EP3268167B1 - Clé dynamométrique - Google Patents

Clé dynamométrique Download PDF

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Publication number
EP3268167B1
EP3268167B1 EP16709968.8A EP16709968A EP3268167B1 EP 3268167 B1 EP3268167 B1 EP 3268167B1 EP 16709968 A EP16709968 A EP 16709968A EP 3268167 B1 EP3268167 B1 EP 3268167B1
Authority
EP
European Patent Office
Prior art keywords
locking
torque wrench
wrench according
handle
locking ring
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.)
Active
Application number
EP16709968.8A
Other languages
German (de)
English (en)
Other versions
EP3268167A1 (fr
Inventor
Christian BALLSIEPER
Patrick Klatt
Peter Welp
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hazet Werk Hermann Zerver GmbH and Co KG
Original Assignee
Hazet Werk Hermann Zerver GmbH and Co KG
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.)
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Publication date
Application filed by Hazet Werk Hermann Zerver GmbH and Co KG filed Critical Hazet Werk Hermann Zerver GmbH and Co KG
Publication of EP3268167A1 publication Critical patent/EP3268167A1/fr
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Publication of EP3268167B1 publication Critical patent/EP3268167B1/fr
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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
    • B25G—HANDLES FOR HAND IMPLEMENTS
    • B25G3/00—Attaching handles to the implements
    • B25G3/02—Socket, tang, or like fixings
    • B25G3/12—Locking and securing devices

Definitions

  • the invention relates to a torque wrench according to the features in the preamble of claim 1.
  • Torque wrench is a general term for a hand-held screwdriver with which a defined tightening torque can be exerted on a connecting element, for example a screw or a nut, in order to ensure the necessary clamping force between the components to be connected.
  • a connecting element for example a screw or a nut
  • indicating torque wrenches measuring keys
  • triggering types click or crack keys
  • torque wrenches consist essentially of a lever tube whose length is tuned to the torque range to be covered, with a release mechanism housed in the lever tube and a handle at the rear end and a drive part or tool head at the front end. With the handle a setting device is connected with display.
  • the tool head is often designed as a switchable or ratchet ratchet, also called ratchet.
  • the desired torque is adjusted by compressing a compression spring by rotating the handle connected to a threaded spindle relative to the lever tube.
  • the handle is fixed in the position of use on the lever tube.
  • the set torque can be read on a display of a display body.
  • the display is designed as a vernier scale for the currently used torque wrenches.
  • the display body can be designed as a scale sleeve or as a scale housing.
  • a display body in the form of a scale sleeve is from the DE 20 2013 100 266 U1 as well as from the DE 20 2007 008 522 U1 known.
  • a torque wrench with executed as a scale housing display body goes out of the DE 20 2013 100 268 U1 out.
  • a torque wrench is described with a tubular shaft, at one end of a relatively rotatable and limited longitudinally displaceable handle is provided.
  • the outer surface of the shaft is provided in the longitudinal region of the handle with longitudinal grooves, into which at least one locking element fixing the handle on the shaft can be pressed.
  • This locking element is formed from a cylindrical roller extending with its longitudinal axis parallel to the longitudinal axis of the shaft, which lies in a slot-shaped recess adapted to its contour in the handle and by rotating a arranged on the handle locking sleeve with a receiving recess in the inner surface of the locking sleeve frontally to cover can be brought.
  • the DE 20 2007 010 665 U1 discloses a torque wrench.
  • a receiving means for receiving a screw or the like and an adapter element for receiving a handle coupled with the inclusion of a torque limiting means are coupled together.
  • the torque limiting device limits the transmission of a maximum allowable torque from the adapter element to the receiving means.
  • the torque limiting means on a shear pin.
  • the invention is based on the prior art, the task of creating a manufacturing and assembly technically advantageous torque wrench.
  • Characteristic is the modular gripping system of the torque wrench.
  • the invention enables a cost-effective production by identical series and simpler assembly processes. It can be implemented by replacing the display body different torque wrench systems.
  • An inventive torque wrench has a lever tube with a handle and a display body for displaying a set torque.
  • the display body may be a graduated sleeve or a scale housing.
  • the handle and the display body are coupled together on the lever tube of the torque wrench.
  • the handle has a connecting piece pointing to the display body. On the outer circumference of the connecting piece a groove is provided.
  • the display body has coupling sections directed to the connection piece, on which an abutment edge is provided.
  • the coupling between the handle and display body by means of a locking ring.
  • the locking ring has locking bodies, which cooperate lockingly with the groove on the connecting piece and the abutment edges of the coupling segments.
  • An essential aspect of the invention is that the locking ring can be converted by a rotational movement in its locking position.
  • the locking body comprises a pawl, which is formed on a spring leg of the closure ring.
  • the locking body is geometrically configured so that it ensures the locking function with the groove on the one hand and the or the abutment edges on the other.
  • Each abutment edge is preferably formed on a locking groove aligned in the circumferential direction of the coupling segments.
  • the width of the pawl is matched to the width of the groove in the connecting piece of the handle and to the width of the locking groove in the coupling segments.
  • a guide element is provided on the locking body, which cooperates with a control cam on the display body.
  • the guide element is designed as a pin or cam with a circular cross section, which protrudes from the closure ring in the direction of the display body and comes to rest on the control cam.
  • the control cam is formed here as or in a control groove.
  • the control groove is introduced in the end face of the indicator body facing the locking ring.
  • the cam extends arcuately.
  • a display body has in each case two coupling segments and two control cams.
  • the two coupling segments, on the one hand, and the two control cams, on the other hand, are preferably offset by 180 ° relative to one another on the display body and executed in mirror image relative to the respective vertical or horizontal plane.
  • the display body has a latching tab.
  • a guide groove is provided in the locking ring. In the guide groove engages the locking tab of the display body.
  • a latching edge is formed, on which the latching tab in the locking position of the locking ring comes to rest against the abutment.
  • the latching edge is formed on a latching pocket, which is provided for receiving the latching tab in the locking position.
  • the coupling segments protrude from the display body in the direction of the connecting piece of the handle.
  • the closure ring is first attached to the display body or the coupling segments of the display body. There is a free space between the coupling segments, so that the locking ring can be plugged with its locking bodies projecting radially inwards.
  • the locking body or the spring legs of the closure ring, on which the pawls are formed are relieved in this position.
  • the blocking bodies protrude radially inward into the interior space between the coupling segments. In this position, the locking body would prevent the insertion of the connecting piece of the handle.
  • the locking ring is rotated a piece radially.
  • the guide element moves along the control cam.
  • the spring leg of the closure ring is moved radially outward.
  • the interior of the display body is free for the passage of the connecting piece.
  • the connection piece of the handle can then be inserted into the display body.
  • the axial insertion movement of the handle is limited by a stop on the handle of the handle.
  • the handle comes with a radially circumferential shoulder portion on the locking ring of the torque wrench to the plant.
  • the locking ring is used in a known manner for releasing or locking the handle for the rotational movement for adjusting a torque.
  • connection piece After the connection piece is inserted into the display body with the sealing ring positioned thereon, the closure ring is further rotated. The rotational movement takes place radially in the same direction as before.
  • the control cam in the display body is configured in such a way that the spring legs are relaxed and re-directed radially inwards.
  • the locking body of the locking ring engage in the groove on the connecting piece and the Locking body reaches the locking position.
  • the pawl of the locking body comes to the abutment edge of the coupling segments or to the plant.
  • an abutment edge is formed in particular on a locking groove of the coupling segments.
  • the locking tab of the display body moves in the guide groove in the locking ring.
  • a latching edge is formed, on which the latching tab at the end of the rotational movement of the closure ring in the locking position abutting comes to rest.
  • the latching tab is received in the latching pocket formed in the locking ring. In this way, the locking ring is locked against turning back.
  • the connection between the handle and the display body is axially and radially secured.
  • Locking position means the position of the handle, locking ring and display body in the functional or operating state of a torque wrench.
  • the locking body or pawls engage in the groove of the connecting piece.
  • the locking tab is located in the catch pocket and is located at the locking edge.
  • the locking ring has an opening in its wall in the region of the detent pocket.
  • the locking tab With the help of a guided through the opening tool, the locking tab can be pressed inwards. As a result, the locking between locking tab and locking edge is released, so that the locking ring can be rotated back against the closing movement in the other direction. In the open position disassembly of the individual components is possible.
  • the closure ring has a spring tongue with a locking cam projecting in the direction of the display body.
  • the display body has a guide groove with an inclined guide track formed therein. At the end of the guideway a recess is provided.
  • the assembly and connection of handle and display body on the lock ring is carried out as previously described by means of the locking body, which cooperate lockingly with the groove on the connecting piece of the handle and the abutment edges of the coupling segments.
  • the determination of the components relative to each other in the locking position takes place in this variant by means of the locking cam, which engages in the locking position of the locking ring in the locking recess.
  • connection piece is inserted into the display body with the sealing ring positioned thereon.
  • fixation takes place via the rotational movement of the closure ring radially about the longitudinal axis.
  • the locking ring and the indicator body come to rest on the face.
  • the blocking cam projecting in the direction of the display body engages in the guide groove.
  • the locking cam is displaced over the inclined guideway.
  • the locking cam follows the inclined plane of the guideway and is deflected towards the rear or top in the direction of the display body side facing away from the locking ring until the locking cam at the end of the assembly movement and locked at the end of the guideway resiliently into the recess.
  • the locking cam comes in the locking position of the locking ring in the latching recess for engagement.
  • the locking cam is arranged at the free end of the spring tongue.
  • the locking ring has on the opposite side of the locking cam spring tab on a recess.
  • the recess ensures a corresponding clearance for a deflection of the spring tab during the assembly movement, so that the locking cam or the spring tab can be deflected elastically during the movement of the locking cam on the guideway.
  • the display body can be made of brittle materials such as ceramic, polymer concrete or fiber-reinforced materials in addition to the usual materials such as metal or plastic.
  • the locking ring After assembly of the components, ie in the functional position of the torque wrench, the locking ring is prevented from turning back by the locking cam engaging in the locking recess.
  • the connection between the handle and the display body is here axially and radially secured.
  • the display body in the region of the recess on an opening in its outer wall. Through the opening, a suitable tool can be performed to lift the locking cam and to move out of the latching position of the locking recess, so that the locking ring can be turned back against the assembly or closing movement. Subsequently, a disassembly of the components is possible.
  • the locking bodies of the locking ring produce a stable, positive connection between the handle and the display body.
  • the locking body are unloaded and cause a reliable axial locking between the handle and display body. This is advantageous, both as regards the durability of the connection as well as the reliability of the connection in shock or impact loads, for example, in an improper handling of the torque wrench, such as a sudden stress in a fall.
  • the display body may be a scale housing or a graduated sleeve.
  • the scale sleeve moves when adjusting the torque by means of the rotational movement of the handle together with the handle.
  • the mechanical coupling between the handle and scale sleeve takes place via a toothing, in particular a spur toothing.
  • toothed elements are provided at the free end of the connecting piece, which engage with driving elements of the scale sleeve for engagement.
  • a display body in the form of a scale housing there is no rotational movement of the scale housing in the radial direction.
  • the handle and the scale housing are coupled so that the scale housing during the rotational movement the handle is moved back and forth in the axial direction, but does not rotate radially.
  • the display of the set torque via a pointer, which is firmly connected to the lever tube and ensures a guide of the scale housing.
  • the scale housing moves axially to the pointer during the adjustment.
  • the set torque is displayed in a scale window of the scale housing. A fine adjustment takes place via an additional vernier.
  • the scale housing and the handle or the connecting piece of the handle are coordinated so that the scale housing axially displaced when adjusting the torque, but is not rotated in the circumferential direction.
  • Driver elements, which engage with the tooth elements of the connecting piece are not required in the scale housing.
  • the handle, the display body and the locking ring can each be made of plastic.
  • the aforementioned components can also be designed in metal. Also combinations of plastics and metal in the execution of the components are possible.
  • the individual components may be formed from different materials or from hybrid components.
  • the handle can be designed in a metal-plastic combination.
  • FIGS. 1 and 3 each show a torque wrench 1, 2, which has a lever tube 3 with a handle 4 at a rear end 5 and a tool head 6 at the front end 7.
  • an adjustment mechanism not shown here for adjusting a torque is provided in the lever tube 3.
  • the adjustment takes place via a rotation of the handle 4.
  • the handle 4 can be unlocked or locked. This is done via a locking ring 8, which can be brought by a rotational movement in a release or locking position.
  • the handle 4 is fixed in the position of use by means of the locking ring 8 on the lever tube 3.
  • the set torque can be read on a display of a display body 9.
  • the display body 9 is designed as a scale housing 10 with a scale window 11.
  • the display of the torque via a pointer 12 and a vernier 48.
  • the handle 4 the scale housing 10 in the axial direction, but not in the radial direction or circumferential direction of the lever tube 3 with.
  • the display body 9 is designed in the form of a graduated sleeve 13.
  • the scale sleeve 13 carries a vernier scale 14.
  • the lever tube 3 is provided with a scale 15. During the rotational movement of the handle 4 for adjusting the torque, the scale sleeve 13 is rotated and simultaneously displaced in the direction of the lever tube 3.
  • FIGS. 2 and 4 each show an enlarged section of the grip portion of the torque wrench 1 and 2.
  • the FIGS. 5 and 6 also show the handle 4 with the locking ring 8 and the display body 9 mounted on the handle 4. The fixing or connection between the handle 4 and the display body 9 takes place by means of a locking ring 16.
  • a handle 4 is again in the FIGS. 7 and 8 shown in detail.
  • FIGS. 9 to 19 show a display body 9 in the form of a scale housing 10 and a display body 9 in the form of a scale sleeve 13 and the closure ring 16 in different partial representations or mounting positions.
  • FIG. 20 shows a positioned on a handle 4 locking ring 16
  • FIG. 21 shows a display body 9 in the form of a scale sleeve 13 in its relative position to the handle 4 before assembly.
  • the locking ring 16 is not shown here.
  • the handle 4 has a handle 17 and a directed to the display body 9 connecting piece 18.
  • the inner diameter of the connecting piece 18 is matched to the outer diameter of the lever tube 3.
  • On the connecting piece 18 and the locking ring 8 is positioned.
  • a radially circumferential groove 19 is provided in the outer periphery of the connecting piece 18.
  • the display body 9 has two of its inner end face 20 in the direction of the connecting piece 18 projecting coupling segments 21.
  • the coupling segments 21 are configured arcuately and arranged circumferentially offset by 180 ° to each other.
  • the inner diameter d1 between the coupling segments 21 is matched to the outer diameter d2 or outer circumference of the connecting piece 18.
  • the coupling segments 21 each have a directed in the circumferential direction of the coupling segments 21 locking groove 23.
  • the locking grooves 23 extend approximately over one third of the circumferential length of a coupling segment 21 at the transition to the end face 20 of the display body 9.
  • the locking grooves 23 form an undercut with an abutment edge 24th
  • control grooves 25 are further provided in the end face 20 of the display body 9.
  • Each control groove 25 forms a control cam 26 on the display body 9.
  • the two control grooves 25 are provided on the display body 9 in the region of the free space 22 between the coupling segments 21 and also offset by 180 ° to each other.
  • the locking ring 16 has locking body 28 which cooperate lockingly with the connecting piece 18 and with the abutment edges 24 of the coupling segments 21.
  • the locking ring 16 has two spring legs 29.
  • the spring legs 29 are curved in a circular arc and directed in the circumferential direction of the closure ring 16.
  • the locking bodies 28 each have a pawl 30, which is arranged in the region of the free end 31 of a spring leg 29. Concentric on the back of the spring leg 29 radially extending recesses 32 allow a radially elastic compliance of the spring leg 29th
  • guide elements 34 are provided in the form of a pin at the free end 31 of the spring leg. These are intended for the engagement and the cooperation with the control grooves 25 and the cams 26.
  • a guide groove 35 is provided in the locking ring 16.
  • the guide groove 35 extends in the circumferential direction of the closure ring 16 between the outer wall 36 of the closure ring 16 and an inner arcuate support wall 37.
  • the guide groove 35 cooperates with the locking tab 27 of the display body 9 during the locking process.
  • a latching pocket 38 is formed with a latching edge 39.
  • the latching pocket 38 is intended to receive the latching tab 27 in the locking position AP of the locking ring 16. In the locking position AP, the locking tab 27 comes to the locking edge 39 of the latching pocket 38 abutting the plant.
  • the locking ring 16 When mounting for connecting the handle 4 and display body 9, the locking ring 16 is placed on the coupling segments 21 of the display body 9. This is illustrated by the illustrations of the FIGS. 15 to 17 , The spring legs 29 protrude in the region of the free spaces 22 between the coupling segments 21. The coupling segments 21 abut with their outer circumference on the inner peripheral wall of the closure ring 16. The spring legs 29 are unloaded. The guide elements 34 engage in the control grooves 25.
  • the guide elements 34 slide along the control cam 25 formed in the cam groove 25.
  • the cam 26 rises from the inner end 40 to the outside to the center 41 at.
  • the spring legs 29 and the spring legs 29, the locking body 28 is moved radially outward.
  • the blocking bodies 28 no longer protrude inwards relative to the inner diameter of the coupling segments 21.
  • the connecting piece 18 can be axially inserted into the coupling segments 21 and the display body 9 until the locking ring 8 comes with its circumferential annular shoulder 42 on the locking ring 16 to the plant.
  • the length of the connecting piece 18 and the position of the groove 19 on the outer circumference of the connecting piece 18 is adjusted so that the groove 19 is positioned congruent with the locking bodies 28 of the closure ring 16.
  • the locking tab 27 is in this position in front of the catch pocket 38th
  • the locking ring 16 is then rotated further in the circumferential direction.
  • the guide elements 34 each move in the control grooves 25 downwardly inwardly to the other end 40 'of the control cam 26.
  • the spring legs 29 are relaxed and move radially inward.
  • the pawls 30 engage in the groove 19.
  • the spring legs 29 are relaxed on the outer circumference of the coupling segments 21 at.
  • the pawls 30 are inserted into the locking grooves 23 and abut against the abutment edges 24.
  • the handle 4 and the display body 9 are firmly connected to each other by means of the closure ring 16.
  • the locking bodies 28 cooperate with the groove 19 on the connecting piece 18 and the abutment edges 24 of the coupling segments 21 arresting together.
  • the pawls 30 engage in the groove 19.
  • the locking tab 27 comes to the locking edge 39 of the locking pocket 38 abutting the plant.
  • an opening 43 is provided in the outer wall 36 of the closure ring 16 in the region of the catch pocket 38.
  • a tool can be inserted and the locking tab 27 are pressed radially inward, so that it releases the abutment position in the latching pocket 38.
  • the locking ring 16 can then be rotated in the opposite direction, so that disassembly is possible.
  • a display body 9 in the form of a graduated sleeve 13 the handle 4 and the scale sleeve 13 are coupled in the axial and radial directions by a spur gear teeth 44.
  • 18 tooth elements 46 are provided at the free end 45 of the connecting piece.
  • the toothed elements 46 reach in the assembled position with driver elements 47 of the scale sleeve 13 for engagement.
  • the scale sleeve 13 is rotated around the lever tube 3 in the rotational movement of the grip 4 for adjusting a torque in the circumferential direction.
  • the tooth elements 46 at the free end 45 of the connecting piece 18 have no function.
  • the spring legs 29 are unloaded.
  • the pawls 30 engage in the locking grooves 23 behind the abutment edges 24.
  • the handle 4 and the display body 9 and the locking ring 16 are axially and radially coupled in the locking position and secured.
  • FIGS. 23a ) and b) show again the invention essential component component of the torque wrench 1 and 2 in an exploded perspective exploded view of handle 4 with connection piece 18 and groove 19 and the locking ring 16 and the display body 9 in the form of a scale housing 10 and a graduated sleeve 13th
  • FIG. 24c shows the display body 50 in a partially sectioned view.
  • the coupling between the handle 4 via the connecting piece 18 and the groove 19 is effected as described above, so that it is dispensed with a repeated detailed explanation.
  • the display body 50 has coupling segments 21 with abutment edges 24.
  • the locking ring 49 has locking bodies 28 which cooperate with the groove 19 on the connecting piece 18 and the abutment edges 24 of the coupling segments 21 arresting. As before, the locking ring 49 can be converted by a rotational movement in the locking position AP.
  • the locking body 28 have pawls 30 which are formed on a spring leg 29 of the closure ring 49.
  • the locking ring 49 has a spring tab 52 with a blocking cam 53 projecting in the direction of the indicator body 50.
  • the locking cam 53 is arranged at the free end 54 of the spring tongue 52.
  • the display body 50 has a guide groove 57 with an inclined guide track 58.
  • a latching recess 60 is provided at the end 59 of the guide track 58.
  • the locking cam 53 comes into abutment in the latching recess 60 or engages in this.
  • the assembly takes place in the manner described above.
  • the locking ring 49 is placed on the coupling segments 21 of the display body 50 and then rotated, whereby the spring legs 29 and the locking body 28 are first moved radially outward.
  • the handle 4 with the connecting piece 18 can be inserted through the locking ring 49 in the display body 50.
  • the locking cam 53 is inserted into the guide groove 57 on the end face 61 of the locking ring 49.
  • the locking ring 49 is then further rotated in the circumferential direction.
  • the spring legs 29 are relaxed and the locking body 28 engage in the groove 19 on the connecting piece 18 a.
  • the locking body 28 are locking behind the abutment edges 24 of the coupling segments 21st
  • the locking cam 53 is moved along the guide track 58. In the picture plane of FIG. 24c ) this is from right to left.
  • the rotational movement of the locking cam 53 is raised over the inclined plane of the inclined guide track 58.
  • the spring tab 52 is deflected in the image plane upwards.
  • the latching recess 60 is arranged. As soon as the locking cam 53 passes the latching edge 62 at the transition of the guide track 58 to the latching recess 60, the spring tab 52 springs in the direction of the indicator body 50 and the locking cam 53 engages in the latching recess 60 in an opposing manner.
  • an automatic or inadvertent turning back of the locking ring 49 is achieved by the locked blocking cam 53 prevented.
  • an opening 64 is provided in the outer wall 63 of the display body 50 in the region of the latching recess 60.
  • the locking cam 53 can be lifted out of its arresting position in the latching recess 60. Subsequently, the locking ring 49 can then be rotated in the opposite direction, so that a disassembly of the components is possible.
  • the display body 50 may also be designed as a scale housing 65.
  • the display body 50 and the scale housing 65 in its end face 66 a guide groove 57 with a sloping guide track 58, at the end 59 a recess 60 is provided.
  • the locking ring 49 is as in FIG. 24 shown. Details are still in the FIGS. 27a ) and b), which show perspective views of handle 4 with connection piece 18, closure ring 49 and scale housing 65.

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

Claims (17)

  1. Clé dynamométrique, qui comporte un tube de levier (3) avec une poignée (4) et un corps indicateur (9, 50) destiné à l'affichage d'un couple réglé, caractérisée en ce que la poignée (4) comporte un embout de liaison (18) pointant vers le corps indicateur (9, 50) et muni d'une rainure (19) au niveau de la circonférence extérieure, en ce que des segments de couplage (21) dirigés vers l'embout de liaison (18) et munis d'une arête de butée (24) sont prévus au niveau du corps indicateur (9, 50) et en ce que la poignée (4) et le corps indicateur (9, 50) sont couplés au moyen d'une bague de verrouillage (16, 49), laquelle bague de verrouillage (16, 49) comporte des corps de blocage (28) qui coopèrent pour le blocage avec la rainure (19) au niveau de l'embout de liaison (18) ainsi qu'avec des arêtes de butée (24) des segments de couplage (21).
  2. Clé dynamométrique selon la revendication 1, caractérisée en ce que la bague de verrouillage (16, 49) peut passer dans sa position de blocage (AP) par un mouvement de rotation.
  3. Clé dynamométrique selon la revendication 1 ou 2, caractérisée en ce que le corps de blocage (28) comprend un cliquet d'arrêt (30) qui est réalisé au niveau d'une branche de ressort (29) de la bague de verrouillage (16, 49).
  4. Clé dynamométrique selon l'une quelconque des revendications 1 à 3, caractérisée en ce que les arêtes de butée (24) sont réalisées au niveau des rainures de verrouillage (23) des segments de couplage (21).
  5. Clé dynamométrique selon l'une quelconque des revendications 1 à 4, caractérisée en ce qu'il est prévu au niveau du corps de blocage (28) un élément de guidage (34) qui coopère avec une courbe de commande (26) au niveau du corps indicateur (9, 50).
  6. Clé dynamométrique selon la revendication 5, caractérisée en ce que la courbe de commande (26) est réalisée au niveau d'une rainure de commande (25) s'étendant courbée en forme d'arc.
  7. Clé dynamométrique selon l'une quelconque des revendications 1 à 6, caractérisée en ce que le corps indicateur (9) comporte une languette d'enclenchement (27) qui pénètre dans une rainure de guidage (35) dans la bague de verrouillage (16).
  8. Clé dynamométrique selon la revendication 7, caractérisée en ce qu'une arête d'enclenchement (39) est réalisée dans la rainure de guidage (35), arête de guidage au niveau de laquelle la languette d'enclenchement (27) arrive en appui de butée dans la position d'arrêt (AP) de la bague de verrouillage (16).
  9. Clé dynamométrique selon la revendication 8, caractérisée en ce que l'arête d'enclenchement (39) est réalisée au niveau d'une poche d'enclenchement (38) qui reçoit la languette d'enclenchement (27).
  10. Clé dynamométrique selon la revendication 9, caractérisée en ce que la paroi extérieure (36) de la bague de verrouillage (16) comporte une ouverture (43) dans la zone de la poche d'enclenchement (38).
  11. Clé dynamométrique selon l'une quelconque des revendications 1 à 6, caractérisée en ce que la bague de verrouillage (49) comporte une jumelle de ressort (52) avec un mentonnet de blocage (53) dépassant en direction du corps indicateur (50) et en ce que le corps indicateur (50) comporte une rainure de guidage (57) avec une trajectoire de guidage (58) s'étendant inclinée, un évidement d'enclenchement (60) étant prévu à une extrémité (59) de la trajectoire de guidage (58) et le mentonnet de blocage (53) pénétrant en butée dans l'évidement d'enclenchement (60) dans la position d'arrêt (AP) de la bague de verrouillage (49).
  12. Clé dynamométrique selon la revendication 11, caractérisée en ce que le mentonnet de blocage (53) est agencé à l'extrémité libre (54) de la jumelle de ressort (52).
  13. Clé dynamométrique selon l'une quelconque des revendications 11 ou 12, caractérisée en ce que la bague de verrouillage (49) comporte un évidement (56) du côté (55), opposé au mentonnet de blocage (53), de la jumelle de ressort (52).
  14. Clé dynamométrique selon l'une quelconque des revendications 11 à 12, caractérisée en ce que le corps indicateur (50) comporte dans la zone de l'évidement d'enclenchement (60) une ouverture (64) dans sa paroi extérieure (63).
  15. Clé dynamométrique selon l'une quelconque des revendications 1 à 14, caractérisée en ce que le corps indicateur (9, 50) est un habillage gradué (10, 65).
  16. Clé dynamométrique selon l'une quelconque des revendications 1 à 14, caractérisée en ce que le corps indicateur (9, 50) est un manchon gradué (13, 51).
  17. Clé dynamométrique selon la revendication 16, caractérisée en ce que des éléments dentés (46), qui arrivent en prise avec des éléments entraîneurs (47) du manchon gradué (13, 51), sont prévus à l'extrémité libre (45) de l'embout de liaison (18).
EP16709968.8A 2015-03-11 2016-02-17 Clé dynamométrique Active EP3268167B1 (fr)

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DE102015103539.1A DE102015103539A1 (de) 2015-03-11 2015-03-11 Drehmomentschlüssel
PCT/DE2016/100073 WO2016141922A1 (fr) 2015-03-11 2016-02-17 Clé dynamométrique

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DE (1) DE102015103539A1 (fr)
ES (1) ES2714594T3 (fr)
WO (1) WO2016141922A1 (fr)

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TWI667103B (zh) * 2018-09-20 2019-08-01 優鋼機械股份有限公司 Torque indication of torque tool and its torque interpretation method
DE202018105815U1 (de) 2018-10-11 2018-11-05 STAHLWILLE Eduard Wille GmbH & Co. KG Adapter für ein Antriebswerkzeug
TWI680034B (zh) * 2019-04-11 2019-12-21 和嘉興精密有限公司 扭力扳手結構
USD915164S1 (en) * 2019-07-03 2021-04-06 SW-Stahl GmbH Tool handle for a torque wrench
TWI708663B (zh) * 2020-02-13 2020-11-01 和嘉興精密股份有限公司 扭力結構
TWI707748B (zh) * 2020-02-13 2020-10-21 和嘉興精密股份有限公司 扭力結構
TWI710434B (zh) * 2020-02-21 2020-11-21 和嘉興精密股份有限公司 扭力結構
TWI710433B (zh) * 2020-02-21 2020-11-21 和嘉興精密股份有限公司 扭力結構
TWI714469B (zh) * 2020-03-06 2020-12-21 和嘉興精密股份有限公司 扭力結構
TWI715476B (zh) * 2020-03-26 2021-01-01 和嘉興精密股份有限公司 扭力結構
TWI718956B (zh) * 2020-06-01 2021-02-11 和嘉興精密股份有限公司 扭力結構
TWI733547B (zh) * 2020-08-07 2021-07-11 和嘉興精密股份有限公司 扭力結構
DE202021102127U1 (de) * 2021-04-21 2022-07-22 Hazet-Werk Hermann Zerver Gmbh & Co. Kg Drehmomentwerkzeug
CN113733000B (zh) * 2021-09-03 2022-04-22 北京卫星环境工程研究所 一种可单手使用的航天棘轮扳手
CN113732999B (zh) * 2021-09-22 2023-03-14 上海优拜机械股份有限公司 一种扭矩扳手
CN115431204A (zh) * 2022-10-19 2022-12-06 杭州昕迈科技有限公司 一种预设扭矩的扳手

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Publication number Publication date
CN107249822A (zh) 2017-10-13
WO2016141922A1 (fr) 2016-09-15
CN107249822B (zh) 2019-04-19
EP3268167A1 (fr) 2018-01-17
US9999966B2 (en) 2018-06-19
DE102015103539A1 (de) 2016-09-15
US20180050442A1 (en) 2018-02-22
ES2714594T3 (es) 2019-05-29

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