EP3718179A1 - Pince-étau - Google Patents

Pince-étau

Info

Publication number
EP3718179A1
EP3718179A1 EP18800107.7A EP18800107A EP3718179A1 EP 3718179 A1 EP3718179 A1 EP 3718179A1 EP 18800107 A EP18800107 A EP 18800107A EP 3718179 A1 EP3718179 A1 EP 3718179A1
Authority
EP
European Patent Office
Prior art keywords
jaw
pressing
fixed
lever
support member
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
EP18800107.7A
Other languages
German (de)
English (en)
Other versions
EP3718179B1 (fr
Inventor
Benjamin WEISHEIT
Georg Holland-Moritz
Gerhard König
Marko ENDTER
Ralf Legler
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.)
Rennsteig Werkzeuge GmbH
Original Assignee
Rennsteig Werkzeuge GmbH
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 Rennsteig Werkzeuge GmbH filed Critical Rennsteig Werkzeuge GmbH
Priority to PL18800107T priority Critical patent/PL3718179T3/pl
Priority to SI201830616T priority patent/SI3718179T1/sl
Publication of EP3718179A1 publication Critical patent/EP3718179A1/fr
Application granted granted Critical
Publication of EP3718179B1 publication Critical patent/EP3718179B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • 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
    • B25B27/146—Clip clamping hand tools
    • 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
    • B25B7/12—Pliers; Other hand-held gripping tools with jaws on pivoted limbs; Details applicable generally to pivoted-limb hand tools involving special transmission means between the handles and the jaws, e.g. toggle levers, gears
    • 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 invention relates to a pressing tongs for pressing, in particular crimping, of workpieces, with two oppositely arranged pressing jaws and two jaws, wherein a jaw is fixed and the associated pressing jaw is fixed to this fixed jaw by means of a federbaren support member, wherein the support member its end remote from the pressing jaw is firmly connected to the jaw.
  • Pressing tongs of the type in question are known, so on, in particular in training as hand-operated pressing tongs. These are used in particular for attaching and connecting so-called wire end sleeves to cable ends.
  • Such pressing tongs are provided with fixed or exchangeable pressing jaws, which are movable against each other like pincers.
  • the pressing jaws act here in the manner of a notched die, for molding-forming pressing of the body inserted between the pressing jaws.
  • EP 732 779 B1 US Pat. No. 6,176,116 B1
  • DE 198 18 482 C1 US Pat. No. 6,151,950 A
  • hand-operated pressing tongs are suitable for pressing compacts in different cross-sectional dimensions, preferably using the same pressing jaws. Since the working path for the user always has to remain at least approximately the same when the forceps jaws are displaced, and if necessary must be the same in dependence on a lever geometry, it is necessary to press different sizes of cross-section. Using the same pressing jaws, cut a force-displacement compensation to be achieved inside the jaw. This is achieved in accordance with EP 732 779 B1 by arranging a spring lever rigidly connected to a jaw at the end. According to DE 198 18 482 CI, a transmission lever is provided for this purpose, which supports one of the pressing jaws.
  • a possible solution of the problem is given according to a first Erfindungs- thought in a crimping pliers, which is geared to that formed between the fixed connection and the first pressing jaw facing the end of the support member, a stop connection between the fixed jaw and the support member is that comes into effect when a predetermined pressing force is exceeded.
  • a pressing tongs is specified, by means of which pressings of pressed pieces of different cross sections can be carried out, for example cross sections starting from about 0.05 mm 2 up to about 16 mm 2 or 20 mm 2 .
  • these compressions can thus be carried out without an adaptation of the pressing teeth to be carried out, namely preferably without a change of the pressing jaws and moreover preferably without an adjustment, in particular adjustment to be performed manually.
  • very different displacement angles result directly in the area of the pressing jaws or the end jaws of the jaws holding the pressing jaws. paths, which must be balanced while maintaining the same displacement paths of the user to be operated jaw grip areas.
  • the holding may be approximately in part initially over its entire length between the permanent connection and the press back side according to the end of the material's own elasticity to be resiliently bent, if necessary, to an activation of the stop Getting Connected, which in particular between the on further pressing force Stop connection and the press-jaw end end ergebbende support section performs a greater bend than the resulting in this stop position support section between the stop connection and the fixed connection. If necessary, this can have the effect that only in the area of the holding part extending resiliently beyond the stop connection (correspondingly between the stop connection and the press-jaw-side end) does a further bending result.
  • the stop connection is formed by a stop section of the forceps jaw, which, according to a bending deformation of the holding part, comes into contact with the holding part in the course of an application of pressing force.
  • the pliers jaw-side stop portion extends correspondingly preferably in the bending region of the support member, for possible interaction with a facing surface of the support member, for example. A marginal edge surface of the support member.
  • the stop portion of the jaw provides the support member with a support, spaced both to the fixed connection with the jaw and spaced from the free, the jaw bearing end of the support member.
  • the stopper portion may act against the support member with respect to a maximum longitudinal extension direction of the support member approximately in a middle third between the fixed connection with the jaw jaw and the free end of the support member supporting the press jaw.
  • the abutment portion may be formed as a pin received in a slot of the retainer portion.
  • the elongated hole in question may be formed in the holding part, as may also be preferred.
  • the then pliers jaw-side pin according to a bending deformation of the support member in the course of an application of pressing force to a boundary portion of the slot come to the plant.
  • the slot may be aligned appropriately in accordance with a bending direction of the support member viewed from the pin.
  • the pin may also be formed on the support pin, for cooperation with a pliers jaw-like slot.
  • a smallest cross-section of the holding part resulting between the fixed connection and the stop section can, preferably, be chosen larger than a smallest cross-section between the stop section and the holding area of the holding part for the associated pressing bed.
  • a dimension or a surface is considered which, viewed in the direction of displacement of the journal or of the elongated hole of the abutment connection.
  • the respectively smallest cross-section can in each case arise approximately in the center of the above-described holding part regions, more preferably approximately in a middle third of the respective holding part region, with respect to a greatest longitudinal extension direction of the holding part, furthermore in an outgoing from the fixed connection in each case outer third of the respective part of the support member, possibly transiently in the middle third of the support member area.
  • an effective bending cross section of the holding part can increase by 10% or more, for example up to 50% or more up to 80%, be greater than in the region of the smallest cross-section, this considered preferably over the entire length of the support member between the fixed connection and the end cheek-carrying end portion and further viewed in a side view in which relative to a horizontal largest length of the support member results.
  • the bending cross-section is preferably along a vertical with respect to a maximum longitudinal direction of the support part.
  • the support member may be formed as a flat part, with a smaller compared to its length thickness.
  • the length of the holding part in the longitudinal direction of extension for example, may correspond to 10 to 50 times, further to about 25 to 40 times the thickness of the flat part considered perpendicular thereto.
  • the smallest cross section of the holding part can be dimensionally about 1 to 5 times the holder part thickness.
  • the holding part may have a concave course with respect to a geometric center longitudinal line, as viewed from the movable jaw.
  • the mounting part as a whole, but essentially with respect to the central longitudinal line, can extend arcuately curved, possibly having a constant radius with respect to the curvature, but also having different radii with respect to the curvature over the length of the center longitudinal line.
  • the movable forceps jaw can be mounted on the fixed forceps jaw and on a movable handle part by means of a continuous material-uniform lever part. Furthermore, the movable forceps jaw can have a free end area for holding the second press jaw.
  • the lever part may be due to a conventional handle pivoting movement be pivoted about the axis of rotation in the area of the fixed jaw, for the corresponding sliding displacement of the arranged second press jaw in the direction of the opposing first pressing jaw of the fixed jaw.
  • a so-called toggle joint can be provided in this regard.
  • the lever part of the movable jaw in a range between 1/3 and 2/3 of the distance between the bearing of the lever member to the fixed jaw and the bearing of the lever member to the movable handle part or between Give the bearing of the lever part on the fixed jaw and the free end area of the lever part a region of greatest deformation when applying a pressing force.
  • the lever part of the movable forceps jaw can also be designed to be resilient overall or in sections, wherein in a preferred embodiment the springability results solely from the material elasticity value of the lever part.
  • both the holder receptacle for a holding jaw or lever element forming a pressing jaw can resiliently deflect when a predetermined pressing force is exceeded to compensate for the force path.
  • FIG. 1 is a perspective view of a pressing tongs in a press-open position
  • FIG. Fig. 2 is the side view of this;
  • Fig. 4 is an enlarged front view against the pressing tongs
  • FIG. 5 shows the enlargement of the region V in FIG. 1;
  • FIG. 6 is a sectional view according to the sectional plane VI in FIG. 5; FIG.
  • FIG. 7 shows the enlargement of the area VII in FIG. 6;
  • FIG. 8 is a detailed perspective view of the pressing jaw arrangement, concerning the pressing jaw open position
  • FIG. 9 shows a further perspective view of the pressing jaw arrangement, viewed in the direction of arrow IX in FIG. 8;
  • FIG. 10 shows a representation corresponding to FIG. 9, but after removing plug-in parts which fix the pressing jaws on the pressing tongs;
  • FIG. 11 shows the pressing jaws with associated pivot pins and plug-in parts in a perspective exploded view
  • FIG. 12 shows the section according to the line XII-XII in FIG. 4 through the press-jaw arrangement
  • FIG. FIG. 13 shows a representation corresponding to FIG. 12, but in the course of a common rotation of the pressing jaw pair;
  • FIG. 14 shows in a detail view a pivot pin designed to hold a press bed
  • Fig. 15 is another view of the pivot pin
  • FIG. 17 is an illustration substantially corresponding to FIG. 9, but after the holder of a pressing jaw has been removed from the associated pivot pin and the pair of pressing blocks are pivoted away into a removal position;
  • FIG. 18 shows the section according to the line XVIII-XVIII in FIG. 3;
  • FIG. 19 is a Thomasdar Se ttings according to the sectional plane XIX in Figure 8 with an engaged in the pressing mouth workpiece, on a pressing jaw open position.
  • FIG. 20 shows the view according to arrow XX in FIG. 19; FIG.
  • Fig. 21 is a representation corresponding to FIG. 18, relating to a
  • Fig. 22 is a representation corresponding to FIG. 19, concerning the
  • FIG. 23 shows the view according to arrow XXIII in FIG. 22;
  • FIG. 24 is a sequence view of FIG 22 in the course of a further pressing jaws V erlagerung;
  • FIG. 25 shows the view according to the arrow XXV in FIG. 24 with a further magnifying view in the form of a magnifying glass
  • FIG. 26 is a sequence view of FIG. 21 concerning an intermediate position under a first bending deflection of a holding part acting on a pressing jaw;
  • FIG. 27 shows the holder part in a detail view
  • FIG. 28 is a sequence view of FIG. 26 in the course of the further pressing operation, with further resilient deflection of the holding part.
  • FIG. Pair are arranged opposite one another.
  • the jaw 2 and the associated handle part 4 are hereinafter referred to as fixed, while the jaw 3 and the associated handle part 5 is further referred to as movable.
  • the first pressing jaw 6 is assigned to the fixed jaw 2, while the movable jaw 3 carries the second pressing jaw 7.
  • the fixed forceps jaw 2 is essentially composed of two essentially identically shaped jaw parts 8, which are spaced apart from one another transversely to the longitudinal extension of the forceps jaw 2, the ends, in the regions facing away from the pressing jaws 6 and 7, merge into the rigid one
  • the latter like the movable grip part 5, can be encompassed by a grip cover 9 or 10, respectively.
  • the movable forceps jaw 3 is rotatable about a geometric rotation axis x on the fixed forceps jaw 2 supported, wherein a rotational open position is stop-limited, according to a support of a stopper portion 11 of the movable jaw 3 at a portion of the fixed jaw 2, for example, as shown, at one between the jaw parts 8 of the fixed Pliers jaw 2 extending in the direction of extension of the axis of rotation x 12th
  • the axis of rotation x runs essentially transversely to the direction of longitudinal extension, in particular of the fixed forceps jaw 2 and of the adjoining grip part 4.
  • the movable forceps jaw 3 is spring-loaded in the direction of its stop-limited rotational open position.
  • a spring 13 preferably as provided in the form of a cylinder tension spring, is provided, which engages on one of the associated second press jaw 7 facing away from the lever end of the movable jaw 3.
  • the forceps jaw 3 opposite end of the spring 13 is connected to a further pin 14 of the fixed jaw 2.
  • lever sections extending away from one another extend, such as a lever section projecting substantially in the direction of the grip part 5, at the end of which the spring 13 engages, and one essentially from the grip part 5 facing away, directed towards an end face of the pressing tongs 2 lever portion, at the end region of the associated second pressing jaw 7 is supported.
  • the movable forceps jaw 3 is preferably formed by a continuous material-like, plate-like lever part 15.
  • the movable handle portion 5 is hinged substantially end of the acted upon by the spring 13 lever portion 17.
  • the relevant geometric axis of rotation y extends in a parallel orientation to the geometric axis of rotation x of the movable forceps jaw 3. It results in conjunction with a ratchet arm 18 a knee joint K with respect to the articulation of the handle part 5 and the action on the handle part 5 on the forceps jaw 3.
  • the ratchet arm 18 is articulated at one end to the fixed forceps jaw 2 and at the other end to the movable grip portion 5.
  • the geometric rotary axes thereof also extend parallel to the geometric axis of rotation x as well as to the geometric axis of rotation y.
  • ratchet arm 18 At the ratchet arm 18 is a toothed ratchet portion 19 formed excluded for cooperating MPACT upon actuation of the crimping tool 1 with a
  • the movable handle part 5 pivotally hinged pawl 20.
  • the latter is spring-biased due to the arrangement of a tension spring 21 in the movable handle part 5 in a basic position.
  • an adjustment of the knee joint arrangement K is made possible by an externally accessible to the fixed jaw 2 to the geometric axis of rotation about which also the ratchet arm 18 in the fixed jaw 2 is movable rotatable adjusting member 22nd provided that can be locked in several rotational positions.
  • the adjusting member 22 acts via an eccentric, not shown on the festbacken workede axis of rotation of the ratchet arm 18, so that hereby a corresponding linear displacement of the relevant geometric axis of rotation can be achieved.
  • the first pressing jaw 6 is attached to the end of a spring-holding part 23.
  • a center line a of the holding part 23 that extends essentially in the longitudinal direction of the fixed jaw 2 and its extension into the stationary grip part 4
  • the movable jaw 3 and the movable grip part 5 show a substantially concave course, in particular in the region of a holding part section 24 between the free, the first pressing jaw 6-holding end and a stop connection 25 described in more detail below.
  • the support part 23 is preferably flanked on both sides by the bridge parts 8 of the fixed forceps jaw 2, the support part section 26 facing away from the end bearing the first press base 6 being connected at the end to the fixed forceps jaw 2, corresponding to the jaw parts 8, and / or the fixed handle part 4 is connected.
  • a fixed connection 27 by two in Extension direction of the center line given a mutually spaced pin connections.
  • the pressing jaws 6, 7 are formed to the opposite arrangement in the pressing tongs 1.
  • One or both pressing jaws 6, 7 have ribs 29, 31.
  • the ribs 29, 31 have, according to a profile of their free ends, projected onto a base surface, a rib longitudinal direction R, cf.
  • Fig. 11 In a pressing, the ribs 29, 31, usually over part of their height H, see. also Fig. 11, inratfahren. Reference is also made to FIGS. 6, 7.
  • the guide surface can also be given in the transverse direction thereto. In the illustrated embodiment, this is by a corresponding pointing in this direction end face S, if necessary, on both sides opposite, a guide before jumping 38 given, see.
  • the guide surface possibly given in the transverse direction serves less to limit the displacement and, if necessary, to provide additional guidance in the sense of a finearm guidance of the pressing jaws relative to each other. A relevant limitation of displacement is preferably already achieved by the intermeshing ribs.
  • the pressing jaws 6 and 7 are preferably designed the same, this further preferably first having a base body 28, on which, first with respect to the pressing jaw 6, the ribs 29 are arranged.
  • the Ribs 29 and the main body 28 are, as preferred, integrally formed of the same material.
  • the ribs 29 of the pressing jaw 6 have the rib longitudinal direction R. With respect to a viewing direction perpendicular to this rib longitudinal direction R, substantially triangular ribs 29 result with a substantially perpendicular to the main body 28 or perpendicular to the rib longitudinal direction R extending outer rib end surface 30. From this rib end surface 30, the falls in the rib longitudinal direction R extending, the opposite pressing jaw facing end face in the direction of the main body 28 from.
  • Rectilized ribs of a pressing jaw 6 and 7 are arranged at a distance from one another transversely to the longitudinal direction R of the ribs, in particular at a distance which substantially corresponds to the rib thickness considered in the spacing direction.
  • a pressing jaw 6 and 7 partially dip further ribs of the same pressing jaw 6 and 7, respectively.
  • the further further ribs 29 engaging in the intermediate spaces of the previously described ribs 29 are substantially mirror-inverted, but preferably a rib width offset, arranged, according to also a substantially vertical to the main body 28 extending outer rib end surface 30 having, the rib end faces 30 of the above-described ribs 29 are opposite.
  • These further ribs 29 also drop off in the rib longitudinal direction in the direction of the main body 28.
  • the opposing pressing jaw 7 is designed to have triangular ribs 31 with outer rib end faces 32 correspondingly with respect to a plan view viewed from the front side.
  • pressing jaw opening 33 33 sets preferably square, more preferably square plan.
  • the edge length of the pressing jaw opening 33 can be changed uniformly in the course of a changing linear spacing of the pressing jaws 6 and 7 relative to one another.
  • each rib 29, 31 has a free end face 34, with a in cross-section as shown in Fig. 7 transversely to the rib longitudinal direction resulting, center most rounded top contour line 35.
  • This rounded or curved running The contour line 35 extends between the flank contour 36 of the rib 29, 31 which extends preferably rectilinearly with respect to a direction of convergence r of the pressing jaws 6 and 7, with a further flank contour 36 running on both sides with respect to a rib 29, 31 is preferably provided.
  • the result is preferably a concave curved contour line 35.
  • the curved contour line 35 can extend continuously over the entire rib thickness viewed transversely to the rib longitudinal direction, in this case, for example. having (constant) radius of curvature, which may correspond to half the Rip- pendickenberg.
  • the continuous curvature of the contour line 35 may possibly be interrupted by a most projecting region of the rib 29, 31 mitreenden, with respect to the cross-section approximately central flattening
  • each press jaw 6, 7 connected to the respective base body at least one guide projection 38, with a length considered in the direction of convergence r, which substantially the arranged in the same direction length on the same body 28 arranged ribs 29 and 31st can correspond.
  • the guide projection 38 Transversely directed to the rib longitudinal direction, the guide projection 38 extends over a dimension which, in the illustrated embodiment, covers the arrangement of two or three ribs 29, 31. Further, the guide projection 38 extends along the associated rib end surface 30 and 32, respectively.
  • the guide projection 38 cooperates with the rib end faces 30 and 32 forming a guide surface.
  • Such a support via a guide projection 38 is provided opposite in the longitudinal direction of the ribs, the opposite guide projections 38 being on one side twice, leaving out a central insertion opening 39 remaining therebetween and preferably only on the opposite side Retraction into the central entry opening of the other pressing jaw 6, 7 is given.
  • the pressing jaws 6 and 7 are rotatable together in the utilization position between the fixed jaw 2 and the movable jaw 3 about a rotation axis z, which is in the direction of movement r and transverse is directed to the geometric axes of rotation x and y of the movable jaw 3 and the movable handle part 5.
  • This possible rotation is independent of the collation position of the pressing jaws 6 and 7, i. 2, as well as in a pressing tongs end position, eg. As shown in Fig. 28, as well as in any intermediate position between the basic position and the end position in the press-jaw home position, for example.
  • a pivot pin 43 is initially respectively assigned to a pressing jaw 6 or 7. This sits, passing through the lower surface 41, in a shape-adapted depression 44 of the main body 28 of the pressing jaw 6, 7.
  • the pressing jaw 6, 7 is rotatable relative to the pivot 43 about the axis of rotation z, while the pivot 43 with respect to the axis of rotation z preferably not displaceable25nom in the respective associated end of the jaw 2, 3 or the lever member 15 or support member 23 - men is.
  • the pressing jaw 6 or 7 can be mounted detachably on the respective pivot 43.
  • a U-shaped plug-in part 45 is provided which, if appropriate, can be inserted or removed transversely to the axis of rotation z from the end face which also forms the press jaw opening 33.
  • the base body 28 of the pressing jaw 6, 7 two parallel and transverse to the axis of rotation z extending channels 46 are provided, through which in the unloaded state preferably parallel to each other running U-legs of the male part 45 can be inserted.
  • the channels 46 hereby cross the recess 44 which essentially receives the pivot pin 43 (compare FIG. 11).
  • the pivot pin 43 can be provided with a polygonal cross-section, at least in the section cooperating with the plug-in part 45.
  • the pressing jaw 6, 7 can be released from the pivot 43 for removing the pressing jaw 6, 7.
  • Each pivot 43 may also be attached via a pivot joint 47 on the associated jaw 2, 3 or on the associated lever member 15 or support member 23.
  • the geometric pivot axis u is transverse to the axis of rotation z, possibly, as well as preferably, aligned parallel to the geometric axes of rotation x and y of the movable jaw 3 and / or the movable handle part. 5
  • a pivot pin 48 is integrally formed on the pivot 43 in extension of the section received in the base 28 of the press jaw 6, 7, which can be covered on both sides by guide jaws 49 which are enlarged relative to the journal diameter.
  • the respective pivot pin 48 is in a shape-adapted cavity 50 of the associated jaw 2, 3 or the associated lever part 15th or receiving part 23, which cavity 50 preferably extends in cross-section as shown in FIG. 15 over half the circumferential extent of the pivot pin 48 so as to offer a captive support for the pivot 43.
  • the pivot pin 43 leaves the recess 44, where, after a total of the pressing jaw pair about the pivot axis u of the second, the movable jaw 3 associated pressing jaw 7 can be pivoted forward, for example.
  • the pivot angle of about 15 ° to 30 ° By a pivot angle of about 15 ° to 30 ° , In this position, but also previously possible, the further plug-in part 45 of the second pressing jaw 7 can then be removed, after which the pressing jaw pair as a whole can be removed from the pivot pin 43 of the second pressing jaw 7.
  • the assembly of a pair of pressing jaws takes place in reverse order.
  • first the second pressing jaw 7 can be released from the associated pivot pin 43 and thereafter displaced in the direction of the first pressing jaw 6, after which the pressing jaw pair is swung forwards around the pivoting axis u of the first pressing jaw 6, the first pressing jaw 7 is released from the pivot pin 43 and finally the so-released pressing jaw pair is removed.
  • the fixed jaw 2 the associated pressing jaw 6 is connected by means of the already mentioned support member 23 with the fixed jaw 2.
  • the holding part 23 is basically springable in the sense that it can yield resiliently against the pressing direction. In the connection region of the fixed connection, there is no or at least practically no relative movement between the holding part 23 and the fixed jaw 2 when pressing with the pressing tongs.
  • the support part 23 can move relative to the stationary jaw 2 when pressed.
  • the movement results at least essentially by an elastic deformation with respect to the forces acting on the pressing jaw 6 during the pressing, which are absorbed by the holding part 23.
  • this movability is limited by a stop which is formed on the holding part 23 and / or the fixed jaw 2 and with a corresponding force or deformation of the holding part 23 to a stop connection between the holding part 23 and the fixed jaw 2 leads.
  • this abutment connection is reached, a shortening of the springable area of the holding part 23 results, as it were.
  • the holding part 23 no longer elastically deviates by a corresponding amount by which it has previously evaded with a corresponding amount of force.
  • there is still another penetrability there is still another penetrability.
  • the stop connection 25 provided in the region of the holding jaw part 2 which is assigned to the fixed jaw 2 is provided by a stop which is formed concretely and preferably by a stop section 51.
  • the stop can against a peripheral edge of the support member 23 to the plant come.
  • the holder part 23 has a slot 53 in which the stop, here preferably in the form of the pin 52, is accommodated. In the given case, if so far provided, the oblong hole 53 extends with its longitudinally directed central axis essentially approximately perpendicular to the prescribed center line a of the holding part 23.
  • the oblong hole 53 has a width adapted to the diameter of the pin 52, while the length considered perpendicular to it may correspond to approximately 1.5 to approximately 2 times the pin diameter.
  • the support member 23 is suitable for bending deformation in the course of an application of pressing force, in particular to a bending V erformung substantially against the Georgiafahrraum r and transverse to the center line a.
  • the slot 53 in the holder part 23 can bear against the stop section 51 or the pin 52 come.
  • the support part 23 experiences support only in this contact position in the region of the abutment connection 25, which, in the course of a further introduction of pressing force, for example during pressing of larger workpieces W, results in predominantly bending stress of the support part 23 alone in the support part - Section 24 effects.
  • the support member 23 is preferably formed as a flat part, with a smaller compared to its length 1 thickness d.
  • the length 1 corresponds to approximately 15 to 30 times, further approximately 20 times the thickness d.
  • the support member is also preferably practical directly to a corresponding flat side of the fixed jaw 2.
  • smallest cross section b, b 1 viewed transversely to the center line a.
  • the smallest cross section (dimension b 1 ) between the fixed connection 27 and the abutment connection 25 is preferably larger than the smallest cross section (dimension b) between the abutment connection 25 and the mounting region for the first pressing jaw 6.
  • the dimension of the smallest cross-section 6 between the stop connection 25 and press-jaw holder can correspond to 0.3 to 0.8 times the dimension of the smallest cross-section b 1 between the stop connection 25 and the fixed connection 27.
  • the force-displacement compensation is supported by a possible bending deformation in the range of the movable jaw 3 associated, or this jaw 3 directly forming the lever part
  • a pressing tongs which is characterized in that between the fixed connection 27 and the first pressing jaw 6 facing the end of the support member 23, a stop connection 25 between the fixed jaw 2 and the support member 23 is formed, which when a predetermined pressing force for Effect comes.
  • a pressing pincer formed which is characterized in that the stop Getting Connected 25 by a stop portion 51 of the jaw 2 is that comes due to a bending deformation of the support member 23 in the course of an application of pressing force to the support member 23 to the plant.
  • a pressing tongs which is characterized in that the abutment portion 51 is formed as a pin 52 received in a slot 53 of the holding part 23.
  • a pressing tongs which is characterized in that a smallest cross-section b 1 of the support member 23 between the fixed connection 27 and the stopper portion 51 is greater than between the stopper portion 51 and the support portion of the support member for the associated pressing jaw 6th
  • a pressing tongs which is characterized in that in an area between 1/3 and 2/3 of the distance c between the stopper portion 51 and the fixed connection 27 and between the support portion and the stopper portion 51, an effective bending cross section of the support member 23rd 10% or more larger than in the area of the smallest cross section.
  • a crimping pliers which is characterized in that the holding part 23 is formed as a flat part, with a compared to its length 1 of small thickness d.
  • a crimping pliers which is characterized in that the support part 23 in the unloaded state with respect to a central longitudinal line a a, seen from the movable pliers jaw 3, a concave profile.
  • a pressing tongs which is characterized in that the movable jaw 3 by means of a continuous material-uniform lever member 15th is stored on the fixed jaw 2 and on a movable grip part 5 and further has a free end region, for retaining the second pressing jaw 7.
  • a pressing tongs which is characterized in that with respect to the lever part 15 in a range between 1/3 and 2/3 of the distance between the bearing of the lever member 15 on the fixed jaw 2 and the bearing of the lever member 15th on the movable grip part 5 or between the bearing of the lever part 15 on the fixed forceps jaw 2 and the free end region of the lever part can result in the application of a pressing force a region of greatest deformation.

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Hand Tools For Fitting Together And Separating, Or Other Hand Tools (AREA)
  • Gripping Jigs, Holding Jigs, And Positioning Jigs (AREA)
  • Manufacturing Of Electrical Connectors (AREA)
  • Surgical Instruments (AREA)
  • Food-Manufacturing Devices (AREA)
  • Processing Of Terminals (AREA)
  • Nonmetallic Welding Materials (AREA)
  • Eye Examination Apparatus (AREA)

Abstract

La présente invention concerne une pince-étau (1) pour presser, en particulier sertir, des pièces à sertir (W), munie de deux mâchoires de serrage disposées en regard (6, 7) et deux mâchoires de pince (2, 3), dont une mâchoire de pince (2) est fixe tandis que la mâchoire de serrage associée (6) est fixée à cette mâchoire de pince fixe (2) au moyen d'une partie de maintien élastique (23) qui est reliée de manière fixe à la mâchoire de pince (2) par son extrémité à l'opposé de la mâchoire de serrage (6). Selon l'invention, pour perfectionner une pince-étau de l'art susmentionné en particulier en ce qui concerne la compensation force-déplacement, une liaison en butée (25) entre la mâchoire de pince fixe (2) et la partie de maintien (23) est formée entre la liaison fixe (27) et l'extrémité, tournée vers la première mâchoire de serrage (6), de la partie de maintien (23), ladite liaison en butée entrant en action en cas de dépassement d'une force de serrage prédéfinie.
EP18800107.7A 2017-12-01 2018-11-07 Pince-étau Active EP3718179B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PL18800107T PL3718179T3 (pl) 2017-12-01 2018-11-07 Zaciskarka
SI201830616T SI3718179T1 (sl) 2017-12-01 2018-11-07 Stiskalne klešče

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102017128584.9A DE102017128584A1 (de) 2017-12-01 2017-12-01 Presszange
PCT/EP2018/080470 WO2019105704A1 (fr) 2017-12-01 2018-11-07 Pince-étau

Publications (2)

Publication Number Publication Date
EP3718179A1 true EP3718179A1 (fr) 2020-10-07
EP3718179B1 EP3718179B1 (fr) 2021-12-22

Family

ID=64267802

Family Applications (1)

Application Number Title Priority Date Filing Date
EP18800107.7A Active EP3718179B1 (fr) 2017-12-01 2018-11-07 Pince-étau

Country Status (14)

Country Link
US (1) US11462874B2 (fr)
EP (1) EP3718179B1 (fr)
JP (1) JP7253547B2 (fr)
KR (1) KR20200089730A (fr)
CN (1) CN111406349B (fr)
AU (1) AU2018374404B2 (fr)
CA (1) CA3081907A1 (fr)
DE (1) DE102017128584A1 (fr)
ES (1) ES2907032T3 (fr)
MX (1) MX2020005568A (fr)
PL (1) PL3718179T3 (fr)
SI (1) SI3718179T1 (fr)
TW (1) TWI786229B (fr)
WO (1) WO2019105704A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3904006B1 (fr) 2020-04-28 2023-06-07 WEZAG GmbH & Co. KG Matrice de pince à sertir et pince à sertir
JP2021171916A (ja) 2020-04-28 2021-11-01 ウェザッグ ゲーエムベーハー アンド コー．ケージー 圧着プライヤダイおよび圧着プライヤ
EP3984702B1 (fr) 2020-10-19 2023-02-01 WEZAG GmbH & Co. KG Pince à serrer et procédé de montage d'une unité de moitiés de matrice
USD1000237S1 (en) * 2020-12-17 2023-10-03 Weidmueller Interface Gmbh & Co. Kg Pliers
TWD215831S (zh) * 2021-04-26 2021-12-01 加捷實業有限公司 壓接手工具

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2109837A (en) 1936-01-02 1938-03-01 Grace P Davis Method of joining power transmitting cables
BE563464A (fr) 1956-12-28
NL133572C (fr) * 1964-03-11
US4283933A (en) 1977-11-18 1981-08-18 Pressmaster A.B. Gripping or pressing tool
JPH0294071U (fr) * 1988-12-29 1990-07-26
DE4026332A1 (de) 1990-08-21 1992-02-27 Wezag Gmbh Crimpzange zum verpressen von aderendhuelsen
US5117671A (en) 1991-04-25 1992-06-02 E. I. Du Pont De Nemours And Company Apparatus for forming features on an elongated metal wire
DE4117305C2 (de) 1991-05-27 1994-07-21 Weidmueller Interface Zange zum Ergreifen und/oder Verpressen von Bearbeitungsgegenständen
DE19507347C1 (de) 1995-03-02 1996-09-12 Rennsteig Werkzeuge Gmbh Preßzange für Aderendhülsen
US5842371A (en) * 1998-02-12 1998-12-01 Liaw; Gwo-Jiang Wire crimper having adjustment mechanism for adjusting pitch of the jaw mouth
DE19818482C1 (de) 1998-04-24 1999-11-11 Rennsteig Werkzeuge Gmbh Handpreßzange zum Verpressen von Aderendhülsen
DE10242345B3 (de) 2002-09-12 2004-02-26 Wezag Gmbh Werkzeugfabrik Zangenkopf zum Verpressen eines Werkstücks
FR2886874B1 (fr) 2005-06-10 2008-09-12 Dubuis Et Cie Sa M Jeu de deux matrices destinees a equiper une presse a reteindre et/ou a sertir
TWM521832U (zh) * 2015-12-11 2016-05-11 Hanlong Ind Co Ltd 壓接鉗
EP3179580A1 (fr) * 2015-12-11 2017-06-14 Hanlong Industrial Co., Ltd. Pince à sertir
CN105563416A (zh) * 2016-02-22 2016-05-11 青岛森林金属制品有限公司 杠杆式压力钳
TWM529974U (zh) * 2016-06-24 2016-10-01 Hanlong Ind Co Ltd 壓接鉗
SE541047C2 (en) * 2017-07-11 2019-03-19 Pressmaster Ab Hand tool with self-resilient handle

Also Published As

Publication number Publication date
RU2020121392A3 (fr) 2022-02-17
WO2019105704A1 (fr) 2019-06-06
AU2018374404B2 (en) 2022-08-25
JP7253547B2 (ja) 2023-04-06
ES2907032T3 (es) 2022-04-21
SI3718179T1 (sl) 2022-05-31
MX2020005568A (es) 2020-08-20
JP2021504881A (ja) 2021-02-15
CN111406349B (zh) 2022-01-11
CA3081907A1 (fr) 2019-06-06
US20200251869A1 (en) 2020-08-06
DE102017128584A1 (de) 2019-06-06
TWI786229B (zh) 2022-12-11
RU2020121392A (ru) 2022-01-04
PL3718179T3 (pl) 2022-04-11
CN111406349A (zh) 2020-07-10
TW201924866A (zh) 2019-07-01
KR20200089730A (ko) 2020-07-27
AU2018374404A1 (en) 2020-05-14
US11462874B2 (en) 2022-10-04
EP3718179B1 (fr) 2021-12-22

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