EP3721946B1 - Harness with compact adjustment device - Google Patents

Harness with compact adjustment device Download PDF

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Publication number
EP3721946B1
EP3721946B1 EP20167900.8A EP20167900A EP3721946B1 EP 3721946 B1 EP3721946 B1 EP 3721946B1 EP 20167900 A EP20167900 A EP 20167900A EP 3721946 B1 EP3721946 B1 EP 3721946B1
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EP
European Patent Office
Prior art keywords
wire element
elastic
undulations
belt
apertured
Prior art date
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EP20167900.8A
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German (de)
French (fr)
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EP3721946A1 (en
Inventor
Loïc BLONDEAU
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Zedel SAS
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Zedel SAS
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Publication of EP3721946A1 publication Critical patent/EP3721946A1/en
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Classifications

    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B35/00—Safety belts or body harnesses; Similar equipment for limiting displacement of the human body, especially in case of sudden changes of motion
    • A62B35/0006—Harnesses; Accessories therefor
    • A62B35/0025—Details and accessories
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B35/00—Safety belts or body harnesses; Similar equipment for limiting displacement of the human body, especially in case of sudden changes of motion
    • A62B35/0006—Harnesses; Accessories therefor
    • A62B35/0025—Details and accessories
    • A62B35/0031—Belt sorting accessories, e.g. devices keeping the belts in comfortable positions

Definitions

  • the invention relates to a tie-in harness comprising a belt and a pair of leg loops.
  • tie-in harnesses ensure the safety of people.
  • a tie-in harness comprises a belt and a pair of leg loops.
  • the belt and the leg loops can be thicker or thinner to ensure user comfort.
  • a harness intended for work at height must be particularly comfortable to allow prolonged use. In climbing, the harness must also be so as not to injure the climber who falls in a lead route.
  • the harness In the field of mountaineering and ski touring, the harness is mainly intended for tying in a rope.
  • the thicknesses of the belt and the thigh circumference can be thinner because the latter are rarely put under tension. This results in a gain in weight and compactness appreciated by athletes, but to the detriment of their comfort.
  • the harness is versatile and the user does not need to multiply his equipment.
  • the document FR 2 842 741 A1 discloses a tie-in harness with adjustable waistband and leg loops.
  • a tie-in harness with an adjustable belt and leg loops is known from EP 1 277 497 A1 .
  • the object of the invention is to remedy these drawbacks and, in particular, to propose a harness which has a device for adjusting the circumference of the belt or at least one circumference of the thigh which is compact and easy to use. According to the invention, this object is achieved by a harness comprising leg loops and a belt provided with a device for adjusting the circumference of the belt, as defined in claim 1.
  • the tie-in harness is remarkable in that the device for adjusting the circumference of the belt comprises an elastic wire element having a first end fixed to a first end of the belt, an openwork part mounted movably on the elastic wire element, the perforated part defining a through hole through which passes the elastic wire element and a loop fixed to the second end of the belt, the loop cooperating with the perforated part to close the belt.
  • the elastic wire element forms a plurality of undulations at rest, the plurality of undulations having a lateral dimension greater than the lateral dimension of the through hole to block the apertured part.
  • the plurality of undulations are reduced or disappear when the elastic wire element is under tension, the lateral dimension of the elastic wire element under tension being less than or equal to the lateral dimension of the through-hole to allow sliding of the perforated part.
  • a tie-in harness comprising a belt and leg loops provided with a device for adjusting the circumference of at least one leg loop, as defined in claim 2.
  • the tie-in harness is remarkable in that the device for adjusting the circumference of at least one thigh circumference comprises an elastic cord element having a first end fixed to a first end of the at least one thigh circumference, an openwork part movably mounted on the elastic cord element, the perforated part defining a through hole through which the elastic cord element passes and a loop fixed to the second end of the at least one leg loop, the loop cooperating with the perforated part to close the at least one thigh circumference.
  • the elastic wire element forms a plurality of undulations at rest, the plurality of undulations having a lateral dimension greater than the lateral dimension of the through hole to block the apertured part.
  • the plurality of undulations are reduced or disappear when the elastic wired element is under tension, the lateral dimension of the elastic wired element under tension being less than or equal to the lateral dimension of the through hole to allow sliding of the perforated part along the along the elastic wire element.
  • the elastic wire element comprises a sheath made of a non-stretchable material which surrounds a core made of an elastic material, the sheath forming the undulations around the core or the elastic wire element is an element woven inside of which elastic threads and non-elastic threads are woven, the elastic threads having a shorter length than the non-elastic threads.
  • a first end of the sheath is fixed to a first end of the core and a second end of the sheath is fixed to a second end of the core.
  • the sheath is slidably mounted relative to the core between the first and second ends.
  • the elastic wire element defines undulations having a height at least equal to twice the height of the perforated part.
  • the elastic corded element defines a reduction in its length equal to at least 33% between a stretched configuration and an unstretched configuration.
  • the thickness of the sheath is at least equal to 1/5 of the lateral dimension of the through hole.
  • the elastic wire element has a free end terminated by a bead preventing separation between the perforated part and the elastic wire element.
  • the invention also relates to a method for adjusting a belt or a leg circumference of a harness which is easy to implement with a compact adjustment device, as defined in claim 9.
  • a tie-in harness 1 such as that shown schematically in figure 1 comprises a belt 2 provided with a waist circumference 2a associated with a device 3 for adjusting the circumference of the belt 2 which can also perform the function of device for opening/closing the belt 2.
  • the harness 1 also has a pair of thigh loops 4, each thigh loop 4 being preferentially connected to the back part of the belt 2 advantageously by two straps 5 that may or may not be elastic.
  • Each thigh loop 4 is connected to the ventral part, for example by a bridge 6 via a central ring 7.
  • each leg loop 4 is fixed independently to the front part of the belt 2.
  • each thigh circumference 4 is associated with a device 8 for adjusting the circumference of the thigh circumference 4 which, in this exemplary embodiment also performs the function of device for opening/closing the thigh loop 4.
  • the adjustment device 3 is fixed in first and second positions A and B on a waist support band 2a.
  • the adjustment device 3 is fixed by sewing on the two ends of the belt 2.
  • the adjustment device 3 is configured in such a way as to adjust the circumference of the waist circumference to allow adjustment of the circumference to the build of the user.
  • An identical configuration is advantageously used for the device 8 for adjusting the circumference of the thigh 4.
  • the device 3 for adjusting the circumference of the belt 2 can produce a device for opening/closing the belt 2 or not. In the latter case, the belt 2 is always closed and its circumference is adjustable. The same may apply to the devices 8 for adjusting the circumference of the thigh loops 4.
  • the harness 1 advantageously has no shoulder straps in order to reduce the weight of the harness 1 and its size.
  • an adjustment device 3 for the belt 2 and/or an adjustment device 8 for the leg loops 4 in comparison with an architecture or the belt 3 or the thigh loops 4 have a fixed circumference.
  • an adjustment device that is simple to use and compact. For ease of use and compactness, it is advantageous to have a reduced number of parts when adjusting the circumference. It is also important to have a configuration which ensures sufficient mechanical strength of the thigh loop 4 or of the belt 2. Finally, it is preferable to have an adjustment device which provides a large number of adjustment positions that are accessible and therefore a large number of proposed circumferences.
  • the rest of the description mainly deals with a device 3 for adjusting the belt 2, but it also covers a device 8 for adjusting a thigh circumference 4 unless otherwise indicated.
  • the adjustment device comprises an elastic wire element which cooperates with an openwork part defining a through hole.
  • the section of the through hole is greater than or equal to that of the elastic wired element under tension and less than that of the wired element at rest.
  • the wired element passes through the hole in the perforated part.
  • the operation is opposite to that of the cord clamp of the prior art which modulates the section of the through hole to pinch the wired element.
  • part of the wire element When the perforated part is subjected to a tensile stress along the longitudinal axis of the elastic wire element, part of the wire element is stretched and the other part is at rest. These two parts of the wire element are separated by the perforated part.
  • the part of the wire element subjected to the tensile stress sees its cross-section reduce and in particular in the part of the wire element located in the through hole in the immediate vicinity of the portion of the wire element under stress. There is then a reduction in the contact surface between the wire element and the internal wall of the through-hole to maintain the perforated part in the desired position.
  • the other part of the wire element not subjected to the tension separated from the first part by the perforated part is not able to hold the perforated part in position.
  • Such a configuration is not satisfactory for forming a device for adjusting a thigh circumference or a device for adjusting a belt because this configuration does not make it possible to resist the displacement of a perforated part subjected to a mass of 400 kg this which can be reached during a fall.
  • the adjustment device 3 of the belt 2 has an elastic wire element 9 which cooperates with an openwork part 10.
  • the elastic wired element 9 passes through a through hole 10a of the perforated part 10.
  • the size of the wired element changes , that is to say its section perpendicular to the longitudinal axis.
  • the elastic wire element 9 has a first end which is fixed to a first end of the belt 2 or of a thigh loop.
  • the perforated part 10 is movably mounted on the elastic wire element 9.
  • the perforated part 10 moves along the longitudinal axis of the elastic wire element 9 preferably between the first and second opposite ends of the elastic wire element 9
  • the perforated piece 10 is not fixedly mounted on the belt 2 or the thigh circumference 4, which allows greater freedom in its positions.
  • the perforated part 10 cooperates with a buckle 11 fixed to the second end of the belt 2 or of the thigh loop 4.
  • the perforated part 10 and the loop 11 cooperate to close the belt 2 or the thigh loop 4 of the harness.
  • the perforated part 10 penetrates inside the loop 11 according to a first orientation and rotates to prevent its exit from the loop 11.
  • the loop 11 is a fixed loop, that is to say with a constant perimeter.
  • the loop 11 is fixed by a wire, for example in the form of a rope or a strap.
  • the force applied to the adjustment device 3.8 and which seeks to increase the circumference comes partly from the buckle 11.
  • the buckle 11 bears against the perforated part 10 which is held in position by the element wired elastic 9.
  • the loop 10 advantageously passes over the perforated part 10 so that it presses on the perforated part 10 and tends to cause the perforated part 10 to rotate with respect to the longitudinal axis of the elastic wired element 9
  • the rotation of the perforated part 10 under load makes it more difficult to move it along the longitudinal axis of the elastic wire element 9.
  • the loop 11 passes around the elastic wire element 9.
  • the perforated part 10 moves along the longitudinal axis of the elastic wire element 9 during the adjustment phase and then is blocked to form a stop.
  • the stop defines the position of the loop 11 along the elastic wire element 9 and which defines the circumference of the belt of the harness 1. It is advantageously the same for the leg loops 4.
  • the elastic wire element 9 is an element which is in a wavy or zig-zag shape at rest and which is substantially straight under tension. In other words, when the elastic wire element 9 is unstretched or at rest, it forms a plurality of undulations. When the elastic wire element 9 is stretched or stressed in longitudinal tension, the plurality of undulations is reduced or disappears.
  • the value of the amplitude of the undulations is a function of the value of the tensile force applied to the elastic wire element 9 along the longitudinal axis.
  • the perforated part 10 In order to form a 3/8 adjustment device which supports greater tensile forces without the perforated part 10 moving, it is advantageous to make the perforated part 10 cooperate with an elastic wire element 9 which forms undulations. In the area that is not under tensile stress, at least one ripple is present. In the area that is under stress, the undulations have disappeared or have been reduced.
  • the unconstrained zone While in the prior art, the unconstrained zone is flat or substantially square, which requires applying significant pressure to the elastic wire element 9 to lock its position, according to the invention the unconstrained zone has one or more undulations which face the side wall of the perforated part 10.
  • the perforated part 10 tries to move along the longitudinal direction of the elastic wire element 9 while the undulation is oriented differently.
  • the force applied by the perforated part in contact with the elastic wire element 9 is no longer a frictional force but a force which seeks to deform the elastic wire element 9 and which presses on the undulation.
  • the undulation or undulations oppose the movement of the perforated part because the perforated part must push on the undulations along the longitudinal axis in order to move.
  • the force applied to the perforated part 10 to enlarge the circumference of the belt advantageously results in the bringing into contact of the side wall of the perforated part 10 with an undulation.
  • the perforated part 10 tries to move the corrugation which is not possible because the material forming the corrugation is connected to the first end of the belt and is already under tension because of the perforated part 10.
  • the orientation of the material forming the undulation is different from the orientation of the elastic wire element 9 in the perforated part 10. It is therefore not easy to insert, by force, the corrugation into the through hole of the perforated part 10 in order to move the perforated part 10.
  • this configuration makes it possible to continuously define the value of the circumference of the belt or the circumference of the thigh. Under load, the loop 11 is in contact with the elastic wire element and with the perforated part 10.
  • the height of the undulation, or amplitude is greater than the height of the through hole made in the perforated part 10 and inside which the elastic wire element 9 circulates so that the undulation comes into contact with the side wall of the the perforated part 10.
  • the elastic wire element 9 is under tensile stress, it is also possible to provide that undulations are present whose height or amplitude is less than that of the through hole.
  • corrugation implies a surplus of material in front of the perforated part 10 which requires the application of a significant constraint to be able to move the perforated part 10.
  • a part of the corrugation comes into contact with the side wall of the perforated part 10 which creates additional friction on the side wall of the perforated part 10.
  • the elastic wire element 9 advantageously comprises a tubular sheath 12, essentially made of a non-stretchable material, as well as a set of elastic threads 13 forming an elastic core.
  • the length of the tubular sheath 12 defines the length of the elastic wire element 9 when it is stretched.
  • the elastic threads 13 extend when the elastic threaded element 9 is put under tension.
  • the non-stretchable material is, for example, high tenacity polyamide or polyester, and has a very low elongation capacity under normal conditions of use of the elastic cord element 9. This capacity is much lower than that elastic material constituting the son 13, namely for example an elastomer such as latex or Lycra TM , for example at least ten times lower.
  • the perforated part 10 comes to rest on an undulation which blocks the perforated part.
  • the perforated part presses on the corrugation which applies a tensile stress on the tubular sheath 12.
  • the corrugation is formed by the elastic threads 13 unstressed or weakly constrained after the perforated part 10.
  • the elastic threads 13 seek to find a unstressed state and the sheath 12 having a length greater than the length of the unstressed wires 13 prevents the realization of this state which defines the undulations.
  • the undulation is associated with a stress applied by the elastic threads 13 which oppose the movement of the perforated part 10.
  • a first end of the sheath 12 is fixed to a first end of the core formed by the wires 13 and a second end of the sheath 12 is fixed to a second end of the core.
  • the sheath 12 is mounted to slide relative to the core between the first and second ends.
  • the sheath 12 can slide relative to the core at any point between the first and second ends. At rest, the sheath 12 and advantageously the elastic core 13 form a plurality of undulations between the two ends of the elastic wire element 9. Preferably, the undulations of the sheath 12 are arranged alternately on either side of blade. When the elastic wire element 9 is at rest, there is a force applied by the sheath 12 on the elastic threads to form the undulations.
  • the point of contact between the perforated part 10 and the sheath 12 defines the zone under stress and the unstressed zone.
  • the sheath 12 and advantageously the elastic core in the unstressed zone are reorganized with respect to the elastic threads 13 to reform undulations which will oppose the movement of the perforated part 10.
  • the elastic wire element 9 defines undulations having a height at least equal to twice the height of the through opening 10a of the perforated part 10.
  • the undulation comes in front of the side wall from the cavity through 10a to the end and which provides friction and makes it more complicated the deformation of the corrugation to fit into the through cavity 10a.
  • the height of the elastic wire element 9, that is to say the distance which separates two opposite vertices of two opposite undulations is at least twice greater than the thickness of the elastic wire element 9 when it is rectilinear, preferably at least five times greater and even more preferably at least ten times greater.
  • the waves formed by the sheath 12 are sufficiently large that they cannot be forced into the through hole 10a.
  • the modulation of the force along the longitudinal axis makes it possible to modulate the amplitude of the undulations significantly and therefore to modulate the size of the elastic wire element 9 facing the through hole.
  • the sheath 12 defines an internal section which contains the elastic threads 13. It is particularly advantageous to provide that when the threaded element 9 is under tension, the undulations having disappeared, in a section plane perpendicular to the longitudinal axis of the elastic wire element 9, the surface occupied by the elastic threads 13 is less than 90% of the internal surface of the sheath 12. The surface occupied by the threads 13 is at least equal to 15% of the internal surface of the sheath 12.
  • a sheath 12 whose thickness is at least equal to 1/5 of the height of the through hole.
  • the thickness of the sheath is the distance which separates the internal face and the external face of the sheath 12. With such a thickness of sheath 12, in the rest position, the sheath 12 effectively opposes the movement of the perforated part 10. The thickness of the corrugation effectively blocks the movement of the perforated part 10.
  • the elastic corded element 9 is configured to have a reduction in its length at least equal to 33% between its stretched state and its non-stretched state, that is to say at rest.
  • a minimum rate of reduction makes it possible to have a surplus of sheath 12 and therefore undulations formed by the sheath 12 which are deep and high enough to block the movement of the perforated part 10.
  • the reduction in length is at least equal to 50% between the stretched position and the non-stretched position.
  • a wire element 9 in the form of a strap of rectangular section.
  • the width of the strap varies little between its stretched configuration and its non-stretched configuration. Only the thickness or height of the strap changes significantly.
  • This configuration makes it possible to define the orientation of the perforated part 10 by using a through hole whose section is substantially complementary to the section of the elastic wire element 9 in its stretched configuration.
  • the perforated part 10 has no means for applying pressure to the elastic threads 13.
  • the perforated part 10 is not and does not have a cord press as in the prior art. The holding in place is achieved by means of the force applied by the undulation which opposes the movement of the perforated part 10 and not by means of the pressure applied by the cord press on the elastic threads 13.
  • the through hole 10a arranged in the perforated part 10 defines a rectilinear through hole between the two ends of the elastic wire element 9 from one end to the other of the perforated part 10 when the elastic wire element 9 is under tension along its longitudinal axis.
  • This configuration is different from those of the prior art where a strap passes through two through holes offset from each other so that the strap changes direction between the two through holes. The change in direction introduces two friction zones between the strap and the edges of the two through holes.
  • the openwork part may also have several collinear through-holes. In the configurations of the prior art, the force applied by the user to open or close the belt or the thigh loop will be identical because it is necessary to overcome the same frictional force on the wired element.
  • part of the wired element is under tension which reduces or eliminates the undulations. It is then easier to move the perforated part towards the stretched zone than towards the non-stretched zone.
  • the effort differential promotes a better understanding of the product by the user compared to conventional strap tightening systems.
  • the surface occupied by the wires 13 and by the sheath 12 is less than or equal to the surface defined by the through-hole under stretching and at rest.
  • the elastic wire element 9 is formed by a woven element, for example a strap or a cord, inside which are woven elastic threads 13 and non-elastic threads.
  • the elastic threads 13 are woven for example under tension in order to form undulations at rest. It is advantageous to use a strap because the undulations are better controlled.
  • the length of the elastic threads is less than the length of the non-elastic threads so that at rest the elastic threads generate oscillations.
  • the elastic wire element 9 is in the form of a strap or a cord.
  • the elastic wire element 9 has a square or rectangular section under tension.
  • the corrugations are present on two opposite faces of the sheath.
  • the elastic wire element 9 has a free end terminated by a bead 14 preventing separation between the perforated part 10 and the elastic wire element 9.
  • the perforated part 10 can be made of any material such as plastic, metal or wood.
  • the figure 5 illustrates in longitudinal and transverse sectional view, the perforated part 10 which defines a ring.

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  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Insulated Conductors (AREA)
  • Flexible Shafts (AREA)
  • Package Frames And Binding Bands (AREA)

Description

Domaine techniqueTechnical area

L'invention est relative à un harnais d'encordement comprenant une ceinture et une paire de tours de cuisse.The invention relates to a tie-in harness comprising a belt and a pair of leg loops.

Technique antérieurePrior technique

Dans le domaine de l'escalade, de l'alpinisme, du ski de randonnée, ou pour réaliser des travaux en hauteur, les harnais d'encordement permettent d'assurer la sécurité des personnes.In the field of climbing, mountaineering, ski touring, or for carrying out work at height, tie-in harnesses ensure the safety of people.

De manière classique, un harnais d'encordement comporte une ceinture et une paire de tours de cuisse. Selon le type d'utilisation, la ceinture et les tours de cuisse peuvent être plus ou moins épais afin d'assurer le confort de l'utilisateur. Par exemple, un harnais destiné à des travaux en hauteur doit être particulièrement confortable pour permettre une utilisation prolongée. En escalade, le harnais doit l'être également pour ne pas blesser le grimpeur qui chute dans une voie en tête.Conventionally, a tie-in harness comprises a belt and a pair of leg loops. Depending on the type of use, the belt and the leg loops can be thicker or thinner to ensure user comfort. For example, a harness intended for work at height must be particularly comfortable to allow prolonged use. In climbing, the harness must also be so as not to injure the climber who falls in a lead route.

Dans le domaine de l'alpinisme et du ski de randonnée, le baudrier est principalement destiné à l'encordement d'une cordée. Les épaisseurs de la ceinture et du tour de cuisse peuvent être plus fines car ces derniers sont rarement mis en tension. Il en résulte un gain de poids et de compacité apprécié des sportifs, mais au détriment de leur confort.In the field of mountaineering and ski touring, the harness is mainly intended for tying in a rope. The thicknesses of the belt and the thigh circumference can be thinner because the latter are rarely put under tension. This results in a gain in weight and compactness appreciated by athletes, but to the detriment of their comfort.

Afin de garantir de bonnes conditions d'utilisation quelle que soit la discipline pratiquée, il est important de réaliser un compromis entre le confort de l'utilisateur, le poids du harnais d'encordement et sa compacité. De cette façon, le harnais est polyvalent et l'utilisateur n'a pas besoin de multiplier ses équipements. Dans de nombreuses activités, il est particulièrement avantageux d'utiliser un harnais qui est le plus léger possible ce qui implique de choisir des solutions astucieuses pour gagner quelques grammes.In order to guarantee good conditions of use whatever the discipline practiced, it is important to achieve a compromise between the comfort of the user, the weight of the tie-in harness and its compactness. In this way, the harness is versatile and the user does not need to multiply his equipment. In many activities, it is particularly advantageous to use a harness that is as light as possible, which means choosing clever solutions to save a few grams.

Il est connu de fermer une ceinture ou un tour de cuisse au moyen d'un anneau qui coopère avec une pièce allongée. La pièce allongée est insérée dans l'anneau puis basculée pour fermer la ceinture ou le tour de cuisse et empêcher la désolidarisation avec la boucle lorsque la ceinture ou le tour de cuisse est mis sous tension. Cependant, cette configuration n'est pas réglable ce qui limite son intérêt.It is known to close a belt or a thigh loop by means of a ring which cooperates with an elongated part. The elongated piece is inserted into the ring then swung to close the belt or the leg loop and prevent it from separating with the buckle when the belt or the leg loop is put under tension. However, this configuration is not adjustable which limits its interest.

Il est particulièrement important d'avoir un dispositif de réglage qui autorise plusieurs tours de taille différents pour s'adapter aux multiples conditions d'utilisation tout au long de l'année. Il en est de même pour la circonférence du tour de cuisse.It is particularly important to have an adjustment device that allows several different waistlines to adapt to the multiple conditions of use throughout the year. The same is true for the circumference of the thigh circumference.

Il est connu du document EP 1557198 des harnais qui comportent des tours de cuisse réglables. La circonférence du tour de cuisse est définie par un bandeau de maintien sous la forme d'un cordon qui coopère avec un serre-cordon fixé sur le tour de cuisse. Le serre-cordon applique une contrainte de serrage sur le cordon. Cette solution n'est pas totalement satisfaisante car elle est volumineuse et la tenue sous charge n'est pas considérée comme suffisante.It is known from the document EP 1557198 harnesses that include adjustable leg loops. The circumference of the thigh circumference is defined by a retaining band in the form of a cord which cooperates with a cord clamp fixed to the thigh circumference. The cord clamp applies a clamping stress to the cord. This solution is not totally satisfactory because it is bulky and the resistance under load is not considered sufficient.

De même, le document FR 2 842 741 A1 divulgue un harnais d'encordement avec une ceinture et des tours de cuisse réglables.Likewise, the document FR 2 842 741 A1 discloses a tie-in harness with adjustable waistband and leg loops.

Un harnais d'encordement avec une ceinture réglable et des tours de cuisse est connu de EP 1 277 497 A1 .A tie-in harness with an adjustable belt and leg loops is known from EP 1 277 497 A1 .

Il est également avantageux de prévoir un procédé d'utilisation qui est facile à mettre en œuvre.It is also advantageous to provide a method of use which is easy to implement.

Objet de l'inventionObject of the invention

L'invention a pour but de remédier à ces inconvénients et, en particulier, de proposer un harnais qui possède un dispositif de réglage de la circonférence de la ceinture ou d'au moins un tour de cuisse qui est compact et facile à utiliser. Selon l'invention, ce but est atteint par un harnais comprenant des tours de cuisse et une ceinture munie d'un dispositif de réglage de la circonférence de la ceinture, comme défini dans la revendication 1.The object of the invention is to remedy these drawbacks and, in particular, to propose a harness which has a device for adjusting the circumference of the belt or at least one circumference of the thigh which is compact and easy to use. According to the invention, this object is achieved by a harness comprising leg loops and a belt provided with a device for adjusting the circumference of the belt, as defined in claim 1.

Le harnais d'encordement est remarquable en ce que le dispositif de réglage de la circonférence de la ceinture comporte un élément filaire élastique ayant une première extrémité fixée à une première extrémité de la ceinture, une pièce ajourée montée mobile sur l'élément filaire élastique, la pièce ajourée définissant un trou traversant à travers lequel passe l'élément filaire élastique et une boucle fixée à la deuxième extrémité de la ceinture, la boucle coopérant avec la pièce ajourée pour fermer la ceinture.The tie-in harness is remarkable in that the device for adjusting the circumference of the belt comprises an elastic wire element having a first end fixed to a first end of the belt, an openwork part mounted movably on the elastic wire element, the perforated part defining a through hole through which passes the elastic wire element and a loop fixed to the second end of the belt, the loop cooperating with the perforated part to close the belt.

L'élément filaire élastique forme une pluralité d'ondulations au repos, la pluralité d'ondulations ayant une dimension latérale supérieure à la dimension latérale du trou traversant pour bloquer la pièce ajourée. La pluralité d'ondulations se réduit ou disparait lorsque l'élément filaire élastique est sous tension, la dimension latérale de l'élément filaire élastique sous tension étant inférieure ou égale à la dimension latérale du trou traversant pour autoriser le coulissement de la pièce ajourée.The elastic wire element forms a plurality of undulations at rest, the plurality of undulations having a lateral dimension greater than the lateral dimension of the through hole to block the apertured part. The plurality of undulations are reduced or disappear when the elastic wire element is under tension, the lateral dimension of the elastic wire element under tension being less than or equal to the lateral dimension of the through-hole to allow sliding of the perforated part.

Selon l'invention, ce but est également atteint par un harnais d'encordement comportant une ceinture et des tours de cuisse munis d'un dispositif de réglage de la circonférence d'au moins un tour de cuisse, comme défini dans la revendication 2. Le harnais d'encordement est remarquable en ce que le dispositif de réglage de la circonférence d'au moins un tour de cuisse comporte un élément filaire élastique ayant une premier extrémité fixée à une première extrémité du au moins un tour de cuisse, une pièce ajourée montée mobile sur l'élément filaire élastique, la pièce ajourée définissant un trou traversant à travers lequel passe l'élément filaire élastique et une boucle fixée à la deuxième extrémité du au moins un tour de cuisse, la boucle coopérant avec la pièce ajourée pour fermer le au moins un tour de cuisse.According to the invention, this object is also achieved by a tie-in harness comprising a belt and leg loops provided with a device for adjusting the circumference of at least one leg loop, as defined in claim 2. The tie-in harness is remarkable in that the device for adjusting the circumference of at least one thigh circumference comprises an elastic cord element having a first end fixed to a first end of the at least one thigh circumference, an openwork part movably mounted on the elastic cord element, the perforated part defining a through hole through which the elastic cord element passes and a loop fixed to the second end of the at least one leg loop, the loop cooperating with the perforated part to close the at least one thigh circumference.

L'élément filaire élastique forme une pluralité d'ondulations au repos, la pluralité d'ondulations ayant une dimension latérale supérieure à la dimension latérale du trou traversant pour bloquer la pièce ajourée. La pluralité d'ondulations se réduit ou disparaît lorsque l'élément filaire élastique est sous tension, la dimension latérale de l'élément filaire élastique sous tension étant inférieure ou égale à la dimension latérale du trou traversant pour autoriser le coulissement de la pièce ajourée le long de l'élément filaire élastique.The elastic wire element forms a plurality of undulations at rest, the plurality of undulations having a lateral dimension greater than the lateral dimension of the through hole to block the apertured part. The plurality of undulations are reduced or disappear when the elastic wired element is under tension, the lateral dimension of the elastic wired element under tension being less than or equal to the lateral dimension of the through hole to allow sliding of the perforated part along the along the elastic wire element.

Préférentiellement, l'élément filaire élastique comporte une gaine réalisée dans un matériau non étirable qui entoure une âme réalisée dans un matériau élastique, la gaine formant les ondulations autour de l'âme ou l'élément filaire élastique est un élément tissé à l'intérieur duquel sont tissés des fils élastiques et des fils non élastiques, les fils élastiques ayant une longueur inférieure aux fils non élastiques.Preferably, the elastic wire element comprises a sheath made of a non-stretchable material which surrounds a core made of an elastic material, the sheath forming the undulations around the core or the elastic wire element is an element woven inside of which elastic threads and non-elastic threads are woven, the elastic threads having a shorter length than the non-elastic threads.

Selon un développement de l'invention, une première extrémité de la gaine est fixée à une première extrémité de l'âme et une deuxième extrémité de la gaine est fixée à une deuxième extrémité de l'âme. La gaine est montée coulissante par rapport à l'âme entre les première et deuxième extrémités.According to a development of the invention, a first end of the sheath is fixed to a first end of the core and a second end of the sheath is fixed to a second end of the core. The sheath is slidably mounted relative to the core between the first and second ends.

De manière avantageuse, l'élément filaire élastique définit des ondulations ayant une hauteur au moins égale à la deux fois la hauteur de la pièce ajourée. Préférentiellement, l'élément filaire élastique définit une réduction de sa longueur égale au moins à 33% entre une configuration étirée et une configuration non-étirée.Advantageously, the elastic wire element defines undulations having a height at least equal to twice the height of the perforated part. Preferably, the elastic corded element defines a reduction in its length equal to at least 33% between a stretched configuration and an unstretched configuration.

Dans un mode de réalisation particulier, l'épaisseur de la gaine est au moins égale à 1/5 de la dimension latérale du trou traversant.In a particular embodiment, the thickness of the sheath is at least equal to 1/5 of the lateral dimension of the through hole.

Selon un développement, l'élément filaire élastique possède une extrémité libre terminée par un bourrelet empêchant la désolidarisation entre la pièce ajourée et l'élément filaire élastique.According to one development, the elastic wire element has a free end terminated by a bead preventing separation between the perforated part and the elastic wire element.

L'invention a également pour objet un procédé de réglage d'une ceinture ou d'un tour de cuisse d'un harnais qui soit facile à mettre en œuvre avec un dispositif de réglage compact, comme défini dans la revendication 9.The invention also relates to a method for adjusting a belt or a leg circumference of a harness which is easy to implement with a compact adjustment device, as defined in claim 9.

Selon l'invention, ce but est atteint par un procédé de réglage comportant successivement :

  • fournir un harnais d'encordement selon l'une des configurations précédentes ;
  • mettre en tension l'élément filaire élastique pour réduire ou faire disparaître les ondulations ;
  • déplacer la pièce ajourée pour définir la circonférence de la ceinture ou du au moins un tour de cuisse et supprimer la mise sous tension de l'élément filaire élastique.
According to the invention, this object is achieved by an adjustment method comprising successively:
  • providing a tie-in harness according to one of the preceding configurations;
  • tensioning the elastic wire element to reduce or eliminate the undulations;
  • moving the perforated piece to define the circumference of the belt or of at least one thigh loop and removing the tensioning of the elastic wire element.

Description sommaire des dessinsBrief description of the drawings

D'autres avantages et caractéristiques ressortiront plus clairement de la description qui va suivre de modes particuliers de réalisation et de mise en œuvre de l'invention donnés à titre d'exemples non limitatifs et représentés aux dessins annexés, dans lesquels :

  • la figure 1 illustre, de manière schématique, un harnais d'encordement muni d'une ceinture et de tours de cuisse ;
  • la figure 2 illustre, de manière schématique, un harnais d'encordement muni d'une ceinture et de tours de cuisse munis de dispositifs de réglage ;
  • la figure 3 illustre, de manière schématique, en coupe, un élément filaire élastique sous tension muni d'une gaine entourant une âme en matériau élastique ;
  • la figure 4 illustre, de manière schématique, en coupe, un élément filaire élastique au repos muni d'une gaine entourant une âme en matériau élastique ;
  • la figure 5 illustre, de manière schématique, en coupe, un élément filaire élastique associé à une pièce ajourée mettant sous tension une partie de l'élément filaire élastique.
Other advantages and characteristics will emerge more clearly from the following description of particular embodiments and implementations of the invention given by way of non-limiting examples and represented in the appended drawings, in which:
  • the figure 1 schematically illustrates a tie-in harness fitted with a belt and leg loops;
  • the picture 2 schematically illustrates a tie-in harness fitted with a belt and leg loops fitted with adjustment devices;
  • the picture 3 schematically illustrates, in section, an elastic wired element under tension provided with a sheath surrounding a core of elastic material;
  • the figure 4 illustrates, schematically, in section, an elastic wire element at rest provided with a sheath surrounding a core of elastic material;
  • the figure 5 schematically illustrates, in cross-section, an elastic wire element associated with an openwork part putting a portion of the elastic wire element under tension.

Description des modes de réalisationDescription of embodiments

Un harnais d'encordement 1 tel que celui représenté schématiquement à la figure 1 comporte une ceinture 2 dotée d'un tour de taille 2a associé à un dispositif de réglage 3 de la circonférence de la ceinture 2 qui peut réaliser également la fonction de dispositif d'ouverture/fermeture de la ceinture 2.A tie-in harness 1 such as that shown schematically in figure 1 comprises a belt 2 provided with a waist circumference 2a associated with a device 3 for adjusting the circumference of the belt 2 which can also perform the function of device for opening/closing the belt 2.

Le harnais 1 possède également une paire de tours de cuisse 4, chaque tour de cuisse 4 étant préférentiellement relié à la partie dorsale de la ceinture 2 avantageusement par deux sangles 5 élastiques ou non. Chaque tour de cuisse 4 est relié à la partie ventrale par exemple par un pontet 6 via un anneau central 7. En alternative de réalisation illustrée à la figure 2, chaque tour de cuisse 4 est fixé indépendamment à la partie frontale de la ceinture 2.The harness 1 also has a pair of thigh loops 4, each thigh loop 4 being preferentially connected to the back part of the belt 2 advantageously by two straps 5 that may or may not be elastic. Each thigh loop 4 is connected to the ventral part, for example by a bridge 6 via a central ring 7. As an alternative embodiment illustrated in picture 2 , each leg loop 4 is fixed independently to the front part of the belt 2.

Dans l'exemple de réalisation illustré à la figure 2, chaque tour de cuisse 4 est associé à un dispositif de réglage 8 de la circonférence du tour de cuisse 4 qui, dans cet exemple de réalisation réalise également la fonction de dispositif d'ouverture/fermeture du tour de cuisse 4.In the exemplary embodiment illustrated in picture 2 , each thigh circumference 4 is associated with a device 8 for adjusting the circumference of the thigh circumference 4 which, in this exemplary embodiment also performs the function of device for opening/closing the thigh loop 4.

Comme représenté à la figure 2, le dispositif de réglage 3 est fixé en des première et deuxième positions A et B sur une bande de support du tour de taille 2a. Par exemple, le dispositif de réglage 3 est fixé par couture sur les deux extrémités de la ceinture 2.As depicted at picture 2 , the adjustment device 3 is fixed in first and second positions A and B on a waist support band 2a. For example, the adjustment device 3 is fixed by sewing on the two ends of the belt 2.

Le dispositif de réglage 3 est configuré de manière à régler la circonférence du tour de taille pour permettre un ajustement de la circonférence à la corpulence de l'utilisateur. Une configuration identique est avantageusement utilisée pour le dispositif de réglage 8 du tour de cuisse 4. Selon les configurations, le dispositif de réglage 3 de la circonférence de la ceinture 2 peut réaliser un dispositif d'ouverture/fermeture de la ceinture 2 ou non. Dans ce dernier cas de figure, la ceinture 2 est toujours fermée et sa circonférence est réglable. Il peut en être de même pour les dispositifs de réglage 8 de la circonférence des tours de cuisse 4. Le harnais 1 est avantageusement dépourvu de bretelles afin de réduire le poids du harnais 1 et son encombrement.The adjustment device 3 is configured in such a way as to adjust the circumference of the waist circumference to allow adjustment of the circumference to the build of the user. An identical configuration is advantageously used for the device 8 for adjusting the circumference of the thigh 4. Depending on the configurations, the device 3 for adjusting the circumference of the belt 2 can produce a device for opening/closing the belt 2 or not. In the latter case, the belt 2 is always closed and its circumference is adjustable. The same may apply to the devices 8 for adjusting the circumference of the thigh loops 4. The harness 1 advantageously has no shoulder straps in order to reduce the weight of the harness 1 and its size.

Afin d'avoir un harnais utilisable dans un plus grand nombre de situations, il est avantageux d'avoir un dispositif de réglage 3 de la ceinture 2 et/ou un dispositif de réglage 8 de tours de cuisse 4 en comparaison d'une architecture ou la ceinture 3 ou les tours de cuisse 4 sont à circonférence fixe.In order to have a harness that can be used in a greater number of situations, it is advantageous to have an adjustment device 3 for the belt 2 and/or an adjustment device 8 for the leg loops 4 in comparison with an architecture or the belt 3 or the thigh loops 4 have a fixed circumference.

Il est particulièrement intéressant d'avoir un dispositif de réglage simple à utiliser et compact. Pour faciliter l'utilisation et la compacité, il est avantageux d'avoir un nombre de pièces réduit lors du réglage de la circonférence. Il est également important d'avoir une configuration qui assure la tenue mécanique suffisante du tour de cuisse 4 ou de la ceinture 2. Enfin, il est préférable d'avoir un dispositif de réglage qui procure un nombre important de positions de réglage accessibles et donc un nombre important de circonférences proposées.It is particularly advantageous to have an adjustment device that is simple to use and compact. For ease of use and compactness, it is advantageous to have a reduced number of parts when adjusting the circumference. It is also important to have a configuration which ensures sufficient mechanical strength of the thigh loop 4 or of the belt 2. Finally, it is preferable to have an adjustment device which provides a large number of adjustment positions that are accessible and therefore a large number of proposed circumferences.

La suite de la description traite principalement d'un dispositif de réglage 3 de la ceinture 2, mais cela couvre également un dispositif de réglage 8 d'un tour de cuisse 4 sauf indication contraire.The rest of the description mainly deals with a device 3 for adjusting the belt 2, but it also covers a device 8 for adjusting a thigh circumference 4 unless otherwise indicated.

Dans une configuration particulière, le dispositif de réglage comporte un élément filaire élastique qui coopère avec une pièce ajourée définissant un trou traversant. La section du trou traversant est supérieure ou égale à celle de l'élément filaire élastique sous tension et inférieure à celle de l'élément filaire au repos. L'élément filaire passe au travers du trou de la pièce ajourée. Ainsi, en tirant sur l'élément filaire élastique pour le tendre, la section de l'élément filaire diminue ce qui autorise la translation de la pièce ajourée le long de l'élément filaire. Le fonctionnement est opposé à celui du presse-cordon de l'art antérieur qui module la section du trou traversant pour pincer l'élément filaire. Cette solution est plus compacte que celle de l'art antérieur car la pièce ajourée est moins volumineuse que le presse-cordon.In a particular configuration, the adjustment device comprises an elastic wire element which cooperates with an openwork part defining a through hole. The section of the through hole is greater than or equal to that of the elastic wired element under tension and less than that of the wired element at rest. The wired element passes through the hole in the perforated part. Thus, by pulling on the elastic wire element to tighten it, the section of the wire element decreases, which allows the translation of the perforated part along the wire element. The operation is opposite to that of the cord clamp of the prior art which modulates the section of the through hole to pinch the wired element. This solution is more compact than that of the prior art because the perforated part is less voluminous than the cord press.

Lorsque la pièce ajourée est soumise à une contrainte en traction le long de l'axe longitudinal de l'élément filaire élastique, une partie de l'élément filaire se tend et l'autre partie est au repos. Ces deux parties de l'élément filaire sont séparées par la pièce ajourée. La partie de l'élément filaire soumise à la contrainte en traction voit sa section se réduire et notamment dans la partie de l'élément filaire située dans le trou traversant à proximité immédiate de la portion d'élément filaire sous contrainte. Il existe alors une réduction de la surface de contact entre l'élément filaire et la paroi interne du trou traversant pour maintenir la pièce ajourée dans la position recherchée. L'autre partie de l'élément filaire non soumise à la tension séparée de la première partie par la pièce ajourée n'est pas en mesure de maintenir la pièce ajourée en position. Une telle configuration n'est pas satisfaisante pour former un dispositif de réglage d'un tour de cuisse ou un dispositif de réglage d'une ceinture car cette configuration ne permet pas de résister au déplacement d'une pièce ajourée soumise une masse de 400kg ce qui peut être atteint lors d'une chute.When the perforated part is subjected to a tensile stress along the longitudinal axis of the elastic wire element, part of the wire element is stretched and the other part is at rest. These two parts of the wire element are separated by the perforated part. The part of the wire element subjected to the tensile stress sees its cross-section reduce and in particular in the part of the wire element located in the through hole in the immediate vicinity of the portion of the wire element under stress. There is then a reduction in the contact surface between the wire element and the internal wall of the through-hole to maintain the perforated part in the desired position. The other part of the wire element not subjected to the tension separated from the first part by the perforated part is not able to hold the perforated part in position. Such a configuration is not satisfactory for forming a device for adjusting a thigh circumference or a device for adjusting a belt because this configuration does not make it possible to resist the displacement of a perforated part subjected to a mass of 400 kg this which can be reached during a fall.

Pour améliorer la tenue mécanique, le dispositif de réglage 3 de la ceinture 2 possède un élément filaire élastique 9 qui coopère avec une pièce ajourée 10.To improve the mechanical strength, the adjustment device 3 of the belt 2 has an elastic wire element 9 which cooperates with an openwork part 10.

L'élément filaire élastique 9 passe au travers d'un trou traversant 10a de la pièce ajourée 10. Selon la valeur d'effort en tension appliqué à l'élément filaire selon l'axe longitudinal, l'encombrement de l'élément filaire évolue, c'est-à-dire sa section perpendiculairement à l'axe longitudinal.The elastic wired element 9 passes through a through hole 10a of the perforated part 10. Depending on the value of the tensile force applied to the wired element along the longitudinal axis, the size of the wired element changes , that is to say its section perpendicular to the longitudinal axis.

L'élément filaire élastique 9 possède une première extrémité qui est fixée à une première extrémité de la ceinture 2 ou d'un tour de cuisse. La pièce ajourée 10 est montée mobile sur l'élément filaire élastique 9. La pièce ajourée 10 se déplace le long de l'axe longitudinal de l'élément filaire élastique 9 préférentiellement entre les première et deuxième extrémités opposées de l'élément filaire élastique 9. La pièce ajourée 10 n'est pas montée fixement sur la ceinture 2 ou le tour de cuisse 4 ce qui autorise une plus grande liberté dans ses positions.The elastic wire element 9 has a first end which is fixed to a first end of the belt 2 or of a thigh loop. The perforated part 10 is movably mounted on the elastic wire element 9. The perforated part 10 moves along the longitudinal axis of the elastic wire element 9 preferably between the first and second opposite ends of the elastic wire element 9 The perforated piece 10 is not fixedly mounted on the belt 2 or the thigh circumference 4, which allows greater freedom in its positions.

La pièce ajourée 10 coopère avec une boucle 11 fixée à la deuxième extrémité de la ceinture 2 ou du tour de cuisse 4. La pièce ajourée 10 et la boucle 11 coopèrent pour fermer la ceinture 2 ou le tour de cuisse 4 du harnais. La pièce ajourée 10 pénètre à l'intérieur de la boucle 11 selon une première orientation et tourne pour empêcher sa sortie hors de la boucle 11. Avantageusement, la boucle 11 est une boucle fixe, c'est-à-dire à périmètre constant. La boucle 11 est fixée par un fil, par exemple sous la forme d'une corde ou d'une sangle.The perforated part 10 cooperates with a buckle 11 fixed to the second end of the belt 2 or of the thigh loop 4. The perforated part 10 and the loop 11 cooperate to close the belt 2 or the thigh loop 4 of the harness. The perforated part 10 penetrates inside the loop 11 according to a first orientation and rotates to prevent its exit from the loop 11. Advantageously, the loop 11 is a fixed loop, that is to say with a constant perimeter. The loop 11 is fixed by a wire, for example in the form of a rope or a strap.

En utilisation, l'effort appliqué sur le dispositif de réglage 3,8 et qui cherche à augmenter la circonférence provient en partie de la boucle 11. La boucle 11 vient en appuie sur la pièce ajourée 10 qui est maintenue en position par l'élément filaire élastique 9. La boucle 10 passe avantageusement par-dessus la pièce ajourée 10 de sorte qu'elle appuie sur la pièce ajourée 10 et tend à faire tourner la pièce ajourée 10 par rapport à l'axe longitudinal de l'élément filaire élastique 9. La rotation de la pièce ajourée 10 sous charge, rend plus difficile son déplacement le long de l'axe longitudinal de l'élément filaire élastique 9. De manière avantageuse, la boucle 11 passe autour de l'élément filaire élastique 9.In use, the force applied to the adjustment device 3.8 and which seeks to increase the circumference comes partly from the buckle 11. The buckle 11 bears against the perforated part 10 which is held in position by the element wired elastic 9. The loop 10 advantageously passes over the perforated part 10 so that it presses on the perforated part 10 and tends to cause the perforated part 10 to rotate with respect to the longitudinal axis of the elastic wired element 9 The rotation of the perforated part 10 under load makes it more difficult to move it along the longitudinal axis of the elastic wire element 9. Advantageously, the loop 11 passes around the elastic wire element 9.

La pièce ajourée 10 se déplace le long de l'axe longitudinal de l'élément filaire élastique 9 lors de la phase de réglage puis est bloquée pour former une butée. La butée définit la position de la boucle 11 le long de l'élément filaire élastique 9 et qui définit la circonférence de la ceinture du harnais 1. Il en est avantageusement de même pour les tours de cuisse 4.The perforated part 10 moves along the longitudinal axis of the elastic wire element 9 during the adjustment phase and then is blocked to form a stop. The stop defines the position of the loop 11 along the elastic wire element 9 and which defines the circumference of the belt of the harness 1. It is advantageously the same for the leg loops 4.

L'élément filaire élastique 9 est un élément qui est sous une forme ondulée ou de zig-zag au repos et qui est sensiblement rectiligne sous tension. En d'autres termes, lorsque l'élément filaire élastique 9 est non-étiré ou au repos, il forme une pluralité d'ondulations. Lorsque l'élément filaire élastique 9 est étiré ou sous contrainte en tension longitudinale, la pluralité d'ondulations est réduite ou disparaît. La valeur de l'amplitude des ondulations est fonction de la valeur de l'effort en traction appliqué sur l'élément filaire élastique 9 selon l'axe longitudinal.The elastic wire element 9 is an element which is in a wavy or zig-zag shape at rest and which is substantially straight under tension. In other words, when the elastic wire element 9 is unstretched or at rest, it forms a plurality of undulations. When the elastic wire element 9 is stretched or stressed in longitudinal tension, the plurality of undulations is reduced or disappears. The value of the amplitude of the undulations is a function of the value of the tensile force applied to the elastic wire element 9 along the longitudinal axis.

Afin de former un dispositif de réglage 3/8 qui supporte des efforts en traction plus importants sans que la pièce ajourée 10 ne se déplace, il est avantageux de faire coopérer la pièce ajourée 10 avec un élément filaire élastique 9 qui forme des ondulations. Dans la zone qui n'est pas sous contrainte en tension, au moins une ondulation est présente. Dans la zone qui est sous contrainte, les ondulations ont disparu ou ont été réduites.In order to form a 3/8 adjustment device which supports greater tensile forces without the perforated part 10 moving, it is advantageous to make the perforated part 10 cooperate with an elastic wire element 9 which forms undulations. In the area that is not under tensile stress, at least one ripple is present. In the area that is under stress, the undulations have disappeared or have been reduced.

Alors que dans l'art antérieur, la zone non contrainte est plane ou sensiblement place ce qui nécessite d'appliquer une pression importante sur l'élément filaire élastique 9 pour bloquer sa position, selon l'invention la zone non contrainte possède une ou plusieurs ondulations qui font face à la paroi latérale de la pièce ajourée 10. La pièce ajourée 10 cherche à se déplacer selon la direction longitudinale de l'élément filaire élastique 9 alors que l'ondulation est orientée différemment. L'effort appliqué par la pièce ajourée en contact avec l'élément filaire élastique 9 n'est plus une force de frottement mais une force qui cherche à déformer l'élément filaire élastique 9 et qui appuie sur l'ondulation. L'ondulation ou les ondulations s'opposent au déplacement de la pièce ajourée car la pièce ajourée doit pousser sur les ondulations selon l'axe longitudinal pour se déplacer.While in the prior art, the unconstrained zone is flat or substantially square, which requires applying significant pressure to the elastic wire element 9 to lock its position, according to the invention the unconstrained zone has one or more undulations which face the side wall of the perforated part 10. The perforated part 10 tries to move along the longitudinal direction of the elastic wire element 9 while the undulation is oriented differently. The force applied by the perforated part in contact with the elastic wire element 9 is no longer a frictional force but a force which seeks to deform the elastic wire element 9 and which presses on the undulation. The undulation or undulations oppose the movement of the perforated part because the perforated part must push on the undulations along the longitudinal axis in order to move.

L'effort appliqué sur la pièce ajourée 10 pour agrandir la circonférence de la ceinture se traduit avantageusement par la mise en contact de la paroi latérale de la pièce ajourée 10 avec une ondulation. La pièce ajourée 10 cherche à déplacer l'ondulation ce qui n'est pas possible car le matériau formant l'ondulation est connecté à la première extrémité de la ceinture et est déjà sous tension à cause de la pièce ajourée 10. Par ailleurs, l'orientation du matériau formant l'ondulation est différente de l'orientation de l'élément filaire élastique 9 dans la pièce ajourée 10. Il n'est donc pas aisé d'insérer, de force, l'ondulation dans le trou traversant de la pièce ajourée 10 afin de déplacer la pièce ajourée 10. Il convient également de remarquer que cette configuration permet de définir de manière continue la valeur de la circonférence de la ceinture ou du tour de cuisse. Sous charge, la boucle 11 est en contact avec l'élément filaire élastique et avec la pièce ajourée 10.The force applied to the perforated part 10 to enlarge the circumference of the belt advantageously results in the bringing into contact of the side wall of the perforated part 10 with an undulation. The perforated part 10 tries to move the corrugation which is not possible because the material forming the corrugation is connected to the first end of the belt and is already under tension because of the perforated part 10. Furthermore, the orientation of the material forming the undulation is different from the orientation of the elastic wire element 9 in the perforated part 10. It is therefore not easy to insert, by force, the corrugation into the through hole of the perforated part 10 in order to move the perforated part 10. It should also be noted that this configuration makes it possible to continuously define the value of the circumference of the belt or the circumference of the thigh. Under load, the loop 11 is in contact with the elastic wire element and with the perforated part 10.

La hauteur de l'ondulation, ou amplitude, est supérieure à la hauteur du trou traversant aménagé dans la pièce ajourée 10 et à l'intérieur duquel circule l'élément filaire élastique 9 pour que l'ondulation vienne en contact de la paroi latérale de la pièce ajourée 10. Lorsque l'élément filaire élastique 9 est sous contrainte en tension, il est également possible de prévoir que des ondulations soient présentes dont la hauteur ou amplitude est inférieure à celle du trou traversant.The height of the undulation, or amplitude, is greater than the height of the through hole made in the perforated part 10 and inside which the elastic wire element 9 circulates so that the undulation comes into contact with the side wall of the the perforated part 10. When the elastic wire element 9 is under tensile stress, it is also possible to provide that undulations are present whose height or amplitude is less than that of the through hole.

La présence d'une ondulation implique un surplus de matière en face de la pièce ajourée 10 ce qui nécessite l'application d'une contrainte importante pour pouvoir déplacer la pièce ajourée 10. Une partie de l'ondulation vient en contact de la paroi latérale de la pièce ajourée 10 ce qui crée un frottement supplémentaire sur la paroi latérale de la pièce ajourée 10.The presence of a corrugation implies a surplus of material in front of the perforated part 10 which requires the application of a significant constraint to be able to move the perforated part 10. A part of the corrugation comes into contact with the side wall of the perforated part 10 which creates additional friction on the side wall of the perforated part 10.

De manière avantageuse illustrée aux figures 3, 4 et 5, l'élément filaire élastique 9 comprend avantageusement une gaine tubulaire 12, réalisée essentiellement dans un matériau non étirable, ainsi qu'un ensemble de fils élastiques 13 formant une âme élastique. La longueur de la gaine tubulaire 12 définit la longueur de l'élément filaire élastique 9 lorsqu'il est étiré. Les fils élastiques 13 s'étendent lorsque l'élément filaire élastique 9 est mis sous tension.Advantageously illustrated in figure 3 , 4 and 5 , the elastic wire element 9 advantageously comprises a tubular sheath 12, essentially made of a non-stretchable material, as well as a set of elastic threads 13 forming an elastic core. The length of the tubular sheath 12 defines the length of the elastic wire element 9 when it is stretched. The elastic threads 13 extend when the elastic threaded element 9 is put under tension.

Le matériau non étirable, est par exemple du polyamide ou du polyester haute ténacité, et possède une capacité d'allongement très faible en condition normale d'utilisation de l'élément filaire élastique 9. Cette capacité est très inférieure à celle du matériau élastique constitutif des fils 13, à savoir par exemple un élastomère tel du latex ou du lycra™, par exemple au moins dix fois inférieure.The non-stretchable material is, for example, high tenacity polyamide or polyester, and has a very low elongation capacity under normal conditions of use of the elastic cord element 9. This capacity is much lower than that elastic material constituting the son 13, namely for example an elastomer such as latex or Lycra ™ , for example at least ten times lower.

Lors de la mise sous contrainte de l'élément filaire élastique 9, la pièce ajourée 10 vient en appui sur une ondulation ce qui bloque la pièce ajourée. La pièce ajourée appuie sur l'ondulation ce qui applique une contrainte en tension sur la gaine tubulaire 12. L'ondulation est formée par les fils élastiques 13 non contraints ou faiblement contraints après la pièce ajourée 10. Les fils élastiques 13 cherchent à retrouver un état non contraint et la gaine 12 présentant une longueur supérieure à la longueur des fils 13 non contraint empêche la réalisation de cet état ce qui définit les ondulations. L'ondulation est associée à une contrainte appliquée par les fils élastiques 13 qui s'opposent au déplacement de la pièce ajourée 10. Cette contrainte associée au changement de direction de la gaine en sortie du trou traversant permet de supporter des efforts en tension beaucoup plus important que les configurations de l'art antérieur. De manière schématique, l'âme élastique est présentée rectiligne dans la zone non contrainte, mais elle présente en réalité des oscillations liées à l'équilibre des efforts entre l'âme élastique qui cherche à réduire sa longueur et la gaine 12 qui se replie pour former les ondulations.When the elastic wire element 9 is put under stress, the perforated part 10 comes to rest on an undulation which blocks the perforated part. The perforated part presses on the corrugation which applies a tensile stress on the tubular sheath 12. The corrugation is formed by the elastic threads 13 unstressed or weakly constrained after the perforated part 10. The elastic threads 13 seek to find a unstressed state and the sheath 12 having a length greater than the length of the unstressed wires 13 prevents the realization of this state which defines the undulations. The undulation is associated with a stress applied by the elastic threads 13 which oppose the movement of the perforated part 10. This stress associated with the change of direction of the sheath at the exit of the through hole makes it possible to withstand much greater tension forces. important than the configurations of the prior art. Schematically, the elastic core is presented rectilinear in the unstressed zone, but it actually presents oscillations linked to the balance of the forces between the elastic core which seeks to reduce its length and the sheath 12 which folds up to form the waves.

Dans un mode de réalisation avantageux illustré à la figure 3, une première extrémité de la gaine 12 est fixée à une première extrémité de l'âme formée par les fils 13 et une deuxième extrémité de la gaine 12 est fixée à une deuxième extrémité de l'âme. La gaine 12 est montée coulissante par rapport à l'âme entre les premières et deuxième extrémités.In an advantageous embodiment illustrated in picture 3 , a first end of the sheath 12 is fixed to a first end of the core formed by the wires 13 and a second end of the sheath 12 is fixed to a second end of the core. The sheath 12 is mounted to slide relative to the core between the first and second ends.

La gaine 12 peut coulisser par rapport à l'âme en tout point entre les première et deuxième extrémités. Au repos, la gaine 12 et avantageusement l'âme élastique 13 forment une pluralité d'ondulations entre les deux extrémités de l'élément filaire élastique 9. De préférence, les ondulations de la gaine 12 sont disposées alternativement de part et d'autre de l'âme. Lorsque l'élément filaire élastique 9 est au repos, il existe une force appliquée par la gaine 12 sur les fils élastiques pour former les ondulations.The sheath 12 can slide relative to the core at any point between the first and second ends. At rest, the sheath 12 and advantageously the elastic core 13 form a plurality of undulations between the two ends of the elastic wire element 9. Preferably, the undulations of the sheath 12 are arranged alternately on either side of blade. When the elastic wire element 9 is at rest, there is a force applied by the sheath 12 on the elastic threads to form the undulations.

En utilisant une gaine 12 libre de mouvement par rapport à l'âme selon la direction longitudinale, le point de contact entre la pièce ajourée 10 et la gaine 12 définit la zone sous contrainte et la zone non contrainte. La gaine 12 et avantageusement l'âme élastique dans la zone non contrainte se réorganisent par rapport aux fils élastiques 13 pour reformer des ondulations qui vont s'opposer au déplacement de la pièce ajourée 10.By using a sheath 12 free to move relative to the web in the longitudinal direction, the point of contact between the perforated part 10 and the sheath 12 defines the zone under stress and the unstressed zone. The sheath 12 and advantageously the elastic core in the unstressed zone are reorganized with respect to the elastic threads 13 to reform undulations which will oppose the movement of the perforated part 10.

Dans une configuration particulière, l'élément filaire élastique 9 définit des ondulations ayant une hauteur au moins égale à deux fois la hauteur de l'ouverture traversante 10a de la pièce ajourée 10. L'ondulation vient en face de la paroi latérale depuis la cavité traversante 10a jusqu'à l'extrémité et qui procure du frottement et rend plus compliquée la déformation de l'ondulation pour s'insérer dans la cavité traversante 10a.In a particular configuration, the elastic wire element 9 defines undulations having a height at least equal to twice the height of the through opening 10a of the perforated part 10. The undulation comes in front of the side wall from the cavity through 10a to the end and which provides friction and makes it more complicated the deformation of the corrugation to fit into the through cavity 10a.

En position de repos illustré à la figure 4, la hauteur de l'élément filaire élastique 9, c'est-à-dire la distance qui sépare deux sommets opposés de deux ondulations opposées est au moins deux fois supérieure à l'épaisseur de l'élément filaire élastique 9 lorsqu'il est rectiligne, préférentiellement au moins cinq fois supérieure et encore plus préférentiellement au moins dix fois supérieure. De cette manière, les vagues formées par la gaine 12 sont suffisamment importantes pour ne pas pouvoir entrer de force dans le trou traversant 10a. La modulation de l'effort selon l'axe longitudinal permet de moduler l'amplitude des ondulations de manière importante et donc de moduler l'encombrement de l'élément filaire élastique 9 face au trou traversant.In rest position shown in figure 4 , the height of the elastic wire element 9, that is to say the distance which separates two opposite vertices of two opposite undulations is at least twice greater than the thickness of the elastic wire element 9 when it is rectilinear, preferably at least five times greater and even more preferably at least ten times greater. In this way, the waves formed by the sheath 12 are sufficiently large that they cannot be forced into the through hole 10a. The modulation of the force along the longitudinal axis makes it possible to modulate the amplitude of the undulations significantly and therefore to modulate the size of the elastic wire element 9 facing the through hole.

La gaine 12 définit une section interne qui contient les fils élastiques 13. Il est particulièrement avantageux de prévoir que lorsque l'élément filaire 9 est sous tension, les ondulations ayant disparu, dans un plan de coupe perpendiculaire à l'axe longitudinal de l'élément filaire élastique 9, la surface occupée par les fils élastiques 13 est inférieure à 90% de la surface interne de la gaine 12. La surface occupée par les fils 13 est au moins égale à 15% de la surface interne de la gaine 12.The sheath 12 defines an internal section which contains the elastic threads 13. It is particularly advantageous to provide that when the threaded element 9 is under tension, the undulations having disappeared, in a section plane perpendicular to the longitudinal axis of the elastic wire element 9, the surface occupied by the elastic threads 13 is less than 90% of the internal surface of the sheath 12. The surface occupied by the threads 13 is at least equal to 15% of the internal surface of the sheath 12.

Il est avantageux d'avoir une gaine 12 dont l'épaisseur est au moins égale à 1/5 de la hauteur du trou traversant. L'épaisseur de la gaine est la distance qui sépare la face interne et la face externe de la gaine 12. Avec une telle épaisseur de gaine 12, dans la position de repos, la gaine 12 s'oppose efficacement au déplacement de la pièce ajourée 10. L'épaisseur de l'ondulation bloque efficacement le déplacement de la pièce ajourée 10.It is advantageous to have a sheath 12 whose thickness is at least equal to 1/5 of the height of the through hole. The thickness of the sheath is the distance which separates the internal face and the external face of the sheath 12. With such a thickness of sheath 12, in the rest position, the sheath 12 effectively opposes the movement of the perforated part 10. The thickness of the corrugation effectively blocks the movement of the perforated part 10.

Il est également avantageux de prévoir que l'élément filaire élastique 9 soit configuré pour avoir une réduction de sa longueur au moins égale à 33% entre son état étiré et son état non étiré, c'est-à-dire au repos. Un tel taux minimal de réduction permet d'avoir un surplus de gaine 12 et donc des ondulations formées par la gaine 12 qui sont suffisamment profondes et hautes pour bloquer le déplacement de la pièce ajourée 10. De manière avantageuse, la réduction de longueur est au moins égale à 50% entre la position étirée et la position non étirée.It is also advantageous to provide that the elastic corded element 9 is configured to have a reduction in its length at least equal to 33% between its stretched state and its non-stretched state, that is to say at rest. Such a minimum rate of reduction makes it possible to have a surplus of sheath 12 and therefore undulations formed by the sheath 12 which are deep and high enough to block the movement of the perforated part 10. Advantageously, the reduction in length is at least equal to 50% between the stretched position and the non-stretched position.

Il est particulièrement avantageux d'avoir un élément filaire 9 sous la forme d'une sangle de section rectangulaire. Avec une sangle, la largeur de la sangle évolue peu entre sa configuration étirée et sa configuration non-étirée. Seule l'épaisseur ou hauteur de la sangle évolue de manière conséquente. Cette configuration permet de définir l'orientation de la pièce ajourée 10 en utilisant un trou traversant dont la section est sensiblement complémentaire de la section de l'élément filaire élastique 9 dans sa configuration étirée.It is particularly advantageous to have a wire element 9 in the form of a strap of rectangular section. With a strap, the width of the strap varies little between its stretched configuration and its non-stretched configuration. Only the thickness or height of the strap changes significantly. This configuration makes it possible to define the orientation of the perforated part 10 by using a through hole whose section is substantially complementary to the section of the elastic wire element 9 in its stretched configuration.

Dans un mode de réalisation avantageux, la pièce ajourée 10 est dépourvue de moyens d'application d'une pression sur les fils élastiques 13. En d'autres termes, la pièce ajourée 10 n'est pas et ne possède pas un presse-cordon comme dans l'art antérieur. Le maintien en place est réalisé au moyen de la force appliquée par l'ondulation qui s'oppose au déplacement de la pièce ajourée 10 et non au moyen de la pression appliquée par le presse-cordon sur les fils élastiques 13.In an advantageous embodiment, the perforated part 10 has no means for applying pressure to the elastic threads 13. In other words, the perforated part 10 is not and does not have a cord press as in the prior art. The holding in place is achieved by means of the force applied by the undulation which opposes the movement of the perforated part 10 and not by means of the pressure applied by the cord press on the elastic threads 13.

Dans une configuration avantageuse, le trou traversant 10a aménagé dans la pièce ajourée 10 définit un trou traversant rectiligne entre les deux extrémités de l'élément filaire élastique 9 d'une extrémité à l'autre de la pièce ajourée 10 lorsque l'élément filaire élastique 9 est sous tension selon son axe longitudinal. Cette configuration est différente de celles de l'art antérieur où une sangle passe au travers de deux trous traversants décalés l'un de l'autre de sorte que la sangle change de direction entre les deux trous traversants. Le changement de direction introduit deux zones de frottement entre la sangle et les arêtes des deux trous traversants. La pièce ajourée peut également comporter plusieurs trous traversants colinéaires. Dans les configurations de l'art antérieur, la force appliquée par l'utilisateur pour ouvrir ou fermer la ceinture ou le tour de cuisse sera identique car il faut vaincre la même force de frottement sur l'élément filaire. Au contraire selon l'invention, une partie de l'élément filaire est sous tension ce qui diminue ou élimine les ondulations. Il est alors plus facile de déplacer la pièce ajourée vers la zone tendue que vers la zone non tendue. Le différentiel d'effort favorise une meilleure compréhension du produit par l'utilisateur en comparaison des systèmes de serrage conventionnels par sangle.In an advantageous configuration, the through hole 10a arranged in the perforated part 10 defines a rectilinear through hole between the two ends of the elastic wire element 9 from one end to the other of the perforated part 10 when the elastic wire element 9 is under tension along its longitudinal axis. This configuration is different from those of the prior art where a strap passes through two through holes offset from each other so that the strap changes direction between the two through holes. The change in direction introduces two friction zones between the strap and the edges of the two through holes. The openwork part may also have several collinear through-holes. In the configurations of the prior art, the force applied by the user to open or close the belt or the thigh loop will be identical because it is necessary to overcome the same frictional force on the wired element. On the contrary according to the invention, part of the wired element is under tension which reduces or eliminates the undulations. It is then easier to move the perforated part towards the stretched zone than towards the non-stretched zone. The effort differential promotes a better understanding of the product by the user compared to conventional strap tightening systems.

De manière avantageuse, dans un plan de coupe perpendiculaire à l'axe longitudinal de l'élément filaire élastique 9, la surface occupée par les fils 13 et par la gaine 12 est inférieure ou égale à la surface définie par le trou traversant sous étirement et au repos.Advantageously, in a section plane perpendicular to the longitudinal axis of the elastic wire element 9, the surface occupied by the wires 13 and by the sheath 12 is less than or equal to the surface defined by the through-hole under stretching and at rest.

Dans un mode de réalisation particulier, l'élément filaire élastique 9 est formé par un élément tissé, par exemple une sangle ou une corde, à l'intérieur duquel sont tissés des fils élastiques 13 et des fils non élastiques. Les fils élastiques 13 sont tissés par exemple sous tension afin de former des ondulations au repos. Il est avantageux d'utiliser une sangle car les ondulations sont mieux maitrisées. La longueur des fils élastiques est inférieure à la longueur des fils non élastique de sorte qu'au repos les fils élastiques génèrent des oscillations.In a particular embodiment, the elastic wire element 9 is formed by a woven element, for example a strap or a cord, inside which are woven elastic threads 13 and non-elastic threads. The elastic threads 13 are woven for example under tension in order to form undulations at rest. It is advantageous to use a strap because the undulations are better controlled. The length of the elastic threads is less than the length of the non-elastic threads so that at rest the elastic threads generate oscillations.

Dans un mode de réalisation particulier, l'élément filaire élastique 9 est sous la forme d'une sangle ou d'un cordon. Préférentiellement, l'élément filaire élastique 9 possède une section carrée ou rectangulaire sous tension. Les ondulations sont présentes sur deux faces opposées de la gaine.In a particular embodiment, the elastic wire element 9 is in the form of a strap or a cord. Preferably, the elastic wire element 9 has a square or rectangular section under tension. The corrugations are present on two opposite faces of the sheath.

De manière avantageuse illustré à la figure 3, l'élément filaire élastique 9 possède une extrémité libre terminée par un bourrelet 14 empêchant la désolidarisation entre la pièce ajourée 10 et l'élément filaire élastique 9.Advantageously illustrated in picture 3 , the elastic wire element 9 has a free end terminated by a bead 14 preventing separation between the perforated part 10 and the elastic wire element 9.

La pièce ajourée 10 peut être réalisée dans un matériau quelconque tel qu'un matériau plastique, un métal ou du bois. La figure 5 illustre en vue de coupe longitudinale et transversale, la pièce ajourée 10 qui définit un anneau.The perforated part 10 can be made of any material such as plastic, metal or wood. The figure 5 illustrates in longitudinal and transverse sectional view, the perforated part 10 which defines a ring.

Claims (9)

  1. A roping harness (1) comprising thigh loops (4) and a belt (2) provided with a device (3) for adjusting the circumference of the belt (2), the device (3) for adjusting the circumference of the belt (2) comprising:
    - a wire element (9) having a first end attached to a first end of the belt (2),
    - an apertured part (10) movably mounted on the wire element (9), the apertured part (10) defining a through hole (10a) through which the wire element (9) passes, the through hole (10a) opening onto two opposite side walls of the apertured part (10),
    roping harness (1) characterized in that:
    - the wire element (9) is an elastic wire element forming a plurality of undulations at rest, the plurality of undulations having a first amplitude along a first direction, the first amplitude being greater than a lateral dimension of the through hole measured along the first direction, one undulation coming into contact with one of the side walls of the apertured part to block the apertured part (10) along the elastic wire element (9) and wherein the amplitude of the plurality of undulations is reduced or the plurality of undulations disappear when the wire member (9) is under tension along its longitudinal axis, the thickness of the wire member (9) under tension being less than or equal to the lateral dimension of the through hole so as to allow the apertured part (10) to slide along the elastic wire member (9), the thickness of the elastic wire member (9) under tension being measured along the first direction, and in that
    - a buckle (11) is attached to the second end of the belt (2), the buckle (11) abutting the aperture part (10) to close the belt (2), the buckle (11) defining a passageway having a first cross-section and the aperture part (10) having a shape able to pass through the passageway in a first orientation and to prevent passing through the passageway in a second orientation.
  2. A roping harness (1) comprising a belt (2) and leg loops (4) provided with a device (8) for adjusting the circumference of at least one leg loop (4), the device (8) for adjusting the circumference of at least one leg loop (4) comprising:
    - a wire element (9) having a first end attached to a first end of the at least one thigh band (4), the wire element (9) being elastic,
    - an apertured piece (10) movably mounted on the wire element (9), the apertured piece (10) defining a through hole (10a) through which the wire element (9) passes, the through hole (10a) opening onto two opposite side walls of the apertured piece (10),
    roping harness (1) characterized in that:
    - the elastic wire element (9) forms a plurality of undulations at rest, the plurality of undulations having a first amplitude along a first direction, the first amplitude being greater than a lateral dimension of the through hole measured along the first direction, one undulation coming into contact with one of the side walls of the apertured piece to block the apertured piece (10) along the elastic wire element (9) and wherein the amplitude of the plurality of undulations is reduced or the plurality of undulations disappear when the wire member (9) is under tension along its longitudinal axis, the thickness of the wire member (9) under tension being less than or equal to the lateral dimension of the through hole so as to allow the apertured member (10) to slide along the elastic wire member (9), the thickness of the elastic wire member (9) under tension being measured along the first direction, and in that
    - a loop (11) is attached to the second end of the at least one thigh loop (4), the loop (11) abutting the apertured part (10) to close the at least one thigh loop (4), the loop (11) defining a passageway having a first cross-sectional area and the apertured part (10) having a shape able to pass through the passageway in a first orientation and to prevent passing through the passageway in a second orientation.
  3. The roping harness (1) of any of claims 1 and 2 wherein the wire element (9) comprises a sheath (12) made of a non-stretchable material that surrounds a core made of an elastic material, the sheath (12) forming the undulations around the core or the wire element (9) is a woven element within which elastic yarns and inelastic yarns are woven, the elastic yarns having a length less than the inelastic yarns.
  4. The roping harness (1) according to any of claims 1 and 2 wherein the wire element (9) comprises a sheath (12) made of a non-stretchable material that surrounds a core made of an elastic material, the sheath (12) forming the undulations around the core and wherein a first end of the sheath (12) is attached to a first end of the core and a second end of the sheath (12) is attached to a second end of the core and wherein the sheath (12) is slidably mounted relative to the core between the first and second ends.
  5. The roping harness (1) according to any one of claims 1 to 4, wherein the wire element (9) defines undulations having a height at least equal to twice the lateral dimension of the apertured part (10) along the first direction.
  6. The roping harness (1) according to any one of claims 1 to 5, wherein the wire element (9) defines a reduction of its length equal to at least 33% between a stretched configuration and a non-stretched configuration.
  7. The roping harness (1) according to the preceding claim and any of claims 3 or 4 wherein the thickness of the sheath (12) is at least equal to 1/5 of the lateral dimension of the through hole.
  8. The roping harness (1) according to any one of the preceding claims wherein the wire element (9) has a free end terminated by a bead (14) preventing disassociation between the apertured part (10) and the wire element (9).
  9. A method of using a roping harness comprising the following steps:
    - providing a roping harness according to one of the preceding claims;
    - tensioning the wire element (9) to reduce the amplitude of the plurality of undulations or to make the undulations disappear;
    - moving the apertured part (10) to define the circumference of the belt (2) or of the at least one thigh loop (4) and suppressing the tensioning of the wire element (9) so that a undulation comes into contact with one of the side walls of the apertured part to block the apertured part (10) along the elastic wire element (9).
EP20167900.8A 2019-04-05 2020-04-03 Harness with compact adjustment device Active EP3721946B1 (en)

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Application Number Priority Date Filing Date Title
FR1903708A FR3094645B1 (en) 2019-04-05 2019-04-05 HARNESS WITH COMPACT ADJUSTER

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EP3721946A1 EP3721946A1 (en) 2020-10-14
EP3721946B1 true EP3721946B1 (en) 2022-04-27

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Publication number Priority date Publication date Assignee Title
FR3132228B1 (en) 2022-02-01 2024-03-22 Zedel RIKING-IN HARNESS WITH ATTACHING DEVICE

Citations (1)

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Publication number Priority date Publication date Assignee Title
FR2842741B1 (en) * 2002-07-25 2004-09-10 Beal Ets ADJUSTABLE SAFETY HARNESS

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FR2827522B1 (en) * 2001-07-20 2003-09-26 Mkm NON-OPENABLE CLOSED BELT HARNESS WITHOUT SAFETY BUCKLE
EP1557198A1 (en) 2004-01-22 2005-07-27 Ets Beal Safety harness
US9675137B2 (en) * 2015-09-08 2017-06-13 Steve Wu Elastic coreless rope belt

Patent Citations (1)

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Publication number Priority date Publication date Assignee Title
FR2842741B1 (en) * 2002-07-25 2004-09-10 Beal Ets ADJUSTABLE SAFETY HARNESS

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EP3721946A1 (en) 2020-10-14
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