EP0448785A2 - Pince pour tubes ou armatures - Google Patents

Pince pour tubes ou armatures Download PDF

Info

Publication number
EP0448785A2
EP0448785A2 EP90122356A EP90122356A EP0448785A2 EP 0448785 A2 EP0448785 A2 EP 0448785A2 EP 90122356 A EP90122356 A EP 90122356A EP 90122356 A EP90122356 A EP 90122356A EP 0448785 A2 EP0448785 A2 EP 0448785A2
Authority
EP
European Patent Office
Prior art keywords
lever
pliers
slot
joint
grooves
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Withdrawn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
EP90122356A
Other languages
German (de)
English (en)
Other versions
EP0448785A3 (en
Inventor
Hans Wiemer
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.)
Vbw Vereinigte Beckersche Werkzeugfabriken & Co KG GmbH
Original Assignee
Vbw Vereinigte Beckersche Werkzeugfabriken & Co KG GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Vbw Vereinigte Beckersche Werkzeugfabriken & Co KG GmbH filed Critical Vbw Vereinigte Beckersche Werkzeugfabriken & Co KG GmbH
Publication of EP0448785A2 publication Critical patent/EP0448785A2/fr
Publication of EP0448785A3 publication Critical patent/EP0448785A3/de
Withdrawn legal-status Critical Current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
    • B25B7/06—Joints
    • B25B7/10—Joints with adjustable fulcrum

Definitions

  • the invention relates to pliers, in particular pipe, gripping or fitting pliers, with two two-armed levers fastened to one another by sliding joints, the shorter arms of which have gripping jaws for the workpiece, a lever near the axis of rotation on a surface facing the other lever concentrically concentric with the axis of rotation Forms grooves and / or beads in which at least one correspondingly shaped bead and / or groove engages on a facing surface of the other lever (grooved sliding joint).
  • Two versions of these pliers are known in particular from DIN 5231.
  • two two-armed pliers levers are placed on top of one another and their joint is formed by a grooved sliding joint.
  • one of the two two-armed pliers levers is inserted through a slot of the other lever and the joint is formed by a sliding joint that has a joint pin that slides in a longitudinal slot of the inserted lever and has a non-circular cross section that in the working position in certain partially cylindrical Recesses of the longitudinal slot is held.
  • a grooved sliding joint forms larger contact surfaces and thus less wear and thus better power transmission, a push-through construction has the advantages of a more even load distribution, since tilting in particular is prevented.
  • the object of the invention is to improve pliers of the type mentioned in such a way that they have a uniform load distribution in the case of large contact surfaces of the joint.
  • the lever having the slot have beads and / or grooves on the inside of only one of its two encompassing surfaces and the other lever has at least one corresponding groove and / or bead on only one side surface.
  • the lever having the slot has beads and / or grooves on the inner sides of both encompassing surfaces and the other lever has at least one corresponding groove on both side surfaces and / or bulge, so that an optimal load distribution and particularly large contact surfaces can be achieved.
  • Optimal protection against jamming is achieved if on the pliers lever, which has the slot for the other lever, on the long handle arm near the joint, there is a projection on which the other lever rests when the pliers are closed.
  • the pliers are used as pipe, gripping, water pump or fitting pliers and have two two-armed levers 1, 2, the shorter arms 1a, 2a of which are gripping jaws for the workpiece to be gripped and the longer arms 1b, 2b of which are handles for actuation.
  • the first lever 1 forming the lower gripping jaw 1c has a slot 3 in the area of the axis 4, through which the second lever 2 is inserted.
  • the first lever thus forms two side walls 5a, 5b in the region of the axis 4, which are parallel to one another and between which the second lever lies with a plate-shaped region.
  • the width of the slot 3 is only slightly larger than the thickness of the plate-shaped area 2d.
  • the area 2d has an elongated hole 6, in which the bolt-shaped axis 4 is displaceably guided.
  • beads 7 On at least one of the two side surfaces of the plate-shaped region 2d there are beads 7, which are concentric to the axis 4 and which form free spaces, in particular grooves 8, between them. At least one bead on the inside of the facing wall 5b of the first lever 1 slides into these spaces or grooves. Depending on the position of the axis 4 in the elongated hole 6, the bead formed on the wall 5b engages in a specific groove 8 of the other lever. Several beads can also be arranged on the wall 5b.
  • the plate-shaped area 2d has beads 7 and grooves 8 on both side surfaces, so that beads are additionally formed on the inside of the wall 5a of the lever 1.
  • a projection 9 is formed near the joint, which faces the arm 2b and, when the pliers are closed, bears against the arm 2b in order to prevent the user's hand from pinching.
EP19900122356 1990-03-30 1990-11-23 Pipe- or fitting-pliers Withdrawn EP0448785A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE9003713U 1990-03-30
DE9003713U DE9003713U1 (fr) 1990-03-30 1990-03-30

Publications (2)

Publication Number Publication Date
EP0448785A2 true EP0448785A2 (fr) 1991-10-02
EP0448785A3 EP0448785A3 (en) 1991-11-27

Family

ID=6852484

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19900122356 Withdrawn EP0448785A3 (en) 1990-03-30 1990-11-23 Pipe- or fitting-pliers

Country Status (2)

Country Link
EP (1) EP0448785A3 (fr)
DE (1) DE9003713U1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19518555A1 (de) * 1995-05-19 1996-11-21 Liou Mou Tang Rohrzange mit ausgezeichneter Festigkeit
DE102005010464A1 (de) * 2005-03-08 2006-10-05 Knipex-Werk C. Gustav Putsch Kg Greifzange

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004016154B4 (de) * 2003-04-02 2009-04-23 Irwin Industrial Tool Co., Freeport Schnell einstellbare Zange
US7861622B2 (en) 2008-07-28 2011-01-04 Irwin Industrial Tool Company Locking pliers
USD782891S1 (en) 2015-04-02 2017-04-04 Milwaukee Electric Tool Corporation Locking pliers

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2882775A (en) * 1956-06-20 1959-04-21 Kelsey Hayes Co Adjustable hand pliers
DE1138718B (de) * 1958-02-14 1962-10-25 David Kotthaus Ag Zange mit verstellbarer Maulweite
DE8403814U1 (de) * 1984-02-09 1984-05-10 Fa. Gerd Heil, 5630 Remscheid Zange mit verstellbarer Maulweite

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE836928C (de) * 1949-12-28 1952-04-17 David Kotthaus A G Verstellbare Rohr- oder Wasserpumpenzange
DE2030226A1 (de) * 1970-06-19 1971-12-23 Kuhbier, Carl, 4400 St. Mauritz Zange, insbesondere Wasserpumpenzange

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2882775A (en) * 1956-06-20 1959-04-21 Kelsey Hayes Co Adjustable hand pliers
DE1138718B (de) * 1958-02-14 1962-10-25 David Kotthaus Ag Zange mit verstellbarer Maulweite
DE8403814U1 (de) * 1984-02-09 1984-05-10 Fa. Gerd Heil, 5630 Remscheid Zange mit verstellbarer Maulweite

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19518555A1 (de) * 1995-05-19 1996-11-21 Liou Mou Tang Rohrzange mit ausgezeichneter Festigkeit
DE19518555C2 (de) * 1995-05-19 1999-03-25 Liou Mou Tang Zange
DE102005010464A1 (de) * 2005-03-08 2006-10-05 Knipex-Werk C. Gustav Putsch Kg Greifzange
DE102005010464B4 (de) * 2005-03-08 2017-01-19 Knipex-Werk C. Gustav Putsch Kg Greifzange

Also Published As

Publication number Publication date
DE9003713U1 (fr) 1990-05-31
EP0448785A3 (en) 1991-11-27

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