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Invention Grant
US08191939B2 Fire bolt assembly for door 有权
防火螺栓组合门

Fire bolt assembly for door
Abstract:
A fire bolt assembly (10) includes a receiving tube (20) mounted in a door (106). A mounting member (32) is mounted to the receiving tube (20) and includes two coupling faces (56). A positioning bolt (90) is received in the receiving tube (20) and includes a front end (92). A spring (100) is mounted in the receiving tube (20) for biasing the front end (92) of the positioning bolt (90) out of the receiving tube (20). A stop member (58) includes two legs (66) respectively engaged with the coupling faces (56) of the mounting member (32) to hold the positioning bolt (90) in the receiving tube (20). The front end (92) of the positioning bolt (90) is moved out of the receiving tube (20) to engage with a coupling hole (116) in another door (112) or a door frame when the stop member (58) melts due to the heat of the fire, locking the door (106) in place during the fire.
Abstract(Chinese):

防火螺栓组件（10）包括安装在门（106）中的接收管（20）。 安装构件（32）安装在接收管（20）上并且包括两个联接面（56）。 定位螺栓（90）被容纳在接收管（20）中并且包括前端（92）。 弹簧（100）安装在接收管（20）中，用于将定位螺栓（90）的前端（92）偏压到接收管（20）之外。 止动构件（58）包括分别与安装构件（32）的联接面（56）接合以将定位螺栓（90）保持在接收管（20）中的两个腿部（66）。 当止动件（58）熔化时，定位螺栓（90）的前端（92）从接收管（20）移出，以与另一个门（112）或门框中的联接孔（116）接合 由于火的热量，在火灾期间将门（106）锁定在适当位置。

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