EP3599000B1 - Descendeur a poulie - Google Patents

Descendeur a poulie Download PDF

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Publication number
EP3599000B1
EP3599000B1 EP19187414.8A EP19187414A EP3599000B1 EP 3599000 B1 EP3599000 B1 EP 3599000B1 EP 19187414 A EP19187414 A EP 19187414A EP 3599000 B1 EP3599000 B1 EP 3599000B1
Authority
EP
European Patent Office
Prior art keywords
rotation
pulley
rope
clamping
cam
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
EP19187414.8A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP3599000A1 (fr
Inventor
Pierre-Olivier Chabod
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
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Filing date
Publication date
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Publication of EP3599000A1 publication Critical patent/EP3599000A1/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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
    • B66D3/00—Portable or mobile lifting or hauling appliances
    • B66D3/04—Pulley blocks or like devices in which force is applied to a rope, cable, or chain which passes over one or more pulleys, e.g. to obtain mechanical advantage
    • B66D3/046—Openable pulley blocks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
    • B66D2700/00—Capstans, winches or hoists
    • B66D2700/02—Hoists or accessories for hoists
    • B66D2700/026—Pulleys, sheaves, pulley blocks or their mounting

Definitions

  • the invention relates to a self-locking pulley descender whose operation is improved and more particularly to a self-locking pulley descender capable of supporting significant loads in the form of a self-locking pulley.
  • a pulley descender marketed under the name “MAESTRO” by the applicant.
  • a descender includes a pulley configured to rotate only in one direction around its axis of rotation.
  • the descender also includes a rotating cam which is configured to block the rope when the movement of the rope is intended to generate rotation of the pulley in the second direction of rotation.
  • the cam is in permanent or quasi-permanent contact with the rope so that the movement of the rope to generate the second direction of rotation of the pulley causes the rotation of the cam towards a blocking position.
  • the inventors realized that the speed of blocking varies significantly with the surface quality of the rope as well as with the temperature of the descender.
  • the document US 2014/262611 describes a belay system which comprises a rotating movable cam associated with a pulley.
  • the cam moves between a blocking position and a position allowing the rope to slide.
  • the pulley is associated with a pulley rotation speed detection system which is configured to cause the pulley to lock when the rotation speed exceeds a threshold speed.
  • An object of the invention aims to remedy these drawbacks by proposing a self-locking pulley which improves the blocking of the rope, in particular by means of a configuration in which the evolution of the coefficient of friction has less importance in the blocking rope.
  • a pulley according to claim 1 is used.
  • a spring is arranged to apply a force moving the cam towards the rope blocking zone.
  • the spring is arranged to move the first axis of rotation towards a first position. Applying a force to the rope to rotate the pulley in the first direction of rotation moves the first axis of rotation away from the first position
  • the first axis of rotation is mounted movable in rotation relative to the first flange around the second axis of rotation, the first axis of rotation being movable in the first direction of rotation and the second direction of rotation relative to the second axis of rotation, blocking the pulley in the second direction of rotation causing the movement of the first axis of rotation and the pulley in the second direction of rotation around the second axis of rotation.
  • the first axis of rotation is offset from the second axis of rotation so that the application of a constraint on the rope to rotate the pulley in the first direction of rotation generates a moment aimed at shifting the cam from the zone of rotation. blocking and that the disappearance of said constraint causes the cam to move towards the blocking zone.
  • the pulley when the pulley moves in the first direction of rotation, the pulley is in a first position which is further from the rope blocking zone than a second position representative of a blocking of the rope. rope.
  • the rotation of the pulley and of the first axis of rotation in the second direction of rotation causes the rotation of the cam around the second axis of rotation to bring the cam closer to the blocking zone.
  • cam it is advantageous to provide for the cam to be fixedly mounted on the second axis of rotation or on the first axis of rotation.
  • the first flange includes a first groove.
  • the pulley and the second axis of rotation are mounted on a support associated with a first pin passing through the first groove.
  • the movement of the first pin along the first groove causes the rotation of the support according to the first direction of rotation.
  • the descender is provided with a handle comprising a stop arranged to come into contact with the first pin, the rotation of the handle in the first direction of rotation causes the rotation of the first pin in the first direction of rotation.
  • the first flange includes a second groove.
  • the support is associated with a second pin passing through the second groove, a spring being fixed to the first flange to move the second pin in the second direction of rotation.
  • the spring is mounted around the second axis of rotation.
  • the pulley comprises a toothed wheel associated with at least one blocker and a locking spring.
  • the toothed wheel, the at least one blocker and the locking spring are arranged to allow rotation of the pulley in the first direction of rotation and prevent rotation in the second direction of rotation.
  • the pulley comprises a plurality of flats arranged in a groove of the pulley so as to define constrictions in the groove.
  • the invention also relates to a method of blocking a rope in a self-locking pulley.
  • the method allows easy blocking of the rope in the self-locking pulley by reducing the dependence on the coefficient of friction which exists between the rope and the self-locking pulley.
  • the blocking method is remarkable in that it includes the characteristics of claim 11.
  • THE figures 1 And 2 represent perspective views of a self-locking descender 1 with pulley 2.
  • the self-locking descender 1 has a first flange 3 provided with a side wall 3a defining a path for circulation of a rope 4 inside the descender 1.
  • the descender defines two rope entry/exit orifices in the descender 1.
  • the rope enters the descender through a first orifice passes over the pulley 2 and exits the descender through the second orifice.
  • the rope is divided into a first strand and a second strand depending on whether you are on one side or the other of pulley 2.
  • the descender has a circulation path which is intended to receive the rope 4.
  • the rope 4 moves inside the rope circulation path.
  • the rope circulation path has a support wall which makes the mechanical connection with the rope 4. When the rope is under tension, it presses on the support wall which applies a force to the descender.
  • FIG 1 represents a closed descender while the figure 2 represents an open descender. Opening descender 1 allows rope 4 to be installed or removed. Closing descender 1 allows rope 4 to be held in descender 1.
  • the descender 1 has a pulley 2 which is rotatably mounted relative to the first flange 3.
  • the pulley 2 rotates around a first axis of rotation A.
  • the pulley 2 is mounted on a first shaft 25 which defines the first axis of rotation A .
  • Shaft 25 is illustrated in figure 8 For example.
  • Pulley 2 is configured to only rotate in one direction of rotation.
  • the pulley 2 presents an autorotation and it is configured to rotate in a first direction of rotation denoted + and it is configured to be blocked when it is desired to rotate in the second direction of rotation denoted - and opposite in the first direction of rotation.
  • the pulley 2 rotates in the first direction of rotation.
  • pulley 2 locks.
  • the pulley 2 is also mounted movable relative to the first flange 3 to move between first and second positions.
  • FIG. 3 represents pulley 2 in the first position while the Figure 4 represents pulley 2 in the second position.
  • the second position is closer to the side wall 3a than the first position, which makes it possible to define a blocking position of the rope.
  • the first position allows the rope 4 to slide relative to the descender 1 in a configuration equivalent to a rotation of the pulley in the second direction of rotation.
  • the pulley 2 being locked in the second direction of rotation, the movement of the rope 4 is by sliding.
  • the pulley 2 blocks which causes the movement of the pulley 2 towards the second position and causes the blocking of the rope 4.
  • an additional force is applied to block the rope 4.
  • This embodiment is particularly advantageous because the rope 4 is in direct contact with the pulley 2 which increases the contact surface used to move towards the blocking position.
  • the increased contact surface between the pulley 2 and the rope 4 facilitates the movement of the pulley 2 towards the blocking position.
  • the pulley 2 being fixed because it is impossible to rotate in the second direction of rotation, the friction of the rope 4 on the pulley 2 is used to reach the blocking threshold position.
  • the pulley is only mounted to rotate around its axis of rotation so that the tension applied to the second strand of the rope blocks the pulley.
  • the movement of the rope generates a friction force opposing the force applied by a spring to move a cam and reach the locking position of the rope.
  • the cam having a reduced surface area, it is more difficult to achieve sufficient friction of the rope on the cam for the cam to reach the blocking position. It is also difficult to have sufficient friction between the rope and the pulley to counter the effect of the spring and ensure proper triggering of the lock. If the force generated by the spring is too weak, it may block the rope unexpectedly.
  • the movement of pulley 2 can be arbitrary to reach the blocking threshold position. It is possible to use a translation movement, a rotation movement or even a combination of these two movements. Particularly advantageously, a rotational movement is preferred because it makes it possible to better manage the force applied to the pulley 2 with regard to the tension present in the rope 4.
  • the first axis of rotation A is mounted movable in rotation relative to the first flange 3 around a second axis of rotation B different from the first axis of rotation A.
  • the first axis of rotation A is movable according to the first direction of rotation + and according to the second direction of rotation - relative to the second axis of rotation B. Blocking the pulley 2 according to the second direction of rotation - causes the movement of the first axis of rotation A and the pulley 2 in the second direction of rotation around the second axis of rotation B so that the distance between the pulley and the side wall 3a of the first flange 1 decreases to the threshold position where blocking occurs.
  • the rotation of pulley 2 can cause a movement of the first axis of rotation A to move away from a blocking position of the rope 4.
  • the pulley 2 moves in the first direction of rotation +, the pulley 2 is outside the second position and preferably in the first position which is further from the wall lateral 3a than the second position.
  • the rope 4 must not overcome a high friction force which makes it possible to maintain high efficiency when pulling a load fixed to the second strand.
  • the support wall of the circulation path is exclusively formed by the pulley which makes it possible to avoid friction zones of the rope.
  • the pulley 2 turns to move the portion of rope until the portion of rope exits the descender 1. During its movement in the descender, the portion of rope was only in contact with the pulley which limits the friction of the rope inside the descender. As illustrated in the different figures, the support wall of the circulation path defines a semi-circle which is formed by the pulley 2 which increases the quality of contact between the rope and the pulley. The pulley ensures the recovery of force in the first position and the second position of the support 7.
  • the pulley defines a rope circulation path with a semi-circle whose radius of curvature corresponds to the radius of the pulley in its groove.
  • the inner wall of the circulation path defines a semi-circle which corresponds to half of the pulley.
  • the weight of the load to be supported is taken entirely by the pulley and the rope 4 can circulate in the descender following the rotation of the pulley in a semi-circle which avoids the formation of sliding zones and therefore friction zones.
  • the circulation path defines a semi-circle by means of the pulley.
  • the rope is in contact with the pulley on half of the pulley.
  • the external wall of the pulley is devoid of coverage by the cam over more than half of the perimeter of the pulley, which allows almost complete force absorption by the pulley. The force taken up by the pulley occurs regardless of the position of the pulley between the first position and the second position.
  • the document US 2014/0262611 proposes a configuration with a movable cam, part of the support wall of which is formed by a pulley so as to modulate the friction force according to the translation speed of the rope.
  • the rest of the support wall is formed by a friction zone present on either side of a diameter of the pulley to ensure friction between the rope and the blocking system.
  • the descender 1 has a cam 5 or pad to ensure the blocking of the rope 4 against the side wall 3a of the first flange 3.
  • the rotation of the pulley 2 and the first axis of rotation A in the second direction of rotation causes the appearance of a force which induces the rotation of the cam 5 around the second axis of rotation B with a reduction in the distance between the cam 5 and the blocking zone up to the threshold position representative of the blocking of the rope.
  • the rotation of the pulley 2 around the first axis of rotation A in the first direction of rotation causes the appearance of a force which induces the rotation of the cam 5 around the second axis of rotation B with an increase in the distance between the cam 5 and the blocking zone to leave the blocking position of the rope 4.
  • the use of a movable cam 5 separate from the pulley 3 and projecting from the pulley 2 ensures better blocking of the rope 4 between the cam 5 and the side wall 3a.
  • the movement of the pulley 2 makes it possible to bring the cam 5 closer to its locking position, which makes it easier to obtain the locking of the rope 4.
  • the movement of the pulley 2 advantageously makes it possible to move the cam 5 in order to increase the applied tension by the cam 5 on the rope 4 by bringing it closer to the side wall 3a which makes it easier to obtain a threshold friction force ensuring the self-locking of the rope 4.
  • the cam 5 is mounted to rotate around a second shaft 26 which defines a second axis of rotation B distinct from the first axis of rotation A.
  • the cam 5 is mounted to rotate around the second axis of rotation B so that the position of the cam 5 in relation to the blocking zone is linked to the position of the first shaft 25.
  • the first axis of rotation A is offset from the second axis of rotation B so that the application of a force on the rope 4 to rotate the pulley 2 in the first direction of rotation + generates a force aimed at moving the cam away 5 of the blocking zone.
  • the application of a force on the rope 4 to rotate the pulley 2 in the second direction of rotation - generates a force aimed at bringing the cam 5 closer to the blocking zone.
  • the offset between the two axes of rotation A and B induces the appearance of a torque when the first strand of rope 4 or the second strand of rope 4 is pulled. It is particularly advantageous to use this torque to move the cam 5 or generate a force aimed at moving the cam 5.
  • the two axes of rotation are spaced by a distance which is less than the radius of the pulley 2.
  • the angular offset of the axis of the pulley and of the cam 5 is reduced between the two positions which makes it possible to have a recovery of effort by means of pulley 2 whose position changes little depending on the direction of rotation sought for the pulley.
  • the first axis of rotation A and the second axis of rotation B are placed so that the weight of the pulley 2 causes the movement of the cam 5 out of the blocking position of the rope 4.
  • the first axis of rotation A and the second axis of rotation B are placed so that when the first strand of rope is pulled, the pulley 2 and the cam 5 move to move away from the blocking position before pulley 2 begins to rotate around the first axis of rotation A.
  • the cam 5 is fixedly mounted on the first shaft 25, this configuration makes it possible to have, for example, the rotation of the cam 5 in an identical manner to the rotation of the second axis of rotation B.
  • first flange 3 comprises a first groove 6 and in which the position of the pulley 2 is represented by the position of an indicator in the first groove 6. It is then possible to quickly determine whether the blocking of rope 4 comes from the position of pulley 2 or from another element. If the indicator cooperates with a handle 12, the position of the handle 12 provides an indication of the position of the indicator.
  • the pulley 2 and the second axis of rotation B are mounted on a support 7 associated with a first pin 8 passing through the first groove 6.
  • the movement of the first pin 8 along the first groove 6 causes the rotation of the support 7 according to the first direction of rotation + and according to the second direction of rotation.
  • the rotation of the support 7 causes the rotation of the first pin 8.
  • the support 7 moves between a first position and a second position.
  • it is particularly advantageous to provide that the axis of rotation B of the support 7, the axis of rotation of the pulley and the point of attachment of the descender to an anchor point are not aligned because this facilitates rotation of the cam between its blocking position and its other position.
  • the first flange 3 defines a second groove 9.
  • the position of the pulley 2 relative to the first flange 3 is represented by the position of a second indicator in the second groove 9.
  • the support 7 is associated with a second pin 10 which passes through the second groove 9.
  • a spring 11 fixed to the first flange 3 to move the pulley 2 towards the second position, that is to say move the second pin 10 to facilitate the blocking of the rope 4.
  • the spring 11 is configured to move the pulley 2 in the second direction of rotation - and tend towards the blocking position of the rope 4.
  • the spring 11 is fixed to the second indicator, here the second pin 10 so as not to interfere with the rotation of the pulley 2 and the path of the rope 4.
  • the spring 11 is separated from the pulley 2 by the first flange 3 which makes it possible to have a compact architecture in the path of the rope 4.
  • the spring 11 can be produced by any known technique for example with a helical spring in torsion, traction or compression. It is also possible to form a spring 11 by elastic deformation of one or more plates. It is particularly advantageous to provide that the spring 11 is mounted around the second axis of rotation B, which makes it possible to gain in compactness.
  • the descender 1 includes a handle 12 as illustrated in figures 1 to 7 .
  • the handle 12 comprises a stop 12a arranged to come into contact with the first pin 8.
  • the rotation of the handle 12 according to the first direction of rotation causes the stop 12a to come into contact with the first pin then the movement of the first pin according to the first direction of rotation +.
  • This embodiment is particularly advantageous when the second pin 10 is associated with the spring 11.
  • the spring 11 is arranged to move the pulley 2 towards the blocking position.
  • the rotation of the handle 12 from a waiting position makes it possible to bring the stop 12a and the first pin 8 into contact.
  • the stop 12a presses on the first pin 8 which moves.
  • the handle 12 exerts a force which opposes the force applied by the spring 11 which moves the pulley 2 and the cam 5 if necessary.
  • the stress applied to the rope 4 decreases, which allows the rope 4 to slide.
  • the movement of the handle 12 makes it possible to regulate the distance between the pulley 2/the cam 5 and the side wall 3a, which makes it possible to regulate the intensity of the friction force and therefore the speed of movement of the rope 4 in the descender 1.
  • the spring 11 moves the cam 5 towards the blocking zone, that is to say moves the cam 5 towards a blocking position of the rope so that, by default, the cam 5 blocks the rope 4 independently of the intensity of the friction between the rope 4 and the pulley 2.
  • the cam 5 is by default in a position which blocks the rope 4.
  • the torque generated opposes the spring which allows movement of the pulley and movement of the cam.
  • the cam no longer blocks the rope which can be pulled taking advantage of the rotation of the pulley to obtain high efficiency when pulling.
  • the self-locking descender 1 comprises a pulley 2 provided with a toothed wheel 13 associated with at least one blocker 14 and with a spring 15 called a locking spring.
  • the toothed wheel 13, the at least one blocker 14 and the spring 15 are arranged to authorize the rotation of the pulley 2 in the first direction of rotation + and prevent the rotation of the pulley 2 in the second direction of rotation -.
  • This configuration is particularly advantageous because the locking system according to the second direction of rotation is located inside the pulley 2 which does not hinder the path of the rope 4.
  • the spring 15 is mounted in pulley 2 in order to facilitate its integration and the compactness of pulley 2.
  • other configurations are possible.
  • the pulley 2 comprises a plurality of flats 16 arranged in a groove of the pulley 2 so as to define constrictions in the groove.
  • These multiple reductions in the section of the groove of the pulley 2 form zones of privileged friction when the rope 4 must slide along the pulley 2.
  • a smooth roller or a faceted roller can define a groove whose section is more or less pronounced V-shaped in order to define the friction force.
  • the first flange 3 is associated with a second flange 17 which is mounted movable relative to the first flange 3.
  • the second flange 17 is mounted movable in rotation around a third axis of rotation C. The rotation of the second flange 17 makes it possible to open or close the descender 1 as is illustrated in figures 1 And 2 .
  • the first flange 3 and the second flange 17 each define a fixing opening 18.
  • the two fixing openings 18 are placed opposite each other so as to cooperate with a connector (not shown), for example a carabiner, which allows to fix the descender 1 to a fixed point.
  • the first flange 3 also defines a second fixing opening 19 for installing, for example, a carabiner.
  • the first flange 3 includes a blocking stop 20 which is configured to block the progression of the second flange 17 to its closed position which closes the descender 1.
  • the cam 5 is fixed on the support 7 by means of a fixing element 22 which extends through the first opening 6 to form the first pin 8.
  • the fixing element 22 passes through the support 7 until reaching a second support 23.
  • the second support 23 is fixed to the first support 7.
  • the first support 7 and the second support 23 are separated by the pulley 2 and by the cam 5.
  • the cam 5 is fixedly mounted on the support 7.
  • the first pin 8 is surrounded by one or more bearings 24 which makes it possible to improve sliding in the first groove 6.
  • the axis of rotation A is advantageously defined by a shaft 25.
  • the shaft 25 has a first through hole which aligns with a first through hole of the support 7 in order to insert a second shaft 26 forming the second axis of rotation B
  • the second support 23 has a first hole which aligns with the first hole of the shaft 25 which allows the rotation shaft 25, the first support 7 and the second support 23 to be fixed by means of the second shaft 26.
  • the shaft 25 also comprises a second through hole which aligns with a second through hole of the support 7 and possibly a second through hole of the second support 23.
  • the second through holes are crossed by a second rod forming the pin 10. The use of two series of through holes ensures that the movement applied to the support 7 results in the same movement on the shaft 25 and therefore on the first axis of rotation as well as on the cam 5.
  • the shaft 25 is separated from the support 7 by a bearing 27 which makes it possible to improve the rotation of the shaft 25 relative to the support 7 and therefore to improve the rotation of the pulley 2 by relative to the support 7.
  • the pulley 2 is of circular section and has a groove for the passage of the rope 4.
  • the pulley 2 is in the form of a ring in order to install the first axis of rotation A in the center of the pulley 2.
  • the pulley advantageously defines a toothed wheel 13.
  • the toothed wheel 13 cooperates with blockers 14 which are installed on the shaft 25 as well as with springs 15 which press on the blockers 14, to shift the blockers 14 outwards and the teeth of the toothed wheel 13.
  • the pulley 2 is rotatably mounted by means of a bearing 21, for example a ball bearing which is inserted between the pulley 2 and the shaft 25.
  • the shaft 25 defines the first axis of rotation A and the bearing 21 facilitates the rotation of the pulley 2 relative to the shaft 25.
  • the use of the descender 1 can be described as follows.
  • a self-locking descender 1 according to one of the multiple embodiments described above is provided.
  • the rope 4 is installed in the descender 1 between the pulley and the side wall 3a.
  • the user pulls on the first strand of the rope 4 which allows the pulley 2 to rotate in a first direction of rotation +.
  • the load attached to the second strand of rope 4 is lifted.
  • the second strand of rope 4 is pulled to rotate the pulley 2 in the second direction of rotation - which causes the blockage of the pulley 2.
  • the pulley 2 moves in the direction of a side wall until the rope is blocked 4.
  • the force applied to the second strand of rope causes the support 7 to move, here a rotational movement with a rotational movement of the cam 5.
  • the spring 11 moves the support 7 towards the blocking position so that the descender 1 blocks the rope 4 by default.
  • the pulley 2 moves so as to unblock the rope 4 and facilitate the rotation of the pulley 2 and therefore the performance when raising the load present on the second strand of rope 4.
  • the handle is mounted to rotate around a shaft 28 which defines an axis of rotation C.

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  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Pulleys (AREA)
  • Clamps And Clips (AREA)
  • Emergency Lowering Means (AREA)
  • Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
EP19187414.8A 2018-07-24 2019-07-19 Descendeur a poulie Active EP3599000B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1856877A FR3084264B1 (fr) 2018-07-24 2018-07-24 Descendeur a poulie

Publications (2)

Publication Number Publication Date
EP3599000A1 EP3599000A1 (fr) 2020-01-29
EP3599000B1 true EP3599000B1 (fr) 2023-12-13

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP19187414.8A Active EP3599000B1 (fr) 2018-07-24 2019-07-19 Descendeur a poulie

Country Status (6)

Country Link
US (1) US10828516B2 (es)
EP (1) EP3599000B1 (es)
CN (1) CN212757097U (es)
BR (1) BR102019015108B1 (es)
ES (1) ES2966904T3 (es)
FR (1) FR3084264B1 (es)

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CN111840852A (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
USD972724S1 (en) * 2020-09-29 2022-12-13 Livsmed Inc. Pulley for surgical instrument
US20220161071A1 (en) * 2020-11-23 2022-05-26 Yoke Industrial Corp. Fall arrester
US11905148B2 (en) 2021-01-04 2024-02-20 Basecamp Innovations Ltd Snatch block with slide-open spring-biased cheek, dual-plunger lock release, and integral swivel stud
CN112827091B (zh) * 2021-01-25 2022-07-22 列耀乐 一种森林救援用自动控制急停绳索滑轮
USD1012673S1 (en) * 2021-02-19 2024-01-30 Coulter Ventures, Llc. Pulley
USD1015125S1 (en) * 2021-02-19 2024-02-20 Coulter Ventures, Llc. Pulley
FR3125971A1 (fr) 2021-08-03 2023-02-10 Zedel Dispositif d’assurage et procédé d’utilisation

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RU2137519C1 (ru) * 1998-11-24 1999-09-20 Козлов Виктор Алексеевич Устройство для подъема и спуска
US7658264B2 (en) 2005-03-16 2010-02-09 Kirk Martin Mauthner Combination descender, pulley and force limiting rope brake
US7419138B1 (en) 2007-02-23 2008-09-02 Cmc Rescue, Inc. Self-camming pulley
FR2962724B1 (fr) 2010-07-16 2012-08-03 Zedel Poulie a bloqueur deverrouillable
US20130043450A1 (en) * 2011-08-19 2013-02-21 Russ Kommer Lifting or locking system and method
US9623269B2 (en) * 2013-03-14 2017-04-18 Black Diamond Equipment, Ltd. Systems for assisted braking belay with a cam-clutch mechanism
CA2982124C (en) * 2015-04-07 2023-04-25 Harken, Incorporated High load descender with adaptive release linkage

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BR102019015108B1 (pt) 2023-04-25
CN212757097U (zh) 2021-03-23
US20200031638A1 (en) 2020-01-30
US10828516B2 (en) 2020-11-10
FR3084264A1 (fr) 2020-01-31
EP3599000A1 (fr) 2020-01-29
ES2966904T3 (es) 2024-04-24
FR3084264B1 (fr) 2020-09-18
BR102019015108A2 (pt) 2020-02-04

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