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1. 发明公开

EP0912810A4 LOCK SYSTEM WITH KEY TRAPPING 失效
标题翻译： VERSCHLUSSSYSTEM MITSCLÜSSELFANGEINRICHTUNG
公开(公告)号：EP0912810A4
公开(公告)日：2001-02-07
申请号：EP97936120
申请日：1997-07-18
申请人： INTERNAT SECURITY PRODUCTS INC
发明人： EDEN CHARLES W JR
IPC分类号： E05B27/04 , E05B11/06 , E05B27/00 , E05B27/10
CPC分类号： E05B27/0064 , E05B11/06 , Y10T70/7768 , Y10T70/7774 , Y10T70/7864 , Y10T70/7932
摘要： A cylinder lock (10) comprises a shell (14), a core (12), and a plurality of pin tumbler stacks (22, 24). The core includes an outer surface, a keyway and a cut-out offset from, but alignable with, at least one of the tumbler stacks. A plate (34) disposed on the cut-out is movable between a first position, wherein the plate acts as an extension of the core surface to prevent a tumbler stack from entering the cut-out, and a second position, wherein the plate does not prevent a tumbler stack from entering the cut-out. Upon insertion of an authorized key (46) having a projection (58) extending from a side thereof, the projection urges the plate from the second position to the first position to permit the core to rotate to an unlocked position. Upon the insertion of a properly bitted key, but without the projection, only partial rotation is permitted whereupon the tumbler stack enters the cut-out to thereby render the lock inoperable and trap the unauthorized key within the keyway.
摘要翻译：圆柱锁（10）包括壳体（14），芯体（12）和多个销子制动栓堆（22,24）。芯部包括外表面，键槽和与至少一个转筒堆叠对齐但可对齐的切口。设置在切口上的板（34）能够在第一位置和第二位置之间移动，在第一位置板用作芯表面的延伸部以防止转筒堆进入切口，在第二位置板不会阻止滚筒堆进入切口。在插入具有从其一侧延伸的突起（58）的授权钥匙（46）时，突起将板从第二位置推动到第一位置以允许芯旋转到解锁位置。在插入适当咬合的钥匙但没有突出部分时，只允许部分转动，因此转筒堆进入切口从而使锁不能工作并将未经授权的钥匙扣入钥匙通道内。

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