公开(公告)号：US07040831B2

公开(公告)日：2006-05-09

申请号：US10322861

申请日：2002-12-20

申请人： Walter Rapaport

发明人： Walter Rapaport

IPC分类号： F16B27/00

CPC分类号： F16C11/12 ,  F16C11/103 ,  Y10T403/32262 ,  Y10T403/32319

摘要： An improved design of positioning mechanism, mountable to an upright, allows smooth, readily accomplished adjustment of the angular, rotational and translational positions of a boom with respect to the upright. A hub is mounted to and rotatable with respect to a base. A friction plate between the base and the hub applies frictional forces that are established by the mechanism, by urging the hub and base together. A pressure sleeve partially contained in a matching opening in the hub controls the rotational and longitudinal movement of the boom with respect to the hub. The design of the frictional engagement surfaces allows adjustment of the resistance to movement of the boom in the angular, rotational and translational directions to extend smoothly and predictably from a condition of virtually no resistance to a completely locked and rigid condition.

摘要翻译： 定位机构的改进设计可安装在立柱上，允许平稳，容易地实现悬臂相对于立柱的角度，旋转和平移位置的调整。 毂相对于基座安装并可旋转。 基座和轮毂之间的摩擦板通过将轮毂和底座一起推动而施加由机构确定的摩擦力。 部分地容纳在轮毂中的匹配开口中的压力套控制悬臂相对于轮毂的旋转和纵向移动。 摩擦接合表面的设计允许在角度，旋转和平移方向上调整悬臂的运动阻力，以从实际上对完全锁定和刚性状态的阻力几乎无阻碍地延伸。