EP3208044A1 - Pince comprenant un systeme de levier a genouillere - Google Patents

Pince comprenant un systeme de levier a genouillere Download PDF

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Publication number
EP3208044A1
EP3208044A1 EP16156231.9A EP16156231A EP3208044A1 EP 3208044 A1 EP3208044 A1 EP 3208044A1 EP 16156231 A EP16156231 A EP 16156231A EP 3208044 A1 EP3208044 A1 EP 3208044A1
Authority
EP
European Patent Office
Prior art keywords
pliers
toggle lever
toggle
lever
contact
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.)
Withdrawn
Application number
EP16156231.9A
Other languages
German (de)
English (en)
Inventor
Kurt Battenfeld
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 EP16156231.9A priority Critical patent/EP3208044A1/fr
Priority to TW106101385A priority patent/TW201729949A/zh
Priority to US15/434,625 priority patent/US20170239788A1/en
Priority to CN201710085787.XA priority patent/CN107088846A/zh
Priority to JP2017028288A priority patent/JP2017144550A/ja
Publication of EP3208044A1 publication Critical patent/EP3208044A1/fr
Withdrawn legal-status Critical Current

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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
    • 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
    • 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
    • B25B27/02—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same
    • B25B27/10—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same inserting fittings into hoses
    • 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
    • B25B7/02—Jaws
    • 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
    • B25B7/123—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 with self-locking toggle levers
    • 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
    • B25B7/126—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 with fluid drive
    • 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
    • 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
    • B25B7/22—Pliers provided with auxiliary tool elements, e.g. cutting edges, nail extractors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26B—HAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR
    • B26B17/00—Hand cutting tools, i.e. with the cutting action actuated by muscle power with two jaws which come into abutting contact
    • B26B17/02—Hand cutting tools, i.e. with the cutting action actuated by muscle power with two jaws which come into abutting contact with jaws operated indirectly by the handles, e.g. through cams or toggle levers
    • 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
    • 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
    • H01R43/0421—Hand tools for crimping combined with other functions, e.g. cutting

Definitions

  • the present invention relates to a pair of pliers of any type in which a toggle lever drive is used.
  • the pliers may be crimping pliers, tube crimping pliers, fitting crimping pliers or cutting pliers.
  • the pliers can be designed as a manually operated hand tool with hand levers. It is also possible that the pliers is actuated by a particular electric, hydraulic or pneumatic drive, wherein the pliers for the use of an electric drive can also be equipped with an accumulator for power supply.
  • a toggle lever insert is used, which are interposed between drive elements (especially hand lever) and jaws.
  • drive elements especially hand lever
  • the drive movement of the drive elements is translated to the movement of the jaws.
  • the translation of the toggle lever drive can be dimensioned so that with normal hand forces an operation of hand levers over a larger swing angle causes a smaller movement of the jaws with increased translation due to the forces on the forceps jaws to act on a arranged between the jaws workpiece.
  • a modified transmission of the toggle lever drive can result over the working stroke, resulting in a maximum gear ratio as the knee angle approaches the extended position.
  • the present invention has for its object to provide a pair of pliers, in which the two jaws are actuated via a new toggle lever drive.
  • a toggle lever drive with two toggle levers is formed, each of which is designed as a train or pressure-loaded toggle bars or toggle levers (which may also be acted upon in addition to a bending moment).
  • the invention proposes that a first toggle lever of the toggle lever drive with two as a separate Components trained toggle components is formed. During the power stroke of the pliers, these two toggle components change their relative position, with the toggle assemblies moving relative to one another along contours of contact.
  • This "multi-piece" training of the first toggle lever opens up new opportunities on the one hand for the structural design of the toggle lever drive and thus the pliers and on the other hand for the design of the drive mechanism and its space conditions.
  • a first toggle lever and a second toggle lever are not physically present, singular, rod-shaped or tab-like components. Rather, they are fictitious toggle levers formed by one or more components.
  • a toggle lever components integrally also forms the second toggle lever.
  • the toggle lever components of the first toggle lever and the second toggle lever are formed by a one-piece rigid component and there is only an imaginary knee joint.
  • This imaginary knee joint corresponds to the center of curvature of the contact contour of the toggle lever component of the first toggle lever at the contact surface of the two contact contours.
  • a production of the contact contours of the toggle lever components can be done in any way.
  • at least one contact contour of the toggle lever components is produced by stamping, wherein a punch contour corresponding to the contact contour, in particular a punching tool, can be used. While quite a post-processing can still be done after punching, even the direct production of the contact contour by punching is possible (which under certain circumstances after punching a vibratory grinding takes place in order to eliminate any existing after punching burrs without a change in the Contact contour is made).
  • the two contact contours can be produced with a single punching tool, but then punching the two contact contours for the two interacts with one another passing Toggle components for a toggle lever component from the front and for the other toggle lever component from the back. It is even possible that in such an orientation of the two toggle lever components and a juxtaposition of the toggle lever components, the punching of the contact contours is carried out with a single punching operation with the same punch.
  • the toggle device may be plate-like with a thickness in the range of 1 mm to 4 mm, preferably 1.5 mm to 3 mm or 1.8 mm to 2.5 mm.
  • any contact contours are possible, wherein on the design of the contact contours further influence on the kinematics of the toggle lever drive can be taken.
  • the shape of the contact contour during the passage of the power stroke the effective length of the first toggle lever, which is formed with the at least two toggle lever components are changed.
  • the contact contours are formed in a circular arc.
  • Such circular-arc-shaped contact contours result in good guidance of the toggle lever components abutting one another in the region of the contact contours during the working stroke.
  • a circular transmission of the force between the contact contours and thus the toggle lever components can be ensured via circular-arc-shaped contact contours.
  • the toggle lever drive can be integrated in any manner in the pliers, which then may result in different articulations of the jaws to each other or to components of the pliers.
  • the two jaws may be hinged together in the region of a pliers head.
  • a forceps body integrally or rigidly forms a fixed forceps jaw and a fixed hand lever.
  • the movable jaw is hinged to the tong body in the region of the fixed hand lever.
  • the movable jaw is articulated in the end remote from the pliers head end of the fixed hand lever.
  • This embodiment of the invention is based on the finding that during a pivoting movement of the two jaws relative to each other a movement of a die, a blade or other tool is not a pure translational closing movement, but rather the closing movement and a superimposed pivoting of the dies, cutting or tools for Episode has. This pivoting movement may be detrimental to the workpiece to be machined.
  • pivoting movement leads to a deteriorated rolling behavior of crimping claws of a connector to be crimped or to a torque applied to the connector.
  • a reduction of this undesired pivotal movement can be achieved by shifting the articulation location of the two forceps jaws away from each other from the dies, cutting or working tools into the (end) region of the hand lever.
  • a toggle lever component is a pressure body.
  • the pressure body has two contact contours. About the two contact contours of the pressure body is in each case interacting with a contact contour of the other two toggle lever components.
  • the pressure body allows a relative movement between the other two toggle lever components, despite this relative movement of the pressure body is used to transmit a compressive force between the other toggle lever components.
  • one of the pressure body actuated toggle component is rotatably mounted or even fixed to a movable jaw or is formed by this.
  • the pliers according to the invention can have at least one arbitrary opening spring, which automatically returns the pliers to an open position after the generation of the closing movement.
  • at least one opening spring can act over the entire working stroke.
  • the approach to the closed position with a reaching of the extended position of the toggle lever drive is problematic.
  • the at least one opening spring can be integrated in any way in the drive mechanism of the pliers.
  • the pressure body can be acted upon by an opening spring, which makes use of this configuration that the pressure body during the power stroke its angular position relative to the fixed jaw, the fixed hand lever or the pliers body, the this trains, changes.
  • a spring base of the opening spring may thus be supported on the fixed jaw, the fixed hand lever or the tong body, while the other spring base of the opening spring may be supported on the pressure body.
  • the opening spring For the structural design of the opening spring there are many possibilities. For example, a torsion spring, a compression or tension spring, a leg spring u. ⁇ . Be used.
  • the opening spring is formed as a leaf or spiral spring, which is subjected to bending.
  • the leaf or spiral spring can extend approximately parallel to a hand lever.
  • approximately parallel means any orientation and arrangement of the leaf spring or bending spring for which the leaf or bending spring is integrated into the hand lever or does not substantially protrude from it, regardless of the position in the working stroke.
  • leaf spring or bending spring is fastened in the end region of the hand lever facing away from the forceps head, so that under some circumstances the leaf spring or bending spring has a considerable length and is for example greater than half the longitudinal extension of the forceps.
  • a toggle lever component is rigidly connected to the movable hand lever (directly or indirectly).
  • a toggle lever component is rigidly or rotatably connected to the fixed hand lever (directly or indirectly).
  • the invention also proposes that the movable hand lever is formed by a tong body.
  • This pliers body can be used multifunctional by this also integrally or rigidly) the second toggle lever, a toothing of a Zwangsgesperres, a stop for specifying a closed position and / or a contact contour is formed.
  • the toggle lever drive can be arranged at any point of the pliers.
  • the toggle lever drive between the hand levers and the dies is arranged.
  • the dies, the toggle-lever drive and the hand levers follow one another in this order in the direction of the longitudinal axis or even directly adjoin one another.
  • the toggle lever drive does not extend into a region laterally of the dies, as in particular according to the document US 6,161,416 B is the case. According to the invention, thus, the lateral dimension of the pliers head can be reduced, so that the pliers can be used even in cramped conditions.
  • the angle of the Pliers jaws during the working stroke by less than 5 °, preferably less than 4 ° or even less than 3.5 °, whereby the exercise of an undesirable torque on the workpiece can be at least reduced.
  • the length of the pliers can be less than 250 mm.
  • the height of the pliers may be less than 60 mm despite the integration of the constraining mechanism and / or the thickness of the pliers may be less than 15 mm.
  • all the aforementioned geometric conditions are met on a pair of pliers, whereby deviations of plus / minus 20% or plus / minus 10% are possible.
  • At least one opening spring is formed integrally by a toggle lever component, wherein this opening spring is preferably formed by an elastic spring arm, extension or an elastic web of the toggle lever component.
  • this opening spring is preferably formed by an elastic spring arm, extension or an elastic web of the toggle lever component.
  • the pliers are a pipe crimping pliers, a crimping tool or a cutting pliers.
  • Fig. 1 and 2 show a pair of pliers 1 in training as a crimping tool 2, in which on jaws 3, 4 dies 7, 8 are held for pressing a workpiece such as a plug in a Gesenkage 7.
  • the pliers 1 is formed in plate construction, wherein plates are connected to each other via fixing bolts or pivot pins.
  • the pliers 1 has a fixed hand lever 8 rigidly connected to a fixed jaw 3 and a movable hand lever 9 drivingly connected to a movable jaw 4.
  • the hand levers 8, 9 have handles 10, 11 made of plastic.
  • the forceps 1 has a pliers head 12. In the region of the pliers head 12, the dies 5, 6 and a drive mechanism including a toggle lever drive 13 are arranged.
  • the pliers 1 further comprises an actuating part 14, in the region of which the hand lever 8, 9 are arranged.
  • the pliers head 12 and the actuating part 14 close in the direction of a longitudinal axis of the pliers 1 to each other.
  • the fixed jaw 3 and the fixed hand lever 8 are formed by a tong body 15 having two cover plates 16a, 16b extending in parallel to form a gap with drive mechanism and toggle mechanism 13 disposed in the gap. Accordingly, the jaw 4 is provided with two jaw plates 17a, 17b formed, in the space between the die 6 extends.
  • Fig. 3 shows the pliers according to Fig. 1 in a closed position in a plan view, in which case the cover plate 16b and the pliers jaw plate 17b and the handles 10, 11 are dismantled.
  • cover plates 16 is attached to the die 7 via a bolt extending through fastening holes 18 bolt.
  • a pivot pin extending through bearing bores 19 forms a pivot bearing 20 in which a pliers body 21 (cf. Fig. 8 ) is pivotally supported on the tong body 15.
  • Another by a bearing bore 22 extending pivot pin forms a pivot bearing 23, in the region of a pliers jaw plate 24, which in Fig. 9 is shown, is pivotally supported on the tong body 15.
  • the pivot bearing 23 is in this case arranged in the end region of the hand lever 8 facing away from the forceps head 12, preferably in the range of 2 cm to 7 cm away from the end region of this hand lever 8.
  • About mounting holes 25, 26, 27 and thereby extending fastening bolts are on the forceps jaw plate 24, the jaw plates 17 a, 17 b, in Fig. 10 are shown, and a toggle device 28, which in Fig. 11 is shown attached.
  • the forceps jaw carrier plate 24, the jaw plates 17 and the toggle lever component 28 together form a tong body 29.
  • the relative movement of the forceps body 15, 21, 29 can be seen, while further moving components of the forceps 1 inside the Pliers 1, namely in the space between the cover plates 16a, 16b, are arranged.
  • the toggle element 28 serves on the one hand to stiffen the pliers body 29 in the large-acting forces. Furthermore, the toggle lever component 28 forms a contact contour 30, which is circular segment-shaped here and is arranged concentrically to the fastening bore 27.
  • the pivotable about the pivot bearing 20 tong body 21 forms on the one hand a hand lever plate 31.
  • the pliers body 29 is cranked with an offset relative to the hand lever plate 31 extension 32, the longitudinal axis to the longitudinal axis of the hand lever plate 31 forms an obtuse angle.
  • the pivot bearing 20 is arranged in the region of the crank of the tong body 29.
  • the contact contour 33 is also formed corresponding to a circular segment, wherein the radius of this contact contour 33 is preferably greater than the radius of the contact contour 30.
  • the center of curvature 34 of the contact contour 33 is not arranged in the region of the pivot axis of the pivot bearing 20, but rather arranged between the pivot axis of the pivot bearing 20 and the contact contour 33.
  • toggle lever component 35 Between the extension 32 of the tong body 21 and the toggle lever component 28 acts a toggle lever component 35, which is designed as a pressure body 36 (see also Fig. 13 ).
  • This toggle element 35 forms contact contours 37, 38 on opposite sides.
  • the contact contour 37 of the toggle lever component 35 corresponds to the contact contour 30 of the toggle lever component 28.
  • the contact contour 38 of the toggle lever component 35 corresponds to the contour 33 of the extension 32 of the tong body 21.
  • the respectively associated contact contours 37, 30 and 38, 33 are inverted to each other, so that one of said contact contours 30, 33 convex and the associated other contact contour 37, 38 is concave.
  • the pliers body 21 forms a toothing 39 in a peripheral region around the pivot bearing 20.
  • a spring-loaded locking and locking element 40 of a forced locking 41 engages a spring-loaded locking and locking element 40 of a forced locking 41.
  • Zwangsgesperres 41 ensures in a conventional manner that during the power stroke an intermediate position once reached is secured and an opening of the forceps 1 is only possible when the power stroke is completed.
  • the cover plates 16 Adjacent to the bearing bore 22, the cover plates 16 have a mounting hole 42.
  • An opening spring 43 here a leaf or bending spring 44 (see. Fig. 12 ), is fixed on the cover plates 16 via a fastening bolt extending through the fastening bore 42 and the bolts extending through the bearing bore 22.
  • the blade or bending spring 44 extends parallel to the hand lever 8 into the region of the pliers head 12.
  • the attachment to the cover plates 16 opposite end portion of the blade or bending spring 44 interacts with an extension 45 of the toggle lever component 35 such that a pivoting of the toggle lever component 35, which will be described in more detail below, with the passage of the power stroke of the open position according to Fig. 4 leads in the closing direction to a loading of the blade or bending spring 44 counterclockwise.
  • the leaf or spiral spring can cause a reverse opening movement of the toggle lever member 35 to restore the open position.
  • the cover plates 16 and the pliers jaw plates 17 have, for example, a thickness of 3 mm.
  • the distance of the cover plates 16 and the pliers jaw plates 17 is 6 mm.
  • the toggle member 28, the toggle member 35, the leaf or bending spring 44 and the pliers body 21 are arranged in the same plane of the pliers and have the same thickness, namely a thickness of 2 mm. On both sides of this plane extend jaw backing plates 24, each having a thickness of 2 mm.
  • the hand lever 8, 9 form a maximum opening angle and the jaws 3, 4 with the dies 5, 6 have a maximum distance, which preferably form an angle of ⁇ 4 ° due to the pivotable mounting in the region of the pivot bearing 23. If, starting from this open position, the working stroke passes in the closing direction, the pivoting of the movable hand lever 9 in the direction of the fixed hand lever 8 leads to a pivoting of the extension 32 with the contact contour 33. This has the consequence that the contact contour 33 is a relative movement to the contact contour 38 of the toggle lever component 35 performs.
  • Fig. 5 shows the toggle lever 13 formed in this way in a detail in the open position
  • Fig. 6 shows the toggle lever drive 13 with appropriate representation in the closed position
  • Fig. 5 and 6 are the centers of curvature 34, 67 of the contact contours 33, 30 marked.
  • a first toggle lever 47 is formed in the region of the connecting axis of the center of curvature 34 of the contact contour 33 with the center of curvature 67 of the contact contour 30, which here corresponds to the axis of the mounting hole 27.
  • An imaginary knee joint 48 is formed at the center of curvature 34.
  • a second toggle 49 of the knee lever drive 13 results in the region of the connecting axis between the pivot axis 46 of the pivot bearing 20 and the center of curvature 34.
  • a knee angle 50 is slightly> 90 °, for example in the range of 95 ° to 120 °.
  • Fig. 6 shows the toggle lever drive 13 in the closed position, in which the knee angle 50 has approximated the extended position.
  • the knee angle 50 is between 165 ° and 178 °, for example between 170 ° and 175 °.
  • the toggle lever 39 is formed by the material region of the extension 32 between the center of curvature 34 and the pivot axis 46.
  • the contact contour 30 of the toggle lever component 28 formed by a cylindrical pin 52.
  • the toggle lever component 35 or the pressure body 36 in this case has an inner bore 53, which forms the contact contour 37 in this case.
  • another opening spring 54 is present. This is integrally formed by the toggle lever component 35 in the form of a spring arm 55. With the pivoting of the toggle lever component 35 via the working stroke of the spring arm 55 comes to rest on a stop not shown here. The spring arm 55 is elastically deformed with further closing movement. It is possible that the opening spring 43 is acted upon during the entire working stroke, while the opening spring 54 is acted upon only in the end region of the closing movement with approach to the closed position or extended position of the toggle 13 and only serves to jamming or blocking the toggle 13 with reaching the To avoid closed position.
  • the forceps jaw carrier plate 24 a stop 56, here in the form of a bolt which acts on the opening spring 43 with the pivoting of the forceps jaw carrier plate 24.
  • the stop 56 is formed by the knee lever component 28. Furthermore, the toggle lever component 28 forms an opening spring 57, here with a spring arm 58. In particular, in the end region of the closing movement of the spring arm 58 comes under increasing load to rest on the toggle lever component 35th
  • the pliers body 21 is not formed in one piece. Rather, here forms a pliers body part 59, the hand lever plate 31, a bearing bore 19 and the teeth 39 of the Zwangsgesperres 41.
  • a second forceps body part 60 forms the extension 32, the bearing bore and the contact contour 33.
  • the forceps body parts 59, 60 are then as in Fig. 15 can be seen overlapping and rigidly connected to each other over the extending through the bore 19 bearing and fastening bolts and another, extending through a mounting hole 61 mounting bolts.
  • Fig. 16 1 shows an embodiment in which the toggle lever component 35 is rectangular in a rough approximation with contact contours 37, 38 formed in the region of the opposite shorter sides.
  • the toggle lever component 28 has a pin 52, opposite which a further toggle lever element Component 62, namely a sliding ring, is rotatably mounted. The sliding ring then rolls during the working stroke with its lateral surface on the contact contour 37.
  • the toggle element 35 is rotatably mounted on a pin 52 of the toggle lever component 28, wherein here also the pin 52 with its lateral surface forms the contact contour 30. From the spatial view according to Fig. 18 you can see that here the dies 5, 6 are not formed as Crimpgesenke, but have cutting 63, 64, so that here the pliers 1 forms a cutting pliers 65.
  • Fig. 19 to 23 show a pair of pliers 1 in training as a tube crimping pliers 66.
  • a pliers body 15 is formed with a fixed hand lever 8 and rigid fixed thereto fixed jaw 3 with associated die 5.
  • the hand lever 8 and the jaw 8 are formed in two pieces and connected to each other via fastening bolts.
  • the die 5 may be rigidly attached to the tong body 15 or be interchangeable.
  • the pivot bearing 23 is arranged for the movable jaw 4 in the region of the pliers head 12.
  • the movable jaw 4 carries a die 6.
  • the dies 5, 6 form for the tube pressing tool 66 a receptacle 7 for the compression of fittings for a pipe joint.
  • the pliers body 21 via the hand lever plate 31, the bearing bore 19 for the formation of the pivot bearing 20, the extension 32, the contact contour 33 and the teeth 39.
  • the pliers body 21 is not cranked. Rather, the extension 32 extends substantially in extension of the hand lever plate 31 via the pivot bearing 20 also.
  • On the opposite side of the contact contour 37 of the toggle lever component 35 is directly in contact with a contact contour 30, which of the movable jaw 4th is trained.
  • Fig. 19 shows the tube crimping pliers 66 in the closed position shows
  • Fig. 20 shows the pipe crimping pliers in the open position.
  • Fig. 21 and 22 is the toggle lever 13 shown, namely in Fig. 21 for the closed position, in which the knee angle 50 has approximated the extended position, preferably with a knee angle of 165 ° to 175 °, and in Fig. 22 in the open position, in which the knee angle is> 90 °, preferably in the range of 90 ° to 100 °.
  • Fig. 23 shows the pipe crimping tool 36 in the closed position in a three-dimensional view.
  • the pliers body 21 forms a stop 68, via which the closed position is predetermined.
  • the stop 68 which is arranged here in the region of the hand lever plate 31, come to bear against a corresponding stop 69, the forceps jaw carrier plate 24.
  • the pliers are preferably a panel construction in which no bent or milled parts are present. Rather, only punched parts are used, wherein the number of stampings is reduced or minimized by the inventive design.
  • the punched parts and plates used for the drive mechanism, in particular the toggle lever drive, are preferably all arranged in one plane. Due to the relatively large diameter of the contact contours results in a low surface pressure in the contact areas despite the high transmitted forces, so that may thin plates (especially with a thickness of less than 3.0 mm, 2.5 mm or even 2.0 mm ) can be used for power transmission.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Manufacturing & Machinery (AREA)
  • Gripping Jigs, Holding Jigs, And Positioning Jigs (AREA)
  • Hand Tools For Fitting Together And Separating, Or Other Hand Tools (AREA)
  • Manufacturing Of Electrical Connectors (AREA)
  • Orthopedics, Nursing, And Contraception (AREA)
  • Scissors And Nippers (AREA)
EP16156231.9A 2016-02-18 2016-02-18 Pince comprenant un systeme de levier a genouillere Withdrawn EP3208044A1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
EP16156231.9A EP3208044A1 (fr) 2016-02-18 2016-02-18 Pince comprenant un systeme de levier a genouillere
TW106101385A TW201729949A (zh) 2016-02-18 2017-01-16 具有肘桿傳動機構的鉗
US15/434,625 US20170239788A1 (en) 2016-02-18 2017-02-16 Pliers Comprising a Toggle Lever Drive
CN201710085787.XA CN107088846A (zh) 2016-02-18 2017-02-17 具有肘杆传动机构的钳
JP2017028288A JP2017144550A (ja) 2016-02-18 2017-02-17 トグルレバー駆動を有するプライヤ

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP16156231.9A EP3208044A1 (fr) 2016-02-18 2016-02-18 Pince comprenant un systeme de levier a genouillere

Publications (1)

Publication Number Publication Date
EP3208044A1 true EP3208044A1 (fr) 2017-08-23

Family

ID=55405171

Family Applications (1)

Application Number Title Priority Date Filing Date
EP16156231.9A Withdrawn EP3208044A1 (fr) 2016-02-18 2016-02-18 Pince comprenant un systeme de levier a genouillere

Country Status (5)

Country Link
US (1) US20170239788A1 (fr)
EP (1) EP3208044A1 (fr)
JP (1) JP2017144550A (fr)
CN (1) CN107088846A (fr)
TW (1) TW201729949A (fr)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3553899A1 (fr) 2018-04-11 2019-10-16 Wezag GmbH Werkzeugfabrik Outil de sertissage
EP3572187A3 (fr) * 2018-05-23 2020-02-12 Wezag GmbH Werkzeugfabrik Pince de sertissage, réseau de pinces de sertissage, procédé de sertissage
EP3614507A1 (fr) 2018-08-23 2020-02-26 Wezag GmbH Werkzeugfabrik Pinces à presser ou à sertir
EP3656504A1 (fr) 2018-11-20 2020-05-27 Wezag GmbH Werkzeugfabrik Outil de moulage, ensemble d'outil de moulage, réseau d'outils de moulage et procédé de moulage d'une pièce à usiner
US10958030B2 (en) 2017-04-25 2021-03-23 Wezag Gmbh Werkzeugfabrik Jaw tool and jaw tool group
EP3834989A1 (fr) 2019-12-11 2021-06-16 WEZAG GmbH & Co. KG Outil pince à main et procédé de montage d'un tel outil
US11346732B2 (en) 2019-11-11 2022-05-31 Wezag Gmbh & Co. Kg Crimping pliers, group of crimping pliers and use of a die half
US11605928B2 (en) 2018-05-23 2023-03-14 Wezag Gmbh & Co. Kg Manual pliers tool
EP4371705A1 (fr) 2022-11-15 2024-05-22 WEZAG GmbH & Co. KG Procédé d'assemblage d'un ensemble d'actionnement de pince, ensemble d'actionnement de pince et pince
EP4371707A1 (fr) 2022-11-15 2024-05-22 WEZAG GmbH & Co. KG Ensemble d'actionnement de pince, pince et procédé d'assemblage

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Publication number Priority date Publication date Assignee Title
USD828132S1 (en) * 2017-04-27 2018-09-11 Yueqing Iwiss Electric Co., Ltd. Pex crimping tool
CN111788745B (zh) * 2018-03-15 2022-07-26 欧梯克工具公司 卷压工具
EP3553900B1 (fr) * 2018-04-11 2020-07-15 Wezag GmbH Werkzeugfabrik Mâchoire pivotante de pince du type à plaques et pince de sertissage pourvue de mâchoire pivotante de pince
CN108747881B (zh) * 2018-06-12 2020-03-31 东旭（昆山）显示材料有限公司 一种压接钳
TWI751903B (zh) * 2021-02-03 2022-01-01 日崟興業股份有限公司 具快進模式的剪裁工具

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EP1724101A1 (fr) 2005-05-18 2006-11-22 Werner Dinkel Dispositif de protection pour outils de pressage
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EP2305428A1 (fr) 2009-09-30 2011-04-06 Wezag GmbH Werkzeugfabrik Pince
EP2672581A1 (fr) 2012-06-05 2013-12-11 Wezag GmbH Werkzeugfabrik Pince de sertissage pour connecteur solaire avec aide au positionnement
EP2905848A1 (fr) 2014-02-06 2015-08-12 Wezag GmbH Werkzeugfabrik Pince de pression

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DE3708727C2 (fr) 1986-04-09 1988-07-28 Wezag Gmbh Werkzeugfabrik, 3570 Stadtallendorf, De
DE4303180C1 (de) 1993-02-04 1994-01-27 Wezag Gmbh Von Hand betätigbare Schere zum Durchtrennen von Kabel, Profilen, Ästen o. dgl.
DE4427553C2 (de) 1994-08-04 1998-06-10 Wezag Gmbh Werkzeug zum Crimpen, Schneiden, Pressen o. dgl.
DE19709639A1 (de) 1997-03-08 1998-09-10 Wezag Gmbh Zange zum Verpressen von Fassungen, Rohren, Kabelschuhen u. dgl.
DE19713580C2 (de) 1997-04-02 1999-12-30 Wezag Gmbh Preßzange zum Verformen eines Werkstückes
DE19924087C2 (de) 1999-05-26 2002-06-20 Wezag Gmbh Zange zum Verpressen von Fassungen, Rohren, Kabelschuhen und dgl.
DE19924086C2 (de) 1999-05-26 2002-08-08 Wezag Gmbh Zange zum Verpressen von Fassungen, Rohren, Kabelschuhen und dgl.
US6161416A (en) 1999-06-16 2000-12-19 Rennsteig Werkzeuge Gmbh Tool for crimping contact elements
DE19963097C1 (de) 1999-12-24 2001-04-12 Wezag Gmbh Zange zum Verpressen eines Werkstücks
DE10056900C1 (de) 2000-11-16 2002-08-08 Wezag Gmbh Handbetätigbare Zange zum Crimpen, Schneiden, Pressen o. dgl.
DE10132413C2 (de) 2001-07-04 2003-07-31 Wezag Gmbh Verfahren und Zange zum Schneiden amorpher Lichtwellenleiterkabel
DE10140270B4 (de) 2001-08-16 2004-09-30 Wezag Gmbh Werkzeugfabrik Presszange zum Einpressen mehrerer Kerben auf dem Umfang eines Kontaktelementes
DE10346241B3 (de) 2003-10-06 2004-08-12 Wezag Gmbh Werkzeugfabrik Zange zum Verpressen von Werkstücken
EP1724101A1 (fr) 2005-05-18 2006-11-22 Werner Dinkel Dispositif de protection pour outils de pressage
DE102007001235B4 (de) 2007-01-08 2010-06-02 Wezag Gmbh Werkzeugfabrik Presszange zum Verpressen von Werkstücken
WO2008128854A1 (fr) * 2007-04-24 2008-10-30 Rennsteig Werkzeuge Gmbh Outil à pince manuel
DE102008005472B3 (de) 2008-01-22 2009-02-26 Wezag Gmbh Werkzeugfabrik Presszange
DE102008007303B4 (de) 2008-02-02 2009-12-10 Wezag Gmbh Werkzeugfabrik Spreizzange
DE102008012011B3 (de) 2008-03-01 2009-12-03 Wezag Gmbh Werkzeugfabrik Zangenkopf
EP2305428A1 (fr) 2009-09-30 2011-04-06 Wezag GmbH Werkzeugfabrik Pince
EP2672581A1 (fr) 2012-06-05 2013-12-11 Wezag GmbH Werkzeugfabrik Pince de sertissage pour connecteur solaire avec aide au positionnement
EP2905848A1 (fr) 2014-02-06 2015-08-12 Wezag GmbH Werkzeugfabrik Pince de pression

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10958030B2 (en) 2017-04-25 2021-03-23 Wezag Gmbh Werkzeugfabrik Jaw tool and jaw tool group
US11424587B2 (en) 2018-04-11 2022-08-23 Wezag Gmbh & Co. Kg Crimping tool
EP3553899A1 (fr) 2018-04-11 2019-10-16 Wezag GmbH Werkzeugfabrik Outil de sertissage
EP3572187A3 (fr) * 2018-05-23 2020-02-12 Wezag GmbH Werkzeugfabrik Pince de sertissage, réseau de pinces de sertissage, procédé de sertissage
US11605928B2 (en) 2018-05-23 2023-03-14 Wezag Gmbh & Co. Kg Manual pliers tool
EP3614507A1 (fr) 2018-08-23 2020-02-26 Wezag GmbH Werkzeugfabrik Pinces à presser ou à sertir
US11597064B2 (en) 2018-08-23 2023-03-07 Wezag Gmbh & Co. Kg Pressing tongs or crimping pliers
EP3656504A1 (fr) 2018-11-20 2020-05-27 Wezag GmbH Werkzeugfabrik Outil de moulage, ensemble d'outil de moulage, réseau d'outils de moulage et procédé de moulage d'une pièce à usiner
US11381049B2 (en) 2018-11-20 2022-07-05 Wezag Gmbh Werkzeugfabrik Pressing pliers network and method for pressing a workpiece
US11346732B2 (en) 2019-11-11 2022-05-31 Wezag Gmbh & Co. Kg Crimping pliers, group of crimping pliers and use of a die half
EP3834989A1 (fr) 2019-12-11 2021-06-16 WEZAG GmbH & Co. KG Outil pince à main et procédé de montage d'un tel outil
EP4371705A1 (fr) 2022-11-15 2024-05-22 WEZAG GmbH & Co. KG Procédé d'assemblage d'un ensemble d'actionnement de pince, ensemble d'actionnement de pince et pince
EP4371707A1 (fr) 2022-11-15 2024-05-22 WEZAG GmbH & Co. KG Ensemble d'actionnement de pince, pince et procédé d'assemblage

Also Published As

Publication number Publication date
JP2017144550A (ja) 2017-08-24
US20170239788A1 (en) 2017-08-24
CN107088846A (zh) 2017-08-25
TW201729949A (zh) 2017-09-01

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