Patent ID: 11858766
Assignee: BOBST MEX SA
Field: Handling (Mechanical engineering)
Classification: CPC B | IPC B

Claim 12:
13. A method for changing a sheet pile in a sheet feeder for a sheet treating machine, the method comprising:
detecting a limit height of a sheet pile being processed in the sheet feeder, wherein the sheet pile is supported on a pallet being arranged on a main pile supporting unit,
supporting the sheet pile by a residual pile supporting unit by pushing a plurality of residual pile bars into respective slots of the pallet,
withdrawing the pallet on the main pile supporting unit from the sheet pile and placing a replacement pallet carrying a replacement sheet pile on the main pile supporting unit,
bringing an upper end of the replacement sheet pile in contact with the plurality of residual pile bars such that the plurality of residual pile bars are engaged between a lower end of the sheet pile and the upper end of the replacement sheet pile, and
retracting the plurality of residual pile bars from a sheet pile region such that the sheet pile is supported on the replacement sheet pile, wherein the plurality of residual pile bars are freely movable in a direction orthogonal to a pallet surface while being retracted.