A fastener driver comprises a driver blade movable from a retracted position to a driven position and a lifter assembly for moving the driver blade from the driven position toward the retracted position. The fastener driver also includes a first sensor to detect the driver blade in the driven position, a latch which, in a locked position, maintains the lifter assembly in an engaged position, an actuator coupled to the latch for moving the latch between the locked position and a released position, in which the lifter assembly may move away from the driver blade, and a controller electrically connected with the first sensor and the actuator. In response to an absence of a signal from the first sensor after a predetermined time following initiation of a fastener driving operation, the controller triggers the actuator to move the latch from the locked position to the released position.

A driving tool comprises a tool main body that includes a driver for driving a U-shaped staple, and a main magazine for housing a plurality of staples that extends from the tool main body. The driving tool also comprises a sub-magazine to which a pusher and a staple guide are attachable. The pusher pushes the staples in the main magazine toward the tool main body. The staple guide is inserted between a pair of legs of the staple in the main magazine. The driving tool also comprises a guide mechanism for guiding the sub-magazine toward the tool main body from an opening position to a closing position with respect to the main magazine. The guide mechanism also guides the sub-magazine in a direction opposite to a driving direction while the sub-magazine moves from the opening position to the closing position.

A driving tool comprises a tool main body that includes a driver for driving a U-shaped staple, and a main magazine for housing a plurality of staples that extends from the tool main body. The driving tool also comprises a sub-magazine to which a pusher and a staple guide are attachable. The pusher pushes the staples in the main magazine toward the tool main body. The staple guide is inserted between a pair of legs of the staple in the main magazine. The driving tool also comprises a guide mechanism for guiding the sub-magazine toward the tool main body from an opening position to a closing position with respect to the main magazine. The guide mechanism also guides the sub-magazine in a direction opposite to a driving direction while the sub-magazine moves from the opening position to the closing position.

A powered staple driver includes a magazine configured to receive staples and a nosepiece having a staple driving channel from which consecutive staples from the magazine are driven, the staple driving channel extending along a driving axis. The magazine obliquely extends from the nosepiece in both a first plane containing the driving axis and a second plane that is perpendicular to the driving axis.

A powered staple driver includes a magazine configured to receive staples and a nosepiece having a staple driving channel from which consecutive staples from the magazine are driven, the staple driving channel extending along a driving axis. The magazine obliquely extends from the nosepiece in both a first plane containing the driving axis and a second plane that is perpendicular to the driving axis.

A fastener driving tool with a hanger attachment that is rotatable around the handle of the tool. The hanger is configured to fit a 24 rafter or joist on either side of the tool. The rotatable hanger allows for this flexibility in hanging the tool securely on a jobsite. The hanger has a plurality of designed stop positions (detents) around the handle. A user rotating the hanger around the handle will feel the hanger become more secure at one of these designed stop (detent) positions.

A fastener driving tool with a hanger attachment that is rotatable around the handle of the tool. The hanger is configured to fit a 24 rafter or joist on either side of the tool. The rotatable hanger allows for this flexibility in hanging the tool securely on a jobsite. The hanger has a plurality of designed stop positions (detents) around the handle. A user rotating the hanger around the handle will feel the hanger become more secure at one of these designed stop (detent) positions.

A portable linear fastener driving tool is provided that drive staples, nails, or other linearly driven fasteners. The tool uses a gas spring principle, in which a cylinder filled with compressed gas is used to quickly force a piston through a driving stroke movement, while a driver also drives a fastener into a workpiece. The piston/driver is then moved back to its starting position by use of a rotary-to-linear lifter, and the piston again compresses the gas above the piston, thereby preparing the tool for another driving stroke. The driver has protrusions along its edges that contact the lifter, which lifts the driver during a return stroke. A pivotable latch is controlled to move into either an interfering position or a non-interfering position with respect to the driver protrusions, and acts as a safety device, by preventing the driver from making a full driving stroke at an improper time.

A portable linear fastener driving tool is provided that drive staples, nails, or other linearly driven fasteners. The tool uses a gas spring principle, in which a cylinder filled with compressed gas is used to quickly force a piston through a driving stroke movement, while a driver also drives a fastener into a workpiece. The piston/driver is then moved back to its starting position by use of a rotary-to-linear lifter, and the piston again compresses the gas above the piston, thereby preparing the tool for another driving stroke. The driver has protrusions along its edges that contact the lifter, which lifts the driver during a return stroke. A pivotable latch is controlled to move into either an interfering position or a non-interfering position with respect to the driver protrusions, and acts as a safety device, by preventing the driver from making a full driving stroke at an improper time.

A portable linear fastener driving tool is provided that drive staples, nails, or other linearly driven fasteners. The tool uses a gas spring principle, in which a cylinder filled with compressed gas is used to quickly force a piston through a driving stroke movement, while a driver also drives a fastener into a workpiece. The piston/driver is then moved back to its starting position by use of a rotary-to-linear lifter, and the piston again compresses the gas above the piston, thereby preparing the tool for another driving stroke. The driver has protrusions along its edges that contact the lifter, which lifts the driver during a return stroke. A pivotable latch is controlled to move into either an interfering position or a non-interfering position with respect to the driver protrusions, and acts as a safety device, by preventing the driver from making a full driving stroke at an improper time.