EP1280632B1 - Zange mit kraftverstärkung - Google Patents

Zange mit kraftverstärkung Download PDF

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Publication number
EP1280632B1
EP1280632B1 EP01934088A EP01934088A EP1280632B1 EP 1280632 B1 EP1280632 B1 EP 1280632B1 EP 01934088 A EP01934088 A EP 01934088A EP 01934088 A EP01934088 A EP 01934088A EP 1280632 B1 EP1280632 B1 EP 1280632B1
Authority
EP
European Patent Office
Prior art keywords
arm
connecting rod
pliers
retaining
mobile
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
EP01934088A
Other languages
English (en)
French (fr)
Other versions
EP1280632A1 (de
Inventor
Eric Chauffeteau
Cyriaque Fouqueray
Didier Goussault
Richard Chene
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.)
Caillau SAS
Original Assignee
Etablissements Caillau SAS
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 Etablissements Caillau SAS filed Critical Etablissements Caillau SAS
Publication of EP1280632A1 publication Critical patent/EP1280632A1/de
Application granted granted Critical
Publication of EP1280632B1 publication Critical patent/EP1280632B1/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
    • 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
    • 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
    • B25B25/00—Implements for fastening, connecting or tensioning of wire or strip
    • B25B25/005—Implements for fastening, connecting or tensioning of wire or strip for applying wire clasps to hose couplings

Definitions

  • the present invention relates to a geared gripper comprising a fixed arm whose end portion is adapted to carry a fixed jaw, a movable actuating arm, a movable support arm, articulated relative to the fixed arm and adapted to carry a jaw mobile, and reduction means disposed between the fixed arm and the actuating arm.
  • the denomination "fixed arm” is used for the sake of simplification. It should be understood that this notion is relative, the forceps being intended to be manipulated manually.
  • the document FR 2,736,572 shows a vise clamp in which the movable support arm is articulated on the fixed arm, while the movable actuating arm is connected to this fixed arm by a connecting rod and is articulated on the movable support arm. Since it is a vise clamp, one of the pivot points of the rod is adjustable to determine the spacing between the jaws in the clamped position.
  • This toggle system allows a correct gearing for certain applications. However, it is desirable to be able to further increase the reduction, to increase the clamping capacity of the clamp, while maintaining an opening amplitude of the movable actuating arm relative to the fixed arm for manipulating the clamp with one hand.
  • the document DE 1,300,478 shows a clamp of the aforementioned type, wherein the movable actuating arm is articulated on the fixed arm, and wherein the reduction means comprise a linkage system having first and second connecting rods connected by a connecting pin, the first connecting rod being articulated on the fixed arm in a first connecting rod axis and the second connecting rod being articulated on the movable support arm in a second connecting rod axis.
  • This clamp comprises means for mechanical connection and transmission of movement between the movable actuating arm and the connecting rod system.
  • the first link is formed by a portion of a plate which terminates in a hook capable of cooperating with a pin carried by the movable actuating arm for securing said first link with this arm.
  • the first link is fixed relative to the mobile actuating arm, which requires that the axis of articulation of this arm on the fixed arm is coincident with the axis of articulation of the first link on the fixed arm.
  • the pin To allow the complete opening of the clamp, the pin must be moved to disengage the hook, allow it to occupy its open position, and thus release the first link of the movable actuating arm.
  • the plate that carries the first connecting rod must be moved to allow the pin to retain the hook again, while the user holds the clamp by its actuating arms.
  • the present invention aims to provide an improved clamp, in particular a clamp for tightening a clamp, having means for mechanical connection and transmission of movement between the movable actuating arm and the connecting rod system that are simple and reliable.
  • cam means are in permanent contact, without the user having to manipulate them to put them in a position to cooperate.
  • these cam means can easily be shaped to adapt the gear ratio to the clamping curve (clamping force / stroke) desired.
  • the mechanical linkage and motion transmission means comprise a cam track integral with one of the elements constituted by the mobile actuating arm and the connecting rod system, a cam follower of the other of said elements and means for retaining the roller on this track.
  • the cam follower and cam follower system is technically simple to perform and perfectly reliable to provide the mechanical connection between the movable actuating arm and the linkage system and to transmit the movement for clamping the multiplier clamp.
  • the cam track is formed on an edge of a window in which the cam follower is retained. The shape of the cam track makes it possible to adapt the clamping curve to the intended application.
  • the mechanical connection by the cam means according to the invention makes it possible to perfectly control the kinematics of the movement of the mobile actuating arm without making it compulsory for the axis of articulation of this arm relative to the fixed arm to coincide with the axis of articulation of the first link on the fixed arm, as was the case in DE 1,300,478 This made it necessary to accommodate the two connecting rods in the extremely small space between this axis and the mobile support arm and consequently required the selection of shorter rods, which limited the reduction.
  • the axis of articulation of the actuating arm movable relative to the fixed arm and the axis of articulation of the first link relative to the fixed arm are distinct.
  • the axis of articulation of the actuating arm movable relative to the fixed arm is arranged, on the fixed arm, between the axis of articulation of the first link relative to the fixed arm and the end of this fixed arm which carries the fixed jaw.
  • the two connecting rods In the open configuration of the clamp, the two connecting rods form a closed angle relative to each other, so that the first and second connecting rod axes are relatively close. In contrast, when the clamp is tightened, the angle formed by the two connecting rods about their connecting axis has opened, they are substantially aligned, so that the distance between the first and second connecting rods is maximum.
  • the gear ratio of the gripper is a function of the difference between the distance between the two connecting rods in the open configuration of the clamp and the distance between the same axes when the clamp is clamped.
  • this ratio is important thanks to the presence of two rods articulated relative to each other.
  • the spacing between the movable actuating arm and the fixed arm when the clamp is open is limited by the mechanical connection means between the actuating arm and the connecting rod system.
  • the cam means which form these mechanical connection means are made such that, in the open position of the clamp, the angle formed by the two connecting rods is relatively closed, while it is as open as possible in the position tightening the clamp.
  • the clamp comprises means for retaining the movement of the movable actuating arm in the direction of the opening of the clamp and thus to define an intermediate opening configuration in which the clamp is opened according to an opening amplitude less than its maximum opening amplitude.
  • the clamp can be adapted to clamp a first category of objects whose spacing of the parts to be clamped corresponds to the space between the jaws when the clamp is in its maximum open position, and to that of a second category of objects whose spacing of the parts to be clamped has a smaller dimension, corresponding to the spacing between the jaws in this intermediate opening position.
  • the clamp advantageously comprises a retaining member adapted to occupy a retaining position in which it retains the movement of the movable actuating arm and a release position in which it releases this movement.
  • the clamp according to the invention comprises a fixed arm 10, an end portion 10A carries a jaw called said fixed jaw 12 and an opposite end portion 10B is intended to be manipulated for clamping the clamp.
  • the clamp also comprises a movable actuating arm 14, one end 14A of which is articulated on the fixed arm 10 by a hinge pin 16 and whose opposite end 14B is intended, with the end 10B of the fixed arm 10, to be manipulated to open or tighten the clamp.
  • the latter also comprises a movable support arm 18 whose end 18A carries the movable jaw 20. In its median region, this support arm 18 is also articulated on the fixed arm 10. In the advantageous example shown, the axis articulation of the arm of the movable support relative to the fixed arm coincides with the hinge axis 16 above.
  • the clamp comprises resilient return means to its open configuration which, in the example shown, is constituted by a compression spring 22 disposed between the fixed arm and the movable support arm, in the end regions 10A and 18A of these latter.
  • An attachment hook 24 is adapted to cooperate with a hooking stud 26 to maintain the clamp in its tight configuration.
  • the reduction means of the clamp comprise a connecting rod system having a first connecting rod 28 which, at its first end is articulated on the fixed arm 10 in a hinge axis 28A. They also comprise a second connecting rod 30 which, at its first end, is articulated on the movable support arm in a hinge axis 30A. This axis is in the end region 18B of the movable support arm opposite its end 18A.
  • the two rods 28 and 30 are articulated with respect to one another at their respective second ends, by a connecting pin 32.
  • the hinge pin 16 is disposed on the fixed arm 10 between the hinge axis 28A of the first rod 28 and the jaw 12 carried by the fixed arm. This arrangement is advantageous, particularly from the point of view of the amplitude of the reduction since the two rods can be relatively long.
  • the movement of the movable actuating arm 14 is transmitted to the support arm 18 via the connecting rod system.
  • the actuating arm 14 is mechanically linked to the connecting rod system to limit its movement.
  • these mechanical connection and motion transmission means are cam means. They comprise a cam track secured to one of the elements constituted by the movable actuating arm 14 and by the connecting rod system (in particular by the first connecting rod), as well as a follower member (for example a cam follower ) which is integral with the other of these elements and which cooperates with the cam track during opening and closing movements of the clamp.
  • cam means comprise a cam track secured to one of the elements constituted by the movable actuating arm 14 and by the connecting rod system (in particular by the first connecting rod), as well as a follower member (for example a cam follower ) which is integral with the other of these elements and which cooperates with the cam track during opening and closing movements of the clamp.
  • cam window 34 made in the actuating arm 14 and a cam follower 36 belonging to the connecting rod system.
  • cam follower is used for convenience because the part 36 slides on the edge of the window 34.
  • this piece 36 is not necessarily rotatable about its geometric axis 36A.
  • cam means are arranged to move the connecting rods by bringing their connecting axis 32 closer to the hinge pin 16 when the movable actuating arm is brought closer to the fixed arm 10.
  • the roller The cam is secured to the first link 28.
  • it could be located in the region of the link axis 32, the geometric axis of the roller being coincident with this axis 32.
  • the roller is located in an area of the first connecting rod which extends between the articulation axis 16 of the arm 14 relative to the arm 10 and a line connecting the first connecting rod axis 28A, connecting pin 32 and the second connecting rod axis 30A.
  • the axis 36A of the cam follower forms, with the axes 32 and 28A, the vertices of a triangle, the vertex corresponding to the axis 36A being located on the axis side 16.
  • the rod 28 comprises a main arm 27A which forms the base of this triangle, joining the axes 32 and 28A, and two arms 27B and 27C which form the other two sides of the triangle.
  • the three points defined by the axes 30A, 32 and 28A thus form a deformable triangle whose apex angle 32 is closed, for example of the order of 90 ° to 120 °, in the open position of the clamp, while this angle widely open clamping position of the clamp as shown in the figure 2 . It is then for example of the order of 160 ° to 180 °.
  • the fixed arm 10 of the clamp is made from a sheet metal plate or the like.
  • the movable actuating arm 14 has, between its end 14A and a median region 14C beyond which the handling zone extends, two parallel plates 15A and 15B, respectively. At the end 14A, these two sheets extend on either side of the fixed arm 10. Between this end and the area 14C, they form two identical cheeks. Thus, a cam window 34 is made in each of these two cheeks.
  • One of the connecting rods, for example the second connecting rod 30, is formed by a single rod while the other connecting rod, for example the first rod 28, is formed by two elementary rods in the form of parallel plates 29A and 29B, respectively.
  • the connecting rod 30 is disposed between these two parallel rods.
  • they themselves are arranged on either side of the fixed arm 10.
  • several spacer rods may be provided to maintain the spacing between the two elementary connecting rods 29A and 29B.
  • the sheets 15A and 15B have openings other than the cam windows. It is also for this reason that the central part of the triangle whose first link forms the base is hollowed out.
  • the roller 36 is itself formed by two elementary rollers respectively 37A and 37B, protruding respectively on the sides the clamp from the elementary connecting rods 29A and 29B, to cooperate with each of the two elementary cam windows.
  • the window 34 has an edge 34A, located on the opposite side of the fixed arm 10, with which the roller cooperates when the arm 14 is moved towards the arm 10 to clamp the clamp.
  • the opposite edge 34B of the window 34 which is adjacent to the arm 10, cooperates with the roller 36 to retain the movable arm 18 with respect to a spacing relative to the fixed arm 10.
  • the figure 1 shows the gripper in its maximum aperture configuration, and it is seen that the roller 36 cooperates with the part of the cam track which is farthest from the axis 16.
  • the clamp has an intermediate opening configuration. This configuration is defined by retaining means which, when active, prevent further opening of the actuating arm.
  • a retaining member 40 capable of occupying a retaining position in which it retains the movement of the movable actuating arm and a release position in which it releases this movement.
  • this retaining member is constituted by a hook or the like disposed between the movable actuating arm and the fixed arm. It is advantageous to make this retaining member in the form of a member capable of being actuated between these two positions by the hand of the user who holds the clamp normally by the handling portions of the arms 10 and 14. Thus, this member is preferably constituted by a lever capable of being actuated by the thumb of the user while the latter holds the clamp in hand.
  • lever 40 which is pivotally mounted on the fixed arm 10, about a pivot axis 42.
  • This lever comprises a retaining end 40A and a handling end 40B , arranged on either side of the axis 42. It is understood that when the user holds the clamp by placing the fixed arm 10 on the side of the palm of the hand, the lever can be easily operated by the thumb.
  • the retaining member is advantageously permanently biased towards its retaining position by elastic return means.
  • the figure 5 shows the lever 40 in its retaining position, in which it is recalled by a spring 44 wound around the axis of the lever and a first end bears on the fixed arm 10, while the other cooperates with the lever having a tendency to tilt constantly to its retaining position.
  • the retaining portion 40A of the retaining lever 40 extends between the arms 10 and 18. It cooperates with a retaining surface 46 which belongs to the connecting rod system and which is also between these arms.
  • the upper face (the closest to the axis 16) of the retaining portion 40A of the lever 40 forms a first locking face which cooperates with the second locking face formed by the facet 46 of the link 28.
  • This facet is for example formed in the region of the axis 32. It is understood that when these two locking surfaces cooperate with each other, they prevent the roller 36 from descending into the cam window 34 away from the axis 16. They therefore limit the opening of the arm 18. To release the opening of this arm, simply press the actuating portion 40B of the lever, so as to allow the locking face 46 to escape the 40A head of the lever, thus allowing the roller to go down in the cam window.
  • the cam surface 34A is made such that this descent is automatic as soon as the lever is actuated.
  • the shape of the oblong defined by the edge of the window 34 is determined in such a way as to properly distribute the closing force of the clamp over the entire displacement path of the arm 18 towards the arm 10.
  • the retaining means comprise an adjustable stop 140, which is integral with the movable actuating arm 14 being movable between a retaining position in which it is adapted to cooperate in abutment with the movable support arm to limit the movement of the latter in the direction of the opening of the clamp and a release position in which it releases this movement.
  • the sheet 15B of the arm 14 has a slot 141 in which the stop 140 slides.
  • the latter comprises a handling head 142 located on the outside of the sheet 15B, a rod 144 which passes into the slot and a foot 146 located on the inside of the sheet 15B.
  • This foot has a reduced thickness for housing, when closing the clamp, in a recess 11 of the arm 10 which locally removes the arm of the sheet 15B.
  • the arm 18 has, in the region of the axis 16, a recess 19B which locally removes it from the sheet 15B.
  • the release position of the stop 140 is the one in which it is in the upper region of the slot 141. Indeed, in this case, the foot 146 of the abutment is on the stroke of a region 19'B of the recess. 19B during the movement of the movable support arm, so that it no longer interferes with the opening of the clamp.
  • the slot 141 has the shape of a buttonhole whose upper end 141 'is enlarged to allow the passage of the foot 146 of the stop. This high end is released only when the clamp is removed.
  • an O-ring 147 is disposed between the head 142 and the sheet 15B.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Gripping Jigs, Holding Jigs, And Positioning Jigs (AREA)
  • Clamps And Clips (AREA)
  • Manipulator (AREA)
  • Electric Cable Installation (AREA)

Claims (12)

  1. Zange mit Hebelübersetzung, die folgendes umfaßt, nämlich einen festen Arm (10), von dem ein Endteil (10A) geeignet ist, eine feste Backe (12) zu tragen, einen beweglichen Betätigungsarm (14), einen beweglichen Tragarm (18), der gegenüber dem festen Arm (10) angelenkt und geeignet ist, eine bewegliche Backe (20) zu tragen, sowie Übersetzungsmittel, die zwischen dem festen Arm und dem Betätigungsarm angeordnet sind, wobei der bewegliche Betätigungsarm (14) an dem festen Arm (10) angelenkt (16) ist, wobei die Übersetzungsmittel ein Stangensystem mit einer ersten und einer zweiten Stange (28, 30) aufweisen, die über eine Verbindungsachse (32) verbunden sind, wobei die erste Stange (28) an dem festen Arm (10) in einer ersten Stangenachse (28A) angelenkt ist und die zweite Stange (30) an dem beweglichen Tragarm (18) in einer zweiten Stangenachse (30A) angelenkt ist, wobei die Zange Mittel (34, 36) zum mechanischen Verbinden und zur Übertragung der Bewegung zwischen dem beweglichen Betätigungsarm und dem Stangensystem aufweist, dadurch gekennzeichnet, daß die Mittel zum mechanischen Verbinden und zur Übertragung der Bewegung Kurvenmittel (34, 36) umfassen.
  2. Zange nach Anspruch 1, dadurch gekennzeichnet, daß die Mittel zum mechanischen Verbinden und zur Übertragung der Bewegung eine Kurvenspur (34A), die mit einem der von dem beweglichen Betätigungsarm (14; 28, 30) und von dem Stangensystem gebildeten Mitteln fest verbunden ist, eine Kurvenrolle (36), die mit dem anderen der Elemente fest verbunden ist, sowie Mittel (34B) zum Halten dieser Rolle auf dieser Spur umfassen.
  3. Zange nach Anspruch 2, dadurch gekennzeichnet, daß die Kurvenspur mit dem beweglichen Betätigungsarm (14) fest verbunden ist, während die Kurvenrolle (36) mit der ersten Stange (28) fest verbunden ist.
  4. Zange nach Anspruch 3, dadurch gekennzeichnet, daß sich die Kurvenrolle (36) in einem Bereich der ersten Stange (28) befindet, der sich zwischen der Achse (16) zum Anlenken des beweglichen Arms (14) gegenüber dem festen Arm (10) und einer die erste Stangenachse (28A), die Verbindungsachse (32) und die zweite Stangenachse (30A) verbindenden Linie erstreckt.
  5. Zange nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß die Achse (16) zum Anlenken des beweglichen Tragarms (18) an dem festen Arm (10) mit der Achse (16) zum Anlenken des beweglichen Betätigungsarms (14) an dem festen Arm zusammenfällt.
  6. Zange nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß sie Mittel (40, 46; 140, 141, 19A) aufweist, um die Bewegung des beweglichen Betätigungsarms (14) in Richtung des Öffnens der Zange anzuhalten und um so eine Zwischenöffnungsausführung (Figur 5) zu definieren, in der die Zange in einem Öffnungswinkel geöffnet ist, der kleiner als ihr maximaler Öffnungswinkel ist.
  7. Zange nach Anspruch 6, dadurch gekennzeichnet, daß sie ein Halteorgan (40; 140) aufweist, das geeignet ist, eine Haltestellung (Figur 5) einzunehmen, in der es die Bewegung des beweglichen Betätigungsarms (14) anhält, sowie eine Freigabestellung (Figur 1), in der es diese Bewegung freigibt.
  8. Zange nach Anspruch 7, dadurch gekennzeichnet, daß das Halteorgan (40) durch elastische Rückstellmittel (44) ständig in seine Haltestellung rückgestellt wird.
  9. Zange nach einem der Ansprüche 7 und 8, dadurch gekennzeichnet, daß das Halteorgan (40) in seiner Haltestellung mit einer zu dem Stangensystem (28, 30) gehörenden Haltefläche (46) zusammenwirkt.
  10. Zange nach einem der Ansprüche 7 bis 9, dadurch gekennzeichnet, daß das Halteorgan von einem an dem festen Arm (10) schwenkbar angebrachten Hebel (40) gebildet ist.
  11. Zange nach Anspruch 7, dadurch gekennzeichnet, daß das Halteorgan von einem einstellbaren Anschlag (140) gebildet ist, der mit dem beweglichen Betätigungsarm (14) fest verbunden ist und dabei zwischen einer Haltestellung, in der er geeignet ist, mit dem beweglichen Tragarm (18) anschlagend zusammenzuwirken, um die Bewegung des letzteren in Richtung des Öffnens der Zange zu begrenzen, und einer Freigabestellung, in der er diese Bewegung freigibt, beweglich ist.
  12. Zange nach Anspruch 11, dadurch gekennzeichnet, daß der einstellbare Anschlag (140) in einem Schlitz (141) des beweglichen Betätigungsarms (14) gleitet.
EP01934088A 2000-05-12 2001-05-11 Zange mit kraftverstärkung Expired - Lifetime EP1280632B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR0006100A FR2808715B1 (fr) 2000-05-12 2000-05-12 Pince demultipliee
FR0006100 2000-05-12
PCT/FR2001/001425 WO2001085395A1 (fr) 2000-05-12 2001-05-11 Pince demultipliee

Publications (2)

Publication Number Publication Date
EP1280632A1 EP1280632A1 (de) 2003-02-05
EP1280632B1 true EP1280632B1 (de) 2009-05-06

Family

ID=8850174

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01934088A Expired - Lifetime EP1280632B1 (de) 2000-05-12 2001-05-11 Zange mit kraftverstärkung

Country Status (9)

Country Link
US (1) US20030167882A1 (de)
EP (1) EP1280632B1 (de)
JP (1) JP2004516148A (de)
KR (1) KR20020097266A (de)
AU (1) AU2001260399A1 (de)
BR (1) BR0110626A (de)
DE (1) DE60138615D1 (de)
FR (1) FR2808715B1 (de)
WO (1) WO2001085395A1 (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE20018390U1 (de) * 2000-10-27 2001-01-18 Wenzler Medizintechnik GmbH, 78665 Frittlingen Schneidzange
US10464179B1 (en) * 2018-02-23 2019-11-05 Rodger Gabriel Marchisset Quill stop

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US682701A (en) * 1901-02-01 1901-09-17 Matthew M Howland Locking-pliers.
US2620697A (en) * 1947-10-21 1952-12-09 Sarvie Walter Pliers
US3101017A (en) * 1959-12-29 1963-08-20 Burndy Corp Multiple stroke tool
FR1298930A (fr) * 1960-12-19 1962-07-20 Proner Sa Ets Pince notamment pour le sertissage
FR1305249A (fr) * 1961-11-09 1962-09-28 Amp Inc Outil à main multiplicateur de force
US3190155A (en) * 1962-11-16 1965-06-22 Ira J Warner Toggle operated pliers
US5014578A (en) * 1990-01-08 1991-05-14 Flentge Melvin L Pipe tongs
US5267464A (en) * 1991-12-30 1993-12-07 Cleland John G Pipe ring crimping tool
FR2736572B1 (fr) * 1995-07-13 1997-10-03 Facom Pince-etau
US5771584A (en) * 1997-03-20 1998-06-30 Wang; Meng Tun Shear with link interconnected handles
US6279432B1 (en) * 1999-06-09 2001-08-28 Merritt Armstrong Osborn Force multiplication hand tool

Also Published As

Publication number Publication date
JP2004516148A (ja) 2004-06-03
BR0110626A (pt) 2003-03-18
FR2808715B1 (fr) 2002-09-27
US20030167882A1 (en) 2003-09-11
WO2001085395A1 (fr) 2001-11-15
FR2808715A1 (fr) 2001-11-16
EP1280632A1 (de) 2003-02-05
DE60138615D1 (de) 2009-06-18
AU2001260399A1 (en) 2001-11-20
KR20020097266A (ko) 2002-12-31

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