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EP1710191A1 - Aufzugssystem - Google Patents

Aufzugssystem Download PDF

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Publication number
EP1710191A1
EP1710191A1 EP04706793A EP04706793A EP1710191A1 EP 1710191 A1 EP1710191 A1 EP 1710191A1 EP 04706793 A EP04706793 A EP 04706793A EP 04706793 A EP04706793 A EP 04706793A EP 1710191 A1 EP1710191 A1 EP 1710191A1
Authority
EP
European Patent Office
Prior art keywords
car
hoistway
working platform
elevator apparatus
cover
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
EP04706793A
Other languages
English (en)
French (fr)
Other versions
EP1710191A4 (de
EP1710191B1 (de
Inventor
Atsushi Mitsubishi Denki Kabushiki Kaisha MITSUI
Shiroh Mitsubishi Denki Kabushiki Kaisha IKEDA
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 EP1710191A1 publication Critical patent/EP1710191A1/de
Publication of EP1710191A4 publication Critical patent/EP1710191A4/de
Application granted granted Critical
Publication of EP1710191B1 publication Critical patent/EP1710191B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
    • B66B5/0043—Devices enhancing safety during maintenance
    • B66B5/005—Safety of maintenance personnel

Definitions

  • the present invention relates to an elevator apparatus in which hoistway equipment requiring maintenance and inspection work is provided at an upper portion in a hoistway.
  • a driving machine is provided in a machine room provided in a hoistway.
  • the machine room is provided directly above a counterweight in the hoistway.
  • the floor level of the machine room is provided at substantially the same height as the landing floor of the highest floor where a car can stop.
  • the range in which a counterweight is allowed to be raised and lowered is restricted by the machine room, and thus the vertical dimension of the counterweight must be made small as much as possible.
  • the horizontal sectional area of the counterweight must be increased, making it necessary to increase the horizontal sectional area of the hoistway as well.
  • the present invention has been made to overcome the above-described problem, and it is therefore an object of the present invention to provide an elevator apparatus capable of enhancing the ease of maintenance and inspection work while achieving saving of the space in the hoistway.
  • an elevator apparatus comprising: hoistway equipment arranged at an upper portion in a hoistway; a car that is raised and lowered in the hoistway; and a working platform arranged at the upper portion in the hoistway, wherein the working platform is arranged so that the working platform avoids interference with the car when the car moves to an uppermost movement position in the hoistway and that the working platform overlaps the car within a vertical projection plane.
  • Fig. 1 is a side view showing an elevator apparatus (machine room-less elevator) according to Embodiment 1 of the present invention
  • Fig. 2 is a sectional view taken along the line II-II of Fig. 1.
  • a hoistway 1 provided in a hoistway 1 are a pair of guide rails 2 and a pair of counterweight guide rails 3 (not shown in Fig. 1).
  • a car 4 is raised and lowered in the hoistway 1 as it is guided by the car guide rails 2.
  • a counterweight 5 is raised and lowered in the hoistway 1 as it is guided by the counterweight guide rails 3.
  • a counterweight 5 is arranged rearward of the car 4 with respect to the depth direction of the hoistway 1.
  • a car-side buffer (not shown) that receives the car 4
  • a counterweight-side buffer 6 that receives the counterweight 5.
  • a pair of support beams 7 are fixed to an upper portion (top portion) of the hoistway 1.
  • the support beams 7 are arranged in parallel in the width direction of the car 4 (the width direction of a landing entrance 8).
  • a machine platform 9 is bridged over the support beams 7.
  • the driving machine 10 has a driving machine main body 11 including a motor and a brake, and a drive sheave 12 that is rotated by the driving machine main body 11.
  • the rotation shaft of the drive sheave 12 is supported at its both ends. Further, the rotation shaft of the drive sheave 12 is in parallel to the width direction of the car 4 and extends horizontally.
  • the driving machine 10 is arranged so as to overlap the car 4 within the vertical projection plane. That is, the driving machine 10 is arranged directly above the car 4.
  • a rotatable deflector sheave 13 Supported to the machine platform 9 is a rotatable deflector sheave 13 as hoistway equipment.
  • the rotation shaft of the deflector sheave 13 is parallel to the rotation shaft of the drive sheave 12.
  • a plurality of main ropes 14 are wound around the drive sheave 12 and the deflector sheave 13.
  • Each main rope 14 has a first end portion 14a connected to an upper beam 4a of the car 4, and a second end portion 14b connected to an upper portion of the counterweight 5.
  • the car 4 and the counterweight 5 are suspended by the main rope 14 in the hoistway 1 by means of a 1:1 roping system.
  • a working platform 15 on which a worker stands while performing maintenance and inspection work on the driving machine 10.
  • the working platform 15 is arranged so as to avoid interference with the car 4 when the car 4 moves to the uppermost movement position in the hoistway 1 and to partially overlap the car 4 within the vertical projection plane.
  • the working platform 15 is arranged at a position where it does not collide with the upper beam 4a of the car 4 or equipment (door device and the like) on the top of the car 4 when the car 4 is lifted upward as the counterweight 5 collides with the counterweight-side buffer 6. Specifically, the working platform 15 is arranged at one rear side corner portion with respect to the front-to-rear direction of the hoistway 1.
  • the working platform 15 has a pair of fixing beams 16 fixed between the pair of support beams 7, a floor portion fixed on the fixing beams 16, and a handrail 18 fixed on the floor portion 17.
  • the fixing beams 16 are arranged in parallel in the depth direction of the car 4.
  • the floor portion 17 is provided with an escape hatch 17a, and a cover 19 for opening and closing the escape hatch 17a.
  • the floor portion 17 is provided with a cover detecting switch 19a that detects opening of the cover 19.
  • the operation of the driving machine 10 is controlled by a control device (control panel) 20.
  • the control device 20 is arranged in an upper or lower portion of the hoistway 1, for example.
  • a signal from the cover detecting switch 19a is input to the control device 20.
  • the control device 20 disables movement of the car 4 while the cover 19 is open.
  • the car 4 is moved to the upper portion of the hoistway 1, and then the worker moves from the top of the car 4 onto the working platform 15, whereby the worker can perform maintenance and inspection work on the driving machine 10 or deflector sheave 13.
  • the working platform 15 is arranged so as to avoid interference with the car 4 and the counterweight 5, whereby the vertical dimension of the counterweight 5 is not restricted by the working platform 15, making it possible to prevent the horizontal sectional area of the hoistway 1 from increasing due to the counterweight 5. That is, it is possible to realize saving of the space in the hoistway 1.
  • the floor portion 17 can be extended beyond the region of the car 4 within the vertical projection plane, whereby a large working space can be secured as compared with the case where maintenance and inspection work is performed on the top of the car 4, thereby making it possible to improve the ease of maintenance and inspection work.
  • the worker can move to the top of the car 4 through the escape hatch 17a, and then move into the interior of the car 4 through a rescue hatch provided in the ceiling of the car 4 or move to the top of an adjacent elevator car.
  • the cover detecting switch 19a is provided in the floor portion 17 and the movement of the car 4 is disabled while the cover 19 is open, whereby it is possible to more reliably prevent the car 4 from moving during egress through the escape hatch 17a.
  • Fig. 3 is a side view showing an elevator apparatus according to Embodiment 2 of the present invention
  • Fig. 4 is a sectional view taken along the line IV-IV of Fig. 3. While in Embodiment 1 the driving machine 10 is mounted on the machine platform 9, the driving machine 10 is fixed under the machine platform 9 in Embodiment 2.
  • a car-side return pulley 21 and a counterweight-side return pulley 22 are mounted to the machine platform 9 as hoistway equipment for reversing the direction of the main rope 14, which extends from the drive sheave 12, and introducing the main rope 14 to the car 4 and the counterweight 5, respectively.
  • the load exerted from the main rope 14 to the drive sheave 12 thus acts upwardly.
  • Embodiment 2 is of the same construction as Embodiment 1. Accordingly, the working platform 15 is arranged so as to avoid interference with the car 4 when the car 4 moves to the uppermost movement position in the hoistway 1 and to partially overlap the car 4 within the vertical projection plane.
  • Such a construction facilitates movement of the worker from the top of the car 4 onto the working platform 15 even in the case where the driving machine 10 and the return pulleys 21, 22 occupy a large area relative to the ceiling surface area of the car 4.
  • Fig. 3 is a horizontal sectional view of an elevator apparatus according to Embodiment 3 of the present invention.
  • the working platform 15 is provided with an openable/closable entrance door 23 that is opened during access to the top of the working platform 15. When closed, the entrance door 23 functions as a part of the handrail 18.
  • Embodiment 3 is of the same construction as Embodiment 1.
  • the car 4 does not move during access to and egress from the working platform 15 with the entrance door 23 open, whereby access to and egress from the working platform 15 can be made in a stable manner.
  • the hoistway equipment is not limited to those.
  • the working platform of the present invention may be provided in the hoistway when hoistway equipment, including a control panel, a speed governor, and return pulleys, is arranged at an upper portion in the hoistway and maintenance and inspection work is required for the hoistway equipment.
  • the present invention is applicable to an elevator apparatus employing another roping system, such as a 2:1 roping system.
  • the driving machine 10 is arranged such that the rotation shaft of the drive sheave 12 becomes horizontal, it is also possible to arrange the drive sheave such that the rotation shaft of the drive sheave becomes vertical or substantially vertical. It is to be noted, however, that the driving machine is preferably arranged such that a part that is likely to require maintenance and inspection work, such as the brake, is located on the working platform side. In other words, it is preferable that the working platform be arranged near a part that frequently requires maintenance and inspection work.

Landscapes

  • Maintenance And Inspection Apparatuses For Elevators (AREA)
  • Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
  • Cage And Drive Apparatuses For Elevators (AREA)
EP04706793A 2004-01-30 2004-01-30 Aufzugssystem Expired - Lifetime EP1710191B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2004/000894 WO2005073120A1 (ja) 2004-01-30 2004-01-30 エレベータ装置

Publications (3)

Publication Number Publication Date
EP1710191A1 true EP1710191A1 (de) 2006-10-11
EP1710191A4 EP1710191A4 (de) 2009-09-30
EP1710191B1 EP1710191B1 (de) 2011-10-26

Family

ID=34816553

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04706793A Expired - Lifetime EP1710191B1 (de) 2004-01-30 2004-01-30 Aufzugssystem

Country Status (4)

Country Link
EP (1) EP1710191B1 (de)
JP (1) JPWO2005073120A1 (de)
CN (1) CN100522782C (de)
WO (1) WO2005073120A1 (de)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000007923A1 (en) * 1998-08-06 2000-02-17 Otis Elevator Company A device and method for installing elevator equipment
EP1050505A1 (de) * 1999-05-07 2000-11-08 Inventio Ag Einrichtung zur Ausführung von Arbeiten in einem Aufzugsschacht
JP2001097649A (ja) * 1999-09-29 2001-04-10 Mitsubishi Electric Corp エレベーター装置
JP2001253658A (ja) * 2000-03-09 2001-09-18 Mitsubishi Electric Corp エレベータ
EP1346942A1 (de) * 2000-12-28 2003-09-24 Mitsubishi Denki Kabushiki Kaisha Oberes kabinengeländer für aufzug

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000238971A (ja) 1999-02-19 2000-09-05 Hitachi Building Systems Co Ltd エレベータ装置
JP2001048437A (ja) * 1999-08-17 2001-02-20 Hitachi Building Systems Co Ltd エレベータ
JP4091326B2 (ja) * 2002-03-27 2008-05-28 三菱電機ビルテクノサービス株式会社 エレベーター装置

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000007923A1 (en) * 1998-08-06 2000-02-17 Otis Elevator Company A device and method for installing elevator equipment
EP1050505A1 (de) * 1999-05-07 2000-11-08 Inventio Ag Einrichtung zur Ausführung von Arbeiten in einem Aufzugsschacht
JP2001097649A (ja) * 1999-09-29 2001-04-10 Mitsubishi Electric Corp エレベーター装置
JP2001253658A (ja) * 2000-03-09 2001-09-18 Mitsubishi Electric Corp エレベータ
EP1346942A1 (de) * 2000-12-28 2003-09-24 Mitsubishi Denki Kabushiki Kaisha Oberes kabinengeländer für aufzug

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2005073120A1 *

Also Published As

Publication number Publication date
WO2005073120A1 (ja) 2005-08-11
EP1710191A4 (de) 2009-09-30
EP1710191B1 (de) 2011-10-26
CN100522782C (zh) 2009-08-05
JPWO2005073120A1 (ja) 2007-08-23
CN1723167A (zh) 2006-01-18

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