ACTUATION LOCKOUT FOR A FASTENER-DRIVING TOOL

摘要

A fastener-driving tool including a housing, a power source including a reciprocating driver blade, a tool nose configured for receiving the driver blade for driving fasteners fed into the nose and a magazine configured to house a collation including a plurality of the fasteners. A workpiece contact element is movably connected to the nose and moves between a rest position and an actuated position when the workpiece contact element is pressed against a workpiece, the workpiece contact element moves to the actuated position. A lockout mechanism is operatively associated with the workpiece contact element and the magazine, and is in contact with the collation in a first position when fasteners are in the magazine and moves to a second position when a last fastener in the collation has been driven by the driver blade to block the workpiece contact element and prevent further actuation of the tool.

主权项

1. A fastener-driving tool comprising:
a housing; a power source associated with said housing and including a reciprocating driver blade; a tool nose connected to said housing and configured for receiving said driver blade for driving fasteners fed into said nose for each actuation of the tool; a magazine configured to house a collation including a plurality of the fasteners; a workpiece contact element movably connected to said nose, said workpiece contact element being movable between a rest position and an actuated position, upon engagement against a workpiece; and a lockout mechanism is operatively associated with the workpiece nose contact element and the magazine and is movable between a first position and a second position, said lockout mechanism being biased to said second position, wherein said lockout mechanism is in contact with the collation in said first position when fasteners are in the magazine and moves to said second position when a last one of the fasteners in the collation has been driven by said driver blade, and wherein in said second position, said lockout mechanism blocks said workpiece contact element to prevent said workpiece contact element from moving to said actuated position.