EP1057769A1 - Ascenseur - Google Patents

Ascenseur Download PDF

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Publication number
EP1057769A1
EP1057769A1 EP98961449A EP98961449A EP1057769A1 EP 1057769 A1 EP1057769 A1 EP 1057769A1 EP 98961449 A EP98961449 A EP 98961449A EP 98961449 A EP98961449 A EP 98961449A EP 1057769 A1 EP1057769 A1 EP 1057769A1
Authority
EP
European Patent Office
Prior art keywords
car
hoisting machine
hoistway
straight line
guide rails
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
EP98961449A
Other languages
German (de)
English (en)
Other versions
EP1057769B1 (fr
EP1057769A4 (fr
Inventor
Shigeru Mitsubishi Denki Kabushiki Kaisha ABE
Toshiaki Mitsubishi Denki Kabushiki Kaisha ISHII
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 EP1057769A1 publication Critical patent/EP1057769A1/fr
Publication of EP1057769A4 publication Critical patent/EP1057769A4/fr
Application granted granted Critical
Publication of EP1057769B1 publication Critical patent/EP1057769B1/fr
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
    • B66B11/0035—Arrangement of driving gear, e.g. location or support
    • B66B11/0045—Arrangement of driving gear, e.g. location or support in the hoistway
    • 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

Definitions

  • the present invention relates to an elevator apparatus in which a hoisting machine is disposed on the bottom part of a hoistway.
  • Fig. 5 is a front view showing one example of a conventional elevator apparatus.
  • Fig. 6 is a plan view showing the elevator apparatus shown in Fig. 5.
  • Fig. 7 is an explanatory view showing the route of a rope of the elevator apparatus of Fig. 5 in a developing manner.
  • the hoistway 1 of the elevator apparatus has a bottom part 1a, first and second side walls 1b and 1c facing each other, and a third side wall (back wall) 1d perpendicular to the first and second side walls 1b and 1c.
  • a car 2 and a counterweight 3 are suspended by a rope 4.
  • a pair of car suspension sheaves 5 and 6 are provided in the lower part of the car 2.
  • a counterweight suspension sheave 7 is provided on the upper part of the counterweight 3.
  • first and second return pulleys 8 and 9 are provided in the upper part of the hoistway 1.
  • a hoisting machine 10 is installed for alternately moving the car 2 and the counterweight 3 up and down with the rope 4.
  • a part of the hoisting machine 10 overlaps the car 2 in a vertical projection plane as shown in Fig. 6. Further, the hoisting machine 10 is arranged so that its axis 10a extends along the direction intersecting at right angles with the first and second side walls 1b and 1c.
  • One end part 4a and the other end part 4b of the rope 4 are fixed to upper parts in the hoistway 1, respectively.
  • the rope 4 is successively wound around the car suspension sheaves 5 and 6, the first return pulley 8, the hoisting machine 10, the second return pulley 9 and the counterweight suspension sheave 7, from the one end part 4a side in the order stated.
  • the car 2 is provided with car doors 11a and 11b and a car sill 12 for guiding the opening and closing of the car doors 11a and 11b.
  • the car 2 is moved up and down while being guided by a pair of guide rails 13 and 14 provided upright in parallel in the hoistway 1.
  • the pair of car guide rails 13 and 14 are arranged so that a straight line 15 between the rails for connecting them together passes the center of gravity G of the car 2 or the vicinity thereof, when viewed from the vertical projection plane. This is to prevent a large eccentric load from being applied to the guide rails 13 and 14.
  • a pair of car suspension sheaves 5 and 6 are also arranged so that a straight line 16 connects the suspension sheaves together.
  • the part of the rope 4 passing through the lower part of the car 2 passes the center of gravity G or the vicinity thereof, when viewed from the vertical projection plane.
  • the straight line 16 between the car suspension sheaves is diagonal to the straight line 15 between the guide rails.
  • the straight line 16 intersects the straight line 15 between the guide rails on the center of gravity G of the car 2 or in the vicinity thereof.
  • maintenance space is required at the periphery of the hoisting machine 10.
  • This maintenance space includes a space to the height H above a maintenance area 21A provided on the bottom part 1a of the hoistway 1 and a space to the height h above the hoisting machine 10.
  • the maintenance area 21A has a sufficient breadth for carrying out the maintenance work relative to the hoisting machine 10, for example, an area ranging 500 mm from one side surface of the hoisting machine 10.
  • the maintenance work area above the hoisting machine 10 generally has a range with a height h of 500 mm for the same reason. It is desirable that no equipment which could obstruct work in such a maintenance work area be present.
  • the hoisting machine 10 is arranged so that its axis 10a extends along a direction intersecting at right angles with the first and second side walls 1b and 1c of the hoistway (a direction parallel to the straight line 15 between the rails). Accordingly, when the car 2 is lowered to a lowermost travelling position to carry out maintenance work relative to the hoisting machine 10, the maintenance work area 21A is restricted by the underslung rope 4 passing under the lower part of the car 2. As a result, the dimension d0 shown in Fig. 6 is decreased, and it may be impossible to provide a sufficient maintenance work area.
  • Fig. 8 is a plan view showing another example of a conventional elevator apparatus.
  • Fig. 9 is an explanatory view showing the route of the rope in the apparatus of Fig. 8 in a developed manner.
  • a hoisting machine 17 and a buffer 18 are disposed on the bottom part of a hoistway 1.
  • a return pulley 19 is provided in the upper part of the hoistway 1.
  • a rope 20 is wound around the return pulley 19. Then, one end part 20a of the rope 20 is connected to the car 2, and the other end part 20b of the rope 20 is wound around a drum 17b of the hoisting machine 17.
  • the route of rope 20 of the conventional elevator apparatus described above is simpler than that of the rope 4 shown in Fig. 5.
  • the rope 20 is not arranged at the lower part of the car 2.
  • the rope 20 does not interfere with maintenance work relative to the hoisting machine 17 when the car 2 is at its lowermost travelling position.
  • the buffer 18 stands on the bottom part 1a of the hoistway 1 as shown in Fig. 8 the maintenance area 21A and the space thereabove are restricted by the buffer 18 and a buffer receiver 18a. Therefore, there are times when a sufficient space for maintenance work can not be ensured.
  • Japanese Utility Model Publication No. 62-11894 discloses an elevator apparatus in which a machine room is provided in the lower part of a stairway adjacent to a hoistway, and a hoisting machine is disposed in the machine room.
  • a machine room is provided in the lower part of a stairway adjacent to a hoistway, and a hoisting machine is disposed in the machine room.
  • the utilization efficiency in a building is undesirably deteriorated.
  • Japanese Patent Application laid-open No. 9-165172 discloses an elevator apparatus in which a driving device for a traction sheave is provided on a hoistway wall.
  • this elevator apparatus it has been necessary to considerably reduce the thickness of the driving device in order to prevent the traction sheave from interfering with a car.
  • a special driving device has been proposed which leads to an increase in cost.
  • the area of the hoistway must be increased, thus lowering the utilization efficiency of a building.
  • the present invention has been made in order to solve the above described problems, and therefore has an object thereof to provide an elevator apparatus in which sufficient space can be secured for maintenance work relative to a hoisting machine disposed at the bottom part of a hoistway without increasing the area of the bottom part of the hoistway.
  • An elevator apparatus is comprised of a hoistway having a bottom part; a pair of car guide rails provided upright and in parallel with each other in the hoistway; a car which moves up and down while being guided by these guide rails; a pair of car suspension sheaves provided on the lower part of the car; a rope wound around the car suspension sheaves to suspend the car in the hoistway; and a hoisting machine disposed at the bottom part of the hoistway for moving the car up and down by the rope, a part of the hoisting machine overlapping the car when viewed from a vertical projection plane, a straight line connecting the guide rails together passing the center of gravity of the car or the vicinity thereof, and a straight line connecting the pair of car suspension sheaves together being diagonal with respect to the straight line between the guide rails so as to intersect the straight line between the guide rails at the center of gravity of the car or in the vicinity thereof, wherein the hoisting machine is disposed so that its axis extending along the longitudinal direction of the hoisting machine
  • an elevator apparatus is comprised of: a hoistway having a bottom part; a pair of car guide rails provided upright and in parallel with each other in the hoistway; a car which moves up and down while being guided through these guide rails; a rope for suspending the car in the hoistway, and a hoisting machine disposed on the bottom part of the hoistway for moving the car up and down by the rope, a part of the hoisting machine overlapping the car when viewed from a vertical projection plane, wherein the hoisting machine is disposed so that its axis extending along the longitudinal direction of the hoisting machine is diagonal to a straight line between the guide rails for connecting the pair of car guide rails together when viewed from a vertical projection plane, whereby a maintenance area is provided on a side of the hoisting machine.
  • Fig. 1 is a plan view showing an elevator apparatus according to Embodiment 1 of the present invention.
  • Fig. 2 is a schematic side view showing the apparatus of Fig. 1.
  • Fig. 2 also shows a state in which a car 2 is lowered to its lowermost moving position.
  • a hoistway 1 has a bottom part 1a, first and second side walls 1b and 1c facing each other and a third side wall (back wall) 1d perpendicular to the first and second side walls 1b and 1c.
  • a car 2 and a counterweight 3 are suspended by a rope 4.
  • a pair of car suspension sheaves 5 and 6 are provided at the lower part of the car 2.
  • a counterweight suspension sheave 7 is provided on the upper part of the counterweight 3.
  • first and second return pulleys 8 and 9 are provided in the upper part of the hoistway 1.
  • a hoisting machine 10 for alternately moving the car 2 up and down and the counterweight 3 with the rope 4.
  • a part of the hoisting machine 10 overlaps the car 2 when viewed from a vertical projection plane as shown in Fig. 1.
  • the one end part 4a and the other end part 4b of the rope 4 are secured to the upper parts in the hoistway 1, respectively.
  • the rope 4 is successively wound around the car suspension sheaves 5 and 6, the first return pulley 8, the hoisting machine 10, the second return pulley 9 and the counterweight suspension sheave 7 in the order stated from the one end part 4a side.
  • the car 2 is provided with car doors 11a and 11b and a car sill 12 for guiding the opening and closing of the car doors 11a and 11b to open or close.
  • the car 2 is moved up and down while being guided through a pair of guide rails 13 and 14 provided upright in parallel in by hoistway 1.
  • the pair of car guide rails 13 and 14 are arranged so that a straight line 15 between the rails for connecting them together passes the center of gravity G of the car 2 or the vicinity thereof when viewed from the vertical projection plane. This is to prevent a large eccentric load from being applied to the guide rails 13 and 14.
  • a pair of car suspension sheaves 5 and 6 are also arranged so that a straight line 16 connects the car suspension sheaves together.
  • the part of the rope 4 passing through the lower part of the car 2 passes the center of gravity G of the car 2 or the vicinity thereof when viewed from the vertical projection plane.
  • the straight line 16 between the car suspension sheaves is diagonal to the straight line 15 between the guide rails, and intersects the straight line 15 between the guide rails on the center of gravity G of the car 2 or in the vicinity thereof.
  • the axis 10a of the hoisting machine 10 extending in the longitudinal direction of the hoisting machine 10 is canted in the same direction as that of the straight line 16 between the car suspension sheaves (section of the rope 4 passing through the lower part of the car 2) with respect to the straight line 15 between the guide rails.
  • the hoisting machine 10 is disposed so that its axis 10a is parallel to the straight line 16 between the car suspension sheaves.
  • the width d1 of a maintenance area 22A can be secured along the longitudinal direction of the hoisting machine 10.
  • a space for the maintenance work for the hoisting machine 10 can be completely secured without increasing the area of the bottom part 1a of the hoistway 1.
  • the maintenance area 22A located within, for instance, 500 mm from one side surface of the hoisting machine 10 can be uniformly secured throughout the longitudinal direction of the hoisting machine 10. Therefore, a distance L between the hoisting machine 10 and the devices below the car can also be increased so that the area for the maintenance work can be enlarged.
  • Fig. 3 is a plan view showing an elevator apparatus according to Embodiment 2 of the present invention
  • Fig. 4 is a schematic side view showing the apparatus of Fig. 3.
  • a hoisting machine 17 and a buffer 18 are installed at the bottom part of a hoistway 1.
  • a return pulley 19 is provided in the upper part of the hoistway 1.
  • a rope 20 is wound around the return pulley 19. Then, one end part 20a of the rope 20 is connected to a car 2, and the other end part 20b of the rope 20 is wound around the drum 17b of the hoisting machine 17.
  • the hoisting machine 17 is arranged so that its axis 17a extending in the longitudinal direction of the hoisting machine 17 is canted with respect to a straight line 15 connecting a pair of car guide rails 13 and 14 in a direction away from the buffer 18 when viewed from a vertical projection plane.
  • the width d1 of the maintenance area 22A can be maintained along the longitudinal direction of the hoisting machine 17.
  • an area for the maintenance work for the hoisting machine 17 can be sufficiently secured without enlarging the area of the bottom part 1a of the hoistway.
  • the maintenance area located within, for instance, 500 mm from one side surface of the hoisting machine 17 can be uniformly secured entirely in the longitudinal direction of the hoisting machine 17. Therefore, a distance between the hoisting machine 20 and the devices below the car can be also increased, with the result that the area for the maintenance work can be enlarged.
EP98961449A 1998-12-21 1998-12-21 Ascenseur Expired - Lifetime EP1057769B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP1998/005778 WO2000037349A1 (fr) 1998-12-21 1998-12-21 Ascenseur

Publications (3)

Publication Number Publication Date
EP1057769A1 true EP1057769A1 (fr) 2000-12-06
EP1057769A4 EP1057769A4 (fr) 2009-04-08
EP1057769B1 EP1057769B1 (fr) 2010-02-10

Family

ID=14209656

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98961449A Expired - Lifetime EP1057769B1 (fr) 1998-12-21 1998-12-21 Ascenseur

Country Status (4)

Country Link
EP (1) EP1057769B1 (fr)
CN (1) CN1091742C (fr)
DE (1) DE69841498D1 (fr)
WO (1) WO2000037349A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004028949A1 (fr) * 2002-09-24 2004-04-08 Toshiba Elevator Kabushiki Kaisha Systeme elevateur sans salle des machines
KR100789518B1 (ko) * 2002-09-24 2007-12-28 도시바 엘리베이터 가부시키가이샤 기계실을 갖지 않는 엘리베이터 시스템

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002173281A (ja) * 2000-12-11 2002-06-21 Toshiba Elevator Co Ltd エレベータ
US7377366B2 (en) 2002-11-25 2008-05-27 Otis Elevator Company Sheave assembly for an elevator system
CN1974362B (zh) * 2003-06-06 2010-05-19 三菱电机株式会社 无机械室电梯
FI118383B (fi) * 2004-11-16 2007-10-31 Kone Corp Hissin köysijärjestely
CN100363247C (zh) * 2005-01-21 2008-01-23 潘绍江 一种升降机的轿箱与t型导轨的连接装置
CN106006319A (zh) * 2016-07-29 2016-10-12 上海汉神机电股份有限公司 可变角度倾斜机构

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH024875U (fr) * 1988-06-23 1990-01-12
CA2310184A1 (fr) * 1994-05-04 1995-11-05 Kone Oy Espace pour mecanisme d'entrainement et ensemble de levage d'elevateur a rea de traction
EP0841283A1 (fr) * 1996-11-11 1998-05-13 Inventio Ag Installation d'ascenseur avec unité de levage positionnée dans la cage

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5834863U (ja) * 1981-08-31 1983-03-07 三菱電機株式会社 ベ−スメント式エレベ−タ
JPH0336184A (ja) * 1989-06-30 1991-02-15 Toshiba Corp ホームエレベータ
FI100793B (fi) * 1995-06-22 1998-02-27 Kone Oy Vetopyörähissi
JP2510684Y2 (ja) * 1995-08-09 1996-09-18 株式会社東芝 エレベ―タ用巻上機
JPH09165173A (ja) * 1995-12-18 1997-06-24 Otis Elevator Co ホームエレベーター
JPH09170U (ja) * 1996-09-13 1997-04-04 株式会社東芝 エレベータ

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH024875U (fr) * 1988-06-23 1990-01-12
CA2310184A1 (fr) * 1994-05-04 1995-11-05 Kone Oy Espace pour mecanisme d'entrainement et ensemble de levage d'elevateur a rea de traction
EP0841283A1 (fr) * 1996-11-11 1998-05-13 Inventio Ag Installation d'ascenseur avec unité de levage positionnée dans la cage

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO0037349A1 *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004028949A1 (fr) * 2002-09-24 2004-04-08 Toshiba Elevator Kabushiki Kaisha Systeme elevateur sans salle des machines
KR100789518B1 (ko) * 2002-09-24 2007-12-28 도시바 엘리베이터 가부시키가이샤 기계실을 갖지 않는 엘리베이터 시스템
CN100358793C (zh) * 2002-09-24 2008-01-02 东芝电梯株式会社 无机房的电梯系统

Also Published As

Publication number Publication date
DE69841498D1 (de) 2010-03-25
WO2000037349A1 (fr) 2000-06-29
CN1284044A (zh) 2001-02-14
EP1057769B1 (fr) 2010-02-10
CN1091742C (zh) 2002-10-02
EP1057769A4 (fr) 2009-04-08

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