Abstract: A stapler (1) by which a workpiece (11), preferably a sheaf of papers, is stapled together with a staple, which stapler (5) comprises a stapling head (2) accommodating staples and a driver (6) and connected pivotably by a pivot pin (4) to a bottom part (3) which comprises a lower element (9) and an upper element (8) which are connected to one another in such a way that they can be moved towards and away from one another (P) and which in an initial state are held in a locking position at a distance from one another by a locking device (17), with forming means (14, 15) arranged between the upper and lower elements, which forming means, when the staple has been fully driven into the workpiece at its insertion area (26) by the driver, are activated to bend the staple legs towards the workpiece as a result of the upper and lower elements moving towards one another when the locking device is released by an activating means (22) which is part of the locking device (17) being acted upon by an unlocking means (7) disp

Abstract: A stapler has a drive train that drives a stapling head toward a base part in a driving stroke and away from the base part in a return stroke. To accommodate thick workpieces to be stapled, without jamming, the drive train includes a coupling constructed so that its effective connection between coupled parts is releasable and so that it loses its effective connection during the driving stroke to prevent jamming.

Abstract: A stapler (1) by which a workpiece (11), preferably a sheaf of papers, is stapled together with a staple, which stapler (5) comprises a stapling head (2) accommodating staples and a driver (6) and connected pivotably by a pivot pin (4) to a bottom part (3) which comprises a lower element (9) and an upper element (8) which are connected to one another in such a way that they can be moved towards and away from one another (P) and which in an initial state are held in a locking position at a distance from one another by a locking device (17), with forming means (14, 15) arranged between the upper and lower elements, which forming means, when the staple has been fully driven into the workpiece at its insertion area (26) by the driver, are activated to bend the staple legs towards the workpiece as a result of the upper and lower elements moving towards one another when the locking device is released by an activating means (22) which is part of the locking device (17) being acted upon by an unlocking means (7) disp

Abstract: A stapler (1) for stapling a workpiece (5), especially a sheaf of papers, which stapler comprises a base part (2) and a stapling head (3) which are connected together by a connecting means (4) in such a way that they can move towards and away from one another in a reciprocating stapling movement (P) which has a first turning point (FIG. 1) and a second turning point (FIG. 3), which stapling head accommodates staples (14) and a driver (7) which is supported for sliding in the direction of the stapling movement and which during the course of the stapling movement drives a staple into the workpiece which is to be stapled, and said stapler also comprises a drive means (13) which, in the course of a driving stroke (N) which forms part of the stapling movement, starting from a point at which the stapling head and the base part are at a distance from one another, drives the stapling head and the base part towards one another to the second turning point (FIG.

Abstract: A stapler for driving staples (12) into a sheaf of papers comprises two guide elements (17, 17′, 17″; 18, 18′, 18″) for internal guidance of the legs (12a) of the staple (12) during the driving of the staple into the object. Each guide element (17, 17′, 17″; 18, 18′, 18″) consists of at least two substantially identical, separate guide parts (17, 17′, 17″; 18, 18′, 18″) successively arranged seen in the driving direction of the staple (12). Each guide part (17, 17′, 17″; 18, 18′, 18″) is movable between a first position, in which it extends into the driving path of the staple (12) to abut against the inside of the respective leg (12a) during the driving of the staple, and a second position, in which it is removed against spring action from the driving path of the staple (12).

Abstract: A stapler comprises a stapler head which accommodates a strip of wire staple blanks and is pivotable between a starting position and a working position, in which it is applied against a sheaf of papers. A staple shaper shapes the blanks into substantially U-shaped staples, and a staple driver releases the thus-formed staples from the strip and drives them one by one into the sheaf of papers. A pivotable operating device reciprocates the staple shaper and the staple driver. A drive device is adapted to pivot the operating device in such a manner that it causes the staple driver to drive a staple into the sheaf of papers in a driving stroke and causes the staple shaper to shape the following staple in a shaping stroke, as well as adapted to pivot the stapler head to its working position before the staple driver performs the driving stroke and retain it there during the driving stroke of the staple driver.

Abstract: A stapler for driving staples into a sheaf of papers comprising a base, a stapler head pivotably connected to the base via a first pin and pivotable between a starting position and a working position in which it is applied against a sheaf of papers placed between the base and the stapler head. A reciprocating drive element, adapted to drive a staple into the sheaf of papers during a driving stroke, is arranged in the stapler head. An operating mechanism, adapted to drive the drive element, is pivotably connected to the stapler head via a second pin parallel to the first pin. A drive mechanism is arranged in the base for pivoting the stapler head and the operating mechanism. A locking mechanism is arranged in the stapler head for releasably locking the stapler head in a working position while a staple is being driven into the sheaf of papers.