EP0190773A2 - Pince - Google Patents

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Publication number
EP0190773A2
EP0190773A2 EP86200007A EP86200007A EP0190773A2 EP 0190773 A2 EP0190773 A2 EP 0190773A2 EP 86200007 A EP86200007 A EP 86200007A EP 86200007 A EP86200007 A EP 86200007A EP 0190773 A2 EP0190773 A2 EP 0190773A2
Authority
EP
European Patent Office
Prior art keywords
side plates
articulation point
leg
pliers
indentation
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.)
Withdrawn
Application number
EP86200007A
Other languages
German (de)
English (en)
Other versions
EP0190773A3 (fr
Inventor
Hans Undin
Hans Wiener
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.)
Ca Weidmueller & Co GmbH
Weidmueller Interface GmbH and Co KG
Original Assignee
Ca Weidmueller & Co GmbH
Weidmueller Interface GmbH and Co KG
CA Weidmueller GmbH and Co
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 Ca Weidmueller & Co GmbH, Weidmueller Interface GmbH and Co KG, CA Weidmueller GmbH and Co filed Critical Ca Weidmueller & Co GmbH
Publication of EP0190773A2 publication Critical patent/EP0190773A2/fr
Publication of EP0190773A3 publication Critical patent/EP0190773A3/fr
Withdrawn legal-status Critical Current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
    • B25B7/00—Pliers; Other hand-held gripping tools with jaws on pivoted limbs; Details applicable generally to pivoted-limb hand tools

Definitions

  • the invention relates to pliers of the type specified in the preamble of the appended claim 1. With “front”, “before” u. Like., or “rear”, “behind” u. Like. In the present description and in the attached claims, the direction towards the free end of the pair of legs or of the pair of handles is understood.
  • a known pliers of the type mentioned is shown in the accompanying drawings Fig.l and 2.
  • the indentations have so far only been in front of the first articulation point, i.e. in the sense of the foregoing definition, arranged between the first articulation point and the free end of the pair of legs, as close as possible to this articulation point. The reason for the greatest possible approach to the articulation point can be seen in the fact that otherwise the leg in question and thus the whole pliers would have to be longer, because the jaw always has a given space in front of the indentations.
  • the indentations form the location of most of the fractures when the pliers are subjected to heavy loads.
  • the indentations become rather steep, i.e. along an extremely short route, which increases the risk of cracking.
  • the object of the invention is to transform a pair of pliers of the type mentioned in such a way that there is a risk of breakage on site the indentations are reduced. This object is achieved in the manner which emerges from the attached patent claim 1, advantageous further developments being set out in the subclaims.
  • the indentation points Due to the fact that the indentation points are moved behind the first articulation point, their arrangement at a greater distance from this articulation point does not result in an extension of the pliers, as it extends in the rearward direction without this far beyond the point in question. As a result of the greater distance from the articulation point, the force component decreases in the above-mentioned moment formula because the distance component has become larger, and consequently the load on the leg concerned at the critical point decreases. Furthermore, the indentation can be less steep, i.e. be carried out over a longer distance, which reduces the risk of cracking.
  • FIGS. 3 and 4 corresponding to the parts in FIGS. 1 and 2 are generally designated with reference numbers increased by a hundred.
  • known pliers 10 of the type in question have a first leg 11, a second leg 12, a first handle 21 and a second handle 22.
  • the legs have free ends 11A, 12A and the handles 21, 22 have free ends 21A, 22A.
  • Interchangeable jaws 31, 32 are arranged in the two legs 11, 12 near the free ends 11A, 12A.
  • the second leg 12 and the second handle 22 are rigidly connected to one another to form a structural unit 13.
  • the first leg 11 has a rear extension 11B and is pivotally connected to the structural unit 13 in a first articulation point A by means of a connecting element 20.
  • the connecting member 20 comprises two tabs or projections 12B (only one of which is visible in the drawing) on the second leg 12 or on the assembly 13, and two tabs or projections 11B (only one of which is visible in the drawing) on the first Leg 11, as well as a connecting bolt 14, which passes through aligned openings in all four projections.
  • a second articulation point A 'at the rear end 11B' of the rear extension 11B the first handle 21 is articulated on the first leg 11.
  • Both legs 11, 12 and both handles 21, 22 are each constructed from two side plates such as 11 ', 11 "(FIG. 2), which are held at the desired mutual distance by means of spacer sleeves such as 15', 15".
  • the jaws 31, 32 contain fastening parts 31A, 32A in which openings are arranged for retaining screws 16, 17 which are anchored in the legs 11, 12.
  • the attachment parts 31A, 32A are inserted in both legs 11, 12 in the space defined by the spacers between the side plates.
  • the assembly 13 has a free space throughout which corresponds to the thickness of the fastening part 32A, that is to say that each of the two side plates of the assembly 13 lies entirely in one plane.
  • the side plates 11 ′, 11 ′′ of the first leg 11 are generally closer to one another so that the leg 11 can be accommodated between the two projections 12A ', 11 "each have an indentation E', E", which is located between the rear end 11D 'of the receiving chamber 11D and the connecting member 20 and is kept as short as possible (distance B). Thanks to the indentations E', E " the outer side surfaces of the pliers 10 are nowhere at a greater mutual distance than the distance S at the location of the receiving chamber 11D, because the indentation has created space for the projections 12B. A locking mechanism 29 is accommodated in the space between the side plates of the structural unit 13 and the first handle 11. Instead of the indentations E ', E ", however, there is the increased risk of breakage mentioned above.
  • first leg 111 with a free end 111A
  • second leg 112 with a free end 112A
  • first handle 121 with a free end 121A
  • second handle 122 with a free end 122A
  • the second leg 112 and the second handle 122 are rigidly connected to one another to form a structural unit 113.
  • the legs 111, 112 carry jaws 131, 132 which are held by means of screws 116, 117, which pass through the fastening parts 131A, 132 A of the jaws.
  • the first leg 111 has a rear extension 111B to which the first handle 121 is pivotally connected in the second articulation point A '.
  • the connecting member 120 comprises a pivotable inner connecting tab 130 which is arranged in the free space between the two side plates 111 ', 111 "of the first leg 111 and whose thickness corresponds to the width of this free space, and two thin outer connecting tabs 130' (of which only one in of Fi g. 3 is visible) which are arranged along the outer sides of the side plates.
  • the connection tabs 130, 130 ' are connected by means of a first connecting pin 114 to the first leg 111, and by a second connecting pin 114' hinged to the second leg 112.
  • the first connecting pin 114 forms the first articulation point A.
  • the handles 121, 122 are likewise constructed from two side plates, such as 121 ', 121 ", which are connected to one another by spacing elements 121B, 121C, and are provided with grip guards 25, 26, for example made of plastic.
  • the grip guards have an essentially T-shaped cross section Q. with a central trunk 25 'which engages in the space between the side plates 121', 121 ", and a crossbar 25" which surrounds the two side plates 121 ', 121 "on their outer circumference. Pins passing through the side plates 121 ', 121 "and the stem 25' can hold the grip guards in place.
  • the construction of the grip guards stiffens the handles (honeycomb component).
  • the free space in the first leg 111 also continues behind the receiving chamber 111D with an undiminished width, which among other things Space for an "inner” connecting element, for example the above-mentioned thick connecting strap 130, is created Indentations D ', D "in front of the second articulation point A' enable the side plates of the first handle 121 to have the same mutual distance as those in the front part of the first leg 111, so that, for example, a locking mechanism 129 still remains in the space between the side plates of the first handle 121 and those of the unit 113 can be arranged.
  • Indentations D ', D "in front of the second articulation point A' enable the side plates of the first handle 121 to have the same mutual distance as those in the front part of the first leg 111, so that, for example, a locking mechanism 129 still remains in the space between the side plates of the first handle 121 and those of the unit 113 can be arranged.
  • the pliers 110 can also have a connecting element of the type like the pliers 10 according to FIG. 1 (think, for example, the connecting lugs 130 'rigidly connected to the structural unit 113) and further, if at the price of an asymmetry (which, however, has no functional significance), instead of indentations in both side plates, a single, twice as deep indentation can only be arranged in one side plate.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Gripping Jigs, Holding Jigs, And Positioning Jigs (AREA)
  • Scissors And Nippers (AREA)
  • Food-Manufacturing Devices (AREA)
  • Table Equipment (AREA)
EP86200007A 1985-02-06 1986-01-06 Pince Withdrawn EP0190773A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE8500536A SE8500536D0 (sv) 1985-02-06 1985-02-06 Tang
SE8500536 1985-02-06

Publications (2)

Publication Number Publication Date
EP0190773A2 true EP0190773A2 (fr) 1986-08-13
EP0190773A3 EP0190773A3 (fr) 1988-09-07

Family

ID=20359023

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86200007A Withdrawn EP0190773A3 (fr) 1985-02-06 1986-01-06 Pince

Country Status (4)

Country Link
US (1) US4726266A (fr)
EP (1) EP0190773A3 (fr)
JP (1) JPS61182776A (fr)
SE (1) SE8500536D0 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT400544B (de) * 1994-02-23 1996-01-25 Dietzel Gmbh Stanzzange
DE19581674C2 (de) * 1994-06-17 2002-09-12 Petersen Mfg Handwerkzeug mit zusammengesetzten, gegenüberliegenden Handgriffen

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5007312A (en) * 1990-01-11 1991-04-16 Bailey Carey G Wrench for metal tubing connectors
US4987626A (en) * 1990-02-26 1991-01-29 Montgomery Robert D Locking pliers with screwdriver handles
JPH0621855A (ja) * 1992-04-28 1994-01-28 Philips Electron Nv 送信機ネットワーク
DE19802287C1 (de) * 1998-01-22 1998-12-24 Wezag Gmbh Preßzange mit auswechselbaren Preßbacken
US20090199344A1 (en) * 2007-10-22 2009-08-13 Normark Innovations, Inc. Fishing tool for crimping ferrules

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE568448A (fr) *
US2532659A (en) * 1948-06-01 1950-12-05 Burns Bruce Snap-lock wrench
US2838970A (en) * 1955-08-26 1958-06-17 Thomas & Betts Corp Replaceable die nest crimping tool
FR1201823A (fr) * 1957-08-29 1960-01-06 Amp Inc Perfectionnements aux outils de sertissage de connecteurs électriques sur des conducteurs électriques
US3504417A (en) * 1968-02-29 1970-04-07 Sargent & Co Locator in a crimping tool for an electrical connector
GB2072081A (en) * 1980-03-19 1981-09-30 Toolema Ab Tool having two working jaws particularly for use in crimping
EP0125708A2 (fr) * 1983-04-19 1984-11-21 C.A. Weidmüller GmbH & Co. Dispositif d'ajustage pour des appareils pour le pressage des souliers de câble

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1762562A (en) * 1928-08-30 1930-06-10 Herbert S Powell Thread-swelling machine
US2099246A (en) * 1937-03-27 1937-11-16 Raffles Harry Metal tapping tool
US2341654A (en) * 1941-12-26 1944-02-15 Franz A Richter Wrench
US2359083A (en) * 1942-08-17 1944-09-26 Aircraft Marine Prod Inc Tool for making electrical connectors
US3487524A (en) * 1967-11-16 1970-01-06 Sargent & Co Locator and holder in a crimping tool for an electrical connector
US4353240A (en) * 1980-01-15 1982-10-12 Toolema Ab Crimping tool

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE568448A (fr) *
US2532659A (en) * 1948-06-01 1950-12-05 Burns Bruce Snap-lock wrench
US2838970A (en) * 1955-08-26 1958-06-17 Thomas & Betts Corp Replaceable die nest crimping tool
FR1201823A (fr) * 1957-08-29 1960-01-06 Amp Inc Perfectionnements aux outils de sertissage de connecteurs électriques sur des conducteurs électriques
US3504417A (en) * 1968-02-29 1970-04-07 Sargent & Co Locator in a crimping tool for an electrical connector
GB2072081A (en) * 1980-03-19 1981-09-30 Toolema Ab Tool having two working jaws particularly for use in crimping
EP0125708A2 (fr) * 1983-04-19 1984-11-21 C.A. Weidmüller GmbH & Co. Dispositif d'ajustage pour des appareils pour le pressage des souliers de câble

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT400544B (de) * 1994-02-23 1996-01-25 Dietzel Gmbh Stanzzange
DE19581674C2 (de) * 1994-06-17 2002-09-12 Petersen Mfg Handwerkzeug mit zusammengesetzten, gegenüberliegenden Handgriffen

Also Published As

Publication number Publication date
JPH0369666B2 (fr) 1991-11-01
SE8500536D0 (sv) 1985-02-06
EP0190773A3 (fr) 1988-09-07
US4726266A (en) 1988-02-23
JPS61182776A (ja) 1986-08-15

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