Indexing System with Improved Cam Control
Original Publication Date: 1981-Jan-01
Included in the Prior Art Database: 2005-Feb-10
Present platen indexing devices utilize a fixed input to a cam follower with a pull link attached between the cam follower and the bellcrank driving a pawl into the teeth of an index platen ratchet. The prior-art devices utilize a single solid link between the cam follower and the pawl bellcrank. By breaking the link, as illustrated in the figure, and forming the link of two separate links 10 and 12 interconnecting cam follower 14 and bellcrank 16, it is possible to still provide a pull on bellcrank 16 by the cam input to cam follower 14.