EP0080188A1 - A body, used especially for sound absorption, e.g. in rooms, in the form of a cylindrical tube made of mineral fibres - Google Patents

A body, used especially for sound absorption, e.g. in rooms, in the form of a cylindrical tube made of mineral fibres Download PDF

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Publication number
EP0080188A1
EP0080188A1 EP82110714A EP82110714A EP0080188A1 EP 0080188 A1 EP0080188 A1 EP 0080188A1 EP 82110714 A EP82110714 A EP 82110714A EP 82110714 A EP82110714 A EP 82110714A EP 0080188 A1 EP0080188 A1 EP 0080188A1
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EP
European Patent Office
Prior art keywords
cover
support
body according
support ring
mandrel opening
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
EP82110714A
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German (de)
French (fr)
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EP0080188B1 (en
Inventor
Werner Müller
Kurt Hemala
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.)
Saint Gobain Isover G+H AG
G&H Montage GmbH
Original Assignee
G&H Montage GmbH
Gruenzweig und Hartmann AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by G&H Montage GmbH, Gruenzweig und Hartmann AG filed Critical G&H Montage GmbH
Priority to AT82110714T priority Critical patent/ATE14329T1/en
Publication of EP0080188A1 publication Critical patent/EP0080188A1/en
Application granted granted Critical
Publication of EP0080188B1 publication Critical patent/EP0080188B1/en
Expired legal-status Critical Current

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    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62—Insulation or other protection; Elements or use of specified material therefor
    • E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
    • E04B1/82—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to sound only
    • E04B1/8209—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to sound only sound absorbing devices
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general

Definitions

  • the invention relates in particular to a sound absorbing element such. B. in rooms serving body with a mineral fiber tube shell, according to the preamble of claim 1.
  • Such sound absorbing elements are known from DE-OSen 27 25 398 and 29 32 473 and consist of a length of a mineral fiber tubular shell, the surface of which has a protective covering made of an elastic network structure, in particular a knitted fabric, and the end faces of which have covers in the form of rigid covers are provided.
  • the covers overlap the end faces of the mineral fiber tube shells and are on the end faces in the axial direction of the tube shells. secured position.
  • the radial securing of the position takes place via a circumferential axial wall section of the cup-shaped cover, which overlaps the section of the outer wall of the pipe shell adjoining the end face.
  • the cover is pressed onto the end face of the pipe shell via a holding element similar to a tie rod, such as a threaded rod, the counter-holding of the threaded rod generally being carried out on a corresponding cover on the opposite side of the pipe shell.
  • the mandrel opening has an exact calibration determined by the mandrel, but the outer circumference of such a mineral fiber tube shell is relatively irregular with diameter deviations and out-of-roundness.
  • the exactly round peripheral edge of the cover does not always exactly follow the contour of the outer circumference of the pipe shell, but unsightly gaps or remaining visible edges of varying width remain. It is only through the direct visual comparison with the exactly round shape of the edge of the cover that dimensional deviations in the outer circumference of the mineral fiber tube shell become optically significant. This problem occurs regardless of the specific use of the body whenever a tubular body such as a mineral fiber tube shell with dimensional inaccuracies in the outer circumference is to be covered on the end face by such a cover.
  • the outer edge of the cover formed by the axial wall section is the radially most protruding part of the body thus formed. If a plurality of bodies with a horizontal longitudinal axis of the pipe shell are to be stacked one on top of the other, the cover edges of adjacent bodies formed by the axial wall sections lie against one another with a correspondingly exact alignment. However, since the axial wall sections of the cup-shaped cover have a comparatively short axial length, it is practically inevitable, for example, due to vibrations during transport that the cover edges become out of alignment and in this way individual cover edges come to rest on the unprotected pipe shell or its covering of the adjacent body . In the event of relative movements, the outer wall of the pipe shell or the casing can be damaged as a result. In practice, therefore, the known bodies of this type have to be kept at a distance from one another by spacers, which causes additional costs.
  • the invention has for its object to provide a body of the type outlined in the preamble of claim 1, the dimensional deviations of its outer circumference do not appear visually disturbing.
  • the cover has an outer diameter that is smaller than the inner diameter of the mandrel opening, there is no need for any outer edges that optically follow the contour of the outer circumference of the mineral fiber tubular shell and thus make irregularities in the outer circumference of the mineral fiber tubular shell optically visible. Without such an outer edge, which projects radially beyond the mandrel opening, however, the cover is no longer secured in position in the axial direction on the end face of the tubular shell.
  • the axial securing of the position is carried out according to the invention by a special support device which supports the cover with supporting parts projecting radially inwards from the peripheral wall of the winding mandrel opening. In this way, the axial securing of the position of the cover is moved from the front edge region of the winding mandrel opening into the winding mandrel opening.
  • the shape of the peripheral edge of the lid only appears in direct relation to the mandrel opening, which, however, is also manufactured precisely so that the appearance is not impaired. Furthermore, the cover lies radially far inside the peripheral outer wall of the pipe shell, so that this is the peripheral boundary of the body thus formed. This avoids during storage and stacking of the body that the lid of one body comes into contact with parts of an adjacent body that are susceptible to damage, so that simple stacking without spacers is possible without problems.
  • a body according to the invention has a mineral fiber tube shell 1 with an inner mandrel opening 2 and an essentially cylindrical outer wall 3, for example as a sound absorbing element.
  • mineral fiber material is wound around a mandrel so that the peripheral wall of the mandrel opening 2, designated 4, is smooth and dimensionally stable, while the outer wall 3 remains relatively irregular with dimensional deviations and out-of-roundness at the end of the winding process.
  • a cover 5 is inserted, which is adapted to the diameter of the mandrel opening 2 with little play and fitted into this.
  • the cover 5 has a round circumference and a bowl shape with an axial wall section 6 adjoining the radial main body, which is directed inwards from the end face of the mineral fiber tube shell 1, designated 7, towards the central region thereof.
  • the radial securing of the position of the cover 5 in the mandrel opening 2 takes place on the basis of the axial wall section 6.
  • a support device 8 is arranged on the circumference of the mandrel opening 2, as is shown individually in FIG. 2.
  • the support device 8 has a support ring 9, which has a slight oversize compared to the axial wall section 6 of the cover 5 and, on the other hand, has a small undersize compared to the mandrel opening 2.
  • the support ring 9 is made, for example, of sheet metal and has an axial height h which gives the support ring 9 sufficient strength against deformation in the axial direction.
  • the support ring 9 has a plurality of support parts 10 projecting inwards from the peripheral wall 4 of the mandrel opening 2, on which the free edge of the axial wall section 6 of the cover 5 rests.
  • the support parts 10 are formed in one piece with the support ring 9 in the example and can be produced in a simple manner in that a corresponding material portion is tongue-like separated from the main body of the support ring 9 and then bent inwards, so that in the main body of the support ring 9 in the circumferential region of the Support parts 10 corresponding cutouts 11 remain, which are harmless.
  • the cover 5 has a passage opening 5a for a holding element similar to a tie rod, for example in the form of a threaded rod 12, with which the cover 5 is pulled inwards away from the end face 7 of the mineral fiber tube shell.
  • a tie rod for example in the form of a threaded rod 12, with which the cover 5 is pulled inwards away from the end face 7 of the mineral fiber tube shell.
  • the threaded rod 12 With a projecting end 12a, the threaded rod 12 can serve to support the body in a lying position or can carry a hanging eye for hanging the body.
  • the cover 5 is braced via the threaded rod 12 against a corresponding cover at the opposite end of the body.
  • the support device 8 with the support parts 10 ensures that the cover 5 is supported in the region of the peripheral wall 4 of the mandrel opening 2, so that cover elements for the end face 7 extend
  • Such an axial support can be dispensed with and in particular the axial wall section 6 is moved inward from the area of the cylindrical outer wall 3 into the area of the peripheral wall 4 of the mandrel opening 2, so that it can neither interfere optically nor cause damage to adjacent bodies during storage .
  • the support ring 9 of the support device 8 is supported in relation to the mineral fiber tubular shell 1 in the example by means of a plurality of bearing parts 13, which in the manner shown in FIG. 1 are pierced into the material of the peripheral wall 4 of the mandrel opening 2 and have radial recesses 14 for this purpose .
  • the grooved tongues 14 pass through appropriately designed, slot-shaped openings 15 through the support ring 9, so that the support ring 9 can be supported over the edges of the openings 15 on the rear parts of the grooved tongues 14 protruding from the peripheral wall 4 of the mandrel opening 2.
  • mounting tongues 16 are formed on the bearing parts 13, which are angled at a right angle and can, given a corresponding width, be given an arc-shaped curvature approximating the curvature of the support ring 9 and lie essentially flat against the inside of the support ring 9.
  • the assembly tongues 16 serve first to facilitate the correct assembly of the bearing parts 13 in that the insertion tongues 14 are pierced by pressure on the assembly tongues 16 until the assembly tongues 16 strike the inside of the support ring 9.
  • the mounting tongues 16 make no additional contribution to stabilizing the exact radial position of the insertion tongues 14. It has been shown that even in such a case, a slight swiveling out of the grooved tongues 14 from a radial position occurs under the load of the tensioning of the cover 5, since the fulcrum of such a pivoting movement is very close to the outside of the support ring 9, so that the forces from the support ring 9 are present very small lever arm can be initiated.
  • a slight pivoting movement of the grooving tongues 14 with their outer ends in the example of the illustration according to FIG. 1 upwards is irrelevant, since the support point of the axial wall section 6 of the cover 5 at the inner ends of the grooving tongues 14 only during the transition to the mounting tongues 16 undergoes a very slight axial change in position.
  • the mounting tongues 16 can be used in the manner shown in FIG. 1 for additional stabilization of the bearing parts 13 in that the mounting tongues 16 reach at least one of their end regions in the gap between the axial wall section 6 of the cover 5 and the inside of the support ring 9 , so that the mounting tongues 16 in the assembled position by the axial wall section 6 of the cover 5 are positively held in their abutment on the inside of the support ring 9.
  • the bending stiffness of the angular range between each mounting tongue 16 and the associated piercing tongue 14 can be achieved for further stabilization of the position of the piercing tongues 14, if this is desired.
  • the outer edge of the support ring 9 closes the essential 'chen approximately flush with the end face 7 of the mineral fiber tube shell 1 ab.und thus acts as additional protection for the edge between the end face 7 and the peripheral wall 4 of the mandrel opening 2.
  • the axial distance h 1 between the support plane of the support parts 10 and the upper edge of the support ring 9 or the end face 7 can be chosen according to the axial height h 2 of the axial wall section 6 become, or exceed it. In the latter case, the difference between the axial distance h and the axial height h 2 of the axial wall section 6 gives a dimension t, according to which the main body of the cover 5 is offset inwards relative to the end face, so that the cover 5 is sunk to a certain extent.
  • the choice of dimension t possibly even with zero, is a purely practical consideration.
  • the body also has a covering 17, for example in the form of an elastic knitted fabric, as is known per se for protecting the mineral fiber material on the sensitive outer wall 3 of the mineral fiber tubular shell 1 .
  • the sheath 17 engages over the end face 7 and is guided back into the mandrel opening 2 with a folded edge 17a.
  • the sheathing 17 could be applied to the mineral fiber tube shell 1 before the support device 8 is fastened, so that the bearing parts 13 with their recesses 14 pierce the material of the sheathing 17 at the edge 17a thereof and thus additionally secure the sheathing 17.
  • the support ring 9 is therefore first inserted into the mandrel opening 2 and secured there by piercing the bearing parts 13. The covering 17 is then applied and thus also overlaps the Support ring 9 and possibly the mounting tongues 16 of the bearing parts 13.
  • FIG. 2 the shape of the support ring 9 of the support device 8 shown in section in FIG. 1 becomes clearer.
  • two bearing parts 13 are illustrated in the assembled position, in which the indentations 14 have penetrated into the material of the mineral fiber tube shell 1 in the manner shown in FIG. 1 and the depth of penetration by abutment of the mounting tongues 16 the inside of the support ring 9 is limited.
  • the line II selected in Fig. 1 is further illustrated with the line II.

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  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Electromagnetism (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Multimedia (AREA)
  • Exhaust Silencers (AREA)

Abstract

1. Element serving in particular as sound-absorbing element for example in rooms and comprising a mineral fiber tube shell having at least one end-side covering in the form of a rigid cover, characterized in that the outer diameter of the cover (5) is smaller than the inner diameter of the winding mandrel opening (2) and that for axial location securing of the cover (5) a support means (8) is provided at the peripheral wall (4) of the winding mandrel opening (2) and supports the cover (5) with support portions (10) which project radially inwardly from the peripheral wall (4) of the winding mandrel opening (2) ; that the support means (8) is in turn held by means of bearing members (13) which radially outwardly are pressed into the peripheral wall (4) of the winding mandrel opening (2) ; and that the support means (8) comprises a support ring (9) disposed between the peripheral wall (4) of the winding mandrel opening (2) and the edge of the cover (5).

Description

Die Erfindung betrifft einen insbesondere als Schallschluckelement z. B. in Räumen dienenden Körper mit einer Mineralfaser-Rohrschale, nach dem Oberbegriff des Anspruchs 1.The invention relates in particular to a sound absorbing element such. B. in rooms serving body with a mineral fiber tube shell, according to the preamble of claim 1.

Derartige Schallschluckelemente sind aus den DE-OSen 27 25 398 und 29 32 473 bekannt und bestehen aus einem Längenabschnitt einer Mineralfaser-Rohrschale, deren Oberfläche eine schützende Umhüllung aus einem elastischen Netzverband, insbesondere einem Gestrick, aufweist und deren Stirnseiten mit Abdeckungen in Form starrer Deckel versehen sind. Die Deckel übergreifen die Stirnflächen der Mineralfaser-Rohrschalen und sind an den Stirnflächen in axialer Richtung der Rohrschalen. lagegesichert. Die radiale Lagesicherung erfolgt über einen umfangsseitigen axialen Wandabschnitt der napfförmigen Deckel,der den an die Stirnfläche anschliessenden Abschnitt der Außenwand der Rohrschale übergreift. Der Deckel ist über ein zugankerähnliches Halteelement wie eine Gewindestange an die Stirnfläche der Rohrschale angedrückt, wobei die Gegenhalterung der Gewindestange in der Regel an einem entsprechenden Deckel an der gegenüberliegenden Seite der Rohrschale erfolgt.Such sound absorbing elements are known from DE-OSen 27 25 398 and 29 32 473 and consist of a length of a mineral fiber tubular shell, the surface of which has a protective covering made of an elastic network structure, in particular a knitted fabric, and the end faces of which have covers in the form of rigid covers are provided. The covers overlap the end faces of the mineral fiber tube shells and are on the end faces in the axial direction of the tube shells. secured position. The radial securing of the position takes place via a circumferential axial wall section of the cup-shaped cover, which overlaps the section of the outer wall of the pipe shell adjoining the end face. The cover is pressed onto the end face of the pipe shell via a holding element similar to a tie rod, such as a threaded rod, the counter-holding of the threaded rod generally being carried out on a corresponding cover on the opposite side of the pipe shell.

Bedingt durch die Herstellungsweise derartiger Mineralfaser-Rohrschalen weist zwar die Wickeldornöffnung eine genaue durch den Wickeldorn bestimmte Kalibrierung auf, jedoch fällt der Außenumfang einer solchen Mineralfaser-Rohrschale relativ unregelmäßig mit Durchmesserabweichungen und Unrundheiten aus. Dies hat zur Folge, daß der selbstverständlich exakt runde Umfangsrand des Deckels nicht immer exakt der Kontur des Außenumfangs der Rohrschale folgt, sondern unschöne Spalte oder verbleibende Sichtränder wechselnder Breite verbleiben. Erst durch den optischen unmittelbaren Vergleich mit der exakt runden Form des Deckelrandes fallen Maßabweichungen des Außenumfangs der Mineralfaser-Rohrschale optisch ins Gewicht. Diese Problematik tritt unabhängig von der konkreten Verwendung des Körpers stets dann auf, wenn ein rohrförmiger Körper wie eine Mineralfaser-Rohrschale mit Maßungenauigkeiten des Außenumfangs durch einen solchen Deckel stirnseitig abgedeckt werden soll.Due to the way in which such mineral fiber tube shells are manufactured, the mandrel opening has an exact calibration determined by the mandrel, but the outer circumference of such a mineral fiber tube shell is relatively irregular with diameter deviations and out-of-roundness. The result of this is that, of course, the exactly round peripheral edge of the cover does not always exactly follow the contour of the outer circumference of the pipe shell, but unsightly gaps or remaining visible edges of varying width remain. It is only through the direct visual comparison with the exactly round shape of the edge of the cover that dimensional deviations in the outer circumference of the mineral fiber tube shell become optically significant. This problem occurs regardless of the specific use of the body whenever a tubular body such as a mineral fiber tube shell with dimensional inaccuracies in the outer circumference is to be covered on the end face by such a cover.

Weiterhin ist der durch den axialen Wandabschnitt gebildete Außenrand des Deckels das radial am weitesten vorspringende Teil des so gebildeten Körpers. Wenn mehrere Körper mit horizontaler Längsachse der Rohrschale liegend aufeinander gestapelt werden sollen, so liegen bei entsprechend exakter Ausrichtung die durch die axialen Wandabschnitte gebildeten Deckelränder benachbarter Körper aneinander an. Da jedoch die axialen Wandabschnitte der napfförmigen Deckel vergleichsweise geringe axiale Länge besitzen, ist etwa bereits durch Erschütterungen beim Transport praktisch unvermeidlich, daß die Deckelränder außer Flucht geraten und auf diese Weise einzelne Deckelränder an der ungeschützen Rohrschale bzw. deren Umhüllung des benachbarten Körpers zur Anlage gelangen. Bei Relativbewegungen kann hierdurch die Außenwand der Rohrschale bzw. die Umhüllung beschädigt werden. Daher müssen die bekannten Körper dieser Art in der Praxis durch Abstandshalter auf gegenseitigem Abstand gehalten werden, was zusätzliche Kosten verursacht.Furthermore, the outer edge of the cover formed by the axial wall section is the radially most protruding part of the body thus formed. If a plurality of bodies with a horizontal longitudinal axis of the pipe shell are to be stacked one on top of the other, the cover edges of adjacent bodies formed by the axial wall sections lie against one another with a correspondingly exact alignment. However, since the axial wall sections of the cup-shaped cover have a comparatively short axial length, it is practically inevitable, for example, due to vibrations during transport that the cover edges become out of alignment and in this way individual cover edges come to rest on the unprotected pipe shell or its covering of the adjacent body . In the event of relative movements, the outer wall of the pipe shell or the casing can be damaged as a result. In practice, therefore, the known bodies of this type have to be kept at a distance from one another by spacers, which causes additional costs.

Der Erfindung liegt die Aufgabe zugrunde, einen Körper der im Oberbegriff des Anspruchs 1 umrissenen Gattung zu schaffen, der Maßabweichungen seines Außenumfangs optisch nicht störend in Erscheinung treten läßt.The invention has for its object to provide a body of the type outlined in the preamble of claim 1, the dimensional deviations of its outer circumference do not appear visually disturbing.

Die Lösung dieser Aufgabe erfolgt durch die kennzeichnenden Merkmale des Anspruchs 1.This object is achieved by the characterizing features of claim 1.

Dadurch, daß der Deckel einen gegenüber dem Innendurchmesser der Wickeldornöffnung geringeren Außendurchmesser aufweist, entfallen jegliche äußere Ränder, die optisch der Kontur des Außenumfangs der Mineralfaser-Rohrschale folgen und so Unregelmäßigkeiten des Außenumfangs der Mineralfaser-Rohrschale optisch sichtbar machen. Ohne einen solchen äußeren, die Wickeldornöffnung radial überragenden Rand ist jedoch der Deckel in Axialrichtung nicht mehr an der Stirnfläche der Rohrschale lagegesichert. Die axiale Lagesicherung übernimmt erfindungsgemäß eine besondere Stützeinrichtung, die den Deckel mit von der Umfangswand der Wickeldornöffnung radial nach innen vorspringenden Abstützteilen unterstützt.Auf diese Weise wird die axiale Lagesicherung des Deckels vom stirnseitigen Randbereich der Wickeldornöffnung in die Wickeldornöffnung hineinverlegt.Because the cover has an outer diameter that is smaller than the inner diameter of the mandrel opening, there is no need for any outer edges that optically follow the contour of the outer circumference of the mineral fiber tubular shell and thus make irregularities in the outer circumference of the mineral fiber tubular shell optically visible. Without such an outer edge, which projects radially beyond the mandrel opening, however, the cover is no longer secured in position in the axial direction on the end face of the tubular shell. The axial securing of the position is carried out according to the invention by a special support device which supports the cover with supporting parts projecting radially inwards from the peripheral wall of the winding mandrel opening. In this way, the axial securing of the position of the cover is moved from the front edge region of the winding mandrel opening into the winding mandrel opening.

Optisch tritt die Form des Umfangsrandes des Deckels somit nur in unmittelbarer Bezug zur Wickeldornöffnung in Erscheinung, die jedoch ebenfalls genau gefertigt ist, so daß eine Beeinträchtigung des Aussehens nicht auftritt. Weiterhin liegt der Deckel radial weit innerhalb der umfangsseitigen Außenwand der Rohrschale, so daß diese die umfangsseitige Begrenzungdes so gebildeten Körpers ist. Hierdurch ist bei Lagerung und Stapelung der Körper vermieden, daß der Deckel des einen Körpers mit beschädigungsanfälligen Teilen eines Nachbarkörpers in Berührung kommt, so daß eine einfache Stapelung ohne Abstandshalter problemlos möglich ist.Visually, the shape of the peripheral edge of the lid only appears in direct relation to the mandrel opening, which, however, is also manufactured precisely so that the appearance is not impaired. Furthermore, the cover lies radially far inside the peripheral outer wall of the pipe shell, so that this is the peripheral boundary of the body thus formed. This avoids during storage and stacking of the body that the lid of one body comes into contact with parts of an adjacent body that are susceptible to damage, so that simple stacking without spacers is possible without problems.

Die Unteransprüche haben vorteilhafte Weiterbildungen der Erfindung zum Inhalt.The dependent claims contain advantageous developments of the invention.

Weitere Einzelheiten, Merkmale und Vorteile der Erfindung ergeben sich aus der nachfolgenden Beschreibung einer Ausführungsform anhand der Zeichnung.Further details, features and advantages of the invention result from the following description of an embodiment with reference to the drawing.

Es zeigt

  • Fig. 1 einen Axialschnitt durch einen mit einem Deckel versehenen Endabschnitt eines erfindungsgemäßen Körpers, und
  • Fig. 2 eine schaubildliche Darstellung des beim Körper gemäß Fig. 1 verwendeten Stützrings.
It shows
  • 1 shows an axial section through an end section of a body according to the invention provided with a cover, and
  • Fig. 2 is a perspective view of the support ring used in the body of FIG. 1.

Wie Fig. 1 veranschaulicht, weist ein erfindungsgemäßer Körper beispielsweise als Schallschluckelement eine Mineralfaser-Rohrschale 1 mit einer inneren Wickeldornöffnung 2 und einer im wesentlichen zylindrischen Außenwand 3 auf. Zur Herstellung einer solchen Mineralfaser-Rohrschale 1 wird Mineralfasermaterial um einen Wickeldorn herumgewickelt, so daß die mit 4 bezeichnete Umfangswand der Wickeldornöffnung 2 glatt und maßhaltig ist, während die Außenwand 3 am Ende des Wickelvorgangs relativ unregelmäßig mit Maßabweichungen und Unrundheiten verbleibt.As illustrated in FIG. 1, a body according to the invention has a mineral fiber tube shell 1 with an inner mandrel opening 2 and an essentially cylindrical outer wall 3, for example as a sound absorbing element. To produce such a mineral fiber tube shell 1, mineral fiber material is wound around a mandrel so that the peripheral wall of the mandrel opening 2, designated 4, is smooth and dimensionally stable, while the outer wall 3 remains relatively irregular with dimensional deviations and out-of-roundness at the end of the winding process.

In die Wickeldornöffnung 2 ist ein Deckel 5 eingesetzt, der mit geringem Spiel an den Durchmesser der Wickeldornöffnung 2 angepaßt und in diese eingepaßt ist. Der Deckel 5 weist runden Umfang und Napfform mit einem an den radialen Hauptkörper anschließenden axialen Wandabschnitt 6 auf, der von der mit 7 bezeichneten Stirnfläche der Mineralfaser-Rohrschale 1 aus nach innen zu deren Mittelbereich hin gerichtet ist. Anhand des axialen Wandabschnittes 6 erfolgt die radiale Lagesicherung des Deckels 5 in der Wickeldornöffnung 2.In the mandrel opening 2, a cover 5 is inserted, which is adapted to the diameter of the mandrel opening 2 with little play and fitted into this. The cover 5 has a round circumference and a bowl shape with an axial wall section 6 adjoining the radial main body, which is directed inwards from the end face of the mineral fiber tube shell 1, designated 7, towards the central region thereof. The radial securing of the position of the cover 5 in the mandrel opening 2 takes place on the basis of the axial wall section 6.

Zur axialen Lagesicherung des Deckels 5 ist eine Stützeinrichtung 8 am Umfang der Wickeldornöffnung 2 angeordnet, wie sie in Fig. 2 einzeln dargestellt ist. Die Stützeinrichtung 8 weist einen Stützring 9 auf, der gegenüber dem axialen Wandabschnitt 6 des Deckels 5 geringes Übermaß besitzt und gegenüber der Wickeldornöffnung 2 andererseits geringes Untermaß besitzt. Der Stützring 9 ist beispielsweise aus Blech hergestellt und weist eine axiale Höhe h auf, die dem Stützring 9 eine ausreichende Festigkeit gegen Verformungen in Axialrichtung verleiht. Der Stützring 9 weist eine Mehrzahl von von der Umfangswand 4 der Wickeldornöffnung 2 nach innen vorstehenden Abstützteilen 10 auf, auf denen der freie Rand des axialen Wandabschnittes 6 des Deckels 5 aufliegt. Die Abstützteile 10 sind im Beispielsfalle einstückig mit dem Stützring 9 ausgebildet und können in einfacher Weise dadurch hergestellt werden, daß ein entsprechender Materialanteil zungenartig aus dem Hauptkörper des Stützring 9 abgetrennt und sodann nach innen umgebogen wird, so daß im Hauptkörper des Stützrings 9 im Umfangsbereich der Abstützteile 10 entsprechende Ausschnitte 11 verbleiben, die unschädlich sind.To axially secure the position of the cover 5, a support device 8 is arranged on the circumference of the mandrel opening 2, as is shown individually in FIG. 2. The support device 8 has a support ring 9, which has a slight oversize compared to the axial wall section 6 of the cover 5 and, on the other hand, has a small undersize compared to the mandrel opening 2. The support ring 9 is made, for example, of sheet metal and has an axial height h which gives the support ring 9 sufficient strength against deformation in the axial direction. The support ring 9 has a plurality of support parts 10 projecting inwards from the peripheral wall 4 of the mandrel opening 2, on which the free edge of the axial wall section 6 of the cover 5 rests. The support parts 10 are formed in one piece with the support ring 9 in the example and can be produced in a simple manner in that a corresponding material portion is tongue-like separated from the main body of the support ring 9 and then bent inwards, so that in the main body of the support ring 9 in the circumferential region of the Support parts 10 corresponding cutouts 11 remain, which are harmless.

Der Deckel 5 weist in der üblichen Weise eine Durchtrittsöffnung 5a für ein zugankerähnliches Halteelement beispielsweise in Form einer Gewindestange 12 auf, mit der der Deckel 5 von der Stirnfläche 7 der Mineralfaser-Rohrschale weg nach innen gezogen wird. Die Gewindestange 12 kann mit einem überstehenden Ende 12a zu einer liegenden Lagerung der Körper dienen oder eine Aufhängeöse zum Abhängen des Körpers tragen. In der Regel ist der Deckel 5 über die Gewindestange 12 gegen einen entsprechenden Deckel am gegenüberliegenden Ende des Körpers verspannt.In the usual way, the cover 5 has a passage opening 5a for a holding element similar to a tie rod, for example in the form of a threaded rod 12, with which the cover 5 is pulled inwards away from the end face 7 of the mineral fiber tube shell. With a projecting end 12a, the threaded rod 12 can serve to support the body in a lying position or can carry a hanging eye for hanging the body. As a rule, the cover 5 is braced via the threaded rod 12 against a corresponding cover at the opposite end of the body.

In jedem Falle gewährleistet die Stützeinrichtung 8 mit den Abstützteilen 10 eine Abstützung des Deckels 5 im Bereich der Umfangswand 4 der Wickeldornöffnung 2, so daß die Stirnfläche 7 übergreifende Deckelelemente für eine solche axiale Abstützung entfallen können und insbesondere der axiale Wandabschnitt 6 vom Bereich der zylindrischen Außenwand 3 nach innen in den Bereich der Umfangswand 4 der Wickeldornöffnung 2 verlegt ist, so daß er hier weder optisch stören kann noch Beschädigungen an bei der Lagerung benachbarten Körpern bewirken kann.In any case, the support device 8 with the support parts 10 ensures that the cover 5 is supported in the region of the peripheral wall 4 of the mandrel opening 2, so that cover elements for the end face 7 extend Such an axial support can be dispensed with and in particular the axial wall section 6 is moved inward from the area of the cylindrical outer wall 3 into the area of the peripheral wall 4 of the mandrel opening 2, so that it can neither interfere optically nor cause damage to adjacent bodies during storage .

Die Lagerung des Stützrings 9 der Stützeinrichtung 8 gegenüber der Mineralfaser-Rohrschale 1 erfolgt im Beispielsfalle mittels einer Mehrzahl von Lagerteilen 13, die in der aus Fig. 1 ersichtlichen Weise in das Material der Umfangswand 4 der Wickeldornöffnung 2 eingestochen sind und hierzu radiale Einstechzungen 14 aufweisen. Die Einstechzungen 14 durchsetzen entsprechend ausgebildete, schlitzförmige Durchbrüche 15 durch den Stützring 9, so daß sich der Stützring 9 über die Ränder der Durchbrüche 15 an den aus der Umfangswand 4 der Wickeldornöffnung 2 herausragenden rückwärtigen Teilen der Einstechzungen 14 abstützen kann. Am radial inneren Ende der Einstechzungen sind im wesentlichen im rechten Winkel abgewinkelte Montagezungen 16 an den Lagerteilen 13 ausgebildet, die bei entsprechender Breite eine der Rundung des Stützrings 9 angenäherte bogenförmige Rundung erhalten können und im wesentlichen flächig an der Innenseite des Stützrings 9 anliegen. Die Montagezungen 16 dienen zunächst zur Erleichterung der richtigen Montage der Lagerteile 13 dadurch, daß die Einstechzungen 14 durch Druck auf die Montagezungen 16 so weit eingestochen werden, bis die Montagezungen 16 an der Innenseite des Stützrings 9 anschlagen. In dieser Stellung ist gewährleistet, daß die Einstechzungen 14 soweit als möglich in das Mineralfasermaterial hinter der Umfangswand 4 der Wickeldornöffnung 2 eingestochen sind und dort somit bestmöglichen Halt bieten, während andererseits gewährleistet ist, daß die Ränder der Durchbrüche 15 des Stützrings 9 sich tatsächlich sauber noch auf den Einstechzungen 14 abstützen können.The support ring 9 of the support device 8 is supported in relation to the mineral fiber tubular shell 1 in the example by means of a plurality of bearing parts 13, which in the manner shown in FIG. 1 are pierced into the material of the peripheral wall 4 of the mandrel opening 2 and have radial recesses 14 for this purpose . The grooved tongues 14 pass through appropriately designed, slot-shaped openings 15 through the support ring 9, so that the support ring 9 can be supported over the edges of the openings 15 on the rear parts of the grooved tongues 14 protruding from the peripheral wall 4 of the mandrel opening 2. At the radially inner end of the piercing tongues, mounting tongues 16 are formed on the bearing parts 13, which are angled at a right angle and can, given a corresponding width, be given an arc-shaped curvature approximating the curvature of the support ring 9 and lie essentially flat against the inside of the support ring 9. The assembly tongues 16 serve first to facilitate the correct assembly of the bearing parts 13 in that the insertion tongues 14 are pierced by pressure on the assembly tongues 16 until the assembly tongues 16 strike the inside of the support ring 9. In this position it is ensured that the piercing tongues 14 are inserted as far as possible into the mineral fiber material behind the peripheral wall 4 of the mandrel opening 2 and thus offer the best possible hold there, while on the other hand it is ensured that the edges of the openings 15 of the support ring 9 are actually clean can base on the indentations 14.

Sofern die Montagezungen 16 in der montierten Stellung der Stützeinrichtung 8 frei ohne Berührung mit Teilen des Deckels 5 an der Innenseite des Stützrings 9 vorliegen, leisten die Montagezungen 16 keinen zusätzlichen Beitrag zur Stabilisierung der exakten radialen Lage der Einstechzungen 14. Es hat sich gezeigt, daß auch in einem solchen Falle ein allenfalls geringes Ausschwenken der Einstechzungen 14 aus radialen Lage unter der Last der Verspannung des Deckels 5 auftritt, da der Drehpunkt einer solchen Schwenkbewegung sehr nahe an der Außenseite des Stützrings 9 liegt, so daß vom Stützring 9 her die Kräfte mit sehr geringem Hebelarm eingeleitet werden. Andererseits ist eine geringfügige Schwenkbewegung der Einstechzungen 14 mit ihren äußeren Enden im Beispielsfalle der Darstellung gemäß Fig. 1 nach oben ohne Belang, da hierdurch der Abstützpunkt des axialen Wandabschnitts 6 des Deckels 5 an den inneren Enden der Einstechzungen 14 beim Übergang zu den Montagezungen 16 nur eine ganz geringe axiale Lageveränderung erfährt.If the mounting tongues 16 are freely in the assembled position of the support device 8 without contact with parts of the cover 5 on the inside of the support ring 9, the mounting tongues 16 make no additional contribution to stabilizing the exact radial position of the insertion tongues 14. It has been shown that even in such a case, a slight swiveling out of the grooved tongues 14 from a radial position occurs under the load of the tensioning of the cover 5, since the fulcrum of such a pivoting movement is very close to the outside of the support ring 9, so that the forces from the support ring 9 are present very small lever arm can be initiated. On the other hand, a slight pivoting movement of the grooving tongues 14 with their outer ends in the example of the illustration according to FIG. 1 upwards is irrelevant, since the support point of the axial wall section 6 of the cover 5 at the inner ends of the grooving tongues 14 only during the transition to the mounting tongues 16 undergoes a very slight axial change in position.

Jedoch lassen sich die Montagezungen 16 in der aus Fig. 1 ersichtlichen Weise zur zusätzlichen Stabilisierung der Lagerteile 13 dadurch verwenden, daß die Montagezungen 16 zumindest mit einem ihrer Endbereiche in den Spalt zwischen dem axialen Wandabschnitt 6 des Deckels 5 und der Innenseite des Stützrings 9 gelangen, so daß die Montagezungen 16 in der montierten Stellung durch den axialen Wandabschnitt 6 des Deckels 5 formschlüssig in ihrer Anlage an der Innenseite des Stützrings 9 gehalten sind. Hierdurch läßt sich die Biegesteifheit des Winkelbereichs zwischen jeder Montagezunge 16 und der zugehörigen Einstechzunge 14 für eine weitere Stabilisierung der Lage der Einstechzungen 14 erzielen, sofern dies gewünscht ist.However, the mounting tongues 16 can be used in the manner shown in FIG. 1 for additional stabilization of the bearing parts 13 in that the mounting tongues 16 reach at least one of their end regions in the gap between the axial wall section 6 of the cover 5 and the inside of the support ring 9 , so that the mounting tongues 16 in the assembled position by the axial wall section 6 of the cover 5 are positively held in their abutment on the inside of the support ring 9. As a result, the bending stiffness of the angular range between each mounting tongue 16 and the associated piercing tongue 14 can be achieved for further stabilization of the position of the piercing tongues 14, if this is desired.

Der äußere Rand des Stützringes 9 schließt im wesentli-' chen etwa bündig mit der Stirnfläche 7 der Mineralfaser-Rohrschale 1 ab.und wirkt somit als zusätzlicher Schutz für die Kante zwischen der Stirnfläche 7 und der Umfangswand 4 der Wickeldornöffnung 2. Der axiale Abstand h1 zwischen der Stützebene der Abstützteile 10 und dem oberen Rand des Stützrings 9 bzw. der Stirnfläche 7 kann entsprechend der axialen Höhe h2 des axialen Wandabschnittes 6 gewählt werden, oder diesen übersteigen. Im letzteren Fall ergibt die Differenz zwischen dem axialen Abstand h und der axialen Höhe h2 des axialen Wandabschnitt 6 ein Maß t, entsprechend dem der Hauptkörper des Deckels 5 gegenüber der Stirnfläche nach innen versetzt ist, so daß der Deckel 5 gewissermaßen versenkt ist. Die Wahl des Maßes t auch ggf. mit Null eine reine Zweckmäßigkeits- überlegung.The outer edge of the support ring 9 closes the essential 'chen approximately flush with the end face 7 of the mineral fiber tube shell 1 ab.und thus acts as additional protection for the edge between the end face 7 and the peripheral wall 4 of the mandrel opening 2. The axial distance h 1 between the support plane of the support parts 10 and the upper edge of the support ring 9 or the end face 7 can be chosen according to the axial height h 2 of the axial wall section 6 become, or exceed it. In the latter case, the difference between the axial distance h and the axial height h 2 of the axial wall section 6 gives a dimension t, according to which the main body of the cover 5 is offset inwards relative to the end face, so that the cover 5 is sunk to a certain extent. The choice of dimension t, possibly even with zero, is a purely practical consideration.

Der Körper weist weiterhin eine Umhüllung 17 beispielsweise in Form eines elastischen Gestricks auf, wie dies zum Schutz des Mineralfasermaterials an der empfindlichen Außenwand 3 der Mineralfaser-Rohrschale 1 an sich bekannt ist. Die Umhüllung 17 übergreift die Stirnfläche 7 und ist mit einem eingeschlagenen Rand 17a in der Wickeldornöffnung 2 zurückgeführt. Grundsätzlich könnte die Umhüllung 17 auf die Mineralfaser-Rohrschale 1 aufgebracht werden, bevor die Stützeinrichtung 8 befestigt wird, so daß die Lagerteile 13 mit ihren Einstechzungen 14 das Material der Umhüllung 17 an deren eingeschlagenem Rand 17a durchstoßen und so die Umhüllung 17 zusätzlich lagesichern. Dies ist jedoch infolge der straffen Anlage der Umhüllung 17 an der Außenwand 3 der Mineralfaser-Rohrschale 1 und der damit einhergehenden sicheren Lagerung durch Reibung in der Regel nicht erforderlich, und hätte den Nachteil, daß zumindest bei nicht ganz bündig mit der Stirnfläche 7 abschließendem Deckel 5 der obere Randbereich des Stützrings 9 sichtbar würde und optisch stören könnte. Gemäß der veranschaulichten bevorzugten Ausführungsform wird daher zunächst der Stützring 9 in die Wickeldornöffnung 2 eingesetzt und durch Einstechen der Lagerteile 13 dort lagegesichert. Die Umhüllung 17 wird anschließend aufgebracht und übergreift somit auch den Stützring 9 sowie ggf. die Montagezungen 16 der Lagerteile 13. Anschließend wird der Deckel 5 aufgesetzt, der den eingeschlagenen Rand 17a der Umhüllung 17 dabei glattzieht und zwischen dem freien Rand seines axialen Wandabschnittes 6 und der Innenfläche des Stützrings 9 einklemmt. Nach erfolgter Montage ist in der aus Fig. 1 ersichtlichen Weise daher lediglich die Umhüllung 17 sowie der radiale Hauptkörper des Deckels 5 von außen her sichtbar, der optisch sauber und ansprechend von dem sichtbaren Teil des eingeschlagenen Randes 17a der Umhüllung 17 umgeben ist.The body also has a covering 17, for example in the form of an elastic knitted fabric, as is known per se for protecting the mineral fiber material on the sensitive outer wall 3 of the mineral fiber tubular shell 1 . The sheath 17 engages over the end face 7 and is guided back into the mandrel opening 2 with a folded edge 17a. In principle, the sheathing 17 could be applied to the mineral fiber tube shell 1 before the support device 8 is fastened, so that the bearing parts 13 with their recesses 14 pierce the material of the sheathing 17 at the edge 17a thereof and thus additionally secure the sheathing 17. However, this is generally not necessary as a result of the tight contact of the sheath 17 on the outer wall 3 of the mineral fiber tubular shell 1 and the associated secure storage due to friction, and would have the disadvantage that at least when the cover is not completely flush with the end face 7 5 the upper edge region of the support ring 9 would be visible and could be optically disturbing. According to the illustrated preferred embodiment, the support ring 9 is therefore first inserted into the mandrel opening 2 and secured there by piercing the bearing parts 13. The covering 17 is then applied and thus also overlaps the Support ring 9 and possibly the mounting tongues 16 of the bearing parts 13. Then the cover 5 is put on, which smoothes the edge 17a of the casing 17 and clamps it between the free edge of its axial wall section 6 and the inner surface of the support ring 9. After assembly has been completed, only the casing 17 and the radial main body of the cover 5 can be seen from the outside in the manner shown in FIG. 1, which is visually clean and appealingly surrounded by the visible part of the folded edge 17a of the casing 17.

Aus Fig. 2 wird die Gestalt des in Fig. 1 im Schnitt dargestellten Stützringes 9 der Stützeinrichtung 8 klarer. In der rechten Hälfte von Fig. 2 sind zwei Lagerteile 13 in der montierten Stellung veranschaulicht, in der die Einstechzungen 14 in der aus Fig. 1 ersichtlichen Weise in das Material der Mineralfaser-Rohrschale 1 eingedrungen sind und die Eindringtiefe durch Anschlag der Montagezungen 16 an der Innenseite des Stützrings 9 begrenzt wird. In Fig. 2 ist weiterhin mit der Linie I-I die in Fig. 1 gewählte Schnittführung veranschaulicht.2, the shape of the support ring 9 of the support device 8 shown in section in FIG. 1 becomes clearer. In the right half of FIG. 2, two bearing parts 13 are illustrated in the assembled position, in which the indentations 14 have penetrated into the material of the mineral fiber tube shell 1 in the manner shown in FIG. 1 and the depth of penetration by abutment of the mounting tongues 16 the inside of the support ring 9 is limited. In Fig. 2 the line II selected in Fig. 1 is further illustrated with the line II.

Wegen vorstehend nicht näher angesprochender Einzelheiten wird ausdrücklich auf die Darstellung in den Fig. 1 und 2 verwiesen, die aus sich heraus verständlich ist.For details not mentioned above, reference is expressly made to the illustration in FIGS. 1 and 2, which is understandable in itself.

Claims (10)

1. Insbesondere als Schallschluckelement z. B. in Räumen dienender Körper mit einer Mineralfaser-Rohrschale mit wenigstens einer stirnseitigen Abdeckung in Form eines starren Deckels, dadurch gekennzeichnet, daß der Außendurchmesser des Deckels (5) kleiner ist als der Innendurchmesser der Wickeldornöffnung (2) und daß zur axialen Lagesicherung des Deekels (5) eine Stützeinrichtung (8) an der Umfangswand (4) der Wickeldornöffnung (2) vorgesehen ist, die den Deckel (5) mit von der Umfangswand (4) der Wickeldornöffnung (2) radial nach innen vorspringenden Abstützteilen (10) unterstützt.1. In particular as a sound absorption element z. B. in rooms serving body with a mineral fiber tube shell with at least one front cover in the form of a rigid lid, characterized in that the outer diameter of the lid (5) is smaller than the inner diameter of the mandrel opening (2) and that for the axial position securing of the disgust (5) a support device (8) is provided on the peripheral wall (4) of the mandrel opening (2), which supports the cover (5) with support parts (10) projecting radially inward from the peripheral wall (4) of the mandrel opening (2). 2. Körper nach Anspruch 1, dadurch gekennzeichnet, daß die Stützeinrichtung (8) ihrerseits mittels Lagerteilen (13) gehalten ist, die radial nach außen in die Umfangswand (4) der Wickeldornöffnung (2) eingedrückt sind.2. Body according to claim 1, characterized in that the support device (8) is in turn held by means of bearing parts ( 13 ) which are pressed radially outward into the peripheral wall (4) of the mandrel opening (2). 3. Körper nach Anspruch 2, dadurch gekennzeichnet, daß die Lagerteile (13) flächige Einstechzungen (14) aufweisen.3. Body according to claim 2, characterized in that the bearing parts (13) have flat indentations (14). 4. Körper nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß der Deckel (5) napfförmig mit einem umlaufenden axialen Wandabschnitt (6)ausgebildet ist und mit dem freien Rand des Wandabschnitts (6) auf den Abstützteilen (10) aufliegt.4. Body according to one of claims 1 to 3, characterized in that the cover (5) is cup-shaped with a circumferential axial wall section (6) and rests with the free edge of the wall section (6) on the support parts (10). 5. Körper nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß die Stützeinrichtung (8) einen zwischen der Umfangswand (4) der Wickeldornöffnung (2) und dem Rand (Wandabschnitt 6) des Deckels (5) angeordneten Stützring (9) aufweist.5. Body according to one of claims 1 to 4, characterized in that the support device (8) has a between the peripheral wall (4) of the mandrel opening (2) and the edge (wall section 6) of the cover (5) arranged support ring (9) . 6. Körper nach Anspruch 5, dadurch gekennzeichnet, daß die Abstützteile (M ) einstückig mit dem Stützring (9) ausgebildet sind.6. Body according to claim 5, characterized in that the support parts (M) are integrally formed with the support ring (9). 7. Körper nach Anspruch 6, dadurch gekennzeichnet, daß der Stützring (9) aus Metallblech besteht und die Abstützteile (10) als radial nach innen abgebogene Zungen ausgebildet sind.7. Body according to claim 6, characterized in that the support ring (9) consists of sheet metal and the support parts (10) are designed as radially inwardly bent tongues. 8. Körper nach einem der Ansprüche 2 bis 7, dadurch gekennzeichnet, daß die Lagerteile (13) als separate Bauteile ausgebildet sind, die den Stützring (9) in Druchbrüchen (15) durchsetzen.8. Body according to one of claims 2 to 7, characterized in that the bearing parts (13) are designed as separate components which penetrate the support ring (9) in breakthroughs (15). 9. Körper nach Anspruch 8, dadurch gekennzeichnet, daß die Lagerteile (13) in ihrem radial innerhalb des Stützrings (9) liegenden Teil wenigstens eine abgewinkelte Montagezunge (16) als Anschlag für die Einstechbewegung aufweisen.9. Body according to claim 8, characterized in that the bearing parts (13) in their radially inside the support ring (9) lying part have at least one angled mounting tongue (16) as a stop for the piercing movement. 10. Körper nach Anspruch 9, dadurch gekennzeichnet,daß die Montagezunge (16) in den Spalt zwischen dem Stützring (9) und dem Rand (Wandabschnitt 6) des Deckels (5) eingreift.10. Body according to claim 9, characterized in that the mounting tongue (16) engages in the gap between the support ring (9) and the edge (wall section 6) of the cover (5).
EP82110714A 1981-11-19 1982-11-19 A body, used especially for sound absorption, e.g. in rooms, in the form of a cylindrical tube made of mineral fibres Expired EP0080188B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT82110714T ATE14329T1 (en) 1981-11-19 1982-11-19 PARTICULARLY AS A SOUND ABSORBING ELEMENT E.G. IN ROOMS SERVING BODY WITH A MINERAL FIBER PIPE SHELL.

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE3145909 1981-11-19
DE3145909 1981-11-19
DE8205895 1982-03-03
DE8205895U 1982-03-03

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EP0080188A1 true EP0080188A1 (en) 1983-06-01
EP0080188B1 EP0080188B1 (en) 1985-07-17

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Application Number Title Priority Date Filing Date
EP82110714A Expired EP0080188B1 (en) 1981-11-19 1982-11-19 A body, used especially for sound absorption, e.g. in rooms, in the form of a cylindrical tube made of mineral fibres

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DE (1) DE3264790D1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT515382A1 (en) * 2014-02-04 2015-08-15 Vasile Lic Dorolti sound absorber

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR68694E (en) * 1955-05-23 1958-06-09 Sound absorbing body
US3237714A (en) * 1964-02-17 1966-03-01 Raymond L Surine Sound absorbing structural block with through passage and transverse baffles
DE2725398A1 (en) * 1977-06-04 1978-12-07 Gruenzweig Hartmann Glasfaser Pipework split lagging impact protecting cover - has elastic netting wrapped over lagging and held by inserted staples
DE2746849A1 (en) * 1977-10-19 1979-04-26 Volmer Betonwerk Gmbh & Co Kg Construction block for noise screen wall - has E=shaped plan with sound absorbent sealing panels across open chambers
EP0024044B1 (en) * 1979-08-10 1984-07-18 G + H MONTAGE GmbH Sound absorber, in particular for anechoic chambers

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR68694E (en) * 1955-05-23 1958-06-09 Sound absorbing body
US3237714A (en) * 1964-02-17 1966-03-01 Raymond L Surine Sound absorbing structural block with through passage and transverse baffles
DE2725398A1 (en) * 1977-06-04 1978-12-07 Gruenzweig Hartmann Glasfaser Pipework split lagging impact protecting cover - has elastic netting wrapped over lagging and held by inserted staples
DE2746849A1 (en) * 1977-10-19 1979-04-26 Volmer Betonwerk Gmbh & Co Kg Construction block for noise screen wall - has E=shaped plan with sound absorbent sealing panels across open chambers
EP0024044B1 (en) * 1979-08-10 1984-07-18 G + H MONTAGE GmbH Sound absorber, in particular for anechoic chambers

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT515382A1 (en) * 2014-02-04 2015-08-15 Vasile Lic Dorolti sound absorber
AT515382B1 (en) * 2014-02-04 2015-12-15 Vasile Lic Dorolti sound absorber

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Publication number Publication date
EP0080188B1 (en) 1985-07-17
DE3264790D1 (en) 1985-08-22

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