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    • 48. 发明申请
    • Elevator system without a moving counterweight
    • 电梯系统没有移动配重
    • US20070131490A1
    • 2007-06-14
    • US10554008
    • 2004-04-22
    • Bryan SiewertMark ThompsonRichard Holland
    • Bryan SiewertMark ThompsonRichard Holland
    • B66B7/10
    • B66B9/00B66B11/007B66B19/00
    • 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。
    • 50. 发明授权
    • Crane swing safety control
    • 起重机摆动安全控制
    • US4064997A
    • 1977-12-27
    • US671567
    • 1976-03-29
    • Eugene Richard HollandMelvin Glynn Schlieman
    • Eugene Richard HollandMelvin Glynn Schlieman
    • B66C15/06B66C23/94B66C13/48
    • B66C15/065B66C23/94
    • A system to prevent a crane turret and the boom carried thereby from rotating about the axis of the turret beyond a predetermined angular disposition, thereby to prevent the crane boom from being brought too close to high-tension wires or some other structure in the vicinity of which the crane is being operated. Means are provided for locked-in disposition at at least one, and preferably, two points about the 360.degree. arc circumscribing the turret with such means including projections adapted to trip limit switches extending radially outwardly from the rotatable turret. Each limit switch is connected into an electromagnetic circuit with the first switch to be tripped serving to actuate an audio and/or visual warning system, and the second switch to be tripped, an electromagnetic control of the fluid flow in a hydraulic or compressed air driving system. Such electromagnetic control overrides any manual control in the operator's cab of the hydraulic or air cylinder which releases or locks the brake band about the fixed post coaxial with the turret drum and about which the turret drum rotates. When such override occurs, the brake band is tightened to prevent further relative angular movement between the turret and the fixed post. Additionally, inductive means may be provided on the boom to detect undesirable proximity of the boom to high-tension lines and with such detection also to operate first, said warning device and then, the hydraulic or air cylinder override, thereby to prevent further angular rotation of the turret relative to said post.
    • 一种用于防止起重机转塔和由此承载的起重臂的转臂绕转台的轴线旋转超过预定的角度布置的系统,从而防止起重机吊臂太靠近高压线或其他附近的其它结构 起重机正在运行。 提供了用于锁定配置的装置,其在围绕360度弧的至少一个,优选地,两个点处以这种装置包括突起,这些突起适合于从可旋转的转台径向向外延伸的限位开关。 每个限位开关连接到一个电磁回路中,第一个开关被跳闸,用于启动音频和/或视觉警告系统,第二个开关被跳闸,在液压或压缩空气驱动中电磁控制流体流动 系统。 这种电磁控制优于液压或气缸的操作者驾驶室中的任何手动控制装置,其释放或锁定制动带围绕与转盘鼓同轴的固定柱并且转盘鼓旋转。 当发生这样的超越时,制动带被紧固以防止转台和固定柱之间进一步的相对角运动。 此外,可以在起重臂上设置感应装置以检测悬臂与高压线路的不期望的接近,并且通过这种检测也可以首先操作,所述警告装置,然后液压或气缸超驰,从而防止进一步的角度旋转 的炮塔相对于所述柱。