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EP1564177A1 - Aufzugseinrichtung - Google Patents

Aufzugseinrichtung Download PDF

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Publication number
EP1564177A1
EP1564177A1 EP02808157A EP02808157A EP1564177A1 EP 1564177 A1 EP1564177 A1 EP 1564177A1 EP 02808157 A EP02808157 A EP 02808157A EP 02808157 A EP02808157 A EP 02808157A EP 1564177 A1 EP1564177 A1 EP 1564177A1
Authority
EP
European Patent Office
Prior art keywords
car
lower car
hoistway
counterweight
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.)
Granted
Application number
EP02808157A
Other languages
English (en)
French (fr)
Other versions
EP1564177B1 (de
EP1564177A4 (de
Inventor
Koji c/o Mitsubishi Denki Kabushiki Kaisha OGAWA
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=32321483&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP1564177(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Publication of EP1564177A1 publication Critical patent/EP1564177A1/de
Publication of EP1564177A4 publication Critical patent/EP1564177A4/de
Application granted granted Critical
Publication of EP1564177B1 publication Critical patent/EP1564177B1/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
    • B66B7/00—Other common features of elevators
    • B66B7/06—Arrangements of ropes or cables
    • 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
    • B66B11/0095—Roping with hoisting rope or cable operated by frictional engagement with a winding drum or sheave where multiple cars drive in the same hoist way
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B9/00—Kinds or types of lifts in, or associated with, buildings or other structures

Definitions

  • the present invention relates to a single-shaft multi-car elevator apparatus in which a plurality of cars are raised and lowered inside a shared hoistway.
  • An elevator apparatus is disclosed in Japanese Patent Laid-Open No. SHO 59-133188, for example, in which two cars are disposed vertically inside a shared hoistway.
  • this elevator apparatus since two cars and two counterweights are suspended by two-to-one (2: 1) roping, the construction of the apparatus is complex. Furthermore, since the rope speed and the rotational speed of the sheaves are twice those of one-to-one (1:1) roping, noise is increased, making it impossible to operate the cars at high speed.
  • the present invention aims to solve the above problems and an object of the present invention is to provide an elevator apparatus enabling an upper car and a first counterweight, and a lower car and a second counterweight, respectively, to be suspended by one-to-one (1:1) roping, thereby enabling noise to be reduced and the upper car and the lower car to be operated at high speed.
  • an elevator apparatus including: a first driving machine having a first drive sheave disposed in an upper portion of a hoistway; an upper car and a first counterweight raised and lowered inside the hoistway by a driving force from the first driving machine; a first main rope wound around the first drive sheave, the first main rope having a first car end portion connected to the upper car, and a first counterweight end portion connected to the first counterweight; a second driving machine having a second drive sheave disposed in an upper portion of the hoistway; a lower car having first and second lower car suspension portions, the lower car being disposed below the upper car and raised and lowered inside the hoistway by a driving force from the second driving machine; a second counterweight raised and lowered inside the hoistway by a driving force from the second driving machine; a second main rope wound around the second drive sheave, the second main rope having a second car end portion connected to the first lower car suspension portion, and
  • Figure 1 is a front elevation showing an elevator apparatus according to Embodiment 1 of the present invention
  • Figure 2 is a side elevation showing the elevator apparatus in Figure 1
  • Figure 3 is a plan showing the elevator apparatus in Figure 1
  • Figure 4 is a front elevation showing an upper portion of a hoistway from Figure 1 enlarged
  • Figure 5 is a side elevation showing the upper portion of the hoistway from Figure 1 enlarged.
  • Figure 4 is a view in the direction of arrow IV in Figure 3
  • Figure 5 is a view in the direction of arrow V in Figure 3.
  • a first driving machine 3 having a first drive sheave 2 is disposed in an upper portion of a hoistway 1.
  • An upper car 4 and a first counterweight 5 are raised and lowered inside the hoistway 1 by a driving force from the first driving machine 3.
  • a plurality of first main ropes 6 (only one is shown in the figures) for suspending the upper car 4 and the first counterweight 5 inside the hoistway 1 are wound around the first drive sheave 2.
  • the first main ropes 6 have: first car end portions 6a connected to an upper portion of the upper car 4; and first counterweight end portions 6b connected to an upper portion of the first counterweight 5.
  • the upper car 4 is suspended by the first main ropes 6 at its center of gravity.
  • the first counterweight 5 is also suspended by the first main ropes 6 at its center of gravity.
  • the upper car 4 and the first counterweight 5 are suspended by a one-to-one (1:1) roping method.
  • the first driving machine 3 is disposed directly above the upper car 4 such that an axis of rotation of the first drive sheave 2 extends horizontally.
  • a first deflection sheave 7 around which the first main ropes 6 are wound is disposed in an upper portion of the hoistway 1. The first deflection sheave 7 directs the first main ropes 6 from the first drive sheave 2 toward the first counterweight 5.
  • the first deflection sheave 7 is disposed such that that an axis of rotation thereof extends parallel to the axis of rotation of the first drive sheave 2.
  • the first main ropes 6 are wound around the first drive sheave 2 and the first deflection sheave 7 using a full winding method.
  • a second driving machine 9 having a second drive sheave 8 is disposed in an upper portion of the hoistway 1.
  • a lower car 10 and a second counterweight 11 are raised and lowered inside the hoistway 1 by a driving force from the second driving machine 9.
  • the lower car 10 is disposed below the upper car 4 inside the hoistway 1.
  • the first and second counterweights 5 and 11 are disposed behind the upper car 4 and the lower car 10 inside the hoistway 1 so as to line up in a direction of frontage of the upper car 4 and the lower car 10.
  • First and second lower car suspension portions 10a and 10b are disposed on first and second side portions of an upper end of the lower car 10.
  • the first and second lower car suspension portions 10a and 10b are symmetrically disposed on opposite sides of the center of gravity of the lower car 10 from each other.
  • a plurality of second main ropes 12 (only one is shown in the figures) and a plurality of third main ropes 13 (only one is shown in the figures) for suspending the lower car 10 and the second counterweight 11 inside the hoistway 1 are wound around the second drive sheave 8.
  • the second main ropes 12 have: second car end portions 12a connected to the first lower car suspension portion 10a; and second counterweight end portions 12b connected to the second counterweight 11.
  • the third main ropes 13 have: third car end portions 13a connected to the second lower car suspension portion 10b; and third counterweight end portions 13b connected to the second counterweight 11.
  • the lower car 10 is suspended by the second and third main ropes 12 and 13 at its center of gravity.
  • the second counterweight 11 is also suspended by the second and third main ropes 12 and 13 at its center of gravity.
  • the lower car 10 and the second counterweight 11 are suspended by a one-to-one (1:1) roping method.
  • a second deflection sheave 14 around which the second and third main ropes 12 and 13 are wound is disposed in an upper portion of the hoistway 1.
  • the second and third main ropes 12 and 13 are wound around the second deflection sheave 14 using a full winding method.
  • First and second guide pulleys 15 and 16 are also disposed in an upper portion of the hoistway 1.
  • the first guide pulley 15 is disposed directly above the first lower car suspension portion 10a and directs the second main ropes 12 from the second drive sheave 8 toward the first lower car suspension portion 10a.
  • the second guide pulley 16 is disposed directly above the second lower car suspension portion 10b and directs the third main ropes 13 toward the second lower car suspension portion 10b.
  • the second and third main ropes 12 and 13 pass along first and second sides of the upper car 4 so as not to interfere with the upper car 4 and are connected to the lower car suspension portions 10a and 10b.
  • first and second direction-changing pulleys 17 and 18 for directing the third main ropes 13 from the second drive sheave 8 toward the second guide pulley 16 are also disposed in an upper portion of the hoistway 1.
  • Axes of rotation of the second drive sheave 8, the second deflection sheave 14, and the first guide pulley 15 extend horizontally parallel to each other.
  • An axis of rotation of the second guide pulley 16 extends horizontally parallel to the direction of frontage of the upper car 4 and the lower car 10.
  • Axes of rotation of the first and second direction-changing pulleys 17 and 18 extend vertically.
  • a pair of car guide rails 19 for guiding raising and lowering of the upper car 4 and the lower car 10 a pair of first counterweight guide rails 20 for guiding raising and lowering of the first counterweight 5, and a pair of second counterweight guide rails 21 for guiding raising and lowering of the second counterweight 11 are installed inside the hoistway 1.
  • the car guide rails 19 are disposed such that a straight line connecting them extends parallel to a direction of frontage of the upper car 4 and the lower car 10 and passes through the centers of gravity of the upper car 4 and the lower car 10 in a vertical plane of projection. Furthermore, the first lower car suspension portion 10a is disposed closer to a front surface of the lower car 10 than the car guide rails 19 in a vertical plane of projection, and the second lower car suspension portion 10b is disposed closer to a rear surface of the lower car 10 than the car guide rails 19.
  • the upper car 4 and the lower car 10 can each be suspended by one-to-one (1:1) roping.
  • noise from the first and second driving machines 3 and 9 is reduced, enabling the upper car 4 and the lower car 10 to be operated at high speed.
  • first and second lower car suspension portions 10a and 10b are symmetrically disposed on opposite sides of the center of gravity of the lower car 10 from each other, the upper car 4 and the lower car 10 can each be suspended at positions of their centers of gravity, thereby preventing eccentric loads from acting on the upper car 4 and the lower car 10, and enabling the upper car 4 and the lower car 10 to be operated stably.
  • the second and third main ropes 12 and 13 can be directed to the first and second lower car suspension portions 10a and 10b by a simple construction, enabling the upper car 4 and the lower car 10 to be operated stably.
  • direction-changing pulleys 17 and 18 are used to direct the third main ropes 13 from the second drive sheave 8 to toward the second guide pulley 16, the third main ropes 13 can be prevented from interfering with the first driving machine 3 by a simple construction.
  • first and second counterweights 5 and 11 are disposed behind the upper car 4 and the lower car 10 inside the hoistway 1 so as to line up in a direction of frontage of the upper car 4 and the lower car 10, space inside the hoistway 1 can be used effectively, enabling frontage dimensions of the hoistway 1 to be reduced.
  • Figure 6 is a plan showing an elevator apparatus according to Embodiment 2 of the present invention.
  • the first and second counterweights 5 and 11 are disposed behind the upper car 4 and the lower car 10, but as shown in Figure 6, the first and second counterweights 5 and 11 may also be disposed beside the upper car 4 and the lower car 10 inside the hoistway 1.
  • first and second counterweights 5 and 11 are disposed beside the upper car 4 and the lower car 10 inside the hoistway 1 so as to line up in a depth direction of the upper car 4 and the lower car 10, space inside the hoistway 1 can be used effectively, enabling depth dimensions of the hoistway 1 to be reduced.
  • Figure 7 is a plan showing an elevator apparatus according to Embodiment 3 of the present invention.
  • the car guide rails 19 are disposed at an intermediate portion in a depth direction of the upper car 4 and the lower car 10, but because eccentric loads will not act on the car guide rails 19 if the upper car 4 and the lower car 10 are suspended at their center of gravity, the position of installation of the car guide rails is not limited to that of Figure 3.
  • the lower car the suspension portions 10a and 10b may also be disposed at an intermediate portion in the depth direction of the lower car 10, and the car guide rails 19 disposed in a vicinity of corner portions in symmetrical positions relative to the centers of gravity of the upper car 4 and the lower car 10.
  • the guide pulleys 15 and the direction-changing pulleys 18 in Figure 3 can be omitted, enabling the layout to be simplified.
  • the driving machines 3 and 9, the deflection sheaves 7 and 14, the guide pulleys 15 and 16, and the direction-changing pulleys 17 and 18 may also be disposed in a machine room positioned in an upper portion of the hoistway 1, or they may also be disposed in an upper portion inside the hoistway 1.
  • the present invention can be applied both to elevator apparatuses having a machine room, and to machine-roomless elevators.
  • the driving machines 3 and 9 are disposed such that the axes of rotation of the drive sheaves 2 and 8 extend horizontally, but driving machines may also be disposed such that axes of rotation of drive sheaves extend vertically.
  • one or two direction-changing pulleys are used, but three or more may also be used in order to avoid interference between the third main ropes and other equipment in the upper portion of the hoistway.
  • the main ropes are wound around the drive sheaves and the deflection sheaves by a full winding method, but a half winding method may also be used provided that sufficient traction can be provided.
  • the deflection sheaves may also be omitted provided that sufficient traction can be provided.

Landscapes

  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Civil Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Automation & Control Theory (AREA)
  • Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
EP02808157A 2002-11-18 2002-11-18 Aufzugseinrichtung Expired - Lifetime EP1564177B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2002/011998 WO2004046009A1 (ja) 2002-11-18 2002-11-18 エレベータ装置

Publications (3)

Publication Number Publication Date
EP1564177A1 true EP1564177A1 (de) 2005-08-17
EP1564177A4 EP1564177A4 (de) 2011-06-15
EP1564177B1 EP1564177B1 (de) 2012-11-14

Family

ID=32321483

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02808157A Expired - Lifetime EP1564177B1 (de) 2002-11-18 2002-11-18 Aufzugseinrichtung

Country Status (5)

Country Link
EP (1) EP1564177B1 (de)
JP (1) JP4292157B2 (de)
KR (1) KR20050002816A (de)
CN (1) CN100344521C (de)
WO (1) WO2004046009A1 (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7762376B2 (en) * 2006-10-31 2010-07-27 Inventio Ag Elevator with two elevator cars which are disposed one above the other in a shaft
CN102414111A (zh) * 2009-04-29 2012-04-11 奥的斯电梯公司 在单个井道内包括多个轿厢的电梯系统
US8430210B2 (en) 2011-01-19 2013-04-30 Smart Lifts, Llc System having multiple cabs in an elevator shaft
US8925689B2 (en) 2011-01-19 2015-01-06 Smart Lifts, Llc System having a plurality of elevator cabs and counterweights that move independently in different sections of a hoistway

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4752268B2 (ja) * 2004-12-27 2011-08-17 三菱電機株式会社 エレベータ装置
EP1700809B1 (de) * 2005-03-12 2010-04-28 ThyssenKrupp Elevator AG Aufzuganlage
KR100961038B1 (ko) * 2006-05-01 2010-06-01 미쓰비시덴키 가부시키가이샤 엘리베이터 장치
CN102491134A (zh) * 2011-12-26 2012-06-13 日立电梯（中国）有限公司 电梯运行控制方法及电梯系统
CN106276511B (zh) * 2016-08-20 2018-06-29 刘小光 套筒式单双层可切换电梯系统
CN109704178A (zh) * 2018-12-13 2019-05-03 中国矿业大学 一种相邻井道间的单容器摩擦提升系统

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1896776A (en) * 1928-02-17 1933-02-07 Westinghouse Electric & Mfg Co Multiple elevator system
US1911834A (en) * 1931-02-26 1933-05-30 Otis Elevator Co Elevator system
JP2000351556A (ja) * 1999-06-14 2000-12-19 Mitsubishi Electric Corp エレベータ

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58220075A (ja) * 1982-06-16 1983-12-21 三菱電機株式会社 エレベ−タ装置
JPS59133188A (ja) * 1983-01-20 1984-07-31 株式会社東芝 エレベ−タ
JPH02106570A (ja) * 1988-10-12 1990-04-18 Mitsubishi Electric Corp エレベータ
JPH07187525A (ja) * 1993-11-18 1995-07-25 Masami Sakita 複数ばこエレベータシステム
US5419414A (en) * 1993-11-18 1995-05-30 Sakita; Masami Elevator system with multiple cars in the same hoistway

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1896776A (en) * 1928-02-17 1933-02-07 Westinghouse Electric & Mfg Co Multiple elevator system
US1911834A (en) * 1931-02-26 1933-05-30 Otis Elevator Co Elevator system
JP2000351556A (ja) * 1999-06-14 2000-12-19 Mitsubishi Electric Corp エレベータ

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2004046009A1 *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7762376B2 (en) * 2006-10-31 2010-07-27 Inventio Ag Elevator with two elevator cars which are disposed one above the other in a shaft
CN102414111A (zh) * 2009-04-29 2012-04-11 奥的斯电梯公司 在单个井道内包括多个轿厢的电梯系统
US8430210B2 (en) 2011-01-19 2013-04-30 Smart Lifts, Llc System having multiple cabs in an elevator shaft
US8925689B2 (en) 2011-01-19 2015-01-06 Smart Lifts, Llc System having a plurality of elevator cabs and counterweights that move independently in different sections of a hoistway

Also Published As

Publication number Publication date
JPWO2004046009A1 (ja) 2006-03-16
WO2004046009A1 (ja) 2004-06-03
KR20050002816A (ko) 2005-01-10
CN1615265A (zh) 2005-05-11
EP1564177B1 (de) 2012-11-14
CN100344521C (zh) 2007-10-24
EP1564177A4 (de) 2011-06-15
JP4292157B2 (ja) 2009-07-08

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