Hand-held power tool and method for operating a hand-held power tool

Abstract

The invention relates to a hand-held power tool (5) comprising a human-machine interface (HMI 10), wherein the hand-held power tool (5) can be operated at least in a first operating mode and / or a second operating mode, wherein the HMI (10) has a first operating element (30) and a third operating element (85) for the first operating mode and a second operating element (35) for the second operating mode, wherein the first operating mode can be activated, set to a plurality of stages and deactivated, wherein the first operating mode can be activated and deactivated by means of the first operating element (30), wherein the first operating mode can be set to the stages by means of the third operating element (85), wherein the second operating mode can be activated and deactivated by means of the second operating element (35), wherein the HMI (10) has a stage display (40) for displaying the plurality of settable stages for the first operating mode. The invention also relates to a method (300) for operating a hand-held power tool (5).

Description

[0001] R. 417512

[0002] - 1 -

[0003] Description

[0004] title

[0005] Hand-held power tool and methods for operating a hand-held power tool

[0006] The invention relates to a hand-held power tool with a human-machine interface and a method for operating a hand-held power tool.

[0007] State of the art

[0008] Hand-held machine tools with human-machine interfaces and methods for operating hand-held machine tools are known from the prior art.

[0009] Disclosure of the invention

[0010] The object of the invention can be seen as providing an improved handheld power tool and an improved method for operating a handheld power tool. In particular, the object can be seen as providing a handheld power tool and a method that offer increased user-friendliness and adjustment options.

[0011] The problem is solved using a hand-held power tool according to claim 1 and a method for operating a hand-held power tool according to claim 10. Advantageous embodiments are specified in the dependent claims.

[0012] According to one aspect of the invention, a hand-held power tool with a human-machine interface (HMI) is proposed. The hand-held power tool is available in at least a first operating mode and / or a second operating mode. 417512

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[0014] The operating mode is operable, wherein the HMI has a first control element and a third control element for the first operating mode and a second control element for the second operating mode. The first operating mode can be activated, set to a multitude of levels, and deactivated, wherein the first operating mode can be activated and deactivated using the first control element, and wherein the first operating mode can be set to the levels using the third control element. The second operating mode can be activated and deactivated using the second control element. The HMI has a level indicator to display the multitude of adjustable levels for the first operating mode.

[0015] In general, an operating mode can be understood as a device setting for a handheld power tool. For example, an operating mode could be a speed setting for the power tool. Another example of an operating mode could be a kickback function for the power tool.

[0016] The first operating mode can be understood as a device setting that offers a wide range of adjustment options. For example, a speed setting might have many different speed settings, meaning it could be adjustable in numerous steps. The second operating mode can be understood as a device setting for which no adjustable steps are provided. For example, no adjustment option is provided for a kickback function. A kickback function can be activated and deactivated, and no different adjustable steps are provided. In other words, the second operating mode offers the states "activated" and "deactivated," while the first operating mode, when activated, additionally allows for a kind of fine-tuning, i.e., an adjustment in numerous steps, for the operating mode.

[0017] A step indicator can be understood as a visual display device for a hand-held power tool. The step indicator shows the user of the power tool the currently selected step for a first operating mode. For example, an R. 417512

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[0019] The currently activated and set speed level for operating the hand-held power tool is displayed via the speed indicator.

[0020] This allows for the technical advantage of providing an improved handheld power tool. In particular, it offers the advantage of increased user-friendliness and improved adjustment options. By separating the controls – with the first control activating or deactivating the primary operating mode and the separate third control adjusting the various speed settings – a particularly clear and intuitive user experience is achieved. This effectively reduces operating errors, as the activation or deactivation of the primary operating mode is clearly separated from the adjustment of the speed settings.Furthermore, the dedicated second control for activating and deactivating the second operating mode enables quick and easy operation of this mode. This can lead to improved flexibility, increased operational reliability, and enhanced user comfort of the power tool. Additionally, the integration of a clear stage indicator allows the set status to be precisely monitored at all times, further improving ergonomics and safety during operation.

[0021] In a further embodiment, the activation and deactivation of the operating modes can be carried out by actuating the respective associated control element, wherein the activation and deactivation of the operating modes can be carried out via a time-defined actuation of the respective associated control element.

[0022] This allows for the technical advantage of particularly safe and unambiguous operation of the hand-held power tool. The time-defined activation of the respective controls reliably prevents the operating modes from being unintentionally or accidentally activated or deactivated. This effectively reduces operating errors. Furthermore, the user interface R. 417512

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[0024] This makes it more compact and easier to understand, as individual controls can perform multiple functions in a clearly distinguishable way.

[0025] In a further embodiment, the setting of the plurality of steps for the first operating mode can be carried out after activation via the first control element and by actuating the third control element, wherein the setting of the steps can be carried out by repeatedly actuating the third control element and / or by continuously actuating the third control element within a predefinable time period.

[0026] This allows for the technical advantage that the adjustment of the numerous levels can be carried out particularly easily, intuitively, and precisely. The ability to adjust the levels either by repeatedly pressing the third control element or by holding it down for a defined period ensures quick and precise adaptation of the initial operating mode.

[0027] In a further embodiment, the HMI has a further third control element for setting the first operating mode, wherein the level for the first operating mode can be increased using the third control element, and wherein the level for the first operating mode can be decreased using the further third control element.

[0028] This allows for the technical advantage of further improving the usability of the HMI for the handheld power tool. By providing a third control element for increasing and another for decreasing the steps in the first operating mode, particularly precise and convenient step adjustment is possible. This enables the user to adapt the operating steps precisely and quickly to the respective requirements, which can be especially advantageous in work environments with changing operating conditions. Furthermore, the clear functional separation of increasing and decreasing the steps effectively reduces the risk of operator error, thus improving the user experience. R. 417512

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[0030] Ease of use can be improved when using the hand-held power tool.

[0031] In a further embodiment, the first and second control elements are additionally designed as indicator elements. The control elements are designed to show a user whether the respective operating mode assigned to them is activated or deactivated, and are illuminated for this purpose, particularly in the form of buttons.

[0032] This offers the technical advantage that the user of the hand-held power tool can easily, intuitively, and reliably recognize whether a specific operating mode is currently activated or deactivated. In particular, the design of the controls as illuminated buttons provides clear visual feedback, effectively preventing operating errors and ensuring precise control of the device.

[0033] At the same time, combining the operating and display elements into one component results in a clear and compact HMI design, which can improve the handling of the hand-held machine tool.

[0034] In another embodiment, the step display is designed in the form of a 7-segment display, in particular in the form of a two-digit 7-segment display.

[0035] In another embodiment, the step indicator is designed as an LED bar in the form of a multitude of illuminated LED elements.

[0036] This achieves the technical advantage of providing the user with a particularly precise, accurate, and unambiguous display of the currently selected level. In particular, the use of a 7-segment display or an LED bar allows for the clear and space-saving presentation of a large number of adjustable levels. This improves usability and ensures quick and error-free assignment of the adjustable levels. At the same time, this design offers the advantage of a particularly R. 417512

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[0038] compact display, which makes the HMI as a whole clearer and more user-friendly.

[0039] In another embodiment, the HMI has a work area lighting feature, wherein the work area lighting can be activated and deactivated as a second operating mode using the second control element.

[0040] This offers the technical advantage of providing the user with a simple, quick, and intuitive way to selectively illuminate a work area. Because the work area lighting can be activated and deactivated directly via the second control element as an independent second operating mode, the user can react flexibly and appropriately to different lighting conditions. Furthermore, this design enables a convenient and functionally integrated solution for the HMI, as no external lighting is required.

[0041] In a further embodiment, the hand-held power tool can be operated in a third operating mode, wherein the third operating mode can be activated and deactivated using the first and second control elements, wherein the activation and deactivation of the third operating mode can be carried out by simultaneously and in a time-defined manner actuating the first control element and the second control element.

[0042] A third operating mode can be understood as a specific setting for the HMI of the handheld power tool. For example, a third operating mode could be a locking function for the HMI. In other words, activating the third operating mode allows the user to lock the HMI, preventing them from activating, adjusting, or deactivating the first or second operating modes. After deactivating the third operating mode, the HMI is unlocked. In other words, in the unlocked state, the user can then activate, adjust, or deactivate the first or second operating mode. R. 417512

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[0044] This allows for the technical advantage of easily, safely, and unambiguously activating and deactivating a third operating mode without requiring a separate, additional control element. The specific activation and deactivation of the third operating mode through the simultaneous and time-defined actuation of the first and second control elements reduces the size of the user interface and simultaneously prevents accidental or unintentional activation. This deliberately combined operating procedure creates a clear, intuitive, and space-saving solution that can further improve the ergonomics and operating safety of the power tool.

[0045] According to a second aspect of the invention, a method for operating a hand-held power tool, in particular a hand-held power tool according to one of the preceding embodiments, is proposed, wherein the hand-held power tool has a HMI for operation by a user, wherein the HMI has a first control element and a third control element for a first operating mode and a second control element for a second operating mode, wherein the HMI has a stage display for displaying a plurality of adjustable stages for the first operating mode, comprising the following steps:

[0046] - Activating the first and / or second operating mode,

[0047] wherein the first operating mode is activated by pressing the first control element and the second operating mode is activated by pressing the second control element,

[0048] - Setting a level for the first operating mode,

[0049] wherein the level setting is performed after the activation of the first operating mode and by actuating the third control element, whereby a set level for the first operating mode is displayed via the level indicator,

[0050] - Deactivating the first and / or second operating mode, whereby the first operating mode is deactivated by pressing the first control and the second operating mode is deactivated by pressing the second control. R. 417512

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[0052] This provides the technical advantage of an improved method for operating a handheld power tool. In particular, the clear separation of the control functions—namely, activating or deactivating the respective operating mode via the first or second control, and setting the respective power level via the separate third control—enables particularly intuitive and therefore safe operation of the power tool. The display of the selected operating levels via the level indicator further ensures that the user is always clearly informed about the current operating status, effectively preventing operating errors.

[0053] In another embodiment, the activation and deactivation of the first and / or second operating mode is carried out by means of a time-defined actuation of the respective associated control element.

[0054] This achieves the technical advantage of ensuring the safe and simple activation and deactivation of the respective operating modes. In particular, the time-defined actuation of the controls reliably prevents accidental or unintended changes in function, leading to increased operational safety. At the same time, this method allows for a reduction in the number of required controls, as a single control can perform multiple functions by linking different operating actions (short or long actuation) with clearly distinguishable functional states.

[0055] In another embodiment, the adjustment of the steps is carried out by multiple actuations and / or by a continuous actuation of the third control element within a predefinable time period.

[0056] This allows for the technical advantage that the setting of the operating stages for the first operating mode can be performed intuitively, precisely, and flexibly. This is achieved in particular through the possibility of either multiple actuations or a sustained actuation of the third R. 417512

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[0058] By providing a control element within a defined timeframe, the user can quickly and easily adjust the operating level. This can be particularly helpful in different work situations or with varying requirements, as it allows for precise and rapid adjustments. Furthermore, this reduces the complexity of the user interface, thus ensuring improved clarity.

[0059] In another embodiment, the HMI has a further third control element, wherein the setting of the level for the first operating mode is performed using the third control element and the further third control element.

[0060] This allows for the technical advantage of further improving the operating procedure for a hand-held power tool. By adjusting the speed settings using two separate controls—namely, a third and a further third control—a particularly simple, intuitive, and unambiguous operating logic can be implemented. For example, one of the two controls can be used to increase the operating speed, while the other decreases it. This can help to effectively minimize operator errors.

[0061] In a further embodiment, a third operating mode is activated and deactivated by actuating the first and second control elements, wherein the activation and deactivation of the third operating mode is carried out by simultaneously and in a time-defined manner actuating the first and second control elements.

[0062] This achieves the technical advantage that activation and deactivation of a third operating mode can be performed clearly and intuitively. The simultaneous and time-defined actuation of the first and second control elements ensures that accidental or unintentional activation or deactivation of this additional operating mode is reliably prevented. At the same time, the need for a [R. 417512] is eliminated.

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[0064] additional, separate control element, which contributes to a more compact and at the same time clear design of the HMI.

[0065] The invention is explained in more detail below using exemplary embodiments. These include:

[0066] Fig. 1 shows a hand-held power tool and a human-machine interface in a first exemplary embodiment,

[0067] Fig. 2 shows a hand-held power tool and an HMI in a further exemplary embodiment,

[0068] Fig. 3 shows a hand-held power tool and an HMI in a further embodiment,

[0069] Fig. 4 shows a hand-held power tool and an HMI in a further exemplary embodiment,

[0070] Fig. 5 shows a schematic representation of a method for operating a hand-held power tool,

[0071] Fig. 6 shows a hand-held power tool and an HMI in a further embodiment,

[0072] Fig. 7 shows a hand-held power tool and an HMI in a further embodiment,

[0073] Fig. 8 shows a schematic representation of a method for operating a hand-held power tool,

[0074] Fig. 9 shows a hand-held power tool and an HMI in a further embodiment,

[0075] Fig. 10 shows a hand-held power tool and an HMI in a further embodiment,

[0076] Fig. 11 shows a hand-held power tool and an HMI in a further embodiment. R. 417512

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[0078] Please note that the figures are schematic and not to scale. Therefore, components shown in the figures may be exaggerated in size for clarity.

[0079] Fig. 1 shows an exemplary hand-held machine tool 5 and a human-machine interface (HMI 10) in a first exemplary embodiment.

[0080] The hand-held power tool 5 is exemplified as an impact wrench or rotary impact wrench. The hand-held power tool 5 could also be any other type of hand-held power tool, such as an angle wrench. In the exemplary embodiment of an impact wrench or rotary impact wrench, the hand-held power tool 5 has a trigger 15, a direction switch 20, and a gear selector switch (not shown). The trigger 15 is designed to initiate operation of the hand-held power tool 5. The direction switch 20 is designed to select the direction of rotation of the hand-held power tool 5.

[0081] The hand-held power tool 5 features the HMI 10. The HMI 10 is, by way of example, arranged in an area above a power supply source 25 provided for the operation of the hand-held power tool 5. The power supply source 25 is, by way of example, designed as a battery or a battery pack. However, the hand-held power tool 5 can also be connected to a power supply network for operation.

[0082] The hand-held power tool 5 can be operated in at least one operating mode and / or one operating mode. The first operating mode can be activated, adjusted in a variety of steps, and deactivated. The second operating mode can be activated and deactivated.

[0083] In general, an operating mode can be understood as a specific device setting or function of the hand-held power tool 5, which predetermines the manner in which the hand-held power tool 5 is operated. (Ref. 417512)

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[0085] Operating modes can be used, for example, to adapt the handheld power tool 5 to different requirements and working conditions. Different operating modes can be used, for instance, to set various speeds, power levels, or safety mechanisms to increase efficiency, precision, and ease of use.

[0086] The first operating mode and the second operating mode differ in that the first operating mode, in addition to activation and deactivation, can be set in a variety of levels.

[0087] The first operating mode could be, for example, a speed setting for a specific rotational speed, an auto-shut-off function, an auto-slow-down function, an ABR function, a shutdown after a certain time function, or light intensity control. The second operating mode could be, for example, a function such as work light on / off, free-socket mode on / off, or soft start on / off.

[0088] The HMI 10 allows a user to set different operating modes for the hand-held power tool 5. The HMI 10 has at least one control element 30 for the first operating mode and a second control element 35 for the second operating mode. The first operating mode can be activated, set, and deactivated using the first control element 30. The second operating mode can be activated and deactivated using the second control element 35.

[0089] The control elements 30 and 35 can, for example, be in the form of buttons 60 and 65. It is also conceivable that the control elements 30 and 35 are integrated into the HMI 10, for example, in the form of a touch display.

[0090] In this embodiment, the HMI 10 has the first control element 30 in the form of a first button 60 and the second control element 35 in the form of a second button 65. Using the first control element 30 or the first button 60, the first operating mode for the hand-held power tool 5 can be activated, adjusted, and deactivated. The first operating mode can, for example, be used to adjust the speed of the R. 417512

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[0092] The hand tool 5 can be used in a second operating mode. The second operating mode for the hand tool 5 can be activated and deactivated using the second control element 35 or the second button 65. This second operating mode could, for example, be the Free-Socket-Mode On / Off function. Activating, setting, and deactivating the first operating mode is possible, for example, by pressing the first button 60. Activating and deactivating the second operating mode is possible, for example, by pressing the second button 65.

[0093] In this version, for example, pressing the first button 60 allows the first operating mode for adjusting the speed in several steps. For instance, the speed setting for the hand-held power tool 5 can be adjusted between 1,000 revolutions per minute as the lowest setting and 3,000 revolutions per minute as the highest setting.

[0094] The HMI 10 features a step indicator 40 to display the multiple adjustable steps for the first operating mode. The currently selected step for the first operating mode can be displayed using step indicator 40.

[0095] The stage indicator 40 is shown as an example in the form of illuminated elements, specifically as an LED bar. For instance, the illuminated elements are simple point LEDs arranged on the HMI 10.

[0096] Five dot LEDs in the form of an LED bar are shown as an example to represent the stage indicator 40. In the present embodiment, the stage indicator 40 can display five different stages for a first operating mode. For example, a first stage 100 can be indicated by the first LED illuminating, and a final stage 110 by all five LEDs illuminating. Three intermediate stages 105, each represented by a dot LED, are provided for a second, third, and fourth stage. The first stage 100 can, for example, be considered to correspond to a speed of 1,000 revolutions per minute, and the final stage 110 can, for example, be considered to correspond to a speed of 3,000 revolutions per minute. The intermediate stages 105, or the second, third, and fourth stages, are preferably linearly increasing from the first stage R. 417512

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[0098] The first stage is divided into 100 and the last stage into 110. For this embodiment, the settings would therefore be 1,500 revolutions per minute for the second stage, 2,000 revolutions per minute for the third stage, and 2,500 revolutions per minute for the fourth stage.

[0099] The HMI 10 can additionally have two further first operating elements 50. These two additional first operating elements 50 can, for example, be in the form of a third button 70 and a fourth button 75. Using these two additional first operating elements 50, two additional and different first operating modes can be activated, set, and deactivated. For example, the third button 70 can be used to activate, set, and deactivate Auto-Shut-Off as another first operating mode. The fourth button 75 can be used to activate, set, and deactivate Auto-Shut-Off after time as another first operating mode. The level indicator 40 can also be used to display the multiple levels of the additional first operating modes.

[0100] Additionally, a second control element 55, in the form of a fifth button 80, can be provided for a further second operating mode. This second operating mode could, for example, be work area lighting on / off. For this purpose, HMI 10, for instance, has a work area lighting 45. The work area lighting 45 can be activated and deactivated by pressing the fifth button 80.

[0101] Additionally, the first control element 30 and / or the second control element 35 and / or the further first and second control elements 50 55 can also be designed as indicator elements. For example, it is conceivable that the control elements 30, 35, 50, 55, or the buttons 60, 65, 70, 75, 80, are illuminated after activation of an associated operating mode.

[0102] This allows the user to be advantageously informed via the HMI 10 which of the operating modes the hand-held machine tool 5 is in.

[0103] In one embodiment, after activation of the first operating mode, the stage indicator 40 can display the last used stage of the selected and activated operating mode. R. 417512

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[0105] It is also conceivable that the first operating mode and / or the second operating mode can be activated and deactivated by pressing the respective associated controls 30, 35, 50, 55 for a defined period. For example, it could be stipulated that to activate the first operating mode via the first control 30, the first control 30 must be pressed for one, two, or three seconds. Similarly, to deactivate the first operating mode via the first control 30, the first control 30 can also be pressed for one, two, or three seconds. This can be implemented analogously for all intended first and second operating modes and their associated controls 30, 35, 50, 55. This would prevent unintentional activation or deactivation of the operating modes, for example, by accidentally pressing a control 30, 35, 50, or 55.

[0106] Alternatively or additionally, it may be stipulated that a defined time interval is required between activating and deactivating an operating mode. For example, after activating the first operating mode via the first control element 30, it may be deactivated again after two, four, or five seconds via the first control element 30.

[0107] For setting the multiple levels of the first operating mode or a further first operating mode, it is conceivable that, after activation by reactivating the first control element 30, 50 within a predefinable time period, in particular by repeatedly actuating the control element 30, 50 within a predefinable time period, the first operating mode can be set to the different levels. For example, it may be provided that the first control element 30 is actuated several times within one second after activation of the first operating mode in order to set the level of the first operating mode.

[0108] Alternatively, it may be provided that, for setting the first operating mode or a further first operating mode after activation by re-actuating the first control element 30, 50, in particular by sustained single actuation of the first control element 30, 50, the first operating mode can be set in different stages. Thus, R. 417512

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[0110] For example, after activation, the level indicator 40 can be cycled through by repeatedly pressing and holding the first button 60. Upon reaching the last level 110 of the level indicator 40, and simultaneously pressing the first button 60 again, the level indicator 40 returns to the first level 100. When a desired level is reached, it is set by releasing the first control element 30 or the first button 60.

[0111] Furthermore, it may be provided that by actuating another first operating element 50, a further first operating mode is activated. In this case, if another first operating mode is already activated, the other first operating mode is automatically deactivated.

[0112] Alternatively or additionally, a second operating mode can be activated alongside one of the first operating modes by pressing a second control element 35. For example, pressing the fifth button 80 can switch a work light 45 on or off while one of the first operating modes remains active. This makes it possible, for example, to operate the hand-held power tool 5 in a first and a second operating mode simultaneously.

[0113] A third operating mode can also be activated and deactivated using the HMI 10. This third operating mode could, for example, be a secondary function for the HMI 10 or the handheld power tool 5. For instance, the third operating mode could be the HMI-Lock function, i.e., locking the HMI 10, or the Factory-Reset function, i.e., resetting to factory settings.

[0114] The third operating mode can be activated, for example, by simultaneously pressing the first control element 30 and the second control element 35. For instance, pressing the first control element 30 and the second control element 35 simultaneously for, say, three seconds, activates the third operating mode, HMI-Lock. Pressing the first control element 30 and the second control element 35 simultaneously again... (R. 417512)

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[0116] The HMI-Lock function can be deactivated by pressing and holding control element 30 and the second control element 35 for three seconds.

[0117] The activated HMI-Lock function can be indicated to the user by the fact that the level indicator 40 lights up continuously for, for example, 2 seconds when a control element 30, 35, 50, 55 is activated.

[0118] Furthermore, it may be provided that, for example, by pressing the first control element 50 and the second control element 55, the HMI 10 is set to Factory Reset.

[0119] Activation of the factory reset can be signaled to the user by, for example, all control elements 30, 35, 50, 55 on the HMI 10 lighting up for a defined period of time, for example one second.

[0120] Fig. 2 schematically shows a hand-held machine tool 5 and an HMI 10 in a further exemplary embodiment.

[0121] The hand-held power tool 5 and the HMI 10 are essentially identical to those shown in Fig. 1. The hand-held power tool 5 can again be configured, for example, as an impact wrench or rotary impact wrench. The hand-held power tool 5 again features a trigger 15, a direction switch 20, and a power supply 25. The HMI 10 is again positioned above the power supply 25.

[0122] The hand-held power tool 5 can again be operated in at least one operating mode and / or one operating mode. The HMI 10 has a first control element 30 for the first operating mode and a second control element 35 for the second operating mode. Furthermore, an additional first control element 50 is provided for a further first operating mode. The first control elements 30, 50 and the second control element 35 can, for example, again be implemented as a first button 60, a second button 65 and a third button 70. The first operating modes can be reactivated, adjusted in a multitude of steps, and R. 417512

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[0124] The second operating mode can be activated and deactivated. The HMI 10 again features a level indicator 40 to display the numerous adjustable levels for the first operating modes. Furthermore, the HMI 10 includes, for example, a workplace light 45.

[0125] The first operating mode can be activated, adjusted, and deactivated using the first control element 30. The second operating mode can be activated and deactivated using the second control element 35. A further first operating mode can be activated, adjusted, and deactivated using the additional first control element 50.

[0126] The step indicator 40, for example, is again implemented in the form of illuminated dot LEDs. As an example, the step indicator 40 is implemented as an LED bar consisting of five dot LEDs. Using the present HMI 10, five different step settings can therefore be displayed for the first operating modes using the step indicator 40. The display options for the step indicator 40 are analogous to those shown in Fig. 1.

[0127] Activating, setting and deactivating the first operating modes using the first controls 30, 50 can be carried out analogously to the possibilities already described in Fig. 1.

[0128] Using the second control element 35, for example, a work area lighting 45 can be activated and deactivated as a second operating mode.

[0129] Activating and deactivating the second operating mode using the second control element 35 can be carried out analogously to the possibilities already described in Fig. 1.

[0130] Using HMI 10, a third operating mode can also be activated and deactivated, whereby the possibilities already described in Fig. 1 are applicable to this third operating mode. R. 417512

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[0132] Fig. 3 shows a hand-held machine tool 5 and an HMI 10 in a further embodiment.

[0133] The hand-held power tool 5 and the HMI 10 are essentially similar in design to the hand-held power tool and the HMI shown in Fig. 1. The hand-held power tool 5 can again be configured, for example, as an impact wrench or a rotary impact wrench. The hand-held power tool 5 again includes a trigger 15, a direction switch 20, and a power supply 25.

[0134] The HMI 10 is again located above the power supply source 25 of the hand-held machine tool 5.

[0135] The hand-held power tool 5 can be operated in at least one operating mode and / or one operating mode. The HMI 10 has a stage indicator 40, a first control element 30, and a second control element 35. The first control element 30 is for the first operating mode, and the second control element 35 is for the second operating mode. The first operating mode can be activated, adjusted in a multitude of steps, and deactivated. The second operating mode can be activated and deactivated. The first operating mode can be activated, adjusted, and deactivated using the first control element 30. The second operating mode can be activated and deactivated using the second control element 35. Furthermore, the hand-held power tool 5 can be operated in a third operating mode.

[0136] The HMI 10 again features two further first operating elements 50 for two further first operating modes and a further second operating element 55 for a further second operating mode. Furthermore, an exemplary work area lighting 45 is provided.

[0137] Activating, setting, and deactivating the different operating modes using the controls 30, 35, 50, and 55 can be carried out analogously to the descriptions in Fig. 1. To avoid repetition, only the differences from the embodiment shown in Fig. 1 will be discussed below. R. 417512

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[0139] In this embodiment, the stage indicator 40 is different from that in Fig. 1 and Fig.

[0140] 2. Not designed as an LED bar with illuminated point LEDs, but as an LED bar with illuminated rectangular LEDs. For example, five illuminated rectangular LEDs are provided.

[0141] Fig. 4 shows a hand-held machine tool 5 and an HMI 10 in a further exemplary embodiment.

[0142] The hand-held power tool 5 and the HMI 10 essentially correspond to the HMI and the hand-held power tool from Fig. 1.

[0143] The hand-held power tool 5 has a trigger 15, a direction switch 20, and a power supply 25. The HMI 10, for example, is again located in an area above the power supply 25.

[0144] The hand-held power tool 5 can be operated in at least one operating mode and / or one operating mode. The HMI 10 has a first control element 30 and a second control element 35. The first operating mode can be activated, adjusted in a variety of steps, and deactivated using the first control element 30. The second operating mode can be activated and deactivated using the second control element 35. The first control element 30 and the second control element 35 are implemented, for example, as a first button 60 and a second button 65. The HMI 10 also has a step indicator 40 for displaying a variety of adjustable steps for the first operating mode.

[0145] For example, a further first control element 50 in the form of a third button 70 and a further second control element 55 in the form of a fourth button 75 are provided. The further first control element 50 serves to activate, set, and deactivate a further first operating mode. The further second control element 55 serves to activate and deactivate a further second operating mode. The hand-held power tool 5 can also be operated in a third operating mode. R. 417512

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[0147] Activating, setting, and deactivating the different operating modes using the controls 30, 35, 50, and 55 can be carried out analogously to the descriptions in Fig. 1. To avoid repetition, only the differences from the embodiment shown in Fig. 1 will be discussed below.

[0148] In contrast to Fig. 1, the stage indicator 40 of the HMI 10 is designed as a 7-segment display. This is exemplified as a two-digit 7-segment display. Using the 7-segment displays, a multitude of adjustable stages for one of the first operating modes can be displayed. For example, it is possible to display stages 0 to 99 via the two-digit 7-segment display. The stage settings can be adjusted analogously to Fig. 1 after activating the first operating mode and by re-actuating the respective associated first control element 30, 50.

[0149] Fig. 5 schematically shows a method 200 for operating a hand-held power tool.

[0150] Method 200 is used to operate a hand-held power tool.

[0151] The hand-held power tool has an HMI for operation by a user, wherein the HMI has at least a first control element for a first operating mode, a second control element for a second operating mode and a step display for displaying a multitude of adjustable steps for the first operating mode.

[0152] Procedure 200 comprises the following steps.

[0153] In a first process step 210, the first and / or the second operating mode is activated, wherein the first operating mode is activated by pressing the first control element and the second operating mode is activated by pressing the second control element.

[0154] To activate the first and / or second operating mode 210, it may additionally be provided that a time-defined actuation of R. 417512 is required.

[0155] - 22 -

[0156] The activation is carried out by pressing the respective assigned control element. For example, activation can be performed by pressing the respective assigned control element for one or two seconds.

[0157] Additionally, a third operating mode may be provided for. Activation of the third operating mode is achieved by simultaneously and for a defined period of time pressing the first and second controls. For example, activation of the third operating mode may require simultaneous pressing of the first and second controls for one or two seconds.

[0158] In a second process step 220, a stage for the first operating mode is set, wherein the setting of the stage is carried out after the activation of the first operating mode and by reactivating the first control element, whereby a set stage for the first operating mode is displayed via the stage indicator.

[0159] For setting 220 levels, it may be provided that the level setting is carried out by repeatedly pressing the first control element within a predefinable time period.

[0160] In a third process step 230, the first and / or the second operating mode is deactivated, wherein the first operating mode is deactivated by actuating the first control element and the second operating mode is deactivated by actuating the second control element.

[0161] To deactivate the first and / or second operating mode (230), it may also be necessary to perform a time-defined actuation of the respective assigned control element. For example, deactivation may require the respective assigned control element to be actuated for one or two seconds.

[0162] Additionally, it may be possible to deactivate a third operating mode. Deactivation of the third operating mode is achieved by simultaneously and for a defined period of time activating the first control element and the R. 417512.

[0163] - 23 -

[0164] second control element. For example, to deactivate the third operating mode, the first and second control elements can be activated simultaneously for one or two seconds.

[0165] The described method 200 can be used in particular for operating a hand-held power tool from Figures 1 to 4.

[0166] Fig. 6 shows a hand-held machine tool 5 and an HMI 10 in a further embodiment.

[0167] The hand-held power tool 5, for example, has a trigger 15, a direction switch 20, and a power supply 25. The HMI 10 is, for example, again located above a power supply 25 on the hand-held power tool 5.

[0168] The hand-held power tool 5 can be operated in at least one operating mode and / or one operating mode. The HMI 10 has a first control element 30 and a third control element 85 for the first operating mode. Furthermore, the HMI 10 has a second control element 35 for the second operating mode. The first control element 30 can, for example, be in the form of a first button 60. The second control element 35 can, for example, be in the form of a second button 65. The third control element 85 can, for example, be in the form of a third button 70.

[0169] The first operating mode can be reactivated, adjusted in a variety of steps, and deactivated. The first operating mode can be activated and deactivated using the first control element 30 and adjusted in a variety of steps using the third control element 85. The second operating mode can be activated and deactivated using the second control element 35.

[0170] The HMI 10 also features a step indicator 40 for displaying the multiple adjustable steps for the first operating mode. Step indicator 40 is, for example, implemented as a three-digit 7-segment display. R. 417512

[0171] - 24 -

[0172] In this embodiment, an electronic angle setting can be activated and adjusted as the first operating mode using the HMI 10. The electronic angle setting can be activated by actuating the first control element 30. The first operating mode can be adjusted in a multitude of steps using the third control element 85. By way of example, a further third control element 90 is provided for adjusting the steps of the first operating mode. This further third control element 90 is, for example, designed in the form of a fourth button 75. Using the third control element 85 and the further third control element 90, the step setting for the first operating mode can be adjusted after activation. For example, the step can be increased using the third control element 85 and decreased using the further third control element 90.Switching up and down between the different levels using the third control element 85 and the further third control element 90 is done, for example, by simply pressing buttons 70 and 75.

[0173] In this embodiment, a workplace light 45 is additionally provided. The workplace light 45 can be activated and deactivated using the second control element 35. Activating and deactivating the workplace light 45 can be done, for example, by pressing the second button 65.

[0174] In other words, this embodiment provides a first control element 30 for activating or deactivating a first operating mode, whereby a third control element 85 and, optionally, a further third control element 90 allow for setting the different levels for the first operating mode. A second operating mode can be activated or deactivated using a second control element 35. Consequently, in this embodiment, it is possible to switch on or off work area lighting 45 using the second control element 35.

[0175] The first control element 30 and the second control element 35 can also be configured as indicator elements. Control elements 30, 35R. 417512

[0176] - 25 -

[0177] For this purpose, keys 60 and 65 are designed, for example, as illuminated buttons. When a corresponding operating mode is activated, keys 60 and 65 are illuminated to indicate that the corresponding operating mode is activated.

[0178] Furthermore, it is also conceivable to activate and deactivate a third operating mode for the hand-held machine tool 5 using the HMI 10.

[0179] The third operating mode can be activated, for example, by simultaneously pressing the first control element 30 and the second control element 35. For instance, pressing the first control element 30 and the second control element 35 simultaneously for three seconds activates the third operating mode, HMI-Lock. Pressing the first control element 30 and the second control element 35 simultaneously again for three seconds deactivates the HMI-Lock function.

[0180] Fig. 7 shows a hand-held machine tool 5 and an HMI 10 in a further embodiment.

[0181] The hand-held power tool 5 and the HMI 10 are essentially equivalent to the hand-held power tool 5 and the HMI 10 shown in Fig. 6.

[0182] The hand-held power tool 5, for example, has a trigger 15, a direction switch 20, and a power supply 25. The HMI 10 is again located above the power supply 25 on the hand-held power tool 5.

[0183] The HMI 10 has a first control element 30, a third control element 85, another third control element 90, and a second control element 35. The control elements 30, 35, 85, and 90 are, for example, again designed as buttons 60, 65, 70, and 75.

[0184] The hand-held power tool 5 is again operable in at least one operating mode and one operating mode. Additionally, it can be used in R. 417512.

[0185] - 26 -

[0186] It is intended that the hand-held power tool can be operated in a third operating mode.

[0187] The instructions for activating and deactivating the operating modes are analogous to those in Fig. 6. The instructions for setting the first operating mode are also analogous to those in Fig. 6. To avoid repetition, only the differences compared to the hand-held power tool 5 in Fig. 6 will be discussed.

[0188] In this embodiment, the hand-held power tool 5 features a two-digit 7-segment display as the step indicator 40 on the HMI 10. The hand-held power tool 5 can also feature an LED bar on the HMI 10 as the step indicator 40.

[0189] Fig. 8 schematically shows a method 300 for operating a hand-held power tool.

[0190] Method 300 is used to operate a hand-held power tool.

[0191] The hand-held power tool has a HMI for operation by a user, wherein the HMI has a first control element and a third control element for a first operating mode and a second control element for a second operating mode, wherein the HMI has a step display for displaying a plurality of adjustable steps for the first operating mode.

[0192] Procedure 300 comprises the following steps.

[0193] In a first process step 310, the first and / or second operating mode is activated, wherein the first operating mode is activated by pressing the first control element and the second operating mode is activated by pressing the second control element.

[0194] To activate the first and / or second operating mode 310, it may additionally be required that the respective assigned control element be actuated for a defined period of time. For example, R. 417512

[0195] - 27 -

[0196] Activation requires pressing the respective assigned control element for one or two seconds.

[0197] Additionally, a third operating mode may be provided for. Activation of the third operating mode is achieved by simultaneously and for a defined period of time pressing the first and second controls. For example, activation of the third operating mode may require simultaneous pressing of the first and second controls for one or two seconds.

[0198] In a second process step 320, a stage for the first operating mode is set, wherein the setting of the stage is carried out after the activation of the first operating mode and by actuating the third control element, whereby a set stage for the first operating mode is displayed via the stage indicator.

[0199] The 320 levels can be set by repeatedly pressing and / or by continuously pressing the third control element within a predefined time period.

[0200] The HMI can have a third control element. Setting the level to 320 for the first operating mode can be done using this third control element and the other third control element. For example, the level can be increased using the third control element and decreased using the other third control element.

[0201] In a third process step 330, the first and / or second operating mode is deactivated, wherein the first operating mode is deactivated by actuating the first control element and the second operating mode is deactivated by actuating the second control element.

[0202] To deactivate the first and / or second operating mode, it may additionally be required that the respective assigned control element be activated for a defined period of time. For example, R. 417512

[0203] - 28 -

[0204] To deactivate, the respective assigned control element must be pressed for one or two seconds.

[0205] Additionally, a third operating mode can be deactivated. Deactivating this third mode is achieved by simultaneously and for a defined period of time activating the first and second controls. For example, deactivating the third mode could be accomplished by simultaneously activating the first and second controls for one or two seconds.

[0206] The described method 300 can be used in particular for operating a hand-held power tool from Figures 6 and 7.

[0207] Fig. 9 shows a hand-held machine tool 5 and an HMI 10 in a further embodiment.

[0208] The hand-held power tool 5 can, for example, be configured as an impact wrench or as a rotary impact wrench. The hand-held power tool 5 can have a direction switch 20, a trigger 15, and a power supply 25. The HMI 10 is, for example, located in an area above the power supply 25 on the hand-held power tool 5.

[0209] In this embodiment, the HMI 10 has a first control element 30 and a second control element 35. The first control element 30 is, for example, configured as the first button 60. The second control element 35 is, for example, configured as the second button 65. The HMI 10 also has an operating mode indicator 95. The hand-held power tool 5 can be operated in at least one first and / or one second operating mode. The operating mode indicator 95 shows which of the operating modes is currently activated for the hand-held power tool 5 and which operating modes can be activated. In this example, the operating mode indicator 95 has six display options for different first and / or second operating modes. R. 417512

[0210] - 29 -

[0211] A first operating mode is again characterized by its adjustability in a multitude of steps. For this purpose, the HMI 10 features a step indicator 40 to display the multiple steps. In this embodiment, the step indicator 40 is designed as an illuminated LED bar. As an example, five illuminated rectangular LED elements are arranged on the HMI 10.

[0212] In contrast to the previous embodiments, the first control element 30 serves to select an operating mode via the operating mode indicator 95. Thus, by repeatedly pressing the first control element 30, the user can cycle through the different operating modes displayed in the operating mode indicator 95. The previously selected operating mode can be activated using the second control element 35.

[0213] If the activated operating mode is a second operating mode, the hand-held power tool can be operated in that second mode after activation. For example, the "Workplace Lighting 45 On" function can be activated as a second operating mode.

[0214] If the activated operating mode is the first operating mode, the stage indicator 40 is initially activated. The different stages can then be cycled through using the first control element 30. The selected stage for the first operating mode can then be accepted using the second control element 35. After selecting and setting the first operating mode, the hand-held power tool can be operated in the chosen mode.

[0215] In other words, in this embodiment the first control element 30 serves as a kind of selection element and the second control element 35 as a kind of confirmation element.

[0216] The first control element 30 allows selection of an operating mode and / or step setting, and the second control element 35 confirms the previously selected operating mode and / or step setting. R. 417512

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[0218] Furthermore, it is conceivable that the hand-held power tool 5 can be operated in a third operating mode.

[0219] The third operating mode can be activated, for example, by simultaneously pressing the first control element 30 and the second control element 35. For instance, pressing the first control element 30 and the second control element 35 simultaneously for three seconds activates the third operating mode, HMI-Lock. Pressing the first control element 30 and the second control element 35 simultaneously again for three seconds deactivates the HMI-Lock function.

[0220] Figs. 10 and 11 show a hand-held machine tool 5 and an HMI 10 in further embodiments.

[0221] The hand-held power tools 5 and the HMIs 10 from Figures 10 and 11 essentially correspond to the embodiment shown in Figure 9.

[0222] To avoid repetition, only the differences to the embodiment shown in Figure 9 will be discussed below.

[0223] A key difference in the embodiment shown in Fig. 10 is that the HMI 10 features a 7-segment display as the stage indicator 40. The adjustable stages for a first operating mode can again be displayed using the 7-segment display.

[0224] A key difference in the embodiment shown in Fig. 11 is that the HMI 10 features an LED bar with dot LEDs as a stage indicator 40. These dot LEDs can again be used to display the adjustable stages for a first operating mode. For example, ten dot LEDs are provided for the adjustable stages of the hand-held power tool 10.

[0225] Although the present invention has been described with reference to specific embodiments, a person skilled in the art cannot, or can only, understand it from the above. R. 417512

[0226] - 31 -

[0227] to realize partially disclosed embodiments without deviating from the core of the invention.

Claims

R. 417512 - 32 - Claims 1. Hand-held power tool (5) comprising, a Human-Machine Interface (HMI 10), wherein the hand-held power tool (5) is operable in at least a first operating mode and / or a second operating mode, wherein the HMI (10) has a first control element (30) and a third control element (85) for the first operating mode and a second control element (35) for the second operating mode, where the first operating mode can be activated, adjusted in a variety of levels and deactivated, wherein the first operating mode can be activated and deactivated using the first control element (30), the first operating mode can be adjusted in stages using the third control element (85), wherein the second operating mode can be activated and deactivated using the second control element (35), wherein the HMI (10) has a step display (40) to display the plurality of adjustable steps for the first operating mode.

2. Hand-held power tool (5) according to claim 1, wherein the activation and deactivation of the operating modes can be carried out by actuating the respective associated control element (30, 35), wherein the activation and deactivation of the operating modes can be carried out by a time-defined actuating of the respective associated control element (30, 35).

3. Hand-held power tool (5) according to claim 1 or 2, where the setting of the multiple levels for the first operating mode can be carried out after activation via the first control element (30) and by actuating the third control element (85), R. 417512 - 33 - wherein the levels can be set by repeatedly pressing the third control element (85) and / or by continuously pressing the third control element (85) within a predefinable time period.

4. Hand-held power tool (5) according to one of the preceding claims, wherein the HMI (10) has a further third control element (90) for setting the first operating mode, the level for the first operating mode can be increased using the third control element (85), and wherein the level for the first operating mode can be reduced by means of the further third control element (90).

5. Hand-held power tool (5) according to one of the preceding claims, wherein the first operating element (30) and the second operating element (35) are additionally designed as display elements, wherein the control elements (30, 35) are designed to indicate to a user whether the operating mode assigned to the control elements (30, 35) is activated or deactivated, wherein the control elements (30, 35) are designed to be illuminated for this purpose, and are provided in particular in the form of buttons (60, 65).

6. Hand-held power tool (5) according to one of the preceding claims, wherein the step indicator (40) is designed in the form of a 7-segment display, in particular in the form of a two-digit 7-segment display.

7. Hand-held power tool (5) according to one of claims 1 to 5, wherein the step indicator (40) is designed as an LED bar in the form of a large number of illuminateable LED elements.

8. Hand-held power tool (5) according to one of the preceding claims, wherein the HMI (10) has a work area light (45), wherein the work area light (45) can be activated and deactivated as a second operating mode using the second control element (35).

9. Hand-held power tool (5) according to one of the preceding claims, R. 417512 - 34 - wherein the hand-held power tool (5) can be operated in a third operating mode, wherein the third operating mode can be activated and deactivated using the first (30) and the second control element (35), The third operating mode can be activated and deactivated by simultaneously and in a time-defined manner pressing the first control element (30) and the second control element (35).

10. Method (300) for operating a hand-held power tool (5), in particular a hand-held power tool (5) according to one of the preceding claims, wherein the hand-held power tool (5) has an HMI (10) for operation by a user, wherein the HMI (10) has a first control element (30) and a third control element (85) for a first operating mode and a second control element (35) for a second operating mode, wherein the HMI (10) has a level display (40) for displaying a plurality of adjustable levels for the first operating mode, with the following steps: - Activating (310) the first and / or second operating mode, wherein the first operating mode is activated by pressing the first control (30) and the second operating mode is activated by pressing the second control (35), Setting (320) a level for the first operating mode, wherein the setting of the level is carried out after the activation of the first operating mode and by actuating the third control element (85), wherein a set level for the first operating mode is shown via the level indicator (40), Deactivating (330) the first and / or second operating mode, wherein the first operating mode is deactivated by pressing the first control (30) and the second operating mode is deactivated by pressing the second control (35).

11. Method (300) according to claim 10, R. 417512 - 35 - wherein the activation (310) and deactivation (330) of the first and / or second operating mode is carried out by means of a time-defined actuation of the respective associated control element (30, 35).

12. Method (300) according to claim 10 or 11, wherein the setting of the levels (320) is carried out by multiple actuations and / or by a continuous actuation of the third control element (85) within a predefinable time period.

13. Method (300) according to any one of the preceding claims, wherein the HMI (10) has a further third control element (90), wherein the setting of the level (320) for the first operating mode is performed using the third control element (85) and the further third control element (90).

14. Method (300) according to any one of the preceding claims, wherein a third operating mode is activated and deactivated by actuating the first (30) and second control element (35), where the activation (310) and deactivation (330) of the third operating mode is carried out by simultaneously and in a time-defined manner pressing the first (30) and second control element (35).

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