Patent Application
20160129578
Manual power tool operating devices having at least one control and/or regulating unit for driving a manual power tool drive unit and at least one operating mode selection element for adjusting various operating modes have already been proposed.
The invention is based on a manual power tool operating device having at least one control and/or regulating unit for driving a manual power tool drive unit and having at least one operating mode selection element for adjusting various operating modes.
It is proposed that the control and/or regulating unit should comprise at least one operating program which is intended, as a function of at least one signal of the operating mode selection element, to modify/adjust at least two operating parameters characterizing at least one operating mode. A “control and/or regulating unit” is intended, in particular, to mean a unit with at least one set of control electronics. “Control electronics” are intended in particular to mean a unit having a processor unit and having a memory unit, as well as having an operating program stored in the memory unit. A “manual power tool drive unit” is in this case intended, in particular, to mean a drive unit, preferably a motor, in particular an electric motor, which drives a tool holder of the manual power tool. And “operating mode selection element” is in this case intended, in particular, to mean an element by means of which a defined operating mode of the manual power tool can be selected. In this case, the operating mode selection element is to be distinguished in particular from an operating element of the manual power tool, by means of which the manual power tool can be switched on and off. The operating mode selection element is in this case preferably configured as an element which can be adjusted mechanically by a user in order to adjust an operating mode. In principle, however, it is also conceivable for the operating mode selection element to be configured as an operating program of the control and/or regulating unit, and for the operating mode to be adjusted/modified for example with the aid of sensor data, for example tool identification. A “signal of the operating mode selection element” is in this case intended, in particular, to mean an electric and/or electronic signal, which is output by the operating mode selection element and is interpreted accordingly by the control and/or regulating unit in order to adjust an operating mode. An “operating mode” is in this case intended, in particular, to mean a mode in which the manual power tool can be operated for particular tasks, an operating mode being characterized by a plurality of operating parameters. In this case, the operating modes may be defined by merely two operating parameters or by more than 3 operating parameters. The manual power tool is in this case preferably adjusted optimally in an operating mode for a task desired by the user, for example “knocking out tiles” or “drilling into steel”. “In order to adjust an operating mode” is in this case intended, in particular, to mean that the operating mode selection element is intended to adjust an operating mode, or that an operating mode can be adjusted by means of the operating mode selection element. In this case, the operating mode selection element is configured as a control element, by means of which a user can select a corresponding operating mode. In principle, it is also conceivable for the operating mode selection element to be configured as an operating program stored in the control and/or regulating unit which selects an operating mode automatically, without intervention by a user, with the aid of input signals, for example from sensors, such as in particular tool holder sensors which identify a tool clamped in a tool holder of the manual power tool. An “operating parameter” is in this case intended to mean a parameter describing a working intensity of the manual power tool, in particular the rotation speed and/or a profile of the rotation speed of the manual power tool drive device. “Intended” is intended, in particular, to mean specially programmed, configured and/or equipped. That an object is intended for a particular function is intended, in particular, to mean that the object fulfills and/or executes this particular function in at least one application and/or operating state. “Modifying/adjusting operating parameters” is in this case intended, in particular, to mean that an operating parameter is set to an optimal value or profile for the corresponding operating mode when a particular operating mode is selected by means of the operating mode selection element. In this way, various operating modes can be adjusted particularly straightforwardly and advantageously by means of an operating mode selection element. In particular, it is straightforward for a user to adjust the manual power tool optimally for a desired task, without having to know the effect of the various operating parameters on the performance of the manual power tool for the desired task.
It is furthermore proposed that one of the operating parameters should be configured as an idling rotation speed. An “idling rotation speed” is in this case intended, in particular, to mean a rotation speed which the manual power tool drive unit has in an operating state in which a user has set the manual power tool drive unit in operation by means of an operating element of the manual power tool, but the manual power tool is not yet applied, i.e. a tool fitted in the manual power tool has not yet been placed at the corresponding position for processing. In this way, the idling rotation speed can advantageously be adjusted for various operating modes.
It is furthermore proposed that one of the operating parameters should be configured as a working rotation speed. A “working rotation speed” is in this case intended, in particular, to mean a rotation speed which the manual power tool drive unit has in an operating state in which a user has set the manual power tool drive unit in operation by means of an operating element of the manual power tool, and the manual power tool is applied, i.e. the tool fitted in the manual power tool has been placed at the corresponding position for processing and is in use. In this way, the working rotation speed can advantageously be adjusted for various operating modes.
It is also proposed that one of the operating parameters should be configured as a startup ramp. A “startup ramp” is in this case intended, in particular, to mean a profile of the rotation speed of the manual power tool drive unit between being at rest and the idling rotation speed. In this way, a profile between being at rest and the idling rotation speed of the manual power tool drive unit can advantageously be adjusted for various operating modes.
It is furthermore proposed that one of the operating parameters should be configured as an increasing ramp. An “increasing ramp” is in this case intended, in particular, to mean a profile of the rotation speed of the manual power tool drive unit between the idling rotation speed and the working rotation speed. In this way, a profile between the idling rotation speed and the drive rotation speed of the manual power tool drive unit can advantageously be adjusted for various operating modes.
It is furthermore proposed that one of the operating parameters should be configured as a decreasing ramp. A “decreasing ramp” is in this case intended, in particular to mean a profile of the rotation speed of the manual power tool drive unit between the working rotation speed and the idling rotation speed. In this way, a profile between the drive rotation speed and the idling rotation speed of the manual power tool drive unit can advantageously be adjusted for various operating modes.
It is also proposed that least at one parameter set should be stored in the control and/or regulating unit for each operating mode. A “parameter set” is in this case intended, in particular, to mean a value stored in the memory unit of the control and/or regulating unit for an operating mode. In this case, a corresponding value or a corresponding profile is stored in a parameter set for an operating mode for all operating parameters characterizing the corresponding operating mode. In this way, the operating parameters for an operating mode can be stored in the control and/or regulating unit in such a way that they can be called up particularly straightforwardly and advantageously.
It is furthermore proposed that a parameter set should have a value for each operating parameter characterizing the corresponding operating mode. “Having a value” is in this case intended, in particular, to mean that data for each operating parameter characterizing the corresponding operating mode are stored in the corresponding parameter set in the memory unit of the control and/or regulating unit. In this way, a parameter set can characterize an operating mode particularly straightforwardly and advantageously.
The manual power tool operating device according to the invention is in this case not intended to be restricted to the application and embodiment described above. In particular, the manual power tool operating device may have a number other than the number of individual elements, components and units mentioned here in order to fulfill a functionality described here.
Further advantages may be found in the following description of the drawings. An exemplary embodiment of the invention is represented in the drawings. The drawing, the description and the claims contain numerous features in combination. The person skilled in the art will also expediently consider the features individually and combine them to form other appropriate combinations.
The manual power tool operating device comprises an operating mode selection element 14. By means of the operating mode selection element 14, various operating modes can be adjusted by a user. The operating modes respectively represent predefined working procedures of the manual power tool 20. The various operating modes may in this case be “knocking out tiles”, “breaking concrete”, “flat chiseling”, “chiseling on hollow bricks”, “drilling into reinforced concrete”, “drilling into bricks”, “drilling into aerated concrete” or designated by means of a different descriptive title. In this case, the operating modes are preferably designated in such a way that their designation descriptively matches the task preferably carried out in the operating mode. In principle, other designations for the operating modes may naturally also be envisioned, for example “clean”, “fast”, “maximum removal” or alternatively other designations which seem appropriate to the person skilled in the art. The operating mode selection element 14 is in this case configured as an adjustment wheel. The operating mode selection element 14 configured as an adjustment wheel is rotatable and has a plurality of switching positions. Each switching position of the adjustment wheel is assigned an operating mode. The operating mode selection element 14 outputs a signal according to the position of the operating mode selection element 14. The signal output by the operating mode selection element 14 is in this case configured as an electrical signal, which is respectively output by the operating mode selection element 14 when changing from one switching position to another switching position. In principle, it is also conceivable for the operating mode selection element 14 to output a different signal which seems appropriate to the person skilled in the art, or for the operating mode selection element 14 to model a signal fed into the operating mode selection element 14 differently according to the switching position. In this way, the operating mode selection element 14 outputs a different signal according to the switching position. In order to signal the operating mode which is adjusted by means of the operating mode selection element 14, the manual power tool operating device has an output unit 34. The output unit outputs a signal to a user, by means of which he can identify which operating mode is selected by means of the operating mode selection element 14. The output unit 34 is in this case configured as a visual output unit. The output unit 34 is in this case formed by symbols 36 arranged around the operating mode selection element 14 configured as an adjustment wheel and an arrow arranged on the operating mode selection element 14 configured as an adjustment wheel; in a switching position in which a particular operating mode is switched on, the arrow 38 points in the direction of the symbol 36 that is assigned to the corresponding operating mode.
The operating modes are respectively characterized by a plurality of operating parameters. In this case, an operating mode may be characterized by merely two operating parameters or more than two operating parameters. A first operating parameter is in this case configured as an idling rotation speed 16. The first operating parameter, configured as an idling rotation speed 16, in this case indicates a rotation speed of the manual power tool drive unit 12 which the manual power tool drive unit 12 has in an operating state in which the manual power tool 20 is actuated by the user by means of the operating element 26 but the tool 32 is not yet in a working position. The second operating parameter is configured as a working rotation speed 18. The second operating parameter, configured as a working rotation speed 18, in this case indicates a rotation speed of the manual power tool drive unit 12 which the manual power tool drive unit 12 has in an operating state in which the manual power tool 20 is actuated by the user by means of the operating element 26 and the tool 32 is in a working position.
The third operating parameter is configured as a startup ramp. The third operating parameter, configured as a startup ramp, indicates a profile of the rotation speed of the manual power tool drive unit 12 between the zero rotation speed, i.e. the manual power tool drive unit 12 being stationary, and the idling rotation speed 16 of the manual power tool drive unit 12. By means of the profile indicated by the third operating parameter, configured as a startup ramp, when the operating element 26 is actuated by a user, the manual power tool drive unit 12 increases the rotation speed of the manual power tool drive unit 12 from 0 to the idling rotation speed 16. A plurality of profiles for the third operating parameter, configured as a startup ramp, are in this case stored in the control and regulating unit 10. Six profiles of the startup ramp are in this case stored in the control and regulating unit 10.
As a second profile, the startup ramp b 46 is stored, which describes a gentle startup of the manual power tool drive unit 12, i.e. a slower increase in the rotation speed of the manual power tool drive unit 12 from being stationary to the idling rotation speed 16. As a third profile, the startup ramp c 48 is stored, which describes an increase of the rotation speed of the manual power tool drive unit 12 which is as fast as possible from being stationary to the idling rotation speed 16. In this case, the profile of the startup ramp c 48 has an overshoot, so that the rotation speed of the manual power tool drive unit 12 overshoots by 20% beyond the idling rotation speed 16 before the idling rotation speed 16 is finally reached. In principle, it is in this case also conceivable for the profile of the startup ramp c 48 to overshoot beyond the idling rotation speed 16 by a different value. Furthermore,
The fourth operating parameter is configured as an increasing ramp. The fourth operating parameter, configured as an increasing ramp, indicates a profile of the rotation speed of the manual power tool drive unit 12 between the idling rotation speed 16 and the working rotation speed 18 of the manual power tool drive unit 12. In this case, the profiles of the operating parameter configured as an increasing ramp are configured essentially equivalently to the profiles of the operating parameters configured as startup ramps. A plurality of profiles of the fourth operating parameter, configured as an increasing ramp, are in this case stored in the control and regulating unit 10. Six profiles of the increasing ramp are in this case stored in the control and regulating unit 10.
The fifth operating parameter is configured as a decreasing ramp. The fifth operating parameter, configured as a decreasing ramp, indicates a profile of the rotation speed of the manual power tool drive unit 12 from the working rotation speed 18 to the idling rotation speed 16 of the manual power tool drive unit 12. A plurality of profiles of the fifth operating parameter, configured as a decreasing ramp, are stored in the control and regulating unit 10. Six profiles of the decreasing ramp are in this case stored in the control and regulating unit 10.
The control and regulating unit 10 has an operating program. The operating program is in this case stored in the memory unit of the control and regulating unit 10. The operating program is intended to adjust or modify at least two operating parameters characterizing an operating mode as a function of the signal of the operating mode selection element 14. In this case, according to the signal of the operating mode selection element 14, the control and regulating unit 10 alters two, three, four or all five operating parameters which define an operating mode. In principle, it is naturally also conceivable for an operating mode to be defined by further operating parameters, i.e. more than five operating parameters, and for the control and regulating unit 10 therefore to alter or adjust more than five operating parameters when a user selects an operating mode by means of the operating mode selection element 14. In principle, it is also conceivable for one or more of the operating parameters to be set at a defined value for all operating modes, i.e. for it to remain unchanged when switching to another operating mode. When a particular operating mode is adjusted by means of the operating mode selection element 14, the control and regulating unit 10 adjusts a defined value for the first operating parameter, configured as an idling rotation speed 16. When a particular operating mode is adjusted by means of the operating mode selection element 14, the control and regulating unit 10 adjusts a defined value for the second operating parameter, configured as a working rotation speed 18. When a particular operating mode is adjusted by means of the operating mode selection element 14, the control and regulating unit 10 adjusts a particular profile for the third operating parameter, configured as a startup ramp. When a particular operating mode is adjusted by means of the operating mode selection element 14, the control and regulating unit 10 adjusts a particular profile for the fourth operating parameter, configured as an increasing ramp. When a particular operating mode is adjusted by means of the operating mode selection element 14, the control and regulating unit 10 adjusts a particular profile for the fifth operating parameter, configured as a decreasing ramp.
Stored in the memory unit of the control and regulating unit 10 for the operating modes, which can be adjusted by means of the operating mode selection unit 14, there are parameter sets which respectively assign a particular value of the operating parameters to each operating mode. In this case, a parameter set respectively assigns a value or a profile in a particular operating mode to the operating parameters characterizing the operating mode.
The parameter set for the operating mode “knocking out tiles” in this case adjusts the first parameter, configured as an idling rotation speed 16, to a rotation speed of 2000 rpm. Furthermore, the parameter set for the operating mode “knocking out tiles” adjusts the second operating parameter configured as a drive rotation speed to a rotation speed of 2500 rpm. For the operating mode “knocking out tiles”, the parameter set adjusts the third operating parameter, configured as a startup ramp, to the startup ramp a 44. For the operating mode “knocking out tiles”, the parameter set adjusts the fourth operating parameter, configured as an increasing ramp, to the increasing ramp c 64. For the operating mode “knocking out tiles”, the parameter set adjusts the fifth operating parameter, configured as a decreasing ramp, to the decreasing ramp c 84. For the operating mode “breaking concrete”, the parameter set adjusts the first operating parameter, configured as an idling rotation speed 16, to a rotation speed of 3000 rpm, the second operating parameter, configured as a drive rotation speed, to a rotation speed of 3400 rpm, the third operating parameter, configured as a startup ramp, to the startup ramp a 44, the fourth operating parameter, configured as an increasing ramp, to the increasing ramp a 60, and the fifth operating parameter, configured as a decreasing ramp, to the decreasing ramp a 80. The table below shows the parameter sets described above and further parameter sets which are stored in the control and regulating unit 10. The parameter sets indicated in the table, and therefore the operating modes of the manual power tool 20 which can be adjusted by the operating mode selection element 14, are in this case indicated merely by way of example. In principle, any other operating modes, and therefore parameter sets stored therefor on the control and regulating unit 10, which a person skilled in the art considers as appropriate, may be envisioned. In this case, it is likewise not necessary that the manual power tool 20 must be able to carry out all operating modes indicated in the table, and therefore that all these parameter sets should be stored in the control and regulating unit 10.
| Number | Date | Country | Kind |
|---|---|---|---|
| 10 2013 212 546.1 | Jun 2013 | DE | national |
| Filing Document | Filing Date | Country | Kind |
|---|---|---|---|
| PCT/EP2014/062081 | 6/11/2014 | WO | 00 |
