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).

Abstract: A locking device in a stapler adapted to lock a displaceable member carrying a catch for an object to be stapled in an optional position along a bar. The bar extends through a hole in a locking element. The locking element is connected to the displaceable member and is tiltable along the bar from a pinch position in which the locking element is pinched to the bar to a free position in which the locking element is free from the bar. The locking element is spring-biased towards its pinch position. An operating handle mounted on the displaceable member and operable outside the stapler is displaceable to a limited extent relative to the displaceable member. Exerting a forward force on the handle moves the displaceable member forward.

Abstract: Control device (21) for controlling, by means of a microprocessor (22), an electrical drive motor (2) that is incorporated in a stapler (1) and whose drive shaft (9) drives a staple driver (13) in a forward and reverse motion that has a defined start point and a defined reversing point, and which staple driver drives, during its forward motion, a staple (15) into a workpiece (17), preferably a sheaf of paper, wherein the control device (21) comprises a sensor (23) that senses the rotational speed of the drive shaft (9) and the number of rotations it has completed from the start point, and transfers the sensed information to the microprocessor (22) which, in a known manner, analyzes the obtained information and generates a control signal that controls the supply of current to the drive motor (2), whereupon the rotational speed of the drive shaft is regulated.

Abstract: A staple-former (11) in a stapler (1) in which staples (17) are driven by a driver blade (10) into a workpiece (16), preferably a sheaf of paper, wherein the stapler contains a staple magazine (7) in which are stored longitudinally extended filiform staple blanks (8). The staple blanks are advanced by a feed device (6) contained in the stapler onto an integral bending die (15), which bending die has an upper support surface (21) over which the staple blanks are bent by the staple-former into staple shape; a shape that exhibits a first and a second leg (18, 19) with an intermediate crown portion (20). The staple-former includes a first leg-bending part (24) and a second leg-bending part (26) with an intermediate crown-forming part (28) that exhibits a stamping surface (29).

Abstract: A stapler comprises a removable cassette, which contains a strip of staple blanks, and an advancing mechanism, which is arranged to advance the strip and which, to this end, has a feeding plate, which engages one flat side of the strip. The advancing mechanism comprises elements, which are arranged to interact with the removable cassette to move the feeding plate, during an initial phase of the cassette's removal from the stapler, to a neutral position, in which it has been disengaged from the strip, and to move the feeding plate, during a final phase of the reinsertion of the cassette or the insertion of a similar cassette into the stapler, to an engagement position, in which it engages the strip.

Abstract: A stapler comprises a removable cassette, which contains a strip of staple blanks, and an advancing mechanism, which is arranged to advance the strip and which, to this end, has a feeding plate, which engages one flat side of the strip. The advancing mechanism comprises elements, which are arranged to interact with the removable cassette to move the feeding plate, during an initial phase of the cassette's removal from the stapler, to a neutral position, in which it has been disengaged from the strip, and to move the feeding plate, during a final phase of the reinsertion of the cassette or the insertion of a similar cassette into the stapler, to an engagement position, in which it engages the strip.

Abstract: A locking device in a stapler is adapted to lock a member displaceable along a bar in an optional displacement position, said member carrying a catch for the object to be stapled. The locking device has a locking element connected to the displaceable member and displaceable together with the same, said locking elements having a through hole, through which the bar extends. The hole is designed such that the locking element is tiltable along the bar between a front position, pinch position, in which the locking element portion defining the hole engages the bar and pinches the locking element thereto, and a rear position, free position, in which this hole-defining portion goes clear of the bar. The locking element is spring biased towards its pinch position.

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 hand tool comprises a body (2), a handle member (3) pivotally mounted thereon and an operating member (4) which is displaceable relative to the body between a starting position and a turning position against the action of a force. The handle member (3) comprises an elbow lever element (10) which has a pivot pin (14) resting against a support (15) arranged in the body (2) and which is displaceable along the support perpendicular to the pivot pin (14). The elbow lever element (10) has a first arm (10') which is pivotable about the pivot pin (14) towards and away from the body (2), and a second arm (10") which is adapted to engage the operating member (4) when the first arm (10') pivots in the direction of the body (2) and to move the operating member from the starting position to the turning position against the action of said force.