Solenoid actuator for use in automatic performance piano

Details Solenoid actuator for use in automatic performance piano Solenoid actuator for use in automatic performance piano

1982-08-18

1985-04-30

Hix, L. T.

Music

Instruments

Automatic

84107, 84246, G10F 102, G10F 300, G10C 320

Patent

active

045136521

ABSTRACT:
In a solenoid actuator for use in an automatic performance keyboard instrument of the type comprising a key bed and a plurality of keys mounted on the key bed through seesaw mechanisms, electromagnetic actuators respectively corresponding to the keys and having a common yoke are disposed between the key bed and the keys. Each of the electromagnetic actuators independently actuates the corresponding key. The yoke and the electromagnetic actuators are assembled into a compact unit, thereby being readily incorporated between the key bed and the keys.

REFERENCES:
patent: 3088360 (1963-05-01), Hayden
patent: 3126782 (1964-03-01), Fauser
patent: 3160052 (1964-12-01), Gunter
patent: 3426304 (1969-02-01), Cannon et al.
patent: 3581254 (1971-05-01), Cannon et al.
patent: 3634877 (1972-01-01), Cannon et al.
patent: 4031796 (1977-06-01), Wilkes
patent: 4121496 (1978-10-01), Wilkes
patent: 4338847 (1982-07-01), Brennan et al.
patent: 6031796 (1977-06-01), Wilkes

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