EP1278694A1 - Load-carrying means for cable-operated elevators with an integrated load measurement device - Google Patents
Load-carrying means for cable-operated elevators with an integrated load measurement deviceInfo
- Publication number
- EP1278694A1 EP1278694A1 EP01921103A EP01921103A EP1278694A1 EP 1278694 A1 EP1278694 A1 EP 1278694A1 EP 01921103 A EP01921103 A EP 01921103A EP 01921103 A EP01921103 A EP 01921103A EP 1278694 A1 EP1278694 A1 EP 1278694A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- load
- cable
- suspension device
- rope
- load suspension
- 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
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B1/00—Control systems of elevators in general
- B66B1/34—Details, e.g. call counting devices, data transmission from car to control system, devices giving information to the control system
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B1/00—Control systems of elevators in general
- B66B1/34—Details, e.g. call counting devices, data transmission from car to control system, devices giving information to the control system
- B66B1/3476—Load weighing or car passenger counting devices
- B66B1/3484—Load weighing or car passenger counting devices using load cells
Definitions
- the present invention relates to a load suspension device for cable lifts with an integrated load measuring device, in which the weight of the load suspension device and the payload causes the load-proportional deformation of at least one elastic element, at least one sensor detecting this deformation and representing the strength of the deformation and thus the load Generated signal to an elevator control.
- Load measuring devices for load suspension devices of lifts have the task of preventing elevator travel with an impermissibly high load and of providing the elevator control system with information that enables it to react appropriately to call commands by elevator users depending on the current load condition of the load suspension device.
- EP 0 151 949 discloses a load measuring device for an elevator elevator, which is based on the principle that the entire elevator car projects on at least four horizontally from an elevator floor frame
- Bending beams supports that these bending beams experience a load-proportional deflection.
- the deflection of each individual bending beam is recorded using strain gauges. All strain gauges together form a measuring bridge that sends a load-proportional analog signal to the. Elevator control supplies.
- the load measuring device described has some disadvantages.
- the measuring principle requires four bending girders, each equipped with one or two strain gauges, whereby the mechanical tolerances of the bending girders as well as the resistance and attachment tolerances of the strain gauges are to be limited so closely that all four
- Bending sensors with the same loads have the same resistance values. All four or eight strain gauges must be individually connected to a central evaluation circuit, which causes considerable effort. In addition, the four force introduction points between the floor of the elevator car and the bending beams must be adjusted vertically during assembly so that an acceptable force distribution is guaranteed.
- the present invention has for its object to provide a simple and inexpensive load measuring device for load suspension devices of elevators with looping rope drive, which does not have the disadvantages mentioned above.
- the load suspension device according to the invention for cable lifts with an integrated load measuring device has significant advantages.
- the total weight of the load suspension device and thus also the payload is recorded by means of a single sensor, and eccentrically arranged payloads are also correctly recorded with this. This saves costs for further sensors, for their wiring and for their more complicated signal evaluation.
- the elastic element, whose deformation caused by the weight of the load suspension device is detected by the sensor, is part of the support structure with which the rope pulleys are attached to the load handler. As a result, essentially no additional mechanical construction elements and no additional installation space for the load measuring device are required.
- the elastic element the load-dependent deformation of which is detected by a sensor, can be designed for different types of stress, i. H. it can be designed, for example, as a bending beam, as a tension / compression rod, as a torsion bar or, in order to achieve larger deformation paths, as a compression, tension or torsion spring. This allows optimally adapted load measuring devices to be designed for different designs of load suspension devices.
- Advantageous and inexpensive designs of the load suspension device according to the invention with an integrated load measuring device can be achieved by using sensor principles which are adapted to geometric conditions, environmental influences and in particular to accuracy requirements.
- the invention allows the use of a wide variety of sensors for detecting deformation, such as strain gauges, vibrating string sensors, opto-electrical distance or angle sensors and inductive or capacitive distance sensors.
- Load suspension devices or improved deformation measurement options can be the advantages.
- the support structures for the two pulleys can be designed as separate and differently designed units and no mechanical connections between these units are required. Such designs are made possible by the fact that both rope pulleys are always subjected to the same load in the inventive looping arrangement of the support ropes.
- Load suspension devices for larger loads are usually equipped with a support frame.
- load suspension devices for smaller payloads, these can be designed as a self-supporting unit.
- the support structure (s) carrying the rope pulleys and containing the elastic element are advantageously fastened directly to the floor structure of the load-carrying means.
- FIGS. 1 to 3 show schematically the installation situation for a load suspension device according to the invention without a supporting frame with a first variant of the integrated load measuring device.
- 2 shows a load suspension device according to the invention without a support frame with a second variant of the integrated load measuring device.
- FIG 3 shows a load suspension device according to the invention without a support frame with a third variant of the integrated load measuring device.
- 1 shows a load-bearing device 1 without a supporting frame according to the invention with the elevator components that are most important for its function.
- 2 designates two guide rails on which the load-carrying means is guided vertically by means of sliding or roller guide shoes 3.
- This essentially consists of a base frame 4 with base plate 5, a cabin 6 built thereon, the slide or roller guide shoes 3 mentioned, and two rope pulleys 9 fastened to the base frame 4 by means of a support structure 7 via elastic insulation elements 8.
- the support structure 7 consists of a bending beam 7.1 and two pulley supports 7.2.
- a supporting rope 10 can also be seen, which is guided vertically downward from a fixed rope point 11, then horizontally under the rope pulleys 9 of the load-carrying device 1 and then vertically upward to a traction sheave 12 of an elevator drive machine 13.
- the further course of the suspension cable 10 from the traction sheave 12 down to a deflection sheave attached to a balancing weight and from there upward to a second fixed rope point is not shown here.
- a vertical and a horizontal load-proportional rope tensile force acts on each of the two rope pulleys 9.
- the arrows 14 symbolize the on the pulleys 9 and thus on the Support structure 7 acting, resulting from the rope tensile forces of the supporting ropes rope pulley loads.
- a deflection sensor 15 for example a strain gauge sensor, which is not explained in more detail here and which generates a signal corresponding to the strength of the deflection and thus the total weight of the load-bearing means 1 as input for an elevator control.
- the load-carrying means 1 with base frame 4, base plate 5 and cabin 6, which are guided on guide rails 2 by means of a sliding or roller guide shoe 3, can be seen.
- the support structure 7 carrying the cable pulleys 9 essentially consists of a fastening support 17 attached to the base frame 4 via elastic insulation elements i and two cable pulley supports 18.
- the cable pulley support, not shown here, arranged on the right corresponds to the cable pulley supports according to FIG. 1.
- the cable pulley support 18 on the left is articulated by means of a bending element 19 on the mounting bracket 17 and supported by a pressure sensor 16 relative to the latter.
- the articulated attachment of the pulley support 18 could also be achieved with an articulated axis.
- the cable pulley load 14 resulting from the cable tensile forces of the supporting cables causes a load-proportional compressive force on the pressure sensor 16, which also forms the elastic element, and which generates a signal corresponding to the total weight of the load-carrying device 1 as input for an elevator control.
- the pressure sensor can be designed, for example, as a piezoelectric element, as a capacitive sensor or as a strain gauge element.
- 3 shows a third variant of the load suspension device according to the invention with an integrated load measuring device.
- the rope pulley support, not shown here, arranged on the right corresponds to the rope pulley supports according to FIG.
- a stop 23 prevents overloading of the torsion bar 22. The latter is extended beyond the bearing support 20 towards the rear (into the plane of the drawing) and is connected at its rear end to the fastening bracket 17 in a rotationally fixed manner.
- Rope pull forces of the supporting ropes result in rope pulley load 14, via the rope pulley support 21 designed as a pivot lever, causing a load-proportional torque which rotates the torsion bar 22 and causes corresponding load-proportional torsional stresses in the latter.
- the torsion bar In its exposed area, i.e. H.
- the torsion bar is equipped on its surface with a torsion voltage sensor in the form of strain gauges, with the aid of which the torsion voltages and thus the torque are recorded and a signal corresponding to the total weight of the load suspension device 1 as input for a Elevator control can be generated.
- a torsion voltage sensor in the form of strain gauges, with the aid of which the torsion voltages and thus the torque are recorded and a signal corresponding to the total weight of the load suspension device 1 as input for a Elevator control can be generated.
- commercially available torque measuring devices based on other measuring principles can also be used as the torque sensor.
Landscapes
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Mechanical Engineering (AREA)
- Computer Networks & Wireless Communication (AREA)
- Maintenance And Inspection Apparatuses For Elevators (AREA)
- Elevator Control (AREA)
- Cage And Drive Apparatuses For Elevators (AREA)
- Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
- Force Measurement Appropriate To Specific Purposes (AREA)
- Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
- Forklifts And Lifting Vehicles (AREA)
- Grinding Of Cylindrical And Plane Surfaces (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP01921103A EP1278694B1 (en) | 2000-05-01 | 2001-04-26 | Load-carrying means for cable-operated elevators with an integrated load measurement device |
HK03104981.0A HK1055590B (en) | 2000-05-01 | 2003-07-30 | Load-carrying means for cable-operated elevators with an integrated load measurement device |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP00810371 | 2000-05-01 | ||
EP00810371 | 2000-05-01 | ||
PCT/CH2001/000625 WO2002032565A1 (en) | 2000-10-19 | 2001-04-26 | Reactor |
EP01921103A EP1278694B1 (en) | 2000-05-01 | 2001-04-26 | Load-carrying means for cable-operated elevators with an integrated load measurement device |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1278694A1 true EP1278694A1 (en) | 2003-01-29 |
EP1278694B1 EP1278694B1 (en) | 2012-12-26 |
Family
ID=8174674
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP01921103A Expired - Lifetime EP1278694B1 (en) | 2000-05-01 | 2001-04-26 | Load-carrying means for cable-operated elevators with an integrated load measurement device |
Country Status (19)
Country | Link |
---|---|
US (1) | US6715587B2 (en) |
EP (1) | EP1278694B1 (en) |
JP (1) | JP5044079B2 (en) |
KR (1) | KR20030003269A (en) |
CN (1) | CN1218864C (en) |
AU (1) | AU784531B2 (en) |
BR (1) | BR0110436B1 (en) |
CA (1) | CA2406896C (en) |
CZ (1) | CZ298166B6 (en) |
ES (1) | ES2401773T3 (en) |
HK (1) | HK1055590B (en) |
HU (1) | HU226605B1 (en) |
MX (1) | MXPA02010660A (en) |
NO (1) | NO322985B1 (en) |
PL (1) | PL205025B1 (en) |
RU (1) | RU2271327C2 (en) |
SK (1) | SK286344B6 (en) |
WO (1) | WO2001083350A1 (en) |
ZA (1) | ZA200208701B (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2023117773A1 (en) | 2021-12-23 | 2023-06-29 | Inventio Ag | Brake device for an elevator car, use thereof in an elevator system, and method |
Families Citing this family (33)
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SG123668A1 (en) * | 2004-12-10 | 2006-07-26 | Inventio Ag | Pulley arrangement for elevators |
FI120763B (en) | 2006-06-05 | 2010-02-26 | Kone Corp | A method of measuring the load in an elevator and an elevator |
US7784589B2 (en) * | 2006-07-10 | 2010-08-31 | Inventio Ag | Elevator lift cage load measuring assembly |
TWI394705B (en) * | 2007-02-02 | 2013-05-01 | Inventio Ag | Lift and method of monitoring this lift |
CN101298307B (en) * | 2007-05-03 | 2010-06-23 | 因温特奥股份公司 | Elevator equipment, a slewing roller for elevator equipment and a method for installing a load sensor |
ES2409169T3 (en) * | 2007-06-08 | 2013-06-25 | Otis Elevator Company | Elevator system with guide shaft aligned with traction element |
FI20070539L (en) * | 2007-07-09 | 2009-01-10 | Kone Corp | Elevator system |
US8162110B2 (en) * | 2008-06-19 | 2012-04-24 | Thyssenkrupp Elevator Capital Corporation | Rope tension equalizer and load monitor |
BRPI1009909B1 (en) * | 2009-04-20 | 2019-10-29 | Inventio Ag | elevator installation with at least one elevator cabin and at least one counterweight |
EP2560909B1 (en) * | 2010-04-19 | 2014-08-20 | Inventio AG | Operational state monitoring of load-bearing devices in a lift assembly |
CH703134A2 (en) * | 2010-05-14 | 2011-11-15 | Kone Corp | System for the detection of the load in the cab of an elevator. |
WO2012031961A1 (en) | 2010-09-09 | 2012-03-15 | Inventio Ag | Load measuring device for an elevator installation |
JP5776424B2 (en) * | 2011-08-03 | 2015-09-09 | フジテック株式会社 | Elevator equipment |
US9522806B2 (en) * | 2012-06-29 | 2016-12-20 | Inventio Ag | Deflection pulley cover for monitoring elevator car support |
CN102910514B (en) * | 2012-11-01 | 2015-03-04 | 日立电梯(中国)有限公司 | Elevator car weighing system and weighing method |
CN103342273A (en) * | 2013-07-11 | 2013-10-09 | 上海振华重工(集团)股份有限公司 | Weighing device of multi-multiplying- power pulley block |
DE112013007291T5 (en) * | 2013-08-02 | 2016-04-21 | Mitsubishi Electric Corporation | substructure elevator |
CN103552894B (en) * | 2013-11-14 | 2016-08-17 | 日立电梯(中国)有限公司 | Weighing structure at the bottom of sedan-chair and comprise the elevator of weighing structure at the bottom of this sedan-chair |
EP3000758B1 (en) * | 2014-09-25 | 2019-04-17 | KONE Corporation | Method for balancing an elevator car |
DE102014220445B4 (en) * | 2014-10-09 | 2017-06-08 | Thyssenkrupp Ag | Device for checking guides |
WO2016096731A1 (en) * | 2014-12-18 | 2016-06-23 | Inventio Ag | Electrical energy generation within an elevator installation |
CN104528497B (en) * | 2014-12-23 | 2016-11-02 | 林肯电梯(中国)有限公司 | A kind of high pressure traction machine |
CN105984773B (en) * | 2015-02-28 | 2020-06-12 | 通力股份公司 | Rope load detecting device for detecting total load of a plurality of elevator ropes |
JP6224643B2 (en) * | 2015-03-26 | 2017-11-01 | 日本碍子株式会社 | Shelf board crack detection method, honeycomb structure transport method, shelf board crack detection device, and shelf board transport device |
RU2618862C2 (en) * | 2015-10-12 | 2017-05-11 | Общество с ограниченной ответственностью "ФИРМА ПОДИЙ" ООО "ФИРМА ПОДИЙ" | Method for lifting device motion parameters controlling |
EP3601131B1 (en) * | 2017-03-31 | 2022-05-11 | Inventio AG | Elevator car load measurement system and method for determining a load of an elevator car |
DE102017219304A1 (en) * | 2017-10-27 | 2019-05-02 | Contitech Antriebssysteme Gmbh | Method and device for determining the tensile force in a carrying, conveying or traction means |
EP3705435B1 (en) * | 2019-03-05 | 2021-09-15 | KONE Corporation | A combined elevator vibration isolation and load measurement element |
CN109795928A (en) * | 2019-03-13 | 2019-05-24 | 日立电梯(中国)有限公司 | Lift car, progress control method and elevator |
CN110626907B (en) * | 2019-07-25 | 2023-07-25 | 山东奔速电梯股份有限公司 | Overload detection device of indoor elevator and method for controlling elevator by using overload detection device |
CN110697548B (en) * | 2019-08-31 | 2021-04-06 | 上海汉神机电股份有限公司 | Vibration reduction system for preventing vibration of elevator car body and working method thereof |
US11772933B2 (en) | 2019-10-31 | 2023-10-03 | Inventio Ag | Brake device for an elevator car, comprising an integrated load measuring device, use thereof in an elevator system, and method |
EP4271640A1 (en) | 2020-12-31 | 2023-11-08 | Inventio Ag | Suspension device and use thereof in an elevator system, and method |
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JP3300061B2 (en) * | 1991-11-15 | 2002-07-08 | オーチス エレベータ カンパニー | Assembly for load measurement of elevator vehicles |
JPH11314868A (en) * | 1998-04-28 | 1999-11-16 | Toshiba Elevator Co Ltd | Car load detecting device of elevator |
JP4131764B2 (en) * | 1998-09-01 | 2008-08-13 | 東芝エレベータ株式会社 | Elevator equipment |
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-
2001
- 2001-04-26 CZ CZ20023840A patent/CZ298166B6/en not_active IP Right Cessation
- 2001-04-26 WO PCT/CH2001/000265 patent/WO2001083350A1/en active IP Right Grant
- 2001-04-26 JP JP2001580789A patent/JP5044079B2/en not_active Expired - Fee Related
- 2001-04-26 SK SK1476-2002A patent/SK286344B6/en not_active IP Right Cessation
- 2001-04-26 PL PL358217A patent/PL205025B1/en unknown
- 2001-04-26 HU HU0300349A patent/HU226605B1/en not_active IP Right Cessation
- 2001-04-26 MX MXPA02010660A patent/MXPA02010660A/en active IP Right Grant
- 2001-04-26 RU RU2002132265/03A patent/RU2271327C2/en not_active IP Right Cessation
- 2001-04-26 CA CA2406896A patent/CA2406896C/en not_active Expired - Lifetime
- 2001-04-26 ES ES01921103T patent/ES2401773T3/en not_active Expired - Lifetime
- 2001-04-26 EP EP01921103A patent/EP1278694B1/en not_active Expired - Lifetime
- 2001-04-26 BR BRPI0110436-5A patent/BR0110436B1/en not_active IP Right Cessation
- 2001-04-26 CN CNB018089119A patent/CN1218864C/en not_active Expired - Fee Related
- 2001-04-26 KR KR1020027014675A patent/KR20030003269A/en not_active Application Discontinuation
- 2001-04-26 AU AU48217/01A patent/AU784531B2/en not_active Ceased
-
2002
- 2002-10-28 ZA ZA200208701A patent/ZA200208701B/en unknown
- 2002-10-30 US US10/283,782 patent/US6715587B2/en not_active Expired - Lifetime
- 2002-11-01 NO NO20025257A patent/NO322985B1/en unknown
-
2003
- 2003-07-30 HK HK03104981.0A patent/HK1055590B/en not_active IP Right Cessation
Non-Patent Citations (1)
Title |
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See references of WO0183350A1 * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2023117773A1 (en) | 2021-12-23 | 2023-06-29 | Inventio Ag | Brake device for an elevator car, use thereof in an elevator system, and method |
Also Published As
Publication number | Publication date |
---|---|
JP2004520243A (en) | 2004-07-08 |
MXPA02010660A (en) | 2003-03-10 |
SK14762002A3 (en) | 2003-03-04 |
US6715587B2 (en) | 2004-04-06 |
BR0110436B1 (en) | 2009-08-11 |
NO20025257D0 (en) | 2002-11-01 |
PL205025B1 (en) | 2010-03-31 |
CZ20023840A3 (en) | 2004-06-16 |
CA2406896A1 (en) | 2001-11-08 |
CA2406896C (en) | 2010-01-26 |
HK1055590B (en) | 2013-06-14 |
CZ298166B6 (en) | 2007-07-11 |
CN1218864C (en) | 2005-09-14 |
NO20025257L (en) | 2002-11-01 |
AU4821701A (en) | 2001-11-12 |
HK1055590A1 (en) | 2004-01-16 |
ES2401773T3 (en) | 2013-04-24 |
HUP0300349A2 (en) | 2003-06-28 |
US20030111301A1 (en) | 2003-06-19 |
EP1278694B1 (en) | 2012-12-26 |
CN1427798A (en) | 2003-07-02 |
AU784531B2 (en) | 2006-04-27 |
BR0110436A (en) | 2003-04-01 |
NO322985B1 (en) | 2006-12-18 |
PL358217A1 (en) | 2004-08-09 |
SK286344B6 (en) | 2008-07-07 |
WO2001083350A1 (en) | 2001-11-08 |
ZA200208701B (en) | 2003-10-28 |
RU2271327C2 (en) | 2006-03-10 |
JP5044079B2 (en) | 2012-10-10 |
HU226605B1 (en) | 2009-04-28 |
KR20030003269A (en) | 2003-01-09 |
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