EP2421785A1 - Betriebszustandsüberwachung von tragmitteln in einer aufzugsanlage - Google Patents
Betriebszustandsüberwachung von tragmitteln in einer aufzugsanlageInfo
- Publication number
- EP2421785A1 EP2421785A1 EP10713958A EP10713958A EP2421785A1 EP 2421785 A1 EP2421785 A1 EP 2421785A1 EP 10713958 A EP10713958 A EP 10713958A EP 10713958 A EP10713958 A EP 10713958A EP 2421785 A1 EP2421785 A1 EP 2421785A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- support means
- counterweight
- elevator car
- elevator
- support
- 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
- 238000012544 monitoring process Methods 0.000 title description 8
- 238000012806 monitoring device Methods 0.000 claims abstract description 59
- 239000000725 suspension Substances 0.000 claims description 83
- 238000009434 installation Methods 0.000 claims description 19
- 238000005259 measurement Methods 0.000 claims description 8
- 238000004146 energy storage Methods 0.000 claims description 2
- 239000000872 buffer Substances 0.000 description 12
- 238000001514 detection method Methods 0.000 description 7
- 238000006073 displacement reaction Methods 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000008030 elimination Effects 0.000 description 2
- 238000003379 elimination reaction Methods 0.000 description 2
- 230000000750 progressive effect Effects 0.000 description 2
- 239000013589 supplement Substances 0.000 description 2
- 230000001960 triggered effect Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000001502 supplementing effect Effects 0.000 description 1
- 239000012209 synthetic fiber Substances 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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
- B66B5/12—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions in case of rope or cable slack
-
- 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
- B66B5/12—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions in case of rope or cable slack
- B66B5/125—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions in case of rope or cable slack electrical
Definitions
- the present invention relates to a
- Elevator installation in which at least one monitoring device or device for operating state monitoring of the suspension element or the suspension element for the elevator cage or for the counterweight is provided in an elevator installation.
- An elevator installation usually comprises an elevator cage and at least one counterweight, which are moved in opposite directions in an elevator shaft.
- the elevator car and the at least one counterweight in this case run in or along guide rails, supported by at least one suspension element, which is guided via a driving traction sheave.
- the suspension means usually consists of one or more sheathed steel cables, one or more synthetic fiber ropes, one or more flat or profiled belts (V-ribbed belts) or a parallel composite of the respective ones mentioned
- each individual suspension element can be guided via its own traction sheave.
- monitoring devices have been developed for the detection of a relieved, floppy suspension element. They are based, as disclosed for example in the European publication EP-Al-I 953 108, on a spring-reinforced mounting of the entire drive and a deflection unit with at least two other rollers for the support means.
- a fall arrest device which prevents crashes of the counterweight during a suspension element breakage.
- the fall stop device is attached to the counterweight and triggers the setting of the counterweight as soon as a force threshold is exceeded. If in the solution according to WO 2006/082460 a tearing or loosening of the suspension element occurs, then a spring-mounted axle is displaced which triggers the fall stop device.
- a sensor device which monitors individual suspension elements, here especially chains.
- the corresponding sensor device is independent of the drive elements, pulleys and other supporting parts of the lifting system described.
- the document FR 2 618 420 discloses a device for monitoring a single support means on its guide roller, wherein when slack of the support means, a switch is actuated, which shuts off the drive.
- the device according to FR 2 618 420 thus monitors the slackness of a single rope and not the slackness of the entire suspension element strand. When a flaccid suspension means occurs over a electrical contact intervened in the control of the elevator car.
- the object of the present invention is to provide a monitoring device for the operating state of or the support means of a lift system, which is characterized by a simpler, low-setting and low-maintenance and thus more cost-effective structure and avoids the disadvantages of the prior art, in particular one To ensure improved detection of a slackened due to an accident support means.
- the solution of the problem is initially in the design and arrangement of a monitoring device which is disposed neither at the fixed attachment points of the support means, nor on the storage of the entire drive unit, but on a pulley for the support means.
- the disadvantage is avoided that the dead weight of the suspension element-which can be considerable, especially in the case of large delivery heights-is relevant in the detection measurement of the monitoring device.
- a deflection roller for the support means is provided on the suspension element section between the traction sheave and a first point of application of the support means to the elevator car, a deflection roller for the support means.
- an attack point of the suspension means on the elevator car or an attack point of the support means on the counterweight usually the support roller or idlers to be understood, through which the support means is guided to carry the elevator car and the counterweight.
- the elevator car can in principle be carried by a support means, which is guided only by a support roller.
- This one support roller is usually arranged approximately centrally or eccentrically on the upper side of the elevator car or the counterweight. This one support roller is thus wrapped approximately at 180 degrees of its circumference of the support means.
- the support means is not over-bent and stressed, the support roller must thus have a relatively large diameter.
- These support arrangements have the significant advantage that the support means is bent only by approximately 90 degrees of the circumference of a respective support roller.
- Such a looping of the elevator car or the counterweight can In turn, be realized by the support means the body of the elevator car or the counterweight actually underschlingt, ie, the at least two support rollers are arranged on the underside of the elevator car or the counterweight.
- the first point of application of the suspension means on the elevator car or the first point of application of the suspension element on the counterweight represents the single carrier roller or in the case of last described under-slipping carrier arrangements (be it at the bottom or at the top of the elevator car or the counterweight).
- the first support roller which is closest to the traction sheave, which relates to the unwound length of the suspension element.
- Elevator car or a second point of the support means on the counterweight is only in the awakeschlingenden support arrangements into consideration and represents the further away from the traction sheave roller.
- the carrying rollers described also represent conceptual pulleys at the same time, because they, like any other pulley, also deflect an original direction of the suspension element into a new one.
- the present invention describes a monitoring device which is connected to a
- Deflection pulley is arranged, so either on the support rollers and / or but also on pulleys that exercise no support function.
- the present application for a suspension usually defines two fixed attachment points to which the support means is fixed in place, for example, in the upper region of the elevator shaft.
- the support means is, for example, a generally approximately midway between these stationary support means attachment points arranged traction sheave and thus forms two loops.
- the elevator car is carried with at least one carrying roller, in the other with at least one carrying roller the counterweight.
- the support means thus forms a plurality of support means sections or support center pieces that vary in their respective length during operation of the elevator system.
- the support means sections lie between respective attack or force approach points. For example, a first suspension element section of the entire suspension element between one of the stationary attachment points and a (first) support roller of the
- a second support means portion of the entire support means is between the (first) support roller of the counterweight and the (first) point of application of the support means on the counterweight (or, depending on the suspension type, between a second support roller of the counterweight and a second point of application of the support means the counterweight) and the traction sheave.
- This second suspension element section is also referred to below as the counterweight-side suspension element section.
- Supporting means is formed between the traction sheave and a (first) point of application of the suspension element on the elevator car or a (first) carrying roller of the elevator car.
- This third suspension element section is also referred to below as the cabin-side suspension element section.
- a fourth and as a rule last suspension element section of the entire suspension element is between the (first) carrying roller of the elevator car and the (first) point of application of the suspension element on the elevator car or - if the elevator car is enclosed or carried by at least two carrying rollers - a second carrier role of
- Attachment point formed.
- first point of application of the suspension means to the elevator car or "first" point of the support means on the counterweight may be hereinafter both the support roller of the elevator car and the support roller of the counterweight meant if the counterweight or the elevator car carried by only one support roller is, as well as the traction sheave nearest, first support roller, if the counterweight or the elevator car is supported by at least two support rollers.
- deflection roller - which deflects the support means between the traction sheave and the first point of the support means to the elevator car - is slidably mounted with a standing under defined bias force storage element, so that a sensor at a relief of Suspension means emits a signal due to the sliding movement of the guide roller in its storage.
- This signal is preferably used for stopping the drive and the traction sheave or even for a temporary reversal of its direction of rotation.
- the deflection roller is in the normal operating state, ie under the load of the tensioned suspension element, at a stop.
- Proposed solutions from the prior art also provide a stop for the normal operating condition with loaded suspension means.
- the relief of the suspension element leads due to the spring biasing force to a movement of a transmission element away from the stop to a limit switch.
- the deflecting roller monitoring device according to the invention provides a sensor which is switched on in the normal operating state. However, as soon as the deflection roller is pushed away from the stop by the force storage element, the signal changes. Because so eliminating the need to cover a path to a limit switch, the detection accuracy increases and makes the monitoring device for wider load ranges used.
- the load range fluctuates between the empty elevator car in the highest position, ie at maximum wound suspension and full or even overloaded elevator car in the lowest position, so at maximum unwound suspension.
- Traction sheave i. both on the support means section between the traction sheave and the first point of the support means on the elevator car, as well as on the support means section between the traction sheave and the first point of the support means on the counterweight, in each case an inventive guide roller before.
- the further upward movement of the respective counterweight can be avoided not only when placing the counterweight on the shaft floor buffers or jamming the counterweight during its downward movement, but also when placing the elevator car on corresponding shaft floor buffers.
- a further embodiment variant relates to an elevator installation, in which the elevator car is straddled by the suspension element, that is, the elevator car stands on deflection rollers supporting it in a loop formed by the suspension element.
- the elevator car is straddled by the suspension element, that is, the elevator car stands on deflection rollers supporting it in a loop formed by the suspension element.
- support elements running parallel preferably two deflecting rollers according to the invention, each with a force storage element and a sensor, are arranged at the lower edges of the elevator car.
- a relief or relaxation in the suspension means is detectable and a signal for stopping the drive and the traction sheave or for reversing the direction of the traction sheave can be output.
- the Monitoring device works independently of the weight of the suspension strap loop.
- Pulleys are suitable for any type of suspension. It is irrelevant whether the elevator car and / or the counterweight suspended from a carrying role or underschlungen with two supporting pulleys or are carried in a so-called "backpack suspension", because in the described accident always a
- cabin-side support means and the counterweight side suspension means Stress difference between the cabin-side support means and the counterweight side suspension means occurs, in particular in the respective support means portion which is closer to the traction sheave.
- the terms “cabin side” and “counterweight side” support means section in turn stand for the respective support means sections between the traction sheave and the first point of the support means on the elevator car or on the counterweight. The fact that different stresses occur between these suspension element sections in the event of a fault exploits them
- the pulleys at the ends of the strut are, as in the previous design variants, according to the invention under a defined bias of a force storage element, so at relaxation of one of the two support means sections, the guide roller yields the bias, ie, moves outward and a sensor this movement used for the generation of the stop or reverse signal.
- the strut is preferably disposed between the traction sheave and another, fixedly arranged counter-roller for the support means or between two other, fixedly arranged counter-rollers for the support means.
- additional, fixed counter-rollers are preferably smooth and produce little contact friction with the suspension element.
- the last-described embodiment variant with a strut between the support means sections is characterized by cost efficiency, because with only two inventive deflection rollers accidents, be it in the elevator car or counterweight, are detectable.
- Embodiment variant can still be improved by the strut is equipped only on one side with an inventive deflection roller.
- the strut is arranged freely displaceable in its longitudinal direction.
- the latter can be realized by a rack and pinion or even by a slot guide.
- the strut can optionally be equipped at its ends with normal, fixed pulleys, without biasing a power storage element pushes the deflection roller against the support means, because the support means itself provides a bias voltage.
- the strut which is braced against the resistance of the two support means sections, then at
- the above-described inventive strut can be arranged with pulleys between these two support means.
- the relaxation of one of the two support means against the voltage of the intact, ready-to-use support means are detected.
- This not in the case of placing the elevator car or the counterweight on the shaft floor buffer - this would be relieved both support means, but with progressive elongation, with progressive error accumulation or break only one support means.
- This deflection roller profile carrier can be attached to the underside or else to the top of the elevator car and is preferably formed from two longitudinal profiles with a connecting web, ie H-shaped, but preferably the two side members are connected not only to one, but to two connecting webs , At least two of the four pulleys, preferably the two on the shaft inner side of the elevator car or the
- Counterweight are here as - as previously described - monitoring devices formed with a pulley, a force storage element and a sensor.
- the deflection roller profile carrier is to supplement the monitoring of the operating state of the support means further according to the invention equipped with at least one load torque sensor which is arranged in each of the two longitudinal profiles approximately in the middle.
- the load torque sensors for example
- Bending sensors are, on the one hand, able to measure synchronously whether the elevator car is ready for operation in the parallel guided suspension element loops or has jammed in the elevator shaft during the downward travel or is seated on the shaft bottom buffers. On the other hand, however, results in a different
- Measurement signal of the two load torque sensors exceeds a support ratio of preferably 60 to 40%, infer that a gradual expansion or error cumulation adjustment of one support means has set against the other, parallel support means or the elevator car so jammed on one side has that one support means is still loaded, the other, however, is relieved or broken.
- the load torque sensors thus output a corresponding control signal that is used to stop or reverse the upward movement of the counter load.
- Another advantage of the combination of the inventive deflection pulley monitoring device with the inventive load torque sensors monitoring device is in addition to the fact that more types of accident than previously detected, the fact that the usually arranged in the shaft bottom buffers load sensors can be omitted.
- the Umlenkrollen- monitoring device is in the case of the arrangement at the lower edges of the elevator car or the counterweight or in the previously described guide rollers profile carrier preferably designed so that the displacement of the guide roller or the compression and expansion of the energy storage element is in a direction which is at a 45-degree angle to the lower edge and the side wall of the elevator car or to the lower edge and the side wall of the counterweight.
- the Umlenkrollen- monitoring device can also be arranged on the upper edges of the elevator car, with or without previously described pulley profile carrier.
- an arrangement of one or more deflecting roller monitoring devices according to the invention on a deflection roller is possible, which is arranged in a suspension element fixing point in the elevator shaft.
- the deflection roller is mounted in a hinge housing, which is defined spring-resistant.
- the force storage element may be a conventional compression spring, which is guided in a housing or on a bolt.
- gas springs or leaf or disc springs into consideration, in which a contact sensor detects the displacement of a single sheet or plate.
- the sensor measurement is preferably carried out in an adjustable time interval. This avoids that the sensor or sensors already detect individual load torque peaks and subsequent reliefs due to the inherent elasticity as a fault, although none is present. Such short-term loading or unloading peaks can occur, for example, because there is only a brief jamming or breakaway, or a heavy load in the elevator car falls from a pile or, for example, passengers or children jump synchronously in the elevator car.
- Fig. 1 is a schematic representation of an elevator installation, each with a monitoring device to the stationary
- Attachment points of the support means according to the prior art 2 shows a schematic representation of an elevator installation according to the invention with a monitoring device according to the invention on supporting deflection rollers of the elevator car; 3 shows a schematic detail of a deflection roller monitoring device according to the invention; 4 is a schematic representation of a deflection roller profile carrier according to the invention on the underside of an elevator car;
- FIG. 5 shows a further embodiment variant of an elevator installation according to the invention with a monitoring device according to the invention with two deflection rollers on a strut
- FIG. 6 shows a further embodiment variant of a monitoring device according to the invention with two deflection rollers on a strut.
- Fig. 1 shows an elevator installation 100, as known from the prior art.
- an elevator car 2 is movably arranged, which is connected via a support means 3 with a movable counterweight 4.
- the support means 3 is driven during operation with a traction sheave 5 of a drive unit 6, which in the uppermost region of the elevator shaft 1, for example in the shaft head 12 or in
- Engine room 12 are arranged.
- the elevator car 2 and the counterweight 4 are guided by extending over the shaft height guide rails 7a and 7b and 7c.
- the elevator car 2 can operate at a delivery height h a top floor door 8, more floor doors 9 and 10 and a lowermost floor door 11.
- the elevator shaft 1 is formed by shaft side walls 15a and 15b, a shaft ceiling 13 and a shaft bottom 14 on which a shaft bottom buffer 22a for the counterweight 4 and two shaft bottom buffers 22b and 22c for the elevator car 2 are arranged.
- the support means 3 is at a fixed attachment point or Tragstofffixtician 18 a at the Shaft cover 13 attached and guided parallel to the shaft side wall 15a to a support roller 17a for the counterweight 4. From here, in turn, back via the traction sheave 5, to a carrying roller 17b for the elevator car 2 and to a second stationary attachment point or suspension point 18b on the shaft ceiling 13.
- a spring 19 is arranged, which receives the load of the support means 3.
- the traction sheave 5 continues its counterclockwise rotation and raises the elevator car 2 further, without the elevator car 2 would be compensated by the counterweight of the counterweight 4.
- the detection of the relief of the support means 3 thus takes place on a shaft wall side support means section 303a between the attachment point 18a and the support roller 17a and a (first) point 40 of the support means 3 on the counterweight 4 instead.
- Support means section 303b will fall down on the right side of the shaft of the counterweight 4, and the support roller 17a thus constitutes an obstacle to the detection of the slackening of the support means 3.
- the spring 19 of the known monitoring device 16a then presses a transmission element 20 due to the elimination of tensile load by the support means 3 to a limit switch 21, which turns off the drive 6.
- the monitoring device 16b on the elevator car side works analogously, in the case of placing the elevator car 2 further pulling the
- the force of the spring 19 must be designed so that it is at a load of empty elevator car 2 (for example 300 kg). plus the load of the suspension element between the monitoring device 16b and the carrier roller 17b (for example 100 kg) plus the load of the suspension element between the carrier roller 17b and the traction sheave 5 (100 kg), that is not yet triggered at an assumed 500 kg. Only in this way can, for example, jamming of the empty elevator car 2 be ensured in a highest shaft position, ie at the lowest possible weight of the suspension element.
- FIG. 2 shows schematically an elevator system 100a according to the invention, in which monitoring devices 16c and 16d are no longer combined with the attachment points 18c and 18d, but with deflection rollers 23a and 23b. If the elevator car 2 should be placed on the shaft floor buffers 22b and 22c with its lower course in its downward movement, the deflection roller monitoring devices 16c and 16d detect the slackening of the suspension strap which carries the elevator cage 2.
- Fig. 3 the inventive deflection pulley monitoring device 16c of Fig. 2 is shown schematically.
- the deflection roller 23a is in the support means 3 and in normal operating condition with an axle bracket 24 to a stop 25 at.
- a guide housing 27 for a force storage element 26 and a sensor 28 is arranged at a fixed to the elevator car 2 frame 29.
- the sensor 28 is in the normal operating position with the stopper 25 in contact.
- the force storage element 26 pushes the guide roller 23 a and the stop 25 of the sensor 28 away.
- the triggering of the sensor 28 thus takes place even at first irregularities and not only after a description of a path of the stopper 25 to a limit switch.
- the biasing force of the force storage element 26, which is exerted against the guide roller 23a via the stop 25 and the axle bracket 24 is less than the load of the empty elevator car 2 and advantageously unaffected by the weight of the support means 3.
- Fig. 4 shows schematically an inventive supplement of two parallel Umlenkrollen- monitoring devices 16e and 16f with a pulley profile carrier 30 at a parallel guided under loop of Elevator car 2 with a first support means 3a via pulleys 23c and 23d and a second support means 3b via pulleys 23e and 23f.
- the deflection roller profile carrier 30 is arranged on the underside of the elevator car 2 and consists of two longitudinal profiles 31a and 31b, which are connected to each other with two connecting webs 32a and 32b. Approximately in their half, at least one respective load torque sensor 33a or 33b is arranged in each of the two longitudinal profiles 31a and 31b.
- the load torque sensors 33a and 33b are able to measure a placement of the elevator car 2 by the elimination of their load. This can be the
- the load torque sensors 33a and 33b provide a measurement signal when distortion occurs due to unequal stresses in the support means 3a and 3b in the pulley profile carrier 30.
- the output of a control signal for stopping the elevator installation is preferably triggered as soon as the measurement of a load torque sensor 33a or 33b begins to exceed 60% of the cabin load and the measurement of the other
- Lastmomensensors 33b or 33a 40% begins to fall below.
- Fig. 5 shows schematically an elevator system 100b, are arranged at the deflection roller monitoring devices 16g and 16h on a strut 34a with pulleys 23g and 23 h.
- the strut 34a is arranged stationarily in the elevator shaft 1, and thus the deflection roller 23g constitutes a suspension element fixing point 42a for the suspension element 3 on a suspension element section 303c or the deflection roller 23h forms a suspension suspension point 42b for the suspension element 3 on a suspension element section 303d.
- the Tragstoff- section 303c extends from the traction sheave 5 to a (first) point of application 40 of the support means 3 on the counterweight 4, which in turn is in this case nothing more than the support roller 17a.
- the support means section 303d extends from the traction sheave 5 to a first point 41a of the Supporting means 3 on the elevator car 2, which is in this case the supporting guide roller 23a.
- the supporting deflection pulley 23b constitutes a second point 41b of the suspension element 3 on the elevator car 2.
- the carrying pulley 23a and / or the carrying pulley 23b may also comprise a monitoring device corresponding to the monitoring devices shown in FIGS -4 corresponds.
- the strut 34a with the pulleys 23g and 23h is disposed between the support means section 303c and the support means section 303d.
- the strut 34a is fixedly arranged in the elevator shaft 1 by means of fasteners 36, it can yield horizontally by means of an oblong hole 35 which, in the event of a fault, would exert an intact suspension element section 303c or 303d reciprocally on the other suspension element section 303d or 303c.
- the deflection roller monitoring devices 16g and 16h can be configured as before.
- the sensor can also be arranged on the fasteners 36.
- Fig. 6 shows schematically the elevator car 2 in a parallel sling suspension as in Fig. 4, with a first support means 3c and a second support means 3d, the are driven synchronously by traction sheaves 5a and 5b and by a common drive unit 6a.
- the guide rollers 23i and 23j presses against the support means 3c and 3d, or by means of - as previously disclosed - pulley monitoring devices 16i and 16j, is such a monitoring of the individual support means 3c and 3d of a parallel suspension means suspension realized.
- the deflection roller 23i thus constitutes a suspension center point 42c for the suspension element 3c on a suspension element section 303e and the deflection roller 23j constitutes a suspension center point 42d for the suspension element 3d on a suspension element section 303f.
- the support means portion 303e extends from the traction sheave 5a to a supporting pulley, which is covered in the illustrated lateral plan view of the elevator car 2 by a supporting pulley 23k.
- This concealed supporting pulley thus represents a first point of application of the support means 3c on the elevator car 2 and the visible supporting pulley 23k a second point 41d of the support means 3c on the elevator car 2.
- the non-visible supporting deflecting rollers and / or the supporting deflecting rollers 23k and 231 may comprise monitoring devices corresponding to the monitoring devices 16c-16f of FIGS. 2-4.
- Supporting means 3c and 3d the narrow or profiled sides of the support means 3c and 3d can represent an unfavorable guide surface for the counter-rollers 37e-37h and the guide rollers 23i and 23j.
- ropes with a round cross-section as support means 3c and 3d are used or a flat belt with approximately square cross-section, preferably at least with a side surface, the one provides enough wide guide surface, so that the support means 3c or 3d is not twisted.
- the counter-rollers 37e-37h can be arranged simultaneously as alignment rollers or alignment-roller pairs which rotate the cross-section of a flat belt above the deflection roller 23i or 23j, for example by 90 degrees, and turn it back again below the deflection roller 23i or 23j.
- a twist of, for example, approximately 60 degrees can be sufficient.
- the strut 34b is in contrast to FIG. 5 with preferably two pinions 39a and 39b on a fixed in the
- the Umlenkrollen- monitoring devices 16i and 16j may as usual have their own sensors, but optionally also a single sensor that detects the rotation of one of the pinions 39a or 39b is sufficient.
- the monitoring devices 16c-16f shown in FIGS. 2-4 can be combined with one another in a single elevator installation 100 with the monitoring devices 16g and 16h from FIG. 5 and / or the monitoring devices 16i and 16j from FIG.
- the monitoring devices 16g and 16h from FIG. 5 and the monitoring devices 16i and 16j from FIG. 6 can be combined with one another in a single elevator installation 100.
Landscapes
- Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
- Elevator Control (AREA)
- Maintenance And Inspection Apparatuses For Elevators (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP10713958.6A EP2421785B1 (de) | 2009-04-20 | 2010-04-15 | Betriebszustandsüberwachung von tragmitteln in einer aufzugsanlage |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP09158272 | 2009-04-20 | ||
PCT/EP2010/054959 WO2010121944A1 (de) | 2009-04-20 | 2010-04-15 | Betriebszustandsüberwachung von tragmitteln in einer aufzugsanlage |
EP10713958.6A EP2421785B1 (de) | 2009-04-20 | 2010-04-15 | Betriebszustandsüberwachung von tragmitteln in einer aufzugsanlage |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2421785A1 true EP2421785A1 (de) | 2012-02-29 |
EP2421785B1 EP2421785B1 (de) | 2013-09-18 |
Family
ID=41013281
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP10713958.6A Active EP2421785B1 (de) | 2009-04-20 | 2010-04-15 | Betriebszustandsüberwachung von tragmitteln in einer aufzugsanlage |
Country Status (7)
Country | Link |
---|---|
US (1) | US8857571B2 (de) |
EP (1) | EP2421785B1 (de) |
CN (1) | CN102405182B (de) |
BR (1) | BRPI1009909B1 (de) |
ES (1) | ES2438740T3 (de) |
HK (1) | HK1166486A1 (de) |
WO (1) | WO2010121944A1 (de) |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2012031961A1 (de) * | 2010-09-09 | 2012-03-15 | Inventio Ag | Lastmesseinrichtung für eine aufzugsanlage |
US9120645B2 (en) * | 2011-11-16 | 2015-09-01 | Spacelift Products, Inc. | Control system for a platform lift apparatus |
US9522806B2 (en) * | 2012-06-29 | 2016-12-20 | Inventio Ag | Deflection pulley cover for monitoring elevator car support |
EP2687472A1 (de) * | 2012-07-18 | 2014-01-22 | Inventio AG | Aufzugsanlage mit Sicherheitsvorrichtung |
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2010
- 2010-04-15 BR BRPI1009909-3A patent/BRPI1009909B1/pt active IP Right Grant
- 2010-04-15 CN CN201080017432.3A patent/CN102405182B/zh active Active
- 2010-04-15 ES ES10713958.6T patent/ES2438740T3/es active Active
- 2010-04-15 US US13/258,199 patent/US8857571B2/en active Active
- 2010-04-15 EP EP10713958.6A patent/EP2421785B1/de active Active
- 2010-04-15 WO PCT/EP2010/054959 patent/WO2010121944A1/de active Application Filing
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2012
- 2012-07-23 HK HK12107218.7A patent/HK1166486A1/xx unknown
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Also Published As
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ES2438740T3 (es) | 2014-01-20 |
CN102405182B (zh) | 2014-08-20 |
EP2421785B1 (de) | 2013-09-18 |
CN102405182A (zh) | 2012-04-04 |
US20120024637A1 (en) | 2012-02-02 |
HK1166486A1 (en) | 2012-11-02 |
WO2010121944A1 (de) | 2010-10-28 |
BRPI1009909B1 (pt) | 2019-10-29 |
US8857571B2 (en) | 2014-10-14 |
BRPI1009909A2 (pt) | 2016-03-15 |
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