EP1216120B1 - Outil d'entrainement en rotation pour un organe de vissage - Google Patents
Outil d'entrainement en rotation pour un organe de vissage Download PDFInfo
- Publication number
- EP1216120B1 EP1216120B1 EP00960781A EP00960781A EP1216120B1 EP 1216120 B1 EP1216120 B1 EP 1216120B1 EP 00960781 A EP00960781 A EP 00960781A EP 00960781 A EP00960781 A EP 00960781A EP 1216120 B1 EP1216120 B1 EP 1216120B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- head
- component
- rotation
- tool according
- manoeuvring
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
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
- B25B23/00—Details of, or accessories for, spanners, wrenches, screwdrivers
- B25B23/14—Arrangement of torque limiters or torque indicators in wrenches or screwdrivers
- B25B23/142—Arrangement of torque limiters or torque indicators in wrenches or screwdrivers specially adapted for hand operated wrenches or screwdrivers
- B25B23/1422—Arrangement of torque limiters or torque indicators in wrenches or screwdrivers specially adapted for hand operated wrenches or screwdrivers torque indicators or adjustable torque limiters
- B25B23/1427—Arrangement of torque limiters or torque indicators in wrenches or screwdrivers specially adapted for hand operated wrenches or screwdrivers torque indicators or adjustable torque limiters by mechanical means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B13/00—Spanners; Wrenches
- B25B13/02—Spanners; Wrenches with rigid jaws
- B25B13/08—Spanners; Wrenches with rigid jaws of open jaw type
Definitions
- the invention relates to a rotational drive tool for an organ screwing device, in particular a hand tool, of the type comprising a head presenting minus two gripping surfaces for driving the screwing member by complementarity, at least partial of form, and means of training in rotation of the head, the head behaving overall like a piece monobloc when driving in rotation of a screw member, the head comprising a bonding region of the gripping surfaces and parts of transmission to the gripping surfaces of a rotational force applied to the means of training, the connecting region being situated between the parts of transmission of effort and grip surfaces.
- the invention applies, for example, to open-end wrenches.
- the head of such a key has two open rigid jaws which each have a gripping surface for a screw member such as a nut.
- the two gripping surfaces are facing each other.
- the phenomenon therefore limits the value of couples that can be transmitted by such a fork open key.
- This phenomenon is present from generally in the tools that do not allow, unlike by clamp pliers for example, clamping of the socket surfaces independent of the drive in rotation.
- the invention aims to solve this problem by providing a tool of the aforementioned type allowing, for example, to exert on a screwdriver increased couples.
- the subject of the invention is a tool of the aforementioned type, characterized in that the head is adapted so that the action of the drive means in rotation on the force transmission parts tends to deform elastically the geometry of the head to bring the gripping surfaces closer to one another when applying through the means of training a training effort in rotation of a screwing member.
- head having at least two gripping surfaces for to rotate a screwing member by complementarity at least partial form "a head allowing the training of such an organ that their respective shapes, such as polygonal shapes, do not allow relative rotation.
- the head also behaves functionally overall as a single piece of stiffness large enough for that, when used, the functional geometry of the head remains generally unchanged, except under the effect of deformation in charge and the compensation thereof according to the invention as will be described later.
- FIG. 1 illustrates a flat open end wrench 1 ready to drive a nut 2 in rotation.
- the key 1 essentially comprises a head 4 and a separate handle 5.
- the head 4 which can be made of a less powerful material than steel and in particular of modulus of elasticity lower than 150 GigaPascal, has a H-shaped and comprises two rectilinear branches 6 longitudinal with respect to a central axis X-X.
- the branches 6 are interconnected by a core 7 central and transverse.
- Each branch 6 includes on both sides of the soul 7 a distal end region 8 (left in Fig. 1), and a region proximal end 9.
- the core 7, integral with the branches 6, is relatively thin and elastically deformable at least in flexion.
- the distal end regions or jaws 8 each have a flat surface 10 of engagement with the nut 2.
- the gripping surfaces 10 are oriented towards the inside of the head 4 and face each other.
- the core 7 because of its possibility of deformation, forms a means of orientation branches 6 one compared to each other.
- branches 6 are movable in rotation relative to each other in the plane of Figures 1 and 4, on either side of a rest position, such represented in solid lines in FIG. 1 and in dashed lines in FIG.
- This rest position corresponds to the case where no force is applied 6.
- the branches are parallel to each other and parallel to the X-X axis.
- the distal end 8 and proximal 9 regions can therefore respectively approaching and departing by bending deformation of the core 7.
- branches 6 are movable between their rest position and a position in which their distal end regions 8 are brought together ( Figure 4) while their proximal end regions 9 are separated one the other.
- the handle 5 is an elongated bar of axis Y-Y and has a transversal dimension slightly less than the spacing between the two proximal end regions 9 of the branches 6.
- the distal end region 12 of the handle 5 is received at low clearance between the proximal end regions 9 of the branches 6.
- the nut 2 is a hex nut received between the end regions distal 8 branches 6.
- the gripping surfaces 10 of the head 6 are located in facing two opposite sides of the nut 2.
- the head 4 has, by its surfaces of 10, a shape partially complementary to that of the nut 2.
- the handle 5 is rotatable relative to the head 4 in the plane of Figure 1, on either side of its rest position, between two positions spacing branches 6 illustrated respectively in Figures 2 and 3.
- the handle 5 has pivoted relative to the head 6 in the direction 14 of the nut 2.
- the distal end region 12 of the handle 5 takes then support at a point 15 on the free end of the lower branch 6 (on the FIG. 2) of the head 4, and at a point 16 adjacent to the core 7 on the other branch 6.
- Points 15 and 16 are spaced apart longitudinally along the X-X axis.
- the X-X and Y-Y axes are then also inclined relative to the other.
- the handle 5 has rotated relative to the head 4 in the direction 18 of unscrewing the nut 2.
- the distal end region 12 of the handle 5 then bears in a first point 15 on the upper branch 6 (in FIG. 3) of the head 4 and in a second point 16 on the other branch 6 of the head 4.
- the fulcrums 15 and 16 then have a relative longitudinal position similar to that of points 15 and 16 of the Figure 2.
- the X-X and Y-Y axes are then also inclined with respect to the other.
- the operating mode of the key 1 is as follows.
- the handle 5 then reaches the position of FIG. 2 and drives the head 4 in rotation in the direction 14. A tightening torque is therefore applied to the nut 2 due to the partial complementarity of shape between the head 4 and the nut 2.
- the proximal end regions 9 then form stress transmission parts from the handle 5 to the gripping surfaces 10 and thus to the nut 2.
- the handle 5 plays, thanks to the two support points 15 and 16 shifted longitudinally, the role of a lever of the first order and tends to remove the proximal end regions 9 of the branches 6 of the head 4.
- distal end regions 8 of these branches 6 tend to closer. This effect tends to offset the tendency to widen distal end regions 8 of the branches 6 and therefore to limit the relative rotation the nut 2 with respect to the head 4.
- the handle 5 when applying a force 24 of unscrewing the nut 2 on the proximal end 21 of the handle 5, the handle 5 takes the position illustrated in Figure 3 and tends on the one hand to drive the nut 2 in the direction of rotation 18 and, secondly, to bring the regions closer together through distal end 8 of the branches 6.
- the key 1 allows, in both directions of training, to limit the rotation between the nut 2 and the head 4 and also the risk of bursting of the head 4.
- the key 1 allows the transmission of couples more important that a conventional open-end wrench.
- key 1 allows to access a screw member as easily as a spanner classic.
- Key 1 of FIG. 5 differs from that of FIGS. 1 to 4 in that that the head 4 and the handle 5 are no longer separated but connected by a blade longitudinal 26 material coming with the soul 7 of the head 4 and the region distal end 12 of the handle 5.
- This blade 26 can be deformed, for example in flexion, so that it form between the head 4 and the handle 5 a flexible connection allowing the latter to pivot relative to the head 4 to take the positions shown on the Figures 2 and 3.
- the proximal end regions 9 of the head 4 comprise four inner beads 27 arranged in pairs on these regions 9.
- the beads 27 of the same region 9 are spaced from each other and face the beads 27 of the other region 9.
- These beads 27 form support reliefs of the handle 5 on the proximal end regions 9 when the handle 5 will take, relative to the head 4, the positions of Figures 2 and 3. Note that in the rest position represented in FIG. 5, the four beads 27 are practically at contact of the handle 5.
- the blade 26 may not have come of material both with the head 4 and the handle 5, but fixed by welding to the head 4 and / or handle 5.
- the blade 26 is replaced by a elastomer insert, made integral with both the head 4 and the sleeve 5 by means known per se (mechanical means or overmolding by injection, for example).
- the head 4 comprises bearing reliefs of 5 against the proximal end regions 9 of the branches 6, namely a pair of beads 28 and a pair of pins 29. These reliefs protrude from the branches 6 to the distal end region 12 of the handle 5.
- the beads 28, on the one hand, and the pins 29, on the other hand, are arranged opposite. However, according to other variants the beads 28 and the pawns 29 may be arranged otherwise.
- the beads 28 came from each material with the region proximal end 9 of a branch 6 and are further from the central core 7 that the pawns 29.
- the pins 29, of cylindrical shape, are each received in a recess 30 formed in the proximal end region 9 of a branch 6.
- the head 4 carries two pairs of recesses 30 which can receive the pins 29 and spaced along the X-X axis.
- the beads 28 and the pins 29 define the points of support of the handle 5 on the head 4 so that it fulfills its role of lever. It is then possible to adjust, by changing the position of the counters 29, the intensity of the trend to the approximation of surfaces 10 induced by a training effort in rotation of a nut 2 applied to the handle 5.
- FIG. 7 illustrates another tool 1 according to the invention that differs from the key in FIGS. 1 to 4 in that the handle has been replaced by an 5 T-shaped maneuver and which thus comprises a transmission bar 32 prolonged torque by a handle 33.
- the distal end region 34 of the actuator 5 is received at weak clearance between the proximal end regions 9 of the branches 6.
- the proximal end regions of the head 4 present four beads 27 of support of the region 34 of the actuating member 5 on the head 4.
- This region 34 has a rectangular section and is provided with a bore transversal 36.
- a transverse pin 37 passes through the two branches 6 and the bore 36.
- This pin 37 connects the operating member 5 and the head 4 in for orienting the operating member 5 relative to the head 4, by rotation about the axis of the pin 37.
- the bar 32 may be located off the plane of the head 4, for example inclined or perpendicular to this plane as shown in Figure 7.
- the clearance between the bore 36 and the pin 37 is sufficiently important for, when in the position of Figure 7 is applied to the handle 33 a torque drive in rotation of a nut, allow the rotation of the bar 32 about its longitudinal axis relative to the head 4.
- the region 34 of the bar 32 then bears on the beads 27 and thus tends to spread by effect cam regions 9 branches 6 to tend to bring the surfaces of taken 10 as before.
- the pin 37 is removable to allow separation the head 4 and the body 5, and thus to connect heads 4 of sizes and shapes different to the actuator 5.
- the handle 5 of the key of FIGS. 1 to 4 has been replaced by the outlet end 40 of a key Dynamometric 41.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
- Manipulator (AREA)
- Gripping On Spindles (AREA)
Description
- la tête est adaptée pour que ladite action des moyens d'entraínement en rotation tende à déformer élastiquement la tête,
- les moyens d'entraínement en rotation de la tête comprennent un organe de manoeuvre de la tête,
- l'organe de manoeuvre de la tête est mobile par rapport à celle-ci pour tendre à rapprocher les surfaces de prise l'une de l'autre, par effet de levier ou de came sur les parties de transmission d'effort, lorsqu'on applique sur l'organe de manoeuvre un effort d'entraínement en rotation d'un organe de vissage,
- la tête a une configuration générale en H et comprend deux branches reliées par une âme centrale, une région distale de chaque branche présentant une des surfaces de prise et les régions proximales des branches formant lesdites parties de transmission d'effort, les deux branches sont mobiles l'une par rapport à l'autre par déformation de l'âme centrale pour rapprocher les surfaces de prise l'une de l'autre par écartement de régions proximales des branches, et une région distale de l'organe de manoeuvre est disposée entre les régions proximales des branches pour les écarter, par effet de levier ou de came, lorsqu'on applique sur l'organe de manoeuvre un effort d'entraínement en rotation d'un organe de vissage,
- l'organe de manoeuvre est relié à la tête par une liaison souple,
- la liaison souple comprend une partie déformable et venue de matière avec la tête et l'organe de manoeuvre,
- l'organe de manoeuvre et la tête sont séparés ou séparables,
- l'outil comprend des moyens amovibles de liaison de la tête et de l'organe de manoeuvre,
- l'organe de manoeuvre est orientable par rapport à la tête,
- l'organe de manoeuvre fait partie d'un outil dynamométrique,
- l'outil comprend des moyens de réglage de la tendance à la déformation de la tête sous ladite action des moyens d'entraínement en rotation,
- la tête comprend deux mâchoires ouvertes qui présentent chacune au moins une des surfaces de prise,
- la liaison souple est réalisée en élastomère.
- la figure 1 est une vue schématique en plan d'une clé plate à fourche selon l'invention, prête à entraíner un écrou en rotation,
- les figures 2 et 3 sont des vues analogues à la figure 1, illustrant la clé lorsqu'un effort de vissage et respectivement un effort de dévissage de l'écrou est appliqué sur son manche,
- la figure 4 est une vue en plan et agrandie de la tête de la clé des figures 1 à 3, illustrant schématiquement l'action sur celle-ci d'une rotation relative du manche de la clé,
- les figures 5 et 6 sont des vues agrandies de dessus illustrant la tête et l'extrémité distale du manche de deux variantes de la clé des figures 1 à 4,
- la figure 7 est une vue schématique en perspective d'un outil selon un autre mode de réalisation de l'invention, et
- la figure 8 est une vue analogue à la figure 1 illustrant encore un autre mode de réalisation de l'invention.
Claims (13)
- Outil (1) d'entraínement en rotation pour un organe de vissage (2), notamment outil à main, du type comprenant une tête (4) présentant au moins deux surfaces de prise (10) pour entraíner l'organe de vissage par complémentarité au moins partielle de forme, et des moyens (5; 41) d'entraínement en rotation de la tête, la tête (4) se comportant globalement comme une pièce monobloc lors de l'entraínement en rotation d'un organe de vissage, la tête comprenant une région (7) de liaison des surfaces de prise et des parties (9) de transmission vers les surfaces de prise d'un effort de rotation appliqué sur les moyens d'entraínement, la région de liaison (7) étant située entre les parties de transmission d'effort (9) et les surfaces de prise (10), caractérisée en ce que la tête (4) est adaptée pour que l'action des moyens d'entraínement en rotation sur les parties de transmission d'effort (9) tende à déformer élastiquement la géométrie de la tête pour rapprocher les surfaces de prise (10) l'une de l'autre lorsqu'on applique par l'intermédiaire des moyens (5 ; 41) d'entraínement un effort d'entraínement en rotation d'un organe de vissage (2).
- Outil selon la revendication 1, caractérisé en ce que les moyens d'entraínement en rotation de la tête comprennent un organe de manoeuvre (5 ; 41) de la tête (4).
- Outil selon la revendication 2, caractérisé en ce que l'organe de manoeuvre (5 ; 41) de la tête (4) est mobile par rapport à celle-ci pour tendre à rapprocher les surfaces de prise (10) l'une de l'autre, par effet de levier ou de came sur les parties de transmission d'effort (9), lorsqu'on applique sur l'organe de manoeuvre (5; 41) un effort d'entraínement en rotation d'un organe de vissage (2).
- Outil selon la revendication 3, caractérisé en ce que la tête (4) a une configuration générale en H et comprend deux branches (6) reliées par une âme centrale (7), une région distale (8) de chaque branche présentant une des surfaces de prise (10) et les régions proximales (9) des branches formant lesdites parties de transmission d'effort, en ce que les deux branches (6) sont mobiles l'une par rapport à l'autre par déformation de l'âme centrale pour rapprocher les surfaces de prise (10) l'une de l'autre par écartement de régions proximales (9) des branches (6), et en ce qu'une région distale (12, 34) de l'organe de manoeuvre (5 ; 41) est disposée entre les régions proximales (9) des branches pour les écarter, par effet de levier ou de came, lorsqu'on applique sur l'organe de manoeuvre (5 ; 41) un effort d'entraínement en rotation d'un organe de vissage (2).
- Outil selon l'une quelconque des revendications 2 à 4, caractérisé en ce que l'organe de manoeuvre (5 ; 41) est relié à la tête par une liaison souple (26).
- Outil selon la revendication 5, caractérisé en ce que la liaison souple comprend une partie (26) déformable et venue de matière avec la tête (4) et l'organe de manoeuvre (5 ; 41).
- Outil selon l'une quelconque des revendications 1 à 5, caractérisé en ce que l'organe de manoeuvre (5 ; 41) et la tête (4) sont séparés ou séparables.
- Outil selon la revendication 7, caractérisé en ce qu'il comprend des moyens amovibles (37) de liaison de la tête (4) et de l'organe de manoeuvre (5).
- Outil selon l'une quelconque des revendications 2 à 4, 7 et 8, caractérisé en ce que l'organe de manoeuvre (5 ; 41) est orientable par rapport à la tête (4).
- Outil selon l'une quelconque des revendications précédentes, caractérisé en ce que l'organe de manoeuvre fait partie d'un outil dynamométrique (41).
- Outil selon l'une quelconque des revendications précédentes, caractérisé en ce qu'il comprend des moyens (29, 30) de réglage de la tendance à la déformation de la tête (4) sous ladite action des moyens (5; 41) d'entraínement en rotation.
- Outil selon l'une quelconque des revendications précédentes, caractérisé en ce que la tête comprend deux mâchoires ouvertes (8) qui présentent chacune au moins une des surfaces de prise (10).
- Outil selon les revendications 5 et 12 prises en combinaison, caractérisé en ce que la liaison souple est réalisée en élastomère.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9912086 | 1999-09-28 | ||
FR9912086A FR2798876B3 (fr) | 1999-09-28 | 1999-09-28 | Outil d'entrainement en rotation pour un organe de vissage |
PCT/FR2000/002427 WO2001023145A1 (fr) | 1999-09-28 | 2000-09-01 | Outil d'entrainement en rotation pour un organe de vissage |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1216120A1 EP1216120A1 (fr) | 2002-06-26 |
EP1216120B1 true EP1216120B1 (fr) | 2005-03-30 |
Family
ID=9550322
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP00960781A Expired - Lifetime EP1216120B1 (fr) | 1999-09-28 | 2000-09-01 | Outil d'entrainement en rotation pour un organe de vissage |
Country Status (7)
Country | Link |
---|---|
US (1) | US6557441B1 (fr) |
EP (1) | EP1216120B1 (fr) |
AT (1) | ATE291991T1 (fr) |
AU (1) | AU7297000A (fr) |
DE (1) | DE60019140T2 (fr) |
FR (1) | FR2798876B3 (fr) |
WO (1) | WO2001023145A1 (fr) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2952179B1 (fr) * | 2009-10-30 | 2012-06-01 | Peugeot Citroen Automobiles Sa | Outillage permettant la mesure du jeu des differentes rotules presentes sur un train de vehicule, et procede de controle du jeu de rotules utilisant un tel outillage |
US9259825B2 (en) * | 2013-02-06 | 2016-02-16 | Grace Engineering Corp. | Torque wrench for archery broadheads and fasteners |
US9347162B1 (en) * | 2013-11-21 | 2016-05-24 | Ronald R. Pitts | Fabric seam alignment tool |
DE102020106888A1 (de) * | 2020-03-13 | 2021-09-16 | Grohe Ag | Werkzeug zur Betätigung eines Einstellorgans einer Sanitärarmatur |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1218576A (en) * | 1916-05-06 | 1917-03-06 | Howard W Hall | Pipe-wrench. |
US1361923A (en) | 1920-03-05 | 1920-12-14 | William M Stovall | Wrench |
US1619744A (en) * | 1921-03-28 | 1927-03-01 | Paul J Mccloskey | Mechanic's fishing tool |
FR592653A (fr) | 1924-11-17 | 1925-08-06 | Clé à pédale | |
CH136845A (de) | 1928-02-07 | 1929-11-30 | Emil Klingler Johann | Schraubenschlüssel. |
GB618203A (en) | 1945-11-02 | 1949-02-17 | George Thomas Logan | Improvements in wrench construction |
US2594154A (en) | 1950-03-22 | 1952-04-22 | John J Greer | Wrench having pivotable jaws cammed by pivoting handle |
US2886998A (en) | 1957-07-12 | 1959-05-19 | George W Scott | Joint for an angularly adjustable wrench head |
GB8812527D0 (en) | 1988-05-26 | 1988-06-29 | Bantex Ltd | Improvements in & relating to fitting of aerials |
US5464421A (en) * | 1991-06-14 | 1995-11-07 | Surgin Surgical Instrumentation, Inc. | Hemorrhage occluder, applicator and method |
US5365809A (en) * | 1993-11-05 | 1994-11-22 | Hsiao Chia Yuan | Adjustable spanner |
US5699701A (en) * | 1996-05-07 | 1997-12-23 | Cotten, Jr.; David L. | Tool for removing vehicle gas tank cap |
-
1999
- 1999-09-28 FR FR9912086A patent/FR2798876B3/fr not_active Expired - Lifetime
-
2000
- 2000-09-01 AU AU72970/00A patent/AU7297000A/en not_active Abandoned
- 2000-09-01 DE DE60019140T patent/DE60019140T2/de not_active Expired - Lifetime
- 2000-09-01 AT AT00960781T patent/ATE291991T1/de not_active IP Right Cessation
- 2000-09-01 WO PCT/FR2000/002427 patent/WO2001023145A1/fr active IP Right Grant
- 2000-09-01 EP EP00960781A patent/EP1216120B1/fr not_active Expired - Lifetime
- 2000-09-01 US US10/088,410 patent/US6557441B1/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
AU7297000A (en) | 2001-04-30 |
DE60019140D1 (de) | 2005-05-04 |
US6557441B1 (en) | 2003-05-06 |
FR2798876A1 (fr) | 2001-03-30 |
EP1216120A1 (fr) | 2002-06-26 |
FR2798876B3 (fr) | 2001-12-14 |
ATE291991T1 (de) | 2005-04-15 |
WO2001023145A1 (fr) | 2001-04-05 |
DE60019140T2 (de) | 2006-02-09 |
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