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    • 1. 发明授权
    • Fire alarm extension apparatus and method
    • 火警报警器及方法
    • US5590759A
    • 1997-01-07
    • US383413
    • 1995-02-03
    • J. Riley HawkinsNicole E. Hawkins
    • J. Riley HawkinsNicole E. Hawkins
    • H01H15/00H01H23/14H01H17/14
    • H01H23/141H01H15/00
    • Fire alarm extension apparatuses (30, 100) permit actuation of a fire alarm pull switch (11, 21) by persons with a handicap by lowering the position at which the fire alarm pull switch (11, 21) can be actuated. The fire alarm extension apparatuses (30, 100) each comprise a clip (33, 133) for attachment to a pull lever (14, 24) of the fire alarm pull switches (11, 21). An elongated member (32, 132) is attached to the clip (33, 133) for permitting movement of the clip (33, 133) and the pull lever (14, 24) while at a position remote from the pull lever (14, 24) in a direction to permit actuation of the fire alarm pull switch (11, 21). In a first embodiment (30), the elongated member (33) is a flat rigid shaft which is mounted to a wall (31) via a mounting block (36) and is guided by dual parallel rails (37a, 37b) situated on the mounting block (36). Further, the lever (14, 24) is engaged by a C-shaped clip (33), and the shaft (32) has a T-shaped handle (34). In a second embodiment (100), the elongated member (132) is a coated wire which permits pivotal movement of the lever (14, 24) as well as the cover (12, 22) without mechanical stress to the apparatus (100). Further, the second embodiment has a frictional mechanism (151b) for inhibiting movement of the cord (132) for preventing inadvertent actuation of the switch (11, 21) and a mechanism (152, 153) for ensuring that a slanted-L-shaped handle (134) remains in a desirable posture for easy grasping by a person.
    • 火灾报警延伸装置(30,100)允许通过降低火灾报警器拉动开关(11,21)能够致动的位置来使具有障碍物的人致动火警报警拉动开关(11,21)。 火警报警延伸装置(30,100)各自包括用于附接到火警报警拉动开关(11,21)的拉杆(14,24)的夹子(33,133)。 细长构件(32,132)附接到夹子(33,133),用于允许夹子(33,133)和拉杆(14,24)移动,同时远离拉杆(14, 24)沿允许火警报警拉动开关(11,21)致动的方向。 在第一实施例(30)中,细长构件(33)是平坦的刚性轴,其经由安装块(36)安装到壁(31)上并且由位于所述第一实施例(30)上的双平行轨道(37a,37b) 安装块(36)。 此外,杆(14,24)由C形夹(33)接合,并且轴(32)具有T形手柄(34)。 在第二实施例(100)中,细长构件(132)是涂覆的线,其允许杠杆(14,24)以及盖(12,22)的枢转运动而没有机械应力到装置(100)。 此外,第二实施例具有用于阻止用于防止开关(11,21)的意外致动的绳索(132)的移动的摩擦机构(151b)和用于确保倾斜L形的机构(152,153) 手柄(134)保持在期望的姿势,以便人们轻松抓握。