EP1780161A1 - Dispositif ascenseur - Google Patents

Dispositif ascenseur Download PDF

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Publication number
EP1780161A1
EP1780161A1 EP04771789A EP04771789A EP1780161A1 EP 1780161 A1 EP1780161 A1 EP 1780161A1 EP 04771789 A EP04771789 A EP 04771789A EP 04771789 A EP04771789 A EP 04771789A EP 1780161 A1 EP1780161 A1 EP 1780161A1
Authority
EP
European Patent Office
Prior art keywords
upper beam
car
deflecting member
main
main ropes
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Withdrawn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
EP04771789A
Other languages
German (de)
English (en)
Other versions
EP1780161A4 (fr
Inventor
H. Mitsubishi Denki Kabushiki Kaisha KODERA
Takao Mitsubishi Denki Kabushiki Kaisha NISHIDA
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 EP1780161A1 publication Critical patent/EP1780161A1/fr
Publication of EP1780161A4 publication Critical patent/EP1780161A4/fr
Withdrawn legal-status Critical Current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
    • B66B11/0206—Car frames
    • 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
    • B66B7/08—Arrangements of ropes or cables for connection to the cars or cages, e.g. couplings
    • 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 and a counterweight are suspended inside a hoistway by a main rope.
  • a car and a counterweight are suspended inside a hoistway by a plurality of main ropes.
  • a car end portion of each of the main ropes is connected to a shackle rod.
  • Each of the shackle rods is connected to an upper beam of the car.
  • the shackle rods are disposed so as to be generally at a right angle to a longitudinal direction of the upper beam, and project above the upper beam (See Patent Literature 1, for example).
  • the present invention aims to solve the above problems and an object of the present invention is to provide an elevator apparatus enabling an overhead dimension of a hoistway to be reduced by a simple construction.
  • an elevator apparatus including: a car having a cage; and an upper beam disposed above the cage, the car being raised and lowered inside a hoistway; a main rope body for suspending the car inside the hoistway; and a rope end connecting apparatus for connecting the main rope body to the upper beam, the rope end connecting apparatus having: a deflecting member around which the main rope body is wound, the deflecting member changing orientation of an end portion of the main rope body; and a connecting rod disposed inside the upper beam, the connecting rod being connected between the end portion of the main rope body and the upper beam.
  • FIG. 1 is a side elevation showing an elevator apparatus according to Embodiment 1 of the present invention (in this example, a machine-roomless elevator).
  • a pair of car guide rails (not shown) and a pair of counterweight guide rails (not shown) are installed inside a hoistway 1.
  • a car 2 is guided by the car guide rails so as to be raised and lowered inside the hoistway 1.
  • a counterweight 3 is guided by the counterweight guide rails so as to be raised and lowered inside the hoistway 1.
  • the counterweight 3 is disposed behind the car 2 when viewed from a landing side so as to face a rear surface of the car 2 when positioned level with the car 2.
  • the car 2 has: a car frame 4; and a cage 5 supported by the car frame 4.
  • a car entrance is disposed on a front surface of the cage 5.
  • the car entrance is opened and closed by a pair of car doors 6.
  • Landing entrances disposed on landings are opened and closed by pairs of landing doors 7.
  • the car doors 6 and the landing doors 7 are opened and closed by a driving force from a door motor (not shown) mounted on the car 2.
  • the car frame 4 has: a lower frame 8; a pair of vertical stanchions 9 disposed on the lower frame 8; and an upper beam 10 fixed between upper end portions of the vertical stanchions 9.
  • the cage 5 is supported on the lower frame 8.
  • the vertical stanchions 9 are disposed vertically on two sides of the cage 5.
  • the upper beam 10 is disposed horizontally so as to be parallel to a width direction of the cage 5.
  • a driving machine (a hoisting machine) 11 for generating a driving force for raising and lowering the car 2 and the counterweight 3 is disposed in an upper portion inside the hoistway 1.
  • the driving machine 11 has: a driving machine main body 12 including a motor and a brake; and a drive sheave 13 rotated by the driving machine main body 12.
  • the driving machine 11 is supported by a supporting beam (not shown) fixed to an upper portion inside the hoistway 1.
  • the supporting beam may be supported by at least a portion of the car guide rails and the counterweight guide rails, or by a building.
  • a deflection sheave 14 is also supported by the supporting beam.
  • a main rope body 150 including a plurality of main ropes 15 (only one is shown in Figure 1) is wound around the drive sheave 13 and the deflection sheave 14.
  • Each of the main ropes 15 has: a car end portion 15a connected to the upper beam 10; and a counterweight end portion 15b connected to an upper portion of the counterweight 3.
  • the car 2 and the counterweight 3 are suspended inside the hoistway 1 by the main ropes 15 using a one-to-one (1:1) roping method.
  • Figure 2 is a front elevation showing the car 2 from Figure 1
  • Figure 3 is a front elevation showing part of Figure 2 enlarged
  • Figure 4 is a cross section taken along line IV - IV in Figure 3, and a portion of the upper beam 10 is shown cut away in Figures 2 and 3.
  • a plurality of deflecting pulleys 21 (equal in number to the main ropes 15) functioning as a deflecting member are disposed at a central portion in a longitudinal direction of the upper beam 10.
  • the deflecting pulleys 21 are each independently rotatable around a shaft 22 mounted to the upper beam 10.
  • a corresponding main rope 15 is wound around each of the deflecting pulleys 21.
  • a rope groove into which a main rope 15 is inserted is disposed on an outer periphery of each of the deflecting pulleys 21. Orientations of the car end portions 15a of the main ropes 15 are deflected by 90 degrees or generally by 90 degrees as they wind around the deflecting pulleys 21.
  • An upper beam groove 10a is formed on the upper beam 10 in the longitudinal direction.
  • the deflecting pulleys 21 are accommodated completely inside the upper beam groove 10a. In other words, the deflecting pulleys 21 are disposed inside the upper beam 10.
  • a pair of flat rod connecting portions 10b and 10c are also fixed inside the upper beam groove 10a so as to face each other and be spaced apart from each other.
  • the rod connecting portions 10b and 10c are disposed so as to be symmetrical or generally symmetrical relative to center in a width direction of the car 2.
  • the rod connecting portions 10b and 10c are constituted by metal plates welded inside the groove 10a, for example.
  • a metal connecting rod 23 is connected to the car end portion 15a of each of the main ropes 15 and fastened.
  • Each of the connecting rods 23 passes through one of the rod connecting portions 10b and 10c.
  • the connecting rods 23 are accommodated inside the upper beam groove 10a. In other words, the connecting rods 23 are disposed inside the upper beam 10.
  • the connecting rods 23 are also disposed horizontally or generally horizontally in the longitudinal direction of the upper beam 10.
  • Springs (shackle springs) 24 are disposed between end portions of the connecting rods 23 on an opposite side from the main ropes 15 and the rod connecting portions 10b and 10c.
  • a rope end connecting apparatus 25 according to Embodiment 1 includes the deflecting pulleys 21, the shaft 22, the connecting rods 23, and the springs 24.
  • the main ropes 15 are connected to the upper beam 10 by the rope end connecting apparatus 25.
  • the car end portions 15a of the main ropes 15 are distributed toward two sides in the width direction of the car 2 (the longitudinal direction of the upper beam 10) by the deflecting pulleys 21.
  • four main ropes 15 are distributed as two pairs, as shown in Figure 4. It is preferable for the main ropes 15 to be distributed as uniformly as possible toward the two sides in the width direction of the car 2 in this manner. Consequently, if the number of main ropes 15 is odd, it is preferable for them to be distributed as n and n + 1.
  • orientations of the car end portions 15a of the main ropes 15 are changed by the deflecting pulleys 21.
  • the main ropes 15 are vertical or generally vertical from the deflecting pulleys 21 toward the drive sheave 13
  • the main ropes 15 are horizontal or generally horizontal from the deflecting pulleys 21 toward the connecting rods 23.
  • the connecting rods 23 can also be disposed horizontally or generally horizontally inside the upper beam 10.
  • the deflecting pulleys 21 are disposed coaxially, the number of parts can be reduced.
  • the main ropes 15 can be prevented from sliding along outer peripheries of the deflecting pulleys 21, enabling deterioration of the main ropes 15 due to abrasion to be prevented.
  • the main ropes 15 are distributed as uniformly as possible toward two sides in the width direction of the car 2, eccentric loads from the main ropes 15 can be prevented from acting on the car 2, enabling the car 2 to be raised and lowered stably.
  • Figure 5 is a plan showing a rope end connecting apparatus of an elevator apparatus according to Embodiment 2 of the present invention
  • Figure 6 is a cross section taken along line VI - VI in Figure 5.
  • An upper beam 31 is disposed on an upper portion of a car 2 (see Figure 1).
  • the upper beam 31 has a pair of upper beam side surface portions 31a and 31b.
  • the upper beam side surface portions 31a and 31b are disposed parallel to each other so as to be spaced apart from each other.
  • the upper beam side surface portions 31a and 31b are disposed horizontally so as to be parallel to a width direction of the car 2.
  • a pair of flat rod connecting portions 32a and 32b are fixed between the upper beam side surface portions 31a and 31b so as to face each other and be spaced apart from each other.
  • the rod connecting portions 32a and 32b are disposed so as to be symmetrical or generally symmetrical relative to center in the width direction of the car 2.
  • the rod connecting portions 32a and 32b are constituted by metal plates welded between the upper beam side surface portions 31a and 31b, for example.
  • a cylindrical deflecting member 33 is disposed at a central portion in a longitudinal direction of the upper beam 31.
  • the deflecting member 33 is fixed to the upper beam 31.
  • the deflecting pulleys 21 according to Embodiment 1 were rotatable, but the deflecting member 33 according to Embodiment 2 is unrotatable.
  • Car end portions 15a of main ropes 15 are wound around the deflecting member 33.
  • a plurality of rope grooves into which the main ropes 15 are inserted are disposed on an outer periphery of the deflecting member 33. Orientations of the car end portions 15a of the main ropes 15 are deflected by 90 degrees or generally by 90 degrees as they wind around the deflecting member 33.
  • a lower portion of the deflecting member 33 is disposed inside the upper beam 31, in other words, between the upper beam side surface portions 31a and 31b.
  • a metal connecting rod 23 is connected by fastening to the car end portion 15a of each of the main ropes 15. Each of the connecting rods 23 passes through one of the rod connecting portions 32a and 32b.
  • the connecting rods 23 are disposed inside the upper beam 31.
  • the connecting rods 23 are also disposed horizontally or generally horizontally in the longitudinal direction of the upper beam 31.
  • Nuts 34 for preventing dislodging of the connecting rods 23 from the rod connecting portions 32a and 32b are screwed onto end portions of the connecting rods 23 on an opposite side from the main ropes 15. Tension from the main ropes 15 acting on the connecting rods 23 is borne by the rod connecting portions 32a and 32b through the nuts 34.
  • a rope end connecting apparatus 35 according to Embodiment 2 includes the deflecting member 33, the connecting rods 23, and the nuts 34.
  • the main ropes 15 are connected to the upper beam 31 by the rope end connecting apparatus 35.
  • the car end portions 15a of the main ropes 15 are distributed alternately toward two sides in the width direction of the car 2 by the deflecting member 33.
  • a drive sheave 13 is also divided in two axially. Specifically, the drive sheave 13 has a first sheave portion 13a and a second sheave portion 13b. The rest of the configuration is similar to that of Embodiment 1.
  • the deflecting member 33 may also be unrotatable. All of the main ropes 15 can thereby be wound around a shared deflecting member 33, enabling the number of parts to be reduced and also enabling costs to be reduced.
  • Reductions in overall size and weight of the drive sheave 13 can be made by dividing the drive sheave 13 into the first and second sheave portions 13a and 13b if the main ropes 15 rise up from two sides of the deflecting member 33.
  • Figure 7 is a plan showing a rope end connecting apparatus of an elevator apparatus according to Embodiment 3 of the present invention
  • Figure 8 is a cross section taken along line VIII - VIII in Figure 7.
  • a plurality (a pair) of cylindrical deflecting members 36 and 37 are fixed to an upper beam 31.
  • Main ropes 15 are wound around the deflecting members 36 and 37 so as to be distributed between them.
  • the rest of the configuration is similar to that of Embodiment 2.
  • each of the deflecting members 36 and 37 can be made smaller than that of the deflecting member 33 according to Embodiment 2, enabling the deflecting members 36 and 37 to be easily disposed inside the upper beam 31.
  • Figure 9 is a plan showing a rope end connecting apparatus of an elevator apparatus according to Embodiment 4 of the present invention
  • Figure 10 is a cross section taken along line X - X in Figure 9.
  • a plurality of cylindrical deflecting members (equal in number to main ropes 15), i.e., first through fourth deflecting members 41 through 44, are fixed to an upper beam 31.
  • the first deflecting member 41 and the second deflecting member 42 may be configured as an integrated part or may be configured as separate parts.
  • the third deflecting member 43 and the fourth deflecting member 44 may be configured as an integrated part or may be configured as separate parts.
  • a corresponding main rope 15 is wound around each of the deflecting members 41 through 44. Diameters (radii and radii of curvature of outer peripheral surfaces) of the deflecting members 41 through 44 are equal to each other. Positions of central axes of the first deflecting member 41 and the second deflecting member 42 are offset from each other such that rising positions of the main ropes 15 are offset. In addition, positions of central axes of the third deflecting member 43 and the fourth deflecting member 44 are also offset from each other.
  • the main ropes 15 can be raised at appropriate positions relative to rope grooves of a drive sheave 13 positioned directly above the deflecting members 41 through 44, enabling fleet angles of the main ropes 15 to be reduced (to less than or equal to 2.5 degrees, for example).
  • fleet angles of the main ropes 15 to be reduced (to less than or equal to 2.5 degrees, for example).
  • Figure 11 is a plan showing a rope end connecting apparatus of an elevator apparatus according to Embodiment 5 of the present invention
  • Figure 12 is a cross section taken along line XII - XII in Figure 11.
  • a plurality of cylindrical deflecting members (equal in number to main ropes 15), i.e., first through fourth deflecting members 45 through 48, are fixed to an upper beam 31.
  • the first deflecting member 45 and the second deflecting member 46 may be configured as an integrated part or may be configured as separate parts.
  • the third deflecting member 47 and the fourth deflecting member 48 may be configured as an integrated part or may be configured as separate parts.
  • a corresponding main rope 15 is wound around each of the deflecting members 45 through 48.
  • Diameters (radii and radii of curvature of outer peripheral surfaces) of the first and third deflecting members 45 and 47 are equal to each other.
  • Diameters of the second and fourth deflecting members 46 and 48 are equal to each other.
  • the diameters of the second and the fourth deflecting member 46 and 48 are smaller than the diameters of the first and the third deflecting member 45 and 47.
  • the first deflecting member 45 and the second deflecting member 46 are disposed coaxially.
  • the third deflecting member 47 and the fourth deflecting member 48 are also disposed coaxially.
  • a corresponding main rope 15 is wound around each of the deflecting members 45 through 48.
  • the diameters of the first deflecting member 45 and the second deflecting member 46 differ from each other such that rising positions of the main ropes 15 are offset.
  • the diameters of the third deflecting member 47 and the fourth deflecting member 48 also differ from each other.
  • the main ropes 15 can be raised at appropriate positions relative to rope grooves of a drive sheave 13 positioned directly above the deflecting members 45 through 48, enabling fleet angles of the main ropes 15 to be reduced (to less than or equal to 2.5 degrees, for example).
  • fleet angles of the main ropes 15 to be reduced (to less than or equal to 2.5 degrees, for example).
  • Figure 13 is a plan showing a rope end connecting apparatus of an elevator apparatus according to Embodiment 6 of the present invention
  • Figure 14 is a cross section taken along line XIV - XIV in Figure 13.
  • springs (compression springs) 24 are disposed between end portions of connecting rods 23 on an opposite side from main ropes 15 and rod connecting portions 10b and 10c in a similar manner to Embodiment 1.
  • Deflecting members 36 and 37 are disposed on an upper beam 31 so as to be rotatable around horizontal shafts 49 and 50.
  • the shafts 49 and 50 are disposed parallel to a depth direction of a car 2 (see Figure 1).
  • Bearings (not shown) for the deflecting members 36 and 37 are disposed between the shafts 49 and 50 and the deflecting members 36 and 37.
  • Figure 15 is a plan showing part of a rope end connecting apparatus of an elevator apparatus according to Embodiment 7 of the present invention.
  • connecting rods 23 are connected to rod connecting portions 32a and 32b so as to be inclined.
  • contact angles of main ropes 15 relative to a first deflecting member 36 differ from each other.
  • contact angles of main ropes 15 relative to a second deflecting member 37 also differ from each other.
  • the rest of the configuration is similar to that of Embodiment 6.
  • a deflecting member does not need to have a cylindrical shape if it is unrotatable, and may also have a curved surface only on a portion around which a main rope is wound.
  • rope end connecting apparatuses for connecting a car end portion to an upper beam are shown, but the present invention may also be applied to rope end connecting apparatuses for connecting a counterweight end portion to an upper portion of a counterweight.
  • a counterweight is disposed behind a car, but a counterweight may also be disposed beside a car so as to face a side surface of the car when positioned level with the car.
  • a driving machine is disposed in an upper portion inside a hoistway, but a driving machine may also be disposed in a machine room in an upper portion of a hoistway.

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  • Engineering & Computer Science (AREA)
  • Civil Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
EP04771789A 2004-08-18 2004-08-18 Dispositif ascenseur Withdrawn EP1780161A4 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2004/011828 WO2006018868A1 (fr) 2004-08-18 2004-08-18 Dispositif ascenseur

Publications (2)

Publication Number Publication Date
EP1780161A1 true EP1780161A1 (fr) 2007-05-02
EP1780161A4 EP1780161A4 (fr) 2012-01-18

Family

ID=35907265

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04771789A Withdrawn EP1780161A4 (fr) 2004-08-18 2004-08-18 Dispositif ascenseur

Country Status (4)

Country Link
EP (1) EP1780161A4 (fr)
JP (1) JPWO2006018868A1 (fr)
CN (1) CN1826280A (fr)
WO (1) WO2006018868A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009050113A1 (fr) * 2007-10-11 2009-04-23 Pfeifer Holding Gmbh & Co. Kg Raccord d'extrémité pour un câble, combinaison de plusieurs raccords d'extrémité, installation ou dispositif les comprenant, agencement les comprenant, rail de fixation et utilisation de celui-ci
EP1992582A4 (fr) * 2006-03-07 2013-03-13 Mitsubishi Electric Corp Dispositif de suspension pour ascenseur

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013180868A (ja) * 2012-03-02 2013-09-12 Hitachi Ltd 省スペースエレベータ
FI125124B (fi) * 2012-05-23 2015-06-15 Kone Corp Hissijärjestely ja menetelmä
CN111372882A (zh) * 2017-11-24 2020-07-03 三菱电机株式会社 电梯补偿绳索的安装装置

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1407158A (en) * 1972-12-01 1975-09-24 Hitachi Ltd Elevator device
JP2003276966A (ja) * 2002-03-27 2003-10-02 Toshiba Elevator Co Ltd エレベータ装置
WO2004063075A1 (fr) * 2003-01-11 2004-07-29 Jeong-Du Choi Appareil d'egalisation de tension des cordes principales d'un ascenseur

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH085605B2 (ja) * 1989-09-08 1996-01-24 三菱電機株式会社 エレベータの秤装置

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1407158A (en) * 1972-12-01 1975-09-24 Hitachi Ltd Elevator device
JP2003276966A (ja) * 2002-03-27 2003-10-02 Toshiba Elevator Co Ltd エレベータ装置
WO2004063075A1 (fr) * 2003-01-11 2004-07-29 Jeong-Du Choi Appareil d'egalisation de tension des cordes principales d'un ascenseur

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2006018868A1 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1992582A4 (fr) * 2006-03-07 2013-03-13 Mitsubishi Electric Corp Dispositif de suspension pour ascenseur
WO2009050113A1 (fr) * 2007-10-11 2009-04-23 Pfeifer Holding Gmbh & Co. Kg Raccord d'extrémité pour un câble, combinaison de plusieurs raccords d'extrémité, installation ou dispositif les comprenant, agencement les comprenant, rail de fixation et utilisation de celui-ci

Also Published As

Publication number Publication date
EP1780161A4 (fr) 2012-01-18
WO2006018868A1 (fr) 2006-02-23
CN1826280A (zh) 2006-08-30
JPWO2006018868A1 (ja) 2008-05-01

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