EP2163358B1 - Supplementary handle for a manual tool machine - Google Patents

Supplementary handle for a manual tool machine Download PDF

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Publication number
EP2163358B1
EP2163358B1 EP09168070A EP09168070A EP2163358B1 EP 2163358 B1 EP2163358 B1 EP 2163358B1 EP 09168070 A EP09168070 A EP 09168070A EP 09168070 A EP09168070 A EP 09168070A EP 2163358 B1 EP2163358 B1 EP 2163358B1
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EP
European Patent Office
Prior art keywords
pivot
arrangement
supplementary handle
mounting shaft
axis
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EP09168070A
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German (de)
French (fr)
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EP2163358A1 (en
Inventor
Paul Martin
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Hilti AG
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Hilti AG
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Publication of EP2163358A1 publication Critical patent/EP2163358A1/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25F—COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR
    • B25F5/00—Details or components of portable power-driven tools not particularly related to the operations performed and not otherwise provided for
    • B25F5/02—Construction of casings, bodies or handles
    • B25F5/025—Construction of casings, bodies or handles with torque reaction bars for rotary tools
    • B25F5/026—Construction of casings, bodies or handles with torque reaction bars for rotary tools in the form of an auxiliary handle

Definitions

  • the invention relates to an auxiliary handle for a hand tool according to the preamble of claim 1 and as from EP 1 974 867 A1 or from the DE 10 2006 0550 14 A1 known.
  • auxiliary handles are provided as side handles, for example, on a housing section device side adjacent to the tool holder for guiding the machine tool, if necessary.
  • the handle element of the auxiliary handle In order to guide the machine tool optimally and to allow different grip positions on the machine tool, which ensures a fatigue-poor working, it is known to design the handle element of the auxiliary handle about a pivot axis pivotable.
  • the pivot joint allows pivoting of the handle member relative to the clamping portion, whereby the center of gravity of the power tool is displaced relative to the user.
  • the handle element of the auxiliary handle is often adjusted during use of the machine tool.
  • the handle element of the auxiliary handle in the blocking position of the pivot joint is not unintentionally adjustable, usually intermeshing teeth are provided, for example, between the clamping portion and the handle member. For a pivoting of the grip element, this toothing must be repealed and then restored, which is a considerable amount of time.
  • an auxiliary handle for a hand tool is known, the clamp as a clamping section for fixing the auxiliary handle on having a portion of the power tool. Furthermore, the auxiliary handle has a grip element for gripping and holding the auxiliary handle. Between the clamping portion and the handle member a blockable pivot joint is arranged, which has a bearing pin with a longitudinal axis forming the pivot axis. Further, an operating knob is provided as a clamping element for clamping and releasing the clamping portion, wherein the actuating knob is disposed at one end of the bearing pin and engages an externally threaded portion of the bearing pin.
  • a cone-shaped, elastically deformable engagement element is provided, wherein the outer surface of the engagement element can be brought into frictional engagement with a conically widened recess in the section of the grip element.
  • Mutually facing teeth between the clamping portion and the handle member form the locking means for blocking or releasing the pivot joint.
  • a disadvantage of the known solution is that to release the pivot joint as to release the tension of the clamping portion continues to require a large number of revolutions of the Verspannelements.
  • the object of the invention is to provide an auxiliary handle for a hand tool that does not have the aforementioned disadvantages and allows a simple and quick repositioning or removal of the auxiliary handle and pivotability of the handle member.
  • an independent of the bracing quick release device for the locking device and the clamping portion for transferring the locking device is provided in the position releasing the pivot joint and for releasing the tension of the clamping portion.
  • the quick-release device is actuated, the pivot joint is released at the same time and the tension of the clamping section is released.
  • the handle element relative to the clamping portion and on the other hand, the additional handle to the Working axis of the power tool around swivel. Since the quick-release device is independent of the Verspannelement, no tedious revolutions of, for example, designed as an operating knob Verspannements are more necessary.
  • the quick release device is advantageously designed such that the bearing pin is easily axially fixable in the quick release device for a renewed distortion of the clamping portion and for a new blocking of the pivot joint.
  • the quick-release device has a fixing device for axially fixing the bearing pin and an actuating member acting on the fixing device for releasing the bearing pin by the fixing device.
  • the actuating member which is advantageous executable only with one finger of a hand, the axial fixation of the bearing pin is released, so that the bearing pin is axially displaceable.
  • the pivot joint is released and the tension of the clamping portion, such as the tension of a tension band, solved.
  • the actuating member is provided at the end opposite the end with the clamping element of the bearing pin, which allows an advantageous embodiment and thus an advantageous production of the auxiliary handle, wherein a simple operation of the quick release device is ensured.
  • the actuator comprises a pushbutton axially displaceable along the pivot axis of the pivot joint, whereby the quick release device is easy to operate and executable.
  • the fixing device preferably has at least one pivotable element which can be deflected radially with respect to the pivot axis of the pivot joint, with a locking section which can be brought into contact with the bearing pin and with a control section which can be brought into contact with the actuating element.
  • this acts on the control section on the pivot member, wherein the locking portion is brought out of engagement with the bearing pin, so that the bearing pin is axially displaceable and thus the auxiliary handle is released.
  • the bearing pin is also easily re-axially fixed, since this can be introduced only with its end facing away from the bracing in the fixing device.
  • the at least one pivoting element is mounted at a pivot point, such as on a pivot bearing, which is advantageously provided between the control section and the locking section.
  • a pivot point such as on a pivot bearing, which is advantageously provided between the control section and the locking section.
  • the actuator Upon actuation of the actuator is the ArretismesabĂȘt of at least one pivoting element pivoted in an advantageous manner radially outward. After the pivoting of the at least one pivoting element in the previous position of the bearing pin is again axially fixed.
  • the fixing device has a plurality of radially deflectable pivot elements, which are advantageous circumferentially evenly distributed, are arranged radially outward to the pivot axis, which is in a simple manner a sufficiently large contact surface for the axial fixation of the bearing pin available.
  • a spring element which spring-loaded the locking portion of the at least one pivoting element in the direction of the pivot axis.
  • the spring element for example, a ring made of a resilient material, such as a rubber or steel spring ring, or a separate radially inwardly or radially outwardly acting resilient element acts as a return element for the at least one pivot element, so that the at least one pivoting element automatically in his Fixing position for axial fixation of the bearing pin is forced.
  • the spring element ensures concentric holding together thereof.
  • the bearing bolts are at least partially provided with an outer profile and the at least one pivoting element at its locking portion with a profiling engageable with the outer profiling, whereby the engagement of the parts with each other and the holding force of the fixation is increased.
  • the outer profiling of the bearing pin an external thread and the profiling of the locking portion of the at least one pivot member is formed as a partial thread, which is further advantageous complementary to the external thread of the bearing pin.
  • the at least one pivot element assumes the function of a threaded nut. This function as a thread is taken over in particular in one embodiment of the fixing device, which has a plurality of radially deflectable and radially outside the pivot axis arranged pivot elements.
  • the outer profiling of the bearing pin and / or the profiling on the locking portion of the at least one pivoting element is a sawtooth thread.
  • the free end of the bearing pin with the outer profiling can be easily inserted into the fixing device, for example, in the arrangement of the auxiliary handle on the power tool, each thread engages the threaded portion of the at least one pivot member.
  • each thread engages the threaded portion of the at least one pivot member.
  • the fixing device has a guide element with at least one radially outwardly directed, towards the pivot axis open guide recess for guiding the at least one radially deflectable pivot member, whereby the at least one pivot element is guided during the displacement of the fixing position in the release position of the bearing pin.
  • the number of guide recesses in the guide element corresponds at least to the number of radially deflectable pivot elements which has the fixing device.
  • FIG. 1 is a hand tool 7 with an inventive additional handle 11 shown as a side handle, which is releasably secured to a cylindrical portion 8 of the power tool 7.
  • the auxiliary handle 11 has a handle member 31 for gripping and holding the auxiliary handle 11, which is pivotable about a pivot axis 12 to the working axis 9 of the power tool 7 back to adjust the handle positions on the power tool 7, if necessary.
  • the auxiliary handle 11, as he in the FIGS. 2 to 4 is shown, for fixing to the power tool 7 on a clamping portion 21 which comprises a clamping band 22.
  • the ends of the tension band 22 are held in two clamping parts 23 and 25.
  • the grip element 31 of the auxiliary handle 11 which is substantially U-shaped or D-shaped, has a base 32 and two legs 33 and 38 projecting from the base 32, respectively.
  • On the leg 33 is a first, the other leg 38th facing bearing portion 34 is provided.
  • On the other leg 38 a second, the leg 33 facing bearing portion 39 is provided.
  • a lockable pivot joint 46 is provided, which has a bearing pin 47 with a pivot axis 12 forming the longitudinal axis.
  • the ends of the tension band 22, the clamping parts 23 and 25 and the bearing portions 34 and 39 are penetrated by the bearing pin 47, so that they form each joint sleeves of the pivot joint 46.
  • a knob as a clamping element 51 for clamping and releasing the clamping portion 21 is rotatably fixed at one end 48 of the bearing pin 47 in the region of the leg 38.
  • a locking device 41 for blocking or releasing the pivot joint 46 is provided.
  • the mutually facing contact surfaces of the clamping parts 23 and 25 and the bearing portions 34 and 39 are provided with serrations and counter teeth, which engage in the clamped state of the auxiliary handle 11.
  • a quick release device 56 is provided on a portion of the handle member 31 in the region of the first bearing portion 34, which is arranged at the end 48 of the Verspannelement 51 opposite end 49 of the bearing pin 47.
  • the quick release device 56 has a fixing device 57 for axially fixing the bearing pin 47 and an actuator 62 acting on the fixing device 57 for releasing the bearing pin 47 by the fixing device 57.
  • the actuating member 62 is a pushbutton axially displaceable along the pivot axis 12, upon actuation of which the fixing device 57 can be displaced from a fixing position engaged with the bearing pin 47 for the axial fixing of the bearing pin 47 into a release position for releasing the bearing pin 47.
  • In the release position of the fixing device 57 of the bearing pin 47 is axially displaceable, wherein the tension of the clamping portion as well as the blocking of the pivot joint 46 is solved simultaneously.
  • the fixing device 57 comprises three, with respect to the pivot axis 12 of the pivot joint 46 radially deflectable, radially outward to the pivot axis 12 and circumferentially uniformly distributed evenly distributed pivot members 58, each one engageable with the bearing pin 47 in abutment locking portion 59 and one with the actuator 62nd have engageable control section 60.
  • each Swivel element 58 has between its locking portion 59 and its control portion 60 a pivot bearing 61 about which the corresponding pivot member 58 is pivotable.
  • a groove for a radially encircling rubber ring is provided as a spring element 66 which spring the detent 59 of the pivot members 58 in the direction of the pivot axis 12 and the pivot elements 58 in the fixing position for the axial fixation of the bearing pin 47 forces.
  • the fixing device 57 further has a guide element 63 with three radially outwardly directed, to the pivot axis 12 toward open guide recesses 64 for guiding the radially deflectable pivot elements 58.
  • the bearing pin 47 is provided at its the fixing device 57 facing the end 49 partially with an external profile in the form of a Sge leopardgewindes.
  • the pivoting elements 58 are provided at their locking sections 59 with a profiling which can be brought into engagement with the external profiling and which is likewise designed as a sawtooth threaded section.
  • the clamping band is placed around the corresponding section 8 of the power tool 7 and then the bearing pin 47 is inserted in the direction of the leg 33 of the handle member 31 in the fixing device 56.
  • the pivot elements 58 deviate radially outward. Due to the spring action of the same but they rest continuously with their profiling in the outer profiling on the bearing pin 47 a. With a few, usually with only one revolution of the Verspannements 51 of the auxiliary handle 11 is fixed to the power tool 7.
  • the actuator 62 is offset by pressure in the direction of the arrow 16 and in the direction of the clamping portion 21 axially along the pivot axis 12.
  • the actuating member 62 acts on the control sections 60 of the pivot elements 58, the locking sections 59 due to pivot this radially outward relative movement.
  • the quick release device 56, the pivot joint 46 is released and the tension of the clamping portion 21 is released.
  • the auxiliary handle 11 can be realigned in this position of the quick release device 56 in its orientation with respect to the power tool 7 or removed from this.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Clamps And Clips (AREA)
  • Percussive Tools And Related Accessories (AREA)
  • Earth Drilling (AREA)
  • Massaging Devices (AREA)
  • Table Equipment (AREA)
  • Walking Sticks, Umbrellas, And Fans (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
  • Surgical Instruments (AREA)

Abstract

The auxiliary handle (11) has a grasping element (31) for holding the auxiliary handle, and a bracing element for bracing and loosening the clamping section (21), which is arranged at an end of the bearing pin. A quick-releasing device is provided for the locking device. The quick-releasing device is independent of the bracing element. The clamping section is provided for transferring the locking device in the position releasing the swivel joint and for releasing the tensioning of the clamping section.

Description

Die Erfindung betrifft einen Zusatzhandgriff fĂŒr eine Handwerkzeugmaschine nach dem Oberbegriff von Anspruch 1 und wie aus der EP 1 974 867 A1 oder aus der DE 10 2006 0550 14 A1 bekannt.The invention relates to an auxiliary handle for a hand tool according to the preamble of claim 1 and as from EP 1 974 867 A1 or from the DE 10 2006 0550 14 A1 known.

An handgefĂŒhrten Werkzeugmaschinen werden derartige Zusatzhandgriffe als Seitenhandgriffe beispielsweise an einem GehĂ€useabschnitt gerĂ€teseitig benachbart zur Werkzeugaufnahme zur FĂŒhrung der Werkzeugmaschine bedarfsweise vorgesehen. Um die Werkzeugmaschine optimal zu fĂŒhren und verschiedene Griffpositionen an der Werkzeugmaschine zu ermöglichen, was ein ermĂŒdungsĂ€rmeres Arbeiten gewĂ€hrleistet, ist es bekannt, das Griffelement des Zusatzhandgriffs um eine Schwenkachse verschwenkbar auszugestalten. Das Schwenkgelenk erlaubt ein Verschwenken des Griffelements relativ zum Klemmabschnitt, wodurch der Schwerpunkt der Handwerkzeugmaschine relativ zum Anwender verlagert wird. Das Griffelement des Zusatzhandgriffs wird hĂ€ufig wĂ€hrend der Nutzung der Werkzeugmaschine verstellt.On hand-held machine tools such auxiliary handles are provided as side handles, for example, on a housing section device side adjacent to the tool holder for guiding the machine tool, if necessary. In order to guide the machine tool optimally and to allow different grip positions on the machine tool, which ensures a fatigue-poor working, it is known to design the handle element of the auxiliary handle about a pivot axis pivotable. The pivot joint allows pivoting of the handle member relative to the clamping portion, whereby the center of gravity of the power tool is displaced relative to the user. The handle element of the auxiliary handle is often adjusted during use of the machine tool.

Damit das Griffelement des Zusatzhandgriffs in der Blockierstellung des Schwenkgelenks nicht unbeabsichtigt verstellbar ist, sind ĂŒblicherweise ineinander greifende Verzahnungen beispielsweise zwischen dem Klemmabschnitt und dem Griffelement vorgesehen. FĂŒr ein Verschwenken des Griffelements muss diese Verzahnung aufgehoben und anschliessend wiederhergestellt werden, was einen erheblichen Zeitaufwand darstellt.Thus, the handle element of the auxiliary handle in the blocking position of the pivot joint is not unintentionally adjustable, usually intermeshing teeth are provided, for example, between the clamping portion and the handle member. For a pivoting of the grip element, this toothing must be repealed and then restored, which is a considerable amount of time.

Aus der DE 10 2006 055 524 A1 ist ein Zusatzhandgriff fĂŒr eine Handwerkzeugmaschine bekannt, der eine Klemmschelle als Klemmabschnitt zum Festlegen des Zusatzhandgriffs an einem Abschnitt der Handwerkzeugmaschine aufweist. Weiter weist der Zusatzhandgriff ein Griffelement zum Ergreifen und Halten des Zusatzhandgriffs auf. Zwischen dem Klemmabschnitt und dem Griffelement ist ein blockierbares Schwenkgelenk angeordnet, das einen Lagerbolzen mit einer die Schwenkachse bildenden LĂ€ngsachse aufweist. Weiter ist ein BetĂ€tigungsknopf als Verspannelement zum Verspannen und Lösen des Klemmabschnitts vorgesehen, wobei der BetĂ€tigungsknopf an einem Ende des Lagerbolzens angeordnet ist und an einem Aussengewindeabschnitt des Lagerbolzens angreift. Zwischen dem Verspannelement und einem Abschnitt des Griffelementes ist ein konusförmiges, elastisch verformbares Eingriffselement vorgesehen, wobei die AussenflĂ€che des Eingriffselements mit einer konisch erweiterten Ausnehmung im Abschnitt des Griffelementes in reibschlĂŒssiger Anlage bringbar ist. Einander zugewandte Verzahnungen zwischen dem Klemmabschnitt und dem Griffelement bilden die Sperreinrichtung zum Blockieren beziehungsweise Freigeben des Schwenkgelenks.From the DE 10 2006 055 524 A1 an auxiliary handle for a hand tool is known, the clamp as a clamping section for fixing the auxiliary handle on having a portion of the power tool. Furthermore, the auxiliary handle has a grip element for gripping and holding the auxiliary handle. Between the clamping portion and the handle member a blockable pivot joint is arranged, which has a bearing pin with a longitudinal axis forming the pivot axis. Further, an operating knob is provided as a clamping element for clamping and releasing the clamping portion, wherein the actuating knob is disposed at one end of the bearing pin and engages an externally threaded portion of the bearing pin. Between the tensioning element and a portion of the grip element, a cone-shaped, elastically deformable engagement element is provided, wherein the outer surface of the engagement element can be brought into frictional engagement with a conically widened recess in the section of the grip element. Mutually facing teeth between the clamping portion and the handle member form the locking means for blocking or releasing the pivot joint.

Mit dieser Ausgestaltung eines Zusatzhandgriffs wird die erforderliche Anzahl von Umdrehungen des Verspannelements zum Blockieren sowie zum Freigeben des Schwenkgelenks und zum Verspannen sowie zum Lösen des Klemmabschnitts gegenĂŒber einem Zusatzhandgriff ohne ein verformbares Eingriffselement reduziert.With this embodiment of an additional handle, the required number of revolutions of the Verspannelements for blocking and for releasing the pivot joint and for clamping and for releasing the clamping portion against an additional handle without a deformable engagement element is reduced.

Nachteilig an der bekannten Lösung ist, dass zum Freigeben des Schwenkgelenks wie zum Lösen der Verspannung des Klemmabschnitts weiterhin eine grosse Anzahl von Umdrehungen des Verspannelements erforderlich ist.A disadvantage of the known solution is that to release the pivot joint as to release the tension of the clamping portion continues to require a large number of revolutions of the Verspannelements.

Aufgabe der Erfindung ist es, einen Zusatzhandgriff fĂŒr eine Handwerkzeugmaschine zu schaffen, der die vorgenannten Nachteile nicht aufweist sowie eine einfache und schnelle Umpositionierung beziehungsweise Entfernung des Zusatzhandgriffs sowie Verschwenkbarkeit des Griffelements erlaubt.The object of the invention is to provide an auxiliary handle for a hand tool that does not have the aforementioned disadvantages and allows a simple and quick repositioning or removal of the auxiliary handle and pivotability of the handle member.

Die Aufgabe ist durch die Merkmale des unabhĂ€ngigen Anspruchs gelöst. Vorteilhafte Weiterbildungen sind in den UnteransprĂŒchen dargelegt.The object is solved by the features of the independent claim. Advantageous developments are set forth in the subclaims.

GemĂ€ss der Erfindung ist eine von dem Verspannelement unabhĂ€ngige Schnelllöseeinrichtung fĂŒr die Sperreinrichtung und den Klemmabschnitt zum ÜberfĂŒhren der Sperreinrichtung in die das Schwenkgelenk freigebende Stellung und zum Lösen der Verspannung des Klemmabschnitts vorgesehen.According to the invention, an independent of the bracing quick release device for the locking device and the clamping portion for transferring the locking device is provided in the position releasing the pivot joint and for releasing the tension of the clamping portion.

Wird die Schnelllöseeinrichtung betĂ€tigt, wird gleichzeitig das Schwenkgelenk freigegeben und die Verspannung des Klemmabschnitts gelöst. In der gelösten Stellung sind einerseits das Griffelement relativ zum Klemmabschnitt und andererseits der Zusatzhandgriff um die Arbeitsachse der Handwerkzeugmaschine herum verschwenkbar. Da die Schnelllöseeinrichtung unabhĂ€ngig von dem Verspannelement ist, sind keine mĂŒhsamen Umdrehungen des beispielsweise als BetĂ€tigungsknopf ausgebildeten Verspannelementes mehr erforderlich. Die Schnelllöseeinrichtung ist vorteilhaft derart ausgebildet, dass der Lagerbolzen fĂŒr ein erneutes Verspannen des Klemmabschnitts und fĂŒr ein erneutes Blockieren des Schwenkgelenks einfach in der Schnelllöseeinrichtung wieder axial fixierbar ist.If the quick-release device is actuated, the pivot joint is released at the same time and the tension of the clamping section is released. In the released position, on the one hand the handle element relative to the clamping portion and on the other hand, the additional handle to the Working axis of the power tool around swivel. Since the quick-release device is independent of the Verspannelement, no tedious revolutions of, for example, designed as an operating knob Verspannelementes are more necessary. The quick release device is advantageously designed such that the bearing pin is easily axially fixable in the quick release device for a renewed distortion of the clamping portion and for a new blocking of the pivot joint.

ErfindungsgemĂ€ĂŸ weist die Schnelllöseeinrichtung eine Fixiereinrichtung zum axialen Fixieren des Lagerbolzens und ein auf die Fixiereinrichtung einwirkendes BetĂ€tigungsorgan zur Freigabe des Lagerbolzens durch die Fixiereinrichtung auf. Bei BetĂ€tigung des BetĂ€tigungsorgans, welches vorteilhaft nur mit einem Finger einer Hand ausfĂŒhrbar ist, wird die axiale Fixierung des Lagerbolzens aufgehoben, so dass der Lagerbolzen axial versetzbar ist. Dadurch wird gleichzeitig das Schwenkgelenk freigegeben und die Verspannung des Klemmabschnitts, wie beispielsweise die Verspannung eines Spannbandes, gelöst.According to the invention, the quick-release device has a fixing device for axially fixing the bearing pin and an actuating member acting on the fixing device for releasing the bearing pin by the fixing device. Upon actuation of the actuating member, which is advantageous executable only with one finger of a hand, the axial fixation of the bearing pin is released, so that the bearing pin is axially displaceable. As a result, at the same time the pivot joint is released and the tension of the clamping portion, such as the tension of a tension band, solved.

ErfindungsgemĂ€ĂŸ ist das BetĂ€tigungsorgan an dem, dem Ende mit dem Verspannelement gegenĂŒberliegenden Ende des Lagerbolzens vorgesehen, was eine vorteilhafte Ausbildung und somit eine vorteilhafte Herstellung des Zusatzhandgriffs ermöglicht, wobei eine einfache BetĂ€tigung der Schnelllöseeinrichtung gewĂ€hrleistet ist.According to the invention, the actuating member is provided at the end opposite the end with the clamping element of the bearing pin, which allows an advantageous embodiment and thus an advantageous production of the auxiliary handle, wherein a simple operation of the quick release device is ensured.

Vorzugsweise umfasst das BetĂ€tigungsorgan einen entlang der Schwenkachse des Schwenkgelenks axial versetzbaren Druckknopf, womit die Schnelllöseeinrichtung einfach betĂ€tigbar sowie ausfĂŒhrbar ist.Preferably, the actuator comprises a pushbutton axially displaceable along the pivot axis of the pivot joint, whereby the quick release device is easy to operate and executable.

Bevorzugt weist die Fixiereinrichtung zumindest ein in Bezug auf die Schwenkachse des Schwenkgelenks radial auslenkbares Schwenkelement mit einem mit dem Lagerbolzen in Anlage bringbaren Arretierungsabschnitt sowie mit einem mit dem BetĂ€tigungsorgan in Anlage bringbaren Steuerabschnitt auf. Bei BetĂ€tigung des BetĂ€tigungsorgans wirkt dieses ĂŒber die Steuerabschnitt auf das Schwenkelement, wobei dessen Arretierungsabschnitt mit dem Lagerbolzen ausser Anlage gebracht wird, so dass der Lagerbolzen axial verschieblich und somit der Zusatzhandgriff gelöst ist. Mit einer derartigen Fixiereinrichtung ist der Lagerbolzen zudem einfach erneut axial fixierbar, da dieser dazu nur mit seinem dem Verspannelement abgewandten Ende in die Fixiereinrichtung eingefĂŒhrt werden kann.The fixing device preferably has at least one pivotable element which can be deflected radially with respect to the pivot axis of the pivot joint, with a locking section which can be brought into contact with the bearing pin and with a control section which can be brought into contact with the actuating element. Upon actuation of the actuator this acts on the control section on the pivot member, wherein the locking portion is brought out of engagement with the bearing pin, so that the bearing pin is axially displaceable and thus the auxiliary handle is released. With such a fixing device, the bearing pin is also easily re-axially fixed, since this can be introduced only with its end facing away from the bracing in the fixing device.

Vorteilhaft ist das zumindest eine Schwenkelement an einem Drehpunkt, wie beispielsweise an einem Drehlager, gelagert, der vorteilhaft zwischen dem Steuerabschnitt und dem Arretierungsabschnitt vorgesehen ist. Bei der BetÀtigung des BetÀtigungsorgans wird der Arretierungsabschnitt des zumindest einen Schwenkelements in vorteilhafter Weise nach radial aussen verschwenkt. Nach dem Verschwenken des zumindest einen Schwenkelements in die vorherige Stellung ist der Lagerbolzen erneut axial fixierbar.Advantageously, the at least one pivoting element is mounted at a pivot point, such as on a pivot bearing, which is advantageously provided between the control section and the locking section. Upon actuation of the actuator is the Arretierungsabschnitt of at least one pivoting element pivoted in an advantageous manner radially outward. After the pivoting of the at least one pivoting element in the previous position of the bearing pin is again axially fixed.

Vorzugsweise weist die Fixiereinrichtung mehrere radial auslenkbare Schwenkelemente auf, die vorteilhaft umfĂ€nglich gleichmĂ€ssig verteilt, radial aussen zur Schwenkachse angeordnet sind, womit in einfacher Weise eine ausreichend grosse KontaktflĂ€che zur axialen Fixierung des Lagerbolzens zur VerfĂŒgung steht.Preferably, the fixing device has a plurality of radially deflectable pivot elements, which are advantageous circumferentially evenly distributed, are arranged radially outward to the pivot axis, which is in a simple manner a sufficiently large contact surface for the axial fixation of the bearing pin available.

Bevorzugt ist ein Federelement vorgesehen, welches den Arretierungsabschnitt des zumindest einen Schwenkelements in Richtung der Schwenkachse federbeaufschlagt. Das Federelement, beispielsweise ein Ring aus einem federelastischen Material, wie ein Gummi- oder Stahlfederring, oder ein separates nach radial innen oder nach radial aussen wirkendes federelastisches Element, wirkt als RĂŒckstellelement fĂŒr das zumindest eine Schwenkelement, so dass das zumindest eine Schwenkelement automatisch in seine Fixierstellung zur axialen Fixierung des Lagerbolzens gezwungen wird. Insbesondere bei einer Fixiereinrichtung mit mehreren radial auslenkbaren Schwenkelementen stellt das Federelement ein konzentrisches Zusammenhalten derselben sicher.Preferably, a spring element is provided which spring-loaded the locking portion of the at least one pivoting element in the direction of the pivot axis. The spring element, for example, a ring made of a resilient material, such as a rubber or steel spring ring, or a separate radially inwardly or radially outwardly acting resilient element acts as a return element for the at least one pivot element, so that the at least one pivoting element automatically in his Fixing position for axial fixation of the bearing pin is forced. Particularly in the case of a fixing device with a plurality of radially deflectable pivoting elements, the spring element ensures concentric holding together thereof.

Vorzugsweise sind der Lagerbolzen zumindest bereichsweise mit einer Aussenprofilierung und das zumindest eine Schwenkelement an seinem Arretierungsabschnitt mit einer mit der Aussenprofilierung in Eingriff bringbare Profilierung versehen, womit der Eingriff der Teile miteinander und die Haltekraft der Fixierung erhöht ist.Preferably, the bearing bolts are at least partially provided with an outer profile and the at least one pivoting element at its locking portion with a profiling engageable with the outer profiling, whereby the engagement of the parts with each other and the holding force of the fixation is increased.

Vorteilhaft ist die Aussenprofilierung des Lagerbolzens ein Aussengewinde und die Profilierung dem Arretierungsabschnitt des zumindest einen Schwenkelements als Teilgewinde ausgebildet, welches weiter vorteilhaft komplementĂ€r zum Aussengewinde des Lagerbolzens ist. In dieser AusfĂŒhrungsform ĂŒbernimmt das zumindest eine Schwenkelement die Funktion einer Gewindemutter. Diese Funktion als Gewinde wird insbesondere in einer Ausgestaltung der Fixiereinrichtung ĂŒbernommen, die mehrere radial auslenkbare und radial aussen zur Schwenkachse angeordnete Schwenkelemente aufweist.Advantageously, the outer profiling of the bearing pin an external thread and the profiling of the locking portion of the at least one pivot member is formed as a partial thread, which is further advantageous complementary to the external thread of the bearing pin. In this embodiment, the at least one pivot element assumes the function of a threaded nut. This function as a thread is taken over in particular in one embodiment of the fixing device, which has a plurality of radially deflectable and radially outside the pivot axis arranged pivot elements.

Bevorzugt ist die Aussenprofilierung des Lagerbolzens und/oder die Profilierung an dem Arretierungsabschnitt des zumindest einen Schwenkelementes ein SĂ€gezahngewinde. Das freie Ende des Lagerbolzens mit der Aussenprofilierung lĂ€sst sich beispielsweise bei der Anordnung des Zusatzhandgriffs an der Handwerkzeugmaschine einfach in die Fixiereinrichtung einfĂŒhren, wobei jeder Gewindegang mit dem Gewindeabschnitt an dem zumindest einen Schwenkelement einrastet. Gleichzeitig wird durch die Ausbildung der Aussenprofilierung beziehungsweise der Profilierung als SĂ€gezahngewinde ein Öffnen unter Last noch sicherer verhindert.Preferably, the outer profiling of the bearing pin and / or the profiling on the locking portion of the at least one pivoting element is a sawtooth thread. The free end of the bearing pin with the outer profiling can be easily inserted into the fixing device, for example, in the arrangement of the auxiliary handle on the power tool, each thread engages the threaded portion of the at least one pivot member. At the same time, by training the External profiling or profiling as sawtooth thread even safer prevented opening under load.

Vorzugsweise weist die Fixiereinrichtung ein FĂŒhrungselement mit zumindest einer nach radial aussen gerichteten, zur Schwenkachse hin offenen FĂŒhrungsausnehmung zur FĂŒhrung des zumindest einen radial auslenkbaren Schwenkelement auf, womit das zumindest eine Schwenkelement wĂ€hrend dem Versetzen von der Fixierstellung in die Freigabestellung des Lagerbolzens gefĂŒhrt wird. Die Anzahl der FĂŒhrungsausnehmungen im FĂŒhrungselement entspricht mindestens der Anzahl der radial auslenkbaren Schwenkelemente, welche die Fixiereinrichtung aufweist.Preferably, the fixing device has a guide element with at least one radially outwardly directed, towards the pivot axis open guide recess for guiding the at least one radially deflectable pivot member, whereby the at least one pivot element is guided during the displacement of the fixing position in the release position of the bearing pin. The number of guide recesses in the guide element corresponds at least to the number of radially deflectable pivot elements which has the fixing device.

Die Erfindung wird nachstehend anhand eines AusfĂŒhrungsbeispiels nĂ€her erlĂ€utert. Es zeigen:

Fig. 1
Eine Handwerkzeugmaschine mit angeordnetem Zusatzhandgriff im Grundriss;
Fig. 2
einen Schnitt entlang der Schwenkachse durch den Zusatzhandgriff mit der Schnelllöseeinrichtung im fixierenden Zustand;
Fig. 3
die Schnelllöseeinrichtung gem. Fig. 2 im gelösten Zustand im Detailschnitt in einer vergrösserten Darstellung; und
Fig. 4
einen Querschnitt durch die Schnelllöseeinrichtung gem. Linie IV-IV in Fig. 2.
The invention will be explained in more detail below with reference to an embodiment. Show it:
Fig. 1
A hand tool with arranged additional handle in plan view;
Fig. 2
a section along the pivot axis through the auxiliary handle with the quick release device in the fixed state;
Fig. 3
the quick release device acc. Fig. 2 in the dissolved state in detail in an enlarged view; and
Fig. 4
a cross section through the quick release device acc. Line IV-IV in Fig. 2 ,

GrundsÀtzlich sind in den Figuren gleiche Teile mit den gleichen Bezugszeichen versehen.Basically, the same parts are provided with the same reference numerals in the figures.

In der Figur 1 ist eine Handwerkzeugmaschine 7 mit einem erfindungsgemÀssen Zusatzhandgriff 11 als Seitenhandgriff dargestellt, der an einem zylindrischen Abschnitt 8 der Handwerkzeugmaschine 7 lösbar festgelegt ist. Der Zusatzhandgriff 11 weist ein Griffelement 31 zum Ergreifen und Halten des Zusatzhandgriffs 11 auf, das um eine Schwenkachse 12 zur Arbeitsachse 9 der Handwerkzeugmaschine 7 hin verschwenkbar ist, um die Griffpositionen an der Handwerkzeugmaschine 7 bedarfsweise anzupassen.In the FIG. 1 is a hand tool 7 with an inventive additional handle 11 shown as a side handle, which is releasably secured to a cylindrical portion 8 of the power tool 7. The auxiliary handle 11 has a handle member 31 for gripping and holding the auxiliary handle 11, which is pivotable about a pivot axis 12 to the working axis 9 of the power tool 7 back to adjust the handle positions on the power tool 7, if necessary.

Der Zusatzhandgriff 11, wie er in den Figuren 2 bis 4 gezeigt ist, weist zur Festlegung an der Handwerkzeugmaschine 7 einen Klemmabschnitt 21 auf, der ein Spannband 22 umfasst. Die Enden des Spannbandes 22 sind in zwei Klemmteile 23 und 25 gehalten.The auxiliary handle 11, as he in the FIGS. 2 to 4 is shown, for fixing to the power tool 7 on a clamping portion 21 which comprises a clamping band 22. The ends of the tension band 22 are held in two clamping parts 23 and 25.

Das Griffelement 31 des Zusatzhandgriffs 11, das im Wesentlichen U- beziehungsweise D-förmig ausgebildet ist, weist eine Basis 32 und zwei jeweils von der Basis 32 abragende Schenkel 33 und 38 auf. An dem Schenkel 33 ist ein erster, dem anderen Schenkel 38 zugewandter Lagerabschnitt 34 vorgesehen. An dem anderen Schenkel 38 ist ein zweiter, dem Schenkel 33 zugewandter Lagerabschnitt 39 vorgesehen.The grip element 31 of the auxiliary handle 11, which is substantially U-shaped or D-shaped, has a base 32 and two legs 33 and 38 projecting from the base 32, respectively. On the leg 33 is a first, the other leg 38th facing bearing portion 34 is provided. On the other leg 38, a second, the leg 33 facing bearing portion 39 is provided.

Zwischen dem Klemmabschnitt 21 und dem Griffelement 31 ist ein blockierbares Schwenkgelenk 46 vorgesehen, das einen Lagerbolzen 47 mit einer die Schwenkachse 12 bildenden LĂ€ngsachse aufweist. Die Enden des Spannbandes 22, die Klemmteile 23 und 25 sowie die Lagerabschnitte 34 und 39 werden von dem Lagerbolzen 47 durchsetzt, so dass diese jeweils GelenkhĂŒlsen des Schwenkgelenks 46 ausbilden. Ein Drehknopf als Verspannelement 51 zum Verspannen und Lösen des Klemmabschnitts 21 ist an einem Ende 48 des Lagerbolzens 47 im Bereich des Schenkels 38 drehfest festgelegt.Between the clamping portion 21 and the handle member 31, a lockable pivot joint 46 is provided, which has a bearing pin 47 with a pivot axis 12 forming the longitudinal axis. The ends of the tension band 22, the clamping parts 23 and 25 and the bearing portions 34 and 39 are penetrated by the bearing pin 47, so that they form each joint sleeves of the pivot joint 46. A knob as a clamping element 51 for clamping and releasing the clamping portion 21 is rotatably fixed at one end 48 of the bearing pin 47 in the region of the leg 38.

Zwischen den Klemmteilen 23 und 25 und den Abschnitten 35 und 40 am freien Ende des ersten Lagerabschnitts 34 beziehungsweise am freien Ende des zweiten Lagerabschnitts 39 ist eine Sperreinrichtung 41 zum Blockieren beziehungsweise Freigeben des Schwenkgelenks 46 vorgesehen. FĂŒr einen formschlĂŒssigen Eingriff der Teile miteinander sind die einander zugewandten KontaktflĂ€chen der Klemmteile 23 und 25 sowie der Lagerabschnitte 34 und 39 mit Zahnungen und Gegenzahnungen versehen, welche im verspannten Zustand des Zusatzhandgriffs 11 ineinander greifen.Between the clamping parts 23 and 25 and the sections 35 and 40 at the free end of the first bearing portion 34 and at the free end of the second bearing portion 39 is a locking device 41 for blocking or releasing the pivot joint 46 is provided. For a positive engagement of the parts with each other, the mutually facing contact surfaces of the clamping parts 23 and 25 and the bearing portions 34 and 39 are provided with serrations and counter teeth, which engage in the clamped state of the auxiliary handle 11.

Weiter ist an einem Abschnitt des Griffelementes 31 im Bereich des ersten Lagerabschnitts 34 eine Schnelllöseeinrichtung 56 vorgesehen, die an dem, dem Ende 48 mit dem Verspannelement 51 gegenĂŒberliegenden Ende 49 des Lagerbolzens 47 angeordnet ist.Next, a quick release device 56 is provided on a portion of the handle member 31 in the region of the first bearing portion 34, which is arranged at the end 48 of the Verspannelement 51 opposite end 49 of the bearing pin 47.

Die Schnelllöseeinrichtung 56 weist eine Fixiereinrichtung 57 zum axialen Fixieren des Lagerbolzens 47 und ein auf die Fixiereinrichtung 57 einwirkendes BetÀtigungsorgan 62 zur Freigabe des Lagerbolzens 47 durch die Fixiereinrichtung 57 auf. Das BetÀtigungsorgan 62 ist ein entlang der Schwenkachse 12 axial versetzbarer Druckknopf, bei dessen BetÀtigung die Fixiereinrichtung 57 von einer mit dem Lagerbolzen 47 in Eingriff stehenden Fixierstellung zur axialen Fixierung des Lagerbolzens 47 in eine Freigabestellung zur Freigabe des Lagerbolzens 47 versetzbar ist. In der Freigabestellung der Fixiereinrichtung 57 ist der Lagerbolzen 47 axial verschieblich, wobei die Verspannung des Klemmabschnitts wie auch die Blockierung des Schwenkgelenks 46 gleichzeitig gelöst ist.The quick release device 56 has a fixing device 57 for axially fixing the bearing pin 47 and an actuator 62 acting on the fixing device 57 for releasing the bearing pin 47 by the fixing device 57. The actuating member 62 is a pushbutton axially displaceable along the pivot axis 12, upon actuation of which the fixing device 57 can be displaced from a fixing position engaged with the bearing pin 47 for the axial fixing of the bearing pin 47 into a release position for releasing the bearing pin 47. In the release position of the fixing device 57 of the bearing pin 47 is axially displaceable, wherein the tension of the clamping portion as well as the blocking of the pivot joint 46 is solved simultaneously.

Die Fixiereinrichtung 57 umfasst drei, in Bezug auf die Schwenkachse 12 des Schwenkgelenks 46 radial auslenkbare, radial aussen zur Schwenkachse 12 und vorteilhaft umfĂ€nglich gleichmĂ€ssig verteilt angeordnete Schwenkelemente 58, die jeweils einen mit dem Lagerbolzen 47 in Anlage bringbaren Arretierungsabschnitt 59 sowie einen mit dem BetĂ€tigungsorgan 62 in Anlage bringbaren Steuerabschnitt 60 aufweisen. Jedes Schwenkelement 58 weist zwischen seinem Arretierungsabschnitt 59 und seinem Steuerabschnitt 60 ein Drehlager 61 auf, um welches das entsprechende Schwenkelement 58 verschwenkbar ist. An dem, dem BetĂ€tigungsorgan 62 abgewandten Ende der Schwenkelemente 58 ist eine Nut fĂŒr einen radial umlaufend angeordneten Gummiring als Federelement 66 vorgesehen, welches den Arretierungsabschnitt 59 der Schwenkelemente 58 in Richtung der Schwenkachse 12 federbeaufschlagt und die Schwenkelemente 58 in die Fixierstellung zur axialen Fixierung des Lagerbolzens 47 zwingt.The fixing device 57 comprises three, with respect to the pivot axis 12 of the pivot joint 46 radially deflectable, radially outward to the pivot axis 12 and circumferentially uniformly distributed evenly distributed pivot members 58, each one engageable with the bearing pin 47 in abutment locking portion 59 and one with the actuator 62nd have engageable control section 60. each Swivel element 58 has between its locking portion 59 and its control portion 60 a pivot bearing 61 about which the corresponding pivot member 58 is pivotable. At the, the actuating member 62 remote from the end of the pivot elements 58, a groove for a radially encircling rubber ring is provided as a spring element 66 which spring the detent 59 of the pivot members 58 in the direction of the pivot axis 12 and the pivot elements 58 in the fixing position for the axial fixation of the bearing pin 47 forces.

Die Fixiereinrichtung 57 weist weiter ein FĂŒhrungselement 63 mit drei nach radial aussen gerichteten, zur Schwenkachse 12 hin offenen FĂŒhrungsausnehmungen 64 zur FĂŒhrung der radial auslenkbaren Schwenkelemente 58 auf.The fixing device 57 further has a guide element 63 with three radially outwardly directed, to the pivot axis 12 toward open guide recesses 64 for guiding the radially deflectable pivot elements 58.

Der Lagerbolzen 47 ist an seinem der Fixiereinrichtung 57 zugewandten Ende 49 bereichsweise mit einer Aussenprofilierung in Form eines SĂ€gezahngewindes versehen. Die Schwenkelemente 58 sind an ihren Arretierungsabschnitten 59 mit einer mit der Aussenprofilierung in Eingriff bringbare Profilierung versehen, welche ebenfalls als SĂ€gezahngewindeabschnitte ausgebildet ist.The bearing pin 47 is provided at its the fixing device 57 facing the end 49 partially with an external profile in the form of a SĂ€gezahngewindes. The pivoting elements 58 are provided at their locking sections 59 with a profiling which can be brought into engagement with the external profiling and which is likewise designed as a sawtooth threaded section.

Zur Anordnung des Zusatzgriffs 31 an der Handwerkzeugmaschine 7 wird das Spannband um den entsprechenden Abschnitt 8 der Handwerkzeugmaschine 7 gelegt und anschliessend der Lagerbolzen 47 in Richtung des Schenkels 33 des Griffelements 31 in die Fixiereinrichtung 56 eingeschoben. Dabei weichen die Schwenkelemente 58 nach radial aussen aus. Aufgrund der Federbeaufschlagung derselben rasten diese jedoch fortlaufend mit ihrer Profilierung in die Aussenprofilierung am Lagerbolzen 47 ein. Mit wenigen, zumeist mit nur einer Umdrehung des Verspannelementes 51 wird der Zusatzhandgriff 11 an der Handwerkzeugmaschine 7 festgelegt.To arrange the additional handle 31 on the power tool 7, the clamping band is placed around the corresponding section 8 of the power tool 7 and then the bearing pin 47 is inserted in the direction of the leg 33 of the handle member 31 in the fixing device 56. In this case, the pivot elements 58 deviate radially outward. Due to the spring action of the same but they rest continuously with their profiling in the outer profiling on the bearing pin 47 a. With a few, usually with only one revolution of the Verspannelementes 51 of the auxiliary handle 11 is fixed to the power tool 7.

Beim Verspannen des Klemmabschnitts 21 kommen die entsprechenden KontaktflÀchen der Klemmteile 23 und 25 sowie der Lagerabschnitte 34 und 39 in Anlage beziehungsweise in Eingriff. Der Zusatzhandgriff 11 ist auch in einem meisselnden Betrieb der Handwerkzeugmaschine 7 sicher an derselben gehalten.When clamping the clamping portion 21, the corresponding contact surfaces of the clamping parts 23 and 25 and the bearing portions 34 and 39 come into contact or in engagement. The auxiliary handle 11 is held securely in a chiseling operation of the power tool 7 on the same.

Zum Lösen der Verspannung des Klemmabschnitts 21 oder zur Freigabe des Schwenkgelenks 46, so dass das Griffelement 31 verschwenkbar ist (siehe Figur 1, gestrichelte Darstellung des Griffelementes 31), wird das BetÀtigungsorgan 62 durch Druck in Richtung des Pfeils 16 beziehungsweise in Richtung des Klemmabschnitts 21 axial entlang der Schwenkachse 12 versetzt. Dabei wirkt das BetÀtigungsorgan 62 auf die Steuerabschnitte 60 der Schwenkelemente 58 ein, deren Arretierungsabschnitte 59 aufgrund dieser Relativbewegung radial nach aussen verschwenken. In dieser Stellung der Schnelllöseeinrichtung 56 ist das Schwenkgelenk 46 freigegeben und die Verspannung des Klemmabschnitts 21 gelöst. Der Zusatzhandgriff 11 kann in dieser Stellung der Schnelllöseeinrichtung 56 in seiner Ausrichtung in Bezug auf die Handwerkzeugmaschine 7 neu ausgerichtet oder von dieser entfernt werden.To release the tension of the clamping portion 21 or to release the pivot joint 46, so that the grip member 31 is pivotable (see FIG. 1 , Dashed representation of the handle member 31), the actuator 62 is offset by pressure in the direction of the arrow 16 and in the direction of the clamping portion 21 axially along the pivot axis 12. In this case, the actuating member 62 acts on the control sections 60 of the pivot elements 58, the locking sections 59 due to pivot this radially outward relative movement. In this position, the quick release device 56, the pivot joint 46 is released and the tension of the clamping portion 21 is released. The auxiliary handle 11 can be realigned in this position of the quick release device 56 in its orientation with respect to the power tool 7 or removed from this.

Wird das BetÀtigungsorgan 62 losgelassen, verschwenken die federbeaufschlagten Schwenkelemente 58 wieder in ihre Fixierstellung zur axialen Fixierung des Lagerbolzens 47, welcher erneut in der Fixiereinrichtung 57 der Schnelllöseeinrichtung 56 axial fixierbar ist.If the actuator 62 is released, the spring-loaded pivot elements 58 pivot back into their fixing position for the axial fixing of the bearing pin 47, which is axially fixed again in the fixing device 57 of the quick release device 56.

Claims (8)

  1. Supplementary handle for a hand-held power tool (7), having a clamping section (21) for attaching the supplementary handle (11) to a portion of the hand-held power tool (7), having a handle member (31) for gripping the supplementary handle (11), having a lockable pivotable joint (46), arranged between the clamping section (21) and the handle member (31), which has a mounting shaft (47), having a tightening member (51), for tightening and loosening the clamping section (21), which is arranged at one end (48) of the mounting shaft (47), and having a locking arrangement (41) for locking and unlocking the pivotable joint (46), there being provided for the locking arrangement (41) and the clamping section (21) a quick-release arrangement (56) for transferring the locking arrangement (41) to the position in which the pivotable joint (46) is unlocked and for loosening the tightening of the clamping section (21), which quick-release arrangement (56) is independent of the tightening member (51), the quick-release arrangement (56) having a restraining arrangement (57) to restrain the mounting shaft (47) axially and an actuating member (62) acting on the restraining arrangement (57) for releasing the mounting shaft (47) by means of the restraining arrangement (57), characterised in that the actuating member (62) is provided at the opposite end (49) of the mounting shaft (47) from the end (48) which has the tightening member (51).
  2. Supplementary handle according to claim 1, characterised in that the actuating member (62) comprises a press-button which can be displaced axially along the axis of pivot (12) of the pivotable joint (46).
  3. Supplementary handle according to either of claims 1 and 2, characterised in that the restraining arrangement (57) has at least one pivoting member (58) which is able to be deflected radially relative to the axis of pivot (12) of the pivotable joint (46), the pivoting member (58) having a retaining portion (59) which can be brought to rest against the mounting shaft (47) and a controlling portion (60) which can be brought to rest against the actuating member (62).
  4. Supplementary handle according to claim 3, characterised in that the restraining arrangement (57) has a plurality of pivoting members (58) able to be deflected radially which are arranged radially outwards from the axis of pivot (12).
  5. Supplementary handle according to claim 3 or 4, characterised in that a resilient member (66) is provided which loads the retaining portion (59) of the at least one pivoting member (58) resiliently towards the axis of pivot (12).
  6. Supplementary handle according to one of claims 3 to 5, characterised in that the mounting shaft (47) is provided with external profiling at least in a region or regions and the at least one pivoting member (58) is provided on its retaining portion (59) with profiling which can be brought into engagement with the external profiling.
  7. Supplementary handle according to claim 6, characterised in that the external profiling on the mounting shaft (47) and/or the profiling on the retaining portion (59) of the at least one pivoting member (58) is a buttress thread.
  8. Supplementary handle according to one of claims 3 to 7, characterised in that the restraining arrangement (57) has a guiding member (63) having at least one guiding recess (64) for guiding the at least one pivoting member (58) which is able to be deflected radially, the guiding recess (64) being directed radially outwards and being open towards the axis of pivot (12).
EP09168070A 2008-09-15 2009-08-18 Supplementary handle for a manual tool machine Active EP2163358B1 (en)

Applications Claiming Priority (1)

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DE102008042113A DE102008042113A1 (en) 2008-09-15 2008-09-15 Additional handle for a hand tool

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EP2163358A1 EP2163358A1 (en) 2010-03-17
EP2163358B1 true EP2163358B1 (en) 2011-05-04

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US (1) US8186018B2 (en)
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AT (1) ATE507938T1 (en)
DE (2) DE102008042113A1 (en)
ES (1) ES2362258T3 (en)

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DE102006055524A1 (en) 2006-11-24 2008-05-29 Robert Bosch Gmbh Auxiliary handle for e.g. hammer drill, has actuating stud comprising elastically deformable engaging element brought into threaded engagement with clamping screw during contact with clamping bevel by engaging element
DE102007039245A1 (en) * 2006-11-24 2008-05-29 Robert Bosch Gmbh Additional handle with quick adjustment and wear-resistant anti-rotation elements
JP5000353B2 (en) * 2007-03-29 2012-08-15 æ ȘćŒäŒšç€Ÿăƒžă‚­ă‚ż Hand tool handle

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DE102008042113A1 (en) 2010-03-18
US20100064482A1 (en) 2010-03-18
ES2362258T3 (en) 2011-06-30
US8186018B2 (en) 2012-05-29
EP2163358A1 (en) 2010-03-17
DE502009000619D1 (en) 2011-06-16
ATE507938T1 (en) 2011-05-15

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