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EP3553899A1 - Outil de sertissage - Google Patents

Outil de sertissage Download PDF

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Publication number
EP3553899A1
EP3553899A1 EP18166729.6A EP18166729A EP3553899A1 EP 3553899 A1 EP3553899 A1 EP 3553899A1 EP 18166729 A EP18166729 A EP 18166729A EP 3553899 A1 EP3553899 A1 EP 3553899A1
Authority
EP
European Patent Office
Prior art keywords
spring
crimping tool
pressing
jaws
force
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
Application number
EP18166729.6A
Other languages
German (de)
English (en)
Other versions
EP3553899B1 (fr
Inventor
Thomas Glockseisen
Roman Zinser
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.)
Wezag GmbH and Co KG
Original Assignee
Wezag GmbH Werkzeugfabrik
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Wezag GmbH Werkzeugfabrik filed Critical Wezag GmbH Werkzeugfabrik
Priority to EP18166729.6A priority Critical patent/EP3553899B1/fr
Priority to JP2019070350A priority patent/JP7570082B2/ja
Priority to US16/377,521 priority patent/US11424587B2/en
Priority to TW108112320A priority patent/TWI794467B/zh
Priority to CN201910288303.0A priority patent/CN110355724B/zh
Publication of EP3553899A1 publication Critical patent/EP3553899A1/fr
Application granted granted Critical
Publication of EP3553899B1 publication Critical patent/EP3553899B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
    • B25B27/14—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for assembling objects other than by press fit or detaching same
    • B25B27/146—Clip clamping hand tools
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
    • H01R43/04—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for forming connections by deformation, e.g. crimping tool
    • H01R43/042—Hand tools for crimping
    • 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
    • B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
    • B25B27/14—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for assembling objects other than by press fit or detaching same
    • 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
    • B25B7/00—Pliers; Other hand-held gripping tools with jaws on pivoted limbs; Details applicable generally to pivoted-limb hand tools
    • B25B7/14—Locking means
    • B25B7/16—Locking means combined with means for tightening the operating arms of jaws
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
    • H01R43/04—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for forming connections by deformation, e.g. crimping tool
    • H01R43/042—Hand tools for crimping
    • H01R43/0425—Hand tools for crimping with mandrels actuated in axial direction to the wire
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/53—Means to assemble or disassemble
    • Y10T29/5313—Means to assemble electrical device
    • Y10T29/532—Conductor
    • Y10T29/53209—Terminal or connector
    • Y10T29/53213—Assembled to wire-type conductor
    • Y10T29/53222—Means comprising hand-manipulatable implement
    • Y10T29/53226—Fastening by deformation

Definitions

  • the present invention relates to a crimping tool.
  • the pressing or crimping tool can be done by manual operation of hand levers pressing or crimping a workpiece.
  • a generic pressing pliers preferably of the mechanical fluid-tight connection in the fluid technology, for example, for joining pipes used with each other or with fluidic connectors.
  • Exemplary embodiments of a generic pressing tongs can the publications DE 197 09 639 A1 . DE 198 34 859 C2 . DE 199 24 086 C2 . DE 199 24 087 C2 . DE 199 63 097 C1 . DE 103 46 241 B3 . DE 10 2007 001 235 B4 . DE 10 2008 005 472 B3 .
  • EP 2 995 424 A1 be removed.
  • the invention has for its object to provide a manually operated crimping press or crimping pliers, which is improved in terms of power ratios, ease of use and operating safety.
  • a pressing or crimping tool which has two (die-bearing or forming) jaws.
  • the jaws are drive connected via a suitable drive mechanism with two hand levers.
  • a working stroke of the jaws can be brought from an open position of the jaws in a closed position of the jaws by relative movement of the hand lever.
  • the working stroke can have an "idle stroke", in which the dies are first applied to the workpiece, and have a pressing or crimping stroke, in which the workpiece is pressed or crimped between the dies.
  • at least one spring device is used.
  • the at least one spring device is formed in the invention in a special way and integrated into the power flow:
  • the at least one spring means initially ensures an equilibrium position. In the equilibrium position, the spring device exerts no force on the jaws. In the case of using a single spring means so that this spring means in the equilibrium position is not tense (or stretched only to such a small extent that a present in the crimping or crimping force or other resistance can not be overcome). In the case of the use of several spring devices, these can all not be tense or the effect of the tensioned spring devices cancel each other.
  • the said equilibrium position of the jaws is arranged between the open position and the closed position of the jaws (for example, between 20% to 80% or 30% to 60% of the working stroke).
  • the equilibrium position divides the working stroke into a first partial working stroke, which is arranged between the open position and the equilibrium position of the jaws, and a second partial working stroke, which is arranged between the equilibrium position and the closed position.
  • the at least one spring device exerts a closing force on the jaws.
  • the spring device exerts an opening force on the jaws in the second partial working stroke.
  • the spring means generates a non-linear characteristic of the spring force.
  • the non-linear characteristic of the spring force has a kink and / or a jump, in particular in the equilibrium position or between the two partial work strokes.
  • the spring means may comprise one or more springs.
  • the at least one spring made of any material (for example, metal, plastic, an elastomeric material) and also be made of a composite material. It can be a compression spring, Tension spring, a rotation angle spring, a torsion spring or a spring of any other type act. In the case of the use of multiple springs, these may be arranged in mechanical series connection or parallel connection and / or be integrated at different points in the power flow. It is also possible that one spring acts in the opening direction and another spring acts in the closing direction.
  • the spring device generates a non-linear characteristic which has a kink and / or a jump, in particular in the equilibrium position or between the two partial working strokes.
  • the spring device has a closing spring and an opening spring.
  • the closing spring in the first partial working stroke, the closing spring generates the closing force, while in the second partial working stroke, the opening spring generates the opening force. It is possible here that in the first partial working stroke, the opening spring is decoupled from the drive connection, while in the second partial working stroke, the closing spring can be decoupled from the drive connection.
  • the spring device (preferably exclusively) on a spring. This spring is then used multifunctional by generating the closing force both in the first partial working stroke and generating the opening force in the second partial working stroke.
  • the crimping tool has at least one stop.
  • the stopper provides an extreme deflection of a spring base of the spring device, which is preferably a minimum deflection.
  • a driver is present for this embodiment of the crimping tool. The driver takes in the Generalarbeitshub the spring base of the spring device and moves it away from the stop, which then changes the application of the spring.
  • the spring base of the spring device remains on the stop.
  • the loading of the spring does not change for the other partial working stroke.
  • the stopper will provide a minimum pressurization of the compression spring.
  • the pressure force in the compression spring increases.
  • the increasing pressure force of the compression spring can then be used to generate the closing force or the opening force.
  • the stop is a minimum tensile force in the tension spring, while with the further application of the tension spring by the driver, the deflection and the traction are greater.
  • two stops and associated drivers are present. At the two stops can be trapped in the equilibrium position, a single spring.
  • a Federfußdazzling the spring is taken during the first partial working stroke via a driver. In the other part of the working stroke of the other spring base is taken from the other driver.
  • each spring in the equilibrium position can each be supported on an associated stop.
  • a driver moves the spring base of a spring away from the associated stop, while the other spring base continues to remain at the associated stop.
  • the other partial working stroke then moves the other driver the Federfußtician the other spring away from the associated stop, while in this case the Federfußddling the first-mentioned spring remains supported on the stop.
  • the at least one stop and the at least one driver can be arranged on any components of the pressing or crimping tool, as long as during the power stroke, a relative movement of the components on which the stop and the driver are arranged takes place.
  • the driver is supported on a hand lever, while the associated stop is attached to a (preferably moving) jaw.
  • the stop is attached to a pliers head or carried by this, while the driver is attached to a relative to the pliers head over the power stroke moving pliers jaw or carried by this. If two stops and drivers are present, this can also apply to both stops and drivers.
  • the at least one spring of the spring device can be configured as desired.
  • a single spring is used, which is designed as a U-shaped bending spring or leaf spring.
  • Such a bending spring or leaf spring is a structurally simple spring with a long service life, in which over the cross sections of the spiral spring or leaf spring and possibly the cross-sectional profile, the course of the longitudinal axis of the spiral spring or leaf spring, the material used and the effective length of the spiral spring or leaf spring constructive stiffness and any non-linearity of the stiffness behavior can be specified.
  • the bending spring or leaf spring is U-shaped, the different spring arms of the U can be used for the design of the rigidity.
  • a particularly good integration of the U-shaped bending spring or leaf spring in the crimping or crimping tool may result for an embodiment of the invention, when the spring arms of the U-shaped bending spring or leaf spring extending in the direction of a longitudinal axis of the pliers head or in the direction of the closed lever ,
  • the crimping tool or crimping tool is equipped with a forced locking mechanism.
  • Such Zwangsgesperre ensures once reached entirelyschannegnagna the jaws against an opening. As a result, an achieved partial closing position is maintained even with a temporary elimination of the hand forces acting on the hand lever.
  • Such Zwangsgesperre allows opening of the jaws only when the power stroke is completed. With these measures, process reliability can be increased.
  • the spring means the jaws automatically back to the equilibrium position.
  • the Zwangsgesperre is designed such that this only in the second partial working stroke (or even in an end portion of the same) is effective, so that this does not hinder the desired effect of the spring means in the first partial working stroke.
  • the open position in which an inserting of the workpiece can be done in the forceps jaw
  • the open position is maintained in view of the effect of the spring device only when the user applies opening forces on the hand lever or the jaws, the application of the jaws through the spring device counteract.
  • a locking device or a locking device is provided. The latching device or locking device secures the open position, so that despite the closing force of the spring device acting in the open position, the open position can be automatically maintained.
  • a locking device is understood in particular to mean a device which brings about a detent which leads to a detent force which is greater than the closing force generated by the spring device.
  • a locking device is understood in particular to mean a device in which an open position is locked in such a way that it can not be left simply by applying closing forces (for example via the hand lever or by closing forces applied directly to the jaws). Rather, a manual actuation of a locking element is required, which then releases the lock, so that then the spring means can bring about a return of the jaws in the equilibrium position or can bring about applying the dies to the workpiece.
  • the or a spring of the spring device is multifunctional in that this spring on the one hand generates the opening force and / or the closing force. In addition, this spring also generates a locking force of the locking device or a locking force of the locking device.
  • a Rastfederarm the Rastier observed.
  • the Rastfederarm forms in this case resiliently a locking element or carries this.
  • the latching element engages in a locking manner in interaction with a counter-latching element, whereby a relative movement of the counter-latching element relative to the latching element takes place via the working stroke and in particular in the surrounding area of the open position.
  • a further embodiment of the pressing or crimping tool according to the invention has a special structural design of the crimping tool and a special drive kinetic to the object:
  • a fixed pliers part (which may be formed in one or more pieces) forms a solid jaw and a solid hand lever out.
  • a movable pliers part (which may also be formed in one or more pieces) then forms a movable pliers jaw.
  • the movable pliers part is articulated via a pivot bearing on the fixed pliers part pivotable.
  • a movable lever is pivotally articulated via a pivot bearing.
  • the movable hand lever is then connected via a drive connection (in particular a pressure lever or a toggle lever drive) with the movable pliers part.
  • the movable hand lever forms the counter-locking element.
  • the pivot bearing via which the movable pliers part is pivotally connected to the fixed pliers part, arranged in the pliers head facing away half of the longitudinal extension of the fixed pliers part (wherein the pivot bearing in this case, for example may be at a distance from the front end region of the long-head that is greater than 55%, greater than 60%, greater than 65%, greater than 70%, or even greater than 75% of the longitudinal extent of the fixed pliers portion).
  • Fig. 1 to 11 show a crimping tool 1 in plate construction.
  • the crimping tool 1 has a fixed pliers part 2 and a movable pliers part 3.
  • the fixed pliers part 2 has two fixed pliers part plates 4a, 4b.
  • the movable pliers part 3 has two movable pliers part plates 5a, 5b.
  • the fixed pliers part 2 has a fixed pliers jaw 6, a connecting region 7 and a fixed hand lever 8.
  • the fixed pliers part plate 4a forms the fixed pliers jaw 6, the connecting portion 7 and the fixed hand lever 8.
  • the fixed pliers part plate 4b forms only the fixed pliers jaw 6 and the connecting portion 7.
  • the movable pliers part 3 has a movable pliers jaw 9.
  • the movable pliers jaw 9 is held on a pivot carrier 10.
  • the movable pliers part plates 5a, 5b are formed in two parts with pliers jaw plates 11a, 11b and pivot support plates 12a, 12b.
  • the movable pliers part 3 is pivotally mounted about a pivot bearing 13 about a pivot axis 14 on the fixed pliers part 2. This is done for the illustrated embodiment by a pivot pin 15.
  • the pivot pin 15 extends through a pivoting enabling through holes 16a, 16b, 16c, 16d of the movable pliers part plates 5a, 5b and fixed pliers part plates 4a, 4b.
  • the two movable pliers part plates 5a, 5b are received between the fixed pliers part plates 4a, 4b.
  • the jaw plates 11a, 11b are attached to and held by the pivot support plates 12a, 12b such that the jaw plates 11a, 11b extend into the parallel planes defined by the fixed forceps plates 4a, 4b and move in these planes during pivoting.
  • a pressure lever 18 (which is formed here with two pressure lever plates 19a, 19b) hinged.
  • the pivot bearing 17 is formed with a pivot pin 20.
  • the pivot pin 20 is received in through holes 21a, 21b, 21c, 21d of the pressure lever plate 19b, the pivot support plate 12b, the pivot support plate 12a, and the pressure lever plate 19a. In this way, a pivot axis 22 of the pivot bearing 17 is predetermined.
  • the two pressure lever plates 19 are not disposed between the fixed pliers part plates 4a, 4b, but outside thereof.
  • the pivot pin 20 extends through slots 23a, 23b of the fixed pliers part plates 4a, 4b.
  • the elongated holes 23a, 23b are shaped and arranged such that the fixed pliers part plates 4a, 4b do not hinder the movement of the pivot pin 20 with the pivoting of the movable pliers part 3.
  • a movable hand lever 24 (which in this case has two movable hand lever plates 25a, 25b) is pivotably mounted on the fixed tong part 2 via a pivot bearing 26 with a pivot axis 27.
  • the fixed pliers part plate 4b, the manual lever plate 25b, the manual lever plate 25a and the fixed pliers part plate 4a have through holes 28a, 28b, 28c, 28d. Through the through holes 28a, 28b, 28c, 28d extends a pivot pin 29.
  • the pivot pin 29 allows a relative pivotal movement of the movable hand lever 24 relative to the fixed pliers part second
  • the pressure lever 18 is connected via a pivot bearing 30 pivotally connected to the hand lever 24.
  • the pressure lever plates 19a, 19b have through holes 31a, 31d.
  • the hand lever plates 25a, 25b have through holes 28b, 28c through holes 31b, 31c adjacent to the through holes.
  • Through the through holes 31b, 31c extends a pivot pin 32, which allows a pivoting movement. Since, for this purpose, the pivot pin 32 has to pass through the fixed pliers part plates 4a, 4b, the fixed pliers part plates 4a, 4b have slots 33a, 33b.
  • the slots 33a, 33b ensure that the degree of freedom of movement of the pivot pin 32 is not hindered.
  • a spring 34 is arranged, which is part of a spring device 35.
  • the spring 34 is formed as a U-shaped leaf spring or bending spring 36.
  • the Zwangsgesperre 37 has a pawl 38.
  • the pawl is supported by a pawl shaft 39 here.
  • the pawl shaft 39 is rotatably mounted on the pressure lever plates 19a, 19b.
  • the pawl shaft 39 extends through through holes 40a, 40b of the fixed pliers part plates 4a, 4b without restricting the degree of freedom of movement.
  • the hand lever 24 forms a locking toothing 41 in the region of its peripheral surface.
  • the pawl 38 slides ratchet-like as a result of the action of a spring 42 along the locking teeth 41.
  • the geometries of the pawl 28 and the locking teeth 41 are selected such that upon engagement of the pawl 38 in the locking teeth 41 movement reverse direction is excluded. If, however, the closed position of the crimping tool 1 is reached, the pawl 38 has passed the locking teeth 41. Thus, the pawl 38 "fold down” due to the tensile force generated by the spring 42. After folding, the pawl 38 can then slide during an opening movement along the locking teeth 41.
  • Fig. 2 It can be seen that the jaws 6, 9 each interchangeable a die 43, 44 wear.
  • a compound of the jaws 6, 9 with the dies 43, 44 use, as these in the patent DE 198 02 287 C1 is described.
  • the drive kinetics can be determined according to the illustration in Fig. 3
  • a relative movement of the pliers jaws 6, 9 take place.
  • This relative movement of the pliers jaws 6, 9 is caused by the pivoting of the hand lever 24 relative to the fixed pliers part 2 about the pivot bearing 26.
  • the hand lever 24 forms between the pivot bearings 26, 30 a first toggle 45.
  • a second toggle 46 is between the pivot bearings 17, 30 formed by the pressure lever 18.
  • the pivot bearing 30 forms the knee joint of a knee lever drive 47 formed with the toggle levers 45, 46.
  • the toggle lever drive 47 converts the pivotal movement of the hand lever 24 into a pivoting movement of the movable tong part 3 relative to the fixed tong part 2.
  • the spring device 45 will be explained in more detail: According to Fig. 4
  • the fixed pliers part 2 carries two stops 49, 50.
  • the stops 49, 50 are formed as bolts carried in through bores of the fixed pliers part plates 4a, 4b.
  • the U-shaped leaf spring or bending spring 36 bears against the associated (respectively formed by the approximately parallel side limbs of the U) spring arms 51, 52 on the outside on an associated stop 49, 50.
  • the leaf spring or spiral spring 36 and the spring arms 51, 52 may not be biased in the equilibrium position 48. But it is also possible that the leaf spring or bending spring 36 is biased so that it is braced between the stops 49, 50.
  • the driver 54, 55 On opposite sides of the leaf spring or bending spring 36 (and preferably in the free end region of the spring arms 51, 52) carries the movable pliers part 3 driver 54, 55.
  • the drivers 54, 55 are formed as driving pins, which in bores of the movable Zangenteilplatten 5a, 5b are held.
  • the driver 54 forming driving pin is designed to be multifunctional, since this also serves to attach the pliers jaw plate 11 to the pivot carrier 10.
  • equilibrium position 48 In the in the Fig. 4 and 5 shown equilibrium position 48 are the drivers 54, 55 just to the leaf spring or bending spring 36, without generating a significant contact force here.
  • Fig. 6 and 7 show the crimping tool 1 in a closed position 53, in which an angle of the hand lever 8, 24, for example in the range of 0 ° to 10 ° (preferably in the range of 0 ° to 5 °).
  • the crimping tool 1 is transferred from the equilibrium position 48 according to FIG Fig. 4 and 5 in a partial opening position 56 according to Fig. 8 and 9 or in a (maximum) opening position 57 according to Fig. 10 and 11
  • the opening angle of the hand lever 8, 24 may be in the range of 60 ° to 70 °, preferably 65 ° to 68 ° and the opening angle of the hand lever 8, 24 in the open position 57 in the range of 80 ° to 100 °, preferably 85 ° to 95 ° can be
  • the relative movement of the movable pliers part 3 relative to the fixed pliers part 2 causes the driver 54 away from the spring arm 52, while the spring arm 52 is further supported on the stop 50.
  • the increasing force has an increasing deformation of the leaf spring or bending spring 36 and the movement of the spring arm 51 away from the stop 49 result.
  • the increasing action on the leaf spring or bending spring 36 has the consequence that the leaf spring or bending spring 36 exerts a closing force on the pliers parts 2, 3 and thus the pliers jaws 6, 9.
  • the closing force is designed to restore the equilibrium position 48.
  • the crimping tool 1 has a locking device 58.
  • the open position 57 are locked in such a way that, despite the effective closing force of the spring means 35, the open position 57 is maintained. Only a manual overpressure of the latched open position 57 (which has a reduction of the latching force or complete elimination of the latching force of the locking device 58 result) allows the spring means 35 automatically restores the equilibrium position 48 by means of the closing force provided by the leaf spring or bending spring 36.
  • a latching element 60 (which in particular forms a projection [or recess]) is pressed against a counter-latching element 61 (which forms in particular a recess [or a projection]) via a detent spring 59, wherein (at least in the surrounding area of the Open position 57), a movement of the hand lever 8, 24 or the jaws 6, 9 relative to each other to a relative movement of the latching element 60 and the counter-latching element 61 leads.
  • the detent spring 59 of the locking device 58 by a Rastfederarm 62 of the leaf spring or bending spring 36 (here a longitudinal portion which extends transversely from the spring arm 52 in the direction of the hand lever 24) is formed.
  • the Rastfederarm 62 In the free end region of the Rastfederarms 62 which comes into operative connection with the hand lever 24, the Rastfederarm 62 carries a pin 63 which forms the latching element 60.
  • the counter-latching element 61 is formed in this case by a recess 64 of a latching contour 65 of the hand lever 24. With the approach to the open position 57 of the pin 63 slides with an elastic contact pressure by the Rastfederarm 62 along the locking contour 65.
  • the pressing force of the locking element 60 to the counter-locking element 61 ie the bias of Rastfederarms 62
  • the geometry of the locking contour 65 in particular the depth of the recess 64 and the inclination of the locking contour 65 in the recess 64
  • the closing force of the spring device 35 can not overcome the locking of the locking device 58. Rather, this requires the user to move the hand lever 24 in the closing direction, that the locking element 60 can be released from the counter-locking element 61 (ie, the pin 63 can escape from the recess 64).
  • leaf spring or bending spring 36 is pivotally mounted on the movable pliers part 3 via a pivot pin 66.
  • Fig. 12 and 13 show by way of example a further embodiment of the spring device 35 encompassed by the invention.
  • a coupling arm 67 of the hand lever 24 extends into the area of the movable pliers part 3.
  • the free end portion of the coupling arm 67 is in this case in the in Fig. 12 and 13 shown equilibrium position 48 caught between two compression springs 68, 69.
  • the compression spring 68 forms an opening spring 70
  • the compression spring 69 forms a closing spring 71st
  • the locking device 58 a of the fixed pliers part 2 carried latching element 60 (here a pin 63).
  • the latching element 60 occurs in interaction with a supported by an elastic Rastfederarm 62 of the hand lever 24 locking contour 65, which forms the counter-latching element 61, here a recess 64.
  • Fig. 14 shows different characteristics 74, 75, 76 for the spring force 77 of the spring device 35 in dependence on the opening angle 78 of the hand lever 8, 24.
  • These characteristics 74, 75, 76 represent schematic schematic spring force curves, which for any embodiment of the spring means 35 and Pressing or crimping tool 1 can be brought about.
  • the origin of the abscissa corresponds to the closed position 53.
  • the equilibrium position 48 is also marked.
  • the indicated maximum values of the characteristics 74, 75, 76 correlate with the open position 57.
  • positive values indicate an opening force.
  • Negative values of the ordinate represent a closing force of the spring device 35.
  • a characteristic according to the characteristic 74 can be brought about when the leaf spring or bending spring 36 is not biased in the equilibrium position 38. It should be noted, however, that under certain circumstances due to the different lever ratios of the drivers 54, 55, the characteristic 74 in the region of the equilibrium position 48 may also have a kink. This can also be selectively used constructively, if different slopes of the characteristic 74 are desired in the partial work strokes. For the embodiment according to Fig. 12 and 13 finds a characteristic 74 use when in the equilibrium position 48, the opening spring 70 and the closing spring 71 are not biased and the opening spring 70 and the closing spring 71 have the same spring stiffness.
  • Dashed characteristic 75 has a jump in the equilibrium position. This may be desirable if a particularly stable equilibrium position 48 is to be ensured with relatively large restoring forces in the same and / or in the two partial working strokes, the characteristic 75 should have a relatively low slope at a high force level.
  • Such a characteristic 75 can for the embodiment according to Fig. 1 to 11 be brought about by in the equilibrium position 48, the leaf spring or bending spring 36 between the stops 49, 50 is biased.
  • the amount of bias specifies the amount of jump in characteristic 75.
  • the slope of the characteristic 75 in the two partial work areas is predetermined by the bending stiffness of the leaf spring or bending spring 36. For the exemplary embodiment according to FIG Fig.
  • a characteristic 75 can be brought about by the opening spring 70 and the closing spring 71 are biased in the equilibrium position 48, without this (due to the interaction between the annular shoulders 72, 73 with the stops 49, 50) a force on the drivers 54, 55 produce.
  • Fig. 14 dot-dashed a characteristic 76, in which not the exact equilibrium position 48 is stable. Rather, the spring device generates in a surrounding area around the equilibrium position 48 no spring force, so that this surrounding area is multistable. Only when this surrounding area is left, the illustrated characteristic 76 has a jump with then further increasing opening force or closing force.
  • a characteristic 76 can be brought about by applying, for the embodiment according to FIG Fig. 1 to 11 not in the equilibrium position as shown, the two drivers 54, 55 already bear against the leaf spring or bending spring 36, but these are still spaced from this. The distance between the drivers 54, 55 of the leaf spring or bending spring 36 thus provides the surrounding area around the equilibrium position 48, for which no opening force and no closing force is generated. For the resulting characteristic then the leaving of the surrounding area (deviating from the illustrated characteristic 76) leads to jumps of the same height with subsequent equal slope of the characteristic in the partial work strokes 79, 80.
  • a characteristic such as the illustrated characteristic 76 can be brought about by the drivers 54, 55 are arranged in the equilibrium position 48 spaced from the two abutting on the stops 49, 50 compression springs 68, 69 here. It is possible by choosing different bias voltages the compression springs 68, 69, that (in accordance with the illustrated characteristic 76) the jumps when leaving the surrounding area of the equilibrium position 48 have a different height. Quite possible then is that compression springs 68, 69 are used with different stiffness, so that in the two partial strokes the characteristic has 76 different slopes.
  • a first partial working stroke 79 indicates operating positions of the crimping tool 1 between the open position 57 and the equilibrium position 48, while a second partial working stroke 80 positions of the crimping tool 1 between the equilibrium position 48 and the closed position 53 denotes.
  • the entire stroke between the open position 57 and the closed position 53 is indicated as a working stroke 81.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Manufacturing Of Electrical Connectors (AREA)
  • Hand Tools For Fitting Together And Separating, Or Other Hand Tools (AREA)
  • Gripping Jigs, Holding Jigs, And Positioning Jigs (AREA)
EP18166729.6A 2018-04-11 2018-04-11 Outil de sertissage Active EP3553899B1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
EP18166729.6A EP3553899B1 (fr) 2018-04-11 2018-04-11 Outil de sertissage
JP2019070350A JP7570082B2 (ja) 2018-04-11 2019-04-02 圧着工具
US16/377,521 US11424587B2 (en) 2018-04-11 2019-04-08 Crimping tool
TW108112320A TWI794467B (zh) 2018-04-11 2019-04-09 壓接工具
CN201910288303.0A CN110355724B (zh) 2018-04-11 2019-04-11 压接工具

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP18166729.6A EP3553899B1 (fr) 2018-04-11 2018-04-11 Outil de sertissage

Publications (2)

Publication Number Publication Date
EP3553899A1 true EP3553899A1 (fr) 2019-10-16
EP3553899B1 EP3553899B1 (fr) 2021-01-27

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EP18166729.6A Active EP3553899B1 (fr) 2018-04-11 2018-04-11 Outil de sertissage

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US (1) US11424587B2 (fr)
EP (1) EP3553899B1 (fr)
JP (1) JP7570082B2 (fr)
CN (1) CN110355724B (fr)
TW (1) TWI794467B (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD931699S1 (en) * 2019-12-04 2021-09-28 Hanlong Industrial Co., Ltd. Crimping base
USD901268S1 (en) * 2020-07-07 2020-11-10 Shenzhenshi Qinbaokeji Youxiangongsi Crimping tool
USD901270S1 (en) * 2020-07-21 2020-11-10 Shenzhenshi Qinbaokeji Youxiangongsi Crimping tool
USD906075S1 (en) * 2020-07-21 2020-12-29 Shenzhenshi Qinbaokeji Youxiangongsi Crimping tool
CN222107243U (zh) * 2024-02-26 2024-12-03 乐清市胜搏工具有限公司 一种压线钳结构

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WO1993019897A1 (fr) * 1992-04-06 1993-10-14 Pressmaster Tool Ab Outil de sertissage
US5280716A (en) * 1992-11-13 1994-01-25 The Whitaker Corporation Crimping tool
DE19709639A1 (de) 1997-03-08 1998-09-10 Wezag Gmbh Zange zum Verpressen von Fassungen, Rohren, Kabelschuhen u. dgl.
DE19802287C1 (de) 1998-01-22 1998-12-24 Wezag Gmbh Preßzange mit auswechselbaren Preßbacken
DE19834859C2 (de) 1998-08-01 2001-01-11 Wezag Gmbh Zange zum Verpressen von Werkstücken
DE19963097C1 (de) 1999-12-24 2001-04-12 Wezag Gmbh Zange zum Verpressen eines Werkstücks
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DE10346241B3 (de) 2003-10-06 2004-08-12 Wezag Gmbh Werkzeugfabrik Zange zum Verpressen von Werkstücken
DE102008005472B3 (de) 2008-01-22 2009-02-26 Wezag Gmbh Werkzeugfabrik Presszange
DE102007001235B4 (de) 2007-01-08 2010-06-02 Wezag Gmbh Werkzeugfabrik Presszange zum Verpressen von Werkstücken
EP2995424A1 (fr) 2014-09-11 2016-03-16 Wezag GmbH Werkzeugfabrik Pince
EP3208044A1 (fr) 2016-02-18 2017-08-23 Wezag GmbH Werkzeugfabrik Pince comprenant un systeme de levier a genouillere

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Publication number Priority date Publication date Assignee Title
US4048877A (en) * 1975-03-25 1977-09-20 Pressmaster Ltd. Device, particularly of the pliers or scissors type
WO1993019897A1 (fr) * 1992-04-06 1993-10-14 Pressmaster Tool Ab Outil de sertissage
US5280716A (en) * 1992-11-13 1994-01-25 The Whitaker Corporation Crimping tool
DE19709639A1 (de) 1997-03-08 1998-09-10 Wezag Gmbh Zange zum Verpressen von Fassungen, Rohren, Kabelschuhen u. dgl.
DE19802287C1 (de) 1998-01-22 1998-12-24 Wezag Gmbh Preßzange mit auswechselbaren Preßbacken
DE19834859C2 (de) 1998-08-01 2001-01-11 Wezag Gmbh Zange zum Verpressen von Werkstücken
DE19924086C2 (de) 1999-05-26 2002-08-08 Wezag Gmbh Zange zum Verpressen von Fassungen, Rohren, Kabelschuhen und dgl.
DE19924087C2 (de) 1999-05-26 2002-06-20 Wezag Gmbh Zange zum Verpressen von Fassungen, Rohren, Kabelschuhen und dgl.
DE19963097C1 (de) 1999-12-24 2001-04-12 Wezag Gmbh Zange zum Verpressen eines Werkstücks
DE10346241B3 (de) 2003-10-06 2004-08-12 Wezag Gmbh Werkzeugfabrik Zange zum Verpressen von Werkstücken
DE102007001235B4 (de) 2007-01-08 2010-06-02 Wezag Gmbh Werkzeugfabrik Presszange zum Verpressen von Werkstücken
DE102008005472B3 (de) 2008-01-22 2009-02-26 Wezag Gmbh Werkzeugfabrik Presszange
EP2995424A1 (fr) 2014-09-11 2016-03-16 Wezag GmbH Werkzeugfabrik Pince
EP3208044A1 (fr) 2016-02-18 2017-08-23 Wezag GmbH Werkzeugfabrik Pince comprenant un systeme de levier a genouillere

Also Published As

Publication number Publication date
JP2019188591A (ja) 2019-10-31
TW201943506A (zh) 2019-11-16
EP3553899B1 (fr) 2021-01-27
CN110355724A (zh) 2019-10-22
TWI794467B (zh) 2023-03-01
US20190319417A1 (en) 2019-10-17
JP7570082B2 (ja) 2024-10-21
US11424587B2 (en) 2022-08-23
CN110355724B (zh) 2022-05-03

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