EP2342051A1 - Hand-held power tool - Google Patents

Hand-held power tool

Info

Publication number
EP2342051A1
EP2342051A1 EP09781745A EP09781745A EP2342051A1 EP 2342051 A1 EP2342051 A1 EP 2342051A1 EP 09781745 A EP09781745 A EP 09781745A EP 09781745 A EP09781745 A EP 09781745A EP 2342051 A1 EP2342051 A1 EP 2342051A1
Authority
EP
European Patent Office
Prior art keywords
switch
hand tool
switch trigger
tool according
trigger
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP09781745A
Other languages
German (de)
French (fr)
Other versions
EP2342051B1 (en
Inventor
Heiko Roehm
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 EP2342051A1 publication Critical patent/EP2342051A1/en
Application granted granted Critical
Publication of EP2342051B1 publication Critical patent/EP2342051B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • 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
    • B25F5/021—Construction of casings, bodies or handles with guiding devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B23/00—Details of, or accessories for, spanners, wrenches, screwdrivers
    • B25B23/18—Devices for illuminating the head of the screw or the nut

Definitions

  • the invention relates to a hand tool, in particular an electrically operated hand tool such as a cordless screwdriver or cordless drill, according to the preamble of claim 1.
  • Such a cordless screwdriver or drill is described in US Pat. No. 7,185,998 B2, which has an electric drive motor for driving a tool holder in a motor housing. Approximately perpendicular to the motor housing extends a handle housing, at the lower end of a battery pack is arranged to power. In the transition region between the battery pack and the handle housing a lighting device is arranged, which comprises a light source with an upstream lens, via which a light beam lying directly in front of the tool holder
  • Working field is sent out. Due to the relatively large distance between the light source and the working field, the light source must have a relatively high light intensity.
  • the luminous means is located at the front region of the motor housing in the immediate vicinity of the tool holder.
  • the disadvantage here is the relatively large height, which arises due to the angular positioning of the lamp relative to the tool axis.
  • Transition region between the motor housing and the handle housing positioned switch pushers for actuating the electrical Drive motor can not be operated in an optimal, ergonomic manner due to the directly upstream arrangement of the bulb.
  • the invention is based on the object with simple constructive measures, the working field of a
  • Handheld power tool to illuminate optimally without limitation of ergonomics.
  • the hand tool according to the invention which is in particular an electrically operated hand tool such as a cordless screwdriver, cordless drill, battery impact wrench or cordless percussion drill, has in a housing a switch assembly for actuating or adjusting a drive motor.
  • the switch assembly is composed of a switch and a switch trigger.
  • a lighting device for working field illumination is provided which comprises a light source for generating a light beam in the direction of the working field.
  • the movable to the housing switch lever for actuating or adjusting the drive motor forms a part of the lighting device, in such a way that emitted by the light beam from the or on the switch lever for
  • the switch handle is therefore in addition to its original function of
  • the switch handle is part of the lighting device, the Illuminants are placed in close proximity to the switch, so that it is no longer necessary to position the light source at a greater distance to the switch for ergonomic reasons.
  • the light source can be designed to be small, since a relatively close positioning on the working field and thus the use of relatively low light intensities is possible.
  • the height of the light source is reduced, since an arrangement of the illuminant with only a small angular deviation relative to the tool axis of the power tool or an axially parallel arrangement is possible; the switch trigger, which lies in the beam path of the light beam emanating from the light source, ensures a distribution or deflection of the light beams in the direction of the working field to be illuminated.
  • the light source is arranged outside of the switch trigger in the housing and the light beams of the light source are directed to the switch trigger, which plays a visual forwarding function for the light rays striking it.
  • the switch trigger at least partially consists of a transparent material, so that the light rays emitted by the light source switch in
  • the switch Penetrate the direction of the working field to be illuminated. In this way, a bundled, incident on the switch light beam can be focused, deflected or possibly fanned out in the manner of a lens to achieve a desired illumination effect.
  • it is also possible to reflect the incident light beam on the switch on the surface of the switch by the switch is provided for example with a mirrored surface or a polished surface, which allows a reflection.
  • the geometry of the switch can also be prepared for a desired optical effect, for example, such that the switch for bundling or - A -
  • the geometry of the switch can be prepared here accordingly both in the case of a transparent material, through which the light passes, as well as in the case of a reflection on the surface.
  • This design is also rugged because the lamp inside the switch is protected from dirt and damage.
  • the lighting means is integrated into the interior of the switch trigger.
  • This design is particularly space-saving, since no additional installation space for the light source must be kept.
  • the switch trigger either an opening for the exit of the light rays is emitted, which are emitted by the lamp, or the wall of the executed as a hollow body switch pusher consists of a transparent material through which the light rays pass.
  • the switch trigger which is part of the lighting device, is a reversing switch switch with which the direction of rotation of the drive motor is set or reversed.
  • the direction of rotation reversal switch pusher usually extends in the transverse direction through the motor or gear housing of the power tool and is depending on the currently set rotational direction on one of the two sides of the housing over.
  • Reverse direction switch pushbutton participates in the illumination of the working field.
  • each one is advantageously on each side of the housing each one
  • Illuminant arranged, which is activated with appropriate adjustment of the reversing switch trigger and the protruding part of the reversing switch push-button illuminated.
  • Reverse direction switch trigger each a light source can be provided which protrudes laterally at a supernatant of the corresponding side of the switch trigger on the side of the housing and thus enters a line directly to the working area to be illuminated. It is also possible, however, a design with only a single, bulbs fixed to the housing in the interior of the reversing switch pushbutton, the light emanating from the bulb is passed over the currently protruding side of the reversing switch push-button towards working field.
  • Direction of rotation reversing switch trigger can also be another switch trigger component of the lighting device, such as the operating switch, via which the drive motor is put into operation and the speed of the drive motor is set. Also contemplated is a power-on lockout button for the motor switch or a power-on lockout button for the motor power switch.
  • Fig. 1 shows a section through a hand tool, which is designed as a cordless drill or screwdriver, wherein adjacent to a
  • Direction of rotation reversal switch trigger a light source is arranged, meet the light rays on the reversing switch push-button and are forwarded from there in the direction of working field,
  • Fig. 2 shows the hand tool in a front view.
  • the same components are provided with the same reference numerals.
  • the hand tool 1 shown in Fig. 1 comprises a housing 2, consisting of a motor housing 3 and a directed approximately perpendicular to the motor housing 3 handle housing 4, wherein motor housing 3 and handle housing 4 are optionally made in one piece or as separate components.
  • a motor housing 3 In the motor housing 3, an electric drive motor 5 and also a gear 6 is received, which is actuated by the drive motor 5 and via which the drive movement is transmitted to a spindle or tool holder 7 for receiving a tool.
  • the transmission 6 is, for example, a planetary gear to implement the high engine speed in the lower speed of the tool holder.
  • the drive motor 5 is operated via a switch trigger 8 which can be moved relative to the housing, which is located on the handle housing 4, wherein the degree of actuation of the switch trigger 8, which acts internally on a switch 9, the speed of the drive motor is set. Furthermore, a relative to the housing movable reversing switch trigger 10 is disposed in the transition between the motor housing 3 and the handle housing 4 on the underside of the housing, which is transverse to horritg in the transverse direction. Motor axis extends and depending on the current position on one of the two sides of the housing protrudes. The direction of rotation reversal switch push-button is used to actuate a reversing direction switch which adjusts the direction of rotation of the drive motor.
  • a replaceable battery pack 11 which serves to power the electric drive motor 5.
  • a light source 12 is provided, which in the Area of the handle housing immediately below the motor housing adjacent to the reversing direction switch lever 10 is arranged.
  • the light-emitting means 12 has a light source, for example a light bulb, an LED or OLED or an SMD LED.
  • the bulb 12 is based on the working field 13 behind and at a distance from
  • the invention is part of a lighting device for illuminating the working field 13. Accordingly, this lighting device also includes the light bulb 12 as well as the
  • Direction of rotation reversing switch pusher 10 which directs the light rays emitted by the bulb 12 in the direction of the working field 13.
  • the reversing switch trigger 10 is for this purpose at least in its lateral, protruding from the housing areas of a transparent material such as PMMA, PC or PS.
  • the emanating from the light bulb 12 light rays can penetrate the transparent wall of the reversing direction switch lever 10, wherein by suitable additional measures such as a corresponding curvature in the wall of the
  • Reverse direction switch trigger a fanning effect or a bundling effect can be generated in the manner of a lens.
  • the surface of the direction of rotation reversal switch pusher 10 located inside the housing reflects the incident light beams of the luminous means 12.
  • the surface of the reversing switch trigger 10 is provided for example partially or completely with a coating, in particular mirrored, or polished, in order to achieve in this way a reflection of the incident light beams.
  • the bulb 12 is in the interior of the formed as a hollow body reversing switch trigger 10 integrated.
  • This design has the advantage of a particularly compact design. Here comes both a version with only a single bulb 12 in
  • Direction of rotation reversing switch pusher 10 into consideration as well as a design with at least two light sources, which are preferably arranged in the side region of the reversing switch push-button.
  • Direction of rotation reversal switch trigger 10 is made transparent in this embodiment, so that the light rays generated by the light source in the direction of
  • Working field 13 can escape. Optionally, however, an exit opening for the light rays in the wall of the reversing direction switch trigger comes into consideration.
  • the direction of rotation reversal switch trigger 10 projects laterally over the grip housing 4, so that a deflection of the light beams generated by the illuminant in the direction of the working field 13 from both positions of the reversing switch trigger 10 is possible.

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

Abstract

A hand-held power tool is equipped with a lighting element for illuminating the working field, the lighting element including a light source and a trigger switch for activating or adjusting a drive motor forming a component of the lighting element in such a way that light beams emitted by the light source are guided via the trigger switch to the working field.

Description

BeSchreibungDescription
Titel HandwerkzeugmaschineTitle Hand tool
Die Erfindung betrifft eine Handwerkzeugmaschine, insbesondere eine elektrisch betriebene Handwerkzeugmaschine wie beispielsweise einen Akku-Schrauber oder Akku-Bohrer, nach dem Oberbegriff des Anspruches 1.The invention relates to a hand tool, in particular an electrically operated hand tool such as a cordless screwdriver or cordless drill, according to the preamble of claim 1.
Stand der TechnikState of the art
In der US 7,185,998 B2 wird ein derartiger Akku-Schrauber bzw. - Bohrer beschrieben, der in einem Motorgehäuse einen elektrischen Antriebsmotor zum Antrieb einer Werkzeugaufnahme aufweist. Etwa senkrecht zum Motorgehäuse erstreckt sich ein Griffgehäuse, an dessen unterem Ende ein Akku-Pack zur Stromversorgung angeordnet ist. Im Übergangsbereich zwischen dem Akku-Pack und dem Griffgehäuse ist eine Leuchteinrichtung angeordnet, die ein Leuchtmittel mit vorgeschalteter Linse umfasst, über die ein Lichtstrahl zum unmittelbar vor der Werkzeugaufnahme liegendenSuch a cordless screwdriver or drill is described in US Pat. No. 7,185,998 B2, which has an electric drive motor for driving a tool holder in a motor housing. Approximately perpendicular to the motor housing extends a handle housing, at the lower end of a battery pack is arranged to power. In the transition region between the battery pack and the handle housing a lighting device is arranged, which comprises a light source with an upstream lens, via which a light beam lying directly in front of the tool holder
Arbeitsfeld ausgesandt wird. Aufgrund des verhältnismäßig großen Abstandes zwischen dem Leuchtmittel und dem Arbeitsfeld muss das Leuchtmittel eine relativ hohe Lichtstärke aufweisen.Working field is sent out. Due to the relatively large distance between the light source and the working field, the light source must have a relatively high light intensity.
Gemäß einer alternativen, in der US 7,185,998 B2 beschriebenen Ausführung befindet sich das Leuchtmittel am vorderen Bereich des Motorgehäuses in unmittelbarer Nachbarschaft zur Werkzeugaufnahme. Nachteilig hierbei ist die verhältnismäßig große Bauhöhe, die durch die winklige Positionierung des Leuchtmittels bezogen auf die Werkzeugachse entsteht. Der imAccording to an alternative embodiment described in US Pat. No. 7,185,998 B2, the luminous means is located at the front region of the motor housing in the immediate vicinity of the tool holder. The disadvantage here is the relatively large height, which arises due to the angular positioning of the lamp relative to the tool axis. The im
Übergangsbereich zwischen dem Motorgehäuse und dem Griffgehäuse positionierte Schalterdrücker zum Betätigen des elektrischen Antriebsmotors kann aufgrund der direkt vorgelagerten Anordnung des Leuchtmittels nicht in optimaler, ergonomischer Weise betätigt werden.Transition region between the motor housing and the handle housing positioned switch pushers for actuating the electrical Drive motor can not be operated in an optimal, ergonomic manner due to the directly upstream arrangement of the bulb.
Offenbarung der ErfindungDisclosure of the invention
Der Erfindung liegt die Aufgabe zugrunde, mit einfachen konstruktiven Maßnahmen das Arbeitsfeld einerThe invention is based on the object with simple constructive measures, the working field of a
Handwerkzeugmaschine ohne Einschränkung der Ergonomie optimal auszuleuchten.Handheld power tool to illuminate optimally without limitation of ergonomics.
Diese Aufgabe wird erfindungsgemäß mit den Merkmalen des Anspruches 1 gelöst. Die Unteransprüche geben zweckmäßige Weiterbildungen an.This object is achieved with the features of claim 1. The dependent claims indicate expedient developments.
Die erfindungsgemäße Handwerkzeugmaschine, bei der es sich insbesondere um eine elektrisch betriebene Handwerkzeugmaschine wie zum Beispiel einen Akku-Schrauber, Akku-Bohrschrauber, Akku- Schlagschrauber oder eine Akku-Schlagbohrmaschine handelt, weist in einem Gehäuse eine Schalterbaugruppe zur Betätigung oder Einstellung eines Antriebsmotors auf. Die Schalterbaugruppe setzt sich aus einem Schalter und einem Schalterdrücker zusammen. Des Weiteren ist eine Leuchteinrichtung zur Arbeitsfeldbeleuchtung vorgesehen, die ein Leuchtmittel zur Generierung eines Lichtstrahles in Richtung des Arbeitsfeldes umfasst. Gemäß der Erfindung bildet auch der zum Gehäuse bewegliche Schalterdrücker zur Betätigung bzw. Einstellung des Antriebsmotors einen Bestandteil der Leuchteinrichtung, und zwar in der Weise, dass von dem Leuchtmittel ausgesandte Lichtstrahlen von dem oder über den Schalterdrücker zumThe hand tool according to the invention, which is in particular an electrically operated hand tool such as a cordless screwdriver, cordless drill, battery impact wrench or cordless percussion drill, has in a housing a switch assembly for actuating or adjusting a drive motor. The switch assembly is composed of a switch and a switch trigger. Furthermore, a lighting device for working field illumination is provided which comprises a light source for generating a light beam in the direction of the working field. According to the invention, the movable to the housing switch lever for actuating or adjusting the drive motor forms a part of the lighting device, in such a way that emitted by the light beam from the or on the switch lever for
Arbeitsfeld geleitet werden. Dem Schalterdrücker kommt demnach zusätzlich zu seiner originären Funktion derWorking field. The switch handle is therefore in addition to its original function of
Motorschalterbetätigung die weitere Aufgabe zu, den Lichtstrahl an die gewünschte Position zu lenken.Motor switch operation, the further task to direct the light beam to the desired position.
Diese Ausführung weist verschiedene Vorteile auf. Da der Schalterdrücker Bestandteil der Leuchteinrichtung ist, kann das Leuchtmittel in unmittelbarer Nähe zum Schalter angeordnet werden, so dass es nicht mehr erforderlich ist, aus Ergonomiegründen das Leuchtmittel in größerer Entfernung zum Schalter zu positionieren. Es bestehen zum einen mehr konstruktive Möglichkeiten für die Anordnung und Positionierung des Leuchtmittels im Gehäuse. Zum andern kann das Leuchtmittel klein bauend ausgeführt werden, da eine verhältnismäßige nahe Positionierung am Arbeitsfeld und damit die Verwendung relativ geringer Leuchtstärken möglich ist. Außerdem ist die Bauhöhe des Leuchtmittels reduziert, da eine Anordnung des Leuchtmittels mit nur geringer Winkelabweichung gegenüber der Werkzeugachse der Handwerkzeugmaschine bzw. eine achsparallele Anordnung möglich ist; der Schalterdrücker, der im Strahlenweg des Lichtstrahls liegt, der von dem Leuchtmittel ausgeht, sorgt für eine Verteilung bzw. Umlenkung der Lichtstrahlen in Richtung auf das zu beleuchtende Arbeitsfeld.This embodiment has several advantages. Since the switch handle is part of the lighting device, the Illuminants are placed in close proximity to the switch, so that it is no longer necessary to position the light source at a greater distance to the switch for ergonomic reasons. There are on the one hand more design options for the arrangement and positioning of the lamp in the housing. On the other hand, the light source can be designed to be small, since a relatively close positioning on the working field and thus the use of relatively low light intensities is possible. In addition, the height of the light source is reduced, since an arrangement of the illuminant with only a small angular deviation relative to the tool axis of the power tool or an axially parallel arrangement is possible; the switch trigger, which lies in the beam path of the light beam emanating from the light source, ensures a distribution or deflection of the light beams in the direction of the working field to be illuminated.
Gemäß einer zweckmäßigen Ausführung ist das Leuchtmittel außerhalb des Schalterdrückers im Gehäuse angeordnet und sind die Lichtstrahlen des Leuchtmittels auf den Schalterdrücker gerichtet, dem eine optische Weiterleitungsfunktion für die auf ihn treffenden Lichtstrahlen zukommt. Dies kann beispielsweise in der Weise realisiert sein, dass der Schalterdrücker zumindest teilweise aus einem durchsichtigen Material besteht, so dass die vom Leuchtmittel ausgesandten Lichtstrahlen den Schalter inAccording to an expedient embodiment, the light source is arranged outside of the switch trigger in the housing and the light beams of the light source are directed to the switch trigger, which plays a visual forwarding function for the light rays striking it. This can be realized, for example, in such a way that the switch trigger at least partially consists of a transparent material, so that the light rays emitted by the light source switch in
Richtung des zu beleuchtenden Arbeitsfeldes durchdringen. Auf diese Weise kann ein gebündelter, auf den Schalter auftreffender Lichtstrahl nach Art einer Linse fokussiert, umgelenkt oder gegebenenfalls auch aufgefächert werden, um eine gewünschte Beleuchtungwirkung zu erzielen. Darüber hinaus ist es auch möglich, den auf den Schalter auftreffenden Lichtstrahl an der Oberfläche des Schalters reflektieren zu lassen, indem der Schalter beispielsweise mit einer verspiegelten Oberfläche oder einer polierten Oberfläche versehen ist, die eine Reflektion ermöglicht. Schließlich kann die Geometrie des Schalters auch für einen gewünschten optischen Effekt hergerichtet sein, beispielsweise dergestalt, dass der Schalter zur Bündelung oder - A -Penetrate the direction of the working field to be illuminated. In this way, a bundled, incident on the switch light beam can be focused, deflected or possibly fanned out in the manner of a lens to achieve a desired illumination effect. In addition, it is also possible to reflect the incident light beam on the switch on the surface of the switch by the switch is provided for example with a mirrored surface or a polished surface, which allows a reflection. Finally, the geometry of the switch can also be prepared for a desired optical effect, for example, such that the switch for bundling or - A -
zur Streuung von Licht eine gewölbte Kontur aufweist; die Geometrie des Schalters kann hierbei sowohl im Falle eines durchsichtigen Materials, durch das das Licht hindurchtritt, als auch im Falle einer Reflektion an der Oberfläche entsprechend hergerichtet sein. Diese Ausführung ist außerdem robust, da das Leuchtmittel innerhalb des Schalters vor Verschmutzung und Beschädigung geschützt ist.has a curved contour for scattering light; the geometry of the switch can be prepared here accordingly both in the case of a transparent material, through which the light passes, as well as in the case of a reflection on the surface. This design is also rugged because the lamp inside the switch is protected from dirt and damage.
Gemäß einer weiteren vorteilhaften Ausführung ist das Leuchtmittel in das Innere des Schalterdrückers integriert. Diese Ausführung ist besonders Platz sparend, da kein zusätzlicher Einbauraum für das Leuchtmittel vorgehalten werden muss. In dem Schalterdrücker ist entweder eine Öffnung für den Austritt der Lichtstrahlen eingebracht, die vom Leuchtmittel ausgesandt werden, oder die Wandung des als Hohlkörper ausgeführten Schalterdrückers besteht aus einem durchsichtigen Material, durch das die Lichtstrahlen hindurchtreten.According to a further advantageous embodiment, the lighting means is integrated into the interior of the switch trigger. This design is particularly space-saving, since no additional installation space for the light source must be kept. In the switch trigger either an opening for the exit of the light rays is emitted, which are emitted by the lamp, or the wall of the executed as a hollow body switch pusher consists of a transparent material through which the light rays pass.
Gemäß einer weiteren vorteilhaften Ausführung handelt es sich bei dem Schalterdrücker, der Bestandteil der Leuchteinrichtung ist, um einen Drehrichtungsumkehrschalterdrücker, mit dem die Drehrichtung des Antriebsmotors eingestellt bzw. umgekehrt wird. Der Drehrichtungsumkehrschalterdrücker erstreckt sich üblicherweise in Querrichtung durch das Motor- bzw. Getriebegehäuse der Handwerkzeugmaschine und steht je nach aktuell eingestellter Drehrichtung an einer der beiden Gehäuseseiten über. Der überstehende Teil desAccording to a further advantageous embodiment, the switch trigger, which is part of the lighting device, is a reversing switch switch with which the direction of rotation of the drive motor is set or reversed. The direction of rotation reversal switch pusher usually extends in the transverse direction through the motor or gear housing of the power tool and is depending on the currently set rotational direction on one of the two sides of the housing over. The supernumerary part of the
Drehrichtungsumkehrschalterdrückers nimmt an der Beleuchtung des Arbeitsfeldes teil. In einer weiteren Ausführung ist vorteilhafterweise an jeder Gehäuseseite jeweils einReverse direction switch pushbutton participates in the illumination of the working field. In a further embodiment is advantageously on each side of the housing each one
Leuchtmittel angeordnet, das bei entsprechender Einstellung des Drehrichtungsumkehrschalterdrückers aktiviert wird und den überstehenden Teil des Drehrichtungsumkehrschalterdrückers anleuchtet .Illuminant arranged, which is activated with appropriate adjustment of the reversing switch trigger and the protruding part of the reversing switch push-button illuminated.
Neben der externen Anordnung des Leuchtmittels außerhalb des Drehrichtungsumkehrschalterdrückers kommt aber auch die Integration des Leuchtmittels in den Innenraum des Drehrichtungsumkehrschalterdrückers in Betracht, wobei in diesem Fall in jedem Seitenbereich desIn addition to the external arrangement of the bulb outside the direction of rotation reversal switch trigger but also comes Integration of the bulb into the interior of the reversing switch pushbutton into consideration, in which case in each side region of the
Drehrichtungsumkehrschalterdrückers jeweils ein Leuchtmittel vorgesehen sein kann, das bei einem Überstand der entsprechenden Seite des Schalterdrückers über die Gehäuseseite seitlich herausragt und damit in eine Linie unmittelbar zum zu beleuchtenden Arbeitsfeld gelangt. Möglich ist aber auch eine Ausführung mit nur einem einzigen, gehäusefesten Leuchtmittel im Innenraum des Drehrichtungsumkehrschalterdrückers, wobei das vom Leuchtmittel ausgehende Licht über die aktuell überstehende Seite des Drehrichtungsumkehrschalterdrückers in Richtung Arbeitsfeld geleitet wird.Reverse direction switch trigger each a light source can be provided which protrudes laterally at a supernatant of the corresponding side of the switch trigger on the side of the housing and thus enters a line directly to the working area to be illuminated. It is also possible, however, a design with only a single, bulbs fixed to the housing in the interior of the reversing switch pushbutton, the light emanating from the bulb is passed over the currently protruding side of the reversing switch push-button towards working field.
Anstelle des oder zusätzlich zumInstead of or in addition to
Drehrichtungsumkehrschalterdrücker kann auch ein sonstiger Schalterdrücker Bestandteil der Leuchteinrichtung sein, beispielsweise der Betätigungsschalter, über den der Antriebsmotor in Betrieb genommen und die Drehzahl des Antriebsmotors eingestellt wird. In Betracht kommt auch ein Einschaltsperrendrücker für den Motorschalter oder ein Einschaltarretierungsdrücker für den Motorstromschalter.Direction of rotation reversing switch trigger can also be another switch trigger component of the lighting device, such as the operating switch, via which the drive motor is put into operation and the speed of the drive motor is set. Also contemplated is a power-on lockout button for the motor switch or a power-on lockout button for the motor power switch.
Weitere Vorteile und zweckmäßige Ausführungen sind den weiteren Ansprüchen, der Figurengeschreibung und den Zeichnungen zu entnehmen. Es zeigen:Further advantages and expedient embodiments can be found in the further claims, the description of the figures and the drawings. Show it:
Fig. 1 einen Schnitt durch eine Handwerkzeugmaschine, die als Akku-Bohrer bzw. -Schrauber ausgeführt ist, wobei benachbart zu einemFig. 1 shows a section through a hand tool, which is designed as a cordless drill or screwdriver, wherein adjacent to a
Drehrichtungsumkehrschalterdrücker ein Leuchtmittel angeordnet ist, dessen Lichtstrahlen auf den Drehrichtungsumkehrschalterdrücker treffen und von dort in Richtung Arbeitsfeld weitergeleitet werden,Direction of rotation reversal switch trigger a light source is arranged, meet the light rays on the reversing switch push-button and are forwarded from there in the direction of working field,
Fig. 2 die Handwerkzeugmaschine in einer Frontansicht. In den Figuren sind gleiche Bauteile mit gleichen Bezugszeichen versehen .Fig. 2 shows the hand tool in a front view. In the figures, the same components are provided with the same reference numerals.
Die in Fig. 1 dargestellte Handwerkzeugmaschine 1 weist ein Gehäuse 2 auf, bestehend aus einem Motorgehäuse 3 und einem etwa senkrecht zum Motorgehäuse 3 gerichteten Griffgehäuse 4, wobei Motorgehäuse 3 und Griffgehäuse 4 gegebenenfalls einteilig oder als separate Bauteile ausgeführt sind. Im Motorgehäuse 3 ist ein elektrischer Antriebsmotor 5 und außerdem ein Getriebe 6 aufgenommen, das von dem Antriebsmotor 5 betätigt wird und über das die Antriebsbewegung auf eine Spindel bzw. Werkzeugnahme 7 zur Aufnahme eines Werkzeuges übertragen wird. Bei dem Getriebe 6 handelt es sich beispielsweise um ein Planetengetriebe zur Umsetzung der hohen Motordrehzahl in die geringere Drehzahl der Werkzeugaufnahme.The hand tool 1 shown in Fig. 1 comprises a housing 2, consisting of a motor housing 3 and a directed approximately perpendicular to the motor housing 3 handle housing 4, wherein motor housing 3 and handle housing 4 are optionally made in one piece or as separate components. In the motor housing 3, an electric drive motor 5 and also a gear 6 is received, which is actuated by the drive motor 5 and via which the drive movement is transmitted to a spindle or tool holder 7 for receiving a tool. The transmission 6 is, for example, a planetary gear to implement the high engine speed in the lower speed of the tool holder.
Der Antriebsmotor 5 wird über einen Schalterdrücker 8, der relativ zum Gehäuse bewegt werden kann, in Betrieb genommen, der sich am Griffgehäuse 4 befindet, wobei über das Maß der Betätigung des Schalterdrückers 8, der intern auf einen Schalter 9 wirkt, die Drehzahl des Antriebsmotors eingestellt wird. Des Weiteren ist ein relativ zum Gehäuse beweglicher Drehrichtungsumkehrschalterdrücker 10 im Übergang zwischen dem Motorgehäuse 3 und dem Griffgehäuse 4 auf der Unterseite des Gehäuses angeordnet, der sich in Querrichtung quer zur Werkzeugbzw. Motorachse erstreckt und je nach aktueller Stellung an einer der beiden Seiten des Gehäuses übersteht. Über den Drehrichtungsumkehrschalterdrücker wird ein Drehrichtungsumkehrschalter betätigt, der die Drehrichtung des Antriebsmotors einstellt.The drive motor 5 is operated via a switch trigger 8 which can be moved relative to the housing, which is located on the handle housing 4, wherein the degree of actuation of the switch trigger 8, which acts internally on a switch 9, the speed of the drive motor is set. Furthermore, a relative to the housing movable reversing switch trigger 10 is disposed in the transition between the motor housing 3 and the handle housing 4 on the underside of the housing, which is transverse to Werkzeugbzw in the transverse direction. Motor axis extends and depending on the current position on one of the two sides of the housing protrudes. The direction of rotation reversal switch push-button is used to actuate a reversing direction switch which adjusts the direction of rotation of the drive motor.
Im unteren Bereich des Griffgehäuses 4 befindet sich ein austauschbares Akku-Pack 11, das zur Stromversorgung des elektrischen Antriebsmotors 5 dient.In the lower region of the handle housing 4 is a replaceable battery pack 11, which serves to power the electric drive motor 5.
Zur Beleuchtung des Arbeitsfeldes 13, das der Werkzeugaufnahme 7 vorgelagert ist, ist ein Leuchtmittel 12 vorgesehen, das im Bereich des Griffgehäuses unmittelbar unterhalb des Motorgehäuses benachbart zum Drehrichtungsumkehrschalterdrücker 10 angeordnet ist. Das Leuchtmittel 12 weist eine Lichtquelle auf, beispielsweise eine Glühbirne, eine LED oder OLED oder eine SMD-LED. Das Leuchtmittel 12 liegt bezogen auf das Arbeitsfeld 13 hinter dem und mit Abstand zumTo illuminate the working area 13, which is upstream of the tool holder 7, a light source 12 is provided, which in the Area of the handle housing immediately below the motor housing adjacent to the reversing direction switch lever 10 is arranged. The light-emitting means 12 has a light source, for example a light bulb, an LED or OLED or an SMD LED. The bulb 12 is based on the working field 13 behind and at a distance from
Drehrichtungsumkehrschalterdrücker 10, der erfindungsgemäß Bestandteil einer Leuchteinrichtung zur Beleuchtung des Arbeitsfeldes 13 ist. Diese Leuchteinrichtung umfasst demnach neben dem Leuchtmittel 12 auch denDirection of rotation reversing switch trigger 10, the invention is part of a lighting device for illuminating the working field 13. Accordingly, this lighting device also includes the light bulb 12 as well as the
Drehrichtungsumkehrschalterdrücker 10, der die Lichtstrahlen, welche vom Leuchtmittel 12 ausgesandt werden, in Richtung des Arbeitsfeldes 13 lenkt. Der Drehrichtungsumkehrschalterdrücker 10 besteht zu diesem Zweck zumindest in seinen seitlichen, aus dem Gehäuse herausragenden Bereichen aus einem durchsichtigen Material wie beispielsweise PMMA, PC oder PS. Die vom Leuchtmittel 12 ausgehenden Lichtstrahlen können die durchsichtige Wandung des Drehrichtungsumkehrschalterdrückers 10 durchdringen, wobei durch geeignete zusätzliche Maßnahmen wie beispielsweise eine entsprechende Krümmung in der Wandung desDirection of rotation reversing switch pusher 10, which directs the light rays emitted by the bulb 12 in the direction of the working field 13. The reversing switch trigger 10 is for this purpose at least in its lateral, protruding from the housing areas of a transparent material such as PMMA, PC or PS. The emanating from the light bulb 12 light rays can penetrate the transparent wall of the reversing direction switch lever 10, wherein by suitable additional measures such as a corresponding curvature in the wall of the
Drehrichtungsumkehrschalterdrückers ein Auffächerungseffekt oder auch ein Bündelungseffekt nach Art einer Linse erzeugt werden kann.Reverse direction switch trigger a fanning effect or a bundling effect can be generated in the manner of a lens.
Gemäß einer weiteren Ausführung ist vorgesehen, dass die innerhalb des Gehäuses liegende Oberfläche des Drehrichtungsumkehrschalterdrückers 10 die auftreffenden Lichtstrahlen des Leuchtmittels 12 reflektiert. Hierzu ist die Oberfläche des Drehrichtungsumkehrschalterdrückers 10 beispielsweise teilweise oder vollständig mit einer Beschichtung versehen, insbesondere verspiegelt, oder aber poliert, um auf diese Weise eine Reflexion der auftreffenden Lichtstrahlen zu erreichen .According to a further embodiment, it is provided that the surface of the direction of rotation reversal switch pusher 10 located inside the housing reflects the incident light beams of the luminous means 12. For this purpose, the surface of the reversing switch trigger 10 is provided for example partially or completely with a coating, in particular mirrored, or polished, in order to achieve in this way a reflection of the incident light beams.
In einer weiteren Ausführung, die in Fig. 1 strichliert dargestellt ist, ist das Leuchtmittel 12 in den Innenraum des als Hohlkörper ausgebildeten Drehrichtungsumkehrschalterdrückers 10 integriert. Diese Ausführung hat den Vorteil einer besonders kompakten Bauform. Hierbei kommt sowohl eine Ausführung mit nur einem einzigen Leuchtmittel 12 imIn a further embodiment, which is shown by dashed lines in Fig. 1, the bulb 12 is in the interior of the formed as a hollow body reversing switch trigger 10 integrated. This design has the advantage of a particularly compact design. Here comes both a version with only a single bulb 12 in
Drehrichtungsumkehrschalterdrücker 10 in Betracht als auch eine Ausführung mit mindestens zwei Leuchtmitteln, die vorzugsweise im Seitenbereich des Drehrichtungsumkehrschalterdrückers angeordnet sind. Die Wandung desDirection of rotation reversing switch pusher 10 into consideration as well as a design with at least two light sources, which are preferably arranged in the side region of the reversing switch push-button. The wall of the
Drehrichtungsumkehrschalterdrückers 10 ist auch in diesem Ausführungsbeispiel durchsichtig ausgeführt, damit die vom Leuchtmittel erzeugten Lichtstrahlen in Richtung desDirection of rotation reversal switch trigger 10 is made transparent in this embodiment, so that the light rays generated by the light source in the direction of
Arbeitsfeldes 13 austreten können. Gegebenenfalls kommt aber auch eine Austrittsöffnung für die Lichtstrahlen in der Wandung des Drehrichtungsumkehrschalterdrückers in Betracht.Working field 13 can escape. Optionally, however, an exit opening for the light rays in the wall of the reversing direction switch trigger comes into consideration.
Wie der Frontansicht nach Fig. 2 zu entnehmen, steht der Drehrichtungsumkehrschalterdrücker 10 seitlich über das Griffgehäuse 4 über, so dass eine Umlenkung der Lichtstrahlen, welche von dem Leuchtmittel erzeugt werden, in Richtung des Arbeitsfeldes 13 aus beiden Positionen des Drehrichtungsumkehrschalterdrückers 10 möglich ist. As can be seen from the front view according to FIG. 2, the direction of rotation reversal switch trigger 10 projects laterally over the grip housing 4, so that a deflection of the light beams generated by the illuminant in the direction of the working field 13 from both positions of the reversing switch trigger 10 is possible.

Claims

Ansprüche claims
1. Handwerkzeugmaschine, insbesondere elektrisch betriebene Handwerkzeugmaschine (1) wie beispielsweise Akku-Schrauber oder Akku-Bohrer, mit einem im Gehäuse (2) angeordneten Schalter (9) mit einem Schalterdrücker (10) zur Betätigung oder Einstellung eines Antriebsmotors (5) und mit einer Leuchteinrichtung zur Arbeitsfeldbeleuchtung, wobei die Leuchteinrichtung ein Leuchtmittel (12) umfasst, dadurch gekennzeichnet, dass der Schalterdrücker (10) einen Bestandteil der Leuchteinrichtung bildet, derart, dass vom Leuchtmittel (12) ausgesandte Lichtstrahlen über den1. Hand tool, in particular electrically operated hand tool (1) such as cordless screwdriver or cordless drill with a housing (2) arranged switch (9) with a switch trigger (10) for actuating or adjusting a drive motor (5) and with a luminous device for working field illumination, wherein the luminous device comprises a luminous means (12), characterized in that the switch trigger (10) forms a component of the luminous device, such that light rays emitted by the luminous means (12) pass over the luminous means
Schalterdrücker (10) zum Arbeitsfeld (13) geleitet sind.Switch lever (10) to the working field (13) are passed.
2. Handwerkzeugmaschine nach Anspruch 1, dadurch gekennzeichnet, dass das Leuchtmittel (12) am Gehäuse (2) außerhalb des Schalterdrückers (10) angeordnet ist und die Lichtstrahlen des Leuchtmittels (12) auf den Schalterdrücker (10) gerichtet sind.2. Hand tool according to Claim 1, characterized in that the lighting means (12) on the housing (2) outside of the switch trigger (10) is arranged and the light beams of the illuminant (12) are directed to the switch trigger (10).
3. Handwerkzeugmaschine nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass der Schalterdrücker (10) zumindest teilweise aus einem durchsichtigen Material besteht.3. Hand tool according to Claim 1 or 2, characterized in that the switch trigger (10) consists at least partially of a transparent material.
4. Handwerkzeugmaschine nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass die Oberfläche des Schalterdrückers (10) zumindest teilweise reflektierend ausgebildet ist.4. Hand tool according to one of claims 1 to 3, characterized in that the surface of the switch trigger (10) is formed at least partially reflective.
5. Handwerkzeugmaschine nach Anspruch 4, dadurch gekennzeichnet, dass die Oberfläche des Schalterdrückers (10) zumindest teilweise poliert ist.5. Hand tool according to Claim 4, characterized in that the surface of the switch trigger (10) is at least partially polished.
6. Handwerkzeugmaschine nach Anspruch 4 oder 5, dadurch gekennzeichnet, dass die Oberfläche des Schalterdrückers (10) zumindest teilweise verspiegelt ist.6. Hand tool according to Claim 4 or 5, characterized in that the surface of the switch trigger (10) is at least partially mirrored.
7. Handwerkzeugmaschine nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass der Schalterdrücker (10) zur7. Hand tool according to one of claims 1 to 6, characterized in that the switch trigger (10) for
Bündelung oder Streuung von Licht eine gewölbte Kontur aufweist.Bundling or scattering of light has a curved contour.
8. Handwerkzeugmaschine nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, dass der Schalterdrücker (10) relativ zum Gehäuse beweglich ist.8. Hand tool according to one of claims 1 to 7, characterized in that the switch trigger (10) is movable relative to the housing.
9. Handwerkzeugmaschine nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, dass der Schalterdrücker (10) Lichtaustrittsflächen aufweist, die zu Betätigungsflächen des Schalterdrückers (10) beabstandet sind, welche von einer Bedienperson zu betätigen sind.9. Hand tool according to one of claims 1 to 8, characterized in that the switch trigger (10) has light exit surfaces which are spaced from the actuating surfaces of the switch trigger (10), which are to be operated by an operator.
10. Handwerkzeugmaschine nach einem der Ansprüche 1 bis 9, dadurch gekennzeichnet, dass das Leuchtmittel (12) in das Innere des Schalterdrückers (10) integriert ist.10. Hand tool according to one of claims 1 to 9, characterized in that the lighting means (12) in the interior of the switch trigger (10) is integrated.
11. Handwerkzeugmaschine nach einem der Ansprüche 1 bis 10, dadurch gekennzeichnet, dass der Schalterdrücker (10) einen Drehrichtungsumkehrschalter betätigt .11. Hand tool according to one of claims 1 to 10, characterized in that the switch trigger (10) actuates a reversing direction switch.
12. Handwerkzeugmaschine nach einem der Ansprüche 1 bis 11, dadurch gekennzeichnet, dass der Schalterdrücker ein bewegliches Teil einer Einschaltsperre ist.12. Hand tool according to one of claims 1 to 11, characterized in that the switch trigger is a movable part of a switch-lock.
13. Handwerkzeugmaschine nach einem der Ansprüche 1 bis 12, dadurch gekennzeichnet, dass der Schalterdrücker ein bewegliches Teil einer Einschaltarretierung ist.13. Hand tool according to one of claims 1 to 12, characterized in that the switch trigger is a movable part of a Einschaltarretierung.
14. Handwerkzeugmaschine nach einem der Ansprüche 1 bis 13, dadurch gekennzeichnet, dass der Schalterdrücker einen Motorstromschalter (9) betätigt. 14. Hand tool according to one of claims 1 to 13, characterized in that the switch trigger actuates a motor power switch (9).
EP09781745A 2008-09-29 2009-08-12 Hand-held power tool Not-in-force EP2342051B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102008042426A DE102008042426A1 (en) 2008-09-29 2008-09-29 Hand tool
PCT/EP2009/060430 WO2010034566A1 (en) 2008-09-29 2009-08-12 Hand-held power tool

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EP2342051A1 true EP2342051A1 (en) 2011-07-13
EP2342051B1 EP2342051B1 (en) 2012-05-09

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EP09781745A Not-in-force EP2342051B1 (en) 2008-09-29 2009-08-12 Hand-held power tool

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US (1) US8529084B2 (en)
EP (1) EP2342051B1 (en)
CN (1) CN102164716A (en)
AT (1) ATE556822T1 (en)
DE (1) DE102008042426A1 (en)
WO (1) WO2010034566A1 (en)

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WO2010034566A1 (en) 2010-04-01
US20120106133A1 (en) 2012-05-03
ATE556822T1 (en) 2012-05-15
US8529084B2 (en) 2013-09-10
CN102164716A (en) 2011-08-24
EP2342051B1 (en) 2012-05-09
DE102008042426A1 (en) 2010-04-01

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