DK155642B

DK155642B - INSULATION ELEMENT

Info

Publication number: DK155642B
Application number: DK074384A
Authority: DK
Inventors: Per-Olof Flythstroem
Original assignee: Stockfors Oy Ab
Priority date: 1983-02-18
Filing date: 1984-02-17
Publication date: 1989-05-01
Also published as: FI66320C; NO154873C; NO154873B; NO840583L; SE8400817D0; DK155642C; FR2541180B1; DE3403489A1; FI830555A0; FI66320B; SE455108B; SE8400817L; DK74384D0; FR2541180A1; DK74384A

Description

DK 155642 BDK 155642 B

Opfindelsen angår et lydisoleringselement specielt til fartøjer, hvilket lydisoleringselement består af mindst tre lag, af hvilke de ydre lag hensigtsmæssigt er stenuld og mellemlaget eller -lagene hensigtsmæssigt er 5 glasuld. Det er kendt at anvende stenuld som isolering ved elementer. Herved er elementets lydisolering af størrelsen 33 dB. Ved at kløve stenulden på tværs i to omtrent lige tykke skiver tilvejebringes en lydisoleringsværdi på 36 dB. Ved at etablere en luftsprække 10 tilvejebringes en lydisolering på 38 dB. Ved at anvende glasuld i stedet for luft mellem stenuldsski verne tilvejebringes en lydisolering på 39 dB.BACKGROUND OF THE INVENTION 1. Field of the Invention This invention relates to a sound insulating element especially for vessels, said sound insulating element comprising at least three layers, of which the outer layers are suitably rock wool and the intermediate layer (s) is suitably glass wool. It is known to use stone wool as insulation for elements. Hereby, the element's sound insulation of size is 33 dB. By splitting the stone wool across two roughly thick slices, a sound insulation value of 36 dB is obtained. By establishing an air crack 10, a sound insulation of 38 dB is provided. By using glass wool instead of air between the stone wool shields, a sound insulation of 39 dB is provided.

Hidtil er elementer af ovennævnte art blevet anvendt til bygning af fartøjsmellemvægge. Det har vist sig, 15 at disse elementer ikke opfylder de lydisoleringskrav, som specielt nye købere af krydstogtsfartøjer i luk-susklasse stiller til deres fartøjer. Ved at øge elementernes tykkelse tilvejebringes bedre lydisoleringsegenskaber. I praksis kan man dog ikke øge elementernes 20 tykkelse nævneværdigt over den nuværende, eftersom pladsen i fartøjerne er begrænset. Også æstetiske og praktiske synspunkter taler for tyndere vægge. Ved at øge elementernes tykkelse kan endvidere monteringsomkostningerne stige afgørende, på grund af at elementerne 25 i dag er på grænsen af, hvad loven tillader, at en person løfter, hvorfor et større element kræver to montører i stedet for en.Hitherto, elements of the aforementioned kind have been used for the construction of vessel partitions. It has been found that these elements do not meet the sound insulation requirements that special new cruise ship buyers impose on their vessels. Increasing the thickness of the elements provides better sound insulation properties. In practice, however, the thickness of the elements 20 cannot be significantly increased over the present, as the space in the vessels is limited. Aesthetic and practical views also speak for thinner walls. Furthermore, by increasing the thickness of the elements, mounting costs can increase significantly, because the elements 25 today are at the limit of what the law allows a person to lift, which is why a larger element requires two installers instead of one.

Det er formålet med opfindelsen at tilvejebringe et lydisoleringselement, som fjerner ovennævnte ulemper 30 ved kendte elementer ved at tilbyde bedre lydisolerings-egenskaber i elementer af samme tykkelse.It is an object of the invention to provide a sound insulating element which removes the above-mentioned drawbacks 30 of known elements by offering better sound insulating properties in elements of the same thickness.

Dette opnås ifølge opfindelsen ved at indrette et lydiso- 2This is achieved according to the invention by arranging a sound isolation 2

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leringselement af den i indlednngen nævnte art, som nærmere angivet i krav l's kendetegnende del.a learning element of the kind mentioned in the preamble, as specified in the characterizing part of claim 1.

Det har vist sig, at indlægning af U-profiler i lydisoleringselementer forøger elementernes lydisole-5 ring betydeligt. Specielt fordelagtigt er et sådant arrangement, hvor U-profilerne er anordnet skiftevis ved hvert ydre lags - f.eks. stenuld - indvendige og udvendige side. Med dette arrangement har det været muligt at øge elementets lydisolering fra værdien 39 dB til værdien 44 dB.It has been found that the insertion of U-profiles into sound insulation elements significantly increases the sound insulation of the elements. Particularly advantageous is one such arrangement in which the U-profiles are arranged alternately at each outer layer - e.g. stone wool - inside and outside. With this arrangement it has been possible to increase the sound insulation of the element from the value 39 dB to the value 44 dB.

Limningen af U-profiler til det ydre lag forøger desuden elementets stivhed.In addition, the bonding of U-profiles to the outer layer increases the stiffness of the element.

Opfindelsen vil nu blive nærmere forklaret under henvisning til tegningen, på hvilken fig. 1 viser et lydisoleringselement set forfra, fig. 2 viser et tværsnit af et lydisoleringselement, og fig. 3 viser et tværsnit af et lydisoleringselement, hvor U-profilerne er anordnet på anden måde end i 20 fi9* 2* I fig. 1 ses lydisoleringselementet 1 forfra, samt U-profiler 6, 8 og 10, som ligger inde i elementet og er tegnet med punkteret streg. U-profilerne er blevet trykket ind i det ydre lags stenuld. Ved at 2^ lime U-profilerne til det ydre lag tilvejebringes en bedre stivhed for elementet.The invention will now be explained in more detail with reference to the drawing, in which 1 is a front view of a sound insulation element; FIG. 2 is a cross-sectional view of a sound insulating element; and FIG. 3 shows a cross-section of a sound insulating element where the U-profiles are arranged differently than in 20 fi9 * 2 * In fig. 1, the sound insulation element 1 is seen from the front, as well as U-profiles 6, 8 and 10, which are inside the element and are drawn with a dashed line. The U-profiles have been pressed into the stone wool of the outer layer. Adhering the 2 ^ U profiles to the outer layer provides a better stiffness for the element.

33

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Fig. 2 viser et tværsnit af et lydisoleringselement. Elementet består af to yderlag 3 og 5, som er stenuld. Mellem disse er der anordnet et glasuldlag 4.FIG. 2 shows a cross section of a soundproofing element. The element consists of two outer layers 3 and 5, which are stone wool. Between these, a glass wool layer 4 is arranged.

I figuren ses også U-profilerne 6, 8 og 10, samt 5 de modsat disse vendende U-profiler 7, 9 og 11.The figure also shows the U-profiles 6, 8 and 10, and 5 the opposite of these facing U-profiles 7, 9 and 11.

Ved at arrangere U-profilerne skiftevis på den udvendige og den indvendige side af hvert yderlag tilvejebringes ca. 2 dB bedre lydisolering (44 dB) end, hvis alle U-profiler skulle anordnes på samme side 10 af respektive yderlag. Ud fra et produktionsteknisk synspunkt er profilerne blevet anordnet således, at de vender i modsatte retninger i de to yderlag.By arranging the U-profiles alternately on the outer and inner sides of each outer layer, approx. 2 dB better sound insulation (44 dB) than if all U-profiles were to be arranged on the same side 10 of respective outer layers. From a production technical point of view, the profiles have been arranged so that they face in opposite directions in the two outer layers.

Det er imidlertid også muligt at anordne U-profilerne skiftevis, f.eks. som vist i fig. 3. Med sidstnævnte 15 arrangement tilvejebringes en lydisolering af samme klasse som ifølge arrangementet i fig. 2.However, it is also possible to arrange the U-profiles alternately, e.g. as shown in FIG. 3. With the latter arrangement, a sound insulation of the same class as according to the arrangement of FIG. 2nd

Det har vist sig, at hvis man anvender U-profiler af et eller andet tungt materiale, f.eks. stål, er deres lydisoleringsegenskaber betydeligt bedre, end 20 hvis man anvender U-profiler af et eller andet lettere emne, f.eks. aluminium eller plast. Aluminium er desuden dyrere, og har ikke samme brandsikkerhedsegenskaber som stål. Hvis man anvender U-profiler af stål, er den vægtforøgelse, som dette medfører, ca.It has been found that using U-profiles of some heavy material, e.g. steel, their sound insulation properties are significantly better than 20 if using U-profiles of some lighter item, e.g. aluminum or plastic. Furthermore, aluminum is more expensive and does not have the same fire safety properties as steel. If steel U profiles are used, the weight gain that this entails is approx.

2 25 25%, hvorfor elementernes vægt stiger fra 21 kg/m 2 til 26 kg /m . Denne værdi ligger dog fortsat under den værdi, som det tillades en mand at løfte ved vedvarende monteringsarbejde, hvorfor elementet ifølge opfindelsen ikke forårsager ekstra omkost-30 ninger ved monteringen i form af ekstra arbejdskraft.2 25 25%, which is why the weight of the elements increases from 21 kg / m 2 to 26 kg / m. However, this value remains below the value that a man is allowed to lift by continuous mounting work, so the element according to the invention does not cause extra costs for mounting in the form of extra labor.

Claims

A sound insulation element (1), especially for vessels, said sound insulation element consisting of at least three layers (3, 4, 5) of which the outer layers (3, 5) are suitably rock wool and the intermediate layer (4) or layers are suitably 5 glass wool, characterized in that U-profiles (6-11) are arranged at the outer layers (3, 5).

Element according to claim 1, characterized in that the U-profiles (6-11) are arranged at the outer layers (3 ', 5) along the entire length of the element (1).

3. An element according to claim 1 or 2, characterized in that the U-profiles (6-11) are inserted into the outer layers (3, 5) with the flanges in the front so that the body of the profiles is at the surface of said layer.

4. An element according to any one of the preceding claims, characterized in that the U-profiles (6-11) are alternately located at the inner and outer sides of each outer layer (3, 5).

Element according to any one of the preceding claims, characterized in that the U-profiles (6-11) are arranged alternately against one another (6, 7; 8, 9; 10, 11) at the two outer layers (3, 5). ) so that the adjacent U-pro files are on the corresponding outer and inner sides of the outer layer (3, 5).

Element according to any one of the preceding claims, characterized in that the U-profiles (6-11) consist of a relatively heavy, non-combustible material, preferably steel. DK 155642B

Element according to any one of the preceding claims, characterized in that the U-profiles (6-11) are glued to the outer layers (3, 3).