EP3043966A1 - Mecanisme de blocage/deblocage d'une cle dynamometrique - Google Patents
Mecanisme de blocage/deblocage d'une cle dynamometriqueInfo
- Publication number
- EP3043966A1 EP3043966A1 EP14767091.3A EP14767091A EP3043966A1 EP 3043966 A1 EP3043966 A1 EP 3043966A1 EP 14767091 A EP14767091 A EP 14767091A EP 3043966 A1 EP3043966 A1 EP 3043966A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- pusher
- translation
- housing
- actuator
- sleeve
- 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
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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
- 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
- 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
- B25B23/1425—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 electrical means
Definitions
- the present invention relates to a trigger mechanism (and reclosing, together "trigger” for simplification) of a torque wrench including that allowing a large break.
- the invention also relates to said mechanisms employed in "standard" torque keys of trigger or declutching type.
- torque wrenches are used to apply torque in a controlled manner to a screw connection.
- torque wrenches According to ISO 6789, there are two types of torque wrenches: trigger wrenches and direct reading wrenches.
- the invention relates more specifically to the category of torque wrenches trigger, hereinafter "key”, including the “trigger”: (which causes or authorizes the “breaking" of the head of the tool relative to the body, that is to say that the "head” fork and its “fork” (part ensuring the clamping itself by action on / around the workpiece) (hereinafter together “head” unless otherwise specified) form after the (and because of) triggering, and through a rotation of the head around a “pivot” incorporated in the head, directly or indirectly secured to the body, a certain “angle” called “break” with respect to their initial alignment that is to say, with respect to the longitudinal axis of the key in the engaged position, also called “key rigid “: this” break “makes the force of the operator ceases to be applied to the workpiece) is controlled in a manner known generally by a” actuator “mechanical or electro-mechanical, itself” piloted “”In the most recent technical developments by an” electronic Worn in general by, on or in the handle or
- the said trip must be as instantaneous as possible, that is to say, intervene as soon as possible after the gauge has detected the moment when the target torque was applied. Since the gauge sends a signal to the electronics which itself causes the action of the actuator which itself triggers, there is always a tiny interval of time between when the torque set point is applied and the moment the key triggers (ie where the break occurs). It is imperative that this time interval be as small as possible, that is, close to zero. We will designate here this imperative, for the sake of simplicity of which the person skilled in the art will know perfectly the context, by the term "instantaneous".
- the head and the body of the key are arranged along a common longitudinal axis.
- the "tilt system keys” are made in such a way that the clearance is small. Thus, when the torque is reached, the mechanical balance of the system is broken, the mechanism “tilts” and quickly finds a point of equilibrium. The operator perceives the triggering by a sensation or "feeling” in the hand but must demonstrate a great reactivity to release the force applied on the handle.
- the "bending bar keys” have the same disadvantages as the tilting keys.
- the deflection obtained during the "break” corresponds to the length of the deflection of the flexion rod: a few millimeters at most, ie a few degrees of angle at most.
- the tilting or bending keys have good accuracy and resistance over time (> 50,000 cycles). Their capacity varies from 1 Nm to more than 1000 Nm depending on the models. But their break angle is very low, hence the risk of over-tightening.
- the "clutch release keys” make it possible to overcome over-tightening phenomena.
- these keys are constituted such that when the prescribed torque is reached, the roller (maintained or pressurized by a spring or other mechanical or electro-mechanical means that keeps the system "rigid", this word meaning that the pressure operated by the operator on the body of the tool is transmitted to the part to be tightened) backs along a path controlled by a mechanical means such as a groove etc., which releases the "head” which becomes free to rotate around its " pivot, the key triggers, and the roller is positioned on the following sector: what is called the disengagement. If a torque is reapplied, the key will disengage in the same way at the same torque value. The operator easily feels the release of the key that allows a large travel: between 60 and 90 ° depending on the model.
- the release keys have less accuracy and less reliability in the time. This is related to the dynamics of the system and the high friction (roller / cam contact) involved in the system. Their capacity varies from 1 Nm to 125 Nm.
- Disengageable electronic keys are also known, incorporating the architecture of a disengageable key but whose clutch / cam system is replaced by a clutch.
- This solution consisted in integrating strain gauges to measure the torque and by means of an electronic card servocontrolled by said gauge, to control a clutch (itself driven by said card, that is to say in fact by the "correct torque reached” signal emitted by said strain gauge to said electronic card) to separate the driving square of the lever arm when the torque is reached.
- JENKINS US Pat. No. 6,526,853 and WILLE Patent No. 1,837,126 are known in this field. These two systems operate on the same principle: strain gauges stuck on the head of the key forming a sensor make it possible to measure the applied torque.
- a mechanical tilt system, controlled by an actuator, makes it possible to make or not the rigid key.
- the actuator is powered by a gauge and a card to stop providing the force needed to maintain the rigid system (or position engaged).
- a solenoid and piston is actuated, when the prescribed torque is reached, to release the pressure with a deflection angle that is only a few degrees, 4 - 6 °.
- REMINDER According to the invention described in said earlier application SAM, and as shown (as a reminder and technological background) in Figure 1 attached, the invention relates to a torque wrench whose head, shown generally under the reference (1) is "deported" out of the body (7) of the tool. This is represented by the dotted "T" which schematically represents the place occupied by the head (1) relative to the body (7).
- the present invention also applies mutatis mutandis to actuators housed in "standard” torque wrenches type trigger or release.
- the transposition is simple and obvious, and often even the actuator according to the present invention can be applied directly to these "standard” keys, and therefore will not be particularly described here.
- the "body” of such a key is, in a known manner, the part or set of parts that contains / contain the locking / unlocking mechanisms or “trigger”; this body often forms the handle by which the technician maneuvers the key.
- FIG. 2 (also from said earlier application SAM, as a reminder and technological background) is shown a schematic sectional view of the invention of said prior SAM request. It is clearly seen that the head (1) is offset by the very forward position of the pivot (3). This represents the best mode of application for the systems, mechanisms and actuators of the present invention.
- the "pivot piece” (10) actually covers the head from its “rear” end (opposite the part to be clamped) to beyond the pivot 3 and just before the throat carrying the strain gauge (12).
- this pivot piece (10) slides the "slide” (11) which, according to this preferred embodiment, blocks the roller (9) in the rear end of the fork carrier (3) of the head (1), door fork which is cam-shaped (8).
- pivot piece (10) is preferably crimped around the "handle” itself (16) but the handle can also serve as a pivot piece.
- the Applicant has sought to significantly improve certain mechanical aspects to implement the general means of the previous SAM request, and to improve the particular technical means of locking / triggering torque wrenches, of the type large break (15 - 25 ° for example) or "standard" type with low breakage and disengageable (4 - 7 ° for example).
- the technical problem was to design a torque wrench trigger system, including an actuator, using simple technical means,
- “Fail-safe” ie without risk of failure or failure
- almost “fail-safe” thus allowing safe and with a minimum of maintenance (less risk of wear of parts etc.), if possible less moving parts, and less effort on said parts, seeking to reduce the power consumption, and the weight of the system, and, when the target torque (i.e., the pre-set optimum torque) is reached, to "instantaneously" unlock the head locking means (generally a roller as described in a non-known manner).
- a horizontal line over hatching is a mechanical symbol meaning that the part concerned is mounted FIXED, while an arrow right or respectively curved describes a movement of the part in translation or respectively in rotation, or the application on a given part of a force such as the force (FS).
- Two arrows ⁇ - ef -> superimposed, straight or curved, indicate that the corresponding part can perform a movement "back and forth” as for example the locking means (200) (in general, a roller, in a known manner), which can move back towards the AR at the trigger, then return to its initial position towards the AV under the action of the return means (450) of the pusher (300) when the key is re-latched).
- the locking means (200) in general, a roller, in a known manner
- AV, AR, INT and EXT respectively denote FRONT, REAR, INNER and OUTSIDE as shown in an understandable and obvious manner in the accompanying figures.
- the movement of all the moving parts of the mechanism of the invention will be considered to be "reciprocal”, that is to say that a movement in one direction, for example when triggering, is associated inverse movement (reclosing) exactly reciprocal (the two paths are superimposed) in the reverse direction; this is by recall means described either by the reclosing movement performed after each tightening cycle by the operator, or by a combination of both (recall means and the operator's gesture).
- the present invention relates according to its general means diagrammatically shown in Figure 3 attached a mechanism for triggering and reclosing torque wrench, for mounting in the body (900) of a torque wrench, and comprising: a locking / unlocking mechanism d a means (200) for locking the head (100) for clamping the torque wrench with respect to the body (900) of the key, generally a roller, said mechanism, characterized in that it comprises: an "actuator" represented overall by (500, 600),
- - (600) representing a known power source, adapted to, and adapted to actuate the mechanical actuator (500), said locking means (200) of the head being held in rigid key position by a pusher (300) exerting by its own blocking a force of AR in EV, and being provided with a means of return in longitudinal translation (350), push which opposes the force (FS) that the head exerts from AV to AR on said blocking means (200) said sliding pusher in said body along the longitudinal axis XX of the body of the key, and characterized in that it comprises a trigger system of the "actuator" type generally (500), (600)
- movable means (400) for blocking said pusher in longitudinal translation along the longitudinal axis XX of the key at rest, means which, by radial translation to the INT or ⁇ , engage (if their movement is directed towards TINT) or release (if their movement is directed towards ⁇ ) the trajectory> AR and back AV ⁇ in longitudinal translation of said pusher in said body, said radial translation means (400) causing when tripping (means (400) in the "radial EXT" position, ie "clear of said path"), the AR face of the pusher from the position (310) to the position (320) further back, which allows the head (100) to expel its locking means (200) and to trigger, and the return means (350) returning after triggering the pusher in position (310) which re-engages the key while reducing the means of locking (400) in "radial INT” position "engaged s in said path ", which blocks the push again (300) and the locking means (
- the present invention therefore relates to a mechanism for triggering and reclosing torque wrench, for mounting in the body (900) of a torque wrench, and comprising: a locking / unlocking mechanism of a locking means (200) for the torque wrench head (100) with respect to the key body (900), generally a roller, said mechanism being characterized in that it comprises: an "actuator" represented overall by (500, 600),
- said torque wrench is of the type allowing a large breakage in that its head is offset in front of the body of the key.
- said means (400) are one or more balls, preferably two or three or four to six balls, preferably three balls.
- said locking means (400) are transversely placed rollers or truncated cones, preferably two or three such rollers or truncated cones, or 4 to 6, preferably three such conical rolls or truncated cones. .
- the balls or rolls or trunks or other types of movable locking means (400) are preferably distributed in a single transverse plane, or distributed in separate transverse planes. This last provision is much less preferred because more complex.
- said distribution is angularly regular, for example distribution of three balls angularly separated by a circular arc of 120 °.
- said power source (600) is an electric or compressed air motor, a hydraulic or gas cylinder, and the like, and is powered by batteries, or a compressed gas cartridge, and / or hydraulic fluid, etc., in a known manner.
- Said actuator comprises a bushing (F) coaxial with the body (900) and movable in translation and / or rotation (thus in translation, rotation or helical movement to the AV or the AR) cooperating with a coaxial pusher support at both the pusher and said socket.
- a bushing (F) coaxial with the body (900) and movable in translation and / or rotation (thus in translation, rotation or helical movement to the AV or the AR) cooperating with a coaxial pusher support at both the pusher and said socket.
- “Overall” means that said movement of the actuator (500) and in particular of said sleeve (F) is either an AV / AR translation or a radial translation to ⁇ or TINT, or a combination (helical movement to ⁇ or ⁇ ).
- the return means (350) is a return spring according to the preferred embodiment.
- a mechanism as described functionally above and characterized in that it comprises: inside, and coaxial with the longitudinal axis XX, a pusher (B) (300) ) of generally cylindrical shape, or possibly of octagonal or square or triangular section or the like, capable of sliding longitudinally in the body (F, 900) of the key, which on the one hand undergoes at its end AV (40) the force (FS) transmitted by the head (not shown) to the roller (C) (200) blocking the head and said pusher, with which it is in contact, the force (FS) resulting from the applied torque, with transmission by the head, in known manner, which on the other hand comprises a return spring (G, 350) of the pusher exerting on a portion AV (45) (and / or AR, not shown) of the pusher a restoring force contrary to said thrust; outwardly and adjacent to the outer surface (50) of said pusher, a pusher support A (not shown in Figure 3) fixed
- FIG. 5 (which consists of FIGS. 5a and 5b) shows, for the sake of clarity, an enlargement of the ball / housing portion (L1), (L2) and (L3) (FIG. 5a) and (FIG. ) a schematic presentation of the inner (Ei), median (Em), and outer (Ee) portions of a ball (E, 400), shown in dotted line in FIG. 5a, all drawn from FIG. 4.
- Figure 6 shows in longitudinal section the key corresponding to the mechanism of FIG. 4 above, the two Figures 4 and 6 (and 5a) representing the key in a rigid position that is to say engaged, head locking roller (C, 200) in the locked position by the pusher itself blocked by the balls (E, 400).
- Figure 6 shows a preferred embodiment of the invention in its "rigid key” position.
- an actuator (600) driven by an electronics (700) (itself activated by said signal (S)) actuates an actuator of the link system type (500) (500 (a) and 500 (b)), the movement rods (500 (a) and (b)) around the pivots (500 (c) and 500 (d)) being adapted in kinematics, geometry and dimensions to cause a thrust of AR to AV of the locking sleeve (F ) (integral with the pivot 500 (d)) which brings the housing (L3) in coincidence with the housing L2, the force applied on the roller (C) by clamping and transmitted to the pusher pushing the latter, which drives the ball (E, 400) towards the housing (L3) and releases the trajectory of the pusher towards the AR, which in turn allows the head locking roller (C) to move back, which in turn allows the head to rotate freely around the pivot (3) (this is the moment of triggering or unlocking the key),
- Figure 6
- said means (500, 600) of action on said locking sleeve (F) comprises means (600) (power source) of the electromechanical / hydraulic type motorized as a motor or a hydraulic or gas cylinder , and means (500) (actuator proper) for transmitting the action of the means (600) to the actuator (500) by mechanical means adapted in kinematics, geometry and dimensions.
- FIG. 7 represents the key according to the invention in longitudinal section, like FIG. 6, but with the mechanism according to the invention in the "triggered” position, also called “roller (C) of blocking of the head (100) in remote position ".
- Figure 7 shows a preferred embodiment of the invention in its "broken key” position.
- an actuator (600) driven by an electronics (700) (itself activated by said signal (S)) actuates a system of links (500) (500 (a) and 500 (b)), the movement of the links ( 500 a and b) around the pivots (500 (c)) and (500 (d)) causing a rearward thrust to AV (symbol "MVT") of the locking sleeve (F) (integral with the pivot (500 ( d))), which causes the housing (L3) to coincide with the housing (L2), the force applied on the roller (C) by the tightening (clamping force (FS)) and transmitted to the pusher pushing it back , which drives the ball (E, 400) towards the housing (L3) and releases the trajectory of the pusher towards the AR, which in turn allows the ga!
- said means (500, 600) of action on said locking sleeve (F) is a motorized electro-mechanical / hydraulic type of means of which a nonlimiting example is given by the means (500 (a) to (d) )) above, motorized and driven as shown.
- "Back” is of course defined with respect to the chosen symbol of AV / AR, the pusher "receding” therefore to the AR, by definition.
- reverse movement of the pusher means "to advance” that is to say movement towards AV.
- FIG. 8 represents, as in FIG. 4, a longitudinal section of the key at the level of the "mechanism” according to the invention, said mechanism being here in the “triggered” position, or “backhead locking roller (C)” or still “broken key”: it is indeed the state of the mechanism shown in Figure 8 attached that allows the trigger or break of the key shown in Figure 7.
- Figure 8 corresponds to the moment when the target torque has been reached, the signal (S) addressed to the electronics (700), which activated the activator (500, 600).
- the activator (500, 600) has caused a sliding movement (or translation) of the locking sleeve (F) towards the AV, the pusher remaining fixed because, at the precise moment and very fleeting of the activation, the force (FS) always applies to the roller (C), which brought the housing (L3) in coincidence with the housing
- the force (FS) applied to the pusher via the head locking roller (C) can then retract in translation or sliding the pusher (B), which can in turn move or expel the pusher blocking means (E, 400), in particular balls as described above, because said means (E, 400) (balls in particular) is mounted free or “floating" in the housings (L1) and (L2) (and now facing (L3)) and is therefore provided with no means of resistance to its displacement towards (L3), the means (E , 400) (in particular, balls) then simultaneously ceasing to engage the trajectory of the pusher (B) which allows the sliding of the pusher to PAR, the roller (C) of head locking can therefore simultaneously move back under the action of the force (FS), which allows the head to eject this roller (C) from its housing (LG) because the force (FS) is greater than the return force of the return means (H, 350) (in particular, a return spring), the head, which is then no longer blocked by the roller (C), then being able to pivot freely around the pivot
- the position of the housing (L3) in the socket (F) will be determined by the amplitude of the movement towards the AV (MVT) of said socket under the action of the actuator (500, 600), said position and said amplitude being coordinated so that (L3) coincides above (L2); the volume and the geometry of the housings (L1), (L2) and (L3) must be defined and coordinated so that the ball (400) (or more generally the blocking means of the pusher (E)) can be in the position of rigid key is housed in L1 + L2 without opposing the movement of the pusher (B) or the bushing (F) and, in the release position, can be easily driven to (L2) and (L3) and be housed entirely in (L2) and (L3) without being able to oppose the movement of the pusher (B) towards the AR; the shape and dimensions of the means (
- FIG. 9 which consists of FIGS. 9a and 9b, is shown in FIG. 9b, which is a cross-sectional view of FIG. 4 according to AA, therefore at the level of the middle of the balls (400).
- This figure details the way the balls are housed, in the engaged state, in the housings (Ll) (not visible because masked by the balls) and (L2), the housing (L3) being offset.
- FIG. 9b which is a cross-sectional view of FIG. 8 along BB, therefore also at the level of the middle of the balls, it has been shown clearly to represent the surfaces (50), (60) and (70), and sees that, at the triggered state, the means (E, 400), here three balls, are housed entirely in the housings (L2) and (L3), thus leaving the pusher (B) free in translation (or sliding along the longitudinal axis XX).
- Figure 10 shows an exploded perspective view of the main parts just described.
- the above covers the first embodiment said "with translation” (of the sleeve (F)) and longitudinal shift of the housing (L3).
- a second embodiment is identical to the previous except that it operates "with rotation” or helical movement (of the sleeve (F)).
- housing (L3) offset longitudinally is replaced by a housing (L4) angularly offset in the plane of the means (E, 400), for example balls (400) chosen as an example.
- Figure 11 perspective view in section, which consists of Figures 11a and 11b, shows: In Figure 11a, the engaged position or rigid key, i.e., the key position during clamping (or at rest) before the set torque has been reached.
- the engaged position or rigid key i.e., the key position during clamping (or at rest) before the set torque has been reached.
- the groove (L4) is in fact identical to the housing (L3) except that, instead of being shifted in translation as (L3), (L4) is angularly offset.
- FIG. 11 shows that if the actuator rotates the bushing (F) as indicated by the rotation of the mark (r) in FIG. 11, the longitudinal groove (L4) angularly offset, or the portion (L5) of the throat longitudinally offset angularly at the balls, will come into coincidence with the upper part of the ball considered: thus, when the actuator rotates the sleeve, the ball (400) is driven by the pusher (B) to the groove (L4 ) or the throat portion (L5), and releases the trajectory of the pusher, exactly according to the same principle as in the "translation" mode.
- helical mode in which the sleeve and its housing (L3), (L4) or (L5) follow a helical movement forward under the action of the actuator, the housing (L3) or (L4) or (L5) being shifted both in translation as in the first mode, and in rotation as in the second mode.
- FIG. 12 which consists of FIGS. 12a and 12b, describes the "rotation" mode as described above in the "translation” mode in FIGS. 4 and 9.
- FIG. 13 which consists of FIGS. 13a, 13b and 13c, shows an actuator acting on the sleeve (F) in rotation with the aid of a motor (M) in direct contact with its axis (800) mechanically connected to the AR of the socket (F).
- M sleeve
- 800 axis
- Figure 13a is an exploded view
- Figure 13b is a perspective view
- Figure 13c is a longitudinal sectional view.
- FIG. 14 which consists of FIGS. 14a, 14b, and 14c, shows an actuator acting on the bushing (F) in a helical motion.
- the motor acts on the bushing via a threaded shaft (820) mechanically connected to the rear face of the bushing (F).
- the housing (L4) which can be a groove or a groove portion is offset with respect to a ball considered both angularly and to the AR of the plane of the ball.
- FIG. 14a is an exploded view, Figure 14b in perspective and Figure 14c in longitudinal section.
- the attached FIG. 15, which consists of FIGS. 15a and 15b, shows an actuator acting on the bushing (F) in a helical movement, with a motor (M) mounted in direct engagement with an axis or shaft (800) in the bushing (FIG. F) which is a "helical bushing", comprising a two-part module (L) having a diagonal cross groove (830) which guides a pin (840), the pin causing the bushing (F) to follow a helical movement when it is rotated along the diagonal groove (830).
- Figure 15a is an exploded view
- Figure 15b is a perspective view.
- FIG. 16 which consists of FIGS. 16a to 16d represents an actuator which actuates the sleeve (F) in translation by a direct engagement (820) which is a threaded shaft or shaft mounted screwed into the socket (F), the element support (A) comprising an axis (840 (a)) housed in the front face of said sleeve (F) in a groove (840 (b)) which allows to block the rotational movement of the sleeve and therefore to obtain a simple translation movement.
- a direct engagement 820
- the element support (A) comprising an axis (840 (a)) housed in the front face of said sleeve (F) in a groove (840 (b)) which allows to block the rotational movement of the sleeve and therefore to obtain a simple translation movement.
- Figure 16a is an exploded view.
- Figure 16b is a slight perspective view.
- FIGS. 17a to 17c represent an inertia actuator comprising a motor (M) with mass or flyweight (860) of inertia mounted on the shaft or motor shaft (800), the bushing ( F) having a pin or pin through (870) facing the plane of said weight, said flyweight (860) striking said pin or pin (870) after rotation, the inertia rotating the sleeve (F) of a displacement ANG angular putting the housing (L3) in coincidence with the ball considered.
- M motor
- flyweight mass or flyweight
- Figure 17a is an exploded view.
- Figure 17b and Figure 17c are perspective views respectively showing the engaged position or rigid key (17b) or triggered or broken key (17c).
- FIG. 18 which is comprised of FIGS. 18a to 18f, shows an actuator with striker mechanism, in which the motor (M) actuates an axis or shaft (800) which includes a bevel gear (880) which meshes with a truncated gear (890) mounted on a support (940), which truncated pinion drives a striker (920), a complete revolution of the motor for moving the striker (920) towards the AR and to store energy by compression in the spring ( 930) mounted around the striker (920), which striker is no longer held when the engine revolution is completed, the spring then restoring the energy to the locking sleeve (F) and will move in simple translation.
- the motor (M) actuates an axis or shaft (800) which includes a bevel gear (880) which meshes with a truncated gear (890) mounted on a support (940), which truncated pinion drives a striker (920), a complete revolution of the motor for moving the striker (
- Figure 18a is an exploded view.
- Figures 18b to 18f describe the successive steps, in this order, of the cycle.
- FIG. 19 represents the integration of a mechanism according to, for example, FIG. 4 into the body of a key with a large break.
- the reference (M) of the motor here contains the battery.
- the electronics are not represented.
- the present invention relates to all the mechanisms that have just been described and making it possible to act on the roller (C) for blocking the head (100) in order to allow an "instantaneous" triggering of the key when the target torque is reached. .
- the invention relates to the actuators alone (that is to say the mechanisms not comprising the electronics and possibly not including the power source (motor, cylinder, or the like) and possibly not not including batteries, and complete mechanisms ready to be mounted or assembled in a torque wrench body and keys provided with these mechanisms, actuators and / or subsets of these mechanisms or actuators.
- the invention relates to torque wrenches comprising a mechanism as described, as well as actuators as described and as well as the uses of the keys or actuators in the fields of aeronautics, automobile construction, space industry, railways , and any industrial sector requiring extreme tightening precision.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1302115A FR3010341B1 (fr) | 2013-09-10 | 2013-09-10 | Mecanisme de blocage/deblocage d'un galet dans un systeme de declenchement/enclenchement de type "actionneur" d'une cle dynamometrique notamment celle autorisant une grande cassure |
PCT/IB2014/001450 WO2015036818A1 (fr) | 2013-09-10 | 2014-08-01 | Mecanisme de blocage/deblocage d'une cle dynamometrique |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3043966A1 true EP3043966A1 (fr) | 2016-07-20 |
EP3043966B1 EP3043966B1 (fr) | 2021-08-18 |
Family
ID=49474490
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP14767091.3A Active EP3043966B1 (fr) | 2013-09-10 | 2014-08-01 | Mecanisme de blocage/deblocage d'une cle dynamometrique |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP3043966B1 (fr) |
ES (1) | ES2897641T3 (fr) |
FR (1) | FR3010341B1 (fr) |
WO (1) | WO2015036818A1 (fr) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR3056745B1 (fr) * | 2016-09-29 | 2018-11-16 | Sam Outillage | Cle dynanometrique a debattement amorti par voie hydraulique, avec ou sans butee de limitation angulaire |
DE102018100664A1 (de) * | 2018-01-12 | 2019-07-18 | STAHLWILLE Eduard Wille GmbH & Co. KG | Drehmomentwerkzeug |
DE102018100665A1 (de) | 2018-01-12 | 2019-07-18 | STAHLWILLE Eduard Wille GmbH & Co. KG | Auslösemechanismus für ein Drehmomentwerkzeug |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1301164A (fr) | 1961-09-19 | 1962-08-10 | Gustavsbergs Fabriker Ab | Foyer à combustion intermittente |
US5337638A (en) * | 1993-02-11 | 1994-08-16 | Micro Motors, Inc. | Torque control ratchet wrench |
DE19912837C2 (de) * | 1999-03-22 | 2001-04-19 | Raimund Wilhelm | Drehmomentschlüssel |
US6119562A (en) * | 1999-07-08 | 2000-09-19 | Jenkins; Bradley G. | Electromechanical releasing torque wrench |
US6526853B2 (en) * | 2001-01-31 | 2003-03-04 | Bradley G. Jenkins | Electromechanical releasing torque wrench |
DE102006013148A1 (de) * | 2006-03-20 | 2007-09-27 | Eduard Wille Gmbh & Co. Kg | Drehmomentwerkzeug mit Leistungsverstärker |
DE102008004102A1 (de) * | 2008-01-11 | 2009-07-23 | Hsuan-Sen Shiao | Elektronischer Drehmomentschlüssel mit einer Auslöseeinheit |
JP5269684B2 (ja) | 2009-04-16 | 2013-08-21 | 株式会社東日製作所 | トルクレンチ |
-
2013
- 2013-09-10 FR FR1302115A patent/FR3010341B1/fr not_active Expired - Fee Related
-
2014
- 2014-08-01 WO PCT/IB2014/001450 patent/WO2015036818A1/fr active Application Filing
- 2014-08-01 EP EP14767091.3A patent/EP3043966B1/fr active Active
- 2014-08-01 ES ES14767091T patent/ES2897641T3/es active Active
Non-Patent Citations (2)
Title |
---|
None * |
See also references of WO2015036818A1 * |
Also Published As
Publication number | Publication date |
---|---|
FR3010341B1 (fr) | 2015-10-02 |
ES2897641T3 (es) | 2022-03-02 |
EP3043966B1 (fr) | 2021-08-18 |
FR3010341A1 (fr) | 2015-03-13 |
WO2015036818A1 (fr) | 2015-03-19 |
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