EP3305708A1 - Ensemble point fixe pour un ascenseur - Google Patents

Ensemble point fixe pour un ascenseur Download PDF

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Publication number
EP3305708A1
EP3305708A1 EP16192254.7A EP16192254A EP3305708A1 EP 3305708 A1 EP3305708 A1 EP 3305708A1 EP 16192254 A EP16192254 A EP 16192254A EP 3305708 A1 EP3305708 A1 EP 3305708A1
Authority
EP
European Patent Office
Prior art keywords
traction medium
elevator
point assembly
shaft
fix point
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Withdrawn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
EP16192254.7A
Other languages
German (de)
English (en)
Inventor
Oliver Simmonds
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.)
Inventio AG
Original Assignee
Inventio AG
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 Inventio AG filed Critical Inventio AG
Priority to EP16192254.7A priority Critical patent/EP3305708A1/fr
Publication of EP3305708A1 publication Critical patent/EP3305708A1/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Withdrawn legal-status Critical Current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
    • 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
    • B66B7/08—Arrangements of ropes or cables for connection to the cars or cages, e.g. couplings
    • B66B7/085—Belt termination devices

Definitions

  • the present invention relates to a fix point assembly for a traction medium of an elevator as well as to an elevator system.
  • Elevator systems usually have an elevator cabin or elevator car that is vertically movable in a shaft with a drive.
  • the elevator car may be connected via a traction medium, such as a rope or belt, to the drive, which moves the traction medium running over a pulley attached to the elevator cabin. From the elevator cabin, the traction medium may run to a fix point substantially at a similar height as the drive.
  • Elevator systems with one pulley on top of the elevator cabin and a V-shaped suspension may need a fix point which is adapting to the angle between the traction medium and a vertical direction depending on the position of the elevator cabin in the shaft.
  • the traction medium may be connected to an end connection, which is pivot-mounted at the fix point.
  • a first aspect of the invention relates to a fix point assembly for a traction medium of an elevator.
  • the fix point assembly one end of the traction medium, such as a traction belt or a traction rope, may be suspended in an elevator shaft.
  • the traction medium may run down from a drive to an elevator cabin, around a pulley and up to the fix point assembly, such that is substantially V-shaped between the drive and the fix point assembly.
  • the fix point assembly comprises an end connection for connecting the traction medium to an elevator shaft, the end connection comprising a shaft fixation part to be, at least indirectly, fixedly attached to the elevator shaft and a traction medium fixation part for fixedly attaching an end of the traction medium, wherein the traction medium is attached with one end to the traction medium fixation part.
  • the shaft fixation part may comprise a rod that is secured, for example screwed, to the shaft or to a further member secured to the shaft, such as a platform.
  • the shaft fixation part is not movable with respect to the shaft or the further member.
  • the traction medium fixation part may comprise a bracket, which holds an end of the traction medium.
  • the bracket holding the end of the traction medium and the shaft fixation part may be interconnected with a rod.
  • the traction medium fixation part is, at least indirectly, fixedly attached to the shaft via the shaft fixation part and/or is not movable with respect to the shaft and/or the further member to which the shaft fixation part is fixedly attached.
  • the fix point assembly comprises a deflection means for the traction medium, attached, at least indirectly, to the shaft and comprising a rounded deflection surface, wherein the traction medium is guided around the deflection surface, such that a first part of the traction medium between the deflection means and traction medium fixation part runs in a specific direction and such that a second part of the traction medium running away from the deflection means is movable in different directions inclined with respect to the specific direction.
  • the end connection may be always in upright position while the traction medium is deflecting. In such a way, the movement of the traction medium with respect to a vertical direction may be provided by bending the traction means around the rounded deflection surface.
  • the deflection is performed by the traction medium and not the end connection. Since the traction medium is usually designed to bare millions of bends during lifetime, the fix point assembly may not influence the use time of the traction medium.
  • a force from the traction medium acting on the end connection may be directed always in the same direction, such as a vertical direction, independent from the direction of the traction medium beyond the deflection means.
  • the deflection surface is unmovable with respect to the end connection.
  • the deflection means may be fixedly attached to the shaft. In this case, some of the force from the traction medium applied to the end connection may be absorbed in the deflection means due to friction.
  • the deflection means comprises a formed body providing the deflection surface.
  • a body may be a metal plate that may be bent in such a way that the rounded deflection surface is formed.
  • the rounded deflection surface is coated with a friction reducing coating.
  • a friction reducing coating For example, when a sensor for measuring the force on the traction means is attached to the end connection, it may be undesirable that force is removed by the deflection means.
  • the above mentioned metal plate may be coated with the friction reducing coating.
  • the rounded deflection surface may be designed, such that it is movable in the extension direction of the traction means.
  • the deflection means comprises a pulley providing the rounded deflection surface.
  • the pulley may have an axis oriented parallel to the direction in which the traction medium is deflected.
  • the deflection means comprises a rotatable cylinder segment providing the rounded deflection surface.
  • a cylinder segment may be seen as a segment of a pulley.
  • the rotatable cylinder segment may have an axis oriented parallel to the direction in which the traction medium is deflected.
  • the fix point assembly further comprises a horizontal platform to be attached to the elevator shaft, wherein the end connection is connected with the shaft connection part to the horizontal platform and wherein the deflection means is attached below the end connection with the elevator shaft.
  • the first part of the traction medium between the deflection means and the end connection may run vertically.
  • the second part, on the other side of the deflection means, may be deflected in different directions.
  • Many elevator systems comprise such horizontal platform, which also carries the drive of the elevator.
  • a further aspect of the invention relates to an elevator system, which comprises an elevator cabin vertically movable in a shaft, a traction medium for moving the elevator cabin and a drive for transporting the traction medium.
  • the traction medium may run over a pulley driven by the drive, may run down to the elevator cabin, may be deflected by a pulley attached to the elevator cabin and may run up to a hanger assembly as described in the above and in the following.
  • the traction medium may provide a V-shaped suspension for the traction medium, where the opening angle of the V changes with the position of the elevator cabin in the shaft.
  • the changing angle may be compensated by the fix point assembly.
  • the traction medium may be inclined with respect to a vertical direction between the elevator cabin and the fix point assembly and/or the traction medium may be inclined with respect to a vertical direction between the elevator cabin and the drive.
  • the drive and the fix point assembly are attached to a horizontal platform in the elevator shaft.
  • the fix point assembly may be provided on substantially the same height in the shaft as the drive.
  • the traction medium is running over solely one pulley attached to the elevator cabin.
  • the traction medium is fixedly attached to a horizontal platform in the elevator shaft, runs down to a counter weight and runs up to the drive.
  • the drive moves the traction medium between a part connected to the counter weight and a part connected to the cabin.
  • the traction medium runs substantially parallel to the vertical direction.
  • the traction medium in the form of a traction belt is twisted between the drive and the elevator cabin.
  • the traction means is a traction belt with a profiled side
  • this twist ensures that the profiled side is facing the pulley of the elevator cabin and the drive.
  • the profiled side also may face the rounded deflection surface of the deflection means.
  • Fig. 1 shows an elevator system 10, which comprises an elevator cabin 12 vertically movable in a shaft 14 along rails 16, which are attached to the shaft 14.
  • the elevator system 10 furthermore comprises a horizontal platform 18, which is attached at a top end of the shaft 14 and on which a drive 20 is provided.
  • the elevator cabin 12 is moved by the drive 20 with the aid of a traction medium 22.
  • the drive 20 is positioned on a side of the shaft 14.
  • the traction medium 22 is fixedly attached to the horizontal platform 18, with a first end connection 26.
  • the first end connection 26 may be positioned near the drive 20 and/or below the drive 20.
  • the traction medium 22 runs down to a counter weight (not shown) in a vertical direction and, from there, runs up to the drive 20, again in the vertical direction. After that, the traction medium 22 runs over a pulley 28 driven by the drive 20, runs down to the elevator cabin 12, is there deflected by a pulley 30 attached to the elevator cabin 12 and runs up to a fix point assembly 32 with a further end connection 34 for the traction medium 22.
  • the traction medium 22 is fixedly attached to the horizontal platform 18, with the second end connection 34.
  • the traction medium 22 When the traction medium 22 is a traction belt, it may comprise a twisted part 38, which is twisted between the drive 20 and the elevator cabin 12.
  • a belt may comprise a profiled side and due to the twisted part 38, the profiled side may face both pulleys 28, 30.
  • the traction medium 22 is running over solely one pulley 30 attached to the elevator cabin 12, which pulley 30 is attached to a middle of elevator cabin 12 and/or since the fix point assembly 32 is fixedly attached to the platform 18 opposite to the drive 20 in the shaft 14, the traction medium is inclined with respect to the vertical direction between the elevator cabin 12 and the drive 20 and the traction medium 22 inclined with respect to the vertical direction between the elevator cabin 12 and the fix point assembly 32. These inclinations are dependent on the position of the elevator cabin 12 in the shaft.
  • the fix point assembly 32 has a deflection means 40, which is used for compensating the different inclinations.
  • Fig. 2 shows the fix point assembly of Fig. 1 in more detail.
  • the end connection 34 comprises a shaft fixation part 42, which is fixedly attached to the platform 18 and a traction medium fixation part 44 for fixedly attaching the end 36 of the traction medium 22.
  • the shaft fixation part comprises a rod 46, which may be screwed with a nut 48 to the platform 18.
  • the rod 46 runs in the vertical direction.
  • the traction medium fixation part 44 comprises a bracket 50, in which a loop of the traction medium 22 is clamped, such that after the traction medium fixation part 44, the traction medium 22 runs in the vertical direction.
  • the deflection means 40 is attached below the end connection 34, such that a first part 52 of the traction medium 22, which runs in the vertical direction, meets a rounded deflection surface 54 of the deflection means 40. From top to bottom, the deflection surface 54 is firstly substantially parallel with the vertical direction and then becomes more and more inclined with respect to the vertical direction. In such a way, the traction medium 22 in a second part 56 below the deflection means 40 may meet the deflecting surface 54 from below with different inclination angles, without changing the vertical direction of the first part 52.
  • the deflection means 40 comprises a rounded body 58, which provides the deflection surface 54.
  • This body 58 may be directly attached to a holding member 60 attached to the shaft 14.
  • the body 58 may be a rounded plate 58 and/or may be formed of metal and/or plastics.
  • the deflection surface 54 is unmovable fixated with respect to the shaft 14, i.e. may not move, when the traction medium 22 is moving.
  • the rounded deflection surface 58 may be coated with a friction reducing coating 62. In such a way, a force of the traction medium 22 onto the end connection is nearly not reduced by the deflection means 40. This may be beneficial, when a sensor for monitoring the traction medium 22, which sensor may be connected to the end connection 34, is used.
  • Fig. 3 shows an alternative deflection means 40 that may be used with the fix point assembly of Fig. 2 .
  • the rounded deflection surface 54 is provided by a pulley 64 rotatable about an axis 66, which is horizontally aligned.
  • Both the pulley 64 and the rotatable cylinder segment 68 may comprise a rounded deflection surface 54 complementary to a profile of a profiled belt.

Landscapes

  • Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
EP16192254.7A 2016-10-04 2016-10-04 Ensemble point fixe pour un ascenseur Withdrawn EP3305708A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP16192254.7A EP3305708A1 (fr) 2016-10-04 2016-10-04 Ensemble point fixe pour un ascenseur

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP16192254.7A EP3305708A1 (fr) 2016-10-04 2016-10-04 Ensemble point fixe pour un ascenseur

Publications (1)

Publication Number Publication Date
EP3305708A1 true EP3305708A1 (fr) 2018-04-11

Family

ID=57047132

Family Applications (1)

Application Number Title Priority Date Filing Date
EP16192254.7A Withdrawn EP3305708A1 (fr) 2016-10-04 2016-10-04 Ensemble point fixe pour un ascenseur

Country Status (1)

Country Link
EP (1) EP3305708A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110562826A (zh) * 2019-09-05 2019-12-13 歌拉瑞电梯股份有限公司 一种适用于建筑物井道的曳引机上置式施工升降机
CN110589657A (zh) * 2019-09-04 2019-12-20 歌拉瑞电梯股份有限公司 曳引机下置式建筑施工用井道升降机
WO2021042430A1 (fr) * 2019-09-05 2021-03-11 歌拉瑞电梯股份有限公司 Ascenseur de construction doté d'une machine de traction de type suspendu conçue pour être utilisée dans une cage de bâtiment
WO2021042427A1 (fr) * 2019-09-04 2021-03-11 歌拉瑞电梯股份有限公司 Ascenseur à gaine doté d'une machine de traction de type sous-jacent pour la construction d'un bâtiment

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004075362A (ja) * 2002-08-21 2004-03-11 Mitsubishi Electric Corp エレベーターの主索引き止め装置
WO2007013400A1 (fr) * 2005-07-26 2007-02-01 Toshiba Elevator Kabushiki Kaisha Ascenseur et son dispositif de guidage de cables de levage
US20120090144A1 (en) * 2010-10-15 2012-04-19 Kone Corporation Method for modernizing an elevator

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004075362A (ja) * 2002-08-21 2004-03-11 Mitsubishi Electric Corp エレベーターの主索引き止め装置
WO2007013400A1 (fr) * 2005-07-26 2007-02-01 Toshiba Elevator Kabushiki Kaisha Ascenseur et son dispositif de guidage de cables de levage
US20120090144A1 (en) * 2010-10-15 2012-04-19 Kone Corporation Method for modernizing an elevator

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110589657A (zh) * 2019-09-04 2019-12-20 歌拉瑞电梯股份有限公司 曳引机下置式建筑施工用井道升降机
WO2021042427A1 (fr) * 2019-09-04 2021-03-11 歌拉瑞电梯股份有限公司 Ascenseur à gaine doté d'une machine de traction de type sous-jacent pour la construction d'un bâtiment
CN110562826A (zh) * 2019-09-05 2019-12-13 歌拉瑞电梯股份有限公司 一种适用于建筑物井道的曳引机上置式施工升降机
WO2021042430A1 (fr) * 2019-09-05 2021-03-11 歌拉瑞电梯股份有限公司 Ascenseur de construction doté d'une machine de traction de type suspendu conçue pour être utilisée dans une cage de bâtiment

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