EP1911714B1 - Aufzugsvorrichtung - Google Patents

Aufzugsvorrichtung Download PDF

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Publication number
EP1911714B1
EP1911714B1 EP08000356A EP08000356A EP1911714B1 EP 1911714 B1 EP1911714 B1 EP 1911714B1 EP 08000356 A EP08000356 A EP 08000356A EP 08000356 A EP08000356 A EP 08000356A EP 1911714 B1 EP1911714 B1 EP 1911714B1
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EP
European Patent Office
Prior art keywords
cage
sheave
hoist
weight
rope
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.)
Expired - Lifetime
Application number
EP08000356A
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English (en)
French (fr)
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EP1911714A1 (de
Inventor
Takenobu Honda
Eiji Ando
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
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Mitsubishi Electric Corp
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Filing date
Publication date
Application filed by Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to EP08000356A priority Critical patent/EP1911714B1/de
Priority to DE60043599T priority patent/DE60043599D1/de
Publication of EP1911714A1 publication Critical patent/EP1911714A1/de
Application granted granted Critical
Publication of EP1911714B1 publication Critical patent/EP1911714B1/de
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    • 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 a traction type elevator apparatus, and more specifically, it relates to such a traction type elevator apparatus capable of improving the life time of a rope.
  • Fig. 4 is a longitudinal cross sectional view showing the construction of a known elevator apparatus of the traction type.
  • the known traction type elevator apparatus includes a cage 1, sheaves 1 a and 1b (not shown) (hereinafter referred to as lower cage guide wheels) rotatably mounted on the cage 1, a cage side top sheave 2 (hereinafter referred to as a cage side return wheel), a rope 3, a hoist gear 4, a traction sheave 4a, a weight side top sheave 5 (hereinafter referred to as a weight side return wheel), a weight 6, and a weight hanger wheel 6a rotatably mounted on the weight 6.
  • the known traction type elevator apparatus in which the hoist gear 4 is arranged in a pit portion below a hoist way, as shown in Fig. 4 is defective in that when water comes into the hoist way, the hoist gear 4 is submerged in water and hence it becomes necessary to replace the submerged hoist gear 4 with a new one. Otherwise, in order to make it possible to reuse the submerged hoist gear 4, it is required to provide a completely water-proof type hoist gear in advance, thus giving rise to a problem of increased production costs. In addition, if the hoist gear 4 is arranged at too high a location, there would arise another problem in that the life time of the rope 3 is shortened.
  • Fig. 5 is a longitudinal cross sectional view illustrating the construction of another known traction type elevator apparatus with a weight falling in a lateral direction.
  • this known traction type elevator apparatus with a laterally falling weight includes a cage 1, lower cage guide wheels 1a and 1b (not shown), a rope 3, a hoist gear 4, a traction sheave 4a, a weight 6, and a weight hanger wheel 6a.
  • the hoist gear 4 is arranged at an upper portion of a hoist way without using return wheels, so the rope 3 wrapped around the traction sheave 4a is caused to move to the lower cage guide wheel 1 a and the lower cage guide wheel 1b (not shown) in accordance with the traveling of the cage 4.
  • the life time of the rope 3 is extremely impaired.
  • Fig. 6 is a longitudinal cross sectional view illustrating the construction of a further known traction type elevator apparatus with a weight falling on a back side.
  • this known traction type elevator apparatus with a backwardly falling weight includes a cage 1, lower cage guide wheels 1a and 1b (not shown), a cage side return wheel 2, a rope 3, a hoist gear 4, a traction sheave 4a, a return wheel 5, a weight 6, and a weight hanger wheel 6a.
  • the hoist gear 4 is arranged at an upper portion of a hoist way, and the return wheel 5 is arranged below the hoist gear 4 in the very close vicinity thereof with the rope 3 being wrapped around them.
  • JP 2000 103 583 A Another example of a prior art elevator apparatus is disclosed in JP 2000 103 583 A .
  • the present invention is intended to obviate the problems as referred to above, and an object of the present invention is to ensure the life time of a hoist rope by arranging a hoist gear in a hoist way at a location above a surface of the lowermost or bottom floor in such a manner that a rope wrapped around a traction sheave of the hoist gear does not reach two or more return wheels arranged on a cage side and a weight side of the traction sheave.
  • an arrangement of the present invention is made to meet the following relation: TR ⁇ Hc + Sc + Hmc
  • TR represents the length of the vertical stroke of an elevator
  • Hc represents the distance from a cage side top sheave to a cage mounting sheave when a cage is at the uppermost or top floor
  • Sc represents the length of a rope wrapping portion of the cage side top sheave
  • Hmc represents the distance from the cage side top sheave to a hoist sheave.
  • TR represents the length of the vertical stroke of an elevator
  • Ho represents the distance from a weight side top sheave to a weight hanger wheel when a cage is at the lowermost or bottom floor
  • So represents the length of a rope wrapping portion of the weight side top sheave
  • Hmo represents the distance from the weight side top sheave to a hoist sheave.
  • the hoist sheave is arranged at a location above a surface of the lowermost floor, and the axis of said cage side top sheave is arranged at a location below a cage ceiling when said cage is at the uppermost floor.
  • the traction type elevator apparatus includes a cage 1, lower cage guide wheels 1 a and 1b (not shown), a cage side return wheel 2, a rope 3, a hoist gear 4, a traction sheave 4a, a weight side return wheel 5, a weight 6, and a weight hanger wheel 6a.
  • the hoist gear 4 is arranged at a location higher than the lowermost or bottom floor in a hoist way, so that if water comes into the hoist way, the water overflowing from a pit portion spreads into the outside from the bottom floor surface, thereby preventing the hoist gear 4 from being submerged in water.
  • the cage 1 is hung by the rope 3 which is wrapped around the guide wheels 1 a, 1 b and the cage side return wheel 2 arranged at the top of the hoist way. Further, the rope 3 extends from the hoist gear 4 arranged at a location higher than the lowermost floor surface so as to be wrapped around the hanger wheel 6a for the weight 6 through the weight side return wheel 5 arranged at the top of the hoist way.
  • a rope groove formed in the traction sheave 4a of the hoist gear 4 adopts a V shape or an under-cut shape so as to increase friction forces, and hence tends to shorten the life time of the rope 3 to from 1/2 to 1/3 times that of a rounded groove provided on the other return wheels.
  • the portion of the rope 3 whose life time is shortened in a state of the cage 1 lying on the uppermost or top floor is a length of stroke or movement of the rope 3 caused in a direction from the traction sheave 4a to the weight side return wheel 5 in accordance with a downward motion of the cage 1.
  • those portions of the rope 3 which extend from the cage side return wheel 2 to the lower cage guide wheels 1a, 1b pass through the three sheaves but the life spans of those portions are not reduced since the three sheaves have rounded grooves.
  • the position of the traction gear 4 be arranged or installed at a location above the lowermost floor surface in a range designated by the following expression: TR ⁇ Hc + Sc + Hmc
  • TR represents the length of the vertical stroke or travel of the elevator
  • Hc represents the distance from the cage side return sheave 2 to the lower cage guide wheel 1b when the cage 1 is at the uppermost or top floor
  • Sc represents the length of a rope wrapping portion of the cage side return wheel 2
  • Hmc represents the distance from the cage side return wheel 2 to the hoist gear 4.
  • the installation range of the traction gear 4 will be calculated using concrete figures.
  • the unit of measure is meter.
  • the height of the installation location Xd of the traction gear 4 from the lowermost floor is calculated as follows:
  • TR ⁇ Hc + Sc + TR + 2 - Xd ⁇ Xd ⁇ 2.5 + 0.6 + 2 5.1
  • the portion of the rope 3 wrapped around the traction sheave 4a of the traction gear 4 only reaches the cage side return wheel in the downward stroke of the cage, but not the lower cage guide wheel ahead thereof, thereby making it possible to improve the
  • Fig. 2 illustrates the case in which the cage 1 is located at the lowermost floor in the traction type elevator apparatus as shown in Fig. 1 .
  • the portion of the rope 3 whose life time is shortened is a length of stroke thereof extending in a direction from the traction sheave 4a to the cage return wheel, which reaches the traction sheave 4a in accordance with the upward motion of the cage 1.
  • the life time of the rope 3 is ensured or increased by reducing, as much as possible, the number of times that portion of the rope 3 which passes through the traction sheave 4a of the hoist gear 4 is applied to the other return wheels, and hence when considering a portion of the rope 3 which lies on the weight side from the hoist gear 4, it is preferred that the portion of the rope 3 is arranged within a range of the following expression: TR ⁇ Ho + So + Hmo where TR represents the length of the vertical stroke of the elevator; Ho represents the distance from the weight side return wheel 5 to the weight hanger wheel 6a when the cage 1 is at the lowermost or bottom floor; So represents the length of a rope wrapping portion of the weight side return wheel 5; and Hmo represents the distance from the weight side return wheel 5 to the hoist gear 4.
  • the range of installation of the traction gear 4 will be calculated by using concrete figures, as in the first embodiment.
  • the following figures are taken for example.
  • the unit of measure is meter.
  • TR 15
  • Ho 1
  • So 0.6
  • TR ⁇ Ho + So + TR + 2 - Xd ⁇ Xd ⁇ 1 + 0.6 + 2 3.6
  • the portion of the rope 3 wrapped around the traction sheave 4a of the traction gear 4 only reach the weight side return wheel in the upward stroke of the cage, but not the weight hanger wheel ahead thereof, thereby making it possible to improve the life time of the rope 3.
  • the traction type elevator apparatus includes a cage 1, lower cage guide wheels 1a and 1b, a cage side return wheel 2, a rope 3, a hoist gear 4, a traction sheave 4a, a weight 6, a weight hanger wheel 6a, and a lower return wheel 7.
  • Fig. 3 shows such an arrangement that the hoist gear 4 is arranged at the location of the weight side return wheel 5 in Fig. 2
  • the lower return wheel 7 is arranged at the location of the hoist gear 4 in Fig, 2 .
  • an elevator apparatus has a hoist gear and other return wheels arranged in consideration of the life time of a rope entrained therebetween, and hence is applicable to elevator apparatuses of the type using a hoist rope in general.

Landscapes

  • Engineering & Computer Science (AREA)
  • Civil Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Lift-Guide Devices, And Elevator Ropes And Cables (AREA)

Claims (6)

  1. Aufzugvorrichtung, dadurch gekennzeichnet, dass die folgende Beziehung begründet wird: TR ≤ Hc + Sc + Hmc
    Figure imgb0019
    wobei TR die Länge eines vertikalen Weg einer Kabine (1) bedeutet, Hc der Abstand von einer kabinenseitigen oberen Scheibe (2) zu einer kabinenfesten Scheibe (1a oder 1b) bedeutet, wenn sich die Kabine (1) an der obersten Ebene befindet, Sc die Länge eines Seilwickelabschnitts der kabinenseitigen oberen Scheibe (2) bedeutet, und Hmc der Abstand von der kabinenseitigen oberen Scheibe (2) zu einer Hebescheibe (4a) bedeutet, so dass ein durch die Hebescheibe (4a), die durch ein Heberitzel (4) angetrieben wird, wenn sich die Kabine (1) zwischen der obersten Ebene und der untersten Ebene bewegt, gelangender Abschnitt eines Hebeseils (3) eine an der Kabine (1) drehbar befestigte kabinenfeste Scheibe (1a oder 1b) nicht erreicht,
    wobei die Hebescheibe (4a) an einem Ort oberhalb einer Fläche der untersten Ebene angeordnet ist, und die Achse der kabinenseitigen oberen Scheibe (2) an einem Ort unterhalb einer Kabinendecke angeordnet ist, wenn sich die Kabine (1) an der obersten Ebene befindet.
  2. Aufzugvorrichtung, dadurch gekennzeichnet, dass die folgende Beziehung begründet wird: TR ≤ Ho + So + Hmo
    Figure imgb0020
    wobei TR die Länge eines vertikalen Weges einer Kabine (1) bedeutet, Ho der Abstand von einer gewichtsseitigen oberen Scheibe (5) zu einem Gewichtsaufhängerad (6a) bedeutet, wenn sich die Kabine (1) an einer untersten Ebene befindet, So die Länge eines Seilwickelabschnitts der gewichtsseitigen oberen Scheibe (5) bedeutet, und Hmo der Abstand von der gewichtsseitigen oberen Scheibe (5) zu einer Hebescheibe (4a) bedeutet, so dass ein durch die Hebescheibe (4a), die durch ein Heberitzel (4) angetrieben wird, wenn sich die Kabine (1) zwischen der obersten Ebene und der untersten Ebene bewegt, gelangender Abschnitt eines Hebeseils (3) ein an einem Gewicht (6) drehbar befestigtes Gewichtsaufhängrad (6a) nicht erreicht,
    wobei die Hebescheibe (4a) an einem Ort oberhalb einer Fläche der untersten Ebene angeordnet ist, und die Hebescheibe (4a) an einem Ort oberhalb einer unteren Endfläche des Gewichts (6) angeordnet ist, wenn sich die Kabine (1) an der obersten Ebene befindet.
  3. Aufzugvorrichtung gemäß Anspruch 1, dadurch gekennzeichnet, dass die kabinenfeste Scheibe (1 oder 1a) an einem Ort unterhalb der Kabine (1) angeordnet ist.
  4. Aufzugvorrichtung gemäß einem der Ansprüche 1-3, dadurch gekennzeichnet, dass eine in der Hebescheibe (4a) ausgebildete Nut V-förmig oder kerbenförmig ist.
  5. Aufzugvorrichtung gemäß Anspruch 2, dadurch gekennzeichnet, dass die folgende Beziehung begründet wird: X d > Ho
    Figure imgb0021
    wobei Ho der Abstand von der gewichtsseitigen oberen Scheibe (5) zum Gewichtsaufhängrad (6a) bedeutet, und X d der Abstand von der untersten Ebenen-Fläche zur Hebescheibe (4a) bedeutet, wenn sich die Kabine (1) an der obersten Ebene befindet.
  6. Aufzugvorrichtung, dadurch gekennzeichnet, dass die folgende Beziehung begründet wird: TR ≤ Ho + So + Hmo
    Figure imgb0022
    wobei TR die Länge eines vertikalen Weges einer Kabine (1) bedeutet, Ho der Abstand von einer gewichtsseitigen oberen Scheibe (5) zu einem Gewichtsaufhängrad (6a) bedeutet, wenn sich die Kabine (1) an einer untersten Ebene befindet, So die Länge eines Seilwickelabschnitts der gewichtsseitigen oberen Scheibe (5) bedeutet, und Hmo der Abstand von der gewichtsseitigen oberen Scheibe (5) zu einer Hebescheibe (4a) bedeutet, so dass ein durch die Hebescheibe (4a), die durch ein Heberitzel (4) angetrieben wird, wenn sich die Kabine (1) zwischen der obersten Ebene und der untersten Ebene bewegt, gelangender Abschnitt eines Hebeseils (3) ein an einem Gewicht (6) drehbar befestigtes Gewichtsaufhängerad (6a) nicht erreicht,
    wobei die Hebescheibe (4a) an einem Ort oberhalb einer Fläche der untersten Ebene angeordnet ist, und die Achse der kabinenseitigen oberen Scheibe (2) an einem Ort unterhalb einer Kabinendecke angeordnet ist, wenn sich die Kabine (1) an der obersten Ebene befindet.
EP08000356A 2000-05-22 2000-05-22 Aufzugsvorrichtung Expired - Lifetime EP1911714B1 (de)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP08000356A EP1911714B1 (de) 2000-05-22 2000-05-22 Aufzugsvorrichtung
DE60043599T DE60043599D1 (de) 2000-05-22 2000-05-22 Aufzugsvorrichtung

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
PCT/JP2000/003240 WO2001089976A1 (fr) 2000-05-22 2000-05-22 Dispositif elevateur
EP08000356A EP1911714B1 (de) 2000-05-22 2000-05-22 Aufzugsvorrichtung
EP00927821A EP1308411B1 (de) 2000-05-22 2000-05-22 Aufzugsvorrichtung

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
EP00927821A Division EP1308411B1 (de) 2000-05-22 2000-05-22 Aufzugsvorrichtung

Publications (2)

Publication Number Publication Date
EP1911714A1 EP1911714A1 (de) 2008-04-16
EP1911714B1 true EP1911714B1 (de) 2009-12-23

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EP00927821A Expired - Lifetime EP1308411B1 (de) 2000-05-22 2000-05-22 Aufzugsvorrichtung
EP08000356A Expired - Lifetime EP1911714B1 (de) 2000-05-22 2000-05-22 Aufzugsvorrichtung

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EP00927821A Expired - Lifetime EP1308411B1 (de) 2000-05-22 2000-05-22 Aufzugsvorrichtung

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EP (2) EP1308411B1 (de)
JP (1) JP4896339B2 (de)
CN (1) CN1206152C (de)
DE (1) DE60043599D1 (de)
WO (1) WO2001089976A1 (de)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1206152C (zh) * 2000-05-22 2005-06-15 三菱电机株式会社 电梯装置
WO2015029753A1 (ja) * 2013-08-29 2015-03-05 三菱電機株式会社 エレベーターロープ寿命診断装置
JP6579736B2 (ja) * 2014-08-12 2019-09-25 三菱電機株式会社 機械室レスエレベータの改修方法及び機械室レスエレベータ
JP2016079010A (ja) * 2014-10-21 2016-05-16 三菱電機株式会社 機械室レスエレベータの改修方法

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0631145B2 (ja) * 1986-04-01 1994-04-27 三菱電機株式会社 エレベ−タ装置
FR2640949B1 (de) * 1988-12-22 1991-03-15 Otis Elevator Co
FI98209C (fi) * 1994-05-04 1997-05-12 Kone Oy Vetopyörähissi, nostoyksikkö ja koneistotila
FI100791B (fi) * 1995-06-22 1998-02-27 Kone Oy Vetopyörähissi
FI100793B (fi) * 1995-06-22 1998-02-27 Kone Oy Vetopyörähissi
EP1097101B1 (de) * 1998-02-26 2007-05-30 Otis Elevator Company Aufzugssystemmit am untererem teil des schachtes angeordnetem antrieb
JP3800832B2 (ja) * 1998-09-28 2006-07-26 フジテック株式会社 エレベータ装置
JP2000103582A (ja) * 1998-09-30 2000-04-11 Hitachi Ltd トラクションエレベータ
JP4129901B2 (ja) * 1999-08-03 2008-08-06 ナブテスコ株式会社 エレベータ装置
CN1285498C (zh) * 1999-12-06 2006-11-22 三菱电机株式会社 电梯装置
JP2001163544A (ja) * 1999-12-13 2001-06-19 Nippon Building Technos:Kk ロープ式エレベータ
JP2001226056A (ja) * 2000-02-10 2001-08-21 Mitsubishi Electric Corp エレベータ装置
CN1206152C (zh) * 2000-05-22 2005-06-15 三菱电机株式会社 电梯装置
JP3991657B2 (ja) * 2001-11-15 2007-10-17 株式会社日立製作所 エレベータ

Also Published As

Publication number Publication date
CN1206152C (zh) 2005-06-15
EP1308411A4 (de) 2006-05-10
DE60043599D1 (de) 2010-02-04
EP1308411B1 (de) 2011-05-18
EP1308411A1 (de) 2003-05-07
EP1911714A1 (de) 2008-04-16
WO2001089976A1 (fr) 2001-11-29
CN1361746A (zh) 2002-07-31
JP4896339B2 (ja) 2012-03-14

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