FR2841166A1 - Wrench for tightening and undoing nuts in difficult to reach locations, e.g. in machines such as aircraft engines, has rod inside cover having at least a flexible portion - Google Patents
Wrench for tightening and undoing nuts in difficult to reach locations, e.g. in machines such as aircraft engines, has rod inside cover having at least a flexible portion Download PDFInfo
- Publication number
- FR2841166A1 FR2841166A1 FR0207607A FR0207607A FR2841166A1 FR 2841166 A1 FR2841166 A1 FR 2841166A1 FR 0207607 A FR0207607 A FR 0207607A FR 0207607 A FR0207607 A FR 0207607A FR 2841166 A1 FR2841166 A1 FR 2841166A1
- Authority
- FR
- France
- Prior art keywords
- notches
- flexible portion
- flexible
- sheath
- tool
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
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
- B25B23/00—Details of, or accessories for, spanners, wrenches, screwdrivers
- B25B23/0007—Connections or joints between tool parts
- B25B23/0021—Prolongations interposed between handle and tool
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25G—HANDLES FOR HAND IMPLEMENTS
- B25G1/00—Handle constructions
- B25G1/02—Handle constructions flexible
- B25G1/025—Handle constructions flexible for screwdrivers, wrenches or spanners
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mutual Connection Of Rods And Tubes (AREA)
Abstract
Description
Atre constitud notamment par ['Argon ou l'HAlium.To be constituted in particular by ['Argon or HAlium.
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CLEF DE VISSAGE A TIGE FLEXIBLETIGHTENING WRENCH WITH FLEXIBLE ROD
DESCRIPTIONDESCRIPTION
Cette invention ressortit a une clef de vissage a This invention comes under a screwing wrench
tige flexible.flexible rod.
Des clefs de forme particuliere vent requises pour visser ou devisser des boulons dans des endroits recules, surtout au fond de cavites etroites, encombrees ou de forme irreguliere. Le probleme se rencontre a un degre aigu a l'interieur de machines Particularly shaped keys required to screw or unscrew bolts in remote places, especially at the bottom of narrow, congested or irregularly shaped cavities. The problem is encountered at an acute level inside machines
comme des moteurs d'avions.like aircraft engines.
Le brevet francais 2 692 511 decrit une clef French patent 2,692,511 describes a key
depliante de serrage de boulons pour une telle machine. folding bolt clamp for such a machine.
La tige de clef comprend une partie pivotante et une partie tournoyante, a angle droit avec la precedente et au bout de laquelle un embout de vissage est place de maniere a pouvoir tourner. La tige renferme un train de vissage, comprenant successivement une manette exterieure, un arbre dans la partie pivotante et un train d'engrenage dans la partie tournoyante, et un train de commande analogue au precedent mais qui ne s'etend que jusqu'a un axe de rotation entre deux troncons de la partie tournoyante i une rotation imprimee a la manette d'un des trains a pour effet de faire tourner l'arbre et de mettre en mouvement le train d' engrenage, et finalement d'entralner l' embout en rotation, pour le train de vissage, ou de faire tourner le deuxieme troncon de la partie tournoyante sur le premier troncon et de deployer la partie tournoyante ou de la replier, pour le train de The key rod comprises a pivoting part and a turning part, at right angles to the previous one and at the end of which a screwdriver bit is placed so as to be able to turn. The rod contains a screw train, successively comprising an external handle, a shaft in the pivoting part and a gear train in the turning part, and a control train similar to the previous one but which only extends up to a axis of rotation between two sections of the turning part i a rotation imprinted on the handle of one of the trains has the effect of rotating the shaft and setting in motion the gear train, and finally to internalize the end piece in rotation, for the screwing train, or to rotate the second part of the turning part on the first part and to deploy the turning part or to fold it up, for the part
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commande. Une telle clef convient bien pour acceder a des boulons situes au fond de cavites annulaires s'ouvrant sur un puits central, comme on en trouve entre des disques paralleles de rotor, la clef etant enfoncee dans le puits avec la partie tournoyante a l'etat replie avant que son deploiement ne lui permette de penetrer dans les cavites; mais il est manifeste que la clef reste trop rigide pour se prefer a beaucoup ordered. Such a key is well suited for accessing bolts located at the bottom of annular cavities opening onto a central well, as found between parallel rotor discs, the key being inserted into the well with the rotating part in the state folds back before its deployment allows it to enter cavities; but it is obvious that the key remains too rigid to be preferred to much
d'autres applications.other applications.
L'objet principal de l' invention est de fournir une clef de vissage ou de devissage de boulons qui soit assez souple pour etre introduite dans des cavites de forme moins reguliere et qui permette d'atteindre des boulons dont l'acces necessitait auparavant un The main object of the invention is to provide a key for screwing or unscrewing bolts which is flexible enough to be introduced into cavities of less regular shape and which makes it possible to reach bolts whose access previously required a
demontage de la machine a laquelle ils appartenaient. disassembly of the machine to which they belonged.
La clef conforme a l' invention comprend une partie de tige, un outil de vissage a une extremite de la partie de tige, la partie de tige comprenant une gaine ayant au moins une portion souple, un train de vissage s'etendant dans la gaine et finissant a l'outil, et un train de commande stetendant dans la gaine et apte a deformer la partie de tige a la portion souple, caracteri see en ce que le train de vis s age comprend un jonc rigide en torsion et souple en flexion au moins a travers la portion souple, et le train de commande comprend une portion principale rigide en traction, coulissant dans la gaine, comprenant un cable souple en flexion au moins a travers la portion souple, et fixce The key according to the invention comprises a rod part, a screwing tool at one end of the rod part, the rod part comprising a sheath having at least one flexible portion, a screwing train extending in the sheath and ending with the tool, and a control train extending in the sheath and capable of deforming the rod part to the flexible portion, characterized in that the screw-threaded train comprises a rod rigid in torsion and flexible in bending at less through the flexible portion, and the control train comprises a main portion rigid in traction, sliding in the sheath, comprising a flexible cable in bending at least through the flexible portion, and fixce
a la gaine entre la portion souple et ltoutil. with the sheath between the flexible portion and the tool.
Il ressort de cette definition que le train de vissage est simplifie, puisque l'engrenage est remplace It follows from this definition that the screwing train is simplified, since the gear is replaced
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par une structure lineaire dont l'avantage est d'etre beaucoup plus souple, et que la partie de tige en general est plus souple que la partie tournoyante a troncons articules de la clef precedente et peut prendre diverges formes imposees par la manette exterieure, ou divers degree de deformation; et la clef peut etre parfaitement rectiligne a l'etat libre, ce qui lui donne la faculte de passer par des passages resserres. Le train de vissage et le train de commande peuvent etre concentriques. D'autre part, la portion souple peut etre multiple: une forme d'esse provenant d'une double torsion souple est d'ailleurs exposee dans by a linear structure the advantage of which is that it is much more flexible, and that the rod part in general is more flexible than the rotating part with articulated sections of the preceding key and can take various forms imposed by the external lever, or various degrees of deformation; and the key can be perfectly rectilinear in the free state, which gives it the ability to pass through tight passages. The screw train and the control train can be concentric. On the other hand, the flexible portion can be multiple: a shape of esse from a flexible double twist is also exposed in
la realisation principale.the main achievement.
Un mode particulier de creation de la portion souple a partir d'une gaine en tube continu est propose comme une variante de l' invention: des crans paralleles et des entailles en arc de cercle vent operes dans le tube, de sorte que les entailles s'etendent devant les crans en s'elargissant en s'eloignant des crane, les segments du tube etant separes par les entailles et articules entre les crans et les entailles. Dans cette variante, les segments peuvent comprendre des dents saillant dans les entailles et des encoches opposees aux dents, afin d'accroitre la rigidite en torsion de la gaine a la A particular mode of creation of the flexible portion from a sheath in a continuous tube is proposed as a variant of the invention: parallel notches and notches in an arc of a circle operated in the tube, so that the notches s 'extend in front of the notches, widening away from the notches, the segments of the tube being separated by the notches and articulations between the notches and the notches. In this variant, the segments may include teeth projecting into the notches and notches opposite the teeth, in order to increase the torsional stiffness of the sheath at the
portion souple quand l'etat deforme est atteint. flexible portion when the deformed state is reached.
Quand la portion souple est multiple, les articulations entre segments peuvent etre de duretes differentes afin que les portions souples se deforment When the flexible portion is multiple, the joints between segments can be of different hardness so that the flexible portions are deformed
dans un ordre immuable.in an unchanging order.
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Le train de commande comprend avantageusement une transmission a ecrou et vis: la portion principale comprend alors une vis a une extremite eloignee de l'outil et l'ecrou est un moyen de commande engage sur la vis et tournant a une position fixe de la partie de tige. L' invention sera maintenant decrite au moyen des figures: - la figure 1 est une vue detaillee de la clef, - la figure 2 est une vue de l'extremite de la clef dans un environnement de travail, - la figure 3 est une vue d'une partie souple, - et la figure 4 est une coupe operee a travers The control train advantageously comprises a nut and screw transmission: the main portion then includes a screw at a remote end from the tool and the nut is a control means engaged on the screw and rotating at a fixed position of the part. rod. The invention will now be described by means of the figures: - Figure 1 is a detailed view of the key, - Figure 2 is a view of the end of the key in a working environment, - Figure 3 is a view a flexible part, - and Figure 4 is a section through
une portion souple.a flexible portion.
On passe maintenant a la description detaillee de We now go to the detailed description of
l' invention. La figure 1 represente un mode de realisation de la clef a l'etat deforme, alors qu'elle est droite a l'etat libre. Wile comprend d'abord une gaine 1 a laquelle appartiennent un ecrou molete 2, pouvant comporter des meplats de prehension opposes et un repere angulaire 3 a un endroit de son pourtour, et un tube 4 partant vers le teas dont ltecran molete 2 occupe le sommet. Le tube 4 finis en teas en une portion souple 5, au bout de laquelle un embout de vissage 6 consistent en une douille idoine au boulon a serrer ou desserrer est place. L'outil 6 comprend une collerette 7 en appui sous un palier a butee 34 au bout de la gaine 1 et un embout 8 s'etendant, derriere la the invention. Figure 1 shows an embodiment of the key in the deformed state, while it is straight in the free state. Wile first comprises a sheath 1 to which a knurled nut 2 belongs, which may include opposing gripping flats and an angular mark 3 at a place around its periphery, and a tube 4 extending towards the teas with the knurled screen 2 occupying the top . The tube 4 finished in teas in a flexible portion 5, at the end of which a screwing bit 6 consists of a suitable socket for the bolt to be tightened or loosened is placed. The tool 6 comprises a flange 7 bearing under a thrust bearing 34 at the end of the sheath 1 and a nozzle 8 extending, behind the
collerette 7, dans la gaine 1.flange 7, in the sheath 1.
La portion souple 5 est double de maniere a dessiner deux coudes opposes et prendre une forme d'un The flexible portion 5 is double so as to draw two opposite elbows and take the form of a
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esse a l'etat deforme. Il est utile de se reporter aux figures 3 et 4 pour des explications plus detaillees sur sa constitution: la portion souple 5 a ete fabriquee a partir d'un tube ordinaire dans lequel on a opere une rangee axiale de crans 9 et une rangee d'entailles 10, elle aussi axiale; les crans 9 s 'allongent transversalement a l' axe du tube en ne l'entaillant que legerement, alors que les entailles 10 s'etendent sur la plus grande partie du pourtour du tube, devant les crans 9 respectifs, que leurs bords atteignent presque. De plus, les entailles 10 s'elargissent en s'eloignant des crans 9. Ainsi, une flexion du tube le fait plier facilement autour d' articulations 11 formees par la matiere residuelle entre les crans 9 et les entailles 10; si la courbure referme les entailles 10, elle s'arrete quand les segments 12 de tube qutelles delimitent viennent a se toucher, de sorte que la forme finale du coude est determinee. On a represente a la figure 3 un etat ou l'un des coudes 13 est deja forme alors que la portion souple 5 reste droite a l'autre coude et qui peut correspondre a un etat reel de la clef, intermediaire dans son mouvement de deformation, ce qu'on peut obtenir si les articulations 11 d'un des coudes 13 vent plus cures que celles de l'autre, si par exemple les crans 9 correspondents vent moins profonds. Les coudes 13 ayant des directions opposees, les crans 9 de chacun esse in a deformed state. It is useful to refer to Figures 3 and 4 for more detailed explanations on its constitution: the flexible portion 5 was made from an ordinary tube in which an axial row of notches 9 and a row of notches 10, also axial; the notches 9 elongate transversely to the axis of the tube by notching it only slightly, while the notches 10 extend over most of the periphery of the tube, in front of the respective notches 9, that their edges almost reach. In addition, the notches 10 widen away from the notches 9. Thus, a bending of the tube makes it easily bend around joints 11 formed by the residual material between the notches 9 and the notches 10; if the curvature closes the notches 10, it stops when the segments 12 of tube which they delimit come to touch, so that the final shape of the elbow is determined. There is shown in Figure 3 a state where one of the elbows 13 is already formed while the flexible portion 5 remains straight at the other bend and which may correspond to a real state of the key, intermediate in its deformation movement , which can be obtained if the joints 11 of one of the elbows 13 are more cured than those of the other, if for example the corresponding notches 9 are less deep. The elbows 13 having opposite directions, the notches 9 of each
vent dans le prolongement des entailles 10 de l'autre. wind in the extension of the notches 10 of the other.
Enfin, on relevera que les segments 12 portent des dents 14 saillant dans les entailles 10, et qui se logent dans des alveoles 15 respectifs du segment 12 Finally, it will be noted that the segments 12 carry teeth 14 projecting into the notches 10, and which are housed in respective cells 15 of the segment 12
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voisin quand les entailles 10 se referment. Grace a cette disposition, la portion souple 5 acquiert une bonne resistance a la torsion quand elle est a l'etat neighbor when the notches 10 close. Thanks to this arrangement, the flexible portion 5 acquires good resistance to torsion when it is in the state
deforme et que l'outil 6 sera utilise. deformed and that tool 6 will be used.
La gaine 1 comprend encore un manchon 29 s'etendant au-dessus de l'ecrou molete 2, et un tube de protection 16, termine par une collerette 17 a son The sheath 1 further comprises a sleeve 29 extending above the knurled nut 2, and a protective tube 16, terminated by a flange 17 at its
sommet, dans lequel le tube 4 coulisse. top, in which the tube 4 slides.
Une deuxieme partie de la clef est un train de vissage 18 s'etendant essentiellement entre ltoutil 6 et un ecrou 19 pose sur une bague d'appui 20 de l'ecrou molete 2. Il comprend un arbre de transmission 21 engage dans l'ecrou 19, un tube interne 22 prolongeant la vis 21 vers le teas et tournant dans le tube 4, et un jonc souple 23 tubulaire, fixe par ses bouts au tube interne 22 et a l'outil 6, qui traverse toute la A second part of the key is a screw train 18 extending essentially between the tool 6 and a nut 19 placed on a support ring 20 of the knurled nut 2. It comprises a drive shaft 21 engaged in the nut 19, an internal tube 22 extending the screw 21 towards the teas and rotating in the tube 4, and a flexible tubular rod 23, fixed by its ends to the internal tube 22 and to the tool 6, which crosses the entire
longueur de la portion souple 5 de la gaine 1. length of the flexible portion 5 of the sheath 1.
L'arbre de transmission 21 etant ajuste dans l'ecrou 19 par une section carree, une rotation de l'ecrou 19 fait tourner tout le train de vissage jusqu'a l'outil 6 et assure ainsi le travail demande a la clef. Le jonc 23 rigide en torsion est guide par le The transmission shaft 21 being adjusted in the nut 19 by a square section, a rotation of the nut 19 rotates the entire screwing gear up to the tool 6 and thus ensures the work required of the key. The rigid rod 23 in torsion is guided by the
palir a butee 34.to pali at stop 34.
Le dernier element principal de la clef est un train de commande 24 dont la piece essentielle est un cable 25 parcourant tout l'interieur de la gaine 1 depuis l'outil 6 jusqu'a une vis 26 surmontant le manchon 15. Un ecrou 27 est engage autour de la vis 26 et pose sur une bague 28 couronnant le manchon 29. Le cable 25, souple partout, l'est notamment a travers la portion 5 de la gaine. Sa traction est operee par la The last main element of the key is a control train 24, the essential part of which is a cable 25 traversing the entire interior of the sheath 1 from the tool 6 to a screw 26 surmounting the sleeve 15. A nut 27 is engages around the screw 26 and places on a ring 28 crowning the sleeve 29. The cable 25, flexible everywhere, is in particular through the portion 5 of the sheath. Its traction is operated by the
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rotation de l'ecrou 27, qui eleve la vis 26. Comme le bout du cable 25 est attache a l'embout 8, l'outil 6 est tire par le cable 25, et la rondelle 7 souleve, en la faisant flechir, la portion souple 5 de la gaine 1 d'abord a un des coudes 13, puis a l'autre. Le cable 25 suit les mouvements de flexion du jonc 23, qu'il traverse. La portion souple 5 devient parfaitement rotation of the nut 27, which raises the screw 26. As the end of the cable 25 is attached to the end piece 8, the tool 6 is pulled by the cable 25, and the washer 7 is lifted, making it bend, flexible portion 5 of the sheath 1 first at one of the elbows 13, then at the other. The cable 25 follows the bending movements of the rod 23, which it crosses. The flexible portion 5 becomes perfectly
rigide une fois que les entailles 10 se vent fermees. rigid once the notches 10 are closed.
On se reporte maintenant a la figure 2 pour l'examen d'une application envisagee avec la clef. Il s'agit du resserrage periodique de boulons 35 de verrouillage d'aubes 36 de rotor dont les pieds 37 vent engages dans une gorge 38; ces boulons 35 arretent les mouvements angulaires des aubes 36 le long des gorges 38. La clef est introduite dans un trou endoscopique 39 menage a travers le carter 40 de la machine et la collerette 17 du tube de protection 16 s'appuyant sur le bossage entourant le trou endoscopique 39. On regle la position angulaire de la clef grace au repere 3, on deforme la clef en agissant sur l'ecrou 27 pour lui faire prendre la forme courbee, ou l'outil 6 est deplace entre les aubes 36 du rotor et des aubes 41 du stator et se place devant le boulon 35 a resserrer; la clef est ensuite descendue jusqu'a ce que l'outil 6 coiffe le boulon 35, et la rotation de l'ecrou 19 opere We now refer to FIG. 2 for the examination of an application envisaged with the key. This is the periodic tightening of bolts 35 for locking rotor blades 36, the feet 37 of which are engaged in a groove 38; these bolts 35 stop the angular movements of the blades 36 along the grooves 38. The key is introduced into an endoscopic hole 39 made through the casing 40 of the machine and the flange 17 of the protective tube 16 resting on the surrounding boss the endoscopic hole 39. We adjust the angular position of the key thanks to the reference 3, we deform the key by acting on the nut 27 to make it take the curved shape, or the tool 6 is moved between the blades 36 of the rotor and stator vanes 41 and is placed in front of the bolt 35 to be tightened; the key is then lowered until the tool 6 covers the bolt 35, and the rotation of the nut 19 operates
le resserrage souhaite.tightening wishes.
Les operations peuvent etre suivies a partir d'un autre trou endoscopique non represente, dans lequel on fait passer une fibre optique ou une autre source d'eclairage; dans une variante de l' invention non The operations can be followed from another non-represented endoscopic hole, through which an optical fiber or another source of lighting is passed; in a variant of the invention not
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representee, une fibre optique pourrait etre portee par la clef elle-meme pour eclairer ou faire voir la scene; la fibre pourrait etre fixee sur le tube 4 et la portion souple 5 en passant dans le tube de protection 16. La deformation en forme d'un esse de la portion souple 5 se justifie pour deplacer lateralement l'outil 6 tout en le maintenant oriente vers le teas a la position finale. D'autres formes d'etat deforme pourront etre proposees pour les clefs selon l' application envisagee. De meme, la construction de la portion souple 5 provenant d'un tube n'est pas obligatoire et pourrait etre remplacee par un empilement de rondelles biseautees, distinctes mais reunies par deux fils flexibles a ressorts opposes. Le fonctionnement serait le meme: une traction sur le cable 25 ferait basculer les rondelles en ferment les entailles les separant; les fils flexibles feraient reprendre son etat d'origine a la clef des que le cable 25 serait relache. D'une facon generale, tout arrangement de segments empires, articules entre eux a une portion de tour et separes ailleurs sur le trou devrait convening represented, an optical fiber could be carried by the key itself to illuminate or show the scene; the fiber could be fixed on the tube 4 and the flexible portion 5 passing through the protective tube 16. The deformation in the form of a esse of the flexible portion 5 is justified for laterally displacing the tool 6 while keeping it oriented towards the teas at the final position. Other forms of deformed state could be proposed for the keys according to the envisaged application. Likewise, the construction of the flexible portion 5 coming from a tube is not compulsory and could be replaced by a stack of bevelled washers, distinct but joined by two flexible wires with opposite springs. The operation would be the same: a pull on the cable 25 would tilt the washers and close the notches separating them; the flexible wires would restore their original state to the key as soon as the cable 25 is released. Generally, any arrangement of empire segments, articulated between them to a portion of a tower and separated elsewhere on the hole should be
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Claims (8)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR0207607A FR2841166B1 (en) | 2002-06-20 | 2002-06-20 | TIGHTENING WRENCH WITH FLEXIBLE ROD |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR0207607A FR2841166B1 (en) | 2002-06-20 | 2002-06-20 | TIGHTENING WRENCH WITH FLEXIBLE ROD |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2841166A1 true FR2841166A1 (en) | 2003-12-26 |
| FR2841166B1 FR2841166B1 (en) | 2004-07-30 |
Family
ID=29719896
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR0207607A Expired - Lifetime FR2841166B1 (en) | 2002-06-20 | 2002-06-20 | TIGHTENING WRENCH WITH FLEXIBLE ROD |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR2841166B1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009032387A2 (en) * | 2007-08-15 | 2009-03-12 | General Electric Company | Manual core rotation device |
| GB2466770A (en) * | 2008-12-30 | 2010-07-07 | Jin-Tsai Lai | Insulating hand tool with flexible core |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2814224A (en) * | 1954-11-19 | 1957-11-26 | Frank L Allard | Remotely controlled ratchet wrench |
| US3203285A (en) * | 1963-12-05 | 1965-08-31 | Schmidt Edward | Selectively adjustable rigid handle for wrenches or the like |
| US3585885A (en) * | 1969-11-21 | 1971-06-22 | Harry A Carr | Adjustable tool handle |
| EP0359543A2 (en) * | 1988-09-15 | 1990-03-21 | Burton Kozak | Flexible extension shaft for a screwdriver |
| FR2692511A1 (en) * | 1992-06-18 | 1993-12-24 | Snecma | Folding wrench for tightening bolts. |
| DE4338748A1 (en) * | 1993-11-12 | 1995-05-18 | Sumflex Co | Manual rotary tool with actuating force transmission shaft |
-
2002
- 2002-06-20 FR FR0207607A patent/FR2841166B1/en not_active Expired - Lifetime
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2814224A (en) * | 1954-11-19 | 1957-11-26 | Frank L Allard | Remotely controlled ratchet wrench |
| US3203285A (en) * | 1963-12-05 | 1965-08-31 | Schmidt Edward | Selectively adjustable rigid handle for wrenches or the like |
| US3585885A (en) * | 1969-11-21 | 1971-06-22 | Harry A Carr | Adjustable tool handle |
| EP0359543A2 (en) * | 1988-09-15 | 1990-03-21 | Burton Kozak | Flexible extension shaft for a screwdriver |
| FR2692511A1 (en) * | 1992-06-18 | 1993-12-24 | Snecma | Folding wrench for tightening bolts. |
| DE4338748A1 (en) * | 1993-11-12 | 1995-05-18 | Sumflex Co | Manual rotary tool with actuating force transmission shaft |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009032387A2 (en) * | 2007-08-15 | 2009-03-12 | General Electric Company | Manual core rotation device |
| WO2009032387A3 (en) * | 2007-08-15 | 2009-05-28 | Gen Electric | Manual core rotation device |
| US7866234B2 (en) | 2007-08-15 | 2011-01-11 | General Electric Company | Manual core rotation device |
| GB2466770A (en) * | 2008-12-30 | 2010-07-07 | Jin-Tsai Lai | Insulating hand tool with flexible core |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2841166B1 (en) | 2004-07-30 |
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