Keyboard with a metal carrier plate

Details Keyboard with a metal carrier plate Keyboard with a metal carrier plate

1986-10-24

1988-09-27

Pearson, Charles A.

Typewriting machines

Key-board or key lever-actuating mechanism

340365R, 235145R, 400495, B41J 512

Patent

active

047737808

ABSTRACT:
A keyboard with a metal carrier plate and a guide frame for keys to be athed thereto. The guide frame has a base part which is provided with legs. The legs of the guide frame are inserted into openings in the carrier plate. To secure the guide frame to the carrier plate, each opening has a recess starting at the lower edge of the carrier plate and which terminates at a bracket which is formed as part of the carrier plate. The legs are provided with foot parts which slide into the recess located beneath the respective bracket, causing a peg to snap into another opening in the carrier plate. In such a manner, the guide frame is secured to the carrier plate.

REFERENCES:
patent: 3749872 (1973-07-01), Foster
patent: 3797630 (1974-03-01), Zilkha
patent: 3900712 (1975-08-01), Fukao
patent: 4202640 (1980-05-01), Schmidt et al.
IBM Technical Disclosure Bulletin, vol. 13, No. 7, Dec. 1970.
Journal Industrie Elektrik+Elektronik, Jan. 30, 1985, pp. 12-13.

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