EP0803268B1 - Scheibe mit Drehflansch und integrierter Klemme - Google Patents

Scheibe mit Drehflansch und integrierter Klemme Download PDF

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Publication number
EP0803268B1
EP0803268B1 EP97410043A EP97410043A EP0803268B1 EP 0803268 B1 EP0803268 B1 EP 0803268B1 EP 97410043 A EP97410043 A EP 97410043A EP 97410043 A EP97410043 A EP 97410043A EP 0803268 B1 EP0803268 B1 EP 0803268B1
Authority
EP
European Patent Office
Prior art keywords
flange
spindle
rope
tumbler
pulley
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
EP97410043A
Other languages
English (en)
French (fr)
Other versions
EP0803268A1 (de
Inventor
Jean Marc Hede
Paul 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.)
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 EP0803268A1 publication Critical patent/EP0803268A1/de
Application granted granted Critical
Publication of EP0803268B1 publication Critical patent/EP0803268B1/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

Definitions

  • Single oscillating flange pulleys are used with classic way to make lifting devices, including hoists, hauling, diverts, as well as horizontal progression devices like the zip line.
  • the rotary roller is mounted idly on the axis of the pulley. If the devices must respond for security measures to functions non-return, it is essential to associate a blocker with the pulley intended to block the rope when the force of handling.
  • the blocker is formed by a separate device connected to the pulley by a connecting carabiner. The whole then presents a significant bulk, and requires the obligatory passage of the rope in the two devices in series.
  • the object of the invention is to produce a flange pulley reliable swivel and non-return device with a small footprint.
  • the pulley according to the invention is characterized in that said second axis is tubular, extending parallel to the first axis, and having an internal orifice intended to come into alignment with a hole conjugate of the second flange when the latter reaches the close to the closed position, so as to allow hooking a carabiner through the articulation of the trigger, simultaneously causing the locking of the second flange in closed position.
  • Attaching the carabiner to the hinge pin of the blocker reduces the size of the pulley while guaranteeing safety, because the retractable flange remains locked positively in the closed position preventing all rope escape.
  • the second axis of the blocker is mounted in cantilever on the first flange, and comprises first means for axial positioning of the trigger, and second means for nesting the second flange in closed position.
  • the first means of positioning of the trigger in space are formed by a stop arranged at near the end of the second axis opposite the second flange.
  • the second means of fitting the second flange consist of an annular rim projecting from the stop and arranged coaxially with the orifice of the second axis.
  • the means of articulation of the second flange on the first axis are arranged to authorize when closing the second flange, opposite movements of spacing and approximation with respect to the second axis.
  • the movable trigger advantageously includes means for control to secure the trigger lock in the inactive unlocking position inhibiting the action of the blocker. The use of the device is then reduced to a single pulley without blocker.
  • a pulley designated by the reference general 10 has a first fixed flange 12 serving as a support to a first axis 14 of a rotary roller 16 and to a second axis 18 a locking trigger 20 constituting an integrated blocker 21.
  • the two axes 14, 18 are fixed and extend parallel to one another. the other in a direction perpendicular to the fixed flange 12.
  • the roller 16 is mounted to rotate freely on the first axis 14 with interposition of a self-lubricating bearing 22, which could well heard to be replaced by other running gear.
  • the rotary roller 16 is provided with an annular groove 24 for the rope guide, which can be blocked by a surface of jamming of trigger 20 when it is located in active position.
  • a second mobile flange 28 is mounted at rotation on the end of the first axis 14 between a position closed ( Figure 1), and an open position ( Figure 9).
  • the second flange 28 is urged to bear against a shoulder 30 of the first axis 14 by the action of an elastic joint 32 of shape toric, which is arranged in an annular groove 34 of the flange 28, and closed by an external washer 36 secured to the first axis 14.
  • the seal 32 can of course be replaced by a simple wavy elastic washer.
  • the shoulder 30 protrudes slightly from the front face of the bearing 22 so as to generate an axial clearance between the flange 28 and the bearing 22 so as not to hinder the rotational movement of the movable flange 28 relative to the roller 16.
  • the flanges 12,28 and the roller 16 are made of aluminum, while trigger 20 is in steel.
  • the wedging surface 26 has a plurality of retaining pins 38 intended to wedge the rope in the active position, and a central slot 40 to facilitate the evacuation of mud or ice from the rope.
  • the roller 16 and the blocker 21 are both arranged in a transverse space 41 formed between the two flanges 12,28.
  • the second axis 18 of the trigger 20 is tubular and is mounted in overhang on the first flange 12.
  • One of the ends 42 is crimped on the first flange 12, while the end opposite 44 has a stop 46 for axial positioning of the body trigger 20, and a flange 48 of nesting of the second flange 28 when the latter is moved to the closed position.
  • the internal orifice 50 of the second axis 18 has a circular section and allows the passage of a carabiner.
  • the establishment of the second flange 28 on the annular flange 48 fitting is possible thanks to a circular hole 52 provided for the free end of the second movable flange 28.
  • the diameter internal hole is slightly larger than the outside diameter of the rim 48 of nesting.
  • the presence of the seal 32 in the groove 34 allows a certain friction braking of the rotational movement of the second flange 28 around the first axis 14, and in addition allows a slight alternating tilting movement of the second flange 28 at close to the closed position.
  • the tilting movement is centered on the first axis 14, and is made possible thanks to the deformation of the seal 32 (FIG. 3), alternately allowing a spacing in the direction of arrow F1 for aligning the hole 52 with orifice 50, and an approximation in the opposite direction indicated by arrow F2 for the insertion of the hole 52 on the flange 48 fitting the second axis 18.
  • the body of the trigger trigger 20 is provided with a light 54 of lockout allowing the passage of a carabiner for the trigger 20 locked in the inactive position.
  • a return spring 55 urges trigger 20 towards the active blocking position, the spring being formed by a torsion spring inserted in a notch in the body of trigger 20.
  • the trigger 20 In the absence of a rope inside the space 41, the trigger 20 abuts on the roller 16. In the separated position, a rib of the trigger 20 comes into abutment against a stopper of the flange 28.
  • FIG. 6 shows a first application of a deflection pulley non-return, the movable flange 28 not being shown for reasons of clarity of the drawing.
  • Rope 56 is in place on the roller 16, and the wedging surface 26 is in contact with the rope 56 following the spring return action 55.
  • the hoisting of a mass M by the left strand is made possible thanks to the trigger drive in the unlocking direction indicated by arrow D.
  • Unlocking by pivoting in the direction reverse of trigger 20 is operated by the friction exerted by the rope 56 on the pins of the surface 26 when the roller 16 rotates clockwise. If the force F is released, the mass M does not descend, thanks to the antagonistic action of the non-return blocker 21, the trigger 20 automatically returns in the opposite direction to the active position, in which the wedging surface 26 exerts significant pressure on the rope 56.
  • the closure of the second movable flange 28 is illustrated on the Figures 7 to 9, the rope 56 not being shown.
  • the movable flange 28 is first turned in the direction F3 around the first axis 14, followed at the end of the closing stroke by a slight spreading movement in direction F1 to allow passage over the flange 48 for nesting the second hollow axis 18.
  • Figure 8 corresponds to Figure 3 illustrating the next step of reclosure of the movable flange 28, in which the hole 52 is in alignment with the orifice 50, and ready to be fitted on the flange 48 of the second axis 18.
  • Figure 9 shows the final closing phase of the second flange 28, which is fitted on the articulation of the trigger 20 of the blocker 21.
  • the hole 52 of the second flange 28 serves bearing at the edge 48 of the second axis 18, which avoids a trigger overhang 20.
  • FIG. 10 represents two modes of use of the pulley 10 depending on whether the trigger 20 is free or locked.
  • the passage of carabiner 58 through the second hollow axis 18 and the hole 52 of the second flange 28 allows use in pulley of non return return. In this case, the trigger 20 is free, and is likely to block the rope.
  • the hooking of the carabiner 58 to through the articulation of the trigger 20 of the blocker 21 allows a reduction of the size of the pulley body 10.
  • the second flange 28 remains locked in the closed position after the passage of the carabiner 58 in the hollow axis 18 of trigger articulation 20.
  • Trigger 20 remains locked in the open position, which permanently spreads the surface of jamming 28 of rope 56.
  • Figure 11 shows another application of pulley 10 as booster for climbing up the rope 56.
  • the weight P is applied to the axis 18 of the trigger 20, and the rope 56 passes between the roller 16 and the wedging surface 26.
  • Figure 12 shows a zip line application unidirectional, in which the pulley 10 moves along of a rope 56 between a starting point A and a finishing point B located on a lower level.
  • the rope 56 passes under the roller 16, and the mass M is attached to the second axis 18 of the trigger 20.
  • the blocking trigger 20 is provided with a control lever 60 articulated on an axis 62 of the trigger 20, and having an angled shape.
  • the lever 60 has a first arm 60a located between the axis 62 and the intermediate zone 60b bent at right angle, and a second arm 60c serving as a gripping.
  • the first arm 60a is intended to cooperate with a bearing surface 64 provided at the upper part of the flanges 12, 28 to position the trigger 20 in an open position ( Figure 13), in which the wedging surface 28 does not enter in contact with the rope 56.

Landscapes

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

Claims (10)

  1. Umlenkrolle mit:
    einem Paar Flanschen, und zwar einem ersten und einem zweiten (12, 28), die zwischen sich quer verlaufend einen Zwischenraum (41) begrenzen, in dem eine Rolle (16) angeordnet ist, die drehbar um einen ersten Bolzen (14) montiert ist,
    einer Rille (24), die zur Führung des Seils (56) in der Rolle (16) vorgesehen ist,
    Vorrichtungen zum Schwenken des zweiten Flansches (28) um den ersten Bolzen (14), wodurch der Flansch zwischen einer ersten, geschlossenen Position, bei der das Seil (56) in dem Zwischenraum (41) eingeschlossen ist, und einer offenen Position zum Einlegen des Seils in die Rolle (16) hin- und herbewegt werden kann,
    und einer in den Zwischenraum (41) integrierten Seilklemme (21), die einen beweglichen Schnapper (20) umfasst, der um einen zweiten Bolzen (18) zwischen einer aktiven Verriegelungsposition und einer inaktiven Freigabeposition des Seils (56) hin- und hergeschwenkt werden kann,
    dadurch gekennzeichnet, dass der zweite Bolzen (18) röhrenförmig ist, sich parallel zum ersten Bolzen (14) erstreckt und eine innere Öffnung (50) aufweist, die vorgesehen ist, auf eine passende Öffnung (52) des zweiten Flansches (28) gefluchtet zu werden, wenn dieser sich der geschlossenen Position annähert, sodass er das Einhängen eines Karabiners (58) durch das Gelenk des Schnappers (20) ermöglicht und gleichzeitig die Verriegelung des zweiten Flansches (28) in geschlossener Position bewirkt.
  2. Umlenkrolle nach Anspruch 1, dadurch gekennzeichnet, dass der zweite Bolzen (18) der Seilklemme (21) überstehend an den ersten Flansch (12) montiert ist und erste Mittel zur axialen Positionierung des Schnappers (20) und zweite Mittel zum Aufstecken des zweiten Flansches (28) in geschlossener Position umfasst.
  3. Umlenkrolle nach Anspruch 2, dadurch gekennzeichnet, dass die ersten Mittel zur Positionierung des Schnappers (20) in dem Zwischenraum (41) von einem Anschlag (46) gebildet werden, der nahe dem Ende (44) des zweiten Bolzens (18) gegenüber dem zweiten Flansch (28) angeordnet ist.
  4. Umlenkrolle nach Anspruch 3, dadurch gekennzeichnet, dass die zweiten Mittel zum Aufstecken des zweiten Flansches (28) von einer ringförmigen Leiste (48) gebildet werden, die über den Anschlag (46) übersteht und koaxial zur Öffnung (50) des zweiten Bolzens (18) angeordnet ist.
  5. Umlenkrolle nach Anspruch 2 oder 4, dadurch gekennzeichnet, dass die Vorrichtungen zum Schwenken des zweiten Flansches (28) um den ersten Bolzen (14) so vorgesehen sind, dass sie beim Schließen des zweiten Flansches (28) entgegengesetzte Bewegungen des Abspreizens und Annäherns bezogen auf den zweiten Bolzen (18) zulassen.
  6. Umlenkrolle nach Anspruch 5, dadurch gekennzeichnet, dass auf den ersten Bolzen (14) eine Dichtung (32) in einer ringförmigen Rille (34) des zweiten Flansches (28) außerhalb des Zwischenraums (41) angeordnet ist, welche Dichtung (32) mit einer Scheibe (36) zusammenwirkt, um den zweiten Flansch (28) gegen einen Innenabsatz (30) des zweiten Bolzens (14) zu drücken und dabei dennoch dessen Schwenken in die Nähe der geschlossenen Position nach der Verformung der Dichtung (32) erlaubt.
  7. Umlenkrolle nach Anspruch 6, dadurch gekennzeichnet, dass die drehbare Rolle (16) an den ersten, festen Bolzen (14) unter Dazwischensetzung von Lagermitteln, insbesondere einer selbstschmierenden Hülse (22), oder Kugellagern montiert ist.
  8. Umlenkrolle nach Anspruch 1, dadurch gekennzeichnet, dass der bewegliche Schnapper (20) Steuerungsmittel für die Verriegelung des Schnappers (20) in der inaktiven, entriegelten Position umfasst, um ein Eingreifen der Seilklemme (21) zu verhindern.
  9. Umlenkrolle nach Anspruch 8, dadurch gekennzeichnet, dass der schwenkbare Schnapper (20) mit einer Rückholfeder (55) zusammenwirkt, die die Seilklemme (21) nach Betätigung der Steuerungsmittel in Richtung auf die aktive Verriegelungsposition zieht.
  10. Umlenkrolle nach Anspruch 8, dadurch gekennzeichnet, dass die Steuerungsmittel einen Betätigungshebel (60) umfassen, der um einen Bolzen (62) des Schnappers (20) geschwenkt wird und eine geknickte Form hat, um mit einer Auflagefläche (64) der Flansche (12, 28) zusammenzuwirken, wenn sich der Schnapper (20) in einer offenen Position befindet, in der die Klemmfläche (26) nicht mit dem Seil (56) in Berührung kommt.
EP97410043A 1996-04-25 1997-04-11 Scheibe mit Drehflansch und integrierter Klemme Expired - Lifetime EP0803268B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9605463A FR2748078B1 (fr) 1996-04-25 1996-04-25 Poulie a flasque pivotant et a bloqueur integre
FR9605463 1996-04-25

Publications (2)

Publication Number Publication Date
EP0803268A1 EP0803268A1 (de) 1997-10-29
EP0803268B1 true EP0803268B1 (de) 2003-01-22

Family

ID=9491743

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97410043A Expired - Lifetime EP0803268B1 (de) 1996-04-25 1997-04-11 Scheibe mit Drehflansch und integrierter Klemme

Country Status (9)

Country Link
US (1) US5845894A (de)
EP (1) EP0803268B1 (de)
JP (1) JP3961067B2 (de)
AU (1) AU713327B2 (de)
CZ (1) CZ289602B6 (de)
DE (1) DE69718547T2 (de)
ES (1) ES2191160T3 (de)
FR (1) FR2748078B1 (de)
RU (1) RU2174941C2 (de)

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US9126062B2 (en) 2012-11-16 2015-09-08 Zedel Safety device on a rope with blocking under load

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CN102635679A (zh) * 2011-02-15 2012-08-15 刘文辉 固定侧板单滑轮装置及其制作方法
US8733739B2 (en) * 2011-03-21 2014-05-27 Kirk Martin Mauthner Device that integrates an ascender with a pulley block
FR2990873B1 (fr) * 2012-05-22 2016-12-09 Zedel Bloqueur de longe a corps mobile en rotation
US9770071B2 (en) * 2012-08-06 2017-09-26 Kenneth G. Kingery Parachute cord tie down
FR3000899B1 (fr) * 2013-01-15 2015-06-26 Zedel Appareil de securite antichute et blocage sur corde
FR3000900B1 (fr) 2013-01-15 2015-02-27 Zedel Appareil de securite antichute sur corde avec fonction bloqueur
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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CN104876147B (zh) * 2015-05-12 2017-09-08 上海交通大学 机械式垂面位置调节装置
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CN111549502A (zh) * 2019-09-25 2020-08-18 吴文芳 一种滑移式竞时晾衣架升降装置
GB2604177B (en) * 2021-02-26 2023-08-30 Treemagineers Ltd Pulley
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IT202100025394A1 (it) * 2021-10-04 2023-04-04 Aludesign Spa Dispositivo multifunzione dotato di una camma di bloccaggio e di una puleggia per una fune di sicurezza
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9126062B2 (en) 2012-11-16 2015-09-08 Zedel Safety device on a rope with blocking under load

Also Published As

Publication number Publication date
EP0803268A1 (de) 1997-10-29
FR2748078A1 (fr) 1997-10-31
RU2174941C2 (ru) 2001-10-20
AU713327B2 (en) 1999-12-02
CZ289602B6 (cs) 2002-03-13
ES2191160T3 (es) 2003-09-01
US5845894A (en) 1998-12-08
JP3961067B2 (ja) 2007-08-15
DE69718547D1 (de) 2003-02-27
DE69718547T2 (de) 2003-11-20
FR2748078B1 (fr) 1998-06-12
AU1903097A (en) 1997-10-30
JPH1036086A (ja) 1998-02-10
CZ115897A3 (en) 1997-11-12

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