DE8629084U1 - Loudspeaker enclosures made of round plastic hollow bodies - Google Patents
Loudspeaker enclosures made of round plastic hollow bodiesInfo
- Publication number
- DE8629084U1 DE8629084U1 DE19868629084 DE8629084U DE8629084U1 DE 8629084 U1 DE8629084 U1 DE 8629084U1 DE 19868629084 DE19868629084 DE 19868629084 DE 8629084 U DE8629084 U DE 8629084U DE 8629084 U1 DE8629084 U1 DE 8629084U1
- Authority
- DE
- Germany
- Prior art keywords
- round
- hollow bodies
- loudspeaker
- plastic hollow
- round plastic
- 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
- 239000004033 plastic Substances 0.000 title claims description 6
- 229920003023 plastic Polymers 0.000 title claims description 6
- 239000000463 material Substances 0.000 claims description 5
- 229910052500 inorganic mineral Inorganic materials 0.000 claims description 2
- 238000009434 installation Methods 0.000 claims description 2
- 239000011707 mineral Substances 0.000 claims description 2
- 229920001169 thermoplastic Polymers 0.000 claims description 2
- 239000004416 thermosoftening plastic Substances 0.000 claims description 2
- 239000004698 Polyethylene Substances 0.000 description 4
- 239000010426 asphalt Substances 0.000 description 4
- -1 polyethylene Polymers 0.000 description 4
- 229920000573 polyethylene Polymers 0.000 description 4
- 239000011093 chipboard Substances 0.000 description 3
- 238000013016 damping Methods 0.000 description 2
- 230000011514 reflex Effects 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000004579 marble Substances 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 239000011505 plaster Substances 0.000 description 1
- 239000011120 plywood Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000003351 stiffener 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
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/02—Casings; Cabinets ; Supports therefor; Mountings therein
-
- 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
- H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
- H04R1/22—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only
- H04R1/26—Spatial arrangements of separate transducers responsive to two or more frequency ranges
-
- 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
- H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
- H04R1/22—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only
- H04R1/28—Transducer mountings or enclosures modified by provision of mechanical or acoustic impedances, e.g. resonator, damping means
- H04R1/2803—Transducer mountings or enclosures modified by provision of mechanical or acoustic impedances, e.g. resonator, damping means for loudspeaker transducers
-
- 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
- H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
- H04R1/22—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only
- H04R1/28—Transducer mountings or enclosures modified by provision of mechanical or acoustic impedances, e.g. resonator, damping means
- H04R1/2807—Enclosures comprising vibrating or resonating arrangements
- H04R1/2815—Enclosures comprising vibrating or resonating arrangements of the bass reflex type
- H04R1/2819—Enclosures comprising vibrating or resonating arrangements of the bass reflex type for loudspeaker transducers
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Health & Medical Sciences (AREA)
- Otolaryngology (AREA)
- Details Of Audible-Bandwidth Transducers (AREA)
Description
Aktenzeichen G 8629084.3/ ANR 3140245Reference number G 8629084.3/ ANR 3140245
Hans MühlenbeinHans Mühlenbein
Lautsprechergehäuse aus runden KunststoffhohlkörpernLoudspeaker enclosures made of round plastic hollow bodies
Die Erfindung betrifft den Bau von Lautsprechergehäusen aus Bauteilen mit optimalen akustischen Eigenschaften. Die handelsüblichen Lautsprechergehäuse sind mehreckige Körper,die aus Spanholz, Sperrholz oder Mamor hergestellt sind. Obwohl durch die Verwendung dieser Materialien zwangsläufig Gebilde mit planen Wänden entstehen, die im Gegensatz zu runden Körpern eine Reihe von akustischen Nachteilen haben, wie Eigenschwingungen, Beugungen und Interferenzen des Scha.Us an den Außenkanten, nimmt mi*n diese mangels alternativer Möglichkeiten in Kauf. Auch findet man sich damit ab, daß zur Schalldämmung und zur Unterdrückung von Biegeschwingungen massive Wände oder entsprechende Versteifungen erforderlich sind.The invention relates to the construction of loudspeaker enclosures from components with optimal acoustic properties. Commercially available loudspeaker enclosures are polygonal bodies made of chipboard, plywood or marble. Although the use of these materials inevitably results in structures with flat walls, which, in contrast to round bodies, have a number of acoustic disadvantages, such as natural vibrations, diffraction and interference of the sound at the outer edges, we accept this due to the lack of alternative options. We also accept that solid walls or corresponding stiffeners are required for sound insulation and to suppress bending vibrations.
Runde Lautsprechergehäuse haben trotz der akustischen Vorteile in den Dimensionen, die für eine gute Bass- und Mittenwiedergabe erforderlich sind, praktisch keine Bedeutung auf dem HiFi-Markt erlangen können. Es fehlen günstige Bauelemente.Despite the acoustic advantages in terms of the dimensions required for good bass and midrange reproduction, round loudspeaker cabinets have had virtually no significance on the HiFi market. There is a lack of inexpensive components.
Es konnte nun festgestellt werden, daß sich Hohlkörper aus Duro-oder Thermoplasten unerwarteterweise auch schon relativ dünnwandig, vorzüglich als Lautsprechergehäuse eignen. Damit sind vorzugsweise industriell gefertigte Hohlkugeln, ovale Körper oder auch Rohrabschnitte gemeint, die nach entsprechender Bearbeitung wie sie sind oder mit Auskleidungen oder Umkleidungen aus organischen und/oder mineralischen Stoffen zum Einbau von Lautsprecherchassis geeignet sind.It has now been found that hollow bodies made of duroplastics or thermoplastics, even with relatively thin walls, are unexpectedly ideal for use as loudspeaker housings. This primarily refers to industrially manufactured hollow spheres, oval bodies or pipe sections which, after appropriate processing, are suitable for the installation of loudspeaker chassis as they are or with linings or coverings made of organic and/or mineral materials.
Diese Erkenntnis ermöglicht es, schon mit geringem technischen Aufwand akustisch weitgehend neutrale Tief- und Mitteltonlautsprechergehäuse herzustellen, die sich in offener oder geschlossener Bauweise mit Satelliten zu VoIlautSprechern kombinieren lassen.This knowledge makes it possible to produce acoustically largely neutral bass and midrange loudspeaker enclosures with little technical effort, which can be combined with satellites in an open or closed design to form full-range loudspeakers.
Aktenzeichen G 86Z90jB/f:3 .: 'Reference number G 86Z90jB/f:3 .: '
Ausführungsbeispiele:Examples of implementation:
1) Geschlossenes Gehäuse für einen dynamischen Tieftonlautsprecheri 1) Closed housing for a dynamic woofer
Hohlkugel aus PVC, Durchmesser 39o mm, Wandstärke Io mm
Innenauskleidung 5 nun Bitumen
Dämpfungsmaterial Spezialwatte
Zwischenring aus SpanholzHollow sphere made of PVC, diameter 39o mm, wall thickness 1o mm, inner lining 5 mm bitumen
Damping material special wadding
Intermediate ring made of chipboard
2) Bassreflexgehäuse ( offene Bauweise ) für einen dynamischen Tief-Mitteltonlautsprecher:2) Bass reflex housing (open design) for a dynamic bass-midrange speaker:
Hohlkugel aus Polyäthylen, Durchmesser 25o mm,Wandstärke 12mm
Bassreflexrohr
Innenauskleidung 5 mm BitumenHollow sphere made of polyethylene, diameter 25o mm, wall thickness 12mm bass reflex tube
Inner lining 5 mm bitumen
3) Geschlossenes Gehäuse für einen dynamischen Mitteltonlautsprecher: 3) Closed enclosure for a dynamic midrange speaker:
Hohlkugel aus PVC, Durchmesser 25o mm, Wandstärke 5 mm Innenauskleidung ca. 15 mm auf GipsbasisHollow sphere made of PVC, diameter 25o mm, wall thickness 5 mm, inner lining approx. 15 mm on plaster base
4) Geschlossenes Gehäuse für eine Tief- Mitteltonlautsprecherkombination, System Kugel in Kugel:4) Closed housing for a bass-midrange speaker combination, ball in ball system:
Hohlkugel aus Polyäthylen, Durchmesser 23o mm, angeschweißtes Polyäthylenrohr zur Aufnahme eines Mitteltonlautsprechers,
Wandstärken 7 mm
Innenauskleidung 5 mm BitumenHollow sphere made of polyethylene, diameter 23o mm, welded polyethylene tube for holding a midrange loudspeaker, wall thickness 7 mm
Inner lining 5 mm bitumen
eingebaut in eine Hohlkugel aus Polyäthylen vom Durchmesser 39o mm,Wandstärke Io mm
Innenauskleidung 5 mm Bitumen
Dämpfungsmaterial Spezialwatte
Zwischenring aus Spanholzbuilt into a hollow polyethylene sphere of diameter 39o mm, wall thickness 1o mm
Inner lining 5 mm bitumen
Damping material special wadding
Intermediate ring made of chipboard
5) Gehäuse zur Aufnahme eines Tief- und Mitteltonlautsprechers bestehend aus den Hohlkugeln der Beispiele 1 und 3, mit Innenauskleidung auf Zementbasis und Kombination mit Hochtonsatelliten. 5) Housing for accommodating a bass and midrange loudspeaker consisting of the hollow spheres of examples 1 and 3, with interior lining based on cement and combination with tweeter satellites.
Aktenzeichen G 8629o84.3Reference number G 8629o84.3
Bezugszeichenliste_zu_den_ZeichnungenList of reference symbols for the drawings
1 = Tieftonlautsprecher1 = woofer
2 = Mitteltonlautsprecher2 = Midrange speaker
3 = Hochtöner3 = Tweeter
4 = Superhochtöner4 = Super tweeter
5 = Tief- Mitteltonlautsprecher5 = woofer-midrange speaker
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19868629084 DE8629084U1 (en) | 1986-10-31 | 1986-10-31 | Loudspeaker enclosures made of round plastic hollow bodies |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19868629084 DE8629084U1 (en) | 1986-10-31 | 1986-10-31 | Loudspeaker enclosures made of round plastic hollow bodies |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE8629084U1 true DE8629084U1 (en) | 1987-04-23 |
Family
ID=6799767
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19868629084 Expired DE8629084U1 (en) | 1986-10-31 | 1986-10-31 | Loudspeaker enclosures made of round plastic hollow bodies |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE8629084U1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4224811A1 (en) * | 1992-07-22 | 1994-01-27 | Sen Franz Nemec | Spherical loudspeaker box turned from bonded wooden block - bonds wooden hemispherical half shells turned inside and out to form hollow spherical box into which loudspeaker can be mounted |
| WO1998051121A1 (en) * | 1997-05-02 | 1998-11-12 | B & W Loudspeakers Limited | Loudspeaker systems |
| FR2967860A1 (en) * | 2010-11-23 | 2012-05-25 | Daniel Dumay | HIGH LOYALITY ELECTRO-ACOUSTIC SPEAKER AND METHOD FOR MANUFACTURING THE SAME |
-
1986
- 1986-10-31 DE DE19868629084 patent/DE8629084U1/en not_active Expired
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4224811A1 (en) * | 1992-07-22 | 1994-01-27 | Sen Franz Nemec | Spherical loudspeaker box turned from bonded wooden block - bonds wooden hemispherical half shells turned inside and out to form hollow spherical box into which loudspeaker can be mounted |
| WO1998051121A1 (en) * | 1997-05-02 | 1998-11-12 | B & W Loudspeakers Limited | Loudspeaker systems |
| US6377696B1 (en) | 1997-05-02 | 2002-04-23 | B & W Loudspeakers Limited | Loudspeaker systems |
| FR2967860A1 (en) * | 2010-11-23 | 2012-05-25 | Daniel Dumay | HIGH LOYALITY ELECTRO-ACOUSTIC SPEAKER AND METHOD FOR MANUFACTURING THE SAME |
| WO2012069708A1 (en) * | 2010-11-23 | 2012-05-31 | Daniel Dumay | High fidelty electro-acoustic enclosure and method of manufacture |
| US9210490B2 (en) | 2010-11-23 | 2015-12-08 | Daniel Dumay | High fidelty electro-acoustic enclosure and method of manufacture |
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