Printing hammer driver mechanism

Details Printing hammer driver mechanism Printing hammer driver mechanism

1983-07-01

1985-01-01

Sewell, Paul T.

Printing

Selective or progressive

Bed and platen machines

101 9319, 4001573, B41J 792

Patent

active

044910690

ABSTRACT:
A printing hammer drive mechanism for a printing apparatus, comprising a manual control member movably attached to a main frame, an electromagnet mounted on the main frame for movement relative to the armature thereof, linking means disposed between the control member and the electromagnet for changing the gap between the core and the armature of the electromagnet in accordance with the operation of the control member, and a member for transmitting movement of the armature from a rest position to a work position, to a printing hammer, wherein the impact force of the hammer can be suitably changed by operating the control member to change the gap between the core and the armature of the electromagnet.

REFERENCES:
patent: 3229798 (1966-01-01), Grashoff
patent: 3726213 (1973-04-01), Herbert
patent: 3888339 (1975-06-01), Nowak et al.
patent: 4348121 (1982-09-01), Clavel
IBM Technical Disclosure Bulletin, "Free Flight and Power Flight Adjustments" by Morgan et al., vol. 19, No. 4, p. 1323, 9-76.

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