EP1533265A1 - Aufzug - Google Patents

Aufzug Download PDF

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Publication number
EP1533265A1
EP1533265A1 EP02760729A EP02760729A EP1533265A1 EP 1533265 A1 EP1533265 A1 EP 1533265A1 EP 02760729 A EP02760729 A EP 02760729A EP 02760729 A EP02760729 A EP 02760729A EP 1533265 A1 EP1533265 A1 EP 1533265A1
Authority
EP
European Patent Office
Prior art keywords
ceiling portion
cab
main body
car
disposed
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.)
Withdrawn
Application number
EP02760729A
Other languages
English (en)
French (fr)
Other versions
EP1533265A4 (de
Inventor
Masanori Mitsubishi Denki Kabushiki Kaisha YASUE
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
Publication of EP1533265A1 publication Critical patent/EP1533265A1/de
Publication of EP1533265A4 publication Critical patent/EP1533265A4/de
Withdrawn legal-status Critical Current

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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
    • B66B11/02—Cages, i.e. cars
    • B66B11/0226—Constructional features, e.g. walls assembly, decorative panels, comfort equipment, thermal or sound insulation
    • B66B11/0246—Maintenance features
    • 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
    • B66B11/02—Cages, i.e. cars

Definitions

  • the present invention relates to an elevator apparatus in which maintenance inspection work on equipment installed inside a hoistway is performed from on top of a car.
  • an inspection panel is disposed on a car wall, and equipment inside the hoistway is inspected and maintained from inside the car by opening this inspection panel.
  • the present invention aims to solve the above problems and an object of the present invention is to provide an elevator apparatus enabling maintenance inspection work to be performed easily on equipment inside a hoistway from on top of a car, and also enabling overhead dimensions of the hoistway to be reduced while preventing deterioration of design inside a cab.
  • an elevator apparatus comprising a cab that is raised and lowered inside a hoistway, the cab having a cab main body in which a car entrance is disposed, and a ceiling portion disposed at an upper end portion of the cab main body, wherein the ceiling portion is raisable and lowerable between a normal operating position positioned at the upper end portion of the cab main body and a maintenance work position positioned below the normal operating position inside the cab main body.
  • Figure 1 is a perspective showing an elevator apparatus according to Embodiment 1 of the present invention
  • Figure 2 is a perspective showing a state of the elevator apparatus in Figure 1 during maintenance inspection work.
  • a pair of car guide rails 2 and a pair of counterweight guide rails 3 are installed inside a hoistway 1.
  • a car 4 is guided by the car guide rails 2 so as to be raised and lowered inside the hoistway 1.
  • a counterweight 5 is guided by the counterweight guide rails 3 so as to be raised and lowered inside the hoistway 1.
  • a supporting member 6 is fixed to an upper end portion of the counterweight guide rails 3.
  • a driving machine (a hoisting machine) 7 for hoisting the car 4 and the counterweight 5 are supported on the supporting member 6.
  • the driving machine 7 has: a driving machine main body 8 including a motor; and a drive sheave 9 rotated by the driving machine main body 8.
  • a plurality of main ropes 10 are wound around the drive sheave 9.
  • the car 4 and the counterweight 5 are suspended inside the hoistway 1 by the main ropes 10.
  • a pair of car suspension sheaves 11 around which the main ropes 10 are wound are disposed on a lower end portion of the car 4.
  • a counterweight suspension sheave 12 around which the main ropes 10 are wound is disposed on an upper end portion of the counterweight 5.
  • a first rope fastening portion 13 is secured to an upper end portion of one of the car guide rails 2.
  • a second rope fastening portion 14 is secured in a vicinity of an upper end portion of the counterweight guide rails 3.
  • the main ropes 10 have: a first end portion 10a connected to the first rope fastening portion 13; and a second end portion 10b connected to the second rope fastening portion 14.
  • the main ropes 10 are wound in sequence from the first end portion 10a, around the car suspension sheaves 11, the drive sheave 9, and the counterweight suspension sheave 12 to the second end portion 10b.
  • a control board 15 for controlling operation of the driving machine 7 is secured to an upper end portion of the other car guide rail 2.
  • the car 4 has: a car frame (not shown); and a cab 16 supported by the car frame.
  • the cab 16 has: a cab main body 17 in which a car entrance 17a is disposed; a ceiling portion 18 disposed at an upper end portion of the cab main body 17; car doors 19 for opening and closing the car entrance 17a; and a door apparatus 20 for supporting and driving the opening and closing of the car doors 19.
  • the cab main body 17 has : a car floor (a bottom surface); a front surface; a rear surface; a left side surface; and a right side surface.
  • the car entrance 17a is disposed in the front surface of the cab main body 17.
  • the ceiling portion 18 is raisable and lowerable between a normal operating position ( Figure 1) positioned at an upper end portion of the cab main body 17, and a maintenance work position ( Figure 2) positioned below the normal operating position inside the cab main body 17.
  • the ceiling portion 18 also serves as a work platform.
  • a height of the maintenance work position is adjustable to account for height of the maintenance personnel, height of the equipment being worked on (the driving machine 7, the control board 15, etc.), and the like.
  • FIG 3 is a partial cross section of the elevator apparatus in Figure 2
  • Figure 4 is a cross section showing a state of the elevator apparatus in Figure 3 during a loading operation.
  • the ceiling portion 18 is lowerable to a loading position positioned below the maintenance work position inside the cab main body 17. Movement between a landing and the ceiling portion 18 is made possible by lowering the ceiling portion 18 to the loading position.
  • a height of the loading position is also adjustable to a height facilitating movement of the maintenance personnel, loading and unloading of tools, etc.
  • FIG. 5 is an explanatory diagram showing a hoisting mechanism for the ceiling portion 18 in Figure 1.
  • Rotatable first to fourth cab main body pulleys 21 to 24 are disposed in each of four corners of an upper end portion of the cab main body 17.
  • Rotatable first to fourth ceiling portion pulleys 25 to 28 are disposed in each of four corners above the ceiling portion 18.
  • a wire rope 29 is wound around the first to fourth cab main body pulleys 21 to 24 and the first to fourth ceiling portion pulleys 25 to 28.
  • a winding apparatus 30 for winding the wire rope 29 is mounted on the ceiling portion 18.
  • a handle 31 for manually winding up and paying out the wire rope 29 is disposed on the winding apparatus 30.
  • First and second direction-changing pulleys 32a and 32b for leading the wire rope 29 to the winding apparatus 30 also are disposed on the ceiling portion 18.
  • the wire rope 29 is wound in sequence from one end portion, around the first direction-changing pulley 32a, the first ceiling portion pulley 25, the first cab main body pulley 21, the second cab main body pulley 22, the second ceiling portion pulley 26, the third ceiling portion pulley 27, the third cab main body pulley 23, the fourth cab main body pulley 24, the fourth ceiling portion pulley 28, and the second direction-changing pulley 32b, and both end portions are wound onto the winding apparatus 30.
  • Theceiling portion 18 is lowered by paying the wire rope 29 out from the winding apparatus 30, and is raised by winding the wire rope 29 onto the winding apparatus 30.
  • Protective members 33 for preventing inner wall surfaces of the cab main body 17 from being damaged by the raising and lowering of the ceiling portion 18 are disposed on edge surfaces of the ceiling portion 18 facing the inner wall surfaces.
  • a cloth such as a felt, etc., or rollers that are rolled along the inner wall surfaces of the cab main body 17, etc., can be used for the protective members 33, for example.
  • a plurality of items of electrical equipment such as lighting equipment, ventilation apparatuses, etc.
  • Electrical wiring for power supply and control (not shown) is connected to these items of electrical equipment.
  • a connector portion (not shown) that is connected when the ceiling portion 18 is positioned in the normal operating position, and disconnected when the ceiling portion 18 is positioned in the maintenance work position is disposed on the electrical wiring.
  • the connector portion may also be a combination of a plug and a socket, etc.
  • the ceiling portion 18 is positioned in the normal operating position.
  • maintenance personnel board the ceiling portion 18, and the ceiling portion 18 is lowered to the maintenance work position by operating the winding apparatus 30 manually. Then, the car 4 is moved to the uppermost floor.
  • the ceiling portion 18 is lowered to the loading position, and the loading operation is performed from the landing, then the ceiling portion 18 is raised to the maintenance work position.
  • This kind of loading operation may be performed at the landing of the uppermost floor, or it may also be performed at the landing of any other floor.
  • the ceiling portion 18 is lowerable to a loading position positioned below the maintenance work position inside the cab main body 17, the movement of maintenance personnel and the loading and unloading of tools between the landing and the top of the ceiling portion 18 can be performed easily, enabling workability to be improved.
  • the ceiling portion 18 is suspended by a wire rope 29, and is raised and lowered by a winding apparatus 30 that winds the wire rope 29, there is no influence on the design inside the cab 16, enabling the ceiling portion 18 to be raised and lowered by a simple construction, and also enabling it to be stopped and held in predetermined positions.
  • the height of the ceiling portion 18 can also be adjusted continuously to stop the ceiling portion 18 at a position suited to the work, enabling workability to be improved.
  • the ceiling portion 18 can be raised and lowered smoothly, and the inner wall surfaces of main body of the chamber 17 can be prevented from being damaged by contact with the ceiling portion 18.
  • the connector portion is disposed on the electrical wiring connected to the items of electrical equipment disposed on the ceiling portion 18, raising and lowering of the ceiling portion 18 is made possible without lengthening the electrical wiring, enabling the construction to be simplified. Moreover, because items of electrical equipment mounted to the ceiling portion 18 are not normally used while inspecting and maintaining equipment inside the hoistway 1 on top of the car 4, there is no problem if the connector portion is disconnected during the maintenance inspection work.
  • first to fourth cab main body pulleys 21 to 24 are disposed in the four corners of the upper end portion of the cab main body 17 and the first to fourth ceiling portion pulleys 25 to 28 are disposed in the four corners above the ceiling portion 18, the ceiling portion 18 can be raised and lowered stably.
  • FIG. 6 is an explanatory diagram showing a hoisting mechanism for a ceiling portion of an elevator apparatus according to Embodiment 2 of the present invention.
  • an electric winding apparatus 34 for winding a wire rope 29 is mounted above a door apparatus 20.
  • the winding apparatus 34 has an electric motor (not shown), and winding up and paying out of the wire rope 29 is performed by a driving force from the electric motor.
  • the wire rope 29 is wound in sequence from one end portion, around a second cab main body pulley 23, a third ceiling portion pulley 27, a second ceiling portion pulley 26, a second cab main body pulley 22, a first cab main body pulley 21, a first ceiling portion pulley 25, a fourth ceiling portion pulley 28, and a fourth cab main body pulley 24, and both end portions are wound onto the winding apparatus 34.
  • the rest of the construction is similar to that of Embodiment 1.
  • FIG. 7 is an explanatory diagram showing a hoisting mechanism for a ceiling portion of an elevator apparatus according to Embodiment 3 of the present invention.
  • a car 4 has: a cab 16; and a car frame 35 for supporting the cab 16.
  • the car frame 35 has: an upper beam 36 disposed horizontally above the cab 16; a lower beam (not shown) disposed below the cab 16 to carry the cab 16; and a pair of vertical frames (not shown) disposed between the upper beam 36 and the lower beam on both sides of the cab 16.
  • First and fourth upper beam pulleys 37 and 40 are mounted to one end portion of the upper beam 36.
  • Second and third upper beam pulleys 38 and 39 are mounted to the other end portion of the upper beam 36.
  • a wire rope 29 is wound in sequence from one end portion, around a first direction-changing pulley 32a, a first ceiling portion pulley 25, the first upper beam pulley 37, the second upper beam pulley 38, a second ceiling portion pulley 26, a third ceiling portion pulley 27, the third upper beam pulley 39, the fourth upper beam pulley 40, a fourth ceiling portion pulley 28, and a second direction-changing pulley 32b, and both end portions are wound onto a winding apparatus 30.
  • the rest of the construction is similar to that of Embodiment 1.
  • Figure 8 is an explanatory diagram showing a hoisting mechanism for a ceiling portion of an elevator apparatus according to Embodiment 4 of the present invention.
  • a winding apparatus 30 is mounted to an upper beam 36.
  • a ceiling portion 18 is suspended by first and second wire ropes 41 and 42.
  • the first wire rope 41 is wound in sequence from one end portion, around a second upper beam pulley 38, a second ceiling portion pulley 26, a third ceiling portion pulley 27, and a third upper beam pulley 39, and both end portions are wound onto a winding apparatus 30.
  • the second wire rope 42 is wound in sequence from one end portion, around a first upper beam pulley 37, a first ceiling portion pulley 25, a fourth ceiling portion pulley 28, and a fourth upper beam pulley 40, and both end portions are wound onto the winding apparatus 30.
  • the ceiling portion 18 is lowered by simultaneously paying out the first and second wire ropes 41 and 42 from the winding apparatus 30, and is raised by simultaneously winding the first and second wire ropes 41 and 42 onto the winding apparatus 30.
  • the rest of the construction is similar to that of Embodiment 1.
  • the ceiling portion is suspended by a wire rope, but the ceiling portion may also be suspended by a belt or chain, for example.
  • the ceiling portion is raised and lowered manually or electrically, but the ceiling portion may also be raised and lowered by a hydraulic actuator, for example.
  • a locking means may also be disposed between the cab main body and the ceiling portion to engage the ceiling portion mechanically and prevent the ceiling portion from dropping when the ceiling portion is in the normal operating position.
  • the electric drive source can be easily used by disposing a rechargeable battery on the ceiling portion.
  • the battery is charged when the ceiling portion is in the normal operating position, and the ceiling portion is raised and lowered using electric power from the charged battery.
  • the ceiling portion as a whole is raised and lowered, but a portion only of the ceiling portion may also be made raisable and lowerable.

Landscapes

  • Engineering & Computer Science (AREA)
  • Civil Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Cage And Drive Apparatuses For Elevators (AREA)
  • Maintenance And Inspection Apparatuses For Elevators (AREA)
  • Types And Forms Of Lifts (AREA)
EP02760729A 2002-08-23 2002-08-28 Aufzug Withdrawn EP1533265A4 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2002/008518 WO2004020322A1 (ja) 2002-08-23 2002-08-23 エレベータ装置

Publications (2)

Publication Number Publication Date
EP1533265A1 true EP1533265A1 (de) 2005-05-25
EP1533265A4 EP1533265A4 (de) 2011-03-30

Family

ID=31972249

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02760729A Withdrawn EP1533265A4 (de) 2002-08-23 2002-08-28 Aufzug

Country Status (5)

Country Link
EP (1) EP1533265A4 (de)
JP (1) JP4353898B2 (de)
KR (1) KR100572349B1 (de)
CN (1) CN1323921C (de)
WO (1) WO2004020322A1 (de)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1760026A1 (de) * 2005-08-30 2007-03-07 Inventio Ag Verfahren zur Durchführung von Wartungs- und Inspektionsarbeiten an einer Aufzugsanlage
EP1760029A1 (de) * 2005-08-30 2007-03-07 Inventio Ag Aufzugskabine mit Wartungsplattform und Verfahren zur Wartung einer Aufzugsanlage
WO2008074168A1 (de) * 2006-12-20 2008-06-26 H. Henseler Ag Liftkabine für reduzierte liftschachtköpfe
CN1923659B (zh) * 2005-08-30 2010-11-03 因温特奥股份公司 用于在电梯设备中实施维护和检查操作的方法
US8875845B2 (en) * 2005-10-21 2014-11-04 Alimak Ab Safety arrangement for a lift car in a lift
EP3560878A1 (de) * 2018-04-27 2019-10-30 Otis Elevator Company Aufzugsanzeigesysteme
US10589964B2 (en) 2016-10-17 2020-03-17 Otis Elevator Company Elevator car, elevator system and method of checking, maintaining and/or repairing an elevator system
EP3828119A1 (de) * 2019-11-26 2021-06-02 Otis Elevator Company Aufzugskabine mit mechanischer unterstützung für eine arbeitsplattform
US11292696B2 (en) 2018-07-30 2022-04-05 Otis Elevator Company Elevator car
US11427441B2 (en) 2020-07-23 2022-08-30 Otis Elevator Company Elevator car with foldable working platform
US11945684B2 (en) 2022-07-04 2024-04-02 Otis Elevator Company Elevator car with foldable working platform

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TW200710012A (en) * 2005-06-03 2007-03-16 Inventio Ag Lift cage with lowerable cage roof
CH699369B1 (de) * 2006-12-20 2010-02-26 Henseler H Ag Liftkabine mit Wartungsfenster.
CH700501B1 (de) * 2007-09-17 2010-09-15 Henseler H Ag Liftkabine für reduzierte Liftschachtköpfe.
CN107835781B (zh) * 2015-07-15 2019-06-25 三菱电机株式会社 电梯装置
CN109476456B (zh) * 2016-07-15 2022-09-09 通力股份公司 电梯装置和电梯
WO2019043949A1 (ja) * 2017-09-04 2019-03-07 三菱電機株式会社 エレベータのかご天井およびエレベータかごの製造方法
EP3546412B1 (de) 2018-03-27 2024-09-18 Otis Elevator Company Aufzugkabinendeckenzugangssystem

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06278973A (ja) * 1993-03-30 1994-10-04 Mitsubishi Electric Corp エレベータのかご室天井装置
JPH09263372A (ja) * 1996-03-28 1997-10-07 Mitsubishi Denki Bill Techno Service Kk エレベータかご天井昇降装置
DE10104351A1 (de) * 2001-02-01 2002-08-22 Ingenieurgesellschaft Foerder Aufzug mit auf der Aufzugskabine mitfahrender Antriebseinheit und Steuereinheit

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06340386A (ja) * 1993-05-31 1994-12-13 Mitsubishi Denki Bill Techno Service Kk エレベータかご天井救出口蓋
US6691833B1 (en) * 1999-02-05 2004-02-17 Inventio Ag Elevator without a machine room
JP2002020062A (ja) * 2000-07-07 2002-01-23 Mitsubishi Electric Corp エレベーターかご室装置

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06278973A (ja) * 1993-03-30 1994-10-04 Mitsubishi Electric Corp エレベータのかご室天井装置
JPH09263372A (ja) * 1996-03-28 1997-10-07 Mitsubishi Denki Bill Techno Service Kk エレベータかご天井昇降装置
DE10104351A1 (de) * 2001-02-01 2002-08-22 Ingenieurgesellschaft Foerder Aufzug mit auf der Aufzugskabine mitfahrender Antriebseinheit und Steuereinheit

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2004020322A1 *

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1760026A1 (de) * 2005-08-30 2007-03-07 Inventio Ag Verfahren zur Durchführung von Wartungs- und Inspektionsarbeiten an einer Aufzugsanlage
EP1760029A1 (de) * 2005-08-30 2007-03-07 Inventio Ag Aufzugskabine mit Wartungsplattform und Verfahren zur Wartung einer Aufzugsanlage
CN1923659B (zh) * 2005-08-30 2010-11-03 因温特奥股份公司 用于在电梯设备中实施维护和检查操作的方法
US8875845B2 (en) * 2005-10-21 2014-11-04 Alimak Ab Safety arrangement for a lift car in a lift
WO2008074168A1 (de) * 2006-12-20 2008-06-26 H. Henseler Ag Liftkabine für reduzierte liftschachtköpfe
US10589964B2 (en) 2016-10-17 2020-03-17 Otis Elevator Company Elevator car, elevator system and method of checking, maintaining and/or repairing an elevator system
EP3560878A1 (de) * 2018-04-27 2019-10-30 Otis Elevator Company Aufzugsanzeigesysteme
US11498811B2 (en) 2018-04-27 2022-11-15 Otis Elevator Company Elevator display systems
US11292696B2 (en) 2018-07-30 2022-04-05 Otis Elevator Company Elevator car
EP3828119A1 (de) * 2019-11-26 2021-06-02 Otis Elevator Company Aufzugskabine mit mechanischer unterstützung für eine arbeitsplattform
US11524874B2 (en) 2019-11-26 2022-12-13 Otis Elevator Company Elevator car with mechanical assistance for working platform
US11427441B2 (en) 2020-07-23 2022-08-30 Otis Elevator Company Elevator car with foldable working platform
US11945684B2 (en) 2022-07-04 2024-04-02 Otis Elevator Company Elevator car with foldable working platform

Also Published As

Publication number Publication date
KR100572349B1 (ko) 2006-04-18
CN1323921C (zh) 2007-07-04
JP4353898B2 (ja) 2009-10-28
KR20040039399A (ko) 2004-05-10
EP1533265A4 (de) 2011-03-30
WO2004020322A8 (ja) 2004-07-29
JPWO2004020322A1 (ja) 2005-12-15
CN1568280A (zh) 2005-01-19
WO2004020322A1 (ja) 2004-03-11

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