JP2004155519A - Elevator device - Google Patents

Elevator device Download PDF

Info

Publication number
JP2004155519A
JP2004155519A JP2002320248A JP2002320248A JP2004155519A JP 2004155519 A JP2004155519 A JP 2004155519A JP 2002320248 A JP2002320248 A JP 2002320248A JP 2002320248 A JP2002320248 A JP 2002320248A JP 2004155519 A JP2004155519 A JP 2004155519A
Authority
JP
Japan
Prior art keywords
car
hoistway
approach
elevator
cars
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.)
Granted
Application number
JP2002320248A
Other languages
Japanese (ja)
Other versions
JP4113760B2 (en
Inventor
Satoru Kato
覚 加藤
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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
Application filed by Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP2002320248A priority Critical patent/JP4113760B2/en
Publication of JP2004155519A publication Critical patent/JP2004155519A/en
Application granted granted Critical
Publication of JP4113760B2 publication Critical patent/JP4113760B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B11/00—Main component parts of lifts in, or associated with, buildings or other structures
    • B66B11/0065—Roping
    • B66B11/008—Roping with hoisting rope or cable operated by frictional engagement with a winding drum or sheave
    • B66B11/0095—Roping with hoisting rope or cable operated by frictional engagement with a winding drum or sheave where multiple cars drive in the same hoist way

Landscapes

  • Engineering & Computer Science (AREA)
  • Civil Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
  • Cage And Drive Apparatuses For Elevators (AREA)
  • Elevator Control (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To provide an elevator device capable of preventing abnormal mutual approach of two cars ascending and descending on one elevating path. <P>SOLUTION: Both of the first car 3 and the second car 4 are arranged on one elevating path of a shaft 1, the first car 3 and a first balance weight 6 are mutually connected by a first main rope 4, and the second car 4 and a second balance weight 9 are mutually connected by a second main rope 10. Length of the second main rope 10 is set to such length that both of the first balance weight 6 and the second balance weight 9 hit mutually when both of them approach each other abnormally in the case where an unexpected situation occurs. Both of cars hit mutually before both of the cars approach mutually by exceeding a predetermined interval in the case where the unexpected situation occurs. Consequently, it is possible to prevent a bad condition in which both of the cars approach mutually and abnormally. <P>COPYRIGHT: (C)2004,JPO

Description

【０００１】
【発明の属する技術分野】
この発明は、昇降路の一つの昇降経路に二台のかごが配置されて、これらのかごが互いに連係してそれぞれ運転されるエレベーター装置に関する。
【０００２】
【従来の技術】
一つの昇降経路に複数台のかごが配置されて、これらのかごが互いに連係してそれぞれ運転されるワンシャフトマルチカーエレベーターは従来、次に述べるように構成されていた。すなわち、上側エレベーター用巻上機の駆動により上側巻上ロープを介して上側つり合おもりと対向して走行し、中央部に上下に貫通するロープダクトが設けられた上側エレベーターかごが設けられる。
【０００３】
また、前記上側エレベーターかごと同一の昇降路内においてこの上側エレベーターかごの下方に位置し、下側エレベーター用巻上機の駆動により上側エレベーターかごの中央部のロープダクトを貫通する下側巻上ロープを介して下側つり合おもりと対向して走行して上側エレベーターかごと別個独立に走行可能な下側エレベーターかごとが設けられている（例えば、特許文献１参照。）。
【０００４】
【特許文献１】
特開平５−２０１６５３号公報（第２頁、図１、図２）
【０００５】
【発明が解決しようとする課題】
前述の従来のエレベーター装置、すなわちワンシャフトマルチカーエレベーターでは、一つの昇降経路に二台のかごを配置してそれぞれ昇降運転する場合に、二台のかごの運転方向、運転速度、運転位置をそれぞれ確認しながら協調して制御して二台のかごの相互が異常接近する不具合を防ぐようになっている。しかし、巻上機の駆動綱車と巻上ロープとの間の滑り等の不測の事態が発生したときには、二台のかごが相互に異常接近する不具合が生じるという問題点があった。
【０００６】
この発明は、かかる問題点を解消するためになされたものであり、一つの昇降経路を昇降する二台のかご相互における異常接近を防ぐエレベーター装置を得ることを目的とする。
【０００７】
【課題を解決するための手段】
この発明に係るエレベーター装置においては、昇降路の所定経路を昇降する第一かごと、昇降路近くに設けられた第一巻上機に巻掛けられ、一端に第一かごが連結されて他端には昇降路を昇降する第一つり合おもりが連結された第一主索と、第一かごと同じ所定経路を昇降し第一かごの下側に配置された第二かごと、昇降路近くに設けられた第二巻上機に巻掛けられ、一端に第二かごが連結されて他端には第一つり合おもりの上側に配置されて昇降路を昇降する第二つり合おもりが連結され、第一かご及び第二かごが相互に所定間隔を超えて接近したときに第一つり合おもり及び第二つり合おもりが相互に行き当たる長さに張設された第二主索とが設けられる。
【０００８】
【発明の実施の形態】
実施の形態１．
図１は、この発明の実施の形態の一例を概念的に示す斜視図である。図において、昇降路１の上端寄りに第一巻上機２が設けられ、また図示が省略してあるが昇降路１に立設された案内レールが設けられ、この案内レールに案内されて所定経路を昇降する第一かご３が設けられる。そして、第一主索４が第一巻上機２の駆動綱車及び第一巻上機２に近接して設けられたそらせ車５に巻掛けられて張設され、一端に第一かご３が連結されて他端には昇降路１を昇降する第一つり合おもり６が連結される。
【０００９】
また、昇降路１の第一巻上機２位置よりも上側に第二巻上機７が設けられ、また第二かご８が第一かご３の下側に配置され、第二かご８は第一かご３が案内される案内レールに案内されて第一かご３と同じ所定経路を昇降する。そして、昇降路１を昇降する第二つり合おもり９が、第一つり合おもり６の上側に配置される。
【００１０】
そして、第二主索１０が第二巻上機７の駆動綱車及び第二巻上機７に近接して設けられたそらせ車１１に巻掛けられて張設され、一端に第二かご８が連結されて第一かご３の両側を経て配置され、他端に第二つり合おもり９が連結される。また、第二主索１０は第一かご３及び第二かご８が相互に所定間隔を超えて接近したときに、第一つり合おもり６及び第二つり合おもり９が相互に行き当たる長さに張設される。
【００１１】
なお、第一主索４は第二つり合おもり９に設けられた上下方向の貫通孔に挿通されて吊設される。そして、緩衝器１２が第一つり合おもり６に設けられて上方に突出し、第二つり合おもり９の下面と対向して配置される。
【００１２】
上記のように構成されたエレベーター装置において、昇降路１の一つの昇降経路に第一かご３及び第二かご８の両者を配置して、それぞれのかごの運転方向、運転速度、運転位置をそれぞれ確認しながら協調して制御して上記両者の相互が異常接近しないように運転される。そして第二主索１０の長さが、上記両者が相互に所定間隔を超えて接近したときに、第一つり合おもり６及び第二つり合おもり９の双者が相互に行き当たる長さに設定される。
【００１３】
このため、第一巻上機２、第二巻上機７の駆動綱車と、その駆動綱車に巻掛けられた主索との間における滑り発生等の不測の事態によって、上記両者が相互に所定間隔を超えて接近したときに上記双者が相互に行き当たる。これにより、上記両者が相互に異常接近する不具合の発生を未然に防ぐことができる。
【００１４】
また、第一つり合おもり６に緩衝器１２が上方に突出して設けられて、第二つり合おもり９の下面と対向して配置される。このため、上記両者が相互に所定間隔を超えて接近したときに上記双者が相互に行き当たるときの衝撃が緩衝される。これにより、上記双者の変形等の発生を防ぐことができ、また上記双者が相互に行き当たることによって上記両者に生じる衝撃力を軽減することができる。
【００１５】
また、緩衝器１２が第二つり合おもり９の下面から下方に突出して設けられて、第一つり合おもり６の上面と対向して配置された構成であっても、図１の実施の形態における作用を得ることができる。
【００１６】
実施の形態２．
図２〜図４は、この発明の他の実施の形態の一例を示す図で、図２はエレベーターの要部を概念的に示す斜視図、図３は図２のエレベーターの機器の配置及び機器の電気的接続を概念的に示す図、図４は図２のエレベーターの他の機器の配置及びその機器の電気的接続を概念的に示す図である。図において、前述の図１と同符号は相当部分を示す。
【００１７】
そして、昇降路１に第一検出装置１３が設けられ、第一検出装置１３は昇降路１の上方に枢着された駆動車１４、昇降路１の下方に配置された張り車１５、無端状をなし駆動車１４及び張り車１５に巻掛けられて一側が第一かご３に連結された巻掛条体１６並びに駆動車１４によって駆動される第一検出器１７によって形成される。
【００１８】
また、昇降路１に第二検出装置１８が設けられ、第二検出装置１８は昇降路１の上方に枢着された駆動車１９、昇降路１の下方に配置された張り車２０、無端状をなし駆動車１９及び張り車２０に巻掛けられて一側が第二かご８に連結された巻掛条体２１並びに駆動車１９によって駆動される第二検出器２２によって形成される。
【００１９】
そして、第一検出器１７に第一位置演算器２３及び第一速度演算器２４が接続され、第二検出器２２に第二位置演算器２５及び第二速度演算器２６が接続される。また、第一減算器２７が第一位置演算器２３及び第二位置演算器２５に接続され、第二減算器２８が第一速度演算器２４及び第二速度演算器２６に接続される。
【００２０】
また、判定装置２９が設けられて第一速度演算器２４、第二速度演算器２６、第一減算器２７及び第二減算器２８が接続される。そして、判定装置２９に接続された第一制御装置３０が設けられて第一巻上機２の電動機３１及び制動機３２に接続され、また判定装置２９に接続された第二制御装置３３が設けられて第二巻上機７の電動機３４及び制動機３５に接続される。
【００２１】
また、第一速度演算器２４に接続された第一制動距離演算器３６、第二速度演算器２６に接続された第二制動距離演算器３７が設けられる。そして、第一制動距離演算器３６及び第二制動距離演算器３７に接続された第三減算器３８が設けられ、また第二減算器２８及び第三減算器３８が接続されて判定装置２９に接続された比較器３９が設けられる。
【００２２】
上記のように構成されたエレベーター装置において、昇降路１の一つの昇降経路に第一かご３及び第二かご８の両者を配置して、それぞれのかごの運転方向、運転速度、運転位置をそれぞれ確認しながら協調して制御し上記両者の相互が異常接近しないように運転される。
【００２３】
そして、上記両者が相互に所定間隔を超えて接近したときに、第二主索１０の長さが第一つり合おもり６及び第二つり合おもり９の双者が相互に行き当たる長さに設定される。また、第一つり合おもり６に緩衝器１２が設けられて、第二つり合おもり９に対向して配置される。したがって、詳細な説明を省略するが図２〜図４の実施の形態においても図１の実施の形態と同様な作用が得られる。
【００２４】
また、図２〜図４の実施の形態において、第一検出器１７の動作による第一かご３に関わる信号から第一位置演算器２３により第一かご３の昇降路１における絶対位置ｙＵが演算され、また第一速度演算器２４により第一かご３の速度ｖＵが演算される。そして、第二検出器２２の動作による第二かご８に関わる信号から第二位置演算器２５により第二かご８の昇降路１における絶対位置ｙＬが演算され、また第二速度演算器２６により第二かご８の速度ｖＬが演算される。
【００２５】
そして、第二かご８を基準とした場合の第一かご３と第二かご８との相対位置は、第一減算器２７により第一かご３の絶対位置から第二かご８の絶対位置を減算することによって算出される。また、第二かご８を基準とした場合の第一かご３と第二かご８との相対速度は、第二減算器２８により第一かご３の絶対速度から第二かご８の絶対速度を減算することによって算出される。
【００２６】
このようにして得られた第一かご３の速度ｖＵ、第二かご８の速度ｖＬ、第一かご３と第二かご８の相対位置（ｙＵ−ｙＬ）及び第一かご３と第二かご８の相対速度（ｖＵ−ｖＬ）が判定装置２９へ入力される。
また、判定装置２９での判定が次に述べるように行われる。すなわち、第一かご３と第二かご８の両者の相対位置及び相対速度は第二かご８を基準として算出し、この場合に相対速度が正のときは第二かご８から第一かご３が離れる方向に移動するので上記両者に異常接近が生じることはない。
【００２７】
しかし、上記両者の相対速度が負のときは上記両者が互いに接近する方向に移動するが、上記両者相互間の距離が十分長い場合は相対速度が負であっても不都合が発生することはない。しかし、上記両者相互間の距離が短い場合には上記両者相互の異常接近が生じる可能性が生じてくる。
【００２８】
そして、上記両者の相対速度が負の場合における上記両者の異常接近が生じる可能性の有無の判定が次に述べるようにして行われる。すなわち、第一かご３が速度ｖＵから非常制動されて停止するまでに移動する距離を第一制動距離演算器３６によって演算してその結果をｙＵＥとする。また、第二かご８が速度ｖＬから非常制動されて停止するまでに移動する距離を第二制動距離演算器３７によって演算してその結果をｙＬＥとする。
【００２９】
そして、上記両者の制動距離の差（ｙＵＥ−ｙＬＥ）を減算器３８によって算出し、この制動距離の差（ｙＵＥ−ｙＬＥ）とその時の相対距離（ｙＵ−ｙＬ）との差を比較器３９によって比較する。この比較結果が負の場合は、上記両者の少なくとも一方を昇降させると異常接近が生じる可能性があるので、比較器３９の負の出力によって判定装置２９が動作し急停止指令が発せられる。
【００３０】
この判定装置２９の急停止指令によって、第一制御装置３０を介して第一巻上機２の電動機３１が消勢され、また制動機３２が制動動作し、また第二制御装置３３を介して第二巻上機７の電動機３４が消勢され、また制動機３５が制動動作する。これによって、上記両者が相互に異常接近する不具合の発生を未然に防ぐことができる。
【００３１】
なお、図３及び図４に示す上記両者の異常接近防止制御回路を、エレベーター一般の制御回路とは別に独立回路として設置する。そして、異常接近防止制御回路により上記両者に関わる距離や速度を検定することによって、上記両者の異常接近発生を一層確実に防止することができる。
【００３２】
また、図２〜図４の実施の形態における第一かご３及び第二かご８の両者の異常接近防止制御回路を、昇降路１の一つの昇降経路に三台以上のかごが配置されたワンシャフトマルチカーエレベーターに容易に応用することができる。これによって、一つの昇降経路に三台以上のかごが配置されたワンシャフトマルチカーエレベーターからなるエレベーター装置において、かごが相互に異常接近する不具合の発生を未然に防ぐことができる。
【００３３】
【発明の効果】
この発明は以上説明したように、昇降路の所定経路を昇降する第一かごと、昇降路近くに設けられた第一巻上機に巻掛けられ、一端に第一かごが連結されて他端には昇降路を昇降する第一つり合おもりが連結された第一主索と、第一かごと同じ所定経路を昇降し第一かごの下側に配置された第二かごと、昇降路近くに設けられた第二巻上機に巻掛けられ、一端に第二かごが連結されて他端には第一つり合おもりの上側に配置されて昇降路を昇降する第二つり合おもりが連結され、第一かご及び第二かごが相互に所定間隔を超えて接近したときに第一つり合おもり及び第二つり合おもりが相互に行き当たる長さに張設された第二主索とを設けたものである。
【００３４】
これによって、昇降路１の一つの昇降経路に第一かご及び第二かごの両者を配置して、それぞれのかごの運転方向、運転速度、運転位置をそれぞれ確認しながら協調して制御して上記両者の相互が異常接近しないように運転される。そして、不測の事態発生によって上記両者が相互に所定間隔を超えて接近したときに、第二主索の長さが第一つり合おもり及び第二つり合おもりの双者が相互に行き当たる長さに設定される。このため、不測の事態発生時に上記両者が相互に所定間隔を超えて接近したときに上記双者が相互に行き当たる。これにより、上記両者が相互に異常接近する不具合の発生を未然に防ぐ効果がある。
【図面の簡単な説明】
【図１】この発明の実施の形態１を概念的に示す斜視図。
【図２】この発明の実施の形態２を示す図で、エレベーターの要部を概念的に示す斜視図。
【図３】図２のエレベーターの機器の配置及び機器の電気的接続を概念的に示す図。
【図４】図２のエレベーターの他の機器の配置及びその機器の電気的接続を概念的に示す図。
【符号の説明】
１ 昇降路、 ２ 第一巻上機、 ３ 第一かご、 ４ 第一主索、 ６ 第一つり合おもり、 ７ 第二巻上機、 ８ 第二かご、 ９ 第二つり合おもり、 １０ 第二主索、 １２ 緩衝器、 １７ 第一検出器、 ２２ 第二検出器、 ２９ 判定装置、 ３２ 第一制動機、 ３５ 第二制動機。[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to an elevator apparatus in which two cars are arranged on one hoistway of a hoistway, and these cars are operated in cooperation with each other.
[0002]
[Prior art]
Conventionally, a one-shaft multi-car elevator in which a plurality of cars are arranged in one elevating route and these cars are operated in cooperation with each other has conventionally been configured as described below. That is, an upper elevator car is provided which runs in opposition to the upper counterweight via the upper hoisting rope by driving the upper elevator hoisting machine, and has a rope duct penetrating vertically in the center.
[0003]
A lower hoisting rope which is located below the upper elevator car in the same hoistway as the upper elevator car and penetrates a rope duct in a central portion of the upper elevator car by driving a lower elevator hoisting machine. There is provided a lower elevator car that can run independently of the upper elevator car that runs opposite to the lower counterweight via the vehicle (for example, see Patent Document 1).
[0004]
[Patent Document 1]
JP-A-5-201653 (page 2, FIG. 1 and FIG. 2)
[0005]
[Problems to be solved by the invention]
In the above-described conventional elevator apparatus, that is, in the one-shaft multi-car elevator, when two cars are arranged in one elevating route and the respective elevators are operated, the operating directions, operating speeds, and operating positions of the two cars are respectively changed. The two cars are controlled in a coordinated manner while checking to prevent the two cars from approaching each other abnormally. However, when an unexpected situation such as slippage between the drive sheave of the hoist and the hoisting rope occurs, there is a problem that the two cars may abnormally approach each other.
[0006]
The present invention has been made in order to solve such a problem, and an object of the present invention is to provide an elevator apparatus that prevents an abnormal approach between two cars that move up and down one elevator path.
[0007]
[Means for Solving the Problems]
In the elevator apparatus according to the present invention, the first car that moves up and down a predetermined path of the hoistway, is wound around a first hoisting machine provided near the hoistway, and the first car is connected to one end and the other end is The first main rope connected with the first weight to lift up and down the hoistway, the first car and the second car placed under the first car up and down the same predetermined path, near the hoistway A second car weight connected to one end is connected to the second hoist, and the other end is connected to the second car weight which is disposed above the first weight and is moved up and down the hoistway. When the first car and the second car approach each other beyond a predetermined interval, the first main weight and the second main rope stretched to a length at which the second weight and the second weight counter each other come into contact with each other. Provided.
[0008]
BEST MODE FOR CARRYING OUT THE INVENTION
Embodiment 1 FIG.
FIG. 1 is a perspective view conceptually showing an example of an embodiment of the present invention. In the figure, a first hoisting machine 2 is provided near an upper end of a hoistway 1, and a guide rail (not shown) provided upright on the hoistway 1 is provided. A first car 3 that moves up and down the route is provided. The first main rope 4 is wound and stretched around a drive sheave 5 of the first hoisting machine 2 and a deflecting wheel 5 provided in the vicinity of the first hoisting machine 2. Is connected to the other end thereof, and a first weight 6 that moves up and down the hoistway 1 is connected to the other end.
[0009]
Further, a second hoisting machine 7 is provided above the position of the first hoisting machine 2 in the hoistway 1, a second car 8 is disposed below the first car 3, and the second car 8 is One car 3 is guided by a guide rail on which the car is guided, and moves up and down the same predetermined route as the first car 3. Then, the second counterweight 9 that moves up and down the hoistway 1 is arranged above the first counterweight 6.
[0010]
Then, the second main rope 10 is wound and stretched around a drive sheave of the second hoisting machine 7 and a deflecting wheel 11 provided in the vicinity of the second hoisting machine 7, and has a second car 8 at one end. Are connected to each other via both sides of the first car 3, and the second counterweight 9 is connected to the other end. The second main rope 10 has a length that the first counterweight 6 and the second counterweight 9 reach each other when the first car 3 and the second car 8 approach each other beyond a predetermined interval. Is stretched over.
[0011]
In addition, the first main rope 4 is inserted into a vertical through hole provided in the second counterweight 9 and is suspended therefrom. Then, a shock absorber 12 is provided on the first counterweight 6 and protrudes upward, and is arranged to face the lower surface of the second counterweight 9.
[0012]
In the elevator apparatus configured as described above, both the first car 3 and the second car 8 are arranged in one hoistway of the hoistway 1, and the operation direction, the operation speed, and the operation position of each car are respectively set. The operation is performed such that the two do not abnormally approach each other by performing cooperative control while checking. The length of the second main rope 10 is set such that when the two approach each other beyond a predetermined distance, the first weight 6 and the second weight 9 can reach each other. Is set.
[0013]
For this reason, due to an unexpected situation such as the occurrence of slippage between the drive sheave of the first hoisting machine 2 and the second hoisting machine 7 and the main rope wound around the drive sheave, the two can be mutually reciprocated. When they approach each other beyond a predetermined interval, the two come to each other. Thereby, it is possible to prevent a problem in which the above-mentioned two approaches abnormally close to each other.
[0014]
Further, a shock absorber 12 is provided on the first counterweight 6 so as to protrude upward, and is arranged to face the lower surface of the second counterweight 9. For this reason, when the two come close to each other beyond a predetermined interval, the shock when the two come into contact with each other is buffered. As a result, it is possible to prevent deformation of the twins and the like, and it is possible to reduce an impact force generated between the twins when the twins come into contact with each other.
[0015]
Further, even if the shock absorber 12 is provided so as to protrude downward from the lower surface of the second counterweight 9 and is arranged to face the upper surface of the first counterweight 6, the embodiment of FIG. Can be obtained.
[0016]
Embodiment 2 FIG.
2 to 4 are views showing an example of another embodiment of the present invention. FIG. 2 is a perspective view conceptually showing a main part of the elevator, and FIG. 3 is a layout and equipment of the elevator equipment of FIG. FIG. 4 is a diagram conceptually showing the arrangement of other equipment of the elevator of FIG. 2 and the electrical connection of the equipment. In the figure, the same reference numerals as those in FIG.
[0017]
A first detection device 13 is provided in the hoistway 1, and the first detection device 13 is a driving wheel 14 pivotally mounted above the hoistway 1, a tension wheel 15 disposed below the hoistway 1, And a first detector 17 driven by the driving wheel 14, which is wound around the driving wheel 14 and the pulley 15 and has one side connected to the first car 3.
[0018]
Further, a second detecting device 18 is provided in the hoistway 1, and the second detecting device 18 is a driving wheel 19 pivotally mounted above the hoistway 1, a tension wheel 20 disposed below the hoistway 1, and an endless wheel. And a winding strip 21 wound around the driving wheel 19 and the pulley 20 and having one side connected to the second car 8, and a second detector 22 driven by the driving wheel 19.
[0019]
Then, the first position calculator 23 and the first speed calculator 24 are connected to the first detector 17, and the second position calculator 25 and the second speed calculator 26 are connected to the second detector 22. The first subtractor 27 is connected to the first position calculator 23 and the second position calculator 25, and the second subtractor 28 is connected to the first speed calculator 24 and the second speed calculator 26.
[0020]
Further, a determination device 29 is provided, and the first speed calculator 24, the second speed calculator 26, the first subtractor 27, and the second subtractor 28 are connected. Then, a first control device 30 connected to the determination device 29 is provided and connected to the electric motor 31 and the brake 32 of the first hoisting machine 2, and a second control device 33 connected to the determination device 29 is provided. And connected to the electric motor 34 and the brake 35 of the second hoisting machine 7.
[0021]
Further, a first braking distance calculator 36 connected to the first speed calculator 24 and a second braking distance calculator 37 connected to the second speed calculator 26 are provided. A third subtractor 38 connected to the first braking distance calculator 36 and the second braking distance calculator 37 is provided, and a second subtractor 28 and a third subtractor 38 are connected to the determination device 29. A connected comparator 39 is provided.
[0022]
In the elevator apparatus configured as described above, both the first car 3 and the second car 8 are arranged in one hoistway of the hoistway 1, and the operation direction, the operation speed, and the operation position of each car are respectively set. The operation is performed in a coordinated manner while confirming, so that the two do not abnormally approach each other.
[0023]
Then, when the two approach each other beyond a predetermined interval, the length of the second main rope 10 is set to a length at which the twins of the first balance weight 6 and the second balance weight 9 reach each other. Is set. In addition, a shock absorber 12 is provided on the first counterweight 6 and is arranged to face the second counterweight 9. Therefore, although detailed description is omitted, the same operation as the embodiment of FIG. 1 can be obtained in the embodiments of FIGS.
[0024]
In the embodiment of FIGS. 2 to 4, the absolute position y U of the first car 3 in the hoistway 1 is calculated by the first position calculator 23 from the signal related to the first car 3 by the operation of the first detector 17. is calculated, also the speed v U of the first cage 3 is computed by the first speed calculator 24. Then, the absolute position y L of the second car 8 in the hoistway 1 is calculated by the second position calculator 25 from the signal related to the second car 8 by the operation of the second detector 22, and the second speed calculator 26 The speed v L of the second car 8 is calculated.
[0025]
Then, the relative position between the first car 3 and the second car 8 based on the second car 8 is obtained by subtracting the absolute position of the second car 8 from the absolute position of the first car 3 by the first subtractor 27. Is calculated. The relative speed between the first car 3 and the second car 8 based on the second car 8 is obtained by subtracting the absolute speed of the second car 8 from the absolute speed of the first car 3 by the second subtractor 28. Is calculated.
[0026]
The thus obtained velocity v U of the first cage 3, a velocity v L, the first car 3 relative position of the second cage 8 (y U -y L) and the first cage 3 second cage 8 the relative speed of the second car 8 (v U -v L) is input to the decision unit 29.
The determination by the determination device 29 is performed as described below. That is, the relative position and the relative speed of both the first car 3 and the second car 8 are calculated based on the second car 8, and in this case, when the relative speed is positive, the first car 3 is moved from the second car 8. Since they move away from each other, there is no possibility that both of them will approach abnormally.
[0027]
However, when the relative speed of the two is negative, the two move in the direction approaching each other, but when the distance between the two is sufficiently long, no inconvenience occurs even if the relative speed is negative. . However, when the distance between the two is short, there is a possibility that the two may abnormally approach to each other.
[0028]
Then, when the relative speed between the two is negative, the determination as to whether or not there is a possibility that the two may abnormally approach is performed as described below. That is, the results of the distance which the first car 3 is moved until the stop is emergency braking from a speed v U is calculated by the first braking distance calculator 36 and y UE. Further, the distance that the second car 8 moves from the speed v L to the emergency braking and stops is calculated by the second braking distance calculator 37, and the result is set as y LE .
[0029]
Then, the difference (y UE −y LE ) between the above braking distances is calculated by the subtracter 38, and the difference between this braking distance (y UE −y LE ) and the relative distance (y U −y L ) at that time is calculated. The difference is compared by the comparator 39. When the comparison result is negative, when at least one of the two is raised and lowered, an abnormal approach may occur. Therefore, the negative output of the comparator 39 activates the determination device 29 and issues a sudden stop command.
[0030]
In response to the sudden stop command from the determination device 29, the electric motor 31 of the first hoisting machine 2 is deenergized via the first control device 30, the braking device 32 performs a braking operation, and via the second control device 33 The electric motor 34 of the second hoisting machine 7 is deenergized, and the brake 35 performs the braking operation. As a result, it is possible to prevent a problem in which the above-mentioned two approaches abnormally close to each other.
[0031]
The control circuit for preventing abnormal approach of both shown in FIGS. 3 and 4 is installed as an independent circuit separately from a general control circuit of an elevator. Then, the abnormal approach prevention control circuit examines the distance and the speed related to the two, so that the occurrence of the abnormal approach between the two can be more reliably prevented.
[0032]
In addition, the control circuit for preventing abnormal access of both the first car 3 and the second car 8 in the embodiment of FIGS. 2 to 4 is provided by a one-way system in which three or more cars are arranged in one hoistway of the hoistway 1. It can be easily applied to shaft multi-car elevators. As a result, in an elevator apparatus including a one-shaft multi-car elevator in which three or more cars are arranged in one elevating route, it is possible to prevent occurrence of a problem that the cars abnormally approach each other.
[0033]
【The invention's effect】
As described above, the present invention, as described above, a first car that moves up and down a predetermined path of a hoistway, is wound around a first hoist provided near a hoistway, and a first car is connected to one end and the other end is The first main rope connected with the first weight to lift up and down the hoistway, the first car and the second car placed under the first car up and down the same predetermined path, near the hoistway A second car weight connected to one end is connected to the second hoist, and the other end is connected to the second car weight which is disposed above the first weight and is moved up and down the hoistway. When the first car and the second car approach each other beyond a predetermined distance, the first main weight and the second main rope are stretched to a length at which the second weight and the second weight can reach each other. It is provided.
[0034]
Thereby, both the first car and the second car are arranged in one hoistway of the hoistway 1, and the driving direction, the operating speed, and the operating position of each car are checked and controlled in a coordinated manner to perform the above. The two are operated so that they do not approach each other abnormally. Then, when the two approach each other beyond a predetermined interval due to the occurrence of an unexpected situation, the length of the second main rope is equal to the length at which the twins of the first and second weights come to each other. Is set to Therefore, when an unexpected situation occurs, when the two approach each other beyond a predetermined interval, the two come into contact with each other. This has the effect of preventing the occurrence of a problem in which the two are approaching each other abnormally.
[Brief description of the drawings]
FIG. 1 is a perspective view conceptually showing Embodiment 1 of the present invention.
FIG. 2 is a view showing the second embodiment of the present invention, and is a perspective view conceptually showing a main part of an elevator.
FIG. 3 is a diagram conceptually showing the arrangement of the equipment of the elevator of FIG. 2 and the electrical connection of the equipment.
FIG. 4 is a diagram conceptually showing an arrangement of other devices of the elevator of FIG. 2 and an electrical connection of the devices.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 hoistway, 2 1st hoisting machine, 3 1st car, 4 1st main rope, 6 1st weight, 7 2nd hoisting machine, 8 2nd car, 9 2nd weight, 10 th Two main ropes, 12 shock absorbers, 17 first detector, 22 second detector, 29 determination device, 32 first brake, 35 second brake.

Claims (3)

昇降路の所定経路を昇降する第一かごと、上記昇降路近くに設けられた第一巻上機に巻掛けられ、一端に上記第一かごが連結されて他端には上記昇降路を昇降する第一つり合おもりが連結された第一主索と、上記所定経路を昇降し上記第一かごの下側に配置された第二かごと、上記昇降路近くに設けられた第二巻上機に巻掛けられ、一端に上記第二かごが連結されて他端には上記第一つり合おもりの上側に配置されて上記昇降路を昇降する第二つり合おもりが連結され、上記第一かご及び第二かごが相互に所定間隔を超えて接近したときに上記第一つり合おもり及び第二つり合おもりが相互に行き当たる長さに張設された第二主索とを備えたエレベーター装置。A first car that moves up and down a predetermined route of the hoistway, is wound around a first hoisting machine provided near the hoistway, the first car is connected to one end, and the hoistway is lifted at the other end A first main rope to which the first weights are connected, a second car disposed on the lower side of the first car by ascending and descending the predetermined path, and a second hoist provided near the hoistway. Wound around the machine, one end is connected to the second car, and the other end is connected to a second counterweight that is disposed above the first counterweight and moves up and down the hoistway. An elevator having a second main cable stretched to a length at which the first and second weights can reach each other when the car and the second car approach each other beyond a predetermined interval. apparatus. 第一つり合おもり及び第二つり合おもりの双者の一方に設けられて上記双者の他方に対向して配置され、上記双者の衝突を緩衝する緩衝器を備えたことを特徴とする請求項１記載のエレベーター装置。A shock absorber is provided on one of the first and second counterweights and disposed opposite to the other of the two counterweights to cushion a collision between the two. The elevator device according to claim 1. 第一かごの挙動を検出する第一検出器、第二かごの挙動を検出する第二検出器並びに上記第一検出器及び第二検出器の出力によって動作して上記第一かご及び第二かごの両者それぞれの位置、速度に基づいて上記両者の相対距離及び相対位置を算出して上記両者の制動時における停止距離と相対間隔を比較し、上記両者が相互に所定間隔を超えて接近したときに上記両者の少なくとも一方の巻上機を消勢し、かつ上記一方の制動機を作動させる指令を発する判定装置とを備えたことを特徴とする請求項１及び請求項２のいずれか一つに記載のエレベーター装置。A first detector for detecting the behavior of the first car, a second detector for detecting the behavior of the second car, and the first and second cars operated by the outputs of the first and second detectors. The relative distance and relative position of the two are calculated based on the respective positions and speeds of the two, and the stopping distance and the relative distance at the time of braking are compared with each other, and when the two approach each other beyond a predetermined interval. A determining device for deactivating the at least one of the hoists and issuing a command to operate the one of the brakes. An elevator device according to claim 1.
JP2002320248A 2002-11-01 2002-11-01 Elevator equipment Expired - Fee Related JP4113760B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2002320248A JP4113760B2 (en) 2002-11-01 2002-11-01 Elevator equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2002320248A JP4113760B2 (en) 2002-11-01 2002-11-01 Elevator equipment

Publications (2)

Publication Number Publication Date
JP2004155519A true JP2004155519A (en) 2004-06-03
JP4113760B2 JP4113760B2 (en) 2008-07-09

Family

ID=32801218

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2002320248A Expired - Fee Related JP4113760B2 (en) 2002-11-01 2002-11-01 Elevator equipment

Country Status (1)

Country Link
JP (1) JP4113760B2 (en)

Cited By (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006036487A (en) * 2004-07-28 2006-02-09 Toshiba Elevator Co Ltd Elevator device
JP2007030998A (en) * 2005-07-22 2007-02-08 Hitachi Ltd Safety system for multi-car elevator
JP2009511391A (en) * 2005-10-12 2009-03-19 オーチス エレベータ カンパニー Counterweight with partially embedded shock absorber
US7650967B2 (en) 2005-02-17 2010-01-26 Otis Elevator Company Communicating to elevator passengers re car movement to pit or overhead
US7650966B2 (en) 2004-06-21 2010-01-26 Otis Elevator Company Elevator system including multiple cars in a hoistway, destination entry control and parking positions
US7753175B2 (en) 2005-02-25 2010-07-13 Otis Elevator Company Elevator car having an angled underslung roping arrangement
US7762376B2 (en) * 2006-10-31 2010-07-27 Inventio Ag Elevator with two elevator cars which are disposed one above the other in a shaft
US7784588B2 (en) 2005-02-04 2010-08-31 Otis Elevator Company Calls assigned to one of two cars in a hoistway to minimize delay imposed on either car
WO2010107423A1 (en) 2009-03-16 2010-09-23 Otis Elevator Company Arrangement of elevator machines
US7819228B2 (en) 2005-02-17 2010-10-26 Otis Elevator Company Collison prevention in hoistway with two elevator cars
US7918319B2 (en) * 2006-05-01 2011-04-05 Mitsubishi Electric Corporation Elevator apparatus
WO2011161104A1 (en) * 2010-06-23 2011-12-29 Thyssenkrupp Elevator Ag Elevator system
US8087497B2 (en) 2004-12-29 2012-01-03 Otis Elevator Company Compensation in an elevator system having multiple cars within a single hoistway
US8136635B2 (en) 2006-12-22 2012-03-20 Otis Elevator Company Method and system for maintaining distance between elevator cars in an elevator system with multiple cars in a single hoistway
CN102530683A (en) * 2004-12-16 2012-07-04 奥蒂斯电梯公司 Elevator system with multiple cars in well
US8292038B2 (en) 2007-12-05 2012-10-23 Otis Elevator Company Control device for operating two elevator cars in a single hoistway
US8307952B2 (en) 2004-12-16 2012-11-13 Otis Elevator Company Elevator system with multiple cars in a hoistway
JP2013541481A (en) * 2011-01-19 2013-11-14 スマートリフツ、エルエルシー System with multiple cars in the elevator passage
EP2712834A1 (en) * 2012-09-27 2014-04-02 Inventio AG Drive and cable guidance configuration
US8925689B2 (en) 2011-01-19 2015-01-06 Smart Lifts, Llc System having a plurality of elevator cabs and counterweights that move independently in different sections of a hoistway
CN105819305A (en) * 2016-05-06 2016-08-03 广东铃木电梯有限公司 Compensation transmission device of balancing weights of twin elevator
CN107000992A (en) * 2014-12-05 2017-08-01 通力股份公司 There is the lift appliance of multiple cars in same hoistway
CN110817654A (en) * 2019-11-22 2020-02-21 山东富士制御电梯有限公司 Single-shaft double-car elevator

Cited By (36)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7650966B2 (en) 2004-06-21 2010-01-26 Otis Elevator Company Elevator system including multiple cars in a hoistway, destination entry control and parking positions
US7917341B2 (en) 2004-06-21 2011-03-29 Otis Elevator Company Elevator system including multiple cars in a hoistway destination entry control and parking positions
JP2006036487A (en) * 2004-07-28 2006-02-09 Toshiba Elevator Co Ltd Elevator device
US8307952B2 (en) 2004-12-16 2012-11-13 Otis Elevator Company Elevator system with multiple cars in a hoistway
CN102530683A (en) * 2004-12-16 2012-07-04 奥蒂斯电梯公司 Elevator system with multiple cars in well
US8087497B2 (en) 2004-12-29 2012-01-03 Otis Elevator Company Compensation in an elevator system having multiple cars within a single hoistway
US7784588B2 (en) 2005-02-04 2010-08-31 Otis Elevator Company Calls assigned to one of two cars in a hoistway to minimize delay imposed on either car
US7819228B2 (en) 2005-02-17 2010-10-26 Otis Elevator Company Collison prevention in hoistway with two elevator cars
US7650967B2 (en) 2005-02-17 2010-01-26 Otis Elevator Company Communicating to elevator passengers re car movement to pit or overhead
US7753175B2 (en) 2005-02-25 2010-07-13 Otis Elevator Company Elevator car having an angled underslung roping arrangement
JP4552793B2 (en) * 2005-07-22 2010-09-29 株式会社日立製作所 Multi-car elevator safety system
JP2007030998A (en) * 2005-07-22 2007-02-08 Hitachi Ltd Safety system for multi-car elevator
JP2009511391A (en) * 2005-10-12 2009-03-19 オーチス エレベータ カンパニー Counterweight with partially embedded shock absorber
US7918319B2 (en) * 2006-05-01 2011-04-05 Mitsubishi Electric Corporation Elevator apparatus
US7762376B2 (en) * 2006-10-31 2010-07-27 Inventio Ag Elevator with two elevator cars which are disposed one above the other in a shaft
US8136635B2 (en) 2006-12-22 2012-03-20 Otis Elevator Company Method and system for maintaining distance between elevator cars in an elevator system with multiple cars in a single hoistway
US8292038B2 (en) 2007-12-05 2012-10-23 Otis Elevator Company Control device for operating two elevator cars in a single hoistway
EP2408705A4 (en) * 2009-03-16 2013-06-19 Otis Elevator Co Arrangement of elevator machines
WO2010107423A1 (en) 2009-03-16 2010-09-23 Otis Elevator Company Arrangement of elevator machines
EP2408705A1 (en) * 2009-03-16 2012-01-25 Otis Elevator Company Arrangement of elevator machines
CN102356039A (en) * 2009-03-16 2012-02-15 奥的斯电梯公司 Arrangement of elevator machines
RU2535956C2 (en) * 2009-03-16 2014-12-20 Отис Элевэйтор Компани Configuration of elevator drives
RU2552387C2 (en) * 2010-06-23 2015-06-10 Тиссенкрупп Элеватор Аг Hoist unit (versions)
WO2011161104A1 (en) * 2010-06-23 2011-12-29 Thyssenkrupp Elevator Ag Elevator system
CN102947209A (en) * 2010-06-23 2013-02-27 蒂森克虏伯电梯股份有限公司 Elevator system
KR101419752B1 (en) 2010-06-23 2014-07-15 티센크루프 엘리베이터 에이지 Elevator system
US8919501B2 (en) 2011-01-19 2014-12-30 Smart Lifts, Llc System having multiple cabs in an elevator shaft
US8925689B2 (en) 2011-01-19 2015-01-06 Smart Lifts, Llc System having a plurality of elevator cabs and counterweights that move independently in different sections of a hoistway
JP2013541481A (en) * 2011-01-19 2013-11-14 スマートリフツ、エルエルシー System with multiple cars in the elevator passage
JP2016040205A (en) * 2011-01-19 2016-03-24 スマートリフツ、エルエルシーＳｍａｒｔ Ｌｉｆｔｓ， Ｌｌｃ System having multiple cars in elevator shaft
EP2712834A1 (en) * 2012-09-27 2014-04-02 Inventio AG Drive and cable guidance configuration
CN107000992A (en) * 2014-12-05 2017-08-01 通力股份公司 There is the lift appliance of multiple cars in same hoistway
US10625982B2 (en) 2014-12-05 2020-04-21 Kone Corporation Elevator arrangement with multiple cars in the same shaft
CN105819305A (en) * 2016-05-06 2016-08-03 广东铃木电梯有限公司 Compensation transmission device of balancing weights of twin elevator
CN110817654A (en) * 2019-11-22 2020-02-21 山东富士制御电梯有限公司 Single-shaft double-car elevator
CN110817654B (en) * 2019-11-22 2021-03-02 山东富士制御电梯有限公司 Single-shaft double-car elevator

Also Published As

Publication number Publication date
JP4113760B2 (en) 2008-07-09

Similar Documents

Publication Publication Date Title
JP4113760B2 (en) Elevator equipment
CN101090854B (en) Device for elevator
KR101273752B1 (en) Elevator apparatus
JP4896873B2 (en) Elevator equipment
US9546074B2 (en) Elevator apparatus including an anomalous acceleration detecting mechanism
EP1927567B1 (en) Elevator device
WO2014097373A1 (en) Elevator device
JPWO2009078100A1 (en) Elevator equipment
JP5610974B2 (en) Elevator equipment
WO2016038681A1 (en) Elevator device
JP4992281B2 (en) Elevator equipment
JP2012246116A (en) Elevator device, and emergency stop test method thereof
WO2012127560A1 (en) Elevator device
JP4575076B2 (en) Elevator equipment
JP4397720B2 (en) Elevator equipment
KR20050002816A (en) Elevator equipment
JPWO2004031064A1 (en) Elevator system
JP3413868B2 (en) Linear motor drive type elevator equipment
JP3949447B2 (en) Elevator main rope runout control device
WO2019123583A1 (en) Machine room-less elevator
JP3528840B2 (en) Machine room-less elevator equipment
WO2023119548A1 (en) Elevator
JP3438697B2 (en) Machine room-less elevator equipment
JPH072466A (en) Elevator device having no main rope
KR20070069127A (en) Elevator apparatus

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20051003

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20080404

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20080408

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20080414

R150 Certificate of patent or registration of utility model

Ref document number: 4113760

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R150

Free format text: JAPANESE INTERMEDIATE CODE: R150

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20110418

Year of fee payment: 3

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20120418

Year of fee payment: 4

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20120418

Year of fee payment: 4

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20130418

Year of fee payment: 5

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20130418

Year of fee payment: 5

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20140418

Year of fee payment: 6

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

LAPS Cancellation because of no payment of annual fees