EP0908274B1 - Socket prolongation - Google Patents

Socket prolongation Download PDF

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Publication number
EP0908274B1
EP0908274B1 EP98117961A EP98117961A EP0908274B1 EP 0908274 B1 EP0908274 B1 EP 0908274B1 EP 98117961 A EP98117961 A EP 98117961A EP 98117961 A EP98117961 A EP 98117961A EP 0908274 B1 EP0908274 B1 EP 0908274B1
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EP
European Patent Office
Prior art keywords
pressure
insertion part
transmitting element
receiving part
pressure transmission
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
EP98117961A
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German (de)
French (fr)
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EP0908274A1 (en
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
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Filing date
Publication date
Priority claimed from DE1997144865 external-priority patent/DE19744865C2/en
Application filed by Hazet Werk Hermann Zerver GmbH and Co KG filed Critical Hazet Werk Hermann Zerver GmbH and Co KG
Priority to SI9830151T priority Critical patent/SI0908274T1/en
Publication of EP0908274A1 publication Critical patent/EP0908274A1/en
Application granted granted Critical
Publication of EP0908274B1 publication Critical patent/EP0908274B1/en
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
    • B25B23/00—Details of, or accessories for, spanners, wrenches, screwdrivers
    • B25B23/0007—Connections or joints between tool parts
    • B25B23/0035—Connection means between socket or screwdriver bit and tool
    • 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
    • B25B23/00—Details of, or accessories for, spanners, wrenches, screwdrivers
    • B25B23/0007—Connections or joints between tool parts
    • B25B23/0014—Screwdriver- or wrench-heads provided with cardan joints or the like

Definitions

  • the invention relates to a socket wrench extension with a polygonal, Insert part with wrench flats on one and one accordingly designed receiving part at the other end and with a joint between Receiving part and plug-in part, the plug-in part with one of the Key surfaces partially protruding locking element is provided with an axially guided in the plug-in pressure transmission element, one of which The end of the button or button-shaped design of the push button Pressure transmission element is used and the other end part of one Mechanism to implement a directed towards the male part Axial movement of the pressure transmission element in an outward movement of the Locking element is.
  • the task of the mentioned locking element is, under spring tension in a appropriately designed recess of that receiving part to snap into which insert part of the socket wrench extension is used. In the As a rule, this is the receiving part of the socket wrench insert.
  • Locking the locking element into the recess should make it too easy to separate of the two tool parts should be prevented, these should only be used a certain axial force can be connected and later released again. nevertheless unintentional loosening can often occur, for example if the Socket wrench extension with a socket wrench insert locked in slightly tilted alignment can be removed from a screw or nut got to.
  • a socket wrench extension with the features mentioned above is out WO 95/08720 A1 known.
  • the pressure transmission element is included an actuating element in the form of a pivot lever or a Slider connected, using the pressure transmission element from a locking position to an unlocking point or from one less can be transferred into a more secure position for the spherical locking element is. It is therefore necessary to actuate the actuating element separately, to bring about the desired position of the locking element.
  • Socket wrench extensions for example in car repair shops, is any additional manual handling when locking and unlocking the Locking element unsatisfactory.
  • the invention has for its object to provide a socket wrench extension with improved hold of the inserted socket wrench insert and comparatively simple handling.
  • a pivotally mounted element of the joint on the plug-in part has an eccentric pressure transmission surface with respect to the axis of rotation, against which the pin-shaped or button-shaped end of the pressure transmission element rests, the sets the largest width of the eccentric when the receiving part and the insert part are arranged in a straight alignment to one another.
  • the socket wrench extension according to the invention is with a joint between Insert part and receiving part be provided, in particular one on all sides swiveling universal joint.
  • Socket wrench extension is only secondary to the extension effect, primarily it is about providing an angle-attachable Socket wrench connection for working in places that are not in the longitudinal direction are reachable.
  • a universal joint is said to be Socket extension can be viewed in the sense of this invention.
  • the eccentric design of the joint allows the Insert part with the receiving part of a key attachment by simple Swiveling the extension.
  • the socket wrench extension according to the invention is essential Improved hold of the inserted socket wrench insert on the socket wrench extension achieved.
  • a pressure transmission element is guided, one end of which is used as a pressure transmission element serves and the other end part of a mechanism with which the movement of the pressure transmission element in a Outward movement of the locking element is transferred.
  • the other end of the pressure transmission element is provided with a bevel that abuts the radially guided locking element.
  • a Spring proposed, which one directed towards the pin or key end Exerts pressure force on the pressure transmission element is preferably supported the spring with one end on the male part and the other end on the pressure transmission element.
  • the Socket wrench extension with a universal joint between the receiving part and Insert part that has any angle between 0 and 90 ° Receiving part and insert part enables.
  • the single figure shows a socket wrench extension in a sectional view in the form of a universal joint.
  • the universal joint connection that can be used as part of a socket wrench system consists of a receiving part 1 with a molded therein Inner square, a plug-in part 2 with an outer square formed thereon as well u. a. a gimbal element 16, which receiving part 1 and insert part 2 articulated connects with each other.
  • the square surfaces of receiving part 1 and insert part 2 correspond to the internationally customary and standardized dimensions for socket wrench systems.
  • the plug-in part 2 is provided with a locking element 4 in Shape of a sphere.
  • the locking element 4 When inserting the outer square 5 in one Inner square, as he z. B. is provided in the receiving part 1, the locking element 4 initially pushed back in its radial bore 6 and can then in a recess in the outer square provided for this purpose engage. Such a recess is in the receiving part 1 by a corresponding hole 7 realized.
  • the spherical locking element is pushed back 4 in the radial bore 6 against the force of an arranged there Feather. This is also the force with which the outer square 5 is held in an appropriate square, depending on the spring force.
  • spherical locking element 4 not directly a spring, but a Pressure transmission element 8 in the form of a short rod or a pin on.
  • the pressure transmission element 8 is in a longitudinal bore 9 of the Inserted part 2 out and has at one end a slope 10, which rests on the inside of the spherical locking element 4.
  • the other End 14 is shaped like a button, and its back serves as a contact surface for a spring acting on pressure 11.
  • the spring 11 is arranged so that it exerts a force on the pressure transmission element 8, which endeavors to the pressure transmission element 8 away from the insertion part 2 and in the direction to move the gimbal 16.
  • the cardan element 16 which has a first bolt 17 with the plug-in part 2, and articulated with the receiving part 1 via a second bolt 18 connected, has one with respect to the axis of rotation 19 of the bolt 17 an eccentric pressure transmission surface 20.
  • the pressure transfer area 20 lies on the button-shaped end 14 of the pressure transmission element 8, whereby, as the drawing shows, the eccentrically designed pressure transmission surface 20 there the greatest distance from the axis of rotation 19, where the button-shaped end 14 at a straight mutual alignment of receiving part 1 and insert part 2 is present.
  • the eccentrically designed contour of the pressure transmission surface 20 is so chosen that the release of the locking element 4 takes place only when, as shown in the drawing, receiving part and insert part strong be angled towards each other.

Abstract

The device has a polygonal insert part (2) with an axially held pressure transmission element (8) with one journal or key-shaped end (14) for its actuation. The other end forms part of a mechanism to translate an axial movement acting in direction of the insert part, into an outward movement of a locking part (4). The other end of the pressure transmission element has a slope (10) engaging on the radially guided locking part.

Description

Die Erfindung betrifft eine Steckschlüsselverlängerung mit einem mehrkantigen, Schlüsselflächen aufweisenden Einsteckteil am einen und einem entsprechend gestalteten Aufnahmeteil am anderen Ende und mit einem Gelenk zwischen Aufnahmeteil und Einsteckteil, wobei das Einsteckteil mit einem aus einer der Schlüsselflächen teilweise heraustretenden Arretierelement versehen ist, mit einem axial in dem Einsteckteil geführten Druckübertragungslement, dessen eines Ende zapfen- oder tastenförmig gestaltet der Druckbetätigung des Druckübertragungselementes dient und dessen anderes Ende Bestandteil eines Mechanismus zur Umsetzung einer in Richtung auf das Einsteckteil gerichteten Axialbewegung des Druckübertragungselementes in eine Auswärtsbewegung des Arretierelementes ist.The invention relates to a socket wrench extension with a polygonal, Insert part with wrench flats on one and one accordingly designed receiving part at the other end and with a joint between Receiving part and plug-in part, the plug-in part with one of the Key surfaces partially protruding locking element is provided with an axially guided in the plug-in pressure transmission element, one of which The end of the button or button-shaped design of the push button Pressure transmission element is used and the other end part of one Mechanism to implement a directed towards the male part Axial movement of the pressure transmission element in an outward movement of the Locking element is.

Aufgabe des genannten Arretierelementes ist es, unter Federspannung in eine entsprechend gestaltete Ausnehmung jenes Aufnahmeteiles einzurasten, in welches das Einsteckteil der Steckschlüsselverlängerung eingesetzt wird. In der Regel ist dies das Aufnahmeteil des Steckschlüsseleinsatzes. Infolge des Einrastens des Arretierelementes in die Ausnehmung soll ein zu leichtes Trennen der beiden Werkzeugteile verhindert werden, diese sollen nur unter Anwendung einer gewissen axialen Kraft verbindbar und später wieder lösbar sein. Gleichwohl kann es oft zu einem unbeabsichtigten Lösen kommen, etwa wenn die Steckschlüsselverlängerung mit einem daran arretierten Steckschlüsseleinsatz in leicht verkanteter Ausrichtung von einer Schraube oder Mutter abgezogen werden muß. Hierbei können sich zwischen Steckschlüsseleinsatz und Schraube bzw. The task of the mentioned locking element is, under spring tension in a appropriately designed recess of that receiving part to snap into which insert part of the socket wrench extension is used. In the As a rule, this is the receiving part of the socket wrench insert. As a result of Locking the locking element into the recess should make it too easy to separate of the two tool parts should be prevented, these should only be used a certain axial force can be connected and later released again. nevertheless unintentional loosening can often occur, for example if the Socket wrench extension with a socket wrench insert locked in slightly tilted alignment can be removed from a screw or nut got to. Here, between the socket wrench insert and screw or

Mutter Haftreibungskräfte ergeben, die größer als die Arretierkräfte des federbelasteten Arretierelementes sind.Mother stiction forces that are greater than the locking forces of the are spring-loaded locking element.

Eine Steckschlüsselverlängerung mit den eingangs genannten Merkmalen ist aus der WO 95/08720 A1 bekannt. Hierbei ist das Druckübertragungselement mit einem Betätigungselement etwa in Gestalt eines Schwenkhebels oder eines Schiebers verbunden, unter dessen Verwendung das Druckübertragungselement von einer Verriegelungsstellung in eine Entriegelungsstelle bzw. von einer weniger in eine stärker sichernde Stellung für das kugelförmige Arretierelement überführbar ist. Erforderlich ist daher eine gesonderte Betätigung des Betätigungselements, um die jeweils gewünschte Stellung des Arretierelements herbeizuführen. Im Hinblick auf den oftmals in hektischen Situationen erfolgenden Einsatz von Steckschlüsselverlängerungen, etwa in KFZ-Reparaturwerkstätten, ist jedoch jedwede zusätzliche manuelle Handhabung beim Ver- und Entriegeln des Arretierelementes unbefriedigend.A socket wrench extension with the features mentioned above is out WO 95/08720 A1 known. The pressure transmission element is included an actuating element in the form of a pivot lever or a Slider connected, using the pressure transmission element from a locking position to an unlocking point or from one less can be transferred into a more secure position for the spherical locking element is. It is therefore necessary to actuate the actuating element separately, to bring about the desired position of the locking element. in the With regard to the often used in hectic situations Socket wrench extensions, for example in car repair shops, is any additional manual handling when locking and unlocking the Locking element unsatisfactory.

Der Erfindung liegt die Aufgabe zugrunde, eine Steckschlüsselverlängerung mit verbessertem Halt des angesetzten Steckschlüsseleinsatzes und vergleichsweise einfacher Handhabung zu schaffen.The invention has for its object to provide a socket wrench extension with improved hold of the inserted socket wrench insert and comparatively simple handling.

Zur Lösung dieser Aufgabe wird bei einer Steckschlüsselverlängerung der eingangs genannten Art vorgeschlagen, daß ein an dem Einsteckteil schwenkbar gelagertes Element des Gelenks eine bezüglich der Drehachse mit einem Exzenter versehene Druckübertragungsfläche aufweist, an der das zapfen- oder tastenförmige Ende des Druckübertragungselementes anliegt, wobei sich die größte Weite des Exzenters dann einstellt, wenn Aufnahmeteil und Einsteckteil in gerader Ausrichtung zueinander angeordnet sind.To solve this problem, it is proposed in a socket wrench extension of the type mentioned that a pivotally mounted element of the joint on the plug-in part has an eccentric pressure transmission surface with respect to the axis of rotation, against which the pin-shaped or button-shaped end of the pressure transmission element rests, the sets the largest width of the eccentric when the receiving part and the insert part are arranged in a straight alignment to one another.

Die erfindungsgemäße Steckschlüsselverlängerung ist mit einem Gelenk zwischen Einsteckteil und Aufnahmeteil versehen sein, insbesondere einem allseitig schwenkbaren Kardangelenk. Bei einer mit einem solchen Gelenk versehenen Steckschlüsselverlängerung ist der Verlängerungseffekt nur sekundär angestrebt, in erster Linie geht es um die Bereitstellung einer unter einem Winkel ansetzbaren Steckschlüsselverbindung für das Arbeiten an Stellen, die in Längsrichtung nicht erreichbar sind. Insofern soll auch ein Kardangelenk als Steckschlüsselverlängerung im Sinne dieser Erfindung angesehen werden.The socket wrench extension according to the invention is with a joint between Insert part and receiving part be provided, in particular one on all sides swiveling universal joint. In one with such a joint Socket wrench extension is only secondary to the extension effect, primarily it is about providing an angle-attachable Socket wrench connection for working in places that are not in the longitudinal direction are reachable. In this respect, a universal joint is said to be Socket extension can be viewed in the sense of this invention.

Die exzentrische Ausgestaltung des Gelenks erlaubt ein Verriegeln des Einsteckteils mit dem Aufnahmeteil eines Schlüsselaufsatzes durch einfaches Verschwenken der Verlängerung.The eccentric design of the joint allows the Insert part with the receiving part of a key attachment by simple Swiveling the extension.

Mit der erfindungsgemäßen Steckschlüsselverlängerung wird ein wesentlich verbesserter Halt des angesetzten Steckschlüsseleinsatzes an der Steckschlüsselverlängerung erzielt. In dem Einsteckteil der Steckschlüsselverlängerung ist ein Druckübertragungselement geführt, dessen eines Ende als Druckübertragungselement dient und dessen anderes Ende Bestandteil eines Mechanismus ist, mit dem die Bewegung des Druckübertragungselementes in eine Auswärtsbewegung des Arretierelementes überführt wird. In einer Ausgestaltung wird zur Realisierung dieser Bewegungsübertragung vorgeschlagen, daß das andere Ende des Druckübertragungselementes mit einer Schräge versehen ist, die an dem radial geführten Arretierelement anliegt.With the socket wrench extension according to the invention is essential Improved hold of the inserted socket wrench insert on the socket wrench extension achieved. In the plug-in part of the socket wrench extension a pressure transmission element is guided, one end of which is used as a pressure transmission element serves and the other end part of a mechanism with which the movement of the pressure transmission element in a Outward movement of the locking element is transferred. In one embodiment is proposed for the realization of this movement transfer that the other end of the pressure transmission element is provided with a bevel that abuts the radially guided locking element.

Zur Erzielung einer Rückstellkraft wird gemäß einer weiteren Ausgestaltung eine Feder vorgeschlagen, welche eine auf das Zapfen- oder Tastenende hin gerichtete Druckkraft auf das Druckübertragungselement ausübt Vorzugsweise stützt sich die Feder mit ihrem einen Ende an dem Einsteckteil und mit ihrem anderen Ende an dem Druckübertragungselement ab.According to a further embodiment, a Spring proposed, which one directed towards the pin or key end Exerts pressure force on the pressure transmission element is preferably supported the spring with one end on the male part and the other end on the pressure transmission element.

Gemäß einer bevorzugten Ausführungsform der Erfindung ist die Steckschlüsselverlängerung mit einem Kardangelenk zwischen Aufnahmeteil und Einsteckteil versehen, das einen zwischen 0 und 90° beliebigen Winkel zwischen Aufnahmeteil und Einsteckteil ermöglicht.According to a preferred embodiment of the invention, the Socket wrench extension with a universal joint between the receiving part and Insert part that has any angle between 0 and 90 ° Receiving part and insert part enables.

Weitere Einzelheiten, Merkmale und Vorteile des Gegenstandes der Erfindung werden nachfolgend anhand eines auf der Zeichnung dargestellten Ausführungsbeispieles erläutert. Die einzige Figur zeigt in einer Schnittansicht eine Steckschlüsselverlängerung in Gestalt einer Kardangelenk-Verbindung. Further details, features and advantages of the subject matter of the invention are based on an embodiment shown in the drawing explained. The single figure shows a socket wrench extension in a sectional view in the form of a universal joint.

Die im Rahmen eines Steckschlüsselsystems verwendbare Kardangelenk-Verbindung besteht aus einem Aufnahmeteil 1 mit einem darin eingeformten Innenvierkant, einem Einsteckteil 2 mit daran ausgebildetem Außenvierkant sowie u. a. einem Kardanelement 16, welches Aufnahmeteil 1 und Einsteckteil 2 gelenkig miteinander verbindet. Die Vierkantflächen von Aufnahmeteil 1 und Einsteckteil 2 entsprechen den international üblichen und genormten Abmessungen für Steckschlüsselsysteme.The universal joint connection that can be used as part of a socket wrench system consists of a receiving part 1 with a molded therein Inner square, a plug-in part 2 with an outer square formed thereon as well u. a. a gimbal element 16, which receiving part 1 and insert part 2 articulated connects with each other. The square surfaces of receiving part 1 and insert part 2 correspond to the internationally customary and standardized dimensions for socket wrench systems.

In an sich bekannter Weise ist das Einsteckteil 2 mit einem Arretierelement 4 in Gestalt einer Kugel versehen. Beim Einsetzen des Außenvierkantes 5 in einen Innenvierkant, wie er z. B. im Aufnahmeteil 1 vorgesehen ist, wird das Arretierelement 4 in seiner Radialbohrung 6 zunächst zurückgeschoben und kann anschließend in einer hierfür vorgesehenen Ausnehmung des Außenvierkantes einrasten. Eine solche Ausnehmung ist bei dem Aufnahmeteil 1 durch eine entsprechende Bohrung 7 verwirklicht.In a manner known per se, the plug-in part 2 is provided with a locking element 4 in Shape of a sphere. When inserting the outer square 5 in one Inner square, as he z. B. is provided in the receiving part 1, the locking element 4 initially pushed back in its radial bore 6 and can then in a recess in the outer square provided for this purpose engage. Such a recess is in the receiving part 1 by a corresponding hole 7 realized.

Bei bekannten Systemen erfolgt das Zurückdrücken des kugelförmigen Arretierelementes 4 in der Radialbohrung 6 entgegen der Kraft einer dort angeordneten Feder. Auf diese Weise ist auch die Kraft, mit der der Außenvierkant 5 in einem entsprechenden Innenvierkant gehalten wird, von der Federkraft abhängig.In known systems, the spherical locking element is pushed back 4 in the radial bore 6 against the force of an arranged there Feather. This is also the force with which the outer square 5 is held in an appropriate square, depending on the spring force.

Demgegenüber liegt gemäß der Zeichnung an dem dort ebenfalls kugelförmigen Arretierelement 4 nicht unmittelbar eine Feder, sondern ein Druckübertragungselement 8 in Gestalt einer kurzen Stange bzw. eines Stiftes an. Das Druckübertragungselement 8 ist in einer Längsbohrung 9 des Einsteckteiles 2 geführt und weist an seinem einen Ende eine Schräge 10 auf, welche innen an dem kugelförmigen Arretierelement 4 anliegt. Das andere Ende 14 ist tastenförmig gestaltet, und seine Rückseite dient als Anlagefläche für eine auf Druck wirkende Feder 11. Die Feder 11 ist so angeordnet, daß sie auf das Druckübertragungselement 8 eine Kraft ausübt, welche bestrebt ist, das Druckübertragungselement 8 von dem Einsteckteil 2 weg und in Richtung auf das Kardanelement 16 zu bewegen. Da die Schräge 10 in Verbindung mit dem Arretierelement 4 einen Mechanismus zur Umsetzung der Axialbewegung des Druckübertragungselementes 8 in eine im wesentlichen radiale Bewegung des Arretierelementes 4 bildet, bewirkt die Feder 11 in ihrem entspannten Zustand zugleich, daß sich das kugelförmige Arretierelement 4 in seiner Radialbohrung 6 nach innen zurückziehen kann. Hierzu sind selbstverständlich Maßnahmen getroffen, um ein Herausfallen der in diesem Zustand beweglichen Kugel aus dem Einsteckteil 2 zu verhindern.In contrast, according to the drawing is due to the same there spherical locking element 4 not directly a spring, but a Pressure transmission element 8 in the form of a short rod or a pin on. The pressure transmission element 8 is in a longitudinal bore 9 of the Inserted part 2 out and has at one end a slope 10, which rests on the inside of the spherical locking element 4. The other End 14 is shaped like a button, and its back serves as a contact surface for a spring acting on pressure 11. The spring 11 is arranged so that it exerts a force on the pressure transmission element 8, which endeavors to the pressure transmission element 8 away from the insertion part 2 and in the direction to move the gimbal 16. Since the slope 10 in connection with the locking element 4 a mechanism for implementing the axial movement of the pressure transmission element 8 in a substantially radial movement of the locking element 4 forms, causes the spring 11 in its relaxed Condition at the same time that the spherical locking element 4 in its Can withdraw radial bore 6 inwards. This goes without saying Measures taken to prevent falling out in this condition prevent moving ball from the insert 2.

Das Kardanelement 16, welches über einen ersten Bolzen 17 mit dem Einsteckteil 2, und über einen zweiten Bolzen 18 mit dem Aufnahmeteil 1 gelenkig verbunden ist, weist bezüglich der Drehachse 19 des Bolzens 17 eine mit einem Exzenter versehene Druckübertragungsfläche 20 auf. Die Druckübertragungsfläche 20 liegt auf dem tastenförmigen Ende 14 des Druckübertragungselementes 8 an, wobei, wie die Zeichnung erkennen läßt, die exzentrisch gestaltete Druckübertragungsfläche 20 dort den größten Abstand von der Drehachse 19 aufweist, wo das tastenförmige Ende 14 bei gerader gegenseitiger Ausrichtung von Aufnahmeteil 1 und Einsteckteil 2 anliegt.The cardan element 16, which has a first bolt 17 with the plug-in part 2, and articulated with the receiving part 1 via a second bolt 18 connected, has one with respect to the axis of rotation 19 of the bolt 17 an eccentric pressure transmission surface 20. The pressure transfer area 20 lies on the button-shaped end 14 of the pressure transmission element 8, whereby, as the drawing shows, the eccentrically designed pressure transmission surface 20 there the greatest distance from the axis of rotation 19, where the button-shaped end 14 at a straight mutual alignment of receiving part 1 and insert part 2 is present.

Im Falle der auf der Zeichnung erkennbaren Auslenkung zwischen Aufnahmeteil 1 und Einsteckteil 2 gibt die exzentrische Druckübertragungsfläche 20 das Druckübertragungselement 8 frei, so daß sich dieses unter der Wirkung der Feder 11 von dem kugelförmigen Arretierelement 4 entfernt und das Arretierelement 4 vollständig in seine Radialbohrung 6 hineingelangen kann. Bei einem Zurückschwenken des Aufnahmeteils 1 hingegen wird das Druckübertragungselement 8 durch die exzentrische Druckübertragungsfläche 20 in das Einsteckteil 2 hineingeschoben, wodurch das Arretierelement 4 in einer äußeren Stellung, in der es noch zum Teil aus der Schlüsselfläche 21 herausragt, gesperrt wird. Ein dort aufgesteckter Steckschlüssel kann sich dann auch unter Kraftwirkung nicht mehr lösen.In the case of the deflection between Receiving part 1 and insert part 2 gives the eccentric Pressure transmission surface 20, the pressure transmission element 8 free, so that this under the action of the spring 11 from the spherical Removed locking element 4 and the locking element 4 completely in his Radial bore 6 can get into it. When the Receiving part 1, however, the pressure transmission element 8 by eccentric pressure transmission surface 20 in the insert part 2 pushed in, whereby the locking element 4 in an outer position, in which still partially protrudes from the key surface 21 is blocked. On The socket wrench plugged in there can then also act under force no longer solve.

Die exzentrisch gestaltete Kontur der Druckübertragungsfläche 20 ist dabei so gewählt, daß die Freigabe des Arretierelementes 4 erst dann erfolgt, wenn, wie auf der Zeichnung dargestellt, Aufnahmeteil und Einsteckteil stark zueinander angewinkelt werden. The eccentrically designed contour of the pressure transmission surface 20 is so chosen that the release of the locking element 4 takes place only when, as shown in the drawing, receiving part and insert part strong be angled towards each other.

BezugszeichenlisteLIST OF REFERENCE NUMBERS

11
Aufnahmeteilreceiving part
22
Einsteckteilplug
44
Arretierelementlocking
55
AußenvierkantOutside Square
66
Radialbohrungradial bore
77
Bohrung, AusnehmungBore, recess
88th
DruckübertragungselementPressure transmission element
99
Längsbohrunglongitudinal bore
1010
Schrägeslope
1111
Federfeather
1414
tastenförmiges Endebutton-shaped end
1515
InnenvierkantInside Square
1616
Kardanelementgimbal
1717
Bolzenbolt
1818
Bolzenbolt
1919
Drehachseaxis of rotation
2020
DruckübertragungsflächePressure transmitting surface
2121
Schlüsselflächekey area

Claims (5)

  1. Socket spanner extension comprising a polygonal insertion part (2), having spanner surfaces (21), at one end and a correspondingly designed receiving part (1) at the other end, and comprising a joint between receiving part (1) and insertion part (2), the insertion part (2) being provided with a locking element (4) partly emerging from one of the spanner surfaces (21), having a pressure-transmitting element (8) which is guided axially in the insertion part (2) and one end (14) of which, of pin-shaped or button-shaped design, serves for the pressure actuation of the pressure-transmitting element (8) and the other end of which is a component of a mechanism for converting an axial movement, directed towards the insertion part (2), of the pressure-transmitting element (8) into an outward movement of the locking element (4), characterized in that an element (16), mounted on the insertion part (2) in a pivotable manner, of the joint has a pressure-transmitting surface (20) which is provided with an eccentric relative to the rotation axis (19) and against which the pin-shaped or button-shaped end (14) of the pressure-transmitting element (8) bears, the largest width of the eccentric occurring when receiving part (1) and insertion part (2) are arranged in straight alignment with one another.
  2. Socket spanner extension according to Claim 1, characterized in that the other end of the pressure-transmitting element (8) is provided with a bevel (10) which bears against the radially guided locking element (4).
  3. Socket spanner extension according to Claim 1 or 2, characterized by a spring (11) which exerts a pressure force on the pressure-transmitting element (8), the pressure force being directed towards the pin or button end (14).
  4. Socket spanner extension according to Claim 3, characterized in that the spring (11) is supported with its one end on the insertion part (2) and with its other end on the pressure-transmitting element (8).
  5. Socket spanner extension according to one of Claims 1 to 4, characterized by a cardan joint betweeen receiving part (1) and insertion part (2).
EP98117961A 1997-10-10 1998-09-22 Socket prolongation Expired - Lifetime EP0908274B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SI9830151T SI0908274T1 (en) 1997-10-10 1998-09-22 Socket prolongation

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE1997144865 DE19744865C2 (en) 1997-10-10 1997-10-10 Socket wrench extension
DE19744865 1997-10-10

Publications (2)

Publication Number Publication Date
EP0908274A1 EP0908274A1 (en) 1999-04-14
EP0908274B1 true EP0908274B1 (en) 2002-04-03

Family

ID=7845197

Family Applications (2)

Application Number Title Priority Date Filing Date
EP98117961A Expired - Lifetime EP0908274B1 (en) 1997-10-10 1998-09-22 Socket prolongation
EP98117962A Expired - Lifetime EP0908275B1 (en) 1997-10-10 1998-09-22 Socket prolongation

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP98117962A Expired - Lifetime EP0908275B1 (en) 1997-10-10 1998-09-22 Socket prolongation

Country Status (11)

Country Link
US (2) US6119559A (en)
EP (2) EP0908274B1 (en)
JP (2) JP3381061B2 (en)
AT (2) ATE213195T1 (en)
CA (2) CA2249794A1 (en)
DE (3) DE19758493C2 (en)
DK (2) DK0908275T3 (en)
ES (2) ES2172848T3 (en)
PT (2) PT908275E (en)
SI (2) SI0908275T1 (en)
TW (2) TW413653B (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE20209159U1 (en) 2002-06-12 2002-08-29 Wille Gmbh & Co Quick lock for extensions of plug-in tools
US6779423B2 (en) 2002-07-12 2004-08-24 Honda Motor Co., Ltd. Kickoff socket
US6796190B2 (en) * 2003-02-19 2004-09-28 Snap-On Incorporated Electronic torque wrench with flexible head
US6874392B1 (en) * 2003-07-25 2005-04-05 Keng Hao Wu Connector of hand tool
US7114705B2 (en) * 2004-03-30 2006-10-03 Steiner Donald J Grab-activated self-locking winch handle
US20050229752A1 (en) * 2004-04-20 2005-10-20 Nickipuck Michael F Low profile locking socket wrench universal joint
US7185568B1 (en) * 2005-08-24 2007-03-06 Frank Vance Adjustable socket wrench extension
US7997169B1 (en) 2006-04-13 2011-08-16 Hack Timothy L Housed extension bar
US8186248B1 (en) 2009-05-01 2012-05-29 Daniel Considine High speed extension breaker bar
US9352455B2 (en) 2011-09-20 2016-05-31 Milwaukee Electric Tool Corporation Fastener driver and extension
TW201350292A (en) * 2012-06-14 2013-12-16 Hong Ann Tool Ind Co Ltd Tool extension rod having remote control function
US20150000475A1 (en) * 2013-06-28 2015-01-01 Thorsen Tools, Inc. Impact socket adapter

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US1651361A (en) * 1923-08-02 1927-12-06 Ayotte Joseph Rene Interchangeable wrench or other tool holder
DE1170336B (en) 1957-05-03 1964-05-14 Carl Karrer App U Behaelterbau Spring clamps
US2987334A (en) * 1959-06-22 1961-06-06 Apex Machine & Tool Company Tool holders
DE2118858A1 (en) 1971-04-19 1972-11-09 Flaig, Christian, 7207 Aldingen Grub screw screwdriver
DE2848243A1 (en) * 1978-11-07 1980-05-14 Hilti Ag SETTING TOOL FOR TURNING A THREADED ROD INTO A HOLE
US4399722A (en) * 1981-03-06 1983-08-23 Sardo Jr Vincent Socket wrench including quick-release adaptor
DE3214867A1 (en) * 1982-04-22 1983-10-27 Werkzeugfabrik G. Adolf Lemp & Co, 5630 Remscheid Ratchet with direction locking device arranged in the operating lever
US4703677A (en) * 1986-05-01 1987-11-03 Rossini James L Variable length socket extension and screwdriver
US4733584A (en) * 1986-05-12 1988-03-29 Richard Karge Socket wrench extension
DE8909645U1 (en) * 1989-08-11 1990-12-06 Werkzeugfabrik G. Adolf Lemp & Co, 5630 Remscheid, De
JPH03162092A (en) 1989-11-20 1991-07-12 Matsushita Electric Ind Co Ltd Degaussing coil fixing device
US5291809A (en) * 1992-03-02 1994-03-08 Fox Iii Leonard J Locking adapter for socket wrench
US5289745A (en) * 1993-04-06 1994-03-01 Beardsley Gilbert D Socket wrench extension with lock
US5433548A (en) * 1993-09-22 1995-07-18 Roberts Tool International (Usa), Inc. Universal joint for torque transmitting tools
DE19526968A1 (en) * 1995-07-25 1997-01-30 Hans Mesenhoeller Screwdriver

Also Published As

Publication number Publication date
DK0908275T3 (en) 2002-05-27
ES2172848T3 (en) 2002-10-01
JP3412083B2 (en) 2003-06-03
CA2249890A1 (en) 1999-04-10
PT908274E (en) 2002-09-30
SI0908274T1 (en) 2002-08-31
SI0908275T1 (en) 2002-08-31
JPH11226877A (en) 1999-08-24
ATE213195T1 (en) 2002-02-15
DE19758493C2 (en) 2000-01-27
ES2175583T3 (en) 2002-11-16
DK0908274T3 (en) 2002-07-29
DE59803598D1 (en) 2002-05-08
TW413652B (en) 2000-12-01
DE19758493A1 (en) 1999-04-22
EP0908275A1 (en) 1999-04-14
EP0908275B1 (en) 2002-02-13
DE59803055D1 (en) 2002-03-21
JPH11221776A (en) 1999-08-17
EP0908274A1 (en) 1999-04-14
ATE215425T1 (en) 2002-04-15
PT908275E (en) 2002-07-31
US6170365B1 (en) 2001-01-09
TW413653B (en) 2000-12-01
JP3381061B2 (en) 2003-02-24
US6119559A (en) 2000-09-19
CA2249794A1 (en) 1999-04-10

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