公开(公告)号：US20070125825A1

公开(公告)日：2007-06-07

申请号：US11596541

申请日：2005-05-06

申请人： Mats Andersson ,  Mattias Palmquist ,  Trygve Gustavson ,  Per-Ake Hogberg

发明人： Mats Andersson ,  Mattias Palmquist ,  Trygve Gustavson ,  Per-Ake Hogberg

IPC分类号： B25C5/02

CPC分类号： B27F7/19

摘要： A stapler (1) for stapling together a workpiece (5), primarily a sheaf of papers, which stapler comprises a stapling unit (3) and a base part (2) which, by means of a connecting device (4), are connected in such manner that they can be moved toward and away from each other in a reciprocating stapling movement (P), wherein the stapling unit contains staples (8) and a driver (7) and the base part comprises a lower part (9) and an upper part (25) provided with a contact surface (26) provided with a staple opening (27) against which the workpiece to be stapled is placed during the stapling, wherein the upper part is connected to the lower part in such manner that it can be moved toward and away from the lower part during the stapling movement, wherein a latching arrangement (15, 28) is provided between the lower part and the upper part to prevent the upper part from being moved toward the lower part and wherein an anvil device (22) is arranged on the base part, wherein stapling is performed by moving the stapling unit and base part toward each other into contact with the workpiece, whereupon the driver drives a staple into the workpiece to a position in which the staple crown (34) is in contact with the workpiece and the staple legs (32,33) extend through the staple opening, whereupon a releasing device (30,3) arranged in the stapler releases the latching arrangement, whereupon the upper part and stapling unit are moved toward the lower part, whereby the staple legs are bent by the anvil device into contact with the underside of the workpiece, the anvil device (22) being attached to the to base part by means of an elastic element (19) in the area between the lower part (9) and the upper part (25), and being so arranged that it is moved toward the staple opening (27) by the elastic element to block the said opening when the stapler is in an initial position (FIG. 1).

公开(公告)号：US20070241162A1

公开(公告)日：2007-10-18

申请号：US11628784

申请日：2005-06-07

申请人： Mats Andersson ,  Mattias Palmquist ,  Trygve Gustafsson ,  Per-Ake Hogberg ,  Martin Elonsson

发明人： Mats Andersson ,  Mattias Palmquist ,  Trygve Gustafsson ,  Per-Ake Hogberg ,  Martin Elonsson

IPC分类号： B25C5/10

CPC分类号： B27F7/36 ,  B27F7/23

摘要： 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. 3) at which the stapling head and the base part are at their shortest distance from one another and are in clamping contact with the workpiece, and thereafter drives the driver to said second turning point, during which driving a staple is driven into the workpiece, after which the parts perform a return stroke (R) which brings them back to the starting point, wherein the drive means also comprises an activating arrangement (16) which is in connection via a first coupling (19) to the stapling head and the driver and via a second coupling (28) to the base part in such a way that during the stapling movement the activating arrangement varies the distance between the first and second couplings from a first extreme position in which the stapler is at the first turning point of the stapling movement to an opposite second extreme position in which the stapler is at the second turning point of the stapling movement wherein at least one of the couplings (19, 28) is releasable and is so arranged that in the course of the driving stroke (N) it is brought to a released position (FIG. 8) in which it loses its effective connection in the stapling movement direction (P) if the driving stroke (N) can not reach the second turning point (FIG. 3).