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EP4389244A1 - Nockenverriegelungsvorrichtung und verfahren zum verstellen eines drahtelements einer nockenverriegelungsvorrichtung - Google Patents

Nockenverriegelungsvorrichtung und verfahren zum verstellen eines drahtelements einer nockenverriegelungsvorrichtung Download PDF

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Publication number
EP4389244A1
EP4389244A1 EP23216215.6A EP23216215A EP4389244A1 EP 4389244 A1 EP4389244 A1 EP 4389244A1 EP 23216215 A EP23216215 A EP 23216215A EP 4389244 A1 EP4389244 A1 EP 4389244A1
Authority
EP
European Patent Office
Prior art keywords
rod
head
wire element
locking device
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.)
Pending
Application number
EP23216215.6A
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English (en)
French (fr)
Inventor
Pierre Plaze
Aurélie BERGEZ
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 EP4389244A1 publication Critical patent/EP4389244A1/de
Pending legal-status Critical Current

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Classifications

    • 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
    • A63B29/024—Climbing chocks
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B2225/00—Miscellaneous features of sport apparatus, devices or equipment
    • A63B2225/09—Adjustable dimensions

Definitions

  • the invention relates to a cam locking device, to a method of adjusting a wire element of a cam securing device.
  • a climber is required to place protection points in a wall.
  • the climber successively installs several points of protection which are intended to support him in the event of a fall.
  • Some walls are equipped with pre-installed protection points, for example in the form of “spits” which are sealed into the rock.
  • Other walls are not equipped with such points so that the climber must find the crevice that is most suitable for installing his protection point.
  • crevices are generally holes, cracks, chutes or any other hollow which is deep enough to allow the introduction of a jammer.
  • crevices are generally holes, cracks, chutes or any other hollow which is deep enough to allow the introduction of a jammer.
  • Passive jammers are often formed by metal parts having a specific shape. In a first position, the jammer can be inserted into a crack in a wall and in a second position the jammer is wedged between two opposite faces. It is then possible to easily install and remove the jammer provided it is placed in the correct spatial configuration inside the hole. On the contrary, in the event of a fall, the spatial configuration of the jammer will be such that it will be stuck between two opposite faces of the hole.
  • cam jammer In addition to passive jammers, active jammers are also known as cam or “friend” jammers.
  • the cam jammer is equipped with a head which has a plurality of cams.
  • the cams are movably mounted around one or more pivot shafts.
  • the cams move between a retracted position and an extended position. In the retracted position, the head takes up less space than in the extended position.
  • the head of the jammer is introduced into a crack in its retracted position, then the cams seek to move towards the extended position which presses the cams against the two opposite walls of a crack.
  • the shape of the cams has the effect of increasing the force applied to the faces of the crack when the jammer is pulled.
  • a cam jammer has, at a first end, a head provided with several rotating cams.
  • the second end of the cam jammer is an annular end that is configured to receive a carabiner and serve as an anchor point for the climber.
  • the head is mechanically connected to the annular end by means of a cable which is generally a steel cable.
  • the two ends of the cable are trapped in the head of the jammer by crimping.
  • the cable extends continuously between the two ends along the body and it extends along the annular end so as to ensure mechanical continuity between the end fixed to the wall and the end intended to support the climber .
  • the cams are actuated by means of a trigger which is mounted to slide along the rod.
  • a trigger which is mounted to slide along the rod.
  • cam jammers which describe different configurations of cams, cables, rods or annular ends.
  • the metal cable which extends from one end to the other of the cam jammer is in the form of a "U" whose two upper ends are fixed to the head by crimping while the portion base which is generally the central portion defines the annular end.
  • the documents US2021/0001181 And US2020/034075 illustrate a cam jammer whose two ends of the metal cable are crimped into the head under the axes of rotation of the cams.
  • the documents US2020/034075 And US4,832,289 also disclose an embodiment in which only one end of the cable is crimped into the head of the jammer. The other end is crimped to form the annular end.
  • the document US 6,679,466 illustrates a cam jammer in which the two ends of the metal cable each go around an anchoring shaft of the head. The two ends form a loop of cable which is crimped to provide mechanical continuity along the cam clamp.
  • the length of the jammer is defined with the distance that the cable is crimped.
  • the lifespan of such a strap is much less than the lifespan of the steel cable used previously and much less than the lifespan of the head.
  • the splicing step is a long and expensive step. It also appears that the dimension of the loop is less well controlled than with the crimping stages, which can generate length differences in the jammers and therefore bother the climber. This requires adapting the length of the rod.
  • the cam locking device In order to ensure precise placement of the cams in a crack, it is important that the cam locking device has a certain rigidity perpendicular to the axis which connects the head and the annular end. This requires a complex assembly of the different components in relation to each other. According to the teaching of the document US10,143,892 , two springs are installed between the two portions of the rod before forming the loop to constrain the textile wire element. This complicates the formation of the splice loop.
  • An object of the invention consists of providing a cam locking device which has good rigidity perpendicular to the direction connecting the head and the annular end while having a simpler design to possibly facilitate subsequent repair operations.
  • the cam locking device is remarkable in that the rod is a rod with adjustable length to apply a tensile force to the wire element from the head to the annular end, the rod has at least one proximal part and a distal part, the distal part being movably mounted relative to the proximal part to adjust the length of the rod, and in that at least one blocker is configured to block the rod at a desired length by blocking the position of the distal part relative to the proximal part.
  • the jammer only blocks the distal part relative to the proximal part without jamming the wire element.
  • the wire element is a textile wire element.
  • the wire element is a textile wire element defining a sewn ring and the distal end comprises a tubular element, the wire element passing through the tubular element, two ends of the ring being fixed to the head.
  • the wire element is attached to the head by an anchor, the anchor being arranged at a distance from the cams in an observation direction parallel to the pivot axis of the at least one pivot shaft, the anchor being disposed between the annular end and the at least one pivot shaft.
  • one of the proximal part and the distal part has a crenellated part and the other of the proximal part and the distal part has at least one tooth configured to insert into at least one slot of the slots of the crenellated part, the crenellations of the crenellated part being arranged consecutively along the first direction.
  • the proximal part extends from the head to a portion of the annular part, the blocker partially defining the through hole of the annular end.
  • the proximal part partially defines the through hole of the annular end.
  • the rod is a telescopic rod.
  • the proximal part defines a plurality of adjustment stops, the distal part being wedged against a stop of the plurality of adjustment stops.
  • the trigger faces said one stop of the plurality of adjustment stops.
  • the invention also relates to a method of installing a wire element which is easier to adjust than in the configurations of the prior art.
  • FIG. 13 illustrate different embodiments of a cam locking device also known under the name “cam lock”.
  • the cam lock is an active lock.
  • the cam locking device has a first end which is a head 1 and a second opposite end which is an annular end 2.
  • the annular end 2 is in the form of a ring which defines a through hole configured to receive a carabiner.
  • the cam(s) 3 are mounted movably around at least one pivot shaft 4.
  • the pivot shaft 4 is fixed to the head 1, more precisely the pivot shaft 4 is fixed to a body 1a of the head 1
  • the body 1a can be formed by one or more parts.
  • the cam locking device has a wire element 5 which mechanically connects the head 1 to the annular end 2.
  • the wire element 5 mechanically couples the cams 3 to the annular end 2 so that a user attached to the annular end 2 is retained by means of cams 3 stuck for example in a crack.
  • the wire element 5 is the element which ensures mechanical continuity between the head 1 and the annular end 2.
  • the cam(s) 3 are mechanically coupled to the annular end 2.
  • the wire element 5 extends along a first direction XX which connects the head 1 to the annular end 2 so as to achieve mechanical strength in this first direction XX.
  • the wire element 5 is attached to the head 1 and it extends continuously from the head 1 until reaching the annular end 2 to provide mechanical continuity along the blocking device.
  • the pivot shaft 4 extends mainly in a second direction YY which is perpendicular or substantially perpendicular to the first direction XX.
  • the cam(s) 3 are mounted to rotate around the second direction YY.
  • the head 1 has at least one anchor 6, for example an anchor shaft.
  • the wire element 5 is fixed to the anchor 6 so as to mechanically couple the wire element 5 and the head 1.
  • the wire element 5 defines at least one loop which is crossed by the anchor 6 in order to carry out the recovery of force with the annular end 2 when the cam locking device is placed under a tension force in the first longitudinal direction XX.
  • the wire element 5 is a textile material.
  • the textile material is a polyethylene of very high molar mass, for example in a material marketed under the names Dyneema ® or Spectra ® .
  • the wire element 5 is in the form of a ring. It is advantageous for the ring to be obtained by joining two endings of the wire element 5.
  • the two endings can be fixed to each other by a seam 5d as is illustrated in figure 2 , 3 , 4 , 6 , 7, 8 , 9 for a textile wire element. Sewing is a well-mastered process which makes it easier to obtain a ring whose mechanical resistance is controlled. The use of a sewing step makes it possible to form a ring which is less expensive and whose dimension is better controlled than its equivalent obtained by splicing. It is advantageous for the ring to be free of crimps and splices.
  • the wire element 5 can be a strap or a rope.
  • the blocking device comprises an actuation system coupled to the at least one cam 3.
  • the actuation system is configured to selectively engage the retracted position of the at least one cam 3.
  • the actuation system has a mounted trigger 7 sliding along the first direction XX connecting the head 1 and the annular end 2.
  • the trigger 7 is mounted movable relative to the head 1 and it is coupled to the at least one cam 3.
  • the trigger 7 is coupled to the at least one cam 3 so that the movement of the trigger 7 away from the head 1 causes a movement of the at least one cam 3 towards the retracted position, that is to say out of the extended position.
  • the trigger 7 is coupled to all the cams 3 so that the movement of the trigger 7 away from the head 1 causes a movement of the cams 3 towards the retracted position. Out of the first trigger position, the at least one cam 3 is out of the extended position.
  • the at least one cam 3 when the at least one cam 3 is in a retracted position, the at least one cam 3 does not prevent movement of the trigger 7 towards the head 1.
  • the trigger 7 is mounted to slide along the wire element 5 between the head 1 and the annular end 2.
  • the trigger 7 can be coupled to the cam 3 or to each cam 3 by a additional wire element 10.
  • the additional wire element 10 can be a metal cable, a textile element or a wire element made of synthetic material, for example plastic material.
  • the additional wire element 10 mechanically couples the cam 3 with the trigger 7 and makes it possible to transcribe a movement of the trigger 7 towards the second trigger position, that is to say transcribe a movement towards the annular end 2 into one movement of cam 3 towards the retracted position.
  • the movement of the at least one cam 3 from the retracted position to the extended position results in a movement of the trigger 7 out of the second trigger position.
  • the cam locking device has a spring 11 which is configured to bias the at least one cam 3 towards the extended position.
  • the spring 11 can be produced in any technology, it can be a helical spring operating in traction, compression, torsion or flexion. It can also be a blade or a metal wire that is elastically deformed. In the absence of stress and obstacle, the spring 11 places the cam(s) 3 in the extended position. The force applied to the trigger 7 to move away from the head 1 corresponds to a force applied to the spring 11 to move the cam(s) 3 out of the extended position.
  • the spring 11 is fixed on the one hand to the cam 3 and on the other hand to the head 1.
  • the spring 11 is fixed on the one hand to a first cam 3 and on the other hand to a second cam 3 mounted on another pivot shaft 4 than the first cam 3.
  • the blocking device can include as many springs 11 as cams 3 or as many springs 11 as pairs of cams 3.
  • the cam locking device comprises at least one rod 8 which extends in the first direction XX from the head 1 to the annular end 2.
  • the at least one rod 8 is fixed on the one hand to the head 1 and it partially or completely defines the annular end 2.
  • a first end of the rod 8 can abut against the head 1. The force applied by the element wire allows one end of the head of the rod 8 to be pressed against the head 1.
  • the cam locking device comprises a single rod 8 which extends longitudinally in the first direction XX.
  • the rod 8 is more rigid than the wire element 5 perpendicular to the direction XX which makes it possible to hold the cam locking device by means of the rod 8 and to precisely place the locking device in a crack in comparison with a equivalent device without the rod 8. It is advantageous that the trigger 7 is slidably mounted along the rod 8 and that the rod 8 separates the wire element 5 and the trigger 7. To protect the wire element, it is advantageous that the wire element 5 passes through the rod 8.
  • the rod 8 is used which then receives a compressive force in the first direction XX applied by the wire element.
  • the manufacturing of the wire element causes a disparity around a target length. The same goes for making the upper.
  • US10,143,892 proposes to use springs which will be constrained when fixing the wire element to the head, it is proposed to form a rod 8 in two parts with a blocker which fixes the length of the rod 8.
  • the rod 8 has a variable length.
  • the use of a variable length makes it possible to adjust the length of the rod 8 to the effective length of the wire element 5 between the head 1 and the annular end 2.
  • the adjustment of the length of the rod 8 can be continuous or in increments.
  • a blocker 12 makes it possible to fix the position of the second part 8b relative to the first part 8a.
  • the wire element 5 being more rigid than the rod 8 in the first direction XX, the wire element 5 will oppose the increase in the length of the rod 8 which will be constrained in compression.
  • the compression of the rod 8 will make it possible to have a more rigid rod 8 perpendicular to the first direction YY which improves the precise installation of the blocking device in the crack.
  • the length of the rod 8 can change which avoids constraining the wire element 5 or overly constraining the wire element. This makes it easier to fix the wire element 5 with the head 1.
  • the length of the rod 8 is fixed. The length of the rod 8 makes it possible to define the level of effort applied to the wire element 5.
  • the cam locking device comprises a device for adjusting the length of the rod 8 configured to separate the head 1 and the annular end 2 beyond at least a threshold distance and apply a force in traction on the wire element 5 in the first direction XX.
  • the rod 8 has a proximal part 8a abutting against the head 1 or fixed to the head.
  • the rod 8 also has a distal part 8b forming all or part of the annular end 2 and separated from the head 1 by the proximal part 8a.
  • the distal part 8b is mounted movable relative to the proximal part 8a to vary the length of the rod 8 and apply the tensile force on the wire element 5 in the first direction XX.
  • proximal part 8 and the distal part 8b comprise or consist of a tube which is crossed by the wire element 5.
  • the distal part 8b makes it possible to protect the wire element 5 against wear in all or part of the annular end 2.
  • the proximal part 8a defines at least one cavity intended to receive one end of the distal part 8b.
  • the end of the distal part 8b is fixedly mounted in the cavity.
  • the end of the distal part 8b can slide in the cavity.
  • the tubular part of the distal part 8b of the rod 8 is able to deform elastically perpendicular to the first direction XX in order to better adapt its shape to the shape of the wire element 5 under a tensile force.
  • the wire element 5 is in continuous contact with the tubular part of the distal part 8b so that the deformations applied in the annular end 2 are taken up by the wire element 5.
  • the tubular part of the distal part 8b applies a tensile force on the wire element 5 and a compressive force on the proximal part 8a.
  • the deformation of the distal part 8b increases the rigidity perpendicular to the first direction XX.
  • one of the proximal part 8a and the distal part 8b has a crenellated part 8c and the other of the proximal part 8a and the distal part 8b has at least one tooth configured to insert into at least one niche of the crenellations of the crenellated part 8c.
  • the slots are arranged consecutively along the first direction XX.
  • the cam locking device comprises a blocker 12 which is configured to block the position of the distal part 8b relative to the proximal part 8a.
  • the blocker 12 is mounted removable relative to the rod 8.
  • the blocker 12 may include a screw 9 or any other fixing means for fixing the blocker 12 to the rod 8.
  • the blocker 12 reduces the section available for sliding between the first part 8a and the second part 8b.
  • the position of the distal part 8b is fixed relative to the proximal part 8a.
  • the blocker 12 moves away which has the effect of increasing the available section and allowing the length of the rod 8 to be adjusted.
  • figures 3 and 4 show a blocker 12, one end of which is in the form of a wedge, the depth of insertion of the blocker 12 into the rod 8 defines the shrinkage value of the cavity intended to receive the end of the distal part 8b.
  • the blocker 12 wedges at least one end or both ends of the distal part 8b against the proximal part 8a as is illustrated in figures 3, 4 , 7, 8 , 10 And 13 .
  • the blocker 12 jams a single end of the distal part 8b, the other end abuts against the proximal part 8a.
  • the proximal end 8a defines two cavities intended to receive the two ends of the distal part 8b.
  • the blocker 12 blocks the position of the distal part 8b relative to the proximal part 8a.
  • the blocker 12 allows a movement of the position of the distal part 8b relative to the proximal part 8a in the first direction XX.
  • THE figures 1 to 4 illustrate an embodiment where the blocker 12 is fixed in a hole in the proximal part and reduces the section available for the distal part 8b.
  • the ends of the distal part 8b are deformed and wedged against the proximal part 8a which fixes the position of the distal part 8b relative to the proximal part 8a.
  • THE figures 5 to 8 illustrate an embodiment where the blocker 12 defines at least one tooth or a crenellated part 8c and the distal part defines a crenellated part or at least one tooth. Once the blocker 12 is fixed to the proximal part 8a, the crenellated part and the at least one tooth fix the position of the distal part 8b.
  • the blocker 12 defines a wall of the cavity intended to receive the end of the distal part 8b.
  • THE figures 9 to 11 illustrate another embodiment with a proximal part 8a which is a telescopic proximal part.
  • the blocker 12 attaches to the proximal end 8a and wedges the distal end 8b to fix the position of the distal end 8b.
  • the assembly in two parts of the proximal end 8a makes it possible to facilitate the assembly of the rod 8.
  • the proximal part 8a has a first portion 8d and a second portion 8e mounted movable relative to the first portion 8d in the first direction XX. In the position illustrated in Figure 9 , the proximal part 8a is in an extended position. In the position illustrated in Figure 10 , the proximal part 8a is in a retracted position.
  • the configuration of the proximal part 8a between the extended position and the retracted position is independent of the position of the at least one cam 3 and the position of the trigger 7.
  • the proximal part 8a may have its own blocker to freeze the position of the second portion 8 e relative to the position of the first portion 8d.
  • the first portion 8d and the second portion 8e define a set of grooves and teeth which only allow an extension of the length of the rod 8.
  • the distal part 8a and the proximal part 8b are mounted movable relative to each other to define several stable positions of the distal part 8b relative to the proximal part 8a.
  • the distal part 8a and the proximal part 8b define a tongue and groove device which makes it possible to define the length of the rod 8.
  • the rod 8 is represented in the form of a telescopic rod 8.
  • other embodiments are possible.
  • a cam locking device For the manufacture of a cam locking device, a cam locking device according to any of the preceding configurations is provided.
  • the rod 8 is lengthened so as to increase the distance between the head 1 and the annular end, which has the effect of applying a tension force on the wire element 5 and a compressive force on the rod 8.
  • the length is fixed of the rod 8 to the predefined length.
  • the length of the rod is blocked using blocker 12.
  • Such a configuration is particularly advantageous during a repair operation of the cam locking device. For example, if the rod 8 is damaged and must be changed, a variation in length between the initial rod and the new rod is easily compensated by adjusting the length of the rod to the length of the wire element.
  • This configuration is particularly advantageous, in a desire to replace the wire element 5 which ensures mechanical continuity between the head and the annular end.
  • the vagaries on the dimension of the head, on the length of the wire element as well as on the length of the rod 8 mean that a blocking device is never or almost never dismantled to replace the wire element 5.
  • a rod of variable length makes it possible to compensate for manufacturing hazards and thus to provide a new wire element 5 and preferably a replacement kit comprising a new wire element and a new rod.
  • a cam locking device comprising a head 1 connected to an annular end 2 by a wire element 5 and a rod 8. As indicated above, the head 1 is provided with at least one cam 3, of at least a pivot shaft 4, at least one spring 11 and a trigger 7 mechanically linked to the at least one cam 3.
  • the rod 8 and the wire element 5 are removed.
  • the new wire element 5 and the rod 8 are hooked together to the head 1, the rod being crossed by the wire element 5.
  • the rod 8 is lengthened so as to increase the distance between the head 1 and the annular end 2 which has the effect of applying a tension force on the wire element 5 and a compressive force on the rod 8.
  • the length of the rod 8 is fixed at the predefined length and we fix the desired length using the blocker 12. Take care to replace the rod 8 in the corresponding hole in the trigger 7.
  • the rod To facilitate the attachment of the wire element to the head, it is advantageous for the rod to be in the retracted position or in a space-saving position. Then, we extend the length of the rod 8 to put the rod 8 under compression.
  • the replacement of the wired element can be carried out with limited equipment, which makes it easier to carry out the replacement operation by dedicated operators or even by the user.
  • a trigger extender 7 can then be considered if the length of the rod 8 and the length of the wire element 5 are increased significantly.
  • THE figures 1 to 14 illustrate a rod 8 whose proximal end 8a inserts into the head 1, more preferably into the body 1a of the head so that the proximal end 8a abuts against one of the components of the head 1.
  • This embodiment is advantageous because it allows easy installation and disassembly of the proximal end.
  • the rod 8 can move in the first direction XX.
  • the proximal part 8a can be fixed directly to the head 1.
  • the cam locking device has four cams 3. It is possible to use more or fewer cams 3.
  • the configurations illustrated for the installation of the wire element 5 are applicable to locking devices. blocking which have one, two, three, four or more cams 3.
  • the number of cams 3 can be even or odd.
  • the cams 3 are preferably made of metallic material, for example aluminum alloy, or steel.
  • the rod 8 is preferably made of polymer material so as to be flexible in one or more directions perpendicular to the first direction XX.
  • the embodiments presented above are particularly advantageous for a wire element made of textile material whose duration is less than its metallic equivalent. Furthermore, the wire element ring 5 is manufactured in the factory with mastered sewing processes which ensures good mechanical strength of the wire element 5.
  • the wire element 5 is in the form of a ring, it is advantageous to shape the ring to form a “U”.
  • the figures illustrate a ring which is shaped, for example folded, in the form of a U with two legs 5a which each end in a loop 5b.
  • the connecting portion 5c is preferably a central portion.
  • the seam 5d is located in the central portion in order to limit the bulk in the head 1 or near the head 1.
  • the two legs 5a of the “U”-shaped wire element pass through the rod 8 to emerge into the head 1 facing the anchor 6 in a direction perpendicular to the direction XX, here in the direction YY but another configuration is possible.
  • each of the legs 5a is terminated by a loop 5b which is crossed by an anchoring shaft of the head 1.
  • the wire element 5 has a first loop 5b fixed to the head 1.
  • the first leg 5a extends from the head 1 to the annular end 2.
  • the element wire 5 extends along the annular end 2 and returns to the head 1 by means of the second leg 5a.
  • the application of a tensile force between the head 1 and the annular end 2 has the effect of putting the wire element 5 under tension.
  • there are four strands of the wire element which connect the head 1 to the annular end 2. More or fewer strands of wire elements are possible.
  • the connecting portion 5c extends along the annular end 2 while the two legs 5a each extend towards the head 1.
  • THE figures 1 to 13 illustrate embodiments in which the two loops 5b present at the two ends of the folded U-shaped ring are crossed by an anchoring shaft 6.
  • the anchoring shaft 6 is fixed to the body 1a of head 1 by screwing, by crimping, by riveting.
  • the anchor shaft 6 is mounted removable or non-removable from the rest of the head 1.
  • the two ends of the wire element 5 are inserted into the head 1.
  • the anchor shaft 6 passes through the two loops 5b and makes the two attachments of the wire element with the head 1.
  • the anchoring shaft 6 is fixed at its two ends with the body 1a.
  • an anchor shaft 6 removably mounted relative to the head 1 so as to have a wire element 5 which is easily replaceable. Dismantling the anchor shaft 6 makes it possible to remove the attachment between the wire element 5 and the head 1, which allows the wire element 5 to be replaced.
  • the anchoring shaft 6 may not be removable. By preventing the anchoring shaft 6 from being dismantled, safety is increased by preventing a cause of incorrect reassembly.
  • the two legs 5a enter the body 1a and go around the anchoring shaft 6.
  • the two legs 5a emerge from the head 1 towards the annular end 2 and the loops 5b at the ends of the two legs 5a are crossed by the annular end 2.
  • a lark's head is formed around the anchoring shaft 6 which fixes the wire element 1 with the head 1.
  • This embodiment can be complicated to be implemented if the space in the head 1 is limited to achieve the sliding of the wire element 5 and the bypass of the anchoring shaft 6.
  • the anchor 6 can be destructible relative to the head. The destruction of the anchor 6 makes it possible to eliminate the mechanical connection between the wire element and the head. This allows you to replace a wireframe element with another wireframe element.
  • the anchor In order to facilitate the replacement of the wire element and/or the rod, it is advantageous to install the anchor below the space occupied by the at least one pivot shaft and occupied by the at least one cam.
  • the anchor is not arranged opposite a pivot shaft and opposite at least one cam in an observation direction which is parallel to the pivot axis of at least one pivot shaft.
  • the anchor is arranged between the at least one cam and the annular end. Such an arrangement allows easier access to the anchoring, which allows separation between the head 1 and the wire element without having to dismantle one or more cams, or one or more pivot shafts.

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  • Pulmonology (AREA)
  • General Health & Medical Sciences (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Electric Cable Installation (AREA)
EP23216215.6A 2022-12-22 2023-12-13 Nockenverriegelungsvorrichtung und verfahren zum verstellen eines drahtelements einer nockenverriegelungsvorrichtung Pending EP4389244A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR2214247A FR3144014B1 (fr) 2022-12-22 2022-12-22 Dispositif de blocage à came et procédé de réglage d’un élément filaire d’un dispositif de blocage à came

Publications (1)

Publication Number Publication Date
EP4389244A1 true EP4389244A1 (de) 2024-06-26

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EP23216215.6A Pending EP4389244A1 (de) 2022-12-22 2023-12-13 Nockenverriegelungsvorrichtung und verfahren zum verstellen eines drahtelements einer nockenverriegelungsvorrichtung

Country Status (4)

Country Link
US (1) US20240207683A1 (de)
EP (1) EP4389244A1 (de)
CN (1) CN222218557U (de)
FR (1) FR3144014B1 (de)

Citations (14)

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US4184657A (en) 1977-06-04 1980-01-22 Jardine Raymond D Climbing aids
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GB2158540A (en) 1984-05-05 1985-11-13 Edelmann & Ridder Gmbh & Co Climbing device for mountaineers
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FR3144014B1 (fr) 2024-12-20
US20240207683A1 (en) 2024-06-27

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