WO1999008038A1 - Sound insulation member - Google Patents

Abstract

A sound insulation member for application to plumbing equipment and piping for air conditioning equipment in buildings. The sound insulation member has a sound insulation layer having a surface density of 1.5 to 5.0 kg/m2 and a noise absorption layer having a thickness of 4.0 to 10.0 mm, so that it is lightweight and easy to handle, and has an excellent sound insulation performance.

Description

 Akitoda

 Soundproof material

TECHNICAL FIELD The present invention relates to a soundproof member applied to piping such as a plumbing device and an air conditioner of a building. More specifically, the present invention relates to a soundproof member that is lightweight, has excellent handleability, and has excellent soundproof performance. BACKGROUND ART In recent years, as the comfort of indoor environments and living spaces is increasingly demanded, noise measures have been greatly emphasized, and rational and reliable measures against plumbing and other plumbing noises have been made by the industry. Development is underway. In order to respond to such demands, a sound-insulating member has been proposed in which a sound-insulating layer made of an asphalt sheet is laminated with a power-sound absorbing layer such as an air-cushion sheet, glass wool, and phenolate.ぁHowever, in the above-mentioned soundproofing members, in order to obtain a sufficient soundproofing effect, a method of increasing the surface density of the sound insulating layer or increasing the thickness of the sound absorbing layer has been adopted. For example by increasing the surface density of the sound insulation layer, if attempted to secure a sufficient sound insulation effect, 5 0 -.. 1 0 O kg / m not a Banara be a high surface density such ^2, in this case, The weight of the soundproofing member also increases, and the handleability deteriorates. Also, when the soundproofing member is attached to the surface of the pipe, the soundproofing member is heavy, so that if the soundproofing member is dripped or peeled off, a trouble may occur. On the other hand, when the method of increasing the thickness of the sound absorbing layer is used, a thickness of 10.0 to 20.O mm is required to obtain a sufficient soundproofing effect, and it becomes bulky, As a result, when the soundproofing member is attached to the peripheral surface of the pipe, there is a possibility that the pipe may not be piped into the space at the construction site. The present invention has been made in view of such circumstances, and has as its object to provide a soundproof member that is lightweight, has excellent handleability, and has excellent soundproof performance. DISCLOSURE OF THE INVENTION In order to achieve the above object, according to the present invention, a soundproofing member applied to a plumbing system of a building water supply / drainage device or an air conditioner, and has a surface density of 1.5 to 5.O kg / m. ² of the sound insulation layer and the thickness of 4. 0: the soundproofing member characterized by having a sound absorbing layer 10. Omm to its gist. For the soundproofing member having such a main configuration, a combination of the sound insulation layer, the vibration suppression layer, the vibration suppression layer, and the sound absorption layer, a combination of the sound insulation layer, the vibration suppression layer, and the sound absorption layer, the sound insulation layer, the vibration suppression layer, and the sound absorption layer The combination of the layers, or the combination of the sound insulation layer and the sound absorption layer, may take the form of misalignment. Incidentally, as the sound absorbing layer, a layer made of a urethane chip product of a recycled material can be suitably used. The soundproofing member may have a form in which the outer surface is covered with a heat-shrinkable film such as polyvinyl chloride, polyethylene, polyester, polypropylene, and polystyrene. Further, in this soundproofing member, both ends of the pipe can be left attached to the circumference of the pipe so as to be slidable. The soundproof tube member of the present invention is lightweight because it has a sound insulating layer with an area density of 1.5 to 5. O kg / m ^{2 and} a sound absorbing layer with a thickness of 4.0 to 10. Omm. , take It is easy to handle and has excellent soundproofing performance. Further, in the soundproofing member of the present invention, the heatproofing of the heat-shrinkable film provided on the outer surface allows the soundproofing member to be fastened and attached to the pipe. It does not require any other means, and can be easily and securely mounted by heating, making processing easy. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an enlarged sectional view of a main part showing a soundproof member of the present invention.

 FIG. 2 is a perspective view showing the soundproof member of the present invention.

 FIG. 3 is a perspective view showing a state where the soundproof member of the present invention is applied to a straight pipe.

 FIG. 4 is an enlarged sectional view of a main part showing another example of the soundproofing member of the present invention.

FIG. 5 is a perspective view showing a state in which the soundproof member of the present invention is piped. BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, a soundproof member of the present invention will be described in detail according to an embodiment shown in the drawings. INDUSTRIAL APPLICABILITY The soundproofing member of the present invention is applied to piping such as a water supply / drainage device or an air conditioner of a building, and the piping is a conventionally used straight pipe or L pipe, and its shape and thickness are large. The length and length are arbitrary. The soundproofing member of the present invention may be attached to the peripheral surface of the pipe via an adhesive or a pressure-sensitive adhesive, or may be wound around the peripheral surface of the pipe and fastened with a tape or a belt from above. It is possible to adopt a form in which it is mounted at the site, or a form in which it is mounted around the piping in advance so that the work on the site can be omitted. Examples of forms that can eliminate the mounting work include straight pipes and L pipes that are used. There is a type in which a soundproofing member corresponding to the shape and size is attached in advance around a pipe via an adhesive or an adhesive. The soundproofing member 11 shown in Fig. 1 is also of the type that is previously attached to the piping 10 circumference, and the outer surface is made of a heat-shrinkable film 12 of polyvinyl chloride, polyethylene, polyester, polypropylene, polystyrene, etc. It is what covered. In the case of the soundproofing member 11 whose outer surface is covered with the heat-shrinkable film 12, the soundproofing member 11 is fitted into the pipe 10 without using an adhesive or an adhesive, and is heated to heat the film 12 on the outer surface. Can be thermally contracted, and the soundproof member 11 can be tightened and attached to the pipe 10. Further, like the soundproof member shown in FIG. 3, the both ends of the pipe 10 may be left so as to be slidably attached to the peripheral surface of the pipe 10. Fig. 3 shows the case where the soundproofing member 11 is applied to the pipe 10 (straight pipe). The soundproofing member 11 is attached, leaving both ends fitted into the L pipe, and this can be slid. Things. That is, the soundproofing member 11 in FIG. 3 has the outer surface covered with the above-described heat-shrinkable film 12, and the soundproofing member 11 is fitted to the pipe 10 without using an adhesive or an adhesive. Then, this is heated to thermally shrink the film 12 on the outer surface, so that the soundproof member 11 is fastened and attached to the pipe 10. Thereby, the soundproof member 11 can be slid around the pipe 10. For this reason, if the soundproofing member 11 is attached to the pipe 10 in advance, if it becomes necessary to cut the pipe 10 to an appropriate length at the site according to the situation of the factory, the soundproofing member 11 is required. The pipe 10 can be slid to one side of the pipe 10 and only the other end of the pipe 10 needs to be cut, and the length of the pipe 10 can be adjusted more efficiently. C Figures 1 and 2 As shown in the figure, the soundproof member 11 of the present invention has a sound insulating layer 13 and a sound absorbing layer 15. The material is not limited as long as the sound insulation layer 13 has a surface density of 1.5 to 5. O kg / m ² . Preferably, in addition to the resin polymerized with vinyl chloride alone, at least one or more of the monomers copolymerizable with the vinyl chloride monomer is randomized. Vinyl chloride copolymer resin obtained by copolymerization or block copolymerization, such as vinyl acetate vinyl chloride copolymer, ethylene-vinyl chloride copolymer, vinylidene chloride-vinyl chloride copolymer, or vinyl chloride monomer And a vinyl chloride graft copolymer resin obtained by graft copolymerization, such as a vinyl chloride resin such as an ethylene monoacetate-vinyl chloride graft copolymer or a polyurethane monovinyl chloride graft copolymer. Can be mentioned. If the surface density of the sound insulating layer 13 is less than 1.5 kg / m ² , sufficient sound insulation performance cannot be obtained. If the surface density exceeds 5.0 kg / m ² , the sound insulating layer 13 The sound insulation layer 13 has a surface density (kg Zm ^{2) in the} above range, because the weight of the sound insulation layer 13 itself becomes heavy, and the workability is deteriorated. ). The sound insulation layer 13 is filled with a filler such as calcium carbonate, talc, magnesium oxide, alumina, titanium oxide, barite, iron oxide, zinc oxide, graphite, etc. to improve sound insulation. Can be. The filler is preferably filled with a filling amount of 50 to 95% by weight so that the mechanical strength of the sound insulating layer 13 does not decrease while securing sufficient sound insulating properties. Needless to say, in addition to the improvement of the sound insulation, the filling of the filler can also adjust the viscosity of the sound insulation layer 13 and reduce the mixing cost. On the other hand, the sound-absorbing layer 15 is made of a resin such as urethane, black lipene, styrene-butadiene copolymer, polyethylene, polypropylene, ethylene vinyl acetate, and styrene, alone or in combination. It is 10.0 mm. When the thickness of the sound absorbing layer 15 is less than 4.0 mm, a sufficient sound absorbing effect cannot be obtained. When the thickness is more than 10.0 mm, the sound absorbing layer 15 becomes bulky. When 1 is installed on the circumference of the pipe 10, the pipe 10 is There is a risk of causing a situation where piping cannot be performed. The sound absorbing layer 15 preferably has an open-cell structure in order to ensure better sound absorbing properties. The expansion ratio when the sound absorbing layer 15 has a foamed structure is arbitrary, but is preferably from 10 to 50 times from the viewpoint of ensuring good sound absorbing properties. The sound absorbing layer 15 may be perforated, slitted, or the like to further enhance the sound absorbing properties. The soundproofing member 11 of the present invention includes a sound-insulating layer 13 and a sound-absorbing layer 15, as well as a damping layer 14 and a vibration-proofing layer. Anything can be added and used freely. More specifically, a sound insulating layer, a vibration damping layer, a vibration damping layer, and a sound absorbing layer, a sound insulating layer, a damping layer, and a sound absorbing layer, a sound insulating layer, a vibration damping layer, and a sound absorbing layer. It can take any form. In addition, by appropriately determining and using the type of each layer, the stacking order, the thickness of each layer, the number of layers, and the like according to the use and use state of the soundproof member, a soundproof member optimal for the use and use state can be produced. Can be. Examples of the vibration damping layer 14 include a material obtained by compounding rubber with the vinyl chloride resin. In this case, the rubber includes acrylonitrile-butadiene rubber (NBR), styrene-butadiene rubber (SBR), butadiene rubber (BR), natural rubber (NR), isoprene rubber (IR) and the like. The rubber is blended for obtaining good viscoelastic properties at room temperature, and its blending amount is preferably 10 to 80% by weight. If the amount is more or less than this range, sufficient viscoelastic properties at room temperature cannot be obtained. The damping layer 14 can be filled with a filler like the sound insulating layer 13 to improve the damping property. As the filler, the same one as exemplified in the place of the sound insulation layer 13 can be used. The vibration-proof layer is mainly made of rubber-based materials such as acrylonitrile-butadiene rubber (NBR), styrene-butadiene rubber (SBR), butadiene rubber (BR), natural rubber (NR), and isoprene rubber (IR). And those obtained by blending a resin with these rubber-based materials. If necessary (for adjusting the hardness), the vibration isolating layer may be filled with a filler such as carbon black or calcium carbonate. When a sound damping layer is used as the sound insulating member 11 in addition to the sound insulating layer and the sound absorbing layer, the sound insulating layer and the sound damping layer may be replaced with those having different layers. It is also possible to use a single layer of sound insulation and vibration damping layer having these properties. In this case, as the sound insulation damping layer, for example, a resin matrix made of a vinyl chloride resin and filled with a piece of Myricin as shown in JP-A-8-73648, A resin matrix composed of a vinyl chloride resin and filled with myriki pieces and calcium carbonate can be used. The soundproofing member 11 of the present invention has a soundproofing layer, a sound absorbing layer, and, if necessary, a vibration damping layer and a vibration damping layer, so that an excellent soundproofing effect can be derived. For example, the soundproof member 11 shown in FIG. 1 has a sound insulation layer 13, a sound absorption layer 15, and a vibration suppression layer 14, and the sound insulation layer 13, the vibration suppression layer 14, and the sound absorption layer 15 The sound-absorbing member 11 was attached to the outer periphery of the pipe 10 so that the sound-absorbing layer 15 of the sound-insulating member 11 was located on the side of the pipe 10 via the adhesive layer 16, which generated from the pipe 10. Water supply and drainage noise is reduced by the sound absorption and drainage noise being absorbed by the sound absorbing layer 15, the vibration caused by the noise from the sound absorbing layer 15 being attenuated by the vibration damping layer 14, and the shirt being blocked by the sound insulation layer 13. Is measured. Example A sound insulation sheet (thickness: 2 mm) having a surface density shown in Table 1 below, in which ballite was filled in a resin matrix made of vinyl chloride resin, and urethane were crushed and re-formed. Molded chip product (density: 0.05) (manufactured by INOAT CORPORATION). The sound-absorbing sheet (thickness shown in Fig. 4) is laminated and integrated with the sound absorbing sheet having the thickness shown in Table 1. Produced. This soundproofing member 11 is attached around the pipe 10 (straight pipe) with the sound absorbing sheet 15 inside, and a polyethylene film 12 is laminated on the outer surface of the sound insulating sheet 13 and heated. Then, the polyethylene film 12 was shrunk, and the soundproof member 11 was attached to the pipe 10. table 1

上記例 1〜 1 6の防音部材を適用した各サンプルを、 図 5に示すように配管し て水を流したときの排水騒音を配管等（排水管） 1 0から l m離れた所に配置し た騒音計 （L A— 2 1 0、 小野測器株式会社製） で拾い、 騒音レベルを測定し、 F F Tアナライザ一 （C F— 3 5 0、 小野測器株式会社製） で周波数分析を行つ た。 その結果を表 2に示す。 尚、 防音部材を取り付けていないものを用い、 これ にっ 、ても同様に排水騒音を測定した。 尚、 表 2には、 当該防音部材の持ち運び作業や配管への取付作業における取り 扱い性の善し悪しといった点について、 これを作業性として、 〇、 △、 Xの三段 階の評価を行った。 同時に配管への取付のし易さ、 配管に取り付けた後に配管ス ペースへ収納し易さといつた点についても、 施工性として、 同じく〇、 △、 Xの 三段階の評価を行った。 表 2

As shown in Fig. 5, each sample to which the soundproofing members of Examples 1 to 16 above were applied was placed at a location lm away from pipes (drain pipes) 10 when draining noise was generated when water was flowed through pipes. The sound level was measured by a sound level meter (LA-210, manufactured by Ono Sokki Co., Ltd.), the noise level was measured, and the frequency was analyzed by an FFT analyzer (CF-350, manufactured by Ono Sokki Co., Ltd.). . The results are shown in Table 2. In addition, the thing which does not attach a soundproof member was used, and the drainage noise was measured in the same manner. Table 2 shows the work of carrying the soundproofing member and attaching it to piping. With regard to the point of good and bad handling, this was evaluated as a workability in three stages of 〇, △, and X. At the same time, the ease of installation on the piping and the ease with which it can be stored in the piping space after installation on the piping were also evaluated in terms of workability in three stages, namely, △, △, and X. Table 2

表 2から、 防音部材を取り付けていないもの （管のみのもの） が約 5 4 で あるのに対し、 防音部材を取り付けた例 1〜例 1 6のものは、 9. 8 d Bから、 高いものでは 1 7 . 6 d Bもの低減効果が確認された。 また、 作業性、 施工性に ついて見たとき、 例 1〜例 3、 例 5〜例 7並びに例 1 0〜例 1 2のものは、 いず れも〇の評価であった。 また、 例 4、 例 8、 例 1 2〜例 1 5については、 作業性 もしくは施工性のいずれかが△の評価であった。 例 1 6については作業性、 施工 性共に厶の評価となった。 また、 表 2には記載しなかったが、 面密度が 5 k m² 以上の遮音シートを用いたものについては、 作業性は Xの評価となり、 厚さ が 1 0 mm以上の吸音シートを用いたものについては、 施工性が Xの評価となつ た。

According to Table 2, the number of samples without soundproofing members (tube only) is about 54, whereas those with soundproofing materials 1 to 16 are higher than 9.8 dB. In this case, a reduction effect of 17.6 dB was confirmed. In terms of workability and workability, all of Examples 1 to 3, Examples 5 to 7, and Examples 10 to 12 were evaluated as 〇. In Example 4, Example 8, Example 12 to Example 15 Alternatively, any of the workability was evaluated as △. In Example 16 both workability and workability were evaluated as good. Although not described in Table 2, for which areal density using 5 miles ² or more sound insulating sheet, becomes an evaluation of X, thickness using 1 0 mm or more sound absorbing sheet workability For those, the workability was rated as X.

Claims

Scope of word blue 1. shall apply soundproof member to be applied to the pipe such as plumbing device or air conditioner of a building, the surface density of 1. 5 to 5. 0 kg // sound insulation layer and the thickness of m ² is 4.0 to 10. A soundproofing member characterized by having a sound absorbing layer of 0 mm. 2. The sound insulation member is a combination of a sound insulation layer, a vibration suppression layer, a vibration insulation layer, and a sound absorption layer, a combination of a sound insulation layer, a vibration suppression layer, and a sound absorption layer, a combination of a sound insulation layer, a vibration insulation layer, and a sound absorption layer. 2. The soundproofing member according to claim 1, wherein the member comprises a combination of a sound insulating layer and a sound absorbing layer, which is L ヽ. 3. The soundproofing member according to claim 1, wherein the sound absorbing layer is made of a urethane chip product of a recycled material. 4. The sound insulation according to any one of claims 1 to 3, wherein the outer surface of the sound insulation member is covered with a heat-shrinkable film such as polyvinyl chloride, polyethylene, polyester, polypropylene, and polystyrene. Element. 5. The soundproofing member according to any one of claims 1 to 4, wherein both ends of the pipe are left slidably attached to a peripheral surface of the pipe.