A staple-refill 11 is provided with: a casing 12 in which a plurality of sheet-type connected staples 10 are stacked; a staple inserting port 14; a staple discharge port 16; a cover member 15 which covers the sheet-type connected staples 10 in the casing 12 from a side of the staple inserting port 14; and a notch portion 18 formed in the casing 12 and extending from an edge of the staple inserting port 14 in an insertion direction.

An optimized nail gun firing structure, which includes a magazine, a guide plate connected to the top of the magazine, a striking pin guided for linear reciprocating motion by the guide plate, and a cover assembly connected to the guide plate. The magazine comprises a fixed plate, a movable plate, and a magazine seat rigidly connected to the bottom of the movable plate. A hook lock assembly forms a connection between the fixed plate and the magazine seat. Inside the magazine, a push plate is disposed, and a compression spring is configured between the push plate and the magazine seat, continuously pushing nails towards the guide plate. The guide plate comprises a separable first guide plate and a second guide plate. The first guide plate is connected to the fixed plate via fasteners, and the second guide plate is connected to the movable plate via fasteners.

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.

The invention relates to a nail passage mechanism used for a nail gun. The nail passage mechanism comprises a muzzle member having a nail hole, a muzzle cover disposed above the muzzle member, a nail passing channel formed between the muzzle member and the muzzle cover permitting a striking member to pass therethrough for striking a nail. The muzzle cover comprises a clearance groove permitting more than one tooth blocks located on the striking member to pass therethrough, and the clearance groove locates on a first side of the nail passing channel.

A stapling device has a housing including a contact surface and defining an ejection channel terminating in an ejection opening defined in the contact surface. An ejector is movable in the ejection channel between an upper position and a lower position. A magazine is removably attached to the housing and configured to, when attached to the housing and when storing one or more staples, position a first staple in the ejection channel. The magazine is removable from the housing via movement in a first direction followed by movement in a second direction. A drive is operably connected to the ejector and configured to move the ejector from the upper position to the lower position to, when the magazine is attached to the housing and storing the one or more staples, engage the first staple in the ejection channel and eject the first staple out of the ejection opening.

A fastener driver includes a housing, a cylinder disposed within the housing, a piston positioned and moveable within the cylinder, and a driver blade. The driver blade includes a body defining a first end having an aperture defined therein, a second end opposite the first end, and a plurality of teeth between the first and second ends. The aperture is sized to receive a fastener to attach the driver blade to the piston. The driver blade is moveable with the piston from a first position toward a second position along a longitudinal axis during a fastener driving operation. A nosepiece at least partially defining a fastener driving track through which fasteners are driven. A total length of the fastener driver as measured between a distal end of the nosepiece and a distal end of the cylinder is less than 11.4 inches (289.6 mm).