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    • 4. 发明申请
    • ELEVATOR SYSTEM WITHOUT A MOVING COUNTERWEIGHT
    • 电梯系统没有移动计数器
    • WO2004094287A2
    • 2004-11-04
    • PCT/US2004/012420
    • 2004-04-22
    • OTIS ELEVATOR COMPANYSIEWERT, Bryan, RobertTHOMPSON, Mark, S.HOLOWELL, Richard, L.
    • SIEWERT, Bryan, RobertTHOMPSON, Mark, S.HOLOWELL, Richard, L.
    • B66B
    • B66B11/007B66B11/008B66B11/08
    • An elevator system (20) includes a cab (22) supported for movement within a hoistway. A plurality of cab-supported sheaves (36, 42) moves with the cab through the hoistway. A first hoistway sheave (38) is located near a first end of the hoistway, and a second hoistway sheave (40) is located near a second end of the hoistway. A load bearing member (30) is provided, which (i) extends from near the first end of the hoistway toward the cab, where the load bearing member is redirected by one of the plurality of cab-supported sheaves toward the first end of the hoistway, (ii) at least partially wraps around each of the first hoistway sheave and the second hoistway sheave, and (iii) extends from near the second end of the hoistway toward the cab, where the load bearing member is redirected by another of the plurality of cab-supported sheaves toward the second end of the hoistway. A tension device (44) maintains tension in the load bearing member.
    • 电梯系统(20)包括支撑在井道内运动的驾驶室(22)。 多个驾驶室支撑滑轮(36,42)随驾驶室通过井道移动。 第一井道滑轮(38)位于井道的第一端附近,第二井道滑轮(40)位于井道的第二端附近。 提供一种承载构件(30),其(i)从井道的第一端附近朝向驾驶室延伸,其中承载构件由多个驾驶室支撑的滑轮中的一个朝向第一端重定向 (ii)至少部分地包裹在第一井道滑轮和第二井道滑轮中的每一个周围,并且(iii)从井道的第二端附近朝向驾驶室延伸,其中承载构件被另一个 多个驾驶室支撑的滑轮朝向井道的第二端。 张紧装置(44)保持承载构件中的张力。