EP1318896B1 - Battery operated electric tool - Google Patents

Battery operated electric tool Download PDF

Info

Publication number
EP1318896B1
EP1318896B1 EP01951395A EP01951395A EP1318896B1 EP 1318896 B1 EP1318896 B1 EP 1318896B1 EP 01951395 A EP01951395 A EP 01951395A EP 01951395 A EP01951395 A EP 01951395A EP 1318896 B1 EP1318896 B1 EP 1318896B1
Authority
EP
European Patent Office
Prior art keywords
battery
electric tool
housing part
tool according
operated electric
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP01951395A
Other languages
German (de)
French (fr)
Other versions
EP1318896A1 (en
Inventor
Albrecht Hofmann
Harald Krondorfer
Markus Heckmann
Thomas Schomisch
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP1318896A1 publication Critical patent/EP1318896A1/en
Application granted granted Critical
Publication of EP1318896B1 publication Critical patent/EP1318896B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B23/00—Portable grinding machines, e.g. hand-guided; Accessories therefor
    • B24B23/02—Portable grinding machines, e.g. hand-guided; Accessories therefor with rotating grinding tools; Accessories therefor
    • B24B23/028—Angle tools
    • 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

Definitions

  • the invention is based on a battery-powered power tool such as angle grinder, straight grinder, fine saw od. Like. Hand tool.
  • a battery-powered power tool of the aforementioned type known ( WO 99/49553 A1 ), in which the accumulator packet can be brought into abutment with a substantially planar connection part on a corresponding connection surface at the end of the end part.
  • This connection surface is part of a receptacle adapted to the accumulator package.
  • This recording with connection surface extends within such a plane, which is directed obliquely with respect to a plane oriented approximately at right angles to the longitudinal axis of the housing part.
  • the accumulator package thus runs obliquely with respect to the housing part.
  • the electrical switch is arranged in the interior of the end part in the region between the drive motor and the accumulator package. He needed a lot of space seen in the longitudinal direction of the end part.
  • the power tool has a relatively large length and is unwieldy.
  • a power tool in which a housing part is rectilinear, which contains the electric drive motor and its transmission. In this rectilinear housing part and serving for actuating the drive motor electrical switch is arranged. At the rectilinear housing part is also a geraliniger housing part, which is bent, to, in the end of a housing with battery pack contained therein is inserted.
  • U.S. 4,976,173-A a battery-powered power tool is known, the housing is divided into a drive motor-containing housing part and serving as a handle, bent housing part that receives replaceable batteries for power. This housing part is kink adjustable with respect to the first-mentioned housing part.
  • the invention is based on the object, in a battery-powered power tool of the type mentioned in the total length despite the To keep battery packs as low as possible and to realize a shorter, more manageable design.
  • This object is achieved in a battery-powered power tool of the type mentioned according to the invention by the features in claim 1. This ensures that the battery pack fits harmoniously into the overall appearance of the power tool and so creates a harmonious overall impression. Furthermore, it is possible to keep the total length of the power tool as small as possible despite the accumulator package and to realize a shorter, more manageable design, wherein an approximately rod-shaped power tool is less tail-heavy.
  • the battery pack can be brought by the user in an optimal for each case of work pivot position. By pivoting the end part of this can thus be placed with the accumulator package in such positions that no obstruction or malfunction when working, even in confined areas, is given.
  • a part of a power tool 10 is shown, which consists of an angle grinder, a straight grinder, a fine saw or the like.
  • the power tool 10 has a machine housing 11 with an elongated, approximately rod-shaped housing part 12, in which an electric drive motor 13 is included.
  • the drive motor 13 is battery-powered, namely from a battery pack 14, the in Fig. 1 and 2 only schematically shown in side view and basically known.
  • the accumulator package 14 includes in a known manner at least one accumulator cell, not shown, and is replaceable attachable to the power tool 10.
  • the approximately rod-shaped housing part 12 has an end portion 15 which in the first embodiment in Fig. 1 integral part of the housing part 12 is.
  • This end portion 15 has an end face 16 with insertion receptacle 17 for the accumulator package 14, which in turn is provided in the usual way with a socket-like connection part 18, which for abutment against the connection surface 16 has a contact surface 19 assigned to the latter and furthermore an insertion part 20 which is in the plug-in receptacle 17 engages or in any other way can be brought into positive engagement with the simultaneous production of the respective electrical connections.
  • the design of the in Fig. 1 shown power tool 10 known per se.
  • the peculiarity of the electric tool 10 is that the end-side connection surface 16 of the end portion 15 extends within such a plane 21 which is inclined at an angle ⁇ to a plane 22 which extends approximately at right angles with respect to the longitudinal axis 23 of the housing part 12 and in Fig. 1 is indicated schematically.
  • the angle ⁇ is in the range of about 10 ° to 45 °.
  • the end portion 15 is thus bent out of the longitudinal extension direction to one side with respect to the housing part 12
  • the transverse dimension of the end portion 15 takes - compared to the transverse dimension of the approximately rod-shaped housing part 12 - to the end-side connection surface 16 by enlarging the interior space 24 in End part 15, because the pad 16 and the contact surface 19 are greater than the cross section of the housing part 12.
  • the accumulator package 14 has in a known manner with its male part 20 approximately L-shape.
  • an electrical switch 25 is disposed in the L-region of the battery pack 14, the side of the Plug 20 is placed.
  • the switch 25 which is otherwise disposed between the drive motor and the battery pack, a shorter design of the power tool 10 is achieved. Due to the inclination of the battery pack 14 is achieved that in Fig. 1 and 2 bottom end of the battery pack 14 is not or at least not so far that it would interfere with the machine housing 11 protrudes. It is still a space z. B. kept free for the switch 25. How out Fig.
  • the accumulator package 14 in the manner described on the machine housing 11, in particular on the rod-shaped housing part 12, arranged that results in a harmonious overall impression and the accumulator package 14 integrates harmoniously into the overall appearance of the power tool 10.
  • the power tool 10 has the smallest possible overall length and results in a shorter, more manageable design compared to such battery-powered power tools, in which instead the battery pack in extension of the rod-shaped housing part 12 is attached to the rear.
  • the power tool 10 has a more favorable weight distribution and is less rear-heavy. The manageability of the power tool 10 is improved. It is also advantageous that due to the bent arrangement of the accumulator 14 this is less disturbing in the way when working in confined areas.
  • FIG. 2 shown second embodiment of the power tool 10 are the same reference numerals used for the parts that correspond to the first embodiment, so that reference is made to avoid repetition of the description of the first embodiment.
  • Fig. 2 In the second embodiment in Fig. 2 is the end portion 15 'with respect to the housing part 12' pivotally mounted about an axis 26 on the housing part 12 ', wherein the axis 26 transverse to the longitudinal axis 23 of the housing part 12' extends.
  • the pivotable end portion 15 ' is on both sides according to arrow 27 pivotable about the axis 26 and in different, each occupied pivotal positions, by means of a manually operable or automatically acting locking device 28 between the pivotal end portion 15' on the one hand and the housing part 12th ⁇ on the other hand.
  • the locking device 28 is in Fig. 2 only indicated schematically. It consists z. B.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Battery Mounting, Suspending (AREA)
  • Sawing (AREA)
  • Portable Power Tools In General (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)

Description

Stand der TechnikState of the art

Die Erfindung geht aus von einem batteriegespeisten Elektrowerkzeug wie Winkelschleifer, Geradschleifer, Feinschnittsäge od. dgl. Handwerkzeugmaschine.The invention is based on a battery-powered power tool such as angle grinder, straight grinder, fine saw od. Like. Hand tool.

Es sind Elektrowerkzeuge mit etwa stabförmigem Maschinengehäuse oder Gehäuseteil bekannt, bei denen das Akkumulatorpaket am Endes des Endteils so auswechselbar angebracht ist, dass sich das Akkumulatorpaket in Richtung der Längsachse, das Gehäuse verlängernd, an letzteres anschließt. Dadurch wird das Gehäuse länger als dies bei vergleichbaren, über Netzkabel gespeisten Handwerkzeugen der Fall ist. Dies ist nicht nur unter ästhetischen Gesichtspunkten von Nachteil. Vielmehr wird auch die Handlichkeit des Elektrowerkzeuges aufgrund des Gewichts des hinten anschließend platzierten Akkumulatorpakets beeinträchtigt. Außerdem erweist sich das Akkumulatorpaket beim Arbeiten in beengter Lage mitunter als störend.There are power tools with about rod-shaped machine housing or housing part known in which the accumulator package is mounted replaceable at the end of the end part, that the accumulator package in the direction of the longitudinal axis, the housing extending, connects to the latter. This makes the case longer than comparable hand held power tool hand tools. This is not only disadvantageous from an aesthetic point of view. Rather, the handiness of the Power tool due to the weight of the subsequently placed subsequently Akkumulatorpakets impaired. In addition, the accumulator package proves to be annoying when working in confined situations sometimes.

Es ist ein batteriegespeistes Elektrowerkzeug der eingangs genannten Art bekannt ( WO 99/49553-A1 ), bei dem das Akkumulatorpaket mit einem im wesentlichen flächigen Anschlussteil an einer entsprechenden Anschlussfläche am Ende des Endteils zur Anlage bringbar ist. Diese Anschlussfläche ist Bestandteil einer an das Akkumulatorpaket angepassten Aufnahme. Diese Aufnahme mit Anschlussfläche verläuft innerhalb einer solchen Ebene, die in Bezug auf eine etwa rechtwinklig zur Längsachse des Gehäuseteils ausgerichtete Ebene schräg gerichtet ist. Das Akkumulatorpaket verläuft somit in Bezug auf den Gehäuseteil schräg. Der elektrische Schalter ist im Inneren des Endteils im Bereich zwischen dem Antriebsmotor und dem Akkumulatorpaket angeordnet. Er benötigt relativ viel Platz in Längsrichtung des Endteils gesehen. Das Elektrowerkzeug weist eine relativ große Baulänge auf und ist unhandlich.It is a battery-powered power tool of the aforementioned type known ( WO 99/49553 A1 ), in which the accumulator packet can be brought into abutment with a substantially planar connection part on a corresponding connection surface at the end of the end part. This connection surface is part of a receptacle adapted to the accumulator package. This recording with connection surface extends within such a plane, which is directed obliquely with respect to a plane oriented approximately at right angles to the longitudinal axis of the housing part. The accumulator package thus runs obliquely with respect to the housing part. The electrical switch is arranged in the interior of the end part in the region between the drive motor and the accumulator package. He needed a lot of space seen in the longitudinal direction of the end part. The power tool has a relatively large length and is unwieldy.

Aus US-5 664 634-A ist ein Elektrowerkzeug bekannt, bei dem ein Gehäuseteil geradlinig verläuft, der den elektrischen Antriebsmotor und dessen Getriebe enthält. In diesem geradlinigen Gehäuseteil ist auch der zur Betätigung des Antriebsmotors dienende elektrische Schalter angeordnet. An den geradlinigen Gehäuseteil schließt sich ein ebenfalls geraliniger Gehäuseteil, der abgeknickt ist, an, in den vom Ende her ein Gehäuse mit darin enthaltenem Batteriepack einsteckbar ist.Out US-5,664,634-A a power tool is known in which a housing part is rectilinear, which contains the electric drive motor and its transmission. In this rectilinear housing part and serving for actuating the drive motor electrical switch is arranged. At the rectilinear housing part is also a geraliniger housing part, which is bent, to, in the end of a housing with battery pack contained therein is inserted.

Aus US-4 976 173-A ist ein batteriegespeistes Elektrowerkzeug bekannt, dessen Gehäuse in einen den Antriebsmotor enthaltenden Gehäuseteil und einen als Handgriff dienenden, abgeknickten Gehäuseteil aufgeteilt ist, der auswechselbar Batterien zur Stromversorgung aufnimmt. Dieser Gehäuseteil ist in Bezug auf den erstgenannten Gehäuseteil knickverstellbar.Out U.S. 4,976,173-A a battery-powered power tool is known, the housing is divided into a drive motor-containing housing part and serving as a handle, bent housing part that receives replaceable batteries for power. This housing part is kink adjustable with respect to the first-mentioned housing part.

Der Erfindung liegt die Aufgabe zugrunde, bei einem batteriegespeisten Elektrowerkzeug der eingangs genannten Art dessen Gesamtlänge trotz des Akkumulatorpakets möglichst gering zu halten und eine kürzere, handlichere Bauform zu verwirklichen. Diese Aufgabe ist bei einem batteriegespeisten Elektrowerkzeug der eingangs genannten Art gemäß der Erfindung durch die Merkmale im Anspruch 1 gelöst. Dadurch wird erreicht, dass sich das Akkumulatorpaket harmonisch in die Gesamterscheinung des Elektrowerkzeuges einfügt und so ein harmonischer Gesamteindruck entsteht. Ferner ist es möglich, die Gesamtlänge des Elektrowerkzeuges trotz des Akkumulatorpakets möglichst gering zu halten und eine kürzere, handlichere Bauform zu verwirklichen, wobei ein etwa stabförmiges Elektrowerkzeug weniger hecklastig ist. Da der unterhalb des Halses des Akkumulatorpakets vorhandene Raum für die Anordnung des Schalters des Elektrowerkzeuges genutzt wird, kann dadurch eine noch kürzere, handlichere Bauform ermöglicht werden.
Von Vorteil ist ferner, dass aufgrund der abgeknickten Anordnung des Akkumulatorpakets dieses in vielen Fällen beim Arbeiten nicht mehr hinderlich ist oder in sonstiger Weise störend im Wege ist. Dies gilt z. B. für Winkelschleifer, bei denen erreicht wird, dass das Akkumulatorpaket nicht über die Ebene der Schleifscheibe hinausragt. Ein weiterer Vorteil liegt darin, dass aufgrund der Schrägstellung des Akkumulatorpakets wirksam verhindert ist, dass der Benutzer das Elektrowerkzeug, z. B. in Gestalt eines Winkelschleifers, noch eingeschaltet oder nach Ausschaltung mit auslaufendem Werkzeug, z. B. Schleifscheibe, auf dem Akkumulatorpaket abstellt, was sonst beim Umfallen des Elektrowerkzeuges mit laufendem Werkzeug erhebliche Verletzungsgefahr bedeuten würde.The invention is based on the object, in a battery-powered power tool of the type mentioned in the total length despite the To keep battery packs as low as possible and to realize a shorter, more manageable design. This object is achieved in a battery-powered power tool of the type mentioned according to the invention by the features in claim 1. This ensures that the battery pack fits harmoniously into the overall appearance of the power tool and so creates a harmonious overall impression. Furthermore, it is possible to keep the total length of the power tool as small as possible despite the accumulator package and to realize a shorter, more manageable design, wherein an approximately rod-shaped power tool is less tail-heavy. Since the existing space below the neck of the battery pack space for the arrangement of the switch of the power tool is used, thereby an even shorter, handier design can be made possible.
A further advantage is that due to the bent arrangement of the battery pack this is no longer hindering in many cases when working or is disturbing in any other way. This applies z. As for angle grinder, where it is achieved that the accumulator does not protrude beyond the plane of the grinding wheel. Another advantage is that due to the inclination of the battery pack is effectively prevented that the user, the power tool, for. B. in the form of an angle grinder, still turned on or after switching off with expiring tool, z. As grinding wheel, turns off on the accumulator package, which would otherwise mean significant risk of injury when falling of the power tool with running tool.

Durch die in den weiteren Ansprüchen aufgeführten Maßnahmen sind vorteilhafte Weiterbildungen und Verbesserungen des im Anspruch 1 angegebenen Elektrowerkzeuges möglich.The measures listed in the further claims advantageous refinements and improvements of the claim 1 electric tool are possible.

Wird für den Abknickwinkel des Akkumulatorpakets ein solcher in dem Bereich gemäß Anspruch 2 gewählt, lassen sich bei größerem Abknickwinkel die vorstehend angegebenen Vorteile noch steigern. Durch die Merkmale in den Ansprüchen 3 bis 5 kann die Bauform des Elektrowerkzeuges noch kürzer und handlicher unter weiterer Reduzierung der Hecklasfigkeit gestaltet werden.If such a selected in the range according to claim 2 for the Abknickwinkel of the battery pack, can be increased at a larger Abknickwinkel the advantages mentioned above. By the features in the Claims 3 to 5, the design of the power tool can be made even shorter and more manageable with further reduction of Hecklasfigkeit.

Durch die Maßnahme gemäß Anspruch 6 kann das Akkumulatorpaket vom Benutzer in eine für den jeweiligen Arbeitsfall optimale Schwenkposition gebracht werden. Durch Schwenken des Endteils kann dieses mit dem Akkumulatorpaket somit in solche Positionen gebracht werden, dass keine Behinderung oder Störung beim Arbeiten, auch in beengter Lage, gegeben ist.By the measure according to claim 6, the battery pack can be brought by the user in an optimal for each case of work pivot position. By pivoting the end part of this can thus be placed with the accumulator package in such positions that no obstruction or malfunction when working, even in confined areas, is given.

Zeichnungdrawing

Die Erfindung ist nachfolgend anhand von in der Zeichnung dargestellten Ausführungsbeispielen näher erläutert. Es zeigen:

Fig. 1
eine Seitenansicht mit teilweisem Längsschnitt eines Teils eines batteriegespeisten Elektrowerkzeuges gemäß einem ersten Ausführungsbeispiel,
Fig. 2
eine schematische Seitenansicht eines Teils eines batteriegespeisten Elektrowerkzeuges gemäß einem zweiten Ausführungsbeispiel.
The invention is explained in more detail with reference to embodiments shown in the drawing. Show it:
Fig. 1
a side view with a partial longitudinal section of a portion of a battery-powered power tool according to a first embodiment,
Fig. 2
a schematic side view of a portion of a battery-powered power tool according to a second embodiment.

Beschreibung der AusführungsbeispieleDescription of the embodiments

In Fig. 1 und 2 ist ein Teil eines Elektrowerkzeuges 10 gezeigt, das aus einem Winkelschleifer, einem Geradschleifer, einer Feinschnittsäge od. dgl. besteht. Das Elektrowerkzeug 10 weist ein Maschinengehäuse 11 mit einem länglichen, etwa stabförmigen Gehäuseteil 12 auf, in dem ein elektrischer Antriebsmotor 13 enthalten ist. Der Antriebsmotor 13 ist batteriegespeist, und zwar von einem Akkumulatorpaket 14, das in Fig. 1 und 2 nur schematisch in Seitenansicht dargestellt und grundsätzlich bekannt ist. Das Akkumulatorpaket 14 enthält in bekannter Weise mindestens eine nicht dargestellte Akkumulatorzelle und ist am Elektrowerkzeug 10 auswechselbar anbringbar. Der etwa stabförmige Gehäuseteil 12 weist einen Endteil 15 auf, der beim ersten Ausführungsbeispiel in Fig. 1 einstückiger Bestandteil des Gehäuseteils 12 ist. Dieser Endteil 15 hat eine endseitige Anschlussfläche 16 mit Einsteckaufnahme 17 für das Akkumulatorpaket 14, das seinerseits in üblicher Weise mit einem sockelartigen Anschlussteil 18 versehen ist, der zur Anlage an der Anschlussfläche 16 eine letzterer zugeordnete Anlagefläche 19 und ferner einen Einsteckteil 20 aufweist, der in die Einsteckaufnahme 17 eingreift oder in sonstiger Weise mit dieser in Formschluss bringbar ist unter gleichzeitiger Herstellung der jeweiligen elektrischen Verbindungen. Insoweit ist die Gestaltung des in Fig. 1 gezeigten Elektrowerkzeuges 10 für sich bekannt.In Fig. 1 and 2 a part of a power tool 10 is shown, which consists of an angle grinder, a straight grinder, a fine saw or the like. The power tool 10 has a machine housing 11 with an elongated, approximately rod-shaped housing part 12, in which an electric drive motor 13 is included. The drive motor 13 is battery-powered, namely from a battery pack 14, the in Fig. 1 and 2 only schematically shown in side view and basically known. The accumulator package 14 includes in a known manner at least one accumulator cell, not shown, and is replaceable attachable to the power tool 10. The approximately rod-shaped housing part 12 has an end portion 15 which in the first embodiment in Fig. 1 integral part of the housing part 12 is. This end portion 15 has an end face 16 with insertion receptacle 17 for the accumulator package 14, which in turn is provided in the usual way with a socket-like connection part 18, which for abutment against the connection surface 16 has a contact surface 19 assigned to the latter and furthermore an insertion part 20 which is in the plug-in receptacle 17 engages or in any other way can be brought into positive engagement with the simultaneous production of the respective electrical connections. In that regard, the design of the in Fig. 1 shown power tool 10 known per se.

Die Besonderheit des Elektrowerkzeuges 10 liegt darin, dass die endseitige Anschlussfläche 16 des Endteils 15 innerhalb einer solchen Ebene 21 verläuft, die unter einem Winkel α zu einer Ebene 22 schräg gerichtet ist, welche in Bezug auf die Längsachse 23 des Gehäuseteils 12 etwa rechtwinklig verläuft und in Fig. 1 schematisch angedeutet ist. Der Winkel α liegt im Bereich von etwa 10° bis 45°. Auf diese Weise ist der Endteil 15 in Bezug auf den Gehäuseteil 12 somit aus der Längserstreckungsrichtung heraus zu einer Seite hin abgeknickt Das Quermaß des Endteils 15 nimmt - verglichen mit dem Quermaß des etwa stabförmigen Gehäuseteils 12 - zur endseitigen Anschlussfläche 16 unter Vergrößerung des Innenraumes 24 im Endteil 15 zu, weil die Anschlußfläche 16 und die Anlagefläche 19 größer als der Querschnitt des Gehäuseteils 12 sind. Das Akkumulatorpaket 14 weist in bekannter Weise mit seinem Einsteckteil 20 etwa L-Form auf. Im Innenraum 24 des Endteils 15 ist im L-Bereich des Akkumulatorpakets 14 ein elektrischer Schalter 25 angeordnet, der seitlich des Einsteckteils 20 platziert ist. Durch diese Anordnung des Schalters 25, der sonst zwischen dem Antriebsmotor und dem Akkumulatorpaket angeordnet ist, wird eine kürzere Bauform des Elektrowerkzeugs 10 erreicht. Durch die Schrägstellung des Akkumulatorpakets 14 wird erreicht, dass das in Fig. 1 und 2 unten befindliche Ende des Akkumulatorpakets 14 nicht oder zumindest nicht so weit, dass es stören würde, über das Maschinengehäuse 11 übersteht. Dabei ist trotzdem ein Bauraum z. B. für den Schalter 25 freigehalten. Wie aus Fig. 1 ersichtlich ist, ist das Akkumulatorpaket 14 in beschriebener Weise derart am Maschinengehäuse 11, insbesondere am stabförmigen Gehäuseteil 12, angeordnet, dass sich ein harmonischer Gesamteindruck ergibt und das Akkumulatorpaket 14 sich in die Gesamterscheinung des Elektrowerkzeuges 10 harmonisch integriert. Von Vorteil ist ferner, dass das Elektrowerkzeug 10 eine möglichst geringe Gesamtlänge hat und sich eine kürzere, handlichere Bauform ergibt im Vergleich zu solchen batteriegespeisten Elektrowerkzeugen, bei denen statt dessen das Akkumulatorpaket in Verlängerung des stabförmigen - Gehäuseteils 12 hinten angesetzt ist. Ferner ist in vorteilhafter Weise erreicht, dass das Elektrowerkzeug 10 eine günstigere Gewichtsverteilung aufweist und weniger hecklastig ist. Die Handlichkeit des Elektrowerkzeuges 10 ist verbessert. Außerdem ist von Vorteil, dass aufgrund der abgeknickten Anordnung des Akkumulatorpakets 14 dieses beim Arbeiten in beengter Lage weniger störend im Weg ist. Dies gilt insbesondere für Winkelschleifer, bei denen erreicht wird, dass das Akkumulatorpaket 14 nicht über die Ebene der Schleifscheibe hinausragt. Der Benutzer des Elektrowerkzeuges 10 kann dieses bei der Benutzung so ausrichten, dass das Akkumulatorpaket 14 beim Arbeiten nicht hinderlich ist oder im Wege ist, wobei der Benutzer eine für ihn jeweils optimale Position bei der Handhabung finden kann. Ein weiterer Vorteil liegt darin, dass aufgrund der Schrägstellung des Akkumulatorpakets 14 wirksam verhindert ist, dass der Benutzer das Elektrowerkzeug 10, z. B. in Gestalt eines Winkelschleifers, noch eingeschaltet oder nach Ausschaltung mit auslaufendem Werkzeug, z. B. Schleifscheibe, auf dem Akkumulatorpaket 14 abstellt, was sonst beim Umfallen des Elektrowerkzeuges 10 mit laufendem Werkzeug erhebliche Verletzungsgefahr bedeuten würde.The peculiarity of the electric tool 10 is that the end-side connection surface 16 of the end portion 15 extends within such a plane 21 which is inclined at an angle α to a plane 22 which extends approximately at right angles with respect to the longitudinal axis 23 of the housing part 12 and in Fig. 1 is indicated schematically. The angle α is in the range of about 10 ° to 45 °. In this way, the end portion 15 is thus bent out of the longitudinal extension direction to one side with respect to the housing part 12 The transverse dimension of the end portion 15 takes - compared to the transverse dimension of the approximately rod-shaped housing part 12 - to the end-side connection surface 16 by enlarging the interior space 24 in End part 15, because the pad 16 and the contact surface 19 are greater than the cross section of the housing part 12. The accumulator package 14 has in a known manner with its male part 20 approximately L-shape. In the interior 24 of the end portion 15, an electrical switch 25 is disposed in the L-region of the battery pack 14, the side of the Plug 20 is placed. By this arrangement of the switch 25, which is otherwise disposed between the drive motor and the battery pack, a shorter design of the power tool 10 is achieved. Due to the inclination of the battery pack 14 is achieved that in Fig. 1 and 2 bottom end of the battery pack 14 is not or at least not so far that it would interfere with the machine housing 11 protrudes. It is still a space z. B. kept free for the switch 25. How out Fig. 1 it can be seen, the accumulator package 14 in the manner described on the machine housing 11, in particular on the rod-shaped housing part 12, arranged that results in a harmonious overall impression and the accumulator package 14 integrates harmoniously into the overall appearance of the power tool 10. A further advantage is that the power tool 10 has the smallest possible overall length and results in a shorter, more manageable design compared to such battery-powered power tools, in which instead the battery pack in extension of the rod-shaped housing part 12 is attached to the rear. Furthermore, it is advantageously achieved that the power tool 10 has a more favorable weight distribution and is less rear-heavy. The manageability of the power tool 10 is improved. It is also advantageous that due to the bent arrangement of the accumulator 14 this is less disturbing in the way when working in confined areas. This applies in particular to angle grinders, in which it is achieved that the accumulator package 14 does not protrude beyond the plane of the grinding wheel. The user of the power tool 10 can align this in use so that the battery pack 14 is not hindering or interfering with the work, the user can find an optimal position for him during handling. Another advantage is that due to the inclination of the battery pack 14 is effectively prevented that the user, the power tool 10, z. B. in the form of an angle grinder, still turned on or after switching off with expiring tool, z. B. grinding wheel, on the accumulator package 14 turns off, what else when falling over of the power tool 10 with running tool would mean considerable risk of injury.

Bei dem in Fig. 2 gezeigten zweiten Ausführungsbeispiel des Elektrowerkzeuges 10 sind für die Teile, die dem ersten Ausführungsbeispiel entsprechen, gleiche Bezugszeichen verwendet, so dass dadurch zur Vermeidung von Wiederholungen auf die Beschreibung des ersten Ausführungsbeispieles Bezug genommen ist.At the in Fig. 2 shown second embodiment of the power tool 10 are the same reference numerals used for the parts that correspond to the first embodiment, so that reference is made to avoid repetition of the description of the first embodiment.

Beim zweiten Ausführungsbeispiel in Fig. 2 ist der Endteil 15' in Bezug auf den Gehäuseteil 12' um eine Achse 26 schwenkverstellbar am Gehäuseteil 12' gehalten, wobei die Achse 26 quer zur Längsachse 23 des Gehäuseteils 12' verläuft. Der schwenkbare Endteil 15' ist zu beiden Seiten hin gemäß Pfeil 27 um die Achse 26 schwenkbeweglich und in verschiedenen, jeweils eingenommenen Schwenklagen feststellbar, und zwar mittels einer von Hand betätigbaren oder selbsttätig wirkenden Feststelleinrichtung 28 zwischen dem schwenkbaren Endteil 15` einerseits und dem Gehäuseteil 12` andererseits. Die Feststelleinrichtung 28 ist in Fig. 2 nur schematisch angedeutet. Sie besteht z. B. aus einer schematisch angedeuteten Klemmschraube 29 und/oder formschlüssig und/oder kraftschlüssig wirkenden Kupplung 30, z. B. realisiert durch Zahnscheiben od. dgl.. In Fig. 2 ist lediglich gestrichelt eine derartige Kupplung 30 angedeutet. Es versteht sich, dass für die Feststelleinrichtung 28 die verschiedensten Gestaltungsformen erfindungsgemäß in Betracht kommen. Aufgrund der Schwenkbarkeit des Endteils 15 ist somit das Akkumulatorpaket 14 in jede beliebige Lage z. B. zwischen zwei Endlagen schwenkbar und in der jeweils hergestellten Schwenkposition feststellbar. Dadurch kann der Benutzer über den Endteil 15' das Akkumulatorpaket 14 in eine für den jeweiligen Arbeitsfall optimale Position bringen, in der das Akkumulatorpaket 14 beim Arbeiten nicht störend im Wege ist.In the second embodiment in Fig. 2 is the end portion 15 'with respect to the housing part 12' pivotally mounted about an axis 26 on the housing part 12 ', wherein the axis 26 transverse to the longitudinal axis 23 of the housing part 12' extends. The pivotable end portion 15 'is on both sides according to arrow 27 pivotable about the axis 26 and in different, each occupied pivotal positions, by means of a manually operable or automatically acting locking device 28 between the pivotal end portion 15' on the one hand and the housing part 12th `on the other hand. The locking device 28 is in Fig. 2 only indicated schematically. It consists z. B. from a schematically indicated clamping screw 29 and / or positively and / or non-positively acting coupling 30, z. B. realized by toothed disks od. Like .. In Fig. 2 is only dashed lines such a coupling 30 indicated. It is understood that for the locking device 28, the most diverse forms of design according to the invention come into consideration. Due to the pivoting of the end portion 15 thus the accumulator package 14 in any position z. B. between two end positions and detectable in the respective produced pivot position. This allows the user via the end portion 15 'bring the accumulator package 14 in an optimal position for each case of work in which the accumulator 14 is not disturbing while working in the way.

Claims (9)

  1. Battery-operated electric tool such as an angle grinder, straight grinder fine-cut saw or the like, comprising a machine housing (11) which has an elongated, approximately rod-shaped housing part (12) with an electric drive motor (13) contained therein and with an end part (15) on which there is provided an end-side connecting surface (16) for exchangeably fitting a rechargeable battery pack (14) which is provided with a connecting part (18) which for the purpose of bearing against the connecting surface (16) has a bearing surface (19) assigned thereto, the end-side connecting surface (16) of the end part (15; 15') running inside a plane (21) which is such as to be obliquely directed with reference to a plane (22) running approximately at right angles to the longitudinal axis (23) of the housing part (12), and an electric switch (25) being contained in the interior (24) of the end part (15), characterized in that the connecting part (18) of the rechargeable battery pack (14) has a plug-in part (20) engaging in a plug-in receptacle (17) in the end part (15), and the rechargeable battery pack (14) with its plug-in part (20) is shaped approximately like an L, and in that the electric switch (25) in the interior (24) of the end part (15) is contained laterally next to the accommodated plug-in part (20) in the space present below the neck of the rechargeable battery pack (14).
  2. Battery-operated electric tool according to Claim 1, characterized in that the connecting surface plane (21) runs at an angle α in the range of approximately 10° to 45° to the plane (22) which is directed approximately at right angles to the longitudinal axis (23) of the housing part (12).
  3. Battery-operated electric tool according to Claim 1 or 2, characterized in that the end part (15) is bent off to one side from the direction of longitudinal extent with reference to the housing part (12).
  4. Battery-operated electric tool according to one of Claims 1 to 3, characterized in that the transverse dimension of the end part (15; 15') increases towards the end, in particular towards the end-side connecting surface (16).
  5. Battery-operated electric tool according to one of Claims 1 to 4, characterized in that the transverse dimension of the end-side connecting surface (16) is greater than the transverse dimension of the approximately rod-shaped housing part (12).
  6. Battery-operated electric tool according to one of Claims 1 to 5, characterized in that the end part (15') with reference to the housing part (12') is held on the housing part (12') such that it can swivel about an axis (26) directed transverse to the longitudinal extent of said housing part.
  7. Battery-operated electric tool according to Claim 6, characterized in that the swivellable end part (15') can be fixed in various, respectively adopted swivel positions.
  8. Battery-operated electric tool according to Claim 7, characterized by a fixing device (28), which can be actuated by hand or operate independently, between the swivellable end part (15') and the housing part (12').
  9. Battery-operated electric tool according to Claim 8, characterized in that the fixing device (28) has a locking screw (29) and/or a coupling (30) acting in a form-fitting and/or force-closed fashion, for example with the aid of toothed discs.
EP01951395A 2000-08-16 2001-06-16 Battery operated electric tool Expired - Lifetime EP1318896B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10039777 2000-08-16
DE10039777A DE10039777A1 (en) 2000-08-16 2000-08-16 Battery powered power tool
PCT/DE2001/002243 WO2002014029A1 (en) 2000-08-16 2001-06-16 Battery operated electric tool

Publications (2)

Publication Number Publication Date
EP1318896A1 EP1318896A1 (en) 2003-06-18
EP1318896B1 true EP1318896B1 (en) 2008-02-13

Family

ID=7652442

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01951395A Expired - Lifetime EP1318896B1 (en) 2000-08-16 2001-06-16 Battery operated electric tool

Country Status (6)

Country Link
US (1) US6935438B2 (en)
EP (1) EP1318896B1 (en)
JP (1) JP2004505793A (en)
CN (1) CN1264657C (en)
DE (2) DE10039777A1 (en)
WO (1) WO2002014029A1 (en)

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10231249B4 (en) * 2002-07-11 2008-04-30 Robert Bosch Gmbh Hand tool
US7261220B2 (en) * 2004-08-27 2007-08-28 Black & Decker Inc. Cordless DC caulk gun
DE202005003499U1 (en) * 2005-03-04 2005-06-23 Hans Einhell Ag Portable electrical hand tool used e.g. in confined spaces in furniture, includes catch permitting desired orientation of power supply unit relative to drive section
DE102009008544A1 (en) * 2008-02-11 2009-09-03 Milwaukee Electric Tool Corp., Brookfield Battery connection for a power tool
DE102008042601A1 (en) 2008-10-03 2010-04-08 Hilti Aktiengesellschaft Battery powered angle grinder
DE202009001437U1 (en) 2009-01-29 2010-07-01 C. & E. Fein Gmbh Powered hand tool
FR2947201B1 (en) * 2009-06-26 2015-03-13 Renault Georges Ets ELECTROPORTATIVE SCREWING TOOL INCLUDING RECHARGEABLE ELECTRICAL BATTERY ORIENTED ERGONOMICALLY
JP2013067090A (en) * 2011-09-22 2013-04-18 Makita Corp Rechargeable grooving machine for joint
US9764486B2 (en) 2013-04-04 2017-09-19 Milwaukee Electric Tool Corporation Power tool
JP6350912B2 (en) * 2014-07-11 2018-07-04 パナソニックＩｐマネジメント株式会社 Electric tool
JP6568415B2 (en) * 2015-07-01 2019-08-28 京セラインダストリアルツールズ株式会社 Handheld rechargeable power tool
CN106553159B (en) * 2015-09-28 2020-11-17 苏州宝时得电动工具有限公司 Electric tool
WO2017154523A1 (en) * 2016-03-05 2017-09-14 日立工機株式会社 Electrically powered tool
DE102016120832A1 (en) * 2016-11-02 2018-05-03 Metabowerke Gmbh Battery operated power tool
CN108777513A (en) * 2018-06-28 2018-11-09 周保菊 A kind of modified Internet of Things ecology intelligent distant control robot
CN108777503A (en) * 2018-06-28 2018-11-09 周保菊 A kind of novel Internet of Things ecology intelligent distant control robot
CN108808825A (en) * 2018-06-28 2018-11-13 曾强盛 A kind of intelligent home electrical appliance equipment
EP3653340A1 (en) * 2018-11-13 2020-05-20 Hilti Aktiengesellschaft Handheld machine tool with a battery interface
DE102019006574A1 (en) * 2019-09-18 2021-03-18 Metabowerke Gmbh Hand machine tool and method of making a hand machine tool
CN111251106A (en) * 2020-03-17 2020-06-09 浙江博来工具有限公司 Wireless hand-held type wall polisher
US12011840B2 (en) 2021-09-22 2024-06-18 Harbor Freight Tools Usa, Inc. Rotatable tool head

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8704265D0 (en) 1987-02-24 1987-04-01 Yang T H Manual electric tools(1)
US4912349A (en) * 1989-05-16 1990-03-27 Chang Jung C Pivotally adjustable electric hand tool
US5664634A (en) * 1995-10-23 1997-09-09 Waxing Corporation Of America, Inc. Power tool
US5842506A (en) * 1997-09-12 1998-12-01 Peters; Rudolph W. Hand tool for forming and applying wire ties
ZA992307B (en) * 1998-03-26 1999-10-01 Lloyd V Gouge Cordless, high torque power tool.
CA2324488C (en) * 1998-03-26 2002-12-03 Lloyd V. Gouge, Jr. Cordless, high torque power tool
USD418729S (en) * 1998-08-31 2000-01-11 Black & Decker Inc. Screwdriver
US6102134A (en) * 1998-10-16 2000-08-15 Black & Decker Inc. Two-position screwdriver
US6139359A (en) * 1999-04-08 2000-10-31 Snap-On Tools Company Cordless screwdriver and multi-position battery pack therefor
US6199642B1 (en) * 1999-07-06 2001-03-13 Snap-On Tools Company Reversible ratcheting power tool with synchronized motor and ratchet control

Also Published As

Publication number Publication date
US6935438B2 (en) 2005-08-30
CN1388772A (en) 2003-01-01
US20030115995A1 (en) 2003-06-26
DE10039777A1 (en) 2002-02-28
EP1318896A1 (en) 2003-06-18
JP2004505793A (en) 2004-02-26
CN1264657C (en) 2006-07-19
DE50113603D1 (en) 2008-03-27
WO2002014029A1 (en) 2002-02-21

Similar Documents

Publication Publication Date Title
EP1318896B1 (en) Battery operated electric tool
DE112015003376B4 (en) Electrically powered chainsaw
EP3321049B1 (en) Hand-held, portable cutting device with a cutting fitting
DE69117476T2 (en) Portable rotating tool
EP1844646B1 (en) Hedge shears
DE112013006573B4 (en) Handheld electric cutter
EP2077924A2 (en) Hand machine-tool, especially electrical shears
DE7714455U1 (en) PORTABLE DEVICE FOR NAIL CARE
WO2012052242A2 (en) Working tool, in particular electric tool
DE29922108U1 (en) Handheld grinder
EP0986448A1 (en) Manually operated electric machine tool
EP2024150B1 (en) Portable power tool having a tool driven in an oscillating and pendulous manner
DE60312418T2 (en) Removable sharpening attachment for a rotating power tool
EP3456197A1 (en) Weed grooving machine
EP2163344B1 (en) Manually operated machine tool with a side edge cover
EP0936033A2 (en) Hand-held power tool
DE4238245C3 (en) Dust extraction device for a motor-driven device designed as a hand-held device
EP2603353B1 (en) Grinder for surface treatment
DE69205809T2 (en) Chainsaw.
DE2332454C3 (en) Guide device for hand belt grinders or the like
DE19733796A1 (en) Hand-held oscillation device
CH666640A5 (en) Electric hand drill or polisher attachment - includes support holder worn by operator and flexible drive shaft for auxiliary hand tool
EP0765706B1 (en) Portable machine tool
DE102004007764B3 (en) Hand held electric drill or screwdriver with secondary detachable snap-fit U-shaped handle
DE102020113266B4 (en) hand screw tool

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20030317

AK Designated contracting states

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

RIN1 Information on inventor provided before grant (corrected)

Inventor name: HOFMANN, ALBRECHT

Inventor name: HECKMANN, MARKUS

Inventor name: SCHOMISCH, THOMAS

Inventor name: KRONDORFER, HARALD

RBV Designated contracting states (corrected)

Designated state(s): DE FR GB

17Q First examination report despatched

Effective date: 20070327

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE FR GB

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REF Corresponds to:

Ref document number: 50113603

Country of ref document: DE

Date of ref document: 20080327

Kind code of ref document: P

ET Fr: translation filed
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20081114

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20090618

Year of fee payment: 9

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20090825

Year of fee payment: 9

Ref country code: GB

Payment date: 20090623

Year of fee payment: 9

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20100616

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20110228

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20110101

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20100630

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20100616