Patent ID: 8240535

Claim:
A staple gun tacker for driving staples comprising: a housing having a staple driving end including a staple discharge opening; a wire guide mounted in said housing at said staple driving end adjacent to the staple discharge opening for linear movement between extended and retracted positions, said wire guide having a free end including a recess for receiving a wire to be stapled to a workpiece and a pair of support surfaces respectively located on either side of the recess; said free end being located outside the housing and beneath the driving end thereof in the extended position of the wire guide and adjacent said discharge opening in the retracted position; and means for moving said wire guide generally linearly between said extended and retracted positions comprising a cam member rotatably mounted in the housing adjacent the path of travel of the wire guide, said cam member having an edge portion which extends laterally out of the housing on opposite sides of the housing to permit manual rotation thereof and having a substantially semi-circular slot formed therein located having one end of the slot being closer to the axis of rotation of the cam than the other end of the slot, and means for extending from the wire guide engaged in said slot whereby rotation of the cam causes movement of the wire guide between said extended and retracted position.