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EP0368824B1 - Pince - Google Patents

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Publication number
EP0368824B1
EP0368824B1 EP89850358A EP89850358A EP0368824B1 EP 0368824 B1 EP0368824 B1 EP 0368824B1 EP 89850358 A EP89850358 A EP 89850358A EP 89850358 A EP89850358 A EP 89850358A EP 0368824 B1 EP0368824 B1 EP 0368824B1
Authority
EP
European Patent Office
Prior art keywords
rocker
tool body
die carrier
pliers
pliers according
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.)
Expired - Lifetime
Application number
EP89850358A
Other languages
German (de)
English (en)
Other versions
EP0368824A2 (fr
EP0368824A3 (en
Inventor
Ulrich Wiebe
Hartmut Schmode
Hans Undin
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.)
Weidmueller Interface GmbH and Co KG
Original Assignee
Weidmueller Interface GmbH and Co KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Weidmueller Interface GmbH and Co KG filed Critical Weidmueller Interface GmbH and Co KG
Publication of EP0368824A2 publication Critical patent/EP0368824A2/fr
Publication of EP0368824A3 publication Critical patent/EP0368824A3/de
Application granted granted Critical
Publication of EP0368824B1 publication Critical patent/EP0368824B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • 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

Definitions

  • the invention relates to a pliers device of the type mentioned in the preamble of the appended claim 1.
  • the bearing of the actuating lever is in the position of use below the hand, which corresponds better to the opening width of the hand, and among other things. has the advantage that the operating lever can be gripped and gripped immediately with the longest fingers of the hand, even in the mostly open position of the device.
  • a device of this type is described, for example, in US-A-3 204 445.
  • This previously known device has the features stated in the preamble of the appended claim 1, including an elongated device body, at the first end of which a device for processing a work object, e.g. effective part provided by cutting or pressing is arranged with two jaw carriers, an actuating lever being articulated at the opposite second end by means of a pivot pin, and a rigid drive rod connecting the actuating lever to one of the jaw carriers.
  • the previously known device is intended for those applications where the approach movement of one jaw carrier to the other is to take place in parallel, the jaw carrier in question being arranged on a carriage which can be displaced in a straight line and which is acted upon by the drive rod.
  • the previously known device is also provided with a locking mechanism to prevent premature termination of the closing movement of the movable jaw carrier.
  • the present invention has for its object to create a pliers device of the type mentioned, but with scissor-like movement (ie pivoting movement) of the jaw carrier, and with a simple, ergonomically advantageous construction, in which device work objects of different sizes within a certain range in one and same end position of the jaw carriers can be processed precisely.
  • a device according to the invention with crimp jaws fastened to the jaw carriers can serve, for example, as crimping pliers with front entry, which can be driven with a small hand force, in particular for crimping so-called ferrules according to European standard, which are in the range of approximately 0.25 mm2 to 1.5 mm2 cross-sectional area.
  • a device according to the invention has an elongated device body 11, at the first end 11A of which an effective part is arranged, an actuating lever 12 being articulated at the opposite second end 11B by means of a first connecting pin 11C.
  • the effective part comprises a first jaw carrier 13A, which is firmly connected to the first end 11A of the appliance body 11, or is preferably made in one piece with the appliance body 11, and a movable second jaw carrier 13B.
  • the second jaw carrier 13B is rigidly connected to a link 14, or is preferably produced in one piece with it.
  • the link 14 is articulated to the device body 11 by means of a second pivot pin 14A in a special way, which will be explained in more detail below.
  • Each jaw carrier 13A, 13B carries, if necessary interchangeable, processing element, for example one of the crimping jaws mentioned above, which is not shown for the sake of clarity, and openings A are provided in the jaw carriers for fastening (by means of screw bolts and the like).
  • the effective part is in an upward (ie in the direction from which the actuating lever 12 is articulated) bent part of the device body 11.
  • the actuating lever 12 has at its articulation end a bent wider part 12 'in which the first articulation pin 11C is arranged.
  • a rigid drive rod 16 is at its first end by means of a first connecting pin 16A to the actuating lever 12 (within the wider part 12 ′), and at its second end by means of a second connecting pin 16B to the link 14 (at a distance from the second pivot pin 14A) articulated.
  • the drive rod 16 runs, in particular in the closed position of the device (FIG. 2), essentially parallel to the device body 11.
  • the device body 11 is preferably (together with the first jaw carrier 13A) manufactured as a flat, elongated plate, and the link 14 (together with the second jaw carrier 13B) and the drive rod 16 are preferably doubled according to FIG. that on both sides of the device body 11 there is a specimen (link) which is connected to its counterpart by means of the pivot and connecting pins 14A, 16A, 16B already mentioned.
  • the two jaw supports 13B, the two links 14, and the two drive rods 16 each form a jaw support member 13B, a link member 14 and a drive laboratory member 16, which thus comprises two jaw supports, two link members and two drive rod members.
  • Circular arc-shaped slots 16 ', 16' in the device body 11 with centers of curvature in the pivot pins 14A, 11C allow the connecting pin 16A, 16B to pass through the device body 11.
  • At least one of the slots 16 ', 16' can be pivoted by its length dimension form the end stop member delimiting the link 14 and / or the actuating lever 12 around the respective pivot pin 14A or 11C.
  • the actuating lever 12 is fork-shaped at its connection end and encloses the device body 11 with its two legs.
  • the first pivot pin 11C is mounted in the legs of the actuating lever 12 and in the device body 11 in round holes of a size corresponding to the pin diameter.
  • a tension spring 12C (or one on each side of the device body 11) acting between the drive rod 16 and the device body 11 strives for the device in the open position, i.e. with the operating lever 12 fully pivoted out, and the most distant jaw supports 13A, 13B.
  • the device body 11, together with the components carried by it (with the exception of the jaw supports and the actuating lever), is preferably in an outer, e.g. comprised of two handle-shaped outer sheaths which are joined together along a plane of symmetry running in the longitudinal direction of the device body and include handle-shaped outer shells.
  • This envelope is not shown in the drawing for the sake of clarity; their contours essentially follow (with a certain addition) the contours of the device body 11 shown in the drawing.
  • a compensating spring element is rigidly connected, which has the shape of an at least to a limited extent in the direction parallel to the plane of symmetry mentioned (ie essentially in the plane of the drawing of FIGS. 1-3), and transversely to the longitudinal direction of the device body 11 (ie in the 1-3) resiliently resilient arm 15 having a free end 15A.
  • Such a resilient arm can, as is known, for example, in the case of circuit boards from mechanical masterworks (where, however, no flexibility is sought in the above-mentioned direction), and as is shown in the drawing, by means of a suitably designed, the entire thickness of the backdrop 14 cutting incision 14B can be produced in one piece with the backdrop 14 if it consists of a material of corresponding properties (for example sheet steel).
  • an opening 15A ' is provided, in which a holding pin 17A is arranged, by means of which a short web (or tab) 17 is connected at one end to the link 14.
  • the web 17 has at the other end a round hole with the same diameter as the second pivot pin 14A anchored in this round hole.
  • an opening 14A ' is provided for the passage of the pivot pin 14A' (preferably an elongated hole) which is larger than the diameter of the pivot pin 14A, which consequently can move to a certain extent freely in this opening 14A '.
  • the link 14 is thus not rigid and / or directly connected to its pivot pin 14A.
  • the end distance here is understood to mean the mutual distance between the jaw carriers 13A, 13B (in the region of their free ends) which they assume in their end position (this term will be explained later). In practice, this means that objects of different sizes (within certain limits) can be processed between the jaws carried by the jaw carriers without having to change the device, e.g. Wire end ferrules within the cross-sectional range mentioned at the beginning.
  • the second pivot pin 14A passes through the device body 11 in a round opening, the diameter of which corresponds to the pin diameter, while for the holding pin 17A a significantly larger one, in In the drawing not visible opening (possibly a circular slot with the center of curvature in the pin 14A) is provided in the device body 11.
  • the two members of an organ can also be articulated to the device body 11 by such articulation and / or connecting pins, and / or can be connected to members of other organs which do not pass through the device body but are attached to the side surface thereof, or end shortly before.
  • Such a locking mechanism is to prevent a work operation from being carried out completely, and for this purpose it is designed in such a way that it only allows the actuating lever 12, and thus the jaw carrier 13B, to move backwards when the actuating lever 12 has reached a predetermined end position shown in FIG. 2 (which in this case is clearly determined by the previously mentioned end stop member), in which the jaw carrier 13B is at a predetermined end distance B from the jaw carrier 13A.
  • the invention can also be used to advantage in devices without a locking mechanism.
  • the end position is generally to be understood as the greatest possible approximation of the jaw supports, which e.g. can be determined by mutual abutment of the handles or the like.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Gripping Jigs, Holding Jigs, And Positioning Jigs (AREA)
  • Manipulator (AREA)
  • Chain Conveyers (AREA)

Claims (9)

  1. Tenaille comprenant un corps allongé (11) qui comporte à sa première extrémité (11A) une partie active prévue pour le façonnage d'un objet ouvré et comprenant un premier organe fixe porte-machoire (13A) et un second organe mobile porte-machoire (13B), un levier d'actionnement (12), qui est articulé à la seconde extrémité opposée (11B) du corps (11), attaquant au moyen d'un organe de commande (16) le second organe porte-mâchoire (13B), caractérisée en ce que le second organe porte-mâchoire (13B) est disposé sur un organe oscillant en coulisseau (14) qui est monté rotatif au moyen de sa broche d'articulation (14A) sur le corps (11) de l'outil et qui est solidarisé avec au moins un bras (15) qui comporte une extrémité libre (15A) et qui est flexible élastiquement dans une mesure limitée et dans le plan de l'organe en coulisseau (14), une extrémité d'une barrette (17) étant reliée à cette extrémité libre et la broche d'articulation (14A) étant reliée à l'autre extrémité de cette barrette (17) et traversant en cet emplacement le coulisseau (14) dans un trou (14A′) qui est plus grand que le diamètre de la broche d'articulation, de sorte que la position mutuelle du coulisseau (14) et de sa broche d'articulation (14A) est variable dans la mesure de la flexibilité du bras (15).
  2. Tenaille selon la revendication 1, caractérisée en ce que ledit trou (14A′) a la forme d'une boutonnière.
  3. Tenaille selon la revendication 1 ou 2, caractérisée en ce que le ou les bras (15) sont réalisés en une pièce avec l'organe en coulisseau (14).
  4. Tenaille selon la revendication 3, caractérisée en ce que le bras (15) est formé par découpe (14B) dans le coulisseau (14) de la manière usuelle pour les platines de mouvements d'horlogerie.
  5. Tenaille selon l'une ou plusieurs des revendications précédentes, caractérisée en ce que le second organe en machoire (13B), l'organe en coulisseau (14) et l'organe en barre de commande (16) se composent de pièces de machoire, de coulisseau et de barre de commande disposées de part et d'autre du corps (11) et en ce que les deux pièces de chaque organe sont reliées l'une à l'autre au moyen de broches (14A, 16A, 16B) qui traversent le corps (11) de l'outil, des fentes en arc de cercle (16′, 16˝) étant prévues dans le corps (11) pour des broches de liaison (16A, 16B) au moyen desquelles l'organe en barre de commande (16) est monté à ses deux extrémités.
  6. Tenaille selon l'une ou plusieurs des revendications précédentes, caractérisée en ce qu'elle est équipée d'un mécanisme connu de blocage destiné à empêcher une ouverture prématurée.
  7. Tenaille selon la revendication 6, caractérisée en ce que le mécanisme de blocage comprend une rangée de dents (17D) disposée à la seconde extrémité (11B) du corps (11) ainsi qu'un cliquet d'arrêt (17B) soumis à la force d'un ressort (17C), monté oscillant sur le levier d'actionnement (12) et engrenant avec ladite rangée de dents.
  8. Tenaille selon l'une ou plusieurs des revendications précédentes, caractérisée en ce que la première extrémité (11A) du corps (11) est recourbée avec la partie active dans le même sens que celui à partir duquel le levier d'actionnement (12) est raccordé.
  9. Tenaille selon l'une ou plusieurs des revendications précédentes, caractérisée en ce qu'elle est constituée en tenaille de sertissage.
EP89850358A 1988-11-11 1989-10-20 Pince Expired - Lifetime EP0368824B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE19888804083A SE8804083D0 (sv) 1988-11-11 1988-11-11 Taangvertyg
SE8804083 1988-11-11

Publications (3)

Publication Number Publication Date
EP0368824A2 EP0368824A2 (fr) 1990-05-16
EP0368824A3 EP0368824A3 (en) 1990-09-26
EP0368824B1 true EP0368824B1 (fr) 1993-03-31

Family

ID=20373917

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89850358A Expired - Lifetime EP0368824B1 (fr) 1988-11-11 1989-10-20 Pince

Country Status (5)

Country Link
US (1) US4982630A (fr)
EP (1) EP0368824B1 (fr)
DE (1) DE58903956D1 (fr)
ES (1) ES2040501T3 (fr)
SE (1) SE8804083D0 (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5042286A (en) * 1988-05-09 1991-08-27 C.A. Weidmuller Gmbh & Co. Manually operated pliers-type tool
EP0429741B1 (fr) * 1989-11-27 1993-04-21 Weidmüller Interface GmbH & Co. Pinces
DE4026332A1 (de) * 1990-08-21 1992-02-27 Wezag Gmbh Crimpzange zum verpressen von aderendhuelsen
US6023833A (en) * 1999-01-29 2000-02-15 Jacobsmeier; Ernest G. Tool for installation and removal of fastener clips
DE29914764U1 (de) * 1999-08-24 2001-01-04 Connectool GmbH & Co., 32758 Detmold Zange
US6427565B1 (en) * 2000-11-14 2002-08-06 Great Neck Saw Manufacturers, Inc. Parallel grip plier
US9787043B2 (en) * 2012-07-23 2017-10-10 Delphi International Operations Luxembourg S.A.R.L. Hand crimp tool
US20150047208A1 (en) * 2013-08-19 2015-02-19 Amitai Holenberg Double fulcrum tool

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1149060A (en) * 1915-05-03 1915-08-03 Walter H Loper Wrench.
US1180446A (en) * 1915-06-02 1916-04-25 Rufus Harmon Sheldon Wrench.
US1519938A (en) * 1923-09-13 1924-12-16 Donald V Smith Flexible pliers
US1638703A (en) * 1926-02-02 1927-08-09 Charlie A Pendleton Fuse puller
US2743634A (en) * 1951-10-02 1956-05-01 Thomas & Betts Corp Flexible toggle link actuated crimping tool
US2910900A (en) * 1958-01-30 1959-11-03 Nat Telephone Supply Co Adjustable multiple lever tool
US3204445A (en) * 1963-04-16 1965-09-07 Sargent & Co Hand tool
US3575037A (en) * 1969-01-02 1971-04-13 Porter Inc H K Distortion reducing means for jaw portion of compression tool
CA913346A (en) * 1970-11-09 1972-10-31 Sokratis Romas Scissors with force multiplier
DE2301830A1 (de) * 1973-01-15 1974-07-18 Neill Robinson Wilson Selbsteinstellender spannschluessel
US4368577A (en) * 1979-10-15 1983-01-18 Emerson Electric Co. Hand tool for cutting plastic pipe or the like
US4381661A (en) * 1980-03-19 1983-05-03 C. A. Weidmuller Gmbh & Co. Tool having two working jaws
US4758188A (en) * 1987-04-17 1988-07-19 Myl Developments, Ltd. Clamp-like electrical connector
SE8801737D0 (sv) * 1988-05-09 1988-05-09 Weidmueller C A Gmbh Co Handverktyg
JP1578313S (fr) 2016-12-08 2017-06-05

Also Published As

Publication number Publication date
SE8804083D0 (sv) 1988-11-11
DE58903956D1 (de) 1993-05-06
ES2040501T3 (es) 1993-10-16
EP0368824A2 (fr) 1990-05-16
EP0368824A3 (en) 1990-09-26
US4982630A (en) 1991-01-08

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