EP0755757A1 - Screwing tool - Google Patents

Screwing tool Download PDF

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Publication number
EP0755757A1
EP0755757A1 EP96111745A EP96111745A EP0755757A1 EP 0755757 A1 EP0755757 A1 EP 0755757A1 EP 96111745 A EP96111745 A EP 96111745A EP 96111745 A EP96111745 A EP 96111745A EP 0755757 A1 EP0755757 A1 EP 0755757A1
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EP
European Patent Office
Prior art keywords
working head
screwing tool
pin
handle
locking
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
Application number
EP96111745A
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German (de)
French (fr)
Other versions
EP0755757B1 (en
Inventor
Hans Mesenhöller
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Individual
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Individual
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Publication date
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Priority to SI9630124T priority Critical patent/SI0755757T1/en
Publication of EP0755757A1 publication Critical patent/EP0755757A1/en
Application granted granted Critical
Publication of EP0755757B1 publication Critical patent/EP0755757B1/en
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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
    • B25G—HANDLES FOR HAND IMPLEMENTS
    • B25G1/00—Handle constructions
    • B25G1/06—Handle constructions reversible or adjustable for position
    • B25G1/063—Handle constructions reversible or adjustable for position for screwdrivers, wrenches or spanners
    • B25G1/066—Handle constructions reversible or adjustable for position for screwdrivers, wrenches or spanners the grip itself being angularly adjustable

Definitions

  • the invention relates to a screwing tool with a working head and a handle which can be pivoted to the working head and can be locked in different angular positions.
  • a handle has a fork-shaped end, a working head being pivotably mounted between the two fork tines.
  • an axially displaceable locking pin is provided which can engage in a toothing of the working head in order to determine the pivotability of the working head in the different angular positions.
  • the working head has a square-shaped extension, which forms a receiving device, for receiving nuts or similar screw members.
  • a disadvantage of this configuration is a lack of adhesion of the screw member to the receiving device, so that when the screwing tool is removed from a hexagon screw or the like, the nut may get stuck on the screw and thus become detached from the screwing tool.
  • the invention is therefore based on the object of developing a generic screwdriver in a manner which is advantageous for the operator.
  • the receiving device is provided with a locking device which releases an otherwise fixed connection between the receiving device and screw member only after actuation of an unlocking member, the unlocking device being actuatable by pressing a button.
  • the end face of the button can preferably have a larger surface than the locking element, which can be designed as a pin.
  • the button can also be arranged at a different location than the locking element, for example outside the Merkant cylinder on which the screw member can be plugged, namely in an enlarged diameter area of the working head.
  • the displacement of the working head into the swivel end position disables the locking device.
  • the locking device can be designed as a pin, which emerges from a polygonal section of the working head and into a corresponding latching opening in the square insertion opening of the screw member engages. It is considered to be advantageous if the motion transmission for unlocking is also carried out by means of a button in this solution. It is considered to be particularly advantageous that in the second variant no separate, in particular very small, special actuators have to be actuated to unlock the screw member. In this respect, operation with cold hands or with oil-smeared hands is also possible.
  • a further development of the invention provides that the extension of the imaginary axis of the polygonal cylinder, in particular the square cylinder, which forms the receiving device, intersects the pivot axis of the working head. This results in an elongated shape of the screwing tool, in particular in the zero-degree position of the tool, with a lug-technically advantageous attachment on the screwing member.
  • the receiving device is also designed as a square cylinder, the angular position of the handle can also be set either parallel to the screw axis or transversely to it.
  • the device for unlocking the locking device is preferably provided within the working head 1, the working head then preferably being composed of two half-shells.
  • an actuating lever can be provided which engages the locking pin and which is displaced by actuating a button or a stylus. The axial displacement of a stylus can then lead to the axial displacement of the locking pin.
  • the actuating lever is preferably arranged so as to be pivotable about an axis. It is considered advantageous if the lever is formed by a leaf spring and the leaf spring is also U-shaped.
  • the button can be arranged between the locking pin and the pivot axis of the working head be. If the feeler lever is also arranged between the effective pivot point of the spring leaf and the locking pin, the lever ratio is favorable. It is furthermore considered to be advantageous if the locking pin is held in the locking position due to a cushioning.
  • a button can also be provided.
  • This button can then preferably cooperate with a stop edge of the handle, such that in the swivel end position the button comes against the stop position and is thus shifted along with a shift of the locking pin in the unlocking position.
  • the swivel end position which is associated with an unlocking of the locking pin, is preferably in an angular position of more than 90 °. In this swivel end position, the handle should preferably not be lockable, so that when the screw member is removed or plugged in, it is not necessary to actuate the locking device to lock the working head.
  • the screwing tool to be described in the exemplary embodiment has a handle 2.
  • the handle 2 is elongated, designed in the form of a handle and has a handle area with which the handle can be encompassed by an operating hand.
  • the handle 2 has a slide 12 which can be displaced in the axial direction of the handle 2.
  • a tappet 14, which is arranged approximately in the center of the axis of the handle 2, can be moved back and forth in the axial direction of the handle by means of a driver 16. In the forward position, the plunger 14 is acted upon by a compression spring 15.
  • the plunger 14 continues into a locking pin 13 of smaller diameter, which plunges into a fork opening of the handle 2.
  • the fork opening is formed by two fork tines 17.
  • the fork tines 17 each form bearing eyes for the axis of rotation S of a working head 1 which can be pivoted about the axis S.
  • the working head 1 forms on the back a half-roll shape, with grooves running parallel to the swivel axis S on the surface. Overall, these form a toothing, into which tooth gaps the locking pin 13 engages in the forward position, so that the pivotability of the working end 1 relative to the handle 2 can be blocked.
  • the working head consists of two half-shells 20, 21 (see Fig. 6, 8).
  • the working end 2 has a holding device 3, which in the exemplary embodiment is designed as a square cylinder.
  • a screw member 4 which in the exemplary embodiment is designed as a ring spanner insert has an associated opening 22.
  • the square 3 can be inserted into this insertion opening 22.
  • a locking device 5 is provided for locking the plug connection between working head 1 and screw member 4.
  • the locking device 5 consists of a locking pin 5 projecting radially outward from the square section 3, which is moved back into the square section 3 by actuating a button 6 and / or by pivoting the working head 1 into the pivoting end position (FIG. 4). The relocation is lever-operated. In the locking position, the locking pin 5 engages in a locking opening 23 of the insertion opening 22.
  • a lever or a rocker 7 is provided in the interior of the working head 1.
  • the lever 7 is pivotable about an axis.
  • the free end of the lever 7 is narrowed, but could also be fork-shaped. The fork could then lie in an annular groove of the locking pin 5.
  • the narrowed end section of the lever lies in a bore of the pin 5.
  • a feeler pin 6 acts on the lever, the feeler pin 6 is arranged between the locking pin 5 and the axis of rotation of the lever 7.
  • the lever 7 is formed by one end of a U-shaped spring 11.
  • the spring 11 lies in such a way in a cavity of the working head 1 that the locking pin 5 is held resiliently in the locking forward position (FIG. 5).
  • the axial displacement of the button 6 consequently causes a tension in the spring 11, so that after the button 6 is released, the locking pin 5 automatically shifts back into the locking position.
  • the arm 7 of the spring 11 is also elastic, so that the arm 7 can even bend even when the button 6 is fully pressed.
  • the button 6 is assigned to a larger area of the working head 1. It lies in such a radial distance from the axis of rotation S of the working head 1 that the surface 6 'of the button in the swivel end position (FIG. 4) is acted upon by a stop edge 19 becomes.
  • the stop edge 19 is preferably formed from the bottom 18 of the fork-shaped opening.
  • the button 6 is not acted upon.
  • the locking pin 13 can snap into a locking recess or toothing of the working head 1 so that it is fixed in the 90 ° pivot position.
  • the pivotability of the working head 1 is released, so that the working head 1 can be displaced beyond the 90 ° position until the end face 6 'of the button 6 hits the stop 19, so that a further pivoting of the working head 1 Up to the swivel end position, an axial displacement of the pushbutton 6 brings about an unlocking of the locking pin 5.
  • the locking end 24 of the locking pin 5 has a smaller diameter than the section of the locking pin 5 which is inserted in the opening of the square, so that a step 25 is formed which, when the locking pin 5 is in the extended position, is flush with the square surface of the receiving device 3 .

Abstract

The screwing tool has a work head (1) with socket (3) for interchangeable spanner (4). The socket forms a locking device (5) for the screwing member or spanner and can be unlocked by press button activation (6). The locking device can be unlocked by swivelling the work head into the swivel end position. The socket is preferably a polygonal cylinder such as square cylinder whose extended axis (A) intersects the swivel axis (S) of the work head. The locking device has a pin (5) projecting out of the cylinder and in lever or rocker connection with the press button.

Description

Die Erfindung betrifft ein Schraubwerkzeug mit einem Arbeitskopf und einem zum Arbeitskopf verschwenkbaren und in verschiedenen Winkelstellungen feststellbaren Handgriff gemäß Gattungsbegriff des Anspruchs 1.The invention relates to a screwing tool with a working head and a handle which can be pivoted to the working head and can be locked in different angular positions.

Ein derartiges Werkzeug ist aus der europäischen Patentanmeldung 0 377 777 her bekannt. Dort weist ein Handgriff ein gabelförmiges Ende auf, wobei zwischen den beiden Gabelzinken ein Arbeitskopf schwenkbar gelagert ist. Im Handgriff ist ein axial zum Handgriff verlagerbarer Raststift vorgesehen, der in eine Verzahnung des Arbeitskopfes eingreifen kann, um die verschwenkbarkeit des Arbeitskopfes in den verschiedenen Winkelstellungen festzulegen. Der Arbeitskopf weist einen vierkantförmigen Fortsatz auf, welcher eine Aufnahmevorrichtung ausbildet, zur Aufnahme von Nüssen oder ähnlichen Schraubgliedern. Nachteilhaft an dieser Ausgestaltung ist eine mangelnde Haftung des Schraubgliedes an der Aufnahmevorrichtung, so daß es beim Abziehen des Schraubwerkzeuges von einer Sechskantschraube oder dergleichen vorkommen kann, daß die Nuß auf der Schraube stecken bleibt und sich so vom Schraubwerkzeug löst.Such a tool is known from European patent application 0 377 777. There, a handle has a fork-shaped end, a working head being pivotably mounted between the two fork tines. In the handle an axially displaceable locking pin is provided which can engage in a toothing of the working head in order to determine the pivotability of the working head in the different angular positions. The working head has a square-shaped extension, which forms a receiving device, for receiving nuts or similar screw members. A disadvantage of this configuration is a lack of adhesion of the screw member to the receiving device, so that when the screwing tool is removed from a hexagon screw or the like, the nut may get stuck on the screw and thus become detached from the screwing tool.

Es sind bereits Verriegelungsvorrichtungen in Vorschlag gebracht worden, bei welchen ein Stift in eine Öffnung tritt, und wobei zur Entriegelung der Stift mittels eines Werkzeuges durch die Öffnung gedrückt werden kann. Wegen des Zwanges zur Zuhilfenahme von Entriegelungswerkzeugen ist eine derartige Verriegelungseinrichtung nachteilhaft.There have already been proposed locking devices in which a pin enters an opening, and the pin can be pushed through the opening by means of a tool to unlock it. Such a locking device is disadvantageous because of the compulsion to use unlocking tools.

Der Erfindung liegt daher die Aufgabe zugrunde, ein gattungsgemäßes Schraubwerkzeug bedienungsvorteilhaft weiterzubilden.The invention is therefore based on the object of developing a generic screwdriver in a manner which is advantageous for the operator.

Gelöst wird die Aufgabe durch die im Anspruch 1 und im Anspruch 2 angegebene Erfindung.The object is achieved by the invention specified in claim 1 and in claim 2.

Unteransprüche stellen vorteilhafte Weiterbildungen der Erfindung dar.Subclaims represent advantageous developments of the invention.

Zufolge der im Anspruch 1 angegebenen Erfindung ist die Aufnahmevorrichtung mit einer Verriegelungseinrichtung versehen, die nur nach Betätigung eines Entriegelungsgliedes eine ansonsten feste Verbindung zwischen Aufnahmevorrichtung und Schraubglied löst, wobei die Entriegelungsvorrichtung durch Tastendruck betätigbar ist. Hierdurch ist eine werkzeuglose Entriegelung gegeben. Die Stirnfläche des Tasters kann dabei bevorzugt eine größere Oberfläche aufweisen, als das Verriegelungselement, welches als Stift ausgebildet sein kann. Der Taster kann darüber hinaus auch an einem anderen Ort, als das Verriegelungselement angeordnet sein, beispielsweise außerhalb des Merkantzylinders, auf welchem das Schraubglied aufsteckbar ist, nämlich in einem durchmesservergrößerten Bereich des Arbeitskopfes. Zum Lösen der Verriegelung zwischen Schraubglied und Aufnahmevorrichtung braucht nun lediglich der Taster gedrückt zu werden, damit die Verriegelungseinrichtung außer Wirkung tritt. Bei der im Anspruch 2 angegebenen Erfindung ist vorgesehen, daß die Verlagerung des Arbeitskopfes in die Schwenkendstellung die Verriegelungsvorrichtung außer Wirkung bringt. Auch hier kann die Verriegelungsvorrichtung als Stift ausgebildet sein, welcher aus einem Mehrkantabschnitt des Arbeitskopfes austritt und in eine entsprechende Rastöffnung der Vierkant-Einstecköffnung des Schraubgliedes einrastet. Es wird als vorteilhaft angesehen, wenn auch bei dieser Lösung die Bewegungsübertragung zur Entriegelung mittels eines Tasters erfolgt. Als besonders vorteilhaft wird es angesehen, daß bei der zweiten Variante keine gesonderten, insbesondere sehr kleine spezielle Betätigungsglieder zur Entriegelung des Schraubgliedes betätigt werden müssen. Insofern ist auch eine Betätigung mit kalten Händen oder mit ölverschmierten Händen möglich. Eine Weiterbildung der Erfindung sieht vor, daß die Verlängerung der gedachten Achse des Mehrkantzylinders, insbesondere des Vierkantzylinders, welcher die Aufnahmevorrichtung ausbildet, die Schwenkachse des Arbeitskopfes schneidet. Hierdurch ergibt sich insbesondere in der Null-Grad-Stellung des Werkzeuges eine gestreckte Form des Schraubwerkzeuges mit einem hebeltechnisch günstigen Ansatz am Schraubglied. Ist die Aufnahmevorrichtung zudem als Vierkantzylinder ausgebildet, so kann die Winkelstellung des Handgriffes zudem entweder parallel zur Schraubachse oder quer dazu eingestellt werden. Die Vorrichtung zur Entriegelung der Verriegelungsvorrichtung ist bevorzugt innerhalb des Arbeitskopfes 1 vorgesehen, wobei der Arbeitskopf dann bevorzugt aus zwei Halbschalen zusammengesetzt ist. Hierzu kann ein Betätigungshebel vorgesehen sein, welcher am Verriegelungsstift angreift, und welcher durch Betätigung eines Tasters bzw. eines Taststiftes verlagert wird. Die axiale Verlagerung eines Taststiftes kann dann zur axialen Verlagerung des Verriegelungsstiftes führen. Dabei ist bevorzugt der Betätigungshebel um eine Achse schwenkbar angeordnet. Es wird als vorteilhaft angesehen, wenn der Hebel von einer Blattfeder ausgebildet ist und die Blattfeder darüber hinaus U-förmig ausgebildet ist. Der Taster kann dabei zwischen dem Verriegelungsstift und der Schwenkachse des Arbeitskopfes angeordnet sein. Ist der Tasthebel zudem zwischen dem wirksamen Drehpunkt des Federblattes und dem Verriegelungsstift angeordnet, so ergibt sich ein günstiges Hebelverhältnis. Es wird weiter als vorteilhaft angesehen, wenn der Verriegelungsstift zufolge einer Abfederung in der Verriegelungsstellung gehalten wird. Um die Verriegelungseinrichtung in der Schwenkendstellung des Arbeitskopfes zu entriegeln, kann ebenfalls ein Taster vorgesehen sein. Dieser Taster kann dann vorzugsweise mit einer Anschlagkante des Handgriffes zusammenwirken, derart, daß in der Schwenkendstellung der Taster gegen die Anschlagstellung tritt und somit verlagert wird einhergehend mit einer Verlagerung des Verriegelungsstiftes in der Entriegelungsstellung. Die Schwenkendstellung, die mit einer Entriegelung des Verriegelungsstiftes einhergeht liegt bevorzugt in einer Winkelstellung von mehr als 90°. In dieser Schwenkendstellung soll der Handgriff vorzugsweise nicht feststellbar sein, so daß bei der Entnahme bzw. beim Aufstecken des Schraubgliedes eine Betätigung der Feststellvorrichtung zur Feststellung des Arbeitskopfes nicht notwendig ist.According to the invention specified in claim 1, the receiving device is provided with a locking device which releases an otherwise fixed connection between the receiving device and screw member only after actuation of an unlocking member, the unlocking device being actuatable by pressing a button. This enables unlocking without tools. The end face of the button can preferably have a larger surface than the locking element, which can be designed as a pin. The button can also be arranged at a different location than the locking element, for example outside the Merkant cylinder on which the screw member can be plugged, namely in an enlarged diameter area of the working head. To release the lock between the screw member and the receiving device, all that is required now is to press the button so that the locking device becomes ineffective. In the invention specified in claim 2 it is provided that the displacement of the working head into the swivel end position disables the locking device. Here, too, the locking device can be designed as a pin, which emerges from a polygonal section of the working head and into a corresponding latching opening in the square insertion opening of the screw member engages. It is considered to be advantageous if the motion transmission for unlocking is also carried out by means of a button in this solution. It is considered to be particularly advantageous that in the second variant no separate, in particular very small, special actuators have to be actuated to unlock the screw member. In this respect, operation with cold hands or with oil-smeared hands is also possible. A further development of the invention provides that the extension of the imaginary axis of the polygonal cylinder, in particular the square cylinder, which forms the receiving device, intersects the pivot axis of the working head. This results in an elongated shape of the screwing tool, in particular in the zero-degree position of the tool, with a lug-technically advantageous attachment on the screwing member. If the receiving device is also designed as a square cylinder, the angular position of the handle can also be set either parallel to the screw axis or transversely to it. The device for unlocking the locking device is preferably provided within the working head 1, the working head then preferably being composed of two half-shells. For this purpose, an actuating lever can be provided which engages the locking pin and which is displaced by actuating a button or a stylus. The axial displacement of a stylus can then lead to the axial displacement of the locking pin. The actuating lever is preferably arranged so as to be pivotable about an axis. It is considered advantageous if the lever is formed by a leaf spring and the leaf spring is also U-shaped. The button can be arranged between the locking pin and the pivot axis of the working head be. If the feeler lever is also arranged between the effective pivot point of the spring leaf and the locking pin, the lever ratio is favorable. It is furthermore considered to be advantageous if the locking pin is held in the locking position due to a cushioning. In order to unlock the locking device in the pivoting end position of the working head, a button can also be provided. This button can then preferably cooperate with a stop edge of the handle, such that in the swivel end position the button comes against the stop position and is thus shifted along with a shift of the locking pin in the unlocking position. The swivel end position, which is associated with an unlocking of the locking pin, is preferably in an angular position of more than 90 °. In this swivel end position, the handle should preferably not be lockable, so that when the screw member is removed or plugged in, it is not necessary to actuate the locking device to lock the working head.

Ein Ausführungsbeispiel der Erfindung wird nachfolgend anhand beigefügter Zeichnungen im Detail erläutert. Es zeigen:

Figur 1
ein erfindungsgemäßes Schraubwerkzeug in der Draufsicht,
Figur 2
eine Seitenansicht des Schraubwerkzeuges mit abgezogenem Schraubglied in der Null-Grad-Stellung (Gestrecktstellung),
Figur 3
einen Darstellung gemäß Fig. 2 mit aufgestecktem Schraubglied in der 90°-Stellung,
Figur 4
eine Darstellung gemäß Fig. 2 in der Schwenkendstellung,
Figur 5
eine Schnittdarstellung des Arbeitskopfes,
Figur 6
eine Darstellung gemäß der Linie VI-VI in Fig. 5,
Figur 7
eine Darstellung gemäß Fig. 5 bei betätigtem Taster und
Figur 8
eine Darstellung des aus zwei Halbschalen bestehenden Arbeitskopfes 1.
An embodiment of the invention is explained in detail below with reference to the accompanying drawings. Show it:
Figure 1
a screwing tool according to the invention in plan view,
Figure 2
a side view of the screwing tool with removed screw member in the zero degree position (extended position),
Figure 3
2 with the screw member attached in the 90 ° position,
Figure 4
2 in the swivel end position,
Figure 5
a sectional view of the working head,
Figure 6
a representation along the line VI-VI in Fig. 5,
Figure 7
5 with the button and
Figure 8
a representation of the working head consisting of two half-shells 1.

Das im Ausführungsbeispiel zu beschreibende Schraubwerkzeug weist einen Handgriff 2 auf. Der Handgriff 2 ist langgestreckt, in Form eines Stieles gestaltet und weist einen Griffbereich auf, mit welchem der Handgriff von einer Betätigungshand umfaßt werden kann. Der Handgriff 2 weist einen Schieber 12 auf, welcher in Achsrichtung des Handgriffes 2 verlagerbar ist. Mittels eines Mitnehmers 16 kann ein etwa in der Achsmitte des Handgriffes 2 angeordneter Stößel 14 in Achsrichtung des Handgriffes hin und her verlagert werden. In der vorverlagerten Stellung ist der Stößel 14 durch eine Druckfeder 15 beaufschlagt.The screwing tool to be described in the exemplary embodiment has a handle 2. The handle 2 is elongated, designed in the form of a handle and has a handle area with which the handle can be encompassed by an operating hand. The handle 2 has a slide 12 which can be displaced in the axial direction of the handle 2. A tappet 14, which is arranged approximately in the center of the axis of the handle 2, can be moved back and forth in the axial direction of the handle by means of a driver 16. In the forward position, the plunger 14 is acted upon by a compression spring 15.

Vorne setzt sich der Stößel 14 in einen durchmessergeringeren Raststift 13 fort, welcher in eine Gabelöffnung des Handgriffes 2 taucht. Die Gabelöffnung wird von zwei Gabelzinken 17 ausgebildet.At the front, the plunger 14 continues into a locking pin 13 of smaller diameter, which plunges into a fork opening of the handle 2. The fork opening is formed by two fork tines 17.

Die Gabelzinken 17 bilden jeweils Lageraugen aus für die Drehachse S eines Arbeitskopfes 1, welcher um die Achse S schwenkbar ist. Der Arbeitskopf 1 bildet rückseitig eine Halbwalzenform aus, mit auf der Oberfläche parallel zur Schwenkachse S verlaufenden Nuten. Diese bilden insgesamt eine Verzahnung aus, in welche Zahnlücken der Raststift 13 in der vorverlagerten Stellung eingreift, so daß die Schwenkbarkeit des Arbeitsendes 1 gegenüber dem Handgriff 2 blockierbar ist. Der Arbeitskopf besteht aus zwei Halbschalen 20, 21 (vgl.Fig.6, 8).The fork tines 17 each form bearing eyes for the axis of rotation S of a working head 1 which can be pivoted about the axis S. The working head 1 forms on the back a half-roll shape, with grooves running parallel to the swivel axis S on the surface. Overall, these form a toothing, into which tooth gaps the locking pin 13 engages in the forward position, so that the pivotability of the working end 1 relative to the handle 2 can be blocked. The working head consists of two half-shells 20, 21 (see Fig. 6, 8).

Zur Verschwenkung des Arbeitskopfes 1 wird der Schieber 12 zurückgezogen, die Druckfeder 15 wird komprimiert, der Raststift 13 zurückverlagert, so daß das Arbeitsende 2 frei drehen kann.To pivot the working head 1, the slide 12 is withdrawn, the compression spring 15 is compressed, the locking pin 13 is moved back so that the working end 2 can rotate freely.

Das Arbeitsende 2 weist eine Aufnahmevorrichtung 3 auf, diese ist im Ausführungsbeispiel als Vierkantzylinder ausgebildet. Ein Schraubglied 4 welches im Ausführungsbeispiel als Ringschlüsseleinsatz ausgebildet ist weist eine zugehörige Öffnung 22 auf. In diese Einstecköffnung 22 kann der Vierkant 3 eingesteckt werden.The working end 2 has a holding device 3, which in the exemplary embodiment is designed as a square cylinder. A screw member 4 which in the exemplary embodiment is designed as a ring spanner insert has an associated opening 22. The square 3 can be inserted into this insertion opening 22.

Zur Verriegelung der Steckverbindung zwischen Arbeitskopf 1 und Schraubglied 4 ist eine Verriegelungseinrichtung 5 vorgesehen. Die Verriegelungseinrichtung 5 besteht aus einem aus dem Vierkantabschnitt 3 radial auswärts ragenden Verriegelungsstift 5, welcher durch Betätigung eines Tasters 6 und/oder durch Verschwenken des Arbeitskopfes 1 in die Schwenkendstellung (Fig. 4) in den Vierkantabschnitt 3 zurückverlagert wird. Die Rückverlagerung erfolgt hebelbetätigt. In der Verriegelungsstellung greift der Verriegelungsstift 5 in eine Verriegelungsöffnung 23 der Einstecköffnung 22 ein.A locking device 5 is provided for locking the plug connection between working head 1 and screw member 4. The locking device 5 consists of a locking pin 5 projecting radially outward from the square section 3, which is moved back into the square section 3 by actuating a button 6 and / or by pivoting the working head 1 into the pivoting end position (FIG. 4). The relocation is lever-operated. In the locking position, the locking pin 5 engages in a locking opening 23 of the insertion opening 22.

Zur Rückverlagerung des Verriegelungsstiftes 5 ist im Innern des Arbeitskopfes 1 ein Hebel bzw. eine Wippe 7 vorgesehen. Der Hebel 7 ist um eine Achse schwenkbar.To move the locking pin 5 back, a lever or a rocker 7 is provided in the interior of the working head 1. The lever 7 is pivotable about an axis.

Das freie Ende des Hebels 7 ist verschmälert ausgebildet, könnte aber auch gabelförmig ausgebildet sein. Die Gabel könnte dann in einer Ringnut des Verriegelungsstiftes 5 einliegen. Der verschmälerte Endabschnitt des Hebels liegt in einer Bohrung des Stiftes 5. Auf den Hebel wirkt ein Taststift 6, der Taststift 6 ist zwischen dem Verriegelungsstift 5 und der Drehachse des Hebels 7 angeordnet. Bei Betätigung des Tasters, d. h. bei axialer Verlagerung des Taststiftes 7 verschwenkt der Hebel 7 unter gleichzeitiger radialer Verlagerung des Verriegelungsstiftes 5 nach innen, so daß ein in der Verriegelungsstellung über die Vierkantoberfläche herausragendes Riegelende 24 in die Öffnung eintaucht, in welcher der Verriegelungsstift 5 im Arbeitskopf 1 gelagert ist.The free end of the lever 7 is narrowed, but could also be fork-shaped. The fork could then lie in an annular groove of the locking pin 5. The narrowed end section of the lever lies in a bore of the pin 5. A feeler pin 6 acts on the lever, the feeler pin 6 is arranged between the locking pin 5 and the axis of rotation of the lever 7. When pressing the button, d. H. with axial displacement of the stylus 7, the lever 7 pivots with simultaneous radial displacement of the locking pin 5 inwards, so that a locking end 24 protruding in the locking position beyond the square surface plunges into the opening in which the locking pin 5 is mounted in the working head 1.

Im Ausführungsbeispiel wird der Hebel 7 von dem einen Ende einer U-förmigen Feder 11 ausgebildet. Die Feder 11 liegt derartig in einem Hohlraum des Arbeitskopfes 1 ein, daß der Verriegelungsstift 5 federnd in der Riegelvortrittsstellung (Fig. 5) gehalten ist. Die axiale Verlagerung des Tasters 6 bewirkt demzufolge eine Spannung der Feder 11, so daß nach Loslassen des Tasters 6 der Verriegelungsstift 5 selbsttätig in die Verriegelungsstellung zurückverlagert. Der Arm 7 der Feder 11 ist ebenfalls elastisch, so daß sich der Arm 7 auch bei vollständigem Eindrücken des Tasters 6 sogar durchbiegen kann.In the exemplary embodiment, the lever 7 is formed by one end of a U-shaped spring 11. The spring 11 lies in such a way in a cavity of the working head 1 that the locking pin 5 is held resiliently in the locking forward position (FIG. 5). The axial displacement of the button 6 consequently causes a tension in the spring 11, so that after the button 6 is released, the locking pin 5 automatically shifts back into the locking position. The arm 7 of the spring 11 is also elastic, so that the arm 7 can even bend even when the button 6 is fully pressed.

Der Taster 6 ist einem querschnittsgrößeren Bereich des Arbeitskopfes 1 zugeordnet. Er liegt in einer derartigen radialen Entfernung zur Drehachse S des Arbeitskopfes 1, daß die Oberfläche 6' des Tasters in der Schwenkendstellung (Fig. 4) von einer Anschlagkante 19 beaufschlagt wird. Die Anschlagkante 19 wird vorzugsweise vom Boden 18 der gabelförmigen Öffnung ausgebildet.The button 6 is assigned to a larger area of the working head 1. It lies in such a radial distance from the axis of rotation S of the working head 1 that the surface 6 'of the button in the swivel end position (FIG. 4) is acted upon by a stop edge 19 becomes. The stop edge 19 is preferably formed from the bottom 18 of the fork-shaped opening.

Wird der Arbeitskopf 1 beispielsweise in die in Figur 3 dargestellte 90°-Stellung gebracht, so ist der Taster 6 unbeaufschlagt. Der Raststift 13 kann in eine Rastausnehmung oder Verzahnung des Arbeitskopfes 1 einrasten, so daß dieser in der 90°-Schwenkstellung festliegt. Durch Betätigung des Schiebers 12 wird die Verschwenkbarkeit des Arbeitskopfes 1 freigegeben, so daß der Arbeitskopf 1 über die 90°-Stellung hinaus verlagerbar ist, bis die Stirnfläche 6' des Tasters 6 auf den Anschlag 19 trifft, so daß eine weitere Verschwenkung des Arbeitskopfes 1 bis in die Schwenkendstellung eine Axialverlagerung des Tasters 6 bewirkt einhergehend mit einer Entriegelung des Verriegelungsstiftes 5.If, for example, the working head 1 is brought into the 90 ° position shown in FIG. 3, the button 6 is not acted upon. The locking pin 13 can snap into a locking recess or toothing of the working head 1 so that it is fixed in the 90 ° pivot position. By actuating the slide 12, the pivotability of the working head 1 is released, so that the working head 1 can be displaced beyond the 90 ° position until the end face 6 'of the button 6 hits the stop 19, so that a further pivoting of the working head 1 Up to the swivel end position, an axial displacement of the pushbutton 6 brings about an unlocking of the locking pin 5.

Beim Ausführungsbeispiel weist der Riegelende 24 des Verriegelungsstiftes 5 einen geringeren Durchmesser auf, als der in der Öffnung des Vierkantes steckende Abschnitt des Verriegelungsstiftes 5, so daß sich eine Stufe 25 ausbildet, welche in der ausgefahrenen Stellung des Verriegelungsstiftes 5 mit der Vierkantoberfläche der Aufnahmevorrichtung 3 fluchtet.In the exemplary embodiment, the locking end 24 of the locking pin 5 has a smaller diameter than the section of the locking pin 5 which is inserted in the opening of the square, so that a step 25 is formed which, when the locking pin 5 is in the extended position, is flush with the square surface of the receiving device 3 .

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, auch zu dem Zweck, Merkmale dieser Unterlagen in Ansprüche vorliegender Anmeldung mit aufzunehmen.All the features disclosed 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, also for the purpose of including features of these documents in claims of the present application.

Claims (10)

Schraubwerkzeug mit einem Arbeitskopf (1) und einem dazu verschwenkbar in verschiedenen Winkelstellungen feststellbaren Handgriff (2), wobei der Arbeitskopf (1) mit einer Aufnahmevorrichtung (3) für ein auswechselbares Schraubglied (4) versehen ist, dadurch gekennzeichnet, daß die Aufnahmevorrichtung (3) eine Verriegelungseinrichtung (5) für das Schraubglied (4) ausbildet, welche durch Tasterbetätigung (6) entriegelbar ist.Screwing tool with a working head (1) and a handle (2) which can be pivoted to it in different angular positions, the working head (1) being provided with a receiving device (3) for an exchangeable screw member (4), characterized in that the receiving device (3 ) forms a locking device (5) for the screw member (4), which can be unlocked by pressing a button (6). Schraubwerkzeug mit einem Arbeitskopf (1) und einem dazu verschwenkbar in verschiedenen Winkelstellungen feststellbaren Handgriff (2), wobei der Arbeitskopf (1) mit einer Aufnahmevorrichtung (3) für ein auswechselbares Schraubglied (4) versehen ist, dadurch gekennzeichnet, daß die Aufnahmevorrichtung (3) eine Verriegelungsvorrichtung (5) für das Schraubglied (4) ausbildet, welche durch Verschwenkung des Arbeitskopfes (1) in die Schwenkendstellung entriegelbar ist.Screwing tool with a working head (1) and a handle (2) which can be pivoted to it in different angular positions, the working head (1) being provided with a receiving device (3) for an exchangeable screw member (4), characterized in that the receiving device (3 ) forms a locking device (5) for the screw member (4), which can be unlocked by pivoting the working head (1) into the pivoting end position. Schraubwerkzeug nach einem oder mehreren der vorhergehenden Ansprüche oder insbesondere danach, dadurch gekennzeichnet, daß die Aufnahmevorrichtung (3) als Mehrkantzylinder, insbesondere Vierkantzylinder ausgebildet ist, dessen verlängerte Achse (A) die Schwenkachse (S) des Arbeitskopfes schneidet.Screwing tool according to one or more of the preceding claims or in particular according thereto, characterized in that the receiving device (3) is designed as a polygonal cylinder, in particular a square cylinder, the elongated axis (A) of which intersects the swivel axis (S) of the working head. Schraubwerkzeug nach einem oder mehreren der vorhergehenden Ansprüche oder insbesondere danach, dadurch gekennzeichnet, daß die Verriegelungseinrichtung einen quer zur Achse (A) aus dem Mehrkantzylinder ausragenden Stift (5) aufweist, welcher in Hebel- oder Wippenverbindung (7) steht zu einem Taststift (6).Screwing tool according to one or more of the preceding claims or in particular according thereto, characterized in that the locking device has a pin (5) projecting transversely to the axis (A) from the polygonal cylinder, which pin is in lever or rocker connection (7) to a stylus pin (6 ). Schraubwerkzeug nach einem oder mehreren der vorhergehenden Ansprüche oder insbesondere danach, dadurch gekennzeichnet, daß der Verriegelungsstift (5) dem Ende eines Federblattes zugeordnet ist, auf welches der Taststift (6) wirkt.Screwing tool according to one or more of the preceding claims or in particular according thereto, characterized in that the locking pin (5) is assigned to the end of a spring leaf on which the feeler pin (6) acts. Schraubwerkzeug nach einem oder mehreren der vorhergehenden Ansprüche oder insbesondere danach, dadurch gekennzeichnet, daß das Federblatt (7) von einer U-förmigen Feder (11) ausgebildet wird.Screwing tool according to one or more of the preceding claims or in particular according thereto, characterized in that the spring leaf (7) is formed by a U-shaped spring (11). Schraubwerkzeug nach einem oder mehreren der vorhergehenden Ansprüche oder insbesondere danach, dadurch gekennzeichnet, daß der Taster (6) zwischen dem Stift (5) und der Schwenkachse (S) angeordnet ist.Screwing tool according to one or more of the preceding claims or in particular according thereto, characterized in that the button (6) is arranged between the pin (5) and the pivot axis (S). Schraubwerkzeug nach einem oder mehreren der vorhergehenden Ansprüche oder insbesondere danach, dadurch gekennzeichnet, daß der Taster (6) in der Schwenkendstellung von einer Anschlagkante (19) oder dergleichen des Handgriffes (2) beaufschlagt wird.Screwing tool according to one or more of the preceding claims or in particular according thereto, characterized in that the button (6) is acted upon by a stop edge (19) or the like of the handle (2) in the pivoting end position. Schraubwerkzeug nach einem oder mehreren der vorhergehenden Ansprüche oder insbesondere danach, dadurch gekennzeichnet, daß die Schwenkendstellung einer Winkelstellung von mehr als 90° entspricht.Screwing tool according to one or more of the preceding claims or in particular according thereto, characterized in that the swivel end position corresponds to an angular position of more than 90 °. Schraubwerkzeug nach einem oder mehreren der vorhergehenden Ansprüche oder insbesondere danach, dadurch gekennzeichnet, daß der Handgriff (2) in der Schwenkendstellung nicht feststellbar ist.Screwing tool according to one or more of the preceding claims or in particular according thereto, characterized in that the handle (2) cannot be locked in the swivel end position.
EP96111745A 1995-07-25 1996-07-22 Screwing tool Expired - Lifetime EP0755757B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SI9630124T SI0755757T1 (en) 1995-07-25 1996-07-22 Screwing tool

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19526968A DE19526968A1 (en) 1995-07-25 1995-07-25 Screwdriver
DE19526968 1995-07-25

Publications (2)

Publication Number Publication Date
EP0755757A1 true EP0755757A1 (en) 1997-01-29
EP0755757B1 EP0755757B1 (en) 1999-12-29

Family

ID=7767628

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96111745A Expired - Lifetime EP0755757B1 (en) 1995-07-25 1996-07-22 Screwing tool

Country Status (6)

Country Link
EP (1) EP0755757B1 (en)
AT (1) ATE188161T1 (en)
DE (2) DE19526968A1 (en)
DK (1) DK0755757T3 (en)
ES (1) ES2139996T3 (en)
SI (1) SI0755757T1 (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998045093A1 (en) * 1997-04-05 1998-10-15 Eduard Wille Gmbh & Co. Shell-type tool for slipping on an actuating tool and actuating tool therefor
EP0908274A1 (en) * 1997-10-10 1999-04-14 Hazet-Werk Hermann Zerver GmbH & Co. KG Socket prolongation
EP0962287A1 (en) * 1998-06-04 1999-12-08 Facom Driving device with locking mechanism
CN103358258A (en) * 2013-07-12 2013-10-23 浙江拓进五金工具有限公司 Multifunctional ratchet spanner binding tool
EP3461587A4 (en) * 2016-12-13 2020-01-22 Wei Chins Plastic Enterprise Corp. Insulated multi-angle ratchet wheel screwdriver
USD1002309S1 (en) 2020-12-30 2023-10-24 Milwaukee Electric Tool Corporation Wrench

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010064663B4 (en) 2010-04-30 2024-02-29 Wolf-Dietrich Zander Arrangement and tool for transmitting torque

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US3924493A (en) * 1974-10-21 1975-12-09 John Penner Quick release extension shaft for socket wrenches
FR2482842A1 (en) * 1980-05-20 1981-11-27 Stengel Heinz NECESSARY TO BE CRIMPED COMPRISING BRUSHES FOR WINDING HAIR BUCKLES
US4508005A (en) * 1983-12-19 1985-04-02 Snap-On Tools Corporation Quick release mechanism for ratchet wrench
US4829857A (en) * 1987-02-25 1989-05-16 Jones Arlan N Quick change handle for tools
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Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998045093A1 (en) * 1997-04-05 1998-10-15 Eduard Wille Gmbh & Co. Shell-type tool for slipping on an actuating tool and actuating tool therefor
EP0908274A1 (en) * 1997-10-10 1999-04-14 Hazet-Werk Hermann Zerver GmbH & Co. KG Socket prolongation
US6119559A (en) * 1997-10-10 2000-09-19 Hazet-Werk Hermann Zerver Gmbh & Co. Kg Socket wrench extension
EP0962287A1 (en) * 1998-06-04 1999-12-08 Facom Driving device with locking mechanism
FR2779374A1 (en) * 1998-06-04 1999-12-10 Facom DRIVE TOOL WITH LOCKING MECHANISM
US6145416A (en) * 1998-06-04 2000-11-14 Facom Drive tool equipped with a locking mechanism
CN103358258A (en) * 2013-07-12 2013-10-23 浙江拓进五金工具有限公司 Multifunctional ratchet spanner binding tool
CN103358258B (en) * 2013-07-12 2015-06-10 浙江拓进五金工具有限公司 Multifunctional ratchet spanner binding tool
EP3461587A4 (en) * 2016-12-13 2020-01-22 Wei Chins Plastic Enterprise Corp. Insulated multi-angle ratchet wheel screwdriver
USD1002309S1 (en) 2020-12-30 2023-10-24 Milwaukee Electric Tool Corporation Wrench

Also Published As

Publication number Publication date
SI0755757T1 (en) 2000-04-30
DE19526968A1 (en) 1997-01-30
EP0755757B1 (en) 1999-12-29
ATE188161T1 (en) 2000-01-15
DE59604016D1 (en) 2000-02-03
ES2139996T3 (en) 2000-02-16
DK0755757T3 (en) 2000-06-19

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