EP1900673A1 - Spannscheibenvorrichtung für aufzugsleitseil - Google Patents

Spannscheibenvorrichtung für aufzugsleitseil Download PDF

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Publication number
EP1900673A1
EP1900673A1 EP05758247A EP05758247A EP1900673A1 EP 1900673 A1 EP1900673 A1 EP 1900673A1 EP 05758247 A EP05758247 A EP 05758247A EP 05758247 A EP05758247 A EP 05758247A EP 1900673 A1 EP1900673 A1 EP 1900673A1
Authority
EP
European Patent Office
Prior art keywords
tension
governor rope
sheave
tension sheave
wedge
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Withdrawn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
EP05758247A
Other languages
English (en)
French (fr)
Other versions
EP1900673A4 (de
Inventor
Mineo c/o Mitsubishi Denki Kabushiki Kaisha OKADA
Daiki c/o Mitsubishi Denki Kabushiki Kaisha FUKUI
Takeshi c/o Mitsubishi Denki K. K. NIIKAWA
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 EP1900673A1 publication Critical patent/EP1900673A1/de
Publication of EP1900673A4 publication Critical patent/EP1900673A4/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Withdrawn legal-status Critical Current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
    • B66B7/00—Other common features of elevators
    • B66B7/06—Arrangements of ropes or cables
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
    • B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
    • B66B5/04—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions for detecting excessive speed
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
    • B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
    • B66B5/16—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well
    • B66B5/18—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well and applying frictional retarding forces

Definitions

  • the present invention relates to a tension sheave device for an elevator governor rope for imparting tension to a governor rope moved with a car.
  • a tension sheave and a weight are suspended by the governor rope in order to impart tension to the governor rope.
  • the governor rope is looped around the tension sheave, and the weight is mounted to the tension sheave.
  • a fixation member is mounted by rail clips to car guide rails for guiding the ascent and descent of the car.
  • the fixation member is provided with an arm member rotatable around a shaft.
  • the tension sheave is provided at the distal end of the arm member.
  • a plurality of teeth are formed at the proximal end of the arm close to the shaft.
  • the fixation member is equipped with a pawl to be engaged with the teeth formed on the arm member. Only when the arm member is upwardly rotated, the pawl is engaged with the teeth. With this construction, downward rotation of the arm member is permitted, and upward rotation of the arm member is prevented. In this way, the tension sheave is prevented from rising, and the tension imparted to the governor rope is maintained (see Patent Document 1).
  • Patent Document 1 JP 2002-179361 A
  • the arm member is allowed to upwardly rotate until a tooth is engaged with the pawl, with the result that the tension sheave is allowed to rise.
  • the tension sheave is allowed to rise.
  • the passenger in the car performs an action, such as moving about
  • the car may vibrate in the vertical direction.
  • the tension imparted to the governor rope is rather low, so rolling is generated in the governor rope.
  • the rotating speed of the governor sheave around which the governor rope is looped also fluctuates.
  • the present invention has been made with a view toward solving the above problems in the prior art. It is therefore an object of the present invention to provide a tension sheave device for an elevator governor rope capable of preventing the tension sheave from rising to prevent an abrupt reduction in the magnitude of the tension imparted to the governor rope.
  • a tension sheave device for an elevator governor rope includes: a tension sheave around which a governor rope moved with a car is looped and which is suspended by the governor rope; a rotating member which is rotatably provided on a support member provided in a hoistway, on which the tension sheave is rotatably provided, and which is rotated with respect to the support member through vertical displacement of the tension sheave; a regulating member which is provided on the support member and which makes the distance between the regulating member and the rotating member smaller through rotation of the rotating member in a direction in which the tension sheave is upwardly displaced; a wedge which is provided with a first contact surface in contact with the rotating member and a second contact surface sloped with respect to the first contact surface and in contact with the regulating member and which is inserted into a gap between the rotating member and the regulating member and is capable of being displaced with respect to the rotating member and the regulating member; and an urging member urging the wedge so that the wedge enlarges by pushing the
  • Fig. 1 is a schematic view of an elevator according to Embodiment 1 of the present invention.
  • a hoistway 1 installed in a hoistway 1 are a pair of guide rails 2 and a pair of counterweight guide rails (not shown).
  • a car 3 is arranged between the guide rails 2.
  • a counterweight 4 is arranged between the counterweight guide rails.
  • a machine room 5 is provided in the top portion of the hoistway 1.
  • Installed in the machine room 5 are a hoisting machine (driving machine) 6 for causing the car 3 and the counterweight 4 to ascend and descend within the hoistway 1 and a deflector sheave 7 arranged so as to be spaced apart from the hoisting machine 6.
  • the hoisting machine 6 has a driving machine main body 8 including a motor and a brake device, and a driving sheave 9 rotated by the driving machine main body 8.
  • a plurality of main ropes 10 are looped around the driving sheave 9 and the deflector sheave 7.
  • the car 3 and the counterweight 4 are suspended within the hoistway 1 by the main ropes 10.
  • the car 3 is caused to ascend and descend within the hoistway 1 by the driving force of the hoisting machine 6 while guided by the car guide rails 2.
  • the counterweight 4 is caused to ascend and descend within the hoistway 1 by the driving force of the hoisting machine 6 while guided by the counterweight guide rails.
  • a speed governor 11 for detecting the speed of the car 3.
  • the speed governor 11 has a governor main body 12 and a governor sheave 13 rotatable with respect to the governor main body 12.
  • a control device 14 for controlling the operation of the elevator is electrically connected to the speed governor 11 and the hoisting machine 6.
  • the control device 14 is installed within the machine room 5.
  • a safety device 15 for forcibly stopping the movement of the car 3 is mounted on the car 3.
  • a governor rope 16 is looped around the governor sheave 13.
  • One and the other end of the governor rope 16 are connected to the safety device 15 through the intermediation of an operating lever 17.
  • the governor rope 16 is moved with the car 3, and the governor sheave 13 is rotated with the movement of the car 3.
  • the governor main body 12 When the rotating speed of the governor sheave 13 attains a first set overspeed (which is approximately 1.3 times the rated speed), the governor main body 12 supplies a stop signal to the control device 14. Further, when the rotating speed of the governor sheave 13 attains a second set overspeed (which is approximately 1.4 times the rated speed) higher than the first set speed, the governor main body 12 grasps the governor rope 16.
  • the control device 14 Upon receiving the stop signal from the governor main body 12, the control device 14 stops the motor of the hoisting machine 6 and operates the brake device.
  • the safety device 15 is adapted to be operated when the governor rope 16 is grasped by the governor main body 12 and the operating lever 17 is displaced with respect to the car 3. The movement of the car 3 is forcibly stopped through the operation of the safety device 15.
  • tension sheave device 18 for the governor rope (hereinafter, simply referred to as “tension sheave device") 18 for imparting tension to the governor rope 16.
  • tension sheave device 18 is mounted to one of the car guide rails 2.
  • Fig. 2 is a front view of the tension sheave device 18 of Fig. 1 .
  • Fig. 3 is a sectional view taken along the line III-III of Fig. 2 .
  • a support plate (support member) 19 for supporting the tension sheave device 18 is mounted to the car guide rail 2 by rail clips 20.
  • an arm (rotating member) 22 rotatable around a support shaft 21 extending horizontally.
  • a tension sheave 23 around which the governor rope 16 is looped.
  • the tension sheave 23 is rotatable around a rotation shaft 24 which is parallel to the support shaft 21.
  • the arm 22 is rotated around the support shaft 21 through vertical displacement of the tension sheave 23.
  • the tension sheave 23 is rotated around the rotation shaft 24 through movement of the governor rope 16.
  • the rotation shaft 24 is provided with a weight 26 through the intermediation of a suspension member 25. The tension sheave 23 and the weight 26 are suspended by the governor rope 16.
  • a protruding pin (regulating member) 27 protruding from the support plate 19.
  • the protruding pin 27 is arranged above the arm 22. Further, the protruding pin 27 is arranged on the tension sheave 23 side of the support shaft 21 with respect to the horizontal direction. That is, the distance between the protruding pin 27 and the arm 22 is reduced through rotation of the arm 22 in the direction of upward displacement of the tension sheave 23.
  • a sliding surface 28 On the protruding pin 27 side portion of the arm 22, there is provided a sliding surface 28 extending in the longitudinal direction of the arm 22. Between the arm 22 and the protruding pin 27, there is inserted a wedge 29 capable of displacement with respect to the arm 22 and the protruding pin 27.
  • the wedge 29 is provided with a first contact surface 30 in contact with the sliding surface 28 and a second contact surface 31 in contact with the protruding pin 27.
  • the second contact surface 31 is sloped with respect to the first contact surface 30.
  • the wedge 29 is inserted into the gap between the arm 22 and the protruding pin 27, with the first contact surface 30 in contact with the sliding surface 28 and the second contact surface 31 in contact with the protruding pin 27.
  • a wedge side spring peg 32 is fixed to the wedge 29.
  • a support plate side spring peg 33 is fixed to the support plate 19.
  • a tension spring (urging member) 34 biased in the contracting direction.
  • the wedge 29 is urged by the tension spring 34 so as to enlarge by pushing the distance between the arm 22 and the protruding pin 27.
  • the arm 22 is urged so as to be rotated in the direction of downward displacement of the tension sheave 23.
  • a predetermined frictional force is generated between the first contact surface 30 and the sliding surface 28 and between the second contact surface 31 and the protruding pin 27.
  • Fig. 4 is a front view of the tension sheave device 18 when the tension sheave 23 of Fig. 2 has been downwardly displaced.
  • the tension sheave 23 is downwardly displaced as a result, for example, of expansion of the governor rope 16
  • the arm 22 is rotated, and the distance between the arm 22 and the protruding pin 27 is enlarged.
  • the wedge 29 is displaced so as to be forced into the gap between the arm 22 and the protruding pin 27 while being held in contact with the arm 22 and the protruding pin 27 due to the urging by the tension spring 34. Since a predetermined frictional force is generated between the first contact surface 30 and the sliding surface 28 and between the second contact surface 31 and the protruding pin 27, the wedge 29 is prevented from being pushed back, thus preventing upward displacement of the tension sheave 23.
  • the wedge 29 is constantly urged by the tension spring 34 so as to enlarge the distance between the arm 22 and the protruding pin 27. In this state, tension is imparted to the governor rope 16.
  • Fig. 5 is a schematic view showing the state of the elevator of Fig. 1 when the vertically vibrating car 3 has been displaced to the lowermost point of the amplitude.
  • Fig. 6 is a schematic view showing the state of the elevator of Fig. 5 when the vertically vibrating car 3 has been displaced to the uppermost point of the amplitude.
  • the governor rope 16 is repeatedly moved in the vertical direction in conformity with the vibration of the car 3.
  • the respective rotating directions of the governor sheave 13 and the tension sheave 23 are also repeatedly reversed in conformity with the vertical movement of the governor rope 16.
  • the wedge 29 is inserted into the gap between the arm 22, which is rotated with respect to the support plate 19 through vertical displacement of the tension sheave 23 suspended by the governor rope 16, and the protruding pin 27 provided on the support plate 19 and making the distance between itself and the arm 22 smaller through upward displacement of the tension sheave 23, and the wedge 29 is urged by the tension spring 34 so as to enlarge the distance between the arm 22 and the protruding pin 27, so it is possible to constantly urge the tension sheave 23 downwards. Further, since the wedge 29 is forced into the gap between the arm 22 and the protruding pin 27, it is possible to prevent the arm 22 from rotating toward the protruding pin 27.
  • the protruding pin 27 is arranged above the arm 22, it is possible to arrange the protruding pin 27 between the support shaft 21 and the tension sheave 23 with respect to the horizontal direction, making it possible to reduce the length of the arm 22. As a result, it is possible to achieve a reduction in material cost and space saving.
  • the protruding pin 27 is arranged above the arm 22, it is also possible to arrange the protruding pin 27 below the arm 22. In this case, the protruding pin 27 is arranged so as to be more spaced apart from the tension sheave 23 than the support shaft 21. In this arrangement also, it is possible for the gap between the protruding pin 27 and the arm 22 to be reduced when the arm 22 is rotated so as to upwardly displace the tension sheave 23, and it is possible to prevent upward displacement of the tension sheave 23 by forcing the wedge 29 into the gap between the protruding pin 27 and the arm 22.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
EP05758247.0A 2005-07-05 2005-07-05 Spannscheibenvorrichtung für aufzugsleitseil Withdrawn EP1900673A4 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2005/012391 WO2007004293A1 (ja) 2005-07-05 2005-07-05 エレベータ用調速機ロープの張り車装置

Publications (2)

Publication Number Publication Date
EP1900673A1 true EP1900673A1 (de) 2008-03-19
EP1900673A4 EP1900673A4 (de) 2013-07-24

Family

ID=37604173

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05758247.0A Withdrawn EP1900673A4 (de) 2005-07-05 2005-07-05 Spannscheibenvorrichtung für aufzugsleitseil

Country Status (5)

Country Link
EP (1) EP1900673A4 (de)
JP (1) JPWO2007004293A1 (de)
KR (1) KR100874299B1 (de)
CN (1) CN101014523B (de)
WO (1) WO2007004293A1 (de)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2253571A1 (de) 2009-05-20 2010-11-24 Inventio AG Aufzugsspannvorrichtung und Aufzugsanlage mit einer solchen Aufzugsspannvorrichtung
EP2338822A1 (de) 2009-12-23 2011-06-29 Inventio AG Aufzuganlage mit Geschwindigkeitsbegrenzungseinrichtung
EP2636628A1 (de) 2012-03-09 2013-09-11 ThyssenKrupp Aufzugswerke GmbH Spannvorrichtung für ein Zugmittel einer Aufzuganlage
WO2015155854A1 (ja) * 2014-04-09 2015-10-15 三菱電機株式会社 エレベータ装置
US10654685B2 (en) 2014-08-01 2020-05-19 Otis Elevator Company Car mounted governor for an elevator system
US11738971B2 (en) 2021-06-25 2023-08-29 Otis Elevator Company Elevator governor tension frame damper

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103189295B (zh) * 2010-11-05 2015-07-08 三菱电机株式会社 电梯
JP6197802B2 (ja) * 2015-02-02 2017-09-20 三菱電機ビルテクノサービス株式会社 ロックダウン装置保持工具及び釣合車装置の位置調整方法
KR101647788B1 (ko) 2015-11-23 2016-08-11 (주)미주하이텍 엘리베이터 조속기의 텐션 유지 관리 시스템
JP6510448B2 (ja) * 2016-03-10 2019-05-08 株式会社日立製作所 エレベーター装置
CN106904507A (zh) * 2017-04-05 2017-06-30 宁波宏大电梯有限公司 一种张紧力恒定的弹簧式限速器张紧装置
CN109650212B (zh) * 2019-01-21 2021-06-08 日立电梯（中国）有限公司 安全保护装置、电梯安全控制方法及电梯

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5019139A (de) 1972-07-20 1975-02-28
JP2002179361A (ja) 2000-12-19 2002-06-26 Toshiba Elevator Co Ltd エレベータのガバナテンショナ装置
CN2538759Y (zh) * 2001-12-26 2003-03-05 宁波欣达电梯配件厂 下置式限速器
CN2693725Y (zh) * 2004-04-14 2005-04-20 河北东方机械厂 双向动作限速器

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
No further relevant documents disclosed *
See also references of WO2007004293A1 *

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2253571A1 (de) 2009-05-20 2010-11-24 Inventio AG Aufzugsspannvorrichtung und Aufzugsanlage mit einer solchen Aufzugsspannvorrichtung
EP2338822A1 (de) 2009-12-23 2011-06-29 Inventio AG Aufzuganlage mit Geschwindigkeitsbegrenzungseinrichtung
EP2636628A1 (de) 2012-03-09 2013-09-11 ThyssenKrupp Aufzugswerke GmbH Spannvorrichtung für ein Zugmittel einer Aufzuganlage
WO2015155854A1 (ja) * 2014-04-09 2015-10-15 三菱電機株式会社 エレベータ装置
JPWO2015155854A1 (ja) * 2014-04-09 2017-04-13 三菱電機株式会社 エレベータ装置
US10093515B2 (en) 2014-04-09 2018-10-09 Mitsubishi Electric Corporation Elevator apparatus
US10654685B2 (en) 2014-08-01 2020-05-19 Otis Elevator Company Car mounted governor for an elevator system
US11738971B2 (en) 2021-06-25 2023-08-29 Otis Elevator Company Elevator governor tension frame damper

Also Published As

Publication number Publication date
JPWO2007004293A1 (ja) 2009-01-22
EP1900673A4 (de) 2013-07-24
KR100874299B1 (ko) 2008-12-18
CN101014523B (zh) 2010-05-05
KR20070065331A (ko) 2007-06-22
WO2007004293A1 (ja) 2007-01-11
CN101014523A (zh) 2007-08-08

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