EP0624433A1 - Pliers - Google Patents
Pliers Download PDFInfo
- Publication number
- EP0624433A1 EP0624433A1 EP94104772A EP94104772A EP0624433A1 EP 0624433 A1 EP0624433 A1 EP 0624433A1 EP 94104772 A EP94104772 A EP 94104772A EP 94104772 A EP94104772 A EP 94104772A EP 0624433 A1 EP0624433 A1 EP 0624433A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- pliers
- halves
- functional element
- bearing
- plastic
- 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
Links
Images
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 which are pivotally connected to one another via a trade and are each formed at one end to form a handle and at the other end are provided with a functional part which is designed in accordance with the intended use.
- Such pliers are known for a wide variety of applications.
- the invention has for its object to develop pliers of the type described in such a way that they are cheaper to manufacture, the pliers at the same time insulating and is lighter than the known pliers.
- the solution to this problem by the invention is characterized in that the pliers halves are made of plastic and the functional element is molded into the end of the pliers halves.
- the pliers halves can be mass-produced inexpensively from plastic, with manufacturing processes such as plastic injection molding previously producing them separately Functional elements can be molded into the plastic of the pliers halves. Other functional elements designed for the respective application can be used to produce pliers for different areas of application without the need to convert the production system.
- the trade is formed by a bearing journal formed on the one half of the tong with a cylindrical outer surface and by a cylindrical bearing opening formed in the other half of the tong with the inside diameter corresponding to the outside diameter of the journal and by a screw which is screwed into the journal and with its screw head on the the outside of the pliers half surrounding the bearing opening.
- This bearing between the two halves of the pliers is secured by a screw which is screwed into the bearing journal and rests with its screw head on the outside of the tong half surrounding the bearing opening. Since the screw is a standard item, it can be obtained inexpensively and easily. The screw can engage in a pre-cut thread but can also cut the thread itself in the plastic, which leads to a further reduction in production costs.
- a washer is placed between the screw head and the outside of the pliers half surrounding the bearing opening, so that the axial forces applied by the screw are introduced into the plastic with little surface pressure.
- the pliers halves are made from a glass fiber reinforced polyamide, so that the pliers have high strength and high rigidity.
- the amount of filler can also control the raw material costs for the plastic.
- the functional element is connected to the corresponding pliers half by the solidified plastic, so that it is not necessary to glue or screw in the functional elements.
- prefabricated functional elements can be inserted into an injection mold before a mold is filled.
- there is a firm connection between the functional element and the pliers half the geometric shape of the free ends of the functional elements, which is adapted to the particular application of the pliers, being able to be changed without retooling the injection molding machine.
- a recess is preferably formed on the functional element, which is filled with the solidified plastic, so that the functional element is positively connected to the pliers half.
- the functional element can neither be rotated in its pliers-side receptacle nor pulled axially out of it.
- the functional elements are expediently coated with a hard material, e.g. B. made of TiN, TiC, WC or BN, so that they are protected against wear and deformation.
- a hard material e.g. B. made of TiN, TiC, WC or BN
- pins for receiving springs are formed on the inwardly facing surfaces of the pliers halves.
- a compression spring attached to these pins is connected to the pliers halves in a simple manner and serves to return the pliers halves to a starting position.
- These spigots can also be mass-produced in one piece, and thus inexpensively, using the pliers halves and the molded-on functional elements.
- the embodiment shows a pair of pliers for circlips with two pliers halves, namely a pliers half 1 shown in the view below and a pliers half 2 lying above it, which are connected to one another via a trade 30.
- the pliers halves 1, 2 are each shaped into handles at one end and provided with a functional element 4 at the other end.
- a cylindrical bearing opening 31 is formed on the pliers half 1, the outer diameter of which corresponds to the diameter of a bearing pin 32 formed on the pliers half 2.
- the bearing journal 32 lies in the bearing opening 31, so that the cylindrical opening 33 of the bearing journal 32 is encompassed by the bearing opening 31.
- the two pliers halves 1, 2 lie against one another with the respective inner sides surrounding the bearing opening 31 or the bearing journal 32.
- a washer 36 is arranged between a screw head 35 of a screw 34 engaging in the bearing pin 32 and the outside of the pliers half 1 surrounding the bearing opening 31, so that the axial force of the screw, which presses both pliers halves 1 and 2 against each other in the area of the trade 30, on a widened surface is transferred to the outside of the pliers half 1 surrounding the bearing opening 31.
- the pliers halves 1 and 2 When the pliers are actuated, the pliers halves 1 and 2 can be pivoted relative to one another about the axis of the bearing journal 32 or the bearing opening 31. Since on the one hand the flat surfaces of their inside are pressed against each other by the axial force of the screw 34 and the bearing opening 31 encompasses the lateral surface 33, movements in the other direction are prevented, so that the permissible pivoting movement about the pivot axis is reliably guided.
- the longitudinal section according to FIG. 4 shows that the functional element 4 has a recess 41 which is filled with the material of the pliers half.
- the functional element 4 is not only positively enclosed in the radial direction, but also in the axial direction, so that the functional element 4 is prevented from being pulled out axially.
- the recess 41 filled with the material of the pliers halves 1, 2 additionally secures the functional element 4 against rotation.
Abstract
Description
Die Erfindung betrifft eine Zange, insbesondere für Sicherungsringe, mit zwei Zangenhälften, die miteinander über ein Gewerbe verschwenkbar verbunden und jeweils an einem Ende zu einem Handgriff ausgebildet und am anderen Ende mit einem dem jeweiligen Einsatzzweck entsprechend ausgebildeten Funktionsteil versehen sind.The invention relates to pliers, in particular for circlips, with two pliers halves which are pivotally connected to one another via a trade and are each formed at one end to form a handle and at the other end are provided with a functional part which is designed in accordance with the intended use.
Derartige Zangen sind für die unterschiedlichsten Anwendungsbereiche bekannt.Such pliers are known for a wide variety of applications.
Der Erfindung liegt die Aufgabe zugrunde, Zangen der eingangs beschriebenen Art derart weiterzubilden, daß sie preiswerter zu fertigen sind, wobei die Zange zugleich isolierend wirkt und leichter als die bekannten Zangen ist.The invention has for its object to develop pliers of the type described in such a way that they are cheaper to manufacture, the pliers at the same time insulating and is lighter than the known pliers.
Die Lösung dieser Aufgabenstellung durch die Erfindung ist dadurch gekennzeichnet, daß die Zangenhälften aus Kunststoff hergestellt sind und das Funktionselement in das Ende der Zangenhälften eingeformt ist.The solution to this problem by the invention is characterized in that the pliers halves are made of plastic and the functional element is molded into the end of the pliers halves.
Als Massenartikel aus Kunststoff lassen sich die Zangenhälften preiswert herstellen, wobei mit Fertigungsverfahren wie beispielsweise dem Kunststoffspritzguß vorher getrennt gefertigte Funktionselemente in den Kunststoff der Zangenhälften eingeformt werden können. Durch andere, dem jeweiligen Einsatzzweck entsprechend ausgebildete Funktionselemente lassen sich Zangen für unterschiedliche Anwendungsbereiche herstellen, ohne daß ein Umrüsten der Produktionsanlage notwendig ist.The pliers halves can be mass-produced inexpensively from plastic, with manufacturing processes such as plastic injection molding previously producing them separately Functional elements can be molded into the plastic of the pliers halves. Other functional elements designed for the respective application can be used to produce pliers for different areas of application without the need to convert the production system.
Erfindungsgemäß ist das Gewerbe durch einen an der einen Zangenhälfte angeformten Lagerzapfen mit zylindrischer Mantelfläche und durch eine in der anderen Zangenhälfte ausgebildete zylindrische Lageröffnung mit dem Außendurchmesser des Lagerzapfens entsprechendem Innendurchmesser sowie durch eine Schraube gebildet, die in den Lagerzapfen eingeschraubt ist und mit ihrem Schraubenkopf an der die Lageröffnung umgebenden Außenseite der Zangenhälfte anliegt. Mit den bekannten Massenherstellungsverfahren der Kunststofftechnik ist eine entsprechende Passung zwischen Lagerzapfen und Lageröffnung, durch die eine Lagerung der notwendigen Qualität gebildet wird, kostengünstig zu fertigen. Da die Lageröffnung an einer zylindrischen Mantelfläche des Lagerzapfens großflächig anliegt sind die beiden Zangenhälften um die Lagerzapfen- bzw. Lageröffnungsachse gegeneinander verschwenkbar. Durch den großflächigen Kontakt kann das Moment zwischen den Funktionselementen und den Handgriffen sicher übertragen werden. Diese Lagerung zwischen den beiden Zangenhälften wird durch eine Schraube, die in den Lagerzapfen eingeschraubt ist und mit ihrem Schraubenkopf an der die Lageröffnung umgebenden Außenseite der Zangenhälfte anliegt, gesichert. Da es sich bei der Schraube um einen Standardartikel handelt, kann sie kostengünstig und einfach beschafft werden. Dabei kann die Schraube in einem vorgeschnittenen Gewinde eingreifen aber auch sich in dem Kunststoff das Gewinde selber schneiden, was zu einer weiteren Verringerung der Fertigungskosten führt.According to the invention, the trade is formed by a bearing journal formed on the one half of the tong with a cylindrical outer surface and by a cylindrical bearing opening formed in the other half of the tong with the inside diameter corresponding to the outside diameter of the journal and by a screw which is screwed into the journal and with its screw head on the the outside of the pliers half surrounding the bearing opening. With the known mass production processes in plastics technology, a corresponding fit between the bearing journal and the bearing opening, by means of which the necessary quality of storage is formed, can be produced inexpensively. Since the bearing opening bears over a large area on a cylindrical outer surface of the bearing journal, the two pliers halves can be pivoted relative to one another about the bearing journal or bearing opening axis. Thanks to the large-area contact, the moment between the functional elements and the handles can be safely transmitted. This bearing between the two halves of the pliers is secured by a screw which is screwed into the bearing journal and rests with its screw head on the outside of the tong half surrounding the bearing opening. Since the screw is a standard item, it can be obtained inexpensively and easily. The screw can engage in a pre-cut thread but can also cut the thread itself in the plastic, which leads to a further reduction in production costs.
Bei einer vorteilhaften Ausgestaltung der Erfindung ist zwischen dem Schraubenkopf und der die Lageröffnung umgebenden Außenseite der Zangenhälfte eine Scheibe unterlegt, so daß die von der Schraube aufgebrachten axialen Kräfte mit geringer Flächenpressung in den Kunststoff eingeleitet werden.In an advantageous embodiment of the invention, a washer is placed between the screw head and the outside of the pliers half surrounding the bearing opening, so that the axial forces applied by the screw are introduced into the plastic with little surface pressure.
Bei einer bevorzugten Ausführungsform der Erfindung sind die Zangenhälften aus einem glasfaserverstärkten Polyamid hergestellt, so daß die Zange eine hohe Festigkeit besitzt und über eine hohe Steifigkeit verfügt. Durch die Höhe des Füllstoffanteils können darüber hinaus die Rohstoffkosten für den Kunststoff gesteuert werden.In a preferred embodiment of the invention, the pliers halves are made from a glass fiber reinforced polyamide, so that the pliers have high strength and high rigidity. The amount of filler can also control the raw material costs for the plastic.
Bei einer vorteilhaften Weiterbildung der Erfindung ist das Funktionselement durch den erstarrten Kunststoff mit der entsprechenden Zangenhälfte verbunden, so daß ein Einkleben bzw. Einschrauben der Funktionselemente nicht notwendig ist. So können beispielsweise vorgefertigte Funktionselemente in ein Spritzgußwerkzeug vor einer Formfüllung eingelegt werden. Abhängig von dem jeweiligen Spritzdruck ergibt sich somit eine feste Verbindung zwischen Funktionselement und Zangenhälfte, wobei die geometrische Ausformung der freien Enden der Funktionselemente, die dem jeweiligen Einsatzzweck der Zange angepaßt ist, ohne Umrüsten der Spritzgußmaschine verändert werden kann.In an advantageous development of the invention, the functional element is connected to the corresponding pliers half by the solidified plastic, so that it is not necessary to glue or screw in the functional elements. For example, prefabricated functional elements can be inserted into an injection mold before a mold is filled. Depending on the respective injection pressure, there is a firm connection between the functional element and the pliers half, the geometric shape of the free ends of the functional elements, which is adapted to the particular application of the pliers, being able to be changed without retooling the injection molding machine.
Vorzugsweise ist an dem Funktionselement eine Ausnehmung ausgeformt, die von dem erstarrten Kunststoff ausgefüllt ist, so daß das Funktionselement formschlüssig mit der Zangenhälfte verbunden ist. Dadurch läßt sich das Funktionselement weder in seiner zangenseitigen Aufnahme drehen noch axial aus dieser herausziehen.A recess is preferably formed on the functional element, which is filled with the solidified plastic, so that the functional element is positively connected to the pliers half. As a result, the functional element can neither be rotated in its pliers-side receptacle nor pulled axially out of it.
Zweckmäßigerweise sind die Funktionselemente mit einer Hartstoffschicht, z. B. aus TiN, TiC, WC oder BN versehen, so daß sie gegen Verschleiß und Verformung geschützt sind.The functional elements are expediently coated with a hard material, e.g. B. made of TiN, TiC, WC or BN, so that they are protected against wear and deformation.
Bei einer vorteilhaften Weiterbildung der Erfindung sind an den nach innen weisenden Flächen der Zangenhälften Stifte zur Aufnahme von Federn ausgebildet. Eine an diesen Stiften befestigte Druckfeder ist mit den Zangenhälften auf einfache Weise verbunden und dient der Rückstellung der Zangenhälften in eine Ausgangsstellung. Auch diese Zapfen lassen sich in Massenherstellungsverfahren der Kunststofftechnik mit den Zangenhälften und den angeformten Funktionselementen einstückig und somit kostengünstig fertigen.In an advantageous development of the invention, pins for receiving springs are formed on the inwardly facing surfaces of the pliers halves. A compression spring attached to these pins is connected to the pliers halves in a simple manner and serves to return the pliers halves to a starting position. These spigots can also be mass-produced in one piece, and thus inexpensively, using the pliers halves and the molded-on functional elements.
Auf der Zeichnung ist ein Ausführungsbeispiel einer erfindungsgemäßen Zange dargestellt, und zwar zeigen:
- Fig. 1
- eine Draufsicht einer Zange,
- Fig. 2
- eine Seitenansicht der Zange nach Fig. 1,
- Fig. 3
- einen Querschnitt gemäß der Schnittlinie III-III in Fig. 1 und
- Fig. 4
- einen Längsschnitt gemäß der Schnittlinie IV-IV in Fig. 1.
- Fig. 1
- a top view of pliers,
- Fig. 2
- 2 shows a side view of the pliers according to FIG. 1,
- Fig. 3
- a cross section along the section line III-III in Fig. 1 and
- Fig. 4
- a longitudinal section along the section line IV-IV in Fig. 1st
Das Ausführungsbeispiel zeigt eine Zange für Sicherungsringe mit zwei Zangenhälften, und zwar einer in der Ansicht untenliegend dargestellten Zangenhälfte 1 und einer darüberliegenden Zangenhälfte 2, die miteinander über ein Gewerbe 30 verbunden sind. Die Zangenhälften 1, 2 sind jeweils an einem Ende zu Handgriffen ausgeformt und an dem jeweils anderen Ende mit einem Funktionselement 4 versehen.The embodiment shows a pair of pliers for circlips with two pliers halves, namely a
Wie in Fig. 3 zu erkennen, ist an der Zangenhälfte 1 eine zylindrische Lageröffnung 31 ausgebildet, deren Außendurchmesser dem Durchmesser eines an der Zangenhälfte 2 ausgebildeten Lagerzapfens 32 entspricht. Der Lagerzapfen 32 liegt in der Lageröffnung 31, so daß eine zylindrische Mantelfläche 33 des Lagerzapfens 32 von der Lageröffnung 31 umgriffen wird. Im Bereich des Gewerbes 30 liegen die beiden Zangenhälften 1, 2 mit den jeweiligen, die Lageröffnung 31 bzw. den Lagerzapfen 32 umgebenden Innenseiten aneinander. Zwischen einem Schraubenkopf 35 einer in den Lagerzapfen 32 eingreifenden Schraube 34 und der die Lageröffnung 31 umgebenden Außenseite der Zangenhälfte 1 ist eine Unterlegscheibe 36 angeordnet, so daß die axiale Kraft der Schraube, welche beide Zangenhälften 1 und 2 im Bereich des Gewerbes 30 gegeneinander drückt, auf einer verbreiterten Fläche auf die die Lageröffnung 31 umgebende Außenseite der Zangenhälfte 1 übertragen wird.As can be seen in FIG. 3, a
Bei einer Betätigung der Zange können die Zangenhälften 1 und 2 um die Achse des Lagerzapfens 32 bzw. der Lageröffnung 31 gegeneinander verschwenkt werden. Da einerseits die ebenen Flächen ihrer Innenseite durch die axiale Kraft der Schraube 34 gegeneinander gedrückt werden und die Lageröffnung 31 die Mantelfläche 33 umgreift, werden Bewegungen in anderer Richtung unterbunden, so daß die zulässige Schwenkbewegung um die Schwenkachse sicher geführt ist. Eine auf Stifte 5, die an den nach innen weisenden Flächen der Zangenhälften 1, 2 ausgebildet sind, aufgesteckte und hier nicht dargestellte Feder stellt die Zangenhälften in eine gespreizte Endstellung zurück.When the pliers are actuated, the
Der Längsschnitt nach Fig. 4 zeigt, daß das Funktionselement 4 eine Ausnehmung 41 aufweist, welche von dem Material der Zangenhälfte ausgefüllt ist. Dadurch ist das Funktionselement 4 nicht nur in radialer Richtung formschlüssig umschlossen, sondern auch in axialer Richtung, so daß ein axiales Herausziehen des Funktionselements 4 verhindert wird. Weiterhin sichert die mit dem Material der Zangenhälften 1, 2 ausgefüllte Ausnehmung 41 das Funktionselement 4 zusätzlich gegen Verdrehen.The longitudinal section according to FIG. 4 shows that the
- 11
- ZangenhälfteHalf of the pliers
- 22nd
- ZangenhälfteHalf of the pliers
- 3030th
- GewerbeBusiness
- 3131
- LageröffnungWarehouse opening
- 3232
- LagerzapfenBearing journal
- 3333
- MantelflächeLateral surface
- 3434
- Schraubescrew
- 3535
- SchraubenkopfScrew head
- 3636
- UnterlegscheibeWasher
- 44th
- FunktionselementFunctional element
- 4141
- AusnehmungRecess
- 55
- Stiftpen
Claims (8)
dadurch gekennzeichnet,
daß die Zangenhälften (1, 2) aus Kunststoff hergestellt sind und das Funktionselement (4) in das Ende der Zangenhälften (1, 2) eingeformt ist.Pliers, in particular for circlips, with two pliers halves which are pivotally connected to one another via a trade and are each formed at one end to form a handle and at the other end are provided with a functional element designed for the respective intended use,
characterized by
that the pliers halves (1, 2) are made of plastic and the functional element (4) is molded into the end of the pliers halves (1, 2).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE9307010U DE9307010U1 (en) | 1993-05-08 | 1993-05-08 | |
| DE9307010U | 1993-05-08 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0624433A1 true EP0624433A1 (en) | 1994-11-17 |
| EP0624433B1 EP0624433B1 (en) | 1998-07-15 |
Family
ID=6893040
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP94104772A Expired - Lifetime EP0624433B1 (en) | 1993-05-08 | 1994-03-25 | Pliers |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP0624433B1 (en) |
| AT (1) | ATE168307T1 (en) |
| DE (2) | DE9307010U1 (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0794039A1 (en) * | 1996-03-01 | 1997-09-10 | Hazet-Werk Hermann Zerver GmbH & Co. KG | Pliers with two arms made from moulded plastic |
| FR2754204A1 (en) * | 1996-10-04 | 1998-04-10 | Bost Garnache Ind | Tool branch manufacturing procedure, e.g. for one half of pliers |
| WO2004078418A1 (en) * | 2003-03-05 | 2004-09-16 | Knipex-Werk C. Gustav Putsch Kg | Circlip pliers |
| EP1652623A3 (en) * | 2004-10-28 | 2006-09-13 | Herramientas Eurotools, S.A. | Pins at the tips of a manual tool |
| ES2297994A1 (en) * | 2004-10-28 | 2008-05-01 | Herramientas Eurotools, S.A. | Pins used on tip of manual tool, such as pliers, has first cone having surface at rear portion with concave curved profile as continuation of recess for connecting generatrix of cylindrical surface to generatrix of conical grippers |
| CN107363747A (en) * | 2017-07-05 | 2017-11-21 | 苏州鼎点盛世电子科技有限公司 | Cutting pliers |
| CN115139258A (en) * | 2021-03-30 | 2022-10-04 | 中国航发商用航空发动机有限责任公司 | Operating equipment for check ring in deep cavity space |
| CN115139258B (en) * | 2021-03-30 | 2024-04-16 | 中国航发商用航空发动机有限责任公司 | Operating equipment for check ring in deep cavity space |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2713126A1 (en) * | 1993-12-06 | 1995-06-09 | Bost Garnache Ind | Pliers for elastic rings |
| FR3032897B1 (en) * | 2015-02-25 | 2017-07-28 | Gillet Group | RIPING DEVICE FOR PRECISION ASSEMBLY |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1012132A (en) * | 1949-06-14 | 1952-07-04 | Pistons Self Adjusting S A R L | Improvements to tools such as pliers, and in particular to those intended for retaining rings |
| FR2225546A1 (en) * | 1973-04-12 | 1974-11-08 | Toyoda Chuo Kenkyusho Kk | |
| FR2328669A1 (en) * | 1975-10-20 | 1977-05-20 | Fletcher Terry Co | GLASS CUTTER |
| 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 (en) * | 1984-04-09 | 1985-10-11 | Chavagne Jean | Springs for moving apart the handles of pliers |
-
1993
- 1993-05-08 DE DE9307010U patent/DE9307010U1/de not_active Expired - Lifetime
-
1994
- 1994-03-25 AT AT94104772T patent/ATE168307T1/en not_active IP Right Cessation
- 1994-03-25 EP EP94104772A patent/EP0624433B1/en not_active Expired - Lifetime
- 1994-03-25 DE DE59406436T patent/DE59406436D1/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1012132A (en) * | 1949-06-14 | 1952-07-04 | Pistons Self Adjusting S A R L | Improvements to tools such as pliers, and in particular to those intended for retaining rings |
| FR2225546A1 (en) * | 1973-04-12 | 1974-11-08 | Toyoda Chuo Kenkyusho Kk | |
| FR2328669A1 (en) * | 1975-10-20 | 1977-05-20 | Fletcher Terry Co | GLASS CUTTER |
| 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 (en) * | 1984-04-09 | 1985-10-11 | Chavagne Jean | Springs for moving apart the handles of pliers |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0794039A1 (en) * | 1996-03-01 | 1997-09-10 | Hazet-Werk Hermann Zerver GmbH & Co. KG | Pliers with two arms made from moulded plastic |
| FR2754204A1 (en) * | 1996-10-04 | 1998-04-10 | Bost Garnache Ind | Tool branch manufacturing procedure, e.g. for one half of pliers |
| WO2004078418A1 (en) * | 2003-03-05 | 2004-09-16 | Knipex-Werk C. Gustav Putsch Kg | Circlip pliers |
| EP1652623A3 (en) * | 2004-10-28 | 2006-09-13 | Herramientas Eurotools, S.A. | Pins at the tips of a manual tool |
| ES2297994A1 (en) * | 2004-10-28 | 2008-05-01 | Herramientas Eurotools, S.A. | Pins used on tip of manual tool, such as pliers, has first cone having surface at rear portion with concave curved profile as continuation of recess for connecting generatrix of cylindrical surface to generatrix of conical grippers |
| CN107363747A (en) * | 2017-07-05 | 2017-11-21 | 苏州鼎点盛世电子科技有限公司 | Cutting pliers |
| CN115139258A (en) * | 2021-03-30 | 2022-10-04 | 中国航发商用航空发动机有限责任公司 | Operating equipment for check ring in deep cavity space |
| CN115139258B (en) * | 2021-03-30 | 2024-04-16 | 中国航发商用航空发动机有限责任公司 | Operating equipment for check ring in deep cavity space |
Also Published As
| Publication number | Publication date |
|---|---|
| ATE168307T1 (en) | 1998-08-15 |
| DE9307010U1 (en) | 1993-07-08 |
| EP0624433B1 (en) | 1998-07-15 |
| DE59406436D1 (en) | 1998-08-20 |
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