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    • 31. 发明授权
    • Releasable stop for a vehicle moving through a conduit
    • 车辆通过导管移动的可释放停止
    • US4108079A
    • 1978-08-22
    • US744616
    • 1976-11-24
    • Marion R. CarstensHomer J. Bates
    • Marion R. CarstensHomer J. Bates
    • B61B13/10B65G51/22B65G51/30
    • B65G51/22B61B13/10
    • A releasable stop for releasably stopping a vehicle moving through a conduit. A stop gate is supported for pivotal movement into and out of the path of movement of the vehicle. First and second arms are pivotally connected together between the gate and a support and a pneumatic piston and cylinder assembly actuates one arm for moving the gate between a closed and opened position. The pivoting arms are moved into or slightly past a dead center position when the gate is in the closed position whereby the impact of a vehicle engaging the gate will be transmitted to the support instead of to the piston and cylinder assembly. When the gate is closed, the dead center position of the arm maintains the stop gate in a locked position. The stop gate may be sized and shaped to entirely block the conduit to provide a dead end air cushion stop assist. In addition, the gate, the arms and the piston and cylinder assembly may be mounted on a movable support and a shock absorber may be connected to the movable support for resisting movement when heavy loads engage the gate.
    • 用于可释放地停止通过导管移动的车辆的可释放止动件。 枢转运动进入和离开车辆运动路径的止动门被支撑。 第一和第二臂在门和支撑件之间枢转连接在一起,气动活塞和气缸组件致动一个臂,以在关闭位置和打开位置之间移动门。 当门处于关闭位置时,枢转臂移动到或稍微超过死点位置,由此接合门的车辆的冲击将被传递到支撑件而不是传递到活塞和气缸组件。 当门关闭时,臂的死点位置将停止门保持在锁定位置。 止动门的尺寸和形状可以完全阻挡导管以提供死端气垫止挡辅助。 此外,闸门,臂和活塞和气缸组件可以安装在可移动支撑件上,并且减震器可以连接到可移动支撑件,用于当重负载接合门时抵抗运动。