EP1396456A1 - Aufzugsvorrichtung - Google Patents

Aufzugsvorrichtung Download PDF

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Publication number
EP1396456A1
EP1396456A1 EP01932256A EP01932256A EP1396456A1 EP 1396456 A1 EP1396456 A1 EP 1396456A1 EP 01932256 A EP01932256 A EP 01932256A EP 01932256 A EP01932256 A EP 01932256A EP 1396456 A1 EP1396456 A1 EP 1396456A1
Authority
EP
European Patent Office
Prior art keywords
counterweight
hoistway
sheaves
rope
elevator device
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
EP01932256A
Other languages
English (en)
French (fr)
Other versions
EP1396456A4 (de
EP1396456B1 (de
Inventor
Masami Mitsubishi Denki Kabushiki Kaisha Nomura
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 EP1396456A1 publication Critical patent/EP1396456A1/de
Publication of EP1396456A4 publication Critical patent/EP1396456A4/de
Application granted granted Critical
Publication of EP1396456B1 publication Critical patent/EP1396456B1/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
    • 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
    • B66B11/009—Roping with hoisting rope or cable operated by frictional engagement with a winding drum or sheave with separate traction and suspension ropes
    • 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
    • B66B11/0055—Arrangement of driving gear, e.g. location or support in the hoistway on the counterweight

Definitions

  • This invention relates to an elevator device having a main rope suspending a car and a counterweight and a drive rope for transmitting the drive force of a driving machine to the counterweight to cause the car and the counterweight to ascend and descend.
  • Fig. 12 is a diagram schematically showing the construction of a conventional elevator device similar, for example, to the one disclosed in EP0731052A1.
  • a hoistway 1 in the upper portion of a hoistway 1, there are arranged first and second rotatable car suspension sheaves 2 and 3.
  • a main rope 4 is wrapped around the first and second car suspension sheaves 2 and 3.
  • a car 5 and a counterweight 6 are suspended in the hoistway 1 by the main rope 4.
  • a 1:1 roping is adopted as the rope arrangement for the main rope 4.
  • an upper counterweight sheave 7 which is rotatable.
  • a lower counterweight sheave 8 which is rotatable.
  • an upper hoistway sheave 9 Arranged in the upper portion of the hoistway 1 is an upper hoistway sheave 9 that is rotatable.
  • a lower hoistway sheave 10 Arranged in the lower portion of the hoistway 1 is a lower hoistway sheave 10 that is rotatable.
  • a drive rope 11 is wrapped around the upper counterweight sheave 7, the upper hoistway sheave 9, the lower hoistway sheave 10, and the lower counterweight sheave 8.
  • one end portion (the upper end portion) of the drive rope 11 is connected to the top portion of the hoistway 1.
  • a tension weight 12 Suspended from the other end portion (the lower end portion) of the drive rope 11 is a tension weight 12 for imparting tension to the drive rope 11.
  • a 2:1 roping is adopted as the rope arrangement for the drive rope 11.
  • a driving machine (not shown) for causing the counterweight 6 to ascend and descend through the drive rope 11.
  • the lower hoistway sheave 10 is rotated by the driving machine, whereby the counterweight 6 is caused to ascend and descend through the drive rope 11. Due to this arrangement, the car 5 connected to the counterweight 6 through the main rope 4 ascends and descends in the hoistway 1 along a guide rail (not shown).
  • the upper counterweight sheave 7 is arranged on top of the counterweight 6, and the lower counterweight sheave 8 is arranged underneath the counterweight 6, so that the dimension of the counterweight 6 in the height direction becomes large, with the result that the dimension of the hoistway 1 in the height direction is increased.
  • This problem becomes conspicuous, in particular, when an emergency stop device is mounted on the counterweight 6.
  • This invention has been made with a view toward solving the above problem in the prior art. Therefore it is an object of this invention to provide an elevator device capable of restraining an increase in the dimension of the counterweight in the height direction and of effectively utilizing the space inside the building.
  • an elevator device comprising: a hoistway; a rotatable car suspension sheave arranged in the upper portion of the hoistway; a main rope wrapped around the car suspension sheave; a car and a counterweight suspended in the hoistway by the main rope; a plurality of rotatable counterweight sheaves mounted on the counterweight; a plurality of rotatable hoistway sheaves arranged in the upper portion and the lower portion of the hoistway; a drive rope wrapped around the counterweight sheaves and the hoistway sheaves; and a driving machine which causes the counterweight to ascend and descend through the drive rope by rotating at least one of the counterweight sheaves and the hoistway sheaves, wherein all the counterweight sheaves are arranged on one of the upper portion and the lower portion of the counterweight.
  • Fig. 1 is a schematic diagram showing the construction of an elevator device according to Embodiment 1 of this invention.
  • first and second rotatable car suspension sheaves are arranged in the upper portion of a hoistway 1.
  • a main rope 4 is wrapped around the first and second car suspension sheaves 2 and 3.
  • a car 5 and a counterweight 6 are suspended in the hoistway 1 by the main rope 4.
  • a 1:1 roping is adopted as the rope arrangement for the main rope 4.
  • First through fourth counterweight sheaves 21 through 24 are mounted above the counterweight 6.
  • the first through fourth counterweight sheaves 21 through 24 are arranged coaxially and are independently rotatable.
  • first and second upper hoistway sheaves 25 and 26 In the upper portion of the hoistway 1, there are arranged first and second upper hoistway sheaves 25 and 26.
  • the first and second upper hoistway sheaves 25 and 26 are arranged coaxially and are independently rotatable.
  • first and second lower hoistway sheaves 27 and 28 In the lower portion of the hoistway 1, there are arranged first and second lower hoistway sheaves 27 and 28.
  • the first and second lower hoistway sheaves 27 and 28 are arranged coaxially and are independently rotatable.
  • a drive rope 29 is wrapped around the first through fourth counterweight sheaves 21 through 24, the first and second upper hoistway sheaves 25 and 26, and the first and second lower hoistway sheaves 27 and 28.
  • One end portion (the upper end portion) of the drive rope 29 is connected to the top portion of the hoistway 1.
  • a tension weight 30 for imparting tension to the drive rope 29.
  • a 4:1 roping is adopted as the rope arrangement for the drive rope 29.
  • first upper hoistway sheave 25 Connected to the first upper hoistway sheave 25 is the rotation shaft of a driving machine 31 for causing the counterweight 6 to ascend and descend through the drive rope 29. That is, the first upper hoistway sheave 25 also serves as the drive sheave of the driving machine 31. Further, the first car suspension sheave 2 is provided with a brake device 32.
  • Fig. 2 is an explanatory diagram illustrating the rope arrangement of the drive rope 29 of Fig. 1, and Fig. 3 is a development of Fig. 2.
  • the drive rope 29 is wrapped around the sheaves in the following order: the first counterweight sheave 21, the first upper hoistway sheave 25, the second counterweight sheave 22, the second upper hoistway sheave 26, the first lower hoistway sheave 27, the third counterweight sheave 23, the second lower hoistway sheave 28, and the fourth counterweight sheave 24.
  • Fig. 4 is a side view showing an example of a specific layout of the elevator device of Fig. 1
  • Fig. 5 is a plan view showing the elevator device of Fig. 4
  • Fig. 4 is a side view as seen from the direction of an arrow V of Fig. 5.
  • Fig. 6 is a side view showing the positional relationship of the counterweight sheaves 21 through 24 and the hoistway sheaves 25 through 28.
  • the counterweight sheaves 21 through 24 and the hoistway sheaves 25 through 28 are arranged such that, in plan view, their rotation centers cross the center line 6c of the counterweight 6 obliquely. Further, in order to lessen the overlap of the car 5 and the driving machine 31 in plan view, a thin type hoist having a small axial dimension is used as the driving machine 31.
  • all the counterweight sheaves 21 through 24 and all the hoistway sheaves 25 through 28 are arranged such that their rotation shafts are superimposed one upon the other in plan view. That is, the upper hoistway sheaves 25 and 26 are arranged directly above the counterweight sheaves 21 through 24, and the lower hoistway sheaves 27 and 28 are arranged directly below the counterweight sheaves 21 through 24.
  • Fig. 5 there are provided in the hoistway 1 car guide rails 33 for guiding the ascent/descent of the car 5 and a counterweight guide rail 34 for guiding the ascent/descent of the counterweight 6.
  • the guide rails 33 and 34 are fixed in the hoistway 1 by a plurality of rail brackets 35.
  • each hoistway floor there is provided a hoistway door 36.
  • the car 5 is provided with a car door 37 opposed to the hoistway door 36.
  • all the counterweight sheaves 21 through 24 are arranged above the counterweight 6, so that it is possible to restrain an increase in the dimension of the counterweight 6 in the height direction, making it possible to diminish the height dimension of the hoistway 1, whereby it is possible to effectively utilize the space in the building.
  • first through fourth counterweight sheaves 21 through 24 are arranged coaxially, it is possible to simplify the construction and reduce the number of parts.
  • first and second upper hoistway sheaves 25 and 26 are arranged coaxially, and the first and second lower hoistway sheaves 27 and 28 are arranged coaxially, it is possible to further simplify the construction and reduce the number of parts.
  • the first car suspension sheave 2 is provided with the brake device 32, if the drive rope 29 should break, it is possible to prevent the car 5 from falling. Thus, it is possible to provide only one drive rope 29.
  • Fig. 7 is a plan view of an elevator device according to Embodiment 2 of this invention.
  • the counterweight sheaves 21 through 24 and the hoistway sheaves 25 through 28 are arranged such that, in plan view, their rotation shafts extend parallel to the center line 6c of the counterweight 6.
  • a vertical type hoist having a large axial dimension is used as a driving machine 38. otherwise, this embodiment is of the same construction as Embodiment 1.
  • Fig. 8 is an explanatory diagram illustrating the rope arrangement of the drive rope of an elevator device according to Embodiment 3 of this invention
  • Fig. 9 is a development of Fig. 8.
  • Embodiment 3 a 2:1 roping is adopted as the rope arrangement for the drive rope.
  • first and second counterweight sheaves 41 and 42 are mounted on top of the counterweight 6.
  • the first and second counterweight sheaves 41 and 42 are arranged coaxially and are independently rotatable.
  • a rotatable upper hoistway sheave 43 In the upper portion of the hoistway 1, there is arranged a rotatable lower hoistway sheave 44.
  • the drive rope 29 is wrapped around the first and second counterweight sheaves 41 and 42, the upper hoistway sheave 43, and the lower hoistway sheave 44.
  • One end portion (the upper end portion) of the drive rope 29 is connected to the top portion of the hoistway 1.
  • a tension weight 30 imparting tension to the drive rope 29 is suspended from the other end portion (the lower end portion) of the drive rope 29.
  • the drive rope 29 is successively wrapped in the following order: the first counterweight sheave 41, the upper hoistway sheave 43, the lower hoistway sheave 44, and the second counterweight sheave 42.
  • the first and second counterweight sheaves 41 and 42 are rotated in the same direction as each other.
  • the rotating speeds of the first and second counterweight sheaves 41 and 42 may slightly differ according to the expansion of the drive rope 29.
  • Fig. 10 is an explanatory diagram illustrating the rope arrangement of the drive rope of an elevator device according to Embodiment 4 of this invention
  • Fig. 11 is a development of Fig. 10.
  • This Embodiment 4 adopts a 3:1 roping as the rope arrangement for the drive rope.
  • first and second counterweight sheaves 51 and 52 are mounted on top of the counterweight 6.
  • the first and second counterweight sheaves 51 and 52 are arranged coaxially, and are independently rotatable.
  • first and second upper hoistway sheaves 53 and 54 In the upper portion of the hoistway 1, there are arranged first and second upper hoistway sheaves 53 and 54.
  • the first and second upper hoistway sheaves 53 and 54 are arranged coaxially, and are independently rotatable.
  • first and second lower hoistway sheaves 55 and 56 In the lower portion of the hoistway 1, there are arranged first and second lower hoistway sheaves 55 and 56.
  • the first and second lower hoistway sheaves 55 and 56 are arranged coaxially, and are independently rotatable.
  • the drive rope 29 is wrapped around the first and second counterweight sheaves 51 and 52, the first and second upper hoistway sheaves 53 and 54, and the first and second lower hoistway sheaves 55 and 56. Both end portions of the drive rope 29 are connected to the counterweight 6. A tension weight 30 imparting tension to the drive rope 29 is suspended from the first and second lower hoistway sheaves 55 and 56.
  • the drive rope 29 is successively wrapped around the sheaves in the following order: the first upper hoistway sheave 53, the first counterweight sheave 51, the second upper hoistway sheave 54, the first lower hoistway sheave 55, the second counterweight sheave 52, and the second lower hoistway sheave 56.
  • the driving machine is connected to the upper hoistway sheaves, it is also possible to connect the driving machine to other sheaves around which the drive rope is wrapped. That is, it is also possible to use other sheaves as the drive sheaves.
  • the driving machine may also be mounted in the lower portion of the hoistway or on the counterweight.
  • the counterweight sheaves are mounted only on top of the counterweight, it is also possible to mount them only on the lower side thereof.
  • counterweight sheaves are arranged coaxially, it is also possible to arrange a plurality of counterweight sheaves side by side on the upper or lower side of the counterweight, thereby restraining an increase in the height dimension of the counterweight.
  • a synthetic fiber rope consisting of a synthetic fiber such as an aramid fiber.
  • a synthetic fiber rope has a high friction coefficient and is superior in flexibility. Thus, it makes it possible to reduce the sheave diameter and achieve an overall reduction in size.
  • the rope arrangement of the drive rope is not restricted to those of the above examples; it is possible to employ an arbitrary N:1 roping (where N is a natural number not less than 2). That is, by making N large while restraining an increase in the height dimension of the counterweight, it is possible for the driving machine to be a small and inexpensive one, making it possible to effectively utilize the space in the building.
  • the number of counterweight sheaves is N when N is an even number, and N-1 when N is an odd number.
  • the number of upper hoistway sheaves is N/2 when N is an even number and N-1 when N is an odd number.
  • the number of lower hoistway sheaves is N/2 when N is an even number, and N-1 when N is an odd number.

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)
EP01932256A 2001-05-24 2001-05-24 Aufzugsvorrichtung Expired - Lifetime EP1396456B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2001/004374 WO2002094701A1 (fr) 2001-05-24 2001-05-24 Appareil de levage

Publications (3)

Publication Number Publication Date
EP1396456A1 true EP1396456A1 (de) 2004-03-10
EP1396456A4 EP1396456A4 (de) 2004-10-27
EP1396456B1 EP1396456B1 (de) 2008-01-09

Family

ID=11737345

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01932256A Expired - Lifetime EP1396456B1 (de) 2001-05-24 2001-05-24 Aufzugsvorrichtung

Country Status (5)

Country Link
EP (1) EP1396456B1 (de)
JP (1) JPWO2002094701A1 (de)
CN (1) CN1270957C (de)
DE (1) DE60132372T2 (de)
WO (1) WO2002094701A1 (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102229397A (zh) * 2011-06-09 2011-11-02 上海微频莱机电科技有限公司 塔筒升降机的升降装置
EP2492232A1 (de) * 2011-02-24 2012-08-29 Inventio AG Spannvorrichtung in einer Aufzugsanlage
EP3401265A3 (de) * 2017-05-12 2019-05-01 Otis Elevator Company Seilkletter-aufzugssystem

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1593640B1 (de) * 2003-02-13 2012-10-03 Mitsubishi Denki Kabushiki Kaisha Aufzugseinrichtung
EP2390221A1 (de) * 2003-02-19 2011-11-30 Mitsubishi Denki Kabushiki Kaisha Aufzug
KR100975689B1 (ko) 2006-06-01 2010-08-12 미쓰비시덴키 가부시키가이샤 엘리베이터 장치
CN1970422A (zh) * 2006-12-05 2007-05-30 孟繁贵 间接驱动曳引电梯
WO2016174298A1 (en) * 2015-04-27 2016-11-03 Kone Corporation Arrangement for adjusting the tautness of a traction member of an elevator

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0731052A1 (de) * 1995-03-04 1996-09-11 Dover Europe Aufzüge GmbH Aufzug
WO1997011020A1 (en) * 1995-09-21 1997-03-27 Kone Oy Traction sheave elevator without machine room
EP1031528A1 (de) * 1999-02-26 2000-08-30 Mitsubishi Denki Kabushiki Kaisha Aufzugsanlage
US20040035645A1 (en) * 2001-01-25 2004-02-26 Jaakko Orrmann Elevator

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3225811B2 (ja) * 1995-11-06 2001-11-05 三菱電機株式会社 エレベータ装置
JP2000063057A (ja) * 1998-06-08 2000-02-29 Meidensha Corp エレベータ

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0731052A1 (de) * 1995-03-04 1996-09-11 Dover Europe Aufzüge GmbH Aufzug
WO1997011020A1 (en) * 1995-09-21 1997-03-27 Kone Oy Traction sheave elevator without machine room
EP1031528A1 (de) * 1999-02-26 2000-08-30 Mitsubishi Denki Kabushiki Kaisha Aufzugsanlage
US20040035645A1 (en) * 2001-01-25 2004-02-26 Jaakko Orrmann Elevator

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO02094701A1 *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2492232A1 (de) * 2011-02-24 2012-08-29 Inventio AG Spannvorrichtung in einer Aufzugsanlage
CN102229397A (zh) * 2011-06-09 2011-11-02 上海微频莱机电科技有限公司 塔筒升降机的升降装置
EP3401265A3 (de) * 2017-05-12 2019-05-01 Otis Elevator Company Seilkletter-aufzugssystem

Also Published As

Publication number Publication date
EP1396456A4 (de) 2004-10-27
DE60132372T2 (de) 2008-12-24
EP1396456B1 (de) 2008-01-09
DE60132372D1 (de) 2008-02-21
JPWO2002094701A1 (ja) 2004-09-09
CN1440363A (zh) 2003-09-03
CN1270957C (zh) 2006-08-23
WO2002094701A1 (fr) 2002-11-28

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