EP2586931B1 - Tool for attachment to an elongate element for a scaffolding device - Google Patents

Tool for attachment to an elongate element for a scaffolding device Download PDF

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Publication number
EP2586931B1
EP2586931B1 EP20120190854 EP12190854A EP2586931B1 EP 2586931 B1 EP2586931 B1 EP 2586931B1 EP 20120190854 EP20120190854 EP 20120190854 EP 12190854 A EP12190854 A EP 12190854A EP 2586931 B1 EP2586931 B1 EP 2586931B1
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EP
European Patent Office
Prior art keywords
handle
instrument
support member
bearing member
instrument according
Prior art date
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Active
Application number
EP20120190854
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German (de)
French (fr)
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EP2586931A1 (en
Inventor
Eric Sta
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tubesca Comabi SAS
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Tubesca Comabi SAS
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Publication date
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Publication of EP2586931A1 publication Critical patent/EP2586931A1/en
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Publication of EP2586931B1 publication Critical patent/EP2586931B1/en
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Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G5/00—Component parts or accessories for scaffolds
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G5/00—Component parts or accessories for scaffolds
    • E04G5/007—Devices and methods for erecting scaffolds, e.g. automatic scaffold erectors
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G5/00—Component parts or accessories for scaffolds
    • E04G5/14—Railings
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G5/00—Component parts or accessories for scaffolds
    • E04G5/14—Railings
    • E04G5/147—Railings specially adapted for mounting prior to the mounting of the platform

Definitions

  • the invention relates to an attachment instrument to an elongated element, particularly of smooth type, for a scaffolding device, in particular for the secure mounting of a scaffold.
  • Scaffolding means scaffolding in the traditional sense of the term as a step, a stepladder, a walkway, a platform, a shelf ladder, or the like.
  • the scaffolding devices are structures composed of elongated elements arranged in bar or similar elongated elements.
  • the scaffoldings are mounted on site by assembling the bars together, to allow an operator to access a high position of the building, in particular facade.
  • the scaffolding is organized to allow assembly and disassembly on site as easily and as quickly as possible.
  • the bars constituting the scaffolding are, for example, uprights, steps of intercrossing the uprights with each other, bracing bars, smooth and / or under-slats, reinforcement and / or support bars, or bars. Stabilization of the scaffolding on the ground.
  • the bars come from sections of indifferently circular or polygonal section, square or rectangular in particular.
  • the bars are assembled together by fasteners organized to be jointly engaged on two bars to assemble. At least one end of a bar is commonly equipped with a fastener for engagement to a bar next to the scaffold. This element may in particular have a general hook shape.
  • the document FR 2 922 929 describes an example of a bar having two fixing elements at its respective ends.
  • Each attachment member has a fixed hook portion and a movable hook portion.
  • One of the movable hooks has an orifice in which a rod secured to a diagonal bar can be introduced.
  • the operator can unlock this end of the bar by inserting the bar into this opening, raising this part of the movable hook and dragging the bar so as to remove it from the bar. scaffolding device.
  • the manipulation of the rail by means of the diagonal bar is relatively delicate, in particular, the operator must handle the diagonal bar with great care so as to prevent the rail from escaping.
  • poles having at their end a C-shaped open part that can support a rail without attaching the rail to this open C-shaped part so that the rail can escape and fall on the operator. (cf. DE 102007 011 716 A1 ).
  • a problem lies in the secure handling of different bars and / or different sets (such as sets of railings that include several bars already assembled in them) of the scaffold to be installed on site. It is desirable that the erection and dismantling of the scaffolding takes place under conditions of safety optimized for an operator performing these operations, and in particular it is desirable to avoid the fall of the bars, for example rails, and / or different sets when handling them.
  • the gripping tool for example arranged in clamp, may be shaped to rigidly hold the elongated element in its closed position. In other words, in its closed position, the gripping tool does not allow movement of the elongated element relative to the instrument.
  • the gripping tool can be movable between the open position for the introduction or extraction of said elongated member and the closed position, in which the tool is adapted to receive and hold the elongated element, for handling of this elongated element.
  • the gripping instrument is arranged so that a movement of the handle causes the gripping tool to move between its closed and open positions.
  • This movement of the handle is for example a movement of rotation, translation or any other combination of movements.
  • a very simple control of the opening / closing of the tool, for example arranged in clamp, can thus be obtained, facilitating the manipulation of the instrument by an operator.
  • the gripping tool can be arranged as a gripper and can comprise first and second bearing members mounted on the handle and intended to come on either side of the elongated element, on a section of it.
  • the gripping instrument is arranged so that a movement of the handle, for example a rotation of the handle around the longitudinal direction, causes the displacement of at least one of the support members from an open position of the clamp to a closing position of the clamp and / or vice versa.
  • this instrument is arranged to allow the transition from the closed position to the open position, and / or vice versa, by moving the handle.
  • This movement can be done by a technician having grasped a part of the handle remote from the tool in clamp, for example a gripping end of the handle. It is therefore possible to easily manipulate a bar in height, using this instrument, while remaining relatively far from the bar, and therefore safe, for example on the ground or on a lower platform.
  • the gripping instrument can be arranged so that a rotation of the handle causes the displacement of at least one of the support members.
  • the second support member may be able to be driven in displacement between the open position and the closed position by a rotation of the handle about its longitudinal axis. So, to grab or divest the bar, the person turns the handle on itself. Even if the handle is relatively long, it avoids the risk of shocks related to pivoting about an axis perpendicular to the longitudinal axis of the handle.
  • the displacement of the handle causing the passage from the open position to the closed position and / or vice versa is a rotational movement about an axis substantially parallel to the axis of the elongate member.
  • the instrument may comprise a handle ending in a locking cam, and a U-shaped support member, pivotally mounted on the cam.
  • the cam portion may for example be of the eccentric roller type.
  • the operator begins by placing the instrument so that the cam portion and the support member are on either side of the elongated element, on a section thereof. Then the operator rotates the pole about the axis of rotation of the cam which is then substantially parallel to the longitudinal axis of the elongated element to be grasped, for example, by 30 ° so as to drive the cam portion into position. rotation.
  • the support member is arranged so that during the rotation, the support member is however blocked by the elongate member.
  • the cam portion and the support member are pivoted relative to each other.
  • the instrument, and in particular the cam part, are arranged so that after this rotation of 30 ° the cam part comes to exert a pressure against the elongated element.
  • the elongated element being thus taken, the operator can now move it by means of this instrument.
  • the operator performs a reverse rotation movement, for example 30 °, about an axis substantially parallel to the longitudinal axis of the elongated element.
  • the first support member may be pivotally mounted on the handle and be provided with rotation locking means relative to the second support member.
  • the second support member may be mounted integral with the sleeve and the instrument can be arranged so that a rotation of the handle allows to move the second support member.
  • the instrument can thus have a relatively simple design.
  • the instrument can be arranged so that the displacement of the handle causes the displacement of the two support members, one towards the other for example.
  • the instrument may be arranged in a pole, comprising a handle extending between a proximal end of a grip and a distal working end.
  • the distal end is provided with a gripping tool arranged gripping gripper of a grab bar.
  • the clamp combines two antagonistic support members, which are mounted on the handle pivotally relative to each other along a pivot axis oriented parallel to a general axis of extension of the handle. Ideally, the pivot axis and the general axis of extension of the handle are coaxial.
  • the support members are operable in relative pivoting between an open position of the clamp and a closed position of the clamp.
  • a first support member is pivotally mounted on the handle overhanging a second support member integral with the handle. The first support member is provided with locking means in rotation relative to the second support member.
  • the support members may be arranged so as to, in the closed position, exert on the bar a force substantially in the longitudinal direction of the handle.
  • the user to enter a bar, the user must first place the instrument so that the bar comes to interpose between one of the support members and the grip end of the handle.
  • the invention is in no way limited by this embodiment.
  • the second support member may have a cam-shaped portion, so that a pivoting of this support member in a portion of a turn, by example a quarter turn, come to place this second body in support against the bar to grasp.
  • the instrument may comprise a thread secured to the first support member and cooperating with a thread of the second support member.
  • a person rotating the sleeve about its longitudinal axis can thus bring the second support member of the first support member, by screwing, until the two members are supported on either side of the closed off.
  • the support members when the second support member has a cam portion, in the open position of the clamp, the support members may be radially offset relative to each other with respect to the axis of pivot. In the closed position of the clamp, the support members may be in remote superposition in an orientation corresponding to the general axis of extension of the handle. The relative position in superposition of the support members gives them the ability to take antagonistic support against an element to be interposed between them, along the axis of general extension of the handle.
  • the locking means of the first support member may be arranged to bear against the bar when the handle is actuated in rotation. Maneuvering the clamp from one to the other of the open position and the closed position, can be induced from a pivotal retention of the first support member by the locking means that it comprises.
  • the implementation of the locking means is spontaneously induced from a bearing of the first support member on any element outside the handle, and more particularly on the bar to be taken by means of the instrument.
  • the access offered to the first support member by lateral retraction of the second support member allows an operator manipulating the handle to approach the first support member to a bar to manipulate, without the second support member obstructing this approach.
  • the first support member being engaged on the bar, the locking means pivotally immobilize the first support member.
  • Such locking means are in particular means for holding lateral supports remote from the first support member against the bar, in a direction transverse to the axis of general extension of the handle. A pivoting of the handle on itself exerted by an operator from its proximal end causes a corresponding pivoting of the second support member relative to the first support member.
  • the first support member advantageously arranged curved claw or similar engagement member, allows its operation for the operation of a tilting member of the scaffold.
  • Such a maneuver is in particular a pulling maneuver applied against an element to be manipulated from the seizure of this element by the first support member and a traction operated on the handle from its proximal end.
  • Such a member to be operated by the first support member may for example be formed of a fastening hook that includes the scaffolding and which is pivotally mounted on an element of this scaffold, such as an end of a bar.
  • the curved conformation of the claw is advantageously exploited not only to form the locking means, but also to form a traction member of any element of the scaffold.
  • the instrument allows an operator to remotely manipulate a bar that includes a scaffold, being in a secure station on the ground or on a secure platform of the scaffold.
  • the instrument makes it possible, in particular, to grasp and manipulate at a distance a rail that includes a railing, or even a guardrail, via a rail that it comprises.
  • Such remote manipulation makes it possible to secure a platform before it is used as a high circulation plan of the scaffolding, or conversely to dismantle a railing of a plateau while avoiding an operator to be stationary on this plateau.
  • the instrument also allows an operator to choose a safe and comfortable location for safe handling by drawn any element or organ that includes scaffolding, tilting attachment hook including.
  • the structure of the instrument is simple and inexpensive, and provides versatility of functions.
  • the first support member In addition to gripping a bar by the clamp in the closed position, the first support member is in an open environment in the open position of the clamp.
  • the first support member in the open position of the clamp is adapted to be used as a coupling member of the handle on an element of the scaffold to handle by pulling.
  • the first support member In the open position of the clamp, the first support member is adapted to form a traction member of an element of the scaffold to handle, exploiting a corresponding pull operated on the handle from its proximal end.
  • Such a pulling power is provided alternately and independently of an operation of the clamp that includes the instrument.
  • the first support member may be more particularly arranged in open cage at least to the second support member, which provides a receiving volume of a bar to be grasped by means of the instrument.
  • the cage may extend along at least two concurrent orientations.
  • a first orientation of extension of the cage is substantially orthogonal to the axis of general extension of the handle to form at least one support point.
  • a second orientation of extension of the cage is substantially parallel to the general axis of extension of the handle to extend the cage in extension of the handle and place said fulcrum away from the second support member.
  • This second orientation is also likely to be used to easily provide lateral supports radially distant from the axis of pivoting of the second support member.
  • Such lateral supports advantageously form the said locking means.
  • the first support member may advantageously be formed of a claw.
  • the claw is formed from at least one curved branch being shaped hook or similar curved member.
  • the claw defines the interior volume of the cage adapted to receive a bar by picking.
  • the claw comprises at least two bent branches distant to one side of the handle.
  • the branches may advantageously each be formed from a deformed rigid wire element, in particular metal.
  • the branches are more particularly placed at radial distance from each other with respect to the pivot axis of the first support member.
  • the branches are arranged on either side of the axis of general extension of the handle, being aligned in a direction transverse to this axis.
  • the claw In the open position of the clamp, the claw can form a picking member of the handle on any bearing surface on which traction is to be operated by means of the instrument.
  • a bearing surface is for example a tilting hooking member equipping the end of a bar as mentioned above.
  • a tilting member may have tabs or similar gripping members for gripping by the claw.
  • each of the branches delimit the internal receiving volume of the cage, being spaced from one another radially relative to the pivot axis of the first support member, and more particularly relative to to the axis of general extension of the handle. This separation distance of the branches between them provides remote lateral support points that take respectively returns and stems from one to the other branches.
  • the second support member may advantageously be arranged in a drum receiving pivotally the first support member.
  • the barrel can comprise a cleat which is radially extended towards the outside of the handle, and which provides an antagonistic support point to the support provided by the first support member.
  • the barrel may be adapted to be secured to the distal end of the handle by broaching and / or sealing, such as by gluing, overmolding or other similar sealing technique.
  • the second support member may advantageously comprise at its distal end (one or) limit stops relative to the pivoting race relative to the first support member.
  • said abutments can be easily formed by the ends of an axial lip that includes the barrel at its distal end.
  • the opposing stops may be advantageously formed by a base of the branch at least that includes the first support member.
  • a base is in particular a connecting member of the first support member at the end of the handle.
  • Such a base is for example formed by the base of the son from which are formed the branches making up the claw.
  • a scaffold assembly comprising a scaffolding device and an instrument as described above.
  • This set can be marketed in the disassembled state.
  • the scaffolding device may comprise one or more bars (s), for example smooth and sub-smooth, that can be grasped by this instrument.
  • vertical is meant the direction of the gravity vector.
  • horizontal plane is meant a plane perpendicular to this direction of the gravity vector.
  • a scaffolding comprises two pillars 1.2 braced for the rest of the scaffolding on the ground.
  • the pillars 1,2 are each formed from an assembly between uprights 3 and 4 ladder connecting the uprights 3 of the same pillar 1,2 two to two.
  • the pillars 1,2 are connected to each other by means of bracing bars 5, and by means of trays 6 or the like which rest at their ends on respective rungs 4 which the pillars 1 comprise, 2.
  • the pillars 1, 2 are provided with stabilizing legs 7 to reinforce the seating that the scaffolding takes on the floor.
  • the trays 6 form circulation planes for an operator, and are each provided with rails 9.
  • the rails 9 are fixed at their ends to the steps 4 of the pillars 1,2 by means of fasteners 19.
  • the high position of the rails 9 makes it difficult for them to be installed and / or conversely dismantled by an operator in a secure station with regard to a possible fall, the operator being on the ground or on a lower plateau level.
  • the circulation of an operator on a tray 6 not secured by smooth 9 is to be avoided.
  • an instrument of the type arranged in a pole has a handle 12 whose proximal end is used for gripping the pole and whose distal end is provided with a gripping tool.
  • the handle may have a length (along its longitudinal axis A1) of between 0.5 and 3 meters, advantageously between 1 and 2 meters, for example 1.5 meters.
  • the gripping tool is structured as a gripper 13 comprising two cooperating support members 14, 15 which, in the closed position of the gripper 13, provide opposing supports against an element to be grasped, and more particularly a bar 16 of the scaffolding.
  • the antagonism of the said support is to be considered in a direction corresponding to an axis of general extension A2 of the handle 12.
  • a first support member 14 is pivotally mounted on the handle 12 and a second support member 15 is integral with the handle 12, via a pin 18 for example.
  • the first support member 14 is pivotally mounted about a pivot axis A1 coaxial with the general extension axis A2 of the handle 12.
  • the clamp 13 is operable between a closed position illustrated on the figure 3 , and an open position illustrated on the figure 2 .
  • the support members 14, 15 are vis-à-vis one on the other in remote superposition in a setting orientation of the bar 16 corresponding to the axis of general extension A2 of the handle 12.
  • the support members 14,15 are radially offset relative to each other with respect to the general axis of extension A2 of the handle 12.
  • the support members 14, 15 are movable relative to each other in pivoting relation to the general extension axis A2 of the handle 12, to allow lateral retraction of the first support member 14 relative to to the second support member 15 in the open position of the clamp 13, as illustrated in FIGS. figures 1 and 3 .
  • the lateral retraction of one of the support members 14, 15 is to be considered in view of a radial displacement of the support members 14, 15 relative to each other with respect to the axis of A1 pivot of the first support member 14.
  • the lateral retraction of the support members 14, 15 relative to each other allows access to the first support member 14, without hindering the presence of the second support member 15 may make obstacle to this access.
  • Such access allows the supply to the first support member 14 of an element outside the handle, bar 16 of the scaffold in particular.
  • Such a feed is permitted substantially in a direction D parallel to the general axis of extension A2 of the handle 12, from its proximal end towards its distal end.
  • the first support member 14 is arranged in a receiving cage of the bar 16, being structured in claw 20 defining the interior volume of the cage.
  • the claw 20 comprises two branches 21, 22 which are arranged at a radial distance from one another on the same side of the handle 12.
  • the branches 21, 22 are aligned in an orientation transverse to the axis of general extension A2 of the handle 12, being distributed on either side of the pivot axis A1 of the first support member 14 corresponding to the general extension axis A2 of the handle 12 .
  • Each of the branches 21, 22 comprises a rod 23 which is engaged on the handle 12 at its base.
  • the rod 23 extends in an orientation parallel to the axis of general extension A2 of the handle 12.
  • the rod 23 is extended by a flap 24 which extends in an orientation orthogonal to the axis of general extension A2 of 12.
  • the flap 24 forms an antagonistic support point to the support provided by the second support member 15 in the closed position of the clamp 13.
  • the flap 24 is extended by a return 25 which extends along a parallel orientation to that of the rod 23.
  • the returns 25 and the rods 23 that each comprise the branches 21,22 cooperate with each other to form pivoting locking means of the first support member 14 placed in engagement on the bar 16.
  • Such locking means allow to block in pivoting the first support member 14 engaged on the bar 16, and allowing a relative pivoting movement of the second support member 15 rotated through the handle 12.
  • the second support member 15 is arranged in barrel 26, which is integral with the distal end of the handle 12 and which receives the first support member 14 pivotally.
  • the barrel 26 has a cleat 27 radially extended outwardly of the handle 12.
  • the cleat 27 has an inclined upper surface and constitutes a generally cam-shaped portion. When the shaft 26 is rotated about the axis A2, the stop 27 passes under the bar. Due to this inclined upper surface, the stop 27 comes to exert against the bar a support force of increasing importance as and pivoting, until all the portion 27 is introduced under the bar 16.
  • the cleat 27 provides an antagonistic point of support at the points of support provided by the flaps 24 that each of the branches 21, 22 of the claw 20 comprise.
  • An end face 28 of the shank 26 has an axial lip 31 which radial ends of the stops 29, 30 for limiting the pivoting stroke of the first support member 14 with respect to the second support member 15.
  • the priority application of the instrument represented on the Figures 2 and 3 relates to the gripping and handling of a bar 16.
  • the first support member 14 is placed in abutment against the bar 16 via the flaps 25.
  • the second support member 15 is retracted laterally relative to the first support member 14.
  • the support bearing of the first bearing member 14 against the bar 16, induces its blocking in pivoting through the returns 25 and rods 23 formed by the branches 21, 22.
  • the support members 14, 15 are placed in a distance superposition along the axis of general orientation A2 of extension of the sleeve 12, from a relative rotation of the first support member 14 and the second member of support 14 which is performed by rotation of the handle 12 operated from its proximal end gripping.
  • the bar 16 is trapped between the first support member 14 and the second support member 15, which exert antagonistic supports against the bar 16.
  • a floating game of the bar 16 inside the claw 20 is susceptible to be authorized, until a spontaneous locking of the bar 16 between the support members 14, 15 under the effect of its own weight. Such a floating game is allowed without escaping from the bar 16 out of the claw 20, which is retained by the returns 25. Such a floating game allows an adaptation of the clamp 13 to a gripping bars 16 of potentially different respective sections .
  • the subsidiary application of the instrument relates to a bearing on an element 19 of the scaffolding to exert against this element 19 a traction.
  • the element 19 of the scaffolding is for example a member for fixing a bar 16, as in the illustrated example.
  • Such a fastener, or latch is for example arranged as a pivotally hinged hook at one of its ends of a bar 16.
  • the first support member 14 constitutes a traction member on the element 19 of the scaffolding, against which the first support member 14 is adapted to take hold via the claw 20.
  • the attachment instrument can be used for gripping and handling a smooth type bar as described above.
  • This instrument has a handle and a grasping tool at the distal end of the handle.
  • the proximal end of the handle may be equipped with a means for attachment to a utensil or a means of support of utensil (s), for example a bucket suitable for containing utensils.
  • This fixing means may for example comprise a nail, a hook, or other.
  • utensil here means a tool in the common sense of the term, for example a screwdriver, a brush, a bucket adapted to contain a paint type fluid, etc.
  • the instrument can thus serve as a means of attaching utensil (s) to the scaffolding.
  • the gripping tool allows the attachment to a horizontal bar of the scaffold, the smooth type or step, and the utensil or tools at the other end of the handle can thus be easily accessible to people working on the scaffolding.
  • the handle can then have reduced dimensions, for example of the order of one meter or fifty centimeters.

Description

L'invention concerne un instrument de fixation à un élément allongé, notamment de type lisse, pour un dispositif d'échafaudage, en particulier pour le montage en sécurité d'un échafaudage.The invention relates to an attachment instrument to an elongated element, particularly of smooth type, for a scaffolding device, in particular for the secure mounting of a scaffold.

Par dispositif d'échafaudage, on entend aussi bien un échafaudage au sens traditionnel du terme qu'un marchepied, un escabeau, une passerelle, une plate-forme, un escalier de rayonnage, ou similaire.Scaffolding means scaffolding in the traditional sense of the term as a step, a stepladder, a walkway, a platform, a shelf ladder, or the like.

Les dispositifs d'échafaudages sont des structures composées d'éléments allongés agencés en barre ou éléments allongés analogues. Les échafaudages sont montés sur site par assemblage des barres entre elles, pour permettre à un opérateur d'accéder à une position élevée du bâtiment, en façade notamment. Les échafaudages sont organisés pour permettre leur assemblage et leur démontage sur site le plus aisément et le plus rapidement possible.The scaffolding devices are structures composed of elongated elements arranged in bar or similar elongated elements. The scaffoldings are mounted on site by assembling the bars together, to allow an operator to access a high position of the building, in particular facade. The scaffolding is organized to allow assembly and disassembly on site as easily and as quickly as possible.

Les barres composant l'échafaudage sont par exemple des montants, des échelons d'entrecroisement des montants entre eux, des barres de contreventement, des lisses et/ou sous-lisses, des barres de renfort et/ou de soutien, ou encore des barres de stabilisation de l'échafaudage au sol. Les barres sont issues de profilés de section indifféremment circulaire ou polygonale, carrée ou rectangulaire notamment. Les barres sont assemblées entre elles par des organes de fixation organisés pour être mis en prise conjointe sur deux barres à assembler. L'une au moins des extrémités d'une barre est couramment équipée d'un élément de fixation pour sa mise en prise sur une barre voisine de l'échafaudage. Cet élément peut notamment avoir une forme générale de crochet.The bars constituting the scaffolding are, for example, uprights, steps of intercrossing the uprights with each other, bracing bars, smooth and / or under-slats, reinforcement and / or support bars, or bars. Stabilization of the scaffolding on the ground. The bars come from sections of indifferently circular or polygonal section, square or rectangular in particular. The bars are assembled together by fasteners organized to be jointly engaged on two bars to assemble. At least one end of a bar is commonly equipped with a fastener for engagement to a bar next to the scaffold. This element may in particular have a general hook shape.

Le document FR 2 922 929 décrit un exemple de lisse comportant deux éléments de fixation à ses extrémités respectives. Chaque élément de fixation comporte une partie de crochet fixe et une partie de crochet mobile. L'un des crochets mobiles comporte un orifice dans lequel une tige solidarisée à une barre diagonale peut être introduite. Dit autrement, l'opérateur peut déverrouiller cette extrémité de lisse en introduisant la tige dans cet orifice, en relevant cette partie de crochet mobile et en entraînant la lisse de façon à la désinstaller du dispositif d'échafaudage. Néanmoins, la manipulation de la lisse au moyen de la barre de diagonale est relativement délicate, en particulier, l'opérateur doit manipuler la barre diagonale avec beaucoup de précaution de façon à éviter que la lisse ne s'échappe.The document FR 2 922 929 describes an example of a bar having two fixing elements at its respective ends. Each attachment member has a fixed hook portion and a movable hook portion. One of the movable hooks has an orifice in which a rod secured to a diagonal bar can be introduced. In other words, the operator can unlock this end of the bar by inserting the bar into this opening, raising this part of the movable hook and dragging the bar so as to remove it from the bar. scaffolding device. Nevertheless, the manipulation of the rail by means of the diagonal bar is relatively delicate, in particular, the operator must handle the diagonal bar with great care so as to prevent the rail from escaping.

Il existe également des perches présentant à leur extrémité une partie ouverte en forme de C pouvant supporter une lisse, sans fixation de la lisse à cette partie ouverte en forme de C de sorte que la lisse peut s'en échapper et chuter sur l'opérateur (cf. DE 102007 011 716 A1 ).There are also poles having at their end a C-shaped open part that can support a rail without attaching the rail to this open C-shaped part so that the rail can escape and fall on the operator. (cf. DE 102007 011 716 A1 ).

Un problème posé réside dans la manipulation sécurisée des différentes barres et/ou des différents ensembles (comme par exemple les ensembles de garde-corps qui comprennent plusieurs barres déjà assemblées en elles) de l'échafaudage devant être installés sur site. Il est souhaitable que le montage et le démontage de l'échafaudage s'effectue dans des conditions de sécurité optimisées pour un opérateur effectuant ces opérations, et notamment il est souhaitable d'éviter la chute des barres, par exemple des lisses, et/ou des différents ensembles lors de leur manipulation.A problem lies in the secure handling of different bars and / or different sets (such as sets of railings that include several bars already assembled in them) of the scaffold to be installed on site. It is desirable that the erection and dismantling of the scaffolding takes place under conditions of safety optimized for an operator performing these operations, and in particular it is desirable to avoid the fall of the bars, for example rails, and / or different sets when handling them.

Par exemple, il est à éviter qu'un opérateur évolue sur un échafaudage sur un plateau démuni de garde-corps.For example, it is necessary to avoid that an operator evolves on a scaffolding on a plateau without guardrails.

Il existe un besoin pour un montage et/ou un démontage de l'échafaudage conciliant sécurité et rapidité d'installation.There is a need for assembly and / or disassembly of the scaffold conciliating security and speed of installation.

Il est proposé un instrument de saisie d'un élément allongé d'un dispositif d'échafaudage, par exemple une barre d'échafaudage notamment de type lisse, cet instrument comprenant :

  • un manche s'étendant suivant une direction longitudinale,
  • un outil de prise mobile entre une position d'ouverture permettant l'introduction ou l'extraction dudit élément allongé et une position de fermeture dans laquelle l'outil est apte à recevoir et maintenir rigidement l'élément allongé.
There is provided an instrument for gripping an elongated element of a scaffolding device, for example a scaffold bar, particularly of smooth type, this instrument comprising:
  • a handle extending in a longitudinal direction,
  • a movable engagement tool between an open position allowing the introduction or extraction of said elongated member and a closed position in which the tool is adapted to receive and rigidly hold the elongate member.

Un tel instrument permet ainsi d'éviter une chute de l'élément allongé lors de sa manipulation. En particulier, l'outil de prise, par exemple agencé en pince, peut être conformé pour maintenir rigidement l'élément allongé dans sa position de fermeture. Autrement dit, dans sa position de fermeture, l'outil de prise ne permet pas de déplacement de l'élément allongé par rapport à l'instrument.Such an instrument thus makes it possible to avoid a fall of the elongated element during its manipulation. In particular, the gripping tool, for example arranged in clamp, may be shaped to rigidly hold the elongated element in its closed position. In other words, in its closed position, the gripping tool does not allow movement of the elongated element relative to the instrument.

L'outil de prise peut être mobile entre la position d'ouverture pour l'introduction ou l'extraction dudit élément allongé et la position de fermeture, dans laquelle l'outil est apte à recevoir et maintenir l'élément allongé, pour la manipulation de cet élément allongé.The gripping tool can be movable between the open position for the introduction or extraction of said elongated member and the closed position, in which the tool is adapted to receive and hold the elongated element, for handling of this elongated element.

Avantageusement et de manière non limitative, l'instrument de saisie est agencé de sorte qu'un déplacement du manche entraîne le déplacement de l'outil de prise entre ses positions de fermeture et d'ouverture. Ce déplacement du manche est par exemple un mouvement de rotation, de translation ou toute autre combinaison de mouvements. Une commande très simple de l'ouverture/fermeture de l'outil, par exemple agencé en pince, peut ainsi être obtenue, facilitant la manipulation de l'instrument par un opérateur.Advantageously and in a nonlimiting manner, the gripping instrument is arranged so that a movement of the handle causes the gripping tool to move between its closed and open positions. This movement of the handle is for example a movement of rotation, translation or any other combination of movements. A very simple control of the opening / closing of the tool, for example arranged in clamp, can thus be obtained, facilitating the manipulation of the instrument by an operator.

Avantageusement et de manière non limitative, l'outil de prise peut être agencé en pince et peut comprendre un premier et un deuxième organes d'appui montés sur le manche et destinés à venir de part et d'autre de l'élément allongé, sur une section de celui-ci.Advantageously and in a nonlimiting manner, the gripping tool can be arranged as a gripper and can comprise first and second bearing members mounted on the handle and intended to come on either side of the elongated element, on a section of it.

L'instrument de saisie est agencé de sorte qu'un déplacement du manche, par exemple une rotation du manche autour de la direction longitudinale, entraîne le déplacement de l'un au moins des organes d'appui d'une position d'ouverture de la pince vers une position de fermeture de la pince et/ou inversement.The gripping instrument is arranged so that a movement of the handle, for example a rotation of the handle around the longitudinal direction, causes the displacement of at least one of the support members from an open position of the clamp to a closing position of the clamp and / or vice versa.

Ainsi, cet instrument est agencé de façon à permettre le passage de la position de fermeture à la position d'ouverture, et/ou inversement, par déplacement du manche. Ce déplacement peut être le fait d'un technicien ayant saisi une partie du manche éloignée de l'outil en pince, par exemple une extrémité de préhension du manche. Il est donc possible de manipuler facilement une barre en hauteur, au moyen de cet instrument, tout en restant relativement éloigné de la barre, et donc en sécurité, par exemple au sol ou sur une plate-forme plus basse.Thus, this instrument is arranged to allow the transition from the closed position to the open position, and / or vice versa, by moving the handle. This movement can be done by a technician having grasped a part of the handle remote from the tool in clamp, for example a gripping end of the handle. It is therefore possible to easily manipulate a bar in height, using this instrument, while remaining relatively far from the bar, and therefore safe, for example on the ground or on a lower platform.

Avantageusement et de façon non limitative, l'instrument de saisie peut être agencé de sorte qu'une rotation du manche entraîne le déplacement de l'un au moins des organes d'appui.Advantageously and in a nonlimiting manner, the gripping instrument can be arranged so that a rotation of the handle causes the displacement of at least one of the support members.

Avantageusement et de façon non limitative, le deuxième organe d'appui peut être apte à être entrainé en déplacement entre la position d'ouverture et la position de fermeture par une rotation du manche autour de son axe longitudinal. Ainsi, pour saisir ou dessaisir la barre, la personne fait tourner le manche sur lui-même. Même si le manche est relativement long, on évite les risques de chocs liés à un pivotement autour d'un axe perpendiculaire à l'axe longitudinal du manche.Advantageously and without limitation, the second support member may be able to be driven in displacement between the open position and the closed position by a rotation of the handle about its longitudinal axis. So, to grab or divest the bar, the person turns the handle on itself. Even if the handle is relatively long, it avoids the risk of shocks related to pivoting about an axis perpendicular to the longitudinal axis of the handle.

Alternativement, on pourrait prévoir que ce soit un mouvement de translation du manche, par exemple le long de son axe longitudinal, qui permette, une fois les organes placés de part et d'autre de la barre, de déplacer l'un au moins de ces organes jusqu'à ce que les deux organes soient en position de fermeture. On pourrait par exemple prévoir un mécanisme de clipsage.Alternatively, one could predict that it is a translational movement of the handle, for example along its longitudinal axis, which allows, once the organs placed on either side of the bar, to move at least one of these bodies until the two members are in the closed position. One could for example provide a clipping mechanism.

Alternativement, on pourrait aussi prévoir que le déplacement du manche entrainant le passage de la position d'ouverture à la position de fermeture et/ ou inversement soit un mouvement de rotation autour d'un axe sensiblement parallèle à l'axe de l'élément allongé.Alternatively, it could also be provided that the displacement of the handle causing the passage from the open position to the closed position and / or vice versa is a rotational movement about an axis substantially parallel to the axis of the elongate member. .

Par exemple, l'instrument peut comporter un manche se terminant en une came de verrouillage, et un organe d'appui à forme générale de U, monté de façon pivotante sur la came. La partie came peut par exemple être du type galet excentré. Pour saisir l'élément allongé, l'opérateur commence par placer l'instrument de sorte que la partie came et l'organe d'appui soient de part et d'autre de l'élément allongé, sur une section de celui-ci. Puis l'opérateur fait pivoter la perche autour de l'axe de rotation de la came qui est alors sensiblement parallèle à l'axe longitudinal de l'élément allongé à saisir, de 30° par exemple, de façon à entraîner la partie came en rotation. L'organe d'appui est agencé de sorte qu'au cours de la rotation, l'organe d'appui soit en revanche bloqué par l'élément allongé. La partie came et l'organe d'appui pivotent donc l'un par rapport à l'autre. L'instrument, et en particulier la partie came, sont agencés de sorte qu'après cette rotation de 30° la partie came vienne exercer une pression contre l'élément allongé. L'élément allongé étant ainsi pris, l'opérateur peut à présent le déplacer au moyen de cet instrument. Pour relâcher l'élément allongé, l'opérateur effectue un mouvement inverse de rotation, de par exemple 30°, autour d'un axe sensiblement parallèle à l'axe longitudinal de l'élément allongé.For example, the instrument may comprise a handle ending in a locking cam, and a U-shaped support member, pivotally mounted on the cam. The cam portion may for example be of the eccentric roller type. To grasp the elongated element, the operator begins by placing the instrument so that the cam portion and the support member are on either side of the elongated element, on a section thereof. Then the operator rotates the pole about the axis of rotation of the cam which is then substantially parallel to the longitudinal axis of the elongated element to be grasped, for example, by 30 ° so as to drive the cam portion into position. rotation. The support member is arranged so that during the rotation, the support member is however blocked by the elongate member. The cam portion and the support member are pivoted relative to each other. The instrument, and in particular the cam part, are arranged so that after this rotation of 30 ° the cam part comes to exert a pressure against the elongated element. The elongated element being thus taken, the operator can now move it by means of this instrument. To release the elongated element, the operator performs a reverse rotation movement, for example 30 °, about an axis substantially parallel to the longitudinal axis of the elongated element.

Avantageusement et de façon non limitative, le premier organe d'appui peut être monté pivotant sur le manche et être muni de moyens de blocage en rotation par rapport au deuxième organe d'appui. Le deuxième organe d'appui peut être monté solidaire du manche et l'instrument peut être agencé de sorte qu'une rotation du manche permette de déplacer le deuxième organe d'appui. L'instrument peut ainsi avoir une conception relativement simple.Advantageously and without limitation, the first support member may be pivotally mounted on the handle and be provided with rotation locking means relative to the second support member. The second support member may be mounted integral with the sleeve and the instrument can be arranged so that a rotation of the handle allows to move the second support member. The instrument can thus have a relatively simple design.

Alternativement, l'instrument peut être agencé de sorte que le déplacement du manche entraine le déplacement des deux organes d'appui, l'un vers l'autre par exemple.Alternatively, the instrument can be arranged so that the displacement of the handle causes the displacement of the two support members, one towards the other for example.

Par exemple, l'instrument peut être agencé en perche, comprenant un manche s'étendant entre une extrémité proximale de préhension et une extrémité distale de travail. L'extrémité distale est munie d'un outil de saisie agencé en pince de préhension d'une barre à saisir. La pince associe deux organes d'appuis antagonistes, qui sont montés sur le manche en pivotement relatif l'un par rapport à l'autre suivant un axe de pivot orienté parallèlement à un axe d'extension générale du manche. Idéalement, l'axe de pivot et l'axe d'extension générale du manche sont coaxiaux. Les organes d'appui sont manoeuvrables en pivotement relatif entre une position d'ouverture de la pince et une position de fermeture de la pince. Un premier organe d'appui est monté pivotant sur le manche en surplomb d'un deuxième organe d'appui solidaire du manche. Le premier organe d'appui est muni de moyens de blocage en rotation par rapport au deuxième organe d'appui.For example, the instrument may be arranged in a pole, comprising a handle extending between a proximal end of a grip and a distal working end. The distal end is provided with a gripping tool arranged gripping gripper of a grab bar. The clamp combines two antagonistic support members, which are mounted on the handle pivotally relative to each other along a pivot axis oriented parallel to a general axis of extension of the handle. Ideally, the pivot axis and the general axis of extension of the handle are coaxial. The support members are operable in relative pivoting between an open position of the clamp and a closed position of the clamp. A first support member is pivotally mounted on the handle overhanging a second support member integral with the handle. The first support member is provided with locking means in rotation relative to the second support member.

Avantageusement et de façon non limitative, les organes d'appui peuvent être disposés de façon à, en position de fermeture, exercer sur la barre une force sensiblement selon la direction longitudinale du manche. Dit autrement, pour saisir une barre, l'utilisateur doit d'abord placer l'instrument de sorte que la barre vienne s'interposer entre l'un des organes d'appui et l'extrémité de préhension du manche.Advantageously and in a nonlimiting manner, the support members may be arranged so as to, in the closed position, exert on the bar a force substantially in the longitudinal direction of the handle. In other words, to enter a bar, the user must first place the instrument so that the bar comes to interpose between one of the support members and the grip end of the handle.

L'invention n'est en rien limitée par cette forme de réalisation. On pourrait par exemple prévoir que les organes d'appui soient disposés de façon à exercer une force sensiblement perpendiculaire à la direction longitudinale du manche. Un utilisateur désireux de saisir une barre en hauteur viendrait donc par en dessous placer les organes d'appui à gauche et à droite de la barre, puis actionnerait le manche de façon à rapprocher ces organes d'appui.The invention is in no way limited by this embodiment. One could for example provide that the support members are arranged to exert a force substantially perpendicular to the longitudinal direction of the handle. A user wishing to enter a bar in height would therefore from below place the support members to the left and right of the bar, then actuate the handle to bring closer these support members.

Avantageusement et de façon non limitative, le deuxième organe d'appui peut avoir une portion en forme de came, de sorte qu'un pivotement de cet organe d'appui selon une portion de tour, par exemple un quart de tour, vienne placer ce deuxième organe en appui contre la barre à saisir.Advantageously and non-limitatively, the second support member may have a cam-shaped portion, so that a pivoting of this support member in a portion of a turn, by example a quarter turn, come to place this second body in support against the bar to grasp.

L'invention n'est en rien limitée par une forme particulière. Par exemple, l'instrument peut comporter un filetage solidarisé au premier organe d'appui et coopérant avec un filetage du deuxième organe d'appui. Une personne tournant la manche en rotation autour de son axe longitudinal peut ainsi rapprocher le deuxième organe d'appui du premier organe d'appui, par vissage, jusqu'à ce que les deux organes soient en appui de part et d'autre de la barre.The invention is in no way limited by a particular form. For example, the instrument may comprise a thread secured to the first support member and cooperating with a thread of the second support member. A person rotating the sleeve about its longitudinal axis can thus bring the second support member of the first support member, by screwing, until the two members are supported on either side of the closed off.

Par exemple, lorsque le deuxième organe d'appui a une partie de came, en position d'ouverture de la pince, les organes d'appui peuvent être radialement décalés l'un par rapport à l'autre au regard de l'axe de pivot. En position de fermeture de la pince, les organes d'appui peuvent être en superposition distante suivant une orientation correspondante à l'axe d'extension générale du manche. La position relative en superposition des organes d'appui leur confère la faculté de prendre des appuis antagonistes contre un élément à saisir interposé entre eux, suivant l'axe d'extension générale du manche.For example, when the second support member has a cam portion, in the open position of the clamp, the support members may be radially offset relative to each other with respect to the axis of pivot. In the closed position of the clamp, the support members may be in remote superposition in an orientation corresponding to the general axis of extension of the handle. The relative position in superposition of the support members gives them the ability to take antagonistic support against an element to be interposed between them, along the axis of general extension of the handle.

Avantageusement, les moyens de blocage du premier organe d'appui peuvent être agencés pour venir en appui contre la barre lorsque le manche est actionné en rotation. La manoeuvre de la pince de l'une à l'autre de la position d'ouverture et de la position de fermeture, peut être induite à partir d'une retenue en pivotement du premier organe d'appui par les moyens de blocage qu'il comporte. La mise en oeuvre des moyens de blocage est spontanément induite à partir d'une prise d'appui du premier organe d'appui sur un quelconque élément extérieur au manche, et plus particulièrement sur la barre à prendre au moyen de l'instrument.Advantageously, the locking means of the first support member may be arranged to bear against the bar when the handle is actuated in rotation. Maneuvering the clamp from one to the other of the open position and the closed position, can be induced from a pivotal retention of the first support member by the locking means that it comprises. The implementation of the locking means is spontaneously induced from a bearing of the first support member on any element outside the handle, and more particularly on the bar to be taken by means of the instrument.

Par exemple, en position d'ouverture de la pince, l'accès offert vers le premier organe d'appui par escamotage latéral du deuxième organe d'appui permet à un opérateur manipulant le manche d'approcher le premier organe d'appui vers une barre à manipuler, sans que le deuxième organe d'appui ne fasse obstacle à cette approche. Le premier organe d'appui étant en prise sur la barre, les moyens de blocage immobilisent en pivotement le premier organe d'appui. De tels moyens de blocage sont notamment des moyens de prise d'appuis latéraux distants du premier organe d'appui contre la barre, suivant une direction transversale à l'axe d'extension générale du manche. Un pivotement du manche sur lui-même exercé par un opérateur à partir de son extrémité proximale provoque un pivotement correspondant du deuxième organe d'appui par rapport au premier organe d'appui.For example, in the open position of the clamp, the access offered to the first support member by lateral retraction of the second support member allows an operator manipulating the handle to approach the first support member to a bar to manipulate, without the second support member obstructing this approach. The first support member being engaged on the bar, the locking means pivotally immobilize the first support member. Such locking means are in particular means for holding lateral supports remote from the first support member against the bar, in a direction transverse to the axis of general extension of the handle. A pivoting of the handle on itself exerted by an operator from its proximal end causes a corresponding pivoting of the second support member relative to the first support member.

La faculté offerte de sélectivement libérer le dit accès en position d'ouverture de la pince, ou inversement fermer le dit accès en position de fermeture de la pince, permet d'exploiter le premier organe d'appui pour d'autres fonctions de prise sans que le deuxième organe d'appui ne constitue une gêne. Par exemple, le premier organe d'appui, avantageusement agencé en griffe recourbée ou organe de prise analogue, permet son exploitation pour la manoeuvre d'un organe basculant de l'échafaudage. Une telle manoeuvre est notamment une manoeuvre en tirée appliquée contre un élément à manipuler à partir de la saisie de cet élément par le premier organe d'appui et d'une traction opérée sur le manche à partir de son extrémité proximale.The faculty offered to selectively release said access in the open position of the clamp, or conversely close said access in the closed position of the clamp, makes it possible to operate the first support member for other gripping functions without that the second support member does not constitute an inconvenience. For example, the first support member, advantageously arranged curved claw or similar engagement member, allows its operation for the operation of a tilting member of the scaffold. Such a maneuver is in particular a pulling maneuver applied against an element to be manipulated from the seizure of this element by the first support member and a traction operated on the handle from its proximal end.

Un tel organe à manoeuvrer par le premier organe d'appui peut être par exemple formé d'un crochet de fixation que comporte l'échafaudage et qui est monté basculant sur un élément de cet échafaudage, tel qu'un bout d'une barre.Such a member to be operated by the first support member may for example be formed of a fastening hook that includes the scaffolding and which is pivotally mounted on an element of this scaffold, such as an end of a bar.

La conformation recourbée de la griffe est avantageusement mise à profit non seulement pour former les moyens de blocage, mais aussi pour former un organe de traction d'un quelconque élément de l'échafaudage.The curved conformation of the claw is advantageously exploited not only to form the locking means, but also to form a traction member of any element of the scaffold.

L'instrument permet à un opérateur de manipuler à distance une barre que comprend un échafaudage, en étant en station sécurisée au sol ou sur un plateau sécurisé de l'échafaudage. L'instrument permet notamment de saisir et de manipuler à distance une lisse que comprend un garde-corps, voire un garde-corps par l'intermédiaire d'une lisse qu'il comporte. Une telle manipulation distante permet de sécuriser un plateau préalablement à son exploitation comme plan de circulation élevé de l'échafaudage, ou inversement de démonter un garde-corps d'un plateau en évitant à un opérateur d'être en station sur ce plateau.The instrument allows an operator to remotely manipulate a bar that includes a scaffold, being in a secure station on the ground or on a secure platform of the scaffold. The instrument makes it possible, in particular, to grasp and manipulate at a distance a rail that includes a railing, or even a guardrail, via a rail that it comprises. Such remote manipulation makes it possible to secure a platform before it is used as a high circulation plan of the scaffolding, or conversely to dismantle a railing of a plateau while avoiding an operator to be stationary on this plateau.

L'instrument permet aussi à un opérateur de choisir un emplacement sûr et confortable pour manipuler en toute sécurité par tirée un quelconque élément ou organe que comprend l'échafaudage, crochet basculant de fixation notamment.The instrument also allows an operator to choose a safe and comfortable location for safe handling by drawn any element or organ that includes scaffolding, tilting attachment hook including.

La structure de l'instrument est simple et peu coûteuse, et procure une polyvalence de fonctions. Outre la préhension d'une barre par la pince en position de fermeture, le premier organe d'appui est en environnement dégagé en position d'ouverture de la pince. Le premier organe d'appui en position d'ouverture de la pince est apte à être exploité comme organe d'accrochage du manche sur un élément de l'échafaudage à manipuler par tirée. En position d'ouverture de la pince, le premier organe d'appui est apte à former un organe de traction d'un élément de l'échafaudage à manipuler, en exploitant une traction correspondante opérée sur le manche à partir de son extrémité proximale. Une telle faculté de traction est procurée alternativement et indépendamment d'une exploitation de la pince que comporte l'instrument.The structure of the instrument is simple and inexpensive, and provides versatility of functions. In addition to gripping a bar by the clamp in the closed position, the first support member is in an open environment in the open position of the clamp. The first support member in the open position of the clamp is adapted to be used as a coupling member of the handle on an element of the scaffold to handle by pulling. In the open position of the clamp, the first support member is adapted to form a traction member of an element of the scaffold to handle, exploiting a corresponding pull operated on the handle from its proximal end. Such a pulling power is provided alternately and independently of an operation of the clamp that includes the instrument.

Le premier organe d'appui peut être plus particulièrement agencé en cage ouverte au moins vers le deuxième organe d'appui, qui ménage un volume de réception d'une barre à saisir au moyen de l'instrument. La cage peut s'étendre suivant au moins deux orientations concourantes. Une première orientation d'extension de la cage est sensiblement orthogonale à l'axe d'extension générale du manche pour former au moins un point appui. Une deuxième orientation d'extension de la cage est sensiblement parallèle à l'axe d'extension générale du manche pour étendre la cage en prolongement du manche et placer le dit point d'appui à distance du deuxième organe d'appui. Cette deuxième orientation est en outre susceptible d'être mise à profit pour ménager aisément des appuis latéraux radialement distants au regard de l'axe de pivotement du deuxième organe d'appui. De tels appuis latéraux forment avantageusement les dits moyens de blocage.The first support member may be more particularly arranged in open cage at least to the second support member, which provides a receiving volume of a bar to be grasped by means of the instrument. The cage may extend along at least two concurrent orientations. A first orientation of extension of the cage is substantially orthogonal to the axis of general extension of the handle to form at least one support point. A second orientation of extension of the cage is substantially parallel to the general axis of extension of the handle to extend the cage in extension of the handle and place said fulcrum away from the second support member. This second orientation is also likely to be used to easily provide lateral supports radially distant from the axis of pivoting of the second support member. Such lateral supports advantageously form the said locking means.

Le premier organe d'appui peut être avantageusement formé d'une griffe. La griffe est formée à partir d'au moins une branche recourbée en étant conformée en crochet ou organe courbe analogue. La griffe délimite le volume intérieur de la cage apte à recevoir une barre par crochetage.The first support member may advantageously be formed of a claw. The claw is formed from at least one curved branch being shaped hook or similar curved member. The claw defines the interior volume of the cage adapted to receive a bar by picking.

Selon une forme préférée de réalisation, la griffe comporte au moins deux branches recourbées distantes ménagées à un même côté du manche. Les branches peuvent être avantageusement chacune formées à partir d'un élément filaire rigide déformé, en métal notamment. Les branches sont plus particulièrement placées à distance radiale l'une de l'autre au regard de l'axe de pivot du premier organe d'appui. Les branches sont disposées de part et d'autre de l'axe d'extension générale du manche, en étant alignées suivant une direction transversale à cet axe.According to a preferred embodiment, the claw comprises at least two bent branches distant to one side of the handle. The branches may advantageously each be formed from a deformed rigid wire element, in particular metal. The branches are more particularly placed at radial distance from each other with respect to the pivot axis of the first support member. The branches are arranged on either side of the axis of general extension of the handle, being aligned in a direction transverse to this axis.

En position d'ouverture de la pince, la griffe peut former un organe de crochetage du manche sur une quelconque surface d'appui sur laquelle une traction est à opérer au moyen de l'instrument. Une telle surface d'appui est par exemple un organe basculant de crochetage équipant l'extrémité d'une barre tel que précédemment mentionné. Un tel organe basculant est susceptible de comporter des languettes ou organes de saisie analogues permettant sa préhension par la griffe.In the open position of the clamp, the claw can form a picking member of the handle on any bearing surface on which traction is to be operated by means of the instrument. Such a bearing surface is for example a tilting hooking member equipping the end of a bar as mentioned above. Such a tilting member may have tabs or similar gripping members for gripping by the claw.

Plus spécifiquement, les branches que comprend la griffe sont chacune conformées en crochet recourbé. Chacune des branches peut comporter :

  • une tige qui est en prise sur le manche en s'étendant parallèlement à l'axe d'extension générale du manche.
  • un rabat qui prolonge ladite tige en s'étendant orthogonalement à l'axe d'extension générale du manche du manche. Le rabat forme un point d'appui antagoniste à l'appui procuré par le deuxième organe d'appui.
  • un retour qui prolonge le dit rabat en s'étendant parallèlement à la tige. Le retour est coopérant avec au moins une tige que comprend l'une quelconque au moins des branches, le retour et la tige au moins coopérant formant les moyens de blocage.
More specifically, the branches that comprise the claw are each shaped as a bent hook. Each branch can include:
  • a rod which is engaged on the handle extending parallel to the general axis of extension of the handle.
  • a flap which extends said rod extending orthogonally to the general axis of extension of the handle of the handle. The flap forms an antagonistic support point to the support provided by the second support member.
  • a return that extends the said flap extending parallel to the rod. The return is cooperating with at least one rod that comprises at least one of the branches, the return and the at least cooperating rod forming the locking means.

Le retour et la tige de chacune des branches délimitent le volume intérieur de réception de la cage, en étant distants l'un de l'autre radialement par rapport à l'axe de pivot du premier organe d'appui, et plus particulièrement par rapport à l'axe d'extension générale du manche. Cette distance de séparation des branches entre elles procure des points d'appuis latéraux distants que prennent respectivement les retours et les tiges de l'une à l'autre des branches.The return and the stem of each of the branches delimit the internal receiving volume of the cage, being spaced from one another radially relative to the pivot axis of the first support member, and more particularly relative to to the axis of general extension of the handle. This separation distance of the branches between them provides remote lateral support points that take respectively returns and stems from one to the other branches.

Le deuxième organe d'appui peut être avantageusement agencé en fût recevant en pivotement le premier organe d'appui. Le fût peut comporter un taquet qui est radialement étendu vers l'extérieur du manche, et qui ménage un point d'appui antagoniste à l'appui procuré par le premier organe d'appui.The second support member may advantageously be arranged in a drum receiving pivotally the first support member. The barrel can comprise a cleat which is radially extended towards the outside of the handle, and which provides an antagonistic support point to the support provided by the first support member.

Le fût peut être apte à être solidarisé à l'extrémité distale du manche par brochage et/ou par scellement, tel que par collage, par surmoulage ou autre technique de scellement analogue.The barrel may be adapted to be secured to the distal end of the handle by broaching and / or sealing, such as by gluing, overmolding or other similar sealing technique.

Le deuxième organe d'appui peut avantageusement comporter à son extrémité distale (une ou) des butées de limitation de course en pivotement relatif par rapport au premier organe d'appui.The second support member may advantageously comprise at its distal end (one or) limit stops relative to the pivoting race relative to the first support member.

Par exemple, les dites butées peuvent être aisément ménagées par les extrémités d'une lèvre axiale que comporte le fût à son extrémité distale.For example, said abutments can be easily formed by the ends of an axial lip that includes the barrel at its distal end.

Par exemple, les butées opposées peuvent être avantageusement formées par une base de la branche au moins que comporte le premier organe d'appui. Une telle base est notamment un organe de jonction du premier organe d'appui à l'extrémité du manche. Une telle base est par exemple formée par la base des fils à partir desquels sont formées les branches composant la griffe.For example, the opposing stops may be advantageously formed by a base of the branch at least that includes the first support member. Such a base is in particular a connecting member of the first support member at the end of the handle. Such a base is for example formed by the base of the son from which are formed the branches making up the claw.

Il est en outre proposé un ensemble d'échafaudage comprenant un dispositif d'échafaudage et un instrument tel que décrit ci-dessus. Cet ensemble peut être commercialisé à l'état démonté. Le dispositif d'échafaudage peut comprendre une ou des barre(s), par exemple des lisses et des sous-lisses, aptes à être saisie par cet instrument.There is further provided a scaffold assembly comprising a scaffolding device and an instrument as described above. This set can be marketed in the disassembled state. The scaffolding device may comprise one or more bars (s), for example smooth and sub-smooth, that can be grasped by this instrument.

Par « vertical », on entend la direction du vecteur de gravité. Par « plan horizontal », on entend un plan perpendiculaire à cette direction du vecteur de gravité.By "vertical" is meant the direction of the gravity vector. By "horizontal plane" is meant a plane perpendicular to this direction of the gravity vector.

L'invention est maintenant décrite en référence aux dessins annexés, non limitatifs, dans lesquels :

  • La figure 1 montre partiellement un échafaudage comprenant des barres susceptibles d'être manipulées au moyen d'un instrument selon un mode de réalisation de la présente invention,
  • Les figures 2 et 3 montrent partiellement un exemple d'instrument selon un mode de réalisation de la présente invention, respectivement en position d'ouverture et en position de fermeture d'une pince que comporte l'instrument,
  • La figure 4 est une illustration de l'instrument représenté sur les figures 2 et 3, en position de prise d'un organe de crochetage équipant une barre d'échafaudage.
The invention is now described with reference to the appended non-limiting drawings, in which:
  • The figure 1 partially shows a scaffold comprising bars that can be manipulated by means of an instrument according to an embodiment of the present invention,
  • The Figures 2 and 3 show partially an example of an instrument according to an embodiment of the present invention, respectively in the open position and in the closed position of a clamp that includes the instrument,
  • The figure 4 is an illustration of the instrument shown on the Figures 2 and 3 , in the gripping position of a hooking member equipping a scaffold bar.

Des références identiques peuvent être utilisées pour désigner des éléments identiques ou similaires, dans leur forme ou leur fonction.Identical references may be used to designate identical or similar elements in their form or function.

En référence à la figure 1, un échafaudage comprend deux piliers 1,2 contreventés pour le repos de l'échafaudage au sol. Les piliers 1,2 sont chacun formés à partir d'un assemblage entre des montants 3 et des échelons 4 reliant les montants 3 d'un même pilier 1,2 deux à deux. Les piliers 1,2 sont reliés l'un à l'autre par l'intermédiaire de barres de contreventement 5, et par l'intermédiaire de plateaux 6 ou analogues qui reposent par leurs extrémités sur des échelons 4 respectifs que comportent les piliers 1,2. Les piliers 1,2 sont munis de jambes de stabilisation 7, pour conforter l'assise que prend l'échafaudage au sol.With reference to the figure 1 , a scaffolding comprises two pillars 1.2 braced for the rest of the scaffolding on the ground. The pillars 1,2 are each formed from an assembly between uprights 3 and 4 ladder connecting the uprights 3 of the same pillar 1,2 two to two. The pillars 1,2 are connected to each other by means of bracing bars 5, and by means of trays 6 or the like which rest at their ends on respective rungs 4 which the pillars 1 comprise, 2. The pillars 1, 2 are provided with stabilizing legs 7 to reinforce the seating that the scaffolding takes on the floor.

Les plateaux 6 forment des plans de circulation pour un opérateur, et sont chacun munis de lisses 9. Les lisses 9 sont fixées à leurs extrémités aux échelons 4 des piliers 1,2 par l'intermédiaire d'organes de fixation 19.The trays 6 form circulation planes for an operator, and are each provided with rails 9. The rails 9 are fixed at their ends to the steps 4 of the pillars 1,2 by means of fasteners 19.

La position élevée des lisses 9 rend délicate leur installation et/ou inversement leur démontage par un opérateur en station sécurisée vis-à-vis d'une chute éventuelle, l'opérateur étant au sol ou sur un niveau de plateau inférieur. La circulation d'un opérateur sur un plateau 6 non sécurisé par des lisses 9 est à éviter.The high position of the rails 9 makes it difficult for them to be installed and / or conversely dismantled by an operator in a secure station with regard to a possible fall, the operator being on the ground or on a lower plateau level. The circulation of an operator on a tray 6 not secured by smooth 9 is to be avoided.

En référence aux figures 2 et 3, un instrument du type agencé en perche comporte un manche 12 dont l'extrémité proximale est exploitée pour la préhension de la perche et dont l'extrémité distale est munie d'un outil de saisie.With reference to Figures 2 and 3 , an instrument of the type arranged in a pole has a handle 12 whose proximal end is used for gripping the pole and whose distal end is provided with a gripping tool.

Le manche peut avoir une longueur (suivant son axe longitudinal A1) comprise entre 0,5 et 3 mètres, avantageusement entre 1 et 2 mètres, par exemple 1,5 mètres.The handle may have a length (along its longitudinal axis A1) of between 0.5 and 3 meters, advantageously between 1 and 2 meters, for example 1.5 meters.

L'outil de saisie est structuré en pince 13 comportant deux organes d'appui 14,15 coopérants, qui ménagent en position de fermeture de la pince 13 des prises d'appuis antagonistes contre un élément à saisir, et plus particulièrement une barre 16 de l'échafaudage. L'antagonisme des dites prises d'appui est à considérer suivant une direction correspondant à un axe d'extension générale A2 du manche 12.The gripping tool is structured as a gripper 13 comprising two cooperating support members 14, 15 which, in the closed position of the gripper 13, provide opposing supports against an element to be grasped, and more particularly a bar 16 of the scaffolding. The antagonism of the said support is to be considered in a direction corresponding to an axis of general extension A2 of the handle 12.

Un premier organe d'appui 14 est monté pivotant sur le manche 12 et un deuxième organe d'appui 15 est solidaire du manche 12, par l'intermédiaire d'une broche 18 par exemple. Le premier organe d'appui 14 est monté pivotant autour d'un axe de pivot A1 coaxial à l'axe d'extension générale A2 du manche 12.A first support member 14 is pivotally mounted on the handle 12 and a second support member 15 is integral with the handle 12, via a pin 18 for example. The first support member 14 is pivotally mounted about a pivot axis A1 coaxial with the general extension axis A2 of the handle 12.

La pince 13 est manoeuvrable entre une position de fermeture illustrée sur la figure 3, et une position d'ouverture illustrée sur la figure 2. En position de fermeture de la pince 13, les organes d'appui 14,15 sont en vis-à-vis l'un sur l'autre en superposition distante suivant une orientation de prise de la barre 16 correspondant à l'axe d'extension générale A2 du manche 12. En position d'ouverture, les organes d'appui 14,15 sont radialement décalés l'un par rapport à l'autre par rapport à l'axe d'extension générale A2 du manche 12.The clamp 13 is operable between a closed position illustrated on the figure 3 , and an open position illustrated on the figure 2 . In the closed position of the clamp 13, the support members 14, 15 are vis-à-vis one on the other in remote superposition in a setting orientation of the bar 16 corresponding to the axis of general extension A2 of the handle 12. In the open position, the support members 14,15 are radially offset relative to each other with respect to the general axis of extension A2 of the handle 12.

Les organes d'appui 14,15 sont mobiles l'un par rapport à l'autre en pivotement par rapport à l'axe d'extension général A2 du manche 12, pour permettre un escamotage latéral du premier organe d'appui 14 par rapport au deuxième organe d'appui 15 en position d'ouverture de la pince 13, telle qu'illustrée sur les figures 1 et 3. L'escamotage latéral de l'un des organes d'appui 14, 15 est à considérer au regard d'un débattement radial des organes d'appui 14, 15 l'un par rapport à l'autre par rapport à l'axe de pivot A1 du premier organe d'appui 14.The support members 14, 15 are movable relative to each other in pivoting relation to the general extension axis A2 of the handle 12, to allow lateral retraction of the first support member 14 relative to to the second support member 15 in the open position of the clamp 13, as illustrated in FIGS. figures 1 and 3 . The lateral retraction of one of the support members 14, 15 is to be considered in view of a radial displacement of the support members 14, 15 relative to each other with respect to the axis of A1 pivot of the first support member 14.

L'escamotage latéral des organes d'appui 14, 15 l'un par rapport à l'autre permet de ménager un accès vers le premier organe d'appui 14, sans gêne de la présence du deuxième organe d'appui 15 susceptible de faire obstacle à cet accès. Un tel accès permet l'amenée vers le premier organe d'appui 14 d'un élément extérieur au manche, barre 16 de l'échafaudage notamment. Une telle amenée est autorisée sensiblement suivant une direction D parallèle à l'axe d'extension générale A2 du manche 12, depuis son extrémité proximale vers son extrémité distale.The lateral retraction of the support members 14, 15 relative to each other allows access to the first support member 14, without hindering the presence of the second support member 15 may make obstacle to this access. Such access allows the supply to the first support member 14 of an element outside the handle, bar 16 of the scaffold in particular. Such a feed is permitted substantially in a direction D parallel to the general axis of extension A2 of the handle 12, from its proximal end towards its distal end.

Le premier organe d'appui 14 est agencé en cage de réception de la barre 16, en étant structurée en griffe 20 délimitant le volume intérieur de la cage. La griffe 20 comporte deux branches 21, 22 qui sont disposées à distance radiale l'une de l'autre à un même côté du manche 12. Les branches 21, 22 sont alignées suivant une orientation transversale à l'axe d'extension générale A2 du manche 12, en étant réparties de part et d'autre de l'axe de pivot A1 du premier organe d'appui 14 correspondant à l'axe d'extension générale A2 du manche 12.The first support member 14 is arranged in a receiving cage of the bar 16, being structured in claw 20 defining the interior volume of the cage. The claw 20 comprises two branches 21, 22 which are arranged at a radial distance from one another on the same side of the handle 12. The branches 21, 22 are aligned in an orientation transverse to the axis of general extension A2 of the handle 12, being distributed on either side of the pivot axis A1 of the first support member 14 corresponding to the general extension axis A2 of the handle 12 .

Chacune des branches 21, 22 comprend une tige 23 qui est en prise sur le manche 12 à sa base. La tige 23 s'étend suivant une orientation parallèle à l'axe d'extension générale A2 du manche 12. La tige 23 est prolongée par un rabat 24 qui s'étend suivant une orientation orthogonale à l'axe d'extension générale A2 du manche 12. Le rabat 24 forme un point d'appui antagoniste à l'appui que procure le deuxième organe d'appui 15 en position de fermeture de la pince 13. Le rabat 24 est prolongé par un retour 25 qui s'étend suivant une orientation parallèle à celle de la tige 23.Each of the branches 21, 22 comprises a rod 23 which is engaged on the handle 12 at its base. The rod 23 extends in an orientation parallel to the axis of general extension A2 of the handle 12. The rod 23 is extended by a flap 24 which extends in an orientation orthogonal to the axis of general extension A2 of 12. The flap 24 forms an antagonistic support point to the support provided by the second support member 15 in the closed position of the clamp 13. The flap 24 is extended by a return 25 which extends along a parallel orientation to that of the rod 23.

Les retours 25 et les tiges 23 que comportent chacune des branches 21,22 coopèrent entre eux pour former des moyens de blocage en pivotement du premier organe d'appui 14 placé en prise sur la barre 16. De tels moyens de blocage permettent de bloquer en pivotement le premier organe d'appui 14 en prise sur la barre 16, et d'autoriser un mouvement relatif en pivotement du deuxième organe d'appui 15 entraîné en rotation par l'intermédiaire du manche 12.The returns 25 and the rods 23 that each comprise the branches 21,22 cooperate with each other to form pivoting locking means of the first support member 14 placed in engagement on the bar 16. Such locking means allow to block in pivoting the first support member 14 engaged on the bar 16, and allowing a relative pivoting movement of the second support member 15 rotated through the handle 12.

Le deuxième organe d'appui 15 est agencé en fût 26, qui est solidaire de l'extrémité distale du manche 12 et qui reçoit le premier organe d'appui 14 en pivotement. Le fût 26 comporte un taquet 27 radialement étendu vers l'extérieur du manche 12. Le taquet 27 a une surface supérieure inclinée et constitue une portion à forme générale de came. Lorsque le fût 26 est entrainé en rotation autour de l'axe A2, le taquet 27 passe sous la barre. Du fait de cette surface supérieure inclinée, le taquet 27 vient exercer contre la barre une force d'appui de plus en plus importante au fur et à mesure du pivotement, jusqu'à ce que toute la partie 27 soit introduite sous la barre 16.The second support member 15 is arranged in barrel 26, which is integral with the distal end of the handle 12 and which receives the first support member 14 pivotally. The barrel 26 has a cleat 27 radially extended outwardly of the handle 12. The cleat 27 has an inclined upper surface and constitutes a generally cam-shaped portion. When the shaft 26 is rotated about the axis A2, the stop 27 passes under the bar. Due to this inclined upper surface, the stop 27 comes to exert against the bar a support force of increasing importance as and pivoting, until all the portion 27 is introduced under the bar 16.

Le taquet 27 ménage un point d'appui antagoniste aux points d'appui que procurent les rabats 24 que comportent chacune des branches 21, 22 de la griffe 20. Une face de bout 28 du fût 26 comporte une lèvre axiale 31 qui ménage à ses extrémités radiales des butées 29, 30 de limitation de course en pivotement du premier organe d'appui 14 par rapport au deuxième organe d'appui 15.The cleat 27 provides an antagonistic point of support at the points of support provided by the flaps 24 that each of the branches 21, 22 of the claw 20 comprise. An end face 28 of the shank 26 has an axial lip 31 which radial ends of the stops 29, 30 for limiting the pivoting stroke of the first support member 14 with respect to the second support member 15.

L'application prioritaire de l'instrument représenté sur les figures 2 et 3 est relative à la prise et à la manipulation d'une barre 16. Selon cet exemple d'application et en position d'ouverture de la pince tel qu'illustré sur la figure 2, le premier organe d'appui 14 est placé en appui contre la barre 16 par l'intermédiaire des rabats 25. Le deuxième organe d'appui 15 est escamoté latéralement par rapport au premier organe d'appui 14. La prise d'appui du premier organe d'appui 14 contre la barre 16, induit son blocage en pivotement par l'intermédiaire des retours 25 et des tiges 23 ménagés par les branches 21, 22. En position de fermeture de la pince 13 tel qu'illustré sur la figure 3, les organes d'appui 14,15 sont placés en superposition distante suivant l'axe d'orientation générale A2 d'extension du manche 12, à partir d'une rotation relative du premier organe d'appui 14 et du deuxième organe d'appui 14 qui est effectuée par rotation du manche 12 opérée à partir de son extrémité proximale de préhension.The priority application of the instrument represented on the Figures 2 and 3 relates to the gripping and handling of a bar 16. According to this example of application and in the open position of the clamp as illustrated on FIG. figure 2 , the first support member 14 is placed in abutment against the bar 16 via the flaps 25. The second support member 15 is retracted laterally relative to the first support member 14. The support bearing of the first bearing member 14 against the bar 16, induces its blocking in pivoting through the returns 25 and rods 23 formed by the branches 21, 22. In the closed position of the clamp 13 as shown on the figure 3 , the support members 14, 15 are placed in a distance superposition along the axis of general orientation A2 of extension of the sleeve 12, from a relative rotation of the first support member 14 and the second member of support 14 which is performed by rotation of the handle 12 operated from its proximal end gripping.

La barre 16 est prisonnière entre le premier organe d'appui 14 et le deuxième organe d'appui 15, qui exercent des appuis antagonistes contre la barre 16. Un jeu de flottement de la barre 16 à l'intérieur de la griffe 20 est susceptible d'être autorisé, jusqu'à l'obtention d'un blocage spontané de la barre 16 entre les organes d'appui 14, 15 sous l'effet de son propre poids. Un tel jeu de flottement est autorisé sans échappée de la barre 16 hors de la griffe 20, qui est retenue par les retours 25. Un tel jeu de flottement permet une adaptation de la pince 13 à une préhension de barres 16 de sections respectives potentiellement différentes.The bar 16 is trapped between the first support member 14 and the second support member 15, which exert antagonistic supports against the bar 16. A floating game of the bar 16 inside the claw 20 is susceptible to be authorized, until a spontaneous locking of the bar 16 between the support members 14, 15 under the effect of its own weight. Such a floating game is allowed without escaping from the bar 16 out of the claw 20, which is retained by the returns 25. Such a floating game allows an adaptation of the clamp 13 to a gripping bars 16 of potentially different respective sections .

L'application subsidiaire de l'instrument, illustrée sur la figure 4, est relative à une prise d'appui sur un élément 19 de l'échafaudage pour exercer contre cet élément 19 une traction. L'élément 19 de l'échafaudage est par exemple un organe de fixation d'une barre 16, tel que sur l'exemple illustré. Un tel organe de fixation, ou verrou, est par exemple agencé en crochet articulé en basculement à l'une de ses extrémités d'une barre 16. Le premier organe d'appui 14 constitue un organe de traction sur l'élément 19 de l'échafaudage, contre lequel le premier organe d'appui 14 est apte à prendre prise par l'intermédiaire de la griffe 20.The subsidiary application of the instrument, illustrated on figure 4 , relates to a bearing on an element 19 of the scaffolding to exert against this element 19 a traction. The element 19 of the scaffolding is for example a member for fixing a bar 16, as in the illustrated example. Such a fastener, or latch, is for example arranged as a pivotally hinged hook at one of its ends of a bar 16. The first support member 14 constitutes a traction member on the element 19 of the scaffolding, against which the first support member 14 is adapted to take hold via the claw 20.

L'instrument de fixation peut servir à la préhension et à la manipulation d'une barre de type lisse, comme décrit ci-dessus.The attachment instrument can be used for gripping and handling a smooth type bar as described above.

Cet instrument comporte un manche et un outil de saisie à l'extrémité distale du manche.This instrument has a handle and a grasping tool at the distal end of the handle.

Dans un mode de réalisation non représenté, l'extrémité proximale de la manche peut être équipée d'un moyen de fixation à un ustensile ou à un moyen de support d'ustensile(s), par exemple un seau apte à contenir des ustensiles. Ce moyen de fixation peut par exemple comprendre un clou, un crochet, ou autre.In an embodiment not shown, the proximal end of the handle may be equipped with a means for attachment to a utensil or a means of support of utensil (s), for example a bucket suitable for containing utensils. This fixing means may for example comprise a nail, a hook, or other.

Par ustensile, on entend ici un outil au sens commun du terme, par exemple un tournevis, un pinceau, un seau apte à contenir un fluide du type peinture, etc.By utensil, here means a tool in the common sense of the term, for example a screwdriver, a brush, a bucket adapted to contain a paint type fluid, etc.

L'instrument peut ainsi servir de moyen de fixation d'ustensile(s) à l'échafaudage. L'outil de saisie permet la fixation à une barre horizontale de l'échafaudage, du type lisse ou échelon, et le ou les ustensiles à l'autre bout du manche peuvent ainsi être facilement accessibles aux personnes travaillant sur l'échafaudage.The instrument can thus serve as a means of attaching utensil (s) to the scaffolding. The gripping tool allows the attachment to a horizontal bar of the scaffold, the smooth type or step, and the utensil or tools at the other end of the handle can thus be easily accessible to people working on the scaffolding.

Dans ce mode de réalisation, le manche peut alors avoir des dimensions réduites, par exemple de l'ordre du mètre ou de la cinquantaine de centimètres.In this embodiment, the handle can then have reduced dimensions, for example of the order of one meter or fifty centimeters.

Les personnes travaillant sur l'échafaudage peuvent ainsi installer et désinstaller facilement cet instrument, par simple rotation d'un quart de tour, et avoir leurs ustensiles de travail à portée de main pendant l'intervention.People working on scaffolding can easily install and uninstall this instrument, by simply turning a quarter of a turn, and have their working tools at hand during the procedure.

Claims (13)

  1. Instrument for gripping an elongate element (16), in particular of the rail type, of a scaffolding device, said instrument comprising:
    - a handle (12) which extends in a longitudinal direction (A1),
    - a gripping tool which can be moved between an open position in which said elongate element (16) can be inserted or removed and a closed position suitable for receiving and rigidly holding the elongate element (16).
  2. Instrument according to Claim 1, in which the gripping instrument is configured such that a movement of the handle moves the gripping tool between its closed and open positions.
  3. Instrument according to either of Claims 1 and 2, in which the gripping tool is configured as a pincer (13) and comprises a first bearing member (14) and a second bearing member (15), which are mounted on the handle and are designed to be positioned on either side of the elongate element.
  4. Instrument according to Claim 3, in which the gripping instrument is configured such that a rotation of the handle about said longitudinal axis moves at least one of the bearing members from a position in which the pincer is open to a position in which the pincer is closed, and/or vice versa.
  5. Instrument according to either of Claims 3 and 4, in which the first bearing member (14) is mounted pivotably on the handle (12) and is provided with means (23, 25) for locking it in rotation with respect to the second bearing member,
    the second bearing member (15) is mounted secured to the handle, such that rotating the handle moves said second bearing member.
  6. Instrument according to Claim 5, in which the locking means (23, 25) are arranged so as to bear against the elongate element (16) when the handle (12) is actuated in rotation.
  7. Instrument according to one of Claims 3 to 6, in which the second bearing member (15) comprises a camshaped portion (27) such that pivoting said bearing member through part of a turn brings said second member to bear against the elongate element to be gripped.
  8. Instrument according to Claim 7, said instrument being configured such that, when the pincer is in the open position, the bearing members (14, 15) are radially offset from one another with respect to the longitudinal axis of the handle.
  9. Instrument according to one of Claims 3 to 8, in which the second bearing member (15) comprises at least one stop (29, 30) for limiting the pivoting travel with respect to the first bearing member (14).
  10. Instrument according to one of Claims 3 to 9, in which the second bearing member (15) is obtained by moulding.
  11. Instrument according to one of Claims 3 to 10, in which the first bearing member (14) comprises a claw (20) which is able to grip the elongate element (16).
  12. Instrument according to one of Claims 1 to 11, further comprising an attachment means mounted on one end of the handle, for attaching a utensil or a support for a utensil.
  13. Scaffolding assembly comprising a scaffolding device and an instrument according to one of Claims 1 to 12.
EP20120190854 2011-10-31 2012-10-31 Tool for attachment to an elongate element for a scaffolding device Active EP2586931B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1159870A FR2981967B1 (en) 2011-10-31 2011-10-31 FIXING INSTRUMENT WITH AN EXTENDED ELEMENT FOR A SCAFFOLDING DEVICE

Publications (2)

Publication Number Publication Date
EP2586931A1 EP2586931A1 (en) 2013-05-01
EP2586931B1 true EP2586931B1 (en) 2014-12-17

Family

ID=47073367

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20120190854 Active EP2586931B1 (en) 2011-10-31 2012-10-31 Tool for attachment to an elongate element for a scaffolding device

Country Status (3)

Country Link
EP (1) EP2586931B1 (en)
ES (1) ES2532846T3 (en)
FR (1) FR2981967B1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102022118453A1 (en) 2022-07-22 2024-01-25 Peri Se Mounting device

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103334581A (en) * 2013-07-12 2013-10-02 中国建筑股份有限公司 Vertical form board scaffold device

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3861731A (en) * 1973-08-27 1975-01-21 Jay De Young Boat handler
DE102007011716B4 (en) * 2007-03-10 2010-05-12 Hymer-Leichtmetallbau Gmbh & Co. Kg Method for assembling and dismantling a work scaffold and assembly aid for this
FR2922929B1 (en) 2007-10-29 2017-03-03 Duarib SAFETY GUARD RAIL ASSEMBLED IN SAFETY ON SCAFFOLD PROTECTION HAVING SUCH SMOOTH AND ASSEMBLY METHOD
FR2937359B1 (en) * 2008-10-21 2010-12-10 Tubesca SOLIDARY SCALE AND SUBLIND ASSEMBLY FOR SCAFFOLDING, METHOD OF MOUNTING AND SCAFFOLDING OBTAINED
FR2946375B1 (en) * 2009-06-03 2015-08-21 Duarib GUARD RAIL COMPRISING TWO SLIDING RAMPS AND CORRESPONDING SCAFFOLDING
DE102009041448A1 (en) * 2009-09-16 2011-03-31 Hymer-Leichtmetallbau Gmbh & Co. Kg Side protection guardrails for work scaffolding, have horizontal longitudinal bars at which directional frame part is fastened downwardly and diagonal bar is fastened at one side of longitudinal bars

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102022118453A1 (en) 2022-07-22 2024-01-25 Peri Se Mounting device

Also Published As

Publication number Publication date
EP2586931A1 (en) 2013-05-01
ES2532846T3 (en) 2015-04-01
FR2981967A1 (en) 2013-05-03
FR2981967B1 (en) 2013-12-20

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