公开(公告)号：US06698138B1

公开(公告)日：2004-03-02

申请号：US10412073

申请日：2003-04-09

Applicant: Chin Tang Lin

Inventor： Chin Tang Lin

IPC: E05D1300

CPC classification number: E05D15/0639 ,  E05F15/643 ,  E05Y2201/614 ,  E05Y2201/64 ,  E05Y2201/702 ,  E05Y2600/20 ,  E05Y2900/132 ,  Y10T16/3834

Abstract: An adjustable pulley assembly includes a fixing plate securely mounted on top of an upper frame of a suspended door, an adjusting seat mounted to the fixing plate, a pulley seat securely attached to the adjusting seat to move therewith, a pulley attached to the pulley seat, and an adjusting bolt. An axle is extended through the pulley, a screw hole in the pulley seat, and a vertical slot in the adjusting seat, and a nut is engaged on a distal end of the axle. An adjusting bolt is extended through a hole in a top plate of the pulley seat and a screw hole in a top plate of the adjusting seat. A distance between the top plate of the pulley seat and the top plate of the adjusting seat is changed when the adjusting bolt is turned.

Abstract translation: 可调节滑轮组件包括牢固地安装在悬挂门的上框架的顶部的固定板，安装到固定板的调节座，固定地附接到调节座以与之移动的滑轮座，附接到滑轮座的滑轮 ，和调节螺栓。 轴通过滑轮延伸，滑轮座中的螺孔和调节座中的垂直槽，并且螺母接合在轴的远端。 调节螺栓延伸通过滑轮座顶板的孔和调整座的顶板中的螺孔。 当调整螺栓转动时，皮带轮座顶板与调节座顶板之间的距离发生变化。