EP1380320B1 - Absturzgesichertes Führungsgerät für eine feste Leine - Google Patents

Absturzgesichertes Führungsgerät für eine feste Leine Download PDF

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Publication number
EP1380320B1
EP1380320B1 EP03354059A EP03354059A EP1380320B1 EP 1380320 B1 EP1380320 B1 EP 1380320B1 EP 03354059 A EP03354059 A EP 03354059A EP 03354059 A EP03354059 A EP 03354059A EP 1380320 B1 EP1380320 B1 EP 1380320B1
Authority
EP
European Patent Office
Prior art keywords
roller
rope
fall arrest
support arm
arrest device
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
EP03354059A
Other languages
English (en)
French (fr)
Other versions
EP1380320A1 (de
Inventor
Paul Petzl
Alain Maurice
Christian Broquerie
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.)
Zedel SAS
Original Assignee
Zedel SAS
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 Zedel SAS filed Critical Zedel SAS
Publication of EP1380320A1 publication Critical patent/EP1380320A1/de
Application granted granted Critical
Publication of EP1380320B1 publication Critical patent/EP1380320B1/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
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B35/00—Safety belts or body harnesses; Similar equipment for limiting displacement of the human body, especially in case of sudden changes of motion
    • A62B35/04—Safety belts or body harnesses; Similar equipment for limiting displacement of the human body, especially in case of sudden changes of motion incorporating energy absorbing means

Definitions

  • fall arrest devices follow the progression of the person along the rope without generating blocking.
  • the person is free to move without any intervention manual release of the fall arrest device.
  • the blocking occurs only in case of fall.
  • the restraint system of known fall arrest devices generally includes a pivoting lever having at one end an attachment ring for the connection to a shoulder belt, and at the opposite end a locking cam of the rope.
  • a pivoting lever having at one end an attachment ring for the connection to a shoulder belt, and at the opposite end a locking cam of the rope.
  • Such The arrangement behaves like a cleat which may prevent blocking if the user were to grip the lever in the event of a fall.
  • WO 00/24471 relates to a locking device bidirectional for a fall arrest apparatus, comprising a locking member equipped with two cams actuated independently by an organ of common blockage in response to a sudden change in weight.
  • the blocking of each of the cams depends on the inclination of the rope relative to the chassis of the device.
  • US 4923037 discloses a fall arrest device having a system of restraint consisting of an articulated support arm, which is equipped with a wheel cylindrical mounted free rotation, and a centrifugal mechanical coupling arranged in a ratchet.
  • the periphery of the wheel has a series of teeth constituting a pinion causing rotation of the wheel by friction with the cable.
  • the radial direction of the teeth does not allow to obtain a functioning optimum fall arrest system.
  • to insert the vertical lifeline in the fall arrest device it is necessary to make use of a U-shaped articulated, and to rotate outward, which complicates maneuvers.
  • the object of the invention is to provide a fall arrest apparatus for a fixed rope, to obtain maximum safety for the user in the event of a fall, regardless of the inclination of the rope or a handling error of the device.
  • the fall arrest device is characterized in that the surface roller device is provided with a plurality of pins arranged for generate a rotation of the roller in the direction of the descent, and a slip on the rope in the direction of the climb, and that the body has a chute rectilinear U-shaped for the passage of the rope, said chute having holes for the passage of fastening means.
  • the mechanical coupling is disposed inside the roller, and comprises at least one movable weight by centrifugal effect along a ramp as a function of speed or acceleration of the drive member of the roller.
  • the weight is associated with a spring of return biasing the mechanical coupling in the disengaged position, the threshold when the centrifugal force is greater than the force return spring.
  • a fall arrest device 10 is used for the safety of a person moving along a fixed 12 insurance rope.
  • a carabiner 14 is hooked to the fall arrest device 10 so as to be connected to the harness, either live, either through an absorption lanyard.
  • the fall arrest device 10 follows the progression of the person along the rope 12 without generating blocking. The person is free to move without any intervention Manual release of the fall arrest device 10.
  • the fall arrest device 10 is composed of a rigid body 16 and a control system.
  • mobile retainer 18 cooperating with the rope 12 to occupy either a position blocking function in the event of a fall, ie an inactive unlocking position in the direction of the climb, or in the opposite direction during a controlled descent.
  • the body 16 which is preferably metallic, comprises a straight trough 20 made of U shape for the passage of the rope 12, and a stirrup 22 for mounting a first axis 24 extending transversely to the direction of the chute 20.
  • the upper part of the chute 20 is pierced by two holes 23 to allow the passage of the carabiner 14 attachment to the harness.
  • the retaining member 18 comprises a support arm 26 articulated on the first axis 24, and a wheel-shaped roller 28 mounted for free rotation on a second axis 30 integral with the support arm 26.
  • the peripheral surface of the roller 28 is cylindrical, and is provided with a plurality of pins 32 each having an inclination predetermined with respect to the radial direction passing through the axis 30.
  • a spring torsion (not shown) is threaded on the first axis 24 and urges the arm support 26 in the direction of the chute 20.
  • the roller 28 is provided with an internal drive member 33, pierced by an orifice 34 central cylindrical, which is traversed by a tubular bearing 36 introduced on the second fixed axis 30. Inside the roller 28 is in addition a mechanical coupling 38 formed by a pair of weights 40 cylindrical arranged between opposite ramps 42 of the organ 33 and a circular flange 44 of the support arm 26.
  • Each weight 40 is associated with a spring 46 in the shape of a pin intended for urging the mechanical coupling 38 to the disengaged position when the normal use of the fall arrest device 10.
  • the 40 flyweights are in a hollow of the drive member 33, in order to interrupt the mechanical coupling 38 between the roller 28 and the arm 26.
  • the roller 28 is then rotated by the friction of the rope 12, while the support arm 26 is in the inactive position allowing the device fall arrest 10 to follow the progress of the user on the ascent or descent.
  • the restoring force of the springs 46 defines the coupling threshold as a function of the speed or acceleration of the drive member 33 of the rotary roller 28.
  • the abrupt rotation of the roller 28 on the axis 30 causes the displacement of the weights 40 by centrifugal effect to the engaged position. This movement is effected against the restoring force of the springs 46, and causes jamming of the weights 40 between the flange 44 and the body 33.
  • the mechanical coupling in the engaged position thus makes the roller 28 secured to the support arm 26, so as to form a cleat wedge capable of pivoting about the first axis 24, and blocking the fall by blocking the rope 12.
  • the pivoting support arm 26 is equipped with a stop 48 intended to cooperate with the carabiner 14 to limit the pivoting stroke of the arm 26 in the inactive unlock position. The response time of the support arm 26 pivoting is thus reduced to the minimum to obtain the blocking in case of fall.
  • the end of the stop 48 is provided with a protuberance 49 intended for intercalate between the two holes 23 of the body 16 to prevent the establishment carabiner 14 before the introduction of the rope 12.
  • the fall arrest device 10 is shown in the position opening for the installation of the rope 12 in the trough 20.
  • the system of retainer 18 is spaced at the maximum of the chute against the force of return of the torsion spring.
  • Rope 12 is hooked to an anchor fixed upper, for example a plate or a stud.
  • the protuberance 49 of the stop 48 closes the two holes 23, which prevents the introduction of the carabiner 14 before the introduction of the rope 12 into the chute 20.
  • roller 28 rotates clockwise under the effect of the friction of the rope 12 on the pins 32, and the weights 40 remain immobilized in the disengaged position under the action of the springs 46.
  • the controlled braking of the roller 28 allows the device fall arrest 10 to be positioned above the user.
  • the roller 28 slides on the rope 12 by pivoting the arm assembly 26 and roller 28 about the first axis 24.
  • the abrupt rotation of the roller and the drive member 33 in the clockwise subjects the weights 40 to a centrifugal force, which is higher and opposite to the restoring force of the springs 46.
  • the weights 40 move on the ramps 42, which causes jamming weights 40 between the flange 44 and the drive member 33.
  • the mechanical coupling is then in the engaged position, making the roller 28 secured to the support arm 26.
  • the assembly constitutes a jamming cleat rotatable clockwise about the first axis 24, and blocking the fall by blocking the rope 12. Unblocking the weights 40 intervenes by a manual action of the operator to maintain the roller 28 against the rope 12, and by raising the body 16 by a few centimeters.
  • the stop 48 is replaced by a security flap 50, which is arranged to fill the same functions of the abutment 48 of the preceding Figures 1-12, in addition to a positioning function of the rope 12 at the bottom of the chute 20 before the introduction of the carabiner 14 in the holes 23.
  • the safety flap 50 is pivotally mounted on an axis 52, and comprises a oblong aperture 54 inside which moves a lever of control 56 secured to the support arm 26.
  • the opening 54 has a double angled ramp for moving the flap 50 according to the pivoting movement of the arm 26.
  • the flap 50 further comprises a wing 58 intended to press the rope 12 at the bottom of the chute 20.
  • FIG. 17 corresponding to the blocking position of the arm 26 following a drop, the movement of the lever 56 in the opening 54 allows the flap 50 to keep the same position in Figure 16, so as not to interfere with the kinematic blocking.

Landscapes

  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Emergency Lowering Means (AREA)
  • Braking Arrangements (AREA)
  • One-Way And Automatic Clutches, And Combinations Of Different Clutches (AREA)
  • Guides For Winding Or Rewinding, Or Guides For Filamentary Materials (AREA)
  • Knitting Machines (AREA)
  • Framework For Endless Conveyors (AREA)
  • Load-Engaging Elements For Cranes (AREA)

Claims (8)

  1. Folge-Sturzsicherungsvorrichtung, die mit einem fest installierten Sicherheitsseil (12) verwendet wird und umfasst:
    einen Körper (16), der mit einem Rückhaltesystem (18) versehen ist, das so vorgesehen ist, dass es entweder eine aktive Blockierungsposition im Falle eines Sturzes oder eine inaktive Entriegelungsstellung einnimmt, die eine Fortbewegung des Benutzers an dem Seil (12) in Richtung des Aufstiegs oder in entgegengesetzter Richtung bei einem kontrollierten Abstieg ermöglicht, welches Rückhaltesystem (18) einen Stützarm (26), der um eine erste Achse (24) des Körpers schwenkbar ist, eine Rolle (28) in Form eines zylindrischen Rädchens, das frei drehend um eine zweite Achse (30) montiert ist, die fest mit dem Stützarm (26) verbunden ist, sowie eine mechanische Zentrifugal-Kupplung (38) umfasst, die zwischen einem Antriebselement (33) der Rolle (28) und dem Stützarm (26) so angeordnet ist, dass sie eine ein- oder ausgerückte Stellung aufweist,
    sowie Befestigungsmittel für die Verbindung des Körpers (16) mit einem Klettergürtel des Benutzers,
    dadurch gekennzeichnet, dass
    die Umfangsfläche der Rolle (28) mit einer Vielzahl von Widerhaken (32) versehen ist, die so angeordnet sind, dass sie eine Drehung der Rolle (28) in Abstiegsrichtung und ein Gleiten am Seil (12) in Aufstiegsrichtung bewirken,
    der Körper (16) eine gerade, U-förmige Rinne (20) zur Durchführung des Seils (12) umfasst, welche Rinne mit Öffnungen (23) zum Anbringen von Befestigungsmitteln versehen ist.
  2. Sturzsicherungsvorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass die mechanische Kupplung (38) innerhalb der Rolle (28) angeordnet ist und mindestens ein durch Zentrifugalwirkung je nach Geschwindigkeit oder Beschleunigung des Antriebselements der (33) Rolle (28) entlang einer Schräge (42) bewegliches Gewicht (40) umfasst.
  3. Sturzsicherungsvorrichtung nach Anspruch 2, dadurch gekennzeichnet, dass das Gewicht (40) mit einer Rückholfeder (46) verbunden ist, welche die mechanische Kupplung (38) in die ausgerückte Stellung zieht, wobei die Kupplungsschwelle dann erreicht ist, wenn die Zentrifugalkraft die Rückholkraft der Feder (46) übersteigt.
  4. Sturzsicherungsvorrichtung nach Anspruch 3, dadurch gekennzeichnet, dass das Gewicht (40) zylindrisch ist und in Eingriffsstellung mit einer zylindrischen Leiste (44) des Stützarms (26) zusammenwirkt.
  5. Sturzsicherungsvorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass die Befestigungsmittel aus einem Karabiner (14) bestehen, der durch die Öffnungen (23) des Körpers (16) geführt wird.
  6. Sturzsicherungsvorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass der Stützarm (26) mit Sicherheitsmitteln (48, 50) versehen ist, die dazu bestimmt sind, den Schwenkweg dieses Arms in der inaktiven Freigabestellung zu begrenzen und das Einsetzen des Karabiners (14) vor dem Einführen des Seils (12) in die Rinne (20) zu verhindern.
  7. Sturzsicherungsvorrichtung nach Anspruch 6, dadurch gekennzeichnet, dass die Sicherheitsmittel einen Anschlag (48) umfassen, der fest mit dem Stützarm (26) verbunden und von dem ein Ende mit einer Auskragung (49) versehen ist.
  8. Sturzsicherungsvorrichtung nach Anspruch 6, dadurch gekennzeichnet, dass die Sicherheitsmittel eine Klappe (50) umfassen, die um eine Achse (52) schwenkbar ist und umfasst:
    eine längliche Öffnung (54), in der sich ein Bedienungshebel (56) hin- und herbewegt, der fest mit dem Stützarm (26) verbunden ist,
    sowie einen Flügel (58), der dazu bestimmt ist, das Seil (12) fest an den Boden der Rinne (20) zu drücken.
EP03354059A 2002-07-12 2003-06-19 Absturzgesichertes Führungsgerät für eine feste Leine Expired - Lifetime EP1380320B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0208865 2002-07-12
FR0208865A FR2842113B1 (fr) 2002-07-12 2002-07-12 Dispositif antichute suiveur pour corde fixe

Publications (2)

Publication Number Publication Date
EP1380320A1 EP1380320A1 (de) 2004-01-14
EP1380320B1 true EP1380320B1 (de) 2005-05-18

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ID=29725322

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03354059A Expired - Lifetime EP1380320B1 (de) 2002-07-12 2003-06-19 Absturzgesichertes Führungsgerät für eine feste Leine

Country Status (7)

Country Link
US (1) US6793046B2 (de)
EP (1) EP1380320B1 (de)
JP (1) JP4242222B2 (de)
AT (1) ATE295753T1 (de)
DE (1) DE60300667T2 (de)
ES (1) ES2242934T3 (de)
FR (1) FR2842113B1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9192792B2 (en) 2013-01-15 2015-11-24 Zedel Fall arrest safety apparatus with blocking on a rope
US9498660B2 (en) 2013-01-15 2016-11-22 Zedel Fall arrest safety apparatus on a rope with clamping function

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FR2860982B1 (fr) * 2003-10-20 2006-01-20 Zedel Dispositif antichute a galet bloqueur
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US8348016B2 (en) * 2009-08-26 2013-01-08 Lewis Richard W Descender with fall arrest and controlled rate of descent
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IT1403628B1 (it) * 2011-01-13 2013-10-31 Aludesign Spa Dispositivo assicuratore e discensore
CA2824999C (en) * 2011-01-19 2016-10-25 Nite Ize, Inc. Self-locking clip systems and methods
WO2013104139A1 (zh) * 2012-01-13 2013-07-18 He Shaodun 一种悬吊下降***的绳索防倒装置
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
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US9623269B2 (en) * 2013-03-14 2017-04-18 Black Diamond Equipment, Ltd. Systems for assisted braking belay with a cam-clutch mechanism
US9320924B2 (en) 2013-03-15 2016-04-26 Honeywell International Inc. Self-locking webbing connectable device attachment plate
WO2015155082A1 (en) * 2014-04-07 2015-10-15 Actsafe Systems AB Portable power driven system comprising a rope grab arrangement
FR3023726B1 (fr) * 2014-07-18 2016-07-29 Zedel Bloqueur pour la remontee sur corde
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CN107191515B (zh) * 2017-05-19 2023-03-21 中建八局第二建设有限公司 一种离心式悬吊钩超速控制装置
JP2020527976A (ja) * 2017-07-17 2020-09-17 セーフワークス エルエルシーＳａｆｅＷｏｒｋｓ， ＬＬＣ 登高補助および墜落制止システム
US20190338593A1 (en) * 2017-07-17 2019-11-07 Safeworks, Llc Integrated climb assist and fall arrest systems and methods
USD869939S1 (en) * 2018-07-17 2019-12-17 Zedel Rope climbing apparatus
USD878185S1 (en) * 2018-07-17 2020-03-17 Zedel Mechanical prusik
CN109939376B (zh) * 2019-03-12 2020-10-16 无锡市钱桥建筑安装工程有限公司 一种高层建筑索道逃生装置
FR3095952B1 (fr) 2019-05-14 2022-07-22 Zedel Dispositif absorbeur d’énergie à brin d’élément filaire
CN114729676A (zh) * 2019-07-16 2022-07-08 安全工业责任有限公司 绳索连结
DE102020107829A1 (de) 2020-03-21 2021-09-23 Edelrid Gmbh & Co. Kg Mitlaufendes Seilsicherungsgerät
CN111706061A (zh) * 2020-05-26 2020-09-25 深圳市特辰科技股份有限公司 一种离心转轮防坠爬架
EP3939670A1 (de) 2020-07-13 2022-01-19 Tractel Greifzug GmbH Sturzsicherungsvorrichtung
CN111840851A (zh) * 2020-08-18 2020-10-30 中际联合（北京）科技股份有限公司 绳索锁止装置
US20220176173A1 (en) * 2020-12-07 2022-06-09 Werner Co. Self-retracting lifeline housing
CN112827088A (zh) * 2020-12-31 2021-05-25 贵州电网有限责任公司 一种侧面卡接式攀爬装置
US20220403916A1 (en) * 2021-06-17 2022-12-22 Daniel Scott Universal tie-down apparatus and method of use
US11779780B1 (en) * 2022-11-30 2023-10-10 William Burke Controlled ascender/descender device
CN113847389B (zh) * 2021-09-29 2023-04-18 广东电网有限责任公司 一种用于杆塔作业的重物防坠挂钩
WO2023152462A1 (en) * 2022-02-09 2023-08-17 International Safety Components Ltd Fall- arrest devices
FR3139725A1 (fr) * 2022-09-19 2024-03-22 Zedel Dispositif de détection d’une vitesse seuil d’un dispositif de blocage, dispositif de blocage et procédé de blocage d’un élément filaire
CN115738111A (zh) * 2022-12-09 2023-03-07 李国栋 一种攀岩自动缓降保护装置

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9192792B2 (en) 2013-01-15 2015-11-24 Zedel Fall arrest safety apparatus with blocking on a rope
US9498660B2 (en) 2013-01-15 2016-11-22 Zedel Fall arrest safety apparatus on a rope with clamping function

Also Published As

Publication number Publication date
EP1380320A1 (de) 2004-01-14
JP4242222B2 (ja) 2009-03-25
ES2242934T3 (es) 2005-11-16
FR2842113B1 (fr) 2004-09-24
US6793046B2 (en) 2004-09-21
DE60300667T2 (de) 2006-04-27
JP2004144292A (ja) 2004-05-20
ATE295753T1 (de) 2005-06-15
US20040020727A1 (en) 2004-02-05
DE60300667D1 (de) 2005-06-23
FR2842113A1 (fr) 2004-01-16

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