Keyboard assembly

Details Keyboard assembly Keyboard assembly

1978-08-24

1981-02-03

Rubinson, Gene Z.

Music

Instruments

General features

84436, 84439, G10C 312

Patent

active

042481309

ABSTRACT:
A keyboard assembly incorporates a plurality of key members molded of thermoplastic material, each of the keys having an integrally formed pivot wall supported on a pair of pivot points disposed on a pair of pivot members integral with a pivot bracket. A key guide strip for the key member has a pair of vertically aligned projections, for supporting bumpers which guide the forward end of the key member and which provide a cushioning action for noiselessly stopping of upward movement of the key member.

REFERENCES:
patent: 3087368 (1963-04-01), Lund
patent: 3120146 (1964-02-01), Stiles
patent: 3447414 (1969-06-01), Lo Duca
patent: 3561315 (1971-02-01), Ohno
patent: 3663738 (1972-05-01), Nakada
patent: 3722351 (1973-03-01), Allen et al.
patent: 3835235 (1974-09-01), Amano
patent: 3855894 (1974-12-01), Thomas et al.

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