Fastener driving tool

A fastener driving tool for driving fasteners into a workpiece and comprising:

• a body;
• a drive assembly supported in said body and including a driver blade;
• first and second nose members normally adjacent one another to define a drive track for reciprocal movement of the driver blade, said first nose member being supported by said body;
• a magazine assembly for supporting a supply of fasteners and advancing them one-at-a-time into said drive track;
• said magazine assembly including a frame portion fixed with respect to said body;
• first and second track members cooperating to define a slideway for fasteners in said magazine;
• said first track member being movable relative to said second track member for selectively opening and closing said slideway for loading of fasteners into the magazine assembly;
• said second nose member being supported on said second track member, and
• said second track member being movable relative to said frame portion permitting separation of the nose members and clearing of said drive track.

A magazine for a fastener driving tool including a frame and of the type including a drive member movable through a drive path for driving fasteners with shanks into a workpiece, said magazine supported by said frame and comprising:

• a feed track structure opening into the drive path and slidably supporting a supply of fasteners;
• pusher means movable along said feed track structure and engageable with fasteners supported in the feed track structure;
• biasing means coupled to said pusher means for biasing the pusher means toward the drive path;
• a first elongated track element slidably mounted on said frame extending from the drive path and defining part of said feed track structure;
• said first element being generally J-shaped in section with the base of the J defining a slide track for the workpiece entering end of the fastener shanks and the leg of the J slidably supporting one side of the shanks;
• a second elongated track element extending parallel to the first element and slidably supporting the opposite side of the fastener shanks;
• and
• means for sliably mounting said second elongated track element relative to said frame,
• said second track element being withdrawable away from said drive path for access to said first track element.