Printing – Selective or progressive – Printing members
Patent
1984-12-20
1985-07-09
Staab, Lawrence J.
Printing
Selective or progressive
Printing members
474189, 474184, 474187, 400146, F16H 5536, B41J 120, B41J 160
Patent
active
045274703
ABSTRACT:
An improved pulley system for use with band printers or the like. A steel printing band is looped around a pair of capstans covered by sleeves made of elastomeric material. The sleeves include a plurality of downwardly angled flexible circumferential flanges and a lower horizontal rim. The band contacts the flanges and as the capstans rotate, inward force on the band is transferred to a downward force by means of the flanges. The downward force causes the band to move into contact with the lower horizontal rim, thereby vertically aligning the band in the printer. In an alternate embodiment, a plurality of non-flexible circumferential ridges are included. The central ridges extend farther out from the surface of the sleeve and serve to define a crown. The sleeve configuration serves to reduce wear and accurately align the printing band within the printer assembly.
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IBM Technical Disclosure Bulletin, vol. 15, No. 4, Sep. 1972, p. 1234; O. R. Iobst et al.
"Theory and Application of Lorig-Aligner Self-Centering Rolls" Manufactured by Standard Rubber Company, Inc., pp. 1-30.
Helms Clifford
Lytle Daniel R.
Smithbauer Donald J.
Bednarek Michael D.
Dataproducts Corporation
Staab Lawrence J.
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