Fastener driving device with mode selector and trigger interlock

A fastener driving device comprising:

• a frame;
• a fastener driver reciprocally mounted in the frame, the fastener driver constructed and arranged to drive a fastener into a workpiece during a drive stroke;
• and
• a trigger assembly comprising
• a trigger lever configured to be moved to actuate the fastener driving device,
• a mode selector movably mounted to the frame, the mode selector being configured to move to select between a first mode of operation of the fastener driving device and a second mode of operation of the fastener driving device, and
• a trigger lock mounted to the frame, the trigger lock comprising a trigger lock pin and a trigger lock handle at one end of the trigger lock pin, the trigger lock being movable relative to the trigger lever between a first position in which the trigger lock pin does not interfere with the trigger lever and allows movement of the trigger lever to actuate the fastener driving device and a second position in which the trigger lock pin interferes with the trigger lever and prevents movement of the trigger lever,
• wherein, when the trigger lock is in the first position, the trigger lock handle is engaged with the mode selector to prevent the mode selector from moving, and
• wherein, when the trigger lock is in the second position, the trigger lock handle is disengaged from the mode selector to permit movement of the mode selector to select the mode of operation of the fastener driving device.