Abstract: Staple magazine (7) for mounting to a stapler (1) used to staple together a workpiece (6), primarily a sheaf of papers, the said staple magazine comprising a container (8), in which elongated staple blanks (10) in the form of a strip (11) are stored, and a staple forming arrangement (9) comprising a forming punch (19), which bends the elongated staple blanks into the shape of a staple over a forming block (48), and a drive punch (20) with which the staple blanks which have been bent into staple shape for stapling the workpiece are driven into the said workpiece, the staple blanks stored in strip form being fed by a feeder plate (51) to a forming block (48) along a feed path (44) incorporated in the container, and the forming punch and drive punch being driven in a reciprocating bending and drive movement (P) by a drive arrangement (13-16) incorporated in the stapler, the container (8) and the staple forming arrangement (9) being connected to each other by means of releasable connecting devices (22, 23, 34, 35

Abstract: Staple magazine (7) for mounting to a stapler (1) used to staple together a workpiece (6), primarily a sheaf of papers, the said staple magazine comprising a container (8), in which elongated staple blanks (10) in the form of a strip (11) are stored, and a staple forming arrangement (9) comprising a forming punch (19), which bends the elongated staple blanks into the shape of a staple over a forming block (48), and a drive punch (20) with which the staple blanks which have been bent into staple shape for stapling the workpiece are driven into the said workpiece, the staple blanks stored in strip form being fed by a feeder plate (51) to a forming block (48) along a feed path (44) incorporated in the container, and the forming punch and drive punch being driven in a reciprocating bending and drive movement (P) by a drive arrangement (13-16) incorporated in the stapler, the container (8) and the staple forming arrangement (9) being connected to each other by means of releasable connecting devices (22, 23, 34, 35

Abstract: A staple-former (11) in a stapler (1) that uses a driver blade (10) to drive staples (17), preferably into a sheaf of paper (16). The stapler contains a magazine (7) of staple blanks (8). A feed device (6) advances staple blanks onto an integral bending die (15) for bending into staple shape. Each staple has a first and a second leg (18, 19) and a crown portion (20). The staple-former (11) includes first and second leg-bending parts (24, 26) and crown-forming part (28). A staple forms when a drive device (12, 13, 14), moves the leg-bending parts (24, 26) and the crown-forming part over the bending die (15) causing a staple blank (8) to assume a staple shape. The staple-former then reciprocates to its starting positions, the staple advances to the driver blade (10), and a biasing element (32) urges the crown-forming part (28) away from the staple-former (11).

Abstract: An anti-reversing device in the feed channel of a staple magazine containing staple blanks (ii), which magazine is accommodated in a stapler, wherein the staple blanks advance along a feed channel having channel guides (22) which support the staple blanks and wherein the supporting channel guides are equipped with stops (26) which prevent a staple blank which has advanced past the stops from moving in the direction opposite to the direction of feed.

Abstract: A clinching mechanism has an anvil composed of first (1), second (2) and third (3) plates arranged in a spaced apart stack with the second plate (2) positioned between the other two. The plates (1, 2, 3) are mounted on a housing (43) so as to be slidable relative thereto and the second plate is also connected to the first and third plates (1, 3) so as to be slidably movable relative to said first and third plates between a first aligned position in which at least one edge of the first, second and third plates (1, 2, 3) are aligned to form and anvil face and a second retracted position in which the second plate (2) is retracted from the anvil face. With the second plate in its aligned position, a staple to be clinched in received with its two legs (72) on either side of the second plate (2), the second plate operating to guide the legs (72) into engagement with associated clinching device (7, 8, 17, 18) positioned between the first and second, and the second and third plates.

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: An anti-reversing device in the feed channel of a staple magazine containing staple blanks (ii), which magazine is accommodated in a stapler, wherein the staple blanks advance along a feed channel having channel guides (22) which support the staple blanks and wherein said supporting channel guides are equipped with stops (26) which prevent a staple blank which has advanced past said stops from moving in the direction opposite to the direction of feed.

Abstract: A clinching mechanism has an anvil composed of first (1), second (2) and third (3) plates arranged in a spaced apart stack with the second plate (2) positioned between the other two. The plates (1, 2, 3) are mounted on a housing (43) so as to be slidable relative thereto and the second plate is also connected to the first and third plates (1, 3) so as to be slidably movable relative to said first and third plates between a first aligned position in which at least one edge of the first, second and third plates (1, 2, 3) are aligned to form and anvil face and a second retracted position in which the second plate (2) is retracted from the anvil face. With the second plate in its aligned position, a staple to be clinched in received with its two legs (72) on either side of the second plate (2), the second plate operating to guide the legs (72) into engagement with associated clinching means (7, 8, 17, 18) positioned between the first and second, and the second and third plates.