JP3578014B2 - Inspection method of emergency stop device of traction type elevator - Google Patents

Inspection method of emergency stop device of traction type elevator Download PDF

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Publication number
JP3578014B2
JP3578014B2 JP30109399A JP30109399A JP3578014B2 JP 3578014 B2 JP3578014 B2 JP 3578014B2 JP 30109399 A JP30109399 A JP 30109399A JP 30109399 A JP30109399 A JP 30109399A JP 3578014 B2 JP3578014 B2 JP 3578014B2
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JP
Japan
Prior art keywords
emergency stop
stop device
car
main
pit
Prior art date
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Expired - Fee Related
Application number
JP30109399A
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Japanese (ja)
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JP2001122550A (en
Inventor
宏一 村松
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.)
Fujitec Co Ltd
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Fujitec Co Ltd
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
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Priority to JP30109399A priority Critical patent/JP3578014B2/en
Publication of JP2001122550A publication Critical patent/JP2001122550A/en
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Description

【0001】
【発明の属する技術分野】
本発明は、主ロープが弛緩した際に動作する非常停止装置、いわゆるスラックロープセーフティをかごに備えたトラクション式エレベータにおいて、この非常停止装置の検査方法に関するものである。
【0002】
【従来の技術】
主ロープの弛緩により動作する非常停止装置は、主に油圧エレベータや巻胴式エレベータに使用されている。この非常停止装置の検査方法を油圧エレベータを例にとって図2により説明する。
【0003】
図において、油圧装置1により、シリンダ2内へ圧油が給排されることによって、上端部にプーリ3を有するプランジャ4が上下方向に進退し、これにより、主ロープ5を介して、かご6がガイドレール7に沿って昇降路8内を昇降するようになっている。
また、ピット9にはスプリングバッファ受台10、この受台10に設置したスプリング11が設けられ、かご6がピット9へ落下したときにその衝撃を吸収する緩衝器になっている。更に、主ロープ5が弛緩したときにかご6をガイドレール7に拘束して非常停止させる非常停止装置(図示省略)がかご6に設置されている。
【0004】
この種のエレベータにおいては、主ロープ6の弛緩時に前記非常停止装置が正常に動作するかどうかの検査が行われる。この検査方法は、まずスプリング11を取り外して、受台10にスタンド20、ジャッキ21を設置して、このジャッキ21によりかご6を上昇させて、主ロープ5を故意に弛緩させる。そして、ジャッキ21を下降させ、このときのかご6の降下量が所定値以下であるか否かを確認し、これにより前記非常停止装置が正常に動作しているか否かを判定するものである。
【0005】
【発明が解決しようとする課題】
油圧エレベータや巻胴式エレベータの場合は、主ロープ5の反かご6側はシリンダ2やピット9などの昇降路側に固定されているため、前記の方法で主ロープ5を弛緩させることができる。しかし、トラクション式エレベータの場合、主ロープ5の反かご6側はカウンターウエイトであるため、ジャッキ21でかご5を上昇させると、その分カウンターウエイトが下降するため、前記従来の方法では主ロープ5を弛緩させることができない、という問題があった。
【0006】
【課題を解決するための手段】
本発明は、かごに連結されている主ロープのうち任意の数の主ロープを前記かごとの連結を解除して昇降路側に固定することにより、ジャッキでかごを上昇させたときにカウンターウエイトが動かないようにしたものである。
【0007】
【発明の実施の形態】
本発明の実施の形態を図1により説明する。図において、30は昇降路8内又は機械室に設置したトラクションシーブ、31はカウンターウエイトであり、主ロープ5は3本の主ロープ5a〜5cからなっている。32a〜32cは各主ロープ5a〜5cのソケット、33は固定具、図2と同一符号は同一のものを示している。
【0008】
本実施形態における非常停止装置の検査方法は、まずスプリング11を取り外して、受台10にスタンド20、ジャッキ21を設置する。そして、主ロープ5のうち任意数の主ロープ(ここでは主ロープ1a)のソケット32aをかご6の連結から外して固定具33によりピット9に固定する。これにより、カウンターウエイト31はかご6とは無関係にピット9、即ち昇降路側に固定される。
次にジャッキ21によりかご6を上昇させて、主ロープ5b,5cを故意に弛緩させ、そしてジャッキ21を下降させて、このときのかご6の降下量が所定値以下であるか否かを確認する。
【0009】
このように、本実施形態の方法であれば、トラクション式エレベータであっても、従来と同様の方法で非常検出装置の検査を行うことができる。
尚、本実施形態において、スタンド20,ジャッキ21をスプリングバッファ受台10の上に設置しているが、ピット9に直接設置してもよい。また、主ロープ5のピット9への固定本数は1本に限ることはなく、カウンターウエイト31の重量や安全性を考慮して複数本であってもよい。更に固定具33はロッドやワイヤロープなどソケット32aとピット9とを連結できるものであればよい。また主ロープ5はピット9に直接固定しているが、建物の固定部などの昇降路側に固定できればよい。
【0010】
【発明の効果】
以上説明したように、本発明によれば、主ロープが弛緩した際に動作する非常停止装置をかごに備えたトラクション式エレベータにおいても、油圧エレベータなどの場合と同様に比較的容易な方法で検査作業を行うことができる。
【図面の簡単な説明】
【図1】本発明の実施の形態を示す図である。
【図2】従来の油圧エレベータにおける非常停止装置の検査方法を示す図である。
【符号の説明】
5,5a,5b,5c 主ロープ
6 かご
8 昇降路
9 ピット
10 スプリングバッファ受台
20 スタンド
21 ジャッキ
30 トラクションシーブ
31 カウンターウエイト
33 固定具
[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to an emergency stop device that operates when a main rope is relaxed, that is, a traction type elevator provided with a so-called slack rope safety in a car, and to an inspection method of the emergency stop device.
[0002]
[Prior art]
Emergency stop devices that operate by loosening the main rope are mainly used in hydraulic elevators and roll-to-roll elevators. This inspection method of the emergency stop device will be described with reference to FIG. 2 taking a hydraulic elevator as an example.
[0003]
In the drawing, when hydraulic oil is supplied and discharged into a cylinder 2 by a hydraulic device 1, a plunger 4 having a pulley 3 at an upper end portion advances and retreats in a vertical direction. Are moved up and down along the guide rail 7 in the hoistway 8.
The pit 9 is provided with a spring buffer receiving base 10 and a spring 11 installed on the receiving base 10, and serves as a shock absorber for absorbing the shock when the car 6 falls into the pit 9. Further, the car 6 is provided with an emergency stop device (not shown) for restraining the car 6 to the guide rail 7 and making an emergency stop when the main rope 5 is relaxed.
[0004]
In this type of elevator, an inspection is performed to determine whether the emergency stop device operates normally when the main rope 6 is relaxed. In this inspection method, first, the spring 11 is removed, the stand 20 and the jack 21 are installed on the receiving stand 10, and the car 6 is raised by the jack 21 so that the main rope 5 is intentionally relaxed. Then, the jack 21 is lowered, and it is checked whether the amount of descent of the car 6 at this time is equal to or less than a predetermined value, and thereby, it is determined whether the emergency stop device is operating normally. .
[0005]
[Problems to be solved by the invention]
In the case of a hydraulic elevator or a roll-to-roll type elevator, since the opposite cage 6 side of the main rope 5 is fixed to the hoistway side such as the cylinder 2 and the pit 9, the main rope 5 can be relaxed by the above-described method. However, in the case of a traction-type elevator, since the opposite side of the main rope 5 from the car 6 is a counterweight, raising the car 5 with the jack 21 lowers the counterweight accordingly. Can not be relaxed.
[0006]
[Means for Solving the Problems]
According to the present invention, the counter weight is released when the car is lifted by jacks by releasing the connection of the cage and fixing the arbitrary number of the main ropes among the main ropes connected to the car to the hoistway side. It does not move.
[0007]
BEST MODE FOR CARRYING OUT THE INVENTION
An embodiment of the present invention will be described with reference to FIG. In the figure, 30 is a traction sheave installed in the hoistway 8 or in the machine room, 31 is a counterweight, and the main rope 5 is composed of three main ropes 5a to 5c. 32a to 32c are sockets of the main ropes 5a to 5c, 33 is a fixture, and the same reference numerals as those in FIG.
[0008]
In the inspection method of the emergency stop device according to the present embodiment, first, the spring 11 is removed, and the stand 20 and the jack 21 are installed on the receiving stand 10. Then, sockets 32 a of an arbitrary number of main ropes (main rope 1 a in this case) of the main ropes 5 are disconnected from the car 6 and fixed to the pit 9 by the fixture 33. Thereby, the counterweight 31 is fixed to the pit 9, that is, the hoistway side irrespective of the car 6.
Next, the car 6 is raised by the jack 21, the main ropes 5b and 5c are intentionally relaxed, and the jack 21 is lowered to check whether the amount of the car 6 lowered at this time is equal to or less than a predetermined value. I do.
[0009]
As described above, according to the method of the present embodiment, even in the case of a traction-type elevator, the inspection of the emergency detection device can be performed by the same method as in the related art.
In the present embodiment, the stand 20 and the jack 21 are installed on the spring buffer receiving base 10, but may be installed directly on the pit 9. The number of the main ropes 5 fixed to the pits 9 is not limited to one, and may be plural in consideration of the weight and safety of the counterweight 31. Further, the fixing member 33 may be any one that can connect the socket 32a and the pit 9, such as a rod or a wire rope. Further, the main rope 5 is directly fixed to the pit 9, but it is sufficient that the main rope 5 can be fixed to a hoistway side such as a fixed portion of a building.
[0010]
【The invention's effect】
As described above, according to the present invention, even in a traction type elevator equipped with an emergency stop device that operates when the main rope is relaxed, the inspection is performed by a relatively easy method as in the case of a hydraulic elevator or the like. Work can be done.
[Brief description of the drawings]
FIG. 1 is a diagram showing an embodiment of the present invention.
FIG. 2 is a diagram showing a method for testing an emergency stop device in a conventional hydraulic elevator.
[Explanation of symbols]
5, 5a, 5b, 5c Main rope 6 Basket 8 Hoistway 9 Pit 10 Spring buffer cradle 20 Stand 21 Jack 30 Traction sheave 31 Counter weight 33 Fixture

Claims (2)

トラクションシーブに巻き掛けられた複数の主ロープ、前記主ロープの一側に連結されたかご、前記トラクションシーブを挟んで前記主ロープの他側に連結されたカウンターウエイト、前記かごに設けられ前記主ロープが弛緩した際に動作する非常停止装置を備えたものにおいて、
前記かごの下方に昇降装置を設置する工程と、前記主ロープのうち任意の数の主ロープを前記かごとの連結を解除して昇降路側に固定する工程と、前記昇降装置によりかごを上昇させかごに連結されている残りの主ロープを弛緩させる工程と、前記昇降装置を下降させ前記非常停止装置が作動しているか否かを確認する工程とを有するトラクション式エレベータの非常停止装置の検査方法。
A plurality of main ropes wound around a traction sheave, a basket connected to one side of the main rope, a counterweight connected to the other side of the main rope across the traction sheave, In those equipped with an emergency stop device that operates when the rope is relaxed,
Installing a lifting device below the car, releasing any number of the main ropes from the main ropes and fixing the cage to the hoistway side, and raising the car by the lifting device. A method for inspecting an emergency stop device of a traction type elevator, comprising: a step of relaxing the remaining main rope connected to the car; and a step of lowering the elevating device to check whether the emergency stop device is operating. .
前記昇降装置はピットに設置したジャッキであり、前記任意の数の主ロープはピットに固定することを特徴とする請求項1記載のトラクション式エレベータの非常停止装置の検査方法。The method according to claim 1, wherein the lifting device is a jack installed in a pit, and the arbitrary number of main ropes is fixed to the pit.
JP30109399A 1999-10-22 1999-10-22 Inspection method of emergency stop device of traction type elevator Expired - Fee Related JP3578014B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP30109399A JP3578014B2 (en) 1999-10-22 1999-10-22 Inspection method of emergency stop device of traction type elevator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP30109399A JP3578014B2 (en) 1999-10-22 1999-10-22 Inspection method of emergency stop device of traction type elevator

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JP3578014B2 true JP3578014B2 (en) 2004-10-20

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4652850B2 (en) * 2005-03-04 2011-03-16 三菱電機ビルテクノサービス株式会社 Replacement method of main ropes for traction type and lower suspension type elevators
KR100888060B1 (en) 2008-10-31 2009-03-16 주식회사 국제곤도라 Tester of stopper
CN109952262B (en) * 2016-11-21 2020-06-23 三菱电机株式会社 Method for inspecting emergency stop device of elevator

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