verklebung. Dies wird dadurch erreicht, daß im Übergangsbereich von schallausstrahlendera Teil und Sickenrand eine durch hohe Anspritzdrlicke des Gummis bzw« Kunststoffes an den Rand des schallausstrahlenden Teiles erzielte Innige Verbindung vorliegt.The aim of the present invention is to eliminate the disadvantages mentioned the move away from gluing. This is achieved by a high injection pressure in the transition area between the sound emitting part and the bead edge of the rubber or plastic to the edge of the sound-emitting part is achieved.
Wie Prüfungsergebnisse gezeigt haben, kann durch das Ineinanderfließen des im Anspritzstadium plastischen Sickenrandwerkstoffes mit den von der Oberfläche abstehenden Faserenden des schallausstrahlenden Teiles die aus dem Stand der Technik bekannte Verklebung in bezug auf die Festigkeit nicht nur ersetzen, sondern sogar noch Übertreffen. Bise exakte Ausführung des Werkzeuges gewährleistet das verrutschungsfreie Festhalten des schallausstrahlenden Teiles sowie das Abdichten gegenüber der Formhöhlung, in welcher der Sickenrand gebildet wird, so daß ein Oberfließen des Sickenrandwerkstoffes vermieden werden kann.As test results have shown, the flowing into one another in the injection stage can cause plastic Bead edge material with the fiber ends of the sound-emitting part protruding from the surface Not only replace the bond known from the prior art with regard to strength, but even surpass it. Up to the exact execution of the tool ensures the non-slip holding of the sound-emitting part as well as the sealing against the mold cavity in which the Bead edge is formed so that overflow of the bead edge material can be avoided.
Als vorteilhafter Anspritzdruck für den Sickenrandwerkstoff zur Erzielung einer optimalen Verbindung mit dem schallausstrahlenden Teil liegt bei etwa 400 bis 600 bar.As an advantageous injection pressure for the bead edge material to achieve an optimal connection with the sound-emitting part is about 400 to 600 bar.
Im folgenden wird die Erfindung anhand einer Zeichnung beispielhaft näher erläutert:In the following, the invention is explained in more detail using a drawing:
Die im Querschnitt dargestellte Lautsprechermembrane besteht aus dem Sickenrand 2 und dem schallausstrahlenden Teil 1. Im Übergangsbereich 3 der beiden Teile erfolgt die durch einen hohen Anspritzdruck erreichte innige Verbindung.The loudspeaker membrane shown in cross section consists of the bead edge 2 and the sound-emitting one Part 1. In the transition area 3 of the two parts, the one achieved by a high injection pressure takes place intimate connection.
Claims (1)
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19797925593U DE7925593U1 (en) | 1979-09-10 | 1979-09-10 | SPEAKER MEMBRANE |
| GB8028947A GB2056817B (en) | 1979-09-10 | 1980-09-08 | Loudspeaker membrane |
| IT8024556A IT1209348B (en) | 1979-09-10 | 1980-09-09 | SPEAKER MEMBRANE. |
| FR8019466A FR2465386A1 (en) | 1979-09-10 | 1980-09-09 | MEMBRANE FOR SPEAKER |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19797925593U DE7925593U1 (en) | 1979-09-10 | 1979-09-10 | SPEAKER MEMBRANE |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE7925593U1 true DE7925593U1 (en) | 1980-02-28 |
Family
ID=6707238
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19797925593U Expired DE7925593U1 (en) | 1979-09-10 | 1979-09-10 | SPEAKER MEMBRANE |
Country Status (4)
| Country | Link |
|---|---|
| DE (1) | DE7925593U1 (en) |
| FR (1) | FR2465386A1 (en) |
| GB (1) | GB2056817B (en) |
| IT (1) | IT1209348B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2522912B1 (en) * | 1982-03-03 | 1986-08-14 | Audax | PERIPHERAL SUSPENSION IN ELASTOMER OF THE MEMBRANE OF AN ELECTROACOUSTIC TRANSDUCER |
| JPH01162990U (en) * | 1988-04-30 | 1989-11-14 | ||
| EP0492914A3 (en) * | 1990-12-20 | 1992-10-21 | Leach, Patrick Arthur | Loudspeaker cone and surround assembly |
| DE69301151T2 (en) * | 1992-01-15 | 1996-05-09 | David Ian Huntingdon Cambridgeshire Leach | Method and device for producing a loudspeaker cone and a bead arrangement |
| JPH0715793A (en) * | 1993-06-28 | 1995-01-17 | Sony Corp | Diaphragm for speaker and its molding method |
| GB9621644D0 (en) * | 1997-10-14 | 1996-12-11 | Kerwin Colin J | Cistern bag |
| BR9912459A (en) * | 1998-07-29 | 2001-04-17 | New Transducers Ltd | Speaker drive unit that has a resonant panel-shaped part |
-
1979
- 1979-09-10 DE DE19797925593U patent/DE7925593U1/en not_active Expired
-
1980
- 1980-09-08 GB GB8028947A patent/GB2056817B/en not_active Expired
- 1980-09-09 IT IT8024556A patent/IT1209348B/en active
- 1980-09-09 FR FR8019466A patent/FR2465386A1/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| GB2056817A (en) | 1981-03-18 |
| FR2465386A1 (en) | 1981-03-20 |
| IT8024556A0 (en) | 1980-09-09 |
| IT1209348B (en) | 1989-07-16 |
| FR2465386B3 (en) | 1982-06-18 |
| GB2056817B (en) | 1983-11-23 |
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