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US 5,509,353 AGranted
Drum cleaning apparatus for printing machine
AssigneeShimizu Seisaku Kabushiki Kaisha
InventorHiroshi Aoki
Life of this patent
Estimating the term…
Abstract
A cleaning head on a cassette of a drum cleaning apparatus is moved into contact with a drum to be cleaned. A cleaning sheet is moistened and passed between the drum and the cleaning head. The cleaning head is made of a resilient sponge-like material that evenly presses the cleaning sheet against the cylindrical drum during the cleaning operation. The cleaning sheet moves in a direction opposite to a rotation of the drum. The cassette body is removable from the frame to avoid interfering with printing.
Claims5
A drum cleaning apparatus, comprising:
- a cassette body;
- first and second cassette frames on first and second sides of said cassette body;
- a roll shaft;
- said roll shaft being rotably attached between said first and second cassette frames;
- a cleaning sheet on said roll shaft;
- a cleaning head;
- means for suspending said cleaning head between said first and second cassette frames facing said drum;
- a winding shaft;
- means for moving said cleaning sheet from said roll shaft, across said cleaning head, and onto said winding shaft;
- means for impregnating a portion of said cleaning sheet with a cleaning fluid while said cleaning sheet is between said roll shaft and said cleaning head;
- means for moving said cassette body toward said drum, whereby said cleaning sheet over said cleaning head contacts said drum;
- said means for impregnating including a reservoir extending substantially between said first and second cassette frames;
- means for feeding a cleaning fluid to said reservoir;
- said cleaning sheet passing below said reservoir;
- means for transferring said fluid from said reservoir to said cleaning sheet;
- a receiving tray below said reservoir;
- and
- a space between said reservoir and said receiving tray for permitting said cleaning sheet to pass therebetween.
15 more elements
Dependencies are inferred from the claim text.