Patent ID: 7513452

Claim:
A rope securing mechanism comprising: an axial tube, said tube being adapted to retract and extend a rope, the axial tube having a surface, said surface including a first outwardly facing circumferential surface portion, a second radial surface portion and a third radial surface portion, said second and third radial surface portions being disposed facing and substantially adjacent to one another and fourth and fifth radial surface portions, said fourth and fifth radial surface portions being disposed in substantially parallel spaced relation to one another and to said second and third radial surface portions, said first circumferential surface portion including a helical rope slot disposed in a rope winding orientation; a rope securing mechanism located on the axial tube wherein one end of the rope is secured into a positioning hole, located on a curvature of a Y-shaped cross section on the first surface of the axial tube, where the rope exits from the positioning hole in an almost-tangent angle to the axial tube; and a stopper plate located on the axial tube between an installation hole and the positioning hole, where the stopper plate is part of the axial tube whereby the stopper plate is bent to let the rope slide into the positioning hole during installation of the rope, and after installation of the rope, the stopper plate is pressed down to prevent the rope from sliding back from the positioning hole into the installation hole.