EP2054195B1 - Zange mit entgegen der kraft einer feder bewegbarem gelenkbolzen - Google Patents

Zange mit entgegen der kraft einer feder bewegbarem gelenkbolzen Download PDF

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Publication number
EP2054195B1
EP2054195B1 EP07821741.1A EP07821741A EP2054195B1 EP 2054195 B1 EP2054195 B1 EP 2054195B1 EP 07821741 A EP07821741 A EP 07821741A EP 2054195 B1 EP2054195 B1 EP 2054195B1
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EP
European Patent Office
Prior art keywords
pliers
hinge pin
pivot pin
longitudinal slot
spring
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
EP07821741.1A
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German (de)
English (en)
French (fr)
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EP2054195A1 (de
Inventor
Bernd Herrmann
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.)
Knipex Werk C Gustav Putsch KG
Original Assignee
Knipex Werk C Gustav Putsch KG
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Application filed by Knipex Werk C Gustav Putsch KG filed Critical Knipex Werk C Gustav Putsch KG
Priority to PL07821741T priority Critical patent/PL2054195T3/pl
Publication of EP2054195A1 publication Critical patent/EP2054195A1/de
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Publication of EP2054195B1 publication Critical patent/EP2054195B1/de
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    • 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
    • B25B7/06—Joints
    • B25B7/10—Joints with adjustable fulcrum

Definitions

  • the invention relates first to a pair of pliers with two intersecting in a hinge pin pliers legs, one of which is movable and the other is stationary and with a between the leg and the hinge pin, a tooth engagement of the hinge pin supportive acting spring, the pliers legs on one side of the Form hinge pin handle portions and on the other side of the hinge pin a forceps jaw is formed, further the hinge pin through which at the same time an axis of rotation of the movable forceps leg is adjustable in a longitudinal slot of the stationary forceps leg and wherein moreover by means of in the direction of a clamped by the forceps legs Level successive interlocking engagement between the hinge pin and the longitudinal slot of the movable pliers legs relative to the fixed pliers leg is selectively fixable.
  • the invention has the object to design the known pliers and further develop that results in an advantageous different handling characteristics.
  • the tensile load of the movable pliers leg transversely to the longitudinal extent of the longitudinal slot does not necessarily have to be directed at right angles to the longitudinal slot with respect to a plane extending transversely to the bolt axis. Rather, in this regard, the term "transverse" includes an angular range of a few degrees up to, for example, 10 °, 20 ° or more at the right angle. If you pull in this angle range on the movable leg, the hinge pin is released from the teeth.
  • the invention further relates to a pair of pliers according to the features of claim 2.
  • the hinge pin is initially movable out of the meshing engagement by a displacement transversely to the axis of rotation of the movable pliers limb out.
  • this is not the only possible movement to solve the meshing intervention.
  • the hinge pin - also - from the teeth by a shift in the direction of the axis of rotation of the movable Pliers leg is moved out.
  • EP 528 252 A1 is known. The user thus has the opportunity to use one or the other Verstellart side by side or depending on the application.
  • Movement of the hinge pin is accompanied by a rotation about the axis of rotation.
  • the displacement of the hinge pin in particular transversely to the axis of rotation is correspondingly superimposed by a rotation of the same, in the course of which rotational displacement of the hinge pin of the tooth engagement between the hinge pin and the longitudinal slot of the movable pliers limb is canceled.
  • the teeth of the hinge pin take hereafter a spaced position to the teeth of the longitudinal slot, after which an adjustment of the pliers legs to each other in particular in the sense of a Maulweitenveriererung can be achieved. This results in a further favorable adjustment for the user.
  • the movement and rotation of the hinge pin in the gear engagement or out of this preferably takes place solely by relative displacement of the pliers legs to each other.
  • the rotation of the hinge pin about the axis of rotation can be done only by train on the hinge pin carrying the movable pliers legs transversely to the longitudinal extent of the longitudinal slot, for example, under the support of a hinge pin portion on an edge of the longitudinal slot. Further, the rotation of the hinge pin can also be brought about by constructive measures in the cooperation area with the hinge pin. In this regard, it is proposed, for example, that the rotation is achieved by an off-center loading of the hinge pin with respect to the longitudinal slot. By this action, a positive control is achieved in the direction of rotation of the hinge pin.
  • the application of the hinge pin takes place off-center of the longitudinal slot, ie preferably laterally offset to a longitudinal slot centerline, which at the same time the rotational longitudinal axis receives the hinge pin, whereby the direction of rotation is predetermined with appropriate action.
  • the off-center admission is achieved according to a system of the hinge pin at one end portion of the longitudinal slot, so on at one of the longitudinal edge flanks of the longitudinal slot connecting slot bottom.
  • this end portion is brought by appropriate action on the hinge pin by rotation about the longitudinal axis of the gear engagement, preferably this, the rotation of the hinge pin inducing impingement is provided only in the region of a longitudinal slot end, more preferably in the region of minimum mouth opening.
  • a corresponding action on the hinge pin can also take place in the opposite end region of the longitudinal slot.
  • the loading of the hinge pin by the longitudinal slot end portion leads under appropriate force on the forceps arms to a forced control of the hinge pin to cancel the meshing engagement.
  • the hinge pin and / or the end portion of the longitudinal slot has a loading projection. If this is formed on the hinge pin, a one-piece design is preferred in this regard, this further in the manner of a with respect to the hinge pin axis approximately radially aligned control projection, which cooperates with the facing base edge of the longitudinal slot.
  • this base edge of the longitudinal slot may be provided with the Beauftschungsvorsprung which eccentrically with respect to the longitudinal center axis of the longitudinal slot arranged on the hinge pin acts such that it turns out of the meshing engagement.
  • both the base flank of the longitudinal slot and the hinge pin can have off-center projections arranged correspondingly for cooperation. is the actuating projection formed solely on the hinge pin, so the base edge of the longitudinal slot acts in the manner of a control edge.
  • the hinge pin can also be trapped in a form-fitting manner in a pliers limb for rotational drive, whereby the rotational drive only starts with the pliers mouth open partially.
  • the rotary drive is positively controlled via a pivoting of the pliers legs to each other about the pin axis.
  • the hinge pin is positively caught in the movable pliers leg.
  • the forced Dreheitschleppen the hinge pin to cancel the meshing engagement is further preferably only at the usual forceps jaw opening width for removing the forceps from the part to be gripped bordering forceps jaw opening.
  • the rotational displacement of the hinge pin to cancel the teeth is intentionally carried out by the forceps jaw is opened beyond the usual dimensions, such as a forceps jaw opening angle of more than 20 °, further including 25 ° or 30 °, for example.
  • This positive rotational driving the hinge pin is feasible in a preferred embodiment in each toothed position along the longitudinal slot, whereby the user in each forceps jaw position by means of simple rotary displacement of the forceps arms to each other a different forceps jaw width can be adjusted, which proves particularly in hard to reach areas of advantage, beyond in areas that comply with VDE regulations.
  • the user does not need to grasp the hinge pin for forceps jaw adjustment. Rather, the hands remain on the preferably suitably insulated pliers legs.
  • the form-fitting connection for rotational driving of the hinge pin via a pliers limb is achieved in a preferred embodiment in that the hinge pin has a radially extending driving projection, which in a radially inner Miterieausnaturalung of, which receives the hinge pin Hole having pliers leg engages.
  • the Mit Spotifyausnaturalung hereby offers the engaging driving projection a freewheel in the range of conventional forceps handling, so that in a conventional opening and closing of the forceps jaw and corresponding rotation of the movable forceps arm about the hinge pin axis no positive engagement of the hinge pin is effected.
  • the hinge pin is also designed to displace the same in the direction of the axis of rotation in order to cancel the meshing engagement, the user is offered one or the other type of adjustment.
  • the driving recess has at least one axial depth, which corresponds to the stroke when moving the hinge pin in the direction of the axis of rotation plus the axial thickness of the driving projection.
  • the driving projection of the hinge pin can adapted to the axial depth of the driving recess have a corresponding axial length.
  • the driving projection has only such an axial depth that it rests in the unloaded in the direction of the axis of rotation and by the user in the Mit Spotifyaus founded; however, leaves in the loaded position to cancel the gear engagement by displacement of the hinge pin in the direction of the axis of rotation, the driving recess.
  • the driving recess may represent an opening of the hinge pin receiving bore edge, which opening opens to the longitudinal slot of the fixed pliers limb out. Accordingly, the longitudinal slot can continue Also serve to accommodate the driving projection when depressed hinge pin.
  • the spring acts on the hinge pin only. It is supported on the one hand on the thigh and on the other hand on the hinge pin. A loading of other elements, such as the movable pliers leg is not given. On the other hand, of course, the movable pliers legs indirectly, by means of the fitting into the bores of the movable pliers limb corresponding portions of the hinge pin by the spring also applied.
  • the spring acts directly between the leg and the hinge pin.
  • a deflection or translation of the spring force, for example by means of a lever preferably does not take place.
  • the spring is supported on a portion of the leg forming the longitudinal slot. It is thus given a very close local relationship between the two bases of the spring, the hinge pin and the thigh.
  • the spring can be made comparatively small. A compact construction is possible.
  • the slot width of the longitudinal slot is preferably selected to be continuous so that the hinge pin is movable in the longitudinal slot transversely to its longitudinal extent, preferably in each toothed position corresponding to a mouth width.
  • the spring is received in the hinge pin with a direction of action transverse to its longitudinal axis. Consequently can also be achieved an actual parallelism of the direction of action of the spring to the plane defined by the forceps legs plane.
  • the spring acts on a spherical body and in turn the ball body cooperates with the leg.
  • the spherical body in a bore of the hinge pin, in which the spring is received be supported.
  • the bore can be caulked with the ball body therein, so that the ball is not lost even when disassembling the pliers.
  • this is not absolutely necessary, as well as other form fit, such as with a running training in the thigh, the holder of the ball body operatively, so apart from disassembly, can be secured.
  • the hinge pin is further preferably formed in a cross section, at least in the cooperating with the leg portion, so that when teeth engagement of the hinge pin partially rests partially and partially on the spring element on the opposite edge.
  • the spring is selectively brought out of action such that they bring to the disengagement of the teeth does not work.
  • The, acting on a longitudinal edge flank of the longitudinal slot ball acting spring is prevented in a preferred embodiment from springing, resulting in a blockage of about Spring and ball supporting hinge pin causes.
  • This blocking position can be deliberately brought about, this for example by appropriate structural means on the hinge pin or on or on the pliers legs.
  • a pin or the like can be brought into a blocking position on the hinge pin, for example, for engagement in the deflection space required for the Veriereungsaufhebung alternative space of the hinge pin.
  • a pin which is movable in the direction of the axis of rotation of the hinge pin is provided in the hinge pin in order to bring the spring out of operation.
  • This pin acts directly or indirectly on the spring in such a way that it can not deflect. Accordingly, it is not possible for the ball acted upon by the spring to dip, which is necessary for displacing the hinge pin transversely to its axis of rotation.
  • longitudinal slot is also preferred that only one longitudinal edge of the fixed toothed leg is formed with a toothing, with which then engagement teeth of the hinge pin cooperate in each case.
  • the other, non-toothed longitudinal edge is preferably formed smooth.
  • the toothing which is formed on the fixed pliers limb, forms overflowable flank angles in the closing direction of the pliers jaw.
  • an immediate delivery of the forceps jaw on the object is possible.
  • flank angle of a tooth formed on the stationary forceps limb, the opposing tooth, with which an engagement tooth of the hinge pin when moving the movable pliers limb comes into cooperation in the closing direction of the forceps jaw, with a longitudinal axis of the longitudinal slot includes a significantly smaller angle than the counter flank of the counter tooth, against which the corresponding engagement tooth of the hinge pin is supported upon actuation of the forceps.
  • this is also dependent on the tooth geometry of the hinge pin. It must be ensured that the overflow is ensured in the closing direction of the mouth, whereas a stable holding is achieved in the opening direction of the forceps muzzle.
  • Suitable angles of the tooth flank between 20 ° and 60 °, based on the smaller angle, and 80 ° to 110 °, relative to the larger angle.
  • the latter tooth flank (larger angle) can also be fundamentally negatively directed, that is to say have an undercut with respect to a vertical line on the said longitudinal axis.
  • the longitudinal slot can also have a curved longitudinal center line deviating from a straight longitudinal axis.
  • a respective tangent to the center line or a linear connection, not corresponding in the geometrical sense of a longitudinal axis, between end points of the longitudinal slot is then spoken of.
  • the hinge pin further preferably has two opposite, flattened sides, wherein only formed on one of the sides for Verniereingriff hinge pin teeth.
  • Pliers 1 in a first embodiment in the manner of a water pump pliers with two pliers legs 2, 3.
  • the pliers legs 2, 3 intersect in a hinge pin. 4
  • the forceps leg 2 is a fixed pliers leg.
  • the pliers leg 3 is movable relative to the pliers leg 2 to change the mouth width.
  • the pliers legs 2, 3 form on one side of the hinge pin 4 handle portions 5, 6 and on the other side of the hinge pin 4 jaws 7 and 8.
  • the crossing region of the legs 2 and 3 associated with the fixed leg 2 is provided with a longitudinal slot 9. This passes through the hinge pin. 4
  • the movable pliers leg 3 is fork-shaped in the crossing region, for flanking the longitudinal slot 9 having festoons section on both sides.
  • the hinge pin 4 is rotatably supported in the fork portions of the movable leg 3.
  • the hinge pin 4 has radially outward engagement teeth 10 which cooperate with the sliding determination of the movable pliers limb 3 along with an associated edge 12 in the longitudinal slot 9 arranged counter teeth 11 together.
  • the toothing engagement of the hinge pin 4 to the longitudinal slot toothing is supported by a force acting on the bolt 4 spring 13, here in the form of a cylinder compression spring. This is located in a radially directed to the bolt axis, radially outwardly open bore 17 and is supported with its radially beyond the bolt 4 projecting free end, on which the counter teeth 11 having flank 12 opposite flank 14 of the longitudinal slot 9 from.
  • the support is not directly on the flank 14, but rather indirectly with the interposition of a ball 15th
  • the movable pliers leg 3 is by means of its bores 19,19 ', which are penetrated by the hinge pin 4, rotatably mounted on the stationary pliers legs 2, wherein the pin axis forms the axis of rotation A.
  • a longitudinal slot 9 (see also in particular FIG. 4 ), in which the hinge pin 4 and thus at the same time the movable pliers leg 3 is adjustable.
  • the movable pliers leg 3 is gradually adjustable relative to the fixed pliers legs 2.
  • a flank of a counter tooth 11 to be overrun when moving in the mouth closing direction from the hinge pin encloses an angle ⁇ of approximately 40 ° with a longitudinal axis (here specifically a tangent to the longitudinal axis of the curved longitudinal slot 9), while the counter flank of the same counter tooth 11 coincides with the Longitudinal axis forms an angle ⁇ of about 95 °.
  • the engagement teeth 10 are biased in the valleys between the mating teeth 11 a.
  • the support 13 is acted upon, in addition to its support on the leg 2, only the hinge pin 4.
  • the support is, with the exception or by means of the ball 15, directly between the hinge pin 4 and the flank 14 of the leg 2.
  • the spring is supported Due to the ball 15 is a very low coefficient of friction, which is favorable in terms of adjustment, between the hinge pin 4, and the spring 13 and the fixed leg 2, achieved.
  • the illustrated pliers 1 is adjustable in two ways. Namely on the one hand, in principle, as in the aforementioned EP 528 252 A1 For example, also described by depressing the hinge pin 4 in the direction of the axis of rotation A. For this purpose acts on the hinge pin 4 in the direction of the axis of rotation A, opposite to its upper side loading side, designed as a torsion spring compression spring 16 (see also FIG. 3 ). Next, the hinge pin 4 for this purpose is formed on the underside with a continuous peripheral edge bead 18. The spring 16 can not slip off about the hinge pin 4 so. The spring 16 is in the embodiment a - front, in the interaction region with the hinge pin, slightly bent - leaf spring.
  • the hinge pin 4 can be adjusted by simply moving relative to each other of the pliers legs 2, 3, in said plane.
  • a width B of the longitudinal slot 9 see, for example FIG.
  • the hinge pin 4 can be released from the teeth in single tensile load of the movable pliers limb 3 transversely to the longitudinal extent of the longitudinal slot 9.
  • This tensile load can, as in FIG. 5 shown, take place substantially perpendicular to the longitudinal center line of the curved longitudinal slot 9, this from the in FIG. 5 in dash-dotted lines reproduced working position out.
  • the hinge pin 4 is acted upon substantially through the bore 19, which due to a line-like pivoting of the hinge pin 4 permitting support thereof on the opposing teeth 11 opposite edge 14 of the longitudinal slot 9 emigration of joint bolt-side mating teeth 10 result.
  • the hinge pin 4 is impressed by the tensile load acting on it, this further by overcoming the force of the in-bore 17 and the ball 15 acting on the edge 14 spring 13th
  • the tensile load of the movable pliers arm 3 can also be superimposed transversely to the longitudinal axis of the longitudinal slot 9 by a pivoting of the pliers arm 3 about the axis of rotation A of the hinge pin 4.
  • the pivoting of the movable pliers leg 3 alone does not cancel the teeth between hinge pin 4 and mating teeth 11th
  • the hinge pin 4 Due to the special shape of the hinge pin 4 in cross section, such as out FIG. 4 but also out FIG. 10 can be seen, the hinge pin 4 nonetheless, viewed in the longitudinal direction of the longitudinal slot 9, on the one hand a portion, mouth side of the spring 13, which corresponds approximately to the free width B of the longitudinal slot 9 and on the other hand, maulabgewandt the spring 13, a portion of a width G, the in any case about the extent of the meshing engagement is less than the width B (also the width G is based on the free width of the longitudinal slot 9).
  • this region of the cross section of the hinge pin 4 is also, seen in the longitudinal direction of the longitudinal slot 9, tapered. The narrow area is maulabgewandt.
  • the said width G results directly in the maulabgewandten edge region of the bore 17 (see, for FIG. 11 ), which receives the spring 13.
  • the taper which is in the above-mentioned cross section in the form of a practically straight surface, begins already on the mouth side of the bore 17th
  • the cross section of the hinge pin 4, based on the illustration in FIG. 4 is further substantially trapezoidal, wherein the trapezoidal transverse surfaces are rounded. These trapezoid transverse surfaces partially form support zones in the bores 19 and 19 'of the movable pliers limb (see also FIGS FIG. 3 ).
  • the ball 15 breaks in this regard, a trapezoid longitudinal side.
  • the bore 17 is otherwise a blind hole, so does not occur on the opposite sides to the outside.
  • the engagement teeth 10 are formed offset relative to a longitudinal axis or center line of the longitudinal slot 9 to maulabgewandten side in said cross-section 10 out. They are formed corresponding maulabgewandt a longitudinal axis of the bore 17.
  • the ball 15 also results in an advantageous behavior corresponding to a tilting moment with which the disengagement of the hinge pin 4 due to a tensile load in maulabgewandter direction of the movable pliers leg 3 relative to the fixed, and this held in mind, festivals 2 can be achieved.
  • the engagement teeth 10 extend over a height of the hinge pin 4, which corresponds to about 1.5 times the height of the base 21 or 20% to 35%, preferably about 25% to 30%, the height H of the hinge pin 4.
  • the tooth roots lie on a secant line with respect to the diameter of the base 21 extending line.
  • a button part 25 is arranged, which is held by way of a central pin in a depression of the hinge pin in the rest.
  • the knob 25, whose outer diameter is slightly smaller than the outer diameter of the base 21, protrudes over the surfaces 24 and the opposite surface like a roof.
  • FIGS. 12 to 17 show a pair of pliers 1 in a second embodiment in the manner of a key pliers.
  • a pair of key pliers for example, from the EP 0 421107 B1 known.
  • the content of this patent is hereby incorporated in full in the disclosure of the present invention, also for the purpose of including features of this patent in claims of the present invention.
  • the wrench 1 also has a movable pliers leg 3 and a fixed leg 2, which merges the latter material uniformly in a bearing plate 26.
  • a bearing plate 26 In this bearing plate 26 a formed according to the first embodiment longitudinal slot 9 is formed. This has counter teeth 11 on a longitudinal flank facing the forceps jaw 12, for engagement with engagement teeth 10 of a hinge pin 4 connecting the movable limb 3 with the fixed limb 2.
  • the configuration of the mating teeth 11, in particular the alignment of the tooth flanks, is chosen to be the same as that of the first exemplary embodiment.
  • the handle portion 5 of the fixed forceps leg 2 remote area of the bearing plate 26 is a material compared to the bearing plate 26 thickened jaw 7 is arranged.
  • This jaw 7 is opposite a movable jaw 8, which is formed substantially symmetrical to the jaw 7.
  • the movable jaw 8 forms in its lower region two resting on the surfaces of the bearing plate 26 and these in their upper region cross-arm 27, which on the bearing plate 26 facing inner sides Wear guide sections 28.
  • These engage in above the longitudinal slot 9, ie facing the forceps jaw in two opposite surfaces of the bearing plate 26 incorporated guide grooves 29, which guide grooves 29 are aligned rectilinearly parallel to a linear connecting line between the end points of the longitudinal slot 9. Accordingly, the movable forceps jaw 8 in the direction of the jaw 7 and from this away linearly displaceable on the bearing plate 26.
  • the movable forceps jaw 8 Facing the longitudinal slot 9, the movable forceps jaw 8 is provided on both sides of the bearing plate 26 with substantially U-shaped joint recesses 30. These are turned open to the longitudinal slot 9. These serve to receive pivot pin 31 and protrude radially outwardly from the hinge pin 4 bordering leg end portions 32 of the movable pliers limb 3, which leg end portions 32 end of the movable pliers limb 3 in the region of the bearing plate 26 on both sides fork portion 33 are formed.
  • the movable pliers limb 3 is rotatably displaceable about the axis of rotation A defined by the hinge pin 4.
  • the movable jaw 8 is linearly guided in the direction of the jaw 7 due to the displacement of the pivot pin 31 on a circular section track.
  • the hinge pin 4 of the pliers 1 according to the second embodiment is the same as that of the previously described embodiment. Accordingly, reference is made to the first embodiment with respect to the configuration of the toothing and the configuration of the hinge pin as such.
  • the hinge pin 4 can be adjusted by merely moving the pliers legs 2 and 3 relative to each other in the plane described here. By merely tensile load of the movable pliers limb, the hinge pin 4 is moved out of the meshing engagement with the toothing of the longitudinal slot 9. Thus, even without manipulation on the hinge pin 4 itself an adjustment of the jaw width, d. H. the spacing of the jaws 7 and 8 are performed to each other.
  • FIGS. 18 to 22 show the pliers 1 in a further embodiment in the manner of a water pump pliers, which is constructed substantially the same as that with reference to Fig. 1 ff described first embodiment.
  • pliers legs 2 and 3 are also provided here, which intersect in the hinge pin 4.
  • the pliers leg 2 is a fixed pliers leg, to which the pliers leg 3 is movable relative to the change of the mouth width.
  • the movable pliers limb in the crossing region is fork-shaped, for flanking the longitudinal slot 9 having festoons section on both sides.
  • the hinge pin 4 is rotatably supported in the fork portions of the movable leg 3.
  • the radially outwardly directed engagement teeth 10 of the hinge pin 4 cooperate for sliding determination of the movable pliers limb 3 along with an associated flank 12 in the longitudinal slot 9 arranged counter teeth 11 together.
  • the toothing engagement of the hinge pin 11 is supported to the longitudinal slot toothing by acting on the bolt 4 spring 13, which spring 13 indirectly with the interposition of a ball 15 at the the longitudinal slot toothing opposite flank 14 of the longitudinal slot 9 is supported.
  • the hinge pin is in the in the FIGS. 18 to 22 illustrated embodiment provided in a cross section in the plane defined by the longitudinal slot 9 plane or plane share with a Beauftschungsvorsprung 34.
  • the hinge pin 4 is designed substantially trapezoidal in this plane, with two aligned approximately parallel to each other trapezoidal longitudinal sides 24 and 35.
  • the central axis of the spring 13 and the ball 15 receiving bore 17 is i. W. perpendicular to the surfaces of the longitudinal sides 24 and 35.
  • the ball 15 emerges from the surface 24 according to the first embodiment.
  • the flat trapezoidal surface 35 extends in cross-section approximately from the central axis of the bore 17, starting outward under attack of the preferably circular base 21 of the hinge pin 4, this with a supernatant, which corresponds approximately to the diameter of the ball 15.
  • the trapezoid longitudinal side 35 passes over into a trapezoidal narrow side 22 enclosing an approximately 60 ° angle to the longitudinal trapezoidal side 35, which in turn runs into the opposite longitudinal side 24 oriented parallel to the trapezoid longitudinal side 35.
  • the transition region from the long side 35 to the narrow side 22 is rounded, to form the Beauftschungsvorsprunges 34. This projects accordingly in a projection on the bore 19 and 19 'of the movable pliers limb 3 via the bore edge 3 in the free space of the longitudinal slot 9 a.
  • the trapezoid longitudinal side 35 is facing away from the Beauftschungsvorsprung 34 in the engagement teeth, which engagement teeth 10 are positioned on a plane perpendicular to the pivot plane of the hinge pin 4 level, which includes an obtuse angle to the longitudinal side 35 in cross section, so on about an angle of 165 ° ,
  • the loading projection 34 is directed in the direction of the pliers head associated longitudinal slot base edge 36.
  • This base flank 36 extends transversely to the longitudinal flanks 12 and 14 of the longitudinal slot 9.
  • transition regions in particular the transition region from the base flank 36 to the flank 12 having the mating teeth 11, are rounded strongly to form a control curve 37.
  • the arrangement is further selected such that in a toothed position as shown in FIG Fig. 18 between the trapezoidal longitudinal surface 24 and the associated edge 14 of the longitudinal slot 9 and between the trapezoidal longitudinal side 35 and the facing edge 12 of the longitudinal slot 9 each have a gusset-like clearance 38, 39 sets, with a respective opening angle of about 15 °.
  • the biasing projection 34 is off-center, in particular in this basic position with respect to a the axis of rotation A of the hinge pin 4 crossing longitudinal central axis of the longitudinal slot 9, the edge 12 arranged facing.
  • the hinge pin 4 viewed in the longitudinal direction of the longitudinal slot 9, on both sides of the spring 13 and the ball 15 receiving bore 17 formed with a width G, which is at least about the extent of the meshing less than the width B of the longitudinal slot 9. Specifically is further the width G 'of the hinge pin 4 in the region of the longitudinal slot 9 mouth side of the bore 17th reduced by the transversely to the longitudinal slot extension considered height dimension of the engagement teeth 10 relative to the width dimension G.
  • the hinge pin 4 can be released from the teeth in single tensile load of the movable pliers arm 3 in the direction of the longitudinal extension of the longitudinal slot 9, this starting from a minimum nose position according to Fig. 18 in which the engagement teeth 10 of the hinge pin 4 engage in the last counter teeth 11 of the longitudinal slot 9 considered with reference to the base flank 36. As already described in the previous embodiments, this position can also be achieved from a different mouth position by ratchet-like displacement.
  • the proposed solution according to the embodiment in the FIGS. 18 to 22 can be used both in connection with a displaceable along the axis of rotation A hinge pin 4 (over which displacement an alternative tooth suspension can be achieved) and with a hinge pin 4, which is not displaced in this form are used. In the latter case, a corresponding cancellation of the toothing can be achieved only by turning the hinge pin with the interaction of the loading projection 34 and the associated flank of the longitudinal slot 9.
  • FIGS. 23 to 25 An alternative embodiment of this embodiment show the FIGS. 23 to 25 , where in the Figures 23 and 25 a not displaceable in the direction of the axis of rotation A hinge pin 4 is provided.
  • the hinge pin 4 is provided in a cross-section in a longitudinal slot plane starting from a trapezoid narrow side 22 receiving the base contour with a pin-like loading projection 34 extending in the direction of the base flank 36 of the longitudinal slot 9. Also, this extends eccentrically with respect to a longitudinal central axis of the longitudinal slot 9, here facing the counter teeth 11 opposite edge 14th
  • the transition region from flank 14 to the base flank 36 is provided with a recess 40 forming a control curve 37.
  • a hinge pin 4 that can be displaced along the axis of rotation A as an alternative to the toothed suspension.
  • a hinge pin 4 is in Fig. 24 shown. In a sliding displacement of the hinge pin 4 to cancel the gear engagement of the Beauftschungsvorsprung 34 dives into the longitudinal slot 9.
  • FIGS. 26 to 32 show a further embodiment, wherein the illustration in Fig. 26 refers to a hinge pin 4, which is slidably displaceable along the axis of rotation A for alternative teeth suspension according to the first embodiment.
  • the other representations FIGS. 27 to 32 ) show an embodiment with a hinge pin 4 which is not schiebverlagerbar in the manner described above.
  • the hinge pin 4 is provided in the region of a cooperating with the leg bore 19 collar or portion of a trapezoidal narrow side 22 with a radially projecting driving projection 41. This engages in a projection on a plane oriented transversely to the axis of rotation A, the edge of the bore 19 and immersed in a radially inwardly into the bore edge incoming, radially outwardly of the bore 19 shaped driving recess 42 a.
  • This driving recess 42 has in one embodiment of the hinge pin 4 according to the representations in the FIGS. 27 to 32 an axial depth corresponding to the axial height of the driving projection 41. If, however, a sliding displaceable hinge pin 4 as shown in FIG Fig.
  • the driving recess 42 viewed in the axial direction is designed as a breakthrough; opens in accordance with axially inward in a preferred arrangement of the driving recess 42 in a projection within the longitudinal slot 9 in the direction of the longitudinal slot 9, whereby the driving projection 41 for selectively sliding displacement of the hinge pin 4 along the axis of rotation A to cancel the teeth an escape space is given.
  • the driving recess 42 in this embodiment has at least one axial depth, which corresponds to the stroke when moving the hinge pin 4 in the direction of the axis of rotation A plus the axial thickness of the driving projection 41.
  • the entrainment recess 42 has a length considered in the circumferential direction of the associated bore 19, which essentially corresponds to the usual pivoting path of the movable pliers limb 3 between a mouth closing position and a mouth opening position.
  • the driving recess 42 extends with respect to the axis of rotation A through an angle of about 25 °.
  • the hinge pin 4 is rotatably held in the movable leg 3.
  • the Mit Spotifyaus Principleung 42 in which the driving projection 41 rests, follows the pivotal movement of the movable pliers limb 3, wherein the further Mit Cyprusvorsprung 41 in a forceps jaw closing position, such as in Fig. 28 shown, abuts one end of the driving recess 42.
  • the hinge pin 4 remains in disengaged position relative to the toothing of the longitudinal slot 9, according to which a longitudinal displacement of the movable pliers limb 3 along the longitudinal slot 9 into the desired position can take place.
  • the cancellation of the meshing engagement is in this embodiment from each detent position along the longitudinal slot 9 can be brought out.
  • FIGS. 33 to 44 show three different embodiments to allow a targeted blocking of Ausrastschreibkeit the hinge pin 4 in the transverse direction, for example, effected by train on the movable pliers legs 3 or by selective rotation control of the hinge pin 4 via a positive engagement according to the embodiment in the representations of FIGS. 26 to 32 or via a positive control according to the embodiments in the FIGS. 18 to 25 , wherein, despite blocking the lifting of the locking by targeted, ie volitional displacement of the hinge pin 4 along the axis of rotation A is quite possible.
  • the knob part 25 of the hinge pin 4 relative to the hinge pin 4 is provided rotatable about the axis of rotation A at least over a partial area.
  • the button part 25 is further formed plate-like, projects beyond the segment-like in a projection on a direction transverse to the axis of rotation A plane, the trapezoidal surface 24 from which the ball 15 emerges.
  • the button part 25 facing the surface 24 is provided with a parallel to the axis of rotation A extending pin 43. This extends in the direction of the axis of rotation A viewed over the entire length of the surface 24 to the base 21.
  • the pin 43 is rotatably held on the button part 25.
  • the pin 43 is provided at the axial height of the engagement teeth 10 with a thickening 44 which dips in accordance with twisted button part 25 in the setting in the toothed position between the trapezoidal surface 24 and the associated longitudinal slot edge 14 gland-like free space 38 (see. Fig. 33 ) and thus prevents the possibility of pivoting of the hinge pin 4 about its axis of rotation A. Accordingly, the hinge pin 4 does not occur by turning about its axis of rotation A from the teeth.
  • the trapezoidal surface 24 is supported in this situation on the thickened portion 44 of the pin 43 on the longitudinal slot edge 14 from. There remains correspondingly no clearance for the exit of the engagement teeth 10.
  • the end of the trapezoidal surface 24 in the hinge pin 4 is provided with a pocket-like recess 45 which recedes relative to the surface 24.
  • the pin 43 in particular its thickened portion 44 for the rotational release of the hinge pin 4, this via rotary actuation of the knob part 25.
  • the pin 43 is in particular the thickening 44 not over the plane of the surface 24 stepping out in the recess 45 a.
  • the gore-like space 38 is exposed, so that a pivotal displacement of the hinge pin 4 about its axis of rotation A to cancel the gearing engagement via pliers leg operation can be carried out according to the embodiments described above.
  • FIGS. 37 to 39 An alternative embodiment show the FIGS. 37 to 39 ,
  • an initially plate-shaped, parallel to the surface 24 extending locking element 47 is provided. This is initially in a recess 48 of the surface 24, wherein further the transverse to the axis of rotation A considered depth of the recess 48 corresponds to the considered in the same direction thickness of the locking element 47 corresponds.
  • the outwardly directed surface of the locking element 47 is aligned with the remaining surface 24 of the hinge pin. 4
  • the locking element 47 is pivotable about an axis oriented perpendicular to the axis of rotation A axis.
  • the pivot axis is provided with the reference numeral 49.
  • the pivot axis 49 is provided in a corner region.
  • Another, over the head portion 25 in each pivot position protruding corner area forms a handling portion 50 from.
  • the third corner region carries a locking shoulder 41 aligned perpendicular to the axis of rotation A.
  • the pivot axis 49 is arranged with respect to the spring 13 and the ball 15 receiving bore 17 on the mouth side of the surface 24.
  • the locking shoulder 51 is positioned with respect to this bore 17 opposite the pivot axis 49.
  • the blocking element 47 is further formed, for example in the form of a bent sheet metal part.
  • the user can, for example, thumb actuated the locking element 47 from a in Fig. 37 shown hinge pin release position in a locking position according to Fig. 39 pivot.
  • the locking shoulder 51 engages in between the surface 24 and the facing longitudinal slot edge 14 adjusting, gland-like free space 38, whereby the hinge pin 4 is locked against rotation about the axis of rotation A. Accordingly, no suspension of the meshing engagement can be brought about via a tensile or rotary load on the movable leg 3. A repeal of this tooth engagement by linear displacement of the hinge pin 4 along the axis of rotation A is still possible in this blocking element position.
  • the locking shoulder 51 emerges in the course of the sliding displacement of the hinge pin 4 from the allocation area to the longitudinal slot 9.
  • FIGS. 40 to 44 an embodiment in which a blocking of Ausrastschreibkeit in the transverse direction is achieved by blocking the in-bore 17 ball 15.
  • This can therefore not dip by transverse loading, for example by appropriate train on the movable pliers leg 3 or conditionally caused by a forced rotary displacement load of the hinge pin 4. Accordingly, no clearance is given to move the engagement teeth 10 out of the counter teeth.
  • the ball 15 is first outwardly pointing dome-shaped with an inwardly dipping into the bore 17 cylinder portion 52. This is backward loaded by the compression spring thirteenth
  • the cylinder portion 52 is provided with a circumferential groove 53.
  • a locking pin 54 In disengagement of the ball 15 of the groove 53 is assigned a locking pin 54. This extends perpendicular to the bore 17 and thus parallel to the axis of rotation A within a correspondingly aligned bore 55 of the hinge pin 4. This bore 55 opens one end in the spring 13 and the ball 15 receiving bore 17 and the other end in the region of a radial extension 56 below the Bore 55 substantially overlapping collar surface of the button portion 25.
  • the button portion 25 itself is further provided with a provided in overlap to the bore 55 opening 57 for the passage of a locking pin end portion 58.
  • the locking pin 54 has further assigned to the radial extension 56 of the bore 55 to a radial collar 59. This is loaded on the underside by a supported on the Radialerweit ceremoniessboden compression spring 60 in the form of a cylindrical spring in the direction of the button portion 25, wherein further the radial collar 59 forms a stop for support on the facing underside of the button portion 25.
  • an actuatable slide 62 is provided in the region of the actuating surface of the button part 25, which is linearly displaceable transversely to the axis of rotation A via a handle 63 in the direction of the locking pin end portion 58.
  • the slider 62 faces the end portion 58 has a circular portion-shaped recess 64 which engages the locking pin 54 in a radially tapered portion of the locking pin end portion 58 formed by a circumferential groove 65, and so an automatic return control of the locking pin 54 in the ball release position prevented.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Gripping Jigs, Holding Jigs, And Positioning Jigs (AREA)
  • Surgical Instruments (AREA)
  • Manipulator (AREA)
EP07821741.1A 2006-10-24 2007-10-24 Zange mit entgegen der kraft einer feder bewegbarem gelenkbolzen Active EP2054195B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL07821741T PL2054195T3 (pl) 2006-10-24 2007-10-24 Szczypce z dwoma krzyżującymi się w trzpieniu przegubowym ramionami

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102006050645 2006-10-24
DE102007049032.3A DE102007049032B4 (de) 2006-10-24 2007-10-11 Zange
PCT/EP2007/061378 WO2008049850A1 (de) 2006-10-24 2007-10-24 Zange mit entgegen der kraft einer feder bewegbarem gelenkbolzen

Publications (2)

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EP2054195A1 EP2054195A1 (de) 2009-05-06
EP2054195B1 true EP2054195B1 (de) 2018-09-05

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US (1) US8695464B2 (es)
EP (1) EP2054195B1 (es)
CN (1) CN101568408B (es)
DE (1) DE102007049032B4 (es)
ES (1) ES2698825T3 (es)
PL (1) PL2054195T3 (es)
RU (1) RU2450909C2 (es)
WO (1) WO2008049850A1 (es)

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Also Published As

Publication number Publication date
EP2054195A1 (de) 2009-05-06
DE102007049032A1 (de) 2008-04-30
US8695464B2 (en) 2014-04-15
WO2008049850A1 (de) 2008-05-02
CN101568408B (zh) 2013-02-27
CN101568408A (zh) 2009-10-28
RU2450909C2 (ru) 2012-05-20
RU2009119435A (ru) 2010-11-27
US20100064861A1 (en) 2010-03-18
ES2698825T3 (es) 2019-02-06
PL2054195T3 (pl) 2019-02-28
DE102007049032B4 (de) 2021-03-18

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