Brake for sheet stacks on a folding table
AssigneeKoenig & Bauer Aktiengesellschaft
InventorHans B. Bolza-Schunemann
Life of this patent
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Abstract
A brake assembly for stopping moving sheet stacks on a folding table of a rotary printing press and a method of operating the brake assembly is disclosed. A rotatable drum carries a plurality of axially extending stop rods spaced about the periphery of the drum. Each of these stop rods is carried on bearing arms that are spring biased. Each moving sheet stack contacts a stop rod which absorbs the energy of the moving sheet stack and causes it to stop on the folding table. The drum rotates in an intermittent fashion to bring a different stop bar into engagement with each succeeding sheet stack. A gear drive assembly for the brake assembly is also disclosed.
Claims10
A brake apparatus to slow-down and stop moving sheet stacks on a folding table of a web-fed rotary printing machine, said brake apparatus comprising:
- a plurality of resiliently supported stop rods, each of said stop rods being disposed horizontally and generally perpendicular to the direction of movement of said sheet stacks, a leading edge portion of each of said sheet stacks contacting one of said stop rods to move said rod from a rest position;
- a rotatable brake drum, means mounting each said rod on said brake drum for rotation therewith to slow-down and stop the forward movement of the sheet stacks on said folding table;
- means for resiliently biasing each said rod to allow it to move a distance with a stack of sheets wherein Kinetic energy is transferred from the braked stack of sheets to the rod and biasing means and
- means for intermittently rotating said brake drum to position succeeding stop rods for contact by said leading edge of succeeding sheet stacks whereby each said sheet stack is braked by engagement with one of said resilient stop rods.
Dependencies are inferred from the claim text.