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公开(公告)号：EP0920963A1
公开(公告)日：1999-06-09
申请号：EP98121695.5
申请日：1998-11-13
IPC分类号： B27F7/21
摘要： A stapling device (1) has a holddown element (9), a staple forming member (7), and a staple driving means (6), which are guided linearly and are movable perpendicular to the upper side of a sheet stack (10) to be stapled.
A first pressure spring (13) with a lower spring force (C1) is associated with the holddown element (9). A second pressure spring (14) whose spring force (C2) is greater than that of the first pressure spring (13), is associated with the staple forming member (7). A third pressure spring (15) is associated with the staple driving means (6), its spring force (C3) being greater than that of the second pressure spring (14). The pressure springs (13, 14, 15) are arranged with identical working directions perpendicular to the upper side of the sheet stack (10).
The first pressure spring (13) is arranged in preloaded fashion between the holddown element (9) and the staple forming member (7, 7a). The second pressure spring (14) is arranged in preloaded fashion between the staple forming member (7, 7a) and the staple driving means (6, 6a). The third pressure spring (15) is arranged in preloaded fashion between the staple driving means (6) and a drive head (5) on which engages an eccentric drive (4, 17) which moves the stapling device (1) in the direction of the arrow (B) onto sheet stack (10), and thereby controls a force-controlled drive mechanism of the stapling device (1) in an operationally correct sequence.摘要翻译： 装订装置（1）具有直线引导且可垂直于纸张堆叠（10）的上侧移动的压紧元件（9），订书钉形成构件（7）和订书钉驱动装置（6） 被钉住。 具有较低弹簧力（C1）的第一压力弹簧（13）与压紧元件（9）相关联。 其弹簧力（C2）大于第一压力弹簧（13）的第二压力弹簧（14）与钉成形构件（7）相关联。 第三压力弹簧（15）与钉驱动装置（6）相关联，其弹簧力（C3）大于第二压力弹簧（14）的弹簧力。 压力弹簧（13,14,15）以垂直于纸张堆叠（10）的上侧的相同的工作方向布置。 第一压力弹簧（13）以预紧方式布置在压紧元件（9）和钉成形构件（7,7a）之间。 第二压力弹簧（14）以预加载的方式布置在钉形成构件（7,7a）和钉驱动装置（6,6a）之间。 第三压力弹簧（15）以预加载方式设置在钉驱动装置（6）和驱动头（5）之间，驱动头（5）接合偏心驱动装置（4,17），该偏心驱动装置使订钉装置 （B）到纸张堆叠（10）上，从而以操作正确的顺序控制装订装置（1）的受力控制的驱动机构。
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