EP0699117B1 - Precision pliers - Google Patents

Precision pliers Download PDF

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Publication number
EP0699117B1
EP0699117B1 EP95907162A EP95907162A EP0699117B1 EP 0699117 B1 EP0699117 B1 EP 0699117B1 EP 95907162 A EP95907162 A EP 95907162A EP 95907162 A EP95907162 A EP 95907162A EP 0699117 B1 EP0699117 B1 EP 0699117B1
Authority
EP
European Patent Office
Prior art keywords
pliers
handles
covers
shanks
front portion
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
EP95907162A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0699117A1 (en
Inventor
Conny Jansson
Hans Himbert
Hakan Bergqvist
Olle Bobjer
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.)
Kapman AB
Original Assignee
Sandvik AB
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 Sandvik AB filed Critical Sandvik AB
Publication of EP0699117A1 publication Critical patent/EP0699117A1/en
Application granted granted Critical
Publication of EP0699117B1 publication Critical patent/EP0699117B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25G—HANDLES FOR HAND IMPLEMENTS
    • B25G1/00—Handle constructions
    • B25G1/10—Handle constructions characterised by material or shape
    • B25G1/102—Handle constructions characterised by material or shape the shape being specially adapted to facilitate handling or improve grip

Definitions

  • pliers are used to hold and orient small items, especially during assembly and service of instruments, electronics and precision mechanics, also in surgery and cosmetic treatments.
  • a pliers according to the preamble of claim 1 is known, which is constructed with a view to the anatomy and anthropometry of the human hand for facilitating its manipulation.
  • the invention concerns a new configuration of the handles of the pliers to make it possible to handle and orient small items with higher precision than with previously known pliers.
  • figure 1 shows a side view of a pliers according to the invention
  • figure 2 shows in a front view how the pliers is held in the hand during high precision work.
  • a pliers according to the invention is shown in figure 1 and comprises two shanks hingedly connected at a joint (13).
  • the shanks are shaped as jaws (11,12) and behind the hinge as handles with covers of soft polymer material.
  • the jaws (11,12) may be different according to their use, round, flat, curved or sharp edged.
  • the handles consist of two portions, a rear portion (16,17) to be gripped by the palm of the hand, and a front portion (14,15) to be gripped with the thumb and index fingers.
  • the handles are curved to have a convex outer contour, and to let the widest span for a closed pliers, measured on the outside of the handles, be close to the center of the rear portion, not at the rear end (20,21) of it.
  • the front portion (14,15) is so shaped that when the pliers is closed the outsides (18,19) of the handle covers together form at least half of a rotational surface, preferably cylindrical or conical, which can be gripped with the thumb and index finger as shown in figure 2.
  • the span measured on the outsides shall be smaller in the front portion then in the rear portion.
  • the outsides (18,19) will each form a circular arc of at least 90 degrees, preferably 120 degrees, and when the pliers is closed by squeezing the handles, the arcs will have substantially the same center, making the span in this section substantially equal to the diameter of the arcs.
  • the pliers can be easily twirled between the thumb and the index finger to orient the shanks and any item held between the jaws in any desired angular position.
  • the force between the thumb and the index finger will not cause any resulting torque on the pliers or the item.
  • a corresponding motion with a pliers according to prior art where the handle covers do not form any cylindrical or conical front portion (14,15) will require either changing the grip of the palm, or performing the motion by rotating he whole hand, neither of which can be done with high precision.
  • a pliers according to the invention will have handle covers with great lateral width, at least 70 % of the gripping span in the front portion when the pliers is closed.
  • a pliers according to the invention can be combined with return springs or locking means of known types.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Magnetic Heads (AREA)
  • Glass Compositions (AREA)
  • Gripping Jigs, Holding Jigs, And Positioning Jigs (AREA)
  • Scissors And Nippers (AREA)
  • Heterocyclic Carbon Compounds Containing A Hetero Ring Having Nitrogen And Oxygen As The Only Ring Hetero Atoms (AREA)
  • Saccharide Compounds (AREA)
  • Catalysts (AREA)
EP95907162A 1994-03-16 1994-12-08 Precision pliers Expired - Lifetime EP0699117B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
SE9400878A SE9400878L (sv) 1994-03-16 1994-03-16 Precisionstång
SE9400878 1994-03-16
PCT/SE1994/001187 WO1995024993A1 (en) 1994-03-16 1994-12-08 Precision pliers

Publications (2)

Publication Number Publication Date
EP0699117A1 EP0699117A1 (en) 1996-03-06
EP0699117B1 true EP0699117B1 (en) 1997-08-27

Family

ID=20393291

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95907162A Expired - Lifetime EP0699117B1 (en) 1994-03-16 1994-12-08 Precision pliers

Country Status (8)

Country Link
EP (1) EP0699117B1 (ru)
JP (1) JPH09500835A (ru)
AT (1) ATE157294T1 (ru)
DE (1) DE69405227T2 (ru)
FI (1) FI103484B (ru)
NO (1) NO179166C (ru)
SE (1) SE9400878L (ru)
WO (1) WO1995024993A1 (ru)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE20001498U1 (de) * 2000-01-27 2001-06-13 Wolfcraft GmbH, 56746 Kempenich Spannzwinge mit Weichkunststoff überzogener Griffzone
RU182838U1 (ru) * 2017-10-11 2018-09-04 Валерий Иванович Спрыгин Шарнирно-губцевый инструмент

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3545411A1 (de) * 1985-12-20 1987-06-25 Schraubenwerke Gaisbach Gmbh & Ergonomisch verbesserte kombizange

Also Published As

Publication number Publication date
EP0699117A1 (en) 1996-03-06
WO1995024993A1 (en) 1995-09-21
FI955499A (fi) 1995-11-30
NO954617D0 (no) 1995-11-15
SE9400878D0 (sv) 1994-03-16
NO179166B (no) 1996-05-13
NO954617L (no) 1995-11-16
FI955499A0 (fi) 1995-11-15
SE501598C2 (sv) 1995-03-27
DE69405227T2 (de) 1998-01-02
NO179166C (no) 1996-08-21
FI103484B1 (fi) 1999-07-15
SE9400878L (sv) 1995-03-27
FI103484B (fi) 1999-07-15
DE69405227D1 (de) 1997-10-02
ATE157294T1 (de) 1997-09-15
JPH09500835A (ja) 1997-01-28

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