WO2019149614A1 - Double-action tightening tool - Google Patents

Double-action tightening tool Download PDF

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Publication number
WO2019149614A1
WO2019149614A1 PCT/EP2019/051740 EP2019051740W WO2019149614A1 WO 2019149614 A1 WO2019149614 A1 WO 2019149614A1 EP 2019051740 W EP2019051740 W EP 2019051740W WO 2019149614 A1 WO2019149614 A1 WO 2019149614A1
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WO
WIPO (PCT)
Prior art keywords
pinion
plate
rotation
section
tool
Prior art date
Application number
PCT/EP2019/051740
Other languages
French (fr)
Inventor
Hervé SCOHIER
Maxime PRIETO
Nicolas AUBANEL
Original Assignee
Supratec
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 Supratec filed Critical Supratec
Publication of WO2019149614A1 publication Critical patent/WO2019149614A1/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
    • B25B13/48—Spanners; Wrenches for special purposes
    • B25B13/481—Spanners; Wrenches for special purposes for operating in areas having limited access
    • 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
    • B25B17/00—Hand-driven gear-operated wrenches or screwdrivers
    • B25B17/02—Hand-driven gear-operated wrenches or screwdrivers providing for torque amplification

Definitions

  • the invention relates to a clamping tool.
  • the invention particularly relates, although not exclusively, a clamping tool facilitating the clamping of an element on a support in small spaces.
  • An object of the invention is to provide a clamping tool that can secure an element to a support with a large torque, even in case of difficulty of access to an area where the element must be secured to the support.
  • a clamping tool comprising a plate and a pinion which is intended to receive an element to be clamped, the pinion being connected to a gear train of the tool ensuring the rotation of the pinion about a given axis in order to cause in service a first clamping of the element on a support, the pinion and the plate being provided with their temporary coupling means in rotation about said axis to ensure in service a second tightening of the element by rotation of the plate.
  • a first tightening is ensured by the rotational drive of the pinion by the gear train.
  • the second tightening is ensured by the rotation of the plate which causes a corresponding rotation of the pinion thanks to the temporary coupling means.
  • the clamping tool is thus double acting which makes it possible to tighten with a large torque the element on the support.
  • the clamping tool can be used in small spaces. Indeed, the use of the gear train to start the clamping limits the space required for the clamping tool to clamp the element on the support.
  • a distal end of the plate is tapered.
  • the distal end of the plate is at least partially open.
  • the distal end is removable from the rest of the plate.
  • the gear train comprises two wheels arranged to be able to drive the pinion simultaneously in rotation.
  • the pinion is mounted in the plate by a lower main face of the plate and held in position by a fixing plate.
  • the pinion comprises two sections, a first section coupled to the gear train and a second section carrying the temporary coupling means of the pinion to the plate.
  • the two sections are in one piece.
  • the first section is shaped to be permanently coupled to the gear train.
  • FIG. 1 is a three-dimensional view of a clamping tool according to a first particular embodiment of the invention
  • FIG. 2 is a three-dimensional view of a portion of the tool illustrated in FIG. 1, the plate being shown in a wired manner to better observe the inside of the tool,
  • FIG. 3 is an enlarged view of one end of the portion illustrated in FIG.
  • FIG. 4 is a view identical to FIG. 3, the plate being shown in solid lines,
  • FIG. 5 is a three-dimensional view of a pinion of the tool shown in Figure 1;
  • Figure 6 is a three-dimensional view of a portion of a clamping tool according to a second embodiment of the invention.
  • the clamping tool 1 according to a first embodiment of the invention comprises a plate 2 which extends longitudinally along a first axis X.
  • the plate 2 is typically flat so as to have two main faces extending in planes parallel to each other, to the first axis X and to a second axis Y perpendicular to the first axis X.
  • the plate 2 thus has a small thickness which facilitates its placement even in areas of reduced dimensions, the platinum 2 is here in one piece,
  • the plate 2 has a proximal end 5 and a distal end 6, the distal end 6 being tapered here,
  • the clamping tool 1 further comprises a gear train 7 which is preferably motorized.
  • the clamping tool 1 comprises an engine block 8 which extends along a third axis Z which is perpendicular to the first axis X and the second axis Y.
  • the engine block 8 thus comprises a drive shaft 9 extending through the plate 2, at the proximal end 5 of the plate 2, and along the third axis Z.
  • the input of the gear train 7 is connected to the drive shaft 9 and the output of the gear train 7 is connected to a pinion 10 of the clamping tool 1.
  • the gear train 7 typically comprises a first set of three wheels extending one after the other in the plate 2 from the proximal end 5 to the distal end 6, the first wheel 11 being integral in rotation with the drive shaft 9, the second wheel 12 being rotated by the first wheel 11 and the third wheel 13 being rotated by the second wheel 12, the three wheels 11, 12, 13 being all rotated along axes parallel to the third axis Z.
  • the gear train 7 further comprises a second set of three wheels arranged in a triangle at the distal end 6 of the clamping tool 1.
  • the wheels of the second set all have a diameter smaller than each of the wheels of the first together.
  • a first wheel 14 of the second assembly is thus rotatably connected to the third wheel 13 of the first assembly, said first wheel 14 in turn rotating simultaneously the two other wheels 15, 16 of the second assembly which are arranged symmetrically from and the other of the first wheel 14.
  • the three wheels 14, 15, 16 of the second set are also all rotated along axes parallel to the third axis Z.
  • the wheels 11, 12, 13 of the first assembly make it possible to transmit a torque from the engine block 8 to the distal end 6 and the wheels 14, 15, 16 of the second assembly make it possible to transmit a torque up to to the pinion 10, which is thus rotated about an axis Z 'parallel to the axis Z.
  • the pinion 10 is also positioned so that the two other wheels 15, 16 of the second set are also arranged symmetrically on either side of the pinion 10.
  • the pinion 10 can thus be rotated simultaneously by said two wheels. 15, 16.
  • the pinion 10 is typically arranged at the end of the distal end 6 of the plate 2.
  • the face upper main 3 of the plate 2 does not cover the pinion 10 so that the element to be clamped can be inserted easily into the pinion 10.
  • the pinion 10 here consists of two sections 17, 18 which are preferably in one piece.
  • the first section 17 is the one coupled to the gear train 7 and the second section 18 is the one intended to be temporarily coupled in rotation to the plate 2.
  • the two sections 17, 18 are coaxial and extend in the extension of one another.
  • the two sections 17, 18 also have an identical outside diameter.
  • the first section 17 is hollow in order to receive the element to be clamped and / or its support.
  • the first section 17 is shaped externally gear 20 so as to be rotated by the two wheels 15, 16 of the second set of wheels.
  • the first section 17 comprises grooves 19 (only a part of which is referenced here) capable of cooperating with corresponding teeth of the element to be clamped. In this way, the element to be clamped is integral in rotation with the first section 17 and thus with the pinion 10.
  • the first section 17 is not closed.
  • the first section 17 here has a section (of normal axis of rotation Z 'of the pinion) shaped externally in an arc and internally U-shaped, the rounded portion of the ü and the arc With a circle having the same center of curvature, your branches of the U also extend parallel to each other.
  • This opening 21 of the first section 17 facilitates the arrangement and the removal of the element to be clamped from the clamping tool 1. This is particularly advantageous in the case where the clamping tool 1 has to intervene in a zone d reduced space.
  • the plate 2 correspondingly comprises an opening 22 at the edge of its distal end 6.
  • the distal end 6 is thus open over substantially the entire height of the first section 17 from an inner edge of the plate 2 until the pinion 10.
  • the distal end 6 is however closed on the height of the second section 18.
  • the second section 18 is hollow in order to receive the element to be clamped and / or its support.
  • the second section 18 is shaped externally so as to have teeth 23 (only a part of which is referenced here) intended to cooperate with rollers 24 (only a part of which is referenced here) of the plate 2 arranged between the second section 18 and the plate 2.
  • the pinion 10 and the plate 2 are thus provided with their means of temporary coupling in rotation about the axis of rotation Z 'of the pinion 10.
  • the second section 18 is otherwise closed.
  • the second section 18 is shaped as a ring.
  • the second section 18 here has a section (of normal axis of rotation Z 'pinion 10) shaped externally in circle and internally in a circle, said circles having the same center of curvature (belonging to the same straight line as the center of curvature of each section of the first section 17).
  • the inner diameter of the second section 18 is greater here at the end of the second section 18 connected to the first section 17 at its opposite end.
  • the pinion 10 is mounted in the plate 2 by the lower main face 4 of the plate 2 and held in position by a fixing plate 25 which is for example referred to the plate. In this way, it is not necessary to open the entire plate 2 to access the pinion 10 during maintenance operations.
  • the operator deposits an element to be clamped in the pinion 10 by making the grooves coincide with the teeth of one and the other.
  • the operator approaches the clamping tool 1 of the support on which to tighten the element.
  • the long aspect of the clamping tool 1 facilitates access to areas of reduced space.
  • the gear train 7 is detached from the drive shaft. 9.
  • This can be provided by conventional clutch means typically belonging to the clamping tool.
  • the operator can then manually perform a rotation of the clamping tool 1 along the axis of rotation Z 'of the pinion 10 by acting on the proximal end 5 of the plate.
  • the rotation of the plate 2 around the axis Z ' causes a jamming of the rollers 24 which thus rotate the pinion 10 with the plate 2.
  • a reverse rotation of the plate 2 disengages the pinion 10 of said plate 2
  • the clamping tool 1 is thus used by means of hourly and counterclockwise movements that allow the element to be clamped in successive steps. This ensures a second tightening of the element.
  • the double action of the clamping tool 1 therefore allows a very good tightening of the element.
  • the clamping tool 1 makes it possible to ensure the tightening to the final torque required, without going through a pre-clamping phase with the aid of another tool, while avoiding the constraints of difficult access to the Tightening.
  • clamping tool 1 can be used even in spaces of small dimensions.
  • This second embodiment is identical to that of the first embodiment, with the difference that the plate is not a single piece but is composed of several pieces.
  • the distal end 106 of the plate 102 is a patch on the rest of the plate 102 and secured to the rest of the plate 102 for example by screwing.
  • the disassemblable distal end 106 extends here to the wheels 114, 115, 116 of the second set that remain mounted in the rest of the plate 102.
  • the distal end 106 thus has the location for receiving the pinion 110.
  • the pinion 110 is mounted in the plate 102 by the lower main face of the plate 102 (here the portion of the lower main face defined by the distal end 106 ⁇ and held in position by a fixing plate which is for example aimed at the distal end 106. In this way, it is not necessary to open the entire distal end 106 to access the pinion 110 during operations of maintenance.
  • the pinion 110 can be mounted in the distal end 106 and then the distal end 106 can be joined to the rest of the plate 102.
  • the distal end 106 can be assembled with the rest of the plate 102 and then the pinion 110 can be mounted in the plate. 102.
  • said tool could be connected to a robot allowing an automated clamping of the target element and / or an automated removal of an element to tighten in the tool.
  • the pinion is partially open, the pinion can be fully closed.
  • the gear train can rotate the pinion with the help of a single wheel.
  • the pinion may be shaped differently.
  • the two sections of the pinion may not have an identical outside diameter.
  • the section that can temporarily mate with the platen may be of greater diameter than the section coupled to the gear train.
  • the temporary coupling means will for example be called “freewheeling” so as to allow a momentary interruption of the drive in rotation of the pinion by the plate.
  • the coupling means may thus be chosen from the following types; by obstacle, by wedging, by ratchet, by rolling elements, by cam ...
  • the pinion and the platen can jointly form a set ratchet wheel (s).
  • the gear train will be able to have a different number of wheels than what has been indicated. Furthermore, although here the entire gear train remains coupled to the pinion, even when it is coupled to the plate, part or all gear can be disconnected from the pinion when it is coupled to platinum. The pinion can thus be shaped to be temporarily disconnected from the gear train.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Clamps And Clips (AREA)
  • Milling Processes (AREA)

Abstract

The invention concerns a tightening tool comprising a plate and a pinion (10) that is intended to receive a component to be tightened, the pinion being linked to a gear train of the tool that rotates the pinion about a given axis (Z') so as to perform, during use, a first tightening of the component on a support, the pinion and the plate being provided with means for temporarily coupling them in rotation about said axis so as to perform, during use, a second tightening of the element by rotation of the plate.

Description

Outil de serrage à double action  Double action clamping tool
L'invention concerne un outil de serrage. L'invention concerne en particulier, bien que de manière non exclusive, un outil de serrage facilitant le serrage d'un élément sur un support dans des espaces réduits.  The invention relates to a clamping tool. The invention particularly relates, although not exclusively, a clamping tool facilitating the clamping of an element on a support in small spaces.
ARRIERE PLAN TECHNOLOGIQUE DE L' INVENTION Afin de faciliter le serrage par exemple d'un écrou sur une vis, il est connu des outils de serrage motorisés. Certains sont en particulier dimensionnés afin de pouvoir permettre le serrage même lorsque l'environnement rend difficile d'accès la zone de serrage en particulier dans les espaces réduits. Toutefois les outils de serrage ne permettent pas toujours de pouvoir serrer avec un couple suffisant l'écrou à la vis.  BACKGROUND OF THE INVENTION In order to facilitate the tightening of, for example, a nut on a screw, motorized clamping tools are known. Some are particularly sized to allow the clamping even when the environment makes difficult access to the clamping area especially in small spaces. However, the clamping tools do not always allow to tighten with sufficient torque the nut to the screw.
OBJET DE L' INVENTION  OBJECT OF THE INVENTION
Un but de l'invention est de proposer un outil de serrage qui puisse solidariser un élément à un support avec un couple important, même en cas de difficulté d'accès à une zone où l'élément doit être solidarisé au support.  An object of the invention is to provide a clamping tool that can secure an element to a support with a large torque, even in case of difficulty of access to an area where the element must be secured to the support.
BREVE DESCRIPTION DE L' INVENTION En vue de la réalisation de ce but, on propose un outil de serrage comprenant une platine et un pignon qui est destiné à recevoir un élément à serrer, le pignon étant relié à un train d'engrenages de l'outil assurant la rotation du pignon autour d'un axe donné afin de provoquer en service un premier serrage de l'élément sur un support, le pignon et la platine étant pourvus de leurs moyens d'accouplement temporaire en rotation autour dudit axe pour assurer en service un deuxième serrage de l'élément par rotation de la platine. De la sorte, un premier serrage est assuré par l'entraînement en rotation du pignon par le train d'engrenages. Le deuxième serrage est assuré par la mise en rotation de la platine qui provoque une rotation correspondante du pignon grâce aux moyens d' accouplement temporaire . BRIEF DESCRIPTION OF THE INVENTION With a view to achieving this object, a clamping tool is proposed comprising a plate and a pinion which is intended to receive an element to be clamped, the pinion being connected to a gear train of the tool ensuring the rotation of the pinion about a given axis in order to cause in service a first clamping of the element on a support, the pinion and the plate being provided with their temporary coupling means in rotation about said axis to ensure in service a second tightening of the element by rotation of the plate. In this way, a first tightening is ensured by the rotational drive of the pinion by the gear train. The second tightening is ensured by the rotation of the plate which causes a corresponding rotation of the pinion thanks to the temporary coupling means.
L'outil de serrage est ainsi à double action ce qui permet de pouvoir serrer avec un couple important l'élément sur le support.  The clamping tool is thus double acting which makes it possible to tighten with a large torque the element on the support.
De façon avantageuse, l'outil de serrage peut être utilisé dans des espaces réduits. En effet, l'utilisation du train d'engrenages pour débuter le serrage permet de limiter l'espace nécessaire à l'outil de serrage pour serrer l'élément sur le support.  Advantageously, the clamping tool can be used in small spaces. Indeed, the use of the gear train to start the clamping limits the space required for the clamping tool to clamp the element on the support.
De façon particulière, une extrémité distale de la platine est biseautée.  In particular, a distal end of the plate is tapered.
De façon particulière, l'extrémité distale de la platine est au moins partiellement ouverte.  In particular, the distal end of the plate is at least partially open.
De façon particulière, l'extrémité distale est démontable du reste de la platine.  In particular, the distal end is removable from the rest of the plate.
De façon particulière, le train d'engrenages comporte deux roues agencées pour pouvoir entraîner simultanément en rotation le pignon.  In particular, the gear train comprises two wheels arranged to be able to drive the pinion simultaneously in rotation.
De façon particulière, le pignon est monté dans la platine par une face principale inférieure de la platine et maintenu en position par une plaque de fixation.  In particular, the pinion is mounted in the plate by a lower main face of the plate and held in position by a fixing plate.
De façon particulière, le pignon comporte deux tronçons, un premier tronçon accouplé au train d'engrenages et un deuxième tronçon portant les moyens d'accouplement temporaire du pignon à la platine. De façon particulière, les deux tronçons sont d'un seul tenant . In particular, the pinion comprises two sections, a first section coupled to the gear train and a second section carrying the temporary coupling means of the pinion to the plate. In particular, the two sections are in one piece.
De façon particulière, le premier tronçon est conformé pour être accouplé en permanence au train d'engrenages.  In particular, the first section is shaped to be permanently coupled to the gear train.
D’autres caractéristiques et avantages de l'invention ressortiront à 1a lecture de la description qui suit de modes de réalisation particuliers non limitatifs de l'invention.  Other features and advantages of the invention will emerge from a reading of the following description of particular non-limiting embodiments of the invention.
BREVE DESCRIPTION DES DESSINS  BRIEF DESCRIPTION OF THE DRAWINGS
L' invention sera mieux comprise à la lumière de la description qui suit en référence aux figures annexées ci-jointe parmi lesquelles :  The invention will be better understood in the light of the description which follows with reference to the appended figures in which:
la figure 1 est une vue en trois dimensions d'un outil de serrage selon un premier mode de réalisation particulier de l'invention,  FIG. 1 is a three-dimensional view of a clamping tool according to a first particular embodiment of the invention,
la figure 2 est une vue en trois dimensions d'une partie de l'outil illustré à la figure 1, la platine étant représentée en filaire pour mieux observer l'intérieur de l'outil,  FIG. 2 is a three-dimensional view of a portion of the tool illustrated in FIG. 1, the plate being shown in a wired manner to better observe the inside of the tool,
la figure 3 est une vue agrandie d'une extrémité de la partie illustrée à la figure 2,  FIG. 3 is an enlarged view of one end of the portion illustrated in FIG.
la figure 4 est une vue identique à la figure 3, la platine étant représenté en trait plein,  FIG. 4 is a view identical to FIG. 3, the plate being shown in solid lines,
- la figure 5 est une vue en trois dimensions d'un pignon de l'outil illustré à la figure 1 ;  - Figure 5 is a three-dimensional view of a pinion of the tool shown in Figure 1;
la figure 6 est une vue en trois dimensions d'une partie d'un outil de serrage selon un deuxième mode de réalisation de l'invention.  Figure 6 is a three-dimensional view of a portion of a clamping tool according to a second embodiment of the invention.
DESCRIPTION DETAILLEE DE MODES DE REALISATION DETAILED DESCRIPTION OF EMBODIMENTS
PARTICULIERS DE L'INVENTION En référence aux différentes figures, l'outil de serrage 1 selon un premier mode de réalisation de l'invention comprend une platine 2 qui s'étend longitudinalement selon un premier axe X. La platine 2 est typiquement plane de sorte à présenter deux faces principales s'étendant dans des plans parallèles entre eux, au premier axe X et à un deuxième axe Y perpendiculaire au premier axe X. La platine 2 présente ainsi une épaisseur peu importante ce qui facilite son placement même dans des zones de dimensions réduites, La platine 2 est ici d'un seul tenant, PARTICULARS OF THE INVENTION With reference to the various figures, the clamping tool 1 according to a first embodiment of the invention comprises a plate 2 which extends longitudinally along a first axis X. The plate 2 is typically flat so as to have two main faces extending in planes parallel to each other, to the first axis X and to a second axis Y perpendicular to the first axis X. The plate 2 thus has a small thickness which facilitates its placement even in areas of reduced dimensions, the platinum 2 is here in one piece,
La platine 2 présente une extrémité proximale 5 et une extrémité distale 6, l'extrémité distale 6 étant ici biseautée ,  The plate 2 has a proximal end 5 and a distal end 6, the distal end 6 being tapered here,
L'outil de serrage 1 comporte par ailleurs un train d'engrenages 7 qui est de préférence motorisé. A cet effet, l'outil de serrage 1 comporte un bloc moteur 8 qui s'étend selon un troisième axe Z qui est perpendiculaire au premier axe X et au deuxième axe Y. Le bloc moteur 8 comporte ainsi un arbre d'entraînement 9 s'étendant à travers la platine 2, au niveau de l'extrémité proximale 5 de la platine 2, et selon le troisième axe Z.  The clamping tool 1 further comprises a gear train 7 which is preferably motorized. For this purpose, the clamping tool 1 comprises an engine block 8 which extends along a third axis Z which is perpendicular to the first axis X and the second axis Y. The engine block 8 thus comprises a drive shaft 9 extending through the plate 2, at the proximal end 5 of the plate 2, and along the third axis Z.
L'entrée du train d'engrenages 7 est liée à l'arbre d'entrainement 9 et la sortie du train d'engrenages 7 est liée à un pignon 10 de l'outil de serrage 1, Le train d' engrenages 7 comporte typiquement un premier ensemble de trois roues s'étendant les unes à la suite des autres dans la platine 2 depuis l'extrémité proximale 5 jusqu'à l'extrémité distale 6, la première roue 11 étant solidaire en rotation de l'arbre d'entraînement 9, la deuxième roue 12 étant entraînée en rotation par la première roue 11 et la troisième roue 13 étant entraînée en rotation par la deuxième roue 12, les trois roues 11, 12, 13 étant toutes entraînées en rotation selon des axes parallèles au troisième axe Z. The input of the gear train 7 is connected to the drive shaft 9 and the output of the gear train 7 is connected to a pinion 10 of the clamping tool 1. The gear train 7 typically comprises a first set of three wheels extending one after the other in the plate 2 from the proximal end 5 to the distal end 6, the first wheel 11 being integral in rotation with the drive shaft 9, the second wheel 12 being rotated by the first wheel 11 and the third wheel 13 being rotated by the second wheel 12, the three wheels 11, 12, 13 being all rotated along axes parallel to the third axis Z.
Le train d'engrenages 7 comporte par ailleurs un deuxième ensemble de trois roues agencées en triangle au niveau de l'extrémité distale 6 de l'outil de serrage 1. Les roues du deuxième ensemble présentent toutes un diamètre inférieur à chacune des roues du premier ensemble. Une première roue 14 du deuxième ensemble est ainsi liée en rotation à la troisième roue 13 du premier ensemble, ladite première roue 14 entraînant à son tour en rotation simultanément les deux autres roues 15, 16 du deuxième ensemble qui sont agencées de manière symétrique de part et d'autre de la première roue 14. Les trois roues 14, 15, 16 du deuxième ensemble sont également toutes entraînées en rotation selon des axes parallèles au troisième axe Z.  The gear train 7 further comprises a second set of three wheels arranged in a triangle at the distal end 6 of the clamping tool 1. The wheels of the second set all have a diameter smaller than each of the wheels of the first together. A first wheel 14 of the second assembly is thus rotatably connected to the third wheel 13 of the first assembly, said first wheel 14 in turn rotating simultaneously the two other wheels 15, 16 of the second assembly which are arranged symmetrically from and the other of the first wheel 14. The three wheels 14, 15, 16 of the second set are also all rotated along axes parallel to the third axis Z.
De la sorte, les roues 11, 12, 13 du premier ensemble permettent de transmettre un couple depuis le bloc moteur 8 jusqu'à l'extrémité distale 6 et les roues 14, 15, 16 du deuxième ensemble permettent de transmettre un couple jusqu'au pignon 10, qui est ainsi entraîné en rotation autour d'un axe Z' parallèle à l'axe Z.  In this way, the wheels 11, 12, 13 of the first assembly make it possible to transmit a torque from the engine block 8 to the distal end 6 and the wheels 14, 15, 16 of the second assembly make it possible to transmit a torque up to to the pinion 10, which is thus rotated about an axis Z 'parallel to the axis Z.
Le pignon 10 est par ailleurs positionné de sorte que les deux autres roues 15, 16 du deuxième ensemble soient également agencées de manière symétrique de part et d'autre du pignon 10. Le pignon 10 peut ainsi être entraîné en rotation simultanément par lesdites deux roues 15, 16. Le pignon 10 est typiquement agencé au bout de l'extrémité distale 6 de la platine 2. La face principale supérieure 3 de la platine 2 ne recouvre pas le pignon 10 afin que l'élément à serrer puisse être inséré aisément dans le pignon 10. The pinion 10 is also positioned so that the two other wheels 15, 16 of the second set are also arranged symmetrically on either side of the pinion 10. The pinion 10 can thus be rotated simultaneously by said two wheels. 15, 16. The pinion 10 is typically arranged at the end of the distal end 6 of the plate 2. The face upper main 3 of the plate 2 does not cover the pinion 10 so that the element to be clamped can be inserted easily into the pinion 10.
En référence à la figure 5, ledit pignon 10 va être à présent décrit.  With reference to FIG. 5, said pinion 10 will now be described.
Le pignon 10 se compose ici de deux tronçons 17, 18 qui sont de préférence d'un seul tenant. Le premier tronçon 17 est celui accouplé au train d'engrenages 7 et le deuxième tronçon 18 est celui destiné à pouvoir être accouplé de manière temporaire en rotation à la platine 2.  The pinion 10 here consists of two sections 17, 18 which are preferably in one piece. The first section 17 is the one coupled to the gear train 7 and the second section 18 is the one intended to be temporarily coupled in rotation to the plate 2.
Les deux tronçons 17, 18 sont coaxiaux et s'étendent dans le prolongement l'un de l'autre. Les deux tronçons 17, 18 présentent par ailleurs un diamètre extérieur identique.  The two sections 17, 18 are coaxial and extend in the extension of one another. The two sections 17, 18 also have an identical outside diameter.
Le premier tronçon 17 est creux afin de pouvoir recevoir l'élément à serrer et/ou son support. Le premier tronçon 17 est conformé extérieurement en roue dentée 20 afin de pouvoir être entraîné en rotation par les deux roues 15, 16 du deuxième ensemble de roues. De façon particulière, sur sa surface interne, le premier tronçon 17 comporte des rainures 19 (dont une partie seulement est référencée ici) aptes à coopérer avec des dents correspondantes de l'élément à serrer. De la sorte, l'élément à serrer est solidaire en rotation du premier tronçon 17 et donc du pignon 10.  The first section 17 is hollow in order to receive the element to be clamped and / or its support. The first section 17 is shaped externally gear 20 so as to be rotated by the two wheels 15, 16 of the second set of wheels. In particular, on its inner surface, the first section 17 comprises grooves 19 (only a part of which is referenced here) capable of cooperating with corresponding teeth of the element to be clamped. In this way, the element to be clamped is integral in rotation with the first section 17 and thus with the pinion 10.
Selon un mode de réalisation particulier, le premier tronçon 17 n'est pas fermé. Le premier tronçon 17 présente ici une section (de normale l'axe de rotation Z' du pignon) conformée extérieurement en arc de cercle et intérieurement en U, la partie arrondie du ü et de l'arc de cercle présentant le même centre de courbure, tes branches du U s'étendent par ailleurs parallèlement l'une à l'autre. According to a particular embodiment, the first section 17 is not closed. The first section 17 here has a section (of normal axis of rotation Z 'of the pinion) shaped externally in an arc and internally U-shaped, the rounded portion of the ü and the arc With a circle having the same center of curvature, your branches of the U also extend parallel to each other.
Cette ouverture 21 du premier tronçon 17 facilite l'agencement et le retrait de l'élément à serrer de l'outil de serrage 1. Ceci s'avère particulièrement avantageux dans le cas où l'outil de serrage 1 doit intervenir dans une zone d'espace réduit.  This opening 21 of the first section 17 facilitates the arrangement and the removal of the element to be clamped from the clamping tool 1. This is particularly advantageous in the case where the clamping tool 1 has to intervene in a zone d reduced space.
De préférence, la platine 2 comporte de manière correspondante une ouverture 22 au niveau du bord de son extrémité distale 6. L'extrémité distale 6 est ainsi ouverte sur sensiblement toute la hauteur du premier tronçon 17 depuis un bord interne de la platine 2 jusqu'au pignon 10. L'extrémité distale 6 est cependant fermée sur la hauteur du deuxième tronçon 18.  Preferably, the plate 2 correspondingly comprises an opening 22 at the edge of its distal end 6. The distal end 6 is thus open over substantially the entire height of the first section 17 from an inner edge of the plate 2 until the pinion 10. The distal end 6 is however closed on the height of the second section 18.
Ceci facilite encore davantage l'agencement et le retrait de l'élément à serrer de l'outil de serrage 1.  This further facilitates the arrangement and removal of the clamping element of the clamping tool 1.
Le deuxième tronçon 18 est creux afin de pouvoir recevoir l'élément à serrer et/ou son support. Le deuxième tronçon 18 est conformé extérieurement de sorte à présenter des dents 23 (dont une partie seulement est référencée ici) destinées à coopérer avec des rouleaux 24 (dont une partie seulement est référencée ici) de la platine 2 agencés entre le deuxième tronçon 18 et la platine 2. Le pignon 10 et la platine 2 sont ainsi pourvus de leurs moyens d' accouplement temporaire en rotation autour de l'axe de rotation Z' du pignon 10.  The second section 18 is hollow in order to receive the element to be clamped and / or its support. The second section 18 is shaped externally so as to have teeth 23 (only a part of which is referenced here) intended to cooperate with rollers 24 (only a part of which is referenced here) of the plate 2 arranged between the second section 18 and the plate 2. The pinion 10 and the plate 2 are thus provided with their means of temporary coupling in rotation about the axis of rotation Z 'of the pinion 10.
Le deuxième tronçon 18 est par ailleurs fermé. Le deuxième tronçon 18 est conformé en anneau. Le deuxième tronçon 18 présente ici une section (de normale l'axe de rotation Z' du pignon 10) conformée extérieurement en cercle et intérieurement en cercle, lesdits cercles présentant le même centre de courbure (appartenant à la même droite que le centre de courbure de chaque section du premier tronçon 17). Le diamètre intérieur du deuxième tronçon 18 est plus important ici au niveau de l'extrémité du deuxième tronçon 18 raccordée au premier tronçon 17 qu'au niveau de son extrémité opposée. The second section 18 is otherwise closed. The second section 18 is shaped as a ring. The second section 18 here has a section (of normal axis of rotation Z 'pinion 10) shaped externally in circle and internally in a circle, said circles having the same center of curvature (belonging to the same straight line as the center of curvature of each section of the first section 17). The inner diameter of the second section 18 is greater here at the end of the second section 18 connected to the first section 17 at its opposite end.
Afin de faciliter le montage du pignon 10 et sa manutention, le pignon 10 est monté dans la platine 2 par la face principale inférieure 4 de la platine 2 et maintenu en position par une plaque de fixation 25 qui est par exemple visée sur la platine. De la sorte, il n'est pas nécessaire d'ouvrir toute la platine 2 pour accéder au pignon 10 lors d'opérations de maintenance.  To facilitate the mounting of the pinion 10 and its handling, the pinion 10 is mounted in the plate 2 by the lower main face 4 of the plate 2 and held in position by a fixing plate 25 which is for example referred to the plate. In this way, it is not necessary to open the entire plate 2 to access the pinion 10 during maintenance operations.
Une mise en œuvre de l'outil de serrage 1 va être à présent décrite.  An implementation of the clamping tool 1 will now be described.
L'opérateur dépose un élément à serrer dans le pignon 10 en faisant coïncider les rainures avec les dents de l'un et de l'autre.  The operator deposits an element to be clamped in the pinion 10 by making the grooves coincide with the teeth of one and the other.
Puis l'opérateur approche l'outil de serrage 1 du support sur lequel serrer l'élément. On note que l'aspect longiforme de l'outil de serrage 1 facilite l'accès à des zones d'espaces réduits.  Then the operator approaches the clamping tool 1 of the support on which to tighten the element. Note that the long aspect of the clamping tool 1 facilitates access to areas of reduced space.
L'opérateur active alors le bloc moteur 8 qui entraîne en rotation le pignon 10 via le train d'engrenages 7. On assure ainsi un premier serrage de l'élément.  The operator then activates the motor unit 8 which rotates the pinion 10 via the gear train 7. This ensures a first tightening of the element.
Puis une fois le bloc moteur 8 désactivé (soit manuellement soit automatiquement par exemple par détection d'un couple de serrage atteint), le train d'engrenages 7 est désolidarisé de l'arbre d'entraînement 9. Ceci peut être assuré par des moyens d'embrayage classique appartenant typiquement à l'outil de serrage. Then, once the engine block 8 has been deactivated (either manually or automatically, for example by detecting a tightening torque reached), the gear train 7 is detached from the drive shaft. 9. This can be provided by conventional clutch means typically belonging to the clamping tool.
L'opérateur peut alors effectuer manuellement une rotation de l'outil de serrage 1 selon l'axe de rotation Z' du pignon 10 en agissant sur l'extrémité proximale 5 de la platine. La rotation de la platine 2 autour de l'axe Z' entraîne un coincement des rouleaux 24 qui solidarisent ainsi en rotation le pignon 10 avec la platine 2. Toutefois, une rotation inverse de la platine 2, désengage le pignon 10 de ladite platine 2. On utilise ainsi l'outil de serrage 1 par des mouvements horaires et antihoraires permettant un serrage par étapes successives de l'élément. On assure donc un deuxième serrage de 1' élément .  The operator can then manually perform a rotation of the clamping tool 1 along the axis of rotation Z 'of the pinion 10 by acting on the proximal end 5 of the plate. The rotation of the plate 2 around the axis Z 'causes a jamming of the rollers 24 which thus rotate the pinion 10 with the plate 2. However, a reverse rotation of the plate 2, disengages the pinion 10 of said plate 2 The clamping tool 1 is thus used by means of hourly and counterclockwise movements that allow the element to be clamped in successive steps. This ensures a second tightening of the element.
La double action de l'outil de serrage 1 autorise dès lors un très bon serrage de l'élément. L'outil de serrage 1 permet d'assurer le serrage au couple final demandé, sans passer par une phase de pré-serrage à l'aide d'un autre outil, en s'affranchissant des contraintes d'accès difficile à la zone de serrage.  The double action of the clamping tool 1 therefore allows a very good tightening of the element. The clamping tool 1 makes it possible to ensure the tightening to the final torque required, without going through a pre-clamping phase with the aid of another tool, while avoiding the constraints of difficult access to the Tightening.
En outre, l'outil de serrage 1 peut être utilisé même dans des espaces de dimensions réduites.  In addition, the clamping tool 1 can be used even in spaces of small dimensions.
En référence à la figure 6, un deuxième mode de réalisation de l'invention va être à présent décrit.  Referring to Figure 6, a second embodiment of the invention will now be described.
Ce deuxième mode de réalisation est identique à celui du premier mode de réalisation à 1a différence que la platine n'est pas d'un seul tenant mais est composée de plusieurs pièces.  This second embodiment is identical to that of the first embodiment, with the difference that the plate is not a single piece but is composed of several pieces.
De préférence, l'extrémité distale 106 de la platine 102 est une pièce rapportée sur le reste de la platine 102 et solidarisée au reste de la platine 102 par exemple par vissage. Preferably, the distal end 106 of the plate 102 is a patch on the rest of the plate 102 and secured to the rest of the plate 102 for example by screwing.
Grâce à l'extrémité distale démontable de la platine 102, il s'avère plus simple d'assurer des opérations de maintenance sur la platine.  With the removable distal end of the plate 102, it is easier to provide maintenance operations on the turntable.
L'extrémité distale 106 démontable s'étend ici jusqu'aux roues 114, 115, 116 du deuxième ensemble qui demeurent montées dans le reste de la platine 102. L'extrémité distale 106 comporte ainsi l'emplacement pour la réception du pignon 110.  The disassemblable distal end 106 extends here to the wheels 114, 115, 116 of the second set that remain mounted in the rest of the plate 102. The distal end 106 thus has the location for receiving the pinion 110.
On assure ainsi plus facilement des opérations de maintenance sur le pignon 110 et sur la partie de la platine 102 la plus sollicitée.  In this way, it is easier to carry out maintenance operations on the pinion gear 110 and on the part of the most stressed plate 102.
Préférentiellement, afin de faciliter encore davantage le montage du pignon 110 et sa manutention, le pignon 110 est monté dans la platine 102 par la face principale inférieure de la platine 102 (ici la portion de la face principale inférieure définie par l'extrémité distale 106} et maintenu en position par une plaque de fixation qui est par exemple visée sur l'extrémité distale 106. De la sorte, il n'est pas nécessaire d'ouvrir toute l'extrémité distale 106 pour accéder au pignon 110 lors d'opérations de maintenance.  Preferably, in order to further facilitate the mounting of the pinion 110 and its handling, the pinion 110 is mounted in the plate 102 by the lower main face of the plate 102 (here the portion of the lower main face defined by the distal end 106 } and held in position by a fixing plate which is for example aimed at the distal end 106. In this way, it is not necessary to open the entire distal end 106 to access the pinion 110 during operations of maintenance.
On peut monter le pignon 110 dans l'extrémité distale 106 puis assembler l'extrémité distale 106 au reste de la platine 102. En variante on peut assembler l'extrémité distale 106 au reste de la platine 102 puis monter le pignon 110 dans la platine 102.  The pinion 110 can be mounted in the distal end 106 and then the distal end 106 can be joined to the rest of the plate 102. In a variant, the distal end 106 can be assembled with the rest of the plate 102 and then the pinion 110 can be mounted in the plate. 102.
Bien entendu l’invention n’est pas limitée aux modes de réalisation décrits et on pourra y apporter des variantes de réalisation sans sortir du cadre de l'invention tel que défini par les revendications. Naturally, the invention is not limited to the embodiments described and it will be possible to provide variants without departing from the scope of the invention as defined by the claims.
En particulier, bien qu' ici il ait été indiqué que c'était un opérateur qui manipulait l'outil, ledit outil pourra être relié à un robot permettant un serrage automatisé de l'élément visé et/ou une dépose automatisée d'un élément à serrer dans l'outil.  In particular, although it has been indicated here that it was an operator who manipulated the tool, said tool could be connected to a robot allowing an automated clamping of the target element and / or an automated removal of an element to tighten in the tool.
Bien qu' ici le pignon soit partiellement ouvert, le pignon pourra être entièrement fermé. Dans ce cas, le train d'engrenages pourra entraîner en rotation le pignon qu'avec l'aide d'une seule roue.  Although here the pinion is partially open, the pinion can be fully closed. In this case, the gear train can rotate the pinion with the help of a single wheel.
Le pignon pourra être conformé différemment. Ainsi les deux tronçons du pignon pourront ne pas présenter un diamètre extérieur identique. Par exemple le tronçon pouvant s'accoupler temporairement à la platine pourra être d'un diamètre supérieur au tronçon accouplé au train d' engrenages .  The pinion may be shaped differently. Thus the two sections of the pinion may not have an identical outside diameter. For example, the section that can temporarily mate with the platen may be of greater diameter than the section coupled to the gear train.
De manière générale, d'autres moyens d'accouplement temporaire entre le pignon et la platine que ceux décrits pourront être employés pour permettre un serrage par étapes successives de l'élément agencé dans le pignon. Les moyens d'accouplement temporaires seront par exemple dits « à roue libre » afin de pouvoir permettre une interruption momentanée de l'entraînement en rotation du pignon par la platine. Les moyens d'accouplement pourront ainsi être choisis parmi les types suivants ; par obstacle, par coincement, par cliquet, par éléments roulants, par came ... Par exemple le pignon et la platine pourront former conjointement un ensemble roue à rochet - cliquet ( s ) .  In general, other means of temporary coupling between the pinion and the plate that those described may be used to allow a tightening in successive steps of the element arranged in the pinion. The temporary coupling means will for example be called "freewheeling" so as to allow a momentary interruption of the drive in rotation of the pinion by the plate. The coupling means may thus be chosen from the following types; by obstacle, by wedging, by ratchet, by rolling elements, by cam ... For example the pinion and the platen can jointly form a set ratchet wheel (s).
De manière générale, le train d'engrenages pourra comporter un nombre différent de roues que ce qui a été indiqué. Par ailleurs, bien qu' ici tout le train d'engrenages demeure accouplé au pignon, même lorsque celui-ci est accouplé à la platine, une partie ou tout le train d'engrenages pourra être désaccouplé du pignon lorsque celui-ci est accouplé à la platine. Le pignon pourra ainsi être conformé pour pouvoir être désaccouplé de manière temporaire du train d'engrenages. In general, the gear train will be able to have a different number of wheels than what has been indicated. Furthermore, although here the entire gear train remains coupled to the pinion, even when it is coupled to the plate, part or all gear can be disconnected from the pinion when it is coupled to platinum. The pinion can thus be shaped to be temporarily disconnected from the gear train.

Claims

REVENDICATIONS
1. Outil de serrage comprenant une platine (2 ; 102) et un pignon (10 ; 110) qui est destiné à recevoir un élément à serrer, le pignon étant relié à un train d' engrenages (7) de l' outil assurant la rotation du pignon autour d' un axe donné (Z' ) afin de provoquer en service un premier serrage de l'élément sur un support, le pignon et la platine étant pourvus de leurs moyens d'accouplement temporaire en rotation autour dudit axe pour assurer en service un deuxième serrage de l'élément par rotation de la platine.  1. Clamping tool comprising a plate (2; 102) and a pinion (10; 110) which is intended to receive an element to be clamped, the pinion being connected to a gear train (7) of the tool providing the rotation of the pinion about a given axis (Z ') in order to cause in service a first clamping of the element on a support, the pinion and the plate being provided with their means of temporary coupling in rotation about said axis to ensure in operation a second tightening of the element by rotation of the plate.
2. Outil de serrage selon 1a revendication 1, dans lequel une extrémité distale {6 ; 106) de la platine est biseautée .  2. Clamping tool according to claim 1, wherein a distal end (6; 106) of the plate is tapered.
3. Outil selon l'une des revendications précédentes, dans lequel l'extrémité distale (6 ; 106) de la platine est au moins partiellement ouverte.  3. Tool according to one of the preceding claims, wherein the distal end (6; 106) of the plate is at least partially open.
4. Outil selon l'une des revendications précédentes, dans lequel l'extrémité distale (106) est démontable du reste de la platine.  4. Tool according to one of the preceding claims, wherein the distal end (106) is removable from the rest of the plate.
5. Outil selon l'une des revendications précédentes, dans lequel le train d'engrenages (7) comporte deux roues (15, 16 ; 115, 116) agencées pour pouvoir entraîner simultanément en rotation le pignon (10) .  5. Tool according to one of the preceding claims, wherein the gear train (7) comprises two wheels (15, 16; 115, 116) arranged to be able to simultaneously drive in rotation the pinion (10).
6. Outil selon l'une des revendications précédentes, dans lequel le pignon (10 ; 110) est monté dans la platine (2 ; 102) par une face principale inférieure (4) de la platine et maintenu en position par une plaque de fixation (25). 6. Tool according to one of the preceding claims, wherein the pinion (10; 110) is mounted in the plate (2; 102) by a lower main face (4) of the plate and held in position by a fixing plate (25).
7. Outil selon l'une des revendications précédentes, dans lequel le pignon (10 ; 110) comporte deux tronçons {17, 18), un premier tronçon accouplé au train d'engrenages (7) et un deuxième tronçon portant les moyens d'accouplement temporaire du pignon à la platine7. Tool according to one of the preceding claims, wherein the pinion (10; 110) comprises two sections (17, 18), a first section coupled to the gear train (7) and a second section carrying the means of temporary coupling of the pinion to the plate
(2) . (2).
8. Outil selon la revendication 7, dans lequel les deux tronçons (17, 18) sont d'un seul tenant.  8. Tool according to claim 7, wherein the two sections (17, 18) are in one piece.
9. Outil selon la revendication 7 ou la revendication 8, dans lequel le premier tronçon (17) est conformé pour être accouplé en permanence au train d'engrenages (9).  The tool of claim 7 or claim 8, wherein the first section (17) is shaped to be permanently coupled to the gear train (9).
PCT/EP2019/051740 2018-02-02 2019-01-24 Double-action tightening tool WO2019149614A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1850905 2018-02-02
FR1850905A FR3077516B1 (en) 2018-02-02 2018-02-02 DOUBLE ACTION TIGHTENING TOOL

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WO2019149614A1 true WO2019149614A1 (en) 2019-08-08

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8613789U1 (en) * 1986-05-22 1986-07-17 Podbregar, Friedrich, 8000 München Rotor tool
US5544553A (en) * 1994-02-24 1996-08-13 Galat; Donald E. Off-set geared nutrunner attachment
US20060236816A1 (en) * 2005-04-22 2006-10-26 Mike Picou Tool for fastening connectors to printed circuit boards
US20080245193A1 (en) * 2007-04-05 2008-10-09 Lipka Michael L Wrench Device
US20160176024A1 (en) * 2014-12-17 2016-06-23 Stanley D. Winnard Ratchet wrench
TW201722631A (en) * 2015-12-31 2017-07-01 元駒股份有限公司 Drive type open wrench

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8613789U1 (en) * 1986-05-22 1986-07-17 Podbregar, Friedrich, 8000 München Rotor tool
US5544553A (en) * 1994-02-24 1996-08-13 Galat; Donald E. Off-set geared nutrunner attachment
US20060236816A1 (en) * 2005-04-22 2006-10-26 Mike Picou Tool for fastening connectors to printed circuit boards
US20080245193A1 (en) * 2007-04-05 2008-10-09 Lipka Michael L Wrench Device
US20160176024A1 (en) * 2014-12-17 2016-06-23 Stanley D. Winnard Ratchet wrench
TW201722631A (en) * 2015-12-31 2017-07-01 元駒股份有限公司 Drive type open wrench

Also Published As

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FR3077516A1 (en) 2019-08-09
FR3077516B1 (en) 2020-02-14

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