WO2001079105A1 - Structure d'installation d'un ascenseur sans local de machinerie, dotee d'une machine de traction montee dans une cuvette etendue - Google Patents

Structure d'installation d'un ascenseur sans local de machinerie, dotee d'une machine de traction montee dans une cuvette etendue Download PDF

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Publication number
WO2001079105A1
WO2001079105A1 PCT/KR2001/000614 KR0100614W WO0179105A1 WO 2001079105 A1 WO2001079105 A1 WO 2001079105A1 KR 0100614 W KR0100614 W KR 0100614W WO 0179105 A1 WO0179105 A1 WO 0179105A1
Authority
WO
WIPO (PCT)
Prior art keywords
car
counterweight
elevator
machine
footing
Prior art date
Application number
PCT/KR2001/000614
Other languages
English (en)
Inventor
Young-Sun Cho
Chang-Hee Lee
Original Assignee
Hyundai Elevator 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
Application filed by Hyundai Elevator Co., Ltd filed Critical Hyundai Elevator Co., Ltd
Priority to AU48904/01A priority Critical patent/AU4890401A/en
Publication of WO2001079105A1 publication Critical patent/WO2001079105A1/fr

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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
    • B66B11/04—Driving gear ; Details thereof, e.g. seals
    • 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
    • B66B11/0035—Arrangement of driving gear, e.g. location or support
    • B66B11/0045—Arrangement of driving gear, e.g. location or support in the hoistway
    • 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

Definitions

  • the present invention relates to a machine-room-less elevator installation structure. More particularly, the elevator installation structure for mounting an elevator traction machine at an extended pit of the lower portion of a shaft is capable not only to distribute a concentrated operating load generated on the elevator traction machine over members of the the elevator installation structure through the pair of car and counterweight guide rails, but also to avoid lifting of the elevator traction machine on which an operating load is applied during the operation of the elevator.
  • an inexpensive induction motor-driven elevator traction machine for the machine-room-less elevator installation structure at an extended pit of the lower portion of a "d"-shaped shaft by replacing a conventional "I" -shaped shaft which uses an expensive synchronous motor.
  • an elevator is an essential transportation means for carrying passengers or freight in multiple story buildings such as high-rise apartments or office buildings. Elevators are usually operated upwardly and downwardly through a shaft along the length of a building. Most conventional shafts are constructed to form an "I"-shaped of a square or rectangular hollow column having doors at each floor for loading and unloading passengers.
  • a car In a shaft, a car is connected to a counterweight througli a wire rope being wound up and down by an elevator traction machine for operating the car upwardly or downwardly.
  • the counterweight moves in an opposite direction against the operating direction of the car.
  • Most of guide rails of conventional elevator structures simply guide the upward or downward movement for operating the car and counterweight without supporting the operating loads.
  • the elevator system is also equipped with a control panel for controlling the car operation, a control cable linking the control panel to the car, detecting sensors for detecting the location of the car, door operating mechanisms and safety control devices.
  • a pit is formed between the lowest stopping position of an elevator for the normal operation and the bottom floor of the shaft.
  • An area of pit floor is usually identically designed all along the shaft.
  • a ladder is equipped at the bottom of the elevator for periodical checkups.
  • the elevator traction machine, elevator installation structure and arrangement are varied depending on the existence of a separated machine room in the lower portion of the shaft.
  • Fig. 1 shows a conventional elevator arrangement and structure with an elevator traction machine which is installed in a separated machine room provided at the lower end of a building.
  • a separated machine room 13 is provided outside of the lower portion of a shaft wall at the lowest level of the building basement.
  • An elevator traction machine 12 for operating a car 11 is installed on the floor of the separated machine room.
  • a wire rope 15 is wound on a pulley of the elevator traction machine 12 and connected to the car 11 and counterweight 16 through a set of sheaves installed at the ceiling and side wall of a shaft 9.
  • the conventional elevator structure is fixed on the building so that a load generated during the operation of the car is applied to an inner wall of the shaft, and further requires a separate machine room 13 located at the lowest end of the shaft 9 for installation of a traction machine. Due to the requirement of the separate machine room, the conventional elevator structure has disadvantages such as high construction costs.
  • Fig. 2 shows another conventional elevator arrangement and installation structure using a gear-less type synchronous motor as an elevator fraction machine installed in a pit floor of a shaft.
  • This conventional elevator structure does not provide a separate machine room for mounting an elevator fraction machine 21.
  • the elevator fraction machine 21 is installed against a shaft wall so that a rope between the shaft wall and a car goes straightly down to be wound up to a pulley 22 of the elevator fraction machine 21.
  • the structure of the lower elevator fraction machine 21 used in the pit is different from the elevator fraction machine 12 installed in the separate machine room and employs an expensive gearless-type synchronous motor. Because of the lack of a separate machine room, the elevator fraction machine 21 is costly designed and manufactured to fit in a pit. Thus, the elevator fraction machine 21 used in a pit must be compact such as a gear-less type synchronous motor. As a foundation for mounting the lower elevator fraction machine in a pit is directly fixed on the pit floor of a shaft 9, there is a problem that the car may be lifted up after an elapse of a long period due to weakening of fixing force for the foundation. This occasionally causes a safety hazard.
  • Fig. 1 is a conventional elevator structure and arrangement including an elevator traction machine being installed in a separated machine room at the lower end of a shaft.
  • Fig. 2 is another type of conventional elevator structure and arrangement with an another type of elevator fraction machine being installed in a pit of an elevator shaft.
  • Fig. 3 is an elevator installation structure of the present invention for mounting an elevator fraction machine at an extended pit floor.
  • Fig. 4 is a schematic drawing showing an elevator installation structure of the present invention for mounting an elevator fraction machine at the extended pit floor.
  • Fig. 5 is a schematic drawing of the present invention illustrating an elevator structure and arrangement including a set of suspension beams.
  • Fig. 6 is four-side views of rope arrangement of the present invention viewed at a clockwise direction at the center.
  • Fig. 7 is a top view of the present invention illustrating a foundation arrangement in the extended pit floor.
  • Fig. 8 is a schematic drawing of the present invention illustrating a pre-assembled fraction machine base and an elevator fraction machine. - IMPORTANT TERMINOLOGY-
  • the present invention is designed to overcome such conventional problems by developing a new concept of an elevator installation structure.
  • a purpose of the present invention is to provide a capability not only to distribute an operating load concentrated on an elevator fraction machine over each member of the structure through the pair of car and counterweight guide rails , but also to avoid the elevator fraction machine and the foundation from being lifted up due to the weight of the car and the operating load during the operation of the elevator.
  • a pair of car and counterweight guide rails is secured perpendicularly on a car buffer footing and a counterweight buffer footing respectively.
  • the distributed operating loads will depress a car buffer footing and counterweight buffer footing for preventing the foundation and the elevator fraction machine from being lifted up.
  • the machine-room-less elevator installation sfructure is effectively designed not only to distribute the concentrated operating load being generated on the elevator fraction machine over the sfructure members through the pair of car and counterweight guide rails, but also to eliminate a conventional separate machine room and minimize the installation space by extending from one side of a pit wall at the lower end of a shaft to underneath the lowest level of a building basement.
  • the present invention is able to adapt an inexpensive induction motor and to form a "d"- shaped shaft having an extended installation space.
  • a foundation comprises a long supporting beam 38, a short supporting beam 39, a car buffer footing 36 and a counterweight buffer footing 37 on a floor 31 of an extended pit 30.
  • a pair of car guide rails 34a, 34b for guiding a car is perpendicularly secured on a surface of the car buffer footing 36.
  • a pair of counterweight guide rails 32a, 32b for guiding a counterweight is perpendicularly secured on a surface of the counterweight buffer footing 37.
  • a pre-assembled fraction machine base 50 and an elevator fraction machine 35 employing an induction motor are installed on the long supporting beam 38 and the short supporting beam 39.
  • a set of car suspension beams 45 and counterweight suspension beams 47 are arranged at the top portion of each of the car guide rails 34a, 34b and the counterweiglit guide rails 32a, 32b so that the operating load generated in the car during the operation of the elevator can be distributed over the elevator fractioin machine installation sfructure, the car guide rails and the counterweight guide rails. Accordingly, unnecessary operating load is not applied to the inner wall of the shaft.
  • One end of a rope 23 is attached at a car-side rope end 20 disposed on the upper end of the guide rail 34b, and the other end of the rope 23 is connected through a car sheave 25, car suspension sheave 24, elevator fraction machine 35, counterweight suspension sheave 26, and counterweight sheave 27 to a counterweight-side rope end 29.
  • the elevator installation sfructure is designed so that not only the concentrated operating load is distributed over the pair of car guide rails 34a, 34b and the counterweight guide rails 32a, 32b, through the set of car suspension beams 45 and counterweight suspension beams 47, but also the car buffer footing 36 and the counterweiglit buffer footing 37 are depressed.
  • the basic supporting beams 38, 39 are firmly integrated with the car buffer footing 36 and counterweight buffer footing 37 for preventing the lifting up of the pre-assembled fraction machine base 50 and elevator fraction machine 35 due to the load generated during the operation of the car.
  • Fig. 3 shows an elevator installation structure of the present invention for mounting an elevator fraction machine at an extended pit floor at the lower portion of a shaft without a separate machine room.
  • Fig. 4 shows a schematic drawing of an elevator installation sfructure of the present invention for mounting an elevator traction machine at the extended pit floor.
  • the extended pit including an installation space 30 for installing the fraction machine 35 employing an induction motor and its installation sfructure forms a "d"-shaped shaft by extending from one side of the pit wall at the lower end of a shaft 10 to underneath the lowest level of a building basement.
  • the induction motor-driven fraction machine 35 with the pre-assembled fraction machine base 50 is installed on the long basic supporting beam 38 and the short basic supporting beam 39.
  • the fraction machine installation sfructure of the present invention comprising a long basic supporting beam 38, a short basic supporting beam 39, a car buffer footing 36 and a counterweight buffer footing 37 is arranged as shown in Fig.7.
  • the short basic supporting beam 39 is arranged parallel to the long basic supporting beam 38 and disposed with a right angle between the car buffer footing 36 and counterweight buffer footing 37.
  • the long basic supporting beam 38 is arranged with a right angle to abut against the car buffer footing 36 and counterweight buffer footing 37.
  • a car buffer 42 and a counterweight buffer 43 are centrally projected upwardly from top surfaces of the car buffer footing 36 and the counterweight buffer footing 37, respectively.
  • the basic supporting beams 38, 39 are firmly integrated with an end of each of the car buffer footing 36 and counterweight buffer footing 36.
  • the pair of car guide rails 34a, 34b and the pair of counterweight guide rails 32a, 32b are also jointed at their lower ends with the car buffer footing 36 and the counterweight buffer footing 37, respectively.
  • a bracket 41 is used to fix the pair of car guide rails 34a, 34b and counterweight guide rails 32a, 32b pe ⁇ endicularly to the car buffer footing 36 and counterweight buffer footing 37 respectively for pressing down the car buffer footing 36 and counterweight buffer footing 37.
  • Fig. 5 is a schematic drawing of the present invention illustrating an elevator sfructure and arrangement.
  • Fig. 6 is four-side views of a rope arrangement viewed at a clockwise direction at the center.
  • the guide rails 34a, 34b, 32a, 32b are supported at certain intervals along the length of the shaft by rail brackets (not shown in the drawing) on the shaft wall.
  • the rope 23 is arranged so that the operating load generated on the fraction machine during the operation of the elevator is distributed over the fraction machine installation sfructure and the counterweight guide rails 32a, 32b and the car guide rails 34a, 34b
  • the rope 23 is arranged so that the rope is connected at its one end to a car-side rope end 20 attached on top of the car guide rail 34b and passes around car sheaves 25 disposed below the bottom of the car, a car suspension sheave 24 attached under the car suspension beam 45, a pulley 49 of the fraction machine 35, a counterweight suspension sheave 26 attached above a counterweight suspension beam 47 and a counterweight sheave 27 disposed above the counterweight, in the order, and finally is connected at the other end to a counterweight-side rope end 29 arranged under the counterweight suspension beam 47.
  • the elevator installation sfructure has a capability to distribute a concentrated operating load being generated on the elevator fraction machine 35 during the elevator operation over each pair of car guide rails 34a, 34b and counterweight guide rails 32a, 32b through the car suspension beam 45 and counterweight suspension beam 47. Then, the distributed operating load is fransmitted pe ⁇ endicularly to the car buffer footing 36 and counterweight buffer footing 37 through each pair of the car guide rails 34a, 34b and counterweight guide rails 32a, 32b. Therefore, the car can be operated without the inner wall of the shaft being influenced by the weight of the car and the operating load as the weight and the load are tensmitted to the pit floor 31.
  • each of the car buffer footing 36 and the counterweight buffer footing 37 is fixed to the supporting beams 38, 39 arranged on the pit floor 31 of the fraction machine installation space 30, it is not necessary to use an excessive number of anchor bolts as in conventional elevator structures for fixing the foundation members of the elevator fraction machine to prevent the lifting incident.
  • a relatively less number of anchor bolts is used to fix the foundation members on the extended pit floor.
  • Fig. 7 is a top view of the present invention illustrating an arrangement of the foundation on the extended pit floor.
  • the foundation comprising a long basic supporting beam 38, a short basic supporting beam 39, a car buffer footing 36 and a counterweight buffer footing 37 is arranged on the extended pit floor 31 as shown in figure 7.
  • the members are bolted together by brackets or are welded with each other for permanent connection.
  • Both ends of the long basic supporting beam 38 are extended to sidewalls of the shaft for supporting. It may be pierced through the shaft walls or mounted on the wall by brackets (not shown). After the long basic supporting beam 38 and short basic supportmg beam 39 are arranged with a right angle to the car buffer footing 36 and counterweight buffer footing 37, the members are either bolted by brackets or welded for permanent connection. All members of the foundation are primarily anchor bolted on the extended pit floor. After the foundation is assembled, the pre-assembled fraction machine base 50 with the fraction machine 35 is installed on the foundation.
  • Fig. 8 is a schematic drawing illustrating a pre-assembled fraction machine base with an elevator fraction machine 35 employing an induction motor.
  • the members of the foundation including the long basic supporting beam 38, short basic supporting beam 39, the car buffer footing 36 and counterweight buffer footing 37 are firmly integrated and primarily anchor bolted on the extended pit floor.
  • the fraction machine base 50 is assembled with the machine 35 employing an induction motor before being installed on the short basic supporting beam 39 and the long basic supporting beam 38.
  • a lifting force is activated on the pre-assembled fraction machine base 50 including the fraction machine 35 through the winding rope 23 on the pulley of the fraction machine 35.
  • the lifting force is transmitted to the short basic supporting beam 39, long basic supporting beam 38, the traction machine 35 and the fraction machine base 50.
  • an anti-lifting device and vibration absorber 52 are installed between the pre-assembled fraction machine base 50 and the foundation.
  • the distributed operating load of the elevator acts to depress the car buffer footings 36 and counterweight buffer footings 37 through the pair of car guide rails 34a, 34b and counterweight guide rails 32a, 32b, hence resisting the lifting force.
  • the traction machine base 50 comprises an upper frame 56, outer frames 58.
  • the elevator installation sfructure of the present invention is capable not only to prevent the operating load for the car from being fransmitted to the inner wall of the shaft, but also to prevent a lifting of the elevator fraction machine.
  • the overall length of the guide rails 32a, 32b, 34a, 34b is the same as the height of elevator shaft, and the guide rails 32a, 32b, 34a, 34b are supported at certain intervals along the length of the shaft by rail brackets on the side wall of the shaft.
  • the guide rails should be properly designed and selected in suitable dimensions within a safe range so as to prevent buckling.
  • a standard guide rail is used for the design.
  • K with numerals (the weight of a guide rail per unit meter) is used for representing the dimensions of standard guide rails and has the properties of cross sectional area A, x-radius of gyration i x , y-radius of gyration i y and allowable sfress ⁇ a .
  • an allowable buckling sfress ⁇ k would be calculated.
  • the allowable buckling sfress ⁇ k is a value of allowable sfress ⁇ a being divided by a budding coefficient ⁇ .
  • ⁇ k ⁇ a / ⁇ (1)
  • the buckling coefficient ⁇ could be found in a Table showing a relation of the buckling coefficient ⁇ to slendemess ratio ⁇ for the tensile sfress of guide rails (for the values of buckling coefficient ⁇ , over 370 N/mm 2 of the tensile sfress of guide rails is recommended).
  • each guide rail receives the maximum operating load for in the consideration of a safety factor.
  • the operating load being distributed on the guide rails can be calculated for each point of car-side rope end 20, car suspension sheave 24, counterweight suspension sheave 26 and counterweight-side rope end 29.
  • the distributed load for each point will be as follows:
  • C 1 is a car weight
  • C p is the maximum capacity of the elevator
  • R ⁇ is a rope weight
  • S w is a sheave weight
  • C c is the counterweight
  • Each component of the reactions for each guide rail due to each of distributed load will be calculated for each point of the car-side rope end 20, car suspension sheave 24, counterweight suspension sheave 26 and counterweight-side rope end 29.
  • the overall reaction at each guide rail is the sum of each reaction component at each guide rail due to each of the distributed load.
  • the highest value of reaction is then selected as the maximum distributed operating load W m .
  • the buckling sfress ⁇ b expected on each guide rail is a value that the maximum distributed operating load W m multiples the bucking coefficient ⁇ , then, divided by the cross sectional area A of the guide rail.
  • ⁇ b ⁇ x W m / A (7) If the calculated value of buckling sfress ⁇ b is equal to or less than the allowable buckling sfress ⁇ k , the guide rail will not buckle during the operation of the elevator.
  • ⁇ b ⁇ ⁇ k (8)
  • a standard guide rail 13K is used for designing an elevator of maximum capacity of 15 passengers.
  • a standard guide rail 13K (the weight of which is 13Kg per unit meter) has properties of a cross sectional area A of 15.4cm 2 , x-radius of gyration i x of 1.966cm, y- radius of gyration i y of 1.81cm and allowable sfress ⁇ a of 2,400 Kg/cm 2 .
  • the weight of a car is 1,300 Kg
  • the maximum capacity of an elevator C p is 1,000 Kg
  • the counterweiglit C c is 1,800 Kg
  • the rope weight R ⁇ is 120 Kg
  • a sheave weight S w is 50 Kg.
  • the slendemess ratio ⁇ is calculated as the distance of rail bracket intervals D h being divided by y-radius of gyration i y .
  • an interval of rail bracket, D h is 250 cm.
  • the buckling coefficient ⁇ is
  • the allowable buckling sfress ⁇ k should be calculated.
  • the allowable buckling sfress ⁇ k is the value of allowable sfress ⁇ a being divided by the bucking coefficient ⁇ .
  • a standard guide rail 13K has a value of allowable sfress ⁇ a of 2,400 Kg/cm 2 .
  • the buckling sfress ⁇ b expected on each guide rail is a value that the expected maximum operating load W m times the bucking coefficient ⁇ being divided by the cross sectional area A of the guide rail.
  • ⁇ b ( ⁇ x W m ) / A- 631.0 Kg/cm 2 (7')
  • the calculated value of buckling sfress ⁇ b is less than the allowable buckling sfress ⁇ k .
  • buckling of the guide rail will not occur during the operation of the elevator.
  • a selection of a standard guide rail, 13K is sufficiently safe to be used for an elevator a maximum capacity of 15 passengers.
  • the present invention of an elevator installation sfructure is capable not only to distribute a concenfrated operating load generated on the elevator fraction machine over the elevator installation sfructure members through the pair of car and counterweight guide rails, but also to offset the lifting force acting on the elevator fraction machine and foundation.
  • the present invention relates to an elevator arrangement and elevator installation sfructure using an induction motor and has a capability not only to distribute the concenfrated load generated on the fraction machine during the elevator operation over the pair of car guide rails and counterweight guide rails through the car and counterweight suspension beam but also to transmit the distributed operating loads over the pair of car buffer footing 36 and counterweight buffer footing 37.

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  • Engineering & Computer Science (AREA)
  • Civil Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Cage And Drive Apparatuses For Elevators (AREA)

Abstract

La présente invention se rapporte à une structure d'installation d'ascenseur sans local de machinerie, dans laquelle une charge de fonctionnement concentrée sur une machine de traction au cours du fonctionnement de l'ascenseur est répartie sur les éléments de la structure d'installation de l'ascenseur par l'intermédiaire d'une paire de rails de guidage de la cabine d'ascenseur et du contrepoids et dans laquelle il est possible d'éviter de soulever la machine de traction ainsi que sa base. Dans la structure d'installation d'un ascenseur de la présente invention, la charge de fonctionnement générée au cours du fonctionnement de l'ascenseur est répartie sur des balanciers de suspension (45, 47) installés sur la partie supérieure d'un arbre, puis transmise à un socle tampon de cabine (36) et à un socle tampon de contrepoids (37) par l'intermédiaire de rails de guidage de la cabine (34a, 34b) et de rails de guidage du contrepoids (32a, 32b). Ces socles tampons (36, 37) sont solidement intégrés aux poutres de support de base (38, 39) sur lesquelles la machine est montée, ce qui permet d'éviter le levage de la machine de traction. En outre, il est possible d'utiliser un arbre en forme de 'd' et une machine de traction mettant en oeuvre un moteur à induction peu onéreux plutôt qu'un moteur synchrone onéreux, ce qui permet de fabriquer et d'offrir un ascenseur de type à entraînement en partie inférieure sans aucun local de machinerie séparé.
PCT/KR2001/000614 2000-04-15 2001-04-13 Structure d'installation d'un ascenseur sans local de machinerie, dotee d'une machine de traction montee dans une cuvette etendue WO2001079105A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU48904/01A AU4890401A (en) 2000-04-15 2001-04-13 Machine-room-less elevator installation structure with traction machine mounted in an extended pit

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR2000/19767 2000-04-15
KR1020000019767A KR20010096838A (ko) 2000-04-15 2000-04-15 기계실 없는 하부구동형 엘리베이터의 권상기 설치구조 및 그 방법

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WO2001079105A1 true WO2001079105A1 (fr) 2001-10-25

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PCT/KR2001/000614 WO2001079105A1 (fr) 2000-04-15 2001-04-13 Structure d'installation d'un ascenseur sans local de machinerie, dotee d'une machine de traction montee dans une cuvette etendue

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KR (1) KR20010096838A (fr)
AU (1) AU4890401A (fr)
WO (1) WO2001079105A1 (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004069717A1 (fr) * 2003-01-28 2004-08-19 Thyssen Elevator Capital Corp. Structure de support triangulaire destinee a un systeme d'ascenseur
US7000736B2 (en) * 2002-12-09 2006-02-21 Inventio Ag Elevator pit set assembly
JP2012184081A (ja) * 2011-03-07 2012-09-27 Hitachi Ltd エレベータ装置
CN103306922A (zh) * 2012-03-16 2013-09-18 刘亚奎 电梯对重发电装置
FR3094360A1 (fr) * 2019-03-26 2020-10-02 I.R.E.A. Installation d’ascenseur
CN112897294A (zh) * 2021-01-23 2021-06-04 北京汇鑫联合电梯工程股份有限公司 电梯机房操作平台
EP2807106B1 (fr) * 2012-01-27 2021-10-13 Kone Corporation Appareil de fixation d'une machine de levage d'un ascenseur et agencement de fixation

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101045465B1 (ko) * 2006-09-29 2011-06-30 가와무라 일렉트릭 가부시키가이샤 회로차단기
KR101045414B1 (ko) * 2006-11-10 2011-06-30 가와무라 일렉트릭 가부시키가이샤 회로 차단기
KR102302690B1 (ko) * 2021-03-17 2021-09-15 주식회사 민영승강기 화물엘리베이터의 카박스와 로프 연결장치

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11139730A (ja) * 1997-11-05 1999-05-25 Toshiba Corp エレベーター
JP2000038275A (ja) * 1998-07-24 2000-02-08 Mitsubishi Electric Corp エレベーター主索の吊設装置

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11139730A (ja) * 1997-11-05 1999-05-25 Toshiba Corp エレベーター
JP2000038275A (ja) * 1998-07-24 2000-02-08 Mitsubishi Electric Corp エレベーター主索の吊設装置

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7000736B2 (en) * 2002-12-09 2006-02-21 Inventio Ag Elevator pit set assembly
WO2004069717A1 (fr) * 2003-01-28 2004-08-19 Thyssen Elevator Capital Corp. Structure de support triangulaire destinee a un systeme d'ascenseur
US7261184B2 (en) 2003-01-28 2007-08-28 Thyssen Elevator Capital Corp. Elevator system and triangulated support structure for the same
JP2012184081A (ja) * 2011-03-07 2012-09-27 Hitachi Ltd エレベータ装置
EP2807106B1 (fr) * 2012-01-27 2021-10-13 Kone Corporation Appareil de fixation d'une machine de levage d'un ascenseur et agencement de fixation
CN103306922A (zh) * 2012-03-16 2013-09-18 刘亚奎 电梯对重发电装置
FR3094360A1 (fr) * 2019-03-26 2020-10-02 I.R.E.A. Installation d’ascenseur
CN112897294A (zh) * 2021-01-23 2021-06-04 北京汇鑫联合电梯工程股份有限公司 电梯机房操作平台

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KR20010096838A (ko) 2001-11-08
AU4890401A (en) 2001-10-30

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