EP1172321B1 - Elevator device - Google Patents

Elevator device Download PDF

Info

Publication number
EP1172321B1
EP1172321B1 EP00904099A EP00904099A EP1172321B1 EP 1172321 B1 EP1172321 B1 EP 1172321B1 EP 00904099 A EP00904099 A EP 00904099A EP 00904099 A EP00904099 A EP 00904099A EP 1172321 B1 EP1172321 B1 EP 1172321B1
Authority
EP
European Patent Office
Prior art keywords
car
driving machine
handrail
raising
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.)
Expired - Lifetime
Application number
EP00904099A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1172321A1 (en
EP1172321A4 (en
Inventor
Yoshikatsu Hayashi
Shigeki Yamakawa
Makoto Tomidokoro
Shuki Hamaguchi
Susumu Morita
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 EP1172321A1 publication Critical patent/EP1172321A1/en
Publication of EP1172321A4 publication Critical patent/EP1172321A4/en
Application granted granted Critical
Publication of EP1172321B1 publication Critical patent/EP1172321B1/en
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

Definitions

  • the present invention relates to an elevator apparatus, more specifically a so called machine-room-less elevator apparatus that does not have a separate machine room at an upper portion of a hoistway.
  • Fig. 10 is a perspective view showing an essential portion of a conventional elevator apparatus such as disclosed in Japanese Patent No. 2593288
  • Fig. 11 is a plan view showing the elevator apparatus in Fig. 10 .
  • a pair of car guide rails 2 and a pair of counterweight guide rails 3 are installed in a hoistway 1.
  • a driving machine 4 having a traction sheave 5 is disposed at an upper portion in the hoistway 1.
  • a middle portion of a main rope 6 is wound around the traction sheave 5.
  • One end portion 6a of the main rope 6 is fixed to an upper end portion of the car guide rail 2, and the other end portion 6b of the main rope 6 is fixed to an upper end portion of the counterweight guide rails 3.
  • a car 7 is suspended by the main rope 6 between the traction sheave 5 and one end portion 6a.
  • a pair of car suspending sheaves 8 around which the main rope 6 is wound are provided at a lower end portion of the car 7.
  • a counterweight 9 is suspended by the main rope 6 between the traction sheave 5 and the other end portion 6b.
  • a counterweight suspending sheave 10 around which the main rope 6 is wound is provided at an upper end portion of the counterweight 9.
  • the driving machine 4 is disposed between an area on which the car 7 is vertically projected and a wall surface 1a of the hoistway 1, thereby omitting a machine room.
  • JP 11 157 762A discloses an elevator apparatus comprising a combination of features falling within the scope of the preamble of Claim 1.
  • an elevator apparatus comprising: a hoistway; a car and a counterweight configured to be alternately raised and lowered in said hoistway; a main rope suspending said car and said counterweight in said hoistway; and a driving machine disposed at an upper portion in said hoistway and arranged for raising and lowering said car and said counterweight through said main rope, said driving machine having a motor and a traction sheave arranged to be directly rotated by said motor, said main rope being wound around said traction sheave, wherein a portion of said driving machine is disposed inside an area on which said car is projected in its raising and lowering direction, characterised in that: a handrail assembly is provided on the top portion of said car, arranged to project in the raising and lowering direction of said car to surround an area for performing maintenance; the handrail assembly including: a fixed handrail fixed on a top portion of said car and a movable handrail provided on the top portion of said car and being movable between an expanded position passing through
  • Embodiments of the present invention can solve the problems mentioned above in respect of the prior art, and can provide an elevator apparatus which can reduce the planar size of the hoistway.
  • Fig. 1 is a perspective view showing an essential portion of an elevator apparatus according to a first explanatory embodiment and Fig. 2 is a plan view showing the elevator apparatus in Fig. 1 .
  • a pair of car guide rails 2 and a pair of counterweight guide rails 3 are installed in a hoistway 1.
  • a driving machine 13 having a motor 11 and a traction sheave 12 is disposed at an upper portion in the hoistway 1.
  • the driving machine 13 is a gear-less type where the traction sheave 12 is directly rotated by the motor 11.
  • the driving machine shown in, for example, Japanese Patent Application Laid-Open No. Hei 7-187187 may be used as this gear-less type of the driving machine 13.
  • a middle portion of a main rope 6 is wound around the traction sheave 12.
  • One end portion 6a of the main rope 6 is fixed in relation to an upper end portion of the car guide rail 2, and the other end portion 6b of the main rope 6 is fixed in relation to an upper end portion of the counterweight guide rail 3.
  • a car 7 is suspended by the main rope 6 between the traction sheave 12 and one end portion 6a.
  • a pair of car suspending sheaves 8 around which the main rope 6 is wound is provided at a lower end portion of the car 7.
  • a counterweight 9 is suspended by the main rope 6 between the traction sheave 12 and the other end portion 6b.
  • a counterweight suspending sheave 10 around which the main rope 6 is wound is provided at an upper end portion of the counterweight 9.
  • a handrail 14 used during maintenance operations is provided on a top portion of the car 7.
  • the driving machine 13 is supported by, for example, the guide rails 2 and 3 above the raising and lowering area of the car 7. Furthermore, a portion of the driving machine 13 is disposed inside the area on which the car 7 is projected in the raising and lowering direction.
  • the driving machine 13 is disposed to be inclined with respect to the wall surface 1a due to the restriction of the layout of the main rope 6, it is also possible, for example, as shown in Fig. 3 for the driving machine 13 to be disposed so that the rotation axis of the traction sheave 12 is perpendicular to the wall surface 1a by providing a deflection pulley 15 at the upper portion in the hoistway 1 and winding the main rope 6 around the deflection pulley 15, thereby further decreasing the distance between the wall surface 1a and the car 7 and further reducing the planer size of the hoistway 1.
  • Fig. 4 is a plan view showing an elevator apparatus according to a third explanatory embodiment.
  • the counterweight 9 is disposed behind the car 7.
  • the driving machine 13 is obliquely disposed above a corner portion of the car 7. Therefore, the distance between the wall surface 1a and the car 7 can be decreased. Also, a corner portion 14a of the handrail 14 is separated from the corner portion of the car 7, thereby preventing it from interfering with the driving machine 13.
  • Fig. 5 is a plan view showing an elevator apparatus according to a fourth explanatory embodiment.
  • a deflector sheave 17 is provided at the upper portion in the hoistway.
  • the portion of the main rope 6 between the traction sheave 12 and the counterweight suspending sheave 10 is wound around the deflector sheave 17. Therefore, the driving machine 13 is disposed so that the rotation axis of the traction sheave 12 is parallel with the width direction of the car 7 (right and left direction in the figure).
  • the portion of the driving machine 13 can be disposed above the car 7 by providing the deflector sheave 17. That is, it is possible to sufficiently respond to the change of the dimension between the car 7 and the counterweight 9, thereby improving the degree of freedom of the layout.
  • Fig. 6 is an explanatory view showing the relationship between the driving machine and the handrail in the elevator apparatus shown in Figs. 1 to 5 .
  • the handrail 14 is disposed more to the inside of the car 7 than the driving machine 13. Also, the handrail 14 is disposed so as not to interfere with the driving machine 13 even when the counterweight 9 collides against a buffer (not shown) disposed at the bottom portion of the hoistway 1 and the car jumps up to the position of the broken line in the figure. Accordingly, the height dimension H of the top clearance can be reduced.
  • the handrail 14 is erected on the top portion of the car 7, it is also possible, for example, as shown in Fig. 7 for the handrail 14 to be foldable (or pivotable) so it can be folded down while not in use.
  • the height of the peripheral portion 7a of the car 7 may be lowered because the ceiling light 16 is not provided on the peripheral portion 7a. Therefore, the car 7 can be more surely prevented from interfering with the driving machine 13 by sufficiently securing the clearance between the peripheral portion 7a and the driving machine 13 when the car 7 jumps up.
  • Fig. 8 is a plan view showing an elevator apparatus according to an embodiment of the present invention
  • Fig. 9 is a side view showing an essential portion of the elevator apparatus in Fig. 8
  • a driving machine 21 for raising and lowering the car 7 is disposed at the upper portion of the hoistway 1. Further, at least one portion (greater portion in actual use) is disposed inside the area on which the car is projected in the raising and lowering direction.
  • a fixed handrail 22 is fixed to the top portion of the car 7.
  • a movable handrail 23 which is capable of reciprocating in the right and left direction in Fig. 8 is connected to the fixed handrail 22.
  • the movable handrail 23 is movable between an expanded position A passing through a driving machine projecting area on which the driving machine 21 is projected in the raising and lowering direction of the car 7 and a storage position B outside the driving machine projecting area.
  • the fixed handrail 22 and the movable handrail 23 act as safety fences for maintenance operations.
  • a handrail detecting switch 24 for detecting the position of the movable handrail 23 is provided between the fixed handrail 22 and the movable handrail 23.
  • the handrail detecting switch 24 is connected with a controller 25 for controlling the driving of the elevator apparatus.
  • the controller 25 is shown as a block diagram. The controller 25 restricts the raising range of the car 7 according to the information from the handrail detecting switch 24.
  • a collision avoidance switch device 26 for stopping the raising of the car 7 by being contacted is provided at the lower portion of the driving machine 21.
  • the collision avoidance switch device 26 has a plurality of attachment fittings 27, a contact body 28 supported by the attachment fittings 27 to be capable of moving up and down, a plurality of links 29 connecting the contact body 28 with the attachment fittings 27, and a contact detecting switch 30 being operated by the upward movement of the contact body 28.
  • the handrail detecting switch 24 is energized, and the car can be operated at a rated speed with fully automatic operation. Also, when the car 7 is stopped at the uppermost landing floor, the movable handrail 23 will not interfere with the driving machine 21.
  • the handrail detecting switch 24 is de-energized, the raising range of the car 7 is restricted, and the movable handrail 23 is more surely prevented from interfering with the driving machine 21.
  • movable handrail 23 is slid in the right and left direction in Fig. 9 , it is also possible, for example, for the movable handrail 23 to be pivoted about a connecting portion, as an axis, for connecting to the fixed handrail 22.

Landscapes

  • Engineering & Computer Science (AREA)
  • Civil Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Cage And Drive Apparatuses For Elevators (AREA)
  • Catching Or Destruction (AREA)
  • Maintenance And Inspection Apparatuses For Elevators (AREA)
EP00904099A 2000-02-22 2000-02-22 Elevator device Expired - Lifetime EP1172321B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2000/001008 WO2001062654A1 (fr) 2000-02-22 2000-02-22 Dispositif elevateur

Publications (3)

Publication Number Publication Date
EP1172321A1 EP1172321A1 (en) 2002-01-16
EP1172321A4 EP1172321A4 (en) 2006-04-19
EP1172321B1 true EP1172321B1 (en) 2009-01-21

Family

ID=11735706

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00904099A Expired - Lifetime EP1172321B1 (en) 2000-02-22 2000-02-22 Elevator device

Country Status (4)

Country Link
EP (1) EP1172321B1 (ja)
CN (1) CN1178843C (ja)
DE (1) DE60041439D1 (ja)
WO (1) WO2001062654A1 (ja)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4849712B2 (ja) * 2000-11-08 2012-01-11 東芝エレベータ株式会社 エレベータ
KR100697487B1 (ko) * 2002-06-21 2007-03-20 미쓰비시덴키 가부시키가이샤 엘리베이터 장치
JP4270831B2 (ja) * 2002-09-24 2009-06-03 東芝エレベータ株式会社 マシンルームレスエレベータ
ITFI20030037A1 (it) * 2003-02-12 2004-08-13 Perini Fabio Spa Macchina piegatrice per la produzione di manufatti in foglio,
JP4397896B2 (ja) * 2004-02-16 2010-01-13 三菱電機株式会社 エレベータ装置
US8172041B2 (en) 2004-06-01 2012-05-08 Toshiba Elevator Kabushiki Kaisha Machine room-less elevator
DE602005006386T2 (de) 2005-04-01 2009-05-20 Cargotec Patenter Ab Mehrstufiger Teleskopausleger.
JP2007246194A (ja) * 2006-03-14 2007-09-27 Toshiba Elevator Co Ltd マシンルームレスエレベータ
JP2010184791A (ja) * 2009-02-13 2010-08-26 Toshiba Elevator Co Ltd エレベータ
CN101955107A (zh) * 2009-07-14 2011-01-26 上海德圣米高电梯有限公司 一种改进的船用电梯
JP2015037984A (ja) * 2013-03-07 2015-02-26 東芝エレベータ株式会社 エレベータシステム
JP5858944B2 (ja) * 2013-03-07 2016-02-10 東芝エレベータ株式会社 エレベータシステム
CN105452141B (zh) * 2013-07-22 2018-04-03 三菱电机株式会社 电梯装置
WO2016174710A1 (ja) * 2015-04-27 2016-11-03 三菱電機株式会社 エレベータ装置
JP6395975B2 (ja) 2016-04-12 2018-09-26 三菱電機株式会社 エレベータ装置
WO2018198232A1 (ja) * 2017-04-26 2018-11-01 三菱電機株式会社 エレベータ装置
CN109110618A (zh) * 2018-10-12 2019-01-01 苏州福特美福电梯有限公司 一种带广告投放功能的公用电梯
WO2020100306A1 (ja) * 2018-11-16 2020-05-22 三菱電機株式会社 エレベーター

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS483961Y1 (ja) * 1967-04-14 1973-01-31
JPH0649577Y2 (ja) * 1987-11-27 1994-12-14 株式会社日立ビルシステムサービス エレベータの保守運転装置
DE59709841D1 (de) * 1996-11-11 2003-05-22 Inventio Ag Aufzugsanlage mit im Aufzugsschacht angeordneter Antriebseinheit
JP4145977B2 (ja) * 1997-09-26 2008-09-03 東芝エレベータ株式会社 エレベータ
JP4255523B2 (ja) * 1997-10-06 2009-04-15 東芝エレベータ株式会社 エレベーター
DE59703245D1 (de) * 1997-11-28 2001-05-03 Thyssen Aufzugswerke Gmbh Aufzug, insbesondere Treibscheibenaufzug

Also Published As

Publication number Publication date
DE60041439D1 (de) 2009-03-12
EP1172321A1 (en) 2002-01-16
WO2001062654A1 (fr) 2001-08-30
EP1172321A4 (en) 2006-04-19
CN1178843C (zh) 2004-12-08
CN1348427A (zh) 2002-05-08

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