Patent ID: 6220759
Filing Date: 2001-04-24
Classification: E05D,E05Y,F16C,G06F,Y10S

Abstract:
A positioning pivot comprisinga shaft provided with a first portion at one end thereof, and a second portion on the other end thereof the second portion having a first helical groove defined therein and a third portion formed on the free end thereof and provided with a second helical groove defined in a periphery thereof;a sleeve having the third portion of the shaft pivotally received therein and provided with at least one protrusion and a first helical slit; anda hinge butt having a first collar pivotally receiving the second portion of the shaft therein and with a second helical slit, a second collar securely receiving the sleeve therein and an extension integrally formed therewith and provided with at least one through hole;the first portion having at least one through hole defined therein;the orientation of the first helical groove and the second helical slit being differently orientated and the orientation of the second helical groove and the first helical slit being differently orientated.