Drive transmission for a pull sucker or forwarding sucker, in particular, for a device for correcting misaligned sheets

摘要

A drive transmission for a pull or forwarding sucker located in a suction head of a sheet feeder for translatorily driving a sucker- carrying support movable in a guide provided on a suction-head housing, the sucker-carrying support being connected articulatingly to at least one coupler swivelable about an axis extending transversely to the translatory motion of the sucker-carrying support, includes a first drive cam for moving the coupler and for effecting a forwarding motion, and a second drive cam for a roller lever mounted in the suction-head housing and being swivelably connected to the coupler, the second drive cam having a profile for leveling the translatory motion of the sucker- carrying support.