WO1995031312A1 - Open-end wrench with alternating rotation control - Google Patents

Open-end wrench with alternating rotation control Download PDF

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Publication number
WO1995031312A1
WO1995031312A1 PCT/FR1995/000637 FR9500637W WO9531312A1 WO 1995031312 A1 WO1995031312 A1 WO 1995031312A1 FR 9500637 W FR9500637 W FR 9500637W WO 9531312 A1 WO9531312 A1 WO 9531312A1
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WO
WIPO (PCT)
Prior art keywords
housing
branch
jaw
roller
fork
Prior art date
Application number
PCT/FR1995/000637
Other languages
French (fr)
Inventor
Serge Simplet
Bernard Lemaitre
Original Assignee
Serge Simplet
Bernard Lemaitre
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Serge Simplet, Bernard Lemaitre filed Critical Serge Simplet
Priority to AU26191/95A priority Critical patent/AU2619195A/en
Priority to JP7529421A priority patent/JPH10500069A/en
Priority to EP95920945A priority patent/EP0759835A1/en
Publication of WO1995031312A1 publication Critical patent/WO1995031312A1/en

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Classifications

    • 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
    • B25B13/46—Spanners; Wrenches of the ratchet type, for providing a free return stroke of the handle

Definitions

  • the subject of the present invention is a flat wrench with alternative rotation control, without having to separate the fork from the flat wrench from the nut to be screwed or unscrewed.
  • the state of the art includes such documents.
  • Document FR- ⁇ -2. 675. 728 relates to a ratchet-controlled wrench comprising a longitudinal gripping body terminated at one end by a sleeve for receiving a socket, capable of ensuring the screwing or unscrewing of a nut, bolt or screw head with which it is capable of cooperating, characterized in that it comprises a ratchet mechanism formed in the longitudinal body and one end of which opens into said sleeve to cooperate with radial grooves formed peripherally on a portion of said sleeve.
  • Document WO- ⁇ -8.905.213 relates to a ratchet which comprises a jaw chuck provided with clamping teeth on a part of its circumference and rotatably mounted in a jaw head of a lever, the clamping teeth snapping into place with intermediate pieces arranged in the head.
  • the transmission of forces when the mandrel is rotated in the head is ensured despite the presence of intermediate parts arranged in the jaws.
  • the intermediate parts are in the form of ratchet levers biased by springs and distributed in a predetermined manner, at regular intervals, around the clamping teeth distributed over the remaining outer circumference of the mandrel.
  • the jaws of the mandrel have in the area adjacent to the part of their circumference which carries the clamping teeth, on the anterior side of the mandrel, seen in the direction of free travel, a face radial with respect to said part of their circumference. Additional mechanical drive elements act on the mandrel itself.
  • Document EP-A-0.314.106 proposes a ratchet key provided with a nut having a jaw and pivoting in one direction, by means of a snap, in a key head in the form of a jaw; the key comprises a pair of movable elements which engage in two zones spaced from a swivel crown of the nut, carrying the vacuum of the jaw and which produces, against the blocking action of 1 'snap, a rotation of the nut while moving.
  • the engagement elements and the relative crown are preferably presented as pawls and snap teeth or as gears. This facilitates the rotation of the nut, necessary for the removal of the key from the bolts, the end of the threads of which is not free, until the jaws of the nut and of the key head coincide and the tool can be removed radially.
  • the first document is representative of the most current state of the art. These are socket wrenches that are high and cannot work in tight spaces, i.e., for example, the distance between the head of the screw, the nut, etc. where the sleeve must be fitted, on the one hand, and the neighboring parts located in the extension of the longitudinal axis of said screw, on the other hand, is too weak for the socket wrench to be able to be positioned.
  • Document US-A-3,906,822 relates to a key in which one of the embodiments has a large number of balls or rollers with around each roller and between two adjacent rollers of the workpiece carriers.
  • the set of rollers may or may not dodge in gradients by means of a single cantilever spring. It is a question here, no more no less, of transposing the principle of the freewheel to a key.
  • the mobile elements are present over the entire "active" surface of the key, which is essentially circular in shape. This system is therefore very complex and quite fragile.
  • Document US-A-2. 730,000 offers an open-end wrench containing balls where each branch of the fork has a single ball.
  • the housings containing the balls do not have an oblique position, there is no bracing but immobilization by obstacle. It follows that, during the screwing or unscrewing, the resumption of the nut takes place after a rotation of 60 ' , which is a very large clearance not always available.
  • document GB-A-786.227 discloses that one of the branches of the fork constituting the flat key has two movable rollers housed in two longitudinal housings. There are bracing rollers to allow screwing or unscrewing. Finally, there is an action of a spring on each roller in order to allow its longitudinal displacement in the housing with return to position.
  • this key is very fragile.
  • the other branch has a movable cam plate relative to an axis and returned to position by a spring. It is therefore easy to understand that all the effort exerted on this other branch will be collected by this single axis.
  • the use of a floating head increases the thickness of the handle and the cost of the key.
  • the principle of the invention is simpler, less expensive, more efficient and less bulky.
  • Several embodiments are possible which are all based on the principle of the bracing of a roller or roller present in the body of the fork, which allows the locking in position of the nut to be screwed or unscrewed by with respect to said fork of the Flat Key.
  • the subject of the present invention is a flat key with alternating and manual rotation control operating with an angular movement, of the type comprising a handle. longitudinal provided, at at least one of its ends, with a fork intended to screw and / or unscrew a threaded object such as a nut, a bolt, a screw, a tube or others, each fork is formed of two branches which constitute a jaw, one of the branches of which comprises two movable rollers housed in two housings made in the body of the fork, each housing is provided with an opening opening at the jaw, the tightening torque is obtained by 1 action of each movable roller which is blocked due to the bracing obtained between the outer surface of the threaded object, the faces of said housing and the legs of the fork, each movable roller is kept in contact with the outer surface of the object by a spring, the longitudinal displacement of the movable roller takes place along the longitudinal axis of the housing and is ensured by the actuation of the key during its angular movement
  • the branch located opposite the branch, where the rollers are located, has two bosses which facilitate the bracing of the threaded object.
  • the branch, located opposite the branch, where the movable rollers are located comprises two rollers which facilitate the bracing of the threaded object, each roller being movable in rotation in its housing.
  • the branch located opposite the branch, where the rollers are located, comprises two movable rollers which facilitate the bracing of the threaded object, each roller being movable in rotation and longitudinally in its housing.
  • the invention also relates to a flat key where the axis longitudinal of each housing, located on a branch of the fork, is oblique to the edge of the jaw where the housing is located, and where the longitudinal axes of the two housings, located on one and the same branch of the fork, have a different obliquity with respect to the edge of the jaw where they are located, characterized in that the acute angle ( ⁇ ) between the longitudinal axis of one of the housings and the edge of the jaw, where the housing is located , is between 12 and 20 " for the roller of one of the branches, furthest from the bottom of said jaw, and for the roller of the other branch, closest to the bottom of the jaw, and that the angle acute ( ⁇ ) between the longitudinal axis of one of the housings and the edge of the jaw, where the housing is located, is between 42 and 50 " for the roller of one of the branches, closest to the bottom of said jaw, and for the roller of the other branch, the most elo igneous from the bottom of the jaw, depending
  • each housing furthest from the bottom of the jaw of one of the legs of the fork is parallel to the longitudinal axis of the housing closest to the bottom of the jaw, located on the other branch of said fork.
  • Each movable roller is provided with guide means which cooperate with the body of the fork to guide its movement inside the housing.
  • the spacing of the legs of the fork is adjustable by means of an adjustment device of the adjustable wrench type.
  • each movable roller is provided with ridges on all or part of its faces in contact with the nut and the faces of the housing in which it is installed, so as to increase the contact surface during the bracing.
  • the means for returning the movable rollers to their position consists of a helical spring for each roller.
  • the means for returning the movable rollers to their position consists of an elastomer for each roller.
  • the recall means in position of the movable rollers is constituted by at least one leaf spring per fork.
  • FIG. 1 represents a view in longitudinal section in the plane, of an embodiment of a fork of a flat key according to the invention, in which one of the branches has two bosses and the other contains two movable rollers in rotation and translation.
  • FIG. 2 represents a view in longitudinal section in the plane, of an embodiment of a fork of a flat key according to the invention, in which one of the branches contains two rollers movable in rotation and the other contains two rollers movable in rotation and in translation.
  • FIG. 3 represents a view in longitudinal section in the plane, of an embodiment of a fork of a flat key according to the invention, in which each branch contains two rollers movable in rotation and in translation.
  • Figure 4 shows a perspective view of the embodiment of Figure 3, during assembly of the flat key.
  • FIG. 5 represents a view in longitudinal section in the plane, according to FIG. 3 of the invention, in which the two movable rollers of the same branch cooperate with the same side of a nut to be screwed or unscrewed.
  • FIG. 6 represents a view in longitudinal section in the plane, according to FIG. 3 of the invention, in which the two movable rollers of the same branch cooperate with two adjacent sides of a nut to be screwed or unscrewed.
  • FIG. 7 represents a view in longitudinal section in the plane formed by the key, in which the return to position is ensured by a leaf spring for each pair of rollers of a single branch of said key.
  • FIG. 8 represents a view in longitudinal section in the plane formed by the key, in which the return to position is ensured by an elastomer element located in each longitudinal housing of a roller.
  • the present invention relates to a flat key with control of alternative rotation operating with angular travel.
  • This flat key comprises a longitudinal handle not shown in the figures which is provided at at least one of its ends with a fork referenced 1 whatever the embodiment shown in the figures.
  • This fork will allow to screw and / or unscrew a threaded object such as a nut 7, as we will see in Figures 5 and 6, but also a bolt, a screw, a tube or other means of fixing the public domain .
  • Each fork 1 is conventionally formed of two branches 2 and 3 as can be seen in FIG. 1, the fork 1 constituting a jaw.
  • one of the branches 4 comprises two movable rollers 6 which are housed in two housings 8 and 9 formed in the body of the fork 1.
  • Each housing 8 or 9 is provided with an opening 10 or 11 which opens at the jaw, that is to say at the edge of the branch 4.
  • the torque will be obtained by one action of the mobile roll 6 will be blocked by jamming 'between, firstly, the folds of the nut 7 which will be set up in order to be screwed or unscrewed, then, the faces of the housing 8 or 9 where the movable roller 6 is located and finally, the branch of the fork 1 situated opposite the branch 4.
  • the roller 6 is movable between two positions inside its housing 8 or 9.
  • a first so-called retracted position is made against a spring 12, according to a first embodiment shown in FIGS. 1 to 6, present inside the body of the fork 1.
  • the means for returning the rollers 6 to the deployed position can be constituted either by a leaf spring 19, or by an elastomer 23 wedged in the longitudinal housing 8 or 9 against said roller 6.
  • a leaf spring 19 it is 8 possible to have one spring per roller 6, one spring for two rollers 6 of the same branch 4 or one spring for four rollers
  • This contact point is generally formed by the guide means 13.
  • the roller 6 can perform another movement, which is a rotational movement on itself since the latter has an axis acting as guide means 13.
  • the guide means 13 can be present on one side of the rollers 6, or on the two faces which constitute said rollers 6. Each of these guide means 13 corresponds to a slide
  • bracing allows the nut to be tightened or loosened
  • each movable roller is possible because the force exerted by the flange (s) of the nut 7 on the interior faces of the housing 8 or 9, where the braced roller 6 is located, is substantially perpendicular to these interior faces of said housing 8 or 9. In the case of the retraction of the roller 6, this force is substantially parallel to said interior faces of the housing 8 or 9. As can be seen more clearly in FIG. 4, each movable roller
  • These guide means 13 are located inside slides 22 present on at least one of the two back 16 or front 17 plates forming the fork 1, the intermediate plate 18 receiving the main body of the roller 6.
  • the general shape of the housings 8 or 9 is therefore substantially oblong, this shape is due to the intermediate plate 18 while the front 17 and dorsal 16 plates laterally delimit each housing 8 or 9.
  • Two intermediate and lateral plates could also form a single intermediate and lateral plate, not shown in the figures.
  • the guide means 13 can therefore be present on only one of the sides of the roller 6, whether at the level of the front plate 17 or of the back plate 16, but they can just as easily be present on the two plates 16 and 17 When, as shown in FIG.
  • a branch 4 comprises two movable rollers 6, housed in two housings 8 and 9, the longitudinal axes of the two housings 8 and 9, which are therefore located on a single branch 4 of the fork 1, have an obliquity which is different from the edges of the jaw where they are located.
  • the acute angle ⁇ is between the longitudinal axis of the housing 8, having an opening 10, and the edge of the jaw where the housing 8 is located.
  • This angle ⁇ is between 12 and 20 * depending on the nature of the materials which constitute the flat key.
  • the acute angle ⁇ is, for its part, between the longitudinal angle of the housing 9 and the edge of the jaw where the housing 9 is located and is between 42 and 50 " , always depending on the nature of the materials which constitute the Flat key.
  • the branch 4 comprises two movable rollers 6, located opposite a branch 5, where the movable rollers are not present but are physically replaced by two bosses 14, representing the deployed form of the rollers 6 when these are present.
  • bosses 14 will therefore allow good retention of the nut 7 in position even if the movable rollers 6 are absent on this branch 5. It will suffice simply to ensure that the travel of the movable rollers 6 present on the branch 4 is sufficient to allow the nut 7 to rotate freely, when the flat key is automatically returned around said nut 7.
  • the branch 5 is replaced by a branch 3 because the bosses are simply replaced by rollers 15, which have the possibility of moving inside their housing 20, but this mobility is limited to a simple rotation.
  • This mobility is made possible due to the presence of a rotation axis 21, which will require the presence of a bore or blind hole at the level of the back plates 16 and / or front 17, but this is not shown. in the figures.
  • rollers 15, just like the bosses 14, will allow the nut 7 to be well maintained, which one will want to screw or unscrew, but will also make it possible to facilitate the return to the position of the flat key during its angular movement.
  • FIGS. 3 to 8 The preferred embodiment is shown in FIGS. 3 to 8.
  • This embodiment has a fork 1 having two identical branches 4 which are distinguished only by the position of the housings 8 and 9 of each branch 4.
  • the acute angle ⁇ between the longitudinal axis of one 8 of the housings 8 and 9 and the edge of the jaw where the ' housing 8 is located, is between 12 and 20 "for the roller 6 d 'one of the branches 4 furthest from the bottom of said jaw, as well as for the roller 6 of the other jaw 4 closest to the bottom of the jaw'.
  • the acute angle ⁇ in the same way is between the longitudinal axis of one of the housings 8 and 9 and the edge of the jaw where the housing 9 is located.
  • This acute angle ⁇ is between 42 and 50 " for the roller 6 of one of the branches 4 closest to the bottom of said jaw, as well as for the roller 6 of the other branch 4 furthest from the bottom of the jaw.
  • each housing 8 or 9 furthest from the bottom of the jaw of one of the legs 4 of the fork 1 is parallel to the longitudinal axis of the housing 8 or 9 closest to the bottom of the jaw located on the other branch 4 of said fork 1.
  • the minimum angular clearance of the flat key allowing a return, during the screwing or unscrewing of the nut 7, of hexagonal shape will be 30 * since the bracing can be done on each of the hexagon of said nut 7, see FIG. 5, as well as at the level of each of the edges forming the interface between two adjacent panels of the same nut 7.
  • the angular clearance will of course be much lower.
  • the spacing of the branches 3, 4 and / or 5 of the fork 1 can be adjusted by means of an adjustment device of the adjustable wrench type.
  • each movable roller 6 is provided with ridges on all or part of its faces in contact with the nut 7 and / or with the faces of said housing 8 or
  • the housings 8, 9 or 20 do not allow the bracing but simply the correct guiding of the sides of the nut 7 when handling the flat wrench with rotation control alternative.

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

Abstract

Open-end wrench with alternating rotation control operating at angular displacement, of the type comprising a longitudinal handle having, at least at one of its ends, a jaw element (1) for screwing or unscrewing a nut (7), each jaw element (1) consisting of two sections (4) forming a jaw. At least one of said sections (4) includes at least one movable roller (6) inserted in at least one housing (9 or 9) in the jaw element body (1). Said housing (8 or 9) is provided with an aperture (10 or 11) opening onto the jaw, the gripping torque resulting from the action of at least one movable roller (6) which is locked by the engagement of the flats of the nut (7) with the faces of said housing (8 or 9) and the sections (4) of the jaw element (1). Said movable roller (6) moves in its housing (8 or 9) between a retracted position therein and an engagement position with the nut (7), and is either free to be rotated or translated or locked through said engagement. The wrench of the invention is preferably useful for driving a tool requiring an alternating rotary motion.

Description

"Clé plate à commande de rotation alternative" "Open wrench with alternative rotation control"
La présente invention a pour objet une clé plate à commande de rotation alternative, sans avoir à désolidariser la fourche de la clé plate de l'écrou à visser ou à dévisser. L'état de la technique comprend de tels documents.The subject of the present invention is a flat wrench with alternative rotation control, without having to separate the fork from the flat wrench from the nut to be screwed or unscrewed. The state of the art includes such documents.
Le document FR-Α-2. 675. 728 concerne une clé à commande de rotation par cliquets comportant un corps longitudinal de préhension terminé à une extrémité par un fourreau de réception d ' une douille, apte à assurer le vissage ou le dévissage d ' un écrou, boulon ou tête de vis avec lequel elle est susceptible de coopérer, caractérisé en ce qu 'il comporte un mécanisme à cliquets ménagé dans le corps longitudinal et dont une extrémité débouche dans ledit fourreau pour coopérer avec des cannelures radiales ménagées périphériquement sur une portion de ladite douille. Le document WO-Α-8.905.213 a trait à une clé à cliquet qui comprend un mandrin à mors pourvu de dents de serrage sur une partie de sa circonférence et rotativement monté dans une tête à mâchoires d ' un levier, les dents de serrage s ' encliquetant avec des pièces intermédiaires agencées dans la tête. La transmission de forces lors de la mise en rotation du mandrin dans la tête est assurée malgré la présence de pièces intermédiaires agencées dans les mâchoires. Les pièces intermédiaires ont la forme de leviers à cliquets sollicités par des ressorts et distribués de manière prédéterminée, à des écarts réguliers, autour des dents de serrage distribuées sur la circonférence extérieure restante du mandrin. Les mors du mandrin présentent dans la zone adjacente à la partie de leur circonférence qui porte les dents de serrage, du côté antérieur du mandrin, vu dans le sens de la course libre, une face radiale par rapport à ladite partie de leur circonférence. Des éléments mécaniques supplémentaires d ' entraînement agissent sur le mandrin proprement dit .Document FR-Α-2. 675. 728 relates to a ratchet-controlled wrench comprising a longitudinal gripping body terminated at one end by a sleeve for receiving a socket, capable of ensuring the screwing or unscrewing of a nut, bolt or screw head with which it is capable of cooperating, characterized in that it comprises a ratchet mechanism formed in the longitudinal body and one end of which opens into said sleeve to cooperate with radial grooves formed peripherally on a portion of said sleeve. Document WO-Α-8.905.213 relates to a ratchet which comprises a jaw chuck provided with clamping teeth on a part of its circumference and rotatably mounted in a jaw head of a lever, the clamping teeth snapping into place with intermediate pieces arranged in the head. The transmission of forces when the mandrel is rotated in the head is ensured despite the presence of intermediate parts arranged in the jaws. The intermediate parts are in the form of ratchet levers biased by springs and distributed in a predetermined manner, at regular intervals, around the clamping teeth distributed over the remaining outer circumference of the mandrel. The jaws of the mandrel have in the area adjacent to the part of their circumference which carries the clamping teeth, on the anterior side of the mandrel, seen in the direction of free travel, a face radial with respect to said part of their circumference. Additional mechanical drive elements act on the mandrel itself.
Le document EP-A-0.314.106 propose une clé à cliquets munie d ' une noix présentant une mâchoire et pivotant dans un seul sens , grâce à un encliquetage , dans une tête de clé en forme de mâchoire ; la clé comporte une paire d ' éléments mobile qui s ' engagent dans deux zones écartées d ' une couronne de pivotement de la noix, en portant le vide de la mâchoire et qui produit, à 1 ' encontre de l ' action de blocage de 1 ' encliquetage , une rotation de la noix en se déplaçant . Les éléments d ' engagement et la couronne relative se présentent , de préférence comme des cliquets et une denture d ' encliquetage ou comme des engrenages . Ceci facilite la rotation de la noix, nécessaire au retrait de la clé des boulons dont l ' extrémité de filets n 'est pas libre, jusqu ' à ce que les mâchoires de la noix et de la tête de clé coïncident et que 1 'outil puisse être retiré radialement.Document EP-A-0.314.106 proposes a ratchet key provided with a nut having a jaw and pivoting in one direction, by means of a snap, in a key head in the form of a jaw; the key comprises a pair of movable elements which engage in two zones spaced from a swivel crown of the nut, carrying the vacuum of the jaw and which produces, against the blocking action of 1 'snap, a rotation of the nut while moving. The engagement elements and the relative crown are preferably presented as pawls and snap teeth or as gears. This facilitates the rotation of the nut, necessary for the removal of the key from the bolts, the end of the threads of which is not free, until the jaws of the nut and of the key head coincide and the tool can be removed radially.
Le premier document est représentatif de l'état de la technique le plus courant. Il s'agit de clés à douille qui sont hautes et ne peuvent pas fonctionner dans des espaces réduits, c'est-à-dire, par exemple, que la distance entre la tête de la vis, l'écrou, etc. où la douille doit être emmanchée, d'une part, et les pièces avoisinantes situées dans le prolongement de l'axe longitudinal de ladite vis, d'autre part, est trop faible pour que la clé à douille puisse être positionnée.The first document is representative of the most current state of the art. These are socket wrenches that are high and cannot work in tight spaces, i.e., for example, the distance between the head of the screw, the nut, etc. where the sleeve must be fitted, on the one hand, and the neighboring parts located in the extension of the longitudinal axis of said screw, on the other hand, is too weak for the socket wrench to be able to be positioned.
Les deux documents suivants concernent des clés que l'on pourrait qualifier de plate, bien qu'elles soient volumineuses et complexes. Néanmoins, elles utilisent des cliquets pour le retour automatique, de ce fait la mâchoire contenue dans ces clés pour pouvoir être désaccouplée de la vis, après vissage ou dévissage, doit avoir effectué un ou plusieurs tours complets. Si le ou les tours ne sont pas complets, le désaccouplement ne pourra se faire que dans le prolongement axial de la vis, comme c'est le cas pour les clés à douille. Quels que soient les modes de réalisation, le retour automatique en position de toutes ces clés se fait à l'aide de systèmes à cliquets.The following two documents relate to keys that could be described as flat, although they are bulky and complex. However, they use pawls for automatic return, therefore the jaw contained in these keys to be able to be uncoupled from the screw, after screwing or unscrewing, must have made one or more complete turns. If the revolution (s) are not complete, uncoupling can only be done as an axial extension of the screw, as is the case with socket wrenches. Whatever the embodiments, the automatic return to position of all these keys is done using ratchet systems.
Le document US-A-3.906.822 concerne une clé dont l ' un des modes de réalisation présente un nombre important de billes ou de rouleaux avec autour de chaque rouleau et entre deux rouleaux adjacents des porte-pièces. L ' ensemble des rouleaux peut s ' esquiver ou non dans des déclivités par l 'intermédiaire d ' un unique ressort cantilever. II s'agit ici, ni plus ni moins, de transposer le principe de la roue libre à une clé. Les éléments mobiles sont présents sur toute la surface "active" de la clé qui est de forme essentiellement circulaire. Ce système est donc très complexe et assez fragile. Le document US-A-2. 730.000 propose une clé à fourche contenant des billes où chaque branche de la fourche comporte une seule bille. Les logements contenant les billes n 'ont pas une position oblique, il n 'y a pas arc-boutement mais immobilisation par obstacle. II s'ensuit que, lors du vissage ou du dévissage, la reprise de l'écrou s'effectue après une rotation de 60', ce qui est un débattement très important pas toujours disponible.Document US-A-3,906,822 relates to a key in which one of the embodiments has a large number of balls or rollers with around each roller and between two adjacent rollers of the workpiece carriers. The set of rollers may or may not dodge in gradients by means of a single cantilever spring. It is a question here, no more no less, of transposing the principle of the freewheel to a key. The mobile elements are present over the entire "active" surface of the key, which is essentially circular in shape. This system is therefore very complex and quite fragile. Document US-A-2. 730,000 offers an open-end wrench containing balls where each branch of the fork has a single ball. The housings containing the balls do not have an oblique position, there is no bracing but immobilization by obstacle. It follows that, during the screwing or unscrewing, the resumption of the nut takes place after a rotation of 60 ' , which is a very large clearance not always available.
Enfin, le document GB-A-786.227 divulgue que l ' une des branches de la fourche constituant la clé plate, présente deux rouleaux mobiles logés dans deux logements longitudinaux. Il y a arc-boutement des rouleaux pour permettre le vissage ou le dévissage. Enfin, il y a une action d ' un ressort sur chaque rouleau afin de permettre son déplacement longitudinal dans le logement avec rappel en position. Néanmoins, cette clé est très fragile. L'autre branche comporte un plateau-came mobile par rapport à un axe et rappelée en position par un ressort. Il est donc aisé de comprendre que tout l'effort, exercé sur cette autre branche, sera encaissé par ce seul axe. De plus, l'utilisation d'une tête flottant augmente l'épaisseur du manche et le coût de la clé.Finally, document GB-A-786.227 discloses that one of the branches of the fork constituting the flat key has two movable rollers housed in two longitudinal housings. There are bracing rollers to allow screwing or unscrewing. Finally, there is an action of a spring on each roller in order to allow its longitudinal displacement in the housing with return to position. However, this key is very fragile. The other branch has a movable cam plate relative to an axis and returned to position by a spring. It is therefore easy to understand that all the effort exerted on this other branch will be collected by this single axis. In addition, the use of a floating head increases the thickness of the handle and the cost of the key.
Le principe de l'invention est plus simple, moins onéreux plus performant et moins encombrant. Plusieurs modes de réalisation sont possibles qui se basent tous sur le principe de l'arc-boutement d'un rouleau ou galet présent dans le corps de la fourche, ce qui permet le blocage en position de l'écrou à visser ou à dévisser par rapport à ladite fourche de la Clé plate.The principle of the invention is simpler, less expensive, more efficient and less bulky. Several embodiments are possible which are all based on the principle of the bracing of a roller or roller present in the body of the fork, which allows the locking in position of the nut to be screwed or unscrewed by with respect to said fork of the Flat Key.
A cet effet, la présente invention a pour objet une clé plate à commande de rotation alternative et manuelle fonctionnant avec un débattement angulaire, du type comportant un manche longitudinal muni, à au moins une de ses extrémités, d'une fourche destinée à visser et/ou à dévisser un objet fileté tel qu'un écrou, un boulon, une vis, un tube ou autres, chaque fourche est formée de deux branches qui constituent une mâchoire, dont une des branches comporte deux rouleaux mobiles logés dans deux logements pratiqués dans le corps de la fourche, chaque logement est pourvu d'une ouverture débouchant au niveau de la mâchoire, le couple de serrage est obtenu par 1 'action de chaque rouleau mobile qui est bloqué du fait de l'arc-boutement obtenu entre la surface extérieure de l'objet fileté, les faces dudit logement et les branches de la fourche, chaque rouleau mobile est maintenu en contact avec la surface extérieure de l'objet par un ressort, le déplacement longitudinal du rouleau mobile s'effectue selon l'axe longitudinal du logement et est assuré par 1 ' actionnement de la clef lors de son débattement angulaire autour de la surface extérieure de l'objet, chaque rouleau mobile est déplacé dans son logement entre une position escamotée dans ledit logement et une position d'arc-boutement avec l'objet, chaque rouleau mobile est soit libre en rotation et en translation, soit bloqué du fait de l'arc-boutement, caractérisée par le fait que la branche, située en regard de la branche où sont "implantés les rouleaux mobiles, comporte des moyens de blocage coopérant avec lesdits rouleaux pour le vissage et/ou le dévissage de l'objet fileté, ladite branche, portant ces moyens de blocage, a une forme extérieure identique à la branche qui porte les rouleaux mobiles.To this end, the subject of the present invention is a flat key with alternating and manual rotation control operating with an angular movement, of the type comprising a handle. longitudinal provided, at at least one of its ends, with a fork intended to screw and / or unscrew a threaded object such as a nut, a bolt, a screw, a tube or others, each fork is formed of two branches which constitute a jaw, one of the branches of which comprises two movable rollers housed in two housings made in the body of the fork, each housing is provided with an opening opening at the jaw, the tightening torque is obtained by 1 action of each movable roller which is blocked due to the bracing obtained between the outer surface of the threaded object, the faces of said housing and the legs of the fork, each movable roller is kept in contact with the outer surface of the object by a spring, the longitudinal displacement of the movable roller takes place along the longitudinal axis of the housing and is ensured by the actuation of the key during its angular movement around the external surface of the object, each movable roller is moved in its housing between a retracted position in said housing and a bracing position with the object, each movable roller is either free in rotation and in translation, or blocked due to the 'bracing, characterized in that the branch, located opposite the branch where the " movable rollers " are located, comprises blocking means cooperating with said rollers for screwing and / or unscrewing the threaded object, said branch, carrying these locking means, has an external shape identical to the branch which carries the movable rollers.
Selon un premier mode de réalisation, la branche, située en regard de la branche, où sont implantés les rouleaux, comporte deux bossages qui facilitent l'arc-boutement de l'objet fileté. Selon un deuxième mode de réalisation, la branche, située en regard de la branche, où sont implantés les rouleaux mobiles,comporte deux galets qui facilitent l'arc-boutement de l'objet fileté, chaque galet étant mobile en rotation dans son logement.According to a first embodiment, the branch, located opposite the branch, where the rollers are located, has two bosses which facilitate the bracing of the threaded object. According to a second embodiment, the branch, located opposite the branch, where the movable rollers are located, comprises two rollers which facilitate the bracing of the threaded object, each roller being movable in rotation in its housing.
Selon un troisième mode de réalisation, la branche, située en regard de la branche, où sont implantés les rouleaux, comporte deux rouleaux mobiles qui facilitent l'arc-boutement de l'objet fileté, chaque rouleau étant mobile en rotation et longitudinalement dans son logement.According to a third embodiment, the branch, located opposite the branch, where the rollers are located, comprises two movable rollers which facilitate the bracing of the threaded object, each roller being movable in rotation and longitudinally in its housing.
L'invention concerne également une clé plate où l'axe longitudinal de chaque logement, situé sur une branche de la fourche, est oblique par rapport au bord de la mâchoire où le logement est implanté, et où les axes longitudinaux des deux logements, situés sur une seule et même branche de la fourche, ont une obliquité différente par rapport au bord de la mâchoire où ils sont implantés, caractérisée par le fait que l'angle aigu (α) compris entre l'axe longitudinal de 1 'un des logements et le bord de la mâchoire, où le logement est implanté, est compris entre 12 et 20" pour le rouleau d'une des branches, le plus éloigné du fond de ladite mâchoire, et pour le rouleau de l'autre branche, le plus proche du fond de la mâchoire, et que l'angle aigu (β) compris entre l'axe longitudinal de l'un des logements et le bord de la mâchoire, où le logement est implanté, est compris entre 42 et 50" pour le rouleau d'une des branches, le plus proche du fond de ladite mâchoire, et pour le rouleau de l'autre branche, le plus éloigné du fond de la mâchoire, selon la nature des matériaux qui constitue la clé plate.The invention also relates to a flat key where the axis longitudinal of each housing, located on a branch of the fork, is oblique to the edge of the jaw where the housing is located, and where the longitudinal axes of the two housings, located on one and the same branch of the fork, have a different obliquity with respect to the edge of the jaw where they are located, characterized in that the acute angle (α) between the longitudinal axis of one of the housings and the edge of the jaw, where the housing is located , is between 12 and 20 " for the roller of one of the branches, furthest from the bottom of said jaw, and for the roller of the other branch, closest to the bottom of the jaw, and that the angle acute (β) between the longitudinal axis of one of the housings and the edge of the jaw, where the housing is located, is between 42 and 50 " for the roller of one of the branches, closest to the bottom of said jaw, and for the roller of the other branch, the most elo igneous from the bottom of the jaw, depending on the nature of the materials that constitute the flat key.
L'axe longitudinal de chaque logement le plus éloigné du fond de la mâchoire d'une des branches de la fourche est parallèle par rapport à 1 'axe longitudinal du logement le plus proche du fond de la mâchoire, situé sur l'autre branche de ladite fourche.The longitudinal axis of each housing furthest from the bottom of the jaw of one of the legs of the fork is parallel to the longitudinal axis of the housing closest to the bottom of the jaw, located on the other branch of said fork.
Chaque rouleau mobile est pourvu de moyens de guidage qui coopèrent avec le corps de la fourche pour guider son déplacement à l'intérieur du logement. Selon un mode particulier de réalisation, l'écartement des branches de la fourche est réglable au moyen d'un dispositif de réglage du type clef à molette.Each movable roller is provided with guide means which cooperate with the body of the fork to guide its movement inside the housing. According to a particular embodiment, the spacing of the legs of the fork is adjustable by means of an adjustment device of the adjustable wrench type.
Selon un autre mode particulier de réalisation, chaque rouleau mobile est pourvu de stries sur tout ou partie de ses faces en contact avec 1 'écrou et les faces du logement où il est implanté et ce, de manière à augmenter la surface de contact lors de l'arc-boutement.According to another particular embodiment, each movable roller is provided with ridges on all or part of its faces in contact with the nut and the faces of the housing in which it is installed, so as to increase the contact surface during the bracing.
Selon un premier mode de réalisation, le moyen de rappel en position des rouleaux mobiles est constitué par un ressort hélicoïdal pour chaque rouleau.According to a first embodiment, the means for returning the movable rollers to their position consists of a helical spring for each roller.
Selon un deuxième mode de réalisation, le moyen de rappel en position des rouleaux mobiles est constitué par un élastomère pour chaque rouleau.According to a second embodiment, the means for returning the movable rollers to their position consists of an elastomer for each roller.
Sur un troisième mode de réalisation, le moyen de rappel en position des rouleaux mobiles est constitué par au moins un ressort à lame par fourche.In a third embodiment, the recall means in position of the movable rollers is constituted by at least one leaf spring per fork.
Les dessins ci-joints sont donnés à titre d'exemples indicatifs et non limitatifs. Ils représentent différents modes de réalisation préférés selon l'invention. Ils permettront de comprendre aisément l'invention.The attached drawings are given as indicative and non-limiting examples. They represent different preferred embodiments according to the invention. They will allow the invention to be easily understood.
La figure 1 représente une vue en coupe longitudinale dans le plan, d'un mode de réalisation d'une fourche d'une clé plate selon l'invention, dans lequel une des branches comporte deux bossages et l'autre renferme deux rouleaux mobiles en rotation et en translation.FIG. 1 represents a view in longitudinal section in the plane, of an embodiment of a fork of a flat key according to the invention, in which one of the branches has two bosses and the other contains two movable rollers in rotation and translation.
La figure 2 représente une vue en coupe longitudinale dans le plan, d'un mode de réalisation d'une fourche d'une clé plate selon l'invention, dans lequel une des branches renferme deux galets mobiles en rotation et l'autre renferme deux rouleaux mobiles en rotation et en translation.FIG. 2 represents a view in longitudinal section in the plane, of an embodiment of a fork of a flat key according to the invention, in which one of the branches contains two rollers movable in rotation and the other contains two rollers movable in rotation and in translation.
La figure 3 représente une vue en coupe longitudinale dans le plan, d'un mode de réalisation d'une fourche d'une clé plate selon l'invention, dans lequel chaque branche renferme deux rouleaux mobiles en rotation et en translation.FIG. 3 represents a view in longitudinal section in the plane, of an embodiment of a fork of a flat key according to the invention, in which each branch contains two rollers movable in rotation and in translation.
La figure 4 représente une vue en perspective du mode de réalisation de la figure 3, lors du montage de la clé plate.Figure 4 shows a perspective view of the embodiment of Figure 3, during assembly of the flat key.
La figure 5 représente une vue en coupe longitudinale dans le plan, selon la figure 3 de l'invention, dans laquelle les deux rouleaux mobiles d'une même branche coopèrent avec le même pan d'un écrou à visser ou à dévisser.FIG. 5 represents a view in longitudinal section in the plane, according to FIG. 3 of the invention, in which the two movable rollers of the same branch cooperate with the same side of a nut to be screwed or unscrewed.
La figure 6 représente une vue en coupe longitudinale dans le plan, selon la figure 3 de l'invention, dans laquelle les deux rouleaux mobiles d'une même branche coopèrent avec deux pans adjacents d'un écrou à visser ou à dévisser.FIG. 6 represents a view in longitudinal section in the plane, according to FIG. 3 of the invention, in which the two movable rollers of the same branch cooperate with two adjacent sides of a nut to be screwed or unscrewed.
La figure 7 représente une vue en coupe longitudinale dans le plan formé par la clé, dans laquelle le rappel en position est assuré par un ressort à lame pour chaque paire de rouleaux d'une seule branche de ladite clé. Enfin, la figure 8 représente une vue en coupe longitudinale dans le plan formé par la clé, dans laquelle le rappel en position est assuré par un élément en élastomère situé dans chaque logement longitudinal d'un rouleau.FIG. 7 represents a view in longitudinal section in the plane formed by the key, in which the return to position is ensured by a leaf spring for each pair of rollers of a single branch of said key. Finally, FIG. 8 represents a view in longitudinal section in the plane formed by the key, in which the return to position is ensured by an elastomer element located in each longitudinal housing of a roller.
La présente invention concerne une clé plate à commande de rotation alternative fonctionnant avec un débattement angulaire.The present invention relates to a flat key with control of alternative rotation operating with angular travel.
Le principe de fonctionnement de cette clé plate est bien représenté sur les figures.The operating principle of this flat key is well represented in the figures.
Cette clé plate comporte un manche longitudinal non représenté sur les figures qui est muni à au moins une des ses extrémités d'une fourche référencée 1 quel que soit le mode de réalisation représenté sur les figures.This flat key comprises a longitudinal handle not shown in the figures which is provided at at least one of its ends with a fork referenced 1 whatever the embodiment shown in the figures.
Cette fourche va permettre de visser et/ou de dévisser un objet fileté tel qu'un écrou 7, comme on le verra sur les figures 5 et 6, mais également un boulon, une vis, un tube ou autre moyen de fixation du domaine public.This fork will allow to screw and / or unscrew a threaded object such as a nut 7, as we will see in Figures 5 and 6, but also a bolt, a screw, a tube or other means of fixing the public domain .
Chaque fourche 1 est classiquement formée de deux branches 2 et 3 comme on le voit bien à la figure 1, la fourche 1 constituant une mâchoire. Sur toutes les figures, l'une des branches 4 comporte deux rouleaux mobiles 6 qui sont logés dans deux logements 8 et 9 pratiqués dans le corps de la fourche 1.Each fork 1 is conventionally formed of two branches 2 and 3 as can be seen in FIG. 1, the fork 1 constituting a jaw. In all the figures, one of the branches 4 comprises two movable rollers 6 which are housed in two housings 8 and 9 formed in the body of the fork 1.
Chaque logement 8 ou 9 est pourvu d'une ouverture 10 ou 11 qui débouche au niveau de la mâchoire c'est-à-dire au niveau du bord de la branche 4.Each housing 8 or 9 is provided with an opening 10 or 11 which opens at the jaw, that is to say at the edge of the branch 4.
Le couple de serrage va donc être obtenu par 1 'action du rouleau mobile 6 qui va être bloqué par arc-boutement 'entre, tout d'abord, les pans de l'écrou 7 qui sera mis en place afin d'être vissé ou dévissé, ensuite, les faces du logement 8 ou 9 où se trouve implanté le rouleau mobile 6 et enfin, la branche de la fourche 1 située en vis-à-vis de la branche 4.The torque will be obtained by one action of the mobile roll 6 will be blocked by jamming 'between, firstly, the folds of the nut 7 which will be set up in order to be screwed or unscrewed, then, the faces of the housing 8 or 9 where the movable roller 6 is located and finally, the branch of the fork 1 situated opposite the branch 4.
Le rouleau 6 est mobile entre deux positions à l'intérieur de son logement 8 ou 9.The roller 6 is movable between two positions inside its housing 8 or 9.
Une première position dite escamotée se fait à l'encontre d'un ressort 12, selon un premier mode de réalisation représenté aux figures 1 à 6, présent à l'intérieur du corps de la fourche 1.A first so-called retracted position is made against a spring 12, according to a first embodiment shown in FIGS. 1 to 6, present inside the body of the fork 1.
Une seconde position dite déployée dans laquelle le rouleau 6 dépasse de l'ouverture 10 ou 11 du logement 8 ou 9. Selon deux autres modes de réalisation, représentés aux figures 7 et 8, le moyen de rappel en position déployée des rouleaux 6 peut être constitué soit par un ressort à lame 19, soit par un élastomère 23 coincé dans le logement longitudinal 8 ou 9 contre ledit rouleau 6. Dans le cas d'un ressort à lame 19, il est 8 possible d'avoir un ressort par rouleau 6, un ressort pour deux rouleaux 6 d'une même branche 4 ou un ressort pour quatre rouleauxA second so-called deployed position in which the roller 6 projects from the opening 10 or 11 of the housing 8 or 9. According to two other embodiments, represented in FIGS. 7 and 8, the means for returning the rollers 6 to the deployed position can be constituted either by a leaf spring 19, or by an elastomer 23 wedged in the longitudinal housing 8 or 9 against said roller 6. In the case of a leaf spring 19, it is 8 possible to have one spring per roller 6, one spring for two rollers 6 of the same branch 4 or one spring for four rollers
6 d'une même fourche 1. Quoi qu'il en soit, la tangente ou point de contact entre le ressort à lame 19 et un rouleau 6 est perpendiculaire à l'axe longitudinal du logement 8 ou 9 concerné.6 of the same fork 1. Anyway, the tangent or point of contact between the leaf spring 19 and a roller 6 is perpendicular to the longitudinal axis of the housing 8 or 9 concerned.
Ce point de contact est généralement formé par les moyens de guidage 13.This contact point is generally formed by the guide means 13.
Outre ce mouvement de translation, le rouleau 6 peut effectuer un autre mouvement, qui est un mouvement de rotation sur lui-même puisque celui-ci comporte un axe faisant office de moyens de guidage 13.In addition to this translational movement, the roller 6 can perform another movement, which is a rotational movement on itself since the latter has an axis acting as guide means 13.
Les moyens de guidage 13 peuvent être présents sur une seule face des rouleaux 6, ou bien sur les deux faces qui constituent lesdits rouleaux 6. Chacun de ces moyens de guidage 13 correspond à une glissièreThe guide means 13 can be present on one side of the rollers 6, or on the two faces which constitute said rollers 6. Each of these guide means 13 corresponds to a slide
22 présente au niveau du corps de la fourche 1.22 present at the body of the fork 1.
Si l'arc-boutement permet de serrer ou de desserrer 1 'écrouIf the bracing allows the nut to be tightened or loosened
7, lorsque le couple de serrage est suffisant, la clé plate étant à commande de rotation alternative, le mouvement de retour de ladite clé plate va permettre l'escamotage de chaque rouleau 6 à l'intérieur de son logement 8 ou 9 et ainsi le déplacement de la fourche 1 par rapport à 1 'écrou 7.7, when the tightening torque is sufficient, the flat key being with alternating rotation control, the return movement of said flat key will allow the retraction of each roller 6 inside its housing 8 or 9 and thus the displacement of the fork 1 with respect to the nut 7.
L'arc-boutement du rouleau 6 est possible du fait que la force, exercée par le ou les pans de l'écrou 7 sur les faces intérieures du logement 8 ou 9, où le rouleau 6 arc-bouté est situé, est sensiblement perpendiculaire à ces faces intérieures dudit logement 8 ou 9. Dans le cas de l'escamotage du rouleau 6, cette force est sensiblement parallèle auxdites faces intérieures du logement 8 ou 9. Comme on le voit mieux à la figure 4, chaque rouleau mobileThe bracing of the roller 6 is possible because the force exerted by the flange (s) of the nut 7 on the interior faces of the housing 8 or 9, where the braced roller 6 is located, is substantially perpendicular to these interior faces of said housing 8 or 9. In the case of the retraction of the roller 6, this force is substantially parallel to said interior faces of the housing 8 or 9. As can be seen more clearly in FIG. 4, each movable roller
6 en rotation et en translation est pourvu de moyens de guidage6 in rotation and in translation is provided with guide means
13 qui coopèrent avec le corps de la fourche 1 pour guider son déplacement à 1 'intérieur du logement 8 ou 9.13 which cooperate with the body of the fork 1 to guide its movement inside the housing 8 or 9.
Ces moyens de guidage 13 sont situés à l'intérieur de glissières 22 présentes sur au moins l'une des deux plaques dorsale 16 ou frontale 17 formant la fourche 1, la plaque intermédiaire 18 recevant quant à elle le corps principal du rouleau 6.These guide means 13 are located inside slides 22 present on at least one of the two back 16 or front 17 plates forming the fork 1, the intermediate plate 18 receiving the main body of the roller 6.
La forme générale des logements 8 ou 9 est donc sensiblement oblongue, cette forme est due à la plaque intermédiaire 18 alors que les plaques frontale 17 et dorsale 16 délimitent latéralement chaque logement 8 ou 9. Deux plaques intermédiaire et latérale pourraient également former une seule plaque intermédiaire et latérale, non représentée sur les figures. Les moyens de guidage 13 peuvent donc être présents sur un seul des côtés du rouleau 6 que ce soit au niveau de la plaque frontale 17 ou de la plaque dorsale 16, mais ils peuvent, tout aussi bien être présents sur les deux plaques 16 et 17. Lorsque comme cela est représenté à la figure 4, une branche 4 comporte deux rouleaux mobiles 6, logés dans deux logements 8 et 9, les axes longitudinaux des deux logements 8 et 9, qui sont donc situés sur une seule et même branche 4 de la fourche 1, ont une obliquité qui est différente par rapport aux bords de la mâchoire où ils sont implantés.The general shape of the housings 8 or 9 is therefore substantially oblong, this shape is due to the intermediate plate 18 while the front 17 and dorsal 16 plates laterally delimit each housing 8 or 9. Two intermediate and lateral plates could also form a single intermediate and lateral plate, not shown in the figures. The guide means 13 can therefore be present on only one of the sides of the roller 6, whether at the level of the front plate 17 or of the back plate 16, but they can just as easily be present on the two plates 16 and 17 When, as shown in FIG. 4, a branch 4 comprises two movable rollers 6, housed in two housings 8 and 9, the longitudinal axes of the two housings 8 and 9, which are therefore located on a single branch 4 of the fork 1, have an obliquity which is different from the edges of the jaw where they are located.
Cette différence d'obliquité est bien représentée sur la figure 5.This difference in skew is well represented in FIG. 5.
Sur cette figure, l'angle aigu α est compris entre l'axe longitudinal du logement 8, ayant une ouverture 10, et le bord de la mâchoire où le logement 8 est implanté.In this figure, the acute angle α is between the longitudinal axis of the housing 8, having an opening 10, and the edge of the jaw where the housing 8 is located.
Cet angle α est compris entre 12 et 20* selon la nature des matériaux qui constituent la clé plate.This angle α is between 12 and 20 * depending on the nature of the materials which constitute the flat key.
L'angle aigu β est, pour sa part, compris entre l'angle longitudinal du logement 9 et le bord de la mâchoire où le logement 9 est implanté et est compris entre 42 et 50", toujours selon la nature des matériaux qui constitue la clé plate.The acute angle β is, for its part, between the longitudinal angle of the housing 9 and the edge of the jaw where the housing 9 is located and is between 42 and 50 " , always depending on the nature of the materials which constitute the Flat key.
Selon le mode de réalisation représenté à la figure 1, la branche 4 comporte deux rouleaux mobiles 6, situés en vis-à-vis d'une branche 5, où les rouleaux mobiles ne sont pas présents mais sont physiquement remplacés par deux bossages 14, représentant la forme déployée des rouleaux 6 lorsque ceux-ci sont présents.According to the embodiment shown in FIG. 1, the branch 4 comprises two movable rollers 6, located opposite a branch 5, where the movable rollers are not present but are physically replaced by two bosses 14, representing the deployed form of the rollers 6 when these are present.
Ces bossages 14 vont donc permettre un bon maintien en position de l'écrou 7 même si les rouleaux mobiles 6 sont absents sur cette branche 5. II suffira simplement de veiller à ce que le débattement des rouleaux mobiles 6 présents sur la branche 4 soit suffisant pour permettre la libre rotation de l'écrou 7, lorsque l'on fera un retour automatique de la clé plate autour dudit écrou 7.These bosses 14 will therefore allow good retention of the nut 7 in position even if the movable rollers 6 are absent on this branch 5. It will suffice simply to ensure that the travel of the movable rollers 6 present on the branch 4 is sufficient to allow the nut 7 to rotate freely, when the flat key is automatically returned around said nut 7.
Selon un autre mode de réalisation présenté à la figure 2, la branche 5 est remplacée par une branche 3 car les bossages sont simplement remplacés par des galets 15, qui ont la possibilité de bouger à l'intérieur de leur logement 20, mais cette mobilité est limitée à une simple rotation. Cette mobilité est rendue possible du fait de la présence d'un axe de rotation 21, ce qui va nécessiter la présence d'alésage ou de trou borgne au niveau des plaques dorsale 16 et/ou frontale 17, mais ceci n'est pas représenté sur les figures.According to another embodiment presented in FIG. 2, the branch 5 is replaced by a branch 3 because the bosses are simply replaced by rollers 15, which have the possibility of moving inside their housing 20, but this mobility is limited to a simple rotation. This mobility is made possible due to the presence of a rotation axis 21, which will require the presence of a bore or blind hole at the level of the back plates 16 and / or front 17, but this is not shown. in the figures.
Les galets 15, tout comme les bossages 14, vont permettre de bien maintenir l'écrou 7 que l'on voudra visser ou dévisser, mais permettront également de faciliter le retour en position de la clé plate lors de son débattement angulaire.The rollers 15, just like the bosses 14, will allow the nut 7 to be well maintained, which one will want to screw or unscrew, but will also make it possible to facilitate the return to the position of the flat key during its angular movement.
Le mode préférentiel de réalisation est représenté aux figures 3 à 8. Ce mode de réalisation présente une fourche 1 ayant deux branches identiques 4 qui se distinguent uniquement par la position des logements 8 et 9 de chaque branche 4.The preferred embodiment is shown in FIGS. 3 to 8. This embodiment has a fork 1 having two identical branches 4 which are distinguished only by the position of the housings 8 and 9 of each branch 4.
Ainsi, l'angle aigu α, compris entre l'axe longitudinal de l'un 8 des logements 8 et 9 et le bord de la mâchoire où le ' logement 8 est implanté, est compris entre 12 et 20" pour le rouleau 6 d'une des branches 4 le plus éloigné du fond de ladite mâchoire, ainsi que pour le rouleau 6 de l'autre mâchoire 4 le plus proche du fond de la mâchoire'.Thus, the acute angle α, between the longitudinal axis of one 8 of the housings 8 and 9 and the edge of the jaw where the ' housing 8 is located, is between 12 and 20 "for the roller 6 d 'one of the branches 4 furthest from the bottom of said jaw, as well as for the roller 6 of the other jaw 4 closest to the bottom of the jaw'.
L'angle aigu β de la même façon est compris entre l'axe longitudinal de l'un des logements 8 et 9 et le bord de la mâchoire où le logement 9 est implanté. Cet angle aigu β est compris entre 42 et 50" pour le rouleau 6 d'une des branches 4 le plus proche du fond de ladite mâchoire, ainsi que pour le rouleau 6 de l'autre branche 4 le plus éloigné du fond de la mâchoire. La même réserve est à faire pour ces valeurs d'angle α et β en ce qui concerne la nature des matériaux qui constitue la clé plate.The acute angle β in the same way is between the longitudinal axis of one of the housings 8 and 9 and the edge of the jaw where the housing 9 is located. This acute angle β is between 42 and 50 " for the roller 6 of one of the branches 4 closest to the bottom of said jaw, as well as for the roller 6 of the other branch 4 furthest from the bottom of the jaw The same reservation must be made for these angle values α and β with regard to the nature of the materials which constitute the flat key.
Comme on le voit bien à la figure 5, l'axe longitudinal de chaque logement 8 ou 9 le plus éloigné du fond de la mâchoire d'une des branches 4 de la fourche 1 est parallèle par rapport à 1 'axe longitudinal du logement 8 ou 9 le plus proche du fond de la mâchoire située sur l'autre branche 4 de ladite fourche 1.As can be seen in Figure 5, the longitudinal axis of each housing 8 or 9 furthest from the bottom of the jaw of one of the legs 4 of the fork 1 is parallel to the longitudinal axis of the housing 8 or 9 closest to the bottom of the jaw located on the other branch 4 of said fork 1.
Il est aisé de comprendre qu'il est possible de visser ou de dévisser. Pour passer de la fonction visser à la fonction dévisser, il suffira de faire pivoter de 180" la clé plate selon son axe longitudinal.It is easy to understand that it is possible to screw or unscrew. To switch from the screw to function unscrew, it will suffice to rotate the wrench 180 "along its longitudinal axis.
Dans les modes de réalisation des figures, le débattement angulaire minimum de la clé plate permettant un retour, lors du vissage ou du dévissage de l'écrou 7, de forme hexagonale, sera de 30* puisque l'arc-boutement pourra se faire sur chacun des six pans dudit écrou 7, voir figure 5, ainsi qu'au niveau de chacune des arêtes formant l'interface entre deux pans adjacents d'un même écrou 7. Il y a donc douze positions possibles. Dans le cas où l'on désire visser ou dévisser un tube, le débattement angulaire sera bien entendu beaucoup plus faible.In the embodiments of the figures, the minimum angular clearance of the flat key allowing a return, during the screwing or unscrewing of the nut 7, of hexagonal shape, will be 30 * since the bracing can be done on each of the hexagon of said nut 7, see FIG. 5, as well as at the level of each of the edges forming the interface between two adjacent panels of the same nut 7. There are therefore twelve possible positions. In the case where it is desired to screw or unscrew a tube, the angular clearance will of course be much lower.
Selon un autre mode de réalisation non représenté sur les figures, l'écartement des branches 3, 4 et/ou 5 de la fourche 1 peut être réglé au moyen d'un dispositif de réglage de type clé à molette.According to another embodiment not shown in the figures, the spacing of the branches 3, 4 and / or 5 of the fork 1 can be adjusted by means of an adjustment device of the adjustable wrench type.
Toujours selon un autre mode de réalisation, chaque rouleau mobile 6 est pourvu de stries sur tout ou partie de ses faces en contact avec l'écrou 7 et/ou avec les faces dudit logement 8 ouStill according to another embodiment, each movable roller 6 is provided with ridges on all or part of its faces in contact with the nut 7 and / or with the faces of said housing 8 or
9, ce qui va permettre encore d'augmenter la force de contact lors de l'arc-boutement.9, which will further increase the contact force during bracing.
Il est également possible d'avoir des logements 20 contenant des galets 15.It is also possible to have housings 20 containing rollers 15.
Que ce soit des rouleaux 6 ou des galets 15, les logements 8, 9 ou 20 ne permettent pas l'arc-boutement mais simplement le bon guidage des pans de l'écrou 7 lors de la manipulation de la clé plate à commande de rotation alternative.Whether it is rollers 6 or rollers 15, the housings 8, 9 or 20 do not allow the bracing but simply the correct guiding of the sides of the nut 7 when handling the flat wrench with rotation control alternative.
Bien entendu, ce principe d'arc-boutement pourrait être utilisé dans d'autres domaines mécaniques sans pour autant sortir du domaine de l'invention. REFERENCESOf course, this bracing principle could be used in other mechanical fields without departing from the scope of the invention. REFERENCES
I. Fourche de tout typeI. Fork of all types
3. Branche à deux galets 153. Two-roller branch 15
4. Branche à deux rouleaux 6 5. Branche à deux bossages 144. Branch with two rollers 6 5. Branch with two bosses 14
6. Rouleaux mobiles6. Movable rollers
7. Ecrou7. Nut
8. Logements à obliquité faible par rapport au bord de la mâchoire où ils sont implantés 9. Logements à obliquité forte par rapport au bord de la mâchoire où ils sont implantés 10. Ouvertures des logements 88. Housings with low obliquity to the edge of the jaw where they are installed 9. Housings with strong obliquity to the edge of the jaw where they are installed 10. Housing openings 8
II. Ouvertures des logements 9II. Housing openings 9
12. Ressorts des rouleaux 6 dans les logements 8 et/ou 9 13. Moyens' de guidage des rouleaux 612. Springs of the rollers 6 in the housings 8 and / or 9 13. Means for guiding the rollers 6
14. Bossages14. Bosses
15. Galets15. Pebbles
16. Plaque dorsale formant la fourche 116. Back plate forming the fork 1
17. Plaque frontale formant la fourche 1 18. Plaque intermédiaire17. Front plate forming the fork 1 18. Intermediate plate
19. Ressorts à lame19. Leaf springs
20. Logements des galets 1520. Pebble housing 15
21. Axe de rotation des galets 1521. Axis of rotation of the rollers 15
22. Glissières des moyens de guidage 13 23. Ressorts en élastomère α . Angle aigu entre le logement 8 et le bord de la mâchoire où il est implanté β . Angle aigu entre le logement 9 et le bord de la mâchoire où il est implanté 22. Guides 13 guideways. 23. Elastomer springs α. Acute angle between the housing 8 and the edge of the jaw where it is implanted β. Acute angle between the housing 9 and the edge of the jaw where it is implanted

Claims

REVENDICATIONS
1. Clé plate à commande de rotation alternative et manuelle fonctionnant avec un débattement angulaire, du type comportant un manche longitudinal muni, à au moins une de ses extrémités, d'une fourche (1) destinée à visser et/ou à dévisser un objet fileté tel qu'un écrou (7), un boulon, une vis, un tube ou autres, chaque fourche (1) est formée de deux branches (3, 4 et/ou 5) qui constituent une mâchoire, dont une (4) des branches (3, 4 ou 5) comporte deux rouleaux mobiles (6) logés dans deux logements (8 et 9) pratiqués dans le corps de la fourche (1 ) , chaque logement (8 ou 9) est pourvu d'une ouverture (10 ou 11) débouchant au niveau de la mâchoire, le couple de serrage est obtenu par l'action de chaque rouleau mobile (6) qui est bloqué du fait de l'arc-boutement obtenu entre la surface extérieure de l'objet fileté (7), les faces dudit logement (8 ou 9) et les branches (3, 4 et/ou 5) de la fourche (1 ), chaque rouleau mobile ( 6 ) est maintenu en contact avec la surface extérieure de l'objet (7) par un ressort (12), le déplacement longitudinal du rouleau mobile (6) s'effectue selon l'axe longitudinal du logement (8 ou 9) et est assuré par 1 'actionnement de la clef lors de son débattement angulaire autour de la surface extérieure de l'objet (7), chaque rouleau mobile (6) est déplacé dans son logement (8 ou 9) entre une position escamotée dans ledit logement (8) et une position d'arc-boutement avec l'objet (7), chaque rouleau mobile (6) est soit libre en rotation et en translation, soit bloqué du fait de l'arc-boutement, caractérisée par le fait que la branche (3, 4 ou 5), située en regard de la branche (4) où sont implantés les rouleaux mobiles ( 6), comporte des moyens de blocage (6, 14 ou 15) coopérant avec lesdits rouleaux (6) pour le vissage et/ou le dévissage de l'objet fileté (7), ladite branche (3, 4 ou 5) , portant ces moyens de blocage (6, 14 ou 15), a une forme extérieure identique à la branche (4) qui porte les rouleaux mobiles (6 ) .1. Flat key with alternating and manual rotation control operating with an angular movement, of the type comprising a longitudinal handle provided, at at least one of its ends, with a fork (1) intended to screw and / or unscrew an object threaded such as a nut (7), a bolt, a screw, a tube or others, each fork (1) is formed of two branches (3, 4 and / or 5) which constitute a jaw, one of which (4) branches (3, 4 or 5) has two movable rollers (6) housed in two housings (8 and 9) made in the body of the fork (1), each housing (8 or 9) is provided with an opening ( 10 or 11) emerging at the jaw, the tightening torque is obtained by the action of each movable roller (6) which is blocked due to the bracing obtained between the outer surface of the threaded object ( 7), the faces of said housing (8 or 9) and the legs (3, 4 and / or 5) of the fork (1), each movable roller (6) is kept in contact with the outer surface of the object (7) by a spring (12), the longitudinal displacement of the movable roller (6) takes place along the longitudinal axis of the housing (8 or 9) and is ensured by actuation of the key during its angular movement around the external surface of the object (7), each movable roller (6) is moved in its housing (8 or 9) between a retracted position in said housing (8) and an arc position - abutment with the object (7), each movable roller (6) is either free in rotation and in translation, or blocked due to the bracing, characterized in that the branch (3, 4 or 5) , located opposite the branch (4) where the movable rollers (6) are located, comprises locking means (6, 14 or 15) cooperating with said rollers (6) for screwing and / or unscrewing the threaded object (7), said branch (3, 4 or 5), carrying these locking means (6, 14 or 15), has an external shape identical to the branch (4) which carries the ro mobile uleaux (6).
2. Clé plate, selon la revendication 1, caractérisée par le fait que la branche (5), située en regard de la branche (4), où sont implantés les rouleaux (6), comporte deux bossages (14) qui facilitent l'arc-boutement de l'objet fileté (7).2. Flat key, according to claim 1, characterized in that the branch (5), located opposite the branch (4), where the rollers (6) are located, has two bosses (14) which facilitate the bracing of the threaded object (7).
3. Clé plate, selon la revendication 1, caractérisée par le fait que la branche (3), située en regard de la branche (4), où sont implantés les rouleaux mobiles (6) comporte deux galets (15) qui facilitent l'arc-boutement de l'objet fileté (7), chaque galet (15) étant mobile en rotation dans son logement (20).3. Flat key according to claim 1, characterized by fact that the branch (3), located opposite the branch (4), where the movable rollers (6) are located, comprises two rollers (15) which facilitate the bracing of the threaded object (7), each roller (15) being movable in rotation in its housing (20).
4. Clé plate, selon la revendication 1, caractérisée par le fait que la branche (4), située en regard de la branche (4), où sont implantés les rouleaux ( 6), comporte deux rouleaux mobiles (6) qui facilitent l'arc-boutement de l'objet fileté (7), chaque rouleau (6) étant mobile en rotation et longitudinalement dans son logement (8 ou 9 ) .4. Flat key according to claim 1, characterized in that the branch (4), located opposite the branch (4), where the rollers (6) are located, comprises two movable rollers (6) which facilitate l 'bracing of the threaded object (7), each roller (6) being movable in rotation and longitudinally in its housing (8 or 9).
5. Clé plate où l'axe longitudinal de chaque logement (8 ou 9), situé sur une branche (4) de la fourche (1), est oblique par rapport au bord de la mâchoire où le logement (8 ou 9) est implanté, et où les axes longitudinaux des deux logements (8 et 9 ), situés sur une seule et même branche (4) de la fourche ( 1), ont une obliquité différente par rapport au bord de la mâchoire où ils sont implantés, selon l'une quelconque des revendications 1 à 4, caractérisée par le fait que l'angle aigu (α) compris entre l'axe longitudinal de l'un5. Flat key where the longitudinal axis of each housing (8 or 9), located on a branch (4) of the fork (1), is oblique to the edge of the jaw where the housing (8 or 9) is implanted, and where the longitudinal axes of the two housings (8 and 9), located on one and the same branch (4) of the fork (1), have a different obliquity relative to the edge of the jaw where they are implanted, according to any one of claims 1 to 4, characterized in that the acute angle (α) between the longitudinal axis of one
(8) des logements (8 et 9) et le bord de la mâchoire, où le logement (8) est implanté, est compris entre 12 et 20' pour le rouleau (6) d'une des branches (4), le plus éloigné du fond de ladite mâchoire, et pour le rouleau (6) de l'autre branche (4), le plus proche du fond de la mâchoire, et que l'angle aigu (β) compris entre l'axe longitudinal de l'un(8) of the housings (8 and 9) and the edge of the jaw, where the housing (8) is located, is between 12 and 20 ' for the roller (6) of one of the branches (4), the most distant from the bottom of said jaw, and for the roller (6) of the other branch (4), closest to the bottom of the jaw, and that the acute angle (β) between the longitudinal axis of the a
(9) des logements et le bord de la mâchoire, où le logement (9) est implanté, est compris entre 42 et 50" pour le rouleau (6) d'une des branches (4), le plus proche du fond de ladite mâchoire, et pour le rouleau ( 6) de 1 'autre branche (4) , le plus éloigné du fond de la mâchoire, selon la nature des matériaux qui constitue la clé plate.(9) of the housing and the edge of the jaw, where the housing (9) is located, is between 42 and 50 " for the roller (6) of one of the branches (4), closest to the bottom of said jaw, and for the roller (6) of the other branch (4), the furthest from the bottom of the jaw, depending on the nature of the materials which constitute the flat key.
6. Clé plate, qui utilise deux rouleaux mobiles (6) positionnés dans ses deux branches (4) selon la revendication 5, caractérisée par le fait que l'axe longitudinal de chaque logement (8 ou 9 ) le plus éloigné du fond de la mâchoire d'une des branches (4) de la fourche (1 ) est parallèle par rapport à 1 'axe longitudinal du logement (8 ou 9) le plus proche du fond de la mâchoire, situé sur 1'autre branche (4) de ladite fourche ( 1 ) .6. Flat key, which uses two movable rollers (6) positioned in its two branches (4) according to claim 5, characterized in that the longitudinal axis of each housing (8 or 9) furthest from the bottom of the jaw of one of the legs (4) of the fork (1) is parallel to the longitudinal axis of the housing (8 or 9) closest to the bottom of the jaw, located on the other branch (4) of said fork (1).
7. Clé plate, selon l'une quelconque des revendications 1 à7. Flat key according to any one of claims 1 to
6, caractérisée par le fait que chaque rouleau mobile (6) est pourvu de moyens de guidage (13) qui coopèrent avec le corps de la fourche ( 1 ) pour guider son déplacement à l'intérieur du logement (8 ou 9) .6, characterized in that each movable roller (6) is provided with guide means (13) which cooperate with the body of the fork (1) to guide its movement inside the housing (8 or 9).
8. Clé plate, selon l'une quelconque des revendications 1 à8. Flat key according to any one of claims 1 to
7, caractérisée par le fait que l'écartement des branches (4 et/ou 5) de la fourche (1) est réglable au moyen d'un dispositif de réglage du type clef à molette.7, characterized in that the spacing of the branches (4 and / or 5) of the fork (1) is adjustable by means of an adjustment device of the adjustable wrench type.
9. Clé plate, selon l'une quelconque des revendications 1 à9. Flat key according to any one of claims 1 to
8, caractérisée par le fait que chaque rouleau mobile (6) est pourvu de stries sur tout ou partie de ses faces en contact avec l'écrou (7) et les faces du logement (8 ou 9) où il est implanté et ce, de manière à augmenter la surface de contact lors de l'arc-boutement.8, characterized in that each movable roller (6) is provided with ridges on all or part of its faces in contact with the nut (7) and the faces of the housing (8 or 9) where it is installed, so as to increase the contact surface during bracing.
10. Clé plate, selon l'une quelconque des revendications 1 à 7 ou 9, caractérisée par le fait que le moyen de rappel en position des rouleaux mobiles (6) est constitué par un ressort hélicoïdal (12) pour chaque rouleau (6).10. Flat key according to any one of claims 1 to 7 or 9, characterized in that the return means in position of the movable rollers (6) is constituted by a helical spring (12) for each roller (6) .
11. Clé plate, selon l'une quelconque des revendications 1 à 7 ou 9, caractérisé par le fait que le moyen de rappel en position des rouleaux mobiles (6) est constitué par un élastomère (23) pour chaque rouleau ( 6) .11. Flat key according to any one of claims 1 to 7 or 9, characterized in that the return means in position of the movable rollers (6) is constituted by an elastomer (23) for each roller (6).
12. Clé plate, selon l'une quelconque des revendications 1 à 7 ou 9, caractérisé par le fait que le moyen de rappel en position des rouleaux mobiles ( 6) est constitué par au moins un ressort à lame (19) par fourche (1). 12. Flat key according to any one of claims 1 to 7 or 9, characterized in that the return means in position of the movable rollers (6) consists of at least one leaf spring (19) per fork ( 1).
PCT/FR1995/000637 1994-05-17 1995-05-17 Open-end wrench with alternating rotation control WO1995031312A1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
AU26191/95A AU2619195A (en) 1994-05-17 1995-05-17 Open-end wrench with alternating rotation control
JP7529421A JPH10500069A (en) 1994-05-17 1995-05-17 Alternating rotation control type wrench
EP95920945A EP0759835A1 (en) 1994-05-17 1995-05-17 Open-end wrench with alternating rotation control

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR94/06229 1994-05-17
FR9406229A FR2720023B1 (en) 1994-05-17 1994-05-17 Flat wrench with alternative rotation control.

Publications (1)

Publication Number Publication Date
WO1995031312A1 true WO1995031312A1 (en) 1995-11-23

Family

ID=9463426

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/FR1995/000637 WO1995031312A1 (en) 1994-05-17 1995-05-17 Open-end wrench with alternating rotation control

Country Status (6)

Country Link
EP (1) EP0759835A1 (en)
JP (1) JPH10500069A (en)
AU (1) AU2619195A (en)
CA (1) CA2188866A1 (en)
FR (1) FR2720023B1 (en)
WO (1) WO1995031312A1 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1721707A2 (en) * 2005-05-10 2006-11-15 Proxene Tools Co., Ltd. Bi-directional adjustable spanner with a driving roller
GB2454505A (en) * 2007-11-09 2009-05-13 Barry John Kittow Roberts Spanner with ratchet mechanism
CN101870096A (en) * 2009-04-24 2010-10-27 Ibt控股有限责任公司 Wrench with bolt engaging portion and roller
WO2011102704A3 (en) * 2010-02-22 2011-11-03 Oyervides Ochoa, Luis Gerardo Wrench comprising self-adjustable rollers
WO2012063122A3 (en) * 2010-04-30 2014-07-17 Wolf-Dietrich Zander Arrangement or tool for transmitting a torque

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
PL194352B1 (en) * 2001-02-28 2007-05-31 Bylinka Slawomir Roller-type clamping device
TWI392562B (en) * 2011-04-22 2013-04-11 Wen Terng Sheu Open ratchet wrench

Citations (8)

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Publication number Priority date Publication date Assignee Title
US2712259A (en) * 1953-05-07 1955-07-05 Harvey J Cowell Open ended ratchet wrench
US2730000A (en) * 1953-07-13 1956-01-10 Jr Harry E Crittenden Slidable jaw face means for an open end wrench
GB786227A (en) * 1955-08-15 1957-11-13 Aro Equipment Corp Improvements in or relating to ratchet wrenches
US2896488A (en) * 1957-02-28 1959-07-28 William W L Ahana Wrench
FR1246768A (en) * 1959-08-04 1960-11-25 Improvements to open escape keys
US3906822A (en) * 1973-05-03 1975-09-23 Nicholas Leslie Hertelendy Ratchet wrenches
US4440047A (en) * 1981-12-31 1984-04-03 Robbins Christopher B Uni-directional drive wrench
FR2559701A1 (en) * 1984-02-20 1985-08-23 Nakayama Eiji Ring spanner with ratchet

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2712259A (en) * 1953-05-07 1955-07-05 Harvey J Cowell Open ended ratchet wrench
US2730000A (en) * 1953-07-13 1956-01-10 Jr Harry E Crittenden Slidable jaw face means for an open end wrench
GB786227A (en) * 1955-08-15 1957-11-13 Aro Equipment Corp Improvements in or relating to ratchet wrenches
US2896488A (en) * 1957-02-28 1959-07-28 William W L Ahana Wrench
FR1246768A (en) * 1959-08-04 1960-11-25 Improvements to open escape keys
US3906822A (en) * 1973-05-03 1975-09-23 Nicholas Leslie Hertelendy Ratchet wrenches
US4440047A (en) * 1981-12-31 1984-04-03 Robbins Christopher B Uni-directional drive wrench
FR2559701A1 (en) * 1984-02-20 1985-08-23 Nakayama Eiji Ring spanner with ratchet

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1721707A2 (en) * 2005-05-10 2006-11-15 Proxene Tools Co., Ltd. Bi-directional adjustable spanner with a driving roller
EP1721707A3 (en) * 2005-05-10 2008-01-09 Proxene Tools Co., Ltd. Bi-directional adjustable spanner with a driving roller
AU2006200610B2 (en) * 2005-05-10 2010-09-02 Proxene Tools Co., Ltd Bi-directional adjustable spanner with a driving roller
GB2454505A (en) * 2007-11-09 2009-05-13 Barry John Kittow Roberts Spanner with ratchet mechanism
CN101870096A (en) * 2009-04-24 2010-10-27 Ibt控股有限责任公司 Wrench with bolt engaging portion and roller
WO2011102704A3 (en) * 2010-02-22 2011-11-03 Oyervides Ochoa, Luis Gerardo Wrench comprising self-adjustable rollers
WO2012063122A3 (en) * 2010-04-30 2014-07-17 Wolf-Dietrich Zander Arrangement or tool for transmitting a torque

Also Published As

Publication number Publication date
EP0759835A1 (en) 1997-03-05
AU2619195A (en) 1995-12-05
CA2188866A1 (en) 1995-11-23
FR2720023A1 (en) 1995-11-24
FR2720023B1 (en) 1996-07-19
JPH10500069A (en) 1998-01-06

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