Convertible print head

Details Convertible print head Convertible print head

1988-08-15

1989-08-08

Wiecking, David A.

Typewriting machines

Typing by other than type-face or type-die

Character formation by impact

101 9305, B41J 312

Patent

active

048547522

ABSTRACT:
A convertible print head carrying a plurality of needles comprises a rear portion carrying members controlling the needles and a front one portion including a slidable third device at the rear portion. The front one portion includes a front bracket comprising two portions carrying industrial rubies in which are guiding channels for said needles arranged in vertical columns.
A first control device allows a relative displacement between said two portions so as to align or offset the positions of the needles in the columnar arrangements.
A second control device is adapted to displace vertically the two portions simultaneously by means of an electromagnet.
The front bracket is connected to an assembly by means of two flexible blades of the slidable third device.

REFERENCES:
patent: 3759359 (1973-09-01), Stellmach
patent: 4010835 (1977-03-01), Martin et al.
patent: 4256408 (1981-03-01), Shelton
patent: 4260270 (1981-04-01), Cavallari
patent: 4400101 (1983-08-01), Hendrischk
patent: 4447166 (1984-05-01), Ochiai
patent: 4459051 (1984-07-01), Kawai
patent: 4470713 (1984-09-01), Rossopoulos
"Displaceble Print Wire Guide"; R. J. Harris; IBM Tech. Disc. Bull.; vol. 26, No. 8, p. 3985; Jan. 1984.

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