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1. 发明授权

US4337987A Trapped-key security unit 失效
标题翻译：被密钥安全单元
公开(公告)号：US4337987A
公开(公告)日：1982-07-06
申请号：US185751
申请日：1980-09-10
申请人： Stuart M. Brooks , Martin R. Fagan
发明人： Stuart M. Brooks , Martin R. Fagan
IPC分类号： E05B11/04 , E05B11/00
CPC分类号： E05B11/04 , Y10T292/11 , Y10T292/65 , Y10T70/7768
摘要： A cabinet includes a locking mechanism which prevents removal of a key unless the cabinet door is properly closed and a prescribed item is properly positioned and stored within the cabinet. In a preferred embodiment, the cabinet door assembly includes a hinge which is slotted so as to accept a rotatable cam of the locking mechanism to prevent hinge movement in the locked position. The stored item has a magnet secured thereto which, when properly positioned in the cabinet, pulls a spring biased magnetized bar into a position wherein a slotted extension of the bar permits the cam to pass into the hinge slot. With the item improperly positioned or removed, the slotted bar extension prevents rotation of the lock by blocking passage of the cam into the hinge slot. The key and lock combination are standard items of the type which prevent key removal from the lock unless the lock is turned to the locked position.
摘要翻译：机柜包括一个锁定机构，防止钥匙拆卸，除非柜门正确关闭并且规定的物品正确定位并存放在机柜内。在优选实施例中，柜门组件包括铰链，其被开槽以便接纳锁定机构的可旋转凸轮，以防止铰链在锁定位置运动。存储的物品具有固定到其上的磁体，当适当地定位在机柜中时，将弹簧偏置的磁化杆拉到一个位置，在该位置，杆的狭槽延伸部允许凸轮进入铰链槽。当物品不正确地定位或移除时，开槽杆延伸部通过阻止凸轮通过铰链槽而阻止锁的旋转。钥匙和锁定组合是防止钥匙从锁上移除的标准物品，除非锁定被转向锁定位置。

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