| 摘要 |
A pusher assembly for use with a signature stacker pushes a stack of signatures from the stacker. The pusher assembly includes a pusher bar, a linkage for moving the pusher bar, and a controller for adjusting the length of travel of the pusher bar. The pusher bar is supported for reciprocating movement along a length of travel for engaging the stack of signatures. The linkage is connected to an extendible fluid cylinder which moves the linkage upon actuation to push the stack of signatures from the stacker. The controller actuates the fluid cylinder and is adjustable as a function of signature width for pushing various width stacks from the stacker.
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