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Match Document Document Title
US20140321930 Hand Tool Operating Unit  
A hand tool operating unit includes at least one operating member, and an electronic operating unit that has a position sensor configured to ascertain a position of the operating member. The hand...
US20140048298 HAND-HELD POWER TOOL, IN PARTICULAR BATTERY-POWERED SCREWDRIVER  
A hand-held power tool includes a drive device in a housing. The drive device is intended to drive a tool accommodated in a tool-accommodating region. An adjusting motion of the hand-held power...
US20110056715 REDUNDANT OVERSPEED PROTECTION FOR POWER TOOLS  
An overspeed protection subsystem is provided for a power tool having an electric motor. The overspeed protection subsystem is comprised of: a motor switch coupled in series with the motor; a...
US20150041163 Impact Tools  
Illustrative embodiments of impact tools are disclosed. In at least one illustrative embodiment, an impact tool may comprise an impact mechanism including a hammer and an anvil. The hammer may be...
US20130037288 Control Scheme For Detecting And Preventing Torque Conditions In A Power Tool  
A control scheme is provided for a power tool having a rotary shaft. The control scheme includes: monitoring rotational motion of the tool generally about a longitudinal axis of the shaft;...
US20120279743 ELECTRIC POWER TOOL  
An electric power tool includes an electric motor, a rotation speed detection device, a brake device, and a rotation speed-based activation device. The electric motor generates a driving force to...
US20050247459 Method for operating a disengagable screwdriver, and a disengagable screwdriver  
The present invention is based on a method for operating a disengagable screwdriver (10) having a drive motor (12) and a shut-off device (20), with which a driving of a screw tool (16) is halted...
US20090151968 Device for the High-Speed Drilling of Printed Circuit Boards  
A device for the high-speed drilling of boards for printed circuits and the like comprising a support (2), a drill head (11) with associated mandrel (12), and a device for locking and driving a...
US20110067534 Ratchet wrench  
A ratchet wrench has a handle, a transmitting device, a torque adjusting device and a ratchet head. The transmitting device is connected to the handle and has a barrel, a transmitting seat and a...
US20130333910 IMPACT TOOL  
According to one embodiment, an impact tool includes: a motor; and a hammer that is connected to the motor and that has a striking-side surface; and an anvil that is journalled to be rotatable...
US20150034348 ELECTRIC POWER TOOL  
There is provided an electric power tool having a plurality of operation modes with different rotation speeds at least in a predetermined load range. The electric power tool is capable of...
US20110186319 SAFETY DEVICE FOR PORTABLE TOOLS WITH A HEAT ENGINE, CAPABLE OF STOPPING THE OPERATION THEREOF AFTER SUDDEN, VIOLENT MOVEMENTS  
The invention relates to a safety device for portable tool with a heat engine that is capable of stopping, almost instantly, the operation of said tool after unexpected, sudden, and violent...
US20140196920 POWER TOOL HAVING IMPROVED OPERABILITY  
A power tool includes: a drive unit for a tool; an operating device for activating the power tool; a measuring device for measuring a motion of the power tool; and a filter for filtering at least...
US20110203821 POWER SCREWDRIVER HAVING ROTARY INPUT CONTROL  
A power tool includes an output shaft configured to rotate about a longitudinal axis, a motor drivably connected to the output shaft to impart rotary motions thereto, and a rotational motion...
US20140166323 Kickback Reduction for Power Tools and Machines  
An apparatus and methods are described for protecting an operator from sudden, unexpected or dangerous movement of powered hand held tools and the like. A set of parameters for safe operation of...
US20110315417 ROTARY IMPACT TOOL  
A rotary impact tool includes: a hammer rotating by receiving a rotational force of a motor; an anvil rotating by receiving a rotational force of the hammer; and an end tool attached to the anvil,...
US20150231771 Power Tool  
A power tool includes a housing, a motor, a hammer, an anvil, a detecting unit, and a controller. The motor is accommodated in the housing. The hammer is configured to be rotated by the motor in a...
US20070261868 Magnetic torque-limiting device and method  
In a torque-limiting device, a first end engages a fastener, a second end receives an applied torque, and a magnetic torque limiter transmits the applied torque from the second end to the first...
US20050263305 Rotary impact tool  
A rotary impact tool can be used continuously for fastening a plurality of fastening members such as screws, bolts or nuts in tight fastening mode. The rotary impact tool comprises a rotary...
US20100101381 POWER SCREWDRIVER  
The invention relates to a power screwdriver (10) comprising a motor (12) and a control circuit (22) which switches the motor (12) off by means of a switch-off signal (s_Stop) when it reaches a...
US20110147029 Hand-guided power tool having a torque coupling  
A hand-guided power tool according to the invention, has a torque coupling, and a planetary gear disposed in a gearbox for transmitting a torque, generated by a drive motor, to a drive shaft. The...
US20070193758 Air driver device  
Provide an air driver device which is simple in construction and easily realizable in compact size, and has excellent durability. In an air driver device designed to shut off the supply of...
US20120097411 METHOD FOR MONITORING ROTARY SHAFT ROTATION SPEED FLUCTUATION IN MACHINE TOOL, MONITOR APPARATUS, AND MACHINE TOOL  
In suppressing chatter vibration of a rotary shaft in a machine tool by fluctuating rotation speed of the rotary shaft, easy setting of a fluctuation parameter is realized. In a monitor apparatus...
US20130180748 PNEUMATIC TORQUE IMPULSE WRENCH WITH STEPPED SHUT-OFF FUNCTION  
A pneumatic torque impulse wrench comprises a housing (10), a motor (15), a hydraulic impulse unit (20) including an inertia drive member (21) and intermittently coupling the motor (15) to an...
US20110180290 ELECTRICAL POWER TOOL  
An electrical power tool may include an electric motor, a speed change device, and a battery pack. The speed change device is capable of changing a reduction ratio thereof and capable of...
US20110180284 SAFETY MECHANISM FOR A ROTARY HAMMER  
An improved method is provided for controlling a power tool having a rotary shaft. The method includes: disposing an inertial mass in a housing of the power tool, such that the inertial mass is...
US20110284256 Power Tool  
A power tool has a motor, a power supply unit, a trigger unit, a control unit, and a motor load detection unit. The power supply unit supplies power to the motor. The trigger unit causes the power...
US20140216773 ELECTRIC MACHINE TOOL AND METHOD FOR CONTROLLING THE ELECTRIC MACHINE TOOL  
In a method for controlling an electric machine tool having an electric motor for driving a rotating insertion tool, the electric machine tool is operated in one of multiple operating modes, and...
US20080202783 Method for controlling a linear motor for driving a striking mechanism  
A method of controlling a single-phase linear motor (1) for driving a striking mechanism (2) with a loose coupling (4) between a runner (5) of the linear motor (1) and a striker (6) of the...
US20130133911 ROTARY IMPACT TOOL  
There is provided a rotary impact tool that includes: a motor; a hammer configured to be rotated by the motor; an anvil configured to be intermittently applied with an impact force in a rotation...
US20130284477 OVERLOAD COUPLING  
A power tool device, in particular a hammer drill device and/or a chisel device, includes at least one torque limiting unit that is configured to limit a torque in a drivetrain in at least one...
US20060266537 Rotary impact tool having a ski-jump clutch mechanism  
A clutch mechanism for a rotary impact tool comprises a cam ball and a cam follower. The cam follower includes a raceway for allowing the cam ball to travel along a surface of the cam follower....
US20100200260 HANDHELD TOOL  
A handheld tool includes a first power source, a second power source having a characteristic different from a characteristic of the first power source, and an operation part which is operated by a...
US20130161041 APPARATUS FOR TIGHTENING THREADED FASTENERS  
According to a first aspect of the invention we provide an apparatus for reaction—free and reaction—assisted tightening and loosening of an industrial fastener including: a motor (102) to generate...
US20140374130 Impact Tool  
An impact tool includes a motor, a hammer, an anvil, and a control unit. The hammer is configured to be driven by the motor and be movable in an axial direction of the motor. The anvil is...
US20070102177 Combined torque indicator and regulator for pneumatically-operated hand tool  
A power tool includes a pneumatic torque wrench that has a first housing provided with a threaded aperture and a second housing that is in fluid communication with the first housing such that air...
US20090308628 ROTARY TOOL DRIVEN BY BRUSHLESS MOTOR  
To provide a rotary tool driven by a brushless motor with which constant torque tightening work for screws or the like can always be performed properly and efficiently, in which overall downsizing...
US20090101379 Cordless Power Tool Having Multi-Speed Transmission and Constant Speed in Light Torque Range  
A cordless power tool (300) has a transmission (12) having multiple speed ranges In the light torque range, the speed of a motor (8) of the cordless power tool is held constant to hold an output...
US20150034349 VEGETATION CUTTING DEVICE  
A vegetation cutting device comprises: a housing; a motor mounted in the housing having a rotatable drive shaft; a gearing system comprising a rotatable output shaft, the gearing system adapted to...
US20090114411 DISCONTINOUS TIGHTENING WRENCH COMPRISING MEANS FOR MEASURING DYNAMIC EVENTS CAUSED BY THIS TIGHTENING ON THE CASING OF THE WRENCH  
The invention relates to a discontinuous clamping wrench, of the type comprising a motor and a pulse clutch integrated in a casing, characterised in that it comprises measurement means of dynamic...
US20100116519 POWER SCREWDRIVER  
The invention relates to a power screwdriver (10) comprising a motor (12) as the drive, a desired torque default element (52) and an actual torque determination element (46), a torque gradient...
US20110162861 POWER TOOL WITH SIGNAL GENERATOR  
A power tool comprising a housing, a motor, an output shaft, a gear transmission mechanism and a control system. The gear transmission mechanism is connected between the motor and the output shaft...
US20120279742 Hand-Held Power Tool  
The disclosure relates to a hand-held power tool including a housing having a handle portion, a tool portion for a tool that can be driven to move linearly and/or oscillate, an operator part on...
US20130186666 ROTARY TOOL  
A rotary tool is provided with a mode selecting part that selects one operating mode from a predetermined plurality of operating modes when a mode switching button is pressed. The plurality of...
US20100263890 Impact wrench and control method for an impact wrench  
A control method according for an impact wrench includes ascertaining whether the impact wrench applies an impact when the drive shaft rotates in a lower speed range. The speed of the drive shaft...
US20130068491 ELECTRIC POWER TOOL  
An electric power tool includes: a motor; an operation unit; a control parameter setting unit; and a control unit. The control parameter setting unit sets, as a control parameter of the motor, an...
US20110186320 ELECTRICAL POWER TOOL  
An electrical power tool may include a speed change device that is capable of being automatically changed as an external torque applied to a spindle is increased. In a high speed low torque mode...
US20110147028 MOTOR CONTROL APPARATUS HAVING A FUNCTION TO CALCULATE AMOUNT OF COGGING TORQUE COMPENSATION  
A motor control apparatus that can calculate a proper amount of cogging torque compensation even in cases where components due to other factors than cogging torque (for example, components due to...
US20140367134 REMOTE PROGRAMMING OF A POWER TOOL  
A method is provided for controlling operation of a power tool, such as a drill driver. The method begins with one or more descriptors for a fastening application being received by a controller...
US20090008115 Hand-held power tool with a slip clutch  
A hand-held power tool includes a drive element (12), a driven spindle (16), and a slip clutch (14) arranged between the drive element (12) and the driven spindle (16) and including a plurality of...

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