Patent ID: 7950558
Filing Date: 2011-05-31
Classification: B25C

Abstract:
1. A spring actuated stapler, comprising: a housing body; a handle pivotably attached to the housing; a striker movable vertically in the housing between a normal initial upper position above a staple track and a lower position in front of the staple track; a power spring disposed inside the housing body; the handle including a pressing area, the handle linked to the power spring wherein pressing the handle from an initial handle rest position away from the housing to a pressed handle position near the housing causes the power spring to move to deflect and store energy as the striker remains stationary within the housing, and at a predetermined position of the handle the striker is suddenly released to move to the lower striker position under bias of the power spring; and a latch holding the striker in the upper rest position as the power spring deflects, wherein the latch is biased by a downward force from the striker to disengage from the striker; a latch holder immediately adjacent to and behind the striker, the latch holder holding the latch against the bias on the latch wherein the latch remains engaged to the striker; and wherein the latch holder is separately movable from each of the striker and the latch, and the latch holder is movable within the housing from an initial position toward an actuated position, the striker remaining in the normal initial upper position within the housing when the latch holder is so moved, the latch holder, in the latch holder initial position, retaining the latch to hold the striker in the normal initial upper position, and the latch holder being actuated at the predetermined position of the handle to allow the striker to move toward the lower position.