EP0192610B1 - Pinzetten zum automatischen Spannen und Lösen - Google Patents

Pinzetten zum automatischen Spannen und Lösen Download PDF

Info

Publication number
EP0192610B1
EP0192610B1 EP86810083A EP86810083A EP0192610B1 EP 0192610 B1 EP0192610 B1 EP 0192610B1 EP 86810083 A EP86810083 A EP 86810083A EP 86810083 A EP86810083 A EP 86810083A EP 0192610 B1 EP0192610 B1 EP 0192610B1
Authority
EP
European Patent Office
Prior art keywords
tweezers
legs
ring
tips
friction
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
EP86810083A
Other languages
English (en)
French (fr)
Other versions
EP0192610A3 (en
EP0192610A2 (de
Inventor
Jean-Paul Gabel
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.)
Manufactures dOutils Dumont SA
Original Assignee
Manufactures dOutils Dumont SA
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 Manufactures dOutils Dumont SA filed Critical Manufactures dOutils Dumont SA
Priority to AT86810083T priority Critical patent/ATE57322T1/de
Publication of EP0192610A2 publication Critical patent/EP0192610A2/de
Publication of EP0192610A3 publication Critical patent/EP0192610A3/fr
Application granted granted Critical
Publication of EP0192610B1 publication Critical patent/EP0192610B1/de
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
    • B25B9/00—Hand-held gripping tools other than those covered by group B25B7/00
    • B25B9/02—Hand-held gripping tools other than those covered by group B25B7/00 without sliding or pivotal connections, e.g. tweezers, onepiece tongs

Definitions

  • tweezers or tweezers held in one hand, allow an operator to pick up and hold between objects a small object.
  • the branches of tweezers are generally flexible and transmit to the points gripping the object part of the compressive force of the hand on the branches.
  • the tips are moved to the rest position, except for tweezers with negative action, whose branches are crisscrossed and whose tips open under the effect of the compression of the branches by hand.
  • US Patent No. 2,876,778 describes a clamp for gripping a surgical clip, which is provided with a ring automatically immobilizing, by gravity, the branches of the clamp in the clamping position when it is oriented point in the air after grabbing a surgical clip. The release of the arms of the forceps by the ring takes place automatically when the surgeon directs the forceps point downwards.
  • a clamp of this type is suitable only for an all-or-nothing action, for clamping objects all having the same thickness.
  • the objects to be grasped are of very different dimensions, which requires a different solution.
  • the present invention aims to provide tweezers with automatic locking of the arms in the clamping position of any object, and with automatic unlocking of the arms.
  • tweezers 1 with two elastic branches, identical joined by their inner faces 8 at their rear ends 5.
  • the hand surrounds the tweezers and squeezes or releases the outer faces 7 of the branches 2 to use it , the tightening pressure of the hand being generally applied in the middle of the branches or slightly in front of this middle.
  • the branches 2 are arched to allow an elastic action of the branches on the tips 3 without the branches touching in their middle.
  • a rigid ring 9 can slide freely without friction over a certain path provided in the rear half of the tweezers.
  • the arcuate arms 2 have a spacing such that the ring 9 begins to rub on the external faces 7 of the arms 2, the friction increasing further forward.
  • the ring may have a taper of the inner faces 17 of its opening which face the outer faces 7 of the branches 2 and this taper may be identical to that presented by the outer faces 7 of the arched branches 2 where the ring undergoes friction and stops in its forward movement.
  • a first embodiment in Figures 1 and 2 provides that the spacing of the outer faces 7 of the branches after having presented a minimum again increases slightly at the rear end and this thanks to the insertion of a spacer conical 10 between the adjoining rear ends of the branches 2. When the ring 9 is moved towards the rear end, friction will begin to establish with the outer faces 7 which move apart and will increase rapidly.
  • the operator After having taken the object to be grasped between the points, the operator holds the tweezers vertically, the ring falls by its weight at the front end of its course without friction and is taken slightly beyond the taper of the tweezers. A slight pressure of the fingers on the tweezer branches ensures a locking of the sliding ring which descends further from one or two mm; this allows an object to be held tight between the points without fear of it being released.
  • an elastic plate 11 fixed at one of its ends by a rivet 12 on an external face 7 at the rear 5 of a branch of tweezers provides the friction and the desired locking of the ring 9 in its rear position (dotted line).
  • This plate can be used as a retaining clip when you put the tweezers in a pocket (as for a pen); it also serves as a hook for hanging the tweezers from a wire; for example, to dry the object clamped between the tips.
  • a stamping 13 is prominent in the center of an outer face 7 at the rear 8 of a branch of tweezers.
  • each branch 2 is slightly apart towards the outside by stamping 14.
  • a stamping 15 is prominent in the center of each outer face 7 at the rear 5 of the tweezer branches.
  • a rivet 16 passing through the rear ends 5 of the branches and holding them side by side have heads which are slightly prominent relative to the external faces 7 of the branches 2 of the tweezers.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Gripping Jigs, Holding Jigs, And Positioning Jigs (AREA)
  • Surgical Instruments (AREA)
  • Control And Other Processes For Unpacking Of Materials (AREA)
  • Clamps And Clips (AREA)

Claims (2)

1. Pinzette mit zwei elastischen und an ihrem hinteren Ende einstückigen Branchen (2), dadurch gekennzeichnet, das die Branchen mindestens über einen Teil ihrer Länge gegensinnig konvex so ausgebildet sind, dass die Gesamtdicke in der Betätigungsebene der Branchen an einer von beiden Enden dieser Branchen distanzierten Stelle ein Maximum aufweist, und dadurch, dass ein die Branchen der Pinzette umgebender, automatisch blockierender Ring (9) so angeordnet ist, dass er über einen, zwischen den hinteren Enden (5) der Branchen gelegenen Teil, wo die Branchen einstückig sind, und der Stelle der maximalen Konvexität der Branchen, gleiten kann, wobei das Innere des Ringes so dimensioniert ist, dass, wenn die Pinzette mit den Spitzen nach unten geneigt wird, und durch Fingerdruck des Benutzers ein Objekt im konvexen Teil der Pizette gefasst wird, der Ring frei längs der Branchen so weit gleitet, bis er zu einer Stelle des konvexen Teiles kommt, wo die Reibung zwischen ihm und diesen Teil ihn klemmt, so dass dadurch die automatische Blockierung der Branchen in der Haltestellung mit erfasstem Objekt erreicht wird, und zwar auch dann, wenn der Fingerdruck nachlässt und die Pinzette mit den Spitzen nach oben gehalten wird, und wobei die Branchen automatisch freigegeben werden, wenn die Pinzette mit den Spitzen vertikal oder teilweise nach oben geneigt gehalten wird und mit den Fingern ein solch ausreichender Druck auf den konvexen Teil ausgeübt wird, dass der Ring nicht mehr von den Reibungskräften gehalten werden kann, durch sein Eigengewicht nach hinten fällt, die Pinzette das zwischen den Spitzen geklemmte Objekt freigibt, und der Ring bei seiner Verschiebung nach hinten entweder auf einen Anschlag stösst oder durch Reibung gehalten wird.
2. Pinzette nach Patentanspruch 1, dadurch gekennzeichnet, dass der Blockierring zwei gegenüberliegende Flächen aufweist, die so ausgebildet sind, dass sie je mit einer Aussenfläche einer der Branchen zusammenwirken und dass sie eine Schräge entsprechend der Konvexität der Branchen aufweisen.
EP86810083A 1985-02-20 1986-02-17 Pinzetten zum automatischen Spannen und Lösen Expired - Lifetime EP0192610B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT86810083T ATE57322T1 (de) 1985-02-20 1986-02-17 Pinzetten zum automatischen spannen und loesen.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH777/85A CH661679A5 (fr) 1985-02-20 1985-02-20 Brucelles a serrage et a desserrage automatiques.
CH777/85 1985-02-20

Publications (3)

Publication Number Publication Date
EP0192610A2 EP0192610A2 (de) 1986-08-27
EP0192610A3 EP0192610A3 (en) 1987-11-25
EP0192610B1 true EP0192610B1 (de) 1990-10-10

Family

ID=4194942

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86810083A Expired - Lifetime EP0192610B1 (de) 1985-02-20 1986-02-17 Pinzetten zum automatischen Spannen und Lösen

Country Status (8)

Country Link
US (1) US4802703A (de)
EP (1) EP0192610B1 (de)
JP (1) JPS61193654A (de)
AT (1) ATE57322T1 (de)
CA (1) CA1281919C (de)
CH (1) CH661679A5 (de)
DE (1) DE3674813D1 (de)
MX (1) MX167909B (de)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0629017Y2 (ja) * 1987-09-30 1994-08-10 タキロン株式会社 植物の誘引具
SE8803813D0 (sv) * 1988-10-25 1988-10-25 Ab Trama Distansanordning
WO2005108074A1 (en) * 2004-05-06 2005-11-17 Rocky Sherman Label removing tool
US20170055960A1 (en) * 2015-08-31 2017-03-02 Albert A. Kattine Blade Holder
US11298720B1 (en) 2020-04-03 2022-04-12 Patent & Investment Llc Apparatus for extrusive dispensing of work material having adaptively adjustable containment vessel retention

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1108299A (en) * 1914-04-24 1914-08-25 George E Wisman Jeweler's tongs.
US2876778A (en) * 1957-07-31 1959-03-10 Jr George Kees Surgical instruments with drop lock
US3399583A (en) * 1966-12-09 1968-09-03 Hall Gordon Lance Locking tweezers
US4303268A (en) * 1980-05-22 1981-12-01 Davidson Harvey D Method and apparatus for removing embedded ticks
US4389912A (en) * 1981-02-23 1983-06-28 Edsyn, Inc. Tweezers for removal of dual in-line pin (DIP) components
US4452106A (en) * 1982-01-22 1984-06-05 Tartaglia John A Tool having articulated opposing jaws

Also Published As

Publication number Publication date
CH661679A5 (fr) 1987-08-14
EP0192610A3 (en) 1987-11-25
DE3674813D1 (de) 1990-11-15
MX167909B (es) 1993-04-22
US4802703A (en) 1989-02-07
EP0192610A2 (de) 1986-08-27
ATE57322T1 (de) 1990-10-15
JPS61193654A (ja) 1986-08-28
CA1281919C (en) 1991-03-26

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