JP2005213004A - Under-car sheave type elevator device - Google Patents

Under-car sheave type elevator device Download PDF

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JP2005213004A
JP2005213004A JP2004024151A JP2004024151A JP2005213004A JP 2005213004 A JP2005213004 A JP 2005213004A JP 2004024151 A JP2004024151 A JP 2004024151A JP 2004024151 A JP2004024151 A JP 2004024151A JP 2005213004 A JP2005213004 A JP 2005213004A
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car
guide
emergency stop
lower frame
type elevator
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JP2004024151A
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Mamoru Yamada
護 山田
Yukiomi Mizuno
幸臣 水野
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Mitsubishi Electric Corp
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Mitsubishi Electric Corp
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Priority to JP2004024151A priority Critical patent/JP2005213004A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B7/00—Other common features of elevators
    • B66B7/02—Guideways; Guides
    • B66B7/021—Guideways; Guides with a particular position in the shaft

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  • Maintenance And Inspection Apparatuses For Elevators (AREA)
  • Lift-Guide Devices, And Elevator Ropes And Cables (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To solve a problem that a machine room-less elevator with a small space for installation, which is increasing in number in recent years, is required to make its size below a car floor surface smaller. <P>SOLUTION: A widthwise longitudinal car underframe is provided under a center part of an elevator car floor in a direction orthogonal to the depth direction. A pair of sheaves is supported at both longitudinal end parts of the underframe. Emergency stop devices and guide shoes are provided on one side face and the other side face of the both longitudinal end parts of the underframe. A pair of guide rails is arranged in a state of being shifted forward and backward from each other in the depth direction so as to correspond to the emergency stop device and the guide shoe. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

この発明は、吊り車を介してエレベーターかごを吊る せり上げ式エレベーター装置に関するものである。   The present invention relates to a lift-type elevator apparatus that suspends an elevator car via a suspension vehicle.

従来の、せり上げ式のエレべ−ターでは、エレベーターかごの重心をバランス良く吊るため、例えば特許文献１、特許文献２のように、エレベーターかご枠の下に、吊り車取り付け梁を斜めに交差させて吊る方法が用いられていた。又、例えば特許文献３、特許文献４のように、かご枠の枠体を少しずらしその横に、吊り車取り付け梁を並べたものが提案されていた。   In a conventional lift-type elevator, in order to suspend the center of gravity of the elevator car in a well-balanced manner, as shown in Patent Document 1 and Patent Document 2, for example, the suspension car mounting beam is crossed diagonally under the elevator car frame. The method of suspending was used. Further, for example, as in Patent Document 3 and Patent Document 4, a car frame frame is slightly shifted and a suspension vehicle mounting beam is arranged next to it.

特開２００１−２４７２７８号公報JP 2001-247278 A 特開２００２−８７７３２号公報JP 2002-87732 A 特開２００１−８０８５２号公報JP 2001-80852 A 特開平３−８６８６号公報Japanese Patent Laid-Open No. 3-8686

近年増加している機械室レスエレベーターでは、スペースが小さくてできるが、かご床面から下の寸法を更に小さくすることが要求されている。
特許文献１、２に示されたエレベーターでは、斜めに吊り車取り付け梁を組み合わせることでエレベーターかごを重心で吊ることができ、ガイドシューに掛かる偏荷重を小さくすることができるが、専用の吊り車取り付け梁が必要で、この吊り車取り付け梁をかご枠の下梁に強固に取り付けるための部材が必要であり、上記の要求に反し床面から下の寸法Ｈを大きくする必要があった。又、製作の面からは、斜め部材が多く寸法出しや加工上コストが掛かるといつた問題があつた。
特許文献３、４では、床下の高さＨは低くすることができるが、エレベーターかごの吊りバランスが悪くガイドシューに偏荷重が掛かるなどの問題と、非常時緩衝器にエレベーターかごが落下した場合、吊り車と吊り車取り付け梁の荷重をかご枠で支えるための強度が必要となるといつた問題もあつた。 Machine room-less elevators, which have been increasing in recent years, can be made with a small space, but are required to further reduce the dimension below the car floor.
In the elevators shown in Patent Documents 1 and 2, the elevator car can be suspended at the center of gravity by combining the suspension car mounting beams diagonally, and the unbalanced load on the guide shoe can be reduced. An attachment beam is required, and a member for firmly attaching the suspension vehicle attachment beam to the lower beam of the car frame is required, and it is necessary to increase the dimension H below the floor surface against the above requirement. In terms of manufacturing, there are many problems when the number of slanted members is large and the processing cost is high.
In Patent Documents 3 and 4, the underfloor height H can be lowered, but the elevator car is not properly balanced and the load on the guide shoe is unbalanced, and the elevator car falls on the emergency buffer. When there was a need for strength to support the load of the suspension car and the beam attached to the suspension car with the car frame, there was a problem.

この発明に係わる せり上げ式エレベーター装置は、かご床の中心部を通る床下に奥行き方向と直交する方向に横長状かご下枠を設け、このかご下枠の両端部に一対の吊り車を配設し、上記かご下枠の一端部の一方側面に非常止め装置とガイドシューとを設ける共に他端部の他方側面に非常止め装置とガイドシューとを設け、昇降路内の両側壁に立設した両ガイドレールを、上記非常止め装置とガイドシューとに対応するよう奥行き方向の前後にずらせて配設したものである。   In the lift type elevator apparatus according to the present invention, a horizontally long car lower frame is provided in a direction perpendicular to the depth direction under the floor passing through the center of the car floor, and a pair of suspension vehicles are provided at both ends of the car lower frame. In addition, an emergency stop device and a guide shoe are provided on one side surface of one end portion of the car lower frame, and an emergency stop device and a guide shoe are provided on the other side surface of the other end portion, and are erected on both side walls in the hoistway. Both guide rails are arranged to be shifted back and forth in the depth direction so as to correspond to the safety device and the guide shoe.

この発明の せり上げ式エレベーター装置によれば、エレベーターかごは、昇降路内の両側壁に奥行き方向の前後にずらせて配設したガイドレールによって昇降するので、エレベーターかごの吊りバランスに偏りが少なくガイドシューの磨耗を小さく抑えることが出来る。又、かご下枠と吊り車取り付け梁を兼用したので軽く、安価でスペースも小さく納められ、床下の高さ寸法Ｈも小さくすることができる。また斜め材がないので製作も簡単で量産に最適である。   According to the lift type elevator apparatus of the present invention, the elevator car is lifted and lowered by the guide rails arranged on both side walls in the hoistway so as to be shifted back and forth in the depth direction, so that there is little bias in the lifting balance of the elevator car. Shoe wear can be kept small. In addition, since the car lower frame and the suspension car mounting beam are combined, it is light and inexpensive, can be stored in a small space, and the height dimension H under the floor can be reduced. Also, since there is no slanted material, it is easy to manufacture and optimal for mass production.

以下、図面に基づいて、この発明の各実施の形態を説明する。
なお、各図間において、同一符号は同一あるいは相当部分を示す。 Hereinafter, embodiments of the present invention will be described with reference to the drawings.
In addition, the same code | symbol shows the same or an equivalent part between each figure.

実施の形態１．
図１は、エレベーターかご１のかご床２に、吊り車１２を配置したこの発明の実施の形態１であるせり上げ式のエレべ−ターの基本構成を示す平面図である。
巻き上げロープ１１により吊り上げられ、昇降路の両側壁に立設した一対のガイドレールに案内されて昇降する実施の形態１に係るエレベーターかご１は、次のように構成されている。
すなわち、エレベーターかご１は、かご枠柱３と、かご枠上梁４と、横長状（例えば角パイプ形状）のかご下枠５などを骨格とし、特にかご下枠５は、かご床２の中心部を通る床下部分に、奥行き方向と直交する方向に配置されている。このように、かご下枠５をエレベーターかご１の奥行き中央部に配置した結果、一対のガイドレール１３は、巻き上げロープ１１を避けるように、且つ後述する非常止め装置６とガイドシュー１０ａ、１０ｂとに対応するよう、奥行き方向の前後にずらせてかご下枠５を間にして配置されている。
又、かご下枠５の長手両端部下面には、この長手両端部の両側面に架設された軸１２ａ（吊り車の）により支持された吊り車１２が、その両端部に納まるよう切り欠き部５ａが設けられている。したがって、かご下枠５は、従来の吊り車取り付け梁を兼用している。 Embodiment 1 FIG.
FIG. 1 is a plan view showing a basic configuration of a lift-type elevator according to Embodiment 1 of the present invention in which a suspension wheel 12 is arranged on a car floor 2 of an elevator car 1.
The elevator car 1 according to the first embodiment, which is lifted by a hoisting rope 11 and guided by a pair of guide rails erected on both side walls of the hoistway, is configured as follows.
That is, the elevator car 1 has a car frame column 3, a car frame upper beam 4, a horizontally long (for example, square pipe-shaped) car lower frame 5, etc., and the car lower frame 5 is particularly the center of the car floor 2. It is arrange | positioned in the direction orthogonal to the depth direction in the lower floor part which passes a part. Thus, as a result of arranging the car lower frame 5 at the center of the depth of the elevator car 1, the pair of guide rails 13 avoids the hoisting rope 11 and is provided with an emergency stop device 6 and guide shoes 10a, 10b described later. Are arranged with the car lower frame 5 in between, shifted in the front-rear direction in the depth direction.
In addition, on the lower surfaces of both ends of the car lower frame 5, notches are provided so that the suspension wheels 12 supported by the shafts 12a (for suspension vehicles) erected on both sides of the both ends of the cage are accommodated at both ends. 5a is provided. Therefore, the car lower frame 5 also serves as a conventional suspension car mounting beam.

非常止め装置６及びその下方に位置するガイドシユー１０ｂは、かご下枠５の各側面に次のように取付けられている。
非常止め装置６は、周知のごとく楔状非常止め制動体６ａ、制動体の押圧体６ｂ、ローラー６ｃ、制動体作動レバー６ｄ、非常止め支持枠６ｅ、馬蹄形バネ６ｆ等で構成され、かご下枠の一端部の一方側面と他端部の他方側面に張り出して取り付けた一対の非常止め支持枠６ｅで支持されている。すなわち、一対の非常止め装置と一対のガイドシューとは、かご下枠の一端部の一方側面と他端部の他方側面に取り付けた構成となっている。
又、楔状非常止め制動体６ａを作動させる制動体作動レバー６ｄと、先端部のロープ掴み部７ｂで調速機のガバナロープ８を掴んだ作動レバー７とは、かご下枠５に支持された一本の作動軸７ａにより共動するよう一体に支持されている。
したがって、作動レバー７は、調速機の停止動作によるガバナーロープ８の停止とエレベーターかご１の降下動作で作動し、作動レバー６ｄを作動、すなわちエレベーターかご１を非常停止させる駆動源となる（非常止め装置６の基本動作については、例えば特開平５−１４７８５６号公報参照）。
更に又、この非常止め装置６は、かご下枠５の長手両端部に一対設けられているので、このかご下枠５の胴体内に内蔵された連結装置の連結棒１５によって連結され、共動する構造になっている。 The emergency stop device 6 and the guide shoe 10b located therebelow are attached to each side surface of the car lower frame 5 as follows.
As is well known, the emergency stop device 6 includes a wedge-shaped emergency stop brake body 6a, a brake body pressing body 6b, a roller 6c, a brake body operating lever 6d, an emergency stop support frame 6e, a horseshoe spring 6f, and the like. It is supported by a pair of emergency stop support frames 6e that are attached to project from one side surface of the one end and the other side surface of the other end. That is, the pair of safety devices and the pair of guide shoes are configured to be attached to one side surface of one end portion of the car lower frame and the other side surface of the other end portion.
Also, the brake body operating lever 6d for operating the wedge-shaped emergency stop brake body 6a and the operating lever 7 for gripping the governor rope 8 of the governor with the rope gripping portion 7b at the tip are supported by the car lower frame 5. It is integrally supported by the book operating shaft 7a so as to co-operate.
Therefore, the operation lever 7 is operated by stopping the governor rope 8 by the stop operation of the governor and the lowering operation of the elevator car 1, and is the driving source for operating the operation lever 6d, that is, for emergency stopping the elevator car 1 (emergency For the basic operation of the stopper 6, see, for example, Japanese Patent Laid-Open No. 5-147856.
Furthermore, a pair of the emergency stop devices 6 are provided at both longitudinal ends of the car lower frame 5, so that they are connected by a connecting rod 15 of a connecting device built in the car body of the car lower frame 5, and cooperate with each other. It has a structure to do.

非常止め装置６の下方に位置するガイドシュー１０ｂは、上記したように非常止め装置６と同様にかご下枠の一端部の一方側面と他端部の他方側面に張り出して取付けられている。又、上部のガイドシュー１０ａは、図２に示すようにかご枠上梁４の側面に取り付けられている。これらのガイドシューは、当然ガイドローラとすることもできる。
なお、６ｈは連結棒１５の長さ調節を行う点検口、９ａは緩衝器、９ｂ緩衝器当て板である。 As described above, the guide shoe 10b located below the emergency stop device 6 is attached so as to protrude from one side surface of the one end portion of the car lower frame and the other side surface of the other end portion as in the case of the emergency stop device 6. The upper guide shoe 10a is attached to the side surface of the car frame upper beam 4 as shown in FIG. Of course, these guide shoes may be guide rollers.
In addition, 6h is an inspection port for adjusting the length of the connecting rod 15, 9a is a shock absorber, and a 9b shock absorber contact plate.

上記のごとく、エレベーターかご１は、ガイドレール１３を奥行き方向の前後にずらせたので、かごの吊りバランスに偏りなく円滑に昇降させることができ、ガイドシュー１０ａ、１０ｂの磨耗を小さく抑えることが出来る。又、かご下枠５と吊り車１２が同一方向となり、かご下枠５で吊り車取り付け梁を兼用できる。   As described above, the elevator car 1 has the guide rail 13 shifted back and forth in the depth direction, so that the elevator car 1 can be lifted and lowered smoothly without being biased to the suspension balance of the car, and wear of the guide shoes 10a and 10b can be kept small. . Further, the car lower frame 5 and the suspension car 12 are in the same direction, and the car lower frame 5 can also serve as a suspension car mounting beam.

実施の形態２．
図６は、この発明の実施の形態２におけるエレベーターかごの平面図で、図１に相当するものである。
図７は、図６におけるガイドレール外れ止めを拡大して示す詳細図である。
このガイドレール外れ止めは、外れ止め本体１４、ガイドローラ１４ａ、ローラ軸１４ｂで構成され、上下のガイドシュー１０ａ、１０ｂ、又は下側のガイドシユー１０ｂにレールの外れ易い方向１５に取り付けたもので、その他の構成は実施の形態１と同様であるので、説明を省略する。 Embodiment 2. FIG.
6 is a plan view of an elevator car according to Embodiment 2 of the present invention and corresponds to FIG.
FIG. 7 is an enlarged detailed view of the guide rail detachment stopper in FIG.
This guide rail detachment prevention is composed of a detachment prevention main body 14, a guide roller 14a, and a roller shaft 14b, and is attached to the upper and lower guide shoes 10a, 10b or the lower guide shoe 10b in the direction 15 in which the rail is easily detached. Since other configurations are the same as those of the first embodiment, the description thereof is omitted.

このガイドレール外れ止めは、一対のガイドレールのずらせた間隔を大きくした時、エレベーターかごがガイドレール１３から外れるのを防止するために設けられている。又、このローラガイド付き外れ止めを設置することにより、エレベーターかごが反時計回りに回転するのを防ぎ、レールからガイドシューが外れないようにする効果が得られる。   The guide rail detachment stopper is provided to prevent the elevator car from coming off the guide rail 13 when the distance between the pair of guide rails is increased. In addition, by installing the roller guide with the stopper, it is possible to prevent the elevator car from rotating counterclockwise and prevent the guide shoe from being removed from the rail.

この発明の実施の形態１におけるエレベーターかごの基本構成を示す平面図である。It is a top view which shows the basic composition of the elevator car in Embodiment 1 of this invention. この発明の実施の形態１におけるエレベーターかご全体を示す斜視図である。It is a perspective view which shows the whole elevator car in Embodiment 1 of this invention. エレベーターかごのかご下枠部分を示す正面図である。It is a front view which shows the car lower frame part of an elevator car. 図３のＡ−Ａ線を矢印方向に見た非常止め装置部分を示す断面図である。It is sectional drawing which shows the emergency stop apparatus part which looked at the AA line of FIG. 3 in the arrow direction. 図３のＢ−Ｂ線を矢印方向に見たガイドシュー取り付け部分を示す断面図である。It is sectional drawing which shows the guide shoe attachment part which looked at the BB line of FIG. 3 in the arrow direction. この発明の実施の形態２におけるエレベーターかごの平面図である。It is a top view of the elevator car in Embodiment 2 of this invention. ガイドレール外れ止め部分の詳細図である。It is detail drawing of a guide rail detachment prevention part.

符号の説明Explanation of symbols

１ エレベーターかご ２ かご床
３ かご枠柱 ４ かご枠上梁
５ かご下枠 ５ａ 切り欠き部
５ｂ 点検口 ６ 非常止め装置
６ａ 楔状非常止め制動体 ６ｂ 制動体の押圧体
６ｃ ローラー ６ｄ 制動体作動レバー
６ｅ 非常止め支持枠 ６ｆ 馬蹄形バネ
７ 作動レバー ７ａ 作動軸
７ｂ ロープ掴み部 ８ ガバナーロープ
９ａ 緩衝器 ９ｂ 緩衝器当て板
１０ａ、１０ｂ ガイドシュー １１ 巻き上げロープ
１２ 吊り車 １２ａ 吊り車の軸
１３ ガイドレール １５ 連結棒
１４ 外れ止め本体 １４ａ ガイドローラ
１４ｂ ローラ軸 DESCRIPTION OF SYMBOLS 1 Elevator car 2 Car floor 3 Car frame pillar 4 Car frame upper beam 5 Car lower frame 5a Notch part 5b Inspection port 6 Emergency stop device 6a Wedge-shaped emergency stop brake body 6b Brake body pressing body 6c Roller 6d Brake body operation lever 6e Emergency stop support frame 6f Horseshoe spring 7 Actuation lever 7a Actuation shaft 7b Rope gripping part 8 Governor rope 9a Shock absorber 9b Shock absorber pad 10a, 10b Guide shoe 11 Hoisting rope 12 Suspension car 12a Suspension car shaft 13 Guide rail 15 Connecting rod 14 Detachment body 14a Guide roller 14b Roller shaft

Claims (4)

昇降路内の両側壁にそれぞれガイドレールを立設した、せり上げ式のエレべ−ター装置において、かご床の中心部を通る床下に奥行き方向と直交する方向に横長状かご下枠を設け、このかご下枠の両端部に一対の吊り車を配設し、上記かご下枠の一端部の一方側面に非常止め装置とガイドシューとを設ける共に他端部の他方側面に非常止め装置とガイドシューとを設け、上記両ガイドレールを、上記非常止め装置とガイドシューとに対応するよう奥行き方向の前後にずらせて配設したことを特徴とするせり上げ式エレベーター装置。   In a lift-type elevator device in which guide rails are erected on both side walls in the hoistway, a horizontally long car lower frame is provided in the direction perpendicular to the depth direction under the floor passing through the center of the car floor, A pair of suspension wheels are provided at both ends of the car lower frame, an emergency stop device and a guide shoe are provided on one side surface of the one end portion of the car lower frame, and the emergency stop device and guide are provided on the other side surface of the other end portion. A lift type elevator apparatus characterized in that a shoe is provided, and the both guide rails are arranged to be shifted back and forth in the depth direction so as to correspond to the emergency stop device and the guide shoe. 上記非常止め装置に設けた楔状制動体を作動させる制動体作動レバーと、調速機に掛けられたガバナロープを掴み上記調速機の停止動作により作動するガバナロープの作動レバーとを備え、上記制動体作動レバーの作動軸と、ガバナロープの作動レバーの作動軸とを、共動させるため同一軸としたことを特徴とする請求項１記載のせり上げ式エレベーター装置。   A brake body actuating lever for actuating a wedge-shaped brake body provided in the emergency stop device, and a governor rope actuating lever for grasping a governor rope hung on the speed governor and actuating by stopping the speed governor. 2. The lift type elevator apparatus according to claim 1, wherein an operating shaft of the operating lever and an operating shaft of the operating lever of the governor rope are made the same shaft so as to move together. 上記かご下枠端部の一方側面と他方側面とに設けた一対の上記非常止め装置を連結し共動させる連結装置を設けたことを特徴とする請求項１記載のせり上げ式エレベーター装置。   The lift type elevator apparatus according to claim 1, further comprising a connecting device for connecting and cooperating with a pair of the safety devices provided on one side surface and the other side surface of the car lower frame end. 上記ガイドシューに、上記ガイドレールに対向してガイドレール外れ止めを取付けたことを特徴とする請求項１〜請求項３のいずれか１項に記載のせり上げ式エレベーター装置。   The lift-type elevator apparatus according to any one of claims 1 to 3, wherein a guide rail detachment stop is attached to the guide shoe so as to face the guide rail.
JP2004024151A 2004-01-30 2004-01-30 Under-car sheave type elevator device Pending JP2005213004A (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008162717A (en) * 2006-12-27 2008-07-17 Mitsubishi Electric Corp Car suspension sheave fitting device and rope anchoring device
CN101837921A (en) * 2009-03-11 2010-09-22 东芝电梯株式会社 The car of elevator
JP2011051736A (en) * 2009-09-02 2011-03-17 Toshiba Elevator Co Ltd Elevator device
JP2011093714A (en) * 2011-02-14 2011-05-12 Toshiba Elevator Co Ltd Car of elevator
WO2020049714A1 (en) * 2018-09-07 2020-03-12 三菱電機株式会社 Car-suspending wheel assembly

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JPS5711178U (en) * 1980-06-24 1982-01-20
JPS59120770U (en) * 1983-02-02 1984-08-14 株式会社日立製作所 Elevator guide device removal prevention
JPH07237852A (en) * 1994-02-15 1995-09-12 Otis Elevator Co Hoisting drum type home-use elevator
JPH10139321A (en) * 1996-11-11 1998-05-26 Inventio Ag Elevator equipment having driving device in elevator shaft
JP2000233882A (en) * 1999-02-16 2000-08-29 Hitachi Building Systems Co Ltd Elevator
WO2003043927A2 (en) * 2001-11-23 2003-05-30 Inventio Ag Elevator with belt-type means of transmission, especially a toothed belt, as a means of support or driving means
JP2003327370A (en) * 2002-05-02 2003-11-19 Inventio Ag Apparatus to engage safety braking device for elevator car

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Publication number Priority date Publication date Assignee Title
JPS5711178U (en) * 1980-06-24 1982-01-20
JPS59120770U (en) * 1983-02-02 1984-08-14 株式会社日立製作所 Elevator guide device removal prevention
JPH07237852A (en) * 1994-02-15 1995-09-12 Otis Elevator Co Hoisting drum type home-use elevator
JPH10139321A (en) * 1996-11-11 1998-05-26 Inventio Ag Elevator equipment having driving device in elevator shaft
JP2000233882A (en) * 1999-02-16 2000-08-29 Hitachi Building Systems Co Ltd Elevator
WO2003043927A2 (en) * 2001-11-23 2003-05-30 Inventio Ag Elevator with belt-type means of transmission, especially a toothed belt, as a means of support or driving means
JP2003327370A (en) * 2002-05-02 2003-11-19 Inventio Ag Apparatus to engage safety braking device for elevator car

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008162717A (en) * 2006-12-27 2008-07-17 Mitsubishi Electric Corp Car suspension sheave fitting device and rope anchoring device
CN101837921A (en) * 2009-03-11 2010-09-22 东芝电梯株式会社 The car of elevator
JP2010208822A (en) * 2009-03-11 2010-09-24 Toshiba Elevator Co Ltd Elevator car
JP2011051736A (en) * 2009-09-02 2011-03-17 Toshiba Elevator Co Ltd Elevator device
CN102001568A (en) * 2009-09-02 2011-04-06 东芝电梯株式会社 Elevator
JP2011093714A (en) * 2011-02-14 2011-05-12 Toshiba Elevator Co Ltd Car of elevator
WO2020049714A1 (en) * 2018-09-07 2020-03-12 三菱電機株式会社 Car-suspending wheel assembly
CN112654575A (en) * 2018-09-07 2021-04-13 三菱电机株式会社 Car suspension wheel assembly

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