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WO2012171705A1 - Machine-outil portative - Google Patents

Machine-outil portative Download PDF

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Publication number
WO2012171705A1
WO2012171705A1 PCT/EP2012/057770 EP2012057770W WO2012171705A1 WO 2012171705 A1 WO2012171705 A1 WO 2012171705A1 EP 2012057770 W EP2012057770 W EP 2012057770W WO 2012171705 A1 WO2012171705 A1 WO 2012171705A1
Authority
WO
WIPO (PCT)
Prior art keywords
tool
unit
hand tool
tool spindle
spindle
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.)
Ceased
Application number
PCT/EP2012/057770
Other languages
German (de)
English (en)
Inventor
Wolfgang Hirschburger
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 WO2012171705A1 publication Critical patent/WO2012171705A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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

Definitions

  • the invention relates to a hand tool according to the preamble of claim 1. It is already a hand tool with at least one tool spindle, a drive unit which is intended to drive the tool spindle at a speed greater than 10 000 min "1 , and with at least one display unit which is provided to display an operator at least one parameter, been proposed.
  • the invention relates to a hand tool with at least one tool spindle, a drive unit which is intended to drive the tool spindle at a speed greater than 10 000 min "1 , and at least one display unit which is provided to an operator at least one characteristic
  • the handheld power tool has a lighting unit which is intended to illuminate a working area and which is formed at least partially in one piece with the display unit
  • a "tool spindle” should in particular be understood to mean a shaft which during operation transmits a torque to a tool chuck of the hand tool.
  • the tool spindle transmits the torque directly to the tool chuck.
  • the tool spindle is rotatable with the Tool chuck connected.
  • the tool spindle is firmly connected in the axial direction with the tool chuck.
  • a "drive unit” is to be understood as a unit which, during operation, rotationally drives an insert tool fastened in the tool chuck.
  • the drive unit has an electric motor with a maximum power between 15 watts and 150 watts, preferably between 20 watts and 100 watts.
  • a maximum power is to be understood as a power which the drive unit maximally receives during operation in order to drive the tool spindle.
  • "Provided” is to be understood in particular to be specially programmed, designed and / or equipped.
  • a “rotational speed” is to be understood as meaning a parameter which indicates a rotational speed of the tool spindle about an axis of rotation of the tool spindle
  • the drive unit drives the tool spindle at a rotational speed greater than 15,000 min "1, particularly advantageously greater than 20,000 min " 1 .
  • a “display unit” is to be understood as a unit which is provided to display at least one parameter to an operator in at least one operating state.
  • a “parameter” should be understood to mean, in particular, an information carrier which contains at least one piece of information about a state of the art which appears meaningful to a person skilled in the art
  • Hand tool preferably, however, includes information about a battery state, a battery temperature, a motor temperature, an electronic temperature, a speed of the tool spindle, a werkzeuganpresstik and / or a movement of the hand tool.
  • the display unit could illuminate the work area white during normal operation, illuminate yellow when the battery charge is low, and / or illuminate red when the battery, the electric motor, and / or the electronics overheat.
  • the display unit could output a color of the illumination from a pressure transmitted to the insertion tool.
  • a binary information that only describes whether the
  • a "lighting unit” should be understood to mean, in particular, a unit having at least two lighting means and at least one optical system. ⁇ br/> ⁇ br/>
  • the lighting unit has a lighting means carrier which is intended to connect the lighting means at least mechanically.
  • the Lamp carrier formed as a circuit board.
  • an energy source and / or an electrical connection which connects the illuminant carrier to a battery, the energy source and / or an electronic unit should not be part of the lighting unit.
  • a "working area” is to be understood as a region relative to the lighting unit which is less than 20 mm from a
  • Spaced area is arranged in which takes place during operation, a workpiece machining.
  • the working area is arranged on a side of the tool spindle facing away from the drive unit.
  • the phrase "at least partially in one piece" is intended to mean that at least one component of the lighting unit fulfills a function of displaying the parameter as well as a function of illuminating the working area
  • the handheld power tool could have an output device which is intended to output a characteristic quantity tactually and / or acoustically.
  • the display unit is provided to output at least two different characteristics, whereby an advantageous operation can be achieved.
  • information about a workpiece machining for example, a rotational speed of the tool spindle, and information about a state of the power tool, such as a state of charge of the battery, are output simultaneously.
  • the expression "different characteristics output” is intended to mean, in particular, that the display unit outputs information of different parameters in two different operating states and / or advantageously at the same time.
  • the display unit display a parameter of a rotational speed in at least one operating state, whereby the operator can easily set an advantageous rotational speed for an application tool and can advantageously remember this.
  • the display unit in at least one operating state indicates a parameter of a temperature, whereby damage to the power tool can be avoided.
  • the operator can be informed in good time if further work due to a high temperature is soon no longer possible.
  • Display unit provided at least to issue a warning to the operator upon reaching a threshold temperature.
  • the display unit in at least one operating state, display a parameter of a battery charge state, whereby the operator can recognize how long he can continue to work without charging a battery of the portable power tool.
  • information about a quantity of energy stored in the battery is to be understood as a "battery state of charge.”
  • the display unit is provided at least for reaching a threshold value of the battery state of charge
  • the lighting unit is intended to emit light with different colors.
  • the luminous fluxes have spectrums that can be differentiated by an operator in two operating states.
  • one illuminant could be designed to emit a white luminous flux and the other illuminant to provide a red and luminous flux / or green luminous flux Alternatively or additionally, at least one of the
  • Illuminant be designed as an RGB LED.
  • the lighting means is provided to illuminate the work area in color.
  • the lighting means could be provided to radiate out of the hand tool housing on a side of the hand tool housing facing away from the tool axis, in particular at least partially perpendicular to the axis of rotation of the tool spindle.
  • the lighting unit could have a luminous ring which encloses the axis of rotation between a grip region of the hand tool housing and a workpiece side in a circular manner, and in particular does not illuminate the workpiece.
  • the lighting unit has at least two lighting means which are arranged on an axial plane of the tool spindle with respect to the tool spindle at an angle of less than 125 degrees to each other.
  • an "axial plane of the tool spindle” should be understood to mean a plane which is aligned perpendicular to the axis of rotation of the tool spindle.
  • An angle with respect to the tool spindle shall be understood to mean, in particular, an angle which is arranged between two jets which Start on the axis of rotation of the tool spindle and cut each one of the bulbs.
  • the beams are arranged on the axial plane.
  • Illuminating means an equal distance from the axis of rotation of the tool spindle. This means that the bulbs are arranged on a ring around the tool spindle. Preferably, the lighting means are arranged symmetrically about the tool spindle.
  • the hand tool machine comprises a lithium-based battery, which is provided to supply the drive unit with an electrical energy, whereby a particularly small space and a low weight can be achieved with high performance.
  • a “lithium-based rechargeable battery” is to be understood in particular as meaning a rechargeable battery which stores electrical energy during a charging process by means of a lithium-chemical process
  • the rechargeable battery has an operating voltage between 3 volts and 15 volts .
  • the rechargeable battery particularly preferably has an operating voltage between 3 volts and 7.6 volts
  • the battery has a storage capacity between 2 and 25 Wh, more preferably between 4 and 10 Wh.
  • the drive unit is gearless connected to the tool spindle, whereby particularly low unit costs and low wear are possible.
  • the term "gearless connected” is understood to mean that a rotor of the drive unit and the tool spindle rotate during operation at the same speed.
  • the handheld power tool has a hose coupling which connects the drive unit to the tool spindle, thereby structurally compensating for manufacturing tolerances and reducing the electrical load. romotor can be protected.
  • a "hose coupling” is to be understood in particular as meaning a tubular, rubber-elastic means which is intended to transmit a force from the drive unit to the tool spindle The drive unit and / or the tool spindle on at least one level by 360 degrees.
  • the hose coupling is provided to release a rotationally fixed connection between the drive unit and the tool spindle when blocking an insert tool, in particular in which a frictional connection slips.
  • FIG. 1 shows a hand tool according to the invention in a perspective view
  • FIG. 3 is a block diagram of a portion of the power tool of FIG. 1;
  • FIG. 6 shows a part of a lighting unit of the hand tool of FIG.
  • Fig. 7 shows an alternative embodiment of the hand tool of Figure 1 and a system with a hand tool charger and the hand tool of Figure 7.
  • Figure 1 and Figure 2 show a hand tool 10a according to the invention with a tool spindle 12a, a drive unit 14a, a tool chuck 16a, a battery 18a and a hand tool housing 20a.
  • the drive unit 14a rotatably drives the tool spindle 12a during workpiece machining.
  • the drive unit 14a is gearless connected to the tool spindle 12a. In an operating state, the drive unit 14a drives the tool spindle 12a at a speed greater than 10 000 min "1 in. In this embodiment, the rotational speed by an operator between 10 000 min is" 1 and 40 000 min "1 adjustable.
  • the hand tool 10a The hand tool 10a has two bearings 24a which, in an operative condition, support the tool spindle 12a in the hand tool housing 20a
  • the power tool 10a has a spindle lock (not shown in detail) which, in at least one operating state, rotatably secures the tool spindle relative to the hand tool housing 20a g has a push button, which engages in a not-shown recess of the tool spindle 12a.
  • the tool chuck 16a By blocking the tool spindle 12a, the operator can open the tool chuck 16a for a tool change by a rotational movement.
  • the tool chuck 16a fastens the insert tool 26a in an operative state.
  • the insert tool 26a is designed here as an engraving knife.
  • the tool chuck 16a could fix a mill, a grinding wheel, a grindstone, a polishing tip, a polishing wheel, a polishing brush, a cutting wheel, a saw blade with a diameter smaller than 50 mm and / or a drill with a diameter smaller than 5 mm for workpiece machining
  • the battery 18a is based on a lithium-chemical energy storage.
  • the battery 18a has a storage capacity of 6 Wh. It provides a voltage of 7.2 volts in a ready state.
  • the battery 18a supplies the drive unit 14a with an electrical energy during operation.
  • the battery 18a has two battery cells 28a.
  • the battery cells 28a are connected in series.
  • the drive unit 14a is designed as an electrically commutated drive unit 14a.
  • the drive unit 14a has a brushless electric motor 30a and a motor driver 32a.
  • the rotor of the electric motor 30a is formed on the inside.
  • the motor driver 32a energizes the electric motor 30a by means of an AC voltage during operation.
  • the motor driver 32a has an electronic commutator 36a shown in FIG.
  • the commutator 36a has at least one transistor, not shown.
  • the commutator 36a converts a DC voltage into an AC voltage for energy transfer to a rotor 38a of the electric motor 30a shown in FIG.
  • a frequency of the alternating voltages corresponds in at least one operating state to a rotational speed of the rotor 38a.
  • the commutator 36a has a sensor 40a, which measures an orientation and / or a rotational speed of the rotor 38a.
  • the sensor 40a measures a rotational speed of the rotor 38a via a coil of the electric motor 30a.
  • a commutator and / or an electric motor could also have another, for the expert appear useful sensor for determining the speed.
  • the handheld power tool 10a comprises a computing unit 34a.
  • the arithmetic unit 34a is designed as a microcontroller.
  • the arithmetic unit 34a regulates the AC voltage with which the motor driver 32a supplies the electric motor 30a via the motor driver 32a.
  • a computing unit could control a DC voltage.
  • Tool spindle 12a output rotational power is dependent on the AC voltage of the motor driver 32a.
  • the electric motor 30a assumes a maximum power between 15 watts and 150 watts for driving the tool spindle 12a, in this embodiment a maximum of 40 watts.
  • the motor driver 32a and the arithmetic unit 34a are formed separately.
  • a motor driver and a computing unit could be used on one be arranged common circuit board.
  • the arithmetic unit 34a brings the rotor 38a of the electric motor 30a into a provided starting position. When starting up, the arithmetic unit 34a accelerates the rotor 38a in accordance with an intended acceleration function. Here, the arithmetic unit 34a linearly accelerates the rotor 38a.
  • the drive unit 14a has a sensor 42a which measures an orientation angle and / or a rotational speed of the tool spindle 12a.
  • This sensor 42a is partially non-rotatably connected to the tool spindle 12a.
  • the drive unit 14a has a total of two sensors 40a, 42a for measuring a speed.
  • the arithmetic unit 34a controls its speed of the tool spindle by means of the sensor 42.
  • the drive unit 14a drives the tool spindle 12a at a continuously variable speed.
  • the arithmetic unit 34a compares a characteristic of a rotational speed of the tool spindle 12a with a characteristic of a rotational speed of the rotor 38a of the electric motor 30a.
  • a computing unit could link a parameter of a rotational speed of the tool spindle 12a with a parameter of a power consumption of the electric motor 30a.
  • the arithmetic unit 34a detects whether the hose coupling 22a slips. In this case, the arithmetic unit 34a brakes the rotor 38a of the electric motor 30a via the motor driver 32a. In addition, the arithmetic unit 34a brakes the rotor 38a when an operator decreases a target speed. In addition, the calculation unit 34a brakes the rotor 38a when an operator sets the target speed to zero.
  • the arithmetic unit 34a switches off the electric motor 30a when it detects a load jump on the tool spindle 12a which exceeds a limit value. Such a load jump occurs in particular when tilting the insert tool 26a.
  • a computing unit 34a could brake the rotor 38a of the electric motor 30a in this case.
  • the hand tool housing 20a of the hand tool 10a surrounds the electric motor 30a without venting.
  • the hand tool housing 20a carries a waste heat of the electric motor 30a by heat conduction to a surface of the hand tool housing 20a.
  • the hand tool housing 20a has a sealant not shown in detail. The sealant prevents penetration of liquid, humidity, air, dust and dirt into an interior 44a of the hand tool housing 20a.
  • the hand tool housing 20a has four housing elements 46a, 48a, 50a, 52a. A first and a second of the housing elements 46a, 48a are formed as half-shells.
  • the first and second housing elements 46a, 48a extend parallel to a rotation axis 54a of the tool spindle 12a along the battery 18a, the drive unit 14a and the tool spindle 12a.
  • the first and second housing members 46a, 48a are interconnected along a plane that is parallel to a rotational axis 54a of the tool spindle 12a.
  • the first and second housing members 46a, 48a are laser welded together.
  • the third housing element 50a bounds the inner space 44a of the hand tool housing 20a on a side facing away from the tool chuck 16a.
  • the fourth housing element 52a bounds the interior 44a of the hand tool housing 20a on a side facing the tool chuck 16a.
  • the third and the fourth housing element 50a, 52a partially enclose the first and the second housing element 46a, 48a in each case on a respective plane which is oriented perpendicular to the axis of rotation 54a.
  • the third and the fourth housing element 50a, 52a are thus formed as a lid.
  • the third and fourth case members 50a, 52a are laser welded to the first and second case members 46a, 48a.
  • FIG. 4 shows the handheld power tool 10a in a plan view.
  • FIG. 5 shows the hand tool 10a in a side view.
  • the hand tool housing 20a has a plane of symmetry 56a which runs parallel to the axis of rotation 54a of the tool spindle 12a.
  • the hand tool housing 20a comprises a battery area 58a, a grip area 60a and a lighting unit area 62a.
  • the hand tool housing 10a has an oval cross-section perpendicular to the axis of rotation 54a.
  • the hand tool housing 10a includes a top 64a and a bottom 66a.
  • An operating unit 68a of the handheld power tool 10a is arranged on the upper side 64a.
  • the hand tool housing 10a has an overall length 70a parallel to a rotation axis 54a smaller than 250 mm. Here the total length is 180 mm.
  • the hand tool 10a has a total weight that is less than 150 g. Here the total weight is 128 g.
  • a center of gravity 72a of the handheld power tool 10a is spaced less than 40 mm in the axial direction from the operating unit 68a of the handheld power tool 10a.
  • the focus 72a of the power tool 10a spaced in an axial direction away from the tool chuck 16a direction 30 mm from the operating unit 68a.
  • the battery area 58a has a diameter of less than 35 mm on a battery level.
  • the battery level intersects the battery 18a and is oriented perpendicular to the axis of rotation 54a.
  • the battery area 58a on the battery level parallel to the plane of symmetry 56a has a diameter 74a of about 29 mm.
  • the upper side 64a has on the battery level and parallel to the plane of symmetry 56a a distance 76a of 13 mm from the axis of rotation 54a.
  • the underside 66a has on the battery level and parallel to the plane of symmetry 56a a distance 78a of 16 mm from the axis of rotation 54a.
  • the battery area 58a Perpendicular to the plane of symmetry 56a, the battery area 58a has a diameter 80a of 26 mm.
  • the grip portion 60a has on an outer side a rubber-elastic, slip-resistant handle material.
  • the grip portion 60a extends on an average parallel to the rotation axis 54a of the tool spindle 12a.
  • the grip portion 60a includes a taper portion 82a, a grip stopper portion 84a, and a necking maximum 86a.
  • the necking maximum 86a is disposed between the tapering portion 82a and the handle stopper portion 84a.
  • the constriction maximum 86a is disposed on a plane perpendicular to the axis of rotation 54a.
  • the grip region has a minimum diameter 90a.
  • the diameter 88a at the necking maximum 86a parallel to the plane of symmetry 56a is 16.1 mm.
  • a diameter 90a at the constriction maximum 86a perpendicular to the plane of symmetry 56a is 15.6 mm.
  • the constriction maximum 86a is arranged less than 22 mm away from a workpiece side 92a of the hand tool housing 20a.
  • the necking maximum is located 19 mm from the workpiece side 92a.
  • a part of the grip portion 60a is spaced less than 10 mm from the workpiece side 92a.
  • the tapering portion 82a is disposed between the necking maximum 86a and the battery portion 58a. It has an extension 94a parallel to the axis of rotation 54a of 50 mm. On the underside 66a, it tapers at an angle 96a of 10 degrees relative to the battery area 58a. Relative to Symmetry plane 56a tapers the tapering portion 82a with an angle 98a of about 6 degrees.
  • the gripping abutment region 84a is arranged on a side of the constriction maximum 86a facing the tool chuck 16a. It has an extension 100a parallel to the axis of rotation 54a of 11 mm. It widens from the constriction maximum 86a in the direction of the tool chuck 16a.
  • the handle stopper portion 84a has a maximum diameter 104a that is less than 1.2 times the diameter 88a, 90a of the necking maximum 86a.
  • the handle stopper portion has the maximum diameter 104a, about 1.15 times as large as a diameter 88a, 90a of the necking maximum 86a.
  • the lighting unit portion 62a is disposed between the grip stopper portion 84a and the tool chuck 16a.
  • the light unit region 62a is substantially cylindrical.
  • the light unit region 62a has a diameter 104a of 18.5 mm radially to the rotation axis 54a.
  • the diameter 104a of the light unit portion 62a corresponds to the maximum diameter 104a of the grip stopper portion 84a.
  • the light unit region 62a delimits the inner space 44a of the hand tool housing 20a in the direction of the tool chuck 16a.
  • the light unit region 62a of the hand tool housing 10a encloses on at least one plane perpendicular to the rotation axis 54a a light unit 106a of the handheld power tool 10a.
  • the lighting unit 106a illuminates in at least one operating state, not shown in detail, a work area of the workpiece.
  • the lighting unit 106a comprises an optical element 108a, which is partially formed integrally with the hand tool housing 20a.
  • the optical element 108a is integrally formed with the fourth case member 52a, which defines the inner space 44a of the hand tool housing 20a on a tool chuck
  • the optical element 108a is provided to secure the first and second housing members 46a, 48a.
  • the fourth case member 52a forms part of the light unit portion 62a.
  • the optical element 108a has lenses, which are not shown in more detail, which focus a luminous flux emitted by light sources 1 10a, 12a of the lighting unit 106a.
  • the optical element 108a has a not shown Diffuser on which scatters the light flux during operation, whereby a shadow of the insert tool 26 has a soft transitions.
  • the optical element 108a could only have lenses and / or lenses could be integrally formed with a diffuser.
  • the lighting unit 106a has the eight lighting means 1 10a, 12a.
  • the lighting unit 106a has a light source carrier 14a.
  • the light source carrier 14a fixes the light sources 110a, 112a on an axial plane of the tool spindle 54a with respect to the tool spindle 54a at an angle 16a of 45 degrees to one another. They are arranged uniformly distributed about the rotation axis 54a.
  • the illuminant carrier 14a is designed as a printed circuit board. It has an annular shape.
  • the light source carrier 14a encloses the tool spindle 12a on at least one level by 360 degrees.
  • the lighting unit 106a has a delay unit (not shown here) which, after the drive unit 14a has been switched off, delays switching off of the lighting means 10a, 12a by a predetermined time.
  • the time is adjustable by an operator.
  • the delay unit is designed as a computing routine of the arithmetic unit 34a. The delay unit starts the
  • Illuminant 1 10a, 1 12a for example, two seconds after switching off the drive unit 14a to dim. Within two seconds, the delay unit dimmers the bulbs 10a, 12a until they no longer emit light.
  • the lamps 1 10a, 12a are partially formed as white illuminating lamps 1 10a.
  • the lighting means 1 10a, 12a are partially formed as a color illuminating lamp 1 12a.
  • the white luminous lamps 1 10a are designed as white light emitting diodes.
  • the colored luminous means 1 12a are formed as RGB light-emitting diodes. That is, they are intended to emit red, green and blue light.
  • the lighting unit 106a has six white illuminating lamps 1 10a and two illuminating lamps 12 12a that illuminate in color.
  • the colored luminous lamps are intended to emit light of different colors with variable color components.
  • the hand tool 10a has a display unit 1 18a.
  • the colored luminous means 1 12a are part of the display unit 1 18a.
  • the display unit 1 18a is partially formed integrally with the lighting unit 106a.
  • the color-illuminated bulbs 12a radiate the working area in a color dependent on one parameter in each case.
  • Display unit 1 18a provided to output two different parameters.
  • the arithmetic unit 34a controls the output of the characteristics. The operator can choose which parameter should be output. In this case, it is also possible to output a single parameter from both color-illuminating lamps 1 12a simultaneously.
  • Selectable parameters are those skilled in the useful appearing parameters, but in particular a temperature of the drive unit 14a and / or the battery 18a, a speed of the tool spindle 12a, a charge state of the battery 18a, a contact pressure of the insert tool on the workpiece, a power consumption of the drive unit 14a and / or a temperature or charge state warning when exceeding a
  • the hand tool 10a has a display not shown in detail, here an OLED display, which indicates to the operator a kind of output characteristic.
  • the hand tool 10a has a temperature sensor 19a, which measures a temperature of the electric motor 30a during operation.
  • the hand tool 10a has a further display unit 120a, which is arranged on an end of the tool housing 20a facing away from the tool chuck 16a.
  • the further display unit 120a has four green illuminating lamps 122a and four red illuminating lamps 124a. Two differently colored illuminating lamps 122a, 124a each shine through a recess 126a of the hand tool housing 10a.
  • a handheld power tool 10a could also have only one of the two display units 1 18a, 120a.
  • the hand tool 10a has the operating unit 68a with two operating elements 128a, 130a.
  • the hand tool housing 20a fastens the operating elements 128a, 130a.
  • the first of the operating elements 128a is designed as a capacitive pushbutton. During operation, the operator stops and starts the drive of the tool spindle 12a by means of the first operating element 128a.
  • the first operating element 128a is less than 30 mm from the necking maximum spaced 86a of the handle portion 60a, namely 24 mm.
  • the first operating element 128a is arranged on the plane of symmetry 56a.
  • the second of the controls 130a comprises two capacitive buttons. The two buttons have a distance 132a of 8 mm from each other and are arranged symmetrically to the plane of symmetry 56a.
  • the operator can select a speed of the tool spindle 12a by means of the second operating element 130a.
  • the second operating element 130a is provided to output a parameter for controlling a rotational speed of the tool spindle 12a.
  • the operator can select a display unit 1 18a, 120a output characteristic.
  • the second operating element 130a is arranged at a distance of less than 80 mm from the constriction maximum 86a of the gripping region 60a, namely 50 mm.
  • the buttons have only an unactuated stable state, that is, they do not lock in a depressed state.
  • the operation unit 68a detects a powerless touch of an operator. Alternatively or additionally, the operating unit 68a could have partially movable buttons, in particular with a mechanically closing contact.
  • the hand tool 10a has a charging energy input 134a. Of the
  • Charging energy input 134a is formed as a USB interface.
  • the charging energy input 134a is arranged on a side of the hand tool housing 20a facing away from the tool chuck 16a.
  • the charging energy input 134a is provided to transfer data.
  • the arithmetic unit 34a is connected to the computer via the charging energy input by means of a computer (not shown)
  • the operator can configure a speed range which can be set using the operating elements 130a, configure a characteristic variable represented by the color-emitting light-emitting means 124a and make other settings that appear appropriate to the person skilled in the art.
  • the operator can transmit to the computer via the charging energy input 134a, the operating data which appears expedient to the person skilled in the art, such as operating hours and / or working processes of the handheld power tool 10a, from the handheld power tool 10a.
  • the hand tool 10a has a pressure sensor, not shown in detail, the pressure of the insert tool 26a during operation the workpiece is detected.
  • the pressure sensor is arranged on one of the bearings 24a of the tool spindle 12a.
  • the display unit 1 18a indicates in an operating condition a pressure exerted by the insert tool 26a on the workpiece pressure. As a result, a particularly accurate workpiece machining is possible.
  • the hand tool 10a has a proximity sensor 136a, which detects an approach of the insert tool 26a to the workpiece.
  • the proximity sensor 136a is formed as an optical sensor.
  • an approach sensor could be designed as a capacitive sensor that detects a capacity of the insertion tool 26a.
  • the arithmetic unit 34a independently starts a drive of the tool spindle 12a. This makes a particularly comfortable working with frequent settling, in particular for controlling a processing result, possible.
  • the handheld power tool could have a motion sensor that detects a speed of movement of the handheld power tool 10a relative to the workpiece.
  • a display unit could output the speed.
  • the handheld power tool could have an acceleration sensor, a gyroscope and / or a position sensor.
  • a computing unit could be provided for this purpose by means of these sensors
  • FIGS. 7 and 8 show two further exemplary embodiments of the invention.
  • the following descriptions and the drawings are essentially limited to the differences between the exemplary embodiments, wherein, with regard to identically named components, in particular with regard to components having the same reference numbers, in principle also the drawings and / or the description, the other exemplary embodiment of FIGS to 6, can be referenced.
  • To distinguish the embodiments of the letter a is the reference numerals of the embodiment in the figures 1 to 6 adjusted.
  • the letter a is replaced by the letter b.
  • FIG. 7 shows a handheld power tool 10b with a tool spindle 12b and a drive unit 14b.
  • the driving unit 14b drives in an operating state, the tool spindle 12b at a speed greater than 10 000 min "1.
  • the hand power tool 10b includes an operation unit 68b, a force-free contact recognized by an operator at an operator.
  • the control unit 68b detects already an approach of an
  • the operator control unit 68b has an operating element 130b with two capacitive sensors 138b and an electrically conductive operating surface 140b
  • the operating surface 140b is strip-shaped and has an aspect ratio greater than one in five
  • the control unit 68b is provided to detect more than three different operating states.
  • a computing unit 34b of the handheld power tool 10b adjusts a target rotational speed of the tool spindle 12b when the operator shifts a touch location on the operation surface 140b.
  • the arithmetic unit 34b starts or stops driving the tool spindle 12b when the operator taps the operation surface 140b.
  • the operating unit 68b has a display unit 142b which, during operation, represents a selected parameter of an operating state.
  • the display unit 142b illuminates the operation surface 140b.
  • FIG. 8 shows a system 144b with a hand tool loader 146b and the handheld power tool 10b.
  • the handheld power tool 10b has a charging energy input 134b with two charging contacts 148b.
  • the charging energy input 134b is arranged on a side of the hand tool housing 20b facing the tool chuck 16b.
  • the power tool charger 146b contacts the charging contacts 148b.
  • the hand tool charger 146b not shown spring-loaded contacts.
  • the hand tool loader 146b transmits when the hand tool 10b is being charged via the charging contacts
  • the hand tool loader 146b encloses the hand tool 10b when loading on a plane by more than 180 degrees.
  • the hand tool loader 146b encloses the hand tool 10b on the 360 degree level.
  • the hand tool loader 146b encloses the hand tool housing 20b of the handheld power tool 10b on a side facing the tool chuck 16b.

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

Abstract

La présente invention concerne une machine-outil portative comprenant au moins une broche porte-outil (12a; 12b) et une unité d'entraînement (14a; 14b) qui est conçue pour entraîner la broche porte-outil (12a; 12b) à un régime supérieur à 10 000 min-1, ainsi qu'au moins une unité d'affichage (118a, 120a; 142b) qui est conçue pour afficher au moins une grandeur caractéristique à l'utilisateur. Selon l'invention, la machine-outil portative comprend un moyen d'éclairage (106a) qui est conçu pour éclairer une zone de travail et qui forme au moins partiellement une seule pièce avec l'unité d'affichage (118a).
PCT/EP2012/057770 2011-06-14 2012-04-27 Machine-outil portative Ceased WO2012171705A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE201110077451 DE102011077451A1 (de) 2011-06-14 2011-06-14 Handwerkzeugmaschine
DE102011077451.3 2011-06-14

Publications (1)

Publication Number Publication Date
WO2012171705A1 true WO2012171705A1 (fr) 2012-12-20

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WO (1) WO2012171705A1 (fr)

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US8328381B2 (en) 2009-02-25 2012-12-11 Black & Decker Inc. Light for a power tool and method of illuminating a workpiece
US20110058356A1 (en) 2009-02-25 2011-03-10 Black & Decker Inc. Power tool with light emitting assembly
US8317350B2 (en) 2009-02-25 2012-11-27 Black & Decker Inc. Power tool with a light for illuminating a workpiece
US12059780B2 (en) 2010-09-30 2024-08-13 Black & Decker Inc. Lighted power tool
US9028088B2 (en) 2010-09-30 2015-05-12 Black & Decker Inc. Lighted power tool
US9328915B2 (en) 2010-09-30 2016-05-03 Black & Decker Inc. Lighted power tool
US9242355B2 (en) 2012-04-17 2016-01-26 Black & Decker Inc. Illuminated power tool
DE102016209049A1 (de) * 2016-05-24 2017-11-30 Robert Bosch Gmbh Handwerkzeugmaschinenvorrichtung
DE102022202409A1 (de) 2022-03-10 2023-09-14 Robert Bosch Gesellschaft mit beschränkter Haftung Handwerkzeugmaschine mit einer Arbeitsfeldbeleuchtung

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EP0829237A2 (fr) * 1996-09-12 1998-03-18 Ricana Ag Appareil de coupe avec outil de coupe sur un essieu moteur oscillant
DE202004002422U1 (de) * 2003-12-18 2004-07-15 Mobiletron Electronics Co., Ltd., Ta-Ya Elektrowerkzeug
US20080074865A1 (en) * 2006-09-25 2008-03-27 Manfred Lutz Hand-held power tool
DE102008003484A1 (de) * 2008-01-08 2009-07-09 Marquardt Gmbh Elektrowerkzeug
DE102008010136A1 (de) * 2008-02-20 2009-08-27 Aeg Electric Tools Gmbh Elektromaschine
DE102008042652A1 (de) * 2008-10-07 2010-04-08 Robert Bosch Gmbh Elektrowerkzeug und Verfahren zum Betreiben eines Elektrowerkzeugs
US20100206429A1 (en) * 2009-02-13 2010-08-19 Credo Technology Corporation Modular Router With Base Sensor

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0829237A2 (fr) * 1996-09-12 1998-03-18 Ricana Ag Appareil de coupe avec outil de coupe sur un essieu moteur oscillant
DE202004002422U1 (de) * 2003-12-18 2004-07-15 Mobiletron Electronics Co., Ltd., Ta-Ya Elektrowerkzeug
US20080074865A1 (en) * 2006-09-25 2008-03-27 Manfred Lutz Hand-held power tool
DE102008003484A1 (de) * 2008-01-08 2009-07-09 Marquardt Gmbh Elektrowerkzeug
DE102008010136A1 (de) * 2008-02-20 2009-08-27 Aeg Electric Tools Gmbh Elektromaschine
DE102008042652A1 (de) * 2008-10-07 2010-04-08 Robert Bosch Gmbh Elektrowerkzeug und Verfahren zum Betreiben eines Elektrowerkzeugs
US20100206429A1 (en) * 2009-02-13 2010-08-19 Credo Technology Corporation Modular Router With Base Sensor

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