WO2016128887A1 - Device for immobilizing an outer first tube and an inner second tube or a solid rod which are mounted telescopically with respect to one another - Google Patents

Device for immobilizing an outer first tube and an inner second tube or a solid rod which are mounted telescopically with respect to one another Download PDF

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Publication number
WO2016128887A1
WO2016128887A1 PCT/IB2016/050668 IB2016050668W WO2016128887A1 WO 2016128887 A1 WO2016128887 A1 WO 2016128887A1 IB 2016050668 W IB2016050668 W IB 2016050668W WO 2016128887 A1 WO2016128887 A1 WO 2016128887A1
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WO
WIPO (PCT)
Prior art keywords
outer tube
vicinity
collar
locking
locking lever
Prior art date
Application number
PCT/IB2016/050668
Other languages
French (fr)
Inventor
Georges DE MONESTROL
Original Assignee
De Monestrol Georges
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by De Monestrol Georges filed Critical De Monestrol Georges
Publication of WO2016128887A1 publication Critical patent/WO2016128887A1/en

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Classifications

    • A—HUMAN NECESSITIES
    • A45—HAND OR TRAVELLING ARTICLES
    • A45B—WALKING STICKS; UMBRELLAS; LADIES' OR LIKE FANS
    • A45B9/00—Details
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
    • A63C11/00—Accessories for skiing or snowboarding
    • A63C11/22—Ski-sticks
    • A63C11/221—Ski-sticks telescopic, e.g. for varying the length or for damping shocks
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B7/00—Connections of rods or tubes, e.g. of non-circular section, mutually, including resilient connections
    • F16B7/10—Telescoping systems
    • F16B7/105—Telescoping systems locking in discrete positions, e.g. in extreme extended position
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B7/00—Connections of rods or tubes, e.g. of non-circular section, mutually, including resilient connections
    • F16B7/10—Telescoping systems
    • F16B7/14—Telescoping systems locking in intermediate non-discrete positions
    • F16B7/1418—Telescoping systems locking in intermediate non-discrete positions with a clamping collar or two split clamping rings tightened by a screw or a cammed latch member
    • A—HUMAN NECESSITIES
    • A45—HAND OR TRAVELLING ARTICLES
    • A45B—WALKING STICKS; UMBRELLAS; LADIES' OR LIKE FANS
    • A45B9/00—Details
    • A45B2009/005—Shafts
    • A45B2009/007—Shafts of adjustable length, e.g. telescopic shafts

Definitions

  • the present invention relates to a device for locking a first outer tube and a second inner tube or a solid rod mounted telescopically between them.
  • first outer tube and a second inner tube or a solid rod mounted telescopically between them.
  • second inner tube mounted telescopically between them.
  • This device is particularly applicable to hiking poles, canes for handicapped people, but also to the extension of tool handles for many manual activities such as roller painting, spraying, washing or at masts or supports length adjustable.
  • clamping devices gradually cause deformation and wear of the inner tube and therefore friction hindering the sliding.
  • the main difficulty in locking and unblocking telescopic tubes lies essentially in the possibility of performing this operation with one hand.
  • the object of the invention is to provide a device for blocking and unblocking telescopic tubes with one hand.
  • the proposed device incorporates the principle of blocking the outer tube on the inner tube by relying on the outer tube; it consists in allowing all the outer and inner tubes to slide, to be locked and unlocked, and with one hand.
  • the invention relates to a device for locking a first outer tube and a second inner tube mounted telescopically between them, comprising:
  • said lateral traction means comprise a locking lever, gripping means located outside said locking lever and means for repulsing said locking lever with respect to said outer tube;
  • said articulation means of said lateral traction means comprise a first collar fixed on said outer tube, comprising on its periphery a hinge eye whose axis is perpendicular to the main axis of said outer tube;
  • said locking means comprise clamping means consisting of a ribbon, cable or metal or polymer wire or a textile band, surrounding said inner tube,
  • said first collar like all other collars which will be described later, is adapted to be assembled to the outer tube by any means, including clamping, gluing or other.
  • the device comprises means for locking said lateral traction means in its locked position, said locking means of said lateral traction means comprising a second collar situated above said first collar, at a distance close to the width of the hand of the operator, and
  • said blocking means are located below the lower end of said outer tube, and having on their periphery a hinge eye whose axis is perpendicular to the main axis of said inner tube, and means of engagement in the lower part of said lever, engaging with the clamping means in the vicinity of the hinge eye.
  • said locking lever is movable between two positions; a first position, called unlocking, of rotating it under the effect of said repulsion means and thus releasing said clamping means surrounding the inner tube; a second position, said locking, of rotating it under the manual effect by bringing it closer to the outer tube, allowing the blocking thereof in the vicinity of the second collar of the outer tube, and the immobilization of the inner tube relative to the outer tube by said clamping means surrounding the inner tube.
  • said locking lever located in a plane containing the axes of said outer and inner tubes, articulated around the axis of the hinge eye of the first collar, has a length such that the distance separating the gripping means and the axis of the hinge eye is greater than the distance between the axis of the hinge eye and the clamping means.
  • said repulsion means of the locking lever consist of a spring whose main axis is orthogonal to the axis of the outer tube, said spring being integral with the locking lever, in the upper vicinity of the first collar, and in compression with respect to the outer tube.
  • said locking means in the upper part of said locking lever in the vicinity of the second clamping collar of the outer tube consist of an elastic tongue secured to the second clamping collar integral with the outer tube, said tongue comprising a lug immobilizing the lever locking in the so-called blocking position.
  • said locking means in the upper part of said locking lever in the vicinity of the second collar of the outer tube consist of a rack with asymmetrical teeth, articulated in the vicinity of the second collar integral with the outer tube, the locking lever having in the vicinity its upper end locking means according to the respective positions between the rack and the locking lever.
  • said locking means in the upper part of said locking lever in the vicinity of the second collar of the outer tube consist of a rod articulated in the vicinity of the second collar secured to the outer tube, the locking lever having in the vicinity of its upper end.
  • locking means of said rod by means of a secondary lever, articulated in the vicinity of the upper end of the locking lever, and having an orifice of diameter slightly greater than that of said rod, allowing it to pass through said secondary lever , near its first end, which secondary lever is secured to a spring located in the vicinity of its second end and pressing the locking lever.
  • the outer tube is a sleeve of limited length, sliding on the inner tube and having in the vicinity of its lower end, said first collar, and in the vicinity of its upper end, said second collar.
  • said outer and inner tubes may be of other than circular section, namely square, rectangular, oval, polygonal.
  • the clamping means surrounding the inner tube are located above the lower end of the outer tube, and have on their periphery a eyecup located near a window allowing the connection of this eyecup with the inside of the outer tube, the locking lever, located in a plane containing the axes of said outer and inner tubes, being hinged about the axis of the hinge eye of the first collar, and comprising, as gripping means, the eyepiece located above the axis of the hinge eye, said locking lever being kept away from the outer tube by means of repulsion between the lever and the outer tube.
  • these repulsion means are in the form of a rod articulated around the eyecup located at the end of the locking lever, said link having at its other end a roller rolling on the outer tube, the axis of said roller carrying a pusher and being pulled by an extension spring itself connected to the first collar.
  • the locking lever comprises a main branch and a secondary branch, is located remote from the lower end of the outer tube, and is articulated around the axis of the eyelet of the first collar; the secondary branch is perpendicular to the main branch thus forming a square, or horn, the free end of said secondary branch having a eyecup, the free end of said main branch being in the vicinity of locking means, in the vicinity of a second collar of said outer tube; a second locking lever, consisting of a main branch and a secondary branch, is arranged at the lower end of the outer tube, articulated around the axis of the eye of a third collar, the secondary branch of this second locking lever being perpendicular to the main branch of this second lever of blocking, thereby forming a second horn, the free end of said secondary branch having a eyecup, in the vicinity of which gripping means are integral with the clamping means surrounding the inner tube, the free end of said main branch having a eyecup; said two horns are mounted head to tail, their free ends comprising said
  • the device comprises gripping means located in the vicinity of the upper part of the outer tube, a third collar, located below said gripping means comprising a hinge eye, and a handle articulated around said eyecup and comprising adjacent its lower part a eyecup, the eyelet of the connecting rod and the eyecup of the handle being connected by a Bowden type cable through a sheath integral with the outer surface of the outer tube, arranged in a generatrix.
  • a compression chamber is constituted, on the one hand by the closed inner tube in the vicinity of its upper end and on the other hand by the closed outer tube also in the vicinity of its outer end, this chamber comprising a spring mounted in compression .
  • the compression chamber comprises a seal provided between the two tubes.
  • the pressure in the compression chamber is provided by a pneumatic piston, located between the upper parts of the inner and outer tubes, the pressure being adjustable by means of a valve located in the vicinity of the upper end of the outer tube.
  • the device according to the invention can be applied to the realization of hiking stick or ski of variable length adapted to the terrain configuration, the locking and unlocking of the two outer and inner tubes can be performed with one hand.
  • Energy storage in the form of a spring or air compression may be applied to the realization of a rod to facilitate the movement of a disabled.
  • the device according to the invention may be applied to the production of tool extension of variable length, masts of variable height or any support requiring adjustment of its length.
  • Figures la, lb, are a schematic representation of the structure of a device according to a first embodiment
  • Figures 2a, 2b are a schematic representation of the structure of the device according to a second embodiment
  • Figure 3 is a schematic representation of the structure of the device according to a third embodiment
  • Figure 3a is a schematic representation of the structure of the device according to an alternative embodiment of the third embodiment
  • Figure 4 is a schematic representation of the structure of the device according to a fourth embodiment
  • Fig. 5 is a schematic representation of the structure of the device according to a fifth embodiment
  • Figure 5a is a schematic representation of the structure of the device according to an alternative embodiment of the fifth embodiment.
  • Figures 6a, 6b are a schematic representation of the upper part of the device according to a sixth embodiment.
  • the device according to the invention comprises:
  • a first clamp Cl fixed on an outer tube T1, located in the vicinity of the lower end of said outer tube T1, and having on its periphery a clamping eye 01 situated in the vicinity of the periphery of the outer tube T1, and a hinge eye 02, remote from the clamping eye 01, whose axes are perpendicular to the main axis of the outer tube X-X ',
  • a second clamp C2 situated above said first clamping collar C1, at a distance close to the width of the operator's hand, and having a clamping eye 03 situated in the vicinity of the periphery of the outer tube T1,
  • a locking lever LB situated in a plane P containing the axis X-X ', articulated around the axis of the eyepiece 02 of the first clamping collar C1, and comprising gripping means PR, situated at a distance outside said lock lever LB,
  • the device according to the invention is in the locking position of the inner tube T2 relative to the outer tube T1; reciprocally, in the example shown in Figure lb, the device according to the invention is in the unlocking position of the inner tube T2 relative to the outer tube T 1.
  • the clamping means MS may consist of a metal or polymer ribbon; they may also consist of a textile band.
  • the locking means MV may consist of a flexible rod which comprises a lug for holding the locking lever LB in said locking position; they may also consist of a rack-and-pinion device, facilitating the locking operation in a progressive manner.
  • the repulsion means MR may consist of a spring, integral with the outer tube T1, and operating in compression.
  • the gripping means PR may consist of a cladding surrounding the locking lever LB so as to facilitate the manipulation of said lever.
  • the simultaneous manipulation of the locking lever LB and the locking means MV makes it possible to block or unlock the inner tube T2 relative to the outer tube T1, with one hand.
  • the device according to the invention comprises:
  • a first clamp Cl mounted on an outer tube T1, located in the vicinity of the lower end of said outer tube T1, and having on its periphery a clamping eye 01 situated in the vicinity of the periphery of the outer tube T1, and a hinge eye 02, remote from the clamping eye 01, whose axes are perpendicular to the main axis of the outer tube X-X ',
  • a second clamp C2 situated above said first clamping collar C1, at a distance close to the width of the operator's hand, and comprising a clamping eye 03 situated in the vicinity of the periphery of the outer tube; Tl,
  • a locking lever LB located in the plane P containing the axis X-X 'articulated around the axis of the eyelet 02 of the first clamping collar Cl, and comprising gripping means PR, situated at the outside said lock lever LB,
  • a lever Le articulated in the vicinity of its center about an axis 05 situated in the vicinity of the free end of the locking lever LB, in the plane P containing the axis X-X ', which lever has a orifice in the vicinity of the upper end crossed by said rod Ti, and a spring MR, operating in compression and disposed in the vicinity of the lower end, which spring MR bears on the locking lever LB.
  • the diameter of the Le lever port is slightly greater than the diameter of the Ti rod; the lever Le, associated with the spring MR, and the rod Ti is a mordache for locking the locking lever LB in the so-called blocking position.
  • the device according to the invention is in the locked position of the inner tube T2 relative to the outer tube T1; reciprocally, in the example shown in Figure 2b, the device according to the invention is in the unlocking position of the inner tube T2 relative to the outer tube T 1.
  • FIG. 3 A third embodiment illustrated by FIG. 3 will now be described in that it differs from previously defined embodiments.
  • the device according to the invention comprises:
  • a first clamp C 1 mounted on an outer tube T1, and having on its periphery a clamping eye 01 located in the vicinity of the periphery of the outer tube T1, and a hinge eye 02, remote eyepiece 1, whose axes are perpendicular to the main axis of the outer tube X-X ',
  • a second clamping collar C2 situated above said first clamping collar C1 at a distance close to the width of the operator's hand and comprising a clamping eye 03 situated in the vicinity of the periphery of the outer tube T 1
  • a locking lever LB situated in a plane P containing the axis X-X 'of said outer tubes T1 and inner T2, articulated about the axis of the eyelet 02 of the first clamping collar C1,
  • gripping means MP located above the eyepiece 02, and
  • the repulsion means MR located in the vicinity of the upper part of the locking lever LB, causes a permanent blocking of the inner tube T2 relative to the outer tube T1; bringing the blocking lever LB towards the outer tube T1 thus releases the inner tube T2 from the outer tube T 1.
  • the repulsion means is constituted by a traction spring RE fixed on the one hand to the eyelet 01 of the clamping collar C1, on the other hand to the axis O10 of a roller GL.
  • This roller GL rolls on the outer tube Tl; its axis 010 is fixed to a link BL whose other end pivots around the eyecup 03 arranged at the end of the lever LB.
  • the spring RE thus exerts a repulsion of the lever LB strongly amplified at the end of stroke by a cosine effect when the link BL is close to the perpendicularity to the tube Tl.
  • a stop arranged on the lever LB near the eyecup 03 limits the rotation of the link BL so that it remains oblique with respect to the tube T1.
  • a hand pressure then allows to bring the lever LB of the tube T 1 and thus unblock the tube T2.
  • a pusher P fixed on the axis of the roller Gl can facilitate if necessary the release by a thumb pressure of the user.
  • the outer tube T1 may be a sleeve of limited length, about the width of a hand.
  • FIG. 4 A fourth embodiment illustrated in FIG. 4 will now be described in that it differs from the first embodiment previously defined.
  • a first locking lever LB 1, LB2 is located remote from the lower end of the outer tube T1, articulated around the axis of the eyelet 02 of the first clamping collar C1, further comprising a secondary branch LB2 perpendicular to the main branch LB 1 thus forming a bracket, or horn G1, the free end of said secondary branch LB2 having an eyelet 03, the free end of said main branch LB 1 being in the vicinity of locking means MV, in the vicinity of a second clamp C2 of said outer tube T1; a second locking lever LB3, LB4, arranged at the lower end of the outer tube T 1, articulated around the axis of the eyelet 07 of a third clamp C3, also comprising a main branch LB3 and a branch secondary LB4 perpendicular to the main branch LB3 thus forming a second horn G2, the free end of said secondary branch LB4 having a eyepiece 05, in the vicinity of which MP engagement means are integral with the clamping means MS surrounding the inner tube T2, the free end of
  • the manual control of the blocking-unlocking of the slide is here placed at the upper end of the outer tube T1 by means of a BOWDEN AC cable return.
  • Workers doing roller painting or washing, for example, use a lot of extensions to reach inaccessible areas; being able to easily change the length with one hand is an advantage. Hikers in rough terrain often need to change the length of their poles. For example, when walking on a winding trail, the upstream stick must be much shorter than the downstream stick because of the cant; they must be exchanged or adjusted at each lace.
  • FIG. 5 A fifth embodiment illustrated in FIG. 5 will now be described in that it differs from previously defined embodiments.
  • Clamping means MS surrounding the inner tube T2 are located above the lower end of the outer tube T1, and have on their periphery a eyelet 04 located near a window LU allowing the connection of these means MS to outer tube T1, a locking lever LB, located in said plane P containing the axis XX 'of said outer tubes T1 and inner T2, being hinged about the axis of the eyelet 02 of a first clamping collar C1, said locking lever LB being kept away from the outer tube T1 by means of repulsion, which can be either a spring, in the case of Figure 5, or a rod BL associated with a roller GL and a spring RE, to the as in the variant embodiment described above with reference to FIG. 3a.
  • the device comprises said link BL, articulated around a eyelet 03 placed at the end of the lever LB opposite the eyelet 02, said link being provided at its other end with a roller GL articulated on a eyecup and rolling on the outer tube Tl and being pulled down by an extension spring RE, said spring being hooked to the eyecup of the roller GL and to the eyelet 01 of the clamp C 1.
  • gripping means PR are located in the vicinity of the upper part of the outer tube T1
  • a second clamping collar C3 is located below said gripping means PR
  • a handle PO articulated by a eyelet 05 to said collar C3
  • This eyepiece 07 and the eyelet O10 of the rod BL are connected by a Bowden type AC cable passing through a sheath GA integral with the outer surface of the outer tube T1, arranged in a generatrix.
  • the repulsion means comprising the link BL and the roller GL located in the vicinity of the upper part of the locking lever LB, cause a permanent blocking of the inner tube T2 relative to the outer tube Tl due to the traction of the spring RE; the bringing together of the handle PO towards the outer tube T1 makes it possible, by the effect of traction on the cable CA, the inclination of the link BL and thus the bringing together of the locking lever LB towards the outer tube T1, and thus the unlocking of the inner tube T2 relative to the outer tube T 1.
  • FIGS. 6a and 6b A sixth embodiment illustrated by FIGS. 6a and 6b will now be described and may be applied to the various embodiments described above.
  • a compression chamber CP constituted on the one hand by the inner tube T2 closed near its upper end and on the other by the outer tube T1 also closed near its upper end, comprises a spring RE mounted in compression.
  • the compression chamber CP constituted, on the one hand by the inner tube T2 closed in the vicinity of its upper end and on the other hand by the outer tube T1 also closed in the vicinity of its upper end, a seal being provided between said tubes T1 , T2.
  • the pressure in said compression chamber CP is provided by a pneumatic piston PI, situated between said upper parts of the tubes T1, T2, the pressure being adjustable by means of a valve VA situated in the vicinity of the upper end of the outer tube T1. .
  • FIGS. 6a and 6b thus represent the addition of a mechanical spring RE or a pneumatic piston PI for easily modifying the length and possibly storing and then restoring the compression energy.
  • the pneumatic piston PI can be adjusted in pressure according to the weight and the force of the user thanks to the valve VA secured to the upper part of the outer tube Tl.
  • the volume of spring air can be increased as well if an orifice is made in the upper part of the inner tube T2 and if the inner tube T2 is closed at its lower end.
  • the support force provided by the device varies much less between the extreme positions.
  • the device for locking and unblocking telescopic tubes applies to the sticks of hiking, disabled walking sticks, tool handle extensions, variable length masts, locking and unblocking can be done with one hand; moreover, the storage of mechanical or pneumatic energy, making it possible to facilitate the adjustment of the respective positions of the telescopic tubes, can be applied in particular to the production of canes for the disabled.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Joints Allowing Movement (AREA)
  • Mutual Connection Of Rods And Tubes (AREA)
  • Manipulator (AREA)

Abstract

The subject of the invention is a device for immobilizing an outer first tube T1 and an inner second tube T2 which are mounted telescopically with respect to one another, which device comprises: lateral traction means LB, articulation means C1, O2 for articulating said lateral traction means between a free position and a locked position, locking means MV for locking said lateral traction means in the locked position thereof, immobilizing means MS: • articulated to a first end of said lateral traction means, • mounted to slide longitudinally relative to the inner tube such that when said lateral traction means are in the locked position, said immobilizing means apply a lateral force to the inner tube capable of causing the inner and outer tubes to be immobilized.

Description

DISPOSITIF POUR LE BLOCAGE D'UN PREMIER TUBE EXTERIEUR ET D'UN DEUXIEME TUBE INTERIEUR OU D'UNE TIGE PLEINE MONTES  DEVICE FOR LOCKING A FIRST OUTDOOR TUBE AND A SECOND INTERIOR TUBE OR A FULL ROD MOUNTED
TELESCOPIQUES ENTRE EUX  TELESCOPIC BETWEEN THEM
La présente invention concerne un dispositif pour le blocage d'un premier tube extérieur et d'un deuxième tube intérieur ou d'une tige pleine montés télescopiques entre eux. Par simplification, seule l'expression "tube intérieur" sera utilisée ci-après. The present invention relates to a device for locking a first outer tube and a second inner tube or a solid rod mounted telescopically between them. For simplicity, only the expression "inner tube" will be used hereinafter.
Ce dispositif s'applique notamment aux bâtons de randonnée, aux cannes pour handicapés, mais également aux prolongateurs de manches d'outils pour de nombreuses activités manuelles telles que le peinturage au rouleau, la pulvérisation, le lavage ou encore aux mâts ou supports de longueur réglable.  This device is particularly applicable to hiking poles, canes for handicapped people, but also to the extension of tool handles for many manual activities such as roller painting, spraying, washing or at masts or supports length adjustable.
D'une façon générale, on sait que, concernant les bâtons de randonnée, le vissage et le dévissage d'un élément par rapport à l'autre, ne pouvant se faire qu'à l'arrêt, nécessite les deux mains et une certaine force. De même, le réglage en longueur de prolongateurs d'outil ou de mâts de parasol par exemple, s'obtenant par serrage desserrage d'une vis ou d'un levier à came excentrique fixé en général sur le tube extérieur, nécessite également l'emploi des deux mains.  Generally speaking, it is known that, with respect to the hiking sticks, the screwing and unscrewing of one element relative to the other, which can only be done at a standstill, requires both hands and a certain amount of strength. Similarly, the adjustment in length of tool extensions or umbrella poles for example, obtained by tightening loosening of a screw or eccentric cam lever generally fixed to the outer tube, also requires the use of both hands.
Par ailleurs, ces dispositifs de serrage provoquent progressivement une déformation et l'usure du tube intérieur et par conséquent des frottements gênant le coulissement.  Furthermore, these clamping devices gradually cause deformation and wear of the inner tube and therefore friction hindering the sliding.
La difficulté principale, concernant le blocage et le déblocage de tubes télescopiques, réside essentiellement dans la possibilité d'effectuer cette opération d'une seule main.  The main difficulty in locking and unblocking telescopic tubes lies essentially in the possibility of performing this operation with one hand.
Dans l'état de l'art, la publication de demande de brevet N° US 2003/152419 propose d'entourer le tube intérieur d'une douille, laquelle est poussée contre le tube extérieur; ce dispositif ne peut fonctionner qu'en dehors du tube extérieur ; le serrage étant effectué par vissage, le dispositif ne permet pas l'utilisation d'une seule main.  In the state of the art, the publication of patent application No. US 2003/152419 proposes to surround the inner tube with a socket, which is pushed against the outer tube; this device can only work outside the outer tube; the tightening being performed by screwing, the device does not allow the use of one hand.
La publication de demande de brevet N° US 2009/245927 propose un dispositif évitant la déformation du tube intérieur, mais au moyen d'une structure compliquée comportant de nombreuses pièces dont une tige intérieure et des coins. Les documents ci-dessus, concernant des dispositifs de blocage et déblocage de tubes télescopiques, proposent des solutions mettant en œuvre soit de nombreuses pièces mécaniques, soit des vissages provoquant la déformation des tubes. The publication of patent application No. US 2009/245927 proposes a device avoiding the deformation of the inner tube, but by means of a complicated structure having many parts including an inner shaft and corners. The above documents, concerning devices for locking and unlocking telescopic tubes, propose solutions using either many mechanical parts or screwings causing the deformation of the tubes.
II faut noter par ailleurs que les solutions proposées ne permettent pas d'effectuer cette opération d'une seule main.  It should also be noted that the solutions proposed do not make it possible to perform this operation with one hand.
Le but de l'invention est de proposer un dispositif permettant le blocage et le déblocage de tubes télescopiques d'une seule main.  The object of the invention is to provide a device for blocking and unblocking telescopic tubes with one hand.
Les documents US 2012/107307, DE 20 2009 004370 Ul et EP 1 327 783 A2 décrivent divers dispositifs, ne permettant pas d'atteindre ce but de façon satisfaisante.  Documents US 2012/107307, DE 20 2009 004370 UI and EP 1 327 783 A2 describe various devices, which do not make it possible to achieve this goal satisfactorily.
Le dispositif proposé reprend le principe du blocage du tube extérieur sur le tube intérieur en s'appuyant sur le tube extérieur ; il consiste en effet à permettre à l'ensemble des tubes extérieur et intérieur de coulisser, d'être verrouillés et déverrouillés, et ce d'une seule main.  The proposed device incorporates the principle of blocking the outer tube on the inner tube by relying on the outer tube; it consists in allowing all the outer and inner tubes to slide, to be locked and unlocked, and with one hand.
L'invention a pour objet un dispositif pour le blocage d'un premier tube extérieur et d'un deuxième tube intérieur montés télescopiques entre eux, comprenant :  The invention relates to a device for locking a first outer tube and a second inner tube mounted telescopically between them, comprising:
- des moyens de traction latérale,  lateral traction means,
- des moyens d'articulation desdits moyens de traction latérale entre une position libre et une position verrouillée,  means of articulation of said lateral traction means between a free position and a locked position,
- des moyens de blocage :  - locking means:
• articulés auxdits moyens de traction latérale,  Articulated to said lateral traction means,
• montés longitudinalement coulissant relativement au tube intérieur, caractérisé en ce que :  • mounted longitudinally sliding relative to the inner tube, characterized in that:
- lesdits moyens de traction latérale comprennent un levier de blocage, des moyens de préhension situés à l'extérieur dudit levier de blocage et des moyens de répulsion dudit levier de blocage par rapport audit tube extérieur, said lateral traction means comprise a locking lever, gripping means located outside said locking lever and means for repulsing said locking lever with respect to said outer tube;
- lesdits moyens d'articulation desdits moyens de traction latérale comprennent un premier collier fixé sur ledit tube extérieur, comportant sur sa périphérie un œilleton d'articulation dont l'axe est perpendiculaire à l'axe principal dudit tube extérieur ; et said articulation means of said lateral traction means comprise a first collar fixed on said outer tube, comprising on its periphery a hinge eye whose axis is perpendicular to the main axis of said outer tube; and
- lesdits moyens de blocage comprennent des moyens de serrage constitués d'un ruban, câble ou fil métallique ou polymère ou d'une bande textile, entourant ledit tube intérieur,  said locking means comprise clamping means consisting of a ribbon, cable or metal or polymer wire or a textile band, surrounding said inner tube,
de telle façon que, lorsque lesdits moyens de traction latérale sont en position de blocage, lesdits moyens de blocage exercent un effort latéral sur le tube intérieur susceptible de provoquer l'immobilisation des tubes intérieur et extérieur.  such that, when said lateral traction means are in the locking position, said locking means exert a lateral force on the inner tube likely to cause the immobilization of the inner and outer tubes.
Il sera compris que ledit premier collier, comme tous les autres colliers qui vont être décrits plus loin, est apte à être assemblé au tube extérieur par tous moyens, notamment par serrage, collage ou autres.  It will be understood that said first collar, like all other collars which will be described later, is adapted to be assembled to the outer tube by any means, including clamping, gluing or other.
De préférence,  Preferably,
- le dispositif comprend des moyens de verrouillage desdits moyens de traction latérale dans sa position verrouillée, lesdits moyens de verrouillage desdits moyens de traction latérale comprenant un second collier, situé au-dessus dudit premier collier, à une distance voisine de la largeur de la main de l'opérateur, et  the device comprises means for locking said lateral traction means in its locked position, said locking means of said lateral traction means comprising a second collar situated above said first collar, at a distance close to the width of the hand of the operator, and
- lesdits moyens de blocage sont situés en-dessous de l'extrémité inférieure dudit tube extérieur, et comportant sur leur périphérie un œilleton d'articulation dont l'axe est perpendiculaire à l'axe principal dudit tube intérieur, et des moyens de prise dans la partie inférieure dudit levier, venant en prise avec les moyens de serrage au voisinage de l'œilleton d'articulation.  said blocking means are located below the lower end of said outer tube, and having on their periphery a hinge eye whose axis is perpendicular to the main axis of said inner tube, and means of engagement in the lower part of said lever, engaging with the clamping means in the vicinity of the hinge eye.
Avantageusement, ledit levier de blocage est mobile entre deux positions ; une première position, dite de déblocage, consistant à faire pivoter celui-ci sous l'effet desdits moyens de répulsion et libérant ainsi lesdits moyens de serrage entourant le tube intérieur ; une deuxième position, dite de blocage, consistant à faire pivoter celui-ci sous l'effet manuel en le rapprochant du tube extérieur, permettant le blocage de celui-ci au voisinage du deuxième collier du tube extérieur, et l'immobilisation du tube intérieur par rapport au tube extérieur grâce auxdits moyens de serrage entourant le tube intérieur. Avantageusement, ledit levier de blocage, situé dans un plan contenant les axes desdits tubes extérieur et intérieur, articulé autour de l'axe de l'œilleton d'articulation du premier collier, présente une longueur telle que la distance séparant les moyens de préhension et l'axe de l'œilleton d'articulation est supérieure à la distance séparant l'axe de l'œilleton d'articulation et les moyens de serrage. Advantageously, said locking lever is movable between two positions; a first position, called unlocking, of rotating it under the effect of said repulsion means and thus releasing said clamping means surrounding the inner tube; a second position, said locking, of rotating it under the manual effect by bringing it closer to the outer tube, allowing the blocking thereof in the vicinity of the second collar of the outer tube, and the immobilization of the inner tube relative to the outer tube by said clamping means surrounding the inner tube. Advantageously, said locking lever, located in a plane containing the axes of said outer and inner tubes, articulated around the axis of the hinge eye of the first collar, has a length such that the distance separating the gripping means and the axis of the hinge eye is greater than the distance between the axis of the hinge eye and the clamping means.
Avantageusement, lesdits moyens de répulsion du levier de blocage, sont constitués d'un ressort, dont l'axe principal est orthogonal à l'axe du tube extérieur, ledit ressort étant solidaire du levier de blocage, au voisinage supérieur du premier collier, et en compression par rapport au tube extérieur.  Advantageously, said repulsion means of the locking lever, consist of a spring whose main axis is orthogonal to the axis of the outer tube, said spring being integral with the locking lever, in the upper vicinity of the first collar, and in compression with respect to the outer tube.
Avantageusement, lesdits moyens de verrouillage dans la partie supérieure dudit levier de blocage au voisinage du second collier de serrage du tube extérieur sont constitués d'une languette élastique solidaire du deuxième collier de serrage solidaire du tube extérieur, ladite languette comportant un ergot immobilisant le levier de blocage en position dite de blocage.  Advantageously, said locking means in the upper part of said locking lever in the vicinity of the second clamping collar of the outer tube consist of an elastic tongue secured to the second clamping collar integral with the outer tube, said tongue comprising a lug immobilizing the lever locking in the so-called blocking position.
Avantageusement, lesdits moyens de verrouillage dans la partie supérieure dudit levier de blocage au voisinage du second collier du tube extérieur sont constitués d'une crémaillère à dents asymétriques, articulée au voisinage du deuxième collier solidaire du tube extérieur, le levier de blocage comportant au voisinage de son extrémité supérieure des moyens de blocage selon les positions respectives entre la crémaillère et le levier de blocage.  Advantageously, said locking means in the upper part of said locking lever in the vicinity of the second collar of the outer tube consist of a rack with asymmetrical teeth, articulated in the vicinity of the second collar integral with the outer tube, the locking lever having in the vicinity its upper end locking means according to the respective positions between the rack and the locking lever.
Avantageusement, lesdits moyens de verrouillage dans la partie supérieure dudit levier de blocage au voisinage du second collier du tube extérieur sont constitués d'une tige articulée au voisinage du deuxième collier solidaire du tube extérieur, le levier de blocage comportant au voisinage de son extrémité supérieure des moyens de blocage de ladite tige grâce à un levier secondaire, articulé au voisinage de l'extrémité supérieure du levier de blocage, et comportant un orifice de diamètre légèrement supérieur à celui de ladite tige, permettant à celle-ci de traverser ledit levier secondaire, au voisinage de sa première extrémité, lequel levier secondaire est solidaire d'un ressort situé au voisinage de sa deuxième extrémité et appuyant sur le levier de blocage. Avantageusement, le tube extérieur est un manchon de longueur limitée, coulissant sur le tube intérieur et comportant au voisinage de son extrémité inférieure, ledit premier collier, et au voisinage de son extrémité supérieure, ledit deuxième collier. Advantageously, said locking means in the upper part of said locking lever in the vicinity of the second collar of the outer tube consist of a rod articulated in the vicinity of the second collar secured to the outer tube, the locking lever having in the vicinity of its upper end. locking means of said rod by means of a secondary lever, articulated in the vicinity of the upper end of the locking lever, and having an orifice of diameter slightly greater than that of said rod, allowing it to pass through said secondary lever , near its first end, which secondary lever is secured to a spring located in the vicinity of its second end and pressing the locking lever. Advantageously, the outer tube is a sleeve of limited length, sliding on the inner tube and having in the vicinity of its lower end, said first collar, and in the vicinity of its upper end, said second collar.
Avantageusement, lesdits tubes extérieur et intérieur pourront être de section autre que circulaire, à savoir carrée, rectangulaire, ovale, polygonale.  Advantageously, said outer and inner tubes may be of other than circular section, namely square, rectangular, oval, polygonal.
Avantageusement, les moyens de serrage entourant le tube intérieur, sont situés au-dessus de l'extrémité inférieure du tube extérieur, et comportent sur leur périphérie un œilleton situé à proximité d'une fenêtre permettant la liaison de cet œilleton avec l'intérieur du tube extérieur, le levier de blocage, situé dans un plan contenant les axes desdits tubes extérieur et intérieur, étant articulé autour de l'axe de l'œilleton d'articulation du premier collier , et comportant, comme moyens de préhension, l'œilleton situé au-dessus de l'axe de l'œilleton d'articulation, ledit levier de blocage étant maintenu éloigné du tube extérieur grâce à des moyens de répulsion situés entre le levier et le tube extérieur.  Advantageously, the clamping means surrounding the inner tube, are located above the lower end of the outer tube, and have on their periphery a eyecup located near a window allowing the connection of this eyecup with the inside of the outer tube, the locking lever, located in a plane containing the axes of said outer and inner tubes, being hinged about the axis of the hinge eye of the first collar, and comprising, as gripping means, the eyepiece located above the axis of the hinge eye, said locking lever being kept away from the outer tube by means of repulsion between the lever and the outer tube.
Avantageusement, ces moyens de répulsion sont sous la forme d'une biellette articulée autour de l'œilleton situé à l'extrémité du levier de blocage, ladite biellette comportant à son autre extrémité un galet roulant sur le tube extérieur, l'axe dudit galet portant un poussoir et étant tiré par un ressort d'extension relié lui-même au premier collier.  Advantageously, these repulsion means are in the form of a rod articulated around the eyecup located at the end of the locking lever, said link having at its other end a roller rolling on the outer tube, the axis of said roller carrying a pusher and being pulled by an extension spring itself connected to the first collar.
Avantageusement, le levier de blocage comprend une branche principale et une branche secondaire, est situé éloigné de l'extrémité inférieure du tube extérieur, et est articulé autour de l'axe de l'œilleton du premier collier ; la branche secondaire est perpendiculaire à la branche principale formant ainsi un équerre, ou guignol, l'extrémité libre de ladite branche secondaire comportant un œilleton, l'extrémité libre de ladite branche principale étant au voisinage de moyens de verrouillage, au voisinage d'un second collier dudit tube extérieur ; un second levier de blocage, constitué d'une branche principale et d'une branche secondaire, est disposé à l'extrémité inférieure du tube extérieur, articulé autour de l'axe de l'œilleton d'un troisième collier, la branche secondaire de ce second levier de blocage étant perpendiculaire à la branche principale de ce second levier de blocage, formant ainsi un second guignol, l'extrémité libre de ladite branche secondaire comportant un œilleton, au voisinage duquel des moyens de prise sont solidaires des moyens de serrage entourant le tube intérieur, l'extrémité libre de ladite branche principale comportant un œilleton ; lesdits deux guignols sont montés tête bêche, leurs extrémités libres comprenant lesdits œilletons correspondants étant reliées par un câble de type Bowden traversant une gaine solidaire de la surface externe du tube extérieur, disposée selon une génératrice. Advantageously, the locking lever comprises a main branch and a secondary branch, is located remote from the lower end of the outer tube, and is articulated around the axis of the eyelet of the first collar; the secondary branch is perpendicular to the main branch thus forming a square, or horn, the free end of said secondary branch having a eyecup, the free end of said main branch being in the vicinity of locking means, in the vicinity of a second collar of said outer tube; a second locking lever, consisting of a main branch and a secondary branch, is arranged at the lower end of the outer tube, articulated around the axis of the eye of a third collar, the secondary branch of this second locking lever being perpendicular to the main branch of this second lever of blocking, thereby forming a second horn, the free end of said secondary branch having a eyecup, in the vicinity of which gripping means are integral with the clamping means surrounding the inner tube, the free end of said main branch having a eyecup; said two horns are mounted head to tail, their free ends comprising said corresponding eyecups being connected by a Bowden type cable passing through a sheath integral with the outer surface of the outer tube, arranged in a generatrix.
Avantageusement, le dispositif comporte des moyens de préhension situés au voisinage de la partie supérieure du tube extérieur, un troisième collier, situé en- dessous desdits moyens de préhension comportant un œilleton d'articulation, et une poignée, articulée autour dudit œilleton et comportant au voisinage de sa partie inférieure un œilleton, l'œilleton de la biellette et l'œilleton de la poignée étant reliés par un câble de type Bowden traversant une gaine solidaire de la surface externe du tube extérieur, disposée selon une génératrice.  Advantageously, the device comprises gripping means located in the vicinity of the upper part of the outer tube, a third collar, located below said gripping means comprising a hinge eye, and a handle articulated around said eyecup and comprising adjacent its lower part a eyecup, the eyelet of the connecting rod and the eyecup of the handle being connected by a Bowden type cable through a sheath integral with the outer surface of the outer tube, arranged in a generatrix.
Avantageusement, une chambre de compression est constituée, d'une part par le tube intérieur fermé au voisinage de son extrémité supérieure et d'autre part par le tube extérieur fermé également au voisinage de son extrémité extérieur, cette chambre comprenant un ressort monté en compression.  Advantageously, a compression chamber is constituted, on the one hand by the closed inner tube in the vicinity of its upper end and on the other hand by the closed outer tube also in the vicinity of its outer end, this chamber comprising a spring mounted in compression .
Avantageusement, la chambre de compression comprend une étanchéité assurée entre les deux tubes.  Advantageously, the compression chamber comprises a seal provided between the two tubes.
Avantageusement, la pression dans la chambre de compression est assurée par un piston pneumatique, situé entre les parties supérieures des tubes intérieur et extérieur, la pression étant réglable au moyen d'une valve située au voisinage de l'extrémité supérieure du tube extérieur.  Advantageously, the pressure in the compression chamber is provided by a pneumatic piston, located between the upper parts of the inner and outer tubes, the pressure being adjustable by means of a valve located in the vicinity of the upper end of the outer tube.
Le dispositif selon l'invention pourra être appliqué à la réalisation de bâton de randonnée ou de ski de longueur variable adaptée à la configuration du terrain, le blocage et le déblocage des deux tubes extérieur et intérieur pouvant être effectués d'une seule main.  The device according to the invention can be applied to the realization of hiking stick or ski of variable length adapted to the terrain configuration, the locking and unlocking of the two outer and inner tubes can be performed with one hand.
Le stockage d'énergie sous forme d'un ressort ou de l'air en compression pourra être appliqué à la réalisation d'une canne permettant de faciliter les mouvements d'un handicapé. D'une manière générale, le dispositif selon l'invention pourra être appliqué à la réalisation de prolongateur d'outil de longueur variable, de mâts de hauteur variable ou de tout support nécessitant le réglage de sa longueur. Energy storage in the form of a spring or air compression may be applied to the realization of a rod to facilitate the movement of a disabled. In general, the device according to the invention may be applied to the production of tool extension of variable length, masts of variable height or any support requiring adjustment of its length.
Un mode de mise en œuvre d'un dispositif selon l'invention est décrit ci-après, à titre d'exemple non limitatif, avec référence aux dessins annexés dans lesquels :  One embodiment of a device according to the invention is described below, by way of non-limiting example, with reference to the accompanying drawings in which:
Les figures la, lb, sont une représentation schématique de la structure d'un dispositif selon un premier mode de réalisation ;  Figures la, lb, are a schematic representation of the structure of a device according to a first embodiment;
Les figures 2a, 2b, sont une représentation schématique de la structure du dispositif selon un deuxième mode de réalisation ;  Figures 2a, 2b are a schematic representation of the structure of the device according to a second embodiment;
La figure 3 est une représentation schématique de la structure du dispositif selon un troisième mode de réalisation ;  Figure 3 is a schematic representation of the structure of the device according to a third embodiment;
La figure 3a est une représentation schématique de la structure du dispositif selon une variante de réalisation du troisième mode de réalisation ;  Figure 3a is a schematic representation of the structure of the device according to an alternative embodiment of the third embodiment;
La figure 4 est une représentation schématique de la structure du dispositif selon un quatrième mode de réalisation ;  Figure 4 is a schematic representation of the structure of the device according to a fourth embodiment;
La figure 5 est une représentation schématique de la structure du dispositif selon un cinquième de mode de réalisation ;  Fig. 5 is a schematic representation of the structure of the device according to a fifth embodiment;
La figure 5a est une représentation schématique de la structure du dispositif selon une variante de réalisation du cinquième de mode de réalisation ; et  Figure 5a is a schematic representation of the structure of the device according to an alternative embodiment of the fifth embodiment; and
Les figures 6a, 6b, sont une représentation schématique de la partie supérieure du dispositif selon un sixième de mode de réalisation.  Figures 6a, 6b are a schematic representation of the upper part of the device according to a sixth embodiment.
Dans l'exemple représenté sur les figures la, lb, le dispositif selon l'invention comprend :  In the example shown in FIGS. 1a, 1b, the device according to the invention comprises:
- un premier collier de serrage Cl, fixé sur un tube extérieur Tl, situé au voisinage de l'extrémité inférieure dudit tube extérieur Tl, et comportant sur sa périphérie un œilleton de serrage 01 situé au voisinage de la périphérie du tube extérieur Tl, et un œilleton d'articulation 02, distant de l'œilleton de serrage 01, dont les axes sont perpendiculaires à l'axe principal du tube extérieur X-X',  a first clamp Cl, fixed on an outer tube T1, located in the vicinity of the lower end of said outer tube T1, and having on its periphery a clamping eye 01 situated in the vicinity of the periphery of the outer tube T1, and a hinge eye 02, remote from the clamping eye 01, whose axes are perpendicular to the main axis of the outer tube X-X ',
- un second collier de serrage C2, situé au-dessus dudit premier collier de serrage Cl, à une distance voisine de la largeur de la main de l'opérateur, et comportant un œilleton de serrage 03 situé au voisinage de la périphérie du tube extérieur Tl, a second clamp C2, situated above said first clamping collar C1, at a distance close to the width of the operator's hand, and having a clamping eye 03 situated in the vicinity of the periphery of the outer tube T1,
- des moyens de serrage MS entourant un tube intérieur T2, situés en-dessous de l'extrémité inférieure dudit tube extérieur Tl, et comportant sur leur périphérie un œilleton d'articulation 04 dont l'axe est perpendiculaire à l'axe principal du tube intérieur X-X',  - MS clamping means surrounding an inner tube T2, located below the lower end of said outer tube T1, and having on their periphery a hinge eye 04 whose axis is perpendicular to the main axis of the tube X-X 'interior,
- un levier de blocage LB, situé dans un plan P contenant l'axe X-X', articulé autour de l'axe de l'œilleton 02 du premier collier de serrage Cl, et comportant des moyens de préhension PR, situés à l'extérieur dudit levier de blocage LB,  a locking lever LB, situated in a plane P containing the axis X-X ', articulated around the axis of the eyepiece 02 of the first clamping collar C1, and comprising gripping means PR, situated at a distance outside said lock lever LB,
- des moyens de prise MP dans la partie inférieure dudit levier LB avec les moyens de serrage MS au voisinage de l'œilleton 04,  - MP gripping means in the lower part of said lever LB with the clamping means MS in the vicinity of the eyelet 04,
- des moyens de verrouillage MV dans la partie supérieure dudit levier LB au voisinage du second collier de serrage C2 du tube extérieur Tl, et  locking means MV in the upper part of said lever LB in the vicinity of the second clamping collar C2 of the outer tube Tl, and
- des moyens de répulsion MR dudit levier de blocage LB, au voisinage supérieur de l'œilleton d'articulation 02 du collier de serrage Cl, par rapport au tube extérieur Tl.  - MR repulsion means of said locking lever LB, in the upper vicinity of the hinge eye 02 of the clamp Cl, relative to the outer tube Tl.
Dans l'exemple représenté sur la figure la, le dispositif selon l'invention est en position de blocage du tube intérieur T2 par rapport au tube extérieur Tl ; réciproquement, dans l'exemple représenté sur la figure lb, le dispositif selon l'invention est en position de déblocage du tube intérieur T2 par rapport au tube extérieur T 1.  In the example shown in Figure la, the device according to the invention is in the locking position of the inner tube T2 relative to the outer tube T1; reciprocally, in the example shown in Figure lb, the device according to the invention is in the unlocking position of the inner tube T2 relative to the outer tube T 1.
Les moyens de serrage MS peuvent être constitués d'un ruban métallique ou polymère ; ils peuvent également être constitués d'une bande textile.  The clamping means MS may consist of a metal or polymer ribbon; they may also consist of a textile band.
Les moyens de verrouillage MV peuvent être constitués d'une tige flexible laquelle comprend un ergot permettant de maintenir le levier de blocage LB dans position dite de blocage ; ils peuvent être également constitués d'un dispositif à crémaillère en dents de scie, facilitant l'opération de blocage d'une manière progressive.  The locking means MV may consist of a flexible rod which comprises a lug for holding the locking lever LB in said locking position; they may also consist of a rack-and-pinion device, facilitating the locking operation in a progressive manner.
Les moyens de répulsion MR peuvent être constitués d'un ressort, solidaire du tube extérieur Tl, et fonctionnant en compression. Les moyens de préhension PR peuvent être constitués d'un gainage entourant le levier de blocage LB de manière à faciliter la manipulation dudit levier. The repulsion means MR may consist of a spring, integral with the outer tube T1, and operating in compression. The gripping means PR may consist of a cladding surrounding the locking lever LB so as to facilitate the manipulation of said lever.
Ainsi, la manipulation simultanée du levier de blocage LB et des moyens de verrouillage MV, permet d'effectuer un blocage ou un déblocage du tube intérieur T2 par rapport au tube extérieur Tl, et ce d'une seule main.  Thus, the simultaneous manipulation of the locking lever LB and the locking means MV makes it possible to block or unlock the inner tube T2 relative to the outer tube T1, with one hand.
Un deuxième mode de réalisation illustré par les figures 2a, 2b, va maintenant être décrit en ce qu'il diffère du premier mode de réalisation, précédemment défini.  A second embodiment illustrated by Figures 2a, 2b will now be described in that it differs from the first embodiment, previously defined.
Le dispositif selon l'invention comprend :  The device according to the invention comprises:
- un premier collier de serrage Cl, monté sur un tube extérieur Tl, situé au voisinage de l'extrémité inférieure dudit tube extérieur Tl, et comportant sur sa périphérie un œilleton de serrage 01 situé au voisinage de la périphérie du tube extérieur Tl, et un œilleton d'articulation 02, distant de l'œilleton de serrage 01, dont les axes sont perpendiculaires à l'axe principal du tube extérieur X-X',  a first clamp Cl, mounted on an outer tube T1, located in the vicinity of the lower end of said outer tube T1, and having on its periphery a clamping eye 01 situated in the vicinity of the periphery of the outer tube T1, and a hinge eye 02, remote from the clamping eye 01, whose axes are perpendicular to the main axis of the outer tube X-X ',
- un second collier de serrage C2, situé au-dessus dudit premier collier de serrage Cl, à une distance voisine de la largeur de la main de l'opérateur, et comportant un œilleton de serrage 03 situé au voisinage de la périphérie du tube extérieur Tl,  a second clamp C2, situated above said first clamping collar C1, at a distance close to the width of the operator's hand, and comprising a clamping eye 03 situated in the vicinity of the periphery of the outer tube; Tl,
- des moyens de serrage MS entourant un tube intérieur T2, situés en-dessous de l'extrémité inférieure dudit tube extérieur Tl, et comportant sur leur périphérie un œilleton d'articulation 04 dont l'axe est perpendiculaire à l'axe principal du tube intérieur X-X',  - MS clamping means surrounding an inner tube T2, located below the lower end of said outer tube T1, and having on their periphery a hinge eye 04 whose axis is perpendicular to the main axis of the tube X-X 'interior,
- un levier de blocage LB, situé dans le plan P contenant l'axe X-X', articulé autour de l'axe de l'œilleton 02 du premier collier Cl de serrage, et comportant des moyens de préhension PR, situés à l'extérieur dudit levier de blocage LB,  a locking lever LB, located in the plane P containing the axis X-X 'articulated around the axis of the eyelet 02 of the first clamping collar Cl, and comprising gripping means PR, situated at the outside said lock lever LB,
- des moyens de prise MP dans la partie inférieure dudit levier LB avec les moyens de serrage MS au voisinage de l'œilleton 04, et  - MP engagement means in the lower portion of said lever LB with the clamping means MS in the vicinity of the eye cup 04, and
- des moyens de répulsion MR dudit levier de blocage LB, au voisinage supérieur de l'œilleton d'articulation 02, par rapport au tube extérieur Tl, et  - MR repulsion means of said locking lever LB, in the upper vicinity of the hinge eye 02, relative to the outer tube Tl, and
- des moyens de verrouillage MV dans la partie supérieure dudit levier LB au voisinage du second collier de serrage C2 du tube extérieur Tl, constitué : • d'une tige Ti, articulée à une de ses extrémités au voisinage de l'œilleton de serrage 03 du deuxième collier de serrage C, locking means MV in the upper part of said lever LB in the vicinity of the second clamping collar C2 of the outer tube T1, consisting of: A rod Ti, articulated at one of its ends in the vicinity of the clamping eye 03 of the second clamping collar C,
• d'un levier Le, articulé au voisinage de son centre autour d'un axe 05 situé au voisinage de l'extrémité libre du levier de blocage LB, dans le plan P contenant l'axe X-X', lequel levier possède un orifice au voisinage de l'extrémité supérieure traversé par ladite tige Ti, et un ressort MR, fonctionnant en compression et disposé au voisinage de l'extrémité inférieure, lequel ressort MR est en appui sur le levier de blocage LB. Le diamètre de l'orifice du levier Le est légèrement supérieur au diamètre de la tige Ti ; le levier Le, associé au ressort MR, et la tige Ti constitue une mordache permettant de bloquer le levier de blocage LB dans la position dite de blocage.  A lever Le, articulated in the vicinity of its center about an axis 05 situated in the vicinity of the free end of the locking lever LB, in the plane P containing the axis X-X ', which lever has a orifice in the vicinity of the upper end crossed by said rod Ti, and a spring MR, operating in compression and disposed in the vicinity of the lower end, which spring MR bears on the locking lever LB. The diameter of the Le lever port is slightly greater than the diameter of the Ti rod; the lever Le, associated with the spring MR, and the rod Ti is a mordache for locking the locking lever LB in the so-called blocking position.
Dans l'exemple représenté sur la figure 2a, le dispositif selon l'invention est en position de blocage du tube intérieur T2 par rapport au tube extérieur Tl ; réciproquement, dans l'exemple représenté sur la figure 2b, le dispositif selon l'invention est en position de déblocage du tube intérieur T2 par rapport au tube extérieur T 1.  In the example shown in Figure 2a, the device according to the invention is in the locked position of the inner tube T2 relative to the outer tube T1; reciprocally, in the example shown in Figure 2b, the device according to the invention is in the unlocking position of the inner tube T2 relative to the outer tube T 1.
Un troisième mode de réalisation illustré par la figure 3 va maintenant être décrit en ce qu'il diffère des modes de réalisation, précédemment définis.  A third embodiment illustrated by FIG. 3 will now be described in that it differs from previously defined embodiments.
Le dispositif selon l'invention comprend :  The device according to the invention comprises:
- un premier collier de serrage C l, monté sur un tube extérieur Tl, et comportant sur sa périphérie un œilleton de serrage 01 situé au voisinage de la périphérie du tube extérieur Tl, et un œilleton d'articulation 02, distant de l'œilleton de serrage 01, dont les axes sont perpendiculaires à l'axe principal du tube extérieur X-X',  - A first clamp C 1, mounted on an outer tube T1, and having on its periphery a clamping eye 01 located in the vicinity of the periphery of the outer tube T1, and a hinge eye 02, remote eyepiece 1, whose axes are perpendicular to the main axis of the outer tube X-X ',
- un second collier de serrage C2 situé au dessus dudit premier collier de serrage Cl, à une distance voisine de la largeur de la main de l'opérateur et comportant un œilleton de serrage 03 situé au voisinage de la périphérie du tube extérieur T 1  a second clamping collar C2 situated above said first clamping collar C1 at a distance close to the width of the operator's hand and comprising a clamping eye 03 situated in the vicinity of the periphery of the outer tube T 1
- des moyens de serrage MS entourant un tube intérieur T2, situés au-dessus du collier de serrage C 1 , et comportant sur leur périphérie un œilleton d'articulation 04 dont l'axe est perpendiculaire à l'axe principal du tube intérieur X-X', situé à proximité d'une fenêtre LU permettant la liaison de cet œilleton d'articulation 04 à l'extérieur du tube extérieur Tl, - Clamping means MS surrounding an inner tube T2, located above the clamp C 1, and having on their periphery a hinge eye 04 whose axis is perpendicular to the main axis of the inner tube X- X ', located at near a window LU allowing the connection of this hinge eye 04 to the outside of the outer tube Tl,
- un levier de blocage LB, situé dans un plan P contenant l'axe X-X' desdits tubes extérieur Tl et intérieur T2, articulé autour de l'axe de l'œilleton 02 du premier collier Cl de serrage,  a locking lever LB, situated in a plane P containing the axis X-X 'of said outer tubes T1 and inner T2, articulated about the axis of the eyelet 02 of the first clamping collar C1,
- des moyens de préhension MP situés au-dessus de l'œilleton 02, et gripping means MP located above the eyepiece 02, and
- des moyens de répulsion MR dudit levier de blocage LB, au voisinage de l'œilleton de serrage 03, permettant de maintenir le levier de blocage éloigné du tube extérieur Tl. - MR repulsion means of said locking lever LB, in the vicinity of the clamping eye 03, for keeping the locking lever away from the outer tube Tl.
L'effet de levier est par conséquent inverse de ceux décrits précédemment ; ainsi les moyens de répulsion MR, situés au voisinage de la partie supérieure du levier de blocage LB, provoque un blocage permanent du tube intérieur T2 par rapport au tube extérieur Tl ; le rapprochement du levier de blocage LB en direction du tube extérieur Tl provoque ainsi le déblocage du tube intérieur T2 par rapport au tube extérieur T 1.  Leverage is therefore the opposite of those previously described; and the repulsion means MR, located in the vicinity of the upper part of the locking lever LB, causes a permanent blocking of the inner tube T2 relative to the outer tube T1; bringing the blocking lever LB towards the outer tube T1 thus releases the inner tube T2 from the outer tube T 1.
Dans une variante illustrée par la figure 3a, le moyen de répulsion est constitué par un ressort de traction RE fixé d'une part à l'œilleton 01 du collier de serrage Cl, d'autre part à l'axe O10 d'un galet GL. Ce galet GL roule sur le tube extérieur Tl ; son axe 010 est fixé à une biellette BL dont l'autre extrémité pivote autour de l'œilleton 03 aménagé à l'extrémité du levier LB. Le ressort RE exerce ainsi une répulsion du levier LB fortement amplifiée en fin de course par un effet cosinus quand la biellette BL se rapproche de la perpendicularité au tube Tl. Une butée aménagée sur le levier LB à proximité de l'œilleton 03 limite la rotation de la biellette BL de façon à ce qu'elle reste oblique par rapport au tube Tl. Une pression de la main permet alors rapprocher le levier LB du tube T 1 et de débloquer ainsi le tube T2. Un poussoir P fixé sur l'axe du galet Gl peut faciliter si nécessaire le déblocage par une pression du pouce de l'utilisateur.  In a variant illustrated in FIG. 3a, the repulsion means is constituted by a traction spring RE fixed on the one hand to the eyelet 01 of the clamping collar C1, on the other hand to the axis O10 of a roller GL. This roller GL rolls on the outer tube Tl; its axis 010 is fixed to a link BL whose other end pivots around the eyecup 03 arranged at the end of the lever LB. The spring RE thus exerts a repulsion of the lever LB strongly amplified at the end of stroke by a cosine effect when the link BL is close to the perpendicularity to the tube Tl. A stop arranged on the lever LB near the eyecup 03 limits the rotation of the link BL so that it remains oblique with respect to the tube T1. A hand pressure then allows to bring the lever LB of the tube T 1 and thus unblock the tube T2. A pusher P fixed on the axis of the roller Gl can facilitate if necessary the release by a thumb pressure of the user.
Ce montage permet d'utiliser un ressort RE de force moyenne et de serrer facilement le levier LB contre le tube Tl pour obtenir le déblocage ; de plus, il ne nécessite pas le deuxième collier C2. Dans chacun des modes de réalisation ainsi définis dans les figures 1 à 3a, le tube extérieur Tl pourra être un manchon de longueur limitée, environ la largeur d'une main. This arrangement makes it possible to use a spring RE of medium force and to easily tighten the lever LB against the tube T1 to obtain the unlocking; moreover, it does not require the second collar C2. In each of the embodiments thus defined in Figures 1 to 3a, the outer tube T1 may be a sleeve of limited length, about the width of a hand.
Un quatrième mode de réalisation illustré par la figure 4, va maintenant être décrit en ce qu'il diffère du premier mode de réalisation, précédemment défini.  A fourth embodiment illustrated in FIG. 4 will now be described in that it differs from the first embodiment previously defined.
Un premier levier de blocage LB 1, LB2, est situé éloigné de l'extrémité inférieure du tube extérieur Tl, articulé autour de l'axe de l'œilleton 02 du premier collier de serrage Cl, comprenant en outre une branche secondaire LB2 perpendiculaire à la branche principale LB 1 formant ainsi un équerre, ou guignol Gl, l'extrémité libre de ladite branche secondaire LB2 comportant un œilleton 03, l'extrémité libre de ladite branche principale LB 1 étant au voisinage de moyens de verrouillage MV, au voisinage d'un second collier de serrage C2 dudit tube extérieur Tl; un second levier de blocage LB3, LB4, disposé à l'extrémité inférieure du tube extérieur T l, articulé autour de l'axe de l'œilleton 07 d'un troisième collier de serrage C3, comprenant également une branche principale LB3 et une branche secondaire LB4 perpendiculaire à la branche principale LB3 formant ainsi un second guignol G2, l'extrémité libre de ladite branche secondaire LB4 comportant un œilleton 05, au voisinage duquel des moyens de prise MP sont solidaires des moyens de serrage MS entourant le tube intérieur T2, l'extrémité libre de ladite branche principale LB3 comportant un œilleton 08; lesdits deux guignols respectivement Gl, G2, étant montés tête bêche, leurs extrémités libres 03, 08, étant reliées par un câble CA de type BOWDEN traversant une gaine GA solidaire de la surface externe du tube extérieur Tl, disposée selon une génératrice.  A first locking lever LB 1, LB2, is located remote from the lower end of the outer tube T1, articulated around the axis of the eyelet 02 of the first clamping collar C1, further comprising a secondary branch LB2 perpendicular to the main branch LB 1 thus forming a bracket, or horn G1, the free end of said secondary branch LB2 having an eyelet 03, the free end of said main branch LB 1 being in the vicinity of locking means MV, in the vicinity of a second clamp C2 of said outer tube T1; a second locking lever LB3, LB4, arranged at the lower end of the outer tube T 1, articulated around the axis of the eyelet 07 of a third clamp C3, also comprising a main branch LB3 and a branch secondary LB4 perpendicular to the main branch LB3 thus forming a second horn G2, the free end of said secondary branch LB4 having a eyepiece 05, in the vicinity of which MP engagement means are integral with the clamping means MS surrounding the inner tube T2, the free end of said main branch LB3 having a eyecup 08; said two horns respectively Gl, G2, being mounted head to tail, their free ends 03, 08, being connected by a BOWDEN type AC cable passing through a sheath GA integral with the outer surface of the outer tube T1, arranged in a generatrix.
Ainsi pour en faciliter l'utilisation du dispositif selon l'invention, la commande manuelle du blocage-déblocage du coulissement est ici placée à l'extrémité haute du tube extérieur Tl au moyen d'un renvoi par câble CA de BOWDEN. Les ouvriers effectuant par exemple un peinturage au rouleau ou un lavage utilisent beaucoup des prolongateurs pour atteindre des zones peu accessibles ; pouvoir en modifier facilement la longueur avec une seule main est un avantage. Les randonneurs en terrain accidenté ont souvent besoin de changer la longueur de leurs bâtons. Par exemple, lorsqu'ils parcourent un sentier en lacets, le bâton amont doit être beaucoup plus court que le bâton aval à cause du dévers ; il faut les échanger ou les régler à chaque lacet. Thus, to facilitate the use of the device according to the invention, the manual control of the blocking-unlocking of the slide is here placed at the upper end of the outer tube T1 by means of a BOWDEN AC cable return. Workers doing roller painting or washing, for example, use a lot of extensions to reach inaccessible areas; being able to easily change the length with one hand is an advantage. Hikers in rough terrain often need to change the length of their poles. For example, when walking on a winding trail, the upstream stick must be much shorter than the downstream stick because of the cant; they must be exchanged or adjusted at each lace.
Un cinquième mode de réalisation illustré par la figure 5, va maintenant être décrit en ce qu'il diffère des modes de réalisation, précédemment définis.  A fifth embodiment illustrated in FIG. 5 will now be described in that it differs from previously defined embodiments.
Des moyens de serrage MS entourant le tube intérieur T2, sont situés au- dessus de l'extrémité inférieure du tube extérieur Tl, et comportent sur leur périphérie un œilleton 04 situé à proximité d'une fenêtre LU permettant la liaison de ces moyens MS au tube extérieur Tl, un levier de blocage LB, situé dans ledit plan P contenant l'axe X-X' desdits tubes extérieur Tl et intérieur T2, étant articulé autour de l'axe de l'œilleton 02 d'un premier collier de serrage Cl, ledit levier de blocage LB étant maintenu écarté du tube extérieur Tl grâce à des moyens de répulsion, pouvant être soit un ressort, dans le cas de la figure 5, soit une biellette BL associée à un galet GL et un ressort RE, à l'instar de la variante de réalisation décrite plus haut en référence à la figure 3 a.  Clamping means MS surrounding the inner tube T2, are located above the lower end of the outer tube T1, and have on their periphery a eyelet 04 located near a window LU allowing the connection of these means MS to outer tube T1, a locking lever LB, located in said plane P containing the axis XX 'of said outer tubes T1 and inner T2, being hinged about the axis of the eyelet 02 of a first clamping collar C1, said locking lever LB being kept away from the outer tube T1 by means of repulsion, which can be either a spring, in the case of Figure 5, or a rod BL associated with a roller GL and a spring RE, to the as in the variant embodiment described above with reference to FIG. 3a.
Comme le montre la figure 5a, le dispositif comporte ladite biellette BL, articulée autour d'un œilleton 03 placé à l'extrémité du levier LB opposée à l'œilleton 02, ladite biellette étant munie à son autre extrémité d'un galet GL articulé sur un œilleton et roulant sur le tube extérieur Tl et étant tirée vers le bas par un ressort d'extension RE, ledit ressort étant accroché à l'œilleton du galet GL et à l'œilleton 01 du collier de fixation C 1.  As shown in Figure 5a, the device comprises said link BL, articulated around a eyelet 03 placed at the end of the lever LB opposite the eyelet 02, said link being provided at its other end with a roller GL articulated on a eyecup and rolling on the outer tube Tl and being pulled down by an extension spring RE, said spring being hooked to the eyecup of the roller GL and to the eyelet 01 of the clamp C 1.
Dans les deux formes de réalisations des figures 5 et 5a, des moyens de préhension PR sont situés au voisinage de la partie supérieure du tube extérieur Tl, un deuxième collier de serrage C3 est situé en dessous desdits moyens de préhension PR et une poignée PO, articulée par un œilleton 05 audit collier C3, comporte, au voisinage de sa partie inférieure, un œilleton 07. Cet œilleton 07 et l'œilleton O10 de la biellette BL sont reliés par un câble CA de type Bowden traversant une gaine GA solidaire de la surface externe du tube extérieur Tl, disposée selon une génératrice.  In the two embodiments of FIGS. 5 and 5a, gripping means PR are located in the vicinity of the upper part of the outer tube T1, a second clamping collar C3 is located below said gripping means PR and a handle PO, articulated by a eyelet 05 to said collar C3, has, in the vicinity of its lower part, a eyecup 07. This eyepiece 07 and the eyelet O10 of the rod BL are connected by a Bowden type AC cable passing through a sheath GA integral with the outer surface of the outer tube T1, arranged in a generatrix.
Pour la variante de la figure 5a, les moyens de répulsion comportant la biellette BL et le galet GL situés au voisinage de la partie supérieure du levier de blocage LB, provoquent un blocage permanent du tube intérieur T2 par rapport au tube extérieur Tl du fait de la traction du ressort RE ; le rapprochement de la poignée PO en direction du tube extérieur Tl permet par l'effet de traction sur le câble CA l'inclinaison de la biellette BL et donc le rapprochement du levier de blocage LB en direction du tube extérieur Tl, et ainsi le déblocage du tube intérieur T2 par rapport au tube extérieur T 1. For the variant of FIG. 5a, the repulsion means comprising the link BL and the roller GL located in the vicinity of the upper part of the locking lever LB, cause a permanent blocking of the inner tube T2 relative to the outer tube Tl due to the traction of the spring RE; the bringing together of the handle PO towards the outer tube T1 makes it possible, by the effect of traction on the cable CA, the inclination of the link BL and thus the bringing together of the locking lever LB towards the outer tube T1, and thus the unlocking of the inner tube T2 relative to the outer tube T 1.
Un sixième mode de réalisation illustré par les figures 6a, 6b, va maintenant être décrit et peut être appliqué aux différents modes de réalisation décrits précédemment.  A sixth embodiment illustrated by FIGS. 6a and 6b will now be described and may be applied to the various embodiments described above.
Une chambre de compression CP constituée, d'une part par le tube intérieur T2 fermé au voisinage de son extrémité supérieure et d'autre part par le tube extérieur Tl fermé également au voisinage de son extrémité supérieure, comprend un ressort RE monté en compression.  A compression chamber CP constituted on the one hand by the inner tube T2 closed near its upper end and on the other by the outer tube T1 also closed near its upper end, comprises a spring RE mounted in compression.
La chambre de compression CP constituée, d'une part par le tube intérieur T2 fermé au voisinage de son extrémité supérieure et d'autre part par le tube extérieur Tl fermé également au voisinage de son extrémité supérieure, une étanchéité étant assurée entre lesdits tubes Tl, T2.  The compression chamber CP constituted, on the one hand by the inner tube T2 closed in the vicinity of its upper end and on the other hand by the outer tube T1 also closed in the vicinity of its upper end, a seal being provided between said tubes T1 , T2.
La pression dans ladite chambre de compression CP est assurée par un piston pneumatique PI, situé entre lesdites parties supérieures des tubes Tl, T2, la pression étant réglable au moyen d'une valve VA située au voisinage de l'extrémité supérieure du tube extérieur Tl.  The pressure in said compression chamber CP is provided by a pneumatic piston PI, situated between said upper parts of the tubes T1, T2, the pressure being adjustable by means of a valve VA situated in the vicinity of the upper end of the outer tube T1. .
Les figures 6a et 6b représentent ainsi l'adjonction d'un ressort mécanique RE ou un piston pneumatique PI pour modifier facilement la longueur et éventuellement stocker puis restituer l'énergie de compression.  FIGS. 6a and 6b thus represent the addition of a mechanical spring RE or a pneumatic piston PI for easily modifying the length and possibly storing and then restoring the compression energy.
Le piston pneumatique PI peut être réglé en pression suivant le poids et la force de l'utilisateur grâce à la valve VA solidaire de la partie supérieure du tube extérieur Tl. Le volume d'air formant ressort peut être aussi fortement augmenté si un orifice est pratiqué dans la partie supérieure du tube intérieur T2 et si ce tube intérieur T2 est fermé à son extrémité inférieure. Ainsi, la force d'appui procurée par l'appareil varie beaucoup moins entre les positions extrêmes.  The pneumatic piston PI can be adjusted in pressure according to the weight and the force of the user thanks to the valve VA secured to the upper part of the outer tube Tl. The volume of spring air can be increased as well if an orifice is made in the upper part of the inner tube T2 and if the inner tube T2 is closed at its lower end. Thus, the support force provided by the device varies much less between the extreme positions.
Ainsi le dispositif pour le blocage et le déblocage de tubes télescopiques, décrit ci-dessus selon différents modes de réalisation, s'applique aux bâtons de randonnée, aux cannes pour handicapés, aux prolongateurs de manches d'outils, aux mâts de longueur variable, le blocage et le déblocage pouvant être effectués d'une seule main ; par ailleurs le stockage d'énergie mécanique ou pneumatique, permettant de faciliter le réglage des positions respectives des tubes télescopiques, peut être appliqué notamment à la réalisation de cannes pour handicapés. Thus the device for locking and unblocking telescopic tubes, described above according to different embodiments, applies to the sticks of hiking, disabled walking sticks, tool handle extensions, variable length masts, locking and unblocking can be done with one hand; moreover, the storage of mechanical or pneumatic energy, making it possible to facilitate the adjustment of the respective positions of the telescopic tubes, can be applied in particular to the production of canes for the disabled.

Claims

REVENDICATIONS
1. Dispositif pour le blocage d'un premier tube extérieur (Tl) et d'un deuxième tube intérieur (T2) ou d'une tige pleine, montés télescopiques entre eux, comprenant :  1. Device for locking a first outer tube (Tl) and a second inner tube (T2) or a solid rod, telescopically mounted together, comprising:
- des moyens de traction latérale (LB, PR, MR),  lateral traction means (LB, PR, MR),
- des moyens d'articulation (Cl, 02) desdits moyens de traction latérale (LB, PR, MR), entre une position libre et une position de blocage, - articulation means (C1, 02) of said lateral traction means (LB, PR, MR), between a free position and a locking position,
- des moyens de blocage (MS, MP, 04) : blocking means (MS, MP, 04):
• articulés auxdits moyens de traction latérale (LB, PR, MR), · montés longitudinalement coulissant relativement audit tube intérieur (T2),  Articulated to said lateral traction means (LB, PR, MR), mounted longitudinally sliding relative to said inner tube (T2),
caractérisé en ce que :  characterized in that
- lesdits moyens de traction latérale (LB, PR, MR) comprennent un levier de blocage (LB), des moyens de préhension (PR) situés à l'extérieur dudit levier de blocage (LB) et des moyens de répulsion (MR) dudit levier de blocage (LB) par rapport audit tube extérieur (Tl),  said lateral traction means (LB, PR, MR) comprise a locking lever (LB), gripping means (PR) located outside said locking lever (LB) and repulsion means (MR) of said locking lever (LB) with respect to said outer tube (Tl),
- lesdits moyens d'articulation (Cl, 02) desdits moyens de traction latérale (LB, PR, MR), comprennent un premier collier (Cl), fixé sur ledit tube extérieur (Tl), comportant sur sa périphérie un œilleton d'articulation (02), dont l'axe est perpendiculaire à l'axe principal (Χ-Χ') dudit tube extérieur (Tl) ; et  said articulation means (C1, 02) of said lateral traction means (LB, PR, MR) comprise a first collar (Cl), fixed on said outer tube (Tl), comprising on its periphery a hinge eye (02), whose axis is perpendicular to the main axis (Χ-Χ ') of said outer tube (Tl); and
- lesdits moyens de blocage (MS, MP, 04) comprennent des moyens de serrage (MS) constitués d'un ruban, câble ou fil métallique ou polymère ou d'une bande textile, entourant ledit tube intérieur (T2),  said blocking means (MS, MP, 04) comprise clamping means (MS) consisting of a ribbon, cable or metal or polymer wire or a textile strip, surrounding said inner tube (T2),
de telle façon que lorsque lesdits moyens de traction latérale (LB, PR, MR) sont en position de blocage, lesdits moyens de blocage (MS, MP, 04) exercent un effort latéral sur ledit tube intérieur (T2) susceptible de provoquer l'immobilisation des tubes intérieur (T2) et extérieur (Tl).  such that when said lateral traction means (LB, PR, MR) are in the locked position, said blocking means (MS, MP, 04) exert a lateral force on said inner tube (T2) capable of causing the immobilization of the inner (T2) and outer (Tl) tubes.
2. Dispositif selon la revendication 1, 2. Device according to claim 1,
caractérisé : - en ce qu'il comprend des moyens de verrouillage (MV, C2) desdits moyens de traction latérale (LB, PR, MR), dans la position de blocage du dispositif, lesdits moyens de verrouillage (MV, C2) desdits moyens de traction latérale (LB, PR, MR), comprenant un second collier (C2), situé au-dessus dudit premier collier (Cl), à une distance voisine de la largeur de la main de l'opérateur, et characterized in that it comprises locking means (MV, C2) of said lateral traction means (LB, PR, MR), in the locking position of the device, said locking means (MV, C2) of said traction means; lateral (LB, PR, MR), comprising a second collar (C2), located above said first collar (Cl), at a distance close to the width of the hand of the operator, and
- en ce que lesdits moyens de blocage (MS, MP, 04) sont situés en-dessous de l'extrémité inférieure dudit tube extérieur (Tl), et comportent sur leur périphérie un œilleton d'articulation (04) dont l'axe est perpendiculaire à l'axe principal dudit tube intérieur (Χ-Χ'), et des moyens de prise (MP) dans la partie inférieure dudit levier (LB), venant en prise avec les moyens de serrage (MS) au voisinage de l'œilleton d'articulation (04).  in that said blocking means (MS, MP, 04) are located below the lower end of said outer tube (Tl), and comprise on their periphery a hinge eye (04) whose axis is perpendicular to the main axis of said inner tube (Χ-Χ '), and setting means (MP) in the lower part of said lever (LB), engaging with the clamping means (MS) in the vicinity of the hinge eye (04).
3. Dispositif selon la revendication 2, 3. Device according to claim 2,
caractérisé en ce que ledit levier de blocage (LB) est mobile entre deux positions ; une première position, dite de déblocage, consistant à faire pivoter celui-ci sous l'effet desdits moyens de répulsion (MR) et libérant ainsi lesdits moyens de serrage (MS) entourant le tube intérieur (T2) ; une deuxième position, dite de blocage, consistant à faire pivoter celui-ci sous l'effet manuel en le rapprochant du tube extérieur (Tl), permettant le blocage de celui-ci au voisinage du deuxième collier (C2) du tube extérieur (Tl), et l'immobilisation du tube intérieur (T2) par rapport au tube extérieur (Tl) grâce auxdits moyens de serrage (MS) entourant le tube intérieur (T2). characterized in that said lock lever (LB) is movable between two positions; a first position, said deblocking, of rotating it under the effect of said repulsion means (MR) and thus releasing said clamping means (MS) surrounding the inner tube (T2); a second position, said locking, of rotating it under the manual effect by bringing it closer to the outer tube (Tl), allowing the blocking thereof in the vicinity of the second collar (C2) of the outer tube (Tl ), and the immobilization of the inner tube (T2) relative to the outer tube (T1) by said clamping means (MS) surrounding the inner tube (T2).
4. Dispositif selon la revendication 1, 4. Device according to claim 1,
caractérisé en ce que ledit levier de blocage (LB), situé dans un plan (P) contenant les axes (Χ-Χ') desdits tubes extérieur (Tl) et intérieur (T2), articulé autour de l'axe de l'œilleton d'articulation (02) du premier collier (Cl), présente une longueur telle que la distance séparant les moyens de préhension (PR) et l'axe de l'œilleton d'articulation (02) est supérieure à la distance séparant l'axe de l'œilleton d'articulation (02) et les moyens de serrage (MS).  characterized in that said locking lever (LB), located in a plane (P) containing the axes (Χ-Χ ') of said outer tubes (T1) and inner (T2), articulated around the axis of the eyepiece articulation (02) of the first collar (Cl), has a length such that the distance separating the gripping means (PR) and the axis of the hinge eye (02) is greater than the distance separating the axis of the hinge eye (02) and the clamping means (MS).
5. Dispositif selon la revendication 1, caractérisé en ce que lesdits moyens de répulsion (MR) du levier de blocage (LB), sont constitués d'un ressort, dont l'axe principal est orthogonal à l'axe (Χ-Χ') du tube extérieur (Tl), ledit ressort étant solidaire du levier de blocage (LB), au voisinage supérieur du premier collier (Cl), et en compression par rapport au tube extérieur (Tl). 5. Device according to claim 1, characterized in that said repulsion means (MR) of the locking lever (LB) consist of a spring whose main axis is orthogonal to the axis (Χ-Χ ') of the outer tube (Tl), said spring being integral with the locking lever (LB), in the upper vicinity of the first collar (Cl), and in compression relative to the outer tube (T1).
6. Dispositif selon les revendications 1 et 2, 6. Device according to claims 1 and 2,
caractérisé en ce que lesdits moyens de verrouillage (MV) dans la partie supérieure dudit levier de blocage (LB) au voisinage du second collier (C2) du tube extérieur (Tl) sont constitués d'une languette élastique solidaire du deuxième collier (C2) solidaire du tube extérieur (Tl), ladite languette comportant un ergot immobilisant le levier de blocage (LB) en position dite de blocage.  characterized in that said locking means (MV) in the upper part of said locking lever (LB) in the vicinity of the second collar (C2) of the outer tube (Tl) consist of an elastic tongue integral with the second collar (C2) secured to the outer tube (Tl), said tongue having a lug immobilizing the locking lever (LB) in said locking position.
7. Dispositif selon les revendications 1 et 2, 7. Device according to claims 1 and 2,
caractérisé en ce que lesdits moyens de verrouillage (MV) dans la partie supérieure dudit levier de blocage (LB) au voisinage du second collier (C2) du tube extérieur (Tl) sont constitués d'une crémaillère à dents asymétriques, articulée au voisinage du deuxième collier (C2) solidaire du tube extérieur (Tl), le levier de blocage (LB) comportant au voisinage de son extrémité supérieure des moyens de blocage selon les positions respectives entre la crémaillère et le levier de blocage (LB).  characterized in that said locking means (MV) in the upper part of said locking lever (LB) in the vicinity of the second collar (C2) of the outer tube (Tl) consist of a rack with asymmetrical teeth, articulated in the vicinity of the second collar (C2) secured to the outer tube (Tl), the locking lever (LB) having in the vicinity of its upper end locking means according to the respective positions between the rack and the locking lever (LB).
8. Dispositif selon les revendications 1 et 2, 8. Device according to claims 1 and 2,
caractérisé en ce que lesdits moyens de verrouillage (MV) dans la partie supérieure dudit levier de blocage (LB) au voisinage du second collier (C2) du tube extérieur (Tl) sont constitués d'une tige (Ti), articulée au voisinage du deuxième collier (C2) solidaire du tube extérieur (Tl), le levier de blocage (LB) comportant au voisinage de son extrémité supérieure des moyens de blocage de ladite tige (Ti) grâce à un levier secondaire (Le), articulé au voisinage de l'extrémité supérieure du levier de blocage (LB), et comportant un orifice de diamètre légèrement supérieur à celui de ladite tige (Ti), permettant à celle-ci de traverser ledit levier secondaire (Le), au voisinage de sa première extrémité, lequel levier secondaire (Le) est solidaire d'un ressort (MR) situé au voisinage de sa deuxième extrémité et appuyant sur le levier de blocage (LB). characterized in that said locking means (MV) in the upper part of said locking lever (LB) in the vicinity of the second collar (C2) of the outer tube (Tl) consist of a rod (Ti) hinged in the vicinity of the second collar (C2) secured to the outer tube (Tl), the locking lever (LB) having in the vicinity of its upper end locking means of said rod (Ti) through a secondary lever (Le) articulated in the vicinity of the upper end of the locking lever (LB), and having an orifice of diameter slightly greater than that of said rod (Ti), allowing it to pass through said secondary lever (Le), near its first end, which secondary lever (Le) is secured to a spring (MR) located near its second end and pressing the locking lever (LB).
9. Dispositif selon la revendication 1, 9. Device according to claim 1,
caractérisé en ce que ledit tube extérieur (Tl) est un manchon de longueur limitée, coulissant sur le tube intérieur T2 et comportant au voisinage de son extrémité inférieure, ledit premier collier (Cl), et au voisinage de son extrémité supérieure, ledit deuxième collier (Cl).  characterized in that said outer tube (Tl) is a sleeve of limited length, sliding on the inner tube T2 and having in the vicinity of its lower end, said first collar (Cl), and in the vicinity of its upper end, said second collar (Cl).
10. Dispositif selon la revendication 1, Device according to claim 1,
caractérisé en ce que les moyens de serrage (MS) entourant le tube intérieur (T2), sont situés au-dessus de l'extrémité inférieure du tube extérieur (Tl), et comportent sur leur périphérie un œilleton (08) situé à proximité d'une fenêtre (LU) permettant la liaison de cet œilleton (08) avec l'intérieur du tube extérieur (Tl), le levier de blocage (LB), situé dans ledit plan (P) contenant l'axe (Χ-Χ') desdits tubes extérieur (Tl) et intérieur (T2), étant articulé autour de l'axe de l'œilleton d'articulation (02) du premier collier (Cl), et comportant, comme moyens de préhension (MP), l'œilleton (08) situé au-dessus de l'axe de l'œilleton d'articulation (02), ledit levier de blocage (LB) étant maintenu éloigné du tube extérieur (Tl) grâce à des moyens de répulsion (MR) situés entre le levier de blocage (LB) et le tube extérieur (Tl).  characterized in that the clamping means (MS) surrounding the inner tube (T2) are located above the lower end of the outer tube (T1), and have on their periphery an eyelet (08) located near the a window (LU) allowing the connection of this eyecup (08) with the inside of the outer tube (Tl), the locking lever (LB) situated in the said plane (P) containing the axis (Χ-Χ ') ) said outer tubes (T1) and inner (T2), being articulated about the axis of the hinge eye (02) of the first collar (Cl), and comprising, as gripping means (MP), eyecup (08) located above the axis of the hinge eye (02), said locking lever (LB) being kept away from the outer tube (Tl) by means of repulsion (MR) located between the locking lever (LB) and the outer tube (Tl).
11. Dispositif selon la revendication 10, 11. Device according to claim 10,
caractérisé en ce que les moyens de répulsion sont sous la forme d'une biellette (BL) articulée autour de l'œilleton (03) situé à l'extrémité du levier de blocage (LB), ladite biellette (BL) comportant à son autre extrémité un galet (GL) roulant sur le tube extérieur (Tl), l'axe dudit galet portant un poussoir (P) et étant tiré par un ressort d'extension (RE) relié lui-même au premier collier (Cl).  characterized in that the repulsion means are in the form of a link (BL) articulated around the eyecup (03) located at the end of the locking lever (LB), said link (BL) comprising at its other end a roller (GL) rolling on the outer tube (Tl), the axis of said roller carrying a pusher (P) and being pulled by an extension spring (RE) itself connected to the first collar (Cl).
12. Dispositif selon la revendication 2, Device according to claim 2,
caractérisé en ce que ledit levier de blocage (LB1, LB2) comprend une branche principale (LB1) et une branche secondaire (LB2), est situé éloigné de l'extrémité inférieure du tube extérieur (Tl), et est articulé autour de l'axe de l'œilleton (02) du premier collier (Cl) ; la branche secondaire (LB2) est perpendiculaire à la branche principale (LB 1) formant ainsi un équerre, ou guignol (Gl), l'extrémité libre de ladite branche secondaire (LB2) comportant un œilleton (03), l'extrémité libre de ladite branche principale (LB 1) étant au voisinage de moyens de verrouillage (MV), au voisinage d'un second collier (C2) dudit tube extérieur (Tl) ; un second levier de blocage (LB3, LB4), constitué d'une branche principale et d'une branche secondaire, est disposé à l'extrémité inférieure du tube extérieur (Tl), articulé autour de l'axe de l'œilleton (07) d'un troisième collier (C3), la branche secondaire de ce second levier de blocage étant perpendiculaire à la branche principale de ce second levier de blocage, formant ainsi un second guignol (G2), l'extrémité libre de ladite branche secondaire (LB4) comportant un œilleton (05), au voisinage duquel des moyens de prise (MP) sont solidaires des moyens de serrage (MS) entourant le tube intérieur (T2), l'extrémité libre de ladite branche principale (LB3) comportant un œilleton (08) ; lesdits deux guignols (Gl, G2) sont montés tête bêche, leurs extrémités libres comprenant lesdits œilletons (03, 08) étant reliées par un câble (CA) de type Bowden traversant une gaine (GA) solidaire de la surface externe du tube extérieur (Tl), disposée selon une génératrice. characterized in that said locking lever (LB1, LB2) comprises a main branch (LB1) and a secondary branch (LB2), is located remote from the lower end of the outer tube (Tl), and is articulated around the axis of eyecup (02) of the first collar (Cl); the secondary branch (LB2) is perpendicular to the main branch (LB 1) thus forming a bracket, or horn (Gl), the free end of said secondary branch (LB2) having an eyecup (03), the free end of said main branch (LB 1) being in the vicinity of locking means (MV), in the vicinity of a second collar (C2) of said outer tube (Tl); a second locking lever (LB3, LB4), consisting of a main branch and a secondary branch, is arranged at the lower end of the outer tube (Tl) articulated around the axis of the eyecup (07 ) a third collar (C3), the secondary branch of the second locking lever being perpendicular to the main branch of the second locking lever, thus forming a second horn (G2), the free end of said secondary branch ( LB4) comprising an eyecup (05), in the vicinity of which gripping means (MP) are integral with the clamping means (MS) surrounding the inner tube (T2), the free end of said main branch (LB3) comprising an eyecup (08); said two horns (Gl, G2) are mounted head-to-tail, their free ends comprising said eyecups (03, 08) being connected by a Bowden-type cable (CA) passing through a sheath (GA) integral with the outer surface of the outer tube ( Tl), arranged in a generatrix.
13. Dispositif selon la revendication 11, 13. Device according to claim 11,
caractérisé en ce qu'il comporte des moyens de préhension (PR) situés au voisinage de la partie supérieure du tube extérieur (Tl), un troisième collier (C3), situé en-dessous desdits moyens de préhension (PR) comportant un œilleton d'articulation (05), et une poignée (PO), articulée autour dudit œilleton (05) et comportant au voisinage de sa partie inférieure un œilleton (07), l'œilleton (03) de la biellette (BL) et l'œilleton 07 de la poignée (PO) étant reliés par un câble (CA) de type BOWDEN traversant une gaine (GA) solidaire de la surface externe du tube extérieur (Tl), disposée selon une génératrice.  characterized in that it comprises gripping means (PR) located in the vicinity of the upper part of the outer tube (Tl), a third collar (C3), located beneath said gripping means (PR) comprising an eyelet d articulation (05), and a handle (PO), articulated around said eyecup (05) and having in the vicinity of its lower part an eyecup (07), the eyelet (03) of the link (BL) and the eyecup 07 of the handle (PO) being connected by a cable (CA) type BOWDEN through a sheath (GA) secured to the outer surface of the outer tube (Tl), arranged in a generatrix.
14. Dispositif selon la revendication 1, 14. Device according to claim 1,
caractérisé en ce qu'une chambre de compression (CP) est constituée, d'une part par le tube intérieur (T2) fermé au voisinage de son extrémité supérieure et d'autre part par le tube extérieur (Tl) fermé également au voisinage de son extrémité supérieure, cette chambre comprenant un ressort (RE) monté en compression. characterized in that a compression chamber (CP) is formed on the one hand by the inner tube (T2) closed near its upper end and on the other hand by the outer tube (Tl) also closed near its upper end, this chamber comprising a spring (RE) mounted in compression.
15. Dispositif selon la revendication 14, Device according to claim 14,
caractérisé en ce que la chambre de compression (CP) comprend une étanchéité entre lesdits tubes (Tl, T2).  characterized in that the compression chamber (CP) comprises a seal between said tubes (T1, T2).
16. Dispositif selon la revendication 14, Device according to claim 14,
caractérisé en ce que la pression dans ladite chambre de compression (CP) est assurée par un piston pneumatique (PI), situé entre lesdites parties supérieures des tubes (Tl, T2), la pression étant réglable au moyen d'une valve (VA) située au voisinage de l'extrémité supérieure du tube extérieur (Tl).  characterized in that the pressure in said compression chamber (CP) is provided by a pneumatic piston (PI) located between said upper portions of the tubes (T1, T2), the pressure being adjustable by means of a valve (VA) located near the upper end of the outer tube (Tl).
PCT/IB2016/050668 2015-02-10 2016-02-09 Device for immobilizing an outer first tube and an inner second tube or a solid rod which are mounted telescopically with respect to one another WO2016128887A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1551050 2015-02-10
FR1551050A FR3032496B1 (en) 2015-02-10 2015-02-10 DEVICE FOR BLOCKING A FIRST OUTER TUBE AND A SECOND INTERNAL TELESCOPIC TUBE BETWEEN THEM.

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WO2016128887A1 true WO2016128887A1 (en) 2016-08-18

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WO (1) WO2016128887A1 (en)

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Publication number Priority date Publication date Assignee Title
CN110548262B (en) * 2019-08-21 2024-07-26 宁海兴达旅游用品有限公司 Automatic telescopic rod crutch

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DE202009004370U1 (en) 2008-04-04 2009-07-09 Lekisport Ag Length adjustable pole and clamping device for it
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US20090245927A1 (en) 2000-09-03 2009-10-01 Ragnar Stahle Device for relative fixing of elements telescopically displaced in each other
US20010027802A1 (en) * 2001-02-24 2001-10-11 Mcgrath Thomas Francis Walking aid
US20020185581A1 (en) * 2001-06-11 2002-12-12 Trask Brian C. Bicycle seat elevation adjuster
EP1327783A2 (en) 2002-01-09 2003-07-16 Moll System- Und Funktionsmöbel Gmbh Telescopic assembly, especially for the furniture industry
US20030152419A1 (en) 2002-02-13 2003-08-14 Chi Yu Steel Co., Ltd. Joint for a telescoping rod
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FR3032496A1 (en) 2016-08-12

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