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EP0861707A2 - Pince - Google Patents

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Publication number
EP0861707A2
EP0861707A2 EP98103075A EP98103075A EP0861707A2 EP 0861707 A2 EP0861707 A2 EP 0861707A2 EP 98103075 A EP98103075 A EP 98103075A EP 98103075 A EP98103075 A EP 98103075A EP 0861707 A2 EP0861707 A2 EP 0861707A2
Authority
EP
European Patent Office
Prior art keywords
pliers
gripping
leading
leg
joint
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.)
Granted
Application number
EP98103075A
Other languages
German (de)
English (en)
Other versions
EP0861707A3 (fr
EP0861707B1 (fr
Inventor
Stefan Pfab
Alfons Tulay
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.)
HARRY P WILL WERKZEUGFABRIK GmbH and Co KG
Original Assignee
HARRY P WILL WERKZEUGFABRIK 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 HARRY P WILL WERKZEUGFABRIK GmbH and Co KG filed Critical HARRY P WILL WERKZEUGFABRIK GmbH and Co KG
Publication of EP0861707A2 publication Critical patent/EP0861707A2/fr
Publication of EP0861707A3 publication Critical patent/EP0861707A3/fr
Application granted granted Critical
Publication of EP0861707B1 publication Critical patent/EP0861707B1/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
    • B25B7/02—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
    • B25B7/06—Joints
    • B25B7/10—Joints with adjustable fulcrum

Definitions

  • the present invention relates to a gripper according to the preamble of Claim 1.
  • Gripping pliers of this type which for certain applications can also be used as water pumps or Armature pliers are generally known to have two articulated connections Pliers legs that grip in the lower area. In the top or Each leg has an angled, preferably serrated, head region Gripping jaw. To adapt them to something that is tangible or exciting Workpiece, the legs are longitudinally and angularly movable against each other.
  • the arrangement and design of the joint is important. Relatively easy slide and grooved sliding joints are to be realized; but if hard High shear forces and moments occur, this can lead to wear, to rattle and even to break the often not very strong joint pin to lead.
  • Push-through grippers according to DE 90 03 285 U1 have an adjusting roller, the internal thread with a rear Teeth of the guided leg screws, so that the workpiece has a stepless Setting is possible. This usually also requires two-hand operation ahead, for which sufficient space must be available.
  • a solid construction with low wear is also sought Joint that enables comfortable use with increased handling safety.
  • the invention provides according the characterizing part of claim 1 that the sliding joint is a disc has, which is rotatably mounted in a head region of the guided pliers leg is, in turn, stores the locking pin and with guide surfaces on the leading Pliers legs can be moved along in the parallel recess.
  • An advantageous guide support of the guided pliers leg is achieved one according to claim 3, by parallel, projecting transversely from the joint disc Guide surfaces rest on sliding surfaces of the leading pliers leg.
  • The is further supported according to claim 4 in that the guide surfaces of the The leading pliers leg out of the parallel recess reach around.
  • a very convenient usability is achieved in accordance with claim 6, if the locking pin can be locked in a selectable position on the locking steps by the Handles are opened, the guided pliers leg against the gripper jaw closing direction is moved and the handles are closed.
  • claim 7 is a parallel adjustment of the gripper jaws from a larger or maximum distance possible with the legs closed by using the guided pliers legs under the contact of a stop body with the races provided sliding surfaces without pivoting the handles in the closing direction is movable along.
  • the gripping size is therefore only adjusted on the pliers legs, without manual locking adjustment in the joint area required would. For example, ten locking levels are at a maximum gripping distance of 50 mm can be easily realized.
  • Claim 11 provides that the locking pin is spring-loaded and one between Angle stops of the joint disc limited swiveling, guided by the Pliers leg has detectable driver. This is a remarkable one Advantage over conventional gripping pliers with rigid locking bolts, which Opening and closing the pliers could complicate.
  • the suspension can be loud Claim 12 advantageously be designed so that one on or in the joint disc spring held the locking pin in the direction of the driver loaded on a lower angle stop surface of the joint disc. Specifically can attack a compression spring according to claim 13, preferably arranged together with her in a recess of the joint disc Radial lever.
  • the simple manufacture and assembly is also claimed 14 supported by the fact that the driver e.g. pen-shaped, with the Locking pin is radially connected pressure piece and that two angular stops of Surfaces are formed that have a recess on a flat step of the joint disk limit.
  • yet another embodiment of the invention consists in that the guided pliers leg next to the joint disc a stop body with a nose assigned to the driver, pressure surface or the like.
  • the stop body according to claim 17 can be closed Grips on the back sliding surfaces of the leading pliers leg Have surface that contributes to leadership on the one hand, but as a effective pinch protection.
  • Another security measure provides for claim 18, according to which the guided Pliers legs to relieve the joint when opening a safety stop has, especially on the side of the lower jaw and opposite one Stop body.
  • the leading pliers leg comes when opening the Gripping pliers on the safety stop to the system, so that it acts Absorbs forces or moments and the joint disc does not support it can be tilted.
  • the gripping tongs shown in FIGS. 1 and 2 are generally designated 10. She has a leading pliers leg F and a guided pliers leg G, which in a head region 18 pivotally connected to one another via a sliding joint 20 are.
  • the pliers legs F, G run out at the lower end in handles 12 and 13; the upper ends are designed as gripping jaws 14, 15.
  • the leading pliers leg F has a parallel recess 42 towards the head region 18 through which the Head area of the guided pliers leg G is inserted.
  • the sliding joint 20 has a joint disk 22 of relatively large size Diameter D, which is rotatable about an axis C in the head area of the guided Pliers legs stored and with guide surfaces 23, 24 on the leading Pliers leg F is movable along in the parallel recess 42.
  • the diameter D of the joint disc is larger than the width b of the leading pliers leg F in the head region 18.
  • the guide surfaces stand from the joint disk 22 23, 24 in parallel so that the leading pliers leg F from the Grip out parallel recess 42 and guide on its sliding surfaces 50, 54.
  • the rear sliding surfaces 50 are provided with locking steps 52 into which Locking pin 30 can engage, which in the joint plate 22 parallel to the axis C is mounted and has 32 flats 34 at its ends (FIGS. 3 and 6).
  • the flats 34 merge into a corner part 35 at the lower end Shape of that of the back sliding surfaces 50 of the leading pliers leg F is the same or at least similar.
  • FIGS. 3 to 6 Details of the structure are shown in FIGS. 3 to 6. You can see that the joint disc 22 has an asymmetrical recess 26 in the middle to one with the locking pin 30 fixed radial lever 36 and a compression spring 38 record. This loads the radial lever 36 and thus the locking pin 30, which is slidably mounted in a bearing 28 of the flexible disc 22 and after outside has a driver in the form of a pressure piece 40, which when closed Pliers legs F, G comes to rest on a lower angle stop 47. This is on a flat step 62 as the lower limit of a recess 46 provided, which is limited at the top by a further angle stop 48.
  • the stop body 56 also has a sliding surface 58, which at the pinch protection closed pliers legs F, G is used (Fig. 3 and 6). You prevented by System on the rear sliding surfaces 50 of the leading pliers leg F a finger clamp. This safety is also effective when using the pliers large gripping dimension between the gripping jaws 14, 15 is closed.
  • the sliding surface 58 of the stop body 56 enables and supports as well as the elastic stored locking bolt 30 a movement in the closing direction S, for what only the force of the compression spring 38 is to be overcome.
  • the locking pin leads to this Upward movement of the guided pliers leg G from level to level one small swivel until it comes close to the gripping dimension of a (not drawn) workpiece the last possible detent step 52 has been reached.
  • the guided pliers leg G also has the gripping jaw 14 facing Part of the head area 18 has a securing stop 64, which relieves the joint serves in the fully open pliers position (Fig. 6). Then he comes Securing stop 64 on the front sliding surface 54 of the leading pliers leg F to the system so that a further spread is not possible.
  • a gripping toothing provided on the gripping jaws 14, 15 16 may be designed differently from the illustrations. They also have to Stop body 56, 64 do not necessarily have the shapes shown.
  • a gripping pliers 10 according to the invention a plug Sliding joint for connecting two pliers legs in such a way that gripping jaws 14, 15 face each other at an adjustable distance.
  • a leading pliers leg F takes a guided pliers leg in a parallel recess 44 G slidably on.
  • a disc 22 of the slide joint 20 is in one Head region 18 of the guided pliers leg G rotates and in turn supports a locking pin 30 offset at the end; it is on with guide surfaces 23, 24 along the leading pliers leg F in the parallel recess 42.
  • the diameter D of the joint disc 22 is larger than the width b of the leading one Pliers leg F, which has locking steps 52 and sliding surfaces 50 on the back which flats 34 semi-cylindrical locking pin ends 32 non-positively issue.
  • the spring-loaded locking pin 30 is eccentric in the flexible disk 22 so that its axis of rotation P in the through the rear sliding surfaces 50 defined plane, and it has a between angular stops 47, 48 of the joint disc 22 limited pivotable by the guided pliers legs G detectable driver 40, e.g.
  • the guided pliers leg G has a stop body in addition to the joint disk 22 56 with pressure surfaces 58, 60 and a safety stop 64.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Gripping Jigs, Holding Jigs, And Positioning Jigs (AREA)
  • Harvester Elements (AREA)
  • Hand Tools For Fitting Together And Separating, Or Other Hand Tools (AREA)
EP98103075A 1997-02-28 1998-02-21 Pince Expired - Lifetime EP0861707B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE29703681U DE29703681U1 (de) 1997-02-28 1997-02-28 Greifzange
DE29703681U 1997-02-28

Publications (3)

Publication Number Publication Date
EP0861707A2 true EP0861707A2 (fr) 1998-09-02
EP0861707A3 EP0861707A3 (fr) 1999-07-14
EP0861707B1 EP0861707B1 (fr) 2002-05-15

Family

ID=8036758

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98103075A Expired - Lifetime EP0861707B1 (fr) 1997-02-28 1998-02-21 Pince

Country Status (3)

Country Link
EP (1) EP0861707B1 (fr)
AT (1) ATE217562T1 (fr)
DE (2) DE29703681U1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1052066A3 (fr) * 1999-05-03 2000-11-29 Super-Ego Tools S.A. Pince adaptable

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202013101985U1 (de) * 2013-05-07 2013-05-17 Hazet-Werk Hermann Zerver Gmbh & Co. Kg Greifzange
US11541514B2 (en) 2016-03-23 2023-01-03 Milwaukee Electric Tool Corporation Locking pliers
WO2019051491A1 (fr) 2017-09-11 2019-03-14 Milwaukee Electric Tool Corporation Pinces de verrouillage à section de mâchoire mobile augmentant le couple
USD910395S1 (en) 2019-03-11 2021-02-16 Milwaukee Electric Tool Corporation Pliers

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB191000144A (en) * 1910-01-03 1910-11-17 Wilhelm Kessing An Improved Pipe Wrench or Spanner.
FR2052020A5 (fr) * 1969-07-11 1971-04-09 Stephanoises Forges
DE3303368A1 (de) * 1983-02-02 1984-08-02 Knipex-Werk C. Gustav Putsch, 5600 Wuppertal Wasserpumpenzange
DE9003285U1 (de) * 1990-03-21 1990-06-21 Gedore-Werkzeugfabrik Otto Dowidat, 5630 Remscheid Wasserpumpenzange

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1052066A3 (fr) * 1999-05-03 2000-11-29 Super-Ego Tools S.A. Pince adaptable

Also Published As

Publication number Publication date
DE29703681U1 (de) 1997-06-19
EP0861707A3 (fr) 1999-07-14
ATE217562T1 (de) 2002-06-15
EP0861707B1 (fr) 2002-05-15
DE59804109D1 (de) 2002-06-20

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