Stapler with reversible electric motor

A stapler for driving staples into objects (33;

• 33′), such as sheaves of papers, said stapler comprising an anvil element (16;
• 16′), which has a means (18, 18′) for clinching driven-in staples, and a stapling element (1;
• 1′), which cooperates with the anvil element and which contains staples, one of the anvil element (16;
• 16′) and the stapling element (1;
• 1′) being fixedly arranged in the stapler, and these elements being movable relative to each other between a starting position and a working position, in which they are applied against an object (33;
• 33′), when this is placed in the stapler between the anvil element (16;
• 16′) and the stapling element (1;
• 1′) to be stapled, and said stapler further comprising a driver (8;
• 8′), which is reciprocatingly arranged on the stapling element (1;
• 1′) and which is arranged to drive a staple into the object in the direction of the anvil element (16;
• 16′), and an operating element (10;
• 10′), which is arranged to reciprocate the driver (8;
• 8′) and which, for this purpose, is movable relative to the stapling element (1;
• 1′);
• the anvil element (16;
• 16′) and the operating element (10;
• 10′) being movable back and forth relative to the stapling element (1;
• 1′) in one and the same path of motion, and the anvil element (16;
• 16′) and the operating element (10;
• 10′) being movable relative to each other in said path of motion with the aid of a reversible driving means (19, 23, 26, 27, 29, 30, 32;
• 19′, 23′, 26′, 27′, 29′, 30′, 32′),
• characterised in that the operating element (10;
• 10′) is movably connected to the stapling element (1;
• 1′) and the anvil element (16;
• 16′) in such a manner that its inertia against movement relative to the stapling element (1;
• 1′) is greater than its inertia against movement relative to the anvil element (16;
• 16′), which means that, when the driving means (19, 23, 26, 27, 29, 30, 32;
• 19′, 23′, 26′, 27′, 29′, 30′, 32′) is driven in one direction, the anvil element (16;
• 16′) and the stapling element (1;
• 1′) are first moved relative to each other from the starting position to the working position and the operating element (10;
• 10′) is subsequently moved relative to the stapling element (1;
• 1′) to move the driver (8;
• 8′) in its drive-in direction, and that, when the driving means after reversal is driven in the other direction, the anvil element (16;
• 16′) and the stapling element (1;
• 1′) are first moved relative to each other from the working position to the starting position and the operating element (10;
• 10′) is subsequently moved relative to the stapling element (1;
• 1′) in order to move the driver (8;
• 8′) in the direction opposite to the drive-in direction, and
• that the driving means (19, 23, 26, 27, 29, 30, 32;
• 19′, 23′, 26′, 27′, 29′, 30′, 32′) is adapted to be reversed, on the one hand, when the operating element (10;
• 10′), when driving the driving means in said one direction, reaches a first position, in which it cannot move the driver (8;
• 8′) any further in its drive-in direction and, on the other hand, when the operating element (10;
• 10′), when driving the driving means in said other direction, reaches a second position, in which it cannot move the driver (8;
• 8′) any further in the direction opposite to the drive-in direction.