JP2009203007A - Safety device of elevator - Google Patents

Safety device of elevator Download PDF

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Publication number
JP2009203007A
JP2009203007A JP2008046983A JP2008046983A JP2009203007A JP 2009203007 A JP2009203007 A JP 2009203007A JP 2008046983 A JP2008046983 A JP 2008046983A JP 2008046983 A JP2008046983 A JP 2008046983A JP 2009203007 A JP2009203007 A JP 2009203007A
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elevator
rope
sheave
detachment prevention
displacement
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Hiroyuki Rikuno
洋行 陸野
Takeshi Sugiyama
武志 杉山
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Fujitec Co Ltd
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Fujitec Co Ltd
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  • Lift-Guide Devices, And Elevator Ropes And Cables (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To provide a safety device of an elevator for preventing accident, by surely detecting coming off or overlapping of a rope, without misrecognizing, since when the operation is continued in a state such that a main rope and a compensation rope of the elevator come off from sheave grooves due to vibration, such as, earthquakes or overlapped with each other, there is a high possibility of this leading to serious accidents. <P>SOLUTION: The safety device of the elevator is equipped with: a rope coming-off prevention device, provided in the vicinity part of a sheave and/or a deflector sheave of an elevator hoisting machine, and a detecting means for detecting the displacement of the rope coming-off prevention; and the detecting means is constituted such that when the displacement of the rope coming off prevention device is detected for a fixed time, the elevator is stopped. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

本発明は、エレベータのロープが地震などの振動でシーブ溝より外れたり、ロープ同士がシーブ上で重なったりすることにより引き起こされる事故を未然に防止するためのエレベータの安全装置に関するものである。   The present invention relates to a safety device for an elevator for preventing an accident caused by an elevator rope coming off a sheave groove due to vibrations such as an earthquake or overlapping ropes on the sheave.

従来のエレベータ装置においては、地震などの振動でエレベータのロープがシーブ溝より外れたり、ロープ同士がシーブ上で重なったりすることがあり、そのような状態でエレベータを運転すると、ロープの早期摩耗やロープの破断などを引き起こして重大事故に繋がる可能性があった。   In a conventional elevator system, the elevator rope may come off the sheave groove due to vibrations such as an earthquake, or the ropes may overlap each other on the sheave. There was a possibility of causing a serious accident by causing the rope to break.

このため、エレベータの各種ロープが巻掛けされる並行した複数の溝車のロープ進入口部分にロープ外れ止め部材を設け、このロープ外れ止め部材に上記並列した溝車の各ロープ溝と対向し円弧状態を形成したエレベータ用ロープ外れ止め装置（特許文献１）或いは、エレベータ巻上機の綱車及びそらせ車の近傍部にロープ外れ止め装置を設け、ロープ外れ止め装置の変位を検出してエレベータを停止させる構成としたものがある（特許文献２）。
実公平０３−００８６９５号公報 特開２００１−１６３５４１号公報 For this reason, a rope detachment prevention member is provided at a rope entrance portion of a plurality of parallel sheaves on which various ropes of the elevator are wound, and the rope detachment member is opposed to each rope groove of the parallel flutes and has an arc. A rope detachment prevention device (Patent Document 1) for forming an elevator or a rope detachment prevention device in the vicinity of a sheave and a deflector of an elevator hoist, and detecting the displacement of the rope detachment prevention device There exists what was made into the structure made to stop (patent document 2).
No. 03-008695 JP 2001-163541 A

しかし、上記特許文献１に記載の発明では、ロープ外れ止め部材を全ての場合において、十分な剛性を保証することは装置が大型化するなど、実用的ではない場合が多かった。また、上記特許文献２に記載の発明では、エレベータの運転中にロープの踊りによって、一時的にロープがシーブ溝から浮き上がった場合であっても、ロープ外れ止め装置が変位を検知して不要にエレベータを停止してしまう問題があった。   However, in the invention described in Patent Document 1, it is often impractical to guarantee sufficient rigidity in all cases of the rope detachment preventing member, such as an increase in the size of the device. Further, in the invention described in Patent Document 2, even when the rope is temporarily lifted from the sheave groove by the dance of the rope during the operation of the elevator, the rope detachment preventing device detects the displacement and becomes unnecessary. There was a problem of stopping the elevator.

本発明は、上記事情に鑑みてなされたもので、エレベータのロープ外れ止め部材の過剰な剛性を不要とすることで小型化ができ、また、不要にエレベータを停止することなく、エレベータのメインロープ或いはコンペンロープが地震などの振動でシーブ溝から外れた状態或いはロープ同士がシーブ上で重なった状態を確実に検知し、ロープの早期摩耗や破断などによる重大事故を未然に防止するエレベータの安全装置を提供することにある。 The present invention has been made in view of the above circumstances, and it is possible to reduce the size by eliminating the excessive rigidity of the rope detachment preventing member of the elevator, and it is possible to reduce the main rope of the elevator without stopping the elevator unnecessarily. Or the safety device of an elevator that prevents the serious accident due to the early wear or breakage of the rope by reliably detecting the state where the compensatory rope is detached from the sheave groove due to vibration such as an earthquake or the state where the ropes overlap each other on the sheave Is to provide.

本発明のエレベータの安全装置は、エレベータ巻上機のシーブ及び／又はソラセシーブの近傍部に設けられるロープ外れ止め防止装置と、前記ロープ外れ止め防止装置の変位を検知する検出装置とを備え、前記検出装置は前記ロープ外れ止め防止装置の変位を一定時間検知するとエレベータを停止することを特徴としている。 An elevator safety device according to the present invention includes a rope detachment prevention device provided in the vicinity of a sheave and / or a sora sheave of an elevator hoist, and a detection device that detects a displacement of the rope detachment prevention device, The detection device is characterized in that the elevator is stopped when the displacement of the rope detachment prevention device is detected for a certain period of time.

本発明によれば、エレベータ巻上機のシーブ及び／又はソラセシーブの近傍部に設けられるロープ外れ止め防止装置の変位を検知する検出装置が、エレベータの運転中にロープ外れ止め防止装置の変位を一定時間検知するとエレベータを停止するようにしているので、エレベータの運転中にロープの踊りなどによって、一時的にロープがシーブ溝から浮き上がったとしても、前記検出装置がロープ外れ止め防止装置の変位を一定時間検知するほどには到っていないから不要にエレベータを停止することはない。従って、エレベータの乗客に不審感や不安感を与えることなく、ロープがシーブ溝から外れた状態或いはロープ同士がシーブ上で重なった状態であると誤検出することもないからエレベータを円滑かつ効率よく利用することが出来る。また、エレベータの運転中にロープがシーブ溝から外れた状態或いはロープ同士がシーブ上で重なった状態を一定時間内に検出するので、ロープの早期摩耗や破断などによる重大事故を未然に防止することが可能である。 According to the present invention, the detection device for detecting the displacement of the rope detachment prevention device provided in the vicinity of the sheave and / or the sorase sheave of the elevator hoisting machine keeps the displacement of the rope detachment prevention device constant during the operation of the elevator. When the time is detected, the elevator is stopped. Therefore, even if the rope temporarily rises from the sheave groove due to the rope dancing during the operation of the elevator, the detection device keeps the displacement of the rope slip prevention device constant. The elevator is not stopped unnecessarily because the time is not reached. Therefore, without giving a sense of suspicion or anxiety to the elevator passengers, there is no false detection that the rope is out of the sheave groove or the ropes are overlapped on the sheave. It can be used. In addition, during the operation of the elevator, the state in which the rope has been removed from the sheave groove or the state in which the ropes overlapped on the sheave is detected within a certain time, so that serious accidents due to early wear or breakage of the rope can be prevented in advance. Is possible.

以下、本発明の実施例について図面を用いて説明する。 Embodiments of the present invention will be described below with reference to the drawings.

図１は本発明の実施の形態１におけるエレベータの安全装置の構成図であり、１はエレベータのシーブ、２はメインロープ、１０はロープ外れ止め防止装置、１０ａはフレーム、１０ｂはレバー、１０ｃはバネ、１２はロープ外れ止め防止装置の変位検出装置である。ロープ外れ止め防止装置１０はシーブ１に隣接するフレーム１０ａと上下にスライドするレバー１０ｂとバネ１０ｃから構成され、レバー１０ｂはロープ外れ止め防止機能を有し、バネ１０ｃは通常時（安全装置が機能していない状態）のフレーム１０ａとレバー１０ｂの距離を一定に保っている。 FIG. 1 is a configuration diagram of an elevator safety device according to Embodiment 1 of the present invention. 1 is an elevator sheave, 2 is a main rope, 10 is a rope detachment prevention device, 10a is a frame, 10b is a lever, and 10c is A spring 12 is a displacement detection device of the rope detachment prevention device. The rope detachment prevention device 10 includes a frame 10a adjacent to the sheave 1, a lever 10b that slides up and down, and a spring 10c. The lever 10b has a rope detachment prevention function, and the spring 10c is normal (the safety device functions). The distance between the frame 10a and the lever 10b in a state of not being) is kept constant.

実施の形態１によると、ロープの踊りなどで一時的にメインロープ２がシーブ１溝から浮き上がって、ロープ外れ止め防止装置１０のレバー１０ｂを上方向に押し上げても、すぐにメインロープ２がシーブ１溝に戻るので、レバー１０ｂもバネ１０ｃの反作用によって下方向に押し下げられて元の位置に戻る。従って、ロープの踊りなどによっては、ロープ外れ止め防止装置１０の変位を変位検出装置１２が一定時間検知することに満たないので、エレベータを不要に停止することはない。 According to the first embodiment, even if the main rope 2 is temporarily lifted from the sheave 1 groove due to a rope dance or the like and the lever 10b of the rope detachment prevention device 10 is pushed upward, the main rope 2 is immediately sheaveed. Since it returns to the first groove, the lever 10b is also pushed downward by the reaction of the spring 10c to return to the original position. Therefore, depending on the dance of the rope and the like, it is less than the displacement detection device 12 detecting the displacement of the rope detachment prevention device 10 for a certain period of time, so the elevator is not stopped unnecessarily.

しかし、地震などの振動によってメインロープ２がシーブ１溝から外れると、メインロープ２によってロープ外れ止め防止装置１０のレバー１０ｂが上方向に押し上げられた状態になり、ロープ外れ止め防止装置１０の変位を変位検出装置１２が一定時間検知するので、エレベータを停止或いは運転禁止にする。 However, when the main rope 2 is detached from the sheave 1 groove due to vibration such as an earthquake, the lever 10b of the rope detachment prevention device 10 is pushed upward by the main rope 2, and the displacement of the rope detachment prevention device 10 is displaced. Is detected by the displacement detection device 12 for a certain period of time, so that the elevator is stopped or operation is prohibited.

次に、図２は、実施の形態１によるエレベータの安全装置の処理動作を説明するフローチャートである。
例えば、通常の地震発生によって、エレベータのロープ外れ止め防止装置１０の変位を検知する変位検出装置１２がロープ外れ止め防止装置１０の変位を検知すると（ステップＳ１）、エレベータの運転状況を判断し（ステップＳ２）、エレベータが停止状態であればエレベータを運転禁止にする（ステップＳ５）。一方、エレベータが運転状態で前記変位検出装置１２がロープ外れ止め防止装置１０の変位を一定時間検知すると（ステップＳ３）、エレベータを非常停止後、エレベータを最寄り階に停止して乗客を降車し（ステップＳ４）、エレベータを運転禁止にする（ステップＳ５）。エレベータの運転禁止後も前記変位検出装置１２は作動し（ステップＳ６）、前記変位検出装置１２がエレベータのロープ外れ止め防止装置１０の変位を検知しなくなれば、エレベータを通常運転に自動復旧する（ステップＳ７）。
以上により、本発明によれば、前記変位検出装置１２がロープの踊りなどによる一時的な浮き上がりとロープ外れの状態を誤認識することはなく、本当に危険な場合にエレベータを停止してロープの早期摩耗や破断などによる重大事故を未然に防止することが出来る。
また、本発明によれば、地震の振動などでエレベータのロープがシーブ溝で上下するだけであっても、前記変位検出装置１２がロープ外れ止め防止装置１０の変位を一定時間検知すれば、エレベータを運転禁止にする。しかし、振動停止後に前記変位検出装置１２がロープ外れ止め防止装置１０の変位を検知しなくなれば、安全な状態（ロープがシーブ溝から外れていない或いはロープ同士が重なっていない）であると判断して、エレベータを運転禁止から通常運転に自動復旧するようにしたので、不要にエレベータを運転禁止にすることもなくエレベータを円滑かつ効率よく利用することが出来る。 Next, FIG. 2 is a flowchart illustrating the processing operation of the elevator safety device according to the first embodiment.
For example, when the displacement detection device 12 that detects the displacement of the elevator rope prevention device 10 detects a displacement of the rope prevention device 10 due to the occurrence of a normal earthquake (step S1), the operation status of the elevator is determined ( Step S2) If the elevator is stopped, the elevator is prohibited from operating (step S5). On the other hand, when the elevator is in operation and the displacement detection device 12 detects the displacement of the rope detachment prevention device 10 for a certain period of time (step S3), after the emergency stop of the elevator, the elevator is stopped at the nearest floor and the passengers get off ( Step S4), prohibiting the operation of the elevator (step S5). Even after the elevator operation is prohibited, the displacement detection device 12 operates (step S6). If the displacement detection device 12 does not detect the displacement of the elevator rope prevention device 10, the elevator is automatically restored to normal operation ( Step S7).
As described above, according to the present invention, the displacement detection device 12 does not misrecognize the temporary lift and rope disengagement due to the dance of the rope or the like. Serious accidents due to wear or fracture can be prevented.
Further, according to the present invention, even if the elevator rope simply moves up and down in the sheave groove due to earthquake vibration or the like, if the displacement detection device 12 detects the displacement of the rope detachment prevention device 10 for a certain time, the elevator Prohibit driving. However, if the displacement detection device 12 does not detect the displacement of the rope detachment prevention device 10 after the vibration is stopped, it is determined that it is in a safe state (the rope is not detached from the sheave groove or the ropes are not overlapped). Since the elevator is automatically restored from the operation prohibition to the normal operation, the elevator can be used smoothly and efficiently without unnecessary prohibition of the operation of the elevator.

図３は本発明の実施の形態２におけるエレベータの安全装置の構成図であり、１はエレベータのシーブ、２はメインロープ、１１はロープ外れ止め防止装置、１１ａはフレーム、１１ｂはレバー、１１ｃは回転軸、１２はロープ外れ止め防止装置の変位検出装置である。ロープ外れ止め防止装置１１はシーブ１に隣接するフレーム１１ａと回転自在なレバー１１ｂと回転軸１１ｃから構成され、レバー１１ｂはロープ外れ止め防止機能を有し、回転軸１１ｃは通常時（安全装置が機能していない状態）のフレーム１１ａとレバー１１ｂを垂直に固定している。 FIG. 3 is a configuration diagram of an elevator safety device according to Embodiment 2 of the present invention. 1 is an elevator sheave, 2 is a main rope, 11 is a rope detachment prevention device, 11a is a frame, 11b is a lever, and 11c is A rotation shaft 12 is a displacement detection device of a rope detachment prevention device. The rope detachment prevention device 11 includes a frame 11a adjacent to the sheave 1, a rotatable lever 11b, and a rotation shaft 11c. The lever 11b has a rope detachment prevention function, and the rotation shaft 11c is normally operated (the safety device is The frame 11a and the lever 11b in a non-functioning state are fixed vertically.

実施の形態２によると、ロープの踊りなどで一時的にメインロープ２がシーブ１溝から浮き上がって、ロープ外れ止め防止装置１１のレバー１１ｂを上方向に押し上げても、すぐにメインロープ２がシーブ１溝に戻るので、レバー１１ｂも回転軸１１ｃを基点にして自重によって下方向に押し下げられて元の位置に戻る。従って、ロープの踊りなどによっては、ロープ外れ止め防止装置１１の変位を変位検出装置１２が一定時間検知することに満たないので、エレベータを不要に停止することはない。 According to the second embodiment, even if the main rope 2 is temporarily lifted from the sheave 1 groove due to a rope dance or the like, and the lever 11b of the rope detachment prevention device 11 is pushed upward, the main rope 2 is immediately sheaveed. Since it returns to the first groove, the lever 11b is also pushed downward by its own weight with the rotating shaft 11c as a base point, and returns to its original position. Therefore, depending on the dance of the rope or the like, it is less than the displacement detection device 12 detecting the displacement of the rope detachment prevention device 11 for a certain period of time, so the elevator is not stopped unnecessarily.

しかし、地震などの振動によってメインロープ２がシーブ１溝から外れると、メインロープ２によってロープ外れ止め防止装置１１のレバー１１ｂが上方向に押し上げられた状態になり、ロープ外れ止め防止装置１１の変位を変位検出装置１２が一定時間検知するので、エレベータを停止或いは運転禁止にする。 However, when the main rope 2 is disengaged from the sheave 1 groove due to vibration such as an earthquake, the lever 11b of the rope detachment prevention device 11 is pushed upward by the main rope 2, and the displacement of the rope detachment prevention device 11 is displaced. Is detected by the displacement detection device 12 for a certain period of time, so that the elevator is stopped or operation is prohibited.

尚、本発明は、通常の地震発生時のみでなく、通常運転時で、例えば高層ビルで、風揺れの影響や遠隔地での地震に寄る長周期地震動によるロープの異常振動で引き起こされるロープ外れ或いは、ロープ同士の重なりによる異常事態の検知も可能であることは言うまでもないことである。
その他、本発明は上記の実施例に限定されるものではなく、本発明の要旨を逸脱しない範囲で、種々の改変を施すことができる。 It should be noted that the present invention is not only in the case of a normal earthquake, but also in normal operation, for example, in a high-rise building, due to the effects of wind fluctuations or abnormal vibrations of the rope due to long-period ground motions due to earthquakes in remote areas. Needless to say, it is also possible to detect an abnormal situation due to the overlapping of ropes.
In addition, the present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the gist of the present invention.

本発明の実施の形態１におけるエレベータの安全装置の構成図である。It is a block diagram of the safety device of the elevator in Embodiment 1 of this invention. 本発明の実施の形態１におけるエレベータの安全装置の動作を示すフローチャート図である。It is a flowchart figure which shows operation | movement of the safety device of the elevator in Embodiment 1 of this invention. 本発明の実施の形態２におけるエレベータの安全装置の構成図である。It is a block diagram of the safety device of the elevator in Embodiment 2 of this invention.

符号の説明Explanation of symbols

１ シーブ
２ メインロープ
１０ ロープ外れ止め防止装置
１０ａ フレーム
１０ｂ レバー
１０ｃ バネ
１１ ロープ外れ止め防止装置
１１ａ フレーム
１１ｂ レバー
１１ｃ 回転軸
１２ 変位検出装置 DESCRIPTION OF SYMBOLS 1 Sheave 2 Main rope 10 Rope detachment prevention device 10a Frame 10b Lever 10c Spring 11 Rope detachment prevention device 11a Frame 11b Lever 11c Rotating shaft 12 Displacement detection device

Claims (5)

エレベータ巻上機のシーブ及び／又はソラセシーブの近傍部に設けられるロープ外れ止め防止装置と、前記ロープ外れ止め防止装置の変位を検知する検出装置とを備え、前記検出装置は前記ロープ外れ止め防止装置の変位を一定時間検知するとエレベータを停止することを特徴とするエレベータの安全装置。 A rope detachment prevention device provided in the vicinity of a sheave and / or a sora sheave of an elevator hoisting machine, and a detection device for detecting a displacement of the rope detachment prevention device, wherein the detection device is the rope detachment prevention device The elevator safety device is characterized in that the elevator is stopped when the displacement of the vehicle is detected for a certain period of time. エレベータ巻上機のシーブ及び／又はソラセシーブの近傍部に設けられるロープ外れ止め防止装置と、前記ロープ外れ止め防止装置の変位を検知する検出装置とを備え、前記検出装置は前記ロープ外れ止め防止装置の変位を一定時間検知するとエレベータを停止させ、その後、前記検出装置が前記ロープ外れ止め防止装置の変位を検知しなくなれば、運転禁止から通常状態に自動復旧することを特徴とするエレベータの安全装置。 A rope detachment prevention device provided in the vicinity of a sheave and / or a sora sheave of an elevator hoisting machine, and a detection device for detecting a displacement of the rope detachment prevention device, wherein the detection device is the rope detachment prevention device The elevator safety device is characterized in that the elevator is stopped when the displacement of the vehicle is detected for a certain period of time, and after that, if the detection device does not detect the displacement of the rope detachment prevention device, the operation is automatically restored from the operation prohibition to the normal state. . 前記ロープ外れ止め防止装置は、上下にスライドするレバー機構を設けたことを特徴とする請求項１又は請求項２に記載のエレベータの安全装置。 The elevator safety device according to claim 1 or 2, wherein the rope detachment prevention device includes a lever mechanism that slides up and down. 前記ロープ外れ止め防止装置は、回転自在なレバー機構を設けたことを特徴とする請求項１又は請求項２に記載のエレベータの安全装置。 The elevator safety device according to claim 1 or 2, wherein the rope detachment prevention device is provided with a rotatable lever mechanism. 前記検出装置は、リミットスイッチとしたことを特徴とする請求項１乃至請求項４の何れかに記載のエレベータの安全装置。 5. The elevator safety device according to claim 1, wherein the detection device is a limit switch.
JP2008046983A 2008-02-28 2008-02-28 Safety device of elevator Pending JP2009203007A (en)

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JP2011152961A (en) * 2010-01-26 2011-08-11 Mitsubishi Electric Building Techno Service Co Ltd Elevator rope detachment detection device and elevator control device
JP2012162349A (en) * 2011-02-04 2012-08-30 Toshiba Elevator Co Ltd Elevator system including rope crossing detector
CN105460728A (en) * 2016-01-15 2016-04-06 任世良 Protecting device for preventing elevator car from moving accidentally at parking floor position
CN106256739A (en) * 2016-08-30 2016-12-28 江苏兴华胶带股份有限公司 A kind of knotting automatic stop arrangement of compensated chain automatic coiling equipment
CN111170118A (en) * 2020-03-12 2020-05-19 重庆迈高电梯有限公司 Rope end combined structure suitable for low elevator running space

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JP2011152961A (en) * 2010-01-26 2011-08-11 Mitsubishi Electric Building Techno Service Co Ltd Elevator rope detachment detection device and elevator control device
JP2012162349A (en) * 2011-02-04 2012-08-30 Toshiba Elevator Co Ltd Elevator system including rope crossing detector
CN105460728A (en) * 2016-01-15 2016-04-06 任世良 Protecting device for preventing elevator car from moving accidentally at parking floor position
CN106256739A (en) * 2016-08-30 2016-12-28 江苏兴华胶带股份有限公司 A kind of knotting automatic stop arrangement of compensated chain automatic coiling equipment
CN111170118A (en) * 2020-03-12 2020-05-19 重庆迈高电梯有限公司 Rope end combined structure suitable for low elevator running space
CN111170118B (en) * 2020-03-12 2024-05-28 重庆迈高电梯有限公司 Rope end combined structure suitable for low elevator running space

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