5403 results about "Power tool" patented technology

A power tool includes a housing, a motor being controlled to run at a speed between 15,000 rpm and 32,000 rpm, an output spindle, a rotary impact assembly configured to transmit rotational motion with intermittent rotational impacts from a cam shaft to the output spindle, a hammer of the rotary impact assembly having an inertia between 400 kg·mm2 and 3,000 kg·mm2, and a single stage compound planetary transmission including a first planet gear meshed with a sun gear and a second planet gear meshed with a ring gear, the compound planet gear being carried by a planet carrier to achieve a gear reduction ratio between 14:1 and 30:1. The power tool is configured to achieve a fastening torque of at least 900 foot-pounds (a) in a time of less than 3.5 seconds, and / or (b) with an input energy of less than 2,500 Joules.

The invention provides a chain saw and a cutting tool, and the chain saw comprises a working part which comprises a guide plate and a chain; the main body part comprises a shell; a motor accommodated in the housing; the driving circuit is electrically connected to the motor; a controller accommodated in the housing; the motion detection device is in associated connection with the main body part or the working part, is connected with the controller and is used for detecting the motion variation of the main body part or the working part in at least one direction; the controller is configured to control the motor to enter a braking process when the motion detection device detects that the motion variation of the main body part or the working part in at least one direction exceeds a preset condition; the chain saw is configured to be in communication connection with external equipment; the external device is at least configured for a user to set information related to a preset condition. By the adoption of the technical scheme, the chain saw with the rapid braking function can be provided.

One or more settings of a power tool device can be automatically adjusted based on a location of the power tool device relative to a work object. Work object data that indicate a work object type for the work object can be determined, and work location data can be determined based on the work object data. The work location data indicate work locations on the work object where a power tool device action is to be performed. A position of the power tool device is also determined. An electronic controller can determine a power tool device setting corresponding to the power tool device action to be performed at the work location nearest to the power tool device position. The power tool device setting is transmitted to the power tool device by the electronic controller, where the power tool device setting indicates an operating parameter of the power tool device.

The object of the present invention is to provide a personal care power tool, comprising a driving component, a working component, an inner shell, an outer shell and a protective cover, wherein the driving component is provided with a Hall switch, a magnet is provided on at least one surface of the protective cover, the outer shell is provided on the outside of the inner shell, and the protective cover is provided on the outside of the working component; when the protective cover is removed from the outside of the working component and installed on the bottom of the inner shell, the magnet approaches and turns on the Hall switch, starting the power tool; when the protective cover is removed from the bottom of the inner shell, the magnet moves away from and turns off the Hall switch, turning off the power tool. The technical effect is as follows: the protective cover of the power tool has the function of a switch, that is, the protective cover becomes a functional and indispensable part of turning on or off the power tool, thereby avoiding the user from placing the protective cover at will and avoiding the possibility of losing the protective cover.

A multi-stage trigger assembly for portable, hand-held, battery powered tools is provided. The tool may be configured as a crimping tool, a cutting tool or other type of tool. The tool has an in-line handle assembly and a working head assembly. The trigger assembly has a first stage that is a manual operation and a second stage that is an electro-mechanical operation.

A rotary impact tool includes a motor and an impact mechanism. The impact mechanism includes a cam shaft with a first cam groove rotatably driven by the motor, a cam ring received over the cam shaft with a second cam groove on its inner surface and a third cam groove on its outer surface, a hammer received over the cam ring with a fourth cam groove on its inner surface, an anvil with an output shaft and configured to be selectively engaged by the hammer, a spring configured to bias the hammer toward the anvil, a first ball received in the first and second cam grooves to couple the cam ring to the cam shaft, and a second ball received in the third and fourth cam grooves to couple the hammer to the cam ring.

A power tool includes a housing, a motor mounted within the housing and including a stator with an outer diameter and a rotor having a shaft configured to rotate about an axis relative to the stator. The power tool also includes a gear assembly operably coupled to the motor and including a ring gear fixed relative to the housing and planet gears meshed with the ring gear. A drive assembly is operably coupled to the gear assembly to receive torque from the shaft through the gear assembly. The power tool also includes a rear bearing rotatably supporting a rearward portion of the shaft and a forward bearing rotatably supporting a forward portion of the shaft. A distance measured between a front edge of the rear bearing and a rear edge of the forward bearing is less than the outer diameter of the stator.

The invention discloses an electric tool, a nail gun and a control method of the electric tool. The motor is arranged in the shell; the battery pack is used for supplying power to the motor; the percussion assembly is arranged in a nailing period, can move from an initial position to a percussion position so as to knock out a nail to a workpiece, and can move from the percussion position to the initial position; the parameter detection unit is at least connected with the motor and at least detects working parameters of the motor; the controller is at least connected with the parameter detection unit; the controller is configured to limit the maximum duty ratio of the starting control signal to be smaller than or equal to the duty ratio threshold value if the working parameter is smaller than or equal to the parameter threshold value in the motor starting process.

A power tool system includes a power tool, a sensor, and an electronic controller of the power tool. The power tool includes a power tool housing, a motor housed within the power tool housing, and a pack interface coupled to the power tool housing. The pack interface receives a power tool battery pack having a corresponding tool interface. The sensor senses an electrical parameter corresponding to a power tool battery pack coupled to the pack interface. The electronic controller of the power tool controls the power tool battery pack to discharge current; receives an output of the sensor when the power tool battery pack is controlled to discharge current; generates a temperature estimate by processing the output of the sensor using a thermal model stored on the memory; and generates a temperature warning signal in response to the temperature estimate exceeding a temperature threshold.

A power tool is disclosed and includes a housing and a motor disposed within the housing. The power tool further includes a first blade and a second blade movable relative to the first blade by the motor. During operation, a cutting stroke length of the first blade relative to the second blade is selectively adjustable based on a direction of rotation of the motor.

A power tool includes a motor, an output part, a housing, a control circuit board, and a panel. The motor includes a rotor rotatable about a motor rotation axis extending in a front-rear direction. The output part is disposed forward of the motor and is rotated by a rotational force of the rotor. The housing includes: a motor housing part that houses the motor; a grip part that extends downward from the motor housing part; and a battery holding part that is connected to a lower end of the grip part. The control circuit board is housed in the grip part and is configured to control the motor. The panel is disposed at a rear portion of the battery holding part and is manipulated to change a control method of the motor.

A mechanical percussion mechanism for a striking drive of an insertion tool of a handheld power tool includes a rotatably supported intermediate shaft, an impact body, and a rotatably supported output shaft. The intermediate shaft and the impact body each include at least one guide groove for guiding at least one guide body. A guide surface of the guide groove of the intermediate shaft and / or a guide surface of the guide groove of the impact body is configured as a kink-free and / or edge-free surface.

To reduce the number of components of an electric tool.SOLUTION: An electric tool includes a motor, a control circuit board for controlling the motor, and a panel which is operated to change a motor control method. A resin part supporting the panel includes the control circuit board.SELECTED DRAWING: Figure 9

A battery for use with a power tool and the battery is removable from the power tool. The battery includes a housing having a first rib and a second rib. The battery further includes a release including an actuator and a latch that together move relative to the housing by the actuator from a first position to a second position. The release includes a first recess and a second recess, the first recess receives the first rib of the housing such that the first rib slides along the first recess to guide movement of the release between the first and second positions. The second recess receives the second rib of the housing such that the second rib slides along the second recess to guide movement of the release between the first and second positions.

The disclosure relates to a housing apparatus, in particular a hand-held power tool housing, for a hand-held power tool, in particular an angle grinder, with at least one handle housing which comprises at least one bow handle, with at least one motor housing which comprises a storage area in which a drive unit of the hand-held power tool can be disposed and which specifies an orientation of an axis of rotation of the drive unit, wherein, viewed in a direction parallel to the axis of rotation, the handle housing, in particular the bow handle, is disposed on the motor housing at least substantially entirely on a side of the motor housing facing away from a gearbox housing connection region of the motor housing, and with at least one battery pack interface for placement of at least one battery pack which is disposed on the handle housing on a side of the handle housing facing away from the bow handle.It is proposed that, viewed along a direction perpendicular to the axis of rotation, the bow handle projects largely beyond the motor housing.

A system including a machine tool and a power supply device, the power supply device being provided for supplying the machine tool with electrical power. The power supply device can be detachably connected to the machine tool by means of an interface, the interface coincluding at least one female contact partner and one male contact partner. The interface has at least one elastic means for reducing a relative movement between the male contact partner and the female contact partner, the at least one elastic device for reducing the relative movement between the contact partners being designed to engage with the at least one male contact partner and / or the at least one female contact partner. The power supply device includes at least one energy storage cell, the at least one energy storage cell having an internal resistance DCR_I of less than 10 milliohm. Methods for connecting a power supply device to a machine tool via an interface, and to an interface itself are also provided. A power supply device for use in the system.

An edge trimming tool assembly (1) is disclosed configured to cut vegetation around edge formations (50). The assembly (1) comprises a drive shaft (3) and a trimming tool (5) configured to be rotated around a rotation axis (ax) by the drive shaft (3) such that a radially outer portion (5) of the trimming tool (5) orbits in a circular path (c). The assembly (1) comprises a guard (7) comprising a first guard portion (11) covering a portion of an area (A) formed inside the circular path (c) as seen in a first direction (d1) parallel to the rotation axis (ax) and a second guard portion (12) covering a portion of the area (A) as seen in a second direction (d2) parallel to the rotation axis (ax), wherein the second direction (d2) is opposite to the first direction (d1). The present disclosure further relates to a power tool (2) comprising an edge trimming tool assembly (1).

A power tool, including: a housing, extending in a longitudinal direction; and a fan, a motor, and a circuit board that are received in the housing. The housing defines an air outlet, a first air inlet, and a second air inlet. The first air inlet is adjacent to the motor, and the second air inlet is adjacent to the circuit board; the first air inlet is disposed between the air outlet and the second air inlet. The power tool includes a first heat dissipation air path that flows through the motor and a second heat dissipation air path that flows through the circuit board. The motor includes an output shaft extending along the longitudinal direction. The output shaft is connected to the fan; the air outlet, the fan, the first air inlet, and the second air inlet are arranged sequentially in an axis direction of the output shaft.

A hand-held power tool is configured to receive an input indicative of a clutch setting for an electronic clutch from the tool operator, where the clutch setting is selectable from a drill mode, an automated drive mode and one or more user-defined drive modes. Each of the user-defined drive modes specifies a different value of torque at which to interrupt transmission of torque to the output spindle. In an automated drive mode, the controller interrupt torque to the output spindle in an automated manner when a fastener being driven reaches a desired stopping position. In a selected one of the user-defined drive modes, the controller sets a value of a maximum current threshold in accordance with the selected one of the user-defined drive modes and interrupts torque to the output spindle when current measures exceeding the maximum current threshold.

A cargo carrier releasably coupled to a hitch of a vehicle, the cargo carrier including: a frame including a first frame portion releasably coupled to the hitch and a second frame portion that is movable relative to the first frame portion; and a lifting assembly for alternatively raising and lowering the second frame portion relative to a grounded position, the lifting assembly including an electric motor that receives electrical current from a power source, and a drive mechanism driven by the electric motor to translate the second frame portion relative to the first frame portion to alternatively raise and lower the second frame portion relative to the grounded position, wherein the second frame portion is alternately connectable to a platform upon which cargo is storable and a power tool directly supported by the second frame portion without the platform.

A power tool is provided including a power supply interface receiving a removable battery pack, a brushless direct current (BLDC) motor including a rotor and a stator, and a multi-phase inverter bridge circuit. A controller is provided to output drive signals to the inverter bridge circuit to control flow of current from to the motor, where each drive signal is activated within each corresponding phase of the motor within a conduction band. The controller is configured to control a length of the conduction band at a variable value within a first torque range below a torque threshold and at a substantially constant value within a second torque range above the torque threshold. The torque threshold is greater than approximately 1 Newton-meters and the motor produces a maximum power output of at least approximately 1250 watts at the torque of approximately 1 Newton-meters.

An electric tool includes: a housing assembly including a housing body and an operation portion integrally connected with the housing body; a driving mechanism connected to the housing assembly and including a motor and a transmission shaft connected to and driven by the motor; and a control module arranged within the housing assembly and comprising a controller and a sensing element that is electrically connected to the controller. The motor is electrically connected to the controller. The sensing element is arranged at an inner side of the operation portion. The sensing element is to detect a user operation on the operation portion and output a signal to the controller, and the controller is to control the motor in response to the signal output by the sensing element.

A power tool comprises a housing, a motor assembly and an impact assembly configured to be driven by the motor assembly. The impact assembly comprises a hammer defining a hammer chamber therein and an anvil at least partially disposed in the hammer chamber and configured to rotationally drive an output shaft. The anvil comprises a body portion, an anvil chamber defined therein, and a reciprocating member configured to selectively move radially outwardly relative to the body portion to be selectively impacted by an impact member of the hammer so that the hammer selectively imparts rotational movement to the anvil. The anvil includes an active valve configured to control discharge of fluid from an anvil chamber to the hammer chamber. The active value variably opens based on variance of one or more physical characteristics of the fluid (e.g., at least one of volume, temperature, pressure, or viscosity of the fluid).

A fastener driver includes a motor, a trigger, and a lifting assembly operable to be moved by the motor. The fastener driver includes a speed sensor, a voltage sensor, and a current sensor. A controller is configured to provide, in response to actuation of the trigger, power to the motor, receive speed signals from the speed sensor indicative of the speed of the motor, receive voltage signals from the voltage sensor indicative of the voltage of a battery pack, and receive current signals from the current sensor indicative of the current of the motor. The controller determines a torque of the motor based on the signals, determines whether the torque of the motor is less than or equal to a torque threshold, and activate an electronic clutch, in response to the torque of the motor being less than or equal to the torque threshold, to electronically brake the motor.

The invention relates to the technical field of electric tools, in particular to a high-stability electric circular saw base which comprises a main machine shell, a lateral protective cover is movably assembled on the side wall of the main machine shell, an electric control type cutting circular saw is installed on the side wall of the main machine shell and located in the lateral protective cover, and a lateral stability adjusting base is arranged on one side of the main machine shell. And a side hanging type dust collecting box is mounted on the side wall of the lateral stable adjusting seat. According to the high-stability machine base for the electric circular saw, the lateral stability adjusting base is arranged on one side of the main machine shell, the position of the whole electric circular saw is limited through the lateral stability adjusting base, and therefore the stability of the electric circular saw in the mounting and cutting process is improved, and operation is convenient; the embedded overhead guide rail with the built-in electric control lead screw is fixedly assembled on the upper surface of the lateral stability adjusting seat, the electric control lead screw is directly connected with the main machine shell and is controlled, and storage and unfolding are convenient.

An electric tool includes a body and a display device. The body has a main body portion and an operating portion. The body has a head portion and a rear portion that are located on a straight axis which is virtual. The operating portion has a connecting portion and a holding portion. Two ends of the connecting portion are respectively connected to the rear portion and the holding portion. The holding portion is located on the straight axis. A distance is provided between the holding portion and the rear portion. The rear portion has a mounting wall facing the holding portion. The display device is disposed on the rear portion and has a display portion exposed outside the mounting wall to show an operational status of the electric tool. Therefore, the holding portion could shield the display portion, reducing the likelihood of damage to the display portion due to collisions.

A modular electric wheel assembly. The assembly including a motor with a rotor in a rotary union with a stator. The motor of the brushless DC type and including a circular rotor rotating about a central axis and including a central hollow axle. The hollow axle configured for coupling with a removable energy source and / or an external energy source and including attachment structures for a plurality of attachments to enable riding by a user or configuration within a parent vehicle such as a bicycle or moped, or use as another machine type, such as a power tool or power generation machine. The rotor configured with a quick-change mechanism through a first ring configured to accept a plurality of removable wheel types and rotatable attachments, enabling a user to select a variety of unique wheel / tire types and configurations for a variety of applications.

A holesaw assembly can include a holesaw, a pilot drill, an arbor, and a retainer. The holesaw can include a base and a cylindrical wall coupled to the base. The cylindrical wall terminates away from the base in a cutting edge and defines an internal space. The drill bit can include a cutting tip and an elongate shaft portion. The arbor can include a first portion configured to be couplable with a tool holder of a power tool and a second portion configured to be coupleable with the holesaw. The arbor can be configured to receive the drill bit and facilitate movement of the drill bit between an extended position and a retracted position relative to the arbor while the drill bit remains coupled to the arbor. The cutting tip is closer to the first portion of the arbor in the retracted position than in the extended position. The retainer can be configured to selectively maintain the drill bit in the retracted position. Release of the retainer can allow movement of the drill bit from the retracted position toward the extended position.

A control apparatus for a power tool containing at least one circuit board, a heat-conducting element, a cooling device for cooling the at least one circuit board, and at least one housing element, wherein, in a mounted state of the control apparatus, the circuit board and the heat-conducting element are arranged between the cooling device and the housing element, and wherein the heat-conducting element is positioned between the circuit board and the cooling device. A preload device is contained between the housing element and the at least one circuit board in order to press the circuit board against the heat-conducting element in a predefined direction.