Keyboard for typewriters or similar machines

Typewriting machines – Key-board or key lever-actuating mechanism – Including means generating a signal for type selecting or...

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400490, 200 5D, 200341, B41J 508

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active

048773476

ABSTRACT:
A keyboard for typewriters or similar machines has a key support, switching contacts and key push rods, each of which is acted upon by a spring. The design of the few individual parts assures their simple manufacture (extruded parts and a stamped part) as well as an assembly just as simple and therefore automated, and, if desired, even without screws or aids of that type. Activation of the individual keys takes place with satisfactory tactile feedback and without undesireable vibrations.

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patent: 4528428 (1985-07-01), Gotoh et al.
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patent: 4689608 (1987-08-01), Bolda et al.
patent: 4707578 (1987-11-01), Burkhardt
patent: 4713507 (1987-12-01), Burkhardt
IBM Technical Disclosure Bulletin, "Keyboard Assembly", Duranske, vol. 20, No. 9, Feb., 1978, p. 3614.

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