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    • 1. 发明申请
    • Extendable conveyor with boom brake
    • 带吊杆制动器的可伸缩输送机
    • US20070012548A1
    • 2007-01-18
    • US11482490
    • 2006-07-07
    • Shenghong YangJames Medley
    • Shenghong YangJames Medley
    • B65G15/60
    • B65G67/08B65G21/14
    • An extendable conveyor includes a support structure, and at least one extendable unit that is supported in a cantilevered manner and that is movable between an extended position and a retracted position nested within the support structure. The extendable unit has at least one support roller for rollingly engaging at least one of another extendable unit and the support structure as the extendable unit is extended or retracted. The conveyor includes a braking device operable to limit rotation of at least one support roller via selective engagement of a braking element with the support roller. The braking device is activatable to disengage the braking element from the support roller in response to actuation of a user input. The braking element is biased to engage the braking element with the support roller when the braking device is deactivated.
    • 可延伸的输送机包括支撑结构,以及至少一个可伸缩的单元,其以悬臂方式支撑并且可在嵌套在支撑结构内的延伸位置和缩回位置之间移动。 可延伸单元具有至少一个支撑辊,用于随着可延伸单元伸出或缩回而滚动地接合另一个可延伸单元和支撑结构中的至少一个。 输送机包括制动装置,其可操作以通过制动元件与支撑辊的选择性接合来限制至少一个支撑辊的旋转。 响应于用户输入的致动,制动装置可激活以将制动元件与支撑辊分离。 当制动装置停用时,制动元件被偏压以将制动元件与支撑辊接合。