A driving tool including a timer assembly less susceptible to heat operates at a stable operating speed. The driving tool includes a trigger, a contact arm, and a timer assembly that operates in response to the trigger moving to a trigger-on-position with the contact arm remaining at an arm-off-position. The timer assembly includes a flywheel rotatable in response to the trigger moving to the trigger-on-position, and a contact restrictor movable between an unlock position at which the contact restrictor allows the contact arm to move to an arm-on-position and a lock position at which the contact restrictor restricts the contact arm from moving to the arm-on-position. The contact restrictor takes a predetermined period to move from the unlock position to the lock position in response to the trigger moving to the trigger-on-position. The predetermined period is defined by an inertial force generated by rotation of the flywheel.

A compressed air nailer comprises a control line configured to trigger a driving process when a valve pin is displaced relative to a valve sleeve into an actuated position. The valve sleeve is configured to move between a triggering position and a locked position. A switching surface is coupled to at least one of a trigger and a placing sensor and configured to actuate the valve pin. An outer sleeve is configured to guide the valve sleeve. The switching surface is positioned at a switching surface position relative to the outer sleeve when both the trigger and the placing sensor are actuated. The switching surface is configured to displace the valve pin into the actuated position when the valve sleeve is positioned in the triggering position. The switching surface does not displace the valve pin into the actuated position when the valve sleeve is positioned in the locked position.

A fastening tool for driving a fastener into a workpiece is described herein. The fastening tool includes a contact trip, a magnet, and a magnetometer. The contact trip is disposed at a first end of the fastening tool and is configured to move toward a second end of the fastening tool opposite of the first end when the contact trip engages the workpiece. The magnet is configured to generate a magnetic field. The magnet is coupled to the contact trip such that movement of the contact trip causes the magnet to move. The magnetometer is configured to detect a change in the magnetic field generated by the magnet when the magnet moves relative to the magnetometer and, based on the detected change in the magnetic field, to generate a signal indicating when the contact trip engages the workpiece.

A tool is provided for applying fasteners to a workpiece. The tool as a magazine that carries multiple fasteners and is carried by a housing. A driver blade is provided to drive a lead fastener into a workpiece. The driver blade has a driving edge with a profile that includes driving projections, having curved contact surface for contact with curved edges of the fastener, and a relief portion therebetween that is recessed relative to both projections and contact surfaces. Further, the tool includes a lockout assembly for limiting movement of the driver blade and contact trip, thereby limiting activation of the motor. The pusher may include a pusher lockout surface that is designed for movement in an opposite direction to a feed direction by the contact trip as well as configured to slide over a locking art of the contact trip when the fasteners are empty or nearly empty.

An electric tool includes a motor, an operation part provided to be operable by a user, a motor drive control unit configured to perform control of driving the motor in response to the operation part being operated, a temperature sensor, and a temperature determination unit configured to determine overheating of the motor. The temperature determination unit is configured to estimate a temperature of the motor based on a drive situation of the motor and a detection result of the temperature sensor, and to determine the overheating of the motor based on the estimated temperature.

An electric nail gun includes a supporting frame, a swing arm, a driving unit, and a safety unit. The swing arm has a driven segment and is pivotable relative to the supporting frame between a standby position and a shooting position. The driving unit includes a driving member in contact with the driven segment of the swing arm and operable for moving the swing arm towards the shooting position. The safety unit has a stopping member that is driven by the driving member to move relative to the driven segment between a stopping position, where the stopping member blocks movement of the driven segment, and a releasing position, where the movement of the swing arm towards the shooting position is permitted.

A control and protection mechanism and a nail gun having the same. The control and protection mechanism includes first and second micro-motion switches, a toggle block, a lock pin, an actuating member, a micro-motion contact and a driving rod. The switch bracket is attached to the main body; the first and second micro-motion switches are fixed on the switch bracket; the toggle block is rotatably attached to the switch bracket, and includes a lock groove, a trigger end and a toggle end. The toggle end is operably coupled to the first micro-motion switch and the trigger end extends into inside the main body such that when the piston moves in the cylinder to a position, the piston pushes the trigger end to prompt the toggle block to rotate and therefore the toggle end to move, thereby causing the first micro-motion switch to change its switch state.

A nail gun includes a nail gun body unit, and a magazine unit. The nail gun body unit has a drive module, a nail-discharging section, and a firing channel that is formed in the nail-discharging section, and that extends along a firing axis. The nail-discharging section has a base segment, and a guide segment having a guide surface. The base segment has a tip section that has a tip face. The tip face and the guide surface have a height difference in the direction of the firing axis. The magazine unit is connected to the nail gun body unit, and is adapted to accommodate nails. The drive module is adapted for firing the nails that are positioned within the firing channel to move along the firing axis.

A nail gun includes a frame unit, a flywheel, and a nail-striking device that includes an actuation unit, an impact member and an accidental discharge prevention unit. The actuation unit includes a safety subunit. The impact member has a confining portion. The accidental discharge prevention unit includes a restraining member located between the confining portion of the impact member and the safety subunit. The actuation unit is operable to convert the restraining member from a restraining state, in which the restraining member restrains movement of the confining portion of the impact member, to a releasing state, in which the movement of the confining portion of the impact member is permitted.

A nail gun nozzle mechanism includes a clamping wall, a retaining wall, and a switch unit. The clamping wall defines a firing space. The retaining wall defines a withdrawn space that is in spatial communication with the firing space. The switch unit includes a linkage member, and a bracket member. The bracket member is movable relative to the clamping wall between a firing position, where the bracket member is distal from the clamping wall and is disposed in the withdrawn space, and a non-firing position, where the bracket member is proximate to the clamping wall and blocking at least a portion of the firing space. The linkage member resiliently biases the bracket member toward the non-firing position.