Abstract: A power tool such as a table saw includes a cutting blade, a motor that drives the blade, and a dust management assembly for collecting cutting debris. The position and angle of the blade can be adjusted relative to a table top of the saw. The dust management assembly is disposed below the table top in such a way so as to change positions in concert with the blade, and includes a blade cover that surrounds a portion of the blade; a dust shield that is pivotably connected to the table top in such a way that an inner surface of the dust shield faces toward an outer wall of the blade cover; and a dust port that is detachably connected to the blade cover and is configured collect debris generated by a cutting action of the blade.

Abstract: A signal switch for a power tool has a paddle supported by a rocker that extends into a switch housing to pivot an actuating member. A circuit board is attached to a bottom of the switch. At least one micro-switch extends from the circuit board into the switch in position to be actuated by the actuating member depending on a position of the paddle. The circuit board includes a connector that is configured to connect to a cable, such as a ribbon cable. Circuit traces on the circuit board are electrically connected to the micro-switches and the electrical connector. The interior of the switch housing is sealed from the exterior environment so that the mechanical components of the switch are shielded from the environment.

Abstract: A power tool apparatus includes at least a power tool, a table, a bevel adjustment assembly, and a bevel stop. The table includes a work surface and a panel portion. The panel portion has an exterior surface. The bevel adjustment assembly is configured to move to various positions along a pathway of the panel portion. The tool is configured to move to various bevel angles as the bevel adjustment assembly moves to the various positions. The bevel stop is disposed on the exterior surface. The bevel stop includes a stopper that is configured to move to a blocking position in which the stopper obstructs a first section of the pathway to stop the bevel adjustment assembly from moving beyond a first position of the pathway along a first direction such that the saw blade is bounded at a first bevel angle corresponding to the first position.

Abstract: A signal switch for a power tool has a paddle supported by a rocker that extends into a switch housing to pivot an actuating member. A circuit board is attached to a bottom of the switch. At least one micro-switch extends from the circuit board into the switch in position to be actuated by the actuating member depending on a position of the paddle. The circuit board includes a connector that is configured to connect to a cable, such as a ribbon cable. Circuit traces on the circuit board are electrically connected to the micro-switches and the electrical connector. The interior of the switch housing is sealed from the exterior environment so that the mechanical components of the switch are shielded from the environment.

Abstract: A power tool includes a motor; an arbor attachment mechanism that includes a shaft configured to be driven by the motor about a spin axis. The arbor attachment mechanism is configured to hold a blade onto the shaft. The power tool includes a blade size limiter that is configured to prevent attachment of a blade with a radius greater than a predetermined size, and is configured to be connected to the arbor attachment mechanism independently of the attachment of the blade to the arbor attachment mechanism and such that the blade size limiter is at a distance from the spin axis of the shaft.

Abstract: Locking mechanisms are provided for locking the position of a miter gauge assembly to a sliding table of a table saw. The mechanisms are biased to a locking position and this bias can provide a sensible indication that the lock has been engaged. The locking mechanisms are configured to engage the guide bar of the miter gauge assembly at different locations along the length of the guide bar, particularly by engaging a series of spaced apart engagement notches. The locking mechanism thus allows the miter gauge assembly to be locked at several positions along the length of the sliding table, from a fully inboard position to a position in which the miter gauge assembly projects beyond the end of the sliding table. The locking mechanism is provided in different embodiments with manually actuated components that can be push/pull, pivoting, rotating or sliding.

Abstract: A table saw includes a table assembly having a top surface, a cutting assembly, and an adjustment assembly. The cutting assembly is arranged below the table assembly and is movable relative to the top surface. The adjustment assembly includes an input member connected to a first gear and an output member connected to a second gear and to the cutting assembly. The first and second gears include first and second gear bodies and first and second pluralities of pins projecting from the gear bodies. Rotation of the input member causes rotation of the first gear about a first axis, and rotation of the second gear about a second axis causes rotation of the output member which causes the cutting assembly to move. The second pins engage the first pins in such a way that rotation of the first gear causes rotation of the second gear.

Abstract: A table saw includes a base assembly, a saw assembly, which is supported by the base assembly and includes a saw, and a table assembly supported by the base assembly. The table assembly includes a rip fence, a table extension system, and a table top defining an opening through which the saw extends. The table extension system includes a first stage assembly supported by the table top and movable relative to the table top between a first stage retracted position and a first stage extended position, and a second stage assembly supported by the first stage assembly and movable relative to the first stage assembly between a second stage retracted position and a second stage extended position. The rip fence is supported by and movable relative to the second stage assembly.

Abstract: A safety system is provided for a power tool having a motor-driven cutting blade, a safety mechanism operable by a controller to stop and/or move the cutting blade and a blade guard. The safety system includes an electrically active surface provided on the blade guard that is configured to change an electrical characteristic in response to contact between the body of an operator and the active surface. An active surface controller is operable to provide electrical power to the electrically active surface, to generate a signal in response to the change in the electrical characteristic, the signal indicative of an unsafe condition, and to transmit the signal to the controller for the safety mechanism.

Abstract: A guide assembly for aligning a workpiece on a table of a saw device includes a guide member having a first end and a second end along the longitudinal axis that is sized to span a dimension of the table. The guide member includes first and second locking mechanisms located at opposite ends of the guide member that are operable to secure the guide member to the table. The guide assembly further includes a fine adjustment mechanism incorporated into the guide member that is operable when the first and second locking mechanisms are locked. The adjustment assembly includes a side plate movably mounted to the guide member between the first and second ends, and a movement mechanism for moving the side plate relative to the guide member in a direction perpendicular to the longitudinal axis.

Abstract: A table saw includes a base assembly, a table assembly supported by the base assembly, and a saw assembly supported by the base assembly. The saw assembly has a motor having a motor output shaft and a power train assembly. The motor is configured to rotate the motor output shaft at a first rotational speed. The power train assembly includes an intermediate shaft, a first gear stage, an arbor shaft, and a second gear stage. The first gear stage is configured to transmit rotation of the motor output shaft at the first rotational speed to rotation of the intermediate shaft at a second rotational speed, which is less than the first rotational speed. The second gear stage is configured to transmit rotation of the intermediate shaft at the second rotational speed to rotation of the arbor shaft at a third rotational speed, which is greater than the second rotational speed.

Abstract: An output member is configured to transfer rotation and torque from a motor of a power tool to a working element of the power tool. The working element is configured to contact a workpiece. The output member includes a hub, an outer shell, and an isolator. The hub is configured to be driven rotationally about an axis of rotation by the motor of the power tool. The outer shell is configured to be coupled to the working element of the power tool. The isolator is interposed between the hub and the outer shell and is configured to electrically isolate the hub from the outer shell.

Abstract: A power tool has a base defining a work surface, a rotary cutting blade extending through an opening in the work surface, a drive motor for imparting rotational movement to the cutting blade and a power train coupled between the drive motor and the cutting blade to transmit rotation movement from the drive motor to the cutting blade. A swing arm assembly carries the cutting blade and is pivotably supported on the base at a pivot axis. In one aspect of the present disclosure, the power tool includes a safety system operable in response to an emergency signal that includes a mechanism for stopping the rotation of the cutting blade, whereby the rotational inertia of the cutting blade is converted after the rotation is stopped to pivoting of the swing arm assembly carrying the blade when the rotation of the blade is stopped.

Abstract: A table saw includes a table assembly having a top surface, a cutting assembly, and an adjustment assembly. The cutting assembly is arranged below the table assembly and is movable relative to the top surface. The adjustment assembly includes an input member connected to a first gear and an output member connected to a second gear and to the cutting assembly. The first and second gears include first and second gear bodies and first and second pluralities of pins projecting from the gear bodies. Rotation of the input member causes rotation of the first gear about a first axis, and rotation of the second gear about a second axis causes rotation of the output member which causes the cutting assembly to move. The second pins engage the first pins in such a way that rotation of the first gear causes rotation of the second gear.

Abstract: A table saw includes a base assembly, a table assembly supported by the base assembly, and a saw assembly supported by the base assembly. The saw assembly has a motor having a motor output shaft and a power train assembly. The motor is configured to rotate the motor output shaft at a first rotational speed. The power train assembly includes an intermediate shaft, a first gear stage, an arbor shaft, and a second gear stage. The first gear stage is configured to transmit rotation of the motor output shaft at the first rotational speed to rotation of the intermediate shaft at a second rotational speed, which is less than the first rotational speed. The second gear stage is configured to transmit rotation of the intermediate shaft at the second rotational speed to rotation of the arbor shaft at a third rotational speed, which is greater than the second rotational speed.

Abstract: A table saw includes a base assembly, a saw assembly, which is supported by the base assembly and includes a saw, and a table assembly supported by the base assembly. The table assembly includes a rip fence, a table extension system, and a table top defining an opening through which the saw extends. The table extension system includes a first stage assembly supported by the table top and movable relative to the table top between a first stage retracted position and a first stage extended position, and a second stage assembly supported by the first stage assembly and movable relative to the first stage assembly between a second stage retracted position and a second stage extended position. The rip fence is supported by and movable relative to the second stage assembly.

Abstract: An adjustable stop assembly includes a body, a cam, a lock knob, an adjustable rod, and an adjusting knob. The cam is movable into a locked position in which the hook portion is secured to a rail and an unlocked position in which the hook portion is spaced from the rail. The lock knob is configured to interact with the cam. The adjustable rod extends outward from a first side of the body by a first extension amount and a second side of the body by a second extension amount. The adjusting knob is configured to move the adjustable rod to adjust the first extension amount and the second extension amount. A minor sector portion of the adjusting knob is exposed by an opening in the body while a major sector portion of the adjusting knob is covered by the body at a given instance.

Abstract: An adjustable stop assembly includes a body, a cam, a lock knob, an adjustable rod, and an adjusting knob. The cam includes a hook portion. The cam is movable into a locked position in which the hook portion is secured to a rail portion of the rail and an unlocked position in which the hook portion is spaced from the rail. The lock knob is configured to interact with the cam to provide a locked state in which the cam is in the locked position and an unlocked state in which the cam is in the unlocked position. The adjustable rod extends outward from a first side of the body by a first extension amount and a second side of the body by a second extension amount. The adjusting knob is configured to move the adjustable rod to adjust the first extension amount and the second extension amount.

Abstract: A power tool includes a motor; an arbor attachment mechanism that includes a shaft configured to be driven by the motor about a spin axis. The arbor attachment mechanism is configured to hold a blade onto the shaft. The power tool includes a blade size limiter that is configured to prevent attachment of a blade with a radius greater than a predetermined size, and is configured to be connected to the arbor attachment mechanism independently of the attachment of the blade to the arbor attachment mechanism and such that the blade size limiter is at a distance from the spin axis of the shaft.

Abstract: An adjustable miter gauge for use with a table saw includes a miter attachment and an adjustable guide bar coupled to the miter attachment. The miter attachment rests on a working surface of the table saw. The guide bar is received in a slot in the working surface. The guide bar includes a main body, which has first and second surfaces parallel to side walls of the slot, an adjustable body, which has a third surface parallel to the first surface, and a deformable biasing member. The adjustable body is coupled to the main body and slidable between a first position, wherein the second and third edge surfaces are coplanar, and a second position, wherein the second and third edge surfaces are not coplanar. The biasing member is arranged between the main body and the adjustable body and biases the adjustable body toward the second position.