EP0416079B1 - Selbstblockierende abseilvorrichtung mit zwei blockierstellungen - Google Patents

Selbstblockierende abseilvorrichtung mit zwei blockierstellungen Download PDF

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Publication number
EP0416079B1
EP0416079B1 EP90904864A EP90904864A EP0416079B1 EP 0416079 B1 EP0416079 B1 EP 0416079B1 EP 90904864 A EP90904864 A EP 90904864A EP 90904864 A EP90904864 A EP 90904864A EP 0416079 B1 EP0416079 B1 EP 0416079B1
Authority
EP
European Patent Office
Prior art keywords
pulley
rope
jamming
flange
descender
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
EP90904864A
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English (en)
French (fr)
Other versions
EP0416079A1 (de
Inventor
Paul Petzl
Pierre Petzl
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.)
CAMBIO RAGIONE SOCIALE;ZEDEL
Original Assignee
Petzl SA
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Petzl SA filed Critical Petzl SA
Publication of EP0416079A1 publication Critical patent/EP0416079A1/de
Application granted granted Critical
Publication of EP0416079B1 publication Critical patent/EP0416079B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B29/00—Apparatus for mountaineering
    • A63B29/02—Mountain guy-ropes or accessories, e.g. avalanche ropes; Means for indicating the location of accidentally buried, e.g. snow-buried, persons

Definitions

  • the object of the invention is to improve the reliability and the grip of a self-locking descender with two locking positions.
  • the descender according to the invention is characterized in that the pivoting support comprises, opposite the control lever, a wedge cleat separated from the second pulley by a space for passage of the the rope, and that the first pulley has a second braking surface, against which the rope is pressed by the catch when the control handle is moved to a second locking position.
  • the articulation axis of the movable support is eccentric with respect to the imaginary center of the second pulley, so as to increase the tightening torque of the rope when the control lever is biased towards the first locking position.
  • the space for passage of the support between the second pulley and the jamming cleat is crossed by two adjacent strands of a loop of the rope, which is wound on the first pulley.
  • the angled position of the control handle facilitates gripping and actuation by the user during travel to the intermediate unlocking position.
  • the descender is attached to the harness by means of a carabiner and a connecting strap.
  • the carabiner is positioned in oblong slots of decreasing sections made at the ends of the flanges.
  • a self-locking descender 10 with two locking positions comprises a pair of pulleys 12,14 housed in a transverse gap 16 formed between two parallel flanges 18,20.
  • the first pulley 12 is fixedly mounted by means of a screw 21 on the first base flange 18, while being immobilized in rotation.
  • the upper circular sector of the pulley 12 is provided with a groove 22 for guiding the rope 24.
  • the other part, oriented towards the second pulley 14, is equipped with a first braking surface 26 and a second surface braking 28.
  • the two surfaces 26, 28 are substantially rectilinear, forming an obtuse angle between them.
  • a fixed axis 30 projects, extending parallel to the screw 21 for fixing the first pulley 12.
  • a mobile support 32 On the axis 30 is mounted with limited rotation a mobile support 32, separate from the flange base 18 by a small axial clearance, allowing the pivoting of the support 32 inside the gap 16 in a plane parallel to the base flange 18.
  • One of the ends of the movable support 32 is extended laterally by a lever command 34, the manual actuation of which controls the blocking and unblocking of the rope 24, as well as the speed of descent.
  • the other end of the support 32 is provided with a wedging cleat 36, while the second pulley 14 is immobilized in rotation on the support 32 between the lever 34 and the cleat 36.
  • the second pulley 14 is shaped as a cam comprising a circular groove sector 38 for guiding the rope 24, and a boss 40 intended to cooperate with the first braking surface 26.
  • a circular orifice 42 passes through the pulley 14 to allow the mounting of the support 32 movable on the fixed axis 30 of the base flange 18.
  • the orifice 42 is eccentric relative to the imaginary center 44 of the circular groove 38 of the second pulley 14, so as to increase the torque during an automatic blocking following a fall.
  • the orifice 42 is located between the fictitious center 44 of the groove 38 and the straight edge 46 arranged opposite the groove 38.
  • a space 48 for passage of the rope 24 is provided between the second pulley 14 and the wedging cleat 36.
  • the second flange 20 for closing the transverse interval 16 is mounted to scissor tilt on the fixed axis 30 between a spaced-apart position (fig. 1) suitable for engagement along an S of the cord 24 in the grooves 22,38 for guiding the two pulleys 12,14, and a closed position (fig. 7) in which the two flanges 18,20 are arranged opposite one another, preventing any escape of the rope 24 out of the interval 16.
  • the first base flange 18 advantageously comprises a square edge 50 oriented in the direction of the second flange 20.
  • the first flange 18 is provided with an oblong opening 52 of decreasing section downwards.
  • the second flange 20 also comprises a light 54 of the same profile, capable of coming into alignment in the closed position with the light 52 combined, to allow the passage of a fastening carabiner, connected to the user's harness harness.
  • An articulated pawl is associated with the light 52 of the second flange 20 to facilitate the introduction of the carabiner.
  • the user After tilting of the second flange 20 towards the separated position (fig. 1), the user wraps the cord 24 around the groove 38 of the second pulley 14, followed by passage through the intermediate space delimited by the edge 46 and the first braking surface 26.
  • the rope 24 then passes through the groove 22 of the first pulley 12, then into the space 48 adjacent between the wedging cleat 36 and the edge 46.
  • the reclosing of the second flange 20 traps the rope 24 in the interval 16, and any accidental separation of the flanges 12,14 is excluded by the presence of the carabiner in the slots 52,54.
  • the decreasing section of the lights 52, 54 allows correct positioning and centering of the carabiner regardless of its size.
  • Figure 2 shows the descender 10 in the unlocked position, corresponding to the intermediate position of the control handle 34, allowing the user to descend the movement along the vertical rope 24.
  • the speed of descent is controlled by the friction of the rope 24 in the two grooves 22,38 of the pulleys 12,14.
  • the coming of the handle 34 in the intermediate position results from a voluntary action exerted manually by the user in the direction of arrow F1. This results in a predetermined pivoting of the support 32 around the axis 30 and anti-clockwise, so as to neutralize the reaction of the boss 40 and the jamming cleat 36 on the rope 24.
  • FIG. 5 shows the state of the descender 10 out of service, in particular during transport.
  • the shape and the eccentricity of the second pulley 14 allow, in the absence of a rope 24, free pivoting of the control lever 34 beyond the first position, without the boss 40 touching the first braking surface 26.
  • the handle 34 is then substantially parallel to the flanges 18, 20, and is no longer projecting. The transport of the descender 10 is then carried out without discomfort for the user.
  • the orifice 42 of the second pulley 14 is arranged coaxially on the imaginary center 44.
  • the invention also extends to a descender for double return rope, in which each pulley 12, 14 has two juxtaposed grooves for guiding the rope 24.

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  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Emergency Lowering Means (AREA)
  • Pulleys (AREA)

Claims (10)

  1. Selbstblockierende Abseilvorrichtung mit zwei Blockierstellungen zum Abseilen eines Benutzers entlang eines Seiles (24), mit:
    - einer ersten Grundplatte 18, die mit einer ersten feststehenden Seilrolle 12 versehen ist, welche bezüglich einer sich senkrecht zur ersten Platte 18 erstreckenden Gelenkachse 30 versetzt ist,
    - einer zweiten Seilrolle 14, die fest mit einer beweglichen Halterung 32 verbunden ist, welche um die Achse 30 schwenkbar in einer Ebene parallel zur Grundplatte 18 angeordnet ist,
    - einem Betätigungshebel 34, der der Anordnung aus Halterung 32 und zweiter Seilrolle 14 zugeordnet ist, um eine Klemmanordnung mit zwei Blockierstellungen für das Seil 24 zu bilden, wobei letzteres in Führungsrillen 22, 38 die beiden Seilrollen 12,14 umschlingt und eine Freigabe in einer Zwischenstellung des Betätigungshebels 34 erfolgt,
    - einer zweiten Platte 20 parallel zur ersten Grundplatte 18, wobei die beiden Seilrollen 12,14 in dem Raum 16 zwischen ihnen eingesetzt sind und die zweite Platte 20 verschwenkbar ist, um das Umschlingen der Seilrollen 12,14 durch das Seil 24 zu ermöglichen,
    - einer Anordnung zur Befestigung der beiden Platten 18,20 an einem Gurt und
    - einer ersten Bremsfläche 26, die an der ersten feststehenden Seilrolle 12 ausgebildet ist, gegen die das Seil durch einen Vorsprung 40 der zweiten Seilrolle 14 in einer ersten Blockierstellung des Betätigungshebels 34 gedrückt wird,
    dadurch gekennzeichnet, daß die schwenkbare Halterung 32 gegenüber dem Betätigungshebel 34 einen Klemmnocken 36 aufweist, der von der zweiten Seilrolle 14 durch einen Durchlaßraum 48 für das Seil 24 getrennt ist, und daß die erste Seilrolle 12 mit einer zweiten Bremsfläche 28 versehen ist, gegen die das Seil durch den Klemmnocken 36 gedrückt wird, wenn der Betätigungsgriff 34 in Richtung einer zweiten Blockierstellung verschoben wird.
  2. Selbstblockierende Abseilvorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die beiden Bremsflächen 26, 28 der ersten feststehenden Seilrolle 12 im wesentlichen geradlinig sind und zwischen sich einen stumpfen Winkel einschließen, und daß der Betätigungshebel 34 in der Zwischenstellung hervorspringt, im wesentlichen im rechten Winkel bezüglich der Grundplatte 18.
  3. Selbstblockierende Abseilvorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die Gelenkachse 30 der beweglichen Halterung 32 exzentrisch bezüglich der gedachten Mitte 44 der zweiten Seilrolle 14 ist, dergestalt, daß das Klemmmoment für das Seil erhöht wird, wenn der Betätigungshebel 34 in Richtung der ersten Blockierstellung bewegt wird.
  4. Abseilvorrichtung nach Anspruch 3, dadurch gekennzeichnet, daß die zweite Seilrolle 14 mit einer kreisförmigen Öffnung 42 versehen ist, in welche die Gelenkachse 30 während des Einsetzens der Halterung 32 eingreift, wobei die Öffnung 42 zwischen der gedachten Mitte 44 und einem Steg 46 gegenüber der Nut 38 angeordnet ist.
  5. Abseilvorrichtung nach Anspruch 4, dadurch gekennzeichnet, daß der Steg 46 der zweiten Seilrolle 14 sich im wesentlichen parallel zur ersten Bremsfläche 26 der ersten Seilrolle 12 erstreckt während des Verschwenkens des Betätigungsgriffs 34 zwischen der Zwischenstellung und der zweiten Blockierstellung.
  6. Abseilvorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die zweite Seilrolle 14 koaxial zur Achse 30 der ersten Grundplatte 18 angeordnet ist.
  7. Abseilvorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß der Durchlaßraum 48 der Halterung 32 zwischen der zweiten Seilrolle 14 und dem Klemmnocken 36 durch zwei benachbarte Schlingen einer Windung des Seils 24 durchsetzt ist, welches die erste Seilrolle 12 umschlingt.
  8. Abseilvorrichtung nach Anspruch 7, dadurch gekennzeichnet, daß die zweite Platte 20 an der Gelenkachse 30 der Abseilvorrichtung 10 derart angeordnet ist, daß sie zwischen einer offenen Stellung und einer geschlossenen Stellung hin- und herschwingt.
  9. Abseilvorrichtung nach Anspruch 8, dadurch gekennzeichnet, daß die erste Grundplatte 18 mit einer Randleiste 50 versehen ist, die sich unter einem rechten Winkel zu ihr in Richtung zur zweiten Platte 20 hin erstreckt, wenn letztere in der geschlossenen Stellung ist.
  10. Abseilvorrichtung nach Anspruch 1, mit einer Befestigungsanordnung für die Abseilvorrichtung, die eine langgestreckte Öffnung 54,52 aufweist am Ende einer jeden Platte 28 auf der Seite der zweiten Seilrolle 14 zum Einhaken eines Karabinerhakens, dadurch gekennzeichnet, daß jede Öffnung 52,54 einen abnehmenden Querschnitt aufweist zum korrekten Positionieren und Zentrieren des Karabinerhakens, unabhängig von dessen Form.
EP90904864A 1989-03-16 1990-03-13 Selbstblockierende abseilvorrichtung mit zwei blockierstellungen Expired - Lifetime EP0416079B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8903582A FR2644428B1 (fr) 1989-03-16 1989-03-16 Descendeur autobloquant pour corde a deux positions de blocage
FR8900946 1989-03-16

Publications (2)

Publication Number Publication Date
EP0416079A1 EP0416079A1 (de) 1991-03-13
EP0416079B1 true EP0416079B1 (de) 1993-05-12

Family

ID=9379844

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90904864A Expired - Lifetime EP0416079B1 (de) 1989-03-16 1990-03-13 Selbstblockierende abseilvorrichtung mit zwei blockierstellungen

Country Status (8)

Country Link
US (1) US5054577A (de)
EP (1) EP0416079B1 (de)
JP (1) JPH03505689A (de)
AU (1) AU622996B2 (de)
DE (1) DE69001596T2 (de)
ES (1) ES2042291T3 (de)
FR (1) FR2644428B1 (de)
WO (1) WO1990010476A1 (de)

Families Citing this family (48)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2647099B1 (fr) * 1989-05-19 1991-07-19 Petzl Ets Dispositif d'assurance autobloquant pour corde
AU680109B2 (en) * 1994-03-28 1997-07-17 Boris Rogelja Descender
FR2721522B1 (fr) * 1994-06-23 1996-08-14 Zedel Descendeur débrayable à autoblocage de la corde.
DE19520860B4 (de) * 1995-06-08 2005-11-03 Joze Lorbek Klemmvorrichtung für Seile o. dgl.
US5597052A (en) * 1995-08-15 1997-01-28 Rogleja; Boris Descender
FR2741539B1 (fr) * 1995-11-28 1998-01-30 Zedel Descendeur autobloquant pour corde a levier de commande
US6129033A (en) * 1998-02-23 2000-10-10 Jarrell; John L. Pulley-or roller-type block with lock arrangement
DE19815194A1 (de) * 1998-04-04 1999-10-07 Brand & Schluttig Gmbh Abseilgerät mit Paniksicherung
AUPQ467299A0 (en) * 1999-12-15 2000-01-13 Rogelja, Boris Descender with two-way locking lever
US6378650B2 (en) * 2000-02-08 2002-04-30 Basecamp Innovations, Ltd. Force limiting rope brake
DE10011753C2 (de) * 2000-03-13 2003-10-09 Hubert Kowalewski Klettergerät für Auf- und Abseilvorgänge
FR2815874B1 (fr) 2000-11-02 2002-12-27 Protecta Internat Sa Dispositif de securite des personnes pour un cable vertical
US6907960B2 (en) * 2003-09-18 2005-06-21 Gregory Lee Klingler Safe auto-locking belay override mechanism
US6899203B1 (en) * 2004-02-18 2005-05-31 Thayne J. Golden Rope management apparatus
US20070169993A1 (en) * 2004-02-23 2007-07-26 Dae-Ok Rhee Emergency release apparatus
US20080164096A1 (en) * 2004-03-22 2008-07-10 Boris Rogelja Roping Devices
AU2005223872B2 (en) * 2004-03-22 2011-08-11 3M Innovative Properties Company Improved roping device
ATE491500T1 (de) * 2004-04-28 2011-01-15 Mine Safety Appliances Co Vorrichtungen, systeme und verfahren für den notfallabstieg aus der höhe
US7669835B2 (en) * 2005-02-02 2010-03-02 Techxotic Lc Closure system, method of use, and devices including closure system
US8316989B2 (en) * 2005-05-05 2012-11-27 The University Of Utah Research Foundation Universal belay device
US7757812B2 (en) * 2005-05-05 2010-07-20 The University Of Utah Research Foundation Universal belay device
US7533871B1 (en) * 2006-11-07 2009-05-19 Everett Perry L Rope control apparatus
US7419138B1 (en) * 2007-02-23 2008-09-02 Cmc Rescue, Inc. Self-camming pulley
FR2919195B1 (fr) * 2007-07-26 2009-10-09 Zedel Soc Par Actions Simplifi Descendeur autobloquant a poignee debrayable.
FR2919196B1 (fr) * 2007-07-26 2009-10-09 Zedel Soc Par Actions Simplifi Descendeur autobloquant a poignee debrayable.
CA2721347C (en) * 2008-04-08 2017-01-17 Afl Telecommunications Llc Wedge deadend to support optical ground wire
GB2469306A (en) * 2009-04-08 2010-10-13 Andrew Liddle Braking device for use in rope climbing
SE533775C2 (sv) * 2009-05-13 2011-01-11 Initium System Ab Nedfirningsdon innefattande en hängvippa med utformat bromsorgan
US8348016B2 (en) * 2009-08-26 2013-01-08 Lewis Richard W Descender with fall arrest and controlled rate of descent
US8925680B2 (en) * 2010-07-14 2015-01-06 Brian Christopher Herrli Rappelling apparatus and method
DE102010047221A1 (de) * 2010-10-04 2012-04-05 Edelrid Gmbh & Co. Kg Falldämpfer für ein Klettersteigset
US8733739B2 (en) * 2011-03-21 2014-05-27 Kirk Martin Mauthner Device that integrates an ascender with a pulley block
ITMI20110131U1 (it) * 2011-04-18 2012-10-19 Kong Spa Discensore antipanico con possibilita' di risalita
EP2554219B1 (de) * 2011-08-03 2023-11-29 Camp S.p.A. Unterstützte Sicherheitsverriegelungsvorrichtung mit einer Antipanikvorrichtung
US8733504B2 (en) * 2012-01-17 2014-05-27 Kirk Mauthner Method and apparatus for a compact descender
FR3000898B1 (fr) * 2013-01-16 2015-06-26 Zedel Appareil de securite sur corde a voyant indicateur de l'etat indicateur de l'etat de fermeture des flasques
GB2513337A (en) * 2013-04-23 2014-10-29 Heightec Group Ltd Fall arrest device
CN104707268A (zh) * 2013-12-12 2015-06-17 熊清远 一种高层建筑安全升降逃生方法及装置
US11198026B2 (en) * 2014-10-27 2021-12-14 Black Ash Outdoor Products, LLC Fall restraint system
US10173081B2 (en) 2015-02-17 2019-01-08 Boris Rogelja Descender
DE102015207363A1 (de) 2015-04-22 2016-10-27 Oberalp SpA Sicherungsgerät
US9707420B2 (en) * 2015-10-15 2017-07-18 Andrej M. Sinkaruk Rappelling-ascending apparatus for climbing
US10327434B1 (en) 2016-05-20 2019-06-25 John L. Jarrell Remotely operable latch for a pulley-type endless halyard
CN110072595B (zh) 2016-12-16 2020-06-12 3M创新有限公司 具有制动系统的坠落保护设备
US10864387B2 (en) * 2017-04-19 2020-12-15 Auburn University Tactical rope insertion assist device
CN107295132B (zh) * 2017-08-29 2020-07-21 嘉兴市品信电器有限公司 一种新型夹持式手机支架
US11878191B2 (en) * 2020-04-24 2024-01-23 Jaenam J Coe Automatically braking belay device with releaser
DE102021108078B4 (de) 2021-03-30 2023-06-01 ART GmbH Auf- und Abseilvorrichtung mit Reibbacke

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2451752A1 (fr) * 1979-03-23 1980-10-17 Petzl Paul Dispositif descendeur autobloquant perfectionne
US4596314A (en) * 1983-07-22 1986-06-24 Boris Rogelja Descender
AU562682B2 (en) * 1983-07-22 1987-06-18 Rogelja, B. Rope descender with self acting brake
ATE62139T1 (de) * 1987-08-12 1991-04-15 Boris Rogelja Abseilgeraet.

Also Published As

Publication number Publication date
JPH03505689A (ja) 1991-12-12
WO1990010476A1 (fr) 1990-09-20
AU622996B2 (en) 1992-04-30
DE69001596T2 (de) 1994-01-13
FR2644428B1 (fr) 1992-05-29
AU5288990A (en) 1990-10-09
FR2644428A1 (fr) 1990-09-21
EP0416079A1 (de) 1991-03-13
DE69001596D1 (de) 1993-06-17
ES2042291T3 (es) 1993-12-01
US5054577A (en) 1991-10-08

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