WO2002068306A1 - Sicherheitseinrichtung für bewegbare elemente, insbesondere aufzüge - Google Patents
Sicherheitseinrichtung für bewegbare elemente, insbesondere aufzüge Download PDFInfo
- Publication number
- WO2002068306A1 WO2002068306A1 PCT/EP2002/001804 EP0201804W WO02068306A1 WO 2002068306 A1 WO2002068306 A1 WO 2002068306A1 EP 0201804 W EP0201804 W EP 0201804W WO 02068306 A1 WO02068306 A1 WO 02068306A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- speed
- safety device
- safety
- distance
- unit
- Prior art date
Links
Classifications
-
- 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
- B66B5/06—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions for detecting excessive speed electrical
-
- 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
- Safety device for movable elements in particular elevators
- the present invention relates to a safety device according to the preamble of claim 1.
- the safety device is characterized in particular by the fact that it contains a distance determination unit, a speed determination unit and an intelligent zero comparison device, the intelligent comparison device having a memory for storing a maximum permissible speed and at least one reference position (distance to the target of the movable element) with a particularly assigned intermediate speed and, when the reference position has been reached, the distance determining unit reports this to the comparison device, which checks whether there is a maximum permissible intermediate speed for the reference position and, if so, compares it with the actual speed detected by the speed determining unit at this time and if it is exceeded the intermediate speed which triggers the trigger unit to emit an electronic trigger signal, and wherein
- the intelligent Ner GmbH
- the maintenance effort compared to a mechanical speed limiter is significantly reduced, since the trigger signal can also advantageously be transmitted to the braking device without contact.
- the distance-dependent speed limit makes it possible not only to monitor a limit speed, but also to monitor a large number of speeds and even driving curve profiles depending on the destination. This leads to a so-called multi-stage safety device, which opens up a multitude of additional options, such as limiting the distance to another moving object in the shaft, targeted test initiation at low speeds or loads, etc.
- this enables a more targeted monitoring of the limiting speed in the acceleration and braking phase, which improves and simplifies the operation and construction of the entire system, e.g. B. with regard to lower requirements for additional buffer zones in an elevator shaft.
- the elevator guidelines provide buffer facilities in a shaft pit. These must be designed in such a way that in the event of a malfunction, the cabin can drive onto it at full speed, without being damaged.
- the buffers can be reduced to a standard size by introducing a reduced nominal speed in the shaft end area.
- the shaft pit and shaft head are correspondingly smaller, the static requirements are reduced.
- an additional reduced second limiting speed requires an at least two-speed limiter or safety device that automatically switches to the lower speed when the cabin enters the shaft end area and has reached a defined distance from the shaft end.
- a position-controlled multi-stage does not only allow fixed speeds, e.g. to monitor the nominal speed, but also braking and acceleration phases according to the pre-calculated distance-speed characteristic curves and to actuate a braking device in the event of deviations, preferably first the service brake and, if the result is negative, a short time later an emergency brake, such as e.g. B. a safety brake.
- the corresponding reference data from the normal path-speed curve of the moving element to be monitored can be copied by the elevator control into the memory of the safety device or entered separately into it.
- the security device can also receive current data, for example from an external information system, such as. B. a shaft information system in elevator systems.
- the security device it is advantageous to continue to equip the security device with a data transmission and / or reception unit.
- This makes it possible, for example, to have several cabins run in a shaft, each of which is assigned its own safety device.
- the data of each safety device is continuously or wirelessly exchanged with the neighboring cabin.
- the safety device thus recognizes its own position and that of the neighboring cabin. It continuously determines the distance from this. If the determined distance falls below a predetermined, stored reference value, the speed assigned to this reference value is additionally activated and compared with the actual speed detected by the safety device. If the reference speed is exceeded at the time the reference distance is undershot, the safety device trips.
- This adaptive behavior ensures that several cabins move optimally in one shaft, for example, one on top of the other who can close, and the safety device only intervenes when safety-relevant driving conditions occur.
- the invention can also be used to automatically and gently carry out the still specified capture and buffer tests in a reduced speed range and to record the result in a memory.
- the multi-stage safety device can e.g. can be achieved in that the previous, cable-driven, single-stage mechanical release is retained and is supplemented or retrofitted with an electronic component or an electronic distance and speed limiter unit.
- the known, single-stage mechanical speed limiters have a centrifugal force-controlled mechanical release and, in the case of a combination with an electronic speed limiter unit, are intended to monitor an absolute maximum speed. This means that the mechanical speed limiter unit of a multi-stage combined distance and speed limiter is mainly intended for emergency operation and thus significantly increases the safety of the system.
- the safety-relevant data of the movable element monitored by the safety device such as the elevator, as well as the data in the event of a fault, such as the release speed, release time and braking delay after the brake device has been triggered, can be recorded in the memory provided in the safety device and are available for analysis and reconstruction all operations are available.
- the data can also be saved in a separate, encapsulated and sealed storage module and overwritten at a defined time interval, for example every 10 minutes.
- the safety device has a distance and speed determination unit.
- the realization of these units can be done in different ways, e.g. B. separately or combined.
- a pulse counter can be provided which detects codings on a coding disk which is driven by a rope, the traction sheave or a friction wheel on the element to be monitored.
- radar and / or laser sensors for the contactless determination of distance and speed.
- a pyrotechnic actuator is provided as part of the triggering unit of the speed limiter, the explosive charge of which is ignited by an electronic triggering signal from the triggering unit.
- this pyrotechnic actuator can e.g. consist of a cylinder in which a movable pull or push piston is arranged, which is connected via a linkage or a flexible connection to the braking device, e.g. a safety brake is connected.
- a safety brake is connected to the a safety brake.
- the present invention with the electronically acting distance and speed limiter using a pyrotechnic actuator leads in particular to a more precise and responsive triggering as well as increasing the reliability and reducing maintenance.
- the devices can be standardized and standardized.
- the speed limiter can also be used to perform additional tasks, such as: a position-controlled multi-stage, i.e. use of several release speeds / curves depending on the path section and the car position in the shaft, adaptive distance protection when several cars are moving in a shaft, situation-dependent triggering of parallel and serial safety brakes, black box for recording and securing the relevant elevator data before and after using the speed limiter with safety brake (time, speed, decelerations, braking distances, etc.).
- distances (1 to n) defined by the distance from position X to a fixed or movable target Y with reference points (1 to n) contained therein, which in turn are defined by a distance Z to the target, and each of which is assigned a reference speed is.
- the relevant route 1 - n is selected and when the first reference point is reached, the assigned reference speed is compared with a current actual speed and the braking device is signaled and triggered when it is exceeded
- FIG. 1 shows a side view of a safety device according to the invention
- Fig. 2 is a side view of another embodiment of an inventive
- Fig. 3 is a side sectional view of a braking device with pyrotechnic
- Fig. 4 is a path-speed diagram of an elevator with different limit speeds.
- FIG. 1 shows a partially sectioned side view of a safety device 1 according to the invention, which is composed of a number of functional units which are implemented with the following structural units. These include:
- a coding disk 10 with pulse counter and direction indicator an electronic control unit 2 equipped with a microprocessor, memory, a virtual module, digital clock, a battery-buffered power supply, output units A with serial and parallel outputs, input units E with serial and parallel inputs, and a plug-in, sealed Additional memory 13.
- an actuator 3 in this example based on the pyrotechnic principle, for mechanically actuating the brake. Pulse generator, electronic control unit 2 and actuator 3 can also be spatially separated. be built and through a wired or wireless connection z. B. radio linked.
- an output unit A of the electronic control unit 2 sends the trigger signal of the trigger unit via line 12 to the igniter 8 of the pyrotechnic actuator 3, whereby braking of the safety device or the elevator car connected to it is initiated.
- a number of other functions must be considered for the distance and speed limits depending on the destination.
- the functional units include a distance unit, a speed determination unit, an intelligent comparison device and a trigger unit.
- the components used by the speed determination unit also comprise a friction wheel 9, which is pressed against a guide rail 11 by spring force and on which a coding disk 10 is attached.
- a pulse counter and the digital clock which are arranged in the electrical control unit 2
- the speed of the speed limiter which is arranged for example on an elevator car, can be determined when the coding disk 10 rotates.
- the distance determination unit uses the same components as the speed determination unit and, in the exemplary embodiment shown, is simultaneously designed as a position determination unit. It determines the position of the cabin in the shaft, the distance to the fixed or moving target and a desired distance to the target. For this purpose, it also requires exact reference points e.g. B. at the beginning and end of the shaft in the form of sensors, contacts, or magnetic switches for the arrival of the cabin on To signal the final destination to the control unit 2. These end points PO can be supplemented by further intermediate destination points Pl-n, for example for the stops in the shaft.
- the distance determination unit now measures the total length of the shaft as well as all existing intermediate sections in a learning trip from PO to PO and stores these reference sections, labeled in the memory. If the cabin reaches PO after the learn run or in later operation, the pulse counter is reset to 0.
- the cabin now receives a destination in practical operation, for example to drive from the bottom stop to floor 2, this call goes to the elevator control and in parallel to the distance interface unit.
- the latter then reads out the corresponding reference route PO storey 2 stored in the learning trip, and subtracts the distance measured by the pulse counter when the car starts to move.
- the distance covered gives the position of the cabin in relation to the start of the shaft and the remaining distance the distance to the current destination.
- the distance or position determination unit knows the position of the cabin in the shaft and the remaining distance to the destination at all times. If a direction reversal occurs, this is recognized by the direction indicator and the path impulses are given the sign corresponding to the direction. If 2 cabins move independently of one another in the shaft, each cabin receives the position, direction of travel and speed wirelessly or by wire from the distance or position and speed determination unit of the neighboring cabin and continuously calculates the distance to the moving neighboring destination.
- the intelligent comparison device holds speed setpoints for distances in the memory, which it reads from the memory as a function of the predefined destination and compares it with the delivered actual values of the distance and speed determination unit.
- Specified setpoints are e.g. B. a distance 1-n, to a destination x, with an assigned reference speed y.
- the validity period of the reference speed can again be defined as a point or distance. If the comparison unit receives a destination, it looks in the memory to determine whether there is a distance with or without speed. The target distance is compared with the current distance to the target. If the distances are the same, the speed setpoint is also compared with the current actual speed. If the set speed is exceeded, a trigger signal is generated.
- the comparison unit receives a destination for a mobile object that is moving in the opposite direction, it doubles the stored target distance.
- Trigger unit as well as data sending and receiving unit:
- the trigger or data transmission and reception unit includes several inputs that process control information and several outputs that are connected to the actuators of the brakes. Depending on the control information, a software module assigns the trigger pulses from the comparison unit to the correct actuator in the correct chronological order.
- Control information is e.g. the actuation of the actuator, the direction of travel and the speed of the cabin.
- a pyrotechnic actuator 3 receives an ignition pulse via line 12 and the actuator 3 does not acknowledge this within a time interval, a second ignition pulse is automatically sent on a further parallel output.
- the output unit Based on the current direction of travel, the output unit assigns the trigger pulse to an upward or downward-acting brake.
- the release unit fires according to the current speed, e.g. one or two brakes in a row.
- the following example shows a pyrotechnic principle.
- the pyrotechnic actuator 3 consists of a cylinder 4 and a piston 5 movable in the cylinder, which is connected via a linkage or flexible connection 7 to the braking device, not shown. If the trigger signal is transmitted from the electrical control unit 2 to the detonator 8, the explosive charge located in the detonator is ignited and the piston 5 is moved accordingly in the cylinder 4.
- a sensor preferably provided on the pyrotechnic actuator 3, detects the actuation of the pyrotechnic actuator 3 and reports it back to the electronic control unit 2.
- the trigger unit of the electrical control unit 2 sends ignition signals at defined time intervals until the actuation confirmation has been transmitted by the pyrotechnic actuator.
- the number of firing commands that have occurred and the feedback from the sensor can be stored in an additional memory or a memory area of the memory 13.
- the ignition status can also be transmitted to the elevator control and the elevator is deemed to be faulty, for example, until the number of firing commands which have been used is reset to zero when the fired charge is renewed.
- FIG. 2 shows, in a representation similar to FIG. 1, a further embodiment of a safety device 100 according to the invention.
- the safety device 100 differs from the safety device 1 of the previous embodiment in that it has a combined multi-stage, in particular a two-stage combination, one of which is Stage of the safety device 100 is realized by a conventional mechanical speed limiter unit.
- multi-stage means that not only a maximum speed can be monitored, but several different speeds, in particular those that are graded according to the application situation, can be monitored. While this can be achieved in a simple manner in the previous exemplary embodiment, which is shown in FIG.
- an additional mechanical speed limiter unit is provided in the embodiment of FIG. 2, which monitors an absolute maximum speed value.
- the mechanical speed limiter unit of the safety device 100 comprises a rope-driven disk 125 in a known design. square disc 124 attached. A rocker 120 is in turn mounted above this. One leg of the rocker 120 ends in a roller 128, which is pressed against the polygonal disc 124 by an adjustable spring 121. The other end of the rocker 120 ends in a pawl 122.
- the speed of the speed limiter is increased, the limb with the roller 128, controlled by centrifugal force, lifts when the maximum limit speed to be monitored is reached, until the other limb in a dovetail-shaped nipple 126 on the Disc 124 engages and thus blocks the speed limiter 100.
- the rocker 120 can be set to different limiting speeds by means of the applied spring tension.
- the rocker 120 is also used to actuate the braking device via the electronic speed limiting unit of the safety device 100, which essentially corresponds to the embodiment of the safety device 1.
- the trigger signal from the electronic control unit 102 of the safety device 100 is sent via an output unit A and a corresponding cable connection 112 to an electronically actuatable actuator 127 which actuates the rocker 120 when actuated.
- FIG. 3 shows a partially sectioned side view of the integration of a pyrotechnic actuator 30 in a braking device 40.
- the piston 35 of the pyrotechnic actuator 30 is driven via the ignition of the ignition charge 38 by means of a trigger signal transmitted via the line 42, so that the deflection roller 39 and the actuation of the sliding wedge 41 the safety brake triggers the braking process.
- This embodiment is particularly advantageous when a safety device 1 is used centrally for several safety brakes, and z. B. is arranged on the traction sheave of an elevator.
- separate actuators 30 are required at least for each direction of travel.
- a centrally arranged safety device 1 can be used centrally for safety devices that act upwards or downwards and can ignite the corresponding safety devices or braking devices depending on the situation.
- the safety gear with integrated actuator 30 can be connected in parallel or in series according to the embodiment of Figure 3. In this way it is possible to better master different speed and load cases and to make the braking deceleration more gentle.
- a plurality of safety gear devices 40 are connected in series, each contains their own actuator 30.
- the trigger pulses are then sent in a time-controlled manner via preferably parallel output units A of the electronic control unit 2 to the individual actuators 30 in order to generate the desired braking response in accordance with the driving state of the cabin.
- the safety brakes of the neighboring cabins can also be controlled in the event of a fault, for example via radio or wire connections. Since each cabin usually has its own safety device, a redundant double function is created. However, it is then necessary to additionally evaluate the elevator control system data and the shaft information system data.
- FIG. 4 shows a simple use case for a multi-stage safety device 1 or 100 according to the present invention in a path-speed diagram.
- the safety device monitors the limiting speed BG1, the exceeding of which would initiate a braking process.
- a second limiting speed BG2 is monitored, depending on the distance.
- the elevator car Shortly before reaching the destination PO, the elevator car must be braked to the speed RG. So puts the safety device on the Position P2 determines that the elevator car has a higher speed (BG2) than the nominal speed RG, a braking process is also initiated.
- the reference point P2 must be selected so that if the limit speed BG2 is exceeded, the braking device triggered can stop the cabin before the end of the shaft.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Maintenance And Inspection Apparatuses For Elevators (AREA)
- Elevator Control (AREA)
- Forklifts And Lifting Vehicles (AREA)
- Spinning Or Twisting Of Yarns (AREA)
- Push-Button Switches (AREA)
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP02719881A EP1362000B1 (de) | 2001-02-22 | 2002-02-20 | Sicherheitseinrichtung für bewegbare elemente, insbesondere aufzüge |
BRPI0207516-4A BR0207516B1 (pt) | 2001-02-22 | 2002-02-20 | dispositivo de segurança para a monitoração de um elemento móvel, especialmente para elevadores. |
AT02719881T ATE428665T1 (de) | 2001-02-22 | 2002-02-20 | Sicherheitseinrichtung für bewegbare elemente, insbesondere aufzüge |
DE50213444T DE50213444D1 (de) | 2001-02-22 | 2002-02-20 | Sicherheitseinrichtung für bewegbare elemente, insbesondere aufzüge |
US10/645,327 US7014014B2 (en) | 2001-02-22 | 2003-08-21 | Safety device for monitoring a movable element |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE20103158U DE20103158U1 (de) | 2001-02-22 | 2001-02-22 | Mehrstufiger, positionsgesteuerter, reaktionsschnell und präzise auslösender Geschwindigkeitsbegrenzer für Aufzüge |
DE20103158.2 | 2001-02-22 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/645,327 Continuation US7014014B2 (en) | 2001-02-22 | 2003-08-21 | Safety device for monitoring a movable element |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2002068306A1 true WO2002068306A1 (de) | 2002-09-06 |
Family
ID=7953386
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2002/001804 WO2002068306A1 (de) | 2001-02-22 | 2002-02-20 | Sicherheitseinrichtung für bewegbare elemente, insbesondere aufzüge |
Country Status (8)
Country | Link |
---|---|
US (1) | US7014014B2 (de) |
EP (1) | EP1362000B1 (de) |
CN (1) | CN1239375C (de) |
AT (1) | ATE428665T1 (de) |
BR (1) | BR0207516B1 (de) |
DE (2) | DE20103158U1 (de) |
ES (1) | ES2322038T3 (de) |
WO (1) | WO2002068306A1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7353912B2 (en) | 2002-11-09 | 2008-04-08 | Thyssenkrupp Elevator Ag | Elevator system |
Families Citing this family (29)
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AU2003291124A1 (en) * | 2003-11-18 | 2005-07-14 | Otis Elevator Company | Elevator governor device |
PT1733991E (pt) * | 2004-04-06 | 2012-06-15 | Mitsubishi Electric Corp | Aparelho para elevador e método de controlo do aparelho |
WO2005102899A1 (ja) * | 2004-04-20 | 2005-11-03 | Mitsubishi Denki Kabushiki Kaisha | エレベータの非常止めシステム |
WO2005105647A1 (ja) * | 2004-04-27 | 2005-11-10 | Mitsubishi Denki Kabushiki Kaisha | エレベータ装置 |
EP1780160B1 (de) * | 2004-04-30 | 2011-12-28 | Mitsubishi Denki Kabushiki Kaisha | Anormalzustandsbremssystem für aufzug |
DE102004037486B4 (de) * | 2004-07-27 | 2006-08-10 | ThyssenKrupp Aufzüge GmbH | Signalband und System zum Bestimmen eines Bewegungszustandes eines bewegten Körpers sowie diese verwendende Vorrichtung zur Geschwindigkeitsbegrenzung des bewegten Körpers, insbesondere eines Aufzugfahrkorbes |
DE502005000701D1 (de) * | 2005-03-05 | 2007-06-21 | Thyssenkrupp Aufzugswerke Gmbh | Aufzuganlage |
JP2006298645A (ja) * | 2005-04-21 | 2006-11-02 | Inventio Ag | エレベータケージの速度を監視するための方法および検出システム |
DE102006018794A1 (de) * | 2006-04-22 | 2007-10-25 | Kraus-Maffei Wegmann Gmbh & Co. Kg | Verfahren und Vorrichtung zum Verlegen eines Brückenelements |
FI120828B (fi) * | 2007-02-21 | 2010-03-31 | Kone Corp | Elektroninen liikkeenrajoitin ja menetelmä elektronisen liikkeenrajoittimen ohjaamiseksi |
US8181749B2 (en) * | 2007-08-09 | 2012-05-22 | Mitsubishi Electric Corporation | Speed governor for an elevator |
FI121067B (fi) * | 2009-01-12 | 2010-06-30 | Kone Corp | Kuljetusjärjestelmä |
CN102348625B (zh) | 2009-03-16 | 2015-08-26 | 奥的斯电梯公司 | 过加速和过速检测与处理系统 |
BRPI0924457A2 (pt) * | 2009-03-16 | 2016-02-16 | Otis Elevator Co | sistema de segurança de elevador, e, elevador |
AT508496B1 (de) * | 2009-07-02 | 2012-04-15 | Priglinger Josef Dr | Fangvorrichtung für einen treppenlift |
JP2011121669A (ja) * | 2009-12-09 | 2011-06-23 | Nippon Otis Elevator Co | エレベータにおける電磁ブレーキの異常検出装置 |
JP5824044B2 (ja) | 2010-07-12 | 2015-11-25 | オーチス エレベータ カンパニーOtis Elevator Company | 速度位置検知システム |
CA2816359C (en) * | 2010-12-17 | 2019-02-19 | Inventio Ag | Monitoring device for detecting unintended departure of a lift cage from standstill |
EP2673232A4 (de) * | 2011-02-07 | 2017-11-22 | Otis Elevator Company | Aufzugsregler mit zwei auslösungsmechanismen auf separaten scheiben |
CN102897627A (zh) * | 2012-10-30 | 2013-01-30 | 路文强 | 一种带有应急助推器的电梯 |
CN103663031A (zh) * | 2013-07-17 | 2014-03-26 | 太仓市鸿欣工业产品设计有限公司 | 电梯跌落急救装置 |
US20170355560A1 (en) * | 2014-11-25 | 2017-12-14 | Otis Elevator Company | System and method for monitoring elevator brake capability |
ES2878452T3 (es) * | 2015-01-16 | 2021-11-18 | Kone Corp | Un aparato de rescate y un ascensor |
KR102441844B1 (ko) * | 2015-02-04 | 2022-09-08 | 삼성전자주식회사 | 회전체를 제어하기 위한 방법 및 그 전자 장치 |
CN105329735A (zh) * | 2015-12-01 | 2016-02-17 | 佛山市欧汇电梯配件有限公司 | 限速器 |
JP6490238B2 (ja) * | 2015-12-14 | 2019-03-27 | 三菱電機株式会社 | エレベーターの制御装置 |
EP3257799B1 (de) * | 2016-06-17 | 2022-02-23 | KONE Corporation | Redundante sicherheitsschaltung |
US11104545B2 (en) * | 2018-12-10 | 2021-08-31 | Otis Elevator Company | Elevator safety actuator systems |
EP3915915A1 (de) * | 2020-05-26 | 2021-12-01 | KONE Corporation | Aufzugsicherheitsüberwachungssystem, aufzugssystem, aufzugsantriebseinheit und verfahren zum betrieb eines aufzugs |
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2001
- 2001-02-22 DE DE20103158U patent/DE20103158U1/de not_active Expired - Lifetime
-
2002
- 2002-02-20 AT AT02719881T patent/ATE428665T1/de active
- 2002-02-20 DE DE50213444T patent/DE50213444D1/de not_active Expired - Lifetime
- 2002-02-20 CN CN02805410.5A patent/CN1239375C/zh not_active Expired - Fee Related
- 2002-02-20 WO PCT/EP2002/001804 patent/WO2002068306A1/de not_active Application Discontinuation
- 2002-02-20 BR BRPI0207516-4A patent/BR0207516B1/pt not_active IP Right Cessation
- 2002-02-20 EP EP02719881A patent/EP1362000B1/de not_active Expired - Lifetime
- 2002-02-20 ES ES02719881T patent/ES2322038T3/es not_active Expired - Lifetime
-
2003
- 2003-08-21 US US10/645,327 patent/US7014014B2/en not_active Expired - Lifetime
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
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US5869794A (en) * | 1995-11-08 | 1999-02-09 | Inventio Ag | Method and device for increased safety in elevators |
WO1998017575A1 (en) * | 1996-10-21 | 1998-04-30 | Kone Corporation | Procedure and apparatus for indicating elevator speed |
US6170614B1 (en) * | 1998-12-29 | 2001-01-09 | Otis Elevator Company | Electronic overspeed governor for elevators |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7353912B2 (en) | 2002-11-09 | 2008-04-08 | Thyssenkrupp Elevator Ag | Elevator system |
CN100469675C (zh) * | 2002-11-09 | 2009-03-18 | 蒂森克虏伯电梯股份有限公司 | 电梯系统 |
Also Published As
Publication number | Publication date |
---|---|
DE50213444D1 (de) | 2009-05-28 |
US7014014B2 (en) | 2006-03-21 |
BR0207516A (pt) | 2004-07-27 |
ATE428665T1 (de) | 2009-05-15 |
CN1494511A (zh) | 2004-05-05 |
DE20103158U1 (de) | 2001-09-27 |
EP1362000B1 (de) | 2009-04-15 |
CN1239375C (zh) | 2006-02-01 |
BR0207516B1 (pt) | 2012-12-11 |
ES2322038T3 (es) | 2009-06-16 |
US20040079591A1 (en) | 2004-04-29 |
EP1362000A1 (de) | 2003-11-19 |
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