Abstract: In a rechargeable battery having a plurality of rechargeable battery cells, wherein at least one rechargeable battery cell is connected to an electronic component, which is associated with the rechargeable battery, via an electrical line, the electrical line has at least one contact element which is electrically conductively connected to the at least one rechargeable battery cell by an electrically conductive adhesive.

Abstract: An electric power tool has a device housing with a rear grip extending in the longitudinal direction of the device housing. The device housing has first opposed housing sides and second opposed housing sides. An electric drive motor and its electronic control are arranged in the device housing. A battery pack compartment arranged in the device housing receives a battery pack that has a parallelepipedal shape and extends in a direction of a height axis, width axis and depth axis. The battery pack is arranged such that the width axis and the height axis extend transversely to the longitudinal axis of the device housing. The battery pack has narrow sides extending approximately parallel and at a minimal spacing relative to the first opposed housing sides, respectively. The battery pack has opposed end faces neighboring the second housing sides, respectively.

Abstract: The invention describes a hand-held power tool having a drive train, which includes a motor with a rotor, a drive shaft, and a transmission. According to the invention, at least one flywheel mass is provided that is positionable rotationally symmetrical to the drive shaft and connectable to the drive shaft for co-rotation therewith.

Abstract: A system includes a power tool having a motor, a drive mechanism mechanically coupled to the motor, and an output element mechanically coupled to the drive mechanism. The motor is operable to drive the drive mechanism and the output element. The system also includes a non-motorized sensing tool having a printed circuit board and a sensing element electrically coupled to the printed circuit board. The sensing element is operable to detect an external characteristic and output a signal to the circuit board. The circuit board is operable to condition the signal into a human-comprehensible form. The system further includes a rechargeable battery pack removably and independently coupled to the power tool and the non-motorized sensing tool to power the motor to drive the drive mechanism and the output element when connected to the power tool and the circuit board and the sensing element when connected to the non-motorized sensing tool.

Abstract: A power tool includes a housing configured to house a motor. The housing defines a body axis and has a hand grip for a user, wherein the hand grip is positioned between a first end and a second end of the housing. The power tool further includes a tool element positioned at the first end of the housing and a battery connection port adapted to receive a battery pack. The battery connection port defines a removal axis for the battery pack and includes a first portion located at one end of the removal axis and a second portion located at an other end of the removal axis opposite the first portion. The second portion is positioned closer to the tool end than the first portion.

Abstract: Drivers and drive systems (e.g., off-axis drive systems, pneumatic motors, multi-gear drive systems, and/or the like), and kits comprising drivers with drive systems, such as those, for example, configured to move a drive shaft.

Abstract: A battery operated handheld power tool, comprising a working tool assembly (20), a handle assembly (10) and an elongate tubular rod (30). The working tool assembly (20) comprises a motor housing (26) having a first inner space (27), comprising an electric motor (21) with a fan (25). The first inner space (27) is connected to the exterior of the working tool assembly (20) N by means of at least one air outlet (28). The handle assembly (10) comprises a second inner space (19) in which a control unit (15) is positioned, the second inner space (19) being in flow communication with the exterior of the handle assembly (10). The elongate tubular rod (30) defines an air guiding channel (33), in flow communication with the first inner space (27) and the second inner space (19).

Abstract: A control method for a power tool and a power tool is disclosed. The control method has an operating mode and a safety mode. In the operating mode, a motor drives a tool receptacle in a rotating manner. In the operating mode, the motor has a power consumption in the amount of at least an operating value. The safety mode is triggered if a sensor device detects a rotational blockade of the tool receptacle. In the safety mode, a clutch that is switchable by electrical signals located in the drive train between the motor and tool receptacle is periodically opened and closed and a power consumption of the motor is reduced as compared to the operating value.

Abstract: An electric power tool has an electric motor disposed in a main body and a power supply circuit electrically connected to the electric motor by wires to supply electric power to the electric motor. A switch is disposed in the power supply circuit so as to electrically open and close the power supply circuit. A movable member is supported by the main body, a detector is disposed in the main body to detect a movement of the movable member and the switch is configured to electrically open the power supply circuit when the detector detects the movement of the movable member. The wires connected to the electric motor are not connected to the detector so that the length of the wires is shortened.

Abstract: A battery-powered portable tool, such as a chainsaw, hedge trimmer or handheld drill, comprising: a housing (1), a driven element (2) supported by the housing (1), an electric motor (6) coupled to the driven element (2) so as to drive the driven element (2), a battery (5) electrically coupled to the motor (6) so as to supply electric current to the motor (6) and a control circuit (8) arranged to control the supply of electric current to the motor (6) from the battery (5), in which the control circuit (8) comprises a main switch (8) operable by a user and an auxiliary switch (10, 11) also operable by a user; in which the control circuit (8) has: an active state in which operation of the main switch (8) by the user allows electric current to flow to the motor (6) so as to cause the driven element (2) to be driven; and an inactive state in which operation of the main switch (8) does not allow electric current to flow to the motor (6) and so the motor (6) does not drive the driven element (2); in which operation

Abstract: A power tool includes a motor, a housing that accommodates the motor, a switch that supplies power to the motor, a switch lever that is provided movable relative to the housing to selectively turn ON and OFF the switch, and an off-lock member that is provided movable relative to the switch lever. The off-lock member includes a first engaging part and a second engaging part that are engageable with the housing.

Abstract: A battery operated handheld power tool, the power tool (1) comprising a working tool assembly (20), comprising a working tool of the power tool and an electric motor, arranged to drive the working tool, a handle assembly (10), comprising a body portion (11) to which a battery pack (13) may be detachably connected, which battery pack (13) is arranged to provide electric power to the electric motor, a control unit (15), provided in the body portion (16) so as to control a flow of electric current from the battery pack (13) to the motor. The battery operated handheld power tool is characterized in that the body portion (11) comprises a fan (14), arranged to generate a flow of air passing by the control unit (15) during operation of the power tool (1).

Abstract: A power tool that includes a housing, a trigger switch that is mounted to the housing, a tool output member and a motor and transmission assembly. The housing defines a handle. The motor and transmission assembly is coupled to the housing and is configured to drive the tool output member. The motor and transmission assembly include a motor, which is electrically coupled to the trigger switch, and a transmission having a transmission input member, which is drivingly coupled to the motor, and a transmission output member that is drivingly coupled to the tool output member. The motor and transmission are packaged in the housing in a manner that is extremely compact.

Abstract: Described herein is technology for, among other things, removing a dent from a dented surface. The technology includes an automated hammering device positioned on a first side of the dent, and a dolly positioned on a second side of the dent. The automated hammering device repeatedly strikes the dent, thereby restoring proper curvature to the dented surface.

Abstract: A vehicle body repair device repairs buckled or dented sheet metal to a desired condition. The device includes a housing and a first head coupled to the housing. The first head has an outer surface facing away from the housing. A second head is coupled to a handle. The second head has an outer surface facing away from the handle. A reciprocating unit is coupled to and positioned in the housing wherein the reciprocating unit urges the first head into repetitive contact with a sheet of material adjacent to the first head when the reciprocating unit is activated. Thus, the sheet of material is urged to conform to a shape defined by the outer surface of the first head and the outer surface of the second head when the sheet of material is positioned between the first head and the second head while the reciprocating unit is activated.

Abstract: A hand power tool, in particular an angle grinder, includes a drive unit and an electronic unit. The hand power tool further includes an after-run cooling unit configured, at least partially, to cool the drive unit and/or the electronic unit substantially after an operating state of at least the drive unit.

Abstract: An electric power tool, which uses a DC brushless motor as a drive source and controls the DC brushless motor by a switching element, can include a tubular housing main body portion accommodating the DC brushless motor, and a grip portion protruding from a side portion of the housing main body portion. The switching element is arranged inside the grip portion, and is spaced apart from an electronic circuit board for an electronic component for operating the switching element.

Abstract: A handheld power tool has a switchable gear having at least two gear stages which are engaged via an adjustable switching member, the switching member being held in a latching position with a latching member in a first gear stage and in an unlatched position in a second gear stage. The latching member is rotatably mounted in the housing within a limited angular section between two end stop positions.

Abstract: An improved method is provided for operating a power tool. The method includes receiving an input control variable from an input unit; receiving at least one tool parameter relating to the power tool; determining a derivative of the input control variable; selecting one of a plurality of control profiles based on the control input variable, the derivative of the input control variable, and the tool parameter, each control profile correlating the control input variable of the input unit to a rotational speed at which to drive the output shaft; and driving the output shaft at a rotational speed in accordance with the selected control profile.

Abstract: An improved method is provided for operating a power tool. The method includes receiving an input control variable from an input unit; determining a second derivative of the input control variable; selecting one of a plurality of control profiles based on the control input variable and the second derivative, each control profile correlating the control input variable of the input unit to a rotational speed at which to drive the output shaft; and driving the output shaft at a rotational speed in accordance with the selected control profile.

Abstract: A power tool with a working head for holding a working element. The power tool includes a motor having a motor output shaft for driving said working element and a duct having an inlet locatable in proximity to a point of contact between the working element and a workpiece. A dust collection chamber has an inlet in fluid communication with an outlet from said duct, and an outlet in fluid communication with atmospheric air. A fan is operable to transport air from the inlet of said duct to the inlet of said dust collection chamber. A first drive wheel is mounted on the motor output shaft. A second, driven, wheel mounted on a second shaft and a drive belt connects the first, drive wheel to the second, driven wheel, for transmitting power from the motor output shaft to the second shaft. The fan is mounted on the second shaft.

Abstract: A power-driven hand-held tool is disclosed. It comprises a housing, a drive motor arranged in the housing and having a motor shaft that defines a longitudinal axis, a workspindle comprising a tool holding fixture arranged outside the housing for holding a tool, wherein the workspindle defines a spindle axis arranged at an angle relative to the longitudinal axis, wherein at least one battery unit is provided for supplying the drive motor with energy, wherein the drive motor is coupled to the workspindle for driving same oscillatingly about the spindle axis, wherein a center of gravity of the battery unit is located on a side of the longitudinal axis opposite the tool holding fixture.

Abstract: A work machine includes a motor and a sensor disposed in a front unit, a motor controller disposed in a rear unit, a motor power line and a sensor signal line disposed along an operation rod, and a pair of electric connectors. The motor power line includes first and second partial motor power lines disposed along the first and second partial rods respectively. The sensor signal line includes first and second partial sensor signal lines disposed along the first and second partial rods respectively. A first electric connector includes first electric terminals, each of which is coupled with corresponding one of the first partial motor power line or the first partial sensor signal line, and a second electric connector includes second electric terminals, each of which is coupled with corresponding one of the second partial motor power line or the second partial sensor signal line.

Abstract: A power tool (1) and a method of producing such power tool capable of improving dust proof performance with respect to a circuit board (33) and a stator coil (31B), and capable of securing cooling performance to the circuit board. The power tool includes a brushless motor (3) having a hollow stator (31), a rotor (32) positioned in an internal space of the stator, and a motor driver circuit connected to the stator. The stator includes a coil (31B) electrically connected to the mo- for driver circuit. The coil is coated with a coating agent (31D), and the motor driver circuit is covered with an insulation cover member (33D).

Abstract: There is disclosed a tool (5) comprising a cam track (A) and cam follower means (B), wherein a width (WA) of at least a portion of the cam track (A) is greater than a width (WB) of the cam follower means (B). The cam follower means (B) is engaged within the cam track (A), the cam follower means (B) being adapted to run in/around the cam track (A) and be thrown between opposing walls (D, E) of the cam track (A). In use, the cam follower means (B) therefore has two degrees of motion, a first defined by the cam track (A), and a second defined by ricochet between opposing walls (D, E).

Abstract: Illustrative embodiments of power tools with spindle locks are disclosed. In one illustrative embodiment, a power tool may include a drive train including an output assembly, the output assembly including a spindle configured to support a tool element, a power source configured to selectively supply energy to the drive train to cause the output assembly including the spindle to rotate, a switch movable between a first position in which the power source does not supply energy to the drive train and a second position in which the power source supplies energy to the drive train, and a spindle lock configured to automatically engage the output assembly including the spindle when the switch is in the first position and to automatically disengage the output assembly including the spindle when the switch is in the second position, the spindle lock preventing rotation of the output assembly including the spindle when engaged.

Abstract: Embodiments of clutches for electric pole saws, and related methods, are disclosed herein. An electric pole saw may include an electric motor, a drive shaft coupled between the electric motor and a cutting instrument, and a clutch coupled between the electric motor and the drive shaft. The clutch may include a motor portion having an exterior surface, a drive shaft portion having an exterior surface and forming a mated assembly when mated with the motor portion, and a spring around the motor and drive shaft portions. The spring may exert a holding force on the mated assembly, such that rotation of the motor portion in a first direction loosens the spring and reduces the friction holding force until a torque between the motor and drive shaft portions exceeds the holding force, causing rotation of the motor portion to be decoupled from rotation of the drive shaft portion.

Abstract: The present invention provides a rechargeable electric tool in which a battery pack detachably mounted to a mounting part, which is formed lower than an opening provided at a housing, wherein a seal member is held in the housing to seal between the opening and the battery pack mounted to the mounting part. A projection projecting toward the opening side is provided at the seal member, and a passing hole that penetrates the projection and the seal member and allows a lead line connecting an electric component accommodated on the opening side in the housing to the battery pack to pass therethrough is formed.

Abstract: A power tool includes a housing and an output shaft supported by the housing for rotation about an axis. The power tool further includes a first motor disposed in the housing and a second motor disposed in the housing and coupled to the first motor. The first motor drives the output shaft and does not drive the second motor when in a first power mode, and the second motor drives the first motor and the output shaft when in a second power mode.

Abstract: An impact tool includes a bit holding device with an elongate tool holder having a bit holding hole with a tool bit, an outer shell component forming an outer shell of the bit holding device and mounted onto a front end portion of the tool holder, a stopper fitted onto the tool holder and prevented from moving in a longitudinal direction of the tool holder, and prevents the outer shell component from becoming detached from the front end of the tool holder, and an opening prevention member disposed outward of a center position of the stopper in the longitudinal direction of the tool holder and opposed to an outer surface of the stopper in a direction transverse to the longitudinal direction of the tool holder, and prevents the stopper from opening in the direction transverse to the longitudinal direction of the tool holder.

Abstract: A hydrodynamic compression and/or cutting tool (1) comprises an electric motor (6), a transformation mechanism (8) suitable for transforming the rotary motion of the motor (6) into an oscillating translation motion, a two-speed hydraulic pump (11) suitable for carrying out an increase in pressure of a pressure fluid acting on an actuation piston (12) in response to the oscillating translation movement so as to move the actuation piston (12).

Abstract: A power tool, such as a pipe cutter, includes a rotatable cutting head assembly, an electric motor connectable to a rechargeable battery, and a controller. The controller is configured to monitor the state of charge on the battery, compare the state of charge to one or more thresholds, and prevent or limit operation of the power tool when the state of charge is less than or equal to one or more of the thresholds. In some embodiments, the threshold includes the state of charge required to cut a pipe, the state of charge required to return the cutting head assembly to a home position, and a state of charge indicative of an overdischarged condition of the battery. In some embodiments, the controller is configured to detect when the pipe cutter has completed cutting the pipe and returns the cutting head assembly to the home position.

Abstract: A handheld work apparatus having an electric drive motor has a battery pack (11) serving as a power supply unit for the drive motor. A receptacle for the battery pack (11) is provided on a housing (2) of the work apparatus. In order to simplify the mounting and arrange the battery pack (11) in a more favorable manner, a receiving compartment is provided in the housing (2) and a system carrier is arranged therein, to which electrical components (12, 13, 16) and electrical lines are affixed. A battery compartment (6) is formed in the system carrier (5) and contact elements for contacting the battery pack (11) are arranged on the system carrier (5). The electrical components (12, 13, 16) are interconnected and connected to the contact elements (18) by the lines located on the system carrier (5).

Abstract: The invention discloses a portable tool having a housing with a gearhead, having a motor shaft which can be rotationally driven by a motor and which can be coupled via an eccentric coupling drive to a tool spindle for the drive thereof, wherein the tool spindle can be driven in a rotational oscillatory manner about the longitudinal axis thereof and is configured for accommodating a tool, wherein a motion-reversal drive is provided which is configured for converting an oscillating drive movement produced by the eccentric coupling drive into an oscillating output movement which has a direction of oscillation opposed to said drive movement. The motion-reversal drive is configured as an epicyclic gearing.

Abstract: A power tool has a housing, a motor disposed in the housing, a tool holder driven by the motor, a control circuit for controlling the motor, a rotary input rotatable relative to the housing, and a rotational sensor for sensing the rotational position of the rotary input relative to the housing. The rotary input can be a thumbwheel or a handle that rotates relative to the housing. The control circuit receives input from the rotational sensor for controlling motor speed, rotational direction, etc. Other user interface mechanisms are disclosed as well.

Abstract: An electric power tool includes: a motor; a housing receiving the motor; a power transmission mechanism configured to transmit a driving force of the motor to rotate a top tool; a snap switch including a swing type lever configured to turn on or off rotation of the motor, the snap switch being received inside the housing; a switch lever configured to move in a direction substantially vertical to a surface of the housing; a push bar configured to move the swing type lever in conjunction with the movement of the switch lever; and an urging unit configured to urge the push bar in a direction in which the switch is turned off.

Abstract: An electric tool, particularly a saw, has a connecting region and an actuating handle. The actuating handle is pivotally arranged on the connecting region, wherein the actuating handle can be pivoted into a number of pivoted positions and the actuating handle has at least one actuating switch for the electrical actuation of the electric tool. An uncomfortable position of the hand during actuation of the actuating handle is avoided and a high degree of comfort is achieved by the connecting region and the actuating handle being connected to each other by way of an articulated connection and by the articulated connection having a bearing lug and a handle pivot pin in engagement with the bearing lug.

Abstract: An electric power tool has a drive motor and an electronic control unit. Power is supplied by a battery pack with several individual cells and a monitoring circuit for the operating parameters of the cells. A communication line connects electronic control unit and monitoring circuit. Digital data are exchanged through the communication line between electronic control unit and monitoring circuit. A controller controls data traffic through sending and receiving units. The communication voltage is higher than a permissible input voltage level of the controller and lower than a maximum battery pack voltage. The receiving unit, as a filter, converts a received first signal level that is lower than a first voltage to a LOW signal and lowers a received second signal level that is higher than a second voltage to the input voltage level of the controller and relays the second signal level as a HIGH signal.

Abstract: An electric tool including: a motor; a tip tool configured to be rotationally driven by the motor; and a control unit configured to control the rotation of the motor and including a microprocessor and a memory unit, wherein the memory unit is configured to store control information by learning a use state of the motor, and wherein the motor is configured to be driven according to the stored control information.

Abstract: The invention relates to a multi-gear transmission device, particularly a two-gear transmission device, for transferring a drive torque from an input side to an output side, which transmission device has at least two selectable gear ratios. The multi-gear transmission device further has a multi-stage clutch device, particularly a two-stage clutch device, with at least two different, selectable limit torques. According to the invention, the multi-stage transmission device has at least two preferably switchable translating gear pairs, and the multi-stage clutch device is included in the translating gear pairs.

Abstract: A portable power tool has at least one actuating element and at least one tool holding unit. A center axis of the at least one tool holding unit is configured to extend at least through a vicinity of the at least one actuating element.

Abstract: The present invention provides a rechargeable electric tool in which a battery pack as a power supply slides in a battery holder formed in an end part of a housing. A bag-shaped waterproof cover covering the battery pack including a coupling part between the battery holder and the battery pack is formed by two divided covers which are separated to the front and rear sides in a slide attachment direction of the battery pack. Between the two divided covers, a coupling mechanism can be moved to a coupling position or a coupling cancelling position. The coupling position is a position in which the divided covers are coupled to each other in an attached state where the coupling part and the battery pack are covered. The coupling cancelling position is a position in which coupling of the divided covers is cancelled.

Abstract: An electric machine tool may include an interface via which the electric machine tool can be mechanically and electrically connected to a battery pack. A coupling apparatus may be provided, which can be mechanically and electrically connected to the electric machine tool via the interface. The coupling apparatus may include a first battery interface for connection to a first battery pack and a second battery interface for connection to a second battery pack.

Abstract: A rotary power tool operable in a first speed mode and a second speed mode comprising a motor shaft (6), a driveshaft (10) with an axis of rotation (42), a gear (24, 74) that is a component of a transmission (8) for transmitting torque from the motor shaft (6) to the driveshaft (10), a support member (48, 70), at least one bearing member (54, 76) which contacts the gear (24, 74), wherein the gear (24, 74), the support member (48, 70) and the at least one bearing member (54, 76) form an assembly that is in a first position along the axis of rotation (42) when the tool is operating in the first speed mode and is in a second position along the axis of rotation (42) when the tool is operating in the second speed mode, and wherein the at least one bearing member (54, 76) protrudes from the support member (48, 70) in the direction of the gear (24, 74) and rotates when the gear (24, 74) rotates.

Abstract: A cordless, hand-held power tool, such as a hammer drill/driver, a drill/driver, an impact driver, an impact wrench, etc., that includes a brushless direct current (“BLDC”) motor. Each of the hand-held power tool includes a removable and rechargeable battery pack, electronics, and a BLDC motor that have been designed and balanced to produce a high-performance-capable (e.g., high-power, high-current, high-torque) hand-held power tool. The hand-held power tool is capable of delivering high instantaneous (i.e., short duration) current to the BLDC motor for short-duration high power operation and high continuous (i.e., long duration) current to the BLDC motor for long duration high power operation. Additionally, the short and long duration power is capable of being provided in a smaller (in size) and lighter (in weight).

Abstract: A power screwdriver and/or drill has a drive unit and an operating unit that has a first operating surface which is oriented substantially perpendicularly to an actuating direction of the first operating surface. The drive unit is at least activatable by the actuation of said first operating surface. The operating unit also has at least one second operating surface which is oriented substantially perpendicularly to the actuating direction of the first operating surface and is arranged at a distance from the first operating surface in the actuating direction, the drive unit is at least activatable by the actuation of said second operating surface.

Abstract: An electric motor for use with a power tool includes a rotor having a body and a plurality of magnets coupled to the body, a stator having a plurality of electromagnetic coils surrounding the rotor, and an output shaft coupled to the rotor for rotation with the rotor. The output shaft defines a longitudinal axis about which the rotor rotates. The motor also includes a balancing member coupled to the output shaft for rotation with the rotor. The balancing member substantially balances a mass of the rotor about the longitudinal axis to reduce vibrations of the electric motor during use.

Abstract: A hand-held power tool is disclosed. The power tool has a tool receptacle for holding a tool along an axis. A housing has a grip area for a first hand. The grip area has a support section for the thumb and index finger in a plane with the axis and a shaft section for gripping around on one side of the plane. A contact surface for a second hand, which is arranged facing away from the tool receptacle and on another side of the plane, is inclined between 80 degrees and 100 degrees to the plane.

Abstract: The invention relates to a driving system (6) for a cleaning machine (1), which comprises a floor treating brush and/or disc (7) rotatably driven by a motor (4) and exhibiting surrounding ring-shaped rim and vacuum duct (10) for suction (13) of washing liquid (14). According to the invention the motor is formed by a horizontally arranged, electrically driven hub motor (4). The rotor (15) of the motor (4) is drivably connected to said rotatably driven floor treating brush and/or disc (7), while the stator (17) of the motor (4) is connected to the stationary frame (18) of the cleaning machine (1).

Abstract: The present invention provides a rechargeable electric tool in which a battery pack detachably mounted to a mounting part, which is formed lower than an opening provided at a housing, wherein a seal member is held in the housing to seal between the opening and the battery pack mounted to the mounting part. A projection projecting toward the opening side is provided at the seal member, and a passing hole that penetrates the projection and the seal member and allows a lead line connecting an electric component accommodated on the opening side in the housing to the battery pack to pass therethrough is formed.