Print character selection mechanism

Details Print character selection mechanism Print character selection mechanism

1977-04-27

1979-03-06

Coven, Edward M.

Printing

Selective or progressive

Bed and platen machines

101 95, 101110, B41J 130

Patent

active

041424638

ABSTRACT:
A print character selection mechanism for use with printers of the type wein print characters are circumferentially disposed about the character ring and are selectively positioned in a print position by deenergizing an electromagnetic coil is provided. Each of the character rings includes a ratchet gear having a plurality of circumferentially disposed teeth, which teeth correspond to print characters circumferentially disposed about the print character ring. The instant invention is particularly characterized by a comb-shaped yoke member having a plurality of selection yokes, associated with each of the character rings, and a common yoke supporting each of the selection yokes. An electromagnetic coil is disposed about each selection yoke and is normally energized to induce a flux field in the selection yoke. A plurality of selection members are normally disposed in a rest position in abutting engagement with a selection yoke when the electromagnetic coil is energized. A resilient biasing member is disposed in engagement with each of the selection members for resiliently biasing each of the selector means into engagement with a ratchet wheel associated therewith to thereby select a print position of the character ring when the electromagnetic coil, associated with the selection yoke, is deenergized.

REFERENCES:
patent: 3756147 (1973-09-01), Gross et al.
patent: 3821672 (1974-06-01), Sturm
patent: 3865030 (1975-02-01), Chida et al.
patent: 3875859 (1975-04-01), Busch
patent: 3878779 (1975-04-01), Clary
patent: 3910182 (1975-10-01), Wagner et al.
patent: 4033256 (1977-07-01), Hanaoka

Affiliated with

Also associated with

Rating

Print character selection mechanism does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Print character selection mechanism, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Print character selection mechanism will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-916468