Typewriting machines – Including type-set-assemblage mounted on carrier and... – Including type-faces movable relative to type-face-carrier
Patent
1987-03-02
1989-04-11
Burr, Edgar S.
Typewriting machines
Including type-set-assemblage mounted on carrier and...
Including type-faces movable relative to type-face-carrier
4001443, B41J 130
Patent
active
048200662
ABSTRACT:
A method for automatically coupling a typewheel rotatably mounted in a cassette to a typewheel positioning shaft. After the insertion of the typewheel supporting cassette into a typewriter or printer, a coupling sequence is initiated under the control of a microprocessor. During the coupling sequence the typewheel positioning motor is driven to turn a clutch part first in one and then in another direction by a certain angle causing coupling projections on the clutch part to engage corresponding coupling slots on the typewheel. During the coupling sequence, the typewheel is prevented from co-rotating unintentionally due to its moment of inertia and due to active frictional forces.
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Burr Edgar S.
Pham Huong Q.
TA Triumph-Adler Aktiengesellschaft
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