Keyboard device of electronic musical instrument

Details Keyboard device of electronic musical instrument Keyboard device of electronic musical instrument

1987-10-26

1989-07-11

Franklin, Lawrence R.

Music

Instruments

General features

84251, G10C 312

Patent

active

048460419

ABSTRACT:
A keyboard device of an electronic musical instrument has a keyboard frame, a plurality of keys which are aligned on the keyboard frame and which are vertically pivotable, a plurality of return springs each of which corresponds to one of the keys and has one end stopped by the key and the other end stopped by the keyboard frame so as to bias the key toward a nonstruck position, and a plurality of pivot members each of which is disposed on the keyboard frame at an end of a longitudinal axis of the key to correspond to one of the keys. The pivot member has a circular surface to be brought into slidable contact with a back end portion of the key so as to allow the key to perform pivotal movement. The back end portion of the key has a circular surface paired with the circular surface of the pivot member and is spring-biased against the circular surface of the pivot member by means of the return spring.

REFERENCES:
patent: 1246998 (1917-11-01), Pickard et al.
patent: 2565239 (1951-08-01), Kostka
patent: 2948180 (1960-08-01), Wood
patent: 3413885 (1968-12-01), Van der Lely

Affiliated with

Also associated with

Rating

Keyboard device of electronic musical instrument does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Keyboard device of electronic musical instrument, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Keyboard device of electronic musical instrument will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-428772