| 摘要 |
Core and spindle technology for use with ribbon materials. The invention has use in many environments in which a ribbon or sheet material is wound onto a core, for example in printers and related equipment used to produce data bearing identity documents. The core and spindle are constructed to prevent the core from locking on the spindle as a result of the core contracting as ribbon material is wound onto the core. The core and spindle permits contraction of the core without squeezing or binding the core to the spindle, so that the core can easily be removed from the spindle once the ribbon is wound onto the core. |
