Printing – Selective or progressive – Bed and platen machines
Patent
1981-05-26
1985-12-10
Burr, Edgar S.
Printing
Selective or progressive
Bed and platen machines
101 9334, 4001442, 4001572, 267154, B41J 9127
Patent
active
045571929
ABSTRACT:
A pivoting means for pivoting back and forth a mechanical load such as a print hammer about a given axis and within a low amplitude angle includes two elongated leaf springs. The leaf springs are located in planes at a given angle with respect to each other but both planes being perpendicular to the plane of pivotation of the mechanical load. A frame fixed relative to the pivotable mechanical load is used for attaching the extremities of both elongated leaf springs. The mechanical load is attached to both leaf springs equidistant from their attached extremities. A power source pivots the mechanical load from its rest position to its work or print position causing the two leaf springs to be flexed in torsion. The torsion flexing generates a return torque for self restoring the mechanical load back to its original position.
REFERENCES:
patent: 2906522 (1959-09-01), Wagner
patent: 3110250 (1963-11-01), Fradkin
patent: 3276762 (1966-10-01), Thomas
patent: 3384216 (1968-05-01), Thayer
patent: 3442365 (1969-05-01), Ragland, III et al.
patent: 3504623 (1970-04-01), Staller
patent: 3631797 (1972-01-01), Johnston et al.
patent: 3670647 (1972-06-01), Funk et al.
patent: 3968744 (1976-07-01), Kasu et al.
patent: 4167343 (1979-09-01), Golobay
IBM Technical Disclosure Bulletin, vol. 19, No. 2, Jul. 1976, pp. 443-444, "Print Impression Control Device", J. E. Drejza.
Burr Edgar S.
International Business Machines - Corporation
Letson Laurence R.
Pearson Charles A.
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