EP1401616B1 - Pince etau ou pince extensible - Google Patents

Pince etau ou pince extensible Download PDF

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Publication number
EP1401616B1
EP1401616B1 EP02754649A EP02754649A EP1401616B1 EP 1401616 B1 EP1401616 B1 EP 1401616B1 EP 02754649 A EP02754649 A EP 02754649A EP 02754649 A EP02754649 A EP 02754649A EP 1401616 B1 EP1401616 B1 EP 1401616B1
Authority
EP
European Patent Office
Prior art keywords
clamping
pliers
sections
expanding
spring element
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
EP02754649A
Other languages
German (de)
English (en)
Other versions
EP1401616A2 (fr
Inventor
Zbigniew Noniewicz
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.)
Wolfcraft GmbH
Original Assignee
Wolfcraft 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 Wolfcraft GmbH filed Critical Wolfcraft GmbH
Publication of EP1401616A2 publication Critical patent/EP1401616A2/fr
Application granted granted Critical
Publication of EP1401616B1 publication Critical patent/EP1401616B1/fr
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
    • B25B7/14—Locking means
    • 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

Definitions

  • the invention relates to a clamping or spreading forceps with two scissor joint-like interconnected gun arms, the one-end grip sections and other end clamping sections and can be latched in different clamping positions, wherein the clamping force is the result of an associated with the movement of the gun arms in the clamping position elastic deformation of at least one the pliers arms is.
  • a clamping or spreading forceps of this kind is from the DE-OS 199 33 033 known.
  • the Zwingen Sign reversing recovery deformation of the spring force, ie the restoring force of the gun arms is made.
  • the object of the invention is to improve the dosing of the clamping force on a generic clamping or spreading forceps.
  • a generic clamping or spreading forceps is achieved increased use value.
  • the tool is practically two, operatively adjacent to each other or superimposed Before centering, based on the resilience of the gun arms and that of the associated spring element.
  • the area supplying the clamping force increases, which benefits the desired meterability of the same.
  • the gripping sections can be further pulled against each other in the sense that an additional latching jump or more is or will become possible.
  • the constraining effect is practically optimized. Nevertheless, the high-grade tensioning position can be conveniently loosened again with the triggering device described in detail in the aforementioned precursor.
  • the spring element which is switched into the active section between the tensioning section and the grip section is actually arranged on the handle section side. It proves to be particularly advantageous in terms of stabilization that the pliers arms of rigid profile bodies, in particular of metal, are formed. It is further provided that one of the two gun arms is formed by two with the spring element against each other sprung levers. The keep the so assigned spring element protected between them, the profile structure can be used to optimally form a spring chamber. The two legs are pivoted about the forceps joint to increase the clamping force against each other.
  • An advantageous embodiment in this respect further consists in that one of the two levers is a two-armed output lever, which forms the clamping portion with a first lever arm and extends with its second lever arm between the two handle portions, of which one handle portion as the actuating arm of the other lever formed drive lever acts under compression of the interposed spring element on the second lever arm.
  • the free gusset space between the two gripping portions of the gun arms is used as an abutment in a structurally advantageous manner.
  • the loading is done by the arranged above the handle portion of a pliers limb. In certain cases, it may be advantageous to bias the spring element arranged between the two levers.
  • the invention proposes that the spring element is a compression spring and the tongs arm having a locking release lever is assigned.
  • the tongs arm carrying the snap-action release lever is supported on the other tong arm via a nose extending beyond the forceps joint. This results in an effective Sp Dretzbegrenzung.
  • The can be exploited for the attachment of the spring element, just in the sense of the above-indicated bias.
  • the invention proposes that the forceps jaw forming pliers sections are formed by disc packs. Over this clamping sections of different resistance and type can be put together. The cohesion of the slats is about anyway to be provided grip-side attachment points, eg.
  • the gripping portions of the gun arms themselves are formed by U-shaped stamped bent profiles, wherein at least one U-shaped opening can entrain the above-indicated spring chamber of the spring element.
  • One embodiment consists of a clamping or expanding pliers, in which the clamping sections have clamping jaws in that the U-shaped clamping jaws are folded from a punched sheet having a window in such a way that profiled facing each other Window edges form two parallel mutually occidental gripping edges, which are connected to each other at the ends via webs.
  • the illustrated clamping forceps 1 is constructed like a shear joint, but with the formation of a so-called push-through joint.
  • Joint-forming is a pin, continuously referred to as a forceps joint. 2
  • the pin of the forceps joint 2 passes through congruent eyes 3 in the crossing region of two gun arms 4, 5. They consist of rigid profile bodies made of metal. Profile bodies in the strictest sense, the forceps joint-distant areas of the forceps arms 4, 5, forming handle portions 6, 7. The take well two thirds to a half of the length of the forceps arms 4, 5 a. The longer profiling is performed on the gun arm 5.
  • the forceps joint 2 facing the end of the handle portions 6, 7 goes in, asked by the U-legs of the profile body, forked tabs 8, 9 on.
  • the U-web of the profile body is slightly arched flat.
  • the grip-forming zone of the gun arms 4, 5 has attached, retained handle shells 10 and 11, respectively.
  • the latter are reproduced in dash-dotted line style. They are roughened handy.
  • the gun arms 4, 5 consist of stamped bending profiles. It is used on steel sheet. attachment points for the handles 10,11 are taken equal to.
  • the pliers arms 4, 5 go medium or directly in clamping sections 12, 13 over.
  • the latter are slightly convex and consist of disk packs (see dash-dotted layer package in Figure 1, left clamping section 12).
  • Their free ends each carry a jaw 14 and 15, respectively, which are pivotally mounted.
  • Bearing axles 16 and 17 serve for this purpose.
  • the bearing eyes of the clamping jaws 14, 15 pass congruently through them. Regardless of the respective opening angle of the forceps muzzle M, there is always a grasping of an object O to be turret-supported.
  • the pliers arms 4, 5 can be locked in different clamping positions.
  • This consists of a latching ratchet device R.
  • The consists of a firmly connected to the gun arm 4 toothed segment 18. In whose sawtooth-like teeth 19 engages a latch arm 20 mounted on the other arm 5.
  • the hinge pin of the latch bears the reference numeral 21, the counter teeth 22nd
  • the toothing 19 extends in a circular arc section whose radius point is identical to the geometric axis of the forceps joint 2.
  • slightly undercut-like locking engaging counter teeth 22 can bring with the help of one of the latching device R associated latch release lever 23 with moderate forces out of engagement.
  • the bearings also on the gun arm 5. His hinge pin is designated 24.
  • the operating conditions are such that it first to a the peak pressure of the clamping handle taking loosening comes.
  • the clamping pliers 1 can be completely, ie open to maximum jaw width. This is done spring force assisted by a spreading spring 25.
  • The is supported on the forceps joint 2 and loaded with their acting on the handle sections 6, 7 legs the gun arms 4 and 5 accordingly.
  • the legs are assigned to the U-openings of the same.
  • the pliers arm 5 facing leg acts at the same time as the locking release lever 23 in the direction of its basic position loading spring.
  • the clamping force which grips the object O is the result of an elastic deformation of at least one of the pliers arms 4 and 5 accompanying the movement of the pliers arms 4, 5 into the clamping position.
  • the corresponding elasticity lies both with respect to the clamping sections 12, 13 and to some extent Dimensions of the handle portions 6 and 7, respectively, when equal here with respect to the handle portions 6,7 even greater resistance is opposed according to the given partial stiffness.
  • the tool is given a further source of clamping force in the form of the illustrated metal locking ring.
  • This is embodied in the assignment of a spring element F. This is switched on in the effective distance between the tensioning section and the grip section.
  • the spring element F grip portion side of the clamping pliers 1 is arranged.
  • the corresponding abutment for the spring element F is achieved in a particularly practical way by a two-part construction of the tong arm 5.
  • This pliers arm provides two levers, designated I and II.
  • the lever II protrudes into the already existing gusset space 26 in the region of the grip sections 6, 7.
  • the lever I is, albeit shortened component of the gun arm 5.
  • the second lever II is here the approach for the beyond the forceps joint 2 subsequent clamping portion 13 of the double-armed gun arm fifth
  • the two levers I, II are, pivoting about the forceps joint 2, under compression of the spring element F for clamping force increase against each other.
  • the spring element F is associated biased.
  • It is a helical compression spring. That can, as drawn, cylindrical or even wound barrel-shaped, and stands with its one terminal spring coil inside the trigger arm 23 carrying tong arm 5 and with its other terminal spring coil inside the also U-profiled lever II, consisting of sheet steel.
  • the lever designated II is two-armed. He acts as a drive lever, which is based with a first lever arm a the clamping portion 13 and with its second lever arm b extends between the two handle portions 6, 7, of which one handle portion 6 as an actuating arm of the drive lever formed by the other lever I. under Caribbeandrükken the intermediate spring element F acts on the second lever arm.
  • the snap-release lever 23 supporting, two-piece gun arm 5 is supported on a beyond the forceps joint 2 reaching nose 27 on the gun arm 5, so to himself, from.
  • the seated in the joint area on the lever II stop means bears the reference numeral 28.
  • the nose 27 of the lever I is also double-armed.
  • the shorter lever arm is the nose 27 forming.
  • Arm sheath is the parts I, II (5) and 4 overlapping forceps joint. 2
  • the gripping edges 32 are serrated in the central region. You can also unge leopardt aligned to a circular arc, so that cylindrical objects O without leaving marks can be easily grasped.
  • the gripping edges 32 are at the ends via webs 33 in connection. These are significantly shorter window edges 34 of the window 30.
  • the webs 33 provide with their planar outer sides a plane-parallel plane as shown in Figure 1 used clamping surface.
  • the clamping jaw 1 can be kept for the periods of disuse using the illustrated latching device R in space-saving storage position (closed mouth M).
  • the locking release lever 23 is fixed in its release position accordingly.
  • the tool has an opening limiter 37. It is realized as a pin.
  • the pin sits on the flap 9.
  • In its pivoting area is an arcuate slot formed on the flap 8.
  • the curved slot is concentric with the forceps joint 2.
  • the slot bottom is stop.
  • the orifice restrictor 37 may be paired, i. be provided on both broad sides of the clamping jaw 1 with appropriate placement or training of the lobes 8.9.
  • the clamping jaw 1 After gripping the object O, the clamping jaw 1 is closed. This is done powerfully by the mutual movement of the grip sections 6, 7. The respective clamping position can be latched (19, 22).
  • the clamping force is, on the one hand, the result of an elastic deformation of at least one of the two tong arms 4, 5 accompanying the movement of the tong arms 4, 5 into the tensioning position.
  • the restoring force of the same, in particular of the tension sections 12, 13, has a lasting effect.
  • the clamping force of the spring element F is added. The stronger the compression, the higher the return proportion from this supplementary force zone.
  • the clamping force from the spring element F acts via the second lever II via the clamping section 13 on the clamping jaw 15 against the on the other clamping jaw 14 supporting object O.
  • the release takes place with relatively small forces under actuation of the latching release lever 23. Then the tool reaches the relaxed position according to FIG. 4 with respect to the spring element.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Gripping Jigs, Holding Jigs, And Positioning Jigs (AREA)
  • Food-Manufacturing Devices (AREA)
  • Surgical Instruments (AREA)

Claims (13)

  1. Pince de serrage ou d'écartement (1) avec deux bras de pince (4, 5) reliés l'un à l'autre à la façon d'une articulation en ciseaux qui forment des tronçons de saisie (6, 7) à une extrémité et des tronçons de serrage (12, 13) à l'autre extrémité et peuvent être enclenchés dans différentes positions de serrage, la force de serrage étant le résultat d'une déformation élastique d'au moins un des deux bras de pince (4, 5) allant de pair avec le placement des bras de pince (4, 5) dans la position de serrage, caractérisée par un élément à ressort (F) affecté au bras de pince (5) qui est disposé dans la distance d'action entre le tronçon de serrage et le tronçon de saisie (7) de telle manière que, lorsque les deux tronçons de serrage (12, 13) sont maintenus fixés dans la position d'espacement (A) l'un par rapport à l'autre, les deux tronçons de saisie (6, 7) sont déplaçables l'un vers l'autre dans une autre position d'enclenchement (19, 22) afin d'augmenter la force de serrage par compression de l'élément à ressort (F), un des deux bras de pince (4, 5) étant formé par deux leviers (I, II) sollicités par ressort l'un par rapport à l'autre grâce à l'élément à ressort (F).
  2. Pince de serrage ou d'écartement selon la revendication 1, caractérisée en ce que l'élément à ressort (F) est disposé du côté du tronçon de saisie.
  3. Pince de serrage ou d'écartement selon une des revendications précédentes, caractérisée en ce que les tronçons de saisie (6, 7) et/ou les tronçons de serrage (12, 13) des bras de pince (4, 5) sont formés par des corps profilés rigides en flexion, en particulier en métal.
  4. Pince de serrage ou d'écartement selon une des revendications précédentes, caractérisée en ce que les deux leviers (I, II) peuvent pivoter l'un par rapport à l'autre autour de l'articulation de la pince (2) pour augmenter la force de serrage.
  5. Pince de serrage ou d'écartement selon une des revendications précédentes, caractérisée en ce que l'un (II) des deux leviers (I, II) est un levier mené à deux bras, qui forme le tronçon de serrage (13) avec un premier bras de levier (a) et s'étend avec un deuxième bras de levier (b) entre les deux tronçons de saisie (6, 7), dont un tronçon de saisie (6) agit comme bras d'actionnement du levier d'entraînement formé par l'autre levier (I) par compression de l'élément à ressort (F) intermédiaire sur le deuxième bras de levier (b).
  6. Pince de serrage ou d'écartement selon une des revendications précédentes, caractérisée en ce que l'élément à ressort (F) est disposé de façon précontrainte entre les deux leviers (I, II).
  7. Pince de serrage ou d'écartement selon une des revendications précédentes, caractérisée en ce que l'élément à ressort (F) est un ressort de pression et est affecté au bras de pince (5) qui comporte un levier de désencliquetage (23).
  8. Pince de serrage ou d'écartement selon la revendication 7, caractérisée en ce que le bras de pince (5) qui porte le levier de désencliquetage (23) est soutenu sur le bras de pince (5) par l'intermédiaire d'un ergot (27) qui s'étend au-delà de l'articulation de la pince (2).
  9. Pince de serrage ou d'écartement selon une des revendications précédentes, caractérisée en ce que les tronçons de serrage (12, 13) qui forment le bec de pince (M) sont formés par des paquets de lamelles.
  10. Pince de serrage ou d'écartement selon une des revendications précédentes, caractérisée en ce que les tronçons de saisie (6, 7) des bras de pince (4, 5) sont formés par des profilés flexibles à section transversale en forme de U obtenus par estampage.
  11. Pince de serrage ou d'écartement selon une des revendications précédentes, les tronçons de serrage (12, 13) comportant des mâchoires de serrage (14, 15), caractérisée en ce que les mâchoires de serrage (14, 15) en forme de U sont obtenues par pliage à partir d'une ébauche d'estampage (St) comportant une fenêtre (30) de manière que les bords de fenêtre profilés (31) dirigés les uns vers les autres forment deux flancs de saisie (32) qui s'étendent parallèlement l'un par rapport à l'autre et sont reliés à leur extrémité par des nervures (33).
  12. Pince de serrage ou d'écartement selon une des revendications 7 ou 8, caractérisée en ce que le levier de désencliquetage (23) est fixé dans sa position de base.
  13. Pince de serrage ou d'écartement selon la revendication 12, caractérisée en ce que la fixation est assurée au moyen d'un coulisseau (sch) affecté au tronçon de saisie (7), qui peut être introduit dans le trajet de déplacement du levier de désencliquetage (23).
EP02754649A 2001-06-16 2002-06-10 Pince etau ou pince extensible Expired - Lifetime EP1401616B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10129130A DE10129130A1 (de) 2001-06-16 2001-06-16 Klemm- oder Spreizzange
DE10129130 2001-06-16
PCT/EP2002/006331 WO2002102553A2 (fr) 2001-06-16 2002-06-10 Pince etau ou pince extensible

Publications (2)

Publication Number Publication Date
EP1401616A2 EP1401616A2 (fr) 2004-03-31
EP1401616B1 true EP1401616B1 (fr) 2007-07-18

Family

ID=7688446

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02754649A Expired - Lifetime EP1401616B1 (fr) 2001-06-16 2002-06-10 Pince etau ou pince extensible

Country Status (7)

Country Link
US (1) US6973859B2 (fr)
EP (1) EP1401616B1 (fr)
AT (1) ATE367242T1 (fr)
AU (1) AU2002320839A1 (fr)
CA (1) CA2455262C (fr)
DE (2) DE10129130A1 (fr)
WO (1) WO2002102553A2 (fr)

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FR2856316B1 (fr) * 2003-06-17 2005-09-23 Vmi Systeme de maintien elastique d'un recipient en regard d'une tete de melange d'un melangeur
WO2007021846A2 (fr) 2005-08-12 2007-02-22 Reid Industries Dispositif de prise à mécanisme de verrouillage et de déclenchement d'action de levée
US7814817B1 (en) 2007-01-08 2010-10-19 Swanstrom Tools Usa Inc. Manual setting and forming tools
US20080251402A1 (en) * 2007-04-12 2008-10-16 Sophia Chiu Wrench Base Structure
US7900539B2 (en) * 2007-06-08 2011-03-08 Meissner Joseph E Chain tension tool
CA2725386C (fr) 2008-04-11 2020-10-27 Reid Industries Dispositif de ramassage avec tube telescopique
US8201515B1 (en) 2009-03-10 2012-06-19 Winter Lynn A Anchor for marker buoy, waterfowl decoy and the like
US8281637B2 (en) * 2009-08-20 2012-10-09 Swanstrom Tools Usa Inc. Forming tools and associated methods
US8286954B2 (en) * 2010-03-22 2012-10-16 Bo Ren Zheng Locking pliers with one or two slide bars each secured to a stationary jaw carrier
US8137379B2 (en) * 2010-05-03 2012-03-20 Josiah Labash Pressure-applying device
US8840264B2 (en) 2010-08-03 2014-09-23 Ibt Holdings, Llc Portable work light clamp
RU2479411C1 (ru) * 2011-08-18 2013-04-20 Николай Евгеньевич Староверов Ручной зажимающий инструмент (варианты)
USD694482S1 (en) 2012-12-11 2013-11-26 Unger Marketing International, Llc Cleaning tool
US20150158151A1 (en) * 2013-11-01 2015-06-11 Curtis Brown Ratchet adjustable locking pliers
WO2015073787A1 (fr) * 2013-11-15 2015-05-21 S. C. Johnson & Son, Inc. Appareil pour retenir un outil de nettoyage
US9744653B2 (en) * 2015-01-02 2017-08-29 Lee Edward Vaale Apparatus having an adjustable locking plier body and a split jaw
US11541514B2 (en) 2016-03-23 2023-01-03 Milwaukee Electric Tool Corporation Locking pliers
TWI628052B (zh) * 2017-08-28 2018-07-01 沈美紅 Bundle ring pliers
WO2019051491A1 (fr) 2017-09-11 2019-03-14 Milwaukee Electric Tool Corporation Pinces de verrouillage à section de mâchoire mobile augmentant le couple
CN108078610A (zh) * 2018-01-05 2018-05-29 嘉善精田精密机械制造有限公司 一种手术钳
USD910395S1 (en) 2019-03-11 2021-02-16 Milwaukee Electric Tool Corporation Pliers
USD950336S1 (en) 2019-09-27 2022-05-03 Js Products, Inc. Electrician's combination wire-working pliers
USD968182S1 (en) 2020-02-05 2022-11-01 Js Products, Inc. Multi-functional electrician pliers

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Publication number Priority date Publication date Assignee Title
DE19933033B4 (de) * 1999-02-11 2019-03-21 Wolfcraft Gmbh Klemm- oder Spreizzange
SE460745B (sv) * 1988-02-29 1989-11-13 Fast Industriprodukter Hb Klaemma
US6116124A (en) * 1997-08-12 2000-09-12 Great Neck Saw Manufacturers, Inc. Adjustable pliers
US5842371A (en) * 1998-02-12 1998-12-01 Liaw; Gwo-Jiang Wire crimper having adjustment mechanism for adjusting pitch of the jaw mouth
EP1236543B1 (fr) 1999-02-11 2005-04-13 wolfcraft GmbH Pince étau ou pince extensible
USD491433S1 (en) * 2001-06-16 2004-06-15 Wolfcraft Gmbh Clamping pliers
US6564703B1 (en) * 2002-05-16 2003-05-20 Kun-Meng Lin Structure of clip

Also Published As

Publication number Publication date
CA2455262C (fr) 2010-05-11
WO2002102553A2 (fr) 2002-12-27
CA2455262A1 (fr) 2002-12-27
DE50210514D1 (de) 2007-08-30
ATE367242T1 (de) 2007-08-15
DE10129130A1 (de) 2003-01-09
AU2002320839A1 (en) 2003-01-02
WO2002102553A3 (fr) 2003-09-18
US20040255730A1 (en) 2004-12-23
EP1401616A2 (fr) 2004-03-31
US6973859B2 (en) 2005-12-13

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