EP1700813A1 - Aufzugssystem - Google Patents

Aufzugssystem Download PDF

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Publication number
EP1700813A1
EP1700813A1 EP03772819A EP03772819A EP1700813A1 EP 1700813 A1 EP1700813 A1 EP 1700813A1 EP 03772819 A EP03772819 A EP 03772819A EP 03772819 A EP03772819 A EP 03772819A EP 1700813 A1 EP1700813 A1 EP 1700813A1
Authority
EP
European Patent Office
Prior art keywords
car
rope
hoistway
sheaves
elevator apparatus
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Withdrawn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
EP03772819A
Other languages
English (en)
French (fr)
Other versions
EP1700813A4 (de
Inventor
Atsushi Mitsui
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 EP1700813A1 publication Critical patent/EP1700813A1/de
Publication of EP1700813A4 publication Critical patent/EP1700813A4/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Withdrawn legal-status Critical Current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
    • B66B9/00—Kinds or types of lifts in, or associated with, buildings or other structures
    • B66B9/02—Kinds or types of lifts in, or associated with, buildings or other structures actuated mechanically otherwise than by rope or cable
    • B66B9/027—Kinds or types of lifts in, or associated with, buildings or other structures actuated mechanically otherwise than by rope or cable by rope climbing devices
    • 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
    • B66B11/005—Arrangement of driving gear, e.g. location or support in the hoistway on the car
    • 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
    • B66B7/10—Arrangements of ropes or cables for equalising rope or cable tension

Definitions

  • the present invention relates to an elevator apparatus in which a car is raised and lowered by a driving force from a driving machine mounted to the car.
  • the present invention aims to solve the above problems and an obj ect of the present invention is to provide an elevator apparatus enabling horizontal dimensions of a hoistway to be further reduced.
  • an elevator apparatus including: a car guide rail installed inside a hoistway; a rope body suspended inside the hoistway; a car suspended inside the hoistway by the rope body, and raised and lowered inside the hoistway along the car guide rail; a driving machine for raising and lowering said car, having a drive sheave onto which the rope body is wound, and being mounted to the car; a deflection sheave mounted to the car, and onto which the rope body is wound; and a weight for imparting tension to the rope body, connected to the rope body below the car, and disposed inside a region projected vertically from the car.
  • an elevator apparatus including: a pair of car guide rails installed inside a hoistway; a pair of rope bodies suspended inside the hoistway; a car suspended inside the hoistway by the rope bodies, and raised and lowered inside the hoistway along the car guide rails; a pair of driving machines for raising and lowering said car, each having a drive sheave onto which the rope bodies are respectively wound, and being mounted to the car; a pair of deflection sheaves mounted to the car, and onto which the rope bodies are respectively wound; and a weight for imparting tension to the rope bodies, connected to the rope bodies below the car, and disposed inside a region projected vertically from the car.
  • an elevator apparatus including: a rope body suspended inside a hoistway; a car suspended inside the hoistway by the rope body, and raised and lowered inside the hoistway; a driving machine for raising and lowering said car, having a drive sheave onto which the rope body is wound, andbeingmounted to the car; a first deflection sheave mounted to the car, and onto which the rope body is wound on a first side of the drive sheave; a second deflection sheave mounted to the car, and onto which the rope body is wound on a second side of the drive sheave; and a weight for imparting tension to the rope body, connected to the rope body below the car, wherein: the driving machine is disposed such that an axis of rotation of the drive sheave extends vertically; and the first and second deflection sheaves are disposed such that an axis of rotation thereof extends horizontally.
  • an elevator apparatus including: a pair of rope bodies suspended inside a hoistway; a car suspended inside the hoistway by the rope bodies, and raised and lowered inside the hoistway; a pair of driving machines for raising and lowering said car, each having a drive sheave onto which the rope bodies are respectively wound, and being mounted to the car; a pair of first deflection sheaves mounted to the car, and onto which the rope bodies are respectively wound on a first side of the drive sheaves; a pair of second deflection sheaves mounted to the car, and onto which the rope bodies are respectively wound on a second side of the drive sheaves; and a weight for imparting tension to the rope bodies, connected to the rope bodies below the car, wherein: the driving machines are disposed such that an axis of rotation of the drive sheaves extends vertically; and the first and second deflection sheaves are disposed such that an axis of rotation thereof extends horizontally.
  • Figure 1 is a front elevation showing an elevator apparatus (a self-propelled elevator) according to Embodiment 1 of the present invention
  • Figure 2 is a plan showing the elevator apparatus in Figure 1.
  • a pair of car guide rails 2 are installed inside a hoistway 1.
  • a car 3 is guided by the car guide rails 2 so as to be raised and lowered inside the hoistway 1.
  • Guiding apparatuses (such as sliding guide shoes or guide rollers) that slide or roll along the car guide rails 2 are mounted to the car 3.
  • the car guide rails 2 are disposed such that an imaginary straight line joining them to each other passes through a center of gravity of the car 3 within a vertical plane of projection.
  • a pair of supporting beams 4 are fixed to an upper portion inside the hoistway 1.
  • a rope fastening member 4a is fixed to each of the supporting beams 4.
  • a pair of rope bodies 5 are suspended inside the hoistway 1 from the rope fastening members 4a.
  • Each of the rope bodies 5 is connected to a rope fastening member 4a by means of a rope upper end connecting portion 6.
  • Each of the rope bodies 5 includes one rope or a plurality of ropes (two in the figures). Resin-coated ropes in which an outer periphery is coated with a high-friction resin material can be used for the ropes.
  • a pair of driving machines 7 are mounted to a lower portion of the car 3.
  • Each of the driving machines 7 has: a drive sheave 8; and a motor portion 9 for rotating the drive sheave 8.
  • the rope bodies 5 are wound around the drive sheaves 8.
  • the driving machines 7 are cylindrical hoisting machines having an axial length dimension that is greater than a radial dimension of the drive sheaves 8.
  • the driving machines 7 are disposed such that axes of rotation of the drive sheaves 8 are horizontal (or generally horizontal), and extend parallel (or generally parallel) to a depth direction of the car 3.
  • a pair of deflection sheaves 10 are mounted to a lower portion of the car 3.
  • a rope body 5 is wound around each of the deflection sheaves 10.
  • Each of the deflection sheaves 10 is disposed such that an axis of rotation thereof is horizontal (or generally horizontal) , and extends parallel (or generally parallel) to a depth direction of the car 3.
  • the deflection sheaves 10 function to deflect downward the rope bodies 5 extending obliquely upward from the drive sheave 8, and also function to ensure a contact angle (amount of wrap) of the rope bodies 5 on the drive sheaves 8.
  • the car 3 is suspended by the rope bodies 5 in line with its center of gravity.
  • Two sets of rope bodies 5, driving machines 7, and deflection sheaves 10 are disposed centrosymmetrically to each other relative to the center of gravity of the car 3 in a vertical plane of projection.
  • a rectangular parallelepiped (block-shaped) weight 11 for imparting tension to the rope bodies 5 is suspended on lower end portions of the rope bodies 5.
  • the weight 11 is connected to the rope bodies 5 below the car 3 with rope lower end connecting portions 12 interposed.
  • the two sets of rope bodies 5 are connected to a shared weight 11.
  • the weight 11 is also disposed inside a region projected vertically from the car 3. The weight of the weight 11 is set such that sufficient traction acts between the rope bodies 5 and the drive sheave 8.
  • a pair of weight rails 13 for bracing the weight 11 are installed in a lower portion inside the hoistway 1.
  • the weight rails 13 permit vertical displacement of the weight 11 while regulating horizontal displacement.
  • Engaging members (not shown) for engaging the weight rails 13 are mounted to the weight 11.
  • a car buffer 14 for receiving the car 3, and a pair of weight buffers 15 for receiving the weight 11 are also installed in a lower portion inside the hoistway 1.
  • a buffer aperture 11a through which the car buffer 14 passes is disposed through the weight 11.
  • the weight 11 since the weight 11 does not pass the car 3, the weight 11 can be disposed directly below the car 3, that is inside a region projected vertically from the car 3, enabling horizontal dimensions of the hoistway 1 to be further reduced. Because the driving machines 7 are also mounted to a lower portion of the car 3, horizontal dimensions of the hoistway 1 can thereby also be further reduced.
  • car guide rails 2 are installed inside the hoistway 1 separately from the driving rope bodies 5, the car 3 can be raised and lowered stably.
  • the car 3 Because the car 3 is suspended by rope bodies 5 in line with its center of gravity, the car 3 can be raised and lowered more stably.
  • the car 3 can be raised and lowered even more stably.
  • the weight 11 and the car buffer 14 can be disposed in a lower portion inside the hoistway 1 while avoiding mutual interference, enabling space inside the hoistway 1 to be used effectively.
  • weight rails 13 are used to regulate the horizontal displacement of the weight 11, the weight 11 can be prevented from swinging, enabling the car 3 to be raised and lower stably. Furthermore, because the weight rails 13 permit vertical displacement of the weight 11, tension can still be imparted to the rope bodies 5 stably even if stretching occurs in the rope bodies 5.
  • weight buffers 15 are installed below the weight 11, mechanical shock therefrom can be suppressed even in the unlikely event that the weight 11 were to drop.
  • W1 be the weight of the car 3
  • C be the capacity of the car 3
  • W2 be the weight of the weight 11
  • tension acting on a rope body 5 on a side of a drive sheave 8 nearer to the weight 11 is given by W2/2
  • tension acting on the rope body 5 on a side of the drive sheave 8 nearer to the car 3 is given by (W1 + C + W)/2.
  • the traction ratio in the drive sheave 8 is given by: ⁇ (Wl + C + W2)/W2 ⁇ .
  • the weight of the weight 11 can be reduced by constituting the rope bodies 5 using a resin-coated rope to increase traction, enabling the driving machines 7 to be reduced in size.
  • D the diameter of the drive sheaves 8
  • the load torque acting on the driving machines 7 is D/2 ⁇ (W1 + C + W2) - W2/2 ⁇ , which is greater than in conventional traction elevators.
  • the diameter of the drive sheaves 8 can be reduced, thereby enabling the load torque acting on the driving machines 7 to be suppressed.
  • Figure 3 is a side elevation showing an elevator apparatus according to Embodiment 2 of the present invention
  • Figure 4 is a plan showing the elevator apparatus in Figure 3, Figure 3 being a side elevation viewed from the right in Figure 4.
  • a pair of driving machines 7 are disposed such that axes of rotation of drive sheaves 8 extend parallel (or generally parallel) to a width direction of a car 3.
  • a pair of deflection sheaves 10 are disposed such that axes of rotation thereof also extend parallel (or generally parallel) to the width direction of the car 3.
  • the drive sheaves 8 and deflection sheaves 10 are disposed on two sides of the car 3 in the width direction in a vertical plane of projection.
  • Two sets of rope bodies 5, driving machines 7, and deflection sheaves 10 are disposed centrosymmetrically to each other relative to the center of gravity of the car 3 in the vertical plane of projection.
  • Engaging members (not shown) for engaging car guide rails 2 are mounted to a weight 11.
  • the car guide rails 2 also perform the function of the weight rails 13 in Embodiment 1.
  • the rest of the configuration is similar to that of Embodiment 1.
  • horizontal dimensions of the hoistway 1 can also be further reduced. If the width dimensions of the car 3 are small and the depth dimensions are large, the drive sheave 8 and the deflection sheaves 10 can be disposed particularly easily.
  • portions connecting the rope bodies 5 to the weight 11 are disposed between side walls of the car 3 and wall surfaces of the hoistway 1 and do not overlap with the car 3 in a vertical plane of projection, lower end connecting portions 12 will not interfere with the car 3 even in the unlikely event that the car 3 were to collide with the car buffer 14. For this reason, pit depth in the hoistway 1 can be reduced.
  • Figure 5 is a side elevation showing an elevator apparatus according to Embodiment 3 of the present invention
  • Figure 6 is a plan showing the elevator apparatus in Figure 5, Figure 5 being a side elevation viewed from the right in Figure 6.
  • Embodiment 3 mounting positions of driving machines 7 and deflection sheaves 10 onto a car 3 are reversed compared to those of Embodiment 2.
  • a weight 11 having a reduced base area and increased height dimensions compared to the weight 11 in Embodiment 2 is used.
  • the rest of the configuration is similar to that of Embodiment 2.
  • Figure 7 is a side elevation showing an elevator apparatus according to Embodiment 4 of the present invention.
  • driving machines 7 and deflection sheaves 10 are mounted to an upper portion of a car 3.
  • the rest of the configuration is similar to that of Embodiment 2.
  • Embodiments 1 to 4 cylindrical hoisting machines were used for the driving machines 7, but thin hoisting machines having an axial length dimension that is less than a radial dimension of a drive sheave may also be used.
  • Embodiments 1 to 4 two sets of rope bodies 5, drivingmachines 7, and deflection sheaves 10 were used, but three or more sets may also be used if installation space can be secured.
  • FIG 8 is a front elevation showing an elevator apparatus according to Embodiment 5 of the present invention
  • Figure 9 is a plan showing the elevator apparatus in Figure 8.
  • a pair of driving machines 21 are mounted to a lower portion of a car 3.
  • Each of the driving machines 21 has: a drive sheave 22; and a motor portion 23 for rotating the drive sheave 22.
  • Rope bodies 5 are wound around the drive sheaves 22.
  • the driving machines 21 are thin hoisting machines having an axial length dimension that is less than a radial dimension of the drive sheaves 22.
  • the driving machines 21 are disposed such that axes of rotation of the drive sheaves 22 extend vertically (or generally vertically).
  • a pair of first deflection sheaves 24 and a pair of second deflection sheaves 25 are mounted to a lower portion of the car 3.
  • the rope bodies 5 are wound around each of the first deflection sheaves 24 on a first side (a car 3 side) of the drive sheaves 22.
  • the rope bodies 5 are wound around each of the second deflection sheaves 25 on a second side (a weight 11 side) of the drive sheaves 22.
  • Each of the deflection sheaves 24 and 25 is disposed such that an axis of rotation thereof is horizontal (or generally horizontal), and extends parallel (or generally parallel) to a depth direction of the car 3.
  • the first and second deflection sheaves 24 and 25 are also disposed so as to be offset from each other in a vertical direction. Specifically, the first deflection sheaves 24 are disposed at a position that is higher than that of the second deflection sheaves 25.
  • Two sets of rope bodies 5, driving machines 21, first deflection sheaves 24, and second deflection sheaves 25 are disposed centrosymmetrically to each other relative to the center of gravity of the car 3 in a vertical plane of projection.
  • the rest of the configuration is similar to that of Embodiment 1.
  • the weight 11 can also be disposed directly below the car 3, enabling horizontal dimensions of the hoistway 1 to be further reduced. Because the driving machines 21 are mounted to a lower portion of the car 3, horizontal dimensions of the hoistway 1 can thereby also be further reduced.
  • first deflection sheaves 24 are disposed at a position that is higher than that of the second deflection sheaves 25, approach angles (fleet angles) of the rope bodies 5 entering the drive sheaves 22 from the first and second deflection sheaves 24 and 25 can be reduced.
  • Figure 10 is a front elevation showing an elevator apparatus according to Embodiment 6 of the present invention.
  • driving machines 21, first deflection sheaves 24, and second deflection sheaves 25 are mounted to an upper portion of a car 3.
  • the rest of the configuration is similar to that of Embodiment 5.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Civil Engineering (AREA)
  • Automation & Control Theory (AREA)
  • Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
  • Types And Forms Of Lifts (AREA)
  • Cage And Drive Apparatuses For Elevators (AREA)
EP03772819A 2003-11-17 2003-11-17 Aufzugssystem Withdrawn EP1700813A4 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2003/014583 WO2005047161A1 (ja) 2003-11-17 2003-11-17 エレベータ装置

Publications (2)

Publication Number Publication Date
EP1700813A1 true EP1700813A1 (de) 2006-09-13
EP1700813A4 EP1700813A4 (de) 2011-08-31

Family

ID=34587069

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03772819A Withdrawn EP1700813A4 (de) 2003-11-17 2003-11-17 Aufzugssystem

Country Status (4)

Country Link
EP (1) EP1700813A4 (de)
JP (1) JPWO2005047161A1 (de)
CN (1) CN1313351C (de)
WO (1) WO2005047161A1 (de)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITRM20090499A1 (it) * 2009-09-30 2011-04-01 Vipal S P A Sistema di movimentazione per elevatore.
JP6118720B2 (ja) * 2013-12-19 2017-04-19 株式会社日立製作所 エレベーター装置
CN110436316B (zh) * 2019-07-11 2021-06-04 日立电梯（中国）有限公司 电梯系统、轿厢及其吊挂机构
CN110697548B (zh) * 2019-08-31 2021-04-06 上海汉神机电股份有限公司 一种阻止电梯轿厢体振动的减振系统及其工作方法

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3127957A (en) * 1961-07-19 1964-04-07 Donald S Nelson Elevator
EP0867395A2 (de) * 1997-03-27 1998-09-30 Otis Elevator Company Seilkletternder Aufzug
WO1999043601A2 (en) * 1998-02-26 1999-09-02 Otis Elevator Company Dual sheave rope climber using flat flexible ropes
JP2000038274A (ja) * 1998-07-23 2000-02-08 Otis Elevator Co かご自走型エレベーター
EP1028082A2 (de) * 1999-02-10 2000-08-16 Mitsubishi Denki Kabushiki Kaisha Aufzugssystem
US6345695B1 (en) * 1998-12-22 2002-02-12 Otis Elevator Company Elevator system with counter-rotating drive sheaves

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0755780B2 (ja) * 1989-12-05 1995-06-14 三菱電機株式会社 トラクション式エレベータ装置
JP2002145556A (ja) * 2000-11-13 2002-05-22 Mitsubishi Electric Corp エレベータ装置

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3127957A (en) * 1961-07-19 1964-04-07 Donald S Nelson Elevator
EP0867395A2 (de) * 1997-03-27 1998-09-30 Otis Elevator Company Seilkletternder Aufzug
WO1999043601A2 (en) * 1998-02-26 1999-09-02 Otis Elevator Company Dual sheave rope climber using flat flexible ropes
JP2000038274A (ja) * 1998-07-23 2000-02-08 Otis Elevator Co かご自走型エレベーター
US6345695B1 (en) * 1998-12-22 2002-02-12 Otis Elevator Company Elevator system with counter-rotating drive sheaves
EP1028082A2 (de) * 1999-02-10 2000-08-16 Mitsubishi Denki Kabushiki Kaisha Aufzugssystem

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2005047161A1 *

Also Published As

Publication number Publication date
EP1700813A4 (de) 2011-08-31
CN1714039A (zh) 2005-12-28
WO2005047161A1 (ja) 2005-05-26
JPWO2005047161A1 (ja) 2007-06-14
CN1313351C (zh) 2007-05-02

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