Typewriting machines – Including type-set-assemblage mounted on carrier and... – Including type-faces movable relative to type-face-carrier
Patent
1982-09-08
1984-01-24
Burr, Edgar S.
Typewriting machines
Including type-set-assemblage mounted on carrier and...
Including type-faces movable relative to type-face-carrier
4001571, 400169, 400174, B41J 130
Patent
active
044273126
ABSTRACT:
A printwheel 20 for a daisy wheel printer 10, the printwheel 20 including a hub portion 23 and a plurality of radially extending, deflectable petals 21 projecting therefrom. The petals include a pad or tip 24 thereon with print forming indicia on one surface 24a thereof and a striking surface on the opposite surface 24b thereof adapted to be struck by a print hammer 30 to move the indicia against paper 16 or other print receiving medium. The striking surface 24b comprises first and second, axially projecting inclined surfaces 25, 26, each of the inclined surfaces being disposed, with respect to the other, to subtend an angle `AN` therebetween in plan. The striking surface 24b is disposed in such a manner as to be engaged by complementary inclined surfaces 32, 33 on the print hammer 30 whereby angular misalignment between the hammer 30 and the petal 21 may be compensated for by lateral deflection of the petal 21 to effect a detenting between the complementary inclined surfaces 25, 26 of the petal 21 and the print hammer 30.
REFERENCES:
patent: 3840105 (1974-10-01), Kittredge
patent: 4335970 (1982-06-01), Iwata et al.
Burr Edgar S.
Dick William J.
International Business Machines - Corporation
Pearson Charles A.
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