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EP2576414B1 - Device for gripping and adjusting the tension of an elongate element such as a cable, rope or the like - Google Patents

Device for gripping and adjusting the tension of an elongate element such as a cable, rope or the like Download PDF

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Publication number
EP2576414B1
EP2576414B1 EP11721318.1A EP11721318A EP2576414B1 EP 2576414 B1 EP2576414 B1 EP 2576414B1 EP 11721318 A EP11721318 A EP 11721318A EP 2576414 B1 EP2576414 B1 EP 2576414B1
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EP
European Patent Office
Prior art keywords
jaws
assembly
jaw
cylinder
gripping
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Not-in-force
Application number
EP11721318.1A
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German (de)
French (fr)
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EP2576414A1 (en
Inventor
Ludwig Moreau
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Individual
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Individual
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Publication date
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Publication of EP2576414A1 publication Critical patent/EP2576414A1/en
Application granted granted Critical
Publication of EP2576414B1 publication Critical patent/EP2576414B1/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H59/00—Adjusting or controlling tension in filamentary material, e.g. for preventing snarling; Applications of tension indicators
    • B65H59/10—Adjusting or controlling tension in filamentary material, e.g. for preventing snarling; Applications of tension indicators by devices acting on running material and not associated with supply or take-up devices
    • B65H59/20—Co-operating surfaces mounted for relative movement
    • B65H59/22—Co-operating surfaces mounted for relative movement and arranged to apply pressure to material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
    • B66D3/00—Portable or mobile lifting or hauling appliances
    • B66D3/006—Power actuated devices operating on ropes, cables, or chains for hauling in a mainly horizontal direction
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B17/00—Vessels parts, details, or accessories, not otherwise provided for

Definitions

  • the present invention relates to a device for gripping and tensioning adjustment of an elongated element of cable, rope or similar type.
  • the present invention relates to a device for gripping and adjusting the tension of an elongated element, for which, with the same device as for its gripping, a tensile force exerted on the elongated element makes it possible to perform its tensioning, the tension imposed on the elongated element being also to some extent adjustable while maintaining gripping this element.
  • This gripping is achieved conventionally using jaws or a jaw that close on the elongated object. It is also known to use at least one means for actuating the jaws or the jaw, in particular at least one jack, to perform this gripping operation.
  • a gripping device is traversed longitudinally in its median part by the elongate element and has, in general, in the direction of its length a rear body extended by a transverse front clamping assembly to the device on said elongate member intermediate jaws at least partially surrounding said element.
  • These jaws are disposed inside said assembly before being movable longitudinally in said front assembly under the action of at least one actuating means.
  • the front assembly has at least one jaw guide system for approximating the jaws for gripping said member within said assembly, the distance between jaws decreasing with advancing forwardly in said set.
  • the document GB-A-190928294 discloses a cable or rope locking system using at least one jack, and an inclined plane for making the approximation or removal of two gripping portions, each being secured to a jack.
  • the document WO-A2-2007 / 015642 has a cable gripper system comprising a corner block and two sliding clamping members with respect to the corner block. The movement of the elements in question allows the tightening of a cable.
  • This publication is directed to a selection of an elastic material for making parts of the system.
  • the object of the present invention is to simplify the existing gripping devices of an elongated element while also enabling them to tension the elongated element with the possibility of adjusting it.
  • a device for gripping and tensioning an elongated element is provided according to the invention, said device being traversed longitudinally in its median portion by said elongated element and having in the direction of its length a rear body, intended for the introduction of said element into the device and extended by a clamping front assembly, intended for the output of said element of the device and acting transversely to the device on said elongate element by means of jaws at least partially surrounding said element and disposed within said front assembly, said jaws being movable longitudinally in said front assembly under the action of at least one actuating means, said front assembly having at least one jaw guide system for approximation of the jaws for gripping said element within said set emble, the distance between jaws decreasing during their forward movement, characterized in that the assembly before clamping is movable relative to the rear body and comprises a means of
  • the technical effect obtained by the present invention is to make it possible to achieve, in particular by using the same jack or by using more than one jack in operation. simultaneous and synchronized, two successive phases namely a gripping followed by an adjustable tensioning of the elongated element.
  • the device according to the present invention has the advantage of being considerably less complex than the combination of devices of the state of the art providing gripping with a voltage control device of the element, in particular by being able to involve the participation a reduced number of cylinders.
  • the device according to the present invention thus has the advantage of allowing, by a single device, a voltage adjustment of the elongate object while keeping it gripped, this without necessarily resulting in particular control means for the implementation of these two phases.
  • the securing means is an abutment disposed at the front portion of the front assembly preventing the forward movement of the jaws relative to said assembly.
  • the stop represents in fact a simple embodiment of the securing means.
  • the stop is in the form of a stop plate removably disposed at the front portion of the assembly before tightening.
  • the shape and the removable nature of this stop plate are advantageous because they allow easy replacement of the plate to possibly adapt to the different forms of jaws used or to remedy its wear.
  • the assembly before tightening comprises two bases disposed symmetrically with respect to its longitudinal axis, each of the bases being associated with a jaw and at least one base having an internal wall forming a ramp for sliding a jaw on it while being inclined towards the longitudinal axis of the front assembly in the forward direction of said assembly, said inner wall forming part of the guiding system of a jaw.
  • the gripping force is advantageously distributed uniformly around the periphery of the elongated element.
  • the guiding system has a sliding means and / or lateral support in the form of a dovetail, a rail or a race cooperating with rollers or balls, of a movie solid or liquid lubrication. It is indeed desirable to obtain a good sliding between jaw and corresponding base and possibly a limitation of undesired movement of the jaw in a lateral direction to the assembly before tightening.
  • biasing means are provided between each jaw and the rear portion of the assembly before tightening, the first end of the return means being secured to said rear portion and the second end being secured to the jaw, the return means recalling their associated jaw backwards and therefore in a position of release of the elongated element of its gripping by the jaws. This allows a return to the starting position of the jaws made by simple, effective and economical means.
  • each jaw has at least one recess at least partially receiving the return means for example in the form of a helical spring, this recess extending substantially parallel to the inner wall of the associated base, the second end of the spring being secured to the bottom of the recess, a holding member being disposed within the spring, one end of the holding member being secured to said rear portion of the assembly before in common with the first end of the spring.
  • the direction of the return force is then substantially parallel to the inner wall of the associated base for sliding of the jaw.
  • the actuating means consists of at least one jack, the body of the jack constituting the rear body of the device and the rod of the jack being connected to the rear part of at least one jaw.
  • the jack is a double-acting cylinder comprising a first chamber having an inlet or discharge of hydraulic fluid, the admission of the fluid into the chamber causing the output of the rod out of the cylinder body and a second chamber with an inlet or outlet, the fluid inlet in this chamber causing the removal of the rod inside the cylinder body.
  • This is a preferred embodiment of the invention that allows effective adjustment of the tension of the elongate member, both in the direction of pulling the element and releasing the voltage of that element.
  • a connecting rod makes the connection of the cylinder rod with at least one jaw, this connecting rod having a respective articulation with the rod of jack and said jaw. This makes it possible to adapt said connection to follow the displacement of one or more jaws on the inclined inner wall of the associated base.
  • a single cylinder ensures the actuation of the jaws. This represents an advantageous simplification of the device according to the invention by implementing a minimum of means for effecting the displacement of the jaws.
  • the device is intended to receive as an elongate element a rope, a cable or a similar element, each inner surface of the jaws facing said elongated element having an impression adapted to the elongated element to cooperate with said element during his grip.
  • the imprint allows a better adaptation of the inner surface of the jaws to the type of elongate member to grip and adjust voltage.
  • the invention also relates to a load-bearing structure characterized in that it carries such a device for gripping and adjusting the tension of an elongated element, said device being fixed to the supporting structure by means of a mounting base , the assembly before clamping said device having a freedom of sliding relative to the fixing base in the longitudinal direction of the device, a sliding means and / or lateral support being provided between the front assembly and the mounting base.
  • the rear body of the device is fixed to the supporting structure and the front assembly can make only a displacement in the direction of the length of the device because of its attachment to a degree of freedom with the mounting base.
  • the supporting structure is a boat, the elongated element being a rope of equipment present on said boat.
  • the device D of gripping and tensioning of an elongated element E receives by its rear body 10 said elongate element E which passes through it in the direction of its length, this substantially in its part median.
  • This rear body 10 is extended by a movable front clamp assembly 101 relative to the rear body 10, the elongate member E exiting the device D by this clamping assembly 101, from the front thereof.
  • a means for actuating the jaws which is illustrated in the form of a cylinder whose body forms the rear body 10.
  • This cylinder body houses a cylinder rod 15 surrounding at a distance. Elongated element E. In operation, this rod 15 can protrude from the body 10 at the front of the latter and partially penetrate into the assembly before mobile clamping device D, as shown in FIGS. figures 2 and 3 .
  • a double-acting hydraulic cylinder with two chambers 18a and 18b each having a supply or discharge port 10a or 10b with a pressure that can be applied alternately on each side of the head of the cylinder rod 15, which causes the displacement of the rod 15 in two opposite directions out and in the body 10 of the cylinder.
  • a cylinder can also be associated with a servovalve or a proportional control valve, be supplied with compressed air or other incompressible fluid.
  • cylinder for example a single-acting cylinder both in output action and in input action, the cylinder rod then having a spring to bring it back into the retracted position. the cylinder body, this can also be done by another external means. It is also possible to use a gas cylinder whose end-of-stroke force may be greater than that of a spring cylinder or a cylinder with a telescopic rod to increase the range of adjustment of the voltage transmitted to the elongated element E as it will be seen afterwards. Alternatively, it is also possible to use at least one electric jack type screw-nut with nut driven by an electric motor.
  • the front assembly 101 mobile clamping device D gripping and tensioning adjustment is formed of two sliding bases 1 and 5 remotely surrounding the elongated element E.
  • This assembly before 101 clamping is movable relative to the rear body 10 of the device D in the direction of the length of this device D.
  • the movable front assembly 101 is in contact with the front face 14 of the rear body 10 of the device D while at the figure 3 this movable forward assembly 101 is at a distance from the rear body 10 after sliding towards the front of the device D in the direction indicated by the arrows Fav.
  • the device D of gripping and voltage adjustment of an elongate element E may be attached to a bearing structure S.
  • a bearing structure S This is not necessarily the case but can be advantageously when used in or on a mobile structure, for example a boat.
  • a fastening base 7 of the assembly before clamping 101 and the rear body 10 of the device D this fastening base 7 having fastening elements with the bearing structure S of which only one is referenced 8, these elements being regularly spaced along the fixing base 7.
  • the fixing base 7 is also visible at the figure 4 , without the bearing structure being shown in this figure.
  • the sliding base 5 of the clamping assembly 101 closest to the fastening base 7 is called the lower sliding base while the other sliding base 1 is called the upper sliding base.
  • the lower sliding base 5 has a possibility of sliding relative to the attachment base 7 to allow it to move away from or move closer to the rear body 10 in the length of the device D.
  • An embodiment possible and non-limiting of the sliding means and / or lateral support between the lower sliding fastening base 5 and the fixing base 7 will be described later with respect to this figure 4 .
  • the device D consecutively carries the gripping then the voltage adjustment of the elongate element E.
  • the device D thus allows a possibility of modifying the voltage of the element in a certain voltage range without loosening. his grip.
  • jaws 3 at least partially surrounding the elongated element E.
  • These jaws 3 can also form a unitary piece then taking the form of a jaw.
  • these jaws 3 are two in number and may be placed symmetrically with respect to the longitudinal axis of the device D to have opposite actions on the elongated element E when clamped between said jaws 3 in order to evenly distribute the gripping force around the entire circumference of element E.
  • the inner surface 3b of the jaws 3 facing the elongate element E has a cavity 12 adapted to the passage of the elongated element E which may be in the form of a rope, a cable or a 'a technical equivalent.
  • the impression 12 has a rounded shape but it can take another form suitable for gripping a specific elongated element E.
  • these jaws 3 are arranged between the sliding bases 1 and 5 of the front assembly 101 in the internal space left empty between said bases 1 and 5 of this assembly 101, each jaw 3 being interposed between one of the bases 1 or 5 and the elongate element E central to the assembly before 101 clamping.
  • the jaws 3 are supported by their part 3a on an inner wall 1a or 5a respectively of the bases 1 or 5 and can slide along said inner wall.
  • This inner wall 1a or 5a is part of a specific guide system to a given jaw 3.
  • the inner walls 1a or 5a of a sliding base 1 or 5 and form ramps and are inclined so as to be closer to each other plus they are close to the front end of the clamping assembly and therefore from the front of the device D.
  • the jaws 3 when they slide towards the front end of the device D on a respective inner wall 1a or 5a forming a ramp, approach one another. on the other side and can tighten the elongate element E between them.
  • the Fag arrow figures 1 , 2 and 4 shows the direction of an approximation of the jaws 3 in the direction of a gripping of the elongated element E
  • the arrow Fdg to figures 3 and 4 shows the direction of a distance of the jaws 3 in the direction of a release of the elongated element E.
  • the first with two jaws the second with a wall inclined on a single base and the third a guide on side plates closing.
  • each jaw 3 is secured to the front end of the cylinder rod 15 by a respective fastening element 20. It is also possible to use several cylinders, for example a jack intended for each jaw 3.
  • each fastening element 20 can be in the form of a connecting rod. articulated around a respective pivot, on the one hand, on the front end of the cylinder rod 15 and, on the other hand, on the rear part of the corresponding jaw 3.
  • the jack As regards the jack, as previously mentioned, it is advantageously double-acting and has a first chamber 18a or cylinder head side chamber with an inlet or discharge port referenced 10a in order, during an admission of hydraulic fluid in this chamber 18a, to pressure the cylinder rod head 15 and to initiate the output of the rod 15 towards the front of the device D.
  • the stem head side 15 cylinder can also be referred to as the bottom side.
  • the body 10 of the jack also has a second chamber 18b or chamber rod side cylinder with an inlet or discharge referenced 10b in order, when a hydraulic fluid inlet in this chamber 18b, to perform a pressure of reverse side of the cylinder rod head 15 previously and initiate removal of the rod 15 towards the rear of the device D.
  • At least one return means is provided, for example a return spring 16 of said jaw 3 towards the rear of the device D in the position shown in FIG. figure 1 or alternatively a gas cylinder or a technical equivalent.
  • This return spring 16 is advantageously in the form of a helical spring, each jaw 3 advantageously comprising two springs, as shown in FIG. figure 4 .
  • Each return spring 16 extends in a housing recess 4 provided on a portion of the length of the jaw 3, this recess 4 being substantially parallel to the inner wall 1a or 5a serving as a ramp of the associated base 1 or 5.
  • This return spring 16 can be associated with a holding element 17, said spring 16 being wound around the holding element 17.
  • Each spring 16 has a first end attached to a point of the associated sliding base 1 or 5 on the rear part of the front assembly 101, advantageously on a rear stop plate 13, preferably removable from its associated base 1 or 5 This is advantageously the same for its associated holding element 17.
  • the rear stop plate 13 is located on the base 1 or 5 associated with the rear thereof and thus forms its part facing the front face of the cylinder body 10 through which the rod 15 of cylinder .
  • the other end of each spring 16 is advantageously fixed to the foremost part of the corresponding holding element 17.
  • the jaws 3 are then arranged on the rearmost part of the inner walls 1a or 5a of the bases 1 or 5.
  • the inclination and the spacing between the inner walls 1a and 5a as well as the thickness of the jaws 3 are predetermined so that said jaws 3 can not then perform a gripping action of the elongated member E between them.
  • Each spring 16 associated, on the one hand, with a jaw 3 and, on the other hand, with a base 1 or 5 is not in the stretched position while its holding member 17 remains inside its recess 4 housing provided in the jaw 3.
  • This position of the device D corresponds to a zero hydraulic fluid admission through the inlet or outlet orifice 10a of the chamber 18a on the shaft head side of the cylinder body 10 or is consecutive to an evacuation of hydraulic fluid as symbolized by the arrow Fe, evacuation that can be simultaneously combined with a hydraulic fluid inlet in the chamber 18b cylinder rod side, this through the inlet or intake orifice 10b according to the arrow Fent.
  • the displacement of the elongated element E is free either towards the front or the rear of the device D.
  • the jaws 3 are on the frontmost portion of the inner walls 1a or 5a ramps respectively slidable thereon.
  • the jaws 3 have therefore been brought closer to each other because of the inclination of the inner walls 1a and 5a and act as a gripping action on the elongated element E.
  • Each spring 16 is in a stretched position which can rest position associated jaw 3 when the restoring force of the springs 16 exceeds the force exerted by the cylinder rod 15 on the jaws 3, for example consecutively to a decrease of admission of hydraulic fluid in the chamber 18a rod head side of the body 10 of the jack or a discharge of the fluid in this chamber 18a of the body 10.
  • a part of the holding element 17 of the spring protrudes outside the jaw 3 between the rear of the latter and the rear stop plate 13 of the corresponding base 1 or 5. This holding element 17 then exerts a holding force on the portion of the spring 16 output of the associated jaw 3 by stiffening said portion of the spring 16.
  • This position of the device D corresponds to an admission of hydraulic fluid through the inlet or outlet orifice 10a of the chamber 18a on the rod head side of the body 10 of the cylinder, as symbolized by the arrow F 1.
  • This hydraulic fluid inlet can be reinforced by a hydraulic fluid outlet through the inlet or outlet port 10b of the other chamber 18b rod side of the body 10 of the cylinder, as indicated by the arrow Fevt.
  • the position of the device D differs essentially from that of the figure 2 by the sliding forward of the sliding bases 1 and 5 forming the assembly before 101 movable clamping device D.
  • the jaws 3 exert on the elongate element E a force sufficient to allow the gripping of this element E.
  • the jaws 3 can no longer advance in the assembly before 101 clamping towards the front of the device D because being in abutment against a front stop plate 9 associated with each base 1 or 5, this plate 9 being preferably removable from its associated base 1 or 5.
  • the front stop plate 9 can be fixed on its specific base 1 or 5 by detachable fastening means 6, for example a screw penetrating into a threaded blind hole 11 common to a sliding base 1 or 5 and said front stop plate 9.
  • the same front stop plate 9 can be common to the two bases 1 and 5, solidarisant these two bases 1 and 5 between them.
  • Such a stop plate 9 constitutes only one of the possible fastening means of the assembly before 101 with the jaws 3.
  • Such a plate 9 may be replaced by any means of securing the assembly before 101 with the jaws 3, being understood that said means must be active after placing in the gripping position of the elongated element E by said jaws 3, as shown in FIG. figure 2 . Said jaws thus cause in their forward movement said assembly then secured, said assembly performing a pulling action towards the front of the elongate member.
  • This traction of the elongated element E serves to tension it.
  • the jack preferably double-acting, can be actuated in one direction or another to adjust the voltage applied to the elongate element E without it being unaffected by the jaws 3.
  • This is valid in a a certain voltage range corresponding to the possible front and rear displacements of the clamp assembly 101, since in the direction of the tension of the elongate member the displacement of the clamp assembly 101 is limited by the length of the rod 15 and, in the direction of a release of this tension, the displacement of the assembly is limited by the stop of the assembly before 101 clamping against the front face 14 of the body 10 of cylinder.
  • the use of a telescopic cylinder rod can be useful in some cases but it is not mandatory at all.
  • the device is independent of a bearing structure
  • means for limiting the freedom of movement of the front assembly relative to the rear body of the device so that this displacement only longitudinally to the device.
  • These means may be provided by at least one sliding bar, preferably at least two bars, carried by the rear part of the assembly before tightening and extending in the length of the device towards its rear body, said rear body comprising a receiving housing adapted to said bar in which the bar can slide with a reduced transverse clearance.
  • the figure 4 shows a cross-section of the front assembly 101 of the gripping and tensioning device D of an elongated element E along the line AA shown in FIG. figure 1 .
  • This figure shows an embodiment of the sliding between, on the one hand, the jaws 3 relative to the associated sliding bases 1 and 5 and, on the other hand, the lower sliding base 5 relative to the mounting base 7 to the supporting structure.
  • the movable front assembly 101 formed mainly of the bases 1 and 5, may have on each of its lateral sides a side closure plate 2 at least partially covering said sides.
  • Each of the closure plates 2 is detachably secured to one of the sliding bases 1 and 5 by removable fixing means 6a, for example a screw penetrating into a threaded blind hole 11 common to a sliding base 1 or 5 and to a side closure plate 2 associated.
  • a safety device To prevent an improper operation from releasing the elongated element by mistake at the moment the assembly before tightening 101 is in contact with the front face of the cylinder, it can be provided a safety device. Similarly, it can also be provided a safety to prevent the assembly before 101 movable tightening leaves the front face of the cylinder before the jaws 3 are in abutment against the front stop plate 9.
  • the present invention can be applied to all areas, where it is necessary to grip an elongate element, both metallic and other, this element can be of greater or lesser section and proceed to its tensioning. It can for example find an application in combination with a winch, for example a hydraulic winch.
  • a particularly interesting but not exclusive application of the device for gripping and adjusting the tension of an elongated element is its association with a boat as a supporting structure, for example a sailboat.
  • a device is then mainly used as attachment equipment, fixing and adjustment of the current rigging as that of the standing rigging and maneuvers.
  • it makes it possible to block and adjust the tension of a halyard of genoa, jibs, large sails or any other sails, a jib, a jib, a mainsail or any other sail by allowing a precise and powerful adjustment.
  • the device allows to release quickly and completely if necessary the sheets and / or halyards of genoa, large sails and all other sails.
  • Flying mounted on all halyards plays and other maneuvers, it releases a cleat, a pulley or a winch, while maintaining the sail properly adjusted by its halyard and / or its listening.
  • the standing rigging for example a flying backstay, after the resumption of all the slack of the maneuver, the device allows a powerful and precise adjustment at the end of the race.
  • Such a device can also be used on the ground, especially if it is necessary to attach, fix and adjust the tension of fabric or fabric.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Ocean & Marine Engineering (AREA)
  • Clamps And Clips (AREA)

Description

La présente invention concerne un dispositif d'agrippement et de réglage en tension d'un élément allongé de type câble, cordage ou élément similaire.The present invention relates to a device for gripping and tensioning adjustment of an elongated element of cable, rope or similar type.

Plus particulièrement, la présente invention concerne un dispositif d'agrippement et de réglage en tension d'un élément allongé, pour lequel, avec le même dispositif que pour son agrippement, un effort de traction exercé sur l'élément allongé permet d'effectuer sa mise en tension, la tension imposée à l'élément allongé étant aussi dans une certaine mesure réglable tout en maintenant agrippé cet élément.More particularly, the present invention relates to a device for gripping and adjusting the tension of an elongated element, for which, with the same device as for its gripping, a tensile force exerted on the elongated element makes it possible to perform its tensioning, the tension imposed on the elongated element being also to some extent adjustable while maintaining gripping this element.

Dans le domaine de la manutention de câbles, cordages ou éléments similaires, de nombreux dispositifs sont connus pour effectuer leur agrippement.In the field of the handling of cables, ropes or similar elements, many devices are known to perform their gripping.

Cet agrippement se réalise classiquement en utilisant des mâchoires ou un mors qui se referment sur l'objet allongé. Il est aussi connu d'utiliser au moins un moyen d'actionnement des mâchoires ou du mors, notamment au moins un vérin, pour réaliser cette opération d'agrippement.This gripping is achieved conventionally using jaws or a jaw that close on the elongated object. It is also known to use at least one means for actuating the jaws or the jaw, in particular at least one jack, to perform this gripping operation.

Ainsi un tel dispositif d'agrippement selon l'état de la technique est traversé longitudinalement dans sa partie médiane par l'élément allongé et présente, en général, dans le sens de sa longueur un corps arrière prolongé par un ensemble avant de serrage agissant transversalement au dispositif sur ledit élément allongé par l'intermédiaire de mâchoires entourant au moins partiellement ledit élément. Ces mâchoires sont disposées à l'intérieur dudit ensemble avant en étant mobiles longitudinalement dans ledit ensemble avant sous l'action d'au moins un moyen d'actionnement. L'ensemble avant présente au moins un système de guidage d'une mâchoire afin d'effectuer le rapprochement des mâchoires en vue de l'agrippement dudit élément à l'intérieur dudit ensemble, la distance entre mâchoires décroissant avec leur avancement vers l'avant dans ledit ensemble.Thus such a gripping device according to the state of the art is traversed longitudinally in its median part by the elongate element and has, in general, in the direction of its length a rear body extended by a transverse front clamping assembly to the device on said elongate member intermediate jaws at least partially surrounding said element. These jaws are disposed inside said assembly before being movable longitudinally in said front assembly under the action of at least one actuating means. The front assembly has at least one jaw guide system for approximating the jaws for gripping said member within said assembly, the distance between jaws decreasing with advancing forwardly in said set.

Par exemple, le document GB-A-190928294 divulgue un système de blocage de câble ou de cordage utilisant au moins un vérin, ainsi qu'un plan incliné permettant de réaliser le rapprochement ou l'éloignement de deux portions d'agrippement, chacune étant solidaire d'un vérin.For example, the document GB-A-190928294 discloses a cable or rope locking system using at least one jack, and an inclined plane for making the approximation or removal of two gripping portions, each being secured to a jack.

Le document WO-A2-2007/015642 présente un système d'agrippement de câble comprenant un bloc de coin et deux éléments de serrage coulissant par rapport au bloc de coin. Le mouvement des éléments en question permet le serrage d'un câble. Cette publication s'adresse à une sélection d'un matériau élastique pour réaliser des parties du système.The document WO-A2-2007 / 015642 has a cable gripper system comprising a corner block and two sliding clamping members with respect to the corner block. The movement of the elements in question allows the tightening of a cable. This publication is directed to a selection of an elastic material for making parts of the system.

L'objet de la présente invention est de simplifier les dispositifs existants d'agrippement d'un élément allongé tout en leur permettant aussi de réaliser une mise en tension de l'élément allongé avec possibilité de réglage de celle-ci.The object of the present invention is to simplify the existing gripping devices of an elongated element while also enabling them to tension the elongated element with the possibility of adjusting it.

Un même dispositif qui réalise agrippement d'un élément allongé et mise en tension dudit élément avec une possibilité de réglage de cette tension n'est ni décrit ni suggéré par l'état de la technique.The same device which makes gripping of an elongated element and tensioning said element with a possibility of adjusting this voltage is neither described nor suggested by the state of the art.

Pour atteindre cet objectif, il est prévu selon l'invention un dispositif d'agrippement et de réglage en tension d'un élément allongé, ledit dispositif étant traversé longitudinalement dans sa partie médiane par ledit élément allongé et présentant dans le sens de sa longueur un corps arrière, destiné à l'introduction dudit élément dans le dispositif et prolongé par un ensemble avant de serrage, destiné à la sortie dudit élément du dispositif et agissant transversalement au dispositif sur ledit élément allongé par l'intermédiaire de mâchoires entourant au moins partiellement ledit élément et disposées à l'intérieur dudit ensemble avant, lesdites mâchoires étant mobiles longitudinalement dans ledit ensemble avant sous l'action d'au moins un moyen d'actionnement, ledit ensemble avant présentant au moins un système de guidage d'une mâchoire afin d'effectuer le rapprochement des mâchoires en vue de l'agrippement dudit élément à l'intérieur dudit ensemble, la distance entre mâchoires décroissant pendant leur déplacement vers l'avant, caractérisé en ce que l'ensemble avant de serrage est mobile par rapport au corps arrière et comprend un moyen deTo achieve this objective, a device for gripping and tensioning an elongated element is provided according to the invention, said device being traversed longitudinally in its median portion by said elongated element and having in the direction of its length a rear body, intended for the introduction of said element into the device and extended by a clamping front assembly, intended for the output of said element of the device and acting transversely to the device on said elongate element by means of jaws at least partially surrounding said element and disposed within said front assembly, said jaws being movable longitudinally in said front assembly under the action of at least one actuating means, said front assembly having at least one jaw guide system for approximation of the jaws for gripping said element within said set emble, the distance between jaws decreasing during their forward movement, characterized in that the assembly before clamping is movable relative to the rear body and comprises a means of

solidarisation avec les mâchoires, actif après mise en position d'agrippement desdites mâchoires, lesdites mâchoires entraînant dans leur déplacement ledit ensemble ainsi solidarisé qui effectue alors une action de traction vers l'avant de l'élément allongé.solidarization with the jaws, active after placing in the gripping position of said jaws, said jaws causing in their displacement said assembly thus secured which then performs a pulling action towards the front of the elongate member.

L'effet technique obtenu par la présente invention est de permettre de réaliser, notamment en utlisant un même vérin ou en utilisant plus d'un vérin en fonctionnement simultané et synchronisé, deux phases successives à savoir un agrippement suivi d'une mise en tension réglable de l'élément allongé. Le dispositif selon la présente invention a l'avantage d'être nettement moins complexe que la combinaison de dispositifs de l'état de la technique réalisant l'agrippement avec un dispositif de réglage en tension de l'élément, notamment en pouvant impliquer la participation d'un nombre réduit de vérins. Le dispositif selon la présente invention a ainsi l'avantage de permettre par un seul dispositif un réglage en tension de l'objet allongé tout en le maintenant agrippé, ceci sans pour autant entraîner des moyens de commande particuliers pour la mise en oeuvre de ces deux phases.The technical effect obtained by the present invention is to make it possible to achieve, in particular by using the same jack or by using more than one jack in operation. simultaneous and synchronized, two successive phases namely a gripping followed by an adjustable tensioning of the elongated element. The device according to the present invention has the advantage of being considerably less complex than the combination of devices of the state of the art providing gripping with a voltage control device of the element, in particular by being able to involve the participation a reduced number of cylinders. The device according to the present invention thus has the advantage of allowing, by a single device, a voltage adjustment of the elongate object while keeping it gripped, this without necessarily resulting in particular control means for the implementation of these two phases.

Ceci est obtenu du fait du coulissement de la partie avant de serrage par rapport au corps arrière du dispositif, conformément à l'invention, grâce auquel coulissement on peut après agrippement d'un cordage, d'un câble ou d'un équivalent technique permettre le réglage de sa tension avec possibilité de modification de celle-ci tout en le maintenant agrippé, ceci par variation de l'effort de traction exercée sur ledit élément.This is obtained because of the sliding of the front clamping portion relative to the rear body of the device, according to the invention, thanks to which sliding can after gripping a rope, a cable or a technical equivalent allow adjusting its tension with the possibility of modifying it while holding it gripped, this by varying the tensile force exerted on said element.

Avantageusement, le moyen de solidarisation est une butée disposée à la partie avant de l'ensemble avant empêchant le déplacement vers l'avant des mâchoires par rapport audit ensemble. La butée représente en effet un mode de réalisation simple du moyen de solidarisation.Advantageously, the securing means is an abutment disposed at the front portion of the front assembly preventing the forward movement of the jaws relative to said assembly. The stop represents in fact a simple embodiment of the securing means.

Avantageusement, la butée est sous la forme d'une plaque d'arrêt disposée de manière amovible à la partie avant de l'ensemble avant de serrage. La forme et le caractère amovible de cette plaque d'arrêt sont avantageux du fait qu'ils permettent un remplacement aisé de la plaque afin de l'adapter éventuellement aux différentes formes de mâchoires utilisées ou de remédier à son usure.Advantageously, the stop is in the form of a stop plate removably disposed at the front portion of the assembly before tightening. The shape and the removable nature of this stop plate are advantageous because they allow easy replacement of the plate to possibly adapt to the different forms of jaws used or to remedy its wear.

Avantageusement, l'ensemble avant de serrage comprend deux embases disposées symétriquement par rapport à son axe longitudinal, chacune des embases étant associée à une mâchoire et au moins une embase présentant une paroi interne formant rampe pour le coulissement d'une mâchoire sur elle en étant inclinée vers l'axe longitudinal de l'ensemble avant dans la direction avant dudit ensemble, ladite paroi interne faisant partie du système de guidage d'une mâchoire. Ainsi un agrippement progressif de l'élément allongé est obtenu. Dans le cas de deux embases avec chacune une paroi inclinée, l'effort d'agrippement est avantageusement réparti de manière uniforme sur le pourtour de l'élément allongé.Advantageously, the assembly before tightening comprises two bases disposed symmetrically with respect to its longitudinal axis, each of the bases being associated with a jaw and at least one base having an internal wall forming a ramp for sliding a jaw on it while being inclined towards the longitudinal axis of the front assembly in the forward direction of said assembly, said inner wall forming part of the guiding system of a jaw. Thus a progressive grip of the elongated element is obtained. In the case of two bases each with an inclined wall, the gripping force is advantageously distributed uniformly around the periphery of the elongated element.

Avantageusement, le système de guidage présente un moyen de coulissement et/ou de maintien latéral sous la forme d'une queue d'aronde, d'un rail ou d'un chemin de roulement coopérant avec des galets de roulement ou billes, d'un film solide ou liquide de lubrification. Il est en effet souhaitable d'obtenir un bon coulissement entre mâchoire et embase correspondante ainsi qu'éventuellement une limitation d'un déplacement non souhaité de la mâchoire dans un sens latéral à l'ensemble avant de serrage.Advantageously, the guiding system has a sliding means and / or lateral support in the form of a dovetail, a rail or a race cooperating with rollers or balls, of a movie solid or liquid lubrication. It is indeed desirable to obtain a good sliding between jaw and corresponding base and possibly a limitation of undesired movement of the jaw in a lateral direction to the assembly before tightening.

Avantageusement, des moyens de rappel sont prévus entre chaque mâchoire et la partie arrière de l'ensemble avant de serrage, la première extrémité des moyens de rappel étant solidarisée à ladite partie arrière et la seconde extrémité étant solidarisée sur la mâchoire, les moyens de rappel rappelant leur mâchoire associée vers l'arrière et donc dans une position de libération de l'élément allongé de son agrippement par les mâchoires. Ceci permet un retour en position de départ des mâchoires réalisé par des moyens simples, efficaces et économiques.Advantageously, biasing means are provided between each jaw and the rear portion of the assembly before tightening, the first end of the return means being secured to said rear portion and the second end being secured to the jaw, the return means recalling their associated jaw backwards and therefore in a position of release of the elongated element of its gripping by the jaws. This allows a return to the starting position of the jaws made by simple, effective and economical means.

Préférentiellement, chaque mâchoire présente au moins un évidement recevant au moins partiellement les moyens de rappel par exemple sous forme d'un ressort hélicoïdal, cet évidement s'étendant sensiblement parallèlement à la paroi interne de l'embase associée, la seconde extrémité du ressort étant solidarisée au fond de l'évidement, un élément de maintien étant disposé à l'intérieur du ressort, une extrémité de cet élément de maintien étant solidarisée à ladite partie arrière de l'ensemble avant en commun avec la première extrémité du ressort. Dans cette forme de réalisation, la direction de l'effort de rappel est alors sensiblement parallèle à la paroi interne de l'embase associée servant au coulissement de la mâchoire.Preferably, each jaw has at least one recess at least partially receiving the return means for example in the form of a helical spring, this recess extending substantially parallel to the inner wall of the associated base, the second end of the spring being secured to the bottom of the recess, a holding member being disposed within the spring, one end of the holding member being secured to said rear portion of the assembly before in common with the first end of the spring. In this embodiment, the direction of the return force is then substantially parallel to the inner wall of the associated base for sliding of the jaw.

Avantageusement, le moyen d'actionnement consiste en au moins un vérin, le corps du vérin constituant le corps arrière du dispositif et la tige du vérin étant reliée à la partie arrière d'au moins une mâchoire. On obtient ainsi un dispositif compact avec corps de vérin intégré dans le corps arrière du dispositif ce qui permet aussi une protection du vérin.Advantageously, the actuating means consists of at least one jack, the body of the jack constituting the rear body of the device and the rod of the jack being connected to the rear part of at least one jaw. This gives a compact device with cylinder body integrated in the rear body of the device which also allows a protection of the cylinder.

Avantageusement, le vérin est un vérin double-effet comprenant une première chambre présentant un orifice d'admission ou d'évacuation de fluide hydraulique, l'admission du fluide dans cette chambre entraînant la sortie de la tige hors du corps du vérin et une seconde chambre avec un orifice d'admission ou d'évacuation, l'admission du fluide dans cette chambre entraînant le retrait de la tige à l'intérieur du corps du vérin. Ceci est une forme préférée de réalisation de l'invention qui permet un réglage efficace de la tension de l'élément allongé, aussi bien dans le sens d'une traction de l'élément que d'un relâchement de la tension de cet élément.Advantageously, the jack is a double-acting cylinder comprising a first chamber having an inlet or discharge of hydraulic fluid, the admission of the fluid into the chamber causing the output of the rod out of the cylinder body and a second chamber with an inlet or outlet, the fluid inlet in this chamber causing the removal of the rod inside the cylinder body. This is a preferred embodiment of the invention that allows effective adjustment of the tension of the elongate member, both in the direction of pulling the element and releasing the voltage of that element.

Préférentiellement, une bielle effectue la liaison de la tige de vérin avec au moins une mâchoire, cette bielle présentant une articulation respective avec la tige de vérin et ladite mâchoire. Ceci permet d'adapter ladite liaison à suivre le déplacement d'une ou des mâchoires sur la paroi interne inclinée de l'embase associée.Preferably, a connecting rod makes the connection of the cylinder rod with at least one jaw, this connecting rod having a respective articulation with the rod of jack and said jaw. This makes it possible to adapt said connection to follow the displacement of one or more jaws on the inclined inner wall of the associated base.

Préférentiellement, un unique vérin assure l'actionnement des mâchoires. Ceci représente une simplification avantageuse du dispositif selon l'invention en mettant en oeuvre un minimum de moyens pour effectuer le déplacement des mâchoires.Preferably, a single cylinder ensures the actuation of the jaws. This represents an advantageous simplification of the device according to the invention by implementing a minimum of means for effecting the displacement of the jaws.

Avantageusement, le dispositif est destiné à recevoir comme élément allongé un cordage, un câble ou un élément similaire, chaque surface interne des mâchoires en vis à vis de cet élément allongé présentant une empreinte adaptée à l'élément allongé pour coopérer avec ledit élément lors de son agrippement. L'empreinte permet une meilleure adaptation de la surface interne des mâchoires au type d'élément allongé à agripper et à régler en tension.Advantageously, the device is intended to receive as an elongate element a rope, a cable or a similar element, each inner surface of the jaws facing said elongated element having an impression adapted to the elongated element to cooperate with said element during his grip. The imprint allows a better adaptation of the inner surface of the jaws to the type of elongate member to grip and adjust voltage.

L'invention concerne aussi une structure portante caractérisée en ce qu'elle porte un tel dispositif d'agrippement et de réglage en tension d'un élément allongé, ledit dispositif étant fixé à la structure portante par l'intermédiaire d'une embase de fixation, l'ensemble avant de serrage dudit dispositif présentant une liberté de coulissement par rapport à l'embase de fixation dans le sens longitudinal du dispositif, un moyen de coulissement et/ou de maintien latéral étant prévu entre ensemble avant et embase de fixation. Ainsi, le corps arrière du dispositif est fixé à la structure portante et l'ensemble avant ne peut effectuer qu'un déplacement dans le sens de la longueur du dispositif du fait de sa fixation à un degré de liberté avec l'embase de fixation.The invention also relates to a load-bearing structure characterized in that it carries such a device for gripping and adjusting the tension of an elongated element, said device being fixed to the supporting structure by means of a mounting base , the assembly before clamping said device having a freedom of sliding relative to the fixing base in the longitudinal direction of the device, a sliding means and / or lateral support being provided between the front assembly and the mounting base. Thus, the rear body of the device is fixed to the supporting structure and the front assembly can make only a displacement in the direction of the length of the device because of its attachment to a degree of freedom with the mounting base.

Avantageusement, la structure portante est un bateau, l'élément allongé étant un cordage d'un équipement présent sur ledit bateau.Advantageously, the supporting structure is a boat, the elongated element being a rope of equipment present on said boat.

D'autres caractéristiques, buts et avantages de la présente invention apparaîtront à la lecture de la description détaillée qui va suivre et au regard des dessins annexés donnés à titre d'exemple non limitatif et sur lesqüels :

  • la figure 1 est une coupe longitudinale du dispositif d'agrippement et de réglage en tension d'un élément allongé conformément à la présente invention, ledit dispositif étant montré dans une première position dans laquelle aucun effort d'agrippement n'est effectué sur l'élément allongé,
  • la figure 2 est une coupe longitudinale du dispositif d'agrippement et de réglage en tension d'un élément allongé conformément à la présente invention, ledit dispositif étant montré dans une seconde position dans laquelle un effort d'agrippement est effectué sur l'élément allongé sans effort de traction sur celui-ci,
  • la figure 3 est une coupe longitudinale du dispositif d'agrippement et de réglage en tension d'un élément allongé conformément à la présente invention, ledit dispositif étant montré dans une troisième position dans laquelle un effort de traction est effectué sur l'élément allongé préalablement agrippé pour sa mise sous tension,
  • la figure 4 est une coupe transversale, selon la ligne A-A montrée à la figure 1, du dispositif d'agrippement et de réglage en tension conformément à la présente invention, cette figure illustrant un mode de réalisation possible mais non exclusif des moyens de coulissement et/ou de maintien latéral entre, d'une part, mâchoires d'agrippement et embase associée et, d'autre part, une des embases de l'ensemble avant et une embase de fixation à une structure portante.
Other characteristics, objects and advantages of the present invention will appear on reading the detailed description which follows and with reference to the appended drawings given by way of non-limiting example and on which:
  • the figure 1 is a longitudinal section of the gripping and tensioning device of an elongate member according to the present invention, said device being shown in a first position in which no gripping force is applied to the elongate member,
  • the figure 2 is a longitudinal section of the gripping and tensioning device of an elongate member according to the present invention, said device being shown in a second position in which a gripping force is made on the elongated member without effort of pull on it,
  • the figure 3 is a longitudinal section of the gripping and tensioning device of an elongate member in accordance with the present invention, said device being shown in a third position in which a tensile force is made on the elongate member previously gripped for its power on,
  • the figure 4 is a cross-section, along line AA shown at figure 1 , of the gripping and tensioning device according to the present invention, this figure illustrating a possible but not exclusive embodiment of the sliding means and / or lateral holding between, on the one hand, gripping jaws and associated base and, secondly, one of the bases of the front assembly and a mounting base to a supporting structure.

En se référant aux figures 1 à 4, le dispositif D d'agrippement et de réglage en tension d'un élément allongé E, conformément à la présente invention, reçoit par son corps arrière 10 ledit élément allongé E qui le traverse dans le sens de sa longueur, ceci sensiblement dans sa partie médiane. Ce corps arrière 10 est prolongé par un ensemble avant 101de serrage mobile par rapport au corps arrière 10, l'élément allongé E sortant du dispositif D par cet ensemble avant 101 de serrage, par l'avant de celui-ci.Referring to Figures 1 to 4 , the device D of gripping and tensioning of an elongated element E, according to the present invention, receives by its rear body 10 said elongate element E which passes through it in the direction of its length, this substantially in its part median. This rear body 10 is extended by a movable front clamp assembly 101 relative to the rear body 10, the elongate member E exiting the device D by this clamping assembly 101, from the front thereof.

Aux figures 1 à 3, sans que cela soit limitatif, il est prévu un moyen d'actionnement des mâchoires qui est illustré sous la forme d'un vérin dont le corps forme le corps arrière 10. Ce corps de vérin loge une tige 15 de vérin entourant à distance l'élément allongé E. En fonctionnement, cette tige 15 peut saillir du corps 10 à l'avant de celui-ci et pénétrer partiellement dans l'ensemble avant 101 mobile de serrage du dispositif D, comme montré aux figures 2 et 3.To the Figures 1 to 3 Without limitation, there is provided a means for actuating the jaws which is illustrated in the form of a cylinder whose body forms the rear body 10. This cylinder body houses a cylinder rod 15 surrounding at a distance. Elongated element E. In operation, this rod 15 can protrude from the body 10 at the front of the latter and partially penetrate into the assembly before mobile clamping device D, as shown in FIGS. figures 2 and 3 .

Il est aussi possible d'utiliser plusieurs vérins à la place d'un unique vérin.It is also possible to use several cylinders in place of a single cylinder.

Aux figures 1 à 3, il est représenté pour l'actionnement des mâchoires 3 un vérin hydraulique à double effet avec deux chambres 18a et 18b présentant chacune un orifice d'alimentation ou d'évacuation 10a ou 10b avec une pression pouvant être appliquée alternativement de chaque côté de la tête de la tige 15 de vérin, ce qui entraîne le déplacement de la tige 15 dans deux sens opposés hors et dans le corps 10 du vérin. Un tel vérin peut être aussi associé à une servovalve ou à un distributeur à commande proportionnelle, être alimenté en air comprimé ou en un autre fluide incompressible.To the Figures 1 to 3 , it is shown for the actuation of the jaws 3 a double-acting hydraulic cylinder with two chambers 18a and 18b each having a supply or discharge port 10a or 10b with a pressure that can be applied alternately on each side of the head of the cylinder rod 15, which causes the displacement of the rod 15 in two opposite directions out and in the body 10 of the cylinder. Such a cylinder can also be associated with a servovalve or a proportional control valve, be supplied with compressed air or other incompressible fluid.

Il est évident que d'autres types de vérin peuvent être utilisés, par exemple un vérin à simple effet aussi bien en action de sortie qu'en action d'entrée, la tige de vérin comportant alors un ressort pour la ramener en position rentrée dans le corps du vérin, ceci pouvant être aussi fait par un autre moyen extérieur. Il est aussi possible d'utiliser un vérin à gaz dont la force en fin de course peut être supérieure à celui d'un vérin à ressort ou un vérin à tige télescopique pour accroître la plage de réglage de la tension transmise à l'élément allongé E comme il sera vu par la suite. En alternative, il est aussi possible d'utiliser au moins un vérin électrique du type système vis-écrou avec écrou entraîné par un moteur électrique.It is obvious that other types of cylinder can be used, for example a single-acting cylinder both in output action and in input action, the cylinder rod then having a spring to bring it back into the retracted position. the cylinder body, this can also be done by another external means. It is also possible to use a gas cylinder whose end-of-stroke force may be greater than that of a spring cylinder or a cylinder with a telescopic rod to increase the range of adjustment of the voltage transmitted to the elongated element E as it will be seen afterwards. Alternatively, it is also possible to use at least one electric jack type screw-nut with nut driven by an electric motor.

L'ensemble avant 101 mobile de serrage du dispositif D d'agrippement et de réglage en tension est formé de deux embases coulissantes 1 et 5 entourant à distance l'élément allongé E. Cet ensemble avant 101 de serrage est mobile par rapport au corps arrière 10 du dispositif D dans le sens de la longueur de ce dispositif D. Par exemple, à la figure 1, l'ensemble avant 101 mobile de serrage est en contact contre la face avant 14 du corps arrière 10 du dispositif D tandis qu'à la figure 3, cet ensemble avant 101 mobile de serrage se trouve à distance du corps arrière 10 après avoir coulissé vers l'avant du dispositif D dans la direction indiquée par les flèches Fav.The front assembly 101 mobile clamping device D gripping and tensioning adjustment is formed of two sliding bases 1 and 5 remotely surrounding the elongated element E. This assembly before 101 clamping is movable relative to the rear body 10 of the device D in the direction of the length of this device D. For example, at the figure 1 the movable front assembly 101 is in contact with the front face 14 of the rear body 10 of the device D while at the figure 3 this movable forward assembly 101 is at a distance from the rear body 10 after sliding towards the front of the device D in the direction indicated by the arrows Fav.

Comme montré aux figures 1 à 3, le dispositif D d'agrippement et de réglage en tension d'un élément allongé E peut être fixé à une structure portante S. Ceci n'est pas forcément le cas mais peut l'être avantageusement lors d'une utilisation dans ou sur une structure mobile, par exemple un bateau. Aux figures 1 à 3, il est utilisé une embase de fixation 7 de l'ensemble avant 101 de serrage et du corps arrière 10 du dispositif D, cette embase de fixation 7 présentant des éléments de fixation avec la structure portante S dont un seul est référencée 8, ces éléments étant régulièrement espacés le long de l'embase de fixation 7. L'embase de fixation 7 est aussi visible à la figure 4, sans que la structure portante ne soit montrée à cette figure.As shown in Figures 1 to 3 , the device D of gripping and voltage adjustment of an elongate element E may be attached to a bearing structure S. This is not necessarily the case but can be advantageously when used in or on a mobile structure, for example a boat. To the Figures 1 to 3 , it is used a fastening base 7 of the assembly before clamping 101 and the rear body 10 of the device D, this fastening base 7 having fastening elements with the bearing structure S of which only one is referenced 8, these elements being regularly spaced along the fixing base 7. The fixing base 7 is also visible at the figure 4 , without the bearing structure being shown in this figure.

En référence aux figures 1 à 4, l'embase coulissante 5 de l'ensemble avant 101 de serrage la plus proche de l'embase de fixation 7 est dénommée embase coulissante inférieure tandis que l'autre embase coulissante 1 est dénommée embase coulissante supérieure. Comme particulièrement visible à la figure 4, l'embase coulissante inférieure 5 présente une possibilité de coulissement par rapport à l'embase de fixation 7 afin de lui permettre un mouvement d'éloignement ou de rapprochement par rapport au corps arrière 10 dans la longueur du dispositif D. Un mode de réalisation possible et non limitatif du moyen de coulissement et/ou de maintien latéral entre l'embase de fixation coulissante inférieure 5 et l'embase de fixation 7 sera ultérieurement décrit en regard de cette figure 4.With reference to Figures 1 to 4 , the sliding base 5 of the clamping assembly 101 closest to the fastening base 7 is called the lower sliding base while the other sliding base 1 is called the upper sliding base. As particularly visible at the figure 4 , the lower sliding base 5 has a possibility of sliding relative to the attachment base 7 to allow it to move away from or move closer to the rear body 10 in the length of the device D. An embodiment possible and non-limiting of the sliding means and / or lateral support between the lower sliding fastening base 5 and the fixing base 7 will be described later with respect to this figure 4 .

Conformément à la présente invention, le dispositif D réalise consécutivement l'agrippement puis le réglage en tension de l'élément allongé E. Le dispositif D permet ainsi une possibilité de modification de la tension de l'élément dans une certaine gamme de tension sans relâcher son agrippement.According to the present invention, the device D consecutively carries the gripping then the voltage adjustment of the elongate element E. The device D thus allows a possibility of modifying the voltage of the element in a certain voltage range without loosening. his grip.

Cet agrippement est réalisé par des mâchoires 3, entourant au moins partiellement l'élément allongé E. Ces mâchoires 3 peuvent aussi former une pièce unitaire prenant alors la forme d'un mors. Avantageusement, ces mâchoires 3 sont au nombre de deux et peuvent être placées symétriquement par rapport à l'axe longitudinal du dispositif D pour avoir des actions opposées sur l'élément allongé E lors de son serrage entre lesdites mâchoires 3 afin de répartir uniformément l'effort d'agrippement sur tout le pourtour de l'élément E.This gripping is achieved by jaws 3, at least partially surrounding the elongated element E. These jaws 3 can also form a unitary piece then taking the form of a jaw. Advantageously, these jaws 3 are two in number and may be placed symmetrically with respect to the longitudinal axis of the device D to have opposite actions on the elongated element E when clamped between said jaws 3 in order to evenly distribute the gripping force around the entire circumference of element E.

A la figure 4, il est visible que la surface interne 3b des mâchoires 3 en regard de l'élément allongé E présente une empreinte 12 adaptée au passage de l'élément allongé E qui peut être sous la forme d'un cordage, d'un câble ou d'un équivalent technique. A la figure 4, l'empreinte 12 présente une forme arrondie mais elle peut revêtir une autre forme appropriée à l'agrippement d'un élément allongé E spécifique.To the figure 4 , it is visible that the inner surface 3b of the jaws 3 facing the elongate element E has a cavity 12 adapted to the passage of the elongated element E which may be in the form of a rope, a cable or a 'a technical equivalent. To the figure 4 , the impression 12 has a rounded shape but it can take another form suitable for gripping a specific elongated element E.

D'une part, ces mâchoires 3 sont disposées entre les embases coulissantes 1 et 5 de l'ensemble avant 101 dans l'espace interne laissée vide entre lesdites embases 1 et 5 de cet ensemble 101, chaque mâchoire 3 s'intercalant entre une des embases 1 ou 5 et l'élément allongé E central à l'ensemble avant 101 de serrage. Comme montré à la figure 1, les mâchoires 3 sont en appui par leur partie 3a sur une paroi interne 1 a ou 5a respective des embases 1 ou 5 et peuvent coulisser le long de ladite paroi interne. Cette paroi interne 1a ou 5a fait partie d'un système de guidage spécifique à une mâchoire 3 donnée.On the one hand, these jaws 3 are arranged between the sliding bases 1 and 5 of the front assembly 101 in the internal space left empty between said bases 1 and 5 of this assembly 101, each jaw 3 being interposed between one of the bases 1 or 5 and the elongate element E central to the assembly before 101 clamping. As shown in figure 1 , the jaws 3 are supported by their part 3a on an inner wall 1a or 5a respectively of the bases 1 or 5 and can slide along said inner wall. This inner wall 1a or 5a is part of a specific guide system to a given jaw 3.

Comme montré aux figures 1 à 3, les parois internes 1 a ou 5a d'une embase coulissante 1 ou 5 forment ainsi des rampes et sont inclinées de façon à se rapprocher l'une de l'autre plus elles sont proches de l'extrémité avant de l'ensemble de serrage et donc de l'avant du dispositif D. De ce fait, il s'ensuit que les mâchoires 3, quand elles coulissent vers l'extrémité avant du dispositif D sur une paroi interne 1 a ou 5a respective formant rampe se rapprochent l'une de l'autre et peuvent serrer l'élément allongé E entre elles. La flèche Fag aux figures 1, 2 et 4 montre la direction d'un rapprochement des mâchoires 3 dans le sens d'un agrippement de l'élément allongé E, tandis que la flèche Fdg aux figures 3 et 4 montre la direction d'un éloignement des mâchoires 3 dans le sens d'une libération de l'élément allongé E. Ces mouvements de rapprochement et d'éloignement s'effectuent lors d'un coulissement des mâchoires 3 sur les parois internes 1 a ou 5a des embases coulissantes 1 ou 5, respectivement vers l'avant ou vers l'arrière du dispositif D.As shown in Figures 1 to 3 , the inner walls 1a or 5a of a sliding base 1 or 5 and form ramps and are inclined so as to be closer to each other plus they are close to the front end of the clamping assembly and therefore from the front of the device D. As a result, it follows that the jaws 3, when they slide towards the front end of the device D on a respective inner wall 1a or 5a forming a ramp, approach one another. on the other side and can tighten the elongate element E between them. The Fag arrow figures 1 , 2 and 4 shows the direction of an approximation of the jaws 3 in the direction of a gripping of the elongated element E, while the arrow Fdg to figures 3 and 4 shows the direction of a distance of the jaws 3 in the direction of a release of the elongated element E. These movements of approximation and removal occur during a sliding of the jaws 3 on the inner walls 1a or 5a of the sliding bases 1 or 5 respectively towards the front or towards the rear of the device D.

Alternativement, il est possible de prévoir une paroi interne inclinée sur une seule embase coulissante, mode de réalisation qui n'est pas montré aux figures. Dans ce cas une seule mâchoire est rapprochée de l'autre ou des autres mâchoires quand il y en a plus de deux pendant le mouvement de déplacement vers l'avant des mâchoires, ce rapprochement s'effectuant lors du coulissement de ladite mâchoire sur la paroi interne de l'embase associée.Alternatively, it is possible to provide an inclined inner wall on a single sliding base, an embodiment that is not shown in the figures. In this case, only one jaw is brought closer to the other jaw or jaws when there are more than two jaws during the movement of the jaws forward, this coming together during the sliding of said jaw on the wall internal of the associated base.

Ainsi, il peut y avoir au moins trois formes de réalisation, la première avec deux mâchoires, la seconde avec une paroi inclinée sur une seule embase et la troisième un guidage sur des plaques latérales de fermeture.Thus, there can be at least three embodiments, the first with two jaws, the second with a wall inclined on a single base and the third a guide on side plates closing.

D'autre part, comme montré aux figures 1 à 3, la portion arrière de chaque mâchoire 3 est solidarisée avec l'extrémité avant de la tige 15 de vérin par un élément de solidarisation 20 respectif. Il est aussi possible d'utiliser plusieurs vérins, par exemple un vérin destiné à chaque mâchoire 3.On the other hand, as shown in Figures 1 to 3 , the rear portion of each jaw 3 is secured to the front end of the cylinder rod 15 by a respective fastening element 20. It is also possible to use several cylinders, for example a jack intended for each jaw 3.

Comme les mâchoires 3 peuvent se rapprocher ou s'éloigner, il est avantageux que les éléments de solidarisation 20 présentent une liberté de mouvement dans un sens transversal au dispositif D. Avantageusement, chaque élément de solidarisation 20 peut être sous la forme d'une bielle articulée autour d'un pivot respectif, d'une part, sur l'extrémité avant de la tige 15 de vérin et, d'autre part, sur la partie arrière de la mâchoire 3 correspondante.As the jaws 3 can move closer or further away, it is advantageous for the securing elements 20 to have freedom of movement in a direction transverse to the device D. Advantageously, each fastening element 20 can be in the form of a connecting rod. articulated around a respective pivot, on the one hand, on the front end of the cylinder rod 15 and, on the other hand, on the rear part of the corresponding jaw 3.

En ce qui concerne le vérin, comme précédemment mentionné, celui-ci est avantageusement à double effet et présente une première chambre 18a ou chambre côté tête de vérin avec un orifice d'admission ou d'évacuation référencé 10a afin, lors d'une admission de fluide hydraulique dans cette chambre 18a, d'effectuer une pression sur la tête de tige 15 de vérin et d'initier la sortie de la tige 15 vers l'avant du dispositif D. Il est à noter que le côté tête de tige 15 de vérin peut aussi être appelé sous la dénomination côté fond.As regards the jack, as previously mentioned, it is advantageously double-acting and has a first chamber 18a or cylinder head side chamber with an inlet or discharge port referenced 10a in order, during an admission of hydraulic fluid in this chamber 18a, to pressure the cylinder rod head 15 and to initiate the output of the rod 15 towards the front of the device D. It should be noted that the stem head side 15 cylinder can also be referred to as the bottom side.

Le corps 10 du vérin présente aussi une seconde chambre 18b ou chambre côté tige de vérin avec un orifice d'admission ou d'évacuation référencé 10b afin, lors d'une admission de fluide hydraulique dans cette chambre 18b, d'effectuer une pression du côté inverse de la tête de tige 15 de vérin que précédemment et d'initier le retrait de la tige 15 vers l'arrière du dispositif D.The body 10 of the jack also has a second chamber 18b or chamber rod side cylinder with an inlet or discharge referenced 10b in order, when a hydraulic fluid inlet in this chamber 18b, to perform a pressure of reverse side of the cylinder rod head 15 previously and initiate removal of the rod 15 towards the rear of the device D.

Lorsque la tige 15 de vérin est sortie du corps 10 de vérin, elle pousse sur les mâchoires 3 qui coulissent vers l'avant du dispositif D et inversement en cas de rétraction de la tige 15 de vérin à l'intérieur du corps 10.When the cylinder rod 15 is released from the cylinder body 10, it pushes on the jaws 3 which slide towards the front of the device D and vice versa in case of retraction of the cylinder rod 15 inside the body 10.

Pour chaque mâchoire 3, il est prévu au moins des moyens de rappel, par exemple un ressort de rappel 16 de ladite mâchoire 3 vers l'arrière du dispositif D dans la position montrée à la figure 1 ou en alternative un vérin à gaz ou un équivalent technique. Ce ressort de rappel 16 est avantageusement sous forme d'un ressort hélicoïdal, chaque mâchoire 3 comprenant avantageusement deux ressorts, comme montré à la figure 4. Chaque ressort de rappel 16 s'étend dans un évidement 4 de logement prévu sur une portion de la longueur de la mâchoire 3, cet évidement 4 étant sensiblement parallèle à la paroi interne 1 a ou 5a servant de rampe de l'embase associée 1 ou 5. Ce ressort de rappel 16 peut être associé avec un élément de maintien 17, ledit ressort 16 étant enroulé autour de l'élément de maintien 17.For each jaw 3, at least one return means is provided, for example a return spring 16 of said jaw 3 towards the rear of the device D in the position shown in FIG. figure 1 or alternatively a gas cylinder or a technical equivalent. This return spring 16 is advantageously in the form of a helical spring, each jaw 3 advantageously comprising two springs, as shown in FIG. figure 4 . Each return spring 16 extends in a housing recess 4 provided on a portion of the length of the jaw 3, this recess 4 being substantially parallel to the inner wall 1a or 5a serving as a ramp of the associated base 1 or 5. This return spring 16 can be associated with a holding element 17, said spring 16 being wound around the holding element 17.

Chaque ressort 16 présente une première extrémité fixée à un point de l'embase coulissante associée 1 ou 5 sur la partie arrière de l'ensemble avant 101, avantageusement sur une plaque d'arrêt arrière 13, préférentiellement amovible de son embase associée 1 ou 5. Il en va avantageusement de même pour son élément de maintien 17 associé. La plaque d'arrêt arrière 13, se trouve sur l'embase 1 ou 5 associée à l'arrière de celle-ci et forme ainsi sa partie en regard de la face avant du corps 10 de vérin par laquelle sort la tige 15 de vérin. L'autre extrémité de chaque ressort 16 est avantageusement fixée à la partie la plus en avant de l'élément de maintien 17 correspondant.Each spring 16 has a first end attached to a point of the associated sliding base 1 or 5 on the rear part of the front assembly 101, advantageously on a rear stop plate 13, preferably removable from its associated base 1 or 5 This is advantageously the same for its associated holding element 17. The rear stop plate 13 is located on the base 1 or 5 associated with the rear thereof and thus forms its part facing the front face of the cylinder body 10 through which the rod 15 of cylinder . The other end of each spring 16 is advantageously fixed to the foremost part of the corresponding holding element 17.

A la figure 1, les mâchoires 3 sont alors disposées sur la partie la plus arrière des parois internes 1a ou 5a des embases 1 ou 5. L'inclinaison et l'espacement entre parois internes 1a et 5a de même que l'épaisseur des mâchoires 3 sont prédéterminés afin que lesdites mâchoires 3 ne puissent pas alors effectuer une action d'agrippement de l'élément allongé E se trouvant entre elles. Chaque ressort 16 associé, d'une part, à une mâchoire 3 et, d'autre part, à une embase 1 ou 5 n'est pas en position étirée tandis que son élément de maintien 17 reste à l'intérieur de son évidement 4 de logement prévu dans la mâchoire 3.To the figure 1 , the jaws 3 are then arranged on the rearmost part of the inner walls 1a or 5a of the bases 1 or 5. The inclination and the spacing between the inner walls 1a and 5a as well as the thickness of the jaws 3 are predetermined so that said jaws 3 can not then perform a gripping action of the elongated member E between them. Each spring 16 associated, on the one hand, with a jaw 3 and, on the other hand, with a base 1 or 5 is not in the stretched position while its holding member 17 remains inside its recess 4 housing provided in the jaw 3.

Cette position du dispositif D correspond à une admission de fluide hydraulique nulle par l'orifice 10a d'admission ou d'évacuation de la chambre 18a côté tête de tige du corps 10 du vérin ou est consécutive à une évacuation de fluide hydraulique comme symbolisé par la flèche Fe, évacuation qui peut être simultanément combinée avec une admission de fluide hydraulique dans la chambre 18b côté tige de vérin, ceci par l'orifice 10b d'admission ou d'évacuation selon la flèche Fent. Dans cette position, le déplacement de l'élément allongé E est libre aussi bien vers l'avant ou l'arrière du dispositif D.This position of the device D corresponds to a zero hydraulic fluid admission through the inlet or outlet orifice 10a of the chamber 18a on the shaft head side of the cylinder body 10 or is consecutive to an evacuation of hydraulic fluid as symbolized by the arrow Fe, evacuation that can be simultaneously combined with a hydraulic fluid inlet in the chamber 18b cylinder rod side, this through the inlet or intake orifice 10b according to the arrow Fent. In this position, the displacement of the elongated element E is free either towards the front or the rear of the device D.

A la figure 2, les mâchoires 3 se trouvent sur la portion la plus avant des parois internes 1a ou 5a formant rampes après coulissement respectif sur celles-ci. Les mâchoires 3 ont donc été rapprochées l'une de l'autre du fait de l'inclinaison des parois internes 1a et 5a et effectuent une action d'agrippement sur l'élément allongé E. Chaque ressort 16 est en position étirée pouvant rappeler en position de repos la mâchoire 3 associée quand la force de rappel des ressorts 16 excède la force exercée par la tige 15 de vérin sur les mâchoires 3, par exemple consécutivement à une baisse d'admission de fluide hydraulique dans la chambre 18a côté tête de tige du corps 10 du vérin ou à une évacuation du fluide dans cette chambre 18a du corps 10.To the figure 2 , the jaws 3 are on the frontmost portion of the inner walls 1a or 5a ramps respectively slidable thereon. The jaws 3 have therefore been brought closer to each other because of the inclination of the inner walls 1a and 5a and act as a gripping action on the elongated element E. Each spring 16 is in a stretched position which can rest position associated jaw 3 when the restoring force of the springs 16 exceeds the force exerted by the cylinder rod 15 on the jaws 3, for example consecutively to a decrease of admission of hydraulic fluid in the chamber 18a rod head side of the body 10 of the jack or a discharge of the fluid in this chamber 18a of the body 10.

Une partie de l'élément de maintien 17 du ressort fait saillie à l'extérieur de la mâchoire 3 entre l'arrière de celle-ci et la plaque d'arrêt arrière 13 de l'embase correspondante 1 ou 5. Cet élément de maintien 17 exerce alors un effort de maintien sur la partie du ressort 16 sortie de la mâchoire associée 3 en rigidifiant ladite partie du ressort 16.A part of the holding element 17 of the spring protrudes outside the jaw 3 between the rear of the latter and the rear stop plate 13 of the corresponding base 1 or 5. This holding element 17 then exerts a holding force on the portion of the spring 16 output of the associated jaw 3 by stiffening said portion of the spring 16.

Cette position du dispositif D correspond à une admission de fluide hydraulique par l'orifice 10a d'admission ou d'évacuation de la chambre 18a côté tête de tige du corps 10 du vérin, comme symbolisé par la flèche Fa. Cette admission de fluide hydraulique peut être renforcée par une évacuation de fluide hydraulique par l'orifice 10b d'admission ou d'évacuation de l'autre chambre 18b côté tige du corps 10 du vérin, comme indiqué par la flèche Fevt.This position of the device D corresponds to an admission of hydraulic fluid through the inlet or outlet orifice 10a of the chamber 18a on the rod head side of the body 10 of the cylinder, as symbolized by the arrow F 1. This hydraulic fluid inlet can be reinforced by a hydraulic fluid outlet through the inlet or outlet port 10b of the other chamber 18b rod side of the body 10 of the cylinder, as indicated by the arrow Fevt.

Particulièrement dans cette position, il peut être judicieux de prévoir des moyens de solidarisation temporaire de l'ensemble avant 101 de serrage contre la face avant 14 du corps arrière 10 du dispositif D afin que cet ensemble avant 101 mobile ne se déplace pas intempestivement vers l'avant, ces moyens n'étant pas représentés aux figures mais pouvant être sous la forme de ressorts de rappel. Ainsi, il est avantageux de prévoir un système de sécurité pour éviter le largage de l'élément allongé par erreur.Particularly in this position, it may be wise to provide means for temporarily securing the assembly before tightening 101 against the front face 14 of the rear body 10 of the device D so that the assembly before 101 mobile does not move unexpectedly to the before, these means not being shown in the figures but may be in the form of return springs. Thus, it is advantageous to provide a security system to prevent the release of the elongated element by mistake.

En ce qui concerne la figure 3, la position du dispositif D diffère essentiellement de celle de la figure 2 par le coulissement vers l'avant des embases coulissantes 1 et 5 formant l'ensemble avant 101 mobile de serrage du dispositif D.With regard to the figure 3 , the position of the device D differs essentially from that of the figure 2 by the sliding forward of the sliding bases 1 and 5 forming the assembly before 101 movable clamping device D.

Dans cette position, les mâchoires 3 exercent sur l'élément allongé E une force suffisante pour permettre l'agrippement de cet élément E. Les mâchoires 3 ne peuvent plus avancer dans l'ensemble avant 101 de serrage vers l'avant du dispositif D car étant en butée contre une plaque d'arrêt avant 9 associée à chaque embase 1 ou 5, cette plaque 9 étant préférentiellement amovible de son embase associée 1 ou 5. La plaque d'arrêt avant 9 peut être fixée sur son embase spécifique 1 ou 5 par des moyens de fixation amovible 6, par exemple une vis pénétrant dans un trou borgne 11 taraudé commun à une embase coulissante 1 ou 5 et ladite plaque d'arrêt avant 9. Avantageusement, une même plaque d'arrêt avant 9 peut être commune aux deux embases 1 et 5, solidarisant ces deux embases 1 et 5 entre elles.In this position, the jaws 3 exert on the elongate element E a force sufficient to allow the gripping of this element E. The jaws 3 can no longer advance in the assembly before 101 clamping towards the front of the device D because being in abutment against a front stop plate 9 associated with each base 1 or 5, this plate 9 being preferably removable from its associated base 1 or 5. The front stop plate 9 can be fixed on its specific base 1 or 5 by detachable fastening means 6, for example a screw penetrating into a threaded blind hole 11 common to a sliding base 1 or 5 and said front stop plate 9. Advantageously, the same front stop plate 9 can be common to the two bases 1 and 5, solidarisant these two bases 1 and 5 between them.

Une telle plaque d'arrêt 9 constitue seulement un des moyens de solidarisation possibles de l'ensemble avant 101 avec les mâchoires 3. Une telle plaque 9 peut être remplacée par tout moyen de solidarisation de l'ensemble avant 101 avec les mâchoires 3, étant entendu que ledit moyen doit être actif après mise en position d'agrippement de l'élément allongé E par lesdites mâchoires 3, comme montré à la figure 2. Lesdites mâchoires entraînent ainsi dans leur déplacement vers l'avant ledit ensemble alors solidarisé, ledit ensemble effectuant une action de traction vers l'avant de l'élément allongé.Such a stop plate 9 constitutes only one of the possible fastening means of the assembly before 101 with the jaws 3. Such a plate 9 may be replaced by any means of securing the assembly before 101 with the jaws 3, being understood that said means must be active after placing in the gripping position of the elongated element E by said jaws 3, as shown in FIG. figure 2 . Said jaws thus cause in their forward movement said assembly then secured, said assembly performing a pulling action towards the front of the elongate member.

Quand une force est toujours exercée sur la tige 15 de vérin pour la pousser vers l'avant du dispositif D dans le sens des flèches Fav, les mâchoires 3 ne peuvent plus se déplacer vers l'avant de l'ensemble avant 101 car étant en butée contre la plaque d'arrêt avant 9. C'est alors tout l'ensemble avant 101 mobile de serrage du dispositif D qui est déplacé vers l'avant en étant entraîné par les mâchoires 3 poussées par le moyen d'actionnement, par exemple sous la forme d'un vérin double effet comme montré à la figure 3. Il s'ensuit une traction sur l'élément allongé E alors solidarisé avec cet ensemble avant 101 de serrage du fait de l'agrippement préalable dudit élément E par les mâchoires 3 comme illustré à la figure 2.When a force is always exerted on the cylinder rod 15 to push it towards the front of the device D in the direction of the arrows Fav, the jaws 3 can no longer move towards the front of the assembly before 101 because being in stop against the front stop plate 9. It is then all the assembly before 101 movable clamping device D which is moved forward by being driven by the jaws 3 pushed by the actuating means, for example in the form of a double-acting cylinder as shown in figure 3 . It follows a traction on the elongated element E then secured to the assembly before 101 clamping due to the prior gripping of said element E by the jaws 3 as shown in FIG. figure 2 .

Cette traction de l'élément allongé E sert à sa mise en tension. Dans cette position, le vérin, avantageusement à double effet, peut être actionné dans un sens ou un autre pour régler la tension appliquée à l'élément allongé E sans que celui-ci ne soit désagrippé par les mâchoires 3. Ceci est valable dans une certaine gamme de tension correspondant aux déplacements avant et arrière possibles de l'ensemble avant 101 de serrage, étant donné que, dans le sens de la tension de l'élément allongé, le déplacement de l'ensemble avant 101 de serrage est limité par la longueur de la tige 15 et, dans le sens d'un relâchement de cette tension, le déplacement de l'ensemble est limité par la butée de l'ensemble avant 101 de serrage contre la face avant 14 du corps 10 de vérin. Comme précédemment mentionné, l'emploi d'une tige télescopique de vérin peut s'avérer dans certains cas utile mais ce n'est pas du tout obligatoire.This traction of the elongated element E serves to tension it. In this position, the jack, preferably double-acting, can be actuated in one direction or another to adjust the voltage applied to the elongate element E without it being unaffected by the jaws 3. This is valid in a a certain voltage range corresponding to the possible front and rear displacements of the clamp assembly 101, since in the direction of the tension of the elongate member the displacement of the clamp assembly 101 is limited by the length of the rod 15 and, in the direction of a release of this tension, the displacement of the assembly is limited by the stop of the assembly before 101 clamping against the front face 14 of the body 10 of cylinder. As previously mentioned, the use of a telescopic cylinder rod can be useful in some cases but it is not mandatory at all.

Dans le cas d'un dispositif D d'agrippement et de réglage en tension fixé sur une structure portante, comme montré aux figures 1 à 4, avec un support de l'embase coulissante inférieure 5 de l'ensemble avant 101 de serrage par une embase de fixation 7, cette embase coulissante inférieure 5 présente une possibilité de coulissement par rapport à l'embase de fixation 7 qui reste fixe car étant solidarisée avec la structure portante S.In the case of a gripping and tensioning device D attached to a supporting structure, as shown in FIGS. Figures 1 to 4 with a support of the lower sliding base 5 of the assembly before 101 clamping by a mounting base 7, this lower sliding base 5 has a possibility of sliding relative to the fixing base 7 which remains fixed because being secured to the bearing structure S.

Dans le cas contraire, non montré aux figures, où le dispositif est indépendant d'une structure portante, il convient de prévoir des moyens de limitation de liberté de déplacement de l'ensemble avant par rapport au corps arrière du dispositif afin que ce déplacement s'effectue uniquement longitudinalement au dispositif. Ces moyens peuvent être réalisés par au moins une barre de coulissement, de préférence au moins deux barres, portée par la partie arrière de l'ensemble avant de serrage et s'étendant dans la longueur du dispositif vers son corps arrière, ledit corps arrière comprenant un logement de réception adapté à ladite barre dans lequel la barre peut coulisser avec un jeu transversal réduit. Ainsi le seul déplacement autorisé de l'ensemble avant par rapport au corps arrière est un déplacement dans la longueur du dispositif.In the opposite case, not shown in the figures, where the device is independent of a bearing structure, it is necessary to provide means for limiting the freedom of movement of the front assembly relative to the rear body of the device so that this displacement only longitudinally to the device. These means may be provided by at least one sliding bar, preferably at least two bars, carried by the rear part of the assembly before tightening and extending in the length of the device towards its rear body, said rear body comprising a receiving housing adapted to said bar in which the bar can slide with a reduced transverse clearance. Thus the only authorized movement of the front assembly relative to the rear body is a displacement in the length of the device.

La figure 4 montre une coupe transversale de l'ensemble avant 101 du dispositif D d'agrippement et de réglage en tension d'un élément allongé E selon la ligne A-A montrée à la figure 1. Cette figure montre un mode de réalisation du coulissement entre, d'une part, les mâchoires 3 par rapport aux embases coulissantes associées 1 et 5 et, d'autre part, l'embase coulissante inférieure 5 par rapport à l'embase de fixation 7 à la structure portante. Ces divers coulissements sont rendus possibles par la présence d'un moyen de coulissement et/ou de maintien latéral spécifique pour chaque coulissement, ledit moyen étant illustré par une liaison à queue d'aronde 19 entre les éléments susmentionnés.The figure 4 shows a cross-section of the front assembly 101 of the gripping and tensioning device D of an elongated element E along the line AA shown in FIG. figure 1 . This figure shows an embodiment of the sliding between, on the one hand, the jaws 3 relative to the associated sliding bases 1 and 5 and, on the other hand, the lower sliding base 5 relative to the mounting base 7 to the supporting structure. These various sliding movements are made possible by the presence of a sliding means and / or specific lateral retention for each sliding, said means being illustrated by a dovetail connection 19 between the aforementioned elements.

Il est à garder à l'esprit que ceci n'est pas limitatif et que d'autres moyens améliorant le coulissement et/ou garantissant un maintien latéral lors du coulissement peuvent être mis en oeuvre, par exemple coulissement sur des rails, interposition de billes, interposition d'une plaque ou d'un film solide de lubrification, par exemple en matière plastique adéquate ou d'un simple film liquide de lubrifiant quand un minimum d'étanchéité entre les divers éléments est garanti.It should be borne in mind that this is not limiting and that other means improving the sliding and / or guaranteeing lateral retention during sliding can be implemented, for example sliding on rails, interposition of balls. , interposition of a plate or a solid lubricating film, for example of suitable plastic material or a simple liquid film of lubricant when a minimum of sealing between the various elements is guaranteed.

A la figure 4, il peut aussi être vu que l'ensemble avant 101 mobile de serrage, formé principalement des embases 1 et 5, peut présenter sur chacun de ses côtés latéraux une plaque de fermeture latérale 2 recouvrant au moins partiellement lesdits côtés. Chacune des plaques de fermeture 2 est solidarisée de manière amovible à une des embases coulissantes 1 et 5 par des moyens de fixation amovible 6a, par exemple une vis pénétrant dans un trou borgne 11 a taraudé commun à une embase coulissante 1 ou 5 et à une plaque de fermeture latérale 2 associée.To the figure 4 it can also be seen that the movable front assembly 101, formed mainly of the bases 1 and 5, may have on each of its lateral sides a side closure plate 2 at least partially covering said sides. Each of the closure plates 2 is detachably secured to one of the sliding bases 1 and 5 by removable fixing means 6a, for example a screw penetrating into a threaded blind hole 11 common to a sliding base 1 or 5 and to a side closure plate 2 associated.

Pour éviter qu'une mauvaise manoeuvre ne libère l'élément allongé par erreur au moment où l'ensemble avant 101 de serrage est en contact avec la face avant du vérin, il peut être prévu un dispositif de sécurité. De même, il peut aussi être prévu une sécurité pour empêcher que l'ensemble avant 101 mobile de serrage ne quitte la face avant du vérin avant que les mâchoires 3 soient en butée contre la plaque d'arrêt avant 9.To prevent an improper operation from releasing the elongated element by mistake at the moment the assembly before tightening 101 is in contact with the front face of the cylinder, it can be provided a safety device. Similarly, it can also be provided a safety to prevent the assembly before 101 movable tightening leaves the front face of the cylinder before the jaws 3 are in abutment against the front stop plate 9.

La présente invention peut s'appliquer à tous les domaines, où il est nécessaire d'agripper un élément allongé, aussi bien métallique qu'autre, cet élément pouvant être de plus ou moins grande section et de procéder à sa mise en tension. Elle peut par exemple trouver une application en association avec un treuil, par exemple un treuil hydraulique.The present invention can be applied to all areas, where it is necessary to grip an elongate element, both metallic and other, this element can be of greater or lesser section and proceed to its tensioning. It can for example find an application in combination with a winch, for example a hydraulic winch.

Une application particulièrement intéressante mais non exclusive du dispositif d'agrippement et de réglage en tension d'un élément allongé est son association avec un bateau comme structure portante, par exemple un voilier. Un tel dispositif est alors utile principalement comme équipement d'attache, de fixation et de réglage du gréement courant tout comme celui du gréement dormant et des manoeuvres. Notamment, il permet de bloquer et régler la tension d'une drisse de génois, focs, grandes voiles ou toutes autres voiles, d'une écoute de foc, de foc auto-vireur, de grande voile ou de toutes autres voiles en permettant un réglage précis et puissant. De même, le dispositif permet de lâcher rapidement et complètement en cas de besoin les écoutes et/ou drisses de génois, grandes voiles et toutes autres voiles. En montage volant sur toutes drisses, écoutes et autres manoeuvres, il permet de libérer un taquet, une poulie ou un winch, tout en maintenant la voile correctement réglée par sa drisse et/ou son écoute. Sur le gréement dormant, par exemple un pataras volant, après la reprise de tout le mou de la manoeuvre, le dispositif permet un réglage puissant et précis en fin de course.A particularly interesting but not exclusive application of the device for gripping and adjusting the tension of an elongated element is its association with a boat as a supporting structure, for example a sailboat. Such a device is then mainly used as attachment equipment, fixing and adjustment of the current rigging as that of the standing rigging and maneuvers. In particular, it makes it possible to block and adjust the tension of a halyard of genoa, jibs, large sails or any other sails, a jib, a jib, a mainsail or any other sail by allowing a precise and powerful adjustment. Similarly, the device allows to release quickly and completely if necessary the sheets and / or halyards of genoa, large sails and all other sails. Flying mounted on all halyards, plays and other maneuvers, it releases a cleat, a pulley or a winch, while maintaining the sail properly adjusted by its halyard and / or its listening. On the standing rigging, for example a flying backstay, after the resumption of all the slack of the maneuver, the device allows a powerful and precise adjustment at the end of the race.

Un tel dispositif peut aussi être utilisé à terre, notamment s'il est nécessaire d'attacher, de fixer et de régler la tension de tissu ou de toile.Such a device can also be used on the ground, especially if it is necessary to attach, fix and adjust the tension of fabric or fabric.

REFERENCESREFERENCES

  • 1. embase coulissante supérieure1. Upper sliding base
  • 1a. paroi interne formant rampe de l'embase coulissante supérieure1a. internal wall forming a ramp of the upper sliding base
  • 2. plaque de fermeture latérale2. side closure plate
  • 3. mâchoire3. jaw
  • 3a. partie d'une mâchoire effectuant le coulissement3a. part of a jaw sliding
  • 3b surface interne d'une mâchoire en vis à vis de l'élément allongé3b inner surface of a jaw facing the elongated element
  • 4. évidement de logement d'un ressort de rappel et de son élément de maintien dans une mâchoire4. recess housing a return spring and its holding member in a jaw
  • 5. embase coulissante inférieure5. lower sliding base
  • 5a. paroi interne formant rampe de l'embase coulissante inférieure5a. internal wall forming a ramp of the lower sliding base
  • 6. vis de fixation de la plaque d'arrêt avant6. screw fixing the front stop plate
  • 6a vis de fixation de la plaque de fermeture latérale6a fastening screws of the side closure plate
  • 7. embase de fixation du corps arrière et de l'ensemble avant de serrage à une structure portante7. base for fixing the rear body and the assembly before clamping to a supporting structure
  • 8. vis de fixation de l'embase de fixation à la structure portante8. fixing screws from the mounting base to the supporting structure
  • 9. plaque d'arrêt avant de l'ensemble de serrage9. front stop plate of the clamping assembly
  • 10. corps arrière du dispositif10. rear body of the device
  • 10a. orifice d'admission ou d'évacuation dans le corps du vérin côté tête de tige10a. inlet or outlet port in the cylinder body at the end of the stem
  • 10b. orifice d'admission ou d'évacuation dans le corps du vérin côté tige10b. inlet or outlet port in the cylinder body rod side
  • 11. trou borgne taraudé pour vis de fixation de la plaque arrêt avant11. Tapped blind hole for fixing screws of the plate stop before
  • 11 a trou borgne taraudé pour vis de fixation de la plaque de fermeture latérale11a threaded blind hole for fastening screws of the side closure plate
  • 12. empreinte sur la face interne d'une mâchoire en vis à vis de l'élément allongé12. imprint on the inner face of a jaw facing the elongated element
  • 13. plaque d'arrêt arrière de l'ensemble de serrage13. rear stop plate of the clamping assembly
  • 14. face avant du corps de vérin14. front of the cylinder body
  • 15. tige du vérin15. cylinder rod
  • 16. ressort de rappel16. return spring
  • 17. élément de maintien du ressort de rappel17. holding element of the return spring
  • 18a. chambre interne tête de tige du corps de vérin18a. inner chamber rod head cylinder body
  • 18b. chambre interne tige du corps du vérin18b. internal chamber rod of the cylinder body
  • 19. moyen de coulissement et/ou de maintien latéral19. means of sliding and / or lateral holding
  • 20. élément de solidarisation tige de vérin avec mâchoires20. fastening element cylinder rod with jaws
  • 101. ensemble avant mobile de serrage101. mobile front clamping assembly
  • D dispositif d'agrippement et de réglage en tensionD gripping and tensioning device
  • E élément allongéE elongated element
  • S structure portanteS bearing structure
  • Fa flèche admission fluide corps vérin côté tête de tigeFa arrow admission fluid body cylinder side rod head
  • Fag flèche de déplacement des mâchoires dans le sens d'un agrippement de l'élément allongéFag arrow moving the jaws in the direction of gripping the elongated element
  • Fav flèche de déplacement de la tige de vérin dans le sens d'un agrippement de l'élément allongéFav arrow for moving the cylinder rod in the direction of a gripping of the elongated element
  • Fdg flèche de déplacement des mâchoires dans le sens d'une libération de l'élément allongéFdg arrow moving the jaws in the direction of a release of the elongated element
  • Fe flèche évacuation fluide corps vérin côté tête de tigeFe boom evacuation fluid body cylinder side rod head
  • Fent flèche admission fluide corps vérin côté tigeFent arrow fluid inlet body cylinder rod side
  • Fevt flèche évacuation fluide corps vérin côté tigeFevt boom evacuation fluid body cylinder rod side

Claims (14)

  1. Device (D) for gripping and adjusting the tension of an elongated component (E), said device (D) being penetrated longitudinally in its middle part by said elongated component (E) and comprising lengthwise a rear body (10), through which said component (E) is inserted into device (D), and extended by a front tightening assembly (101), allowing the said component to emerge from device (D) and applying force transversally on said elongated component (E) through jaws (3) positioned around, at least partially, said component (E) and arranged inside said front assembly (101), said jaws (3) being longitudinally mobile inside said front assembly (101) under the action of at least one actuating means, said front assembly (101) having at least a one-jaw (3) guiding system (1 a, 5a, 19) in order to move together jaws (3) closer together in order to grip said component (E) inside said assembly (101), the distance between jaws (3) decreasing as they move towards the front, characterised in that front tightening assembly (101) is mobile relative to rear body (10) and includes at least one means (9) for joining it with jaws (3), such means becoming active after said jaws (3) are placed in a gripping position, movement of said jaws (3) driving the movement of said joined assembly (101) which then applies a tractive force towards the front of elongated component (E).
  2. Device (D) according to claim 1, characterised in that joining means (9) consists of a stop (9) in the front part of front assembly (101) preventing forward movement of jaws (3) relative to said assembly (101).
  3. Device (D) according to claim 2, characterised in that the stop takes the form of a stop plate (9) removably placed in the front part of the front tightening assembly (101).
  4. Device (D) according to any one of the above claims, characterised in that front tightening assembly (101) comprises two bases (1 and 5) positioned symmetrically relative to its longitudinal axis, each one of bases (1 and 5) being associated with a jaw (3) and at least one base (1 or 5) and having an internal wall (1a or 5a) forming a ramp so that a jaw (3) slides due to it being inclined towards the longitudinal axis of front assembly (101) in the direction of said assembly (101), said internal wall (1a or 5a) being part of jaw (3) guiding system (1a, 5a, 19).
  5. Device (D) according to any one of the above claims, characterised in that guiding system (1 a, 5a, 19), has sliding means and/or lateral retaining means (19) in the form of a dovetail, a rail or a track coacting with bearing rollers or balls, a solid film or a liquid lubricant.
  6. Device (D) according to any one of the above claims, characterised in that return means (16) are provided between each jaw (3) and rear part (13) of front tightening assembly (101), the first end of the return means (16) coacting with said rear part (13) and the second end being joined on jaw (3), return means (16) returning their associated jaw (3) towards the rear and therefore to a position that releases elongated component (E) from jaws (3).
  7. Device (D) according to claims 5 and 6, characterised in that each jaw (3) has at least one cavity (4) receiving at least partially said return means (16) in the form of a helicoidal spring, this cavity (4) extending roughly parallel to inner wall (1a or 5a) of associated base (1 or 5), second end of spring (16) being joined to the bottom of cavity (4), a retaining component (17) being positioned inside spring (16), one end of this retaining component (17) being joined to the rear part (13) of front assembly (101) in common with the first end of the spring (16).
  8. Device (D) according to any one of the above claims, characterised in that the actuating means consist in at least one cylinder, the cylinder body forming the rear body (10) of device (D) and cylinder rod (15) being connected to the rear part of at least one jaw (3).
  9. Device (D) according to the previous claim, characterised in that the cylinder is a double-acting cylinder comprising a first chamber (18a) with a hydraulic fluid intake or discharge port (10a), intake of fluid into this chamber (18a) driving rod (15) out of cylinder body (10) and a second chamber (18b) with an intake or discharge port (10b), the intake of fluid into this chamber (18b) driving retraction of rod (15) inside cylinder body (10).
  10. Device (D) according to claim 8 or 9, characterised in that a coupling rod (20) couples cylinder rod (15) to at least one jaw (3), this coupling rod (20) being articulated respectively with cylinder rod (15) and said jaw (3).
  11. Device (D) according to any one of claims 8 to 10, characterised in that a single cylinder actuates jaws (3).
  12. Device (D) according to any one of the above claims, characterised in that it is designed to receive an elongated component (E) such as a rope, cable or similar, each internal surface (3b) of jaws (3) in contact with this elongated component (E) having an imprint (12) adapted to the elongated component (E) in order to coact with said component (E) when gripping it.
  13. Support structure (S) characterised in that it supports a device (D) for gripping and adjusting the tension of an elongated component (E) according to any one of the above claims, said device (D) being fastened to support structure (S) by a fixing base (7), front tightening assembly (101) of said device (D) having freedom to slide longitudinally relative to base (7) to device (D), a means for sliding and/or lateral retention (19) being provided between front assembly (101) and base (7).
  14. Support structure (S) according to the previous claim, characterised in that it is a ship, elongated element (E) being a rope of an item of equipment present on said ship.
EP11721318.1A 2010-05-27 2011-05-25 Device for gripping and adjusting the tension of an elongate element such as a cable, rope or the like Not-in-force EP2576414B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1054102A FR2960535B1 (en) 2010-05-27 2010-05-27 DEVICE FOR ENABLING AND ADJUSTING THE VOLTAGE OF A CABLE TYPE EXTENSION ELEMENT, CORDAGE OR SIMILAR ELEMENT
PCT/EP2011/058527 WO2011147858A1 (en) 2010-05-27 2011-05-25 Device for gripping and adjusting the tension of an elongate element such as a cable, rope or the like

Publications (2)

Publication Number Publication Date
EP2576414A1 EP2576414A1 (en) 2013-04-10
EP2576414B1 true EP2576414B1 (en) 2014-03-26

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP11721318.1A Not-in-force EP2576414B1 (en) 2010-05-27 2011-05-25 Device for gripping and adjusting the tension of an elongate element such as a cable, rope or the like

Country Status (4)

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US (1) US8826841B2 (en)
EP (1) EP2576414B1 (en)
FR (1) FR2960535B1 (en)
WO (1) WO2011147858A1 (en)

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US9546524B2 (en) * 2013-12-31 2017-01-17 Longyear Tm, Inc. Handling and recovery devices for tubular members and associated methods
CN104477734B (en) * 2014-12-11 2016-05-04 中国矿业大学 Tensioning device and tensioning method for steel wire rope of ultra-deep vertical shaft cage guide
US10053973B2 (en) 2015-09-30 2018-08-21 Longyear Tm, Inc. Braking devices for drilling operations, and systems and methods of using same
CN106882708B (en) * 2017-02-13 2018-02-16 太原理工大学 A kind of perpendicular lifting apparatus and method
EP3899195A4 (en) * 2018-12-21 2022-07-27 J.H Fletcher & Co. CABLE PUSHING ELEMENT AND RELATED METHODS
FR3097287B1 (en) * 2019-06-13 2022-12-23 Thales Sa LOCKING DEVICE FOR AN OBJECT HANGING ON A CABLE
CN111509524B (en) * 2020-06-01 2024-08-23 苏州祥龙嘉业电子科技股份有限公司 Remove material equipment mechanism suitable for bent pin connector LED lamp
CN114291210B (en) * 2022-01-06 2023-06-09 西南石油大学 A seabed automatic anchoring device
CN115417245B (en) * 2022-09-27 2023-05-26 浙江瑞羽纺织科技有限公司 Double-roller tension frame for elasticizer for processing polyester high stretch yarns

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Also Published As

Publication number Publication date
US20130074756A1 (en) 2013-03-28
EP2576414A1 (en) 2013-04-10
US8826841B2 (en) 2014-09-09
WO2011147858A1 (en) 2011-12-01
FR2960535B1 (en) 2012-06-01
FR2960535A1 (en) 2011-12-02

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