JP2003040557A - Muffling device for elevator - Google Patents
Muffling device for elevatorInfo
- Publication number
- JP2003040557A JP2003040557A JP2001223244A JP2001223244A JP2003040557A JP 2003040557 A JP2003040557 A JP 2003040557A JP 2001223244 A JP2001223244 A JP 2001223244A JP 2001223244 A JP2001223244 A JP 2001223244A JP 2003040557 A JP2003040557 A JP 2003040557A
- Authority
- JP
- Japan
- Prior art keywords
- rope
- duct
- pipe
- hole
- machine room
- 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.)
- Pending
Links
Landscapes
- Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
- Cage And Drive Apparatuses For Elevators (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は機械室の巻上機など
から発せられる音が昇降路に伝播して各階ホールや乗り
かごに伝わるのを低減するエレベータの消音装置に関す
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a silencer for an elevator, which reduces the sound transmitted from a hoisting machine in a machine room from being propagated to a hoistway and being transmitted to halls and cars of each floor.
【０００２】[0002]
【従来の技術】ロープ式エレベータにおいて昇降路の上
に巻上機や制御装置を配置した機械室から、巻上機など
で発した音が機械室床のロープ貫通穴を通して昇降路側
に伝わり騒音となる場合があり、この音を低減させるた
めに機械室内壁に吸音材を被着した筒状の囲い体を床上
に設けたり、床に打設されたシンダーコンクリートのせ
き板をダクト状にしてロープを囲みロープ貫通穴から漏
れる騒音を低減する試みがなされている。また、消音装
置として昇降路内に乗りかごと釣合い錘を吊架するロー
プを囲むダクトを取付けたものがある。2. Description of the Related Art In a rope type elevator, the sound generated by a hoist or the like from a machine room where a hoisting machine or a control device is arranged on the hoistway is transmitted to the hoistway side through a rope through hole on the floor of the machine room. In order to reduce this noise, a cylindrical enclosure with sound absorbing material is attached to the inside of the machine room on the floor, or a cinder concrete cinder placed on the floor is formed into a duct and rope is used. Attempts have been made to reduce the noise that surrounds the rope and leaks from the rope through hole. Further, there is a muffler equipped with a duct surrounding a rope for suspending a car and a counterweight in a hoistway.
【０００３】[0003]
【発明が解決しようとする課題】従来のエレベータの消
音装置は、機械室の設置スペースが狭い場合などは、昇
降路内に設置するが、通常は消音装置本体を昇降路内の
ガイドレールブラケットを介して固定している。このた
め取り付け作業が、かご上または消音装置の設置がエレ
ベータ用品の据え付け時期に行なう場合は移動足場やゴ
ンドラ上で行われ、取りつけの際に取りつけ部工具など
が誤って落下する場合もある。とくに高層ビルなどでは
昇降行程が長いために作業再開に時間を要してしまう。
また、昇降路内の設置となるため必然的に高所作業とな
り十分に注意して作業を行なう必要があった。The conventional muffler for elevators is installed in the hoistway when the installation space of the machine room is small. Normally, the muffler body is installed on the guide rail bracket in the hoistway. Fixed through. For this reason, when the installation work is performed on the car or on the gondola when the elevator or the muffler is installed at the installation time of the elevator article, the installation tool or the like may fall accidentally during installation. Especially in high-rise buildings, it takes a long time to restart the work because of the long lifting process.
Also, since it is installed in the hoistway, it is inevitable that the work will be performed at a high place, and it is necessary to perform the work with great care.
【０００４】また、床に打設されたシンダーコンクリー
トのせき（堰）板を管状のダクトと兼用し、内側にグラ
スウールやロックウールなどの多孔質の吸音材を設置し
たとしても、ダクト長の割に吸音が少なく、騒音低減を
吸音材に依存するため５００Ｈｚ以上の中、高周波数に
ある程度効果があるものの、５００Ｈｚ以下の周波数帯
には大きな騒音低減効果を期待できない。Even if a cinder plate made of cinder concrete cast on the floor is used also as a tubular duct and a porous sound absorbing material such as glass wool or rock wool is installed on the inside, the duct length is relatively small. Since there is little sound absorption and the noise reduction depends on the sound absorbing material, there is some effect in the middle and high frequencies above 500 Hz, but a large noise reduction effect cannot be expected in the frequency band below 500 Hz.
【０００５】機械室の騒音の発生源は主に巻上機であ
る。そのため発生音の周波数帯は比較的、低周波にある
ので、比較的小型でこの低周波帯に減音効果があり、し
かも取付けが機械室で行なえるなど取付作業を円滑かつ
安全に行なえる消音装置が望まれている。The source of noise in the machine room is mainly the hoisting machine. Therefore, since the frequency band of the generated sound is relatively low frequency, it is relatively small and has a noise reduction effect in this low frequency band, and furthermore, it can be installed in the machine room and can be installed smoothly and safely. A device is desired.
【０００６】本発明は上記した不都合を解消し、低周波
帯の減音に効果があり、取付作業を円滑かつ安全に行な
える消音装置を得るものである。The present invention solves the above-mentioned inconveniences, is effective in reducing the sound in the low frequency band, and provides a silencer capable of smoothly and safely performing the mounting work.
【０００７】[0007]
【課題を解決するための手段】本発明は、乗りかごおよ
び釣合い錘が昇降する昇降路上に床を隔てて設けられた
機械室に前記乗りかごおよび前記釣合い錘を吊架するロ
ープを巻上げる巻上機が配置され、前記床は前記ロープ
が貫通するロープ貫通穴を有し、このロープ貫通穴を取
囲み前記機械室側にダクト取付部が形成された枠体が配
置されたエレベータシステムの消音装置において、前記
ロープ貫通穴に挿通される消音ロープダクトを備え、こ
の消音ロープダクトは前記機械室側から前記昇降路側に
かけて連通する入り口管、膨張管および尾管とを具備
し、前記膨張管は前記入り口管および前記尾管よりも水
平方向の断面積が大きく形成され、前記入り口管は前記
ロープ貫通穴に挿通されて前記枠体の前記ダクト取付部
に固定され、前記膨張管および前記尾管は前記昇降路側
に配置されたことを特徴とするエレベータの消音装置を
得るものである。SUMMARY OF THE INVENTION According to the present invention, a hoist for hoisting a rope for suspending the car and the counterweight in a machine room provided on a hoistway where the car and the counterweight are lifted and separated from each other. A silencer for an elevator system in which an upper machine is arranged, the floor has a rope through hole through which the rope penetrates, and a frame body surrounding the rope through hole and having a duct attachment portion is arranged on the machine room side. In the device, a muffling rope duct that is inserted into the rope through hole is provided, and the muffling rope duct includes an inlet pipe, an expansion pipe and a tail pipe that communicate from the machine room side to the hoistway side, and the expansion pipe is The inlet pipe and the tail pipe are formed to have a larger horizontal cross-sectional area, and the inlet pipe is inserted into the rope through hole and fixed to the duct mounting portion of the frame body, and Tube and said tail tube is intended to obtain a silencer device for an elevator, characterized in that arranged on the shaft side.
【０００８】一構成例として機械室床にシンダーコンク
リートを打設するときのロープ貫通穴のせき板を枠体と
して、一部にダクト取付部を形成する。As an example of the construction, a duct mounting portion is formed in a part by using a dam plate of a rope through hole for pouring cinder concrete on a machine room floor as a frame body.
【０００９】消音ロープダクトは入り口管、膨張管、尾
管が連結され、内部が連通しており、管軸をロープが通
過する構造であり、各管部の水平方向の断面積におい
て、膨張管の断面積Ｓ１が入り口管の断面積Ｓ２および
尾管の断面積Ｓ３の２倍以上に形成される。The muffler rope duct has a structure in which an inlet pipe, an expansion pipe, and a tail pipe are connected to communicate with each other, and the rope passes through the pipe axis. The expansion pipe has a horizontal cross-sectional area. Has a cross-sectional area S1 of 2 times or more of the cross-sectional area S2 of the inlet pipe and the cross-sectional area S3 of the tail pipe.
【００１０】面積比率ｍ＝Ｓ１／Ｓ２＝Ｓ１／Ｓ３、膨
張管のロープ走行方向すなわち垂直方向の長さ（内壁間
の距離）をＬ１とすると、減音量ＴＬ（ｄＢ）は
ＴＬ＝log１０｛１＋（１／４）（ｍ−１／ｍ）２sin２
（ｋＬ１）｝
で表される。ここにｋ＝２πｆ／ｃ，ｆ：周波数、ｃ：
音速である。If the area ratio m = S1 / S2 = S1 / S3 and the length of the expansion tube in the rope running direction, that is, the vertical direction (distance between inner walls) is L1, the volume reduction TL (dB) is TL = log10 {1+ (1/4) (m-1 / m) 2 sin 2
(KL1)}. Here, k = 2πf / c, f: frequency, c:
It is the speed of sound.
【００１１】ｍ＝２で３ｄＢ、ｍ＝３で６ｄＢの減音効
果が期待でき、減音すべき周波数ｆを中心とする帯域お
よびその高調波を低減することができる。実用的にはｍ
＝１２までとするのが望ましい。A sound reduction effect of 3 dB when m = 2 and 6 dB when m = 3 can be expected, and a band centered on the frequency f to be reduced and its harmonics can be reduced. Practically m
It is desirable that the number is up to 12.
【００１２】入り口管がロープ貫通穴に挿通され、膨張
管および尾管が昇降路側に配置された状態で、機械室側
でせき板の取付部に取付けられて、消音ロープダクトが
保持される。With the inlet pipe inserted through the rope through hole and the expansion pipe and the tail pipe arranged on the hoistway side, the silencer rope duct is held by being attached to the mounting portion of the weir plate on the machine room side.
【００１３】[0013]
【発明の実施の形態】以下図面により本発明の実施の形
態を説明する。なお、各図で同一符号の部分は同様な部
分を示している。図１乃至図４により本発明の第１実施
の形態を説明する。図２（ａ）に示すように建物の最上
階の機械室１０に設置される巻上機１１、メインシーブ
１２、減速機と調速機および電磁装置等を有する制御装
置１３、ビーム１４、建物の各階を貫いて上下に長く設
けられた昇降路１５内に位置して巻上機１１とメインシ
ーブ１２に巻き回された主ロープ１６の両端に取りつけ
られた上下に走行する乗りかご１７および釣り合い錘１
８、乗りかご用および釣り合い錘用ガイドレール（図示
しない）により構成されている。符号２１，２２，２３
は各階ホールを示す。機械室１０は床１９により昇降路
１５から隔てられ、床１９に２つの主ロープを貫通させ
るロープ貫通穴２０が設けられ、メインシーブ１２に巻
き回された主ロープ１６がこの貫通穴２０を介して乗り
かご１７および釣り合い錘１８に固定されこれらを吊架
している。この主ロープ１６は貫通穴２０を上下両方向
に移動するときに、この貫通穴の中で多少の揺れが生じ
る。図２（ｂ）に示すように前記貫通穴２０の寸法は、
一般的に用いられているロープの本数が６本から１２本
の並列配列に対して、ロープ１６が通過する際に主ロー
プ１６が貫通穴の横方向に揺れて主ロープが接触しない
ように縦ａ、横ｂの寸法が決定される。例えば７本の本
数で３８ｃｍ×３０ｃｍである。BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. In addition, in each of the drawings, portions having the same reference numerals indicate similar portions. A first embodiment of the present invention will be described with reference to FIGS. As shown in FIG. 2A, a hoisting machine 11, a main sheave 12, a controller 13 having a speed reducer, a speed governor, an electromagnetic device, etc., a beam 14, a building installed in a machine room 10 on the top floor of the building. Which is located in the hoistway 15 that extends vertically through the floors of the above, and is mounted on both ends of the main rope 16 wound around the hoisting machine 11 and the main sheave 12, and runs vertically. Weight 1
8. A guide rail (not shown) for a car and a counterweight. Reference numerals 21, 22, 23
Indicates halls on each floor. The machine room 10 is separated from the hoistway 15 by a floor 19, a rope through hole 20 is provided in the floor 19 for penetrating two main ropes, and a main rope 16 wound around a main sheave 12 is inserted through the through hole 20. It is fixed to the car 17 and the counterweight 18 and is suspended. When the main rope 16 moves in the through hole 20 in both up and down directions, some swinging occurs in the through hole. As shown in FIG. 2B, the size of the through hole 20 is
Compared to the parallel array of 6 to 12 ropes that are generally used, when the rope 16 passes, the main rope 16 is swayed in the lateral direction of the through hole so that the main rope does not touch. The dimensions of a and lateral b are determined. For example, the number of seven is 38 cm × 30 cm.
【００１４】図２（ｃ）に示すように、機械室床１９に
はシンダーコンクリート１９ａが打設され、ロープ貫通
穴２０には形状を確保する鋼板からなるせき（堰）板の
矩形断面の筒状の枠体２４が貫通穴の所定寸法で設けら
れる。枠体２４は本体を床に埋設されるが、上部縁の取
付部２５を床面から機械室側に突出させて配置される。
取付部２５にはボルト孔２６が穿設される。As shown in FIG. 2 (c), the machine room floor 19 is provided with a cinder concrete 19a, and the rope through hole 20 is made of a steel plate for ensuring the shape. The frame-like body 24 is provided with a predetermined size of the through hole. The main body of the frame body 24 is embedded in the floor, but the mounting portion 25 at the upper edge is arranged so as to project from the floor surface to the machine room side.
A bolt hole 26 is formed in the mounting portion 25.
【００１５】図１乃至図４に示すように、消音ロープダ
クト３０は、貫通穴２０の枠体２４に取付けられダクト
３０を保持する入り口管３２と、この入り口管３２に連
結される膨張管３１と、膨張管３１に連結される尾管３
３からなり、内空間が連通し、管軸に沿って主ロープ１
６が貫通する構造である。膨張管３１は機械室１０内の
音が外部に漏れないように貫通穴２０の内部を伝搬する
所定の周波数の音波をカットするものであり、入り口管
３２から機械室からの音が入り、尾管３３は膨張管とと
もに音波をカットする。As shown in FIGS. 1 to 4, the muffling rope duct 30 includes an inlet pipe 32 attached to the frame 24 of the through hole 20 for holding the duct 30, and an expansion pipe 31 connected to the inlet pipe 32. And the tail pipe 3 connected to the expansion pipe 31
It consists of 3 parts, the inner space communicates with the main rope 1 along the pipe axis.
6 is a structure which penetrates. The expansion pipe 31 cuts a sound wave of a predetermined frequency propagating inside the through hole 20 so that the sound in the machine room 10 does not leak to the outside, and the sound from the machine room enters from the inlet pipe 32, The tube 33 cuts sound waves together with the expansion tube.
【００１６】入り口管３２の外壁形状は枠体２４内壁に
挿通可能な程度にほぼ同寸法、同形状にされ、枠体に挿
通された後、枠体の取付部２５にボルト締めされるよう
に、取付部２５のボルト孔２６に対応して入り口管開口
端３４にボルト孔３５が形成される。The outer wall of the inlet pipe 32 has substantially the same size and shape so that it can be inserted into the inner wall of the frame 24, and after being inserted into the frame, it is bolted to the mounting portion 25 of the frame. A bolt hole 35 is formed at the opening end 34 of the inlet pipe corresponding to the bolt hole 26 of the mounting portion 25.
【００１７】膨張管３１は入り口管３２および尾管３３
の水平方向断面積（内部寸法面積）の２倍以上の水平方
向断面積を有しており、機械室から発せられる音が入り
口管３２を経て膨張管３１に伝播するときに、急膨張し
て拡散することによる音の干渉効果により、音を減衰す
るものであり、さらに、音が尾管３３に出ていくとき
に、急収縮することによる干渉を利用して音を減衰する
ものである。断面積を２倍以上にすることにより、２ｄ
Ｂ以上の減衰量を確保することができる。The expansion pipe 31 includes an inlet pipe 32 and a tail pipe 33.
Has a horizontal cross-sectional area that is at least twice the horizontal cross-sectional area (internal dimension area), and when sound emitted from the machine room propagates through the inlet pipe 32 to the expansion pipe 31, it expands rapidly. The sound is attenuated by the sound interference effect due to the diffusion, and further, when the sound goes out to the tail tube 33, the sound is attenuated by utilizing the interference caused by the rapid contraction. By increasing the cross-sectional area more than twice, 2d
It is possible to secure an attenuation amount of B or more.
【００１８】尾管３３は入り口管３２と同様にロープの
通過を考慮して同形状にすることが望ましいが、必要に
より円筒など他の形状にすることもできる。尾管３３の
長さは減音すべき音の１／２波長の奇数倍に選ぶことに
より、減音効果を増大させることができる。It is desirable that the tail pipe 33 has the same shape as the entrance pipe 32 in consideration of the passage of the rope, but it may have another shape such as a cylinder if necessary. The length of the tail tube 33 is selected to be an odd multiple of 1/2 wavelength of the sound to be reduced, so that the noise reduction effect can be increased.
【００１９】入り口管３２の長さＬは尾管３３と同等と
するが、それよりも短くして枠体２４の長さに合せても
よい。The length L of the inlet pipe 32 is the same as that of the tail pipe 33, but it may be shorter than that to match the length of the frame body 24.
【００２０】騒音の低周波成分の主ピークを例えば３０
０Ｈｚとすると、３０ｃｍ×３８ｃｍのロープ貫通穴に
対して、入り口管、尾管の長さを５７ｃｍ、膨張管の長
さを２９ｃｍ、膨張管の断面積を一辺が５７ｃｍの正方
形とする消音ロープダクトにより、主ピークおよびその
周辺の周波数の音および高調波が吸収されて実用上の効
果が見られる２ｄＢ以上の減音を達成することができ
る。さらに内壁に吸音材を貼りつけると高周波成分に対
してもさらに減音効果がある。The main peak of the low frequency component of noise is, for example, 30
At 0 Hz, the silencer rope duct has a 30 cm x 38 cm rope through hole with a length of 57 cm for the inlet pipe and tail pipe, 29 cm for the expansion pipe, and 57 cm for the cross-sectional area of the expansion pipe. Thus, it is possible to achieve sound reduction of 2 dB or more in which the sound and harmonics of the main peak and the frequencies around the main peak are absorbed and practical effects can be seen. Furthermore, if a sound absorbing material is attached to the inner wall, it has a further sound reducing effect on high frequency components.
【００２１】図３および図４に示すように、本実施の形
態において、消音ロープダクト３０は複数個の分割部品
の組立体で構成され、入り口管３２、膨張管３１および
尾管３３は別個に製造される。さらに、膨張管３１は中
央で上下に水平方向の面で２分割される。それぞれの部
品は突き合わせ部分にフランジ３２ａ、３３ａを有し、
ボルト、ナットで取付けられる。膨張管の上下分割は、
入り口管３２と上側膨張管３１ａを、また尾管３３と下
側膨張管３１ｂをあらかじめ組立てておき、最終的に
上、下膨張管のフランジ３６同士を突合わせて取付けら
れるので、各管内壁に吸音材を貼りつけるときに交換作
業が容易になり便利である。As shown in FIGS. 3 and 4, in the present embodiment, the muffling rope duct 30 is composed of an assembly of a plurality of divided parts, and the inlet pipe 32, the expansion pipe 31 and the tail pipe 33 are separately provided. Manufactured. Further, the expansion tube 31 is vertically divided into two parts in a horizontal direction at the center. Each part has flanges 32a and 33a at the abutting portion,
Mounted with bolts and nuts. The upper and lower division of the expansion tube is
The inlet pipe 32 and the upper expansion pipe 31a, and the tail pipe 33 and the lower expansion pipe 31b are pre-assembled, and finally the flanges 36 of the upper and lower expansion pipes are abutted against each other so that they can be attached to the inner wall of each pipe. It is convenient because the replacement work is easy when attaching the sound absorbing material.
【００２２】消音ロープダクトの取付作業は、入り口
管、膨張管および尾管を組立てた状態で昇降路内より乗
りかご上、または移動足場やゴンドラ上で機械室と機械
室階下間のロープ貫通穴２０に入り口管３２の開口端３
４側を通し、枠体２４に予め設けたボルト孔２６に入り
口管３２の取付部にあるボルト孔３５を位置合わして、
ボルト、ナット３８（図１）で取付ける。The installation work of the muffling rope duct is performed by assembling the inlet pipe, the expansion pipe and the tail pipe on the car from the inside of the hoistway or on the moving scaffold or gondola between the machine room and the machine room downstairs through the rope through hole. Open end 3 of inlet pipe 32 to 20
The bolt hole 35 in the mounting portion of the inlet pipe 32 is aligned with the bolt hole 26 previously provided in the frame 24 through the 4 side,
Install with bolts and nuts 38 (Fig. 1).
【００２３】消音ロープダクト３０の材質は鋼板のほ
か、アルミニウムなどの他の金属、プラスティックなど
種々の材料を用いることができる。As the material of the muffling rope duct 30, various materials such as steel, other metals such as aluminum, and plastic can be used.
【００２４】以上のように、消音ロープダクトの取り付
け作業を機械室側で行なうことができるので、作業性の
向上、安全性を高めることができる。As described above, since the work of attaching the muffling rope duct can be performed on the machine room side, it is possible to improve workability and safety.
【００２５】図５は本発明の第２の実施の形態を示すも
ので、消音ロープダクト４０を主ロープの走行方向に沿
って垂直方向に縦割りで形成された分割部品４１、４２
で構成したものである。入り口管３２、膨張管３１およ
び尾管３３を縦割りに２分割して製作し、各部の片側同
士を予め溶接やボルト、ナットで取付けて、分割部品４
１、４２とし、最終的にこれらをフランジ部分４３でボ
ルト、ナット４４で取付け組立てる。この構造によれ
ば、内壁への吸音材の貼りつけが容易である。しかも、
消音装置を付属しない既存のエレベータ設備に対して、
ロープを挟むようにして取付けられるので、取り付けの
際もロープが邪魔にならないという利点がある。FIG. 5 shows a second embodiment of the present invention, in which the silencing rope duct 40 is vertically split along the traveling direction of the main rope so as to be vertically split.
It is composed of. The inlet pipe 32, the expansion pipe 31, and the tail pipe 33 are vertically divided into two parts, and one part of each part is attached in advance by welding, bolts or nuts, and the divided parts 4
1, 42, and finally, these are assembled by attaching the flange portion 43 with bolts and nuts 44. According to this structure, it is easy to attach the sound absorbing material to the inner wall. Moreover,
For existing elevator equipment that does not come with a silencer,
Since the rope is attached so as to be sandwiched, there is an advantage that the rope does not get in the way even when attaching.
【００２６】図６は本発明の第３の実施の形態を示し、
角筒５０により入り口管３２および尾管３３を一体構造
で形成し、中間部分の四方に隅部５１を残して開口部５
２を形成する。一方、膨張管３１を中央に貫通穴５３を
設けた箱体５４で構成し、箱体５１を角筒５０の中間部
分に嵌着させて、消音ロープダクトとしたものである。
同形状の入り口管３２と尾管３３を一体構造とし、異な
る形状の膨張管と分割することにより製造が簡単とな
り、隅部５１によりダクト全体も強固になる。FIG. 6 shows a third embodiment of the present invention,
The inlet pipe 32 and the tail pipe 33 are integrally formed by the rectangular cylinder 50, and the opening portion 5 is formed by leaving the corner portions 51 on the four sides of the intermediate portion.
Form 2. On the other hand, the expansion tube 31 is configured by a box body 54 having a through hole 53 in the center, and the box body 51 is fitted in the middle portion of the rectangular tube 50 to form a muffling rope duct.
The inlet pipe 32 and the tail pipe 33 having the same shape are integrated with each other, and the expansion pipe having a different shape is divided, so that the manufacturing is simplified, and the corner portion 51 also strengthens the entire duct.
【００２７】以上本発明の実施の形態を角筒型の消音ロ
ープダクトで説明したが、円筒など他の形状も適用可能
である。Although the embodiments of the present invention have been described with respect to the rectangular tube type muffling rope duct, other shapes such as a cylinder can be applied.
【００２８】さらに、ロープ貫通穴の枠体と入り口管の
取り付けは、前記したボルトによる他、ねじやリベット
などを用いることができる。Further, in order to attach the frame body of the rope through hole and the inlet pipe, a screw or a rivet can be used in addition to the above-mentioned bolt.
【００２９】[0029]
【発明の効果】本発明は消音ロープダクトを入り口管、
膨張管、尾管を有する構造とし、入り口管端をロープ貫
通穴の枠体に機械室側で取付けられる構造であるため、
取り付け作業の作業効率と安全性を確保することができ
る。さらに、ロープダクトを分割部品で構成することに
より、製造を容易にすることができる。INDUSTRIAL APPLICABILITY The present invention uses a muffling rope duct as an inlet pipe,
Since it has a structure with an expansion pipe and a tail pipe and the structure where the inlet pipe end is attached to the frame body of the rope through hole on the machine room side,
The work efficiency and safety of the installation work can be secured. Furthermore, by constructing the rope duct with divided parts, manufacturing can be facilitated.
【図１】本発明の一実施の形態の主要部を説明する略
図。FIG. 1 is a schematic diagram illustrating a main part of an embodiment of the present invention.
【図２】（ａ）は本発明の一実施の形態のエレベータシ
ステムを説明する略図、（ｂ）はロープ貫通穴の水平方
向断面図、（ｃ）はロープ貫通穴の垂直方向断面図。2A is a schematic view illustrating an elevator system according to an embodiment of the present invention, FIG. 2B is a horizontal sectional view of a rope through hole, and FIG. 2C is a vertical sectional view of a rope through hole.
【図３】本発明の一実施の形態の消音ロープダクトの側
面図。FIG. 3 is a side view of the muffling rope duct according to the embodiment of the present invention.
【図４】本発明の一実施の形態の消音ロープダクトの平
面図。FIG. 4 is a plan view of the muffling rope duct according to the embodiment of the present invention.
【図５】本発明の第２の実施の形態の消音ロープダクト
の側面図。FIG. 5 is a side view of the muffling rope duct according to the second embodiment of the present invention.
【図６】本発明の第３の実施の形態の消音ロープダクト
の縦断面図。FIG. 6 is a vertical sectional view of a muffling rope duct according to a third embodiment of the present invention.
１０：機械室 １１：巻上機 １５：昇降路 １６：主ロープ １７：乗りかご １８：釣り合い錘 １９：床 ２０：ロープ貫通穴 ２４：枠体 ３０：消音ロープダクト ３１：膨張管 ３２：入り口管 ３３：尾管 ３５：ボルト孔 ３６：フランジ ３７：ボルト・ナット 10: Machine room 11: Hoisting machine 15: Hoistway 16: Main rope 17: Car 18: Counterweight 19: floor 20: Rope through hole 24: frame 30: Silent rope duct 31: Expansion tube 32: Entrance pipe 33: Tail tube 35: Bolt hole 36: Flange 37: Bolts and nuts
Claims (7)
路上に床を隔てて設けられた機械室に前記乗りかごおよ
び前記釣合い錘を吊架するロープを巻上げる巻上機が配
置され、前記床は前記ロープが貫通するロープ貫通穴を
有し、このロープ貫通穴を取囲み前記機械室側にダクト
取付部が形成された枠体が配置されたエレベータシステ
ムの消音装置において、 前記ロープ貫通穴に挿通される消音ロープダクトを備
え、この消音ロープダクトは前記機械室側から前記昇降
路側にかけて連通する入り口管、膨張管および尾管とを
具備し、前記膨張管は前記入り口管および前記尾管より
も水平方向の断面積が大きく形成され、前記入り口管は
前記ロープ貫通穴に挿通されて前記枠体の前記ダクト取
付部に固定され、前記膨張管および前記尾管は前記昇降
路側に配置されたことを特徴とするエレベータの消音装
置。1. A hoist for hoisting a rope for suspending the car and the counterweight is arranged in a machine room provided on a hoistway where the car and the counterweight are lifted and separated from each other. Is a silencer of an elevator system having a rope through hole through which the rope penetrates, and a frame body that surrounds the rope through hole and has a duct mounting portion formed on the machine room side is arranged in the rope through hole. A sound deadening rope duct is inserted, and the sound deadening rope duct includes an inlet pipe, an expansion pipe and a tail pipe that communicate with each other from the machine room side to the hoistway side, and the expansion pipe is formed from the inlet pipe and the tail pipe. Also has a large horizontal cross-sectional area, the inlet pipe is inserted into the rope through hole and fixed to the duct attachment portion of the frame, the expansion pipe and the tail pipe are Muffler device for an elevator, characterized in that arranged in descending path side.
で形成され、前記枠体がせき板で形成されてなる請求項
１記載のエレベータの消音装置。2. The silencer for an elevator according to claim 1, wherein the floor of the machine room is made of cinder concrete, and the frame is made of a dam.
平方向の断面積が前記入り口管および前記尾管の水平方
向の断面積の２倍以上に形成されてなる請求項１記載の
エレベータの消音装置。3. The silencer for an elevator according to claim 1, wherein the horizontal cross-sectional area of the expansion pipe of the silencing rope duct is at least twice the horizontal cross-sectional area of the inlet pipe and the tail pipe. apparatus.
が消音すべき音の１／２波長の奇数倍長である請求項１
または３記載のエレベータの消音装置。4. The length of the tail pipe of the silencing rope duct is an odd multiple of 1/2 wavelength of the sound to be silenced.
Or the silencer of the elevator according to 3.
体である請求項１記載のエレベータの消音装置。5. The silencer for an elevator according to claim 1, wherein the silencing rope duct is an assembly of divided parts.
部品からなる請求項５記載のエレベータの消音装置。6. The silencer for an elevator according to claim 5, wherein the silencing duct is composed of horizontally divided parts.
にそって垂直方向に分割された部品からなる請求項５記
載のエレベータの消音装置。7. The muffler for an elevator according to claim 5, wherein the muffler duct is composed of parts that are vertically divided along a traveling direction of the rope.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001223244A JP2003040557A (en) | 2001-07-24 | 2001-07-24 | Muffling device for elevator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001223244A JP2003040557A (en) | 2001-07-24 | 2001-07-24 | Muffling device for elevator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2003040557A true JP2003040557A (en) | 2003-02-13 |
Family
ID=19056609
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001223244A Pending JP2003040557A (en) | 2001-07-24 | 2001-07-24 | Muffling device for elevator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2003040557A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107406234A (en) * | 2015-03-12 | 2017-11-28 | 三菱电机株式会社 | Elevator sound arrester |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4930190Y1 (en) * | 1969-10-13 | 1974-08-15 | ||
| JPS5552877A (en) * | 1978-10-06 | 1980-04-17 | Tokyo Shibaura Electric Co | Sound isolation device for elevator machine chamber |
| JPS57116679A (en) * | 1981-01-14 | 1982-07-20 | Canon Inc | Miniature printer |
| JPH03127676A (en) * | 1989-10-13 | 1991-05-30 | Yamazaki Kagaku Kogyo Kk | Washing apparatus |
| JPH0468088A (en) * | 1990-07-09 | 1992-03-03 | Asahi Chem Ind Co Ltd | Degreasing detergent |
| JPH0793801B2 (en) * | 1987-02-19 | 1995-10-09 | 株式会社東芝 | Muffler for rotating electric machine |
| JP2586485Y2 (en) * | 1993-09-21 | 1998-12-09 | 新明和工業株式会社 | Silencer |
-
2001
- 2001-07-24 JP JP2001223244A patent/JP2003040557A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4930190Y1 (en) * | 1969-10-13 | 1974-08-15 | ||
| JPS5552877A (en) * | 1978-10-06 | 1980-04-17 | Tokyo Shibaura Electric Co | Sound isolation device for elevator machine chamber |
| JPS57116679A (en) * | 1981-01-14 | 1982-07-20 | Canon Inc | Miniature printer |
| JPH0793801B2 (en) * | 1987-02-19 | 1995-10-09 | 株式会社東芝 | Muffler for rotating electric machine |
| JPH03127676A (en) * | 1989-10-13 | 1991-05-30 | Yamazaki Kagaku Kogyo Kk | Washing apparatus |
| JPH0468088A (en) * | 1990-07-09 | 1992-03-03 | Asahi Chem Ind Co Ltd | Degreasing detergent |
| JP2586485Y2 (en) * | 1993-09-21 | 1998-12-09 | 新明和工業株式会社 | Silencer |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107406234A (en) * | 2015-03-12 | 2017-11-28 | 三菱电机株式会社 | Elevator sound arrester |
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