EP0433704A2 - Loudspeaker housing case - Google Patents

Loudspeaker housing case Download PDF

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Publication number
EP0433704A2
EP0433704A2 EP90122510A EP90122510A EP0433704A2 EP 0433704 A2 EP0433704 A2 EP 0433704A2 EP 90122510 A EP90122510 A EP 90122510A EP 90122510 A EP90122510 A EP 90122510A EP 0433704 A2 EP0433704 A2 EP 0433704A2
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EP
European Patent Office
Prior art keywords
housing parts
adhesive
housing
loudspeaker
case
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.)
Granted
Application number
EP90122510A
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German (de)
French (fr)
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EP0433704A3 (en
EP0433704B1 (en
Inventor
Ulrich Kizak
Johann Lang
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nokia Deutschland GmbH
Original Assignee
Nokia Unterhaltungselektronik Deutschland GmbH
Nokia Deutschland GmbH
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Application filed by Nokia Unterhaltungselektronik Deutschland GmbH, Nokia Deutschland GmbH filed Critical Nokia Unterhaltungselektronik Deutschland GmbH
Publication of EP0433704A2 publication Critical patent/EP0433704A2/en
Publication of EP0433704A3 publication Critical patent/EP0433704A3/en
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Publication of EP0433704B1 publication Critical patent/EP0433704B1/en
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    • 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
    • H04R1/021—Casings; Cabinets ; Supports therefor; Mountings therein incorporating only one transducer
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R31/00—Apparatus or processes specially adapted for the manufacture of transducers or diaphragms therefor
    • H04R31/006—Interconnection of transducer parts

Definitions

  • the invention relates to a multi-part - in particular two-part - housing for receiving speakers.
  • an elastic rubber seal is arranged in the manufacture of high-quality loudspeaker receptacle housings before the mechanical connection between the mutually facing edges of the housing parts.
  • This measure has the effect that, due to the effect of the rubber seal which compensates for the manufacturing tolerances, the force effects of the mechanical connecting elements for producing a continuous and tight connection of the housing parts are less. This also reduces the tension in the housing parts and improves the auditory impression of the loudspeaker box.
  • the invention has for its object to provide a multi-part loudspeaker housing, the sound behavior is further improved.
  • the object is achieved in that the housing parts forming the loudspeaker receptacle housing are glued to one another in a floating manner by an adhesive with a minimum layer thickness of 0.5 mm, a hardness of at most 60 Shore A and a minimum elongation at break of 400% being used to continuously glue the housings on their mutually facing edges . This ensures that manufacturing tolerances on the housing edges are compensated for and, moreover, the housing parts thus arranged are completely tension-free.
  • Claim 3 specifies a method for producing a glued loudspeaker housing.
  • the adhesive By applying the adhesive with a layer thickness that exceeds the desired minimum adhesive thickness between the housing parts in the final state and by pressing the housing parts together, at least during the curing time of the adhesive, the adhesive is distributed particularly well between the housing parts and almost the entire width of the edges uses the housing parts as an adhesive surface.
  • Figure 1 shows a sectional view of a two-part loudspeaker receptacle housing with the loudspeaker inserted.
  • Figure 2 shows a section of two housing parts at their interface in detail.
  • Figure 3 shows a curing and shipping carton for glued loudspeaker housing.
  • Figure 4 shows a further section of two housing parts at their interface in detail.
  • FIG. 1 shows a loudspeaker receptacle housing 5 which has two housing parts 6, 7 and in which a loudspeaker 8 is inserted.
  • the mutually facing ends 9, 10 of the housing parts 6, 7 are designed as flanges 11, 12.
  • the plastic bead 15 is formed from a Sika PUR adhesive with the manufacturer's name SikaTack-Instant and has a hardness of 50 Shore A and an elongation at break of 600%.
  • the thickness (D K ) of the adhesive bead 15 between the flange surfaces 13, 14 is 0.5 mm in the exemplary embodiment shown.
  • Holding clips 16 are pushed onto the flanges 11, 12 in the direction of the arrow during the curing time of the adhesive bead 15.
  • the middle piece 17 of such a holding clip 16 the width (B) of which corresponds to the thickness (D K ) of the adhesive bead 15, plunges into the gap 18 between the flange surfaces 13, 14 which is free of adhesive, while the resilient clip ends 19 extend the flange 11 , 12 press against the center piece 17.
  • the flange 12 has a blind hole 20 on its flange surface 14, into which a spacer 21 arranged on the flange surface 13 of the flange 11 engages and hits the bottom 22 of the blind hole 20.
  • the overall length (B L ) of the spacer 21 corresponds to the depth (S T ) of the blind hole 20 plus the desired minimum adhesive thickness (D K ) of the plastic bead 15 which bonds the housing parts 6.7.
  • the diameter (D S ) of the blind hole 20 exceeds the diameter ( D A ) of the spacer 21 is scarce.
  • FIG. 3 shows a simple production example for realizing a glued loudspeaker receptacle housing 5.
  • a two-part curing and transport box 23 made of molded plastic is used.
  • the lower part 24 of the curing and transport box 23 has a receiving recess 25 into which the housing part 6 is inserted.
  • the flange 11 of the housing part 6 then lies on the head side 26 of the lower part 24.
  • the flange surface 13 is then provided with an adhesive bead 15.
  • a housing part 7, already equipped with a loudspeaker 5, with the flange surface 14 is placed on the plastic bead 15.
  • the spacers 21 and blind holes 20 located on the flange surfaces 13, 14 and described above in FIG.
  • the upper part 27 of the receiving and transport carton 23, which also contains a receiving recess 28, is then placed over the part of the loudspeaker receiving housing 5 protruding from the lower part 24.
  • the upper part 27 Since the depth (T O ) of the receiving recess 28 of the upper part 27 falls just short of the height (H A ) of the part of the loudspeaker receiving housing 5 protruding from the lower part 24, the upper part 27 is pressed onto the lower part 24 by force (P) along the direction of the arrow, so that the spacers 21 are placed on the bottom 22 of the blind hole 20.
  • the force (P) required until the adhesive has hardened can be replaced by wrapping the upper part 27 and the lower part 24 of the receiving and transport carton 23 with an adhesive strip (not shown) perpendicularly to their mutually facing edges during only a brief force (P) will.
  • FIG. 4 shows another interface between two housing parts 6, 7 in Shown in detail, a deviation from FIG. 2, a self-tapping screw 29 is only guided through the flange 11 and the spacer 21 into a further blind hole 30 located at the bottom 22 of the blind hole 20.
  • the force exerted by the screw 29 causes the two flange surfaces 13, 14 to be pressed against one another at least during the curing time of the adhesive.
  • the screws 29 can be removed or can also remain in the flanges 11, 12, since it has been shown in comparison to removed screws 29 that up to a maximum of 4 screws 29 at the seams of two housing parts 6, 7 do not impair the auditory impression of the loudspeaker box .
  • flange surfaces 13, 14 in each of the exemplary embodiments discussed above can be pretreated with a primer for better adhesion of the adhesive bead 15.

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Details Of Audible-Bandwidth Transducers (AREA)

Abstract

According to the current state of the art, if the loudspeaker housing case is formed by a plurality of case parts, the case parts are connected to one another with or without interposed sealing ring by a multiplicity of catches or screws. Since this type of connection causes local stresses, which in turn have an adverse effect on the sound characteristics of such a loudspeaker housing case, it is proposed according to the invention to bond the respective case parts adhesively to one another in a floating manner. Serving as bonding medium in this case is an adhesive having a minimum layer thickness of 0.5 mm, as well as a hardness of max. 60 Shore A and a minimum elongation at break of 400 %. To set the respectively desired adhesive thickness and to prevent radial displacements of the case parts during setting of the adhesive, fixing aids are arranged on the mutually facing edges of the case parts. <IMAGE>

Description

Technisches GebietTechnical field

Die Erfindung betrifft ein mehrteiliges - insbesondere zweiteiliges - Gehäuse zur Aufnahme von Lautsprechern.The invention relates to a multi-part - in particular two-part - housing for receiving speakers.

Stand der TechnikState of the art

Seit geraumer Zeit besteht in der Lautsprechertechnik das Problem, mehrteilige Lautsprechergehäuse so miteinander zu verbinden, daß das Lautsprechergehäuse trotz der Mehrteiligkeit keinen oder nur einen vernachlässigungsfähigen Einfluß auf das Wiedergabeverhalten des Lautsprechers ausübt. Derartig nachteilige Eigenschaften mehrteiliger Lautsprechergehäuse rühren daher, daß die Gehäuseteile im statischen Zustand lokale Verspannungen aufweisen, die im dynamischen Zustand den Höreindruck der Lautsprecherbox beeinträchtigen. Diese Verspannungen haben ihre Ursache darin, daß die Gehäuseteile an ihren einander zugewandten Kanten nach wirtschaftlicher Betrachtungsweise unvermeidbare Fertigungstoleranzen aufweisen, zu deren Überwindung und Erzielung einer durchgängig planen Verbindung der Gehäuseteile an ihren einander zugewandten Kanten eine Vielzahl von Schrauben oder Schnappen als mechanisch wirkende Verbindungselement eingesetzt werden. Aus diesem Grunde wird bei der Fertigung hochwertiger Lautsprecheraufnahmegehäuse vor dem mechanischen Verbinden zwischen den einander zugewandten Kanten der Gehäuseteile eine elastische Gummidichtung angeordnet. Diese Maßnahme bewirkt, daß wegen der die Fertigungstoleranzen ausgleichenden Wirkung der Gummidichtung die Kraftwirkungen der mechanischen Verbindungselemente zur Erzeugung einer durchgängigen und dichten Verbindung der Gehäuseteile geringer ausfallen. Hierdurch werden auch die Verspannungen der Gehäuseteile reduziert und der Höreindruck der Lautsprecherbox verbessert. Der Erfindung liegt die Aufgabe zugrunde, ein mehrteiliges Lautsprecheraufnahmegehäuse zu schaffen, dessen Klangverhalten noch weiter verbessert ist.For some time now there has been the problem in loudspeaker technology of connecting multi-part loudspeaker housings in such a way that the loudspeaker housing has no or only a negligible influence on the reproduction behavior of the loudspeaker despite the multipart structure. Such disadvantageous properties of multi-part loudspeaker housings result from the fact that the housing parts in the static state have local stresses which, in the dynamic state, impair the auditory impression of the loudspeaker box. This tension is due to the fact that the housing parts on their mutually facing edges have inevitable manufacturing tolerances from an economic point of view, to overcome and achieve a consistently flat connection of the housing parts on their mutually facing edges a variety of screws or snaps are used as a mechanically acting connecting element. For this reason, an elastic rubber seal is arranged in the manufacture of high-quality loudspeaker receptacle housings before the mechanical connection between the mutually facing edges of the housing parts. This measure has the effect that, due to the effect of the rubber seal which compensates for the manufacturing tolerances, the force effects of the mechanical connecting elements for producing a continuous and tight connection of the housing parts are less. This also reduces the tension in the housing parts and improves the auditory impression of the loudspeaker box. The invention has for its object to provide a multi-part loudspeaker housing, the sound behavior is further improved.

Darstellung der Erfindung:Presentation of the invention:

Die Aufgabe wird dadurch gelöst, daß die das Lautsprecheraufnahmegehäuse bildenden Gehäuseteile miteinander schwimmend verklebt sind, indem ein Klebstoff mit einer Mindestschichtdicke von 0,5 mm einer Härte von maximal 60 Shore A und einer Mindestbruchdehnung von 400 % die Gehäuse an ihren einander zugewandten Kanten durchgängig verklebt. Hierdurch wird sichergestellt, daß Fertigungstoleranzen an den Gehäusekanten ausgeglichen werden und überdies die so verfügten Gehäuseteile völlig verspannungsfrei aufeinanderstehen.The object is achieved in that the housing parts forming the loudspeaker receptacle housing are glued to one another in a floating manner by an adhesive with a minimum layer thickness of 0.5 mm, a hardness of at most 60 Shore A and a minimum elongation at break of 400% being used to continuously glue the housings on their mutually facing edges . This ensures that manufacturing tolerances on the housing edges are compensated for and, moreover, the housing parts thus arranged are completely tension-free.

Als besonders vorteilhaft erweist sich nach der Erfindung der Umstand, daß auf ein aufwendiges mechanisches Verbinden der Gehäuseteile verzichtet werden kann und eine Lagerhaltung für elastische Gummidichtungen gänzlich entfällt.According to the invention, the fact that a complicated mechanical connection of the housing parts can be dispensed with and storage for elastic rubber seals is completely eliminated proves to be particularly advantageous.

Eine vorteilhafte Weiterbildung der Erfindung ist in Unteranspruch 2 ausgeführt. Durch die Anordnung von Fixierhilfen an den einander zugewandten Kanten der Gehäuseteile wird nicht nur ein einfaches Zusammensetzen der Gehäuseteile und eine Verhinderung von Radialverschiebungen der Gehäuseteile während des Durchhärten des Klebstoffes sichergestellt, sondern auch durch die Baulänge der Fixierhilfen die jeweils gewünschte Mindestklebstoffdicke zwischen den Gehäuseteilen gewährleistet.An advantageous development of the invention is set out in dependent claim 2. The arrangement of fixing aids on the mutually facing edges of the housing parts not only ensures simple assembly of the housing parts and a prevention of radial displacements of the housing parts during the curing of the adhesive, but also ensures the desired minimum adhesive thickness between the housing parts due to the overall length of the fixing aids.

Unteranspruch 3 gibt ein Verfahren zur Herstellung eines geklebten Lautsprecheraufnahmegehäuses an. Durch den Auftrag des Klebers mit einer die jeweils gewünschte Mindestklebstoffdicke zwischen den Gehäuseteilen im Endzustand übersteigenden Schichtdicke und durch das Aufeinanderpressen der Gehäuseteile zumindest während der Durchhärtzeit des Klebers wird erreicht, daß sich der Klebstoff zwischen den Gehäuseteilen besonders gut verteilt und nahezu die gesamte Breite der Kanten der Gehäuseteile als Klebefläche ausnutzt.Claim 3 specifies a method for producing a glued loudspeaker housing. By applying the adhesive with a layer thickness that exceeds the desired minimum adhesive thickness between the housing parts in the final state and by pressing the housing parts together, at least during the curing time of the adhesive, the adhesive is distributed particularly well between the housing parts and almost the entire width of the edges uses the housing parts as an adhesive surface.

Kurze Beschreibung der Figuren:Brief description of the figures:

Figur 1 zeigt eine Schnittdarstellung eines zweiteiligen Lautsprecheraufnahmegehäuses mit eingesetztem Lautsprecher.Figure 1 shows a sectional view of a two-part loudspeaker receptacle housing with the loudspeaker inserted.

Figur 2 zeigt einen Schnitt zweier Gehäuseteile an ihrer Nahtstelle im Detail.Figure 2 shows a section of two housing parts at their interface in detail.

Figur 3 zeigt einen Aushärte- und Transportkarton für geklebte Lautsprecheraufnahmegehäuse.Figure 3 shows a curing and shipping carton for glued loudspeaker housing.

Figur 4 zeigt einen weiteren Schnitt zweier Gehäuseteile an ihrer Nahtstelle im Detail.Figure 4 shows a further section of two housing parts at their interface in detail.

Wege zur Ausführung der ErfindungWays of Carrying Out the Invention

In Figur 1 ist ein Lautsprecheraufnahmegehäuse 5 dargestellt, welches zwei Gehäuseteile 6,7 aufweist und in welches ein Lautsprecher 8 eingesetzt ist. Die einander zugewandten Enden 9,10 der Gehäuseteile 6,7 sind als Flansche 11,12 ausgebildet. Zwischen den von den Flanschen 11,12 gebildeten Flanschflächen 13,14 ist eine Klebstoffwulst 15 angeordnet, welche die beiden Gehäuseteile 6,7 durchgängig miteinander verklebt. Die Kunststoffwulst 15 ist aus einem PUR-Klebstoff der Firma Sika mit der Herstellerbezeichnung SikaTack-Instant gebildet und weist eine Härte von 50 Shore A und eine Bruchdehnung von 600 % auf. Die Dicke (DK) der Klebstoffwulst 15 zwischen den Flanschflächen 13,14 beträgt im dargestellten Ausführungsbeispiel 0,5 mm. Halteklammern 16 sind während der Durchhärtezeit der Klebstoffwulst 15 längs der Pfeilrichtung auf die Flansche 11,12 aufgeschoben. Das Mittelstück 17 einer derartigen Halteklammer 16, dessen Breite (B) der Dicke (DK) der Klebstoffwulst 15 entspricht, taucht dabei in den vom Klebstoff freien Spalt 18 zwischen den Flanschflächen 13,14 ein, während die federnd ausgebildeten Klammerenden 19 die Flansch 11,12 gegen das Mittelstück 17 drücken.1 shows a loudspeaker receptacle housing 5 which has two housing parts 6, 7 and in which a loudspeaker 8 is inserted. The mutually facing ends 9, 10 of the housing parts 6, 7 are designed as flanges 11, 12. Arranged between the flange surfaces 13, 14 formed by the flanges 11, 12 is an adhesive bead 15, which continuously glues the two housing parts 6, 7 to one another. The plastic bead 15 is formed from a Sika PUR adhesive with the manufacturer's name SikaTack-Instant and has a hardness of 50 Shore A and an elongation at break of 600%. The thickness (D K ) of the adhesive bead 15 between the flange surfaces 13, 14 is 0.5 mm in the exemplary embodiment shown. Holding clips 16 are pushed onto the flanges 11, 12 in the direction of the arrow during the curing time of the adhesive bead 15. The middle piece 17 of such a holding clip 16, the width (B) of which corresponds to the thickness (D K ) of the adhesive bead 15, plunges into the gap 18 between the flange surfaces 13, 14 which is free of adhesive, while the resilient clip ends 19 extend the flange 11 , 12 press against the center piece 17.

In Figur 2 ist eine Nahtstelle zweier Gehäuseteile 6,7 im Detail dargestellt. In Abweichung zu Figur 1 weist der Flansch 12 an seiner Flanschfläche 14 ein Sackloch 20 auf, in welches ein an der Flanschfläche 13 des Flansches 11 angeordnete Abstandshalter 21 eingreift und auf dem Boden 22 des Sacklochs 20 aufstößt. Die Baulänge (BL) des Abstandshalters 21 entspricht der Tiefe (ST) des Sackloches 20 plus der gewünschten Mindestklebstoffdicke (DK) der die Gehäuseteile 6,7 verklebenden Kunststoffwulst 15. Der Durchmesser (DS) des Sackloches 20 übersteigt den Durchmesser (DA) des Abstandshalters 21 knapp.A seam of two housing parts 6, 7 is shown in detail in FIG. In a departure from FIG. 1, the flange 12 has a blind hole 20 on its flange surface 14, into which a spacer 21 arranged on the flange surface 13 of the flange 11 engages and hits the bottom 22 of the blind hole 20. The overall length (B L ) of the spacer 21 corresponds to the depth (S T ) of the blind hole 20 plus the desired minimum adhesive thickness (D K ) of the plastic bead 15 which bonds the housing parts 6.7. The diameter (D S ) of the blind hole 20 exceeds the diameter ( D A ) of the spacer 21 is scarce.

In Figur 3 ist ein einfaches Herstellungsbeispiel zur Realisierung eines geklebten Lautsprecheraufnahmegehäuses 5 veranschaulicht. Dazu wird ein zweiteiliger Aushärte- und Transportkarton 23 aus Formkunststoff verwendet. Das Unterteil 24 des Aushärte- und Transportkartons 23 weist eine Aufnahmevertiefung 25 auf, in die das Gehäuseteil 6 eingesetzt wird. Der Flansch 11 des Gehäuseteils 6 liegt hiernach auf der Kopfseite 26 des Unterteils 24 auf. Sodann wird die Flanschfläche 13 mit einer Klebstoffwulst 15 versehen. Im nächsten Arbeitsschritt wird ein bereits mit einem Lautsprecher 5 bestückte Gehäuseteil 7 mit der Flanschfläche 14 auf die Kunststoffwulst 15 aufgesetzt. Die an den Flanschflächen 13,14 befindlichen und oben in Figur 2 beschriebenen Abstandshalter 21 und Sacklöcher 20 gewährleisten dabei ein genaues Zentrieren der Gehäuseteile 6,7 aufeinander und stellen sicher, daß die Klebstoffwulst 15 nicht etwa durch das Gewicht des Gehäuseteils 7 und des eingesetzten Lautsprechers 8 unter die gewünschte Mindestklebstoffdicke zusammengedrückt wird. Das Oberteil 27 des Aufnahme- und Transportkartons 23, welches ebenfalls eine Aufnahmevertiefung 28 enthält, wird sodann über das aus dem Unterteil 24 herausragende Teil des Lautsprecheraufnahmegehäuses 5 gestülpt. Da die Tiefe (TO) der Aufnahmevertiefung 28 des Oberteils 27 die Höhe (HA) des aus dem Unterteil 24 herausragenden Teils des Lautsprecheraufnahmegehäuses 5 knapp unterschreitet, wird durch Krafteinwirkung (P) längs der Pfeilrichtung das Oberteil 27 auf das Unterteil 24 gedrückt, so daß die Abstandshalter 21 auf dem Boden 22 des Sackloches 20 aufsetzen. Die bis zur Durchhärtung des Klebstoffs erforderliche Krafteinwirkung (P) läßt sich dadurch ersetzen, daß das Oberteil 27 und das Unterteil 24 des Aufnahme- und Transportkartons 23 während einer nur kurzzeitigen Kraftwirkung (P) senkrecht zu ihren einander zugewandten Kanten mit einem nicht dargestellten Klebestreifens umwickelt werden.FIG. 3 shows a simple production example for realizing a glued loudspeaker receptacle housing 5. For this purpose, a two-part curing and transport box 23 made of molded plastic is used. The lower part 24 of the curing and transport box 23 has a receiving recess 25 into which the housing part 6 is inserted. The flange 11 of the housing part 6 then lies on the head side 26 of the lower part 24. The flange surface 13 is then provided with an adhesive bead 15. In the next step, a housing part 7, already equipped with a loudspeaker 5, with the flange surface 14 is placed on the plastic bead 15. The spacers 21 and blind holes 20 located on the flange surfaces 13, 14 and described above in FIG. 2 ensure an exact centering of the housing parts 6, 7 on one another and ensure that the adhesive bead 15 is not caused by the weight of the housing part 7 and the loudspeaker used 8 is compressed below the desired minimum adhesive thickness. The upper part 27 of the receiving and transport carton 23, which also contains a receiving recess 28, is then placed over the part of the loudspeaker receiving housing 5 protruding from the lower part 24. Since the depth (T O ) of the receiving recess 28 of the upper part 27 falls just short of the height (H A ) of the part of the loudspeaker receiving housing 5 protruding from the lower part 24, the upper part 27 is pressed onto the lower part 24 by force (P) along the direction of the arrow, so that the spacers 21 are placed on the bottom 22 of the blind hole 20. The force (P) required until the adhesive has hardened can be replaced by wrapping the upper part 27 and the lower part 24 of the receiving and transport carton 23 with an adhesive strip (not shown) perpendicularly to their mutually facing edges during only a brief force (P) will.

In Figur 4 ist eine weitere Nahtstelle zweier Gehäuseteile 6,7 im Detail dargestellt, wobei in Abweichung zu Figur 2 lediglich durch den Flansch 11 und den Abstandshalter 21 eine selbstschneidende Schraube 29 in ein am Boden 22 des Sacklochs 20 befindliches weiteres Sackloch 30 geführt ist. Die von der Schraube 29 ausgeübte Kraft bewirkt, daß die beiden Flanschflächen 13,14 zumindest während der Durchhärtzeit des Klebstoffs aufeinander gepreßt werden. Hiernach können die Schrauben 29 entfernt werden oder aber auch in den Flanschen 11,12 verbleiben, da sich im Vergleich zu entfernten Schrauben 29 gezeigt hat, daß bis zu maximal 4 Schrauben 29 an den Nahtstellen zweier Gehäuseteile 6,7 den Höreindruck der Lautsprecherbox nicht beeinträchtigen.FIG. 4 shows another interface between two housing parts 6, 7 in Shown in detail, a deviation from FIG. 2, a self-tapping screw 29 is only guided through the flange 11 and the spacer 21 into a further blind hole 30 located at the bottom 22 of the blind hole 20. The force exerted by the screw 29 causes the two flange surfaces 13, 14 to be pressed against one another at least during the curing time of the adhesive. Thereafter, the screws 29 can be removed or can also remain in the flanges 11, 12, since it has been shown in comparison to removed screws 29 that up to a maximum of 4 screws 29 at the seams of two housing parts 6, 7 do not impair the auditory impression of the loudspeaker box .

Es wird darauf hingewiesen, daß die Flanschflächen 13,14 in jedem vorstehend behandelten Ausführungsbeispiel zu besseren Haftung der Klebstoffwulst 15 mit einem Primer vorbehandelt sein können.It is pointed out that the flange surfaces 13, 14 in each of the exemplary embodiments discussed above can be pretreated with a primer for better adhesion of the adhesive bead 15.

Claims (3)

Mehrteiliges - insbesondere zweiteiliges - Gehäuse zur Aufnahme von Lautsprechern,
dadurch gekennzeichnet, - daß die die Lautsprecheraufnahme bildenden Gehäuseteile (6,7) schwimmend miteinander verklebt sind, und - daß der die Gehäuseteile (6,7) an ihren einander zugewandten Kanten durchgängig verklebende Klebstoff eine Mindestschichtdicke von 0,5 mm aufweist und eine Härte von maximal 60 Shore A sowie eine Mindestbruchdehnung von 400 % aufweist. Multi-part - especially two-part - housing for holding loudspeakers,
characterized, - That the housing parts forming the loudspeaker receptacle (6,7) are glued to one another in a floating manner, and - That the housing parts (6,7) on their mutually facing edges continuously adhesive glue has a minimum layer thickness of 0.5 mm and a hardness of a maximum of 60 Shore A and a minimum elongation at break of 400%. Lautsprecheraufnahmegehäuse nach Anspruch 1,
dadurch gekennzeichnet,
daß die Gehäuseteile (6,7) an ihren einander zugewandten Kanten Fixierhilfen aufweisen, die ein einfaches Zusammensetzen der Gehäuseteile (6,7) ermöglichen, bis zum Durchhärten des Klebstoffes ein gegenseitiges radiales Verschieben der Gehäuseteile (6,7) unterbinden und durch ihre Baulänge die jeweils gewünschte Mindestklebstoffdicke zwischen den Gehäuseteilen (6,7) gewährleisten.Loudspeaker housing according to claim 1,
characterized,
that the housing parts (6, 7) have fixing aids on their mutually facing edges, which allow simple assembly of the housing parts (6, 7) until the adhesive has cured, prevent a mutual radial displacement of the housing parts (6, 7) and their overall length ensure the required minimum adhesive thickness between the housing parts (6,7). Verfahren zur Herstellung eines Lautsprecheraufnahmegehäuses nach Anspruch 1,
dadurch gekennzeichnet, - daß der die Gehäuseteile (6,7) verklebende Klebstoff mit einer Schichtdicke aufgetragen wird, welche die jeweils gewünschte Mindestklebstoffdicke zwischen den Gehäuseteilen (6,7) im Endzustand übersteigt und - daß die jeweils verklebten Gehäuseteile (6,7) zumindest während der Durchhärtzeit des Klebstoffs gegeneinander gepreßt werden. A method of manufacturing a loudspeaker housing according to claim 1,
characterized, - That the adhesive of the housing parts (6,7) is applied with a layer thickness which exceeds the desired minimum adhesive thickness between the housing parts (6,7) in the final state and - That the respectively glued housing parts (6,7) are pressed against each other at least during the curing time of the adhesive.
EP90122510A 1989-12-18 1990-11-26 Loudspeaker housing case Expired - Lifetime EP0433704B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3941734A DE3941734A1 (en) 1989-12-18 1989-12-18 SPEAKER RECORDING HOUSING
DE3941734 1989-12-18

Publications (3)

Publication Number Publication Date
EP0433704A2 true EP0433704A2 (en) 1991-06-26
EP0433704A3 EP0433704A3 (en) 1992-04-01
EP0433704B1 EP0433704B1 (en) 1994-06-08

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP90122510A Expired - Lifetime EP0433704B1 (en) 1989-12-18 1990-11-26 Loudspeaker housing case

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EP (1) EP0433704B1 (en)
DE (2) DE3941734A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19815751C2 (en) * 1998-04-08 2000-10-26 Matthias Petig Loudspeaker with a loudspeaker housing formed from several components
DE10330453A1 (en) * 2003-07-05 2005-01-27 Karosseriewerk Krämer GmbH Wall structure for absorption of airborne sound comprises two boundary layers and a compound separation layer forming spaces which are filled with an absorption material

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0021455A1 (en) * 1979-06-07 1981-01-07 Braun Aktiengesellschaft Loudspeaker enclosure
JPS60236398A (en) * 1984-05-09 1985-11-25 Fujitsu Ten Ltd Manufacture of speaker box
JPS61210794A (en) * 1986-03-06 1986-09-18 Pioneer Electronic Corp Sound cabinet

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2260983A1 (en) * 1972-12-13 1974-06-20 Geb Otten Marita Preuss SPEAKER BOX
DE8303355U1 (en) * 1983-02-08 1983-06-16 Hornaff, Bernd, 6900 Heidelberg SPEAKER HOUSING

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0021455A1 (en) * 1979-06-07 1981-01-07 Braun Aktiengesellschaft Loudspeaker enclosure
JPS60236398A (en) * 1984-05-09 1985-11-25 Fujitsu Ten Ltd Manufacture of speaker box
JPS61210794A (en) * 1986-03-06 1986-09-18 Pioneer Electronic Corp Sound cabinet

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 10, no. 95 (E-395)12. April 1986 & JP-A-60 236 398 ( FUJITSU ) 25. November 1985 *
PATENT ABSTRACTS OF JAPAN vol. 11, no. 46 (E-479)12. Februar 1987 & JP-A-61 210 794 ( PIONEER ) 18. September 1986 *

Also Published As

Publication number Publication date
DE3941734A1 (en) 1991-06-20
DE59006041D1 (en) 1994-07-14
EP0433704A3 (en) 1992-04-01
EP0433704B1 (en) 1994-06-08

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