EP1351878B1 - Notbremsvorrichtung für ein kabelgezogenes oder aufgehängtes fahrzeug und fahrzeug mit einer notbremsvorrichtung - Google Patents

Notbremsvorrichtung für ein kabelgezogenes oder aufgehängtes fahrzeug und fahrzeug mit einer notbremsvorrichtung Download PDF

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Publication number
EP1351878B1
EP1351878B1 EP02732111A EP02732111A EP1351878B1 EP 1351878 B1 EP1351878 B1 EP 1351878B1 EP 02732111 A EP02732111 A EP 02732111A EP 02732111 A EP02732111 A EP 02732111A EP 1351878 B1 EP1351878 B1 EP 1351878B1
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EP
European Patent Office
Prior art keywords
vehicle
load
cable
braking device
cables
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.)
Expired - Lifetime
Application number
EP02732111A
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English (en)
French (fr)
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EP1351878A1 (de
Inventor
Jean-Pierre Ramseier
Andrzej Wacinski
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Plumettaz SA
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Plumettaz SA
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Filing date
Publication date
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Publication of EP1351878A1 publication Critical patent/EP1351878A1/de
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Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C15/00—Safety gear
    • B66C15/02—Safety gear for retaining load-engaging elements in the event of rope or cable breakage

Definitions

  • the present invention relates to an emergency braking device for any vehicle, load or object, towed or insured by at least two cables whose normal operating voltages are equivalent.
  • the invention relates to similarly any vehicle, load or object, towed or insured by at least one cable, fitted with an emergency braking device and capable of being fitted with a shock absorbing device.
  • Cable cars like carts or funiculars traveling on an oblique plane, as well as elevators, freight elevators, facade maintenance cradles or crane hooks running vertically, are advantageously provided with traction systems comprising at least one pair of cables, each of said cables cables being subjected to an equivalent tensile force under normal conditions.
  • SU 1,470,653 A and EP-A-0 686 595 each describe a device for emergency braking for a load pulled by two strands of the same cable.
  • Application WO 01/38217 describes an elevator or a nacelle facade maintenance provided at each end with an on-board winch with two cables and differential means for balancing the tensile forces on these two cables.
  • Other means of balancing forces on two cables can be used, for example by suspending the platform or the vehicle tow at least one cable passing through a pulley or a block attached to the vehicle or nacelle thereby creating at least one pair of suspension strands.
  • cables of a pair of cables even if it is a pair of strands of the same cable.
  • the cables considered here may be cables used for the traction of said object or cables intended only to ensure the emergency braking of this object, the means of traction then being of another type.
  • the mass formed by the nacelle, winches and the personnel and equipment installed in the nacelle is suddenly accelerated, until the emergency braking device worked. Since generally the emergency braking device works by jamming or blocking a jaw on an intact cable, the stop imposed by this device is extremely abrupt with a very strong deceleration. This stopping shock can be harmful both for the personnel in the nacelle only for the material and the equipment which undergoes it.
  • a first object of the invention is therefore to propose a device for emergency braking capable of braking any object, load or vehicle towed by minus a pair of cables with equivalent tensile forces, which is improved compared to known devices.
  • Another object of the invention is that the emergency braking device above is able to operate without an external power source.
  • Another object of the invention is that the emergency braking device above does not require any fixed structural element for its operation.
  • Yet another object of the invention is that the braking device above is of simple construction, so as to be suitable for reliable and fast operation, minimizing the fall of the object, the load or towed or insured vehicle.
  • Yet another object of the invention is to provide a vehicle provided at least one emergency braking device as above.
  • Yet another object of the invention is to provide a vehicle provided an emergency braking device as well as a damping device.
  • Figure 1 shows a nacelle 1 of which there is a face 10 of a first end.
  • the nacelle 1 comprises a winch 2 of which distinguishes here only the two drums 20 and 21 each responsible for winding or unroll one of the cables 30 or 31 from a set of suspension cables 3.
  • the ends of the cables 30 and 31 opposite those wound on the drums 20 and 21 are fixed at fixed points, for example a beam suspension.
  • Such a nacelle corresponds to that described in the WO application 01/38217 mentioned previously.
  • Basket 1 which should be considered here as a load any hanging, further comprises a plate or plate 4 provided with a extension acting as slide 40, slidably mounted in a slide acting as a slide 41, itself fixed to the wall 10 of the nacelle 1.
  • the plate 4 is therefore able to move, in the direction vertical, of a determined value relative to the nacelle 1.
  • the end of the slide 40 opposite to that fixed to the plate 4 is fixed to a crosspiece 42 each end of which supports a damper 43,44, acting between said cross end and a fixing point 430, 440 integral with the wall 10 of nacelle 1.
  • An emergency braking device 5 includes a first brake device 50, capable of locking the cable 30 as well as a second device brake 51 acting on the cable 31.
  • Each of the brake devices 50 and 51 is actuated by a detector, respectively 52 and 53.
  • the detectors 52 and 53 can be of any known type, detecting by example a loss of tension, a slack streak or an overspeed, being of the type mechanical, electronic or electromechanical.
  • each detector may be able to control, in the event of an incident, the emergency braking of the two braking.
  • Plate 4 is shown here as consisting of a plate bearing the various components described on one side; in fact she will be from preferably covered with a case to protect these components.
  • the other end of the nacelle 1 is equipped in the same way.
  • the broken cable detector in the case where it is a slack or loss of tension detector and / or the detector mounted on the other cable, in the case of an overspeed detector, acts to control the actuation of the emergency braking devices 50 and / or 51.
  • Figure 1 shows that the plate 4 is connected to the nacelle 1 by two shock absorbers 43 and 44 operating under compression. It is obvious that we might just as well have one, or more than two, shock absorbers work in compression as here or in traction.
  • the shock absorber (s) can be of any known type, for example hydraulic, fluid or gas, or spring-loaded, or elastomeric compression in the case of shock absorbers operating at compression.
  • Figure 2 first shows a variant of the device for driving the nacelle where the winch 2 is no longer placed on the nacelle 1, but on a fixed part of the building in front of which the basket is moved.
  • the two cables 30 and 31 represent the two strands of the same cable passing through a return pulley 23, mounted on the nacelle 1 as described below.
  • the figure also shows a second embodiment of the damping device where the emergency braking device 5 as well as the return pulley 23 are mounted on the movable stage 4.
  • a device for slides 45 allows the relative movement of the plate 4 relative to the platform or suspended load 1.
  • the plate 4 is provided with a crosspiece 46, the two ends of which are connected to the points hooking 430 and 440 of the nacelle 1 by shock absorbers 43 and 44.
  • the operation of the device is absolutely similar to what has been described previously, the difference between the two embodiments residing in the fact that for the second embodiment of Figure 2, the mass undergoing a shock on stopping is more important than for the first embodiment, given that more elements are mounted on the plate 4.
  • Figure 2 also shows a hook 11 to properly represent the fact that the devices according to the invention can be applied to any load suspended:
  • Figure 3 shows yet another embodiment where the emergency braking device 5 as well as the damping device are carried over to one end of a support structure 6 in the form of a swan neck rigidly fixed to the nacelle 1.
  • This type of nacelle construction is generally used for very long nacelles on which the points of suspension cables are not arranged at both ends of the nacelle but are carried towards the interior of the nacelle.
  • the axes of the motors 22, winches 2 and drums 20 and 21, or idler pulleys are arranged perpendicular to the longitudinal axis of the nacelle 1.
  • the suspension cables 30 and 31 of each pair of cables are brought as shown here in a plane containing the axis longitudinal of the nacelle by means of a support 6 in the form of a swan neck and a set of pulleys 60.
  • the cables 30 and 31 of each pair could just as well be brought into a plane perpendicular to the axis longitudinal of the nacelle by support means 6 and pulleys 60 of same type.
  • the emergency braking device 5 comprises as previously a brake device 50.51 and a detector 52.53 for each cable, arranged on a plate 4, mounted movably relative to a portion 61 of the support 6.
  • One or more shock absorbers 62, mounted between the plate 4 carrying the braking device 5 and a fixed part 63 of the support 6, perform the same function as that described above.
  • Figure 3 shows a variant of the mobile fixing device of the plate 4 on the support structure 6, respectively on the nacelle 1.
  • the relative displacement of the plate 4 relative to the portion 61 of the support 6 is obtained by a set of links 47 forming a parallelogram deformable.
  • FIG. 4 Yet another embodiment is shown in Figure 4 where the winch 2, comprising the two drums 20 and 21 driven by the motor 22 are arranged on a fixed part of the installation, for example on the roof of the building served by nacelle 1.
  • the two drums 20 and 21 are driven by a single motor 22, being coupled together by a device differential 24, as described for example in application WO 01/38217.
  • the braking device 5 comprising the brakes 50 and 51 thus that detectors 52 and 53, operating as described above, is also arranged on a fixed part of the installation, respectively on the same part fixed than that where the winch is mounted 2.
  • the figure also shows two variants in the placement of the damping device.
  • the cable 30 is connected to the face end 10 of the nacelle 1 by means of a plate 4, the point of fixing the cable to the plate being marked at 302, which plate 4 is suspended from the nacelle by a shock absorber 48 connected to a fixed point 430 of the nacelle.
  • the braking device relating to the cable 31 is mounted on a plate 4, suspended from a fixed point 450 of the fixed part of installation by one or more shock absorbers 49.
  • the end of the cable 31 is directly fixed to the nacelle 1 by the fixing point 311.
  • the two cables 30 and 31 are connected to the nacelle in the same way, either directly, by points 301 and 302, the plate 4 then supporting the two detectors 52, 53 and the two brakes emergency 50, 51, or via the plate 4, as represented by the points of fixing 302 and 312.
  • the following figures show an emergency braking device according to a preferred embodiment of the invention.
  • Figure 5 shows a portion of such a device in which we see a first soft strand detector mounted on one of the cables and acting on the other cable for braking.
  • the system is highly schematized in order to better understand how it works.
  • the emergency brake 51 here comprises two brake shoes 510, arranged on both sides and at least partially enclosing the cable 31.
  • Said jaws are provided with guide ribs 511, capable of cooperating with corresponding 512 oblique grooves in a brake lever 513 as well as in a support plate 514.
  • the brake lever 513 is pivoting about an axis 515 fixed to the plate 4, being pushed in the direction indicated by arrow B by a spring 516 bearing on a fixed portion of plate 4.
  • the other end of the brake lever 513 is connected to the detector 52, itself constituted by a control lever 520 pivotally mounted around an axis 521 fixed to the plate 4, a first end of said lever carrying a caster 522 bearing against the cable 30, the other end of this lever being connected to the brake lever 513 by a link 523.
  • the roller 522 is no longer retained in position and the control lever 520 pivots around the axis 521 according to the direction of arrow A.
  • the brake lever 513 is no longer retained and can rotate in the direction of arrows B and C under the action of the spring 516, this pivoting controlling the bringing together of the two jaws 510, by the cooperation of ribs 511 and grooves 512 of the brake lever 513 and support plate 514.
  • Figure 6 shows the corresponding portion of the braking, comprising the second soft strand detector 53, capable of detecting the tension state of the cable 31 and capable of controlling the brake 50 on the strand 30.
  • the loss of cable tension 31 allows the lever 530 to pivot according to arrow A, which allows the brake lever 503 to pivot around the axis 505 under the action of the spring 506, thus bringing the two jaws 500 closer together guided by the ribs 501 and the grooves 502.
  • the braking device acts immediately to block movement lowering the vehicle or nacelle by locking on the other cable.
  • the emergency braking device as it comes to be described perfectly fulfills the conditions laid down, namely, being able to operate without an external power source or any external element, and whose construction is simple thus making its operation safe and fast.
  • the damping device as well as the braking device have been described as being mounted on a nacelle intended for maintenance of facades; more generally such devices can be mounted to operate as described, on any vehicle, charges or object pulled by at least one pair of cables whose tensions are equivalent, such as cable cars, funiculars, elevators, freight elevators or elevators.
  • vehicle is also meant any mobile system, without it is necessary for this system to transport a person.
  • the described damping device can be mounted on a vehicle fitted with an emergency braking device other than that described above, the damping device can even work from the as described when the vehicle or load is towed or suspended by a single cable.
  • the described emergency braking device can be mounted on a vehicle without a damping device or a damping device different from one of those described above.

Claims (17)

  1. Zum Einwirken auf ein Fahrzeug oder eine Last (1) geeignete Notbremsvorrichtung, welches / welche durch wenigstens zwei Seile (30, 31) oder Abschnitte ein und desselben Seils gezogen oder gesichert wird, deren Spannungen im Normalbetrieb gleichwertig sind,
       dadurch gekennzeichnet, dass sie Folgendes umfasst:
    eine zur Steuerung eines ersten, nur auf ein zweites Seil einwirkenden Bremsmittels (51) geeignete erste Feststellvorrichtung des weichen Abschnitts oder der fehlenden Spannung (52) auf einem zweiten Seil (31) und
    eine zur Steuerung eines zweiten, nur auf das genannte erste Seil einwirkenden Bremsmittels (50) geeignete zweite Feststellvorrichtung des weichen Abschnitts oder der fehlenden Spannung (53) auf dem genannten ersten Seil (30).
  2. Bremsvorrichtung gemäß Anspruch 1, dadurch gekennzeichnet, dass die Steuerungsübertragung zwischen dem Feststellmittel des weichen Abschnitts oder der fehlenden Spannung (52, 53) und dem zugeordneten Bremsmittel (51, 50) ausschließlich durch mechanische Mittel (520, 523, 513, 530, 533, 503) erfolgt.
  3. Bremsvorrichtung gemäß Anspruch 2, dadurch gekennzeichnet, dass jede Feststellvorrichtung des weichen Abschnitts oder der fehlenden Spannung (52, 53) einen ersten Hebel (520, 530) umfasst, von denen ein eine Stützrolle (522, 532) umfassendes Ende durch ein Federmittel (516, 506) gegen das zu kontrollierende Seil (30, 31) gepresst wird; wobei das andere Ende des genannten Hebels auf einen zweiten, zum Festhalten von zwei Bremsbacken (500, 510) in gelöster Position um das Seil, auf dem die Bremsung erfolgt, geeigneten Schwenkhebel (513, 503) einwirkt, wobei die Lösung des durch das zu kontrollierende Seil ausgeübten Aufstützens das Kippen des genannten ersten Hebels sowie des Schwenkhebels erlaubt, was unter der Einwirkung des genannten Federmittels das Einklemmen der beiden Bremsbacken gegen das zu bremsende Seil nach sich zieht.
  4. Bremsvorrichtung gemäß Anspruch 3, dadurch gekennzeichnet, dass wenigstens einer der genannten ersten Hebel (520, 530) derart angebracht ist, dass eine Neigung der Bremsvorrichtung (5) beziehungsweise des Fahrzeugs (1), an dem er befestigt ist, außerhalb eines bestimmten Wertes eine Betätigung der zugeordneten Bremsmittel nach sich zieht.
  5. Gezogenes oder durch wenigstens zwei Seile (30, 31), deren Spannungen im Normalbetrieb gleichwertig sind, gesichertes Fahrzeug oder Last (1), dadurch gekennzeichnet, dass es / sie wenigstens eine Notbremsvorrichtung (5) gemäß Anspruch 1 bis 4 umfasst.
  6. Fahrzeug oder Last (1) gemäß Anspruch 5, dadurch gekennzeichnet, dass es / sie darüber hinaus wenigstens eine Stoßdämpfervorrichtung mit wenigstens einem zwischen einer Platine (4) und einem festen Abschnitt (430, 440, 450, 63) der Anlage angeordneten Stoßdämpfer (43, 44, 48, 49, 62) umfasst.
  7. Fahrzeug oder Last (1) gemäß Anspruch 6, dadurch gekennzeichnet, dass der genannte feste Abschnitt der Anlage einem Abschnitt (430, 440, 63) des Fahrzeugs oder der Last entspricht.
  8. Fahrzeug oder Last (1) gemäß Anspruch 6, dadurch gekennzeichnet, dass der genannte feste Abschnitt der Anlage einem Abschnitt (450) des festen Umfeldes des Fahrzeugs oder der Last entspricht.
  9. Fahrzeug oder Last (1) gemäß Anspruch 6 bis 8, dadurch gekennzeichnet, dass der oder die Stoßdämpfer (43, 44, 62) für den Fall eines Betriebs der Notbremsvorrichtung zur Arbeit in Komprimierung vorgesehen ist / sind.
  10. Fahrzeug oder Last (1) gemäß Anspruch 6 bis 9, dadurch gekennzeichnet, dass wenigstens einer der Stoßdämpfer ein hydraulischer Stoßdämpfer ist.
  11. Fahrzeug oder Last (1) gemäß Anspruch 6 bis 9, dadurch gekennzeichnet, dass wenigstens einer der Stoßdämpfer ein Federstoßdämpfer ist.
  12. Fahrzeug oder Last (1) gemäß Anspruch 6 bis 9, dadurch gekennzeichnet, dass wenigstens einer der Stoßdämpfer ein Stoßdämpfer mit Elastomerkomprimierung ist.
  13. Fahrzeug oder Last (1) gemäß Anspruch 5 bis 12, dadurch gekennzeichnet, dass die genannte Notbremsvorrichtung (5) auf einer Platine (4) mit Befestigungsmitteln am Fahrzeug (40, 41, 45, 47) angebracht ist, die dazu geeignet sind, eine relative Bewegung zwischen der Platine und dem Fahrzeug, im Wesentlichen gemäß der Bewegungsrichtung des genannten Fahrzeugs zu ermöglichen, wobei die Amplitude der genannten relativen Bewegung begrenzt ist.
  14. Fahrzeug oder Last (1) gemäß Anspruch 13, dadurch gekennzeichnet, dass die Befestigungsmittel Gleit- und Führungsmittel (40, 41, 45) sind.
  15. Fahrzeug oder Last (1) gemäß Anspruch 13, dadurch gekennzeichnet, dass die Befestigungsmittel einen einen verformbaren Quader bildenden Schwingarme (47) umfassen.
  16. Fahrzeug oder Last (1) gemäß Anspruch 5 bis 15, dadurch gekennzeichnet, dass die genannte Platine (4) darüber hinaus den oder die Ab- und Aufwickelhaspel(n) (2) der genannten Seile oder eine Umlenktrommel (23) des genannten Seils umfasst.
  17. Fahrzeug oder Last (1) gemäß Anspruch 5 bis 16, dadurch gekennzeichnet, dass es aus einer Fassadenpflegegondel (1) gebildet wird.
EP02732111A 2001-01-18 2002-01-14 Notbremsvorrichtung für ein kabelgezogenes oder aufgehängtes fahrzeug und fahrzeug mit einer notbremsvorrichtung Expired - Lifetime EP1351878B1 (de)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
CH682001 2001-01-18
CH68012001 2001-01-18
CH119001 2001-06-28
CH11902001 2001-06-28
PCT/CH2002/000021 WO2002057176A1 (fr) 2001-01-18 2002-01-14 Dispositifs de freinage d'urgence et d'amortissement de chocs pour un ascenseur ou charges suspendu

Publications (2)

Publication Number Publication Date
EP1351878A1 EP1351878A1 (de) 2003-10-15
EP1351878B1 true EP1351878B1 (de) 2004-11-10

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EP02732111A Expired - Lifetime EP1351878B1 (de) 2001-01-18 2002-01-14 Notbremsvorrichtung für ein kabelgezogenes oder aufgehängtes fahrzeug und fahrzeug mit einer notbremsvorrichtung

Country Status (9)

Country Link
US (1) US6942070B2 (de)
EP (1) EP1351878B1 (de)
JP (1) JP3984915B2 (de)
CN (1) CN1235791C (de)
AT (1) ATE282004T1 (de)
DE (1) DE60201883T2 (de)
ES (1) ES2231697T3 (de)
HK (1) HK1063305A1 (de)
WO (1) WO2002057176A1 (de)

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EP1834917B1 (de) * 2006-03-16 2015-05-20 ThyssenKrupp Aufzugswerke GmbH Aufzugantrieb mit einem Elektromotor
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CN102674161B (zh) * 2012-05-31 2015-12-16 北京市建筑工程研究院有限责任公司 一种独立防坠系统
DE202012009836U1 (de) * 2012-10-15 2014-01-16 Liebherr-Werk Ehingen Gmbh Vorrichtung zur Beförderung von Personen mittels eines Krans - Kran mit Vorrichtung zur Beförderung von Personen
JP6045958B2 (ja) * 2013-03-29 2016-12-14 日立Ｇｅニュークリア・エナジー株式会社 免震吊上装置
WO2015173844A1 (ja) * 2014-05-14 2015-11-19 三菱電機株式会社 非常停止装置
US9750959B2 (en) * 2015-10-21 2017-09-05 Msa Technology, Llc Cable grab device
DE102015016351A1 (de) * 2015-12-17 2017-08-10 MiniTec GmbH & Co. KG Sicherheitseinrichtung zur Vermeidung unkotrollierter Bewegungen von Lasten
EP3398896B1 (de) 2017-05-05 2021-03-31 KONE Corporation Aufzugsanordnung und aufzug
US10099904B1 (en) 2017-05-25 2018-10-16 James Zaguroli, Jr. Safety arrangement for a hoist
EP3456674B1 (de) * 2017-09-15 2020-04-01 Otis Elevator Company Schlaffheitsdetektionssystem eines aufzugsspannelements und verfahren zur durchführung eines not-aus-betriebs eines aufzugssystems
DE102021131264A1 (de) 2021-11-29 2023-06-01 Liftkon GmbH Vorrichtung und Verfahren zur Vermeidung einer Aufweitung der Wicklungen eines Zugmittels bei Lastwechsel

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Also Published As

Publication number Publication date
US6942070B2 (en) 2005-09-13
CN1486276A (zh) 2004-03-31
JP2004523441A (ja) 2004-08-05
DE60201883D1 (de) 2004-12-16
JP3984915B2 (ja) 2007-10-03
EP1351878A1 (de) 2003-10-15
WO2002057176A1 (fr) 2002-07-25
HK1063305A1 (en) 2004-12-24
US20040074706A1 (en) 2004-04-22
CN1235791C (zh) 2006-01-11
ATE282004T1 (de) 2004-11-15
ES2231697T3 (es) 2005-05-16
WO2002057176A8 (fr) 2003-11-06
DE60201883T2 (de) 2005-12-01

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