EP0624433B1 - Zange - Google Patents

Zange Download PDF

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Publication number
EP0624433B1
EP0624433B1 EP94104772A EP94104772A EP0624433B1 EP 0624433 B1 EP0624433 B1 EP 0624433B1 EP 94104772 A EP94104772 A EP 94104772A EP 94104772 A EP94104772 A EP 94104772A EP 0624433 B1 EP0624433 B1 EP 0624433B1
Authority
EP
European Patent Office
Prior art keywords
pliers
halves
screw
plastic
bearing
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
EP94104772A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0624433A1 (de
Inventor
Hermann J. Zerver
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.)
Hazet Werk Hermann Zerver GmbH and Co KG
Original Assignee
Hazet Werk Hermann Zerver 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 Hazet Werk Hermann Zerver GmbH and Co KG filed Critical Hazet Werk Hermann Zerver GmbH and Co KG
Publication of EP0624433A1 publication Critical patent/EP0624433A1/de
Application granted granted Critical
Publication of EP0624433B1 publication Critical patent/EP0624433B1/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
    • B25G—HANDLES FOR HAND IMPLEMENTS
    • B25G1/00—Handle constructions
    • B25G1/10—Handle constructions characterised by material or shape
    • B25G1/12—Handle constructions characterised by material or shape electrically insulating material
    • 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
    • B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
    • B25B27/14—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for assembling objects other than by press fit or detaching same
    • B25B27/20—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for assembling objects other than by press fit or detaching same inserting or withdrawing split pins or circlips
    • B25B27/205—Pliers or tweezer type tools with tow actuated 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

Definitions

  • the invention relates to pliers, in particular for circlips, with two Pliers halves that are pivotally connected to each other via a trade and formed into a handle at one end and at the other End with an appropriate training for the respective purpose Functional element are provided, the trade by one at one Half of the pliers molded bearing journal with cylindrical outer surface and through a cylindrical bearing opening formed in the other pliers half with the outer diameter of the bearing journal corresponding inner diameter and is formed by a screw which is screwed into the bearing journal is.
  • a pair of pliers of this type is known from FR-A-2 328 669.
  • Pliers are known for a wide variety of applications. So For example, GB-A-2 119 695 already shows a pair of pliers Plastic formed pliers halves. A disadvantage of this known pliers is that the functional elements individually with the working surfaces of the pliers halves have to be riveted and the trade is also divided into several parts is, so that a simple, fast and therefore inexpensive mass production this known pliers is not possible.
  • Pliers with two pliers halves made of plastic are also made FR-A-2 328 669 and GB-A-1 538 828 are known. These well-known Pliers in turn have multi-part swivel connections in the area of the trade, that of a simple and fast mass production are detrimental.
  • the functional elements are also in GB-A-1 538 828 as individually to be connected to the front ends of the pliers half Components formed, the additional steps, namely the customization of the functional elements on the work surfaces.
  • the invention is based on the object of further developing the pliers in such a way that they can be produced inexpensively for a wide variety of uses and are nevertheless distinguished by a robust and low-wear design.
  • the pliers halves consist of homogeneous plastic material, that the functional element is molded into the plastic of the ends of the pliers halves, and that the screw head of the screw rests exclusively on the outside of the pliers half surrounding the bearing opening.
  • the pliers halves can be mass-produced from plastic manufacture inexpensively, using manufacturing processes such as For example, the plastic injection molding previously manufactured separately Functional elements molded into the plastic of the pliers halves can be. By others, the respective purpose appropriately trained functional elements can be pliers produce for different areas of application without a Retrofitting the production line is necessary.
  • the Plier halves made of a glass fiber reinforced polyamide manufactured so that the pliers have a high strength and has high rigidity.
  • the height of the Filler content can also the raw material costs for the plastic can be controlled.
  • this is Functional element through the solidified plastic with the corresponding Pliers half connected so that gluing or It is not necessary to screw in the functional elements. So can, for example, prefabricated functional elements in one Injection molding tool to be inserted before a mold filling. Dependent the respective spray pressure results in a fixed one Connection between functional element and pliers half, whereby the geometric shape of the free ends of the functional elements, which is adapted to the respective application of the pliers, can be changed without retooling the injection molding machine.
  • a recess is preferably formed on the functional element, which is filled by the solidified plastic, so that the functional element is positively connected to the pliers half is.
  • the functional element can neither in its pliers-side receptacle still rotate axially from this pull out.
  • the functional elements are expediently provided with a hard material layer, e.g. B. made of TiN, TiC, WC or BN, so that they are protected against wear and deformation.
  • a hard material layer e.g. B. made of TiN, TiC, WC or BN, so that they are protected against wear and deformation.
  • the inward-facing surfaces of the pliers halves formed by feathers.
  • Compression spring is easy with the pliers halves connected and serves to reset the pliers halves in one Starting position.
  • These cones can also be mass-produced plastic technology with the pliers halves and the molded functional elements in one piece and thus inexpensive manufacture.
  • the embodiment shows pliers for circlips with two pliers halves, one in the bottom view shown pliers half 1 and an overlying Pliers half 2, which are connected to each other via a trade 30 are.
  • the pliers halves 1, 2 can be gripped at one end molded and at the other end with a Functional element 4 provided.
  • Fig. 3 is on the pliers half 1 cylindrical bearing opening 31 formed, the outer diameter the diameter of a bearing pin formed on the pliers half 2 32 corresponds.
  • the journal 32 lies in the bearing opening 31, so that a cylindrical outer surface 33 of the Bearing pin 32 is gripped by the bearing opening 31.
  • the two halves of the pliers 1, 2 are located in the area of the trade 30 the respective, the bearing opening 31 or the journal 32 surrounding inner sides to each other.
  • a washer 36 is arranged so that the axial force of the Screw, which both pliers halves 1 and 2 in the area of Trade 30 presses against each other on a widened area on the outside of the bearing opening 31 surrounding the Pliers half 1 is transferred.
  • the longitudinal section according to FIG. 4 shows that the functional element 4th has a recess 41 which is made of the material of the Half of the pliers is filled. This makes the functional element 4th not only positively enclosed in the radial direction, but also in the axial direction, so that an axial Pulling out the functional element 4 is prevented. Farther secures the filled with the material of the pliers halves 1, 2 Recess 41, the functional element 4 additionally against twisting.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Gripping Jigs, Holding Jigs, And Positioning Jigs (AREA)
  • Harvester Elements (AREA)
  • Pivots And Pivotal Connections (AREA)
EP94104772A 1993-05-08 1994-03-25 Zange Expired - Lifetime EP0624433B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE9307010U 1993-05-08
DE9307010U DE9307010U1 (de) 1993-05-08 1993-05-08 Zange

Publications (2)

Publication Number Publication Date
EP0624433A1 EP0624433A1 (de) 1994-11-17
EP0624433B1 true EP0624433B1 (de) 1998-07-15

Family

ID=6893040

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94104772A Expired - Lifetime EP0624433B1 (de) 1993-05-08 1994-03-25 Zange

Country Status (3)

Country Link
EP (1) EP0624433B1 (es)
AT (1) ATE168307T1 (es)
DE (2) DE9307010U1 (es)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2713126A1 (fr) * 1993-12-06 1995-06-09 Bost Garnache Ind Pince pour joncs élastiques.
DE59603713D1 (de) * 1996-03-01 1999-12-30 Hazet Werk Zerver Hermann Zange mit zwei Zangenhälften aus Kunststoff-Formkörpern
FR2754204B1 (fr) * 1996-10-04 1998-12-18 Bost Garnache Ind Procede de fabrication d'une branche d'outil, et gamme de pinces correspondante
US20070074610A1 (en) * 2003-03-05 2007-04-05 Andreas Heinsohn Circlip pliers
EP1652623A3 (en) * 2004-10-28 2006-09-13 Herramientas Eurotools, S.A. Pins at the tips of a manual tool
ES2265242B1 (es) * 2004-10-28 2008-03-01 Herramientas Eurotools, S.A. Espiga de punta de herramientas manuales.
FR3032897B1 (fr) * 2015-02-25 2017-07-28 Gillet Group Dispositif de rivetage pour assemblage de precision
CN107363747A (zh) * 2017-07-05 2017-11-21 苏州鼎点盛世电子科技有限公司 钢丝钳
CN115139258B (zh) * 2021-03-30 2024-04-16 中国航发商用航空发动机有限责任公司 深腔空间内挡圈的操作设备

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1012132A (fr) * 1949-06-14 1952-07-04 Pistons Self Adjusting S A R L Perfectionnements apportés aux outils du genre des pinces, et notamment à ceux destinés à des anneaux de retenue
FR2225546B1 (es) * 1973-04-12 1976-10-08 Toyoda Chuo Kenkyusho Kk
GB1509645A (en) * 1975-10-20 1978-05-04 Fletcher Terry Co Glass breaking pliers
GB1538828A (en) * 1976-12-20 1979-01-24 Fletcher Terry Co Glass breaking pliers
GB2119695A (en) * 1982-05-05 1983-11-23 Kenneth Robert Scott Pliers
FR2562622A1 (fr) * 1984-04-09 1985-10-11 Chavagne Jean Ressorts pour ecarter les poignees de pinces

Also Published As

Publication number Publication date
DE59406436D1 (de) 1998-08-20
EP0624433A1 (de) 1994-11-17
ATE168307T1 (de) 1998-08-15
DE9307010U1 (de) 1993-07-08

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