EP2794196B1 - Machine-outil électrique - Google Patents

Machine-outil électrique Download PDF

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Publication number
EP2794196B1
EP2794196B1 EP12790497.7A EP12790497A EP2794196B1 EP 2794196 B1 EP2794196 B1 EP 2794196B1 EP 12790497 A EP12790497 A EP 12790497A EP 2794196 B1 EP2794196 B1 EP 2794196B1
Authority
EP
European Patent Office
Prior art keywords
operating element
handle housing
operating
electrically operable
handle
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.)
Not-in-force
Application number
EP12790497.7A
Other languages
German (de)
English (en)
Other versions
EP2794196A1 (fr
Inventor
Cornelius Boeck
Daniel BARTH
Joachim Schadow
Sinisa Andrasic
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 EP2794196A1 publication Critical patent/EP2794196A1/fr
Application granted granted Critical
Publication of EP2794196B1 publication Critical patent/EP2794196B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • 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
    • 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

Definitions

  • the invention is based on an electrically operable Winkelschielfmaschine according to the preamble of claim 1, with at least one handle housing and with at least one switching unit having at least one at least one side mounted control.
  • an angle grinder is for example from the DE 195 07 955 A1 out.
  • the invention provides an electrically operable angle grinder according to the patent claim 1.
  • an "electrically operable machine tool” is to be understood here in particular as a machine tool which has at least one drive unit which can be operated by means of electrical energy.
  • the electrically operable machine tool is preferably designed as a portable machine tool, in particular as a portable, hand-held machine tool.
  • a "portable machine tool” is to be understood here in particular as a machine tool for machining workpieces that is transported by an operator without a transport machine can be.
  • the portable power tool has a mass which is less than 40 kg, preferably less than 10 kg and particularly preferably less than 7 kg.
  • the portable power tool is designed as an angle grinder.
  • a "handle housing” is to be understood here in particular at least one housing or at least one housing part region which is largely decoupled from a bearing of a drive and / or output unit of the machine tool, wherein at least one handle portion of the housing or the housing portion, in particular a designed as a stiffened handle portion housing portion, at least for the most part is umgreifbar by an operator to handle the machine tool with at least one hand.
  • the term "largely encompassable” is intended here in particular to encompass a component or a component region by means of an operator's hand along at least more than 70%, preferably more than 80% and particularly preferably more than 90% of an overall extension of one in an at least substantially vertical Defining the overall outer circumference of the component or of the component region extending to a longitudinal extension direction of the component or of the component region, the total extent of the overall circumference is in particular less than 40 cm, preferably less than 30 cm and particularly preferably less than 25 cm.
  • a palm and finger inner surfaces of the operator's hand are greater than 70%, preferably greater than 80% and particularly preferably greater than 90% of the total extension of the total outer circumference on the overall outer circumference, at least along a distance.
  • the handle housing is formed separately from a drive housing of the machine tool, which is intended to receive the drive and / or an output unit for supporting drive and / or output bearing forces.
  • the handle housing and the drive housing are integrally formed.
  • the handle housing has a handle-shaped handle portion on.
  • stem-shaped gripping area should in this case in particular define a housing part region of the handle housing which, in a longitudinal sectional plane in which the main extension direction of the machine tool extends along a direction extending at least substantially perpendicular to the main direction of extension, has a maximum extent, in particular less than 10 cm, preferably smaller than 8 cm and particularly preferably smaller than 6 cm, wherein at least one control surface of the handle housing in the housing part region of the handle housing is arranged.
  • the maximum extent, viewed in the longitudinal section plane is preferably limited by at least two parallel straight lines or by at least two straight lines inclined by an angle of less than 10 °, preferably less than 8 ° and particularly preferably less than 6 °, relative to one another the housing portion of the handle housing are formed.
  • the handle-shaped handle region is in particular at least an angle of less than 60 °, preferably less than 40 ° and more preferably less than 30 ° inclined relative to a main extension direction of the machine tool.
  • the operating element is arranged on the handle-shaped handle portion of the handle housing.
  • the handle housing in addition to the handle-shaped handle portion has a bow-shaped portion which is integrally formed on the handle-shaped handle portion.
  • the bow-shaped portion may preferably have an L-shaped configuration which extends from an end of the handle-shaped housing facing away from the handle-shaped handle portion L-shaped in the direction of the connection region.
  • the handle housing comprises at least two handle housing shell elements which are connectable to one another in a connecting plane.
  • the handle housing preferably has a shell construction.
  • the handle housing has a pot construction.
  • switching unit is intended here to define a unit having at least one operating element, which is directly from an operator is operable and which is intended to influence and / or change by means of an actuation and / or by an input of parameters, a process and / or a state of a unit coupled to the switching unit.
  • the operating element is provided for actuating at least one switching element of the switching unit.
  • the operating element is designed as a pawl element.
  • a “pawl element” should be understood here to mean, in particular, an operating element which has a longitudinal extent along a longitudinal extension direction of the operating element which is greater than a transverse extent of the operating element extending at least substantially perpendicular to the longitudinal extension direction, which runs at least substantially transversely to a main direction of movement of the operating element ,
  • substantially transversely is meant in particular an alignment of a direction and / or an axis relative to a reference direction and / or a reference axis, wherein the orientation of the direction and / or the axis at least different from an at least substantially parallel orientation to Reference direction and / or to the reference axis and in particular is skewed or at least substantially perpendicular to the reference direction and / or to the reference axis.
  • a maximum longitudinal extension of the pawl element is at least 2 times larger, preferably at least 4 times larger, and more preferably at least 6 times larger than a maximum transverse extent of the pawl element.
  • the pawl element has a maximum longitudinal extent which is greater than 3 cm, preferably greater than 6 cm and particularly preferably greater than 8 cm.
  • the pawl element preferably comprises a control surface, on which an operator can arrange at least three fingers to actuate the pawl element and which has at least one along the longitudinal direction of the pawl element extending longitudinal extent which is greater than 5 cm.
  • the term "substantially perpendicular” is intended here to define, in particular, an orientation of a direction relative to a reference direction, the direction and the reference direction, in particular in one plane, including an angle of 90 ° and the angle a maximum deviation of, in particular, less than 8 °, advantageously less than 5 ° and particularly advantageously less than 2 °.
  • the switching unit is provided by means of an actuation of the operating element to actuate the switching element to open or close a circuit to a power supply of at least one drive unit of the machine tool.
  • the switching unit is preferably provided to enable commissioning or deactivation of the machine tool.
  • the switching element is preferably formed by a mechanical, electrical and / or electronic switching element.
  • the term "cantilevered” is intended here to define, in particular, an arrangement of a bearing axis of a component, in particular of the operating element, in which the bearing axis is arranged at least at one end or at an edge region of an operating surface of the component and in particular during a course of the bearing axis through the component a distance, viewed along a longitudinal direction of the component, to the end of the component or to the edge region of the control surface, which is smaller than 30 mm, preferably smaller than 20 mm and particularly preferably smaller than 10 mm, wherein the bearing axis is preferably different a center bearing axis, the same distances, viewed along a direction extending at least substantially perpendicular to the bearing axis direction, to two opposite ends of the component.
  • the bearing axis extends outside of the component and the component is arranged movably on and / or along the bearing axis by means of bearing elements arranged on the component, in particular movably arranged, such as lever bearing elements.
  • the control element is mounted on several sides, such as in a translationally guided control element, which is guided on two opposite sides in guide elements of a translation guide unit.
  • Other arrangements of a bearing axis or a plurality of bearing axes of the operating element which appear appropriate to a person skilled in the art, are likewise conceivable.
  • the term "palm" here is intended to define in particular a metacarpal surface of a hand of an operator, wherein the metacarpal surface is in particular different from finger inner surfaces.
  • the electrically operable machine tool comprises at least one output housing, wherein the operating element is arranged in each operating state on one side of the handle housing, which is different from a further one of the output side of the output housing side facing the handle housing.
  • An "output side" is to be understood here in particular as one side of the electrically operable machine tool, from which a spindle of the output unit extends out of the output housing of the electrically operable machine tool. It can be advantageously ensured that the operating element in each operating state of the electrically operable machine tool according to the invention can be operated comfortably by means of a palm of a hand of an operator. In particular, a comfortable operability of an electrically operable machine tool can advantageously be achieved, which has a relative to a drive housing of the electrically operable machine tool rotatably mounted output housing.
  • the operating element is pivotally mounted about a pivot axis, which is arranged outside a control surface region of the operating element.
  • a "control surface area” is to be understood here as meaning, in particular, a region of the control element which, viewed along a longitudinal extension direction or along at least one substantially transverse to a main movement direction of the operating element, is delimited by at least two relatively spaced planes and in which at least one control surface , which is directly touchable to an actuation of the operating element by an operator, is completely arranged.
  • the pivot axis can thus, viewed along a direction of longitudinal extension of the operating element, be arranged laterally next to the operating surface region, in front of or behind the operating surface region. It can be used to advantage a lever ratio to a comfortable operation of the control to a low actuation and a small holding force to achieve an operation or to hold the operating element.
  • the pivot axis viewed along a longitudinal extension direction of the operating element, is arranged at a distance relative to an operating surface of the operating element.
  • the pivot axis, viewed along a longitudinal extension direction of the operating element be arranged in front of or behind the control surface.
  • the pivot axis of the control element is particularly preferably at least substantially perpendicular to the connection plane of the handle housing, in which the handle housing shell elements are connected to each other or abut each other.
  • connection area is intended here to define, in particular, a region of the handle housing, via which the handle housing is connected to the drive housing in a form-fitting, force-locking and / or material-locking manner or with which the handle housing rests directly on the drive housing.
  • an end of the operating element facing a connection region is to be understood here as an arrangement of points of the operating element relative to a center plane of the operating element which runs at least substantially perpendicular to the longitudinal extension direction of the operating element and which is at least substantially uniformly spaced from one another along the longitudinal extension direction the control element spaced apart arranged ends of the operating element is arranged, wherein all points of the operating element, which are arranged starting from the central plane in the direction of the connection region, viewed along the longitudinal extension direction of the operating element, are considered to be facing the connection region. It can be advantageously achieved ergonomic operation of the control. An operator can operate the control element particularly comfortably when gripping the handle housing by means of a palm of a hand of the operator.
  • the pivot axis is arranged on an end of the operating element remote from a connection region of the handle housing.
  • an ergonomic operability of the operating element can also advantageously be achieved.
  • a pivotable storage is advantageous largely insensitive to contamination of a bearing.
  • the operating element is mounted in a translationally movable manner.
  • a movement axis of the operating element preferably extends at least substantially parallel to the connecting plane of the handle housing. It can be advantageously achieved a precise guidance of the operating element during an operation.
  • a movement axis of the operating element extends at least substantially transversely to a longitudinal extension direction of the handle housing.
  • the movement axis extends in a translatory mounting of the operating element in the connecting plane of the handle housing.
  • the movement axis extends at a pivotable mounting of the operating element at least substantially perpendicular to the connection plane of the handle housing.
  • an operating surface of the operating element after an actuation, be at least partially at least substantially flush with an outer surface of the handle housing.
  • the term "at least substantially flush” should in particular be understood to mean an arrangement of the operating surface after an actuation of the operating element, in particular after swiveling the operating element into the handle housing, wherein the operating surface extends from a space enclosed by the handle housing in the direction of the outer surface of the handle Handle housing, viewed along a running at least substantially perpendicular to the outer surface of the handle housing direction, a maximum of 2 mm over the outer surface extends and particularly preferably extends to the maximum extent to the outer surface of the handle housing.
  • the operating surface of the operating element does not extend beyond the outer surface of the handle housing after actuation. It can be achieved advantageously in an actuated state as a result of a complete immersion of the operating element in the handle housing a compact arrangement of the operating element. Furthermore, an operator can advantageously be optically signaled that the operating element is in an actuated state.
  • the electrically operable machine tool comprises at least one switch-on blocking device which is provided to prevent a movement of the operating element as a result of an unintentional actuation of the operating element.
  • a "switch-on inhibitor” is to be understood here as meaning in particular a unit which is intended to at least in an operating state, a movement of a movably mounted component, in particular the operating element, along at least one route and / or to prevent at least one axis by means of a mechanical, electrical and / or electronic lock as far as possible.
  • the Einschaltsperrü is provided to prevent at least in an operating condition by means of a mechanical lock movement of the control element as far as possible.
  • the Einschaltsperrritt prevented at least in an operating condition by means of an electromagnetic force and / or a permanent magnetic force, such as by means of sliding magnets on the control element movement of the control as far as possible.
  • a permanent magnetic force such as by means of sliding magnets on the control element movement of the control as far as possible.
  • the Einschaltsperrillon on at least one release element which comprises an actuating portion which is at least partially disposed laterally next to a control surface of the control element.
  • the term "laterally beside” is to be understood here in particular as an arrangement of the actuating region of the release element relative to the operating element, the actuating region being viewed along a direction extending at least substantially perpendicular to the side wall region, in particular starting from the side wall portion viewed in a direction away from the handle housing direction, is arranged spaced relative to the control element.
  • an ergonomically sensible arrangement of the release element, in particular of the actuation region can be achieved.
  • the operating element has a maximum longitudinal extension which corresponds to at least 60% of a maximum longitudinal extension of the handle-shaped handle-shaped housing.
  • a maximum longitudinal extent of the operating element corresponds in particular to more than 75%, preferably more than 80% and particularly preferably more than 90% of the maximum longitudinal extent of the handle-shaped handle portion of the handle-shaped housing.
  • the maximum longitudinal extension of the operating element and the maximum longitudinal extension of the handle-shaped handle-shaped handle portion extend in a mounted state of the operating element and the handle housing along a in the connecting plane of the handle housing, in which the handle housing shell elements abut each other in an assembled state, respectively Direction that extends at least substantially transversely to the main direction of movement of the operating element. It can be advantageously achieved a large usable control surface of the control. Thus, advantageously, a comfortable to use control element can be created.
  • the operating element has a maximum transverse extent, which corresponds to at least 60% of a maximum transverse extent of the handle-shaped handle portion of the handle-shaped housing.
  • maximum transverse extent is intended here in particular a maximum extent of a component or a housing, in particular a multi-part housing in an assembled state, along a direction at least substantially perpendicular to the main extension direction of the machine tool and at least substantially transversely to at least one main movement direction of the operating element define.
  • a maximum transverse extent of the operating element corresponds to at least more than 65%, preferably more than 70% and particularly preferably more than 75% of the maximum transverse extent of the handle-shaped handle portion of the handle-shaped housing.
  • a machine tool switching device of an angle grinder comprising at least the switching unit.
  • the machine tool switching device has at least one bearing unit to a movable mounting of the pawl element.
  • the bearing unit can hereby be designed as a translational bearing unit, as a rotation bearing unit or a combination of a translational bearing unit and a rotation bearing unit, such as a lever gear bearing unit, etc. It can thus advantageously be easily retrofitted already existing machine tools with the switching unit can be achieved.
  • FIG. 1 shows an electrically operable machine tool 10a, which is formed by a portable machine tool 10a designed as an electrically operable angle grinder 12a.
  • the portable power tool 10a comprises at least one handle housing 14a and at least one switching unit 16a, which has at least one operating element 18a mounted at least on one side.
  • the operating element 18a is arranged on a side 20a of the handle housing 14a, which, when the handle housing 14a is grasped around, faces the proper handling of a palm of a hand of an operator's hand.
  • the portable power tool 10a has at least one power tool switching device which comprises at least the switching unit 16a.
  • the operating element 18a is arranged on a handle-shaped grip area 54a of the handle housing 14a.
  • the handle-shaped handle portion 54a of the handle housing 14a constitutes a main handle of the portable power tool 10a.
  • the main handle formed by the handle-shaped handle portion 54a at least substantially extends from a connection portion 34a of the handle housing 14a in a direction away from the connection portion 34a direction to a side 60a of the handle housing 14a, on which a cable designed as an electrically operated angle grinder 12a portable Machine tool 10a is arranged for power supply.
  • a cable designed as an electrically operated angle grinder 12a portable Machine tool 10a is arranged for power supply.
  • the Stalk-shaped grip portion 54a of the handle housing 14a is inclined by an angle smaller than 30 ° relative to a main extension direction 62a of the handle housing 14a or to a main extension direction 64a of the portable power tool 10a.
  • the portable power tool 10a formed as the electrically operable angle grinder 12a further includes a guard unit 66a, a drive housing 68a, and an output housing 22a.
  • the operating element 18a is in this case arranged in each operating state of the portable power tool 10a on the side 20a of the handle housing 14a, which is different from a further output side 24a of the output housing 22a facing side 26a of the handle housing 14a.
  • From the output housing 22a extends on the output side 24a of the output housing 22a as a spindle (not shown here) formed output shaft of an output unit 70a of the portable power tool 10a, on which a machining tool 72a for machining a workpiece (not shown here) fixed can be.
  • the machining tool 72a is designed as a grinding wheel.
  • the machining tool 72a is formed as a separating or polishing wheel.
  • the portable power tool 10a includes the drive housing 68a for receiving a drive unit 74a of the portable power tool 10a and the output housing 22a for receiving the output unit 70a.
  • the drive unit 74a is provided to rotate the machining tool 72a via the output unit 70a.
  • the machining tool 72a can in this case by means of a fastener (not shown here) for machining a workpiece rotatably connected to the spindle.
  • the machining tool 72a can be rotationally driven in an operation of the portable power tool 10a.
  • the output unit 70a is connected to the drive unit 74a via a drive element (not shown here in detail) designed as a pinion and rotatably drivable.
  • the drive unit 74a is connected to the drive unit 74a in a manner already known to a person skilled in the art.
  • an auxiliary handle 76a is arranged on the output housing 22a. The auxiliary handle 76a extends in a state mounted on the output housing 22a transversely to the main direction of extent 64a of the portable power tool 10a.
  • FIG. 2 shows a detailed view of the arranged on the handle housing 14a control element 18a of the switching unit 16a.
  • the operating element 18a has a curved outer contour.
  • the operating element 18a has a convex outer contour relative to the handle housing 14a.
  • the operating element 18a is mounted pivotably about a pivot axis 28a of the operating element 18a, which is arranged outside a control surface area 30a of the operating element 18a.
  • the pivot axis 28a of the operating element 18a extends at least substantially perpendicular to the main extension direction 62a of the handle housing 14a or at least substantially perpendicular to the main extension direction 64a of the portable power tool 10a.
  • the pivot axis 28a extends at least substantially perpendicular to a connection plane of the handle housing 14a.
  • two handle housing shell elements 78a, 80a of the handle housing 14a are connected together in an assembled state.
  • the pivot axis 28a is arranged on a connecting region 34a of the handle housing 14a facing the end 36a of the operating element 18a.
  • the operating element 18a is pivotally mounted on the end 36a facing the connection region 34a of the handle housing 14a.
  • the operating element 18a is pivotally mounted about the pivot axis 28a, which is arranged outside a control surface area 30a of the operating element 18a.
  • the pivot axis 28a viewed along a longitudinal extension direction of the operating element 18a, arranged relative to a control surface 32a of the operating element 18a spaced.
  • the longitudinal extension direction of the operating element 18a extends in the connecting plane of the handle housing 14a.
  • a movement axis 40a of the operating element 18a designed as the pivot axis 28a runs at least substantially transversely to a longitudinal extension direction of the handle housing 14a.
  • the longitudinal extension direction of the handle housing 14a extends at least substantially parallel to the main extension direction 62a of the handle housing 14a or at least substantially parallel to the main extension direction 64a of the portable power tool 10a.
  • the operating surface 32a of the operating element 18a extends in an unactuated state of the operating element 18a, viewed along an at least substantially perpendicular to an outer surface 42a of the handle housing 14a extending direction, starting from an enclosed by the handle housing 14a interior of the handle housing 14a in one of the handle housing 14a opposite direction over the outer surface 42a of time. Furthermore, the operating surface 32a of the operating element 18a, after an actuation of the operating element 18a, is at least partially at least substantially flush with the outer surface 42a of the handle housing 14a.
  • the operating element 18a is pivoted as a result of an actuation in the direction of the handle housing 14a in the handle housing 14a about the pivot axis 28a ( FIG. 3 ).
  • the operating surface 32a is convexly convexed relative to the handle housing 14a.
  • the operating surface 32a is formed in correspondence with the outer surface 42a of the handle-shaped handle portion 54a of the handle housing 14a.
  • the portable power tool 10a has at least one switch-on blocking unit 44a, which is intended to prevent a movement of the operating element 18a due to an unintentional actuation of the operating element 18a.
  • the Einschaltsperrillon 44a has at least one release element 46a, which comprises an actuating portion 48a, which is at least partially disposed laterally next to a control surface 32a of the control element 18a.
  • the release element 46a is arranged on the handle housing 14a in a region of an end of the handle housing 14a facing the connection region 34a.
  • the release member 46a is disposed entirely outside the handle-shaped grip portion 54a. In this case, at least the actuating region 48a of the release element 46a is arranged outside the handle-shaped grip region 54a.
  • the release element 46a is pivotally mounted about at least one release movement axis 82a.
  • the release movement axis 82a is thus designed as a release pivot axis.
  • the release element 46a has at least the release movement axis 82a, which extends in a plane extending at least substantially perpendicular to the pivot axis 28a of the operating element 18a.
  • the release movement axis 82a extends at least substantially parallel to the connection plane of the handle housing 14a.
  • the release movement axis 82a runs at least substantially transversely to the pivot axis 28a of the operating element 18a.
  • the switch-on blocking unit 44a has at least one further release element 84a.
  • the further release element 84a is likewise arranged on the handle housing 14a in the region of the end of the handle housing 14a facing the connection region 34a.
  • the further release element 84a also completely outside the handle-shaped handle portion 54a arranged.
  • at least one actuating region 86a of the further release element 84a is arranged outside the handle-shaped grip region 54a.
  • the further release element 84a is arranged mirror-symmetrically to the release element 46a.
  • the further release element 84a at least the actuating portion 86a, which is at least partially disposed laterally adjacent to the control surface 32a of the control element 18a with respect to a at least substantially perpendicular to the pivot axis 28a of the control element 18a extending plane mirror symmetry to the actuating portion 48a of the release element 46a.
  • the further release element 84a is pivotally mounted about at least one further release movement axis 88a.
  • the release element 46a and the further release element 84a is mounted translationally movable on the handle housing 14a.
  • the further release movement axis 88a is designed as a release pivot axis.
  • the further release movement axis 88a in this case extends in a plane extending at least substantially perpendicular to the pivot axis 28a of the operating element 18a.
  • the further release movement axis 88a extends at least substantially parallel to the connection plane of the handle housing 14a.
  • the further release movement axis 88a runs at least substantially transversely to the pivot axis 28a of the operating element 18a.
  • the further release movement axis 88a extends at least substantially parallel to the release movement axis 82a of the release element 46a.
  • the release element 46a and the further release element 84a are mounted so that they can move relative to one another. However, it is also conceivable that the release element 46a and the further release element 84a are rigidly coupled together.
  • the portable power tool 10a has at least one motion-dependency unit 90a, which couples the release element 46a and the further release element 84a with one another, at least in an assembled state.
  • the movement dependency unit 90a is provided to move the release member 46a and the further release member 84a in opposite directions due to an operation of the release member 46a or the further release member 84a.
  • the release member 46a and the further release member 84a are always moved together by means of the movement dependency unit 90a due to an operation of the release member 46a or the further release member 84a.
  • the releasing member 46a and the further releasing member 84a are moved in a direction toward the handle housing 14a by the operation of the releasing member 46a or the further releasing member 84a in a direction toward the handle housing 14a by means of the movement dependency unit 90a.
  • the release element 46a or the further release element 84a forces are transmitted by means of the movement dependency unit 90a between the release element 46a and the further release element 84a, which cause an interdependent movement of the release element 46a and the further release element 84a.
  • the portable power tool 10a has an electrical and / or electronic start-up lock in addition to the power-lock unit 44a which, for example, allows energizing the drive unit 74a as soon as a sensor unit of the portable power tool 10a a concern of another hand of an operator on the auxiliary handle 76a in addition to the presence of a hand on the handle housing 14a, in particular the handle-shaped handle portion 54a, sensed and thus via a control and / or regulating unit of the portable power tool 10a, which evaluates the sensed characteristics and processed , which deactivates electrical and / or electronic start-up lock to allow commissioning of the portable power tool 10a.
  • the switching unit 16a has a spring element (not shown here in detail) for forming a deadman circuit function.
  • the spring element is provided, as a result of an action of a spring force on the operating element 18a to allow movement of the operating element 18a after canceling an action of an operating force of an operator on the operating element 18a in a direction away from the handle housing 14a direction in an initial position of the operating element 18a.
  • the spring element is formed by a switching element of a switching element (not shown here in detail) with a spring force acting on the spring element of the switching element.
  • the spring element exerts a spring force on the control element via the switch plunger.
  • the operating element 18a is moved in the direction away from the handle housing 14a after the action of an operating force of an operator has been removed.
  • the control element 18a is moved to an initial position.
  • the operating element 18a has a maximum transverse extent 56a which extends over at least a majority of at least one maximum transverse extent 58a of the handle-shaped handle portion 54a of the handle housing 14a.
  • the maximum transverse extent 56a of the operating element 18a corresponds to at least 60% of the maximum transverse extent 58a of the handle-shaped grip area 54a of the handle housing 14a.
  • a ratio of the maximum transverse extent 56a of the operating element 18a to the maximum transverse extent 58a of the handle-shaped grip area 54a of the handle housing 14a is at least greater than 1 to 2.5.
  • the maximum transverse extent 56a of the operating element 18a extends along a direction which runs at least substantially perpendicular to the main extension direction 62a of the handle housing 14a or at least substantially perpendicular to the main extension direction 64a of the portable power tool 10a and at least substantially transversely to at least one main movement direction of the operating element 18a.
  • the maximum transverse extent 56a of the operating element 18a extends at least substantially parallel to the pivot axis 28a of the operating element 18a.
  • the maximum transverse extent 58a of the handle-shaped handle portion 54a of the handle housing 14a also extends along the at least substantially perpendicular to the main extension direction 62a of the handle housing 14a or at least substantially perpendicular to the main extension direction 64a of the portable power tool 10a and at least substantially transversely at least to a main movement direction of the operating element 18a running direction.
  • the operating element 18a has a maximum longitudinal extension 50a which extends over at least a major portion of a maximum longitudinal extent 52a of the handle-shaped handle portion 54a of the handle housing 14a.
  • the maximum longitudinal extension 50a of the operating element 18a corresponds to at least 60% of the maximum longitudinal extension 52a of the handle-shaped handle region 54a of the handle housing 14a.
  • a ratio of the maximum longitudinal extent 50a of the operating element 18a to the maximum longitudinal extent 52a of the handle-shaped handle portion 54a of the handle housing 14a is at least greater than 1 to 1.4.
  • the maximum longitudinal extension 50a of the operating element 18a extends in an assembled state of the operating element 18a on the handle housing 14a along a direction extending in the connecting plane of the handle housing 14a direction, which extends at least substantially transverse to a main direction of movement of the operating element 18a.
  • the maximum longitudinal extension 50a of the operating element 18a extends along a direction extending at least substantially perpendicular to the pivot axis 28a of the operating element 18a.
  • the maximum longitudinal extent 50a of the operating element 18a is derived from a bearing area (not shown here) in the handle housing 14a of the operating element 18a, through which the pivot axis 28a of the operating element 18a extends, up to the end 38a of the connecting portion 34a of the handle housing 14a Operating element 18a ( FIG. 2 ).
  • the maximum longitudinal extent 52a of the handle-shaped handle portion 54a of the handle housing 14a also extends along the at least substantially perpendicular to the pivot axis 28a of the operating element 18a extending direction.
  • FIGS. 4 and 5 Alternative embodiments are shown. Substantially identical components, features and functions are basically numbered by the same reference numerals. To distinguish the embodiments, the letters a to c are added to the reference numerals of the embodiments. The following description is limited essentially to the differences from the first embodiment in the FIGS. 1 to 3 , wherein with respect to the same components, features and functions on the description of the first embodiment in the FIGS. 1 to 3 can be referenced.
  • FIG. 4 shows a detailed view of a arranged on a handle housing 14b of an electrically operable machine tool 10b operating element 18a of a switching unit 16b of the electrically operable machine tool 10b.
  • the electrically operable machine tool 10b has an at least substantially analogous construction to the electrically operable machine tool 10a FIG. 1 on.
  • the electrically operable machine tool 10b is also designed as a portable machine tool 10b, which is formed by an electrically operable angle grinder 12b.
  • the operating element 18b is arranged on a side 20b of the handle housing 14b, which, when the handle housing 14b is gripped around, faces the proper handling of a palm of a hand of an operator's hand.
  • the operating element 18b of the switching unit 16b is mounted pivotably about a pivot axis 28b of the operating element 18b, which is arranged outside a control surface area 30b of the operating element 18b.
  • the pivot axis 28b of the operating element 18b extends at least substantially perpendicular to a main extension direction 62b of the handle housing 14b or at least substantially perpendicular to a main extension direction 64b of the portable power tool 10b.
  • the pivot axis 28b extends at least substantially perpendicular to a connecting plane of the handle housing 14b.
  • the pivot axis 28b is arranged on a connection area 34b of the handle housing 14b facing away from the end 38b of the control element 18b.
  • the control element 18b is pivotally mounted on the end 38b remote from the connection region 34b of the handle housing 14b.
  • the operating element 18b is pivotally mounted about the pivot axis 28b, which is arranged outside of a control surface area 30b of the control element 18b.
  • the pivot axis 28b viewed along a longitudinal extension direction of the operating element 18b, relative to a control surface 32b of the control element 18b arranged spaced.
  • the longitudinal extension direction of the operating element 18b extends in the connecting plane of the handle housing 14b. Furthermore, a movement axis 40b of the operating element 18b designed as the pivot axis 28b extends at least substantially transversely to a longitudinal extension direction of the handle housing 14b. An operating surface 32b of the operating element 18b extends in an unactuated state of the operating element 18b, viewed along at least substantially perpendicular to an outer surface 42b of the handle housing 14b, starting from an interior of the handle housing 14b enclosed by the handle housing 14b and facing away from the handle housing 14b Direction across the outer surface 42b away.
  • FIG. 5 shows a detailed view of a arranged on a handle housing 14c of an electrically operable machine tool 10c operating element 18c of a switching unit 16c of the electrically operable machine tool 10c.
  • the electrically operable machine tool 10c has an at least substantially analogous structure to the electrically operable machine tool 10a FIG. 1 on. Thus, with respect to a description or characteristics of the electrically operable machine tool 10c of the further embodiment, at least substantially to the description of FIG. 1 to get expelled.
  • the electrically operable machine tool 10c is also designed as a portable machine tool 10c, which is formed by an electrically operable angle grinder 12c.
  • the operating element 18c is arranged on a side 20c of the handle housing 14c which, when the handle housing 14c is gripped around, is designed to properly handle a palm of a hand of an operator.
  • the operating element 18c is mounted in a translationally movable manner on the handle housing 14c.
  • a movement axis 40c of the operating element 18c runs at least substantially transversely to a longitudinal extension direction of the handle housing 14c. Further, the movement axis 40c of the operating member 18c extends in a connecting plane of the handle housing 14c.
  • the operating element 18c is mounted on two sides.
  • a guide bearing element (not shown here in detail) of the switching unit 16c is arranged on a connecting region 34c of the handle housing 14c facing the end 36c of the operating element 18c. Furthermore, a further guide bearing element (not shown here in detail) of the switching unit 16c is disposed on an end 38c of the operating element 18c facing away from the connection region 34c of the handle housing 14c.
  • the operating element 18c is mounted or guided movably on the handle housing 14c in another manner that appears appropriate to a person skilled in the art.
  • the movement axis 40c is formed by the guide bearing element.
  • Another movement axis 92c of the operating element 18c is formed by the further guide bearing element.
  • the guide bearing element and the further guide bearing element may be formed as linear guide elements or as joint guide elements, which allow a translational movement of the operating element 18c.
  • An operating surface 32c of the operating element 18c extends in an unactuated state of the operating element 18c, viewed along at least substantially perpendicular to an outer surface 42c of the handle housing 14c, starting from an interior of the handle housing 14c enclosed by the handle housing 14c and facing away from the handle housing 14c Direction across the outer surface 42b away. Furthermore, the operating surface 32c of the operating element 18c after actuation of the operating element 18c at least partially at least substantially flush with the outer surface 42c of the handle housing 14c. Thus, the operating element 18c is moved into the handle housing 14c as a result of an actuation in the direction of the handle housing 14c along the movement axis 40c.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Portable Power Tools In General (AREA)
  • Surgical Instruments (AREA)
  • Harvester Elements (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)

Claims (11)

  1. Meuleuse d'angle à fonctionnement électrique, comprenant au moins un boîtier à poignée (14a ; 14b ; 14c), comprenant au moins une unité de commutation (16a ; 16b ; 16c) qui possède au moins un élément de commande (18a ; 18b ; 18c) supporté au moins d'un côté, l'élément de commande (18a ; 18b ; 18c), dans chaque état opérationnel, étant disposé sur un côté (20a ; 20b ; 20c) du boîtier à poignée (14a ; 14b ; 14c) qui est différent d'un côté (26a ; 26b ; 26c) supplémentaire du boîtier à poignée (14a ; 14b ; 14c) faisant face à un côté de sortie (24a) d'un carter de sortie (22a) de la meuleuse d'angle, l'unité de commutation (16a ; 16b ; 16c) étant conçue pour actionner un élément de commutation de l'unité de commutation (16a ; 16b ; 16c) par le biais d'un actionnement de l'élément de commande (18a ; 18b ; 18c) afin d'ouvrir ou de fermer un circuit électrique destiné à une alimentation en énergie d'au moins une unité d'entraînement (74a) de la machine-outil (10a ; 10b ; 10c), l'élément de commande (18a ; 18b ; 18c) étant disposé sur un côté (20a ; 20b ; 20c) du boîtier à poignée (14a ; 14b ; 14c) qui, lors d'une préhension enveloppante du boîtier à poignée (14a ; 14b ; 14c) en vue d'une manipulation dans les règles de l'art, fait face à une surface intérieure d'une main d'un opérateur, caractérisée en ce que l'élément de commande (18a ; 18b ; 18c) possède une projection longitudinale maximale (50a ; 50b ; 50c) qui correspond au minimum à 60 % d'une projection longitudinale maximale (52a ; 52b ; 52c) d'une zone de préhension (54a ; 54b ; 54c) en forme de manche du boîtier à poignée (14a ; 14b ; 14c).
  2. Meuleuse d'angle à fonctionnement électrique selon la revendication 1, caractérisée en ce que l'élément de commande (18a ; 18b) est monté pivotant autour d'un axe de pivotement (28a ; 28b) qui est disposé en-dehors d'une zone de surface de commande (30a ; 30b) de l'élément de commande (18a ; 18b).
  3. Meuleuse d'angle à fonctionnement électrique selon la revendication 2, caractérisée en ce que l'axe de pivotement (28a ; 28b), vu le long d'une direction de projection longitudinale de l'élément de commande (18a ; 18b), est disposé espacé par rapport à une surface de commande (32a ; 32b) de l'élément de commande (18a ; 18b).
  4. Meuleuse d'angle à fonctionnement électrique selon l'une des revendications 2 à 3, caractérisée en ce que l'axe de pivotement (28a) est disposé à une extrémité (36a) de l'élément de commande (18a) faisant face à une zone de rattachement (34a) du boîtier à poignée (14a).
  5. Meuleuse d'angle à fonctionnement électrique selon l'une des revendications 2 à 3, caractérisée en ce que l'axe de pivotement (28b) est disposé à une extrémité (36b) de l'élément de commande (18b) opposée face à une zone de rattachement (34b) du boîtier à poignée (14b).
  6. Meuleuse d'angle à fonctionnement électrique selon la revendication 1, caractérisée en ce que l'élément de commande (18c) est monté avec mobilité translatoire.
  7. Meuleuse d'angle à fonctionnement électrique selon la revendication 6, caractérisée en ce qu'un axe de déplacement (40a ; 40b ; 40c) de l'élément de commande (18a ; 18b ; 18c) s'étend au moins sensiblement transversalement par rapport à une direction de projection longitudinale du boîtier à poignée (14a ; 14b ; 14c).
  8. Meuleuse d'angle à fonctionnement électrique selon l'une des revendications précédentes, caractérisée en ce qu'une surface de commande (32a ; 32b ; 32c) de l'élément de commande (18a ; 18b ; 18c), après un actionnement, se verrouille au moins partiellement au moins sensiblement à fleur avec une surface externe (42a ; 42b ; 42c) du boîtier à poignée (14a ; 14b ; 14c).
  9. Meuleuse d'angle à fonctionnement électrique selon l'une des revendications précédentes, caractérisée par au moins une unité de blocage de mise en marche (44a ; 44b ; 44c), laquelle est conçue pour empêcher un mouvement de l'élément de commande (18a ; 18b ; 18c) suite à un actionnement involontaire de l'élément de commande (18a ; 18b ; 18c).
  10. Meuleuse d'angle à fonctionnement électrique selon la revendication 9, caractérisée en ce que l'unité de blocage de mise en marche (44a ; 44b ; 44c) possède au moins un élément de libération (46a ; 46b ; 46c) qui comporte une zone d'actionnement (48a ; 48b ; 48c), laquelle est disposée au moins partiellement latéralement à côté d'une surface de commande (32a ; 32b ; 32c) de l'élément de commande (18a ; 18b ; 18c).
  11. Meuleuse d'angle à fonctionnement électrique selon l'une des revendications précédentes, caractérisée en ce que l'élément de commande (18a) possède une projection transversale maximale (56a) qui correspond au moins à 60 % d'une projection transversale maximale (58a) d'une zone de préhension (54a) en forme de manche du boîtier à poignée (14a).
EP12790497.7A 2011-12-23 2012-11-12 Machine-outil électrique Not-in-force EP2794196B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102011089719A DE102011089719A1 (de) 2011-12-23 2011-12-23 Elektrisch betreibbare Werkzeugmaschine
PCT/EP2012/072367 WO2013092002A1 (fr) 2011-12-23 2012-11-12 Machine-outil électrique

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EP2794196A1 EP2794196A1 (fr) 2014-10-29
EP2794196B1 true EP2794196B1 (fr) 2016-08-17

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EP (1) EP2794196B1 (fr)
CN (1) CN104302450B (fr)
DE (1) DE102011089719A1 (fr)
WO (1) WO2013092002A1 (fr)

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Also Published As

Publication number Publication date
DE102011089719A1 (de) 2013-06-27
CN104302450B (zh) 2016-11-02
US20150014013A1 (en) 2015-01-15
CN104302450A (zh) 2015-01-21
EP2794196A1 (fr) 2014-10-29
WO2013092002A1 (fr) 2013-06-27

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