EP2857069A2 - Selbstblockierendes Sicherungs- und Abseilgerät - Google Patents

Selbstblockierendes Sicherungs- und Abseilgerät Download PDF

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Publication number
EP2857069A2
EP2857069A2 EP14187796.9A EP14187796A EP2857069A2 EP 2857069 A2 EP2857069 A2 EP 2857069A2 EP 14187796 A EP14187796 A EP 14187796A EP 2857069 A2 EP2857069 A2 EP 2857069A2
Authority
EP
European Patent Office
Prior art keywords
cam
rope
flange
guide
path
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.)
Withdrawn
Application number
EP14187796.9A
Other languages
English (en)
French (fr)
Other versions
EP2857069A3 (de
Inventor
Patrick Lefebvre
Mathieu Mansuy
Romain Molliex
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.)
Simond SAS
Original Assignee
Simond 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 Simond SAS filed Critical Simond SAS
Publication of EP2857069A2 publication Critical patent/EP2857069A2/de
Publication of EP2857069A3 publication Critical patent/EP2857069A3/de
Withdrawn legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B1/00—Devices for lowering persons from buildings or the like
    • A62B1/06—Devices for lowering persons from buildings or the like by making use of rope-lowering devices
    • A62B1/14—Devices for lowering persons from buildings or the like by making use of rope-lowering devices with brakes sliding on the rope
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B29/00—Apparatus for mountaineering
    • A63B29/02—Mountain guy-ropes or accessories, e.g. avalanche ropes; Means for indicating the location of accidentally buried, e.g. snow-buried, persons

Definitions

  • the present invention relates to a self-locking chute-insurer for use in the control of scrolling a rope, for example for the descent of a person along a rope, or for belaying a person.
  • the cam return spring urges the cam away from the braking nose, to promote the sliding of the rope in the absence of tension on the rope.
  • the present invention aims at avoiding the drawbacks of known descender-insurers, by making it possible to effectively fulfill the two contradictory functions of a descender-insurer, namely a great facility and a great efficiency to allow the voluntary running of a rope, and a sure blocking of the rope as soon as a tension occurs and in the absence of intervention by the user, even in the presence of a low tension and / or a low rope running speed.
  • the descender-insurer can be deliberately oriented by the user away from the blocking position to confer it an unlocking orientation in which the rope exit strand is in extension of the rope entrance and thus avoids biasing the cam towards the braking nose, ensuring an effective and adjustable release even in the presence of the residual braking caused by the biasing the cam return spring.
  • the cam in its movement towards and away from the braking nose, can be guided by guide rails.
  • the cam is rotatable about an axis of cam rotation which is, opposite the cam, located on the other side of the intermediate path section and offset towards the proximal end zone.
  • the cam is carried by the second lateral rope guide flange.
  • the cam is advantageously associated with a first cam lug which moves in an arcuate slot provided in the second lateral chord guiding flange, so as to guide the cam and to take back part of the straining forces. traction supported by the descender-insurer.
  • the second cam lug is at the beginning of the first guide section and opposes the rotation of the second flange, so that the cam, by its second lug cam, ensures itself a first locking of the second flange in the closed position.
  • the cam actuator comprises a lever articulated on one of the lateral guiding flanges and mechanically connected to the cam to move it away from the braking nose by a voluntary action of the user. .
  • the user can adjust the braking of its descent along the rope, by operating the lever.
  • the unlocking button mentioned above can be advantageously covered by the lever when the latter is at rest, avoiding an inadvertent operation of the unlocking button may cause an unlocking of the second flange relative to the first flange.
  • the flanges are dimensioned so that, in the braking position where the cam tightens the rope against the braking nose, the cam is fully housed in the transverse rope passing gap. This prevents inadvertent manipulation of the cam away from the braking nose, and forces the user to direct the descender-insurer to produce unlocking.
  • the self-locking descender-insurer 1 allows the control of the running of a rope 3 ( Figures 5 to 7 ), in a direction of travel illustrated by the arrow F.
  • the rope 3 comprises an inlet strand 3A, an output strand 3B, and an intermediate section 3C which passes through the self-locking descender-insurer 1.
  • the self-locking descender-insurer 1 comprises a connecting apparatus 4 and attachment means 5.
  • the connecting device 4 is shaped to ensure a connection with a rope 3 by controlling the sliding or locking of the rope 3 in the connecting device 4.
  • the attachment means 5 are shaped to allow the selective snapping of the descender-insurer 1 is at a fixed point or to the shoulder of a user.
  • the connecting device 4 comprises a connecting body 4a with a proximal end 4b connected to the attachment means 5.
  • the connecting device 4 further comprises second connecting means, comprising a braking nose 4e cooperating with a cam 4d mounted to move on the connecting body 4a and adapted to press the rope 3 against the braking nose 4e.
  • the attachment means 5, in the preferred embodiment illustrated in the figures, comprise an open ring connector body 5a and a closing finger 5b.
  • the connector body 5a develops between a proximal end zone 5c and a distal end zone 5d, and has a lateral opening 5e ( figures 1 and 3 ) that the finger 5b fills in the closed position and the finger 5b leaves accessible in the open position.
  • the closing finger 5b pivots about a hinge axis 5h perpendicular to the general plane of the connector body 5a open ring.
  • the proximal end 4b of the connecting body 4a forms continuity with the distal end region 5d of the connector body 5a, so that the connector body 5a and the connecting body 4a form a unitary assembly having a rigid body formed of the connecting body 4a and the connector body 5a.
  • attachment means 5 in the form of a simple lumen formed in the proximal end of the connecting body 4a, that is to say without a closing finger, this light allowing a connection by a carabiner, in a manner known per se.
  • a first lateral chord guiding flange 6 is integral with the connecting body 4a, and integral with the braking nose 4e, the first lateral chord guiding flange 6 preferably being oriented in a plane perpendicular to the general plane of the connector body 5a. .
  • the second lateral guiding flange 7 is movably mounted on the connecting body 4a, between a spaced apart position ( figure 7 ) for the placement and removal of the rope, and a closed position ( figures 2 , 5 and 6 ) in which the rope is trapped in the transverse rope path 8.
  • the braking nose 4th secured to the first lateral rope guide flange 6, passes through the gap between the first and second lateral rope guide flanges 6 and 7.
  • the cam 4d is engaged between the first and second side chord guiding flanges 6 and 7, and is movably mounted to and away from the braking nose 4e.
  • the cam 4d is carried by the second lateral chord guiding flange 7, on which it is rotatable about an axis of cam rotation 9.
  • the axis of cam rotation 9 can be mounted in a slot 9a of the second lateral rope guide flange 7.
  • the axis of cam rotation 9 ( figure 6 ) and the cam 4d are respectively located on either side of the transverse path of rope passage 8, and the axis of cam rotation 9 is closer to the proximal end zone 5c than is the cam 4d.
  • the cam 4d is associated with a first cam lug 10 which, during the rotation of the cam 4d, moves in a circular arc 7a of the second light side guide flange 7 ( figure 4 ).
  • the braking nose 4e is advantageously constituted by a wear part made of steel on the connecting body 4a itself made of aluminum alloy, as can be seen in FIG. figure 4 .
  • the first lateral guiding flange 6 is attached and fixed to the connecting body 4a by rivets such as rivets 16 and 13a ( figure 4 ), and it comprises a slot constituting a guide path 11 for a second cam lug 12.
  • This guide path 11 and the second cam lug 12 participate in the recovery of the forces supported by the cam 4d.
  • the guide path 11 serves to fulfill a second function, namely the locking of the second lateral guiding flange 7 in the closed position, as will be explained later.
  • a lever 13 is hinged to the connecting body 4a and the first lateral rope guiding flange 6 around the rivet 13a forming an axis of rotation perpendicular to the plane of the first lateral guiding flange 6, and is disposed on the outer face of the rope.
  • the rivet 13a forming the axis of rotation of the lever 13 passes through a hole 6b of the first lateral guiding flange 6, and passes through a hole 4g of the connecting body 4a and a hole 4h.
  • the lever 13 cooperates with the end of the second cam lug 12 protruding out of the guide path 11, allowing a user to rotate the cam 4d away from the braking nose 4e, by pivoting the lever 13 into the direction illustrated by the arrow 13c.
  • the lever 13 constitutes a cam actuator, operable by a user to move the cam 4d away from the braking nose 4e.
  • a lever return spring 13d recalls the lever in the rest position illustrated in particular on the figures 8 and 9 in which the lever is oriented along the connecting body 4a, away from the second cam lug 12.
  • a cam return spring 14 continuously urges the cam 4d in its movement between the first and second side rope guiding flanges 6 and 7, in the direction toward the cam 4d towards the braking nose 4e.
  • the transverse path of rope passage 8 is delimited by the first lateral rope guide flange 6, by the second lateral rope guide flange 7, by the braking nose 4e, by the cam 4d, and by the connecting body 4a.
  • the transverse path of rope passage 8 develops between a path entrance 8a in the vicinity of the braking nose 4e, and an opposite path exit 8b. Between the path entry 8a and the path exit 8b, an intermediate portion 3C of the rope 3 passes through an intermediate path portion 8c between the braking nose 4e and the cam 4d.
  • the input strand 3A of the rope 3 can freely go around the braking nose 4e, to take all orientations between a quasi-direct orientation in extension of the section 3C trapped between the nose 4th brake and cam 4d (see figure 5 ), and an illustrated orientation on the figure 6 wherein the input strand 3A of the rope 3 is around the braking nose 4th.
  • the path exit 8b is shaped so as to modify the braking of the rope 3 as a function of the orientation of the exit rope 3B of the rope 3 between a locking orientation, illustrated in FIG. figure 6 , in which the output strand 3B surrounds the cam 4d, and an orientation of release, illustrated on the figure 5 , where the output strand 3B is substantially in extension of the intermediate portion 3C of rope between the cam 4d and the braking nose 4e.
  • the path exit 8b develops laterally along a large opening by flaring away from the intermediate path portion 8c, between the first and second lateral chord guiding flanges 6 and 7, from an output portion. blocking 8d to a release output portion 8e.
  • the cam 4d has a clamping section 30, facing the braking nose 4e, and followed by a convex guide section 31 developing in an arc at an angle B of more than 90 °.
  • the locking output portion 8d envelops the cam 4d along its convex guide section 31.
  • the path exit 8b is limited by the connecting body 4a according to a guide surface 15 defining the release output portion 8e.
  • the release output portion 8e is substantially in line with the path entry 8a and with the intermediate path portion 8c, defining a substantially rectilinear passage that can be traversed directly by the output strand 3B of the rope 3 when he is himself in liberation orientation illustrated on the figure 5 .
  • the output strand 3B of the rope 3 can slide from the path entrance 8a to the path exit 8b through the intermediate section 8c without biasing the cam 4d to the braking nose 4e.
  • the sliding of the rope 3 tends rather to urge the cam 4d away from the braking nose 4e, because of the particular position of the axis of cam rotation 9.
  • the cam 4d is arranged so that when the strand 3B rope exit is in blocking orientation and runs through the blocking exit portion 8d by wrapping the cam 4d, a tension of the rope exit strand 3B then urges the cam 4d towards the braking nose 4e, and so as to when the rope exit strand 3B is in release orientation and traverses the release output portion 8e without wrapping the cam 4d, a tension of the rope exit strand 3B does not bias the cam 4d towards the nose of the rope.
  • braking 4th but a longitudinal sliding of the rope 3 on the contrary solicits the cam 4d away from the braking nose 4th.
  • the user When using the fall-under-loader 1, the user orients the fall-auto-insurer 1 against the rope as shown on the figures 5 and 6 .
  • the auto-locking descender-insurer 1 is left free in orientation by the user around the hooking means 5 and starts to rotate itself R1 to a braking position where the connecting device 4 is directed towards the strand 3B, exerting a braking on the rope 3.
  • the self-locking chute-insurer 1 prohibits the sliding on the rope 3.
  • the output end 3B of the rope 3 is around the cam 4d, and causes the rotation of the cam 4d about its axis of rotation 9 in the direction towards the braking nose 4e, so that the intermediate section 3C of the rope 3 is pinched between the cam 4d and the braking nose 4th, prohibiting the sliding of the rope 3.
  • the self-locking descender-insurer 1 is placed deliberately in the release position where the connecting device 4 is folded away from the output strand 3B by a bias R2 of the user, to release the sliding of the rope 3
  • the inlet strand 3A, the intermediate section 3C and the outlet strand 3B are substantially in alignment with each other, that is to say that the rope 3 traverses the transverse path of rope passing. 8 live.
  • the guide surface 15 is substantially parallel to the traction axis II, allowing the exit strand 3B to approach the attachment means 5.
  • the user further promotes the sliding of the rope 3 by manually pulling the output strand 3B parallel to the traction axis I-I, orientation in which the braking is minimal.
  • the user can, for example, ensure a climber whose progression requires a sliding of the rope 3, and which must be retained in a certain way in case of a fall, that is to say during a pull of the rope according to the arrow F as indicated in figure 6 .
  • the user simply releases the auto-decreasing chute-insurer 1 which, from the release position of the figure 5 automatically rotates to the lock position of the figure 6 under the effect of the traction of the rope 3 according to the arrow F, the traction axis II then moving in line with the output strand 3B of the rope 3.
  • the second lateral rope guide flange 7 is movable between a spaced apart position, illustrated on FIG. figure 7 , and a closed position illustrated on the figures 5 and 6 . Between these two positions, the second lateral chord guiding flange 7 pivots on the connecting body 4a about a flange axis 16.
  • the flange axis 16 is, on the second lateral guiding flange 7, offset relative to the cam axis 9 in the direction of the fastening means 5.
  • the two lateral rope guiding flanges 6 and 7 are opposite one another and trap the rope 3 in the transverse rope passing interval 8 between the connecting body 4a, the braking nose 4e and the cam 4d.
  • the second lateral chord guiding flange 7 is sufficiently pivoted around the flange axis 16 so that the cam 4d is away from the first lateral guiding flange 6 and allows in place and removing the rope 3 as shown on the figure 7 .
  • a first locking means is to give a particular shape to the guide path 11 of the second cam lug 12, as illustrated in the figures 2 , 4 , 8 , 9 and 10 .
  • the opening of the faller-insurer self-locking 1 by pivoting of the second lateral chord guiding flange 7 is possible only by a double maneuver, namely a first pivoting of the cam 4d around its axis of cam rotation 9 to bring the second cam lug 12 at the beginning of the second section 11b, then a rotational movement of the second lateral guiding flange 7 around its flange axis 16.
  • the figures 8 and 9 illustrate respectively the beginning and the end of this first movement.
  • the figures 9 and 10 respectively illustrate the beginning and the end of the second movement.
  • An additional security can be provided to prevent the unintentional opening of the automatic faller-insurer 1. This is to provide a lock actuated by an unlocking button 17, the lock being disposed between the second lateral flange 7 and the connecting body 4a. In this case, a third operation is necessary to ensure the unlocking, by action on the unlocking button 17, by pivoting of the cam 4d, then by pivoting of the second lateral guiding flange 7.
  • This lever 13 is used when the auto-decreasing descender-insurer 1 is oriented as illustrated in these figures, with the attachment means 5 directed downwards and with the braking nose 4e directed upwards.
  • the self-locking descender-insurer 1 is then used as a descender, to slow down the progression of the user downhill along the rope 3, or as an insurer to slow down the scrolling rope holding a climber during its descent.
  • the lever 13 is recalled in the rest position illustrated on the figures 1 and 8 by the lever return spring 13d ( figure 4 ). In this position, the lever 13 is away from the second cam lug 12, allowing the cam 4d to move under the action of the cam return spring 14 and the rope 3.
  • the self-locking chute-insurer 1 is then initially in the locking position illustrated on the figure 6 , the user being hooked to the hooking means 5, the rope exit strand 3B being hooked to a fixed high point. Since the self-locking descender-insurer 1 is oriented as shown in the figure, the cam 4d is pushed towards the braking nose 4th and prohibits the sliding of the rope 3.
  • the closing finger 5b articulated on the connector body 5a along the hinge axis 5h comprises a locking segment 20 which extends the closing finger 5b beyond the hinge axis 5h.
  • the second lateral chord guiding flange 7 overlaps this locking segment 20, preventing pivoting of the closing finger 5b towards the interior space of the connector body 5a, c that is to say, prohibiting the opening of the attachment means 5.
  • the second lateral chord guiding flange 7 constitutes in itself a locking means for the fastening means 5, so that the The user can not unhook until the rope has been removed after pivoting the second lateral rope guide flange 7 to its remote position.

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  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Pulmonology (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Emergency Lowering Means (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
  • Braking Arrangements (AREA)
EP20140187796 2013-10-07 2014-10-06 Selbstblockierendes Sicherungs- und Abseilgerät Withdrawn EP2857069A3 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1359723A FR3011475B1 (fr) 2013-10-07 2013-10-07 Descendeur-assureur autobloquant

Publications (2)

Publication Number Publication Date
EP2857069A2 true EP2857069A2 (de) 2015-04-08
EP2857069A3 EP2857069A3 (de) 2015-04-22

Family

ID=49876839

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20140187796 Withdrawn EP2857069A3 (de) 2013-10-07 2014-10-06 Selbstblockierendes Sicherungs- und Abseilgerät

Country Status (4)

Country Link
US (1) US9573002B2 (de)
EP (1) EP2857069A3 (de)
CN (1) CN104548394B (de)
FR (1) FR3011475B1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3159047A1 (de) * 2015-10-21 2017-04-26 Matteo Scribano Sicherungsvorrichtung

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105833437B (zh) * 2016-05-30 2021-05-14 广西大学 一种绳索下降器
CA3047560C (en) 2016-12-16 2020-03-10 3M Innovative Properties Company Fall-protection apparatus with braking system
US10035028B1 (en) * 2017-01-04 2018-07-31 Mallory Safety+Supply Emergency descender device
USD842079S1 (en) * 2017-12-21 2019-03-05 Rud Ketten Rieger & Dietz Gmbh U. Co. K.G. Hook
US11339852B1 (en) 2021-04-27 2022-05-24 Daniel Austin Adjustable hook with strap

Citations (2)

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Publication number Priority date Publication date Assignee Title
EP0688581B1 (de) 1994-06-23 1999-09-08 Zedel Entkuppelbares selbstblockierendes Abseilgerät
JP2011200640A (ja) 2010-03-01 2011-10-13 Kinji Oshio クライミング用ロープの制動装置

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JP2011200640A (ja) 2010-03-01 2011-10-13 Kinji Oshio クライミング用ロープの制動装置

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3159047A1 (de) * 2015-10-21 2017-04-26 Matteo Scribano Sicherungsvorrichtung

Also Published As

Publication number Publication date
EP2857069A3 (de) 2015-04-22
FR3011475A1 (fr) 2015-04-10
FR3011475B1 (fr) 2016-03-04
CN104548394A (zh) 2015-04-29
CN104548394B (zh) 2018-01-02
US20150096838A1 (en) 2015-04-09
US9573002B2 (en) 2017-02-21

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