B - Operations – Transporting – 41 – J
Patent
B - Operations, Transporting
41
J
184/11, 74/282,
B41J 2/515 (2006.01) B41J 25/00 (2006.01)
Patent
CA 1328576
ABSTRACT OF THE DISCLOSURE In a printer in which a shuttle is driven in reciprocating fashion by a rotating cam, a counterbalance assembly disposed on the opposite side of the cam from the shuttle and having a cam follower disposed along a common axis extending through the cam and a cam follower of the shuttle includes a mass in the form of a generally rectangular block mounting the cam follower at one of a pair of opposite ends thereof. Reciprocating movement of the block in response to rotation of the cam is provided by a pair of flex pivots coupled to opposite ends of a base and extending upwardly and coupled to the opposite ends of the block. The end of the block opposite the cam follower receives a spring disposed against a reference surface to bias the cam follower against the cam. A thin film of oil is maintained on the surface of the cam by an oiler which includes a resilient leaf spring mounted on the frame of the printer at one end thereof and resiliently biasing a porous sintered polyethylene element containing a quantity of oil and mounted at an opposite end of the leaf spring against the surface of the cam. The cam is rotatably driven by a DC motor having a rotor coupled to the cam and having a flywheel integrally formed with the rotor.
588493
Barrus Gordon Brent
Emenaker Leo Joseph
Radke Glen Richard
Printronix Inc.
Smart & Biggar
LandOfFree
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