FR2884429A1 - Cord locking and blocking device for e.g. mountaineering, has opening arm rotated between two positions by spring wire, where arm has operating opening for transversal passage of operating snap hook in free end zone of arm - Google Patents

Abstract

The device has a crossing passage (7, 8) defined by main braches (2) and lateral branches (5, 6). An operating arm (11) with a free end zone (11a) and an end (11b) is articulated on the branches (2), where the arm rotates between a position close to an edge (2c) of the branch and a rotated position spaced from the edge by a spring wire (12). The arm has an operating opening (11c) for a transversal passage of an operating snap hook in a free end zone.

Description

46571 OF P. doc

  The present invention relates to rope braking and locking devices for mountaineering, particularly for belaying a first or second rope, and for controlled descent along a single or double rope.

  Rope braking and blocking devices are known, for example, consisting of a molded or forged aluminum alloy eight-shaped slider, or platelets with one, two or more slits of oblong shapes. Some plates have a shackle-shaped retaining cable extending perpendicularly to the plane of the wafer. In case of fall of the climber, the blocking is done by effect of friction on the rope, causing a slowing of the fall of the climber.

  The document EP 1 221 327 describes an inserter-descender device for climbing or mountaineering comprising a metal body made by rigid assembly of several parts, the body having at least one slot for the passage of a loop of the rope, a first opening in the form of a loop for the passage of a first carabiner for traversing said loop of the rope, a second suspension opening for the passage of a second carabiner in the case of belaying the second rope, and abutment means offset transversely with respect to said openings for passage and locking of the rope.

  The manipulations of the various known braking and blocking devices are not always easy or effective during the progression of climbers in risky terrain.

  In particular, the device of the document EP 1 221 327 only allows a good locking if the ropes have a diameter at least greater than half the width of the slots. It is thus not usable for all the usual diameters of mountaineering rope, and more particularly for mountaineering ropes of small diameter, such as for example diameters from 7 mm to 5 mm.

  In addition, when belaying a first roped, it is difficult to circulate the rope through the inserter-descender device to give slack to the first roped upward.

  In such a known device, any improvement in rope braking ability is to the detriment of the movement of the rope when you want to give slack, and vice versa.

  Finally, after blocking by the insurer-descender device of a second roped to stop his fall, it is impossible to give slack to the second roped, for example to descend slowly to a point 4657PDIP.duc d support, if the tension of its rope connecting it to the insurer-descending device can not be suppressed. This can prove to be restrictive, for example in the case where the second of rope has made a fall and that this one is stopped under an overhang. Indeed, once the second rope blocked in this way, it is impossible to cancel the tension on the rope connecting it to the insurer device ofcendeur, and it is therefore impossible to provide slack to ensure a controlled descent of the to get it out of the delicate position it occupies.

  A first problem proposed by the present invention is to design a rope braking and locking device which easily ensures the following two functions which are a priori contradictory: effective braking and blocking of the rope in case of a fall, a satisfactory sliding rope to give slack when belaying a first roped.

  A second problem is to allow the voluntary and controlled release of the rope after a fall when belaying a second roped.

  To achieve these and other objects, the invention provides a rope braking and locking device for mountaineering comprising: a main branch elongate in a longitudinal direction, bounded by a first end, a second end, a first edge main branch and a second main branch edge, - at least one side branch elongate in the longitudinal direction, bounded by a first side branch edge and a second side branch edge, joining the main branch on the one hand to / in the vicinity of its first end in a first junction zone and secondly in a second junction zone set back from its second end, while leaving a section of a second main branch end, at least one longitudinally elongated through passage, defined by the main and lateral branches between their two junction zones, and dimensioned for the passage of a loop e of rope, - a suspension light, shaped for the passage of a suspension carabiner, and made in the section of second main branch end, further comprising: - an operating arm having a free end and an articulated end on the main branch, pivoting between at least one position close to the first main branch edge and a position pivoted away from the first main branch edge, 46571.DI P.doc - a maneuvering light provided in the main arm maneuver and shaped for the transverse passage of a carabiner maneuvering in its free end zone.

  This provides a braking device and rope lock for mountaineering, for belaying a first or second rope, which allows a good rope lock if necessary.

  This braking device and rope lock also allows easier use in rough terrain, and greater safety for users, facilitating, by pivoting the operating arm to its pivoted position, the movement of the rope through the device Braking and locking rope to give slack when no tension needs to be exerted on the strands of the rope.

  In fact, in the absence of tension on the rope, in the belay position of the rope leader, the rope braking and locking device tends, under the effect of its own weight, to open by relative pivoting. from the operating arm and the body at least to the rotated position of the operating arm. The rope then forms a loop large enough to allow its good circulation in the braking device.

  The rope braking and locking device according to the invention is also usable for controlled descent abseiling along a single or double rope.

  Preferably, the device further comprises an elastic means for pivotally returning the operating arm to its pivoted position. In this way, it automatically facilitates the movement of the rope through the braking device and rope lock to give slack.

  The elastic means may be a U-shaped spring wire whose ends are engaged in holes of the operating arm and having a central portion bent, sliding against the first edge of the main arm. Such a structure is particularly robust, efficient and inexpensive.

  Thanks to the elastic means, the operating arm is driven in a pivoted position away from the first main branch edge by the U shaped spring wire, thereby driving the carabiner maneuver in which is passed the loop of rope . Thus, in the absence of tensions exerted voluntarily by the user on the rope, the operating arm tends to widen the loop of rope passing through the passage between the main and lateral branches, facilitating the movement of the rope through the device braking and locking rope, especially for the movement of slack. The movement of the slack of the rope through the rope braking and blocking device is essential to allow the rope leader, for example, to ascend without being held down by the rope that connects it to the device. braking and rope locking.

  Advantageously, the first edge of the lateral and main branches may comprise a concave profile.

  According to the invention, the first junction zone may be V-shaped with its opening oriented towards the second edge of the main branch.

  Such V-shape improves the locking of ropes of any diameter, including those of small diameter.

  According to the invention, the operating arm can preferably be articulated in the second end zone of the main branch.

  Advantageously, the operating arm can be crimped and articulated around the suspension light of the main branch.

  Preferably, the operating arm can be pivoted beyond the rotated position to abut in a release position in which it protrudes from the second edge of the main branch.

  In the context of belaying a second roped, the operating arm is thus usable as a lever arm to cause the rotation of the braking device and rope lock around its suspension light in a direction causing a reduction of the braking force of the rope, allowing the voluntary unblocking under tension of the rope, to give slack to the second rope after it is blocked due to a fall.

  According to the invention, the maneuvering arm may have a length less than the length of an interior mountaineer carabiner space, to allow it to pivot between the pivoted position and the unlocking position by passing through the interior space of the carabiner. suspension.

  Thus, during the belay of the second roped, it is not useful that the maneuvering arm is deployed, it may conflict with the wall or with climbing ropes. It will nevertheless still be possible, in the case of a blocking of the second rope due to a fall, to deploy the maneuvering arm without having to unhook the braking device and blocking or perform any dangerous maneuver that may endanger the users.

  Preferably, the operating light of the operating arm for the passage of a carabiner maneuver can be an elongated light along the length of the operating arm.

  Such an elongated shape for the operating light allows the free movement and orientation of the carabiner maneuvering when the user circulates the rope through the braking device and rope lock. In addition, in the context of belaying a second rope, such a shape allows to bring a release carabiner in the vicinity of the free end of the operating arm. Thus, the user can, by traction exerted by means of the unlocking carabiner on the actuating arm, to communicate a maximum torque to cause the rotation of the braking device and rope lock around its suspension light.

  Advantageously, the operating arm and the operating light widens towards the free end of the operating arm. Thus, the maneuvering arm once deployed has in the vicinity of its free end a stable position for the positioning of the unlocking carabiner which will allow the user to apply a torque of maximum intensity to cause the rotation of the braking device and rope lock around its suspension light.

  Other objects, features and advantages of the present invention will emerge from the following description of particular embodiments, made with reference to the appended figures, in which: FIG. 1 is a perspective view of a braking device and rope lock according to one embodiment of the invention; Figure 2 is a bottom view of the braking device and rope lock of Figure 1, showing the first junction zone of the side branches and main V-shaped; FIG. 3 is a perspective view of the rope braking and blocking device of FIG. 1 used in the context of belaying a rope leader; - Figure 4 is a sectional view of the braking device and rope lock of Figure 3; FIG. 5 is a perspective view of a rope braking and blocking device of FIG. 3 after the fall of a rope leader in the course of belaying a first rope; - Figure 6 is a sectional view of the braking device and rope lock of Figure 5; - Figure 7 is a perspective view of the braking device and rope lock of Figure 1 used to ensure a second rope, with the operating arm in the unlocking position; and FIG. 8 is a perspective view of the rope braking and locking device of FIG. 7 where slackness is given to a second rope member who has been stuck in his fall.

  In Figure 1 is shown a device 1 for braking and locking rope according to one embodiment of the invention. This comprises a main branch 2 elongated in a longitudinal direction 1-I, bounded by a first end 2a, a second end 2b, a first main branch edge 2c and a second main branch edge 2d. The device 1 also comprises two lateral branches 3 and 4, elongate in the longitudinal direction 1-1, and arranged systematically on either side of the main branch 2. The side branch 3 is bounded by a first edge 3c of lateral branch and a second edge 3d of lateral branch, joining the main branch 2 on the one hand in the vicinity of its first end 2a in a first junction zone 5 and secondly in a second junction zone 6 set back from its second end 2b, leaving behind a section of second end 2b of main branch 2. Two longitudinally extending passages 7 and 8 longitudinally are defined on either side of the main branch 2 by the lateral branches 3 and 4 between their two zones junction 5 and 6, and are sized for the passage of rope loops. The section of second end 2b of main branch 2 is provided with a suspension light 9 shaped for the passage of a suspension carabiner 10 (Figures 7 and 8).

  The device 1 braking and locking rope according to the invention further comprises an operating arm 11 having a free end 11a and an end 11b hinged to the main branch 2, pivoting in the general plane of the main branch 2 between at least one position close to the first main branch edge 2c and a position pivoted away from the first main branch edge 2c. In the illustrated embodiment, an elastic means pivots the operating arm 11 towards its pivoted position. . The resilient means is a U-shaped spring wire 12 whose ends 12a and 12b are engaged in holes 13a and 13b of the operating arm 11 and having a central portion 12c folded in sliding abutment against the first edge 2c of the main branch 2 .

  The operating arm 11 comprises an operating light 11c shaped for the transverse passage of an actuating carabiner 15 (FIGS. 3-8) in its free end zone 11a.

  The first edges 2c, 3c and 4c of the main and lateral branches 3 and 4 have a concave profile.

  4657PDF.P.doc The operating arm 11 is crimped and articulated around the suspension light 9 of the main branch 2, that is to say in the second end zone 2b of the main branch 2.

  FIG. 2 is a view from below of the first junction zone 5 of the lateral branches 3 and 4 with the main branch 2. For each lateral branch 3 or 4, this first junction zone 5 forms a groove 5a or 5b with section V having its opening oriented towards the second edge 2d of the main branch 2, respectively limited by the central branch 2 and the second edge 3d or 4d respectively of the side branch 3 or 4.

  The operating arm 11, articulated around the suspension light 9 of the main branch, is rotatable about the axis II-II in a plane comprising the main branch 2.

  The groove 5a V of the first junction zone 5 allows effective and safe blocking of all mountaineering ropes regardless of their diameter.

  Figures 3, 4, 5 and 6 illustrate the use of the device 1 for braking and locking rope according to the invention in the context of the belay of a leader rope. The first rope is here assured with a rope 14 taken double, formed of two parallel strands. Each strand of the double rope 14 is passed through the device 1 braking and locking rope forming a respective loop 16 or 16a. The first roped climbs and is assured by the second roped who is below.

  From the second edge 2d, the first loop 16 of the rope 14 passes through the device 1 braking and locking rope by the first passage 7 defined between the main branch 2 and the first lateral branch 3. Similarly, since the second edge 2d , the second loop 16a of the rope 14 passes through the device 1 braking and locking rope through the second passage 8 defined between the main branch 2 and the second lateral branch 4.

  The carabiner maneuver 15 passes inside the loops 16 and 16a to prevent the loops 16 and 16a out of the device 1 braking and locking rope to the second edge 2d. The carabiner 15 further passes between the loops 16 and 16a, through the operating light 11 c of the actuating arm 11. The end 15a of the carabiner maneuver is attached to the shoulder of the second roped.

  The rope 14 continues, on either side of the device 1 braking and locking rope, according to a first section 14a and a second section 14b. The first section 14a extends from the device 1 for braking and locking rope 4 (57PU1.P.doc to the first rope, and the second section 14b extends from the device 1 braking and locking rope to the free end of the rope 14.

  The device 1 braking and locking rope shown in Figure 3 is illustrated in section in Figure 4, in the same arrangement.

  During the ascent of the rope leader, the rope 14 must circulate in the direction defined by the arrow 17 through the device 1 so as not to prevent the progression of the rope first away from the second rope. In practice, the second rope helps the movement of the rope 14 through the device 1 braking and locking rope by exerting a slight traction on the first section 14a in the direction defined by the arrow 17 and pushing the second section 14b in the direction defined by the arrow 18. The flow of the rope 14 through the device 1 braking and locking rope is all the easier as the loops 16 and 16a are large. Indeed, mountaineering ropes such as rope 14 have a certain stiffness, stiffness which, in the case of a loop 16 of very small dimension, would harm the good circulation of the rope 14.

  It is therefore advantageous, to allow a good voluntary flow of the rope 14, loops 16 and 16a of the rope 14 are permanently maintained large. In the absence of tension on the rope 14, the device 1 tends to open by pivoting the operating arm to or beyond its pivoted position. Indeed, the carabiner maneuvering generally attached to the shoulder of the second roped is pulled away from the device body consisting of the main branches 2 and side 3 and 4, while the body is pulled away from the carabiner maneuvering by its own weight. Large loops 16 and 16a are thus obtained. In the case where the device comprises the spring wire 12, the latter moves the actuating arm 11 from the first edge 2c of the main branch to a pivoted position. The operating arm 11, pivoting, drives the carabiner maneuver 15, which itself leads the rope 14 and more particularly the loops 16 and 16a whose size is growing. It is thus ensured in a simple and even more certain manner that the loops 16 and 16a have a sufficiently large dimension so that the rope 14 can circulate without difficulty through the device 1 braking and locking rope.

  In FIG. 5, the leader of the rope has made a fall, causing by its weight a traction exerted on the first section 14a of the rope 14 and directed along the arrow 19. Simultaneously, the second of the rope holds the second rope section 14b to oppose his scrolling towards the first roped. This results in the rope 14 a tension which drives the carabiner 4657FDITMOD.doc 2884429 maneuver 15 to the first edges 2c, 3c and 4c of the main branches 2 and side 3 and 4. The carabiner maneuver 15 simultaneously drives the maneuvering arm 11 which rotates about the axis II-II against the return torque exerted by the spring wire 12, to come into contact with the first edge 2c of the main branch 2. These movements cause a reduction of the size of the loops 16 and 16a.

  The small size of the loops 16 and 16a and the stiffness of the rope 14 then oppose a good circulation of the rope 14 through the device 1 braking and locking rope.

  The size of the loops 16 and 16a can be made even lower when the first edges 2c, 3c and 4c have a concave profile as illustrated in the figures. This results in better rope braking 14 through the device 1 braking and locking rope.

  This phenomenon of braking and blocking is also observed in FIG. 6, which shows in section the rope braking and braking device 1 of FIG. 5.

  It can be seen in FIG. 6 that the loop 16 has considerably diminished in size and has driven the carabiner 15 against the operating light edge 21 11c, the carabiner 15 then driving the operating arm 11 in turn. rotation along the axis II-II to come into contact with the main branch 2 according to its first edge 2c.

  The small size of the loop 16 and the stiffness of the rope 14 contribute to braking the fall of the rope leader. To better stop this fall, the second roped can move the second section 14b by applying a rotation along the axis IV-IV in the direction defined by the arrow 20. The rope 14 is then engaged deeply in the groove 5b in V of the first junction zone 5.

  When this first junction zone is shaped in V, as illustrated in the figures, effective braking is assured regardless of the diameter of the rope 14. The fall of the leader is thus stopped safely and effectively, whatever the diameter of the rope 14.

  In Figures 3 to 6, the device is used with a rope 14 taken double, comprising two parallel strands. The same device can, however, be used with a single-handed rope, comprising a single strand that forms a single branch 16 passed in the device 1 braking and locking rope.

  The device 1 for braking and locking rope according to the invention can also be used for a controlled descent abseiling along a single or double rope. The use of the device 1 braking and locking rope is then little different from the use shown in Figures 3 to 6.

  For a controlled descent abseiling along a single or double rope, the first rope section 14a is fixed at a stopping point, and the end 15a of the maneuvering carabiner 15 is fixed to the mountaineer's shoulder belt. abseil. To control the braking force during the downward movement, it suffices to hold more or less vigorously the second section 14b of the rope 14 and / or to rotate it as illustrated by the arrow 20 to force it to penetrate more or less into 5b V groove of the first junction zone 5. The person rappelling therefore uses his hands in a conventional manner as is usually done with single descenders. The device 1 braking and locking rope according to the invention has a great advantage, however, by its first junction zone 5 forming a groove 5b V, which allows safe and effective blocking of the descent, and this for all diameters rope used.

  Figures 7 and 8 illustrate the use of a device 1 for braking and locking rope according to the invention in the context of belaying a second rope. The belay of a roped can also be done with a rope taken single or double grip.

  In such a use, a suspension carabiner 10 is fixed to an attachment point, for example on the wall to be climbed, and passes into the suspension light 9. The carabiner 15 passes through the loops 16 and 16a of the rope 14 without passing through the operating light 11 c of the operating arm 11. The first rope section 14a extends from the device 1 braking and locking rope fixed to the wall with the carabiner suspension 10, to the harness of the second roped where it is fixed. The second section 14b extends from the device 1 braking and locking rope to the free end of the rope 14.

  During a normal progression of the second roped, the first strung circulates the rope 14 through the device 1 braking and locking rope pulling jointly on the sections 14a and 14b of the rope 14 in the directions indicated by the arrows 22 and 23.

  During a fall of the second roped, the weight of the roped second causes traction of the first section 14a in the opposite direction to the direction defined by the arrow 22. The traction exerted on the first section 14a then tends, in the part 141a of the first section 14a adjacent to the groove 5b V of the first junction zone 5, to compress the portion 141b of the second section 14b 46571'DEPMOD.doc 2884429 in said groove 5b V of the first junction zone 5. Thus the first section 14a compressing the second section 14b in the groove 5b V of the junction zone 5 stops the fall of the second rope, since the second section 14b compressed in the groove 5b V of the first junction zone 5 can not flow freely in the opposite direction to that defined by the arrow 23.

  Once the fall of the second roped blocked, it is possible that it needs slack to resume a fulcrum and continue his ascent. For example, if the leader of the rope is stopped in his fall below an overhang, it is necessary to give him slack in a controlled way so that it descends until contact is made with the wall.

  To give this slack to the second roped once blocked, and allow him to resume his ascent, the maneuvering arm 11 can be pivoted about the axis II-II beyond the rotated position, as illustrated by the arrow 25a in FIG. 7, until it comes to a stop in an unlocking position in which it protrudes from the second edge 2d of the main branch 2 as represented in FIG. 7.

  To come in this position shown in Figure 7, the actuating arm 11 has a length I less than the length L of the interior of the suspension carabiner 10, which allows its pivoting 25a about the axis II-II between the rotated position (FIG. 1) and the unlocking position (FIG. 7) while passing through the interior space of the suspension carabiner 10.

  In the illustrated embodiment, the operating light 11c of the operating arm 11 is an elongated slot along the length I of the operating arm 11. The operating arm 11 and its operating light 11c widen towards the free end 11a of the operating arm 11. It is thus possible to pass an unlocking carabiner (not shown in Figure 7) in the operating light 11c and position it in a stable equilibrium position in the vicinity of the end 11a of the operating arm 11.

  It will then be possible, with or without unlocking carabiner, to apply a force to the operating arm 11 in the direction defined by the arrow 24, which has the effect of causing a pivoting of the device 1 for braking and locking the rope around the wheel. II-II axis, in the direction illustrated by the same arrow 25a. With the unlocking carabiner located at the end 11a of the operating arm 11, the length I thereof is fully exploited to communicate a maximum intensity torque to cause the pivoting device 1 to brake and lock around the rope. axis II-II.

  FIG. 8 shows the device 1 for braking and locking a rope in a position pivoted about the axis IIII by the application of traction on the operating arm 11 in the direction defined by FIG. arrow 24. It is observed in this figure 8 that the portion 141a of the first rope section 14a no longer compresses the portion 141b of the second rope section 14b in the first junction zone 5 in the form of a 5b V-shaped groove. The second section 14b can then flow in the direction defined by the arrow 26 which has the effect of allowing the circulation of the first section 14a in the direction defined by the arrow 27. It is thus possible to give slack in a controlled manner to the second roped which was previously blocked after falling. The control is effected by maneuvering the operating arm 11 to modulate the pivoting of the device 1 braking and locking rope, and holding more or less firm second rope section 14b.

  The second roped will be able to resume contact with the wall and continue his ascent. The operating arm 11 can then be re-rotated by passing through the interior of the suspension carabiner 10 in the direction defined by the arrow 25b. Thus, the device 1 for braking and locking rope has a smaller footprint, which avoids any conflict of the operating arm 11 with the wall or with the rope 14.

  In the mode of use of FIGS. 7 and 8, in the context of belaying a roped second with a single-handed rope 14, it is possible, with a single device 1, to ensure the progression of two seconds of strings simultaneously. Indeed, each second will have a single-handed rope each passing respectively through one of the passages 7 or 8 of the device 1.

  This can be particularly useful, particularly in the context of the simultaneous escalation by two seconds of rope of the same wall in two substantially parallel tracks, or in the same way.

  In the embodiment shown in the figures, the device 1 for braking and locking rope comprises two lateral branches 3 and 4, on either side of the main branch 2.

  In a simplified version of the invention, a device 1 having a single lateral branch and a main branch may be provided. This simplified version still allows the uses described in the figures, with a single rope that is to say a single strand.

  The present invention is not limited to the embodiments which have been explicitly described, but it includes the various variants and generalizations thereof within the scope of the claims below.

46571'1) F Duke

Claims (8)

  1 device (1) for braking and locking rope for mountaineering, comprising - a main branch (2) elongated in a longitudinal direction (I-1), bounded by a first end (2a), a second end (2b) , a first main branch edge (2c) and a second main branch edge (2d), - at least one longitudinal branch (3, 4) elongated in the longitudinal direction (1-I), bounded by a first edge (3c , 4c) of lateral branch and a second lateral branch edge (3d, 4d), joining the main branch (2) on the one hand at / near its first end (2a) in a first junction zone (5) and secondly in a second junction zone (6) set back from its second end (2b), leaving behind a second end section (2b) of main branch (2) - at least one passage (7, 8 ) extending longitudinally, defined by the principal (2) and lateral (3, 4) branches between their two zones 5, 6), and dimensioned for the passage of a rope loop (16, 16a), - a suspension light (9), shaped for the passage of a suspension carabiner (10), and made in the second end section (2b) of main branch (2), characterized in that it further comprises: - an operating arm (11) having a free end (11 a) and an end (11 b) articulated on the main branch (2), pivoting between at least one position close to the first main branch edge (2c) (2) and a position pivoted away from the first main branch edge (2c) (2), - a light operating member (11c) provided in the operating arm (11) and shaped for the transverse passage of an operating carabiner (15) in its free end zone (11 a).   2 Device (1) according to claim 1, characterized in that it comprises an elastic means (12) for pivotally returning the actuating arm (11) to its pivoted position.   3 Device (1) according to claim 2, characterized in that the elastic means is a U-shaped spring wire (12) whose ends (12a, 12b) are engaged in holes (13a, 13b) of the operating arm ( 11) and having a central portion (12c) folded, sliding against the first edge (2c) of the main branch (2).   4657FDEP.dac 4 Device (1) according to any one of claims 1 to 3, characterized in that the first edge (2c, 3c, 4c) of the side branches (3, 4) and main (2) has a concave profile .     Device (1) according to any one of claims 1 to 4, characterized in that the first junction zone (5) forms a V-shaped groove (5a, 5b) with its opening oriented towards the second edge (2d) of the main branch (2).   6 Device (1) according to any one of claims 1 to 5, characterized in that the operating arm (11) is articulated in the region of the second end (2b) of the main branch (2).   7 Device (1) according to claim 6, characterized in that the operating arm (11) is crimped and articulated around the suspension light (9) of the main branch (2).   8 Device (1) according to one of claims 6 or 7, characterized in that the actuating arm (11) can be pivoted beyond the rotated position to abut in a release position in which it protrudes from the second edge (2d) of the main branch (2).   9 Device (1) according to any one of claims 6 to 8, characterized in that the actuating arm (11) has a length (I) less than the length (L) of an interior mountaineering carabiner space , to allow its pivoting between the rotated position and the unlocking position by passing through the interior space of the suspension carabiner (10).     Device (1) according to any one of claims 1 to 9, characterized in that the operating light (11c) of the operating arm (11) is an elongated slot along the length of the operating arm (11).   11 Device (1) according to claim 10, characterized in that the operating arm (11) and the operating light (11c) widens towards the free end (11 a) of the operating arm (11) .