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公开(公告)号：US20240123593A1
公开(公告)日：2024-04-18
申请号：US18277404
申请日：2022-03-02
发明人： Christian SATTLER , Michael WIERER
IPC分类号： B25F5/00
摘要： A method for operating a power tool is provided. The power tool has a tool, in particular a drill bit, and a motor, while the motor is a brushless electric motor. In the power tool there is implemented a rotational speed graduation of an electronic form, with which a circumferential speed at the tool of the power tool can be kept essentially constant, while a rotational speed spread DELTA_n of greater than 2 is achieved by the design, dimensioning and/or control of the motor. Also provided is a tool device, for example a core drilling device, with which the proposed method can be carried out. An essential advantage of the invention is that the rotational speed spread DELTA_n of greater than 2 is achieved without a mechanical transmission on the power tool. Instead, a rotational speed graduation of an electronic form is used in the present invention.
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公开(公告)号：US20240183489A1
公开(公告)日：2024-06-06
申请号：US18286043
申请日：2022-04-04
发明人： Simon KÄSMANN , Guenther VEIK , Roland SCHAER , Michael LANZINGER , Antonios DRAGANIS , Christian METZLER , Michael WIERER , Dragan STEVIC
CPC分类号： F16M13/04 , B25J19/0008
摘要： A system for counterbalancing a weight force of an object is provided. The object is fastenable to a traction cable, wherein the traction cable is guided in or on a cantilever in the direction of a back structure of the system, wherein a second end of the cantilever can be accommodated by a back structure, and the system can be carried by a user of the system via the back structure. The system is characterized by an electronic module which includes an apparatus for winding up the traction cable and a motor for driving the apparatus for winding up the traction cable, wherein the system is configured to determine a counterforce for the weight force of the object and to transmit same to the object. It is particularly preferred for the purposes of the invention that a control device of the system is configured to adjust a counterforce with respect to the weight force of the object. The system can preferably be configured to create a force balance between the weight force of the object on the one hand and the counterforce on the other hand. An electronic module for counterbalancing a weight force of an object, and to a kit which includes such an electronic module, a traction cable, and at least one deflection pulley. With the invention, the weight force of an object, which can be fastened to a traction cable of a counterbalancing system, can be compensated for particularly well and in a way that is easy on the back.
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公开(公告)号：US20220324092A1
公开(公告)日：2022-10-13
申请号：US17641537
申请日：2020-03-09
发明人： Roland SCHAER , Michael WIERER , Manuel KNOBEL
摘要： A method for operating a hand-guided machine tool. The method contains detecting at least one linear acceleration value by means of the at least one sensor apparatus (6); subtracting the gravitational acceleration from the at least one linear acceleration value to form an adjusted linear acceleration value; integrating the adjusted linear acceleration value into a speed value; integrating the speed value into a distance value; multiplying the speed value by a time constant to form at least one further distance value; adding the distance value to the further distance value to form at least one total distance value; filtering at least one of the linear acceleration values and/or at least one of the speed values; comparing the total distance value with a defined limit value; and initiating a predefined action when the total distance value exceeds the defined limit value. A hand-held machine tool for carrying out such a method is also described.
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公开(公告)号：US20180304453A1
公开(公告)日：2018-10-25
申请号：US15769780
申请日：2016-11-15
发明人： Roland SCHAER , Thomas KINKELDEI , Peter HRICKO , Manuel GUT , Michael WIERER
CPC分类号： B25F5/001 , B23B45/02 , B25D11/00 , B25D2211/068 , B25D2250/201 , B25D2250/221 , B25F5/00
摘要： A control method for a power tool for rotary tools provides the following: A tool holder is rotated continuously in a forward direction about a working axis by a rotary drive when an operating switch is actuated. The continuous rotation in the forward direction is interrupted by a protective process when a protective device senses blocking of the tool holder. During the protective process, one or more cycles are executed, in which the rotary drive is actuated successively in accordance with an unimpeded rotary movement in a reverse direction and in accordance with an unimpeded rotary movement in the forward direction. The rotary drive is supplied with a first amount of energy for the rotary movement in the reverse direction and with a second amount of energy for the rotary movement in the forward direction. The first amount of energy is smaller than the second amount of energy.
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5.发明公开公开(公告)号：US20240189923A1
公开(公告)日：2024-06-13
申请号：US18286057
申请日：2022-04-04
发明人： Roland SCHAER , Michael WIERER , Dragan STEVIC , Georg BRAML , Christian METZLER , Antonios DRAGANIS , Guenther VEIK
CPC分类号： B23B35/00 , B66C13/085
摘要： Methods for counterbalancing a weight force of an object fastenable to a traction cable. A system is configured to carry out a counterbalancing operation with respect to the weight force of the object. This counterbalancing operation can be performed in that a rotational speed of the motor and/or a derivation of the rotational speed of the motor is determined, wherein a current setpoint value can be stored as a controlled variable in the system. The rotational speed of the motor or a derivation thereof corresponds to a weight force of the object. Alternatively, a current value required for maintaining the first position of the object or a motor torque required for this purpose can be stored in the system and the weight force of the object can be counterbalanced using the previously stored current values or torques. In further aspects, the invention relates to a system and to an electronic module.
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公开(公告)号：US20240009822A1
公开(公告)日：2024-01-11
申请号：US18039558
申请日：2021-11-16
发明人： Maximilian KNYRIM , Michael WIERER
IPC分类号： B25D11/12
CPC分类号： B25D11/125 , B25D2211/003 , B25D2250/281 , B25D2250/245 , B25D16/00
摘要： Power tool, in particular a hammer drill, including a housing, a tool fitting for receiving and holding a tool, an impact device for producing and transmitting impact pulses to the tool, and a rotation device for producing and transmitting a torque to the tool, wherein a working axis passing through the impact device is provided. The power tool includes a first drive unit having a first axis of rotation for driving the rotation device and a second drive unit having a second axis of rotation for driving the impact device, wherein the first and second drive units are arranged in such a way relative to one another in the housing that the first axis of rotation of the first drive unit is arranged at a first angle to the second axis of rotation of the second drive unit and at a second angle to the working axis.
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公开(公告)号：US20240278407A1
公开(公告)日：2024-08-22
申请号：US18560789
申请日：2022-05-24
发明人： Michael WIERER , Manuel GUT
IPC分类号： B25F5/00
CPC分类号： B25F5/001
摘要： A power tool having a tool and a motor, with the motor of the power tool being operated in a speed range from 2,000 to 30,000 rpm and with an inertia of the motor lying in a range from 20·10−6 to 750·10−6 kg·m2. In a second aspect, the invention relates to a method for operating a power tool which is operated in a speed range from 2,000 to 30,000 rpm, with an inertia of the motor lying in a range from 20·10−6 to 750·10−6 kg·m2. By selecting and specifying a set of parameters which describe characteristics of the motor of the power tool, the power tool can be designed and operated in such a way that a mechanical slip clutch can be dispensed with. The motor parameters “speed” and “inertia” are selected in particular so that a maximum torque in a transmission of the power tool is always below a specified upper limit.
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公开(公告)号：US20230021949A1
公开(公告)日：2023-01-26
申请号：US17760675
申请日：2020-10-07
发明人： Dario BRALLA , Albert BINDER , Donato CLAUSI , Michael WIERER , Serhey KHANDOZHKO , Nikolaus HANNOSCHOECK
摘要： A control method for a hand-held power tool comprises: of driving a striking mechanism with an electric motor, wherein an exciter piston of the pneumatic striking mechanism is driven periodically by the electric motor and a striking piston of the striking mechanism is coupled to the exciter piston via a pneumatic chamber, detecting the acceleration of a machine housing along a striking direction of the striking piston in different phases of the movement of the exciter piston; and controlling a rotational speed of an electric motor according to the detected acceleration in the different phases.
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公开(公告)号：US20170348844A1
公开(公告)日：2017-12-07
申请号：US15528280
申请日：2015-11-17
发明人： Manuel GUT , Roland SCHAER , Michael WIERER , Thomas KINKELDEI
IPC分类号： B25F5/02
摘要： A control method is provided for a hand-held power tool (1), which includes a motor (5) for rotationally driving a tool holder (2) about a working axis (12), including the following steps: detecting a rotary motion of the hand-held power tool (1) about the working axis (12); detecting a rotary or pivoting motion about a transverse axis (18) extending transversely to the working axis (12); triggering a safety function for reducing the torque output of the motor (5) when the rotary motion about the working axis (12) exceeds a limiting value, and suppressing the safety function when the rotary or pivoting motion about the transverse axis (18) is greater than a threshold value.
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