Power Tools and Methods

Abstract

The invention relates to an electric power tool 20, in particular a sawing device, which comprises a tool 8, in particular a saw blade, for processing a workpiece 9, said electric power tool 20 comprising an operating device 2 via which a parameter value for at least one parameter for the operation of the tool 8, such as for example a cutting depth and / or a cutting angle, said operating device 2 comprising a setting element 3 configured as a rotary-pressure actuator for inputting the parameter value and at least one display unit 4 for displaying the parameter value.

Description

[Technical field]

[0001] The present invention relates to a power tool, in particular a sawing device, The power tool comprises a tool for processing a workpiece, in particular a saw blade, The power tool includes an operating device, Via this operating device, a parameter value for at least one parameter for the operation of the tool, for example a cutting depth and / or a cutting angle, can be input. [Background technology]

[0002] US Pat. No. 5,399,433 describes a rotary torque wrench, which is adapted to connect with a display device that is to be detached.

[0003] US Patent No. 5,399,633 describes a bevel saw having digital displays for bevel angle and tilt angle.

[0004] D3 describes an input means comprising a series of push buttons, which are arranged on a panel of the operating unit. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] European Patent Application Publication No. 3484662A1 [Patent Document 2] German Patent Application Publication No. 102005031025B4 [Patent Document 3] European Patent No. 755744B1 Summary of the Invention [Problem to be solved by the invention]

[0006] SUMMARY OF THE DISCLOSURE It is therefore an object of the present invention to improve the operability of a power tool. [Means for solving the problem]

[0007] This problem is solved by a power tool according to claim 1. The operating device of the power tool comprises a setting element configured as a rotary-pressure actuator for input of a parameter value and a display unit for displaying said parameter value. Effect of the Invention

[0008] By means of the setting element, the parameter values ​​can be entered very easily. Based on the parameter values ​​displayed on the display unit, the user can check whether the parameter values ​​have been entered correctly.

[0009] Advantageous further configurations are the subject of the dependent claims.

[0010] The invention further relates to a method for operating a power tool, the method comprising a step of inputting parameter values ​​via a setting element.

[0011] Further exemplary details as well as exemplary embodiments are described below in conjunction with the figures. [Brief description of the drawings]

[0012] [Figure 1] FIG. 1 is a schematic diagram of an electrical device. [Diagram 2] FIG. [Diagram 3] FIG. 1 is a schematic diagram of a power tool. [Figure 4] FIG. 11 is a schematic diagram of an operating device according to a first modified example. [Diagram 5] FIG. 11 is a schematic diagram of an operating device according to a second modified example. [Figure 6] FIG. 2 is a schematic diagram of a stack storage device. [Figure 7] FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0013] In the following description, reference should be made to the mutually orthogonally oriented directions x, y and z drawn in the figures, the x and y directions being horizontal directions and the z direction being vertical.

[0014] 1 shows an electric machine 10, which is in particular configured as a power tool, for example as a sawing device. The electric machine 10 comprises a functional unit 1, which is in the form of, for example, a tool, in particular a saw blade.

[0015] The electric appliance 10 comprises an operating device 2, via which parameter values ​​of at least one parameter associated with the operation of the functional unit 1, in particular the tool, can be inputted, the at least one parameter comprising, for example, a cutting depth (in particular as a first parameter) and / or a cutting angle (in particular as a second parameter). The operating device 2 may also be referred to as a man-machine interface.

[0016] The operating device 2 comprises a setting element 3, which is preferably designed as a rotary-pressure actuator. The setting element 3 is used for inputting parameter values. Advantageously, via the setting element 3 at least two parameter values ​​of at least two different parameters which are relevant for the operation of the functional unit 1 can be input.

[0017] The rotary-pressure actuator is in particular designed as a rotary-pressure wheel, and is expediently designed cylindrically, and is supported so as to be rotatable about a rotation axis. Expediently, the parameter value to be input by means of the rotary-pressure actuator, in particular one or more digits of the parameter value, can be increased in a first rotational direction by rotation of the rotary-pressure actuator about the rotation axis. Expediently, the parameter value to be input by the rotary-pressure actuator, in particular one or more digits of the parameter value, can be reduced by rotation of the rotary-pressure actuator about the rotation axis in a second rotation direction, which is opposite to the first rotation direction. The electric device 10 expediently comprises an incremental generator, which converts the rotary movement of the rotary-pressure actuator into an electrical signal, which is provided, for example, as an electrical actuation signal. For example, to select one or more digits of the parameter value to be entered, the rotary-pressure actuator can be pressed, in particular in the axial direction of the rotation axis.

[0018] The operating device 2 further comprises a display unit 4 for the display of at least one parameter value. The display unit 4 is in particular a graphic display, expediently a pixel display. The display unit 4 is, for example, an LED or OLED display. Exemplarily, the display unit 4 has a resolution of more than 100x100 pixels, advantageously at least 240x240 pixels.

[0019] Advantageously, the operating device 2 further comprises an array of selection elements 5 for the selection of a parameter as the current input parameter. As current input parameter shall be referred to the input parameter whose parameter value can currently be entered, in particular can be changed, by means of the setting element 3. In particular, via the selection element array 5, one parameter can be selected as the current input parameter from a number of possible parameters.

[0020] Advantageously, the selection element array 5 comprises selection elements 6, 7, 38. Expediently, each selection element of the selection elements 6, 7, 38 is assigned to a respective parameter in order to select the respective parameter as the current input parameter. Advantageously, each of the selection elements 6, 7, 38 is assigned to a display area of ​​the display unit 4 which is utilized for the display of a respective, in particular respectively assigned, parameter.

[0021] By way of example, the selection element array 5 comprises a first selection element 6, in particular configured as a first push button, by means of which a first parameter, e.g. cutting depth, can be selected as the current input parameter. Operation of the first selection element 6 selects the first parameter as the current input parameter, and therefore the parameter value of the first parameter (and in particular not the parameter value of the second parameter) can be input via the setting element 3.

[0022] Advantageously, the selection element array 5 comprises a second selection element 7, in particular configured as a second push button, by means of which a second parameter, for example the cutting angle, can be selected as the current input parameter. Operation of the second selection element 7 selects the second parameter as the current input parameter, and therefore the parameter value of the second parameter (and in particular not the parameter value of the first parameter) can be input via the setting element 3.

[0023] By way of example, the second selection element 7 is arranged below the first selection element 6, in particular such that the first selection element 6 and the second selection element 7 are aligned in the y direction and / or spaced apart from each other in the z direction. Expediently, the first selection element 6 and the second selection element 7 occupy the same area in the y direction. The selection element array 5, in particular the first selection element 6 and / or the second selection element 7, is expediently arranged beside the display unit 4 in the (in particular negative) y direction.

[0024] As already explained above, the electric machine 10 is advantageously configured as a saw device, an exemplary embodiment of a corresponding saw device being explained in more detail below in connection with FIG.

[0025] First of all, other exemplary embodiments of the electric device 10 should be described:

[0026] It is possible for the electrical appliance 10 to be configured, for example, as a suction device and for the functional unit 1 to be configured as a suction unit, the at least one parameter in this case in particular comprising the suction performance of the suction unit.

[0027] It is also possible that the electrical machine 10 is configured as a surface milling machine or a dowel milling machine and the functional unit 1 is configured as a milling machine. For example, the at least one parameter in this case comprises (e.g. as a first parameter) the rotation speed of the milling machine and / or (e.g. as a second parameter) the milling depth of the milling machine. In other examples, the at least one parameter comprises a first parameter of the milling program (eg, as the first parameter) and / or a second parameter of the milling program (eg, as the second parameter).

[0028] It is also possible that the electrical device 10 is configured as a light emitting emitter and the functional unit is configured as a light emitting means, e.g. an LED unit, for example, the at least one parameter in this case comprises the color temperature of the light emitting means (e.g. as a first parameter) and / or the brightness of the light emitting means (e.g. as a second parameter).

[0029] It is possible that the electrical device 10 is further configured as an audio output device, for example a radio, and the functional unit is configured as a control unit for controlling the audio output. For example, the at least one parameter in this case comprises (e.g., as a first parameter) the volume of the audio output device and / or (e.g., as a second parameter) a station identifier assigned to a receivable station and / or a playlist identifier assigned to a playable playlist.

[0030] 2 shows a power tool 20, which is exemplarily configured as a sawing device, in particular a table circular saw. The power tool 20 is an exemplary embodiment of the electric machine 10, so that the embodiments relating to the electric machine 10 apply analogously to the power tool 20. In particular, the above explanations regarding the operating device 2 apply analogously to the operating device 2 of the power tool 20.

[0031] The power tool 20 is advantageously configured as a semi-stationary machine, which is a machine that is stationary for the processing of the workpiece 9 and can be carried by an individual person.

[0032] The power tool 20 exemplarily comprises a working unit 12 configured as a saw unit. Exemplarily, this saw unit itself specifically embodies a table circular saw. Optionally, the power tool 20 further comprises a cover hood 14 which can be placed on the processing unit 12 and which can advantageously be secured thereto. Advantageously, the power tool 20 can be selectively moved into a working configuration and into a transport configuration. In the working configuration, the cover hood 14 is removed from the processing unit 12 so that the workpiece 9 can be processed appropriately by the tools 8 of the processing unit 12. In the transport configuration, the cover hood 14 is placed on the processing unit 12 and appropriately covers the tools 8 and / or the workpiece placement surface 18 of the processing unit 12.

[0033] The power tool 20, in particular the processing unit 12, comprises a tool 8, which is in particular configured as a saw blade. The tool 8 is an example of one of the above-mentioned functional units 1. The tool 8 is used for processing a workpiece 9. The saw blade is, by way of example, aligned normal to the y-direction with its saw blade plane. The cutting direction of the saw blade, by way of example, runs parallel to the x-direction.

[0034] The power tool 20, in particular the processing unit 12, comprises a support structure 11, which has, by way of example, a basic form in the shape of a rectangular parallelepiped. In order to occupy a defined working position, in particular in which the workpiece 9 can be processed by the tool 8, the power tool 20, in particular the processing unit 12, can be placed on a base by means of an underside of the support structure 11 (which is in particular oriented normal to the negative z-direction). The support structure 11 by way of example embodies an outer housing of the processing unit 12.

[0035] The power tool 20 has a workpiece placement surface 18, on which the workpiece 9 can be placed in order to process it with the tool 8. In the working position, the workpiece placement surface 18 is expediently aligned normal to the positive z-direction. By way of example, the workpiece placement surface 18 is formed by the upper side of the support structure 11. By way of example, the tool 8 can project upwards from the support structure 11 through an opening provided in the workpiece placement surface 18 and / or downwards (in the negative z-direction) into this support structure.

[0036] The power tool 20 comprises an operating device 2, which is in particular configured as already described above. The operating device 2 is expediently arranged on the support structure 11, in particular on a first peripheral side 21 of the support structure 11. The operating device 2 is in particular arranged on the outside of the support structure 11. The first peripheral side surface 21 extends upward from a lower side surface of the support structure 11 to an upper side surface of the support structure 11. The first peripheral side surface 21 exemplarily extends parallel to the y direction. This first peripheral side 21 is in particular the side from which the workpiece 9 can be forced against the tool 8 in a feed direction extending parallel to the positive x-direction, in order to process the workpiece 9 by means of the tool 8. The operating device 2 is arranged in particular in a part of the support structure or surrounding side that is arranged in front of the tool 8 in the feed direction, in particular so that the tool 8 is located inside the y-directional extension of the operating device 2 in the y-direction, as shown in FIG. 7.

[0037] Expediently, the cover hood 14 covers the operating device 2 in particular completely in the transport configuration, so that the operating device 2 is not operable in the transport configuration. Expediently, the cover hood 14 does not cover the operating device 2 in the working configuration.

[0038] FIG. 3 shows a schematic diagram of the power tool 20 and in particular the working unit 12 .

[0039] The power tool 20 comprises a control unit 15, which is in particular arranged in the support structure 11. The control unit 15 comprises, for example, a microcontroller. The control unit 15 is communicatively connected to the operating device 2. Expediently, the control unit 15 receives at least one electrical operating signal from the operating device 2. The at least one electrical operating signal is expediently mapped to an operation of the operating device 2, in particular to an operation of the setting element 3 and / or the array of selection elements 5. The control unit 15 is expediently connected in communication with the display unit 4. Expediently, the control unit 15 outputs at least one electrical display signal to the display unit 4, in particular taking into account a user input implemented by the operating device 2, in particular taking into account at least one electrical operating signal.

[0040] Expediently, the power tool 20, in particular the processing unit 12, comprises a tool drive unit 16, which is used to effect a processing movement of the tool 8, by means of which the workpiece 9 can be processed. Expediently, the tool drive unit 16 comprises an electric drive motor for driving the tool 8. The machining movement is, by way of example, a rotational movement of a saw blade, in particular about an axis of rotation that runs parallel to the y direction. Expediently, in order to determine the drive of the tool 8 , the control unit 15 is designed to control the tool drive unit 16 by means of at least one drive signal, in particular on the basis of a user input carried out by the operating device 2 .

[0041] Advantageously, the power tool 20, in particular the processing unit 12, is equipped with a positioning device 17 having at least one electric motor for providing a translation movement of the tool 8. The positioning device 17 is advantageously arranged in the support structure 11.

[0042] The power tool 20 is configured to perform movement movements for the purpose of repositioning the tool 8 and / or for the purpose of calibration movements of this tool 8 .

[0043] The repositioning of the tool 8 is effected expediently relative to the workpiece placement surface 18 and serves to determine the first and / or second parameter, in particular the cutting depth and / or the cutting angle.

[0044] The calibration movement is expediently used for determining one or more reference positions, for example a maximum position, a minimum position and / or a neutral position of the tool 8. For example, the tool 8 is moved to one or more reference positions during the calibration movement. Expediently, the power tool 20 does not have any absolute sensors for detecting the position of the tool 8 and / or is configured to determine the position of this tool 8 incrementally, taking into account one or more reference positions which are detected, in particular during the calibration movement.

[0045] By way of example, the positioning device 17 comprises a first positioning electric motor 31 for setting a first parameter, in particular the height of the tool 8, in order to determine in particular the cutting depth. By means of this first positioning electric motor 31, the tool 8 can be positioned or moved in a targeted manner, in particular in the z-direction relative to the workpiece placement surface 18. In particular, the tool 8 can be subjected to a first, in particular linear, translation movement 41 by means of the first positioning electric motor.

[0046] By way of example, the positioning device 17 comprises a second electric positioning motor 32 for setting a second parameter, for example the angle of the tool 8, in particular for determining the cutting angle. By means of this second positioning electric motor 31, the tool 8 can be swiveled in a suitable manner, in particular around a pivot axis extending in the y direction, or moved in a plane including the z direction perpendicular to the feed direction or x direction, in particular relative to the workpiece placement surface 18. In particular, the tool 8 can be subjected to a second translation movement 42 by means of the second positioning electric motor 32. The second translation movement is advantageously a pivoting movement.

[0047] Exemplarily, by selection of a first parameter, in particular the cutting depth, as the current input parameter and by subsequent rotation of the setting element 3, the parameter value of the first parameter, in particular the cutting depth, can be changed. Advantageously, the power tool 20 is configured to, upon a change in the parameter value caused by the rotation of the setting element 3, position the tool 8 in accordance with this parameter value under the use of a first positioning electric motor 31.

[0048] Exemplarily, by selection of the second parameter, in particular the cutting angle, as the current input parameter and by subsequent rotation of the setting element 3, the parameter value of the second parameter, in particular the cutting angle, can be changed. Advantageously, the power tool 20 is configured to, upon a change in a parameter value caused by a rotation of the setting element 3, position the tool 8 in accordance with this changed parameter value by use of the second positioning electric motor 32.

[0049] Rotation of the setting element 3 expediently causes the parameter values ​​of the current input parameters, displayed on the display unit 4, to be changed and at the same time the tool 8 to be positioned by the positioning device 17 in accordance with the displayed (changed) parameter values.

[0050] Advantageously, the power tool 20 is configured in such a way that it performs the movement movement only while the actuation of the operating device, in particular the setting element, is applied, and in such a way that it stops this movement movement as a response to the actuation of the operating device, in particular the setting element, being no longer applied.

[0051] Advantageously, the power tool 20 is designed to carry out a transfer movement only if the tool 8 is not in a machining movement.

[0052] In particular, the control unit 15 is configured to check, in particular continuously, based on an electrical operating signal, whether the setting element 3 has been operated, for example whether the setting element 3 has been rotated, and is configured to trigger the displacement movement by controlling the positioning device 17 only while the setting element 3 is being operated. Advantageously, the control unit 15 is configured to carry out a continuous check at a scanning rate of at least 20 Hz, advantageously at least 100 Hz. The speed of the direct translation movement is, for example, at least 5 mm / s. In an advantageous embodiment variant, the direct translation movement is, for example, 10 mm / s. The speed of the rotational translation is, for example, 4 degrees / second. In a variant of the advantageous embodiment, the speed of the rotational translation is 6.5 degrees / second.

[0053] Advantageously, the actuation of the actuation device 2 is performed for the purpose of changing a parameter value, for example increasing or decreasing a parameter value. Such a change of a parameter value is one example for inputting a parameter value. The power tool 20 is configured to position the tool 8 by a movement according to the changed parameter value. Advantageously, the power tool 20 is configured to display the changing parameter value on the display unit 4 during the change of the parameter value and during the movement.

[0054] The user can increase or decrease the parameter value displayed on the display unit 4, in particular by rotating the setting element 3, and the power tool 20 moves the tool 8 simultaneously with this increase or decrease, and in particular such that the parameter value displayed on the display unit 4 always depicts the current position of the tool 8.

[0055] For the automatic and / or electronically controlled movement (e.g., a moving motion) of the saw blade of the power tool 20, user input (e.g., rotation of the setting element 3) is therefore expediently required for the duration of the movement.

[0056] In particular, the movement of the saw blade takes place exclusively when an actuation of the setting element 3, preferably a rotation of the setting element 3, takes place. Optionally, the strength of the input (e.g. the rotation speed of the setting element 3) does not have any influence on the movement speed.

[0057] For example, a desired, in particular predefined or previously defined by the user (in particular via the operating device 2), tool position, in particular a saw blade position, e.g. parameter preset 39, a standby position and / or a change position, can be selected and / or a calibration movement can be selected which depends on a first parameter, in particular a cutting angle, and / or on a second parameter, in particular a cutting depth, and which is in particular effected by reaching an end position. The waiting position is a position of the tool, in particular the saw blade, in which the tool, in particular the saw blade, is positioned deep enough so that the cover hood 14 can be placed on the processing unit 12 and fixed in this processing unit. A change position is a position of a tool, in particular a saw blade, in which the tool, in particular a saw blade, can be removed or replaced, in particular by a user.

[0058] The power tool 20 is configured to move only when and while the rotate-press actuator is rotated or pressed for the purpose of reaching a desired tool position, in particular a saw blade position, and / or for performing a calibration movement of the tool, in particular the saw blade. Expediently, this can reduce the risk that a user will incorrectly grip the saw blade during movement in small (portable, mobile or handheld) saw devices. According to an alternative embodiment, in order for the tool, in particular the saw blade, to be moved, instead of an input by a rotary-pressure actuator, an input by another suitable user input element is required.

[0059] Expediently, the power tool 20 is configured to stop the movement of the saw blade and, expediently, to output, in particular display, a (in particular optical) signal, in particular a fault message, in particular via the display unit 4, and / or to prevent driving of the saw blade in response to a user input (e.g. rotation or pressing of the setting element 3) being terminated before the desired saw blade position has been reached and / or the calibration movement has been ended. By means of a further user input (eg by rotating or pressing the setting element 3), the displacement movement can be continued in an expedient manner.

[0060] As mentioned above, the translation movement is in particular performed within the range of the calibration movement. Advantageously, the power tool 20 is configured to interrupt or abort the calibration movement if the rotary-push actuator is no longer rotated further before the end of the moving movement of the saw blade.

[0061] Optionally, the power tool 20 , in particular the processing unit 12 , is equipped with a communication interface 19 for communication with a mobile device 30 . The mobile device 30 is, for example, a mobile phone or a tablet. The communication between the communication interface 19 and the mobile device 30 is advantageously carried out wirelessly, in particular via Bluetooth, WLAN, mobile communication and / or NFC.

[0062] Expediently, the power tool 20, in particular the processing unit 12, is provided with a fan wheel 33, which is used in particular for generating an air flow for cooling the power tool 20. The fan wheel 33 is expediently connected to the tool 8, in particular such that the fan wheel 33, together with the tool 8, is driven by the tool drive unit 16. Advantageously, the power tool 20 is provided with a cooling mode, in which the tool 8 is driven at a reduced rotational speed in order to cause cooling of the power tool 20 via a fan wheel 33 of the power tool 20 connected to the tool 8. The reduced rotational speed is in particular reduced compared to the processing speed used for processing the workpiece 9. The power tool 20 is configured to output, particularly indicate, a warning signal prior to assuming the cooling mode, which warning signal indicates that the power tool 20 will be assuming the cooling mode, and / or to output, particularly indicate, a cooling mode signal throughout the cooling mode, which cooling mode signal indicates that the power tool 20 is in the cooling mode. The warning signal and / or the cooling mode signal are expediently output, in particular displayed, via the display unit 4, in particular as a respective message displayed on the display unit 4.

[0063] In the following, the operating device 2 is explained in more detail. The operating device 2 described below is in particular an operating device 2 of an electric appliance 10 and / or of a power tool 20, in particular a saw device.

[0064] Advantageously, the operating device 2 has a tool drive operating device 34, via which the drive of the tool 8 for moving the tool 8 into the machining movement can be switched on and / or switched off. The drive of the tool 8 is performed by means of a tool drive unit 16. Expediently, the control unit 15 controls the tool drive unit 16 according to a user input carried out via the tool drive operating device 34. The tool drive operating device 34 comprises, for example, a switch-on push button 35 for switching on the drive of the tool 8 and / or a switch-off push button 36 for switching off the drive of the tool 8. The tool drive operating device 34, in particular the switch-on push button 35 and / or the switch-off push button 36, are exemplarily arranged on the first peripheral side 21. Exemplarily, the tool drive operating device 34 is arranged next to the setting element 3, in particular on the right side next to the setting element 3. Exemplarily, the switch-off push button 36 is arranged below the switch-on push button 35.

[0065] Advantageously, the power tool 20, in particular the processing unit 12, further comprises a main on / off switch 37, via which the power tool 20, in particular the operating device 2, can be switched on and / or off. Expediently, the power tool 20, in particular the control unit 15, can be placed in an off state by operating the main on / off switch 37, in which the drive of the tool 8 cannot be switched on via the tool drive operating device 34. The main on / off switch 37 is illustratively located at a distance from the tool drive operating device 34. The main on / off switch 37 is illustratively located on the second peripheral side 22 of the support structure 11. The second peripheral side 22 illustratively extends parallel to the x-direction.

[0066] Advantageously, the display unit 4 is formed to display a first parameter value 51 of a first parameter and a second parameter value 52 of a second parameter. The first parameter value 51 is in particular the current value of the first parameter and the second parameter value 52 is in particular the current value of the second parameter. By way of example, the display unit 4 displays the parameter values ​​51, 52 one above the other. Expediently, the display unit 4 displays these parameter values ​​as numerical elements, in particular via the representation of numbers, for example Arabic numerals.

[0067] Advantageously, the first selection element 6 is arranged in spatial correspondence with the first parameter value 51 and / or the second selection element 7 is arranged in spatial correspondence with the second parameter value 52. Exemplarily, the first selection element 6 occupies a first z-region and a first parameter value 51 is located within this first z-region. Exemplarily, the second selection element 7 occupies a second z-region different from the first z-region and a second parameter value 52 is located within this second z-region. Expediently, the first z region, the first selection element 6 and / or the first parameter value 51 are arranged exclusively above an imaginary straight line extending in the y direction, and / or the second z region, the second selection element 7 and / or the second parameter value 52 are arranged exclusively below an imaginary straight line extending in the y direction.

[0068] 4 shows an operating device 2 according to a first modified example, which is also referred to as a first operating device 2A. The operating device 2, for example, has at least two, in particular exactly two, selection elements 6, 7, which expediently both have the same vertical extension as the display unit 4 and are aligned vertically flush with this display unit 4.

[0069] Illustratively, the power tool 20 is configured as a handheld circular saw or a table circular saw, and the first parameter is, for example, a cutting depth and / or the second parameter is a cutting angle.

[0070] It is further possible for the power tool 20 to be configured as a cross-cut saw and for the first parameter to be, for example, a bevel angle and / or for the second parameter to be, for example, a tilt angle (which is in particular adjustable perpendicularly to this bevel angle).

[0071] 5 shows an operating device 2 according to a second variant, which is also referred to as a second operating device 2B.

[0072] By way of example, the selection element array 5 further comprises a third selection element 38, in particular configured as a third push button, by means of which a third parameter can be selected as the current input parameter. Operation of the third selection element 38 selects the third parameter as the current input parameter, so that a parameter value of the third parameter can be entered via the setting element 3 .

[0073] The operating device 2, for example, has at least three, in particular exactly three, selection elements 6, 7, 38, which expediently both have the same vertical extension as the display unit 4 and are aligned vertically flush with this display unit 4.

[0074] Advantageously, the display unit 4 is formed to display a third parameter value 53 of the third parameter. The third parameter value 53 is in particular the current value of the third parameter.

[0075] Advantageously, the third selection element 38 is arranged in spatial correspondence with the third parameter value 53. Exemplarily, the third selection element 38 occupies a third z-region different from the first z-region and the second z-region, and the third parameter value 53 is arranged within the third z-region.

[0076] Expediently, the third z region, the third selection element 38 and / or the third parameter value 53 are arranged exclusively below a second imaginary straight line extending in the y direction and / or the first z region, the first selection element 6 and / or the first parameter value 51 and / or the second z region, the second selection element 7 and / or the second parameter value 52 are arranged exclusively above a second imaginary straight line extending in the y direction.

[0077] For example, the power tool 20 is configured as a handheld circular saw or a table circular saw, and the first parameter is, for example, the cutting depth, and / or the second parameter is the cutting angle, and / or the third parameter is the number of rotations of the saw blade.

[0078] Advantageously, the setting element 3 comprises two input modes, both of which advantageously comprise a pressed input mode and a non-pressed input mode. In the pressing input mode, the setting element 3 is rotated by the user while it is pressed, in particular in the axial direction of the rotation axis about which the setting element 3 is rotatable. In the non-pressing input mode, the setting element 3 is rotated while it is not pressed, in particular in the axial direction of the rotation axis of the setting element. Advantageously, one of the input modes, e.g. the non-press input mode, is used for inputting at least one digit to the left of the decimal point of the parameter value of the current input parameter, and / or the other input mode, e.g. the press input mode, is used for inputting at least one digit to the right of the decimal point of the parameter value of the current input parameter. Expediently, one input mode allows multiple, in particular all, decimal places of the parameter value to be entered, and / or the other input mode allows multiple, in particular all, posterior decimal places of the parameter value to be entered. Purposefully, one input mode, in particular the non-press input mode, allows only one or more decimal places to be input (and in particular no digits after the decimal point can be input), and / or the other input mode, in particular the press input mode, allows only one or more decimal places to be input (and in particular no digits after the decimal point can be input). The control unit 15 is expediently configured to interpret the rotation of the setting element 3 in its non-pressed state as an input of one or more decimal places of the parameter value and / or to interpret the rotation of the setting element 3 in its pressed state as an input of one or more decimal places of the parameter value.

[0079] According to an optional embodiment, in the press input mode the setting element 3 is rotated while the selection element, which is assigned to the selected parameter as the current input parameter, is pressed.

[0080] Advantageously, all inputtable parameter values ​​can be inputted - thus in particular via a rotary-pressure actuator - via the setting element 3. Expediently, the power tool 20 does not have any touch screen, letter keys (Buchstabenblock) or number keys (Ziffernblock) for inputting parameter values.

[0081] Advantageously, a main menu can be called up via a double press of the setting element 3. The main menu comprises a number of menu elements, which are displayed on the display unit 4, in particular one above the other. Expediently, via rotation of the setting element 3, a menu element can be selected from a plurality of possible menu elements, and by pressing the setting element 3, the selection of the menu element can be confirmed.

[0082] Advantageously, the power tool 20 is configured to simultaneously display a number of selectable parameter presets 39 on the display unit 4. The parameter presets 39 are also called favorite parameters or parameter presets. Advantageously, each parameter preset 39 can comprise a respective parameter value for a parameter selectable by the selection element, in particular for all parameters selectable by the selection element. Advantageously, each parameter preset 39 can comprise two parameter values ​​for two different parameters. The parameter values ​​of the parameter preset 39 are also referred to as preset parameter values. Expediently, the parameter presets 39 are displayed on the display unit 4 one above the other, in particular beside the first parameter value 51 and / or the second parameter value 52 and / or (if present) the third parameter value 53. Expediently, the parameter presets 39 are displayed simultaneously with the parameter values ​​51, 52 and / or 53. In particular, the parameter presets 39 are displayed as a list on the display unit 4. This list extends expediently over the entire height of the display unit 4. Exemplarily, at least two, at least three or at least four parameter presets 39 are displayed simultaneously on the display unit 4.

[0083] Alternatively, it is possible that each parameter preset 39 is intended to have only one parameter value of only one parameter. Expediently, each parameter preset 39 is then arranged in the z-area of ​​the selection element to which the respective parameter preset 39 is assigned to the associated parameter.

[0084] Advantageously, all existing parameter presets 39 are not displayed simultaneously and / or via a rotation of the setting element 3 it is possible to scroll through all existing parameter presets 39 .

[0085] Alternatively, it is possible for the power tool 20 to be configured such that, in response to the tool, in particular the saw blade, being not located in the standby position and therefore the cover hood 14 not being able to be placed on the processing unit 12 and / or fixed to this processing unit exactly based on the current position of the tool, in particular the saw blade, a standby position symbol is displayed on the display unit 4 and, via selection of this standby position symbol, the tool, in particular the saw blade, can be moved to the standby position. The waiting position symbol may be displayed, for example, in a list of presets 39 . Alternatively, it is possible for the power tool 20 to be configured so as not to display the standby position symbol, provided that the tool, in particular the saw blade, is located in the standby position and therefore the cover hood 14 can be placed exactly on the processing unit 12 and / or fixed to this processing unit.

[0086] As exemplarily shown in FIG. 4, it is possible for each parameter preset 39 to comprise a first parameter, e.g. a first preset parameter value for the cutting depth, and / or a second parameter, e.g. a second preset parameter value for the cutting angle. Each parameter preset 39 is displayed on the display unit 4, exemplarily above one another, by displaying the preset parameter values ​​respectively belonging to this parameter preset 39, in particular as numerical elements.

[0087] As shown exemplarily in FIG. 5, each parameter preset 39 can optionally comprise up to three preset parameter values, which are expediently displayed one above the other.

[0088] Advantageously, the currently set parameter value can be stored as a parameter preset 39 by simultaneously pressing at least two selection elements, for example the first selection element 6 and the second selection element 7 . The currently set parameter value is in particular the currently displayed first parameter value 51, and / or the currently displayed second parameter value 52, and / or (if present) the currently displayed third parameter value 53.

[0089] Advantageously, one of the currently set parameter values ​​can be deselected by pressing the assigned selection element, in order to cause the currently set parameter value not to be stored together when storing the parameter preset 39. Optionally, the deselection of the parameter value can be cancelled by pressing the assigned selection element again.

[0090] Alternatively, the memory location of the new parameter preset 39 to be stored, in particular within the list, can be determined via the setting element 3, in particular exclusively via the setting element 3, in particular by rotating the setting element 3 to select the memory location and by subsequently pressing the setting element 3 to confirm the selection.

[0091] Optionally, the power tool 20 is configured to receive at least one of the parameter presets 39 from the mobile device 30 via the communication interface 19. Advantageously, the power tool 20 comprises personalized parameter presets, e.g. received from the mobile device 30, and non-personalized parameter presets, e.g. not received from the mobile device 30. Expediently, the power tool 20 is designed in such a way that it handles personalized parameter presettings differently than non-personalized parameter presettings. For example, the power tool 20 may be configured to display the personalized parameter presets and / or not display the non-personalized parameter presets during coupling with the mobile device 30. For example, the power tool 20 may be configured to no longer display the personalized parameter presets and / or to display the non-personalized parameter presets after the coupling with the mobile device 30 is terminated.

[0092] Advantageously, via rotation of the setting element 3, the parameter presets 39 can be scrolled through in order to select one parameter preset 39, and by pressing the setting element 3, the selected parameter preset 39 can be activated. By activating the parameter preset 39, the preset parameter values ​​of the selected parameter preset are set as the first parameter value 51, the second parameter value 52 and (if present) the third parameter value 53.

[0093] Advantageously, the power tool 20, in particular the control unit 15, is configured to convert the rotation of the setting element 3 into a scrolling of parameter presets 39 if no parameter has been selected as the current input parameter.

[0094] Alternatively, the power tool 20 has a passive operating mode, in which the tool 8 is not movable in a processing movement for processing the workpiece 9. For example, the control unit 15 brakes the drive of the tool 8 (which can be provided in particular via the tool drive unit 16) in the passive operating mode. In the passive operating mode, the power tool 20 displays use instruction information via the display unit 4 in order to expediently inform the user on how to handle the power tool 20 as specified. The power tool 20 further comprises an active operating mode, in which the tool 8 can be moved for a machining movement, for example, the control unit 15 releases the drive of the tool 8 via the tool drive unit 16 in the active operating mode. Alternatively, the control unit 15 can automatically cause the power tool 20 to assume a passive operating mode first when the power tool 20 is started - in particular when the power tool 20 is first switched on - and switch to the active operating mode only after one or more operations of the setting element 3, by which one or more displayed use instruction information items are confirmed, in an expedient manner.

[0095] Advantageously, the power tool 20 is formed to indicate the passive and / or active operating modes by a respective displayed operating mode on the display unit 4, in particular by a respective background brightness. For example, the control unit 15 sets the background luminance of the display unit 4 darker in the passive operating mode than in the active operating mode. By background luminance is meant, for example, the luminance of the hue of the background color. For example, the control unit 15 sets the hue of the background color of the display unit 4 darker in the passive operating mode than in the active operating mode.

[0096] Advantageously, the power tool 20 is equipped with a display-stack store 43. Figure 6 shows a schematic diagram of an exemplary display-stack store 43 in three different states. The display-stack store 43 is implemented by software, for example, in particular in the control unit 15.

[0097] In the display-stack storage device 43, message objects 44A, 44B, 44C are stored in advance and assigned to the respective messages, in particular fault messages, to be displayed on the display unit 4. In a first state shown on the left, a first message object 44A and a second message object 44B are pre-stored in the display-stack storage device 43. In a second state shown in the center, a third message object 44C is further added in the display-stack storage device 43. In a third state shown on the right, only the second message object 44B exists in the display-stack storage device 43.

[0098] The power tool 20 is designed to display, in particular fully display, on the display unit 4 a message whose message is assigned to a message object located in the first position in the display-stack storage device 43. This message is also referred to as the currently displayed message. Expediently, the power tool 20 is designed not to display other messages, i.e. messages assigned to message objects not located in the first position, and / or to display them only partially, for example partially obscured by the currently displayed message. In the state shown on the left, the power tool 20 displays in full on the display unit 4 the message assigned to the first message object 44A (located in the first position) and does not display, or only partially displays, the message assigned to the second message object 44B. In the state shown in the center, the power tool 20 displays the message assigned to the third message object 44C (located in the first position) in full on the display unit 4, and does not display or only partially displays the messages assigned to the other message objects 44A, 44B. In the state shown on the right, the power tool 20 displays on the display unit 4 all the messages assigned to the second message object 44B (located in the first position).

[0099] Expediently, the power tool 20 is configured such that, in response to a confirmation input performed by the operating device 2 (in particular by the user), the notification object located in the first position is removed from the display-stack memory device 43, and the lower notification objects are each shifted forward by one position. The confirmation is effected, for example, by means of the setting element 3, in particular by pressing said setting element 3. For example, in the state shown in the center in FIG. 6, in transitioning to the state shown on the right, a confirmation input is first made for the third notification object 44C located in the first position, thereby removing the third notification object 44C from the display-stack storage device 43, and shifting the first notification object 44A and the second notification object 44B forward by one position, so that the first notification object 44A is located in the first position. A confirmation input is then made for the first message object 44A, now located in the first position, which causes the first message object 44A to be removed from the display-stack storage device 43 and the second message object 44B to shift forward by one position so that the second message object 44B is now located in the first position.

[0100] Purposefully, the power tool 20 is configured to set the notification object assigned to the further notification in a first position in the stack memory device 43 in response to a predetermined phenomenon that causes the further notification, and to shift the notification objects previously present in the stack memory device 43 one position backward, respectively. The predetermined phenomenon is recognised by the control unit 15 and is, for example, an error phenomenon. For example, in the transition from the state shown on the left in FIG. 6 to the state shown in the center, a predetermined phenomenon occurs which causes a notification assigned to the third notification object 44C, and thus the third notification object 44C is set to a first position in the stack memory device 43, and the notification objects 44A and 44B previously present in the stack memory device are each shifted backward by one position.

[0101] The control unit 15 is in particular formed to always display the most recent message on the display unit 4 and to cover up with this message one or more messages displayed earlier. Expediently, the control unit 15 is configured to remove the most recent message depending on a confirmation input carried out by the operating device 2 and to display the message which was previously obscured by the most recent message which has then been removed.

[0102] The power tool 20 can expediently be operated in one manner, which comprises the step of inputting parameter values ​​via the setting element 3 .

[0103] Advantageously, first of all a first parameter is selected as the current input parameter via operation of the first selection element 6. Expediently, then, by rotating the setting element 3, the parameter value of the current input parameter - i.e. the first parameter - is changed and thus entered. Exemplarily, in order to change and thereby input one or more decimal places of a parameter value, the setting element 3 is first rotated in the non-press input mode, which parameter value is in turn displayed on the display unit 4. Advantageously, the power tool 20 positions the tool 8 according to the changed (and currently displayed) parameter values ​​throughout the rotation of the setting element 3. As soon as the rotation of the setting element 3 is terminated, the power tool 20 stops the translation movements of the tool 8 carried out for the purpose of positioning this tool 8. Exemplarily, the setting element 3 is then rotated in the press-input mode in order to change and thereby enter one or more decimal places of the parameter value, which is in turn displayed on the display unit 4. Advantageously, the power tool 20 positions the tool 8 according to the changed (and currently displayed) parameter values ​​throughout the rotation of the setting element 3. As soon as the rotation of the setting element 3 is terminated, the power tool 20 stops the translation movements of the tool 8 carried out for the purpose of positioning this tool 8.

[0104] Expediently, the second parameter is then selected as the current input parameter via operation of the second selection element 7. Input of the parameter value then takes place expediently in the same way as described in connection with the parameter value of the first parameter.

[0105] Optionally, the power tool 20 may be operated by a method that includes the following steps: - Pre-retention of the objects 44A, 44B, and 44C to be reported; these notification objects are assigned to the respective notifications, in particular fault notifications, which are to be displayed on the display unit 4; - a display of the message, which is assigned to the message object located in the first position in the display-stack storage; - removal of the notification object located in the first position from the stack memory 43 in response to a confirmation input carried out by the operating device 2, Therefore, the lower notification objects are each shifted forward by one position. and / or - in response to a predefined phenomenon that triggers a further notification, a set of message objects assigned to a further message in a first location in the stack storage device 43; and the backward movement of each of the notification objects previously present in the stack memory by one position; The steps are as follows.

Claims

1. A power tool (20), in particular a sawing device, comprising a tool (8), in particular a saw blade, for processing a workpiece (9), The electric power tool (20) includes an operating device (2), via said operating device (2) at least one parameter value for the operation of said tool (8), for example a cutting depth and / or a cutting angle, can be input; The operating device (2) comprises a setting element (3) configured as a rotary-push actuator for inputting parameter values ​​and a display unit (4) for displaying at least one of the parameter values, A power tool (20).

2. Further, a selection element array (5) for selecting a parameter as a current input parameter is provided; the parameter value of this input parameter can currently be entered by means of said setting element (3), The power tool (20) of claim 1 .

3. the selection element array (5) has a first selection element (6), in particular configured as a first push button, by means of which a first parameter, for example the cutting depth, can be selected as the current input parameter, and the selection element array (5) comprises a second selection element (7), in particular configured as a second push button, by means of which a second parameter, e.g. the cutting angle, can be selected as the current input parameter; The power tool (20) of claim 2.

4. The display unit (4) configured to display a first parameter value (51) of the first parameter and a second parameter value (52) of the second parameter; the first selection elements (6) are arranged in spatial correspondence with the first parameter values ​​and the second selection elements (7) are arranged in spatial correspondence with the second parameter values; The power tool (20) according to claim 3.

5. The setting element (3) has two input modes, namely a pressing input mode and a non-pressing input mode; one of the input modes is utilized for inputting at least one decimal place of the parameter value; and the other input mode is utilized for inputting at least one decimal place of the parameter value. A power tool (20) according to any one of the preceding claims.

6. all parameter values ​​that can be input to the power tool (20) can be input via the setting element (3); and The power tool (20) does not have any touch screen, letter keys, or number keys for inputting parameter values. A power tool (20) according to any one of the preceding claims.

7. Via a double press of the setting element (3), the main menu can be called up; A power tool (20) according to any one of the preceding claims.

8. The electric tool (20) comprises: the display unit (4) is configured to simultaneously display a plurality of selectable parameter presets (39); Each of the parameter presets (39) comprises at least two preset parameter values ​​for two different parameters. A power tool (20) according to any one of the preceding claims.

9. The currently set parameter value can be stored as a parameter preset by pressing both selection elements (6, 7) simultaneously. A power tool (20) according to claim 8 in combination with claim 3, characterized in that

10. Furthermore, it comprises a communication interface (19) for communication with a mobile device (30), in particular a mobile phone, the power tool (20) is configured to receive at least one of the parameter presets (39) from the mobile device (30) via the communication interface (19), A power tool (20) according to claim 8 or 9.

11. via rotation of the setting element (3) the parameter presets (39) can be scrolled through in order to select one parameter preset (39), and by pressing the setting element (3) the selected parameter preset (39) can be activated; A power tool (20) according to any one of claims 8 to 10.

12. Furthermore, a positioning device (17) having at least one electric motor for providing a movement of the tool (8), the power tool (20) is configured to perform said movement for the purpose of repositioning the tool (8) and / or for the purpose of a calibration movement of this tool (8), and The electric tool (20) - the displacement movement is only carried out while the actuation of the operating device (2), in particular the setting element (3), is being provided; and the actuation device (2), in particular designed to stop the displacement movement as a function of the actuation of the setting element being no longer applied, A power tool (20) according to any one of the preceding claims.

13. said manipulation of said manipulation device (2) is performed for the purpose of changing the parameter value, and the power tool is configured to position the tool (8) by the movement in accordance with the changed parameter value, The power tool (20) according to claim 12.

14. The electric tool (20) comprises: configured to display the changing parameter value on the display unit (4) during the change in the parameter value and during the locomotion movement. The power tool (20) according to claim 13.

15. The power tool (20) has a passive operating mode, in which the tool (8) is not movable in a working movement for working the workpiece (9), In the passive operating mode, the power tool (20) displays usage instruction information via the display unit (4) in order to inform a user how to properly handle the power tool (20); and the power tool (20) further comprises an active operating mode, in which the tool (8) is movable in the machining movement; A power tool (20) according to any one of the preceding claims.

16. The electric tool (20) comprises: the passive operating mode and / or the active operating mode are displayed by a respective display operating mode of the display unit (4), in particular by a respective background luminance, The power tool (20) according to claim 15.

17. the operating device (2) has a tool drive operating device (34) via which the drive of the tool (8) for the machining movement / the movement of the tool (8) to the machining movement can be switched on and / or off, the power tool (20) further comprises a main on / off switch (37), via which the power tool (20), in particular the operating device (2), can be switched on and / or off; A power tool (20) according to any one of the preceding claims.

18. The power tool (20) includes a display-stack storage device (43); In the display-stack storage device, notification objects (44A, 44B, 44C) are stored in advance, and these notification objects are assigned to the respective notifications, in particular fault notifications, to be displayed on the display unit (4); The electric tool (20) displaying a message assigned to a message object located in a first position in said display-stack storage device (43); and removing the notification object located in the first position from the stack memory device (43) in response to a confirmation input carried out by the operating device (2), so that the lower notification objects are each shifted forward by one position; and / or in response to a predetermined phenomenon which causes a further notification, a notification object assigned to the further notification is set in a first position in the stack memory (43), and the notification objects previously present in the stack memory are each shifted backward by one position, 18. The power tool (20) according to any one of claims 1 to 17, characterized in that

19. The power tool (20) has a cooling mode, in which the tool (8) is driven at a reduced rotational speed to cause cooling of the power tool (20) via a fan wheel (33) of the power tool (20) coupled to the tool (8); The electric tool (20) prior to assuming the cooling mode, outputting a warning signal indicating that the power tool (20) will assume the cooling mode, and / or outputting a cooling mode signal during the cooling mode, the cooling mode signal being configured to indicate that the power tool (20) is in the cooling mode. A power tool (20).

20. A method for operating a power tool (20) according to any one of claims 1 to 19, comprising the steps of: The method, characterized in that it comprises a step of inputting, via said setting element (3), said parameter values.

Images