JP2011033055A - Sound insulation sheet for elbow - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a sound insulation sheet for an elbow easily mountable on the elbow of an existing pipe even in a narrow space. <P>SOLUTION: The sound insulation sheet 4 for an elbow comprising a sound insulation sheet mainly composed of a sound absorbing material of a foamed resin sheet, and having band-like parts 2 at both ends wound around the outer peripheries of pipe ends of the elbow, and pleats 3 formed on both sides of an intermediate part, forms a bowl-shaped part 9 matching the outer shape of the elbow by making end faces of the pleats to butt to with each other, and end faces of the band-like parts to butt to end faces of the pleats, and by sticking an adhesive tape 14 having stretchability and waterproofing properties thereon. An intermediate fixing tape piece 10 long enough to go around the elbow is formed by extending a part of the adhesive tape, and end fixing adhesive tape pieces 11 are provided on the circumferential faces of the band-like parts for winding around and fixing the band-like parts to the outer peripheries of the pipe ends of the elbow. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

本発明は、配管に組み込まれたエルボへの取り付けに適した遮音シートに関する。   The present invention relates to a sound insulation sheet suitable for attachment to an elbow incorporated in a pipe.

従来、硬質塩化ビニール製の排水管及びエルボを使用して配管を構成した場合、排水の騒音が配管から漏れ出し、住宅の静粛性が損なわれるのでこれを防止するために配管に遮音シートを巻き付けることが行われている。また、この遮音シートとして発泡樹脂に合成樹脂シートを重層したものが提案されているが（特許文献１）、配管周囲には結露を生じることがあり、これは戸建住宅の場合、カビや木材の腐蝕の原因になって好ましくないので、出願人は、内層が発泡ポリウレタンからなる吸音材で形成され、中間層がポリ塩化ビニールシートで形成され、外層が不織布シートで形成された三層構成の遮音シートを提案した。この提案した遮音シートは、排水管や継手で発生する騒音の漏れを防ぐと同時に外層を形成する不織布シートが外部衝撃などにより遮音シート材が破損することや表面に結露することを防止でき、結露発生に伴うカビや木材の腐食を防げる利点がある。
Conventionally, when piping is constructed using drainage pipes and elbows made of hard vinyl chloride, the noise of the drainage leaks from the pipes and the quietness of the house is impaired, so a sound insulation sheet is wrapped around the pipes to prevent this. Things have been done. In addition, a foamed resin layered with a synthetic resin sheet has been proposed as this sound insulation sheet (Patent Document 1), but there are cases where condensation occurs around the pipe, which is caused by mold or wood in a detached house. The applicant has a three-layer structure in which the inner layer is formed of a sound absorbing material made of polyurethane foam, the intermediate layer is formed of a polyvinyl chloride sheet, and the outer layer is formed of a non-woven sheet. A sound insulation sheet was proposed. This proposed sound insulation sheet prevents the leakage of noise generated in drain pipes and joints, and at the same time prevents the nonwoven sheet forming the outer layer from being damaged by the external impact, etc. This has the advantage of preventing mold and wood from corroding.

排水管やエルボにこの遮音シートを予め被せておけば、そのまま配管施工することで遮音形の配管路が完成するが、既設の排水管やエルボに対しては、遮音シートを巻きつけ更にそれを固定するために接着テープなどを巻いたり固定具を取り付ける作業が必要で、この作業は配管が狭い空間に設けられていたり壁に接近していると困難性が増す。出願人はこの三層構成の遮音シートをエルボの湾曲した周面にきれいに巻き付けできるように、図１乃至図３に見られるように、両端部にエルボ１の管端外周へ捲回される帯状部２を形成すると共に中間部の両側に襞部３を形成したものとし、これの襞部３の端面同士もしくは襞部３の端面と帯状部２の端面を互いに突き合わせた状態でエルボ１の周面に接着剤や両面接着テープなどで貼り付け、図４のように全周を覆うことを試みた。これによればエルボを遮音シート４で比較的きれいに覆うことができるが、その突合せ部をテープで覆えばより一層遮音効果や防水性も向上して望ましいと考えた。   If you cover this drainage pipe or elbow with this sound insulation sheet in advance, the pipe construction of the sound insulation type will be completed by installing the pipe as it is, but wrap the sound insulation sheet around the existing drain pipe and elbow and then apply it. In order to fix it, it is necessary to wrap an adhesive tape or the like and attach a fixing tool. This operation becomes more difficult when the pipe is provided in a narrow space or close to a wall. As shown in FIG. 1 to FIG. 3, the applicant is able to wind the sound insulation sheet having the three-layer structure around the curved peripheral surface of the elbow. It is assumed that the flange portion 3 is formed on both sides of the intermediate portion and the end surface of the flange portion 3 or the end surface of the flange portion 3 and the end surface of the belt-like portion 2 face each other. An attempt was made to affix the entire surface with an adhesive or double-sided adhesive tape to cover the entire circumference as shown in FIG. According to this, the elbow can be covered with the sound insulating sheet 4 relatively cleanly, but it was considered desirable to further improve the sound insulating effect and waterproofness if the butt portion is covered with tape.

特開平１０−４７５８３JP 10-47583 A

しかし、上記のような襞部３を持った形状の遮音シート４は、エルボが施工前の単体部品状態であるときは、その全周に貼り付け、さらに襞部３の突合せ部を防水等のためにテープで覆うことができるが、配管済のエルボを遮音する場合は、配管周囲に十分な作業空間が存在しないと、大幅に貼り付け作業に時間が掛かり施工状態も良好にならないという不都合が予想される。   However, when the elbow is in the state of a single component before construction, the sound insulation sheet 4 having the shape of the flange 3 as described above is attached to the entire periphery, and the butted portion of the flange 3 is waterproofed. However, when insulating the piped elbow, if there is not enough work space around the pipe, there is the inconvenience that the pasting work will take a lot of time and the construction will not be good. is expected.

本発明は、こうした予想される不都合等を解消し、狭い空間でも簡単に既設配管のエルボに取り付けできるエルボ用遮音シートを提供することを課題とするものである。   It is an object of the present invention to provide an elbow sound insulation sheet that eliminates such anticipated inconveniences and can be easily attached to an elbow of an existing pipe even in a narrow space.

本発明では、上記課題を解決すべく、発泡樹脂シートの吸音材を主体とした遮音シートから成り、両端部にエルボの管端外周へ捲回される帯状部を有すると共に中間部の両側に襞部を形成したエルボ用の遮音シートを、襞部の端面同士と帯状部の端面と襞部の端面を互いに突き合わせた状態とし、そこに伸縮性と防水性を備えた粘着テープを貼着してエルボの外形に適合する椀形部を形成すると共にその粘着テープの一部を延長してエルボを十分に周回する長さの中間固定用テープ片を形成し、該帯状部の周面にこれをエルボの管端外周へ捲回固定するための端部固定用粘着テープ片を設けた。該遮音シートを、発泡樹脂シートの吸音材の上面にポリ塩化ビニールシートなどの遮音材のシートを重層し、更にその上層に不織布を重層したシートで構成し、該端部固定用粘着テープ片を不織布製の粘着テープで構成し、該中間固定用テープ片および端部固定用粘着テープ片の粘着面を剥離紙で覆った。該遮音シートをエルボの実物大模型に沿わせた状態で粘着テープを巻き付けして該椀形部を形成する。   In the present invention, in order to solve the above-mentioned problems, the sound-insulating sheet is mainly composed of a sound-absorbing material of a foamed resin sheet. The sound insulation sheet for the elbow that forms the part is in a state in which the end faces of the collar part, the end face of the belt-like part, and the end face of the collar part are abutted with each other, and an adhesive tape with stretchability and waterproofness is attached thereto Form a bowl-shaped part that conforms to the outer shape of the elbow and extend a part of the adhesive tape to form an intermediate fixing tape piece of sufficient length to circulate the elbow. An end fixing pressure-sensitive adhesive tape piece for winding and fixing to the pipe end outer periphery of the elbow was provided. The sound insulation sheet is composed of a sheet in which a sound insulation material such as a polyvinyl chloride sheet is overlaid on an upper surface of a sound absorbing material of a foamed resin sheet, and further a nonwoven fabric is overlaid thereon, and the adhesive tape piece for fixing the end portion is formed. The adhesive tape was composed of a non-woven adhesive tape, and the adhesive surfaces of the intermediate fixing tape piece and the end fixing adhesive tape piece were covered with release paper. An adhesive tape is wound around the sound insulation sheet along the full-scale elbow model to form the bowl-shaped portion.

このエルボ用遮音シートは、まず、配管済みのエルボの丸い背部に椀形部を当てがい、押さえながらエルボの管端部に帯状部を巻き付け、端部固定用粘着テープ片を帯状部の上に巻き付けた状態で接着固定し、次いで椀形部から延びる中間固定用テープ片をエルボの中間部の遮音シートの上に巻き付けて接着固定する。中間固定用テープ片は伸縮性と防水性を備えているので、エルボ用遮音シートを既設のエルボに押え付けた状態で取り付けることができ、シートの突合せ部から排水音が漏れたりシート内への水の浸入を防止できる。   In this elbow sound-insulating sheet, first put the hooked part on the round back of the piped elbow, wrap the band around the pipe end of the elbow while holding it down, and place the adhesive tape strip for fixing the end on the band. In the wound state, the adhesive fixing is performed, and then the intermediate fixing tape piece extending from the bowl-shaped portion is wound around the sound insulation sheet at the intermediate portion of the elbow to be adhesively fixed. Since the intermediate fixing tape piece is stretchable and waterproof, it can be attached with the sound insulation sheet for the elbow pressed against the existing elbow. Prevents water from entering.

本発明のエルボ用遮音シートは、両端部に帯状部を持ち中間部両側に襞部が形成されている発泡樹脂の襞部の端面同士や襞部と帯状部の端面同士を突き合わせてそこに粘着テープを貼着し、シートにエルボの外形に適合する椀形部を形成したので、既設配管のエルボの背部に該椀形部を当てるだけで所定の位置に安定設置することができ、２本の帯状部の上から夫々端部固定用粘着テープ片を巻いて貼着固定し、中間固定用テープ片をシートの椀形部の上から周回して貼着固定するだけで簡単に遮音シートの取り付け作業が完了する。エルボの周囲の隙間が狭い場合でも、椀形部や各テープ片が通過できる幅があればその作業を迅速且つ確実に取り付け作業を行える。   The sound insulation sheet for elbows of the present invention has a band-like portion at both ends and an end face of the foamed resin portion where the flange portions are formed on both sides of the intermediate portion or the end surfaces of the flange portion and the belt-like portion are adhered to each other. Since the tape-shaped part that fits the outer shape of the elbow is formed on the sheet, it can be stably installed at a predetermined position just by placing the hook-shaped part against the back of the elbow of the existing pipe. Simply wrap and fix the end fixing adhesive tape pieces from above the belt-like part of the belt, and then rotate the intermediate fixing tape pieces around the saddle-shaped part of the sheet and fix them. Installation work is completed. Even when the gap around the elbow is narrow, the work can be done quickly and reliably if there is a width that allows the bowl-shaped part and each piece of tape to pass through.

また、該中間固定用テープ片には微細な独立発泡を有する伸縮性と防水性を備えた合成樹脂製の粘着テープを使用することで、遮音シートをエルボに押し付けて確実に固定でき、テープ自体にも遮音性があるので襞部端面同士などの付き合わせた部分から排水騒音が外部へ漏れたり水が外部から遮音シート内に浸入することを防げる。 In addition, by using an adhesive tape made of a synthetic resin with stretchability and waterproofness that has fine independent foam for the intermediate fixing tape piece, the sound insulation sheet can be securely pressed against the elbow, and the tape itself Since it also has sound insulation, it can prevent drainage noise from leaking out from the attached parts such as the end faces of the buttocks and water from entering the sound insulation sheet from the outside.

遮音シートを、上記のように吸音材と遮音材を重層したシートの上にさらに不織布のシートを重層した構成とすることで、遮音シートの表面に結露が生じ難くなり、衝撃が加わってもシートが破損し難くなる。帯状部を固定する端部固定用粘着テープ片を不織布製の粘着テープで構成することでテープにおける結露の発生が防止できる。上記中間固定用テープ片および端部固定用粘着テープ片の粘着面を剥離紙で覆っておくことで、テープ片の纏わり付きがなくなり、包装や被覆作業が容易になる。   The sound insulation sheet has a structure in which a non-woven sheet is further laminated on the sheet having the sound absorbing material and the sound insulation material overlaid as described above, so that it is difficult for condensation to occur on the surface of the sound insulation sheet, and even if an impact is applied to the sheet. Is difficult to break. Generation | occurrence | production of the dew condensation in a tape can be prevented by comprising the adhesive tape piece for edge part fixing which fixes a strip | belt part with the adhesive tape made from a nonwoven fabric. By covering the adhesive surfaces of the intermediate fixing tape piece and the end fixing adhesive tape piece with release paper, the tape pieces are not stuck together, and packaging and covering operations are facilitated.

上記遮音シートの椀形部は、遮音シートをエルボの実物大模型に沿わせ、帯状部をエルボ模型の管端部周囲に仮止めした状態で襞部の突合せ部に粘着テープを巻き付けすることで簡単に形成でき、模型から取り外せば椀形部を持つエルボ用遮音シートが得られる。   The saddle-shaped part of the above-mentioned sound-insulating sheet is obtained by winding an adhesive tape around the butting part of the buttocks with the sound-insulating sheet aligned with the full-scale model of the elbow and with the belt-like part temporarily fixed around the pipe end of the elbow model. It can be easily formed, and if it is removed from the model, an elbow sound insulation sheet having a bowl-shaped part can be obtained.

本発明で使用したエルボ用の遮音シートの平面図Plan view of sound insulation sheet for elbow used in the present invention 図１の遮音シートを単体のエルボに取り付ける状態の正面図Front view of the sound insulation sheet of Fig. 1 attached to a single elbow 図２の側面図Side view of FIG. 図２の取り付け完成図Installation complete drawing of FIG. 本発明の実施例の正面図Front view of an embodiment of the present invention 図５の側面図Side view of FIG. 図５の実施例の展開平面図5 is a developed plan view of the embodiment of FIG. 使用状態の斜視図Perspective view in use 遮音シートの拡大断面図Expanded sectional view of sound insulation sheet

本発明の実施の形態を図面に基づき説明すると、図５及び図６において、符号５は本発明のエルボ用遮音シートを示す。このエルボ用遮音シート５は、図１乃至図４に示した発泡樹脂シートの吸音材を主体とした遮音シート４を使用したもので、遮音シートの両端部にはエルボの管端外周へ捲回される図１の帯状部２に相当するものや遮音シート中間部両側の襞部３に相当するものを備えている。このエルボ用遮音シート５の層構成は、図９に示したように、発泡樹脂シートの吸音材６の上面にポリ塩化ビニールシート製の遮音材７のシートを重層し、更にその上層に結露防止と破損防止のためにポリエチレンの不織布８を重層した構成を有する。   An embodiment of the present invention will be described with reference to the drawings. In FIGS. 5 and 6, reference numeral 5 denotes an elbow sound insulating sheet according to the present invention. This sound insulation sheet 5 for elbows uses the sound insulation sheet 4 mainly composed of the sound absorbing material of the foamed resin sheet shown in FIGS. 1 to 4, and is wound around the pipe end outer periphery of the elbow at both ends of the sound insulation sheet. 1 corresponding to the belt-like portion 2 of FIG. 1 and those corresponding to the flange portions 3 on both sides of the middle portion of the sound insulating sheet. As shown in FIG. 9, the elbow sound insulation sheet 5 has a layer structure in which a sound insulation material 7 made of a polyvinyl chloride sheet is layered on the upper surface of a sound absorbing material 6 made of a foamed resin sheet, and further, condensation is prevented on the upper layer. And in order to prevent breakage, it has a configuration in which polyethylene nonwoven fabrics 8 are overlaid.

前記したように既設配管のエルボに対して遮音工事を施すには、平坦な遮音シートをエルボに接着剤を塗布して貼り付ける作業を伴い、これはエルボ周囲に十分な空間が必要で作業性が悪い不都合があるが、本発明のものでは、遮音シート４の襞部３の端面同士と帯状部２の端面と襞部３の端面を互いに突き合わせ、この突合せ部分の上に伸縮性と防水性を備えた粘着テープ１４を貼着してエルボ１の湾曲した外形に適合する椀形部９を形成し、この粘着テープ１４の一端部を延長してエルボ１の湾曲部を十分に周回する長さの中間固定用テープ片１０を形成し、更に各帯状部２の周面にこれをエルボ１の管端外周へ捲回固定するための端部固定用粘着テープ片１１を設けた。これら中間固定用テープ片１０及び端部固定用粘着テープ片１１の粘着面には剥離紙で覆うようにした。   As described above, performing sound insulation work on the elbow of the existing piping involves applying a flat sound insulation sheet by applying an adhesive to the elbow, which requires sufficient space around the elbow. However, in the present invention, the end surfaces of the flange 3 of the sound insulating sheet 4, the end surface of the belt-like portion 2, and the end surface of the flange 3 are butted against each other, and stretchability and waterproofness are provided on the butted portion. The adhesive tape 14 provided with the adhesive tape 14 is pasted to form a bowl-shaped portion 9 that conforms to the curved outer shape of the elbow 1, and one end of the adhesive tape 14 is extended to sufficiently circulate the curved portion of the elbow 1. An intermediate fixing tape piece 10 was formed, and an end fixing pressure-sensitive adhesive tape piece 11 for winding and fixing the tape to the outer periphery of the pipe end of the elbow 1 was further provided on the peripheral surface of each band-like portion 2. The adhesive surfaces of the intermediate fixing tape piece 10 and the end fixing adhesive tape piece 11 were covered with release paper.

遮音シート４の帯状部２と襞部３の端面同士を付き合わせると、図５及び図６に示すように遮音シート４の中央部１２が盛り上がって椀形部９が形成され、粘着テープ１４を貼着することでこの椀形部９が維持されたエルボ用遮音シート５が得られる。この椀形部９が形成されているため、図８に示したように、既設配管１３のエルボの湾曲した背筋に椀形部９を当てるだけで遮音シートをセットでき、伸縮性のある中間固定用テープ片１０をエルボの径方向に引張しながら周回させて固定し、端部固定用粘着テープ片１１により帯状部２を管端部に巻き付いた状態で固定することで簡単に短時間に遮音作業を完了できる。また、遮音シートの厚さ程度の隙間がエルボ周囲あれば作業を行える利点がある。   When the end faces of the belt-like portion 2 and the flange portion 3 of the sound insulation sheet 4 are brought together, the central portion 12 of the sound insulation sheet 4 rises as shown in FIG. 5 and FIG. By sticking, the elbow sound insulating sheet 5 in which the hook-shaped portion 9 is maintained is obtained. Since this bowl-shaped part 9 is formed, as shown in FIG. 8, the sound insulation sheet can be set by simply placing the bowl-shaped part 9 on the curved back muscle of the elbow of the existing pipe 13, and the elastic intermediate fixing The tape piece 10 is rotated and fixed while being pulled in the radial direction of the elbow, and the band-like portion 2 is fixed around the end of the pipe by the adhesive tape piece 11 for fixing the end portion. Can complete the work. Further, there is an advantage that the work can be performed if there is a gap around the elbow around the thickness of the sound insulating sheet.

この伸縮性と防水性を備えた粘着テープ１４としては、ポリエチレンに微細な独立気泡を形成した軽量で伸縮性、防水性、耐熱性に優れたテープ材（積水化学 商品名ボラーラ）にアクリル系接着剤を塗布したものを使用した。また、端部固定用粘着テープ片１１としては、結露防止のために不織布製のものを使用した。   The pressure-sensitive adhesive tape 14 with stretchability and waterproofness is a lightweight, stretchable, waterproof and heat-resistant tape material (Sekisui Chemical Co., Ltd., Bollara), which has fine closed cells formed in polyethylene. What applied the agent was used. Moreover, as the adhesive tape piece 11 for edge fixing, the thing made from a nonwoven fabric was used in order to prevent dew condensation.

本発明のエルボ用遮音シート５は、適用されるエルボの実物大の模型を用意してこれの周面に遮音シート４を押し当てることで帯状部２や襞部３の端面同士を付き合わせ状態とし、この状態で突合せ部に伸縮性の粘着テープ１４を貼着し、端部固定用粘着テープ片１１を貼着することで簡単に製作できる。   The elbow sound-insulating sheet 5 of the present invention is prepared by preparing a full-scale model of the elbow to be applied and pressing the sound-insulating sheet 4 against the circumferential surface of the elbow so that the end faces of the belt-like part 2 and the collar part 3 are brought together. In this state, the elastic adhesive tape 14 is attached to the butt portion, and the end fixing adhesive tape piece 11 is attached.

１ エルボ、２ 帯状部、３ 襞部、４ 遮音シート、５ エルボ用遮音シート、６ 吸音材、７ 遮音材、８ 不織布、９ 椀形部、１０ 中間固定用テープ片、１１ 端部固定用粘着テープ片、１４ 粘着テープ、   DESCRIPTION OF SYMBOLS 1 Elbow, 2 strip | belt-shaped part, 3 collar part, 4 sound insulation sheet, 5 sound insulation sheet for elbow, 6 sound absorption material, 7 sound insulation material, 8 nonwoven fabric, 9 saddle-shaped part, 10 tape piece for intermediate fixing, 11 edge fixing adhesive Tape piece, 14 Adhesive tape,

Claims (3)

発泡樹脂シートの吸音材を主体とした遮音シートから成り、両端部にエルボの管端外周へ捲回される帯状部を有すると共に中間部の両側に襞部を形成したエルボ用の遮音シートを、襞部の端面同士と帯状部の端面と襞部の端面を互いに突き合わせた状態とし、そこに伸縮性と防水性を備えた粘着テープを貼着してエルボの外形に適合する椀形部を形成すると共にその粘着テープの一部を延長してエルボを十分に周回する長さの中間固定用テープ片を形成し、該帯状部の周面にこれをエルボの管端外周へ捲回固定するための端部固定用粘着テープ片を設けたことを特徴とするエルボ用遮音シート。   A sound insulating sheet for an elbow comprising a sound insulating sheet mainly composed of a sound absorbing material of a foamed resin sheet, having a band-like portion wound around the outer periphery of the elbow tube at both ends and forming a flange on both sides of the intermediate portion, The end face of the heel part, the end face of the belt-like part, and the end face of the heel part are in contact with each other, and an adhesive tape with elasticity and waterproofness is attached to form a hook part that fits the outer shape of the elbow In addition, a part of the adhesive tape is extended to form an intermediate fixing tape piece having a length enough to circulate the elbow, and this is fixed to the outer periphery of the pipe end of the elbow on the peripheral surface of the strip. A sound insulating sheet for elbows, characterized in that it is provided with an adhesive tape piece for fixing the end portion of the elbow. 上記遮音シートを、発泡樹脂シートの吸音材の上面にポリ塩化ビニールシートなどの遮音材のシートを重層し、更にその上層に不織布を重層したシートで構成し、上記端部固定用粘着テープ片を不織布製の粘着テープで構成し、上記中間固定用テープ片および端部固定用粘着テープ片の粘着面を剥離紙で覆ったことを特徴とする請求項１に記載のエルボ用遮音シート。   The sound insulation sheet is composed of a sheet in which a sound insulation material such as a polyvinyl chloride sheet is overlaid on the upper surface of the sound absorbing material of the foamed resin sheet, and further a nonwoven fabric is overlaid thereon, and the adhesive tape piece for fixing the end portion is formed. The sound insulating sheet for elbows according to claim 1, wherein the sound insulating sheet is composed of a non-woven adhesive tape, and the adhesive surfaces of the intermediate fixing tape piece and the end fixing adhesive tape piece are covered with release paper. 上記遮音シートをエルボの実物大模型に沿わせた状態で粘着テープを巻き付けして上記椀形部を形成したことを特徴とするエルボ用遮音シート。   An elbow sound-insulating sheet, wherein the hook-shaped portion is formed by wrapping an adhesive tape in a state where the sound-insulating sheet is placed along a full-scale elbow model.