Patent ID: 6862776

Claim:
A positioning structure of a retractable handle comprising two mutually sliding tubes; a base defining an axial hole mounted on one end of the inner tube, and two cavities provided on both sides of the base, said two cavities communicating with the hole; two movable pieces mounted in each of the cavities of the base, the height of each of the movable pieces is smaller than the heights of the cavities, one face of each of the movable pieces having a slanting cambered face so that the width of the upper side of each of the movable pieces being bigger than the width of lower sides of each of the movable pieces, and the slanting cambered face of movable pieces provided with screw teeth; a rotating ring mounted on the outer tube, and one end of a rotating rod fixed on the rotating ring; a rotating cone having an axial multilateral hole, the cone being mounted in the hole of the base and positioned between the two movable pieces, and the outer periphery of the rotating cone provided with screw teeth to engage the screw teeth of the movable pieces, said rotating rod passing through the hole of the rotating cone, and one end of the rotating rod fixed on the rotating ring.