EP1834672B1 - Mehrfunktionsgerät zur Sicherung eines Seils - Google Patents

Mehrfunktionsgerät zur Sicherung eines Seils Download PDF

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Publication number
EP1834672B1
EP1834672B1 EP07354010A EP07354010A EP1834672B1 EP 1834672 B1 EP1834672 B1 EP 1834672B1 EP 07354010 A EP07354010 A EP 07354010A EP 07354010 A EP07354010 A EP 07354010A EP 1834672 B1 EP1834672 B1 EP 1834672B1
Authority
EP
European Patent Office
Prior art keywords
cam
rope
ratchet
belaying device
belaying
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.)
Not-in-force
Application number
EP07354010A
Other languages
English (en)
French (fr)
Other versions
EP1834672A1 (de
Inventor
Paul Petzl
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 EP1834672A1 publication Critical patent/EP1834672A1/de
Application granted granted Critical
Publication of EP1834672B1 publication Critical patent/EP1834672B1/de
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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 document EP-A-398819 describes a self-locking insurance device in case of sudden tension. It comprises a cam mounted on a pivoting support plate, which is provided with a handle allowing the manual release of the rope. A return spring of the support plate urges the cam to the open position allowing the free sliding of the rope.
  • the cam is provided with two braking surfaces, and the threshold of passage from the first locking position to the second locking position depends on the hardness or calibration of the return spring.
  • the document FR-A-2721523 relates to a self-braking insurer and descender having a pivoting cam subjected to the action of a return spring which urges it towards the unlocking position.
  • the cam can be operated manually between the locking and unlocking positions according to the angular position of a control handle of the mechanism.
  • the cam is held in the open position by a telescopic ball holding device constituting a hard retention point, which disappears depending on the force exerted by the rope on the cam.
  • the document EP 117,466 relates to a cleat for a rope used by the navy.
  • the chord extends linearly with respect to the cam, and the cleat can be locked in the locked position or in the unlocked position.
  • the rope is not wrapped around a cam, and therefore can not drag it as in an insurer and descender for climbing.
  • the object of the invention is to provide a versatile belay device allowing a quick and accurate unlocking of the cam, regardless of the diameter and the degree of friction of the rope on the cam.
  • the apparatus according to the invention is characterized in that the cam is associated with a trigger pawl capable of occupying either a locking position ensuring the locking of the cam in the position of separation, or an unlocking position following a voluntary control action releasing said cam.
  • the cam remains immobilized in rotation and locked in spaced position by the pawl during the normal progression of the first rope.
  • the trigger command causes the cam to release, which is rotated to the hold position by the chord tension.
  • the order of command is given by the insurer, either through the free end of the rope that tilts the trigger pawl, or by any other means of control.
  • the pivoting trigger pawl has at one end a snap-in element for catching in a cam lock, and at the opposite end a control pallet cooperating with a spring urging said pawl towards the locking position.
  • the locking catch is located at the end or in the vicinity of an oblong opening in the cam, said circular sector-shaped opening being centered on the axis of rotation of the cam, and having a length at least equal to angular displacement of the cam between the spacing and retaining positions.
  • the trigger pawl is advantageously associated with a selector which is adjustable either in a first setting position corresponding to an insurer operation of the first rope, or in a second adjustment position corresponding to an insurer operation of the second roped .
  • the selector In the first setting position, the selector allows the trigger pawl to pivot between the lock and unlock positions.
  • the trigger pawl is immobilized in the unlocking position to release the cam.
  • the cam is coupled to an operating handle via a disengageable mechanical connection, which is either active to an intermediate position of the handle driving the cam towards the position of spread, be inactive after exceeding said intermediate position causing release of the cam and its return to the retaining position.
  • a belay device 10 for rope comprises a locking cam 11 having a peripheral sector provided with a groove 12 around which is wound the rope 13 in a half-turn.
  • the cam 11 is mounted for limited rotation around a fixed first axis 14, and is capable of moving between a holding position corresponding to a locking effect of the rope ( figure 8 ) and a spacing position corresponding to an unlocking effect of the rope ( figure 5 ).
  • the cam 11 In the retaining position following a fall of the climber, the cam 11 is provided with a boss 15 for catching the rope 13 against a fixed pad 16.
  • the stud 16 and the axis 14 are secured by fastening means to the inner wall of a support plate 17, being immobilized in rotation.
  • a retractable flange 18 is mounted to tilt on a second axis 19 of the plate 17 to occupy either an open position during the prior installation phase of the rope 13 around the cam 11, or a closed position ( figure 2 ) to trap the rope 13 in the transverse gap formed between the plate 17 and the flange 18.
  • the cam 11 further comprises an oblong opening 21 of circular shape centered on the first axis 14, and having a locking notch 22 internal to the right end near the boss 15.
  • a trigger pawl 23 is provided between the cam 11 and the plate 17 so as to control the movement of the cam 11.
  • the trigger pawl 23 is pivotally mounted about a third axis 24 to be in a position of locking, either in an unlocking position.
  • the third axis 24 is carried by the plate 17, and is located in the vicinity of the pad 16 in the passage zone of the rope.
  • One of the ends of the trigger pawl 23 is equipped with a detent element 25 that can move in the oblong aperture 21 of the cam 11, while the opposite end is provided with a cooperating control paddle 26. with a compression spring 27 housed in a blind hole of the pad 16.
  • the detent element 25 is provided with a roller 25a to facilitate the movement of movement in the opening 21 after unlocking.
  • compression spring 27 can be replaced by any other type of return spring, for example a torsion spring inserted on the third axis 24.
  • the first adjustment position 1 corresponds to an operation of insurer of the rope leader, allowing the bidirectional pivoting of the trigger pawl 23 between the locking and unlocking positions.
  • the passage of the trigger pawl 23 to the unlocking position ( figure 7 ) can intervene automatically when the first strand 13a soft rope 13 is in contact and bearing on the pallet 26 against the counterforce of the spring 27.
  • the cam 11 is then released, and can be rotated towards the retaining position by the friction of the rope 13 in the groove 12.
  • the second setting position 2 of the device corresponds to an insurer operation of the second roped, or roping.
  • the selector 28 immobilizes the trigger pawl 23 in the unlocking position.
  • the device then behaves like a blocker.
  • the belay device 10 further comprises an operating handle 29 mounted limited rotation around a fourth axis 30 carried by the outer face of the plate 17, on the same side as the selector 28.
  • a transmission rod 31 is articulated to the handle 29 to form a toggle device having a hinge pin 32 and cooperating with the cam 17 via a mechanical link 36 disengageable.
  • the end of the rod 31 opposite the hinge axis 32, is shaped hook 33 engageable with an axis 34 for driving the cam 11 when the mechanical connection 36 is active.
  • the drive shaft 34 for this purpose passes through a buttonhole 35 formed in the plate 17, and having a length corresponding to the angular displacement of the cam 11.
  • the plate 17 comprises at its base a first orifice 37 situated opposite a second orifice 38 of the flange 18 when the latter occupies the closed position ( figure 2 ).
  • a snap hook 39 can then be hooked into the two orifices 37, 38 aligned to connect the apparatus 10 to the belts of the insurer. Moving the flange 18 to the open position is then impossible.
  • the stroke of the handle 29 reaches about a 90 ° travel, corresponding to the release of the cam 11.
  • the rod 31 comes into support on the handle 29, and its trajectory is then centered on the fourth axis 30 while the mechanical connection 36 is still active.
  • the figure 13 corresponds to an anti-panic release, after a continued movement of the operating lever 29 beyond the previous position of the figure 12 , especially towards 96 °.
  • the rod 31 moves with the handle 29 so as to interrupt the mechanical connection 36 by escaping the hook 33 with the axis 34.
  • the cam 11 becomes free again, and comes to lock the rope against the stud 16.
  • the first axis 114 is hollow, being formed by a tubular sleeve extending perpendicularly to the plate 17.
  • the cam 11 is provided with an axial bore 40 of circular section and diameter slightly greater than that of the sleeve, which plays the role of a sliding bearing when mounting the rotary cam 11.
  • the orifices 137, 138 formed in the plate 17 and the flange 18 of the apparatus 100 are aligned with the socket of the hollow shaft 114 for the passage of the carabiner 39 attachment.
  • the other parts of the apparatus 100 are identical to those used in the apparatus 10 of the Figures 1 to 13 .
  • the belay device 100 has a compact footprint, following the reduction of the dimensions of the plate 17 and the flange 18 in the direction of the height.
  • the insertion of the carabiner 39 attachment in the hollow shaft 114 of the cam 11 positions the apparatus 100 very close to the user, which allows it to give slack more quickly.

Landscapes

  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Emergency Lowering Means (AREA)
  • Financial Or Insurance-Related Operations Such As Payment And Settlement (AREA)
  • Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
  • Transmission Devices (AREA)
  • Ropes Or Cables (AREA)
  • Lift-Guide Devices, And Elevator Ropes And Cables (AREA)

Claims (14)

  1. Seil-Sicherungsgerät, das umfasst:
    - eine Halteplatte (17), die mit einem festen Klötzchen (16) versehen ist,
    - einen Nocken (11), der an die Platte begrenzt drehbar um eine erste Achse (14, 114) montiert ist und einen ersten Randabschnitt umfasst, der mit einer Aussparung (12) versehen ist, um die herum das Seil (13) gemäß einer halben Umdrehung aufgerollt ist, welcher Nocken beweglich zwischen einer Rückhalteposition, die dem Festklemmen des Seils (13) durch Klemmwirkung gegen das Klötzchen (16) entspricht, und einer Abstandsposition ist, die es dem Seil (13) ermöglicht, in dem Zwischenraum zwischen dem Nocken (11) und dem Klötzchen (16) frei abgerollt zu werden,
    dadurch gekennzeichnet, dass der Nocken (11) mit einer Auslöse-Sperrraste (23) verbunden ist, die geeignet ist, entweder eine Verriegelungsposition, die die Blockierung des Nockens (11) in der Abstandsposition sicherstellt, oder in der Folge einer absichtlichen Betätigung, durch die der Nocken (11) freigegeben wird, eine Entriegelungsposition einzunehmen.
  2. Sicherungsgerät nach Anspruch 1, dadurch gekennzeichnet, dass die Freigabe des Nockens (11) dann erfolgt, wenn das erste, hintere Stück (13a) des Seils (13) an der Auslöse-Sperrraste (23) anliegt.
  3. Sicherungsgerät nach Anspruch 1, dadurch gekennzeichnet, dass die Auslöse-Sperrraste (23) begrenzt schwenkbar um eine dritte Achse (24) montiert ist und ein Eingriffselement (25) umfasst, das dazu bestimmt ist, in einen Verriegelungsausschnitt (22) des Nockens (11) einzugreifen.
  4. Sicherungsgerät nach Anspruch 3, dadurch gekennzeichnet, dass die Auslöse-Sperrraste (23) mit einer Steuerungsscheibe (26) versehen ist, die mit einer Feder (27) zusammenwirkt, die die Sperrraste in Richtung auf die Verriegelungsposition zieht, wobei der Druck des ersten Stücks (13a) des Seils auf die Scheibe (26) das Bewegen der Sperrraste in die Entriegelungsposition bewirkt.
  5. Sicherungs- und Abseilgerät nach Anspruch 3, dadurch gekennzeichnet, dass sich der Verriegelungsausschnitt (22) nahe einer in dem Nocken (11) vorgesehenen länglichen Öffnung (21) befindet, welche Öffnung mit kreisförmigem Querschnitt auf die erste Achse (14, 114) zentriert ist und eine Länge aufweist, die mindestens gleich dem winkligen Ausschlag des Nockens (11) zwischen der Abstands- und der Rückhalteposition ist.
  6. Sicherungs- und Abseilgerät nach Anspruch 4, dadurch gekennzeichnet, dass sich die Betätigungsscheibe (26) der Sperrraste nahe dem festen Klötzchen (16) befindet, wobei die Feder (27) eine Feder nach Art einer Druckfeder ist, die in einem Sackloch des festen Klötzchens (16) angeordnet ist.
  7. Sicherungs- und Abseilgerät nach Anspruch 5, dadurch gekennzeichnet, dass das Eingriffselement (25) der Auslöse-Sperrraste (23) mit einer Rolle (25a) zusammenwirkt, die entweder in der länglichen Öffnung (21) des Nockens (11) oder in dem Verriegelungsausschnitt (22) angeordnet ist.
  8. Sicherungs- und Abseilgerät nach Anspruch 1, dadurch gekennzeichnet, dass die Auslöse-Sperrraste (23) an eine Auswahlvorrichtung (28) gekoppelt ist, die entweder in einer ersten Einstellposition, die einer sichernden Funktion des Seilersten entspricht, oder einer zweiten Einstellposition einstellbar ist, die einer sichernden Funktion des Seilzweiten entspricht.
  9. Sicherungs- und Abseilgerät nach Anspruch 8, dadurch gekennzeichnet, dass die Auslöse-Sperrraste (23) zwischen dem Nocken (11) und der Innenwand der Platte (17) angeordnet ist, während die Auswahlvorrichtung (28) an die Außenseite der Platte (17) montiert ist.
  10. Sicherungs- und Abseilgerät nach Anspruch 8, dadurch gekennzeichnet, dass die Auslöse-Sperrraste (23) in der zweiten Einstellposition der Auswahlvorrichtung (28) in Entriegelungsposition blockiert ist, um den Nocken (11) freizugeben.
  11. Sicherungs- und Abseilgerät nach Anspruch 1, dadurch gekennzeichnet, dass der Nocken (11) mit einem Betätigungshebel (29) verbunden ist, und zwar mittels einer ausrückbaren mechanischen Verbindung (36), die entweder aktiv ist bis zu einer Zwischenposition des Hebels (29), die den Nocken (11) bis in die Abstandsposition mitnimmt, oder inaktiv nach dem Überschreiten der genannten Zwischenposition, die die Freigabe des Nockens (11) und dessen Rückkehr in die Rückhalteposition bewirkt.
  12. Sicherungs- und Abseilgerät nach Anspruch 11, dadurch gekennzeichnet, dass der Betätigungshebel (29) an einen Übertragungs-Schwingarm (31) angelenkt ist, um eine Kniehebelvorrichtung zu bilden, die mit einer Achse (34) zum Antrieb des Nockens (11) durch die mechanische Verbindung (36) verbunden ist.
  13. Sicherungs- und Abseilgerät nach Anspruch 1, dadurch gekennzeichnet, dass die erste Achse (114) des drehbaren Nockens (11) zur Durchführung eines Einhänge-Karabiners (39) hohl ist.
  14. Sicherungs- und Abseilgerät nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, dass ein wegklappbarer Flansch (18) schwenkbar um eine zweite Achse (19) der Platte (17) montiert ist, um entweder eine offene Position während der vorhergehenden Aufrollphase des Seils um den Nocken (11) oder eine geschlossene Position einzunehmen, um das Seil (13) in dem quergerichteten Zwischenraum zwischen der Platte (17) und dem Flansch (18) festzuhalten.
EP07354010A 2006-03-15 2007-02-27 Mehrfunktionsgerät zur Sicherung eines Seils Not-in-force EP1834672B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0602289A FR2898506B1 (fr) 2006-03-15 2006-03-15 Appareil multifonctionnel d'assurage pour corde

Publications (2)

Publication Number Publication Date
EP1834672A1 EP1834672A1 (de) 2007-09-19
EP1834672B1 true EP1834672B1 (de) 2008-10-29

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP07354010A Not-in-force EP1834672B1 (de) 2006-03-15 2007-02-27 Mehrfunktionsgerät zur Sicherung eines Seils

Country Status (8)

Country Link
US (1) US7845467B2 (de)
EP (1) EP1834672B1 (de)
JP (1) JP2007255709A (de)
CN (1) CN101126434B (de)
AT (1) ATE412452T1 (de)
DE (1) DE602007000205D1 (de)
ES (1) ES2317636T3 (de)
FR (1) FR2898506B1 (de)

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CN110975179B (zh) * 2019-12-10 2021-09-03 浙江华电器材检测研究所有限公司 一种防慌乱的速降器
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CN113384826A (zh) * 2020-07-08 2021-09-14 浙江唯海科技有限公司 单手控制自保护下降器
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DE102021002712B3 (de) * 2021-05-25 2022-06-02 Andreas Schuhmacher Seilbremse zur Befestigung in einem Sicherungspunkt
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ATE412452T1 (de) 2008-11-15
US20070215411A1 (en) 2007-09-20
ES2317636T3 (es) 2009-04-16
FR2898506A1 (fr) 2007-09-21
JP2007255709A (ja) 2007-10-04
EP1834672A1 (de) 2007-09-19
CN101126434B (zh) 2010-07-21
FR2898506B1 (fr) 2008-05-30
DE602007000205D1 (de) 2008-12-11
US7845467B2 (en) 2010-12-07
CN101126434A (zh) 2008-02-20

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