Powered fastener driver

A powered fastener driver comprising:

• a housing;
• a nosepiece extending from the housing;
• a workpiece contact bracket slidably disposed on the nosepiece;
• a driver blade movable within the nosepiece between a top-dead-center (TDC) position and a bottom-dead-center (BDC) position;
• a piston coupled to the driver blade for movement therewith;
• a driver cylinder within which the piston is movable and in fluid communication with a pressurized gas acting on the piston;
• a magazine coupled to the nosepiece in which collated fasteners are receivable;
• a fastener delivery mechanism coupled to the nosepiece for individually transferring collated fasteners in the magazine to a fastener driving channel in the nosepiece;
• a nosepiece access door pivotably disposed on the nosepiece to provide access to the fastener driving channel;
• and
• a dry-fire lockout lever pivotably disposed on the nosepiece access door adjacent the fastener driving channel, wherein the dry-fire lockout lever is movable between:
• a first bypass position in which movement of the workpiece contact bracket is not obstructed and in which the dry-fire lockout lever is engaged with a first fastener adjacent the fastener driving channel, and
• a second bypass position in which movement of the workpiece contact bracket is not obstructed and in which the dry-fire lockout lever is engaged with a second fastener within the fastener driving channel,
• wherein the dry-fire lockout lever is entirely removed from the fastener driving channel when in the first bypass position, and wherein the dry-fire lockout lever is at least partially positioned within the fastener driving channel when in the second bypass position.

A powered fastener driver comprising:

• a housing;
• a nosepiece extending from the housing;
• a workpiece contact bracket slidably disposed on the nosepiece;
• a driver blade movable within the nosepiece between a top-dead-center (TDC) position and a bottom-dead-center (BDC) position;
• a piston coupled to the driver blade for movement therewith;
• a driver cylinder within which the piston is movable and in fluid communication with a pressurized gas acting on the piston;
• a magazine coupled to the nosepiece in which collated fasteners are receivable;
• a fastener delivery mechanism coupled to the nosepiece for individually transferring collated fasteners in the magazine to a fastener driving channel in the nosepiece;
• a nosepiece access door pivotably disposed on the nosepiece between a closed position preventing access to the fastener driving channel and an open position providing access to the fastener driving channel;
• a latch assembly at least partially supported by the nosepiece access door and configured to maintain the nosepiece access door in the closed position;
• and
• a dry-fire lockout lever pivotably disposed on the nosepiece access door on an opposite side of the nosepiece access door from the latch assembly,
• wherein the workpiece contact bracket engages the dry-fire lockout lever in response to upward movement of the workpiece contact bracket relative to the nosepiece to maintain the dry-fire lockout lever in a first bypass position, in which the dry-fire lockout lever is prevented from entering the fastener driving channel to be contacted by the driver blade as it moves toward the BDC position.

A powered fastener driver comprising:

• a housing;
• a nosepiece extending from the housing;
• a workpiece contact bracket slidably disposed on the nosepiece and including a cam portion;
• a driver blade movable within the nosepiece between a top-dead-center (TDC) position and a bottom-dead-center (BDC) position;
• a piston coupled to the driver blade for movement therewith;
• a driver cylinder within which the piston is movable and in fluid communication with a pressurized gas acting on the piston;
• a magazine coupled to the nosepiece in which collated fasteners are receivable;
• a fastener delivery mechanism coupled to the nosepiece for individually transferring collated fasteners in the magazine to a fastener driving channel in the nosepiece;
• a nosepiece access door pivotably disposed on the nosepiece to provide access to the fastener driving channel;
• and
• a dry-fire lockout lever pivotably disposed on the nosepiece access door,
• wherein the cam portion of the workpiece contact bracket engages the dry-fire lockout lever in response to upward movement of the workpiece contact bracket relative to the nosepiece to maintain the dry-fire lockout lever in a bypass position in which movement of the workpiece contact bracket is not obstructed and the dry-fire lockout lever extends at least partially into the fastener driving channel.