On the Torque Characteristic of a Crash-Lock Carton Base

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An important part of some packaging cartons is the crash-lock base. A recent investigation of the torque required for its erection has made some linearizing assumptions. It is here shown that these can be avoided as the relations connecting the angles between panels can be found. This also indicates that the final increase in the required torque is due to geometric effects rather than frictional ones.
Original languageEnglish
Article number084502
JournalJournal of Mechanical Design
Issue number8
Publication statusPublished - Aug 2009


  • packaging
  • torque
  • structural panels
  • cartons


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