Tubular core assemblies for rolls of paper or other sheet materi

Winding – tensioning – or guiding – Coil holder or support – Spool or core

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Details

2426112, B65H 7550

Patent

active

057251789

ABSTRACT:
A tubular core assembly for a roll of paper or other sheet material has a hollow cylindrical core member formed of paperboard material, and an annular end member of metal or plastic material within each opposite end portion of the core member. Each end member has an outer annular surface to the inner annular surface of the core member and an inner annular surface shaped to receive a roll supporting chuck. Each end member also has a pair of radially-projecting lugs at diametrically opposite positions at the respective end of the tubular core assembly, the core member has a pair of lug-receiving notches at diametrically opposite positions at each end receiving the lugs of the respective end member to facilitate transmission of torque and axial chuck pressure from the end member to the core member. Each end member further has as pair of notches at diametrically opposite positions extending inwardly from the respective end of the tubular core assembly for receiving a projection of a roll supporting chuck, each projection-receiving notch being located circumferentially mid-way between the pair of lugs.

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