Black & Decker

A power tool comprising: a drive housing comprising an air inlet and an air outlet, an assembly movably mounted within the drive housing, wherein the assembly comprises a motor and an air flow passage, a fan configured to generate airflow from the air inlet to the air outlet, a divider configured to divide the drive housing into a first internal section comprising the air inlet and a second internal section comprising the air outlet, the first internal section and the second internal section fluidly linked by the air flow passage, wherein the divider substantially reduces or prevents airflow between the first and second internal sections except through the air flow passage, wherein the divider comprises a labyrinth structure, at least part of which is coupled to the assembly.

A portable electric knockout punch comprising: an electric motor; a hole forming mechanism having a support portion for cooperating with a die and a punch portion for cooperating with a stamp wherein the hole forming mechanism is operatively coupled to the electric motor for causing axial displacement of the punch portion relative to the support portion between a home position and an active position for forming a hole in sheet metal; a home position sensor for generating output indicative that the punch portion has reached the home position during a reset stage of operation in which the punch portion is moved towards the home position; and a controller for receiving motor turn information indicative of the number of turns of the electric motor and for controlling axial movement of the punch portion in use based only on the motor turn information and the output generated by the home position sensor.

A portable electric rivet nut setting tool comprising an electric motor having a motor output shaft, a rivet nut setting mechanism having a threaded rod portion for mating with a rivet nut to be set and an anvil against which the rivet nut can be urged in use, the rivet nut setting mechanism being operatively coupled to the motor output shaft via a transmission of the tool which in use causes linear relative movement between the threaded rod portion and the anvil for setting a rivet nut in use, the transmission comprising a conversion mechanism for converting torque into a linear force for causing said linear relative movement between the threaded rod portion and the anvil of the rivet nut setting mechanism.

An electric power tool may include a tool housing, an electronic control module disposed in the tool housing, and a battery receptacle formed on the tool housing and including a plurality of battery terminals at least partially electrically coupled to the electronic control module. The electronic control module may be configured to selectively configure the plurality of battery terminals between a first state in which one or more of the plurality of battery terminals is configured to receive power from a battery pack externally mounted to the battery receptacle and electrically coupled to the plurality of battery terminals, and a second state in which at least a portion of the plurality of battery terminals is configured to receive communication signals from a communication adapter externally mounted to the battery receptacle and electrically coupled to the plurality of battery terminals.

A clip-on guard assembly for a tool guard is disclosed. The tool guard provides shielding for a tool, and the clip-on guard assembly can be detachably mounted to the tool guard to provide additional shielding coverage for the tool. The clip-on guard assembly can include a guard cover that provides shielding coverage, first and second fasteners disposed on opposite ends of the guard cover, a lever pivotably mounted to the guard cover, and a locking member configured to releasably lock the lever in place when the guard is in use. In operation, the first fastener can be fitted onto one end of the tool guard. Pivoting the lever can move the second fastener into engagement with the opposite end of the tool guard, allowing an operator to securely attach the guard cover to the tool guard, thereby providing modified shielding coverage for the tool. Pivoting the lever in the opposite direction can move the second fastener away, allowing the clip-on guard assembly to be detached from the tool guard.

According to examples, a power equipment (100) may include a base member (110), a drive shaft (220) to drive a cutting chain (114) over a chain bar (112), and an oil tank (120) mounted to the base member (110). A first portion (202) of an oil pump (200), an inlet hose (206), and an outlet hose (122) may be housed within the oil tank (120), in which the inlet hose (206) may supply oil contained in the oil tank (120) to the first portion (202) of the oil pump (200) and the outlet hose (122) may supply oil from the first portion (202) of the oil pump (200) to the cutting chain (114). By housing the first portion (202) of the oil pump (200), the inlet hose (206), and the outlet hose (122) within the oil tank (120), the size of a cutting head (102) of the power equipment (100) may significantly be reduced while also reducing the likelihood of the cutting head (102) snagging objects, such as tree limbs or branches.

An outdoor power equipment system includes: a motor; a power supply; and a user-engageable safety device, the safety device comprising: a rotatable member connected to a handle of the outdoor power equipment, wherein the rotatable member is configured to rotate about a rotation axis between a locked position and an unlocked position; a plunger operatively connected to the rotatable member such that rotation of the rotatable member causes the plunger to translate along the rotation axis of the rotatable member; and a switch, wherein: the plunger is configured to open the switch when the rotatable member is in the locked position to electrically connect the power supply to the motor, and wherein the plunger is configured to close the switch when the rotatable member is in the unlocked position to electrically isolate the power supply from the motor.

A portable electric pressing tool comprising: an electric motor; a pressing mechanism having a pair of jaws and a driver wherein the pressing mechanism is operatively coupled to the electric motor for causing axial displacement of the driver between a home position and an active position for actuating the jaws; a home position sensor for generating output indicative that the driver has reached the home position during a reset stage of operation in which the driver is moved towards the home position; and a controller for receiving motor turn information indicative of the number of turns of the electric motor and for controlling axial movement of the driver in use based only on the motor turn information and the output generated by the home position sensor.

A compacting power tool comprising: a housing; a motor mounted within or on the housing; a reciprocating drive mechanism coupled to the motor, wherein reciprocating drive mechanism comprises a reciprocating piston movable between a first position and a second position; a compacting foot coupled to the reciprocating drive mechanism and configured to reciprocate and engage a surface to be compacted when the motor is operating; a user operated switch for starting operation of the compacting power tool; and a controller configured to cause, in response to a signal from the user operated switch, the motor to gradually increase in speed up to an operating speed.

A power tool is provided including a brushless motor having a stator defining a plurality of phases, a rotor rotatable relative to the stator, and a plurality of power terminals electrically connected to the plurality of phases; a power unit having a plurality of power switches connected electrically between a power source and the plurality of power terminals and operable to deliver power to the motor; and a control unit interfaced with the power unit to output a drive signal to one or more of the plurality of power switches to drive the plurality of phases of the motor over a plurality of sectors of the rotor rotation, the control unit being configured to detect an initial position of the rotor, commutate the motor beginning at the initial position of the rotor using a low-speed motor commutation scheme until an output speed of the rotor exceeds a speed threshold, and commutate the motor based on a back-electromotive force (back-EMF) voltage of the motor after the output speed of the rotor exceeds the speed threshold, wherein in the low-speed commutation scheme, the control unit applies a first plurality of voltage pulses to a present sector of the plurality of sectors and a second plurality of voltage pulses to a next sector of the plurality of sectors, and detects a transition of the rotor from the present sector to the next sector based on motor current measurements associated with the first plurality of voltage pulses and the second plurality of voltage pulses.