EP0442511A2 - Allen-key - Google Patents

Allen-key Download PDF

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Publication number
EP0442511A2
EP0442511A2 EP91102124A EP91102124A EP0442511A2 EP 0442511 A2 EP0442511 A2 EP 0442511A2 EP 91102124 A EP91102124 A EP 91102124A EP 91102124 A EP91102124 A EP 91102124A EP 0442511 A2 EP0442511 A2 EP 0442511A2
Authority
EP
European Patent Office
Prior art keywords
key
working end
screw
hexagonal
distance
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Withdrawn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
EP91102124A
Other languages
German (de)
French (fr)
Other versions
EP0442511A3 (en
Inventor
Klaus Amtenbrink
Gerd Erlenkeuser
Jürgen Grossjean
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.)
Wera Werk Hermann Werner GmbH and Co KG
Original Assignee
Wera Werk Hermann Werner 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 Wera Werk Hermann Werner GmbH and Co KG filed Critical Wera Werk Hermann Werner GmbH and Co KG
Publication of EP0442511A2 publication Critical patent/EP0442511A2/en
Publication of EP0442511A3 publication Critical patent/EP0442511A3/en
Withdrawn legal-status Critical Current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
    • B25B15/00—Screwdrivers
    • B25B15/001—Screwdrivers characterised by material or shape of the tool bit
    • B25B15/004—Screwdrivers characterised by material or shape of the tool bit characterised by cross-section
    • B25B15/008—Allen-type keys

Definitions

  • the invention relates to an inner socket hex key according to the preamble of the main claim.
  • Hexagon socket wrenches of this type have been known for a long time.
  • the hexagonal working end of the key should be brought into positive engagement with corresponding recesses of hexagon socket head screw heads. Due to manufacturing tolerances, the internal dimensions of the hexagonal recesses of the screw heads are slightly larger than the external dimensions of the hexagonal working end of the key. Because of these conditions, an exact form fit cannot be achieved.
  • the side surfaces of a recess in a screw head are only covered by edges of the key hexagon.
  • this is disadvantageous because the linear surfaces of the recesses are permanently deformed by this linear load.
  • the recesses of hexagon socket screws with a small standard size are quickly turned round after repeated use, since the attacking edges of the working end penetrate into the screw head material.
  • the object of the invention is to provide a generic inner socket wrench in which these disadvantages are avoided.
  • the radius of curvature of the spherical surface in the circumferential direction corresponds approximately to five times the distance between two opposing surfaces of the key insertion head.
  • An advantageous development of the key provides that its cross section tapers towards the free end of the working end. It is hereby achieved that the distance between two opposite surfaces is at a distance from the end of the working end that exceeds the standard dimension.
  • the conicity angle, the angle between the side surface and the key axis, is preferably 1.5 °.
  • Such a configuration of the hexagon socket wrench allows the key to be inserted into the screw head to a depth at which the surface distance at the working end corresponds to the inner surface distance on the surface of the screw head. In this position, a form fit is almost achieved on the upper edge.
  • the material of the screw head is elastically deformed, so that the initially point-shaped contact point between a conical-spherical side surface of the key and the flat inner surface of the screw head spreads out flat because of the elastic deformability of the material, whereby the contact surface increases with increasing pressure.
  • the conical-spherical design of the working end of the key has the particular advantage that even with already deformed screw heads whose recesses no longer have an exact hexagonal layout, it still leads to a full stop surface.
  • Another advantage that results from the conical design is the clamp connection between screw and wrench. This enables a screw to be screwed into a difficult-to-access thread to be first plugged onto the key, the screw being secured against falling off by the clamping positive connection. The screw can then be screwed tightly into the thread on the key.
  • the reference numeral 1 denotes an inner socket wrench according to the invention, which has a handle 2, to which a shaft 3 connects, to which a hexagonal working end 4 is formed.
  • the edges 6 of the working end 4 extend at an acute angle to the axis of the key 1, which corresponds to the axis of the cylindrical shaft 3.
  • the distance between two opposite surfaces 6 of the plug-in head 4 is less than the distance between two opposite inner surfaces 10 of the hexagon recess 9 of a screw head 8 of a screw 7.
  • the surfaces 6 of the working end 4 are spherical, with the radius of curvature the surfaces 6 corresponds approximately to five times the distance between two opposing surfaces 6.
  • the surfaces 6 correspond to the circumferential surfaces of a cylinder whose radius is the radius of curvature and whose axis is inclined by the angle of the taper to the key axis.
  • the crowning has the same radius of curvature in every cross section, in spite of the conicity of about 1.5 ° here.
  • the working end 4 inserted into the recess 9 of a screw head 8 is acted upon in a clockwise direction by a torque.
  • the torque is not transmitted via a point of contact of the edge 5 with the surface 10, but rather via a surface of contact of the width b of the surfaces 6 and 10.
  • the width of the surface b is greater, the greater the torque applied.
  • FIG. 3 shows the conical working end 4, with the surfaces 6 being delimited by edges 5 tapering towards one another.
  • the mutually parallel surfaces 10 of an insertion opening 9 are spaced slightly larger than the standard dimension.
  • a hexagon socket wrench designed in this way can then be inserted with its screw insertion head 4 into the insertion opening 9 until the distance between two opposite surfaces 6 on the screw surface 12 corresponds exactly to the distance between two opposite surfaces 10.
  • the upper edges of the surfaces 10 enclose the working end almost in a form-fitting manner.
  • a further action on the screw insertion head in the axial direction causes the surfaces 6 of the working end 4 to jam with the inner surfaces 10 of the insertion opening 9.
  • a screw 7 is secured against falling on the key 1.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)

Abstract

The invention relates to an Allen-key, in which, in particular to prevent turning round, the hexagon surfaces (6) are, at least in the region of the working end (4), of crowned design in the hexagon circumferential direction.

Description

Die Erfindung betrifft einen Innenbuchsensechskantschlüssel gemäß Gattungsbegriff des Hauptanspruchs.The invention relates to an inner socket hex key according to the preamble of the main claim.

Innenbuchsensechskantschlüssel dieser Art sind seit langem bekannt. Bei der Anwendung dieser Schlüssel soll das sechskantige Arbeitsende des Schlüssels mit entsprechenden Aussparungen von Innenbuchsensechskantschraubenköpfen in Formschluß gebracht werden. Aufgrund von Fertigungstoleranzen ist das Innenmaß der hexagonalen Aussparungen der Schraubenköpfe geringfügig größer als das Außenmaß des Sehcskantarbeitsendes des Schlüssels. Aufgrund dieser Gegebenheiten ist ein exakter Formschluß nicht erzielbar. Bei der Ausübung eines Drehmomentes auf den Schlüssel werden die Seitenflächen einer Aussparung eines Schraubenkopfes nur von Kanten des Schlüsselsechskants belagtet. Dieses ist jedoch von Nachteil, da durch diese linienförmige Belastung die Seitenflächen der Aussparungen dauerhaft deformiert werden. Insbesondere die Aussparungen von Innenbuchsensechskantschrauben mit kleinem Normmaß werden so nach mehrmaliger Benutzung schnell rundgedreht, da die angreifenden Kanten des Arbeitsendes in das Schraubenkopfmaterial eindringen.Hexagon socket wrenches of this type have been known for a long time. When using these keys, the hexagonal working end of the key should be brought into positive engagement with corresponding recesses of hexagon socket head screw heads. Due to manufacturing tolerances, the internal dimensions of the hexagonal recesses of the screw heads are slightly larger than the external dimensions of the hexagonal working end of the key. Because of these conditions, an exact form fit cannot be achieved. When a torque is exerted on the key, the side surfaces of a recess in a screw head are only covered by edges of the key hexagon. However, this is disadvantageous because the linear surfaces of the recesses are permanently deformed by this linear load. In particular, the recesses of hexagon socket screws with a small standard size are quickly turned round after repeated use, since the attacking edges of the working end penetrate into the screw head material.

Aufgabe der Erfindung ist es, einen gattungsgemäßen Innenbuchsensechskantschlüssel anzugeben, bei dem diese Nachteile vermieden werden.The object of the invention is to provide a generic inner socket wrench in which these disadvantages are avoided.

Gelöst wird diese Aufgabe durch die kennzeichnenden Merkmale des Hauptanspruchs. Die Unteransprüche stellen vorteilhafte Weiterbildungen dar.This task is solved by the characteristic features of the main claim. The subclaims represent advantageous developments.

Zufolge derartiger Ausgestaltung ist ein Innenbuchsen sechskantschlüssel gegeben, bei dem die dauerhafte Deformierung der Innenflächen des Schraubenkopfes erheblich vermindert wird. Durch die Balligkeit der Flächen des Arbeitsendes des Schlüssels ist unter Belastung eine flächige Anlage zwischen Innenfläche des Schraubenkopfes und Außenfläche des Schlüssels gewährleistet. Ein schädliches Eingraben der Kanten des Schlüsselsechskants wird wirksam verhindert. Außenfläche des Schlüssels und Innenfläche der Schraubenkopfaussparung berühren sich zunächst entlang der Tangentiallinie der beiden Flächen. Der durch ein angesetztes Drehmoment ausgeübte Druck führt im Wege einer elastischen Verformung zu einer satten Anlagefläche, die sich mit steigendem Drehmoment vergrößert. Der Krümmungsmittelpunkt der Sechskantflächen liegt bevorzugt außerhalb des Sechskantquerschnitts. Der Krümmungsradius der in Umfangrichtung balligen Fläche·entspricht in etwa dem fünffachen des Abstandes zweier gegenüberliegender Flächen des Schlüsseleinsteckkopfes. Eine vorteilhafte Weiterbildung des Schlüssels sieht vor, daß sein Querschnitt zum freien Ende des Arbeitsendes hin konisch zuläuft. Hierdurchwird erzielt, daß der Abstand zweier gegenüberliegender Flächen an vom Ende des Arbeitsendes entfernten Stellen einen Abstand aufweist, der das Normmaß Übertrifft. Der Konizitätswinkel, der Winkel zwischen Seitenfläche und Schlüsselachse, beträgt vorzugsweise 1,5°. Eine solche Ausgestaltung des Innenbuchsensechskantschlüssels erlaubt ein Einstecken des Schlüssels in den Schraubkopf bis zu einer Tiefe, bei der der Flächenabstand im Arbeitsende dem Innenflächenabstand an der Oberfläche des Schraubenkopfes entspricht. In dieser Stellung ist an der Oberkante nahezu ein Formschluß erzielt. Bei einer Belastung des Schlüssels im Wege einer Drehbewegung, wird das Material des Schraubenkopfes elastisch deformiert, so daß die zunächst punktförmige Berührungsstelle zwischen einer konisch-balligen Seitenfläche des Schlüssels und der ebenen Innenfläche des Schraubenkopfes sich wegen der elastischen Verformbarkeit des Materials flächig ausbreitet, wodurchdie Anlagefläche min steigendem Druck ansteigt. Die konisch-ballige Ausgestaltung des Arbeitsendes des Schlüssels hat insbesondere den Vorteil, daß auch bei bereits deformierten Schraubköpfe, deren Aussparungen keinen exakten Sechskantgrundriß mehr aufweisen, es trotzdem noch zu einer satten Anschlagfläche führt. Ein weiterer Vorteil, der sich aus der konischen Ausgestaltung ergibt, ist die Klemmverbindung zwischen Schraube und Schraubenschlüssel. Hierdurch wird es ermöglicht, eine in ein schwer zugängliches Gewinde einzuschraubende Schraube zunächst auf den Schlüssel auf zustecken, wobei die Schraube durch den klemmenden Formschluß gegen Herunterfallen gesichert ist. Die Schraube kann dann auf dem Schlüssel fest sitzend in das Gewinde eingeschraubt werden.As a result of such a configuration, there is an inner socket hexagon wrench in which the permanent deformation the inner surface of the screw head is significantly reduced. Due to the crowning of the surfaces of the working end of the key, a flat contact between the inner surface of the screw head and the outer surface of the key is ensured under load. Damaging digging of the edges of the key hexagon is effectively prevented. The outer surface of the key and the inner surface of the screw head recess first touch along the tangent line of the two surfaces. The pressure exerted by an applied torque leads to a full contact surface by means of an elastic deformation, which increases with increasing torque. The center of curvature of the hexagonal surfaces is preferably outside the hexagonal cross section. The radius of curvature of the spherical surface in the circumferential direction corresponds approximately to five times the distance between two opposing surfaces of the key insertion head. An advantageous development of the key provides that its cross section tapers towards the free end of the working end. It is hereby achieved that the distance between two opposite surfaces is at a distance from the end of the working end that exceeds the standard dimension. The conicity angle, the angle between the side surface and the key axis, is preferably 1.5 °. Such a configuration of the hexagon socket wrench allows the key to be inserted into the screw head to a depth at which the surface distance at the working end corresponds to the inner surface distance on the surface of the screw head. In this position, a form fit is almost achieved on the upper edge. When the key is loaded by means of a rotary movement, the material of the screw head is elastically deformed, so that the initially point-shaped contact point between a conical-spherical side surface of the key and the flat inner surface of the screw head spreads out flat because of the elastic deformability of the material, whereby the contact surface increases with increasing pressure. The conical-spherical design of the working end of the key has the particular advantage that even with already deformed screw heads whose recesses no longer have an exact hexagonal layout, it still leads to a full stop surface. Another advantage that results from the conical design is the clamp connection between screw and wrench. This enables a screw to be screwed into a difficult-to-access thread to be first plugged onto the key, the screw being secured against falling off by the clamping positive connection. The screw can then be screwed tightly into the thread on the key.

Ein Ausführungsbeispiel der Erfindung wird anhand der Zeichnungen detailliert erzläutert. Es zeigen:

Fig. 1
ein Ausführungsbeispiel eines erfindungsgemäßen Innenbuchsensechskantschlüssel mit einer passenden Schraube,
Fig. 2
einen Querschnitt eines Arbeitsendes,eingesteck t in einen Schraubenkopf,
Fig. 3
einen Längsschnitt gemäß Fig. 2,
An embodiment of the invention is explained in detail with reference to the drawings. Show it:
Fig. 1
An embodiment of an Allen key according to the invention with a suitable screw,
Fig. 2
a cross section of a working end, inserted t in a screw head,
Fig. 3
3 shows a longitudinal section according to FIG. 2,

Mit dem Bezugszeichen 1 ist ein erfindungsgemäßer Innenbuchsensechskantschlüssel bezeichnet, der einen Griff 2 aufweist, an dem sich ein Schaft 3 anschließt, an den ein sechseckiges Arbeitsende 4 angeformt ist. Die Kanten 6 des Arbeitsendes 4 erstrecken dich in spitzem Winkel zur Achse des Schlüssels 1, die der Achse des zylinderförmigen Schaftes 3 entspricht. Wie insbesondere Fig. 2 zeigt, ist der Abstand zweier gegenüberliegender Flächen 6 des Einsteckkopfes 4 geringer als der Abstand zweier gegenüberliegenden Innenflächen 10 der Sechskant-Aussparung 9 eines Schraubenkopfes 8 einer Schraube 7. Die Flächen 6 des Arbeitsendes 4 sind ballig ausgeformt, wobei der Krümmungsradius der Flächen 6 etwa dem fünffachen des Abstandes zweier sich gegenüberliegender Flächen 6 entspricht. Die Flächen 6 entsprechen dabei Umfangsflächen eines Zylinders, dessen Radius der Krümmungsradius ist, und dessen Achse um den Winkel der Konizität zur Schlüsselachse geneigt ist. Hierdurch hat trotz Konizität von hier etwa 1,5° die Balligkeit in jedem Querschnitt denselben Krümmungsradius.The reference numeral 1 denotes an inner socket wrench according to the invention, which has a handle 2, to which a shaft 3 connects, to which a hexagonal working end 4 is formed. The edges 6 of the working end 4 extend at an acute angle to the axis of the key 1, which corresponds to the axis of the cylindrical shaft 3. As shown in FIG. 2 in particular, the distance between two opposite surfaces 6 of the plug-in head 4 is less than the distance between two opposite inner surfaces 10 of the hexagon recess 9 of a screw head 8 of a screw 7. The surfaces 6 of the working end 4 are spherical, with the radius of curvature the surfaces 6 corresponds approximately to five times the distance between two opposing surfaces 6. The surfaces 6 correspond to the circumferential surfaces of a cylinder whose radius is the radius of curvature and whose axis is inclined by the angle of the taper to the key axis. As a result, the crowning has the same radius of curvature in every cross section, in spite of the conicity of about 1.5 ° here.

In Fig. 2 ist das in die Aussparung 9 eines Schraubenkopfes 8 eingesteckte Arbeitsende 4 im Uhrzeigersinn durch ein Drehmoment beaufschlagt. Das Drehmoment wird nicht über einen Berührungspunkt der Kante 5 mit der Fläche 10 übertragen, sondern über eine Berührungsfläche der Breite b der Fläche 6 und 10. Die Breite der Fläche b ist dabei umso größer, je größer dar aufgewandte Drehmoment ist.2, the working end 4 inserted into the recess 9 of a screw head 8 is acted upon in a clockwise direction by a torque. The torque is not transmitted via a point of contact of the edge 5 with the surface 10, but rather via a surface of contact of the width b of the surfaces 6 and 10. The width of the surface b is greater, the greater the torque applied.

Die auf die Flächen 10 wirkenden Drücke sind damit erheblich geringer als wenn - wie bei herkömmlichen Schlüsseln üblich - die Flächen 6 als ebenen Flächen ausgestaltet wären, wobei dann die Kanten 5 sich in die Flächen 10 eindrücken würden.The pressures acting on the surfaces 10 are thus considerably lower than if - as was customary with conventional keys - the surfaces 6 were designed as flat surfaces, the edges 5 then being pressed into the surfaces 10.

Fig. 3 zeigt das konische Arbeitsende 4, wobei bei die Flächen 6 von spitz zueinander zulaufenden Kanten 5 begrenzt werden. Am Fuß 11 des Arbeitsendes 4 kann der Abstand zweier gegenüberliegender Flächen 6, etwa dem Normmaß des Schlüssels entsprechen. Die zueinander parallel verlaufenden Flächen 10 einer Einstecköffnung 9 sind mit einem Maß geringfügig größer als das Normmaß beabstandet. Ein so ausgestalteter Innenbuchsensechskantschlüssel kann dann mit seinem Schraubeneinsteckkopf 4 so weit in die Einstecköffnung 9 eingeschoben werden, bis der Abstand zweier gegenüberliegender Flächen 6 an der Schraubenoberfläche 12 exakt dem Abstand zweier gegenüberliegender Flächen 10 entspricht. In dieser Position schließen die Oberkanten der Flächen 10 nahezu formschlüssig das Arbeitsende ein. Ein weiteres Beaufschlagen des Schraubeneinsteckkopfes in axialer Richtung bewirkt ein Verklemmen der Flächen 6 des Arbeitsendes 4 mit den Innenflächen 10 der Einstecköffnung 9. In dieser Position ist eine Schraube 7 gegen Herunterfallen am Schlüssel 1 gesichert.3 shows the conical working end 4, with the surfaces 6 being delimited by edges 5 tapering towards one another. At the foot 11 of the working end 4, the distance between two opposite surfaces 6, such as the Correspond to the standard size of the key. The mutually parallel surfaces 10 of an insertion opening 9 are spaced slightly larger than the standard dimension. A hexagon socket wrench designed in this way can then be inserted with its screw insertion head 4 into the insertion opening 9 until the distance between two opposite surfaces 6 on the screw surface 12 corresponds exactly to the distance between two opposite surfaces 10. In this position, the upper edges of the surfaces 10 enclose the working end almost in a form-fitting manner. A further action on the screw insertion head in the axial direction causes the surfaces 6 of the working end 4 to jam with the inner surfaces 10 of the insertion opening 9. In this position, a screw 7 is secured against falling on the key 1.

Die in der vorstehenden Beschreibung, der Zeichnung und den Ansprüchen offenbarten Merkmale der Erfindung können sowohl einzeln als auch in beliebiger Kombination für die Verwirklichung der Erfindung von Bedeutung sein. Alle offenbarten Merkmale sind erfindungswesentlich. In die Offenbarung der Anmeldung wird hiermit auch der Offenbarungsinhalt der zugehörigen/beigefügten Prioritätsunterlagen (Abschrift der Voranmeldung) vollinhaltlich mit einbezogen.The features of the invention disclosed in the above description, the drawing and the claims can be of importance both individually and in any combination for the implementation of the invention. All disclosed features are essential to the invention. The disclosure content of the associated / attached priority documents (copy of the prior application) is hereby also included in full in the disclosure of the application.

Claims (5)

Innenbuchsensechskantschlüssel, dadurch gekennzeichnet, daß die Sechskantflächen (6) zumindest im Bereich des Arbeitsendes (4) in Sechskant-Umfangsrichtung ballig ausgestaltet sind.Inner socket wrench, characterized in that the hexagonal surfaces (6) are spherical at least in the area of the working end (4) in the hexagonal circumferential direction. Innennbuchsenseckskantschlüssel nach Anspruch 1, dadurch gekennzeichnet, daß die Krümmungs-Mittelpunkte der Flächen (6) außerhalb des Sechskantquerschnitts liegen.Inner socket wrench according to claim 1, characterized in that the centers of curvature of the surfaces (6) lie outside the hexagonal cross section. Innenbuchsensechskantschlüssel nach einem oder mehreren vorhergehenden Ansprüchen, dadurch gekennzeichnet, daß der Krümmungsradius der balligen Flächen (6) etwa dem fünffachen Abstand zweier gegenüberliegender Flächen (6) entspricht.Allen key according to one or more of the preceding claims, characterized in that the radius of curvature of the spherical surfaces (6) corresponds approximately to five times the distance between two opposing surfaces (6). Innenbuchsensechskantschlüssel nach einem oder mehreren der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß der Querschnitt zum freien Ende des Arbeitsendes hin konisch zuläuft.Inner socket wrench according to one or more of the preceding claims, characterized in that the cross section tapers towards the free end of the working end. Innenbuchsensechskantschlüssel nach einem oder mehreren der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß der Konizitätswinkel etwa 1,5° zur Schlüsselaches beträgt.Allen key according to one or more of the preceding claims, characterized in that the conicity angle is approximately 1.5 ° to the key axis.
EP19910102124 1990-02-14 1991-02-14 Allen-key Withdrawn EP0442511A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE9001707U DE9001707U1 (en) 1990-02-14 1990-02-14 Internal socket hex key
DE9001707U 1990-02-14

Publications (2)

Publication Number Publication Date
EP0442511A2 true EP0442511A2 (en) 1991-08-21
EP0442511A3 EP0442511A3 (en) 1992-04-15

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DE (1) DE9001707U1 (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0512248A1 (en) * 1991-05-02 1992-11-11 WERA WERK HERMANN WERNER GmbH & CO. Screwing tool, especially screw driver
DE9209107U1 (en) * 1992-07-07 1992-11-12 Aoyama Seisakusho Co., Ltd., Nagoya, Aichi SCREW BOLT AND SOCKET WRENCH
WO2002026448A2 (en) * 2000-09-27 2002-04-04 Snap-On Technologies, Inc. Retention socket geometry variations
FR2916820A3 (en) * 2007-06-01 2008-12-05 Memometal Technologies Soc Par Screw i.e. osteosynthesis screw, actuating device for use during surgery of e.g. hand, has end fitting with manipulation part connected to another part by determined divisible zone for controlling maximum tightening torque
USD888526S1 (en) 2018-09-04 2020-06-30 Snap-On Incorporated Hex driver
US10960520B2 (en) 2018-09-04 2021-03-30 Snap-On Incorporated Hex driver

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2017193022A (en) * 2016-04-21 2017-10-26 三菱重工業株式会社 Key wrench

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US3658105A (en) * 1970-05-04 1972-04-25 John Burt Fastener driving arrangement
FR2383350A1 (en) * 1977-03-07 1978-10-06 Textron Inc SOCKET HEAD FIXING ELEMENT
GB2048738A (en) * 1979-05-10 1980-12-17 Textron Inc Fastener and driver assembly
DE3120216A1 (en) * 1981-05-21 1982-12-09 Fa. Fedor Ulisch, 5630 Remscheid Radiator spud wrench
US4503737A (en) * 1983-04-11 1985-03-12 Digiovanni Donald Threaded fastener removing tool
US4625598A (en) * 1985-05-10 1986-12-02 Frank Wolfram Positive engagement screw driver tool
DE3644449A1 (en) * 1986-12-24 1988-07-07 Werner Hermann Wera Werke Screwdriver

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DE3206494A1 (en) * 1982-02-24 1983-09-08 Rappold, Manfred, Dr., 7117 Bretzfeld HEAD AND KEY TRAIN FOR A SCREW

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Publication number Priority date Publication date Assignee Title
US3658105A (en) * 1970-05-04 1972-04-25 John Burt Fastener driving arrangement
FR2383350A1 (en) * 1977-03-07 1978-10-06 Textron Inc SOCKET HEAD FIXING ELEMENT
GB2048738A (en) * 1979-05-10 1980-12-17 Textron Inc Fastener and driver assembly
DE3120216A1 (en) * 1981-05-21 1982-12-09 Fa. Fedor Ulisch, 5630 Remscheid Radiator spud wrench
US4503737A (en) * 1983-04-11 1985-03-12 Digiovanni Donald Threaded fastener removing tool
US4625598A (en) * 1985-05-10 1986-12-02 Frank Wolfram Positive engagement screw driver tool
DE3644449A1 (en) * 1986-12-24 1988-07-07 Werner Hermann Wera Werke Screwdriver

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0512248A1 (en) * 1991-05-02 1992-11-11 WERA WERK HERMANN WERNER GmbH & CO. Screwing tool, especially screw driver
US5284075A (en) * 1991-05-02 1994-02-08 Wera Werk Hermann Werner Gmbh & Co. Screwing tool, particularly a screwdriver
DE9209107U1 (en) * 1992-07-07 1992-11-12 Aoyama Seisakusho Co., Ltd., Nagoya, Aichi SCREW BOLT AND SOCKET WRENCH
WO2002026448A2 (en) * 2000-09-27 2002-04-04 Snap-On Technologies, Inc. Retention socket geometry variations
WO2002026448A3 (en) * 2000-09-27 2002-06-27 Snap On Tech Inc Retention socket geometry variations
US6626067B1 (en) 2000-09-27 2003-09-30 Snap-On Technologies, Inc. Retention socket geometry variations
FR2916820A3 (en) * 2007-06-01 2008-12-05 Memometal Technologies Soc Par Screw i.e. osteosynthesis screw, actuating device for use during surgery of e.g. hand, has end fitting with manipulation part connected to another part by determined divisible zone for controlling maximum tightening torque
USD888526S1 (en) 2018-09-04 2020-06-30 Snap-On Incorporated Hex driver
US10960520B2 (en) 2018-09-04 2021-03-30 Snap-On Incorporated Hex driver

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DE9001707U1 (en) 1991-06-13

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