EP1216120B1 - Rotational driving tool for screwing member - Google Patents

Rotational driving tool for screwing member Download PDF

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Publication number
EP1216120B1
EP1216120B1 EP00960781A EP00960781A EP1216120B1 EP 1216120 B1 EP1216120 B1 EP 1216120B1 EP 00960781 A EP00960781 A EP 00960781A EP 00960781 A EP00960781 A EP 00960781A EP 1216120 B1 EP1216120 B1 EP 1216120B1
Authority
EP
European Patent Office
Prior art keywords
head
component
rotation
tool according
manoeuvring
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP00960781A
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German (de)
French (fr)
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EP1216120A1 (en
Inventor
Gérard Charles Camille BRIHIER
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Facom SA
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Facom SA
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Publication date
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B23/00—Details of, or accessories for, spanners, wrenches, screwdrivers
    • B25B23/14—Arrangement of torque limiters or torque indicators in wrenches or screwdrivers
    • B25B23/142—Arrangement of torque limiters or torque indicators in wrenches or screwdrivers specially adapted for hand operated wrenches or screwdrivers
    • B25B23/1422—Arrangement of torque limiters or torque indicators in wrenches or screwdrivers specially adapted for hand operated wrenches or screwdrivers torque indicators or adjustable torque limiters
    • B25B23/1427—Arrangement of torque limiters or torque indicators in wrenches or screwdrivers specially adapted for hand operated wrenches or screwdrivers torque indicators or adjustable torque limiters by mechanical means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B13/00—Spanners; Wrenches
    • B25B13/02—Spanners; Wrenches with rigid jaws
    • B25B13/08—Spanners; Wrenches with rigid jaws of open jaw type

Definitions

  • the invention relates to a rotational drive tool for an organ screwing device, in particular a hand tool, of the type comprising a head presenting minus two gripping surfaces for driving the screwing member by complementarity, at least partial of form, and means of training in rotation of the head, the head behaving overall like a piece monobloc when driving in rotation of a screw member, the head comprising a bonding region of the gripping surfaces and parts of transmission to the gripping surfaces of a rotational force applied to the means of training, the connecting region being situated between the parts of transmission of effort and grip surfaces.
  • the invention applies, for example, to open-end wrenches.
  • the head of such a key has two open rigid jaws which each have a gripping surface for a screw member such as a nut.
  • the two gripping surfaces are facing each other.
  • the phenomenon therefore limits the value of couples that can be transmitted by such a fork open key.
  • This phenomenon is present from generally in the tools that do not allow, unlike by clamp pliers for example, clamping of the socket surfaces independent of the drive in rotation.
  • the invention aims to solve this problem by providing a tool of the aforementioned type allowing, for example, to exert on a screwdriver increased couples.
  • the subject of the invention is a tool of the aforementioned type, characterized in that the head is adapted so that the action of the drive means in rotation on the force transmission parts tends to deform elastically the geometry of the head to bring the gripping surfaces closer to one another when applying through the means of training a training effort in rotation of a screwing member.
  • head having at least two gripping surfaces for to rotate a screwing member by complementarity at least partial form "a head allowing the training of such an organ that their respective shapes, such as polygonal shapes, do not allow relative rotation.
  • the head also behaves functionally overall as a single piece of stiffness large enough for that, when used, the functional geometry of the head remains generally unchanged, except under the effect of deformation in charge and the compensation thereof according to the invention as will be described later.
  • FIG. 1 illustrates a flat open end wrench 1 ready to drive a nut 2 in rotation.
  • the key 1 essentially comprises a head 4 and a separate handle 5.
  • the head 4 which can be made of a less powerful material than steel and in particular of modulus of elasticity lower than 150 GigaPascal, has a H-shaped and comprises two rectilinear branches 6 longitudinal with respect to a central axis X-X.
  • the branches 6 are interconnected by a core 7 central and transverse.
  • Each branch 6 includes on both sides of the soul 7 a distal end region 8 (left in Fig. 1), and a region proximal end 9.
  • the core 7, integral with the branches 6, is relatively thin and elastically deformable at least in flexion.
  • the distal end regions or jaws 8 each have a flat surface 10 of engagement with the nut 2.
  • the gripping surfaces 10 are oriented towards the inside of the head 4 and face each other.
  • the core 7 because of its possibility of deformation, forms a means of orientation branches 6 one compared to each other.
  • branches 6 are movable in rotation relative to each other in the plane of Figures 1 and 4, on either side of a rest position, such represented in solid lines in FIG. 1 and in dashed lines in FIG.
  • This rest position corresponds to the case where no force is applied 6.
  • the branches are parallel to each other and parallel to the X-X axis.
  • the distal end 8 and proximal 9 regions can therefore respectively approaching and departing by bending deformation of the core 7.
  • branches 6 are movable between their rest position and a position in which their distal end regions 8 are brought together ( Figure 4) while their proximal end regions 9 are separated one the other.
  • the handle 5 is an elongated bar of axis Y-Y and has a transversal dimension slightly less than the spacing between the two proximal end regions 9 of the branches 6.
  • the distal end region 12 of the handle 5 is received at low clearance between the proximal end regions 9 of the branches 6.
  • the nut 2 is a hex nut received between the end regions distal 8 branches 6.
  • the gripping surfaces 10 of the head 6 are located in facing two opposite sides of the nut 2.
  • the head 4 has, by its surfaces of 10, a shape partially complementary to that of the nut 2.
  • the handle 5 is rotatable relative to the head 4 in the plane of Figure 1, on either side of its rest position, between two positions spacing branches 6 illustrated respectively in Figures 2 and 3.
  • the handle 5 has pivoted relative to the head 6 in the direction 14 of the nut 2.
  • the distal end region 12 of the handle 5 takes then support at a point 15 on the free end of the lower branch 6 (on the FIG. 2) of the head 4, and at a point 16 adjacent to the core 7 on the other branch 6.
  • Points 15 and 16 are spaced apart longitudinally along the X-X axis.
  • the X-X and Y-Y axes are then also inclined relative to the other.
  • the handle 5 has rotated relative to the head 4 in the direction 18 of unscrewing the nut 2.
  • the distal end region 12 of the handle 5 then bears in a first point 15 on the upper branch 6 (in FIG. 3) of the head 4 and in a second point 16 on the other branch 6 of the head 4.
  • the fulcrums 15 and 16 then have a relative longitudinal position similar to that of points 15 and 16 of the Figure 2.
  • the X-X and Y-Y axes are then also inclined with respect to the other.
  • the operating mode of the key 1 is as follows.
  • the handle 5 then reaches the position of FIG. 2 and drives the head 4 in rotation in the direction 14. A tightening torque is therefore applied to the nut 2 due to the partial complementarity of shape between the head 4 and the nut 2.
  • the proximal end regions 9 then form stress transmission parts from the handle 5 to the gripping surfaces 10 and thus to the nut 2.
  • the handle 5 plays, thanks to the two support points 15 and 16 shifted longitudinally, the role of a lever of the first order and tends to remove the proximal end regions 9 of the branches 6 of the head 4.
  • distal end regions 8 of these branches 6 tend to closer. This effect tends to offset the tendency to widen distal end regions 8 of the branches 6 and therefore to limit the relative rotation the nut 2 with respect to the head 4.
  • the handle 5 when applying a force 24 of unscrewing the nut 2 on the proximal end 21 of the handle 5, the handle 5 takes the position illustrated in Figure 3 and tends on the one hand to drive the nut 2 in the direction of rotation 18 and, secondly, to bring the regions closer together through distal end 8 of the branches 6.
  • the key 1 allows, in both directions of training, to limit the rotation between the nut 2 and the head 4 and also the risk of bursting of the head 4.
  • the key 1 allows the transmission of couples more important that a conventional open-end wrench.
  • key 1 allows to access a screw member as easily as a spanner classic.
  • Key 1 of FIG. 5 differs from that of FIGS. 1 to 4 in that that the head 4 and the handle 5 are no longer separated but connected by a blade longitudinal 26 material coming with the soul 7 of the head 4 and the region distal end 12 of the handle 5.
  • This blade 26 can be deformed, for example in flexion, so that it form between the head 4 and the handle 5 a flexible connection allowing the latter to pivot relative to the head 4 to take the positions shown on the Figures 2 and 3.
  • the proximal end regions 9 of the head 4 comprise four inner beads 27 arranged in pairs on these regions 9.
  • the beads 27 of the same region 9 are spaced from each other and face the beads 27 of the other region 9.
  • These beads 27 form support reliefs of the handle 5 on the proximal end regions 9 when the handle 5 will take, relative to the head 4, the positions of Figures 2 and 3. Note that in the rest position represented in FIG. 5, the four beads 27 are practically at contact of the handle 5.
  • the blade 26 may not have come of material both with the head 4 and the handle 5, but fixed by welding to the head 4 and / or handle 5.
  • the blade 26 is replaced by a elastomer insert, made integral with both the head 4 and the sleeve 5 by means known per se (mechanical means or overmolding by injection, for example).
  • the head 4 comprises bearing reliefs of 5 against the proximal end regions 9 of the branches 6, namely a pair of beads 28 and a pair of pins 29. These reliefs protrude from the branches 6 to the distal end region 12 of the handle 5.
  • the beads 28, on the one hand, and the pins 29, on the other hand, are arranged opposite. However, according to other variants the beads 28 and the pawns 29 may be arranged otherwise.
  • the beads 28 came from each material with the region proximal end 9 of a branch 6 and are further from the central core 7 that the pawns 29.
  • the pins 29, of cylindrical shape, are each received in a recess 30 formed in the proximal end region 9 of a branch 6.
  • the head 4 carries two pairs of recesses 30 which can receive the pins 29 and spaced along the X-X axis.
  • the beads 28 and the pins 29 define the points of support of the handle 5 on the head 4 so that it fulfills its role of lever. It is then possible to adjust, by changing the position of the counters 29, the intensity of the trend to the approximation of surfaces 10 induced by a training effort in rotation of a nut 2 applied to the handle 5.
  • FIG. 7 illustrates another tool 1 according to the invention that differs from the key in FIGS. 1 to 4 in that the handle has been replaced by an 5 T-shaped maneuver and which thus comprises a transmission bar 32 prolonged torque by a handle 33.
  • the distal end region 34 of the actuator 5 is received at weak clearance between the proximal end regions 9 of the branches 6.
  • the proximal end regions of the head 4 present four beads 27 of support of the region 34 of the actuating member 5 on the head 4.
  • This region 34 has a rectangular section and is provided with a bore transversal 36.
  • a transverse pin 37 passes through the two branches 6 and the bore 36.
  • This pin 37 connects the operating member 5 and the head 4 in for orienting the operating member 5 relative to the head 4, by rotation about the axis of the pin 37.
  • the bar 32 may be located off the plane of the head 4, for example inclined or perpendicular to this plane as shown in Figure 7.
  • the clearance between the bore 36 and the pin 37 is sufficiently important for, when in the position of Figure 7 is applied to the handle 33 a torque drive in rotation of a nut, allow the rotation of the bar 32 about its longitudinal axis relative to the head 4.
  • the region 34 of the bar 32 then bears on the beads 27 and thus tends to spread by effect cam regions 9 branches 6 to tend to bring the surfaces of taken 10 as before.
  • the pin 37 is removable to allow separation the head 4 and the body 5, and thus to connect heads 4 of sizes and shapes different to the actuator 5.
  • the handle 5 of the key of FIGS. 1 to 4 has been replaced by the outlet end 40 of a key Dynamometric 41.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
  • Gripping On Spindles (AREA)
  • Manipulator (AREA)

Abstract

A tool (1) comprising a head (4) having at least two engaging surfaces (10) for driving the screwing member by its at least partially matching shape and a device (5) for driving the head rotation. The head globally behaves as a single-piece part when the screwing member is driven in rotation. The head includes a zone (7) linking the engaging surfaces and parts (9) transmitting to the engaging surfaces a rotation force applied on the driving device. The linking zone is located between the force-transmitting parts and the engaging parts. The head is designed such that the action of the rotational driving device on the force-transmitting parts tends to deform the shape of the head so as to bring the engaging surfaces closer to each other when a rotational driving force is applied via the driving device on the screwing member. The present invention is, for example, applicable to flat open-end wrenches.

Description

L'invention concerne un outil d'entraínement en rotation pour un organe de vissage, notamment outil à main, du type comprenant une tête présentant au moins deux surfaces de prise pour entraíner l'organe de vissage par complémentarité au moins partielle de forme, et des moyens d'entraínement en rotation de la tête, la tête se comportant globalement comme une pièce monobloc lors de l'entraínement en rotation d'un organe de vissage, la tête comprenant une région de liaison des surfaces de prise et des parties de transmission vers les surfaces de prise d'un effort de rotation appliqué sur les moyens d'entraínement, la région de liaison étant située entre les parties de transmission d'effort et les surfaces de prise.The invention relates to a rotational drive tool for an organ screwing device, in particular a hand tool, of the type comprising a head presenting minus two gripping surfaces for driving the screwing member by complementarity, at least partial of form, and means of training in rotation of the head, the head behaving overall like a piece monobloc when driving in rotation of a screw member, the head comprising a bonding region of the gripping surfaces and parts of transmission to the gripping surfaces of a rotational force applied to the means of training, the connecting region being situated between the parts of transmission of effort and grip surfaces.

L'invention s'applique, par exemple, aux clés plates à fourche.The invention applies, for example, to open-end wrenches.

La tête d'une telle clé comporte deux mâchoires rigides ouvertes qui présentent chacune une surface de prise pour un organe de vissage tel qu'un écrou. Les deux surfaces de prise sont en regard l'une de l'autre.The head of such a key has two open rigid jaws which each have a gripping surface for a screw member such as a nut. The two gripping surfaces are facing each other.

Lorsqu'on utilise une telle clé pour transmettre un couple à un écrou, la fourche se déforme de sorte que les surfaces de prise s'écartent. L'écrou, de ce fait, tourne par rapport à la fourche. Ceci modifie les points d'appui entre l'écrou et la fourche en tendant à rapprocher les vecteurs de force (théoriquement parallèles) correspondant au couple. De ce fait, pour un couple donné, l'intensité des forces correspondantes augmente. Cette augmentation entraíne à son tour une augmentation de la flexion de la fourche. Le phénomène s'amplifie lui-même et, au-delà d'une certaine valeur, il y a rotation totale de l'écrou dans la fourche avec souvent destruction de cette dernière. On peut dire que l'écrou se transforme alors en une véritable came qui fait éclater la clé.When such a key is used to transmit a torque to a nut, the fork deforms so that the grip surfaces move apart. The nut, of this done, turn relative to the fork. This modifies the points of support between the nut and fork tending to bring the force vectors closer together (theoretically parallel) corresponding to the couple. As a result, for a given couple, the intensity corresponding forces increase. This increase leads in turn an increase in flexion of the fork. The phenomenon is amplifying itself and, beyond a certain value, there is total rotation of the nut in the fork with often destruction of the latter. We can say that the nut is then transforms into a real cam that pops the key.

Le phénomène limite donc la valeur des couples qui peuvent être transmis par une telle clé plate à fourche. Ce phénomène est présent de manière générale dans les outils qui ne permettent pas, contrairement par exemple aux pinces-étaux, un serrage des surfaces de prises indépendant de l'entraínement en rotation.The phenomenon therefore limits the value of couples that can be transmitted by such a fork open key. This phenomenon is present from generally in the tools that do not allow, unlike by clamp pliers for example, clamping of the socket surfaces independent of the drive in rotation.

L'invention a pour but de résoudre ce problème en fournissant un outil du type précité permettant par exemple d'exercer sur un organe de vissage des couples accrus. The invention aims to solve this problem by providing a tool of the aforementioned type allowing, for example, to exert on a screwdriver increased couples.

A cet effet, l'invention a pour objet un outil du type précité, caractérisé en ce que la tête est adaptée pour que l'action des moyens d'entraínement en rotation sur les parties de transmission d'effort tende à déformer élastiquement la géométrie de la tête pour rapprocher les surfaces de prise l'une de l'autre lorsqu'on applique par l'intermédiaire des moyens d'entraínement un effort d'entraínement en rotation d'un organe de vissage.For this purpose, the subject of the invention is a tool of the aforementioned type, characterized in that the head is adapted so that the action of the drive means in rotation on the force transmission parts tends to deform elastically the geometry of the head to bring the gripping surfaces closer to one another when applying through the means of training a training effort in rotation of a screwing member.

Selon des modes particuliers de réalisation, l'outil peut comprendre l'une ou plusieurs des caractéristiques suivantes, pnse(s) isolément ou selon toutes les combinaisons techniquement possibles :

  • la tête est adaptée pour que ladite action des moyens d'entraínement en rotation tende à déformer élastiquement la tête,
  • les moyens d'entraínement en rotation de la tête comprennent un organe de manoeuvre de la tête,
  • l'organe de manoeuvre de la tête est mobile par rapport à celle-ci pour tendre à rapprocher les surfaces de prise l'une de l'autre, par effet de levier ou de came sur les parties de transmission d'effort, lorsqu'on applique sur l'organe de manoeuvre un effort d'entraínement en rotation d'un organe de vissage,
  • la tête a une configuration générale en H et comprend deux branches reliées par une âme centrale, une région distale de chaque branche présentant une des surfaces de prise et les régions proximales des branches formant lesdites parties de transmission d'effort, les deux branches sont mobiles l'une par rapport à l'autre par déformation de l'âme centrale pour rapprocher les surfaces de prise l'une de l'autre par écartement de régions proximales des branches, et une région distale de l'organe de manoeuvre est disposée entre les régions proximales des branches pour les écarter, par effet de levier ou de came, lorsqu'on applique sur l'organe de manoeuvre un effort d'entraínement en rotation d'un organe de vissage,
  • l'organe de manoeuvre est relié à la tête par une liaison souple,
  • la liaison souple comprend une partie déformable et venue de matière avec la tête et l'organe de manoeuvre,
  • l'organe de manoeuvre et la tête sont séparés ou séparables,
  • l'outil comprend des moyens amovibles de liaison de la tête et de l'organe de manoeuvre,
  • l'organe de manoeuvre est orientable par rapport à la tête,
  • l'organe de manoeuvre fait partie d'un outil dynamométrique,
  • l'outil comprend des moyens de réglage de la tendance à la déformation de la tête sous ladite action des moyens d'entraínement en rotation,
  • la tête comprend deux mâchoires ouvertes qui présentent chacune au moins une des surfaces de prise,
  • la liaison souple est réalisée en élastomère.
According to particular embodiments, the tool may comprise one or more of the following features, in isolation or in any technically possible combination:
  • the head is adapted so that said action of the rotating drive means tends to elastically deform the head,
  • the drive means for rotating the head comprise an actuator of the head,
  • the actuator of the head is movable relative thereto to tend to bring the engagement surfaces of each other, by leverage or cam on the force transmission parts, when an actuating force is applied to the actuating member in rotation of a screwing member,
  • the head has a general configuration in H and comprises two branches connected by a central core, a distal region of each branch having one of the gripping surfaces and the proximal regions of the branches forming said force transmission parts, the two branches are movable relative to each other by deformation of the central core to bring the gripping surfaces closer to each other by spacing proximal regions of the branches, and a distal region of the actuating member is disposed between the proximal regions of the branches to move them away, by lever or cam effect, when a drive force is applied to the actuating member in rotation of a screwing member,
  • the operating member is connected to the head by a flexible connection,
  • the flexible connection comprises a deformable portion and integral with the head and the actuating member,
  • the operating member and the head are separated or separable,
  • the tool comprises removable means for connecting the head and the operating member,
  • the operating member is orientable relative to the head,
  • the operating member is part of a dynamometric tool,
  • the tool comprises means for adjusting the tendency to deformation of the head under said action of the rotating drive means,
  • the head comprises two open jaws which each have at least one of the gripping surfaces,
  • the flexible connection is made of elastomer.

On entend ici par " tête présentant au moins deux surfaces de prise pour entraíner en rotation un organe de vissage par complémentarité au moins partielle de forme " une tête permettant l'entraínement d'un tel organe du fait que leurs formes respectives, comme par exemple des formes polygonales, n'autorisent pas de rotation relative.Here is meant by "head having at least two gripping surfaces for to rotate a screwing member by complementarity at least partial form "a head allowing the training of such an organ that their respective shapes, such as polygonal shapes, do not allow relative rotation.

Dans l'invention, la tête se comporte en outre fonctionnellement globalement comme une pièce monobloc de raideur suffisamment grande pour que, lors de l'utilisation, la géométrie fonctionnelle de la tête demeure globalement inchangée, sauf sous l'effet de la déformation en charge et la compensation de celle-ci selon l'invention ainsi qu'il sera décrit plus loin.In the invention, the head also behaves functionally overall as a single piece of stiffness large enough for that, when used, the functional geometry of the head remains generally unchanged, except under the effect of deformation in charge and the compensation thereof according to the invention as will be described later.

L'invention sera mieux comprise à la lecture de la description qui va suivre, donnée uniquement à titre d'exemple, et faite en se référant aux dessins annexés, sur lesquels :

  • la figure 1 est une vue schématique en plan d'une clé plate à fourche selon l'invention, prête à entraíner un écrou en rotation,
  • les figures 2 et 3 sont des vues analogues à la figure 1, illustrant la clé lorsqu'un effort de vissage et respectivement un effort de dévissage de l'écrou est appliqué sur son manche,
  • la figure 4 est une vue en plan et agrandie de la tête de la clé des figures 1 à 3, illustrant schématiquement l'action sur celle-ci d'une rotation relative du manche de la clé,
  • les figures 5 et 6 sont des vues agrandies de dessus illustrant la tête et l'extrémité distale du manche de deux variantes de la clé des figures 1 à 4,
  • la figure 7 est une vue schématique en perspective d'un outil selon un autre mode de réalisation de l'invention, et
  • la figure 8 est une vue analogue à la figure 1 illustrant encore un autre mode de réalisation de l'invention.
The invention will be better understood on reading the description which follows, given solely by way of example, and with reference to the appended drawings, in which:
  • FIG. 1 is a diagrammatic plan view of a flat open-end wrench according to the invention, ready to drive a rotating nut,
  • FIGS. 2 and 3 are views similar to FIG. 1, illustrating the key when a screwing force and a nut unscrewing force is applied to its handle,
  • FIG. 4 is a plan view and enlarged of the head of the key of FIGS. 1 to 3, schematically illustrating the action thereon of a relative rotation of the handle of the key,
  • FIGS. 5 and 6 are enlarged views from above showing the head and the distal end of the handle of two variants of the key of FIGS. 1 to 4,
  • FIG. 7 is a schematic perspective view of a tool according to another embodiment of the invention, and
  • Figure 8 is a view similar to Figure 1 illustrating yet another embodiment of the invention.

La figure 1 illustre une clé plate à fourche 1 prête à entraíner un écrou 2 en rotation.FIG. 1 illustrates a flat open end wrench 1 ready to drive a nut 2 in rotation.

La clé 1 comprend essentiellement une tête 4 et un manche 5 séparés.The key 1 essentially comprises a head 4 and a separate handle 5.

La tête 4, qui peut être réalisée dans un matériau moins performant que l'acier et notamment de module d'élasticité inférieur à 150 GigaPascal, a une forme en H et comprend deux branches rectilignes 6 longitudinales par rapport à un axe central X-X. Les branches 6 sont reliées entre elles par une âme 7 centrale et transversale. Chaque branche 6 comprend de part et d'autre de l'âme 7 une région d'extrémité distale 8 (à gauche sur la figure 1), et une région d'extrémité proximale 9. L'âme 7, venue de matière avec les branches 6, est relativement mince et déformable élastiquement au moins en flexion.The head 4, which can be made of a less powerful material than steel and in particular of modulus of elasticity lower than 150 GigaPascal, has a H-shaped and comprises two rectilinear branches 6 longitudinal with respect to a central axis X-X. The branches 6 are interconnected by a core 7 central and transverse. Each branch 6 includes on both sides of the soul 7 a distal end region 8 (left in Fig. 1), and a region proximal end 9. The core 7, integral with the branches 6, is relatively thin and elastically deformable at least in flexion.

Les régions d'extrémité distale ou mâchoires 8 présentent chacune une surface plane 10 de prise avec l'écrou 2. Les surfaces de prise 10 sont orientées vers l'intérieur de la tête 4 et se font face.The distal end regions or jaws 8 each have a flat surface 10 of engagement with the nut 2. The gripping surfaces 10 are oriented towards the inside of the head 4 and face each other.

Comme illustré avec exagération par la figure 4, l'âme 7, du fait de sa possibilité de déformation, forme un moyen d'orientation des branches 6 l'une par rapport à l'autre.As illustrated with exaggeration in FIG. 4, the core 7, because of its possibility of deformation, forms a means of orientation branches 6 one compared to each other.

Ainsi, les branches 6 sont mobiles en rotation l'une par rapport à l'autre dans le plan des figures 1 et 4, de part et d'autre d'une position de repos, telle que représentée en trait fort sur la figure 1 et en pointillés sur la figure 4.Thus, the branches 6 are movable in rotation relative to each other in the plane of Figures 1 and 4, on either side of a rest position, such represented in solid lines in FIG. 1 and in dashed lines in FIG.

Cette position de repos correspond au cas où on n'applique pas de force sur les branches 6. Dans cette position, les branches sont parallèles entre elles et parallèles à l'axe X-X.This rest position corresponds to the case where no force is applied 6. In this position, the branches are parallel to each other and parallel to the X-X axis.

Les régions d'extrémité distale 8 et proximale 9 peuvent donc respectivement se rapprocher et s'écarter par déformation en flexion de l'âme 7.The distal end 8 and proximal 9 regions can therefore respectively approaching and departing by bending deformation of the core 7.

En particulier, les branches 6 sont mobiles entre leur position de repos et une position dans laquelle leurs régions d'extrémité distale 8 sont rapprochées (figure 4) tandis que leurs régions d'extrémités proximale 9 sont écartées l'une de l'autre. In particular, the branches 6 are movable between their rest position and a position in which their distal end regions 8 are brought together (Figure 4) while their proximal end regions 9 are separated one the other.

Dès lors qu'un organe de vissage 2 est inséré entre les régions d'extrémité distale 8 des branches 6 de la tête 4, la mobilité des branches 6 est de ce fait limitée.Since a screwing member 2 is inserted between the regions distal end 8 branches 6 of the head 4, the mobility of the branches 6 is therefore limited.

Le manche 5 est une barre allongée d'axe Y-Y et possède une dimension transversale légèrement inférieure à l'espacement entre les deux régions d'extrémité proximale 9 des branches 6.The handle 5 is an elongated bar of axis Y-Y and has a transversal dimension slightly less than the spacing between the two proximal end regions 9 of the branches 6.

La région d'extrémité distale 12 du manche 5 est reçue à faible jeu entre les régions d'extrémité proximale 9 des branches 6.The distal end region 12 of the handle 5 is received at low clearance between the proximal end regions 9 of the branches 6.

Dans la position de repos représentée sur la figure 1, l'axe longitudinal X-X de la tête 4 est confondu avec l'axe longitudinal Y-Y du manche 5.In the rest position shown in FIG. 1, the longitudinal axis X-X of the head 4 coincides with the longitudinal axis Y-Y of the handle 5.

L'écrou 2 est un écrou à six pans reçu entre les régions d'extrémité distale 8 des branches 6. Les surfaces de prise 10 de la tête 6 sont situées en regard de deux pans opposés de l'écrou 2. La tête 4 a, de par ses surfaces de prise 10, une forme partiellement complémentaire de celle de l'écrou 2.The nut 2 is a hex nut received between the end regions distal 8 branches 6. The gripping surfaces 10 of the head 6 are located in facing two opposite sides of the nut 2. The head 4 has, by its surfaces of 10, a shape partially complementary to that of the nut 2.

Le manche 5 est mobile en rotation par rapport à la tête 4 dans le plan de la figure 1, de part et d'autre de sa position de repos, entre deux positions d'écartement des branches 6 illustrées respectivement par les figures 2 et 3.The handle 5 is rotatable relative to the head 4 in the plane of Figure 1, on either side of its rest position, between two positions spacing branches 6 illustrated respectively in Figures 2 and 3.

Sur la figure 2, le manche 5 a pivoté par rapport à la tête 6 dans le sens 14 de vissage de l'écrou 2. La région d'extrémité distale 12 du manche 5 prend alors appui en un point 15 sur l'extrémité libre de la branche 6 inférieure (sur la figure 2) de la tête 4, et en un point 16 voisin de l'âme 7 sur l'autre branche 6. Les points 15 et 16 sont espacés l'un de l'autre longitudinalement le long de l'axe X-X. Les axes X-X et Y-Y sont alors également inclinés l'un par rapport à l'autre.In FIG. 2, the handle 5 has pivoted relative to the head 6 in the direction 14 of the nut 2. The distal end region 12 of the handle 5 takes then support at a point 15 on the free end of the lower branch 6 (on the FIG. 2) of the head 4, and at a point 16 adjacent to the core 7 on the other branch 6. Points 15 and 16 are spaced apart longitudinally along the X-X axis. The X-X and Y-Y axes are then also inclined relative to the other.

Dans l'autre position d'écartement illustrée par la figure 3, le manche 5 a pivoté par rapport à la tête 4 dans le sens 18 de dévissage de l'écrou 2. La région d'extrémité distale 12 du manche 5 prend alors appui en un premier point 15 sur la branche 6 supérieure (sur la figure 3) de la tête 4 et en un deuxième point 16 sur l'autre branche 6 de la tête 4. Les points d'appui 15 et 16 ont alors une position longitudinale relative analogue à celle des points 15 et 16 de la figure 2. Les axes X-X et Y-Y sont alors également inclinés l'un par rapport à l'autre.In the other spacing position illustrated in FIG. 3, the handle 5 has rotated relative to the head 4 in the direction 18 of unscrewing the nut 2. The distal end region 12 of the handle 5 then bears in a first point 15 on the upper branch 6 (in FIG. 3) of the head 4 and in a second point 16 on the other branch 6 of the head 4. The fulcrums 15 and 16 then have a relative longitudinal position similar to that of points 15 and 16 of the Figure 2. The X-X and Y-Y axes are then also inclined with respect to the other.

Le mode de fonctionnement de la clé 1 est le suivant. The operating mode of the key 1 is as follows.

Lorsqu'on souhaite visser l'écrou 2, on applique, comme illustré par la figure 2, une force 20 sur la région d'extrémité proximale 21 du manche 5 tendant à faire pivoter ce dernier dans le sens de rotation 14.When it is desired to screw the nut 2, it is applied, as illustrated by the FIG. 2, a force 20 on the proximal end region 21 of the handle 5 tending to rotate the latter in the direction of rotation 14.

Le manche 5 atteint alors la position de la figure 2 et entraíne la tête 4 en rotation dans le sens 14. Un couple de vissage est donc appliqué sur l'écrou 2 du fait de la complémentarité partielle de forme entre la tête 4 et l'écrou 2. Les régions d'extrémité proximale 9 forment alors des parties de transmission d'effort du manche 5 vers les surfaces de prise 10 et donc vers l'écrou 2.The handle 5 then reaches the position of FIG. 2 and drives the head 4 in rotation in the direction 14. A tightening torque is therefore applied to the nut 2 due to the partial complementarity of shape between the head 4 and the nut 2. The proximal end regions 9 then form stress transmission parts from the handle 5 to the gripping surfaces 10 and thus to the nut 2.

Simultanément, le manche 5 joue, grâce aux deux points d'appui 15 et 16 décalés longitudinalement, le rôle d'un levier du premier ordre et tend à écarter les régions d'extrémité proximale 9 des branches 6 de la tête 4.Simultaneously, the handle 5 plays, thanks to the two support points 15 and 16 shifted longitudinally, the role of a lever of the first order and tends to remove the proximal end regions 9 of the branches 6 of the head 4.

Ainsi, les régions d'extrémité distale 8 de ces branches 6 tendent à se rapprocher. Cet effet tend alors à compenser la tendance à l'écartement des régions d'extrémité distale 8 des branches 6 et donc à limiter la rotation relative de l'écrou 2 par rapport à la tête 4.Thus, the distal end regions 8 of these branches 6 tend to closer. This effect tends to offset the tendency to widen distal end regions 8 of the branches 6 and therefore to limit the relative rotation the nut 2 with respect to the head 4.

Inversement, le relâchement de la force 20 sur le manche 5 autorise le retour en position de repos des régions d'extrémité distale 8 des branches 6.Conversely, the release of the force 20 on the handle 5 allows the return to the rest position of the distal end regions 8 of the branches 6.

De manière analogue, lorsqu'on applique une force 24 de dévissage de l'écrou 2 sur l'extrémité proximale 21 du manche 5, le manche 5 prend la position illustrée par la figure 3 et tend d'une part à entraíner l'écrou 2 dans le sens de rotation 18 et d'autre part à rapprocher, par effet de levier, les régions d'extrémité distale 8 des branches 6.Similarly, when applying a force 24 of unscrewing the nut 2 on the proximal end 21 of the handle 5, the handle 5 takes the position illustrated in Figure 3 and tends on the one hand to drive the nut 2 in the direction of rotation 18 and, secondly, to bring the regions closer together through distal end 8 of the branches 6.

Ainsi, l'effet de levier produit par le manche 5 tend à s'opposer à l'écartement par l'écrou 2 des surfaces de prise 10.Thus, the leverage produced by the handle 5 tends to oppose the distance by the nut 2 from the gripping surfaces 10.

Comme précédemment, le relâchement de la force 24 sur le manche 5 autorise le retour en position de repos des régions d'extrémité distale 8 des branches 6.As previously, the release of the force 24 on the handle 5 allows the return to the rest position of the distal end regions 8 of the branches 6.

On constate alors que la clé 1 permet, dans les deux sens d'entraínement, de limiter la rotation entre l'écrou 2 et la tête 4 et également les risques d'éclatement de la tête 4.We then note that the key 1 allows, in both directions of training, to limit the rotation between the nut 2 and the head 4 and also the risk of bursting of the head 4.

Par conséquent, la clé 1 permet la transmission de couples plus importants qu'un clé plate à fourche classique. Pour autant, la clé 1 permet d'accéder à un organe de vissage aussi facilement qu'une clé à fourche classique.Therefore, the key 1 allows the transmission of couples more important that a conventional open-end wrench. However, key 1 allows to access a screw member as easily as a spanner classic.

En jouant sur les dimensions et la forme de la tête 4, il est possible soit uniquement de compenser ou de limiter la tendance à l'écartement des surfaces de prise 10, mais également de surmonter cette tendance par un effet relativement important de rapprochement de ces surfaces de prise 10 sous l'action du manche 5. Ainsi, pour certaines géométries de clés 1, on constate, pour certaines gammes de couples transmis à un écrou 2, un effet de resserrement des surfaces de prise 10 autour de l'écrou 2 lorsqu'on applique une force sur le manche 5.By playing on the dimensions and shape of the head 4, it is possible to only to compensate for or limit the tendency to spread the surfaces take 10, but also to overcome this tendency by an effect relatively large approximation of these surfaces 10 the action of the handle 5. Thus, for certain key geometries 1, it can be seen that for certain ranges of couples transmitted to a nut 2, an effect of tightening the gripping surfaces 10 around the nut 2 when applied a force on the handle 5.

La clé 1 de la figure 5 se distingue de celle des figures 1 à 4 par le fait que la tête 4 et le manche 5 ne sont plus séparés mais reliés par une lame longitudinale 26 venue de matière avec l'âme 7 de la tête 4 et la région d'extrémité distale 12 du manche 5.Key 1 of FIG. 5 differs from that of FIGS. 1 to 4 in that that the head 4 and the handle 5 are no longer separated but connected by a blade longitudinal 26 material coming with the soul 7 of the head 4 and the region distal end 12 of the handle 5.

Cette lame 26 peut se déformer, par exemple en flexion, de sorte qu'elle forme entre la tête 4 et le manche 5 une liaison souple permettant à ce dernier de pivoter par rapport à la tête 4 pour prendre les positions représentées sur les figures 2 et 3.This blade 26 can be deformed, for example in flexion, so that it form between the head 4 and the handle 5 a flexible connection allowing the latter to pivot relative to the head 4 to take the positions shown on the Figures 2 and 3.

Les régions d'extrémité proximale 9 de la tête 4 comprennent quatre bourrelets intérieurs 27 disposés par paire sur ces régions 9. Les bourrelets 27 d'une même région 9 sont espacés l'un de l'autre et font face aux bourrelets 27 de l'autre région 9. Ces bourrelets 27 forment reliefs d'appui du manche 5 sur les régions d'extrémité proximale 9 lorsque le manche 5 va prendre, par rapport à la tête 4, les positions des figures 2 et 3. On notera que dans la position de repos représentée sur la figure 5, les quatre bourrelets 27 sont pratiquement au contact du manche 5.The proximal end regions 9 of the head 4 comprise four inner beads 27 arranged in pairs on these regions 9. The beads 27 of the same region 9 are spaced from each other and face the beads 27 of the other region 9. These beads 27 form support reliefs of the handle 5 on the proximal end regions 9 when the handle 5 will take, relative to the head 4, the positions of Figures 2 and 3. Note that in the rest position represented in FIG. 5, the four beads 27 are practically at contact of the handle 5.

Dans une variante non représentée, la lame 26 peut être non pas venue de matière à la fois avec la tête 4 et le manche 5, mais fixée par soudure à la tête 4 et/ou au manche 5.In a variant not shown, the blade 26 may not have come of material both with the head 4 and the handle 5, but fixed by welding to the head 4 and / or handle 5.

Dans une variante non représentée, la lame 26 est remplacée par une pièce rapportée en élastomère, rendue solidaire à la fois de la tête 4 et du manche 5 par des moyens connus en soi (moyens mécaniques ou surmoulage par injection, par exemple). In a variant not shown, the blade 26 is replaced by a elastomer insert, made integral with both the head 4 and the sleeve 5 by means known per se (mechanical means or overmolding by injection, for example).

Selon la variante de la figure 6, la tête 4 comprend des reliefs d'appui du manche 5 contre les régions d'extrémité proximale 9 des branches 6, à savoir une paire de bourrelets 28 et une paire de pions 29. Ces reliefs font saillie depuis les branches 6 vers la région d'extrémité distale 12 du manche 5.According to the variant of FIG. 6, the head 4 comprises bearing reliefs of 5 against the proximal end regions 9 of the branches 6, namely a pair of beads 28 and a pair of pins 29. These reliefs protrude from the branches 6 to the distal end region 12 of the handle 5.

Les bourrelets 28, d'une part, et les pions 29, d'autre part, sont disposés en regard. Toutefois, selon d'autres variantes les bourrelets 28 et les pions 29 peuvent être disposés autrement.The beads 28, on the one hand, and the pins 29, on the other hand, are arranged opposite. However, according to other variants the beads 28 and the pawns 29 may be arranged otherwise.

Les bourrelets 28 sont venus de matière chacun avec la région d'extrémité proximale 9 d'une branche 6 et sont plus éloignés de l'âme centrale 7 que les pions 29.The beads 28 came from each material with the region proximal end 9 of a branch 6 and are further from the central core 7 that the pawns 29.

Les pions 29, de forme cylindrique, sont reçus chacun dans un évidement 30 ménagé dans la région d'extrémité proximale 9 d'une branche 6.The pins 29, of cylindrical shape, are each received in a recess 30 formed in the proximal end region 9 of a branch 6.

La tête 4 porte deux paires d'évidements 30 qui peuvent recevoir les pions 29 et qui sont espacées le long de l'axe X-X.The head 4 carries two pairs of recesses 30 which can receive the pins 29 and spaced along the X-X axis.

Ainsi, l'espacement selon l'axe X-X entre les pions 29 et les bourrelets 28 peut être modifié.Thus, the spacing along the X-X axis between the pins 29 and the beads 28 can be changed.

Les bourrelets 28 et les pions 29 définissent les points d'appui du manche 5 sur la tête 4 pour qu'il remplisse son rôle de levier. Il est alors possible de régler, par modification de la position des pions 29, l'intensité de la tendance au rapprochement des surfaces 10 induite par un effort d'entraínement en rotation d'un écrou 2 appliqué sur le manche 5.The beads 28 and the pins 29 define the points of support of the handle 5 on the head 4 so that it fulfills its role of lever. It is then possible to adjust, by changing the position of the counters 29, the intensity of the trend to the approximation of surfaces 10 induced by a training effort in rotation of a nut 2 applied to the handle 5.

Ainsi, plus l'espacement entre les bourrelet 28 et le pion 29 sur lesquels le manche 5 s'appuie est faible, plus cette tendance sera forte.Thus, the more the spacing between the bead 28 and the pawn 29 on which the handle 5 is weak, the stronger this trend will be.

La figure 7 illustre un autre outil 1 selon l'invention qui se distingue de la clé des figures 1 à 4 par le fait que le manche a été remplacé par un organe de manoeuvre 5 de forme en T et qui comprend ainsi une barre 32 de transmission de couple prolongée par une poignée 33.FIG. 7 illustrates another tool 1 according to the invention that differs from the key in FIGS. 1 to 4 in that the handle has been replaced by an 5 T-shaped maneuver and which thus comprises a transmission bar 32 prolonged torque by a handle 33.

La région d'extrémité distale 34 de l'organe de manoeuvre 5 est reçue à faible jeu entre les régions d'extrémité proximale 9 des branches 6. Comme dans le cas de la figure 5, les régions d'extrémité proximale de la tête 4 présentent quatre bourrelets 27 d'appui de la région 34 de l'organe de manoeuvre 5 sur la tête 4. The distal end region 34 of the actuator 5 is received at weak clearance between the proximal end regions 9 of the branches 6. As in In the case of FIG. 5, the proximal end regions of the head 4 present four beads 27 of support of the region 34 of the actuating member 5 on the head 4.

Cette région 34 a une section rectangulaire et est munie d'un alésage transversal 36.This region 34 has a rectangular section and is provided with a bore transversal 36.

Une goupille transversale 37 traverse les deux branches 6 et l'alésage 36.A transverse pin 37 passes through the two branches 6 and the bore 36.

Cette goupille 37 relie l'organe de manoeuvre 5 et la tête 4 en permettant d'orienter l'organe de manoeuvre 5 par rapport à la tête 4, par rotation autour de l'axe de la goupille 37.This pin 37 connects the operating member 5 and the head 4 in for orienting the operating member 5 relative to the head 4, by rotation about the axis of the pin 37.

Ainsi, la barre 32 peut être située hors du plan de la tête 4, par exemple inclinée ou perpendiculaire à ce plan comme représenté sur la figure 7.Thus, the bar 32 may be located off the plane of the head 4, for example inclined or perpendicular to this plane as shown in Figure 7.

Cette possibilité d'orientation permet de s'adapter à des conditions d'utilisation variées, par exemple pour visser des écrous difficilement accessibles.This possibility of orientation makes it possible to adapt to conditions various applications, for example to screw nuts with difficulty accessible.

L'utilisateur adapte alors l'effort qu'il exerce pour obtenir, dans tous les cas, un couple d'entraínement en rotation sur l'organe de vissage.The user then adapts the effort he exerts to obtain, in all case, a torque rotational drive on the screw member.

Par ailleurs, le jeu entre l'alésage 36 et la goupille 37 est suffisamment important pour, lorsque dans la position de la figure 7 on applique à la poignée 33 un couple d'entraínement en rotation d'un écrou, permettre la rotation de la barre 32 autour de son axe longitudinal par rapport à la tête 4. La région 34 de la barre 32 prend alors appui sur les bourrelets 27 et tend ainsi à écarter par effet de came les régions 9 des branches 6 pour tendre à rapprocher les surfaces de prise 10 comme précédemment.Moreover, the clearance between the bore 36 and the pin 37 is sufficiently important for, when in the position of Figure 7 is applied to the handle 33 a torque drive in rotation of a nut, allow the rotation of the bar 32 about its longitudinal axis relative to the head 4. The region 34 of the bar 32 then bears on the beads 27 and thus tends to spread by effect cam regions 9 branches 6 to tend to bring the surfaces of taken 10 as before.

Dans une variante, la goupille 37 est amovible pour permettre de séparer la tête 4 et l'organe 5, et donc de relier des têtes 4 de tailles et de formes différentes à l'organe de manoeuvre 5.In a variant, the pin 37 is removable to allow separation the head 4 and the body 5, and thus to connect heads 4 of sizes and shapes different to the actuator 5.

Dans un autre mode de réalisation représenté sur la figure 8, le manche 5 de la clé des figures 1 à 4 a été remplacé par l'embout de sortie 40 d'une clé dynamométrique 41.In another embodiment shown in FIG. 8, the handle 5 of the key of FIGS. 1 to 4 has been replaced by the outlet end 40 of a key Dynamometric 41.

Bien que la description ci-dessus soit adaptée à une clé plate à fourche, l'invention peut être appliquée à d'autres types d'outils.Although the description above is adapted to a flat open-end wrench, the invention can be applied to other types of tools.

Claims (13)

  1. Tool (1) for driving a screwing component (2) in rotation, in particular a hand tool, of the type comprising a head (4) having at least two gripping surfaces (10) for driving the screwing component by at least partial complementarity of shape, and means (5; 41) for driving the head in rotation, said head (4) behaving, as a whole, like a solid piece when a screwing component is driven in rotation, said head comprising a region (7) for linking the gripping surfaces, and parts (9) for transmitting, to said gripping surfaces, a rotational stress applied to the driving means, the linking region (7) being situated between the stress-transmitting parts (9) and the gripping surfaces (10), characterised in that the head (4) is adapted so that the action of the rotational driving means on the stress-transmitting parts (9) tends to deform the geometry of the head elastically so as to bring the gripping surfaces (10) closer one another when a stress for driving a screwing component (2) in rotation is applied via driving means (5; 41).
  2. Tool according to claim 1, characterised in that the means for driving the head in rotation comprise a component (5; 41) for manoeuvring the head (4).
  3. Tool according to claim 2, characterised in that the component (5; 41) for manoeuvring the head (4) is movable in relation to said head so as to tend to bring the gripping surfaces (10) closer to one another, by a lever effect or cam effect on the stress-transmitting parts (9), when a stress for driving a screwing component (2) in rotation is applied to the manoeuvring component (5; 41).
  4. Tool according to claim 3, characterised in that the head (4) has a generally H-shaped configuration and comprises two arms (6) connected by a central core (7), a distal region (8) of each arm having one of the gripping surfaces (10) and the proximal regions (9) of the arms forming the said stress-transmitting parts; in that the two arms (6) are movable in relation to one another by deformation of the central core (8) so as to bring the gripping surfaces (10) closer to one another by the moving-apart of proximal regions (9) of the arms (6); and in that a distal region (12, 34) of the manoeuvring component (5; 41) is disposed between the proximal regions (9) of the arms so as to move them apart, by a lever effect or cam effect, when a stress for driving a screwing component (2) in rotation is applied to said manoeuvring component (5; 41).
  5. Tool according to any of claims 2 to 4, characterised in that the manoeuvring component (5; 41) is connected to the head by a flexible link (26).
  6. Tool according to claim 5, characterised in that the flexible link comprises a part (26) which is deformable and in one piece with the head (4) and the manoeuvring component (5; 41).
  7. Tool according to any of claims 1 to 5, characterised in that the manoeuvring component (5; 41) and the head (4) are separate or separable.
  8. Tool according to claim 7, characterised in that it comprises detachable means (37) for linking the head (4) and the manoeuvring component (5).
  9. Tool according to any of claims 2 to 4, 7 and 8, characterised in that the manoeuvring component (5; 41) is adjustable in relation to the head (4).
  10. Tool according to any of the preceding claims, characterised in that the manoeuvring component forms part of a dynamometric tool (41).
  11. Tool according to any of the preceding claims, characterised in that it comprises means (29, 30) for regulating the tendency of the head (4) to deform under the said action of the rotational driving means (5; 41).
  12. Tool according to any of the preceding claims, characterised in that the head comprises two open jaws (8) which each have at least one of the gripping surfaces (10).
  13. Tool according to claims 5 and 12 taken in combination, characterised in that the flexible link is made of elastomer.
EP00960781A 1999-09-28 2000-09-01 Rotational driving tool for screwing member Expired - Lifetime EP1216120B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR9912086A FR2798876B3 (en) 1999-09-28 1999-09-28 ROTATION DRIVE TOOL FOR A TIGHTENING MEMBER
FR9912086 1999-09-28
PCT/FR2000/002427 WO2001023145A1 (en) 1999-09-28 2000-09-01 Rotational driving tool for screwing member

Publications (2)

Publication Number Publication Date
EP1216120A1 EP1216120A1 (en) 2002-06-26
EP1216120B1 true EP1216120B1 (en) 2005-03-30

Family

ID=9550322

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00960781A Expired - Lifetime EP1216120B1 (en) 1999-09-28 2000-09-01 Rotational driving tool for screwing member

Country Status (7)

Country Link
US (1) US6557441B1 (en)
EP (1) EP1216120B1 (en)
AT (1) ATE291991T1 (en)
AU (1) AU7297000A (en)
DE (1) DE60019140T2 (en)
FR (1) FR2798876B3 (en)
WO (1) WO2001023145A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2952179B1 (en) * 2009-10-30 2012-06-01 Peugeot Citroen Automobiles Sa TOOLING FOR MEASURING THE GAME OF THE DIFFERENT BALLS PRESENTED ON A VEHICLE TRAIN, AND A METHOD OF CONTROLLING THE SET OF BALLS USING SUCH TOOLS
US9259825B2 (en) * 2013-02-06 2016-02-16 Grace Engineering Corp. Torque wrench for archery broadheads and fasteners
US9347162B1 (en) * 2013-11-21 2016-05-24 Ronald R. Pitts Fabric seam alignment tool
DE102020106888A1 (en) * 2020-03-13 2021-09-16 Grohe Ag Tool for actuating an adjusting element of a sanitary fitting

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1218576A (en) * 1916-05-06 1917-03-06 Howard W Hall Pipe-wrench.
US1361923A (en) 1920-03-05 1920-12-14 William M Stovall Wrench
US1619744A (en) * 1921-03-28 1927-03-01 Paul J Mccloskey Mechanic's fishing tool
FR592653A (en) 1924-11-17 1925-08-06 Pedal wrench
CH136845A (en) 1928-02-07 1929-11-30 Emil Klingler Johann Wrench.
GB618203A (en) 1945-11-02 1949-02-17 George Thomas Logan Improvements in wrench construction
US2594154A (en) 1950-03-22 1952-04-22 John J Greer Wrench having pivotable jaws cammed by pivoting handle
US2886998A (en) * 1957-07-12 1959-05-19 George W Scott Joint for an angularly adjustable wrench head
GB8812527D0 (en) 1988-05-26 1988-06-29 Bantex Ltd Improvements in & relating to fitting of aerials
US5464421A (en) * 1991-06-14 1995-11-07 Surgin Surgical Instrumentation, Inc. Hemorrhage occluder, applicator and method
US5365809A (en) * 1993-11-05 1994-11-22 Hsiao Chia Yuan Adjustable spanner
US5699701A (en) * 1996-05-07 1997-12-23 Cotten, Jr.; David L. Tool for removing vehicle gas tank cap

Also Published As

Publication number Publication date
DE60019140T2 (en) 2006-02-09
ATE291991T1 (en) 2005-04-15
EP1216120A1 (en) 2002-06-26
FR2798876A1 (en) 2001-03-30
AU7297000A (en) 2001-04-30
FR2798876B3 (en) 2001-12-14
DE60019140D1 (en) 2005-05-04
US6557441B1 (en) 2003-05-06
WO2001023145A1 (en) 2001-04-05

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