Spindles are the most common accessory to load rolls of media onto large format printers.
Inserting a spindle into a media roll can sometimes be a challenge, especially when the media roll is long,
eg longer than 36” or when the roll is new, meaning that it can be particularly heavy.
Regardless of how you load the roll on the spindle you need a clearance area around you, either the size
of the spindle or that of the media roll.
This clearance area could be reduced to half and the loading process be simplified with a spindle consisting
of two parts, as if the standard full‐size spindle were cut in half, both parts being assembled back together
either by a fastening or a clipping system.
This concept proves all the handier as the spindle is longer, eg 44”or 60”
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INC, HP, "ASSEMBLABLE SPINDLE", Technical Disclosure Commons, (November 17, 2019)