Paper roll shipping plug

Abstract

Abstract A paper roll shipping plug formed of molded plastic material for insertion in the ends of a central tube in a paper roll and having a disklike central portion and a peripheral rim portion of channel shape in cross section surrounding the disk portion and to whose inner wall the disk portion is connected. The disk portion is positioned in a plane located mediate the ends of the inner wall of the rim and connected to the edge of the inner wall at the open end of the channel by an inner bevelled annular wall portion and an outer annular wall portion disposed in a plane parallel to the plane of the disk portion. The rim portion has inner crosswebs disposed in angular relation to radii of the plug and forming generally triangular cells open at the open end of the channel, and the outer wall of the rim has a bevelled portion at the closed end of the channel forming a taper for insertion into the end of the central tube of a paper roll. Radially extending webs or fins are provided connecting the disk portion with the inner wall of the rim and which taper radially inwardly of the disk portion. The device thus constructed forms a strong and durable plug which has sufficient resiliency to allow it to be readily driven into the end of the central tube of a paper roll while providing sufficient rigidity to maintain the plug in tight engagement with the inner surface of the tube.

Inventors

• 👤 Tarry W Nichols
• 👤 Robert L Nichols
• 👤 Marion A Kirby

Bibliographic Details