Patent ID: 6354644
Filing Date: 2002-03-12
Classification: B65H,B66C

Abstract:
Apparatus for handling rolls of material having a hollow core comprising:a support structure adapted to be lifted by a hoist; a rotary actuator having a selectively oscillated output shaft extending at an angle from the vertical; an arm having two portions, an upper portion connected to said rotary actuator shaft and extending therefrom, and a lower portion angled with respect to said upper portion, said lower portion flipped between a vertical position and a horizontal position by oscillation of said actuator output shaft; a stepped diameter holder mounted on said lower arm portion to project therefrom, said stepped holder having large and small diameters adapted to receive large or small diameter roll cores respectively; sets of gripping elements carried by said large and small diameters respectively; an actuator rod operatively associated with said gripper elements to be moved in and out to grip or release a roll core disposed on a respective diameter when said rod is moved axially; an actuator cylinder coupled to said actuator rod for powering said axial movement of said actuator rod.