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发明授权
US07469942B2 Delayed egress exit device 有权
延迟出口退出装置

Delayed egress exit device
摘要：
A touch bar (24) exit device (20) comprises a retractor element (50) disposed in the housing (22) for substantially restilinear movement. The retractor element (50) connects the touch bar (24) and the latch bolt (82) such that the retractor element (50) and the latch bolt (82) are moved toward the retracted position in response to movement of the touch bar (24). An electrically energizable locking mechanism (104) in the exit device (20) includes a reciprocating plunger (106) moving transverse to the retractor element (50). When energized, the locking mechanism (104) is operative to move the plunger (106) to the projected locking position to prevent retraction of the latch bolt. A time delay circuit is connected to the locking mechanism (104). A switch (120) actuated in response to movement of the touch bar (24) is connected to the time delay circuit for starting a predetermined time interval for temporarily delaying deenergization of the locking mechanism (104). When the time delay circuit interrupts power to the locking mechanism (104), the plunger (106) moves allowing the latch bolt (82) to move to the retracted position.
摘要（中）：

触摸杆（24）出口装置（20）包括设置在壳体（22）中用于基本上重复线性移动的牵开器元件（50）。 牵开器元件（50）连接触摸杆（24）和闩锁螺栓（82），使得牵开器元件（50）和闩锁螺栓（82）响应于触摸杆的移动而移向缩回位置 24）。 出口装置（20）中的电激活锁定机构（104）包括横向于牵开器元件（50）移动的往复式活塞（106）。 当通电时，锁定机构（104）可操作以将柱塞（106）移动到突出的锁定位置，以防止闩锁螺栓的缩回。 时间延迟电路连接到锁定机构（104）。 响应于触摸条（24）的移动而被启动的开关（120）连接到时间延迟电路，用于启动预定时间间隔，以暂时延迟锁定机构（104）的断电。 当时间延迟电路中断对锁定机构（104）的动力时，柱塞（106）移动，使得闩锁螺栓（82）移动到缩回位置。

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