Importance

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Abstract

A stapler for driving staples into objects comprises an anvil element (16) and stapling element (1), which cooperates with the anvil element and which contains staples. The stapler further comprises a driver (8), which is reciprocatingly arranged on the stapling element (1) and which is arranged to drive a staple into the object in the direction of the anvil element. An operating element (10) is arranged to reciprocate the driver (8). The anvil element (16) and the operating element (10) are movable back and forth relative to the stapling element (1) in one and the same path of motion. The anvil element (16) and the operating element (10) are movable relative to each other in this path of motion with the aid of reversible driving elements (19, 23, 26, 27, 29, 30, 32). The inertia of the operating element (10) against movement relative to the stapling element (1) is greater than its inertia against movement relative to the anvil element (16). The driving elements (19, 23, 26, 27, 29, 30, 32) are adapted to be reversed, on the one hand, when in a first position the operating element (10) cannot move the driver (8) any further in its drive-in direction and, on the other hand, when in a second position it cannot move the driver (8) any further in the opposite direction.

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First Claim