EP2477924A1 - Einrichtung zum manuellen lösen einer antriebsbremse in einer aufzugsanlage - Google Patents
Einrichtung zum manuellen lösen einer antriebsbremse in einer aufzugsanlageInfo
- Publication number
- EP2477924A1 EP2477924A1 EP10747033A EP10747033A EP2477924A1 EP 2477924 A1 EP2477924 A1 EP 2477924A1 EP 10747033 A EP10747033 A EP 10747033A EP 10747033 A EP10747033 A EP 10747033A EP 2477924 A1 EP2477924 A1 EP 2477924A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- drive brake
- elevator
- elevator car
- operating lever
- time element
- 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
- 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
- B66B5/027—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions to permit passengers to leave an elevator car in case of failure, e.g. moving the car to a reference floor or unlocking the door
Definitions
- the present invention relates to a
- Elevator installation in which at least one elevator car and at least one counterweight are moved in opposite directions in an elevator shaft, wherein the at least one elevator car and the at least one counterweight run along guide rails, carried by one or more support means. That or the
- Supporting means are guided over a traction sheave of a drive unit which has a drive brake.
- the present invention particularly relates to the drive brake. In the case of a power failure or other possible
- Elevator cabin by number of passengers or loading of material.
- the elevator car is prevented from being driven further on the traction sheave due to the high friction of the suspension element or the carrying means, despite the occurrence of a fault, and dangerous situations therefore occur.
- AI is an emergency system for a lift known. It includes an emergency power supply with a brake controller that is automatically activated to brake an axle.
- an electro-magnetic controller and an electro-magnetic brake release are provided, both of which Emergency power supply.
- the brake controller works intermittently, ie it becomes a so-called
- Stutter braking executed in order to lower the elevator car slowly in the shaft to a destination floor can.
- the electro-magnetic controller is activated automatically if the electromagnetic brake release fails.
- a passenger in the elevator car can operate a cable if the electro-magnetic controller, the electromagnetic brake release and the emergency power supply should fail.
- a cam or cam rotates as the axle rotates, reciprocating a lever that activates brake control and
- the elevator car is slowly lowered in the shaft to a destination floor.
- Elevator car off It is a security system with a base
- the object of the present invention is a
- the facility should provide an increased level of safety, due to its components and their interaction and by eliminating human-subjective factors as much as possible.
- a device is generally understood that is capable of switching on or off a function or being switched on together with the activation of a function itself and switching the function on or off again after the lapse of a defined period of time.
- the lever device is reset, so that a renewed manual operation can take place.
- the required distance of the elevator car from the point at which it is stuck to the nearest floor is divided into stages. In none of these stages is there a risk that the elevator car will accelerate freely because automatically after a relatively short period of time - the
- the piston is connected to at least one lifting rod or at least one pressure line with an actuator of the drive brake.
- a further inventive variant of a device for manually releasing a drive brake i5 uses a purely mechanical design variant
- a feather is here by the manual operating lever tightened so that they are in the rotation of a disc with their clamping force
- Design variant of a time element uses the gravity of a weight that, retarded by a thread, runs on an approximately vertical and fixed spindle or, conversely, the gravity of a spindle that runs in an approximately perpendicular and fixed mother. It is without
- Elevator car to the provided evacuation floor.
- a reset of this time element for example, by a rotation of
- the triggering of the actuating lever can thus be limited in this embodiment variant advantageously solely on the rotation of the spindle or the weight by 180 degrees.
- the reset can be done by a rotation 180 degrees, whereby the weight or the spindle will consequently run back on or in the thread. This running back can in principle also for the operation of the
- Actuator of the drive brake can be used, thus resulting in a further release cycle of the drive brake.
- Actuating lever can be started.
- Embodiment variant with a spindle in particular that the muscle power of the service man is not used directly for the release of the drive brake, but exclusively only for triggering a then automatically taking place, individual release cycle of the drive brake.
- Actuator brake actually triggers.
- Elevator car do not affect, but only the number of triggered individual release cycles of the drive brake, which then run each force independent and identical.
- the last-described embodiment variant can be realized in principle instead of a weight with an actuator that is spring-controlled or with a servomotor - preferably with a self-sufficient power supply - is moved past on a rail on the actuator of the drive brake.
- the drive brake can also be realized in that the time element does not act on an actuator of the drive brake, but the manual lever action of the actuating lever directly opens the drive brake and at the same time "switches on" the time element defined period back to its original position, the
- Actuating lever - on the time element or directly on the drive brake - can, in particular in view of the advantage that a device according to the invention for manually releasing the drive brake with a single, central control panel requires cost by means of a lever assembly
- a further and preferred embodiment variant of an inventive device for manually releasing the drive brake for emergency evacuation takes into account the fact that an automatic tendency to move the elevator car is present only when the elevator system, ie the
- Embodiment variants of a device according to the invention for manually releasing a drive brake can be combined in any manner with further balance correction devices according to the invention, which are described below.
- the balance correcting device provides that a further actuating lever in the form of a crank is arranged at the central mounting location for the actuating lever for the manual release of the drive brake. This crank is
- Elevator shaft is stretched and with the elevator car or the Counterweight is connected.
- the service man first actuates the actuating lever for manually releasing the drive brake and, if the elevator car does not move automatically,
- the optional RSUsche the crank is preferably reversible, so that the serviceman - secured by the
- this embodiment variant does not give the service man the choice in which direction he moves the elevator car. It works preferably
- Drive brake is optionally combined, provides at least one correction weight, which is preferably also preferably mechanically placed on the suspension element strand between traction sheave and counterweight.
- the correction weight is preferably fixed in the
- Elevator shaft arranged below the traction sheave and consists essentially of two cylindrical halves of the weight, with at least one joint are connected so that they
- the counterweight preferably has a progressively working spring on it
- the holding device of the correction weight is preferably designed so that it in the next successive reaching the counterweight with saddled correction weight of that position in the elevator shaft in which the
- Correction weight was held, automatically picks up the correction weight and locks.
- the correction weight can, as already mentioned, even by closing the two
- Weight halves form a guide that runs directly on the suspension or the support means. Preferably, however, this has
- Correction weight guide rollers in this guide on, or / and guide rollers, with which it is on the guide rails of the Counterweight can run.
- Correction weight can be at the following
- Holding device is discarded again.
- the inventive balance correction device also provides at least one correction weight, which is also spring-braked during normal operation and locked in a holding device such as an open jaw surrounds the suspension element strand.
- the two semi-cylindrical halves of the weight have, in contrast to the previous embodiment variant inside Negative profile, which is complementary to the cross section of the suspension element strand.
- the biasing force of the spring is high and the negative profile lined with non-slip material, so that the correction weight is permanently clamped to the suspension element strand.
- Correction weight which cushioned on the suspension element strand cushioned on the counterweight, is basically also suitable for the suspension element strand between traction sheave and elevator car, but requires a gentle cushioning on the top of the elevator car, which does not frighten the stuck passengers unnecessarily.
- the holding device for the correction weight in the elevator shaft is so swivel and / or slidably arranged that they have a position for the
- Balance correction device is especially for
- Sub-loop is located. This unfolds little relevance if the load (elevator car or counterweight) to be moved down is not in its highest position in the elevator shaft.
- the mentioned virtual distance of the correction weight then extends for a process of the elevator car up to the next floor. It is necessary, however, that after the evacuation - preferably by means of a service trip - the first position of the elevator car is approached, in which she was stuck.
- the correction weight thus arrives, without being able to cause a possible collision, directly back into its holding device which locks it in and thus removes it from the suspension element strand.
- Correction weight would collide with the shaft inner upper corner of the load. This short path may not be sufficient for a procedure of the elevator car to the next lower
- the or the correction weights are designed so narrow that they on the shaft inner side of the load
- Figure 1 is a schematic representation of an elevator system according to the prior art with a Bowden cable for manually releasing a drive brake.
- Fig. 3 is a schematic representation of a
- Fig. 4 is a schematic representation of another
- Fig. 5 is a schematic representation of another
- Fig. 6 is a diagram of the closing force of the drive brake in
- Fig. 7 is a schematic representation of a
- Fig. 1 shows an elevator system 100, as is known from the prior art, for example in
- Supporting means 3 is driven during operation by means of a traction sheave 5 of a drive unit 6, which are arranged in the uppermost region of the elevator shaft 1 in a machine room 12.
- the elevator car 2 and the counterweight 4 are guided by guide rails 7a, 7b and 7c extending over the shaft height.
- the elevator car 2 can operate at a delivery height h an uppermost floor door 8, further floor doors 9 and 10 and a lowermost floor door 11.
- the elevator shaft 1 is made of shaft side walls 15a and 15b, a shaft ceiling 13th and a shaft bottom 14 formed on the one
- the support means 3 is at a fixed
- a conventional device 200 for manually releasing a drive brake 22 comprises on each of the floors 8-11 each have an actuating lever 20a-20d, which allows a service man while observing the elevator car 2, by means of a Bowden cable 21, the drive brake 22 of
- Elevator car 2 upon release of the drive brake 22 by one of the actuating lever 20a-20d to the floor 9 or the floor 8 as a possible emergency evacuation floor.
- Fig. 2 shows schematically an inventive
- a single and central operating lever 20e is optionally arranged in the machine room 12, but it can also, in the case of so-called
- Cost-effectiveness of the device 200a which makes do with only a single, central operating lever 20e compared to the device 200 of FIG. According to the invention, the requirement of observing the elevator car 2 can be dispensed with because a time element 23 or a timer or a timing control according to the invention releases the drive brake 22a
- Elevator car 2 provided by transmitting / receiving units 24a and 24b.
- the power supply of this radio communication is for example via a battery 25, which is always kept charged by the rides of the elevator car 2 in normal operation.
- the time element 23 acts in the illustrated
- the connection between the Bowden cable 21a and the actuating lever 20e may be the
- Drive brake 22a may, as already mentioned, alternatively by a mechanical lever or rod arrangement with Be realized joints.
- Fig. 3 is an inventive
- an actuating lever 20f which is mounted in a fixedly arranged frame 26 by means of a pivot bearing 27, an approximately semicircular thumbwheel 28 is rotated.
- a toothing 29a engages in a complementary
- Gearing 29b on the outer wall of a cylinder 30 is provided with seals 31a and 31b on a
- Placed piston rod 32 which forms approximately centrally a collar 33 with holes 44 a and 44 b and thereby two
- Pressure chambers 34a and 34b which are preferably filled with hydraulic oil.
- the piston rod 32 is fastened in tabs 35a and 35b with screw fastenings 36a and 36b to the stationarily arranged frame 26, so that movements of the actuating lever 20f or rotations of the adjusting wheel 28 via the intermeshing toothings 29a and 29b to a linear displacement movement of the cylinder 30 along an axis 43 of the piston rod 32 lead.
- this results in an overpressure in one of the pressure chambers 34a or 34b and at the same time in the other pressure chamber 34b or 34a
- Vacuum which seeks compensation in a defined period of time and thus pushes the cylinder 30 back into a central position (in the case of equally large pressure chambers 34a and 34b), in which the collar 33 again stands in the center of the cylinder 30.
- Hydraulic oil and the diameter of the bores 44a and 44b in the collar 33 are the relevant factors for the
- Time span in which pressure equalization takes place is optionally also possible, between the inner walls of the cylinder 30 and the collar 33, surrounding the piston rod 32, each to arrange a spring.
- the outer wall of the cylinder 30 has diametrically opposite to the toothing 29b a paragraph 37, in which a roller 38 is mounted.
- the roller 38 presses against an actuator 39 of the only indicated drive brake 22b.
- the actuator 39 has a concave shape 40 - and optionally also a recess 41 - against the pressure of the roller 38 for an approximately maximum closing pressure of
- Drive brake 22b provides. Now, when the actuating lever 20f the cylinder 30 along the axis 43 moves down in a direction Z u or up in a direction Z Q and thus the shoulder 37 leaves the approximately central position on the concave formation 40, the actuator 39 opens against the Pressure of unspecified springs of the drive brake 22b by a
- the device 200b according to the invention for manually releasing the drive brake 22b can be operated both in the direction Z Q and in the direction Z u .
- the actuating lever 20 f its initial position the actuating lever 20 f its initial position
- closed drive brake 22b corresponds, has in a vertical Z and its operation is possible only in one direction, namely in the direction Z u , to a horizontal X.
- the toothing 29a needs in this case only approximately one
- FIG. 4 shows a further embodiment variant of a time element 23b according to the invention which, in contrast to the embodiment variant of a time element 23a according to the invention from FIG. 3, functions purely mechanically and forms a device 200c according to the invention for manual release of a drive brake 22c in the ensemble shown ,
- An actuating lever 20g can be transferred from the vertical Z in the horizontal X. This latches in
- Locking mechanism 45 and biases a spring 46 so that a gear 47a with a toothing 48a or a friction wheel and a gear 47b is rotated with a toothing 48b or a friction wheel in the rotational directions shown.
- a ratchet 49 is fixed by means of a screw 50, which forms, for example, four segments 51a-51d.
- a roller 52 is under the bias of a spring, not shown, of the drive brake 22c on the segments 51a-51d of
- the device 200c for manually releasing the drive brake 22c according to the invention thus releases the drive brake 22c in a timed manner by the spring 46, which can be selected with regard to its force to effect the rotation of a single segment 51, ie a single release cycle
- the duration of a release cycle of the drive brake 22c depends on the force of the spring 46 and the Speed of rotation of the RSUsche 49, as well as of the
- the segments 51a-51d can have identical circular arc-shaped surfaces on both flanks.
- the device 200c for manual release of the drive brake 22c requires that the actuating lever 20g has an automatic latching mechanism 45 so that the tension of the spring 46 can build up and be transmitted to the gear 47a.
- the actuating lever 20g for re-actuation the. Must
- Fig. 5 shows schematically another
- Embodiment variant of an inventive time element 23c the component of a further embodiment variant of an inventive device 200d for manually releasing a
- Drive brake 22d is.
- An actuating lever 20h sets, pulled out of the plane, by means of a driver or
- the weight 58 has a not-shown internal thread, which is an external thread 60 of an approximately vertical
- the external thread 60 extends continuously from an upper end 61a of the spindle 59 to a lower end 61b of the spindle 59 and has a pitch which begins at the upper end 61a with zero or at least with another, for example, greater pitch.
- the weight 58 thus has no tendency to move in its highest position, because its thread in the thread with
- Driver 57 initiated left rotation anyway freely on the spindle 59 down in the direction Z u and happens here an actuator 62 which is fixed to a strut 63 and is arranged in a joint 70a and a guide 64 in a frame 65.
- the pressure of the weight 58 against the actuator 62 generates a translational movement of a mounted in another joint 70 b ram 71 in the horizontal X, the
- a ring gear 67 is mounted in a bearing 66 in which this side of its center, the spindle 59 is arranged.
- Operating lever 20i triggers a rotation of the ring gear 67 by 180 degrees.
- the spindle 59 beyond the centrally located bearing of the ring gear 67 to be in the reverse position.
- the weight 58 thus automatically rotates from the then top end 61b of the spindle 59 - at this end 61b, unlike the opposite end 61a, the pitch is identical to the pitch at the principal longitudinal extent of the spindle 59 - back to the end 61a now below, in the different pitch in, resulting in a clamping of the weight 58 on the thread 60.
- the service man or the rescue personnel is obliged after this first flipping the operating lever 20i lapse a predetermined period of time until the weight 58 in the lowest position with different
- the spindle 59 also consistently equipped with a normal (for example, trapezoidal or rectangular) thread.
- this requires a triggering mechanism by the actuating lever 20h, for example in the form of a spring-loaded pawl at both ends 61a and 61b of the spindle 59, to which the weight 58 on the lower end 61b of the spindle 59 automatically springs up and engages, so that on the one hand the weight 58 is not already begins to run back during the following pivoting 180 degrees and on the other hand, a defined start by the operating lever 20h can be done.
- Closing value 81 has reached, the drive brake 22, the elevator car 2 free. This is followed by a first phase in which the closing force F abruptly drops to zero, remains for the duration of a solution cycle Lz x at this zero value and then by opening or closing the
- Time element 23 (depending on the mode of operation of the drive brake 22) suddenly reaches the release or closing value 81 again. From here, the drive brake 22 again builds its closing force F up to the maximum closing force F max . The first phase of the release or closure value
- Closing value 81 results in the first release cycle Lzi, in which the elevator car 2 moves at an average speed 0vi.
- a second actuation of the time element 23 is displayed in a second actuation time 80b and a third in a third actuation point 80c, which in each case follows an analogous graph, with corresponding release cycles Lz 2 and Lz 3 and average speeds 0v 2 and 0v 3rd
- the diagram shows that, quasi as
- the elevator car 2 reaches during a release cycle
- Lz is an average speed 0v and, as a result, depending on the number of actuated release cycles Lz a middle
- FIG. 7 schematically shows a variant of an inventive balance correction device 300.
- an Anklemm position 79 in a stationary arranged holding device 72, two
- Weight halves 73a and 73b held so that they enclose the support means 3 in an open state C-shaped.
- the two weight halves 73a and 73b are toward the holding device 72, as with a hinge, with at least one hinge 77
- This joint 77 is spring-braced with a spring 78 only indicated only and forms extensions not shown in detail, the pliers like in likewise not shown tapered retaining webs of
- Holding device 72 are held. If by means of a
- the holding device 72 is released, the extensions slide out of the retaining tracks and the spring 78 closes the hinge 77 and the weight halves 73a and 73b to a correction weight 75, which with guides 74a and 74b on the Suspension means 3 can slide down the gravity following.
- the guides 74a and 74b may be provided with rollers.
- a - preferably progressively working - spring 76 is arranged on the upper side of the counterweight 4.
- the counterweight 4 is additionally weighted with the weight of the correction weight 75 and the
- Counterweight 4 suitable.
- correction weights 75 which are based on the same principle, but with a force fit optionally on the
- Traction sheave 5 and the elevator car 2 are clamped, as described in the general description of the present patent application.
Landscapes
- Cage And Drive Apparatuses For Elevators (AREA)
Abstract
Description
Claims
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP10747033.8A EP2477924B1 (de) | 2009-09-14 | 2010-08-26 | Einrichtung zum manuellen lösen einer antriebsbremse in einer aufzugsanlage |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP09170225 | 2009-09-14 | ||
| EP10747033.8A EP2477924B1 (de) | 2009-09-14 | 2010-08-26 | Einrichtung zum manuellen lösen einer antriebsbremse in einer aufzugsanlage |
| PCT/EP2010/062455 WO2011029727A1 (de) | 2009-09-14 | 2010-08-26 | Einrichtung zum manuellen lösen einer antriebsbremse in einer aufzugsanlage |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP2477924A1 true EP2477924A1 (de) | 2012-07-25 |
| EP2477924B1 EP2477924B1 (de) | 2014-10-29 |
Family
ID=41510533
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP10747033.8A Not-in-force EP2477924B1 (de) | 2009-09-14 | 2010-08-26 | Einrichtung zum manuellen lösen einer antriebsbremse in einer aufzugsanlage |
Country Status (2)
| Country | Link |
|---|---|
| EP (1) | EP2477924B1 (de) |
| WO (1) | WO2011029727A1 (de) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| PL397479A1 (pl) * | 2011-12-21 | 2013-06-24 | Instytut Chemii Organicznej Polskiej Akademii Nauk | Nowe, fluorescencyjne barwniki heterocykliczne i sposób ich otrzymywania |
| CN107572336B (zh) * | 2017-10-18 | 2023-03-03 | 杭州道勒斯科技有限公司 | 电梯启闭牵引一体式应急操控设备 |
| CN110436297B (zh) | 2018-05-03 | 2022-04-29 | 奥的斯电梯公司 | 制动盘释放装置、盘车装置、电梯救援套件和方法 |
| CN110844736B (zh) | 2018-08-20 | 2022-08-23 | 奥的斯电梯公司 | 电梯平衡载救援装置、电梯及电梯平衡载救援方法 |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FI103498B (fi) | 1996-09-05 | 1999-07-15 | Kone Corp | Järjestely hissikoneiston jarrun avaamiseen |
| US6848544B2 (en) | 2001-01-26 | 2005-02-01 | Inventio Ag | Method and equipment for the evacuation of lift passengers |
| DE20208460U1 (de) | 2002-05-31 | 2002-09-05 | Wang, Chiu Nan, Fengyuan, Taichung | Schutzeinrichtung gegen ein Trägheitsrutschen einer Aufzugskabine während des Lösens einer Bremse bei einem Notfall |
| US6966409B2 (en) | 2003-09-09 | 2005-11-22 | Jiun Jyh Wang | Backup power device for elevator |
-
2010
- 2010-08-26 EP EP10747033.8A patent/EP2477924B1/de not_active Not-in-force
- 2010-08-26 WO PCT/EP2010/062455 patent/WO2011029727A1/de not_active Ceased
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2011029727A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2011029727A1 (de) | 2011-03-17 |
| EP2477924B1 (de) | 2014-10-29 |
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