A power tool includes an electric motor, an output member selectively driven by the electric motor and a battery receptacle configured to receive a battery. The power tool also includes a switch trigger moveable between a first position and a second position. The switch trigger inhibits electrical communication between the battery and the electric motor while the switch trigger is in the first position. The switch trigger operates a switch to provide electrical communication between the electric motor and the battery while the switch trigger is in the second position. A lock actuator prevents movement of the switch trigger to the second position while the lock actuator is in a locked position, and the lock actuator permits movement of the switch trigger to the second position while in an unlocked position. The lock actuator is biased into the unlocked position while the battery is positioned in the receptacle.

An electronic switch module for a power tool is provided including a housing, a trigger moveable relative to the housing, a magnet being moveable relative to the housing with the trigger along a movement axis, and a linear hall sensor fixed relative to the housing and intersecting the movement axis of the magnet. The linear hall sensor magnetically detects a linear position of the magnet along the movement axis and outputs a voltage signal based on the detected linear position.

An electronic switch module for a power tool is provided including a module body, a trigger moveable relative to the module body, a magnet being moveable relative to the module body with the trigger along a movement axis, and a linear Hall sensor fixed relative to the module body and intersecting the movement axis of the magnet. The linear Hall sensor magnetically detects a linear position of the magnet along the movement axis and outputs a voltage signal based on the detected linear position.

A trigger switch may include a first urging member urging a trigger, a shaft including a first end attached to the trigger, a first movable member connected to a second end of the shaft, a second movable member, a second urging member located between the first movable member and the second movable member, and a contact portion to be in contact with the second movable member moved in a depressing direction. In response to a depressing operation on the trigger, the first movable member, the second movable member, and the second urging member move in the depressing direction until the second movable member comes in contact with the contact portion. In response to an additional depressing operation on the trigger with the second movable member in contact with the contact portion, the first movable member moves in the depressing direction, and the second urging member urges the first movable member.

The invention relates to an electrical switch (30) for an electrical appliance (2), in particular for a power tool, which has at least two switching contacts (34, 36), which can be jointly moved between a switched-off position (38), in which the switching contacts (34, 36) have no electrical connection to a counter contact (42) of the switch (30), and a switched-on position (40), in which the switching contacts (34, 36) are electrically connected to the counter contact (42). To maintain a contact resistance of the switch (30) at a largely constant value over the service life, it is proposed to arrange and/or design the switching contacts (34, 36) and/or the counter contact (42) such that, when the switch (30) transitions between the switched-off position (38) and the switched-on position (40), the switching contacts (34, 36) successively enter into electrical contact with the counter contact (42) or successively break the electrical contact.

A contact mechanism includes an opening/closing fixed contact, an opening/closing movable contact opposed to the opening/closing fixed contact, and a permanent magnet configured to extend an arc that occurs between the opening/closing fixed contact and the opening/closing movable contact in a predetermined direction. In particular, an arc that occurs from contact surface regions where the opening/closing fixed contact and the opening/closing movable contact make contact with each other is extended by a magnetic force of the permanent magnet and moved to non-contact surface regions where the opening/closing fixed contact and the opening/closing movable contact make no contact with each other.

A switch, with enhanced operability and capable of changing control circuits independently by one hand, has a printed circuit board, first and second wiring patterns provided on one surface of the printed circuit board, first and second crank members supported for rotation above the printed circuit board, a first switching slider configured to rotate with the first crank member as the first switching slider slides an the first wiring pattern; and a second switching slider configured to rotate with the first crank member as the second switching slider slides on the second wiring pattern. The first and second crank members are positioned at respective positions where they are driven by one hand of an operator.

An electric hand tool has an electric consumer, a movable operating element and a control unit for controlling a current flow between the energy store and the consumer on the basis of the position of the operating element. The control unit is constructed separately from the operating element and the mechanical position of the operating element is converted into an electrical control signal in the control unit.

An electric tool includes a brushless motor and an output part, which is driven by the brushless motor and to which a tip tool is mounted, and a tumbler switch. The tumbler switch applies, to the control unit, a stop signal for stopping the brushless motor at a neutral position, a forward rotation signal for forward rotating the brushless motor by an operation in a first direction, and a reverse rotation signal for reversely rotating the brushless motor by an operation in a second direction.

An electric switch, in particular for manually operated electric tools or appliances with an electric motor, is switchable from outside by means of a plunger. A changeover device is provided for setting the direction of rotation of the electric motor, which changeover device can be activated for example by a tappet arranged on the outside. The switch is constructed very compactly, which simplifies the sealing of a switch of this type.