ADJUSTMENT DEVICE FOR A WIRED ELEMENT AND ROPE HARNESS EQUIPPED WITH SUCH AN ADJUSTMENT DEVICE

Abstract

WIRE ELEMENT ADJUSTMENT DEVICE AND ROPE HARNESS EQUIPPED WITH SUCH AN ADJUSTMENT DEVICE. An adjustment device (1) for the length of a wire element (2) comprises a wire element (2), a body (4), and a locking element (5) movably mounted between a locking position and an unlocking position of the wire element (2). The body defines a first slot (9) and a second slot (10) for the passage of the wire element (2). The slots are separated by the support wall (7). The locking element (5) is movable and pivotally mounted relative to the body (4) around a pivot shaft (11) to move closer to or further from the support wall (7). The locking element (5) has a support wall (12) that moves closer to or further from the support wall (7). The two strands passing through a second slot (10) are separated by a support wall (12) and join together by going around the pivot axis of the support wall (12) formed by the body (4).

Description

Title of the invention: ADJUSTMENT DEVICE FOR A WIRED ELEMENT AND ROPE HARNESS EQUIPPED WITH SUCH AN ADJUSTMENT DEVICE technical field

[0001] The invention relates to a device for adjusting a wire element and to a rope harness equipped with such an adjustment device. Previous technique

[0002] To adjust the length of a strap and, more generally, of a wire element, it is common to use an adjustment buckle. Over the years, many different configurations of adjustment buckles have been developed.

[0003] Conventionally, the adjustment buckle has two rings of substantially rectangular shape, one above the other, and of different sizes. The smaller ring moves relative to the larger ring to clamp the thicknesses of the straps and thus secure the chosen length.

[0004] This solution provides good results with regard to maintaining the chosen length, even when the tensile forces applied to the strap increase. By moving the two rings relative to each other, it is easy to loosen the buckle and adjust the setting. However, it is observed that this configuration also results in a significant decrease in the strap's mechanical performance.

[0005] While the strap is measured to provide an initial breaking strength value when used alone and stretched along its longitudinal direction, it is observed that adding an adjustment loop results in a reduction by a factor of two or three when the assembly is subjected to the same longitudinal force. Failure occurs at much lower values ​​and does not originate from the failure of the adjustment loop. In order to withstand the expected forces, the solution is to replace the strap with a thicker and / or wider one.

[0006] This technical choice is not satisfactory because increasing the section of the strap leads to a degradation of the overall ergonomics. Object of the invention

[0007] An object of the invention consists of providing an adjustment device which ensures good maintenance of the chosen length, which provides an improvement in resistance to breakage compared to prior art configurations which use equivalent wire elements while being simple to use and in particular easy to adjust.

[0008] This result is tended to be achieved by means of an adjustment device configured to adjust a wire element length comprising: - a wired element; - a body having at least a first wall, a support wall and a second wall arranged to define at least a first slot and a second slot intended for the passage of strands of the wire element, the first slot being delimited at least by the first wall, the second slot being delimited at least by the second wall, the second slot being distinct and separated from the first slot by the support wall; - a locking element mounted movably between a locking position and an unlocking position, the locking element being fixed to the body and mounted movably to pivot relative to the body around a pivot shaft to move closer to or further from the support wall, the pivot shaft being arranged closer to the first wall than to the second wall and closer to the first wall than to the support wall along a first direction which passes successively through the first wall, the support wall and the second wall; in which the blocking element has a support wall approaching or moving away from the bearing wall; in which a first strand of the wire element passes through the second slot and extends along a first face of the support wall to bypass the first wall; in which a second strand of the wire element passes through the second slot and extends along a second face of the support wall and passes through the first slot to bypass the first wall and continue as the first strand: in which, in the locked position, the first strand applies a force to the support wall in the direction of the bearing wall, and the second strand is wedged between the support wall and the bearing wall; and in which, in the unlocking position, the support wall defines a functional clearance with the bearing wall to allow the second strand to slide.

[0009] According to one aspect of the invention, the second face of the support wall is provided with studs intended to be inserted into the wire element.

[0010] Advantageously, the blocking element defines a through hole for the passage of the support wall, a height of the support wall being less than a height of the through hole along the pivoting direction of the blocking element so as to constrain the pivoting of the blocking element to a predefined angular range.

[0011] In a particular configuration, the first direction of the body is curved.

[0012] In an advantageous development, the handle is pivotally mounted around a second pivot shaft extending parallel to the first pivot shaft.

[0013] Preferably, the blocking element is pivotally mounted around the first wall.

[0014] According to one embodiment, the support wall is devoid of a sharp edge in a contact area with the wire element.

[0015] In an advantageous development, the blocking element is devoid of a sharp edge in a contact zone with the wire element.

[0016] Preferably, the support wall has a circular cross-section and / or the blocking element defines a bypass zone by the wire element whose external face is a portion of a circular arc.

[0017] In another advantageous development, the body is pivotally mounted about a support around an additional pivoting shaft.

[0018] Preferably, the second wall forms the additional pivoting shaft.

[0019] It is advantageous to provide that the body defines a hook ring distinct from the first slot and the second slot.

[0020] Preferably, the blocking element is formed by an internal part and an external part each mounted pivotally around the first wall, the external part being mounted movable relative to the internal part with limited functional play, the internal part and the external part being separated by the support wall.

[0021] The invention also relates to a rope harness which has an adjustable lanyard whose length is well maintained following a tensile stress, whose tensile strength is better than prior art configurations for a predefined wire element and which remains easy to adjust.

[0022] Advantageously, the rope harness includes a device for adjusting a wire element according to any of the preceding configurations in which the support is a strap attached to the belt or to one of the thigh loops.

[0023] Preferably, the wire element connects the belt with a connector linked to a movable anchor point.

[0024] More preferably, the lanyard harness includes a second adjustment device configured to adjust the length of a second wire element according to any one of the preceding configurations in which the adjustment device is attached to the abdominal belt on one side, right or left, with respect to a median sagittal plane, and the second adjustment device is attached to the abdominal belt on the other side, right or left, the second wire element connecting the belt to a second connector linked to the movable anchor point Brief description of the drawings

[0025] Other advantages and features will become clearer from the following description of particular embodiments and implementations of the invention given by way of non-limiting examples and shown in the accompanying drawings, in which:

[0026] [Fig-1] schematically illustrates a perspective view of a lanyard equipped with a first embodiment of an adjustment device in a locking position;

[0027] [Fig.2] schematically illustrates a cross-sectional view of a lanyard equipped with a first embodiment of an adjustment device in a locking position;

[0028] [Fig.3] schematically illustrates a perspective view of a lanyard equipped with a second embodiment of an adjustment device in an unlocking position;

[0029] [Fig.4] schematically illustrates a cross-sectional view of a lanyard equipped with the second method of implementing an adjustment device in an unlocked position;

[0030] [Fig.5] schematically illustrates a perspective view of a lanyard equipped with the second embodiment of an adjustment device in a locking position;

[0031] [Fig.6] schematically illustrates a cross-sectional view of a lanyard equipped with the second embodiment of an adjustment device in a locking position;

[0032] [Fig.7] schematically illustrates a perspective view of a lanyard equipped with a third embodiment of an adjustment device in an unlocking position;

[0033] [Fig.8] schematically illustrates a cross-sectional view of a lanyard equipped with the third embodiment of an adjustment device in an unlocking position;

[0034] [Fig.9] schematically illustrates a perspective view of a lanyard equipped with the third embodiment of an adjustment device in a locking position;

[0035] [Fig. 10] schematically illustrates a cross-sectional view of a lanyard equipped with the third embodiment of an adjustment device in a locking position;

[0036] [Fig. 11] schematically illustrates a perspective view of a rope harness equipped with two lanyards attached to a belt;

[0037] [Fig. 12] schematically illustrates a perspective view of a body according to the first embodiment of the adjustment device;

[0038] [Fig. 13] schematically illustrates a perspective view of a body according to the second embodiment of the adjustment device;

[0039] [Fig. 14] schematically illustrates a perspective view of a blocking element;

[0040] [Fig. 15] schematically illustrates another embodiment of a device adjustment;

[0041] [Fig. 16] schematically illustrates an internal part of a blocking element;

[0042] [Fig. 17] schematically illustrates a top view of an external part of a blocking element;

[0043] [Fig. 18] schematically illustrates a bottom view of an external part of a blocking element;

[0044] [Fig. 19] schematically illustrates an internal part of a blocking element installed on a body;

[0045] [Fig.20] schematically illustrates an internal part and an external part of a blocking element installed on a body;

[0046] [Fig.21] schematically illustrates a cross-sectional view of a blocking element equipped of an external part and an internal part mounted on a body. Description of the implementation methods

[0047] Figures 1 to 11 illustrate different embodiments of lanyards equipped with an adjustment device 1 configured to adjust the length of a wire element 2 and of a rope harness 3 equipped with such lanyards with such an adjustment device 1.

[0048] The adjustment device 1 comprises a body 4 and a locking element 5. The locking element 5 is fixed to the body 4 and is mounted movable relative to the body 4.

[0049] The body 4 is an openwork element intended to be traversed by the wire element 2. The body 4 has at least a first wall 6, a support wall 7 and a second wall 8 to define at least a first slot 9 and a second slot 10 intended for the passage of the wire element 2. The first slot 9 is delimited in part by the first wall 6. The second slot 10 is delimited in part by the second wall 8. The second slot 10 is distinct from and separated from the first slot 9 by the support wall 7.

[0050] Figures 12 and 13 illustrate two embodiments of a body 4. In the embodiment illustrated in [Fig. 12], the body 4 delimits only the first slot 9 and the second slot 10. The body 4 is in the form of a ring whose bearing wall divides the central hole into the first slot 9 and the second slot 10. In the embodiment illustrated in [Fig. 13], the body defines an additional through hole in addition to the first slot 9 and the second slot 10. It is possible to have a body that delimits more slots or through holes.

[0051] Preferably, the first slot 9 is delimited by the first wall 6 and the support wall 7, and the second slot 10 is delimited by the second wall 8 and the support wall 7, as illustrated in Figures 1 to 13. To allow easy adjustment of the length of the wire element 2, it is advantageous for the width and height of each of the first slot 9 and the second slot 10 to be greater than the width and thickness of the wire element 2. The first slot 9 and / or the second Slot 10 may have a rectangular section when the wire element 2 is a strap or any other element having a width significantly greater than the thickness.

[0052] The adjustment device has a locking element 5 which is movably mounted between a locked position and an unlocked position. The locking element 5 is movably pivotally mounted relative to the body 4 around a pivot shaft 11 to move closer to or further from the support wall 7. The pivot shaft 11 is positioned closer to the first wall 6 than to the second wall 8, and closer to the first wall 6 than to the support wall 7, along a first direction which passes successively through the first wall, the support wall, and the second wall. A particular embodiment of the locking element is illustrated in [Fig. 13].

[0053] The locking element 5 has a support wall 12 and preferably a handle 13. The handle 13 and the support wall 12 define a passage hole 14 for the wire element 2.

[0054] The wire element 2 is divided into a first strand 2a and a second strand 2b. The first strand 2a of the wire element 2 passes through the second slot 10 and the through hole 14. The first strand 2a extends along a first face of the support wall 12 and around the first wall. The second strand 2b of the wire element 2 passes through the second slot 10 and along a second face of the support wall 12, around the support wall 7, to pass through the body 4 via the first slot 9. Continuing to extend, the second strand 2b around the first wall 6 to form the first strand 2a.

[0055] In other words, the first strand 2a and the second strand 2b pass through the body 4 via the second slot 10. The two strands extend towards the first wall 7 in order to bypass the first wall 7 and rejoin. The two strands are separated by the support wall 12. The second strand 2b passes through the body 4 again via the first slot 9 and bypasses the first wall in order to rejoin the first strand 2a. The second strand 2b is positioned between the support wall 7 and the support wall 12. The support wall 12 is positioned between the first strand 2a and the second strand 2b. When the second strand 2b is put under tension, the second strand 2b rotates the support wall 12 towards the bearing wall 7. The first strand 2a being arranged between the support wall 12 and the bearing wall 7, the first strand 2a applies a force on the support wall 12 in the direction of the bearing wall 7 which presses the first strand 2a against the bearing wall 7.This allows the wire element 2 to be locked in the chosen position against the support wall 7.

[0056] The greater the tensile force applied to the first strand 2a, the greater the force applied by the support wall 12 to the second strand 2b to hold the second strand 2b in position. The first strand 2a is the tensioned strand, while the second strand 2b is the free strand.

[0057] In the locked position, the locking element 5 presses the second strand 2b against the support wall 7, which has the effect of locking the second strand 2b. In the unlocked position, the locking element 5 defines a functional clearance with the support wall 12 to allow the second strand 2b to slide.

[0058] Preferably, to keep the second strand 2b locked, the support wall 12 can be provided with pins 15, teeth, or any other means suitable for penetrating the second strand 2b. The pins 15 make it possible to hold the second strand 2b in position even when the tension in the first strand 2a decreases. It is particularly advantageous for the pins 15 to be arranged facing the area where the second strand 2b bypasses the support wall 7, as it is easier to ensure contact between the pins 15 and the second strand 2b, which will tend to follow the shape of the support wall 7. The bypass can be at least 180°, preferably at least 270°.

[0059] In the embodiments illustrated in figures 1 to 11, the pivoting shaft 11 which allows the pivoting of the locking element 5 relative to the body 4 also forms the first wall 6. In other words, the locking element 5 is pivotally mounted relative to the body 4 around the first wall 6. In this case, the first strand 2a and the second strand 2b go around the first wall 6, which also forms the pivoting shaft 11, to join together.

[0060] In an alternative embodiment illustrated in [Fig. 15], the body 4 defines more slots than the first slot 9 and the second slot 10. The pivot shaft 11 is not formed by the first wall 6. The locking element 5 defines an additional slot so that the wire element 2 passes through the support wall 12 and allows the first strand 2a to continue with the second strand 2b. The operation of the locking element 5 is identical to that described above, with the first strand 2a being able to press the support wall 12 against the second strand 2b and against the support wall 7 to fix the position of the second strand 2b.

[0061] To facilitate the movement of the locking element 5 to the unlocked position, it is advantageous to provide the locking element 5 with a handle 13. In the illustrated embodiments, the handle 13 is mounted opposite the support wall 12 and the bearing wall 7 when the locking device 5 is in the locked position. This opposite mounting defines the access hole 14.

[0062] Another configuration of the handle 13 is possible, for example by placing it offset from the support wall 12 in a direction parallel to the pivot axis of the locking element 5.

[0063] The fixing of the locking element 5 on the body 4 and its mobile mounting relative to the body 4 are particularly advantageous because they allow the position of the second strand 2b to be maintained even when the body 4 moves.

[0064] In the embodiments illustrated in figures 3 to 11, the body 4 is mounted movable relative to a support 16. Preferably, the body 4 is mounted movable by pivoting relative to the support 16. Even more preferably, the body 4 is mounted movable by pivoting around an additional pivot shaft which is formed by the second wall 8 or another wall.

[0065] The support 16 defines a through cavity 17 and the second wall 8 passes through the through cavity 17. Preferably, the additional pivot axis of the body 4 with respect to the support 16 predominantly comprises a component parallel to the pivot axis of the blocking element 5 with respect to the body 4.

[0066] Applying tension to the first strand 2a results in a displacement of the body 4 towards the side with the locking element 5. When the body 4 moves relative to the support 16 in the opposite direction, the body 4 and the locking element 5 move in a direction that tends to increase the tensile force in the first strand 2a, so that the second strand 2b remains locked against the support wall 7. The same occurs when the body 4 moves towards the end of the first strand 2a that is not fixed to the body 4. This displacement can induce a decrease in the stress in the first strand 2a. It may be advantageous to use the pins 15 to ensure a secure fastening.

[0067] By its construction with two slots separated by the support wall 7, the body 4 is able to secure the wire element 2, which winds around the support wall and whose two strands meet around the first wall 6. However, once the wire element 2 is secured and under tension, it is very difficult, if not impossible, to move the wire element inside the body 4. It is therefore particularly advantageous to use the locking element 5, which is mounted to move relative to the body 4. By moving the locking element 5 relative to the body 4 away from the support wall 7, it is possible to reduce the force applied by the support wall 12 on the second strand 2b. This reduction in force allows the first strand 2a and the second strand 2b to slide.

[0068] A body defining two slots for the passage of a strap and whose function is to tighten the strap is known to slackliners as a "Banana." The "Banana" device is used to lock a strap at the desired length. The "Banana" device is used in conjunction with an adjustment device, for example, a ratchet tensioner, which allows the strap to be tightened and then loosened at the end of use. However, in this activity, easily adjusting the length of the strap under tension is not required. The "Banana" device does not allow adjustment of the length of the strap that is under tension.

[0069] When the support wall 12 is provided with pins, the sliding of the second strand 2b is possible when the support wall 12 reaches a threshold position which corresponds substantially to the position where the pins 15 no longer penetrate the wire element 2.

[0070] In order to facilitate the movement of the locking element 5 from the locking position to the unlocking position, it is advantageous that the adjustment device be provided with a handle 13 and more particularly that the handle 13 be fixed to the locking element 5 and be mounted pivotally relative to the locking element 5 in order to better adapt the position of the handle 13 to the direction of the force to be applied to move the support wall 12 away from the support wall 7.

[0071] It is particularly advantageous to provide that the support wall 7 is free of sharp edges in order to avoid shearing the wire element 2 when the latter is subjected to significant stresses. More preferably, the contact surface with the wire element 2 is curved and advantageously, the support wall 7 has a circular cross-section.

[0072] It is also advantageous that the contact area between the wire element 2 and the first wall 6 be free of sharp edges. It is advantageous that the first wall 6 have a curved surface and preferably a circular cross-section. However, if the wire element 2 is only in contact with the blocking element 5 and not with the first wall 6, as illustrated in Figures 2 to 11, the cross-section of the first wall 6 is of little importance. It is then advantageous that the portion of the blocking element 5 intended to be covered by the wire element 2 be a curved surface and more preferably an arc of a circle.

[0073] Figures 1 and 2 illustrate an embodiment of an adjustable-length lanyard. The lanyard has a wire element 2 and a body 4 that defines an anchor ring for attaching a connector. As mentioned above, the orientation of the body 4 relative to the longitudinal axis of the first strand 2a does not affect the locking of the second strand 2b as long as the locking element 5 is in the locked position. The handle 13 can be pivotally mounted around a handle shaft 18, which is fixed to the locking element 5. The handle shaft 18 is stationary relative to the locking element 5.

[0074] The movement of the locking element 5 relative to the body 4 is facilitated, which makes it easier to extend the effective length of the wire element 2 when the first strand 2a is under tension.

[0075] Figures 3 to 11 illustrate embodiments in which the body 4 is pivotally mounted relative to a support 16. Figures 3, 4, 7, and 8 illustrate two different embodiments of a body 4 with the locking element 5 in an unlocked position. Figures 5, 6, 9, and 10 illustrate two different embodiments of a body 4 with the locking element 5 in a locked position.

[0076] Figures 3 to 6 illustrate an embodiment in which the body 4 is curved, that is to say the direction which successively connects the first wall 6, the support wall 7 and the second wall 8 is curved.

[0077] Figures 7 to 10 illustrate an embodiment in which the body is planar, that is to say that the direction which successively connects the first wall 6, the support wall 7 and the second wall 8 is a straight line.

[0078] In a particular embodiment, the locking element 5 is mounted to move relative to the body 4 within a limited angular range, for example, within an angular range of less than 20°. The locking element 5 defines a through hole, and the support wall 7 passes through the through hole. The dimension of the through hole is larger than the dimension of the support wall 7 so as to allow relative displacement between the locking element 5 and the support wall 7. The difference between the dimension of the support wall 7 and the wall defining the through hole limits the displacement of the locking element 5 relative to the support wall 7. Limiting the angular amplitude of the locking element 5 ensures that the locking element 5 will lock the second strand 2b following a tensile force applied to the first strand 2a.

[0079] Fig. 11 illustrates a rope harness 3 equipped with a belt forming the support 16 and a pair of leg loops 29. The lanyard is attached to the belt by means of the body 4 which is fixed to a through cavity 17.

[0080] In a particular embodiment illustrated in [Fig. 1 1], the lanyard has a connector 19 at one end of the first strand 2a. The lanyard with a connector 19 is attached to the belt and the connector 19, hooked to an anchor, is able to support a user suspended in the rope harness 3.

[0081] Preferably, the connector 19 is permanently fixed to the first strand 2a. The adjustment device is configured to move the connector 19 closer to or further from the belt.

[0082] In an advantageous embodiment, the connector 19 is also fixed to a leg loop 29 so that the forces related to the weight of the user suspended in the harness are distributed between the belt and the leg loops 29.

[0083] Preferably, the rope harness 3 is equipped with two lanyards, one attached to the right side of the belt and the other to the left side of the belt. The right and left sides are separated by the median sagittal plane of the user wearing the rope harness 3.

[0084] More advantageously, the two connectors 19 form a right connector and a left connector which are respectively attached to the right thigh strap 29 and the right side of the belt or to the left thigh strap 29 and the left side of the belt. It is then advantageous to attach a movable anchor point 20 to the two connectors 19 and more preferably a flexible link 21 to be attached to the two connectors and a movable anchor point 20 to be moved along the flexible link 21, for example by sliding along the flexible link 21. The flexible link 21 can be a rope or a strap. The movable anchor point 20 can be a ring.

[0085] The belt may also be equipped with a gear holder 22 and any other equipment necessary for proper use by the user. The wire element 2 is preferably a strap or any other element whose length is greater than its width, which is itself greater than its thickness.

[0086] Fig. 14 illustrates an embodiment of a blocking element 5. The blocking element 5 defines a first through hole 5a for the passage of the first wall 6 so as to form the first pivot shaft 12. The blocking element defines a second through hole 5b for the passage of the support wall 7 so as to limit the angular displacement allowed for the pivoting of the blocking element 5 relative to the body 4. The first through hole 5a and the second through hole 5b are preferably dissociated.

[0087] It is advantageous for the locking element 5 to define a portion with a shape complementary to the shape of the support wall 7 so as to have significant contact between the second strand 2b and the locking element 5, which facilitates maintaining the lock when the tensile force in the first strand 2a decreases. In the illustrated embodiment, the locking element 5 is without a handle 13.

[0088] Figure 15 illustrates an alternative embodiment in which the wire element 2 does not bypass the first pivot shaft 11. The body 4 defines one or more additional slots besides the first slot 9 and the second slot 10. The locking element 5 defines a through-hole at the end of the support wall 12 so as to allow the first strand 2a to pass from the first face of the support wall towards the other face of the body to bypass the first wall 6 and form the second strand 2b. As with the previous embodiments, the tensile force applied to the first strand 2a presses the support wall 12 against the bearing wall 7, thus clamping the second strand 2b.

[0089] In Figures 1 to 15, the locking element 5 is shown as a monolithic piece. However, it is also possible to form the locking element 5 in several parts, for example with an inner part 5' and an outer part 5”. The inner part 5' is illustrated in [Fig. 16] while the outer part 5” is illustrated in Figures 17 and 18 respectively in a top view and a bottom view.

[0090] The internal portion 5' can define one or more first hooks 23 which are intended to hook onto the first wall 6 and allow pivoting relative to the first wall 6. The first hooks 23 function identically to the wall that delimits the through hole 5a. The internal portion 5' also defines one or more second hooks 24 which are intended to receive the support wall 7. The internal part 5' is openwork to allow the passage of the wire element 2. The internal part 5' can be fitted with arms 25 which connect the first hooks 23 and the second hooks 24.

[0091] The outer part 5” defines one or more hooks 26 which are intended to receive the support wall 7. The outer part 5” defines the pins 15.

[0092] The inner part 5' is mounted movable relative to the outer part 5”. The inner part 5' and the outer part 5” are mounted movable to pivot independently around the first wall 6.

[0093] The space between the inner part 5' and the outer part 5" defines the through hole 14. Preferably, the through hole is extended by at least one through hole which passes through the upper part 5" as illustrated in figures 17 and 18.

[0094] It is particularly advantageous for the inner portion 5' to be movable relative to the outer portion 5" with limited functional play. In the illustrated embodiment, the inner portion 5' and the outer portion 5" both define openings 27 that are opposite each other. A rod 28 passes through both openings 27 in order to limit the movement of the outer portion 5" relative to the inner portion 5'. As illustrated in Figures 20 and 21, the inner portion 5' and the outer portion 5" are separated by the support wall 7. The outer portion 5" forms the support wall 12.

[0095] In the embodiment illustrated in [Fig.21], the inner part 5' and the outer part 5” are attached to a body 4. The body 4 is intended to be fixed to a support 16.

[0096] The first strand 2a passes under the first wall 6 and the support wall 7 through the second slot 10. The second strand 2b passes through the passage hole 14 and over the outer portion 5”. The first strand 2a is extended by the second strand 2b, which bypasses the first wall 6 by passing between the first wall 6 and the first strand 2a. The second strand 2b bypasses the support wall 7. The second strand 2b is positioned between the support wall 7 and the outer portion 5”. The second strand 2b exits the locking element 5 by passing between the first strand and the other portion of the second strand.

[0097] Applying tension to the first strand 2a and the second strand 2b causes the outer portion 5” to move towards the support wall 7 and to press the outer portion 5” against the second strand 2b. The second strand 2b is wedged against the support wall and the outer portion 5”. The first strand 2a presses the two portions of the second strand against the inner portion 5' and / or against the first wall 6. When the strands are under tension, applying a force to the outer portion 5” to move it away from the inner portion 5' and away from the support wall 7 reduces the supports on the second strand 2b which facilitates the movement of the strands and therefore the loosening of the wire element.

Claims

1. Demands Adjustment device (1) configured to adjust the length of a wire element (2) comprising: - a wire element (2); - a body (4) having at least a first wall (6), a support wall (7) and a second wall (8) arranged to define at least a first slot (9) and a second slot (10) intended for the passage of strands of the wire element (2), the first slot (9) being delimited at least by the first wall (6), the second slot (10) being delimited at least by the second wall (8), the second slot (10) being distinct and separated from the first slot (9) by the support wall (7); - a locking element (5) mounted movably between a locking position and an unlocking position, the locking element (5) being fixed to the body (4) and mounted movably to pivot relative to the body (4) around a pivot shaft (11) to move closer to or further from the support wall (7), the pivot shaft (11) being disposed closer to the first wall (6) than to the second wall (8) and closer to the first wall (6) than to the support wall (7) along a first direction which passes successively through the first wall (6), the support wall (7) and the second wall (8); in which the locking element (5) has a support wall (12) moving closer to or further from the support wall (7); in which a first strand (2a) of the wire element (2) passes through the second slot (10) and extends along a first face of the support wall (12) to bypass the first wall (6); in which a second strand (2b) of the wire element (2) passes through the second slot (10) and extends along a second face of the support wall (12) and passes through the first slot (9) to bypass the first wall (6) and continues as the first strand (2a): in which, in the locked position, the first strand (2a) applies a force to the support wall (12) in the direction of the bearing wall (7) and the second strand (2b) is wedged between the support wall (12) and the bearing wall (7); and in which, in the unlocking position, the support wall (12) defines a functional clearance with the bearing wall (7) to allow the second strand (2b) to slide.

2. Adjustment device for a wire element (2) according to claim 1 in which the second face of the support wall (12) is provided with pins (15) intended to be inserted into the wire element (2).

3. Adjustment device for a wire element (2) according to any one of claims 1 and 2 wherein the locking element (5) defines a through hole for the passage of the support wall (7), a height of the support wall (7) being less than a height of the through hole along the pivoting direction of the locking element (5) so as to constrain the pivoting of the locking element (5) to a predefined angular range.

4. Adjustment device for a wire element (2) according to any one of claims 1 to 3 wherein the first direction of the body (4) is curved.

5. Adjustment device for a wire element (2) according to any one of claims 1 to 4 in which a handle (13) is pivotally mounted about a handle shaft (18) extending parallel to the first pivot shaft (11).

6. Adjustment device for a wire element (2) according to any one of claims 1 to 5 wherein the locking element (5) is pivotally mounted about the first wall (6).

7. Adjustment device for a wire element (2) according to any one of claims 1 to 6 wherein the support wall (7) is devoid of a sharp edge in a contact area with the wire element (2).

8. Adjustment device for a wire element (2) according to any one of claims 1 to 7 wherein the locking element (5) is devoid of a sharp edge in a contact area with the wire element (2).

9. Adjustment device for a wire element (2) according to claims 7 and 8 wherein the support wall (7) has a circular cross-section and / or the blocking element (5) defines a bypass zone by the wire element (2) whose external face is a portion of a circular arc.

10. A device for adjusting a wire element (2) according to any one of claims 1 to 9, wherein the locking element (5) is formed by an internal part (5') and an external part (5”) each mounted pivotally around the first wall (6), the external part (5”) being mounted movable relative to the internal part (5') with limited functional play, the internal part (5') and the external part (5”) being separated by the support wall (7).

11. Adjustment device for a wire element (2) according to any one of claims 1 to 10 wherein the body (4) is pivotally mounted about a support (16) around an additional pivoting shaft.

12. Adjustment device for a wire element (2) according to claim 11 in which the second wall (8) forms the additional pivoting shaft.

13. Adjustment device for a wire element (2) according to any one of claims 11 and 12 wherein the body (4) defines a hook ring distinct from the first slot (9) and the second slot (10).

14. Rope harness (3) comprising a device for adjusting a wire element (2) according to any one of claims 11 to 13 wherein the support (16) is a strap attached to the waist belt or to one of the thigh loops (29).

15. Rope harness (3) according to claim 14 wherein the wire element (2) connects the belt with a connector (19) linked to a movable anchor point (20).

16. A rope harness (3) according to claim 15 comprising a second adjustment device configured to adjust a length of a second wire element according to any one of claims 10 to 12 wherein the adjustment device is attached to the abdominal belt on one side right or left relative to a median sagittal plane and the second adjustment device is attached to the abdominal belt on the other side right or left, the second wire element connecting the belt to a second connector linked to the movable anchor point (20).