公开(公告)号：US4054008A

公开(公告)日：1977-10-18

申请号：US670514

申请日：1976-03-24

Applicant: Richard Edwin Phillips

Inventor： Richard Edwin Phillips

IPC: E05F15/72 ,  A62C2/12 ,  E05F3/22 ,  E05F15/20

CPC classification number: E05D15/54 ,  A62C2/12 ,  E05F15/72 ,  E05D15/48 ,  E05D2015/482 ,  E05F2003/228 ,  E05F3/222 ,  E05Y2201/218 ,  E05Y2201/41 ,  E05Y2201/422 ,  E05Y2201/462 ,  E05Y2800/00 ,  E05Y2800/25 ,  E05Y2800/746 ,  E05Y2900/132

Abstract: An automatic opening smoke vent door is provided which serves as a normal, self-closing exit door, and which is capable of being connected to a fire alarm circuit so that the door opens automatically in the event of a fire to allow smoke to be vented. The invention provides a member, preferably an L-shaped sub-frame, hinged to the normal door frame, and with an opening device acting between the door frame and the hinged member to urge this member from a closed position to an open position disposed at about 90.degree. to the door frame. The hinged member is normally held in the closed position by a solenoid operated latch, which is released to allow the member to open in the event of a fire. The door is itself hinged to the hinged member, and a normal door closer is connected between the hinged member and the door to allow the door to operate in the usual way when the hinged member is in the closed position.

Abstract translation: 提供一个自动打开的排气门，其作为正常的自动关闭出口门，并且能够连接到火灾报警电路，使得门在发生火灾时自动打开以允许排烟 。 本发明提供了一种铰链到普通门框架的构件，优选地是L形子框架，并且具有作用在门框和铰链构件之间的开启装置，以将该构件从关闭位置推动到位于 约90度到门框。 铰链构件通常由螺线管操作的闩锁保持在关闭位置，该闩锁被释放以允许构件在发生火灾时打开。 门本身铰接到铰链构件上，并且正常的门关闭器连接在铰链构件和门之间，以允许门在铰接构件处于关闭位置时以常规方式操作。