Keyboards for electronic pianos

Music – Instruments – General features

Patent

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Details

84433, 84439, 84440, 84441, G10C 312

Patent

active

056963408

ABSTRACT:
Improvements to keyboards for electronic pianos and the like, wherein a support, preferably made of sheet metal, with a U-shaped section and a flat section and provided with a number of hammers equal to the number of keys, which hammers are made integral with the support by means of specific pivoting elements. These hammers are preferably made of metal and suitably shaped and balanced for actuation by the keys. An elastic escapement member is carried by the portion of the hammer making contact with the key typically by coated with a rubber element provided little step which, when the key is depressed and the thrust element inside the key comes into contact with the step, produces a slight release, similar to the feeling of escapement one perceives when playing a conventional piano.

REFERENCES:
patent: 637069 (1899-11-01), Bell
patent: 4901614 (1990-02-01), Kumano et al.
patent: 5062342 (1991-11-01), Nagatsuma
patent: 5574241 (1996-11-01), Kumano et al.

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