Track and trolley with dual drive wheels having annular track engaging
surfaces of different diameters
    1.
    发明授权
    Track and trolley with dual drive wheels having annular track engaging surfaces of different diameters 失效
    具有双驱动轮的履带和手推车具有不同直径的环形轨道接合表面

    公开(公告)号:US4837891A

    公开(公告)日:1989-06-13

    申请号:US60477

    申请日:1987-06-11

    IPC分类号: E05D15/00 E05D15/06

    摘要: A track and trolley system that allows wall panels to be moved with a minimum amount of friction is disclosed. The system includes a track having a first rail, a second rail which is higher than the first rail, and a trolley having two drive wheels that engage the rails via annular track engaging surfaces of different diameters. Each drive wheel is independently rotatable in opposite directions. The system further includes a wall panel mount assembly haivng a housing integral with a movable wall panel and slide pads at track intersections to reduce the vertical elevational drop of a trolley when it moves across a track intersection.

    摘要翻译: 公开了一种允许以最小摩擦量移动墙板的轨道和推车系统。 该系统包括具有第一轨道的轨道,高于第一轨道的第二轨道和具有两个驱动轮的手推车,所述两个驱动轮通过不同直径的环形轨道接合表面接合轨道。 每个驱动轮可独立地在相反方向旋转。 该系统还包括一个壁板安装组件,该组件具有与可移动壁板一体的壳体和在轨道交叉点处的滑动垫片,以减小手推车在轨道交叉点移动时的垂直高度下降。

    Two-speed clutch with neutral
    2.
    发明授权
    Two-speed clutch with neutral 失效
    两档离合器带中性

    公开(公告)号:US4298110A

    公开(公告)日:1981-11-03

    申请号:US110170

    申请日:1980-01-07

    申请人: John W. Toma

    发明人: John W. Toma

    CPC分类号: F16D43/20 D06F37/36 F16D43/18

    摘要: A two-speed clutch arrangement is disclosed in which an input shaft is drivingly connected to an output drum through a system of clutch shoes so as to alternatively produce direct drive of the output drum, a reduced speed drive, or a neutral condition in which drive is not transmitted to the output drum. The clutch system includes centrifugally actuated primary clutch shoes driven by the input shaft and establishing drive to an inner drum, and two different sets of friction clutches interposed between the inner drum and the output drum. The first set produces a slipping or low speed drive of the output drum, while the second direct drive set controllably establishes direct or high speed drive. Shifting of the clutch arrangement is carried out by a trigger actuator, which activates clutch trigger arrangements associated with the primary clutch shoes and the direct drive clutch set. The trigger actuator is shifted between alternate positions in which either centrifugal actuation of the primary clutch shoes or the direct drive clutch set is allowed. Shifting the position of the trigger actuator prior to establishment of drive to the input shaft being initiated creates a neutral condition of the clutch.

    摘要翻译: 公开了一种双速离合器装置,其中输入轴通过离合器踏板系统驱动地连接到输出鼓,以便交替地产生输出鼓的直接驱动,减速驱动或中性状态,其中驱动 不传输到输出鼓。 离合器系统包括由输入轴驱动的离心致动的主离合器鞋和建立到内鼓的驱动,以及插入在内鼓和输出鼓之间的两组不同的摩擦离合器。 第一组产生输出鼓的滑动或低速驱动,而第二直接驱动装置可控制地建立直接或高速驱动。 离合器装置的移动由触发器执行器执行,该触发器致动器启动与主离合器靴和直接驱动离合器组相关联的离合器触发装置。 触发器致动器在允许主离合器踏板或直接驱动离合器组的离心致动的交替位置之间移动。 在启动驱动器到启动的输入轴之前移动触发器执行器的位置产生离合器的中立状态。