EP2552549B1 - Dispositif de descente à câble - Google Patents

Dispositif de descente à câble Download PDF

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Publication number
EP2552549B1
EP2552549B1 EP10711691.5A EP10711691A EP2552549B1 EP 2552549 B1 EP2552549 B1 EP 2552549B1 EP 10711691 A EP10711691 A EP 10711691A EP 2552549 B1 EP2552549 B1 EP 2552549B1
Authority
EP
European Patent Office
Prior art keywords
rope
pulley
rappelling
guide roller
casing
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.)
Active
Application number
EP10711691.5A
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German (de)
English (en)
Other versions
EP2552549A1 (fr
Inventor
Uwe Bergmann
Dirk Bergmann
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Individual
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Individual
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Publication date
Application filed by Individual filed Critical Individual
Priority to PL10711691T priority Critical patent/PL2552549T3/pl
Publication of EP2552549A1 publication Critical patent/EP2552549A1/fr
Application granted granted Critical
Publication of EP2552549B1 publication Critical patent/EP2552549B1/fr
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Classifications

    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B1/00—Devices for lowering persons from buildings or the like
    • A62B1/06—Devices for lowering persons from buildings or the like by making use of rope-lowering devices
    • A62B1/14—Devices for lowering persons from buildings or the like by making use of rope-lowering devices with brakes sliding on the rope
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B1/00—Devices for lowering persons from buildings or the like
    • A62B1/06—Devices for lowering persons from buildings or the like by making use of rope-lowering devices
    • A62B1/08—Devices for lowering persons from buildings or the like by making use of rope-lowering devices with brake mechanisms for the winches or pulleys
    • A62B1/10—Devices for lowering persons from buildings or the like by making use of rope-lowering devices with brake mechanisms for the winches or pulleys mechanically operated

Definitions

  • the invention relates to a Abseilvorraum with a housing movable along a rope in which a pulley and a guide roller are rotatably mounted such that the rope is held in abseilen with the circumference of the pulley in frictional contact, with a braking device for the pulley, and with a coupling device for attaching a load to be dropped.
  • Such abseiling devices are needed, for example, for the maintenance personnel of wind turbines.
  • Modern wind turbines with a capacity of several megawatts currently reach hub heights of up to 160 m and are installed both on land (onshore) and in the sea (offshore) for power generation. These plants have at the top of the tower on a relatively large-sized engine house, which can provide up to 30 people during maintenance work. The high personnel deployment during maintenance and repair should minimize downtimes.
  • Access to the nacelle of the wind turbine is usually via a equipped with a climbing protection vertical ladder or by means of a passenger car inside the tower.
  • a climbing protection vertical ladder or by means of a passenger car inside the tower.
  • Descenders which allow a person to rappel off the platform in the nacelle outside the tower.
  • These devices have a downhill rope, for example a polyamide kernmantel rope, at both ends of which carabiner hooks are fastened, as well as a brake unit which limits the abseiling speed to a maximum of 2 m / s.
  • The109seilende person puts a harness or a rescue loop on, which is connected to the snap hook at the upper end of the Abfahrseiles. When rappelling, the rope runs over the pulley at the speed determined by the braking unit.
  • the object of the invention is to provide a descender, which makes it possible to rappel several loads, especially people, at the same time on the same rope.
  • the housing forms an extending between the guide roller and the pulley cable channel into which the cable is inserted in an extended state, and that the coupling device is arranged in a position on the housing, with respect to the cable channel to the side of the Pulley is offset out.
  • This abseiling device can, even if the rope is under tension because one or more people are already roped off, be attached to the rope so that the rope passes through the rope channel. If then the weight of the load on the Clutch device acts, so thereby the housing is pivoted so that the guide roller and the pulley press from opposite sides on the rope, with the result that the rope wraps around the pulley on a certain circumferential segment, so that the necessary frictional engagement between the rope and the pulley results.
  • the pulley preferably has on its periphery a V-shaped groove in which the rope, when it is stretched against the pulley, is clamped.
  • the housing preferably has a hinged lid which can be opened for insertion of the cable into the cable channel and which can then be locked in a position closing the cable channel.
  • abseiling device 10 has a housing 12, which preferably consists of metal and in which a guide roller 14 and a pulley 16 are rotatably mounted for a cable 18.
  • a housing 12 which preferably consists of metal and in which a guide roller 14 and a pulley 16 are rotatably mounted for a cable 18.
  • a hinged lid 20 from which in Fig. 2 only wall parts 22, 24 can be seen, which bear against the right and left narrow sides of the housing.
  • hinged lid 20 With hinged lid 20 open there is free access to a cable channel 26, the in Fig. 1 indicated by dash-dotted lines and runs in a straight line between the guide roller 14 and the pulley 16 therethrough.
  • a coupling device 28 is arranged at a corner of the housing 12 to which a load to be cut off can be attached.
  • the coupling device is formed by a Gurtsammlung 30 and only partially shown belt loop 32, to which by means of a snap hook or the like, the load can be attached.
  • the pulley 16 is connected by a gear 34 with a mounted on the housing 12 braking device 36, which may be formed for example by a known centrifugal brake.
  • the pulley 16 and a larger gear 38 of the gear 34 are rotationally fixed on a common shaft 40.
  • the gear 38 meshes with a smaller gear 42 which is seated on an input shaft of the braking device 26. In this way, the rotation of the pulley 16 is transmitted with translation to the speed on the centrifugal brake.
  • the pulley 16 has in its peripheral surface a V-shaped groove 44 which is narrower at the bottom than the diameter of the rope 18, so that the rope is clamped in the groove 44 when it is stretched against the pulley 16.
  • a cable guide 46 is mounted on the inside, as in section in Fig. 3 can be seen, forms a guide channel for the rope 18.
  • a hinge 48 pivotally connecting the flip cover 20 to the housing 12 and in the view in FIG Fig. 3 is arranged below the cable guide 46.
  • the opposite wall portion 24 of the hinged lid 20 ( Fig. 1 ) is locked by a latch 50 on the housing.
  • the latch 50 is resiliently biased into the locking position and engages on closing the hinged lid sebsttätig.
  • An unlocking pin 52 protruding from the housing allows the hinged lid to be unlocked and opened.
  • the hinged lid 20 may in turn be resiliently biased in the open position, so that it pops up after unlocking by itself.
  • Fig. 4 shows the abseiling device 10 in the state with open hinged lid 20.
  • the abseiling device 10 can now be found in the in Fig. 4 shown orientation of the side of the rope 18 are attached, so that the cable 18 is received in the cable channel between the guide roller 14 and the pulley 16.
  • the housing 12 is then turned by hand in a clockwise direction Fig. 4 pivoted so that the guide roller 14 and the pulley 16 to move from opposite sides to the rope 18 until finally the rope is received in a circumferential groove of the guide roller 14 and in the V-shaped groove 44 of the pulley 16.
  • the center of gravity of the housing 12 is approximately at the location of the axis of rotation of the pulley 16, in Fig. 4 So right of the rope channel.
  • the pivotal movement of the housing 12 is therefore supported by the weight of this housing.
  • the housing 12 thus enters a position in which the hinged lid 20 can be closed.
  • the offset moves to the hinge 48 ( Fig. 3 ) arranged cable guide 46 on the rope 18, and it presses with its lower end on the rope 18, which is thereby slightly deflected.
  • the housing 12 is thereby frictionally held with its cable guide 46 on the rope, so that the abseiling device 10 does not slip on the rope when the housing 12 is released.
  • FIG. 5 schematically shown an offshore wind turbine having a tower 54, a nacelle 56, a hub 58 and rotor blades 60.
  • the nacelle 56 accommodates a nacelle in which a larger number of persons 62 can be present during maintenance or repair work.
  • the wind turbine is equipped with a rescue device, which allows the maintenance personnel to evacuate in an emergency, for example, in the event of a fire in the machine house, in no time via a separate (not running through the tower 54) escape route.
  • This rescue device comprises an unwinding device 64 installed in the nacelle 56 for the rope 18.
  • the unwinding device 64 should provide a brake, e.g. B. have a centrifugal brake.
  • a motor for rewinding the rope 18 should be provided.
  • the rope 18 should preferably be a steel cable.
  • a weight 66 which receives a tensioning device 68 for the cable 18.
  • the weight 66 is formed by a buoyant liferaft.
  • the cable 18 is completely wound on the unwinding device 64, and the life raft is folded and stowed in the nacelle 56. If evacuation is required, the persons 62 go to a platform 70 formed in the nacelle 56, on which the unwinding device 64 is located above an exit hatch not shown in greater detail.
  • the liferaft hanging from the rope 18 is lowered through the exit hatch, and the rope is unwound by means of the unwinding device 64 until the liferaft reaches the water surface 72.
  • a release mechanism not shown, the deployment of the liferaft is triggered in a known manner by means of compressed air, so that the liferaft floats on the water surface.
  • the tensioning device 68 ensures that the rope is always kept under a certain, substantially constant tension. This prevents oscillation of the rope 18 and at the same time kept the drift of the liferaft within limits.
  • each person 62 applies a safety harness or loop 74, which is connected to the coupling device 28 of a descender device 10 of the type described above is connected. She then brings the abseiling device in the Fig. 4 shown manner on the rope 18 and can be glide down the rope. In this way, the persons 62 can be rappelled one after another over the rope 18.
  • the abseiling device 10 may be designed so that two persons can be simultaneously suspended hanging on the coupling device 28 of the same abseiling device.
  • the abseiling device may be secured at rest by a releasable locking pin comprising the pulley 16 or braking device 36 or an element of the transmission 34 blocked.
  • the locking pin is then pulled out when the person to be abseiled has attached himself to the coupling device 28 and before it can fall out of the exit hatch.

Landscapes

  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Emergency Lowering Means (AREA)
  • Braking Arrangements (AREA)

Claims (9)

  1. Dispositif de descente par câble comportant un boîtier (12) mobile le long d'un câble (18), dans lequel une poulie à câble (16) et un galet de guidage (14) sont supportés de manière rotative de telle sorte que le câble (18) est maintenu en contact avec frottement avec la circonférence de la poulie à câble (16) pendant la descente par câble, comportant un dispositif de freinage (36) pour la poulie à câble (16) et un dispositif de couplage (28) pour suspendre une charge à descendre par câble (74), caractérisé en ce que le boîtier (12) forme un canal de câble (26) s'étendant entre le galet de guidage (14) et la poulie à câble (16), dans lequel le câble (18) peut être placé dans un état étiré, et en ce que le dispositif de couplage (28) est agencé sur le boîtier (12) dans une position qui est décalée, par rapport au canal de câble (26), vers le côté de la poulie à câble (16).
  2. Dispositif de descente par câble selon la revendication 1, dans lequel la circonférence de la poulie à câble (16) comporte une gorge en forme de V (44) dont la largeur au fond est plus petite que le diamètre du câble (18).
  3. Dispositif de descente par câble selon la revendication 1 ou 2, dans lequel le boîtier (12) comporte un couvercle (20) pouvant être verrouillé dans la position fermée pour fermer le canal de câble (26).
  4. Dispositif de descente par câble selon la revendication 3, dans lequel le couvercle (20) est un couvercle à charnière.
  5. Dispositif de descente par câble selon la revendication 4, dans lequel sur un côté intérieur du couvercle à charnière (20) est agencé un guide de câble (46) qui, lorsque le couvercle à charnière est fermé, appuie sur le câble (18) au moins lorsque le boîtier (12) se trouve dans une position angulaire déterminée.
  6. Dispositif de descente par câble selon la revendication 5, dans lequel le guide de câble (46) est agencé de telle sorte qu'il appuie, à partir du côté opposé à la poulie de câble (16), sur une partie du câble (18) qui se situe sur le côté de la poulie à câble (16) opposé au galet de guidage (14).
  7. Dispositif de descente par câble selon l'une des revendications précédentes, dans lequel le dispositif de freinage (36) contient un frein à force centrifuge.
  8. Dispositif de descente par câble selon l'une des revendications précédentes, dans lequel la poulie à câble (16) est reliée au dispositif de freinage (36) par l'intermédiaire d'un engrenage (34).
  9. Dispositif de descente par câble selon l'une des revendications précédentes, dans lequel le boîtier (12) a une forme sensiblement rectangulaire lorsque vu parallèlement aux axes de la poulie à câble (16) et du galet de guidage (14), les axes de la poulie à câble (16) et du galet de guidage (14) sont sur l'axe principal de ce rectangle, et le dispositif de couplage (28) est agencé au niveau d'un coin du rectangle sur le côté de la poulie à câble (16) opposé au galet de guidage (14).
EP10711691.5A 2010-03-30 2010-03-30 Dispositif de descente à câble Active EP2552549B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL10711691T PL2552549T3 (pl) 2010-03-30 2010-03-30 Urządzenie do zjazdu po linie

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2010/054254 WO2011120566A1 (fr) 2010-03-30 2010-03-30 Dispositif de descente à câble

Publications (2)

Publication Number Publication Date
EP2552549A1 EP2552549A1 (fr) 2013-02-06
EP2552549B1 true EP2552549B1 (fr) 2015-02-18

Family

ID=43105506

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10711691.5A Active EP2552549B1 (fr) 2010-03-30 2010-03-30 Dispositif de descente à câble

Country Status (9)

Country Link
US (1) US9186527B2 (fr)
EP (1) EP2552549B1 (fr)
CN (1) CN102821817B (fr)
CA (1) CA2793543C (fr)
DK (1) DK2552549T3 (fr)
ES (1) ES2534642T3 (fr)
PL (1) PL2552549T3 (fr)
PT (1) PT2552549E (fr)
WO (1) WO2011120566A1 (fr)

Families Citing this family (11)

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Publication number Priority date Publication date Assignee Title
DE102011050630B4 (de) * 2011-05-25 2014-09-11 Dirk Bergmann Rettungsverfahren und Rettungsvorrichtung
CN103638613A (zh) * 2013-12-08 2014-03-19 颜从均 一种高楼下滑器
CN104224031B (zh) * 2014-08-29 2017-05-17 平湖普英特高层设备有限公司 擦窗机专用锁轨装置
NL2016343B1 (nl) * 2015-07-10 2017-02-02 Xsplatforms B V Inrichting voor het afdalen van personen uit een gebouw.
CN106422216B (zh) * 2016-11-29 2020-04-21 武威市津威环境科技有限责任公司 一种管式锁板攀登器
CN106843554A (zh) * 2016-12-29 2017-06-13 浙江八瓦文化创意发展有限公司 卷轴式鼠标垫
US10704623B2 (en) 2017-02-14 2020-07-07 Cory Robert Mahana Rope arrest-and-release device for use on utility poles
CN107432711B (zh) * 2017-04-11 2019-06-07 江苏水蓝生态环境科技有限公司 一种用于清洁的设备
CN106901663A (zh) * 2017-04-11 2017-06-30 广州犀鸟工业设计有限公司 一种清洁设备
CN107432712B (zh) * 2017-04-11 2019-06-11 江苏水蓝生态环境科技有限公司 一种稳固的清洁设备
CN112431545B (zh) * 2020-11-19 2022-11-01 陕西三和电子科技有限责任公司 一种应用于电力检修的装置

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Also Published As

Publication number Publication date
DK2552549T3 (en) 2015-03-30
PT2552549E (pt) 2015-05-19
EP2552549A1 (fr) 2013-02-06
CA2793543A1 (fr) 2011-10-06
US20130056303A1 (en) 2013-03-07
PL2552549T3 (pl) 2015-06-30
WO2011120566A1 (fr) 2011-10-06
ES2534642T3 (es) 2015-04-27
CN102821817B (zh) 2015-11-25
CA2793543C (fr) 2014-10-07
CN102821817A (zh) 2012-12-12
US9186527B2 (en) 2015-11-17

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