Patent ID: 6550727
Filing Date: 2003-04-22
Classification: B62D,F16B,Y10T

Abstract:
A method for making a quick-change length-adjustable telescopic shaft, the method comprising the following steps:providing a tube member with a round cross section and circumferentially oriented grooves and ridges on an inside surface of the round tube member; deforming the grooved and ridged round tube member to form an oval tube member with a major inner diameter and a minor inner diameter; and inserting a non-round inner shaft axially into the flattened oval tube member, the inner shaft having a minor outer diameter less than the minor inner diameter of the oval tube member to allow axial insertion and having a major outer diameter greater than the minor inner diameter of the oval tube member such that rotation of the non-round inner shaft results in mating engagement with the circumferentially oriented grooves and ridges of the oval tube member.